Thread hard turning tool

Abstract

The invention relates to a thread hard turning tool. The tool comprises a blade, a cutter handle, a spring gasket and a fastening bolt; the cutter handle is connected with a lathe cutter mounting frame, and the blade is fixed with the cutter handle through the fastening bolt; the spring gasket is arranged on the fastening bolt to prevent the threaded connection from loosening in a sleeving mode; and when internal threads are machined, the cutter handle is of a linear structure, and when external threads are machined, the cutter handle is of an L-shaped structure. The V-shaped guiding and positioning principle is ingeniously utilized, installation guiding and deflection fixing of the blade are achieved, and accurate positioning and repeated clamping accuracy of the blade can be guaranteed. According to a detachable hard turning tool structure, a blade installation connector is universal, the cutter handle is replaced, a blade of a new structure does not need to be adopted, the detachable hard turning tool structure can be conveniently used for internal and external thread turning, and the problems that at the present stage, internal and external hard turning tool connectors are not unified, and different types of blades and tool handles need to be arranged during internal and external thread machining are solved.

Description

technical field [0001] The invention relates to a thread hard turning tool, which belongs to the technical field of mechanical manufacturing. Background technique [0002] Thread turning is a traditional thread processing method, which is often used for processing tight internal and external thread features with a hardness lower than 45HRC and an accuracy not higher than grade 6. With the advent of ultra-precision hard turning machine tools, this thread hard turning technology has also been popularized in the precision machining of transmission threads, and there is a tendency to use turning instead of grinding. [0003] During thread turning, the working angle of the thread insert is directly related to the tooth profile angle and contour accuracy of the turning thread. Therefore, traditionally, welded integral tools are commonly used, that is, the insert is directly welded on the handle, and the blade angle is adjusted by reference positioning of the handle. Grinding and ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem of the present invention is: to overcome the deficiencies of the prior art, a threaded hard turning tool is provided, the blade installation interface is common, and by changing the handle, No need to use a new structure of inserts, it can be conveniently used for internal and external thread turning, which solves the problem that the interfaces of internal and external hard turning tools are not uniform at this stage, and different types of inserts and tool holders are required for internal and external thread processing.

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