Power transformer shell forming equipment

Abstract

The present invention belongs to the technical field of electric power equipment production, and discloses electric power transformer housing forming and processing equipment; it includes a fixed frame, a cylinder is installed on the top of the fixed frame, a bending head is fixedly connected to the output end of the cylinder, and also includes: two forming plates and two pressure-maintaining plates, and the two forming plates and the two pressure-maintaining plates are located directly below the bending head. The present invention uses a pressure-maintaining assembly and a pressure-maintaining plate. When it is necessary to maintain pressure on the metal plate after bending and forming, the metal plate after bending and forming is placed on the two pressure-maintaining plates, and the metal plate to be bent and formed is placed on the first round-shaped plate. The cylinder is started to drive the bending head, and the bending head can bend the metal plate on the first round-shaped plate into the two forming plates. During the bending process, a large downward pressure will be generated, and the two forming plates can maintain pressure on the metal plate in the pressure-maintaining plate under the action of pressure, so as to achieve the purpose of simultaneous bending and pressure-maintaining.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment production, and more specifically to electric power transformer shell forming and processing equipment. Background Art

[0002] The power transformer casing is a protective cover for the transformer. Its main functions include protecting the internal core, winding and other key components from the external environment, reducing the failure rate and ensuring the normal operation of the power grid. The forming processing of the power transformer casing mostly uses traditional stamping, bending, welding and other processes to process metal plates. At present, special bending and forming equipment is used to bend the metal plates into the shape required for processing the power transformer casing.

[0003] Existing bending and forming equipment usually includes a base and a bending head. A bending groove adapted to the bending head is arranged in the base. The metal plate to be bent is placed on the base, and the bending head moves downward to press the metal plate into the bending groove so that the metal plate is bent. However, the current bending and forming equipment cannot maintain the pressure of the formed metal plate. If the pressure is not maintained, the metal plate may try to restore its original shape after bending, affecting the dimensional accuracy and consistency of the metal plate. Summary of the invention

[0004] The present invention is to solve the problem in the background technology that the current bending forming equipment cannot maintain the pressure of the formed metal plate, and proposes a power transformer shell forming processing equipment.

[0005] To achieve the above object, the present invention provides the following technical solution: a power transformer housing forming and processing equipment, comprising a fixed frame, a cylinder is installed on the top of the fixed frame, a bending head is fixedly connected to the output end of the cylinder, and further comprising:

[0006] Two forming plates and two pressure-keeping plates, the two forming plates and the two pressure-keeping plates are all located directly below the bending head, and a forming groove compatible with the bending head is formed between the two forming plates, and a pressure-keeping groove compatible with the two forming plates is formed between the two pressure-keeping plates. The fixed frame is provided with a pressure-keeping component for maintaining pressure on the metal plates after forming, and the pressure-keeping component maintains pressure by cooperating with the forming plates and the pressure-keeping plates. The fixed frame is provided with an adjusting component for adjusting the angle between the two forming plates and the two pressure-keeping plates, and the fixed frame is provided with a rotating component for rotating the two forming plates and the two pressure-keeping plates at the same time.

[0007] Furthermore, the pressure-maintaining assembly includes a base fixedly connected to the bottom of the fixed frame, two pressure-maintaining plates are arranged on the base, four first vertical rods are slidably inserted on the top of the base, the top ends of the four first vertical rods are fixedly connected to a first round-shaped plate, two forming plates are arranged on the first round-shaped plate, four second vertical rods are fixedly connected to the top of the first round-shaped plate, the top ends of the four second vertical rods are fixedly connected to a second round-shaped plate, a third round-shaped plate is fixedly connected to the bending head through a horizontal plate, and the second round-shaped plate is arranged on the top of the third round-shaped plate.

