A high-precision positioning tool for machining mechanical parts
Patent Information
- Application Number
- CN202521242659.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-17
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-06-17
AI Technical Summary
现有的高精密机械零部件在加工时大多使用夹持固定加工，夹持固定后夹持位置固定，在进行加工时容易因工件夹持固定位置出现偏差导致加工效果出现偏差，而通过手动直接转动螺杆进行驱动，难以实现精准定位，且转动后的位置容易因震动导致松动，影响固定位置的精准性，无法满足现代精密加工对高精度的严苛要求，因此提出一种机械零部件加工高精度定位工装
1、本实用新型首先通过设置的第一电机、第二电机、转动盘控制第一螺纹杆、第二螺纹杆、第三螺纹杆的传动均通过蜗杆和蜗轮进行传动，可以提高传动的稳定性，且可以对顶部工件位置进行依次微调，并进行传动位置的自锁效果，保证定位位置的稳定性，并通过多结构的螺纹传动，可以实现高精度调节，满足高精度加工需求；
Smart Images
Figure CN224659168U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of positioning tooling technology, and more specifically, to a high-precision positioning tooling for machining mechanical parts. Background Technology
[0002] Parts processing is a modern manufacturing technology that manufactures or produces parts, sub-components or assemblies that make up machines and equipment. This technology is widely used in different industries and fields. In the process of machining mechanical parts, positioning fixtures are the core equipment to ensure machining accuracy, and their performance directly determines product quality and production efficiency. Most existing high-precision mechanical parts are processed using clamping and fixing. Once clamped, the clamping position is fixed. During processing, deviations in the clamping position can easily lead to deviations in the processing results. Manually rotating the screw directly makes it difficult to achieve precise positioning, and the position after rotation is easily loosened by vibration, affecting the accuracy of the fixed position. This cannot meet the stringent high-precision requirements of modern precision machining. Therefore, a high-precision positioning fixture for machining mechanical parts is proposed. Utility Model Content
[0003] In order to overcome the above-mentioned defects of the prior art, this utility model provides a high-precision positioning fixture for machining mechanical parts, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-precision positioning fixture for machining mechanical parts, including a worktable, a movable plate on the top of the worktable, an adjusting plate on the top of the movable plate, a first limiting slide groove on the top of the worktable, a through hole at the bottom of the inner cavity of the first limiting slide groove, and a first threaded rod in the middle of the first limiting slide groove. The rotation of the first threaded rod can control the sliding of the first limiting slider inside the first limiting slide groove, thereby driving the movable plate to move horizontally on the top of the worktable. The bottom of the movable plate is fixedly connected to a first limiting slider, and the top of the movable plate is provided with a second limiting groove. A second threaded rod is provided in the middle of the second limiting groove. The bottom of the adjusting plate is fixedly connected to a second limiting slider. Rotating the second threaded rod can control the second limiting slider to slide inside the second limiting groove, thereby allowing the adjusting plate to slide back and forth on the top of the movable plate for easy adjustment. The top of the adjusting plate is provided with multiple third limiting slide grooves, and the top of the adjusting plate is provided with multiple clamping plates. The bottom of the clamping plate is fixedly connected with a third limiting slider, and a buffer pad is fixedly connected to one side of the clamping plate. A third threaded rod is provided in the middle of the third limiting slide groove. Rotating the third threaded rod controls the third limiting slider to slide inside the third limiting slide groove, which can control the two clamping plates to move to the opposite side, thereby clamping and fixing the placed parts. The buffer pad improves the stability of clamping and plays a protective role. Each of the first, second, and third threaded rods has a worm gear fixedly connected to one end. A worm is provided at the bottom of the worm gear, and a rotating rod is connected to one end of the worm. One end of each of the rotating rods is connected to a rotating disk, a first motor, and a second motor, respectively. Through the cooperation of the rotating disk, the first motor, and the second motor, the rotating rod can be controlled to drive the worm to control the rotation of the worm gear, thereby controlling the rotation of the corresponding first, second, and third threaded rods. This facilitates driving and improves the accuracy of the drive, meeting the requirements of high-precision machining.
