Liquid spraying device for medium-speed wire cutting and medium-speed wire cutting machine

Abstract

The invention provides a liquid spraying device for medium-speed wire cutting and a medium-speed wire cutting machine. The liquid spraying device comprises a pair of wire wheels arranged up and down and an electric cutting molybdenum wire erected on the wire wheels, wherein a spraying frame is fixedly arranged between the upper wire wheel and the lower wire wheel, an emulsified liquid area and a deionized water area are arranged in a working liquid box, and working liquid stored in the emulsified liquid area and the deionized water area is alternately supplied into the spraying frame according to the working mode of the electric cutting molybdenum wire. The emulsified liquid collecting area and the deionized water collecting area are alternatively disposed below the wire wheels. According to the liquid spraying device, targeted working liquid can be supplied according to switching of cutting modes, and during finish machining, a narrow discharge gap around the electric cutting molybdenum wire can be guaranteed through supply of deionized water, so that fine cutting is carried out through pulse discharge, heat is output in time through deionized water, molybdenum wires are prevented from being broken, the machining quality is greatly improved, and the service life of the molybdenum wires is prolonged.

Description

technical field [0001] The invention relates to the technical field of medium-feeding wire electric discharge cutting machines, in particular to a medium-feeding wire-cutting liquid spray device and a medium-feeding wire-cutting machine. Background technique [0002] Medium wire cutting is to reduce the error caused by material deformation and molybdenum wire loss through multiple cutting, so that the processing quality is relatively improved. The so-called "medium wire" does not mean that the wire speed is between high speed and low speed, but a composite Wire cutting machine tool, that is, the principle of wire cutting is to use high-speed wire (8-12m / s) for rough machining and low-speed wire (1-3m / s) for finishing, so that the work is relatively stable, the vibration is small, and the The error caused by material deformation and molybdenum wire loss is reduced by multiple cutting, and the processing quality is relatively improved. The processing quality can be between the...

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned filtration system of the cutting fluid of the WEDM machine tool in the EDM still has obvious defects in the use process: the supply of the working fluid of the above-mentioned device is not differentiated according to the conversion of the cutting mode, resulting in chip removal during the cutting process. Poor, working fluid resistivity cannot be guaranteed, etc., which will affect the processing quality of the workpiece

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