公开(公告)号：WO1987001064A1

公开(公告)日：1987-02-26

申请号：PCT/JP1986000414

申请日：1986-08-13

Applicant: FANUC LTD ,  ASO, Toshiyuki ,  ISHIBASHI, Tamotsu

Inventor： FANUC LTD

IPC: B23H07/10

CPC classification number: B23H7/10

Abstract: A mechanism for feeding wire in a wire cut electric discharge machine, in which a wire electrode (P) cut during the discharge machining is rewound on a reel (1) for supplying wire electrode so that said electrode can be easily connected. This mechanism has a clutch (3) of which an output shaft (5) is coupled to the reel for supplying the wire electrode and the coupling torque between the input and output members (3a, 3b) changes depending upon the supplied voltage, and has a geared motor (M) coupled to an input shaft (6) of the clutch. When the wire electrode is cut, the supplying reel is coupled to the geared motor at rest via the clutch that is served with a high voltage to firmly couple the input and output members together. Therefore, the reel is not allowed to make idle running. The supplying reel is then driven by a predetermined torque at a slow speed by the geared motor via the clutch which is served with a decreased voltage and which is loosely coupling the input and output members, whereby the wire electrode is rewound.

公开(公告)号：WO1985003895A1

公开(公告)日：1985-09-12

申请号：PCT/JP1985000104

申请日：1985-03-02

Applicant: FANUC LTD ,  OBARA, Haruki ,  ASO, Toshiyuki ,  KINOSHITA, Hiroshi

Inventor： FANUC LTD

IPC: B23H07/02

CPC classification number: B23H7/10

Abstract: In an electrospark machining apparatus using a wire electrode (22), at least a lower wire electrode guide unit out of upper and lower wire electrode guide units (38, 20) which have machining liquid supply nozzles is provided with an outer cylindrical structure (60), which has a machining liquid ejection tube (62) fitted around a wire electrode guide unit body (44), and which is movable between two positions, i.e. a machining position, in which the outer cylindrical structure (60) engages a positioning groove (54) in the outer circumferential surface of the wire electrode guide unit body (44) to approach a workpiece W, and a wire electrode-repairing position, in which the outer cylindrical structure (60) disengages from the positioning groove (54) to move away from the workpiece W.

Abstract translation: 在使用线电极（22）的电火花加工装置中，在具有加工液供给喷嘴的上下线电极引导单元（38,20）中的至少一个下线电极引导单元设置有外圆柱形结构（60 ），其具有装配在线电极引导单元主体（44）周围的加工液体喷射管（62），并且可在两个位置（即，加工位置）之间移动，其中外圆柱形结构（60）与定位槽 在线电极引导单元主体（44）的外周面中的电极（54）接触工件W，以及线电极修复位置，其中外圆柱形结构（60）从定位槽（54）脱离到 远离工件W.

公开(公告)号：WO1991010529A1

公开(公告)日：1991-07-25

申请号：PCT/JP1991000059

申请日：1991-01-19

Applicant: FANUC LTD ,  ASO, Toshiyuki ,  YODA, Sinji

Inventor： FANUC LTD

IPC: B23H07/02

CPC classification number: B23H7/02 ,  B23H11/00 ,  Y10T83/222

Abstract: This invention relates to a core removing device for removing, either upward or downward in accordance with the shape of the core, a core cut off from a work by wire cut electric discharge machining and the device includes a core removing unit (6) fitted to an electric discharge machine main body. When a first operation mode is selected in accordance with a code read out from a program after taper machining of a core (20) having an inverted trapezoidal section, the core is brought into close contact with a core suction portion (16) fixed to the piston (15) of the vertical cylinder of the core removing unit by the movement of the piston in a vertical direction and its rotation and the suction portion sucking and holding the core is moved up to pull up the core off the work (19). The core is then moved outside a core fall inhibition range by the horizontal movement of the piston (13) of a horizontal cylinder and is released from the core suction portion. When a second operation mode is selected in accordance with another code associated with the core (20) having a trapezoidal section, the core is held by the suction portion inside the work and under such a state, it is moved to a safe position where it does not hit a lower nozzle (8) or a lower work supporting it even when the core is dropped. Thereafter, the core is released from the suction portion and is permitted to fall by gravity. The core thus dropped is conveyed outside the inhibition range by a belt conveyor or a conveyor arm.

