A dual-station welding machine for round bottom plates of a kettle

By using the automated design and contour jig of the dual-station welding machine, the issues of consistency and efficiency in welding the bottom round piece to the body of the kettle were resolved, achieving a highly efficient and stable welding process.

CN224424564UActive Publication Date: 2026-06-30JINHUA LASER TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINHUA LASER TECHNOLOGY CO LTD
Filing Date
2025-08-01
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In the existing technology, the welding process between the bottom plate of the pot and the body of the pot relies on manual operation, which results in poor consistency of the welding trajectory, easy defects, low equipment utilization, and low production efficiency and quality.

Method used

The machine employs a dual-station welding machine with two independently operating installation and positioning mechanisms. Combined with a laser welding head and an adjustable welding drive assembly, it achieves automated welding. It also adapts to products of different sizes using a contour jig, and synchronously rotates the body and bottom of the pot for welding.

Benefits of technology

It improves equipment utilization and production efficiency, reduces welding defects, increases welding yield, and adapts to the rapid replacement of products of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a dual-station welding machine for round bottom plates of kettles, belonging to the technical field of welding machines. It includes an operating frame with two sets of mounting and positioning mechanisms. Each mounting and positioning mechanism includes a mounting plate fixedly connected to the operating frame. A first fixing rod is fixedly connected to the bottom of the mounting plate, and a first electric telescopic rod is fixedly connected to the bottom of the first fixing rod. A mounting seat is fixedly connected to the output end of the first electric telescopic rod. The mounting seat is located above the mounting plate, and a kettle body conforming fixture is fixedly connected to the mounting seat. This dual-station welding machine for round bottom plates of kettles uses two independently operating mounting and positioning mechanisms, which can effectively improve equipment utilization and thus increase production efficiency. Furthermore, the kettle body conforming fixture and the kettle bottom conforming fixture are detachable by screws, facilitating replacement according to different product sizes and effectively saving replacement time.
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Description

Technical Field

[0001] This utility model specifically relates to a dual-station welding machine for the round bottom plate of a kettle, belonging to the technical field of welding machines. Background Technology

[0002] In the production of stainless steel thermos flasks, electric kettles, and other round-bottomed containers, the welding of the round bottom plate to the body is the core process that determines the product's sealing performance, structural strength, and appearance quality. Current technologies mostly use manual handheld laser welding guns or fixed single-station equipment. Manual operation relies on worker experience, resulting in poor consistency of welding trajectory and defects such as incomplete welds and burn-through. Single-station equipment requires the entire process of clamping, welding, and unloading to be completed before starting the next cycle, leading to low equipment utilization and low production quality and efficiency. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a dual-station welding machine for round bottom plates of kettles. The machine includes an operating frame with two sets of mounting and positioning mechanisms. Each mounting and positioning mechanism includes a mounting plate fixedly connected to the operating frame. A first fixing rod is fixedly connected to the bottom of the mounting plate, and a first electric telescopic rod is fixedly connected to the bottom of the first fixing rod. A mounting seat is fixedly connected to the output end of the first electric telescopic rod. The mounting seat is located above the mounting plate, and a kettle body shaping fixture is fixedly connected to the mounting seat. A second electric telescopic rod is fixedly connected to the top of the operating frame, and a connecting plate is fixedly connected to the output end of the second electric telescopic rod. A square block is fixedly connected to the connecting plate, and a pressure column is rotatably connected to the bottom of the square block. A second fixing rod is fixedly connected to the operating frame, and a top plate is fixedly connected to the top of the second fixing rod. A kettle bottom shaping fixture is fixedly connected to the middle of the top plate, with the square block located directly above the kettle bottom shaping fixture, and the kettle bottom shaping fixture located directly above the kettle body shaping fixture.

[0004] Furthermore, a mounting frame is fixedly connected inside the operating frame, a drive motor is fixedly connected inside the mounting frame, a first pulley is fixedly connected to the output end of the drive motor, a second pulley is engaged with the output end of the first electric telescopic rod via a key, the second pulley is rotatably connected inside the operating frame, the first pulley and the second pulley are connected via a transmission belt, a limit ring is fixedly connected to the output end of the first electric telescopic rod, and the output end of the first electric telescopic rod is rotatably connected to the first electric telescopic rod.

