High-safety spot welding splicing device for assembling lithium battery

Abstract

The utility model relates to the technical field of lithium batteries, and discloses a high-safety spot welding splicing device for assembling lithium batteries, which comprises a workbench, a connecting block and a moving mechanism, a fixing frame is fixedly mounted at the top end of the workbench, and the connecting block is fixedly mounted at the top end of the inner wall of the fixing frame through the moving mechanism. An electric telescopic rod is fixedly installed at the bottom end of the connecting block, and a pressing protection mechanism is arranged at the output end of the electric telescopic rod. The pressing protection mechanism comprises a fixing plate and a pressing plate, the pressing plate is arranged below the fixing plate, the fixing plate is fixedly installed at the output end of the electric telescopic rod, by arranging the pressing protection mechanism, the pressing plate can move along with the electric welding machine, the pressing plate can press a nickel sheet at any position on a lithium battery, the use limitation of the device is reduced, and the use efficiency of the device is improved. And by arranging the blocking cover and the transparent cover, a certain protection effect can be achieved on the eyes of people in time in the welding process, and the situation that strong light irritates and harms the eyes is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a spot welding splicing device for assembling lithium batteries with high safety. Background Art

[0002] "Lithium battery" is a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solution. In 1912, lithium metal batteries were first proposed and studied by Gilbert N. Lewis. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain metallic lithium and are rechargeable. The fifth generation of rechargeable batteries, lithium metal batteries, was born in 1996. Their safety, specific capacity, self-discharge rate and performance-price ratio are better than lithium ion batteries. Due to its own high technical requirements, only companies in a few countries are producing this type of lithium metal battery; when the existing lithium batteries are spliced ​​by workers through nickel sheets using a spot welding machine, the workers usually manually press the nickel sheets on the top of the lithium battery for spot welding, which makes it easy for the workers to accidentally touch the spot welding head when manually pressing the nickel sheets, causing harm to the workers;

[0003] According to a Chinese patent, a highly safe spot welding splicing device for lithium battery assembly is disclosed, and its announcement number is: CN214161727U. The patent controls the pressing plate at the bottom of the electric telescopic rod on both sides to be lowered, so that the pressing block at one end of the pressing plate presses the nickel sheet on the top of a row of lithium batteries that need to be spot welded. At this time, when the staff is spot welding, it will not cause the staff to manually press the nickel sheet and accidentally touch the spot welding head, but directly fix it through the pressing block at one end of the pressing plate, achieving a safer effect;

[0004] However, the pressure plate in the patent can only press and fix the nickel sheet at a fixed position on the lithium battery, resulting in high limitations in use and no protective mechanism. Therefore, we propose a spot welding splicing device for lithium battery assembly with high safety. Utility Model Content

[0005] The utility model aims to provide a spot welding splicing device for lithium battery assembly with high safety, which solves the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spot welding splicing device for lithium battery assembly with high safety, comprising a workbench, a connecting block, and a moving mechanism, wherein a fixing frame is fixedly installed on the top of the workbench, the connecting block is fixedly installed on the top of the inner wall of the fixing frame through the moving mechanism, an electric telescopic rod is fixedly installed on the bottom of the connecting block, and a pressing protection mechanism is provided at the output end of the electric telescopic rod;

[0007] The clamping protection mechanism includes a fixed plate and a pressing plate, the pressing plate is arranged below the fixed plate, the fixed plate is fixedly mounted on the output end of the electric telescopic rod, a limiting rod is fixedly mounted on the top of the pressing plate, a rod hole is opened on the fixed plate, the limiting rod movably penetrates the fixed plate through the rod hole, a spring is surrounded by the outer wall of the limiting rod, one end of the spring is fixedly mounted on the top of the pressing plate, the other end of the spring is fixedly mounted on the bottom of the fixed plate, a transparent cover is fixedly mounted on the top of the pressing plate, a blocking cover is fixedly mounted on the bottom of the fixed plate, the transparent cover is sleeved on the outer wall of the blocking cover, a welding port is opened on the pressing plate, and an electric welder is fixedly mounted on the bottom of the fixed plate.

[0008] Preferably, the number of the limiting rods and the number of the rod holes are both four, and the limiting rods are adapted to the rod holes. By providing the limiting rods, a limiting effect can be exerted on the pressure plate, and the stability of the spring during compression can be ensured.

[0009] Preferably, a placement groove is provided on the top of the workbench, a hydraulic cylinder is fixedly installed near both sides of the top of the workbench, and a clamp is fixedly installed on the output end of the hydraulic cylinder. By setting the clamp, the clamp can clamp the lithium battery under the action of the hydraulic cylinder.

[0010] Preferably, the clamping plate extends into the placement groove, and the clamping plate is slidably connected to the inner wall of the placement groove.

[0011] Preferably, a leakage opening is provided at the bottom end of the inner wall of the placement groove, a collection box is provided below the leakage opening, and the collection box is fixedly installed at the bottom end of the workbench.

