CN114353677A - Lithium battery shaping testing device - Google Patents
Lithium battery shaping testing device Download PDFInfo
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- CN114353677A CN114353677A CN202111611283.XA CN202111611283A CN114353677A CN 114353677 A CN114353677 A CN 114353677A CN 202111611283 A CN202111611283 A CN 202111611283A CN 114353677 A CN114353677 A CN 114353677A
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- lithium battery
- connecting rod
- clamping plate
- sliding
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- 238000007493 shaping process Methods 0.000 title claims abstract description 105
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 100
- 238000012360 testing method Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 20
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 13
- 229910001416 lithium ion Inorganic materials 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 230000004075 alteration Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention provides a lithium battery shaping test device which comprises a square box-shaped device body, wherein a lithium battery clamping component and a lithium battery shaping device are arranged on the left side in the device body; the lithium battery clamping assembly is connected with the data reading assembly through a connecting rod assembly, and the connecting rod assembly is composed of a first connecting rod and a second connecting rod which are identical and arranged in a crossed X shape. The lithium battery shaping test device is compact in structure, effectively combines the shaping process and the test process of the lithium battery, is high in automation degree, reduces the influence of human factors, and is high in accuracy and strong in stability; through the mode of amplifying and reading data, the test precision is higher, and efficiency is higher, and the commonality is good, convenient to use.
Description
Technical Field
The invention belongs to the technical field of battery production testing, and particularly relates to a lithium battery shaping testing device.
Background
The lithium battery has the remarkable advantages of high energy density, small self-discharge, excellent cycle performance, high charging efficiency, long service life and the like, and is increasingly widely applied to the fields of electronic products, electric vehicles, aerospace, military and the like.
In the production and processing process of the lithium battery, the lithium battery needs to be shaped and tested to be qualified, the automation degree in the production process of manufacturing the lithium battery is low at present, the shaping process and the testing process are separately carried out, the labor intensity of workers is increased, and the production efficiency is reduced. In addition, in the current testing process, the appearance size of the shaped lithium battery is mainly measured by manually adopting a caliper, so that the manual measurement error is large, and the production efficiency is low.
Disclosure of Invention
Aiming at the problems, the invention provides a lithium battery shaping test device which comprises a square box-shaped device body, wherein a lithium battery clamping component and a lithium battery shaping device are arranged on the left side in the device body; the lithium battery clamping assembly is connected with the data reading assembly through a connecting rod assembly, and the connecting rod assembly is composed of a first connecting rod and a second connecting rod which are identical and arranged in a crossed X shape.
Furthermore, the lithium battery shaping device comprises a shaping fixed base and a shaping movable base, wherein a lower die and an upper die are respectively arranged on the upper end face of the shaping fixed base and the lower end face of the shaping movable base, the upper die is arranged right above the lower die, a telescopic device is arranged on the upper end face of the shaping movable base, and heating devices are arranged in the lower die and the upper die.
Further, the lithium battery clamping assembly comprises a first limiting clamping plate and a second limiting clamping plate, and the first limiting clamping plate and the second limiting clamping plate are symmetrically arranged on the front side and the rear side of the shaping fixed base; the rear end face of the first limiting clamping plate and the front end face of the second limiting clamping plate are respectively provided with two mutually parallel clamping telescopic rods, and the rear ends of the clamping telescopic rods are respectively arranged on the inner wall of the device body.
Furthermore, the center of the front end face of the first limiting clamping plate and the center of the rear end face of the second limiting clamping plate are provided with clamping tool bits, pressure sensors are mounted on the clamping tool bits, and the clamping telescopic rods are controlled to stretch out and draw back through clamping telescopic hydraulic motors.
Furthermore, the data reading assembly comprises two parallel first sliding rods, a front baffle and a rear baffle, two ends of each sliding rod are respectively fixed on the front inner wall and the rear inner wall of the right side of the device body, and the front baffle and the rear baffle are parallel to each other and are both installed on the first sliding rods; the front end and the rear end of the first sliding rod are respectively provided with a sliding rod fixing seat, the front inner wall and the rear inner wall on the right side in the device body are respectively provided with a sliding rod sliding rail, and the two sliding rod fixing seats are respectively installed on the two sliding rod sliding rails and can freely slide; the laser ranging device is characterized in that a laser ranging receiving end is embedded into the rear end face of the front baffle, a laser ranging transmitting end is embedded into the front end face of the rear baffle, and the laser ranging receiving end and the laser ranging transmitting end are both connected to the control display terminal.
