The invention discloses a rubber
head shape-preserving device and method for bonding of a precision optical-
mechanical system. The rubber
head shape-preserving device comprises a mirror frame, an optical part, an
adhesive, a shape-preserving tool and a plug. The optical part is placed in the mirror frame, the
optical axis of the optical part coincides with the cylindrical axis of the mirror frame,the shape-preserving tool is in close fit with a glue pouring hole in the mirror frame, the end face of the shape-preserving tool makes contact with the cylindrical surface of the optical part, the
adhesive is injected into the shape-preserving tool, and the plug is installed on the side, away from the optical part, of the shape-preserving tool, and is tightly matched with the shape-preserving tool. When an optical-mechanical bonding
assembly is carried out, after the
adhesive with fluidity is injected through the shape-preserving tool, the mounting plug slightly extrudes the adhesive to restrain the shape of the adhesive head in the curing process, and the bonding of the optical part and the mirror frame is realized. According to the invention, the risk that the shape of the adhesive head is not easy to control due to high fluidity of the adhesive before curing is reduced, the
controllability of the
surface shape precision of low-stress bonding of a precision optical-
mechanical system is improved, and the method belongs to the field of design, installation and adjustment of precision optical machines.