Sma assembly threading device and sma assembly threading detection method

Abstract

This application discloses an SMA assembly threading device and an SMA assembly threading inspection method. The SMA assembly threading device includes a device fixing base plate. A coaxial cable feeding and conveying module, installed on the device fixing base plate, is capable of conveying and positioning the coaxial cable to the threading station. An SMA plug feeding module, installed on the device fixing base plate, is capable of conveying the SMA plug to the assembly station in a first preset direction. An SMA sleeve feeding module, installed on the device fixing base plate, is capable of conveying the SMA sleeve to the assembly station in a second preset direction. An SMA assembly module, installed on the device fixing base plate, is capable of assembling the SMA plug and SMA sleeve and stamping them to form an SMA assembly, and conveying the SMA assembly to the threading station. An SMA assembly threading module, installed on the device fixing base plate, is capable of threading the SMA assembly into the coaxial cable to form an SMA product. A vision inspection module, installed on the device fixing base plate, is capable of inspecting the state and dimensions of the SMA product.

Description

Technical Field

[0001] This application relates to the field of industrial automation technology, and in particular to an SMA assembly threading device and an SMA assembly threading detection method. Background Technology

[0002] In related technologies, the assembly and threading of SMA connectors typically relies on fully manual operation or semi-automated single-machine equipment. However, fully manual operation is not only inefficient and costly in terms of labor, but also susceptible to inconsistencies in the alignment accuracy and threading depth of the SMA stopper and SMA sleeve due to variations in worker skill, fatigue, and other factors, which can easily lead to poor contact. Semi-automated single-machine equipment can only automate a single process; for example, a standalone stamping machine still requires manual completion of the pre-assembly, loading / unloading, and threading of the SMA stopper and SMA sleeve. The processes rely on manual transfer between each step, making it impossible to form a continuous production flow, and the transfer process can easily cause product damage and contamination. Summary of the Invention

[0003] This application provides an SMA assembly threading device and an SMA assembly threading detection method.

[0004] This application provides an SMA assembly threading device, comprising: Device base plate; A coaxial cable feeding and conveying module is installed on the fixed base plate of the device and is configured to convey and position the coaxial cable to the threading station. The SMA rubber stopper feeding module is installed on the fixed base plate of the device and is configured to transport the SMA rubber stopper to the assembly station in a first preset direction. The SMA sleeve feeding module is installed on the fixed base plate of the device and is configured to transport the SMA sleeve to the assembly station in a second preset direction. The SMA assembly module is mounted on the device base plate and is configured to assemble the SMA plug and the SMA sleeve and stamp them to form an SMA assembly, and then transport the SMA assembly to the threading station. An SMA assembly threading module, mounted on the device mounting base plate, is configured to thread the SMA assembly into the coaxial cable to form an SMA product; and A visual inspection module, mounted on the device's base plate, is configured to inspect the status and dimensions of the SMA product.

[0005] In this way, by integrating multiple dispersed processes into a single automated production unit through modular design, core operations can be completed by replacing manual labor. This not only improves production efficiency but also eliminates the safety risks associated with manual stamping. Furthermore, the coordinated operation of each module in the SMA assembly and threading device ensures the stability of the production rhythm, avoids quality fluctuations caused by manual production, and saves production space while reducing labor and site costs.

[0006] In some embodiments, the coaxial cable feeding and conveying module includes a feeding and conveying component, a slide positioning component, and a coaxial cable fixing fixture; The material feeding and transporting component is configured to move the coaxial cable fixing fixture to the threading station; The slide positioning component is fixedly installed on the feeding and transporting component and is configured to position the coaxial fixing fixture; The coaxial cable fixing fixture is fixedly installed on the feeding and transport assembly and is configured to support and fix the coaxial cable.

[0007] In this way, automated conveying and precise positioning of coaxial cables can be achieved. Among them, the feeding and transporting components can ensure the continuity of material conveying, the sliding positioning components can ensure that the fixture is fixed in position without deviation after arriving at the threading station, and the coaxial cable can fix the fixture to firmly clamp the cable and prevent displacement during threading.

[0008] In some embodiments, the feeding and conveying assembly includes a timing belt, a guide rail, a connecting buckle, an aluminum profile bracket, a slide block, pulleys, a positioning shaft, and a positioning shaft fixing plate; the timing belt is connected to the slide block via the connecting buckle; the guide rail is fixed to the aluminum profile bracket; the pulleys are fixed around the edge of the slide block and engaged with both sides of the guide rail; the positioning shaft is connected to the slide block via the positioning shaft fixing plate. The slide positioning assembly includes a first fixing plate, a positioning cylinder, a positioning slide rail, and a positioning slot; the positioning cylinder is fixed to the aluminum profile bracket via the first fixing plate; the positioning slide rail is mounted on the first fixing plate; the positioning slot is slidably connected to the positioning slide rail; the output end of the positioning cylinder is connected to the positioning slot; the positioning slot is configured to position the coaxial fixing fixture by engaging the positioning shaft. The coaxial cable fixing fixture includes a fixture base plate, a fixing frame, a cable feeding groove, a clamping block, a baffle, and a cable support; the fixing frame is connected to the slide; the fixture base plate is mounted on the fixing frame; the cable feeding groove is disposed on the fixture base plate; the clamping block is disposed inside the cable feeding groove; the baffle is fixed on both sides of the cable feeding groove; and the cable support is fixed on the fixture base plate to support the coaxial cable.

[0009] For the material handling and conveying components, the use of synchronous belt drive ensures uniform movement of the slide. Furthermore, the cooperative structure between the pulley and guide rail reduces frictional resistance, thereby minimizing equipment wear and operating noise, and extending equipment lifespan. Additionally, the rigid connection between the positioning shaft and the slide provides a precise positioning reference for subsequent slide positioning components, ensuring the fixture stops at the same threading position each time, further improving production consistency. For the slide positioning components, the cylinder-driven slot-type positioning structure instantly completes positioning after the fixture reaches the workstation. Moreover, the rigid fit between the slot and the positioning shaft provides high positioning accuracy and stability, withstanding the reaction force during threading and preventing fixture displacement. Furthermore, the guiding effect of the positioning slide rail ensures the linearity of the slot movement, avoiding jamming and ensuring reliable positioning, thus providing a solid positioning guarantee for the threading process. For the coaxial cable fixing fixture, the wire feeding slot provides initial positioning of the coaxial cable, ensuring the cable is placed in the preset direction. Furthermore, the clamping block and the two side baffles form a three-sided clamping structure, which can effectively prevent the coaxial cable from shifting laterally and longitudinally during the cable threading process. In addition, the cable support can provide support for the cable end, avoid sagging deformation caused by the cable's own weight, and ensure that the end face of the coaxial cable remains parallel and aligned with the SMA assembly.

[0010] In some embodiments, the SMA plug feeding module includes a first mechanism fixing frame, a plug feeder, and a plug conveying assembly; The first mechanism mounting bracket is mounted on the device mounting base plate; The rubber stopper is mounted on the first mechanism frame and is configured to output the SMA rubber stopper. The rubber stopper conveying assembly is configured to convey the SMA rubber stopper output from the rubber stopper feeder to the assembly station of the SMA assembly module in a first preset direction; The rubber stopper conveying assembly includes fixing bolts, a first vibrator fixing plate, a first vibrator, a rubber stopper channel, a first channel cover plate, an SMA rubber stopper reversing limiting plate, a material guide, an SMA rubber stopper conveying pipe, a first sensor fixing block, and a rubber stopper material sensor. The first vibrator fixing plate is fixed to the first mechanism fixing frame by the fixing bolts. The bottom of the first vibrator is fixed to the first vibrator fixing plate, the rubber stopper channel is fixed to the top of the first vibrator, and the first channel cover plate is fixed above the rubber stopper channel. The SMA rubber stopper reversing limiting plate is fixed to the rubber stopper channel and is configured to assist the SMA rubber stopper in changing from a horizontal to a vertical direction. The material guide is fixed to the rubber stopper channel and connected to the SMA rubber stopper conveying pipe. The rubber stopper material sensor is mounted on the SMA assembly module through the first sensor fixing block and is configured to detect the material state in the SMA rubber stopper conveying pipe.

[0011] This system enables fully automated feeding and directional conveying of SMA rubber stoppers, replacing manual orientation and feeding operations, thereby improving feeding efficiency to meet the demands of high-speed production. Furthermore, the mechanical structure ensures that the stoppers are always conveyed to the assembly station in the correct orientation, preventing assembly defects caused by incorrect stopper orientation and reducing scrap rates. It should also be noted that the rubber stopper conveying assembly utilizes the natural difference in size between the head and tail of the stoppers, combined with the mechanical structure of the direction-changing limiting plate, to achieve automatic switching of the stoppers from horizontal to vertical orientation without the need for additional power units, resulting in a simple and reliable structure. Moreover, the material channel cover effectively prevents the stoppers from vibrating out of the channel during vibration conveying. In addition, the rubber stopper material sensor monitors the material status within the conveying pipe in real time, automatically controlling the start and stop of the feeder and vibrator to prevent material jamming caused by accumulation, thus ensuring the continuity and stability of the rubber stopper conveying. In some embodiments, the SMA sleeve feeding module includes a second mechanism fixing frame, a sleeve feeder, and a sleeve conveying assembly; The second mechanism mounting bracket is installed on the device mounting base plate; The sleeve feeder is mounted on the second mechanism fixing frame and is configured to output the SMA sleeve; The sleeve conveying assembly is configured to convey the SMA sleeve output from the sleeve feeder to the assembly station of the SMA assembly module in a second preset direction; The sleeve conveying assembly includes a support plate, a second fixed plate, a straight vibrator fixing bolt, a second straight vibrator fixing plate, a second straight vibrator, a sleeve material channel, a second material channel cover plate, a second sensor fixing block, and a sleeve material sensor. One end of the support plate is connected to the device base plate, and the other end is connected to the fixed plate. The second straight vibrator fixing plate is fixed to the fixed plate by the second straight vibrator fixing bolt. The bottom of the second straight vibrator is fixed to the second straight vibrator fixing plate. The sleeve material channel is fixed to the top of the second straight vibrator, and the second material channel cover plate is fixed above the sleeve material channel. The sleeve material sensor is installed on one side of the sleeve material channel through the second sensor fixing block and is configured to detect the material state inside the sleeve material channel.

[0012] This system enables fully automated feeding and directional conveying of SMA sleeves, maintaining a synchronized feeding rhythm with the SMA stopper feeding module. This ensures a stable material supply to the assembly station and prevents downtime due to material shortages. Furthermore, the mechanical structure ensures that the sleeves are always conveyed vertically to the assembly station, avoiding directional errors and tipping issues that can occur with manual feeding. This improves the success rate of SMA assembly, reduces manual intervention, and lowers worker workload. In addition, the material channel cover effectively prevents sleeves from jumping out of the channel during vibration, ensuring the safety and continuity of the conveying process. Moreover, the sleeve material sensor can detect the material level in the channel in real time. When the material level is low, the feeder automatically starts to replenish the material; when the material level is sufficient, feeding stops, thus preventing material accumulation that could cause jams and supply interruptions.

[0013] In some embodiments, the SMA assembly module includes an assembly conveying mechanism and an assembly stamping mechanism; The assembly conveying mechanism is configured to convey the SMA plug and the SMA sleeve to the stamping station; The assembly stamping mechanism is configured to stamp the SMA plug into the SMA sleeve to form the SMA assembly, and to convey the SMA assembly to the threading station of the SMA assembly threading module.

[0014] In this way, the automatic assembly and stamping of SMA rubber stoppers and sleeves can be integrated, replacing manual pre-assembly and stamping operations, thereby improving the efficiency of assembly and stamping.

[0015] In some embodiments, the assembly conveying mechanism includes a rubber stopper feeding cylinder, a rubber stopper feeding cylinder fixing plate, a rubber stopper pushing rod, a rubber stopper pushing rod limiting block, a rubber stopper unloading guide block, a two-stage conveying cylinder, a conveying cylinder fixing block, an assembly conveying base, an assembly conveying block, and a conveying block limiting block; The rubber stopper feeding cylinder is fixed on the assembly conveying base by the rubber stopper feeding cylinder fixing plate; The rubber stopper push rod is connected to the output end of the rubber stopper feeding cylinder, and the rubber stopper push rod limiting block is fixed on the rubber stopper feeding cylinder fixing plate and is provided on both sides of the rubber stopper push rod; The rubber stopper feeding guide block is fixed on the conveying cylinder fixing block and is configured to connect to the SMA rubber stopper conveying pipe and guide the SMA rubber stopper. The two-stage conveying cylinder is fixed to the assembly conveying base by the conveying cylinder fixing block; The assembly conveying block is connected to the output end of the two-stage conveying cylinder and is slidably disposed within the assembly conveying base; The conveying block is fixed at one end of the assembly conveying base and is configured to limit the movement distance of the assembly conveying block.

[0016] In this way, the rubber stopper pusher can accurately push the rubber stopper above the sleeve, and the height difference enables automatic pre-assembly of the rubber stopper and the sleeve without the need for an additional assembly mechanism. Furthermore, the two-stage conveying cylinder can complete two independent conveying stages—from the pre-assembled parts to the stamping station and from the finished product to the unloading station—with a single installation, thereby simplifying the mechanism design, reducing equipment costs, and avoiding the synchronization problems that may occur when multiple cylinders are used in tandem.

[0017] In some embodiments, the assembly stamping mechanism includes a mechanism fixing column, a mounting base plate, a stamping cylinder fixing column, a stamping cylinder fixing plate, a stamping cylinder, a stamping head, a stamping head guard plate, an air blowing auxiliary component, a riveting detection sensor, a riveting detection sensor fixing plate, an assembly unloading auxiliary block, an SMA assembly conveying pipe, an assembly detection sensor, and an assembly detection sensor fixing plate. The mechanism fixing column is installed on the device fixing base plate, the mounting base plate is fixed on the mechanism fixing column, the stamping cylinder fixing plate is fixed on the mounting base plate through the stamping cylinder fixing column, and the stamping cylinder is fixed on the stamping cylinder fixing plate; The stamping head is connected to the output end of the stamping cylinder, and the stamping head guard plate is installed on the side of the stamping head; The air blowing auxiliary component is installed on one side of the stamping cylinder fixed column and is configured to blow the stamped SMA assembly into the SMA assembly delivery pipe. The riveting detection sensor is fixed to the side of the mechanism fixing column by the riveting detection sensor fixing plate, and is configured to detect the pre-assembly state of the SMA rubber plug and the SMA sleeve; The assembly feeding auxiliary block is fixed on the mounting base plate and connected to the SMA assembly conveying pipe; The assembly detection sensor is fixed to the mounting base plate by the assembly detection sensor fixing plate and is configured to detect the material status in the SMA assembly conveying pipe.

[0018] In this way, the riveting detection sensor can detect in real time whether the rubber stopper can be correctly installed into the sleeve before stamping. If the rubber stopper is not detected or it is determined that the rubber stopper cannot be correctly pre-installed into the sleeve, the stamping will be automatically stopped and the assembly will be reset, thus avoiding the generation of defective products due to missing rubber stoppers. The air blowing auxiliary component can use compressed air to quickly blow the stamped SMA assembly into the conveying pipe, thus avoiding the problem of finished products getting stuck at the workstation and ensuring smooth material feeding.

[0019] In some embodiments, the SMA assembly threading module includes a material transfer mechanism, a threading mechanism, and a coaxial cable pressing mechanism; The material transfer mechanism is configured to transport the SMA assembly to the threading station; The threading mechanism is configured to thread the SMA assembly into the coaxial cable to form the SMA product. The coaxial cable pressing mechanism is configured to fix the coaxial cable during the threading process.

[0020] This enables fully automated threading of SMA assemblies and coaxial cables, replacing tedious manual threading and improving efficiency to meet the demands of mass production. The coaxial cable clamping mechanism firmly presses the coaxial cable before threading, effectively preventing slippage and ensuring consistent threading depth. The coordinated operation of the material transfer and threading mechanisms ensures accurate and rapid threading of the SMA assemblies into the coaxial cables, thereby improving threading success rate and product quality.

[0021] In some embodiments, the material transfer mechanism includes a mechanism mounting plate, an SMA assembly guide block, a material transfer cylinder, a material transfer cylinder fixing block, a material transfer block, a material transfer base, a feeding cylinder, a feeding cylinder fixing block, a material transfer block limiting member, a buffer, an assembly material detection sensor, and a sensor fixing plate; the mechanism mounting plate is fixed between the mechanism fixing columns of the SMA assembly module; the SMA assembly guide block, the material transfer cylinder fixing block, the material transfer base, the feeding cylinder fixing block, and the material transfer block limiting member are fixed sequentially. On the mechanism mounting plate; the transfer cylinder is fixed based on the transfer cylinder fixing block, the feeding cylinder is fixed based on the feeding cylinder fixing block, the transfer block is connected to the output end of the transfer cylinder and slidably disposed on the transfer base; the buffer is fixed on the transfer block limiting member to limit the movement distance of the transfer block and provide buffering; the assembly material detection sensor is mounted on the coaxial line pressing mechanism through the sensor fixing piece and is configured to detect the state of the SMA assembly material in the transfer block; The threading mechanism includes a threading cylinder, a threading cylinder support plate, an SMA assembly clamp, a clamp cylinder, and a clamp cylinder fixing plate; the threading cylinder support plate is connected to the device base plate, and the threading cylinder is fixed on the threading cylinder support plate; the clamp cylinder fixing plate is connected to the movable side of the threading cylinder, and the clamp cylinder is fixed on the clamp cylinder fixing plate; the SMA assembly clamp is connected to the clamp cylinder; the front end of the SMA assembly clamp has a flared chamfer, configured to guide the coaxial cable through the SMA assembly.

[0022] Thus, for the material transfer mechanism, the transfer block can separate the SMA assembly from the continuous conveying state through the storage trough. The assembly material detection sensor accurately detects the presence of the assembly within the transfer block, ensuring that the transfer action and subsequent threading action are only initiated after the material is detected in place. This prevents the threading mechanism from running idle, thereby improving production efficiency. Furthermore, the buffer absorbs the impact force of the transfer block's movement, reducing mechanism vibration and noise, extending equipment lifespan, and ensuring the accuracy of the transfer position. For the material transfer mechanism, the clamp cylinder provides stable clamping force, ensuring that the SMA assembly does not fall off or shift during threading. The flared chamfer at the front end of the SMA assembly clamp effectively guides the coaxial cable, allowing it to be easily and accurately inserted into the center hole of the assembly, thus avoiding threading failure and product damage caused by misalignment. In addition, the threading cylinder drives the clamp cylinder's overall movement, enabling automatic threading with controllable threading speed and depth, ensuring consistent threading quality.

