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1. 发明专利

JPH0325299B2 失效
公开(公告)号：JPH0325299B2
公开(公告)日：1991-04-05
申请号：JP5846982
申请日：1982-04-08
申请人： TOYODA MACHINE WORKS LTD
发明人： SHIMIZU NORIHIKO , YAMAKAGE KENJI , HATSUTORI YASUHIRO
IPC分类号： B23Q11/00 , B24B19/12 , G05B9/02 , G05B19/19 , G05B23/02

2. 发明专利

JPS58177260A INTERFERENCE CHECKING DEVICE FOR MACHINE TOOL 失效
公开(公告)号：JPS58177260A
公开(公告)日：1983-10-17
申请号：JP5846982
申请日：1982-04-08
申请人： TOYODA MACHINE WORKS LTD
发明人： SHIMIZU NORIHIKO , YAMAKAGE KENJI , HATSUTORI YASUHIRO
IPC分类号： B23Q11/00 , B24B19/12 , G05B9/02 , G05B19/19 , G05B23/02
摘要： PURPOSE:To prevent interference of a work with tool by calculating the non- interfer ential zone for these two from the work profile data and the tool shape and processing movement data and by judging and confirming the tool position for each processing place. CONSTITUTION:In case a work W, for ex. a cam shaft, is processed by a tool G such as grinder, the tool might have an interference with the adjacent area for processing. In order to process a cam C1, the non-interferential zone in the area of processing is calculated from such data as the position L11 of cam C1, positions L21 and L12 of journal J1 and cam C2 in the adjacent area of processing, their widths B21 and B12, width T of tool G and grinding stroke S. Non- interferential zone is calculated for each processing place, and a judgement and confirmation is made if the tool lies in this zone.

3. 发明专利

JPS578071A DETECTION OF USE LIMIT FOR GRINDING WHEEL OF GRINDER 失效
公开(公告)号：JPS578071A
公开(公告)日：1982-01-16
申请号：JP7694880
申请日：1980-06-06
申请人： TOYODA MACHINE WORKS LTD
发明人： MUNEKATA KENICHI , UNNO KUNIHIKO , SHIMIZU NORIHIKO
IPC分类号： B24B49/18
摘要： PURPOSE:To detect the use limit of the grinding wheel irrespective of the abrasion of a correcting jig by a method wherein the position of the grinding wheel at the time of generation of a speed change signal from a measuring device is detected to ascertain whether or not the detected position of the grinding wheel is remote from the original position thereof. CONSTITUTION:The measuring device 20 is provided on a table 12 of the grinder 10. When a work W is finished to a predetermind size, a speed change singal is generated from the measuring device 20 and a position detector LS detects whether or not a grindstone table 23 has returned to its original position. Further, a digital control device 40 generates pulses to drive circuits 41 and 42 for driving pulse motors 24 and 32 to thereby control the processing of the work W and the correction of the grindstone. When a grind command signal is applied on the digital control device 40 and the forward quick feed of the grinding wheel 22 is started, a signal is generated from a one shot circuit 55 and the moving amount l of the grinding wheel from its original position is detected by a counter 51. Then, the detected moving amount l of the grinding wheel is compared with a reference moving amount lr computed by an operator 50 and a critical detecting signal is generated from the comparator 52.

4. 发明专利

JPS56163878A GRINDING WHEEL FEEDING DEVICE FOR GRINDER 失效
公开(公告)号：JPS56163878A
公开(公告)日：1981-12-16
申请号：JP6583580
申请日：1980-05-16
申请人： TOYODA MACHINE WORKS LTD
发明人： MUNEKATA KENICHI , SHIMIZU NORIHIKO , YONEDA TAKAO , ENOMOTO MINORU
IPC分类号： B24B47/22
摘要： PURPOSE:To improve the workability by securely memorizing a distance data according to a distance from the axis of a work to the axis of a grinding wheel when it is located at a fixed original position so that the replacement of the grinding wheel can be done simply by resetting diameter data of the grinding wheel. CONSTITUTION:An NC control circuit 40 controls the working of a work W and the dressing of a grinding wheel 22 by distributing pulses to driving circuits 41 and 42 adapted to drive servo motors 24 and 32. When the grind stone is changed, an operation unit 45 operates a command switch DRC of the circuit 40 and distributes + pulse to the driving circuit 42 to retract a dressing roll to the rear end until a position detector works. At a stop 131, the position data T memorized in the control data area is preset to a position register DPR for memorizing the tip position of the dressing roll. With the changing of the grinding wheel, a data is memorized to a control data area CDA according to the radius of the grinding wheel thereby enabling the positioning of the dressing roll at the start point.

5. 发明专利

JPS56126574A SAFETY DEVICE FOR FEEDING MOVABLE MOUNT 失效
公开(公告)号：JPS56126574A
公开(公告)日：1981-10-03
申请号：JP2413280
申请日：1980-02-29
申请人： TOYODA MACHINE WORKS LTD
发明人： WADA TATSUJI , MUNEKATA KENICHI , UNNO KUNIHIKO , SHIMIZU NORIHIKO , SUZUKI YASUO
IPC分类号： B23Q5/58 , B23Q5/54 , B24B47/02 , B24B47/20 , B24B55/00 , G05B19/23 , G05B19/416
摘要： PURPOSE:In case of a grinder or the like, to suppress violent movement of a movable mount caused by a feed driving means by coupling the movable mount, performing a feed motion, with a fixed part via a cylinder mechanism which suppresses the feeding speed of the movable mount. CONSTITUTION:Onto a fixed base 1, is equipped, a movable grindstone mount 2 which is driven forward and backward with a screw member 4, feed screw 5 and servo motor 6. In the rear end of the grindstone mount 2, a cylinder 17, piston 18 and piston rod 20 are arranged, then the piston rod 20 is extended through a reference member 25 on the fixed base, while an adapting member 26 and engaging member 27 for controlling movement of the piston 18 are secured to the piston rod 20. Further, across cylinder chambers 17a and 17b, a restrictor 21 and check valve 22 are connected. In this way, even if a trouble is caused in a violet movement preventive circuit 15, feeding of the grindstone mount 2 can be prentented from increasing beyond the 2 speed preset by the restrictor 21.

