CN114688949A - Lithium battery module bottom flatness detection device - Google Patents
Lithium battery module bottom flatness detection device Download PDFInfo
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- CN114688949A CN114688949A CN202210205021.1A CN202210205021A CN114688949A CN 114688949 A CN114688949 A CN 114688949A CN 202210205021 A CN202210205021 A CN 202210205021A CN 114688949 A CN114688949 A CN 114688949A
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- lithium battery
- battery module
- pressing plate
- electronic dial
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/28—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Secondary Cells (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a device for detecting the bottom flatness of a lithium battery module, which comprises a detection platform, a measuring mechanism and a data acquisition system, wherein the measuring mechanism is arranged on the detection platform, and during measurement, the measuring mechanism extrudes the bottom of the lithium battery module and acquires data of the bottom plane of the lithium battery module, and then the acquired data is sent to the data acquisition system for analysis and comparison to obtain a detection result of the bottom flatness of the lithium battery module. The flatness detection device can be used for rapidly detecting the flatness of the bottom surface of the lithium battery module, and is simple in structure and high in detection precision.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a device for detecting the flatness of the bottom of a lithium battery module.
Background
Lithium battery module is in process of production, because of lithium battery module equipment process is comparatively complicated, receives multiple factor influences such as equipment, material, technology, and the relatively poor problem of bottom level is very easily appeared to the lithium battery module after the equipment, and the relatively poor cover plate welding rosin joint that very easily causes of bottom level is when lithium battery module is built-in, can not glue the abundant contact with the structure of bottom half, and it is relatively poor to cause lithium battery module's whole fixed strength, has multiple hidden danger. Therefore, unqualified lithium batteries detected by the flatness of the bottom of the lithium battery module are removed by detecting the flatness of the bottom of the lithium battery module, and the stability of the overall structure of the subsequent battery box is ensured.
Disclosure of Invention
The invention aims to provide a device for detecting the flatness of the bottom of a lithium battery module, which can quickly detect the flatness of the bottom of the lithium battery module and has the advantages of simple structure and high detection precision.
The technical scheme of the invention is as follows:
a device for detecting the flatness of the bottom of a lithium battery module comprises a detection platform, a measuring mechanism and a data acquisition system;
the measuring mechanism comprises an air cylinder, a pressing plate and a plurality of electronic dial indicators, the air cylinder, the pressing plate and the electronic dial indicators are arranged on the detection platform, a piston rod of the air cylinder is fixedly connected with the pressing plate, the electronic dial indicators are uniformly distributed on the pressing plate, measuring ends of the electronic dial indicators are perpendicular to the bottom of the lithium battery module on the detection platform, and data output ends of the electronic dial indicators are connected with the data acquisition system.
The detection platform is also fixedly provided with a module positioning support frame, the module positioning support frame comprises two inverted U-shaped support frames fixed on the detection platform, the two inverted U-shaped support frames are parallel to each other, and two end parts of the lithium battery module are respectively supported on the horizontal parts of the top ends of the two inverted U-shaped support frames; the air cylinder is fixed on the detection platform, a piston rod of the air cylinder vertically extends upwards and is fixedly connected with the pressing plate, the measuring ends of the electronic dial indicators vertically and upwards penetrate through the pressing plate, and the measuring ends of the electronic dial indicators are located at the same horizontal height.
The module positioning mechanism further comprises a limiting strip, the limiting strip is adjacent to the vertical parts of the two inverted U-shaped supporting frames on the same side, the two end parts of the limiting strip are respectively supported and fixed on the horizontal parts of the top ends of the two inverted U-shaped supporting frames, and the lithium battery module is supported on the module positioning supporting frame and is close to the limiting strip.
The measuring mechanism further comprises four guide rods, the detecting platform is provided with four linear bearings, the four guide rods are respectively connected onto the four linear bearings, the pressing plate is of a rectangular plate structure, the pressing plate is fixed at the top ends of the four guide rods, the four guide rods are respectively located at four corners of the pressing plate, a piston rod of the air cylinder vertically extends upwards and is fixedly connected with the central portion of the pressing plate, and the electronic dial indicators are uniformly distributed on the lower surface of the pressing plate in a matrix mode.