[0023] In some embodiments, the threading mechanism includes a threading cylinder, a threading cylinder support plate, an SMA assembly clamp, a clamp cylinder, and a clamp cylinder fixing plate. The threading cylinder support plate is connected to the device base plate, and the threading cylinder is fixed on the threading cylinder support plate. The clamp cylinder fixing plate is connected to the movable side of the threading cylinder, and the clamp cylinder is fixed on the clamp cylinder fixing plate; The SMA assembly clamp is connected to the clamp cylinder; The front end of the SMA assembly clip has a flared chamfer, which is configured to guide the coaxial cable through the SMA assembly.

[0024] In this way, the clamp cylinder provides a stable clamping force, ensuring that the SMA assembly will not fall off or shift during threading. The flared chamfer at the front end of the SMA assembly clamp effectively guides the coaxial cable, allowing it to be easily and accurately inserted into the center hole of the assembly, thus preventing threading failures and product damage caused by misalignment. Furthermore, by driving the clamp cylinder with the threading cylinder, automatic threading is achieved, with controllable threading speed and depth, ensuring consistent threading quality.

[0025] In some embodiments, the coaxial cable pressing mechanism includes a pressing mechanism base plate, a pressing mechanism support plate, a pressing cylinder mounting plate, a pressing cylinder, a pressing silicone pad, and a silicone pad fixing component; The pressing mechanism base plate is connected to the device base plate, the pressing mechanism support plate is fixed on the pressing mechanism base plate, the pressing cylinder mounting plate is fixed on the pressing mechanism support plate, the pressing cylinder is fixed on the pressing cylinder mounting plate, and the pressing silicone pad is connected to the output end of the pressing cylinder through the silicone pad fixing member.

[0026] Therefore, using silicone pads as the wire clamping contacts allows for the utilization of silicone's elastic properties, providing sufficient clamping force to prevent the coaxial cable from slipping back during threading, while also avoiding scratches and indentations caused by metal clamps to the cable sheath. The clamping cylinder provides stable and uniform clamping force, ensuring consistent clamping results for each coaxial cable.

[0027] In some implementations, the visual detection module includes a detection and positioning component and a vision component; The detection and positioning component is configured to clamp and position the SMA product during the detection process; The detection and positioning component includes a detection and positioning cylinder, a detection and positioning cylinder mounting plate, and a positioning clamp; the detection and positioning cylinder is fixed to the pressure cylinder by the detection and positioning cylinder mounting plate, and the positioning clamp is connected to the output end of the detection and positioning cylinder; The vision component is configured to acquire images of the SMA product and detect the state and size of the SMA product; The vision component includes a detection camera, a camera mounting plate, a vision light source, and a light source mounting block; the detection camera is mounted on the pressure cylinder mounting plate via the camera mounting plate, and the vision light source is connected to the pressure mechanism support plate via the light source mounting block.

[0028] This enables fully automated, non-contact visual inspection of finished products, replacing manual visual inspection and thus improving inspection efficiency. Furthermore, machine vision inspection can accurately identify problems such as poor threading and appearance defects, and can precisely measure key dimensions such as threading depth and coaxiality, effectively avoiding missed and false detections. The inspection positioning component ensures the product's position remains fixed during inspection, improving the accuracy and reliability of inspection results and ensuring consistent product quality. Further, by using a positioning clamp driven by a detection positioning cylinder to quickly hold the SMA product before visual inspection, the SMA product remains stationary during inspection, avoiding image blurring and inspection errors caused by product movement or displacement. Moreover, the vision light source provides uniform and sufficient illumination to the inspection area, ensuring the inspection camera captures clear, high-quality product images, providing a reliable foundation for subsequent image analysis and inspection. The inspection camera's installation height can be flexibly adjusted to accommodate different SMA connector specifications and coaxial cables of different diameters, improving the device's versatility.

[0029] In some embodiments, the detection and positioning assembly includes a detection and positioning cylinder, a detection and positioning cylinder mounting plate, and a positioning clamp; The detection and positioning cylinder is fixed to the pressure cylinder by the detection and positioning cylinder mounting plate, and the positioning clamp is connected to the output end of the detection and positioning cylinder.

[0030] Thus, by using a positioning clamp driven by a positioning cylinder to quickly hold the SMA product before visual inspection, the SMA product can be kept fixed during the inspection process, thereby avoiding image blurring and inspection errors caused by product shaking or displacement.

[0031] In some embodiments, the vision component includes a detection camera, a camera mounting plate, a vision light source, and a light source mounting block; The detection camera is mounted on the pressure cylinder mounting plate via a camera fixing plate, and the visual light source is connected to the pressure mechanism support plate via the light source fixing block.

[0032] In this way, the visual light source can provide uniform and sufficient illumination to the inspection area, ensuring that the inspection camera captures clear and high-quality product images, providing a reliable foundation for subsequent image analysis and inspection. The inspection camera's installation height can be flexibly adjusted to accommodate different sizes of SMA connectors and coaxial cables of different diameters, improving the device's versatility.

[0033] This application also provides an SMA assembly threading detection method, applied to the above-mentioned SMA assembly threading device, the method comprising: The coaxial cable in the coaxial cable fixing fixture located in the coaxial cable feeding and conveying module is transported to the threading station based on the feeding and conveying component, wherein the coaxial cable fixing fixture is positioned based on the slide positioning component; Based on the rubber stopper conveying assembly, the SMA rubber stoppers output from the rubber stopper feeder of the SMA rubber stopper feeding module are conveyed to the assembly station of the SMA assembly module in a first preset direction. Based on the sleeve conveying assembly, the SMA sleeves output from the sleeve feeder of the SMA sleeve feeding module are conveyed to the assembly station of the SMA assembly module in a second preset direction. The assembly conveying mechanism based on the SMA assembly module transports the SMA plug and the SMA sleeve to the stamping station; The SMA plug is pressed into the SMA sleeve by the assembly stamping mechanism to form an SMA assembly, and the SMA assembly is then transported to the threading station of the SMA assembly threading module. The material transfer mechanism based on the SMA assembly threading module transports the SMA assembly to the threading station; The SMA assembly is threaded into the coaxial cable fixed by the coaxial cable pressing mechanism using the threading mechanism to form the SMA product. The SMA product is clamped and positioned by a detection and positioning component based on a vision inspection module. The vision component based on the vision inspection module acquires images of the SMA product and detects the status and size of the SMA product; The SMA product that has completed inspection is transported to the next process using a coaxial feeding and conveying module.

[0034] Therefore, this application also provides an SMA assembly threading inspection method, which is based on the aforementioned SMA assembly threading device. In this way, the SMA assembly threading device integrates multiple dispersed processes into a unified automated production unit through modular integrated design, replacing manual labor in core operations. This not only improves production efficiency but also eliminates the safety risks of manual stamping. Furthermore, the coordinated operation of each module in the SMA assembly threading device ensures the stability of the production rhythm, avoids quality fluctuations caused by manual production, and saves production space, reducing labor and site costs.

[0035] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0036] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein: Figure 1 This is one of the structural schematic diagrams of the SMA assembly threading device according to certain embodiments of this application; Figure 2 This is a second schematic diagram of the SMA assembly threading device according to certain embodiments of this application; Figure 3 This is the third schematic diagram of the SMA assembly threading device according to certain embodiments of this application; Figure 4 This is the fourth structural schematic diagram of the SMA assembly threading device according to certain embodiments of this application; Figure 5 This is the fifth of the structural schematic diagrams of the SMA assembly threading device according to certain embodiments of this application; Figure 6 This is the sixth of the structural schematic diagrams of the SMA assembly threading device according to certain embodiments of this application; Figure 7 This is the seventh schematic diagram of the SMA assembly threading device according to certain embodiments of this application; Figure 8 This is the eighth of the structural schematic diagrams of the SMA assembly threading device according to certain embodiments of this application; Figure 9 This is a flowchart illustrating the SMA assembly threading inspection method according to certain embodiments of this application. Detailed Implementation

[0037] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0038] SMA connectors, as the most widely used coaxial connectors in the field of radio frequency communication, are widely used in products such as 5G base station antennas, IoT communication modules, consumer electronics radio frequency terminals, and vehicle navigation systems. The quality of their assembly and wiring directly determines the stability of radio frequency signal transmission and the overall reliability of the product. In related technologies, the assembly and wiring of SMA connectors usually relies on fully manual operation, semi-automated single-machine equipment, or multi-station split-type automated production lines.

[0039] However, the entire manual operation relies entirely on manual labor to complete a series of processes, including identifying, orienting, pre-assembling, stamping, and threading the SMA stopper and sleeve. This method is not only extremely inefficient but also requires a significant investment of manpower. More importantly, manual operation is highly susceptible to fluctuations in operator skill level, fatigue, and individual skill differences, making it difficult to maintain consistency in the alignment accuracy, pressing depth, and threading length between the SMA stopper and sleeve. This can easily lead to quality problems such as poor contact, signal attenuation, and even electrical connection failure.

[0040] While semi-automated stand-alone equipment automates a specific process, it remains a discrete operation. Taking common stamping equipment as an example, manual pre-assembly of SMA stoppers and sleeves, loading and unloading of equipment, and subsequent threading are still required. The connection between processes relies on manual transfer, preventing a continuous production flow and leading to waiting and stagnation between processes. Furthermore, during manual transfer, products are easily bumped, scratched, or contaminated with dust and oil, affecting their appearance and reliability. In addition, because the processes are fragmented, overall production efficiency is limited by the pace of manual operation, failing to truly realize the full potential of automated equipment.

[0041] Based on the above issues, please refer to Figure 1 This application provides an SMA assembly threading device 1, comprising: Device fixing base plate 10; The coaxial cable feeding and conveying module 11 is installed on the device fixing base plate 10 and is configured to convey and position the coaxial cable 1101 to the threading station. SMA plug feeding module 12 is installed on device base plate 10 and is configured to transport SMA plug 1201 to assembly station in a first preset direction. SMA sleeve feeding module 13 is installed on device base plate 10 and is configured to transport SMA sleeve 1301 to assembly station in a second preset direction. SMA assembly module 14 is installed on device base plate 10 and is configured to assemble SMA plug 1201 and SMA sleeve 1301 and stamp them to form SMA assembly 1401, and then transport SMA assembly 1401 to the threading station. SMA assembly threading module 15, mounted on device mounting base plate 10, is configured to thread SMA assembly 1401 into coaxial cable 1101 to form SMA product; and The visual inspection module 16, mounted on the device mounting base plate 10, is configured to inspect the status and dimensions of the SMA product.

[0042] Specifically, the SMA assembly and threading device 1 provided in this application refers to a fully automated production equipment that integrates automatic feeding and positioning of coaxial cable 1101, automatic orientation feeding of SMA plug 1201 and SMA sleeve 1301, automatic assembly and stamping of SMA assemblies, automatic threading of SMA assemblies, and visual inspection of finished products. It is mainly used for the mass production of antenna SMA connectors. The SMA assembly and threading device 1 uses the device fixing base plate 10 as a unified installation foundation, and integrates six functional modules on it: coaxial cable feeding and conveying module 11, SMA plug feeding module 12, SMA sleeve feeding module 13, SMA assembly module 14, SMA assembly threading module 15, and visual inspection module 16.

[0043] The device mounting base 10 refers to the foundational support platform for the entire device, typically made of high-strength aluminum alloy or steel plate, possessing excellent flatness and rigidity. The mounting base 10 provides a unified installation reference for all other functional modules in the SMA assembly and threading device 1, ensuring the relative positional accuracy between modules, thereby guaranteeing the stability of equipment operation and the coordination accuracy between various processes. All other modules can be fixed to the mounting base 10 via bolts or welding, forming an inseparable integrated device.

[0044] The coaxial cable feeding and conveying module 11, installed on the device's fixed base plate 10, is primarily responsible for conveying the coaxial cable 1101 to be processed from the previous process to the threading station and for precisely positioning the coaxial cable 1101. The coaxial cable 1101 is a cable used for transmitting radio frequency signals, consisting of an inner conductor, an insulating dielectric layer, an outer conductor, and an outer sheath; it is the connection object of an SMA connector. The coaxial cable feeding and conveying module 11 moves the fixture carrying the coaxial cable 1101 via a conveying mechanism and precisely locks the fixture via a positioning mechanism, ensuring that the end of the coaxial cable 1101 is perfectly aligned with the subsequent threading mechanism 153.

[0045] The coaxial cable 1101 refers to the radio frequency coaxial cable segment used in the processing of the SMA assembly wiring device 1 provided in the embodiments of this application. It is usually composed of an inner conductor, an insulating dielectric layer, an outer conductor, and a protective sheath coaxially nested together. It can be used to transmit radio frequency signals. Specifically, it refers to the coaxial cable 1101 workpiece to be assembled, which is pre-cut to a specified length and has its ends stripped. Its exposed inner conductor is used to achieve electrical connection with the SMA assembly.

[0046] The SMA stopper feeding module 12 is installed on the device base plate 10 and is mainly responsible for sorting and conveying the bulk, irregularly arranged SMA stoppers 1201 to the assembly station according to a first preset direction. This SMA stopper feeding module 12 can sort the disordered stoppers into an orderly arrangement through a vibrating feeder and convey the stoppers to the assembly position in the correct posture through a conveying mechanism, avoiding the tedious operation of manually identifying the direction.

[0047] SMA plug 1201 is an insulating component in SMA connectors. It is usually made of insulating materials such as polytetrafluoroethylene and is used to isolate the inner and outer conductors of the SMA connector to ensure the transmission performance of radio frequency signals.

[0048] The first preset direction refers to the orientation of the SMA plug 1201 when it is conveyed to the assembly station. Specifically, it can be the vertical direction in which the central axis of the SMA plug 1201 is perpendicular to the plane of the device fixing base plate 10. This first preset direction can be achieved by the cooperation of the plug feed channel 1234 of the SMA plug feeding module 12 and the SMA plug reversing limiting plate 1236, so that the SMA plug 1201 can automatically change from the horizontal direction output by the plug feeder 122 to the vertical direction, ensuring that it can accurately fall into the inner cavity of the lower SMA sleeve 1301 to complete the pre-assembly.

[0049] The SMA sleeve feeding module 13 refers to the module installed on the device base plate 10, which is mainly responsible for sorting and conveying the bulk, irregularly arranged SMA sleeves 1301 to the assembly station according to the second preset direction. The SMA sleeve feeding module 13 can also adopt a combination of a vibratory feeder and a conveying mechanism to ensure that the sleeves enter the assembly stage in the correct direction.

[0050] SMA sleeve 1301 is the metal housing component of an SMA connector, typically made of brass or stainless steel, with a nickel or gold plating finish, used to provide mechanical support, electromagnetic shielding, and threaded connection.

[0051] The second preset direction refers to the orientation of the SMA sleeve 1301 when it is conveyed to the assembly station. Specifically, it can be the vertical direction in which the central axis of the SMA sleeve 1301 is perpendicular to the plane of the device fixing base plate 10. This second preset direction can be directly output by the sleeve feeder 132 of the SMA sleeve feeding module 13, so that the SMA sleeve 1301 stays at the assembly station with its opening facing upward, and remains coaxially aligned with the vertically falling SMA plug 1201.

[0052] The SMA assembly module 14, mounted on the device base plate 10, is primarily responsible for pre-assembling the SMA plugs 1201 and SMA sleeves 1301 delivered to the assembly station. Then, through a stamping process, the plugs are fully pressed into the sleeves to form a robust SMA assembly. The assembled assembly is then conveyed to the threading station. The SMA assembly module 14 can also transport the plugs and sleeves to the stamping position via a conveying mechanism. After pressing, the finished assembly is conveyed to the next process.

[0053] The SMA assembly is a semi-finished product formed by assembling and stamping SMA rubber plug 1201 and SMA sleeve 1301, and is the object of subsequent threading processes.

[0054] Stamping refers to the process in which the stamping cylinder 1425 drives the stamping head 1426 to apply a preset pressure in the vertical direction in the SMA assembly module 14, so as to completely press the SMA rubber plug 1201 pre-assembled in the inner cavity of the SMA sleeve 1301 into the specified depth, so that the SMA rubber plug 1201 and the SMA sleeve 1301 form an interference fit rigid connection, ensuring that the two are firmly connected without relative displacement, forming an SMA assembly with stable structure and reliable electrical performance.

[0055] The SMA assembly threading module 15 is mounted on the device mounting base plate 10 and is mainly responsible for accurately threading the SMA assembly into the pre-positioned coaxial cable 1101 to form a complete SMA product. The SMA assembly threading module 15 uses a transfer mechanism 151 to separate the SMA assembly from the conveying pipe and transport it to the threading position. Then, a clamping mechanism fixes the assembly, and finally, a drive mechanism threads the assembly into the end of the coaxial cable 1101, completing the connection between the connector and the cable.

[0056] The vision inspection module 16, mounted on the device mounting base plate 10, is primarily responsible for inspecting the status and dimensions of the SMA product after threading. This module 16 can acquire images of the product using an industrial camera, and then analyze the product using image processing algorithms to determine if there are defects such as incomplete threading, damaged rubber plugs, deformed sleeves, or exposed coaxial core wires. It also measures key dimensions to ensure that only qualified products can proceed to the next process.

[0057] The status and dimensions of the SMA product refer to the inspection objects and contents of the vision inspection module 16. Status may include whether the SMA assembly is fully inserted into the coaxial cable 1101, whether the inner conductor of the coaxial cable 1101 is properly inserted into the center hole of the SMA plug 1201, whether the SMA plug 1201 and the SMA sleeve 1301 are deformed or cracked, whether the outer sheath of the coaxial cable 1101 is damaged, whether the SMA assembly and the coaxial cable 1101 are misaligned after threading, and whether there are obvious scratches or foreign objects on the product surface, etc., reflecting its appearance and assembly condition. Dimensions may include key dimensional parameters affecting the product's electrical performance and subsequent assembly compatibility, such as the mating depth between the SMA assembly and the coaxial cable 1101, the total length of the SMA product, the height of the SMA plug 1201 protruding from the end face of the SMA sleeve 1301, and the stripping length of the coaxial cable 1101.

