High-precision CNC machining clamp for hardware parts
The worm gear and motor-driven clamping system solves the problem of cumbersome clamping changes in CNC machining of high-precision hardware parts, enabling rapid clamping and stable clamping, thus improving machining accuracy and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-03-31
AI Technical Summary
Existing CNC machining fixtures for high-precision hardware parts require changing different fixtures according to different sizes and models, which is cumbersome and inconvenient.
A clamping system comprising a worm gear, a worm wheel, a column, and a motor drive was designed. The worm gear and worm wheel drive enables the sliding clamping of the clamping plate, and the motor-driven bidirectional threaded rod adjusts the height and angle of the clamp to accommodate hardware parts of different sizes and shapes.
It enables the fixture to quickly adapt to clamping hardware parts of different sizes and shapes, ensuring processing stability and accuracy, and simplifying the operation process.
Smart Images
Figure CN224059244U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-precision hardware parts technology, and in particular to a high-precision hardware parts CNC machining fixture. Background Technology
[0002] High-precision hardware parts refer to metal components that require extremely high precision and strict dimensional tolerance control during manufacturing. CNC machining fixtures are tools and devices used to stabilize and precisely position workpieces during Computer Numerical Control (CNC) machining. A high-precision hardware parts CNC machining fixture is a tool specifically designed for fixing and positioning high-precision hardware parts during CNC machining. To maintain the stability of parts during CNC machine tool machining and ensure that the parts do not shift during processing, a high-precision hardware parts CNC machining fixture is used.
[0003] High-precision CNC machining fixtures for hardware parts are tools used to fix hardware parts during CNC machining. In the past, when machining hardware parts, it was necessary to change different fixtures to fix them according to different sizes and models of hardware parts, which was cumbersome and inconvenient to use. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a high-precision CNC machining fixture for hardware parts, which aims to improve the problem of needing to change different fixtures to clamp and fix different hardware parts.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision CNC machining fixture for hardware parts, comprising a bracket, a first motor fixedly connected to the outer wall of the bracket, a worm gear fixedly installed at the output end of the first motor, the outer wall of the worm gear rotatably connected to the inside of the bracket, a worm wheel meshing with the tooth end of the worm gear, a first column fixedly connected to the inside of the worm wheel, a first rotating rod fixedly connected to the outer wall of the first column, a second column rotatably connected to the inside of the first rotating rod, a fixing block fixedly connected to the outer wall of the second column, a first connecting shaft fixedly connected to the inside of the fixing block, a second rotating rod rotatably connected to the outer wall of the first connecting shaft, a second connecting shaft fixedly connected to the inside of the second rotating rod, the outer wall of the second connecting shaft rotatably connected to the inside of the bracket, a clamping plate fixedly connected to the outer wall of the fixing block, and a support assembly provided on the lower surface of the bracket for auxiliary fixing.
[0006] Preferably, the support assembly includes a support plate, the upper surface of which is fixedly connected to the lower surface of the bracket, and a connecting piece is fixedly connected to the lower surface of the support plate.
[0007] Preferably, a first rotating shaft is rotatably connected inside the connecting piece, a rotating plate is fixedly connected to the outer wall of the first rotating shaft, and a second rotating shaft is rotatably connected inside the rotating plate.
[0008] Preferably, a slider is fixedly connected to the outer wall of the second rotating shaft, a storage block is slidably connected to the outer wall of the slider, and a base plate is fixedly connected to the lower surface of the storage block.
[0009] Preferably, a storage plate is fixedly connected to the upper surface of the storage block, a second motor is fixedly connected to the outer wall of the storage plate, and a bidirectional threaded rod is fixedly provided at the output end of the second motor.
[0010] Preferably, the outer wall of the bidirectional threaded rod is rotatably connected to the inside of the shelf, and the outer wall of the bidirectional threaded rod is threadedly connected to a threaded block, the outer wall of the threaded block being fixedly connected to the outer wall of the slider.
[0011] Preferably, a third rotating shaft is fixedly connected inside the rotating plate, a rotating block is rotatably connected to the outer wall of the third rotating shaft, and a fixed shaft is fixedly connected inside the rotating block.
