Non-contact measuring device and method for assisting positioning through vision

Abstract

The invention relates to a non-contact measuring device and method for assisting positioning through vision in the technical field of measurement. The device provided by the invention comprises a displacement sensor, an image sensor, an image display module, a data acquisition module, a data processing module and a fixing device, wherein the displacement sensor is connected with the data acquisition module; the data acquisition module is connected with the data processing module; the image display module is connected with the image sensor; and the scanning head of the displacement sensor and the image sensor are respectively fixed on the fixing device, and the installation direction of the image sensor and the movement direction of the scanning head of the displacement sensor are mutually perpendicular. The method provided by the invention comprises the following steps: controlling the scanning head of the displacement sensor to move along the direction to be measured of a product; assisting the scanning head to be aligned to multiple position points of the product through the image vision; and inspecting the production quality of the product after measuring the length distances among the multiple position points. In the invention, the non-contact measurement is realized; the measuring application range is enlarged; and the accuracy and efficiency of positioning and measuring are effectively improved.

Description

technical field [0001] The present invention relates to a device and method in the technical field of measurement, in particular to a non-contact measuring device and method for visually assisted positioning. Background technique [0002] In the manufacture of high-quality products and efficient production environments, measurement technology plays a large role and its importance is increasing day by day. At present, the production site attaches great importance to improving processing efficiency and reducing production costs. Among them, the most important thing is to produce high-quality products. Therefore, strict quality management must be implemented. Only under the premise of ensuring high-quality production can the manufacturing industry survive and develop. With the diversification and development of detection product types, it is not convenient to directly measure products with surface marks that are inconvenient to locate or the beginning and end marks are not on ...

AI Technical Summary

Problems solved by technology

However, this technology has the following disadvantages: [1] Due to the ray width factor of the laser, there is a large error in the judgment of the positioning of the mark; [2] The laser beam is not easy to locate

However, this technology has the following disadvantages: [1] The measurement range is small, limited to 50cm to 100cm; [2] The structural requirements for the tested components are relatively simple

However, this technology has the following disadvantages: [1] It cannot guarantee that the transmitting end coincides with the starting end of the measured object, and it is not easy to locate; [2] It has high requirements for the flatness of the reflecting surface; [3] This invention is not suitable for soft Product Measurement

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