Automatic circle welding device for lug plates

Abstract

The utility model belongs to the technical field of lug plate welding, and particularly relates to an automatic lug plate circle welding device which comprises a bottom plate, a welding gun mechanism fixedly connected to the upper side of the bottom plate, a rotary driving mechanism fixedly connected to the upper side of the bottom plate, a center rod fixedly connected to the rotary driving mechanism, and a circular pipe clamp fixedly connected to the upper end of the center rod. An adjusting arm is fixedly connected to the outer side of the center rod, a guide shell is fixedly connected to the adjusting arm, a sliding block is horizontally and slidably connected to the interior of the guide shell, a lug plate clamp is fixedly connected to the sliding block, two spring bodies located on the two sides of the sliding block are fixedly connected to the interior of the guide shell, and the spring bodies are fixedly connected with the sliding block. According to the utility model, the lug plate main body can be self-positioned by utilizing the curved surface characteristics of the circular tube body and the arc-shaped side edge, the precision requirement of the adjusting arm on the position adjustment of the lug plate main body is reduced, and the positioning difficulty is reduced, so that the circular tube body and the lug plate main body can be conveniently welded.

Description

Technical Field

[0001] This utility model belongs to the field of ear plate welding technology, specifically relating to an automatic ear plate welding device. Background Technology

[0002] In the existing field of ear plate welding, the welding operation between the round tube body and the ear plate body faces the problems of high positioning difficulty and high adjustment accuracy requirements.

[0003] Traditional welding equipment usually relies on manual adjustment of the ear plate position to achieve the fit between the curved side of the ear plate and the round tube. This process is not only time-consuming and labor-intensive, but also difficult to guarantee positioning accuracy, which can easily lead to welding position deviation and affect welding quality and efficiency.

[0004] Although some automatic welding devices exist in the prior art, such as the special device for automatic welding of ear plates disclosed in Chinese Patent No. CN211516498U, which achieves a certain degree of automated welding through mechanical structure, the ear plate positioning still requires a complex adjustment mechanism due to the high precision required for ear plate positioning, and the high technical requirements for operators, making it impossible to fully utilize the curved surface characteristics of the workpiece to achieve self-positioning. Utility Model Content

[0005] The purpose of this invention is to provide an automatic ear plate welding device that can use the curved surface characteristics of the round tube and the arc side to self-position the ear plate body, reduce the accuracy requirements of the adjusting arm for adjusting the position of the ear plate body, reduce the positioning difficulty, and thus facilitate the welding of the round tube and the ear plate body.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] An automatic ear plate welding device includes a base plate, a welding gun mechanism fixedly connected to the upper side of the base plate, a rotary drive mechanism fixedly connected to the upper side of the base plate, a central rod fixedly connected to the rotary drive mechanism, a round tube clamp fixedly connected to the upper end of the central rod, an adjusting arm fixedly connected to the outer side of the central rod, a guide shell fixedly connected to the adjusting arm, a slider horizontally slidably connected inside the guide shell, and an ear plate clamp fixedly connected to the slider.

[0008] Furthermore, two spring bodies are fixedly connected inside the guide shell, each located on one side of the slider, and the spring bodies are fixedly connected to the slider.

[0009] Furthermore, both ends of the guide shell are rotatably connected to a first threaded rod, and a connecting plate is threadedly connected to the first threaded rod. The connecting plate is slidably connected inside the guide shell, and the end of the connecting plate is fixedly connected to the spring body.

[0010] Furthermore, an indicator block is fixedly connected to the connecting plate, and a scale adapted to the indicator block is fixedly connected to the upper side of the guide shell.

[0011] Furthermore, the adjusting arm includes an extended arm fixedly connected to the outside of the central rod, a vertically arranged vertical telescopic mechanism fixedly connected to the extended arm, a horizontally arranged horizontal telescopic mechanism fixedly connected to the upper end of the vertical telescopic mechanism, and a guide shell fixedly connected to one end of the horizontal telescopic mechanism.

[0012] Furthermore, the ear plate clamp includes a U-shaped frame fixedly connected to the slider, a movable clamping plate is vertically connected inside the U-shaped frame, and a second threaded rod is threadedly connected to the U-shaped frame, the lower end of the second threaded rod being rotatably connected to the movable clamping plate.

