CN109378495B - Withstand voltage tester for battery cell - Google Patents
Withstand voltage tester for battery cell Download PDFInfo
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- CN109378495B CN109378495B CN201811472060.8A CN201811472060A CN109378495B CN 109378495 B CN109378495 B CN 109378495B CN 201811472060 A CN201811472060 A CN 201811472060A CN 109378495 B CN109378495 B CN 109378495B
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- 238000012360 testing method Methods 0.000 claims abstract description 147
- 238000012546 transfer Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 11
- 210000004027 cell Anatomy 0.000 description 136
- 239000002699 waste material Substances 0.000 description 7
- 239000002923 metal particle Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
- H01M6/5083—Testing apparatus
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a battery cell withstand voltage testing machine, which relates to the technical field of battery cell preparation, and comprises a testing device; the testing device comprises at least one group of first driving device and a clamping device, the clamping device is fixed at the driving end of the first driving device, the clamping device can be pushed into the battery cell jig by the clamping device, and the clamping device can drive the clamping part to clamp the inner lug of the battery cell. The technical problem that the battery cell voltage withstand testing machine in the prior art is complex in detection steps and low in battery cell detection efficiency is solved.
Description
Technical Field
The invention relates to the technical field of battery cell preparation, in particular to a battery cell withstand voltage testing machine.
Background
During the production process of the battery core, very small metal particles may be mixed in the battery core due to various reasons, and during the use process of the battery, due to temperature change or impact, the metal particles can puncture the separator between the positive electrode and the negative electrode, so that the battery is internally shorted, and the battery is heated to cause ignition. The situation that the metal particles pierce the diaphragm to cause internal short circuit is simulated by a forced internal short circuit test because the metal particles cannot be completely avoided being mixed, if the battery can ensure that the fire and explosion risks do not occur in the test process, the battery can effectively ensure that the diaphragm between the anode and the cathode cannot be pierced even if the metal particles are mixed in the battery core, or the fire and explosion risks cannot occur even if the diaphragm is pierced and internal short circuit is caused.
However, the voltage withstanding battery cell detection machine in the prior art has complicated detection steps of the battery cell, the battery cell needs to be taken out from the battery cell jig for detection, the battery cell needs to be even put into the battery cell jig after detection, and the battery cell test efficiency is low.
Disclosure of Invention
The invention aims to provide a battery cell withstand voltage testing machine so as to solve the technical problems of complicated detection steps and low battery cell detection efficiency of the battery cell withstand voltage testing machine in the prior art.
The invention provides a battery cell withstand voltage testing machine, which comprises a testing device;
the testing device comprises at least one group of first driving device and a clamping device, wherein the clamping device is fixed at the driving end of the first driving device, the first driving device can push the clamping part of the clamping device into the battery cell jig, and the clamping device can drive the clamping part to clamp the inner tab of the battery cell.
Further, the clamping device comprises a second driving device and a clamping part, the clamping part is a clamping hand, the second driving device is fixed at the driving end of the first driving device, the clamping hand is fixed at the driving end of the second driving device, and the second driving device can drive the clamping hand to tighten and loosen.
Further, the second driving device comprises a first clamping jaw cylinder, the clamping hand comprises a test tube and a plurality of test bars, the test bars are respectively fixed on clamping jaws of the first clamping jaw cylinder, the test tube is fixed on the first clamping jaw cylinder, the test bars are sleeved with the test tube, and the first clamping jaw cylinder can drive the test bars to be close to the inner wall of the test tube so as to clamp the inner tab between the test bars and the test tube.
Further, the testing device further comprises a workbench, a testing hole is formed in the workbench, the battery cell jig is placed on the workbench, and the inner tab of the battery cell in the battery cell jig corresponds to the testing hole.
Further, the protrusion of test hole inner wall is equipped with the second ring platform, the internal diameter of second ring platform is greater than or equal to the internal diameter of electric core tool is less than the external diameter of electric core tool, electric core tool inserts and establishes in the test hole and with second ring platform up end butt.
Further, the testing device further comprises a positioning and clamping device, wherein the positioning and clamping device comprises a driving roller, a driven roller, a third driving device and a first mounting seat;
the first mounting seat is fixed on the workbench, the third driving device is mounted on the first mounting seat, the driving roller is vertically mounted on the driving end of the third driving device, the workbench is provided with a roller mounting shaft, and the driven roller is pivoted on the roller mounting shaft.
