Automatic screw locking equipment for production and assembly of trolley case trolley
By introducing a rotary connecting pile and an arc-shaped sliding groove design into the production and assembly equipment for trolley case handles, combined with a synchronous control device and an electric clamp, the problem of existing equipment being unable to adapt to uneven end faces has been solved, achieving automated adjustment and efficient screw tightening.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU JIANGFAN IND CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-23
AI Technical Summary
Existing automatic screw-locking equipment cannot effectively handle the uneven end faces of different styles of suitcase handles, resulting in the need for additional fixtures and increased production costs.
A device including a mounting frame, a clamping table, a screw locking device, and a synchronous control device was designed. The screw locking device can be flexibly adjusted by rotating connecting piles and arc-shaped sliding grooves, and automated positioning and adjustment can be achieved by combining electric clamps and micro cylinders.
It can adapt to different angles and curvatures of the pull rod end face without the need for additional clamps, reducing production costs and improving the convenience of adjustment and the efficiency of tightening screws.
Smart Images
Figure CN224390474U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of painting equipment technology, and in particular to an automatic screw-locking device for the production and assembly of trolley case handles. Background Technology
[0002] In the production of trolley cases, the manufactured trolley rods need to be assembled. When assembling the screws, the screws must first be pre-installed inside the screws, and then the entire trolley rod is placed on an automatic screw-locking machine to tighten the screws in one go. However, due to the different designs of the trolley rods of different models, the end face where the screws are installed is not a flat end face. It is generally an inclined surface with different angles or a slightly curved surface. Most existing automatic screw-locking machines can only handle screw-locking work on flat end faces. This requires additional clamps to clamp the trolley rod to keep the end face where the screws are located flat, thereby increasing production costs and urgently needing improvement. Utility Model Content
[0003] To address the shortcomings of the aforementioned technologies, this utility model provides an automatic screw-locking device for the production and assembly of trolley case handles. The device includes a mounting frame, a control system, a clamping platform with a pair of clamps, and a pair of screw-locking devices. The mounting frame has a mounting plate, and the pair of screw-locking devices are mounted on the mounting plate and movably engage with it. The clamping platform is located on the mounting frame below the pair of screw-locking devices. The pair of screw-locking devices are connected to the control system. A pair of symmetrical rotating connecting pins are located at the bottom of the mounting plate, and a pair of symmetrical arc-shaped sliding grooves are also provided. Each pair of screw-locking devices includes a mounting base, a drive mechanism, an automatic locking mechanism, and a limiting screw. A rotating connecting plate is fixedly mounted on the mounting base, and the rotating connecting plate is connected to the rotating connecting pins and rotatably engages with them. A limiting threaded hole matching the limiting screw is located on the mounting base at a position corresponding to the arc-shaped sliding groove. The limiting screw passes through the arc-shaped sliding groove and is positioned within the limiting threaded hole. The mounting plate also has a synchronization control device for synchronously adjusting the pair of screw-locking devices, and this synchronization control device is also connected to the control system.
[0004] By adopting the above technical solution, a mounting plate is set on the mounting frame, and a pair of screw locking devices are set on the mounting plate. One end of the screw is connected to the mounting plate through a rotating connecting post. A pair of arc-shaped sliding grooves are set on the mounting plate, allowing the limiting screw to pass through the arc-shaped sliding grooves and be adjusted to limit the connection with the screw locking device. In this way, the pair of screw locking devices can be rotated and fixed on the mounting plate. It can be flexibly adjusted according to the angle and curvature of the surface of the pull rod to be locked. The pull rod to be locked only needs to be placed horizontally on the fixture table and limited and fixed. There is no need to configure additional fixtures for fixing it, which saves production costs and makes adjustment very convenient and quick. Furthermore, a synchronous control device is set on the mounting plate to control the pair of screw locking devices simultaneously, further improving the convenience of adjustment.
[0005] Further features of this invention: The synchronous control device includes a drive cylinder, an adapter block, a pair of control rods, and a pair of connecting blocks. The pair of connecting blocks are respectively mounted on the mounting bases of a pair of screw locking devices and located within a pair of arc-shaped sliding grooves. The drive cylinder is fixedly mounted on the back of the mounting plate and located on the symmetrical axis of the pair of arc-shaped sliding grooves. The adapter block is fixedly connected to the piston rod of the drive cylinder. The two ends of the pair of control rods are rotatably connected to the adapter block and the pair of connecting blocks, respectively.
