A 3D digital assembly method for spacecraft

Abstract

The invention discloses a three-dimensional digital assembling method for a space vehicle. The three-dimensional digital assembling method comprises the steps: firstly constructing three-dimensional structure models of all sets of instrumental equipment of the space vehicle, and determining hole site coordinates of mounting holes, coordinates and directions of mounting positions of sockets and relative position coordinates of an equipment grounding point; on the basis of the first step, developing automatic assembling design, determining mounting positions of all the sets of equipment on a deck, fastening information of equipment mounting holes, a cable trend and a grounding wire trend, and respectively storing results into an assembling design information database; finally sending the three-dimensional structure models and material lists generated based on the assembling information database to an assembling site so as to guide assembling and implementation work. According to the method, visualization of a design idea and structuralization of design parameters are realized, the shortcomings that a conventional mode based on a two-dimensional drawing is serial in design process, dispersive in result information and low in working efficiency are overcome, collaboration, parallelization, automation and integration are realized, the design period can be greatly shortened, and the assembling design quality of the space vehicle is improved.

Description

Technical field [0001] The invention belongs to the field of spacecraft assembly design, and relates to a method for assisting the assembly of spacecraft instruments and equipment by using three-dimensional digital means. Background technique [0002] At present, the spacecraft assembly design department has been able to generally use 3D CAD software for assembly design. However, in the traditional mode, the information carrier that flows between the design department and the process department is still two-dimensional drawings. The designer needs to convert the assembly three-dimensional model into two-dimensional drawings for distribution, while the craftsman needs to refer to the three-dimensional model to re-understand and digest the two-dimensional drawings in the process of preparing the process. It can be seen that the traditional spacecraft assembly mode has three limitations: ① low efficiency, the conversion of 3D models to 2D drawings, professional review of 2D drawing...

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is to overcome the deficiencies of the prior art and provide a three-dimensional digital assembly method for spacecraft, which uses a network-based collaborative design platform as the design environment, and uses the spacecraft assembly three-dimensional model and bill of materials as design information. The carrier overcomes the shortcomings of serial design process, scattered result information, and low work efficiency of the traditional model based on two-dimensional drawings, realizes the integration of multiple sets of two-dimensional drawings into a set of three-dimensional models for assembly in the factory, and realizes the final assembly of spacecraft automation, parallelization, integration and collaboration

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