A transformer tube flange welding station

Abstract

The utility model belongs to pipe flange manufacturing technical field relates to a transformer pipe flange welding workstation, and sets up first welding mechanism, first turnover mechanism, second welding mechanism and second turnover mechanism between feeding table and discharging table, first welding mechanism includes first welding base, second motor is installed in first welding base inside, and the down -pressing cylinder is installed on first welding base through down -pressing support and first motor, and first welding torch is installed on first welding base through first adjusting cylinder and first welding torch support, second welding mechanism includes second welding base, third motor is installed on second welding base outside, driving wheel is fixedly connected with third motor pivot, and the driven toothed disc on second welding base upper surface is engaged transmission connection with driving wheel, and second welding torch is installed on second welding base through second adjusting cylinder and second welding torch support. The utility model's welding mechanism can adjust the welding seam and the welding torch alignment position through motor, realizes the automatic welding of pipe flange welding seam.

Description

Technical Field

[0001] This utility model belongs to the field of pipe flange manufacturing technology, specifically relating to a transformer pipe flange welding workstation for processing pipe flanges. Background Technology

[0002] With the large-scale advancement of ultra-high voltage power grid construction and new energy (wind power, photovoltaic) grid connection projects, transformers are developing towards higher voltage, larger capacity, and lighter weight, which puts forward higher standards for the pressure resistance and sealing performance of pipe flange welds.

[0003] Currently, the welding method for transformer tube flanges generally involves fixing the pipe fitting and flange on a tooling fixture, and then manually welding the weld seam of the pipe fitting and flange with a handheld welding torch. However, the existing pipe flange welding tooling has a fixed position and cannot adjust the weld seam position of the pipe fitting and flange, which leads to a reduction in pipe flange welding efficiency. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a transformer tube flange welding workstation. The technical solution adopted by this utility model is as follows: A transformer tube flange welding workstation includes a loading platform, a gantry robot, and an unloading platform. A first welding mechanism, a first tilting mechanism, a second welding mechanism, and a second tilting mechanism are sequentially arranged between the loading platform and the unloading platform. The first welding mechanism includes a first welding base, a second motor installed inside the first welding base with its rotating shaft extending upwards, a first motor installed outside the first welding base with its rotating shaft extending upwards, a downward pressure bracket fixedly connected to the rotating shaft of the first motor, a downward pressure cylinder fixedly installed on the downward pressure bracket, a mounting plate positioned above the first welding base and fixedly connected to the rotating shaft of the second motor, a first magnet structure embedded in the surface of the mounting plate, a first welding torch holder fixedly installed on the outer side of the first welding base opposite to the first motor, and a first adjusting cylinder fixedly installed on the first welding torch holder with its piston rod inclined. The setup includes a first welding torch fixedly connected to the piston rod of a first adjusting cylinder; a second welding mechanism including a second welding base with a first through hole in the center of its upper surface; a third motor fixedly mounted on the outside of the second welding base with its shaft extending upwards; a drive wheel fixedly connected to the shaft of the third motor; a driven gear plate rotatably connected to the upper surface of the second welding base; the driven gear plate meshing with the drive wheel; a second through hole corresponding to the first through hole in the center of the driven gear plate; the diameters of both the first and second through holes being larger than the pipe flange diameter; a second magnet structure embedded in the surface of the driven gear plate; a second welding torch holder fixedly mounted on the outside of the second welding base opposite to the third motor; a second adjusting cylinder fixedly mounted on the second welding torch holder; the piston rod of the second adjusting cylinder being inclined; and a second welding torch fixedly connected to the piston rod of the second adjusting cylinder.

[0005] Preferably, both the first and second flipping mechanisms include a pair of supports. A rotary motor is fixedly installed on the outside of one of the supports. The rotating shaft of the rotary motor passes through the support and is fixedly connected to the end of the rotating plate. The two ends of the rotating plate are rotatably connected to the pair of supports. An arched groove is opened in the middle part of the rotating plate, and an electromagnet is embedded in the arched groove. A pair of channel steel bases are installed below the rotating plate. A transverse cylinder is fixedly installed on one side above the pair of channel steel bases. The piston rod of the transverse cylinder extends and is fixedly connected to the transverse plate. A lifting cylinder is fixedly connected to the lower surface of the transverse plate. The piston rod of the lifting cylinder extends upward and passes through the transverse plate. A lifting plate is fixedly connected to the piston rod of the lifting cylinder. A pair of lifting frames are symmetrically arranged on the upper surface of the lifting plate.