[0005] Preferably, the first limiting slider is adapted to the first limiting groove, the first limiting slider is disposed in the middle of the first limiting groove, the first threaded rod passes through the first limiting slider and is threadedly connected to the first limiting slider, and the stability of the moving plate is improved by the sliding of the first limiting slider inside the first limiting groove.
[0006] Preferably, a through hole is provided at one end of the inner cavity of the through hole, mounting ear plates are symmetrically fixedly connected around the perimeter of the worktable, and a control switch is provided on one side of the adjusting plate. The through hole facilitates the discharge of impurities and debris, improving the stability of the moving plate. The mounting ear plates facilitate installation and fixation, and the control switch facilitates control and use.
[0007] Preferably, the second limiting slider is adapted to the second limiting slide groove, the second limiting slider is disposed in the middle of the second limiting slide groove, the second threaded rod passes through the middle of the second limiting slider and is threadedly connected to the second limiting slider, and the second limiting slider slides inside the second limiting slide groove, which can improve the stability of the adjustment plate movement.
[0008] Preferably, the third limiting slider is disposed in the middle of the third limiting groove, the buffer pad is disposed on the opposite side of the two clamping plates, the third threaded rod passes through the third limiting slider and is threadedly connected to the third limiting slider, the threads at both ends of the third threaded rod are symmetrical, and the rotation of the third threaded rod controls the sliding of the third limiting slider inside the third limiting groove, which can drive the two clamping plates to move to the opposite side for convenient clamping.
[0009] Preferably, the worm gear and the worm are meshed, the rotating disk is disposed on one side of the worktable, the first motor is fixed on one side of the moving plate, and the second motor is fixed on one side of the adjusting plate. Through the cooperation of the worm gear and the worm, the rotation amplitude of the first threaded rod can be reduced, thereby achieving high-precision adjustment and improving the performance.
[0010] The technical effects and advantages of this utility model are as follows: 1. This utility model firstly controls the transmission of the first threaded rod, the second threaded rod, and the third threaded rod through a worm gear and a worm wheel by setting a first motor, a second motor, and a rotating disk. This can improve the stability of the transmission and allow for sequential fine adjustment of the position of the top workpiece. It also has a self-locking effect on the transmission position to ensure the stability of the positioning position. Furthermore, through the multi-structure threaded transmission, high-precision adjustment can be achieved to meet the requirements of high-precision processing. 2. This utility model also uses multiple clamping plates set on the top of the adjustment plate to clamp and fix the workpiece on the top of the adjustment plate by controlling the multiple clamping plates. It can be adapted to clamp and fix products of various shapes and specifications. The buffer pad can effectively buffer the clamping force and avoid indentation or deformation on the surface of the parts due to rigid contact. The through hole can discharge the chips that fall into the middle of the first limit slide groove during processing, which is convenient to use. In summary, through the interaction of the above-mentioned multiple functions, the position of the top workpiece can be finely adjusted sequentially to ensure the stability of the positioning position, and high-precision adjustment can be achieved to meet the requirements of high-precision machining. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0012] Figure 2 This is a schematic diagram of the structure of this utility model from another angle.
[0013] Figure 3 This is a schematic diagram showing the disassembled structure of the workbench, movable plate, and adjustment plate of this utility model.
[0014] Figure 4 This is a schematic diagram of the workbench, movable plate, and adjustment plate of this utility model from another angle.
[0015] Figure 5 This is a schematic diagram showing the disassembled structure of the adjusting plate and clamping plate of this utility model.
[0016] Figure 6 This is a schematic diagram of the connection structure between the rotating rod and the first threaded rod of this utility model.
[0017] The attached diagram is labeled as follows: 1. Workbench; 2. Moving plate; 3. Adjusting plate; 4. First limiting slide groove; 5. Through hole; 6. First threaded rod; 7. First limiting slider; 8. Second limiting slide groove; 9. Second threaded rod; 10. Second limiting slider; 11. Third limiting slide groove; 12. Clamping plate; 13. Third limiting slider; 14. Third threaded rod; 15. Buffer pad; 16. Worm gear; 17. Worm; 18. Rotating rod; 19. Rotating disk; 20. First motor; 21. Second motor; 22. Control switch; 23. Mounting ear plate. Detailed Implementation
[0018] 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.
