A battery cell film tearing and positive pressure leak detection device

Abstract

The present invention provides a battery cell film tearing and positive pressure leak detection device, comprising a frame and a feeding mechanism, a feeding manipulator, a film tearing mechanism and a leak detection mechanism fixed on the frame. The feeding mechanism is provided in two groups and corresponds to the left and right sides of the feeding manipulator, the film tearing mechanism is provided in two groups and corresponds to the rear sides of the two groups of feeding mechanisms respectively, and the leak detection mechanism corresponds to the rear sides of the two groups of film tearing mechanisms. The device has the advantages that when the protective film is released, the protective film will not adhere to the third clamping jaw assembly, thereby ensuring the stable operation of the film tearing mechanism. Moreover, the film tearing step of the design is simple, and there is no need to consume the tape for sticking the protective film. The film tearing efficiency is high and the cost is saved. The battery cell with the film tearing completed is directly transported to the leak detection mechanism for detection, thereby avoiding manual transportation. The device not only has a high degree of automation and high production efficiency, but also can improve the yield rate.

Description

Technical Field

[0001] The invention relates to the field of battery cell automated manufacturing equipment, and in particular to a battery cell film tearing and positive pressure leak detection equipment. Background Art

[0002] In the lithium battery production process, in order to avoid scratching the lithium battery, a protective film is usually affixed to the surface of the lithium battery. After production is completed, the protective film is torn off to detect leakage of the finished product.

[0003] Existing film tearing equipment usually clamps the lithium battery with a clamp, sticks tape on both sides of the lithium battery, and then uses the clamp to clamp the tape to tear off the protective film. During the film tearing process, first tear off half of the protective film, and then use another clamp to clamp the end of the lithium battery where the film has been torn, and pull the lithium battery out to complete the film tearing. This film tearing machine has the following defects: 1. There are too many film tearing processes, resulting in low efficiency; 2. When discarding waste film, the tape and protective film are easy to stick to the film tearing machine, affecting the cleanliness of the machine and causing the film tearing machine to be unable to operate normally and stably. On the other hand, the battery cell after film tearing needs to be transported to the leak detection equipment for leakage detection, which has a low degree of automation and low efficiency. Therefore, it is necessary to produce a battery cell film tearing and positive pressure leak detection equipment to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a battery cell film tearing and positive pressure leak detection device to solve the problems mentioned in the background technology.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A battery cell film tearing and positive pressure leak detection device, comprising a frame and a feeding mechanism, a feeding manipulator, a film tearing mechanism and a leak detection mechanism fixed on the frame, wherein two groups of feeding mechanisms are provided and correspond to the left and right sides of the feeding manipulator, two groups of film tearing mechanisms are provided and correspond to the rear sides of the two groups of feeding mechanisms respectively, and the leak detection mechanism corresponds to the rear sides of the two groups of film tearing mechanisms;

[0007] The film tearing mechanism includes a fixed platform, a first blowing component, a first handling robot, a first driving device, a second driving device, a third driving device, a first clamping jaw assembly, a second clamping jaw assembly and a third clamping jaw assembly. The fixed platform includes a first mounting bracket and an adsorption platform. Two groups of adsorption platforms are arranged and fixed on the front and rear sides above the first mounting bracket. The first blowing component is fixed to the front end of the first mounting bracket. The first handling robot is mounted above the two groups of adsorption platforms. The first driving device is fixedly arranged on the right side of the fixed platform. The first clamping jaw assembly is fixed to the power output end of the first driving device. The first driving device drives the first clamping jaw assembly to run in the X-axis and Y-axis directions. The second driving device is fixedly arranged on the left side of the fixed platform. The second clamping jaw assembly is fixed to the power output end of the second driving device. The second driving device drives the second clamping jaw assembly to run in the Y-axis direction. The third driving device is fixedly arranged in front of the second driving device. The third clamping jaw assembly is fixed to the power output end of the third driving device. The third driving device drives the third clamping jaw assembly to run in the Z-axis direction.

[0008] Further description of the present invention: the first driving device includes an X-axis driving component, a first Y-axis driving component, a movable bracket and an adjusting bracket, the first clamping jaw assembly includes a first clamping cylinder, a fixed clamping plate and a first clamping plate, the X-axis driving component is fixedly arranged on the right side of the fixed platform, the first Y-axis driving component is fixed to the power output end of the X-axis driving component, the movable bracket is fixed to the power output end of the first Y-axis driving component, the adjusting bracket is fixed to the movable bracket and the position can be adjusted along the Z-axis direction, the first clamping cylinder is fixed to the adjusting bracket, the fixed clamping plate is fixed to the left side of the first clamping cylinder and corresponds to the top of the adsorption platform, and the first clamping plate is fixed to the power output end of the first clamping cylinder and corresponds to the front side of the fixed clamping plate.

