High-precision angle adjusting mechanism of speed reducer

Abstract

The utility model discloses a high accuracy angle adjusting mechanism of speed reducer applies in the field of automatic assembly equipment, including mounting bracket, the lower extreme of mounting bracket is provided with bottom plate, be provided with servo motor drive assembly on the bottom plate, be provided with telescopic sleeve subassembly on servo motor drive assembly, the one side of mounting bracket is provided with sleeve telescopic control subassembly, sleeve telescopic control subassembly and telescopic sleeve subassembly cooperation setting, the top of mounting bracket is provided with workpiece positioning fixture subassembly, can utilize servo motor drive assembly's accurate control, the elastic lamination of telescopic sleeve subassembly and sleeve telescopic control subassembly's logic linkage through above setting, replaces manual correction, has realized the high -efficient, high accuracy adjustment of speed reducer output shaft angle.

Description

Technical Field

[0001] This utility model belongs to the field of automated assembly equipment technology, and specifically relates to a high-precision angle adjustment mechanism for a speed reducer. Background Technology

[0002] Currently, all electronic parking brake (electronic handbrake) actuators in automobiles on the market contain a planetary reduction mechanism, which works with a motor to achieve high torque output to realize the electronic parking function. The relative angle of the output shaft of the reducer in this actuator cannot be accurately positioned in the previous process. Before entering the next automated process, the output shaft angle needs to be precisely adjusted to cooperate with the production of the next process.

[0003] The current announcement of Chinese utility model patent CN209705200U discloses a manually adjustable planetary reducer, which is equipped with a power source input mechanism and a reduction mechanism. The power source input mechanism includes a power source and an input shaft. With the above-mentioned reasonable structure, the rotation angle of the planetary reducer can be manually adjusted, thereby adjusting the load displacement to achieve the required position. The adjustment is simple and convenient, with good reliability, and is also relatively labor-saving.

[0004] The relative angle of the output shaft of the existing planetary reducer can only be manually corrected before entering the next process, which is inefficient and cannot guarantee product consistency. Utility Model Content

[0005] The purpose of this invention is to provide a high-precision angle adjustment mechanism for a speed reducer, which solves the problem that in the existing manually adjustable planetary speed reducer, the relative angle of the output shaft can only be manually corrected before entering the next process, resulting in low efficiency and inability to guarantee product consistency.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-precision angle adjustment mechanism for a speed reducer, including a mounting frame, a base plate at the lower end of the mounting frame, a servo motor drive assembly on the base plate, a telescopic sleeve assembly on the servo motor drive assembly, a sleeve telescopic control assembly on one side of the mounting frame, the sleeve telescopic control assembly cooperating with the telescopic sleeve assembly, and a workpiece positioning fixture assembly at the top of the mounting frame.

[0007] The servo motor drive assembly includes a servo motor, a servo reducer, and a coupling. The servo motor is fixedly mounted on the base plate, the servo reducer is mounted on the servo motor, and the coupling is mounted on the servo reducer. The coupling is located above the base plate.

[0008] By adopting the above technical solution, and by setting up a mounting frame, a base plate, a servo motor drive assembly, a telescopic sleeve assembly, a sleeve telescopic control assembly, and a workpiece positioning fixture assembly, in use, the reducer (hereinafter referred to as the workpiece) is first fixed on the workpiece positioning fixture assembly. Then, the servo motor drive assembly provides the required torque, speed, and position control for angle adjustment. The telescopic sleeve assembly positions the workpiece, and then the telescopic range of the telescopic sleeve assembly is controlled by the sleeve telescopic control assembly. By utilizing the precise control of the servo motor drive assembly, the elastic fit of the telescopic sleeve assembly, and the logical linkage of the sleeve telescopic control assembly, manual correction is replaced, achieving efficient and high-precision adjustment of the reducer output shaft angle. The servo motor drive assembly includes a servo motor, a servo reducer, and a coupling. The servo motor is fixed on the base plate, providing the required torque, speed, and precise position control for angle adjustment. The servo reducer can adjust the torque and speed range output by the servo motor. The coupling plays a power transmission role, accurately transmitting the torque and speed adjusted by the servo reducer to the telescopic sleeve assembly, thereby driving subsequent components to perform angle adjustment-related actions.