[0008] Furthermore, the adjustment component includes a first rotating shaft fixedly connected to both ends of the forming plate and the pressure maintaining plate, a U-shaped seat is rotatably connected between the corresponding two first rotating shafts, rectangular grooves are provided on the base and the first circular plate, the U-shaped seat slides in the corresponding rectangular grooves, two of the U-shaped seats are fixedly connected to connecting rods, and the other two U-shaped seats are fixedly connected to L-shaped rods, the connecting rods slide through the corresponding L-shaped rods, one end of the connecting rods is fixedly connected to a rack, a first motor is fixedly connected to the base, and the output shaft of the first motor is fixedly connected to a gear meshing with the two racks.

[0009] The worm gear of the second motor is connected with the drive gear of the third motor through the fixed plate, and the drive gear of the third motor is connected with the drive gear of the third motor to the drive gear of the fourth motor.

[0010] Furthermore, a first hexagonal groove is defined in the fourth rotating shaft, a first spring is fixedly connected to the inner wall of the first hexagonal groove, one end of the first spring is fixedly connected to a hexagonal column slidably inserted in the first hexagonal groove, one end of the hexagonal column and the inner wall of the first hexagonal groove are fixedly connected to electromagnets facing each other, and a second hexagonal groove is defined at one end of the second rotating shaft facing the hexagonal column.

[0011] Furthermore, the base is provided with a spray assembly for spraying stress relieving agent toward the bending part of the metal plate, the spray assembly includes a storage box fixedly connected to the bottom of the base, a side wall of the storage box is connected and fixedly connected to a plurality of connecting pipes, one end of the connecting pipe is fixedly connected to a transverse pipe, and the transverse pipe is connected and fixedly connected to a plurality of spray pipes facing the middle of the two pressure maintaining plates.

[0012] Furthermore, four vertical slots are provided in the base, and the first vertical rods are slidably inserted in the corresponding vertical slots, wherein two of the vertical slots are slidably connected with a U-shaped plate, a second spring is fixedly connected between the U-shaped plate and the base, a toggle block is rotatably connected to the U-shaped plate, a baffle that contacts the top of the toggle block is fixedly connected to the U-shaped plate, and an elastic first connecting rope is fixedly connected between the top of the toggle block and the top of the U-shaped plate. The top of the base is rotatably connected with a threaded rod through the connecting plate, one end of the threaded rod is fixedly connected to a circular plate, a plurality of rotating rods are fixedly connected to the outer wall of the circular plate, some of the rotating rods are located directly below the toggle block, and the outer wall of the threaded rod is threadedly connected to a moving plate, four moving columns that penetrate the storage box are fixedly connected to the moving plate, and one end of the moving column is fixedly connected to an extrusion plate slidably connected to the storage box, and four closing plates are rotatably connected in the ejection pipe, and an elastic second connecting rope is fixedly connected between the closing plate and the inner wall of the ejection pipe.

[0013] Furthermore, two mounting plates are fixedly connected to the top of the base, a guide rod is slidably connected to the mounting plate, a U-shaped bracket is fixedly connected to one end of the guide rod, a sponge roller is rotatably connected to the U-shaped bracket, and a third spring mounted on the outside of the guide rod is fixedly connected between the U-shaped bracket and the mounting plate.

[0014] The technical effects and advantages of the power transformer shell forming and processing equipment of the present invention are as follows:

[0015] (1) Through the pressure-holding assembly and the pressure-holding plate, when it is necessary to hold the pressure of the metal sheet after bending and forming, the metal sheet after bending and forming is placed on the two pressure-holding plates, and the metal sheet to be bent and formed is placed on the first round-shaped plate. The cylinder is started to drive the bending head to move downward, and the bending head drives the third round-shaped plate to move downward. Under the action of gravity, the second round-shaped plate and the first round-shaped plate both move downward, and the first vertical rod is inserted into the base until the bottom of the forming plate contacts the metal sheet on the pressure-holding plate. The bending head continues to move downward, and the bending head can bend the metal sheet on the first round-shaped plate into the two forming plates. During the bending process, a large downward pressure will be generated. The two forming plates can hold the pressure on the metal sheet in the pressure-holding plate under the action of pressure, thereby achieving the purpose of bending and holding pressure at the same time.

