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Method for performing horizontal measurement on product airfoil structure by using three-dimensional laser scanning system

A three-dimensional laser and level measurement technology, applied in the field of measurement, can solve the problems of low measurement accuracy and low efficiency, and achieve the effects of reliable measurement process, high operation efficiency, and saving design, manufacturing and management costs

Active Publication Date: 2019-01-08
BEIJING HANGXING MACHINERY MFG CO LTD
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AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to provide a method for measuring the level of the airfoil structure of the product with a three-dimensional laser scanning system, and to overcome the shortcomings of the existing process schemes, such as low measurement accuracy and low efficiency, It eliminates the dependence on tooling auxiliary positioning, avoids the introduction of accidental errors, and can effectively ensure the level measurement requirements of small-sized, high-precision installation airfoils

Method used

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  • Method for performing horizontal measurement on product airfoil structure by using three-dimensional laser scanning system
  • Method for performing horizontal measurement on product airfoil structure by using three-dimensional laser scanning system
  • Method for performing horizontal measurement on product airfoil structure by using three-dimensional laser scanning system

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specific Embodiment approach

[0037] The specific embodiment is carried out according to the following process steps:

[0038] The first step is to determine the reference cabin and reference features: because the product horizontal measurement reference section is set on the cabin 2 and cabin 4 in the design, the cabin 2 and cabin 4 are selected as the reference cabin to obtain the product’s Theoretical longitudinal axis; because the relative positional relationship between the slider and the product has high machining accuracy, and the symmetry plane of the slider coincides with the horizontal plane of the product, the slider is selected as a reference feature to obtain the theoretical installation plane of the rudder surface.

[0039] The second step is to prepare the product and the 3D laser scanning system: hoist the product to a reliable support on the support vehicle, and place the 3D laser scanning system near the product.

[0040] The third step of scanning: set the scanning resolution of the thre...

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Abstract

The invention provides a method for performing horizontal measurement on a product airfoil structure by using a three-dimensional laser scanning system, and belongs to the technical field of measurement. Compared with a platform height gauge method, the three-dimensional laser scanning system is utilized in the method provided by the invention, so that the precision is higher, the measurement advantages of airfoil installation angles and anhedrals with small sizes and high installation precision requirements are obvious, the introduction of accidental errors can be effectively avoided in calculation and measurement processes, and the result is reliable; the entire measurement process neither has requirements for the attitude of the product, nor requires the auxiliary positioning of a tool,thereby reducing the design and manufacture costs and the management of the tool; and the process of repeatedly leveling the product in the horizontal measurement of the airfoil is omitted in the process, a measurement result can be automatically calculated via the data output, thereby effectively reducing the work intensity of operators and improving the operation efficiency.

Description

technical field [0001] The invention relates to a method for measuring the level of a product airfoil structure by a three-dimensional laser scanning system, which is suitable for measuring the installation angle and dihedral angle of an airfoil of a symmetrical airfoil installed on a product, and belongs to the technical field of measurement. Background technique [0002] According to the requirements of the overall design unit, the horizontal measurement of the assembly structure of the aviation product needs to be completed before leaving the factory, including the coaxiality of each cabin section, the installation angle of the wing structure, the dihedral angle, the parallelism of the slider and the lifting lug, the installation Level measurement content such as accuracy. Among them, the initial installation accuracy of the wing structure has an important influence and reference significance on the flight attitude and control of the product. It is necessary for the assem...

Claims

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Application Information

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IPC IPC(8): G01B11/26G01B11/27
CPCG01B11/26G01B11/27
Inventor 朱永洲王春娣傅世强
Owner BEIJING HANGXING MACHINERY MFG CO LTD
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