Efficient welding forming device for heat exchanger plates

Abstract

The utility model belongs to the technical field of heat exchanger plate welding, and particularly relates to a heat exchanger plate efficient welding forming device which comprises a resistance welding machine body, a welding station is arranged on one side of the resistance welding machine body, a vertical pressurization support is fixedly connected to one side of the resistance welding machine body, and two electrode parts are installed on the vertical pressurization support. The two electrode parts are located on the upper side and the lower side of the welding station correspondingly, each electrode part comprises a U-shaped support fixedly connected to a piston rod of the second electric push rod, a central shaft rod is rotationally connected into each U-shaped support, and a conductive wheel is fixedly connected to the outer side of each central shaft rod through a connecting frame. The part, close to the welding station, of the conductive wheel is in a power-on state, and the other parts of the conductive wheel are in a power-off state. According to the utility model, the electric energy consumption can be greatly reduced in the efficient welding process of the heat exchanger plate.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger plate welding technology, and specifically relates to a high-efficiency welding and forming device for heat exchanger plates. Background Technology

[0002] In the field of heat exchanger manufacturing, plate welding is one of the core processes, and its welding quality directly affects heat exchange efficiency and equipment lifespan. Resistance welding technology is widely used in the continuous seam welding or spot welding process of plate heat exchangers due to its advantages such as concentrated heating, high efficiency, and ease of automation.

[0003] However, the conductive wheels (or electrodes) of existing resistance welding machines typically need to be kept energized throughout the entire process. But in actual welding, only the local area where the conductive wheel contacts the workpiece participates in current conduction, while the remaining non-contact areas remain energized. This results in a large amount of electrical energy being lost as Joule heat to the electrode body and the surrounding environment, causing energy waste. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency welding and forming device for heat exchanger plates, which can greatly reduce power consumption during the high-efficiency welding process of heat exchanger plates.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A high-efficiency welding and forming device for heat exchanger plates includes a resistance welding machine body. One side of the resistance welding machine body is a welding station. A vertical pressure support is fixedly connected to one side of the resistance welding machine body. Two electrode parts are installed on the vertical pressure support. The two electrode parts are located above and below the welding station, respectively. Each electrode part includes a U-shaped support fixedly connected to a second electric push rod piston rod. A central shaft is rotatably connected inside the U-shaped support. A conductive wheel is fixedly connected to the outside of the central shaft rod through a connecting frame. During the rotation of the conductive wheel, a portion of the conductive wheel near the welding station is energized, while the remaining portion of the conductive wheel is de-energized.

[0007] Furthermore, the vertical pressure support includes a first electric push rod fixedly connected to one side of the resistance welding machine body. The piston rod of the first electric push rod is fixedly connected to a C-shaped frame. Two second electric push rods are fixedly connected to the C-shaped frame. The two electrode parts are respectively installed on the piston rods of the two second electric push rods.

[0008] Furthermore, two conveying rollers located at the front and rear sides of the welding station are fixedly connected to one side of the resistance welding machine body.

[0009] Furthermore, the conductive wheel is divided into multiple arc-shaped conductive parts arranged in a ring array, with the multiple arc-shaped conductive parts connected end to end.

[0010] Furthermore, the arc-shaped conductive part is divided into multiple arc-shaped conductive sheets along the axial direction of the central shaft.

[0011] Furthermore, each of the multiple arc-shaped conductive sheets is fixedly connected to a push-button switch and a push-button kinetic energy transmission group adapted to the push-button switch. The U-shaped support is fixedly connected to an arc-shaped limiting plate located inside the multiple push-button kinetic energy transmission groups via a connecting plate, and the arc-shaped limiting plate is located on the side of the central shaft near the welding station.

