Dual-purpose main shaft in Electric Discharge Machining machine tool

Abstract

The invention discloses a dual-purpose main shaft in an Electric Discharge Machining machine tool. The dual-purpose main shaft is characterized by comprising a main shaft system and a linear motor system, wherein the main shaft system is arranged on a stand column of the Electric Discharge Machining machine tool and involves a Z-axis servo motor, a ball screw, a Z-axis sliding seat and an R shaft,the linear motor system involves a linear motor and an electrode wire clamping mechanism, an electric motor is connected with the electrode wire clamping mechanism, a motor stator is fixed on a mounting plate, and the mounting plate is fixedly mounted on the Z-axis sliding seat. According to the dual-purpose main shaft in the Electric Discharge Machining machine tool, under the condition that a common Electric Discharge Machining main machine structure is not changed, the linear motor is combined to the servo motor drive, and the transformation cost is small, the machining requirements of a large-depth-diameter-ratio micro-hole, a narrow slit and a narrow groove can be met, the large-weight and large-area electrode machining task requirements can be met.

Description

technical field [0001] The invention belongs to the field of electric machining technology, relates to an electric discharge machine tool, and in particular provides a dual-purpose spindle in the electric discharge machine tool. Background technique [0002] With the development of high-tech industries such as aerospace and automotive energy, the requirements for EDM technology are getting higher and higher. The spindle part of the EDM machine tool is one of its key components, and its power consumption accounts for about 60%-80% of the total power of the machine tool. The performance of the spindle part directly affects the processing efficiency, processing quality, and processing accuracy of the machine tool. In EDM, although there are cases of using horizontal servo machining or linkage interpolation to process complex profiles, most of the cases are Z-axis servo feed, horizontal X, Y-axis positioning, and translation. Therefore, the performance of the spindle can be use...

AI Technical Summary

Problems solved by technology

At the same time, most of the EDM spindles in my country are driven by the "rotary motor + ball screw" mechanism. This mechanism involves many intermediate parts and has a relatively large motion inertia. , There are certain limitations in the demand for ultra-precision EDM

[0004] With the increasing demand for high-quality and high-precision machining, the bottleneck of using only servo drives is becoming more and more obvious. If the traditional spindle structure of "rotary motor + ball screw" structure is removed, it will be replaced with a newer linear motor. The driving method requires redesign and optimization of the whole machine structure of the machine tool, which requires high cost, heavy tasks, and long time period

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