Welding equipment for tricycle battery processing and production

Abstract

The invention relates to the technical field of laser welding, and provides welding equipment for tricycle battery processing and production, the welding equipment comprises a rack, a welding module, a lifting module and a parallel adjusting module, a laser welding end in the welding module is fixedly arranged at one end of a moving frame, and a spring is connected between the moving frame and a vacuum suction nozzle; the lifting module comprises a lifting frame, a telescopic piece and a pressure applying protrusion, the moving frame penetrates through the lifting frame, the parallel adjusting module comprises a welding position adjusting part, a feeding driving part and a horizontal feeding part, the other end of the moving frame can make contact with an L-shaped frame, a transmission gear in the feeding driving part is fixedly connected with a sleeve, and the L-shaped frame is arranged on the surface of the sleeve in a sleeving mode. The surface of the driving shaft is movably sleeved with the sleeve, the transmission gear can be in transmission connection with the horizontal feeding part, the lower portion of the discharging shell makes sliding contact with the upper surface of the horizontal feeding part, an inclined rail, a Z-direction rail and a swing guide piece are arranged on the side face of the jig, and the welding device has the beneficial effects that the welding quality is good, and manual intervention is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, and more specifically, to a welding device for the processing and production of tricycle batteries. Background Art

[0002] As a type of battery for tricycles, lithium-ion batteries have the characteristics of high energy density, light weight, small size, fast charging, long service life, and good stability. When assembling lithium-ion batteries, generally, individual lithium-ion batteries are assembled together in a multi-string parallel arrangement, and then conductive copper sheets are welded to each lithium-ion battery.

[0003] After retrieval, the existing patent number CN119115211B discloses a battery negative electrode welding machine, which includes: a base; a feeding and conveying assembly having a feeding station and a clamping station; a positioning and welding fixture having a welding station, and the positioning and welding fixture is used to perform negative electrode welding on the battery to be welded at the welding station, so that the battery to be welded is transformed into a welded battery; a blanking and conveying assembly having a releasing station; a manipulator assembly including a first gripper and a second gripper, and the manipulator assembly is used to grip the battery to be welded from the clamping station through the first gripper while gripping the welded battery from the welding station through the second gripper, and to release the battery to be welded at the welding station through the first gripper while releasing the welded battery at the releasing station through the second gripper, which improves the rhythm of the battery negative electrode welding process and improves the battery production efficiency.

[0004] The above-disclosed battery negative electrode welding machine still has the following defects when welding the welding points of parallel (or Y-directionally distributed) lithium batteries: (1) Considering that conductive copper sheets are required for welding multiple rows of lithium batteries side by side, traditional welding equipment cannot integrate the parallel independent feeding, fixture movement, and welding of conductive copper sheets, resulting in a long path for welding and material taking; (2) When the conductive copper sheet is attached to the lithium battery welding point position, manual intervention is still required to assist in positioning the conductive copper sheet, which is prone to welding deviation problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a welding device for the processing and production of tricycle batteries, aiming to solve the problems existing in the existing battery negative electrode welding machine.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A welding device for the processing and production of tricycle batteries, including a frame, a blanking housing is fixedly arranged inside the frame, and further includes: A welding module, the welding module includes a laser welding head, a moving frame, a vacuum suction nozzle, and a spring, the laser welding head is fixedly arranged at one end of the moving frame, and the spring is connected between the moving frame and the vacuum suction nozzle; A lifting module, the lifting module comprising a lifting frame, a telescopic member and a pressure protrusion, the telescopic member is fixedly arranged between the lifting frame and the frame, the pressure protrusion is fixedly arranged on one side of the lower end of the lifting frame, and the moving frame passes through the lifting frame; A parallel adjustment module, the parallel adjustment module includes a welding position adjustment part, a feeding drive part and a horizontal feeding part, the welding position adjustment part includes an L-shaped frame, the other end of the movable frame can contact the L-shaped frame, the feeding drive part includes a driving shaft, a sleeve and a transmission gear, the transmission gear is fixedly connected to the sleeve, the L-shaped frame is sleeved on the surface of the sleeve, and the sleeve is movably sleeved on the surface of the driving shaft; A plurality of groups of the horizontal feeding parts are evenly arranged on the inner side of the frame, the transmission gear can be transmission-connected with the horizontal feeding parts, and the lower side of the blanking shell is in sliding contact with the upper surface of the horizontal feeding parts; A jig is slidably arranged on the surface of the frame, and a ramp, a Z-direction rail and a swing guide are arranged on the side of the jig. The ramp is arranged between two groups of Z-direction rails, and a swing guide is rotatably arranged at the connection between the inclined upper end of the ramp and the Z-direction rail, and the pressure protrusion can be in sliding contact with the ramp, the Z-direction rail and the swing guide.