[0012] The pressing kinetic energy transmission group includes a guide frame fixedly connected to the inner side of the arc-shaped conductive sheet. A pressure plate is vertically slidably connected inside the guide frame. A triangular pressing block is fixedly connected to the pressure plate. The triangular pressing block can slide to the side of the guide frame away from the arc-shaped conductive sheet. An elastic pushing member is provided between the pressure plate and the arc-shaped conductive sheet.

[0013] Furthermore, guide plates are fixedly connected to both sides of the arc-shaped limiting plate, and the end of the guide plate away from the arc-shaped limiting plate is inclined towards the central shaft.

[0014] Furthermore, a rotating wheel is rotatably connected to the end of the triangular extrusion block away from the arc-shaped conductive sheet.

[0015] The technical effects achieved by this utility model are as follows:

[0016] This utility model discloses a high-efficiency welding and forming device for heat exchanger plates. During the welding process of heat exchanger plates, only the part of the conductive wheel in contact with the heat exchanger plate needs to be kept energized to complete the power transmission and ensure efficient welding of the heat exchanger plates. It is not necessary to keep all parts of the conductive wheel energized, which greatly reduces power consumption. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the electrode part of this utility model;

[0019] Figure 3 This is a side view of the structure of the electrode part of this utility model;

[0020] Figure 4 This is a utility model Figure 3 A magnified view of a portion of point A in the middle.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Resistance welding machine body; 2. First electric push rod; 3. C-shaped frame; 4. Second electric push rod; 5. Electrode section; 6. Conveyor roller; 7. U-shaped support; 8. Connecting frame; 9. Fixing ring; 10. Arc-shaped conductive sheet; 11. Connecting plate; 12. Arc-shaped limiting plate; 13. Guide plate; 14. Press-type switch; 15. Press kinetic energy transmission group; 16. Guide frame; 17. Pressure plate; 18. First magnet; 19. Second magnet; 20. Triangular extrusion block; 21. Rotating wheel; 22. Central shaft. Detailed Implementation

[0023] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0024] like Figure 1 As shown, a high-efficiency welding and forming device for heat exchanger plates includes a resistance welding machine body 1. One side of the resistance welding machine body 1 is a welding station. A vertical pressure support is fixedly connected to one side of the resistance welding machine body 1. Two electrode parts 5 are installed on the vertical pressure support. The two electrode parts 5 are located on the upper and lower sides of the welding station, respectively. When the heat exchanger plate moves between the two electrode parts 5, the vertical pressure support drives the electrode parts 5 to abut against the heat exchanger plate at the welding station, so that the heat exchanger plate can be welded by the electrode parts 5 in contact with the heat exchanger plate.

[0025] like Figures 1-3 As shown, the vertical pressure support in this technical solution includes a first electric push rod 2 fixedly connected to one side of the resistance welding machine body 1. The piston rod of the first electric push rod 2 is fixedly connected to a C-shaped frame 3. Two second electric push rods 4 are fixedly connected to the C-shaped frame 3. Two electrode parts 5 are respectively installed on the piston rods of the two second electric push rods 4. The position of the electrode parts 5 can be adjusted by starting the first electric push rod 2 and the second electric push rod 4.

[0026] Meanwhile, two conveying rollers 6 are fixedly connected to one side of the resistance welding machine body 1, located at the front and rear of the welding station respectively, and the heat exchanger plates can be guided by the conveying rollers 6.

[0027] To reduce power consumption, this technical solution improves the electrode part 5. Specifically, the electrode part 5 includes a U-shaped support 7 fixedly connected to the piston rod of the second electric push rod 4. A central shaft 22 is rotatably connected inside the U-shaped support 7. A conductive wheel is fixedly connected to the outside of the central shaft 22 through a connecting frame 8. During the rotation of the conductive wheel, a part of the conductive wheel near the welding station is energized, while the rest of the conductive wheel is de-energized. Thus, during the welding of the heat exchanger plate, only the part of the conductive wheel in contact with the heat exchanger plate needs to be kept energized to complete the power transmission, ensuring efficient welding of the heat exchanger plate. It is not necessary to keep all parts of the conductive wheel energized, greatly reducing power consumption.

