Automatic cap stripping and tin dipping device for wire

Abstract

The application belongs to the technical field of wire harness processing, and provides a wire automatic cap stripping and tin dipping device, which comprises a mounting bottom plate, a tool guiding and sliding mechanism and a tool pushing and sending mechanism are arranged on the mounting bottom plate, a plurality of circulating tools are arranged on the tool guiding and sliding mechanism, and a tool conveying mechanism is arranged upstream of the tool guiding and sliding mechanism; a wire sequence detection mechanism, a core wire straightening mechanism, a zero cutting cap stripping mechanism and a tin dipping mechanism are sequentially arranged on the mounting bottom plate along the conveying direction of the circulating tools, and a tool stop mechanism is further arranged between the wire sequence detection mechanism and the tool guiding and sliding mechanism. The application can realize the full-process integrated assembly line operation of core wire sequence detection, core wire straightening and correction, core wire fixed-length zero cutting, insulating wire cap stripping, core wire flux infiltration and automatic tin dipping, the processes are smoothly connected and accurately linked, the application can meet the large-scale automatic production demand of USB wire harness assembly in large quantity, continuity, high precision and high yield, and has high practicability.

Description

Technical Field

[0001] This invention relates to the field of wire harness processing technology, and in particular to an automatic wire decapping and tinning device. Background Technology

[0002] USB cable harnesses are core electrical connection components widely used in industrial automation, machine vision, smart warehousing, security monitoring, and smart terminal devices. They are primarily used for power transmission and high-speed differential signal interaction between devices. Depending on different transmission protocols such as USB 2.0, USB 3.2, and Type-C, USB cable harnesses are equipped with corresponding power cores, differential signal cores, shielding layers, and outer protective sheaths to meet the power supply and data transmission rate requirements of different scenarios. A typical USB cable harness assembly mainly consists of a cable body and a connector assembly. The cable body integrates multiple functional cores. During the product assembly process, the insulation layer at the ends of the cores must be stripped, and the exposed conductors are soldered to the connector terminals to ensure stable conductivity between the cable and the connector. The pre-treatment processes of stripping the caps, applying flux, and soldering the ends of the cores are crucial preliminary steps to ensure the quality of subsequent soldering and guarantee the conductivity stability and structural robustness of the cable harness.

[0003] Currently, the stripping of cores, application of flux, and soldering of wires are mostly done manually. This is not only labor-intensive and inefficient, failing to meet the demands of mass production, but also relies entirely on the operator's experience, making it difficult to guarantee processing quality. This results in poor assembly consistency and low yield of finished products. Although some stand-alone machines have emerged that can automatically strip cores, apply flux, and solder, these machines are all separate, independent structures with each processing step operating independently and unable to be linked. After completing a single process, the wires must be manually transferred to the next machine for further processing. This results in long process flow intervals, high auxiliary labor costs, and extremely poor overall production continuity. Furthermore, multiple manual transfers and repeated clamping and positioning can easily cause wire misalignment, core bending, and conductor contamination, further affecting processing accuracy and subsequent soldering quality. In addition, separate machines cannot achieve process coordination and precise positioning, leaving significant shortcomings in processing accuracy, operating efficiency, and product consistency, making it difficult to meet the demands of high-precision, high-yield, large-scale automated production of USB wire harnesses. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art as mentioned above, in-depth research was conducted, and after a great deal of creative work, the present invention was completed.

[0005] Specifically, the technical problem to be solved by the present invention is to provide an automatic wire stripping and soldering device to solve the problem that current wire harness processing equipment cannot realize the integrated production line operation of stripping the core wires, applying flux, and soldering the wire body, thus making it difficult to meet the technical problem of large-scale automatic production of USB wire harnesses with high precision and high yield.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: An automatic wire decapping and soldering device includes a mounting base plate, on which a tooling guide sliding mechanism and a tooling feeding mechanism are provided. The tooling guide sliding mechanism is provided with a plurality of circulating tools, and a tooling conveying mechanism is provided upstream of the tooling guide sliding mechanism. One end of the tooling guide sliding mechanism is connected to the unloading end of the tooling conveying mechanism. The mounting base plate is provided with a wire sequence detection mechanism, a core wire straightening mechanism, a zero-cutting and cap-stripping mechanism and a soldering mechanism in sequence along the conveying direction of the transfer tooling. A tooling stop mechanism is also provided between the wire sequence detection mechanism and the tooling guide sliding mechanism.

[0007] As an improved technical solution, the transfer tooling includes a transfer base, a wire guide plate is fixedly installed at one end of the transfer base, a wire clamping assembly is provided at the other end of the transfer base, a wire support part is provided between the wire clamping assembly and the wire guide plate, and the wire support part is an integrally formed structure of the transfer base; The wire clamping assembly includes a fixed wire clamping block, a floating wire clamping block, and a first compression spring. The fixed wire clamping block is fixedly installed on the transfer base, and a first wire clamping groove adapted to the outer diameter of the wire body is opened on one side of the top of the fixed wire clamping block. The floating wire clamping block is hingedly installed on the transfer base, and a second wire clamping groove adapted to the outer diameter of the wire body is opened on the side of the floating wire clamping block facing the fixed wire clamping block. The second wire clamping groove is correspondingly arranged with the first wire clamping groove. The first compression spring is located between the floating wire clamping block and the transfer base, and under the action of the first compression spring, the floating wire clamping block is set against the fixed wire clamping block.

[0008] As an improved technical solution, the tooling guide sliding mechanism includes a first fixed guide rail and a second fixed guide rail. The first fixed guide rail has two sections along its length direction. The two sections of the first fixed guide rail are respectively fixedly installed on the mounting base plate along the X-axis direction through a first fixed seat. The soldering mechanism is located between the two sections of the first fixed guide rail. The second fixed guide rail is fixedly installed on the mounting base plate along the X-axis direction through a second fixed seat, and the second fixed guide rail is arranged parallel to the first fixed guide rail. The first fixed guide rail has an integrally formed sliding guide portion. The bottom of the transfer base is provided with a groove that matches the sliding guide portion. The transfer base is slidably installed on the first fixed guide rail through the groove and the sliding guide portion. The first fixed guide rail has an integrally formed first support edge on the side near the second fixed guide rail, and the second fixed guide rail has an integrally formed second support edge on the side near the first fixed guide rail. The bottom surface of the transfer base abuts against the first support edge and the second support edge, and the other end face of the transfer base abuts against the inner side surface of the second fixed guide rail.

[0009] As an improved technical solution, the tooling feeding mechanism includes a fixed slide fixedly installed on the mounting base plate. A linear guide rail is slidably installed on the fixed slide along the X-axis direction. A plurality of guide rail follower seats are fixedly installed on the linear guide rail along its length direction. Tooling feeding components are respectively provided on the guide rail follower seats. The tooling feeding components are all located between the first fixed guide rail and the second fixed guide rail. A tooling feeding cylinder is fixedly installed on the mounting base plate along the X-axis direction. A connecting block is installed at the end of the piston rod of the tooling feeding cylinder. The connecting block is fixedly connected to one of the guide rail follower seats. A first buffer and a first limit screw corresponding to the connecting block are installed on the mounting base plate. The tooling feeding assembly includes a tooling mounting base, a tooling tool, and a second compression spring. The tooling mounting base is fixedly mounted on the guide rail follower seat. One end of the tooling tool is hinged to the tooling mounting base, and the other end of the tooling tool is provided with an integrally formed tooling feeding part. The tooling feeding part has an inclined downward pressure guide surface. Corresponding slots are provided on both sides of the transfer base. The second compression spring is located between the tooling tool and the tooling mounting base, and both ends of the second compression spring are respectively connected to the tooling feeding part and the tooling mounting base.

[0010] As an improved technical solution, the tooling stop mechanism includes a first mounting bracket fixedly mounted on the mounting base plate. A front stop cylinder and a rear stop cylinder are sequentially arranged on the first mounting bracket along the conveying direction of the transfer tooling. Both the front stop cylinder and the rear stop cylinder are fixedly mounted on the first mounting bracket along the Z-axis direction. A front stop block is fixedly mounted on the piston rod end of the front stop cylinder, and a rear stop block is fixedly mounted on the piston rod end of the rear stop cylinder. The line sequence detection mechanism includes a vertical plate fixedly installed on the first mounting bracket. A camera mounting plate is fixedly installed on the top of the vertical plate. A detection camera and a light source are fixedly installed on the camera mounting plate. A lens is installed on the detection camera, and the light source is located directly below the lens.