[0007] As a further solution of the present invention, a dovetail end is provided at one end of the movable frame away from the laser welding end, a Y-guide rail 2 is provided on the surface of the movable frame, the movable frame is slidably arranged in the Y-guide rail 2, a 匚-shaped groove is provided at the end of the L-shaped frame, and the dovetail end can contact the inner side of the 匚-shaped groove.

[0008] As a further solution of the present invention, the horizontal loading part includes a material dish and a rack plate, the material dish is fixedly arranged at the end of the rack plate, the rack plate is slidably arranged on the inner side of the frame, the transmission gear can be connected to the rack plate in transmission, and the transmission gear can be in sliding contact with the rack plate along the axial direction of the drive shaft.

[0009] As a further solution of the present invention, an X-guide rail and a Y-guide rail 1 are arranged on the inner side of the frame, the fixture is slidably arranged in the X-guide rail, and the L-shaped frame is slidably arranged in the Y-guide rail 1.

[0010] As a further solution of the present invention, the welding position adjustment part also includes a driving screw, the driving screw is connected to the inside of the Y-guide rail, and the L-shaped frame is threadedly connected to the surface of the driving screw.

[0011] As a further solution of the present invention, the welding module also includes a rigid pipe fitting, which passes through the surface of the movable frame, the vacuum nozzle is fixedly arranged at one end of the rigid pipe fitting, the other end of the rigid pipe fitting is connected to the vacuum pump, and the spring is sleeved on the surface of the rigid pipe fitting.

[0012] As a further solution of the present invention, limiting ribs and limiting grooves are respectively arranged on the surface of the driving shaft and the inner wall of the sleeve, and the limiting ribs are in sliding contact with the limiting grooves.

[0013] As a further solution of the present invention, the swing guiding member is a swing block. A self-returning shaft body is arranged between one end of the swing block and the fixture. The self-returning shaft body includes a rotating shaft and a coil spring. The swing block is fixedly connected to the rotating shaft. The coil spring is embedded in the fixture. The rotating shaft is connected to the coil spring. The swing block can be in contact with the surfaces of the inclined rail and the Z-direction rail.

[0014] The beneficial effects of the present invention are as follows: (1) According to the requirement of using conductive copper sheets for multiple rows of lithium batteries arranged side by side, the present application can integrate the parallel and independent feeding, fixture movement, and welding of conductive copper sheets. Compared with the traditional welding equipment using a single feeding position, it can not only shorten the path during the material taking and welding processes of the welding module, but also has the characteristics of small floor area and high working efficiency.

[0015] (2) During welding, by using the design with a height difference between the laser welding end and the vacuum suction nozzle and the conductive copper sheet, before the conductive copper sheet is welded to the lithium battery, the auxiliary positioning function of the vacuum suction nozzle can be utilized to prevent the problem of the conductive copper sheet shaking and shifting during welding. Especially when the conductive copper sheet has a certain bending arc defect from the middle position, the pre-pressing of the vacuum suction nozzle plays a role in flattening, solving the problem of the welding point being unstable due to stress factors after the conductive copper sheet is welded, and having the characteristics of good welding quality and reduced manual intervention. Description of the Drawings

[0016] Figure 1 It is a perspective view of the present invention.

[0017] Figure 2 It is an exploded view of the present invention.

[0018] Figure 3 It is a perspective view of the frame 1 of the embodiment of the present invention.