Furthermore, the upper end face of the left side and the right side of the device body is respectively provided with a left side sealing cover and a right side transparent sealing cover, and a shaping test hole is formed in the left side sealing cover above the shaping fixed base of the lithium battery shaping device.
Furthermore, two slide bar mounting holes are formed in the front baffle and the rear baffle, a plurality of universal balls are embedded into the inner walls of the slide bar mounting holes, and the first slide bars are respectively arranged in the two slide bar mounting holes of the front baffle and the two slide bar mounting holes of the rear baffle.
Furthermore, two ends of the first connecting rod are respectively hinged to the right end of the second limiting clamping plate and the left end of the rear baffle, and two ends of the second connecting rod are respectively hinged to the right end of the first limiting clamping plate and the left end of the front baffle; a sliding vertical rod is vertically arranged at the X-shaped cross connection position of the first connecting rod and the second connecting rod, and the lower end of the sliding vertical rod is arranged in a sliding groove arranged at the bottom in the device body; the sliding groove is perpendicular to the clamping telescopic rod and the sliding rod I, grooves are formed in the two inner side walls of the sliding groove, limiting blocks are arranged on the front side and the rear side of the lower end of the outer wall of the sliding vertical rod, and the two limiting blocks of the sliding vertical rod are clamped in the two grooves respectively; pulleys are arranged on the upper end face, the lower end face, the outer end face and the bottom end face of the sliding vertical rod of the limiting block; the first connecting rod and the second connecting rod are both mounted on the sliding vertical rod through bearings, and limit sealing pieces are arranged on the sliding vertical rod below the connecting rods, above the second connecting rods, between the first connecting rod and the second connecting rod.
Further, the test and use method of the lithium battery shaping test device comprises the following steps:
s1, controlling the clamping telescopic rod to contract through the clamping telescopic hydraulic motor, and separating the first limiting clamping plate from the second limiting clamping plate;
s2, heating the lower die and the upper die respectively by using heating devices arranged in the lower die and the upper die, and hoisting the shaping movable base by using a telescopic device and keeping away from the left side sealing cover;
s3, placing the lithium electronic battery to be subjected to shaping test into a lower die of the upper end face of the shaping fixed base through the shaping test hole formed in the left side sealing cover, clamping an upper die of the shaping movable base onto the lower die by using a telescopic device, and shaping the lithium electronic battery to be subjected to shaping test by using the heated upper die and the heated lower die;
s4, after the lithium ion battery is shaped, hoisting the shaping movable base again by using the telescopic device and keeping away from the left side sealing cover;
s5, controlling the extension of the clamping telescopic rod through a clamping telescopic hydraulic motor, enabling a first limiting clamping plate and a second limiting clamping plate to be close to each other, and finally enabling two clamping tool bits arranged at the centers of the front end face of the first limiting clamping plate and the rear end face of the second limiting clamping plate to be clamped and clamped on two sides of a to-be-tested part of the lithium ion battery respectively, and controlling the clamping telescopic rod to stop extending by the clamping telescopic hydraulic motor when pressure sensor data mounted on the clamping tool bits reach a preset critical value;
s6, in the process of extending the clamping telescopic rod, the data reading component slides in the inner area on the right side of the device body, after the clamping telescopic rod stops extending, the data reading component is also stabilized, at the moment, the laser ranging transmitting end of the front end face of the rear baffle plate is controlled to transmit a laser signal, the laser ranging receiving end in the rear end face of the front baffle plate receives the laser signal, so that the distance K between the rear baffle plate and the front baffle plate is obtained, finally, the gap distance between the two clamping tool bits of the first limiting clamping plate and the second limiting clamping plate is calculated through the conversion of a test calculation formula, namely the thickness H of the part to be tested of the lithium electronic battery to be tested is obtained, and finally, the thickness H is displayed on the control display terminal;
s7, similarly, the thickness H of a plurality of parts to be tested of the lithium electronic battery to be tested is measured, and whether the lithium electronic battery to be tested meets the requirements after shaping can be judged.
