New energy battery mechanical pressing device

Abstract

The invention discloses a new energy battery mechanical press-fit device, and relates to the field of lithium battery top cover and shell press-fit structure.The new energy battery mechanical press-fit device comprises a bottom plate, a rear side support and a front side support are symmetrically fixed to the top face of the bottom plate, and the rear side support and the front side support are distributed front and back; a rear positioning block is fixed to the middle of the top face of the rear support. According to the new energy battery mechanical pressing device, when the welding head welds the left side of the top face of a square shell lithium battery shell, the pressing strip on the left side can be selected to be turned over to expose all the to-be-welded positions on the left side, after the left side is welded, the pressing strip on the left side is turned over to be pressed on the pressing frame, and then the pressing strip on the right side is turned over to leave; and then the to-be-welded position on the right side is continuously welded, and therefore it is guaranteed that welding work of all the positions of the top cover is completed at a time.

Description

Technical Field

[0001] This invention relates to the field of lithium battery top cover and outer shell pressing structure, and more particularly to a mechanical pressing device for new energy batteries. Background Technology

[0002] In the manufacturing process of new energy batteries, the traditional square lithium battery top cover and outer shell are welded together using a mechanical pressing device, followed by welding the seam using a laser welding head. However, since the pressing device always has a part that blocks part of the seam, the welding is done in two steps: first, the exposed seam is welded, then the pressing structure is separated, and then the blocked seam is welded again. This results in repeated welding actions, discontinuous welding actions, and a complicated, time-consuming, and inefficient welding process. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, the purpose of this invention is to provide a mechanical pressing device for new energy batteries, which solves the problems of repeated welding operations, discontinuous welding operations, and long time consumption caused by existing pressing structures.

[0004] To address the problems of the prior art, the technical solution of the present invention is as follows:

[0005] A mechanical pressing device for new energy batteries includes a base plate, a rear support and a front support symmetrically fixed to the top surface of the base plate, and further includes:

[0006] The clamping mechanism is installed on the top surface of the rear bracket and the front bracket to clamp the outer shell of the square lithium battery.

[0007] Two sets of pressing mechanisms are symmetrically arranged on the top surface of the base plate and located between the rear support and the front support. Each pressing mechanism includes a U-shaped frame and a pressing strip. The U-shaped frame is fixed on the base plate and the pressing strip is connected inside the U-shaped frame. When the pressing strip clamps, the pressing part is parallel to the top surface of the outer shell and located above the outer shell.

[0008] The pressing frame is detachably connected to the pressing strips of the two pressing mechanisms and locked to one of the pressing strips by a snap-fit ​​component. When the pressing strip is in the pressing state, its pressing part is connected to the pressing frame to press the pressing frame against the top of the outer shell of the square lithium battery. The pressing strip also has an avoidance state to avoid the welding position.

[0009] Preferably, the clamping mechanism includes a rear positioning block fixed to the top surface of the rear support, a front positioning block slidably connected to the top surface of the front support, the front positioning block being driven by a first cylinder to clamp the outer shell along the length direction with the rear positioning block, a left positioning block being fixed to the left side of the rear support and the front support, and a right positioning block being slidably connected to the right side, the right positioning block being driven by a second cylinder to clamp the outer shell along the width direction with the left positioning block.

[0010] Preferably, the pressing mechanism further includes a guide rod cylinder, a first rotating shaft, guide side plates, and insertion pins. The guide rod cylinder is fixed inside the U-shaped frame. The first rotating shaft is rotatably connected to the telescopic end of the guide rod cylinder. Two guide side plates are symmetrically fixed at both ends of the first rotating shaft. The insertion pins are rotatably connected to the end of the guide side plate away from the first rotating shaft and are slidably inserted into the guide grooves on both sides of the U-shaped frame. The lower end of the pressing strip is fixed to the outer wall of the first rotating shaft.

[0011] Preferably, the guide groove includes a vertical section and an inclined section extending away from the clamping position. The insertion post rises along the vertical section under the drive of the guide rod cylinder and enters the inclined section, causing the pressing strip to flip.

