Patents Assigned to Citizen Machinery Miyano Co., Ltd.
-
Publication number: 20150227134Abstract: A portable manipulation command input device, including a sub-console panel attachable to and removable from an automatic lathe apparatus main unit, and includes an input unit to receive input of a manipulation command to the automatic lathe apparatus main unit, a display unit to display information on the automatic lathe apparatus main unit, and a radio communication unit to communicate with the automatic lathe apparatus main unit. The sub-console panel includes a detection unit and a control unit formed with the automatic lathe apparatus main unit. The detection unit includes a radio ID tag and a radio ID reader detecting the sub-console panel being placed within a predetermined range of the automatic lathe apparatus main unit. Depending on a detection result by the detection unit, the control unit allows or restricts manipulations of the automatic lathe apparatus main unit, and allows display of the information even when restricting the manipulations.Type: ApplicationFiled: October 3, 2013Publication date: August 13, 2015Applicants: Citizen Holdings Co., Ltd.,, Mitsubishi Electric Corporation, Citizen Machinery Miyano Co., Ltd.,Inventors: Shigeo Yanagidaira, Takaichi Nakaya, Hitoshi Matsumoto, Kazuhiko Sannomiya, Shoji Oda
-
Publication number: 20150114889Abstract: There is provided a workpiece separation apparatus permitting input of a mixture of workpieces and chips stably within a flow current and separating them accurately and efficiently. The workpiece separation apparatus includes an input cylinder inserted within a separating container, and a fluid supplying means arranged so as to supply fluid to the separating container from a part lower than a lower end of the input cylinder, and configured such that the fluid overflows and flows out of the upper end of the separating container due to a flow current generated within the separating container, and such that the level of the fluid rises up in the input cylinder and the fluid does not flow out of the upper end of the input cylinder, but is maintained substantially in a resting state and at a level above the level of the upper end of the separating container.Type: ApplicationFiled: December 29, 2014Publication date: April 30, 2015Applicants: CITIZEN MACHINERY MIYANO CO., LTD., CITIZEN HOLDINGS CO., LTD.Inventors: Shozen Yanakawa, Hiroshi Kasuya, Kyota Kotake, Satoru Akimoto, Takahiro Mogi, Youji Takeuchi, Umeo Tsuyusaki
-
Publication number: 20150090084Abstract: A main spindle (11) is moved to a region of a rotary guide bush device (30) where the rotary guide bush device (30) has been attached to be disposed in a position of a front (F) along an axis (C) direction when the rotary guide bush device (30) having a guide bush (31) (guide bush), which is supported in a removable manner by a guide bush-supporting base (20) (supporting base) provided in the front (F) along the axis (C) direction of the main spindle (11), is removed, and a seal member (60) fixed to the guide bush-supporting base (20) has contact with an outer circumference surface (12a) of a main spindle cover (12) over an entire circumference, so that processing with or without the guide bush can be selected and a complicated process required for switching the processing with or without the guide bush can be simplified.Type: ApplicationFiled: March 27, 2013Publication date: April 2, 2015Applicants: CITIZEN HOLDINGS CO., LTD., CITIZEN MACHINERY MIYANO CO., LTD.Inventors: Kyota Kotake, Noriyuki Asahara, Hiroshi Kasuya
-
Patent number: 8991590Abstract: A product collection apparatus which provides a product conveyed by a conveyance belt to a rotary table to collect the product includes a conveyance belt to be rotated; a rotary table supported rotatably, linkage unit which links a driving force input unit for conveyance belt which receives driving force to rotate the conveyance belt and a driving force input unit for rotary table which receives driving force to rotate the rotary table, and an actuator which transfers the driving force to the conveyance belt and the rotary table through the linkage unit.Type: GrantFiled: September 27, 2012Date of Patent: March 31, 2015Assignees: Citizen Holdings Co., Ltd., Citizen Machinery Miyano Co., Ltd.Inventors: Takayuki Sato, Kiyoto Shinohara
-
Patent number: 8893362Abstract: A turret tool holder, having structure capable of easily avoiding unnecessary free rotation of a turret, is provided. When a linearly movable shaft is moved toward a turret head section by driving a servomotor, an annular movable coupling element arranged in the turret begins to disengage from an annular fixed coupling element fixed to a support. While the movable coupling member is still engaged with the fixed coupling member, clutch teeth of a clutch member are engaged with other clutch teeth. Therefore, even when the annular movable coupling element is disengaged from the annular fixed coupling element, the turret is prevented from freely rotating by the engaged clutch teeth.Type: GrantFiled: August 6, 2009Date of Patent: November 25, 2014Assignee: Citizen Machinery Miyano Co., Ltd.Inventor: Atsushi Aoyagi