[0009] Furthermore: the retractable sleeve assembly includes a bearing housing, a rotating sleeve, a sleeve shaft, a sleeve guide seat, a lifting spring, and a sleeve. The bearing housing is mounted on the coupling, the rotating sleeve is mounted on the bearing housing, the sleeve shaft is located inside the rotating sleeve, the sleeve guide seat is mounted on the mounting bracket, the lifting spring is coaxially mounted on the sleeve shaft, the sleeve is mounted on the sleeve shaft, and the sleeve shaft moves axially within the sleeve guide seat.

[0010] The above technical solution involves setting up a bearing housing, a rotating sleeve, a sleeve shaft, a sleeve guide seat, a lifting spring, and a sleeve. The bearing housing is mounted on the coupling, providing a stable mounting base for the entire telescopic sleeve assembly. The rotating sleeve is installed inside the bearing housing and does not move axially; it only receives and transmits torque from the servo motor drive assembly while allowing the sleeve shaft to move axially, ensuring that torque transmission and axial telescopic movement do not interfere with each other. The sleeve shaft is located inside the rotating sleeve and coaxially mounted within the sleeve guide seat. The sleeve guide seat provides precise guidance for the axial movement of the sleeve shaft, ensuring its motion stability and coaxiality. The lifting spring is coaxially sleeved on the sleeve shaft, providing support for the sleeve. The shaft and sleeve provide a continuous upward lifting force, which is the core power source for realizing the axial extension and retraction of the sleeve. When the sleeve extension and retraction control component releases the restriction, the lifting spring extends, pushing the sleeve shaft to move upward along the sleeve guide seat, causing the top sleeve to rise synchronously until the sleeve fits against the output shaft of the reducer. The remaining stroke of the spring maintains the axial fitting pressure. After receiving the torque from the servo motor drive component, the rotating sleeve transmits the torque to the sleeve shaft, thereby driving the sleeve to rotate. At this time, the sleeve maintains the axial lifting state while rotating. When it rotates to coincide with the angle of the output shaft of the reducer, it fits into the output shaft under the action of the lifting spring force, realizing the coordinated cooperation of rotational power and axial pressure.

[0011] Furthermore: the sleeve telescopic control assembly includes a telescopic control cylinder, a telescopic control disc, a U-shaped control arm, and a proximity switch. The telescopic control cylinder is mounted on a mounting bracket, the telescopic control disc is mounted on the sleeve shaft, the U-shaped control arm is fixedly mounted on the output shaft of the telescopic control cylinder, one end of the U-shaped control arm is located above the telescopic control disc, and the proximity switch is mounted on the telescopic control disc.

[0012] By employing the above technical solution, and by setting up a telescopic control cylinder, a telescopic control disc, a U-shaped control arm, and a proximity switch, in the initial state or when the sleeve needs to be disengaged from the reducer output shaft, the telescopic control cylinder drives the U-shaped control arm to press down the telescopic control disc, thereby causing the sleeve shaft and sleeve compression lifting spring to descend, thus disengaging the sleeve from the reducer output shaft. When the sleeve needs to be fitted onto the reducer output shaft, the telescopic control cylinder drives the U-shaped control arm to rise, releasing the downward pressure restriction on the telescopic control disc. At this time, the elastic force of the lifting spring will lift the sleeve shaft and sleeve, causing the sleeve to rise and fit onto the reducer output shaft. The proximity switch is set on the telescopic control disc to detect whether the sleeve has been successfully fitted onto the reducer output shaft.

[0013] Furthermore: the workpiece positioning fixture includes a workpiece positioning profiler, a positioning pin, a clamping cylinder, and a clamping arm. The workpiece positioning profiler is mounted on a mounting frame, the positioning pin is located at one end of the workpiece positioning profiler, the clamping cylinder is mounted on the mounting frame, and the clamping arm is located on the output shaft of the clamping cylinder.

