CN110763702A - Columnar battery detection device - Google Patents
Columnar battery detection device Download PDFInfo
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- CN110763702A CN110763702A CN201810824033.6A CN201810824033A CN110763702A CN 110763702 A CN110763702 A CN 110763702A CN 201810824033 A CN201810824033 A CN 201810824033A CN 110763702 A CN110763702 A CN 110763702A
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- rollers
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- cylindrical battery
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- line scanning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/952—Inspecting the exterior surface of cylindrical bodies or wires
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- General Physics & Mathematics (AREA)
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a columnar battery detection device which comprises a base, a line scanning photographic lens and a detection object driving mechanism. The line scanning photographic lens is arranged on the base. The detection object driving mechanism includes two rollers. The two rollers are arranged in parallel and pivoted on the base, and a detection object placing area is formed by the two rollers on one side facing the line scanning photographic lens. The line scanning photographic lens corresponds to the object placing area.
Description
Technical Field
The present invention relates to a detection device, and more particularly, to a detection device for detecting the appearance of a cylindrical object to be detected.
Background
Lithium batteries are rechargeable batteries that use lithium metal or lithium alloys as the electrode material. In recent years, lithium batteries have been widely used in the fields of electronic devices, transportation, national defense, military, aerospace, and the like. Currently, the lithium batteries in wide use on the market are 18650, 20700 and 21700 lithium batteries.
In the application of the electric automobile, the lithium battery pack is formed by connecting a large number of lithium batteries in series and parallel, so that the requirements on the safety, the electric property and the like of the lithium batteries are very high. Unqualified indexes of the lithium battery can cause very serious safety accidents, for example, the side surface packaging defects of the lithium battery can cause problems of short circuit carelessness, insufficient sealing performance and the like. In addition, lithium batteries are also widely used in digital electronic products, and if the surfaces of lithium batteries are defective, accidents caused by the safety hazards of the products are concerned by the operators.
The existing battery shell surface detection mode mainly detects appearance manually, but has low manual detection efficiency and high detection cost, and is easy to cause false detection or missing detection. Although providing a detection device who shoots the battery case with industrial camera at present, because the lithium cell appearance is the column, rocks easily at the in-process that the conveyer belt transported, and industrial camera can not the accurate lithium cell of shooing, therefore detection effect also not good. In addition, since the lithium battery is cylindrical, the battery case image captured by the industrial camera cannot show the appearance of the side surface of the battery case in a real size ratio, resulting in a problem that the detection result is affected due to image distortion.
Disclosure of Invention
In view of the above problems, the present invention discloses a cylindrical battery detection device, which is helpful to replace manual detection and solve the problem of poor detection effect of the existing detection device.
The invention discloses a cylindrical battery detection device which comprises a base, a Line scan (Line scan) photographic lens and a detection object driving mechanism. The line scanning photographic lens is arranged on the base. The detection object driving mechanism includes two rollers. The two rollers are arranged in parallel and pivoted on the base, and a detection object placing area is formed by the two rollers on one side facing the line scanning photographic lens. The line scanning photographic lens corresponds to the object placing area.
According to the cylindrical battery detection device disclosed by the invention, the rotation of the two rollers drives the detection object to continuously rotate in the detection object placing area. In cooperation with the rotation of the object to be detected, the line scanning camera lens captures a plurality of one-dimensional images at different positions on the surface of the object to be detected, and the one-dimensional images are synthesized to obtain a two-dimensional plane image, so that a user or image processing software can identify marks or defects on the surface of the object to be detected. Therefore, the non-manual automatic detection is realized by rotating the detection object and capturing the image through the roller of the detection object driving mechanism. Moreover, the line scanning camera lens is used for capturing the image to obtain a two-dimensional image with accurate size ratio, so that the problem that the detection result is influenced by image distortion can be avoided.
The foregoing summary of the invention, as well as the following detailed description of the embodiments, is provided to illustrate and explain the principles and spirit of the invention, and to provide further explanation of the invention as claimed.
Drawings
Fig. 1 is a perspective view of a cylindrical battery detection device according to an embodiment of the invention.
Fig. 2 is an exploded view of the cylindrical battery test device of fig. 1.
Fig. 3 is a side view of the cylindrical battery test device of fig. 1.
Fig. 4 is a partially enlarged schematic view of the cylindrical battery detection device of fig. 3.
Fig. 5 is a schematic diagram of the cylindrical battery detection device of fig. 1.
Fig. 6 is a schematic diagram of the cylindrical battery detection device of fig. 5 for detecting batteries with different sizes.
