Method for processing bracket mounting surface meeting assembly requirement of solar wing with dip angle

Abstract

The invention discloses a method for processing a bracket mounting surface meeting the assembly requirement of a solar wing with a dip angle, and belongs to the technical field of spacecraft structure design. The method solves the problem that in the existing process of installing the large solar wing with the certain dip angle, the installation and adjustment operation is complex due to the fact that the requirement for the plane precision of an installation face of an initiating explosive device pressing base is higher. According to the assembling precision requirement of the large solar wing, errors are decomposed in the direction perpendicular to a supporting cellular board and the direction parallel to the supporting cellular board, and the errors perpendicular to the supporting cellular board are compensated by machining a heat insulation pad into different thicknesses. The errors parallel to the supporting cellular board are controlled through the relative position degree error of second pin holes and the position degree error of a bracket in the direction parallel to the supporting cellular board.

Description

technical field [0001] The invention relates to a processing method for a mounting surface of a bracket meeting the assembly requirements of a solar wing with an inclination angle, and belongs to the technical field of spacecraft structure design. Background technique [0002] The large solar wing is connected to the satellite platform through multiple pyrotechnic pressing seats, and the supporting honeycomb panels of the satellite platform and the pyrotechnic pressing seats are connected by brackets of corresponding heights, and the number of brackets is n. The solar wing manufacturer will put forward installation accuracy requirements for the satellite platform. The installation accuracy requirements are the flatness of the mounting surface of the pressing seat of the pyrotechnic product and the position of the positioning pin hole on the mounting surface of the pressing seat of the pyrotechnic product, so as to prevent the solar wing from During the installation process, ...

AI Technical Summary

Problems solved by technology

The solar wing manufacturer will put forward installation accuracy requirements for the satellite platform. The installation accuracy requirements are the flatness of the mounting surface of the pressing seat of the pyrotechnic product and the position of the positioning pin hole on the mounting surface of the pressing seat of the pyrotechnic product, so as to prevent the solar wing from During the installation process, a large stress concentration will be generated, which will affect the deployment of the solar wing in orbit

Multiple pyrotechnic product pressing seats have relatively high requirements on the installation accuracy of the satellite platform installation plane. In order to meet the accuracy requirements, the traditional method is to carry out installation, adjustment and installation by continuous trial and error during the satellite final assembly stage, which may affect multiple satellite platforms. It is time-consuming and labor-intensive to install and adjust the plane accuracy of the mounting surface of the pressing seat of the pyrotechnic product. There are many constraints in the satellite assembly process, and each subsystem is coupled with each other, so there is a possibility that the installation and adjustment will never be good; Errors will eventually accumulate to the mounting surface of the pyrotechnic product pressing seat, and the overall installation surface of the pyrotechnic product pressing seat will be combined and processed. Since the satellite platform uses honeycomb sandwich panels, the combined processing process is likely to cause damage to the supporting honeycomb plate, and the risk of the processing process In addition, since the solar wing 8 (i.e. the sail board) has a certain angle with the satellite platform (i.e. the supporting honeycomb panel 1), and the angle is greater than 0°, there is A certain angle a (the angle is determined by the overall layout of the entire star and the rocket, taking into account factors such as the mass of the entire star, the layout of a single machine, and the size of the solar wing), makes it difficult for the mounting surface to be horizontal or vertical, and combined processing requires a large 5-axis machine tools, expensive

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