[0014] By adopting the above technical solution, a workpiece positioning profiler, a positioning pin, a clamping cylinder, and a clamping arm are set. The workpiece positioning profiler is set on the mounting frame, and its shape matches the workpiece, providing a foundation for placing the workpiece. The positioning pin achieves precise positioning of the workpiece, ensuring that the workpiece is fixed in position during angle adjustment, and providing a reference for the precise matching of the sleeve and the reducer output shaft. After the workpiece is positioned by the positioning pin, the clamping cylinder is activated, driving the clamping arm to press the workpiece firmly onto the workpiece positioning profiler from above, preventing the workpiece from shifting or shaking due to the rotation of the sleeve or the lifting force during angle adjustment, and ensuring the stability and accuracy of the adjustment process.

[0015] Furthermore, the mounting bracket has a through-hole, through which the U-shaped control arm passes and contacts the telescopic control panel.

[0016] By adopting the above technical solution, the through-hole is provided so that the U-shaped control arm can pass through the mounting frame and contact the telescopic control panel during use, thus facilitating the U-shaped control arm to restrict the telescopic control panel.

[0017] Furthermore, the sleeve shaft is coaxially arranged with the bearing housing.

[0018] By adopting the above technical solution and setting the sleeve shaft and bearing housing coaxially, the stability of the operation can be guaranteed.

[0019] Furthermore: the rotating sleeve does not move axially and is only used to transmit torque, while the rotating sleeve allows the sleeve shaft to move axially.

[0020] By adopting the above technical solution, the rotating sleeve can transmit torque while allowing the sleeve shaft to move axially by restricting the rotating sleeve.

[0021] Furthermore, a limit frame is fixedly installed on the mounting bracket by bolts, and the limit frame is located above the U-shaped control arm.

[0022] By adopting the above technical solution and setting a limit frame, the movement of the U-shaped control arm can be restricted during use.

[0023] In summary, this utility model has the following beneficial effects:

[0024] By setting up a servo motor drive assembly, the servo motor is fixed on the base plate, providing the required torque, speed, and precise position control for angle adjustment. The servo reducer can adjust the torque and speed range output by the servo motor, and the coupling plays a power transmission role, accurately transmitting the torque and speed adjusted by the servo reducer to the telescopic sleeve assembly, thereby driving subsequent components to perform angle adjustment-related actions.

[0025] By setting up a telescopic sleeve assembly, when the sleeve telescopic control assembly releases its limit, the lifting spring extends, pushing the sleeve shaft to move upward along the sleeve guide seat, causing the top sleeve to rise synchronously until the sleeve fits against the reducer output shaft. The remaining stroke of the spring maintains the axial fitting pressure. After receiving the torque from the servo motor drive assembly, the rotating sleeve transmits the torque to the sleeve shaft, thereby driving the sleeve to rotate. At this time, the sleeve maintains an axial lifting state while rotating. When it rotates to coincide with the angle of the reducer output shaft, it fits into the output shaft under the action of the lifting spring force, realizing the coordinated cooperation of rotational power and axial pressure.

[0026] Based on the above improvements, the overall technical effect achieved by this device is that it can replace manual calibration by utilizing the precise control of the servo motor drive component, the elastic fit of the telescopic sleeve component, and the logical linkage of the sleeve telescopic control component, thus realizing efficient and high-precision adjustment of the reducer output shaft angle. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a structural schematic diagram of the servo motor drive assembly and the telescopic sleeve assembly of this utility model;

[0029] Figure 3 This is a structural schematic diagram of the sleeve telescopic control assembly of this utility model;

[0030] Figure 4 This is a schematic diagram of the workpiece positioning fixture assembly of this utility model;

[0031] Figure 5 This is a structural schematic diagram of the mounting bracket, through-hole, and limiting bracket of this utility model.

