专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2002210635A INSTRUMENTATION METHOD OF WORKPIECE DIMENSION BY ELECTRIC CHUCK 失效
公开(公告)号：JP2002210635A
公开(公告)日：2002-07-30
申请号：JP2001004861
申请日：2001-01-12
申请人： HITACHI SEIKI KK
发明人： SEGAWA YASUNORI , KUBOTA MAMORU
IPC分类号： B23Q17/20 , B23B25/06 , B23B31/00 , B23B31/28
摘要： PROBLEM TO BE SOLVED: To provide an instrumentation method of a workpiece dimension that can measure a dimension of a workpiece by detecting the positions of holding jaws when the workpiece is held by an electric chuck of a machine tool. SOLUTION: The instrumentation method of a workpiece dimension by an electric chuck measures a dimension of the workpiece by holding the workpiece with the holding jaws 30 of the chuck 15 supported on a frame arranged on a bed of the machine tool. The chuck holds the workpiece through opening and closing motion of the holding jaws by a positionally controllable drive motor 4, and allows the held workpiece to be machined by a machining tool. A procedure is set to store a relation between positions of the holding jaws and the workpiece dimension, and a procedure is set to hold a given machined region of the workpiece machined by the machine tool with the holding jaws and under a given holding condition and compute an actually measured dimension of the machined region from the positions of the holding jaws in the state.

2. 发明专利

JP2002086302A TOOL REST OF TURNING CENTER 失效
公开(公告)号：JP2002086302A
公开(公告)日：2002-03-26
申请号：JP2000276922
申请日：2000-09-12
申请人： HITACHI SEIKI KK
发明人： KOSHIYOU AKIRA , MOTOJIMA NAOYUKI
IPC分类号： B23Q16/02 , B23B21/00 , B23B29/32 , B23Q16/10
摘要： PROBLEM TO BE SOLVED: To provide a tool rest of a turning center capable of displaying excellent performance at the time of working both of a fixed tool and a rotating tool without having adverse influence by a positioning and fixing mechanism and a revolving driving mechanism on each other. SOLUTION: The tool rest of the turning center furnished with a turret 41 free to revolve and divide a rotating tool installing part and a fixed tool installing part at a working position has positioning and fixing means 82, 90, 93 provided between a tool rest base body 74 and the turret 41 for positioning and fixing the turret 41 at a specified angular position in relation to the tool rest base body, and revolving moving positioning means 84, 100 provided between the tool rest base body and the turret 41 for moving and positioning the turret 41 at an optional angular position in the revolving direction in relation to the tool rest base body. A positioning function of the revolving moving positioning means 84, 100 are nullified at a working position of a fixed tool BT, and a positioning and fixing function of the positioning and fixing means 82, 90, 93 are nullified at an angular position except for the working position of the fixed tool BT.

3. 发明专利

JP2001079703A METHOD AND DEVICE FOR CONTROLLING ELECTRIC CHUCK 失效
公开(公告)号：JP2001079703A
公开(公告)日：2001-03-27
申请号：JP25518699
申请日：1999-09-09
申请人： HITACHI SEIKI KK
发明人： SEGAWA YASUNORI , OGAWA TORU
IPC分类号： B23B31/24
摘要： PROBLEM TO BE SOLVED: To shorten the time required for a grip by switching the relative data between the driving torque and the gripping force according to the gripping speed when the set value of the holding force is in a low gripping force region or in a high gripping force region in the chuck of a machine tool opened or closed by a drive motor. SOLUTION: When a work is to be gripped by a chuck 15, an upper shaft 2 is positioned and stopped at a prescribed angular position by the main shaft index instruction from an NC device. A securing pin 45 is inserted into a positioning hole 41, and a piston 112 is driven by the pressurized air fed through the center of the securing pin 45 to release the engagement between clutch teeth 116, 117. The main shaft 2 is rotated by a main shaft motor 4, a scroll 96 is rotated via a gear reduction mechanism to open or close gripping pawls 30. The gripping speed is switched according to the set value of the gripping force, and a plurality of relative data indicating the relation between the gripping force and the driving torque of the drive motor are switched according to the gripping speed to control the gripping force.

