Automatic assembling production line for lithium battery module

Abstract

The invention discloses an automatic lithium battery module assembling production line, and belongs to the field of lithium battery assembling. An automatic lithium battery module assembling production line comprises a workbench and a mounting frame mounted on the workbench, and further comprises an assembling driving mechanism arranged on the mounting frame and used for adjusting the height of an end plate and the distance between the end and a side plate and a lithium battery module; the end plate taking and placing frame is arranged on the assembly driving mechanism, a side plate taking and placing frame is arranged on the assembly driving mechanism, release mechanisms are arranged on the end plate taking and placing frame and the side plate taking and placing frame, and when the end plate and the side plate are moved to the side edge of the lithium battery module, the release mechanisms are used for attaching the end plate and the side plate to the lithium battery module; the fixing part is fixedly connected to the side plate taking and placing frame, and a welding mechanism is arranged on the fixing part and used for welding the end plates and the side plates to the lithium battery module; the problems of low efficiency, large occupied space and high assembly cost of automatic assembly of the lithium battery module can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery assembly, and in particular to an automatic assembly production line for lithium battery modules. Background Art

[0002] A lithium battery module combines multiple lithium-ion single cells in parallel and series to form a complete battery system, which is connected in series and parallel to meet specific voltage and capacity requirements.

[0003] The assembly of lithium battery modules is a key link in battery system manufacturing. It can not only increase voltage and capacity through series-parallel combinations to meet the power requirements of different equipment, but also optimize the energy density of the battery pack to achieve maximum energy storage; at the same time, it can improve the safety of lithium batteries and reduce the risks of collision and puncture.

[0004] Currently, when assembling lithium battery modules, mechanical grippers are usually used to grab individual battery cells to designated positions one by one, and then grab the entire battery cell group to a workbench. The end plates and side plates are then grabbed to the four sides of the battery cell group. After squeezing, the joints between the end plates and the side plates are welded. After welding, the product is grabbed to another work area for assembly of the bottom plate and top plate. During the entire process, most of the automatic assembly is achieved by mechanical grippers, which not only has low assembly efficiency but also requires a large space, greatly increasing the cost of automatic assembly of lithium battery modules. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems of low efficiency, large space occupation and high assembly cost of lithium battery module automatic assembly in the prior art, and to propose an automatic assembly production line for lithium battery modules.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A lithium battery module automatic assembly production line includes a workbench and a mounting frame installed on the workbench, and also includes: an assembly drive mechanism, which is arranged on the mounting frame and is used to adjust the height of the end plate and the distance between the end and side plates and the lithium battery module; an end plate pick-up and placement frame, which is arranged on the assembly drive mechanism, and a side plate pick-up and placement frame is provided on the assembly drive component, wherein the end plate pick-up and placement frame and the side plate pick-up and placement frame are both provided with a release mechanism, which is used to fit the end plate and the side plate to the lithium battery module when the end plate and the side plate are moved to the side of the lithium battery module; a fixing member, which is fixedly connected to the side plate pick-up and placement frame, and the fixing member is provided with a welding mechanism for welding the end plate and the side plate to the lithium battery module; a material taking mechanism, which is arranged on the mounting frame and is used to take out the lithium battery module after assembly is completed.

[0008] In order to facilitate the transportation of lithium battery modules, preferably, the assembly drive mechanism includes multiple groups of first electric push rods symmetrically fixedly connected to the mounting frame, the ends of the first electric push rods are fixedly connected with movable mounting plates, multiple groups of second electric push rods are fixedly connected on the side of the movable mounting plates close to each other, the end plate pick-and-place frame is fixedly connected to the ends of the second electric push rods, multiple groups of third electric push rods are symmetrically fixedly connected to the inner side of the mounting frame, the side plate pick-and-place frame is fixedly connected to the ends of the third electric push rods, and the second electric push rods and the third electric push rods are vertically arranged.

[0009] In order to reduce the friction on the lithium battery module during transportation, it further includes a conveying device symmetrically fixedly connected to the workbench along one side of the end plate pick-up and placement frame, and multiple sets of guide wheels are provided on the workbench, and the rotation direction of the guide wheels is the same as the conveying direction of the conveying device.

