Method for quickly counting fasteners in aircraft assembly procedures

Abstract

The invention relates to a method for quickly counting fasteners in aircraft assembly procedures, in particular to the method for quickly counting the fasteners in the aircraft assembly procedures when relatively multiple aircraft assembly procedures are involved and related procedures also involve relatively multiple assembly parts and fasteners. The method is characterized by comprising the steps of inputting information of a procedure part model and a fastener set model; obtaining input entity information of the procedure part model and attributes and geometrical information of the fasteners; defining connection relationships between all parts in each procedure; traversing all fasteners under a fastener set and comparing the fasteners with all connection relationships under the procedure one by one and judging whether one fastener belongs to the corresponding connection relationship or not; recording mark information of the fasteners belonging to the connection relationship; after all fasteners are compared with the connection relationships under the procedure, finishing mark information recording of the fasteners under the procedure; calculating the occurrence number of the mark of each fastener as the number of the fasteners with the mark under the procedure; and finishing information counting of the fasteners under the procedure.

Description

technical field [0001] The invention relates to a fast statistical method for fasteners in an aircraft assembly process, especially a method for quickly completing the fastener information of each process when many aircraft assembly processes are involved, and related processes involve many assembly parts and fasteners The statistical method belongs to the technical field of CAD / CAM. Background technique [0002] The assembly of large aircraft parts involves a large number of parts. At the same time, the structure of the parts is complex, the assembly precision is high, and the fasteners involved are usually on the order of millions. The assembly instruction is a productive process document compiled by the process department according to the engineering design requirements, factory process technology level and product quality requirements. It is the basis for assembly operations on the workshop site, and it describes the necessary procedures, supporting parts information, f...

AI Technical Summary

Problems solved by technology

This traditional method of relying on technicians to manually count the information of process fasteners is extremely unstable. It can be dealt with when the number of assembly processes, parts, fasteners, etc. involved is small, but in the face of large quantities of aircraft parts, assembly During the process and connecting fasteners, there are shortcomings of time-consuming and error-prone statistics, which affect the preparation time of the early stage of the process. If the statistics of the fastener grades are wrong, it will also cause production problems such as fastener installation errors, and the statistics of the number of fasteners are not accurate. Affect the accuracy of the fastener rating, if there is a large deviation in the fastener rating, it will have a great impact on the subsequent production cycle

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