A lithium battery cap pressure welding device

Abstract

The present invention provides a lithium battery cap pressure welding device, which relates to the technical field of lithium battery cap processing, and includes: a cap pressure welding seat. A pressure welding mechanism is installed above the rear edge of the cap pressure welding seat through a bracket. A motor placement cavity is opened at the center of the upper surface of the cap pressure welding seat, and a circulating servo motor is fixedly connected inside the motor placement cavity. It can be applicable to circular caps and pole columns of different specifications and sizes, and has an adaptive adjustment mechanism. For the assembly of lithium battery caps and pole columns of different product specifications, there is no need to re-adjust the equipment tooling and positioning groove structure, which reduces the production cost and improves the production efficiency, and solves the problem that the existing lithium battery cap pressure welding device has poor adaptability to lithium battery caps of different specifications. Therefore, for the assembly of lithium battery caps and pole columns of different product specifications, it is necessary to re-adjust the equipment tooling and positioning groove structure, which increases the production cost and reduces the production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery cap processing, and particularly to a resistance welding device for lithium battery caps. Background Art

[0002] The lithium battery cap is a core component to ensure the safety and sealing performance of the battery. The welding quality between the cap and the battery pole not only directly affects the internal sealing performance of the battery to prevent electrolyte leakage, but also profoundly impacts the electrical performance, cycle life, and overall safety of the battery. The cap and the pole of the battery are usually assembled by precise resistance welding technology to achieve the combination between the cap and the pole.

[0003] For traditional resistance welding assembly devices for caps and battery poles, it is necessary to select special positioning grooves or assembly tooling according to the specifications of the battery caps and battery poles to ensure high coaxiality during resistance welding and reduce resistance welding errors. However, the existing resistance welding devices for lithium battery caps have poor adaptability to lithium battery caps of different specifications. Therefore, for the assembly of lithium battery caps and poles of different product specifications, it is necessary to re-adjust the equipment tooling and positioning groove structure, which increases the production cost and reduces the production efficiency. Summary of the Invention

[0004] The present invention relates to a resistance welding device for lithium battery caps, which solves the problem that for traditional resistance welding assembly devices for caps and battery poles, it is necessary to select special positioning grooves or assembly tooling according to the specifications of the battery caps and battery poles to ensure high coaxiality during resistance welding and reduce resistance welding errors. However, the existing resistance welding devices for lithium battery caps have poor adaptability to lithium battery caps of different specifications. Therefore, for the assembly of lithium battery caps and poles of different product specifications, it is necessary to re-adjust the equipment tooling and positioning groove structure, which increases the production cost and reduces the production efficiency.

[0005] The present invention provides a lithium battery cap pressure welding device, which specifically includes: a cap pressure welding seat. A pressure welding mechanism is installed above the rear edge of the cap pressure welding seat through a bracket. A motor placement cavity is opened at the center of the upper surface of the cap pressure welding seat. A circulating servo motor is fixedly connected inside the motor placement cavity. The upper end of the rotating shaft of the circulating servo motor is fixedly connected with a rotating pressure welding table. A positioning adjustment ring is fixedly connected to the upper surface of the cap pressure welding seat. A cap placement opening is opened on the rotating pressure welding table. A unit support plate is fixedly connected inside the cap placement opening. Four support plate chutes are opened on the unit support plate. A support plate guide rod is vertically welded to the center of the lower surface of the unit support plate. A trigger push block, a cap centering push block, and a pole centering push block are slidably sleeved on the support plate guide rod. The cap centering push block is located above the trigger push block. A settlement tension spring is fixedly connected between the trigger push block and the cap centering push block. The pole centering push block is located above the cap centering push block. A compensation tension spring is fixedly connected between the cap centering push block and the pole centering push block. Two cap centering connecting rods are hinged to the cap centering push block. The upper ends of the cap centering connecting rods are hinged to cap centering sliders. The two cap centering sliders are respectively slidably connected in the two support plate chutes. A cap positioning clamping plate is welded above the cap centering slider.

[0006] Further, two pole centering connecting rods are hinged to the pole centering push block. The upper ends of the pole centering connecting rods are hinged to pole centering sliders. The two pole centering sliders are respectively slidably connected in the two support plate chutes. A pole positioning clamping plate is welded to the upper ends of the pole centering sliders.

[0007] Further, a vision detection mechanism is installed above the side of the cap pressure welding seat through a bracket.