公开(公告)号：WO1989010229A1

公开(公告)日：1989-11-02

申请号：PCT/JP1989000392

申请日：1989-04-11

Applicant: FANUC LTD ,  ASO, Toshiyuki ,  HOSODA, Hiroshi

Inventor： FANUC LTD

IPC: B23H07/10

CPC classification number: B23H7/10

Abstract: This invention provides a wire recovery method and apparatus therefore which can store orderly used wires, has a large wire storage capacity and can therefore provide an unmanned operation of a wire cut electric discharge machine for a long period. A wire feed speed instructed by a machining program is divided by a target wire winding radius set in advance to calculate a target drum angular speed providing a wire winding speed which is in conformity with a wire feed speed at this target radius (S4), and a wire storage drum is rotated at the target drum angular speed by a speed controller responsive to an instruction representing this calculated value through a motor (S7). As a result, the used wire is recovered into a drum while being laminated on a circular orbit inside the drum having an equal radius to a target radius.

公开(公告)号：WO1987001636A1

公开(公告)日：1987-03-26

申请号：PCT/JP1986000476

申请日：1986-09-12

Applicant: FANUC LTD ,  ASO, Toshiyuki ,  KINOSHITA, Hiroshi

Inventor： FANUC LTD

IPC: B23H07/04

CPC classification number: B23H7/10 ,  B23H7/04

Abstract: When the wire electrode (W) of a wire cut electric spark machine is broken during tapering by electric spark machining, the wire electrode (W) is smoothly pulled up without being caught in the groove while the work (P) is being processed, by a method wherein the upper wire guide (12) is positioned in the processing condition, a predetermined voltage is applied across the work (P) and the upper wire electrode (W), and the wire electrode (W) only is pulled up, so that the broken end is pulled up out of the work (P). When the work (P) and the wire electrode (W) is no more under the short-circuited condition, the upper wire guide is raised so that the broken end of the wire is detected by a wire detecting means.

Abstract translation: 当通过电火花加工在线切割电火花机的线电极（W）断裂时，线工电极（W）在加工工件（P）时被平滑地向上拉起而不被卡在沟槽中，通过 一种方法，其中上线引导件（12）位于处理状态，在工件（P）和上线电极（W）之间施加预定电压，并且线电极（W）仅被拉起，因此 破碎的一端被拉出工作（P）。 当工件（P）和线电极（W）不再处于短路状态时，上线引导件升高，使得线的断裂端通过线检测装置检测。

公开(公告)号：WO1987001063A1

公开(公告)日：1987-02-26

申请号：PCT/JP1986000433

申请日：1986-08-21

Applicant: FANUC LTD ,  OBARA, Haruki ,  ASO, Toshiyuki ,  KINOSHITA, Hiroshi ,  ISHIBASHI, Tamotsu

Inventor： FANUC LTD

IPC: B23H07/02

CPC classification number: B23H7/102

Abstract: A device for automatic connection of the wire electrode in a wire cut spark machine, which is capable of conducting automatic connection of the wire electrode smoothly and reliably. A wire processing unit (90) integrally and rotatably coupled to a rotary shaft (61) of a pneumatic pressure motor (60) has a nozzle-forming unit (120) which, when it is opened, forms a slit (S) that permits a wire electrode (W) to pass through and which, when it is closed, forms a nozzle hole (125) that can fit to an upper wire guide (12). The wire processing unit (90) is selectively located by means of a stopper (150) at either a wire inserting position or a wire retreat position. In case the wire electrode is broken, the wire processing unit is driven by a motor from the retreat position to the wire inserting position. Then, the nozzle-forming unit is closed, so that the wire electrode introduced through the slit when the wire processing unit is driven is held in the nozzle hole. Thereafter, as a working liquid is supplied from the upper wire guide to the nozzle hole, the wire electrode is fed and automatically connected, being confined by the working liquid injected onto the work (P).

公开(公告)号：WO1987000103A1

公开(公告)日：1987-01-15

申请号：PCT/JP1986000344

申请日：1986-07-04

Applicant: FANUC LTD ,  OBARA, Haruki ,  ASO, Toshiyuki ,  KINOSHITA, Hiroshi

Inventor： FANUC LTD

IPC: B23H07/10

CPC classification number: B23H7/10

Abstract: A wire cut electric spark machine, in which a wire electrode (14) is sent from its supply unit (12) to a region for discharge machining of a workpiece (W), tensed between upper and lower heads (22, 26) and transferred to machine the workpiece (W) by discharge on a work table (24). When the breakage of the wire electrode is detected by a suitable detector during the discharge machining of the workpiece (W), the wire electrode is taken back and held in a position near the upper head (22) by a wire electrode feed means (40), and the broken end of the wire electrode (14) is detected by a wire end detector (66) outside the discharge machining region. The detected broken end of the wire electrode is repaired by using a cutter (60) and a blade receiving base (64) in a wire electrode repairing position which is provided apart from the discharge machining region, to remove the broken end. The repaired wire electrode (14) is set again between the upper and lower heads (22, 26) by using a jet nozzle (74) to resume the discharge machining of the workpiece.

