Main shaft locating mechanism for change of tool

Details Main shaft locating mechanism for change of tool Main shaft locating mechanism for change of tool

1994-05-10

1995-12-05

Rosenbaum, Mark

Gear cutting, milling, or planing

Milling

Cutter spindle or spindle support

B23C 526

Patent

active

054722993

ABSTRACT:
A main shaft locating mechanism for change of tool, comprising a locating seat disposed with an eccentric, and a splined shaft disposed with a disk having an eccentric locating pin corresponding to the eccentric hole of the locating seat and adapted to axially fit thereinto. The disk and eccentric locating pin are formed with several orifices from which high pressure gas is injected, forming a gas pad between the eccentric locating pin and the locating seat to greatly reduce friction therebetween before the eccentric locating pin is fitted with the locating seat, whereby the main shaft stops rotating before the the tool is loosened. After the main shaft is stopped and located and the tool is loosened, the direction of the high pressure gas is changed to blow into the mandrel so as to clear up cutting chips accumulated therein for facilitating next tool-changing operation.

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