Rotary pipe fitting welding machine

Abstract

The invention relates to a rotary pipe fitting welding machine, and belongs to the technical field of welding equipment, the rotary pipe fitting welding machine comprises a welding table, a fixing rod is slidably connected to the welding table, a laser welding head is connected to the fixing rod, a supporting rod is rotatably connected to the upper surface of the welding table, and a motor is fixedly arranged on the lower surface of the welding table; an output shaft of the motor is fixedly connected with the lower end of the supporting rod, a supporting plate is fixedly arranged at the upper end of the supporting rod, a plurality of frames are arranged on the upper surface of the supporting plate and are sequentially arranged along the side of the supporting plate, rotating plates are rotationally connected to the inner walls of the two opposite sides of each frame and are parallel to each other, and fixing assemblies used for fixing pipe fittings are arranged on the rotating plates. A lifting assembly used for lifting the frame upwards is arranged below the frame, a rotating assembly used for driving the rotating plate to rotate is arranged on the frame, and the pipe fitting welding device has the effect of improving the pipe fitting welding work efficiency.

Description

Technical Field

[0001] This application relates to the technical field of welding equipment, and in particular, to a rotary pipe fitting welding machine. Background Art

[0002] During the production process of pipe fittings, a welding machine is required for welding, and this step is crucial for ensuring firm connection and good sealing of the pipe fittings.

[0003] The existing welding machine for pipe fittings is equipped with a welding table, a laser welding head and its support structure, and a fixing device for stabilizing the pipe fittings is installed on the welding table. In the welding process, the staff first place the pipe fittings to be welded on the welding table and clamp them using the fixing device. After fixing, the laser welding head is immediately started for welding operations. After welding, the staff need to manually operate the fixing device to release the pipe fittings and remove them for the next round of welding.

[0004] In view of the above related technologies, after completing the welding of the pipe fittings, the staff need to manually remove the pipe fittings and then weld the next pipe fitting. This process is time-consuming and laborious, thus having the defect of low welding efficiency of the pipe fittings. Summary of the Invention

[0005] In order to improve the working efficiency of pipe fitting welding, this application provides a rotary pipe fitting welding machine.

[0006] The rotary pipe fitting welding machine provided by this application adopts the following technical solutions: A rotary pipe fitting welding machine includes a welding table, a fixing rod is slidably connected to the welding table, a laser welding head is connected to the fixing rod, a support rod is rotatably connected to the upper surface of the welding table, a motor is fixedly provided on the lower surface of the welding table, the output shaft of the motor is fixedly connected to the lower end of the support rod, a support plate is fixedly provided at the upper end of the support rod, a plurality of frames are arranged on the upper surface of the support plate, the plurality of frames are arranged in sequence along the side of the support plate, rotating plates are rotatably connected to the inner walls of the opposite sides of the frames, the rotating plates are parallel to each other, a fixing component for fixing the pipe fittings is arranged on the rotating plates, a lifting component for lifting the frames upward is arranged below the frames, and a rotating component for driving the rotating plates to rotate is arranged on the frames.

[0007] By adopting the above technical solution, after placing the pipe fitting inside the frame, start the motor. The motor drives the support rod to rotate, thereby driving the support plate to rotate. The support plate drives the frame and the pipe fitting to move. During this movement process, the lifting assembly synchronously lifts the frame, while the fixing assembly quickly fixes the pipe fitting and carries it upward. When the support plate moves the pipe fitting to the position of the laser welding head, the support plate pauses rotating. Subsequently, the laser welding head starts, and at the same time, the rotating assembly causes the rotating plate to rotate, driving the pipe fitting to rotate to complete the laser welding operation. After welding is completed, the support plate continues to rotate, and the next pipe fitting to be welded is immediately moved to the laser welding head for welding. Once the welded pipe fitting is moved to a position far from the laser welding head, the frame descends, and the fixing assembly releases the pipe fitting, facilitating the staff to take away the welded pipe fitting and replace it with a new pipe fitting to be welded. This process does not require manual handling of the pipe fitting to the welding point or removal of the finished product, saving time and thus improving the working efficiency of pipe fitting welding.

