초록 ▼

A generating head assembly for cutting or machining a surface on a workpiece and including a generating head mounted for relative rotation with the workpiece and with cutting or machining members having a radially advanced cutting or machining position for cutting or machining the surface of the wor

A generating head assembly for cutting or machining a surface on a workpiece and including a generating head mounted for relative rotation with the workpiece and with cutting or machining members having a radially advanced cutting or machining position for cutting or machining the surface of the workpiece and a radially retracted non-cutting on non-machining position; the generating head assembly includes an actuating structure for providing relative rotation between the generating head and the workpiece and a rotary motor mounted with the generating head; the rotary motor is selectively operable to rotate an actuating shaft relative to the generating head to actuate the cutting or machining members to their radially advanced and retracted positions without axial thrust loads being applied to the generating head.

대표청구항 ▼

[ What is claimed is:] [1.] A generating head assembly for performing a machining operation on a surface of a workpiece and including:a generating head for machining the surface of the workpiece through rotation relative to the workpiece surface,said generating head including machining means includi

[ What is claimed is:] [1.] A generating head assembly for performing a machining operation on a surface of a workpiece and including:a generating head for machining the surface of the workpiece through rotation relative to the workpiece surface,said generating head including machining means including at least one machining member actuable to provide a desired machining operation on the workpiece surface andpositioning means operatively connected with said machining means to radially position said machining means between a radially advanced machining position and a radially retracted non-machining position relative to the workpiece surface,actuating means comprising a rotary motor being connected with said generating head and actuable to actuate said positioning means to radially position said machining means to said radially advanced machining position in response to rotation of said rotary motor in one direction and to radially position said machining means to said radially retracted non-machining position in response to rotation of said rotary motor in an opposite direction,drive means for rotatably driving said generating head for rotation relative to the workpiece surface and including a drive spindle connected with said generating head and with said actuating means for rotation together about a preselected axis,said drive means including support means for supporting said drive spindle for rotation about said preselected axis together with said generating head and said actuating means,said drive spindle being a generally elongated structure having a forward end adapted to be connected to said generating head,said support means comprising a fixed drive housing and bearing means for providing rotatable support to said drive spindle and said generating head at a location proximate to said forward end of said drive spindle,said rotary motor having a drive shaft adapted to be operatively connected to said positioning means of said generating head for actuating said positioning means,said rotary motor being connected to said drive spindle at the end opposite said forward end and located remotely from said generating head, said drive spindle being of a generally cylindrical shape having a through bore extending from said forward end to said opposite end, a connecting drive shaft extending through said through bore and connecting said drive shaft to said positioning means for actuating said positioning means.