Battery cell tab drawing detection tool

Abstract

The utility model discloses a battery cell tab drawing detection tool, which relates to the field of lithium ion battery testing and comprises a bottom plate, a moving mechanism is fixed on the bottom plate, and a clamping mechanism for clamping and fixing a battery cell is arranged on the moving mechanism. The bracket is arranged on the upper surface of the bottom plate; the second electric push rod is arranged at the top end of the inner side of the bracket, a fixed disc is arranged at the lower end of the second electric push rod, and a rotary disc for rotationally adjusting the battery cell is rotationally arranged on the lower surface of the fixed disc; by adopting the structure, the two moving blocks in external threaded connection with the second two-way screw rod can slide close to each other, the lower ends of the moving blocks are connected with the tension sensors with the clamping plates, and the moving blocks move to drive the inserting columns of the clamping plates to be inserted into lug eyes of the lugs; therefore, the battery tabs can be conveniently and quickly clamped and fixed, and the clamping efficiency is greatly improved while the clamping component does not need to be manually operated before and after manual detection.

Description

Technical Field

[0001] The utility model belongs to the field of lithium ion battery testing, and particularly relates to a battery cell tab pulling detection tool. Background Art

[0002] Tabs are commonly used in batteries. They mainly connect the two parts of the battery and play the role of electrical connection and electron conduction between the two parts. In order to facilitate the test use of lithium batteries, the tabs of square lithium-ion batteries are connected to the poles on the battery cover by ultrasonic welding or laser welding.

[0003] A Chinese patent with publication number "CN211262967U" discloses an experimental tooling for tensile testing of battery welding tabs, including a clamping mechanism and a connecting mechanism connected to an experimental tensile testing machine, wherein the clamping mechanism includes two parallel clamps and a locking pull rod connected to the two clamps and enabling the two clamps to clamp the tabs, and the connecting assembly includes two parallel pressure blocks, a sliding rod provided on both sides of the pressure blocks and connected between the two pressure blocks, two clamping plates slidably connected to the sliding rod, a spring sleeved on the sliding rod, and an adjusting assembly connected to one of the pressure blocks for moving one of the clamping plates toward the other clamping plate so that the two clamping plates clamp and fix the clamping mechanism.

[0004] As mentioned above, the tab tensile test tool in the prior art requires manual operation of two clamps through a movable rocker to clamp the tab during use, resulting in low clamping efficiency. In addition, after the test, the clamp needs to be manually unlocked to separate it from the tab, which is very inconvenient. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a battery cell tab pulling detection tool to solve the problems mentioned in the above background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A battery cell tab pulling detection tool, comprising:

[0008] A bottom plate, a moving mechanism is fixed on the bottom plate, and a clamping mechanism for clamping the battery core is provided on the moving mechanism;

[0009] A bracket is arranged on the upper surface of the base plate;

[0010] A second electric push rod is arranged at the top end of the inner side of the bracket, and a fixed plate is arranged at the lower end of the second electric push rod, a rotating plate corresponding to the battery cell tab is rotatably arranged on the lower surface of the fixed plate, and a second driving motor for driving the rotating plate to rotate is arranged on the fixed plate;

[0011] Wherein, a fixing mechanism is provided on the lower surface of the turntable for cooperating with the battery cell tab during detection.

[0012] As a preferred technical solution, the moving mechanism includes a base, which is fixed at the upper end of the base plate, the upper end of the base is slidably connected to a fixed plate, the upper end of the base plate is fixed with a first electric push rod, the output end of the first electric push rod is fixed to the back side of the fixed plate, and the clamping mechanism is fixed to the upper end of the fixed plate.

[0013] As a preferred technical solution, guide rails are symmetrically fixed to the upper end of the base, and the fixing plate is slidably connected to the upper end of the base via the guide rails.

[0014] As a preferred technical solution, the clamping mechanism includes an assembly frame, which is fixed to the upper end of the fixed plate, and the inner side of the assembly frame is rotatably connected to a first bidirectional screw rod, and the external thread of the first bidirectional screw rod is connected to a clamping block, and one end of the clamping block close to the first bidirectional screw rod is slidably connected to the inner side of the assembly frame, and a clamping groove is provided on the front side of the clamping block. A first drive motor is fixed to the right end of the assembly frame, and one end of the first bidirectional screw rod rotates through the frame wall of the assembly frame and is fixed to the output end of the first drive motor.

