An automatic feeding device for watch strap clamping fixtures

Abstract

This utility model discloses an automatic feeding device for a watch strap clamping fixture, belonging to the field of watch strap processing. The automatic feeding device for a watch strap clamping fixture includes a processing fixture. A support is provided on the front of the processing fixture, a connecting frame is provided on the inner side of the support, and a sleeve is fixedly connected to the outer side of the connecting frame. The end of the sleeve away from the connecting frame passes through the support and is movably connected to the support. A clamping structure is provided inside the connecting frame. The clamping structure can clamp the watch strap on the surface of the conveying equipment and transport it to the top of the processing fixture by flipping it. This utility model, by setting a flipping structure composed of a support, connecting frame, and sleeve on the front of the processing fixture, and cooperating with the clamping mechanism, realizes the flipping feeding of the watch strap after clamping, replacing manual handling. Through the flipping action, the watch strap on the conveying equipment is accurately transferred to the top of the processing fixture, greatly improving the degree of automation and production efficiency of assembly.

Description

Technical Field

[0001] This utility model relates to the field of watch strap processing technology, and in particular to an automatic feeding device for watch strap clamping fixtures. Background Technology

[0002] Watch strap clamping fixtures are specialized tools or fixing devices typically used in watch assembly, repair, or watch strap production. Their core function is to precisely secure the watch strap or case, facilitating safe and efficient operation.

[0003] For example, the patent application number published on the China Patent Network is 202211655647.9, and the patent name is: Watch Strap Assembly Fixture and Watch Strap Assembly Device. It includes a lug positioning component, a watch strap positioning component, and a lug pin positioning component. The lug positioning component is fixed on a first fixed frame and includes a lug fixing seat located at the assembly position and positioning the lug. The watch strap positioning component is installed on a second fixed frame and includes a watch strap positioning platform for positioning the watch strap. The lug pin positioning component includes a lug pin guide block installed on a third fixed frame. The lug pin guide block has lug pin mounting holes that correspond one-to-one with the lug holes on the watch strap. The second fixed frame is slidably connected to the second fixed frame in the front-back direction, and the watch strap positioning platform moves between the pre-loading position and the pre-assembly position, so that the watch head of the watch strap on the watch strap positioning platform moves between the watch strap loading position and the assembly position. The third fixed frame is slidably connected to the second fixed frame in the front-back direction, and the lug pin guide block moves between the clearance position and directly above the assembly position.

[0004] However, the existing watch strap clamping fixtures have a relatively simple feeding method, which mainly relies on manual methods to fix the watch straps on the surface of the feeding position, which is time-consuming and labor-intensive, affecting the efficiency of watch strap processing. Utility Model Content

[0005] The purpose of this invention is to solve the problem of the cumbersome manual feeding method in the prior art, and to propose an automatic feeding device for watch strap clamping fixtures.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic feeding device for a watch strap clamping fixture includes a processing fixture. A bracket is provided on the front of the processing fixture, and a connecting frame is provided on the inner side of the bracket. A sleeve is fixedly connected to the outer side of the connecting frame. The end of the sleeve away from the connecting frame passes through the bracket and is movably connected to the bracket. A clamping structure is provided inside the connecting frame. The clamping structure can clamp the watch strap on the surface of the conveying equipment and transport it to the top of the processing fixture by flipping it.

[0008] As a preferred technical solution of this application, the clamping structure includes a clamping plate movably connected to the surface of the connecting frame by a pin. The side of the clamping plate away from the connecting frame extends to the top of the machining fixture, and the inner side of the clamping plate clamps the watch strap workpiece located at the top of the machining fixture.

[0009] As a preferred technical solution of this application, a bidirectional screw is movably connected inside the connecting frame via a bearing. Both sides of the surface of the bidirectional screw are threaded with threaded sleeves. A sleeve plate is fixedly connected to the side of the clamping plate near the connecting frame. The sleeve plate is located at the top of the threaded sleeve. A sliding rod located inside the sleeve plate is fixedly connected to the top of the threaded sleeve. The sliding rod is slidably connected to the sleeve plate.

[0010] As a preferred technical solution of this application, an extension rod is fixedly connected to the left side of the connecting frame, a drive motor is fixedly connected to the left end of the extension rod, the left end of the bidirectional screw passes through the sleeve and extends to the left side of the sleeve, and the left end of the bidirectional screw is fixedly connected to the output end of the drive motor.

[0011] As a preferred technical solution of this application, a guide bar located on one side of the bidirectional screw is fixedly connected inside the connecting frame. The guide bar contacts the screw sleeve and is slidably connected to the screw sleeve.

