CN210198978U - Be used for anodal concave point detection device of button cell - Google Patents
Be used for anodal concave point detection device of button cell Download PDFInfo
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- CN210198978U CN210198978U CN201920101752.5U CN201920101752U CN210198978U CN 210198978 U CN210198978 U CN 210198978U CN 201920101752 U CN201920101752 U CN 201920101752U CN 210198978 U CN210198978 U CN 210198978U
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- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 238000005286 illumination Methods 0.000 claims abstract description 7
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- 230000007547 defect Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 238000003384 imaging method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
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Abstract
The utility model provides a button cell anode concave point detection device, which comprises a camera, a lens, an annular light source and a reflective grating; the camera is vertical to the horizontal plane and fixed above the horizontal plane, and the camera, the lens annular light source and the reflective grating form a set of imaging system; the reflective grating is arranged above the light source and is arranged close to the camera lens, and the reflective grating stripes can not shield the focusing position of the camera lens; the method can avoid the interference of button battery anode fonts on pit detection; the annular light source and the illumination method modulated by the reflective grating are combined, so that the contrast between the button cell concave point defect imaging and a normal area is greatly improved, and the interference of the button cell anode font to the concave point detection can be avoided.
Description
Technical Field
The utility model relates to a product detection technology field, concretely relates to be used for anodal concave point detection device of button cell.
Background
The button cell is one of the cells widely used for electronic components, the performance and the quality of the button cell are related to whether electronic equipment can normally operate, the detection of the button cell at present mainly comprises cell capacitance and appearance defects, and the appearance defects mainly comprise dirt, scratches, air inflation, pits, shell breaking, cover breaking, burrs and the like.
Patent number is CN204008488 and discloses a button cell automated inspection machine, has realized the detection to button cell's surperficial burr characteristic and has reached the automatic purpose of branch material, but can only detect button cell burr, can't detect button cell's concave point.
Patent No. CN103940584A discloses a button cell detection system, which realizes multi-path imaging of a single camera by reflection of a reflective mirror so as to detect the appearance of a button cell, but this detection method is only suitable for laboratory detection, and is not suitable for large-scale detection required by industrial production.
Patent No. CN108535655A discloses a button cell detection device, which can realize full automatic detection of button cell voltage, but cannot detect the appearance of button cell.
The above patents are all directed at the obvious defects of dirt, large burrs and the like of the button battery or the residual electric quantity of the button battery is detected, and the positive concave point of the button battery is not detected; the button cell positive pole concave point detects and belongs to the important project in the appearance detects, and the existence of button cell concave point not only influences beautifully, can all have certain influence to the security that the button cell later stage was used and the stability of quality moreover, so can be on an urgent need now one kind can be extensive, the device of high efficiency detection button cell positive pole concave point.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model provides a be used for anodal concave point detection device of button cell.
The utility model provides a technical scheme of above-mentioned problem does: a detection device for button cell positive pole concave points comprises a camera, a lens, an annular light source, a reflective grating, a support, a power supply, a camera power supply controller, a light source controller, a computer, a first power line, a second power line, a third power line, a first data line, a second data line, a third data line and an industrial camera interface;
the camera and the lens are arranged on the bracket in a manner of being vertical to the horizontal plane; the minimum visual field of the lens can meet the detection of the button cell with the maximum diameter;
the reflection grating and the annular light source are perpendicular to the horizontal plane and are arranged on the bracket, the reflection grating is positioned above the annular light source, the reflection grating and the lens are arranged in close proximity, and the distance between the reflection grating and the lens is 1-10 mm;
the camera, the lens, the annular light source and the reflective grating form a set of illumination projection system, and the light and shade stripes are projected to the button cell to be detected;
further, the power supply is electrically connected with the camera power controller and the light source controller through a first power line and a second power line respectively; the light source controller is electrically connected with the camera power controller through a first data line; the light source controller is electrically connected with the annular light source through a second data line; the camera power supply controller is electrically connected with the camera through a third data line and a third power line, and the camera is connected with the computer through an industrial camera interface; the computer is used for controlling the real-time acquisition and result analysis of the camera and realizing the detection of the defects of the positive concave points of the button battery to be detected by a digital image processing method.
Furthermore, the digital image processing method comprises the steps of firstly extracting a bright grid line region, then classifying the bright grid line region by analyzing the shape characteristics of the region, and finally screening and framing the concave point region by the width of the external rectangle.
The utility model discloses beneficial effect has:
(1) the utility model provides a button cell anode concave point detection device and method, which can realize the automatic detection of button cell concave points;
(2) by combining the annular light source with the illumination method modulated by the reflective grating, the contrast between the button cell pit defect imaging and a normal area is greatly improved, and the interference of the button cell anode font to pit detection can be avoided;
(3) the adjustment of the pit detection precision can be realized by changing the width of the reflective grating and adjusting the parameters of the defect identification algorithm.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an electrical connection diagram of the present invention.
Fig. 3 is a flow chart of the detection of the present invention.
Fig. 4 is a diagram of the detection result of the present invention.
