CN114279384A - Device and method for measuring thickness of lithium ion battery pole piece after coating - Google Patents
Device and method for measuring thickness of lithium ion battery pole piece after coating Download PDFInfo
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- CN114279384A CN114279384A CN202111356400.2A CN202111356400A CN114279384A CN 114279384 A CN114279384 A CN 114279384A CN 202111356400 A CN202111356400 A CN 202111356400A CN 114279384 A CN114279384 A CN 114279384A
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000011248 coating agent Substances 0.000 title claims description 20
- 238000000576 coating method Methods 0.000 title claims description 20
- 230000000712 assembly Effects 0.000 claims abstract description 11
- 238000000429 assembly Methods 0.000 claims abstract description 11
- 238000003825 pressing Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to a device and a method for measuring thickness of a coated lithium ion battery pole piece. The device comprises: the device comprises a fixing assembly for fixing a pole piece, a measuring assembly (1) for detecting the thickness of the pole piece and a position adjusting assembly for driving the measuring assembly to move; the plurality of measuring assemblies (1) are connected with a position adjusting assembly, and the position adjusting assembly comprises a horizontal position adjusting assembly and a vertical position adjusting assembly which are connected. Compared with the prior art, the invention can quickly carry out multi-point thickness measurement on the pole piece, shorten the measurement time and improve the production efficiency.
Description
Technical Field
The invention relates to the technical field of lithium battery manufacturing, in particular to a device and a method for measuring thickness of a coated lithium ion battery pole piece.
Background
Lithium ion batteries are widely used in the fields of electronic devices and new energy vehicles because of their advantages of large energy density, high average output voltage, no memory effect, superior cycle performance, and the like.
The pole piece coating is one of important processes in the production process of the lithium battery, the thickness of the pole piece needs to be measured after the coating, and the thickness of the pole piece has great influence on the rebound property of the rolled pole piece and the service life of the battery, so that the consistency of the thickness of the coated pole piece is ensured. When the pole piece is coated and produced, the first coated pole piece needs to be measured, and when all measured values are within a specified range, the production can be continued. The pole pieces need to be manually measured and intercepted during measurement, so that the measurement is inconvenient, the efficiency is low, and the production progress is seriously influenced.
Disclosure of Invention
The invention aims to provide a device and a method for measuring the thickness of a coated lithium ion battery pole piece, which improve the production efficiency.
The purpose of the invention can be realized by the following technical scheme: a thickness measuring device for a lithium ion battery pole piece after coating comprises a fixing component for fixing the pole piece, a measuring component for detecting the thickness of the pole piece and a position adjusting component for driving the measuring component to move;
the plurality of measuring assemblies are connected with the position adjusting assembly, and the position adjusting assembly comprises a horizontal position adjusting assembly and a vertical position adjusting assembly which are connected.
Preferably, a plurality of the measuring assemblies are arranged on the measuring plate in parallel, the measuring plate is arranged on the vertical position adjusting assembly, and the vertical position adjusting assembly is arranged on the transverse position adjusting assembly.
Preferably, the horizontal position adjusting assembly comprises a first screw rod and a moving block arranged on the first screw rod, the first screw rod is connected with a driving piece, the driving piece drives the first screw rod to rotate, the moving block moves on the first screw rod, and the moving block is connected with the vertical position adjusting assembly.
Further preferably, the horizontal position adjusting assembly comprises two first screws which are arranged in parallel and horizontally, a moving block connecting plate is arranged between moving blocks arranged on the two first screws, and the vertical position adjusting assembly is arranged on the moving block connecting plate.
Still further preferably, one end of the first screw is connected with a fixing block, the other end of the first screw is connected with a driving piece, and a fixing column is arranged between the fixing blocks at the end parts of the two parallel first screws.
Further preferably, the driving member includes a first gear connected to the first screw, and the first gear is connected to a second gear fixed to the first motor through a belt.
Still further preferably, the first motor is fixed with the motor mounting plate on the motor support plate.
Preferably, the vertical position adjusting assembly comprises a second motor arranged on the horizontal position adjusting assembly and a coupler connected with the second motor, the coupler is connected with a second screw rod, and the second screw rod is connected with the measuring assembly.
Further preferably, the vertical position adjustment assembly further comprises a guide. Still further preferably, the guide member is a second guide post disposed parallel to the second screw.
Preferably, the fixing assembly comprises an upper base plate and a pressing plate arranged above the upper base plate, and the pressing plate is driven by the air cylinder to be close to or far away from the upper base plate.