[0009] Further description of the present invention: the second driving device includes a first X-axis adjustment base, a second mounting bracket, a second Y-axis driving component and a first connecting bracket, the second clamping jaw assembly includes a second clamping cylinder and a second clamping plate, the first X-axis adjustment base is fixedly arranged on the left side of the fixed platform, the lower end of the second mounting bracket is fixed to the first X-axis adjustment base and the position can be adjusted along the X-axis direction, the second Y-axis driving component is fixed to the upper end of the second mounting bracket, the first connecting bracket is fixed to the power output end of the second Y-axis driving component, the second clamping cylinder is fixed on the first connecting bracket and the power output end faces to the right, and the second clamping plate is provided in two groups and is fixed to the power output end of the second clamping cylinder.

[0010] Further description of the present invention: the third driving device includes a second X-axis adjustment base, a third mounting bracket, a Z-axis driving component and a second connecting bracket, the third clamping jaw assembly includes a third clamping cylinder, a third clamping plate and a second blowing assembly, the second X-axis adjustment base is fixedly arranged on the front side of the second driving device, the lower end of the third mounting bracket is fixed on the second X-axis adjustment base and the position can be adjusted along the X-axis direction, the Z-axis driving component is fixed on the third mounting bracket, the second connecting bracket is fixed to the power output end of the Z-axis driving component, the third clamping cylinder is fixed on the second connecting bracket and the power output end faces the rear side, the third clamping plate is provided in two groups and is fixed to the power output end of the third clamping cylinder, and the second blowing assembly is fixed on the second connecting bracket and the blowing end faces the rear side.

[0011] Further description of the present invention: the film tearing mechanism also includes a waste baffle fixed on the frame, and the waste baffle is arranged in three groups and corresponds to the left side, right side and rear side of the third clamping jaw assembly respectively.

[0012] Further description of the present invention: The leakage detection mechanism includes a leakage detection device, a transfer platform, a second handling robot, a unloading robot and a defective product unloading device, the leakage detection device includes a base, a Y-axis slide, a first bracket, a second bracket, a first Z-axis drive assembly, a second Z-axis drive assembly, a first upper mold, a second upper mold, a first Y-axis drive assembly, a second Y-axis drive assembly, a first lower mold and a second lower mold, the Y-axis slide is fixed above the base, the first bracket is mounted above the left end of the base, the first Z-axis drive assembly is fixed on the first bracket, the upper end of the first upper mold is fixed to the power output end of the first Z-axis drive assembly, the first Y-axis drive assembly is fixed to the base, the first lower mold is fixed to the power output end of the first Y-axis drive assembly and the lower end is connected to the Y-axis slide The first Y-axis driving assembly drives the first lower mold to run between the left end and the middle part of the base, the second bracket is mounted above the right end of the base, the second Z-axis driving assembly is fixed on the second bracket, the upper end of the second upper mold is fixed to the power output end of the second Z-axis driving assembly, the second Y-axis driving assembly is fixed on the base, the second lower mold is fixed to the power output end of the second Y-axis driving assembly and the lower end is slidably connected to the Y-axis slide, the second Y-axis driving assembly drives the second lower mold to run between the right end and the middle part of the base, the transfer platform is fixedly arranged on the front side of the leakage detection device, the defective product unloading device is fixedly arranged on the side of the transfer platform, the second handling robot is fixedly arranged between the transfer platform and the defective product unloading device, and the unloading robot is mounted above the middle part of the base.

[0013] Further description of the present invention: An adsorption component is arranged on the upper end of the transfer platform.

[0014] Further description of the present invention: The unloading robot includes a third bracket, an X-axis drive assembly, a fourth bracket, a first Z-axis cylinder, a second Z-axis cylinder, a rotating cylinder, a first adsorption material claw and a second adsorption material claw. The third bracket is fixed on the base, the X-axis drive assembly is fixed to the upper end of the third bracket, the fourth bracket is fixed to the power output end of the X-axis drive assembly, the first Z-axis cylinder and the second Z-axis cylinder are respectively fixed to the front and rear ends of the fourth bracket, the first adsorption material claw is fixed to the power output end of the first Z-axis cylinder, the rotating cylinder is fixed to the power output end of the second Z-axis cylinder, and the second adsorption material claw is fixed to the power output end of the rotating cylinder.

[0015] Further description of the present invention: The first adsorption claws and the second adsorption claws are each provided in three groups.

