A welding equipment for tricycle battery processing and production

Abstract

The present invention relates to the technical field of laser welding, and provides a welding device for processing and producing tricycle batteries, comprising a frame, a welding module, a lifting module and a parallel adjustment module. The laser welding end head in the welding module is fixedly arranged at one end of a movable frame, and a spring is connected between the movable frame and a vacuum suction nozzle. The lifting module comprises a lifting frame, a telescopic member and a pressure protrusion. The movable frame passes through the lifting frame. The parallel adjustment module comprises a welding position adjustment part, a feeding drive part and a horizontal feeding part. The other end of the movable frame can contact with an L-shaped frame. The transmission gear in the feeding drive part is fixedly connected with a sleeve. The L-shaped frame is sleeved on the surface of the sleeve. The sleeve is movably sleeved on the surface of the drive shaft. The transmission gear can be connected to the horizontal feeding part for transmission. The bottom of the blanking shell is in sliding contact with the upper surface of the horizontal feeding part. The side of the fixture is provided with an inclined rail, a Z-direction rail and a swing guide. The device has the characteristics of good welding quality and reduced manual intervention.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, and in particular to welding equipment for processing and producing 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, single lithium-ion batteries are generally assembled together in multiple strings in parallel, and then the conductive copper sheets are welded to each lithium-ion battery.

[0003] After searching, the existing patent number CN119115211B discloses a battery negative electrode welding machine, which includes: a base; a feeding and conveying assembly, which has a feeding station and a clamping station; a positioning welding jig, which has a welding station, and the positioning welding jig is used to weld the negative electrode of the battery to be welded at the welding station, so that the battery to be welded is converted into a welded battery; a unloading and conveying assembly, and the unloading and conveying assembly has a release station; a manipulator assembly, which includes a first clamp and a second clamp, and the manipulator assembly is used to clamp the battery to be welded from the clamping station through the first clamp and clamp the welded battery from the welding station through the second clamp, and release the battery to be welded to the welding station through the first clamp and release the welded battery to the release station through the second clamp, thereby improving the rhythm of the battery negative electrode welding process and improving the battery production efficiency.

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

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

[0006] To achieve the above objectives, the present invention provides the following technical solutions: A welding device for processing and producing tricycle batteries, comprising a frame, a blanking shell fixedly provided on the inner side of the frame, and further comprising:

[0007] A welding module, comprising a laser welding head, a movable frame, a vacuum nozzle, and a spring, wherein the laser welding head is fixedly mounted on one end of the movable frame, and the spring is connected between the movable frame and the vacuum nozzle;

[0008] Lifting module, the lifting module includes a lifting frame, a telescopic member and a pressing protrusion. The telescopic member is fixedly arranged between the lifting frame and the machine frame. The pressing protrusion is fixedly arranged on one side of the lower end of the lifting frame. The moving frame penetrates through the lifting frame;

[0009] Parallel adjustment module, the parallel adjustment module includes a welding position adjustment part, a feeding driving part and a horizontal feeding part. The welding position adjustment part includes an L-shaped frame. The other end of the moving frame can contact the L-shaped frame. The feeding driving part includes a driving shaft, a sleeve and a transmission gear. The transmission gear is fixedly connected with the sleeve. The L-shaped frame is sleeved on the surface of the sleeve. The sleeve is movably sleeved on the surface of the driving shaft;

[0010] A plurality of groups of the horizontal feeding parts are evenly arranged inside the machine frame. The transmission gear can be in transmission connection with the horizontal feeding part. The lower part of the blanking housing is in sliding contact with the upper surface of the horizontal feeding part;

[0011] A jig slidably arranged on the surface of the machine frame. The side of the jig is provided with an inclined rail, a Z-direction rail and a swing guide. The inclined rail is arranged between two Z-direction rails. A swing guide is rotatably arranged at the connection of the upper inclined end of the inclined rail and the Z-direction rail. The pressing protrusion can be in sliding contact with the inclined rail, the Z-direction rail and the swing guide.

[0012] As a further solution of the present invention, a燕尾端头 (swallowtail end) is arranged at one end of the moving frame背离激光焊接端头 (away from the laser welding head end). A Y-direction guide rail II is arranged on the surface of the lifting frame. The moving frame is slidably arranged in the Y-direction guide rail II. A匚形槽 (U-shaped groove) is arranged at the end of the L-shaped frame. The swallowtail end can contact the inner side of the U-shaped groove.

