A full-automatic liquid leakage detection device for power batteries

Abstract

The application discloses a kind of full-automatic liquid leakage detection equipment of power battery, it includes rack and all be set on the rack on battery loading platform, multiple dynamic gantry truss mechanical hand component, automatic in-out material detection component and unloading mechanism, the battery loading platform includes first loading platform and second loading platform, the multiple dynamic gantry truss mechanical hand component is used to the battery in the first loading platform or the second loading platform is clamped to the automatic in-out material component, the multiple dynamic gantry truss mechanical hand component is also used to the battery in the automatic in-out material component is clamped to the unloading mechanism.In this application, it can be implanted into battery automatic production line, and the incoming material code reading, code reading defective discharge, mechanical hand grabbing, battery into sealed cavity detection, qualified battery flows into next work station, detection NG battery is discharged by another channel, etc.are automatically completed, and the efficiency of battery detection is improved.

Description

Technical Field

[0001] This invention relates to the field of battery leakage detection, and more particularly to a fully automatic power battery leakage detection device. Background Technology

[0002] Lithium-ion battery leakage detection is a crucial process in battery manufacturing, significantly impacting the battery's safety during subsequent use. The battery manufacturing process typically includes an electrolyte injection step. After electrolyte injection, a sealing test is required. Poor electrolyte sealing can lead to battery failure, and electrolyte leakage can also cause secondary damage to external components.

[0003] Currently, the industry standard for testing battery sealing is as follows: First, the battery to be tested is immersed in a testing solution. Then, high-pressure gas is injected into the battery, and the presence of bubbles is observed. The presence of bubbles indicates poor sealing, while the absence of bubbles indicates good sealing. Another commonly used method is to first fill the battery with compressed air at a certain pressure. After the inflation is balanced, the gas supply is cut off, and then the pressure drop inside the battery per unit time is measured using pressure measuring devices and instruments. These methods are not only inefficient but also cannot achieve online automatic detection. This leads to the risk that potentially leaking batteries may be transferred to the next process or used during operation, posing a significant safety hazard. Summary of the Invention

[0004] The main objective of this invention is to provide a fully automatic power battery leakage detection device, which aims to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention proposes a fully automatic power battery leakage detection device, comprising a frame and a battery loading platform, a multi-moving sub-gantry manipulator assembly, an automatic feeding and discharging detection assembly, and a discharging mechanism, all mounted on the frame. The battery loading platform includes a first loading platform and a second loading platform. The multi-moving sub-gantry manipulator assembly is used to clamp batteries from the first loading platform or the second loading platform into the automatic feeding and discharging assembly. The multi-moving sub-gantry manipulator assembly is also used to clamp batteries from the automatic feeding and discharging assembly into the discharging mechanism.

[0006] When the battery is picked up by the multi-moving gantry robot assembly on the first feeding platform and placed into the automatic feeding and unloading detection assembly, the second feeding platform is fed in and exchanges positions with the first feeding platform.

[0007] In one embodiment, the battery loading platform includes a drive motor and a first slide rail and a second slide rail connected to the drive motor. The first loading platform is slidably disposed on the first slide rail, and the second loading platform is disposed on the second slide rail.

[0008] In one embodiment, the first slide rail is higher than the second slide rail.

[0009] In one embodiment, the multi-movement gantry robot assembly includes a linear guide rail and a first mechanical handpiece disposed on the linear guide rail. The first mechanical handpiece is used to clamp the battery in the first loading platform or the second loading platform into the automatic feeding and unloading assembly.

[0010] In one embodiment, the automatic feeding and unloading detection assembly includes a detection instrument, a NG (Not Good) unloading position, and an OK (Good) buffer position. The detection instrument has a cavity A and a cavity B, both of which are used to detect batteries. The multi-movement gantry crane robot assembly also includes a second robotic hand mounted on the linear guide rail. The second robotic hand is used to clamp the OK-detected batteries in cavities A and B into the OK buffer position.

[0011] In one embodiment, the unloading mechanism includes a tilting and shifting pitch assembly and an unloading assembly. The multi-movement gantry manipulator assembly further includes a third manipulator and a fourth manipulator disposed on the linear guide rail. The third manipulator is used to pick up the battery in the OK detection buffer position into the tilting and shifting pitch assembly, and the fourth manipulator is used to pick up the battery in the tilting and shifting pitch assembly into the unloading assembly.

[0012] In one embodiment, the flipping and reversing assembly includes a flipping cylinder and a flipping plate connected to the flipping cylinder. The flipping plate is provided with an adsorption element for adsorbing the battery, so that after the adsorption element adsorbs the battery, the flipping cylinder flips the battery by a preset angle.