[0016] (2) By setting an adjustment component and a rotating component, when it is necessary to adjust the angle between the two forming plates and the two pressure-maintaining plates to adapt to the power transformer housing with different angles, the first motor is started to drive the gear to rotate, and the gear drives the two racks to move in opposite directions at the same time. The rack drives the U-shaped seat to move through the connecting rod and the L-shaped rod, and the U-shaped seat drives the forming plate and the pressure-maintaining plate to move in opposite directions at the same time, so as to achieve the purpose of adjusting the distance between the top ends of the two forming plates and the two pressure-maintaining plates. After the adjustment is completed, the two electromagnets are energized to repel each other, and the electromagnets drive the hexagonal prisms to be inserted into the second hexagonal groove. The second motor is started to drive the second rotating shaft to rotate, and the second rotating shaft drives the third rotating shaft to rotate through the fourth rotating shaft, the sprocket and the chain. The rotation of the second rotating shaft and the third rotating shaft drives the two forming plates and the two pressure-maintaining plates to rotate in opposite directions at the same time through the worm and the worm wheel, and the forming groove and the pressure-maintaining groove are formed in coordination with the distance between the top ends of the two forming plates and the two pressure-maintaining plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of a first partial three-dimensional structure in the present invention;

[0019] Figure 3 It is a schematic diagram of a second partial three-dimensional structure in the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the forming plate and the pressure-maintaining plate in the present invention;

[0021] Figure 5 It is a structural schematic diagram of one end of the forming plate and the pressure-maintaining plate in the present invention;

[0022] Figure 6 For the present invention Figure 3 The enlarged schematic diagram at A in the middle;

[0023] Figure 7 It is a cross-sectional schematic diagram of the second rotating shaft and the fourth rotating shaft in the present invention;

[0024] Figure 8 It is a schematic diagram of a third partial three-dimensional structure in the present invention;

[0025] Fig. 9 It is a schematic diagram of the base structure in the present invention;

[0026] Fig.10 For the present invention Fig. 9 The enlarged schematic diagram of point B in the middle;

[0027] Fig.11 It is a cross-sectional schematic diagram of the discharge pipe in the present invention;

[0028] Fig.12 For the present invention Figure 3 Enlarged schematic diagram at point C in the middle.

[0029] In the figure:

[0030] 1. Fixed frame; 2. Cylinder; 3. Bending head; 4. Forming plate; 5. Base; 6. First vertical rod; 7. First round plate; 8. Second vertical rod; 9. Second round plate; 10. Third round plate; 11. Pressure-maintaining plate; 12. First rotating shaft; 13. U-shaped seat; 14. Rectangular groove; 15. Connecting rod; 16. L-shaped rod; 17. Rack; 18. First motor; 19. Gear; 20. Second motor; 21. Second rotating shaft; 22. Worm; 23. Slide; 24. Slide groove; 25. Sliding seat; 26. Third rotating shaft; 27. Worm wheel; 28. L-shaped plate; 29. ​​Fourth rotating shaft; 30. Sprocket; 31 , chain; 32, first hexagonal groove; 33, first spring; 34, hexagonal column; 35, electromagnet; 36, second hexagonal groove; 37, storage box; 38, connecting pipe; 39, horizontal pipe; 40, ejection pipe; 41, vertical groove; 42, U-shaped plate; 43, second spring; 44, toggle block; 45, baffle; 46, first connecting rope; 47, threaded rod; 48, round plate; 49, rotating rod; 50, moving plate; 51, moving column; 52, squeezing plate; 53, second connecting rope; 54, closing plate; 55, mounting plate; 56, guide rod; 57, U-shaped bracket; 58, sponge roller; 59, third spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Reference Figure 1 - Fig.12 , a power transformer housing forming and processing equipment, comprising a fixed frame 1, a cylinder 2 is installed on the top of the fixed frame 1, a bending head 3 is fixedly connected to the output end of the cylinder 2, and also includes:

