BALL SCREW SUPPORT APPARATUS FOR MACHINE TOOL

摘要

PURPOSE: A ball screw supporting device of a machine tool is provided to improve a transferring speed by preventing noise caused by interference between a ball screw and bearing. CONSTITUTION: A ball screw supporting device of a machine tool(100) comprises housing(110), a first bearing(120), and a second bearing(130). A tool cutting a workpiece is mounted in a carriage and the carriage is transferred through a ball screw(200) along a longitudinal direction. The housing is mounted in a side of the ball screw and supports the ball screw to be rotated. The first bearing is arranged inside the housing. The second bearing is arranged between the first bearing and ball screw.