Automatic welding device for new energy battery box cover

By combining a support and adjustment mechanism with a servo motor-driven threaded rod and slider system, the adaptability problem of the battery box cover welding fixture is solved, enabling rapid adaptation and stable clamping of battery box covers of different specifications, thereby improving welding quality and efficiency.

CN224464046UActive Publication Date: 2026-07-07XIAMEN FOXSEN IND TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN FOXSEN IND TECH CO LTD
Filing Date
2025-07-15
Publication Date
2026-07-07

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  • Figure CN224464046U_ABST
    Figure CN224464046U_ABST
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Abstract

This utility model relates to the field of battery box cover welding technology, and discloses an automatic welding device for new energy battery box covers, including a support mechanism and a welding robot. Multiple fixing mechanisms are arranged on the upper right side of the support mechanism, and an adjustment mechanism is arranged on the upper left side of the support mechanism. Multiple fixing mechanisms are arranged above the adjustment mechanism, and the welding robot is located in the middle of the front side of the support mechanism. The automatic welding device for new energy battery box covers of this utility model uses a servo motor in the adjustment mechanism to drive a threaded rod to rotate. Combined with the guiding action of the slider and slide rail, the position of the support plate and the workpiece above can be flexibly adjusted, thereby changing the spacing of the left and right limit posts. It can adapt to battery box covers of different specifications, meeting the welding needs of various products without changing the equipment, greatly improving the versatility of the equipment.
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Description

Technical Field

[0001] This utility model relates to the field of battery box cover welding technology, and in particular to an automatic welding device for new energy battery box covers. Background Technology

[0002] The battery case cover is a key component of the casing structure of new energy batteries (such as power batteries and energy storage batteries). Its main functions are to seal and protect the internal cells and components, ensuring the safe operation of the battery system. In the manufacturing process of new energy batteries, the welding process of the battery case cover plays a crucial role. The welding quality in this step directly determines the battery's sealing performance, profoundly affecting its safety and overall lifespan.

[0003] In the welding of new energy battery box covers, we found that the currently used fixtures have limitations in terms of fixed position. Specifically, when dealing with battery box covers of different sizes and specifications, it is necessary to change the fixtures to achieve stable fixation. This operation process is not only cumbersome and time-consuming, but also directly leads to a significant decrease in processing efficiency, making it difficult to adapt to diverse production needs. Utility Model Content

[0004] The main objective of this invention is to provide an automatic welding device for new energy battery box covers, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automatic welding device for a new energy battery box cover, comprising a support mechanism and a welding robot, wherein a plurality of fixing mechanisms are provided on the upper right side of the support mechanism, an adjustment mechanism is provided on the upper left side of the support mechanism, a plurality of fixing mechanisms are provided on the upper part of the adjustment mechanism, and the welding robot is located in the middle of the front side of the support mechanism;

[0006] The adjustment mechanism includes a slide rail, a slider, a support plate, a threaded rod, pulleys, a belt, a servo motor, and a fixed base. The lower part of the slide rail is fixedly connected to the front and rear sides of the left side of the horizontal plate. The upper part of the slider is fixedly connected to the front and rear sides of the lower part of the support plate. The lower part of the slider is slidably connected to the outer periphery of the slide rail. The upper part of the fixed base is fixedly connected to the middle of the support plate. The outer periphery of the threaded rod is threadedly connected to the middle of the fixed base. The left and right ends of the threaded rod are rotatably connected to the middle of the left side of the horizontal plate. The servo motor is installed at the lower part of the horizontal plate. The middle part of one pulley is fixedly connected to one end of the threaded rod, and the middle part of the other pulley is fixedly connected to the output end of the servo motor. The belt is internally meshed with the outer periphery of the two pulleys.

[0007] Preferably, the threaded rod is provided with a bellows cover on its outer periphery, and the bellows cover is provided on the left and right sides of the fixed base.

[0008] Preferably, the support mechanism includes two support frames, a horizontal plate and a reduction motor. The left and right sides of the horizontal plate are rotatably connected to opposite sides of the upper part of the support frame. The reduction motor is installed on the upper part of one of the support frames, and the output end of the reduction motor passes through the support frame and is fixedly connected to the middle of one side of the horizontal plate.

[0009] Preferably, limit posts are provided on the front and rear sides of the right side of the horizontal plate, and limit posts are provided on the front and rear sides of the support plate.

[0010] Preferably, the fixing mechanism includes a quick clamp, a push rod, a limiting block, and a clamping block. The lower part of the limiting block and the quick clamp are mounted on the upper part of the horizontal plate. The outer periphery of the push rod is slidably connected to the middle part of the limiting block. One end of the push rod is fixedly connected to the output end of the quick clamp, and the other end of the push rod is fixedly connected to the middle part of the clamping block.

