Automatic turnover welding device

Abstract

The utility model relates to the technical field of welding, in particular to an automatic turnover welding device which comprises a base, an installation frame and a welding machine body, the n-shaped installation frame is connected to the base, the welding machine body is connected to the installation frame, and a turnover mechanism capable of driving a workpiece to be welded to rotate is arranged on the installation frame. The overturning mechanism comprises an overturning assembly and a clamping assembly, the overturning assembly is arranged above the base and can drive a workpiece to be welded to conduct 360-degree angle change, and the clamping assembly is arranged on the overturning assembly and can conduct positioning and clamping on the workpiece to be welded. According to the multi-angle overturning mechanism, a workpiece can be overturned at multiple angles so that the welding machine body can conveniently conduct welding operation on the workpiece, and the limiting rods between the clamping plates are inserted into the through holes in the rotating disc to further limit the rotating disc so that the situation that the rotating disc shakes and deviates when clamping a heavy object can be prevented; and the moving plate in the clamping assembly can be freely detached from the fixed frame, so that the installation of the workpiece is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to an automatic flip welding device. Background Art

[0002] Welding, also known as fusion, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure. There are many sources of energy for modern welding, including gas flame, arc, laser, electron beam, friction and ultrasound.

[0003] After searching, the Chinese patent with publication number CN213916896U discloses a workpiece flipping device for an automatic welding machine, including: a first base, a second base and a U-shaped frame; the U-shaped frame is slidably arranged on the first base and the second base, and the two side frames of the U-shaped frame are vertically fixed with a connecting frame at a position between the first base and the second base, and the top of the connecting frame is rotatably connected with a connecting shaft, and the connecting shaft is located at one end of the inner side of the connecting frame and fixed with a workpiece fixing fixture. In the utility model, the workpiece is fixed by the workpiece fixing fixture, and then when in use, the U-shaped frame can be driven to slide on the first base and the second base by a driving mechanism, and the adjustment rack fixed on the first base and the second base cooperates with the adjustment gear disk to drive the connecting shaft to rotate, and the workpiece fixing fixture is driven to rotate and flip through the connecting shaft, so as to realize automatic flipping adjustment of the workpiece, and manual operation of the staff is not required, thereby improving work efficiency and reducing labor intensity.

[0004] However, in the above technical solution, the U-shaped frame and the rack on the U-shaped frame are driven to move by a hydraulic telescopic rod, and the fixed clamp is rotated and flipped when the rack and the gear are meshed. However, after the fixed clamp clamps the workpiece, it is still necessary to support it through a supporting frame. The supporting frame imposes a certain degree of restriction on the moving angle of the workpiece and the fixed clamp. When welding, the angles required for workpieces of different thicknesses and the welding rod are different. The inability to change the angle of the workpiece makes the welding conditions worse and increases the difficulty of welding. Utility Model Content

[0005] The utility model aims to provide an automatic flip welding device in view of the problems existing in the background technology.

[0006] The technical solution of the utility model is: an automatic flip welding device, including a base, a mounting frame and a welding machine body, the base is connected to an n-shaped mounting frame, the mounting frame is connected to the welding machine body, and the mounting frame is provided with a flip mechanism capable of driving the workpiece to be welded to rotate;

[0007] The flipping mechanism includes a flipping assembly and a clamping assembly. The flipping assembly is arranged above the base and can drive the workpiece to be welded to change its angle by 360°. The clamping assembly is arranged on the flipping assembly and can position and clamp the workpiece to be welded.

[0008] The flip assembly includes a support plate, a stepper motor, an output shaft, a rotating disk, a fixed shaft, a fixed seat and a limit assembly capable of limiting the rotation of the rotating disk. The symmetrically arranged support plates are connected to both sides of the mounting frame. The support plates on either side of the mounting frame are connected to the motor. The output end of the motor is connected to the output shaft in a transmission connection. The rotating disks are symmetrically arranged between the mounting frames. The output shaft is connected to any one of the rotating disks. The other rotating disk is connected to the fixed shaft. The fixed shaft is connected to the fixed seat connected to the support plate in a rotational connection. The limit assembly is provided below the rotating disk.

