1results about How to "Good self-centering performance" patented technology

The utility model provides a kind of fastener clamp of tension testing device, including main shaft, multiple clamping jaw, taper head top block;Main shaft includes threaded section and installation section, installation section is integrally formed in the bottom of threaded section;Multiple scallop bodies are integrally formed on the outer periphery of installation section, and clamping jaw installation groove is formed between adjacent scallop bodies, and clamping jaw is rotatably connected with scallop body by pivot;The axis of taper head top block is connected to the outside of threaded section by screw thread, and the inner wall of the upper portion of clamping jaw is formed with the abutting bevel for cooperating with taper head top block. Through the design of high integration integrated main shaft and scallop body, excellent structural rigidity and strength are provided, the taper-screw driving mechanism is used to realize efficient, synchronous, powerful and uniform clamping and loosening operation of clamping jaw, and excellent self-centering ability is provided to adapt to different size fasteners.