Wherein, the reference numbers:
1 columnar battery detection device
2. 3 test substance
10 base
110 bearing body
111 chute
120 first mobile platform
130 second mobile platform
131 guide groove
20 line scanning photographic lens
30 detected object driving mechanism
310 roller
320 power source
40 light source
Perpendicular direction of D1
Direction of rotation D2
L ray
R reflected light
S detection object placing area
Detailed Description
The detailed features and advantages of the present invention are described in detail in the following embodiments, which are sufficient for those skilled in the art to understand the technical contents of the present invention and to implement the same, and the related objects and advantages of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification, claims and drawings. The following examples further illustrate aspects of the present invention in detail, but are not intended to limit the scope of the present invention in any way.
Please refer to fig. 1. Fig. 1 is a perspective view of a cylindrical battery detection device according to an embodiment of the invention. In the present embodiment, the cylindrical battery inspection device 1 includes a base 10, a line scan camera lens 20, an object driving mechanism 30 and a light source 40.
Please refer to fig. 2 to fig. 4. Fig. 2 is an exploded view of the cylindrical battery test device of fig. 1. Fig. 3 is a side view of the cylindrical battery test device of fig. 1. Fig. 4 is a partially enlarged schematic view of the cylindrical battery detection device of fig. 3.
The base 10 includes a main body 110, a first movable platform 120 and a second movable platform 130. The first movable platform 120 and the second movable platform 130 are disposed on the main carrying body 110, and the second movable platform 130 is located below the first movable platform 120. The first moving platform 120 and the second moving platform 130 can move back and forth in the vertical direction D1 relative to the main body 110. In the embodiment, the first moving platform 120 and the second moving platform 130 can move together relative to the main bearing body 110, that is, the first moving platform 120 moves together with the second moving platform 130, so that the relative positions of the first moving platform 120 and the second moving platform 130 are maintained unchanged, but the invention is not limited thereto. In other embodiments, the first mobile platform and the second mobile platform can move independently, i.e. the relative positions of the two mobile platforms can change in time.
The line scan camera lens 20 is disposed on the first movable platform 120 of the base 10. The line scan camera lens 20 can capture a one-dimensional line image. When the line scan camera lens 20 and the object to be detected generate relative motion, the line scan camera lens 20 captures a plurality of line images according to the motion speed of the object to be detected, and the line images are combined into a two-dimensional plane image by the processing device. The line scan camera lens 20 can provide better image quality than a general camera lens under the conditions of fast moving speed of the object to be detected and high resolution requirement.
The test object driving mechanism 30 includes two rollers 310 and a power source 320. The two rollers 310 are pivotally mounted on the main body 110 of the base 10 in parallel. In detail, the main body 110 of the base 10 has a sliding slot 111, and one end of one of the rollers 310 is movably disposed in the sliding slot 111. The roller 310 is movable along the chute 111 to adjust a distance from another roller 310.
The two rollers 310 together form a detecting object placing region S on a side facing the line scanning camera lens 20, and the line scanning camera lens 20 corresponds to the detecting object placing region S. In detail, the two rollers 310 are arranged at intervals, and a part of the sensing object placing region S is formed between the two rollers 310. The object placing area S is used for placing the object, and the two rollers 310 are used for rotating the object in the object placing area S. The second moving platform 130 is located between the first moving platform 120 and the drum 310 of the test object driving mechanism 30. The first moving platform 120 and the second moving platform 130 are movable relative to the main body 110 to approach or move away from the roller 310 of the object driving mechanism 30. In the present embodiment, a part of the detecting object placing region S is formed between two rollers 310 arranged at intervals, but the invention is not limited thereto. In other embodiments, two rollers are arranged in close proximity, and the test object placement area is formed above the two rollers.
The power source 320 is, for example and without limitation, a servo motor, which is connected to the two rollers 310 and is disposed at the bearing body 110 of the base 10. In the embodiment, the power source 320 is connected to the two rollers 310 through a transmission gear and a transmission belt, so that the power source 320 can drive the two rollers 310 to rotate in the same direction, but the invention is not limited thereto. In other implementations, the power source is connected to only one of the rollers.
The light source 40 is, for example and without limitation, a laser emitter, and is disposed on the second moving platform 130 of the base 10. In detail, the second moving platform 130 has a guiding slot 131, and the light source 40 is disposed in the guiding slot 131. The light source 40 can move along the guide groove 131 to rotate around the drum 310 of the object driving mechanism 30, thereby adjusting the incident angle of the light emitted from the light source 40 to the object placing region S.