[0006] Preferably, the distance between the two support brackets is greater than the pipe diameter of the pipe flange.

[0007] Preferably, the support is wider at the bottom and narrower at the top, and the upper part is machined into an arc shape.

[0008] Preferably, the first welding gun holder is an L-shaped structure, and the upper end of the L-shaped structure is integrally formed with a first inclined mounting plate.

[0009] Preferably, the second welding gun holder is an L-shaped structure, and the upper end of the L-shaped structure is integrally formed with a second inclined mounting plate.

[0010] Preferably, the gantry robot includes a workstation gantry, a moving component mounted on the workstation gantry, and a robot mounted on the moving component, wherein the robot employs a magnetic attraction mechanism.

[0011] Preferably, a barrel of welding wire and a welding gun power supply are installed on the outside of the workstation truss.

[0012] The beneficial effects of this utility model are: The welding mechanism in this invention can automatically weld the weld seams of pipe flanges by adjusting the alignment of the weld seams with the welding torch via a motor, thereby improving welding efficiency. This invention is equipped with a first welding mechanism and a second welding mechanism, which can weld the two weld seams on the outer surface and inner wall of the pipe flange respectively, thereby improving the sealing performance of the pipe flange after welding. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the transformer tube flange welding workstation according to an embodiment of the present utility model; Figure 2 for Figure 1 Right view of the first welding mechanism in the middle; Figure 3 for Figure 1 Right view of the first flipping mechanism; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; Figure 5 for Figure 1 A schematic diagram of the structure after the first flipping mechanism has flipped; Figure 6 for Figure 5 Top view; Figure 7 for Figure 6 Cross-sectional view along the BB direction; Figure 8 for Figure 1 Right view of the second welding mechanism; In the diagram, 1 is the loading platform, 2 is the gantry robot, 3 is the first tilting mechanism, 4 is the first welding mechanism, 5 is the second welding mechanism, 6 is the second tilting mechanism, 7 is the unloading platform, 8 is the pressing cylinder, 9 is the pressing bracket, 10 is the mounting plate, 11 is the first motor, 12 is the second motor, 13 is the first welding torch, 14 is the first adjusting cylinder, 15 is the first welding torch holder, 16 is the first welding base, 17 is the rotary motor, 18 is the pipe flange, 19 is the rotating plate, 20 is the support, 21 is the lifting frame, 22 is the lifting cylinder, 23 is the channel steel base, 24 is the lifting plate, 25 is the transverse plate, 26 is the electromagnet, 27 is the transverse cylinder, 28 is the second welding base, 29 is the third motor, 30 is the driving wheel, 31 is the driven gear plate, 32 is the second welding torch holder, 33 is the second welding torch, and 34 is the second adjusting cylinder. Detailed Implementation

[0014] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0015] like Figure 1As shown, a transformer tube flange welding workstation includes a loading platform 1, a gantry robot 2, a first welding mechanism 4, a first flipping mechanism 3, a second welding mechanism 5, a second flipping mechanism 6, and a unloading platform 7. The gantry robot 2 utilizes existing equipment, including a workstation gantry fixedly installed on the ground, a moving component mounted on the workstation gantry, and a robot arm mounted on the moving component. The robot arm uses a magnetic suction mechanism to grasp components and can move in three dimensions along the X, Y, and Z axes. Two parallel loading platforms 1 are fixedly installed at the lower left end of the workstation gantry, with flanges and pipe fittings to be welded placed on them respectively. An unloading platform 7 is fixedly installed at the lower right end of the workstation gantry, used to place the welded pipe flange 18. The first welding mechanism 4, the first flipping mechanism 3, the second welding mechanism 5, and the second flipping mechanism 6 are sequentially fixed between the loading platform 1 and the unloading platform 7. The workstation truss is also equipped with a barrel of welding wire and a welding gun power supply. The barrel of welding wire supplies welding wire to the welding gun, and the welding gun power supply supplies power to the welding gun.