[0012] Preferably, a fixing plate is rotatably connected to the outer wall of the fixed shaft, and the lower surface of the fixing plate is fixedly connected to the upper surface of the base plate.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, starting the first motor drives the worm gear to rotate, the worm gear drives the worm wheel to rotate, the worm wheel drives the rotating rod to rotate through the first column, and pushes the fixed block to slide through the second column. The fixed block drives the rotating rod to rotate through the first connecting shaft, thereby driving the clamping plate to slide, so as to achieve the effect of clamping and fixing hardware parts of different sizes.
[0015] 2. In this utility model, starting the second motor drives the bidirectional threaded rod to rotate, the bidirectional threaded rod drives the threaded block to slide, and drives the slider to slide. The slider drives the rotating plate to rotate through the second rotating shaft, and the rotating plate drives the rotating block to rotate through the third rotating shaft. The height of the fixture is adjusted by the rotation of the rotating block and the rotating plate. When the heights on both sides are not adjusted in a consistent manner, the angle can be adjusted, so as to achieve the effect of adjusting the height and angle of the fixture to meet the processing needs of different hardware parts. Attached Figure Description
[0016] Figure 1 This is a perspective view of a high-precision CNC machining fixture for hardware parts proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of a partial structure of the worm gear in a high-precision CNC machining fixture for hardware parts proposed in this utility model.
[0018] Figure 3 This is a partial structural diagram of the slider of a high-precision CNC machining fixture for hardware parts proposed in this utility model.
[0019] Legend:
[0020] 1. Bracket; 2. First motor; 3. Worm gear; 4. Worm wheel; 5. Column 1; 6. Rotating rod 1; 7. Column 2; 8. Fixing block; 9. Connecting shaft 1; 10. Rotating rod 2; 11. Connecting shaft 2; 12. Clamping plate; 13. Support plate; 14. Connecting piece; 15. First rotating shaft; 16. Rotating plate; 17. Second rotating shaft; 18. Slider; 19. Storage block; 20. Storage plate; 21. Second motor; 22. Bidirectional threaded rod; 23. Threaded block; 24. Third rotating shaft; 25. Rotating block; 26. Fixing shaft; 27. Fixing piece; 28. Base plate. Detailed Implementation
[0021] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0022] Reference Figure 1 - Figure 2 This utility model provides an embodiment of a high-precision CNC machining fixture for hardware parts, comprising a bracket 1, a first motor 2 fixedly connected to the outer wall of the bracket 1, a worm gear 3 fixedly mounted at the output end of the first motor 2, the outer wall of the worm gear 3 rotatably connected to the inside of the bracket 1, a worm wheel 4 meshing with the tooth end of the worm gear 3, a column 5 fixedly connected to the inside of the worm wheel 4, a rotating rod 6 fixedly connected to the outer wall of the column 5, a column 7 rotatably connected to the inside of the rotating rod 6, a fixing block 8 fixedly connected to the outer wall of the column 7, a connecting shaft 9 fixedly connected to the inside of the fixing block 8, a rotating rod 10 rotatably connected to the outer wall of the connecting shaft 9, a connecting shaft 11 fixedly connected to the inside of the rotating rod 10, a clamping plate 12 fixedly connected to the outer wall of the connecting shaft 11, and a support assembly provided on the lower surface of the bracket 1 for auxiliary fixing.
[0023] Specifically, the bracket 1 fixes the first motor 2, which in turn causes the worm gear 4 to rotate via the worm 3, driving the column 5 to rotate. The column 5 fixes the rotating rod 6, which in turn pushes the fixing block 8 to slide via the second column 7. The fixing block 8 supports the second column 7 and the connecting shaft 9, causing the rotating rod 10 to rotate via the connecting shaft 9. The connecting shaft 11 rotates inside the bracket 1, fixing the rotating rod 10. The fixing block 8 fixes the clamping plate 12, which then slides via the fixing block 8. The sliding between the clamping plates 12 allows for clamping of hardware parts of different sizes. The transmission via the worm 3 and worm gear 4 provides more precise clamping force adjustment, ensuring that the hardware parts maintain stable positioning during processing and preventing offset during processing that could affect processing accuracy.
[0024] Reference Figure 1 The support assembly includes a support plate 13, the upper surface of which is fixedly connected to the lower surface of the bracket 1, and a connecting piece 14 is fixedly connected to the lower surface of the support plate 13.
