Double-station laser welding machine for collector plate of full-tab large cylindrical battery

Abstract

The utility model belongs to the technical field of laser welding machines, and particularly relates to a full-tab large cylindrical battery collector plate double-station laser welding machine which comprises a working platform and further comprises two X modules which are both fixedly installed on the top of the working platform, and a laser welding machine body. The number of the Y modules is two, the Y modules are installed on the corresponding X modules, and the Y modules are connected with the corresponding X modules in a sliding mode; the number of the first connecting tools is two, the first connecting tools are installed on the corresponding Y modules, and the first connecting tools are connected with the corresponding Y modules in a sliding mode; according to the laser welding machine for welding the positive collector plate and the negative collector plate at the independent stations, two welding stations and two independent welding systems are arranged on one working platform, welding can be directly carried out without adjusting equipment parameters when the positive electrode is switched to the negative electrode during welding, and the production efficiency and the yield are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding machines, in particular to a double-station laser welding machine for the current collector plate of large cylindrical batteries with full tab. Background Art

[0002] A laser welding machine is a welding device that uses a laser beam as a heat source. It uses laser pulses to heat a small area of the material, and as the energy increases, it rapidly diffuses into the material through heat conduction, and can complete the welding process of melting, evaporation, and solidification at a speed of milliseconds. The laser welding machine has the characteristics of fast welding speed, deep and narrow weld seams, fine, firm and beautiful weld points. At the same time, its heating time is short, the heat affected zone is small, the deformation is small, and no processing or simple processing is required. It can perform micro welding and resistance welding of small workpieces, realize automated batch production, have precise positioning, and can weld workpieces of various shapes and parts that are difficult to access manually.

[0003] In the prior art, the existing large cylindrical full tab current collector plate welding machine is usually equipped with one laser and one laser welding head. Due to the different welding materials for the positive and negative electrodes, the welding parameters and welding focal lengths used for welding the positive and negative electrodes are different. When switching from welding the positive electrode to welding the negative electrode, the equipment parameters need to be frequently adjusted, which seriously affects the production efficiency and the yield rate. For this reason, we propose a double-station laser welding machine for the current collector plate of large cylindrical batteries with full tab to solve the above problems. Summary of the Utility Model

[0004] Based on the technical problem that the existing large cylindrical full tab current collector plate welding machine is usually equipped with one laser and one laser welding head. Due to the different welding materials for the positive and negative electrodes, the welding parameters and welding focal lengths used for welding the positive and negative electrodes are different. When switching from welding the positive electrode to welding the negative electrode, the equipment parameters need to be frequently adjusted, which seriously affects the production efficiency and the yield rate, the utility model proposes a double-station laser welding machine for the current collector plate of large cylindrical batteries with full tab.

[0005] A double-station laser welding machine for the current collector plate of large cylindrical batteries with full tab proposed by the utility model includes a working platform, and the laser welding machine further includes:

[0006] Two X modules, both of the two X modules are fixedly installed on the top of the working platform;

[0007] Two Y modules, the Y modules are installed on the corresponding X modules, and the Y modules are slidably connected to the corresponding X modules;

[0008] Two first connection toolings, the first connection toolings are installed on the corresponding Y modules, and the first connection toolings are slidably connected to the corresponding Y modules;

[0009] There are two Z modules, which are fixedly installed on the corresponding first connection tooling;

[0010] There are two second connection toolings, which are installed on the corresponding Z modules, and the second connection toolings are slidably connected to the corresponding Z modules;

[0011] There are two micrometer fine adjustment platforms, which are fixedly installed at the front ends of the corresponding second connection toolings;

[0012] There are two laser emission welding heads, which are fixedly installed on the corresponding micrometer fine adjustment platforms;

[0013] There are two core fixing toolings, and both of the two core fixing toolings are fixedly installed on the top of the workbench, and the core fixing toolings cooperate with the corresponding laser emission welding heads. Compression cylinders are fixedly installed inside both of the two core fixing toolings.

