Clamping device for precisely machining inner surface of conformal optical cowling

Abstract

The invention relates to a clamping device for precisely machining an inner surface of a conformal optical cowling, which relates to a machining clamping device, and aims at solving the problem that unpredictable total deformation can be produced because a joint surface of the existing clamping device for precisely machining the inner surface of the conformal optical cowling is in a local contact and even in a point contact, the cowling is difficult to completely fix and the machining precision is difficult to guarantee. The upper end of a basal body is provided with a flange, the lower end of the basal body is provided with a base, an inner cavity of the basal body is a curved inner cavity, the cross section of the curved inner cavity is a variable cross section which is gradually narrowed from top to bottom, a plurality of annular positioning bosses are arranged on the inner wall of the curved inner cavity, the curved radian of each annular positioning boss is consistent with that of the outer surface of the cowling, a transverse groove is formed between two adjacent annular positioning bosses, longitudinal grooves are formed in the plurality of annular positioning bosses, and a through hole which is communicated with the curved inner cavity is formed in the center of the bottom of the basal body. The clamping device is used for precisely machining the inner surface of the conformal optical cowling.

Description

technical field [0001] The invention relates to a clamping device for mechanical processing, in particular to a clamping device for precise machining of the inner surface of a conformal optical dome. Background technique [0002] At present, the requirements for the speed of aircraft are getting higher and higher. In order to adapt to the development of high-speed aircraft and balance the aerodynamic requirements of the aircraft, the contradiction between stealth and optical performance, conformal optical components have emerged as the times require, namely: to improve the aerodynamics of the system The optical window smoothly adapts to the external shape of the system platform for the purpose of chemical performance. The primary key element in the application of conformal optical components is the fairing of the aircraft. Compared with the traditional hemispherical fairing, the conformal optical fairing can significantly reduce the flight resistance of the aircraft, improve...

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problem of the precision machining of the existing shape-conforming optical dome inner surface. The clamping device is an annular structure in which the joint surface of the fixture is distributed in steps. Since the outer surface of the dome and the clamping device inevitably have a certain surface shape error, so the joint surfaces of the two are in partial contact or even point contact, which will produce unpredictable total deformation, and it is difficult to achieve complete fixation of the fairing, resulting in the problem that the machining accuracy is difficult to guarantee. Clamping device for precise machining of the inner surface of optical dome

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