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1. 发明专利

JPS6215060A MACHINING CONDITION MONITOR WITH LOAD CELL 失效
公开(公告)号：JPS6215060A
公开(公告)日：1987-01-23
申请号：JP15537785
申请日：1985-07-15
申请人： KAWASAKI STEEL CO , HITACHI SEIKI KK
发明人： YAMAMOTO TAKESHI , NISHIKAWA AKIHIRO , TAKAHASHI AKIRA , MACHII FUJIO , NAGAI KAZUHIRO
IPC分类号： B23B5/16 , B23Q15/013 , B23Q17/09
摘要： PURPOSE:To eliminate necessity for use of any locating device and enable mating in rough location by holding load cells pinched between the bed and a chuck to grip a work to be processed, by sensing the repulsive force during machining through electric charges,and by monitoring the machining condition through conversion into voltage. CONSTITUTION:A steel pipe W as work to be processed W is gripped by pawls of a rigid chuck 13 by actuating a cylinder device, and is located roughly. A column 2 on a bed 1 is advanced by a Z-axis feeding motor 3, and a cutter head 7 of spindle 4 is rotated. The repulsive force to the machining generated when bevel processing is made to the edge of the work W is sensed by load cells 15, 15' mounted between the rigid chuck 13 and bed 1 in the form of electric charges, wherein the load cell 15 serves for Z-axis direction and the one 15' for rotational direction. The electric charges are converted into change of voltage to serve monitoring of the machining condition. This enables machining without requiring precise location.

2. 发明专利

JPS6215061A MACHINING CONDITION MONITOR WITH LOAD CELL 失效
公开(公告)号：JPS6215061A
公开(公告)日：1987-01-23
申请号：JP15537885
申请日：1985-07-15
申请人： HITACHI SEIKO KK , KAWASAKI STEEL CO
发明人： NISHIKAWA AKIHIRO , TAKAHASHI AKIRA , MACHII FUJIO , NAGAI KAZUHIRO , YAMAMOTO TAKESHI
IPC分类号： B23Q15/013 , B23Q17/00 , B23Q17/09
摘要： PURPOSE:To provide precise processing and save energy in processing by holding load cells pinched between a bed and a chuck to grip a work to be processed, sensing the repulsive force during machining through electric charges, converting into voltage and interlocking with a numerical control device. CONSTITUTION:A steel pipe as work to be processed W is gripped by pawls of a rigid chuck 13 by actuating a cylinder device, and is located roughly. A column 2 placed on a bed 1 is advanced by a Z-axis feeding motor 3, and a cutter head 7 gripped by a head clamping chuck 6 of spindle 4 is put in rotation. The repulsive force to machining to be generated when the outside surface of the work W is processed, is sensed in the form of electric charges by load cells 15, 15' pinched between the rigid chuck 13 and bed 1, wherein the load cell 15 serves for the Z direction and the one 15' for the rotational direction. The electric charges are converted into voltage change to serve monitoring of the machining condition, and the voltage change is judged to a certain extent and interlocked with a numerical control device to accomplish automatic processing.

3. 发明专利

JPH0323295B2 失效
公开(公告)号：JPH0323295B2
公开(公告)日：1991-03-28
申请号：JP15537785
申请日：1985-07-15
申请人： KAWASAKI SEITETSU KK , HITACHI SEIKI KK
发明人： YAMAMOTO TAKESHI , NISHIKAWA AKIHIRO , TAKAHASHI AKIRA , MACHII FUJIO , NAGAI KAZUHIRO
IPC分类号： B23B5/16 , B23Q15/013 , B23Q17/09

4. 发明专利

JP2000126971A AUTOMATIC TOOL CHANGER FOR LATHE 失效
公开(公告)号：JP2000126971A
公开(公告)日：2000-05-09
申请号：JP30554398
申请日：1998-10-27
申请人： HITACHI SEIKI KK
发明人： KOSHIYOU AKIRA , NISHIKAWA AKIHIRO , KAMIO YOICHI
IPC分类号： B23Q3/157
摘要： PROBLEM TO BE SOLVED: To change tools between a tool magazine and a tool spindle even when they have different angular phases on the tool magazine on one hand and on the tool spindle on the other. SOLUTION: A single arm 95 stands at a standby position 96 holding a tool pot 30 of a cutting tool B for replacement at the standby position 96. A twin arm 110 standing ready is swung through about 90 deg.. The swing motion simultaneously causes one grip portion to grip a toolholder 69 on a turret or a rotary toolholder and the other to grip a toolholder 69 of the cutting tool B on the single arm 95. On gripping both elements, the twin arm 110 is driven in the swing axis direction and pulled back, before revolved through 180 deg. to change the positions of the tool in the tool pot 30 the single arm 95 holds and the tool on the turret.

