Precise automobile part machining fixing jig

By combining components such as lifting screws and adjusting turntables, the problem of unstable clamping of precision automotive parts by existing fixtures has been solved, achieving stable and precise clamping of parts, reducing production costs and scrap rates, and improving production efficiency.

CN223777132UActive Publication Date: 2026-01-09KUNSHAN ZHONGSHI MOULD TECH CO LTD
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Patent Information

Application Number
CN202520534978.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-01-09
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

Existing fixtures are unstable in clamping complex and precision automotive parts. The adjustment process relies on manual measurement, which is inefficient and makes it difficult to guarantee clamping accuracy, resulting in high scrap rates and increased production costs.

Method used

A multifunctional fixture including a lifting component, an adjusting component, a driving component, a moving component, and a limiting component was designed. Through the combination of a lifting screw, an adjusting turntable, and a clamping plate, the height and angle of the parts can be precisely adjusted to ensure stable clamping.

Benefits of technology

It enables flexible and precise clamping of precision automotive parts of different shapes and specifications, reduces scrap rate, reduces the need for different types of jigs, and improves production efficiency and resource utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a precise automobile part machining fixing jig which comprises a workbench and parts, a driving part is rotationally arranged at the bottom end in an adjusting part, an adjusting rotary disc is rotationally arranged at the top end of the adjusting part, a moving part is fixed to the top end of the adjusting rotary disc, a plurality of telescopic rods are fixed to one side of the moving part, and the telescopic rods are fixed to the other side of the moving part. A clamping plate is rotationally arranged at one end of the telescopic rod, and a limiting piece is fixed to one side of the top end of the adjusting piece. The clamping angle can be adjusted in a self-adaptive mode through a second spring between a supporting and clamping vertical plate and a clamping plate, a limiting rod sliding in a supporting and limiting vertical plate is matched with a limiting hole in the outer wall of an adjusting rotary disc, the rotating angle of the adjusting rotary disc is limited, the clamping angle can be flexibly and accurately adjusted by the clamping plate according to the shape and machining requirements of parts, and the machining efficiency is improved. It is ensured that precise automobile parts of different shapes can be stably and reliably clamped, the stability of the parts in the machining process is effectively improved, and the risk that the parts are displaced or damaged due to improper clamping is reduced.
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Description

Technical Field

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

[0002] Automotive parts are the various components that make up a car and the products that serve the car. There are many types of automotive parts. As people's living standards improve, people's consumption of cars is also increasing, and the market for automotive parts is becoming larger and larger. In recent years, automotive parts manufacturers have also been developing rapidly.

[0003] Most current fixtures have fixed clamping angles and are only suitable for parts with specific shapes. They cannot achieve stable and reliable clamping for complex and diverse precision automotive parts. Even if some fixtures have adjustable clamping angles, the adjustment process relies on a lot of manual measurement and repeated adjustments, which is inefficient and makes it difficult to guarantee the accuracy of the clamping angle. Parts are very prone to displacement or even damage during processing due to improper clamping, resulting in a high scrap rate. Because existing fixtures have limited ability to adjust the height, horizontal position, and clamping angle of parts, it is necessary to equip them with multiple different types of fixtures. This undoubtedly increases the production cost of enterprises, wastes production resources, and reduces production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a precision automotive parts machining fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precision automotive parts machining fixture, comprising a worktable and components. A lifting component is fixed to the top of the worktable, a sliding crossbar is fixed to the top of the lifting component, an adjusting component slides on the outer wall of the sliding crossbar, a driving component rotates at the bottom of the adjusting component, an adjusting turntable rotates at the top of the adjusting component, a moving component is fixed to the top of the adjusting turntable, a plurality of telescopic rods are fixed to one side of the moving component, a clamping plate rotates at one end of the telescopic rods, and a limiting component is fixed to one side of the top of the adjusting component.

[0006] Preferably, the lifting component includes a lifting sleeve, the lifting sleeve is fixed at the four corners of the top of the worktable, the top of the lifting sleeve has an adjusting ring that rotates, and the internal thread of the adjusting ring has a lifting screw.

[0007] Preferably, the adjusting component includes a sliding block, the outer wall of the sliding crossbar is slidably fitted with the sliding block, a limiting rod is slidably fitted inside one side of the sliding block, and a reset vertical plate is fixed to one side wall of the limiting rod.

[0008] Preferably, a first spring is fixed to one side wall of the reset vertical plate, and the other side of the first spring is fixed to the outer wall of the sliding block, so that the reset vertical plate can be reset by its own elasticity.

