Novel automatic tolerance adjusting device

Abstract

The invention provides a novel automatic tolerance adjusting device which comprises an upper shell, a positioning stud, a locking gasket, a star-like piece and an adjusting nut. The upper and lower ends of the positioning stud are fixedly connected with the upper shell and the adjusting nut through threads, and the locking gasket is arranged in a first inner cavity of the upper shell and freely moves in an axial hole gap; and the outer wall of the star-like piece is provided with a pusher dog, the star-like piece is arranged in a second inner cavity of the positioning stud and freely moves ina star-like hole gap, and the pusher dog pushes and adjusts a star-like boss of the adjusting nut and drives the adjusting nut to rotate. The novel automatic tolerance adjusting device fully utilizeskinetic energy generated by rotation and advancement of bolts, can achieve automatic rigid supporting to eliminate tolerance accumulation, realizes rapid and effective precise positioning and assembling, and solves the problems that in the prior art, the steps are many, the cost is high, the operation technical difficulty is high, and the work efficiency is low; and meanwhile, the overall structure is fixed in rigidness and suitable for application to special conditions with higher strength.

Description

technical field [0001] The present invention relates to the technical field of tolerance adjustment devices, in particular to a novel automatic tolerance adjustment device. Background technique [0002] With the rapid development of the automobile industry, the requirements for parts assembly are getting higher and higher. In the assembly process involving three or more parts, the assembly positioning and final matching effect cannot meet the requirements due to the accumulation of manufacturing and assembly tolerances. The current solution is: 1. Reduce the manufacturing tolerance, but this will lead to a sharp increase in cost, and at the same time it cannot effectively eliminate the accumulated tolerance to achieve positioning and matching expectations; 2. Use adjusting nuts, but manual adjustment is used during the assembly process. The experience and ability of the operating staff is extremely demanding, and the work efficiency is greatly reduced at the same time. Con...

AI Technical Summary

Problems solved by technology

[0003] In view of the defects in the prior art, the purpose of the present invention is to provide a new type of automatic tolerance adjustment device. The present invention makes full use of the kinetic energy of bolt rotation and advancement, which can automatically rigidly support and eliminate tolerance accumulation, and realize fast and effective precise positioning and assembly. It solves the defects of many procedures, high cost, high technical difficulty in operation and low work efficiency in the existing technology, and at the same time, the overall structure is rigid and fixed, which is suitable for the application of special circumstances with higher strength

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