Further, the test calculation formula of the thickness H of the part to be tested of the lithium ion battery to be tested is as follows:
H =( K +H3 / 2 + H4 / 2)/(L2/L1) -（H1/ 2+H2 / 2+L3*2），
k is the distance between the rear end face of the front baffle and the front end face of the rear baffle; h1The thickness of the first limiting clamping plate is adopted; h2The thickness of the limiting clamping plate II is equal to that of the limiting clamping plate II; h3Is the thickness of the front baffle plate; h4Is the thickness of the rear baffle plate; l is1The distance from the axis of the sliding vertical rod to the hinge axis of the first connecting rod and the second limiting clamping plate or the distance from the axis of the sliding vertical rod to the hinge axis of the second connecting rod and the first limiting clamping plate; l is2The distance from the axis of the sliding vertical rod to the hinge axis of the first connecting rod and the rear baffle plate or the distance from the axis of the sliding vertical rod to the hinge axis of the second connecting rod and the front baffle plate; l is3Is the length of the clamping tool bit.
According to the lithium battery shaping test device provided by the invention, the shaping of a lithium battery is realized through the lithium battery shaping device arranged on the left side in the device body; the lithium battery clamping assembly arranged on the left side inside the device body is used for fixedly clamping the lithium battery, and the connecting rod I and the connecting rod II which are arranged in an X-shaped mode in a crossed mode are connected with the data reading assembly to amplify the thickness of the part to be tested of the lithium battery, so that the testing precision of the thickness is effectively improved; the extension capacity of the telescopic link is got through pressure sensor control clamp in the subassembly is got to the lithium cell clamp to and two clamps on spacing cardboard one, the spacing cardboard two are got the block dynamics that the tool bit is to the lithium ion battery position that awaits measuring, reduce the influence of artificially not a pair of test result hard of measurement, the degree of accuracy is high, and stability is strong. The lithium battery shaping test device is compact in structure, effectively combines the shaping process and the test process of the lithium battery, is high in automation degree, reduces the influence of human factors, and is high in accuracy and strong in stability; through the mode of amplifying and reading data, the test precision is higher, and efficiency is higher, and the commonality is good, convenient to use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 shows a front view of a lithium battery shaping test device according to the present invention.
Fig. 2 shows a structural plan view of the lithium battery shaping test device according to the present invention.
Fig. 3 shows an enlarged view of the structure at B in fig. 2 according to the present invention.
Fig. 4 shows a cross-sectional view of the structure a-a of fig. 2 according to the present invention.
Fig. 5 is a schematic view showing a connection structure of the first connecting rod, the second connecting rod, the sliding chute and the sliding stand rod according to the present invention.
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. 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.
Example 1:
in order to solve the above problems, referring to fig. 1 to 5, the present invention provides a lithium battery shaping test device, which includes a square box-shaped device body 1, a lithium battery clamping component 2 and a lithium battery shaping device 3 are arranged on the left side inside the device body 1, and the lithium battery shaping device 3 is installed in the center of the lithium battery clamping component 2.
The lithium battery clamping assembly 2 comprises a first limiting clamping plate 22 and a second limiting clamping plate 23, and the first limiting clamping plate 22 and the second limiting clamping plate 23 are symmetrically arranged on the front side and the rear side of the shaping fixed base 31; all be provided with two clamps that are parallel to each other on the rear end face of spacing cardboard one 22, the terminal surface before spacing cardboard two 23 and get telescopic link 21, press from both sides and get telescopic link 21 back end and all install on 1 inner wall of device body. The center of the front end face of the first limiting clamping plate 22 and the center of the rear end face of the second limiting clamping plate 23 are provided with clamping tool bits 24, pressure sensors are mounted on the clamping tool bits 24, and the clamping telescopic rods 21 are controlled to stretch out and draw back through clamping telescopic hydraulic motors.
