Both-side grinding method and both-side grinding machine for...

Details Both-side grinding method and both-side grinding machine for... Both-side grinding method and both-side grinding machine for...

2006-12-19

2006-12-19

Wilson, Lee D. (Department: 3723)

Abrading

Precision device or process - or with condition responsive...

With indicating

C451S268000, C451S397000, C451S009000, C451S262000

Reexamination Certificate

active

07150674

ABSTRACT:
Detecting the deviation of the grinding wheel position from the amount of work deformation after grinding, and correctly adjusting the grinding wheel position, it provides both-side grinding techniques for making the work excellent in flatness and parallelism. When the feeding operation of grinding wheels (1,2) is completed, the distances from hydrostatic pads (20, 21) to the surface and back of work (W) are measured at three points, and the deformation amount of work (W) is detected from the results of measurement at the three points by using air gauge sensors (Sa, Sb, Sc), and in case the calculated amount of deformation exceeds the specified value, the moving adjustment of grinding wheels (1, 2) is performed in accordance with the amount of deformation so that work (W) is flat without deformation when the feeding operation of grinding wheels (1, 2) is completed.

REFERENCES:
patent: 5816895 (1998-10-01), Honda
patent: 5989108 (1999-11-01), Ikeda et al.
patent: 6652358 (2003-11-01), Ikeda et al.
patent: 6726525 (2004-04-01), Kato et al.
patent: 2003/0104698 (2003-06-01), Taniguchi et al.
patent: 2003/0173017 (2003-09-01), Hecht et al.
patent: 09262747 (1997-10-01), None
patent: 11-198009 (1999-07-01), None
patent: 11-239956 (1999-09-01), None
patent: 11-239956 (1999-09-01), None
patent: 2001-062718 (2001-03-01), None
PCT International Search Report for PCT/JP02/10493 mailed on Nov. 19, 2002.

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