[0013] In one embodiment, the feeding assembly includes a feeding pull belt, and the fourth mechanical hand is used to clamp the battery in the flip-shifting assembly into the feeding pull belt.

[0014] In one embodiment, the feeding assembly further includes a barcode scanning component disposed on the feeding conveyor belt to identify the identification code on the battery as the battery passes by the barcode scanning component.

[0015] In one embodiment, the unloading assembly further includes an NG buffer tape and a gripping robot, the gripping robot being used to grip the battery onto the NG buffer tape when the battery's identification code is incorrectly identified.

[0016] In the technical solution of this invention, a fully automated power battery leakage detection device includes a frame and a battery loading platform, a multi-moving sub-gantry gantry robot assembly, an automatic feeding and discharging detection assembly, and a discharging mechanism, all mounted on the frame. The battery loading platform includes a first loading platform and a second loading platform. The multi-moving sub-gantry gantry robot assembly is used to clamp batteries from the first or second loading platform into the automatic feeding and discharging assembly. The multi-moving sub-gantry gantry robot assembly is also used to clamp batteries from the automatic feeding and discharging assembly into the discharging mechanism. This application can be integrated into an automated battery production line, automatically completing processes such as incoming battery code reading, rejection of defective codes, robot gripping, battery entry into a sealed cavity for detection, flow of qualified batteries into the next workstation, and discharge of NG batteries through another channel, thereby improving the efficiency of battery testing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a fully automatic power battery leakage detection device according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the fully automatic power battery leakage detection device according to an embodiment of the present invention, with the outer casing removed.

[0020] Figure 3 This is a schematic diagram of the battery loading platform according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the multi-movement sub-gantry truss robot assembly according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the automatic feeding and discharging detection component according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the first state of the tilting and turning pitch component according to an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the second state of the tilting and pitching component according to an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the feeding assembly according to an embodiment of the present invention.

[0026] Reference numerals: 10. Frame; 20. Battery loading platform; 21. Drive motor; 22. First slide rail; 23. Second slide rail; 24. First loading platform; 25. Second loading platform; 30. Multi-movement gantry gantry robot assembly; 31. Linear slide rail; 32. First robot hand; 33. Second robot hand; 34. Third robot hand; 35. Fourth robot hand; 40. Automatic feeding / discharging detection assembly; 41. Detection instrument; 42. Detection of NG unloading position; 43. Detection of OK buffer position; 44. Cavity A; 45. Cavity B; 50. Unloading mechanism; 51. Tilting and shifting distance assembly; 511. Tilting cylinder; 512. Tilting plate; 513. Adsorption component; 52. Unloading assembly; 521. Unloading pull belt; 522. Gripping robot; 523. Barcode scanning component; 524. NG buffer pull belt.

[0027] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0030] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0032] This invention provides a fully automatic leakage detection device for power batteries.

[0033] like Figure 1-2 As shown, the fully automatic power battery leakage detection equipment provided in this embodiment of the invention includes a frame 10, a housing covering the outside of the frame 10, and a battery loading platform 20, a multi-moving sub-gantry manipulator assembly 30, an automatic feeding and discharging detection assembly 40, and a discharging mechanism 50, all mounted on the frame 10. The battery loading platform 20 includes a first loading platform 24 and a second loading platform 25. The multi-moving sub-gantry manipulator assembly 30 is used to clamp batteries from the first loading platform 24 or the second loading platform 25 into the automatic feeding and discharging detection assembly 40. The multi-moving sub-gantry manipulator assembly 30 is also used to clamp batteries from the automatic feeding and discharging detection assembly 40 into the discharging mechanism 50.

[0034] In this embodiment, the fully automated power battery leakage detection equipment can be integrated into the battery automated production line. It can automatically complete the following processes: incoming material code reading, rejection of defective codes, robotic arm gripping, battery inspection in a sealed cavity, qualified batteries flowing into the next workstation, and NG batteries being discharged through another channel, thereby improving the efficiency of battery inspection.

[0035] Please refer to Figure 3 The battery loading platform 20 includes a drive motor 21 and a first slide rail 22 and a second slide rail 23 connected to the drive motor 21. The first loading platform 24 is slidably disposed on the first slide rail 22, and the second loading platform 25 is disposed on the second slide rail 23.

[0036] In this embodiment, when the host computer detects that the first loading platform 24 is without a battery, it inserts a battery. The sensor detects the battery and sends a signal to the controller, causing the drive motor 21 to rotate and swap the positions of the first loading platform 24 and the unloading platform 24. After the swap, the first loading platform 24 waits for the multi-moving gantry crane robot to remove the battery, while the second loading platform 25 can simultaneously begin loading due to the swap of the first loading platform 24. Specifically, to prevent interference when the first loading platform 24 and the second loading platform 25 swap positions, the first slide rail 22 is set higher than the second slide rail 23. In other words, the second loading platform 25 is located below the first loading platform 24, so there is no interference when the first loading platform 24 and the second loading platform 25 move left and right to swap positions.