The lithium battery shaping device 3 comprises a shaping fixed base 31 and a shaping movable base 32, wherein the upper end face of the shaping fixed base 31 and the lower end face of the shaping movable base 32 are respectively provided with a lower die 33 and an upper die 34, the upper die 34 is arranged right above the lower die 33, the upper end face of the shaping movable base 32 is provided with a telescopic device 35, and heating devices are arranged in the lower die 33 and the upper die 34.
The upper end face of the left side and the right side of the device body 1 is respectively provided with a left sealing cover 11 and a right transparent sealing cover 12, and a shaping test hole 14 is formed in the left sealing cover 11 above the shaping fixing base 31 of the lithium battery shaping device 3.
The right side in the device body 1 is provided with a data reading assembly 4, the data reading assembly 4 comprises two parallel sliding rods I41, a front baffle 42 and a rear baffle 43, two ends of each sliding rod I41 are respectively fixed on the front inner wall and the rear inner wall of the right side of the device body 1, and the front baffle 42 and the rear baffle 43 are parallel to each other and are both arranged on the two sliding rods I41; the front end and the rear end of each of the first sliding rods 41 are respectively provided with a sliding rod fixing seat 44, the front inner wall and the rear inner wall of the right side in the device body 1 are respectively provided with a sliding rod sliding rail, and the two sliding rod fixing seats 44 are respectively installed on the two sliding rod sliding rails and can freely slide; the laser ranging receiving end 45 is embedded in the rear end face of the front baffle 42, the laser ranging transmitting end 46 is embedded in the front end face of the rear baffle 43, and the laser ranging receiving end 45 and the laser ranging transmitting end 46 are both connected to the control display terminal. Two slide bar mounting holes are formed in the front baffle 42 and the rear baffle 43 respectively, a plurality of universal balls are embedded into the inner walls of the slide bar mounting holes, and the two first slide bars 41 are arranged in the two slide bar mounting holes of the front baffle 42 and the two slide bar mounting holes of the rear baffle 43 respectively.
The lithium battery clamping assembly 2 and the data reading assembly 4 are connected through a connecting rod assembly 5, and the connecting rod assembly 5 is composed of a first connecting rod 51 and a second connecting rod 52 which are identical and arranged in a cross X shape. Two ends of the first connecting rod 51 are respectively hinged to the right end of the second limiting clamping plate 23 and the left end of the rear baffle 43, and two ends of the second connecting rod 52 are respectively hinged to the right end of the first limiting clamping plate 22 and the left end of the front baffle 42.
The X-shaped cross connection part of the first connecting rod 51 and the second connecting rod 52 is vertically provided with a sliding vertical rod 7, and the lower end of the sliding vertical rod 7 is arranged in a sliding groove 6 arranged at the bottom in the device body 1. The sliding groove 6 is perpendicular to the clamping telescopic rod 21 and the sliding rod I41, the two inner side walls of the sliding groove 6 are respectively provided with a groove 62, the front side and the rear side of the lower end of the outer wall of the sliding upright rod 7 are respectively provided with a limiting block 72, and the two limiting blocks 72 of the sliding upright rod 7 are respectively clamped in the two grooves 62; pulleys 73 are arranged on the upper end face, the lower end face and the outer end face of the limiting block 72 and the bottom end face of the sliding upright rod 7; the first connecting rod 51 and the second connecting rod 52 are both mounted on the sliding vertical rod 7 through bearings, and limiting sealing elements 71 are arranged below the first connecting rod 51, above the second connecting rod 52 and on the sliding vertical rod 7 between the first connecting rod 51 and the second connecting rod 52.
