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公开(公告)号：US20200030901A1
公开(公告)日：2020-01-30
申请号：US15735085
申请日：2015-06-12
发明人： Tomohiro NAGASE
摘要： This small-hole electric discharge machining machine for electric discharge machining of a workpiece by use of a rod-like or pipe-like electrode is equipped with: a first support part for supporting the base side of the electrode; a second support part for supporting the tip side of the electrode; and an intermediate guide device that is disposed between the first support part and the second support part, and guides the electrode. The intermediate guide device is equipped with: a guide part that has an open form and a closed form, and guides the electrode when in the closed form; a driving means for causing the guide part to transition between the open form and the closed form; and a biasing means for biasing the guide part in the closing direction when the guide part is in the closed form.
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公开(公告)号：US12115614B2
公开(公告)日：2024-10-15
申请号：US16651735
申请日：2018-09-28
发明人： Tadashi Kasahara , Kazunari Ishii
CPC分类号： B23Q17/249 , B23Q15/14 , B23Q15/22 , B23Q17/22 , B23Q17/24 , B23Q17/2414 , B23Q17/2428 , G05B19/291 , G06T7/0004 , G06T7/75 , G06T2207/30164
摘要： When measuring the position of a workpiece fixed to a table of a machine tool: rotary feed axes of the machine tool are pivoted such that an upper surface of the table faces in the direction of a line of sight of a camera, and an image of the workpiece is captured; the rotary feed axes are pivoted such that a side surface of the table faces in the direction of the line of sight of an image capturing device, and an image of the workpiece is captured; and the position of the workpiece is measured on the machine tool on the basis of the captured images.
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3.发明授权公开(公告)号：US11890691B2
公开(公告)日：2024-02-06
申请号：US17255894
申请日：2019-06-19
发明人： Yasuhiro Okamoto , Haruya Kurihara
摘要： The object of the present invention is to make it possible to maintain a stable electric discharge and to achieve a stable quality and machining performance even when a work having a non-uniform composition is machined. A wire electric discharge machining device performs electric discharge machining on a work while controlling an inter-electrode distance between a wire and the work based on an inter-electrode voltage between the wire and the work so as to match a set target voltage. The wire electric discharge machining device includes an inter-electrode voltage measuring unit that measures the inter-electrode voltage, an actual amplitude calculating unit that calculates an amplitude of the measured inter-electrode voltage, and a target voltage correcting unit that corrects the target voltage in such a way that the calculated amplitude approaches the target amplitude that is set to a value larger than zero.
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公开(公告)号：US11872643B2
公开(公告)日：2024-01-16
申请号：US17606520
申请日：2020-04-24
发明人： Fukuhito Nagata , Ryoichi Miyamoto , Hiroshi Ueno
IPC分类号： B23C5/10
CPC分类号： B23C5/1063 , B23C2210/02 , B23C2210/03 , B23C2240/32 , B23C2250/12
摘要： In a T-shaped tool (10) in which a head (30) having cutting edges (36, 38) and a cylindrical shank (20) are fastened together: the shank comprises a super-hard alloy, and an engaging portion which engages with a tool main body is formed in a distal end portion thereof; the tool main body comprises a steel material, and an engaged portion which engages with the engaging portion of the shank is formed therein; and the engaging portion and the engaged portion are fastened in such a way as to be retained and prevented from rotating.
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公开(公告)号：US20230409825A1
公开(公告)日：2023-12-21
申请号：US18247255
申请日：2021-09-30
IPC分类号： G06F40/197 , G06F40/186 , G06F16/93
CPC分类号： G06F40/197 , G06F40/186 , G06F16/93
摘要： A document creating device (10): creates a common document (100) serving as a template for creating a derived document (300), and a difference document (200) including a region (106) in which an element (206) different from elements (112, 114, 116, 114) in the common document is embedded, and an empty region (108); and generates the derived document (300) from the common document by replacing the elements in the common document with elements in the corresponding region of the difference document.