[0032] In the diagram, 1. Mounting bracket; 2. Base plate; 3. Servo motor drive assembly; 4. Telescopic sleeve assembly; 5. Sleeve telescopic control assembly; 6. Workpiece positioning fixture assembly; 7. Through-hole; 8. Limiting frame; 301. Servo motor; 302. Servo reducer; 303. Coupling; 401. Bearing seat; 402. Rotating sleeve; 403. Sleeve shaft; 404. Sleeve guide seat; 405. Lifting spring; 406. Sleeve; 501. Telescopic control cylinder; 502. Telescopic control disc; 503. U-shaped control arm; 504. Proximity switch; 601. Workpiece positioning contour seat; 602. Positioning pin; 603. Clamping cylinder; 604. Clamping arm. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] Example:

[0035] Please see Figures 1-5 The present invention provides a technical solution: a high-precision angle adjustment mechanism for a speed reducer, including a mounting frame 1, a base plate 2 at the lower end of the mounting frame 1, a servo motor drive assembly 3 on the base plate 2, a telescopic sleeve assembly 4 on the servo motor drive assembly 3, a sleeve telescopic control assembly 5 on one side of the mounting frame 1, the sleeve telescopic control assembly 5 and the telescopic sleeve assembly 4 being configured to cooperate with each other, and a workpiece positioning fixture assembly 6 on the top of the mounting frame 1;

[0036] The servo motor drive assembly 3 includes a servo motor 301, a servo reducer 302, and a coupling 303. The servo motor 301 is fixedly mounted on the base plate 2. The servo reducer 302 is mounted on the servo motor 301. The coupling 303 is mounted on the servo reducer 302. The coupling 303 is located above the base plate 2.

[0037] By setting up a mounting bracket 1, a base plate 2, a servo motor drive assembly 3, a telescopic sleeve assembly 4, a sleeve telescopic control assembly 5, and a workpiece positioning fixture assembly 6, in use, the reducer (hereinafter referred to as the workpiece) is first fixed on the workpiece positioning fixture assembly 6. Then, the servo motor drive assembly 3 provides the required torque, speed, and position control for angle adjustment. The telescopic sleeve assembly 4 positions the workpiece. Then, the telescopic range of the telescopic sleeve assembly 4 is controlled by the sleeve telescopic control assembly 5. By utilizing the precise control of the servo motor drive assembly 3, the elastic fit of the telescopic sleeve assembly 4, and the logical linkage of the sleeve telescopic control assembly 5, manual correction is replaced, and efficient and high-precision adjustment of the reducer output shaft angle is achieved.

[0038] The servo motor 301 is fixed on the base plate 2, providing the required torque, speed and precise position control for angle adjustment. The servo reducer 302 can adjust the torque and speed range output by the servo motor 301. The coupling 303 plays the role of power transmission, accurately transmitting the torque and speed adjusted by the servo reducer 302 to the telescopic sleeve assembly 4, thereby driving the subsequent components to perform angle adjustment-related actions.

[0039] refer to Figure 2 The telescopic sleeve assembly 4 includes a bearing housing 401, a rotating sleeve 402, a sleeve shaft 403, a sleeve guide seat 404, a lifting spring 405, and a sleeve 406. The bearing housing 401 is mounted on the coupling 303, the rotating sleeve 402 is mounted on the bearing housing 401, the sleeve shaft 403 is located inside the rotating sleeve 402, the sleeve guide seat 404 is mounted on the mounting bracket 1, the lifting spring 405 is coaxially mounted on the sleeve shaft 403, and the sleeve 406 is mounted on the sleeve shaft 403. The sleeve shaft 403 moves axially within the sleeve guide seat 404.