[0016] The beneficial effects of the present invention are as follows: when the protective film on the battery cell is to be torn off, the battery cell is placed on a fixed platform, the first blowing assembly blows the protective film at the front end of the battery cell upwards to make the end of the protective film tilted, the first clamping claw assembly clamps the tilted position of the protective film and under the drive of the first driving device, tears the protective film backward from the upper end surface of the battery cell, then the second clamping claw assembly clamps the middle of the protective film, the first handling robot absorbs the upper end surface of the battery cell and makes the battery cell rise, the lower end surface of the battery cell is separated from the protective film, so that the protective film is completely torn off from the battery cell, and the torn protective film is transferred to the battery cell under the drive of the first driving device and the second driving device. To the rear end of the third clamping jaw assembly, the protective film is clamped by the third clamping jaw assembly and, driven by the third driving device, runs downward and releases the protective film for collection. Since the third clamping jaw assembly clamps the non-sticky surface of the protective film, the protective film will not adhere to the third clamping jaw assembly when releasing the protective film, thereby ensuring the stable operation of the film tearing mechanism. In addition, the film tearing steps of the design are simple, and there is no need to waste tape for sticking the protective film. The film tearing efficiency is high and the cost is saved. The battery cells with film tearing are directly transported to the leakage detection mechanism for testing to avoid manual transportation. Not only is the degree of automation high and the production efficiency high, but also the yield rate can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the overall structural diagram of the present invention;

[0018] Figure 2 It is the overall structural diagram of the film tearing mechanism in the present invention;

[0019] Figure 3 The film tearing mechanism of the present invention is Figure 2 The overall structure diagram from the perspective of middle A;

[0020] Figure 4 yes Figure 2 A partial enlarged view of position B in the middle;

[0021] Figure 5 yes Figure 3 A partial enlarged view of the C position in the middle;

[0022] Figure 6 is a structural diagram of the second driving device and the second clamping jaw assembly of the present invention;

[0023] Figure 7 It is the overall structural diagram of the leakage detection mechanism in the present invention;

[0024] Figure 8 1 is the overall structural diagram of the leakage detection mechanism in the present invention (the second handling robot and the defective product unloading device are not shown);

[0025] Fig. 9 yes Figure 8 A partial enlarged view of the D position in the middle;

[0026] Description of reference numerals:

[0027] 1. Frame; 2. Loading mechanism; 3. Loading manipulator; 4. Film tearing mechanism; 41. Fixed platform;

[0028] 411, first mounting bracket; 412, adsorption stage; 42, first blowing assembly; 43, first handling manipulator; 44, first driving device; 441, X-axis driving component; 442, first Y-axis driving component; 443, movable bracket; 444, adjustment bracket; 45, second driving device; 451, first X-axis adjustment base; 452, second mounting bracket; 453, second Y-axis driving component; 454, first connecting bracket; 46, third driving device; 461, second X-axis adjustment base; 462, third mounting bracket; 463, Z-axis driving component; 464, second connecting bracket; 47, first clamping jaw assembly; 471, first clamping cylinder; 472, fixed clamping plate; 473, first clamping plate; 48, second clamping jaw assembly; 481, second clamping cylinder; 482, second clamping plate; 49, third clamping jaw assembly; 491, third clamping cylinder;

[0029] 492, third clamping plate; 493, second blowing assembly; 410, waste baffle; 5, leak detection mechanism; 51, leak detection device; 5101, base; 5102, Y-axis slide; 5103, first bracket; 5104, second bracket; 5105, first Z-axis drive assembly; 5106, second Z-axis drive assembly; 5107, first upper mold; 5108, second upper mold; 5109, first Y-axis drive assembly; 5110, The second Y-axis drive assembly; 5111, the first lower mold; 5112, the second lower mold; 52, the transfer platform; 53, the second handling robot; 54, the unloading robot; 541, the third bracket; 542, the X-axis drive assembly; 543, the fourth bracket; 544, the first Z-axis cylinder; 545, the second Z-axis cylinder; 546, the rotating cylinder; 547, the first suction claw; 548, the second suction claw; 55, the defective product unloading device. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings:

[0031] like Figure 1 As shown, a battery cell film tearing and positive pressure leak detection equipment includes a frame 1 and a feeding mechanism 2, a feeding robot 3, a film tearing mechanism 4 and a leak detection mechanism 5 fixed on the frame 1, the feeding mechanism 2 is provided in two groups and corresponds to the left and right sides of the feeding robot 3, the film tearing mechanism 4 is provided in two groups and corresponds to the rear sides of the two groups of feeding mechanisms 2 respectively, and the leak detection mechanism 5 corresponds to the rear sides of the two groups of film tearing mechanisms 4.