[0009] The limiting assembly includes a fixed plate, a motor, a coaxial bidirectional screw, a guide rod and a clamping plate. The clamping plate pair is arranged on both sides of the rotating plate. The clamping plate is threadedly connected to the coaxial bidirectional screw through a threaded hole. The coaxial bidirectional screw is rotatably connected to the fixed plate. The symmetrically arranged fixed plates are connected to the base. Either end of the coaxial bidirectional screw passes through the fixed plate and is connected to the motor connected to the fixed plate. A guide rod passing through the clamping plate is connected between the fixed plates.

[0010] Preferably, the clamping plates are connected to limiting rods on opposite sides, the limiting rods are slidably connected to the through holes on the rotating disk, any one of the limiting rods is provided with a groove, and the other limiting rod is provided with a protrusion that fits the shape of the groove.

[0011] Preferably, the clamping assembly includes a fixed frame, a movable plate, a dovetail groove, a dovetail block and an extrusion assembly capable of pushing the workpiece close to the fixed frame. The U-shaped fixed frame is connected to the rotating disk. The fixed frame is provided with symmetrically arranged dovetail grooves. The dovetail grooves are slidably connected to the dovetail blocks connected to the two ends of the movable plate. The dovetail blocks are used to set the extrusion assembly.

[0012] Preferably, the extrusion assembly includes a threaded rod, an adjustment handle and a pressure plate, the threaded rod is threadedly connected to a threaded hole opened on the movable plate, one end of the threaded rod passes through the threaded hole and is rotatably connected to the pressure plate, and the other end of the threaded rod is connected to the adjustment handle.

[0013] Preferably, a protective pad is connected to one side of the pressure plate close to the fixing frame.

[0014] Compared with the prior art, the above technical solution of the utility model has the following beneficial technical effects:

[0015] The utility model can flip the workpiece at multiple angles to facilitate the welding operation of the welding machine body. After the stepper motor drives the output shaft and the rotating disk to rotate to adjust the workpiece, the self-locking function of the stepper motor itself can limit the rotation of the rotating disk. The clamping plates in the limit assembly move toward each other, and the limit rods between the clamping plates are inserted into the through holes on the rotating disk to further limit the rotating disk to prevent it from shaking and deviating when clamping heavy objects. The movable plate in the clamping assembly can be freely disassembled from the fixed frame to facilitate the installation of the workpiece. The threaded rod drives the pressure plate to move to fix the workpiece while limiting the movement of the movable plate to prevent it from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of ;

[0018] Figure 3 for Figure 2 A magnified view of the structure at A;

[0019] Figure 4 for Figure 2 A magnified view of the structure at B;

[0020] Figure 5 It is a schematic diagram of the pressure plate structure.

[0021] Figure numerals: 1. base; 2. mounting frame; 3. welding machine body; 4. support plate; 5. stepping motor; 6. output shaft; 7. rotating disk; 8. fixed shaft; 9. fixed seat; 10. fixed plate; 11. motor; 12. coaxial bidirectional screw; 13. guide rod; 14. clamping plate; 15. limit rod; 16. groove; 17. protrusion; 18. fixed frame; 19. movable plate; 20. dovetail groove; 21. dovetail block; 22. threaded rod; 23. adjusting handle; 24. pressure plate; 25. protective pad. DETAILED DESCRIPTION

[0022] Embodiment 1

[0023] like Figure 1-Figure 5 As shown, the utility model proposes an automatic flip welding device, comprising a base 1, a mounting frame 2 and a welding machine body 3, the base 1 is connected to an n-shaped mounting frame 2, the mounting frame 2 is connected to the welding machine body 3, and the mounting frame 2 is provided with a flip mechanism capable of driving the workpiece to be welded to rotate;

[0024] The flipping mechanism includes a flipping assembly and a clamping assembly. The flipping assembly is arranged above the base 1 and can drive the workpiece to be welded to change its angle by 360°. The clamping assembly is arranged on the flipping assembly and can position and clamp the workpiece to be welded.

[0025] The utility model can flip the workpiece at multiple angles to facilitate the welding operation of the welding machine body 3. After the stepper motor 5 drives the output shaft 6 and the rotating disk 7 to rotate and adjust the workpiece, the self-locking function of the stepper motor 5 itself can limit the rotation of the rotating disk 7. The clamping plates 14 in the limit assembly move toward each other, and the limit rods 15 between the clamping plates 14 are inserted into the through holes on the rotating disk 7 to further limit the rotating disk 7 to prevent it from shaking and deviating when clamping heavy objects. The movable plate 19 in the clamping assembly can be freely disassembled from the fixed frame 18 to facilitate the installation of the workpiece. The threaded rod 22 drives the pressure plate 24 to move to fix the workpiece while limiting the movement of the movable plate 19 to prevent it from falling off.