[0019] Figure 4 It is a perspective view of the welding module 2 of the embodiment of the present invention.

[0020] Figure 5 It is a perspective view of the lifting module 3 of the embodiment of the present invention.

[0021] Figure 6 It is a perspective view of the parallel adjustment module 4 of the embodiment of the present invention.

[0022] Figure 7 It is the core assembly drawing of the present invention.

[0023] Figure 8 It is the front view of the present invention.

[0024] Figure 9 Side view of the present invention

[0025] Figure 10 Top view of the present invention

[0026] Reference numerals: 1 - frame, 11 - X - direction guide rail, 12 - first Y - direction guide rail, 13 - blanking housing 2 - welding module, 21 - laser welding end, 22 - moving frame, 23 - rigid pipe fitting, 24 - vacuum suction nozzle, 25 - spring, 26 - dovetail end 3 - lifting module, 31 - lifting frame, 32 - telescopic member, 33 - second Y - direction guide rail, 34 - pressing projection 4 - parallel adjustment module, 41 - welding position adjustment part, 411 - driving screw, 412 - L - shaped frame, 413 - U - shaped groove, 42 - feeding driving part, 421 - driving shaft, 422 - sleeve, 423 - transmission gear, 424 - limiting rib, 43 - horizontal feeding part, 431 - dish, 432 - rack plate 5 - fixture, 51 - inclined rail, 52 - Z - direction rail, 53 - swing guide, 531 - self - resetting shaft body 6 - conductive copper sheet Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention

[0028] The following describes the specific implementation of the present invention in detail with reference to specific embodiments

[0029] Please refer to Figures 1 to 10 , in an embodiment of the present invention, a welding device for processing and producing a three - wheel battery includes a frame 1. A blanking housing 13 is fixedly arranged inside the frame 1. It further includes: A welding module 2, the welding module 2 includes a laser welding end 21, a moving frame 22, a vacuum suction nozzle 24 and a spring 25. The laser welding end 21 is fixedly arranged at one end of the moving frame 22, and the spring 25 is connected between the moving frame 22 and the vacuum suction nozzle 24 A lifting module 3, the lifting module 3 includes a lifting frame 31, a telescopic member 32 and a pressing projection 34. The telescopic member 32 is fixedly arranged between the lifting frame 31 and the frame 1, the pressing projection 34 is fixedly arranged at one side of the lower end of the lifting frame 31, and the moving frame 22 passes through the lifting frame 31 The parallel adjustment module 4, the parallel adjustment module 4 includes a welding position adjustment part 41, a feeding driving part 42 and a horizontal feeding part 43. The welding position adjustment part 41 includes an L-shaped frame 412. The other end of the moving frame 22 can contact the L-shaped frame 412. The feeding driving part 42 includes a driving shaft 421, a sleeve 422 and a transmission gear 423. The transmission gear 423 is fixedly connected to the sleeve 422. The L-shaped frame 412 is sleeved on the surface of the sleeve 422. The sleeve 422 is movably sleeved on the surface of the driving shaft 421; A plurality of groups of the horizontal feeding parts 43 are uniformly arranged inside the frame 1. The transmission gear 423 can be in transmission connection with the horizontal feeding part 43. The lower part of the blanking housing 13 is in sliding contact with the upper surface of the horizontal feeding part 43; The fixture 5 slidably arranged on the surface of the frame 1. The side of the fixture 5 is provided with an inclined rail 51, a Z-direction rail 52 and a swing guide 53. The inclined rail 51 is arranged between two groups of Z-direction rails 52. A swing guide 53 is rotatably arranged at the connection of the upper inclined end of the inclined rail 51 and the Z-direction rail 52. The pressing protrusion 34 can be in sliding contact with the inclined rail 51, the Z-direction rail 52 and the swing guide 53.

[0030] Please refer to Figure 4 and Figure 7 Further, a dovetail end 26 is arranged at one end of the moving frame 22 away from the laser welding end 21. A second Y-direction guide rail 33 is arranged on the surface of the moving frame 22. The moving frame 22 is slidably arranged in the second Y-direction guide rail 33. A U-shaped groove 413 is arranged at the end of the L-shaped frame 412. The dovetail end 26 can contact the inner side of the U-shaped groove 413.