[0016] like Figure 2 As shown, the first welding mechanism 4 includes a first welding base 16 with an internal hollow structure, which is fixedly mounted on the ground. A second motor 12 is fixedly installed inside the hollow structure of the first welding base 16, and the rotating shaft of the second motor 12 extends upward to the upper part of the first welding base 16. A first motor 11 is fixedly installed on the upper front side of the first welding base 16 via a first connecting plate, and the rotating shaft of the first motor 11 extends upward. A lower pressure bracket 9 is fixedly connected to the rotating shaft of the first motor 11. The lower pressure bracket 9 has an inverted L-shaped structure, and the lower part of the inverted L-shaped structure is fixedly connected to the rotating shaft of the first motor 11, allowing the lower pressure bracket 9 to rotate under the control of the first motor 11. A lower pressure cylinder 8 is fixedly installed above the end of the inverted L-shaped structure of the lower pressure bracket 9, and the piston rod of the lower pressure cylinder 8 passes downward through the end of the inverted L-shaped structure of the lower pressure bracket 9. The mounting plate 10 is positioned above the first welding base 16. The mounting plate 10 is fixedly connected to the rotating shaft of the second motor 12, and the second motor 12 can control the rotation of the mounting plate 10. A first magnet structure is embedded on the upper surface of the mounting plate 10 to assist in fixing the flange. The first welding torch holder 15 is fixedly installed on the upper rear side of the first welding base 16. The first welding torch holder 15 has an L-shaped structure, and the upper end of the L-shaped structure is integrally formed with a first inclined mounting plate. The first adjusting cylinder 14 is fixedly connected to the first inclined mounting plate at the upper end of the first welding torch holder 15 through the first mounting bracket. The first mounting bracket has an L-shaped structure. The piston rod of the first adjusting cylinder 14 is inclined forward and downward through the first mounting bracket. The first welding torch 13 is fixedly connected to the piston rod of the first adjusting cylinder 14 through the first connecting member. The first connecting member has an L-shaped structure. The first adjusting cylinder 14 can control the first welding torch 13 to move back and forth at a certain tilt angle.

[0017] like Figure 3-7As shown, the first flipping mechanism 3 includes a pair of supports 20 fixedly installed on the ground in parallel. The supports 20 are wider at the bottom and narrower at the top, and the upper part is machined into an arc shape. A rotary motor 17 is fixedly installed on the upper front side of the front support 20. The rotating shaft of the rotary motor 17 extends rearward and passes through the support 20. The front end of the rotating plate 19 is fixedly connected to the rotating shaft of the rotary motor 17. The two ends of the rotating plate 19 are rotatably connected and installed between the pair of supports 20. An arched groove is opened in the middle part of the rotating plate 19, and an electromagnet 26 is embedded in the arched groove of the rotating plate 19. A pair of channel steel bases 23 are fixedly installed on the ground below the rotating plate 19 in parallel. A transverse cylinder 27 is fixedly installed on the left side above the pair of channel steel bases 23 through a connecting frame. The piston rod of the transverse cylinder 27 extends to the right. The transverse plate 25 is fixedly connected to the piston rod of the transverse cylinder 27. Through the action of the transverse cylinder 27, the transverse plate 25 can move left and right relative to the channel steel base 23. The lifting cylinder 22 is fixedly connected to the lower surface of the transverse plate 25 and can move left and right with the transverse plate 25. The piston rod of the lifting cylinder 22 extends upward and passes through the transverse plate 25. The top plate 24 is fixedly connected to the piston rod of the lifting cylinder 22. A pair of lifting frames 21 are arranged symmetrically in parallel front and rear on the upper surface of the top plate 24. The distance between the two lifting frames 21 is slightly larger than the pipe diameter of the pipe flange 18.

