Riveting device for USB (Universal Serial Bus) connecting cable

Abstract

The utility model discloses a USB (universal serial bus) connecting cable riveting device, which belongs to the technical field of USB cable processing equipment and comprises a base fixedly connected with the outside, a fixed table used for supporting is mounted at the top of the base, a sliding groove is formed in the fixed table, two movable frames are symmetrically arranged in the sliding groove in a sliding manner, and the movable frames are arranged in the sliding groove in a sliding manner. A driving part is installed on the side face of the fixed table, the output end of the driving part is connected with a coupler, a rotating part of the coupler is connected with a forward threaded column used for adjusting the position of one movable frame, and the end of the forward threaded column is connected with a reverse threaded column used for adjusting the position of the other movable frame; the interior of the sliding groove is fixedly connected with a guide column used for controlling the displacement direction of the moving frame, the guide column completely penetrates through the interior of the moving frame, it is ensured that the cable is always kept precisely positioned along with the connector, the cable deviation problem caused by vibration or impact force is greatly reduced, and the defective product rate is remarkably reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of USB cable processing equipment, and in particular, it is a USB connection cable riveting device. Background Technology

[0002] USB cables are commonly used data and power transmission components in electronic devices. The reliability of the connection between the connector and the cable directly affects the performance. During the crimping process, the crimping part of the USB cable needs to be accurately positioned. If the positioning accuracy is weak, the cable cannot always maintain accurate positioning with the connector, which greatly increases the problem of cable deviation caused by vibration or impact, and significantly increases the defect rate.

[0003] A search revealed a Chinese patent document (authorization announcement number CN212062967U), which discloses a novel cable terminal riveting device. The device involves a pressure plate that moves vertically relative to a placement platform via a guide rod inserted into a fixed sliding sleeve. Upper and lower hexagonal pressure knives are located at the lower end of the pressure plate and the upper end of the placement platform. A fine-tuning lifting rod is fixedly connected to the top of the pressure plate, which is connected to a booster pump and a cylinder. A controller is located on one side of the base, connected to a control cylinder. The cylinder, through the booster pump, pushes the pressure plate downwards, causing the upper and lower hexagonal pressure knives to close and rivet the product. This device can quickly and effectively rivet cable terminals, improving production efficiency. While it meets basic usage requirements, its precise positioning capability is weak. The cable cannot maintain precise positioning with the connector, significantly increasing the risk of cable misalignment due to vibration or impact, resulting in a significantly higher defect rate. Utility Model Content

[0004] The purpose of this invention is to provide a USB connector cable riveting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a USB connection cable riveting device, comprising a base for fixed connection with an external component, a fixed platform for support mounted on the top of the base, and a sliding groove provided inside the fixed platform;

[0006] Two movable frames are symmetrically slidably arranged inside the sliding groove. A drive unit is installed on the side of the fixed platform. The output end of the drive unit is connected to a coupling. The rotating part of the coupling is connected to a positive threaded column for adjusting the position of one of the movable frames. The end of the positive threaded column is connected to a negative threaded column for adjusting the position of the other movable frame. A guide column for controlling the displacement direction of the movable frame is fixedly connected inside the sliding groove. The guide column completely penetrates the interior of the movable frame.

[0007] Preferably, a movable hollow plate is connected to the outer periphery of the movable frame. The movable hollow plate is slidably disposed on the top of the fixed platform. A circular groove is provided inside the movable hollow plate. A spring is connected inside the circular groove. A movable disk is connected to the end of the spring.

[0008] Preferably, the movable disk is slidably disposed inside the circular groove, and a limiting plate for controlling the movement of the movable disk is connected to the outer periphery of the movable disk. The surface of the movable hollow plate is provided with a limiting groove for the end of the limiting plate to slide.

[0009] Preferably, a connecting post is connected to the side of the movable disk away from the spring, and an extrusion plate for contacting the USB connection cable riveting component is installed at the end of the connecting post away from the movable disk.

[0010] Preferably, a riveting template for riveting USB connection cables is installed in the middle of the fixed platform, and the surface of the riveting template is provided with a riveting groove for placing the riveting parts.

[0011] Preferably, a vertical support plate is connected to the top of the base, a control unit is installed on the side of the vertical support plate, a horizontal plate for providing installation space is installed on the top of the vertical support plate, and a lifting drive unit is installed on the top of the horizontal plate.

[0012] Preferably, the movable part of the lifting drive unit is connected to a connecting part, and the end of the connecting part is equipped with a riveting part for riveting a USB connection cable. The connecting part and the riveting part are located at the bottom of the horizontal plate.

