Novel efficient screw tap

Abstract

The invention discloses a novel efficient screw tap and relates to the technical field of cutters. The screw tap comprises a handle part, a working part, cutting chip accommodating grooves, a cutting cone, a guiding part, a guiding chip accommodating groove and a positioning column; one end of the handle part is connected with the working part; the cutting cone is arranged at one end of the working part; a plurality of longitudinal cutting chip accommodating grooves are formed in one end of the working part; one end of the working part is connected with the guiding part; the guiding chip accommodating groove is formed in the guiding part; the guiding chip accommodating groove is consistent with the cutting chip accommodating grooves in direction; and the center of one end of the guiding par is connected with the positioning column. With the novel efficient screw tap, the machining accuracy can be guaranteed, the service life is prolonged, the problem that a traditional handle part and a traditional working part are subjected to friction welding and are broken easily is solved, and the screw tap has the advantages of being simple in structure, reasonable in arrangement, low in manufacturing cost and the like.

Description

Technical field [0001] The invention relates to the technical field of cutting tools, in particular to a new type of high-efficiency tap. Background technique [0002] Wire taps and wire plates (screw taps and screw plates or screw taps and screw molds) are tools used to make spiral inner holes (nuts) and spiral outer circumferences (screws), respectively, to be fixed by torque rotation. Most of them are made of tool steel and used in metalworking. Both require the assistance of a tap wrench to increase the torque. [0003] Taps are usually divided into single branches or groups. Small and medium-sized through-hole threads can be tapped with a single tap. When processing blind holes or large-size screw holes, a group of taps is often used, that is, two or more taps are used to complete the processing of a screw hole in turn. Group taps have two designs, equal diameter and unequal diameter. For taps of equal diameter design, only the cutting cone length is different for each br...

AI Technical Summary

Problems solved by technology

[0004] When using a tap, the phenomenon of tap deviation is a very common problem. This is due to the poor guidance of the tap when tapping, which makes the concentricity of the processed internal thread not meet the requirements. At the same time, the tap will also be enlarged. Torque, shorten the life of the tap

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