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：WO1991015324A1

公开(公告)日：1991-10-17

申请号：PCT/JP1991000455

申请日：1991-04-05

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

Inventor： FANUC LTD

IPC: B23H07/02

CPC classification number: B23H7/02

Abstract: A method of removing a cut-away piece, capable of simply and reliably removing the piece cut away from a work through a wire-cut electric discharge machining and a device therefor. Upon completion of the cut-away work of the piece (41), a restraining assembly (63) at the forward end of a piston (62) is disposed in the vicinity of the top surface of the piece under the control of a numerical control machine, thereafter, a working liquid is upwardly sprayed from a lower nozzle (19) toward the bottom surface of the piece, and the piece is held in the work in a state where it is separated from the lower nozzle and not removable upwardly from the work. With the working liquid being sprayed, a work table is moved horizontally, whereby the cut-away piece integrally with the work is separated from the lower nozzle horizontally. The table is stopped in its movement at a position in its moving where a jet stream of the working liquid normally ceases to act on the bottom surface of the piece, the working liquid is sprayed downwardly from an auxiliary nozzle (70) toward the top surface of the piece, so that the piece can forcibly dislodged down from the work.

公开(公告)号：WO1990004478A1

公开(公告)日：1990-05-03

申请号：PCT/JP1989000898

申请日：1989-08-31

Applicant: FANUC LTD ,  ASO, Toshiyuki ,  KAJITORI, Toyotada

Inventor： FANUC LTD

IPC: B23H07/02

CPC classification number: B23H7/101

Abstract: This invention relates to a processing liquid circulation apparatus which can keep constant effective supply quantities of the processing liquid to a work bed while controlling variably the flow rates of the processing liquid supplied to a discharge machining zone, and which is moreover economical. The supply quantities of water have the processing liquid which is jetted to the discharge machining zone and to the work bed (12) through upper and lower nozzles (15, 16) and a spray (35) communicating with conduits (32b ∩ 32e) branched into two routes from a conduit (32a) connected to a tank (31) are regulated by a flow rate regulation valve (34) so that the two route supply quantities are inversely proportional to each other but their sum can be maintained. In rough machining, the jet quantity of water through the nozzle increases while the jet quantity through the spray decreases and at the time of shift from this rough machining to finish machining where the jet quantity through the nozzle decreases but the jet quantity through the spray increases, the effective supply quantity of water to the work bed from both the nozzle and the spray does not change so that any thermal deformation does not occur substantially, hence deformation of the work (40) and eventually, the change of the relative position between the work and a wire electrode (50), are prevented and the discharge machining can be conducted highly accurately.

公开(公告)号：WO1988003454A1

公开(公告)日：1988-05-19

申请号：PCT/JP1987000802

申请日：1987-10-20

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

Inventor： FANUC LTD

IPC: B23H07/10

CPC classification number: B23H7/108

Abstract: In a wire cut electric discharge machine, a wire electrode (24) after completion of the discharge machining is discarded as a used wire (24a). In this case, the spring-up characteristics of the used wire (24a) can be prevented by feeding the used wire (24a) into a wire recovery box (38) while rotating the recovery box (38). Accordingly, the used wire can be recovered efficiently.

Abstract translation: 在线切割放电加工机中，放电加工完成后的线电极（24）作为使用线（24a）被丢弃。 在这种情况下，通过在使回收箱（38）旋转的同时将用过的电线（24a）进给到电线回收箱（38）中，可以防止使用过的电线（24a）的弹起特性。 因此，可以有效地回收使用过的线。

公开(公告)号：WO1988001548A1

公开(公告)日：1988-03-10

申请号：PCT/JP1987000652

申请日：1987-09-02

Applicant: FANUC LTD ,  ASO, Toshiyuki ,  KITA, Yuuki ,  WATANABE, Sadahiro

Inventor： FANUC LTD

IPC: B23H01/10

CPC classification number: B23H1/10 ,  Y10T137/85954

Abstract: A mechanism for supplying processing liquids for carrying out the roughing and finishing steps in a wire cut electric discharge process, consisting of two processing liquid supply passage systems, i.e. a roughing liquid supply system (20) and a finishing liquid supply system (60) which are provided in a processing section (14) of a wire cut electric discharge machine (10), the roughing liquid supply system (20) being provided with a first processing liquid vessel (26) having a processing powder filtration unit (30), and a first water treatment control circulation passage having a specific resistance detector (34), a cooler or a heater (42, 44), an ion exchange unit (52) and pumps (40, 58), the finishing liquid supply system (60) being provided with a second processing liquid vessel (66) having a processing liquid filtration unit (70), and a second water treatment control circulation passage having a specific resistance detector (74), an ion exchange unit (92), a cooler or a heater (42, 44) and pumps (40, 98).

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：WO1987000468A1

公开(公告)日：1987-01-29

申请号：PCT/JP1986000378

申请日：1986-07-18

Applicant: FANUC LTD ,  ASO, Toshiyuki ,  WATANABE, Sadahiro

Inventor： FANUC LTD

IPC: B23H07/10

CPC classification number: B23H9/14 ,  B23H7/10

Abstract: An initial hole machining device (40) for a wire-cut electric discharge machine, which is disposed adjacent to a wire guide (28) to improve the efficiency of machining of the wire-cut electric discharge machine and is intended to prevent the interference relative to the peripheral mechanisms inclusive of the wire guide. The machining device is provided with a frame unit (42) which is movably mounted on a vertically moving unit (24) of vertically feeding mechanisms (12, 14, 16, 18, 20) of the electric discharge machine, an initial hole machining unit (50) which is slidably mounted on the frame unit so as to be movable between a position of machining an initial hole and a position of retreat, and springs (56a, 56b) that urge the machining unit toward the position of retreat. Movement of the initial hole machining unit is controlled by supplying or interrupting compressed air to an air cylinder (48) which drives the machining unit toward the position of machining an initial hole against the force of the springs. Therefore, the initial hole machining device is simple in construction and operation, exhibits excellent durability in an environment where a machining liquid is used, and contributes to energy saving.

Abstract translation: 一种用于线切割放电机的初始孔加工装置（40），其布置成与导线器（28）相邻，以提高线切割放电机的加工效率，并且旨在防止干涉相对 包括线导向器的周边机构。 该加工装置设置有可移动地安装在放电机的垂直进给机构（12,14,16,18,20）的垂直移动单元（24）上的框架单元（42），初始孔加工单元 （50），其可滑动地安装在框架单元上，以便能够在加工初始孔的位置和后退位置之间移动;以及弹簧（56a，56b），其将加工单元推向撤退位置。 通过将压缩空气供给或中断压缩空气（48）来控制初始孔加工单元的移动，气缸（48）驱动加工单元抵抗弹簧的力的加工初始孔的位置。 因此，初始孔加工装置的结构和操作简单，在使用加工液体的环境中表现出优异的耐久性，并且有助于节能。

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：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。