[0011] As an improved technical solution, the core wire straightening mechanism includes a second mounting bracket fixedly mounted on the mounting base plate. A first sliding bracket driven by a wire-pulling cylinder is slidably mounted on the second mounting bracket along the Y-axis direction. A wire-clamping cylinder is fixedly mounted on the first sliding bracket along the Z-axis direction. Wire-pulling knife holders are fixedly mounted on the slide block of the wire-clamping cylinder. Wire-pulling knives are fixedly mounted on each of the wire-pulling knife holders. Two wire-pulling knives are arranged correspondingly, and a second limiting screw is threaded onto one of the wire-pulling knife holders.

[0012] As an improved technical solution, the zero-cutting cap stripping mechanism includes a third mounting bracket fixedly installed on the mounting base plate. A cap stripping electric cylinder is fixedly installed on the third mounting bracket along the Y-axis direction. A second sliding bracket is fixedly connected to the slide of the cap stripping electric cylinder. A wire stripping knife holder driven by a cap stripping motor is slidably installed on the second sliding bracket along the Z-axis direction. Two wire stripping knife holders are provided correspondingly. A wire stripping knife is fixedly installed on each of the two wire stripping knife holders. The two wire stripping knives are arranged correspondingly, and under the drive of the cap stripping motor, the two wire stripping knives slide towards each other / away from each other. A wire cap receiving box is also fixedly installed on the second sliding bracket. The wire cap receiving box is located on the side of the wire stripper away from the tooling guide sliding mechanism, and the wire cap receiving box is located between the two wire strippers. The end of the wire cap receiving box near the wire stripper has a core wire insertion port, and the bottom of the wire cap receiving box is connected to a wire cap conveying pipe.

[0013] As an improved technical solution, the soldering mechanism includes a tooling flipping section, a flux container, a solder pot, and a solder scraping section. The tooling flipping section is located between two sections of the first fixed guide rail. The flux container and the solder pot are both located on the side of the tooling flipping section away from the tooling guide sliding mechanism. The flux container and the solder pot are arranged sequentially along the conveying direction of the transfer tooling. The solder scraping section is correspondingly arranged with the solder pot, and the solder scraping section is located on the side of the solder pot away from the tooling flipping section.

[0014] As an improved technical solution, the tooling flipping assembly includes a fourth mounting bracket fixedly installed on the mounting base plate. A flipping plate driven by a flipping cylinder is hingedly installed on the fourth mounting bracket. A flipping guide rail is fixedly installed on the flipping plate. When the tooling is in the material receiving state, the two ends of the flipping guide rail are respectively connected to two sections of the first fixed guide rail. The flux container has a double-layered tank structure, including an inner box and an outer box. The inner box is located inside the outer box, and the upper edge of the opening of the inner box is lower than the upper edge of the opening of the outer box. The bottom of the inner box is connected to a flux delivery pipe, and the bottom of the outer box is connected to a flux return pipe. The solder pot has a solder holding tank and a solder dross discharge port. The solder holding tank is installed near the tooling flipping part, the solder dross discharge port is installed near the solder scraping part, and a solder dross collection box is provided directly below the solder dross discharge port. The solder scraping unit includes a fifth mounting bracket, on which a solder scraping mounting seat driven by a solder scraping cylinder is slidably mounted along the Y-axis direction. A solder scraping rod mounting block is hingedly mounted on the solder scraping mounting seat, and a solder scraping rod is fixedly mounted on the solder scraping rod mounting block. The solder scraping rod is located above the solder pot, and the end of the solder scraping rod near the solder pot has a solder scraping part.

[0015] As an improved technical solution, a first hinge seat is fixedly installed on the fourth mounting bracket, the flipping plate is located above the first hinge seat, and a second hinge seat is fixedly installed on one side of the flipping plate. The second hinge seat is hingedly connected to the first hinge seat. The flipping cylinder is fixedly installed on the fourth mounting bracket along the Z-axis direction, and a connecting rod is provided between the flipping cylinder and the flipping plate. One end of the connecting rod is hingedly connected to the piston rod end of the flipping cylinder, and the other end of the connecting rod is hingedly connected to the bottom of the flipping plate. A second buffer is also fixedly installed on the fourth mounting bracket, which is respectively provided at both ends of the flipping plate. And / or, a box mounting base is fixedly installed on the mounting base plate, the flux container is slidably installed on the box mounting base along the Z-axis direction, and an adjusting screw for adjusting the height of the flux container is rotatably installed on the box mounting base; And / or, a solder pot mounting plate is installed on the mounting base plate, the solder pot and the solder dross collection box are both fixedly installed on the solder pot mounting plate, and a heating rod is provided at one end of the solder pot, the heating rod extending into the solder pot; Alternatively, one end of the squeegee mounting block is hinged to the squeegee mounting base, and the other end of the squeegee mounting block is fixedly connected to the squeegee. A cam for resetting and lifting the squeegee is also rotatably mounted on the fifth mounting bracket. The cam is located between the squeegee mounting block and the solder pot, and the cam is located below the squeegee. The bottom surface of the squeegee abuts against the cam.

[0016] After adopting the above technical solution, the beneficial effects of the present invention are: This automatic wire stripping and soldering device features a compact and rationally designed overall structure with high integration, enabling multi-process collaborative operation. During operation, the wire to be processed is first positioned and clamped onto a transfer fixture. The positioning and clamping structure of the transfer fixture ensures the wire is stably positioned, preventing issues such as wire deviation, movement, and core wire bending during processing. The fixture conveying mechanism automatically transports the transfer fixture containing the wire to the fixture guide sliding mechanism. Then, the fixture feeding mechanism continuously and orderly feeds the transfer fixtures step by step, allowing each transfer fixture to slide smoothly along the fixture guide sliding mechanism. According to the preset processing rhythm, each transfer fixture is accurately transported to the processing position of each process step in sequence.

[0017] After the transfer tooling is conveyed into the tooling guide sliding mechanism, it is precisely and orderly stopped at the wire sequence detection station by the tooling stop mechanism. The wire sequence detection mechanism then identifies and detects the wire sequence of the core wires inside the wire body. If the wire sequence detection determines that the wire is defective due to incorrect wire sequence or missing cores, the device triggers an alarm, reminding staff to promptly handle the defective product, effectively preventing it from flowing into subsequent processing steps and reducing material waste and ineffective processing. If the wire sequence detection determines that the wire is qualified, the tooling stop mechanism releases its stop limit on the transfer tooling, and the tooling conveying mechanism continues to convey the transfer tooling to the core wire straightening station. The core wire straightening mechanism straightens and corrects the core wires, ensuring consistency in subsequent cutting, decapping, and soldering processes. After the core wire straightening and correction are completed, the tooling conveying machine... The transfer tooling is moved to the zero-cut and cap-stripping station. The zero-cut and cap-stripping mechanism first performs fixed-length zero-cutting on each core wire, cutting each core wire to the specified size, and then strips the insulation caps from the ends of the core wires, completely exposing the internal metal conductors. After that, the tooling transfer mechanism moves the transfer tooling to the soldering process. The soldering process has two independent stations: flux application and soldering. The two stations can be operated in parallel and alternately. The transfer tooling first completes the flux wetting treatment of the core wire conductor at the flux application station through the soldering mechanism, ensuring that the conductor surface is evenly coated with flux. Then, when the tooling is moved to the soldering station by the tooling transfer mechanism, the soldering is completed. Moreover, while the soldering mechanism is performing the soldering operation on the wires on the current transfer tooling, it is simultaneously applying flux to the wires on the next transfer tooling. The two processes do not interfere with each other and are carried out synchronously and alternately.

