초록 ▼

A reciprocating tool post assembly is disclosed that may provide substantially linear excursions of a cutting tool mounted therein. The apparatus includes a voice coil assembly having a longitudinal axis that provides for the reciprocating movement of the assembly and to which a pair of coil arms is

A reciprocating tool post assembly is disclosed that may provide substantially linear excursions of a cutting tool mounted therein. The apparatus includes a voice coil assembly having a longitudinal axis that provides for the reciprocating movement of the assembly and to which a pair of coil arms is attached. The assembly also includes a pair of lever arms, each being pivotally attached between a respective coil arm and a draw bar, with a pair of fulcrum members attached to a base of the assembly that engage each respective lever arm to provide a fulcrum about which each respective lever arm may pivot. One end of the draw bar is attached to a tool support that is guided in a substantially axial movement by a guide member, such that, when a cutting tool is attached to the tool support and the movement of the voice coil causes the cutting tool to reciprocate substantially axially with respect to the base.

대표청구항 ▼

[ What is claimed is:] [17.] A method for reciprocating a cutting tool in a predetermined direction, said method comprising the steps of:reciprocating a pair of coil arms along a first axis, each said coil arm having first and second ends;pivotally attaching a lever arm to each said coil arm first e

[ What is claimed is:] [17.] A method for reciprocating a cutting tool in a predetermined direction, said method comprising the steps of:reciprocating a pair of coil arms along a first axis, each said coil arm having first and second ends;pivotally attaching a lever arm to each said coil arm first end, each said lever arm having a first end, a second end and a longitudinal axis extending between said first and second ends, said lever arm axis being substantially transverse to said first axis, with each said lever arm first end pivotally attached to the respective said coil arm first end;pivoting each said lever arm about a fulcrum as said pair of coil arms is reciprocated;pivotally attaching said second end of said lever arm to an elongated draw bar having two ends and a longitudinal axis, with said draw bar axis aligned generally parallel to said first axis;attaching a tool support to said draw bar;supporting said tool support for reciprocating movement generally parallel to said first axis while restraining motion transverse to said draw bar axis, whereby pivoting movement of the lever arms effects reciprocating movement of the draw bar and tool support generally parallel to the first axis; andattaching a cutting tool to said tool support, whereby the cutting tool is reciprocated in a direction generally parallel to the first axis.