Full-automatic small-size battery laser spot welding machine

Abstract

The full-automatic small-size battery laser spot welding machine comprises a workbench, a material feeding mechanism for feeding raw material batteries is arranged on one side of the workbench, and a material conveying mechanism for conveying the material batteries is arranged on the workbench; one side of the material feeding mechanism is provided with a negative electrode soldering lug cutting mechanism for cutting a negative electrode soldering lug, and one side of the negative electrode soldering lug cutting mechanism is provided with a negative electrode soldering lug clamping mechanism for clamping and carrying the negative electrode soldering lug. One side of the negative electrode soldering lug clamping mechanism is provided with a positive and negative electrode piece laser welding mechanism for performing laser spot welding on a negative electrode soldering lug and a raw material battery, and one side of the positive and negative electrode piece laser welding mechanism is provided with a positive electrode soldering lug cutting mechanism for cutting a positive electrode soldering lug; a positive electrode soldering lug clamping mechanism for clamping and carrying positive electrode soldering lugs is arranged on one side of the positive electrode soldering lug cutting mechanism, and a material bearing and discharging mechanism for bearing and transporting finished batteries is further arranged on the workbench.

Description

Technical Field

[0001] The present invention relates to the field of batteries, in particular to a fully automatic small-size battery laser spot welding machine. Background Art

[0002] Traditionally, button cells and other small-sized batteries are produced on battery pack production lines using manual spot welding, resulting in inconsistent weld quality and low assembly efficiency. With advancements in spot welding equipment technology, sophisticated spot welding machines have become available on the market. However, there is no complete set of equipment to automate the spot welding process for battery packs. Therefore, a fully automatic laser spot welding machine for small-sized batteries has been proposed. Summary of the Invention

[0003] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0004] A fully automatic small-size battery laser spot welding machine includes a workbench, one side of the workbench is provided with a material loading mechanism for loading raw material batteries onto it, and the workbench is provided with a material conveying mechanism for conveying the material batteries in a circular manner, one side of the material loading mechanism is provided with a negative electrode welding piece cutting mechanism for cutting the negative electrode welding piece, and one side of the negative electrode welding piece cutting mechanism is provided with a negative electrode welding piece clamping mechanism for clamping and transporting the cut negative electrode welding piece, one side of the negative electrode welding piece clamping mechanism is provided with a positive and negative electrode welding mechanism for laser spot welding the negative electrode welding piece to the raw material battery, and one side of the positive and negative electrode welding mechanism is provided with a positive electrode welding piece cutting mechanism for cutting the positive electrode welding piece, and one side of the positive electrode welding piece cutting mechanism is provided with a positive electrode welding piece clamping mechanism for clamping and transporting the cut positive electrode welding piece, and the workbench is also provided with a material loading and unloading mechanism for loading and transporting batteries with welded positive and negative welding pieces.

[0005] Preferably, the material loading mechanism includes a fourth workbench arranged on one side of the workbench surface, and a material rack is arranged on one side of the fourth workbench, and material trays containing raw material batteries are stacked inside the material rack, and the material trays can be raised and lowered inside the material rack. A third crossbeam is arranged horizontally on the top of the fourth workbench, and a third movable platform sliding on its side is arranged on one side of the third crossbeam, and a fifth cylinder is arranged on the side of the third movable platform, and a suction cup frame driven by the bottom end of the fifth cylinder for adsorbing the raw material batteries on the material tray is arranged. The material loading mechanism also includes a linear vibrator arranged on one side of the fourth workbench, and a material loading conveyor belt for transmitting the raw material batteries is arranged horizontally on the top of the linear vibrator, and the material loading conveyor belt is located on the side of the material transmission mechanism.

[0006] Preferably, the positive and negative electrode laser welding mechanism includes a first workbench provided on a workbench, and a first laser positioning and adjustment movable platform and a second laser positioning and adjustment movable platform are respectively provided on both sides of a front surface of the first workbench, a first laser spot welder is provided at the bottom end of the first laser positioning and adjustment movable platform and moves synchronously therewith so as to weld the negative electrode welding piece to the raw battery, and a first laser spot welding head is provided at the bottom end of the first laser spot welder for use therewith;

[0007] The bottom end of the second laser positioning and adjusting movable platform is provided with a second laser spot welder which moves synchronously with it and welds the positive electrode welding piece to the raw battery, and the bottom end of the second laser spot welder is provided with a second laser spot welding head which is used in conjunction with it.

[0008] Preferably, the negative electrode welding sheet cutting mechanism includes a negative electrode welding sheet tray fixing frame arranged on one side of the outside of the workbench, and a material coil wrapped with the negative electrode welding sheet strip is rolled on the negative electrode welding sheet tray fixing frame, and a third workbench arranged on the workbench and located on one side of the positive and negative electrode laser welding mechanism, a ninth workbench is arranged on one side of the third workbench, and a second traction guide wheel for traction transmission of the negative electrode welding sheet strip is arranged on the side of the ninth workbench, and a second transmission support platform for supporting the transmission of the negative electrode welding sheet strip is respectively provided at the upper and lower ends of the front side of the ninth workbench, a second limit block for limiting the transmission of the negative electrode welding sheet strip and the second limit block move up and down at the front side of the ninth workbench; the third workbench is provided with a negative electrode welding sheet cutting punch, and a seventh cylinder for driving the negative electrode welding sheet cutting punch to move up and down inside it is provided at the top end of the outside of the third workbench, and the negative electrode welding sheet strip passes through the inside of the third workbench.