[0018] This automatic wire stripping and soldering device enables a fully integrated production line operation encompassing core wire sequence detection, core wire straightening and correction, core wire length cutting, insulation cap stripping, core wire flux impregnation, and automatic soldering. The processes are seamlessly connected and precisely coordinated, eliminating the traditional manual handling and separate equipment processing methods. This fully automated operation significantly reduces labor intensity and costs, completely avoiding processing errors and wire contamination caused by manual clamping and handling. It also significantly improves the precision, consistency, and yield of wire stripping and soldering, meeting the demands of large-scale, continuous, high-precision, and high-yield automated production of USB wire harness assemblies, demonstrating strong practicality. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the automatic wire decapping and soldering device of the present invention; Figure 2 This is another three-dimensional structural schematic diagram of the automatic wire decapping and soldering device of the present invention; Figure 3 This is another three-dimensional structural schematic diagram of the automatic wire decapping and soldering device of the present invention; Figure 4 This is a schematic diagram of the tooling conveying mechanism of the present invention; Figure 5 This is a schematic diagram of the transfer tooling of the present invention; Figure 6 This is an exploded structural diagram of the transfer tooling of the present invention; Figure 7 This is a schematic diagram of the structure of the floating clamping block of the present invention; Figure 8 This is a three-dimensional structural diagram of the tooling guide sliding mechanism and the tooling delivery mechanism of the present invention being installed together. Figure 9 This is another three-dimensional structural diagram of the tooling guide sliding mechanism and tooling delivery mechanism of the present invention being installed together. Figure 10 This is a three-dimensional structural schematic diagram of the tooling guide sliding mechanism of the present invention; Figure 11 This is another three-dimensional structural schematic diagram of the tooling guide sliding mechanism of the present invention; Figure 12 This is a schematic diagram of the tooling delivery mechanism of the present invention; Figure 13 This is a schematic diagram of the tooling delivery assembly of the present invention; Figure 14 This is a schematic diagram of the structure in which the tooling stop mechanism and the line sequence detection mechanism of the present invention are installed together. Figure 15 This is a schematic diagram of the core wire straightening mechanism of the present invention; Figure 16 This is a schematic diagram of the zero-cutting cap-stripping mechanism of the present invention; Figure 17 This is a partial three-dimensional structural schematic diagram of the zero-cutting cap-stripping mechanism of the present invention; Figure 18 This is a three-dimensional structural schematic diagram of the tin-dipping mechanism of the present invention; Figure 19 This is another three-dimensional structural schematic diagram of the tin-dipping mechanism of the present invention; Figure 20 This is a schematic diagram of the installation structure of the flux container of the present invention on the box mounting base; Figure 21 This is a schematic diagram of the assembly structure of the solder pot and the solder scraper of the present invention. Figure 22 This is a schematic diagram of the tin-scraping assembly of the present invention; Figure 23 This is an exploded structural diagram of the part of the solder scraper rod mounted on the solder scraper mounting base of the present invention. Attached label: 1 - Mounting base plate; 2-Transfer fixture; 21-Transfer base; 211-Wire support; 212-Slide groove; 213-Card slot; 22-Wire guide plate; 23-Fixed wire clamping block; 24-Floating wire clamping block; 241-Hinged mounting part; 242-Wire clamping part; 243-Spring abutment part; 244-Manual pressing part; 25-First compression spring; 3-Tooling conveyor mechanism; 31-Conveyor frame; 32-Tooling conveyor motor; 33-Tooling conveyor belt; 34-Limit stop bar; 4-Tooling guide sliding mechanism; 41-First fixed guide rail; 411-Sliding guide part; 412-First support edge; 42-Second fixed guide rail; 421-Second support edge; 43-First fixed seat; 44-Second fixed seat; 5-Tooling feeding mechanism; 51-Fixed slide; 52-Linear guide rail; 53-Guide rail follower seat; 54-Tooling feeding assembly; 541-Pulling block mounting seat; 542-Tooling pulling block; 5421-Tooling feeding part; 543-Second compression spring; 55-Tooling feeding cylinder; 56-Connecting block; 57-First buffer; 58-First limit screw; 6-Tooling stop mechanism; 61-First mounting bracket; 62-Front stop cylinder; 63-Rear stop cylinder; 64-Front stop block; 65-Rear stop block; 7-Line sequence detection mechanism; 71-Upright plate; 72-Camera mounting plate; 73-Detection camera; 74-Light source; 75-Lens; 8-Core wire straightening mechanism; 81-Second mounting bracket; 82-Wire pulling cylinder; 83-First sliding bracket; 84-Wire clamping cylinder; 85-Wire pulling knife holder; 86-Wire pulling knife; 87-Second limit screw; 88-First slide rail; 89-First slider; 9-Zero-cutting cap stripping mechanism; 91-Third mounting bracket; 92-Cap stripping electric cylinder; 93-Second sliding bracket; 94-Cap stripping motor; 95-Wire stripper holder; 96-Wire stripper; 97-Second slide rail; 98-Second slider; 99-Positive and negative lead screws; 910-Lead screw nut; 911-Cap receiving box; 912-Cap conveying pipe; 10- Soldering mechanism; 101-Fourth mounting bracket; 102-Tilting cylinder; 103-Tilting plate; 104-Tilting guide rail; 105-First hinge seat; 106-Second hinge seat; 107-Connecting rod; 108-Second buffer; 109-Fluoride container; 1091-Inner box; 1092-Outer box; 1010-Fluoride delivery pipe; 1011-Fluoride return pipe; 1012-Box mounting base; 1013-Adjusting screw; 1014-Sliding mounting plate; 1015 - Solder pot mounting plate; 1016- Support bracket; 1017- Solder pot; 10171- Solder holding tank; 10172- Solder dross discharge port; 1018- Solder dross collection box; 1019- Heating rod; 1020- Fifth mounting bracket; 1021- Solder scraper cylinder; 1022- Solder scraper mounting base; 1023- Solder scraper rod mounting block; 1024- Solder scraper rod; 10241- Solder scraper part; 1025- Third slide rail; 1026- Third slider; 1027- Protective cover plate; 1028- Cam; 11-Wire body. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0023] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0024] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0025] like Figures 1 to 3 As shown in the figure, the present invention provides an automatic wire decapping and soldering device, including a mounting base plate 1, on which a tooling guide sliding mechanism 4 and a tooling conveying mechanism 5 are provided. The tooling guide sliding mechanism 4 is provided with a plurality of transfer tooling 2, and a tooling conveying mechanism 3 is provided upstream of the tooling guide sliding mechanism 4. One end of the tooling guide sliding mechanism 4 is connected to the unloading end of the tooling conveying mechanism 3. Each transfer tooling 2 can independently carry a single wire, and the wire body 11 can be positioned and clamped on the transfer tooling 2 respectively. The transfer tooling 2 serves as the core carrier for the entire process of carrying, positioning and clamping the wire body 11, and can achieve continuous step-by-step transfer conveying under the push of the tooling conveying mechanism 5.

[0026] like Figures 1 to 3 As shown, the mounting base plate 1 is sequentially equipped with a wire sequence detection mechanism 7, a core wire straightening mechanism 8, a zero-cutting and cap-stripping mechanism 9, and a soldering mechanism 10 along the conveying direction of the transfer fixture 2. A fixture stop mechanism 6 is also provided between the wire sequence detection mechanism 7 and the fixture guide sliding mechanism 4. This automatic wire cap stripping and soldering device is mainly used for the wire pre-processing of USB wire harness assemblies. It can automatically and continuously complete the entire pre-processing process before USB wire harness assembly, including wire sequence detection, core wire straightening and correction, core wire zero-cutting, core wire end insulation cap stripping, core wire flux wetting, and automatic soldering. It is suitable for large-scale, high-precision, fully automatic integrated production line production of multiple specifications of wires such as USB 2.0, USB 3.2, and Type-C, with a high degree of automation.

[0027] like Figure 5 and Figure 6As shown, the transfer fixture 2, as the core carrier for positioning, clamping, and transferring wires between processes, is a key component ensuring the consistency of processing benchmarks across multiple processes. It includes a transfer base 21, with a wire guide plate 22 fixedly mounted at one end. The wire guide plate 22 has several evenly arranged wire guide teeth, forming core wire limiting grooves between adjacent teeth. Each core wire of the wire body 11 is arranged corresponding to its respective core wire limiting groove. The wire guide teeth separate adjacent core wires, thereby enabling the wire guide plate 22 to control the wire body 11. The effective straightening of each core wire avoids problems such as crossover, tangling, misalignment, and offset, ensuring that each core wire is arranged in an orderly manner. The other end of the transfer base 21 is provided with a wire clamping component, which clamps and fixes the wire body 11. A wire support part 211 is provided between the wire clamping component and the straightening plate 22. The wire support part 211 is an integrally formed structure of the transfer base 21, which effectively supports the wire body 11, keeping the wire body 11 in a horizontal and orderly state.

[0028] like Figure 5 and Figure 6 As shown, the wire clamping assembly includes a fixed clamping block 23, a floating clamping block 24, and a first compression spring 25. The fixed clamping block 23 is fixedly installed on the transfer base 21, and a first clamping groove adapted to the outer diameter of the wire body 11 is opened on one side of the top of the fixed clamping block 23. The floating clamping block 24 is hingedly installed on the transfer base 21, and a second clamping groove adapted to the outer diameter of the wire body 11 is opened on the side of the floating clamping block 24 facing the fixed clamping block 23. The second clamping groove is correspondingly set with the first clamping groove. When the first clamping groove and the second clamping groove are engaged, a complete circular clamping hole is formed. The first compression spring 25 is located between the floating clamping block 24 and the transfer base 21, and under the action of the first compression spring 25, the floating clamping block 24 is always automatically set against the fixed clamping block 23 under normal conditions. When positioning and clamping the wire body 11 on the transfer fixture 2, manually pry the floating clamping block 24 away from the fixed clamping block 23, then place the wire body 11 at the first clamping groove position, and then release the floating clamping block 24. Under the action of the first compression spring 25, the floating clamping block 24 automatically resets and clamps the wire body 11 between the floating clamping block 24 and the fixed clamping block 23. The circular clamping hole formed by the first clamping groove and the second clamping groove achieves a firm clamping and limiting of the wire body 11. In this way, the stable clamping of the wire body 11 can be completed. The operation is simple and convenient.