[0013] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0014] This USB connector cable riveting device benefits from a bidirectional synchronous positioning and adjustment structure consisting of a drive unit, coupling, forward threaded column, reverse threaded column, moving frame, and guide column. The drive unit drives the threaded columns with opposite rotation directions to rotate synchronously, and the guide column limits the displacement of the moving frame, enabling precise movement of the two moving frames in opposite directions. It can adapt to the positioning requirements of everything from Micro-USB small-size connectors to USB-C large-size connectors with shells without changing tooling. This not only reduces the equipment adjustment time when switching specifications, but also controls the axial positioning error of the connector through the high precision characteristics of the threaded drive, providing a stable guarantee for the subsequent riveting quality.

[0015] This USB cable riveting device benefits from an elastic buffer clamping structure consisting of a spring, a moving disk, a connecting post, a pressing plate, and a limiting plate inside a movable hollow plate. During clamping, the pressing plate pushes the moving disk to compress the spring, and the elastic deformation of the spring generates an adaptive clamping force. This not only avoids connector deformation caused by rigid clamping, but also provides a stable clamping force throughout the riveting process. Combined with the sliding guide of the limiting plate along the limiting groove, it effectively prevents the moving disk from shifting, ensuring that the cable and connector are always accurately positioned. This significantly reduces cable shifting caused by vibration or impact, resulting in a significant decrease in the defect rate. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 5 This utility model Figure 3 Enlarged view of point B in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] In the diagram: 1. Base; 101. Vertical support plate; 102. Horizontal plate; 103. Lifting drive unit; 104. Connecting part; 105. Riveting part; 106. Control unit; 2. Fixed platform; 201. Drive unit; 202. Coupling; 203. Forward threaded column; 204. Reverse threaded column; 205. Sliding groove; 206. Guide column; 207. Moving frame; 3. Moving hollow plate; 301. Circular groove; 302. Spring; 303. Limiting groove; 304. Moving disc; 305. Connecting column; 306. Limiting plate; 307. Extrusion plate; 4. Riveting template; 401. Riveting groove. Detailed Implementation

[0024] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0025] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0026] like Figures 1 to 5 The USB connector cable riveting device shown includes a base 1 for fixed connection with the outside, a fixed platform 2 for support is installed on the top of the base 1, and a sliding groove 205 is provided inside the fixed platform 2.

[0027] Two movable frames 207 are symmetrically slidably arranged inside the sliding groove 205. A drive unit 201 is mounted on the side of the fixed platform 2. The output end of the drive unit 201 is connected to a coupling 202. The rotating part of the coupling 202 is connected to a forward threaded column 203 for adjusting the position of one of the movable frames 207. The end of the forward threaded column 203 is connected to a reverse threaded column 204 for adjusting the position of the other movable frame 207. A guide column 206 for controlling the displacement direction of the movable frame 207 is fixedly connected inside the sliding groove 205. The guide column 206 completely penetrates the interior of the movable frame 207. After the positioning adjustment program is started, the drive unit 201 (servo motor) outputs torque, which drives the forward threaded column 203 and the reverse threaded column 204 to rotate synchronously (their threads rotate in opposite directions) through the coupling 202. 203 is threaded to one of the movable frames 207, and the reverse threaded post 204 is threaded to the other movable frame 207. Both movable frames 207 are slidably disposed in the sliding groove 205 of the fixed table 2, and their displacement direction is restricted by the guide post 206 (through the movable frame 207). Therefore, the two movable frames 207 will move at a constant speed in opposite directions along the sliding groove 205. If a large-sized USB connector (such as a USB-C connector with a shell) is being processed, the movable frame 207 moves in the opposite direction, causing the two movable hollow plates 3 on both sides to open synchronously and increase the gap. If a small-sized USB connector (such as a Micro-USB connector) is being processed, the movable frames 207 move towards each other, causing the two movable hollow plates 3 on both sides to move closer synchronously and decrease the gap until the extrusion plate 307 is aligned with the preset positioning position of the connector to be clamped, and the drive unit 201 stops working.