[0012] As a preferred technical solution of this application, toothed plates are provided on both sides of the surface of the bracket, and gears are fixedly connected to the surface of the sleeve, with the gears and toothed plates meshing with each other.

[0013] As a preferred technical solution of this application, electric telescopic rods are fixedly connected to both sides of the bracket. The electric telescopic rods are located at the bottom of the toothed plate, and the output end of the electric telescopic rods is fixedly connected to the front end of the toothed plate. The electric telescopic rods can use their output ends to push the toothed plate to move horizontally.

[0014] As a preferred technical solution of this application, the surface of the slide rod is covered with a rubber sleeve, the outer surface of the rubber sleeve is in contact with the inner wall of the sleeve plate, and the rubber sleeve is elastic.

[0015] As a preferred technical solution of this application, the top and bottom of the clamping plate are fixedly connected with limiting strips, and the side of the limiting strip away from the clamping plate extends to both sides of the watch strap workpiece.

[0016] As a preferred technical solution of this application, a spring plate is provided at the top of the connecting frame, and the spring plate is located inside the sleeve plate and fixedly connected to the surface of the sleeve plate.

[0017] Compared with the prior art, the present invention provides an automatic feeding device for watch strap clamping fixtures, which has the following beneficial effects:

[0018] 1. This automatic feeding device for watch strap clamping fixtures uses a flipping structure consisting of a bracket, connecting frame, and sleeve on the front of the processing fixture. This, combined with a clamping mechanism, enables the watch strap to be clamped and flipped for feeding, replacing manual handling. The flipping action precisely transfers the watch strap from the conveying equipment to the top of the processing fixture, significantly improving the automation level and production efficiency of assembly.

[0019] 2. The automatic feeding device for the watch strap clamping fixture is movably connected to the surface of the connecting frame via a clamping plate and a pin shaft, extending to the top of the processing fixture to clamp the watch strap. The clamping plate extends directly to the processing area, ensuring that the clamping position is consistent with the final placement position, reducing the need for secondary positioning.

[0020] 3. The automatic feeding device of this watch strap clamping fixture can synchronously control the reverse movement of the two-sided screw sleeves by rotating the bidirectional screw, so as to realize the symmetrical opening and closing of the clamping plate and the uniform and stable clamping force.

[0021] 4. The automatic feeding device for the watch strap clamping fixture drives a bidirectional screw via a transmission motor and an extension rod, ensuring that power is directly transmitted to the bidirectional screw, thereby improving response speed and transmission efficiency.

[0022] 5. The automatic feeding device of this watch strap clamping fixture is slidably connected to the screw sleeve through the guide bar, which restricts the screw sleeve to move only in a straight line, prevents the circumferential shaking of the screw sleeve caused by the rotation of the bidirectional screw, and ensures the accuracy of the clamping trajectory.

[0023] 6. The automatic feeding device of the watch strap clamping fixture is fixed to the sleeve by gears and meshes with the toothed plates on both sides of the bracket. The meshing of the rack and pinion gears converts the horizontal displacement into the rotation of the sleeve. The transmission ratio is precise and controllable, and the flipping angle is accurately positioned.

[0024] 7. The automatic feeding device for the watch strap clamping fixture uses an electric telescopic rod to push the gear plate horizontally. The electric telescopic rod provides a stable linear thrust, controls the gear rotation angle, and realizes automatic flipping start and stop.

[0025] 8. The automatic feeding device of this watch strap clamping fixture uses an elastic rubber sleeve on the surface of the slide bar to absorb the vibration and impact generated during clamping, protecting the surface of the watch strap from being scratched by rigid parts.

[0026] 9. The automatic feeding device of the watch strap clamping fixture clamps the watch strap from the top and bottom sides through the limit strip to prevent it from shifting or falling off during the flipping process.

[0027] 10. The automatic feeding device of the watch strap clamping fixture provides flexible pre-tightening force through the spring plate to eliminate the shaking caused by the gap between the sleeve plate and the slide bar. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0030] Figure 3 This is a top view of the structure of this utility model;

[0031] Figure 4 This is a schematic diagram of the right-side structure of this utility model;

[0032] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0033] Figure 6 For the present utility model Figure 4 Enlarged structural diagram at point B.