[0013] Furthermore, the circular tube clamp includes a central tube fixedly connected to the upper end of the central rod and an air pump fixedly connected to the upper side of the base plate. The air pump is connected to the central tube through an air guide hose. Multiple extension tubes connected to the central tube are fixedly connected to the periphery of the central tube. A support rod is slidably connected to the end of the extension tube. A top block is fixedly connected to the end of the support rod. A piston plate that is interference-fitted with the extension tube is fixedly connected to one end of the support rod located inside the extension tube.

[0014] Furthermore, a return spring is sleeved on the outer side of the support rod, one end of the return spring abuts against the piston plate, and the other end of the return spring abuts against the inner wall of the extension tube on the side away from the central tube.

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

[0016] This utility model discloses an automatic ear plate welding device. When welding a circular tube and an ear plate body, the circular tube is first fixed. Then, the curved surface is used to convert the force of the ear plate body moving horizontally toward the circular tube into a force of left and right horizontal movement. The slider slides on the guide shell, so that the ear plate body moves to a position where the arc-shaped side and the circular tube body are completely in contact, thereby completing the positioning of the ear plate body. Thus, when positioning the ear plate body, the curved surface characteristics of the circular tube body and the arc-shaped side can be used to self-position the ear plate body, reducing the accuracy requirements for the adjustment arm to adjust the position of the ear plate body, reducing the positioning difficulty, and thus facilitating the welding of the circular tube body and the ear plate body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the circular tube body and the ear plate body after the present invention is fixed.

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

[0019] Figure 3This is a schematic diagram of the structure of the guide shell of this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the guide shell of this utility model;

[0021] Figure 5 This is a cross-sectional structural diagram of the circular tube clamp of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Base plate; 2. Welding torch mechanism; 3. Circular tube body; 4. Ear plate body; 5. Rotary drive mechanism; 6. Center rod; 7. Extended arm; 8. Vertical telescopic mechanism; 9. Horizontal telescopic mechanism; 10. Guide shell; 11. Slider; 12. Spring body; 13. Connecting plate; 14. First threaded rod; 15. Indicator block; 16. Scale; 17. U-shaped frame; 18. Movable clamping plate; 19. Second threaded rod; 20. Center tube; 21. Extended tube; 22. Piston plate; 23. Support rod; 24. Top block; 25. Air guide hose; 26. Return spring; 27. Air pump; 28. Arc-shaped side. Detailed Implementation

[0024] 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.

[0025] An automatic round ear plate welding device is used to assist in welding a round tube 3 and an ear plate body 4. An arc-shaped side 28 is provided on one side of the ear plate body 4. When the arc-shaped side 28 of the ear plate body 4 abuts against the round tube 3, the round tube 3 and the ear plate body 4 can be welded.

[0026] like Figures 1-5 As shown, an automatic ear plate welding device includes a base plate 1. A welding gun mechanism 2 is fixedly connected to the upper side of the base plate 1. The welding gun mechanism 2 can be a handheld welding gun or an automatic welding gun, such as the automatic ear plate welding device disclosed in Chinese Patent No. CN211516498U. It can also include a robotic arm fixedly connected to the base plate 1, with a welding gun mounted on the robotic arm. This is a mature existing technology, as long as it can weld the connection between the round tube body 3 and the ear plate body 4, it is sufficient. This technical solution will not be described in detail.

[0027] The core of this technical solution lies in the improvement of the fixing mechanism between the cylindrical body 3 and the ear plate body 4, specifically as follows: Figures 1-4As shown, a rotary drive mechanism 5 is fixedly connected to the upper side of the base plate 1. The rotary drive mechanism 5 can be a servo motor or an electric rotary table with a self-locking function. A central rod 6 is fixedly connected to the rotary drive mechanism 5. A round tube clamp is fixedly connected to the upper end of the central rod 6. An adjusting arm is fixedly connected to the outer side of the central rod 6. A guide shell 10 is fixedly connected to the adjusting arm. A slider 11 is horizontally slidably connected inside the guide shell 10. An ear plate clamp is fixedly connected to the slider 11.