-
Patent number: 8887601Abstract: There is provided a machine tool capable of working a workpiece regardless whether it is gripped by a front spindle or a back spindle while guiding a free end side thereof by one guide bushing (160), is simplify and compacted and suppresses an increase of a number of axes to be controlled. The machine tool comprises the front and back spindles (112) and (122) having one and same axial line and disposed opposite each other and a guide bushing (160) having an axial line identical with the axial line. The guide bushing (160) is disposed between the front and back spindles (112) and (122), is configured so that the guide bushing (160) can guide the workpiece on both ends of the workpiece (W), so that the workpiece gripped either by the front spindle (112) or the back spindle (122) can be inserted, and so that the guide bushing (160) is movable in an axial direction.Type: GrantFiled: February 28, 2011Date of Patent: November 18, 2014Assignees: Citizen Holdings Co., Ltd., Citizen Machinery Miyano Co., Ltd.Inventor: Takaichi Nakaya
-
Patent number: 8875604Abstract: There is provided a machine tool which holds a large number of tools and capable of performing various kinds of works without replacing the tools, which is easy to operate and which allows faster and accurate operations with less number of movable parts. A front tool post (141) and a back spindle (120) are configured to be integrally movable in a Y-axis direction, and a plurality of front working tools (140) and a plurality of back working tools (130) are disposed on the front and back tool posts (141) and (131), respectively, in a plurality of tiers in the Y-axis direction.Type: GrantFiled: February 28, 2011Date of Patent: November 4, 2014Assignees: Citizen Holdings Co., Ltd, Citizen Machinery Miyano Co., Ltd.Inventors: Umeo Tsuyusaki, Satoru Akimoto, Hiroshi Shinohara
-
Publication number: 20140202294Abstract: A machine tool includes a main spindle (10) which holds a workpiece (200, object to be machined) and is rotatable about the shaft center (C1), a main spindle motor (20, main spindle driver) which rotates the main spindle (10), a rotary guide bush (30, eccentric guide hush) which supports the workpiece (200) projecting from a leading end of the main spindle (10) to be rotatable in a state of being eccentric relative to the shaft center (C1) by a length E, a guide bush servomotor (40, guide bush driver) which rotates the rotary guide bush (30) about the shaft center (C1) in synchronization with the main spindle (10), and a controller (50) which controls the rotation and driving of the guide bush servomotor (40), so as to selectively switch between the rotation state and the stop state of the rotation.Type: ApplicationFiled: August 29, 2012Publication date: July 24, 2014Applicants: CITIZEN MACHINERY MIYANO CO., LTD., CITIZEN HOLDINGS CO., LTD.Inventor: Hikaru Takahashi
-
Publication number: 20140156056Abstract: Provided is a machine tool control device which reduces a processing burden of calculating a thermal displacement amount, avoids decrease in processing speed, and increases accuracy of machining a workpiece. A machine tool control device (100) includes a sequential analysis control unit (110), an advance analysis control unit (120), a correction value calculation unit (130), a change amount calculation unit (140), and a mode switching unit (150), and operates a machine tool (M) by executing a machining program that is corrected on the basis of a thermal displacement amount occurring on components constituting the machine tool (M) to enable highly accurate machining of a workpiece (W).Type: ApplicationFiled: July 12, 2012Publication date: June 5, 2014Applicants: CITIZEN MACHINERY MIYANO CO., LTD., CITIZEN HOLDINGS CO., LTD.Inventor: Kyota Kotake
-
Patent number: 8726770Abstract: There is provided a work supplying apparatus for automatically and smoothly supplying workpieces having various shapes and sizes from a rear end of a hollow spindle in a machine tool or assembling machine. The work supplying apparatus has a work pushing means for pushing the workpiece held by a holding means into a chuck, and a pusher for pushing and holding the workpiece supplied to a work receiver in the direction of the holding means.Type: GrantFiled: September 14, 2010Date of Patent: May 20, 2014Assignees: Citizen Holdings Co., Ltd., Citizen Machinery MIyano Co., Ltd.Inventors: Takaichi Nakaya, Shigeo Yanagidaira, Koichi Yabe
-