[0008] Further, the positioning adjustment ring is a circular plate body, and the positioning adjustment ring is coaxial with the rotating pressure welding table.

[0009] Further, the positioning adjustment ring is divided into three parts: a front arc plate, an inclined arc plate, and a rear arc plate. The front arc plate and the rear arc plate are parallel to each other, and the front arc plate is higher than the rear arc plate.

[0010] Further, the front arc plate is located in the front half of the positioning adjustment ring, the rear arc plate is located in the rear half of the positioning adjustment ring, and the front arc plate and the rear arc plate are connected by an inclined inclined arc plate.

[0011] Further, there are a total of sixteen cap placement openings. The sixteen cap placement openings are grouped in pairs to form eight cap placement groups. The eight cap placement groups are radially distributed and opened on the rotating pressure welding table.

[0012] Further, guide rod protrusions are opened on the outer surface of the support plate guide rod. Sliding grooves for sliding connection with the guide rod protrusions are opened on the hole walls of the central guide holes of the trigger push block, the cap centering push block, and the pole centering push block.

[0013] Further, a lifting push wheel is rotatably connected to the bottom of the triggering push block through a bracket and a bearing. The lifting push wheel is made of a magnet and is in rolling connection with the lower surface of the positioning and adjusting ring, and a magnetic attraction connection is formed between the lifting push wheel and the lower surface of the positioning and adjusting ring.

[0014] Further, the four pallet chutes in the unit pallet are distributed in a "cross" shape. The two cap centering sliders are respectively slidably connected in two opposite pallet chutes among the four pallet chutes. The two cap alignment clamping plates are in a "V" shape structure, and the opening of the cap alignment clamping plate faces the center direction of the unit pallet.

[0015] Further, the two pole column centering sliders are respectively slidably connected in the other two pallet chutes. The two pole column alignment clamping plates are in a "V" shape structure, and the opening of the pole column alignment clamping plate faces the center direction of the unit pallet.

[0016] The present invention provides a lithium battery cap resistance welding device, which has the following beneficial effects:

[0017] In the present invention, the pole column and the cap resistance welding table for lithium battery caps are improved, and a mechanical auxiliary positioning structure is built in. An auxiliary alignment structure is provided in the unit pallet, so that after the cap and the pole column are placed above the unit pallet, they can be automatically aligned to the center position of the unit pallet, keeping the cap and the pole column coaxial before welding, and ensuring high precision and high quality of the product after welding.

[0018] The present invention has the automatic centering function for the pole column and the cap, enabling the pole column and the cap placed inside the cap placement opening to be automatically centered and coaxial. Moreover, this function can be applied to circular caps and pole columns of different specifications and sizes, and has an adaptive adjustment mechanism. For the assembly of lithium battery caps and pole columns with different product specifications, there is no need to re-adjust the equipment tooling and the positioning groove structure, reducing the production cost and improving the production efficiency.

[0019] The automatic centering function of the pole column and the cap in the present invention is realized through the cooperation of a series of transmission mechanisms. There is no need to set components such as an electric push cylinder and an electromagnetic push cylinder in the rotary resistance welding table. The manufacturing and operation costs of the equipment are low, and the maintenance and operation are convenient. It can automatically complete the centering and fixing of the two when the cap and the pole column approach the resistance welding mechanism, and automatically release the clamping of the workpiece after the resistance welding is completed, facilitating the feeding and discharging by a manipulator or manually. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0021] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0022] In the drawings:

[0023] Figure 1 A schematic diagram showing the overall structure of the present application is shown;

[0024] Figure 2 A schematic diagram showing the structure of the bottom of the present application is shown;

[0025] Figure 3 A schematic diagram showing the structure of the positioning adjustment ring of the present application is shown;

[0026] Figure 4 A schematic diagram showing the structure of the rotary pressure welding table of the present application is shown;

[0027] Figure 5 A schematic diagram showing the structure of the bottom of the rotary pressure welding table of the present application is shown;

[0028] Figure 6 A schematic diagram showing the structure when the cap alignment clamping plate and the pole alignment clamping plate of the present application do not clamp the workpiece is shown;

[0029] Figure 7 A schematic diagram showing the structure when the cap alignment clamping plate and the pole alignment clamping plate of the present application clamp the workpiece is shown;

[0030] Figure 8 Shows the present application Figure 6 The structure diagram of the bottom;

[0031] Figure 9 Shows the present application Figure 7 The structure diagram of the bottom;

[0032] Figure 10 Shows the present application Figure 7 The front view structure diagram;

[0033] Figure 11 A schematic diagram showing the clamping structure of the present application is shown;

[0034] Figure 12 Shows the present application's Figure 5 The partial enlarged structure diagram at A;

[0035] Figure 13 Shows the present application's Figure 5 The partial enlarged structure diagram at B.