[0014] With the above structure, through the cooperation between the X module, Y module and Z module on the same side, the micrometer fine adjustment platform and the laser emission welding head can be driven to perform front-back, left-right and height adjustments, so that the laser emission welding head can be arbitrarily adjusted according to the welding needs. And by setting the micrometer fine adjustment platform, the position of the laser emission welding head can be accurately fine-tuned to ensure the welding accuracy. In addition, the core fixing tooling can support the core material, so as to facilitate the compression cylinder to compress and fix the core material.

[0015] Preferably, a positive current collector welding station and a negative current collector welding station are arranged on the top of the workbench.

[0016] Furthermore, by setting the positive current collector welding station and the negative current collector welding station, the positive welding and the negative welding can be independent stations. When switching between positive and negative welding, it is not necessary to adjust the welding parameters and the focal length. After welding the complete positive current collector, it can be directly transferred to weld the negative current collector, which is convenient to operate and improves the production efficiency and reduces the defective rate of machine adjustment and scrapping.

[0017] The beneficial effects of the present invention are:

[0018] The present invention provides a laser welding machine for independent station welding of positive and negative current collectors, which is equipped with two welding stations and two independent welding systems on one workbench. When switching from welding the positive pole to welding the negative pole, it is not necessary to adjust the equipment parameters and can directly perform welding, which improves the production efficiency and the yield of finished products. Description of the Drawings

[0019] Figure 1 It is a three-dimensional structure diagram of a double-station laser welding machine for the current collector of a full-tab large cylindrical battery proposed by the present invention;

[0020] Figure 2 This is the main structural view of a double-station laser welding machine for the current collector plate of a full-tab large cylindrical battery proposed by the present utility model.

[0021] In the figure: 1, working platform; 2, X module; 3, Y module; 4, first connection tooling; 5, second connection tooling; 6, Z module; 7, micrometer fine-tuning platform; 8, laser emission welding head; 9, core fixing tooling; 10, pressing cylinder; 11, positive current collector plate welding station; 12, negative current collector plate welding station. Detailed implementation manners

[0022] The present utility model will be further explained below in conjunction with specific embodiments.

[0023] Reference Figure 1 - Figure 2 , in this embodiment, a double-station laser welding machine for the current collector plate of a full-tab large cylindrical battery is proposed, including a working platform 1. This laser welding machine further includes:

[0024] Two X modules 2 are provided, and both of the two X modules 2 are fixedly installed on the top of the working platform 1;

[0025] Two Y modules 3 are provided, the Y modules 3 are installed on the corresponding X modules 2, and the Y modules 3 are slidably connected to the corresponding X modules 2;

[0026] Two first connection toolings 4 are provided, the first connection toolings 4 are installed on the corresponding Y modules 3, and the first connection toolings 4 are slidably connected to the corresponding Y modules 3;

[0027] Two Z modules 6 are provided, and the Z modules 6 are fixedly installed on the corresponding first connection toolings 4;

[0028] Two second connection toolings 5 are provided, the second connection toolings 5 are installed on the corresponding Z modules 6, and the second connection toolings 5 are slidably connected to the corresponding Z modules 6;

[0029] Two micrometer fine-tuning platforms 7 are provided, and the micrometer fine-tuning platforms 7 are fixedly installed at the front ends of the corresponding second connection toolings 5;

[0030] Two laser emission welding heads 8 are provided, and the laser emission welding heads 8 are fixedly installed on the corresponding micrometer fine-tuning platforms 7;

[0031] Two core fixing toolings 9 are provided, both of the two core fixing toolings 9 are fixedly installed on the top of the working platform 1, and the core fixing toolings 9 cooperate with the corresponding laser emission welding heads 8. Pressing cylinders 10 are fixedly installed inside both of the two core fixing toolings 9.

[0032] With the above structure, through the cooperation among the X module 2, Y module 3 and Z module 6 on the same side, the micrometer fine-tuning platform 7 and the laser-emitting welding head 8 can be driven to perform front-back, left-right and height adjustments, enabling the laser-emitting welding head 8 to arbitrarily adjust its position according to welding requirements. Moreover, by setting the micrometer fine-tuning platform 7, the position of the laser-emitting welding head 8 can be precisely fine-tuned to ensure the welding accuracy. In addition, the core fixing tooling 9 can support the core material, facilitating the pressing cylinder 10 to press and fix the core material.