[0010] In order to facilitate the fitting of the end plate and the side plate to the battery cell group, the release mechanism further includes multiple groups of first springs fixedly connected to the inner walls of the end plate pick-up and placement frame and the side plate pick-up and placement frame, the ends of the first springs are fixedly connected to the pressure plates, the outer walls of the side plate pick-up and placement frame are symmetrically fixedly connected to the fixing parts, the ends of the fixing parts and the outer walls of the end plate pick-up and placement frame are provided with a receiving groove, the interior of the receiving groove is fixedly connected to a second spring, the end of the second spring is fixedly connected to a telescopic part or a pressure block slidably connected to the receiving groove, the interior of the end plate pick-up and placement frame and the interiors of the fixing parts and the side plate pick-up and placement frame are all provided with a connecting channel connected to the receiving groove.

[0011] In order to release a single group of end plates and side plates at a time, it further includes grooves symmetrically opened on the inner walls of the end plate picking and placing frame and the side plate picking and placing frame, the inner sliding connection of the grooves is connected to a limit block, and a third spring is fixedly connected between the limit block and the grooves, and a slide groove connected to the groove is opened inside the end plate picking and placing frame and the side plate picking and placing frame, and a slide connected to the limit block is slidably connected inside the slide groove, and a guide groove is opened on the slide, wherein the end of the connecting channel is connected to the slide groove, and the interior of the connecting channel is slidably connected to a driving block, and the end of the driving block is located inside the guide groove, and the guide groove is inclined away from the side of the limit block.

[0012] In order to facilitate welding of the connection between the end plate and the side plate, the welding mechanism further includes an electric slide rail arranged on the fixing part, the electric slide rail is internally slidably connected to an electric slider, the electric slider is fixedly connected to a fixing frame on the side close to the side plate pick-up and placement frame, an adjustment groove is provided on the fixing frame, the adjustment groove is internally slidably connected to a welding device, and the output end of the welding device is connected to a welding head, wherein an adjustment component is provided between the fixing part and the fixing frame for adjusting the height of the welding head during welding.

[0013] In order to ensure the welding effect of the end plate and the side plate, the adjustment assembly further includes a positioning groove opened on the side of the fixing part close to the fixed frame, a fixed rack is fixedly connected at the lower part of the positioning groove, a mounting groove is opened on the side of the fixing frame close to the positioning groove, and multiple sets of driving gears are rotatably connected inside the mounting groove, a connecting groove connected to the adjusting groove and the mounting groove is opened inside the fixing frame, a connecting plate slidably connected to the connecting groove is fixedly connected to the welding equipment, and a movable rack meshing with the driving gear is fixedly connected to the connecting plate.

[0014] In order to improve the stability of welding, further, when the electric slider is located above the electric slide rail, the height of the end of the welding head is higher than the height of the lithium battery module, and a friction block is provided on the outer wall of the welding equipment. The friction between the outer wall of the welding equipment and the inner wall of the adjustment groove is greater than the gravity of the welding equipment. The welding head is arranged at an angle, and when the welding head moves to the bottom of the adjustment groove, the end of the welding head matches the bottom of the side wall of the lithium battery module.

[0015] In order to facilitate the removal of the lithium battery module according to its assembly status, the material-retrieving mechanism further includes a lifting gear plate fixedly connected to one of the sets of movable mounting plates, the mounting frame is provided with a hole matching the lifting gear plate, the mounting frame is connected to a rotation on the side close to the lifting gear plate, the shaft end of the sector gear is fixedly connected to a driving wheel, and the sector gear is meshed with the lifting gear plate.

[0016] In order to facilitate the removal of the assembled lithium battery module, it further includes a push plate rotatably connected to the mounting frame, a spring plate is fixedly connected between the push plate and the mounting frame, the shaft end of the push plate is fixedly connected to a driven wheel, a belt is sleeved between the driving wheel and the driven wheel, and a hole matching the belt is opened on the mounting frame.

