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1. 发明专利

JPH09323243A GRINDING METHOD 失效
公开(公告)号：JPH09323243A
公开(公告)日：1997-12-16
申请号：JP14451296
申请日：1996-06-06
申请人： TOYODA MACHINE WORKS LTD
发明人： WAKAZONO YOSHIO , KOBAYASHI HISANOBU
IPC分类号： B24B5/00 , B24B49/03
摘要： PROBLEM TO BE SOLVED: To make highly accurate face grinding so as to be performable by controlling the width size data of a grinding wheel even if truing for renewing this width size data of the grinding wheel is not carried out. SOLUTION: Both end faces of a workpiece are ground by both end faces of a grinding wheel with the width size data of this prestored grinding wheel (S130), a distance between both these end faces of the ground workpiece is measured (S132), the width size data of the prestored grinding wheel is compensated on the basis of this measured distance (S134), and then the next time face grinding is made so as to be done with the compensated wheel's width size data (S135).

2. 发明专利

JPH0938861A GRINDING WHEEL COVER DEVICE 失效
公开(公告)号：JPH0938861A
公开(公告)日：1997-02-10
申请号：JP19025695
申请日：1995-07-26
申请人： TOYODA MACHINE WORKS LTD
发明人： HORI NOBUMITSU , WAKAZONO YOSHIO , NAYA TOSHIAKI , KOBAYASHI HISANOBU , KATOU TOMONORI
IPC分类号： B24B55/04
摘要： PROBLEM TO BE SOLVED: To open and close a movable grinding wheel cover without removing a pipe for supplying coolant by providing a swivel joint for rotating a pipe with a nozzle, which is integral with the movable grinding wheel cover, coaxially with a rotary shaft of the movable grinding wheel cover. SOLUTION: An exit aperture 25b of a swivel joint 25 arranged coaxially with a rotary shaft of a movable grinding wheel cover 12 rotates as well as the movable grinding wheel cover 12 when the movable grinding wheel cover is opened in the case where a grinding wheel 30 is replaced. Whereby, a second pipe 22, a second pipe block 24 and a first nozzle 26 coupled with the swivel joint 25b are rotated integrally with the movable grinding wheel cover 12 and the movable grinding wheel cover 12 when fully opened to an angle necessary for replacing of the grinding wheel 30. At this time, a first pipe 21 for supplying coolant is not removed.

3. 发明专利

JPH0911128A WHEEL CORRECTING DEVICE 失效
公开(公告)号：JPH0911128A
公开(公告)日：1997-01-14
申请号：JP18221595
申请日：1995-06-27
申请人： TOYODA MACHINE WORKS LTD
发明人： IMAI TOMOYASU , MUKAI RYOHEI , WAKAZONO YOSHIO , KOBAYASHI HISANOBU
IPC分类号： B24B53/00 , B24B53/08
摘要： PURPOSE: To automate correction of a magnet by correcting the magnet face based on the movement quantity which is formed by adding the correction quantity data of respective magnets based on the relative movement contact position data of respective magnet faces and renewing the data of the magnet diameter and width at every correction of the magnet. CONSTITUTION: A magnetic wheel 7 and a magnet corrector 10 correct the surface of the grinding face of the grinding wheel 7, which relatively moves so as to be approached /separated from the corrector 10 by motor drive circuits 23, 24, under the control of a numerical controller 30. When the magnet face of the grinding wheel 7 and a contact counterface are contacted with each other and the contact is detected by a contact detector 12, in their contacting, the relative movement contact position data between the magnet wheel 7 and the magnet corrector 10 is stored in a memory 32. After the contact counterpart of the contact detector 12 and the magnetic face are separated, the magnet correcting tool (truer) 13 and the magnet face approach to each other and this approach movement is controlled based on the relative movement contact position data, the correction quantity data, etc., which are stored beforehand.