[0025] Specifically, the support plate 13 has the function of fixing the bracket 1 and providing stable support for the bracket 1. The support plate 13 also has the function of fixing the connecting piece 14, and then the connection is made through the connecting piece 14.
[0026] Reference Figure 1 and Figure 3 The connecting piece 14 is rotatably connected to a first rotating shaft 15. A rotating plate 16 is fixedly connected to the outer wall of the first rotating shaft 15. A second rotating shaft 17 is rotatably connected to the inside of the rotating plate 16. A slider 18 is fixedly connected to the outer wall of the second rotating shaft 17. A storage block 19 is slidably connected to the outer wall of the slider 18. A base plate 28 is fixedly connected to the lower surface of the storage block 19. A storage plate 20 is fixedly connected to the upper surface of the storage block 19. A second motor 21 is fixedly connected to the outer wall of the storage plate 20. A double-ended motor is fixedly installed at the output end of the second motor 21. The outer wall of the threaded rod 22 is rotatably connected to the inside of the shelf plate 20. The outer wall of the threaded rod 22 is threadedly connected to a threaded block 23. The outer wall of the threaded block 23 is fixedly connected to the outer wall of the slider 18. The inside of the rotating plate 16 is fixedly connected to a third rotating shaft 24. The outer wall of the third rotating shaft 24 is rotatably connected to a rotating block 25. The inside of the rotating block 25 is fixedly connected to a fixed shaft 26. The outer wall of the fixed shaft 26 is rotatably connected to a fixed piece 27. The lower surface of the fixed piece 27 is fixedly connected to the upper surface of the base plate 28.
[0027] Specifically, the storage block 19 is fixed to the upper surface of the base plate 28, which in turn fixes the storage plate 20. The storage plate 20 fixes the second motor 21, which in turn allows the threaded block 23 to slide through the rotation of the bidirectional threaded rod 22. The threaded block 23 fixes the slider 18, which in turn causes the second rotating shaft 17 to rotate through the sliding of the slider 18. The rotating plate 16 fixes the third rotating shaft 24, which in turn allows the rotating block 25 to rotate through the rotation of the third rotating shaft 24, which in turn causes the fixed shaft 26 to rotate. The fixing plate 27 is fixed to the upper surface of the base plate 28, which supports the fixed shaft 26. The height of the support plate 13 can be adjusted by adjusting the rotation of the rotating plate 16 and the rotating block 25. When the two sides are adjusted to different heights, the support plate 13 can be tilted to adjust the angle. By flexibly adjusting the height and angle of the fixture, it can be adapted to the processing needs of hardware parts with different heights and angles.
[0028] Working principle: When this fixture is needed, the distance between the clamping plates 12 is adjusted according to the different sizes of hardware parts. The first motor 2 on the outer wall of the bracket 1 is started. The first motor 2 drives the worm gear 3 to rotate inside the bracket 1. When the worm gear 3 rotates, it drives the worm wheel 4 at the tooth end to rotate through meshing. When the worm wheel 4 rotates, it simultaneously drives the internal column 5 to rotate. When the column 5 rotates, it drives the rotating rod 6 on the outer wall to rotate simultaneously. The rotation of the rotating rod 6 pushes the fixing block 8 on the outer wall to slide through the internal column 7. During the sliding process of the fixing block 8, it will be connected internally... Shaft 9 drives rotating rod 10 to rotate, which in turn drives internal connecting shaft 11 to rotate simultaneously. This rotation of rotating rods 16 and 10 causes the fixing block 8 to slide, which in turn causes clamping plate 12 to slide. The sliding of clamping plate 12 clamps hardware parts of different sizes, achieving the desired processing and fixing effect for various hardware parts. During use, the height and angle of the clamp need to be adjusted according to the height of different parts and processing requirements. When adjustment is needed, the second motor 21 on the outer wall of the storage plate 20 is activated. 21 will drive the bidirectional threaded rod 22 to rotate inside the shelf 20. When the bidirectional threaded rod 22 rotates, it will drive the threaded block 23 on the outer wall to slide. The threaded block 23 will drive the slider 18 on the outer wall to slide on the inner wall of the shelf 19. When the slider 18 slides, it will drive the rotating plate 16 to rotate through the second rotating shaft 17 on the outer wall. When the rotating plate 16 rotates, it will drive the first rotating shaft 15 to rotate. When the rotating plate 16 rotates, it will simultaneously drive the third rotating shaft 24 inside to rotate. The third rotating shaft 24 will drive the rotating block 25 on the outer wall to rotate. The rotating block 25 will drive the fixed shaft 26 to rotate inside the fixed plate 27. The height of the support plate 13 is adjusted by the rotation of the rotating plate 16 and the rotating block 25, thereby adjusting the height of the fixture. Since there are two-way threaded rods 22 on both sides above the base plate 28, the support plate 13 can be tilted when the heights of the two sides are different, thereby adjusting the angle of the fixture. This fixture can not only meet the processing needs of hardware parts of different sizes and ensure the stability of the parts during processing, but also adjust the height and angle of the fixture to meet the processing needs of different hardware parts, ensuring that the hardware parts are always in the correct processing position and angle.