5. 发明专利

JPH0957580A CENTERING METHOD FOR PIPE END AND CENTERING DEVICE 失效
公开(公告)号：JPH0957580A
公开(公告)日：1997-03-04
申请号：JP23207795
申请日：1995-08-18
申请人： HITACHI SEIKI KK , NIPPON KOKAN KK
发明人： NISHIKAWA AKIHIRO , TAKAHASHI NOBORU , TAKARA TETSUYA , HARA NOBUAKI
IPC分类号： B23Q15/22 , B23B5/16 , B23B25/06
摘要： PROBLEM TO BE SOLVED: To center the end of a pipe at highly precisely without affected by a sliding resistance in adjusting rigidity of the pipe, a center position of a pipe fixing chuck, etc. SOLUTION: A center position of the end of a pipe 9 is measured by a measuring head with the pipe 9 held by two pipe body chucks 4, 5 which are separated in the axial direction of the pipe 9, a process for measuring a drift between the measurement position and the shaft core of a working head 2 and a process for adjusting the positions of the pipe body chucks 4, 5 to approach the drift to zero are repeated a prescribed times, and the central position of the end of the pipe is held in a prescribed range from the shaft core position of the working head so that the end of the pipe is worked.

6. 发明专利

JPS6420909A METHOD AND APPARATUS FOR WORKING TWISTED WORKPIECE 失效
公开(公告)号：JPS6420909A
公开(公告)日：1989-01-24
申请号：JP17730087
申请日：1987-07-17
申请人： HITACHI SEIKI KK
发明人： NISHIKAWA AKIHIRO , SATO KANJI
IPC分类号： B23C3/16
摘要： PURPOSE:To work a twisted workpiece with high accuracy in turning the outer periphery of the twisted workpiece by rotating a rotary tool located eccentrically and an angle to the straight axis and feeding the rotary tool in the direction of straight axis with a ratio of constant pitch to the rotation of workpiece. CONSTITUTION:A hut 16 on a tool head 10 is loosened to turn a turn bed 15 and set an angle theta so that the position of a cutting tool 23 on the tip of a rotary tool 4 is adjusted at the upper end position of a blank. A tool driving motor 18 is rotatably driven to rotate the rotary tool 4. To make always the twisting direction of a workpiece W coinciding with the direction theta of tool 4, the tool 4 is fed by a Y axis feed motor 13 and the workpiece W is rotated by a drive motor 17. Assuming the rotational frequency of work piece W is N, pitch is P and feed in the Y axis direction is f, the workpiece W and rotary tool 4 are fed with relative ratio of N=f/p. Thus, the worked twisted workpiece W is worked while entering a space section 22 of rotary tool 4.

7. 发明专利

JPS5627754A NUMERICALLY CONTROLLED LATHE WITH TOOL EXCHANGER 失效
公开(公告)号：JPS5627754A
公开(公告)日：1981-03-18
申请号：JP10141879
申请日：1979-08-09
申请人： HITACHI SEIKI KK
发明人： UCHIDA YOSHIROU , NISHIKAWA AKIHIRO , MAKINO TAKATOSHI
IPC分类号： B23B3/16 , B23B29/24 , B23P23/02 , B23Q3/155 , B23Q39/02
摘要： PURPOSE:To provide a more quantity of tools and perform the machining of a work complicated with more machining stages, by further providing an automatic tool exchanger with a tool storage magazine to an NC lathe having a plurality of fixed tools. CONSTITUTION:A turret 7 having a plurality of tools is vertically, swivellably and axially supported on a tool slide 6. There is provided a tool receiver constructed only detachably for an inside diameter tool block 11 of the plurality of tools on the turret 7. When said receiver is indexed to a preparation position of tool exchange, a tool mounting drive gear is provided on the tool slide behind the turret 7 concentrically with the tool receiver. Between a swivellable tool storage magazine 12 and the turret 7, an arm 13 for performing a tool exchange only for the inside diameter tool block 11 of the plurality of tools is equipped parallelly to a swivelling axis core of the turret 7, longitudinally movably and swivellably.