Further, the positioning and clamping device further comprises a fourth driving device and a second mounting seat;
the driving end of the third driving device is fixedly connected with the second mounting seat, the driving cylinder is pivoted on the second mounting seat, and the fourth driving device is mounted on the second mounting seat and is in driving connection with the driving cylinder.
Further, the testing device further comprises a fifth driving device, a sixth driving device and a testing clamping jaw;
the fifth driving device is arranged on the second mounting seat, the sixth driving device is a second clamping jaw air cylinder, the second clamping jaw air cylinder is fixed at the driving end of the fifth driving device, and two testing clamping jaws are respectively fixed on two clamping jaws of the second clamping jaw air cylinder. The two test clamping jaws can clamp the outer lugs of the battery cell and enable the outer lugs to be electrically connected with a power supply.
Further, the workbench is provided with an avoidance hole, the second mounting seat is inserted into the avoidance hole, and the fourth driving device is fixed on the second mounting seat below the workbench.
Further, the device also comprises a transferring device, wherein the transferring device comprises a supporting frame, a seventh driving device, an eighth driving device, a ninth driving device and a transferring clamping jaw;
the support frame is fixed on the workbench, the seventh driving device is installed on the support frame, the eighth driving device is fixed at the moving end of the seventh driving device, the ninth driving device is a third clamping jaw cylinder, the third clamping jaw cylinder is fixed at the driving end of the eighth driving device, and two transferring clamping jaws are respectively fixed on two clamping jaws of the third clamping jaw cylinder.
Further, the device also comprises a stopping device, wherein the stopping device comprises a third mounting seat, a tenth driving device and a stopping piece;
the tenth drive device is installed on the third installation seat, the stop piece is fixed at the driving end of the tenth drive device, and the tenth drive device can drive the stop piece to move towards the conveying device and stop the battery cell jig.
Compared with the prior art, the battery cell voltage withstand testing machine provided by the invention has the following beneficial effects:
according to the battery cell withstand voltage testing machine provided by the invention, the clamping device for testing can penetrate into the battery cell jig to clamp the inner electrode lug, and the battery cell short circuit test can be completed on the basis that the battery cell is not taken out of the battery cell jig, so that the steps of taking the battery cell out of the battery cell jig and putting the battery cell into the battery cell jig again are omitted, and the battery cell testing efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a battery cell withstand voltage testing machine according to an embodiment of the present invention;
FIG. 2 is a right side view of a testing device in a battery cell voltage withstanding tester according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a cell and a cell fixture;
FIG. 4 is a schematic structural diagram of a stop device in a battery cell withstand voltage testing machine according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a structure of a workbench in a voltage withstanding tester for a battery cell according to an embodiment of the present invention;
fig. 6 is a top view of a test rod, a test cartridge and a second driving device in the voltage withstanding tester for a battery cell according to the embodiment of the present invention.
Icon: 10-a first drive means; 20-an electric core jig; 30-an electric core; 40-a conveyor; 50-a workbench; 60-a second drive; 70-test bar; 80-a test cartridge; 90-driving roller; 100-driven roller; 110-a third drive; 120-fourth driving means; 130-a first mount; 140-a second mount; 150-fifth driving means; 160-sixth driving means; 170-test jaws; 180-sensor; 190-guide rod; 200-linear bearings; 210-a support frame; 220-seventh drive means; 230-eighth drive means; 240-ninth driving means; 250-transferring jaws; 260-a third mount; 270-tenth driving means; 280-baffle; 300-barrier strips; 310-risers; 320-waste bin; 330-fourth mount; 201-a first ring station; 301-outer lugs; 302-inner tab; 501-test wells; 502-avoidance holes; 503-second ring station.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 2 and 6, an embodiment of the invention provides a voltage withstanding tester for a battery cell, which comprises a testing device, wherein the testing device comprises at least one group of first driving devices 10 and clamping devices, the clamping devices are fixed at the driving ends of the first driving devices 10, the first driving devices 10 can push clamping parts of the clamping devices into the battery cell jig 20, and the clamping devices can drive the clamping parts to clamp inner lugs 302 of the battery cell 30.