Publication number: 20140132086Abstract: A drive regulation device for a machine tool that stops driving of a motor when a door (18) provided for a cover (17) for covering a driven body driven by the motor becomes to be in an open state includes a detection unit (21) detecting an open/closed state of the door (18) provided for the cover (17) for covering the driven body driven by the motor, an excitation operation unit (22) switching the motor between an excitation state and a non-excitation state, a speed regulation unit (23) stopping the motor, when the motor that has been stopped is rotated faster than a predetermined allowable rotation speed, and a speed-regulation switch unit (24) controlling the speed regulation unit (23), in a case where the detection unit (21) detects that the door (18) is in the open state, such that the speed regulation unit (23) works when the motor is in the excitation state, and the speed regulation unit (23) does not work when the motor is in the non-excitation state.Type: ApplicationFiled: July 10, 2012Publication date: May 15, 2014Applicants: CITIZEN MACHINERY MIYANO CO., LTD., CITIZEN HOLDINGS CO., LTD.Inventor: Hitoshi Matsumoto
-
Patent number: 8677584Abstract: To provide a coolant supply structure for a turret tool rest in which the central part of the intermediate shaft can be utilized effectively as a space and there is no need to allow this shaft to be hollow when a shaft such as a driving shaft is inserted. In a coolant supply structure for a turret tool rest to supply a coolant to a tool mounting part of a turret 12, which is provided in a turret tool rest 1 having a turret 12 with a tool T being mounted thereon, a hollow rotating shaft 15 for rotating the turret 12 and a hollow intermediate shaft 19 arranged within the rotating shaft 15, wherein the coolant supply structure has a cylindrical member 23 inserted into the intermediate shaft 19, and a space served as a passage 24 of the coolant is formed between the cylindrical member 23 and the intermediate shaft 19.Type: GrantFiled: February 17, 2010Date of Patent: March 25, 2014Assignee: Citizen Machinery Miyano Co., Ltd.Inventor: Atsushi Aoyagi
-
Publication number: 20140015182Abstract: To prevent entrance of swarf or cutting oil from a workpiece recovery opening, in a workpiece recovery unit, a cover 21 which covers an upper side and a lateral side of a workpiece recovery opening 19 opening in an upper side of a workpiece recovery section 18 disposed lateral to a holder 13 which holds a processed workpiece 1?, a workpiece transport path 23 from an entrance 22 opening in a lower side provided in the cover 21 to the recovery opening 19 is formed in a step-like shape, the holder 13 is supported so as to be movable in an up-and-down direction and a right-and-left direction, the workpiece 1? is moved along the transport path 23 by the holder 13, and is transported to the upper side of the recovery opening 19 from the entrance 22 so as to be recovered in the recovery opening 19.Type: ApplicationFiled: February 22, 2012Publication date: January 16, 2014Applicants: CITIZEN MACHINERY MIYANO CO., LTD., CITIZEN HOLDINGS CO., LTD.Inventors: Noriyuki Asahara, Hiroshi Kasuya, Kyota Kotake, Yoshiki Sugimoto
-
Publication number: 20130331956Abstract: Provided is a machine tool control device which does not require an operator to enter the execution order of machining programs before testing a machine tool, enabling easy debugging of the machining programs. A machine tool control device (100) sequentially executes a plurality of machining programs (S1, S2) in a unit of machining program block (S1-1, S1-2, S2-1, S2-2) to a wait command (da1-1, da1-2, da2-1, da2-2) in ascending order of the system number (1, 2) of the machining programs (S1, S2) without executing machining program blocks (S1-1, S1-2, S2-1, S2-2) in parallel between the machining programs (S1, S2).Type: ApplicationFiled: March 15, 2012Publication date: December 12, 2013Applicants: CITIZEN MACHINERY MIYANO CO., LTD., CITIZEN HOLDINGS CO., LTD.Inventor: Hiroshi Kasuya
-
Publication number: 20130256201Abstract: There is provided a workpiece separation apparatus permitting to input a mixture of workpieces and chips stably within a flow current and to separate them accurately and efficiently. The workpiece separation apparatus includes an input cylinder (120) inserted within a separating container (110) and a fluid supplying means (130) arranged so as to supply fluid to the separating container (110) from a part lower than a lower end of the input cylinder (120), and configured such that the fluid overflows and flows out of the upper end of the separating container (110) due to a flow current generated within the separating container (110) and such that a fluid level of the fluid rises up in the input cylinder (120) and the fluid does not flow out of the upper end of the input cylinder (120).Type: ApplicationFiled: December 13, 2011Publication date: October 3, 2013Applicants: CITIZEN MACHINERY MIYANO CO., LTD., CITIZEN HOLDINGS CO., LTD.Inventors: Shozen Yanakawa, Hiroshi Kasuya, Kyota Kotake, Satoru Akimoto, Takahiro Mogi, Youji Takeuchi, Umeo Tsuyusaki
-
