Clamping device for machining pipe bends

摘要

The clamping plate (1) provided with a centring flange for clamping into the clamping chuck of a lathe has a pair of supports (24, 26) which are arranged on both sides of the axis of symmetry of said plate, are displaceable in parallel thereto and are intended for tensioning blocks (20, 22) with clamping bolts which are adjustable in the direction of the axis of symmetry and, at the same time, with respect to one another and are intended for securing the clamping-plate end of the pipe bend. The clamping plate (1) is furthermore provided with at least three further tensioning blocks (52, 54, 56, 58), which are arranged in a circle around the swivelling axis of the clamping plate, with clamping bolts which are adjustable in the direction of the swivelling axis and are arranged on a bow-shaped or annular tensioning-block carrier (50) which can be adjusted in the axis of symmetry and has carrying claws (60), in order to secure the pipe-bend's free end which is to be machined (Fig. 1). <IMAGE>