The battery cell withstand voltage testing machine provided by the invention comprises a testing device, wherein the testing device can be arranged at the side of a conveying device 40, a battery cell jig 20 with a battery cell 30 is vertically arranged on the conveying device 40, as shown in fig. 1, the battery cell 30 is vertically arranged in the battery cell jig 20, at least one tab of the battery cell 30 is hidden in the battery cell jig 20, in the invention, for convenience of description, the tab of the battery cell 30 hidden in the battery cell jig 20 is defined as an inner tab 302, and the tab of the battery cell 30 partially or completely exposed out of the battery cell jig 20 is defined as an outer tab 301. The situation shown in fig. 1 is that the tab at the lower side of the battery cell 30 is located inside the battery cell jig 20, and may be referred to as an inner tab 302 according to the previous definition, and the tab at the upper side of the battery cell 30 is partially or entirely exposed at the upper end of the battery cell jig 20, and may be referred to as an outer tab 301 according to the previous definition.
During testing, the electric core fixture 20 on the conveying device 40 is transferred to the testing device through a worker or a transferring device, the first driving device 10 drives the clamping device to be inserted into the electric core fixture 20, and then the clamping part electrically connected to the power supply on the clamping device can clamp the inner tab 302 so as to complete the electrical connection between the power supply and the inner tab 302; at this time, if the tabs at both ends of the battery cell 30 are the inner tabs 302, the tabs at both ends can be electrically connected to the power supply by the above-mentioned manner/device, and then pressurized to complete the short circuit test of the battery cell 30; for the case that one end tab of the battery cell 30 is the inner tab 302 and the other end tab is the outer tab 301 (the outer tab 301 shown in fig. 3), the testing device disclosed in the foregoing disclosure is used for the inner tab 302, and for the outer tab 301, the testing device disclosed in the foregoing disclosure may be used, and a conventional testing device may also be used, so as to complete the short circuit test of the battery cell 30. After the test is completed, if the test cell 30 is qualified, the worker or the transfer device will transfer the cell fixture 20 to the transfer device 40 again.
By using the testing device disclosed by the invention, the testing steps are simple, the detection of the electrode lug 302 in the battery cell 30 in the battery cell jig 20 is completed through the first driving device 10 and the clamping device, the steps of taking the battery cell 30 out of the battery cell jig 20 and putting the battery cell 30 into the battery cell jig 20 again are omitted, and the testing efficiency of the battery cell 30 is improved.
It should be noted that, the tab at the lower end of the battery cell 30 in the battery cell jig 20 may be a positive tab or a negative tab, which meets the process requirements, and the positive tab or the negative tab does not affect or limit the voltage withstanding tester of the present application. In addition, as shown in fig. 3, the battery cell jig 20 in the embodiment is in a hollow cylindrical shape, the inner wall of the battery cell jig is convexly provided with a first annular table 201, the battery cell 30 is inserted from the upper end of the battery cell jig 20, the battery cell body (the part of the battery cell 30 except for the positive and negative electrode lugs) completely enters the battery cell jig 20 and is abutted against the upper end surface of the first annular table 201, and at the moment, the electrode lugs at the lower end of the battery cell 30 pass through the through holes of the first annular table 201.
In an alternative solution of this embodiment, the clamping device includes a second driving device 60 and a clamping portion, where the clamping portion is set as a clamping hand, the second driving device 60 is fixed at the driving end of the first driving device 10, the clamping hand is fixed at the driving end of the second driving device 60, and the second driving device 60 can drive tightening and loosening of the clamping hand.
Specifically, the first driving device 10 is an air cylinder, the first driving device 10 pushes the clamping hand on the second driving device 60 into the cell fixture 20, and then the clamping hand is tightened or loosened to clamp the inner tab 302 under the driving of the second driving device 60.
Preferably, as shown in fig. 2 and 6, in the present embodiment, the second driving device 60 includes a first jaw cylinder, and in the following description, a four-jaw cylinder will be used as an example, the clamping hand includes four test bars 70 and test cylinders 80 matched with the test bars 70, the four test bars 70 are respectively fixed on four jaws of the four-jaw cylinder, one end of the test cylinder 80 is fixed to the cylinder, and the test cylinders 80 are sleeved with the four test bars 70. After the test rod 70 and the test tube 80 are inserted into the cell jig 20, the inner tab 302 is located between the test tube 80 and the test rod 70, and under the driving of the four-claw air cylinder, the four test rods 70 can be expanded outwards to gradually reduce the gap between the test rod 70 and the test tube 80, and finally the clamping of the test rod 70 and the test tube 80 to the inner tab 302 is completed.