[0026] The flip assembly includes a support plate 4, a stepper motor 5, an output shaft 6, a rotating disk 7, a fixed shaft 8, a fixed seat 9 and a limit assembly capable of limiting the rotation of the rotating disk 7. The symmetrically arranged support plates 4 are connected to both sides of the mounting frame 2. The support plates 4 on either side of the mounting frame 2 are connected to a motor 11. The output end of the motor 11 is connected to the output shaft 6 in a transmission connection. A symmetrically arranged rotating disk 7 is provided between the mounting frames 2. The output shaft 6 is connected to any one of the rotating disks 7. The other rotating disk 7 is connected to the fixed shaft 8. The fixed shaft 8 is connected to the fixed seat 9 connected to the support plate 4 in a rotational connection. The limit assembly is provided below the rotating disk 7. After the stepper motor 5 is started, the output end of the stepper motor 5 rotates to drive the output shaft 6 to rotate. The rotating disk 7 on the output shaft 6 drives the workpiece to rotate. The other end of the workpiece is connected to another rotating disk 7 on the fixed seat 9 to drive the other rotating disk 7 to rotate. After the stepper motor 5 drives the rotating disk 7 to rotate a certain angle, the limiting assembly can limit the shaking of the rotating disk 7 to prevent the workpiece from being too heavy and causing an angle deviation that affects the welding quality.

[0027] The limit assembly includes a fixed plate 10, a motor 11, a coaxial bidirectional screw 12, a guide rod 13 and a clamping plate 14. The clamping plates 14 are arranged on both sides of the rotating plate. The clamping plates 14 are threadedly connected to the coaxial bidirectional screw 12 through threaded holes. The coaxial bidirectional screw 12 is rotatably connected to the fixed plate 10. The symmetrically arranged fixed plates 10 are connected to the base 1. Either end of the coaxial bidirectional screw 12 passes through the fixed plate 10 and is connected to the motor 11 connected to the fixed plate 10. A guide rod 13 passing through the clamping plate 14 is connected between the fixed plates 10. After the motor 11 is started, its output end drives the coaxial bidirectional screw 12 to rotate, and the clamping plates 14 on the coaxial bidirectional screw 12 move toward each other. The clamping plates 14 contact the two side walls of the rotating disk 7, and the rotation of the rotating disk 7 is limited by the mutual contact between the two. The guide rod 13 can limit the movement of the clamping plate 14 to prevent it from rotating with the coaxial bidirectional screw 12.

[0028] The clamping plate 14 is connected to the limiting rod 15 on the opposite side, and the limiting rod 15 is slidably connected with the through hole on the rotating disk 7. A groove 16 is provided on any limiting rod 15, and a protrusion 17 that matches the shape of the groove 16 is provided on the other limiting rod 15. When the clamping plate 14 contacts the rotating disk 7, the limiting rods 15 on the opposite side are inserted into the through hole on the rotating disk 7. At this time, the protrusions 17 on the two limiting rods 15 are inserted into the groove 16 to enhance the strength between the limiting rods 15.

[0029] Embodiment 2

[0030] like Figure 1 , Figure 4 , Figure 5 As shown, the utility model proposes an automatic flip welding device. Compared with the first embodiment, in this embodiment, the clamping assembly includes a fixed frame 18, a movable plate 19, a dovetail groove 20, a dovetail block 21 and an extrusion assembly capable of pushing the workpiece close to the fixed frame 18. The U-shaped fixed frame 18 is connected to the rotating disk 7. The fixed frame 18 is provided with symmetrically arranged dovetail grooves 20. The dovetail grooves 20 are slidably connected to the dovetail blocks 21 connected to the two ends of the movable plate 19. The dovetail blocks 21 are used to set the extrusion assembly. When installing the workpiece, the movable plate 19 is moved out of the dovetail groove 20 by sliding between the dovetail blocks 21 at both ends and the dovetail groove 20. When the workpiece is disassembled after welding, the extrusion assembly is first loosened. After the extrusion assembly is loosened, the fixed frame 18 loses the restriction on the movable plate 19. At this time, the movable plate 19 and the extrusion assembly can be removed to facilitate the workpiece.