The detection platform on still be fixed with two pneumatic buffer gear, two pneumatic buffer gear are located the side at clamp plate both ends respectively, every pneumatic buffer gear is all including the mount pad, the type of falling L support, hydraulic buffer, fixed block and spacing bolt, the mount pad is fixed in on the detection platform, the bottom mounting of the type of falling L support, the horizontal part on type of falling L support top is located the clamp plate tip directly over, hydraulic buffer is fixed in on the horizontal part on type of falling L support top, hydraulic buffer's piston end is towards the upper surface of clamp plate, the fixed block is fixed in on the vertical part of the type of falling L support and is located the clamp plate directly under, the vertical setting of spacing bolt and its bolt head are located the top, spacing bolt threaded connection is on the fixed block.
The pressure plate is evenly distributed with a plurality of dial indicator locking blocks, and each electronic dial indicator is fixedly connected to the corresponding dial indicator locking block.
And the manual reversing valve and the pressure reducing valve of the air cylinder are both arranged on the detection platform.
The data acquisition system comprises a computer and a concentrator, and output data lines of a plurality of electronic dial gauges are connected with the computer through the concentrator.
The detection platform is fixedly provided with an electric cabinet, and the air cylinder and the electronic dial indicators are connected with the electric cabinet to realize power supply.
The invention has the advantages that:
when the detection is carried out, the lithium battery module is arranged on the module positioning mechanism, the manual reversing valve of the air cylinder is controlled, the measuring mechanism can move upwards to contact with the bottom of the lithium battery module and detect the lithium battery module, the detection data are sent to the data acquisition system after the detection, the data acquisition system analyzes and compares the detection data to obtain the detection result of the flatness of the bottom of the lithium battery module, the whole detection process is rapid, and the operation is simple; the electronic dial indicators are uniformly distributed on the lower surface of the pressing plate in a matrix form, and each area at the bottom of the lithium battery module can be synchronously detected, so that the detection accuracy is high.
Drawings
Fig. 1 is a front view illustrating a lithium battery module inspection according to the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
FIG. 3 is a schematic structural diagram of a module positioning mechanism on the inspection platform according to the present invention.
Fig. 4 is a schematic structural view of the inventive measuring mechanism.
Fig. 5 is a schematic structural view of the pneumatic buffer mechanism of the present invention.
Fig. 6 is a schematic diagram of the structure of the inventive data acquisition system.
The detection device comprises a reference numeral, 1-a detection platform, 2-a module positioning mechanism, 3-a measuring mechanism, 4-a pneumatic buffer mechanism, 5-a data acquisition system, 6-a lithium battery module, 21-an inverted U-shaped support frame, 22-a limiting strip, 31-an air cylinder, 32-a pressure plate, 33-an electronic dial indicator, 34-a guide rod, 35-a linear bearing, 36-a dial indicator locking block, 37-a manual reversing valve, 38-a pressure reducing valve, 39-an electric cabinet, 41-a mounting seat, 42-an inverted L-shaped support, 43-a hydraulic buffer, 44-a fixing block, 45-a limiting bolt, 51-a computer, 52-a concentrator and 53-an output data line of the electronic dial indicator.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
A device for detecting the flatness of the bottom of a lithium battery module comprises a detection platform 1, a module positioning mechanism 2, a measuring mechanism 3, two pneumatic buffer mechanisms 4 and a data acquisition system 5;
the module positioning mechanism 2 comprises two inverted U-shaped supporting frames 21 and a limiting strip 22, the two inverted U-shaped supporting frames 21 are fixed on the detection platform 1, the two inverted U-shaped supporting frames 21 are parallel to each other, two end parts of the lithium battery module 6 are respectively supported on the horizontal parts of the top ends of the two inverted U-shaped supporting frames 21, the limiting strip 22 is adjacent to the vertical parts of the two inverted U-shaped supporting frames 21 on the same side, two end parts of the lithium battery module 6 are respectively supported and fixed on the horizontal parts of the top ends of the two inverted U-shaped supporting frames 21 and abut against the limiting strip 22, and therefore accurate positioning of the lithium battery module 6 is achieved;