Further, the structure of the battery cell withstand voltage testing machine will be further described by taking the example that the first driving device 10 and the clamping device are provided with a group, and the battery cell 30 further includes the outer tab 301 exposed from the battery cell jig 20. At this time, the lower end of the cell 30 is an inner tab 302, and the upper end is an outer tab 301.
First, in this embodiment, the testing device further includes a workbench 50, a testing hole 501 is provided on the workbench 50, the battery cell jig 20 is vertically placed on the workbench 50, and the inner tab 302 in the battery cell jig 20 corresponds to the testing hole 501.
Specifically, the test hole 501 is a through hole, preferably, the diameter of the test hole 501 is smaller than the outer diameter of the battery cell jig 20 and is larger than or equal to the inner diameter of the battery cell jig 20, so that the battery cell jig 20 is not dropped from the test hole 501, and the clamping device is not prevented from clamping the inner tab 302, preferably, during testing, the battery cell jig 20 and the test hole 501 are concentrically arranged; a fourth mounting seat 330 is extended below the working table 50, the first driving device 10 is mounted on the fourth mounting seat 330, and the test rod 70 and the test tube 80 move upwards and pass through the test hole 501 under the driving of the first driving device 10, and then are inserted into the cell jig 20.
Preferably, as shown in fig. 5, in this embodiment, a second ring table 503 is protruding from the inner wall of the test hole 501 (directly setting the test hole 501 as a step hole is also a specific implementation manner of "protruding from the inner wall of the test hole 501 to be provided with the second ring table 503"), where the inner diameter of the second ring table 503 is greater than or equal to the inner diameter of the battery cell jig 20, less than the outer diameter of the battery cell jig 20, and the battery cell jig 20 is inserted into the test hole 501 and abuts against the upper end surface of the second ring table 503.
The battery cell jig 20 is partially inserted into the test hole 501 at this time, so that the relative positional relationship between the battery cell jig 20 and the workbench 50 is ensured, and in addition, the dimensions of the second ring table 503 ensure that the test rod 70 and the test cartridge 80 are not interfered by the second ring table 503 when being inserted into the battery cell jig 20.
Further, as shown in fig. 1 and 2, in the present embodiment, the testing device further includes a positioning and clamping device, where the positioning and clamping device includes a driving roller 90, a driven roller 100, a third driving device 110, and a first mounting seat 130; the first mounting seat 130 is fixed on the workbench 50, the third driving device 110 is mounted on the first mounting seat 130, the driving cylinder 90 is vertically mounted on the driving end of the third driving device 110, the workbench 50 is provided with a cylinder mounting shaft, and the driven cylinder 100 is pivoted on the cylinder mounting shaft.
Specifically, the first mounting seat 130 is a vertically arranged mounting plate, the third driving device 110 is an air cylinder, the test hole 501 is located between the driving roller 90 and the driven roller 100, the driven roller 100 has two groups, when the battery cell jig 20 is placed in the test hole 501, the battery cell jig 20 is abutted to the two groups of driven rollers 100, and under the driving of the third driving device 110, the driving roller 90 is close to the driven roller 100 and clamps the battery cell jig 20 located between the driven roller 100 and the driving roller 90, so that the clamping and fixing of the battery cell jig 20 are completed.
It should be noted that, in this embodiment, after the clamping and fixing of the battery cell fixture 20 are completed, the battery cell fixture 20 needs to be rotated automatically to adjust the tab of the internal battery cell 30 to a specified position. At this time, a driving component may be separately provided to directly drive the battery cell fixture 20 to rotate, or a driving device may be provided to drive the driving roller 90 to rotate, so as to drive the battery cell fixture 20 to rotate.
Further, as shown in fig. 2, in the present embodiment, the positioning and clamping device further includes a fourth driving device 120 and a second mounting seat 140; the second mounting seat 140 is fixedly connected with the driving end of the third driving device 110, the driving cylinder 90 is pivoted on the second mounting seat 140, and the fourth driving device 120 is mounted on the second mounting seat 140 and is in driving connection with the driving cylinder 90.