Further preferably, the cylinder is connected with a pressure plate connecting plate, a first guide pillar is arranged on the pressure plate connecting plate, and the first guide pillar penetrates through the upper base plate and is connected with the pressure plate.
Further preferably, the position adjusting assembly is arranged above the upper base plate through a first upright post;
the upper base plate is fixed on the lower base plate through the second upright post, the air cylinder is fixed on the lower base plate, and the lower base plate is provided with a supporting mechanism.
Preferably, the measuring component comprises a thickness gauge or a laser thickness gauge. Further preferably, the thickness gauge or the laser thickness gauge is provided with a wireless data transmission function.
A method for measuring the thickness of a lithium ion battery pole piece after coating is carried out by adopting the device and comprises the following steps:
s1: zeroing the measurement assembly;
s2: compressing and fixing the coated pole piece by using a fixing assembly;
s3: moving the measuring assembly downwards by using a vertical position adjusting assembly to measure the thickness of the pole piece, and then moving the measuring assembly upwards to leave the surface of the pole piece;
s4: driving the measuring assembly to horizontally move by using the horizontal position adjusting assembly, and then continuously measuring the thickness of the pole piece according to the step S3;
s5: repeating the steps S4 and S3 until the thickness of the pole piece is completely measured;
s6: and (5) releasing the fixation of the fixing component, and taking out the measured pole piece.
Compared with the prior art, the invention has the following advantages:
1. compared with the traditional manual thickness measurement, the device can quickly perform multipoint thickness measurement on the pole piece, shorten the measurement time and improve the production efficiency;
2. according to the device, the horizontal position adjusting assembly, the vertical position adjusting assembly and the plurality of measuring assemblies are arranged in a matched mode, so that the measuring assemblies can realize displacement in the horizontal direction and the vertical direction, the measuring positions can be adjusted flexibly, the plurality of measuring assemblies are matched with one another, multipoint thickness measurement of different positions of a pole piece can be performed rapidly, and the measuring accuracy and efficiency are improved;
3. according to the device, the horizontal position adjusting component can stably convert the rotation of the motor into the horizontal displacement of the moving block through the matching of the first screw rod, the moving block, the gear, the belt, the motor and other components, so that the moving precision and stability of the measuring component in the horizontal direction are improved;
4. according to the device, the vertical position adjusting assembly stably converts the rotation of the motor into the vertical displacement of the screw through the matching of the screw, the coupler, the motor and other assemblies, so that the moving precision and stability of the measuring assembly in the vertical direction are improved;
5. the fixing assembly can automatically compress the pole piece by matching the air cylinder, the upper bottom plate, the pressing plate and other assemblies, further improves the stability of the compressing process and reduces the influence of the pole piece fixing process on the measurement precision by arranging the guide pillar, the connecting plate and other assemblies;
6. compared with manual data recording, the device provided by the invention can transmit the measured data to a computer in real time, so that the accuracy and efficiency of data recording are improved.
Drawings
FIG. 1 is an isometric view of the structure of a thickness measuring device after coating of a lithium ion battery pole piece according to the present invention;
FIG. 2 is a top view of the thickness measuring device after coating the lithium ion battery pole piece according to the present invention;
FIG. 3 is a partial cross-sectional view of a thickness measuring device after coating of a lithium ion battery pole piece according to the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3;
in the figure: 1-a measuring component, 2-a measuring plate, 3-a first screw rod, 4-a moving block, 5-a moving block connecting plate, 6-a first gear, 7-a belt, 8-a first motor, 9-a second gear, 10-a second motor, 11-a coupler, 12-a second screw rod, 13-an upper base plate, 14-a pressing plate, 15-a cylinder, 16-a pressing plate connecting plate, 17-a first guide pillar, 18-a first upright post, 19-a second upright post, 20-a lower base plate, 21-a supporting mechanism, 22-a fixing block, 23-a fixing column, 24-a second guide pillar, 25-a motor supporting plate and 26-a motor mounting plate.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The following examples are carried out on the premise of the technical scheme of the invention, and detailed embodiments and specific operation processes are given, but the scope of the invention is not limited to the following examples.