[0034] In the diagram: 1. Machining fixture; 2. Support; 3. Connecting frame; 4. Sleeve; 5. Clamping structure; 6. Clamping plate; 7. Watch strap workpiece; 8. Bidirectional screw; 9. Screw sleeve; 10. Sleeve plate; 11. Slide rod; 12. Extension rod; 13. Drive motor; 14. Guide bar; 15. Tooth plate; 16. Gear; 17. Electric telescopic rod; 18. Rubber sleeve; 19. Limiting bar; 20. Spring plate. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0036] Example 1:

[0037] Reference Figure 1-6An automatic feeding device for watch strap clamping fixtures includes a processing fixture 1. A support 2 is provided on the front of the processing fixture 1. A connecting frame 3 is provided on the inner side of the support 2. A sleeve 4 is fixedly connected to the outer side of the connecting frame 3. The end of the sleeve 4 away from the connecting frame 3 passes through the support 2 and is movably connected to it. A clamping structure 5 is provided inside the connecting frame 3. The clamping structure 5 can clamp the watch strap on the surface of the conveying equipment and transport it to the top of the processing fixture 1 by flipping it. By setting up a flipping structure consisting of the support 2, connecting frame 3, and sleeve 4 on the front of the processing fixture 1, and cooperating with the clamping mechanism, the watch strap is clamped and flipped for feeding, replacing manual handling. The watch strap on the conveyor is precisely transferred to the top of the processing fixture 1 by a flipping action, which greatly improves the automation level and production efficiency of the assembly. The clamping structure 5 includes a clamping plate 6 that is movably connected to the surface of the connecting frame 3 by a pin. The side of the clamping plate 6 away from the connecting frame 3 extends to the top of the processing fixture 1. The inner side of the clamping plate 6 clamps the watch strap workpiece 7 located at the top of the processing fixture 1. A double-acting screw 8 is movably connected to the inside of the connecting frame 3 by a bearing. Both sides of the surface of the double-acting screw 8 are threaded with screw sleeves 9. A sleeve plate 10 is fixedly connected to the side of the clamping plate 6 near the connecting frame 3. The sleeve plate 10 is located on top of the screw sleeve 9. The top of the screw sleeve 9 is fixedly connected to a sleeve plate 10 located on top of the sleeve plate 10. The slide rod 11 inside the 10 is slidably connected to the sleeve 10. An extension rod 12 is fixedly connected to the left side of the connecting frame 3. A drive motor 13 is fixedly connected to the left end of the extension rod 12. The left end of the bidirectional screw 8 passes through the sleeve 4 and extends to the left side of the sleeve 4. The left end of the bidirectional screw 8 is fixedly connected to the output end of the drive motor 13. A guide strip 14 located on one side of the bidirectional screw 8 is fixedly connected inside the connecting frame 3. The guide strip 14 contacts the screw sleeve 9 and is slidably connected to the screw sleeve 9. Toothed plates 15 are provided on both sides of the surface of the bracket 2. A gear 16 is fixedly connected to the surface of the sleeve 4. The gear 16 and the toothed plates 15 mesh with each other. All are fixedly connected with an electric telescopic rod 17, which is located at the bottom of the toothed plate 15. The output end of the electric telescopic rod 17 is fixedly connected to the front end of the toothed plate 15. The electric telescopic rod 17 can push the toothed plate 15 to move horizontally using its output end. A rubber sleeve 18 is fitted on the surface of the slide rod 11. The outer surface of the rubber sleeve 18 contacts the inner wall of the sleeve plate 10. The rubber sleeve 18 is elastic. Limiting strips 19 are fixedly connected to the top and bottom of the clamping plate 6. The side of the limiting strip 19 away from the clamping plate 6 extends to both sides of the watch strap workpiece 7. A spring plate 20 is provided on the top of the connecting frame 3. The spring plate 20 is located inside the sleeve plate 10 and is fixedly connected to the surface of the sleeve plate 10.