[0058] Furthermore, the production process between the modules can be as follows: The coaxial cable feeding and conveying module 11 first completes the conveying and positioning of the coaxial cable 1101, preparing for the threading process. Simultaneously, the SMA plug feeding module 12 and the SMA sleeve feeding module 13 can work in parallel, respectively completing the feeding and directional conveying of the plugs and sleeves. The SMA assembly module 14 receives components from the two feeding modules, completes assembly and stamping, and then conveys the SMA assembly 1401 to the threading station. The SMA assembly threading module 15 threads the SMA assembly 1401 into the coaxial cable 1101. Finally, the vision inspection module 16 performs quality inspection on the SMA finished products; products that pass the inspection are conveyed to the next process by the coaxial cable feeding and conveying module 11.

[0059] In summary, this application provides an SMA assembly and threading device 1, which integrates multiple dispersed processes into a single automated production unit through modular integrated design, replacing manual labor in core operations. This not only improves production efficiency but also eliminates the safety risks associated with manual stamping. Furthermore, the coordinated operation of each module in the SMA assembly and threading device 1 ensures the stability of the production rhythm, avoids quality fluctuations caused by manual production, and saves production space, reducing labor and site costs.

[0060] Please see Figure 2In some embodiments, the coaxial cable feeding and conveying module 11 includes a feeding and conveying assembly 111, a slide positioning assembly 112, and a coaxial cable fixing fixture 113; The material conveying component 111 is configured to move the coaxial cable fixing fixture 113 to the threading station; The slide positioning assembly 112 is fixedly installed on the feeding and transporting assembly and is configured to position the coaxial fixing fixture 113. The coaxial cable fixing fixture 113 is fixedly installed on the feeding and transport assembly and is configured to carry and fix the coaxial cable 1101.

[0061] Specifically, the coaxial cable feeding and conveying module 11 is responsible for conveying the coaxial cable 1101 to be processed from the previous process to the threading station, and for precisely positioning and reliably fixing the coaxial cable 1101, preparing it for subsequent automatic threading operations. The feeding and conveying component 111 is a power and conveying unit, equipped with an aluminum profile bracket 1114 and a slide block 1115 that can reciprocate along the aluminum profile bracket 1114. It is responsible for conveying the coaxial cable fixing fixture 113 carrying the coaxial cable 1101 from its initial position to the threading station. The slide block positioning component 112 is a positioning and locking unit, fixedly installed on the aluminum profile bracket 1114 of the feeding and conveying component 111. It is responsible for precisely positioning and locking the coaxial cable fixing fixture 113 after it arrives at the threading station, ensuring that the coaxial cable 1101 does not shift during the threading process. The coaxial cable fixing fixture 113 is a load-bearing and fixing unit, which is fixedly installed on the slide 1115 of the feeding and conveying assembly 111. It moves synchronously with the slide 1115 and is responsible for fixing the coaxial cable 1101 in the correct posture on the slide 1115 to prevent it from shifting, bending or twisting during the conveying and threading process.

[0062] In this way, the coaxial cable 1101 can achieve automated conveying and precise positioning. Among them, the feeding and conveying component 111 can ensure the continuity of material conveying, the slide positioning component 112 can ensure that the position of the fixture is fixed without deviation after it arrives at the threading station, and the coaxial cable 1101 can fix the fixture to firmly clamp the cable and prevent displacement during threading.

[0063] Please see Figure 2 In some embodiments, the material conveying assembly 111 includes a timing belt 1111, a guide rail 1112, a connecting buckle 1113, an aluminum profile bracket 1114, a slide block 1115, a pulley 1116, a positioning shaft 1117, and a positioning shaft fixing plate 1118. The timing belt 1111 is connected to the slide block 1115 via the connecting buckle 1113; Guide rail 1112 is fixed on aluminum profile bracket 1114; The pulley 1116 is fixed around the edge of the slide block 1115 and engaged with both sides of the guide rail 1112; The positioning shaft 1117 is connected to the slide 1115 via the positioning shaft fixing plate 1118.

[0064] Specifically, the synchronous belt 1111 refers to an annular transmission belt with equidistant teeth, typically made of neoprene or polyurethane, with steel wire rope or fiberglass embedded as a reinforcing layer. The synchronous belt 1111 meshes with the teeth of the pulleys for transmission, offering advantages such as accurate transmission ratio, high transmission efficiency, low noise, compact structure, and convenient maintenance, making it suitable for automated equipment requiring precise position control. In some embodiments, the synchronous belt 1111 in the SMA assembly threading device provided in this application can mesh with the driving and driven pulleys of a servo motor. The precise rotation of the servo motor is converted into linear motion through the synchronous belt 1111, thereby driving the slide 1115 to move.

[0065] The connecting buckle 1113 is a specially designed metal connector that securely connects the timing belt 1111 to the slide block 1115, ensuring accurate transmission of the timing belt 1111's movement to the slide block 1115. The connecting buckle 1113 is typically made of aluminum alloy or stainless steel, possessing sufficient strength and rigidity to withstand the tensile and impact forces during conveying. One end of the connecting buckle 1113 is bolted to the bottom of the slide block 1115, while the other end engages tightly with the teeth of the timing belt 1111, ensuring no relative slippage between the timing belt 1111 and the slide block 1115.

[0066] The slide 1115 refers to a rectangular metal platform, typically made of aluminum alloy, which offers advantages such as light weight, high strength, and good machinability. The slide 1115 serves as the support platform for the coaxial fixing fixture 113. Its top is connected to the fixing frame 1132 of the coaxial fixing fixture 113 by bolts, and pulleys 1116 are mounted on its bottom and sides. The dimensions and weight of the slide 1115 are designed according to the size and load of the coaxial fixing fixture 113 to ensure sufficient load-bearing capacity and motion stability.

[0067] The guide rail 1112 refers to the track that guides the slide 1115 to perform linear motion, and typically a high-precision linear guide rail pair 1112 is used. In some embodiments, the linear guide rail pair 1112 may consist of a guide rail 1112 strip and a slider. The guide rail 1112 strip is made of high-carbon steel, and its surface is hardened and ground, giving it high hardness and wear resistance. The slider contains balls or rollers, enabling it to roll without backlash on the guide rail 1112 strip with an extremely low coefficient of friction. The guide rail 1112 is fixed to the top of the aluminum profile bracket 1114, providing a precise motion track for the slide 1115 and ensuring the straightness and positional accuracy of the slide 1115's movement.

[0068] The aluminum profile bracket 1114 refers to a frame structure assembled from industrial aluminum profiles using corner fittings and bolts. It offers advantages such as light weight, high strength, easy installation, and flexible adjustment. The aluminum profile bracket 1114 supports the guide rail 1112 and other components of the feeding and conveying assembly 111, providing a stable foundation for the entire feeding and conveying system. The height and length of the aluminum profile bracket 1114 are designed according to the overall layout of the equipment and the conveying distance, ensuring that the coaxial fixing fixture 113 can move within appropriate height and distance.

[0069] The pulley 1116, also called a roller, is typically made of high-quality bearing steel, possessing advantages such as high hardness and wear resistance. In some embodiments, the pulley 1116 is bolted to the bottom and sides of the slide block 1115, with each slide block 1115 usually equipped with 4-8 pulleys 1116. The bottom pulleys 1116 support the upper surface of the guide rail 1112, bearing the weight of the slide block 1115 and the coaxial fixing fixture 113. The side pulleys 1116 are engaged on both sides of the guide rail 1112, limiting the lateral displacement of the slide block 1115 and preventing it from shifting during movement.

[0070] The positioning shaft 1117 is a cylindrical metal shaft, typically made of stainless steel, with a polished surface, exhibiting high dimensional accuracy and surface finish. The positioning shaft 1117 is fixed to the side of the slide 1115 via a positioning shaft fixing plate 1118, with its axis perpendicular to the direction of movement of the slide 1115. The function of the positioning shaft 1117 is to cooperate with the positioning slot 1124 of the slide positioning assembly 112 to achieve precise positioning and locking of the slide 1115. In some embodiments, the diameter of the positioning shaft 1117 is designed according to positioning accuracy and load requirements, typically 8-12 mm.

[0071] The positioning shaft fixing plate 1118 refers to a rectangular metal plate, typically made of aluminum alloy. The function of the positioning shaft fixing plate 1118 is to securely fix the positioning shaft 1117 to the side of the slide 1115, ensuring the positional accuracy and stability of the positioning shaft 1117. The positioning shaft fixing plate 1118 is fixed to the side of the slide 1115 with bolts, and the positioning shaft 1117 is fixed to the positioning shaft fixing plate 1118 through an interference fit or threaded connection, ensuring that the positioning shaft 1117 will not loosen or shift under impact.

[0072] Furthermore, the workflow of the material conveying component 111 can be as follows: a servo motor drives the drive pulley to rotate, and the drive pulley drives the synchronous belt 1111 to move through toothed meshing. The synchronous belt 1111 pulls the slide 1115 to move linearly along the guide rail 1112 through the connecting buckle 1113. The pulleys 1116 around the slide 1115 contact the upper surface and two sides of the guide rail 1112 respectively, converting sliding friction into rolling friction, which reduces motion resistance and ensures the straightness and stability of the slide 1115's movement. The positioning shaft 1117, fixed to the side of the slide 1115, moves with the slide 1115. When the slide 1115 reaches the threading station, the positioning shaft 1117 is aligned with the positioning slot 1124 of the slide positioning component 112, preparing for subsequent positioning operations.

[0073] Thus, by employing a synchronous belt drive, the slide 1115 can be guaranteed to move at a uniform speed. Furthermore, the mating structure between the pulley 1116 and the guide rail 1112 reduces frictional resistance, thereby reducing equipment wear and operating noise, and extending equipment lifespan. In addition, the rigid connection between the positioning shaft 1117 and the slide 1115 provides a precise positioning reference for the subsequent slide positioning assembly 112, ensuring that the fixture stops at the same threading position each time, further improving production consistency.

[0074] Please see Figure 2 In some embodiments, the slide positioning assembly 112 includes a first fixing plate 1121, a positioning cylinder 1122, a positioning slide rail 1123, and a positioning slot 1124; The positioning cylinder 1122 is fixed to the aluminum profile bracket 1114 by the first fixing plate 1121; The positioning slide rail 1123 is mounted on the first fixed plate 1121; The positioning slot 1124 is slidably connected to the positioning slide rail 1123; The output end of the positioning cylinder 1122 is connected to the positioning slot 1124; The positioning slot 1124 is configured to position the coaxial fixing fixture 113 by engaging the positioning shaft 1117.

[0075] Specifically, the first fixing plate 1121 refers to a rectangular metal plate, typically made of aluminum alloy or steel plate, possessing sufficient strength and rigidity to fix other components of the slide positioning assembly 112 to the aluminum profile bracket 1114, and to withstand the force of the positioning cylinder 1122 and the impact force during the positioning process. In some embodiments, the first fixing plate 1121 can be fixed to the side of the aluminum profile bracket 1114 by bolts, and its installation position is precisely adjusted to ensure that the positioning slot 1124 can accurately engage with the positioning shaft 1117 on the slide 1115.

[0076] The positioning cylinder 1122 is a pneumatic actuator that converts the pressure energy of compressed air into mechanical energy to drive a piston rod in linear reciprocating motion. The positioning cylinder 1122 has advantages such as rapid action, simple structure, convenient maintenance, and low cost, and is used in the positioning and clamping mechanisms of automated equipment. In some embodiments, the positioning cylinder 1122 of the SMA assembly threading device provided in this application can be a double-acting cylinder, capable of realizing both the extension and retraction of the piston rod, respectively completing the positioning and unlocking operations. It should be noted that the cylinder diameter and stroke of the positioning cylinder 1122 are designed according to the requirements of the positioning force and positioning stroke.

[0077] The positioning slide rail 1123 refers to a small linear guide rail 1112, typically a miniature linear guide rail 1112 set. The positioning slide rail 1123 guides the positioning slot 1124 in linear motion, ensuring the accurate direction of movement of the positioning slot 1124 and allowing it to smoothly engage with the positioning shaft 1117. In some embodiments, the positioning slide rail 1123 may consist of a guide rail 1112 strip and a slider. The guide rail 1112 strip is fixed to a fixed plate, and the slider is connected to the positioning slot 1124, enabling it to move linearly along the guide rail 1112 strip without backlash. It should be noted that the length of the positioning slide rail 1123 can be designed according to the stroke of the positioning cylinder 1122 to ensure that the positioning slot 1124 can fully engage and disengage from the positioning shaft 1117.

[0078] The positioning slot 1124 refers to a metal block with a V-shaped opening, typically made of stainless steel with a hardened surface, exhibiting high hardness and wear resistance. The angle and size of the V-shaped opening must match the diameter of the positioning shaft 1117 to achieve automatic centering and precise positioning. In some embodiments, when the positioning cylinder 1122 drives the positioning slot 1124 forward, the V-shaped opening gradually engages with the positioning shaft 1117. Utilizing the self-centering effect of the V-shaped surface, the slide 1115 is adjusted to a precise position and locked. It should be noted that the bottom of the V-shaped opening of the positioning slot 1124 is usually designed with a certain rounded corner to avoid rigid collision with the positioning shaft 1117, reducing wear and noise.

[0079] Furthermore, the working process of the slide positioning assembly 112 is as follows: When the slide 1115 arrives at the threading station under the drive of the feeding and conveying assembly 111, the position sensor installed on the equipment detects the arrival signal of the slide 1115, the control system issues a positioning command, the piston rod of the positioning cylinder 1122 extends, and drives the positioning slot 1124 to move forward along the positioning slide rail 1123. The V-shaped opening of the positioning slot 1124 first contacts the positioning shaft 1117. Guided by the V-shaped surface, the positioning slot 1124 gradually adjusts the slide 1115 to the precise position until the V-shaped opening is completely engaged in the positioning shaft 1117, firmly locking the slide 1115 at the threading station. At this time, the slide 1115 cannot move in any direction, ensuring that the coaxial line 1101 remains fixed during the threading process. After the threading is completed and visual inspection is performed, the control system issues an unlocking command, the piston rod of the positioning cylinder 1122 retracts, driving the positioning slot 1124 to disengage from the positioning shaft 1117, and the slide 1115 can continue to move under the drive of the feeding and transporting component 111, transporting the finished product to the next process.

[0080] Thus, by employing a cylinder-driven slot-type positioning structure, positioning can be completed instantly after the fixture reaches the workstation. Furthermore, the hard fit between the slot and the positioning shaft 1117 provides high positioning accuracy and stability, capable of withstanding the reaction force during threading and preventing fixture displacement. In addition, the guiding function of the positioning slide rail 1123 ensures the linearity of the slot's movement, avoiding jamming and ensuring reliable positioning, thereby providing a solid positioning guarantee for the threading process.

[0081] Please see Figure 2 In some embodiments, the coaxial cable fixing fixture 113 includes a fixture base plate 1131, a fixing frame 1132, a cable tray 1133, a clamping block 1134, a baffle 1135, and a cable support 1136. The fixing bracket 1132 is connected to the slide 1115; The fixture base plate 1131 is mounted on the fixing frame 1132; The wire laying groove 1133 is provided on the fixture base plate 1131; The clamping block 1134 is disposed inside the wire feeding groove 1133; The baffle 1135 is fixed on both sides of the wire feeding groove 1133; The line support 1136 is fixed on the base plate 1131 of the fixture to support the coaxial line 1101.

[0082] Specifically, the jig base plate 1131 refers to a rectangular metal plate, typically made of aluminum alloy with an anodized surface, offering advantages such as wear resistance and corrosion resistance. This jig base plate 1131 is the fundamental component of the coaxial cable fixing jig 113, used for mounting and supporting other jig components. In some embodiments, the jig base plate 1131 can be bolted to the top of the fixing frame 1132, and its flatness and dimensional accuracy are controlled to ensure that the coaxial cable 1101 can be placed horizontally on the jig.

[0083] The fixing frame 1132 refers to an L-shaped frame formed by bending a metal sheet, typically made of steel or aluminum alloy. The fixing frame 1132 secures the fixture base plate 1131 to the slide 1115 and raises the fixture base plate 1131 to a suitable height, aligning the end of the coaxial line 1101 with the height of the threading mechanism 153. In some embodiments, the vertical portion of the fixing frame 1132 can be bolted to the top of the slide 1115, and the horizontal portion can be bolted to the fixture base plate 1131. It should be noted that the height of the fixing frame 1132 can be designed according to the height of the threading mechanism 153 to ensure that the axis of the coaxial line 1101 and the axis of the threading mechanism 153 are on the same straight line.

[0084] The wire-laying groove 1133 refers to an elongated groove formed on the upper surface of the fixture base plate 1131. The width and depth of the groove can match the outer diameter of the coaxial line 1101, such as being 0.1-0.2 mm larger than the outer diameter of the coaxial line 1101. The function of the wire-laying groove 1133 is to restrict the lateral displacement of the coaxial line 1101 and ensure its straightness. In some embodiments, the inner wall of the wire-laying groove 1133 is polished, resulting in a smooth surface that will not scratch the outer sheath of the coaxial line 1101. It should be noted that the length of the wire-laying groove 1133 can be designed according to the machining length of the coaxial line 1101.

[0085] The clamping block 1134 refers to a rectangular metal or plastic block, typically made of nylon or polytetrafluoroethylene (PTFE), which offers advantages such as moderate weight, wear resistance, and the ability to avoid scratching the outer sheath of the coaxial cable 1101. The clamping block 1134 is placed inside the wire feeding groove 1133 and can move freely up and down under gravity. In some embodiments, the width of the clamping block 1134 is slightly smaller than the width of the wire feeding groove 1133, allowing it to slide freely within the groove. The height of the clamping block 1134 is slightly greater than the depth of the wire feeding groove 1133, ensuring it protrudes from the upper surface of the fixture base plate 1131, facilitating manual or automated lifting and placement of the coaxial cable 1101. It should be noted that the weight of the clamping block 1134 can be designed according to the required clamping force, such as 50-100g, ensuring sufficient clamping force to prevent displacement of the coaxial cable 1101 without damaging its outer sheath.

