A welding device for special-shaped steel pipes

Abstract

This invention relates to the field of welding equipment technology and provides a welding device for irregularly shaped steel pipes. The device includes a base, a fixed frame mounted on the top of the base, a high-frequency motor mounted on one side of the fixed frame, and a stroke electric cylinder mounted on the other side of the fixed frame via a movable plate. A welding head is mounted on the output end of the stroke electric cylinder, a placement platform is provided at the bottom of the welding head, a cleaning motor is mounted on the placement platform, and a grinding wheel is mounted on the cleaning motor. Guide rails are fixedly connected to both sides of the top of the base near the placement platform, and a moving block is slidably connected to the guide rails. The output end of a moving electric cylinder is fixedly connected to one side of the moving block, and the cylinder body of the moving electric cylinder is mounted on one end of the guide rail. A fixed plate is fixedly connected to the top of the moving block, and a turntable is detachably connected to the top of the fixed plate. A slide rail is fixedly connected to the top of the turntable, and a clamping mechanism is mounted on the slide rail. Thus, this invention allows for the detachable connection between the turntable and the fixed plate, thereby adjusting the angle of the irregularly shaped pipe in the horizontal direction, and the grinding wheel achieves the grinding of welding slag.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology and provides a welding device for irregularly shaped steel pipes. Background Technology

[0002] The process of assembling irregularly shaped pipe fittings by welding can produce components with complex shapes and positions to meet special applications in fields such as energy, automotive, and electrical appliances. For smaller irregularly shaped pipe fitting welding assemblies with high sealing requirements but low load-bearing requirements, they are generally processed by brazing with soft solder on specialized welding equipment.

[0003] When welding irregularly shaped tubes, tooling fixtures are often used to ensure the dimensions of the welded parts. However, when using conventional tooling fixtures for welding, it is difficult to ensure the accuracy of the welding position when clamping irregularly shaped tubes at different angles and positions. In addition, conventional welding equipment lacks the ability to handle weld slag, making it inconvenient to use. Summary of the Invention

[0004] To address the aforementioned deficiencies, the present invention aims to provide a welding device for shaped steel pipes, specifically designed to solve the problem of welding shaped pipes at different positions and angles. The device includes a base, with support frames fixedly connected to both sides of the top of the base. A fixed frame is fixedly connected to the top of each support frame. A high-frequency motor is mounted on one side of each fixed frame, and a movable plate is mounted on the side of the fixed frame away from the high-frequency motor. A stroke electric cylinder is fixedly connected to the end of the movable plate away from the fixed frame. A welding head is mounted on the output end of the stroke electric cylinder, and a placement platform is provided at the bottom of the welding head. The placement platform is mounted on the top of the base. A cleaning electric cylinder is installed at one end of the placement platform. A cleaning motor is installed at the output end of the cleaning electric cylinder. The cleaning motor is slidably connected to the placement platform. A grinding wheel is installed at the output end of the cleaning motor. Guide rails are fixedly connected to both sides of the top of the base near the placement platform. A moving block is slidably connected to the guide rails. The output end of a moving electric cylinder is fixedly connected to one side of the moving block. The cylinder body of the moving electric cylinder is installed at one end of the guide rail. A fixed plate is fixedly connected to the top of the moving block. A turntable is detachably connected to the top of the fixed plate. A slide rail is fixedly connected to the top of the turntable. A clamping mechanism is installed on the slide rail.

[0005] Furthermore, a sliding groove is provided on the side of the fixed frame away from the high-frequency motor, the movable plate is slidably connected to the sliding groove, the movable plate is equipped with a lead screw nut, the lead screw nut is threadedly connected to a lead screw, one end of the lead screw is equipped with the output end of the stroke motor, and the other end is installed on the fixed frame through a bearing seat, and the stroke motor is installed on the fixed frame.

[0006] Furthermore, a fixing block is fixedly connected to the bottom of the placement platform, and the bottom of the fixing block is fixedly connected to the base.

[0007] Furthermore, the fixed disk has a rotating hole in the middle, and a rotating shaft is detachably connected to the rotating hole. The end of the rotating shaft away from the rotating hole is rotatably connected to the turntable. The fixed disk has fixing holes evenly distributed along the circumference, and the turntable has through holes that match the fixing holes. Bolts are installed in the fixing holes and through holes.

[0008] Furthermore, the clamping mechanism includes a first slider and a second slider that are slidably connected to the slide rail. A first clamping block and a second clamping block are fixedly connected to the top of the first slider and the second slider, respectively. The opposing surfaces of the first clamping block and the second clamping block are provided with arc surfaces. The output ends of the first electric cylinder and the second electric cylinder are fixedly connected to the ends of the first clamping block and the second clamping block away from the arc surfaces, respectively. The cylinder bodies of the first electric cylinder and the second electric cylinder are mounted on the slide rail.

