Conical surface efficient self-centering high-precision clamping device

Abstract

The invention relates to a conical surface efficient self-centering high-precision clamping device which comprises a sleeve mandrel, a conical surface element clamp body, a locking nut and a coaxiality calibration standard sample part, wherein the inner surface of the sleeve mandrel has a conical surface; the conical surface element clamp body is disposed on the sleeve mandrel and is provided withan inner through hole, a first conical surface and a second conical surface, wherein the first conical surface and the second conical surface are disposed on the upper portion and the lower portion of the conical surface element clamp body respectively, the inclination angles of the first conical surface and the second conical surface are consistent with the inclination angle of the conical surface of the sleeve mandrel. The locking nut sleeves the conical surface element clamp body and the sleeve mandrel and is in threaded connection with the sleeve mandrel. The coaxiality calibration standard sample part is used for achieving the alignment between the sleeve mandrel and a lathe spindle. The two mandrels matched with the conical surface are utilized to perform quickly overturning for clamping, and the conical surface matching has the advantages of no radial clearance, high coaxiality and convenience in mounting and dismantling. Besides, when the cone angle is small, the centering stability is high, very large torque can be transmitted, so that the processing of characteristics of rotating bodies at the two ends of irregular parts is achieved, and the coaxiality requirements are ensured.

Description

technical field [0001] The invention relates to the field of high-efficiency and high-precision clamping of rotating body parts at both ends, in particular to a high-efficiency self-centering and high-precision clamping device for tapered surface rotating body parts at both ends. Background technique [0002] The two-end rotary parts in a sensitive element are widely used in aerospace, aviation, navigation, military, civil, etc., and its main feature is that the coaxiality and perpendicularity of the left and right ends are very high, and the finishing after surface treatment cannot be found. Positive, the traditional method usually considers two-top clamping and forming, or uses soft jaws and tooling to clamp and turn around for alignment processing, or uses double-sided lathe processing, or uses precision double-spindle lathes to automatically dock the front and back sides to meet the accuracy requirements. The above clamping methods have the problems of complex manual adj...

AI Technical Summary

Problems solved by technology

[0002] The two-end rotary parts in a sensitive element are widely used in aerospace, aviation, navigation, military, civil, etc., and its main feature is that the coaxiality and perpendicularity of the left and right ends are very high, and the finishing after surface treatment cannot be found. Positive, the traditional method usually considers two-top clamping and forming, or uses soft jaws and tooling to clamp and turn around for alignment processing, or uses double-sided lathe processing, or uses precision double-spindle lathes to automatically dock the front and back sides to meet the accuracy requirements. The above clamping methods have the problems of complex manual adjustment, difficulty in ensuring accuracy, and excessive cumulative errors

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