Patent ID: 7220087

Claim:
A work processing method in a machine tool having a main shaft movable in at least a longitudinal direction, the main shaft being at a position on one side, in a horizontally longitudinal direction, of a foundation comprising: providing a vertical rotation support shaft at a position on the other side of said foundation opposite to said one side, fixing a lateral stand shaped as a rectangle in plan view and as a right angled triangle in side view on a top portion of said vertical rotation support shaft, fitting standing support stands of a work grip rotation feed mechanism portion to opposite ends of a slant surface portion of said lateral stand in a longitudinal direction of said lateral stand, said work grip rotation feed mechanism portion gripping a bar-shaped work and rotating the bar-shaped work, horizontally separating a work support axis of said work grip rotation feed mechanism portion and an axis of said vertical rotation support shaft by a required distance to a lower portion of the slant surface portion of the lateral stand, and varying the position of the lateral stand by rotating the vertical rotation support shaft between a case where the bar-shaped work is attached to and removed from the work grip rotation feed mechanism portion and a case where the bar-shaped work is processed by longitudinal displacement of the main shaft.