[0031] Please refer to Figure 6 and Figure 7 Further, the horizontal feeding part 43 includes a dish 431 and a rack plate 432. The dish 431 is fixedly arranged at the end of the rack plate 432. The rack plate 432 is slidably arranged inside the frame 1. The transmission gear 423 can be in transmission connection with the rack plate 432. The transmission gear 423 can be in sliding contact with the rack plate 432 along the axis direction of the driving shaft 421.

[0032] Please refer to Figure 3 and Figure 9 Further, an X-direction guide rail 11 and a first Y-direction guide rail 12 are arranged inside the frame 1. The fixture 5 is slidably arranged in the X-direction guide rail 11. The L-shaped frame 412 is slidably arranged in the first Y-direction guide rail 12.

[0033] Please refer to Figure 6 and Figure 7, Further, the welding position adjusting portion 41 further includes a driving screw 411, the driving screw 411 is connected within the first Y-direction guide rail 12, and the L-shaped frame 412 is threadedly connected to the surface of the driving screw 411.

[0034] Please refer to Figure 4 and Figure 7 , Further, the welding module 2 further includes a rigid pipe fitting 23, the rigid pipe fitting 23 penetrates the surface of the moving frame 22, the vacuum suction nozzle 24 is fixedly arranged at one end of the rigid pipe fitting 23, the other end of the rigid pipe fitting 23 is connected to a vacuum pump, and the spring 25 is sleeved on the surface of the rigid pipe fitting 23.

[0035] Please refer to Figure 6 , Further, limiting ribs 424 and a limiting groove are respectively arranged on the surface of the driving shaft 421 and the inner wall of the sleeve 422, and the limiting ribs 424 are in sliding contact with the limiting groove.

[0036] In an embodiment of the present invention, the telescopic member 32 is an electric telescopic rod, the rigid pipe fitting 23 includes a pipe body and a pipe joint, the pipe joint and the vacuum suction nozzle 24 are respectively fixedly arranged at both ends of the pipe body, the pipe joint is connected to the vacuum pump through a flexible pipe, the distance between two adjacent Z-direction guide rails 52 is the pitch of two sets of welding points arranged in parallel, and the driving screw 411 and the driving shaft 421 are respectively driven by a driving motor.

[0037] Please refer to Figure 8 , In an embodiment of the present invention, the swing guiding member 53 is a swing block, and a self-resetting shaft body 531 is arranged between one end of the swing block and the jig 5.

[0038] In an embodiment of the present invention, the self-resetting shaft body 531 includes a rotating shaft and a coil spring, the swing block is fixedly connected to the rotating shaft, the coil spring is embedded in the jig 5, the rotating shaft is connected to the coil spring, the swing block can contact the surfaces of the inclined rail 51 and the Z-direction guide rail 52, and the limiting effect of the Z-direction guide rail 52 can limit the swing angle of the swing block.

[0039] Working principle: Refer to the appendix Figure 8, taking the example of sucking the conductive copper sheet 6 in the dish 431 from the middle position by the vacuum suction nozzle 24, at this time, the pressing protrusion 34 is located above the swing guide 53, and the dovetail end 26 is located in the U-shaped groove 413. First, the drive shaft 421 controls the movement of the dish 431 to the position directly below the blanking housing 13 through the limit rib 424, the sleeve 422, the transmission gear 423, and the rack plate 432. At this time, the stacked conductive copper sheets 6 in the blanking housing 13 automatically fall into the dish 431. Then, the telescopic member 32 controls the lifting frame 31, the pressing protrusion 34, and the welding module 2 to descend. The descending pressing protrusion 34 controls the jig 5 to move along the X-direction guide rail 11 by slidingly contacting the swing guide 53 and the inclined rail 51. When the coordinate of the lithium battery welding point to be welded moves to the position directly below the laser welding end 21, the pressing protrusion 34 just moves into the Z-direction rail 52 on the other side of the inclined rail 51. During the process of the welding module 2 continuing to descend and attaching the conductive copper sheet 6 to the surface of the lithium battery welding point, the jig 5 always remains stationary. It should be noted that when the conductive copper sheet 6 is attached to the surface of the lithium battery welding point, the welding module 2 continues to press down a certain distance, and then the laser welding end 21 contacts the conductive copper sheet 6. At this time, the vacuum suction nozzles 24 distributed between the two laser welding ends 21 play an auxiliary positioning role to prevent the conductive copper sheet 6 from shaking and shifting during welding. Especially when the conductive copper sheet 6 has a certain bending arc defect from the middle position, the pre-pressing of the vacuum suction nozzles 24 plays a role in flattening, solving the problem that the welding point is not firm due to stress factors after the conductive copper sheet 6 is welded.

