Automatic butt-welding machine

Abstract

The utility model discloses an automatic butt-welding machine which relates to the technical field of butt-welding machines and comprises a butt-welding machine box and a machine table control panel, the machine table control panel is installed on the front face of the butt-welding machine box, and a battery pack conveying and jacking mechanism is arranged in the center of the interior of the butt-welding machine box. A battery pack module is installed and positioned at the top of the battery pack conveying and jacking mechanism, an electrode welding structure installed at the top in the butt-welding machine box is arranged above the battery pack conveying and jacking mechanism, and the electrode welding structure is used for welding the battery pack module. According to the utility model, through the design of the structural shape of the electrode tip, the electrode tip is a combination of the conical part and the flat part, when a battery pack is welded, the conical part firstly contacts with a workpiece and can accurately position and pierce an oxide layer on the surface of the workpiece, and then the flat part is attached to the surface of the workpiece in a large area for welding; the effect of welding the battery pack is guaranteed, and the probability of occurrence of welding defects such as insufficient welding and welding skips when the battery pack is welded is reduced.

Description

Technical Field

[0001] This utility model relates to the field of spot welding machine technology, specifically an automatic spot welding machine. Background Technology

[0002] A spot welding machine utilizes the resistance heat and a large amount of plastic deformation energy of the welding zone itself to bring two separate metal atoms close to the lattice distance to form a metallic bond. This generates a sufficient amount of common grains on the bonding surface to obtain a weld point, weld seam, or butt joint. It is commonly used in the welding processing of battery packs.

[0003] Currently, traditional spot welding machines have the following problems:

[0004] Traditional spot welding machines, when welding battery packs, rely entirely on manual assistance due to the lack of accurate coordinate references. This often results in misaligned welds, leading to weak welds between the cells and nickel sheets. Furthermore, varying welder skill levels affect production efficiency, and the manual welding process, with the hand holding the battery pack and the welding head moving up and down, poses a safety risk of pinching fingers. Utility Model Content

[0005] The purpose of this invention is to provide an automatic spot welding machine to solve the problems mentioned in the background art.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] The automatic spot welding machine provided by this utility model includes a spot welding machine housing and a machine control panel. The machine control panel is installed on the front of the spot welding machine housing. A battery pack conveying and lifting mechanism is arranged at the center of the inside of the spot welding machine housing. A battery pack module is installed and positioned on the top of the battery pack conveying and lifting mechanism.

[0008] Above the battery pack conveying and lifting mechanism is an electrode welding structure installed at the top of the welding machine housing. This electrode welding structure welds the battery pack modules.

[0009] The battery pack conveying and lifting mechanism includes a belt conveyor assembly and a clamp lifting assembly.

[0010] The belt conveyor assembly is installed at the center inside the welding machine housing and extends to the outside of the welding machine housing. Multiple clamping and lifting assemblies are installed at the bottom of the belt conveyor assembly. The belt conveyor assembly conveys the battery pack module, and the clamping and lifting assemblies clamp and fix the battery pack module, and the clamping and lifting assemblies drive the battery pack module to move up and down.

[0011] Preferably, the electrode welding structure includes:

[0012] A support column is installed inside the welding machine housing by screws. An X-axis slide rail module is installed on one side of the support column, and an X-axis slide block is installed on the top of the X-axis slide rail module.

[0013] The Y-axis slide rail module is mounted on top of the X-axis slide block, and a Y-axis slide block is mounted on the side of the Y-axis slide rail module. A spot welding module is installed inside the Y-axis slide block.

[0014] Preferably, the spot welding module performs welding operations on the battery pack module, and the output end of the spot welding module is connected to an electrode unit, which employs a cold air cooling system.

[0015] One side of the electrode unit is tapered, and the other side is flat.

[0016] Preferably, the belt conveyor assembly includes:

[0017] A conveyor frame is installed inside the welding machine housing. A conveyor motor is mounted on one side of the conveyor frame, and the output end of the conveyor motor is connected to a conveyor belt via a synchronous pulley.