4. 发明专利

JP2000343301A SUPPORTING METHOD AND DEVICE FOR ROD-SHAPED WORKPIECE BY TURNING MACHINE TOOL 失效
公开(公告)号：JP2000343301A
公开(公告)日：2000-12-12
申请号：JP15124799
申请日：1999-05-31
申请人： HITACHI SEIKI KK
发明人： SHIMADA TAKU
IPC分类号： B23B13/02
摘要： PROBLEM TO BE SOLVED: To provide a rod-shaped workpiece supporting device of a turning machine tool capable of turning a rod-shaped workpiece in the condition that run-out is prevented using the effect of centrifugal force due to the rotation of a spindle. SOLUTION: A rod-shaped workpiece supporting device of a lathe 1 is to support a rod-shaped workpiece 3 in cooperation with a chuck 12 attached to the front part of a spindle 10, wherein the workpiece 3 is grasped by the chuck 12 and rotated in a single piece with the spindle 10. The spindle 10 is furnished with a supporting means 22 located a certain distance behind the chuck 12 and supporting the workpiece 3 by the effect of centrifugal force due to the rotation of the spindle 10, and rotation is generated while the center line of the workpiece 3 is positioned approx. identical to an axis CL of the spindle 10.

5. 发明专利

JP2000263360A WORK PLACING DEVICE IN MAIN SPINDLE MOVING TYPE MACHINE TOOL 失效
公开(公告)号：JP2000263360A
公开(公告)日：2000-09-26
申请号：JP7493099
申请日：1999-03-19
申请人： HITACHI SEIKI KK
发明人： SAKAMOTO IKUO
IPC分类号： B23Q3/02 , B23B7/12 , B23Q7/04 , B25J15/08
摘要： PROBLEM TO BE SOLVED: To provide a work placing device which can grasp the unmachined work in the state stuck to the claw of a chuck surely by a simple structure at the receiving time of an unmachined work by the chuck. SOLUTION: In a work placing device 3, a spindle stock 4 for supporting the main spindle 5 rotatably places works 7, 8 for supplying to a main spindle moving type machine tool 1 moving to a first direction which is at least the axis direction CL of the main spindle and a second direction orthogonally crossing with this first direction and also transfers the work in the space toward the chuck 6 provided on the lower end of the spindle 5. The device 3 is provided with a work push-press means 60, provided on the moving locus parallel with the second direction in which the main spindle 5 is moved, in which a chuck 6 can amend to grasp the work 7 under the state push-pressing the work grasped by the chuck 6 in the direction parallel with the first direction and on a chuck 6 side.

6. 发明专利

JP2000005966A PALLET EXCHANGER OF MACHINE TOOL 失效
公开(公告)号：JP2000005966A
公开(公告)日：2000-01-11
申请号：JP22115498
申请日：1998-06-16
申请人： HITACHI SEIKI KK
发明人： YASUDA HIROSHI
IPC分类号： B23Q7/00
摘要： PROBLEM TO BE SOLVED: To provide a pallet exchanger such that both a reduction in pallet exchanger time and energy savings can be achieved by miniaturizing a drive system for exchanging action. SOLUTION: A pallet support device 20 provided with guide means 24, 25 for the parallel movement of pallets 4, 5 is provided in the mid position S3 between a setup position S2 and the position S1 of a table 6, and a conveying arm 21 capable of engaging and disengaging engagement parts 26, 27 on the pallet and conveying the pallets one by one through continuous turning and a means 22 for retaining the pallet in the mid position in association with the turning are provided in the mid position. Also, a control means is provided for performing control in which the table is positioned in one pallet exchanging position corresponding to the one pallet guide means 24 and, after the pallet in the table position is moved to the one pallet guide means in the mid position, the table is positioned in the other pallet exchanging position corresponding to the other pallet guide means 25.

