ELECTRIC DISCHARGE MACHINE

• Main Authors: KIMURA TAKAMITSU, KURODA HIROMITSU
• Format: Patent
• Language: English; Japanese
• Published: 08.02.2022
• Subjects: MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL; TRANSPORTING; WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL

To provide an electric discharge machine which does not need a large amount of labor for maintenance work of a power feeding element and achieves reduction of running costs.SOLUTION: An electric discharge machine 1 causes electric discharge between an electrode wire 10 and a workpiece 12 while moving the electrode wire 10 to process the workpiece 12. The electrical discharge machine 1 includes a power feeding element 2 which contacts with the moving electrode wire 10 and supplies electric power for causing electric discharge between the electrode wire 10 and the workpiece 12 to the electrode wire 10. The power feeding element 2 is provided so as to be rotatable around a rotation axis O perpendicular to a moving direction of the electrode wire 10, and the electric discharge machine 1 includes a polishing member 3 which polishes a contact surface of the power feeding element 2 with the electrode wire 10 in conjunction with rotation of the power feeding element 2.SELECTED DRAWING: Figure 2 【課題】給電子のメンテナンス作業に手間がかからず、かつランニングコストを低減できる放電加工機を提供する。【解決手段】電極線１０を走線させつつ、電極線１０と被加工物１２との間で放電を発生させて、被加工物１２を加工する放電加工機１であって、走線している電極線１０に接触し、電極線１０と被加工物１２との間に放電を発生させるための電力を電極線１０へ供給する給電子２を備え、給電子２は、電極線１０の走線方向に対して垂直な回転軸Ｏを中心として回転可能に設けられており、給電子２の回転に伴い、給電子２の電極線１０との接触面を研磨する研磨部材３を備えた。【選択図】図２