A synchronous screwing and torque detection mechanism

Abstract

The utility model discloses a synchronous screwing and torque detection mechanism, include: frame, conveying mechanism sets up on the frame for conveying the product to be screwed, centering device sets up in conveying mechanism both sides for the product to be screwed that conveying mechanism conveys carries out the centering positioning, presses down tooling assembly, sets up in the top of conveying mechanism for the product to be screwed that the centering positioning after is pressed down, two screw cap screwing assembly sets up in conveying mechanism both sides respectively, and with the upper and lower pressing tooling assembly is opposite, and every screw cap screwing assembly all includes: pre -screwed component no.

Description

Technical Field

[0001] This utility model relates to the field of end cap tightening technology, and in particular to a synchronous tightening and torque detection mechanism. Background Technology

[0002] In modern industrial production, there is a widespread demand for end cap tightening operations on various products. However, the handheld electric capping machines commonly used in the industry currently have many limitations. These devices can only tighten one cap at a time, unable to process multiple caps simultaneously, greatly limiting production efficiency. Moreover, they typically lack torque detection capabilities, making it difficult to precisely control torque during tightening, easily leading to under-tightening or over-tightening, thus affecting product quality and stability. Furthermore, handheld electric capping machines require manual operation, which is not only labor-intensive but also demands a high level of skill from the operator; different operators may result in inconsistent tightening effects. Additionally, existing equipment lacks adequate protection measures for the product during tightening, easily scratching or damaging the product surface, harming its appearance and performance, and increasing the defect rate. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a synchronous tightening and torque detection mechanism.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] This utility model provides a synchronous tightening and torque detection mechanism, comprising:

[0006] frame;

[0007] The conveying mechanism, mounted on the frame, is used to convey products to be tightened;

[0008] The centering device is located on both sides of the conveying mechanism and is used to center and position the products to be tightened conveyed by the conveying mechanism.

[0009] The upper and lower clamping fixture assembly is located above the conveying mechanism and is used to clamp the product to be tightened after centering and positioning.

[0010] Two cap tightening assemblies are respectively located on both sides of the conveying mechanism and opposite to the upper and lower clamping fixture assemblies. Each cap tightening assembly includes:

[0011] Pre-tightening component one is used to pre-tighten the end cap of the pressed product;

[0012] Tightening component two is located next to the pre-tightening component and is used to finally tighten the end cap after pre-tightening.

[0013] A torque sensor is installed on the tightening assembly 2 to detect the torque value during the tightening process of the tightening assembly 2.

[0014] Preferably, the frame is also provided with a protective cover, which is used to cover the centering device, the upper and lower clamping tooling assembly, and the two screw cap tightening assembly.

[0015] Preferably, the protective cover is also equipped with a control unit; the control unit includes a PLC and a touch screen that is communicatively connected to the PLC; the corresponding ends of the PLC are electrically connected to the corresponding ends of the conveying mechanism, the centering device, the upper and lower clamping tooling assembly, the pre-tightening assembly one, the tightening assembly two, and the torque sensor.

[0016] Preferably, the conveying mechanism includes a chain conveyor with several spaced-apart V-shaped receiving parts installed on it for receiving products. One end of the chain conveyor is set as a manual feeding area, and the other end is set as a manual unloading area.

[0017] Preferably, the centering device includes centering cylinders arranged symmetrically on the left and right, a centering plate disposed at the output end of the centering cylinders, and centering components installed at both ends of the centering plate.

[0018] Preferably, the upper and lower clamping tooling assembly includes a lower clamping assembly and an upper clamping assembly positioned above the lower clamping assembly;

[0019] The lower pressing assembly includes a lifting cylinder, a lifting plate disposed at the output end of the lifting cylinder, a guide post disposed on the lifting plate, and a lower pressing plate disposed at the end of the guide post.

[0020] The upper pressing assembly includes a Z-axis drive cylinder, a connecting plate disposed at the output end of the Z-axis drive cylinder, Z-axis guide columns mounted at both ends of the connecting plate, a sliding sleeve disposed on the Z-axis guide column, a mounting plate disposed on the sliding sleeve, a spring sleeved on the lower end of the Z-axis guide column, a fixing plate mounted on the end of the Z-axis guide column, and an upper pressing block disposed on the fixing plate and cooperating with the lower pressing plate.