[0013] As a further solution of the present invention, the horizontal feeding part includes a dish and a rack plate. The dish is fixedly arranged at the end of the rack plate. The rack plate is slidably arranged inside the machine frame. The transmission gear can be in transmission connection with the rack plate. The transmission gear can be in sliding contact with the rack plate along the axis direction of the driving shaft.

[0014] As a further solution of the present invention, an X-direction guide rail and a Y-direction guide rail I are arranged inside the machine frame. The jig is slidably arranged in the X-direction guide rail. The L-shaped frame is slidably arranged in the Y-direction guide rail I.

[0015] As a further solution of the present invention, the welding position adjustment part further includes a driving screw. The driving screw is connected in the Y-direction guide rail I. The L-shaped frame is threadedly connected to the surface of the driving screw.

[0016] As a further solution of the present invention, the welding module further includes a rigid pipe fitting. The rigid pipe fitting penetrates through the surface of the moving frame. The vacuum suction nozzle is fixedly arranged at one end of the rigid pipe fitting. The other end of the rigid pipe fitting is connected to a vacuum pump. The spring is sleeved on the surface of the rigid pipe fitting.

[0017] As a further solution of the present invention, the surface of the drive shaft and the inner wall of the sleeve are respectively provided with limiting ribs and limiting grooves, and the limiting ribs are in sliding contact with the limiting grooves.

[0018] As a further solution of the present invention, the swinging guide is a swinging block, and a self-resetting shaft is arranged between one end of the swinging block and the jig. The self-resetting shaft includes a rotating shaft and a coil spring. The swinging block is fixedly connected to the rotating shaft, and the coil spring is embedded in the jig. The rotating shaft is connected to the coil spring, and the swinging block can contact the surface of the inclined rail and the Z-direction rail.

[0019] The beneficial effects of the present invention are: (1) Based on the demand for using conductive copper sheets for parallel multi-column lithium batteries, the present application can integrate the parallel independent loading, fixture movement, and welding of the conductive copper sheets. Compared with the traditional welding equipment using a single loading position, it can not only shorten the path of the welding module in the material collection and welding process, but also has the characteristics of small footprint and high work efficiency.

[0020] (2) During welding, the present application utilizes a design in which there is a height difference between the laser welding end and the vacuum nozzle and the conductive copper sheet. Before the conductive copper sheet is welded to the lithium battery, the vacuum nozzle can be used to assist in positioning the conductive copper sheet to prevent the conductive copper sheet from shaking or deviating during welding. In particular, when the conductive copper sheet has a defect of a certain bending arc from the middle position, the pre-pressing of the vacuum nozzle plays a flattening role, thereby solving the problem of a loose welding point due to stress factors after welding the conductive copper sheet. The present application has the characteristics of good welding quality and reduced human intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a perspective view of the present invention.

[0022] Figure 2 It is an exploded view of the present invention.

[0023] Figure 3 It is a three-dimensional diagram of the frame 1 according to an embodiment of the present invention.

[0024] Figure 4 This is a three-dimensional diagram of the welding module 2 according to an embodiment of the present invention.

[0025] Figure 5 It is a three-dimensional diagram of the lifting module 3 according to an embodiment of the present invention.

[0026] Figure 6 It is a three-dimensional diagram of the parallel adjustment module 4 according to an embodiment of the present invention.

[0027] Figure 7 This is the core assembly diagram of the present invention.

[0028] Figure 8 It is the front view of the present invention.

[0029] Figure 9 This is a side view of the present invention.

[0030] Figure 10 This is a top view of the present invention.

[0031] Reference numerals: 1 - frame, 11 - X-direction guide rail, 12 - first Y-direction guide rail, 13 - blanking housing;

[0032] 2 - welding module, 21 - laser welding end, 22 - moving frame, 23 - rigid pipe fitting, 24 - vacuum suction nozzle, 25 - spring, 26 - dovetail end;

[0033] 3 - lifting module, 31 - lifting frame, 32 - telescopic member, 33 - second Y-direction guide rail, 34 - pressing projection;

[0034] 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;

[0035] 5 - fixture, 5,1 - inclined rail, 52 - Z-direction rail, 53 - swing guide, 531 - self-resetting shaft body;

[0036] 6 - conductive copper sheet. Detailed implementation manners

[0037] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further details the present invention in conjunction with 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.

[0038] The following details the specific implementation of the present invention in conjunction with specific embodiments.