Specifically, the second mounting seat 140 is also a vertically arranged mounting plate, the first mounting seat 130 and the second mounting seat 140 are mutually parallel, the fourth driving device 120 is a motor, the fourth driving device 120 is in driving connection with the driving roller 90 through a bevel gear set, and under the driving of the fourth driving device 120, the driving roller 90 rotates and drives the self-rotation of the battery cell jig 20, so that the inner tab 302 and the outer tab 301 of the battery cell 30 in the battery cell jig 20 can be rotated to the designated positions.
In this embodiment, the positioning and clamping device further includes a sensor 180 for detecting the position of the outer tab 301, where the sensor 180 is fixed on the second mounting seat 140, and the sensor 180 is preferably an optical fiber sensor.
Specifically, when the sensor 180 detects that the outer tab 301 rotates to a specified position, a signal is given to the controller, and the controller receives the signal and then controls the fourth driving device 120 to stop rotating. When the outer tab 301 does not reach the designated position after the cell fixture 20 rotates for one turn or for a designated time (the sensor 180 does not detect the outer tab 301 yet), which represents that the cell 30 is not qualified, the sensor 180 also gives a signal to the controller, the controller controls the fourth driving device 120 to stop rotating, the third driving device 110 drives the driving roller 90 away, and the operator or the transferring device moves the cell fixture 20 out of the test hole 501.
Further, as shown in fig. 1 and 2, in this embodiment, the testing device further includes a fifth driving device 150, a sixth driving device 160, and a testing jaw 170; the fifth driving device 150 is mounted on the second mounting seat 140, the sixth driving device 160 is a second clamping jaw cylinder, the second clamping jaw cylinder is fixed at the driving end of the fifth driving device 150, and the two test clamping jaws 170 are respectively fixed on the two clamping jaws of the second clamping jaw cylinder.
Specifically, the fifth driving device 150 is an air cylinder, and when the outer tab 301 of the battery cell 30 rotates to a designated position, the fifth driving device 150 drives the test clamping jaw 170 to move downward to be close to the battery cell jig 20, and clamps the outer tab 301 under the driving of the second clamping jaw air cylinder.
It should be noted that in this embodiment, the test jaw 170 and the test cartridge 80 are each made of a conductive material, such as metal, and are each electrically connected to a power source of the test circuit. After the test clamping jaw 170 and the test barrel 80 are respectively electrically connected with the outer tab 301 and the inner tab 302 of the battery cell 30, a certain voltage is given to the battery cell 30 by a power supply in the test circuit, and whether the battery cell 30 is qualified can be determined according to parameters displayed on a detection device in the test circuit.
As shown in fig. 2, in this embodiment, at least two guide rods 190 are horizontally fixed on one side of the second mounting seat 140 facing the first mounting seat 130, the first mounting seat 130 is correspondingly provided with a plurality of through holes, the guide rods 190 are inserted into the through holes, the workbench 50 is provided with an avoidance hole 502, the second mounting seat 140 is inserted into the avoidance hole 502, and the fourth driving device 120 is fixed on the second mounting seat 140 below the workbench 50.
Preferably, a linear bearing 200 may be fixedly disposed in the through hole of the first mounting seat 130, and the guide rod 190 is inserted into the linear bearing 200.
Further, as shown in fig. 1, the battery cell withstand voltage testing machine of the present embodiment further includes a transferring device, where the transferring device includes a supporting frame 210, a seventh driving device 220, an eighth driving device 230, a ninth driving device 240, and a transferring clamping jaw 250; the support frame 210 is fixed on the table 50, the seventh driving device 220 is an electric cylinder, the seventh driving device 220 is horizontally installed on the support frame 210, the eighth driving device 230 is fixed on the moving end of the seventh driving device 220, the ninth driving device 240 is a third jaw cylinder (the "second" of the third jaw cylinders herein is for distinguishing from the "second jaw cylinder" (the sixth driving device 160) appearing in the foregoing), the third jaw cylinder is fixed on the driving end of the eighth driving device 230, and the transfer jaws 250 are two and are respectively fixed on the two jaws of the third jaw cylinder.
