Numerical control punching equipment suitable for assembling lead-acid storage battery

Abstract

The utility model provides numerical control punching equipment suitable for assembling a lead-acid storage battery, which comprises a machine shell, and a conveying belt mechanism is arranged in the machine shell in a penetrating manner; the at least two punching stations are sequentially arranged in the conveying direction of the conveying belt mechanism; the stopping mechanisms are arranged on all the punching stations; the punching device is arranged above the punching station; the vertical driving mechanism is arranged above the punching device; the waste cleaning station is arranged at the output position of the conveyor belt mechanism, and another stop mechanism is arranged on one side of the waste cleaning station; the waste collecting mechanism is arranged above the waste cleaning station and comprises a clamping jaw device, a turnover device, a lifting device, a negative pressure material suction device and a driving device, and the negative pressure material suction device and the driving device are arranged between the lifting device and the waste cleaning station; according to the scheme, the punching and waste removing processes of the battery shell can be integrally completed, and the overall assembling speed of the battery shell is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control punching equipment, in particular to a numerical control punching equipment suitable for assembling lead-acid batteries. Background Art

[0002] During the production process of lead-acid batteries, multiple partition walls in the battery housing need to be punched before the battery plates are assembled.

[0003] The traditional punching method generally involves manually placing the battery slot upside down on a punching machine, compacting the battery slot on the punching machine, and then starting the punching machine to work. The entire process requires workers to stand and bend for a long time, which is not only labor-intensive but also inefficient.

[0004] To solve the above problems, the prior art discloses a punching machine for battery plastic shells as disclosed in Chinese Publication No. CN215969132U, which includes a frame, a conveyor belt arranged on the frame and used to convey the plastic shell body, an adjusting plate arranged on the frame and located on both sides of the conveyor belt, a fixing component arranged on the two adjusting plates and used to limit the plastic shell body, a punching component arranged above the conveyor belt, a driving component arranged on the frame and driving the punching component to move; a punching component support assembly, a top plate arranged on the support assembly, a first sliding plate arranged opposite to the top plate and slidably connected to the support assembly, a punching cylinder arranged on the support assembly and used to drive the first sliding plate to move, and a punching head arranged on the first sliding plate and close to one side of the top plate.

[0005] The punching machine pushes the first sliding plate horizontally close to the top plate through the punching cylinder, and uses the punching head on the first sliding plate to punch holes in the partition wall in the gap, thereby realizing the punching work of the partition wall in the battery shell. However, in the prior art, the punching equipment for punching holes in the lead-acid battery shell still requires manual emptying and cleaning for the shell cleaning after punching, and the degree of automation and efficiency are low, which is not conducive to increasing the output of lead-acid batteries.

[0006] In view of this, the present invention specially designed a CNC punching device suitable for lead-acid battery assembly, and this case was thus generated. Utility Model Content

[0007] In order to solve the above problems, one of the technical solutions of the utility model is as follows:

[0008] A CNC punching device suitable for lead-acid battery assembly, comprising:

[0009] A casing, in which a conveyor belt mechanism is provided;

[0010] At least two punching stations are arranged in sequence in the transmission direction of the conveyor belt mechanism;

[0011] A stop mechanism is provided at each punching station and is used to stop and position the battery housing;

[0012] A punching device, located directly above each punching station, is used for punching the battery housing partition wall;

[0013] A vertical driving mechanism is arranged directly above each punching device and is used to drive the punching device to move up and down;

[0014] The waste cleaning station is arranged at the output position of the conveyor belt mechanism, and another stop mechanism is arranged on one side of the waste cleaning station;

[0015] The waste collection mechanism is arranged directly above the waste cleaning station, and includes a clamping device, a flipping device for driving the clamping device to rotate, a lifting device for driving the clamping device to rise and fall, a negative pressure suction device, and a driving device for driving the negative pressure suction device to move horizontally, wherein the negative pressure suction device and the driving device are arranged between the lifting device and the waste cleaning station, and the clamping device and the flipping device are lifted and lowered relative to the waste cleaning station under the drive of the lifting device.

[0016] Preferably, the lifting device is a vertical drive device, and includes a fixed plate, a driving motor arranged on the fixed plate, a lifting frame that slides vertically through the fixed plate, and a screw mechanism arranged in the middle of the fixed plate. The screw mechanism is transmission-connected to the driving motor and its output end is movably connected to the lifting frame to drive the lifting frame to achieve lifting.

