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1. 发明专利

JPH03154778A DRESSING METHOD FOR GRINDING GRINDSTONE 失效
公开(公告)号：JPH03154778A
公开(公告)日：1991-07-02
申请号：JP29165989
申请日：1989-11-09
申请人： KOYO MACHINE IND CO LTD
发明人： INOKUCHI HISAYOSHI , SASAKURA YASUKI , ITO SHIGERU
IPC分类号： B24B53/08
摘要： PURPOSE:To form both of a center projecting curvature shape and center recessed curvature shape with one dressing device, by changing gradually the size of the radius of curvature automatically by the part corresponding to the forming notch quantity per once allowed for a dressing tool and forming a grinding grindwheel. CONSTITUTION:The tip of a dressing tool 22 is made to perform the circular motion of an optional radius of curvature by executing the numerical control of the movement in the 1st and 2nd axial directions of the dressing tool 22 and the revolving around the 3rd axis. The both of a center projecting curvature shape and center recessed curvature shape can therefore be formed with one dressing device and a cylindrical face may be formed at both sides of the curvature shape as well. Also, even in case of forming a center projecting curvature shape, it is unnecessary to make a grindwheel 14 coming into the part of the revolving shaft of the dressing tool 22, the span of the revolving shaft supporting bearing 21 of the dressing tool 22 can be shortened, even in case of the diameter of the grindwheel 14 becoming larger, the rigidity is made higher and a space saving can be realized.

2. 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.

3. 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.

4. 发明专利

JPH02109660A CENTERING METHOD FOR PROBE OF DIMENSION MEASUREMENT 失效
公开(公告)号：JPH02109660A
公开(公告)日：1990-04-23
申请号：JP26263488
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： G01B5/00 , B23Q17/22 , B25H7/00
摘要： PURPOSE:To easily adjust the center height by moving a turret base and the block for setting relatively to a prestored position at the time when a dimension measuring probe is changed and adjusting the measuring part of the probe so as to be in contact with the setting block. CONSTITUTION:In the state of locating at set position the work dimension measuring device 26 that the center height of the measuring part of a dimension measuring probe 30 is adjusted, the relative position in a 2nd horizontal direction of the turret base 21 and setting block 55 of the time when the measuring part is brought into contact with the setting block 55 is stored as a probe set value. Then at the time when the dimension measuring probe 30 is changed, in the state of locating at set position the work dimension measuring device 26, the relative position in the 2nd horizontal direction of the turret base 21 and setting block 55 becomes a probe set value. Then, the adjustment of the center height is enabled by adjusting the position of the measuring part to the relative position in the 2nd horizontal direction and a turret head 22 so that the measuring part of the dimension measuring probe 30 is brought into contact with the setting block 55.

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