WIRE ELECTRODE SUPPLY DEVICE AND WIRE ELECTRODE SUPPLY METHOD

• Main Authors: ITO YOSHIHIRO, MITSUYASU TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 28.07.2016
• 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

PROBLEM TO BE SOLVED: To provide a wire electrode supply device or the like suitable for improving processing surface roughness by suppressing the traveling vibration of a wire electrode even in the case of wire electrodes of various diameters and materials.SOLUTION: The wire electrode supply device includes a back tension adjustment part for adjusting back tension applied on a wire electrode pulled out from a source bobbin, a tension applying part, and a constant pressure discharge part for holding the wire electrode passed through the tension applying part and an electric discharge processing part and discharging it at a constant speed. The tension applying part includes a low-tension applying part for applying tension to the wire electrode and a high-tension applying part capable of applying tension higher than that of the low-tension applying part. The low-tension part applies tension after the high-tension applying part applies tension, or the low-tension part applies tension without any tension applied from the high-tension applying part.SELECTED DRAWING: Figure 1 【課題】 本発明は、様々な直径や材質のワイヤ電極であっても、ワイヤ電極の走行振動を抑え、加工面粗さを向上させることに適したワイヤ電極供給装置等を提供する。【解決手段】 ワイヤ電極供給装置であって、ソースボビンから引き出されたワイヤ電極にかかるバックテンションを調整するバックテンション調整部と、テンション付加部と、テンション付加部及び放電加工部を通過したワイヤ電極を定圧で挟み定速で排出する定圧排出部を備える。テンション付加部は、ワイヤ電極にテンションを与える低テンション付加部と、低テンション付加部よりも高いテンションを与えることができる高テンション付加部を備え、高テンション付加部がテンションを与えた後に低テンション付加部がテンションを与え、又は、高テンション付加部がテンションを与えずに低テンション付加部がテンションを与える。【選択図】 図１