Polisher

Details Polisher Polisher

B - Operations, Transporting

24

B

B24B 21/00 (2006.01)

Patent

CA 2092200

2092200 9205013 PCTABS00011 A polishing apparatus (10) comprises a main arm (12) mounted for horizontal and vertical movement. The arm (12) is provided with a rotating belt (32) of abrasive material for polishing purposes. An article to be polished, for example a dished end is mounted on a table drive (24). The arm (12) carries an X-Y plate (28) including a contact wheel (30) movable relative to the arm (12) along two orthogonal axes. Cylinders (38, 40) bias the contact wheel toward the article to be polished. In use, the arm (12) is swept across the radius of the dished end so as to "map" the profile to be polished and thereafter the arm (12) follows this profile at a preset "off-set" of 50-75 millimetres. Minor irregularities of the surface are "ridden" by the X-Y plate (28) against the constant bias of the pneumatic cylinder without being ground away.

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