[0011] Preferably, the clamping block is provided with an anti-slip pad on the side away from the limiting block.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. By adjusting the servo motor of the mechanism to drive the threaded rod to rotate, combined with the guiding effect of the slider and the slide rail, the position of the support plate and the workpiece above can be flexibly adjusted, thereby changing the spacing of the limit posts on the left and right sides. It can adapt to battery box covers of different specifications and meet the welding needs of various products without changing the equipment, greatly improving the versatility of the equipment.

[0014] 2. The fixing mechanism adopts a quick-clamping drive rod and clamping block, which can quickly and firmly clamp the battery box cover fitted on the limiting post, effectively avoiding the displacement of the workpiece during welding, ensuring the accuracy of the welding position, and reducing the occurrence of quality problems such as weld deviation and missed welds. In addition, the reduction motor in the support mechanism can drive the horizontal plate to rotate around the support frame, thereby changing the welding angle of the workpiece, which makes it easier for the welding robot to perform all-round welding on the complex weld seam of the battery box cover, improving the integrity and reliability of the welding. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an automatic welding device for a new energy battery box cover according to the present invention;

[0016] Figure 2 This is a schematic diagram of the fixing mechanism of an automatic welding device for a new energy battery box cover according to the present invention.

[0017] Figure 3 This is a schematic diagram of the adjustment mechanism of an automatic welding device for a new energy battery box cover according to this utility model.

[0018] In the diagram: 1. Support mechanism; 101. Support frame; 102. Horizontal plate; 103. Gear motor; 2. Adjustment mechanism; 201. Slide rail; 202. Slider; 203. Support plate; 204. Threaded rod; 205. Pulley; 206. Belt; 207. Servo motor; 208. Fixed seat; 3. Fixing mechanism; 301. Quick clamp; 302. Push rod; 303. Limit block; 304. Clamping block; 4. Limit post. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figure 1-3 As shown, an automatic welding device for a new energy battery box cover includes a support mechanism 1 and a welding robot. Multiple fixing mechanisms 3 are provided on the upper right side of the support mechanism 1, and an adjustment mechanism 2 is provided on the upper left side of the support mechanism 1. Multiple fixing mechanisms 3 are provided on the upper part of the adjustment mechanism 2, and the welding robot is located in the middle of the front side of the support mechanism 1.

[0021] In this embodiment, the adjustment mechanism 2 includes a slide rail 201, a slider 202, a support plate 203, a threaded rod 204, a pulley 205, a belt 206, a servo motor 207, and a fixed base 208. The lower part of the slide rail 201 is fixedly connected to the front and rear sides of the left side of the horizontal plate 102. The upper part of the slider 202 is fixedly connected to the front and rear sides of the lower part of the support plate 203, and the lower part of the slider 202 is slidably connected to the outer periphery of the slide rail 201. The upper part of the fixed base 208 is fixedly connected to the middle part of the support plate 203. The threaded rod 204... The outer circumferential thread is connected to the middle of the fixed base 208. The left and right ends of the threaded rod 204 are rotatably connected to the middle of the left side of the horizontal plate 102. The servo motor 207 is installed at the lower part of the horizontal plate 102. One pulley 205 is fixedly connected to one end of the threaded rod 204 in the middle, and the other pulley 205 is fixedly connected to the output end of the servo motor 207 in the middle. The belt 206 is internally meshed with the outer circumference of the two pulleys 205. The threaded rod 204 is provided with a bellows cover on the outer circumference. The bellows cover is provided on the left and right sides of the fixed base 208.

[0022] Specifically, the servo motor 207 drives the threaded rod 204 to rotate through the pulley 205 and belt 206. Under the guidance of the slider 202 and slide rail 201, the fixed seat 208 drives the support plate 203 and the workpiece above to move laterally, thereby adjusting the distance between the limit posts 4 on the left and right sides, thus making it suitable for battery box covers of different specifications.

[0023] In this embodiment, the support mechanism 1 includes two support frames 101, a horizontal plate 102, and a reduction motor 103. The left and right sides of the horizontal plate 102 are rotatably connected to the upper part of the support frame 101 facing each other. The reduction motor 103 is installed on the upper part of one of the support frames 101. The output end of the reduction motor 103 passes through the support frame 101 and is fixedly connected to the middle of one side of the horizontal plate 102. Limiting posts 4 are provided on the front and rear sides of the right side of the horizontal plate 102. Limiting posts 4 are provided on the front and rear sides of the support plate 203. The fixing mechanism 3 includes a quick clamp 301, a push rod 302, a limiting block 303, and a clamping block 304. The lower parts of the limiting block 303 and the quick clamp 301 are installed on the upper part of the horizontal plate 102. The outer periphery of the push rod 302 is slidably connected to the middle of the limiting block 303. One end of the push rod 302 is fixedly connected to the output end of the quick clamp 301, and the other end of the push rod 302 is fixedly connected to the middle of the clamping block 304. An anti-slip pad is provided on the side of the clamping block 304 away from the limiting block 303.