[0009] Preferably, the negative electrode welding tab clamping mechanism includes a first swing arm mounting frame arranged on one side of the negative electrode welding tab cutting mechanism, and the first swing arm mounting frame drives a second swing arm, and the end of the second swing arm is provided with a second welding tab positioning fixture for clamping the negative electrode welding tab.

[0010] Preferably, the positive electrode welding sheet cutting mechanism includes a positive electrode welding sheet tray fixing frame arranged on one side of the outside of the workbench, and a material coil wrapped with the positive electrode welding sheet strip is rolled on the positive electrode welding sheet tray fixing frame, and a second workbench arranged on the workbench and located on one side of the positive and negative electrode laser welding mechanism, an eighth workbench is arranged on one side of the second workbench, and a first traction guide wheel for traction transmission of the positive electrode welding sheet strip is arranged on the side of the eighth workbench, and the first transmission support platform for supporting the transmission of the positive electrode welding sheet strip is respectively arranged at the upper and lower ends of the front side of the eighth workbench, a first limit block for limiting the transmission of the positive electrode welding sheet strip and the first limit block moves up and down at the forward side of the eighth workbench; the second workbench is provided with a positive electrode welding sheet cutting punching platform, and a sixth cylinder for driving the positive electrode welding sheet cutting punching platform to move up and down inside it is provided at the top end of the outside of the second workbench, and the positive electrode welding sheet strip passes through the inside of the second workbench.

[0011] Preferably, the positive electrode welding tab clamping mechanism includes a second swing arm mounting frame arranged on one side of the positive electrode welding tab cutting mechanism, and the second swing arm mounting frame drives a first swing arm, and the end of the first swing arm is provided with a first welding tab positioning fixture for clamping the positive electrode welding tab.

[0012] Preferably, the material transfer mechanism includes a fixed platform vertically arranged on the workbench and a turntable that rotates along the periphery of the fixed platform, the turntable is provided with a first mounting seat distributed around the outside of the turntable, and a first pneumatic clamp is laterally arranged on one side of the first mounting seat, and the first pneumatic clamp rotates at the side of the first mounting seat;

[0013] The fixed platform is provided with an eighth cylinder distributed around the outside of the fixed platform, and the eighth cylinder is movably driven and connected to the first pneumatic clamp, and the eighth cylinder can move horizontally on the fixed platform;

[0014] The turntable is also provided with second mounting seats distributed around its outer side, and the second mounting seats are all vertically located on the workbench, and a material placement table is vertically movable at the top of the second mounting seat, and the material placement table is located on the side of each mechanism.

[0015] Preferably, a negative electrode welding tab limiting mechanism for positioning and pressing the negative electrode welding tab is provided on one side of the negative electrode welding tab clamping mechanism, and the negative electrode welding tab limiting mechanism includes a sixth working frame provided on one side of the first swing arm mounting frame, and a second cylinder is provided on one side of the sixth working frame, and the top end of the second cylinder drives a second welding tab positioning block provided on the top end of the sixth working frame to move up and down;

[0016] A positive electrode welding tab limiting mechanism for positioning and pressing the positive electrode welding tab is provided on one side of the positive electrode welding tab clamping mechanism, and the positive electrode welding tab limiting mechanism includes a fifth working frame provided on one side of the second swing arm mounting frame, and a first cylinder is provided on one side of the fifth working frame, and the top end of the first cylinder drives a first welding tab positioning pressing block provided on the top end of the fifth working frame to move up and down.

[0017] Preferably, the material loading and unloading mechanism includes a seventh workbench provided on the workbench and a tray carrying and transporting rack laterally fixed to the side of the seventh workbench, and a carrying and transporting platform for carrying and transporting finished batteries is laterally movable at the top end of the tray carrying and transporting rack, and a material carrying tray for collecting finished batteries is placed on the carrying and transporting platform;

[0018] A battery transport mechanism for transporting batteries is provided on one side of the material loading and unloading mechanism, and the battery transport mechanism includes a sixth workbench vertically arranged on one side of the seventh workbench, a first crossbeam and a second crossbeam are respectively arranged transversely on both sides of the top of the sixth workbench, and a first movable platform for moving on its side is provided on the side of the first crossbeam, and a first suction nozzle for synchronous movement thereof is provided on the side of the first movable platform, and a third cylinder for driving the first suction nozzle to move up and down on its side is also provided on the side of the first movable platform;

[0019] The side of the second beam is provided with a second movable platform for moving on its side, and the side of the second movable platform is provided with a second suction nozzle for moving synchronously therewith, and the side of the second movable platform is also provided with a fourth cylinder for driving the second suction nozzle to move up and down on its side.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the material loading mechanism lifts and transports the raw material battery to the material transmission mechanism, the material transmission mechanism rotates and transports the raw material battery placed above it, and rotates and transports the raw material battery to the bottom of the positive and negative electrode laser welding mechanism, at this time the negative electrode welding sheet clamping mechanism clamps the negative electrode welding sheet cut by the negative electrode welding sheet cutting mechanism above the raw material battery, at this time the positive and negative electrode laser welding mechanism laser welds the negative electrode welding sheet to the raw material battery, and the material transmission mechanism flips the battery welded with the negative electrode welding sheet and the positive electrode welding sheet clamping mechanism simultaneously clamps the positive electrode welding sheet cut by the positive electrode welding sheet cutting mechanism above the flipped raw material battery, at this time the positive and negative electrode laser welding mechanism laser welds the positive electrode welding sheet to the raw material battery, thereby assembling the finished battery, and the material transmission mechanism rotates and transports the finished battery to the material loading and discharging mechanism, and then the finished battery is loaded, collected and transported out by the material loading and discharging mechanism, so that the subsequent finished product batteries can be further processed, which can realize the automation and batch laser welding production of small-size batteries.