[0019] As attached Figure 1-5 The high-precision positioning fixture for machining mechanical parts shown includes a worktable 1, a movable plate 2 on the top of the worktable 1, an adjusting plate 3 on the top of the movable plate 2, a first limiting slide groove 4 on the top of the worktable 1, a through hole 5 at the bottom of the inner cavity of the first limiting slide groove 4, and a first threaded rod 6 in the middle of the first limiting slide groove 4. The rotation of the first threaded rod 6 can control the sliding of the first limiting slider 7 inside the first limiting slide groove 4, thereby driving the movable plate 2 to move horizontally on the top of the worktable 1. The bottom of the movable plate 2 is fixedly connected to a first limiting slider 7, and the top of the movable plate 2 is provided with a second limiting groove 8. A second threaded rod 9 is provided in the middle of the second limiting groove 8. The bottom of the adjusting plate 3 is fixedly connected to a second limiting slider 10. Rotating the second threaded rod 9 can control the second limiting slider 10 to slide inside the second limiting groove 8, thereby allowing the adjusting plate 3 to slide back and forth on the top of the movable plate 2 for easy adjustment. The top of the adjusting plate 3 is provided with multiple third limiting slide grooves 11, and the top of the adjusting plate 3 is provided with multiple clamping plates 12. The bottom of the clamping plate 12 is fixedly connected with a third limiting slider 13, and a buffer pad 15 is fixedly connected to one side of the clamping plate 12. A third threaded rod 14 is provided in the middle of the third limiting slide groove 11. Rotating the third threaded rod 14 controls the third limiting slider 13 to slide inside the third limiting slide groove 11, which can control the two clamping plates 12 to move to the opposite side, thereby clamping and fixing the placed parts. The buffer pad 15 improves the stability of clamping and plays a protective role. A worm gear 16 is fixedly connected to one end of the first threaded rod 6, the second threaded rod 9, and the third threaded rod 14. A worm 17 is provided at the bottom of the worm gear 16, and a rotating rod 18 is connected to one end of the worm 17. One end of the multiple rotating rods 18 is respectively connected to a rotating disk 19, a first motor 20, and a second motor 21. Through the cooperation of the rotating disk 19, the first motor 20, and the second motor 21, the rotating rod 18 can be controlled to drive the worm 17 to control the rotation of the worm gear 16, thereby controlling the rotation of the corresponding first threaded rod 6, second threaded rod 9, and third threaded rod 14. This facilitates driving and improves the accuracy of driving, meeting the requirements of high-precision machining.
[0020] As attached Figure 1-6 As shown, the first limiting slider 7 is adapted to the first limiting groove 4. The first limiting slider 7 is located in the middle of the first limiting groove 4. The first threaded rod 6 passes through the first limiting slider 7 and is threadedly connected to the first limiting slider 7. One end of the inner cavity of the through hole 5 is provided with a through hole. Mounting ear plates 23 are symmetrically fixedly connected around the worktable 1. A control switch 22 is provided on one side of the adjusting plate 3. The second limiting slider 10 is adapted to the second limiting groove 8. The second limiting slider 10 is located in the middle of the second limiting groove 8. The second threaded rod 9 passes through the middle of the second limiting slider 10 and is threadedly connected to the second limiting slider 10. The third limiting slider 13 is located in the middle of the third limiting groove 11. The buffer pad 15 is located on the opposite side of the two clamping plates 12. The third threaded rod 14 passes through the third limiting slider 13 and is threadedly connected to the third limiting slider 13. The threads at both ends of the third threaded rod 14 are symmetrical. The worm gear 1 The first motor 20 is fixed to one side of the moving plate 2, and the second motor 21 is fixed to one side of the adjusting plate 3. The first limiting slider 7 slides inside the first limiting groove 4 to improve the stability of the moving plate 2. The through hole facilitates the discharge of impurities and debris, improving the stability of the moving plate 2. The mounting ear plate 23 facilitates installation and fixation. The control switch 22 facilitates control and use. The second limiting slider 10 slides inside the second limiting groove 8 to improve the stability of the adjusting plate 3. The rotation of the third threaded rod 14 controls the sliding of the third limiting slider 13 inside the third limiting groove 11, which can drive the two clamping plates 12 to move to the opposite side for easy clamping. Through the cooperation of the worm gear 16 and the worm 17, the rotation amplitude of the first threaded rod 6 can be reduced, thereby achieving high-precision adjustment and improving the use effect.
