Locomotive framework pull rod seat deformation measurement platform and method based on machine vision

Abstract

The invention discloses a locomotive framework pull rod seat deformation measuring platform and method based on machine vision, and belongs to the technical field of locomotive framework detection. The locomotive framework pull rod seat deformation measuring platform based on machine vision comprises a plurality of universal supporting seats which are installed on a base and used for supporting a locomotive framework. The alignment devices are mounted on the base and used for adjusting the relative position of the locomotive framework on the base, and each alignment device is provided with a distance measuring device; the calibration plate is mounted on the base; the machine vision device is installed on the base and used for detecting a pull rod seat on a locomotive framework, the machine vision device comprises a first sliding table assembly installed on the base and a second sliding table assembly arranged on the first sliding table assembly, and a vision sensor is installed on the second sliding table assembly. According to the invention, automatic alignment of the locomotive framework placed thereon can be realized, the deformation of the pull rod seat can be measured in a full-automatic manner, the measurement efficiency and precision are high, and the industrialization demand of locomotive in-service remanufacturing can be satisfied.

Description

Technical field [0001] The present invention belongs to the field of locomotive frame detection, and in particular, the present invention relates to a machine-visual locomotive frame and method. Background technique [0002] The railway locomotive has the effect of supporting the vehicle body and transmitting power in the service, especially the wheel pair of support components (trolley holder) will be hit in each direction during its service, resulting in a deformation, when When the tensile holder is shifted or reversed, it will affect the installation of the shaft box, change the gap between the rod and the rail, speed the wear of the rod mandrel, affect the overall performance of the locomotive, and increase the safety hazard, therefore, the locomotive is 800,000 Maintenance must be maintained in kilometers or 4 years. The existing detection method is to detect sampling with three-coordinate measuring instrument. After data processing is processed, the measurement results are...

AI Technical Summary

Problems solved by technology

[0002] During the service of the railway locomotive, its bogie bears the role of supporting the car body and transmitting power, especially the supporting parts (tie rod seat) of the wheel set will be impacted in all directions during its service, causing it to deform. When the notch of the tie rod seat is shifted or twisted, it will affect the installation of the axle box, change the gap between the wheel rim and the rail, accelerate the wear of the tie rod mandrel, affect the overall performance of the locomotive and increase the safety hazard. Therefore, every 800,000 locomotives run Kilometers or 4 years must be overhauled

The existing detection method is to use a three-coordinate measuring instrument for detection and sampling, and to obtain the measurement results after data processing by a computer. Due to the difficulty in selecting the measurement reference plane and being limited to the measurement range of the three-coordinate measuring instrument, segmental detection is required. The detection process is complicated, the detection time is long, the cost is high, and the measurement results are often inconsistent with the actual assembly results, causing rework to affect the construction period and increase costs, which cannot meet the needs of the rapid development of railway operations

Images