[0021] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a structural diagram of a fully automatic small-size battery laser spot welding machine;

[0024] Figure 2 It is a structural diagram of the positive and negative electrode laser welding mechanism;

[0025] Figure 3 It is a structural diagram of the workbench;

[0026] Figure 4 It is a structural diagram of the battery adsorption and transportation mechanism;

[0027] Figure 5 It is a structural diagram of the material feeding mechanism;

[0028] Figure 6 This is a structural diagram of the material loading and discharging mechanism;

[0029] Figure 7 It is a structural diagram of the positive electrode welding sheet cutting mechanism;

[0030] Figure 8 It is a structural diagram of the negative electrode welding sheet cutting mechanism.

[0031] As shown in the figure: 1. Workbench, 2. Positive electrode solder sheet tray fixing frame, 3. First workbench, 4. Second workbench, 5. Negative electrode solder sheet tray fixing frame, 6. Third workbench, 7. Turntable, 8. Tray carrying and transporting frame, 9. Fourth workbench, 10. First laser positioning and adjustment movable platform, 11. First laser spot welding machine, 12. First laser spot welding head, 13. Second laser positioning and adjustment movable platform, 14. Second laser spot welding machine, 15. Second laser spot welding Head, 16, fixed table, 17, first mounting seat, 18, first pneumatic clamp, 19, second mounting seat, 20, material placement table, 21, first swing arm, 22, first welding piece positioning fixture, 23, fifth workbench, 24, first cylinder, 25, first welding piece positioning block, 26, first swing arm mounting frame, 27, second swing arm, 28, second welding piece positioning fixture, 29, sixth workbench, 30, second cylinder, 31, second welding piece positioning block, 32. Sixth workbench, 33. First beam, 34. First moving platform, 35. Third cylinder, 36. First suction nozzle, 37. Second beam, 38. Second moving platform, 39. Fourth cylinder, 40. Second suction nozzle, 41. Third beam, 42. Third moving platform, 43. Fifth cylinder, 44. Suction cup rack, 45. Material rack, 46. Linear vibrator, 47. Material feeding conveyor belt, 48. Seventh workbench, 49. Loading transport platform, 50. Material loading tray, 51, positive electrode welding sheet cutting and punching platform, 52, sixth cylinder, 53, eighth working frame, 54, first limiting block, 55, first transmission support platform, 56, first traction guide wheel, 57, positive electrode welding sheet strip, 58, negative electrode welding sheet cutting and punching platform, 59, seventh cylinder, 60, ninth working frame, 61, second limiting block, 62, second transmission support platform, 63, second traction guide wheel, 64, negative electrode welding sheet strip, 65, second swing arm mounting frame. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-8In the embodiment of the present invention, the fully automatic small-size battery laser spot welding machine includes a workbench 1, a material feeding mechanism for feeding raw material batteries onto the workbench 1 is provided on one side of the workbench 1, and a material conveying mechanism for conveying the material batteries around is provided on the workbench 1, a negative electrode welding piece cutting mechanism for cutting the negative electrode welding piece is provided on one side of the material feeding mechanism, and a negative electrode welding piece clamping mechanism for clamping and conveying the cut negative electrode welding piece is provided on one side of the negative electrode welding piece clamping mechanism, and a negative electrode welding piece clamping mechanism for clamping and conveying the cut negative electrode welding piece is provided on one side of the negative electrode welding piece clamping mechanism. A positive and negative electrode laser welding mechanism is provided for laser spot welding the negative electrode welding sheet to the raw material battery, and a positive electrode welding sheet cutting mechanism for cutting the positive electrode welding sheet is provided on one side of the positive and negative electrode laser welding mechanism, and a positive electrode welding sheet clamping mechanism for clamping and transporting the cut positive electrode welding sheet is provided on one side of the positive electrode cutting mechanism, and then the battery with the negative electrode welding sheet laser welded is connected to the positive electrode welding sheet through the positive and negative electrode laser welding mechanism, and a material loading and unloading mechanism for loading and transporting the battery with the positive and negative welding sheets welded is also provided on the workbench 1.

[0034] Therefore, in a specific implementation scenario, the above mechanism operates as follows:

[0035] When the material loading mechanism lifts and transports the raw material battery to the material conveying mechanism, the material conveying mechanism rotates and transports the raw material battery placed above it, and rotates and transports the raw material battery to the bottom of the positive and negative laser welding mechanism. At this time, the negative electrode welding sheet clamping mechanism clamps the negative electrode welding sheet cut by the negative electrode welding sheet cutting mechanism above the raw material battery. At this time, the positive and negative electrode laser welding mechanism laser welds the negative electrode welding sheet to the raw material battery, and the material conveying mechanism flips the battery with the negative electrode welding sheet welded on it, and the positive electrode welding sheet clamping mechanism simultaneously clamps the positive electrode welding sheet cut by the positive electrode welding sheet cutting mechanism above the flipped raw material battery. At this time, the positive and negative electrode laser welding mechanism laser welds the positive electrode welding sheet to the raw material battery, thereby assembling the finished battery, and the material conveying mechanism rotates and transports the finished battery to the material loading and discharging mechanism, and then the finished battery is loaded, collected and transported out through the material loading and discharging mechanism, so that the subsequent finished battery can be further processed.