[0033] In this embodiment, a positive current collector welding station 11 and a negative current collector welding station 12 are provided at the top of the working platform 1. By setting the positive current collector welding station 11 and the negative current collector welding station 12, the positive and negative weldings can be independent stations. Switching between positive and negative weldings does not require adjusting the welding parameters and focal length. After welding the complete positive current collector, it can be directly transferred to weld the negative current collector, which is convenient to operate and improves the production efficiency and reduces the defective rate of machine adjustment and scrapping.

[0034] Working principle: This laser welding machine is equipped with a chiller for equipment cooling and a dust collector for dust removal and cleaning during welding. At the same time, the positive current collector welding station 11 and the negative current collector welding station 12 are respectively equipped with two controllers to independently control the two welding stations. When in use, first place the core to be welded on the core fixing tooling 9 at the positive current collector welding station 11, and then start the pressing cylinder 10 on the core fixing tooling 9 at the positive current collector welding station 11 to press and fix the core. At this time, through the cooperation among the X module 2, Y module 3 and Z module 6 at the positive current collector welding station 11, the laser-emitting welding head 8 at the positive current collector welding station 11 is adjusted to a suitable welding position. Here, the micrometer fine-tuning platform 7 at the positive current collector welding station 11 can precisely fine-tune the position of the laser-emitting welding head 8 to ensure the welding accuracy. Then, when the position of the laser-emitting welding head 8 at the positive current collector welding station 11 is adjusted, the welding operation can be performed on the core. After the core welding is completed, release the fixation of the core through the pressing cylinder 10, and then transfer the core to the core fixing tooling 9 at the negative current collector welding station 12. And start the pressing cylinder 10 on the core fixing tooling 9 at the positive and negative current collector welding station 12 to press and fix the core, and then repeat the above operation to perform the negative welding operation on the core. Here, two laser-emitting welding heads 8 are equipped and controlled by two controllers. One outputs laser for the positive welding station, and the other outputs laser for the negative welding station.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A double-station laser welding machine for a large cylindrical battery collector plate with full-tab lugs, comprising a working platform (1), characterized in that: The laser welding machine also includes: Two X modules (2) are provided, and both X modules (2) are fixedly mounted on the top of the working platform (1); Two Y modules (3) are provided, wherein the Y modules (3) are mounted on corresponding X modules (2), and the Y modules (3) are slidably connected to the corresponding X modules (2); A first connecting tool (4), which is provided in two pieces, wherein the first connecting tool (4) is installed on the corresponding Y module (3), and the first connecting tool (4) is slidably connected to the corresponding Y module (3); Two Z modules (6) are provided, and the Z modules (6) are fixedly mounted on the corresponding first connecting tooling (4); A second connecting fixture (5), which is provided in two pieces, wherein the second connecting fixture (5) is mounted on a corresponding Z module (6), and the second connecting fixture (5) is slidably connected to the corresponding Z module (6); A micrometer fine-tuning platform (7), which is provided in two pieces, wherein the micrometer fine-tuning platform (7) is fixedly mounted on the front end of the corresponding second connecting tool (5); Two laser output welding heads (8) are provided, and the laser output welding heads (8) are fixedly mounted on corresponding micrometer fine-tuning platforms (7); The core fixing fixtures (9) are provided in two pieces, and the two core fixing fixtures (9) are both fixedly mounted on the top of the working platform (1), and the core fixing fixtures (9) cooperate with the corresponding laser output welding heads (8), and the interiors of the two core fixing fixtures (9) are both fixedly mounted with clamping cylinders (10).

2. A double-station laser welding machine for a large cylindrical battery collector plate with full-tab lugs according to claim 1, characterized in that: A positive electrode current collecting plate welding station (11) and a negative electrode current collecting plate welding station (12) are arranged on the top of the working platform (1).

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