Publication number: 20130249174Abstract: Wear of a sliding member is prevented or controlled in a portion of the sliding member at a specific angular position (phase) about an axis. A fixing device includes a chuck-actuating claw which rotates with a main spindle, and is displaced to open and close a chuck section, a rubber ring which rotates with the main spindle, and a bobbin (sliding member) which is provided to be movable between a first position and a second position along an axis direction of the main spindle, rotates with the rubber ring in contact with the rubber ring in the first position, rotates with the chuck-actuating claw while displacing the chuck-actuating claw in contact with the chuck-actuating claw in the second position, and does not have contact with both of the rubber ring and the chuck-actuating claw in a partial range between the first position and the second position.Type: ApplicationFiled: November 14, 2011Publication date: September 26, 2013Applicants: CITIZEN MACHINERY MIYANO CO., LTD., CITIZEN HOLDINGS CO., LTD.Inventors: Yoshinobu Kishi, Tetsuya Takise, Akinobu Kanda, Yoshimi Saruta
-
Publication number: 20130184893Abstract: The present invention provides a power-supply management device which can efficiently connect and disconnect power supply to an electric-powered section, and a machine tool including the power-supply management device. The power-supply management device (101) detects a synchronization command of a control program, and compares an operation time of the electric-powered section between synchronizations in each control system which is a synchronization target by the synchronization command on the basis of the detected synchronization command. Then, the power-supply management device (101) disconnects the power supply to the electric-powered section belonging to the control system except the control system having the maximum operation time of the electric-powered section between the synchronizations, and restarts the power supply at the end of the synchronization in each control system.Type: ApplicationFiled: September 30, 2011Publication date: July 18, 2013Applicants: Citizen Machinery Miyano Co., LTD., Citizen Holdings Co., LTD.Inventors: Hajime Matsumaru, Satoru Akimoto, Hitoshi Matsumoto, Yutaka Shibui, Umeo Tsuyusaki, Hiroshi Shinohara, Shigeo Yanagidaira
-
Publication number: 20130098738Abstract: A product collection apparatus which provides a product conveyed by a conveyance belt to a rotary table to collect the product includes a conveyance belt to be rotated; a rotary table supported rotatably, linkage unit which links a driving force input unit for conveyance belt which receives driving force to rotate the conveyance belt and a driving force input unit for rotary table which receives driving force to rotate the rotary table, and an actuator which transfers the driving force to the conveyance belt and the rotary table through the linkage unit.Type: ApplicationFiled: September 27, 2012Publication date: April 25, 2013Applicants: CITIZEN MACHINERY MIYANO CO., LTD., CITIZEN HOLDINGS CO., LTD.Inventors: Takayuki SATO, Kiyoto Shinohara
-
Publication number: 20130014619Abstract: There is provided a machine tool which holds a large number of tools and capable of performing various kinds of works without replacing the tools, which is easy to operate and which allows faster and accurate operations with less number of movable parts. A front tool post (141) and a back spindle (120) are configured to be integrally movable in a Y-axis direction, and a plurality of front working tools (140) and a plurality of back working tools (130) are disposed on the front and back tool posts (141) and (131), respectively, in a plurality of tiers in the Y-axis direction.Type: ApplicationFiled: February 28, 2011Publication date: January 17, 2013Applicants: CITIZEN MACHINERY MIYANO CO., LTD., CITIZEN HOLDINGS CO., LTD.Inventors: Umeo Tsuyusaki, Satoru Akimoto, Hiroshi Shinohara
-
Publication number: 20130008291Abstract: There is provided a machine tool capable of working a workpiece regardless whether it is gripped by a front spindle or a back spindle while guiding a free end side thereof by one guide bushing (160), is simplify and compacted and suppresses an increase of a number of axes to be controlled. The machine tool comprises the front and back spindles (112) and (122) having one and same axial line and disposed opposite each other and a guide bushing (160) having an axial line identical with the axial line. The guide bushing (160) is disposed between the front and back spindles (112) and (122), is configured so that the guide bushing (160) can guide the workpiece on both ends of the workpiece (W), so that the workpiece gripped either by the front spindle (112) or the back spindle (122) can be inserted, and so that the guide bushing (160) is movable in an axial direction.Type: ApplicationFiled: February 28, 2011Publication date: January 10, 2013Applicants: CITIZEN MACHINERY MIYANO CO., LTD., CITIZEN HOLDINGS CO., LTD.Inventor: Takaichi Nakaya