[0029] Specifically, such as Figures 5 to 7As shown, the floating wire clamping block 24 includes an integrally formed hinged mounting part 241, a wire clamping part 242, a spring abutment part 243, and a manual pressing part 244. The hinged mounting part 241 is hingedly mounted on the transfer base 21. The wire clamping part 242 has a second wire clamping groove. The spring abutment part 243 is located between the manual pressing part 244 and the wire clamping part 242. The two ends of the first compression spring 25 abut against the transfer base 21 and the spring abutment part 243, respectively. When clamping the wire body 11, a downward force is applied to the manual pressing part 244, which can separate the floating wire clamping block 24 from the fixed wire clamping block 23. The wire clamping assembly uses an elastic clamping method to position and clamp the wire body 11. The clamping force is gentle and constant, which can completely limit the movement and displacement of the wire during the processing and ensure processing stability. It can also avoid the problem of excessive rigid clamping pressure damaging the wire sheath and squeezing the core wire, causing deformation. The clamping operation is simple and convenient, and the clamping is firm, safe and reliable.

[0030] like Figure 1 and Figure 4 As shown, the tooling conveying mechanism 3 includes a conveying frame 31 fixedly connected to the mounting base 1. A tooling conveying motor 32 is fixedly installed on the conveying frame 31, and a tooling conveyor belt 33 driven by the tooling conveying motor 32 is wound around the conveying frame 31. Two parallel limit bars 34 are also fixedly installed on the conveying frame 31, forming a limit channel that matches the transfer base 21, thus preventing deviation during the conveying of the transfer tooling 2. Through this tooling conveying mechanism 3, the transfer tooling 2 can be effectively and accurately conveyed to the feeding end of the tooling guide sliding mechanism 4.

[0031] like Figures 8 to 11 As shown, the tooling guide sliding mechanism 4 includes a first fixed guide rail 41 and a second fixed guide rail 42. The first fixed guide rail 41 has two sections along its length. The two sections of the first fixed guide rail 41 are fixedly installed on the mounting base plate 1 along the X-axis direction through the first fixed seat 43. The installation space of the soldering mechanism 10 is reserved between the two sections of the first fixed guide rail 41. The soldering mechanism 10 is installed between the two sections of the first fixed guide rail 41. The second fixed guide rail 42 is fixedly installed on the mounting base plate 1 along the X-axis direction through the second fixed seat 44. The second fixed guide rail 42 is arranged parallel to the first fixed guide rail 41. The transfer tooling 2 is slidably installed on the first fixed guide rail 41 and the second fixed guide rail 42.

[0032] To achieve smooth guiding and conveying of the transfer tooling 2, such as Figure 10 and Figure 11As shown, the first fixed guide rail 41 has an integrally formed sliding guide part 411, and the bottom of the transfer base 21 has a groove 212 adapted to the sliding guide part 411. The transfer base 21 is slidably mounted on the first fixed guide rail 41 through the groove 212 and the sliding guide part 411. The first fixed guide rail 41 has an integrally formed first support edge 412 on the side near the second fixed guide rail 42, and the second fixed guide rail 42 has an integrally formed second support edge 421 on the side near the first fixed guide rail 41. The bottom surface of the transfer base 21 abuts against the first support edge 412 and the second support edge 421, and the other end face of the transfer base 21 abuts against the inner surface of the second fixed guide rail 42. In this way, the transfer base 21 is effectively supported and precisely limited, so that the transfer fixture 2 slides smoothly without shaking, deviation, or jamming, providing a reliable guarantee for subsequent high-precision inspection, straightening, zero-cutting and stripping of wires, and soldering processing.

[0033] like Figure 8 , Figure 9 and Figure 12 As shown, the tooling conveying mechanism 5 is a drive unit for the orderly step-by-step conveying of each transfer tooling 2. It includes a fixed slide 51 fixedly installed on the mounting base 1. A linear guide rail 52 is slidably installed on the fixed slide 51 along the X-axis direction. Several guide rail follower seats 53 are fixedly installed on the linear guide rail 52 along its length direction. Tooling conveying components 54 are respectively provided on the guide rail follower seats 53. The tooling conveying components 54 are all located between the first fixed guide rail 41 and the second fixed guide rail 42. A tooling conveying cylinder 55 is fixedly installed on the mounting base 1 along the X-axis direction. A connecting block 56 is installed at the end of the piston rod of the tooling conveying cylinder 55. The connecting block 56 is fixedly connected to one of the guide rail follower seats 53.

[0034] Specifically, such as Figure 8 As shown, the tooling feeding cylinder 55 is located outside the second fixed base 44. The second fixed base 44 has a strip-shaped clearance hole. The connecting block 56 passes through the strip-shaped clearance hole and is fixedly connected to any one of the guide rail follower seats 53. When the tooling feeding cylinder 55 works, it drives the linear guide rail 52 to slide along the X-axis direction through the connecting block 56 and the guide rail follower seat 53, thereby driving each tooling feeding component 54 to move synchronously.

[0035] like Figure 8As shown, the mounting base plate 1 is equipped with a first buffer 57 and a first limiting screw 58 corresponding to the connecting block 56. The first buffer 57 absorbs the kinetic energy at the end of the stroke of the tooling feeding cylinder 55, effectively absorbing the rigid impact when the cylinder stops, avoiding rigid impact on the end cover, thereby protecting the structure of the tooling feeding cylinder 55, reducing noise and extending service life. The first limiting screw 58 is used to precisely limit the maximum stroke of the circulating tooling 2, ensuring that the displacement of the circulating tooling 2 is uniform and the station positioning is accurate each time.

[0036] like Figure 12 and Figure 13 As shown, the tooling feeding assembly 54 includes a tooling mounting base 541, a tooling tooling block 542, and a second compression spring 543. The tooling mounting base 541 is fixedly mounted on the guide rail follower seat 53. One end of the tooling tooling block 542 is hinged to the tooling mounting base 541, and the other end of the tooling tooling block 542 is provided with an integrally formed tooling feeding part 5421. The tooling feeding part 5421 has an inclined downward pressure guide surface. Corresponding slots 213 are provided on both sides of the transfer base 21. The second compression spring 543 is located between the tooling tooling block 542 and the tooling mounting base 541, and both ends of the second compression spring 543 are respectively connected to the tooling feeding part 5421 and the tooling mounting base 541. The provided tooling conveying assembly 54 adopts a unidirectional, automatic avoidance, and elastic reset structure. When the tooling conveying cylinder 55 drives each tooling conveying assembly 54 to move along the conveying direction of the circulating tooling 2, the tooling pusher 542 abuts against the slot 213 on one side of the circulating base 21 through the tooling conveying part 5421, thereby conveying the circulating tooling 2 and moving each circulating tooling 2 forward. When the tooling conveying cylinder 55 drives each tooling conveying assembly 54 to move in the opposite direction along the conveying direction of the circulating tooling 2, the tooling conveying assembly 54 moves forward. When the tooling is slid back to its original position, as it passes the subsequent transfer base 21, the transfer base 21 can automatically press down the tooling feeding part 5421 of the tooling block 542 by pressing down the guide surface. The second compression spring 543 is compressed, so that the tooling feeding part 5421 of the tooling block 542 flips downward to avoid the transfer tooling 2 from moving backward. After the tooling feeding assembly 54 returns to its original position, the second compression spring 543 automatically pushes the tooling block 542 back to its original position, ready for the next feeding operation. This tooling feeding assembly 54 can realize unidirectional step feeding of the transfer tooling 2, and has a simple structure and strong practicality.

[0037] like Figure 14As shown, the tooling stop mechanism 6 includes a first mounting bracket 61 fixedly mounted on the mounting base plate 1. A front stop cylinder 62 and a rear stop cylinder 63 are sequentially mounted on the first mounting bracket 61 along the conveying direction of the transfer tooling 2. Both the front stop cylinder 62 and the rear stop cylinder 63 are fixedly mounted on the first mounting bracket 61 along the Z-axis direction. A front stop block 64 is fixedly mounted on the piston rod end of the front stop cylinder 62, and a rear stop block 65 is fixedly mounted on the piston rod end of the rear stop cylinder 63. The tooling stop mechanism 6 adopts a front and rear dual-cylinder combined stop structure. The orderly limiting, precise stopping, and orderly release of the transfer tooling 2 are achieved through the independent lifting and lowering actions of the front stop cylinder 62 and the rear stop cylinder 63.

