A method of edging dinner plate based on vision control

Abstract

The invention discloses a dinner plate edging method based on vision control. The method comprises the following steps: clamping and locating a dinner plate to be edged, and acquiring images of the dinner plate by virtue of two cameras which are symmetrically arranged at the two sides of the dinner plate; integrating the images through pre-treatment, image registration and fusion processing, and then extracting contour features to generate a complete dinner plate contour drawing; comparing the dinner plate contour drawing with a theoretical CAD model of the dinner plate, and obtaining a central position and a deviation angle of the current clamping and locating; and carrying out coordinate offset in a numerical control system according to the central position and the deviation angle, and controlling an edging unit to realize edging for the dinner plate by the numerical control system after the coordinate offset according to G code corresponding to the theoretical CAD model. According to the method disclosed by the invention, the two cameras which are symmetrically distributed at the two sides of the dinner plate are used for carrying out contour acquisition on the edge of the dinner plate, at a machining station, comprehensive acquisition and control for the contour of the dinner plate can be realized, and the G code is finally used for machining; and the method has the advantages of high edging quality, high machining efficiency and the like.

Description

technical field [0001] The invention belongs to the technical field of automatic edging, and more particularly relates to a method for edging a dinner plate based on vision control. Background technique [0002] As a common utensil in life, the dinner plate needs to be edged during the production process. At present, the edging methods of dinner plates are mainly divided into two categories: manual edging and automatic edging. Among them, automatic edging has been widely used due to its high degree of automation and high efficiency, and the most commonly used in automatic edging It is an edging technology based on visual control. [0003] In the prior art, there are the following technical solutions for edging technology based on visual control: CN201520216408.2 discloses an automated glass edging processing center, which emits infrared rays to the workpiece through an infrared emitter, and uses a scanner to sense the workpiece The infrared positioning point on the contour...

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Problems solved by technology

[0004] However, the above-mentioned edging technology based on vision control has the following problems: it adopts a single-station single-camera solution. Due to inaccurate transmission of the transmission mechanism or inaccurate clamping and positioning, although the edging efficiency is high, the edging effect is poor. , for the edging of high-end green and environmentally friendly tableware products, such as various plant fiber materials and other tableware, the requirements for edging accuracy are relatively high, which cannot meet the use requirements

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