Special center frame for processing pipe threads

• Main Authors: ZHANG PENG, YAN FENGYING, LI GEZHI, WANG XIAOGANG
• Format: Patent
• Language: Chinese; English
• Published: 27.04.2011
• Subjects: COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; TRANSPORTING

The utility model discloses a special center frame for processing pipe threads, which comprises a seat body and three supporting rods, wherein the bottom of the seat body is provided with a structural part installed on a lathe, the middle upper part of the seat body is provided with a center hole through which a workpiece penetrates, and three radial holes are evenly arranged on a matrix constructing the center hole; the supporting rods are matched with the corresponding radial holes and are matched with a fastener to form a structure for locking the supporting rods at the radial position of the center hole; the special center frame for processing the pipe threads also comprises a guidance key and rollers, wherein the guidance key is used for guiding the supporting rods in the radial direction of the center hole in the corresponding radial holes and stopping the supporting rods at the degree of freedom of the circumferential directions of the supporting rods; and the rollers are arranged at the centripetal en