[0032] The battery cells are placed on the feeding mechanism 2, and are scanned, positioned and transported on the feeding mechanism 2 to the side close to the feeding robot 3. The feeding robot 3 transports the battery cells from the feeding mechanism 2 to the film tearing mechanism 4. After the protective film of the battery cells is torn off on the film tearing mechanism 4, the leakage detection mechanism 5 will perform leakage detection on the battery cells with the film torn off. The feeding mechanism 2 and the film tearing mechanism 4 are both provided with two groups, which can improve the efficiency of battery cell loading and film tearing.

[0033] like Figures 2 to 6As shown, the film tearing mechanism 4 includes a fixed platform 41, a first blowing assembly 42, a first handling robot 43, a first driving device 44, a second driving device 45, a third driving device 46, a first clamping jaw assembly 47, a second clamping jaw assembly 48 and a third clamping jaw assembly 49. The fixed platform 41 includes a first mounting bracket 411 and an adsorption carrier 412. The adsorption carrier 412 is provided in two groups and is fixed on the front and rear sides above the first mounting bracket 411. The first blowing assembly 42 is fixed on the front end of the first mounting bracket 411. The first handling robot 43 is mounted above the two groups of adsorption carriers 412. The first driving device 44 is fixedly arranged on the fixed platform On the right side of the platform 41, the first clamping jaw assembly 47 is fixed to the power output end of the first driving device 44, and the first driving device 44 drives the first clamping jaw assembly 47 to run in the X-axis and Y-axis directions. The second driving device 45 is fixedly arranged on the left side of the fixed platform 41, and the second clamping jaw assembly 48 is fixed to the power output end of the second driving device 45, and the second driving device 45 drives the second clamping jaw assembly 48 to run in the Y-axis direction. The third driving device 46 is fixedly arranged in front of the second driving device 45, and the third clamping jaw assembly 49 is fixed to the power output end of the third driving device 46, and the third driving device 46 drives the third clamping jaw assembly 49 to run in the Z-axis direction.

[0034] When tearing off the protective film on the battery cell, the battery cell is placed on the adsorption carrier 412 at the front end of the fixed platform 41. The protective film is U-shaped, covering the upper end face, rear end face and lower end face of the battery cell respectively, and the front end of the protective film slightly protrudes from the front end of the battery cell. Therefore, the first blowing component 42 blows air obliquely upward on the protective film on the upper end face of the battery cell, which can blow the protective film at the front end of the battery cell upward, so that the end of the protective film is tilted, and the first clamping jaw component 47 clamps the tilted position of the protective film and under the drive of the first driving device 44, the protective film is torn off from the upper end face of the battery cell backward. At this time, the original tilted position of the protective film becomes the rear end of the protective film, and the front end of the protective film is still bonded to the lower end face of the battery cell. Then the second clamping jaw component 48 clamps the middle part of the protective film, and the first handling robot 43 adsorbs the upper end face of the battery cell and raises the battery cell, and the lower end face of the battery cell is separated from the front end of the protective film, so that the protective film is completely torn off from the battery cell. The protective film is moved to the rear end of the third clamping jaw assembly 49 under the drive of the first driving device 44 and the second driving device 45. Since the protective film tends to restore its original U-shaped shape after it is completely separated from the battery cell, the front end of the protective film will be folded backward and correspond to the upper rear end of the protective film. The protective film is clamped by the third clamping jaw assembly 49. At this time, the third clamping jaw assembly 49 clamps the outer side surface of the protective film, which is the non-sticky surface. After the first clamping jaw assembly 47 and the second clamping jaw assembly 48 are reset, the third clamping jaw assembly 49 runs downward and releases the protective film for collection under the drive of the third driving device 46. Since the third clamping jaw assembly 49 clamps the non-sticky surface of the protective film, when the protective film is released, the protective film will not adhere to the third clamping jaw assembly 49, ensuring the stable operation of the film tearing mechanism 4. In addition, the film tearing steps of this design are simple, and there is no need to consume tape for sticking the protective film. The film tearing efficiency is high and cost is saved.

[0035] The first driving device 44 includes an X-axis driving component 441, a first Y-axis driving component 442, a movable bracket 443 and an adjusting bracket 444, the first clamping jaw assembly 47 includes a first clamping cylinder 471, a fixed clamping plate 472 and a first clamping plate 473, the X-axis driving component 441 is fixedly arranged on the right side of the fixed platform 41, the first Y-axis driving component 442 is fixed at the power output end of the X-axis driving component 441, the movable bracket 443 is fixed at the power output end of the first Y-axis driving component 442, the adjusting bracket 444 is fixed on the movable bracket 443 and its position can be adjusted along the Z-axis direction, the first clamping cylinder 471 is fixed on the adjusting bracket 444, the fixed clamping plate 472 is fixed on the left side of the first clamping cylinder 471 and corresponds to the top of the adsorption platform 412, and the first clamping plate 473 is fixed at the power output end of the first clamping cylinder 471 and corresponds to the front side of the fixed clamping plate 472.

