An automated welding platform for welding battery protection plates

Abstract

This utility model relates to the field of battery manufacturing equipment technology and discloses an automated welding platform for welding battery protection boards. The platform includes an operating table with a slide rail fixedly connected to its top. A carrier conveyor line located inside the slide rail is also fixedly connected to the top of the operating table. Several carriers are placed on the conveyor line, and several battery caps are placed inside each carrier. A three-axis motion robot is driven and connected to the top of the slide rail. This welding platform for welding battery protection boards solves the problems of existing technologies where most welding work is done by workers sitting on either side of a conveyor belt, assembling the protection board and caps, covering the fixture with a cover plate, flipping the fixture to turn the welding pins to the front, and then manually soldering the pins with a soldering iron. Manual welding takes several minutes, and workers experience fatigue after prolonged work, leading to low welding yield and significant harm to human health from the welding fumes.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing equipment technology, specifically to a welding platform for automated welding of battery protection boards. Background Technology

[0002] Lithium batteries can be broadly classified 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 developed in 1996. They offer superior safety, specific capacity, self-discharge rate, and price-performance ratio compared to lithium-ion batteries. Due to their high technological requirements, only companies in a few countries produce lithium metal batteries.

[0003] In existing lithium battery production lines, most of the welding work is done by workers sitting on either side of a conveyor belt, assembling the protection board and caps, covering the fixture with a cover plate, and flipping the fixture to turn the welding leads to the front. Then, workers manually solder the leads using soldering irons. The entire board has 60 caps and 120 solder joints. Assuming each solder joint takes 15 seconds manually, the entire board takes 15 minutes to weld. Furthermore, workers experience fatigue after prolonged work, leading to low weld yield. The welding fumes are also harmful to workers. Therefore, an automated welding platform for battery protection boards is needed to solve these problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automated welding platform for battery protection boards. It offers the advantage of replacing manual welding, solving the problem of existing lithium battery production lines where most welding work is done by workers sitting on either side of a conveyor belt, assembling the protection board and caps, covering the fixture with a cover plate, and then flipping the fixture to turn the welding leads to the front. Manual soldering is then performed on the leads using a soldering iron. The entire board has 60 caps and 120 solder joints. Each solder joint takes 15 seconds manually, and the entire board takes 15 minutes to weld. Furthermore, prolonged work leads to worker fatigue, resulting in low weld yield, and the welding fumes are harmful to workers.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A welding platform for automated welding of battery protection boards includes an operating table, a slide rail frame fixedly connected to the top of the operating table, a carrier conveyor line located inside the slide rail frame fixedly connected to the top of the operating table, a plurality of carriers placed on the carrier conveyor line, a plurality of battery caps placed inside the carriers, a three-axis motion manipulator driven and connected to the top of the slide rail frame, a plurality of flipping platforms located on one side of the carrier conveyor line fixedly connected to the top of the operating table, the plurality of flipping platforms being arranged in a rectangular array along the length direction of the carrier conveyor line, and a laser welding device fixedly connected to the top of the operating table being provided on the side of the plurality of flipping platforms away from the carrier conveyor line.

[0006] The beneficial effects of this utility model are:

[0007] This welding platform for battery protection boards utilizes a carrier conveyor line. The continuous movement of the conveyor line moves the carrier to a position under a three-axis robotic arm. The robotic arm grasps the carrier and transfers it to a flipping platform. Then, a laser welding device welds the battery cap inside the carrier, thus replacing manual welding. This increases yield and work efficiency, solving the problems of existing technologies where workers sit on either side of a conveyor belt, assembling the protection board and cap, covering the fixture with a cover plate, flipping the fixture to turn the welding pins to the front, and then manually soldering the pins with a soldering iron. Manual welding takes several minutes, and workers experience fatigue after prolonged work, leading to low yield rates and harmful fumes.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the X-axis trajectory length of the three-axis motion manipulator is the distance between the carrier conveyor line and the flipping platform, the bottom of the Y-axis movement trajectory of the three-axis motion manipulator extends to the top of the carrier conveyor line and the flipping platform, and the Z-axis trajectory length of the three-axis motion manipulator is the length of the slide rail frame.