[0028] Furthermore, during the welding process, the rotation of the conductive wheel can reduce the resistance to the heat exchanger plates, reduce frictional damage, and allow the conductive wheel to move quickly on the heat exchanger plates.

[0029] Specifically, such as Figures 2-3 As shown, this technical solution divides the conductive wheel into multiple arc-shaped conductive parts arranged in a ring array. The multiple arc-shaped conductive parts are connected end to end to form a circular structure. At this time, only the arc-shaped conductive part closest to the welding station needs to be energized.

[0030] Meanwhile, in order to further reduce power consumption, this technical solution divides the arc-shaped conductive part into multiple arc-shaped conductive sheets 10 along the axial direction of the central shaft 22. At this time, the number of arc-shaped conductive sheets 10 energized can be adjusted according to the required welding width, thereby reducing power consumption while ensuring welding effect.

[0031] In this technical solution, a fixing ring 9 is fixedly connected to the inner side of the conductive wheel, and two adjacent arc-shaped conductive sheets 10 are fixedly connected to the same fixing ring 9.

[0032] like Figures 2-4 As shown, this technical solution discloses one method of energizing the conductive wheel. Specifically, a push-button switch 14 and a push-button kinetic energy transmission group 15 adapted to the push-button switch 14 are fixedly connected to the inner side of each of the multiple arc-shaped conductive plates 10. When the push-button kinetic energy transmission group 15 is subjected to pressure, it will be pressed. The push-button switch 14 is powered through a conductive slip ring. When the push-button switch 14 is subjected to pressure, it can automatically energize the arc-shaped conductive plates 10. When the pressure on the push-button switch 14 is released, it can automatically de-energize the arc-shaped conductive plates 10.

[0033] The U-shaped support 7 is fixedly connected to an arc-shaped limiting plate 12 located inside the assembly of multiple pressing kinetic energy transmission groups 15 via a connecting plate 11. The arc-shaped limiting plate 12 is located on the side of the central shaft 22 closer to the welding station. When the arc-shaped conductive sheet 10 moves to the welding station, the pressing kinetic energy transmission group 15 on the arc-shaped conductive sheet 10 abuts against the arc-shaped limiting plate 12. Under the limiting action of the arc-shaped limiting plate 12, the pressing kinetic energy transmission group 15 applies pressure to the push-button switch 14. When the arc-shaped conductive sheet 10 moves out of the welding station, the pressure on the pressing kinetic energy transmission group 15 disappears, and the power to the arc-shaped conductive sheet 10 is automatically cut off.

[0034] Meanwhile, guide plates 13 are fixedly connected to both sides of the arc-shaped limiting plate 12. The end of the guide plate 13 away from the arc-shaped limiting plate 12 is inclined towards the central shaft 22. The setting of the guide plate 13 can reduce the jamming phenomenon of the pressing kinetic energy transmission group 15.

[0035] like Figure 4 As shown, the pressing kinetic energy transmission group 15 includes a guide frame 16 fixedly connected to the inner side of the arc-shaped conductive sheet 10. A pressure plate 17 is vertically slidably connected inside the guide frame 16. A triangular pressing block 20 is fixedly connected to the pressure plate 17. The triangular pressing block 20 can slide to the side of the guide frame 16 away from the arc-shaped conductive sheet 10. An elastic pushing member is provided between the pressure plate 17 and the arc-shaped conductive sheet 10 to drive the pressure plate 17 and the triangular pressing block 20 to move in a direction away from the arc-shaped conductive sheet 10.

