A positioning clamp for easy gripping in shoe processing

Abstract

This utility model relates to the field of shoe processing technology, specifically to a positioning fixture for shoe processing that facilitates clamping. It includes a base frame with two fixed frames at their top ends. A clamping platform is rotatably mounted between the two frames via a flipping mechanism. Sliding bars are symmetrically arranged on both sides of the top of the clamping platform, and arc-shaped clamping blocks are detachably connected to opposite sides of each sliding bar. A clamping and positioning mechanism is provided between the clamping platform and the sliding bars. This utility model, through the combined use of a worm gear transmission mechanism and a rack and pinion mechanism, achieves adjustable clamping platform angles and self-locking fixation, effectively solving the technical problem of accidental deflection of the placement plate due to external forces in existing technologies, and ensuring stability during processing.

Description

Technical Field

[0001] This utility model relates to the field of shoe processing technology, specifically to a positioning clamp for shoe processing that is easy to hold. Background Technology

[0002] The production process of shoes involves multiple steps. For shoes with laces, the final step is to thread the laces onto the shoes. During the lace-threading process, positioning clamps are used to temporarily fix the shoes in place.

[0003] As disclosed in patent application CN216416230U, a shoe processing positioning fixture includes a base, a placement plate rotatably connected to the base, an elastic structure and a positioning structure on the placement plate, a support plate fixedly connected to the base, and an adjustment structure including a threaded rod on the support plate. The beneficial effects of this invention, achieved by employing the above technical solution, are as follows: by setting up the support plate, adjustment structure, and placement plate, operators can adjust the angle of the placement plate according to their height and operating habits during actual operation, avoiding discomfort to the operator.

[0004] Although the aforementioned patent includes an adjustment block for pushing the placement plate to adjust its angle, the angle adjustment between the adjustment block and the placement plate is achieved only through sliding contact, lacking a rigid locking mechanism. In actual use, when the operator applies force such as lacing the shoes, the placement plate may unexpectedly deflect or shake due to external force, resulting in insufficient processing stability. Utility Model Content

[0005] The purpose of this invention is to provide a positioning clamp for shoe processing that is easy to hold, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A positioning clamp for shoe processing that facilitates clamping, including

[0008] The base frame has frames fixedly connected to its top two sides, and a clamping platform can be flipped between the two frames via a flipping mechanism.

[0009] Sliding bars are symmetrically arranged on both sides of the top of the clamping platform, and arc-shaped clamping blocks can be detachably connected to the opposite side of each of the two sliding bars;

[0010] A clamping and positioning mechanism is provided between the clamping platform and the sliding bar.

[0011] Preferably, the flipping mechanism includes a transmission box one fixedly connected to the outside of the frame on the right side, and a transmission box two fixedly connected to the outside of the bottom end of the transmission box one. The upper and lower ends of the transmission box one are respectively rotatably connected to gear two and gear three through bearings. The right side of gear two and gear three is meshed with a vertical rack one. The upper and lower ends of the right side of the transmission box one are provided with movable grooves that slide with rack one. The left side of the clamping platform is rotatably connected to the frame on the left side through bearings, and the right side of the clamping platform is fixedly connected to gear two through a transmission shaft.

[0012] Preferably, the flipping mechanism further includes a worm gear rotatably connected to the right side of the transmission box II via a bearing, and a worm rotatably connected to the left side of the transmission box II via a bearing and meshing with the worm gear. A knob is fixedly connected to the top of the worm. The worm gear and gear III are fixedly connected via a transmission shaft.

[0013] Preferably, a T-shaped slot is provided in the middle of the opposite side of each of the two sliding bars, and a T-shaped block is fixedly connected to the side of the arc-shaped clamping block near the T-shaped slot, and the T-shaped block matches and engages with the T-shaped slot.

[0014] Preferably, the clamping and positioning mechanism includes a gear 1 rotatably connected to the middle of the bottom end of the clamping platform via a bearing, and a vertical plate fixedly connected to the opposite side of the two sliding bars. The bottom end of the vertical plate is fixedly connected to a rack 2 that meshes with the gear 1. Several positioning holes are provided at non-equidistant intervals on the front of the clamping platform. A locking screw is threadedly connected to the middle of the right vertical plate. The locking screw can be inserted into any one of the positioning holes.

[0015] Preferably, the clamping and positioning mechanism further includes dovetail grooves symmetrically formed at both ends of the top of the clamping platform, and dovetail sliders that slide in cooperation with the dovetail grooves are fixedly connected to both sides of the bottom end of the sliding bar.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This easy-to-grip positioning fixture for shoe processing, through the cooperation of a worm gear transmission mechanism and a gear rack mechanism, achieves adjustable clamping angle and self-locking fixation, effectively solving the technical problem of accidental deflection of the placement plate due to external force in the prior art, and ensuring stability during the processing.