[0017] Preferably, a pair of mounting plates extend from the lower end of the lifting frame, the flipping device is arranged on the inner side of one of the mounting plates and opposite to the other mounting plate, a clamping cylinder is provided on the side of the other mounting plate away from the flipping device, the output shaft of the clamping cylinder passes through the mounting plate and is fixed with a connecting plate, an elastic clamping structure is provided on the side of the connecting plate close to the flipping device, a clamping plate is provided at the output end of the flipping device, and the elastic clamping structure, the connecting plate, the clamping plate and the clamping cylinder constitute the clamping device.

[0018] Preferably, the flipping device is a rotary cylinder, and the clamping plate is fixed on the output end of the rotary cylinder.

[0019] Preferably, the elastic clamping structure includes a base, a clamping seat, a plurality of guide rods arranged between the base and the clamping seat, and a plurality of clamping springs. The base and the clamping seat are arranged in a colinear manner, an end of the guide rod is fixed to the side wall of the clamping seat and the other end thereof passes through the base, a plurality of the clamping springs are sleeved on the outside of the guide rod and the two ends are respectively movably abutted against the base and the side wall of the clamping seat, and the end of the guide rod forms a limit at one end of the base away from the clamping seat so that the clamping seat has the farthest distance away from the base.

[0020] Preferably, a flexible cushion layer is provided on the side of the pressing seat close to the clamping plate, and a plurality of grid-like patterns are provided on the surface of the flexible cushion layer.

[0021] Preferably, linear bearings penetrating the mounting plate are symmetrically provided on both sides of the clamping jaw cylinder of the mounting plate. A connecting shaft is provided on the linear bearing, and one ends of the two connecting shafts are fixed to both sides of the connecting plate, and a synchronous connecting rod is provided between the other ends of the two connecting shafts.

[0022] Preferably, the synchronous connecting rod is in a "C" shape, and both ends of its bottom are respectively fixed to the ends of the connecting shaft, and a让位区域 is formed in the middle of the synchronous connecting rod.

[0023] Preferably, the negative pressure suction device includes a tipping hopper, a negative pressure suction box, and a connecting hose connecting the negative pressure suction box and the tipping hopper. The driving device includes a fixed bottom plate, a linear cylinder provided on the fixed bottom plate, and an auxiliary guide rail arranged parallel to the linear cylinder. A working slot for the clamping jaw device to pass through is provided through the fixed bottom plate between the auxiliary guide rail and the linear cylinder. Both sides of the tipping hopper slide on the auxiliary guide rail and the output end of the linear cylinder respectively.

[0024] Preferably, a negative pressure generating device is provided in the negative pressure suction box, and a transparent observation window is provided on the outer side of its main body.

[0025] The beneficial effects of the present invention are as follows:

[0026] In this solution, different punching stations are provided on the conveyor belt mechanism in the casing to punch the casing of the lead-acid battery. A waste collection mechanism is provided at the output position of the conveyor belt mechanism. The clamping jaw device is used to grab the battery casing. After punching, the battery casing is lifted by the lifting device. Then, the driving device drives the negative pressure suction device to horizontally move under the battery casing, and then the battery casing is flipped through the flipping device to pour the punching waste in the battery casing into the negative pressure suction device. The negative pressure suction device is moved away, and the battery casing is placed back on the conveyor belt mechanism again, completing the punching and waste removal process of the battery casing, and improving the overall assembly speed of the battery casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute an improper limitation to the present invention.

[0028] Among them:

[0029] Figure 1 is the overall structural schematic diagram of the present invention;

[0030] Figure 2It is a partial structural schematic diagram highlighting the conveyor belt mechanism in the utility model;

[0031] Figure 3 It is a partial structural schematic diagram highlighting the vertical drive mechanism and the punching device in the utility model;

[0032] Figure 4 It is one of the partial structural diagrams highlighting the waste collection mechanism in the utility model;

[0033] Figure 5 This is the second partial structural diagram of the waste collection mechanism in the utility model;

[0034] Figure 6 It is a partial structural schematic diagram highlighting the negative pressure suction device and the driving device in the utility model.

