Linear guiding apparatus for machine tool

Abstract

There is provided a linear guiding apparatus for a machine tool, the system having both of rapid characteristics of a rolling guide which does not deteriorate the precision of movement, and damping characteristics of a sliding guide which is hardly influenced by the load of a movable body. The feed guiding system includes: rolling guides 14a, 14b, 15a and 15b for guiding a horizontal movement while receiving the load of a movable body 12 on a bed 11; a sliding guide including sliding guide ways 16a and 16b, which extend in parallel to the rolling guides and in vertical directions, and slider portions 18a and 18b which slide on the sliding guide ways; and frictional force setting parts for changing the frictional force between the slider portions and the sliding guide ways, to set the magnitude of the frictional force.

Dependencies are inferred from the claim text.