[0012] Preferably, an open groove is formed in the middle of the pressing part of the pressing strip on one side, and the pressing part of the pressing strip on the other side is directly opposite the open groove. The pressing frame can be movably inserted into the bottom surface of the two pressing parts on both sides.

[0013] Preferably, the snap-fit ​​assembly includes positioning boxes symmetrically fixed on the top surface of the pressing frame. The two sets of positioning boxes are distributed front to back. When the pressing strips on both sides are in the pressing posture, the two sets of positioning boxes are located in the open groove. The pressing part of the pressing strip on the opposite side of the open groove is located between the two positioning boxes. Two sets of flip-locking structures are installed symmetrically in the positioning boxes. The two sets of flip-locking structures are used to connect the positioning boxes to the two pressing parts respectively.

[0014] Preferably, the flip-locking structure includes a second rotating shaft rotatably connected to the inner wall of the positioning box. A rotating bar is fixed in the middle of the second rotating shaft. A torsion spring is sleeved on the upper end of the second rotating shaft. One end of the torsion spring is fixed to the outer wall of the second rotating shaft, and the other end is fixed to the inner wall of the positioning box. A hemispherical protrusion is formed at one end of the rotating bar, and a locking block is fixed at the other end. The locking block and the protrusion are respectively located on opposite sides of the rotating bar. Both the locking block and the protrusion can penetrate the positioning box through the through groove opened on the side wall of the positioning box and extend to the outside of the positioning box. The side walls of the pressing parts on both sides are provided with locking grooves. When the pressing parts are in the pressing posture, the locking grooves and locking blocks are opposite each other.

[0015] Preferably, a synchronization bar is symmetrically fixed to the lower end of one of the pressing bars on one side, and a roller is rotatably connected to the lower end of the two synchronization bars. The outer wall of the roller is wrapped with a sponge sleeve, and an ink cartridge is fixed on the base plate. When the pressing bar flips, the roller picks up the ink in the ink cartridge and contacts the outer wall of the outer shell to mark defective products.

[0016] Preferably, a transmission bar is fixed to the bottom surface of the front positioning block. The end of the transmission bar away from the front positioning block extends upward toward the roller and is connected to a baffle. When the first cylinder retracts, the pressing bar connected to the roller flips to an avoidance state, and the baffle blocks the roller between the clamping position and the clamping position.

[0017] Compared with the prior art, the advantages of the present invention are as follows:

[0018] 1. By setting two sets of flip-up pressing strips, and in conjunction with a specially structured pressing frame, positioning box and snap-fit ​​assembly, the two sets of pressing strips can alternately flip to avoid the welding position during the welding process, so that the welding head does not need to be re-welded. The welding work of the top cover of the square lithium battery can be completed in one go, which greatly reduces the operation steps and welding time, and significantly improves the welding efficiency.

[0019] 2. This invention, through the roller, sponge sleeve and ink cartridge structure set at the bottom of the right-side pressing strip, combined with a visual inspection device, can apply pigment to the outer wall of the defective product shell by flipping the pressing strip when welding defects are detected, accurately marking the defective product, making it easy for workers to quickly distinguish, effectively avoiding confusion between defective and good products. The original flipping structure of the pressing strip is used to achieve the application, reducing the investment in power equipment and saving the production, manufacturing and operation and maintenance costs of the pressing structure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 For the present invention Figure 1 Enlarged view of point B.

[0022] Figure 3 This is a schematic diagram of the transmission bar structure of the present invention.

[0023] Figure 4 For the present invention Figure 3 Enlarged view of point A.

[0024] Figure 5 This is a schematic diagram of the guide groove structure of the present invention.

[0025] Figure 6 This is a schematic diagram of the torsion spring structure of the present invention.

[0026] Figure 7 This is a schematic diagram of the rotating bar structure of the present invention.

[0027] Figure 8 This is a schematic diagram of the card slot structure of the present invention.

[0028] Figure 9 This is a schematic diagram of the position of the rear positioning block in this invention.