[0009] Furthermore, there are eight fixing holes and eight through holes.

[0010] Furthermore, the arc surface is fitted with an anti-slip layer.

[0011] Furthermore, the high-frequency motor, stroke motor, stroke electric cylinder, and moving electric cylinder are all electrically connected to a controller.

[0012] Furthermore, handles are installed on both sides of the base.

[0013] Furthermore, the width of the placement platform is matched with the length of the lead screw.

[0014] Beneficial effects

[0015] This invention achieves rapid positioning of the shaped tube between the first and second clamping blocks using a moving electric cylinder; the first and second electric cylinders achieve precise positioning of the shaped tube; the turntable and fixed plate are detachably connected, allowing adjustment of the horizontal angle of the shaped tube, facilitating welding between tubes at different angles; the stroke motor, through a reducer, coupling, and lead screw, adjusts the horizontal position of the welding head; the stroke electric cylinder adjusts the vertical position of the welding head, enabling welding of the shaped tube at different positions on the placement table, making it convenient to use. The coordination between the cleaning electric cylinder and the cleaning motor determines the position of the grinding wheel; the grinding wheel grinds away the weld slag after welding, resulting in high efficiency. Attached Figure Description

[0016] Figure 1 This is an isometric drawing of a welding device for irregularly shaped steel pipes.

[0017] Figure 2 Diagram showing the turntable connection relationship of the welding device for irregularly shaped steel pipes;

[0018] Figure 3 Axonometric drawing of the fixing disc of the welding device for irregularly shaped steel pipes;

[0019] Figure 4 Diagram showing the connection relationship of the cleaning electric cylinder in the welding device for irregularly shaped steel pipes;

[0020] In the diagram: 1-Base, 2-Fixed frame, 3-Lead screw, 4-Coupling, 5-Stroke motor, 6-Reducer, 7-Support frame, 8-Placement platform, 9-Mounting seat, 10-Moving electric cylinder, 11-Guide rail, 12-Moving plate, 13-Lead screw nut, 14-High frequency motor, 15-Motor base, 16-Slide groove, 17-Bearing seat, 18-Stroke electric cylinder, 19-Welding head, 191-Welding seat, 20-Fixed block, 21-First clamping block, 22-Slide rail, 23-Second clamping block Clamping block, 24-turntable, 25-fixed plate, 26-controller, 27-moving block, 28-guide groove, 29-handle, 30-first electric cylinder, 31-first fixed plate, 32-moving groove, 33-first slider, 34-arc surface, 35-second electric cylinder, 36-second fixed plate, 37-second slider, 38-through hole, 39-fixed hole, 40-rotating hole, 41-rotating shaft, 42-cleaning electric cylinder, 43-cleaning motor, 44-grinding wheel, 45-cleaning guide rail. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0022] See Figure 1 , 23, 4. The purpose of this invention is to provide a welding device for irregularly shaped steel pipes, including a base 1. A symmetrical support frame 7 is bolted to the middle of the top of the base 1. A fixed frame 2 is bolted to the top of the support frame 7. A motor base 15 is bolted to one side of the fixed frame 2. A high-frequency motor 14 is bolted to the middle of the motor base 15. A movable plate 12 is provided on the side of the fixed frame 2 away from the high-frequency motor 14. A sliding groove 16 is provided at the end of the fixed frame 2 near the movable plate 12. The movable plate 12 is positioned and sized to correspond with the sliding groove 16. The travel block is matched with the size; a lead screw nut 13 is installed in the middle of the moving plate 12, and the lead screw nut 13 is threadedly connected to the lead screw 3. The length of the lead screw 3 matches the length of the slide groove 16; one end of the lead screw 3 is connected to the coupling 4 through a sleeve, and the end of the coupling 4 away from the lead screw 3 is connected to the output end of the reducer 6. The input end of the reducer 6 is connected to the shaft of the travel motor 5, and the travel motor 5 is bolted to the fixed frame 2; the end of the lead screw 3 away from the travel motor 5 is connected to the bearing seat 17 through a bearing, and the bearing seat 17 is bolted to the fixed frame 2.The end of the movable plate 12 furthest from the fixed frame 2 is bolted to a stroke electric cylinder 18. The output end of the stroke electric cylinder 18 is bolted to a welding head 19. The welding head 19 is slidably connected to a welding seat 191 via a third slider. The welding seat 191 is bolted to the fixed frame 2. The welding head 191 is electrically connected to a high-frequency motor 14. A placement platform 8 is provided at the bottom of the welding head 19. A fixing block 20 is welded to the bottom of the placement platform 8. The fixing block 20 is a cuboid, and its bottom is bolted to the base 1. The base 1 is located near the mounting base 9. Each side is provided with a guide rail 11, and a guide groove 28 is provided in the middle of the guide rail 11. A moving block 27 is slidably connected in the guide groove 28. The output end of a moving electric cylinder 10 is bolted to one side of the moving block 27. The cylinder body of the moving electric cylinder 10 is bolted to a mounting base 9. The bottom of the mounting base 9 is bolted to one end of the guide rail 11. A fixed plate 25 is bolted to the top of the moving block 27. The fixed plate 25 is provided with eight fixing holes 39 evenly distributed around the circumference. A rotating hole 40 is provided in the middle of the fixed plate 25. A rotating shaft 41 is connected in the rotating hole 40. The rotating shaft 41 and the rotating hole 40 are in transition fit; a turntable 24 is provided on the top of the fixed disk 25, and a hole matching the size and position of the rotating hole 40 is provided on the bottom of the turntable 24, and the hole and the rotating shaft 41 are in clearance fit; eight through holes 38 are distributed around the circumference of the turntable 24, and the size and position of the through holes 38 match the fixed holes 39, and bolts are installed in the through holes 38 and the fixed holes 39; a slide rail 22 is welded to the top of the turntable 24, and a moving groove 32 is provided in the middle of the slide rail 22, and a first slider 33 and a second slider 37 are slidably connected in the moving groove 32. 3. The top of the first clamping block 21 and the second clamping block 23 are respectively welded to the top of the second slider 37. The opposite surfaces of the first clamping block 21 and the second clamping block 23 are provided with arc surfaces 34. The ends of the first clamping block 21 and the second clamping block 23 away from the arc surfaces 34 are respectively connected to the output ends of the first electric cylinder 30 and the second electric cylinder 35 by bolts. The cylinder bodies of the first electric cylinder 30 and the second electric cylinder 35 are respectively connected to the first fixing plate 31 and the second fixing plate 36 by bolts. The first fixing plate 31 and the second fixing plate 36 are connected to the ends of the slide rail 22 by bolts.