[0012] Preferably, the number of the leaks is two, and a box door is hingedly connected to the front of the collection box via a hinge. The provision of the box door facilitates personnel to open the box door and remove impurities from the collection box.

[0013] Preferably, a support leg (14) is fixedly mounted on the bottom end of the workbench (1), and the number of the support legs (14) is four.

[0014] The utility model provides a spot welding splicing device for lithium battery assembly with high safety. The spot welding splicing device for lithium battery assembly with high safety has the following beneficial effects:

[0015] (1) The highly safe spot welding splicing device for lithium battery assembly is provided with a clamping protection mechanism, so that the pressing plate can move with the electric welder, so that the pressing plate can clamp the nickel sheet at any position on the lithium battery, thereby reducing the use limitations of the device. In addition, by providing a shield and a transparent cover, it can timely protect the eyes of personnel during welding to prevent strong light from causing irritation and damage to the human eyes.

[0016] (2) The highly safe spot welding splicing device for lithium battery assembly can clean foreign matter in the placement slot by setting a leak, so that the foreign matter can enter the collection box through the leak and be collected in a unified manner in the collection box for easy processing. There is no need for personnel to remove foreign matter from above the placement slot, thereby improving the cleaning efficiency of personnel, saving manpower, and having a simple structure and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the side sectional structure of the utility model;

[0019] Figure 3 This is a front sectional structural schematic diagram of the utility model;

[0020] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0021] In the figure: 1. workbench; 2. fixed frame; 3. connecting block; 4. moving mechanism; 5. clamping protection mechanism; 6. electric telescopic rod; 7. electric welding machine; 8. placement slot; 9. hydraulic cylinder; 10. clamping plate; 11. leakage; 12. collection box; 13. box door; 14. supporting leg; 501. fixing plate; 502. pressing plate; 503. limiting rod; 504. rod hole; 505. spring; 506. transparent cover; 507. blocking cover; 508. welding port. DETAILED DESCRIPTION

[0022] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0023] Embodiment 1:

[0024] The spot welding splicing device for assembling lithium batteries with high safety provided by the utility model is preferably implemented as follows Figures 1 to 4As shown: A spot welding splicing device for lithium battery assembly with high safety, comprising a workbench 1, a connecting block 3, and a moving mechanism 4. A fixing frame 2 is fixedly installed on the top of the workbench 1, and the connecting block 3 is fixedly installed on the top of the inner wall of the fixing frame 2 through the moving mechanism 4. An electric telescopic rod 6 is fixedly installed on the bottom of the connecting block 3, and a pressing protection mechanism 5 is provided at the output end of the electric telescopic rod 6;

[0025] The clamping protection mechanism 5 includes a fixed plate 501 and a pressing plate 502. The pressing plate 502 is arranged below the fixed plate 501. The fixed plate 501 is fixedly installed at the output end of the electric telescopic rod 6. A limit rod 503 is fixedly installed on the top of the pressing plate 502. A rod hole 504 is opened on the fixed plate 501. The limit rod 503 movably penetrates the fixed plate 501 through the rod hole 504. A spring 505 is surrounded by the outer wall of the limit rod 503. One end of the spring 505 is fixedly installed on the top of the pressing plate 502, and the other end of the spring 505 is fixedly installed on the bottom of the fixed plate 501. A transparent cover 506 is fixedly installed on the top of the pressing plate 502, and a blocking cover 507 is fixedly installed on the bottom of the fixed plate 501. The transparent cover 506 is sleeved on the outer wall of the blocking cover 507. A welding port 508 is opened on the pressing plate 502, and an electric welder 7 is fixedly installed on the bottom of the fixed plate 501.

[0026] Specifically, the above technical solution is as follows: the electric telescopic rod 6 is started, the electric telescopic rod 6 drives the fixed plate 501 to move downward, the fixed plate 501 drives the electric welder 7 to move downward, so that the electric welder 7 is close to the lithium battery, and the fixed plate 501 also drives the pressure plate 502 to move downward through the limit rod 503 and the spring 505, so that the pressure plate 502 contacts the nickel sheet, and the pressure plate 502 compresses the spring 505. The pressure plate 502 will press the nickel sheet under the reaction force of the spring 505, and the fixed plate 501 drives the baffle 507 to move downward, so that the baffle 507 blocks the transparent cover 506. Through this mechanism, the pressure plate 502 can move with the electric welder 7, so that the pressure plate 502 can press the nickel sheet at any position on the lithium battery, reducing the use limitations of the device, and by providing the baffle 507 and the transparent cover 506, it can timely protect the eyes of personnel during welding to avoid irritation and damage to the human eyes caused by strong light.

[0027] Furthermore, the number of the limiting rods 503 and the rod holes 504 are both four, and the limiting rods 503 and the rod holes 504 are adapted to each other;

[0028] The limiting rod 503 is provided to limit the pressing plate 502 and ensure the stability of the spring 505 during compression.