[0017] Compared with the prior art, the present invention provides an automatic assembly line for lithium battery modules, which has the following beneficial effects:

[0018] 1. This automatic assembly line for lithium battery modules can ensure stable transportation of the battery cell groups according to the transportation conditions of the battery cell groups through the assembly drive mechanism, while also facilitating the assembly of the end plates on the battery cell groups. In addition, the end plate pick-and-place frame and the side plate pick-and-place frame can simultaneously accommodate multiple groups of end plates and side plates to ensure the continuity of lithium battery module assembly, which not only improves the assembly efficiency of the lithium battery modules, but also reduces the space required for the assembly of the lithium battery modules, thereby greatly reducing the assembly cost of the lithium battery modules.

[0019] 2. This lithium battery module automatic assembly production line can release a set of end plates and side plates correspondingly when assembling a single lithium battery module through the release mechanism, and automatically weld the connection between the end plates and side plates when they reach the specified position. This not only simplifies the assembly process of the lithium battery module, but also ensures the welding quality of the end plates and side plates.

[0020] 3. The automatic assembly production line of lithium battery modules can drive the material taking mechanism through the assembly drive mechanism to take the assembled lithium battery modules out of the workbench to facilitate the subsequent assembly of lithium battery modules, thereby improving the continuity of lithium battery module assembly. In addition, loading and unloading materials by conveying can also avoid damage to the battery cells caused by mechanical grippers when grabbing.

[0021] The parts not involved in the device are the same as those in the prior art or can be implemented using the prior art. The present invention can overcome the problems of low efficiency, large space occupation and high assembly cost of automatic assembly of lithium battery modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of an automatic assembly production line for lithium battery modules proposed by the present invention;

[0023] Figure 2 This is a partial structural diagram of an automatic assembly line for lithium battery modules proposed by the present invention. Figure 1 ;

[0024] Figure 3 This is a partial structural diagram of an automatic assembly line for lithium battery modules proposed by the present invention. Figure 2 ;

[0025] Figure 4 This is a structural schematic diagram of a workbench and conveying equipment in an automatic assembly production line for lithium battery modules proposed by the present invention;

[0026] Figure 5 This is a structural diagram of a side panel pick-and-place frame in an automatic assembly production line for lithium battery modules proposed by the present invention;

[0027] Figure 6 This is a schematic top-view cross-sectional structural diagram of a side panel pick-and-place frame in an automatic assembly production line for lithium battery modules proposed by the present invention;

[0028] Figure 7 This is a schematic diagram of a partial cross-sectional structure of a fixing part in an automatic assembly production line for lithium battery modules proposed by the present invention;

[0029] Figure 8 This invention proposes an automatic assembly line for lithium battery modules Figure 6 Schematic diagram of the structure of part A;

[0030] Figure 9 This invention proposes an automatic assembly line for lithium battery modules Figure 7 Schematic diagram of the structure of part B;

[0031] Figure 10 This is a flow chart of an automatic assembly production line for lithium battery modules proposed by the present invention.

[0032] Figure: 1, workbench; 2, conveying equipment; 3, mounting frame; 4, guide wheel; 5, first electric push rod; 6, movable mounting plate; 7, second electric push rod; 8, end plate pick-up and placement frame; 9, third electric push rod; 10, side plate pick-up and placement frame; 11, first spring; 12, pressure plate; 13, fixing member; 14, storage slot; 15, second spring; 16, telescopic member; 17, connecting channel; 18, pressure block; 19, groove; 20, limit block; 21, third spring; 22, slide; 2 3. Slide plate; 24. Guide groove; 25. Drive block; 26. Electric slide rail; 27. Electric slider; 28. Fixed frame; 29. ​​Adjustment groove; 30. Welding equipment; 31. Welding head; 32. Positioning groove; 33. Fixed rack; 34. Mounting groove; 35. Drive gear; 36. Connecting groove; 37. Connecting plate; 38. Movable rack; 39. Lifting gear plate; 40. Fan gear; 41. Drive wheel; 42. Push plate; 43. Shrapnel; 44. Driven wheel; 45. Belt. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0035] Example:

[0036] Reference Figures 1-9, an automatic assembly production line for lithium battery modules, comprising a workbench 1 and a mounting frame 3 mounted on the workbench 1, and further comprising: an assembly drive mechanism, arranged on the mounting frame 3, for adjusting the height of the end plate and the distance between the end and side plates and the lithium battery module; an end plate pick-up and placement frame 8, arranged on the assembly drive mechanism, and a side plate pick-up and placement frame 10 is arranged on the assembly drive assembly, wherein both the end plate pick-up and placement frame 8 and the side plate pick-up and placement frame 10 are provided with a release mechanism, and when the end plate and the side plate are moved to the side of the lithium battery module, the release mechanism is used to release the end plate and the side plate. The end plate and the side plate are attached to the lithium battery module; the fixing part 13 is fixedly connected to the side plate pick-up and placement frame 10, and the fixing part 13 is provided with a welding mechanism for welding the end plate and the side plate to the lithium battery module; the material taking mechanism is provided on the mounting frame 3, and is used to take out the lithium battery module when the assembly is completed. It also includes a conveying device 2 symmetrically fixedly connected to the workbench 1 along one side of the end plate pick-up and placement frame 8, and a plurality of guide wheels 4 are provided on the workbench 1, and the rotation direction of the guide wheels 4 is the same as the conveying direction of the conveying device 2.

[0037] In this embodiment, the conveying device 2 is a conventional means in the prior art and will not be described in detail here. When assembling the lithium battery module, a single group of glue-coated battery cells is placed on the conveying device 2 through the loading device. It should be explained that the feeding device can be used to adjust the conveying distance between adjacent battery cells, and the conveying distance between battery cell groups can be adjusted according to the number of battery cells required for the lithium battery module. The top of the guide wheel 4 matches the workbench 1;

[0038] By assembling the drive mechanism, the assembly of the end plate and the side plate can be realized while the normal transportation of the battery cell can be guaranteed, while reducing the requirements for battery cell transportation. In addition, by assembling the end plate and the side plate at the same position at the same time, the space occupied by the lithium battery module assembly is also reduced. After the end plate and the side plate are assembled, the connection between the end plate and the side plate is stably welded, thereby simplifying the workflow of the automatic assembly of the lithium battery module, achieving the purpose of improving the assembly efficiency, while also reducing the space occupied by the lithium battery assembly, thereby reducing the assembly cost of the lithium battery module.

[0039] Reference Figure 1-Figure 3 The assembly drive mechanism includes multiple groups of first electric push rods 5 symmetrically fixedly connected to the mounting frame 3, the ends of the first electric push rods 5 are fixedly connected with movable mounting plates 6, multiple groups of second electric push rods 7 are fixedly connected on the side close to each other of the movable mounting plates 6, the end plate pick-and-place frame 8 is fixedly connected to the end of the second electric push rod 7, the inner side of the mounting frame 3 is symmetrically fixedly connected with multiple groups of third electric push rods 9, the side plate pick-and-place frame 10 is fixedly connected to the end of the third electric push rod 9, and the second electric push rod 7 and the third electric push rod 9 are vertically arranged.

[0040] In this embodiment, when the battery cells are transported, the first electric push rod 5 is in a retracted state to ensure that the battery cells can be transported to the guide wheel 4 of the workbench 1 through the bottom of the movable mounting plate 6 during the transportation process. Under the action of inertia and the thrust of the subsequent battery cells, the battery cells will gradually move toward the center position of the workbench 1 and eventually stay on the guide wheel 4. After the battery cells required for a single group of lithium battery modules are transported, the first electric push rod 5 extends outward, driving the movable mounting plate 6 to move downward until it matches the lithium battery module. Then the second electric push rod 7 extends outward, driving the end plate pick-up and placement frame 8 and the side plate pick-up and placement frame 10 to move toward the battery cells. Since the battery cells are not located at the center of the workbench 1 (i.e., the assembly position) at this time At this time, the end plate pick-up and placement frame 8 and the side plate pick-up and placement frame 10 will be electrically moved to the center of the workbench 1 to facilitate the assembly of the battery cells. It needs to be explained that the above-mentioned control of the working condition of the first electric push rod 5 by opening and closing the conveying equipment 2, and the control of the working condition of the second electric push rod 7 according to the working condition of the first electric push rod 5 are conventional means in the prior art and will not be elaborated here. According to the conveying condition of the battery cell group, it can ensure the stability of the battery cell conveying while facilitating the assembly of the end plate and the side plate on the outside of the battery cell group, and can also improve the continuity of the assembly of the end plate and the side plate of the battery cell group. In addition, through the vertical setting of the second electric push rod 7 and the third electric push rod 9, the stability and quality of the assembly of the end plate and the side plate can be guaranteed.