4. 发明专利

JPH1133892A MACHINE TOOL WITH A PAIR OF REST DEVICES 失效
公开(公告)号：JPH1133892A
公开(公告)日：1999-02-09
申请号：JP19985897
申请日：1997-07-25
申请人： TOYODA MACHINE WORKS LTD
发明人： OTA HIROSHI , INOUE KATSUHARU , KAKO NORIMITSU , KOBAYASHI HISANOBU
IPC分类号： B23Q1/00 , B23Q1/76 , B24B19/12 , B24B41/06
摘要： PROBLEM TO BE SOLVED: To provide a rest device system which can support a processing place or cylindrical parts at its two ends with a high rigidity and which gives a large flexibility with a large versatility. SOLUTION: A table 14 on which a pair of work supporting devices 20 and 21 are placed, is provided in such a way as capable of indexing in the longitudinal direction, and at least one of the processing parts C1-C8 on a work W whose two ends are supported rotatably by the devices 20 and 21 is selectively indexed to the front face of a tool G. In this machine tool, a pair of rest devices 51 and 52 are furnished on the table 14 with possibility of locational indexing individually in their longitudinal direction, and it is arranged so that the journal parts at the ends of each processing part can be supported by the rest devices 51 and 52. Feed screws 36a and 36b to make locational feeding of the rest devices 51 and 52 are threaded through a tunnel 32 formed in one of the work supporting devices 21, extended to the back surface of the supporting device 21, and there coupled with servo motors for driving 46a and 46b.

5. 发明专利

JPH0760602A BEARING DEVICE 失效
公开(公告)号：JPH0760602A
公开(公告)日：1995-03-07
申请号：JP21039793
申请日：1993-08-25
申请人： TOYODA MACHINE WORKS LTD
发明人： NAKANE YASUMASA , KOBAYASHI HISANOBU
IPC分类号： B23Q11/12 , F16C25/08 , F16C33/66
摘要： PURPOSE:To keep rigidity of a main shaft, improve accuracy, and improve performance of the main shaft by avoiding oil air coming out of a nozzle pas sage of an oil air supply device from colliding directly with a vertical surface to the shaft direction of a bearing case as a jet, and holding a bearing always in a prescribed pre-load. CONSTITUTION:In a housing, an oil air supply device 22 having a nozzle passage 23 to supply oil air is arranged in an oil air supply passage 13 of a bearing case 14 having an oil air supply passage 13 through a stroke bearing 17, and a supply passage 24, which is communicated with the tip part of the nozzle passage 13 and is bored in the oil air supply device 22 in the direction perpendicular to the axial direction, is arranged.

6. 发明专利

JPH06170688A SLIDE COVER DEVICE 失效
公开(公告)号：JPH06170688A
公开(公告)日：1994-06-21
申请号：JP32412292
申请日：1992-12-03
申请人： TOYODA MACHINE WORKS LTD
发明人： OTA NORIO , SUGIYAMA KAZUHISA , NAKAMURA HISASHI , WAKAZONO YOSHIO , NAYA TOSHIAKI , WATANABE YASUHISA , KOBAYASHI HISANOBU
IPC分类号： B23Q11/08
摘要： PURPOSE:To prevent a coolant, sprung by a coolant pan, from infiltrating into a slide cover device. CONSTITUTION:A plurality of covers 51 to 55 are stored in a nest shape, and each cover 51 to 55 has the third plate part 62 provided in the diagonal downward of sliding surfaces 13, 14. A block 71 is fixed in parallel to a moving direction of a table 20 further adjacent to an internal surface of the third plate part 62, to a side surface of a table guide part 12.

7. 发明专利

JPH0679624A GRINDING WHEEL TRUING DEVICE 失效
公开(公告)号：JPH0679624A
公开(公告)日：1994-03-22
申请号：JP22837992
申请日：1992-08-27
申请人： TOYODA MACHINE WORKS LTD
发明人： IMAI TOMOYASU , MUKAI RYOHEI , KOBAYASHI HISANOBU , WAKAZONO YOSHIO , WATANABE YASUHISA
IPC分类号： B24B49/18 , B24B53/00 , B24B53/06
摘要： PURPOSE:To provide a grinding wheel truing device, which can true a grinding wheel without receiving the bad influence of backlash or the like, by eliminating the reversal of a grinding wheel in the moving direction during the truing operation. CONSTITUTION:A grinding surface 1a, which has a semi-circular cross section, of a grinding wheel 1, of which maximum outer diameter exists in the central part of the axial direction, is cut from the left side edge of the grinding wheel 1 to the central part of the axial direction by the turn of a truing roll 2 and the movement and the lowering of the grinding wheel 1 in the axial direction on the basis of a first truing program 51 provided in a memory device 31 of a numerically controlled device 31, and thereafter, the grinding surface 1a is cut from the right side edge of the grinding wheel 1 to the central part in the axial direction by the turn of the truing roll 2 and the movement and the lowering of the grinding wheel 1 in the axial direction on the basis of a second truing program. Reversal of the grinding wheel 1 in the moving direction during the truing operation is eliminated by dividing one time of truing operation of the grinding surface 1a into a left side part and a right side part.