[0040] By configuring a bearing housing 401, a rotating sleeve 402, a sleeve shaft 403, a sleeve guide seat 404, a lifting spring 405, and a sleeve 406, the bearing housing 401, mounted on the coupling 303, provides a stable mounting base for the entire telescopic sleeve assembly 4. The rotating sleeve 402, installed within the bearing housing 401, does not move axially; it only receives and transmits torque from the servo motor drive assembly 3, while allowing the sleeve shaft 403 to move axially, ensuring that torque transmission and axial telescopic movement do not interfere with each other. The sleeve shaft 403 is located inside the rotating sleeve 402 and coaxially mounted within the sleeve guide seat 404. The sleeve guide seat 404 provides precise guidance for the axial movement of the sleeve shaft 403, ensuring its motion stability and coaxiality. The lifting spring 405 is coaxially sleeved on the sleeve shaft 403. Providing a continuous upward lifting force to the sleeve shaft 403 and sleeve 406 is the core power source for the extension and retraction of the sleeve shaft 403. When the sleeve extension and retraction control component 5 releases its restraint, the lifting spring 405 extends, pushing the sleeve shaft 403 to move upward along the sleeve guide seat 404, causing the top sleeve 406 to rise synchronously until the sleeve 406 fits against the reducer output shaft. The remaining stroke of the spring maintains the axial fitting pressure. After receiving the torque from the servo motor drive component 3, the rotating sleeve 402 transmits the torque to the sleeve shaft 403, thereby driving the sleeve 406 to rotate. At this time, the sleeve 406 maintains the axial lifting state while rotating. When it rotates to coincide with the angle of the reducer output shaft, it fits into the output shaft under the action of the lifting spring 405, realizing the coordinated cooperation of rotational power and axial pressure.

[0041] refer to Figure 3 The telescopic control assembly 5 includes a telescopic control cylinder 501, a telescopic control disc 502, a U-shaped control arm 503, and a proximity switch 504. The telescopic control cylinder 501 is mounted on the mounting bracket 1, the telescopic control disc 502 is mounted on the sleeve shaft 403, the U-shaped control arm 503 is fixedly mounted on the output shaft of the telescopic control cylinder 501, one end of the U-shaped control arm 503 is located above the telescopic control disc 502, and the proximity switch 504 is mounted on the telescopic control disc 502.

[0042] By configuring a telescopic control cylinder 501, a telescopic control disc 502, a U-shaped control arm 503, and a proximity switch 504, in the initial state or when it is necessary for the sleeve 406 to disengage from the reducer output shaft, the telescopic control cylinder 501 drives the U-shaped control arm to press down the telescopic control disc 502, thereby causing the sleeve shaft 403 and sleeve 406 to compress the lifting spring 405 and descend, thus disengaging the sleeve 406 from the reducer output shaft. When it is necessary for the sleeve 406 to fit against the reducer output shaft, the telescopic control cylinder 501 drives the U-shaped control arm to rise, releasing the downward pressure restriction on the telescopic control disc 502. At this time, the elastic force of the lifting spring 405 will lift the sleeve shaft 403 and sleeve 406, causing the sleeve 406 to rise and fit against the reducer output shaft. The proximity switch 504 is set on the telescopic control disc 502 to detect whether the sleeve 406 has been successfully fitted onto the reducer output shaft.

[0043] refer to Figure 4 The workpiece positioning fixture includes a workpiece positioning profiler 601, a positioning pin 602, a clamping cylinder 603, and a clamping arm 604. The workpiece positioning profiler 601 is mounted on the mounting frame 1, the positioning pin 602 is located at one end of the workpiece positioning profiler 601, the clamping cylinder 603 is mounted on the mounting frame 1, and the clamping arm 604 is located on the output shaft of the clamping cylinder 603.

[0044] By setting up a workpiece positioning profiler 601, a positioning pin 602, a clamping cylinder 603, and a clamping arm 604, the workpiece positioning profiler 601 is set on the mounting frame 1. Its shape matches the workpiece, providing a foundation for placing the workpiece. The positioning pin 602 achieves precise positioning of the workpiece, ensuring that the workpiece is fixed in position during angle adjustment, and providing a reference for the precise matching between the sleeve 406 and the reducer output shaft. After the workpiece is positioned by the positioning pin 602, the clamping cylinder 603 is activated, driving the clamping arm 604 to press the workpiece tightly onto the workpiece positioning profiler 601 from above, preventing the workpiece from shifting or shaking due to the rotation or lifting force of the sleeve 406 during angle adjustment, and ensuring the stability and accuracy of the adjustment process.

[0045] refer to Figure 5 The mounting bracket 1 has a through-hole 7. The U-shaped control arm 503 passes through the through-hole 7 and contacts the telescopic control plate 502. By setting the through-hole 7, it is easy for the U-shaped control arm 503 to pass through the mounting bracket 1 and contact the telescopic control plate 502 during use, and it is easy for the U-shaped control arm 503 to restrict the telescopic control plate 502.

