Part clamp
By designing a fixture with limiting and fixing components, the problem of existing fixtures being unable to be adjusted was solved, achieving multi-size adaptation and stable clamping, thereby improving production efficiency and machining accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUZHOU XINXIN PRECISION MACHINERY CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-05-08
AI Technical Summary
Existing part fixtures cannot be flexibly adjusted to accommodate parts of different sizes, resulting in long production preparation time and high costs, and unstable clamping affects machining accuracy.
A clamping device including a limiting component and a fixing component is designed. The clamping length and size can be adjusted through a toothed plate and gear structure, and the clamping stability is ensured by the fixing component.
It enables the fixture to be quickly adapted to parts of various sizes, improving production efficiency and machining accuracy, and preventing part position deviation.
Smart Images
Figure CN224209494U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal processing, and in particular to a parts clamping fixture. Background Technology
[0002] A part fixture is a specially designed tool used to fix and position workpieces during machining, inspection, assembly or other production processes. Its main function is to ensure that the workpiece maintains the correct position and orientation during machining.
[0003] Although such fixtures are frequently used in machining, they still have some problems. For example, some existing part fixtures cannot be flexibly adjusted according to the actual length or width of the part. This means that when different sized parts need to be machined, the fixtures need to be replaced or redesigned, increasing production preparation time and costs. This not only increases the types and quantities of fixtures, but also increases production costs and maintenance difficulties. At the same time, some fixtures are not stable enough. Even if the part is held by the fixture, the fixture may undergo slight displacement during machining due to external forces, such as cutting forces and vibrations, causing the part's position to shift. This shift will greatly affect machining accuracy and reduce product quality. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a parts clamp that, through a limiting component, allows the clamp to clamp parts according to their length and size.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A parts clamping fixture includes a worktable. A first clamping plate is slidably connected to the top left side of the worktable. The bottom end of the first clamping plate passes through the worktable and is fixedly connected to a connecting post. A first toothed plate is fixedly connected to the bottom end of the connecting post. A limiting component is provided on the outer wall of the first toothed plate. The first toothed plate is connected to a second toothed plate through the limiting component. Another connecting post is fixedly connected to the top end of the second toothed plate. A second clamping plate is fixedly connected to the top end of the other connecting post. The bottom end of the second clamping plate is slidably connected to the top end of the worktable. A handle is fixedly connected to the left end of the first clamping plate. The handle is used to pull the first clamping plate to slide to the left.
[0007] Furthermore, the limiting component includes a gear meshing with the outer wall of the first toothed plate, a second toothed plate meshing with the outer wall of the gear, a fixed column rotatably connected to the inner wall of the gear, and the bottom end of the fixed column rotatably connected to the bottom end of the inner wall of the worktable.
[0008] Furthermore, the bottom ends of the first clamping plate and the second clamping plate are both fixedly connected to sliding columns, and the top of the outer wall of the worktable is provided with a sliding groove. The sliding groove is used to allow the sliding column to slide, and the sliding column is used to ensure the stability of the first clamping plate and the second clamping plate.
[0009] Furthermore, connecting boxes are fixedly connected to the front and rear outer walls of the handle, and a fixing component is provided on the inner wall of the connecting box. The handle is relatively fixed to the worktable through the fixing component.
[0010] Furthermore, the positioning component includes round tubes fixedly connected to the left and right sides of the inner wall of the connecting box. The inner walls of the two round tubes are fixedly connected to compression springs. The bottom ends of the two compression springs are fixedly connected to a base block. The left and right sides of the base block are rotatably connected to pulleys. The base block slides inside the connecting box through the pulleys.
[0011] Furthermore, the top right side of the workbench is provided with several slots, the size of which is adapted to the bottom block.
[0012] This utility model has the following beneficial effects:
[0013] 1. In this utility model, by using a limiting component, the fixture can clamp the parts according to their length and size, making the fixture suitable for parts of various sizes. This reduces the time required to change fixtures, allowing the production line to adapt to the production of different parts more quickly and improving overall production efficiency.
[0014] 2. In this utility model, the fixed-point component enables the fixture to be positioned at a fixed point after clamping, so that the part can remain stable during the processing and prevent the part position from shifting due to external force, thereby improving processing accuracy and efficiency. Attached Figure Description
[0015] Figure 1 This is a perspective view of a parts clamping fixture proposed in this utility model;
[0016] Figure 2 This is a cross-sectional view of the worktable of a parts fixture proposed in this utility model;
[0017] Figure 3 This is a cross-sectional view of the connecting box of a parts fixture proposed in this utility model.
