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Flexible conformal antenna laser machining error control method based on curved surface mapping

A conformal antenna, laser processing technology, applied in laser welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problem of inability to realize flexible antenna analysis and control

Active Publication Date: 2019-11-26
DALIAN UNIV OF TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, this device is only suitable for planar antenna boards, and cannot analyze and control the processing errors caused by clamping deformation during the laser processing of flexible antennas, which has certain limitations.

Method used

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  • Flexible conformal antenna laser machining error control method based on curved surface mapping
  • Flexible conformal antenna laser machining error control method based on curved surface mapping
  • Flexible conformal antenna laser machining error control method based on curved surface mapping

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Embodiment Construction

[0042] The specific implementation manner of the present invention will be described in detail in conjunction with the technical scheme and the accompanying drawings.

[0043] The flexible conformal antenna produces irregular deformation in the clamped state, and the conventional processing method is processed according to the ideal antenna line, which is prone to processing errors. Aiming at the limitations of existing technologies, a laser processing error control method for flexible conformal antennas based on surface mapping was invented. The overall process is shown in the attached figure 1 shown.

[0044] Taking the processing of a flexible conformal antenna with a size of 98×1×200 (outer diameter×wall thickness×length, in mm) and a copper plating layer as an example, the implementation process of the present invention will be described in detail.

[0045] First, determine the probe coordinate system by step 1, and determine the transformation relationship between the p...

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Abstract

The invention belongs to the technical field of flexible conformal antenna laser machining, and relates to a flexible conformal antenna laser machining error control method based on curved surface mapping. The method includes the steps that clamping state curved surface coordinates are measured, and a transformation matrix between a measuring head-workpiece-machine tool coordinate system is established. A clamping state curved surface measuring point and a mapping point thereof are subjected to triangular meshing, and the curved surface characteristics of a flexible conformal antenna in different states are illuminated. The mapping relationship between vertexes and internal points of meshes of a clamping state curved surface and a theoretical curved surface is solved, and the mapping relationship between the clamping state curved surface and the theoretical curved surface of the flexible conformal antenna is established. An ideal machining track is generated through a theoretical curved surface model, and an actual laser machining track of the flexible conformal antenna is solved based on the mapping relationship. According to the method, machining errors caused by deformation of the flexible conformal antenna can be reduced, and great practical application value is achieved for improving the performance of the flexible conformal antenna.

Description

technical field [0001] The invention belongs to the technical field of laser processing of flexible conformal antennas, and relates to a laser processing error control method for flexible conformal antennas based on curved surface mapping. Background technique [0002] Flexible conformal antennas are widely used in aerospace and other fields as important components for transmitting and receiving electromagnetic waves in aircraft. This type of component can not only conform to the surface of the carrier, adjust and adapt to changes in the shape of the carrier, but also has better adaptability to the vibration of the aircraft caused by aerodynamics than the planar array antenna. However, in order to meet the weight reduction requirements of aircraft, flexible conformal antennas mostly adopt plated thin-walled surface structures, which have low rigidity and high flexibility, and are prone to irregular deformation in the clamped state during processing, resulting in deviations b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/362B23K26/00
CPCB23K26/00B23K26/362
Inventor 贾振元马建伟姜文文王健贺广智王福吉刘巍
Owner DALIAN UNIV OF TECH
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