CN219320467U

CN219320467U - Short circuit detection device after welding of lithium battery cap

Info

Publication number: CN219320467U
Application number: CN202223319398.4U
Authority: CN
Inventors: 张恒; 邵银; 王东
Original assignee: Gotion High Tech Co Ltd
Current assignee: Gotion High Tech Co Ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-07-07
Anticipated expiration: 2032-12-09

Abstract

The utility model discloses a short circuit detection device after welding of lithium battery caps, which comprises a frame body, wherein a loading mechanism for supporting a lithium battery, a conveying mechanism for conveying movement of the lithium battery, a clamping mechanism for clamping the lithium battery and a detection mechanism for detecting polarity of the lithium battery are arranged on the frame body; the conveying mechanism is arranged below the lithium battery and is rotationally connected with the loading mechanism, the clamping mechanism is arranged above the lithium battery and can move up and down above the lithium battery, the detecting mechanism is arranged on one side of the clamping mechanism, and the detecting end is abutted with an electrode of the lithium battery clamped by the clamping mechanism; the short circuit detection device improves the corresponding working efficiency, and avoids dangerous accidents caused by manual touch.

Description

Short circuit detection device after welding of lithium battery cap

Technical Field

The utility model relates to the technical field of lithium battery preparation, in particular to a short circuit detection device after welding of lithium battery caps.

Background

The lithium battery is widely applied to the fields of electronics, communication, aerospace, electric energy automobiles and the like due to the excellent electrochemical performance, the demand for the battery is increasing, in the production of columnar lithium batteries, a lithium battery cap is welded with a battery core of the lithium battery, in order to ensure the quality of the lithium battery and whether the lithium battery is qualified, short circuit detection is required to be carried out on the lithium battery after the welding cap, manual detection is carried out by using corresponding electrode lug probes by using the traditional method, the working efficiency is low, and safety accidents are easy to occur.

Disclosure of Invention

Based on the technical problems in the background art, the utility model provides the device for detecting the short circuit after welding the lithium battery cap, which improves the corresponding working efficiency and avoids dangerous accidents caused by manual touch.

The utility model provides a short circuit detection device after welding of a lithium battery cap, which comprises a frame body, wherein a loading mechanism for supporting a lithium battery, a conveying mechanism for conveying movement of the lithium battery, a clamping mechanism for clamping the lithium battery and a detection mechanism for detecting polarity of the lithium battery are arranged on the frame body; the conveying mechanism is arranged below the lithium battery and is rotationally connected with the loading mechanism, the clamping mechanism is arranged above the lithium battery and can move up and down above the lithium battery, and the detection mechanism is arranged on one side of the clamping mechanism and the detection end is abutted against an electrode of the lithium battery clamped by the clamping mechanism.

Further, the loading mechanism comprises a placement plate fixed on the frame body, the two placement plates are oppositely arranged, and the lithium battery is placed on the two placement plates.

Further, the two placing plates are provided with placing grooves on one surface contacted with the lithium battery, and the placing grooves are sequentially arranged.

Further, conveying mechanism includes bearing frame, rotating assembly and is used for driving rotating assembly pivoted actuating mechanism, and the bearing frame sets up in two places the space that the board medial surface formed, and actuating mechanism is fixed in one of them and places the board lateral surface, and one of them rotating assembly's one end is connected with bearing frame rotation, and the other end is connected with adjacent actuating mechanism output.

Further, the rotating assembly comprises a guide rod, a movable plate and a rotating rod, one end of the guide rod is rotationally connected with the bearing frame, the other end of the guide rod is connected with one end of the movable plate, one end of the rotating rod is connected with the other end of the movable plate, and the other end of the rotating rod penetrates through the placing plate to be connected with the driving mechanism.

Further, the driving mechanism comprises a first motor, a driving wheel and a driven wheel, the first motor is fixed on the placing plate, the output end of the first motor is sleeved with the driving wheel, and the driving wheel is sleeved on a rotating rod penetrating through the placing plate.

Further, fixture includes locating plate, first cylinder, second motor and clamping assembly, and the locating plate is fixed in on the support body, and first cylinder is fixed in on the locating plate, and the flexible end of first cylinder passes locating plate and clamping assembly fixed connection, and clamping assembly's clamping end sets up in the top of the last lithium cell of loading mechanism, and the output and the clamping assembly of second motor are connected.

