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1. 发明专利

JPH0579461B2 失效
公开(公告)号：JPH0579461B2
公开(公告)日：1993-11-02
申请号：JP1304587
申请日：1987-01-22
申请人： OKUMA MACHINERY WORKS LTD
发明人： TAKESAWA ISAO
IPC分类号： B23Q41/00

2. 发明专利

JPH01245307A NON-CONTACTING TYPE DIGITIZER 失效
公开(公告)号：JPH01245307A
公开(公告)日：1989-09-29
申请号：JP7377488
申请日：1988-03-28
申请人： OKUMA MACHINERY WORKS LTD
发明人： TAKESAWA ISAO , HAYAKAWA YUKIO
IPC分类号： B23Q15/00
摘要： PURPOSE:To allow a non-contacting type digitizer to execute operation similar to the pencil scanning of a contact type digitizer and to improve operability by allowing a light pen, etc., to touch a display graphic on a graphic display to specify an intersecting line. CONSTITUTION:A light pen or a cursor 13 is included in the graphic display 12 and an operator touches a specified position with a light pen point while observing a display graphic to specify various areas or an intersecting line. An interchange processor 14 executes the interchange processing of working data based on said specification. At the time of specifying an intersecting line on a position decided to be independently worked about the applied graphic, the operator touches the specified position 2a with the light pen or cursor 13. Consequently, specified data are extracted, an intersecting line passing the point is calculated and only the specified intersecting line is checked by the operator by coloring or ON/OFF operation. When the specification of the intersecting line is checked, the NC data of the intersecting line are formed and stored.

3. 发明专利

JPS63180451A PREPARATION BY JIG HAVING INFORMATION 失效
公开(公告)号：JPS63180451A
公开(公告)日：1988-07-25
申请号：JP1304587
申请日：1987-01-22
申请人： OKUMA MACHINERY WORKS LTD
发明人： TAKESAWA ISAO
IPC分类号： B23Q41/00
摘要： PURPOSE:To shorten the preparation time by installing a discriminating means for memorizing the work No., tool No., and working program No., onto a workpiece installation jig and outputting the data into a reading device and automatically carrying out the installation of a workpiece, mounting of a tool, and calling-out of a program. CONSTITUTION:The work No., tool No., and working program No. which are memorized in a discriminating means 14 installed onto a workpiece installation jig 7 are read by a reading device 15. The work No. is outputted into an NC device 18 through a controller 16, and a workpiece W is installed onto the jig 7 by a robot 25. The tool No. is outputted into the NC device 18 from the controller 16 by an installation completion signal, and it is judged that a tool magazine 1 is equipped with the necessary tools or not, and a tool preparation signal is outputted. Further, the working program No. is outputted into the NC device 18, and the working preparation is completed. Through the above- described automatic operation, the preparation time can be reduced.

4. 发明专利

JPS6156058B2 失效
公开(公告)号：JPS6156058B2
公开(公告)日：1986-12-01
申请号：JP12985984
申请日：1984-06-23
申请人： OKUMA MACHINERY WORKS LTD
发明人： YASUBA SHOICHI , TAKESAWA ISAO
IPC分类号： B23Q15/22 , B23Q15/28 , G05B19/18

5. 发明专利

JPS54128879A COMPENSATION OF TOOL FOR NUMERICAL CONTROL MACHINE TOOLS AND SYSTEM THEREFOR 失效
公开(公告)号：JPS54128879A
公开(公告)日：1979-10-05
申请号：JP3727978
申请日：1978-03-29
申请人： OKUMA MACHINERY WORKS LTD
发明人： YASUBA SHIYOUICHI , TAKESAWA ISAO
IPC分类号： B23Q17/09 , B23B25/06 , B23Q15/00 , B23Q17/22
摘要： PURPOSE:For improving accuracy, to control the position of a tool in accordance with the output of the computation that is made as to the compensation for the wear loss on the basis of the boundary wear loss at the distance corresponding to 1/2 of feed distance per revolution backward of the tip of said tool, of said blade portion. CONSTITUTION:A detector 13 is fixedly provided to detect the wear loss of the blade tip of the tool 10 fitted on a tool rest 9 and a relative operator circuit 19 is furnished to perform operation of the boundary wear loss (B0-B1) at the distance corresponding to 1/2 of feed distance per revolution backward of the tip in the feed direction of said tool 10 on the basis of the output from said detector 13. Further, a tool compensating circuit 22 is provided to perform operation of the compensation of said tool 10 on the basis of the output from said relative operator circuit 19, and a numerical controller 11 to control the position of said tool 10 in accordance with the output of said compensating circuit 22. A value of surface roughness (A1-B1) from said relative operator circuit 19 is compared with the setting thereof by a judging circuit 23, and a machine tool 21 is operated in accordance with the output of said controller 11.