[0018] The top of the conveyor belt carries a battery pack module, and the conveyor belt is movably connected to one side inside the conveyor frame.

[0019] Preferably, a plurality of support plates are installed inside the conveyor frame on the side away from the conveyor belt, and a reserved portion is left between two adjacent support plates.

[0020] The reserved portion has a clamp lifting assembly installed inside, which is mounted on the bottom of the conveyor frame and located on the side of the conveyor belt.

[0021] Preferably, the clamp lifting assembly includes:

[0022] An assembly base is mounted on the bottom of the conveyor frame by screws. The assembly base is located on the side of the conveyor belt, and a lifting cylinder is installed inside the assembly base.

[0023] A transfer base is connected to the output end of the lifting cylinder. The output end of the transfer base is connected to a battery pack clamp, the inner side of which holds the battery pack module.

[0024] The battery pack clamp is provided through the reserved portion.

[0025] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0026] 1. The electrode heads of the spot welding module utilize a cold air cooling system, providing excellent heat dissipation. Furthermore, the electrode head shape is precisely designed, combining a conical and flat section. During welding, the conical section contacts the workpiece first, accurately positioning and piercing the oxide layer on the workpiece surface. Then, the flat section adheres to the workpiece surface over a large area for welding, ensuring optimal welding performance of the battery pack. This electrode head structure design also results in more uniform resistance at the weld joint, increasing weld strength by 15%-30% and reducing the probability of welding defects such as incomplete welds and missed welds.

[0027] 2. When welding the battery pack, the welding platform has an adjustable function, and the welding spot welding module can be precisely adjusted in multiple directions, allowing for accurate alignment welding of battery packs of different sizes and shapes.

[0028] 3. The operation of lifting and moving the battery pack using belt conveyors and clamps greatly improves production efficiency. Compared to manual feeding and positioning, this significantly increases the efficiency of welding battery packs, enabling continuous welding operations. The number of workpieces that can be welded per hour increases from dozens to hundreds compared to traditional machines. Attached Figure Description

[0029] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0030] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0031] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the structure of the welding machine casing after the top is cut open;

[0033] Figure 3 This is a schematic diagram of the electrode welding structure of this utility model;

[0034] Figure 4 This is a schematic diagram of the connection between the battery pack conveying and lifting mechanism and the battery pack module of this utility model;

[0035] Figure 5 This is a side view of the lifting assembly of the clamp of this utility model.

[0036] Figure 6 This is a schematic diagram of the structure of the clamp lifting assembly of this utility model;

[0037] In the picture:

[0038] 10. Welding machine casing; 20. Machine control panel;

[0039] 30. Battery pack conveying and lifting mechanism; 300. Battery pack module;

[0040] 40. Electrode welding structure; 401. Support column; 402. X-axis slide rail module; 403. X-axis slide block; 404. Y-axis slide rail module; 405. Y-axis slide block; 406. Spot welding module; 4061. Electrode unit;

[0041] 50. Belt conveyor assembly; 501. Conveyor frame; 502. Conveyor motor; 503. Conveyor belt; 504. Support plate; 505. Reserved part;

[0042] 60. Clamp lifting assembly; 601. Assembly base; 602. Lifting cylinder; 603. Transfer base; 604. Battery pack clamp. Detailed Implementation

[0043] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0044] Please see Figures 1-6The automatic spot welding machine includes a spot welding machine housing 10 and a machine control panel 20. The machine control panel 20 is installed on the front of the spot welding machine housing 10. A battery pack conveying and lifting mechanism 30 is set at the center inside the spot welding machine housing 10. A battery pack module 300 is installed and positioned on the top of the battery pack conveying and lifting mechanism 30. An electrode welding structure 40 is installed on the top inside the spot welding machine housing 10 above the battery pack conveying and lifting mechanism 30. The electrode welding structure 40 welds the battery pack module 300. The battery pack conveying and lifting mechanism 30 includes a belt conveyor assembly 50 and a clamp lifting assembly 60. The belt conveyor assembly 50 is installed at the center inside the spot welding machine housing 10 and extends to the outside of the spot welding machine housing 10. Multiple clamp lifting assemblies 60 are installed at the bottom of the belt conveyor assembly 50. The belt conveyor assembly 50 conveys the battery pack module 300, and the clamp lifting assemblies 60 clamp and fix the battery pack module 300, and the clamp lifting assemblies 60 drive the battery pack module 300 to move up and down.