[0039] Please refer to Figures 1 to 10 , in an embodiment of the present invention, a welding device for processing and producing a three-wheeler battery includes a frame 1, a blanking housing 13 is fixedly arranged inside the frame 1, and further includes:

[0040] 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; <OO00097>Lifting module 3, the lifting module 3 includes a lifting frame 31, a telescopic member 32 and a pressing protrusion 34. The telescopic member 32 is fixedly arranged between the lifting frame 31 and the machine frame 1. The pressing protrusion 34 is fixedly arranged on one side of the lower end of the lifting frame 31. The moving frame 22 penetrates through the lifting frame 31;

[0042] Parallel adjustment module 4, the parallel adjustment module 4 includes a welding position adjustment part 41, a feeding drive 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 drive part 42 includes a drive 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 drive shaft 421;

[0043] A plurality of groups of the horizontal feeding parts 43 are evenly arranged inside the machine 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;

[0044] A jig 5 slidably arranged on the surface of the machine frame 1. The side of the jig 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 between 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.

[0045] Please refer to Figure 4 and Figure 7 , further, a swan neck end 26 is arranged at one end of the moving frame 22背离 the laser welding end head 21. A Y-direction guide rail two 33 is arranged on the surface of the lifting frame 31. The moving frame 22 is slidably arranged in the Y-direction guide rail two 33. A U-shaped groove 413 is arranged at the end of the L-shaped frame 412. The swan neck end 26 can contact the inner side of the U-shaped groove 413.

[0046] Please refer to Figure 6 and Figure 7 [[ID= 23]], 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 machine 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 drive shaft 421.

[0047] Please refer to Figure 3 and Figure 9Furthermore, an X-guide rail 11 and a Y-guide rail 12 are provided on the inner side of the frame 1, the fixture 5 is slidably provided in the X-guide rail 11, and the L-shaped frame 412 is slidably provided in the Y-guide rail 12.

[0048] See also Figure 6 and Figure 7 Furthermore, the welding position adjustment portion 41 also includes a driving screw 411, the driving screw 411 is connected to the Y guide rail 12, and the L-shaped frame 412 is threadedly connected to the surface of the driving screw 411.

[0049] See also Figure 4 and Figure 7 Furthermore, the welding module 2 also includes a rigid pipe 23, which passes through the surface of the movable frame 22. The vacuum nozzle 24 is fixedly arranged at one end of the rigid pipe 23, and the other end of the rigid pipe 23 is connected to the vacuum pump. The spring 25 is sleeved on the surface of the rigid pipe 23.

[0050] See also Figure 6 Furthermore, the surface of the driving shaft 421 and the inner wall of the sleeve 422 are respectively provided with limiting ribs 424 and limiting grooves, and the limiting ribs 424 are in sliding contact with the limiting grooves.

[0051] 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 tube, the distance between two adjacent Z-axis rails 52 is the spacing between two parallel sets of welding points, and the drive screw 411 and the drive shaft 421 are respectively driven by drive motors.

[0052] See also Figure 8 In one embodiment of the present invention, the swing guide 53 is a swing block, and a self-resetting shaft 531 is provided between one end of the swing block and the fixture 5 .

[0053] In an embodiment of the present invention, the self-resetting shaft 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 surface of the inclined rail 51 and the Z-direction rail 52, and the limiting function of the Z-direction rail 52 can limit the swing angle of the swing block.

[0054] Working principle: Refer to the attached 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 tail end 26 of the swallowtail is located in the U-shaped groove 413. First, the drive shaft 421 controls the movement of the dish 431 to 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 with the swing guide 53 and the inclined rail 51. When the coordinate of the lithium battery to-be-welded point moves 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. When the welding module 2 continues to descend and presses the conductive copper sheet 6 against the surface of the lithium battery to-be-welded point, the jig 5 always remains stationary. It should be noted that when the conductive copper sheet 6 is pressed against the surface of the lithium battery to-be-welded 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 problem of shaking and offset of the conductive copper sheet 6 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 of the welding point being unstable due to stress factors after the conductive copper sheet 6 is welded.

[0055] When welding the lithium battery welding points in parallel (or distributed in the Y direction), 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 contacting the Z-direction rail 52. Then, use the drive 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 preset horizontal feeding part 43, and use the drive shaft 421, the transmission gear 423 and the rack plate 432 to control the dish 431 to move 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 through repeated cycles.

[0056] 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 and independent feeding, jig 5 movement, and welding of the conductive copper sheet 6. Compared with the traditional welding equipment using a single feeding 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.