[0036] The material loading mechanism includes a fourth workbench 9 arranged on one side of the surface of the workbench 1, and a material rack 45 is arranged on one side of the fourth workbench 9, and a material tray (not shown in the figure) containing raw material batteries is stacked inside the material rack 45, and the material tray can be raised and lowered inside the material rack 45, and a third crossbeam 41 is arranged horizontally on the top of the fourth workbench 9, and a third movable platform 42 is arranged on one side of the third crossbeam 41 for sliding on its side, and a fifth cylinder 43 is arranged on the side of the third movable platform 42, and a suction cup frame 44 is driven by the bottom end of the fifth cylinder 43 to adsorb the raw material batteries on the material tray, the material loading mechanism also includes a linear vibrator 46 arranged on one side of the fourth workbench 9, and a material loading conveyor belt 47 for transmitting the raw material batteries is arranged horizontally on the top of the linear vibrator 46, and the material loading conveyor belt 47 is located at the material conveying mechanism At the side, the raw material batteries can be sent to the material transmission mechanism in turn through the material loading conveyor belt 47 for rotational transmission, and then when the material tray together with the raw material batteries are lifted upward inside the material rack 5, the material tray together with the raw material batteries stop rising when it is horizontally mounted at the top of the material rack 5. At this time, the third movable platform 42 together with the suction cup rack 44 moves to above the material tray, and the fifth cylinder 43 drives the suction cup rack 44 to move downward until the suction cup rack 44 adsorbs the raw material batteries on the material tray. After the suction cup rack 44 adsorbs several raw material batteries, the third movable platform 42 together with the suction cup rack 44 moves to the material loading conveyor belt 47. At this time, the suction cup rack 44 stops adsorbing several raw material batteries, and several raw material batteries fall on the material loading conveyor belt 47, and the several raw material batteries are transported one by one to the material transmission mechanism through the material loading conveyor belt 47, so that the positive and negative electrodes of the raw material batteries can be welded later.

[0037] The positive and negative electrode laser welding mechanism includes a first workbench 3 provided on a workbench 1, and a first laser positioning and adjustment movable platform 10 and a second laser positioning and adjustment movable platform 13 are respectively provided on both sides of the front side of the first workbench 3. A first laser spot welder 11 is provided at the bottom end of the first laser positioning and adjustment movable platform 10, which moves synchronously with the first laser spot welder 10 and welds the negative electrode welding piece to the raw battery. A first laser spot welding head 12 is provided at the bottom end of the first laser spot welder 11 for use with the first laser spot welder 11. When the material conveying mechanism moves the original battery with the negative electrode welding piece placed flat on the surface to the bottom end of the first laser spot welding head 12, the first laser spot welder 11 drives the first laser spot welding head 12 to weld the negative electrode welding piece to the raw battery.

[0038] The bottom end of the second laser positioning and adjustment movable platform 13 is provided with a second laser spot welder 14 which moves synchronously therewith and welds the positive electrode welding piece to the raw material battery, and the bottom end of the second laser spot welder 14 is provided with a second laser spot welding head 15 which is used in conjunction with it. Then, when the material transmission mechanism flips the original battery with the negative electrode welding piece and moves it to the bottom end of the second laser spot welding head 15, the second laser spot welder 14 drives the second laser spot welding head 15 to weld the positive electrode welding piece to the raw material battery with the negative electrode welding piece, so that the raw material battery is processed into a finished battery and then transported out from the bottom of the first workbench 3 through the material transmission mechanism.

[0039] The negative electrode welding sheet cutting mechanism includes a negative electrode welding sheet tray fixing frame 5 arranged on one side of the outside of the workbench 1, and a material roll (not shown in the figure) wrapped with a negative electrode welding sheet strip 64 is rolled on the negative electrode welding sheet tray fixing frame 5, and a third workbench 6 is arranged on the workbench 1 and located on one side of the positive and negative electrode laser welding mechanism, a ninth workbench 60 is arranged on one side of the third workbench 6, and a second traction guide wheel 63 for traction transmission of the negative electrode welding sheet strip 64 is arranged on the side of the ninth workbench 60, and a second transmission support platform 62 for transmission support of the negative electrode welding sheet strip 64, a second limit block 61 for transmission limit of the negative electrode welding sheet strip 64 and a first transmission support platform 62 for transmission support of the negative electrode welding sheet strip 64 are respectively provided at the upper and lower ends of the front side of the ninth workbench 60. The second limit block 61 moves up and down at the forward side of the ninth workbench 60, thereby adjusting the gap between it and the second transmission support platform 62, so as to adapt to the conduction and transportation of negative electrode welding sheet strips 64 of different thicknesses without positional displacement; the third workbench 6 is provided with a negative electrode welding sheet cutting and punching platform 58, and the top end of the outside of the third workbench 6 is provided with a seventh cylinder 59 for driving the negative electrode welding sheet cutting and punching platform 58 to move up and down inside it, and the negative electrode welding sheet strip 64 passes through the inside of the third workbench 6, and then the negative electrode welding sheet cutting and punching platform 58 is driven by the seventh cylinder 59 to move downward inside the third workbench 6, thereby cutting the negative electrode welding sheet strips 64 passing through the third workbench 6 into single negative electrode welding sheets one by one.