[0033] Two forming plates 4 and two pressure-keeping plates 11, the two forming plates 4 and the two pressure-keeping plates 11 are all located directly below the bending head 3, and a forming groove adapted to the bending head 3 is formed between the two forming plates 4, and a pressure-keeping groove adapted to the two forming plates 4 is formed between the two pressure-keeping plates 11. The fixed frame 1 is provided with a pressure-keeping component for maintaining pressure on the metal plate after forming, and the pressure-keeping component maintains pressure by cooperating with the forming plates 4 and the pressure-keeping plates 11. The fixed frame 1 is provided with an adjusting component for adjusting the angle between the two forming plates 4 and the two pressure-keeping plates 11, and the fixed frame 1 is provided with a rotating component for rotating the two forming plates 4 and the two pressure-keeping plates 11 simultaneously;

[0034] When in use, place the metal plate to be bent directly under the bending head 3, start the cylinder 2, and drive the bending head 3 to move downward. The bending head 3 presses the metal plate into the forming groove between the two forming plates 4 to bend the metal plate. The bending head 3 is reset by the cylinder 2 to take out the formed metal plate and place the formed metal plate above the two pressure-keeping plates 11. Place a new metal plate to be bent directly under the bending head 3, and drive the bending head 3 to move downward by the cylinder 2 so that the bending head 3 bends the new metal plate. The two forming plates 4 can cooperate with the two pressure-keeping plates 11 to maintain pressure on the previously formed metal plate. The pressure maintenance can maintain the shape after bending, thereby reducing or eliminating the influence of elastic rebound on dimensional accuracy. The angle between the two forming plates 4 and the two pressure-keeping plates 11 can be adjusted by setting an adjustment component and a rotating component.

[0035] Reference Figure 2The pressure-maintaining assembly includes a base 5 fixedly connected to the bottom of the fixed frame 1, two pressure-maintaining plates 11 are arranged on the base 5, four first vertical rods 6 are slidably inserted on the top of the base 5, and the tops of the four first vertical rods 6 are fixedly connected to the first round-shaped plates 7, two forming plates 4 are arranged on the first round-shaped plates 7, four second vertical rods 8 are fixedly connected to the top of the first round-shaped plates 7, and the tops of the four second vertical rods 8 are fixedly connected to the second round-shaped plates 9, and a third round-shaped plate 10 is fixedly connected to the bending head 3 through a horizontal plate, and the second round-shaped plate 9 is arranged on the top of the third round-shaped plate 10; the metal plate to be bent and formed is placed on the first round-shaped plate 7, and the bent metal plate is placed on the two pressure-maintaining plates 11, start the cylinder 2 to drive the bending head 3 to move downward, the bending head 3 drives the third circular plate 10 to move downward, the second circular plate 9, the second vertical rod 8 and the first circular plate 7 move downward with the third circular plate 10 under the action of gravity, the first circular plate 7 drives the first vertical rod 6 to be inserted into the base 5, and the two forming plates 4 maintain the pressure of the metal plate in the pressure-maintaining groove below. When the first circular plate 7 falls on the base 5, the bending head 3 continues to move downward, and the downward pressure of the bending head 3 can press the metal plate into the forming groove between the two forming plates 4 to bend the metal plate. The bending head 3 applies pressure to the metal plate in the pressure-maintaining groove through the two forming plates 4 to maintain the pressure of the metal plate.

