Output shaft machining clamp
By designing a clamp that includes a base, bracket, turntable, and motor drive, the problem of traditional output shaft clamps being difficult to hold and rotate is solved, achieving efficient fixing and rotation of output shafts of various sizes and simplifying the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SUNWAY PRECISION FORGING
- Filing Date
- 2025-05-10
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional output shaft machining fixtures are difficult to effectively clamp non-standard designed output shafts, and once fixed, they cannot rotate, making operation cumbersome.
A fixture comprising a base, a bracket, a turntable, and a motor drive was designed. It achieves automatic centering, clamping, and rotation of the output shaft through a bevel gear and screw mechanism. Combined with the structure of an arc-shaped clamping plate and a support plate, it enables the fixing and rotation of output shafts of various sizes.
It enables efficient fixing and rotation of output shafts of different sizes, simplifies the operation process, and improves processing efficiency.
Smart Images

Figure CN224182893U_ABST
Abstract
Description
An output shaft machining fixture Technical Field
[0001] This utility model belongs to the field of mechanical tooling technology, specifically relating to an output shaft machining fixture. Background Technology
[0002] Output shafts are common components, designed non-standardly based on power and driven components. When machining and drilling various output shafts, fixtures are required for fixation. Due to the non-standard nature of output shafts, traditional two-sided workpiece clamping methods are difficult to use effectively. Furthermore, traditional workpiece clamping requires aligning the output shaft with the corresponding hole and securing it manually, which is inconvenient. After fixing the output shaft, it cannot be rotated, requiring the shaft to be released and re-fixed after drilling on one side, making the overall operation cumbersome. To address these issues, a more efficient output shaft machining fixture is proposed. Summary of the Invention
[0003] To address the problems existing in the background technology, this utility model provides an output shaft machining fixture; it can clamp and fix output shafts of different sizes, and can perform fixing and rotation in one go.
[0004] This utility model provides an output shaft machining fixture, including a base, a bracket fixedly mounted on the base, a turntable rotatably connected to the bracket, a drive rotation assembly between the bracket and the turntable, and a fixed clamping mechanism on the turntable. The fixed clamping mechanism includes a cavity located inside the turntable, a bevel gear rotatably connected to the cavity, a transmission rod rotatably connected to the turntable, one end of the transmission rod extending out of the turntable, and a bevel gear 2 fixedly mounted at the other end of the transmission rod extending into the cavity. The bevel gear 1 and bevel gear 2 mesh with each other. A screw is rotatably connected to the turntable, and the bevel gear 1 is fixedly connected to the screw. A moving block is threadedly connected to the screw. Connecting rod 1 and connecting rod 2 are evenly hinged to the moving block, and the connecting rod 1 and connecting rod 2 are parallel to each other. A clamping rod is hinged to the other end of the connecting rod 1 and connecting rod 2. A sliding groove is provided on the turntable corresponding to the clamping rod, and the clamping rod is slidably connected to the sliding groove. An arc-shaped clamping plate is fixedly mounted on the clamping rod.
[0005] Furthermore, the drive rotation assembly includes a motor fixedly mounted on a bracket, and the output end of the motor is fixedly connected to the turntable.
[0006] Furthermore, a rotating block is fixedly installed at one end of the transmission rod extending from the turntable, and the rotating block is provided with a polygonal groove.
[0007] Furthermore, a limit plate is fixedly installed on the screw.
[0008] Furthermore, the arc-shaped clamping plate is provided with anti-slip texture.
[0009] Furthermore, support plates are symmetrically fixedly installed on the arc-shaped clamping plate on the side away from the transmission rod.
[0010] The beneficial effects of this utility model are:
[0011] This utility model, through structural improvements and optimizations, can meet the requirements for fixing output shafts of different diameters. It also utilizes a motor to drive the operation, enabling rotation and allowing for repeated processing after a single clamping and fixing. With the support plate, the output shaft can be directly placed between the lower arc-shaped clamping plate and the support plate. The structural movement between the arc-shaped clamping plates automatically achieves centering. Overall operating efficiency is significantly improved, and operation is also simpler. Attached Figure Description
[0012] Figure 1 is a front perspective view of an output shaft machining fixture according to the present invention.