[0005] Furthermore, the operating frame is equipped with a welding drive assembly, which includes a fixed leg fixedly connected to the surface of the operating frame. An X-axis moving module is fixedly connected to the top of the fixed leg. A Y-axis moving module is slidably connected to the X-axis moving module. A Z-axis moving module is slidably connected to the Y-axis moving module. A height fine-tuning module is slidably connected to the Z-axis moving module. A laser welding head is fixedly connected to one end of the height fine-tuning module.

[0006] Furthermore, the top of the operating frame is provided with a protective housing, the protective housing is provided with a placement opening, the protective housing is provided with a display screen, the bottom of the display screen is provided with a touch screen, and the bottom of the placement opening is provided with a start button. The start button is provided in two sets and is electrically connected to two sets of mounting and positioning mechanisms respectively.

[0007] Furthermore, the bottom of the operating frame is hinged with two sets of cabinet doors, and the bottom of the operating frame is provided with four sets of evenly distributed casters.

[0008] Furthermore, the two sets of installation and positioning mechanisms are horizontally arranged, the welding drive assembly is located behind the installation and positioning mechanism, the body shaping fixture is fixedly installed on the mounting base by screws, the bottom shaping fixture is fixedly installed on the top plate by screws, and the square block is fixedly connected to the connecting plate by screws.

[0009] Furthermore, a motor for driving the Y-axis moving module is fixedly connected to the X-axis moving module, a motor for driving the Z-axis moving module is fixedly connected to the Y-axis moving module, and a motor for driving the height fine-tuning module is fixedly connected to the Z-axis moving module. Beneficial effects

[0010] I. This utility model adopts two sets of independently operating installation and positioning mechanisms, which can effectively improve the utilization rate of the equipment and thus improve the production efficiency. Furthermore, the body molding fixture and the bottom molding fixture are designed to be detachable with screws, making it easy to replace them according to different product sizes and effectively saving replacement time.

[0011] Second, this utility model can adapt to products of different sizes for welding by adjusting the position of the laser welding head. During the welding process, the drive motor can drive the pot body to rotate. At this time, under the action of the pressure column, the pot body and the bottom of the pot can rotate synchronously, which improves the welding yield. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a partial structural diagram of the present invention. Figure 1 ;

[0014] Figure 3 This is a partial structural diagram of the present invention. Figure 2 .

[0015] In the diagram: 1. Operating frame; 2. Mounting and positioning mechanism; 201. First electric telescopic rod; 202. First fixed rod; 203. Mounting plate; 204. Mounting base; 205. Kettle body contour jig; 206. Second electric telescopic rod; 207. Connecting plate; 208. Square block; 209. Second fixed rod; 210. Top plate; 211. Kettle bottom contour jig; 212. Pressure column; 301. Mounting frame; 302. Drive motor; 303. First pulley; 30 4. Flat key; 305. Second pulley; 306. Transmission belt; 307. Limiting ring; 4. Welding drive assembly; 401. Fixed leg; 402. X-axis moving module; 403. Y-axis moving module; 404. Z-axis moving module; 405. Height fine-tuning module; 406. Laser welding head; 501. Protective housing; 502. Placement port; 503. Display screen; 504. Touch screen; 505. Start button; 601. Cabinet door; 602. Casters. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-3As shown, a dual-station welding machine for round bottom plates of a kettle includes an operating frame 1. The operating frame 1 contains two sets of mounting and positioning mechanisms 2. Each mounting and positioning mechanism 2 includes a mounting plate 203 fixedly connected to the operating frame 1. A first fixing rod 202 is fixedly connected to the bottom of the mounting plate 203. A first electric telescopic rod 201 is fixedly connected to the bottom of the first fixing rod 202. A mounting base 204 is fixedly connected to the output end of the first electric telescopic rod 201. The mounting base 204 is located above the mounting plate 203, and a kettle body conforming fixture 205 is fixedly connected to the mounting base 204. A second electric telescopic rod 206 is fixedly connected to the top of the operating frame 1. A connecting plate 207 is fixedly connected to the output end of the retractable rod 206. A square block 208 is fixedly connected to the connecting plate 207. A pressure column 212 is rotatably connected to the bottom of the square block 208. A second fixed rod 209 is fixedly connected to the operating frame 1. A top plate 210 is fixedly connected to the top of the second fixed rod 209. A kettle bottom contour jig 211 is fixedly connected to the middle of the top plate 210. The square block 208 is located directly above the kettle bottom contour jig 211. The kettle bottom contour jig 211 is located directly above the kettle body contour jig 205. By adopting two sets of independently operating installation and positioning mechanisms 2, the utilization rate of the equipment can be effectively improved, thereby improving the production efficiency.

