Method and device for scanning surface topography according to shape profile

A surface topography and contour technology, applied in the field of 3D scanning, can solve the problems of affecting scanning efficiency, scanning accuracy, unacceptable time cost, and large environmental factors, so as to avoid errors, improve efficiency, and avoid scanning errors.

Pending Publication Date: 2021-06-04
上海云铸三维科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, the personal ability of the scanning workers limits their ability to deal with different types of workpieces. Differences in experience between different people will lead to differences in scanning methods, and secondly affect scanning efficiency and even scanning accuracy. Secondly, for users with large scanning needs , the large amount of time cost caused by manual scanning is unacceptable
[0003] Automated scanning is a technology that uses robots and 3D scanners to measure the surface data of the measured object in a non-contact manner, which solves the unacceptable problem of time and cost spent in the scanning process, but the existing automated scanning methods usually use autonomous tracking scanning The way to adjust the scan is greatly affected by environmental factors

Method used

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  • Method and device for scanning surface topography according to shape profile
  • Method and device for scanning surface topography according to shape profile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A device according to the present invention is provided, including: a robot arm, a three-dimensional scanning device, and a computer;

[0042] The robot arm is connected to the three-dimensional scanning device and controls the position direction and moving speed of the three-dimensional scanning device by the robot;

[0043] The robot is controlled by the computer to control the three-dimensional scanning device in spatial motion, allowing the three-dimensional scanning device to completely scan all three-dimensional point cloud data on the surface of the workpiece.

[0044] Specifically, the computer includes: a workpiece CAD data analysis system and a path automation system;

[0045] The workpiece CAD data analysis system is introduced into the CAD data of the workpiece, and the imported workpiece CAD data is analyzed, and the contour data of the workpiece is extracted, generate a uniform distributed coordinate point array;

[0046] The path automatic generation system g...

Embodiment 2

[0065] Example 2 is a modification of Example 1

[0066] figure 1 A device for tracking a three-dimensional scan is tracked based on an optical tracking measurement technique based on an optical tracking measurement technique without having to obtain a complete three-dimensional dot cloud data on the surface of the workpiece on the surface of the object surface. Using the computer automatic calculation path to achieve the purpose of automatic precision scanning.

[0067] Specifically, the scanning device includes: 1 robot arm, 2 three-dimensional scanner, 3 computer, wherein 2 three-dimensional scanner and 1 robot arm is fixed, and the mechanical arm is controlled by the three-dimensional scanner moving position and moving speed, the robot arm is subject to the computer The control of the program.

[0068] The present invention provides a method of having a differential profile to scan surface morphology, such as figure 2 Distance

[0069] Step 1: Import the workpiece original CA...

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Abstract

The invention provides a method and a device for scanning a surface topography according to a shape profile. The device comprises a mechanical arm, three-dimensional scanning equipment and a computer. The mechanical arm is connected with the three-dimensional scanning equipment, and the moving position direction and the moving speed of the three-dimensional scanning equipment are controlled by the mechanical arm; and the motion trail of the mechanical arm is controlled by the computer, and the three-dimensional scanning equipment is driven to move in space, so that the three-dimensional scanning equipment completely scans all three-dimensional point cloud data on the surface of a workpiece. According to the invention, manual mobile scanning is replaced, and the scanning efficiency and precision are improved.

Description

Technical field [0001] The present invention relates to the field of three-dimensional scanning techniques, and in particular, to a method and apparatus for a respective profile scan surface morphology. Background technique [0002] During the three-dimensional scanning process, the scanning method and the scan path are different due to the size of the different measurement workpieces, the surface shape and the measurement demand. Traditional handheld scanners or stent scanners require manual adjustment of the location of the measured or scanner, which is often done according to the personal experience of scanner. First, scan workers' personal capabilities limit their ability to handle different types of workpieces, and the difference in experience between different people will result in differences in scanning methods, and the secondary affects scanning efficiency or even scanning precision, second, users with large scan demand A large amount of time costs produced by artificial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24
CPCG01B11/24
Inventor 刘佳周志鹏李俊锋
Owner 上海云铸三维科技有限公司
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