[0086] The baffles 1135 refer to two rectangular metal plates, typically made of aluminum alloy. The baffles 1135 are fixed to both ends of the wire feeding groove 1133 to restrict the position of the clamping block 1134 and prevent it from falling out of the groove. In some embodiments, the height of the baffles 1135 is slightly higher than the height of the clamping block 1134, thus blocking the clamping block 1134 without affecting the placement and removal of the coaxial cable 1101. It should be noted that the baffles 1135 can be bolted to the fixture base plate 1131, and their installation position is precisely adjusted to ensure that the clamping block 1134 can move freely within the wire feeding groove 1133.

[0087] The wire support 1136 refers to an L-shaped metal or plastic component, typically made of nylon or aluminum alloy. In some embodiments, the wire support 1136 can be fixed to the front end of the fixture base plate 1131, located at the outlet of the wire feeding groove 1133, to support the end of the coaxial cable 1101, preventing the end of the coaxial cable 1101 from sagging and ensuring accurate alignment between the end of the coaxial cable 1101 and the threading mechanism 153. It should be noted that the supporting surface of the wire support 1136 can be on the same horizontal plane as the bottom surface of the wire feeding groove 1133, ensuring that the coaxial cable 1101 remains horizontal. Furthermore, the height and length of the wire support 1136 can be designed according to the outer diameter and extension length of the coaxial cable 1101, typically supporting the portion of the coaxial cable 1101 extending 5-10 mm beyond the fixture base plate 1131.

[0088] The working process of the coaxial cable fixing fixture 113 is as follows: Before placing the coaxial cable 1101, the clamping block 1134 is lifted from the wire feeding groove 1133. Then, the coaxial cable 1101 is placed into the wire feeding groove 1133, with the front end of the coaxial cable 1101 extending out of the wire feeding groove 1133 and resting on the wire support 1136, while the rear end is fixed by the equipment from the previous process. Subsequently, the clamping block 1134 is released, and under the action of gravity, the clamping block 1134 automatically falls down, pressing on the upper surface of the coaxial cable 1101, firmly fixing the coaxial cable 1101 in the wire feeding groove 1133. The baffle 1135 prevents the clamping block 1134 from falling out from both ends of the wire feeding groove 1133, and the wire support 1136 supports the end of the coaxial cable 1101 to prevent it from sagging. After the threading is completed, the automated equipment lifts the clamping block 1134 again, and the processed coaxial cable 1101 can be removed from the fixture.

[0089] Thus, the coaxial cable 1101 is initially positioned by the cable tray 1133, ensuring that the cable is placed in the preset direction. Furthermore, the clamping block 1134 and the two side baffles 1135 form a three-sided clamping structure, effectively preventing lateral and longitudinal displacement of the coaxial cable 1101 during cable threading. In addition, the cable support 1136 provides support for the cable end, preventing sagging deformation due to the cable's own weight and ensuring that the end face of the coaxial cable 1101 remains parallel and aligned with the SMA assembly.

[0090] Please see Figure 3 In some embodiments, the SMA rubber stopper feeding module 12 includes a first mechanism fixing frame 121, a rubber stopper feeder 122, and a rubber stopper conveying assembly 123. The first mechanism fixing frame 121 is installed on the device fixing base plate 10; The rubber stopper 122 is mounted on the first mechanism fixing frame 121 and is configured to output SMA rubber stoppers 1201. The plug delivery assembly 123 is configured to deliver the SMA plugs 1201 output from the plug feeder 122 to the assembly station of the SMA assembly module 14 in a first preset direction.

[0091] Specifically, the first mechanism fixing frame 121 is the basic support structure of the entire SMA rubber stopper feeding module 12, and typically consists of four columns and a base plate. The columns are usually made of steel, which has advantages such as high hardness and strong load-bearing capacity. Their lower ends are fixed to the device fixing base plate 10 by bolts, and their upper ends are connected to the base plate. The base plate is a rectangular metal plate, typically made of steel or aluminum alloy, with sufficient strength and rigidity to support the weight of the rubber stopper feeder 122 and the rubber stopper conveying assembly 123. It should be noted that the height of the first mechanism fixing frame 121 can be designed according to the overall layout of the equipment and the discharge height of the rubber stopper feeder 122 to ensure that the rubber stoppers can smoothly enter the conveying assembly from the feeder. At the same time, by adjusting the tightness of the fixing bolts 1231, the height of the vibrator fixing plate can be finely adjusted to ensure that the inlet of the rubber stopper channel 1234 is precisely aligned with the outlet of the rubber stopper feeder 122, guaranteeing smooth material conveying.

[0092] The rubber stopper feeder 122 is a vibratory automatic feeding device consisting of a disc and a base. The disc, typically made of stainless steel with a polished surface, is a circular metal disc with a spiral ascending track to reduce friction between the material and the disc. The base contains an electromagnetic vibrator and spring plates, generating high-frequency, small-amplitude vertical and torsional vibrations. This causes the bulk rubber stoppers in the disc to gradually rise along the spiral track, and during this rise, a screening mechanism on the track removes stoppers that are oriented incorrectly. Ultimately, all stoppers are output horizontally from the disc's outlet. It should be noted that the vibration frequency and amplitude of the rubber stopper feeder 122 can be adjusted by a controller to accommodate rubber stoppers of different sizes and weights, achieving optimal feeding performance.

[0093] The rubber stopper conveying assembly 123 is the core part of the SMA rubber stopper feeding module 12. It is responsible for converting the horizontal rubber stopper output by the rubber stopper feeder 122 into the first preset direction and accurately conveying it to the assembly station.

[0094] The overall workflow of the SMA stopper feeding module 12 is as follows: Bulk SMA stoppers 1201 are poured into the tray of the stopper feeder 122, and the equipment is started. The base of the stopper feeder 122 generates high-frequency vibration, causing the stoppers in the tray to rise along a spiral track. During the ascent, the stoppers with incorrect orientation are removed by a screening mechanism on the track. Finally, all stoppers are output from the tray outlet in a uniform first preset direction and enter the assembly station of the stopper channel 1234.

[0095] This enables fully automated feeding and directional conveying of SMA stoppers 1201, replacing manual operations for orientation and feeding, thereby improving feeding efficiency to meet the demands of high-speed production. Furthermore, the mechanical structure ensures that the stoppers are always conveyed to the assembly station in the correct orientation, thus avoiding assembly defects caused by incorrect stopper orientation and reducing scrap rates.

[0096] Please see Figure 3 In some embodiments, the rubber stopper conveying assembly 123 includes a fixing bolt 1231, a first vibrator fixing plate 1232, a first vibrator 1233, a rubber stopper channel 1234, a first channel cover plate 1235, an SMA rubber stopper deflection limiting plate 1236, a material guide 1237, an SMA rubber stopper conveying pipe 1238, a first sensor fixing block 1239, and a rubber stopper material sensor 1240; The first vibrator fixing plate 1232 is fixed to the first mechanism fixing frame 121 by fixing bolts 1231; The bottom of the first vibrator 1233 is fixed on the first vibrator fixing plate 1232, the rubber plug channel 1234 is fixed on the top of the first vibrator 1233, and the first channel cover plate 1235 is fixed above the rubber plug channel 1234. The SMA stopper reversing limit plate 1236 is fixed on the stopper material channel 1234 and is configured to assist the SMA stopper 1201 in changing from the horizontal direction to the vertical direction. The material guide 1237 is fixed on the stopper material channel 1234 and connected to the SMA stopper conveying pipe 1238. The rubber stopper material sensor 1240 is mounted on the SMA assembly module 14 via the first sensor fixing block 1239 and is configured to detect the material status in the SMA rubber stopper delivery tube 1238.

[0097] Specifically, the fixing bolt 1231 can fix the straight vibrator fixing plate to the base plate of the mechanism fixing frame 1132. At the same time, by adjusting the screwing depth of the bolt, the height and level of the straight vibrator fixing plate can be finely adjusted so that the rubber plug channel 1234 can be effectively connected with the outlet of the rubber plug feeder 122.

[0098] The first vertical vibrator mounting plate 1232 can be a rectangular metal plate, typically made of high-strength steel that has undergone electroplating treatment, and is used to install and fix the vertical vibrator. The surface of the first vertical vibrator mounting plate 1232 is precision machined to have good flatness, ensuring that the vertical vibrator can operate smoothly.

[0099] The full name of the first vibrator 1233 is a linear vibrating feeder, a device that uses the principle of electromagnetic vibration to generate linear reciprocating motion. The first vibrator 1233 typically consists of an electromagnet, an armature, a spring plate, and a housing. When the electromagnet is energized, it generates an alternating magnetic field, attracting the armature to drive the feed channel in high-frequency, small-amplitude linear vibration, causing the rubber plugs inside the channel to move forward at a uniform speed along the channel direction. It should be noted that the vibration frequency and amplitude of the first vibrator 1233 can be independently adjusted by a controller to control the feed speed of the rubber plugs.

[0100] The stopper feed channel 1234 refers to a long, narrow metal track, typically made of aluminum alloy or stainless steel. The cross-sectional shape of the stopper feed channel 1234 matches the shape of the SMA stopper 1201. In some embodiments, the inlet section of the stopper feed channel 1234 may be horizontal, connecting to the outlet of the stopper feeder 122. The middle section of the stopper feed channel 1234 has a gradually changing direction structure. Utilizing the difference in size between the head and tail of the stopper, when the stopper advances to the changing section, the smaller diameter cylindrical section falls first into the groove below the feed channel, while the larger diameter flange is held at the upper edge of the feed channel. Under the combined action of gravity and vibration, the stopper gradually rotates 90 degrees from a horizontal state to a vertical state. The outlet section of the stopper feed channel 1234 has a vertical structure and connects to the material guide 1237.

[0101] In some embodiments, the rubber stopper channel 1234 can be designed as a modular structure that can be independently extracted. It slides into the top surface of the first vibrator 1233 via a dovetail groove and is quickly fixed and positioned using two hand-tightening screws and a cylindrical locating pin. The cylindrical locating pin is installed in a locating hole on the top surface of the first vibrator 1233, and a corresponding locating pin hole is provided at the bottom of the rubber stopper channel 1234. When the rubber stopper channel 1234 is pushed into place along the dovetail groove, the locating pin automatically inserts into the pin hole, achieving radial and axial positioning. The hand-tightening screws are installed at both ends of the rubber stopper channel 1234 and can be manually tightened or loosened without any tools. When it is necessary to replace the rubber stopper 1201 with a different specification, simply loosen the two hand-tightening screws, pull out the old rubber stopper channel 1234 along the dovetail groove, insert the new specification rubber stopper channel 1234, and tighten the hand-tightening screws to complete the replacement.

[0102] The first feed channel cover plate 1235 can be a long strip of metal plate, which can be fixed above the rubber stopper feed channel 1234 by bolts, covering the entire length of the feed channel. The first feed channel cover plate 1235 can prevent the rubber stopper from jumping out of the feed channel under the vibration of the direct vibrator, and at the same time limit the vertical movement of the rubber stopper, ensuring that the rubber stopper moves smoothly in the feed channel. It should be noted that an appropriate gap is usually left between the first feed channel cover plate 1235 and the feed channel, which will not hinder the movement of the rubber stopper, but will also effectively prevent material from overflowing.

[0103] The SMA stopper reversing and limiting plate 1236 can be a small metal plate, which can be fixed to the side of the reversing section of the stopper channel 1234 by bolts. The function of the SMA stopper reversing and limiting plate 1236 is to assist the stopper in completing the reversing process from horizontal to vertical, and to prevent the stopper from getting stuck or overturning during the reversing process. The shape and position of the reversing and limiting plate are precisely designed to guide the stopper to flip smoothly along a predetermined trajectory.

[0104] The material guide 1237 can be a conical or horn-shaped metal component, fixed to the outlet end of the rubber stopper channel 1234. Its large end is connected to the rubber stopper channel 1234, and its small end is connected to the SMA rubber stopper conveying pipe 1238. The function of the material guide 1237 is to smoothly guide the vertically positioned rubber stopper, which has undergone directional change, into the conveying pipe, preventing the rubber stopper from getting stuck or deviating in direction when entering the conveying pipe.

[0105] The SMA stopper delivery tube 1238 can be a circular hollow plastic or metal tube, with an inner diameter typically slightly larger than the diameter of the SMA stopper 1201 flange, such as 0.1-0.2 mm larger. In some embodiments, the upper end of the SMA stopper delivery tube 1238 is connected to the material guide 1237, and the lower end extends to the stopper feeding guide block 1414 of the SMA assembly module 14. The stopper falls freely along the delivery tube under gravity to the assembly station. It should be noted that the length of the SMA stopper delivery tube 1238 can be designed according to the equipment layout to ensure that the stopper can smoothly reach the designated position.

[0106] The first sensor mounting block 1239 can be an L-shaped metal bracket, typically bolted to the stamping cylinder mounting plate 1424 of the SMA assembly module 14, for mounting the rubber stopper material sensor 1240. In some embodiments, the mounting position of the first sensor mounting block 1239 usually needs to be adjusted to ensure that the sensor can accurately detect the rubber stopper in the delivery pipe.

[0107] The rubber stopper material sensor 1240 typically employs a photoelectric proximity switch, enabling non-contact detection of rubber stoppers passing through the conveyor pipe. When a rubber stopper passes through the sensor's detection area, the sensor outputs an electrical signal to the equipment's control system. The control system adjusts the operating status of the rubber stopper feeder 122 and the vibrator in real time based on the sensor's signal: when the sensor detects a continuous presence of rubber stoppers in the conveyor pipe, the control system reduces the vibration frequency of the feeder and vibrator, or even temporarily stops them, to prevent material accumulation and jamming. When the sensor detects no rubber stoppers in the conveyor pipe, the control system increases the vibration frequency of the feeder and vibrator, accelerating the feeding speed and ensuring a sufficient material supply to the assembly station.

[0108] In this way, the natural difference in size between the head and tail of the rubber stopper, combined with the mechanical structure of the deflecting and limiting plate, enables automatic switching of the rubber stopper from horizontal to vertical direction without the need for an additional power unit, resulting in a simple and reliable structure. Furthermore, the material channel cover effectively prevents the rubber stopper from being shaken out of the channel during vibratory conveying. In addition, the rubber stopper material sensor 1240 can monitor the material status in the conveying pipe in real time, automatically controlling the start and stop of the feeder and the vertical vibrator to avoid material jamming caused by accumulation, thus ensuring the continuity and stability of the rubber stopper conveying.

[0109] Please see Figure 4 In some embodiments, the SMA sleeve feeding module 13 includes a second mechanism fixing frame 131, a sleeve feeder 132, and a sleeve conveying assembly 133. The second mechanism fixing frame 131 is installed on the device fixing base plate 10; The sleeve feeder 132 is mounted on the second mechanism fixing frame 131 and is configured to output SMA sleeves 1301. The sleeve conveying assembly 133 is configured to convey the SMA sleeve 1301 output from the sleeve feeder 132 to the assembly station of the SMA assembly module 14 in a second preset direction.

[0110] Specifically, the second mechanism fixing frame 131 is the supporting structure for the entire SMA sleeve feeding module 13, and typically consists of four support bolts and a base plate. The support bolts are made of high-strength carbon steel with a galvanized surface, providing excellent load-bearing capacity and corrosion resistance. One end of each support bolt is threaded to the device fixing base plate 10, and the other end is connected to the base plate. The height and level of the base plate can be precisely adjusted by rotating the bolts. The base plate can be made of thick steel plate, capable of stably bearing a certain weight and effectively absorbing the vibrations generated during the operation of the vibratory feeder, preventing vibrations from being transmitted to other modules and affecting equipment accuracy.

[0111] The sleeve feeder 132 is a vibratory automatic feeding device specifically designed for metal SMA sleeves 1301. It typically consists of two parts: a disc and a base. The disc is a circular stainless steel disc with an internal spiral ascending track and a multi-stage screening mechanism. The screening mechanism is designed to accommodate the diameter difference between the flange and threaded end of the SMA sleeve 1301. As the sleeve rises along the spiral track, only sleeves with their flange end facing down and threaded end facing up can pass through the gaps in the track; sleeves facing the wrong direction will fall back to the bottom of the disc under gravity for reordering. The base contains an electromagnetic vibrator and thickened spring plates, generating sufficient excitation force to drive the metal sleeve movement. The vibration frequency and amplitude can be adjusted via a controller to accommodate sleeves of different weights and sizes.

[0112] The sleeve conveying assembly 133 is the conveying unit of the SMA sleeve feeding module 13, which can smoothly convey the vertically positioned sleeves output by the sleeve feeder 132 to the assembly station.

[0113] This enables fully automated feeding and directional conveying of the SMA sleeve 1301, maintaining a synchronized feeding rhythm with the SMA plug feeding module 12. This ensures a stable material supply to the assembly station and prevents downtime due to material shortages. Furthermore, the mechanical structure ensures that the sleeve is always conveyed vertically to the assembly station, avoiding directional errors and tipping problems that may occur with manual feeding. This improves the success rate of SMA assembly, reduces manual intervention, and lowers the labor intensity for workers.

[0114] Please see Figure 4 In some embodiments, the sleeve conveying assembly 133 includes a support plate 1331, a second fixing plate 1332, a straight vibrator fixing bolt 1333, a second straight vibrator fixing plate 1334, a second straight vibrator 1335, a sleeve material channel 1336, a second material channel cover plate 1337, a second sensor fixing block 1338, and a sleeve material sensor 1339. One end of the support plate 1331 is connected to the device fixing base plate 10, and the other end is connected to the second fixing plate 1332. The second straight vibrator fixing plate 1334 is fixed to the second fixing plate 1332 by the straight vibrator fixing bolt 1333. The bottom of the second straight vibrator 1335 is fixed to the second straight vibrator fixing plate 1334. The sleeve material channel 1336 is fixed to the top of the second straight vibrator 1335. The second material channel cover plate 1337 is fixed above the sleeve material channel 1336. The sleeve material sensor 1339 is installed on one side of the sleeve material channel 1336 via the second sensor fixing block 1338 and is configured to detect the material status in the sleeve material channel 1336.

[0115] Specifically, the support plate 1331 can be an L-shaped thick steel plate, with one end fixed to the device fixing base plate 10 by bolts, and the other end connected to the fixing plate to form a cantilever support structure.

[0116] The second fixing plate 1332 can be a rectangular metal plate, which is fixed to the top of the support plate 1331 by bolts and is used to install the vertical vibrator fixing plate. The surface of the second fixing plate 1332 is precision machined and has good flatness to ensure that the vertical vibrator can be installed horizontally.

