Stainless steel screw tap

Abstract

The invention discloses a stainless steel screw tap. The stainless steel screw tap comprises a metal knife edge and a metal handle, wherein the metal knife edge and the metal handle are integrated; the screw tap is in the shape of a cylinder and is placed transversely; the right end of the metal handle is turned into a right process tip which is a cone; the left side of the right process tip on the metal handle is turned into a square head; the left end of the metal handle is turned into a circle of 30-degree fillet to form a middle cone; the left surface of the metal handle is connected with the metal knife edge; three spiral grooves are formed in the metal knife edge from left to right and are uniformly distributed in the metal knife edge, and three spiral knife ribbons are formed correspondingly; the left end of the metal knife edge is subjected to relief grinding to form a left process tip which is a cone; the right part of the left process tip on the metal knife edge is subjected to relief grinding to form a left cone; groove bottoms of the three spiral grooves are arc-shaped bottoms, and the core thickness of the screw tap can reach 5 mm; the three knife ribbons are respectively subjected to relief grinding to form knife edge teeth, and a knife edge groove is formed between each two adjacent knife edge teeth in a relief grinding manner; and blades and knife edges are respectively arranged on outer rings of left surfaces of the three spiral knife ribbons in a grinding manner.

Description

technical field [0001] The invention relates to a stainless steel tap, specifically a new type of tool used in mechanical processing and manufacturing—a new type of tap, which has three spiral grooves. Background technique [0002] As we all know, mechanical manufacturing requires machine tools and tools for manufacturing, both of which are indispensable. The famous tool "Ni Zhifu Drill Bit" in the 20th century once won glory for the country. Comrade Ni Zhifu also became an outstanding representative of workers and served as the chairman of the All-China Federation of Trade Unions. It can be seen that the importance of using good tools in the manufacturing industry, only good tools can produce good products. With the unprecedented development of China's machinery industry, the demand for metal cutting tools is increasing day by day, and better tools such as new taps are needed to meet the development of existing production. Usually, ordinary taps for processing metal mater...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome defects such as wrong design and unreasonable structure of ordinary taps, resulting in incomplete processing, poor product quality, low utilization rate, frequent chipping, blunt mouth and other defects, the invention provides a stainless steel tap, which is a new type of tap , with three spiral grooves, correct design, reasonable structure, can run normally in work, firm connection, good working performance, good running effect, so as to ensure stable work in place, high machining accuracy, sharp blade and long service life

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