the measuring mechanism 3 comprises an air cylinder 31, a pressure plate 32, a plurality of electronic dial indicators 33 and four guide rods 34, the air cylinder 31 is fixed on the detection platform 1, a piston rod of the air cylinder 31 vertically extends upwards, the pressure plate 32 is of a rectangular plate structure, the central part of the pressure plate 32 is fixedly connected to the top end of the piston rod of the air cylinder 31, four linear bearings 35 are arranged on the detection platform 1, the four guide rods 34 are respectively connected to the four linear bearings 35, the pressure plate 32 is fixed at the top ends of the four guide rods 34, the four guide rods 34 are respectively positioned at four corners of the pressure plate 32, a plurality of dial indicator locking blocks 36 are fixed on the lower surface of the pressure plate 32, the dial indicator locking blocks 36 are uniformly distributed on the lower surface of the pressure plate 32 in a matrix form, each electronic dial indicator 33 is fixedly connected to the corresponding dial indicator locking block 36, and the measuring ends of the electronic dial indicators 33 vertically upwards penetrate through the pressure plate 32, the measuring ends of the electronic dial indicators 33 are located at the same horizontal height, the pressing plate 32 is located right below the horizontal parts of the two inverted U-shaped supporting frames 21, and the measuring ends of the electronic dial indicators 33 vertically face the bottoms of the lithium battery modules 6 on the two inverted U-shaped supporting frames 21; the manual reversing valve 37 and the pressure reducing valve 38 of the air cylinder 31 are both fixed on the detection platform 1, an electrical cabinet 39 is also fixed on the detection platform 1, and the air cylinder 31 and the electronic dial indicators 33 are both connected with the electrical cabinet 39 to realize power supply;
the two pneumatic buffer mechanisms 4 are respectively positioned on the lateral sides of two ends of the pressing plate 32, each pneumatic buffer mechanism comprises an installation seat 41, an inverted L-shaped support 42, a hydraulic buffer 43, a fixing block 44 and a limiting bolt 45, the installation seat 41 is fixed on the detection platform 1, the bottom end of the inverted L-shaped support 42 is fixed on the installation seat 41, the horizontal part of the top end of the inverted L-shaped support 42 is positioned right above the end part of the pressing plate 32, the hydraulic buffer 43 is fixed on the horizontal part of the top end of the inverted L-shaped support 42, the piston end of the hydraulic buffer 43 faces the upper surface of the pressing plate 32, the fixing block 44 is fixed on the vertical part of the inverted L-shaped support 42 and is positioned right below the pressing plate 32, the limiting bolt 45 is vertically arranged, the bolt head of the limiting bolt is positioned at the top end, and the limiting bolt 45 is in threaded connection with the fixing block 44, so that the horizontal height of the top end of the limiting bolt 45 can be adjusted;
the data acquisition system 5 comprises a computer 51 and a hub 52, and output data lines 53 of a plurality of electronic dial indicators 33 are connected with the computer 51 through the hub 52.
The working principle of the invention is as follows:
(1) the pneumatic reversing valve 37 is closed firstly, the air cylinder 31 is reset, the air cylinder 31 drives the pressing plate 32 to descend, and due to the action of the two pneumatic buffering mechanisms 4, the limiting bolts 45 of the two pneumatic buffering mechanisms 4 abut against the two end parts of the lower surface of the pressing plate 32, so that the resetting of the measuring mechanism 3 is realized;
(2) the lithium battery module 6 is carried to the top ends of the two inverted U-shaped support frames 21, and one long side wall of the lithium battery module 6 abuts against the limiting strip 22, so that the lithium battery module 6 is positioned in the length direction and the width direction;
(3) after the positioning is finished, the pneumatic reversing valve 37 is opened, the air cylinder 31 drives the pressing plate 32 to move upwards, in the upwards moving process, two end parts of the upper surface of the pressing plate 32 are respectively contacted with the hydraulic buffers 43 of the two pneumatic buffering mechanisms 4, the measuring mechanism 3 is kept to stably and uniformly move upwards, when the pressing plate 32 is contacted with the horizontal parts of the two U-shaped supporting plates 21, the measuring mechanism 3 stops moving upwards, and at the moment, the measuring ends of the electronic dial indicators 33 are contacted with the bottom of the lithium battery module 6 and are in a compressed state;
(4) the electronic dial indicators 33 collect measurement data of the bottom plane of the lithium battery module 6, after the data to be measured are stable, the electronic dial indicators 33 transmit the measurement data to the computer 51 through the concentrator 52, the computer 51 determines whether error values among the measurement data exceed a set range according to the measurement data of the electronic dial indicators 33, if the error values do not exceed the set range, the flatness meets the standard, and if any of the measurement data error values exceeds the set range, the flatness does not meet the standard;
(5) after the measurement is finished, the pneumatic reversing valve 37 is closed, and the measuring mechanism 3 descends and resets.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a lithium cell module bottom flatness detection device which characterized in that: comprises a detection platform, a measuring mechanism and a data acquisition system;
the measuring mechanism comprises an air cylinder, a pressing plate and a plurality of electronic dial indicators, the air cylinder, the pressing plate and the electronic dial indicators are arranged on the detection platform, a piston rod of the air cylinder is fixedly connected with the pressing plate, the electronic dial indicators are uniformly distributed on the pressing plate, measuring ends of the electronic dial indicators are perpendicular to the bottom of the lithium battery module on the detection platform, and data output ends of the electronic dial indicators are connected with the data acquisition system.