[0036] List of reference numerals

[0037] 1. Cap pressure welding seat; 101. Motor placement cavity; 2. Pressure welding mechanism; 3. Vision inspection mechanism; 4. Circulating servo motor; 5. Positioning adjustment ring; 501. Front arc plate; 502. Inclined arc plate; 503. Rear arc plate; 6. Rotary pressure welding table; 601. Cap placement opening; 602. Unit pallet; 603. Pallet chute; 604. Pallet guide rod; 605. Guide rod rib; 7. Trigger push block; 701. Lifting push wheel; 702. Settlement tension spring; 8. Cap centering push block; 801. Cap centering connecting rod; 802. Cap centering slider; 9. Pole centering push block; 901. Pole centering connecting rod; 902. Pole centering slider; 903. Compensation tension spring; 10. Cap alignment clamping plate; 11. Pole alignment clamping plate. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Embodiment 1: Please refer to Figures 1 to 13 :

[0040] The present invention provides a lithium battery cap pressure welding device, including: a cap pressure welding base 1, a pressure welding mechanism 2 is installed above the rear edge of the cap pressure welding base 1 through a bracket, a motor placement cavity 101 is opened at the center of the upper surface of the cap pressure welding base 1, a circulating servo motor 4 is fixedly connected inside the motor placement cavity 101, the upper end of the rotating shaft of the circulating servo motor 4 is fixedly connected with a rotating pressure welding table 6, a positioning adjustment ring 5 is fixedly connected to the upper surface of the cap pressure welding base 1, a cap placement opening 601 is opened on the rotating pressure welding table 6, a unit support plate 602 is fixedly connected inside the cap placement opening 601, four support plate chutes 603 are opened on the unit support plate 602, a support plate guide rod 604 is vertically welded to the center of the lower surface of the unit support plate 602, a trigger push block 7, a cap centering push block 8 and a pole centering push block 9 are slidably sleeved on the support plate guide rod 604, the cap centering push block 8 is located above the trigger push block 7, a settlement tension spring 702 is fixedly connected between the trigger push block 7 and the cap centering push block 8, the pole centering push block 9 is located above the cap centering push block 8, a compensation tension spring 903 is fixedly connected between the cap centering push block 8 and the pole centering push block 9, two cap centering connecting rods 801 are hinged to the cap centering push block 8, the upper ends of the cap centering connecting rods 801 are hinged to cap centering sliders 802, the two cap centering sliders 802 are respectively slidably connected in the two support plate chutes 603, a cap centering clamping plate 10 is welded above the cap centering slider 802, two pole centering connecting rods 901 are hinged to the pole centering push block 9, the upper ends of the pole centering connecting rods 901 are hinged to pole centering sliders 902, the two pole centering sliders 902 are respectively slidably connected in the two support plate chutes 603, and a pole centering clamping plate 11 is fixedly connected to the upper end of the pole centering slider 902;Drive the rotary pressure welding table 6 to rotate counterclockwise through the circulating servo motor 4. The worker or the manipulator is located in front of the rotary pressure welding table 6. Place the lithium battery cap and the pole column inside the cap placement port 601 at the front position of the rotary pressure welding table 6, and slowly approach the pressure welding mechanism 2 as the rotary pressure welding table 6 rotates counterclockwise. In the unit pallet 602 located in front of the rotary pressure welding table 6, the compensation tension spring 903 and the settlement tension spring 702 are in a contracted state. The lifting push wheel 701 fits with the positioning adjustment ring 5 under the action of magnetic force. There is enough space between the two cap alignment clamping plates 10 and the two pole column alignment clamping plates 11, and the distance between the two cap alignment clamping plates 10 is greater than the distance between the two pole column alignment clamping plates 11. After placing the pole column and the cap, as the circulating servo motor 4 drives the rotary pressure welding table 6 to rotate under the pressure welding mechanism 2, the lifting push wheel 701 rolls through the inclined arc plate 502 and enters under the rear arc plate 503, pulling the trigger block 7 downward. The cap centering block 8 and the pole column centering block 9 move downward accordingly, and under the action of the cap centering connecting rod 801 and the pole column centering connecting rod 901, the cap centering slider 802 and the pole column centering slider 902 are pulled toward the middle, so that the two pole column alignment clamping plates 11 first fit with the edge of the pole column and push it toward the middle. The pole column is pushed to the center of the unit pallet 602 through the "V"-shaped pole column alignment clamping plate 11. At this time, the distance between the pole column alignment clamping plates 11 is fixed, and the pole column centering block 9 remains stationary. As the rotary pressure welding table 6 continues to rotate, the trigger block 7 is further pulled down. While the settlement tension spring 702 is stretched, a pulling force is applied to the cap centering block 8, causing the cap centering block 8 to continue to move downward and stretch the compensation tension spring 903. The cap centering slider 802 pulls the cap centering slider 802 toward the middle, making the cap alignment clamping plate 10 fit with the edge of the cap and pushing the cap to the center position of the unit pallet 602, so that the pole column and the cap are coaxial. The two metal wafers in the coaxial fitting state are pressure welded through the pressure welding mechanism 2, and the pressure welding of the pole column and the cap can be completed.;

