A spot welding device and method for preventing copper foil from running away from a capacitor cover

Abstract

The present invention provides a spot welding device and method for preventing the copper foil of a capacitor cover from running away, which relate to the field of capacitor cover manufacturing. The device comprises a base installed on a workbench of an electric welding machine, a tray for placing capacitors installed in the middle position of the base, and mutually cooperating clamping assemblies installed on both sides of the base. When it is necessary to clamp the capacitor, a first motor is operated, and the output shaft of the first motor drives a first threaded rod to rotate. Since a threaded barrel is threadedly connected to the first threaded rod, and a connecting frame is slidably connected to a movable rod, the movable rod moves, thereby driving a mounting frame to move. At the same time, the first threaded rod drives a second threaded rod to rotate, and the second threaded rod drives two connecting rods to move. If the mounting frame approaches the tray, the two connecting rods approach each other, and the connecting rod drives an embracing group to move, so that the embracing group fits the outer wall of the capacitor, thereby quickly locking the position of the capacitor and preventing the capacitor from shaking.

Description

Technical Field

[0001] The present invention relates to the field of capacitor cover plate manufacturing, and more particularly to a spot welding device and a spot welding method for preventing the copper foil of a capacitor cover plate from running away. Background Art

[0002] A capacitor is composed of two adjacent conductors with a non-conductive insulating dielectric sandwiched between them. It can store electrical energy, with the characteristics of charging and discharging, passing AC, and blocking DC. Capacitors are widely used in electronic devices, with applications in circuits for DC blocking, AC passing, coupling, bypassing, filtering, tuning circuits, energy conversion, and control.

[0003] Chinese invention patent announcement No. CN202111473301.2 discloses a capacitor cover copper foil anti-runaway spot welding device and its use method, including: a base; an open groove, the open groove is opened on the central axis of the base; a linear drive mechanism, the linear drive mechanism is installed at one end of the base; a movable platform, the movable platform is driven by the linear drive mechanism to move linearly on the base; a connecting part, a swing arm, one end of the swing arm is located in the open groove, and a slide groove is opened at this end of the swing arm, and the connecting part slides with the slide groove; a stop block, the stop block is fixed to the other end of the swing arm. The device cannot control the position of the capacitor solder point, which causes the welding position to be offset, and then causes welding failure.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a spot welding device and method for preventing the copper foil of a capacitor cover from running away are provided, in order to achieve a purpose with greater practical value. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a capacitor cover copper foil anti-runaway spot welding device and spot welding method to solve the problem that the device cannot control the position of the capacitor welding point, thereby causing the welding position to shift and further leading to welding failure.

[0006] The purpose and efficacy of the spot welding device and method for preventing the copper foil of a capacitor cover from running away are achieved by the following specific technical means:

[0007] A capacitor cover copper foil anti-runaway spot welding device and spot welding method, comprising a base mounted on a welding machine workbench, a tray for placing capacitors mounted in the middle position of the base, the center position of the tray being connected to the output shaft of a third motor, mutually cooperating clamping assemblies mounted on both sides of the base, a feeding port being provided on the outer wall of the base, a storage box being placed at the lower end of the feeding port, a spot welding device being slidably mounted in the middle position of the side of the base, a hydraulic telescopic rod being mounted on one side of the spot welding device, a connecting frame being fixedly mounted on the upper end of a fixed rod fixedly mounted on the upper surface of the base, a movable rod being slidably mounted inside the connecting frame, a mounting bracket being fixedly mounted on one end of the movable rod, a driving group being mounted inside the movable rod and the mounting bracket, a connecting rod being slidably connected to the outer wall of the mounting bracket for use with the driving group, and a ring being hinged at the end of the connecting rod. The cam is fixedly provided with a first end in front of the first gear and a second end in back of the first gear, and the cam is fixedly provided with a first end in front of the first gear and a second end in back of the first gear.

[0008] In actual application, when it is necessary to clamp the capacitor, the first motor works, and the output shaft of the first motor drives the first threaded rod to rotate. Since the threaded barrel is threadedly connected to the first threaded rod, and the connecting frame is slidingly connected to the movable rod, the movable rod will move, thereby driving the mounting frame to move. At the same time, the first threaded rod will drive the second threaded rod to rotate, and the second threaded rod will drive the two connecting rods to move. If the mounting frame is close to the tray, the two connecting rods will approach each other, and the connecting rod will drive the embracing group to move so that the embracing group fits the outer wall of the capacitor, thereby quickly locking the position of the capacitor and preventing the capacitor from shaking. At the same time, it can adapt to the use of capacitors of different specifications, thereby improving the practicality of the device. At the same time, the tray rotates as needed to make the welding point on the outer wall of the capacitor cover reach the specified position, thereby accurately positioning and avoiding deviation in the welding position.