[0036] Reference Figure 2 and Figure 5 The adjustment component includes a first rotating shaft 12 fixedly connected to both ends of the forming plate 4 and the pressure-maintaining plate 11, and a U-shaped seat 13 is rotatably connected between the two corresponding first rotating shafts 12. A rectangular groove 14 is provided on the base 5 and the first round plate 7, and the U-shaped seat 13 slides in the corresponding rectangular groove 14, wherein two of the U-shaped seats 13 are fixedly connected with connecting rods 15, and the other two U-shaped seats 13 are fixedly connected with L-shaped rods 16, and the connecting rods 15 slide through the corresponding L-shaped rods 16, and one end of the connecting rods 15 is fixedly connected with a rack 17, and a first motor 18 is fixedly connected to the base 5, and the output shaft of the first motor 18 is fixedly connected with a gear 19 meshing with the two racks 17; when it is necessary to adjust the two forming plates 4 When the angle between the two pressure-keeping plates 11 is set, the first motor 18 is started, and the first motor 18 drives the gear 19 to rotate. The gear 19 drives the two racks 17 to move in opposite directions. The racks 17 can drive the connecting rods 15 and the L-shaped rods 16 on both sides to move. The connecting rods 15 and the L-shaped rods 16 drive the U-shaped seat 13 to move. The U-shaped seat 13 drives the top ends of the forming plates 4 and the pressure-keeping plates 11 on both sides to move in opposite directions at the same time. After the top ends of the forming plates 4 and the pressure-keeping plates 11 move into place, the two forming plates 4 are rotated in opposite directions around the first rotating shaft 12 at the top at the same time through the rotating assembly, so that the bottom ends of the two forming plates 4 abut against each other, and the angle of the two pressure-keeping plates 11 is kept consistent with the two forming plates 4 through the rotating assembly.

[0037] Reference Figure 3 , Figure 4 , Figure 6 and Figure 7 The rotating assembly includes a second rotating shaft 21 and a third rotating shaft 26 which are rotatably connected to the first circular plate 7 and the base 5 through a fixing plate. A second motor 20 is fixedly connected to the first circular plate 7 through a fixing plate. The output shaft of the second motor 20 is fixedly connected to one end of the second rotating shaft 21. The outer walls of the second rotating shaft 21 and the third rotating shaft 26 are both provided with two worms 22. The thread directions of the worms 22 on both sides are opposite. Two sliding strips 23 are fixedly connected to the inner walls of the worms 22. The outer walls of the second rotating shaft 21 and the third rotating shaft 26 are both provided with sliding strips The slide bar 23 is slidably connected in the slide slot 24. The worm 22 is rotatably connected with a sliding seat 25 slidably connected to the base 5 and the first circular plate 7. The sliding seat 25 is rotatably connected to the corresponding first rotating shaft 12, and one end of the corresponding first rotating shaft 12 is fixedly connected to a worm wheel 27 meshing with the corresponding worm 22. An L-shaped plate 28 is fixedly connected to the base 5 through a fixed plate. A fourth rotating shaft 29 is rotatably connected to the L-shaped plate 28. The outer wall of the fourth rotating shaft 29 and the outer wall of the third rotating shaft 26 are both fixedly connected with a sprocket 30. The sprockets 30 are connected by a chain 31; when the angle between the two forming plates 4 and the two pressure-maintaining plates 11 needs to be adjusted with the adjusting assembly, the second motor 20 is started, the second motor 20 drives the second rotating shaft 21 to rotate, the second rotating shaft 21 can drive the fourth rotating shaft 29 to rotate, the fourth rotating shaft 29 drives the third rotating shaft 26 to rotate through the sprocket 30 and the chain 31, the second rotating shaft 21 and the third rotating shaft 26 can drive the worms 22 on both sides to rotate at the same time, the worm 22 drives the corresponding worm wheel 27 to rotate, and the worm wheel 27 drives the first rotating shaft 12 The top ends of the forming plate 4 and the pressure-holding plate 11 rotate to adjust the angles of the forming plate 4 and the pressure-holding plate 11. When the metal plate in the forming plate 4 is formed, the second motor 20 is started to drive the second rotating shaft 21 to rotate, without the need to drive the third rotating shaft 26 to rotate through the fourth rotating shaft 29. The second rotating shaft 21 can drive the top ends of the two forming plates 4 to rotate, so that the two forming plates 4 are opened, and the bent metal plate falls from the middle of the two forming plates 4 into the pressure-holding groove below, and subsequent pressure-holding operations can be performed. The two forming plates 4 are then reset to continue forming.