[0031] The extrusion assembly includes a threaded rod 22, an adjustment handle 23 and a pressing plate 24. The threaded rod 22 is threadedly connected to a threaded hole provided on the movable plate 19. One end of the threaded rod 22 passes through the threaded hole and is rotatably connected to the pressing plate 24. The other end of the threaded rod 22 is connected to the adjustment handle 23. When the adjustment handle 23 is rotated, the threaded rod 22 is driven to rotate. The rotation of the threaded rod 22 in the threaded hole drives the pressing plate 24 to move along the axis of the threaded rod 22. The pressing plate 24 is close to the fixed frame 18 to clamp and limit the workpiece through the distance between the two.

[0032] A protective pad 25 is connected to the side of the pressing plate 24 close to the fixed frame 18. The protective pad 25 is made of metal copper, which is softer than steel. It can ensure stability and accuracy when clamping and can also avoid excessive clamping force to damage the workpiece.

[0033] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An automatic flip welding device, characterized in that: The invention comprises a base (1), a mounting frame (2) and a welding machine body (3); the base (1) is connected to an n-shaped mounting frame (2); the mounting frame (2) is connected to the welding machine body (3); and the mounting frame (2) is provided with a turning mechanism capable of driving a workpiece to be welded to rotate; The turning mechanism comprises a turning assembly and a clamping assembly, wherein the turning assembly is arranged above the base (1) and can drive the workpiece to be welded to change its angle by 360 degrees, and the clamping assembly is arranged on the turning assembly and can position and clamp the workpiece to be welded; The flip assembly comprises a support plate (4), a stepper motor (5), an output shaft (6), a rotating disk (7), a fixed shaft (8), a fixed seat (9) and a limit assembly capable of limiting the rotation of the rotating disk (7); the support plates (4) are symmetrically arranged and connected to both sides of the mounting frame (2); a motor (11) is connected to the support plate (4) on either side of the mounting frame (2); the output end of the motor (11) is transmission-connected to the output shaft (6); symmetrically arranged rotating disks (7) are arranged between the mounting frames (2); the output shaft (6) is connected to any one of the rotating disks (7); the other rotating disk (7) is connected to the fixed shaft (8); the fixed shaft (8) is rotationally connected to the fixed seat (9) connected to the support plate (4); and a limit assembly is arranged below the rotating disk (7); The limit assembly comprises a fixed plate (10), a motor (11), a coaxial bidirectional screw (12), a guide rod (13) and a clamping plate (14); the clamping plates (14) are arranged on both sides of the rotating plate; the clamping plates (14) are threadedly connected to the coaxial bidirectional screw (12) through threaded holes; the coaxial bidirectional screw (12) is rotatably connected to the fixed plate (10); the symmetrically arranged fixed plates (10) are connected to the base (1); any end of the coaxial bidirectional screw (12) passes through the fixed plate (10) and is connected to the motor (11) connected to the fixed plate (10); and a guide rod (13) passing through the clamping plate (14) is connected between the fixed plates (10).

2. The automatic flip welding device according to claim 1, characterized in that: The clamping plates (14) are connected to the opposite sides with limiting rods (15), the limiting rods (15) are slidably connected to the through holes on the rotating disk (7), any one of the limiting rods (15) is provided with a groove (16), and the other limiting rod (15) is provided with a convex block (17) that matches the shape of the groove (16).

3. The automatic flip welding device according to claim 2, characterized in that: The clamping assembly comprises a fixed frame (18), a movable plate (19), a dovetail groove (20), a dovetail block (21) and an extrusion assembly capable of pushing a workpiece to be close to the fixed frame (18). The U-shaped fixed frame (18) is connected to the rotating disk (7). The fixed frame (18) is provided with symmetrically arranged dovetail grooves (20). The dovetail grooves (20) are slidably connected to dovetail blocks (21) connected to both ends of the movable plate (19). The dovetail block (21) is used to set the extrusion assembly.

4. The automatic flip welding device according to claim 3, characterized in that: The extrusion assembly comprises a threaded rod (22), an adjusting handle (23) and a pressing plate (24); the threaded rod (22) is threadedly connected to a threaded hole provided on the movable plate (19); one end of the threaded rod (22) passes through the threaded hole and is rotatably connected to the pressing plate (24); and the other end of the threaded rod (22) is connected to the adjusting handle (23).

5. The automatic flip welding device according to claim 4, characterized in that: A protective pad (25) is connected to one side of the pressing plate (24) close to the fixing frame (18).

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