[0018] As a technical optimization of this utility model, an installation frame 301 is fixedly connected inside the operating frame 1. A drive motor 302 is fixedly connected inside the installation frame 301. A first pulley 303 is fixedly connected to the output end of the drive motor 302. A second pulley 305 is engaged with the output end of the first electric telescopic rod 201 through a flat key 304. The second pulley 305 is rotatably connected inside the operating frame 1. The first pulley 303 and the second pulley 305 are connected through a transmission belt 306. A limit ring 307 is fixedly connected to the output end of the first electric telescopic rod 201. The output end of the first electric telescopic rod 201 is rotatably connected to the first electric telescopic rod 201.

[0019] As a technical optimization of this utility model, the operating frame 1 is provided with a welding drive assembly 4. The welding drive assembly 4 includes a fixed leg 401 fixedly connected to the surface of the operating frame 1. An X-axis moving module 402 is fixedly connected to the top of the fixed leg 401. A Y-axis moving module 403 is slidably connected to the X-axis moving module 402. A Z-axis moving module 404 is slidably connected to the Y-axis moving module 403. A height fine-tuning module 405 is slidably connected to the Z-axis moving module 404. A laser welding head 406 is fixedly connected to one end of the height fine-tuning module 405. By adjusting the position of the laser welding head 406, welding can be performed on products of different sizes.

[0020] As a technical optimization of this utility model, the top of the operating frame 1 is provided with a protective shell 501, the protective shell 501 is provided with a placement port 502, the protective shell 501 is provided with a display screen 503, the lower part of the display screen 503 is provided with a touch screen 504, the bottom of the placement port 502 is provided with a start button 505, the start button 505 is provided with two sets and is electrically connected to the two sets of mounting positioning mechanisms 2 respectively.

[0021] As a technical optimization of this utility model, the bottom of the operating frame 1 is hinged with two sets of cabinet doors 601, and the bottom of the operating frame 1 is provided with four sets of evenly distributed casters 602.

[0022] As a technical optimization of this utility model, the two sets of installation and positioning mechanisms 2 are horizontally arranged, the welding drive assembly 4 is located behind the installation and positioning mechanism 2, the body shaping fixture 205 is fixedly installed on the mounting base 204 by screws, the bottom shaping fixture 211 is fixedly installed on the top plate 210 by screws, and the square block 208 is fixedly connected to the connecting plate 207 by screws. The body shaping fixture 205 and the bottom shaping fixture 211 are detachable by screws, which is convenient for replacement according to different sizes of products and effectively saves replacement time.

[0023] As a technical optimization of this utility model, a motor for driving the Y-axis moving module 403 is fixedly connected to the X-axis moving module 402, a motor for driving the Z-axis moving module 404 is fixedly connected to the Y-axis moving module 403, and a motor for driving the height fine-tuning module 405 is fixedly connected to the Z-axis moving module 404.