[0036] Before the first blowing component 42 blows, under the joint drive of the X-axis driving component 441 and the first Y-axis driving component 442, the fixed clamp 472 moves to the corresponding upper front end of the battery cell. After the first blowing component 42 blows, the end of the protective film rises and contacts the fixed clamp 472. At this time, the first clamping cylinder 471 drives the first clamp 473 to move toward the side of the fixed clamp 472 to clamp the end of the protective film, and then drives the first clamping jaw assembly 47 to move backward through the X-axis driving component 441 to tear off the protective film from the upper end surface of the battery cell. The position of the adjusting bracket 444 on the movable bracket 443 can be adjusted to adapt to battery cells of different thickness specifications.

[0037] The second driving device 45 includes a first X-axis adjustment base 451, a second mounting bracket 452, a second Y-axis driving component 453 and a first connecting bracket 454. The second clamping jaw assembly 48 includes a second clamping cylinder 481 and a second clamping plate 482. The first X-axis adjustment base 451 is fixedly arranged on the left side of the fixed platform 41. The lower end of the second mounting bracket 452 is fixed on the first X-axis adjustment base 451 and the position can be adjusted along the X-axis direction. The second Y-axis driving component 453 is fixed to the upper end of the second mounting bracket 452. The first connecting bracket 454 is fixed to the power output end of the second Y-axis driving component 453. The second clamping cylinder 481 is fixed on the first connecting bracket 454 and the power output end faces to the right. The second clamping plate 482 is provided in two groups and is fixed to the power output end of the second clamping cylinder 481.

[0038] After the protective film is torn off from the upper end surface of the battery cell, the second Y-axis drive component 453 drives the second clamping jaw assembly 48 to move toward the protective film, and the second clamping cylinder 481 drives the second clamping plate 482 to clamp the middle part of the protective film to fix the middle position of the protective film. At this time, the upper end surface of the battery cell is adsorbed and grabbed upward by the first handling robot 43, and the lower end surface of the battery cell is separated from the protective film. The first handling robot 43 transports the battery cell to the rear end adsorption platform 412 so that it can be provided for use in subsequent processes. The front and rear positions of the second mounting bracket 452 on the first X-axis adjustment base 451 can be adjusted to accommodate battery cells of different length specifications.

[0039] The third driving device 46 includes a second X-axis adjustment base 461, a third mounting bracket 462, a Z-axis driving component 463 and a second connecting bracket 464. The third clamping jaw assembly 49 includes a third clamping cylinder 491, a third clamping plate 492 and a second blowing assembly 493. The second X-axis adjustment base 461 is fixedly arranged on the front side of the second driving device 45. The lower end of the third mounting bracket 462 is fixed on the second X-axis adjustment base 461 and the position can be adjusted along the X-axis direction. The Z-axis driving component 463 is fixed on the third mounting bracket 462. The second connecting bracket 464 is fixed on the power output end of the Z-axis driving component 463. The third clamping cylinder 491 is fixed on the second connecting bracket 464 and the power output end faces the rear side. The third clamping plate 492 is provided in two groups and is fixed on the power output end of the third clamping cylinder 491. The second blowing assembly 493 is fixed on the second connecting bracket 464 and the blowing end faces the rear side.

[0040] After the protective film is separated from the battery cell, the protective film moves to the rear end of the third clamp under the drive of the first Y-axis drive component 442 and the second Y-axis drive component 453. Since the protective film tends to restore its original U-shaped shape after being completely separated from the battery cell, the front end of the protective film will fold backward and correspond to the upper rear end of the protective film. At this time, the second blowing assembly 493 blows air to the protective film to further ensure that the front end of the protective film will fold backward and correspond to the upper rear end of the protective film. Then the third clamping cylinder 491 drives the third clamping plate 492 to clamp the protective film, and under the drive of the Z-axis drive component 463, it runs downward and releases the protective film, thereby collecting the torn protective film. The front and rear positions of the third mounting bracket 462 on the second X-axis adjustment base 461 can be adjusted to adapt to battery cells of different specifications.

[0041] In the present design, waste baffles 410 are also included. Three groups of waste baffles 410 are arranged and correspond to the left side, right side and rear side of the third clamping jaw assembly 49 respectively. The protective film waste can be confined to the three groups of waste baffles 410 for collection. Waste collection holes can be set in the three groups of waste baffles 410. The protective film waste enters the collection container through the waste collection holes to ensure the cleanliness of the equipment.