[0021] The Z-axis drive cylinder is fixed on the mounting plate, one end of the spring abuts against the sliding sleeve, and the other end abuts against the fixed plate; both ends of the mounting plate are also equipped with position detection switches.

[0022] Preferably, the pre-tightening assembly includes a pre-tightening drive cylinder, a sliding assembly, a sliding seat disposed on the sliding assembly and connected to the output end of the pre-tightening drive cylinder, a pre-tightening motor mounted on the sliding seat, and an end cap pre-tightening component disposed at the output end of the pre-tightening motor; the pre-tightening drive cylinder is used to drive the pre-tightening motor to approach or move away from the end cap of the product to be tightened, and the pre-tightening motor pre-tightens the end cap of the product to be tightened through the end cap pre-tightening component.

[0023] Preferably, the tightening assembly two includes a tightening cylinder, a sliding assembly two, a sliding seat two disposed on the sliding assembly two and connected to the output end of the tightening cylinder, a tightening motor mounted on the sliding seat two, and an end cap tightening component disposed at the output end of the tightening motor;

[0024] The tightening cylinder is used to drive the tightening motor to approach or move away from the end cap of the product to be tightened. The tightening motor tightens the end cap of the product to be tightened through the end cap tightening component. The torque sensor is set at the output end of the tightening motor to detect the torque value during the tightening process.

[0025] Preferably, the frame is also equipped with a main power supply and a pneumatic circuit switch, and the bottom of the frame is equipped with adjustable support feet and casters with brakes.

[0026] The technical solution of this utility model has the following beneficial effects:

[0027] Significantly improves production efficiency: This utility model, through the symmetrically arranged cap tightening components on both sides, can simultaneously tighten the caps at both ends of the product, breaking through the limitation of handheld electric cap tightening machines that can only tighten one cap at a time. It achieves simultaneous processing of multiple caps, increasing production efficiency by more than double compared to traditional equipment. It effectively adapts to the needs of large-scale production, greatly improves production efficiency, meets the needs of modern industrial large-scale production, saves a lot of manpower and time costs, and can effectively improve the production efficiency of enterprises.

[0028] Precise torque control: This invention utilizes a torque sensor mounted on the tightening assembly two to monitor the torque value during the tightening process in real time and display it on the touchscreen. This ensures that the tightening torque of each product meets the set standard, guaranteeing product quality and consistency. Simultaneously, the touchscreen can store over 100,000 torque data points, facilitating production process traceability and quality control.

[0029] Reduced labor intensity and human error: This invention utilizes the automated coordinated action of the conveying mechanism, centering device, clamping assembly, and capping assembly. Only manual loading and unloading are required, eliminating the need for handheld equipment and significantly reducing operator workload. Simultaneously, the automated process replaces the reliance on manual tightening experience, avoiding variations in tightening results caused by different operators and significantly improving product quality stability. During the tightening process, the precise coordination of the upper and lower clamping fixtures and the centering device ensures product stability, preventing scratches and damage to the product surface, effectively protecting product appearance and performance, and reducing the defect rate.

[0030] Easy to operate: The equipment is highly automated. The operator only needs to place the hand-spun product in the manual feeding area. Subsequent operations such as conveying, centering, pressing, and tightening are all completed automatically by the equipment, which reduces the labor intensity of the operator and the technical level requirements, and improves the stability and reliability of the production process.

[0031] The protective cover can cover the centering device, the upper and lower clamping tooling components and the two screw cap tightening components. During equipment operation, it can effectively prevent foreign objects from entering the equipment, avoid operators from contacting moving parts, reduce safety hazards and improve production safety.