[0040] The negative electrode welding tab clamping mechanism includes a first swing arm mounting frame 26 arranged on one side of the negative electrode welding tab cutting mechanism, and the first swing arm mounting frame 26 drives a second swing arm 27, and the end of the second swing arm 27 is provided with a second welding tab positioning fixture 28 for clamping the negative electrode welding tab. Then, when the negative electrode welding tab cutting mechanism cuts out the negative electrode welding tab, the second swing arm 27 together with the second welding tab positioning fixture 28 swings to the side of the negative electrode welding tab cutting mechanism, and clamps the negative electrode welding tab through the second welding tab positioning fixture 28. After the second welding tab positioning fixture 28 clamps the negative electrode welding tab, the second swing arm 27 together with the second welding tab positioning fixture 28 is reset, so that the negative electrode welding tab clamped by the second welding tab positioning fixture 28 is placed horizontally on the raw material battery transmitted by the material transmission mechanism, so that the subsequent positive and negative electrode laser welding mechanism can spot weld the negative electrode welding tab to the raw material battery.

[0041] The positive electrode welding sheet cutting mechanism includes a positive electrode welding sheet tray fixing frame 2 arranged on one side of the outside of the workbench 1, and a material coil (not shown in the figure) wrapped with a positive electrode welding sheet strip 57 is rolled on the positive electrode welding sheet tray fixing frame 2, and a second workbench 4 arranged on the workbench 1 and located on one side of the positive and negative electrode laser welding mechanism, an eighth workbench 53 is arranged on one side of the second workbench 4, and a first traction guide wheel 56 for traction transmission of the positive electrode welding sheet strip 57 is arranged on the side of the eighth workbench 53, and a first transmission support platform 55 for transmission support of the positive electrode welding sheet strip 57, a first limit block 54 for transmission limit of the positive electrode welding sheet strip 57 and a first limit wheel 56 for transmission limit of the positive electrode welding sheet strip 57 are respectively arranged at the upper and lower ends of the front side of the eighth workbench 53. A limit block 54 moves up and down at the forward side of the eighth workbench 53, thereby adjusting the gap between it and the first transmission support platform 55, so as to adapt to the positive electrode solder sheet strips 57 of different thicknesses and not cause positional displacement during transmission; the second workbench 4 is provided with a positive electrode solder sheet cutting and punching platform 51, and the top end of the outer side of the second workbench 4 is provided with a sixth cylinder 52 for driving the positive electrode solder sheet cutting and punching platform 51 to move up and down inside it, and the positive electrode solder sheet strip 57 passes through the inside of the second workbench 4, and then the sixth cylinder 52 drives the positive electrode solder sheet cutting and punching platform 51 to move downward inside the second workbench 4, thereby cutting the positive electrode solder sheet strips 57 passing through the second workbench 4 into single positive electrode solder sheets one by one.

[0042] The positive electrode welding tab clamping mechanism includes a second swing arm mounting frame 65 arranged on one side of the positive electrode welding tab cutting mechanism, and the second swing arm mounting frame 65 drives the first swing arm 21, and the end of the first swing arm 21 is provided with a first welding tab positioning fixture 22 for clamping the positive electrode welding tab, and then when the positive electrode welding tab cutting mechanism cuts out the positive electrode welding tab, the first swing arm 21 together with the first welding tab positioning fixture 22 swings to the side of the positive electrode welding tab cutting mechanism, and clamps the positive electrode welding tab through the first welding tab positioning fixture 22, and after the first welding tab positioning fixture 22 clamps the positive electrode welding tab, the first swing arm 21 together with the first welding tab positioning fixture 22 is reset, so that the positive electrode welding tab clamped by the first welding tab positioning fixture 22 is placed horizontally on the raw material battery transmitted by the material transmission mechanism and welded with the negative electrode welding tab, so that the subsequent positive and negative electrode laser welding mechanism can spot weld the positive electrode welding tab to the raw material battery.

[0043] The material transfer mechanism includes a fixed platform 16 vertically arranged on the workbench 1 and a turntable 7 that rotates and moves along the periphery of the fixed platform 16. The turntable 7 is provided with a first mounting seat 17 distributed around its outer periphery, and a first pneumatic clamp 18 is laterally provided on one side of the first mounting seat 17. The first pneumatic clamp 18 rotates at the side of the first mounting seat 17, and when the turntable 7 rotates on the workbench 1, the first mounting seat 17 and the first pneumatic clamp 18 provided on the side of the first mounting seat 17 are positioned. The position moves, and then when the material loading mechanism transports the raw material battery out, the turntable 7 together with the first mounting seat 17 and the first pneumatic clamp 18 arranged on the side of the first mounting seat 17 moves to the material loading mechanism, and the raw material battery transported out by the material loading mechanism is clamped by the first pneumatic clamp 18. After the first pneumatic clamp 18 clamps the raw material battery, the turntable 7 together with the first mounting seat 17 and the first pneumatic clamp 18 arranged on the side of the first mounting seat 17 and the raw material battery clamped by the first pneumatic clamp 18 are rotated and transported to other mechanisms.