[0023] A cleaning electric cylinder 42 is bolted to one side of the placement platform 8. A cleaning motor 43 is bolted to the output end of the cleaning electric cylinder 42. A grinding wheel 44 is keyed to the output end of the cleaning motor 43. A cleaning guide rail 45 is slidably connected to the bottom of the cleaning motor 43 via a third slider.

[0024] Preferably, a controller 26 is installed at one end of the base 1 near the guide rail 11. The controller 26 is electrically connected to the movable electric cylinder 10, the first electric cylinder 30, the second electric cylinder 35, the stroke electric cylinder 18, the stroke motor 5, the high-frequency motor 14, and the reducer 6.

[0025] Preferably, handles 29 are installed on both sides of the base 1.

[0026] Preferably, the arc surface 34 is covered with an anti-slip layer, which is a rubber layer, to facilitate clamping.

[0027] In summary, in actual use, the two shaped tubes to be welded are placed between the first clamping block 21 and the second clamping block 23 at both ends of the base 1. The controller 26 starts the moving electric cylinder 10, and the output end of the moving electric cylinder 10 quickly adjusts the position of the fixed plate 25 through the moving block 27, so that the two shaped tubes quickly approach each other. The first electric cylinder 30 and the second electric cylinder 35 are then started, so that the first clamping block 21 and the second clamping block 23 clamp the shaped tubes. Then the turntable 24 is rotated, and the turntable 24 is rotatably connected to the fixed plate 25, so that the welding surfaces of the two shaped tubes remain flush, and the through hole 38 and the fixing hole 39 are installed. Bolts are used to fix the position of the irregular tube. The stroke motor 5 is activated, which drives the moving plate 12 via the lead screw 3 to position the welding head 19 horizontally relative to the welding surface. The stroke electric cylinder 18 is activated, which moves the welding head 19 vertically. The welding head 19 slides vertically on one side of the welding seat 191 via a third slider, thus positioning it vertically on the welding surface. Then, the high-frequency motor 14 is activated, melting the brazing filler metal on the welding surface to perform welding. After welding, the high-frequency motor 14 is turned off, stopping high-frequency heating, and the welding head 19 returns to its initial position. Simultaneously with welding, the cleaning electric cylinder 42 is activated, causing the cleaning motor 43 to reach the welded position. The cleaning motor 43 then drives the grinding wheel 44 to grind the welded area, making it smooth.