[0010] The beneficial effect of adopting the above-mentioned further solution is that the three-axis motion robot can move along the XYZ three-axis directions, which can realize the action of grabbing the vehicle on the vehicle conveyor line and placing it on the flipping platform.

[0011] Furthermore, the flipping platform includes a support frame, a flip plate is rotatably connected inside the support frame, and a rotating shaft is fixedly connected to both ends of the flip plate. A rotary cylinder is fixedly connected to one side of the support frame, and the rotating shaft at the end adjacent to the rotary cylinder extends to the outside of the support frame and is drivenly connected to the output end of the rotary cylinder.

[0012] The beneficial effect of adopting the above-mentioned further solution is that by setting a rotary cylinder, the rotary cylinder works to drive the flap to rotate through the rotating shaft, so that the top and bottom of the flap can be switched repeatedly.

[0013] Furthermore, two positioning frames are fixedly connected to the top side of the flip plate, and a positioning push rod is fixedly connected to the top side of the flip plate away from the positioning frames.

[0014] The beneficial effect of adopting the above-mentioned further solution is that after the three-axis motion robot places the carrier on the flip plate surface, the positioning push rod extends and pushes the carrier to be confined within the two positioning frames, so that the carrier can be positioned a second time.

[0015] Furthermore, both sides of the top of the flap are rotatably connected to a bottom plate, and two bottom-supporting cylinders are fixedly connected to the top of the flap, with the two bottom-supporting cylinders being drivenly connected to the two bottom-supporting plates respectively.

[0016] The beneficial effect of adopting the above-mentioned further solution is that by setting a bottom-supporting cylinder, the bottom-supporting cylinder drives the bottom-supporting plate to rotate. When the vehicle is located on top of the flip-up plate, the two bottom-supporting plates rotate relative to each other, which can press and fix the vehicle on top of the flip-up plate.

[0017] Furthermore, the bottom of the flip plate has several through holes, and each of the through holes corresponds to a battery cap.

[0018] The beneficial effect of adopting the above-mentioned further solution is that when the flip plate is flipped over, the welding point of the battery cap faces upward, and the laser welding device can weld the battery cap through the through hole. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the flipping platform structure of this utility model.

[0021] In the diagram: 1. Slide rail frame; 2. Carrier conveyor line; 3. Carrier; 4. Three-axis motion robot; 5. Tilting platform; 51. Support; 52. Flip plate; 521. Positioning frame; 522. Push rod; 523. Bottom support plate; 524. Bottom support cylinder; 53. Rotating shaft; 54. Rotary cylinder; 6. Laser welding device. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1, by Figure 1This invention discloses an automated welding platform for welding battery protection boards. The platform includes an operating table, a slide rail frame 1 fixedly connected to the top of the operating table, a carrier conveyor line 2 located inside the slide rail frame 1 fixedly connected to the top of the operating table, the carrier conveyor line 2 having a lifting section, several carriers 3 placed on the carrier conveyor line 2, and several battery caps placed inside the carriers 3. A three-axis motion robot 4 is driven and connected to the top of the slide rail frame 1. Several flipping platforms 5 located on one side of the carrier conveyor line 2 are fixedly connected to the top of the operating table. The flipping platforms 5 are arranged in a rectangular array along the length of the carrier conveyor line 2. A laser welding device 6 is fixedly connected to the top of the operating table on the side of each flipping platform 5 away from the carrier conveyor line 2. The X-axis trajectory length of the three-axis motion robot 4 is the distance between the lifting section and the flipping platform 5. The bottom of the Y-axis movement trajectory of the three-axis motion robot 4 extends to the top of the carrier conveyor line 2 and the flipping platform 5. The Z-axis trajectory length of the three-axis motion robot 4 is the length of the slide rail frame 1.

