Online sensing method for spinning forming state

A spinning forming, state technology, applied in the direction of instrument, design optimization/simulation, electrical digital data processing, etc., can solve the problems of high surface quality requirements, difficult application, inability to meet, etc., to improve the degree of intelligence, reduce flange The degree of fluctuation, the effect of ensuring accuracy
CN113642180AActive Publication Date: 2021-11-12NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV
Publication Date
2021-11-12

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Abstract

The invention belongs to the technical field of intelligent manufacturing, and discloses a spinning forming state online sensing method. The method comprises the following steps: acquiring two geometric parameters, namely a spinning roller acting radius r and a flange width d, representing the instantaneous configuration of a curved surface part based on a laser scanner; acquiring two material parameters, namely the elasticity modulus E and the Poisson ratio mu of the blank through a uniaxial tensile test; calculating the instantaneous normalized thinning rate of the curved surface part according to the four parameters in combination with an instantaneous normalized thinning rate formula; on the basis, achieving the online sensing of the spinning forming state of the workpiece according to the instantaneous normalized thinning rate. According to the method, the relation between the instantaneous normalized thinning rate formula of the curved surface part and the spinning forming state and the relation between the instantaneous normalized thinning rate and the spinning forming state have definite theoretical and practical bases, the accuracy of the online sensing result of the spinning forming state of the curved surface part can be ensured, and a basic basis can be provided for adjusting process parameters in real time in the spinning forming process.
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Description

technical field

[0001] The invention belongs to the technical field of intelligent manufacturing, and relates to the application of laser online measurement in spinning forming technology, in particular to an online sensing method of spinning forming state. Background technique

[0002] Complex curved surface parts have the advantages of high structural strength, light weight and high reliability, and are widely used in aerospace fields. Spinning forming technology is an advanced plastic forming technology, which has the characteristics of low cost, short processing cycle and high flexibility. It is an important forming method for complex curved surface parts. During the spinning forming process, the blank is fixed by the tail top and the universal clamping die and rotated at a certain speed. Through the design and control of the spinning process parameters, the spinning wheel exerts local loading on the blank, resulting in continuous local deformation and then realizing the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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