[0038] Understandably, the distance between the front stop 64 and the rear stop 65 is adapted to or greater than the width of the transfer base 21. The front stop 64 and the rear stop 65 position and stop the transfer fixture 2 by abutting against the slot 213 on the other side of the transfer base 21. During operation, when the transfer base 21 abuts against the rear stop 65, the current transfer fixture 2 is in the wire sequence detection position, and the wire sequence of the wire body 11 can be detected. After the detection is completed, if the current wire body 11 is a qualified product, the rear stop will stop. Cylinder 63 drives the rear stop 65 to lift, and the tooling conveying mechanism 5 moves the current transfer tooling 2 to the next process for core wire straightening. Then, the rear stop cylinder 63 drives the rear stop 65 to descend and reset. After that, the front stop cylinder 62 drives the front stop 64 to lift. When the next transfer tooling 2 moves to the position of the wire sequence detection against the rear stop 65, the front stop cylinder 62 drives the front stop 64 to descend and reset to block the subsequent transfer tooling 2, so as to avoid the subsequent tooling from affecting the wire sequence detection of the current wire body 11 to be tested.

[0039] like Figure 14 As shown, the wire sequence detection mechanism 7 includes a vertical plate 71 fixedly mounted on a first mounting bracket 61. A camera mounting plate 72 is fixedly mounted on the top of the vertical plate 71. A detection camera 73 and a light source 74 are fixedly mounted on the camera mounting plate 72. A lens 75 is mounted on the detection camera 73, and the light source 74 is located directly below the lens 75. After the transfer fixture 2 arrives at the wire sequence detection station, the wire sequence detection mechanism 7 transmits the detection results to the device's algorithm system in real time through image acquisition and visual recognition. The system performs intelligent comparison and analysis using preset standard wire sequence templates, core wire quantity, arrangement order, color differentiation, and other parameters to automatically and accurately determine whether the current wire material has various incoming material defects such as incorrect core wire sequence, missing core wires, and twisted or overlapping core wires.

[0040] like Figure 15As shown, the core wire straightening mechanism 8 includes a second mounting bracket 81 fixedly mounted on the mounting base plate 1. A first sliding bracket 83 driven by a wire-pulling cylinder 82 is slidably mounted on the second mounting bracket 81 along the Y-axis direction. A wire-clamping cylinder 84 is fixedly mounted on the first sliding bracket 83 along the Z-axis direction. Wire-pulling knife holders 85 are fixedly mounted on the slide block of the wire-clamping cylinder 84, and wire-pulling knives 86 are fixedly mounted on each of the wire-pulling knife holders 85. The two wire-pulling knives 86 are correspondingly arranged, and a second limit screw 87 is threaded onto one of the wire-pulling knife holders 85. After the transfer fixture 2 is transported to the core wire straightening station, the wire-clamping cylinder 84 operates, driving the two wire-pulling knives 86 to clamp the core wire. Then, the wire-pulling cylinder 82 operates, causing the first sliding bracket 83 to move away from the transfer fixture 2, thereby straightening the core wire through the wire-pulling knife 86, ensuring the uniformity of the processing benchmark for subsequent fixed-length cutting, cap stripping, and soldering processes.

[0041] To achieve smooth sliding installation of the first sliding bracket 83 on the second mounting bracket 81, such as Figure 15 As shown, a first slide rail 88 is fixedly installed on the second mounting bracket 81 along the Y-axis direction, and a first slider 89 is slidably installed on the first slide rail 88. The first slider 89 is fixedly connected to the first sliding bracket 83. The first sliding bracket 83 is slidably installed on the second mounting bracket 81 through the first slide rail 88 and the first slider 89. The cable pull cylinder 82 is fixedly installed on the second mounting bracket 81, and the piston rod end of the cable pull cylinder 82 is connected to the first sliding bracket 83.

[0042] like Figure 15 As shown, the wire puller 86 has a first strip-shaped hole. The wire puller 86 is fixedly installed on the wire puller base 85 by a positioning bolt passing through the first strip-shaped hole. Loosening the positioning bolt allows the wire puller 86 to be adjusted, thereby fine-tuning the distance between the two wire pullers 86 in the wire pulling state according to the outer diameter of the core wire. After adjustment, the positioning bolt can be tightened again. In this way, the straightening and correction of core wires of different specifications can be achieved, which is highly versatile.

[0043] like Figure 16 and Figure 17As shown, the zero-cutting cap stripping mechanism 9 includes a third mounting bracket 91 fixedly mounted on the mounting base plate 1. A cap stripping electric cylinder 92 is fixedly mounted on the third mounting bracket 91 along the Y-axis direction. A second sliding bracket 93 is fixedly connected to the slide of the cap stripping electric cylinder 92. A wire stripping knife holder 95 driven by a cap stripping motor 94 is slidably mounted on the second sliding bracket 93 along the Z-axis direction. Two wire stripping knife holders 95 are provided, and each of the two wire stripping knife holders 95 is fixedly mounted with a wire stripping knife 96. The two wire stripping knives 96 are arranged correspondingly, and each of the two wire stripping knives 96 has several stripping teeth at its stripping end. Under the drive of the cap stripping motor 94, the two wire stripping knives 96 slide towards each other / away from each other. The structural design of the wire stripping knife 96 can effectively complete the fixed-length cutting of the core wire and the stripping of the insulation cap without scratching or cutting the internal metal conductor, effectively ensuring the integrity and conductivity of the core wire conductor.

[0044] To achieve smooth sliding installation of the wire stripper holder 95 on the second sliding bracket 93, such as Figure 17 As shown, a second slide rail 97 is fixedly installed on the second sliding bracket 93 along the Z-axis direction, and a second slider 98 is slidably installed on the second slide rail 97. The second slider 98 is fixedly connected to the wire stripper holder 95. The wire stripper holder 95 is slidably installed on the second sliding bracket 93 through the second slide rail 97 and the second slider 98.

[0045] like Figure 16 and Figure 17 As shown, a positive and negative lead screw 99 is rotatably mounted on the second sliding bracket 93 along the Z-axis. The threads at both ends of the positive and negative lead screw 99 have opposite directions. A wire stripping motor 94 is fixedly mounted on the top of the second sliding bracket 93, and the output shaft of the wire stripping motor 94 is connected to the top end of the positive and negative lead screw 99. A lead screw nut 910 is fixedly mounted on each of the two wire stripping knife holders 95, and the two wire stripping knife holders 95 are respectively threaded to the two ends of the positive and negative lead screw 99 through the lead screw nut 910. When the wire stripping motor 94 operates, it drives the positive and negative lead screw 99 to rotate, thereby causing the two wire stripping knife holders 95 to slide towards each other or away from each other, realizing the two wire stripping knives 96 clamping towards each other or separating away from each other.

[0046] like Figure 16 and Figure 17As shown, a wire cap receiving box 911 is also fixedly installed on the second sliding bracket 93. The wire cap receiving box 911 is located on the side of the wire stripper 96 away from the tooling guide sliding mechanism 4, and the wire cap receiving box 911 is located between the two wire strippers 96. The end of the wire cap receiving box 911 near the wire stripper 96 has a core wire insertion port. The bottom of the wire cap receiving box 911 is connected to a wire cap conveying pipe 912, which is connected to a negative pressure suction device. The negative pressure suction device can be a commercially available product. The waste material stripped from the core wire will fall into the wire cap receiving box 911 and will eventually be sucked away by the wire cap conveying pipe 912 and uniformly recycled. In this way, the automatic collection and centralized recycling of stripping waste material is realized.

[0047] Specifically, a receiving box mounting base is fixedly installed on the second sliding bracket 93. The receiving box mounting base has a second strip-shaped hole. The receiving box mounting base is fixedly installed on the second sliding bracket 93 by a positioning bolt passing through the second strip-shaped hole. The wire cap receiving box 911 is fixedly installed on the receiving box mounting base. Loosening the positioning bolt allows for fine adjustment of the wire cap receiving box 911 to ensure that when stripping the core wire of the wire body 11, the core wire of the wire body 11 can be accurately inserted into the wire cap receiving box 911 through the core wire insertion port.