[0057] During welding, the present application utilizes a design in which there is a height difference between the laser welding end 21 and the vacuum 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 nozzle 24 can be utilized to prevent the conductive copper sheet 6 from shaking and deviating during welding. In particular, when the conductive copper sheet 6 has a defect of a certain bending arc from the middle position, the pre-pressing of the vacuum nozzle 24 plays a flattening role, which solves the problem of loose welding points due to stress factors after the conductive copper sheet 6 is welded, and has the characteristics of good welding quality and reduced manual intervention.

[0058] For those skilled in the art, although several embodiments and examples of the present invention have been described, these embodiments and examples are provided 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 scope of the invention. These embodiments and their variations are included in the scope and spirit of the invention and are included in the invention described in the claims and their equivalents.

[0059] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A welding device for processing and producing tricycle batteries, comprising a frame (1), wherein a blanking shell (13) is fixedly provided inside the frame (1), characterized in that: Further included are: A welding module (2), the welding module (2) includes a laser welding head (21), a moving frame (22), a vacuum suction nozzle (24) and a spring (25), the laser welding head (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 protrusion (34), the telescopic member (32) is fixedly arranged between the lifting frame (31) and the machine frame (1), the pressing protrusion (34) is fixedly arranged at one side of the lower end of the lifting frame (31), and the moving frame (22) penetrates through the lifting frame (31); A parallel adjustment module (4), the parallel adjustment module (4) includes a welding position adjustment part (41), a feeding drive 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 with the L-shaped frame (412), the feeding drive part (42) includes a drive shaft (421), a sleeve (422) and a transmission gear (423), the transmission gear (423) is fixedly connected with the sleeve (422), the L-shaped frame (412) is sleeved on the surface of the sleeve (422), and the sleeve (422) is movably sleeved on the surface of the drive shaft (421); Several groups of the horizontal feeding parts (43) are evenly arranged inside the machine frame (1), the transmission gear (423) can be in transmission connection with the horizontal feeding part (43), and the lower part of the blanking housing (13) is in sliding contact with the upper surface of the horizontal feeding part (43); 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 machine frame (1), the transmission gear (423) can be in transmission connection with the rack plate (432), and the transmission gear (423) can slide in contact with the rack plate (432) along the axial direction of the drive shaft (421); A jig (5) slidably arranged on the surface of the machine frame (1), the side of the jig (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), and a swing guide (53) is rotatably arranged at the connection between the upper inclined end of the inclined rail (51) and the Z-direction rail (52), and the pressing protrusion (34) can slide in contact with the inclined rail (51), the Z-direction rail (52) and the swing guide (53).

2. The welding equipment for tricycle battery processing and production according to claim 1, characterized in that: A swan neck end (26) is arranged at the end of the moving frame (22)背离 the laser welding head (21), a Y-direction guide rail II (33) is arranged on the surface of the lifting frame (31), the moving frame (22) is slidably arranged in the Y-direction guide rail II (33), a U-shaped groove (413) is arranged at the end of the L-shaped frame (412), and the swan neck end (26) can contact with the inner side of the U-shaped groove (413).

3. The welding equipment for tricycle battery processing and production according to claim 2, characterized in that: An X-direction guide rail (11) and a Y-direction guide rail (12) are provided inside the frame (1); the fixture (5) is slidably provided in the X-direction guide rail (11); and the L-shaped frame (412) is slidably provided in the Y-direction guide rail (12).

4. The welding equipment for tricycle battery processing and production according to claim 3, characterized in that: The welding position adjustment portion (41) further comprises a driving screw (411), wherein the driving screw (411) is connected to the inside of the Y-guide rail (12), and the L-shaped frame (412) is threadedly connected to the surface of the driving screw (411).

5. The welding equipment for tricycle battery processing and production according to claim 4, characterized in that: The welding module (2) further comprises a rigid pipe (23), wherein the rigid pipe (23) passes through the surface of the movable frame (22), the vacuum suction nozzle (24) is fixedly arranged at one end of the rigid pipe (23), the other end of the rigid pipe (23) is connected to a vacuum pump, and the spring (25) is sleeved on the surface of the rigid pipe (23).

6. The welding equipment for tricycle battery processing and production according to claim 1, characterized in that: The surface of the drive shaft (421) and the inner wall of the sleeve (422) are respectively provided with a limiting rib (424) and a limiting groove, and the limiting rib (424) is in sliding contact with the limiting groove.

7. The welding equipment for tricycle battery processing and production according to claim 1, characterized in that: The swing guide (53) is a swing block, and a self-resetting shaft (531) is provided between one end of the swing block and the jig (5). The self-resetting shaft (531) includes a rotating shaft and a coil spring. The swing block is fixedly connected to the rotating shaft, and 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 rail (52).

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