[0021] The working principle of this utility model is as follows: When in use, the workpiece is placed on the top of the adjusting plate 3, and then the second motor 21 is started to control the clamping plate 12 to clamp and fix the workpiece. The rotating disk 19 is rotated to control the moving plate 2 to move horizontally, and the first motor 20 is started to control the adjusting plate 3 to move back and forth. The position of the workpiece on the top of the adjusting plate 3 can be adjusted, which is convenient for high-precision processing. During processing, multiple clamping plates 12 can be moved to different positions to clamp and fix products of different specifications, thereby improving the performance.
[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 high-precision positioning fixture for machining mechanical parts, comprising a worktable (1), characterized in that: The top of the workbench (1) is provided with a movable plate (2), the top of the movable plate (2) is provided with an adjustment plate (3), the top of the workbench (1) is provided with a first limiting slide groove (4), the bottom of the inner cavity of the first limiting slide groove (4) is provided with a through hole (5), and the middle of the first limiting slide groove (4) is provided with a first threaded rod (6). The bottom of the movable plate (2) is fixedly connected to a first limiting slider (7), the top of the movable plate (2) is provided with a second limiting groove (8), the middle of the second limiting groove (8) is provided with a second threaded rod (9), and the bottom of the adjusting plate (3) is fixedly connected to a second limiting slider (10). The top of the adjusting plate (3) is provided with multiple third limiting slide grooves (11), the top of the adjusting plate (3) is provided with multiple clamping plates (12), the bottom of the clamping plate (12) is fixedly connected with a third limiting slider (13), a buffer pad (15) is fixedly connected to one side of the clamping plate (12), and a third threaded rod (14) is provided in the middle of the third limiting slide groove (11). One end of the first threaded rod (6), the second threaded rod (9), and the third threaded rod (14) is fixedly connected to a worm gear (16). The bottom of the worm gear (16) is provided with a worm (17). One end of the worm (17) is connected to a rotating rod (18). One end of the plurality of rotating rods (18) is respectively connected to a rotating disk (19), a first motor (20), and a second motor (21).
2. The high-precision positioning fixture for machining mechanical parts according to claim 1, characterized in that: The first limiting slider (7) is adapted to the first limiting groove (4). The first limiting slider (7) is located in the middle of the first limiting groove (4). The first threaded rod (6) passes through the first limiting slider (7) and is threadedly connected to the first limiting slider (7).
3. The high-precision positioning fixture for machining mechanical parts according to claim 1, characterized in that: The inner cavity of the through hole (5) is provided with a through hole at one end, and mounting ear plates (23) are symmetrically fixed around the workbench (1). A control switch (22) is provided on one side of the adjustment plate (3).
4. The high-precision positioning fixture for machining mechanical parts according to claim 1, characterized in that: The second limiting slider (10) is adapted to the second limiting groove (8). The second limiting slider (10) is located in the middle of the second limiting groove (8). The second threaded rod (9) passes through the middle of the second limiting slider (10) and is threadedly connected to the second limiting slider (10).
5. The high-precision positioning fixture for machining mechanical parts according to claim 1, characterized in that: The third limiting slider (13) is located in the middle of the third limiting groove (11), the buffer pad (15) is located on the opposite side of the clamping plates (12) on both sides, the third threaded rod (14) passes through the third limiting slider (13) and is threadedly connected to the third limiting slider (13), and the threads at both ends of the third threaded rod (14) are symmetrical.
6. The high-precision positioning fixture for machining mechanical parts according to claim 1, characterized in that: The worm gear (16) and worm (17) mesh with each other, the rotating disk (19) is set on one side of the workbench (1), the first motor (20) is fixed on one side of the moving plate (2), and the second motor (21) is fixed on one side of the adjusting plate (3).