Transmission case end face large-size form and location tolerance detection device and method based on checkerboard

Abstract

The present invention discloses a transmission case end face large-size form and location tolerance detection device and method based on a checkerboard. A checkerboard standard board movement and support portion is configured to move and support a checkerboard standard board, a dual-camera image collection portion controls cameras to collect images with a tractor transmission case end face location pin hole and the part of the checkerboard standard board, an image processing portion analyzes and processes the images collected by the two cameras; a checkerboard movement controller controls thecheckerboard standard board to move back and forth along a guide rail to drive the checkerboard standard board to applied to the transmission case end face and control the cameras to collect images atthe same time so as to perform processing and extraction of a feature value of the collected images. The transmission case end face large-size form and location tolerance detection device is simple in structure, achieves online detection of the transmission case end ace location pin hole form and location tolerance aiming at the problems that the large size form and location tolerance is difficult to detect and online detection cannot be achieved, and improves the transmission case detection efficiency and quality.

Description

technical field [0001] The invention relates to the field of on-line detection of large-size shape and position tolerances of positioning pin holes on the end face of a tractor transmission box, in particular to a device and method for detecting large-size shape and position tolerances on the end face of a transmission box based on a checkerboard grid. Background technique [0002] The positioning pin hole on the end face of the transmission box of the tractor is the basis of other processes on the end face of the transmission box. However, due to the influence of various factors during the processing of the positioning pin hole, it is difficult to detect the problem in time through the offline position detection of the positioning pin hole, and there is an actual demand for online detection. Detection is not easy to achieve. [0003] The common detection method for the shape and position tolerance of the positioning pin hole on the end face of the transmission box is the d...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages of the existing transmission box end surface positioning pin hole large-size shape and position tolerance detection using a three-coordinate measuring instrument sampling method, slow detection speed, low efficiency, and inability to detect on-line in real time, the present invention adopts a checkerboard-based transmission box The device and method for detecting the large-size shape and position tolerance of the end face realize the online real-time detection and analysis of the large-size shape and position tolerance of the positioning pin hole on the end face of the transmission box. On-line rapid batch detection, timely detection of transmission box quality problems and improvement of quality

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