[0037] Please refer to Figure 4The multi-moving sub-gantry manipulator assembly 30 includes a linear guide rail 31 and a first mechanical actuator 32 disposed on the linear guide rail 31. The first mechanical actuator 32 is used to clamp batteries from the first loading platform 24 or the second loading platform 25 into the automatic feeding / unloading detection assembly 40. The multi-moving sub-gantry manipulator assembly 30 also includes a second mechanical actuator 33 disposed on the linear guide rail 31, and further includes a third mechanical actuator 34 and a fourth mechanical actuator 35 disposed on the linear guide rail 31. In this embodiment, the multi-moving sub-gantry manipulator assembly 30 has a total of four actuators. The first mechanical actuator 32 receives the loading platform and loads cavities A44 and B45 into the automatic feeding / unloading detection assembly 40. The second mechanical actuator 33 is used to detect the OK battery handling in cavities A44 and B45 and place them in the battery handling OK buffer position 43. The third mechanical actuator 34 is responsible for picking up two batteries at a time from the OK detection buffer position 43 and transferring them to the flipping and shifting assembly 51 for shifting. The fourth mechanical actuator 35 picks up the batteries after shifting and shifting and transfers them onto the unloading conveyor belt 521 to complete the subsequent barcode scanning and information recording.

[0038] Please refer to Figure 5 The automatic loading and unloading detection assembly 40 includes a detection instrument 41, a NG (Not Good) unloading position 42, and a OK (Good) buffer position 43. The detection instrument 41 has a cavity A44 and a cavity B45, both of which are used to detect batteries. The second mechanical handpiece 33 is used to clamp the OK-detected batteries from cavities A44 and B45 to the OK buffer position 43. The first mechanical handpiece 32 of the multi-movement gantry crane manipulator clamps the batteries from the first loading platform 24 to cavity A44 for loading. While cavity A44 is being tested, the first mechanical handpiece 32 will again load the batteries from the second loading platform 25 (the first loading platform 24 and the second loading platform 25 are located in the same position) to cavity B45. When a battery is OK-detected, the second mechanical handpiece 33 will move the battery to the OK buffer position 43 at the OK unloading position. For NG (Not Good) detection, the battery will be directly transferred from the VOC detection position to the NG unloading position 42. Then, a buzzer will be used to remind someone to remove the NG battery.

[0039] Please refer to Figure 6-7 The feeding mechanism 50 includes a flipping and shifting distance component 51 and a feeding component 52. The third mechanical handpiece 34 is used to pick up the battery in the OK detection buffer position 43 into the flipping and shifting distance component 51, and the fourth mechanical handpiece 35 is used to pick up the battery in the flipping and shifting distance component 51 into the feeding component 52.

[0040] Specifically, the flipping and shifting assembly 51 includes a flipping cylinder 511 and a flipping plate 512 connected to the flipping cylinder 511. The flipping plate 512 is provided with an adsorption element 513 for adsorbing batteries, so that after the adsorption element 513 adsorbs the battery, the flipping cylinder 511 flips the battery by a preset angle. The third mechanical actuator 34 picks up two batteries at a time from the OK buffer position 43 and transports them to the battery flipping and shifting mechanism (e.g., Figure 6 As shown, after the adsorption element 513 in the tilting and reversing assembly 51 adsorbs and fixes the battery, the third mechanical actuator 34 releases the battery. After the third mechanical actuator 34 releases the battery, the tilting and reversing assembly 51 will rotate 90 degrees and "transform" into... Figure 7 As shown, the two batteries are removed by the fourth mechanical handpiece 35 and placed on the OK unloading conveyor belt 521. It is understood that during the flipping process, one of the flipping plates 512 can be moved via a sliding mechanism to prevent interference between the two batteries.

[0041] Please refer to Figure 8 The unloading assembly 52 includes an unloading conveyor belt 521, and the fourth robotic arm 35 is used to clamp the battery in the flipping and turning assembly 51 into the unloading conveyor belt 521. The unloading assembly 52 also includes a barcode scanning component 523, which is disposed on the unloading conveyor belt 521 to identify the identification code on the battery when the battery passes by the barcode scanning component 523. The unloading assembly 52 also includes an NG buffer conveyor belt 524 and a gripping robot 522, which is used to grip the battery onto the NG buffer conveyor belt 524 when the identification code of the battery is incorrectly identified.