[0018] Legend:
[0019] 1. Workbench; 2. First clamping plate; 3. Second clamping plate; 4. Handle; 5. Connecting box; 6. Base block; 7. Slot; 8. Slide groove; 9. Slide column; 10. Connecting column; 11. First toothed plate; 12. Gear; 13. Fixed column; 14. Second toothed plate; 15. Round tube; 16. Compression spring; 17. Pulley. Detailed Implementation
[0020] 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.
[0021] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a parts fixture, including a worktable 1. A first clamping plate 2 is slidably connected to the top left side of the worktable 1. The bottom end of the first clamping plate 2 passes through the worktable 1 and is fixedly connected to a connecting post 10. The bottom end of the connecting post 10 is fixedly connected to a first toothed plate 11. A limiting component is provided on the outer wall of the first toothed plate 11. The limiting component includes a gear 12 meshing with the outer wall of the first toothed plate 11. A second toothed plate 14 meshes with the outer wall of the gear 12. A fixing post 13 is rotatably connected to the inner wall of the gear 12. The bottom end of the fixing post 13 is rotatably connected to the bottom end of the inner wall of the worktable 1. The first toothed plate 11 is connected to the second toothed plate 14 through the limiting component. Another connecting post 10 is fixedly connected to the top of the second toothed plate 14. A second clamping plate 3 is fixedly connected to the top of the other connecting post 10. Sliding posts 9 are fixedly connected to the bottom ends of both the first clamping plate 2 and the second clamping plate 3. The outer wall of the worktable 1... A groove 8 is provided at the top, which is used to allow the sliding column 9 to slide. The sliding column 9 is used to ensure the stability of the first clamping plate 2 and the second clamping plate 3. The bottom end of the second clamping plate 3 is slidably connected to the top of the workbench 1. A handle 4 is fixedly connected to the left end of the first clamping plate 2. The handle 4 is used to pull the first clamping plate 2 to slide to the left. Connecting boxes 5 are fixedly connected to the outer walls of the front and rear sides of the handle 4. A fixing component is provided on the inner wall of the connecting box 5. The handle 4 is relatively fixed to the workbench 1 through the fixing component. The fixing component includes round tubes 15 fixedly connected to the left and right sides of the inner wall of the connecting box 5. Compression springs 16 are fixedly connected to the inner walls of the two round tubes 15. The bottom ends of the two compression springs 16 are fixedly connected to the bottom block 6. Pulleys 17 are rotatably connected to the left and right sides of the bottom block 6. The bottom block 6 slides inside the connecting box 5 through the pulleys 17. Several slots 7 are provided on the right side of the top of the workbench 1. The size of the slots 7 is adapted to the bottom block 6.
[0022] Specifically, the operator retrieves the part to be processed from the parts library. Based on the specific dimensions of the part, the operator adjusts the clamping device, then grasps the base block 6 and gently pushes it upwards. With the assistance of the pulley 17, the base block 6 slowly rises along the inner wall of the connecting box 5. This action causes the base block 6 to apply pressure to the compression spring 16, resulting in the compression spring 16 being squeezed and contracting inwards. As the base block 6 rises, it gradually disengages from the slot 7 on the worktable 1. Once both the left and right base blocks 6 have disengaged from the slot 7, the operator stops pushing the base block 6 upwards. After confirming that the base block 6 has disengaged from the slot 7, the operator begins to pull the handle 4 horizontally to the left. When it is confirmed that the handle 4 can move the first clamping plate 2 to the left, it indicates that the restriction on the handle 4 and the first clamping plate 2 has been released. Then, continue to pull the handle 4, causing the first clamping plate 2 to move to the left on the guide rail. At the same time, the connecting post 10 at the bottom of the first clamping plate 2 is connected to the first toothed plate 11, thereby driving the first toothed plate 11 to move to the left. Then, the movement of the first toothed plate 11 causes the gear 12 meshing with it to rotate on the fixed post 13. The rotation of the gear 12 further drives the second toothed plate 14 on the other side to move to the right, opposite to the movement direction of the first toothed plate 11. Then, as the first toothed plate 11 moves, the connecting post at its top moves to the right. 10 moves the second clamping plate 3 to the right, creating enough space for the part to be placed. After enough space is created between the first clamping plate 2 and the second clamping plate 3, the operator can place the part to be processed in the space between them. Then, by pushing the handle 4 in the opposite direction, the entire clamping structure is reversed, causing the first clamping plate 2 and the second clamping plate 3 to gradually move closer until the part is firmly clamped. Then, the operator releases the hand holding the bottom block 6, causing the compression spring 16 to return to its original position. The bottom block 6 is then re-inserted into the slot 7 on the worktable 1. The operator then gently shakes the first clamping plate 2 and the second clamping plate 3 to confirm that they cannot move, indicating that the part has been fixed.
