A rotating clamping tool for automobile parts

The rotary clamping fixture, composed of components such as a support frame and a rotating seat, solves the positioning error and stability problems of traditional clamping fixtures during multi-angle machining, achieving efficient and convenient part clamping and angle adjustment, and improving machining efficiency and accuracy.

CN224488753UActive Publication Date: 2026-07-14

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Filing Date
2025-08-13
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional clamping fixtures require frequent disassembly and assembly during multi-angle or rotational machining, leading to positioning errors, affecting machining quality and efficiency, and exhibiting poor stability, making it difficult to meet the needs of efficient automated production of parts of different specifications and shapes.

Method used

The rotary clamping fixture, composed of components such as a support frame, rotary seat, servo motor, stepper motor, and drive motor, uses the servo motor to drive the lead screw and threaded sleeve to move and the linkage arm to rotate, thereby achieving center clamping and angle adjustment of the part. Combined with the worm gear driving the part to rotate, it can achieve multiple ways to adjust the grinding position and angle of the part.

Benefits of technology

It enables convenient centering and clamping of long shaft parts, improves the efficiency and convenience of part grinding, reduces manual disassembly and assembly time, and ensures machining accuracy and stability.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224488753U_ABST
    Figure CN224488753U_ABST
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Abstract

The utility model discloses a kind of automobile parts rotary clamping tool, including support frame and rotating seat, rotating seat is provided on the outer wall of support frame, the upper portion of support frame is provided with placing frame, the lateral wall of placing frame is symmetrically installed with adjusting frame, and the inside of a group of adjusting frames is provided with stepper motor, the side of adjusting frame close to placing frame is symmetrically installed with slip ring, and adjusting frame is slidably connected with placing frame by slip ring, the outer wall of adjusting frame is all installed with driving shaft, the driving shaft is movably connected with support frame, and a group of driving shaft extends to the inside of rotating seat and is movably connected with rotating seat, driving motor is installed on the outer wall of rotating seat.The utility model not only realizes the convenient centering clamping and fixing long shaft parts, facilitates the polishing position of multiple mode adjustment parts and adjustment part polishing angle, and improve the efficiency and convenience of part polishing.
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Description

Technical Field

[0001] This utility model relates to the field of clamping fixture technology, specifically a rotary clamping fixture for automotive parts. Background Technology

[0002] With the rapid development of the automotive industry, the precision and efficiency of parts processing have become crucial to ensuring the performance of the entire vehicle. Traditional clamping fixtures are mostly fixed, which often require frequent disassembly and manual indexing when multi-angle or rotational machining is needed. This not only wastes time but also easily leads to positioning errors, affecting the machining quality.

[0003] Existing rotary clamping devices mostly rely on a single manual or simple mechanical structure to achieve angle adjustment, which is difficult to meet the rapid switching requirements of parts of different specifications and shapes on efficient automated production lines. At the same time, these devices have poor stability during adjustment, and slippage or vibration may occur during processing, reducing processing accuracy and production cycle time. Utility Model Content

[0004] The purpose of this utility model is to provide a rotary clamping fixture for automotive parts, so as to solve the problems mentioned in the background art, which are not convenient for centering and clamping long shaft parts, are not conducive to adjusting the grinding position and grinding angle of the parts in multiple ways, and affect the efficiency and convenience of grinding the parts.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary clamping fixture for automotive parts, comprising a support frame and a rotating seat. The rotating seat is provided on the outer wall of the support frame, and a placement frame is provided above the support frame. Adjustment frames are symmetrically installed on the side walls of the placement frame, and a set of adjustment frames houses a stepper motor. Slip rings are symmetrically installed on the side of each adjustment frame near the placement frame, and the adjustment frames are slidably connected to the placement frame via the slip rings. Drive shafts are installed on the outer walls of each adjustment frame, and the drive shafts are movably connected to the support frame. A set of drive shafts extends into the interior of the rotating seat and is movably connected to the rotating seat. A drive motor is installed on the outer wall of the rotating seat, and a worm gear is installed at the output end of the drive motor. A worm wheel is fitted on the surface of the drive shaft on one side of the worm gear, and the worm gear and the worm wheel mesh with each other. Three sets of integrated frames are symmetrically installed at equal intervals inside the placement frame.

[0006] Preferably, each of the integrated frames has a lead screw movably installed inside, and a servo motor is installed at one end of each lead screw, and the servo motor is fixedly connected to the placement frame.