[0009] Further, the surrounding group includes a mounting block hinged to the connecting rod. Rollers are rotatably mounted at both ends of the mounting block. An articulated rod for cooperating with the connecting rod is fixedly arranged at the middle position of the mounting block. A pressing member is fixedly mounted on the outer wall of the articulated rod. Rollers are rotatably mounted on both sides of the mounting block. A spring telescopic rod is hinged to the outer wall of the mounting block, and the other end of the spring telescopic rod is hinged to the outer wall of the connecting rod;

[0010] In practical applications, since the spring telescopic rod is hinged to the outer wall of the mounting block, the angle of the mounting block is ensured, and then the positions of the rollers at both ends of the mounting block are ensured, so that the rollers at the end of each connecting rod can contact the capacitor simultaneously, avoiding the capacitor from shifting.

[0011] Further, the pressing member includes a sleeve fixed to the outer wall of the articulated rod. A U-shaped rod is slidably mounted inside the sleeve. A third threaded rod is threadedly connected to one end of the U-shaped rod located inside the sleeve, and the end of the third threaded rod is connected to the output shaft of the second motor. A pressing block is rotatably mounted at the other end of one of the U-shaped rods away from the material outlet;

[0012] In practical applications, since the sleeve is fixedly connected to the articulated rod, and the surrounding group will deflect during the clamping process, the surrounding group will带动 the sleeve to rotate. The sleeve带动 the U-shaped rod, so that the U-shaped rod is always located above the capacitor. After the clamping is completed, the second motor is started. The output shaft of the second motor带动 the third threaded rod to rotate. The third threaded rod带动 the U-shaped rod to fall, so that the pressing block contacts the capacitor cover plate, avoiding the capacitor cover plate from shifting during the welding process. At the same time, the pressing block presses the copper foil, preventing the copper foil from moving.

[0013] Further, a baffle is fixedly arranged on the outer wall of the connecting rod. The baffle is located on both sides of the chute wall of the mounting frame. Second balls are rotatably arranged on one side of the baffle in contact with the mounting frame;

[0014] In practical applications, the stability between the connecting rod and the mounting frame is improved through the baffle, and at the same time, the friction between the mounting frame and the baffle is reduced through the second balls.

[0015] A suction cup is mounted at the end of one of the U-shaped rods close to the material outlet side. The suction cup is connected to an air pump through a hose;

[0016] In practical applications, after the spot welding is completed, the air pump sucks air. The suction cup adsorbs the processed capacitor cover plate. After the clamping component returns to the origin, the air pump stops sucking air, and the capacitor cover plate falls from the material outlet into the storage box at the lower end.

[0017] Further, a spot welding method for a capacitor cover plate copper foil anti-runaway spot welding device:

[0018] 1. The first robotic arm holds the unprocessed capacitor cover plate and places it in the middle position of the tray;

[0019] 2. The clamping component works to position and clamp the capacitor cover plate;

[0020] 3. The tray rotates as needed to make the welding point to be welded on the outer wall of the capacitor cover plate reach the specified position;

[0021] 4. The second robotic arm holds the lead wire to the welding point to be welded on the outer wall of the capacitor cover plate, and thus performs spot welding;

[0022] 5. After the spot welding is completed, the air pump sucks air, the suction cup adsorbs the processed capacitor cover plate. After the clamping component returns to the origin, the air pump stops sucking air, and the capacitor cover plate falls from the blanking port into the storage box at the lower end;

