Title:
WIRE ELECTRODE-FEEDING DEVICE AND WIRE ELECTRODE-FEEDING METHOD
Document Type and Number:
WIPO Patent Application WO/2016/117140
Kind Code:
A1
Abstract:
The present invention provides a wire electrode-feeding device, etc. suitable for limiting wire electrode running vibration and improving machined surface roughness even with a variety of wire electrode diameters and materials. A wire electrode-feeding device is provided with a back tension adjustment section for adjusting back tension that is applied on a wire electrode drawn out from a source bobbin, a tension-adding section, and a constant pressure discharging section for clamping the wire electrode, which has passed through the tension-adding section and an electric discharge machining unit, with a constant pressure and discharging same at a constant speed. The tension-adding section is provided with a low tension-adding part for applying tension on the wire electrode and a high tension-adding part capable of applying a higher tension than the low tension-adding part. The low tension-adding part applies tension after the high tension-adding part has applied tension, or the low tension-adding part applies tension without the high tension-adding part applying tension.
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Inventors:
ITO YOSHIHIRO (JP)
MITSUYASU TAKASHI (JP)
MITSUYASU TAKASHI (JP)
Application Number:
PCT/JP2015/062447
Publication Date:
July 28, 2016
Filing Date:
April 23, 2015
Export Citation:
Assignee:
SEIBU ELECTRIC & MACHINERY CO (JP)
International Classes:
B23H7/10
Foreign References:
| JP2002239841A | 2002-08-28 | |||
| JPH07290320A | 1995-11-07 | |||
| JPH04250925A | 1992-09-07 | |||
| US20080053963A1 | 2008-03-06 |
Attorney, Agent or Firm:
HADATE Koji (JP)
Hadachi Koji (JP)
Hadachi Koji (JP)
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