[0117] There can be four vertical vibrator fixing bolts 1333, typically high-strength hexagonal socket head cap screws, used to fix the vertical vibrator fixing plate to the fixing plate. In some embodiments, by adjusting the screw depth of the four bolts, the tilt angle of the vertical vibrator fixing plate can be finely adjusted, so that the tilt angle of the sleeve material channel 1336 is precisely matched with the outlet angle of the sleeve feeder 132, ensuring smooth material conveying.

[0118] The second vertical vibrator mounting plate 1334 can be made of high-strength steel that has undergone electroplating treatment, and has the characteristics of strong load-bearing capacity, wear resistance and corrosion resistance, for installing and fixing the vertical vibrator. The surface of the second vertical vibrator mounting plate 1334 is electroplated, which has good wear resistance and corrosion resistance.

[0119] The second linear vibrator 1335 can be a high-power linear vibrating feeder, internally equipped with dual electromagnets and thickened spring plates, capable of generating sufficient excitation force to drive the metal sleeve forward at a uniform speed within the material channel. In some embodiments, the vibration frequency and amplitude of the second linear vibrator 1335 can be independently adjusted to match the rhythm of the assembly process.

[0120] The sleeve channel 1336 can be made of high-strength steel that has undergone electroplating treatment. Its cross-sectional shape matches the shape of the SMA sleeve 1301, which can limit the lateral displacement of the sleeve and ensure that the sleeve always maintains a vertical posture when moving forward. In some embodiments, the inner wall of the sleeve channel 1336 needs to be polished to reduce the friction between the metal sleeve and the channel.

[0121] In some embodiments, the sleeve channel 1336 can also be designed as a modular structure that can be independently pulled out. Its quick-change method is the same as that of the rubber stopper channel 1234. It slides with the top surface of the second linear vibrator 1335 through a dovetail groove, and achieves quick fixing and positioning through two hand-tightening screws and a cylindrical positioning pin.

[0122] The second material channel cover 1337 can be a long, transparent acrylic plate, fixed to the top of the sleeve material channel 1336 with bolts, covering the entire length of the material channel. This prevents the sleeve from jumping out of the material channel under the vibration of the vibrator, and also allows operators to easily observe the material status inside the material channel, enabling timely detection and handling of abnormalities. In some embodiments, a certain gap is left between the second material channel cover 1337 and the sleeve material channel 1336, which neither hinders the movement of the sleeve nor prevents material overflow.

[0123] The second sensor mounting block 1338 can be an L-shaped aluminum alloy bracket, which is fixed to the side of the sleeve material channel 1336 by bolts, and is used to install the sleeve material sensor 1339. It should be noted that the installation position of the second sensor mounting block 1338 can be adjusted along the length of the material channel to adapt to different detection requirements.

[0124] The sleeve material sensor 1339 refers to a diffuse reflection photoelectric sensor that can detect the presence of sleeves in the material channel non-contactly. It should be noted that the detection distance of the sleeve material sensor 1339 is adjustable to reduce response time and ensure rapid and accurate capture of material signals. When the sleeve material sensor 1339 detects a continuous presence of sleeves in the material channel, it sends a signal to the control system. The control system then reduces the vibration frequency of the sleeve feeder 132 and the vibrator, or even temporarily stops their operation to prevent material accumulation and jamming. When the sensor detects no sleeves in the material channel, the control system increases the vibration frequency and accelerates the feeding speed to ensure a sufficient material supply to the assembly station.

[0125] In this way, the material channel cover can effectively prevent the sleeve from jumping out of the material channel during vibration, ensuring the safety and continuity of the conveying process. In addition, the sleeve material sensor 1339 can detect the material level in the material channel in real time. When the material in the material channel is insufficient, the feeder will be automatically started to replenish the material, and when the material is sufficient, the feeding will be stopped, thereby avoiding material accumulation and problems such as jamming and interruption of feeding.

[0126] Please see Figure 5 In some embodiments, the SMA assembly module 14 includes an assembly conveying mechanism 141 and an assembly stamping mechanism 142. The assembly conveyor 141 is configured to convey the SMA plug 1201 and the SMA sleeve 1301 to the stamping station; The assembly stamping mechanism 142 is configured to stamp the SMA plug 1201 into the SMA sleeve 1301 to form the SMA assembly 1401, and to convey the SMA assembly 1401 to the threading station of the SMA assembly threading module 15.

[0127] Specifically, the SMA assembly module 14 is the core processing module of the entire SMA assembly and threading device 1. It includes an assembly conveying mechanism 141 and an assembly stamping mechanism 142. It can receive parts from the SMA plug feeding module 12 and the SMA sleeve feeding module 13, complete pre-assembly, stamping, inspection and unloading, form qualified SMA assemblies, and transport them to the SMA assembly threading module 15.

[0128] The assembly conveying mechanism 141 is a material conveying and pre-assembly unit, responsible for conveying the SMA sleeve 1301 and SMA plug 1201 to the designated position and completing the pre-assembly, and then conveying the pre-assembled workpiece to the stamping station. The assembly stamping mechanism 142 is a stamping and blanking unit, responsible for stamping the pre-assembled workpiece, pressing the plug completely into the sleeve to form a solid SMA assembly, and then conveying the finished assembly to the threading module.

[0129] In this way, the automatic assembly and stamping of the SMA rubber stopper 1201 and the sleeve can be integrated, replacing manual pre-assembly and stamping operations, thereby improving the efficiency of assembly and stamping.

[0130] Please see Figure 5 and Figure 6 In some embodiments, the assembly conveying mechanism 141 includes a rubber stopper feeding cylinder 1411, a rubber stopper feeding cylinder fixing plate 1419, a rubber stopper pushing rod 1412, a rubber stopper pushing rod limiting block 1413, a rubber stopper unloading guide block 1414, a two-stage conveying cylinder 1415, a conveying cylinder fixing block 1416, an assembly conveying base 1417, an assembly conveying block 1418, and a conveying block limiting block 1420. The rubber stopper feeding cylinder 1411 is fixed to the assembly conveying base 1417 by the rubber stopper feeding cylinder fixing plate 1419; The rubber stopper push rod 1412 is connected to the output end of the rubber stopper feeding cylinder 1411, and the rubber stopper push rod limiting block 1413 is fixed on the rubber stopper feeding cylinder fixing plate 1419 and is located on both sides of the rubber stopper push rod 1412. The rubber stopper feeding guide block 1414 is fixed on the conveying cylinder fixing block 1416 and is configured to connect to the SMA rubber stopper conveying pipe 1238 and guide the SMA rubber stopper 1201. The two-stage conveying cylinder 1415 is fixed to the assembly conveying base 1417 by the conveying cylinder fixing block 1416; The assembly conveying block 1418 is connected to the output end of the two-stage conveying cylinder 1415 and is slidably disposed within the assembly conveying base 1417. The conveyor block limiter 1420 is fixed to one end of the assembly conveyor base 1417 and is configured to limit the movement distance of the assembly conveyor block 1418.

[0131] Specifically, the rubber stopper feeding cylinder 1411 can be a pneumatic actuator capable of converting the pressure energy of compressed air into mechanical energy to drive the piston rod in linear reciprocating motion. In some embodiments, the rubber stopper feeding cylinder 1411 is a double-acting cylinder, capable of realizing both the extension and retraction of the piston rod, respectively completing the pushing and resetting of the rubber stopper. It should be noted that the cylinder diameter and stroke can be designed according to the size of the rubber stopper and the conveying distance.

[0132] The rubber stopper feeding cylinder fixing plate 1419 can be a rectangular metal plate, usually made of aluminum alloy, which has sufficient strength and rigidity to firmly fix the rubber stopper feeding cylinder 1411 on the assembly conveying base 1417, ensuring the cylinder's installation position accuracy and operational stability.

[0133] The rubber stopper push rod 1412 can be a long, narrow metal rod, typically made of high-strength steel that has undergone electroplating and has a polished surface, resulting in high dimensional accuracy and surface finish. In some embodiments, the front end of the rubber stopper push rod 1412 has a rubber stopper hole machined inside, matching the shape of the SMA rubber stopper 1201, to receive the rubber stopper coming down from the SMA rubber stopper delivery tube 1238. When the rubber stopper feeding cylinder 1411 drives the push rod forward, the push rod delivers the rubber stopper to directly above the SMA sleeve 1301, using the height difference to cause the rubber stopper to fall into the sleeve, completing the pre-assembly.

[0134] The stopper pusher rod limiting block 1413 can be two small metal blocks, respectively fixed on both sides of the stopper pusher rod 1412. These blocks restrict the lateral swing of the stopper pusher rod 1412, ensuring the pusher rod moves accurately in a straight line and precisely pushes the stopper onto the top of the sleeve. In some embodiments, a certain gap is left between the stopper pusher rod limiting block 1413 and the stopper pusher rod 1412. This ensures that the movement of the pusher rod is not hindered while effectively preventing the pusher rod from wobbling.

[0135] The stopper feeding guide block 1414 can be a metal block with a tapered guide hole, typically made of hard steel. It connects to the SMA stopper delivery pipe 1238 and guides the stoppers coming from the pipe, ensuring they fall accurately into the stopper hole of the stopper pusher rod 1412. In some embodiments, the guide hole of the stopper feeding guide block 1414 is larger at the upper end and smaller at the lower end, effectively correcting minor deviations of the stopper during delivery.

[0136] The two-stage conveying cylinder 1415 is a special cylinder with two independent strokes, capable of precise positioning at three positions. The first stroke conveys the assembly conveyor block 1418 from the assembly station to the stamping station, and the second stroke conveys the assembly conveyor block 1418 from the stamping station to the unloading station. In some embodiments, the two-stage conveying cylinder 1415 employs a dual-piston structure, with each piston controlled by an independent air circuit, enabling independent operation of the two strokes.

[0137] The conveying cylinder fixing block 1416 can be an L-shaped metal plate, usually made of steel plate, with sufficient strength and rigidity to firmly fix the two-section conveying cylinder 1415 on the assembly conveying base 1417 and withstand the reaction force generated when the cylinder is working.

[0138] The assembly conveyor base 1417 can be a long strip of metal base, usually made of aluminum alloy, with a precision-machined surface that has good flatness and straightness. It can provide a precise sliding track for the assembly conveyor block 1418, ensuring that the conveyor block can move smoothly along a straight line.

[0139] The assembly conveyor block 1418 can be a rectangular metal block, typically made of stainless steel, with a hardened surface that provides high hardness and wear resistance. In some embodiments, the upper surface of the assembly conveyor block 1418 is machined with an assembly groove that matches the shape of the SMA sleeve 1301, for supporting the SMA sleeve 1301 and the pre-assembled workpiece. The bottom of the assembly conveyor block 1418 is connected to the piston rod of the two-stage conveyor cylinder 1415, allowing it to slide along the assembly conveyor base 1417 under the cylinder's drive.

[0140] In some embodiments, both the rubber stopper pusher 1412 and the assembly conveying block 1418 can employ a spring-loaded quick-change connector design. The rear end of the rubber stopper pusher 1412 has an annular groove, and the front end of the piston rod of the rubber stopper feeding cylinder 1411 has a corresponding spring-loaded snap-fit. During installation, simply insert the rubber stopper pusher 1412 into the mounting hole at the front end of the piston rod, and the spring-loaded snap-fit ​​will automatically engage with the annular groove to complete the fixation. During disassembly, simply press the release button on the snap-fit ​​to pull out the rubber stopper pusher 1412. The quick-change structure of the assembly conveying block 1418 is the same as that of the rubber stopper pusher 1412, and it is quickly connected to the piston rod of the two-stage conveying cylinder 1415 via a spring-loaded snap-fit.

[0141] The conveyor block limiter 1420 can be a metal stop with a buffer pad, fixed to one end of the assembly conveyor base 1417. It can limit the maximum movement distance of the assembly conveyor block 1418, prevent the conveyor block from exceeding the stroke range, and at the same time play a buffering role, reducing the impact and noise generated when the cylinder is activated.

[0142] Further, the workflow of the assembly conveying mechanism 141 can be as follows: The SMA sleeve feeding module 13 conveys the SMA sleeve 1301 into the assembly slot of the assembly conveying block 1418. Simultaneously, the SMA plug feeding module 12 conveys the SMA plug 1201 through the conveying pipe to the plug unloading guide block 1414. Under gravity, the plug falls into the plug hole of the plug pusher rod 1412. Subsequently, the plug feeding cylinder 1411 drives the plug pusher rod 1412 forward, pushing the plug directly above the SMA sleeve 1301. Under gravity, the plug falls from the plug hole of the pusher rod into the SMA sleeve 1301, completing the pre-assembly. Next, the plug feeding cylinder 1411 drives the pusher rod to reset. At this time, the two-stage conveying cylinder 1415 drives the assembly conveying block 1418 to perform the first stage of movement, conveying the pre-assembled workpiece to the stamping station. After stamping, the two-stage conveying cylinder 1415 drives the assembly conveying block 1418 to perform a second stage of movement, conveying the stamped SMA assembly to the unloading station. Subsequently, after unloading, the two-stage conveying cylinder 1415 drives the assembly conveying block 1418 to reset and return to the assembly station to begin the next work cycle.

[0143] In this way, the rubber stopper pusher 1412 can accurately push the rubber stopper above the sleeve, and the height difference enables automatic pre-assembly of the rubber stopper and the sleeve without the need for an additional assembly mechanism. Furthermore, the two-stage conveying cylinder 1415 can complete two independent conveying stages—from the pre-assembled part to the stamping station and from the finished product to the unloading station—with a single installation, thereby simplifying the mechanism design, reducing equipment costs, and avoiding the asynchronous problems that may occur when multiple cylinders are used in tandem.

[0144] Please see Figure 5 and Figure 6 In some embodiments, the assembly stamping mechanism 142 includes a mechanism fixing column 1421, a mounting base plate 1422, a stamping cylinder fixing column 1423, a stamping cylinder fixing plate 1424, a stamping cylinder 1425, a stamping head 1426, a stamping head guard plate 1427, an air blowing auxiliary component 1428, a riveting detection sensor 1429, a riveting detection sensor fixing plate 1430, an assembly unloading auxiliary block 1431, an SMA assembly conveying pipe 1432, an assembly detection sensor 1433, and an assembly detection sensor fixing plate 1434. The mechanism fixing column 1421 is installed on the device fixing base plate 10, the mounting base plate 1422 is fixed on the mechanism fixing column 1421, the stamping cylinder fixing plate 1424 is fixed on the mounting base plate 1422 through the stamping cylinder fixing column 1423, and the stamping cylinder 1425 is fixed on the stamping cylinder fixing plate 1424. The stamping head 1426 is connected to the output end of the stamping cylinder 1425, and the stamping head guard plate 1427 is installed on the side of the stamping head 1426. The air blowing auxiliary component 1428 is installed on one side of the stamping cylinder fixing column 1423 and is configured to blow the stamped SMA assembly 1401 into the SMA assembly delivery pipe 1432. The riveting detection sensor 1429 is fixed to the side of the mechanism fixing column 1421 by the riveting detection sensor fixing piece 1430, and is configured to detect the pre-assembly state of the SMA rubber plug 1201 and the SMA sleeve 1301. The assembly unloading auxiliary block 1431 is fixed on the mounting base plate 1422 and connected to the SMA assembly conveying pipe 1432; The assembly detection sensor 1433 is fixed to the mounting base plate 1422 by the assembly detection sensor fixing piece 1434 and is configured to detect the material status in the SMA assembly conveying pipe 1432.

[0145] Specifically, the mechanism fixing columns 1421 can be four cylindrical metal columns, typically made of carbon steel with a galvanized surface, possessing high strength and rigidity. The lower end of the mechanism fixing columns 1421 is fixed to the device fixing base plate 10 by bolts, and the upper end is connected to the mounting base plate 1422, providing stable support for the entire assembly stamping mechanism 142.

[0146] The mounting base plate 1422 can be a rectangular thick steel plate with sufficient strength and rigidity to withstand the huge impact force generated when the stamping cylinder 1425 is working, and can install and support components such as the stamping cylinder 1425, the stamping head 1426, the detection sensor and the material feeding auxiliary parts.

[0147] The stamping cylinder fixing column 1423 can be four cylindrical metal columns, usually made of carbon steel. The lower end of the stamping cylinder fixing column 1423 is fixed to the mounting base plate 1422, and the upper end is connected to the stamping cylinder fixing plate 1424. It is used to support the stamping cylinder 1425 and provide sufficient stamping stroke for the stamping head 1426.

[0148] The stamping cylinder mounting plate 1424 can be a rectangular thick steel plate used for mounting and fixing the stamping cylinder 1425. The flatness and perpendicularity of the stamping cylinder mounting plate 1424 are strictly controlled to ensure that the piston rod of the stamping cylinder 1425 can move vertically downward, thus ensuring stamping accuracy.

[0149] The stamping cylinder 1425 can be a high-thrust pneumatic actuator that can generate sufficient pressure to press the SMA plug 1201 into the SMA sleeve 1301.

[0150] The stamping head 1426 can be a cylindrical metal punch, typically made of high-speed steel with a hardened surface, exhibiting high hardness and wear resistance. In some embodiments, the lower end face of the stamping head 1426 is precision-machined to reduce flatness errors, thereby ensuring uniform force on the rubber stopper during stamping and preventing deformation and damage. The diameter of the stamping head 1426 is slightly smaller than the inner diameter of the SMA sleeve 1301, allowing it to smoothly enter the sleeve and press the rubber stopper into the specified depth.

[0151] The stamping head guard plate 1427 can be an L-shaped metal plate installed on the side of the stamping head 1426. It can limit the lateral swing of the stamping head 1426, ensure that the stamping head 1426 can move accurately in the vertical direction, and prevent the stamping head 1426 from falling off and injuring people during operation.

[0152] The air-blowing auxiliary component 1428 can be a small pneumatic nozzle connected to a compressed air source via an air pipe. After stamping, it can spray a stream of compressed air to blow the SMA assembly from the assembly conveyor block 1418 into the SMA assembly conveyor pipe, preventing the assembly from getting stuck in the conveyor block and being unable to be discharged. It should be noted that the blowing time and pressure of the air-blowing auxiliary component 1428 can be adjusted by a solenoid valve and a pressure regulating valve to achieve the best discharge effect.