[0042] Its working principle is as follows: when the protective film on the battery cell is to be torn off, the battery cell is placed on a fixed platform 41, the first blowing assembly 42 blows the protective film at the front end of the battery cell upwards to make the end of the protective film tilted, the first clamping claw assembly 47 clamps the tilted position of the protective film and under the drive of the first driving device 44, the protective film is torn off backwards from the upper end surface of the battery cell, then the second clamping claw assembly 48 clamps the middle part of the protective film, the first handling robot 43 adsorbs the upper end surface of the battery cell and makes the battery cell rise, and the lower end surface of the battery cell is separated from the protective film , so that the protective film is completely torn off from the battery cell. The torn protective film is moved to the rear end of the third clamping jaw assembly 49 under the drive of the first driving device 44 and the second driving device 45. The protective film is clamped by the third clamping jaw assembly 49 and driven by the third driving device 46 to move downward and release the protective film for collection. Since the third clamping jaw assembly 49 clamps on the non-sticky surface of the protective film, the protective film will not adhere to the third clamping jaw assembly 49 when it is released, ensuring the stable operation of the film tearing mechanism 4.

[0043] like Figures 7 to 9As shown, the leak detection mechanism 5 includes a leak detection device 51, a transfer platform 52, a second handling robot 53, a material unloading robot 54 and a defective product unloading device 55, and the leak detection device 51 includes a base 5101, a Y-axis slide 5102, a first bracket 5103, a second bracket 5104, a first Z-axis drive assembly 5105, a second Z-axis drive assembly 5106, a first upper mold 5107, a second upper mold 5108, a first Y-axis drive assembly 5109, a second Y-axis drive assembly 5110, a first lower mold 5111 111 and the second lower mold 5112, the Y-axis slide 5102 is fixed above the base 5101, the first bracket 5103 is mounted above the left end of the base 5101, the first Z-axis drive assembly 5105 is fixed on the first bracket 5103, the upper end of the first upper mold 5107 is fixed to the power output end of the first Z-axis drive assembly 5105, the first Y-axis drive assembly 5109 is fixed on the base 5101, and the first lower mold 5111 is fixed to the power output end of the first Y-axis drive assembly 5109 and the lower end is connected to the power output end of the first Y-axis drive assembly 5109. The Y-axis slide 5102 is slidably connected, the first Y-axis driving assembly 5109 drives the first lower mold 5111 to run between the left end and the middle of the base 5101, the second bracket 5104 is set above the right end of the base 5101, the second Z-axis driving assembly 5106 is fixed on the second bracket 5104, the upper end of the second upper mold 5108 is fixed to the power output end of the second Z-axis driving assembly 5106, the second Y-axis driving assembly 5110 is fixed on the base 5101, and the second lower mold 5112 is fixed on the second Y The power output end and lower end of the shaft driving assembly 5110 are slidably connected to the Y-axis slide 5102. The second Y-axis driving assembly 5110 drives the second lower mold 5112 to run between the right end and the middle of the base 5101. The transfer platform 52 is fixedly arranged on the front side of the leak detection device 51. The defective product unloading device 55 is fixedly arranged on the side of the transfer platform 52. The second handling robot 53 is fixedly arranged between the transfer platform 52 and the defective product unloading device 55. The unloading robot 54 is mounted above the middle of the base 5101.

[0044] The second handling robot 53 grabs the battery cell to be tested from the adsorption carrier 412 on the rear side of the fixed platform 41 and places it on the transfer platform 52. The transfer platform 52 can store multiple groups of battery cells at the same time. The unloading robot 54 places the battery cell to be tested on the transfer platform 52 into the leakage detection device 51 for detection and transports the battery cell that has passed the inspection in the leakage detection device 51 to the subsequent process. The battery cell that fails the inspection is transported to the defective product unloading device 55 by the second handling robot 53. On the leakage detection device 51, the first Y-axis driving component 5109 and the second Y-axis driving component 5110 respectively drive the first lower mold 5111 and the second lower mold 5112 to run on the Y-axis slide 5102, so that the first lower mold 5111 and the second lower mold 5112 are The mold 5112 moves alternately to the middle of the base 5101, and transports the battery cells to be tested to the bottom of the first upper mold 5107 and the second upper mold 5108 respectively, and the first Z-axis drive assembly 5105 and the second Z-axis drive assembly 5106 respectively drive the first upper mold 5107 and the second upper mold 5108 to descend, so that the first upper mold 5107 and the first lower mold 5111 are closed and sealed, and then high-pressure gas is introduced into the mold to detect liquid leakage of the battery cells in the mold. Based on the same principle, the second upper mold 5108 and the second lower mold 5112 are closed and sealed, and then high-pressure gas is introduced into the mold to detect liquid leakage of the battery cells in the mold. The two groups of molds detect the battery cells alternately, thereby improving the automation and efficiency of battery cell leakage detection.