[0035] Description of labels:

[0036] 10. Casing; 11. Conveyor mechanism; 12. Punching station; 13. Waste cleaning station; 20. Stop mechanism; 30. Punching device; 40. Vertical drive mechanism; 50. Waste collecting mechanism; 51. Clamping device; 511. Clamping cylinder; 512. Output shaft; 513. Connecting plate; 514. Elastic clamping structure; 5141. Base; 5142. Clamping seat; 5143. Guide rod; 5144. Clamping spring; 5145. Flexible cushion layer; 5146. Grid pattern; 515. Clamping plate; 516. Linear bearing; 517, connecting shaft; 518, synchronous connecting rod; 519, rotating seat; 52, flipping device; 53, lifting device; 531, fixed plate; 532, driving motor; 533, lifting frame; 534, screw mechanism; 54, negative pressure suction device; 541, pouring hopper; 542, negative pressure suction box; 543, connecting hose; 544, connecting edge; 55, driving device; 551, fixed bottom plate; 552, linear cylinder; 553, auxiliary guide rail; 554, working groove; 555, output seat; 556, sliding seat; 56, mounting plate. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] Embodiment 1

[0039] A CNC punching device suitable for lead-acid battery assembly, such as Figure 1-6 As shown, including:

[0040] The housing 10 has a conveyor belt mechanism 11 therein;

[0041] At least two punching stations 12 are arranged in sequence in the transmission direction of the conveyor belt mechanism 11;

[0042] The stop mechanism 20 is provided on each punching station 12 and is used to stop and position the battery housing. In this embodiment, the stop mechanism 20 is extended by a cylinder to limit and clamp the battery housing.

[0043] A punching device 30 is provided directly above each punching station 12 and is used for punching the battery housing partition wall;

[0044] A vertical driving mechanism 40 is disposed directly above each punching device 30 and is used to drive the punching device 30 to move up and down;

[0045] The waste cleaning station 13 is arranged at the output position of the conveyor belt mechanism 11, and another stop mechanism 20 is arranged on one side of the waste cleaning station 13;

[0046] The waste collection mechanism 50 is arranged directly above the waste cleaning station 13, and includes a clamping device 51, a flipping device 52 for driving the clamping device 51 to rotate, a lifting device 53 for driving the clamping device 51 to rise and fall, a negative pressure suction device 54, and a driving device 55 for driving the negative pressure suction device 54 to move horizontally, wherein the negative pressure suction device 54 and the driving device 55 are arranged between the lifting device 53 and the waste cleaning station 13, and the clamping device 51 and the flipping device 52 are lifted and moved relative to the waste cleaning station 13 under the drive of the lifting device 53.

[0047] In this embodiment, two punching stations 12 are provided, which are arranged in sequence in the transmission direction of the conveyor belt mechanism 11, and two stop mechanisms 20, vertical drive mechanisms 40 and punching devices 30 are provided respectively, so that dual punching stations 12 work simultaneously.

[0048] Preferably, Figure 2 , 3As shown, the lifting device 53 is a vertical driving device 55, and includes a fixed plate 531, a driving motor 532 arranged on the fixed plate 531, a lifting frame 533 that slides vertically through the fixed plate 531, and a screw mechanism 534 arranged in the middle of the fixed plate 531. The screw mechanism 534 is connected to the driving motor 532 in a transmission manner and its output end is movably connected to the lifting frame 533 to drive the lifting frame 533 to achieve lifting. The screw mechanism 534 is a common mechanism based on the screw vertical driving principle. The driving motor 532 is connected to the screw mechanism 534 through a toothed belt to achieve transmission. Therefore, the screw mechanism 534 is driven to rotate by the driving motor 532, and the output end of the screw mechanism 534 drives the lifting frame 533 to move up and down relative to the fixed plate 531, thereby facilitating the lifting of the punching device 30 and the clamping device 51 and the flipping device 52.

[0049] Preferably, Figure 4 , 5 As shown, a pair of mounting plates 56 extend from the lower end of the lifting frame 533, and the turning device 52 is arranged on the inner side of one of the mounting plates 56 and opposite to the other mounting plate 56. A clamping cylinder 511 is provided on the side of the other mounting plate 56 away from the turning device 52. The clamping cylinder 511 has an output shaft 512, one end of the output shaft 512 passes through the mounting plate 56 and is fixed with a connecting plate 513, and an elastic clamping structure 514 is provided on the side of the connecting plate 513 close to the turning device 52. A clamping plate 515 is provided at the output end of the turning device 52. The elastic clamping structure 514, the connecting plate 513, the clamping plate 515 and the clamping cylinder 511 constitute a clamping device 51, so that the horizontal movement of the connecting plate 513 is realized by the extension and contraction of the clamping cylinder 511, thereby reducing or increasing the distance between the connecting plate 513 and the clamping plate 515, and finally facilitating the elastic clamping or loosening of the battery shell.