[0023] In practical applications, the first robotic arm and the second robotic arm can be manually operated, and the rotation of the tray can be adjusted according to the computer vision system. Computer vision combines cameras, edge computing, cloud computing, software, and artificial intelligence (AI) to help the system "see" and identify objects.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. When in use, when it is necessary to clamp the capacitor, the first motor works. The output shaft of the first motor drives the first threaded rod to rotate. Since the threaded cylinder is threadedly connected to the first threaded rod, and the connecting frame is slidably connected to the movable rod, the movable rod will move, and then drive the mounting frame to move. At the same time, the first threaded rod will drive the second threaded rod to rotate, and the second threaded rod drives the two connecting rods to move. When the mounting frame approaches the tray, the two connecting rods will approach each other, and the connecting rods drive the surrounding group to move, so that the surrounding group fits the outer wall of the capacitor, which can not only quickly lock the position of the capacitor, avoid the shaking of the capacitor, but also adapt to the use of different specifications of capacitors, improve the practicability of the device. At the same time, the tray rotates as needed to make the welding point to be welded on the outer wall of the capacitor cover plate reach the specified position, so as to accurately position and avoid deviation of the welding position;

[0026] 2. Since the sleeve is fixedly connected to the hinge rod, and the surrounding group will deflect during the clamping process, the surrounding group will drive the sleeve to rotate, and the sleeve drives the U-shaped rod, so that the U-shaped rod is always located above the capacitor. After the clamping is completed, the second motor starts, and the output shaft of the second motor drives the third threaded rod to rotate, and the third threaded rod drives the U-shaped rod to fall, so that the pressing block contacts the capacitor cover plate, thus preventing the capacitor cover plate from shifting during the welding process.

[0027] Other advantages, objectives, and features of the present invention will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 is a schematic diagram of the structure of the clamping component of the present invention.

[0030] Figure 3 is a schematic diagram of the structure of the connecting rod of the present invention.

[0031] Figure 4 is a schematic diagram of the structure of the surrounding group of the present invention.

[0032] Figure 5 is a schematic diagram of the installation of the pressing member of the present invention.

[0033] Figure 6 is a schematic diagram of the structure of the pressing member of the present invention.

[0034] Figure 7 is a schematic diagram of the structure of the connecting frame of the present invention.

[0035] Figure 8 is a schematic diagram of the structure of the suction cup of the present invention.

[0036] In the figure, the correspondence between the component names and the drawing reference numbers is as follows:

[0037] 1. Base; 101. Material discharge port; 2. Clamping component; 201. Fixed rod; 202. Connecting frame; 2021. Threaded cylinder; 203. Movable rod; 204. Driving group; 2041. First threaded rod; 2042. Second threaded rod; 205. Mounting frame; 207. Connecting rod; 2071. Baffle; 208. Surrounding group;​​​​​​​In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0041] Example:

[0042] As attached Figure 1 To the attached Figure 8 As shown:

[0043] The present invention provides a capacitor cover copper foil anti-runaway spot welding device and spot welding method, comprising a base 1 installed on a welding machine workbench, a tray 3 for placing capacitors installed in the middle position of the base 1, the center position of the tray 3 is connected to the output shaft of a third motor, clamping components 2 that cooperate with each other are installed on both sides of the base 1, a feeding port 101 is opened on the outer wall of the base 1, a storage box is placed at the lower end of the feeding port 101, a spot welding device 4 is slidably installed at the middle position of the side of the base 1, a hydraulic telescopic rod is installed on one side of the spot welding device 4, the clamping component 2 is fixedly installed on the upper end of a fixed rod 201 on the upper surface of the base 1, a connecting frame 202 is fixedly provided on the upper end, a movable rod 203 is slidably installed inside the connecting frame 202, a mounting frame 205 is fixedly installed on one end of the movable rod 203, a driving group 204 is installed inside the movable rod 203 and the mounting frame 205, a connecting rod 207 used in conjunction with the driving group 204 is slidably connected to the outer wall of the mounting frame 205, and an embracing group 208 is hingedly provided at the end of the connecting rod 207. The two sides of the movable rod 203 and one side of the mounting frame 205 are respectively provided with a sliding groove, and a threaded cylinder 2021 is fixedly provided inside the connecting frame 202, and a trapezoidal block is fixedly provided inside the connecting frame 202. The outer wall of the movable rod 203 is provided with a dovetail groove used to cooperate with the trapezoidal block. The driving group 204 includes a first threaded rod 2041 rotatably connected to the movable rod 203, one end of the first threaded rod 2041 is connected to the first motor output shaft, and the other end of the first threaded rod 2041 passes through the mounting frame 205 and extends inside. The first threaded rod 2041 is fixedly installed with a driving bevel gear at one end inside the mounting frame 205, and the second threaded rod 2042 is fixedly provided in the middle position of the second threaded rod 2042 for cooperating with the driving bevel gear. The connecting rod 207 is threadedly connected to the second threaded rod 2042, and the outer wall of the second threaded rod 2042 is composed of two groups of threaded segments, and the two groups of threaded segments rotate in opposite directions. The two groups of threaded segments are respectively threadedly connected to the connecting rod 207;