[0029] 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 high-precision hardware part CNC machining clamp, comprising a support (1), characterized in that: The outer wall of the support (1) is fixedly connected with a first motor (2), the output end of the first motor (2) is fixedly provided with a worm (3), the outer wall of the worm (3) is rotatably connected in the inner portion of the support (1), the tooth end of the worm (3) is meshingly connected with a worm gear (4), the inner portion of the worm gear (4) is fixedly connected with a first column (5), the outer wall of the first column (5) is rotatably connected in the inner portion of the support (1), the outer wall of the first column (5) is fixedly connected with a first rotating rod (6), the inner portion of the first rotating rod (6) is rotatably connected with a second column (7), the outer wall of the second column (7) is fixedly connected with a fixed block (8), the inner portion of the fixed block (8) is fixedly connected with a first connecting shaft (9), the outer wall of the first connecting shaft (9) is rotatably connected with a second rotating rod (10), the inner portion of the second rotating rod (10) is fixedly connected with a second connecting shaft (11), the outer wall of the second connecting shaft (11) is rotatably connected in the inner portion of the support (1), the outer wall of the fixed block (8) is fixedly connected with a clamping plate (12), the lower surface of the support (1) is provided with a supporting assembly, and the supporting assembly is used for auxiliary fixing.
2. The high-precision hardware part CNC machining clamp according to claim 1, characterized in that: The supporting assembly comprises a supporting plate (13), and the upper surface of the supporting plate (13) is fixedly connected to the lower surface of the support (1).
3. The high-precision hardware part CNC machining clamp according to claim 2, characterized in that: The inner portion of the connecting piece (14) is rotatably connected with a first rotating shaft (15), and the outer wall of the first rotating shaft (15) is fixedly connected with a rotating plate (16).
4. The high-precision hardware part CNC machining clamp according to claim 3, characterized in that: The outer wall of the second rotating shaft (17) is fixedly connected with a sliding block (18), the outer wall of the sliding block (18) is slidably connected with a storage block (19), and the lower surface of the storage block (19) is fixedly connected with a bottom plate (28).
5. The high-precision hardware part CNC machining clamp according to claim 4, characterized in that: The upper surface of the storage block (19) is fixedly connected with a storage plate (20), the outer wall of the storage plate (20) is fixedly connected with a second motor (21), and the output end of the second motor (21) is fixedly provided with a bidirectional threaded rod (22).
6. The high-precision hardware part CNC machining clamp according to claim 5, characterized in that: The outer wall of the bidirectional threaded rod (22) is rotatably connected in the inner portion of the storage plate (20), the outer wall of the bidirectional threaded rod (22) is threadedly connected with a threaded block (23), and the outer wall of the threaded block (23) is fixedly connected to the outer wall of the sliding block (18).
7. The high-precision hardware part CNC machining clamp according to claim 3, characterized in that: The inner portion of the rotating plate (16) is fixedly connected with a third rotating shaft (24), the outer wall of the third rotating shaft (24) is rotatably connected with a rotating block (25), and the inner portion of the rotating block (25) is fixedly connected with a fixed shaft (26).
8. The high-precision hardware part CNC machining clamp according to claim 7, characterized in that: The outer wall of the fixed shaft (26) is rotatably connected with a fixed piece (27), and the lower surface of the fixed piece (27) is fixedly connected to the upper surface of the bottom plate (28).