[0028] At this point, the cylindrical tube 3 is fixed by the cylindrical tube clamp, and then the ear plate body 4 is assembled on the ear plate clamp. The ear plate body 4 can then be moved by the adjusting arm. When the arc-shaped side 28 of the ear plate body 4 moves to abut against the cylindrical tube 3, since both the outer wall of the cylindrical tube 3 and the arc-shaped side 28 are provided with curved surfaces, the force of the ear plate body 4 moving horizontally toward the cylindrical tube 3 can be converted into a force of left and right horizontal movement by using the curved surfaces. This allows the slider 11 to slide on the guide shell 10, so that the ear plate body 4 moves to the position where the arc-shaped side 28 and the cylindrical tube 3 are completely in contact, thereby completing the positioning of the ear plate body 4. Thus, when positioning the ear plate body 4, the curved surface characteristics of the cylindrical tube 3 and the arc-shaped side 28 can be used to self-position the ear plate body 4, reducing the accuracy requirements for the adjusting arm to adjust the position of the ear plate body 4 and reducing the positioning difficulty.

[0029] After the round tube 3 and the ear plate body 4 are fixed, the round tube 3 and the ear plate body 4 can be welded by the welding gun mechanism 2. During the welding process, the round tube 3 fixedly connected to the round tube clamp and the ear plate body 4 fixedly connected to the ear plate clamp can be rotated by starting the rotation drive mechanism 5. This allows the angle of the round tube 3 and the ear plate body 4 to be automatically adjusted during the welding process, making it convenient to weld the round tube 3 and the ear plate body 4.

[0030] The slider 11 can slide freely inside the guide shell 10, provided that the length of the guide shell 10 that can slide is less than half the width of the ear plate body 4.

[0031] The slider 11 can also be self-positioned by a spring or a magnet, such as... Figures 3-4 As shown, two spring bodies 12 are fixedly connected inside the guide shell 10, located on both sides of the slider 11 respectively. The spring bodies 12 and the slider 11 are fixedly connected, and the slider 11 is initially positioned by the spring bodies 12.

[0032] Meanwhile, both ends of the guide shell 10 are rotatably connected to a first threaded rod 14, and a connecting plate 13 is threadedly connected to the first threaded rod 14. The connecting plate 13 is slidably connected inside the guide shell 10. The position of the connecting plate 13 can be adjusted by rotating the first threaded rod 14. The ends of the connecting plate 13 and the spring body 12 are fixedly connected. At this time, the elastic force applied by the spring body 12 to the slider 11 can be adjusted by adjusting the position of the connecting plate 13.

[0033] like Figures 3-4 As shown, an indicator block 15 is fixedly connected to the connecting plate 13, and a scale 16 adapted to the indicator block 15 is fixedly connected to the upper side of the guide shell 10. The position of the connecting plate 13 can be determined by the relative positions of the indicator block 15 and the scale 16.

[0034] Among them, such as Figures 1-2 As shown, the adjusting arm includes an extended arm 7 fixedly connected to the outside of the central rod 6. A vertically arranged vertical telescopic mechanism 8 is fixedly connected to the extended arm 7. A horizontally arranged horizontal telescopic mechanism 9 is fixedly connected to the upper end of the vertical telescopic mechanism 8. The guide shell 10 is fixedly connected to one end of the horizontal telescopic mechanism 9. At this time, the height of the ear plate clamp can be adjusted by activating the vertical telescopic mechanism 8, and the horizontal position of the ear plate clamp can be adjusted by activating the horizontal telescopic mechanism 9.

[0035] Here, both the vertical telescopic mechanism 8 and the horizontal telescopic mechanism 9 can be electric telescopic rods, cylinders, or motor screw telescopic mechanisms.

[0036] Specifically, such as Figure 1 and Figures 3-4 As shown, the ear plate clamp includes a U-shaped frame 17 fixedly connected to the slider 11. A movable clamping plate 18 is vertically connected inside the U-shaped frame 17. A second threaded rod 19 is threadedly connected to the U-shaped frame 17. The lower end of the second threaded rod 19 is rotatably connected to the movable clamping plate 18. At this time, the height of the movable clamping plate 18 can be adjusted by rotating the second threaded rod 19, so that the ear plate body 4 can be clamped between the lower inner wall of the U-shaped frame 17 and the movable clamping plate 18.

