Clamp for eccentric machining

Abstract

The invention relates to the technical field of eccentric part machining, and particularly relates to a clamp for eccentric machining. The invention provides the clamp for eccentric machining in orderto improve the machining precision, the machining quality and the production efficiency of a tensioning wheel and reduce the production cost, wherein a connecting through hole is formed in the middleof an inner supporting clamp, an inner supporting convex ring and a positioning key are arranged at the top of the inner supporting clamp, and a limiting protrusion is arranged on the lower portion of the inner supporting clamp; the inner supporting clamp is installed in a containing groove in the top of a connecting piece, the limiting protrusion is clamped in a limiting groove in the connectingpiece, and an inner supporting screw is inserted into the connecting through hole and a screw hole in the bottom of the containing groove to be in threaded connection with the connecting piece; an eccentric part is fixedly installed at the bottom of the connecting piece, and two eccentric protruding blocks are arranged at the bottom end of the eccentric part and inserted into eccentric clamping grooves; and eccentric flow channels communicating with the eccentric clamping grooves are arranged at the two ends of the eccentric clamping grooves respectively. The clamp for the eccentric machiningis adopted for auxiliary machining, precision is high, efficiency is high, quality is high, and production cost is low.

Description

technical field [0001] The invention relates to the technical field of eccentric component processing, in particular to a clamp for eccentric processing. Background technique [0002] figure 1 Shown is the tensioner 01 for automobiles. The main function of the tensioner 01 is to adjust the tightness of the automobile belt, avoid the belt from slipping or wearing too fast, and prolong the service life of the belt. figure 1 The inner hole 011 and the outer wall 012 of the shown tensioning wheel 01 are arranged eccentrically. At present, when processing the tensioner 01, it is first necessary to use a clamp to hold the blank and use a lathe to process the inner hole 011; then according to the eccentricity between the inner hole 011 and the outer wall 012 and the inner hole 011 as a reference, the manufacturing The radial eccentric fixture clamps the blank, and turns the outer wall 012 of the tensioner. Processing the tensioner in this way has the following problems: [0003...

AI Technical Summary

Problems solved by technology

[0003] 1. The processing process is divided into two processes, and the fixture needs to be clamped twice during processing, which leads to low processing accuracy and cannot guarantee the processing size of the tensioner, especially the gap between the inner hole and the outer wall of the tensioner. Machining accuracy of eccentricity;

[0004] 2. During the processing, the secondary clamping can easily lead to bruises and scratches on the wall of the inner hole, which will affect the subsequent smoothness treatment, and then affect the processing quality of the tensioner;

[0005] 3. The processing process is divided into two processes, which greatly increases the cost of processing time, resulting in low processing efficiency and high production costs

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