The lithium battery shaping test device comprises the following test using method:
s1, controlling the clamping telescopic rod 21 to contract through the clamping telescopic hydraulic motor, and separating the first limiting clamping plate 22 from the second limiting clamping plate 23;
s2, heating the lower die 33 and the upper die 34 by the heating devices provided in the lower die 33 and the upper die 34, respectively, and lifting the shaping moving base 32 away from the left side cover 11 by the expansion device 35;
s3, placing the lithium ion battery to be subjected to the shaping test into the lower die 33 on the upper end surface of the shaping fixed base 31 through the shaping test hole 14 formed in the left side sealing cover 11, clamping the upper die 34 of the shaping movable base 32 onto the lower die 33 by using the telescopic device 35, and shaping the lithium ion battery to be subjected to the shaping test by using the heated upper die 34 and the lower die 33;
s4, after the lithium ion battery is shaped, the shaping movable base 32 is lifted again by the aid of the telescopic device 35 and is far away from the left sealing cover 11;
s5, controlling the extension of the clamping telescopic rod 21 through the clamping telescopic hydraulic motor to enable the first limiting clamping plate 22 and the second limiting clamping plate 23 to be close to each other, finally enabling two clamping tool bits 23 arranged at the centers of the front end face of the first limiting clamping plate 22 and the rear end face of the second limiting clamping plate 23 to be clamped and clamped on two sides of a to-be-tested part of the lithium ion battery respectively, and controlling the clamping telescopic rod 21 to stop extending by the clamping telescopic hydraulic motor when the data of a pressure sensor mounted on the clamping tool bits 23 reach a preset critical value;
s6, in the process of extending the clamping telescopic rod 21, the data reading component 4 slides in the inner area on the right side of the device body 1, after the clamping telescopic rod 21 stops extending, the data reading component 4 is also stabilized, at this time, the laser ranging transmitting end 46 on the front end face of the rear baffle 43 is controlled to transmit a laser signal, the laser ranging receiving end 45 in the rear end face of the front baffle 42 receives the laser signal, so that the distance K between the rear baffle 43 and the front baffle 42 is obtained, and finally, the gap distance between the two clamping tool bits 23 of the first limiting clamping plate 22 and the second limiting clamping plate 23 is calculated through the conversion of a test calculation formula, namely the thickness H of the part to be tested of the lithium electronic battery to be tested, and is displayed on the control display terminal;
s7, similarly, the thickness H of a plurality of parts to be tested of the lithium electronic battery to be tested is measured, and whether the lithium electronic battery to be tested meets the requirements after shaping can be judged.
The test calculation formula of the thickness H of the part to be tested of the lithium electronic battery to be tested is as follows:
H =( K +H3 / 2 + H4 / 2)/(L2/L1) -（H1/ 2+H2 / 2+L3*2），
wherein K is a distance between the rear end surface of the front baffle 42 and the front end surface of the rear baffle 43; h1The thickness of the first limit clamping plate 22; h2The thickness of the second limiting clamping plate 23; h3Is the thickness of the front baffle 42Degree; h4Is the thickness of the tailgate 43; l is1The distance from the axis of the sliding vertical rod 7 to the hinge axis of the first connecting rod 51 and the second limiting clamping plate 23 or the distance from the axis of the sliding vertical rod 7 to the hinge axis of the second connecting rod 52 and the first limiting clamping plate 22; l is2The distance from the axis of the sliding upright rod 7 to the hinge axis of the first connecting rod 51 and the rear baffle 43, or the distance from the axis of the sliding upright rod 7 to the hinge axis of the second connecting rod 52 and the front baffle 42; l is3Is the length of the grasping head 24.
Each parameter of the lithium battery shaping test device is respectively as follows:
H1：8mm；H2：10mm；H3：14mm；H4：16mm；L1：5mm，L2: 50mm, so L2/L110, i.e. a magnification of 10; l is3：8mm。
The lithium battery shaping test device is used for measuring the thickness of different parts of a plurality of lithium electronic batteries, and the read measurement data K and the thickness H data of the part to be tested of the lithium electronic battery to be tested, which is obtained by a test calculation formula, are as follows (part):
| number of battery | Part of battery to be tested | K（mm） | H（mm） |
| M1 | Ⅰ | 350 | 11.5 |
| M1 | Ⅱ | 364 | 12.9 |
| M1 | Ⅲ | 426 | 19.1 |
| M1 | Ⅳ | 912 | 67.7 |
