CN112692142B - A high-conductivity lithium battery contact sheet forming process - Google Patents

Abstract

The invention discloses a high-conductivity lithium battery contact sheet forming process, and relates to the technical field of lithium battery contact sheet production. Thin and easy to damage during stamping process. The high-conductivity lithium battery contact sheet forming process includes the following steps: the first step: the first conveying mechanism transports the contact sheet to the first punching table; the second step: the first air cylinder drives the first pressing plate to move downward, Finally, the first pressing plate is pressed on the top of the sheet; the third step: the second cylinder drives the lower die to punch upward; the fourth step: conveys the sheet to the second punching table through the conveying action of the first conveying mechanism and the second conveying mechanism ; Step 5: The third cylinder drives the upper die to punch down; Step 6: The stamping waste is conveyed through the third conveying mechanism, and the formed contact piece is conveyed to the next process through the fourth conveying mechanism.

Description

A high-conductivity lithium battery contact sheet forming process

technical field

The invention relates to the technical field of lithium battery contact sheet production, in particular to a high-conductivity lithium battery contact sheet forming process.

Background technique

Lithium battery is a kind of battery that uses lithium metal or lithium alloy as positive/negative electrode material and uses non-aqueous electrolyte solution, and has the characteristics of high conductivity, small size and light weight. With the development of science and technology, lithium batteries have become the mainstream. Contact sheet is an important part of lithium battery, also known as battery shrapnel, battery conductive sheet. Generally made of copper, iron, stainless steel and other materials. And electroplating CT, silver and nickel on its surface. The contact sheet is processed by cold stamping of the stamping die. It is a pressure processing method that uses the die installed on the press to apply pressure to the material at room temperature to cause separation or plastic deformation, thereby obtaining the required parts.

However, the existing lithium battery contact piece is processed by one-time stamping to complete the processing of each part of the contact piece. Since the contact piece is thin and easily damaged during the stamping process, it does not meet the existing needs. For this, we propose a high-efficiency Conductive lithium battery contact sheet forming process.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a high-conductivity lithium battery contact sheet forming process, so as to solve the problem that the lithium battery contact sheet proposed in the above-mentioned background technology completes the processing of each part of the contact sheet by one-time punching. easily damaged in the process.

In order to achieve the above object, the present invention provides the following technical solutions: a high-conductivity lithium battery contact sheet forming process, the high-conductivity lithium battery contact sheet forming process is realized based on a high-conductivity lithium battery contact sheet forming device, and the The high-conductivity lithium battery contact sheet forming device includes a frame, a first conveying mechanism, a first punching table, a first supporting table, a first pressing plate, a first cylinder, a buffer column, a lower punch, a second cylinder, and a second conveying mechanism , the second punching table, the second supporting table, the upper punching die, the second pressing plate, the connecting rod, the third air cylinder, the third conveying mechanism and the fourth conveying mechanism, the bottom end of the first punching table is provided with a guide hole, so The upper end of the guide hole is provided with a punching hole, the bottom end of the first pressing plate is provided with an accommodating hole, the lower punching die includes a receiving platform, a punching column, a connecting plate and a sliding sleeve, and the inside of the second punching platform is provided with a punching groove, the upper punching die includes a receiving plate, a punching block and a through hole, and a through groove is arranged inside the second pressing plate;

The high-conductivity lithium battery contact sheet forming process includes the following steps:

Step 1: The first conveying mechanism conveys the contact sheet to the first punching table, and stops conveying after conveying an appropriate length;

The second step: the first air cylinder drives the first pressing plate to move downward, and finally the first pressing plate is pressed on the top of the sheet;

The third step: the second cylinder drives the lower die to punch upward, the upper end of the punching column passes through the guide hole and the punching hole, and contacts the sheet, so that the surface of the sheet is plastically deformed, so that the shape of the upper end of the punching column is formed on the sheet. Matching protrusions to complete the preliminary stamping work;

The fourth step: the first conveying mechanism continues to convey the sheet, and the sheet is conveyed to the second conveying mechanism, and the sheet is conveyed to the second punching table through the conveying action of the first conveying mechanism and the second conveying mechanism;

Step 5: The third cylinder drives the upper die to punch downwards, the second pressing plate moves down with the upper punching die, and finally presses the second pressing plate to the top of the sheet, and the upper punching die continues to punch downwards under the action of the third cylinder. The parts where the sheet is attached to the punching block of the upper die are separated to realize the final forming of the contact sheet;

The sixth step: conveying the stamping waste through the third conveying mechanism for recycling, and conveying the formed contact piece to the next process through the fourth conveying mechanism.