[0029] Figure 10 This is a schematic diagram showing the position of the insertion post of the present invention.

[0030] Figure 11 This is a schematic diagram of the ink cartridge position according to the present invention.

[0031] Reference numerals: 1. Base plate; 2. Rear support; 3. Front support; 4. Rear positioning block; 5. First cylinder; 6. Front positioning block; 7. Left positioning block; 8. Right positioning block; 9. Second cylinder; 10. U-shaped frame; 1001. Guide groove; 11. Guide rod cylinder; 12. First rotating shaft; 13. Guide side plate; 14. Insertion post; 15. Pressing strip; 16. Pressing part; 17. Opening groove; 18. Pressing frame; 19. First connecting hole; 20. First connecting post; 21. Second connecting hole; 22. Second connecting post; 23. Positioning box; 24. Second rotating shaft; 25. Rotating bar; 26. Torsion spring; 27. Protrusion; 28. Snap-fit ​​block; 29. ​​Snap-fit ​​groove; 30. Synchronization bar; 31. Roller; 32. Sponge sleeve; 33. Transmission bar; 34. Baffle; 35. Ink cartridge. Detailed Implementation

[0032] The technical solutions 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 only some embodiments of the present invention, and not all embodiments.

[0033] Please see Figures 1 to 11 This embodiment provides a mechanical pressing device for new energy batteries, including a base plate 1. A rear support 2 and a front support 3 are symmetrically fixed on the top surface of the base plate 1. The rear support 2 and the front support 3 are distributed front to back. A rear positioning block 4 is fixed in the middle of the top surface of the rear support 2. A first cylinder 5 is fixed in the middle of the top surface of the front support 3, directly opposite the rear positioning block 4. A front positioning block 6 is fixed at the extended end of the first cylinder 5. The front positioning block 6 is slidably connected to the top surface of the front support 3 through a first sliding rod. The front positioning block 6 and the rear positioning block 4 are directly opposite each other. The outer shell of the square lithium battery is placed between the front and rear positioning blocks 4, and the first cylinder 5 is driven to extend. The front and rear positioning blocks 4 can clamp the outer shell on the front and rear sides in the length direction of the outer shell.

[0034] A left positioning block 7 is fixed on the left side of the top surface of the rear bracket 2 and the front bracket 3. A right positioning block 8 is slidably installed on the right side of the top surface of the rear bracket 2 and the front bracket 3 via a second sliding rod. The right positioning block 8 is directly opposite the left positioning block 7. The side of the right positioning block 8 away from the left positioning block 7 is connected to the extended end of the second cylinder 9. The second cylinder 9 is fixed on the top surface of the front bracket 3. The four positioning blocks (front, rear, left, and right) form a rectangular space. During the pressing process, the outer shell of the square lithium battery is placed into this rectangular space. The bottom of the square shell rests on the top surfaces of the rear bracket 2 and the front bracket 3. Then, the second cylinder 9 extends and pushes the right positioning block 8 toward the left positioning block 7, abutting against the outer shell of the square lithium battery. At the same time, the first cylinder 5 extends and pushes the front positioning block 6 toward the rear positioning block 4, abutting against the outer shell of the square lithium battery, thus completing the positioning of the square lithium battery.

[0035] Two sets of pressing mechanisms are symmetrically arranged on the top surface of the base plate 1. The two sets of pressing mechanisms are located at the two ends between the rear support 2 and the front support 3, respectively. The pressing mechanism consists of a U-shaped frame 10, a guide rod cylinder 11, a first rotating shaft 12, guide side plates 13, insertion posts 14, and pressing strips 15. The U-shaped frame 10 is fixed to the top surface of the base plate 1, the guide rod cylinder 11 is fixed to the bottom surface of the inner wall of the U-shaped frame 10, and the first rotating shaft 12 is rotatably connected to the extended end of the guide rod cylinder 11 through bearings. The two guide side plates 13 are symmetrically fixed to the first rotating shaft 12. At both ends of 2, the insertion post 14 is rotatably connected to the end of the guide side plate 13 away from the first rotating shaft 12, and the axis of the insertion post 14 is parallel to the axis of the first rotating shaft 12. The lower end of the pressing strip 15 is fixed on the middle outer wall of the first rotating shaft 12. The two ends of the U-shaped frame 10 are symmetrically provided with guide grooves 1001. The insertion posts 14 at both ends of the first rotating shaft 12 are respectively inserted into the two guide grooves 1001 at both ends of the U-shaped frame 10. The lower part of the guide groove 1001 is vertical, and the upper part is inclined to extend upward towards the side away from the clamping position.