| M2 | Ⅰ | 346 | 11.1 |
| M2 | Ⅱ | 367 | 13.2 |
| M2 | Ⅲ | 430 | 19.5 |
| M2 | Ⅳ | 915 | 68.0 |
| M3 | Ⅰ | 353 | 11.8 |
| M3 | Ⅱ | 360 | 12.5 |
| M3 | Ⅲ | 431 | 19.6 |
| M3 | Ⅳ | 911 | 67.6 |
Example 2:
the invention provides a lithium battery shaping test device, which has basically the same structure as that of embodiment 1 and is different in that: the lithium battery shaping test device of the invention, wherein the thicknesses of the first limit clamping plate 22, the second limit clamping plate 23, the front baffle 42 and the rear baffle 43 are the same, and the parameters are respectively as follows:
H1：20mm，H2：20mm，H3：20mm，H4：20mm，L1：10mm，L2: 50mm, so L2/L15, i.e. a magnification of 5; l is3：8mm。
The lithium battery shaping test device is used for measuring the thickness of different parts of a plurality of lithium electronic batteries, and the read measurement data K and the thickness H data of the part to be tested of the lithium electronic battery to be tested, which is obtained by a test calculation formula, are as follows (part):
| number of battery | Part of battery to be tested | K（mm） | H（mm） |
| M4 | Ⅰ | 218 | 11.6 |
| M4 | Ⅱ | 225 | 13.0 |
| M4 | Ⅲ | 255 | 19.0 |
| M4 | Ⅳ | 498 | 67.6 |
| M5 | Ⅰ | 220 | 12.0 |
| M5 | Ⅱ | 224 | 12.8 |
| M5 | Ⅲ | 257 | 19.4 |
| M5 | Ⅳ | 501 | 68.2 |
| M6 | Ⅰ | 217 | 11.4 |
| M6 | Ⅱ | 227 | 13.4 |
| M6 | Ⅲ | 255 | 19.0 |
| M6 | Ⅳ | 497 | 67.4 |
According to the lithium battery shaping testing device, after the lithium battery is shaped, when the thickness of different parts of the lithium battery is measured, the thickness H of the part to be tested is calculated through a calculation program installed in the control display terminal and a calculation formula, and is finally displayed on the control display terminal.
The control display terminal can effectively store and display a plurality of collected and calculated data, the reasonable range of H is preset in the control display terminal, and once the thickness H of a certain part of the shaped lithium battery exceeds the reasonable range of the thickness H, the alarm lamp pre-installed on the lithium battery shaping test device can distinguish that the shaped lithium battery does not meet the specified requirements, so that the working efficiency of the lithium battery shaping test can be effectively improved.
According to the lithium battery shaping test device provided by the invention, the shaping of a lithium battery is realized through the lithium battery shaping device 3 arranged on the left side in the device body 1; the lithium battery clamping assembly 2 arranged on the left side inside the device body 1 is used for fixedly clamping the lithium battery, and the connecting rod I51 and the connecting rod II 52 which are arranged in an X-shaped mode in a crossed mode are connected with the data reading assembly 4, so that the thickness of a part to be tested of the lithium battery is amplified, and the testing precision of the thickness is effectively improved; the extension capacity of getting telescopic link 21 is got through pressure sensor control clamp in the lithium cell presss from both sides subassembly 2 to and two clamps on spacing cardboard one 22, the spacing cardboard two 23 are got the block dynamics of tool bit 24 to the lithium ion battery position that awaits measuring, reduce artificial measurement and exert oneself influence of not a pair of test result hard, the degree of accuracy is high, and stability is strong.
The lithium battery shaping test device is compact in structure, effectively combines the shaping process and the test process of the lithium battery, is high in automation degree, reduces the influence of human factors, and is high in accuracy and strong in stability; through the mode of amplifying and reading data, the test precision is higher, and efficiency is higher, and the commonality is good, convenient to use.
It is to be understood that the terms "upwardly," "downwardly," "leftward," "rightward," "vertical," "inwardly," and the like are used herein for purposes of description only. Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The lithium battery shaping testing device is characterized by comprising a square box-shaped device body (1), wherein a lithium battery clamping component (2) and a lithium battery shaping device (3) are arranged on the left side inside the device body (1), a data reading component (4) is arranged on the right side inside the device body (1), and the lithium battery shaping device (3) is installed in the center of the lithium battery clamping component (2); the lithium battery clamping assembly (2) is connected with the data reading assembly (4) through a connecting rod assembly (5), and the connecting rod assembly (5) is composed of a first connecting rod (51) and a second connecting rod (52) which are identical and arranged in a crossed X shape.