[0028] A movable hollow plate 3 is connected to the outer periphery of the movable frame 207. The movable hollow plate 3 is slidably disposed on the top of the fixed platform 2. A circular groove 301 is provided inside the movable hollow plate 3. A spring 302 is connected inside the circular groove 301. A movable disk 304 is connected to the end of the spring 302. The movable disk 304 is slidably disposed inside the circular groove 301. A limiting plate 306 for controlling the movement of the movable disk 304 is connected to the outer periphery of the movable disk 304. A sliding end of the limiting plate 306 is provided on the surface of the movable hollow plate 3. The movable limiting groove 303 and the movable disk 304 are connected to a connecting post 305 on the side away from the spring 302. A pressing plate 307 for contacting the USB connection cable riveting component is installed at the end of the connecting post 305 away from the movable disk 304. A riveting template 4 for riveting the USB connection cable is installed in the middle of the fixed platform 2. The surface of the riveting template 4 is provided with a riveting groove 401 for placing the riveting parts. The operator places the USB connector into the riveting groove 401 of the riveting template 4. The shape matches the connector to achieve bottom positioning. At the same time, the cable end is connected to the connector to ensure that the core wire is aligned with the riveting position. After clamping is triggered, the drive unit 201 starts again, driving the two moving frames 207 to move further towards each other until the two side extrusion plates 307 contact the two sides of the USB connector. When a small pushing force is applied, the extrusion plate 307 pushes the moving disk 304 to slide inward along the circular groove 301 of the moving hollow plate 3 through the connecting column 305. At the same time, the spring 302 in the circular groove 301 is compressed. During the sliding of the moving disk 304, the limiting plate 306 on its outer periphery slides synchronously along the limiting groove 303 on the surface of the moving hollow plate 3 to prevent the moving disk 304 from rotating or shifting. When the compression of the spring 302 reaches the preset value (corresponding to the preset clamping force to ensure that the connector is not loose and does not deform), the drive unit 201 stops working. At this time, the USB connector is fixed by the extrusion plate 307 (elastic clamping, buffering pressure) and the riveting groove 401 (bottom support). The cable is positioned synchronously with the connector, and there is no risk of shifting.

[0029] A vertical support plate 101 is connected to the top of the base 1. A control unit 106 is installed on the side of the vertical support plate 101. A horizontal plate 102 for providing installation space is installed on the top of the vertical support plate 101. A lifting drive unit 103 is installed on the top of the horizontal plate 102. A connecting part 104 is connected to the movable part of the lifting drive unit 103. A riveting part 105 for riveting USB connection cables is installed at the end of the connecting part 104. The connecting part 104 and the riveting part 105 are located at the bottom of the horizontal plate 102. The operator inputs the USB connection to be processed through the control unit 106 (such as a touch screen + PLC controller). The cable specifications (such as connector type, riveting pressure corresponding to wire diameter, and lifting stroke) are synchronously sent by the control unit 106 to the drive unit 201 (such as a servo motor) and the lifting drive unit 103 (such as a cylinder / electric push rod) to complete the equipment initialization. During initialization, the drive unit 201 is in standby mode, and the movable part of the lifting drive unit 103 drives the connecting part 104 and the riveting part 105 to the highest position (away from the riveting template 4) to avoid interference during clamping. The movable hollow plate 3 and its associated components (such as the extrusion plate 307) are in the initial open state to facilitate the placement of the workpiece and ensure clamping accuracy. After recognition, the control unit 106 sends a riveting command to the lifting drive unit 103. The movable part of the lifting drive unit 103 (such as a cylinder) extends downward at a preset speed, driving the connecting part 104 and the riveting part 105 to descend vertically until the riveting head of the riveting part 105 contacts the riveting part of the USB connector. During the continued descent, the riveting part 105 applies a preset pressure to the connector (the pressure value is monitored in real time by the control unit 106 according to parameters), pressing and fixing the metal shell of the connector to the cable core wire. During the riveting process, the pressing plate 307 always maintains an elastic clamping state on the connector (spring 302 lifts). Provides continuous buffering force to prevent the joint from shifting due to riveting impact. When the riveting force reaches the preset value and is maintained for a preset time (e.g., 2 seconds to ensure a firm riveting), the movable part of the lifting drive unit 103 drives the riveting part 105 to reset to the highest position. At the same time, the drive unit 201 starts in reverse, driving the two moving frames 207 to move in the opposite direction. The pressing plate 307 resets under the rebound force of the spring 302 (the moving plate 304 slides outward along the circular groove 301). The USB connector is released, and the operator can take out the riveted USB connection cable from the riveting groove 401 to complete a single operation cycle.

