Machining method of ultra-slender shaft

Abstract

The invention relates to the field of machining, in particular to a machining method of an ultra-slender shaft. The method comprises the following steps of preparing a material, namely selecting a blank of which the machining allowance is 5mm; performing heat treatment normalization, wherein the hardness is 185-215HB; straightening a workpiece by using a reverse straightening method, wherein the total length curvature is smaller than or equal to 0.5mm; milling and grinding two claws of a follow rest; positioning the workpiece; grinding the workpiece; roughly lathing the workpiece; finely lathing the workpiece. According to the machining method, the dimension accuracy, the shape accuracy and the surface roughness of parts can be guaranteed, the machining process is simple and convenient, and the method is simple and easy to learn.

Description

technical field

[0001] The invention relates to the field of mechanical processing, in particular to a processing method for an ultra-slender shaft. Background technique

[0002] Turning slender shafts is a relatively difficult technical task, especially for turning ultra-slender shafts. If the traditional clamping method of one clamp and one top is adopted, that is, a three-jaw chuck is used for clamping on one side, and the other end is clamped with a The top of the tailstock is tight, and it is very difficult to process. The workpiece is not only prone to "bamboo shape", "polygonal shape" and "waist drum shape", but sometimes it cannot be processed at all, and this kind of workpiece cannot be ground only Cars can be used instead of grinding and processed on a lathe, and the dimensional accuracy, shape accuracy and surface roughness of the processed parts cannot meet the requirements, and it is easy to produce waste products. Contents of the invention

[0003] In order ...