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Wire electrical discharge machining device and method

A technology of wire discharge machining and wire electrode, which is applied in the direction of electric processing equipment, metal processing equipment, circuits, etc., to achieve the effect of releasing short circuit

Active Publication Date: 2016-04-13
SODICK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the wire electrode 2 is moved relative to the workpiece 3 in the XY plane to release the short circuit, the wire electrode 2 still contacts the other of the upper surface or the bottom surface of the workpiece 3 as shown in FIG. 9( b ).

Method used

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  • Wire electrical discharge machining device and method
  • Wire electrical discharge machining device and method

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Embodiment Construction

[0092] The wire electrical discharge machining apparatus of the present invention includes a short-circuit releasing system that reduces the tension of the wire electrode 2 and vibrates the wire electrode 2 to release the short circuit. figure 1 , represents the wire electric discharge machining device of the present invention. The supply mechanism 5 continuously supplies new wire electrodes 2 to the workpiece 3 . The supply mechanism 5 includes a reel 52 , a servo pulley 53 , a wire breakage detector 54 , a feed roller 10 , and a tension detector 55 . A wire bobbin 51 is mounted on a reel 52 . The reel 52 has a brake motor (brake motor) that applies reverse tension to the wire electrode 2 . The servo pulley 53 prevents fluctuations in tension. The wire breakage detector 54 is provided to detect breakage of the wire electrode 2 and is, for example, a limit switch.

[0093] The feed roller 10 includes a drive roller 12 and a pinch roller 13 . The drive roller 12 is rotated...

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Abstract

The present invention provides a wire electric discharge machining device and method capable of reliably releasing a short circuit between a wire electrode and a workpiece. The invention of the present application relates to a wire electric discharge machining device, which generates electric discharge in the machining gap formed between the wire electrode (2) and the workpiece to start the machining of the workpiece, and the wire electrode (2) is inserted through the start hole (3) in the workpiece (3). 4), the wire electric discharge machining device of the invention of the present application includes: a tension control device (56), which controls the tension of the wire electrode to maintain the tension at a set value; a short circuit detector (57), which detects a short circuit between the wire electrode and the workpiece ; and a short-circuit release system that, when a short-circuit is detected by the short-circuit detector, reduces the tension of the wire electrode and vibrates the wire electrode to release the short-circuit.

Description

technical field [0001] The present invention relates to a wire electric discharge machining device and method for generating electrical discharge in a machining gap formed between a wire electrode and a work to process the work. In particular, the present invention relates to a wire electric discharge machining device and method for releasing an accidental short circuit when an accidental short circuit between a wire electrode and a workpiece is detected. Background technique [0002] Generally, in a wire electric discharge machining device, a wire electrode moves in a horizontal plane ("XY plane") relative to a workpiece. Before processing, the wire electrode must be supported perpendicular to the XY plane between a pair of wire guides. A starting hole for passing the wire electrode is formed in the workpiece as necessary. There are also cases where the size of the start hole is limited to be small, so that the gap between the wire electrode and the start hole (hereinafte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23H7/10B23H7/02
CPCB23H7/02B23H7/10B23H7/16B23H7/26B23H1/024B23H7/104
Inventor 山崎清幸松井竜生
Owner SODICK CO LTD
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