[0015] As a preferred technical solution, a guide rod is symmetrically fixed on the inner side of the assembly frame, one end of the clamping block close to the first bidirectional screw rod is slidably connected to the outer side of the guide rod, and a rubber layer is bonded to one side of the inner wall of the clamping groove.

[0016] As a preferred technical solution, a sleeve column is symmetrically fixed to the upper end of the fixed plate, a sleeve is fixed to the inner side of the bracket, and the upper end of the sleeve column is slidably connected to the inner side of the sleeve.

[0017] As a preferred technical solution, the fixing mechanism includes a first mounting groove and a second mounting groove, the first mounting groove and the second mounting groove are both opened at the lower end of the turntable, a third driving motor is fixed on the inner side of the first mounting groove, a second bidirectional screw rod is rotatably connected to the inner side of the second mounting groove, one end of the second bidirectional screw rod is rotatably extended into the inner side of the first mounting groove and is fixed to the output end of the third driving motor, a moving block is connected to the external thread of the second bidirectional screw rod, the moving block is slidably connected to the inner side of the second mounting groove, a tension sensor is fixed to the lower end of the moving block, a splint is fixed to the sensing end of the tension sensor, and columns are fixed on the opposite sides of the splint.

[0018] As a preferred technical solution, guide grooves are symmetrically opened on the inner side of the second installation groove, the moving block is slidably connected to the inner side of the second installation groove through the guide groove, and a camera is fixed to the sensing end of the tension sensor.

[0019] As a preferred technical solution, a control module is installed on the upper end of the base plate through a support rod, and a display screen is fixedly installed on the front of the control module.

[0020] In summary, the utility model mainly has the following beneficial effects:

[0021] First, when fixing the battery, the battery is placed in the clamping groove of the clamping block which is pushed horizontally to the upper end of the base, and then the first driving motor is operated so that the output end of the first driving motor drives the first bidirectional screw to rotate inside the assembly frame, and the rotation of the first bidirectional screw enables the two clamping blocks with clamping grooves to slide close to each other to position and clamp batteries of various specifications, and the battery is positioned and clamped by the clamping mechanism, and then the fixing plate is pushed to slide on the base by the output end of the first electric push rod, so that the position of the battery pole ear can be conveniently adjusted to be directly below the turntable fixing mechanism;

[0022] Second, when the battery is fixed in the positioning position directly below the fixing mechanism, the output end of the second electric push rod pushes the turntable down to approach the battery ear, and then the output end of the third drive motor is used to drive the second bidirectional lead screw to rotate inside the second mounting groove, so that the two moving blocks connected to the second bidirectional lead screw external thread can slide close to each other, and the lower end of the moving block is connected to a tension sensor with a splint, and the movement of the moving block drives the plug post of the splint to be inserted into the ear eye of the ear, so that the battery ear can be quickly clamped and fixed, and there is no need for manual inspection before and after manual operation of the clamping components, which also greatly improves the clamping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the back structure of the base of the utility model;

[0025] Figure 3 It is a bottom view of the turntable of the utility model;

[0026] Figure 4 The utility model Figure 3 Enlarged view of point A in the middle.