[0045] In practical use, the belt conveyor assembly 50 can transport the battery pack module 300 to be processed to one side of the electrode welding structure 40, and then move the battery pack module 300 to the top of the clamping and lifting assembly 60 by a robotic arm, making it convenient to perform welding processing close to the working end of the electrode welding structure 40. The design of the belt conveyor assembly 50 enables automated loading and unloading of the battery pack module 300, ensuring efficient processing of the battery pack module 300.

[0046] The electrode welding structure 40 includes a support column 401, which is installed inside the spot welding machine housing 10 by screws. An X-axis slide rail module 402 is installed on one side of the support column 401, and an X-axis slide block 403 is installed on the top of the X-axis slide rail module 402. A Y-axis slide rail module 404 is installed on the top of the X-axis slide block 403, and a Y-axis slide block 405 is installed on the side of the Y-axis slide rail module 404. A spot welding module 406 is installed inside the Y-axis slide block 405.

[0047] In this embodiment, the spot welding module 406 performs welding operations on the battery pack module 300. The output end of the spot welding module 406 is connected to the electrode unit 4061. The electrode unit 4061 adopts a cold air cooling system. One side of the electrode unit 4061 is set as a cone shape, and the other side of the electrode unit 4061 is set as a flat shape.

[0048] In the above embodiments, the design of the electrode unit 4061's structural shape allows the conical portion to contact the workpiece first during welding, precisely positioning and piercing the oxide layer on the surface of the battery pack module 300. Then, the flat portion adheres to the surface of the battery pack module 300 over a large area for welding. The electrode unit 4061 employs a cold air cooling system to cool the electrode unit 4061 during welding, ensuring continuous welding operations.

[0049] The automatic spot welding machine of this utility model has an X-axis slide rail module 402 that can drive the X-axis slide block 403 to move in the X-axis direction, and a Y-axis slide rail module 404 that can drive the Y-axis slide block 405 to move in the Y-axis direction. The spot welding module 406 performs welding processing on the battery pack module 300 through the electrode unit 4061.

[0050] The belt conveyor assembly 50 includes a conveyor frame 501, which is installed inside the welding machine housing 10. A conveyor motor 502 is installed on one side of the conveyor frame 501. The output end of the conveyor motor 502 is connected to a conveyor belt 503 via a synchronous pulley. A battery pack module 300 is conveyed on the top of the conveyor belt 503. The conveyor belt 503 is movably connected to one side inside the conveyor frame 501.

[0051] In this embodiment, a plurality of support plates 504 are installed inside the side of the conveyor frame 501 away from the conveyor belt 503. A reserved portion 505 is left between two adjacent support plates 504. A clamp lifting assembly 60 is provided through the reserved portion 505. The clamp lifting assembly 60 is installed at the bottom of the conveyor frame 501 and is located on the side of the conveyor belt 503.

[0052] The automatic spot welding machine of this utility model starts the conveyor motor 502 to operate when conveying the battery pack module 300, which drives the conveyor belt 503 connected to the conveyor wheel at its output end to operate, and drives the battery pack module 300 set on the top of the conveyor belt 503 to move, so as to realize the feeding and unloading of the battery pack module 300.

[0053] The clamp lifting assembly 60 includes a mounting base 601, which is mounted on the bottom of the conveyor frame 501 by screws. The mounting base 601 is located on the side of the conveyor belt 503, and a lifting cylinder 602 is installed inside the mounting base 601. A transfer base 603 is connected to the output end of the lifting cylinder 602. The output end of the transfer base 603 is connected to a battery pack clamp 604. The battery pack clamp 604 holds a battery pack module 300 on its inner side, and the battery pack clamp 604 is provided through the reserved part 505.