[0048] The zero-cutting and cap-stripping mechanism 9, based on the process steps of "first zero-cutting at a fixed length, then stripping the insulation cap", can perform zero-cutting at a fixed length and stripping the end insulation caps of multiple core wires of the wire, thereby standardizing and unifying the exposed length of the core wires, which is the key to ensuring the consistency of subsequent welding. When the transfer fixture 2 delivers the wire to the zero-cut and cap-stripping station, the cap-stripping electric cylinder 92 operates, driving the second sliding bracket 93 to move forward as a whole. This allows each core wire of the wire to extend into the clamping area of ​​the two stripping blades 96, and locks the feed position according to the preset fixed-length zero-cut dimension. Then, the cap-stripping motor 94 drives the positive and negative lead screws 99 to rotate, causing the upper and lower stripping blade seats 95 to close rapidly towards each other. This allows the two stripping blades 96 to perform fixed-length zero-cutting operations on the core wires with uneven protrusion lengths according to the preset zero-cut position, uniformly cutting all core wires to the preset standard size, ensuring that the protrusion length of each core wire is completely consistent, and eliminating the length deviation of the incoming core wires. After completing the fixed-length zero-cutting process, the cap-stripping motor 94 drives the two stripping blades 96 to separate, and the cap-stripping electric cylinder 92 drives... The second sliding bracket 93 moves forward to the required length of insulation cap removal. Then, the stripping motor 94 drives the lead screw 99 to make slight adjustments to the two stripping blades 96, ensuring that the blades precisely engage the outer insulation layer of the core wire end, with the bottom of the blades precisely touching the boundary between the insulation layer and the metal conductor. This ensures a firm grip on the insulation layer without damaging the internal conductor. Next, the stripping cylinder 92 moves the second sliding bracket 93 slightly backward, using the stripping blades 96 to smoothly peel off the pre-set length of insulation cap from the core wire end, exposing the metal conductor. Finally, the stripping motor 94 drives the two stripping blades 96 to separate in opposite directions, and the stripping cylinder 92 drives the second sliding bracket 93 to reset, completing a single, zero-cut stripping operation. The stripped insulation caps automatically fall into the rear cap receiving box 911. The cap conveying pipe 912, connected to the negative pressure suction device, promptly sucks away the stripped caps from the receiving box 911 for unified collection. This step-by-step cutting and stripping process logic can precisely control the core wire zero-cut length, stripping depth, and conductor exposed size, ensuring that the processing specifications of each core wire of each wire are highly uniform. This provides a precise dimensional reference and reliable guarantee for the uniform wetting of flux and uniform adhesion of solder layer in the subsequent process.

[0049] like Figures 18 to 22 As shown, the soldering mechanism 10 includes a tooling flipping section, a flux container 109, a solder pot 1017, and a solder scraping section. The tooling flipping section is located between two sections of the first fixed guide rail 41. The flux container 109 and the solder pot 1017 are both located on the side of the tooling flipping section away from the tooling guide sliding mechanism 4. The flux container 109 and the solder pot 1017 are arranged sequentially along the conveying direction of the transfer tooling 2, respectively corresponding to the flux wetting station and the soldering station. The solder scraping section is correspondingly arranged with the solder pot 1017, and the solder scraping section is located on the side of the solder pot 1017 away from the tooling flipping section, and is used to scrape off the tin oxide dross on the top of the solder.

[0050] like Figure 18 and Figure 19 As shown, the tooling flipping assembly includes a fourth mounting bracket 101 fixedly mounted on the mounting base plate 1. A flipping plate 103 driven by a flipping cylinder 102 is hingedly mounted on the fourth mounting bracket 101. A flipping guide rail 104 is fixedly mounted on the flipping plate 103. When the tooling is in the material receiving state, the two ends of the flipping guide rail 104 are respectively connected to two sections of the first fixed guide rail 41.

[0051] Specifically, such as Figure 18 As shown, a first hinge seat 105 is fixedly installed on the fourth mounting bracket 101. The flip plate 103 is located above the first hinge seat 105, and a second hinge seat 106 is fixedly installed on one side of the flip plate 103. The second hinge seat 106 is hingedly connected to the first hinge seat 105. The flip cylinder 102 is fixedly installed on the fourth mounting bracket 101 along the Z-axis direction, and a connecting rod 107 is provided between the flip cylinder 102 and the flip plate 103. One end of the connecting rod 107 is hingedly connected to the piston rod end of the flip cylinder 102, and the other end of the connecting rod 107 is hingedly connected to the bottom of the flip plate 103. When the flipping cylinder 102 operates, it drives the flipping plate 103 to flip, switching the flipping guide rail 104 between the receiving state and the soldering state. There are always two transfer fixtures 2 on the flipping guide rail 104, positioned at the flux-soaking station and the solder-soaking station respectively. When the flipping cylinder 102 drives the flipping guide rail 104 to the soldering state, the wires on the two transfer fixtures 2 are respectively coated with flux and solder. The wires coated with flux will be soldered in the next flipping operation. During operation, in the receiving state, both ends of the flipping guide rail 104 are precisely aligned with the two front and rear sections of the first fixed guide rail 41, ensuring that the transfer fixtures 2 can be smoothly transferred to the flipping guide rail 104. Then, the flipping cylinder 102 operates, driving the flipping guide rail 104 to flip 90 degrees. After flipping to the correct position, the wire core end can be precisely immersed into the corresponding tank, completing the flux wetting and soldering processes in an orderly manner.

[0052] like Figure 18 and Figure 19 As shown in the figure, a second buffer 108 is also fixedly installed on the fourth mounting bracket 101, which is respectively provided at both ends of the flip plate 103. The second buffer 108 absorbs the kinetic energy of motion at the end of the stroke of the flip cylinder 102, effectively absorbing the rigid impact when the flip cylinder 102 stops.

[0053] like Figure 19 and Figure 20As shown, the flux container 109 has a double-layer tank structure, including an inner container 1091 and an outer container 1092. The inner container 1091 is located inside the outer container 1092. The inner container 1091 is used to hold liquid flux, and the upper edge of the opening of the inner container 1091 is lower than the upper edge of the opening of the outer container 1092. The bottom of the inner container 1091 is connected to a flux delivery pipe 1010, which is used to fill flux into the inner container 1091. The bottom of the outer container 1092 is connected to a flux return pipe 1011. During the process of the wire being immersed in flux, the flux in the inner container 1091 overflows into the outer container 1092 and is finally returned through the flux return pipe 1011, realizing the recycling and reuse of flux. In this way, automatic flux replenishment and circulating supply can be achieved.

[0054] like Figure 19 and Figure 20 As shown, a housing mounting base 1012 is fixedly mounted on the mounting base 1. The flux container 109 is slidably mounted on the housing mounting base 1012 along the Z-axis direction. An adjusting screw 1013 is rotatably mounted on the housing mounting base 1012 to adjust the height of the flux container 109. The height of the flux container 109 can be flexibly adjusted by adjusting the screw 1013. In this way, the depth of the core wire metal conductor immersed in the flux can be flexibly adjusted according to different wire core lengths and different immersion depth requirements.

[0055] Specifically, a sliding limiting groove is provided on the box mounting base 1012 along the Z-axis direction, and a sliding mounting plate 1014 is slidably installed in the sliding limiting groove. An adjusting screw 1013 is rotatably installed on the box mounting base 1012, and the end of the adjusting screw 1013 is threadedly connected to the sliding mounting plate 1014. A flux container 109 is fixedly installed on the sliding mounting plate 1014.

[0056] like Figure 18 , Figure 19 and Figure 21As shown, a solder pot mounting plate 1015 is mounted on the mounting base 1, and a support bracket 1016 is fixedly mounted on the solder pot mounting plate 1015. A solder pot 1017 is fixedly mounted on the support bracket 1016. The solder pot 1017 has a solder holding tank 10171 and a solder dross discharge port 10172. The solder holding tank 10171 is installed near the tooling flipping part, and the solder dross discharge port 10172 is installed near the solder scraping part. A dross collection box 1018 is located directly below 72 and is fixedly installed on the solder pot mounting plate 1015. During operation, the solder holding tank 10171 contains molten liquid solder. When the oxide layer on the surface of the solder liquid is scraped off, the dross scraping unit scrapes the oxidized solder dross in the solder holding tank 10171 to the dross discharge port 10172, and finally falls from the dross discharge port 10172 into the dross collection box 1018 for collection.

[0057] like Figure 18 , Figure 19 and Figure 21 As shown, a heating rod 1019 is provided at one end of the solder pot 1017. The heating rod 1019 extends into the solder pot 1017 and can continuously and constantly heat the solder pot 1017 to precisely control the temperature of the solder liquid, ensuring that the solder is always in the best wetting state and avoiding the problems of excessive oxidation due to excessive temperature and poor wetting due to excessive temperature.

[0058] like Figures 21 to 23 As shown, the squeegee assembly includes a fifth mounting bracket 1020. A squeegee mounting seat 1022 driven by a squeegee cylinder 1021 is slidably mounted on the fifth mounting bracket 1020 along the Y-axis direction. A squeegee rod mounting block 1023 is hingedly mounted on the squeegee mounting seat 1022. A squeegee rod 1024 is fixedly mounted on the squeegee rod mounting block 1023. The squeegee rod 1024 is located above the solder pot 1017, and the end of the squeegee rod 1024 near the solder pot 1017 has a squeegee part 10241. The squeegee part 10241 is a bent scraper structure that extends downward along the direction away from the rod body of the squeegee rod 1024. The bottom end of the bent scraper is a straight squeegee cutting edge, which faces the surface of the solder liquid in the solder pot 1017, and is used to scrape off tin oxide dross laterally along the solder surface. The tin scraper is used to remove tin oxide dross that continuously forms on the surface of the molten tin in real time, preventing tin oxide dross from adhering to the core conductor, thereby effectively ensuring the quality of subsequent soldering processes.

