CN211373437U - Device for measuring integral thickness of aluminum plastic film at corner of lithium ion battery shell - Google Patents
Device for measuring integral thickness of aluminum plastic film at corner of lithium ion battery shell Download PDFInfo
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- CN211373437U CN211373437U CN201922169294.1U CN201922169294U CN211373437U CN 211373437 U CN211373437 U CN 211373437U CN 201922169294 U CN201922169294 U CN 201922169294U CN 211373437 U CN211373437 U CN 211373437U
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Abstract
The utility model discloses a device for measuring the integral thickness of an aluminum plastic film at the corner of a lithium ion battery shell, which comprises a base platform (1); the rear end of the top of the base platform is connected with a vertical rod (3); the vertical rod is connected with the rear end of the cantilever (4); a vertical plate (5) is fixedly connected to the front side of the cantilever (4); a locking block (7) is fixedly arranged at the lower end of the front side of the vertical plate; a dial indicator (6) is fixedly connected to the locking block; the lower part of the dial indicator is provided with a plane measuring head (61); the bottom surface of the plane measuring head is a plane; an auxiliary corner measuring tool (2) is arranged right below the dial indicator; the corner measurement auxiliary tool comprises a tool base (21) and a spherical measuring head (22), wherein the spherical measuring head is vertically arranged on the top surface of the tool base; the plane measuring head is positioned right above the spherical measuring head. The utility model discloses can measure battery case bight plastic-aluminum membrane whole thickness portably, show saving measuring time, effectively monitor the quality of dashing the shell.
Description
Technical Field
The utility model relates to the technical field of batteries, especially, relate to a measuring device of the whole thickness of lithium ion battery shell corner plastic-aluminum membrane.
Background
The production process of the lithium ion battery comprises the processes of powder slurry, coating, flaking, winding, assembling, forming and the like. The main work of the assembly process is to use a shell punching die to punch a flat aluminum-plastic film into a cavity for containing the wound pole group and electrolyte.
The aluminum-plastic film is a composite material and mainly comprises three layers of different materials, wherein the outermost layer is a nylon layer, the middle layer is an aluminum layer, the inner layer is polypropylene, and a binder is added between the different layers for bonding the layers. Because different materials have different tensile properties, the tensile property of the aluminum layer is the worst in the three-layer material, which determines that the overall tensile property of the aluminum-plastic film cannot be stretched and deformed without limitation. Because the aluminum layer is the only protective layer in the three-layer structure, which can prevent moisture from entering the battery, the integrity of the aluminum layer determines the safety performance of the punched shell.
In the production process of the battery, a method for measuring the thickness of the aluminum layer at the corner of the battery shell is usually selected to measure the tensile deformation degree of the aluminum layer of the aluminum-plastic film, so as to evaluate the safety performance of the aluminum-plastic film. The specific operation method comprises the following steps: selecting the aluminum plastic film at the weakest position of the battery shell, sectioning the aluminum plastic film by a sharp blade along the thickness direction of the aluminum plastic film, placing the sectioned section under a microscope to measure the thickness of the aluminum layer, selecting the weakest position to measure, and setting 60 percent of the original aluminum layer thickness (namely the thickness of the aluminum layer before the shell is punched) as a lower limit value to control.
The measurement method can be used for evaluating the safety of the shell punching well, but the cutting process tests the proficiency of the operation of workers, and meanwhile, the method consumes more time, is low in efficiency and is not beneficial to the continuity of production.
Therefore, in view of the above problems, in combination with the demand of production, there is an urgent need to develop a new technology capable of simply and conveniently measuring the entire thickness of the aluminum plastic film at the corner of the battery case and effectively monitoring the quality of the punched case.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a measuring device of the whole thickness of lithium ion battery shell corner plastic-aluminum membrane to the technical defect that prior art exists.
