Manufacturing method of rectangular internal thread with fixed starting point

Abstract

The invention proposes a method for manufacturing a rectangular internal thread with a fixed starting point, which belongs to the field of machining; the steps of the method include clamping, determining the starting point of the thread line and calculating its tool setting value, aligning the plane of the part, tool setting and thread processing, and machining After the completion, measure with a special measuring tool; the tool setting value that guarantees the starting point size can be calculated by setting the starting point rectangular internal thread tool setting formula, first determine the starting point position, and then perform thread processing; First determine the starting position, and then process the thread to make the thread starting point meet the predetermined requirements; it can process rectangular threads in complex non-rotating parts, suitable for single-piece or batch production.

Description

technical field [0001] The invention belongs to the field of machining, and in particular relates to a method for manufacturing a fixed-point rectangular internal thread. Background technique [0002] The existing manufacturing method of fixed-point rectangular internal thread is: 1. Regardless of the thread starting position, process according to the ordinary thread processing method. 2. Use a special measuring tool for measuring the starting point position to measure the actual position of the thread starting point for processing. According to the measured position, remove the threaded end face to ensure the starting point size. This processing method belongs to the trial cutting method. Its advantage is that the thread processing method is simple and is suitable for simple rotary parts; however, it is necessary to use a special measuring tool to measure the thread starting point multiple times and process the thread end face repeatedly, which is not suitable for mass pro...

AI Technical Summary

Problems solved by technology

This processing method belongs to the trial cutting method. Its advantage is that the thread processing method is simple and is suitable for simple rotary parts; however, it is necessary to use a special measuring tool to measure the thread starting point multiple times and process the thread end face repeatedly, which is not suitable for mass production. ; For complex non-revolving parts, the starting point of the thread and other characteristic parts are on the same reference plane. When determining the starting point of the thread in the existing manufacturing method, the dimensions of other characteristic parts need to be guaranteed at the same time. If the dimensional accuracy of other characteristic parts is high, it will Difficulty in processing parts or failure to guarantee dimensional accuracy of other parts

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