[0008] Optionally, the fixing assembly includes a moving plate and a first spring. There are two moving plates and two first springs, which are arranged in one-to-one correspondence. The two moving plates are respectively arranged on the opposite sides of the two rotating plates. The moving plates are parallel to each other. The first spring is fixedly arranged between the moving plate and the rotating plate. A first telescopic rod is fixedly arranged between the moving plate and the rotating plate. The first telescopic rod is composed of multiple rod bodies sleeved together, and the rod bodies are slidably connected. The first spring is sleeved outside the first telescopic rod.

[0009] By adopting the above technical solution, during the downward movement of the frame, the frame drives the rotating plate to move. The rotating plate drives the moving plate to move through the first telescopic rod. During the movement of the moving plate, the moving plate gradually moves towards the rotating plate direction, and the first spring is compressed. The clamping and fixing of the pipe fitting by the two moving plates are released. The staff removes the welded pipe fitting and places the pipe fitting to be welded. Then the support plate continues to drive the frame to move, and at the same time, the lifting assembly drives the frame to move upward. The first spring releases its elastic force, pushing the moving plate to move away from the rotating direction, and the moving plate completes the clamping and fixing of the pipe fitting. Then the moving plate clamps the pipe fitting and moves it up to the set height, so that the fixing assembly realizes the fixing of the pipe fitting.

[0010] Optionally, a first guiding block for guiding the movement of the moving plate is arranged on the frame. The first guiding block is fixedly connected to the support plate, and the opposite sides of the first guiding block are arranged as inclined surfaces.

[0011] By adopting the above technical solution, during the downward movement of the frame, the frame drives the moving plate to move. During the downward movement of the moving plate, the moving plate first contacts the inclined surface of the first guiding block, and under the guiding action of the inclined surface, the moving plate moves towards the rotating plate direction, and the first spring is compressed. The moving plate releases the clamping and fixing of the pipe fitting. After the frame abuts against the supporting plate, the pipe fitting is taken away from the first guiding block, and the pipe fitting to be welded is placed on the first guiding block. The setting of the first guiding block enables the moving plate to move towards the rotating plate direction.

[0012] Optionally, support rods are fixedly provided at opposite ends of the frame. The bottom ends of the support rods penetrate through the supporting plate, and the support rods are slidably connected to the supporting plate. The lifting component includes a support plate and a support rod. The support plate is arranged below the support rods, and the bottom ends of the two support rods are fixedly connected to the support plate. One end of the support rod is fixedly connected to the side of the support plate facing the welding table. An annular plate is fixedly provided on the welding table. An avoidance groove is formed through the annular plate at the end far from the fixed rod. The opposite side walls of the avoidance groove are arranged as inclined surfaces, and the bottom end of the support rod is located on the annular plate.

[0013] By adopting the above technical solution, during the rotation of the supporting plate, the supporting plate drives the support rods to move, the support rods drive the support plate to move, and the support plate drives the support rod to move. During the process of the support rod gradually moving into the avoidance groove, affected by gravity, the support rod moves downward, driving the support plate, the support rods, and the frame to move downward together. After placing the pipe fitting to be welded, the rotating plate drives the support rods to move again, the support rods drive the support plate to move, the support plate drives the support rod to move, and under the guiding action of the side wall of the avoidance groove, the support rod gradually moves upward. The support rod drives the support plate to move, the support plate drives the support rods to move, and the support rods drive the frame to move upward. After the frame moves to the set height, the support rod disengages from the inclined surface of the avoidance groove and moves along the annular plate.

[0014] Optionally, a roller is connected to the bottom end of the support rod.

[0015] By adopting the above technical solution, during the movement of the support rod on the annular plate, the roller abuts against the annular plate and rotates. The setting of the roller makes it difficult for the support rod to generate friction with the annular plate, and the support rod is not easily damaged.

[0016] Optionally, two second springs are fixedly provided between the support plate and the supporting plate. The second springs are sleeved outside the support rods and correspond one by one.

[0017] By adopting the above technical solution, during the movement of the support rod out of the avoidance groove, as the support rod gradually rises, the support rod drives the support plate to move, and the second springs are compressed. During the movement of the support rod into the avoidance groove, the second springs release elastic force, pushing the support plate to move downward. The support plate drives the support rods to move, and the support rods drive the frame to move. Therefore, the setting of the second springs facilitates the downward movement of the frame.