Further, the clamping assembly comprises a clamping plate, movable gears, a rotating shaft and clamping jaws, wherein the clamping plate is fixedly connected with the output end of the first air cylinder, the two movable gears are meshed, one rotating shaft sequentially penetrates through one clamping jaw, one movable gear and the clamping plate to be rotationally connected, and the other rotating shaft sequentially penetrates through the other clamping jaw, the other movable gear and the clamping plate to be connected with the output end of the second motor.

Further, detection mechanism includes pick-up plate, second cylinder and detection probe, and the pick-up plate is fixed in on the locating plate, and the second cylinder is fixed in on the pick-up plate, and the output of second cylinder passes pick-up plate and detection probe fixed connection.

Further, the frame body is further provided with a storage tank for storing lithium batteries, a guide table for guiding movement of the detected lithium batteries and a collection box for collecting the detected lithium batteries, the storage tank is arranged at the starting position of the loading mechanism, the collection box is arranged at the ending position of the loading mechanism, one end of the guide table is connected with the ending position of the loading mechanism, and the other end of the guide table extends into the collection box.

The short circuit detection device after welding the lithium battery cap has the advantages that: according to the short circuit detection device after welding the lithium battery cap, the cylindrical lithium battery is placed in the loading mechanism, the lithium battery is driven to move forwards through the conveying mechanism, the lithium battery is clamped through the clamping mechanism by controlling the movement intermittence of the lithium battery, and then the lithium battery is driven to the detection end of the detection mechanism for short circuit detection; the arrangement of the placement groove can limit the lithium battery to a certain extent, so that the defect that polarity detection is affected due to the fact that the lithium battery is inclined on the placement plate is avoided, and the detection efficiency is improved; the length direction of bearing frame is parallel with the length direction of placing the board for lithium cell is to the next position motion of placing the board under the transport of bearing frame, prevents that lithium cell from moving to the position department of deviating from and placing the board, has improved lithium cell's transport stability and detection accuracy, has realized the gradual detection of batch lithium cell, has improved work efficiency.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a transport mechanism;

fig. 3 is an enlarged schematic view of the structure at a in fig. 2.

FIG. 4 is a schematic view of a clamping mechanism;

FIG. 5 is a schematic diagram of the structure of the detection mechanism;

FIG. 6 is a schematic cross-sectional view of a clamping assembly;

the device comprises a 1-frame body, a 2-loading mechanism, a 3-conveying mechanism, a 4-clamping mechanism, a 5-detecting mechanism, a 6-storage tank, a 7-guide table, an 8-collecting box, a 21-placing plate, a 22-placing tank, a 31-supporting frame, a 32-rotating component, a 33-driving mechanism, a 321-guide rod, a 322-movable plate, a 323-rotating rod, a 331-first motor, a 332-driving wheel, a 333-driven wheel, a 41-positioning plate, a 42-first cylinder, a 43-second motor, a 44-clamping component, a 45-positioning rod, a 51-detecting plate, a 52-second cylinder, a 53-detecting probe, a 441-clamping plate, a 442-movable gear, a 443-rotating shaft and 444-clamping jaw.

Detailed Description

In the following detailed description of the present utility model, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.

As shown in fig. 1 to 6, the device for detecting a short circuit after welding a lithium battery cap provided by the utility model comprises a frame body 1, wherein a loading mechanism 2 for supporting a lithium battery, a conveying mechanism 3 for conveying movement of the lithium battery, a clamping mechanism 4 for clamping the lithium battery and a detecting mechanism 5 for detecting polarity of the lithium battery are arranged on the frame body 1; the conveying mechanism 3 is arranged below the lithium battery and is rotationally connected with the loading mechanism 2, the clamping mechanism 4 is arranged above the lithium battery and can move up and down above the lithium battery, and the detecting mechanism 5 is arranged on one side of the clamping mechanism 4 and the detecting end is abutted with an electrode of the lithium battery clamped by the clamping mechanism 4.

Through placing cylindricality lithium cell in loading mechanism 2, drive the lithium cell through conveying mechanism 3 and move forward, through the intermittent type that control lithium cell removed, grasp the lithium cell through fixture 4, then drive the lithium cell and carry out short circuit detection to the detection end of detection mechanism 5, this mode does not need artifical manual detection, has improved corresponding work efficiency, and has avoided the dangerous accident that the staff touches and lead to.