[0153] The riveting detection sensor 1429 typically employs a laser displacement sensor or a photoelectric sensor to non-contactly detect the presence of SMA plugs 1201 in the pre-assembled workpiece and the correctness of their pre-assembly position. When the assembly conveyor block 1418 transports the pre-assembled workpiece to the stamping station, the riveting detection sensor 1429 detects the workpiece. If the SMA plug 1201 is detected, the control system issues a stamping command, and the stamping cylinder 1425 actuates. If the SMA plug 1201 is not detected or it is determined that the SMA plug 1201 cannot be correctly pre-installed into the sleeve (e.g., the plug is tilted, stuck, or not fully inserted into the sleeve), the control system does not issue a stamping command. The two-stage conveyor cylinder 1415 drives the assembly conveyor block 1418 to reset and reassemble, avoiding dry stamping, damage to the plug, or damage to the mold.

[0154] The riveting detection sensor mounting plate 1430 can be an L-shaped metal bracket used to fix the riveting detection sensor 1429 to the side of the mechanism fixing column 1421. It should be noted that the installation position of the riveting detection sensor mounting plate 1430 can be adjusted vertically and horizontally to ensure that the sensor can accurately detect the rubber plug in the workpiece.

[0155] The assembly unloading auxiliary block 1431 can be a metal block with a tapered guide hole, fixed on the mounting base plate 1422. Its upper end is aligned with the unloading position of the assembly conveying block 1418, and its lower end is connected to the SMA assembly conveying pipe. The function of the assembly unloading auxiliary block 1431 is to guide the SMA assembly blown out from the assembly conveying block 1418, ensuring that the assembly can smoothly enter the conveying pipe. If the riveting detection sensor 1429 does not detect the rubber plug or determines that the rubber plug cannot be correctly pre-installed into the sleeve, then the stamping cylinder 1425 does not operate, and the two-stage conveying cylinder 1415 will drive the assembly conveying block 1418 to reset and reassemble.

[0156] The SMA assembly conveying tube can be a circular, hollow, transparent plastic tube with an inner diameter slightly larger than the outer diameter of the SMA assembly. The upper end of the assembly unloading auxiliary block 1431 is aligned with the unloading position of the assembly conveying block 1418, and the lower end extends to the material transfer mechanism 151 of the SMA assembly threading module 15. Under the combined action of gravity and compressed air, the SMA assembly falls freely along the conveying tube to the threading station.

[0157] The assembly detection sensor 1433 typically employs a photoelectric proximity switch, enabling non-contact detection of whether an assembly is passing through the SMA assembly conveyor tube. In some embodiments, when the assembly detection sensor 1433 detects an assembly passing through the conveyor tube, it sends a signal to the control system, which then adjusts the working cycle of the assembly module based on the signal. It should be noted that if the sensor fails to detect an assembly passing through within a certain timeframe, the control system will issue an alarm signal, indicating a equipment malfunction.

[0158] The assembly detection sensor mounting plate 1434 can be an L-shaped metal bracket used to fix the assembly detection sensor 1433 to the mounting base plate 1422. It should be noted that the installation position of the assembly detection sensor mounting plate 1434 needs to be adjusted to ensure that the sensor can accurately detect the assembly in the delivery pipe.

[0159] The working process of the assembly stamping mechanism 142 is as follows: When the two-stage conveying cylinder 1415 conveys the pre-assembled workpiece to the stamping station, the riveting detection sensor 1429 detects the workpiece. If a rubber plug is detected, the stamping cylinder 1425 drives the stamping head 1426 to move downwards, completely pressing the SMA rubber plug 1201 into the SMA sleeve 1301 to form an SMA assembly. After stamping, the stamping cylinder 1425 drives the stamping head 1426 to reset. The two-stage conveying cylinder 1415 drives the assembly conveying block 1418 to perform a second stage of movement, conveying the SMA assembly to the unloading station. The air blowing auxiliary component 1428 sprays compressed air to blow the SMA assembly into the assembly unloading auxiliary block 1431, and then into the SMA assembly conveying pipe. After the assembly detection sensor 1433 detects that the assembly has passed, it sends a signal to the control system. The two-stage conveying cylinder 1415 drives the assembly conveying block 1418 to reset and return to the assembly station. If the riveting detection sensor 1429 does not detect the presence of the rubber plug or the pre-assembly state does not meet the requirements, the stamping cylinder 1425 does not operate, and the two-stage conveying cylinder 1415 directly drives the assembly conveying block 1418 to reset and reassemble.

[0160] Thus, the riveting detection sensor 1429 can detect in real time whether the rubber plug is correctly installed in the sleeve before stamping. If the rubber plug is not detected, the stamping will be automatically stopped and the assembly will be reset, thereby avoiding the generation of defective products with missing rubber plugs. The air blowing auxiliary component 1428 can use compressed air to quickly blow the stamped SMA assembly into the conveying pipe, thereby avoiding the problem of finished products getting stuck at the workstation and ensuring smooth material feeding.

[0161] Please see Figure 7 In some embodiments, the SMA assembly threading module 15 includes a material transfer mechanism 151, a threading mechanism 153, and a coaxial wire pressing mechanism 154. The transfer mechanism 151 is configured to transport the SMA assembly 1401 to the threading station; The threading mechanism 153 is configured to thread the SMA assembly 1401 into the coaxial cable 1101 to form an SMA product. The coaxial cable clamping mechanism 154 is configured to fix the coaxial cable 1101 during the threading process.

[0162] Specifically, the SMA assembly wiring module 15 is the core execution module of the entire SMA assembly wiring device 1. It includes a material transfer mechanism 151, a wiring mechanism 153, and a coaxial cable crimping mechanism 154. It can receive semi-finished assemblies from the SMA assembly module 14 and accurately connect them with the pre-positioned coaxial cable 1101 to form a complete SMA RF connector product.

[0163] The material handling mechanism 151 is responsible for separating the continuously conveyed SMA assemblies one by one and accurately conveying them to the threading position. The coaxial cable clamping mechanism 154 is a workpiece fixing unit, responsible for firmly fixing the coaxial cable 1101 during the threading process to prevent it from shifting. The threading mechanism 153 is an execution unit, responsible for clamping the SMA assemblies and accurately threading them into the coaxial cable 1101.

[0164] This enables fully automated threading of the SMA assembly and coaxial cable 1101, replacing tedious manual threading and improving threading efficiency to meet the needs of mass production. The coaxial cable pressing mechanism 154 firmly presses the coaxial cable 1101 before threading, effectively preventing the coaxial cable 1101 from slipping back during threading and ensuring consistent threading depth. The coordinated work of the material transfer mechanism 151 and the threading mechanism 153 ensures that the SMA assembly can be accurately and quickly threaded into the coaxial cable 1101, thereby improving the success rate of threading and product quality.

[0165] Please see Figure 7 In some embodiments, the material transfer mechanism 151 includes a mechanism mounting plate 1511, an SMA assembly guide block 1512, a material transfer cylinder 1513, a material transfer cylinder fixing block 1514, a material transfer block 1515, a material transfer base 1516, a feeding cylinder 1517, a feeding cylinder fixing block 1518, a material transfer block limiting member 1519, a buffer 1520, an assembly material detection sensor 1521, and a sensor fixing plate 1522. The mechanism mounting plate 1511 is fixed between the mechanism fixing columns 1421 of the SMA assembly module 14; The SMA assembly guide block 1512, the material transfer cylinder fixing block 1514, the material transfer base 1516, the feeding cylinder fixing block 1518, and the material transfer block limiting member 1519 are sequentially fixed on the mechanism mounting plate 1511. The material transfer cylinder 1513 is fixed based on the material transfer cylinder fixing block 1514, the feeding cylinder 1517 is fixed based on the feeding cylinder fixing block 1518, and the material transfer block 1515 is connected to the output end of the material transfer cylinder 1513 and is slidably disposed on the material transfer base 1516. The buffer 1520 is fixed to the transfer block limiter 1519 to limit the movement distance of the transfer block 1515 and provide cushioning; The assembly material detection sensor 1521 is mounted on the coaxial line pressing mechanism 154 via the sensor fixing plate 1522 and is configured to detect the material status of the SMA assembly 1401 within the material transfer block 1515.

[0166] Specifically, the mechanism mounting plate 1511 can be a rectangular metal plate, typically made of electroplated steel, possessing sufficient strength and rigidity. It should be noted that the mechanism mounting plate 1511 is fixed between the two mechanism fixing columns 1421 of the SMA assembly module 14, rather than directly fixed to the device fixing base plate 10. This not only saves equipment floor space and makes the overall structure more compact, but also shortens the conveying distance of the SMA assembly from the assembly module to the wiring module.

[0167] The SMA assembly guide block can be a metal block with a tapered guide hole, typically made of aluminum alloy. The upper end of the SMA assembly guide block connects to the lower end of the SMA assembly conveying pipe, and the lower end aligns with the storage trough of the transfer block 1515. The guide hole is larger at the upper end and smaller at the lower end, guiding the SMA assembly falling from the conveying pipe to ensure that the assembly accurately falls into the storage trough of the transfer block 1515, preventing jamming due to misalignment.

[0168] The transfer cylinder 1513 can be a pneumatic actuator. It can adopt a double-acting cylinder design to realize the extension and retraction of the piston rod, thereby driving the transfer block 1515 to perform linear reciprocating motion on the transfer base 1516, and transporting the SMA assembly from the receiving position to the threading position.

[0169] The transfer cylinder fixing block 1514 can be an L-shaped metal bracket, which is fixed to the mechanism mounting plate 1511 by bolts, and is used to install and fix the transfer cylinder 1513. The installation position of the transfer cylinder fixing block 1514 needs to be adjusted to ensure that the piston rod of the transfer cylinder 1513 is parallel to the guide rail 1112 of the transfer base 1516, and to ensure the straightness of the movement of the transfer block 1515.

[0170] The transfer block 1515 can be a rectangular metal block, typically made of stainless steel, with a hardened surface that provides high hardness and wear resistance. In some embodiments, the upper surface of the transfer block 1515 is machined with a storage groove that precisely matches the shape of the SMA assembly, the depth of which is slightly less than the height of the SMA assembly. Thus, when the SMA assembly 1401 falls into the storage groove, its upper end protrudes from the upper surface of the transfer block 1515, facilitating its ejection by the feeding cylinder 1517. The bottom of the transfer block 1515 is connected to the piston rod of the transfer cylinder 1513, allowing it to slide along the transfer base 1516 under the cylinder's drive.

[0171] The transfer base 1516 can be a long, narrow metal base, typically made of aluminum alloy, with a precision-machined surface exhibiting excellent flatness and straightness. This provides a precise sliding track for the transfer block 1515, ensuring its smooth, linear movement. Guide grooves are provided on both sides of the transfer base 1516, engaging with guide protrusions on the bottom of the transfer block 1515 to further improve the accuracy of its movement.

[0172] The feeding cylinder 1517 can be a double-acting pneumatic actuator capable of pushing the SMA assembly out of the storage tank of the transfer block 1515 and feeding it into the SMA assembly clamp of the threading mechanism 153. In some embodiments, the piston rod of the feeding cylinder 1517 is designed with a flat front end to make close contact with the end face of the SMA assembly, ensuring that the assembly does not tilt or rotate during the pushing process.

[0173] The feeding cylinder fixing block 1518 can be an L-shaped metal bracket, which is fixed to the mechanism mounting plate 1511 by bolts, and is used to install and fix the feeding cylinder 1517. The installation position of the feeding cylinder fixing block 1518 needs to be adjusted to ensure that the piston rod of the feeding cylinder 1517 and the center line of the material storage groove of the transfer block 1515 are on the same straight line, so as to ensure that the assembly can be accurately pushed into the clamp.

[0174] The material transfer block limiting member 1519 can be an L-shaped metal block, fixed to one end of the mechanism mounting plate 1511, located in front of the moving direction of the material transfer block 1515, which can limit the maximum moving distance of the material transfer block 1515 and prevent the material transfer block 1515 from exceeding the stroke range.

[0175] The buffer 1520 can be a hydraulic buffer 1520 or a polyurethane buffer 1520, fixed on the transfer block limiter 1519, and in the same direction of movement as the transfer block 1515. It can absorb the kinetic energy of the transfer block 1515 when the transfer block 1515 reaches the end of its stroke, play a buffering role, reduce impact and noise, and at the same time avoid damage or displacement of the SMA assembly due to rigid collision.

[0176] The assembly material detection sensor 1521 can typically be a diffuse reflection photoelectric sensor, capable of non-contactly detecting the presence of SMA assemblies in the storage tank of the transfer block 1515. In some embodiments, when the sensor detects an assembly in the storage tank, it sends a signal to the control system, which then triggers subsequent material transfer and threading actions. If the sensor does not detect an assembly, the control system issues an alarm signal, indicating an equipment malfunction. It should be noted that the detection distance of the assembly material detection sensor 1521 is adjustable to reduce response time, thereby enabling rapid and accurate capture of material signals.

[0177] The sensor mounting plate 1522 can be an L-shaped metal bracket, which is bolted to the wire pressing mechanism support plate 1542 of the coaxial wire pressing mechanism 154 for mounting the assembly material detection sensor 1521. In some embodiments, the mounting position of the sensor mounting plate 1522 can be adjusted vertically and horizontally to ensure that the sensor can accurately detect the assembly in the material storage tank of the transfer block 1515.

[0178] The working process of the transfer mechanism 151 is as follows: The SMA assembly falls from the SMA assembly conveying pipe, is guided by the SMA assembly guide block, and accurately falls into the storage tank of the transfer block 1515. Subsequently, the assembly material detection sensor 1521 detects that there is an assembly in the storage tank and sends a signal to the control system. Then, after receiving the signal, the control system issues a transfer command, the piston rod of the transfer cylinder 1513 extends, and drives the transfer block 1515 to move along the transfer base 1516 towards the threading position. When the transfer block 1515 moves to the end of its stroke, the buffer 1520 absorbs the impact energy, and the transfer block 1515 stops moving. At this time, the center line of the storage tank is on the same straight line as the piston rod of the feeding cylinder 1517 and the center line of the SMA assembly clamp. Then, the control system issues a feeding command, the piston rod of the feeding cylinder 1517 extends, pushes the SMA assembly in the storage tank out, and sends it into the SMA assembly clamp. Finally, after feeding is completed, the piston rod of the feeding cylinder 1517 retracts, the piston rod of the transfer cylinder 1513 retracts, driving the transfer block 1515 to reset and return to the receiving position, waiting for the arrival of the next assembly.

[0179] In this way, the transfer block 1515 can separate the SMA assembly from the continuous conveying state through the storage trough. The assembly material detection sensor 1521 can accurately detect whether there is an assembly inside the transfer block 1515, ensuring that the transfer action and subsequent threading action are only initiated after the material is detected in place. This prevents the threading mechanism 153 from running idle, thereby improving production efficiency. Furthermore, the buffer 1520 can absorb the impact force of the transfer block 1515's movement, reducing mechanism vibration and noise, extending equipment lifespan, and ensuring the accuracy of the transfer position.

[0180] Please see Figure 7 In some embodiments, the threading mechanism 153 includes a threading cylinder 1531, a threading cylinder support plate 1532, an SMA assembly clamp 1533, a clamp cylinder 1534, and a clamp cylinder fixing plate 1535. The threading cylinder support plate 1532 is connected to the device fixing base plate 10, and the threading cylinder 1531 is fixed on the threading cylinder support plate 1532. The clamp cylinder fixing plate 1535 is connected to the movable side of the threading cylinder 1531, and the clamp cylinder 1534 is fixed on the clamp cylinder fixing plate 1535. SMA assembly clamp 1533 is connected to clamp cylinder 1534; The front end of the SMA assembly clip 1533 is provided with a flared chamfer and is configured to guide the coaxial cable 1101 through the SMA assembly 1401.

[0181] Specifically, the threading cylinder support plate 1532 can be an L-shaped thick metal plate, typically made of steel, possessing sufficient strength and rigidity. In some embodiments, the lower end of the threading cylinder support plate 1532 is bolted to the device mounting base plate 10, while the upper end is used to mount the threading cylinder 1531. It should be noted that the height of the threading cylinder support plate 1532 needs to be adjusted to ensure that the centerline of the threading cylinder 1531 is on the same horizontal plane as the centerline of the coaxial line 1101, thus ensuring the coaxiality of the threading.

[0182] The threading cylinder 1531 can be a high-precision pneumatic actuator, employing a double-acting cylinder design. It can drive the clamp cylinder 1534 and the SMA assembly clamp to move along the coaxial axis 1101 to complete the threading action. In some embodiments, the piston rod of the threading cylinder 1531 can be a precision-machined guide rod, coupled with a linear bearing, to ensure extremely high linearity of movement.

[0183] The clamp cylinder fixing plate 1535 can be a rectangular metal plate, typically made of electroplated steel. In some embodiments, one side of the clamp cylinder fixing plate 1535 is connected to the front end of the piston rod of the threading cylinder 1531, and the other side is used to mount the clamp cylinder 1534. It should be noted that the flatness and perpendicularity of the clamp cylinder fixing plate 1535 need to be adjusted to ensure that the center line of the clamp cylinder 1534 is on the same straight line as the center line of the threading cylinder 1531.

[0184] The clamp cylinder 1534 can be a pneumatic finger cylinder that can realize the synchronous opening and closing action of the two grippers, and can drive the SMA assembly clamp 1533 to open and close, thereby realizing the clamping and releasing of the SMA assembly.

[0185] The SMA assembly clip 1533 may consist of two symmetrical jaws, typically made of aluminum alloy or steel with a polished surface. In some embodiments, the clamping surfaces of the jaws are machined with arc-shaped grooves that match the shape of the SMA assembly, enabling a firm grip on the assembly without damaging its surface. Furthermore, the front end of the SMA assembly clip is designed with a special flared chamfer, which automatically guides the end of the coaxial cable 1101 into the clip during threading, aligning it with the central micro-hole of the SMA plug 1201. Even slight misalignment of the coaxial cable 1101 can be corrected by the flared chamfer, thereby improving the threading success rate.

[0186] In some embodiments, both jaws of the SMA assembly clamp 1533 are designed for quick replacement, connected to the gripping fingers of the clamp cylinder 1534 via hex socket set screws. The mounting surface of the jaws has a positioning boss, and the gripping fingers of the clamp cylinder 1534 have corresponding positioning grooves. During installation, the positioning boss automatically engages with the positioning groove, ensuring the accuracy of the jaws' installation position. When it is necessary to replace the SMA assembly clamp 1533 with a different specification, simply loosen the two hex socket set screws, remove the old jaws, install the new jaws, and tighten the screws.

