Novel measurement method for circular workpiece detection based on visual device

A workpiece detection and vision device technology, applied in auxiliary devices, measuring devices, optical devices, etc., can solve problems such as inaccurate correction of workpieces, and achieve the effect of solving deviations, solving inaccurate corrections, and simplifying command operations.

CN112985294APending Publication Date: 2021-06-18TANGSHAN YINGLAI SCI & TECH
3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-06-18

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a novel measurement method for circular workpiece detection based on a visual device. The method specifically comprises the steps of S1, obtaining a scanning coordinate value, specifically, scanning and recognizing image information through a visual system to obtain correct position information P1, P2 and P3, storing the correct position information P1, P2 and P3 in a position register, S2, solving a circle center, specifically, establishing an equation through constraint conditions that three points are coplanar and the coordinates from the three points to the space circle center are equal, and solving the coordinate 0 of the circle center; S3, solving a coordinate system, specifically, taking the three points 0, P2' and P3' as references, establishing a coordinate system base1; and S4, correcting the coordinates. According to the novel measurement method for circular workpiece detection based on the visual device, the functionality is more than that of existing locating, deviation caused by workpiece translation can be solved, deviation caused by rotation can also be solved, instruction operation is greatly simplified, locating operation can be completed only through three times of scanning, and the problem of inaccurate correction caused by workpiece rotation can be solved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of workpiece detection, in particular to a novel measurement method for circular workpiece detection based on a vision device. Background technique

[0002] With the improvement of my country's industrial automation level, industrial robots are used more and more. Before welding production, workers need to manually control the robot to drag the welding torch according to the actual welding trajectory and welding sequence according to the specific working conditions of the welding seam. Predictive teaching, save the position information of the teaching point on the weld track. In industrial welding production, the welding environment cannot be static. The position is shifted, which affects the welding quality. In order to meet the high precision and high efficiency requirements of robot welding production, the seam tracking module based on various sensors has become a key component of the robot welding system. ...

Examples

Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] see Figure 1-2 , an embodiment of the present invention provides a technical solution: a new measurement method for circular workpiece detection based on a vision device, which specifically includes the following steps:

[0037] S1. Obtain the scanning coordinate value: Scan and identify the image information through the visual system to obtain the correct position information P1, P2, P3, and store it in the position register. The visual system uses a ...