[0018] like Figure 8 As shown, the second welding mechanism 5 includes a second welding base 28 with an internal hollow structure, fixedly mounted on the ground. A first through hole is formed in the center of the upper surface of the second welding base 28. A third motor 29 is fixedly mounted on the upper front side of the second welding base 28 via a second connecting plate. The rotating shaft of the third motor 29 extends upwards. A drive wheel 30 is fixedly connected to the rotating shaft of the third motor 29. A driven gear 31 is rotatably connected to the upper surface of the second welding base 28. The driven gear 31 is meshed with the drive wheel 30, and the rotation of the driven gear 31 and the drive wheel 30 can be controlled by the third motor 29. A second through hole, corresponding to the first through hole in the second welding base 28, is formed in the center of the driven gear 31. The diameters of both the first and second through holes are slightly larger than the diameter of the pipe flange 18. A second magnet structure is embedded in the upper surface of the driven gear 31 to assist in fixing the pipe flange 18. The second welding torch holder 32 is fixedly installed on the upper rear side of the second welding base 28. The second welding torch holder 32 has an L-shaped structure. The upper end of the L-shaped structure is integrally formed with a second inclined mounting plate. The second adjusting cylinder 34 is fixedly connected to the second inclined mounting plate at the upper end of the second welding torch holder 32 through the second mounting bracket. The second mounting bracket has an L-shaped structure. The piston rod of the second adjusting cylinder 34 passes through the second mounting bracket at a forward and downward angle. The second welding torch 33 is fixedly connected to the piston rod of the second adjusting cylinder 34 through the second connecting piece. The second connecting piece has an L-shaped structure. The second adjusting cylinder 34 can control the second welding torch 33 to move back and forth at a certain tilt angle.

[0019] The structure of the second flipping mechanism 6 is exactly the same as that of the first flipping mechanism 3.

[0020] Both the first and second magnet structures can be started and stopped using electromagnets.

[0021] This utility model provides a transformer tube flange welding workstation, and the welding process for the tube flange 18 is as follows: During the welding of pipe flange 18, the truss robot 2 first uses three-dimensional movement to grab the flange at the loading platform 1 and place it on the mounting plate 10 of the first welding mechanism 4. The robot then grabs the pipe fitting at the loading platform 1 and places it on the flange. The first motor 11 starts, rotating the lowering bracket 9 to align the piston rod of the lowering cylinder 8 with the pipe fitting. The lowering cylinder 8 starts, and its piston rod extends into the pipe fitting to prevent displacement. The first adjusting cylinder 14 starts, aligning the first welding torch 13 with the weld seam on the outer surface of the pipe flange 18. The first welding torch 13 then starts welding the weld seam. The second motor 12 starts, slowly rotating the mounting plate 10. The pipe flange 18 rotates slowly with the mounting plate 10 due to the magnetic attraction of the first magnet structure, and the first welding torch 13 performs full welding on the weld seam. After the pipe flange 18 rotates one revolution, the first welding torch 13 closes and resets, the lowering cylinder 8 resets, and the first motor 11 starts moving the lowering bracket 9 away.

[0022] The truss robot 2 grips the pipe flange 18 and places it on the upper surface of the rotating plate 19 of the first flipping mechanism 3. The electromagnet 26 activates to fix the pipe flange 18. The rotary motor 17 starts, flipping the pipe flange 18 180°. The lifting cylinder 22 activates, and the lifting frame 21 moves upward to contact the surface of the pipe flange 18, while the electromagnet 26 deactivates. The lifting cylinder 22 resets, and the lifting frame 21 lifts the pipe flange 18 and moves downward. The lateral movement cylinder 27 activates, pushing the pipe flange 18 to the right (to avoid obstruction by the rotating plate 19). The truss robot 2 grips the pipe flange 18 and places it on the driven gear plate 31 of the second welding mechanism 5. The pipe portion of the pipe flange 18 is placed into the second through hole of the driven gear plate 31 and the first through hole of the second welding base 28. The second magnet structure assists in fixing the pipe flange 18. The second adjusting cylinder 34 is activated, the second welding torch 33 aligns with the weld seam on the inner wall of the pipe flange 18, and the second welding torch 33 begins welding. The third motor 29 is activated, driving the pipe flange 18 to rotate via the drive wheel 30 and the driven gear 31, thus performing full welding on the weld seam. After the pipe flange 18 rotates one revolution, the second welding torch 33 is closed and reset, and the third motor 29 stops.

[0023] The truss robot 2 grips the pipe flange 18 and places it on the rotating plate 19 of the second flipping mechanism 6. During placement, the pipe flange 18 passes through the arched groove of the rotating plate 19 with the pipe facing downwards. The electromagnet 26 of the second flipping mechanism 6 is activated, and the rotary motor 17 is activated. The pipe flange 18 rotates 180°, with the pipe facing upwards. The lifting cylinder 22 is activated, and the lifting frame 21 moves upwards to contact the pipe flange 18. The electromagnet 26 is closed, the lifting cylinder 22 is reset, the pipe flange 18 moves downwards, the lateral movement cylinder 27 is activated, and the pipe flange 18 moves to the right. The truss robot 2 grips the pipe flange 18 and places it on the unloading platform 7.

