Rapid assembly and high-precision positioning target base for robot calibration

Abstract

The invention discloses a rapid assembly and high-precision positioning target base for robot calibration. The rapid assembly and high-precision positioning target base for robot calibration comprisesa mounting base, a lower base, an upper base, a first magnet and a second magnet. The mounting base is mounted on a robot base or an extension plate. The upper base is matched with the lower base. The corresponding position of one side end surface of the upper base is provided with a concave cavity for embedding a second magnet. Positioning holes are formed, wherein the positioning holes and positioning bosses are equal in quantity, matched in shape and in one-to-one corresponding with each other in position. The other lateral side is used for embedding a target. The rapid assembly and high-precision positioning target base has the beneficial effects that the rapid assembly and high-precision positioning target base is applied to visual calibration of a robot, the target base is mounted on the robot base or the extension plate; and in the calibration experiment process, a target which needs to be replaced can be quickly and conveniently replaced without repeatedly tightening threads,the working difficulty is low, a large amount of time is saved, the target angle adjusting effect is achieved, and the target posture adjusting time is reduced.

Description

technical field [0001] The invention belongs to the technical field of robots, and in particular relates to a target positioning mounting seat. Background technique [0002] In image measurement and machine vision applications, in order to determine the relationship between the geometric position of a point on the surface of a space object and its corresponding point in the image, it is necessary to establish a geometric model of imaging, which is the camera parameters. The process of obtaining camera parameters is called calibration. Calibration of camera parameters is an important link in the entire application process, and the calibration results directly affect the final results of camera work. [0003] At present, when the camera is used to photograph the test board, most of the calibration boards are fixedly installed on the wall or on the structure frame, and the calibration board is widely used as a checkerboard calibration board. The installation of the target and...

AI Technical Summary

Problems solved by technology

[0004] The procedures for these two connection methods are cumbersome and take a long time to replace, especially the tightening of the screws will even affect the accuracy of the target, which in turn will affect the experimental results and reduce work efficiency

[0005] When the experiment involves the installation and replacement of the target, the calibration plate needs to be temporarily assembled into the positioning frame, and the installation accuracy is not high, which affects the accuracy of the experimental results

Images