[0007] Preferably, the surface of the lead screw is fitted with a threaded sleeve, and the threaded sleeve is threadedly connected to the lead screw.

[0008] Preferably, each threaded sleeve is provided with a linkage arm on its side wall, and each linkage arm is provided with a hinge shaft at the end near the threaded sleeve, and the linkage arm is movably connected to the threaded sleeve through the hinge shaft.

[0009] Preferably, each of the linkage arms is provided with an adjusting arm at the end away from the threaded sleeve, and each of the adjusting arms is provided with a linkage shaft on the side of the linkage arm closer to the linkage arm, and the adjusting arm is movably connected to the linkage arm through the linkage shaft.

[0010] Preferably, each of the adjusting arms is provided with a pin at the end near the integrated frame, and the adjusting arm is movably connected to the integrated frame through the pin.

[0011] Preferably, each of the adjusting arms is equipped with a power motor on its side wall, and each power motor has a drive wheel installed at its output end.

[0012] Preferably, the output end of the stepper motor is equipped with a gear, and a gear ring is installed on the outer wall of the frame on one side of the gear, and the gear and the gear ring mesh with each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the clamping fixture not only realizes convenient centering and clamping of long shaft parts, and facilitates multiple ways to adjust the grinding position and grinding angle of the parts, but also improves the efficiency and convenience of grinding the parts.

[0014] (1) Insert long-shaft automotive parts into the placement frame, turn on the servo motor, drive the lead screw to rotate, drive the threaded sleeve to move, drive the linkage arm to rotate through the hinge shaft, drive the adjustment arm to rotate around the pin shaft through the linkage shaft, drive the drive wheel to rotate and contact the surface of the long-shaft part to center and fix it. Then, the worker grinds the part. Turn on the power motor, drive the drive wheel to rotate, drive the part to move, and transport the un-grinded part to the worker's position for grinding. When it is necessary to rotate and adjust the grinding position, turn on the stepper motor, drive the gear to rotate, drive the placement frame and the part to rotate in a circle through the gear ring to change and adjust the grinding position of the part, thereby reducing the time for manual disassembly and replacement of parts, improving the grinding efficiency, realizing convenient centering and clamping of long-shaft parts, facilitating multiple ways to adjust the grinding position of parts, and improving the grinding efficiency of parts;

[0015] When it is necessary to adjust the grinding angle of long shaft parts, turn on the drive motor, which drives the worm gear to rotate. The worm gear drives a set of drive shafts to rotate through the worm wheel. With the movable support of another set of drive shafts, the drive shafts drive the adjustment frame, slip ring, placement frame and parts to swing, thereby adjusting the angle of the parts. This makes it convenient to grind them from different angles and improves the convenience of grinding parts. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a frontal cross-sectional view of the present invention.

[0019] Figure 3 This is a top cross-sectional view of the rotating base of this utility model.

[0020] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A

[0021] Figure 5 This is a three-dimensional perspective structural diagram of the placement frame of this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the toothed ring of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Support frame; 2. Rotary seat; 3. Adjusting frame; 4. Slip ring; 5. Placement frame; 6. Integrated frame; 7. Worm gear; 8. Worm wheel; 9. Drive motor; 10. Drive shaft; 11. Threaded sleeve; 12. Lead screw; 13. Servo motor; 14. Adjusting arm; 15. Power motor; 16. Linkage shaft; 17. Linkage arm; 18. Hinge shaft; 19. Drive wheel; 20. Stepper motor; 21. Gear; 22. Gear ring; 23. Pin. Detailed Implementation

[0025] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0026] It will be understood by those skilled in the art that certain well-known structures and their descriptions may be omitted in the accompanying drawings. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0027] Example 1