[0018] 2. This easy-to-grip positioning fixture for shoe processing uses non-equidistant positioning holes in conjunction with locking screws to match the size variation of different shoe sizes by matching the spacing gradient of adjacent positioning holes. This enables clamping and positioning of shoes ranging from children's to adult shoes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the gear mounting structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the rack and pinion mounting structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the worm gear mounting structure of this utility model;

[0023] Figure 5 For the present utility model Figure 1 Enlarged diagram of point A in the middle.

[0024] In the diagram: 1. Base frame; 2. Machine frame; 3. Clamping platform; 4. Sliding bar; 5. Arc-shaped clamping block; 6. Transmission box one; 7. Transmission box two; 8. Gear two; 9. Gear three; 10. Rack one; 11. Movable groove; 12. Worm gear; 13. Worm; 14. Knob; 15. T-slot; 16. T-block; 17. Gear one; 18. Vertical plate; 19. Rack two; 20. Positioning hole; 21. Locking screw; 22. Dovetail groove; 23. Dovetail slider. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-5 As shown, this utility model provides a technical solution:

[0027] A positioning fixture for shoe processing that facilitates clamping includes a base frame 1, with frames 2 fixedly connected to the top of both sides. A clamping platform 3 is rotatably mounted between the two frames 2 via a flipping mechanism. The flipping mechanism includes a transmission box 6 fixedly connected to the outside of the right frame 2, and a transmission box 7 fixedly connected to the outside of the bottom of the transmission box 6. Gears 8 and 9 are rotatably connected to the upper and lower ends of the transmission box 6 via bearings. A vertical rack 10 meshes with the right side of gears 8 and 9. The upper and lower ends of the right side are provided with movable grooves 11 that slide with the rack 10. The left side of the clamping platform 3 is rotatably connected to the left frame 2 via bearings, and the right side of the clamping platform 3 is fixedly connected to the gear 8 via a transmission shaft. The flipping mechanism also includes a worm gear 12 rotatably connected to the right side of the transmission box 7 via bearings, and a worm 13 rotatably connected to the left side of the transmission box 7 via bearings and meshing with the worm gear 12. A knob 14 is fixedly connected to the top of the worm 13. The worm gear 12 and the gear 9 are fixedly connected via a transmission shaft. Sliding bars 4 are symmetrically arranged on both sides of the top of the clamping platform 3. Arc-shaped clamping blocks 5 are detachably connected to opposite sides of each sliding bar 4. T-shaped slots 15 are formed in the middle of opposite sides of each sliding bar 4. A T-shaped clamping block 16 is fixedly connected to the side of the arc-shaped clamping block 5 near the T-shaped slot 15, and the T-shaped clamping block 16 matches and engages with the T-shaped slot 15. A clamping and positioning mechanism is provided between the clamping platform 3 and the sliding bars 4. The clamping and positioning mechanism includes a gear 17 rotatably connected to the middle of the bottom end of the clamping platform 3 via a bearing, and a fixing... The vertical plate 18 is connected to the opposite side of the two sliding bars 4. The bottom end of the vertical plate 18 is fixedly connected to the rack 19 that meshes with the gear 17. Several positioning holes 20 are not equidistantly opened on the front of the clamping platform 3. The middle part of the right vertical plate 18 is threaded with a locking screw 21. The locking screw 21 can be inserted into any one of the positioning holes 20. The clamping and positioning mechanism also includes dovetail grooves 22 symmetrically opened at both ends of the top of the clamping platform 3. The bottom ends of the sliding bars 4 are fixedly connected to dovetail sliders 23 that slide in cooperation with the dovetail grooves 22.

[0028] In this embodiment, the worm gear transmission mechanism and the rack and pinion mechanism work together to achieve adjustable clamping angle and self-locking fixation, effectively solving the technical problem of accidental deflection of the placement plate due to external force in the prior art, and ensuring stability during the processing.

[0029] Furthermore, by using the non-equidistantly distributed positioning holes 20 in conjunction with the locking screws 21, the spacing gradient of adjacent positioning holes 20 is matched to the size variation of different shoe sizes, thereby achieving clamping and positioning from children's shoes to adult shoes.