[0059] like Figure 21 and Figure 22As shown, to achieve a smooth sliding installation of the solder scraper mounting base 1022 on the fifth mounting bracket 1020, the fifth mounting bracket 1020 is fixedly installed on the solder pot mounting plate 1015. A third slide rail 1025 is fixedly installed on the fifth mounting bracket 1020 along the Y-axis direction. A third slider 1026 is slidably installed on the third slide rail 1025. The third slider 1026 is fixedly connected to the solder scraper mounting base 1022. The solder scraper mounting base 1022 is slidably installed on the fifth mounting bracket 1020 through the third slide rail 1025 and the third slider 1026. The solder scraper cylinder 1021 is fixedly installed on the fifth mounting bracket 1020, and the piston rod end of the solder scraper cylinder 1021 is connected to the solder scraper mounting base 1022. A protective cover plate 1027 is also fixedly installed on the fifth mounting bracket 1020.

[0060] like Figures 21 to 23 As shown, one end of the squeegee mounting block 1023 is hinged to the squeegee mounting base 1022, and the other end of the squeegee mounting block 1023 is fixedly connected to the squeegee 1024. A cam 1028 for resetting and lifting the squeegee 1024 is also rotatably mounted on the fifth mounting bracket 1020. The cam 1028 is located between the squeegee mounting block 1023 and the solder pot 1017, and the cam 1028 is located below the squeegee 1024. The bottom surface of the squeegee 1024 abuts against the cam 1028.

[0061] When the solder scraping cylinder 1021 drives the solder scraping rod 1024 to move along the solder holding tank 10171 towards the dross discharge port 10172, the bottom surface of the rod 1024 contacts the base circle surface of the cam 1028, and the solder scraping part 10241 at the end of the solder scraping rod 1024 adheres to the surface of the molten solder to complete the dross scraping operation. This removes the oxidized dross from the surface of the molten solder in the solder pot 1017 and pushes it to the dross discharge port 10172, where it finally falls into the dross collection box 1018 below for centralized collection, ensuring that the molten solder surface is clean and free of impurities during the immersion soldering operation. After the solder scraping process is completed, the tooling flipping unit drives the transfer tooling 2 to flip. The core wire of the wire body 11, after the cap is removed, is immersed in the solder in the solder container 10171 to complete the soldering. Then, the solder scraping cylinder 1021 drives the solder scraping rod 1024 to reset. When the solder scraping rod 1024 resets, the bottom surface of the rod 1024 contacts the protrusion of the cam 1028. The cam 1028 lifts the solder scraping rod 1024, so that the solder scraping edge is lifted away from the surface of the solder pot 1017, avoiding interference and collision between the solder scraping rod 1024 and the solder pot 1017, thereby ensuring that the solder scraping rod 1024 resets smoothly. In this way, a continuous operation with fully automatic slag scraping, adaptive avoidance, and precise reset is achieved.

[0062] like Figures 21 to 23As shown, the squeegee 1024 has a third strip-shaped hole at one end near the squeegee mounting block 1023. The squeegee 1024 is fixedly mounted on the squeegee mounting block 1023 by a positioning bolt passing through the third strip-shaped hole. Loosening the positioning bolt allows for fine adjustment of the squeegee 1024 to ensure that the squeegee 1024 can accurately scrape off the oxide layer on top of the solder in the solder pot 1017.

[0063] Based on the above structure, the automatic wire stripping and soldering device has a compact overall structure, reasonable layout, and high integration, realizing multi-process collaborative operation. During operation, the wire to be processed is first positioned and clamped on the transfer fixture 2. The positioning and clamping structure of the transfer fixture 2 is used to stabilize and limit the wire, avoiding problems such as wire deviation, movement, and core wire bending during processing. The fixture conveying mechanism 3 automatically conveys the transfer fixture 2, which clamps the wire body 11, to the fixture guide sliding mechanism 4. Then, the fixture feeding mechanism 5 realizes the continuous and orderly step-by-step feeding of the transfer fixture 2, so that each transfer fixture 2 slides smoothly along the fixture guide sliding mechanism 4. According to the preset processing rhythm, each transfer fixture 2 is accurately conveyed to the processing position of each process in sequence.

[0064] After the transfer fixture 2 is conveyed into the fixture guide sliding mechanism 4, the fixture stop mechanism 6 precisely and orderly stops the transfer fixture 2 at the wire sequence detection station. Then, the wire sequence detection mechanism 7 identifies and detects the wire sequence of the core wires inside the wire body 11. If the wire sequence detection determines that the wire is defective, such as having a disordered wire sequence or missing cores, the device triggers an alarm to remind the staff to handle the defective product in time, effectively preventing defective products from flowing into subsequent processing steps and reducing material waste and ineffective processing. If the wire sequence detection determines that the wire is qualified, the fixture stop mechanism 6 releases the stop limit on the transfer fixture 2, and the fixture conveying mechanism 5 continues to convey the transfer fixture 2 to the core wire straightening station. The core wire straightening mechanism 8 straightens and corrects the core wires to ensure the consistency of the benchmark for subsequent cutting, decapping, and soldering processing. After the core wire straightening and correction is completed, the fixture conveying machine... The transfer fixture 2 is moved to the zero-cut and cap-stripping station by the zero-cut and cap-stripping mechanism 9. Each core wire is cut to a fixed length and then the insulation cap at the end of the core wire is stripped to completely expose the internal metal conductor. After that, the fixture transfer mechanism 5 moves the transfer fixture 2 to the soldering process. The soldering process has two independent stations: flux application and soldering. The two stations can be operated in parallel and alternately. The transfer fixture 2 is first wetted with flux at the flux application station by the soldering mechanism 10 to ensure that the conductor surface is evenly coated with flux. Then, it is transferred to the soldering station by the fixture transfer mechanism 5 to complete the soldering. When the soldering mechanism 10 performs the soldering operation on the wire on the current transfer fixture 2, it simultaneously performs the flux application on the wire on the next transfer fixture 2. The two processes do not interfere with each other and are carried out synchronously and alternately.

[0065] This automatic wire stripping and soldering device enables a fully integrated production line operation encompassing core wire sequence detection, core wire straightening and correction, core wire length cutting, insulation cap stripping, core wire flux impregnation, and automatic soldering. The processes are seamlessly connected and precisely coordinated, eliminating the traditional manual handling and separate equipment processing methods. This fully automated operation significantly reduces labor intensity and costs, completely avoiding processing errors and wire contamination caused by manual clamping and handling. It also significantly improves the precision, consistency, and yield of wire stripping and soldering, meeting the demands of large-scale, continuous, high-precision, and high-yield automated production of USB wire harness assemblies, demonstrating strong practicality.

[0066] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the invention. Furthermore, it should be understood that after reading the technical description of this invention, those skilled in the art can make various alterations, modifications, and / or variations to the invention, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. An automatic wire decapping and soldering device, characterized in that, The device includes a mounting base plate, on which a tooling guide sliding mechanism and a tooling conveying mechanism are provided. The tooling guide sliding mechanism is provided with a number of transfer tools, and a tooling conveying mechanism is provided upstream of the tooling guide sliding mechanism. One end of the tooling guide sliding mechanism is connected to the unloading end of the tooling conveying mechanism. The mounting base plate is provided with a wire sequence detection mechanism, a core wire straightening mechanism, a zero-cutting and cap-stripping mechanism and a soldering mechanism in sequence along the conveying direction of the transfer tooling. A tooling stop mechanism is also provided between the wire sequence detection mechanism and the tooling guide sliding mechanism.

2. The automatic wire decapping and soldering device according to claim 1, characterized in that, The transfer fixture includes a transfer base, a wire guide plate is fixedly installed at one end of the transfer base, and a wire clamping assembly is provided at the other end of the transfer base. A wire support part is provided between the wire clamping assembly and the wire guide plate. The wire support part is an integrally formed structure of the transfer base. The wire clamping assembly includes a fixed wire clamping block, a floating wire clamping block, and a first compression spring. The fixed wire clamping block is fixedly installed on the transfer base, and a first wire clamping groove adapted to the outer diameter of the wire body is opened on one side of the top of the fixed wire clamping block. The floating wire clamping block is hingedly installed on the transfer base, and a second wire clamping groove adapted to the outer diameter of the wire body is opened on the side of the floating wire clamping block facing the fixed wire clamping block. The second wire clamping groove is correspondingly arranged with the first wire clamping groove. The first compression spring is located between the floating wire clamping block and the transfer base, and under the action of the first compression spring, the floating wire clamping block is set against the fixed wire clamping block.

