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1. 发明专利

JPH10235545A MULTI-PROCESS GRINDING MACHINE 失效
公开(公告)号：JPH10235545A
公开(公告)日：1998-09-08
申请号：JP5983497
申请日：1997-02-26
申请人： KOYO MACHINE IND CO LTD
发明人： SASAKURA SHIZUKI , UCHIDA ATSUSHI , KINOSHITA HIROSHI
IPC分类号： B24B25/00 , B23Q39/04 , B24B19/02 , B24B41/04 , B24B41/06 , B24B49/00
摘要： PROBLEM TO BE SOLVED: To provide a multi-process grinding machine that is able to sharply sorten an overall machining time inclusive of a span of grinding time, and to efficiently grind a workpiece speedily in a highly accurate manner. SOLUTION: This multi-process grinding machine is equipped with two spindle units 41 and 42 with each work chyck 50 tochuck a workpiece 3, and a swiveling table 43 supporting these to spindle units 41 and 42 and indexing and swiveling so as to make these spindle units 41 and 42 correspond to each of two working positions P1 and P2, respectively. In this constitution, it is composed of setting up plural kinds of grinding attachments 44, 46 and 47 separately in these working positions P1 and P2 so as togrind each of different grinding part of the workpiece 3, and also a loader unit 45 to attach or detach the workpiece 3 to or from the work chuck 50 of the spindle unit 41 at the side of the working position P1, at this position P1 where there is the grinding attachment 44 being the shortest in the grinding time, respectively.

2. 发明专利

JP2001179625A METHOD AND DEVICE FOR COOLING GRINDING WHEEL CORRECTING DEVICE ON GRINDER 失效
公开(公告)号：JP2001179625A
公开(公告)日：2001-07-03
申请号：JP37439399
申请日：1999-12-28
申请人： KOYO MACHINE IND CO LTD
发明人： SASAKURA SHIZUKI
IPC分类号： B24B53/095 , B24B55/02
摘要： PROBLEM TO BE SOLVED: To provide a technology for efficiently cooling a portion dressed by a rotary diamond when the grinding wheel end face of a grinding wheel is dressed by the rotary diamond. SOLUTION: When the grinding wheel end face 2b of the grinding wheel 2 is dressed by the rotary diamond 3, a coolant C from a coolant supply nozzle 11 is guided along a coolant guide portion 12 of the rotary diamond 3 opposed to the grinding wheel end face 2b and supplied to a contact point P2 between the rotary diamond 3 and the grinding wheel end face 3b. The rotating motion of the rotary diamond 3 gives centrifugal force to the coolant C, while the rotating grinding wheel 2 and the rotary diamond 3 forms no barriers to the supplied coolant, ensuring arrival of the most part at the contact point P2.

3. 发明专利

JPH10138139A LIQUID COOLANT DISCHARGE DEVICE FOR CENTERLESS GRINDING MACHINE 失效
公开(公告)号：JPH10138139A
公开(公告)日：1998-05-26
申请号：JP31543596
申请日：1996-11-11
申请人： KOYO MACHINE IND CO LTD
发明人： SASAKURA SHIZUKI
IPC分类号： B24B55/02
摘要： PROBLEM TO BE SOLVED: To provide a liquid coolant discharge device that can suppress transmission of coolant heat to a bed and mechanical components of a grinding machine lower than before. SOLUTION: Scattered liquid coolant falls with the lapse of time, and is guided by covering members 11a, 11b and stored in an opening part 21a. The stored liquid coolant flows out of a liquid discharge hole 21b down to a liquid discharge means 3 positioned below, and led to a liquid coolant discharge port by the liquid discharge means 3. In this case, since the liquid discharge means 3 is disposed through an air layer so as not to come in contact with a bed 4, this air layer serves as a heat insulator, so that heat of liquid coolant flowing through the liquid discharge means 3 is not transmitted to the bed 4.

