Automatic shaping machine for battery cell

Abstract

The utility model relates to the field of battery cell processing equipment, in particular to an automatic shaping machine for a battery cell. The shaping machine comprises a battery cell horizontal conveying table, a battery cell carrying seat, a pneumatic clamp making device, an inflation mechanism, a deflation mechanism, a lower battery cell pressing mechanism, a longitudinal battery cell extruding mechanism, a transverse battery cell extruding mechanism and clamping blocks, the battery cell carrying seat is connected to the battery cell horizontal conveying table, and the two sets of clamping blocks are connected to a straight rail on the battery cell carrying seat in a sliding fit mode; the clamping block is fixed together with a pneumatic clamping device for clamping the straight rail, and an air inflation mechanism for conveying air to the pneumatic clamping device is mounted on the battery cell horizontal conveying table. According to the utility model, the battery cell is extruded in all directions through the battery cell downward-pressing mechanism, the longitudinal battery cell extruding mechanism and the transverse battery cell extruding mechanism. The pneumatic clamp making device is matched with the inflating mechanism and the deflating mechanism, so that after the battery cell is extruded, the pressure on the battery cell can be kept while the battery cell is moved, and the battery cell can be moved to other stations for detection.

Description

Technical Field

[0001] This utility model relates to the field of battery cell processing equipment, and in particular to an automatic battery cell shaping machine. Background Technology

[0002] Lithium-ion battery cells contain gaps and expansion spaces, which can lead to instability in the internal structure, affecting battery safety and cycle life. During cell manufacturing, extrusion effectively reduces these gaps, improving structural stability and thus enhancing battery safety and cycle life. However, current cell extrusion methods only involve extrusion from both sides, and the cell rebounds slightly after extrusion, preventing it from being moved to other workstations for testing before being moved. Testing must be performed while maintaining the extrusion pressure. Utility Model Content

[0003] The technical problem this invention aims to solve is: to address the technical problems described in the background art, this invention provides an automatic battery cell shaping machine. It uses a downward pressing mechanism, a longitudinal extrusion mechanism, and a transverse extrusion mechanism to perform all-around extrusion of the battery cell. Through a pneumatic clamping device in conjunction with an inflation and deflation mechanism, pressure can be maintained on the battery cell while it is being moved after extrusion, allowing it to be moved to other workstations for testing.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] An automatic battery cell shaping machine includes a horizontal battery cell conveying table, a battery cell carrier, a pneumatic clamping device, an inflation mechanism, a deflation mechanism, a downward pressing mechanism, a longitudinal extrusion mechanism, a transverse extrusion mechanism, and clamping blocks. The battery cell carrier is connected to the horizontal battery cell conveying table. Two sets of clamping blocks are slidably connected to a straight rail on the battery cell carrier. The clamping blocks and the pneumatic clamping device for clamping the straight rail are fixed together. An inflation mechanism for supplying air to the pneumatic clamping device and a deflation mechanism for releasing air from the pneumatic clamping device are installed on the horizontal battery cell conveying table. The downward pressing mechanism is located above the horizontal battery cell conveying table. The longitudinal extrusion mechanism is located on the front and rear sides of the horizontal battery cell conveying table. The transverse extrusion mechanism is located on the left and right sides of the horizontal battery cell conveying table. The pneumatic clamping device is located below the downward pressing mechanism.

[0006] Specifically, the inflation mechanism includes an air nozzle and an air nozzle lifting cylinder. An air nozzle is fixed on the piston rod of the air nozzle lifting cylinder, and the air nozzle is connected to an air pump.

[0007] Specifically, the venting mechanism is a single-rod cylinder.

[0008] Specifically, the lower pressure cell mechanism includes a lower pressure plate and a lower pressure plate lifting power cylinder, with the lower pressure plate fixed on the piston rod of the lower pressure plate lifting power cylinder.

[0009] Specifically, the longitudinal extrusion cell mechanism includes a longitudinal pressure plate and a longitudinal drive cylinder. The longitudinal pressure plate is fixed on the piston rod of the longitudinal drive cylinder, and two opposing longitudinal drive cylinders are located on the front and rear sides of the cell horizontal conveying table, respectively.

[0010] Specifically, the transverse extrusion cell mechanism includes a transverse pressure plate, a transverse drive cylinder, and a lifting power cylinder. The piston rod of the lifting power cylinder is fixed with the transverse drive cylinder, and the piston rod of the transverse drive cylinder is fixed with the transverse pressure plate.

[0011] Specifically, the horizontal conveyor platform for battery cells is a double-speed chain conveyor, and the chain of the double-speed chain conveyor is connected to the battery cell carrier.

[0012] Specifically, the clamping block is provided with several clearance grooves.

