Size control shoe for microfinishing machine

Details Size control shoe for microfinishing machine Size control shoe for microfinishing machine

B - Operations, Transporting

24

B

33/189, 51/54

B24B 49/04 (2006.01) B24B 21/02 (2006.01) B24B 35/00 (2006.01)

Patent

CA 1313306

ABSTRACT OF THE DISCLOSURE Microfinishing devices and processes for in-process gauging of a microfinishing process of generally cylindrical workpieces. A size control shoe is used with a microfinishing shoe such that the diameter of a generally cylindrical workpiece can be continually monitored during the microfinishing process. Once a predetermined diameter or workpiece geometry is achieved, the machining process can be terminated. Several embodiments of size control shoes are disclosed which are particularly adapted for retrofit applications for existing microfinishing equipment. A "masterless" microfinishing machine is also described having arms which engage the size control and microfinishing shoes which follow the path of the workpiece during machining. Since the shoes must be maintained in engagement with the workpiece after a desired diameter is achieved, the pressure applied by the microfinishing arms is relieved until all of the workpiece surfaces are machined. Methods incorporating periodic reversing of the direction of rotation of the workpiece relative to the shoes are also described which provide enhanced material removal rate and high accuracy.

615450

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