Example 1
A thickness measuring device for coated lithium ion battery pole pieces comprises a foot cup (supporting mechanism 21), a lower base plate 20, a cylinder 15, a pressure plate connecting plate 16, a guide pillar, a pressure plate 14, an upper base plate 13, a stand column, a fixing block 22, a fixing column 23, a screw, a moving block 4, a moving block connecting plate 5, a stepping motor, a coupler 11, a measuring plate 2, a thickness gauge (measuring component 1), a gear, a belt 7, a motor fixing transverse plate (motor supporting plate 25) and a motor fixing vertical plate (motor mounting plate 26), wherein the supporting mechanism is arranged on the foot cup, and the motor fixing transverse plate is arranged on the motor fixing transverse plate. The foot cup is connected with the lower bottom plate 20; the cylinder 15 is fixed on the lower bottom plate 20 and connected with the pressure plate connecting plate 16, and the first guide post 17 penetrates through the upper bottom plate 13 and is connected with the pressure plate 14; the upper base plate 13 and the lower base plate 20 are fixed through a second upright post 19; the first upright post 18 is fixed on the upper bottom plate 13, four fixing blocks 22 are arranged on the first upright post 18, and a first screw 3 and a fixing column 23 are connected between the fixing blocks 22; the moving block 4 is arranged on the first screw rod 3, and the moving block connecting plate 5 is connected with the two moving blocks 4; the second motor 10 is arranged on the moving block connecting plate 5 and is connected with a second screw 12 through a coupler 11, and the second screw 12 is connected with the measuring plate 2; the thickness gauge (measuring component 1) is fixed on the measuring plate 2 through a screw; a first gear 6 is installed at one end of the first screw rod 3 and is connected with a second gear 9 fixed on a first motor 8 through a belt 7, and the first motor 8 is fixed with a motor mounting plate 26 on a motor support plate 25.
Compared with the existing manual thickness measuring technology, in the invention, the measuring plate 2 is provided with a plurality of thickness gauges, and the electrode plate can be measured in multiple points; the thickness gauge has a wireless data transmission function, and can upload data to a file in time for storage. The automatic thickness measuring device is simple in structure, multi-point measurement is easy to realize, labor force can be reduced, and production efficiency is improved.
More specifically, the lower part of the pressure plate connecting plate 16 is connected with the air cylinder 15, the upper part of the pressure plate connecting plate is connected with the pressure plate 14 above the upper base plate 13 through the first guide pillar 17, and the pressure plate 14 presses the pole piece to be measured;
one end of each of the two first screw rods 3 is provided with a first gear 6, the two first gears 6 are connected with a second gear 9 through a belt, the second gear 9 is driven by a first motor 8 to drive the first gears 6 to rotate through a belt 7, so that the two first screw rods 3 are driven to rotate, and the measuring component 1 moves horizontally;
the second motor 10 is connected with a second screw rod 12 through a coupler 11, the other end of the second screw rod 12 is connected with a measuring plate 2, four thickness gauges are arranged on the measuring plate 2, and the thickness gauges are driven by the second motor 10 to move up and down to measure the thickness of the pole piece.
Example 2
A method for measuring the thickness of a lithium ion battery pole piece after coating is carried out by adopting the device in the embodiment 1 and comprises the following steps:
step one, starting a second motor 10, driving a thickness gauge on a measuring plate 2 to move downwards through a coupler 11 and a second screw 12, stopping the second motor 10 until the bottom of the thickness gauge contacts an upper bottom plate 13, then zeroing all the thickness gauges, and starting the second motor 10 after zeroing to enable the thickness gauge to leave the upper bottom plate 13;
and step two, starting the air cylinder 15, enabling the air cylinder rod to upwards drive the pressure plate connecting plate 16 to upwards move, and driving the pressure plate 14 to upwards move through the first guide pillar 17. Then, cutting a coated pole piece with a proper length and placing the coated pole piece below a pressing plate 14, and then starting an air cylinder 15 to enable the pressing plate 14 to move downwards to press the pole piece to be measured;
step three, starting a second motor 10, driving the thickness gauges on the measuring plate 2 to move downwards through a coupler 11 and a second screw 12 until the bottoms of the thickness gauges contact the pole piece to be measured, displaying thickness values of all points on a dial plate, sending data to a computer for storage, and then starting the second motor 10 to enable all the thickness gauges to leave the surface of the pole piece to be measured;
step four, starting a first motor 8, driving a first gear 6 by a second gear 9 through a belt 7 to enable a first screw rod 3 to rotate, enabling a moving block 4 on the first screw rod 3 to longitudinally move along the horizontal direction, further driving a thickness gauge to longitudinally move, and then continuously measuring the thickness of the pole piece according to the step three;
and step five, repeating the step four and the step three until the thickness of the pole piece is completely measured.