4. 发明专利

JPH09277168A GRINDING WHEEL SHAPE CORRECTION METHOD 失效
公开(公告)号：JPH09277168A
公开(公告)日：1997-10-28
申请号：JP11558796
申请日：1996-04-12
申请人： KOYO MACHINE IND CO LTD
发明人： UEDA KOICHI , SASAKURA SHIZUKI
IPC分类号： B24B53/00 , B24B53/08 , B24D5/02
摘要： PROBLEM TO BE SOLVED: To provide a truing method for a grinding wheel which may have deviated shaping caused by centrifugal expansion in the case of use at a high peripheral speed, thus attaining desired processing accuracy. SOLUTION: By estimating deviated shaping due to the centrifugal expansion of a grinding wheel 1 during processing a work, or centrifugal expansion amount (ΔRa ) at respective positions from the surface of a grinding element 2 by means of previous actual measurement or calculation, in-feed correction (in-feed amount ΔRb ) is provided for the grinding element 2 according to the deviated shape at the time of truing the grinding wheel 1. The deviated shape due to the centrifugal expansion of the grinding wheel 1 generated during processing the work is compensated to provide desired processing accuracy during processing the work.

5. 发明专利

JP2002036078A DOUBLE FACE GRINDING DEVICE FOR THIN DISK WORK 审中-公开
公开(公告)号：JP2002036078A
公开(公告)日：2002-02-05
申请号：JP2001190788
申请日：2001-06-25
申请人： KOYO MACHINE IND CO LTD
发明人： SASAKURA SHIZUKI , YOSHIMURA YASUO , UEDA KOICHI
IPC分类号： B23Q3/06 , B24B7/17
摘要： PROBLEM TO BE SOLVED: To provide a device capable of simultaneously and easily grinding both the faces of a thin disk work with a high machining quality and capable of reducing the size thereof. SOLUTION: This double face grinding device comprises a pair of grinding wheels 9, a work self-rotating means supportedly self-rotating a work W on a grinding position between grinding faces 9 so that the both ground surfaces of the work W face the ground faces 9a of the pair of stones 9, the outer periphery of the work W crosses the outer periphery of the ground faces 9a, and the center of the work W is positioned in the ground faces 9a, and a work storage and retrieval means. The self-rotating means comprises a static pressure type axial supporting means for supplying fluid to both machined surfaces of the work at the portion extended to the outside from a clearance between the stones to axially support the work W by the static pressure of the fluid in the state of non-contact with each other. The storage and retrieval means feeds the work W to a grinding position where the work W is supported by the static pressure type axial supporting means in the state of non-contact with each other, and carries out the work W from the grinding position.

6. 发明专利

JP2001001243A METHOD AND DEVICE FOR CHAMFERING OUTER CIRCUMFERENTIAL PORTION OF THIN DISKLIKE WORK 失效
公开(公告)号：JP2001001243A
公开(公告)日：2001-01-09
申请号：JP17200999
申请日：1999-06-18
申请人： KOYO MACHINE IND CO LTD
发明人： KINOSHITA HIROSHI , UEDA KOICHI , SASAKURA SHIZUKI
IPC分类号： B24B9/00 , H01L21/304
摘要： PROBLEM TO BE SOLVED: To provide a compact and inexpensive device for chamfering an outer circumferential portion of a thin disklike work to carry out a method for chamfering the outer circumferential portion of the thin disk-like work with short chamfering time. SOLUTION: In this device for chamfering an outer circumferential portion of a thin disklike work, a thin disk-like work W is rotated about its axis, an outer circumferential surface of a grinding wheel 1 is pressed against the outer circumferential surface of the work while the columnar grinding wheel 1 is rotated about its axis to chamfer the outer circumferential part of the work W. A groove 2 is formed over the whole length of the outer circumferential surface of the grinding wheel 1. The groove 2 is smaller toward a bottom, and a bottom surface of the groove 2 is of a recessed curved surface. The work W and the grinding wheel 1 are arranged so that the axis Sw of the work W is located on one of two parallel planes, and the axis S1 of the grinding wheel 1 is located on the other, and both axes are not parallel to each other. A driving device to adjust the distance between the axis Sw of the work W and the axis S1 of the grinding wheel 1 is provided.