[0018] Optionally, the rotating assembly includes a rotating electric cylinder and a first rotating rod. One end of the rotating electric cylinder is fixedly provided on one side of the frame. One end of the first rotating rod is fixedly connected to the rotating electric cylinder. The other end of the first rotating rod penetrates through one side wall of the frame. The first rotating rod is fixedly connected to the adjacent rotating plate. A linkage assembly for linking the two rotating plates is provided at the frame.

[0019] By adopting the above technical solution, during the movement of the frame, the frame drives the rotating electric cylinder to move. When it moves to the laser welding head, the rotating electric cylinder is started. The rotating electric cylinder drives the first rotating rod to rotate. The first rotating rod drives the rotating plate connected thereto to rotate. At the same time, the two rotating plates are synchronously rotated through the linkage assembly. The rotating plate drives the moving plate to rotate through the first telescopic rod, and the moving plate drives the pipe fitting to rotate. Thus, the rotating assembly realizes the function of driving the rotating plate to rotate.

[0020] Optionally, a first gear is fixedly provided on the first rotating rod. One side of the frame is rotatably connected with a transmission rod. The linkage assembly includes a second gear and a third gear. The second gear is fixedly connected to one end of the transmission rod. The second gear meshes with the first gear. The third gear is fixedly connected to the end of the transmission rod far from the second gear. A second rotating rod is provided on the side of the frame far from the rotating electric cylinder. The second rotating rod penetrates through one side wall of the frame. The end of the second rotating rod inside the frame is fixedly connected to the adjacent rotating plate. A fourth gear is fixedly provided on the second rotating rod. The fourth gear meshes with the third gear.

[0021] By adopting the above technical solution, during the rotation of the first rotating rod, the first rotating rod drives the first gear to rotate. The first gear drives the second gear to rotate. The second gear drives the transmission rod to rotate. The transmission rod drives the third gear to rotate. The third gear drives the fourth gear to rotate. The fourth gear drives the second rotating rod to rotate. The second rotating rod drives the rotating plate far from the rotating electric cylinder to rotate. Thus, the linkage assembly realizes the synchronous rotation of the two rotating plates.

[0022] Optionally, a chute is formed through the moving plate. Two sliders are slidably connected to the moving plate at the chute. Clamping plates are fixedly provided on the sides of the two sliders facing away from the rotating plate. Two fixing plates are fixedly provided on the side of the moving plate facing away from the clamping plates. An auxiliary plate is fixedly provided on the side of the slider facing away from the clamping plate. The auxiliary plate is located between the two fixing plates. A moving assembly for driving the two sliders to move towards or away from each other is provided at the auxiliary plate.

[0023] By adopting the above technical solution, during the movement of the frame in the direction away from the laser welding head, the moving assembly drives the auxiliary plate to move towards the adjacent fixing plate. The auxiliary plate drives the slider to move. The slider drives the clamping plate to move. The clamping of the pipe by the clamping plate is released. During the movement of the frame in the direction towards the laser welding head, the moving assembly drives the two auxiliary plates to move towards each other. The auxiliary plate drives the slider to move. The slider drives the clamping plate to move. The clamping plates on both sides clamp the pipe. Thus, the clamping plate is not likely to slide randomly between the moving plates.

[0024] Optionally, the moving assembly includes a second guiding block and a third spring. The second guiding block is fixedly arranged on the side of the rotating plate facing the moving plate. The opposite sides of the second guiding block are arranged as inclined surfaces. There are two third springs, and the two third springs are respectively fixedly arranged between the auxiliary plate and the adjacent fixed plate.

