Novel chuck

Abstract

The invention provides a novel chuck. The novel chuck comprises a shell and clamping jaw assemblies which are arranged in the circumferential direction of the shell in an evenly-distributed mode. Thenovel chuck is characterized in that a clamping jaw locking cover is arranged on the end face of the shell, the clamping jaw assemblies slide relative to the radial direction of the shell so as to beadjusted to the required clamping size and fixed through the clamping jaw locking cover; and a control disc connected with a clamping driving device is arranged in the shell, and the clamping jaw assemblies are controlled through the control disc to realize clamping or loosening within the clamping size. According to the novel chuck, the overall weight is greatly reduced, meanwhile the structure is simpler, assembly and machining are convenient, the production cost is greatly lowered, compared with an existing oil pressure chuck, higher strength and clamping intensity are achieved, self-centering clamping and eccentric clamping can be achieved, the application range is wide, and compared with an existing instrument lathe clamp, the advantages that the adjusting range of the clamping size is large, and a clamping head does not need to be replaced are achieved.

Description

technical field [0001] The invention relates to the field of clamping of machines such as numerical control machine tools, bench drills, vertical drills, milling machines, numerical control engraving and milling, and in particular to a novel chuck. Background technique [0002] Fixtures are used in mechanical lathes to clamp workpieces and then process them. The structure of the existing lathe clamps generally includes a jaw movable cover and a spiral disk. A through hole is arranged in the center of the jaw movable cover, and a walking rail connected with the through hole is arranged on the cover surface of the jaw movable cover. Claws are provided for sliding on the walking rail, and the back of the claws is provided with a helical tooth groove that cooperates with the helical disc. Through the rotation of the helical disc, the claws slide toward each other or relative to each other in the traveling rail to realize the clamping and uninstall. [0003] The applicant appli...

AI Technical Summary

Problems solved by technology

[0004] After the research and development is completed, it is put into the market. When it is used, it is reported that the weight is heavy, which increases the burden on the machine tool spindle and bearings, affects the stability of the machine tool and thus affects the processing accuracy of the product, and there are also shortcomings such as high precision and difficult processing of the main internal parts. It has made further optimization improvements

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