Thin-walled part milling system with real-time deformation compensation function

Abstract

The invention discloses a thin-walled part milling system with a real-time deformation compensation function. The thin-walled part milling system with the real-time deformation compensation function comprises a machine tool, a rigid chassis, a stand column, a fixing support, a laser displacement sensor, a displacement compensation controller, a power amplifier and a computer. A sheet to be machined is fixed to the rigid chassis through the stand column and installed on a machining groove of the machine tool, deformation and displacement of the sheet are detected through the laser displacement sensor, the machining path is predicted by the displacement compensation controller through a Bayes estimation algorithm, a cutting depth compensating signal is obtained, and a control command is output to control feeding of a spindle of the machine tool. By means of the thin-walled part milling system with the real-time deformation compensation function, deformation of thin-walled parts in the milling process can be detected in real time, deformation of the thin-walled parts in the subsequent machining path is predicted, Z-direction deformation during milling of the sheet is compensated through real-time control over the Z axis of the machine tool, the effect of the same milling depth of the thin-walled parts on the machining path is ensured, and accordingly the surface quality and precision for milling of the thin-walled parts are greatly improved.

Description

technical field [0001] The invention belongs to the field of thin-wall milling, and more specifically relates to a thin-wall milling system with real-time deformation compensation. Background technique [0002] The manufacturing industry has always played a major role in the process of world industrialization, and the rise of a country's economy largely depends on the development of the manufacturing industry. Thin-walled parts have been widely used in the aerospace field, and its manufacturing capacity and level represent the core competitiveness of the country's manufacturing industry. Thin-walled parts are characterized by large size (such as long trusses, girders, wall panels, etc.), complex structural shapes (such as various forms of cavity structures, depressions, ribs and flanges, with variable bevel angles, space complex surfaces, etc. ), thin-walled structure (wall panels, overall frames, ribs, etc.), high material removal rate (some parts can reach more than 90%),...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects of the prior art, the object of the present invention is to provide a thin-walled part milling system with real-time deformation compensation, which aims to solve the problem that seriously affects the quality and precision of the processed surface, which is easy to occur in the prior art when thin-walled parts are milled. Deformation of thin-walled parts

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