[0187] The working process of the threading mechanism 153 is as follows: After the feeding cylinder 1517 pushes the SMA assembly into the SMA assembly clamp, the control system issues a clamping command, the clamp cylinder 1534 actuates, driving the two grippers to close and firmly clamp the SMA assembly. Subsequently, the piston rod of the feeding cylinder 1517 retracts, the piston rod of the transfer cylinder 1513 retracts, and the transfer block 1515 is reset. After the coaxial cable pressing mechanism 154 clamps and fixes the coaxial cable 1101, the control system issues a threading command, the piston rod of the threading cylinder 1531 extends, driving the clamp cylinder 1534 and the SMA assembly clamp to move towards the coaxial cable 1101. At the same time, during the movement, the end of the coaxial cable 1101 first enters the flared chamfer at the front end of the clamp. Guided by the flared chamfer, the coaxial cable 1101 accurately aligns with the central micro-hole of the SMA plug 1201 and is smoothly threaded through. When the threading cylinder 1531 reaches the end of its stroke, the SMA assembly is threaded into the coaxial line 1101 to the designated depth, completing the threading action. Finally, the control system issues a release command, the clamp cylinder 1534 actuates, driving the two grippers to open and release the SMA assembly; the piston rod of the threading cylinder 1531 retracts, driving the clamp cylinder 1534 and the clamp to reset, waiting for the next threading cycle.

[0188] Thus, the clamp cylinder 1534 provides a stable clamping force, ensuring that the SMA assembly will not fall off or shift during threading. The flared chamfer at the front end of the SMA assembly clamp effectively guides the coaxial cable 1101, allowing it to be easily and accurately inserted into the center hole of the assembly, thereby preventing threading failures and product damage due to misalignment. Furthermore, by driving the clamp cylinder 1534 to move as a whole through the threading cylinder 1531, automatic threading is achieved, with controllable threading speed and depth, ensuring consistent threading quality.

[0189] Please see Figure 7 In some embodiments, the coaxial cable pressing mechanism 154 includes a pressing mechanism fixing base plate 1541, a pressing mechanism support plate 1542, a pressing cylinder mounting plate 1543, a pressing cylinder 1544, a pressing silicone pad 1545, and a silicone pad fixing member 1546. The pressing mechanism fixing base plate 1541 is connected to the device fixing base plate 10. The pressing mechanism support plate 1542 is fixed on the pressing mechanism fixing base plate 1541. The pressing cylinder mounting plate 1543 is fixed on the pressing mechanism support plate 1542. The pressing cylinder 1544 is fixed on the pressing cylinder mounting plate 1543. The pressing silicone pad 1545 is connected to the output end of the pressing cylinder 1544 through the silicone pad fixing piece 1546.

[0190] Specifically, the pressing mechanism fixing base plate 1541 can be a rectangular metal plate, which is fixed to the device fixing base plate 10 by bolts, providing a stable support foundation for the entire coaxial pressing mechanism 154.

[0191] The wire pressing mechanism support plate 1542 can be an L-shaped thick metal plate, usually made of steel plate, with sufficient strength and rigidity. The lower end of the wire pressing mechanism support plate 1542 is fixed to the wire pressing mechanism fixing base plate 1541, and the upper end is used to install the wire pressing cylinder mounting plate 1543 and related components of the vision inspection module 16.

[0192] The wire pressing cylinder mounting plate 1543 can be a rectangular metal plate, which is fixed to the upper end of the wire pressing mechanism support plate 1542 by bolts, and is used to install the wire pressing cylinder 1544. It should be noted that the installation position of the wire pressing cylinder mounting plate 1543 needs to be adjusted to ensure that the piston rod of the wire pressing cylinder 1544 moves vertically downward, so as to firmly press the coaxial line 1101 into the wire feeding groove 1133.

[0193] The wire pressing cylinder 1544 can be a double-acting pneumatic actuator that can drive the wire pressing silicone pad 1545 to move up and down, thereby pressing and releasing the coaxial line 1101.

[0194] The wire clamping silicone pad 1545 can be a rectangular silicone block, typically made of silicone rubber with a Shore hardness of 50-60. Silicone material has advantages such as softness, wear resistance, and high friction, providing sufficient friction to prevent displacement of the coaxial cable 1101 without scratching its outer sheath or deforming its inner conductor. It should be noted that the lower surface of the wire clamping silicone pad 1545 is machined with an arc-shaped groove matching the shape of the coaxial cable 1101, increasing the contact area and improving the fixing effect.

[0195] The silicone pad fastener 1546 can be a small metal clip, which fixes the wire pressing silicone pad 1545 to the front end of the piston rod of the wire pressing cylinder 1544 by bolts.

[0196] The working process of the coaxial cable crimping mechanism 154 is as follows: After the coaxial cable feeding and conveying module 11 conveys the coaxial cable 1101 to the threading station and completes its positioning, the control system issues a crimping command. The piston rod of the crimping cylinder 1544 extends, driving the crimping silicone pad 1545 to move downward, firmly pressing the coaxial cable 1101 into the threading groove 1133 of the coaxial cable fixing fixture 113. Subsequently, the arc-shaped groove of the silicone pad fits tightly against the outer surface of the coaxial cable 1101, providing sufficient friction to prevent the coaxial cable 1101 from moving forward during threading. Finally, after threading is completed and visual inspection is performed, the control system issues a release command. The piston rod of the crimping cylinder 1544 retracts, driving the silicone pad to move upward, releasing the coaxial cable 1101, and the coaxial cable feeding and conveying module 11 can then convey the finished product to the next process.

[0197] Thus, using silicone pads as wire clamping contacts allows for the utilization of silicone's elastic properties, providing sufficient clamping force to prevent the coaxial cable 1101 from slipping back during threading, while also avoiding scratches and indentations caused by the metal clamping blocks to the cable sheath. The wire clamping cylinder 1544 provides stable and uniform clamping force, ensuring consistent clamping effect for each coaxial cable 1101.

[0198] Please see Figure 8 In some implementations, the visual detection module 16 includes a detection positioning component 161 and a visual component 162; The detection positioning component 161 is configured to clamp and position the SMA product during the detection process; The vision component 162 is configured to acquire images of SMA products and detect the status and size of the SMA products.

[0199] Specifically, the vision inspection module 16 can automatically inspect the appearance and key dimensions of SMA products after threading, ensuring that only qualified products can proceed to the next process. This vision inspection module 16 adopts an integrated design, mounting all inspection components on the threading module's crimping mechanism and sharing a common mounting base with the threading module. This not only reduces the equipment's footprint but also ensures consistency between the inspection position and the threading position, eliminating the need for additional product transfer and repositioning.

[0200] The detection and positioning component 161 is a positioning unit responsible for positioning the SMA product before image acquisition, eliminating minor product vibrations, and ensuring the clarity and repeatability of image acquisition. The vision component 162 is a detection unit responsible for acquiring images of the product and analyzing whether the product has defects through image processing algorithms, and measuring whether key dimensions meet requirements. The detection and positioning component 161 and the vision component 162 can work closely together through the control system, acting sequentially according to a preset timing sequence to complete the quality inspection task of the SMA product.

[0201] This enables fully automated, non-contact visual inspection of finished products, replacing manual visual inspection and thus improving inspection efficiency. Furthermore, machine vision inspection can accurately identify problems such as poor threading and appearance defects, and can precisely measure key dimensions such as threading depth and coaxiality, effectively avoiding missed and false detections. The inspection positioning component 161 ensures the product's position remains fixed during the inspection process, thereby improving the accuracy and reliability of inspection results and ensuring consistent product quality.

[0202] Please see Figure 8 In some embodiments, the detection and positioning assembly 161 includes a detection and positioning cylinder 1611, a detection and positioning cylinder mounting plate 1612, and a positioning clamp 1613. The detection and positioning cylinder 1611 is fixed on the wire pressing cylinder 1544 by the detection and positioning cylinder mounting plate 1612, and the positioning clamp 1613 is connected to the output end of the detection and positioning cylinder 1611.

[0203] Specifically, the detection and positioning cylinder 1611 can be a small double-acting pneumatic actuator, employing a parallel gripper cylinder design, capable of driving two grippers to open and close synchronously. The detection and positioning cylinder 1611 is used for the opening and closing of the moving positioning clamp 1613, realizing the clamping and release of the coaxial line 1101.

[0204] The detection and positioning cylinder mounting plate 1612 can be an L-shaped metal bracket, typically made of aluminum alloy. One side is bolted to the body of the wire pressing cylinder 1544, and the other side is used to mount the detection and positioning cylinder 1611. This ensures that the detection and positioning assembly 161 and the wire pressing mechanism share a common mounting base, thereby guaranteeing the coaxiality of the positioning clamp 1613 and the coaxial line 1101, while also reducing installation space.

[0205] The positioning clip 1613 may consist of two symmetrical jaws, typically made of nylon or polytetrafluoroethylene (PTFE), which offers advantages such as wear resistance and prevents scratching of the outer sheath of the coaxial cable 1101. In some embodiments, the clamping surfaces of the jaws may be machined with arc-shaped grooves that precisely match the outer diameter of the coaxial cable 1101, thereby increasing the contact area with the coaxial cable 1101 and improving clamping stability. When the positioning clip 1613 is clamped, it can firmly fix the coaxial cable 1101, preventing product displacement even after minor stress release following threading.

[0206] The workflow of the detection and positioning component 161 is as follows: After the SMA assembly is threaded, the clamping cylinder 1544 remains in a clamping state, fixing the middle part of the coaxial cable 1101 in the wire release groove 1133. At this time, the detection and positioning cylinder 1611 actuates, driving the two grippers to close and clamp the front end of the coaxial cable 1101, forming a two-point fixation with the clamping cylinder 1544, eliminating any slight shaking of the SMA product. After image acquisition is completed, the detection and positioning cylinder 1611 actuates, driving the two grippers to open and release the coaxial cable 1101, waiting for the next detection cycle.

[0207] Thus, by using the positioning clamp 1613 driven by the positioning cylinder 1611 to quickly clamp the SMA product before visual inspection, the SMA product can be kept fixed during the inspection process, thereby avoiding image blurring and inspection errors caused by product shaking or displacement.

[0208] Please see Figure 8 In some embodiments, the vision component 162 includes a detection camera 1621, a camera fixing plate 1622, a vision light source 1623, and a light source fixing block 1624. The detection camera 1621 is mounted on the pressure cylinder mounting plate 1543 via the camera fixing piece 1622, and the vision light source 1623 is connected to the pressure mechanism support plate 1542 via the light source fixing block 1624.

[0209] Specifically, the inspection camera 1621 can be a high-resolution industrial area scan camera. In some embodiments, the inspection camera 1621 is typically equipped with a high-resolution industrial lens, the focal length of which is selected according to the inspection distance to obtain optimal imaging results. It should be noted that the exposure time and gain of the inspection camera 1621 can be adjusted by software to adapt to different lighting conditions.

[0210] The camera mounting plate 1622 can be a metal plate with a U-shaped groove, typically made of aluminum alloy. One side of the camera mounting plate 1622 is fixed to the wire pressing cylinder mounting plate 1543 by bolts, and the other side is connected to the inspection camera 1621 via the U-shaped groove. The height of the inspection camera 1621 can be adjusted up and down via the U-shaped groove to accommodate the inspection needs of different specifications of SMA products.

[0211] The visual light source 1623 can employ a ring-shaped LED light source, providing uniform ring illumination. This ring light source can illuminate the product from various angles, effectively eliminating reflections and shadows on the surface of the metal sleeve, highlighting the product's contours and internal details, such as the location of the rubber stopper and the condition of the core wire. It should be noted that the brightness of the light source can be steplessly adjusted via a controller to achieve the best imaging effect.

[0212] The light source mounting block 1624 can be an L-shaped metal bracket, which is fixed to the wire pressing mechanism support plate 1542 by bolts, and is used to install the visual light source 1623. The installation position of the light source mounting block 1624 should be such that the center of the light source coincides with the optical axis of the detection camera 1621, and the distance between it and the product should be maintained at the optimal illumination distance.

[0213] The workflow of the vision component 162 is as follows: After the detection and positioning component 161 clamps and positions the SMA product, the vision light source 1623 is illuminated to provide uniform illumination for the product. Subsequently, the detection camera 1621 acquires an image of the product within the optimal exposure time and transmits the image data to the image processing unit of the control system. Next, the image processing unit performs a series of processing and analysis on the image, extracts the product's feature information, and determines whether the product is qualified. After the detection is completed, the vision light source 1623 is turned off, awaiting the next image acquisition cycle.

[0214] Thus, the visual light source 1623 can provide uniform and sufficient illumination to the inspection area, ensuring that the inspection camera 1621 acquires clear and high-quality product images, providing a reliable foundation for subsequent image analysis and inspection. The inspection camera 1621 can be flexibly adjusted in installation height to accommodate SMA connectors of different specifications and coaxial cables 1101 of different diameters, improving the versatility of the device.

[0215] Please see Figure 9 This application also provides an SMA assembly threading detection method, applied to the aforementioned SMA assembly threading device 1, the method comprising: 011: Based on the feeding and conveying component 111, the coaxial cable 1101 in the coaxial cable fixing fixture 113 located in the coaxial cable feeding and conveying module 11 is conveyed to the threading station; 012: Based on the rubber stopper conveying assembly 123, the SMA rubber stopper 1201 output from the rubber stopper feeder 122 of the SMA rubber stopper feeding module 12 is conveyed to the assembly station of the SMA assembly module 14 in the first preset direction. 013: Based on the sleeve conveying assembly 133, the SMA sleeve 1301 output from the sleeve feeder 132 of the SMA sleeve feeding module 13 is conveyed to the assembly station of the SMA assembly module 14 in the second preset direction. 014: The assembly conveying mechanism 141 based on the SMA assembly module 14 conveys the SMA plug 1201 and the SMA sleeve 1301 to the stamping station; 015: Based on the assembly stamping mechanism 142, the SMA plug 1201 is stamped into the SMA sleeve 1301 to form the SMA assembly 1401, and the SMA assembly 1401 is transported to the threading station of the SMA assembly threading module 15. 016: The material transfer mechanism 151 based on the SMA assembly threading module 15 transports the SMA assembly 1401 to the threading station. 017: The SMA assembly 1401 is threaded into the coaxial cable 1101 fixed by the coaxial cable crimping mechanism 154 based on the threading mechanism 153 to form the SMA product; 018: The detection and positioning component 161 based on the vision inspection module 16 clamps and positions the SMA product; 019: The vision component 162 based on the vision inspection module 16 acquires images of SMA products and detects the status and size of SMA products; 020: Based on the coaxial cable feeding and conveying module 11, the inspected SMA products are conveyed to the next process.

[0216] Specifically, in the previous process, the coaxial cable 1101 is placed into the coaxial cable fixing fixture 113. The servo motor of the feeding and conveying component 111 drives the synchronous belt 1111 to rotate, causing the slide 1115 and the coaxial cable fixing fixture 113 to move along the guide rail 1112 towards the threading station. When the slide 1115 reaches the threading station, the position sensor detects the arrival signal and sends it to the control system. The control system issues a positioning command, and the positioning cylinder 1122 of the slide positioning component 112 drives the positioning slot 1124 to engage with the positioning shaft 1117, locking the slide 1115.

[0217] The rubber stopper feeder 122 arranges the bulk rubber stoppers into a horizontal output direction. The straight vibrator of the rubber stopper conveying assembly 123 drives the rubber stoppers forward along the material channel. With the assistance of the direction-changing limiting plate, the direction is changed to vertical, and the rubber stoppers are conveyed to the assembly station through the conveying pipe. The rubber stopper material sensor 1240 detects the material status in the conveying pipe in real time and feeds the signal back to the control system. The control system automatically adjusts the vibration frequency of the feeder and the straight vibrator according to the material status.

[0218] The sleeve feeder 132 arranges the bulk sleeves into a vertical output direction, and the straight vibrator of the sleeve conveying assembly 133 drives the sleeves forward along the material channel to the assembly station. The sleeve material sensor 1339 detects the material status in the material channel in real time and feeds the signal back to the control system to realize the feeding control.

[0219] The assembly conveyor block 1418 of the assembly conveyor mechanism 141 first receives the sleeve. Then, the rubber plug feeding cylinder 1411 drives the rubber plug pusher rod 1412 to push the rubber plug above the sleeve. Under the action of gravity, the rubber plug falls into the sleeve to complete the pre-assembly. The two-stage conveyor cylinder 1415 drives the assembly conveyor block 1418 to move to the stamping station in the first stage. The riveting detection sensor 1429 detects whether the rubber plug is in place. If the rubber plug is detected, the stamping cylinder 1425 drives the stamping head 1426 to press the rubber plug completely into the sleeve to form the assembly. If the rubber plug is not detected, the two-stage conveyor cylinder 1415 drives the conveyor block to reset and reassemble. After stamping, the two-stage conveyor cylinder 1415 moves to the unloading station in the second stage. The air blowing auxiliary component 1428 blows the assembly into the conveying pipe and conveys it to the threading module.

[0220] The material transfer mechanism 151's material transfer block 1515 receives the assembly. After the assembly material detection sensor 1521 detects the material, the material transfer cylinder 1513 drives the material transfer block 1515 to the threading position, and the feeding cylinder 1517 pushes the assembly into the SMA assembly clamp. The clamp cylinder 1534 clamps the assembly, and the coaxial cable pressing mechanism 154's pressing cylinder 1544 drives the silicone pad to press the coaxial cable 1101. The threading cylinder 1531 drives the clamp to move towards the coaxial cable 1101. After completing the threading action, the clamp opens, and the threading cylinder 1531 resets.

[0221] The positioning clamp 1613 of the detection positioning component 161 clamps the front end of the coaxial cable 1101, the light source of the vision component 162 is lit, and the detection camera 1621 acquires the product image and transmits it to the image processing unit. The image processing unit performs preprocessing, feature extraction, size measurement, and defect detection on the image, determines whether the product is qualified, and sends the detection results to the control system.

[0222] After the inspection is completed, the positioning clamp 1613 and the pressing cylinder 1544 are reset in sequence, and the coaxial feeding and conveying module 11 transports qualified products to the next process, while unqualified products are automatically rejected.