Preferably, the first conveying mechanism is arranged on the inner side of the frame, the first support table is arranged on one side of the first conveying mechanism, and there are two first support tables, and the first punching table is arranged between the two first support tables and connected with the first support table by bolts, the first pressing plate is arranged above the first punching table, the first air cylinder is arranged on the top of the first pressing plate, and the first pressing plate is arranged on the top of the first pressing plate. The telescopic end of the air cylinder is fixedly connected with the first pressing plate, the buffer column is arranged at the bottom of the first support table, the lower punching die is arranged under the first punching table, and the second air cylinder is arranged at the bottom of the lower punching die, so The two ends of the second cylinder are respectively fixedly connected with the lower die and the frame, the second conveying mechanism is arranged on the other side of the first support table, and the second support table is arranged at the other side of the second conveying mechanism. one side, and there are two second supporting platforms, the second punching platform is arranged between the two second supporting platforms, and is connected with the second supporting platform by bolts, and the second pressing plate is arranged on the second punching platform. Above the table, the upper punching die is arranged above the second pressing plate, the connecting rods are arranged at the four corners of the upper punching die and the second pressing plate, the third air cylinder is arranged on the top of the upper punching die, and the third air cylinder The telescopic end is fixedly connected with the upper punching die, the third conveying mechanism is arranged on the other side of the second supporting table, and the fourth conveying mechanism is arranged below the second punching table.

Preferably, the punching column is arranged at the top end of the receiving platform, the connecting plate is arranged at the four corners of the bottom of the receiving platform, the punching column and the connecting plate and the punching column are integrated in structure, and the sliding sleeve is arranged on the connecting plate. Inside of the lower end of the plate.

Preferably, the connecting plate is provided with an "L"-shaped structure.

Preferably, the punching blocks are arranged at the bottom of the receiving plate, and have an integral structure with the receiving plate, and the through holes are arranged at four corners of the receiving plate.

Preferably, the buffer column includes a sliding rod and a first buffer spring, the sliding sleeve is sleeved on the outside of the sliding rod, the two ends of the sliding rod are respectively fixedly connected to the first support platform and the frame, the first The buffer spring is arranged outside the sliding rod, and is located between the first support platform and the connecting plate.

Preferably, the connecting rod includes a rod body, a second buffer spring and a limit block, the second buffer spring is sleeved on the outside of the rod body, the lower end of the rod body is welded to the second pressure plate, and the upper end of the rod body passes through through holes and fixedly connected with the limit block.

Preferably, there are several guide holes, punching holes, accommodating holes, punching columns, punching grooves, punching blocks and through-slots, and the number is the same.

Preferably, the first support table and the second support table are connected to the frame by welding, and the upper ends of the first air cylinder and the third air cylinder both penetrate the frame and are fixedly connected to the frame.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the present invention, a first punching table and a second punching table are respectively arranged on both sides of the second conveying mechanism, a lower punching die is installed below the first punching table, an upper punching die is installed above the second punching table, and the contact piece is realized by the lower punching die The plastic deformation of the contact sheet is realized by the upper die, and the contact sheet and the sheet are separated by the upper die, and the unprocessed part is pressed by the first pressing plate or the second pressing plate, so that the processing of each part of the contact sheet is completed in steps, which can effectively prevent the contact sheet from being processed. damage in the process, thereby reducing the scrap rate and improving the production quality.

2. The present invention realizes the connection between the lower die and the buffer column through the sliding sleeve, and the first buffer spring of the buffer column is arranged between the sliding sleeve and the first support table, thereby improving the firmness and stability of the lower die installation, At the same time, the first buffer spring can play a good buffer and shock absorption effect, and can improve the stability of the lower die during the stamping process.