[0009] Preferably, the driving component includes a driving rod, a cavity is formed inside the bottom end of the sliding block, the driving rod rotates inside the cavity, and a driving gear is fixed to one outer wall of the driving rod.

[0010] Preferably, the bottom end of the sliding crossbar is provided with teeth that match the outer wall of the drive gear, so that the sliding block can be moved by the drive gear. The front surface of the sliding crossbar is provided with multiple limiting holes, which are used in conjunction with the limiting rod to limit the sliding block.

[0011] Preferably, the movable component includes a clamping ring, the top of the adjusting turntable is fixed with the clamping ring, the internal thread of the clamping ring has a driving screw, and one end of the driving screw has a clamping vertical plate that rotates.

[0012] Preferably, one side of the support plate is fixed with a second spring, and the other side of the second spring is fixed to one side of the clamping plate, so that the clamping angle of the clamping plate can be adjusted by its elasticity.

[0013] Preferably, the limiting member includes a supporting vertical plate, and the supporting vertical plate is fixed to one side of the top of the sliding block. The supporting vertical plate has a through hole inside, and a limiting rod slides in the through hole. One end of the limiting rod is fixed to a linkage vertical plate.

[0014] Preferably, the outer wall of the adjusting turntable is provided with multiple limiting holes, which, together with the limiting rod, limit the adjusting turntable to adjust the clamping angle of the clamping plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By setting support sleeves at the four corners of the top of the worktable, and rotating the top adjustment ring which is threadedly connected to the lifting screw, rotating the adjustment ring can drive the lifting screw to move up and down using the threaded transmission, thereby precisely adjusting the height of the support slide bar. This allows the fixture to quickly adapt to the machining needs of precision automotive parts of different heights. It is easy to operate and helps to improve the control of the height and position of the parts during the machining process, ensuring the accuracy of the machining.

[0017] The adjusting turntable is mounted on the top of the adjusting component, and a clamping ring is fixed to its top. The clamping ring is internally threaded with a drive screw, which drives the clamping vertical plate to move. In turn, the position of the clamping plate is adjusted by a telescopic rod. The second spring between the clamping vertical plate and the clamping plate can adaptively adjust the clamping angle. The limiting rod that slides inside the clamping vertical plate cooperates with the limiting hole on the outer wall of the adjusting turntable to limit the rotation angle of the adjusting turntable. This allows the clamping plate to flexibly and accurately adjust the clamping angle according to the shape of the part and the processing requirements, ensuring stable and reliable clamping of precision automotive parts of different shapes. This effectively improves the stability of the parts during processing and reduces the risk of displacement or damage to the parts due to improper clamping.

[0018] This fixture can adapt to the machining of precision automotive parts of various specifications and shapes. Whether it is the height, horizontal position, or clamping angle, it can be flexibly adjusted through the corresponding adjustment mechanism, which greatly expands the applicability of the fixture, reduces the cost for enterprises to equip multiple fixtures for machining different parts, and improves the utilization rate of production resources. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 for Figure 1 A frontal cross-sectional schematic diagram of the connection structure;

[0021] Figure 3 for Figure 1 A top-view cross-sectional schematic diagram of the connection structure;

[0022] Figure 4 for Figure 2 Enlarged connection structure diagram at point A;

[0023] Figure 5 for Figure 3 Enlarged connection structure diagram at point B;

[0024] Figure 6 for Figure 3 A magnified schematic diagram of the connection structure at point C.

[0025] In the diagram: 1. Workbench, 2. Components, 3. Lifting sleeve, 4. Adjusting ring, 5. Lifting screw, 6. Supporting crossbar, 7. Sliding block, 8. Limiting rod, 9. Reset vertical plate, 10. Drive rod, 11. Drive gear, 12. Adjusting turntable, 13. Supporting ring, 14. Drive screw, 15. Supporting vertical plate, 16. Telescopic rod, 17. Clamping plate, 18. Supporting vertical plate, 19. Limiting rod, 20. Linkage vertical plate. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-6 This utility model provides a technical solution: a precision automotive parts processing fixture, including a worktable 1 and a component 2. A lifting component is fixed at the top of the worktable 1, and a sliding crossbar 6 is fixed at the top of the lifting component. The sliding crossbar 6 limits the movement of the sliding block 7. An adjusting component slides on the outer wall of the sliding crossbar 6. A driving component rotates at the bottom of the adjusting component. An adjusting turntable 12 rotates at the top of the adjusting component. The adjusting turntable 12 rotates to adjust the angle of the clamping ring 13. A moving component is fixed at the top of the adjusting turntable 12. Multiple telescopic rods 16 are fixed on one side of the moving component. The telescopic rods 16 support the clamping plate 17 and provide a rotation fulcrum for it. The clamping plate 17 rotates at one end of the telescopic rod 16. The clamping plate 17 clamps the component 2 by driving the driving screw 14. A limiting component is fixed on one side of the top of the adjusting component.

