CN111729866B

CN111729866B - CCD intelligent detection system

Info

Publication number: CN111729866B
Application number: CN202010560925.7A
Authority: CN
Inventors: 张建华; 何侦元; 陈彬; 叶小三; 蒋勇
Original assignee: Superstar Shenzhen Automation Co ltd
Current assignee: Superstar Shenzhen Automation Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2022-04-12
Anticipated expiration: 2040-06-18
Also published as: CN111729866A

Abstract

The embodiment of the invention provides a CCD intelligent detection system, and relates to the technical field of battery cell detection. The CCD intelligent detection system is applied to detecting the appearance of the battery cell and poor rubberizing, and comprises a turntable module, a turnover module, a polarized light source module and a CCD detection module, wherein the turntable module is used for bearing the battery cell; the overturning module is used for adsorbing the battery cell from the turntable module, overturning the battery cell and then putting the battery cell back to the turntable module; the polarized light source module is used for polishing the battery cell on the turntable module; the CCD detection module is used for detecting the appearance of the battery cell and poor rubberizing.

Description

CCD intelligent detection system

Technical Field

The invention relates to the technical field of battery cell detection, in particular to a CCD intelligent detection system.

Background

After soft packet of lithium ion battery's electric core accomplished the rubberizing on the rubberizing machine, because current rubberizing machine does not have the outward appearance to detect the process, can't detect the outward appearance and the rubberizing effect of electric core, can't select the rubberizing defective products, lead to the bad electric core of rubberizing to flow into next process, seriously influence soft packet of lithium ion battery's production preparation and finished product battery's quality and security performance.

The traditional appearance detection of the battery core rubberizing is manual visual detection, and has high working intensity of personnel, low efficiency and poor consistency; the existing battery cell appearance detection equipment has high over-killing rate and over-killing rate, and cannot meet the requirements of production and application. In the face of increasingly severe requirements on high quality and high yield, the appearance of the battery core and the rubberizing defective products are accurately and quickly screened out, and the method plays an important role in improving the process.

Consequently, design a detecting system of electric core rubberizing outward appearance, can be applied to soft packet of lithium ion battery's electric core rubberizing and accomplish the back, detect the outward appearance and the rubberizing effect of electric core to select the rubberizing defective products, this is the technical problem that needs to solve at present urgently.

Disclosure of Invention

The invention aims to provide a CCD intelligent detection system which can be applied to detecting the appearance and the rubberizing effect of a battery cell after the rubberizing of the battery cell of a soft package lithium ion battery is finished so as to screen out a rubberizing defective product.

Embodiments of the invention may be implemented as follows:

in a first aspect, an embodiment of the present invention provides a CCD intelligent detection system, which is applied to detecting an appearance of a battery cell and a poor adhesive tape, and the system includes:

the turntable module is used for bearing the battery cell;

the overturning module is used for adsorbing the battery cell from the turntable module, overturning the battery cell and then putting the battery cell back to the turntable module;

the polarized light source module is used for polishing the battery cell on the turntable module;

and the CCD detection module is used for detecting the appearance of the battery cell and poor rubberizing.

Firstly, placing a battery cell to be detected on a turntable module, rotating the turntable module, conveying the battery cell to a turning module, and controlling the turning module to turn or not turn the battery cell by a program; then, the cell is sent to a CCD detection module by the turntable module, a light source is turned on by the polarized light source module, and the appearance of one surface of the cell is detected by the CCD detection module; then, the cell is conveyed to an overturning module by the turntable module, the cell is overturned by the overturning module, the cell is conveyed to a CCD (charge coupled device) detection module by the turntable module, a light source is turned on by the polarized light source module, and the appearance of the other surface of the cell is detected by the CCD detection module; and finally, after the rubberizing appearance detection of the front side and the back side of the battery cell is completed, the rotary disc module conveys the battery cell to a discharging position, NG products are removed from the discharging position, and the good products enter the next procedure. Thereby make this device can be applied to soft packet of lithium ion battery's electric core rubberizing and accomplish the back, detect the outward appearance and the rubberizing effect of electric core to select the rubberizing defective products.