In the present embodiment, the loading mechanism 2 includes the placement plates 21 fixed to the frame body 1, the two placement plates 21 are disposed opposite to each other, and the lithium battery is placed on the two placement plates 21. The two placing plates 21 are provided with placing grooves 22 on one surface contacted with the lithium battery, and the placing grooves 22 are sequentially arranged. The setting of standing groove 22 can carry out the spacing of certain degree for the lithium cell, avoids the lithium cell to appear askew and influence polarity detection's defect on placing plate 211, has improved detection efficiency.

In this embodiment, the conveying mechanism 3 includes a supporting frame 31, a rotating assembly 32 and a driving mechanism 33 for driving the rotating assembly 32 to rotate, the supporting frame 31 is disposed in a space formed by inner sides of two placement boards 21, the driving mechanism 33 is fixed on an outer side of one of the placement boards 21, one end of one rotating assembly 32 is rotationally connected with the supporting frame 31, and the other end is connected with an output end of an adjacent driving mechanism 33.

The rotating assemblies 32 are arranged on two opposite sides of the bearing frame 31, one rotating assembly 32 is connected with the driving mechanism 33 as an active driving, the other rotating assembly 32 is respectively connected with the placing plate 211 and the bearing frame 31 through bearing seats as a passive driving, and the two rotating assemblies 32 are respectively arranged between the bearing frame 31 and the placing plate 211.

The length direction of the supporting frame 31 is parallel to the length direction of the placement plate 21, so that the lithium battery moves to the next position of the placement plate 211 under the conveying of the supporting frame 31, the lithium battery is prevented from moving to the position deviated from the placement plate 211, and the conveying stability and the detection accuracy of the lithium battery are improved.

Specifically, the rotating assembly 32 includes a guide rod 321, a movable plate 322 and a rotating rod 323, one end of the guide rod 321 is rotatably connected with the supporting frame 31, the other end is connected with one end of the movable plate 322, one end of the rotating rod 323 is connected with the other end of the movable plate 322, the other end passes through the placing plate 21 and is connected with the driving mechanism 33, the driving mechanism 33 includes a first motor 331, a driving wheel 332 and a driven wheel 333, the first motor 331 is fixed on the placing plate 21, the output end of the first motor 331 is sleeved with the driving wheel 332, and the driving wheel 332 is sleeved on the rotating rod 323 passing through the placing plate 21.

The guide rod 321, the movable plate 322 and the rotary rod 323 form a similar connecting rod mechanism, a fixed connection relation between the guide rod 321, the movable plate 322 and the rotary rod 323, a rotary connection relation between the rotary rod 323 and the placing plate 21 and a rotary connection relation between the guide rod 321 and the bearing frame 31 are formed, one rotary rod 323 rotates under the driving of the first motor 331 to drive the guide rod 321 and the movable plate 322 to rotate, so that the bearing frame 31 moves eccentrically up and down, the bearing frame 31 moves upwards to drive the lithium battery on the current placing plate 211 to move forwards by one placing groove 22, wherein the bearing groove is formed in the bearing frame 31 and is similar to the placing groove 22, so that the lithium battery does not fall down in China along with the movement of the bearing frame 31, the gradual detection of batch lithium batteries is realized, and the working efficiency is improved. The support frame 31 is stable to the supporting movement of the lithium battery.

In this embodiment, the clamping mechanism 4 includes a positioning plate 41, a first air cylinder 42, a second motor 43 and a clamping assembly 44, the positioning plate 41 is fixed on the frame body 1, the first air cylinder 42 is fixed on the positioning plate 41, a telescopic end of the first air cylinder 42 passes through the positioning plate 41 and is fixedly connected with the clamping assembly 44, a clamping end of the clamping assembly 44 is arranged above a lithium battery on the loading mechanism 2, and an output end of the second motor 43 is connected with the clamping assembly 44.

The positioning plate 41 can be fixed through at least two positioning rods 45, the positioning rods 45 are fixed on the frame body 1, the clamping assembly 44 comprises a clamping plate 441, movable gears 442, rotating shafts 443 and clamping jaws 444, the clamping plate 441 is fixedly connected with the output end of the first air cylinder 42, the two movable gears 442 are meshed, the two clamping jaws 444 are symmetrically arranged, one rotating shaft 443 sequentially penetrates through one clamping jaw 444 and one movable gear 442 to be rotationally connected with the clamping plate 441, and the other rotating shaft 443 sequentially penetrates through the other clamping jaw 444 and the other movable gear 442 and the clamping plate 441 to be connected with the output end of the second motor 43; the second motor 43 drives one of the movable gears 442 to rotate, drives the other movable gear 442 in meshed connection with the one movable gear 442 to rotate, and the rotation directions of the two movable gears 442 are opposite, so that the two clamping jaws 444 are mutually unfolded or folded, thereby facilitating the clamping and fixing or releasing of the lithium battery.