[0028] The lifting component includes a lifting sleeve 3. The lifting sleeve 3 is fixed at the four corners of the top of the worktable 1. The lifting sleeve 3 supports the adjusting ring 4. The top of the lifting sleeve 3 rotates to have the adjusting ring 4. The rotation of the adjusting ring 4 can drive the lifting screw 5 to move up and down through the internal threads. The internal threads of the adjusting ring 4 have the lifting screw 5. The lifting screw 5 drives the sliding crossbar 6 to move up and down through the driving of the adjusting ring 4.

[0029] The adjusting component includes a sliding block 7. The sliding block 7 slides on the outer wall of the sliding crossbar 6. The sliding block 7 can drive the various components installed on its outer wall to move through the drive component. A limiting rod 8 slides inside one side of the sliding block 7. The limiting rod 8 limits the sliding block 7 through a limiting hole opened on one side wall of the sliding crossbar 6. A reset vertical plate 9 is fixed to one side wall of the limiting rod 8. The reset vertical plate 9 can drive the limiting rod 8 to reset and insert into the limiting hole through a spring fixed to its inner side wall to limit the sliding block 7. A first spring is fixed to one side wall of the reset vertical plate 9. The other side of the first spring is fixed to the outer wall of the sliding block 7, so that the reset vertical plate 9 can be reset through its own elasticity.

[0030] The driving component includes a driving rod 10. A cavity is formed inside the bottom end of the sliding block 7. The driving rod 10 rotates inside the cavity and can drive the driving gear 11 to rotate. The driving gear 11 is fixed on one outer wall of the driving rod 10. The driving gear 11 can drive the sliding block 7 to move through the teeth provided at the bottom end of the sliding crossbar 6. The bottom end of the sliding crossbar 6 is provided with teeth that match the outer wall of the driving gear 11. Thus, the sliding block 7 can be moved by the driving of the driving gear 11. Multiple limiting holes are opened on the front surface of the sliding crossbar 6, so as to limit the sliding block 7 in conjunction with the limiting rod 8.

[0031] The movable component includes a clamping ring 13. The top of the adjusting turntable 12 is fixed with the clamping ring 13. The clamping ring 13 drives the drive screw 14 to adjust the clamping angle of the clamping plate 17 by rotating the adjusting turntable 12. The internal thread of the clamping ring 13 has a drive screw 14. The drive screw 14 can drive the clamping vertical plate 15 to move through the thread on the outer wall. One end of the drive screw 14 rotates to the clamping vertical plate 15. The clamping vertical plate 15 supports the telescopic rod 16 and can drive it to move. One side of the clamping vertical plate 15 is fixed to one side of a second spring. The other side of the second spring is fixed to one side of the clamping plate 17. The clamping angle of the clamping plate 17 is adjusted by its elasticity.

[0032] The limiting component includes a supporting vertical plate 18. The supporting vertical plate 18 is fixed to one side of the top of the sliding block 7. The limiting vertical plate 18 supports the limiting rod 19 and limits its movement. The supporting vertical plate 18 has a through hole inside, and the limiting rod 19 slides in the through hole. The limiting rod 19 is limited by the limiting hole on the outer wall of the adjusting turntable 12. One end of the limiting rod 19 is fixed to a linkage vertical plate 20. The linkage vertical plate 20 can drive the limiting rod 19 to reset by a spring fixed on its inner side wall, so that it can be inserted into the limiting hole on the outer wall of the adjusting turntable 12. The outer wall of the adjusting turntable 12 has multiple limiting holes, which, together with the limiting rod 19, limit the adjusting turntable 12, thereby adjusting the clamping angle of the clamping plate 17.