[0046] refer to Figure 2 The sleeve shaft 403 and the bearing housing 401 are coaxially arranged. By coaxially arranging the sleeve shaft 403 and the bearing housing 401, the stability of the operation can be guaranteed.

[0047] refer to Figure 2The rotating sleeve 402 does not move axially and is only used to transmit torque. The rotating sleeve 402 allows the sleeve shaft 403 to move axially. By restricting the rotating sleeve 402, the rotating sleeve 402 can transmit torque while allowing the sleeve shaft 403 to move axially.

[0048] refer to Figure 5 A limit frame 8 is fixed on the mounting bracket 1 by bolts. The limit frame 8 is located above the U-shaped control arm 503. By setting the limit frame 8, the limit can restrict the movement of the U-shaped control arm 503 during use.

[0049] Brief description of usage:

[0050] In use, the servo motor 301 is first fixed on the base plate 2 to provide the required torque, speed and precise position control for angle adjustment. The servo reducer 302 can adjust the torque and speed range output by the servo motor 301. The coupling 303 plays the role of power transmission, accurately transmitting the torque and speed adjusted by the servo reducer 302 to the telescopic sleeve assembly 4, thereby driving the subsequent components to perform angle adjustment-related actions.

[0051] Then, the bearing housing 401 is mounted on the coupling 303, providing a stable mounting base for the entire telescopic sleeve assembly 4. The rotating sleeve 402 is mounted inside the bearing housing 401, and its axial movement is not performed. It is only responsible for receiving and transmitting torque from the servo motor drive assembly 3, while allowing the sleeve shaft 403 to move axially, ensuring that torque transmission and axial telescopic movement do not interfere with each other. The sleeve shaft 403 is located inside the rotating sleeve 402 and is coaxially mounted in the sleeve guide seat 404. The sleeve guide seat 404 provides precise guidance for the axial movement of the sleeve shaft 403, ensuring its motion stability and coaxiality. The lifting spring 405 is coaxially sleeved on the sleeve shaft 403, providing continuous upward lifting for the sleeve shaft 403 and the sleeve 406. Force is the core power source for the extension and retraction of the sleeve shaft 403. When the sleeve extension and retraction control component 5 releases the restriction, the lifting spring 405 extends, pushing the sleeve shaft 403 to move upward along the sleeve guide seat 404, driving the top sleeve 406 to rise synchronously until the sleeve 406 fits against the output shaft of the reducer, and relies on the remaining stroke of the spring to maintain the axial fitting pressure. After receiving the torque from the servo motor drive component 3, the rotating sleeve 402 transmits the torque to the sleeve shaft 403, thereby driving the sleeve 406 to rotate. At this time, the sleeve 406 maintains the axial lifting state while rotating. When it rotates to coincide with the angle of the output shaft of the reducer, it fits into the output shaft under the action of the lifting spring 405, realizing the coordinated cooperation of rotational power and axial pressure.

[0052] Then, in the initial state or when it is necessary for the sleeve 406 to disengage from the reducer output shaft, the telescopic control cylinder 501 drives the U-shaped control arm to press down the telescopic control disk 502, which in turn drives the sleeve shaft 403 and the sleeve 406 to compress the lifting spring 405 and move downward, thereby disengaging the sleeve 406 from the reducer output shaft. When it is necessary for the sleeve 406 to fit against the reducer output shaft, the telescopic control cylinder 501 drives the U-shaped control arm to rise, releasing the downward pressure restriction on the telescopic control disk 502. At this time, the elastic force of the lifting spring 405 will lift the sleeve shaft 403 and the sleeve 406, causing the sleeve 406 to rise and fit against the reducer output shaft. The proximity switch 504 is set on the telescopic control disk 502 to detect whether the sleeve 406 has been successfully fitted onto the reducer output shaft.

