A thread pass-stop detection device and detection method

A detection device and detection method technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problem of low thread detection efficiency, achieve the effect of automatic image detection and avoid manual detection errors

Active Publication Date: 2021-08-24
JIANGSU UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of low thread detection efficiency in the prior art, the present invention provides a high-efficiency thread pass-through detection device and detection method

Method used

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  • A thread pass-stop detection device and detection method
  • A thread pass-stop detection device and detection method

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Embodiment Construction

[0018] Such as figure 1 , a thread detection device, comprising a workbench 1, the workbench 1 is provided with a clamping mechanism for clamping the screw 8 to be tested, the workbench 1 is also provided with an X-direction main camera 2, an X-direction main camera 2 A first backlight board 3 is arranged on the opposite side, and a Y-direction auxiliary camera 4 is also arranged on the workbench 1 , and a second backlight board 5 is arranged on the opposite side of the Y-direction auxiliary camera 4 .

[0019] The clamping mechanism includes V-shaped clamping cylinders 6 on both sides, and the V-shaped clamping cylinders 6 are clamped on the optical axis of the screw 8 .

[0020] A proximity switch 7 is arranged next to the V-shaped clamping cylinder 6 .

[0021] A detection method of the above-mentioned thread on-off detection device, comprising the following steps:

[0022] Step 1: First, place the screw 8 in the middle of the V-shaped block of the V-shaped clamping cylin...

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Abstract

The invention relates to a screw detection device, in particular to a screw thread detection device and detection method, including a workbench, which is provided with a clamping mechanism for clamping the screw to be tested, and an X-direction clamp is also provided on the workbench. For the main camera, a first backlight panel is arranged opposite to the main camera in the X direction, and an auxiliary camera in the Y direction is arranged on the workbench, and a second backlight panel is arranged on the opposite side of the auxiliary camera in the Y direction. The present invention adopts two vertical direction cameras of X and Y The acquisition and correction method of parameters such as screw tooth shape under the condition of backlight is carried out, and the automatic image detection of thread is realized.

Description

technical field [0001] The invention relates to a screw detection device, in particular to a thread pass-through detection device and a detection method. Background technique [0002] Screws are one of the six simple machines invented by human beings. They play an important role in the field of connector products and are often used for the installation of connection accessories and the fixing of cables. Screws have the advantages of easy assembly and easy disassembly, making them used in various fields. If the screw has problems such as no thread, cracking, and size out of tolerance, it will seriously affect the installation and use of the connector product. The current comprehensive detection method is based on the Taylor inclusion principle, using the through-end thread gauge to detect the rotatability of the thread, and using the stop thread The single-item manufacturing deviation is used in gauge testing; however, the single-item detection method is mainly used to analy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/08G01B11/12
CPCG01B11/08G01B11/12
Inventor 杨龙兴顾杰宁杨浩轩张陈
Owner JIANGSU UNIV OF TECH
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