[0038] Specifically, during operation / use, the automatic feeding device for watch strap clamping fixture works as follows: The watch strap workpiece 7 is transported to the side near the processing fixture 1 via an external conveying device. At this time, the clamping plates 6, which swing to the top of the conveying device, open and are located on both sides of the watch strap workpiece 7. When clamping is required, the drive motor 13 starts, driving the bidirectional screw 8 to rotate. Since the threads at both ends of the bidirectional screw 8 are in opposite directions, the two threaded sleeves 9 move synchronously towards each other on their surfaces. The movement of the threaded sleeves 9 is transmitted to the clamping plates 6 through the slide rod 11 fixed at their top. As the two threaded sleeves 9 move towards each other, the slide rod 11 drives the two clamping plates 6 to move closer to each other. Finally, the two clamping plates 6 securely clamp the watch strap workpiece 7 on the conveying device between them. After clamping is completed, the clamping device needs to transfer the watch strap from the conveying position to the assembly position at the top of the processing fixture 1. When the electric telescopic rods 17 located on both sides of the bracket 2 are activated, the output end of the electric telescopic rods 17 pushes the toothed plate 15 to move horizontally. The horizontal movement of the toothed plate 15 drives the gear 16 meshing with it to rotate. The gear 16 is fixedly installed on the surface of the sleeve 4 that passes through the bracket 2. The rotation of the gear 16 drives the sleeve 4 to rotate around its axis relative to the bracket 2. Since one end of the sleeve 4 away from the connecting frame 3 passes through the bracket 2 and is movably connected, while the other end is fixed to the outside of the connecting frame 3, the rotation of the sleeve 4 will cause the entire connecting frame 3 and all its internal components to flip. When the connecting frame 3 flips into place, the bottom end of the clamping plate 6 that was originally close to the conveying equipment is precisely moved to the top of the processing fixture 1. When flipped into place, the bidirectional screw 8 rotates in the opposite direction, and the watch strap workpiece 7 is released and precisely placed at the predetermined position on the top of the processing fixture 1.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A watchband clamping jig automatic feeding device, comprising a processing jig (1), characterized in that, The front of the processing fixture (1) is provided with a bracket (2), the inner side of the bracket (2) is provided with a connecting frame (3), and the outer side of the connecting frame (3) is fixedly connected with a sleeve (4). The end of the sleeve (4) away from the connecting frame (3) passes through the bracket (2) and is movably connected to the bracket (2). The inside of the connecting frame (3) is provided with a clamping structure (5). The clamping structure (5) can clamp the watch strap on the surface of the conveying equipment and transport it to the top of the processing fixture (1) by flipping.

2. The automatic feeding device of a watchband clamping jig according to claim 1, wherein The clamping structure (5) includes a clamping plate (6) movably connected to the surface of the connecting frame (3) by a pin. The clamping plate (6) extends to the top of the machining fixture (1) on the side away from the connecting frame (3). The inner side of the clamping plate (6) clamps the watch strap workpiece (7) located on the top of the machining fixture (1).

3. The automatic feeding device of a watchband clamping jig according to claim 2, characterized in that, The inside of the connecting frame (3) is movably connected to a bidirectional screw (8) via a bearing. Both sides of the surface of the bidirectional screw (8) are threaded with screw sleeves (9). The clamping plate (6) is fixedly connected to a sleeve plate (10) on the side near the connecting frame (3). The sleeve plate (10) is located at the top of the screw sleeve (9). The top of the screw sleeve (9) is fixedly connected to a sliding rod (11) located inside the sleeve plate (10). The sliding rod (11) is slidably connected to the sleeve plate (10).

4. The automatic feeding device for a watch strap clamping fixture according to claim 3, characterized in that, An extension rod (12) is fixedly connected to the left side of the connecting frame (3). A drive motor (13) is fixedly connected to the left end of the extension rod (12). The left end of the bidirectional screw (8) passes through the sleeve (4) and extends to the left side of the sleeve (4). The left end of the bidirectional screw (8) is fixedly connected to the output end of the drive motor (13).

5. The automatic feeding device of a watchband clamping jig according to claim 4, wherein The connecting frame (3) is fixedly connected to a guide bar (14) located on one side of the bidirectional screw (8). The guide bar (14) contacts the screw sleeve (9) and is slidably connected to the screw sleeve (9).

6. The automatic feeding device of a watchband clamping jig according to claim 5, wherein The bracket (2) has toothed plates (15) on both sides of its surface, and the sleeve (4) has a gear (16) fixedly connected to its surface. The gear (16) and the toothed plates (15) mesh with each other.

7. The automatic feeding device of a watchband clamping jig according to claim 6, wherein Electric telescopic rods (17) are fixedly connected to both sides of the bracket (2). The electric telescopic rods (17) are located at the bottom of the toothed plate (15). The output end of the electric telescopic rods (17) is fixedly connected to the front end of the toothed plate (15). The electric telescopic rods (17) can use their output ends to push the toothed plate (15) to move horizontally.

8. The automatic feeding device of a watchband clamping jig according to claim 7, characterized in that, The slide bar (11) is fitted with a rubber sleeve (18), the outer surface of which is in contact with the inner wall of the sleeve plate (10), and the rubber sleeve (18) is elastic.

9. The automatic feeding device of a watchband clamping jig according to claim 8, wherein Limiting strips (19) are fixedly connected to the top and bottom of the clamping plate (6), and the limiting strips (19) extend from the side away from the clamping plate (6) to both sides of the watch strap workpiece (7).

10. An automatic feeding device for a watch strap clamping fixture according to claim 9, characterized in that, The top of the connecting frame (3) is provided with a spring plate (20), which is located inside the sleeve (10) and is fixedly connected to the surface of the sleeve (10).

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