[0013] Figure 2 is a rear perspective view of an output shaft machining fixture according to the present invention.
[0014] Figure 3 is a schematic diagram of the output shaft machining fixture of this utility model after the base and bracket have been removed.
[0015] Figure 4 is a cross-sectional view of the turntable of an output shaft machining fixture according to this utility model.
[0016] Figure 5 is a schematic diagram of the structure on the screw of an output shaft machining fixture according to this utility model.
[0017] As shown in the figure:
[0018] 1. Base, 2. Bracket, 3. Turntable, 4. Cavity, 5. Bevel gear one, 6. Transmission rod, 7. Bevel gear two, 8. Screw, 9. Moving block, 10. Connecting rod one, 11. Connecting rod two, 12. Clamping rod, 13. Slide groove, 14. Arc-shaped clamping plate, 15. Motor, 16. Rotating block, 17. Polygonal groove, 18. Limiting plate, 19. Anti-slip texture, 20. Support plate. Detailed Implementation
[0019] 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.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] Please refer to the accompanying diagrams in all instruction manuals:
[0022] A machining fixture for an output shaft includes a base 1, a bracket 2 fixedly mounted on the base 1, a turntable 3 rotatably connected to the bracket 2, a drive rotation assembly between the bracket 2 and the turntable 3, and a fixed clamping mechanism on the turntable 3.
[0023] The fixed clamping mechanism includes a cavity 4 located inside the turntable 3. A bevel gear 5 is rotatably connected inside the cavity 4. A transmission rod 6 is rotatably connected inside the turntable 3. One end of the transmission rod 6 extends out of the turntable 3, and the other end of the transmission rod 6 extending into the cavity 4 is fixedly installed with a bevel gear 7. The bevel gear 5 and the bevel gear 7 mesh with each other. A screw 8 is rotatably connected to the turntable 3. The bevel gear 5 is fixedly connected to the screw 8. A moving block 9 is threaded onto the screw 8. A connecting rod 10 and a connecting rod 21 are evenly hinged to the moving block 9. The connecting rod 10 and the connecting rod 21 are parallel to each other. A clamping rod 12 is hinged to the other end of the connecting rod 10 and the connecting rod 21. A groove 13 is provided on the turntable 3 corresponding to the clamping rod 12. The clamping rod 12 is slidably connected to the groove 13. An arc-shaped clamping plate 14 is fixedly installed on the clamping rod 12.
[0024] As can be seen from the above description, the rotation of the control transmission rod 6 can drive the first bevel gear 5 and the second bevel gear 7 to rotate, causing the screw 8 to rotate. Under the limitation of the slide groove 13, the clamping rod 12 can only move radially relative to the turntable. The screw 8 is driven to rotate by the first bevel gear 5, and the moving block 9 moves horizontally. Under the structural relationship of the first connecting rod 10 and the second connecting rod 11, the clamping rods 12 can only move closer or further away from each other, which can realize the fixation of output shafts of various sizes.
[0025] As a technical optimization of this utility model, the drive rotation component includes a motor 15 fixedly installed on the bracket 2, and the output end of the motor 15 is fixedly connected to the turntable 3.
[0026] As can be seen from the above description, by controlling the motor 15, the turntable 3 can be directly driven to rotate, so that the clamped output shaft can be freely rotated, making the processing more convenient.
[0027] As a technical optimization of this utility model, a rotating block 16 is fixedly installed on one end of the transmission rod 6 extending out of the turntable 3, and a polygonal groove 17 is provided on the rotating block 16.