[0025] By adopting the above technical solution, during the process of the moving plate moving towards the rotating plate, the moving plate drives the auxiliary plate to move. During the movement of the auxiliary plate, the auxiliary plate first contacts the inclined surface of the second guiding block. Under the guiding action of the inclined surface of the second guiding block, the two auxiliary plates move away from each other, and the third spring is compressed, so that the clamping plate releases the clamping and fixing of the pipe. When the moving plate moves away from the rotating plate, as the auxiliary plate gradually disengages from the second guiding block, the third spring releases its elastic force and pushes the auxiliary plate to move away from the fixed plate, so that the moving assembly realizes the function of driving the auxiliary plate to move towards or away from each other.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. After the pipe fitting is placed in the frame, the motor drives the support rod to rotate, driving the frame and the pipe fitting to move. At the same time, the lifting assembly lifts the frame, and the fixing assembly fixes the pipe fitting and carries it upward. When reaching the laser welding head, the support plate pauses, the laser welding head starts, and the pipe fitting is rotated to complete the welding. After that, the support plate continues to rotate, so that the next pipe fitting to be welded moves to the laser welding head. There is no need for manual handling of the pipe fitting to the welding point or removal of the finished product, saving time, and thus improving the working efficiency of pipe fitting welding; 2. Through the arrangement of the second spring, it provides convenience for the downward movement of the support plate; 3. The pipe fitting is automatically clamped and fixed by the moving plate, without the need for the staff to manually clamp and fix the pipe fitting, saving time, and thus improving the working efficiency of pipe fitting welding. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of a rotary pipe fitting welding machine according to an embodiment of the present application; Figure 2 is a cross-sectional view showing the structure at the support plate in an embodiment of the present application; Figure 3 is a cross-sectional view showing the structure of the moving assembly in an embodiment of the present application.

[0028] In the figure, 1 is a welding table; 11 is a fixing rod; 12 is a laser welding head; 13 is a support rod; 14 is a motor; 15 is a support plate; 16 is a frame; 161 is a support rod; 162 is a transmission rod; 163 is a second rotating rod; 164 is a fourth gear; 17 is a rotating plate; 171 is a first telescopic rod; 18 is a first guiding block; 19 is an annular plate; 191 is an avoidance groove; 2 is a fixing component; 21 is a moving plate; 22 is a first spring; 3 is a lifting component; 31 is a support plate; 311 is a second spring; 32 is a support rod; 321 is a roller; 4 is a rotating component; 41 is a rotary electric cylinder; 42 is a first rotating rod; 421 is a first gear; 5 is a linkage component; 51 is a second gear; 52 is a third gear; 6 is a sliding groove; 61 is a slider; 62 is a clamping plate; 63 is a fixing plate; 64 is an auxiliary plate; 7 is a moving component; 71 is a second guiding block; 72 is a third spring. Detailed implementation manners

[0029] The following further elaborates on this application in conjunction with the Figures 1 - 3 accompanying drawings.

[0030] An embodiment of this application discloses a rotary pipe fitting welding machine.

[0031] Referring to Figure 1 , a rotary pipe fitting welding machine includes a welding table 1. A fixing rod 11 is fixedly arranged on the upper surface of the welding table 1. The length direction of the fixing rod 11 is perpendicular to the upper surface of the welding table 1. A laser welding head 12 is fixedly arranged on the fixing rod 11. A support plate 15 is arranged above the welding table 1. The support plate 15 is parallel to the upper surface of the welding table 1. An annular plate 19 is fixedly arranged on the upper surface of the welding table 1. The annular plate 19 is directly below the support plate 15.

[0032] Referring to Figure 1 and Figure 2 , a support rod 13 is arranged in the middle of the welding table 1. The length direction of the support rod 13 is perpendicular to the length direction of the support plate 15. The upper end of the support rod 13 is fixedly connected to the support plate 15. The bottom end of the support rod 13 penetrates through the top wall of the welding table 1 and is rotatably connected to the welding table 1. A motor 14 is fixedly arranged at the bottom of the welding table 1. The output shaft of the motor 14 is fixedly connected to the bottom end of the support rod 13.

[0033] Start the motor 14. The motor 14 drives the support rod 13 to rotate, and the support rod 13 drives the support plate 15 to rotate.

[0034] Referring to Figure 1 , Figure 2 and Figure 3, multiple frames 16 are arranged on the support plate 15, the frames 16 are arranged in sequence along the side of the support plate 15, support rods 161 are fixedly arranged on the lower surfaces of both ends of the frame 16, the length direction of the support rod 161 is perpendicular to the support plate 15, the bottom end of the support rod 161 penetrates through the support plate 15 and is slidably connected to the support plate 15, and a lifting assembly 3 capable of pushing the frame 16 upward is arranged below the frame 16.

