SPIRAL GRINDING RELIEVING MACHINE WITH TANDEM PLANETARY DIFFERENTIAL DRIVE

摘要

Spiral and radial relief grinding and backing off apparatus with improved headstock assembly capable of complex motion including simultaneous axial and radial displacements of a work spindle which is continuously rotated independently by a tandem planetary differential sine drive system operative to increase or reduce its speed as a selectable function of the linear travel of a machine carriage, traverse table, or the like, of which the headstock assembly and drive components are a structural part.