[0030] To prevent environmental factors, maintenance, materials, and coordination from affecting the normal operation of the USB connection cable riveting device, targeted management is required based on the core structure of the device (such as base 1, drive unit 201, threaded posts 203 / 204, spring 302, etc.). Regarding the environment, to address dust, a transparent dust cover can be installed to prevent dust from entering the device and causing jamming. Additionally, before daily operation, compressed air (pressure ≤0.4MPa) should be used to clean the riveting groove 401 of the riveting template 4 and the circular groove 301 of the movable hollow plate 3 to prevent dust accumulation from affecting connector positioning. Regarding temperature and humidity fluctuations, the device should be placed in a workshop environment with a temperature of 20-28℃ and a relative humidity of 40%-60% to prevent high temperatures from causing insulation aging in the drive unit 201 (servo motor) or low temperatures from reducing the elasticity coefficient of the spring 302. Furthermore, the surfaces of metal components such as base 1 and vertical support plate 101 should be regularly sprayed with anti-rust oil (once per quarter) to prevent corrosion caused by high humidity.

[0031] In terms of maintenance, a regular inspection mechanism needs to be established: For the drive unit 201, check the tightness of the servo motor wiring terminals monthly, and replace the motor bearing grease (using lithium-based grease) every six months to prevent the motor from shutting down due to overload caused by loose wiring or insufficient lubrication; for the forward / reverse threaded posts 203 / 204 and guide posts 206, apply precision machine tool guide rail oil (viscosity 22#) weekly to remove impurities in the thread clearance and prevent thread wear from causing a decrease in the displacement accuracy of the moving frame 207; for the spring 302, sample and test the elastic compression every three months. If the shrinkage deviation exceeds the preset value by ±5% (e.g., if the deviation exceeds 0.25mm when the preset compression is 5mm), the entire unit must be replaced to avoid insufficient clamping force of the extrusion plate 307 due to elastic failure. For the control unit 106, the touch screen parameters and PLC program should be calibrated monthly, and the preset parameters (such as the riveting pressure of different joints and the lifting stroke) should be backed up to prevent parameter loss or drift from causing abnormal riveting. For the riveting unit 105, the wear of the riveting head should be checked every two weeks. If there are dents or scratches (deeper than 0.1mm) on the contact surface, they should be ground and repaired to avoid deformation of the joint during riveting.

[0032] Regarding materials, strict control must be exercised over the consistency and compatibility of core component materials: the circular groove 301 and moving disc 304 of the movable hollow plate 3 must be made of wear-resistant cast iron (such as HT300) to avoid long-term sliding leading to groove wall wear (fitting clearance exceeding 0.05mm); the contact surface of the extrusion plate 307 must be made of alloy tool steel with a hardness of HRC55-60 (such as Cr12MoV), and a 1mm thick oil-resistant silicone anti-slip layer must be attached (regularly check the integrity of the silicone layer and replace it promptly if damaged) to prevent insufficient material hardness from causing deformation of the extrusion plate or the silicone layer from falling off, affecting clamping stability; the riveting groove 401 of the riveting template 4 must be made of high-speed steel with quenching treatment (hardness above HRC60) to avoid long-term placement of the joint leading to groove wear, and when replacing cable adapter gaskets (corresponding to 0.8-2mm wire diameter), it must be ensured that the gasket material is 65Mn spring steel (consistent with the material of the U-shaped clamp) to prevent the gasket from loosening due to the difference in thermal expansion coefficients of different materials.

[0033] Regarding precision control, the fit status of key components needs to be checked regularly: Check the fit clearance between the moving frame 207 and the sliding groove 205 (design value 0.02-0.05mm). If the clearance exceeds 0.1mm, the moving frame 207 needs to be replaced or the sliding groove 205 needs to be ground and repaired to prevent the moving frame from shaking and affecting the positioning of the extrusion plate 307; Check the thread fit between the forward / reverse threaded posts 203 / 204 and the moving frame 207. If thread stripping or excessive clearance (exceeding 0.1mm) occurs, the threaded posts or the threaded sleeves of the moving frame need to be replaced to ensure the moving frame 207 moves in the opposite direction / reverse direction. The synchronization error during operation should be ≤0.05mm. Check the fit between the guide column 206 and the moving frame 207. If the guide column is loose (radial runout exceeding 0.03mm), tighten the guide column mounting seat inside the fixed platform 2 to prevent the moving frame 207 from shifting in direction. For the connection between the lifting drive unit 103 (cylinder / electric push rod) and the connecting part 104, check the fastener torque (e.g., M8 bolt torque 18-22 N·m) monthly to prevent loose connections from causing a vertical deviation (exceeding 0.1mm / 100mm) in the descent of the riveting part 105, ensuring precise alignment of the riveting head with the riveting joint. Through these multi-dimensional controls, the influence of various factors can be effectively mitigated, ensuring the long-term stable operation of the device.