[0013] The beneficial effects of this utility model are as follows: This utility model provides an automatic battery cell shaping machine. The battery cell is squeezed from all directions through a downward pressing mechanism, a longitudinal squeezing mechanism, and a transverse squeezing mechanism. By using a pneumatic clamping device in conjunction with an inflation and deflation mechanism, pressure can be maintained on the battery cell while it is being moved after squeezing, allowing the battery cell to be moved to other workstations for testing. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the battery cell carrier and inflation mechanism of this utility model;

[0017] Figure 3 This utility model relates to a downward pressing cell mechanism, a longitudinal extrusion cell mechanism, and a transverse extrusion cell mechanism.

[0018] Structural diagram;

[0019] In the diagram: 1. Horizontal cell conveyor; 2. Cell carrier; 3. Pneumatic clamp; 4. Inflation mechanism; 5. Release mechanism.

[0020] 6. Gas extrusion mechanism, 7. Lowering cell extrusion mechanism, 8. Lateral cell extrusion mechanism,

[0021] 9. Clamping block; 41. Air nozzle; 42. Air nozzle lifting cylinder; 61. Lower pressure plate; 62. Lower pressure plate lifting power cylinder; 71. Longitudinal pressure plate; 72. Longitudinal drive cylinder; 81. Lateral pressure plate; 82. Lateral drive electric cylinder; 83. Lifting power cylinder. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the battery cell carrier and inflation mechanism of this utility model; Figure 3 This is a schematic diagram of the structure of the downward pressing cell mechanism, the longitudinal extrusion cell mechanism, and the transverse extrusion cell mechanism of this utility model.

[0024] As attached Figure 1 As shown, an automatic battery cell shaping machine includes a horizontal battery cell conveying platform 1, a battery cell carrier 2, a pneumatic clamping device 3, an inflation mechanism 4, a deflation mechanism 5, a downward pressing battery cell mechanism 6, a longitudinal extrusion battery cell mechanism 7, a transverse extrusion battery cell mechanism 8, and clamping blocks 9. The battery cell carrier 2 is connected to the horizontal battery cell conveying platform 1. Two sets of clamping blocks 9 are slidably connected to a straight rail on the battery cell carrier 2. The clamping blocks 9 and the pneumatic clamping device 3 used to clamp the straight rail are fixed together. The horizontal battery cell conveying platform 1 is equipped with an inflation mechanism 4 for supplying air to the pneumatic clamping device 3 and a deflation mechanism 5 for deflating the pneumatic clamping device 3. The downward pressing battery cell mechanism 6 is located above the horizontal battery cell conveying platform 1. The longitudinal extrusion battery cell mechanism 7 is located on the front and rear sides of the horizontal battery cell conveying platform 1. The transverse extrusion battery cell mechanism 8 is located on the left and right sides of the horizontal battery cell conveying platform 1. The pneumatic clamping device 3 is located below the downward pressing battery cell mechanism 6.

[0025] As attached Figure 2 As shown, the inflation mechanism 4 includes an air nozzle 41 and an air nozzle lifting cylinder 42. The air nozzle 41 is fixed on the piston rod of the air nozzle lifting cylinder 42, and the air nozzle 41 is connected to the air pump.

[0026] The venting mechanism 5 is a single-rod cylinder.

[0027] As attached Figure 3 As shown, the lower pressure cell mechanism 6 includes a lower pressure plate 61 and a lower pressure plate lifting power cylinder 62, with the lower pressure plate 61 fixed on the piston rod of the lower pressure plate lifting power cylinder 62.

[0028] The longitudinal extrusion cell mechanism 7 includes a longitudinal pressure plate 71 and a longitudinal drive cylinder 72. The longitudinal pressure plate 71 is fixed on the piston rod of the longitudinal drive cylinder 72. The two opposing longitudinal drive cylinders 72 are located on the front and rear sides of the cell horizontal conveying table 1, respectively.

[0029] The transverse extrusion cell mechanism 8 includes a transverse pressure plate 81, a transverse drive cylinder 82, and a lifting power cylinder 83. The transverse drive cylinder 82 is fixed on the piston rod of the lifting power cylinder 83, and the transverse pressure plate 81 is fixed on the piston rod of the transverse drive cylinder 82.

[0030] The horizontal conveyor platform 1 for battery cells is a double-speed chain conveyor, and the chain of the double-speed chain conveyor is connected to the battery cell carrier 2.

[0031] The clamping block 9 is provided with several clearance grooves.

[0032] The working method of this application is as follows: First, the battery cell is placed on the battery cell carrier 2, at which point the battery cell is located between two clamping blocks 9. Then, the battery cell horizontal conveying table 1 drives the battery cell carrier 2 to move forward horizontally to below the battery cell pressing mechanism 6. At this time, two longitudinal drive cylinders 72 drive two longitudinal pressure plates 71 to longitudinally press the battery cell. Then, the lower pressure plate lifting power cylinder 62 of the lower pressure plate pressing mechanism 6 drives the lower pressure plate 61 to press the battery cell downward. Finally, the transverse pressing battery cell mechanisms 8 on the left and right sides drive the transverse pressure plates 81 to move downward to the left and right sides of the battery cell through the lifting power cylinder 83. Finally, two transverse drive cylinders 82 drive two transverse pressure plates 81 to transversely press the battery cell.