[0027] 1. Base plate; 2. Display screen; 3. Control module; 4. Bracket; 5. Moving mechanism; 501. Base; 502. Fixed plate; 503. First electric push rod; 6. Guide rail; 7. Clamping mechanism; 701. First drive motor; 702. Assembly frame; 703. Clamping block; 704. Clamping groove; 705. First bidirectional screw rod; 8. Guide rod; 9. Rubber layer; 10. Second electric push rod; 11. Fixed disk; 12. Turntable; 13. Second drive motor; 14. Sleeve; 15. Sleeve column; 16. Fixing mechanism; 161. First mounting groove; 162. Second bidirectional screw rod; 163. Third drive motor; 164. Second mounting groove; 165. Tension sensor; 166. Clamping plate; 167. Moving block; 17. Guide groove; 18. Camera; 19. Insert column. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] refer to Figures 1 to 4The utility model provides a technical solution: a battery cell pole ear pulling detection tool, comprising: a bottom plate 1, a control module 3 is installed on the upper end of the bottom plate 1 through a support rod, a display screen 2 is fixedly installed on the front of the control module 3, a moving mechanism 5 is fixed on the bottom plate 1, which is convenient for moving and adjusting the position of the battery cell after clamping, and a clamping mechanism 7 for clamping the battery cell is arranged on the moving mechanism 5, which is convenient for quickly clamping batteries of different sizes; a bracket 4 is arranged on the upper surface of the bottom plate 1; a second electric push rod 10 is arranged at the top end of the inner side of the bracket 4, and a fixed disk 11 is arranged at the lower end of the second electric push rod 10, and a rotating disk 12 corresponding to the battery cell pole ear is rotatably arranged on the lower surface of the fixed disk 11, which is convenient for adjusting the position of the fixing mechanism 16 so that it can better cooperate with the battery cell pole ear, and a second driving motor 13 that drives the rotating disk 12 to rotate is arranged on the fixed disk 11; wherein, a fixing mechanism 16 that cooperates with the battery cell pole ear during detection is arranged on the lower surface of the rotating disk 12, and when detecting, the rotating disk 12 is in contact with the battery cell pole ear. The upper end of the fixed plate 11 is symmetrically fixed with a sleeve 15, and the inner side of the bracket 4 is fixed with a sleeve 14. The upper end of the sleeve 15 is slidably connected to the inner side of the sleeve 14. The output end of the second electric push rod 10 on the bracket 4 is extended and retracted, so that the fixed plate 11 with the support can be easily pushed to slide vertically up and down in the sleeve 14 on the bracket 4; the camera 18 and the tension sensor 165 are electrically connected to the control module 3 through wires, and the display screen 2 is electrically connected to the control module 3. During the detection process, the second electric push rod 10 is controlled by the control module 3, and the parameters fed back by the tension sensor 165 can be conveniently adjusted to adjust the pulling force; the turntable 12 rotates at the lower end of the fixed plate 11, and the second drive motor 13 is controlled by the control module 3, so that the turntable 12 can be easily adjusted by 90 degrees, so that the device is suitable for the situation where the battery ears are distributed left and right or in the middle of the battery. The practical performance of the device can be greatly improved.

[0030] In this embodiment, preferably, reference Figure 1-2 The moving mechanism 5 includes a base 501, which is fixed to the upper end of the bottom plate 1, and the upper end of the base 501 is slidably connected to a fixed plate 502. A first electric push rod 503 is fixed to the upper end of the bottom plate 1, and the output end of the first electric push rod 503 is fixed to the back of the fixed plate 502. The clamping mechanism 7 is fixed to the upper end of the fixed plate 502. The battery is positioned and clamped by the clamping mechanism 7, and then the fixed plate 502 is pushed to slide on the base 501 by the output end of the first electric push rod 503, which can conveniently adjust the position of the battery ear to just below the fixing mechanism 16 of the turntable 12; the upper end of the base 501 is symmetrically fixed with a guide rail 6, and the fixed plate 502 is slidably connected to the upper end of the base 501 through the guide rail 6. By installing the guide rail 6 on the upper end of the base 501, the fixed plate 502 can be conveniently slid on the base 501.

[0031] refer to Figure 1-2 The clamping mechanism 7 includes an assembly frame 702, which is fixed to the upper end of the fixed plate 502. The inner side of the assembly frame 702 is rotatably connected to a first bidirectional screw rod 705. The outer thread of the first bidirectional screw rod 705 is connected to a clamping block 703. One end of the clamping block 703 close to the first bidirectional screw rod 705 is slidably connected to the inner side of the assembly frame 702. A clamping groove 704 is provided on the front side of the clamping block 703. A first driving motor 701 is fixed to the right end of the assembly frame 702. One end of the first bidirectional screw rod 705 is rotatably connected to the inner side of the assembly frame 702. The frame wall of the assembly frame 702 and the output end of the first drive motor 701 are fixed. When fixing the battery, the battery is placed horizontally and pushed to the clamping groove 704 of the clamping block 703 at the upper end of the base 501. Then, the first drive motor 701 is operated so that the output end of the first drive motor 701 drives the first bidirectional screw rod 705 to rotate inside the assembly frame 702. The rotation of the first bidirectional screw rod 705 allows the two clamping blocks 703 with clamping grooves 704 to approach each other to position and clamp the battery.

