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Measuring device and method for hole measuring with hand-held scanner

A measurement method and technology of a measurement device are applied in the field of scanners and can solve problems such as affecting the accuracy of hole position measurement and positioning.

Active Publication Date: 2021-05-07
ZG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, there are many reasons for "difficult holes", and a single image preprocessing algorithm is difficult to meet different situations. On the other hand, the image preprocessing method will inevitably cause certain changes to the original image, which will affect the hole. Bit measurement positioning accuracy

Method used

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  • Measuring device and method for hole measuring with hand-held scanner
  • Measuring device and method for hole measuring with hand-held scanner
  • Measuring device and method for hole measuring with hand-held scanner

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Embodiment Construction

[0020] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0021] Such as Figure 4 with Figure 5 As shown, the measuring device for hole measurement with a hand-held scanner provided by the embodiment of the present invention includes a sphere 1 and a flat plate 2 for placing on the hole position 4 of the workpiece to be measured, and one side of the flat plate 2 faces the sphere 1 and is fixed with the sphere 1 For connection, at least three identification figures 21 are arranged on the other side of the tablet 2 .

[0022] In this embodiment, since the cross section of the hole 4 of the workpiece to be measured is usually circular, the sphere 1 part of the measuring device is placed at the hole 4 of the workpiece to be measured, especially the "difficult hole". When t...

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Abstract

The present invention relates to a measuring device and method for measuring holes with a hand-held scanner. The device includes a sphere and a flat plate placed on the hole of the workpiece to be tested, one side of the flat plate faces the sphere and is fixedly connected with the sphere, and the other surface of the flat plate is provided with at least three identification figures. The technical solution provided by the invention can effectively improve the measurement and positioning accuracy of the "difficult hole" hole position on the workpiece.

Description

technical field [0001] The invention relates to the technical field of scanners, in particular to a measuring device and method for measuring holes with a hand-held scanner. Background technique [0002] When the handheld 3D scanner is used to measure the hole position of the workpiece, it is usually required that the collected image including the hole position meet the condition of "black inside and white outside", that is, the hole position image collected by the 3D scanner should satisfy that the inside of the hole position is black with white exterior surfaces, that is, as attached figure 1 shown. [0003] However, due to rust, heat treatment, oil stains, scratches and markers, etc., the surface of the metal material of the workpiece will be dark, which does not meet the condition of "black inside and white outside". figure 2 shown. At the same time, if the hole to be measured is shallow and its bottom has very strong reflection, it will not meet the condition of "bl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00G01B11/24
CPCG01B11/002G01B11/24
Inventor 郑顺义王晓南朱中尉
Owner ZG TECH CO LTD
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