In an alternative embodiment, the flipping module comprises:

a first bracket;

the first lifting cylinder is arranged on the first support;

the first sucker is arranged on a piston of the first lifting cylinder and used for sucking the battery cell from the turntable module;

the rotating module is arranged on the first bracket;

a second horizontal cylinder mounted on the rotary module;

and the second sucker is arranged on the piston of the second horizontal cylinder and is used for sucking the battery cell from the first sucker.

Therefore, after the battery cell is turned by the turning module, the position of the battery cell on the turntable module is consistent with the position of the battery cell before turning. Specifically, firstly, a piston of a first lifting cylinder contracts, and a first suction disc adsorbs a battery cell on a turntable module; then, a piston of the first lifting cylinder rises to lift the battery cell; then, a piston of a second horizontal cylinder extends out, and a second sucker is enabled to adsorb the battery cell from the first sucker; then, the rotating module drives the battery cell to turn over; and finally, the piston of the first lifting cylinder contracts, the first sucking disc is made to adsorb the battery cell, and the battery cell is sent back to the original position on the turntable module.

In addition, the turnover module has a compact structure, realizes 180-degree turnover of the battery cell, occupies small space for turnover, and does not deviate from the positioning position of the battery cell during turnover.

In an alternative embodiment, the second horizontal cylinder comprises two pistons moving in opposite directions, each piston having the second suction cup mounted thereon.

In an alternative embodiment, the polarized light source module includes:

a second bracket;

the sliding rod is horizontally connected to the second bracket;

a bar light source slidably mounted on the slide bar.

Therefore, the independently fixed polarized light source is used, the stability of the light source is prevented from being interfered by the actions of other mechanisms, and the precision of detection data is improved.

In an alternative embodiment, the CCD detection module comprises:

a third support;

an adjusting plate mounted on the third bracket;

and the lens mounting module is mounted on the adjusting plate and used for mounting a CCD camera.

Like this, adopt CCD detection module automated inspection, realize the uniformity and the high efficiency that electric core detected, camera lens installing module is fixed by independent third support and regulating plate moreover, avoids other mechanism's action to disturb, and camera lens installing module's height can be adjusted from top to bottom, and it is reliable and stable to shoot the detection. In addition, the structure that the polarizer is added to the lens is matched with the polarized light source module for lighting, the shot photos are obvious in characteristic and clear in contrast, and the automatic production requirement is met.

In an optional embodiment, the number of the turning modules is two, and the two turning modules are arranged at intervals.

In an optional embodiment, the number of the CCD detection modules is two, and the two CCD detection modules are arranged at an interval and are used for respectively detecting the front side and the back side of the battery cell.

In an optional embodiment, the number of the polarized light source modules is two, and the two polarized light source modules and the two CCD detection modules are arranged in one-to-one correspondence.

In an alternative embodiment, the system further comprises:

a fourth bracket;

and the independent light source is arranged on the fourth bracket.

In an optional embodiment, the turntable module comprises a tempered glass boss, a fixed sucker is arranged in the tempered glass boss, and the fixed sucker is used for fixing the battery cell.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a battery cell;

fig. 2 is a schematic structural diagram of a first view angle of a CCD intelligent detection system according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a second view angle of the CCD intelligent detection system according to the embodiment of the present invention;

FIG. 4 is a schematic view of a portion of the structure of FIG. 3;

FIG. 5 is a schematic view of a flipping module;

FIG. 6 is a diagram of the operating state of the flipping module;

FIG. 7 is a schematic structural diagram of a CCD detection module;

fig. 8 is a flowchart of the operation of the CCD intelligent detection system according to the embodiment of the present invention.

Icon: 100-electric core; 200-adhesive tape; 300-CCD intelligent detection system; 310-a carousel module; 311-toughened glass boss; 312-fixed suction cup; 320-bottom light source module; 330-a flip module; 331-a first holder; 332-a first lifting cylinder; 333-first sucker; 340-a rotation module; 341-second horizontal cylinder; 342-a second suction cup; 350-polarized light source module; 351-a second scaffold; 352-a slide bar; 353-bar light source; 360-CCD detection module; 361-a third bracket; 362-adjusting plate; 363-a chute; 364-lens mount module; 370-a fourth support; 380-independent light source.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

Referring to fig. 1, after the adhesive tape 200 is applied to the battery cell 100 of the soft package lithium ion battery on the adhesive tape applying machine, because the existing adhesive tape applying machine has no appearance detection process, the appearance and the adhesive tape applying effect of the battery cell 100 cannot be detected, and an adhesive defective product cannot be selected, so that the battery cell 100 with poor adhesive tape applying performance flows into the next process, and the production of the soft package lithium ion battery and the quality and safety performance of a finished battery are seriously affected.