[0006] By adopting the above technical solution, the synchronous control device includes a drive cylinder, an adapter block, a pair of control rods, and a pair of connecting blocks. The pair of connecting blocks are respectively set on the mounting base of a pair of screw locking devices and located in a pair of arc-shaped sliding grooves. The drive cylinder is fixedly set on the back of the mounting plate and located on the symmetrical axis of the pair of arc-shaped sliding grooves. The adapter block is fixedly connected to the piston rod of the drive cylinder. The two ends of the pair of control rods are rotatably connected to the adapter block and the pair of connecting blocks, respectively. The pair of screw locking devices are connected to the drive cylinder through the adapter block, the pair of control rods, and the pair of connecting blocks. This allows the screw locking devices to be adjusted without manual support to prevent them from falling over when the limit screws are loosened. Only the adjustment angle needs to be monitored. After the pair of screw locking devices reach the corresponding angle adjustment position through the extension and retraction of the drive cylinder, the drive cylinder is stopped. Then, the pair of limit screws can be tightened again to complete the limit of the screw locking devices, while reducing the connection pressure of the drive cylinder.
[0007] A further feature of this invention is that the fixture platform and the mounting frame are in sliding engagement, and a miniature cylinder is provided on one side of the fixture platform on the mounting frame. The piston rod of the miniature cylinder is connected to one end of the fixture platform, and the miniature cylinder is connected to the control system.
[0008] Using the above technical solution, since the fixture table and the mounting frame are in sliding fit, a miniature cylinder is provided on one side of the fixture table on the mounting frame. The piston rod of the miniature cylinder is connected to one end of the fixture table. The miniature cylinder is connected to the control system. When there is more than one pair of screw holes to be tightened on the pull rod, the miniature cylinder can be set according to the actual number and spacing of the holes. After the screw in one hole is tightened, the screw tightening device resets. Then, the miniature drive cylinder starts to control the fixture table to move to the next hole of the pull rod and align with the screw tightening device. After that, the screw tightening device can operate again to tighten the screw in the hole.
[0009] A further feature of this invention is that the pair of clamps are electric clamps.
[0010] By adopting the above technical solution, since the pair of clamps are electric clamps, the pull rod placed on the clamp table can be quickly limited, thereby further improving the efficiency of tightening screws. Attached Figure Description
[0011] Appendix Figure 1 This is a schematic diagram of the structure of an automatic screw-locking device for producing and assembling a trolley case handle, according to a specific embodiment of this utility model.
[0012] Appendix Figure 2 This is an exploded structural diagram of an automatic screw-locking device for the production and assembly of a trolley case handle, according to a specific embodiment of this utility model.
[0013] Appendix Figure 3 This is a schematic diagram of the back structure of an automatic screw-locking device for producing and assembling a trolley case handle, according to a specific embodiment of this utility model.
[0014] 1-Mounting frame, 2-Control system, 3-Clamp, 4-Clamping platform, 5-Screw locking device, 6-Mounting upright plate, 7-Rotary connecting pile, 8-Arc-shaped sliding groove, 9-Mounting base, 10-Drive mechanism, 11-Automatic locking mechanism, 12-Limit screw, 13-Rotary connecting plate, 14-Synchronization control device, 15-Drive cylinder, 16-Adapter block, 17-Control rod, 18-Connecting block, 19-Miniature cylinder. Detailed Implementation
[0015] like Figure 1-3The illustrated automatic screw-locking equipment for assembling and manufacturing trolley handles includes a mounting frame 1, a control system 2, a clamping platform 4 with a pair of clamps 3, and a pair of screw-locking devices 5. A mounting plate 6 is mounted on the mounting frame. The pair of screw-locking devices are mounted on the mounting plate and movably engage with it. The clamping platform is mounted on the mounting frame and located below the pair of screw-locking devices. The pair of screw-locking devices are connected to the control system. A pair of symmetrical rotating connecting pins 7 are located at the bottom of the mounting plate, and a pair of symmetrical arc-shaped sliding grooves 8 are also provided on the mounting plate. Each pair of screw locking devices includes a mounting base 9, a drive mechanism 10, an automatic locking mechanism 11, and a limit screw 12. A rotating connecting plate 13 is fixedly mounted on the mounting base. The rotating connecting plate is connected to the rotating connecting pile and rotates in cooperation. A limit thread hole matching the limit screw is provided at a position corresponding to the arc-shaped sliding groove on the mounting base. The limit screw passes through the arc-shaped sliding groove and is set in the limit thread hole. A synchronization control device 14 for synchronous adjustment of the pair of screw locking devices is also provided on the mounting plate. The synchronization control device is also connected to the control system.
[0016] By setting a mounting plate on the mounting frame, and then placing a pair of screw locking devices on the mounting plate, with one end connected to the mounting plate via a rotating connecting post, and then setting a pair of arc-shaped sliding grooves on the mounting plate, the limiting screws pass through the arc-shaped sliding grooves and are adjusted to limit the connection with the screw locking devices. In this way, the pair of screw locking devices can be rotated and fixed on the mounting plate, and can be flexibly adjusted according to the angle and curvature of the surface of the pull rod to be locked. The pull rod to be locked only needs to be placed horizontally on the fixture table and limited and fixed, without the need for additional fixtures to fix it, saving production costs and making adjustment quite convenient and quick. By setting a synchronous control device on the mounting plate, the pair of screw locking devices can be controlled simultaneously, further improving the convenience of adjustment.