[0033] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0034] When it is necessary to clamp component 2, rotate the adjusting ring 4. The rotation of the adjusting ring 4, through the thread on its inner wall, drives the lifting screw 5 to move up and down. When the lifting screw 5 moves up and down, the sliding crossbar 6 fixed at its top also moves accordingly. The up and down movement of the sliding crossbar 6 drives the parts on its outer wall to move through the sliding block 7. When the sliding crossbar 6 moves to the appropriate position, pull the reset vertical plate 9 forward. The electric limit rod 8 of the reset vertical plate 9 disengages from the limit hole opened on one side wall of the sliding crossbar 6, thereby canceling the limit on the sliding block 7. Rotate the drive rod 10. The drive gear 11 fixed at one end of the drive rod 10 also rotates accordingly. The rotation of the drive gear 11 converts the rotational power into linear energy through the teeth set at the bottom of the sliding crossbar 6. Linear power drives the sliding block 7 to move, which in turn drives the adjusting turntable 12 to move. The vertical plate 20 moves to the right, which in turn drives the limiting rod 19 to move to the right, thus canceling the limiting of the adjusting turntable 12. Then the adjusting turntable 12 is rotated, and the adjusting turntable 12 drives the clamping plate 17 to move through the parts set at its top, thereby adjusting the clamping angle of the clamping plate 17. The starting screw 14 is rotated, and the driving screw 14 rotates through the threads set on the outer wall to drive the supporting clamping vertical plate 15 to move. The supporting clamping vertical plate 15 drives the telescopic rod 16 to move, and the telescopic rod 16 drives the clamping plate 17 to move. After the clamping plate 17 is attached to the surface of the component 2, the spring set on its back adaptively adjusts the clamping angle of the clamping plate 17.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision automotive parts machining fixture, comprising a worktable (1) and components (2), characterized in that, The top of the workbench (1) is fixed with a lifting component, the top of the lifting component is fixed with a sliding crossbar (6), the outer wall of the sliding crossbar (6) is slidably fitted with an adjusting component, the bottom of the adjusting component is rotated with a driving component, the top of the adjusting component is rotated with an adjusting turntable (12), the top of the adjusting turntable (12) is fixed with a moving component, one side of the moving component is fixed with multiple telescopic rods (16), one end of the telescopic rod (16) is rotated with a clamping plate (17), and one side of the top of the adjusting component is fixed with a limiting component.

2. The precision automotive parts machining fixture according to claim 1, characterized in that, The lifting component includes a lifting sleeve (3), and the lifting sleeve (3) is fixed at the four corners of the top of the worktable (1). The top of the lifting sleeve (3) has an adjusting ring (4) that rotates, and the internal thread of the adjusting ring (4) has a lifting screw (5).

3. The precision automotive parts machining fixture according to claim 1, characterized in that, The adjusting component includes a sliding block (7), the outer wall of the sliding crossbar (6) is slidably fitted with the sliding block (7), a limiting rod (8) is slidably fitted inside one side of the sliding block (7), and a reset vertical plate (9) is fixed to one side wall of the limiting rod (8).

4. A precision automotive parts machining fixture according to claim 3, characterized in that, A first spring is fixed to one side wall of the reset vertical plate (9), and the other side of the first spring is fixed to the outer wall of the sliding block (7), so that the reset vertical plate (9) is reset by its own elasticity.

5. A precision automotive parts machining fixture according to claim 3, characterized in that, The driving component includes a driving rod (10), and a cavity is formed inside the bottom end of the sliding block (7). The driving rod (10) rotates inside the cavity, and a driving gear (11) is fixed on one side of the outer wall of the driving rod (10).

6. A precision automotive parts machining fixture according to claim 5, characterized in that, The bottom end of the sliding crossbar (6) is provided with teeth that match the outer wall of the drive gear (11), so that the sliding block (7) can be moved by the drive of the drive gear (11). The front surface of the sliding crossbar (6) is provided with multiple limiting holes, so as to limit the sliding block (7) in conjunction with the limiting rod (8).

7. A precision automotive parts machining fixture according to claim 1, characterized in that, The movable component includes a clamping ring (13), the top of the adjusting turntable (12) is fixed with the clamping ring (13), the internal thread of the clamping ring (13) has a drive screw (14), and one end of the drive screw (14) has a clamping vertical plate (15) rotating.

8. A precision automotive parts machining fixture according to claim 7, characterized in that, One side of the support vertical plate (15) is fixed with a second spring, and the other side of the second spring is fixed on one side of the clamping plate (17). The clamping angle of the clamping plate (17) is adjusted by its elasticity.

9. A precision automotive parts machining fixture according to claim 3, characterized in that, The limiting component includes a supporting vertical plate (18). The supporting vertical plate (18) is fixed on one side of the top of the sliding block (7). A through hole is opened inside the supporting vertical plate (18). A limiting rod (19) slides in the through hole. A linkage vertical plate (20) is fixed at one end of the limiting rod (19).

10. A precision automotive parts machining fixture according to claim 9, characterized in that, The outer wall of the adjustment turntable (12) is provided with multiple limiting holes, which, together with the limiting rod (19), limit the adjustment turntable (12) to adjust the clamping angle of the clamping plate (17).