[0036] In the pressed state, the insertion post 14 is located in the lower vertical part of the guide groove 1001, while the first rotating shaft 12 is located directly below the insertion post 14. The lower end of the pressing strip 15 is vertical, and the upper end of the pressing strip 15 extends horizontally towards the clamping position to form a pressing part 16. The two ends of the pressing strip 15 are perpendicular to each other at 90 degrees. An open groove 17 is opened in the middle of the pressing part 16 of the left pressing strip 15, and the pressing part 16 of the right pressing strip 15 is located inside the open groove 17. A pressing frame 18 is provided below the two pressing parts 16. The entire pressing frame 18 can press the top cover along the outer periphery of the top cover of the square lithium battery. The left side Both ends of the pressing part 16 are symmetrically provided with first connecting holes 19, and first connecting posts 20 are inserted into the first connecting holes 19. The bottom of the first connecting posts 20 is fixed to the top surface of the pressing frame 18. Two second connecting holes 21 are symmetrically provided on the right pressing part 16. Second connecting posts 22 are inserted into the second connecting holes 21. The bottom of the second connecting posts 22 is fixed to the top surface of the pressing frame 18. Thus, in the pressing state, the pressing frame 18 is inserted under the two pressing parts 16 on both sides. The pressing frame 18 can be pressed by any pressing strip 15 on either side to press the top cover of the square lithium battery into the outer shell.

[0037] During the welding process, it is ensured that only one pressing strip 15 on one side is in the pressing state, while the pressing strip 15 on the other side is in the avoidance state. During the avoidance process, the drive guide cylinder 11 extends and pushes the first rotating shaft 12 upward. After the insertion post 14 is pushed into the upper part of the guide groove 1001, the arc-shaped part of the guide groove 1001 guides the insertion post 14, causing the first rotating shaft 12 to flip. This causes the pressing strip 15 to flip away from the clamping position, allowing the pressing strip 15 to avoid the clamping position, thereby exposing one side of the welding position of the square lithium battery top cover. The welding position on that side is completed as the laser welding head passes the flipped and avoided pressing strip 15. After the initial welding work, during the welding process on the two short sides of the square lithium battery, the pressing strip 15, which was originally in a avoidance state, flips over and connects to the pressing frame 18. Then, the pressing strip 15, which was originally in a pressing state, flips back to an avoidance state, exposing the long side of the square lithium battery casing that has not been welded. Then, the welding head continues to weld, thus completing the welding work on all positions of the square lithium battery casing and the top cover. In this way, during the process of completing the full circumferential welding work of the casing and the top cover, the welding work continues without covering the unwelded positions, so there is no need for secondary welding. The welding steps are carried out continuously, reducing the number of operation steps, saving welding time, and greatly improving welding efficiency.

[0038] When the square lithium battery casing and top cover are welded and need to be removed and reloaded, the pressing strip 15, which is in the pressing state, is driven to flip to the avoidance state. Both pressing strips 15 are in the avoidance state. At this time, it is necessary to ensure that the pressing frame 18 is connected to the pressing part 16 of one of the pressing strips 15. In order to ensure that both pressing strips 15 can be separated independently from the pressing frame 18, but the pressing frame 18 can be connected to one of the pressing strips 15 respectively, the following structure is set:

