Numerical control machine tool capable of quenching and tempering simultaneously at high frequency

Abstract

The invention relates to a numerical control machine tool capable of quenching and tempering simultaneously at a high frequency, which belongs to the technical field of local inductive heat treatment on surfaces of metal parts, and mainly aims to solve the problems to realize that quenching and tempering are simultaneously carried out when workpieces are clamped in one step, multi-stage power andspeed variation can be realized on complex parts, and batch quenching of various small parts can be met through programming. The numerical control machine tool mainly comprises an 8-shaped double-turn double-position quenching induction coil and a tempering induction coil on a vertically moving Z-axis sliding table of the numerical control machine tool, and an eight-station rotary workpiece holder plate indexing rotating mechanism, eight workpieces are clamped in one step, heat treatment is carried out continuously, two processes are completed automatically on one machine tool, the repeated workpiece assembly and disassembly processes are omitted, the labor intensity is reduced, the production of continuous quenching and tempering treatment of workpieces in batches can be realized, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of partial induction heat treatment on the surface of metal parts, and mainly relates to a numerically controlled machine tool capable of simultaneous high-frequency quenching and tempering. Background technique [0002] With the continuous development of my country's automobile manufacturing industry, the manufacturing process requirements of some shaft parts that affect the performance of the whole machine are getting higher and higher, especially for some precision shaft parts that require high wear resistance, the quality of the quenched hardened layer It has a more important impact on the mechanical properties and service life of the parts; some parts require strict control of the gradient of the transition zone, and no hardened layer is allowed to ensure the state of the matrix structure. In order to ensure the quenching quality of such parts and improve the quenching efficiency, a professional quenchin...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a CNC machine tool capable of high-frequency quenching and tempering at the same time, which can meet the needs of surface induction heat treatment of complex shaft workpieces with large diameter differences and annular narrow grooves, and overcome the existing There are general-purpose vertical quenching machine tools, single machine and single piece. For different shaft diameter parts and different surface quenching requirements of complex shaft workpieces, separate quenching heat treatment is carried out step by step, and the heating induction with different opening sizes needs to be replaced repeatedly for shaft diameters of different diameters. Circles, low efficiency, high labor intensity, and defects that are not suitable for quality control

Images