[0032] In summary, this utility model overcomes the limitations of handheld electric capping machines through automation upgrades, precise control, and optimized product protection. It has significant advantages in improving production efficiency, ensuring quality stability, and reducing costs. It is especially suitable for scenarios with high requirements for tightening precision and product protection (such as tightening end caps of medical equipment and precision instruments). Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;

[0034] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0035] Figure 3 This is a schematic diagram of the centering device of this utility model;

[0036] Figure 4 This is a schematic diagram of the upper and lower clamping tooling assembly of this utility model;

[0037] Figure 5 This is a schematic diagram of the screw cap tightening assembly of this utility model. Detailed Implementation

[0038] The embodiments of this utility model are described in detail below. Examples of these 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 intended to explain this utility model, and should not be construed as limiting this utility model.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] Reference Figures 1 to 5 This utility model provides a synchronous tightening and torque detection mechanism, characterized in that it includes: a frame 1; a conveying mechanism 2 is disposed on the frame 1 for conveying the product 100 to be tightened; the product 100 to be tightened can be used for tightening the end caps of PC dialyzers and dialysate filters, and these products are all made of PC material injection molding, and the surface of the end caps should not be scratched during the tightening process.

[0044] The conveying mechanism 2 can realize the automated conveying of products to be tightened, and transfer manually placed products from the initial position to the centering and positioning station and the tightening station, and finally to the unloading area, replacing manual handling and improving production efficiency. For dialyzers and filter end caps made of PC material (polycarbonate), the smooth conveying avoids scratches on the product surface, ensures that the product is not damaged during the flow, and provides a continuous material supply for subsequent centering, pressing and tightening processes.

[0045] Centering device 3, located on both sides of conveying mechanism 2, is used to center and position the product 100 to be tightened conveyed by conveying mechanism 2. Before the product enters the tightening station, centering device 3 adjusts the product to be tightened on conveying mechanism 2 to a preset center position through symmetrical actions on both sides (such as centering cylinder drive), ensuring the alignment accuracy between the product end cap and the cap tightening assembly. This solves the problem of positional deviation that may occur during product conveying, ensuring that the cap assembly can accurately fit the end cap during subsequent pre-tightening and final tightening, avoiding end cap scratches or incomplete tightening due to alignment deviations. It is especially suitable for the precision positioning requirements of PC material end caps (the surface of which is easily scratched).

[0046] The upper and lower clamping fixture assembly 4 is positioned above the conveying mechanism 2 and is used to clamp the product to be tightened after centering and positioning. After the product is centered and positioned, the upper and lower clamping fixture assembly 4 applies pressure from above the conveying mechanism 2 to clamp and fix the product, preventing the product from rotating, shifting, or shaking during the tightening process. This ensures the stability of the product during pre-tightening and final tightening, and avoids scratches or bumps on the end cap surface or deviations in tightening torque caused by product movement.

[0047] Two cap tightening assemblies 5 are respectively disposed on both sides of the conveying mechanism 2 and opposite to the upper and lower clamping fixture assemblies 4. Each cap tightening assembly includes:

[0048] The pre-tightening assembly 50 is used to initially tighten the end cap of the pressed product, pre-fixing the end cap to the product body, providing a foundation for the subsequent final tightening, reducing torque fluctuations during final tightening, and avoiding instability in the tightening process caused by the initial looseness of the end cap; for PC material end caps, low-torque pre-tightening avoids surface damage caused by direct high-torque tightening.

[0049] Tightening assembly 2 51, located next to pre-tightening assembly 1 50, applies a predetermined final torque to the end cap based on the pre-tightening, completing the tight sealing of the end cap and ensuring that the end cap meets the preset sealing requirements. Simultaneously, by precisely controlling the tightening action, it prevents the PC material end cap from cracking or surface scratching due to excessive force. Torque sensor 20, located on tightening assembly 2 51, detects the torque value during the tightening process.

[0050] Furthermore, the frame is also equipped with a protective cover, which is used to cover the centering device, the upper and lower clamping tooling components, and the two screw cap tightening components; to prevent external dust and debris from entering the work area and contaminating the products; and at the same time to prevent operators from contacting moving parts, thereby improving the safety of equipment operation.