[0035] The lifting assembly 3 includes a support plate 31 and a support rod 32. The support plate 31 is arranged between the support plate 15 and the welding table 1. The lower ends of the two support rods 161 connected to the frame 16 are respectively fixedly connected to both ends of the support plate 31. The support plate 31 is parallel to the support plate 15. Two second springs 311 are fixedly arranged between the support plate 31 and the support plate 15. The second springs 311 are sleeved outside the support rods 161 and correspond one by one. One end of the support rod 32 is fixedly connected to the lower surface of the support plate 31. The length direction of the support rod 32 is perpendicular to the support plate 31. A roller 321 is connected to the bottom end of the support rod 32. The roller 321 abuts against the upper surface of the annular plate 19. An avoidance groove 191 is formed at one end of the annular plate 19 away from the fixed rod 11. The opposite side walls of the avoidance groove 191 are arranged as inclined surfaces.

[0036] During the rotation of the support plate 15, the support plate 15 drives the support rod 161 to move, the support rod 161 drives the frame 16 and the support plate 31 to move, the support plate 31 drives the support rod 32 to move, the support rod 32 drives the roller 321 to roll on the annular plate 19. When the roller 321 moves to the avoidance groove 191, as the second spring 311 gradually releases elastic force, the roller 321 gradually enters the avoidance groove 191 along one inclined surface of the avoidance groove 191. The roller 321 drives the support rod 32 to move downward, the support rod 32 drives the support plate 31 to move, the support plate 31 drives the support rod 161 to move, and the support rod 161 drives the frame 16 to move downward. When the roller 321 moves to the bottom of the avoidance groove 191, the pipe fitting to be welded is placed in the frame 16. Then the support plate 15 continues to drive the frame 16 to move, the roller 321 gradually moves out of the avoidance groove 191 along the side wall of the avoidance groove 191, and at the same time the support plate 31 moves upward, the second spring 311 is compressed, and the frame 16 drives the pipe fitting to move upward, so that the pipe fitting is suspended. When the pipe fitting moves to the laser welding head 12, the laser welding head 12 welds the pipe fitting.

[0037] Reference Figure 1 , Figure 2 and Figure 3, rotating plates 17 are rotatably connected to the inner walls of two opposite sides of the frame 16. The rotating plates 17 are parallel to each other. A fixing assembly 2 for fixing pipe fittings is provided on the rotating plates 17. The fixing assembly 2 includes moving plates 21 and first springs 22. There are two moving plates 21 and two first springs 22, which correspond to each other one by one. The moving plates 21 are arranged on one side of the rotating plates 17. The moving plates 21 are parallel to the rotating plates 17. The two moving plates 21 are located between the two rotating plates 17. The first springs 22 are fixedly arranged between the moving plates 21 and the adjacent rotating plates 17. A first telescopic rod 171 is fixedly arranged between the moving plates 21 and the rotating plates 17. The first springs 22 are sleeved outside the first telescopic rods 171. First guiding blocks 18 are fixedly arranged on the upper surface of the support plate 15 at the frame 16. Both opposite sides of the first guiding blocks 18 are arranged as inclined surfaces.

[0038] During the process that the rollers 321 gradually move towards the inside of the avoidance groove 191, the frame 16 gradually moves downward. The frame 16 drives the rotating plates 17 to move downward. The rotating plates 17 drive the moving plates 21 to move. During the movement of the moving plates 21, the moving plates 21 first come into contact with the inclined surfaces of the first guiding blocks 18, and under the guiding action of the inclined surfaces, the moving plates 21 move towards the direction of the rotating plates 17. Under the guiding action of the first telescopic rods 171, the first springs 22 are compressed. After the rollers 321 abut against the inner bottom wall of the avoidance groove 191, the pipe fitting is placed inside the frame 16. The pipe fitting is located on the first guiding blocks 18. Then, during the process that the rollers 321 move out of the avoidance groove 191, as the frame 16 gradually moves upward relative to the support plate 15, the first springs 22 gradually release elastic force and push the moving plates 21 to move towards the direction away from the rotating plates 17. During the movement of the moving plates 21, the two moving plates 21 complete the clamping of the pipe fitting and drive the pipe fitting to move upward, so that the pipe fitting is separated from the first guiding blocks 18. Finally, the rollers 321 move out of the avoidance groove 191 and move along the upper surface of the annular plate 19.