[0044] In practical applications, when it is necessary to clamp the capacitor, the first motor operates, and the output shaft of the first motor drives the first threaded rod 2041 to rotate. Since the threaded cylinder 2021 is threadedly connected to the first threaded rod 2041, and the connecting frame 202 is slidably connected to the movable rod 203, the movable rod 203 will move, thereby driving the mounting bracket 205 to move. At the same time, the first threaded rod 2041 will drive the second threaded rod 2042 to rotate, and the second threaded rod 2042 drives the two connecting rods 207 to move. When the mounting bracket 205 approaches the tray 3, the two connecting rods 207 will approach each other, and the connecting rods 207 drive the surrounding group 208 to move, so that the surrounding group 208 fits the outer wall of the capacitor, which can not only quickly lock the position of the capacitor, avoid the capacitor from shaking, but also adapt to capacitors of different specifications, improve the practicability of the device. At the same time, the tray 3 rotates as needed, so that the welding point to be welded on the outer wall of the capacitor cover reaches the specified position, thereby accurately positioning and avoiding deviation of the welding position.

[0045] As shown in the attached Figure 3 、 Figure 4 and Figure 5 shown: Among them, the surrounding group 208 includes a mounting block 2081 hinged to the connecting rod 207. At both ends of the mounting block 2081, rollers 2082 are rotatably installed. At the middle position of the mounting block 2081, a hinge rod 2083 used in conjunction with the connecting rod 207 is fixedly arranged. A pressing member 209 is fixedly installed on the outer wall of the hinge rod 2083. Rollers 2082 are rotatably installed on both sides of the mounting block 2081. A spring telescopic rod 210 is hinged to the outer wall of the mounting block 2081, and the other end of the spring telescopic rod 210 is hinged to the outer wall of the connecting rod 207;

[0046] In practical applications, since the spring telescopic rod 210 is hinged to the outer wall of the mounting block 2081, the angle of the mounting block 2081 is ensured, and then the positions of the rollers 2082 at both ends of the mounting block 2081 are ensured, so that the rollers 2082 at the end of each connecting rod 207 contact the capacitor simultaneously, avoiding the capacitor from shifting.

[0047] [[ID=I5]]As shown in the attached Figure 6 shown: Among them, the pressing member 209 includes a sleeve 2091 fixed to the outer wall of the hinge rod 2083. A U-shaped rod 2092 is slidably installed inside the sleeve 2091. One end of the U-shaped rod 2092 located inside the sleeve 2091 is threadedly connected to a third threaded rod 2093, and the end of the third threaded rod 2093 is connected to the output shaft of the second motor. The other end of a U-shaped rod 2092 away from the blanking port 101 is rotatably installed with a pressing block 2094;

[0048] In practical applications, since the sleeve 2091 is fixedly connected to the articulated rod 2083, and the surrounding group 208 will deflect during the clamping process, the surrounding group 208 will drive the sleeve 2091 to rotate. The sleeve 2091 drives the U-shaped rod 2092, making the U-shaped rod 2092 always located at the upper end of the capacitor. After the clamping is completed, the second motor starts. The output shaft of the second motor drives the third threaded rod 2093 to rotate. The third threaded rod 2093 drives the U-shaped rod 2092 to drop, so that the pressing block 2094 contacts the capacitor cover plate, thus preventing the capacitor cover plate from shifting during the welding process. At the same time, the pressing block 2094 presses the copper foil to prevent the copper foil from moving.

[0049] As shown in the Figure 3 accompanying drawings: Among them, a baffle 2071 is fixedly arranged on the outer wall of the connecting rod 207. The baffle 2071 is located on both sides of the chute wall of the mounting frame 205. A second ball is rotatably arranged on one side of the baffle 2071 that contacts the mounting frame 205.

[0050] In practical applications, the stability between the connecting rod 207 and the mounting frame 205 is improved through the baffle 2071. At the same time, the friction between the mounting frame 205 and the baffle 2071 is reduced through the second ball.