6. 发明专利

JPS55131454A FEED SPEED CONTROL DEVICE FOR MOVABLE SUPPORT 失效
公开(公告)号：JPS55131454A
公开(公告)日：1980-10-13
申请号：JP3639479
申请日：1979-03-28
申请人： TOYODA MACHINE WORKS LTD
发明人： NISHIMURA HIDEO , TOKURA YASUFUMI , UNNO KUNIHIKO , ENOMOTO MINORU , YOKOE ISAMU , SHIMIZU NORIHIKO , OOMURA HARUO
IPC分类号： B23Q5/58 , B23Q5/22 , B24B49/10 , G05B19/21 , G05B19/4062 , G05D3/00
摘要： PURPOSE:To prevent a tool and a work from being damaged and a worker from being hurt during a grinding operation, by ascertaining before a tool has come into contact with a work that the feed speed of a movable support is reduced to a sufficient level. CONSTITUTION:A servomotor 13 is provided with a speed detector 14 adapted to detect the speed of movement of a grinding head 10 with reference to the rotational speed of the servomotor. A movable plate 16 disposed below a bed 11 is provided with a limit switch LS1 for use in detecting the original position of the grinding head 10 and a limit switch LS2 for use in detecting the passage of the grinding head 10 at a speed measuring point set in the vicinity of a quick feed terminal position. An ascertaining operation is conducted to make sure that the grinding head 10 is moved at a speed not higher than a predetermined speed which is lower than a quick feed speed. When the speed of the grinding head 10 is not reduced to a sufficiently low level, an abnormality signal is output to stop the servomotor 13.

7. 发明专利

JPS6246883B2 失效
公开(公告)号：JPS6246883B2
公开(公告)日：1987-10-05
申请号：JP11514780
申请日：1980-08-20
申请人： TOYODA MACHINE WORKS LTD
发明人： MUNEKATA KENICHI , SHIMIZU NORIHIKO , SAKAKIBARA YASUJI
IPC分类号： B24B47/20 , G05B19/19 , G05B19/4061

8. 发明专利

JPS578072A DETECTION OF USE LIMIT OF GRINDING WHEEL OF GRINDER 失效
公开(公告)号：JPS578072A
公开(公告)日：1982-01-16
申请号：JP8244780
申请日：1980-06-18
申请人： TOYODA MACHINE WORKS LTD
发明人： MUNEKATA KENICHI , UNNO KUNIHIKO , SHIMIZU NORIHIKO
IPC分类号： B24B49/18
摘要： PURPOSE:To detect the use limit of the grinding wheel irrespective of the abrasion of a correcting jig by a method wherein the moving amount of the correcting jig from a reference position up to its advanced end is detected and the use limit of the grinding wheel is detected by the moving amount of the correcting jig and the total amount of abrasion thereof. CONSTITUTION:A support shaft 29 is rotatably supported on a head 28 in parallel relationship with the grinding surface of the grinding wheel 16 and a truing wheel 30 serving as the correcting jig is fixed to one end of the support shaft 29. Further, a recessed shaft 48 is inserted into a support member 47 for a slide base 32 which is integral with the head 28 and a block 51 is fixed to the shaft 48. In addition, one end of the block 51 is attached with a contact sensing bar 52 and an oscillation detector 53. When the contact sensing bar 52 comes into contact with the outer peripheral surface of the grinding wheel 16, a contact detection signal is generated from a discrimination circuit to a digital control device which generates an output data corresponding to the amount of abrasion of the truing wheel 30 and the operation of the total amount of the wheel 30 and the operation for detecting the use limit of the grinding wheel 16 are performed.

9. 发明专利

JPS56129912A NUMERICAL CONTROLLER 失效
公开(公告)号：JPS56129912A
公开(公告)日：1981-10-12
申请号：JP3304580
申请日：1980-03-14
申请人： TOYODA MACHINE WORKS LTD
发明人： MUNEKATA KENICHI , UNNO KUNIHIKO , SHIMIZU NORIHIKO , ENOMOTO MINORU
IPC分类号： G05B19/18 , G05B19/404 , G05B19/4093 , G05B19/416 , G05B19/407
摘要： PURPOSE:To enable to correct the feeding speed data simply in a short time, by the data correction of feed speed data stored in the memory according to the override value. CONSTITUTION:A work W is ground at a grinding machine by the numeric control instruction, and the work W is clipped between the main spindle 13 and the tail spindle 14. On the other hand, the numeric controller 20 distributes pulses to the driving circuit 21 driving the servomotor 18 to move the tool 16. Further, the processing of pulse distribution is made by reading in the override value of override setters 30-32, the feeding speed data read out from the storage areas df1-dfn is corrected by it and the feeding speed corrected is set to the speed register FR. Thus, the correction of speed data can simply be made in a short time, by only operating the designation switch through the setting of the override value.

10. 发明专利

JPH0479787B2 失效
公开(公告)号：JPH0479787B2
公开(公告)日：1992-12-16
申请号：JP7172782
申请日：1982-04-29
申请人： TOYODA MACHINE WORKS LTD
发明人： KOIDE TSUYOSHI , SHIMIZU NORIHIKO , KOMATSU JUICHIRO , MARUYAMA TOSHIO
IPC分类号： B23Q15/08 , B24B19/12 , B24B47/20

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