6. 发明专利

JPH11333657A ABNORMALITY MONITORING DEVICE FOR TOOL CHANGE OPERATION 失效
公开(公告)号：JPH11333657A
公开(公告)日：1999-12-07
申请号：JP15836498
申请日：1998-05-22
申请人： OKUMA MACHINERY WORKS LTD
发明人： TAKESAWA ISAO
IPC分类号： B23Q3/155 , B23Q11/00
摘要： PROBLEM TO BE SOLVED: To provide a device to monitor abnormal phenomenon of tool change operation due to the manufacture error of a tool change arm and prevent the damage of a machine tool and a work. SOLUTION: The torque waveform pattern of a drive motor 1 during the normal effect operation of a tool change arm is stored at a memory circuit 2. By comparing this torque waveform pattern with a torque waveform pattern storing the torque waveform pattern of a drive motor 1 under current operation by a comparing circuit 4, propriety is decided. Further, the rate of change of a time of a torque waveform pattern during normal operation is stored at a memory circuit 8, and compared with the rate of change of a time of the torque pattern of a drive motor during current operation. In a case of no- coincidence therebetween, the rate of change of a time of motor torque under current operation is added the given number of times and compared with a torque waveform pattern during normal operation to decide propriety.

7. 发明专利

JPH11291141A COVER DEVICE OF MACHINE TOOL 失效
公开(公告)号：JPH11291141A
公开(公告)日：1999-10-26
申请号：JP9631298
申请日：1998-04-08
申请人： OKUMA MACHINERY WORKS LTD
发明人： TAKESAWA ISAO
IPC分类号： B23Q11/08
摘要： PROBLEM TO BE SOLVED: To improve straight performance of a telescopic cover by forming the telescopic cover by telescopically connecting plural movable plates, installing sliders on the respective movable plates, fixing rails for sliding the sliders to a machine body, and forming a direct acting guide of the telescopic cover out of the rails and the sliders. SOLUTION: A telescopic cover 1 is formed by telescopically connecting plural movable plates 3. A direct acting guide 2 is composed of sliders 6 installed on the respective movable plates 3, rails 7 for sliding the sliders 6 and fixing plates 9 for fixing the rails 7 to a machine body 8 of a machine tool. Since the direct acting guide 2 guides the telescopic cover 1 in a sliding guide system, the sliders 6 and the rails 7 can be closely easily installed to improve straight performance of the telescopic cover 1, so that the telescopic cover 1 can be telescoped at a high speed, durability can be enhanced, and vibration and noise at starting stopping time can be restrained.

8. 发明专利

JPH10277889A CUTTER TIP POSITION MEASURING DEVICE 失效
公开(公告)号：JPH10277889A
公开(公告)日：1998-10-20
申请号：JP1844598
申请日：1998-01-30
申请人： OKUMA MACHINERY WORKS LTD
发明人： NASHIKI MASAYUKI , SHIBATA HIDETAKA , TAKESAWA ISAO
IPC分类号： G01B21/00 , B23Q17/22
摘要： PROBLEM TO BE SOLVED: To provide a cutter tip position measuring device having a function to make measurement and correction of the displacement of a cutter tip sensor with respect to the processing reference position of the machine without requiring testing the work and performing machining eventually. SOLUTION: At the foremost extremity 1a of the spindle stock 1 of an NC lathe, an L-shaped arm 2 is pivoted in such a way as capable of revolving. A cutter tip sensor 4 is installed at the forefront of the arm 2, and contacting surfaces 4a, 4b, 4c, 4d with the cutter tip are formed on the sensor 4. At the foremost extremity 1a of the spindle stock 1, a displacement sensor 5 is installed to measure the displacement of the cutter tip sensor in such a way as positioned near the sensor 4 in the condition that the arm 2 is accommodated. The sensors may be an image sensor 5.

9. 发明专利

JPH0957581A LIFE DETECTOR FOR TOOL GRIPPER 失效
公开(公告)号：JPH0957581A
公开(公告)日：1997-03-04
申请号：JP24057195
申请日：1995-08-25
申请人： OKUMA MACHINERY WORKS LTD
发明人： TAKESAWA ISAO
IPC分类号： B23Q3/157 , B23Q17/00
摘要： PROBLEM TO BE SOLVED: To provide a life detector which prevents beforehand tool holding failure caused by abrasion of a resin-made integrated tool gripper for holding a tool of a machining center. SOLUTION: A measuring arm 6 having two arms is provided inside an upper tool gripper 3 of a disk 2 of a tool magazine 1 in such a state as advancing to a measurement position (a) by a cylinder 11. Conductive rubbers 9A, 9B are stuck opposed to each other to the end of the two arms, the outside of the holding part of the tool gripper 3 for holding a tool which is divided by advancement to the measurement position (a) is surrounded with the conductive rubbers as sandwiching it, and when the conductive rubbers are compressed outside of the tool holding part by exceeding a prescribed compression ratio so as to become conductors, they are judged to have life in an NC device. When the compression quantity is less than a prescribed compression ratio, they are still nonconductors so that they are judged to have no life in the NC device and the life display is performed.

10. 发明专利

JPH05309550A 失效
公开(公告)号：JPH05309550A
公开(公告)日：1993-11-22
申请号：JP41708190
申请日：1990-12-28
申请人： OKUMA MACHINERY WORKS LTD
发明人： TAKESAWA ISAO
IPC分类号： B23Q35/128 , G01B21/00
摘要： PURPOSE:To process the scatter of data read by a noncontact type digitizer in a short time, and thereby increase response speed as well as to simultaneously achieve higher speed and higher accuracy. CONSTITUTION:Output data of one sensor head 9 for the measure surface of one point is read in order in parallel by a plural number of read circuits 12 while being delayed by a definite time interval so as to be stored in each CPU 13, and data thus stored is averaged and processed through operations, so that it is outputted to the side of a NC. Consequently, it is started to read following points.

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