[0024] Working principle: The operator places the pot body to be welded upside down on the pot body conforming fixture 205, then places the pot bottom inside the pot bottom conforming fixture 211. The first electric telescopic rod 201 is activated to push the mounting base 204, causing the pot body conforming fixture 205 to move upward, so that the pot body fits against the pot bottom. Then, the second electric telescopic rod 206 is activated to push the connecting plate 207 and the square block 208 up and down, so that the pressure column 212 fits against the pot bottom. Then, the positions of the Y-axis moving module 403, Z-axis moving module 404, height fine-tuning module 405 and laser welding head 406 are adjusted in sequence, so that the laser welding head 406 is located at the position on the pot bottom to be welded. Finally, the drive motor 302 is activated to drive the first pulley 303 to rotate, and under the action of the transmission belt 306, it drives the second pulley 305 to rotate. At this time, the pot body and pot bottom can be rotated by the pot body conforming fixture 205, and the pressure column 212 rotates synchronously, so that the pot body and pot bottom can be welded by the laser welding head 406.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual-station welding machine for round bottom plates of a kettle, characterized in that: The system includes an operating frame (1), which contains two sets of mounting and positioning mechanisms (2). Each mounting and positioning mechanism (2) includes a mounting plate (203) fixedly connected to the operating frame (1). A first fixing rod (202) is fixedly connected to the bottom of the mounting plate (203). A first electric telescopic rod (201) is fixedly connected to the bottom of the first fixing rod (202). A mounting base (204) is fixedly connected to the output end of the first electric telescopic rod (201). The mounting base (204) is located above the mounting plate (203), and a kettle body shaping fixture (205) is fixedly connected to the mounting base (204). A second electric... The output end of the telescopic rod (206) is fixedly connected to the connecting plate (207), and a square block (208) is fixedly connected to the connecting plate (207). A pressure column (212) is rotatably connected to the bottom of the square block (208). A second fixed rod (209) is fixedly connected to the operating frame (1). A top plate (210) is fixedly connected to the top of the second fixed rod (209). A kettle bottom shaping fixture (211) is fixedly connected to the middle of the top plate (210). The square block (208) is located directly above the kettle bottom shaping fixture (211), and the kettle bottom shaping fixture (211) is located directly above the kettle body shaping fixture (205).

2. The dual-station welding machine for round bottom plates of a kettle as described in claim 1, characterized in that: An installation frame (301) is fixedly connected inside the operating frame (1). A drive motor (302) is fixedly connected inside the installation frame (301). A first pulley (303) is fixedly connected to the output end of the drive motor (302). A second pulley (305) is engaged with the output end of the first electric telescopic rod (201) through a flat key (304). The second pulley (305) is rotatably connected inside the operating frame (1). The first pulley (303) and the second pulley (305) are connected through a transmission belt (306). A limit ring (307) is fixedly connected to the output end of the first electric telescopic rod (201). The output end of the first electric telescopic rod (201) is rotatably connected to the first electric telescopic rod (201).

3. The dual-station welding machine for round bottom plates of a kettle as described in claim 2, characterized in that: The operating frame (1) is provided with a welding drive assembly (4). The welding drive assembly (4) includes a fixed leg (401) fixedly connected to the surface of the operating frame (1). An X-axis moving module (402) is fixedly connected to the top of the fixed leg (401). A Y-axis moving module (403) is slidably connected to the X-axis moving module (402). A Z-axis moving module (404) is slidably connected to the Y-axis moving module (403). A height fine-tuning module (405) is slidably connected to the Z-axis moving module (404). A laser welding head (406) is fixedly connected to one end of the height fine-tuning module (405).

4. The dual-station welding machine for round bottom plates of a kettle as described in claim 3, characterized in that: The top of the operating frame (1) is provided with a protective housing (501), the protective housing (501) is provided with a placement port (502), the protective housing (501) is provided with a display screen (503), the lower part of the display screen (503) is provided with a touch screen (504), the bottom of the placement port (502) is provided with a start button (505), the start button (505) is provided with two sets and is electrically connected to the two sets of mounting positioning mechanisms (2).

5. A dual-station welding machine for round bottom plates of a kettle as described in claim 4, characterized in that: The bottom of the operating frame (1) is hinged with two sets of cabinet doors (601), and the bottom of the operating frame (1) is provided with four sets of evenly distributed casters (602).

6. A dual-station welding machine for round bottom plates of a kettle as described in claim 5, characterized in that: The two sets of installation positioning mechanisms (2) are set horizontally. The welding drive assembly (4) is located behind the installation positioning mechanism (2). The body shaping fixture (205) is fixedly installed on the mounting base (204) by screws. The bottom shaping fixture (211) is fixedly installed on the top plate (210) by screws. The square block (208) is fixedly connected to the connecting plate (207) by screws.

7. A dual-station welding machine for round bottom plates of a kettle as described in claim 6, characterized in that: The X-axis moving module (402) is fixedly connected to a motor that drives the Y-axis moving module (403), the Y-axis moving module (403) is fixedly connected to a motor that drives the Z-axis moving module (404), and the Z-axis moving module (404) is fixedly connected to a motor that drives the height fine-tuning module (405).