In the present embodiment, the detection mechanism 5 includes a detection plate 51, a second cylinder 52 and a detection probe 53, the detection plate 51 is fixed on the positioning plate 41, the second cylinder 52 is fixed on the detection plate 51, and an output end of the second cylinder 52 passes through the detection plate 51 and is fixedly connected with the detection probe 53; wherein detection mechanism 5 can set up two, and two detection mechanism 5 set up respectively in the positive pole of lithium cell, one side of negative pole, realize the polarity detection of lithium cell positive and negative pole respectively, and detection probe 53 is through the flexible motion of second cylinder 52 drive in addition for detection probe 53 can detect the lithium cell polarity of different specifications, has improved the application scope that lithium cell polarity detected.

In this embodiment, the frame body 1 is further provided with a storage tank 6 for storing lithium batteries, a guiding table 7 for guiding movement of the detected lithium batteries, and a collecting box 8 for collecting the detected lithium batteries, the storage tank 6 is disposed at a starting position of the loading mechanism 2, the collecting box 8 is disposed at an ending position of the loading mechanism 2, one end of the guiding table 7 is connected with the ending position of the loading mechanism 2, and the other end extends into the collecting box 8.

The inner wall layer of the collecting box 8 is a rubber layer, the two side surfaces of the guide table 7 are provided with protective baffles, the distance between the protective baffles at two sides is larger than the distance between the two placing plates 211, the protective baffles can prevent the lithium battery from rolling out of the guide table 7, the bottom end of the guide table 7 is close to one side wall of the collecting box 8 along an arc turning, namely, the bottom end of the collecting box 8 is perpendicular to the guide table 7 and is obliquely arranged.

The effect of bin 6 is convenient for place a plurality of lithium cell that have finished welding in advance, and the effect of guide table 7 is convenient for be directed into guide table 7 with the lithium cell through bearing frame 31 end, then roll into along guide table 7 inclined plane and collect in the box 8, collect box 8 inner wall layer and be the rubber layer, can prevent its certain buffering effect to the lithium cell, prevent its hard collision harm, be the slope setting through collection box 8 bottom perpendicular to guide table 7 department simultaneously, can make the lithium cell not concentrate in guide table 7 bottom department.

The working process comprises the following steps: during detection, a welded lithium battery can be placed in the storage tank 6 to be detected, then the lithium battery is placed in the storage tank 22 at the top end of the placement plate 21, the first motor 331 is started to drive the driven wheel 333 to rotate through the driving wheel 332, the diameter of the driving wheel 332 is smaller than that of the driven wheel 333, the driven wheel 333 rotates to drive the rotary rod 323 to rotate, so that the movable plate 322 moves circumferentially around the rotary rod 323, the rotary rod 323 drives the bearing frame 31 to swing reciprocally through the guide rod 321, the bearing frame 31 drives the lithium battery on the placement plate 21 to gradually move to the next storage tank 22, when the lithium battery reaches the position below the clamping jaw 444, the first air cylinder 42 is started to drive the clamping jaw 444 to move downwards, the two movable gears 442 are driven to rotate relatively through the second motor 43, so that the clamping jaw 444 clamps and fixes the lithium battery, then the first air cylinder 42 drives the lithium battery to rise to the position of the detection probe 53, whether the detected lithium battery is short-circuited or not is detected through the second air cylinder 52 driving the detection probe 53, the detected lithium battery is placed on the placement plate 21 again through the bearing frame 444, then the bearing frame 31 drives the lithium battery to move forward, and the lithium battery 31 is guided to the collection box 8 to enter the collection box 8.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The short circuit detection device after welding the lithium battery cap comprises a frame body (1), and is characterized in that a loading mechanism (2) for supporting a lithium battery, a conveying mechanism (3) for conveying movement of the lithium battery, a clamping mechanism (4) for clamping the lithium battery and a detection mechanism (5) for detecting polarity of the lithium battery are arranged on the frame body (1);

the conveying mechanism (3) is arranged below the lithium battery and is rotationally connected with the loading mechanism (2), the clamping mechanism (4) is arranged above the lithium battery and can move up and down above the lithium battery, and the detecting mechanism (5) is arranged on one side of the clamping mechanism (4) and the detecting end is abutted with an electrode of the lithium battery clamped by the clamping mechanism (4).

