Abrasive machining assembly

Details Abrasive machining assembly Abrasive machining assembly

1996-10-09

1998-02-17

Rose, Robert A.

Abrading

Abrading process

Glass or stone abrading

451247, 451292, 451285, 451286, 451287, B24B 500

Patent

active

057186197

ABSTRACT:
An abrasive machining assembly (10) wherein a worktable (14) is rotatably supported on a frame (12) for rotation about a table axis (A) and a plurality of platens (32) are supported on the worktable (14) with each of the platens (32) being adapted for supporting a workpiece to be machined by a machining disc (38) rotating about a tool axis (B). Each platen (32) is rotatably supported for rotation about a platen axis (C) which is radially spaced from the table axis (A) a different distance than the tool axis (B) whereby each of the platens (32) rotates about a platen axis (C) which is parallel to and offset from the tool axis (B) when positioned in the workstation. The assembly is characterized by a drive mechanism for selective driving engagement with the workstation platen (32) to rotate the workstation platen (32) and for disengaging the workstation platen (32) during the indexing of the worktable (14) to move the workstation platen (32) out of the workstation while moving another platen (32) into the workstation. This drive mechanism comprises a vertically movable shaft (56) which is rotated by a pulley (70) and selectively moved up and down by a pneumatic actuator (64) to engage and disengage the workstation platen (32).

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