Machining method for machining large-lead large-pitch multi-head thread through three-axis linkage

Abstract

The invention relates to a machining method for machining a large-lead large-pitch multi-head thread through three-axis linkage. The machining method adopts a numerical control lathe provided with a power head and comprises the following machining steps of 1 clamping a workpiece on a machine tool spindle; 2 mounting a milling cutter on a power head in the cutter rest; 3 turning a multi-head external thread on the surface of the workpiece by using an external thread turning tool on the lathe; and 4 executing a tool changing program, calling the milling cutter clamped by the power head, and sleeking the threads at the inlet and the threads at the outlet of the multi-head external thread in a three-axis linkage manner. The turning and milling combined machining technology is adopted in the technological process, machining of the workpiece is completed on the lathe in the whole process, occupation of bench worker resources is avoided, and the machining efficiency and the workpiece qualification rate of the workpiece are effectively improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and relates to a method for processing threads on the surface of parts, in particular to a method for processing multi-start threads with large leads and large pitches by using three-axis linkage. Background technique [0002] The inner shell of the gyroscope is the key structural part of the gyroscope components. The outer surface is processed with multi-head external threads by turning. Based on the application requirements, heat-sensitive wires need to be wound on these threads separately, so the threads need to be polished. In order to remove the chamfer, the previous processing method required the fitter to manually smooth the entrance and exit of the multi-threaded milling cutter in sequence. For the four-threaded thread, there are as many as 8 places that need to be modified for each part, resulting in the inner shell of the gyroscope. The processing time of the body is long,...

AI Technical Summary

Problems solved by technology

[0007] In this process, the processing of multi-start threads needs to be completed in the "lathe-fitter", which requires 2 processing procedures. The key structure of this part has high precision requirements, and the consistency of the fitter's manual trimming and chamfering is not good. , there is also the possibility of wrong processing and missing processing, and the requirements for fitters are very high. Therefore, the fitter processing process of the inner shell parts of the gyroscope has become a key bottleneck in the supporting production of the gyroscope.

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