2. The lithium battery module bottom flatness detection device of claim 1, characterized in that: the detection platform is also fixedly provided with a module positioning support frame, the module positioning support frame comprises two inverted U-shaped support frames fixed on the detection platform, the two inverted U-shaped support frames are parallel to each other, and two end parts of the lithium battery module are respectively supported on the horizontal parts of the top ends of the two inverted U-shaped support frames; the air cylinder is fixed on the detection platform, a piston rod of the air cylinder vertically extends upwards and is fixedly connected with the pressing plate, the measuring ends of the electronic dial indicators vertically penetrate through the pressing plate upwards, and the measuring ends of the electronic dial indicators are located at the same horizontal height.
3. The device for detecting the flatness of the bottom of the lithium battery module as recited in claim 2, wherein: the module positioning mechanism further comprises a limiting strip, the limiting strip is adjacent to the vertical parts of the two inverted U-shaped supporting frames on the same side, the two end parts of the limiting strip are respectively supported and fixed on the horizontal parts of the top ends of the two inverted U-shaped supporting frames, and the lithium battery module is supported on the module positioning supporting frame and is close to the limiting strip.
4. The device for detecting the flatness of the bottom of the lithium battery module as recited in claim 2, wherein: the measuring mechanism further comprises four guide rods, the detecting platform is provided with four linear bearings, the four guide rods are respectively connected onto the four linear bearings, the pressing plate is of a rectangular plate structure, the pressing plate is fixed at the top ends of the four guide rods, the four guide rods are respectively located at four corners of the pressing plate, a piston rod of the air cylinder vertically extends upwards and is fixedly connected with the central portion of the pressing plate, and the electronic dial indicators are uniformly distributed on the lower surface of the pressing plate in a matrix mode.
5. The lithium battery module bottom flatness detection device of claim 2, characterized in that: the detection platform on still be fixed with two pneumatic buffer gear, two pneumatic buffer gear are located the side at clamp plate both ends respectively, every pneumatic buffer gear is all including the mount pad, the type of falling L support, hydraulic buffer, fixed block and spacing bolt, the mount pad is fixed in on the detection platform, the bottom mounting of the type of falling L support, the horizontal part on type of falling L support top is located the clamp plate tip directly over, hydraulic buffer is fixed in on the horizontal part on type of falling L support top, hydraulic buffer's piston end is towards the upper surface of clamp plate, the fixed block is fixed in on the vertical part of the type of falling L support and is located the clamp plate directly under, the vertical setting of spacing bolt and its bolt head are located the top, spacing bolt threaded connection is on the fixed block.
6. The lithium battery module bottom flatness detection device of claim 1, characterized in that: the pressure plate is evenly distributed with a plurality of dial indicator locking blocks, and each electronic dial indicator is fixedly connected to the corresponding dial indicator locking block.
7. The lithium battery module bottom flatness detection device of claim 1, characterized in that: and the manual reversing valve and the pressure reducing valve of the air cylinder are both arranged on the detection platform.
8. The lithium battery module bottom flatness detection device of claim 1, characterized in that: the data acquisition system comprises a computer and a concentrator, and output data lines of a plurality of electronic dial gauges are connected with the computer through the concentrator.
9. The lithium battery module bottom flatness detection device of claim 1, characterized in that: the detection platform is fixedly provided with an electric cabinet, and the air cylinder and the electronic dial indicators are connected with the electric cabinet to realize power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210205021.1A CN114688949B (en) | 2022-03-02 | 2022-03-02 | Bottom flatness detection device for lithium battery module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210205021.1A CN114688949B (en) | 2022-03-02 | 2022-03-02 | Bottom flatness detection device for lithium battery module |
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| CN114688949A true CN114688949A (en) | 2022-07-01 |
| CN114688949B CN114688949B (en) | 2023-05-09 |
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Cited By (2)
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| CN116222481A (en) * | 2023-05-06 | 2023-06-06 | 无锡麦格威精密机械有限公司 | New energy battery envelope contour degree automatic measuring instrument |
| CN116576805A (en) * | 2023-05-30 | 2023-08-11 | 山东聚金龙汽车发展有限公司 | Hydrogen fuel cell membrane electrode flatness detection device |
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