[0040] When welding the welding points of parallel (or Y-direction distributed) lithium batteries is required, first control the lifting frame 31, the pressing protrusion 34, and the welding module 2 to rise and reset. During this process, the pressing protrusion 34 rising along the Z-direction rail 52 first drives the swing guide 53 to swing to the inner wall of the inclined rail 51 with the self-resetting shaft body 531 as the axis. When the pressing protrusion 34 passes over the swing guide 53, the elastic deformation of the self-resetting shaft body 531 drives it to swing to the position in contact with the Z-direction rail 52. Then, use the driving screw 411 to control the L-shaped frame 412, the moving frame 22, and the sleeve 422 to move along the Y-direction to the position of another pre-set horizontal loading part 43. Use the drive shaft 421, the transmission gear 423, and the rack plate 432 to control the dish 431 to move to the position directly below the vacuum suction nozzle 24. In this way, the function of automatically welding multiple rows of lithium batteries side by side is realized by repeating this cycle.

[0041] According to the requirements of using the conductive copper sheet 6 for multiple rows of lithium batteries side by side, this application can integrate the parallel independent feeding, jig 5 movement, and welding of the conductive copper sheet 6 into one. Compared with the traditional welding equipment using a single loading position, it can not only shorten the path during the material taking and welding process of the welding module 2, but also has the characteristics of small floor area and high working efficiency.

[0042] During the welding of this application, by using the design with a height difference between the laser welding end 21 and the vacuum suction nozzle 24 and the conductive copper sheet 6, before the conductive copper sheet 6 is welded to the lithium battery, the auxiliary positioning function of the vacuum suction nozzle 24 can be utilized to prevent the problem of shaking and offset of the conductive copper sheet 6 during welding. Especially when the conductive copper sheet 6 has a defect with a certain bending arc from the middle position, the pre-pressing of the vacuum suction nozzle 24 plays a role in flattening, solving the problem that the welding point is not firm due to stress factors after the conductive copper sheet 6 is welded, and having the characteristics of good welding quality and reduced manual intervention.

[0043] For those skilled in the art, although several embodiments and examples of the present invention are described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and their variations are included in the scope and gist of the invention, and are included in the invention described in the claims and its equivalent scope.