[0039] Two positioning boxes 23 are fixed side by side from front to back on the top surface of the pressing frame 18. When both pressing strips 15 on both sides are in the pressing state, the two sides of the pressing part 16 of the right pressing strip 15 abut against the opposite side of the two positioning boxes 23, while the opposite sides of the two positioning boxes 23 are respectively attached to the inner walls of the two sides of the open groove 17 of the left pressing strip 15. Two sets of snap-fit ​​components are arranged symmetrically in each positioning box 23. The snap-fit ​​components include a second rotating shaft 24 rotatably connected to the bottom surface of the inner wall of the positioning box 23 through a bearing. The axis of the second rotating shaft 24 is perpendicular to the inner wall of the positioning box 23. A rotating bar 25 is fixed to the middle of the second rotating shaft 24 on the bottom surface of the wall. A torsion spring 26 is sleeved on the upper end of the second rotating shaft 24. One end of the torsion spring 26 is connected to the outer wall of the second rotating shaft 24, and the other end is connected to the inner wall of the positioning box 23. The rotating bar 25 can rotate horizontally around the axis of the second rotating shaft 24. One end of the rotating bar 25 forms a hemispherical protrusion 27, and the other end of the rotating bar 25 is fixed with a locking block 28. The locking block 28 and the protrusion 27 are respectively located on opposite sides of the rotating bar 25. Through slots are opened on the side wall of the positioning box 23 at the positions opposite the protrusion 27 and the locking block 28. When all the pressing strips 15 are in the pressed state, the outer wall of the pressing part 16 on the right pushes the two positioning boxes 23 into the interior, both facing the protrusion 27 between the two positioning boxes 23. This causes the locking blocks 28 at the ends of the two rotating strips 25 on the left to also be located inside the positioning boxes 23. The outer wall of the pressing part 16 on the left pushes the two positioning boxes 23 into the interior, both facing the protrusion 27 on the opposite side of the two positioning boxes 23. This causes the locking blocks 28 at the ends of the rotating strips 25 on the right to also be located inside the positioning boxes 23, until one of the pressing strips 15 rotates away and loses the obstruction of the pressing part 16. Then, the torsion spring... Under the action of the rebound force, the rotating bar 25 flips over, and the protrusion 27, having lost its obstruction, extends through the through groove to the outside of the positioning box 23. The snap-fit ​​block 28 rotates through the through groove and snaps into the snap-fit ​​groove 29 on the outer wall of the pressing part 16 of the pressing bar 15, which is still in the pressing state. With the cooperation of the first connecting post 20 and the first connecting hole 19 or the second connecting post 22 and the second connecting hole 21, the pressing frame 18 is connected to the pressing bar 15 in the pressing state. This structure ensures that the pressing frame 18 can be connected to any pressing bar 15 while it is still in the pressing state.

[0040] It should be emphasized that during the process of switching from the pressing state to the avoiding state, the pressing strip 15 moves vertically upward until the first connecting post 20 separates from the first connecting hole 19, or the second connecting post 22 separates from the second connecting hole 21. At this time, the insertion post 14 reaches the bend of the guide groove 1001. Then the pressing strip 15 continues to rise and begins to flip. The process is the opposite when it descends.

[0041] In summary, by utilizing the above structural arrangement, when welding the left side of the top surface of the lithium battery casing, the left-side pressing strip 15 can be flipped to expose the entire welding position on the left side. After welding the left side is completed, the left-side pressing strip 15 flips back onto the pressing frame 18, while the right-side pressing strip 15 flips away to avoid the welding position on the right side. Welding of the right-side welding position continues, ensuring that welding of all positions of the top cover is completed in one go. After welding, the left-side pressing strip 15 flips, causing the pressing frame 18 to leave the welding position, or vice versa. The battery is then removed, and a new battery is installed for welding. Compared with the traditional pressing structure, there is no need for pre-positioning welding followed by two repeated welding actions, reducing welding steps and time, and improving welding efficiency.