And step six, starting the air cylinder 15, enabling an air cylinder rod to upwards drive the pressing plate connecting plate 16 to upwards move, driving the pressing plate 14 to upwards move through the first guide pillar 17, and taking out the measured pole piece.
According to the invention, the automatic multi-point measurement of the thickness of the coated pole piece can be realized, and the data can be transmitted and stored in the file, so that the labor force is reduced, and the production efficiency is improved.
Example 3
The utility model provides a thick device of survey after coating of lithium ion battery pole piece, includes foot cup (supporting mechanism 21), lower plate 20, cylinder 15, clamp plate connecting plate 16, guide pillar, clamp plate 14, upper plate 13, stand, fixed block 22, fixed column 23, screw rod, movable block 4, movable block connecting plate 5, step motor, shaft coupling 11, measuring plate 2, thickness gage, gear, belt 7, motor fixed diaphragm (motor backup pad 25), motor fixed riser (motor mounting panel 26). The foot cup is connected with the lower bottom plate 20; the cylinder 15 is fixed on the lower bottom plate 20 and connected with the pressure plate connecting plate 16, and the first guide post 17 penetrates through the upper bottom plate 13 and is connected with the pressure plate 14; the upper base plate 13 and the lower base plate 20 are fixed through a second upright post 19; the first upright post 18 is fixed on the upper bottom plate 13, four fixing blocks 22 are arranged on the first upright post 18, and a first screw 3 and a fixing column 23 are connected between the fixing blocks 22; the moving block 4 is arranged on the first screw rod 3, and the moving block connecting plate 5 is connected with the two moving blocks 4; the second motor 10 is arranged on the moving block connecting plate 5 and is connected with a second screw 12 through a coupler 11, and the second screw 12 is connected with the measuring plate 2; the thickness gauge is fixed on the measuring plate 2 through a screw; a first gear 6 is arranged at one end of the first screw rod 3 and is connected with a second gear 9 fixed on a first motor 8 through a belt 4, and the first motor 8 is fixed with a motor mounting plate 26 on a motor support plate 25.
Specifically, four screw holes are uniformly distributed around the lower base plate 20 for mounting the foot cup, and four screw holes are uniformly distributed on two sides of the lower base plate 20 for mounting the air cylinder 15 and providing pressure for pressing the pole piece; the upper bottom plate 13 is fixed above the lower bottom plate 20 through four second upright posts 19; four first upright posts 18 are fixed on the periphery of the upper bottom plate 13, and four fixed blocks 22 are arranged above the first upright posts 18; the fixed block 22 is provided with two first screw rods 3 and two fixed columns 23; two moving blocks 4 are respectively arranged on the two first screw rods 3, and the two moving blocks 4 are connected to a moving block connecting plate 5 together; one end of each of the two first screws 3 is provided with a first gear 6, the two first gears 6 are connected with a second gear 9 through a belt 7, and the second gear 9 is driven by a first motor 8; the second motor 10 is fixed on the moving block connecting plate 5 and is connected with the second screw 12 through a coupler 11; the other end of the second screw 12 is connected with the measuring plate 2, four thickness gauges are arranged on the measuring plate 2 and fixed through screws, and two second guide columns 24 on the measuring plate 2 are connected with the moving block connecting plate 5; the number of thickness gauges installed on the measuring plate 2 is not limited to four, and the number of thickness gauges can be increased according to the requirement on the number of measured data; the measuring plate 2 is provided with a measuring device which is not limited to a thickness gauge, and can also be provided with a measuring device such as a laser thickness gauge; the thickness gauge is provided with a wireless data transmission function and can transmit the measurement data to the matched software to be stored as a file for storage.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. A thickness measuring device after coating of a lithium ion battery pole piece is characterized by comprising a fixing component for fixing the pole piece, a measuring component (1) for detecting the thickness of the pole piece and a position adjusting component for driving the measuring component to move;
the plurality of measuring assemblies (1) are connected with a position adjusting assembly, and the position adjusting assembly comprises a horizontal position adjusting assembly and a vertical position adjusting assembly which are connected.
2. The lithium ion battery pole piece post-coating thickness measuring device according to claim 1, wherein a plurality of measuring assemblies (1) are arranged in parallel on a measuring plate (2), the measuring plate (2) is arranged on a vertical position adjusting assembly, and the vertical position adjusting assembly is arranged on a transverse position adjusting assembly.