[0041] Reference Figure 3 、 Figure 5 and Figure 6 The release mechanism includes multiple groups of first springs 11 fixedly connected to the inner walls of the end plate pick-up and placement frame 8 and the side plate pick-up and placement frame 10, the ends of the first springs 11 are fixedly connected to the pressure plates 12, the outer walls of the side plate pick-up and placement frame 10 are symmetrically fixedly connected to the fixing parts 13, the ends of the fixing parts 13 and the outer walls of the end plate pick-up and placement frame 8 are provided with a receiving groove 14, the interior of the receiving groove 14 is fixedly connected to a second spring 15, the end of the second spring 15 is fixedly connected to a telescopic part 16 or a pressure block 18 slidably connected to the receiving groove 14, the interior of the end plate pick-up and placement frame 8 and the interiors of the fixing parts 13 and the side plate pick-up and placement frame 10 are all provided with a connecting channel 17 connected to the receiving groove 14.

[0042] In this embodiment, initially, multiple groups of end plates and side plates can be placed on the inner side of the end plate pick-up and placement frame 8 and the side plate pick-up and placement frame 10 for continuous assembly of the lithium battery module in a short period of time, and they can be replenished after they are used up. Among them, under the action of the first spring 11, the end plates and side plates can be stably located in the end plate pick-up and placement frame 8 and the side plate pick-up and placement frame 10, and the stability of the end plates and side plates can be maintained. The end plate pick-up and placement frame 8 and the side plate pick-up and placement frame 10 can accommodate multiple groups of end plates and side plates at the same time to ensure the continuous operation of the lithium battery module and further improve the work efficiency of the automatic assembly of the lithium battery module.

[0043] Reference Figure 6 and Figure 8 , also includes grooves 19 symmetrically opened on the inner walls of the end plate pick-up and placement frame 8 and the side plate pick-up and placement frame 10, the inner sliding connection of the groove 19 is limited to a limit block 20, and a third spring 21 is fixedly connected between the limit block 20 and the groove 19, and a slide groove 22 connected to the groove 19 is opened inside the end plate pick-up and placement frame 8 and the side plate pick-up and placement frame 10, and a slide 23 connected to the limit block 20 is slidably connected inside the slide groove 22, and a guide groove 24 is opened on the slide groove 23, wherein the end of the connecting channel 17 is connected to the slide groove 22, and the interior of the connecting channel 17 is slidably connected to a driving block 25, and the end of the driving block 25 is located inside the guide groove 24, and the guide groove 24 is inclined away from the side of the limit block 20.

[0044] In this embodiment, when the position of the battery cell is adjusted by the end plate pick-up and placement frame 8 and the side plate pick-up and placement frame 10, the distance between the end plate pick-up and placement frame 8 and the side plate pick-up and placement frame 10 will gradually decrease until the telescopic member 16 contacts the pressure block 18, and then the telescopic member 16 and the pressure block 18 will compress the storage groove 14 and transport the internal gas or liquid to the connecting channel 17, thereby driving the driving block 25 to move toward the side of the guide groove 24, thereby driving the limit block 20 to move into the groove 19, and when the limit block 20 moves into the groove 19, the end plate and the side plate move from the end plate pick-up and placement frame 8 and the side plate pick-up and placement frame 10 to the side of the battery cell, so that the end plate and the side plate are assembled on the battery cell. On the outside, and at this time, the side walls of the first group of end plates and side plates are fitted with the limit blocks 20. When the assembly is completed, when the end plate pick-up and placement frame 8 and the side plate pick-up and placement frame 10 move to the initial position, the limit blocks 20 will also move to the outside of the groove 19. When the first end plate and side plate are detached, the limit blocks 20 will quickly extend to the outside of the groove 19 to limit the subsequent end plates and side plates, thereby achieving the purpose of releasing a single group of end plates and side plates at a time to avoid the situation where too many end plates and side plates are placed or not placed. In addition, it can also avoid damage to the end plates and side plates caused by the robot when grasping, so as to facilitate the subsequent processes of the lithium battery module and improve the quality of automatic assembly of the lithium battery module.