[0050] Preferably, Figure 5 As shown, the turning device 52 is a rotating cylinder, and the clamping plate 515 is fixed on the output end of the rotating cylinder, so that the battery shell can be easily rotated and the material is unloaded through the rotating cylinder.

[0051] Preferably, Figure 5As shown, the elastic clamping structure 514 includes a base 5141, a clamping seat 5142, a plurality of guide rods 5143 and a plurality of clamping springs 5144 arranged between the base 5141 and the clamping seat 5142. In this embodiment, the base 5141 and the clamping seat 5142 are both in the shape of a flat cylinder, the guide rod 5143 is a columnar rod and is evenly distributed around the circumference of the base 5141 and the clamping seat 5142, the base 5141 and the clamping seat 5142 are arranged in a colinear manner, the end of the guide rod 5143 is fixed to the side wall of the clamping seat 5142 and the other end thereof passes through the base 5141, the plurality of clamping springs 5144 are sleeved on the outside of the guide rod 5143 and the two ends are movably abutted against the side walls of the base 5141 and the clamping seat 5142 respectively, and the end of the guide rod 5143 is away from the clamping seat 5142 at the base 5141. One end of the seat 5142 forms a limit so that the clamping seat 5142 has a maximum distance away from the base 5141 (not shown in the figure). In this embodiment, the end of the elastic clamping structure 514 is rotatably connected to the connecting plate 513 through the rotating seat 519, so as to cooperate with the flipping device 52 to rotate the battery shell, which is convenient for unloading the battery shell. In addition, when the clamping claw cylinder 511 drives the connecting plate 513 to move toward the clamping plate 515, the clamping claw seat 5142 first contacts the side wall of the battery shell, and as the clamping claw cylinder 511 continues to extend, the base 5141 continues to move toward the clamping claw seat 5142, the clamping spring 5144 is compressed, and the end of the guide rod 5143 exceeds the side wall of the base 5141, thereby finally achieving elastic compression of the battery shell to avoid damage to the battery shell.

[0052] Preferably, combined Figure 4 A flexible pad layer 5145 is provided on one side of the pressing seat 5142 close to the clamping plate 515, and a plurality of grid-like patterns 5146 are provided on the surface of the flexible pad layer 5145. In this embodiment, the flexible pad layer 5145 is a rubber pad layer or a silicone pad layer, so that the relatively soft flexible pad layer 5145 can make flexible contact with the battery shell, thereby further avoiding scratching the battery.

[0053] Preferably, Figure 3 , 5 As shown, the mounting plate 56 is symmetrically provided with linear bearings 516 penetrating the mounting plate 56 on both sides of the clamping cylinder 511, and a connecting shaft 517 is provided on the linear bearing 516. One end of the two connecting shafts 517 are fixed on both sides of the connecting plate 513 and a synchronous connecting rod 518 is provided between the other ends of the two connecting shafts 517. Therefore, the clamping cylinder 511 drives the connecting plate 513 to guide through the linear bearings 516, so that it slides more smoothly, and the two connecting shafts 517 are synchronously connected through the synchronous connecting rod 518, so that the guided sliding process of the connecting shaft 517 is more stable and smooth.

[0054] Preferably, Figure 5As shown, the synchronous connecting rod 518 is in a "C" shape, and both ends of its bottom are respectively fixed to the ends of the connecting shaft 517. A让位区域 (not marked in the figure) is formed in the middle of the synchronous connecting rod 518, so as to make way for the connecting part of the jaw cylinder 511 through the让位区域, enabling smooth operation at each position.