[0042] Furthermore, two synchronous bars 30 are symmetrically fixed at the bottom of the right-side pressing strip 15. The ends of the two synchronous bars 30 opposite to the first rotating shaft 12 are rotatably connected to a roller 31 via a pivot pin. A sponge sleeve 32 is fixed to the outer wall of the roller 31. When the right-side pressing strip 15 is in the pressing state, the roller 31 is located between the front and rear supports 2. When the right-side pressing strip 15 flips to the unfolded position, the roller 31 is driven to flip upwards to the side of the square lithium battery casing, but there is a gap between them, and they do not contact each other. However, the visual inspection device detects that the welding is substandard. (The visual inspection device is existing technology and is therefore not shown in the figure. It will not be described in detail. Its arrangement should be such that the weld can be captured.) The guide rod cylinder 11 on the right side is driven to continue to extend, so that the pressing strip 15 on the right side continues to flip outward in the avoidance state. Then the roller 31 is driven to flip and abut against the outer wall of the shell, so that the pigment for marking defective products is applied to the outer wall of the shell. After the application is completed, the guide rod cylinder 11 retracts a certain distance, so that the pressing strip 15 on the right side rotates back until it returns to the avoidance state, thus completing the defective product marking work.

[0043] Subsequently, the first cylinder 5 and the second cylinder 9 retract, releasing the clamping action on the square lithium battery, which can then be removed. A transmission bar 33 is fixed to the bottom surface of the front positioning block 6. The transmission bar 33 extends downwards from the right positioning block 8 and fixes a baffle 34. When the first cylinder 5 and the second cylinder 9 are in the retracted state and the square lithium battery casing is inserted, the baffle 34 is located between the outer wall of the square lithium battery casing and the roller 31. This prevents the casing from contacting the roller 31 and getting contaminated with pigment during the insertion of the square lithium battery. Subsequently, as the first cylinder 5 and the second cylinder 9 extend to position and clamp the square lithium battery, they drive the baffle 34 to move horizontally away from the roller 31, ensuring that defective products can be marked later.

[0044] Furthermore, the ink cartridge 35 is fixed on the right side of the top surface of the base plate 1. Each time the roller 31 flips down, the pressing strip 15 on the right side is in a pressing state, and the roller 31 can enter the ink cartridge 35 to pick up the ink.

[0045] In summary, by using the flipping of the pressing strip 15, the outer casing can be marked when the visual inspection device detects welding defects, so that workers can distinguish between them and avoid confusion between defective and good products.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanical pressing device for new energy batteries, comprising a base plate (1), a rear support (2) and a front support (3) symmetrically fixed to the top surface of the base plate (1), characterized in that, Also includes: The clamping mechanism is installed on the top surface of the rear bracket (2) and the front bracket (3) for clamping the outer shell of the square lithium battery. Two sets of pressing mechanisms are symmetrically arranged on the top surface of the base plate (1) and located between the rear support (2) and the front support (3). Each set of pressing mechanisms includes a U-shaped frame (10) and a pressing strip (15). The U-shaped frame (10) is fixed on the base plate (1), and the pressing strip (15) is connected inside the U-shaped frame (10). When the pressing strip (15) clamps, the pressing part (16) is parallel to the top surface of the shell and located above the shell. The pressing frame (18) is detachably connected to the pressing strip (15) of the two pressing mechanisms and locked to one side of the pressing strip (15) by a snap-fit ​​assembly. When the pressing strip (15) is in the pressing state, its pressing part (16) is connected to the pressing frame (18) to press the pressing frame (18) against the top of the outer shell of the square lithium battery. The pressing strip (15) also has an avoidance state to avoid the welding position.

2. The mechanical pressing device for new energy batteries according to claim 1, characterized in that, The clamping mechanism includes a rear positioning block (4) fixed on the top surface of the rear support (2), a front positioning block (6) slidably connected to the top surface of the front support (3), the front positioning block (6) being driven by a first cylinder (5) to clamp the shell in the length direction with the rear positioning block (4), a left positioning block (7) being fixed on the left side of the rear support (2) and the front support (3), and a right positioning block (8) being slidably connected on the right side, the right positioning block (8) being driven by a second cylinder (9) to clamp the shell in the width direction with the left positioning block (7).

