Method for removing incomplete thread by turning of numerically controlled lathe

Abstract

The invention relates to a method for removing an incomplete thread by turning of a numerically controlled lathe based on parameters such as the diameter of a thread root, the height of the thread, the width of the thread root, thread pitch and the length of a thread head. The method comprises the following steps of: selecting an appropriate groove cutter; computing the rotational speed of a main shaft; determining cutter compensation; determining the number of machining layers; calculating cutting output of a rough machining layer and a fine machining layer; and removing the incomplete thread by rough machining and fine machining. The method is convenient and simple in operation, machining equipment is not required to be replaced during machining, and the machining of the thread and the removal of the incomplete thread can be realized; the machining quality is good, and the effect is stable; and carrying and disassembly of parts are eliminated, the machining efficiency is improved, the labor intensity of a worker and the machining cost are reduced, and the method is applicable to mass production and machining.

Description

technical field [0001] The invention relates to a method for removing incomplete threads, in particular to a method for removing incomplete threads by turning with a multi-lathe. Background technique [0002] During thread processing, the thread head and tail will produce a thread with an incomplete cross-section, also known as the thread leading thread and the thread end thread. This incomplete thread shows that the bottom of the tooth is complete and the top of the tooth is incomplete. Incomplete threads are deformed due to insufficient strength, resulting in thread damage and disordered teeth, which greatly reduce the service life of threads. In order to ensure quality and service life, it is required to remove incomplete threads. At present, the incomplete threads are removed after the thread processing is completed, and the secondary processing is carried out by fitter filing or grinding, milling (including CNC milling). During processing, the operator needs to consta...

AI Technical Summary

Problems solved by technology

During processing, the operator needs to constantly move and unload parts, which consumes a lot of physical strength, and the processing efficiency is low, and a special equipment is required to remove incomplete threads

The turning and milling machining center with power turret can remove incomplete threads by milling while turning the threads. For small and medium-sized enterprises or small batch production, this kind of machine tool is more expensive, one-time investment is large, and equipment maintenance costs are high.

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