Double side grinding apparatus and double side polishing apparat

Details Double side grinding apparatus and double side polishing apparat Double side grinding apparatus and double side polishing apparat

1999-02-18

2000-12-26

Rachuba, M.

Abrading

Machine

Rotary tool

B24B 700

Patent

active

061650544

ABSTRACT:
A double side grinding apparatus and a double side polishing apparatus, with a narrow tolerance range, reduces pitching errors, and ensures a sufficient level of rigidity against the force of reaction to machining, while enhancing positioning accuracy. The double side grinding apparatus or a double side polishing apparatus includes a plurality of guideways for supporting and shifting main spindles, and these plural guideways on end define a geometric center matched with the center of gravity of the main spindles. The number of the guideways is preferably three in order not to obstruct the mounting and removal of a workpiece.

REFERENCES:
patent: 3736818 (1973-06-01), Ennis
patent: 3783718 (1974-01-01), Kuhne et al.
patent: 4198183 (1980-04-01), Kummer et al.
patent: 4546573 (1985-10-01), Shiba et al.
patent: 4604833 (1986-08-01), Kimura et al.
patent: 4763448 (1988-08-01), Yoshioka et al.
patent: 5906535 (1999-05-01), Tonooka et al.

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