[0045] Reference Figure 3 、 Figure 5 、 Figure 7 and Figure 9The welding mechanism includes an electric slide rail 26 provided on the fixing member 13, an electric slider 27 is slidably connected inside the electric slide rail 26, a fixing frame 28 is fixedly connected to the side of the electric slider 27 close to the side panel pick-up and placement frame 10, an adjustment slot 29 is provided on the fixing frame 28, a welding device 30 is slidably connected inside the adjustment slot 29, and a welding head 31 is connected to the output end of the welding device 30, wherein an adjustment component is provided between the fixing member 13 and the fixing frame 28 for adjusting the height of the welding head 31 during welding, the adjustment component includes a positioning slot 32 provided on the side of the fixing member 13 close to the fixing frame 28, a fixed rack 33 is fixedly connected to the lower part of the positioning slot 32, a mounting slot 34 is provided on the side of the fixing frame 28 close to the positioning slot 32, and the inside of the mounting slot 34 There are multiple sets of driving gears 35 rotatably connected, and a connecting groove 36 connected to the adjusting groove 29 and the mounting groove 34 is provided inside the fixed frame 28. A connecting plate 37 slidably connected to the connecting groove 36 is fixedly connected to the welding device 30, and a movable rack 38 meshing with the driving gear 35 is fixedly connected to the connecting plate 37. When the electric slider 27 is above the electric slide rail 26, the height of the end of the welding head 31 is higher than the height of the lithium battery module. A friction block is provided on the outer wall of the welding device 30. The friction between the outer wall of the welding device 30 and the inner wall of the adjusting groove 29 is greater than the gravity of the welding device 30. The welding head 31 is arranged at an angle, and when the welding head 31 moves to the bottom of the adjusting groove 29, the end of the welding head 31 matches the bottom of the side wall of the lithium battery module.

[0046] In this embodiment, after the end plate and the side plate are placed, the electric slide rail 26 is started to drive the electric slider 27 to move from top to bottom, thereby driving the welding head 31 to move from top to bottom along the connection between the end plate and the side plate, that is, the connection between the end plate and the side plate is welded. It should be accepted that when the end plate and the side plate are placed, the positions of the end plate pick-up and placement frame 8 and the side plate pick-up and placement frame 10 are fixed. By adjusting the angle of the fixing part 13 and the length of the welding head 31, it can be made close to the connection between the end plate and the side plate, thereby realizing welding. As the welding head 31 moves downward, it is close to the bottom of the end plate and the side plate. At the position of the top, the driving gear 35 will engage with the fixed rack 33, thereby driving the driving gear 35 to rotate, and under the action of the movable rack 38, the welding head 31 will be driven to move downward along the fixed frame 28. This is to ensure that there will be no welding leaks at the connection between the end plate and the side plate during welding, thereby improving the welding quality of the end plate and the side plate, so as to improve the assembly effect of the lithium battery module. In addition, when the end plate and the side plate are placed in a stable position, the welding head 31 can be quickly driven to weld their connection, thereby further improving the efficiency of the automatic assembly of the lithium battery module.

[0047] Reference Figure 1-Figure 3The material-retrieving mechanism includes a lifting tooth plate 39 fixedly connected to one group of movable mounting plates 6, a hole matching the lifting tooth plate 39 is opened on the mounting frame 3, and the mounting frame 3 is rotatably connected to the side of the lifting tooth plate 39 close to the lifting tooth plate 39. The shaft end of the sector gear 40 is fixedly connected to the driving wheel 41, and the sector gear 40 is meshed with the lifting tooth plate 39. It also includes a push plate 42 rotatably connected to the mounting frame 3, a spring plate 43 is fixedly connected between the push plate 42 and the mounting frame 3, and a driven wheel 44 is fixedly connected to the shaft end of the push plate 42. A belt 45 is sleeved between the driving wheel 41 and the driven wheel 44, and a hole matching the belt 45 is opened on the mounting frame 3.

