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1.发明公开公开(公告)号：US20240207958A1
公开(公告)日：2024-06-27
申请号：US18288384
申请日：2021-05-07
发明人： Hidetaka MIYAKE
摘要： A control unit controls a holding device so that a cutting feed stage is driven when cutting is started to move upward a workpiece fixing plate on which a workpiece is placed and fixed and a pair of machining fluid flow straightening plates relative to a pair of machining fluid escape prevention plates so as to bring the workpiece fixing plate and the pair of machining fluid flow straightening plates closer to a plurality of cutting wire portions, and a workpiece retainer is held in an initial cutting position until the workpiece reaches a first position by the upward movement, and controls the holding device to release the hold of the workpiece retainer after the workpiece reaches the first position.
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公开(公告)号：US20240149362A1
公开(公告)日：2024-05-09
申请号：US18499163
申请日：2023-10-31
申请人： Sodick Co., Ltd.
发明人： Tsuyoshi Takeda , Hiroki Sato , Tsubasa Kuragaya
IPC分类号： B23H7/10
摘要： A guide pipe provided along a movement path of a wire electrode between a direction change pulley and a winding device and guiding the wire electrode has antistatic properties. A gas-liquid mixed fluid is supplied into the guide pipe. A suction nozzle passes between a pair of rollers of the winding device and is directly or indirectly connected to an outlet side of the guide pipe. The suction nozzle suctions the gas-liquid mixed fluid in the guide pipe and a tip of the wire electrode by a suction device and captures the wire electrode. The captured wire electrode is wound by the winding device.
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公开(公告)号：US11826845B2
公开(公告)日：2023-11-28
申请号：US18032816
申请日：2021-04-12
发明人： Atsushi Itokazu
CPC分类号： B23H7/20 , B23H7/10 , B23H7/16 , G05B19/182 , G05B2219/45221
摘要： A multi-wire electric discharge machine includes: a plurality of cutting wire sections arranged in parallel in such a way as to face a workpiece, a wire electrode being wound around guide rollers to form the cutting wire sections; a drive unit that adjusts relative distances between the workpiece and the cutting wire sections; a machining power supply that applies pulse voltages between the workpiece and the cutting wire sections; a machining-state detection device that detects machining states in the cutting wire sections; and a machining control device that controls the drive unit and the machining power supply, in which when values indicating the machining states exceed a threshold value, the machining control device outputs, to the machining power supply, commands to apply the pulse voltages according to a machining condition for avoiding breakage of the wire electrode.
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公开(公告)号：US11458555B2
公开(公告)日：2022-10-04
申请号：US16780487
申请日：2020-02-03
申请人： FANUC CORPORATION
发明人： Shouta Irie
IPC分类号： B23H7/04 , B23H7/10 , G05B19/401
摘要： A wire electrical discharge machine includes an upper wire guide and a lower wire guide supporting a wire electrode, a probe provided on an upper guide block having the upper wire guide, an offset storage unit for storing an offset amount from the upper wire guide to the probe, a position shift drive unit for changing the relative position between the table, and the upper and lower wire guides, a drive controller for controlling the position shift drive unit, a contact position calculator for calculating a contact position that is a position of the probe when it comes in contact, and a machining start position calculator for calculating a machining start position of the wire electrode, based on at least two contact positions and the offset amount. The drive controller controls the position shift drive unit so that the position of the wire electrode becomes the machining start position.
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5.发明授权公开(公告)号：US11370046B2
公开(公告)日：2022-06-28
申请号：US16515647
申请日：2019-07-18
申请人： THERMOCOMPACT
发明人： Michel Ly , Gérald Sanchez
摘要： A device for machining a part by electrical discharge machining using an electrode wire. The device includes equipment for holding the electrode wire taut and driving the wire to translate longitudinally, in proximity to the part to be machined, in a sparking zone. The device further includes equipment for making a stream of dielectric liquid flow through the sparking zone between the electrode wire and the part to be machined. An electrical power source generates electrical pulses that cause sparks in the sparking zone between the electrode wire and the part to be machined. The quantity of gas bubbles present in the sparking zone is measured, and a signal is produced, representative of the quantity of bubbles, the signal being delivered to a controller. The controller modifies machining parameters so as to maintain the value of the signal within a suitable range.