Therefore, the utility model provides a measuring device for the integral thickness of the aluminum plastic film at the corner of the lithium ion battery shell, which comprises a base platform;
the rear end of the top of the base platform is connected with vertical rods which are vertically distributed;
the upright stanchion is connected with the rear end of a cantilever;
a vertical plate is fixedly connected to the front side of the cantilever;
a locking block is fixedly arranged at the lower end of the front side of the vertical plate;
the locking block is fixedly connected with a dial indicator;
the lower part of the dial indicator is provided with a plane measuring head; the bottom surface of the plane measuring head is a plane;
an auxiliary corner measuring tool is arranged right below the dial indicator;
the corner measurement auxiliary tool comprises a tool base and a spherical measuring head, wherein the spherical measuring head is vertically arranged on the top surface of the tool base;
the plane measuring head is positioned right above the spherical measuring head.
Wherein, the top surface of the spherical measuring head is spherical.
Wherein, the rear end bottom surface processing of base platform has the heavy platform hole, locks the pole setting on base platform through the heavy platform hole.
Wherein, the base platform is the marble platform.
By above the utility model provides a technical scheme is visible, compares with prior art, the utility model provides a measuring device of the whole thickness of lithium ion battery casing bight plastic-aluminum membrane, it can be portably measure the whole thickness of battery casing bight plastic-aluminum membrane, is showing saving measuring time, and the quality of effective control towards the shell has the significance of great production practice.
Drawings
Fig. 1 is a schematic view of the overall structure of a device for measuring the overall thickness of an aluminum-plastic film at a corner of a lithium ion battery case provided by the present invention;
fig. 2 is a schematic structural diagram of an auxiliary tool for measuring the corner of the lithium ion battery case provided in the measuring device for the whole thickness of the aluminum-plastic film at the corner of the lithium ion battery case of the present invention;
fig. 3 is a schematic structural diagram of a dial indicator provided in the device for measuring the whole thickness of the aluminum-plastic film at the corner of the lithium ion battery case provided by the present invention;
fig. 4 is the utility model provides a pair of measuring device of the whole thickness of lithium ion battery shell corner plastic-aluminum membrane, and the measuring operating condition schematic diagram between the volume of awaiting measuring plastic-aluminum casing.
In the figure: 1 is a base platform; 2, corner measurement auxiliary tooling; 3 is a vertical rod; 4 is a cantilever; 5 is a vertical plate;
6 is a dial indicator; 7 is a locking block; 8 is an aluminum-plastic shell to be measured;
21 is a tool base; 22 is a spherical measuring head; reference numeral 61 denotes a flat gauge head.
Detailed Description
In order to make the technical field of the present invention better understand, the present invention is further described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1 to 4, the utility model provides a device for measuring the overall thickness of an aluminum-plastic film at the corner of a lithium ion battery shell, which is used for detecting quality control items in the battery production process and specifically comprises a base platform 1;
the rear end of the top of the base platform 1 is connected with vertical rods 3 which are vertically distributed;
the upright rod 3 is connected (for example, spliced) with the rear end of a cantilever 4;
a vertical plate 5 is fixedly connected to the front side of the cantilever 4;
a locking block 7 is fixedly arranged at the lower end of the front side of the vertical plate 5;
a dial indicator 6 is fixedly connected (for example, clamped) on the locking block 7;
the lower part of the dial indicator 6 is provided with a plane measuring head 61; the bottom surface of the plane measuring head 61 is a plane;
an auxiliary corner measuring tool 2 is arranged right below the dial indicator 6;
the corner measurement auxiliary tool 2 comprises a tool base 21 and a spherical measuring head 22, wherein the spherical measuring head 22 is vertically arranged on the top surface of the tool base 21;
the planar stylus 61 is located directly above the spherical stylus 22.
In the present invention, in the specific implementation, the top surface of the spherical measuring head 22 is a spherical surface (specifically, a half of a sphere), and the radius of the spherical surface is 1 mm.
The utility model discloses in, on specifically realizing, base platform 1 is the marble platform.
The utility model discloses in, on specifically realizing, base platform 1's rear end bottom surface processing has the heavy platform hole, locks pole setting 3 on base platform 1 through the heavy platform hole.
It should be noted that the utility model discloses in, cantilever 4 can carry out level clockwise or anticlockwise rotation along pole setting 3, simultaneously, can promote cantilever 4 from top to bottom, adjusts the height of cantilever 4 to through the structure of cantilever 4, ensure sufficient test operation space.