The following describes the detection of the surface of a detection object 2 using the cylindrical battery detection apparatus 1. Referring to fig. 3 to 5, fig. 5 is a schematic view illustrating the cylindrical battery detecting device of fig. 1 performing detection. The test object 2 is transported from an external feeding device (not shown) to the test object placement region S and carried by the two rollers 310 of the test object driving mechanism 30. In the present embodiment, the detector 2 is a cylindrical battery. More specifically, the cylindrical battery includes a cylindrical battery, a button battery or a cylindrical battery with other geometric cross section.
After the object 2 is placed in the object placement area S, the first movable platform 120 is moved to focus the line scan camera lens 20 on the surface of the object 2. In detail, by moving the first moving platform 120, the distance between the line scan photographing lens 20 and the roller 310 of the object driving mechanism 30 can be changed, so that the line scan photographing lens 20 can capture a clear one-dimensional image of the surface of the object 2.
Next, the light source 40 is activated and the light source 40 is moved along the guide groove 131 of the second moving platform 130, so that the light L emitted from the light source 40 irradiates the surface of the test object 2 at a proper incident angle. The line scan photographing lens 20 can receive the reflected light R generated by irradiating the surface of the inspection object 2 to obtain a one-dimensional image. The second moving platform 130 has a guide groove 131 configured to allow the light source 40 to rotate around the drum 310 of the test object driving mechanism 30. More specifically, the light source 40 of the present embodiment rotates around the central axis of the object 2 as a rotation center. In this way, when the intensity of the reflected light R received by the line scanning camera lens 20 is too high or too low, the user can adjust the incident light angle at a proper time to avoid the brightness of the one-dimensional image being too high or too low.
Next, the power source 320 is activated to drive the drum 310 to rotate in the rotating direction D2. The rotating roller 310 drives the object 2 to rotate continuously in the object placing area S along the rotating direction D2. In accordance with the rotation speed of the object 2, the line scanning camera lens 20 captures a plurality of one-dimensional images of different positions on the surface of the object 2 at a certain shooting frequency.
The one-dimensional images are received by the photosensitive elements of the line scan camera lens 20 and converted into electrical signals, and the two-dimensional images are combined into a two-dimensional plane image by an image processing unit (not shown), and finally the two-dimensional plane image is displayed on a screen of a display device (not shown) connected to the line scan camera lens 20. The user or image processing software can identify the mark or defect on the surface of the inspection object 2 based on the two-dimensional planar image, thereby completing the surface inspection.
The cylindrical battery inspection device 1 is not limited to inspecting only cylindrical batteries of a single size. Fig. 6 is a schematic diagram of the cylindrical battery detection device of fig. 5 for detecting batteries with different sizes. In fig. 6, the test object 2 of fig. 5 is replaced with another test object 3. The test object 3 carried on the two rollers 310 has a size larger than that of the test object 2. Specifically, the detector 3 is a cylindrical battery having a large radial dimension. If necessary, one of the rollers 310 may be moved along the slide groove 111 of the carrying body 110 so that a space between the two rollers 310 is adapted to accommodate the test object 3 having a large size.
When the surface of the object 3 is to be inspected, the first moving platform 120 and the second moving platform 130 are moved so that the line scanning photographing lens 20 disposed on the first moving platform 120 and the light source 40 disposed on the second moving platform 130 move upward along the vertical direction D1 to be away from the object 3, and the line scanning photographing lens 20 and the object 3 are focused. Then, the light source 40 is activated and the drum 310 is rotated, and the surface of the test object 3 is tested in the aforementioned operation manner.
In the embodiment, the first movable platform 120 and the second movable platform 130 can move together relative to the main body 110 to form an interlocking relationship. When the line scan camera lens 20 needs to focus on the object to be detected and move the first moving platform 120 up and down, the second moving platform 130 also moves up and down to make the height of the light source 40 illuminate the surface of the object to be detected 3 at a proper incident angle. Therefore, the user can simultaneously make the line scanning photographing lens 20 and the light source 40 at the proper working heights by only performing one moving step without respectively adjusting the heights of the line scanning photographing lens 20 and the light source 40, which is beneficial to improving the detection efficiency.