[0029] Furthermore, a placement slot 8 is provided at the top of the workbench 1, a hydraulic cylinder 9 is fixedly installed near both sides of the top of the workbench 1, and a clamping plate 10 is fixedly installed at the output end of the hydraulic cylinder 9;

[0030] Wherein, by providing the clamping plate 10 , the clamping plate 10 can clamp the lithium battery under the action of the hydraulic cylinder 9 .

[0031] Furthermore, the clamping plate 10 extends into the placement groove 8 , and the clamping plate 10 is slidably connected to the inner wall of the placement groove 8 .

[0032] Embodiment 2:

[0033] On the basis of the first embodiment, the spot welding splicing device for lithium battery assembly with high safety provided by the utility model is preferably implemented as follows Figures 1 to 4 As shown: a leak 11 is opened at the bottom of the inner wall of the placement groove 8, and a collection box 12 is arranged below the leak 11. The collection box 12 is fixedly installed at the bottom of the workbench 1. There are two leaks 11, and a box door 13 is hinged on the front of the collection box 12 through a hinge;

[0034] The box door 13 is provided to facilitate personnel to open the box door 13 and take out the impurities in the collection box 12 .

[0035] Specifically, the above technical solution is that by setting the leak 11, the foreign matter in the placement groove 8 can be cleaned, so that the foreign matter can enter the collection box 12 through the leak 11, and be uniformly collected by the collection box 12 for easy processing. There is no need for personnel to remove foreign matter from above the placement groove 8, thereby improving the cleaning efficiency of personnel, saving manpower, and having a simple structure and strong practicality.

[0036] Furthermore, a support leg 14 is fixedly installed at the bottom end of the workbench 1, and the number of the support legs 14 is four.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A spot welding splicing device for lithium battery assembly with high safety, comprising a workbench (1), a connecting block (3), and a moving mechanism (4), characterized in that: A fixing frame (2) is fixedly mounted on the top of the workbench (1); the connecting block (3) is fixedly mounted on the top of the inner wall of the fixing frame (2) via a moving mechanism (4); an electric telescopic rod (6) is fixedly mounted on the bottom of the connecting block (3); and a pressing protection mechanism (5) is provided at the output end of the electric telescopic rod (6); The clamping protection mechanism (5) comprises a fixing plate (501) and a pressing plate (502), wherein the pressing plate (502) is arranged below the fixing plate (501), the fixing plate (501) is fixedly mounted on the output end of the electric telescopic rod (6), a limiting rod (503) is fixedly mounted on the top of the pressing plate (502), a rod hole (504) is provided on the fixing plate (501), the limiting rod (503) movably passes through the fixing plate (501) through the rod hole (504), and a spring (506) is arranged around the outer wall of the limiting rod (503) 505), one end of the spring (505) is fixedly mounted on the top of the pressure plate (502), the other end of the spring (505) is fixedly mounted on the bottom of the fixed plate (501), a transparent cover (506) is fixedly mounted on the top of the pressure plate (502), a blocking cover (507) is fixedly mounted on the bottom of the fixed plate (501), the transparent cover (506) is sleeved on the outer wall of the blocking cover (507), a welding opening (508) is opened on the pressure plate (502), and an electric welder (7) is fixedly mounted on the bottom of the fixed plate (501).

2. A spot welding splicing device for lithium battery assembly with high safety according to claim 1, characterized in that: The number of the limiting rods (503) and the number of the rod holes (504) are both four, and the limiting rods (503) and the rod holes (504) are adapted to each other.

3. A spot welding splicing device for lithium battery assembly with high safety according to claim 1, characterized in that: A placement groove (8) is provided at the top of the workbench (1), a hydraulic cylinder (9) is fixedly installed near both sides of the top of the workbench (1), and a clamping plate (10) is fixedly installed at the output end of the hydraulic cylinder (9).

4. A spot welding splicing device for lithium battery assembly with high safety according to claim 3, characterized in that: The clamping plate (10) extends into the placement groove (8), and the clamping plate (10) is slidably connected to the inner wall of the placement groove (8).

5. A spot welding splicing device for lithium battery assembly with high safety according to claim 3, characterized in that: The bottom end of the inner wall of the placement groove (8) is provided with a leakage opening (11), a collection box (12) is provided below the leakage opening (11), and the collection box (12) is fixedly mounted on the bottom end of the workbench (1).

6. A spot welding splicing device for lithium battery assembly with high safety according to claim 5, characterized in that: The number of the leakage openings (11) is two, and the front of the collection box (12) is hingedly connected with a box door (13) via a hinge.

7. A spot welding splicing device for lithium battery assembly with high safety according to claim 1, characterized in that: A supporting leg (14) is fixedly mounted on the bottom end of the workbench (1), and the number of the supporting legs (14) is four.

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