[0053] Finally, the workpiece positioning profiler 601 is set on the mounting bracket 1. Its shape matches the workpiece, providing a foundation for placing the workpiece. The positioning pin 602 achieves precise positioning of the workpiece, ensuring that the workpiece is fixed in position during angle adjustment. This provides a reference for the precise matching of the sleeve 406 and the reducer output shaft. After the workpiece is positioned by the positioning pin 602, the clamping cylinder 603 is activated, driving the clamping arm 604 to press the workpiece tightly onto the workpiece positioning profiler 601 from above. This prevents the workpiece from shifting or shaking due to the rotation or lifting force of the sleeve 406 during angle adjustment, ensuring the stability and accuracy of the adjustment process.

[0054] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A high-precision angle adjustment mechanism for a speed reducer, comprising a mounting bracket (1), characterized in that: The mounting frame (1) has a base plate (2) at its lower end, a servo motor drive assembly (3) on the base plate (2), a telescopic sleeve assembly (4) on the servo motor drive assembly (3), a sleeve telescopic control assembly (5) on one side of the mounting frame (1), the sleeve telescopic control assembly (5) and the telescopic sleeve assembly (4) are configured to cooperate with each other, and a workpiece positioning fixture assembly (6) is provided on the top of the mounting frame (1). The servo motor drive assembly (3) includes a servo motor (301), a servo reducer (302), and a coupling (303). The servo motor (301) is fixedly mounted on the base plate (2). The servo reducer (302) is mounted on the servo motor (301). The coupling (303) is mounted on the servo reducer (302). The coupling (303) is located above the base plate (2).

2. The high-precision angle adjustment mechanism for a speed reducer according to claim 1, characterized in that: The telescopic sleeve assembly (4) includes a bearing housing (401), a rotating sleeve (402), a sleeve shaft (403), a sleeve guide seat (404), a lifting spring (405), and a sleeve (406). The bearing housing (401) is mounted on the coupling (303), the rotating sleeve (402) is mounted on the bearing housing (401), the sleeve shaft (403) is located inside the rotating sleeve (402), the sleeve guide seat (404) is mounted on the mounting bracket (1), the lifting spring (405) is coaxially mounted on the sleeve shaft (403), and the sleeve (406) is mounted on the sleeve shaft (403). The sleeve shaft (403) moves axially within the sleeve guide seat (404).

3. The high-precision angle adjustment mechanism for a speed reducer according to claim 2, characterized in that: The telescopic control assembly (5) includes a telescopic control cylinder (501), a telescopic control disc (502), a U-shaped control arm (503), and a proximity switch (504). The telescopic control cylinder (501) is mounted on the mounting bracket (1), the telescopic control disc (502) is mounted on the sleeve shaft (403), the U-shaped control arm (503) is fixedly mounted on the output shaft of the telescopic control cylinder (501), one end of the U-shaped control arm (503) is located above the telescopic control disc (502), and the proximity switch (504) is mounted on the telescopic control disc (502).

4. The high-precision angle adjustment mechanism for a speed reducer according to claim 1, characterized in that: The workpiece positioning fixture includes a workpiece positioning profiler (601), a positioning pin (602), a clamping cylinder (603), and a clamping arm (604). The workpiece positioning profiler (601) is mounted on the mounting frame (1), the positioning pin (602) is located at one end of the workpiece positioning profiler (601), the clamping cylinder (603) is mounted on the mounting frame (1), and the clamping arm (604) is located on the output shaft of the clamping cylinder (603).

5. A high-precision angle adjustment mechanism for a speed reducer according to claim 3, characterized in that: The mounting bracket (1) has a through-hole (7), and the U-shaped control arm (503) passes through the through-hole (7) and contacts the telescopic control panel (502).

6. The high-precision angle adjustment mechanism for a speed reducer according to claim 2, characterized in that: The sleeve shaft (403) is coaxially arranged with the bearing housing (401).

7. A high-precision angle adjustment mechanism for a speed reducer according to claim 2, characterized in that: The rotating sleeve (402) does not move axially and is only used to transmit torque. The rotating sleeve (402) allows the sleeve shaft (403) to move axially.

8. The high-precision angle adjustment mechanism for a speed reducer according to claim 3, characterized in that: A limit frame (8) is fixedly installed on the mounting bracket (1) by bolts, and the limit frame (8) is located above the U-shaped control arm (503).

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