Abstract translation: 在线切割加工机中，通过电腐蚀将线电极（14）从其供电单元（12）转移到工件（W）的加工区域，张紧 在上和下头部（22,26）之间移动，并且通过电蚀到工作台（24）而被转移以加工工件（W）。 当在工件（W）的EDM加工期间由合适的检测器检测到电极断线时，线电极被带回并保持靠近上头部（22）。 通过用于馈送线电极的装置（40），并且线电极（14）的断裂端由位于线区外部的线末端检测器（66）检测。 电火花加工。 使用铣刀（60）和刀片接收基座（64）在线电极末端的线电极修复位置处修复所检测到的线电极的断端。 距EDM加工区域的距离，以消除断端。 通过喷嘴（74）在上下喷头（22,26）之间更换修复后的线电极（14），以重新开始工件的EDM加工。

公开(公告)号：WO1985001902A1

公开(公告)日：1985-05-09

申请号：PCT/JP1984000514

申请日：1984-10-26

Applicant: FANUC LTD ,  ASO, Toshiyuki ,  OBARA, Haruki

Inventor： FANUC LTD

IPC: B23H07/36

CPC classification number: B23H7/101

Abstract: A working fluid supplying apparatus for an electric discharge machine is capable of controlling the fluid pressure of a working fluid in accordance with electric discharge machining conditions and reduces the loss of energy consumed in a working fluid supply pump. Pumps (P1 to P3) are connected in series on a pipeline (9) for supplying a working fluid from a working fluid tank (1) to a machining area. The pipeline portions between the adjacent pumps are connected to the tank (1) through respective valves (V1, V2). When the pumps (P1 to P3) on the upstream side are in an operative state, the valves (V1, V2) on the downstream side are closed. The pumps (P1 to P3) are selectively operated in accordance with a required working fluid pressure.

公开(公告)号：WO1985001000A1

公开(公告)日：1985-03-14

申请号：PCT/JP1984000417

申请日：1984-08-30

Applicant: FANUC LTD ,  ASO, Toshiyuki ,  ARAKAWA, Yasuo

Inventor： FANUC LTD

IPC: B23P01/08

CPC classification number: B23H7/10

Abstract: A wire electrode clamping mechanism in an apparatus for drawing a wire out of a wire-cut electric discharge machine includes: a wire guide pipe (113) which guides a wire electrode (2); a pipe holder (112) which vertically movably receives the upper portion of the wire guide pipe (113); and a clamping member (111) which is disposed on the upper side of the pipe holder (112) and which is actuated such as to unclamp the wire electrode (2) by the wire guide pipe (113) and an actuating member (12) at the lower and upper limits, respectively, of the vertical movement of the clamping member (111). The clamping member (111) clamps the wire electrode (2) being received through the wire guide pipe so as to pull up the wire electrode (2).

公开(公告)号：WO1992017308A1

公开(公告)日：1992-10-15

申请号：PCT/JP1992000385

申请日：1992-03-27

Applicant: FANUC LTD ,  ASO, Toshiyuki ,  KITA, Yuki

Inventor： FANUC LTD

IPC: B23H07/02

CPC classification number: B23H7/105

Abstract: A top guide assembly (7) in a wirecut electric discharge machining device provided thereon with an automatic wiring mechanism and having a construction by which a wire (1) can be held without direct mechanical contact. A hold jet nozzle (37) is connected to the top portion of a main body (23) and a top guide (24) is connected to the bottom portion of the main body (23). The main body (23) is provided with an electrode roller (12) for supplying power to the wire (1) and an electrode pinch roller (13) attachable to and releasable from the electrode roller (12). The hold jet nozzle (37) has a through-hole (40), the center axis of which coincides with a wire route a extending vertically and set in the top guide assembly (7), and a high pressure working fluid supplying path (41) communicating with the through-hole (40). The top guide (24) is provided therein with a dice guide (35) and a top nozzle (34). The guide axis of the dice guide and the center axis of the top nozzle coincide with the wire route a. During operation of the wirecut electric discharge machining device, high pressure working fluid is supplied to the aforesaid supplying path (41) and a powerful water column is formed in the top guide assembly (7), whereby the wire (1) is guided by the water column through the top guide assembly (7) without contacting inner members.