Referring to fig. 2 and fig. 3, in the present embodiment, after the adhesive tape is applied to the battery cell 100 of the soft package lithium ion battery, the CCD intelligent detection system 300 detects the adhesive tape effect and the front and back appearance of the battery cell 100, and screens out the battery cell 100 with poor adhesive tape and appearance such as adhesive tape leakage, adhesive tape skew, adhesive tape bubble, adhesive tape wrinkle, pole piece damage, pole piece folding, and isolation film folding, so as to improve the battery quality.

The main concept of the CCD intelligent detecting system 300 provided in this embodiment is: the battery cell 100 is conveyed to the photographing station of the CCD camera through the turntable module 310, and the battery cell 100 is turned over by the turning module 330, so that the front and back appearance detection of the battery cell 100 is completed, and the detected battery cell 100 is taken away to the discharging station. In order to ensure that the CCD camera can accurately detect the electrical core 100 with poor appearance and poor adhesive tape, it is necessary to ensure that the electrical core 100 does not slip when the turning module 330 drives the electrical core 100 to rotate. The battery cell 100 cannot normally flow into the next station due to the slipping of the battery cell 100, and the CCD camera is misjudged. In the shooting process of the CCD camera, the polarized light source module 350 needs to be started, so that clear imaging is ensured, the contrast of detection characteristics is obvious, and the detection data precision is improved; before and after the battery cell 100 is turned over, the position of the battery cell 100 falling on the turntable module 310 is unchanged. Because the position of the battery cell 100 changes greatly before and after the battery cell is turned over, the photographing effect is also affected, and misjudgment is caused. The installation height of the CCD camera needs to be adjustable, and the requirement of the CCD camera for the visual field range required by photographing is met by adjusting the height of the CCD camera.

Specifically, the CCD intelligent detecting system 300 includes a turntable module 310, a flipping module 330, a polarized light source module 350 and a CCD detecting module 360.

Referring to fig. 2 to 4, the turntable module 310 includes a tempered glass boss 311, a fixing suction cup 312 is disposed on the tempered glass boss 311, and the fixing suction cup 312 is used for fixing the battery cell 100. The turntable module 310 is preferably a disk structure, and the tempered glass bosses 311 are uniformly spaced around the center of the turntable module 310.

The bottom light source module 320 is installed below the turntable module 310, and the bottom light source module 320 is used for illuminating the space below the turntable module 310, so that the turntable module 310 and the parts below the turntable module can be maintained conveniently.

The number of the polarized light source modules 350 is two, and the two polarized light source modules 350 are arranged at intervals. The polarized light source module 350 includes a second support 351, a slider 352, and a bar light source 353. The second support 351 is a vertical support and is installed at the periphery of the turntable module 310. The slide bar 352 is horizontally connected to the second frame 351, and the number of the slide bars 352 is plural, so that a large number of the bar-shaped light sources 353 can be installed. The bar light source 353 is slidably mounted on the slide bar 352, and the bar light source 353 is a polarized light source. Therefore, the independently fixed polarized light source is used, the stability of the light source is prevented from being interfered by the actions of other mechanisms, and the precision of detection data is improved.

The CCD intelligent detecting system 300 further includes a fourth bracket 370 and independent light sources 380, the fourth bracket 370 is an n-shaped bracket, the turntable module 310 is installed inside the fourth bracket 370, and the plurality of independent light sources 380 are installed on the fourth bracket 370 and located above the turntable module 310.

In addition, all parts in contact with the battery cell 100 are made of non-metallic soft materials, so that damage to the battery cell 100 is prevented.

