Patent ID: 9321134
Filing Date: 2016-04-26
CPC Classification: B23K

Claim Text:
1. A clamping device for internally centering pipes with respect to one another, the device comprising: two clamping heads adapted to be placed into mutually facing ends of the pipes, each of said two clamping heads comprising radially displaceable clamping shoes which are evenly distributed over an external periphery of the clamping heads; an adjustment actuator for adjusting mutual positions of the clamping heads in an axial direction; a plurality of guide bodies positioned eccentrically with respect to the axial direction and that are adapted to guide the clamping heads in the axial direction with respect to one another; and bearings on at least one of the two clamping heads, wherein each of said two clamping heads further comprises a drive disc that is oriented transverse to the axial direction and that is displaceably supported on said guide bodies by bearings, wherein the drive disc is adapted to cooperate with respective ones of said clamping shoes to cause radial displacement of the respective said clamping shoes upon axial displacement of the drive disc along said guide bodies, and wherein each of the two clamping heads comprises an axial drive actuator for inducing axial displacement of the drive disc along the guide bodies.