3. The mechanical pressing device for new energy batteries according to claim 2, characterized in that, The pressing mechanism also includes a guide rod cylinder (11), a first rotating shaft (12), a guide side plate (13), and a plug-in post (14). The guide rod cylinder (11) is fixed inside the U-shaped frame (10). The first rotating shaft (12) is rotatably connected to the telescopic end of the guide rod cylinder (11). The two guide side plates (13) are symmetrically fixed at both ends of the first rotating shaft (12). The plug-in post (14) is rotatably connected to the end of the guide side plate (13) away from the first rotating shaft (12) and is slidably inserted into the guide grooves (1001) on both sides of the U-shaped frame (10). The lower end of the pressing strip (15) is fixed to the outer wall of the first rotating shaft (12).

4. The new energy battery mechanical pressing device according to claim 3, characterized in that, The guide groove (1001) includes a vertical section and an inclined section extending away from the clamping position. The plug-in post (14) rises along the vertical section under the drive of the guide rod cylinder (11) and enters the inclined section, causing the pressing strip (15) to flip.

5. The new energy battery mechanical pressing device according to claim 4, characterized in that, An open groove (17) is formed in the middle of the pressing part (16) of the pressing strip (15) on one side, and the pressing part (16) of the pressing strip (15) on the other side is directly opposite to the open groove (17). The pressing frame (18) can be movably inserted into the bottom surface of the two pressing parts (16) on both sides.

6. The new energy battery mechanical pressing device according to claim 5, characterized in that, The snap-fit ​​assembly includes positioning boxes (23) symmetrically fixed on the top surface of the pressing frame (18). The two sets of positioning boxes (23) are distributed front and back. When the pressing strips (15) on both sides are in the pressing posture, the two sets of positioning boxes (23) are located in the open groove (17). The pressing part (16) of the pressing strip (15) on the opposite side of the open groove (17) is located between the two positioning boxes (23). Two sets of flip-locking structures are installed in the positioning box (23) in a centrally symmetrical manner. The two sets of flip-locking structures are used to connect the positioning box (23) to the two pressing parts (16) respectively.

7. The mechanical pressing device for new energy batteries according to claim 6, characterized in that, The flip-locking structure includes a second rotating shaft (24) rotatably connected to the inner wall of the positioning box (23). A rotating bar (25) is fixed in the middle of the second rotating shaft (24). A torsion spring (26) is sleeved on the upper end of the second rotating shaft (24). One end of the torsion spring (26) is fixed to the outer wall of the second rotating shaft (24), and the other end is fixed to the inner wall of the positioning box (23). A hemispherical protrusion (27) is formed at one end of the rotating bar (25), and a snap-fit ​​block (2) is fixed at the other end. 8) The snap-fit ​​block (28) and the protrusion (27) are located on opposite sides of the rotating bar (25). Both the snap-fit ​​block (28) and the protrusion (27) can pass through the positioning box (23) through the through slot opened on the side wall of the positioning box (23) and extend to the outside of the positioning box (23). The side walls of the pressing part (16) on both sides are provided with snap-fit ​​grooves (29). When the pressing part (16) is in the pressing posture, the snap-fit ​​groove (29) and the snap-fit ​​block (28) are opposite to each other.

8. The mechanical pressing device for new energy batteries according to claim 7, characterized in that, A timing bar (30) is symmetrically fixed to the lower end of one of the pressing strips (15) on one side. The lower ends of the two timing bars (30) are rotatably connected to a roller (31). The outer wall of the roller (31) is wrapped with a sponge sleeve (32). An ink cartridge (35) is fixed on the base plate (1). When the pressing strip (15) flips, the roller (31) picks up the ink in the ink cartridge (35) and contacts the outer wall of the outer shell to mark defective products.

9. The mechanical pressing device for new energy batteries according to claim 8, characterized in that, The bottom surface of the front positioning block (6) is fixed with a transmission bar (33). One end of the transmission bar (33) away from the front positioning block (6) extends upward toward the roller (31) and connects to the baffle (34). The first cylinder (5) retracts, and the pressing bar (15) connected to the roller (31) flips to the avoidance state. The baffle (34) blocks the roller (31) between the clamping position and the clamping position.

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