[0051] Furthermore, a control unit is also installed on the protective cover 6; the control unit includes a PLC and a touch screen that is connected to the PLC for communication; the PLC is electrically connected to the conveying mechanism 2, the centering device 3, the upper and lower clamping tooling assembly 4, the pre-tightening assembly 50, the tightening assembly 51 and the torque sensor 20 respectively, and is used to control the coordinated action of each component to realize the automated production process (such as the cyclic action of "conveying → centering → clamping → pre-tightening → final tightening → unloading"), and ensure the accuracy and consistency of the PC end cover tightening process;

[0052] The touchscreen is used to display the torque value detected by the torque sensor in real time and to store the detection data, which can store more than 100,000 data points. As a human-machine interface, the touchscreen displays the torque value detected by the torque sensor 20 in real time, and also supports operators in setting tightening parameters (such as target torque) and querying historical data. It intuitively presents key data in the production process, facilitating operators to monitor the equipment status.

[0053] Furthermore, the conveying mechanism 2 includes a chain conveyor with several spaced V-shaped receiving parts 201 installed on it for receiving products. One end of the chain conveyor is set as a manual feeding area and the other end is set as a manual unloading area. The conveying mechanism 2 replaces traditional manual handling, realizes the automated flow of products between various processes, and improves production efficiency.

[0054] Furthermore, the centering device 3 includes centering cylinders 301 arranged symmetrically on the left and right, a centering plate 302 disposed at the output end of the centering cylinder, and centering components 303 installed at both ends of the centering plate 302.

[0055] In this embodiment, the centering device 3 works as follows: The centering device 3 is synchronously driven by the left and right symmetrical centering cylinders 301, which drive the centering plate 302 and the centering parts 303 installed at both ends of it to extend towards the center of the conveying mechanism 2; When the conveying mechanism 2 conveys the product 100 to be tightened to the centering station, the left and right centering parts 303 simultaneously contact the two sides of the product, and adjust the product to the center position aligned with the subsequent cap tightening assembly 5 and the upper and lower pressing tooling assembly 4 through symmetrical thrust; After centering is completed, the centering cylinders 301 drive the centering plate 302 and the centering parts 303 to reset, so as to avoid interfering with the subsequent conveying of the product and ensure that the product accurately enters the next process (pressing, tightening).

[0056] Furthermore, the upper and lower clamping fixture assembly 4 includes a lower clamping assembly and an upper clamping assembly positioned above the lower clamping assembly;

[0057] The lower pressing assembly includes a lifting cylinder 401, a lifting plate 402 disposed at the output end of the lifting cylinder 401, a guide post disposed on the lifting plate 402, and a lower pressing plate 403 disposed at the end of the guide post. The lower pressing plate 403 is V-shaped.

[0058] The working principle of the lower clamping component in this embodiment:

[0059] When the V-shaped receiving part 201 of the conveying mechanism 2 conveys the product to be tightened to the tightening station, the lifting cylinder 401 is activated, driving the lifting plate 402 to move upward along the guide column, thereby driving the V-shaped lower pressure plate 403 to rise; the V-shaped lower pressure plate precisely connects with the bottom of the product on the conveying mechanism, smoothly receiving and lifting the product from the V-shaped receiving part; at this time, the V-shaped structure forms an initial limit on the product, which, together with the upper pressure block of the subsequent upper and lower clamping tooling components, jointly achieves stable fixing of the product, providing a reliable support foundation for the pre-tightening and tightening processes.

[0060] The upper pressing assembly includes a Z-axis drive cylinder 410, a connecting plate disposed at the output end of the Z-axis drive cylinder 410, Z-axis guide columns 411 mounted at both ends of the connecting plate, a sliding sleeve disposed on the Z-axis guide column, a mounting plate 412 disposed on the sliding sleeve, a spring 413 sleeved on the lower end of the Z-axis guide column, a fixing plate 414 mounted at the end of the Z-axis guide column 411, and an upper pressing block 415 disposed on the fixing plate 414 and cooperating with the lower pressing plate 403.

[0061] The Z-axis drive cylinder 410 is fixed on the mounting plate 412, and the mounting plate 412 is fixed on the fixing bracket inside the protective cover 6.

