Method for automatically detecting center distance of battery tabs

An automatic detection, battery tab technology, applied in measuring devices, instruments, optical devices, etc., can solve the problems of increasing labor costs and management costs, unable to meet speed requirements, instability, etc., to achieve automatic size detection, Stable, accurate and efficient automatic size detection effect

Active Publication Date: 2013-07-10
无锡埃姆维工业控制设备有限公司
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Problems solved by technology

[0004] At present, in the battery production process, most companies usually rely on traditional measurement methods for the size detection of tabs, such as using tools such as micrometers, vernier calipers or gauges, which require a lot of labor to complete, which not only increases labor costs and management costs, and due

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  • Method for automatically detecting center distance of battery tabs
  • Method for automatically detecting center distance of battery tabs
  • Method for automatically detecting center distance of battery tabs

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[0017] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0018] Firstly, the process parameters of the current batch of tabs are set on the host computer (8), and then the detection is started.

[0019] When starting the test, the product to be tested (5) is manually placed on the feeding area of ​​the test table (4), and the PLC (9) controls the action of the fixture (6) to fix the product to be tested (5), and then the PLC (9) Control the slide rail on the testing platform (4) to move the product to be tested (5) to the right below the industrial CCD (1), that is, the designated area above the organic transparent glass plate (7) in the middle of the testing platform (4). The PLC (9) sends a light source signal to the 7250I / O card (10). After the LED blue backlight (3) is turned on, the PLC (9) sends a trigger signal to the CCD (1) through the upper computer (8), and the CCD ( 1) Complete image ...

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Abstract

The invention discloses a method for automatically detecting center distance of battery tabs. The detection system comprises an image processing unit, a motion control unit, a real-time monitoring unit and an upper computer, wherein the image processing unit performs software processing analysis on the acquired image to detect the size of the center distance of the tabs, namely the process comprises the steps: finding reference lines I1 and I2, a bottom reference line I8, and segments I4, I5, I6 and I7 through an image recognition method; fitting a central line I3 through the lines I1 and I2, respectively determining the vertexes R1 and R2 of positive and negative tabs through the intersection of the lines I4 and I5 and the intersection of the lines I6 and I7, and respectively determining base points R3 and R4 of the positive and negative tabs through the intersection of the lines I4 and I8 and the intersection of the lines I6 and I8; and respectively calculating the distances W1-W4 from the points R1-R4 to the central line I3, wherein the value is the center distance of the tabs. According to the method, the size of the center distance of the battery tabs can be rapidly, accurately and automatically detected.

Description

technical field [0001] The patent of the invention relates to a product size detection method, in particular to a machine vision-based automatic detection method for the center distance of battery lugs, which belongs to the field of product detection. Background technique [0002] Tabs are a raw material for the production of lithium-ion polymer batteries, such as mobile phone batteries, Bluetooth batteries, and notebook batteries used in daily life. The battery is divided into positive and negative poles, and the tab is the metal electric body that leads the positive and negative poles out of the battery cell. In the production process of mobile phone batteries, measuring the size of the positive and negative tabs of the battery is a very important process before battery packaging. Batteries of different specifications have different process requirements for the size of the tabs. [0003] The appearance of the battery to be tested is as follows: figure 1 As shown, the bat...

Claims

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Application Information

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IPC IPC(8): G01B11/14
Inventor 潘丰余俊荣
Owner 无锡埃姆维工业控制设备有限公司
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