Special clamp for five-axis machining center of automobile steering knuckle structural part

Abstract

The invention discloses a special clamp for a five-axis machining center of an automobile steering knuckle structural part, and relates to the technical field of tool clamps. A clamp body is of a triangular structure, a first telescopic fixing block is fixed to the first corner of the clamp body through a fastening screw, a second telescopic fixing block is fixed to the second corner of the clamp body through a fastening screw, and a third telescopic fixing block is fixed to the third corner of the clamp body through a fastening screw. A fourth telescopic fixing block is arranged between the second telescopic fixing block and the third telescopic fixing block and fixedly connected with the clamp body through a fastening screw. The four telescopic fixing blocks on the clamp are uniformly controlled by a hydraulic oil way system, a steering knuckle is placed at the corresponding positioning position, clamping and fixing actions can be completed at a time through the hydraulic oil way system, shaking cannot be generated in the machining process, movement is uniform and stable, reversing impact is small, the machining operation precision of workpieces is high, consistency is well, and the clamp has larger market popularization value.

Description

technical field [0001] The invention relates to the technical field of fixtures, in particular to a special fixture for a five-axis machining center of an automobile steering knuckle structural part. Background technique [0002] Automobile steering knuckle is one of the important components on the automobile steering axle. It is mainly composed of supporting journal, flange, yoke and steering knuckle arm. When the automobile steering knuckle is working, it is mainly used to transmit the driving direction of the automobile and drive The front wheels of the car turn on the main shaft, which makes the car turn and drive stably. The car steering knuckle is usually connected to the body through three bushes and two bolts, and connected to the brake system through the brake mounting hole of the flange. During the driving process of the car, the steering knuckle is subjected to variable loads, so higher requirements are put forward for the processing quality of the steering knuck...

AI Technical Summary

Problems solved by technology

However, due to the technical characteristics of automobile steering knuckles with complex structures and various forms, many steering knuckle machining holes and distributed in all directions in space, the processing fixtures in the prior art have disadvantages such as complicated clamping, cumbersome procedures, and low processing efficiency. , cannot meet its processing quality requirements, and seriously restricts the mass production of automobile steering knuckles

[0003] The prior art discloses the application number: CN201820323304.5 The automobile steering knuckle fixture mechanism, which completes all the processing positions of the product in one clamping through the pressing device and the positioning device, which not only reduces the feeding time and improves the production efficiency, but also can The processing error caused by multiple clamping is eliminated, thereby improving the processing quality of the product. However, this structure adopts manual clamping to install and fix the car steering knuckle and the fixture through pneumatic control. After installation, the connection strength is not strong. Pneumatically controlling the internal pipeline gas in the processing process is easy to produce a certain degree of compressibility, which affects the processing accuracy of the process, and then affects the dimensional quality of the product, resulting in poor consistency and other problems

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