[0028] As can be seen from the above description, by controlling the rotation of the rotating block 16, the transmission rod 6 can be driven to rotate. Through the polygonal groove 17, a larger torque can be output through an external tool, and the force can be transmitted to the arc-shaped clamping plate 14, resulting in a better fixing effect.
[0029] As a technical optimization of this utility model, a limiting plate 18 is fixedly installed on the screw 8;
[0030] As can be seen from the above description, the limiting plate 18 can prevent the moving block 9 from moving away from the screw, and can also provide a certain limit for the fixed clamping of the output shaft.
[0031] As a technical optimization of this utility model, the arc-shaped clamping plate 14 is provided with anti-slip texture 19;
[0032] As can be seen from the above description, the anti-slip texture 19 can provide stronger clamping friction and ensure clamping stability.
[0033] As a technical optimization of this utility model, a support plate 20 is symmetrically fixedly installed on the arc-shaped clamping plate 14 on the side away from the transmission rod 6;
[0034] As can be seen from the above description, the support plates 20 on both sides are V-shaped, which can lift the output shaft when it is placed on top, making it convenient for workers to fix it.
[0035] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.
[0036] The working process of this utility model is as follows:
[0037] Manually rotate turntable 3 so that tray 20 and the corresponding arc-shaped clamping plate 14 are at the bottom; place the output shaft between tray 20 and arc-shaped clamping plate 14 and press it against limiting plate 18; then rotate rotating block 16 to rotate transmission rod 6, which drives bevel gear 5 and bevel gear 7 to rotate, causing screw 8 to rotate. Under the limitation of slide groove 13, clamping rod 12 can only move radially relative to turntable. Screw 8 is driven to rotate by bevel gear 5, and moving block 9 moves horizontally. Under the structural relationship of connecting rod 10 and connecting rod 2 11, clamping rod 12 can only move closer or further away from each other, which can achieve the fixation of output shafts of various sizes; then, by inserting an external wrench into polygonal groove 17, more clamping force is provided, making the fixation effect of output shaft better; by controlling motor 15 to drive turntable 3 to rotate, the output shaft can be rotated, and other positions of the output shaft can be processed.
[0038] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.
Claims
1. A machining fixture for an output shaft, comprising a base, characterized in that: A bracket is fixedly installed on the base, and a turntable is rotatably connected to the bracket. A drive rotation assembly is provided between the bracket and the turntable. A fixed clamping mechanism is provided on the turntable. The fixed clamping mechanism includes a cavity located inside the turntable. A bevel gear one is rotatably connected to the cavity. A transmission rod is rotatably connected to the turntable. One end of the transmission rod extends out of the turntable, and the other end of the transmission rod extending into the cavity is fixedly installed with a bevel gear two. The bevel gear one and bevel gear two mesh with each other. A screw is rotatably connected to the turntable. The bevel gear one is fixedly connected to the screw. A moving block is threaded onto the screw. Connecting rod one and connecting rod two are evenly hinged to the moving block. The connecting rod one and connecting rod two are parallel to each other. A clamping rod is hinged to the other end of the connecting rod one and connecting rod two. A sliding groove is provided on the turntable corresponding to the clamping rod. The clamping rod is slidably connected to the sliding groove. An arc-shaped clamping plate is fixedly installed on the clamping rod.
2. The output shaft machining fixture according to claim 1, characterized in that: The drive rotation assembly includes a motor fixedly mounted on a bracket, and the output end of the motor is fixedly connected to the turntable.
3. The output shaft machining fixture according to claim 1, characterized in that: A rotating block is fixedly installed at one end of the transmission rod that extends out of the turntable, and the rotating block is provided with a polygonal groove.
4. The output shaft machining fixture according to claim 1, characterized in that: A limit plate is fixedly installed on the screw.
5. The output shaft machining fixture according to claim 1, characterized in that: The arc-shaped clamping plate is provided with anti-slip texture.
6. The output shaft machining fixture according to claim 1, characterized in that: Support plates are symmetrically fixedly installed on the arc-shaped clamping plate on the side away from the transmission rod.