[0045] The upper end of the transfer platform 52 is provided with an adsorption component, which can adsorb and fix the battery cells placed on the transfer platform 52 to prevent the battery cells from shifting.

[0046] The unloading robot 54 includes a third bracket 541, an X-axis driving assembly 542, a fourth bracket 543, a first Z-axis cylinder 544, a second Z-axis cylinder 545, a rotating cylinder 546, a first adsorption material claw 547 and a second adsorption material claw 548. The third bracket 541 is fixed on the base 5101, the X-axis driving assembly 542 is fixed to the upper end of the third bracket 541, the fourth bracket 543 is fixed to the power output end of the X-axis driving assembly 542, the first Z-axis cylinder 544 and the second Z-axis cylinder 545 are respectively fixed to the front and rear ends of the fourth bracket 543, the first adsorption material claw 547 is fixed to the power output end of the first Z-axis cylinder 544, the rotating cylinder 546 is fixed to the power output end of the second Z-axis cylinder 545, and the second adsorption material claw 548 is fixed to the power output end of the rotating cylinder 546.

[0047] The unloading robot 54 can simultaneously transport the battery cells on the transfer platform 52 to the leak detection device 51 and transport the battery cells in the leak detection device 51 to the post-process. The X-axis drive assembly 542 drives the fourth bracket 543 to move forward, the first Z-axis cylinder 544 drives the first adsorption claw 547 to descend and adsorb the battery cells on the transfer platform 52, the second Z-axis cylinder 545 drives the rotating cylinder 546 and the second adsorption claw 548 to descend, and the second adsorption claw 548 adsorbs the battery cells in the first lower mold 5111 or the second lower mold 5112. Attached, then the first Z-axis cylinder 544 and the second Z-axis cylinder 545 are reset, and after the rotating cylinder 546 rotates 90°, the X-axis driving assembly 542 drives the fourth bracket 543 to move backward, and places the battery cells on the first adsorption claw 547 in the first lower mold 5111 or the second lower mold 5112, and the battery cells on the second adsorption claw 548 are placed on the conveyor belt in the subsequent process. The rotating cylinder 546 can rotate multiple groups of battery cells so that the arrangement direction of the battery cells is consistent with the conveying direction of the conveyor belt in the subsequent process, ensuring that the battery cells are arranged in sequence on the conveyor belt.

[0048] The first material adsorption claws 547 and the second material adsorption claws 548 are each provided in three groups, and can simultaneously grasp three groups of battery cells, thereby improving detection efficiency.

[0049] The above does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A battery cell film tearing and positive pressure leak detection device, characterized in that: The machine comprises a frame and a feeding mechanism, a feeding robot, a film-tearing mechanism and a leakage detection mechanism fixed on the frame, the feeding mechanism is provided in two groups and corresponds to the left and right sides of the feeding robot, the film-tearing mechanism is provided in two groups and corresponds to the rear sides of the two groups of the feeding mechanisms respectively, and the leakage detection mechanism corresponds to the rear sides of the two groups of the film-tearing mechanisms; the film-tearing mechanism comprises a fixed platform, a first blowing assembly, a first handling robot, a first driving device, a second driving device, a third driving device, a first clamping assembly, a second clamping assembly and a third clamping assembly, the fixed platform comprises a first mounting bracket and an adsorption platform, the adsorption platform is provided in two groups and fixed on the front and rear sides above the first mounting bracket, the first blowing assembly is fixed on the front of the first mounting bracket end, the first handling robot is mounted above the two groups of adsorption platforms, the first driving device is fixedly arranged on the right side of the fixed platform, the first clamping jaw assembly is fixed at the power output end of the first driving device, and the first driving device drives the first clamping jaw assembly to move along the X-axis and Y-axis directions, the second driving device is fixedly arranged on the left side of the fixed platform, the second clamping jaw assembly is fixed at the power output end of the second driving device, and the second driving device drives the second clamping jaw assembly to move along the Y-axis direction, the third driving device is fixedly arranged in front of the second driving device, the third clamping jaw assembly is fixed at the power output end of the third driving device, and the third driving device drives the third clamping jaw assembly to move along the Z-axis direction;The leakage detection mechanism includes a leakage detection device, a transfer platform, a second handling robot, a material unloading robot and a defective product unloading device. The leakage detection device includes a base, a Y-axis slide, a first bracket, a second bracket, a first Z-axis drive assembly, a second Z-axis drive assembly, a first upper mold, a second upper mold, a first Y-axis drive assembly, a second Y-axis drive assembly, a first lower mold and a second lower mold. The Y-axis slide is fixed above the base, the first bracket is mounted above the left end of the base, the first Z-axis drive assembly is fixed on the first bracket, the upper end of the first upper mold is fixed to the power output end of the first Z-axis drive assembly, the first Y-axis drive assembly is fixed to the base, the first lower mold is fixed to the power output end of the first Y-axis drive assembly and the lower end is slidably connected to the Y-axis slide, and the first Y-axis drive assembly drives The first lower mold runs between the left end and the middle part of the base, the second bracket is mounted above the right end of the base, the second Z-axis drive assembly is fixed on the second bracket, the upper end of the second upper mold is fixed to the power output end of the second Z-axis drive assembly, the second Y-axis drive assembly is fixed to the base, the second lower mold is fixed to the power output end of the second Y-axis drive assembly and the lower end is slidably connected to the Y-axis slide, the second Y-axis drive assembly drives the second lower mold to run between the right end and the middle part of the base, the transfer platform is fixedly arranged at the front side of the leak detection device, the defective product unloading device is fixedly arranged on the side of the transfer platform, the second handling robot is fixedly arranged between the transfer platform and the defective product unloading device, and the unloading robot is mounted above the middle part of the base; The upper end of the transfer platform is provided with an adsorption component; The unloading robot comprises a third bracket, an X-axis driving assembly, a fourth bracket, a first Z-axis cylinder, a second Z-axis cylinder, a rotating cylinder, a first adsorption material claw and a second adsorption material claw, wherein the third bracket is fixed to the base, the X-axis driving assembly is fixed to the upper end of the third bracket, the fourth bracket is fixed to the power output end of the X-axis driving assembly, the first Z-axis cylinder and the second Z-axis cylinder are respectively fixed to the front and rear ends of the fourth bracket, the first adsorption material claw is fixed to the power output end of the first Z-axis cylinder, the rotating cylinder is fixed to the power output end of the second Z-axis cylinder, and the second adsorption material claw is fixed to the power output end of the rotating cylinder; The first adsorption claws and the second adsorption claws are each provided in three groups.