7. 发明专利

JPH11333649A CLAMP AND UNCLAMP DEVICE FOR PALLET FOR MACHINE TOOL 失效
公开(公告)号：JPH11333649A
公开(公告)日：1999-12-07
申请号：JP19818398
申请日：1998-05-21
申请人： HITACHI SEIKI KK
发明人： HAGA TSUTOMU
IPC分类号： B23Q3/00 , B23Q7/00
摘要： PROBLEM TO BE SOLVED: To reliably separate a pallet mounted on a table through the taper surface of at least a clamp and unclamp device during unclamping operation. SOLUTION: To removably clamp a pallet against a table, at least three sets of clamp and unclamp mechanisms 21 and 32 are arranged. In a so formed clamp and unclamp device 20, at least two sets of the clamp and unclamp mechanisms of three sets of the clamp and unclamp mechanisms 21 and 32 are a two-surface constraining clamp and unclamp mechanism 21 to clamp a pallet 9 on a table 1 through two-surface constraint through which a taper shaft part arranged on the table upper surface side and an end face on the table upper surface side are respectively adhered to a taper hole part formed in the under surface side of a pallet 9 and an end face on the pallet lower surface side. The clamp and unclamp mechanisms 21 and 32 at least in three sets clamp the pallet 9 against the table 1 during clamping operation, the pallet 9 is brought into an unclamping state during unclamping operation, and the pellet under surface is forcibly pushed up to separate the end face on the pallet under surface side from the end face on the table upper surface side.

8. 发明专利

JP2927838B2 失效
公开(公告)号：JP2927838B2
公开(公告)日：1999-07-28
申请号：JP27610589
申请日：1989-10-25
申请人： HITACHI SEIKI KK , NITSUSAN JIDOSHA KK
发明人： KITAMURA YOSHITO , KUBOTA AKIO , KAMIO YOICHI , HISAMATSU KENICHI , INAGAKI KYOBUMI , MIURA AKIO
IPC分类号： B23Q41/00 , B23Q15/04 , G05B19/418

9. 发明专利

JPH11188513A AUTOMATIC CHANGING METHOD FOR CHUCK OF MACHINE TOOL AND AUTOMATIC CHUCK CHANGING DEVICE 失效
公开(公告)号：JPH11188513A
公开(公告)日：1999-07-13
申请号：JP36489397
申请日：1997-12-20
申请人： HITACHI SEIKI KK
发明人： KOJIMA HIROSHI , HOTTA HIKARI , KANETANI MASAHARU , TANABE KATSUJI
IPC分类号： B23B31/10 , B23B31/02
摘要： PROBLEM TO BE SOLVED: To reliably and precisely mount a chuck on a main spindle side in changing of the chuck. SOLUTION: An automatic chuck changing device 20 is provided with a chuck stocker storing a plurality of chuck main bodies 5, a conveying device 1 for conveying the chuck main bodies 5 received from the chuck stocker, and a chuck moving device 22 provided on a main spindle 13 of an NC lathe 2 so as to be moved in the axis CL direction of the main spindle and capable of being moved from the first position to attach the chuck main bodies to the main spindle to the second position P3 to receive the chuck main bodies from the conveying device 7. After the chuck moving device 22 which has received the chuck main bodies from the conveying device 7 in the second position is moved to the first position, the chuck main bodies 5 held by the chuck moving device 22 are attached to the main spindle 13.

10. 发明专利

JPH11170101A WORKPIECE REPLACING DEVICE FOR SPINDLE MOVING TYPE VERTICAL MACHINE TOOL 失效
公开(公告)号：JPH11170101A
公开(公告)日：1999-06-29
申请号：JP36206097
申请日：1997-12-11
申请人： HITACHI SEIKI KK
发明人： OTAKE KIMITAKA , INABA HIROSHI
IPC分类号： B23Q7/02 , B23B3/06 , B23B15/00
摘要： PROBLEM TO BE SOLVED: To increase reliability in a simple constitution and also improve safety and workability of workpiece replacing work. SOLUTION: In a spindle moving type vertical lathe 1, where a headstock 4 moves in the axial direction of the spindle, and in the orthogonal direction of the axial direction; this workpiece replacing device 3, for transferring a workpiece with a chuck, provided on the lower end of the spindle between, is equipped with a base body 32 provided in the vicinity of the machine main body 2 of a lathe 1, a swivel base 35 provided on the base body, and moving between a movable body moving region 38 where a moving body, including the headstock, moves and outside the region 38, a raw workpiece placing part 30, provided on the swivel base, and for placing a raw workpiece 7 to be received by the chuck; and a processed work piece placing part 31 juxtaposed with the placing part 30 on the swivel base, and for placing a processed workpiece 8 delivered from the chuck. The workpieces 7 and 8 are delivered, between the replacing device 3 and the chuck, in the region 38, and also a worker performs raw workpiece placing work and processed workpiece taking-out work outside the region 38.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式