[0037] like Figures 1-2 and Figure 5As shown, the circular tube clamp includes a central tube 20 fixedly connected to the upper end of the central rod 6 and an air pump 27 fixedly connected to the upper side of the base plate 1. The air pump 27 is connected to the central tube 20 through an air guide hose 25. Multiple extension tubes 21 connected to the central tube 20 are fixedly connected to the periphery of the central tube 20. A support rod 23 is slidably connected to the end of the extension tube 21. A rubber top block 24 is fixedly connected to the end of the support rod 23. A piston plate 22 that is interference-fitted with the extension tube 21 is fixedly connected to one end of the support rod 23 inside the extension tube 21. When the circular tube 3 is placed outside the central tube 20, the air pump 27 is started to inflate the central tube 20, which in turn introduces gas into the extension tube 21 and pushes the piston plate 22. This causes the piston plate 22 to extend outward, along with the top block 24, until the top block 24 abuts against the inner wall of the circular tube 3, thus clamping and positioning the circular tube 3.

[0038] Meanwhile, a return spring 26 is sleeved on the outside of the support rod 23. One end of the return spring 26 abuts against the piston plate 22, and the other end of the return spring 26 abuts against the inner wall of the extension tube 21 on the side away from the central tube 20. This allows the support rod 23 to retract and return to the inside of the extension tube 21, reducing the volume of the round tube clamp and making it easier for the round tube body 3 to be sleeved on the outside of the round tube clamp.

[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. An automatic ear plate welding device, characterized in that: Includes a base plate (1), a welding gun mechanism (2) is fixedly connected to the upper side of the base plate (1), a rotary drive mechanism (5) is fixedly connected to the upper side of the base plate (1), a central rod (6) is fixedly connected to the rotary drive mechanism (5), a round tube clamp is fixedly connected to the upper end of the central rod (6), an adjusting arm is fixedly connected to the outer side of the central rod (6), a guide shell (10) is fixedly connected to the adjusting arm, a slider (11) is horizontally slidably connected inside the guide shell (10), and an ear plate clamp is fixedly connected to the slider (11).

2. The automatic ear plate welding device according to claim 1, characterized in that: The guide shell (10) has two spring bodies (12) fixedly connected inside, which are located on both sides of the slider (11). The spring bodies (12) and the slider (11) are fixedly connected.

3. The automatic ear plate welding device according to claim 2, characterized in that: Both ends of the guide shell (10) are rotatably connected to a first threaded rod (14), and a connecting plate (13) is threadedly connected to the first threaded rod (14). The connecting plate (13) is slidably connected inside the guide shell (10), and the end of the connecting plate (13) is fixedly connected to the spring body (12).

4. The automatic ear plate welding device according to claim 3, characterized in that: An indicator block (15) is fixedly connected to the connecting plate (13), and a scale (16) that matches the indicator block (15) is fixedly connected to the upper side of the guide shell (10).

5. The automatic ear plate welding device according to claim 1, characterized in that: The adjusting arm includes an extended arm (7) fixedly connected to the outside of the center rod (6), a vertical telescopic mechanism (8) fixedly connected to the extended arm (7), a horizontal telescopic mechanism (9) fixedly connected to the upper end of the vertical telescopic mechanism (8), and a guide shell (10) fixedly connected to one end of the horizontal telescopic mechanism (9).

6. The automatic ear plate welding device according to claim 1, characterized in that: The ear plate clamp includes a U-shaped frame (17) fixedly connected to the slider (11), a movable clamping plate (18) is vertically connected inside the U-shaped frame (17), and a second threaded rod (19) is threadedly connected to the U-shaped frame (17), the lower end of the second threaded rod (19) and the movable clamping plate (18) are rotatably connected.

7. The automatic ear plate welding device according to claim 1, characterized in that: The circular tube clamp includes a central tube (20) fixedly connected to the upper end of the central rod (6) and an air pump (27) fixedly connected to the upper side of the base plate (1). The air pump (27) is connected to the central tube (20) through an air guide hose (25). Multiple extension tubes (21) connected to the central tube (20) are fixedly connected to the periphery of the central tube (20). A support rod (23) is slidably connected to the end of the extension tube (21). A top block (24) is fixedly connected to the end of the support rod (23). A piston plate (22) that is interference-fitted with the extension tube (21) is fixedly connected to one end of the support rod (23) inside the extension tube (21).

8. The automatic ear plate welding device according to claim 7, characterized in that: A return spring (26) is sleeved on the outside of the support rod (23). One end of the return spring (26) abuts against the piston plate (22), and the other end of the return spring (26) abuts against the inner wall of the extension tube (21) on the side away from the central tube (20).

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