[0028] Please see Figure 1-6This utility model provides an embodiment of a rotary clamping fixture for automotive parts, comprising a support frame 1 and a rotary seat 2. The rotary seat 2 is provided on the outer wall of the support frame 1, and a placement frame 5 is provided above the support frame 1. Adjustment frames 3 are symmetrically installed on the side walls of the placement frame 5, and a set of adjustment frames 3 are provided with stepper motors 20 inside, which serve as power drives. Slip rings 4 are symmetrically installed on the side of the adjustment frames 3 near the placement frame 5, and the adjustment frames 3 are slidably connected to the placement frame 5 through the slip rings 4. Drive shafts 10 are installed on the outer wall of the adjustment frames 3, and the drive shafts 10 are movably connected to the support frame 1. A set of drive shafts 10 extends into the interior of the rotary seat 2 and is movably connected to the rotary seat 2. A drive motor 9 is installed on the outer wall of the rotary seat 2, which serves as power drives. A worm gear 7 is installed at the output end of the drive motor 9, and a worm wheel 8 is fitted on the surface of the drive shaft 10 on one side of the worm gear 7, and the worm gear 7 and the worm wheel 8 mesh with each other. Three sets of integrated frames 6 with equal spacing are symmetrically installed inside the placement frame 5.

[0029] Long-shaft automotive parts are inserted into the placement frame 5. The servo motor 13 is activated, driving the lead screw 12 to rotate. With the lead screw 12 threadedly connected to the threaded sleeve 11, the lead screw 12 moves the threaded sleeve 11. The threaded sleeve 11, via the hinge shaft 18, drives the linkage arm 17 to rotate. The linkage arm 17, via the linkage shaft 16, drives the adjusting arm 14 to rotate around the pin 23. The adjusting arm 14 drives the drive wheel 19 to rotate and contact the surface of the long-shaft part, thus clamping and fixing it in the center. Afterwards, the part is polished by a worker. The power motor 15 is activated, driving the drive wheel 19 to rotate. Multiple sets of drive wheels 19... With the cooperation of the drive wheel 19, the parts are moved to transport the unpolished parts to the worker's position for polishing. When the polishing position needs to be adjusted by rotation, the stepper motor 20 is turned on, and the stepper motor 20 drives the gear 21 to rotate. With the meshing of the gear 21 and the toothed ring 22, and the sliding cooperation between the placement frame 5 and the slip ring 4, the gear 21 drives the placement frame 5 and the parts to rotate in a circle through the toothed ring 22 to change and adjust the polishing position of the parts. This reduces the time for manual disassembly and replacement of parts, improves polishing efficiency, and realizes convenient centering and clamping of long shaft parts. It also facilitates multiple ways to adjust the polishing position of parts and improves the efficiency of part polishing.

[0030] The integrated frame 6 has a lead screw 12 installed inside, and a servo motor 13 is installed at one end of each lead screw 12. The servo motor 13 plays the role of power drive, and the servo motor 13 is fixedly connected to the placement frame 5.

[0031] The surface of the lead screw 12 is fitted with a threaded sleeve 11, and the threaded sleeve 11 is threadedly connected to the lead screw 12.

[0032] Each threaded sleeve 11 is provided with a linkage arm 17 on its side wall. Each linkage arm 17 is provided with a hinge shaft 18 at one end near the threaded sleeve 11, and the linkage arm 17 is movably connected to the threaded sleeve 11 through the hinge shaft 18.

[0033] An adjusting arm 14 is provided at the end of the linkage arm 17 away from the threaded sleeve 11. A linkage shaft 16 is provided on the side of the adjusting arm 14 close to the linkage arm 17. The adjusting arm 14 is movably connected to the linkage arm 17 through the linkage shaft 16.

[0034] Each adjusting arm 14 is provided with a pin 23 at one end near the integrated frame 6, and the adjusting arm 14 is movably connected to the integrated frame 6 through the pin 23.

[0035] Each of the side walls of the adjusting arm 14 is equipped with a power motor 15, which serves as a power drive, and each of the output ends of the power motor 15 is equipped with a drive wheel 19.

[0036] A gear 21 is installed at the output end of the stepper motor 20, and a gear ring 22 is installed on the outer wall of the mounting frame 5 on one side of the gear 21, and the gear 21 and the gear ring 22 mesh with each other.

[0037] When it is necessary to adjust the grinding angle of long shaft parts, turn on the drive motor 9, which drives the worm 7 to rotate. Under the mutual meshing of the worm 7 and the worm wheel 8, the worm 7 drives a set of drive shafts 10 to rotate through the worm wheel 8. With the movable support of another set of drive shafts 10, the drive shafts 10 drive the adjustment frame 3, slip ring 4, placement frame 5 and the parts to swing, thereby adjusting the angle of the parts. This makes it convenient to grind them from different angles and improves the convenience of grinding the parts.