In summary, in the cylindrical battery detection apparatus disclosed in the present invention, the rotation of the two rollers drives the detection object to rotate continuously in the detection object placement area. In cooperation with the rotation of the object to be detected, the line scanning camera lens captures a plurality of one-dimensional images at different positions on the surface of the object to be detected, and the one-dimensional images are synthesized to obtain a two-dimensional plane image, so that a user or image processing software can identify marks or defects on the surface of the object to be detected. Therefore, the non-manual automatic detection is realized by rotating the detection object and capturing the image through the roller of the detection object driving mechanism. Moreover, the line scanning camera lens is used for capturing the image to obtain a two-dimensional image with accurate size ratio, so that the problem that the detection result is influenced by image distortion can be avoided.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. A cylindrical battery detection device, comprising:
a base;
a line scanning camera lens arranged on the base; and
the line scanning photographic lens comprises a base, a line scanning photographic lens and a detection object driving mechanism, wherein the base is provided with a plurality of rollers, the two rollers are pivoted on the base in a parallel arrangement mode, a detection object placing area is formed on one side of the two rollers facing the line scanning photographic lens, and the line scanning photographic lens corresponds to the detection object placing area.
2. The cylindrical battery detecting device of claim 1, wherein the two rollers are spaced apart from each other, and at least a portion of the detecting object placing region is formed between the two rollers.
3. The cylindrical battery detecting device according to claim 1, wherein the detecting object placing region is used for placing a detecting object, and the two rollers are used for rotating the detecting object in the detecting object placing region.
4. The cylindrical battery detecting device of claim 1, further comprising a light source disposed on the base, wherein the light source is configured to provide light toward the detecting object disposing region.
5. The device as claimed in claim 1, wherein the base comprises a main body and a first movable platform disposed on the main body, the first movable platform is movable relative to the main body to approach or separate from the object driving mechanism, and the line scanning camera lens is disposed on the first movable platform.
6. The cylindrical battery detection device according to claim 5, further comprising a light source for providing light toward the detection object placement region, wherein the base further comprises a second movable platform disposed on the main body, the second movable platform is disposed between the first movable platform and the detection object driving mechanism, the second movable platform is movable relative to the main body to approach or separate from the detection object driving mechanism, and the light source is disposed on the second movable platform.
7. The cylindrical battery detecting device of claim 6, wherein the first moving platform and the second moving platform move together relative to the carrying body.
8. The device as claimed in claim 6, wherein the second movable platform has a guiding slot, and the light source is disposed in the guiding slot and movable along the guiding slot to rotate around the object driving mechanism.
9. The cylindrical battery detecting device according to claim 1, wherein the detecting object driving mechanism further comprises a power source, and the power source is connected to at least one of the two rollers.
10. The cylindrical battery detecting device according to claim 1, wherein the base has a sliding slot, and one end of at least one of the two rollers is movably disposed in the sliding slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810824033.6A CN110763702A (en) | 2018-07-25 | 2018-07-25 | Columnar battery detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810824033.6A CN110763702A (en) | 2018-07-25 | 2018-07-25 | Columnar battery detection device |
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| Publication Number | Publication Date |
|---|---|
| CN110763702A true CN110763702A (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810824033.6A Pending CN110763702A (en) | 2018-07-25 | 2018-07-25 | Columnar battery detection device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752744A (en) * | 2004-09-21 | 2006-03-29 | 日本特殊陶业株式会社 | Check method, mfg. method and check device for distributed substrate |
| KR20110018080A (en) * | 2009-08-17 | 2011-02-23 | 홍익대학교 산학협력단 | Apperance inspecting apparatus of cylinder type rechargeable battery |
| TWM435601U (en) * | 2012-03-09 | 2012-08-11 | Power Assist Instr Scient Corp | Horizontal inspection device |
| CN103454283A (en) * | 2013-09-12 | 2013-12-18 | 电子科技大学 | Line detection system and method |
| CN107796824A (en) * | 2017-11-24 | 2018-03-13 | 深圳市中毅科技有限公司 | A kind of cylindrical battery appearance delection device |
-
2018
- 2018-07-25 CN CN201810824033.6A patent/CN110763702A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752744A (en) * | 2004-09-21 | 2006-03-29 | 日本特殊陶业株式会社 | Check method, mfg. method and check device for distributed substrate |
| KR20110018080A (en) * | 2009-08-17 | 2011-02-23 | 홍익대학교 산학협력단 | Apperance inspecting apparatus of cylinder type rechargeable battery |
| TWM435601U (en) * | 2012-03-09 | 2012-08-11 | Power Assist Instr Scient Corp | Horizontal inspection device |
| CN103454283A (en) * | 2013-09-12 | 2013-12-18 | 电子科技大学 | Line detection system and method |
| CN107796824A (en) * | 2017-11-24 | 2018-03-13 | 深圳市中毅科技有限公司 | A kind of cylindrical battery appearance delection device |
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Application publication date: 20200207 |
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