2. The battery cell film tearing and positive pressure leak detection device according to claim 1, characterized in that: The first driving device includes an X-axis driving component, a first Y-axis driving component, a movable bracket and an adjusting bracket, the first clamping jaw assembly includes a first clamping cylinder, a fixed clamping plate and a first clamping plate, the X-axis driving component is fixedly arranged on the right side of the fixed platform, the first Y-axis driving component is fixed to the power output end of the X-axis driving component, the movable bracket is fixed to the power output end of the first Y-axis driving component, the adjusting bracket is fixed to the movable bracket and can be adjusted in position along the Z-axis direction, the first clamping cylinder is fixed to the adjusting bracket, the fixed clamping plate is fixed to the left side of the first clamping cylinder and corresponds to the top of the adsorption platform, and the first clamping plate is fixed to the power output end of the first clamping cylinder and corresponds to the front side of the fixed clamping plate.

3. The battery cell film tearing and positive pressure leak detection device according to claim 1, characterized in that: The second driving device includes a first X-axis adjustment base, a second mounting bracket, a second Y-axis driving component and a first connecting bracket, the second clamping jaw assembly includes a second clamping cylinder and a second clamping plate, the first X-axis adjustment base is fixedly arranged on the left side of the fixed platform, the lower end of the second mounting bracket is fixed on the first X-axis adjustment base and the position can be adjusted along the X-axis direction, the second Y-axis driving component is fixed to the upper end of the second mounting bracket, the first connecting bracket is fixed to the power output end of the second Y-axis driving component, the second clamping cylinder is fixed on the first connecting bracket and the power output end faces the right side, and the second clamping plate is provided in two groups and is fixed to the power output end of the second clamping cylinder.

4. The battery cell film tearing and positive pressure leak detection device according to claim 1, characterized in that: The third driving device includes a second X-axis adjustment base, a third mounting bracket, a Z-axis driving component and a second connecting bracket, the third clamping jaw assembly includes a third clamping cylinder, a third clamping plate and a second blowing assembly, the second X-axis adjustment base is fixedly arranged on the front side of the second driving device, the lower end of the third mounting bracket is fixed on the second X-axis adjustment base and the position along the X-axis direction can be adjusted, the Z-axis driving component is fixed on the third mounting bracket, the second connecting bracket is fixed on the power output end of the Z-axis driving component, the third clamping cylinder is fixed on the second connecting bracket with the power output end facing the rear side, the third clamping plate is provided in two groups and is fixed on the power output end of the third clamping cylinder, and the second blowing assembly is fixed on the second connecting bracket with the blowing end facing the rear side.

5. The battery cell film tearing and positive pressure leak detection device according to claim 1, characterized in that: The film tearing mechanism also includes waste baffles fixed on the frame, and the waste baffles are arranged in three groups and correspond to the left side, right side and rear side of the third clamping jaw assembly respectively.

Images