[0034] Working principle

[0035] When using this USB connector cable riveting device, the operator first inputs the USB cable specifications through the control unit 106. The parameters are synchronized to the drive unit 201 and the lifting drive unit 103. At this time, the lifting drive unit 103 drives the connecting part 104 and the riveting part 105 to a high position, and the moving hollow plate 3 and the extrusion plate 307 open to prepare for subsequent operations. Then, the positioning adjustment is performed. The drive unit 201 uses the coupling 202 to rotate the forward threaded column 203 and the reverse threaded column 204. Under the action of the sliding groove 205 and the guide column 206, the two moving frames 207 move in opposite directions with the threaded column, driving the moving hollow plate 3 to adjust the spacing to adapt to different sized USB connectors. After reaching the position, the drive unit 201 stops. Then, the workpiece is clamped, and the operator puts the USB connector into the riveting groove 401 of the riveting template 4 to connect the cable. The drive unit 201 restarts, and the moving frame 207 drives the extrusion plate 307 to contact the joint. It continues to move, causing the extrusion plate 307 to push the moving disk 304 through the connecting column 305 to compress the spring 302. The limit plate 306 slides along the limit groove 303 to prevent deviation. When the spring 302 reaches the preset compression amount, the drive unit 201 stops, the workpiece is fixed, and the final riveting operation is performed. The control unit 106 commands the lifting drive unit 103 to drive the riveting part 105 to descend and contact the joint and apply pressure. The control unit 106 monitors the pressure. After the pressure reaches the target and is maintained for a preset time, the lifting drive unit 103 and the riveting part 105 reset. The drive unit 201 rotates in the opposite direction, and the extrusion plate 307 resets under the action of the spring 302. The workpiece is then removed to complete the cycle.

[0036] It should be noted that in this article, relational terms such as one and two are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A USB connection cable swaging device comprising a base (1) for fixed connection to the outside, characterized in that: The top of the base (1) is provided with a fixed table (2) for support, and the inside of the fixed table (2) is provided with a sliding groove (205); The inside of the sliding groove (205) is symmetrically provided with two moving frames (207), the side of the fixed table (2) is provided with a driving part (201), the output end of the driving part (201) is connected with a shaft coupling (202), the rotating part of the shaft coupling (202) is connected with a positive threaded column (203) for adjusting the position of one of the moving frames (207), the end of the positive threaded column (203) is connected with a reverse threaded column (204) for adjusting the position of the other moving frame (207), the inside of the sliding groove (205) is fixedly connected with a guide column (206) for controlling the displacement direction of the moving frame (207), and the guide column (206) penetrates through the inside of the moving frame (207).

2. The USB connecting cable crimping device according to claim 1, wherein: The outer periphery of the moving frame (207) is connected with a moving hollow plate (3), the moving hollow plate (3) is slidingly arranged on the top of the fixed table (2), the inside of the moving hollow plate (3) is provided with a circular groove (301), the inside of the circular groove (301) is connected with a spring (302), and the end of the spring (302) is connected with a moving disc (304).

3. The USB connection cable crimping device of claim 2, wherein: The moving disc (304) is slidingly arranged in the circular groove (301), the outer periphery of the moving disc (304) is connected with a limiting plate (306) for controlling the movement of the moving disc (304), and the surface of the moving hollow plate (3) is provided with a limiting groove (303) for sliding the end of the limiting plate (306).

4. The USB connecting cable crimping device according to claim 3, wherein: The side, away from the spring (302), of the moving disc (304) is connected with a connecting column (305), one end of the connecting column (305), away from the moving disc (304), is provided with a pressing plate (307) for contacting the riveting part of the USB connecting cable.

5. The USB connecting cable crimping device of claim 1, wherein: The middle of the fixed table (2) is provided with a riveting die plate (4) for riveting the USB connecting cable, and the surface of the riveting die plate (4) is provided with a riveting groove (401) for placing the riveting part.

6. The USB connection cable crimping device of claim 1, wherein: The top of the base (1) is connected with a vertical supporting plate (101), the side of the vertical supporting plate (101) is provided with a control part (106), the top of the vertical supporting plate (101) is provided with a horizontal plate (102) for providing a mounting space, and the top of the horizontal plate (102) is provided with a lifting driving part (103).

7. The USB connection cable crimping device of claim 6, wherein: The movable part of the lifting driving part (103) is connected with a connecting part (104), the end of the connecting part (104) is provided with a riveting part (105) for riveting the USB connecting cable, and the connecting part (104) and the riveting part (105) are arranged at the bottom of the horizontal plate (102).

Images