3. The present invention realizes the connection between the second pressing plate and the upper punching die through the connecting rod. The upper end of the connecting rod body passes through the through hole of the upper punching die. When the second pressing plate and the second punching table cannot move in contact, the upper punching die can also follow The three-cylinder presses downward, and by using the good elasticity and the ability to restore deformation of the second buffer spring, it can play a good shock absorption and buffer effect, ensure the stability of the upper punching die, and at the same time apply a thrust to the second pressure plate, which is convenient for the first The second pressing plate compresses the sheet, and after the punching is completed, the second pressing plate can be restored to its original position.

Description of drawings

1 is a cross-sectional view of a high-conductivity lithium battery contact sheet forming device of the present invention;

Fig. 2 is the structural representation of the lower die of the present invention;

Fig. 3 is the structural representation of the upper die of the present invention;

Fig. 4 is the process flow diagram of the forming process of the present invention;

In the figure: 1, the frame; 2, the first conveying mechanism; 3, the first punching table; 31, the guide hole; 32, the punching hole; 4, the first support table; 5, the first pressing plate; 51, the accommodating hole; 6, the first cylinder; 7, the buffer column; 71, the sliding rod; 72, the first buffer spring; 8, the lower die; 81, the receiving platform; 82, the punch column; 83, the connecting plate; 84, the sliding sleeve; The second cylinder; 10, the second conveying mechanism; 11, the second punching table; 111, the punching groove; 12, the second support table; 13, the upper punching die; 131, the receiving plate; 14. The second pressure plate; 141, the through groove; 15, the connecting rod; 151, the rod body; 152, the second buffer spring; 153, the limit block; conveying mechanism.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

Please refer to Figures 1-4, an embodiment provided by the present invention: a high-conductivity lithium battery contact sheet forming process, the high-conductivity lithium battery contact sheet forming process is realized based on a high-conductivity lithium battery contact sheet forming device, and the high-conductivity lithium battery contact sheet forming process is realized. The conductive lithium battery contact sheet forming device includes a frame 1, a first conveying mechanism 2, a first punching table 3, a first supporting table 4, a first pressing plate 5, a first cylinder 6, a buffer column 7, a lower die 8, a first Two air cylinders 9, second conveying mechanism 10, second punching table 11, second supporting table 12, upper die 13, second pressing plate 14, connecting rod 15, third air cylinder 16, third conveying mechanism 17 and fourth conveying mechanism 18. The bottom end of the first punching table 3 is provided with a guide hole 31, the upper end of the guide hole 31 is provided with a punching hole 32, the bottom end of the first pressing plate 5 is provided with a receiving hole 51, and the lower punch 8 includes a receiving table 81, a punching column 82. The connecting plate 83 and the sliding sleeve 84, a punching groove 111 is arranged inside the second punching table 11, the upper punching die 13 includes a receiving plate 131, a punching block 132 and a through hole 133, and a through groove 141 is arranged inside the second pressing plate 14;

The high-conductivity lithium battery contact sheet forming process includes the following steps:

The first step: the first conveying mechanism 2 conveys the contact sheet to the first punching table 3, and stops conveying after conveying an appropriate length;

The second step: the first air cylinder 6 drives the first pressing plate 5 to move downward, and finally the first pressing plate 5 is pressed on the top of the sheet;

The third step: the second cylinder 9 drives the lower punch 8 to punch upward, the upper end of the punching column 82 passes through the guide hole 31 and the punching hole 32, and contacts the sheet, so that the surface of the sheet is plastically deformed, so that the sheet is formed with The shape of the upper end of the stamping column 82 is matched with the protrusion, and the preliminary stamping work is completed;

The fourth step: the first conveying mechanism 2 continues to convey the sheet, and the sheet is conveyed to the second conveying mechanism 10, and the sheet is conveyed to the second punching table 11 through the conveying action of the first conveying mechanism 2 and the second conveying mechanism 10;

Step 5: The third air cylinder 16 drives the upper die 13 to punch downward, the second pressing plate 14 moves downward following the upper punch 13, and finally the second pressing plate 14 is pressed against the top of the sheet, and the upper punch 13 is in the position of the third air cylinder 16. Continue to punch downwards under the action, so that the part where the sheet is abutted with the punching block 132 of the upper punching die 13 is separated, so as to realize the final forming of the contact sheet;

The sixth step: conveying the stamping waste through the third conveying mechanism 17 for recycling, and conveying the formed contact piece to the next process through the fourth conveying mechanism 18 .