7. 发明专利

JPH02109682A MEASUREMENT OF DIMENSION OF WORK 失效
公开(公告)号：JPH02109682A
公开(公告)日：1990-04-23
申请号：JP26263588
申请日：1988-10-18
申请人： KOYO MACHINE IND CO LTD
发明人： INOKUCHI HISAYOSHI , SASAKURA SHIZUKI , ITO SHIGERU
IPC分类号： G01B21/20 , B23Q17/22 , B24B49/00 , G01B21/00
摘要： PURPOSE:To accurately measure the length of a work even if there is a thermal displacement, etc., by measuring a reference face for measuring dimension and finding the length based on the measuring value of the end face to be measured of a work and this measuring value of the reference face. CONSTITUTION:In the state of a work W being not held on a chuck in advance, the measuring part of a dimension measuring probe 30 is brought into contact with the reference face for measuring dimension and the chuck surface and these positions are measured. Based on these measuring results, the chuck projection amt. from the reference face for measuring dimension to the chuck surface is found and stored, and at the length measuring time, the measuring part of the probe 30 is brought into contact with the reference face for measuring dimension and the end face to be measured of a work W and these positions are measured. Based on these measuring results the distance from the dimension measuring reference face to the end face to be measured of the work is found and based on the measuring result of this distance and the chuck projection amt. stored in advance the length from the chuck surface of the work to the end face to be measured is found.

8. 发明专利

JPH02109673A MULTI-STAGE GRINDING DEVICE 失效
公开(公告)号：JPH02109673A
公开(公告)日：1990-04-23
申请号：JP26263388
申请日：1988-10-18
申请人： KOYO MACHINE IND CO LTD
发明人： INOKUCHI HISAYOSHI , SASAKURA SHIZUKI , ITO SHIGERU
IPC分类号： B24B5/06 , B24B7/16 , B24B19/02 , B24B25/00
摘要： PURPOSE:To improve working accuracy and to increase working efficiency by arranging a main shaft base table moved in a 1st horizontal direction parallel to the axial line of a work and in a 2nd horizontal direction orthogonal therewith and a turret head revolved centering around the shaft parallel to the 2nd horizontal direction and fitted with plural grindstones. CONSTITUTION:Multistage grinding is performed by changing grindstone 27-29 by revolving a turret head 22. In this case, the revolving center shaft of the turret head 22 is orthogonal with the axial line of the work W held on the main shaft base 6 of the main shaft base table 3 above, so the revolving direction of the turret head 22 becomes in the tangent direction of the work W and the positional dispersement by the revolving of the turret head 22 is generated in the revolving direction. So that, the positional dispersement of the turret head 22 becomes in the tangent direction of the work W and the positional dispersion of the turret head 22 in the radial direction of the work W giving effect on the work working accuracy is reduced. Consequently, the working accuracy can be improved.

9. 发明专利

JP2001179626A COOLANT NOZZLE DEVICE FOR DRESSER 失效
公开(公告)号：JP2001179626A
公开(公告)日：2001-07-03
申请号：JP36477099
申请日：1999-12-22
申请人： KOYO MACHINE IND CO LTD
发明人： SASAKURA SHIZUKI
IPC分类号： B24B53/095 , B24B53/047 , B24B55/02
摘要： PROBLEM TO BE SOLVED: To provide a coolant nozzle for a dresser, capable of supplying a coolant to the diamond side at the end of the dresser for efficiently cooling the whole dresser including the dressing portion side. SOLUTION: The coolant nozzle for the dresser has a guide plane at the end of a nozzle body for guiding the coolant to the diamond at the end of the dresser.

10. 发明专利

JP2001087994A COLUMNAR GRINDING METHOD FOR PRISM WORK AND CENTERLESS GRINDER FOR PRISM WORK PROCESSING 失效
公开(公告)号：JP2001087994A
公开(公告)日：2001-04-03
申请号：JP26672999
申请日：1999-09-21
申请人： KOYO MACHINE IND CO LTD
发明人： TSUDA HIROKATSU , SASAKURA SHIZUKI , YASHIKI KATSUJI
IPC分类号： B24B5/18
摘要： PROBLEM TO BE SOLVED: To provide a centerless grinding method and a centerless grinder capable of grinding a prism work into a column accurately. SOLUTION: A guide member 11 has a round through hole 11a in the center and guides a prism work W inserted into the round hole 11a to the gap between a grinding whetstone 2 and an adjusting whetstone 3. The guide member 11 is supported rotatably by supporting means 14 and 15 and rotated by rotating means 19 and 20 so that the work in the round hole 11a is rotated round the axis. By a feeding means 21 the work W is pushed out to the grinding position so that it undergoes a through-feed grinding to be shaped into a column. As the work W is free of restriction about its rotating direction, no distortion such as twisting is generated at the time of through-feed grinding.

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