Patent ID: 9199297
Filing Date: 2015-12-01
Classification: B21D,B25J

Abstract:
1. A drive device for multiaxial transport of workpieces through successive machining stations of a machine tool, comprising two gripper rails that are transversely displaceable independently of each other by a first transverse drive assigned to the first gripper rail and a second transverse drive assigned to the second gripper rail for the execution of a closing movement, wherein the gripper rails are at least one of (i) vertically displaceable independently of each other for the execution of a lifting movement, and (ii) longitudinally displaceable independently of each other for the execution of a transport movement, wherein the drive device comprises a first vertical drive assigned to the first gripper rail, and a second vertical drive assigned to the second gripper rail, by which the gripper rails are vertically displaceable independently of each other for the execution of the lifting movement, wherein the first vertical drive comprises a first parallelogram guide and wherein the second vertical drive comprises a further parallelogram guide, wherein the drive device comprises a first longitudinal drive assigned to the first gripper rail, and a second longitudinal drive assigned to the second gripper rail, by which the gripper rails are longitudinally displaceable independently of each other for the execution of the transport movement, wherein the longitudinal drives comprise respectively a first universal joint, a telescopic splined shaft, a second universal joint and a gear mechanism, and wherein the first transverse drive comprises a first parallelogram guide, and the second transverse drive comprises a second parallelogram guide.