Specifically, the eighth driving device 230 is an air cylinder, under the driving of the seventh driving device 220, the eighth driving device 230 can horizontally move to a position right above the conveying device 40 and the test hole 501 above the workbench 50, under the driving of the eighth driving device 230, the third clamping jaw air cylinder can be close to the cell jig 20 at the conveying device 40 or the test hole 501, and under the driving of the third clamping jaw air cylinder, the transferring clamping jaw 250 can complete clamping and releasing of the cell jig 20 at the conveying device 40 or the test hole 501.
Further, as shown in fig. 1, the battery cell voltage withstanding tester of the present embodiment further includes a waste box 320, the waste box 320 is disposed on the workbench 50, and the transferring device can transfer the battery cell jig 20 at the positioning and clamping device into the waste box 320.
Specifically, the waste box 320 and the conveying device 40 are separately arranged at two sides of the test hole 501, and the transferring clamping jaw 250 can transfer the unqualified battery cell 30 into the waste box 320 under the driving of the seventh driving device 220; in addition, in the direction in which the seventh driving device 220 moves, at least two waste cartridges 320 are disposed in the present embodiment, one of which is used for accommodating the battery cells 30 with unqualified outer tabs 301, and the other of which is used for accommodating the battery cells 30 with unqualified detection devices.
Further, as shown in fig. 4, in this embodiment, the conveying device 40 may be a continuously walking conveying belt driven by a speed-adjusting motor, or may be a stepping motor driving the conveying belt to intermittently advance, and when the conveying belt continuously walks, the battery cell voltage withstand tester further includes a stopping device, where the stopping device includes a third mounting seat 260, a tenth driving device 270, and a stopping member; the tenth driving device 270 is mounted on the third mounting seat 260, and the stopping member is fixed at the driving end of the tenth driving device 270, and the tenth driving device 270 can drive the stopping member to move towards the conveying device 40 and stop the power core failure jig 20.
Specifically, the third mounting seat 260 is a mounting plate, the tenth driving device 270 is an air cylinder, the stop member may be a U-shaped bracket, the groove width of the U-shaped bracket is larger than the diameter of the battery cell jig 20, and under the driving of the tenth driving device 270, the U-shaped bracket can approach the conveyor belt along the width direction of the conveyor belt, and the battery cell jig 20 is clamped in the U-shaped groove of the U-shaped bracket.
Preferably, in the present embodiment, the stopping member includes two baffles 280, and the baffles 280 on the tenth driving device 270 are parallel to each other; the tenth two driving devices 270 can drive the two baffles 280 to move toward the conveyor 40 and sandwich the cell fixture 20 between the two baffles 280.
Specifically, as shown in fig. 1, the traveling direction of the tenth driving device 270 for driving the baffle plates 280 is the width direction of the conveyor belt in the conveyor 40, the mounting plate is provided with a vertical plate 310, the two baffle plates 280 are slidably connected with two sides of the vertical plate 310 through sliding blocks, the distance between the two baffle plates 280 is slightly larger than the diameter of the battery cell jig 20, which prevents the battery cell jig 20 from falling down in the length direction of the conveyor belt while preventing the battery cell jig 20 from continuing to convey forward along with the conveyor belt (two sides of the conveyor 40 can be provided with barrier strips 300 for preventing the battery cell jig 20 from falling down in the width direction of the conveyor belt); at this time, one baffle 280 may be first set to extend to prevent the battery cell jig 20, and then the other baffle 280 may be set to extend to prevent the battery cell jig 20 from tilting; alternatively, both baffles 280 may extend simultaneously.
Note that in this embodiment, except for the second jaw cylinder, the third jaw cylinder, and the four-jaw cylinder, the remaining cylinders are all conventional cylinders capable of achieving linear reciprocating movement.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (8)
1. The battery cell withstand voltage testing machine is characterized by comprising a testing device;
the testing device comprises at least one group of first driving device and a clamping device, wherein the clamping device is fixed at the driving end of the first driving device, the first driving device can push the clamping part of the clamping device into the battery cell jig, and the clamping device can drive the clamping part to clamp the inner tab of the battery cell;
the testing device further comprises a workbench and a positioning and clamping device, wherein the battery cell jig is placed on the workbench, and the positioning and clamping device is arranged on the workbench; the positioning and clamping device can clamp and fix the battery cell jig and enable the battery cell jig to rotate so as to enable the lug of the battery cell to be adjusted to a designated position;
the workbench is provided with a test hole, and an inner tab of an inner battery cell of the battery cell jig corresponds to the test hole;
the test hole inner wall protrusion is equipped with the second ring platform, the internal diameter of second ring platform is greater than or equal to the internal diameter of electric core tool is less than the external diameter of electric core tool, electric core tool inserts and establishes in the test hole and with second ring platform up end butt.