[0017] The synchronization control device includes a drive cylinder 15, an adapter block 16, a pair of control rods 17, and a pair of connecting blocks 18. The pair of connecting blocks are respectively mounted on the mounting base of a pair of screw locking devices and located in a pair of arc-shaped sliding grooves. The drive cylinder is fixedly mounted on the back of the mounting plate and located on the symmetrical axis of the pair of arc-shaped sliding grooves. The adapter block is fixedly connected to the piston rod of the drive cylinder. The two ends of the pair of control rods are rotatably connected to the adapter block and the pair of connecting blocks, respectively.
[0018] The synchronous control device includes a drive cylinder, an adapter block, a pair of control rods, and a pair of connecting blocks. The pair of connecting blocks are respectively mounted on the mounting base of a pair of screw locking devices and located within a pair of arc-shaped sliding grooves. The drive cylinder is fixedly mounted on the back of the mounting plate and located on the symmetrical axis of the pair of arc-shaped sliding grooves. The adapter block is fixedly connected to the piston rod of the drive cylinder. The two ends of the pair of control rods are rotatably connected to the adapter block and the pair of connecting blocks, respectively. By connecting the pair of screw locking devices to the drive cylinder through the adapter block, the pair of control rods, and the pair of connecting blocks, it is possible to adjust the screw locking devices without manually supporting them to prevent them from falling over. Only the adjustment angle needs to be monitored. After the pair of screw locking devices reach the corresponding angle adjustment position through the extension and retraction of the drive cylinder, the drive cylinder is stopped. Then, the pair of limit screws can be tightened again to complete the limit of the screw locking devices, while reducing the connection pressure of the drive cylinder.
[0019] The fixture platform and the mounting frame are slidably coupled. A miniature cylinder 19 is provided on one side of the fixture platform on the mounting frame. The piston rod of the miniature cylinder is connected to one end of the fixture platform. The miniature cylinder is connected to the control system.
[0020] Because the fixture platform and the mounting frame slide together, a miniature cylinder is provided on one side of the fixture platform on the mounting frame. The piston rod of the miniature cylinder is connected to one end of the fixture platform. The miniature cylinder is connected to the control system. When there is more than one pair of screw holes to be tightened on the pull rod, the miniature cylinder can be set according to the actual number and spacing of the holes. After the screw in one hole is tightened, the screw tightening device resets. Then, the miniature drive cylinder starts to control the fixture platform to move to the next hole on the pull rod and align with the screw tightening device. After that, the screw tightening device can operate again to tighten the screw in the hole.
[0021] The pair of clamps are electric clamps.
[0022] Since the pair of clamps are electric clamps, the pull rod placed on the clamping table can be quickly limited, further improving the efficiency of tightening screws.
Claims
1. An automatic screw-locking device for assembling and manufacturing trolley handles, comprising a mounting frame, a control system, a clamping table with a pair of clamps, and a pair of screw-locking devices, wherein a mounting plate is provided on the mounting frame, the pair of screw-locking devices are disposed on the mounting plate and movably engage with the mounting plate, the clamping table is disposed on the mounting frame and located below the pair of screw-locking devices, and the pair of screw-locking devices are connected to the control system, characterized in that: A pair of symmetrical rotating connecting pins are provided at the bottom of the mounting plate. A pair of symmetrical arc-shaped sliding grooves are also provided on the mounting plate. Each pair of screw locking devices includes a mounting base, a drive mechanism, an automatic locking mechanism, and a limit screw. A rotating connecting plate is fixedly mounted on the mounting base. The rotating connecting plate is connected to the rotating connecting pins and rotates in cooperation. A limit thread hole matching the limit screw is provided on the mounting base at a position corresponding to the arc-shaped sliding groove. The limit screw passes through the arc-shaped sliding groove and is set in the limit thread hole. The mounting plate is also provided with a synchronization control device for synchronous adjustment of the pair of screw locking devices. The synchronization control device is also connected to the control system.
2. An automatic screw-locking device for producing and assembling trolley handles according to claim 1, characterized in that: The synchronization control device includes a drive cylinder, an adapter block, a pair of control rods, and a pair of connecting blocks. The pair of connecting blocks are respectively mounted on the mounting base of a pair of screw locking devices and located in a pair of arc-shaped sliding grooves. The drive cylinder is fixedly mounted on the back of the mounting plate and located on the symmetrical axis of the pair of arc-shaped sliding grooves. The adapter block is fixedly connected to the piston rod of the drive cylinder. The two ends of the pair of control rods are rotatably connected to the adapter block and the pair of connecting blocks, respectively.
3. An automatic screw-locking device for producing and assembling trolley handles according to claim 1, characterized in that: The fixture platform and the mounting frame are slidably coupled. A miniature cylinder is provided on one side of the fixture platform on the mounting frame. The piston rod of the miniature cylinder is connected to one end of the fixture platform. The miniature cylinder is connected to the control system.
4. An automatic screw-locking device for producing and assembling trolley handles according to claim 3, characterized in that: The pair of clamps are electric clamps.