[0044] The fixed table 16 is provided with an eighth cylinder (not shown in the figure) distributed around the outside of the fixed table 16, and the eighth cylinder is movably driven to connect with the first pneumatic clamp 18, and the eighth cylinder can move horizontally on the fixed table 16, so that the turntable 7 together with the first pneumatic clamp 18 rotates to one side of the eighth cylinder, and the eighth cylinder moves out and is movably driven to connect with the first pneumatic clamp 18, driving the first pneumatic clamp 18 to rotate at the outer edge of the turntable 7, so that when the first pneumatic clamp 18 transports the clamped raw material battery to the bottom of the positive and negative laser welding mechanism, and the positive and negative laser welding mechanism welds the positive and negative poles of the raw material battery, the first pneumatic clamp 18 can be flipped by driving the eighth cylinder, so that the positive and negative laser welding mechanism can turn the battery over after welding the negative pole of the raw material battery and the positive and negative laser welding mechanism can continue to weld the positive pole of the battery.

[0045] The turntable 7 is also provided with a second mounting seat 19 distributed around its outer side surface, and the second mounting seats 19 are all vertically located on the workbench 1, and a material placement table 20 is vertically movable on the top of the second mounting seat 19, and the material placement table 20 is located on the side of each mechanism, so that the raw material batteries can be placed and carried through the material placement table 20, so that the raw material batteries can be carried during the processing process.

[0046] A negative electrode welding piece limiting mechanism for positioning and pressing the negative electrode welding piece is provided on one side of the negative electrode welding piece clamping mechanism, and the negative electrode welding piece limiting mechanism includes a sixth working frame 29 provided on one side of the first swing arm mounting frame 26, and a second cylinder 30 is provided on one side of the sixth working frame 29, and the top of the second cylinder 30 drives the second welding piece positioning pressing block 31 provided on the top of the sixth working frame 29 to move up and down, and then when the raw material battery is clamped and transported to the material placement table 20 on one side of the positive and negative electrode laser welding mechanism by the material conveying mechanism, the negative electrode welding piece clamping mechanism clamps the cut negative electrode welding piece onto the raw material battery, and at the same time, the second cylinder 30 drives the second welding piece positioning pressing block 31 to position and press the negative electrode welding piece on On the raw material battery, at this time the negative electrode welding piece clamping mechanism releases the clamping of the negative electrode welding piece, and at this time the positive and negative electrode laser welding mechanism will weld the negative electrode welding piece that is positioned and pressed on the raw material battery to the raw material battery, until the negative electrode welding piece is welded to the raw material battery, the second cylinder 30 drives the second welding piece positioning block 31 to reset, so that the battery with the negative electrode welding piece welded can continue to be transported to the material placement table 20 located on the side of the positive electrode welding piece clamping mechanism through the cooperation between the turntable 7 and the first pneumatic clamp 18, and the first pneumatic clamp 18 turns over the battery with the negative electrode welding piece welded during the clamping process, so that the side with the negative electrode welding piece welded is in contact with the top of the material placement table 20, and the side without the positive electrode welding piece welded is facing up.

[0047] A positive electrode welding piece limiting mechanism for positioning and pressing the positive electrode welding piece is provided on one side of the positive electrode welding piece clamping mechanism, and the positive electrode welding piece limiting mechanism includes a fifth working frame 23 provided on one side of the second swing arm mounting frame 65, and a first cylinder 24 is provided on one side of the fifth working frame 23, and the top of the first cylinder 24 drives the first welding piece positioning pressing block 25 provided on the top of the fifth working frame 23 to move up and down, and then when the battery with the negative electrode welding piece welded is clamped and transported by the material conveying mechanism to the material placement table 20 on one side of the positive and negative electrode laser welding mechanism, the positive electrode welding piece clamping mechanism clamps the cut positive electrode welding piece onto the battery with the negative electrode welding piece welded, and at the same time The first cylinder 24 drives the first welding piece positioning block 25 to position and press the positive electrode welding piece on the battery with the negative electrode welding piece. At this time, the positive electrode welding piece clamping mechanism releases the clamping of the positive electrode welding piece. At this time, the positive and negative electrode laser welding mechanisms will weld the positive electrode welding piece positioned and pressed on the battery with the negative electrode welding piece to the battery. Until the positive electrode welding piece is welded to the battery, the first cylinder 24 drives the first welding piece positioning block 25 to reset, so that the battery with the positive electrode welding piece and the negative electrode welding piece continues to be transported through the matching clamp between the turntable 7 and the first pneumatic clamp 18 to the material placement table 20 located on the side of the material loading and unloading mechanism, so that the finished battery can be collected and loaded later.

[0048] The material loading and unloading mechanism includes a seventh workbench 48 arranged on the workbench 1 and a material tray carrying and transporting rack 8 fixed laterally to the side of the seventh workbench 48, and a carrying and transporting platform 49 for carrying and transporting finished batteries is arranged laterally on the top of the material tray carrying and transporting rack 8, and a material carrying tray 50 for collecting finished batteries is placed on the carrying and transporting platform 49, and then the material carrying tray 50 containing the finished batteries is transported out of the workbench 1 through the cooperation between the carrying and transporting platform 49 and the material tray carrying and transporting rack 8, so that the finished batteries can be further processed later.