2. The lithium battery shaping test device according to claim 1, wherein the lithium battery shaping device (3) comprises a shaping fixed base (31) and a shaping movable base (32), a lower die (33) and an upper die (34) are respectively arranged on the upper end surface of the shaping fixed base (31) and the lower end surface of the shaping movable base (32), the upper die (34) is arranged right above the lower die (33), a telescopic device (35) is arranged on the upper end surface of the shaping movable base (32), and heating devices are respectively arranged in the lower die (33) and the upper die (34).
3. The lithium battery shaping test device according to claim 2, wherein the lithium battery clamping assembly (2) comprises a first limiting clamping plate (22) and a second limiting clamping plate (23), and the first limiting clamping plate (22) and the second limiting clamping plate (23) are symmetrically arranged on the front side and the rear side of the shaping fixed base (31); the rear end face of the first limiting clamping plate (22) and the front end face of the second limiting clamping plate (23) are respectively provided with two clamping telescopic rods (21) which are parallel to each other, and the rear ends of the clamping telescopic rods (21) are respectively arranged on the inner wall of the device body (1).
4. The lithium battery shaping test device according to claim 3, wherein the centers of the front end surface of the first limiting clamping plate (22) and the rear end surface of the second limiting clamping plate (23) are provided with clamping tool heads (24), the clamping tool heads (24) are provided with pressure sensors, and the telescopic clamping rods (21) are controlled to stretch and retract by clamping telescopic hydraulic motors.
5. The lithium battery shaping test device according to claim 4, wherein the data reading assembly (4) comprises two parallel first sliding rods (41), a front baffle (42) and a rear baffle (43), two ends of the first sliding rods (41) are respectively fixed on the front inner wall and the rear inner wall of the right side of the device body (1), and the front baffle (42) and the rear baffle (43) are parallel to each other and are respectively installed on the two first sliding rods (41); the front end and the rear end of each of the first sliding rods (41) are respectively provided with a sliding rod fixing seat (44), the front inner wall and the rear inner wall of the right side in the device body (1) are respectively provided with a sliding rod sliding rail, and the two sliding rod fixing seats (44) are respectively installed on the two sliding rod sliding rails and can freely slide; the embedded laser ranging device is characterized in that a laser ranging receiving end (45) is embedded in the rear end face of the front baffle (42), a laser ranging transmitting end (46) is embedded in the front end face of the rear baffle (43), and the laser ranging receiving end (45) and the laser ranging transmitting end (46) are connected to the control display terminal.
6. The lithium battery shaping test device according to claim 5, wherein the upper end surfaces of the left side and the right side of the device body (1) are respectively provided with a left side sealing cover (11) and a right side transparent sealing cover (12), and the left side sealing cover (11) above the shaping fixing base (31) of the lithium battery shaping device (3) is provided with a shaping test hole (14).
7. The lithium battery shaping test device according to claim 6, wherein the front baffle (42) and the rear baffle (43) are provided with two slide bar mounting holes, the inner walls of the slide bar mounting holes are embedded with a plurality of universal balls, and the two first slide bars (41) are respectively arranged in the two slide bar mounting holes of the front baffle (42) and the rear baffle (43).
8. The lithium battery shaping test device according to claim 7, wherein two ends of the first connecting rod (51) are respectively hinged to the right end of the second limiting clamping plate (23) and the left end of the rear baffle (43), and two ends of the second connecting rod (52) are respectively hinged to the right end of the first limiting clamping plate (22) and the left end of the front baffle (42); a sliding vertical rod (7) is vertically arranged at the X-shaped cross connection position of the first connecting rod (51) and the second connecting rod (52), and the lower end of the sliding vertical rod (7) is arranged in a sliding groove (6) arranged at the bottom in the device body (1); the sliding groove (6) is perpendicular to the clamping telescopic rod (21) and the sliding rod I (41), grooves (62) are formed in the two inner side walls of the sliding groove (6), limiting blocks (72) are arranged on the front side and the rear side of the lower end of the outer wall of the sliding upright rod (7), and the two limiting blocks (72) of the sliding upright rod (7) are respectively clamped in the two grooves (62); pulleys (73) are arranged on the upper end face, the lower end face and the outer end face of the limiting block (72) and the bottom end face of the sliding vertical rod (7); and the first connecting rod (51) and the second connecting rod (52) are both mounted on the sliding vertical rod (7) through bearings, and limit sealing elements (71) are arranged on the sliding vertical rod (7) between the first connecting rod (51) and the second connecting rod (52), above the second connecting rod (52) and between the first connecting rod (51) and the second connecting rod (52).