8. 发明专利

JPS55164402A MACHINE TOOL 失效
公开(公告)号：JPS55164402A
公开(公告)日：1980-12-22
申请号：JP6720979
申请日：1979-05-30
申请人： HITACHI SEIKI KK
发明人： NISHIKAWA AKIHIRO , YOSHIOKA SEIJI
IPC分类号： B23Q7/04 , B23B15/00
摘要： PURPOSE:To automate and simplify a workpiece mounting operation by means of the damping operation used also for a lathe body by directly clamping a workpiece mounting device on a slide portion of the lathe body. CONSTITUTION:A sliding surface 4 is formed on a base 1 in a horizontal direction, a saddle is mounted beyond it and is made to slide by a servomotor 6 to the right and left sides. A sliding surface is laid at right angles to the sliding surface 4, and a workpiece mounting device 7 is equipped on it. The holder 7C of the device 7 is moved to a workpiece on the conveyor, the workpiece is held by the holder 7C, and the workpiece is transferred to the mounting device 3. When the workpiece is held by claws 3', the holder 7C releases the work, rises, retires, waits until the workpiece has been machined completely. As soon as the machining operation has been completed, the workpiece on the device 3 is held by the holder 7C and transferred.

9. 发明专利

JP2001341048A SPLASH GUARD FOR MAIN SPINDLE MOVING TYPE MACHINE TOOL 失效
公开(公告)号：JP2001341048A
公开(公告)日：2001-12-11
申请号：JP2000162285
申请日：2000-05-31
申请人： HITACHI SEIKI KK
发明人： OTAKE KIMITAKA , NISHIKAWA AKIHIRO , HASHIMOTO SHUICHIRO
IPC分类号： B23Q11/08
摘要： PROBLEM TO BE SOLVED: To provide a splash guard for a main spindle moving type machine tool which covers a machining area with a simple structure without providing a driving device, resulting in a smaller area for installing the entire machine tool. SOLUTION: The splash guard 6, forming an opening 35 through which a main spindle table 4 can pass while moving and capable of covering the opening 35 when the main spindle table 4 has moved to the machining area 7, comprises an expansion sheet part 37 comprising a first cover 41 and a second cover 42, the first cover 41 comprising a first slide-contact surface which is fixed to a saddle 13 moving in a direction of the X-axis, moves in a direction of the X-axis with the saddle 13 and is provided in extension in a direction orthogonal to a plane containing the opening 35, the second cover 42 being provided with a second slide- contact surface parallel to the first slide-contact surface, the second cover 42 sliding in a direction of the X-axis relative to the first cover 41 and covering the opening 35 when the opening 35 and the second slide-contact surface slide-contacts, a pull spring 45 always biasing the second cover 42 relatively in a direction of the machining area 7, and a restricting means 46 for restricting a moving action of the second cover 42 against the spring force when the main spindle table 4 has moved to the machining area 7 and for locking the second cover 42 at a predetermined position, in which the second slide-contact part covers the opening 35.

10. 发明专利

JPH10337601A MACHINE TOOL FOR WORKING TUBULAR MATERIAL TO BE WORKED 失效
公开(公告)号：JPH10337601A
公开(公告)日：1998-12-22
申请号：JP16061497
申请日：1997-06-03
申请人： HITACHI SEIKI KK
发明人： NISHIKAWA AKIHIRO
IPC分类号： B23B5/16
摘要： PROBLEM TO BE SOLVED: To enhance facility efficiency at setup change work for specialized tools in applying end work to a tubular material to be worked. SOLUTION: A main shaft 5 is rotatably supported. Installed are a main shaft support 3 movably provided to a head in a shaft line C direction of a main shaft, a face plate 20 installed on the main shaft 5 and integrally rotating with the main shaft 5, and a copy roller 23 kept into contact with the peripheral face of a steel pipe 8, one slider 21 movably provided on the face plate 20 in the diameter direction of the face plate 20 intersecting with the shaft line of the main shaft and carrying out movement actuation interlocking with the copy roller on the peripheral face of the steel pipe 8, and a working tool for the steel pipe. The face plate 20 is provided with the other slider 22 relatively movable in the diameter direction of the face plate 20 with respect to the slider 21. Numerical control is applied to the movement of the main shaft support in the shaft line direction of the main shaft, and the movement of the other slider in the face plate diameter direction. The result moves the tool on a desired tool passage based on the peripheral face as a reference and works.

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