[0032] refer to Figure 1 A guide rod 8 is symmetrically fixed on the inner side of the assembly frame 702, and one end of the clamping block 703 close to the first bidirectional screw rod 705 is slidably connected to the outer side of the guide rod 8. A rubber layer 9 is bonded to one side of the inner wall of the clamping groove 704. By installing the guide rod 8 on the inner side of the assembly frame 702, the clamping block 703 can be easily slid on the inner side of the assembly frame 702. By bonding the rubber layer 9 on the inner side of the clamping groove 704, the friction increase by the rubber layer 9 can conveniently improve the clamping stability of the clamping block 703.

[0033] In this embodiment, preferably, reference Figure 3-4The fixing mechanism 16 includes a first mounting groove 161 and a second mounting groove 164, both of which are disposed at the lower end of the turntable 12, a third driving motor 163 is fixed to the inner side of the first mounting groove 161, a second bidirectional screw rod 162 is rotatably connected to the inner side of the second mounting groove 164, one end of the second bidirectional screw rod 162 is rotatably extended into the inner side of the first mounting groove 161 and is fixed to the output end of the third driving motor 163, a moving block 167 is connected to the external thread of the second bidirectional screw rod 162, the moving block 167 is slidably connected to the inner side of the second mounting groove 164, a tension sensor 165 is fixed to the lower end of the moving block 167, a clamping plate 166 is fixed to the sensing end of the tension sensor 165, and a clamping plate 166 is fixed to the sensing end of the clamping plate 166. There are plug posts 19 fixed on the opposite sides. When the battery is fixed in the positioning position directly below the fixing mechanism 16, the output end of the second electric push rod 10 pushes the turntable 12 down to approach the battery ear, and then the output end of the third drive motor 163 is used to drive the second bidirectional screw rod 162 to rotate inside the second mounting groove 164, so that the two moving blocks 167 connected to the external thread of the second bidirectional screw rod 162 can slide close to each other, and the lower end of the moving block 167 is connected to the tension sensor 165 with a splint 166. The movement of the moving block 167 drives the plug post 19 of the splint 166 to be inserted into the ear eye of the ear, so that the battery ear can be quickly clamped and fixed; the ears on the market are basically equipped with ear eyes for the convenience of installation and power connection.

[0034] refer to Figure 4 A guide groove 17 is symmetrically provided on the inner side of the second mounting groove 164, and the movable block 167 is slidably connected to the inner side of the second mounting groove 164 through the guide groove 17. A camera 18 is fixed to the sensing end of the tension sensor 165. By providing the guide groove 17 on the inner side of the second mounting groove 164, the movable block 167 can slide conveniently. By installing the camera 18 in the sensing area of ​​the tension sensor 165, during the detection process after the clamping plate 166 clamps the pole ear, the camera 18 can transmit the captured image to the display screen 2 of the control module 3, so that the staff can intuitively see through the display screen 2 whether there is a problem of cold soldering at the center position of the pole and the connection between the pole and the pole ear.

[0035] Principle and advantages of use: When fixing the battery, place the battery horizontally and push it to the clamping groove 704 of the clamping block 703 at the upper end of the base 501, then use the first drive motor 701 to operate so that the output end of the first drive motor 701 drives the first bidirectional screw rod 705 to rotate inside the assembly frame 702, and the rotation of the first bidirectional screw rod 705 allows the two clamping blocks 703 with the clamping groove 704 to slide close to each other to position and clamp batteries of various specifications, and then the output end of the first electric push rod 503 pushes the fixing plate 502 to slide on the base 501, which can conveniently adjust the position of the battery pole ear to just below the fixing mechanism 16 of the turntable 12, and the output end of the second electric push rod 10 pushes the turntable 12 The disk 12 moves down to approach the battery pole ear, and then the output end of the third drive motor 163 is used to drive the second bidirectional screw rod 162 to rotate inside the second mounting groove 164, so that the two moving blocks 167 connected to the external thread of the second bidirectional screw rod 162 can slide close to each other, and the lower end of the moving block 167 is connected to the tension sensor 165 with a clamping plate 166. The movement of the moving block 167 drives the plug 19 of the clamping plate 166 to be inserted into the ear eye of the pole ear, which can facilitate the rapid clamping and fixing of the battery pole ear. Finally, the second electric push rod 10 is controlled to retract and retract through the control module 3 so that the second electric push rod 10 cooperates with the tension sensor 165, which can facilitate the detection of the welding condition of the battery pole ear.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery cell tab pulling detection tool, characterized in that: include: A bottom plate (1), a moving mechanism (5) being fixed on the bottom plate (1), and a clamping mechanism (7) for clamping the battery core being arranged on the moving mechanism (5); A bracket (4) is arranged on the upper surface of the base plate (1); A second electric push rod (10) is arranged at the top end of the inner side of the bracket (4), and a fixed disk (11) is arranged at the lower end of the second electric push rod (10), a rotating disk (12) corresponding to the battery cell tab is rotatably arranged on the lower surface of the fixed disk (11), and a second driving motor (13) for driving the rotating disk (12) to rotate is arranged on the fixed disk (11); Wherein, a fixing mechanism (16) is provided on the lower surface of the rotating disk (12) for cooperating with the pole tab of the battery cell during detection.

