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Method for automatically detecting missed accessory during automatic assembly of injector by using machine visual system

A machine vision system and automatic detection technology, used in optical device exploration, sorting and other directions, can solve the problems of high labor intensity, low monitoring speed, and workers are prone to visual fatigue, etc., to prolong production time, improve utilization, reduce Detecting the effect of labor intensity

Inactive Publication Date: 2012-01-04
WUXI ZHONGWANG 4D TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems that the existing technology relies on manual inspection for the lack of automatic assembly parts of syringes, workers are prone to visual fatigue, labor intensity is high, the product qualification rate and inspection quality cannot be guaranteed, and the monitoring speed is low. The present invention provides a machine vision The system's automatic detection method for the lack of automatic assembly parts of syringes greatly reduces the labor intensity of workers' detection, with high detection accuracy and fast speed, which can effectively ensure the qualified rate of manufactured products

Method used

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  • Method for automatically detecting missed accessory during automatic assembly of injector by using machine visual system
  • Method for automatically detecting missed accessory during automatic assembly of injector by using machine visual system
  • Method for automatically detecting missed accessory during automatic assembly of injector by using machine visual system

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Experimental program
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Effect test

Embodiment 1

[0032] Embodiment 1, to the detection of qualified syringe product:

[0033] Such as figure 1 The image shown for the automated assembly of the syringe is a visual representation of the absence of fittings.

[0034] Fix the Basler ACA640-100GM industrial camera on the side of the syringe. The distance between the camera and the side of the syringe is about 100mm. Using a Schneider zoom lens, the focal length is adjusted to 8mm, the aperture is adjusted to the maximum value, and the exposure time is adjusted to 0.41ms. A special white LED bowl light source is used to irradiate the same side of the syringe from the camera (positive light), and a semi-closed metal frame is used to shield the influence of external stray light, so as to obtain a relatively stable visual image and reflect the obvious characteristics of the syringe . The LED bowl light source of this project uses the special machine vision light source of CCS Company (the LED bowl light source of other companies ca...

Embodiment 2

[0040] Example 2, detection of syringe products with missing accessories:

[0041] Such as figure 2 The image shown for the automated assembly of the syringe is a visual representation of the absence of fittings.

[0042]Fix the Basler ACA640-100GM industrial camera on the side of the syringe. The distance between the camera and the side of the syringe is about 100mm. Using a Schneider zoom lens, the focal length is adjusted to 8mm, the aperture is adjusted to the maximum value, and the exposure time is adjusted to 0.41ms. A special white LED bowl light source is used to irradiate the same side of the syringe from the camera (positive light), and a semi-closed metal frame is used to shield the influence of external stray light, so as to obtain a relatively stable visual image and reflect the obvious characteristics of the syringe . The LED bowl light source of this project uses the special machine vision light source of CCS Company (the LED bowl light source of other compan...

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Abstract

The invention provides a method for automatically detecting a missed accessory during automatic assembly of an injector by using a machine visual system. The method comprises the following steps of: pre-shooting an assembly image of a qualified injector product to be used as a standard assembly image and stored in a computer; setting the existence of each accessory in the assembly image of the injector as a detection parameter; starting a camera by using an external trigger and control signal to shoot an image of the missed accessory during automatic assembly of the injector operating on line in real time; transmitting the shot image to the computer for detection; processing the transmitted image by using the computer by an image algorithm, and extracting the image of the missed accessory during automatic assembly of the injector; detecting whether any accessory in the standard assembly image has a corresponding image in the assembly image of the injector; judging whether the product is a qualified product or a degraded product which can be processed again; and removing the degraded product which can be processed again from an appointed discharge outlet by using the external trigger and control signal. By the method, the detection precision and the detection speed of the missed accessory during automatic assembly of the injector are high, and the qualification rate of the product can be effectively ensured.

Description

technical field [0001] The invention relates to the technical field of on-line detection by using a machine vision system, in particular to a method for automatically detecting whether there is a lack of accessories in the automatic assembly of syringes by using a machine vision system at the site of automatic assembly of syringes. Background technique [0002] In the assembly workshop of the assembly workshop of the assembly line of the syringe, it is necessary to carry out online detection for the absence of the syringe accessories (that is, whether all the accessories have been assembled). In the prior art, the on-line detection of the lack of automatic assembly parts of syringes relies on manual detection, and about 80 people are arranged beside the syringe parts production machine to detect and deal with the lack of automatic assembly parts of syringes, and the products are classified into qualified products according to the detection results ( Parts are not missing) an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V8/10B07C5/34
Inventor 董仲伟
Owner WUXI ZHONGWANG 4D TECH
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