Rotary arc milling device, milling machine tool and control system thereof

Abstract

The invention discloses a rotary arc milling device, a milling machine tool and a control system for the milling machine tool, wherein the rotary arc milling device includes a main shaft rotation unit, a power supply unit, a flushing unit and a magnetic field unit, and the main shaft rotation unit includes an insulating shaft , conductive shaft, tool electrode and hollow shaft motor; the insulating shaft is provided with a first axial channel, the conductive shaft is provided with a second axial channel, and the tool electrode is provided with a third axial channel, and the insulating shaft, conductive shaft and tool electrode are automatically The top and bottom are sequentially connected and fixed, the hollow shaft motor is fixed on the outer peripheral surface of the insulating shaft; the positive pole of the power supply unit is electrically connected to the conductive shaft, and the negative pole of the power supply unit is electrically connected to the workpiece; the flushing unit is connected to the first axial channel The upper end is connected; the magnetic field unit is sleeved on the tool electrode. The rotary electric arc milling processing device of the present invention can form a stable high-speed rotary electric arc, continuously remove materials, has wide application range, high processing precision and high processing efficiency.

Description

technical field [0001] The invention relates to the technical field of rotary arc milling, in particular to a rotary arc milling device, a milling machine tool and a control system thereof. Background technique [0002] EDM refers to a special processing technology for processing workpieces through the electric erosion effect of pulse discharge between tool electrodes and workpiece electrodes in a certain medium. Since EDM is processed by electricity and heat, it is not limited by the strength and hardness of the material, and is widely used in the processing of various molds, difficult-to-machine materials, complex shapes, and some special parts. However, there is a problem of low processing efficiency in the application process of EDM at present, especially the development of high-speed milling in recent years, which makes the problem of low EDM efficiency more prominent. In traditional EDM, a complete discharge cycle consists of the following four parts: discharge breakd...

AI Technical Summary

Problems solved by technology

However, the generation of this moving arc is limited by the radius of the tool electrode, so it cannot be applied to a tool electrode with a small radius, and it is only suitable for a cylindrical tool electrode, and the chip removal effect of the moving arc is not good, and the surface quality of the workpiece is poor. severe surface defects

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