[0051] As shown in the Figure 8 accompanying drawings: The end of one of the U-shaped rods 2092 near the blanking port 101 is equipped with a suction cup 2,095. The suction cup 2,095 is connected to an air pump through a hose.

[0052] In practical applications, after the spot welding is completed, the air pump sucks air. The suction cup 2,095 adsorbs the processed capacitor cover plate. After the clamping component 2 returns to the origin, the air pump stops sucking air, and the capacitor cover plate falls from the blanking port 101 into the storage box at the lower end.

[0053] As shown in the Figure 1 accompanying drawings: Among them, a spot welding method for a spot welding device for preventing the copper foil of a capacitor cover plate from running:

[0054] 1. The first robotic arm clamps the unprocessed capacitor cover plate and places it in the middle position of the tray 3;

[0055] 2. The clamping component 2 works to position and clamp the capacitor cover plate;

[0056] 3. The tray 3 rotates as needed to make the welding point to be welded on the outer wall of the capacitor cover plate reach the specified position;

[0057] 4. The second robotic arm clamps the lead to the welding point to be welded on the outer wall of the capacitor cover plate to perform spot welding;

[0058] V. After spot welding is completed, the air pump sucks air, and the suction cup 2095 adsorbs the processed capacitor cover plate. After the clamping component 2 returns to the origin, the air pump stops sucking air, and the capacitor cover plate falls from the blanking port 101 into the storage box at the lower end;

[0059] In practical applications, the first robotic arm and the second robotic arm can be manually operated, and the rotation of the tray 3 can be adjusted according to the computer vision system. The computer vision combines cameras, edge computing, cloud computing, software, and artificial intelligence (AI) to help the system "see" and identify objects.

[0060] Specific usage methods and functions of this embodiment:

[0061] When in use, when it is necessary to clamp the capacitor, the first motor works, and the output shaft of the first motor drives the first threaded rod 2041 to rotate. Since the threaded barrel 2021 is threadedly connected to the first threaded rod 2041, and the connecting frame 202 is slidably connected to the movable rod 203, the movable rod 203 will move, and then带动 the mounting bracket 205 to move. At the same time, the first threaded rod 2041 will drive the second threaded rod 2042 to rotate, and the second threaded rod 2042带动 two connecting rods 207 to move. If the mounting bracket 205 approaches the tray 3, the two connecting rods 207 will approach each other, and the connecting rods 207带动 the surrounding group 208 to move, making the surrounding group 208 fit the outer wall of the capacitor, so that the position of the capacitor can be quickly locked, avoiding the shaking of the capacitor, and at the same time, it can adapt to the use of different specifications of capacitors, improving the practicability of this device. At the same time, the tray 3 rotates according to needs, so that the welding point to be welded on the outer wall of the capacitor cover plate reaches the designated position, so as to accurately position and avoid deviation in the welding position;

[0062] Since the sleeve 2091 is fixedly connected to the hinge rod 2083, and the surrounding group 208 will deflect during the clamping process, the surrounding group 208 will带动 the sleeve 2091 to rotate, and the sleeve 2091带动 the C-shaped rod 2092, making the C-shaped rod 2092 always located above the capacitor. After the clamping is completed, the second motor starts, and the output shaft of the second motor drives the third threaded rod 2093 to rotate, and the third threaded rod 2093带动 the C-shaped rod 2092 to fall, so that the pressing block 2094 contacts the capacitor cover plate, thus avoiding the deviation of the capacitor cover plate during the welding process.

[0063] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limited to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles of the present invention and its practical application, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