[0048] In this embodiment, when the lithium battery module is assembled, the conveying equipment 2 continues to work, and the second electric push rod 7 retracts inward, and then the first electric push rod 5 retracts inward, driving the movable mounting plate 6 to move upward, thereby driving the lifting gear plate 39 to move upward, driving the fan gear 40 to rotate, and driving the push plate 42 to rotate along the conveying direction of the lithium battery module through the driving wheel 41, the driven wheel 44 and the belt 45, thereby pushing the assembled lithium battery module to another conveying equipment 2, realizing automatic unloading of the lithium battery module, and facilitating subsequent work. When the fan gear 40 is disengaged from the lifting gear plate 39, the push plate 42 will rotate to the initial position under the action of the spring 43, so as to facilitate the subsequent unloading of the lithium battery module.

[0049] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A lithium battery module automatic assembly production line, comprising a workbench (1) and a mounting frame (3) mounted on the workbench (1), characterized in that: Also includes: An assembly drive mechanism is provided on the mounting frame (3) and is used to adjust the height of the end plate and the distance between the end plate and the side plate and the lithium battery module; An end plate pick-up and placement frame (8) is provided on the assembly drive mechanism, and a side plate pick-up and placement frame (10) is provided on the assembly drive assembly. Wherein, the end plate pick-up and placement frame (8) and the side plate pick-up and placement frame (10) are both provided with a release mechanism, which is used to fit the end plate and the side plate onto the lithium battery module when the end plate and the side plate are moved to the side of the lithium battery module; A fixing member (13) is fixedly connected to the side plate pick-up and placement frame (10), and a welding mechanism is provided on the fixing member (13) for welding the end plate and the side plate to the lithium battery module; The material taking mechanism is arranged on the mounting frame (3) and is used to take out the lithium battery module after the assembly is completed.

2. The automatic assembly line for lithium battery modules according to claim 1, characterized in that: The assembly drive mechanism includes a plurality of first electric push rods (5) symmetrically fixedly connected to the mounting frame (3), the ends of the first electric push rods (5) are fixedly connected to a movable mounting plate (6), a plurality of second electric push rods (7) are fixedly connected to the side of the movable mounting plate (6) close to each other, the end plate pick-up and placement frame (8) is fixedly connected to the ends of the second electric push rods (7), the inner side of the mounting frame (3) is symmetrically fixedly connected to a plurality of third electric push rods (9), the side plate pick-up and placement frame (10) is fixedly connected to the ends of the third electric push rods (9), and the second electric push rods (7) and the third electric push rods (9) are vertically arranged.

3. The automatic assembly line for lithium battery modules according to claim 2, characterized in that: It also includes a conveying device (2) symmetrically fixedly connected to the workbench (1) along one side of the end plate pick-up and placement frame (8), and a plurality of guide wheels (4) are provided on the workbench (1), and the rotation direction of the guide wheels (4) is the same as the conveying direction of the conveying device (2).

4. The automatic assembly line for lithium battery modules according to claim 2, characterized in that: The release mechanism includes a plurality of first springs (11) fixedly connected to the inner walls of the end plate pick-up and placement frame (8) and the side plate pick-up and placement frame (10), the ends of the first springs (11) are fixedly connected to a pressure plate (12), the outer wall of the side plate pick-up and placement frame (10) is symmetrically fixedly connected to a fixing member (13), the end of the fixing member (13) and the outer wall of the end plate pick-up and placement frame (8) are provided with a receiving groove (14), the interior of the receiving groove (14) is fixedly connected to a second spring (15), the end of the second spring (15) is fixedly connected to a telescopic member (16) or a pressure block (18) slidably connected to the receiving groove (14), and the interior of the end plate pick-up and placement frame (8) and the interior of the fixing member (13) and the side plate pick-up and placement frame (10) are all provided with a connecting channel (17) connected to the receiving groove (14).