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公开(公告)号：US11787001B2
公开(公告)日：2023-10-17
申请号：US16982194
申请日：2019-03-20
发明人： Yosuke Yasuda , Takeshi Kawada , Kazumasa Kono
CPC分类号： B23Q5/10 , B23Q1/70 , B23Q11/127 , Y10T409/303976 , Y10T409/309352
摘要： A spindle device of a machine tool is provided with: a rear-side bearing and front-side bearings which rotatably support a spindle with respect to a housing; a built-in motor which is disposed around the spindle between the front-side bearings and the rear-side bearing; heat pipes which are embedded in the spindle and which transmit heat between the central part and the rear-end part of the spindle; a plurality of plate-like inner fins which are affixed to a rear part of the spindle that protrudes rearward of the rear-side bearing and which extend perpendicularly with respect to the rotation axis of the spindle; and a plurality of plate-like outer fins which are affixed to the housing and which are disposed between the plurality of inner fins in such a manner as not to contact the inner fins.
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公开(公告)号：US11780040B2
公开(公告)日：2023-10-10
申请号：US17289853
申请日：2018-10-31
发明人： Yuji Sano , Masatoshi Sakamoto , Toru Nakashima
CPC分类号： B23Q3/15773 , B23Q3/15722 , B23Q3/15746 , B23Q11/005 , B23Q11/0891 , B23Q2003/15532 , Y10T483/115 , Y10T483/176 , Y10T483/1864 , Y10T483/1882
摘要： This machine tool is provided with an arm for exchanging a tool between a main shaft in a machining chamber and a secondary tool standby position in a tool holding chamber, a shutter which is provided in an opening defined in a wall which partitions between the machining chamber and the tool holding chamber, a first motor for opening and closing the shutter, a shutter position detector which can detect the position of the shutter in the entire range between the fully open position and the fully closed position, a storage device which stores a prescribed position of the shutter associated with a prescribed operation of the arm and a control device which is configured to perform a prescribed operation of the arm on the basis of the position of the shutter detected by the shutter position detector and the prescribed position of the shutter stored in the storage device.
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公开(公告)号：US11752565B2
公开(公告)日：2023-09-12
申请号：US17290467
申请日：2018-10-31
发明人： Naoto Yokoyama
IPC分类号： B23H1/02
CPC分类号： B23H1/022 , B23H2300/20
摘要： A power supply device for an electric discharge machine includes a current supply unit for supplying a pulsed current to an electrode gap and a current regeneration unit for regenerating the current. The current supply unit includes a DC power supply, a first switching element, and a second switching element. The current regeneration unit includes a capacitor arranged between a first connection point between an electrode and the first switching element and a second connection point between a workpiece and the second switching element, and a third switching element which is arranged between a third connection point between the first connection point and the DC power supply and a fourth connection point between the second connection point and the capacitor and which is turned on from the start of current regeneration until the current value reaches zero, whereby regeneration current fall time is reduced.
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公开(公告)号：US11556110B2
公开(公告)日：2023-01-17
申请号：US16976931
申请日：2019-02-14
IPC分类号： G05B19/4093 , G06N3/08
摘要： The step for performing machine learning includes acquiring shape data; acquiring geometric information for each of a plurality of machining faces; acquiring a tool path pattern selected for the machining faces from among a plurality of tool path patterns; and performing machine learning by using the geometric data for known workpieces and the tool path patterns wherein the input is the geometric information for the machining faces and the output is the tool path pattern for the machining faces. The step for generating a new tool path includes: acquiring shape data for the workpiece; acquiring geometric information for each of the plurality of machining faces of the workpiece to be machined; and generating a tool path pattern for each of the plurality of machining faces on the workpiece on the basis of the results of the machine learning using the geometric information of the workpiece to be machined.
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公开(公告)号：US20220410291A1
公开(公告)日：2022-12-29
申请号：US17898273
申请日：2022-08-29
发明人： Hiroshi UENO , Ryoichi MIYAMOTO , Fukuhito NAGATA
IPC分类号： B23C5/10
摘要： A milling tool is configured from a shank part and a head with a cutting edge that is provided on the leading end of the shank part. The head comprises an expanding diameter section, the diameter of which expands gradually from the base end that contacts the shank part in the direction of the leading end, and a decreasing diameter section, the diameter of which gradually decreases from the maximum diameter section in the direction of the leading end. At least one cutting edge is provided on each of the expanding diameter section and the decreasing diameter section.
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