Further, the first conveying mechanism 2 is arranged on the inner side of the frame 1, the first supporting table 4 is arranged on one side of the first conveying mechanism 2, and there are two first supporting tables 4, and the first punching table 3 is arranged in Between the two first support tables 4 and connected with the first support table 4 by bolts, the first pressing plate 5 is arranged above the first punching table 3, the first air cylinder 6 is arranged on the top of the first pressing plate 5, and the first pressing plate 5 is arranged on the top of the first pressing plate 5. The telescopic end of an air cylinder 6 is fixedly connected with the first pressing plate 5 , the buffer column 7 is arranged at the bottom of the first support table 4 , the lower punch 8 is arranged under the first punching table 3 , and the second cylinder 9 is arranged at the bottom of the lower punch 8 . At the bottom, both ends of the second cylinder 9 are fixedly connected to the lower die 8 and the frame 1 respectively, the second conveying mechanism 10 is arranged on the other side of the first supporting table 4, and the second supporting table 12 is arranged on the second conveying On the other side of the mechanism 10, there are two second support tables 12, the second punching table 11 is arranged between the two second support tables 12, and is connected with the second support table 12 by bolts, and the second pressing plate 14 The upper punching die 13 is arranged above the second pressing plate 14 , the connecting rods 15 are arranged at the four corners of the upper punching die 13 and the second pressing plate 14 , and the third air cylinder 16 is arranged on the upper punching die 13 The telescopic end of the third cylinder 16 is fixedly connected to the upper die 13 , the third conveying mechanism 17 is arranged on the other side of the second support table 12 , and the fourth conveying mechanism 18 is arranged below the second punching table 11 .

The second conveying mechanism 10 is arranged between the first punching table 3 and the second punching table 11 , plays a transition role, conveys and provides support for the sheet, and adjusts the gap between the first punching table 3 and the second punching table 11 at the same time. The distance is convenient for the first punching table 3 and the second punching table 11 to perform punching work at the same time. The fourth conveying mechanism 18 outputs the formed contact piece to the next process. The first conveying mechanism 2, the second conveying mechanism 10, the first conveying mechanism The third conveying mechanism 17 and the fourth conveying mechanism 18 are commonly used conveying equipment, including driving rollers, driven rollers, conveying belts, conveying motors, chains and other components.

Further, the punching column 82 is arranged at the top of the receiving platform 81, the connecting plate 83 is arranged at the four corners of the bottom of the receiving platform 81, the punching column 82 and the connecting plate 83 are integrated with the punching column 82, and the sliding sleeve 84 is arranged on the connecting plate. 83 The inside of the lower end.

The punching column 82 and the connecting plate 83 are integrally formed with the punching column 82, the integrity is good, the connection is seamless, the structure strength is high, and it is not easy to break.

Further, the connecting plate 83 is provided with an "L"-shaped structure.

A certain connection distance is set, and it is convenient to connect with the buffer column 7 at the same time.

Further, the punching blocks 132 are arranged at the bottom of the receiving plate 131 and are integrally formed with the receiving plate 131 , and the through holes 133 are arranged at four corners of the receiving plate 131 .

The punching block 132 and the receiving plate 131 are integrally formed, with good integrity, no gap at the connection, and high structural strength, which is not easy to break.

Further, the buffer column 7 includes a sliding rod 71 and a first buffer spring 72, the sliding sleeve 84 is sleeved on the outside of the sliding rod 71, the two ends of the sliding rod 71 are respectively fixedly connected with the first support table 4 and the frame 1, and the first buffer The spring 72 is disposed outside the sliding rod 71 and is located between the first support table 4 and the connecting plate 83 .

During the upward punching process of the lower die 8, the first buffer spring 72 will be compressed by force, and at the same time, the first buffer spring 72 will generate a reaction force to restore the deformation, and then reduce the force received in this process, and play a good role in The buffering and shock absorbing effects are improved, and the stamping stability of the lower die 8 is improved.