[0055] Preferably, as Figure 2 , 6 shown, the negative pressure suction device 54 includes a blanking hopper 541, a negative pressure suction box 542, and a connecting hose 543 connecting the negative pressure suction box 542 and the blanking hopper 541. The driving device 55 includes a fixed bottom plate 551, a linear cylinder 552 provided on the fixed bottom plate 551, and an auxiliary guide rail 553 arranged in parallel with the linear cylinder 552. An opening for discharging materials (not marked in the figure) is formed at the bottom of the blanking hopper 541. The fixed bottom plate 551 is provided with a working slot 554 for the jaw device 51 to pass through between the auxiliary guide rail 553 and the linear cylinder 552. Both sides of the blanking hopper 541 slide on the output ends of the auxiliary guide rail 553 and the linear cylinder 552 respectively. In this embodiment, connecting edges 544 are provided on both sides of the blanking hopper 541. The linear cylinder 552 has an output seat 555, and the auxiliary guide rail 553 is provided with a sliding seat 556. The connecting edges 544 on both sides of the blanking hopper 541 are respectively fixed to the output seat 555 and the sliding seat 556. Thus, through the operation of the linear cylinder 552, the output seat 555 drives the blanking hopper 541 to slide along the output direction of the linear cylinder 552, and the auxiliary guide rail 553 assists in guiding its sliding process, making its sliding process smoother, so as to conveniently realize the horizontal movement of the blanking hopper 541 on the working slot 554, realize the making way for the jaw device 51 and the flipping and discharging of the battery case.

[0056] Preferably, as Figure 6 shown, a negative pressure generating device is provided inside the negative pressure suction box 542, and a transparent observation window (not marked in the figure) is provided on the outer side of its main body. The negative pressure generating device is such as a negative pressure fan, a vacuum pump, etc. Thus, the negative pressure suction box 542 transmits the negative pressure suction force to the opening at the bottom of the blanking hopper 541 through the connecting hose 543, adsorbs the waste materials in the battery case poured by the flipping device 52, and enables them to smoothly fall into the negative pressure suction box 542 along the connecting hose 543 for unified collection, facilitating the subsequent cleaning process.

[0057] In particular, the punching device 30 in the present embodiment can adopt a cylinder horizontal straight-push type punching device 30, or a lever type punching device 30. The lever type punching device 30 is preferred. The lever type punching device 30 is driven by a micro cylinder. On the one hand, it can fully reduce the volume occupied by the punching device 30 as a whole, providing a basis for the setting of multiple stations of the assembly line. On the other hand, it can also better transmit the thrust and keep the thrust constant, accurately control the punching force, and fully maintain the quality balance between batches of products.

[0058] The beneficial effects of the utility model are as follows:

[0059] This solution punches the shell of the lead-acid battery by setting different punching stations 12 on the conveyor mechanism 11 in the casing 10, and sets a waste collection mechanism 50 at the output position of the conveyor mechanism 11, grabs the battery shell by the clamping claw device 51, and lifts the battery shell by the lifting device 53 after the punching is completed, and then the driving device 55 drives the negative pressure suction device 54 to move horizontally to the bottom of the battery shell, and then the battery shell is flipped by the flipping device 52, and the punching waste in the battery shell is poured into the negative pressure suction device 54, the negative pressure suction device 54 is removed, and the battery shell is placed back on the conveyor mechanism 11, completing the punching and waste removal process of the battery shell, thereby improving the speed of the overall assembly of the battery shell.

[0060] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A CNC punching equipment suitable for lead-acid battery assembly, It is characterized in that include: A casing (10) having a conveyor belt mechanism (11) disposed therein; At least two punching stations (12) are arranged in sequence in the transmission direction of the conveyor belt mechanism (11); A stop mechanism (20) is provided on each punching station (12) and is used for stopping and positioning the battery housing; A punching device (30) is provided directly above each punching station (12) and is used for punching holes in the partition wall of the battery housing; A vertical driving mechanism (40) is disposed directly above each punching device (30) and is used to drive the punching device (30) to move up and down; A waste cleaning station (13) is arranged at the output position of the conveyor belt mechanism (11), and another stop mechanism (20) is arranged on one side of the waste cleaning station (13); The waste collecting mechanism (50) is arranged directly above the waste cleaning station (13), and comprises a clamping device (51), a flipping device (52) for driving the clamping device (51) to rotate, a lifting device (53) for driving the clamping device (51) to rise and fall, a negative pressure suction device (54), and a driving device (55) for driving the negative pressure suction device (54) to move horizontally, wherein the negative pressure suction device (54) and the driving device (55) are arranged between the lifting device (53) and the waste cleaning station (13), and the clamping device (51) and the flipping device (52) are lifted and moved relative to the waste cleaning station (13) under the drive of the lifting device (53).