[0033] After the battery cell is compressed, the air nozzle lifting cylinder 42 of the lower inflation mechanism 4 drives the air nozzle 41 to open the spring valve in the pneumatic clamp 3, thereby opening the valve and inflating the pneumatic clamp 3. This causes the pneumatic clamp 3 to hold and fix the straight rail on the battery cell carrier 2. In this way, after the downward pressing battery cell mechanism 6, the longitudinal squeezing battery cell mechanism 7, and the lateral squeezing battery cell mechanism 8 release the battery cell, the two clamping blocks 9, together with the pneumatic clamp 3, can continue to maintain pressure on the battery cell. After inflation is complete, the air nozzle 41 moves down and away from the valve of the pneumatic clamp 3, and the spring rebounds, causing the valve to close the valve again. In this way, the pneumatic clamp 3 can continue to clamp and fix the straight rail.

[0034] Finally, after the horizontal pressure plates 81 on both sides move upward and reset, the battery cell carrier 2, carrying the battery cell, continues to move horizontally forward to the testing station for power-on testing. After all this is completed, it moves to the venting mechanism 5. The venting mechanism 5 is a single-rod cylinder. This single-rod cylinder drives the piston rod upward and opens the valve disc, thus releasing the gas in the pneumatic clamp 3, which then releases the straight rail. This allows the fingers of the gripper on the multi-axis robotic arm to insert into the clearance groove on the clamping block 9 and hold the battery cell, removing it from the battery cell carrier 2.

[0035] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An automatic battery cell shaping machine, characterized in that, The device includes a horizontal cell conveying platform (1), a cell carrier (2), a pneumatic clamping device (3), an inflation mechanism (4), an deflation mechanism (5), a cell pressing mechanism (6), a longitudinal cell extrusion mechanism (7), a transverse cell extrusion mechanism (8), and clamping blocks (9). The horizontal cell conveying platform (1) is connected to the cell carrier (2), and two sets of clamping blocks (9) are slidably connected to the straight rail on the cell carrier (2). The clamping blocks (9) and the pneumatic clamping device (3) used to clamp the straight rail are fixed together. The battery cell horizontal conveying platform (1) is equipped with an air-inflating mechanism (4) for supplying air to the pneumatic clamp (3) and an air-releasing mechanism (5) for releasing air from the pneumatic clamp (3). The battery cell pressing mechanism (6) is located above the battery cell horizontal conveying platform (1). The longitudinal extrusion battery cell mechanism (7) is located on the front and rear sides of the battery cell horizontal conveying platform (1). The transverse extrusion battery cell mechanism (8) is located on the left and right sides of the battery cell horizontal conveying platform (1). The pneumatic clamp (3) is located below the battery cell pressing mechanism (6).

2. The automatic cell shaping machine according to claim 1, characterized in that: The inflation mechanism (4) includes an air nozzle (41) and an air nozzle lifting cylinder (42). The air nozzle (41) is fixed on the piston rod of the air nozzle lifting cylinder (42), and the air nozzle (41) is connected to the air pump.

3. The automatic cell shaping machine according to claim 1, characterized in that: The venting mechanism (5) is a single-rod cylinder.

4. The automatic cell shaping machine according to claim 1, characterized in that: The lower pressure cell mechanism (6) includes a lower pressure plate (61) and a lower pressure plate lifting power cylinder (62), with the lower pressure plate (61) fixed on the piston rod of the lower pressure plate lifting power cylinder (62).

5. The automatic cell shaping machine according to claim 1, characterized in that: The longitudinal extrusion cell mechanism (7) includes a longitudinal pressure plate (71) and a longitudinal drive cylinder (72). The longitudinal pressure plate (71) is fixed on the piston rod of the longitudinal drive cylinder (72). The two opposing longitudinal drive cylinders (72) are located on the front and rear sides of the cell horizontal conveying platform (1).

6. The automatic cell shaping machine according to claim 1, characterized in that: The transverse extrusion cell mechanism (8) includes a transverse pressure plate (81), a transverse drive cylinder (82), and a lifting power cylinder (83). The piston rod of the lifting power cylinder (83) is fixed with the transverse drive cylinder (82), and the piston rod of the transverse drive cylinder (82) is fixed with the transverse pressure plate (81).

7. The automatic cell shaping machine according to claim 1, characterized in that: The battery cell horizontal conveyor (1) is a double-speed chain conveyor, and the chain of the double-speed chain conveyor is connected to the battery cell carrier (2).

8. The automatic cell shaping machine according to claim 1, characterized in that: The clamping block (9) is provided with several clearance grooves.

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