[0038] Working principle: Long-shaft automotive parts are inserted into the placement frame 5. The servo motor 13 is turned on, driving the lead screw 12 to rotate. With the lead screw 12 threadedly connected to the threaded sleeve 11, the lead screw 12 moves the threaded sleeve 11. The threaded sleeve 11, through the hinge shaft 18, drives the linkage arm 17 to rotate. The linkage arm 17, through the linkage shaft 16, drives the adjusting arm 14 to rotate around the pin 23. The adjusting arm 14 drives the drive wheel 19 to rotate and contact the surface of the long-shaft part, thus clamping and fixing it in the center. Afterwards, the worker grinds the part. The power motor 15 is turned on, driving the drive wheel 19 to rotate. With the cooperation of multiple sets of drive wheels 19, the drive wheels 19 drive the part to move, transporting the un-grinded portion to the worker's position for grinding. When rotation and adjustment are needed for grinding... When positioning, turn on the stepper motor 20, which drives the gear 21 to rotate. Under the mutual meshing of the gear 21 and the gear ring 22, and the sliding cooperation of the placement frame 5 and the slip ring 4, the gear 21 drives the placement frame 5 and the part to rotate in a circle through the gear ring 22, thereby changing and adjusting the grinding position of the part. This reduces the time spent on manual disassembly and replacement of parts and improves grinding efficiency. When it is necessary to adjust the grinding angle of long shaft parts, turn on the drive motor 9, which drives the worm 7 to rotate. Under the mutual meshing of the worm 7 and the worm wheel 8, the worm 7 drives a set of drive shafts 10 to rotate through the worm wheel 8. With the movable support of another set of drive shafts 10, the drive shafts 10 drive the adjustment frame 3, the slip ring 4, the placement frame 5 and the part to swing, thereby adjusting the angle of the part and facilitating grinding from different angles.

[0039] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A rotary clamping fixture for automotive parts, comprising a support frame and a rotating base, characterized in that: A rotating seat is provided on the outer wall of the support frame, and a placement frame is provided above the support frame. Adjustment frames are symmetrically installed on the side walls of the placement frame, and a set of adjustment frames contains a stepper motor. Slip rings are symmetrically installed on the side of the adjustment frame near the placement frame, and the adjustment frame is slidably connected to the placement frame through the slip rings. A drive shaft is installed on the outer wall of each adjustment frame, and the drive shaft is movably connected to the support frame. A set of drive shafts extends into the interior of the rotating seat and is movably connected to the rotating seat. A drive motor is installed on the outer wall of the rotating seat, and a worm gear is installed at the output end of the drive motor. A worm wheel is fitted on the surface of the drive shaft on one side of the worm gear, and the worm gear and the worm wheel mesh with each other. Three sets of integrated frames are symmetrically installed at equal intervals inside the placement frame.

2. The rotary clamping fixture for automotive parts according to claim 1, characterized in that: Each integrated frame has a lead screw movably installed inside, and a servo motor is installed at one end of each lead screw, with the servo motor fixedly connected to the placement frame.

3. The rotary clamping fixture for automotive parts according to claim 2, characterized in that: The surface of the lead screw is fitted with a threaded sleeve, and the threaded sleeve is threadedly connected to the lead screw.

4. The rotary clamping fixture for automotive parts according to claim 3, characterized in that: Each threaded sleeve has a linkage arm on its side wall, and each linkage arm has a hinge shaft at the end near the threaded sleeve. The linkage arm is movably connected to the threaded sleeve through the hinge shaft.

5. The rotary clamping fixture for automotive parts according to claim 4, characterized in that: Each of the linkage arms is provided with an adjusting arm at the end away from the threaded sleeve, and each of the adjusting arms is provided with a linkage shaft on the side of the linkage arm closer to the linkage arm. The adjusting arm is movably connected to the linkage arm through the linkage shaft.

6. The rotary clamping fixture for automotive parts according to claim 5, characterized in that: Each of the adjusting arms is provided with a pin at the end near the integrated frame, and the adjusting arm is movably connected to the integrated frame through the pin.

7. The rotary clamping fixture for automotive parts according to claim 5, characterized in that: Each of the adjusting arms is equipped with a power motor on its side wall, and each power motor has a drive wheel installed at its output end.

8. The rotary clamping fixture for automotive parts according to claim 1, characterized in that: The output end of the stepper motor is equipped with a gear, and a gear ring is installed on the outer wall of the frame on one side of the gear, and the gear and the gear ring mesh with each other.