[0062] One end of the spring 413 abuts against the sliding sleeve, and the other end abuts against the fixed plate 414;

[0063] Spring 413 provides a buffering effect during the clamping process. When the Z-axis drive cylinder 410 pushes the upper pressure block 415 down to contact the product, spring 413 absorbs part of the impact force through elastic deformation, preventing the PC material end cap surface from being damaged by rigid contact. At the same time, the spring force adjusts the clamping force to ensure that the product is stably clamped without being damaged, meeting the requirement of "no scratches or bumps on the product". Position detection switches 416 are also installed at both ends of the mounting plate 412 to detect whether the upper pressure block has been pressed down to the preset position.

[0064] The working principle of the upper clamping component in this embodiment is as follows:

[0065] After the product is received and lifted by the V-shaped lower pressure plate of the lower clamping assembly, the Z-axis drive cylinder 410 is activated, driving the Z-axis guide column to move downward along the sliding sleeve through the connecting plate, thereby pushing the fixed plate and the upper pressure block 415 closer to the product end cover. When in contact with the product, the spring 413 is compressed, and rigid impact is avoided through elastic buffering. When the upper pressure block presses the product to the preset position, the position detection switch 416 is triggered, sending a "pressing in place" signal to the PLC. At this time, the pre-tightening assembly 50 and the tightening assembly 51 are activated to start the tightening operation of the end cover. After tightening is completed, the Z-axis drive cylinder is reset, driving the upper pressure block 415 to rise and release the product.

[0066] Furthermore, the pre-tightening assembly 50 includes a pre-tightening drive cylinder 501, a sliding assembly 502, a sliding seat 503 disposed on the sliding assembly 502 and connected to the output end of the pre-tightening drive cylinder 501, a pre-tightening motor 504 mounted on the sliding seat 503, and an end cap pre-tightening component 505 disposed at the output end of the pre-tightening motor 504; the pre-tightening drive cylinder 501 is used to drive the pre-tightening motor 504 to approach or move away from the end cap of the product to be tightened, and the pre-tightening motor 504 pre-tightens the end cap of the product to be tightened through the end cap pre-tightening component 505, wherein the sliding assembly 502 is composed of a slide rail and a slider;

[0067] In this embodiment, the working principle of the pre-tightening component 50 is as follows: After the upper and lower pressing components 4 complete the product pressing, the pre-tightening drive cylinder 501 is started, pushing the sliding seat 503 to move along the sliding component 502 (slide rail + slider) towards the product, driving the pre-tightening motor 504 and the end cap pre-tightening component 505 to approach the end cap; when the end cap pre-tightening component 505 is in contact with the end cap, the pre-tightening motor 504 is started, driving the end cap pre-tightening component 505 to rotate, and initially tightening the end cap; after the pre-tightening is completed, the pre-tightening drive cylinder is reset, driving the pre-tightening motor and the end cap pre-tightening component to return to the initial position along the sliding component, making way for the final tightening process of the subsequent tightening component 2.

[0068] Furthermore, the tightening assembly 2 51 includes a tightening cylinder, a sliding assembly 2, a sliding seat 2 disposed on the sliding assembly 2 and connected to the output end of the tightening cylinder, a tightening motor mounted on the sliding seat 2, and an end cap tightening component disposed on the output end of the tightening motor; the sliding assembly 2 is composed of a slide rail and a slider;

[0069] The tightening cylinder is used to drive the tightening motor to approach or move away from the end cap of the product to be tightened. The tightening motor tightens the end cap of the product to be tightened through the end cap tightening component. The torque sensor 20 is set at the output end of the tightening motor and is used to detect the torque value during the tightening process.

[0070] The working principle of the tightening component 2 51 in this embodiment is as follows: After the pre-tightening component 1 50 completes the pre-tightening of the end cap and retracts, the tightening cylinder is activated, pushing the sliding seat 2 along the sliding component 2 (slide rail + slider) towards the product direction, driving the tightening motor and the end cap tightening component closer to the end cap; when the end cap tightening component is in contact with the end cap, the tightening motor is activated, driving the end cap tightening component to rotate, and finally tightening the end cap; during the process, the torque sensor 20 detects the torque value in real time and feeds it back to the PLC. When the preset target torque is reached, the tightening motor stops rotating; after tightening is completed, the tightening cylinder is reset, driving the tightening motor and the end cap tightening component to retract to the initial position along the sliding component 2, completing the entire tightening process.