Further, the connecting rod 15 includes a rod body 151, a second buffer spring 152 and a limit block 153. The second buffer spring 152 is sleeved on the outside of the rod body 151, the lower end of the rod body 151 is welded to the second pressing plate 14, and the upper end of the rod body 151 passes through The through hole 133 is fixedly connected with the limiting block 153 .

During the lower punching process of the upper punching die 13, the second pressing plate 14 first contacts the second punching table 11. By utilizing the good elasticity and the ability to restore deformation of the second buffer spring 152, good shock absorption and buffering effects can be achieved, ensuring that The upper punching die 13 has the stability of punching, and at the same time exerts a pushing force on the second pressing plate 14, which is convenient for the second pressing plate 14 to press the sheet, and facilitates the second pressing plate 14 to return to its original position after the punching is completed.

Further, several guide holes 31 , punching holes 32 , receiving holes 51 , punching posts 82 , punching grooves 111 , punching blocks 132 and through grooves 141 are provided with the same number.

The lower die 8 and the upper die 13 can be used together to process a batch of contact pieces. The diameter of the punching column 82 is smaller than the diameter of the guide hole 31, the punching hole 32 and the accommodating hole 51, and the shape of the accommodating hole 51 and the contact piece are convex. The size of the punching groove 111 and the through groove 141 is larger than the size of the punching block 132, which is convenient for the punching block 132 to pass through to complete the punching, and the punched contact piece falls on the fourth conveying mechanism 18 through the punching groove 111. on the conveyor belt.

Further, the first support table 4 and the second support table 12 are connected to the frame 1 by welding, and the upper ends of the first cylinder 6 and the third cylinder 16 penetrate through the frame 1 and are fixedly connected to the frame 1 .

The welding is firm, the welding seam has good sealing performance, the structural integrity is good, and the structural rigidity is high. , lower the height of rack 1.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (7)