The utility model discloses in, on specifically realizing, riser 5 passes through screw locking on cantilever 4.
The utility model discloses in, on specifically realizing, latch segment 7 passes through screw locking on riser 5.
It should be noted that, to the utility model discloses, require measurement accuracy 0.001mm, use amesdial 6 to measure, the amesdial is fixed on latch segment 7.
To the utility model discloses, the test contact (sphere gauge head 22 promptly) fastening of auxiliary fixtures 2 is measured in bight is at fixture base 21, and the accessible jackscrew locks.
In order to understand the technical solution of the present invention more clearly, the following description of the operation and use process of the present invention is as follows:
in the first step, the height of the dial indicator 6 is adjusted, the plane measuring head 61 of the dial indicator is adjusted to just contact the spherical measuring head 22 of the corner measurement auxiliary tool 2, the position of the corner measurement auxiliary tool 2 is adjusted, and the spherical measuring head 22 is guaranteed to be centered relative to the plane measuring head 61.
And secondly, clicking a switch of the dial indicator 6, adjusting the measurement mode and returning to zero.
And thirdly, placing the position of the un-punched shell aluminum-plastic film of the aluminum-plastic shell 8 to be measured between two measuring heads (namely the spherical measuring head 22 and the plane measuring head 61) for measurement, and calibrating the measurement result.
And fourthly, measuring the corner position of the polypropylene surface of the aluminum-plastic shell 8 to be measured corresponding to the spherical measuring head 22 and the corner position of the nylon layer surface corresponding to the plane measuring head 61, and recording the measuring result.
And fifthly, selecting three points at the same corner position for measurement, and finally taking the minimum value for recording.
Therefore, through the utility model provides a measuring device of the whole thickness of battery case bight plastic-aluminum membrane has accomplished the measurement to the whole thickness of battery case bight plastic-aluminum membrane.
The operation of the present invention will be described with reference to a specific embodiment.
1. Referring to fig. 1, the cantilever 4 is adjusted to a proper height and then locked;
2. referring to fig. 1, the corner measurement auxiliary tool 2 is placed on a base platform 1 and adjusted in place;
3. referring to fig. 1, 2 and 3, the height of the dial indicator 6 is adjusted to the plane measuring head 61 at the bottom of the dial indicator 6, so that the angle measurement auxiliary tool 2 just contacts the spherical measuring head 22 of the angle measurement auxiliary tool 2, the angle measurement auxiliary tool 2 is adjusted to the central position of the spherical measuring head 22 relative to the plane measuring head 61, and the dial indicator 6 is locked through the locking block 7;
4. opening a switch of the dial indicator, adjusting to a measurement mode, and performing zeroing operation;
5. referring to fig. 4, the un-punched shell aluminum-plastic film position of the aluminum-plastic shell 8 to be measured is placed between two measuring heads (i.e. the spherical measuring head 22 and the planar measuring head 61) for detection, and the measuring result is calibrated;
6. referring to fig. 2, the planar probe 61 is lifted, the angle part of the aluminum-plastic shell 8 to be measured is tightly attached to the spherical probe (i.e. the spherical probe 22), and the planar probe 61 is slowly released for measurement.
7. And (5) repeating the step 6, measuring three points at the same corner position, and taking the minimum value as a measurement result.
According to the technical scheme provided by the utility model, the utility model provides a measuring device of whole thickness of lithium ion battery shell bight plastic-aluminum membrane, the device is easy and simple to handle, and the precision is high, and stability is high, can accurately measure the whole thickness of casing bight plastic-aluminum membrane.
It should be noted that, to the utility model discloses, can realize the accurate measurement of the whole thickness of battery case bight plastic-aluminum membrane, increased towards shell quality management and control measure. In the specific operation, the product quality in the production process can be monitored together by combining the aluminum layer cutting thickness data.
Compared with the prior art, the utility model provides a measuring device of whole thickness of lithium ion battery shell corner plastic-aluminum membrane has following beneficial effect:
the utility model discloses set out from the actual problem that solves the production site and exist, combine the customer requirement, when the increase is measured the frequency, reduce the operation degree of difficulty of measurement process, improve measurement of efficiency, simultaneously, increased the standard of appraising of casing security performance, ensured product quality's control.