In the figure: the method comprises the following steps of 1-a camera, 2-a lens, 3-a light reflection grating, 4-a ring-shaped light source, 5-a button cell to be detected, 6-a support, 7-a power supply, 8-a camera power supply controller, 9-a light source controller, 10-a computer, 11-a first power line, 12-a second power line, 13-a third power line, 14-a first data line, 15-a second data line, 16-a third data line and 17-an industrial camera interface.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
A device for detecting button cell positive concave points comprises a camera 1, a lens 2, a reflective grating 3, an annular light source 4, a button cell 5 to be detected and a bracket 6;
the camera 1 and the lens 2 are arranged on the bracket 6 in a way of being vertical to the horizontal plane, the distance between the camera 1 and the detected button cell 5 is determined by the parameters of the camera 1 and the lens 2, and the minimum visual field of the camera needs to meet the detected button cell 5 with the maximum diameter;
the reflection grating 3 and the annular light source 4 are perpendicular to the horizontal plane and are arranged on the bracket 6, the reflection grating 3 is positioned above the annular light source 4, the reflection grating 3 is arranged close to the lens 2, and the distance between the reflection grating 3 and the lens 2 is 1mm-10 mm;
the camera 1, the lens 2, the annular light source 4 and the reflective grating 3 form a set of illumination projection system, the illumination brightness of the annular light source 4 is uniform, and the surface of the annular light source 4 back to the button cell 5 to be detected is polished; under the irradiation of the annular light source 4, the reflective grating 3 is projected on the surface of the anode of the button cell 5 to be detected, and light and dark stripes alternate with each other appear and are projected to the button cell 5 to be detected; when the surface of the anode of the button battery 5 to be detected has the concave points, the stripes deform, and the concave points are detected at the position, which indicates that the button battery 5 to be detected is an unqualified product.
As shown in fig. 2, the power supply 7 is connected to the camera power supply controller 8 and the light source controller 9 through the first power line 11 and the second power line 12, respectively, and the light source controller 9 is connected to the camera light source controller 8 through the first data line 14, so as to achieve synchronization between image acquisition and light source light supplement; the light source controller 9 is connected with the annular light source 3 through a second data line 15 to realize illumination control of the annular light source; the camera power supply controller 8 is connected with the camera 1 through a third data line 16 and a third power line 13, and the camera 1 is connected with the computer 10 through an industrial camera interface 17; the computer is used for controlling the real-time acquisition and result analysis of the camera and realizing the detection of the defects of the positive concave points of the button battery to be detected by a digital image processing method.
As shown in fig. 3, the computer 10 reads the picture taken by the camera 1, extracts the bright stripes through the global threshold, fills the holes through the closing operation, eliminates the influence of surface contamination on the detection through area screening, outputs the circumscribed rectangle by using the coordinates of each bright stripe, finally realizes the classification of the bright stripes through the screening of the width of the rectangle, and marks out the deformation region, i.e., the depression region.
As shown in fig. 4, the projected stripes of the reflective grating 3 deform on the surface of the positive electrode of the button cell 5, and then the concave point defect exists.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.
Claims (3)
1. A detection device for button cell positive pole concave points is characterized by comprising a camera, a lens, an annular light source, a reflective grating, a support, a power supply, a camera power supply controller, a light source controller, a computer, a first power line, a second power line, a third power line, a first data line, a second data line, a third data line and an industrial camera interface;
the camera and the lens are arranged on the bracket perpendicular to the horizontal plane; the reflection grating and the annular light source are perpendicular to the horizontal plane and are arranged on the bracket, the reflection grating is positioned above the annular light source, the reflection grating and the lens are arranged in close proximity, and the distance between the reflection grating and the lens is 1mm-10 mm;
the camera, the lens, the annular light source and the reflective grating form a set of illumination projection system, and the light and shade stripes are projected to the button cell to be detected.
2. The button cell positive electrode pit detection device according to claim 1, wherein the power supply is electrically connected to the camera power controller and the light source controller through a first power supply line and a second power supply line, respectively; the light source controller is electrically connected with the camera power controller through a first data line; the light source controller is electrically connected with the annular light source through a second data line; the camera power supply controller is electrically connected with the camera through a third data line and a third power line, and the camera is connected with the computer through an industrial camera interface; the computer is used for controlling the real-time acquisition and result analysis of the camera.
3. The device as claimed in claim 1, wherein the minimum visual field of the lens is sufficient for detecting the button cell to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920101752.5U CN210198978U (en) | 2019-01-22 | 2019-01-22 | Be used for anodal concave point detection device of button cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920101752.5U CN210198978U (en) | 2019-01-22 | 2019-01-22 | Be used for anodal concave point detection device of button cell |
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| CN210198978U true CN210198978U (en) | 2020-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108710A (en) * | 2019-01-22 | 2019-08-09 | 镇江苏仪德科技有限公司 | One kind being used for button cell anode concave point detection device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108710A (en) * | 2019-01-22 | 2019-08-09 | 镇江苏仪德科技有限公司 | One kind being used for button cell anode concave point detection device and method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhenjiang yinuoweisi Intelligent Technology Co.,Ltd. Assignor: ZHENJIANG SYD TECHNOLOGY Co.,Ltd. Contract record no.: X2022320000303 Denomination of utility model: A device for detecting positive pits of button battery Granted publication date: 20200327 License type: Common License Record date: 20221210 |
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| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Zhenjiang yinuoweisi Intelligent Technology Co.,Ltd. Assignor: ZHENJIANG SYD TECHNOLOGY Co.,Ltd. Contract record no.: X2022320000303 Date of cancellation: 20240116 |