3. The automatic wire decapping and soldering device according to claim 2, characterized in that, The tooling guide sliding mechanism includes a first fixed guide rail and a second fixed guide rail. The first fixed guide rail has two sections along its length. The two sections of the first fixed guide rail are respectively fixedly installed on the mounting base plate along the X-axis by a first fixed seat. The soldering mechanism is located between the two sections of the first fixed guide rail. The second fixed guide rail is fixedly installed on the mounting base plate along the X-axis by a second fixed seat, and the second fixed guide rail is parallel to the first fixed guide rail. The first fixed guide rail has an integrally formed sliding guide portion. The bottom of the transfer base is provided with a groove that matches the sliding guide portion. The transfer base is slidably installed on the first fixed guide rail through the groove and the sliding guide portion. The first fixed guide rail has an integrally formed first support edge on the side near the second fixed guide rail, and the second fixed guide rail has an integrally formed second support edge on the side near the first fixed guide rail. The bottom surface of the transfer base abuts against the first support edge and the second support edge, and the other end face of the transfer base abuts against the inner side surface of the second fixed guide rail.

4. The automatic wire decapping and soldering device according to claim 3, characterized in that, The tooling feeding mechanism includes a fixed slide fixedly installed on the mounting base plate. A linear guide rail is slidably installed on the fixed slide along the X-axis direction. A plurality of guide rail follower seats are fixedly installed on the linear guide rail along its length direction. Tooling feeding components are respectively provided on the guide rail follower seats. The tooling feeding components are all located between the first fixed guide rail and the second fixed guide rail. A tooling feeding cylinder is fixedly installed on the mounting base plate along the X-axis direction. A connecting block is installed at the end of the piston rod of the tooling feeding cylinder. The connecting block is fixedly connected to one of the guide rail follower seats. A first buffer and a first limit screw corresponding to the connecting block are installed on the mounting base plate. The tooling feeding assembly includes a tooling mounting base, a tooling tool, and a second compression spring. The tooling mounting base is fixedly mounted on the guide rail follower seat. One end of the tooling tool is hinged to the tooling mounting base, and the other end of the tooling tool is provided with an integrally formed tooling feeding part. The tooling feeding part has an inclined downward pressure guide surface. Corresponding slots are provided on both sides of the transfer base. The second compression spring is located between the tooling tool and the tooling mounting base, and both ends of the second compression spring are respectively connected to the tooling feeding part and the tooling mounting base.

5. The automatic wire decapping and soldering device according to claim 4, characterized in that, The tooling stop mechanism includes a first mounting bracket fixedly mounted on the mounting base plate. A front stop cylinder and a rear stop cylinder are sequentially mounted on the first mounting bracket along the conveying direction of the transfer tooling. Both the front stop cylinder and the rear stop cylinder are fixedly mounted on the first mounting bracket along the Z-axis direction. A front stop block is fixedly mounted on the piston rod end of the front stop cylinder, and a rear stop block is fixedly mounted on the piston rod end of the rear stop cylinder. The line sequence detection mechanism includes a vertical plate fixedly installed on the first mounting bracket. A camera mounting plate is fixedly installed on the top of the vertical plate. A detection camera and a light source are fixedly installed on the camera mounting plate. A lens is installed on the detection camera, and the light source is located directly below the lens.

6. The automatic wire decapping and soldering device according to claim 5, characterized in that, The core wire straightening mechanism includes a second mounting bracket fixedly mounted on the mounting base plate. A first sliding bracket driven by a wire-pulling cylinder is slidably mounted on the second mounting bracket along the Y-axis direction. A wire-clamping cylinder is fixedly mounted on the first sliding bracket along the Z-axis direction. Wire-pulling knife holders are fixedly mounted on the slide block of the wire-clamping cylinder. Wire-pulling knives are fixedly mounted on each of the wire-pulling knife holders. Two wire-pulling knives are arranged correspondingly, and a second limit screw is threaded onto one of the wire-pulling knife holders.

7. The automatic wire decapping and soldering device according to claim 6, characterized in that, The zero-cutting cap stripping mechanism includes a third mounting bracket fixedly installed on the mounting base plate. A cap stripping electric cylinder is fixedly installed on the third mounting bracket along the Y-axis direction. A second sliding bracket is fixedly connected to the slide of the cap stripping electric cylinder. A wire stripping knife holder driven by a cap stripping motor is slidably installed on the second sliding bracket along the Z-axis direction. Two wire stripping knife holders are provided correspondingly. A wire stripping knife is fixedly installed on each of the two wire stripping knife holders. The two wire stripping knives are arranged correspondingly, and under the drive of the cap stripping motor, the two wire stripping knives slide towards each other / away from each other. A wire cap receiving box is also fixedly installed on the second sliding bracket. The wire cap receiving box is located on the side of the wire stripper away from the tooling guide sliding mechanism, and the wire cap receiving box is located between the two wire strippers. The end of the wire cap receiving box near the wire stripper has a core wire insertion port, and the bottom of the wire cap receiving box is connected to a wire cap conveying pipe.

8. The automatic wire decapping and soldering device according to claim 7, characterized in that, The soldering mechanism includes a tooling flipping section, a flux container, a solder pot, and a solder scraping section. The tooling flipping section is located between two sections of the first fixed guide rail. The flux container and the solder pot are both located on the side of the tooling flipping section away from the tooling guide sliding mechanism. The flux container and the solder pot are arranged sequentially along the conveying direction of the transfer tooling. The solder scraping section is correspondingly arranged with the solder pot and is located on the side of the solder pot away from the tooling flipping section.

9. The automatic wire decapping and soldering device according to claim 8, characterized in that, The tooling flipping assembly includes a fourth mounting bracket fixedly mounted on the mounting base plate. A flipping plate driven by a flipping cylinder is hingedly mounted on the fourth mounting bracket. A flipping guide rail is fixedly mounted on the flipping plate. When the tooling is in the material receiving state, both ends of the flipping guide rail are respectively connected to two sections of the first fixed guide rail. The flux container has a double-layered tank structure, including an inner box and an outer box. The inner box is located inside the outer box, and the upper edge of the opening of the inner box is lower than the upper edge of the opening of the outer box. The bottom of the inner box is connected to a flux delivery pipe, and the bottom of the outer box is connected to a flux return pipe. The solder pot has a solder holding tank and a solder dross discharge port. The solder holding tank is installed near the tooling flipping part, the solder dross discharge port is installed near the solder scraping part, and a solder dross collection box is provided directly below the solder dross discharge port. The solder scraping unit includes a fifth mounting bracket, on which a solder scraping mounting seat driven by a solder scraping cylinder is slidably mounted along the Y-axis direction. A solder scraping rod mounting block is hingedly mounted on the solder scraping mounting seat, and a solder scraping rod is fixedly mounted on the solder scraping rod mounting block. The solder scraping rod is located above the solder pot, and the end of the solder scraping rod near the solder pot has a solder scraping part.

10. The automatic wire decapping and soldering device according to claim 9, characterized in that, A first hinge seat is fixedly installed on the fourth mounting bracket. The flipping plate is located above the first hinge seat, and a second hinge seat is fixedly installed on one side of the flipping plate. The second hinge seat is hingedly connected to the first hinge seat. The flipping cylinder is fixedly installed on the fourth mounting bracket along the Z-axis direction. A connecting rod is provided between the flipping cylinder and the flipping plate. One end of the connecting rod is hingedly connected to the piston rod end of the flipping cylinder, and the other end of the connecting rod is hingedly connected to the bottom of the flipping plate. A second buffer is also fixedly installed on the fourth mounting bracket, which is respectively provided at both ends of the flipping plate. And / or, a box mounting base is fixedly installed on the mounting base plate, the flux container is slidably installed on the box mounting base along the Z-axis direction, and an adjusting screw for adjusting the height of the flux container is rotatably installed on the box mounting base; And / or, a solder pot mounting plate is installed on the mounting base plate, the solder pot and the solder dross collection box are both fixedly installed on the solder pot mounting plate, and a heating rod is provided at one end of the solder pot, the heating rod extending into the solder pot; Alternatively, one end of the squeegee mounting block is hinged to the squeegee mounting base, and the other end of the squeegee mounting block is fixedly connected to the squeegee. A cam for resetting and lifting the squeegee is also rotatably mounted on the fifth mounting bracket. The cam is located between the squeegee mounting block and the solder pot, and the cam is located below the squeegee. The bottom surface of the squeegee abuts against the cam.

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