Large-scale curved-surface thin-wall part robot milling processing system and method

Abstract

The invention relates to the technical field of large thin-wall part processing, in particular to a large-scale curved-surface thin-wall part robot milling processing system and method. The system isprovided with a flexible tool unit, a robot milling unit, a tracking measurement unit, a safety protection unit and a control unit; wherein the robot milling unit is installed on one side of the flexible tool unit fixed to the ground; the tracking measurement unit is installed beside the robot milling unit; the flexible tool unit, the robot milling unit and the tracking measurement unit are surrounded by the safety protection unit; and the control unit is fixed outside the safety protection unit. By means of self-adaptive clamping of a thin-wall part and tracking and monitoring of the postureof a tail end milling main shaft in the robot milling process, the workpiece clamping efficiency and the robot processing precision are improved, the safety protection unit is mainly used for achieving man-machine separation, and the safety of personnel and equipment is guaranteed.

Description

technical field [0001] The invention relates to the technical field of processing large thin-walled parts, in particular to a robot milling system and method for large curved thin-walled parts. Background technique [0002] Large thin-walled parts, such as aircraft skins, rocket fuel storage tanks, etc., are key parts of major equipment such as aviation and aerospace. Such parts often need to process grid structures with different quantities and shapes on one side of the workpiece, so as to reduce the mass of the parts to the greatest extent on the premise of ensuring the structural strength. Due to the large size, low rigidity and irregular shape of such parts, the processing quality has been difficult to guarantee, and the processing efficiency is also very low. At present, the manufacturing methods of the grid structure of such parts mainly include chemical milling methods and mechanical milling methods. The chemical milling method has the disadvantages of long operatio...

AI Technical Summary

Problems solved by technology

The chemical milling method has the disadvantages of long operation time, high operation cost, low machining accuracy, and difficult treatment of cutting waste fluid.

The processing quality and processing efficiency of the horizontal mechanical milling method have been significantly improved, but due to the large size of thin-walled parts, special large-scale horizontal machine tools and matching tooling systems are required for processing, and the processing cost is high. The flexibility is very poor, it is difficult to deal with the processing of large thin-walled parts with various specifications

The robot processing system has good flexibility and can adapt to the application of multi-standard parts, but it is limited by its insufficient rigidity and the inability to directly feed back the end pose, and it cannot be adjusted in real time according to the deviation during operation. low processing occasions

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