[0030] Working principle: The operator first places the shoe on the clamping platform 3, holds the locking screw 21 and pushes the connected sliding strip 4, causing the sliding strip 4 to slide along the dovetail groove 22 on the clamping platform 3 via the dovetail slider 23 at the bottom. At the same time, the rack 19 at the bottom of the upright plate 18 drives the gear 17 to rotate. The gear 17 drives the rack 19 on the other side to make the symmetrical sliding strip 4 move synchronously in the opposite direction, thereby clamping the shoe with the two arc-shaped clamping blocks 5. After clamping and fixing, the operator immediately rotates the locking screw 21 to insert it into the clamping platform 3. The position of the sliding strip 4 is locked in the positioning hole 20 of the shoe size; then the knob 14 is rotated to drive the worm gear 13 to rotate, the worm gear 13 drives the worm wheel 12 to rotate, and the worm wheel 12 drives the gear 9 to rotate synchronously through the transmission shaft. The gear 9 meshes with the rack 10 to make the rack 10 slide up and down along the movable groove 11. At the same time, the gear 8 meshes with the rack 10 to drive the clamping table 3 to rotate around the bearing of the left frame 2, thereby adjusting the tilt angle of the clamping table 3 to the optimal operating position. After the above operations are completed, subsequent processing can be carried out.

[0031] It should be noted that in the specific implementation of the technical solution, the positioning holes 20 are arranged with a gradient spacing on the front of the clamping platform 3, and the spacing design is optimized based on the variation law of shoe size. In specific implementation, the center distance between adjacent positioning holes 20 varies in a step-like manner within the range of 8-12mm, with the smaller spacing area adapting to the size changes of children's shoes, and the larger spacing area corresponding to the size increments of adult shoes, thereby ensuring that the entire series of shoe sizes can obtain the best clamping and positioning effect.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A positioning jig for shoe processing which is easy to grip, characterized by: include The base frame (1) has a frame (2) fixedly connected to its top two sides. A clamping platform (3) is provided between the two frames (2) through a flipping mechanism. Sliding bars (4) are symmetrically arranged on both sides of the top of the clamping platform (3), and arc-shaped clamping blocks (5) can be detachably connected to the opposite side of the two sliding bars (4). A clamping and positioning mechanism is provided between the clamping platform (3) and the sliding bar (4).

2. The positioning jig for shoe processing according to claim 1, characterized in that: The flipping mechanism includes a transmission box 1 (6) fixedly connected to the outside of the frame (2) on the right side, and a transmission box 2 (7) fixedly connected to the outside of the bottom end of the transmission box 1 (6). The upper and lower ends of the transmission box 1 (6) are respectively connected to gear 2 (8) and gear 3 (9) through bearings. The right side of gear 2 (8) and gear 3 (9) is meshed with a vertical rack 1 (10). The upper and lower ends of the right side of the transmission box 1 (6) are provided with movable grooves (11) that slide with rack 1 (10). The left side of the clamping platform (3) is rotatably connected to the frame (2) on the left side through bearings. The right side of the clamping platform (3) is fixedly connected to gear 2 (8) through a transmission shaft.

3. The positioning jig for shoe processing according to claim 2, characterized in that: The flipping mechanism also includes a worm gear (12) rotatably connected to the right side of the transmission box (7) via a bearing, and a worm (13) rotatably connected to the left side of the transmission box (7) via a bearing and meshing with the worm gear (12). A knob (14) is fixedly connected to the top of the worm (13). The worm gear (12) and the gear (9) are fixedly connected via a transmission shaft.

4. The positioning fixture for shoe processing according to claim 1, characterized in that: T-shaped slots (15) are provided in the middle of the opposite side of the two sliding bars (4). A T-shaped block (16) is fixedly connected to the side of the arc-shaped clamp (5) near the T-shaped slot (15). The T-shaped block (16) matches and engages with the T-shaped slot (15).

5. The positioning fixture for shoe processing according to claim 1, characterized in that: The clamping and positioning mechanism includes a gear 1 (17) rotatably connected to the middle of the bottom end of the clamping platform (3) via a bearing, and a vertical plate (18) fixedly connected to the opposite side of the two sliding bars (4). The bottom end of the vertical plate (18) is fixedly connected to a rack 2 (19) that meshes with the gear 1 (17). Several positioning holes (20) are provided at non-equidistant intervals on the front of the clamping platform (3). A locking screw (21) is threadedly connected to the middle of the vertical plate (18) on the right side. The locking screw (21) can be inserted into any one of the positioning holes (20).

6. The positioning jig for shoe processing according to claim 5, characterized in that: The clamping and positioning mechanism also includes dovetail grooves (22) symmetrically opened at both ends of the top of the clamping platform (3), and dovetail sliders (23) that slide in cooperation with the dovetail grooves (22) are fixedly connected to both sides of the bottom end of the sliding bar (4).

Images