A robot precision machining process method and system for thin-walled special-shaped surface

Abstract

The present application relates to the technical field of aero-engine blade processing, and particularly relates to a robot precision machining process method and system for a thin-walled special-shaped surface, wherein the machining process method comprises the following steps: obtaining workpiece point cloud data of a workpiece to be polished, and reconstructing a digital model of the workpiece to be polished based on the workpiece point cloud data; positioning the workpiece to be polished arranged at the tail end of a robot body based on the digital model, and determining a machining allowance distribution; adaptively planning a polishing track of the workpiece to be polished based on the machining allowance distribution and surface quality requirements, and matching corresponding process parameters; and carrying out polishing work on the workpiece to be polished based on the polishing track and the process parameters, and real-time monitoring the polishing process. The above scheme uses a hierarchical strategy of global constant force polishing combined with local high point reciprocating polishing, first completes overall surface finishing with constant polishing force, and then implements multiple reciprocating polishing on the allowance concentrated area, so that the local high point is quickly reduced to within the contour precision threshold.

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