[0024] Example 2, please refer to Figure 2 Based on Embodiment 1, the flipping platform 5 includes a bracket 51, a flip plate 52 is rotatably connected inside the bracket 51, two positioning frames 521 are fixedly connected to one side of the top of the flip plate 52, a positioning push rod 522 is fixedly connected to the side of the top of the flip plate 52 away from the positioning frames 521, bottom plates 523 are rotatably connected to both sides of the top of the flip plate 52, two bottom cylinders 524 are fixedly connected to the top of the flip plate 52, the two bottom cylinders 524 are respectively driven connected to the two bottom plates 523, a rotating shaft 53 is fixedly connected to both ends of the flip plate 52, a rotating cylinder 54 is fixedly connected to one side of the bracket 51, the rotating shaft 53 adjacent to the rotating cylinder 54 extends to the outside of the bracket 51 and is driven connected to the output end of the rotating cylinder 54, and a number of through holes are opened at the bottom of the flip plate 52, the number of through holes corresponding to a number of battery caps respectively.

[0025] In this embodiment: the three-axis motion manipulator adopts a three-axis side-mounted single-arm double-section manipulator, and the laser welding device adopts an XH-W200 YAG laser welding machine.

[0026] Working principle:

[0027] Implementation steps for innovation:

[0028] Step 1: Carrier 3 is transported to the lifting section via carrier conveyor line 2;

[0029] Step 2: The three-axis motion robot 4 grabs the carrier 3;

[0030] Step 3: The three-axis motion robot 4 transports the carrier 3 along the X-axis to the flipping platform and places it on the flip plate 52;

[0031] Step 4: Vehicle 3 performs secondary positioning on flip-flop 52;

[0032] Step 5: Flip the bottom plate 523 to secure the battery cap;

[0033] Step 6: Flip the flipper 52 times;

[0034] Step 7: The laser welding device welds the battery cap;

[0035] Step 8: Flip panel 52 flips over again, and bottom panel 523 opens;

[0036] Step 9: The three-axis motion robot grabs the carrier 3 and transports it in reverse along the X-axis to the carrier conveyor line 2 and places it there.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding platform for automated welding of battery protection boards, comprising an operating table, a slide rail frame (1) fixedly connected to the top of the operating table, a carrier conveyor line (2) located inside the slide rail frame (1) fixedly connected to the top of the operating table, a plurality of carriers (3) placed on the carrier conveyor line (2), and a plurality of battery caps placed inside the carriers (3), characterized in that: The top of the slide rail frame (1) is driven and connected to a three-axis motion manipulator (4). The top of the operating table is fixedly connected to several flipping platforms (5) located on one side of the carrier conveyor line (2). The flipping platforms (5) are arranged in a rectangular array along the length direction of the carrier conveyor line (2). The side of each flipping platform (5) away from the carrier conveyor line (2) is provided with a laser welding device (6) fixedly connected to the top of the operating table.

2. The automated welding battery protection plate welding platform according to claim 1, characterized in that: The X-axis trajectory length of the three-axis motion manipulator (4) is the distance between the carrier conveyor line (2) and the flipping platform (5). The bottom of the Y-axis movement trajectory of the three-axis motion manipulator (4) extends to the top of the carrier conveyor line (2) and the flipping platform (5). The Z-axis trajectory length of the three-axis motion manipulator (4) is the length of the slide rail frame (1).

3. The automated welding battery protection plate welding platform according to claim 2, characterized in that: The flipping platform (5) includes a bracket (51), a flip plate (52) is rotatably connected inside the bracket (51), and a rotating shaft (53) is fixedly connected to both ends of the flip plate (52). A rotary cylinder (54) is fixedly connected to one side of the bracket (51), and the rotating shaft (53) adjacent to the rotary cylinder (54) extends to the outside of the bracket (51) and is driven to the output end of the rotary cylinder (54).

4. The automated welding battery protection plate welding platform according to claim 3, characterized in that: Two positioning frames (521) are fixedly connected to the top side of the flip plate (52), and a positioning push rod (522) is fixedly connected to the top side of the flip plate (52) away from the positioning frames (521).

5. The automated welding battery protection plate welding platform according to claim 3, characterized in that: Both sides of the top of the flap (52) are rotatably connected to bottom plates (523), and two bottom cylinders (524) are fixedly connected to the top of the flap (52). The two bottom cylinders (524) are respectively driven connected to the two bottom plates (523).

6. The automated welding battery backsheet welding platform of claim 4, wherein: The bottom of the flap (52) has several through holes, and the several through holes correspond to several battery caps respectively.

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