[0071] Furthermore, the frame is also equipped with a main power supply and a pneumatic switch, and the bottom of the frame is equipped with adjustable support feet and casters with brakes.

[0072] Working principle of this utility model

[0073] This utility model is a synchronous tightening and torque detection mechanism, mainly used for the automated tightening of end caps of precision products such as PC dialyzers and dialysate filters. Its core workflow revolves around an automated cycle of "conveying → centering → pressing → pre-tightening → final tightening → unloading". The specific principle is as follows:

[0074] Feeding and conveying stage

[0075] In the manual loading area of ​​the chain conveyor, the operator places the product (such as a PC dialyzer) to be tightened with end caps onto the V-shaped receiving part 201 of the conveying mechanism 2. The chain conveyor starts and sequentially conveys the product to the centering station, the tightening station, and finally to the manual unloading area.

[0076] Positioning phase

[0077] When the product is conveyed to the centering station, the centering device 3 is activated: the left and right symmetrical centering cylinders 301 synchronously drive the centering plate 302 and the centering component 303 to extend towards the center. Through the flexible contact between the centering component 303 and the two sides of the product, the product is adjusted to the center position aligned with the subsequent cap tightening assembly 5 and the upper and lower clamping fixture assembly 4. After centering is completed, the centering cylinders 301 drive the centering component 303 to reset, avoiding interference with subsequent processes.

[0078] Upper and lower compression stage:

[0079] After centering, the product is conveyed to the tightening station. The lower clamping component is activated first: the lifting cylinder 401 drives the lifting plate 402 and the V-shaped lower pressure plate 403 to rise, smoothly receiving and lifting the product from the V-shaped receiving part 201. Then the upper clamping component is activated: the Z-axis drive cylinder 410 drives the upper pressure block to fall 415 through the Z-axis guide column 411, cooperating with the V-shaped lower pressure plate 403 to clamp the product.

[0080] Pre-tightening stage:

[0081] Upon receiving the signal indicating that the clamping is in place, the pre-tightening components 50 on both sides operate synchronously: the pre-tightening drive cylinder 501 pushes the sliding seat 503 along the sliding component 502 toward the product end cover. When the end cover pre-tightening component 505 is in contact with the end cover, the pre-tightening motor 504 starts and drives the end cover pre-tightening component to rotate. After the pre-tightening is completed, the pre-tightening drive cylinder 501 drives the component to reset, making way for the final tightening.

[0082] Final tightening and torque testing stage:

[0083] After the pre-tightening assembly 50 resets, the tightening assemblies 51 on both sides are activated: the tightening cylinder pushes the sliding seat 2 along the sliding assembly 2 towards the end cover. After the end cover tightening parts are in contact with the end cover, the tightening motor starts and outputs the preset target torque to complete the final tightening of the end cover. During the process, the torque sensor 20 at the output end of the tightening motor detects the torque value in real time and feeds the data back to the control system (PLC) to ensure that the torque meets the process standards (such as leak-proof sealing requirements). When the target torque is reached, the tightening motor stops, and the tightening cylinder drives the assembly to reset.

[0084] Material preparation:

[0085] After tightening, the upper and lower clamping fixture 4 is reset, and the product is placed back on the V-shaped receiving part 201 and conveyed to the manual unloading area by the chain conveyor, where the operator takes away the finished product.

[0086] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A synchronous tightening and torque detection mechanism, characterized in that, include: frame; The conveying mechanism, mounted on the frame, is used to convey products to be tightened; The centering device is located on both sides of the conveying mechanism and is used to center and position the products to be tightened conveyed by the conveying mechanism. The upper and lower clamping fixture assembly is located above the conveying mechanism and is used to clamp the product to be tightened after centering and positioning. Two cap tightening assemblies are respectively located on both sides of the conveying mechanism and opposite to the upper and lower clamping fixture assemblies. Each cap tightening assembly includes: Pre-tightening component one is used to pre-tighten the end cap of the pressed product; Tightening component two is located next to the pre-tightening component and is used to finally tighten the end cap after pre-tightening. A torque sensor is installed on the tightening assembly 2 to detect the torque value during the tightening process of the tightening assembly 2.

