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Aircraft assembly positioning method based on three-dimensional laser projection

A technology of aircraft assembly and positioning method, applied in aircraft assembly and other directions, can solve the problems of high cost of tooling positioning, failure to detect the quality of parts in key assembly areas in time, and repeated investment in tooling.

Pending Publication Date: 2021-09-03
中航西飞民用飞机有限责任公司
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Problems solved by technology

[0003] In order to solve the problems of low efficiency and poor precision of line drawing positioning in the prior art, high cost of tooling positioning, repeated investment in tooling due to design changes, and inability to detect the quality of parts in key assembly areas in time, the purpose of the present invention is to propose a three-dimensional laser projection based The aircraft assembly positioning method is based on the product model technology and uses the laser projection principle to complete the positioning of parts and fastener holes and the positioning accuracy of key areas. Aircraft assembly positioning

Method used

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  • Aircraft assembly positioning method based on three-dimensional laser projection

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Embodiment Construction

[0015] Referring to the accompanying drawings, the aircraft assembly positioning method based on three-dimensional laser projection is to input the design digital model of the first assembly part 4 and the second assembly part 5 into the control computer 1 of the projection device 2 to establish a simulated assembly relationship. In the coordinate system of the first assembly part 4, the three-dimensional outline of the second assembly part 5 or the center of the fastener hole is projected on the assembly position of the first assembly part 4 in the form of a laser line, instead of the tooling locator, the drilling The model, instead of the line drawing positioning method, completes part positioning, fastener hole position determination and assembly inspection.

[0016] After collecting the feature points on the entity of the first assembly 4 and correlating with the design digital model of the first assembly 4, the projection device 2 is connected to the aircraft coordinate sy...

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Abstract

The invention relates to an aircraft assembly positioning method based on three-dimensional laser projection. The method comprises the following steps: inputting design digital-analog of a first assembly part and a second assembly part into a control computer of projection equipment to establish a simulation assembly relationship; in the coordinate system of the first assembly part, the three-dimensional contour of the second assembly part or the center of the fastener hole is projected on the assembly position of the first assembly part in a laser line mode, a tool positioner and a drilling sample plate are replaced, a line drawing positioning mode is replaced, and part positioning, fastener hole position determination and assembly inspection are completed.

Description

technical field [0001] The invention relates to aircraft manufacturing technology, belongs to the technical field of digital assembly of aircraft, and relates to an aircraft assembly positioning method based on three-dimensional laser projection. Background technique [0002] Traditional aircraft assembly positioning includes methods such as line drawing positioning, assembly tooling positioning, and reference part positioning. At present, these methods are used alone or in combination to locate parts and fastener holes during aircraft manufacturing. In the existing technology, there are problems of low efficiency and poor accuracy in line drawing positioning; assembly tooling can effectively solve the problem of positioning accuracy, but due to factors such as operating space and economic costs, positioning tooling is generally not provided for various types of parts, such as aircraft The installation brackets of various systems, the connecting pieces at the joints of parts...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64F5/10
CPCB64F5/10
Inventor 韩炜毛新宇马平社李婉丽杨文张尚安
Owner 中航西飞民用飞机有限责任公司
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