Claims

1. A capacitor cover copper foil anti-runaway spot welding device, characterized by: It includes a base (1) installed on the working table of a welding machine. A tray (3) for placing capacitors is installed at the middle position of the base (1). The center position of the tray (3) is connected to the output shaft of a third motor. Clamping components (2) that cooperate with each other are installed on both sides of the base (1). A material discharge port (101) is formed on the outer wall of the base (1). A storage box is placed at the lower end of the material discharge port (101). A spot welding device (4) is slidably installed at the middle position on the side of the base (1). A hydraulic telescopic rod is installed on one side of the spot welding device (4). The clamping component (2) is fixedly installed on the upper surface of the base (1). At the upper end of a fixed rod (201), a connecting frame (202) is fixedly arranged. An active rod (203) is slidably installed inside the connecting frame (202). At one end of the active rod (203), a mounting frame (205) is fixedly installed. A driving group (204) is installed inside the active rod (203) and the mounting frame (205). A connecting rod (207) that cooperates with the driving group (204) is slidably connected to the outer wall of the mounting frame (205). At the end of the connecting rod (207), an encircling group (208) is articulated. On both sides of the active rod (203) and on one side of the mounting frame (205), sliding grooves are respectively formed. The driving group (204) includes a first threaded rod (2041) rotatably connected to the active rod (203). One end of the first threaded rod (2041) is connected to the output shaft of a first motor. The other end of the first threaded rod (2041) penetrates through the mounting frame (205) and extends to the inside. At one end of the first threaded rod (2041) located inside the mounting frame (205), a driving bevel gear is fixedly installed. A second threaded rod (2042) is rotatably arranged inside the mounting frame (205). At the middle position of the second threaded rod (2042), a driven bevel gear that cooperates with the driving bevel gear is fixedly arranged. The connecting rod (207) is threadedly connected to the second threaded rod (2042). The encircling group (208) includes a mounting block (2081) articulated to the connecting rod (207). At both ends of the mounting block (2081), rollers (2082) are rotatably installed. At the middle position of the mounting block (2081), an articulated rod (2083) that cooperates with the connecting rod (207) is fixedly arranged. A pressing member (209) is fixedly installed on the outer wall of the articulated rod (2083). On both sides of the mounting block (2081), rollers (2082) are rotatably installed. The pressing member (209) includes a sleeve (2091) fixed to the outer wall of the articulated rod (2083). An L-shaped rod (2092) is slidably installed inside the sleeve (2091). At one end of the L-shaped rod (2092) located inside the sleeve (2091), it is threadedly connected to a third threaded rod (2093). The end of the third threaded rod (2093) is connected to the output shaft of a second motor. At the other end of an L-shaped rod (2092) far from the material discharge port (101), a pressing block (2094) is rotatably installed. One of the ends of one of the U-shaped rods (2092) near the material discharge port (101) is provided with a suction cup (2095), and the suction cup (2095) is connected to an air pump through a hose.

2. A capacitor cover copper foil anti-runaway spot welding device as claimed in claim 1, characterized in that: A threaded cylinder (2021) is fixedly arranged inside the connecting frame (202), a trapezoidal block is fixedly arranged inside the connecting frame (202), and a燕尾槽 (which can be translated as "swallowtail groove" for配合梯形块使用的燕尾槽) for cooperating with the trapezoidal block is arranged on the outer wall of the movable rod (203).

3. The capacitor cover copper foil anti-runaway spot welding device according to claim 1, characterized in that: The outer wall of the second threaded rod (2042) consists of two threaded sections, the two threaded sections have opposite helix directions, and the two threaded sections are respectively threadedly connected to a connecting rod (207).

4. The capacitor cover copper foil anti-runaway spot welding device according to claim 1, characterized in that: A spring telescopic rod (210) is hingedly arranged on the outer wall of the mounting block (2081), and the other end of the spring telescopic rod (210) is hinged to the outer wall of the connecting rod (207).

5. The capacitor cover copper foil anti-runaway spot welding device according to claim 3, characterized in that: A baffle (2071) is fixedly arranged on the outer wall of the connecting rod (207), the baffle (2071) is located on both sides of the chute wall of the mounting frame (205), and a second ball is rotatably arranged on the side of the baffle (2071) contacting the mounting frame (205).

6. The spot welding method of the capacitor cover copper foil anti-runaway spot welding device according to claim 1, characterized in that: Including the following steps:

1. The first robotic arm holds the unprocessed capacitor cover plate and places it in the middle position of the tray (3); 2. The clamping component (2) works to position and clamp the capacitor cover plate; 3. The tray (3) rotates as needed to make the welding points to be welded on the outer wall of the capacitor cover plate reach the designated position; 4. The second robotic arm holds the lead to the welding point to be welded on the outer wall of the capacitor cover plate to perform spot welding; 5. After the spot welding is completed, the air pump sucks air, the suction cup (2095) adsorbs the processed capacitor cover plate. After the clamping component (2) returns to the origin, the air pump stops sucking air, and the capacitor cover plate falls from the material discharge port (101) into the storage box at the lower end.

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