1. A high-conductivity lithium battery contact sheet forming process is characterized in that, the high-conductivity lithium battery contact sheet forming process is realized based on a high-conductivity lithium battery contact sheet forming device, and the high-conductivity lithium battery contacts The sheet forming device comprises a frame (1), a first conveying mechanism (2), a first punching table (3), a first supporting table (4), a first pressing plate (5), a first air cylinder (6), and a buffer column (7), lower die (8), second air cylinder (9), second conveying mechanism (10), second punching table (11), second supporting table (12), upper punching die (13), second pressing plate (14), a connecting rod (15), a third air cylinder (16), a third conveying mechanism (17) and a fourth conveying mechanism (18), the bottom end of the first punching table (3) is provided with a guide hole ( 31), the upper end of the guide hole (31) is provided with a punching hole (32), the bottom end of the first pressing plate (5) is provided with a receiving hole (51), and the lower die (8) includes a receiving table ( 81), punching column (82), connecting plate (83) and sliding sleeve (84), a punching groove (111) is provided inside the second punching table (11), and the upper punching die (13) includes a receiving plate (131), a punching block (132) and a through hole (133), a through groove (141) is provided inside the second pressing plate (14); the guide hole (31), punching hole (32), accommodating hole ( 51), punching columns (82), punching grooves (111), punching blocks (132) and through-slots (141) are provided with several, and the number is the same; the first conveying mechanism (2) is provided on the frame (1) Inside the interior, the first support table (4) is arranged on one side of the first conveying mechanism (2), and there are two first support tables (4), the first punching table (3) ) is arranged between the two first support tables (4), and is connected with the first support table (4) by bolts, the first pressing plate (5) is arranged above the first punching table (3), the The first air cylinder (6) is arranged on the top of the first pressing plate (5), and the telescopic end of the first air cylinder (6) is fixedly connected with the first pressing plate (5), and the buffer column (7) is arranged on the first support table (4), the lower punch (8) is arranged below the first punching table (3), the second air cylinder (9) is arranged at the bottom of the lower punch (8), the second air cylinder (9) ) are respectively fixedly connected with the lower die (8) and the frame (1), the second conveying mechanism (10) is arranged on the other side of the first support table (4), the second support table ( 12) It is arranged on the other side of the second conveying mechanism (10), and there are two second supporting platforms (12), and the second punching platform (11) is arranged between the two second supporting platforms (12). and connected with the second support table (12) by bolts, the second pressing plate (14) is arranged above the second punching table (11), and the upper punching die (13) is arranged on the second pressing plate (14) Above, the connecting rods (15) are arranged at the four corners of the upper die (13) and the second pressing plate (14). The cylinder (16) is arranged on the top of the upper die (13), the telescopic end of the third cylinder (16) is fixedly connected with the upper die (13), and the third conveying mechanism (17) is arranged on the second support table (12) ), the fourth conveying mechanism (18) is arranged below the second punching table (11); Wherein, the high-conductivity lithium battery contact sheet forming process includes the following steps: The first step: the first conveying mechanism (2) conveys the contact sheet to the first punching table (3), and stops conveying after conveying an appropriate length; The second step: the first air cylinder (6) drives the first pressing plate (5) to move downward, and finally the first pressing plate (5) is pressed on the top of the sheet; The third step: the second air cylinder (9) drives the lower die (8) to punch upward, and the upper end of the punching column (82) passes through the guide hole (31) and the punching hole (32), and contacts the sheet, so that the surface of the sheet is produced Plastic deformation, so that a protrusion matching the shape of the upper end of the punching column (82) is formed on the sheet, and the preliminary punching work is completed; The fourth step: the first conveying mechanism (2) continues to convey the sheet, and the sheet is conveyed to the second conveying mechanism (10), and the sheet is transported by the conveying action of the first conveying mechanism (2) and the second conveying mechanism (10). The material is conveyed to the second punching table (11); Step 5: The third air cylinder (16) drives the upper die (13) to press down, and the second pressing plate (14) follows the upper punching die (13) to move downward, and finally presses the second pressing plate (14) above the sheet , the upper punching die (13) continues to punch downwards under the action of the third cylinder (16), so that the parts where the sheet material and the punching block (132) of the upper punching die (13) fit together are separated to realize the final forming of the contact sheet; The sixth step: conveying the stamping waste through the third conveying mechanism (17) for recycling, and conveying the formed contact piece to the next process through the fourth conveying mechanism (18). 2 . The high-conductivity lithium battery contact sheet forming process according to claim 1 , wherein the punching column ( 82 ) is arranged on the top of the receiving platform ( 81 ), and the connecting plate ( 83 ) is arranged on the top of the receiving platform ( 81 ). At the four corners of the bottom of the receiving platform (81), the punching column (82) and the connecting plate (83) are integrally formed, and the sliding sleeve (84) is arranged on the inner side of the lower end of the connecting plate (83). 3 . The process for forming a contact sheet of a high-conductivity lithium battery according to claim 1 , wherein the connecting plate ( 83 ) is provided with an “L”-shaped structure. 4 . 4. A high-conductivity lithium battery contact sheet forming process according to claim 1, characterized in that: the punching block (132) is arranged at the bottom of the receiving plate (131), and is the same as the receiving plate (131) In an integrated structure, the through holes (133) are arranged at four corners of the receiving plate (131). 5 . The process for forming a contact sheet of a high-conductivity lithium battery according to claim 1 , wherein the buffer column ( 7 ) comprises a sliding rod ( 71 ) and a first buffer spring ( 72 ). The sleeve (84) is sleeved on the outside of the sliding rod (71), the two ends of the sliding rod (71) are respectively fixedly connected with the first support table (4) and the frame (1), and the first buffer spring (72) ) is arranged outside the sliding rod (71), and is located between the first support table (4) and the connecting plate (83). 6. A high-conductivity lithium battery contact sheet forming process according to claim 1, characterized in that: the connecting rod (15) comprises a rod body (151), a second buffer spring (152) and a limit block ( 153), the second buffer spring (152) is sleeved on the outside of the rod body (151), the lower end of the rod body (151) is welded to the second pressure plate (14), and the upper end of the rod body (151) passes through the The hole (133) is fixedly connected with the limit block (153). 7. A high-conductivity lithium battery contact sheet forming process according to claim 1, characterized in that: the first support table (4) and the second support table (12) are connected to the frame (1) by welding The upper ends of the first air cylinder (6) and the third air cylinder (16) both penetrate the frame (1) and are fixedly connected with the frame (1).

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