Referring to fig. 2 and 3, the number of the turning modules 330 is two, and the two turning modules 330 are arranged at intervals. Referring to fig. 5 and 6, the flipping module 330 includes a first bracket 331, a first lifting cylinder 332, a first suction cup 333, a rotating module 340, a second horizontal cylinder 341, and a second suction cup 342. Wherein the first support 331 is installed at the periphery of the turntable module 310. The first elevating cylinder 332 is installed on the first bracket 331 and is vertically disposed. The first suction cup 333 is mounted on the piston of the first lifting cylinder 332 through a bracket, and the first suction cup 333 is used for sucking the battery cell 100 from the turntable module 310.

The rotating module 340 is installed on the first bracket 331, and an axis of the rotating module 340 is horizontally disposed. The second horizontal cylinder 341 is installed on the rotating module 340, the second horizontal cylinder 341 is horizontally disposed, the second horizontal cylinder 341 is a biaxial cylinder, the second horizontal cylinder 341 includes two pistons with opposite moving directions, each piston is installed with a second suction cup 342, and the second suction cups 342 are used for sucking the battery cells 100 from the first suction cups 333.

In this way, after the battery cell 100 is flipped by the flipping module 330, the position of the battery cell 100 on the turntable module 310 coincides with the position before flipping. Specifically, first, the piston of the first lifting cylinder 332 is contracted, and the first suction disc 333 is made to suck the battery cells 100 on the turntable module 310; then, the piston of the first lifting cylinder 332 rises to lift the battery cell 100; then, the piston of the second horizontal cylinder 341 extends out, and the second suction cup 342 sucks the battery cell 100 from the first suction cup 333; then, the rotating module 340 drives the battery cell 100 to turn over; finally, the piston of the first elevation cylinder 332 is contracted, and the first suction pad 333 sucks the battery cell 100 and returns the battery cell 100 to the home position on the turntable module 310.

In addition, the turnover module 330 has a compact structure, realizes 180-degree turnover of the battery cell 100, occupies a small space during turnover, and does not shift the positioning position of the battery cell 100 during turnover.

Referring to fig. 3 and 7, the number of the CCD detection modules 360 is two, the two CCD detection modules 360 are arranged at intervals and are arranged in one-to-one correspondence with the two polarized light source modules 350, and the two CCD detection modules 360 are used for respectively detecting the front side and the back side of the battery cell 100.

The CCD detecting module 360 includes a third supporter 361, an adjusting plate 362, and a lens mounting module 364. The third support 361 is a vertical support, and the third support 361 is installed on the periphery of the turntable module 310. The adjusting plate 362 is mounted on the third bracket 361, a chute 363 extending in the vertical direction is formed in the adjusting plate 362, the lens mounting module 364 is mounted on the adjusting plate 362 and can slide along the chute 363, and the lens mounting module 364 is used for mounting the CCD camera. Like this, adopt 360 automated inspection of CCD detection module, realize the uniformity and the high efficiency that electric core 100 detected, camera lens installation module 364 is fixed by independent third support 361 and regulating plate 362 moreover, avoids other mechanism's action to disturb, and camera lens installation module 364's height can be adjusted from top to bottom, and it is reliable and stable to shoot to detect. In addition, the structure that the polarizer is added on the lens is adopted to match with the polarized light source module 350 for lighting, the characteristics of the shot photos are obvious, the contrast is clear, and the automatic production requirement is met.

Referring to fig. 8, the working process of the CCD intelligent detecting system 300 according to the present embodiment is as follows:

s1: the cells 100 are fed to the carousel module 310.

S2: the turntable module 310 drives the battery cells 100 to a first turning station.

S3: the flipping module 330 flips or does not flip the battery cells 100.

S4: the turntable module 310 drives the battery cell 100 to a first photographing station.

S5: the CCD detection module 360 detects one surface of the battery cell 100.

S6: the turntable module 310 drives the battery cells 100 to a second flipping station.

S7: the flipping module 330 flips the battery cells 100.

S8: the turntable module 310 drives the battery cell 100 to a second photographing station.

S9: the CCD detection module 360 detects the other surface of the battery cell 100.

S10: the turntable module 310 drives the battery cells 100 to a discharging position.

S11: and judging whether the battery cell 100 is good.