2. The battery cell tab pulling detection tool according to claim 1, characterized in that: The moving mechanism (5) comprises a base (501), the base (501) is fixed to the upper end of the base plate (1), the upper end of the base (501) is slidably connected to a fixed plate (502), a first electric push rod (503) is fixed to the upper end of the base plate (1), an output end of the first electric push rod (503) is fixed to the back side of the fixed plate (502), and the clamping mechanism (7) is fixed to the upper end of the fixed plate (502).

3. A battery cell tab pulling detection tool according to claim 2, characterized in that: A guide rail (6) is symmetrically fixed to the upper end of the base (501), and the fixing plate (502) is slidably connected to the upper end of the base (501) via the guide rail (6).

4. The battery cell tab pulling and testing tool according to claim 2, characterized in that: The clamping mechanism (7) comprises an assembly frame (702), wherein the assembly frame (702) is fixed on the upper end of the fixing plate (502), the inner side of the assembly frame (702) is rotatably connected with a first bidirectional screw rod (705), the outer thread of the first bidirectional screw rod (705) is connected with a clamping block (703), one end of the clamping block (703) close to the first bidirectional screw rod (705) is slidably connected to the inner side of the assembly frame (702), a clamping groove (704) is provided on the front side of the clamping block (703), a first driving motor (701) is fixed on the right end of the assembly frame (702), and one end of the first bidirectional screw rod (705) is rotatably passed through the frame wall of the assembly frame (702) and is fixed to the output end of the first driving motor (701).

5. The battery cell tab pulling detection tool according to claim 4, characterized in that: A guide rod (8) is symmetrically fixed on the inner side of the assembly frame (702), one end of the clamping block (703) close to the first bidirectional screw rod (705) is slidably connected to the outer side of the guide rod (8), and a rubber layer (9) is bonded to one side of the inner wall of the clamping groove (704).

6. The battery cell tab pulling detection tool according to claim 1, characterized in that: A sleeve column (15) is symmetrically fixed to the upper end of the fixed plate (11), a sleeve tube (14) is fixed to the inner side of the bracket (4), and the upper end of the sleeve column (15) is slidably connected to the inner side of the sleeve tube (14).

7. The battery cell tab pulling detection tool according to claim 1, characterized in that: The fixing mechanism (16) comprises a first mounting groove (161) and a second mounting groove (164), wherein the first mounting groove (161) and the second mounting groove (164) are both arranged at the lower end of the turntable (12), a third driving motor (163) is fixed to the inner side of the first mounting groove (161), a second bidirectional screw rod (162) is rotatably connected to the inner side of the second mounting groove (164), one end of the second bidirectional screw rod (162) is rotatably extended into the inner side of the first mounting groove (161) and is fixed to the output end of the third driving motor (163), an external thread of the second bidirectional screw rod (162) is connected to a moving block (167), the moving block (167) is slidably connected to the inner side of the second mounting groove (164), a tension sensor (165) is fixed to the lower end of the moving block (167), a clamping plate (166) is fixed to the sensing end of the tension sensor (165), and a plug post (19) is fixed to the opposite side of the clamping plate (166).

8. The battery cell tab pulling and testing tool according to claim 7, characterized in that: A guide groove (17) is symmetrically provided on the inner side of the second mounting groove (164); the moving block (167) is slidably connected to the inner side of the second mounting groove (164) via the guide groove (17); and a camera (18) is fixed to the sensing end of the tension sensor (165).

9. The battery cell tab pulling and testing tool according to claim 1, characterized in that: A control module (3) is installed on the upper end of the base plate (1) via a support rod, and a display screen (2) is fixedly installed on the front of the control module (3).

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