Patent ID: 6645047
Filing Date: 2003-11-11
Classification: B24B

Abstract:
A gage head positioning assembly for a machining tool assembly for a workpiece which rotates relative to said machining tool assembly comprising:an actuator base mounted to said machining tool assembly; a pivot arm assembly having a pivot arm mounted for rotation to said actuator base about a first pivot axis and a tierod mounted for rotation to said actuator base about a second pivot axis displaced from said first pivot axis, said pivot arm and said tierod further being rotationally affixed to a link at third and fourth displaced pivot axes respectively, whereby said pivot arm, said tierod, said link, and said actuator base cooperate to form a four-bar linkage with relative rotational movement provided at said first, second, third, and fourth pivot axes; a gage mount arm mounted to said pivot arm for rotation about said third pivot axis and coupled to said link; a gage head mounted to said gage mount arm; and an actuator mounted to said actuator base and acting upon said pivot arm, causing said pivot arm to rotate between a retracted position in which said gage head is disengaged from said workpiece, and a gaging position in which said gage head is engaged with said workpiece.