2. The battery cell withstand voltage testing machine according to claim 1, wherein the clamping device comprises a second driving device and the clamping part, the clamping part is a clamping hand, the second driving device is fixed at the driving end of the first driving device, the clamping hand is fixed at the driving end of the second driving device, and the second driving device can drive the clamping hand to tighten and loosen;
the second driving device comprises a first clamping jaw cylinder, the clamping hand comprises a test tube and a plurality of test bars, the test bars are respectively fixed on clamping jaws of the first clamping jaw cylinder, the test tube is fixed on the first clamping jaw cylinder, the test bars are sleeved with the test tube, and the first clamping jaw cylinder can drive the test bars to be close to the inner wall of the test tube so as to clamp the inner lugs between the test bars and the test tube.
3. The cell withstand voltage testing machine according to claim 1, wherein the positioning and clamping device comprises a driving roller, a driven roller, a third driving device and a first mounting seat;
the first mounting seat is fixed on the workbench, the third driving device is mounted on the first mounting seat, the driving roller is vertically mounted on the driving end of the third driving device, the workbench is provided with a roller mounting shaft, and the driven roller is pivoted on the roller mounting shaft.
4. The battery cell withstand voltage testing machine according to claim 3, wherein the positioning and clamping device further comprises a fourth driving device and a second mounting seat;
the driving end of the third driving device is fixedly connected with the second mounting seat, the driving cylinder is pivoted on the second mounting seat, and the fourth driving device is mounted on the second mounting seat and is in driving connection with the driving cylinder.
5. The cell withstand voltage testing machine according to claim 4, wherein the testing device further comprises a fifth driving device, a sixth driving device and a testing jaw;
the fifth driving device is arranged on the second mounting seat, the sixth driving device is a second clamping jaw air cylinder, the second clamping jaw air cylinder is fixed at the driving end of the fifth driving device, and two testing clamping jaws are respectively fixed on two clamping jaws of the second clamping jaw air cylinder.
6. The battery cell withstand voltage testing machine according to claim 4, wherein the workbench is provided with an avoidance hole, the second mounting seat is inserted into the avoidance hole, and the fourth driving device is fixed on the second mounting seat below the workbench.
7. The cell withstand voltage testing machine according to claim 1, further comprising a transfer device including a support frame, a seventh driving device, an eighth driving device, a ninth driving device, and a transfer jaw;
the support frame is fixed on the workbench, the seventh driving device is installed on the support frame, the eighth driving device is fixed at the moving end of the seventh driving device, the ninth driving device is a third clamping jaw cylinder, the third clamping jaw cylinder is fixed at the driving end of the eighth driving device, and two transferring clamping jaws are respectively fixed on two clamping jaws of the third clamping jaw cylinder.
8. The battery cell withstand voltage testing machine according to claim 1 or 2, further comprising a stopping device comprising a third mounting seat, a tenth driving device and a stopping member;
the tenth drive device is installed on the third installation seat, the stop piece is fixed at the driving end of the tenth drive device, and the tenth drive device can drive the stop piece to move towards the conveying device and stop the battery cell jig.
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| CN201811472060.8A CN109378495B (en) | 2018-12-03 | 2018-12-03 | Withstand voltage tester for battery cell |
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| CN201811472060.8A CN109378495B (en) | 2018-12-03 | 2018-12-03 | Withstand voltage tester for battery cell |
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| CN109378495B true CN109378495B (en) | 2024-04-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110133427B (en) * | 2019-06-19 | 2022-07-08 | 常德烟草机械有限责任公司 | Lithium cell electricity core short circuit detection device |
| CN114371314B (en) * | 2021-12-23 | 2022-09-30 | 苏州玻色智能科技有限公司 | Electricity core product test equipment |
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