When the battery cell 100 is an NG material, executing S12: and removing NG materials.

After performing S12, then perform S13: all modules return to the initial state.

When the battery cell 100 is good, step S14 is executed: and sending the good products to the next working procedure.

After performing S14, S13 is performed.

The CCD intelligent detecting system 300 provided by the embodiment has the following beneficial effects:

1. the device can be applied to detecting the appearance and the rubberizing effect of the battery cell 100 after the rubberizing of the battery cell 100 of the soft package lithium ion battery is finished so as to screen out rubberizing defective products;

2. the CCD detection module 360 is adopted for automatic detection, so that the consistency and the high efficiency of the detection of the battery cell 100 are realized;

3. the structure of the polarizer added on the lens is adopted to be matched with a plurality of groups of polarized light sources for combination and lighting, so that the shot photos have obvious characteristics and clear contrast, and the automatic production requirement is met;

4. the turntable module 310 is used for conveying the battery cell 100, the structure is compact, the overturning module 330 is used for realizing 100-degree overturning of the battery cell, the occupied space for overturning is small, and the positioning position of the battery cell 100 is not deviated during overturning;

5. the lens mounting module 364 is fixed by the independent third bracket 361 and the adjusting plate 362, so that the interference of the actions of other mechanisms is avoided, the height of the lens mounting module 364 can be adjusted up and down, and the photographing detection is stable and reliable.

6. The turning module 330 absorbs the battery core 100 by using a slide rail type sucker structure, thereby effectively avoiding the problem of metal powder generated by a metal sucker rod set.

7. And the independently fixed polarized light source is used, so that the stability of the light source is prevented from being interfered by the actions of other mechanisms, and the data detection precision is improved.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a CCD intelligent detection system, is applied to the rubberizing outward appearance that detects electricity core (100), its characterized in that, the system includes:

the rotating disc module (310) is used for bearing the electric core (100), the rotating disc module (310) comprises a toughened glass boss (311), a fixed sucker (312) is arranged on the toughened glass boss (311), and the fixed sucker (312) is used for fixing the electric core (100);

a turnover module (330) for adsorbing the battery cells (100) from the turntable module (310), and returning the battery cells (100) to the turntable module (310) after being turned over;

a polarized light source module (350) for polishing the battery cells (100) on the turntable module (310);

the device comprises two CCD detection modules (360) used for detecting the rubberized appearance of the battery cell (100), wherein the two CCD detection modules (360) are arranged at intervals and used for respectively detecting the front side and the back side of the battery cell (100);

wherein, the number of the turnover module (330) is two, two of the turnover modules (330) are arranged at intervals, and the turnover module (330) comprises:

a first bracket (331);

a first lifting cylinder (332) mounted on the first bracket (331);

a first suction cup (333) mounted on a piston of the first lifting cylinder (332), the first suction cup (333) being used for sucking the battery core (100) from the turntable module (310);

a rotation module (340) mounted on the first bracket (331);

a second horizontal cylinder (341) mounted on the rotating module (340);

a second suction cup (342) mounted on the piston of the second horizontal cylinder (341), the second suction cup (342) being configured to suck the battery cell (100) from the first suction cup (333);

the second horizontal cylinder (341) comprises two pistons with opposite moving directions, and each piston is provided with the second sucker (342).

2. The CCD intelligent detection system of claim 1, wherein the polarized light source module (350) comprises:

a second bracket (351);

a slide rod (352) horizontally connected to the second bracket (351);

a bar light source (353) slidably mounted on the slide bar (352).

3. The CCD intelligent detection system of claim 1, wherein the CCD detection module (360) comprises:

a third holder (361);

an adjustment plate (362) mounted on the third bracket (361);

a lens mounting module (364) mounted on the adjustment plate (362), the lens mounting module (364) being for mounting a CCD camera.

4. The CCD intelligent detection system according to claim 1, wherein the number of the polarized light source modules (350) is two, and two polarized light source modules (350) are arranged in one-to-one correspondence with two CCD detection modules (360).

5. The CCD intelligent detection system of claim 1, further comprising:

a fourth bracket (370);

an independent light source (380) mounted on the fourth support (370).