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Wire electrical discharge machining apparatus

A wire discharge machining and wire electrode technology, applied in the field of online discharge processing devices, can solve the problems of increased wiring performance, fire, and decreased wiring performance, and achieve the effect of compact structure and fire prevention

Active Publication Date: 2015-07-01
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally, in a wire electrical discharge machining device using oil as a machining fluid, the cutting of the wire adopts a mechanical cutting structure with a tool due to the risk of fire. Burrs are generated at the cut-off part, resulting in a decrease in wiring performance
On the other hand, in the case of wire fusing by thermal energy, the tip of the cut wire is very sharp and the connection performance is improved, but there is a risk of fire if sparks are thrown

Method used

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  • Wire electrical discharge machining apparatus

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Embodiment approach

[0020] figure 1 It is a figure which shows the structure of the wire electric discharge machining apparatus which concerns on embodiment of this invention. As shown in the figure, the wire electrical discharge machining device 100 has a bobbin 3, pulleys 4 to 7, a conveyor roller 8, a pinch roller 9, a pinch roller 10, a tension control device 11, a roller 13, a lower wire guide 14, a coil A take-up roller 15, a take-up motor 16 and an automatic wire supply device 300. The wire electrical discharge machining device 100 can process the workpiece 2 by generating electric discharge between the wire 1 and the workpiece 2 . In addition, the wire electrical discharge machining apparatus 100 performs electrical discharge machining in a state where the workpiece 2 is immersed in a machining tank (not shown) filled with a machining liquid.

[0021] The spool 3 supplies the thread 1 . The pulleys 4 to 7 change the traveling direction of the wire 1 so that the wire 1 travels on a pred...

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Abstract

In order to prevent the occurrence of fire during wire cutting in a compact configuration, a wire electrical discharge machining apparatus is provided with: a fusing electrode (32) for fusing a wire (1); and a wire pressing pad (33) arranged in a position opposing the fusing electrode with the wire (1) interposed therebetween, the wire pressing pad (33) sandwiching the wire (1) in concert with the fusing electrode (32) during fusing of the wire (1), and a current flowing through the wire (1) to fuse the wire (1) in a condition in which the fusing electrode (32) and the wire pressing pad (33) are accommodated inside a cover (37).

Description

technical field [0001] The present invention relates to a wire electric discharge machining device with the function of automatically cutting off wire electrodes. Background technique [0002] Among wire electrical discharge machining devices equipped with automatic control devices, there are wire electrical discharge machining devices equipped with functions of automatic wiring of wire electrodes (hereinafter referred to as wires) and functions of automatic repairing of wiring in order to cope with unmanned operation for a long time. The wire automatic wiring function is a function that, when the machining of one figure of the workpiece (hereinafter referred to as workpiece) is completed and the machining of the next figure is being set, the wire electric discharge machining device has According to the instructions of the control device, temporarily cut off the wire in the connection state, and move the wire to the new processing start hole position above the workpiece, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H7/10B23H11/00
CPCB23H7/102
Inventor 喜多秀明
Owner MITSUBISHI ELECTRIC CORP