[0028] Therefore, the device can quickly position the shaped tube between the first clamping block 21 and the second clamping block 23 via the moving electric cylinder 10; the first electric cylinder 30 and the second electric cylinder 35 can accurately position the shaped tube; the turntable 24 and the fixed plate 25 are detachably connected, thereby adjusting the angle of the shaped tube in the horizontal direction, which is convenient for welding between shaped tubes at different angles; the stroke motor 5, through the reducer 6, coupling 4 and lead screw 3, adjusts the horizontal position of the welding head 19; the stroke electric cylinder 18 adjusts the vertical position of the welding head 19, realizing the welding of the shaped tube at different positions on the placement table 8. The cooperation between the cleaning electric cylinder 42 and the cleaning motor 43 determines the position of the grinding wheel; the grinding wheel 44 grinds the weld slag after welding, which is highly efficient.

[0029] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A welding device for irregularly shaped steel pipes, characterized in that: The system includes a base (1), on both sides of the top of the base (1) a support frame (7), on the top of the support frame (7) a fixed frame (2), on one side of the fixed frame (2) a high-frequency motor (14), on the side of the fixed frame (2) away from the high-frequency motor (14) a movable plate (12), on the end of the movable plate (12) away from the fixed frame (2) a stroke electric cylinder (18) fixedly connected, on the output end of the stroke electric cylinder (18) a welding head (19) is installed, on the bottom of the welding head (19) a placement platform (8) is provided, on the top of the base (1), on one end of the placement platform (8) a cleaning electric cylinder (42) is installed, and on the output end of the cleaning electric cylinder (42) a cleaning... The cleaning motor (43) is slidably connected to the placement platform (8). The output end of the cleaning motor (43) is equipped with a grinding wheel (44). The top of the base (1) is fixedly connected to both sides of the placement platform (8). The guide rail (11) is slidably connected to the guide rail (11). The output end of the moving electric cylinder (10) is fixedly connected to one side of the moving block (27). The cylinder body of the moving electric cylinder (10) is installed at one end of the guide rail (11). The top of the moving block (27) is fixedly connected to the fixed plate (25). The top of the fixed plate (25) is detachably connected to the turntable (24). The top of the turntable (24) is fixedly connected to the slide rail (22). The slide rail (22) is equipped with a clamping mechanism.

2. The welding apparatus for shaped steel pipes according to claim 1, characterized in that, The fixed frame (2) has a sliding groove (16) on the side away from the high-frequency motor (14). The moving plate (12) is slidably connected to the sliding groove (16). The moving plate (12) is equipped with a lead screw nut (13). The lead screw nut (13) is threadedly connected to a lead screw (3). One end of the lead screw (3) is equipped with the output end of the stroke motor (5), and the other end is installed on the fixed frame (2) through a bearing seat (17). The stroke motor (5) is installed on the fixed frame (2).

3. The welding apparatus for shaped steel pipes according to claim 1, characterized in that, The bottom of the placement platform (8) is fixedly connected to a fixing block (20), and the bottom of the fixing block (20) is fixedly connected to the base (1).

4. The welding apparatus for shaped steel pipes according to claim 1, characterized in that, The fixed disk (25) has a rotating hole (40) in the middle. The rotating hole (40) is detachably connected to a rotating shaft (41). The end of the rotating shaft (41) away from the rotating hole (40) is rotatably connected to the turntable (24). The fixed disk (25) has fixed holes (39) evenly distributed along the circumference. The turntable (24) has through holes (38) that match the fixed holes (39). Bolts are installed in the fixed holes (39) and through holes (38).

5. The welding apparatus for shaped steel pipes according to claim 1, characterized in that, The clamping mechanism includes a first slider (33) and a second slider (37) that are slidably connected to the slide rail (22). The top of the first slider (33) and the second slider (37) are respectively fixedly connected to a first clamping block (21) and a second clamping block (23). The opposite surfaces of the first clamping block (21) and the second clamping block (23) are provided with arc surfaces (34). The ends of the first clamping block (21) and the second clamping block (23) away from the arc surfaces (34) are respectively fixedly connected to the output ends of the first electric cylinder (30) and the second electric cylinder (35). The cylinder bodies of the first electric cylinder (30) and the second electric cylinder (35) are mounted on the slide rail (22).

6. The welding apparatus for irregularly shaped steel pipes according to claim 4, characterized in that, The fixed hole (39) and the through hole (38) are each provided with eight holes.

7. The welding apparatus for shaped steel pipes according to claim 5, characterized in that, The arc surface (34) is fitted with an anti-slip layer.

8. The welding apparatus for irregularly shaped steel pipes according to claim 2, characterized in that, The high-frequency motor (14), stroke motor (5), stroke electric cylinder (18), and moving electric cylinder (10) are all electrically connected to a controller (26).

9. The welding apparatus for shaped steel pipes according to claim 1, characterized in that, Handles (29) are installed on both sides of the base (1).

10. The welding apparatus for shaped steel pipes according to claim 1, characterized in that, The width of the placement platform (8) matches the length of the lead screw (3).

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