[0024] In this embodiment of the utility model, all technical features not described in detail are existing technologies or conventional technical means, and will not be repeated here.

[0025] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model.

Claims

1. A transformer tube flange welding workstation, comprising a loading platform, a gantry robot, and an unloading platform, characterized in that, A first welding mechanism, a first tilting mechanism, a second welding mechanism, and a second tilting mechanism are sequentially arranged between the loading platform and the unloading platform. The first welding mechanism includes a first welding base, a second motor installed inside the first welding base with its rotating shaft extending upwards, a first motor installed outside the first welding base with its rotating shaft extending upwards, a lowering bracket fixedly connected to the rotating shaft of the first motor, a lowering cylinder fixedly installed on the lowering bracket, a mounting plate positioned above the first welding base and fixedly connected to the rotating shaft of the second motor, a first magnet structure embedded on the surface of the mounting plate, a first welding torch holder fixedly installed on the outer side of the first welding base opposite to the first motor, a first adjusting cylinder fixedly installed on the first welding torch holder with its piston rod tilted, and a first welding torch and a first adjusting cylinder... The piston rod is fixedly connected; the second welding mechanism includes a second welding base, a first through hole is opened in the middle of the upper surface of the second welding base, a third motor is fixedly installed on the outside of the second welding base, the rotating shaft of the third motor extends upward, the driving wheel is fixedly connected to the rotating shaft of the third motor, the driven gear plate is rotatably connected to the upper surface of the second welding base, the driven gear plate is meshed with the driving wheel for transmission, a second through hole corresponding to the first through hole is opened in the middle of the driven gear plate, the diameter of the first through hole and the diameter of the second through hole are both larger than the pipe diameter of the pipe flange, a second magnet structure is embedded in the surface of the driven gear plate, the second welding gun holder is fixedly installed on the outside of the second welding base opposite to the third motor, the second adjusting cylinder is fixedly installed on the second welding gun holder, the piston rod of the second adjusting cylinder is inclined, and the second welding gun is fixedly connected to the piston rod of the second adjusting cylinder.

2. The transformer tube flange welding workstation according to claim 1, characterized in that, Both the first and second flipping mechanisms include a pair of supports. A rotary motor is fixedly installed on the outside of one of the supports. The rotating shaft of the rotary motor passes through the support and is fixedly connected to the end of the rotating plate. The two ends of the rotating plate are rotatably connected to the pair of supports. An arched groove is opened in the middle part of the rotating plate, and an electromagnet is embedded in the arched groove. A pair of channel steel bases are installed below the rotating plate. A transverse cylinder is fixedly installed on one side above the pair of channel steel bases. The piston rod of the transverse cylinder extends and is fixedly connected to the transverse plate. A lifting cylinder is fixedly connected to the lower surface of the transverse plate. The piston rod of the lifting cylinder extends upward and passes through the transverse plate. A lifting plate is fixedly connected to the piston rod of the lifting cylinder. A pair of lifting frames are symmetrically arranged on the upper surface of the lifting plate.

3. A transformer tube flange welding workstation according to claim 2, characterized in that, The distance between the two support brackets is greater than the pipe diameter of the pipe flange.

4. A transformer tube flange welding workstation according to claim 3, characterized in that, The support is wider at the bottom and narrower at the top, with the upper part machined into an arc shape.

5. A transformer tube flange welding workstation according to claim 1, characterized in that, The first welding gun holder has an L-shaped structure, and the upper end of the L-shaped structure is integrally formed with the first inclined mounting plate.

6. A transformer tube flange welding workstation according to claim 1, characterized in that, The second welding gun holder has an L-shaped structure, and the upper end of the L-shaped structure is integrally formed with a second inclined mounting plate.

7. A transformer tube flange welding workstation according to claim 1, characterized in that, The gantry robot includes a workstation gantry, a moving component mounted on the workstation gantry, and a robot arm mounted on the moving component. The robot arm uses a magnetic attraction mechanism.

8. A transformer tube flange welding workstation according to claim 7, characterized in that, The outside of the workstation truss is equipped with barrel-shaped welding wire and a welding torch power supply.

Images