3. The lithium ion battery pole piece coating post-thickness measuring device according to claim 1, wherein the horizontal position adjusting assembly comprises a first screw (3) and a moving block (4) arranged on the first screw (3), the first screw (3) is connected with a driving piece, the driving piece drives the first screw (3) to rotate, the moving block (4) moves on the first screw (3), and the moving block (3) is connected with the vertical position adjusting assembly.
4. The lithium ion battery pole piece coating post-thickness measuring device according to claim 3, wherein the horizontal position adjusting assembly comprises two first screws (3) which are arranged in parallel and horizontally, a moving block connecting plate (5) is arranged between moving blocks (4) arranged on the two first screws (3), and the vertical position adjusting assembly is arranged on the moving block connecting plate (5).
5. The lithium ion battery pole piece post-coating thickness measuring device according to claim 3, wherein the driving member comprises a first gear (6) connected with the first screw (3), and the first gear (6) is connected with a second gear (9) fixed on the first motor (8) through a belt (7).
6. The lithium ion battery pole piece coating post-thickness measuring device according to claim 1, wherein the vertical position adjusting assembly comprises a second motor (10) arranged on the horizontal position adjusting assembly and a coupler (11) connected with the second motor (10), the coupler (11) is connected with a second screw rod (12), and the second screw rod (12) is connected with the measuring assembly (1).
7. The device for measuring the thickness of the lithium ion battery pole piece after coating according to claim 1, wherein the fixing assembly comprises an upper base plate (13) and a pressing plate (14) arranged above the upper base plate (13), and the pressing plate (14) is driven by a cylinder (15) to be close to or far away from the upper base plate (13).
8. The lithium ion battery pole piece coating post-thickness measuring device according to claim 7, wherein the air cylinder (15) is connected with a pressure plate connecting plate (16), a first guide post (17) is arranged on the pressure plate connecting plate (16), and the first guide post (17) penetrates through the upper base plate (13) and is connected with the pressure plate (14).
9. The lithium ion battery pole piece coated thickness measuring device of claim 7, wherein the position adjusting assembly is arranged above the upper base plate (13) through a first upright post (18);
the upper bottom plate (13) is fixed on the lower bottom plate (20) through a second upright post (19), the cylinder (15) is fixed on the lower bottom plate (20), and the lower bottom plate (20) is provided with a supporting mechanism (21);
the measuring component (1) comprises a thickness gauge or a laser thickness gauge.
10. A method for measuring thickness of a lithium ion battery pole piece after coating is characterized by being carried out by adopting the device of any one of claims 1-9, and comprising the following steps:
s1: zeroing the measuring assembly (1);
s2: compressing and fixing the coated pole piece by using a fixing assembly;
s3: moving the measuring assembly (1) downwards by using a vertical position adjusting assembly to measure the thickness of the pole piece, and then moving the measuring assembly (1) upwards to separate from the surface of the pole piece;
s4: driving the measuring component (1) to horizontally move by using the horizontal position adjusting component, and then continuously measuring the thickness of the pole piece according to the step S3;
s5: repeating the steps S4 and S3 until the thickness of the pole piece is completely measured;
s6: and (5) releasing the fixation of the fixing component, and taking out the measured pole piece.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111356400.2A CN114279384A (en) | 2021-11-16 | 2021-11-16 | Device and method for measuring thickness of lithium ion battery pole piece after coating |
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| CN202111356400.2A CN114279384A (en) | 2021-11-16 | 2021-11-16 | Device and method for measuring thickness of lithium ion battery pole piece after coating |
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| CN117824561A (en) * | 2024-03-06 | 2024-04-05 | 广州市国隆实业有限公司 | Copper sheet lamination thickness continuous detection equipment and detection method thereof |
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| CN115077451B (en) * | 2022-07-11 | 2024-08-13 | 湖北亿纬动力有限公司 | Test equipment and test method for thickness of battery pole piece |
| CN117470163A (en) * | 2023-12-27 | 2024-01-30 | 中建国际工程有限公司 | Fireproof coating thickness gauge |
| CN117470163B (en) * | 2023-12-27 | 2024-03-22 | 中建国际工程有限公司 | Fireproof coating thickness gauge |
| CN117824561A (en) * | 2024-03-06 | 2024-04-05 | 广州市国隆实业有限公司 | Copper sheet lamination thickness continuous detection equipment and detection method thereof |
| CN117824561B (en) * | 2024-03-06 | 2024-05-14 | 广州市国隆实业有限公司 | Copper sheet lamination thickness continuous detection equipment and detection method thereof |
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