[0049] A battery conveying mechanism for conveying batteries is provided on one side of the material loading and discharging mechanism, and the battery conveying mechanism includes a sixth workbench 32 vertically arranged on one side of the seventh workbench 48, and a first crossbeam 33 and a second crossbeam 37 are laterally provided on both sides of the top of the sixth workbench 32, and a first movable platform 34 is provided on the side of the first crossbeam 33 for moving on its side, and a first suction nozzle 36 is provided on the side of the first movable platform 34 for moving synchronously with it, and a third cylinder 35 is also provided on the side of the first movable platform 34 for driving the first suction nozzle 36 to move up and down on its side, so that the first suction nozzle 36 is driven to adsorb the finished batteries placed on the material placement platform 20 through the cooperation between the first movable platform 34 and the third cylinder 35, and then the finished batteries adsorbed by the first suction nozzle 36 are transported and placed on the material carrying tray 50 through the cooperation between the first movable platform 34 and the third cylinder 35, so that the finished batteries can be stored one by one on the material carrying tray 50 for collection.

[0050] The side of the second beam 37 is provided with a second movable platform 38 for moving on its side, and the side of the second movable platform 38 is provided with a second suction nozzle 40 for moving synchronously with it, and the side of the second movable platform 38 is also provided with a fourth cylinder 39 for driving the second suction nozzle 40 to move up and down on its side, and then through the cooperation between the second movable platform 38 and the third and fourth cylinders 39, the second suction nozzle 40 is driven to adsorb the raw materials on the material loading conveyor belt 47, and then through the cooperation between the second movable platform 38 and the third and fourth cylinders 39, the raw material batteries adsorbed by the second suction nozzle 40 are transported and placed on the material placement platform 20, so that the subsequent material transmission mechanism can clamp the raw material batteries and transport them to various mechanisms for positive and negative electrode welding processing.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

Claims

1. Fully automatic small size battery laser spot welding machine, including a workbench, characterized in that: One side of the workbench is provided with a material loading mechanism for loading raw material batteries onto it, and the workbench is provided with a material conveying mechanism for conveying the material batteries in a circular manner, one side of the material loading mechanism is provided with a negative electrode welding piece cutting mechanism for cutting the negative electrode welding piece, and one side of the negative electrode welding piece cutting mechanism is provided with a negative electrode welding piece clamping mechanism for clamping and transporting the cut negative electrode welding piece, one side of the negative electrode welding piece clamping mechanism is provided with a positive and negative electrode sheet laser welding mechanism for laser spot welding the negative electrode welding piece and the raw material battery, and one side of the positive and negative electrode sheet laser welding mechanism is provided with a positive electrode welding piece cutting mechanism for cutting the positive electrode welding piece, and one side of the positive electrode welding piece cutting mechanism is provided with a positive electrode welding piece clamping mechanism for clamping and transporting the cut positive electrode welding piece, and the workbench is also provided with a material loading and unloading mechanism for loading and transporting batteries with welded positive and negative welding pieces.

2. The fully automatic small-size battery laser spot welding machine according to claim 1 is characterized in that: The material loading mechanism includes a fourth workbench arranged on one side of the workbench surface, and a material rack is arranged on one side of the fourth workbench, and material trays containing raw material batteries are stacked inside the material rack, and the material trays can be raised and lowered inside the material rack. A third crossbeam is arranged horizontally on the top of the fourth workbench, and a third movable platform sliding on its side is arranged on one side of the third crossbeam, and a fifth cylinder is arranged on the side of the third movable platform, and a suction cup frame driven by the bottom end of the fifth cylinder for adsorbing the raw material batteries on the material tray is arranged. The material loading mechanism also includes a linear vibrator arranged on one side of the fourth workbench, and a material loading conveyor belt for transmitting the raw material batteries is arranged horizontally on the top of the linear vibrator, and the material loading conveyor belt is located on the side of the material conveying mechanism.

3. The fully automatic small-size battery laser spot welding machine according to claim 1, characterized in that: The positive and negative electrode laser welding mechanism includes a first workbench arranged on a workbench, and a first laser positioning and adjustment movable platform and a second laser positioning and adjustment movable platform are respectively arranged on both sides of a front surface of the first workbench, a first laser spot welder is arranged at the bottom end of the first laser positioning and adjustment movable platform, which moves synchronously with the first laser spot welder and welds the negative electrode welding piece to the raw battery, and a first laser spot welding head is arranged at the bottom end of the first laser spot welder for use with the first laser spot welder; The bottom end of the second laser positioning and adjusting movable platform is provided with a second laser spot welder which moves synchronously with it and welds the positive electrode welding piece to the raw battery, and the bottom end of the second laser spot welder is provided with a second laser spot welding head which is used in conjunction with it.

4. The fully automatic small-size battery laser spot welding machine according to claim 1, characterized in that: The negative electrode welding sheet cutting mechanism includes a negative electrode welding sheet tray fixing frame arranged on one side of the workbench, and a material coil wrapped with a negative electrode welding sheet strip is rolled on the negative electrode welding sheet tray fixing frame, and a third workbench arranged on the workbench and located on one side of the positive and negative electrode laser welding mechanism, a ninth workbench is arranged on one side of the third workbench, and a second traction guide wheel for traction transmission of the negative electrode welding sheet strip is arranged on the side of the ninth workbench, and a second transmission support platform for supporting the transmission of the negative electrode welding sheet strip is respectively arranged at the upper and lower ends of the front side of the ninth workbench, a second limit block for limiting the transmission of the negative electrode welding sheet strip and the second limit block move up and down at the front side of the ninth workbench; the third workbench is provided with a negative electrode welding sheet cutting punch, and a seventh cylinder for driving the negative electrode welding sheet cutting punch to move up and down inside it is provided at the top end of the outside of the third workbench, and the negative electrode welding sheet strip passes through the inside of the third workbench.

