公开(公告)号：WO1989008526A1

公开(公告)日：1989-09-21

申请号：PCT/JP1989000281

申请日：1989-03-15

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

Inventor： FANUC LTD

IPC: B23H07/10

CPC classification number: B23H7/10

Abstract: A wire electrode guide apparatus for a wire cut electric discharge machine is provided which can always accurately support a wire electrode on a predetermined feed route during the electric discharge machining to thereby improving machining accuracy. The wire electrode guide apparatus (1) is provided with a change-over valve (80) for feeding or cutting off pressurized air to a pneumatic actuator (70) for driving a movable block (40) which three-point-supports the wire electrode (3) between the same and a fixing block. During the automatic wire-connecting, a pressurized air feed port (88) and a change-over port (87) at the change-over valve communicate with each other to feed pressurized air to the actuator so that a piston rod (73) leaves the movable block (40) to release an urging force applied thereto and the wire electrode is made insertable between the fixing block and the movable block. During the electric discharge machining, the change-over port is cut off from the pressurized air feed port and the pressurized air feed to the actuator is cut off, so that the actuator urges the movable block for supporting the wire. A high pressure machining liquid ejected from a nozzle (51) to enter the actuator through gaps between the respective units is discharged to the exterior through a pressure relief port (89), thereby preventing the urging force of actuator to be applied to the movable block from decreasing, thus accurately supporting the wire electrode on the predetermined feed route.

公开(公告)号：WO1987007193A1

公开(公告)日：1987-12-03

申请号：PCT/JP1987000338

申请日：1987-05-27

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

Inventor： FANUC LTD

IPC: B23H07/00

CPC classification number: B23H11/003

Abstract: A wire cut electric discharge machine (10) provided with a workpiece support bed formed by a horizontally movable table (20) disposed on a metallic machine bed (14) and a work bed (22) fixed onto said table (20). The table (20) and the work bed (22) are made of electrically conductive ceramics for use as an electrically conductive work support bed kept at a direct ground potential with respect to the metallic machine bed (14).

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：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：WO1989004739A1

公开(公告)日：1989-06-01

申请号：PCT/JP1988001184

申请日：1988-11-24

Applicant: FANUC LTD ,  GAMO, Gotaro ,  ISHIBASHI, Tamotsu

Inventor： FANUC LTD

IPC: B23H07/10

CPC classification number: B23H7/102

Abstract: This invention provides an automatic wire connecting method in a wire cut electric discharge machine by which a wire electrode can be inserted into a machining start hole having an extremely small diameter with a simple structure. An upper wire support part (17) is moved together with a wire, until the tip of the cut wire (1) goes into a machining start hole (7, 7'), towards a workpiece (6) aligned with the wire support portion (17) disposed on the wire supply side of a wire feeding system. Then, while the wire tip is kept inside the hole, the upper wire support portion is moved away from the workpiece and then the wire is transported to a wire take-out side of the wire feeding system to complete connection.

公开(公告)号：WO1990002020A1

公开(公告)日：1990-03-08

申请号：PCT/JP1989000786

申请日：1989-07-31

Applicant: FANUC LTD ,  GAMO, Gotaro ,  KARUBE, Norio

Inventor： FANUC LTD

IPC: B23P23/04

CPC classification number: B23K26/0093 ,  B23H5/00 ,  B23H7/02 ,  B23K26/0853 ,  B23P23/00

Abstract: The wire-cut electrical discharge machining apparatus is provided with a wire-cut electrical discharge machining function and a laser machining function. The laser machining is used to effect coarse machining at high speeds. The finishing is effected by the wire-cut electrical discharge machining maintaining high precision. The wire-cut electrical discharge machining apparatus is equipped with a laser oscillator (9) for laser machining, and a column (8) is equipped with laser beam irradiation means (10) which adjoins an upper wire electrode guide (4) and is opposed to a work (3) that is to be irradiated with a laser beam (12). The wire-cut electrical discharge machining apparatus is further provided with a numerical controller which alternatingly switches the wire-cut discharge machining operation and the laser machining operation and moves relative positions of the wire electrode (6) and the work (3) as well as relative positions of the laser beam irradiation means (10) and the work (3) along predetermined loci.

公开(公告)号：WO1987004379A1

公开(公告)日：1987-07-30

申请号：PCT/JP1987000050

申请日：1987-01-26

Applicant: FANUC LTD ,  GAMO, Gotaro ,  OBARA, Haruki ,  KINOSHITA, Hiroshi

Inventor： FANUC LTD

IPC: B23H07/10

CPC classification number: B23H7/10

Abstract: A wire-cut electric spark machine equipped with a current device which has a current contactor (10) to supply electric power to a wire electrode (P). The current device is provided with a pushing means (13) which pushes the wire electrode onto the current contactor at all times, in order to prevent the electrode from being damaged by the electric discharge that takes place when the electrode separates away from the current contactor during the cutting operation by the wire electrode.

Abstract translation: 一种配有电流装置的线切割电火花机，该电流装置具有向线电极（P）提供电力的电流接触器（10）。 当前装置设置有推动装置（13），其一直将线电极推动到电流接触器上，以便防止电极被电极从电流接触器分离时发生的放电而损坏 在线电极的切割操作期间。

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。