[0041] In the embodiment of the present disclosure, a vision inspection mechanism 3 is installed on the upper side of the cap pressure welding seat 1 through a bracket. The vision inspection mechanism 3 is connected to a computer. Images are taken by the vision inspection mechanism 3 and transmitted to the computer, and the workpiece can be visually inspected; through the vision inspection mechanism 3, the centering accuracy and position accuracy of the battery cap and the battery pole column located inside the cap placement port 601 can be detected. If there are deviations such as inclination and flipping of the workpiece, they can be discovered and processed in time.

[0042] In the embodiment of the present disclosure, the positioning and adjusting ring 5 is a circular plate body made of iron material. The positioning and adjusting ring 5 is coaxial with the rotary welding table 6. The positioning and adjusting ring 5 is divided into three parts: the front arc plate 501, the inclined arc plate 502, and the rear arc plate 503. The front arc plate 501 and the rear arc plate 503 are parallel to each other, and the front arc plate 501 is higher than the rear arc plate 503. The front arc plate 501 is located in the front half of the positioning and adjusting ring 5, and the rear arc plate 503 is located in the rear half of the positioning and adjusting ring 5. The front arc plate 501 and the rear arc plate 503 are connected by the inclined inclined arc plate 502. The bottom of the trigger block 7 is rotatably connected with a lifting push wheel 701 through a bracket and a bearing. The lifting push wheel 701 is made of magnet. The lifting push wheel 701 is in rolling connection with the lower surface of the positioning and adjusting ring 5, and a magnetic attraction connection is formed between the lifting push wheel 701 and the lower surface of the positioning and adjusting ring 5. Through the rolling connection and magnetic attraction connection between the lifting push wheel 701 and the lower surface of the positioning and adjusting ring 5, when the trigger block 7 moves along the positioning and adjusting ring 5 driven by the rotation of the rotary welding table 6, when the lifting push wheel 701 is located in the part of the front arc plate 501, the settlement tension spring 702 and the compensation tension spring 903 are not stretched, and there is enough space between the two cap alignment clamping plates 10 and the two pole alignment clamping plates 11. The pole and the cap can be placed above the unit pallet 602 by a manipulator or manually, which is convenient for loading and unloading. As the rotary welding table 6 rotates, the lifting push wheel 701 enters the inclined arc plate 502. As the lifting push wheel 701 rolls on the lower surface of the inclined arc plate 502, the trigger block 7 is pulled downward, so that the cap centering block 8 and the pole centering block 9 move downward synchronously, and gradually control the cap alignment clamping plate 10 and the pole alignment clamping plate 11 to move towards the middle of the unit pallet 602, so as to align and fix the pole and the cap.

[0043] In the embodiment of the present disclosure, there are a total of sixteen cap placement openings 601. The sixteen cap placement openings 601 are grouped in pairs to form eight cap placement groups. The eight cap placement groups are radially distributed on the rotary welding table 6, and synchronous assembly of multiple groups of caps and poles can be achieved.

[0044] In the embodiment of the present disclosure, guide bar protrusions 605 are provided on the outer surface of the pallet guide bar 604, and sliding grooves for sliding connection with the guide bar protrusions 605 are provided on the inner walls of the central guide holes of the trigger block 7, the cap centering block 8, and the pole centering block 9, so as to achieve a guiding effect and keep the cap centering block 8 and the pole centering block 9 lifting vertically, avoiding unnecessary errors.