[0039] Reference Figure 1 , Figure 2 and Figure 3, on one side of the frame 16, there is a rotating assembly 4 that drives the rotating plate 17 to rotate. The rotating plate assembly 4 includes a rotating electric cylinder 41 and a first rotating rod 42. The rotating electric cylinder 41 is fixed on an outer side wall of the frame 16. One end of the first rotating rod 42 is fixedly connected to the output shaft of the rotating electric cylinder 41. The end of the first rotating rod 42 far from the rotating electric cylinder 41 penetrates through one side wall of the frame 16 and extends to the rotating plate 17 and is fixedly connected to the rotating plate 17. The first rotating rod 42 is rotationally connected to the frame 16. At the end of the frame 16 far from the first rotating rod 42, there is a second rotating rod 163. The second rotating rod 163 penetrates through one side wall of the frame 16 and is rotationally connected to the frame 16. The end of the second rotating rod 163 inside the frame 16 is fixedly connected to the rotating plate 17 far from the first rotating rod 42. A first gear 421 is fixed on the first rotating rod 42. The first gear 421 is outside the frame 16. A fourth gear 164 is fixed at the end of the second rotating rod 163 outside the frame 16. A transmission rod 162 is rotationally connected to an outer side wall of the frame 16. At the transmission rod 162, there is a linkage assembly 5 for the linkage of the first rotating rod 42 and the second rotating rod 163.

[0040] The linkage assembly 5 includes a second gear 51 and a third gear 52. The second gear 51 is fixedly connected to one end of the transmission rod 162. The second gear 51 meshes with the first gear 421. The third gear 52 is fixedly connected to the end of the transmission rod 162 far from the second gear 51. The third gear 52 meshes with the fourth gear 164.

[0041] When the frame 16 carries the pipe fitting and moves to the laser welding head 12, the support plate 15 stops rotating. The rotating electric cylinder 41 is started. The rotating electric cylinder 41 drives the first rotating rod 42 to rotate. The first rotating rod 42 drives the first gear 421 and the rotating plate 17 connected thereto to rotate. The first gear 421 drives the second gear 51 to rotate. The second gear 51 drives the transmission rod 162 to rotate. The transmission rod 162 drives the third gear 52 to rotate. The third gear 52 drives the fourth gear 164 to rotate. The fourth gear 164 drives the second rotating rod 163 to rotate. The second rotating rod 163 drives the rotating plate 17 connected thereto to rotate. The rotating plate 17 drives the first telescopic rod 171 to rotate. The first telescopic rod 171 drives the moving plate 21 to rotate. The moving plate 21 drives the pipe fitting to rotate. The laser welding head 12 welds the pipe fitting.

[0042] Reference Figure 1 , Figure 2 and Figure 3, a sliding groove 6 is formed through the moving plate 21. Two sliders 61 are slidably connected in the sliding groove 6 of the moving plate 21. A clamping plate 62 is fixedly provided on one side of the slider 61 facing away from the rotating plate 17. The clamping plates 62 are parallel to each other and perpendicular to the moving plate 21. An auxiliary plate 64 is fixedly provided on one side of the slider 61 facing away from the clamping plate 62. The auxiliary plates 64 are parallel to each other. Fixed plates 63 are fixedly provided on opposite sides of the moving plate 21. The fixed plates 63 are parallel to the auxiliary plates 64. The auxiliary plates 64 are located between the two fixed plates 63 on both sides. A moving component 7 for driving the two auxiliary plates 64 to move towards or away from each other is provided at the rotating plate 17.

[0043] The moving component 7 includes second guiding blocks 71 and third springs 72. There are two second guiding blocks 71 and two third springs 72. The second guiding blocks 71 are fixedly provided on the side of the rotating plate 17 facing the moving plate 21. The second guiding blocks 71 are located on opposite sides of the first telescopic rod 171. The opposite side walls of the second guiding blocks 71 are provided as inclined surfaces. The two third springs 72 are respectively fixedly provided between the adjacent auxiliary plates 64 and the fixed plates 63.