[0054] This automatic spot welding machine, when welding the battery pack module 300, uses a robotic arm to automatically grasp and move the battery pack module 300, clamping and fixing it at the top of the battery pack clamp 604. Then, the lifting cylinder 602 operates, driving the battery pack clamp 604 and the battery pack module 300, connected to the output end of the lifting cylinder 602, to move up and down, approaching the electrode unit 4061 for welding. Simultaneously, the intermediate transfer seat 603 can rotate the battery pack clamp 604 and the battery pack module 300 (vertically), improving the welding effect on the battery pack module 300.

[0055] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An automatic butt welder comprising a butt welder cabinet (10) and a machine control panel (20), characterized in that: The front of the butt welding machine box (10) is provided with a machine table control panel (20), and the center of the inside of the butt welding machine box (10) is provided with a battery pack conveying and jacking mechanism (30), and the top of the battery pack conveying and jacking mechanism (30) is provided with a battery pack module (300), The top of the battery pack conveying and jacking mechanism (30) is provided with an electrode welding structure (40) installed in the top of the butt welding machine box (10), and the electrode welding structure (40) welds the battery pack module (300), The battery pack conveying and jacking mechanism (30) comprises a belt conveying assembly (50) and a clamp jacking assembly (60), The belt conveying assembly (50) is installed at the center of the inside of the butt welding machine box (10), the belt conveying assembly (50) extends to the outside of the butt welding machine box (10), the bottom of the belt conveying assembly (50) is provided with a plurality of clamp jacking assemblies (60), the belt conveying assembly (50) conveys the battery pack module (300), the clamp jacking assembly (60) clamps and fixes the battery pack module (300), and the clamp jacking assembly (60) drives the battery pack module (300) to move up and down.

2. The automatic butt welder of claim 1, wherein: The electrode welding structure (40) comprises: A support column (401) is installed in the inside of the butt welding machine box (10) by screws, one side of the support column (401) is provided with an X-axis sliding rail module (402), and the top of the X-axis sliding rail module (402) is provided with an X-axis sliding seat (403); A Y-axis sliding rail module (404) is installed on the top of the X-axis sliding seat (403), and a Y-axis sliding seat (405) is installed on the side of the Y-axis sliding rail module (404). The inside of the Y-axis sliding seat (405) is provided with a butt welding module (406).

3. The automatic butt welder of claim 2, wherein: The butt welding module (406) welds the battery pack module (300), and the output end of the butt welding module (406) is connected with an electrode unit (4061) adopting a cold air cooling system, One side of the electrode unit (4061) is tapered, and the other side of the electrode unit (4061) is flat.

4. The automatic butt welder of claim 1, wherein: The belt conveying assembly (50) comprises: A conveying frame (501) is installed in the inside of the butt welding machine box (10), one side of the conveying frame (501) is provided with a conveying motor (502), and the output end of the conveying motor (502) is connected with a conveying belt (503) through a synchronous wheel, The top of the conveying belt (503) conveys the battery pack module (300), and the conveying belt (503) is movably connected to one side in the inside of the conveying frame (501).

5. The automatic butt welder of claim 4, wherein: The inside of the conveying frame (501) away from the conveying belt (503) is provided with a plurality of support plates (504), and a reserved part (505) is left between two adjacent support plates (504), The inside of the reserved part (505) is provided with a clamp jacking assembly (60), the clamp jacking assembly (60) is installed at the bottom of the conveying frame (501), and the clamp jacking assembly (60) is located at the side of the conveying belt (503).

6. The automatic butt welder of claim 5, wherein: The clamp jacking assembly (60) comprises: An assembly seat (601) is installed at the bottom of the conveying frame (501) through screws, the assembly seat (601) is arranged at the side of the conveying belt (503), and a jacking cylinder (602) is installed in the inside of the assembly seat (601); A transfer seat (603) is connected with the output end of the jacking cylinder (602), a battery pack clamp (604) is connected with the output end of the transfer seat (603), and the inside of the battery pack clamp (604) clamps a battery pack module (300), The battery pack clamp (604) is arranged through the reserved part (505).

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