[0044] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A welding device for processing and producing a tricycle battery, comprising a frame (1), wherein a blanking housing (13) is fixedly arranged inside the frame (1), and it is characterized in that, Also includes: A welding module (2), the welding module (2) comprising a laser welding end head (21), a movable frame (22), a vacuum suction nozzle (24) and a spring (25), the laser welding end head (21) being fixedly arranged at one end of the movable frame (22), and the spring (25) being connected between the movable frame (22) and the vacuum suction nozzle (24); A lifting module (3), the lifting module (3) comprising a lifting frame (31), a telescopic member (32) and a pressure protrusion (34), the telescopic member (32) being fixedly arranged between the lifting frame (31) and the frame (1), the pressure protrusion (34) being fixedly arranged on one side of the lower end of the lifting frame (31), and the moving frame (22) passing through the lifting frame (31); A parallel adjustment module (4), the parallel adjustment module (4) comprising a welding position adjustment part (41), a feeding drive part (42) and a horizontal feeding part (43), the welding position adjustment part (41) comprising an L-shaped frame (412), the other end of the movable frame (22) being capable of contacting the L-shaped frame (412), the feeding drive part (42) comprising a driving shaft (421), a sleeve (422) and a transmission gear (423), the transmission gear (423) being fixedly connected to the sleeve (422), the L-shaped frame (412) being sleeved on the surface of the sleeve (422), and the sleeve (422) being movably sleeved on the surface of the driving shaft (421); A plurality of groups of the horizontal feeding parts (43) are evenly arranged on the inner side of the frame (1); the transmission gear (423) can be transmission-connected with the horizontal feeding parts (43); and the lower side of the blanking shell (13) is in sliding contact with the upper surface of the horizontal feeding parts (43); A jig (5) is slidably arranged on the surface of a frame (1), and a slanted rail (51), a Z-direction rail (52) and a swing guide (53) are arranged on the side of the jig (5); the slanted rail (51) is arranged between two groups of Z-direction rails (52), and a swing guide (53) is rotatably arranged at the connection between the slanted upper end of the slanted rail (51) and the Z-direction rail (52), and the pressure protrusion (34) can be in sliding contact with the slanted rail (51), the Z-direction rail (52) and the swing guide (53).

2. The welding device for processing and producing a tricycle battery according to claim 1, wherein, A dovetail end (26) is provided at one end of the movable frame (22) facing away from the laser welding end (21); a Y-direction guide rail (33) is provided on the surface of the movable frame (22); the movable frame (22) is slidably arranged in the Y-direction guide rail (33); a 匚-shaped groove (413) is provided at the end of the L-shaped frame (412); and the dovetail end (26) is capable of contacting the inner side of the 匚-shaped groove (413).

3. A welding device for processing and producing a tricycle battery according to claim 2, characterized in that, The horizontal loading portion (43) comprises a material dish (431) and a rack plate (432); the material dish (431) is fixedly arranged at the end of the rack plate (432); the rack plate (432) is slidably arranged on the inner side of the frame (1); the transmission gear (423) can be transmission-connected with the rack plate (432); the transmission gear (423) can be in sliding contact with the rack plate (432) along the axial direction of the driving shaft (421).

4. A welding device for processing and producing a tricycle battery according to claim 3, characterized in that, Inside the frame (1), an X-direction guide rail (11) and a first Y-direction guide rail (12) are provided. The fixture (5) is slidably arranged in the X-direction guide rail (11), and the L-shaped frame (412) is slidably arranged in the first Y-direction guide rail (12).

5. A welding device for processing and producing a tricycle battery according to claim 4, characterized in that, The welding position adjusting part (41) further includes a driving screw rod (411). The driving screw rod (411) is connected in the first Y-direction guide rail (12), and the L-shaped frame (412) is threadedly connected to the surface of the driving screw rod (411).

6. The welding equipment for processing and producing a tricycle battery according to claim 5, characterized in that, The welding module (2) further includes a rigid pipe fitting (23). The rigid pipe fitting (23) penetrates through the surface of the moving frame (22). The vacuum suction nozzle (24) is fixedly arranged at one end of the rigid pipe fitting (23). The other end of the rigid pipe fitting (23) is connected to a vacuum pump. The spring (25) is sleeved on the surface of the rigid pipe fitting (23).

7. A welding device for processing and producing a tricycle battery according to claim 1, characterized in that, Limit ribs (424) and limit grooves are respectively arranged on the surface of the driving shaft (421) and the inner wall of the sleeve (422). The limit ribs (424) are in sliding contact with the limit grooves.

8. A welding device for processing and producing a three-wheeler battery according to claim 1, characterized in that, The swing guiding part (53) is a swing block. A self-resetting shaft body (531) is arranged between one end of the swing block and the fixture (5). The self-resetting shaft body (531) includes a rotating shaft and a coil spring. The swing block is fixedly connected to the rotating shaft. The coil spring is embedded in the fixture (5). The rotating shaft is connected to the coil spring. The swing block can contact the surfaces of the inclined rail (51) and the Z-direction rail (52).

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