[0044] During the process of the moving plate 21 moving towards the adjacent rotating plate 17, the auxiliary plate 64 first contacts the inclined surface of the second guiding block 71. Under the guiding action of the inclined surface of the second guiding block 71, the two auxiliary plates 64 move away from each other, and the third spring 72 is compressed. After placing the pipe fitting on the first guiding block 18, the end of the pipe fitting is located between the two clamping plates 62. As the frame 16 gradually moves upward, the moving plate 21 gradually moves away from the rotating plate 17. The third spring 72 releases elastic force, pushing the two auxiliary plates 64 to move towards each other. The auxiliary plate 64 drives the slider 61 to move, and the slider 61 drives the clamping plate 62 to move. The two clamping plates 62 complete the clamping and fixing of the pipe fitting, so that during the welding process of the pipe fitting, the pipe fitting is not easily moved randomly.

[0045] The implementation principle of a rotary pipe fitting welding machine according to an embodiment of the present application is as follows: After placing the pipe fitting on the first guiding block 18, the motor 14 is started. The motor 14 then drives the support rod 13 to rotate, thereby driving the support plate 15 and the frame 16 thereon and the pipe fitting to move together. At the same time, the lifting assembly 3 lifts the frame 16, while the fixing assembly 2 firmly fixes the pipe fitting and moves upward therewith. When the next roller 321 smoothly enters the avoidance groove 191, the support plate 15 stops rotating. At this time, the pipe fitting can be placed again on the first guiding block 18 directly above the avoidance groove 191. Subsequently, the support plate 15 continues to rotate until the frame 16 carries the pipe fitting to move below the laser welding head 12, and the support plate 15 pauses rotation. At this time, the rotating assembly 4 is started to drive the rotating plate 17 and the fixing assembly 2 to rotate, thereby driving the pipe fitting to rotate so that the laser welding head 12 can complete the welding operation. After welding, the support plate 15 continues to drive the pipe fitting forward until the next pipe fitting arrives below the laser welding head 12 for a new round of welding. When the welded pipe fitting moves to the position of the avoidance groove 191, the fixing assembly 2 releases the fixation of the pipe fitting, and the staff can remove the welded pipe fitting and replace it with a new pipe fitting to be welded, without manually transporting the pipe fitting to the welding point or removing the finished product, saving time, and thus improving the working efficiency of pipe fitting welding.

[0046] The embodiments of this specific implementation manner are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A rotary pipe welding machine, comprising a welding table (1), characterized in that: The welding platform (1) is slidably connected to a fixing rod (11), the fixing rod (11) is connected to a laser welding head (12), the upper surface of the welding platform (1) is rotatably connected to a support rod (13), the lower surface of the welding platform (1) is fixedly provided with a motor (14), the output shaft of the motor (14) is fixedly connected to the lower end of the support rod (13), the upper end of the support rod (13) is fixedly provided with a support plate (15), the upper surface of the support plate (15) is provided with a plurality of frames (16), the plurality of frames (16) are sequentially arranged along the side of the support plate (15), the inner walls of the frames (16) on opposite sides are rotatably connected to rotating plates (17), the rotating plates (17) are parallel to each other, a fixing component (2) for fixing a pipe fitting is provided on the rotating plate (17), a lifting component (3) for lifting the frame (16) upward is provided below the frame (16), and a rotating component (4) for driving the rotating plate (17) to rotate is provided on the frame (16).

2. A rotary pipe welding machine according to claim 1, characterized in that: The fixing assembly (2) comprises a moving plate (21) and a first spring (22). Two moving plates (21) and two first springs (22) are provided and correspond to each other. The two moving plates (21) are respectively provided on the opposite sides of the two rotating plates (17). The moving plates (21) are parallel to each other. The first spring (22) is fixed between the moving plate (21) and the rotating plate (17). A first telescopic rod (171) is fixed between the moving plate (21) and the rotating plate (17). The first telescopic rod (171) is composed of a plurality of rod bodies sleeved together. The rod bodies are slidably connected. The first spring (22) is sleeved outside the first telescopic rod (171).

