Waysless machine tool table
AssigneeAteliers des Charmilles S.A.
InventorBenno I. Bonga
Life of this patent
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Abstract
A machine tool provided with a movable table supported by a stationary table, the movable table being displaceable relative to the stationary table in all directions and being supported by the stationary table by pressurized fluid bearing. The movable table is positioned by at least three actuators pivotally connected at one end to the stationary table and at their other end to the movable table such that the lengths of the actuators, controlled by an appropriate numerical control system, result in a predetermined position of the movable table relative to a reference position.
Claims9
A machine tool comprising a stationary table, a movable table supported by and displaceable relative to said stationary table, a workpiece mounted on said movable table, bearing means between said tables permitting displacement of said movable table relative to said stationary table in perpendicular directions within a single plane substantially parallel to said stationary table, at least three variable length linear actuators for displacing said movable table in said plane, said linear actuators having their axes in a single plane substantially parallel to said stationary table, pivot means connecting an end of each of said linear actuators to said stationary table and an other end to said movable table, and means for controlling the length of each of said linear actuators for causing said movable table to occupy a predetermined position relative to said stationary table.
A machine tool comprising a stationary table, a movable table supported by and displaceable relative to said stationary table, a workpiece mounted on said movable table, bearing means between said tables permitting displacement of said movable table relative to said stationary table in perpendicular directions within a single plane substantially parallel to said stationary table, at least three variable length linear actuators for displacing said movable table in said plane, said linear actuators having their axes in a single plane substantially parallel to said stationary table, pivot means mounting an end of each of said linear actuators to said stationary table and an other end to said movable table, and position feedback means for detecting the instantaneous position of said movable table relative to said stationary table for stopping the operation of said linear actuators when a predetermined position of said movable table relative to said stationary table is obtained.
Dependencies are inferred from the claim text.