FEED APPARATUS AND MACHINE TOOL

摘要

A feed apparatus includes a base, a moving member that is movable in a predetermined axial direction with respect to the base, a first screw shaft provided on the base so as to be parallel to the axial direction, a second screw shaft provided separately from the first screw shaft on the base so as to be parallel to the predetermined axial direction, a first motor mounted on the base to rotate the first screw shaft, a second motor mounted on the base to rotate the second screw shaft, a first nut provided on the moving member and moving in the predetermined axial direction in conjunction with rotation of the first screw shaft, and a second nut provided on the moving member and moving in the predetermined axial direction in conjunction with rotation of the second screw shaft. The first nut and the second nut are disposed at different positions in the predetermined axial direction.

主权项

1. A feed apparatus comprising:
a base, a moving member that is movable in a predetermined axial direction with respect to the base, a first screw shaft provided on the base so as to be parallel to the axial direction and rotatably supported by the base, a second screw shaft provided separately from the first screw shaft on the base so as to be parallel to the axial direction and rotatably supported by the base, a first driving source mounted on the base to rotate the first screw shaft, a second driving source mounted on the base to rotate the second screw shaft, a first nut provided on the moving member and screwed over the first screw shaft to move in the axial direction in conjunction with rotation of the first screw shaft, and a second nut provided on the moving member and screwed over the second screw shaft to move in the axial direction in conjunction with rotation of the second screw shaft; wherein the first nut and the second nut are disposed at different positions in the axial direction.