2. The synchronous tightening and torque detection mechanism according to claim 1, characterized in that, The frame is also equipped with a protective cover, which is used to cover the centering device, the upper and lower clamping tooling components, and the two screw cap tightening components.

3. The synchronous tightening and torque detection mechanism according to claim 2, characterized in that, The protective cover is also equipped with a control unit; the control unit includes a PLC and a touch screen that is connected to the PLC; the corresponding ends of the PLC are electrically connected to the corresponding ends of the conveying mechanism, the centering device, the upper and lower clamping tooling assembly, the pre-tightening assembly one, the tightening assembly two, and the torque sensor.

4. The synchronous tightening and torque detection mechanism according to claim 1, characterized in that, The conveying mechanism includes a chain conveyor with several spaced V-shaped receiving parts installed on it for receiving products. One end of the chain conveyor is set as a manual feeding area, and the other end is set as a manual unloading area.

5. The synchronous tightening and torque detection mechanism according to claim 1, characterized in that, The centering device includes centering cylinders arranged symmetrically on the left and right, a centering plate disposed at the output end of the centering cylinders, and centering components installed at both ends of the centering plate.

6. The synchronous tightening and torque detection mechanism according to claim 1, characterized in that, The upper and lower clamping fixture assembly includes a lower clamping assembly and an upper clamping assembly positioned above the lower clamping assembly; The lower pressing assembly includes a lifting cylinder, a lifting plate disposed at the output end of the lifting cylinder, a guide post disposed on the lifting plate, and a lower pressing plate disposed at the end of the guide post. The upper pressing assembly includes a Z-axis drive cylinder, a connecting plate disposed at the output end of the Z-axis drive cylinder, Z-axis guide columns mounted at both ends of the connecting plate, a sliding sleeve disposed on the Z-axis guide column, a mounting plate disposed on the sliding sleeve, a spring sleeved on the lower end of the Z-axis guide column, a fixing plate mounted on the end of the Z-axis guide column, and an upper pressing block disposed on the fixing plate and cooperating with the lower pressing plate. The Z-axis drive cylinder is fixed on the mounting plate, one end of the spring abuts against the sliding sleeve, and the other end abuts against the fixed plate; both ends of the mounting plate are also equipped with position detection switches.

7. The synchronous tightening and torque detection mechanism according to claim 1, characterized in that, The pre-tightening assembly includes a pre-tightening drive cylinder, a sliding assembly, a sliding seat mounted on the sliding assembly and connected to the output end of the pre-tightening drive cylinder, a pre-tightening motor mounted on the sliding seat, and an end cap pre-tightening component mounted at the output end of the pre-tightening motor. The pre-tightening drive cylinder is used to drive the pre-tightening motor to approach or move away from the end cap of the product to be tightened, and the pre-tightening motor pre-tightens the end cap of the product to be tightened through the end cap pre-tightening component.

8. The synchronous tightening and torque detection mechanism according to claim 1, characterized in that, The tightening assembly two includes a tightening cylinder, a sliding assembly two, a sliding seat two disposed on the sliding assembly two and connected to the output end of the tightening cylinder, a tightening motor mounted on the sliding seat two, and an end cap tightening component disposed on the output end of the tightening motor; The tightening cylinder is used to drive the tightening motor to approach or move away from the end cap of the product to be tightened. The tightening motor tightens the end cap of the product to be tightened through the end cap tightening component. The torque sensor is set at the output end of the tightening motor to detect the torque value during the tightening process.

9. The synchronous tightening and torque detection mechanism according to claim 1, characterized in that, The frame is also equipped with a main power supply and a pneumatic switch, and the bottom of the frame is equipped with adjustable support feet and casters with brakes.

Images