Apparatus for orienting the position of a machine tool carriage relative to a stationary machine part

In an apparatus for orienting the position of a feed carriage of a machine tool relative to a stationary part, said feed carriage being movable in a plane defined by orthogonally related X and Y axes, the improvement comprising:

• first steering knuckle arms hingedly connected to two oppositely lying sides of said feed carriage, at the free ends of each is hinged a second steering knuckle arm, and wherein said second steering knuckle arms are fixedly secured at their other end against rotation to a common guide rod, which is rotatably supported and movable parallel with respect to said Y axis on said stationary machine part, whereby said first and second steering knuckle arms define in the initial position of said feed carriage at least approximately a right angle, which lies in a plane which is defined by orthogonally related X and Z axes, said Z axis being perpendicular to said X-Y plane.

In an apparatus for orienting the position of a feed carriage of a machine tool relative to a stationary machine part, said feed carriage being movable in a plane defined by orthogonally related X and Y axes, the improvement comprising:

• first steering knuckle arms hingedly connected to two oppositely lying sides of said feed carriage, at the free ends of each is hinged a second steering knuckle arm, plural ball-and-socket joints connecting said knuckle arms and said feed carriage, and wherein said second steering knuckle arms are secured at their other end fixed to and against rotation with respect to a common shaft supported on said stationary machine part, said common shaft being pivotal about an axis which is directed parallel with respect to said Y axis, whereby said first and second steering knuckle arms define in an initial position of said feed carriage at least approximately a right angle, which lies in a plane which is defined by orthogonally related X and Z axes, said Z axis being perpendicular to said X-Y plane.