[0038] Reference Figure 7The fourth rotating shaft 29 has a first hexagonal groove 32, the inner wall of the first hexagonal groove 32 is fixedly connected to a first spring 33, one end of the first spring 33 is fixedly connected to a hexagonal column 34 slidably inserted in the first hexagonal groove 32, one end of the hexagonal column 34 and the inner wall of the first hexagonal groove 32 are fixedly connected to an electromagnet 35 facing each other, and one end of the second rotating shaft 21 has a second hexagonal groove 36 facing the hexagonal column 34; when the second motor 20 only needs to drive the second rotating shaft 21 to rotate, the hexagonal column 34 is not inserted into the In the second hexagonal groove 36, when the second motor 20 needs to drive the third rotating shaft 26 through the second rotating shaft 21 and the fourth rotating shaft 29, the two electromagnets 35 are energized, and the two electromagnets 35 repel each other. One of the electromagnets 35 drives the hexagonal column 34 to be inserted into the second hexagonal groove 36, and the first spring 33 is stretched. The second rotating shaft 21 can drive the fourth rotating shaft 29 to rotate. When the hexagonal column 34 needs to be retracted, the two electromagnets 35 are de-energized, and under the action of the first spring 33, the hexagonal column 34 retracts into the first hexagonal groove 32.

[0039] Reference Figure 2 and Figure 8 The base 5 is provided with a spray assembly for spraying stress relieving agent toward the bending part of the metal plate, and the spray assembly includes a storage box 37 fixedly connected to the bottom of the base 5, and a side wall of the storage box 37 is connected and fixedly connected with a plurality of connecting pipes 38, and a transverse pipe 39 is fixedly connected to one end of the connecting pipe 38, and a plurality of spray pipes 40 facing the middle of the two pressure-maintaining plates 11 are connected and fixedly connected to the transverse pipe 39; the storage box 37 stores stress relieving agent, and when the metal plate is located in the pressure-maintaining groove for pressure maintenance, the stress relieving agent in the storage box 37 is sprayed out from the spray pipe 40 through the connecting pipe 38 and the transverse pipe 39 and sprayed onto the bending part of the metal plate, and the stress relieving agent can reduce or eliminate the residual stress in the metal.

