| 摘要 |
PURPOSE:To prevent the axis of a spindle device from displacement and vibration during working operation by receiving the end face of an annular rib provided on the back face side of a turntable to project rearward with an annular support ring provided on a support body. CONSTITUTION:A turntable 10 rotated in a perpendicular plane is mounted on a support body 9 moving forward and backward to a workpiece. A spindle device 11 is mounted on the front face side of the turntable 10 while an annular rib 20 projecting backward is provided on the back face side so that the end face of the annular rib 20 is received with an annular support ring 23 provided on the support body 9. Since the end face of annular rib 20 provided on the turntable 10 abuts against the annular support ring 23 over the approximately total periphery, the turntable 10 is always in the perpendicular plane. Also, the rigidity of turntable 10 itself is improved to prevent the axis of spindle device 11 from the displacement and vibration during working operations. |