[0024] Specifically, the battery box cover is placed around the four limiting posts 4. Then, the quick clamp 301 in the fixing mechanism 3 drives the push rod 302 to slide within the limiting block 303, so that the clamping block 304 clamps the outer periphery of the battery box cover, thus quickly fixing the battery box cover. If the welding angle needs to be adjusted, the reduction motor 103 drives the horizontal plate 102 to rotate around the support frame 101 to change the workpiece angle. Finally, the welding robot in the middle of the front side of the support mechanism 1 automatically welds the fixed and adjusted workpiece.

[0025] Working principle:

[0026] Servo motor 207 drives threaded rod 204 to rotate via pulley 205 and belt 206. Guided by slider 202 and slide rail 201, fixed seat 208 drives support plate 203 and workpiece above to move laterally, thereby adjusting the spacing of limit posts 4 on the left and right sides to accommodate battery box covers of different specifications. Then, the battery box cover is placed on the outer periphery of the four limit posts 4. Next, the quick clamp 301 in the fixing mechanism 3 drives push rod 302 to slide within limit block 303, so that clamp block 304 clamps the outer periphery of battery box cover, completing the quick fixing of battery box cover. If the welding angle needs to be adjusted, reduction motor 103 drives horizontal plate 102 to rotate around support frame 101 to change the workpiece angle. Finally, welding robot in the middle of the front side of support mechanism 1 automatically welds the fixed and adjusted workpiece.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic welding device for a new energy battery box cover, comprising a support mechanism (1) and a welding robot, characterized in that: The upper right side of the support mechanism (1) is provided with multiple fixing mechanisms (3), the upper left side of the support mechanism (1) is provided with an adjustment mechanism (2), the upper part of the adjustment mechanism (2) is provided with multiple fixing mechanisms (3), and the welding robot is located in the middle of the front side of the support mechanism (1). The adjustment mechanism (2) includes a slide rail (201), a slider (202), a support plate (203), a threaded rod (204), a pulley (205), a belt (206), a servo motor (207), and a fixed base (208). The lower part of the slide rail (201) is fixedly connected to the front and rear sides of the left side of the horizontal plate (102). The upper part of the slider (202) is fixedly connected to the front and rear sides of the lower part of the support plate (203). The lower part of the slider (202) is slidably connected to the outer periphery of the slide rail (201). The upper part of the fixed base (208) is fixedly connected to the support plate (203). In the middle of the support plate (203), the outer circumference of the threaded rod (204) is threadedly connected to the middle of the fixed seat (208). The left and right ends of the threaded rod (204) are rotatably connected to the middle of the left side of the horizontal plate (102). The servo motor (207) is installed in the lower part of the horizontal plate (102). One of the pulleys (205) is fixedly connected to one end of the threaded rod (204) in the middle, and the other pulley (205) is fixedly connected to the output end of the servo motor (207) in the middle. The belt (206) is internally meshed with the outer circumference of the two pulleys (205).

2. The automatic welding device for a new energy battery box cover according to claim 1, characterized in that: The threaded rod (204) is provided with a bellows cover on its outer periphery, and the bellows cover is provided on the left and right sides of the fixed base (208).

3. The automatic welding device for a new energy battery box cover according to claim 2, characterized in that: The support mechanism (1) includes two support frames (101), a horizontal plate (102) and a reduction motor (103). The horizontal plate (102) is rotatably connected to the upper part of the support frame (101) on both sides. The reduction motor (103) is installed on the upper part of one of the support frames (101). The output end of the reduction motor (103) passes through the support frame (101) and is fixedly connected to the middle of one side of the horizontal plate (102).

4. The automatic welding device for a new energy battery box cover according to claim 1, characterized in that: Limiting posts (4) are provided on the front and rear sides of the right side of the horizontal plate (102), and limiting posts (4) are provided on the front and rear sides of the support plate (203).

5. The automatic welding device for a new energy battery box cover according to claim 4, characterized in that: The fixing mechanism (3) includes a quick clamp (301), a push rod (302), a limiting block (303), and a clamping block (304). The lower parts of the limiting block (303) and the quick clamp (301) are installed on the upper part of the horizontal plate (102). The outer periphery of the push rod (302) is slidably connected to the middle part of the limiting block (303). One end of the push rod (302) is fixedly connected to the output end of the quick clamp (301), and the other end of the push rod (302) is fixedly connected to the middle part of the clamping block (304).

6. The automatic welding device for a new energy battery box cover according to claim 5, characterized in that: An anti-slip pad is provided on the side of the clamping block (304) away from the limiting block (303).