9. The lithium battery shaping test device as claimed in claim 8, wherein the lithium battery shaping test device is used in a test method comprising the following steps:
s1, controlling the clamping telescopic rod (21) to contract through the clamping telescopic hydraulic motor, and separating the limiting clamping plate I (22) from the limiting clamping plate II (23);
s2, heating the lower die (33) and the upper die (34) by utilizing heating devices arranged in the lower die (33) and the upper die (34), and hoisting the shaping moving base (32) by utilizing the telescopic device (35) and keeping away from the left side sealing cover (11);
s3, placing the lithium-ion battery to be subjected to the shaping test into a lower die (33) on the upper end surface of a shaping fixed base (31) through a shaping test hole (14) formed in a left side sealing cover (11), clamping an upper die (34) of a shaping moving base (32) onto the lower die (33) by using a telescopic device (35), and shaping the lithium-ion battery to be subjected to the shaping test by using the heated upper die (34) and the heated lower die (33);
s4, after the lithium ion battery is shaped, the shaping movable base (32) is lifted again by using the telescopic device (35) and is far away from the left side sealing cover (11);
s5, controlling the extension of the clamping telescopic rod (21) through a clamping telescopic hydraulic motor, enabling a first limiting clamping plate (22) and a second limiting clamping plate (23) to be close to each other, and finally enabling two clamping tool bits (24) arranged at the centers of the front end face of the first limiting clamping plate (22) and the rear end face of the second limiting clamping plate (23) to be clamped and clamped on two sides of a to-be-tested part of the lithium ion battery respectively, and controlling the clamping telescopic rod (21) to stop extending by the clamping telescopic hydraulic motor when data of a pressure sensor mounted on the clamping tool bits (24) reach a preset critical value;
s6, in the process of extending the clamping telescopic rod (21), the data reading component (4) slides in the inner area on the right side of the device body (1), after the clamping telescopic rod (21) stops extending, the data reading component (4) is also stabilized, a laser ranging transmitting end (46) of the front end face of the rear baffle (43) is controlled to transmit laser signals, a laser ranging receiving end (45) of the rear end face of the front baffle (42) receives the laser signals, so that the distance K between the rear baffle (43) and the front baffle (42) is obtained, and finally the gap distance between the first limiting clamping plate (22) and the two clamping tool bits (24) of the second limiting clamping plate (23) is calculated through conversion of a test calculation formula, namely the gap distance is the thickness H of the part to be tested of the lithium electronic battery to be tested and is displayed on a control display terminal;
s7, similarly, the thickness H of a plurality of parts to be tested of the lithium electronic battery to be tested is measured, and whether the lithium electronic battery to be tested meets the requirements after shaping can be judged.
10. The lithium battery shaping test device according to claim 9, wherein a test calculation formula of the thickness H of the part to be tested of the lithium battery to be tested is as follows:
H =( K +H3 / 2 + H4 / 2)/(L2/L1)-（H1/ 2+H2 / 2+L3*2），
k is the distance between the rear end face of the front baffle (42) and the front end face of the rear baffle (43); h1The thickness of the first limit clamping plate (22); h2The thickness of the second limiting clamping plate (23); h3Is the thickness of the front baffle (42); h4Is the thickness of the tailgate (43); l is1The distance from the axis of the sliding vertical rod (7) to the hinge axis of the connecting rod I (51) and the limiting clamping plate II (23), or the distance from the axis of the sliding vertical rod (7) to the hinge axis of the connecting rod II (52) and the limiting clamping plate I (22); l is2The distance from the axle center of the sliding upright rod (7) to the hinge axle center of the connecting rod I (51) and the rear baffle (43), or the distance from the axle center of the sliding upright rod (7) to the hinge axle center of the connecting rod II (52) and the front baffle (42); l is3Is the length of the gripping head (24).
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