Patent ID: 6164828
Filing Date: 2000-12-26
Classification: B23Q,F16C

Abstract:
In a machine tool, the combination comprising:(a) a bed with horizontally spaced portions,(b) fixed parallel rails extending along said bed portions,(c) a machine tool carriage movable along said rails and including a bridge extending between said bed portions,(d) electrically driven linear motors at each end of said bridge for moving said carriage along said rails,(e) a mounting assembly mounting each end of said bridge on one of said linear motors, said mounting assembly including:(i) a friction plate between said bridge and the linear motor,(ii) biasing means biasing said bridge towards said linear motor, and(iii) guide bolts mounting said bridge on said motor, said bolts extending through and being pivotable in apertures in said bridge and said friction plate, said apertures at one end of said bridge being elongated in the longitudinal direction of said bridge to allow pivoting of said bridge relative to said linear motors about said bolts at the other end of said bridge.