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公开(公告)号：US20220143724A1
公开(公告)日：2022-05-12
申请号：US17432517
申请日：2019-04-05
发明人： Takashi YUZAWA , Yoichi OTOMO , Junichi SHIBATA
摘要： A wire electrical discharge machine to cut a workpiece by generating an electrical discharge in a dielectric working fluid between wire electrodes arranged in parallel and the workpiece includes: a work tank that stores the dielectric working fluid; a Z-axis stage that is disposed in a lower portion of the work tank and moves the workpiece in a Z-axis direction that is a vertical direction; a pillar that extends upward from the Z-axis stage and has an upper end portion located above the highest level of a fluid level of the dielectric working fluid in the work tank; an adjuster that is installed downward from a portion of the pillar located above the highest level of the fluid level, is disposed above the highest level of the fluid level, and adjusts the position or posture of the workpiece in a direction other than the vertical direction.
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公开(公告)号：US20210387275A1
公开(公告)日：2021-12-16
申请号：US17335103
申请日：2021-06-01
申请人： Sodick Co., Ltd.
发明人： Masashi SAKAGUCHI , Akio HOSAKA
摘要： A wire electric discharge machining apparatus is provided. The wire electric discharge machining apparatus includes an upper support that supports an upper guide unit that guides a wire electrode on an upper side. The upper support includes an arm having a lower end provided with the upper guide unit, an axis drive portion moving the arm in at least one axial direction and made of a material that has a larger coefficient of linear expansion than ceramics, and an adjustment block connecting the arm and the axis drive portion and made of ceramics. The adjustment block is fixed at a position where a displacement of the upper guide unit caused by expansion and contraction of the upper support is suppressed by a bimetal effect occurring on a fastening surface of the axis drive portion and the adjustment block.
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公开(公告)号：US20210260677A1
公开(公告)日：2021-08-26
申请号：US17277231
申请日：2019-09-16
申请人： Ki Chul Seong
发明人： Ki Chul Seong
摘要： The present disclosure relates to a waste wire recovery apparatus, which includes: a waste wire recovery unit recovering a waste wire discharged from a wire electric discharge machine while rotating; and a rotational actuator rotating the waste wire recovery unit. Since the waste wire recovery unit rotates when recovering a waste wire, the waste wire can be uniformly received in the waste wire recovery unit. Accordingly, the stack density of the waste wire received in the waste wire recovery unit is improved, so the amount of a waste wire that can be transported at one time on a vehicle, etc. can be increased. Accordingly, the economic efficiency of reusing a waste wire can be improved.
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公开(公告)号：US11033975B2
公开(公告)日：2021-06-15
申请号：US16438752
申请日：2019-06-12
申请人： FANUC CORPORATION
发明人： Hiroyuki Abe , Hiroyuki Furukawa
摘要： A wire electrical discharge machine for performing electrical discharge machining on a workpiece to be machined by applying voltage to an electrode gap formed between a wire electrode and the workpiece to generate electrical discharge at the electrode gap under predetermined machining conditions while conveying the wire electrode along a transfer path, includes: a wire breakage detector for detecting a breakage of the wire electrode; a position calculator for calculating the breakage position of the wire electrode in the transfer path; and an adjustment unit for adjusting the machining conditions when the breakage position is in a predetermined section of the transfer path.
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10.发明申请公开(公告)号：US20200238414A1
公开(公告)日：2020-07-30
申请号：US16749120
申请日：2020-01-22
发明人： Lin Gu , Guojian He
摘要： The present invention discloses a multifunction integrated manufacturing system based on electrical machining, including a robot, a motion control unit, a multifunction composite electrical power supply, a working medium supply and recycle unit, a wire feeding device, a tool holder quick-change clamping unit, an electrical machining tool holder, a welding tool holder, a detection tool holder, and a workbench. By using the robot as an actuator, the system can implement discharge additive manufacturing including arc additive forming and micro electrical discharge deposition forming, discharge subtractive machining including efficient arc machining and precise electrical discharge machining, part joining based on arc surfacing, and online detection based on optical scanning and ultrasonic flaw detection. The present invention has a high integration level, covers machining and manufacturing of difficult-to-machine materials and micro parts, and can implement efficient and precise machining. The present invention can be implemented in a variety of media without environmental restrictions thus having a broad application range and having a strong application prospect in extreme environments such as space and deep sea.
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