To sum up, compare with prior art, the utility model provides a pair of measuring device of whole thickness of lithium ion battery casing bight plastic-aluminum membrane, it can be measured battery casing bight plastic-aluminum membrane whole thickness portably, is showing saving measuring time, effectively monitors the quality of dashing the shell, has the meaning of great production practice.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. A device for measuring the integral thickness of an aluminum plastic film at the corner of a lithium ion battery shell is characterized by comprising a base platform (1);
the rear end of the top of the base platform (1) is connected with vertical rods (3) which are vertically distributed;
the upright rod (3) is connected with the rear end of a cantilever (4);
a vertical plate (5) is fixedly connected to the front side of the cantilever (4);
a locking block (7) is fixedly arranged at the lower end of the front side of the vertical plate (5);
a dial indicator (6) is fixedly connected to the locking block (7);
the lower part of the dial indicator (6) is provided with a plane measuring head (61); the bottom surface of the plane measuring head (61) is a plane;
an auxiliary corner measuring tool (2) is arranged right below the dial indicator (6);
the corner measurement auxiliary tool (2) comprises a tool base (21) and a spherical measuring head (22), wherein the spherical measuring head (22) is vertically arranged on the top surface of the tool base (21);
the plane gauge head (61) is positioned right above the spherical gauge head (22).
2. The device for measuring the integral thickness of the aluminum plastic film at the corner of the lithium ion battery shell according to claim 1, wherein the top surface of the spherical measuring head (22) is spherical.
3. The device for measuring the integral thickness of the aluminum plastic film at the corner of the lithium ion battery shell according to claim 1, wherein a counter sink hole is formed in the bottom surface of the rear end of the base platform (1), and the upright rod (3) is locked on the base platform (1) through the counter sink hole.
4. The device for measuring the integral thickness of the aluminum plastic film at the corner of the lithium ion battery shell according to claim 1, wherein the base platform (1) is a marble platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922169294.1U CN211373437U (en) | 2019-12-06 | 2019-12-06 | Device for measuring integral thickness of aluminum plastic film at corner of lithium ion battery shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922169294.1U CN211373437U (en) | 2019-12-06 | 2019-12-06 | Device for measuring integral thickness of aluminum plastic film at corner of lithium ion battery shell |
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|---|---|
| CN211373437U true CN211373437U (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922169294.1U Active CN211373437U (en) | 2019-12-06 | 2019-12-06 | Device for measuring integral thickness of aluminum plastic film at corner of lithium ion battery shell |
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| CN (1) | CN211373437U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649682A (en) * | 2020-06-29 | 2020-09-11 | 天津市捷威动力工业有限公司 | Method for detecting pit angle thickness of lithium ion battery punched aluminum-plastic film |
| CN114280282A (en) * | 2021-12-29 | 2022-04-05 | 马前进 | Be used for concrete shrinkage test device |
-
2019
- 2019-12-06 CN CN201922169294.1U patent/CN211373437U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649682A (en) * | 2020-06-29 | 2020-09-11 | 天津市捷威动力工业有限公司 | Method for detecting pit angle thickness of lithium ion battery punched aluminum-plastic film |
| CN111649682B (en) * | 2020-06-29 | 2021-11-30 | 天津市捷威动力工业有限公司 | Method for detecting pit angle thickness of lithium ion battery punched aluminum-plastic film |
| CN114280282A (en) * | 2021-12-29 | 2022-04-05 | 马前进 | Be used for concrete shrinkage test device |
| CN114280282B (en) * | 2021-12-29 | 2023-10-03 | 马前进 | Be used for concrete shrinkage test device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230201 Address after: 300000 No.38 Haitai South Road, Huayuan Industrial Zone (outside the ring), High-tech Zone, Binhai New Area, Tianjin Patentee after: Tianjin Juyuan New Energy Technology Co.,Ltd. Address before: No.38, South Haitai Road, Binhai high tech Industrial Development Zone, Binhai New Area, Tianjin Patentee before: TIANJIN LISHEN BATTERY JOINT-STOCK Co.,Ltd. |
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