8. 发明专利

JP2000033529A MAIN SHAFT DEVICE 失效
公开(公告)号：JP2000033529A
公开(公告)日：2000-02-02
申请号：JP20181498
申请日：1998-07-16
申请人： TOYODA MACHINE WORKS LTD
发明人： SHINNO YASUO , HORI NOBUMITSU , KOBAYASHI HISANOBU , MIZUNO MIKI
IPC分类号： B23Q5/04 , B23Q5/54 , B24B41/04
摘要： PROBLEM TO BE SOLVED: To provide a main shaft device facilitating maintenance and inspection, allowing the use of a compact brake device and a general-purpose encoder, and facilitating the exchange of parts without prolonging a main shaft. SOLUTION: An auxiliary shaft 84 is rotatably supported in parallel with a main shaft 20, and the rotation of the main shaft 20 is transmitted to the auxiliary shaft 84 through a transmission gear 82 and a gear 86. An electromagnetic brake 92 and an encoder 94 are attached to an end part of the auxiliary shaft 84. Since a braking force acts on the main shaft 20 by operating the electromagnetic brake 92 it is unnecessary to provide a brake means having a large diameter in an intermediate part of the main shaft 20. Moreover, since the encoder 94 is not attached to the intermediate part of the main shaft 20 but is attached to the end part of the auxiliary shaft 84, it is unnecessary to use an encoder having a special shape. Furthermore, it is possible to shorten a total length of the main shaft 20 and facilitate maintenance and inspection works because it is attached to the end part of the auxiliary shaft 84.

9. 发明专利

JPH11300565A BRAKING METHOD OF SYNCHRONOUS DRIVE DEVICE, AND SYNCHRONOUS DRIVE DEVICE 失效
公开(公告)号：JPH11300565A
公开(公告)日：1999-11-02
申请号：JP11256598
申请日：1998-04-22
申请人： TOYODA MACHINE WORKS LTD
发明人： HORI NOBUMITSU , KOBAYASHI HISANOBU
IPC分类号： B23Q5/10 , B23Q5/54 , B23Q5/58 , B24B41/06 , B24B47/12 , H02P5/00 , H02P7/67
摘要： PROBLEM TO BE SOLVED: To dispense with a security shaft, suppress the synchronous deviation when an abnormality occurs, and rapidly stop a work. SOLUTION: When an abnormal condition to trouble the synchronous control of the rotation of two spindles is generated, a dynamic brake is applied to servo motors 36R, 36L by dynamic brake mechanisms 58L, 58R of servo amplifiers 48L, 48R. A PLC device 56 controls electromagnetic brakes 42R, 42L in a delayed manner after the application of the dynamic brake, and applies the electromagnetic brake to spindles 20R, 20L. Thus, only a small differential braking torque is applied to a work by the dynamic brake, and the spindles 20R, 20L are synchronized by the rigidity of the work. Since the electromagnetic brake is applied when the rotational speed of the spindles is reduced, no pounding is generated. Even when a security shaft is thus dispensed with, no large torsion is applied to the work, and the work can be stopped.

10. 发明专利

JPH10291158A SIZING DEVICE OF CRANKSHAFT FINISHING MACHINE 失效
公开(公告)号：JPH10291158A
公开(公告)日：1998-11-04
申请号：JP11417197
申请日：1997-04-17
申请人： TOYODA MACHINE WORKS LTD
发明人： KOBAYASHI HISANOBU
IPC分类号： B24B49/04
摘要： PROBLEM TO BE SOLVED: To provide a sizing device of small and simple structure in which any extra load is not applied to a detecting means and measurement contact positions are kept unchanged. SOLUTION: The sizing device of a crankshaft finishing machine comprises a supporting table 4 provided so that it can be moved in the forward and backward directions at a position opposed to the crank pin P of a crankshaft S, detecting parts 20 and 21 provided on the supporting table 4 so that it can be displaced two-dimensionally on a plane vertical to the axis of the crankshaft S and an eccentric part 19 which is installed eccentrically on a rotating body 18 rotated in synchronous with the crankshaft S about a rotating axis in parallel with the axis of the crankshaft S in order to use, as a detection part, a revolution of the same diameter in synchronous with the revolving crank pin P and which engaged with that detection part. After a detection means is engaged with the crank pin P, the eccentric part of the rotating body is revolved in synchronous with the revolving of the crank pin P. Thus the diameter of the crank pin P during working is detected while the engagement of the detection means and the crank pin P is maintained.

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