2. A CNC punching device suitable for lead-acid battery assembly according to claim 1, It is characterized in that The lifting device (53) is a vertical driving device (55), and comprises a fixed plate (531), a driving motor (532) arranged on the fixed plate (531), a lifting frame (533) vertically slidingly penetrating the fixed plate (531), and a screw mechanism (534) arranged in the middle of the fixed plate (531), wherein the screw mechanism (534) is drivingly connected to the driving motor (532) and an output end thereof is movably connected to the lifting frame (533) to drive the lifting frame (533) to achieve lifting.

3. A CNC punching device suitable for lead-acid battery assembly according to claim 2, It is characterized in that A pair of mounting plates (56) extend from the lower end of the lifting frame (533); the flipping device (52) is arranged on the inner side of one of the mounting plates (56) and opposite to the other mounting plate (56); a clamping cylinder (511) is provided on the side of the other mounting plate (56) away from the flipping device (52); an output shaft (512) of the clamping cylinder (511) passes through the mounting plate (56) and is fixed with a connecting plate (513); an elastic clamping structure (514) is provided on the side of the connecting plate (513) close to the flipping device (52); a clamping plate (515) is provided at the output end of the flipping device (52); the elastic clamping structure (514), the connecting plate (513), the clamping plate (515) and the clamping cylinder (511) constitute the clamping device (51).

4. A numerical control punching device applicable to the assembly of lead-acid batteries according to claim 3, characterized in that, the flipping device (52) is a rotary cylinder, and the clamping plate (515) is fixed to the output end of the rotary cylinder.

5. A numerical control punching device applicable to the assembly of lead-acid batteries according to claim 3, characterized in that, the elastic pressing structure (514) includes a base (5141), a pressing seat (5142), a plurality of guide rods (5143) arranged between the base (5141) and the pressing seat (5142), and a plurality of pressing springs (5144). The base (5141) and the pressing seat (5142) are arranged collinearly. The end of the guide rod (5143) is fixed to the side wall of the pressing seat (5142), and the other end thereof penetrates through the base (5141). A plurality of the pressing springs (5144) are sleeved outside the guide rod (5143), and both ends thereof are respectively movably abutted against the side walls of the base (5141) and the pressing seat (5142). The end of the guide rod (5143) forms a limit at one end of the base (5141) away from the pressing seat (5142) so that the pressing seat (5142) has a maximum distance away from the base (5141).

6. A numerical control punching device applicable to the assembly of lead-acid batteries according to claim 5, characterized in that, a flexible cushion layer (5145) is provided on the side of the pressing seat (5142) close to the clamping plate (515), and a plurality of grid-like patterns (5146) are provided on the surface of the flexible cushion layer (5145).

7. A numerical control punching device applicable to the assembly of lead-acid batteries according to claim 3, characterized in that, linear bearings (516) penetrating through the mounting plate (56) are symmetrically provided on both sides of the clamping jaw cylinder (511) of the mounting plate (56). A connecting shaft (517) is provided on the linear bearing (516). One ends of the two connecting shafts (517) are fixed to both sides of the connecting plate (513), and a synchronous connecting rod (518) is provided between the other ends of the two connecting shafts (517).

8. A numerical control punching device applicable to the assembly of lead-acid batteries according to claim 7, characterized in that, the synchronous connecting rod (518) is in a "C" shape, and both ends of its bottom are respectively fixed to the ends of the connecting shaft (517). A让位区域 is formed in the middle of the synchronous connecting rod (518).

9. A numerical control punching device applicable to the assembly of lead-acid batteries according to claim 1, characterized in that, The negative pressure suction device (54) includes a dump hopper (541), a negative pressure suction box (542) and a connecting hose (543) connecting the negative pressure suction box (542) and the dump hopper (541); the driving device (55) includes a fixed base plate (551), a linear cylinder (552) arranged on the fixed base plate (551) and an auxiliary guide rail (553) arranged parallel to the linear cylinder (552); the fixed base plate (551) is provided with a working groove (554) between the auxiliary guide rail (553) and the linear cylinder (552) for the clamping device (51) to pass through; the two sides of the dump hopper (541) slide on the output ends of the auxiliary guide rail (553) and the linear cylinder (552) respectively.

10. A CNC punching device suitable for lead-acid battery assembly according to claim 9, It is characterized in that The negative pressure suction box (542) is provided with a negative pressure generating device, and a transparent observation window is provided on the outside of the main body.

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