2. The device for detecting the short circuit after welding of the lithium battery cap according to claim 1, wherein the loading mechanism (2) comprises a placement plate (21) fixed on the frame body (1), the two placement plates (21) are oppositely arranged, and the lithium battery is placed on the two placement plates (21).

3. The post-welding short circuit detection device for a lithium battery cap according to claim 2, wherein two placement plates (21) are provided with placement grooves (22) on one surface in contact with a lithium battery, and a plurality of placement grooves (22) are sequentially arranged.

4. The device for detecting the short circuit of the lithium battery cap after welding according to claim 2, wherein the conveying mechanism (3) comprises a bearing frame (31), a rotating assembly (32) and a driving mechanism (33) for driving the rotating assembly (32) to rotate, the bearing frame (31) is arranged in a space formed by the inner sides of the two placing plates (21), the driving mechanism (33) is fixed on the outer side of one of the placing plates (21), one end of one rotating assembly (32) is rotationally connected with the bearing frame (31), and the other end is connected with the output end of the adjacent driving mechanism (33).

5. The device for detecting a short circuit after welding of a lithium battery cap according to claim 4, wherein the rotating assembly (32) comprises a guide rod (321), a movable plate (322) and a rotating rod (323), one end of the guide rod (321) is rotationally connected with the supporting frame (31), the other end of the guide rod is connected with one end of the movable plate (322), one end of the rotating rod (323) is connected with the other end of the movable plate (322), and the other end of the rotating rod penetrates through the placing plate (21) to be connected with the driving mechanism (33).

6. The device for detecting a short circuit after welding of a lithium battery cap according to claim 5, wherein the driving mechanism (33) comprises a first motor (331), a driving wheel (332) and a driven wheel (333), the first motor (331) is fixed on the placing plate (21), the output end of the first motor (331) is sleeved with the driving wheel (332), and the driving wheel (332) is sleeved on a rotating rod (323) penetrating through the placing plate (21).

7. The device for detecting the short circuit after welding of the lithium battery cap according to claim 5, wherein the clamping mechanism (4) comprises a positioning plate (41), a first air cylinder (42), a second motor (43) and a clamping assembly (44), the positioning plate (41) is fixed on the frame body (1), the first air cylinder (42) is fixed on the positioning plate (41), the telescopic end of the first air cylinder (42) penetrates through the positioning plate (41) to be fixedly connected with the clamping assembly (44), the clamping end of the clamping assembly (44) is arranged above a lithium battery on the loading mechanism (2), and the output end of the second motor (43) is connected with the clamping assembly (44).

8. The device for detecting a short circuit after welding of a lithium battery cap according to claim 7, wherein the clamping assembly (44) comprises a clamping plate (441), movable gears (442), a rotating shaft (443) and clamping jaws (444), the clamping plate (441) is fixedly connected with the output end of the first cylinder (42), the two movable gears (442) are meshed, the two clamping jaws (444) are symmetrically arranged, one rotating shaft (443) sequentially penetrates through one clamping jaw (444), one movable gear (442) and the clamping plate (441) to be rotationally connected, and the other rotating shaft (443) sequentially penetrates through the other clamping jaw (444), the other movable gear (442), and the clamping plate (441) and the output end of the second motor (43) to be connected.

9. The post-welding short circuit detection device for the lithium battery cap according to claim 7, wherein the detection mechanism (5) comprises a detection plate (51), a second air cylinder (52) and a detection probe (53), the detection plate (51) is fixed on the positioning plate (41), the second air cylinder (52) is fixed on the detection plate (51), and an output end of the second air cylinder (52) penetrates through the detection plate (51) and is fixedly connected with the detection probe (53).

10. The device for detecting the short circuit after welding of the lithium battery cap according to any one of claims 1 to 9, wherein the frame body (1) is further provided with a storage tank (6) for storing lithium batteries, a guide table (7) for guiding movement of the detected lithium batteries and a collection box (8) for collecting the detected lithium batteries, the storage tank (6) is arranged at the starting position of the loading mechanism (2), the collection box (8) is arranged at the ending position of the loading mechanism (2), one end of the guide table (7) is connected with the ending position of the loading mechanism (2), and the other end of the guide table extends into the collection box (8).