[0045] Embodiment 2. On the basis of Embodiment 1, four pallet chutes 603 in the unit pallet 602 are arranged in a cross shape. Two cap centering sliders 802 are respectively slidably connected in two opposite pallet chutes 603 among the four pallet chutes 603. The two cap alignment clamping plates 10 are in a "V" shape, and the opening of the cap alignment clamping plate 10 faces the center direction of the unit pallet 602. Two pole centering sliders 902 are respectively slidably connected in the other two pallet chutes 603. The two pole alignment clamping plates 11 are in a "V" shape, and the opening of the pole alignment clamping plate 11 faces the center direction of the unit pallet 602. The "V" - shaped cap alignment clamping plate 10 and pole alignment clamping plate 11 respectively clamp the cap located above and the pole located below. As the cap alignment clamping plate 10 and the pole alignment clamping plate 11 move towards the center direction of the unit pallet 602, their inner surfaces are attached to the outer edge of the circular metal sheet, and the circular metal sheet can be moved to the center of the unit pallet 602, so that circular metal sheets of different sizes and specifications are coaxially arranged, ensuring the coaxial welding of the poles and caps, and being applicable to the assembly of poles and caps of different specifications.

[0046] Working principle of this embodiment: First, the rotary pressure welding table 6 is driven by the circulating servo motor 4 to rotate counterclockwise. Workers or manipulators are located in front of the rotary pressure welding table 6. The lithium battery cap and pole are placed inside the cap placement port 601 at the front position of the rotary pressure welding table 6 and slowly approach the pressure welding mechanism 2 as the rotary pressure welding table 6 rotates counterclockwise. In the unit pallet 602 located in front of the rotary pressure welding table 6, the compensation tension spring 903 and the settlement tension spring 702 are in a contracted state. The lifting push wheel 701 fits with the positioning adjustment ring 5 under the action of magnetic force. There is enough space between the two cap alignment clamping plates 10 and the two pole alignment clamping plates 11, and the distance between the two cap alignment clamping plates 10 is greater than the distance between the two pole alignment clamping plates 11. After the pole and the cap are placed, as the circulating servo motor 4 drives the rotary pressure welding table 6 to rotate under the pressure welding mechanism 2, the lifting push wheel 701 rolls through the inclined arc plate 502 and enters under the rear end arc plate 503, pulling the trigger block 7 downward. The cap centering block 8 and the pole centering block 9 move downward accordingly, and under the action of the cap centering connecting rod 801 and the pole centering connecting rod 901, the cap centering slider 802 and the pole centering slider 902 are pulled toward the middle, so that the two pole alignment clamping plates 11 first fit with the edge of the pole and push it toward the middle. The pole is pushed to the center of the unit pallet 602 through the "V"-shaped pole alignment clamping plate 11. At this time, the distance between the pole alignment clamping plates 11 is fixed, and the pole centering block 9 remains stationary. As the rotary pressure welding table 6 continues to rotate, the trigger block 7 is continuously pulled downward. While the settlement tension spring 702 is stretched, it applies a pulling force to the cap centering block 8, causing the cap centering block 8 to continue to move downward and stretch the compensation tension spring 903. The cap centering slider 802 pulls the cap centering slider 802 toward the middle, making the cap alignment clamping plate 10 fit with the edge of the cap and pushing the cap to the center position of the unit pallet 602, so that the pole and the cap are coaxial. The two metal discs in the coaxial fitting state are pressure welded by the pressure welding mechanism 2, and the pressure welding of the pole and the cap can be completed. After the pressure welding is completed, as the rotary pressure welding table 6 continues to rotate counterclockwise, the lifting push wheel 701 under the unit pallet 602 with the cap finished product rolls through the inclined arc plate 502 and moves to a part of the front end arc plate 501. Under the magnetic attraction between the lifting push wheel 701 and the positioning adjustment ring 5, the trigger block 7 rises, the settlement tension spring 702 and the compensation tension spring 903 contract, and the cap centering block 8 and the pole centering block 9 move upward to reset, causing the cap alignment clamping plate 10 and the pole alignment clamping plate 11 to move outward, and the welded cap can be removed by manual or mechanical means.

[0047] In this article, the following points need to be noted:

[0048] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0049] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments may be combined with each other to obtain new embodiments.