[0223] In some implementations, the SMA assembly threading device 1 is equipped with an automatic parameter recall system for product changeover. The system pre-stores production parameter sets for all SMA product specifications, including stroke limits for each cylinder, sensor detection delays, vibration frequency of the linear vibrator, stamping cylinder pressure, threading speed, visual inspection templates, and dimensional tolerances. When changing product types, the operator simply selects the corresponding product model on the human-machine interface or scans the QR code on the product batch. The system automatically recalls the pre-stored parameter sets and sends all parameters to the corresponding actuators and sensors, eliminating the need for manual parameter modification. Simultaneously, the system automatically verifies key parameters to ensure correct settings. After parameter recall, the system prompts the operator to conduct trial production. Once the trial production is successful, mass production can commence.

[0224] Therefore, this application also provides an SMA assembly threading inspection method, which is implemented based on the aforementioned SMA assembly threading device 1. In this way, the SMA assembly threading device 1 integrates multiple dispersed processes into a unified automated production unit through modular integrated design, replacing manual labor in core operations. This not only improves production efficiency but also eliminates the safety risks of manual stamping. Furthermore, the coordinated operation of each module in the SMA assembly threading device 1 ensures the stability of the production rhythm, avoids quality fluctuations caused by manual production, and saves production space, reducing labor and site costs.

[0225] In this specification, the terms "specifically," "furthermore," "particularly," "understandably," etc., refer to specific features, structures, materials, or characteristics described in connection with embodiments or examples that are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0226] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of executable request code comprising one or more steps for implementing a particular logical function or process, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order according to the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0227] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A SMA assembly threading device (1), characterized in that, include: Device fixing base plate (10); The coaxial cable feeding and conveying module (11) is installed on the device base plate (10) and is configured to convey and position the coaxial cable (1101) to the threading station; The SMA plug feeding module (12) is installed on the device base plate (10) and is configured to transport the SMA plug (1201) to the assembly station in a first preset direction; The SMA sleeve feeding module (13) is installed on the device base plate (10) and is configured to transport the SMA sleeve (1301) to the assembly station in a second preset direction; The SMA assembly module (14) is installed on the device base plate (10) and configured to assemble the SMA plug (1201) and the SMA sleeve (1301) and stamp them to form an SMA assembly (1401), and to transport the SMA assembly (1401) to the threading station. The SMA assembly threading module (15) is mounted on the device mounting base plate (10) and configured to thread the SMA assembly (1401) into the coaxial cable (1101) to form an SMA product. as well as A visual inspection module (16), mounted on the device mounting base plate (10), is configured to inspect the status and dimensions of the SMA product.

2. The SMA assembly threading device (1) according to claim 1, characterized in that The coaxial feeding and conveying module (11) includes a feeding and conveying component (111), a slide positioning component (112), and a coaxial fixing fixture (113). The loading and transport assembly (111) is configured to move the coaxial fixing fixture (113) to the threading station; The slide positioning assembly (112) is fixedly installed on the loading and transport assembly (111) and is configured to position the coaxial fixing fixture (113); The coaxial cable fixing fixture (113) is fixedly installed on the loading and transport assembly (111) and is configured to carry and fix the coaxial cable (1101).

3. The SMA assembly threading device (1) according to claim 2, characterized in that The feeding and conveying assembly (111) includes a timing belt (1111), a guide rail (1112), a connecting buckle (1113), an aluminum profile bracket (1114), a slide (1115), a pulley (1116), a positioning shaft (1117), and a positioning shaft fixing plate (1118). The timing belt (1111) is connected to the slide (1115) through the connecting buckle (1113). The guide rail (1112) is fixed on the aluminum profile bracket (1114). The pulley (1116) is fixed around the edge of the slide (1115) and engages with both sides of the guide rail (1112). The positioning shaft (1117) is connected to the slide (1115) through the positioning shaft fixing plate (1118). The slide positioning assembly (112) includes a first fixing plate (1121), a positioning cylinder (1122), a positioning slide rail (1123), and a positioning slot (1124); the positioning cylinder (1122) is fixed to the aluminum profile bracket (1114) via the first fixing plate (1121); the positioning slide rail (1123) is mounted on the first fixing plate (1121); the positioning slot (1124) is slidably connected to the positioning slide rail (1123); the output end of the positioning cylinder (1122) is connected to the positioning slot (1124); the positioning slot (1124) is configured to position the coaxial fixing fixture (113) based on the engaging positioning shaft (1117). The coaxial cable fixing fixture (113) includes a fixture base plate (1131), a fixing frame (1132), a cable feeding groove (1133), a clamping block (1134), a baffle (1135), and a cable support (1136); the fixing frame (1132) is connected to the slide (1115); the fixture base plate (1131) is mounted on the fixing frame (1132); the cable feeding groove (1133) is disposed on the fixture base plate (1131); the clamping block (1134) is disposed inside the cable feeding groove (1133); the baffle (1135) is fixed on both sides of the cable feeding groove (1133); the cable support (1136) is fixed on the fixture base plate (1131) to support the coaxial cable (1101).

4. The SMA assembly threading device (1) according to claim 1, characterized in that The SMA rubber stopper feeding module (12) includes a first mechanism fixing frame (121), a rubber stopper feeder (122), and a rubber stopper conveying assembly (123). The first mechanism fixing frame (121) is mounted on the device fixing base plate (10); The rubber stopper feeder (122) is mounted on the first mechanism fixture (121) and is configured to output the SMA rubber stopper (1201). The rubber stopper conveying assembly (123) is configured to convey the SMA rubber stopper (1201) output by the rubber stopper feeder (122) to the assembly station of the SMA assembly module (14) in a first preset direction; The rubber stopper conveying assembly (123) includes a fixing bolt (1231), a first vibrator fixing plate (1232), a first vibrator (1233), a rubber stopper channel (1234), a first channel cover plate (1235), an SMA rubber stopper reversing limiting plate (1236), a material guide (1237), an SMA rubber stopper conveying pipe (1238), a first sensor fixing block (1239), and a rubber stopper material sensor (1240). The first vibrator fixing plate (1232) is fixed to the first mechanism fixing frame (121) by the fixing bolt (1231). The bottom of the first vibrator (1233) is fixed to the first vibrator fixing plate (1232), and the rubber stopper channel (1234) is... The first material channel cover plate (1235) is fixed on the top of the first vertical vibrator (1233) and fixed above the rubber stopper material channel (1234); the SMA rubber stopper reversing limiting plate (1236) is fixed on the rubber stopper material channel (1234) and is configured to assist the SMA rubber stopper (1201) in changing from the horizontal direction to the vertical direction; the material guide (1237) is fixed on the rubber stopper material channel (1234) and connected to the SMA rubber stopper conveying pipe (1238); the rubber stopper material sensor (1240) is installed on the SMA assembly module (14) through the first sensor fixing block (1239) and is configured to detect the material state in the SMA rubber stopper conveying pipe (1238).

5. The SMA assembly threading device (1) according to claim 1, characterized in that The SMA sleeve feeding module (13) includes a second mechanism fixing frame (131), a sleeve feeder (132), and a sleeve conveying assembly (133). The second mechanism fixing frame (131) is installed on the device fixing base plate (10); The sleeve feeder (132) is mounted on the second mechanism fixture (131) and is configured to output the SMA sleeve (1301). The sleeve conveying assembly (133) is configured to convey the SMA sleeve (1301) output by the sleeve feeder (132) to the assembly station of the SMA assembly module (14) in a second preset direction. The sleeve conveying assembly (133) includes a support plate (1331), a second fixing plate (1332), a straight vibrator fixing bolt (1333), a second straight vibrator fixing plate (1334), a second straight vibrator (1335), a sleeve material channel (1336), a second material channel cover plate (1337), a second sensor fixing block (1338), and a sleeve material sensor (1339). One end of the support plate (1331) is connected to the device fixing base plate (10), and the other end is connected to the second fixing plate (1332). The second straight vibrator fixing plate (1334) is connected to the straight vibrator through the straight vibrator. The vibrator fixing bolt (1333) is fixed on the second fixing plate (1332), the bottom of the second straight vibrator (1335) is fixed on the second straight vibrator fixing plate (1334), the sleeve material channel (1336) is fixed on the top of the second straight vibrator (1335), and the second material channel cover plate (1337) is fixed above the sleeve material channel (1336); the sleeve material sensor (1339) is installed on one side of the sleeve material channel (1336) through the second sensor fixing block (1338) and is configured to detect the material state in the sleeve material channel (1336).

6. The SMA assembly threading device (1) according to claim 1, characterized in that The SMA assembly module (14) includes an assembly conveying mechanism (141) and an assembly stamping mechanism (142). The assembly conveying mechanism (141) is configured to convey the SMA plug (1201) and the SMA sleeve (1301) to the stamping station; The assembly stamping mechanism (142) is configured to stamp the SMA plug (1201) into the SMA sleeve (1301) to form the SMA assembly (1401) and to convey the SMA assembly (1401) to the threading station of the SMA assembly threading module (15).

7. The SMA assembly threading device (1) according to claim 6, characterized in that The assembly conveying mechanism (141) includes a rubber stopper feeding cylinder (1411), a rubber stopper feeding cylinder fixing plate (1419), a rubber stopper push rod (1412), a rubber stopper push rod limiting block (1413), a rubber stopper unloading guide block (1414), a two-stage conveying cylinder (1415), a conveying cylinder fixing block (1416), an assembly conveying base (1417), an assembly conveying block (1418), and a conveying block limiting block (1420). The rubber stopper feeding cylinder (1411) is fixed on the assembly conveying base (1417) by the rubber stopper feeding cylinder fixing plate (1419); The rubber stopper push rod (1412) is connected to the output end of the rubber stopper feeding cylinder (1411), and the rubber stopper push rod limiting block (1413) is fixed on the rubber stopper feeding cylinder fixing plate (1419) and located on both sides of the rubber stopper push rod (1412). The rubber stopper feeding guide block (1414) is fixed on the conveying cylinder fixing block (1416) and is configured to connect the SMA rubber stopper conveying pipe (1238) and guide the SMA rubber stopper (1201). The two-stage conveying cylinder (1415) is fixed to the assembly conveying base (1417) by the conveying cylinder fixing block (1416); The assembly conveying block (1418) is connected to the output end of the two-stage conveying cylinder (1415) and is slidably disposed within the assembly conveying base (1417); The conveyor block limiter (1420) is fixed to one end of the assembly conveyor base (1417) and is configured to limit the movement distance of the assembly conveyor block (1418).

8. The SMA assembly threading device (1) according to claim 6, characterized in that The assembly stamping mechanism (142) includes a mechanism fixing column (1421), a mounting base plate (1422), a stamping cylinder fixing column (1423), a stamping cylinder fixing plate (1424), a stamping cylinder (1425), a stamping head (1426), a stamping head guard plate (1427), an air blowing auxiliary component (1428), a riveting detection sensor (1429), a riveting detection sensor fixing plate (1430), an assembly unloading auxiliary block (1431), an SMA assembly conveying pipe (1432), an assembly detection sensor (1433), and an assembly detection sensor fixing plate (1434). The mechanism fixing column (1421) is installed on the device fixing base plate (10), the mounting base plate (1422) is fixed on the mechanism fixing column (1421), the stamping cylinder fixing plate (1424) is fixed on the mounting base plate (1422) through the stamping cylinder fixing column (1423), and the stamping cylinder (1425) is fixed on the stamping cylinder fixing plate (1424); The stamping head (1426) is connected to the output end of the stamping cylinder (1425), and the stamping head guard plate (1427) is installed on the side of the stamping head (1426); The blowing auxiliary component (1428) is installed on one side of the stamping cylinder fixing column (1423) and is configured to blow the stamped SMA assembly (1401) into the SMA assembly delivery pipe (1432). The riveting detection sensor (1429) is fixed to the side of the mechanism fixing column (1421) by the riveting detection sensor fixing piece (1430), and is configured to detect the pre-assembly state of the SMA rubber plug (1201) and the SMA sleeve (1301). The assembly unloading auxiliary block (1431) is fixed on the mounting base plate (1422) and connected to the SMA assembly conveying pipe (1432); The assembly detection sensor (1433) is fixed to the mounting base plate (1422) by the assembly detection sensor fixing piece (1434) and is configured to detect the material status in the SMA assembly conveying pipe (1432).

9. The SMA assembly threading device (1) according to claim 1, characterized in that, The SMA assembly threading module (15) includes a material transfer mechanism (151), a threading mechanism (153), and a coaxial cable pressing mechanism (154). The material transfer mechanism (151) is configured to transport the SMA assembly (1401) to the threading station; The threading mechanism (153) is configured to thread the SMA assembly (1401) into the coaxial cable (1101) to form the SMA product; The coaxial cable pressing mechanism (154) is configured to fix the coaxial cable (1101) during the threading process.

10. The SMA assembly threading device (1) according to claim 9, characterized in that, The material transfer mechanism (151) includes a mechanism mounting plate (1511), an SMA assembly guide block (1512), a material transfer cylinder (1513), a material transfer cylinder fixing block (1514), a material transfer block (1515), a material transfer base (1516), a feeding cylinder (1517), a feeding cylinder fixing block (1518), a material transfer block limiting member (1519), a buffer (1520), an assembly material detection sensor (1521), and a sensor fixing plate (1522); the mechanism mounting plate (1511) is fixed between the mechanism fixing columns (1421) of the SMA assembly module (14); the SMA assembly guide block (1512), the material transfer cylinder fixing block (1514), the material transfer base (1516), the feeding cylinder fixing block (1518), and the material transfer block limiting member (1519) 1519) is fixed sequentially on the mechanism mounting plate (1511); the transfer cylinder (1513) is fixed based on the transfer cylinder fixing block (1514), the feeding cylinder (1517) is fixed based on the feeding cylinder fixing block (1518), the transfer block (1515) is connected to the output end of the transfer cylinder (1513) and slidably disposed on the transfer base (1516); the buffer (1520) is fixed on the transfer block limiting member (1519) to limit the movement distance of the transfer block (1515) and provide buffer; the assembly material detection sensor (1521) is mounted on the coaxial line pressing mechanism (154) through the sensor fixing piece (1522) and is configured to detect the material status of the SMA assembly (1401) in the transfer block (1515); The threading mechanism (153) includes a threading cylinder (1531), a threading cylinder support plate (1532), an SMA assembly clamp (1533), a clamp cylinder (1534), and a clamp cylinder fixing plate (1535); the threading cylinder support plate (1532) is connected to the device fixing base plate (10), and the threading cylinder (1531) is fixed on the threading cylinder support plate (1532); the clamp cylinder fixing plate (1535) is connected to the movable side of the threading cylinder (1531), and the clamp cylinder (1534) is fixed on the clamp cylinder fixing plate (1535); the SMA assembly clamp (1533) is connected to the clamp cylinder (1534); the front end of the SMA assembly clamp (1533) is provided with a flared chamfer and is configured to guide the coaxial line (1101) to pass through the SMA assembly (1401).

11. The SMA assembly threading device (1) according to claim 9, characterized in that, The coaxial wire pressing mechanism (154) includes a wire pressing mechanism fixed base plate (1541), a wire pressing mechanism support plate (1542), a wire pressing cylinder mounting plate (1543), a wire pressing cylinder (1544), a wire pressing silicone pad (1545), and a silicone pad fixing component (1546). The pressing mechanism fixing base plate (1541) is connected to the device fixing base plate (10). The pressing mechanism support plate (1542) is fixed on the pressing mechanism fixing base plate (1541). The pressing cylinder mounting plate (1543) is fixed on the pressing mechanism support plate (1542). The pressing cylinder (1544) is fixed on the pressing cylinder mounting plate (1543). The pressing silicone pad (1545) is connected to the output end of the pressing cylinder (1544) through the silicone pad fixing piece (1546).

12. The SMA assembly threading device (1) according to claim 1, characterized in that, The visual detection module (16) includes a detection and positioning component (161) and a visual component (162). The detection and positioning component (161) is configured to clamp and position the SMA product during the detection process; The detection and positioning component (161) includes a detection and positioning cylinder (1611), a detection and positioning cylinder mounting plate (1612), and a positioning clamp (1613). The detection and positioning cylinder (1611) is fixed on the wire pressing cylinder (1544) through the detection and positioning cylinder mounting plate (1612), and the positioning clamp (1613) is connected to the output end of the detection and positioning cylinder (1611). The vision component (162) is configured to acquire images of the SMA product and detect the state and size of the SMA product; The vision component (162) includes a detection camera (1621), a camera mounting plate (1622), a vision light source (1623), and a light source mounting block (1624). The detection camera (1621) is mounted on the pressure cylinder mounting plate (1543) via the camera mounting plate (1622), and the vision light source (1623) is connected to the pressure mechanism support plate (1542) via the light source mounting block (1624).

13. A method for inspecting thread threading in SMA assembly, characterized in that, The method, applied to the SMA assembly threading device (1) as described in any one of claims 1 to 12, comprises: The coaxial cable (1101) in the coaxial cable fixing fixture (113) located in the coaxial cable feeding and conveying module (111) is transported to the threading station based on the feeding and conveying component (111), wherein the coaxial cable fixing fixture (113) is positioned based on the slide positioning component (112). Based on the rubber stopper conveying assembly (123), the SMA rubber stopper (1201) output by the rubber stopper feeder (122) of the SMA rubber stopper feeding module (12) is conveyed to the assembly station of the SMA assembly module (14) in the first preset direction. Based on the sleeve conveying assembly (133), the SMA sleeve (1301) output by the sleeve feeder (132) of the SMA sleeve feeding module (13) is conveyed to the assembly station of the SMA assembly module (14) in the second preset direction. The assembly conveying mechanism (141) based on the SMA assembly module (14) conveys the SMA plug (1201) and the SMA sleeve (1301) to the stamping station. The SMA plug (1201) is pressed into the SMA sleeve (1301) by the assembly stamping mechanism (142) to form an SMA assembly (1401), and the SMA assembly (1401) is conveyed to the threading station of the SMA assembly threading module (15). The material transfer mechanism (151) based on the SMA assembly threading module (15) transports the SMA assembly (1401) to the threading station; The SMA assembly (1401) is threaded into the coaxial cable (1101) fixed by the coaxial cable pressing mechanism (154) using the threading mechanism (153) to form an SMA product. The detection and positioning component (161) based on the vision inspection module (16) clamps and positions the SMA product; The vision component (162) based on the vision inspection module (16) acquires the image of the SMA product and detects the status and size of the SMA product; The SMA product that has been inspected is transported to the next process based on the coaxial feeding and conveying module (11).

Images