[0023] Working principle: First, take out the part to be processed. Then, according to the length or size of the part, push the bottom blocks 6 on both sides of the handle 4 upwards. With the help of the pulley 17, the bottom blocks 6 slowly move upwards in the inner wall of the connecting box 5, so that the bottom blocks 6 squeeze the compression spring 16, causing the compression spring 16 to contract under force. Then, by moving the bottom blocks 6 upwards, the bottom blocks 6 leave the slot 7 on the worktable 1. After the bottom blocks 6 on both sides have left, pull the handle 4 to the left. When it is determined that the handle 4 can move to the left with the first clamping plate 2, the restriction on the handle 4 and the first clamping plate 2 is considered to be released. Then, continue to pull the handle 4, so that the handle 4 moves to the left with the first clamping plate 2. Then, by moving the first clamping plate 2 to the left, the first clamping plate 2 pulls the first toothed plate 11 to the left through the corresponding connecting post 10 at the bottom. Then, by moving the first toothed plate 11 to the left, the first toothed plate 11... 1. Drive gear 12 to rotate on fixed post 13. Then, through the rotation of gear 12, the second toothed plate 14 on the other side of gear 12 is pushed by gear 12 to move in the opposite direction to the first toothed plate 11. Then, through the movement of the first toothed plate 11, the first toothed plate 11 drives the second clamping plate 3 to move to the right through the other connecting post 10 at the top. After the first clamping plate 2 and the second clamping plate 3 have enough space, the part can be placed in the space after the first clamping plate 2 and the second clamping plate 3 have opened. Then push handle 4 in the opposite direction to make the above structure rotate in the opposite direction. After the first clamping plate 2 and the second clamping plate 3 clamp the part, release the hand holding the bottom block 6. The compression spring 16 returns to its original position and locks the bottom block 6 into the corresponding slot 7. Then shake the first clamping plate 2 and the second clamping plate 3. After confirming that they cannot move, it is considered that the fixing is completed. Then the part can be processed.
[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A parts fixture, comprising a worktable (1), characterized in that: A first clamping plate (2) is slidably connected to the top left of the workbench (1). The bottom end of the first clamping plate (2) passes through the workbench (1) and is fixedly connected to a connecting column (10). The bottom end of the connecting column (10) is fixedly connected to a first toothed plate (11). A limiting component is provided on the outer wall of the first toothed plate (11). The first toothed plate (11) is connected to a second toothed plate (14) through the limiting component. The top end of the second toothed plate (14) is fixedly connected to another connecting column (10). The top end of the other connecting column (10) is fixedly connected to a second clamping plate (3). The bottom end of the second clamping plate (3) is slidably connected to the top of the workbench (1). A handle (4) is fixedly connected to the left end of the first clamping plate (2). The handle (4) is used to pull the first clamping plate (2) to slide to the left.
2. A parts fixture according to claim 1, characterized in that: The limiting component includes a gear (12) meshing with the outer wall of the first toothed plate (11), a second toothed plate (14) meshing with the outer wall of the gear (12), a fixed column (13) rotatably connected to the inner wall of the gear (12), and the bottom end of the fixed column (13) rotatably connected to the bottom end of the inner wall of the workbench (1).
3. A parts fixture according to claim 1, characterized in that: The bottom ends of the first clamping plate (2) and the second clamping plate (3) are fixedly connected with sliding columns (9). The top of the outer wall of the worktable (1) is provided with a sliding groove (8). The sliding groove (8) is used to allow the sliding column (9) to slide. The sliding column (9) is used to ensure the stability of the first clamping plate (2) and the second clamping plate (3).
4. A parts fixture according to claim 1, characterized in that: The front and rear outer walls of the handle (4) are fixedly connected to the connecting box (5), and the inner wall of the connecting box (5) is provided with a fixing component. The handle (4) is relatively fixed on the workbench (1) through the fixing component.
5. A parts fixture according to claim 4, characterized in that: The positioning component includes round tubes (15) fixedly connected to the left and right sides of the inner wall of the connecting box (5). The inner walls of the two round tubes (15) are fixedly connected to compression springs (16). The bottom ends of the two compression springs (16) are fixedly connected to a base block (6). The left and right sides of the base block (6) are rotatably connected to pulleys (17). The base block (6) slides inside the connecting box (5) through the pulleys (17).
6. A parts fixture according to claim 5, characterized in that: The top right side of the workbench (1) is provided with several slots (7), the size of which is adapted to the bottom block (6).