[0042] In this embodiment, after the battery is flipped and rotated, it is picked up by the fourth robotic arm 35 and placed onto the unloading conveyor belt 521. When flowing to the next workstation, it passes through the barcode scanning unit 523 for barcode identification and recording. If the barcode scanning unit 523 identifies an incorrect barcode, the battery will be picked up by the gripping robotic arm 522 and placed onto the NG buffer conveyor belt 524. If the barcode is correctly identified, the robotic arm will not pick it up; instead, the battery with the OK barcode will flow to the next process.

[0043] The technical solution provided in this invention application has two detection chambers. The purpose is that when one chamber is performing VOC leakage detection, the other chamber can perform the action of battery entering and exiting the chamber, so as to improve the detection efficiency of the device.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A full-automatic liquid leakage detection device for power batteries, characterized in that, The full-automatic liquid leakage detection equipment for the power battery comprises a rack (10), a battery loading platform (20), a multi-motor gantry truss mechanical hand assembly (30), an automatic feeding and discharging detection assembly (40) and a discharging mechanism (50) which are all arranged on the rack (10), the battery loading platform (20) comprises a first loading platform (24) and a second loading platform (25), the multi-motor gantry truss mechanical hand assembly (30) is used for clamping the battery in the first loading platform (24) or the second loading platform (25) to the automatic feeding and discharging detection assembly (40), and the multi-motor gantry truss mechanical hand assembly (30) is also used for clamping the battery in the automatic feeding and discharging detection assembly (40) to the discharging mechanism (50); When the battery is clamped by the multi-motor gantry truss mechanical hand assembly (30) from the first loading platform (24) to the automatic feeding and discharging detection assembly (40), the second loading platform (25) is loaded and interchanged with the first loading platform (24); The battery loading platform (20) comprises a driving motor (21), a first sliding rail (22) and a second sliding rail (23) which are connected with the driving motor (21), the first loading platform (24) is slidably arranged on the first sliding rail (22), and the second loading platform (25) is arranged on the second sliding rail (23); The first sliding rail (22) is higher than the second sliding rail (23); The multi-motor gantry truss mechanical hand assembly (30) comprises a linear guide rail (31) and a first mechanical hand motor (32) arranged on the linear guide rail (31), and the first mechanical hand motor (32) is used for clamping the battery in the first loading platform (24) or the second loading platform (25) to the automatic feeding and discharging detection assembly (40); The automatic feeding and discharging detection assembly (40) comprises a detection instrument (41), a detection NG discharging position (42) and a detection OK buffer position (43), the detection instrument (41) has a cavity A (44) and a cavity B (45), the cavity A (44) and the cavity B (45) are both used for detecting the battery, the multi-motor gantry truss mechanical hand assembly (30) further comprises a second mechanical hand motor (33) arranged on the linear guide rail (31), and the second mechanical hand motor (33) is used for clamping the battery detected OK in the cavity A (44) and the cavity B (45) to the detection OK buffer position (43).

2. The full-automatic liquid leakage detection device for power batteries according to claim 1, characterized in that, The blanking mechanism (50) comprises a turnover distance changing assembly (51) and a blanking assembly (52), the multi-motor gantry truss mechanical arm assembly (30) further comprises a third mechanical arm motor (34) and a fourth mechanical arm motor (35) arranged on the linear guide rail (31), the third mechanical arm motor (34) is used for clamping the battery in the detection OK buffer position (43) into the turnover distance changing assembly (51), and the fourth mechanical arm motor (35) is used for clamping the battery in the turnover distance changing assembly (51) into the blanking assembly (52).

3. The full-automatic liquid leakage detection device for power batteries according to claim 2, characterized in that, The turnover distance changing assembly (51) comprises a turnover cylinder (511) and a turnover plate (512) connected with the turnover cylinder (511), the turnover plate (512) is provided with a suction member (513) for adsorbing the battery, so that the battery is turned over by a preset angle through the turnover cylinder (511) after the battery is adsorbed by the suction member (513).

4. The full-automatic liquid leakage detection device for power batteries according to claim 2, characterized in that, The blanking assembly (52) comprises a blanking pull belt (521), and the fourth mechanical arm motor (35) is used for clamping the battery in the turnover distance changing assembly (51) into the blanking pull belt (521).

5. The full-automatic liquid leakage detection device for power batteries according to claim 4, characterized in that, The blanking assembly (52) further comprises a code scanning component (523), and the code scanning component (523) is arranged on the blanking pull belt (521) to identify the identification code on the battery when the battery passes through the code scanning component (523).

6. The full-automatic liquid leakage detection device for power batteries according to claim 5, characterized in that, The blanking assembly (52) further comprises an NG buffer pull belt (524) and a grabbing mechanical arm (522), and the grabbing mechanical arm (522) is used for grabbing the battery onto the NG buffer pull belt (524) when the identification code of the battery is identified incorrectly.

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