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Composite material laying track micro diameter-changing self-regulating method

A technology of laying trajectory and adjustment method, which is applied in the direction of electrical program control and digital control, and can solve the problems of easy overlap or separation of layers

Active Publication Date: 2009-04-29
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this design method, for small curvature mandrels, the laminates are prone to overlap or separation, which will adversely affect the quality of the product.

Method used

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  • Composite material laying track micro diameter-changing self-regulating method
  • Composite material laying track micro diameter-changing self-regulating method
  • Composite material laying track micro diameter-changing self-regulating method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0023] Specific implementation mode one: combine figure 1 , figure 2 with image 3 Describe this embodiment, this embodiment is composed of ideal laying trajectory curve 1, design trajectory curve 2, mandrel 3, single-step correction trajectory curve 4, correction trajectory curve 5; design the ideal laying trajectory on the surface of mandrel 3 according to working conditions Curve 1, laying trajectory 2 is designed after gridding the mandrel, if there is a deviation h between the design trajectory 2 and the ideal trajectory 1, see figure 1 , the design trajectory 2 needs to be slightly changed to eliminate the error processing; when the machine tool runs to point B, adjust the Y coordinate of the machine tool to the opposite direction of the design trajectory deviation h to ensure the accuracy of the trajectory of the AB section, see figure 2 ; There is a stable deviation h in the adjusted corrected trajectory BD, so it is necessary to make a second adjustment to traject...

specific Embodiment approach 2

[0024] Specific implementation mode two: combination Figure 4 , Figure 5 with Image 6 Describe this embodiment, this embodiment is composed of ideal laying trajectory curve 1, design trajectory curve 2, mandrel 3, single-step correction trajectory curve 6, and correction trajectory curve 7; design the ideal laying trajectory on the surface of mandrel 3 according to working conditions Curve 1, laying trajectory 2 is designed after gridding the mandrel, if there is a deviation h1 between the design trajectory 2 and the ideal trajectory 1, see Figure 4 , the design trajectory 2 needs to be micro-varied to eliminate the error processing; when the machine tool runs to point B, adjust the laying head of the machine tool to the opposite direction of the design trajectory deviation to adjust h1 to ensure the accuracy of the AB segment trajectory, see Figure 5 ; There is a stable deviation h1 in the adjusted corrected trajectory BD, so it is necessary to make a second adjustment...

specific Embodiment approach 3

[0025] Specific implementation mode three: combination Figure 7 , Figure 8 with Figure 9 Describe this embodiment, this embodiment is composed of ideal laying trajectory curve 1, design trajectory curve 2, mandrel 3, single-step correction trajectory curve 8, and correction trajectory curve 9; design the ideal laying trajectory on the surface of mandrel 3 according to working conditions Curve 1, laying trajectory 2 is designed after gridding the mandrel, if there is a deviation h2 between the design trajectory 2 and the ideal trajectory 1, see Figure 7 , the design trajectory 2 needs to be slightly changed to eliminate the error processing; when the machine tool runs to point B, adjust the X coordinate of the machine tool to the opposite direction of the design trajectory deviation h2 to ensure the accuracy of the trajectory of the AB segment, see figure 2 ;There is a stable deviation h2 in the adjusted corrected trajectory BD, so the trajectory 8 needs to be adjusted t...

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Abstract

The invention provides a micro-reducing self-adjusting method used for a composite material laying orbit, and relates to the technical field of composite material laying moulding. The method has the characteristics as follows: error between a designed orbit and an ideal orbit is judged and calculated so as to adjust a two-step laying orbit slightly along a certain direction, namely, an orbit node with error is firstly adjusted to the ideal orbit slightly; and a reverse micro-adjustment is then carried out on a subsequent node correspondingly according to the micro-adjustment. The method can effectively eliminate error of the designed laying orbit; furthermore, the amount of calculation of the error process is not large.

Description

technical field [0001] The invention relates to a micro-variable diameter self-adjusting method for a composite material laying track, which belongs to the design technology of a composite material laying track. Background technique [0002] Fiber tape laying technology is one of the main processes for composite material forming. It has been used in the aerospace field since its beginning, and now it is used in chemical, automotive and other industries. For mandrels with regular shapes, the laying trajectory can be specifically designed according to the specific shape of the mandrel, the laying track is regular, and the laying quality is good; but for the mandrel with complex and irregular shapes, it cannot be expressed by equations, and there is no equation for design. According to this, only three-dimensional software can be used to mesh the mandrel to approximate the contour of the mandrel, and then design the laying trajectory. See reference "Fiber placement path planni...

Claims

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Application Information

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IPC IPC(8): G05B19/19
Inventor 文立伟肖军王显峰李勇齐俊伟张建宝
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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