Cabin body structural component on-machine rapid alignment device and alignment method based on wall thickness and shape constraint

Abstract

The invention discloses a cabin body structural component on-machine rapid alignment device and alignment method based on the wall thickness and a shape constraint. A plane standard block is used to mark a position vector for a sensor and a ladder block is used to calibrate sound velocity and the zero position for a thickness tester. A measurement program is called to collect information about anexterior molded surface and the wall thickness of a measuring point and calculate inner cavity molded surface information. A laser displacement sensor is moved to the corresponding measuring point, and the inner cavity molded surface at the position clamped by four jaws is made axially symmetrical with respect to a rotary center realize rapid alignment of cabin body type parts. The cabin body structural component on-machine rapid alignment device and alignment method based on the wall thickness and the shape constraint can realize on-machine rapid alignment of the cabin body type parts based on digital controlled lathe, the wall thickness can be subjected to homogenization treatment according to a machining allowance constraint condition, the alignment efficiency and precision are both high and the cabin body structural component on-machine rapid alignment device and alignment method based on the wall thickness and the shape constraint have good utility value and application prospect in research of the cabin body structural component alignment and the wall thickness homogenization.

Description

technical field [0001] The invention relates to the field of mechanical design and on-machine measurement, in particular to an on-machine fast alignment device and alignment method for cabin structural parts based on wall thickness and shape constraints. Background technique [0002] In machining, two typical cabin parts are often encountered: one is a linear rotary cabin part, and the other is a curved rotary cabin part. Since the inner wall is required to be aligned when machining the outer circle of the part, and the inner walls of the two types of parts cannot be machined, it is difficult to ensure uniform wall thickness, so it is very difficult to align the workpiece. Due to the irregular and complex shape of the inner wall of the blank, it is very difficult to design the model, and the accuracy is not easy to meet the requirements, so most of them use the method of multi-table alignment to solve this problem. However, this method inevitably has defects such as complex...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of low alignment efficiency, insufficient precision and low degree of automation of the cabin structural parts of the numerical control lathe, and then realize the fast and accurate alignment of the cabin parts on the machine, and lay the foundation for the integration of alignment measurement-processing

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