3. A rotary pipe welding machine according to claim 2, characterized in that: A first guide block (18) for guiding the movement of the movable plate (21) is arranged at the frame (16); the first guide block (18) and the support plate (15) are fixedly connected; and opposite sides of the first guide block (18) are arranged as inclined surfaces.

4. A rotary pipe welding machine according to claim 1, characterized in that: The frame (16) is fixedly provided with supporting rods (161) at opposite ends, the bottom end of the supporting rod (161) passes through the supporting plate (15), the supporting rod (161) and the supporting plate (15) are slidably connected, the lifting assembly (3) comprises a supporting plate (31) and a supporting rod (32), the supporting plate (31) is arranged below the supporting rod (161), the bottom ends of the two supporting rods (161) are fixedly connected to the supporting plate (31), one end of the supporting rod (32) is fixedly connected to a side of the supporting plate (31) facing the welding platform (1), an annular plate (19) is fixedly provided on the welding platform (1), an avoidance groove (191) is penetrated and opened at one end of the annular plate (19) away from the fixed rod (11), the opposite side walls of the avoidance groove (191) are arranged as inclined surfaces, and the bottom end of the supporting rod (32) is located on the annular plate (19).

5. A rotary pipe welding machine according to claim 4, characterized in that: The bottom end of the support rod (32) is connected to a roller (321).

6. A rotary pipe welding machine according to claim 4, characterized in that: Two second springs (311) are fixedly arranged between the support plate (31) and the supporting plate (15), and the second springs (311) are sleeved outside the support rods (161) and correspond one to one.

7. The rotary pipe welding machine according to claim 1, characterized in that: The rotating assembly (4) comprises a rotating electric cylinder (41) and a first rotating rod (42); one end of the rotating electric cylinder (41) is fixedly arranged on one side of the frame (16); one end of the first rotating rod (42) is fixedly connected to the rotating electric cylinder (41); the other end of the first rotating rod (42) passes through a side wall of the frame (16); the first rotating rod (42) is fixedly connected to an adjacent rotating plate (17); and a linkage assembly (5) for linkage of two rotating plates (17) is provided at the frame (16).

8. The rotary pipe welding machine according to claim 7, characterized in that: A first gear (421) is fixedly provided on the first rotating rod (42); a transmission rod (162) is rotatably connected to one side of the frame (16); the linkage assembly (5) comprises a second gear (51) and a third gear (52); the second gear (51) is fixedly connected to one end of the transmission rod (162); the second gear (51) is meshed with the first gear (421); the third gear (52) is fixedly connected to one end of the transmission rod (162) away from the second gear (51); a second rotating rod (163) is provided on one side of the frame (16) away from the rotary electric cylinder (41); the second rotating rod (163) passes through a side wall of the frame (16); one end of the second rotating rod (163) located in the frame (16) is fixedly connected to an adjacent rotating plate (17); a fourth gear (164) is fixedly provided on the second rotating rod (163); the fourth gear (164) is meshed with the third gear (52).

9. The rotary pipe welding machine according to claim 2, characterized in that: The movable plate (21) is provided with a sliding groove (6) extending through it. The movable plate (21) is slidably connected to two sliders (61) at the sliding groove (6). A clamping plate (62) is fixedly provided on the side of the two sliders (61) facing away from the rotating plate (17). Two fixed plates (63) are fixedly provided on the side of the movable plate (21) facing away from the clamping plate (62). An auxiliary plate (64) is fixedly provided on the side of the slider (61) facing away from the clamping plate (62). The auxiliary plate (64) is located between the two fixed plates (63). A movable component (7) for driving the two sliders (61) to move toward or away from each other is provided at the auxiliary plate (64).

10. The rotary pipe welding machine according to claim 9, characterized in that: The moving assembly (7) comprises a second guide block (71) and a third spring (72); the second guide block (71) is fixedly arranged on a side of the rotating plate (17) facing the moving plate (21); opposite sides of the second guide block (71) are arranged as inclined surfaces; two third springs (72) are arranged; and the two third springs (72) are respectively fixedly arranged between the auxiliary plate (64) and the adjacent fixed plate (63).

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