Gluing method for double seams of space mirrors

Abstract

The method for gluing the space reflector with double slits, relates to the field of space optical remote sensing technology, and solves the problems of low positioning accuracy, uneven thickness of the glue layer, and glue problems in the existing method of using three jacking wires to complete the glue between the space reflector and the inlay. After the layer is cured, the residual stress will cause the surface shape accuracy of the space mirror to decrease and the stress distribution will be unstable. In the present invention, glue is applied to the lower side of the inner hole wall of the space reflector, and the upper side of the inner hole wall of the space reflector is matched with the large seam of the double seam bonding tool, and at the same time, glue is applied to the outer wall of the inlay, and the inner wall of the inlay is connected to the double seam. The small seam of the seam bonding tool cooperates to complete the bonding of the space mirror and the inlay. Both the large seam and the small seam of the double seam bonding tool are processed on the same basis, which ensures the coaxiality of the two seams and greatly improves the uniformity of the thickness of the adhesive layer; The post-residual stress is very small, which can fully ensure that the surface shape accuracy of the space mirror remains unchanged. The method of the invention is simple and reliable in operation.

Description

technical field [0001] The invention relates to the technical field of space optical remote sensing, in particular to a method for gluing a space reflector with double seams. Background technique [0002] The surface shape accuracy requirement of the space mirror 1 is very high, and its surface shape accuracy directly affects the imaging quality of the space camera. The space reflector 1 is usually made of glass or ceramic material, and the characteristics of the material make the space reflector 1 unable to be threaded, so that the thread cannot be used to connect and fix the inlay 5 . The space mirror 1 and the inlay 5 are usually connected by epoxy resin. However, due to the uneven thickness of the adhesive layer 2 bonded between the space mirror 1 and the inlay 5, the space mirror 1 Greater stress is generated between the mosaic 5 and the surface shape accuracy of the space mirror 1, thereby reducing the imaging quality of the space camera. [0003] At present, the glu...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of low positioning accuracy, uneven adhesive layer thickness, and residual stress after the adhesive layer is cured in the existing method of using three jackscrews to complete the space mirror and the inlay, the surface shape accuracy of the space mirror is reduced, and the stress In order to solve the problem of unstable distribution, the present invention proposes a simple and reliable double-stop gluing method for space mirrors that can realize high-precision positioning between the space mirror and the inlay, and has a uniform thickness of the glue layer.

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