5. The fully automatic small-size battery laser spot welding machine according to claim 1, characterized in that: The negative electrode welding tab clamping mechanism includes a first swing arm mounting frame arranged on one side of the negative electrode welding tab cutting mechanism, and the first swing arm mounting frame drives a second swing arm, and the end of the second swing arm is provided with a second welding tab positioning fixture for clamping the negative electrode welding tab.

6. The fully automatic small-size battery laser spot welding machine according to claim 1, characterized in that: The positive electrode welding sheet cutting mechanism includes a positive electrode welding sheet tray fixing frame arranged on one side of the outside of the workbench, and a material coil wrapped with the positive electrode welding sheet strip is rolled on the positive electrode welding sheet tray fixing frame, and a second workbench arranged on the workbench and located on one side of the positive and negative electrode laser welding mechanism, an eighth workbench is arranged on one side of the second workbench, and a first traction guide wheel for traction transmission of the positive electrode welding sheet strip is arranged on the side of the eighth workbench, and a first transmission support platform for supporting the transmission of the positive electrode welding sheet strip is respectively arranged at the upper and lower ends of the front side of the eighth workbench, a first limit block for limiting the transmission of the positive electrode welding sheet strip and the first limit block moves up and down at the front side of the eighth workbench; the second workbench is provided with a positive electrode welding sheet cutting punching platform, and a sixth cylinder for driving the positive electrode welding sheet cutting punching platform to move up and down inside it is provided at the top end of the outside of the second workbench, and the positive electrode welding sheet strip passes through the inside of the second workbench.

7. The fully automatic small-size battery laser spot welding machine according to claim 1, characterized in that: The positive electrode welding tab clamping mechanism includes a second swing arm mounting frame arranged on one side of the positive electrode welding tab cutting mechanism, and the second swing arm mounting frame drives a first swing arm, and the end of the first swing arm is provided with a first welding tab positioning fixture for clamping the positive electrode welding tab.

8. The fully automatic small-size battery laser spot welding machine according to claim 1, characterized in that: The material transfer mechanism includes a fixed platform vertically arranged on the workbench and a turntable that rotates along the periphery of the fixed platform. The turntable is provided with first mounting seats distributed around the outside of the turntable, and a first pneumatic clamp is laterally arranged on one side of the first mounting seat, and the first pneumatic clamp rotates at the side of the first mounting seat. The fixed platform is provided with an eighth cylinder distributed around the outside of the fixed platform, and the eighth cylinder is movably driven and connected to the first pneumatic clamp, and the eighth cylinder can move horizontally on the fixed platform; The turntable is also provided with second mounting seats distributed around its outer side, and the second mounting seats are all vertically located on the workbench, and a material placement table is vertically movable at the top of the second mounting seat, and the material placement table is located on the side of each mechanism.

9. The fully automatic small-size battery laser spot welding machine according to claim 1, characterized in that: A negative electrode welding tab limiting mechanism for positioning and pressing the negative electrode welding tab is provided on one side of the negative electrode welding tab clamping mechanism, and the negative electrode welding tab limiting mechanism includes a sixth working frame provided on one side of the first swing arm mounting frame, and a second cylinder is provided on one side of the sixth working frame, and the top end of the second cylinder drives a second welding tab positioning block provided on the top end of the sixth working frame to move up and down; A positive electrode welding tab limiting mechanism for positioning and pressing the positive electrode welding tab is provided on one side of the positive electrode welding tab clamping mechanism, and the positive electrode welding tab limiting mechanism includes a fifth working frame provided on one side of the second swing arm mounting frame, and a first cylinder is provided on one side of the fifth working frame, and the top end of the first cylinder drives a first welding tab positioning pressing block provided on the top end of the fifth working frame to move up and down.

10. The fully automatic small-size battery laser spot welding machine according to claim 1, characterized in that: The material loading and unloading mechanism includes a seventh workbench arranged on the workbench and a material tray carrying and transporting frame fixed laterally to the side of the seventh workbench, and a material tray carrying and transporting platform for carrying and transporting finished batteries is arranged laterally on the top of the material tray carrying and transporting frame, and a material carrying tray for collecting finished batteries is placed on the carrying and transporting platform; A battery transport mechanism for transporting batteries is provided on one side of the material loading and unloading mechanism, and the battery transport mechanism includes a sixth workbench vertically arranged on one side of the seventh workbench, a first crossbeam and a second crossbeam are respectively arranged transversely on both sides of the top of the sixth workbench, and a first movable platform for moving on its side is provided on the side of the first crossbeam, and a first suction nozzle for synchronous movement thereof is provided on the side of the first movable platform, and a third cylinder for driving the first suction nozzle to move up and down on its side is also provided on the side of the first movable platform; The side of the second beam is provided with a second movable platform for moving on its side, and the side of the second movable platform is provided with a second suction nozzle for moving synchronously therewith, and the side of the second movable platform is also provided with a fourth cylinder for driving the second suction nozzle to move up and down on its side.

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