Eccentric shaft machining method

Abstract

The invention relates to the field of machining, in particular to an eccentric shaft machining method. The eccentric shaft machining method comprises the following steps of conducting feeding, wherein a proper blank material is selected, and certain working allowance is reserved; conducing coarse machining, wherein the left end of a workpiece is clamped, the right end face and the outer circle of the workpiece are turned, 0.5 mm machining allowance is reserved, a center hole is drilled through a standard center drill, the right end of the workpiece is clamped through reversing, the left end face of the workpiece is turned, the overall length of the left end face of the workpiece is measured, and a center hole of the left end face is drilled; conducting semi-finish machining, wherein an eccentric sleeve is clamped to the outer circle of the workpiece. The eccentric sleeve is used as a locating element, the outer circles of all sections of an eccentric shaft are machined, the axial distances of the outer circles of the sections of the eccentric shaft are easy to guarantee, and accurate and reliable locating reference is provided for machining of the center holes. During grinding, the part is installed in the mode that one center hole is used for clamping and the other center hole is used for ejecting, the machining precision of the part can be conveniently guaranteed, a turning clamp which is complexly designed is omitted, the production cycle is shortened, and the productivity is increased.

Description

technical field [0001] The invention relates to the field of machining, in particular to a machining method for an eccentric shaft. Background technique [0002] The central hole is a commonly used benchmark for shaft parts, the process benchmark for shaft parts, and the measurement benchmark for shaft parts, so the central hole plays a very important role in shaft parts. When lathes are used to process eccentric shaft parts, they generally need to be installed with lathe fixtures. If they are produced in small batches of one piece, the production cost will be relatively high. Reasonably arrange the processing technology, design the eccentric sleeve as the positioning element, and use the center hole as the positioning reference, which conforms to the principles of "reference coincidence" and "reference uniformity", and avoids processing errors caused by reference misalignment and multiple clamping, which is beneficial Improve the machining accuracy of the workpiece. Howev...

AI Technical Summary

Problems solved by technology

[0003] The eccentric shaft is a common part widely used in the machinery industry. Due to the eccentricity and eccentricity of the eccentric shaft, it is difficult to process the eccentric shaft. Although the current eccentric shaft processing method can produce the eccentric shaft, the processing efficiency is low. , and the machining accuracy cannot be well guaranteed. For eccentric shafts with high precision requirements, waste products will be generated, which will increase production costs and reduce economic benefits.