Online detection device and method for cylindrical component butt joint

Abstract

The invention relates to an online detection device and method for cylindrical component butt joint, and belongs to the technical field of advanced assembling manufacturing. The online detection device applicable to cylindrical components aims at achieving real-time online detection in the cylindrical component butt joint process, meeting the high butt joint precision of the cylindrical components and the like. The device can detect the coaxiality of the cylindrical components and a gap between butt joint faces in real time in the butt joint process, the butt joint process precision is controllable, and finally the product precision is improved. In order to overcome the technical defect that real-time online detection cannot be achieved during cylindrical component butt joint, the online detection device for the cylindrical component butt joint process is developed. The postures of the cylindrical components are detected through real-time and dynamic detection of the gap d between the butt joint faces, the distance between a sensor and the inner circle faces of the cylindrical components and other technological key features, the relative positions of the cylindrical components are adjusted according to the measured result, online detection and real-time controllability in the butt joint process are achieved, and the butt joint precision of the cylindrical components is improved.

Description

technical field [0001] The invention relates to an online detection device and method for the butt joint of a cylindrical member. The method aims at real-time online detection of the butt joint process of the cylindrical member and satisfies the high butt joint accuracy of the cylindrical member. Online detection device. During the docking process, the device can detect the coaxiality of the cylindrical member and the gap between the docking surfaces in real time, realize the controllable precision of the docking process, and finally improve the product precision, and belongs to the field of advanced assembly and manufacturing technology. Background technique [0002] In the process of accurate docking and assembly of parts, there are mainly two methods for online detection, adjustment and positioning of parts attitude at home and abroad: one is to dock on the CNC equipment, which uses the coordinate movement accuracy of the CNC equipment itself or other accessories attached...

AI Technical Summary

Problems solved by technology

[0002] In the process of accurate docking and assembly of parts, there are mainly two methods for online detection, adjustment and positioning of parts attitude at home and abroad: one is to dock on the CNC equipment, which uses the coordinate movement accuracy of the CNC equipment itself or other accessories attached to it. The measurement tool measures the characteristic surface of the component by contact and detects the position and state of the component. However, it can only detect a single point or within a certain range at a time during measurement, and cannot perform a full range of attitude detection on the component; the other is to use laser Tracker, laser interferometer and other large-scale optical equipment, input the product digital model into the optical measurement equipment software system, detect the detection points on the parts through optical and other non-contact measurement methods, and align the product measurement coordinate system with the theoretical digital-analog coordinate system , establish an online detection and measurement module, and obtain real-time deviation values ​​by comparing the measured coordinate values ​​of specific detection points with the theoretical coordinate values

However, in reality, due to the limitations of the structure of the cylindrical member itself and the structure of the docking frame, the light is blocked during measurement and cannot be detected

In addition, a single optical device cannot detect most of the measurement points of the product, so multiple devices need to be arranged at the same time, which has strict requirements on cost and site area

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