5. The automatic assembly line for lithium battery modules according to claim 4, characterized in that: The invention also includes a groove (19) symmetrically provided on the inner wall of the end plate pick-up and placement frame (8) and the side plate pick-up and placement frame (10), the inner part of the groove (19) is slidably connected to a limit block (20), a third spring (21) is fixedly connected between the limit block (20) and the groove (19), a sliding groove (22) connected to the groove (19) is provided in the inner part of the end plate pick-up and placement frame (8) and the side plate pick-up and placement frame (10), a slide plate (23) connected to the limit block (20) is slidably connected in the inner part of the slide plate (22), and a guide groove (24) is provided on the slide plate (23). The end of the connecting channel (17) is connected to the slide groove (22), the interior of the connecting channel (17) is slidably connected to a driving block (25), the end of the driving block (25) is located inside the guide groove (24), and the guide groove (24) is inclined away from the side of the limit block (20).

6. The automatic assembly line for lithium battery modules according to claim 4, characterized in that: The welding mechanism comprises an electric slide rail (26) arranged on a fixing member (13), an electric slider (27) is slidably connected to the interior of the electric slide rail (26), a fixing frame (28) is fixedly connected to the side of the electric slider (27) close to the side plate pick-up and placement frame (10), an adjustment slot (29) is provided on the fixing frame (28), a welding device (30) is slidably connected to the interior of the adjustment slot (29), and an output end of the welding device (30) is connected to a welding head (31), Wherein, an adjustment component is provided between the fixing member (13) and the fixing frame (28) for adjusting the height of the welding head (31) during welding.

7. The automatic assembly line for lithium battery modules according to claim 6, characterized in that: The adjustment assembly includes a positioning groove (32) provided on a side of the fixing member (13) close to the fixing frame (28), a fixed rack (33) is fixedly connected to the lower part of the positioning groove (32), a mounting groove (34) is provided on a side of the fixing frame (28) close to the positioning groove (32), multiple groups of driving gears (35) are rotatably connected to the interior of the mounting groove (34), a connecting groove (36) connected to the adjustment groove (29) and the mounting groove (34) is provided inside the fixing frame (28), a connecting plate (37) slidably connected to the connecting groove (36) is fixedly connected to the welding device (30), and a movable rack (38) meshing with the driving gear (35) is fixedly connected to the connecting plate (37).

8. The automatic assembly line for lithium battery modules according to claim 7, characterized in that: When the electric slider (27) is located above the electric slide rail (26), the height of the end of the welding head (31) is higher than the height of the lithium battery module. A friction block is provided on the outer wall of the welding device (30). The friction force between the outer wall of the welding device (30) and the inner wall of the adjustment groove (29) is greater than the gravity of the welding device (30). The welding head (31) is arranged in an inclined manner, and when the welding head (31) moves to the bottom of the adjustment groove (29), the end of the welding head (31) matches the bottom of the side wall of the lithium battery module.

9. The automatic assembly line for lithium battery modules according to claim 2, characterized in that: The material taking mechanism comprises a lifting tooth plate (39) fixedly connected to one of the movable mounting plates (6); a hole matching the lifting tooth plate (39) is provided on the mounting frame (3); a fan-shaped gear (40) is rotatably connected to a side of the mounting frame (3) close to the lifting tooth plate (39); a driving wheel (41) is fixedly connected to the shaft end of the fan-shaped gear (40); and the fan-shaped gear (40) is meshed with the lifting tooth plate (39).

10. The automatic assembly line for lithium battery modules according to claim 9, characterized in that: The invention also includes a push plate (42) rotatably connected to the mounting frame (3), a spring piece (43) is fixedly connected between the push plate (42) and the mounting frame (3), a driven wheel (44) is fixedly connected to the axial end of the push plate (42), a belt (45) is sleeved between the driving wheel (41) and the driven wheel (44), and a hole matching the belt (45) is opened on the mounting frame (3).

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