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Surface roughness prediction method for side milling of thin-walled parts based on monitoring acceleration

A technology for surface roughness and thin-walled parts processing, which is applied in the field of surface roughness prediction for side milling of thin-walled parts based on monitoring acceleration, can solve problems such as poor practicability, and achieve low cost, simple method, small quality and volume Effect

Active Publication Date: 2022-04-15
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0004] In order to overcome the shortcomings of the poor practicability of the existing methods for predicting the surface roughness of side milling of thin-walled parts, the present invention provides a method for predicting the surface roughness of side milling of thin-walled parts based on monitoring acceleration

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  • Surface roughness prediction method for side milling of thin-walled parts based on monitoring acceleration
  • Surface roughness prediction method for side milling of thin-walled parts based on monitoring acceleration
  • Surface roughness prediction method for side milling of thin-walled parts based on monitoring acceleration

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Embodiment Construction

[0037] refer to Figure 1-4 . The specific steps of the surface roughness prediction method for side milling of thin-walled parts based on the monitoring acceleration of the present invention are as follows:

[0038] Step 1. Determine whether the processing method of the thin-walled part is side milling. If it is side milling, proceed to the second step; otherwise, this method is not applicable. This experiment uses side milling, so the second step can be performed.

[0039] Step 2. Install the thin-walled part 6 on the fixture 7 of the machine tool table 5. The thin-walled part 6 used in this experiment is a titanium alloy with a size of 100mm×100mm×8mm and an aspect ratio of 12.5, which meets the requirement of the aspect ratio.

[0040] Step 3, the installation of the acceleration sensor 2 and the debugging of the acquisition equipment.

[0041]The acceleration sensor 2 is installed on the other side of the thin-walled part 6 to be processed in an axisymmetric position, ...

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Abstract

The invention discloses a method for predicting surface roughness of side milling of thin-walled parts based on monitoring acceleration, which is used to solve the technical problem of poor practicability of the existing method for predicting surface roughness of side milling of thin-walled parts. The technical solution is to use an acceleration sensor during side milling to obtain the acceleration signal during milling of thin-walled parts through monitoring, and then use the correction coefficient to calculate the vibration acceleration during the entire side milling process, and then measure the thin-walled parts offline. The surface profile height change curve of the area, the surface roughness Ra value of the processing area is obtained by calculation, and the coupling prediction model of surface roughness and acceleration is established to realize the prediction of surface roughness during processing. The invention considers the influence of the vibration on the surface topography under the same set of processing parameters, the method is simple, the amount of data is small, and the prediction accuracy is high, so the practicability is good.

Description

technical field [0001] The invention relates to a method for predicting surface roughness of side milling of thin-walled parts, in particular to a method for predicting surface roughness of side milling of thin-walled parts based on monitoring acceleration. Background technique [0002] With the development of the machinery industry, people put forward higher and higher requirements for the performance of the machine, which makes the parts need to have higher quality in the process of processing, and more importantly, the quality of the processed surface is good Bad, which directly affects the service life of the parts. For example, in some high-temperature, high-pressure and high-frequency alternating load environments, the quality of the processed surface directly determines the service life of the part. Good processing quality can not only improve the service life and processing efficiency of the machine, but also play a decisive role in the forming accuracy of parts. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 张定华姚泽全罗明梅嘉炜樊畅郑志阳
Owner NORTHWESTERN POLYTECHNICAL UNIV
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