[0050] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A lithium battery cap welding device, comprising: A cap pressure welding seat (1), wherein a pressure welding mechanism (2) is installed on the upper rear edge of the cap pressure welding seat (1) through a bracket, characterized in that a motor placement cavity (101) is provided at the center of the upper surface of the cap pressure welding seat (1), a circulating servo motor (4) is fixedly connected inside the motor placement cavity (101), a rotary pressure welding platform (6) is fixedly connected to the upper end of the rotating shaft of the circulating servo motor (4), a positioning adjustment ring (5) is fixedly connected to the upper surface of the cap pressure welding seat (1), a cap placement opening (601) is provided on the rotary pressure welding platform (6), a unit support plate (602) is fixedly connected inside the cap placement opening (601), and four support plate slide grooves (603) are provided on the unit support plate (602), A support plate guide rod (604) is vertically welded to the center of the lower surface of the unit support plate (602); a trigger push block (7), a cap centering push block (8) and a pole centering push block (9) are slidably sleeved on the support plate guide rod (604); a sinking tension spring (702) is fixedly connected between the trigger push block (7) and the cap centering push block (8); a compensation tension spring (903) is fixedly connected between the cap centering push block (8) and the pole centering push block (9); the cap centering push block (8) is hinged with two cap centering connecting rods (801); the upper end of the cap centering connecting rod (801) is hinged with a cap centering slider (802); the two cap centering sliders (802) are slidably connected in the two support plate slide grooves (603) respectively. A cap alignment clamp (10) is welded above the cap centering slider (802); the pole centering push block (9) is hinged with two pole centering connecting rods (901); the upper end of the pole centering connecting rod (901) is hinged with a pole centering slider (902); the two pole centering sliders (902) are respectively slidably connected in the two support plate slide grooves (603); the upper end of the pole centering slider (902) is welded with a pole alignment clamp (11); the positioning adjustment ring (5) is a circular plate body; the positioning adjustment ring (5) is coaxial with the rotary pressure welding table (6); the positioning adjustment ring (5) is divided into three parts: a front arc plate (501), a bevel arc plate (502), and a rear arc plate (503); the front arc plate (5 01), the rear end arc plate (503) are parallel to each other, and the front arc plate (501) is higher than the rear end arc plate (503), the front arc plate (501) is located at the front half of the positioning adjustment ring (5), and the rear end arc plate (503) is located at the rear half of the positioning adjustment ring (5), and the front arc plate (501) and the rear end arc plate (503) are connected by an inclined inclined arc plate (502); the bottom of the trigger push block (7) is rotatably connected to a lifting push wheel (701) through a bracket and a bearing, and the lifting push wheel (701) is made of a magnet, and the lifting push wheel (701) is rollingly connected to the lower surface of the positioning adjustment ring (5), and the lifting push wheel (701) and the lower surface of the positioning adjustment ring (5) form a magnetic connection.

2. A lithium battery cap pressure welding device according to claim 1, characterized in that: A visual inspection mechanism (3) is installed on the upper side of the cap pressure welding seat (1) via a bracket.

3. A lithium battery cap pressure welding device according to claim 1, characterized in that: The cap placement openings (601) are provided with sixteen in total, and the sixteen cap placement openings (601) are grouped in pairs to form eight cap placement groups, and the eight cap placement groups are radially distributed and opened on the rotary pressure welding table (6).

4. A lithium battery cap pressure welding device according to claim 1, characterized in that: The outer surface of the support plate guide rod (604) is provided with a guide rod convex strip (605), and the central guide hole walls of the trigger push block (7), the cap centering push block (8) and the pole centering push block (9) are all provided with a sliding groove slidably connected to the guide rod convex strip (605).

5. A lithium battery cap pressure welding device according to claim 1, characterized in that: The four tray slide grooves (603) in the unit tray (602) are arranged in a "cross" shape, and the two cap centering sliders (802) are respectively slidably connected in two of the four tray slide grooves (603) facing opposite directions. The two cap alignment clamps (10) are in a "V" shape, and the openings of the cap alignment clamps (10) face the center direction of the unit tray (602).

6. A lithium battery cap pressure welding device according to claim 5, characterized in that: The two pole centering sliders (902) are respectively slidably connected in the other two support plate sliding grooves (603), and the two pole alignment clamps (11) are in a "V"-shaped structure, with the openings of the pole alignment clamps (11) facing the center direction of the unit support plate (602).

Images