Online measurement and control method for processed thickness in mirror milling process

Abstract

The invention relates to an online measure and control method for processed thickness during the mirror milling process. The method comprises the following steps of: obtaining thickness data, obtaining the contour thickness information of a metal piece through an electromagnetic ultrasonic thickness measuring probe and transmitting the information to an embedded control system for online measurement and control; obtaining spindle cutter data, collecting the spindle cutter data of a device and transmitting to the embedded control system; obtaining support axis data, collecting the data of a support axis and transmitting to the embedded control system; analyzing and processing the data, fusing the obtained data through a data association network, and analyzing and processing through the embedded control system; and getting result data feedback, comparing the result data analyzed and processed by online measure and control embedded control system with pre-set processing data model, sending result data feedback to the corresponding control axis, adjusting the spindle cutter feed of a mirror milling device and the movement of the support axis to adapt the spindle cutter feed and the support shaft movement to the contour thickness of the metal part.

Description

technical field [0001] The invention relates to the technical field of processing thin-walled parts, in particular to an online measurement and control method for processing thickness during mirror image milling. Background technique [0002] Thin-walled structural parts include aircraft skins, automobile panels, etc. The application requirements for aircraft large metal fuselage skin parts are huge, and the complexity and processing accuracy of skin structures change greatly with the improvement of aircraft performance requirements , The traditional processing technology can no longer meet the current requirements of green environmental protection, energy saving and emission reduction, and processing accuracy. [0003] Mirror milling technology is an environmentally friendly and sustainable green manufacturing method for high-efficiency and high-precision fuselage skin panel parts. However, for large-scale skin parts, the skin surface is supported by a single point, and th...

AI Technical Summary

Problems solved by technology

When using the existing mirror milling equipment, it is found that there are thermal deformation and elastic deformation of the parts during processing, and at the same time, due to insufficient rigidity, it will also cause chatter deformation

If mirror milling is performed according to the original mathematical model and measurement data model, the cutting depth on the surface of the part will deviate from the original design; then the uniformity of the thickness of the entire part will be completely destroyed

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