Grinder attachment for precision grinding machines

Abrading – Attachment

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B24B 100

Patent

active

06053804&

ABSTRACT:
A grinder attachment for precision grinding with an existing grinding machine having an external housing and a driven shaft rotatable about a grinding machine axis at a predetermined rotational speed when energized includes a driving pulley wheel having a first diameter attachable on the driven shaft for rotation therewith about the machine axis. The attachment to the housing is rigidly attached to the external housing of the grinding machine to substantially prevent any movements of the attachment housing in a three-dimensional space relative to the external housing in the grinding machine. A spindle is rotatably mounted on the attachment housing. A driven pulley wheel is fixedly mounted on a spindle to rotate with the spindle, a grinding abrasive element being mounted on the spindle at a grinding station for rotation therewith. Pulleys are mechanically coupled to cause rotation of the driven pulley when the driving pulley is rotated by the grinding machine. The pulley wheels have different diameters so that actuation of the grinding machine causes the abrasive elements to only rotate relative to the external housing at a selected different speed from the predetermined rotational speed for precision grinding in the grinding station.

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