[0036] The elastic pusher can be a return spring fixedly connected between the arc-shaped conductive sheet 10 and the pressure plate 17;

[0037] The elastic pusher can be a magnet, that is, the elastic pusher includes a first magnet 18 and a second magnet 19. The first magnet 18 is fixedly connected to the inner side of the arc-shaped conductive sheet 10, and the second magnet 19 is fixedly connected to the pressure plate 17. The first magnet 18 and the second magnet 19 repel each other magnetically. Under the magnetic force of the first magnet 18 and the second magnet 19, the pressure plate 17 will be pushed.

[0038] The end of the triangular extrusion block 20 away from the arc-shaped conductive sheet 10 can be rotatably connected to a rotating wheel 21. The rotation of the rotating wheel 21 can reduce the wear of the rotating wheel 21, the arc-shaped limiting plate 12, and the guide plate 13.

[0039] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A high-efficiency welding and forming device for heat exchanger plates, comprising a resistance welding machine body (1), one side of which is a welding station, and a vertical pressure support is fixedly connected to one side of which two electrode parts (5) are installed, the two electrode parts (5) being located above and below the welding station respectively, characterized in that: The electrode part (5) includes a U-shaped support (7) fixedly connected to the piston rod of the second electric push rod (4). A central shaft (22) is rotatably connected inside the U-shaped support (7). A conductive wheel is fixedly connected to the outside of the central shaft (22) through a connecting frame (8). During the rotation of the conductive wheel, a part of the conductive wheel near the welding station is in an energized state, while the rest of the conductive wheel is in an de-energized state.

2. The high-efficiency welding and forming device for heat exchanger plates according to claim 1, characterized in that: The vertical pressure support includes a first electric push rod (2) fixedly connected to one side of the resistance welding machine body (1). The piston rod of the first electric push rod (2) is fixedly connected to a C-shaped frame (3). Two second electric push rods (4) are fixedly connected to the C-shaped frame (3). The two electrode parts (5) are respectively installed on the piston rods of the two second electric push rods (4).

3. The high-efficiency welding and forming device for heat exchanger plates according to claim 1, characterized in that: Two conveying rollers (6) are fixedly connected to one side of the resistance welding machine body (1), located at the front and rear sides of the welding station respectively.

4. The high-efficiency welding and forming device for heat exchanger plates according to claim 1, characterized in that: The conductive wheel is divided into multiple arc-shaped conductive parts arranged in a ring array, with the multiple arc-shaped conductive parts connected end to end.

5. The high-efficiency welding and forming device for heat exchanger plates according to claim 4, characterized in that: The arc-shaped conductive part is divided into multiple arc-shaped conductive sheets (10) along the axial direction of the central shaft (22).

6. The high-efficiency welding and forming device for heat exchanger plates according to claim 5, characterized in that: Each of the multiple arc-shaped conductive sheets (10) is fixedly connected to a push-button switch (14) and a push-button kinetic energy transmission group (15) adapted to the push-button switch (14). The U-shaped support (7) is fixedly connected to an arc-shaped limiting plate (12) located inside the multiple push-button kinetic energy transmission groups (15) through a connecting plate (11). The arc-shaped limiting plate (12) is located on the side of the central shaft (22) close to the welding station. The pressing kinetic energy transmission group (15) includes a guide frame (16) fixedly connected to the inner side of the arc-shaped conductive sheet (10). A pressure plate (17) is vertically slidably connected inside the guide frame (16). A triangular pressing block (20) is fixedly connected to the pressure plate (17). The triangular pressing block (20) can slide to the side of the guide frame (16) away from the arc-shaped conductive sheet (10). An elastic pushing member is provided between the pressure plate (17) and the arc-shaped conductive sheet (10).

7. The device according to claim 6, characterized in that: Guide plates (13) are fixedly connected to both sides of the arc-shaped limiting plate (12), and the end of the guide plate (13) away from the arc-shaped limiting plate (12) is inclined toward the central shaft (22).

8. The device according to claim 6, characterized in that: The triangular extrusion block (20) is rotatably connected to a rotating wheel (21) at the end away from the arc-shaped conductive sheet (10).

Images