[0040] Reference Figure 8 , Fig. 9 , Fig.10 and Fig.11The base 5 is provided with four vertical slots 41, and the first vertical rod 6 is slidably inserted in the corresponding vertical slots 41, wherein two of the vertical slots 41 are slidably connected with U-shaped plates 42, and a second spring 43 is fixedly connected between the U-shaped plate 42 and the base 5, and a toggle block 44 is rotatably connected to the U-shaped plate 42, and a baffle 45 in contact with the top of the toggle block 44 is fixedly connected to the U-shaped plate 42, and an elastic first connecting rope 46 is fixedly connected between the top of the toggle block 44 and the top of the U-shaped plate 42, and a threaded rod 47 is rotatably connected to the top of the base 5 through a connecting plate, and a circular plate 48 is fixedly connected to one end of the threaded rod 47. The outer wall of the circular plate 48 is fixedly connected with a plurality of rotating rods 49, and some of the rotating rods 49 are located directly below the toggle block 44. The outer wall of the threaded rod 47 is threadedly connected with a moving plate 50, and the moving plate 50 is fixedly connected with four moving columns 51 that penetrate the storage box 37, and one end of the moving column 51 is fixedly connected with an extrusion plate 52 that is slidably connected to the storage box 37. Four closing pieces 54 are rotatably connected in the ejection pipe 40, and a second elastic connecting rope 53 is fixedly connected between the closing piece 54 and the inner wall of the ejection pipe 40; when it is necessary to maintain the pressure of the metal plate in the pressure-maintaining groove, the two forming plates 4 press the metal plate into the pressure-maintaining groove. At this time, The first vertical rod 6 is inserted into the vertical groove 41, and the first vertical rod 6 will press the U-shaped plate 42 to move downward, the second spring 43 is compressed, the U-shaped plate 42 drives the toggle block 44 to move downward, and the toggle block 44 will toggle the rotating rod 49 and the circular plate 48 to rotate under the obstruction of the baffle 45, the circular plate 48 drives the threaded rod 47 to rotate, the threaded rod 47 drives the moving plate 50 and the moving column 51 to move, and the moving column 51 drives the squeezing plate 52 to move in the storage box 37, so that the squeezing plate 52 squeezes the stress relieving agent, and sprays a proper amount of stress relieving agent from between the four sealing pieces 54 of the ejection pipe 40. When the pressure maintenance is completed, the first vertical rod 6 moves upward to release The U-shaped plate 42 is compressed, and under the action of the second spring 43, the U-shaped plate 42 moves upward, and the U-shaped plate 42 drives the toggle block 44 to move upward, and the toggle block 44 is blocked by the rotating rod 49 and rotates around one end. The first connecting rope 46 is stretched, and the toggle block 44 does not toggle the rotating rod 49. When the toggle block 44 leaves the rotating rod 49, under the action of the first connecting rope 46, the toggle block 44 returns to its original state. When it is necessary to maintain pressure again, the toggle block 44 moves downward and can also drive the threaded rod 47 to rotate, so that the extrusion plate 52 gradually moves in the storage box 37, and each time moves the same distance, thereby controlling the amount of stress relieving agent sprayed each time.

[0041] Reference Figure 3 and Fig.12Two mounting plates 55 are fixedly connected to the top of the base 5, and a guide rod 56 is slidably connected to the mounting plate 55. A U-shaped bracket 57 is fixedly connected to one end of the guide rod 56, and a sponge roller 58 is rotatably connected to the U-shaped bracket 57. A third spring 59 is fixedly connected between the U-shaped bracket 57 and the mounting plate 55 and is sleeved on the outside of the guide rod 56. When the pressure holding is completed, the external driving component can push out the metal plate in the pressure holding groove. During the pushing process, the sponge rollers 58 on both sides contact the bottom end of the metal plate to wipe and absorb the stress relieving agent involved, and the third spring 59 can maintain the pressure of the sponge roller 58 on the metal plate.

[0042] Working principle: when in use, place the metal sheet to be bent directly under the bending head 3, start the cylinder 2, and drive the bending head 3 to move downward. The bending head 3 presses the metal sheet into the forming groove between the two forming plates 4 to bend the metal sheet. The bending head 3 is reset by the cylinder 2 to take out the formed metal sheet and place the formed metal sheet on top of the two pressure-keeping plates 11. Place a new metal sheet to be bent directly under the bending head 3, and drive the bending head 3 to move downward by the cylinder 2 so that the bending head 3 bends the new metal sheet. The two forming plates 4 can cooperate with the two pressure-keeping plates 11 to maintain pressure on the previously formed metal sheet. The pressure-keeping can maintain the shape after bending, thereby reducing or eliminating the influence of elastic rebound on dimensional accuracy. The angle between the two forming plates 4 and the two pressure-keeping plates 11 can be adjusted by setting an adjusting component and a rotating component.

[0043] The metal sheet to be bent is placed above the first round-shaped plate 7, and the bent metal sheet is placed in the pressure holding groove between the two pressure holding plates 11. The cylinder 2 is started to drive the bending head 3 to move downward, and the bending head 3 drives the third round-shaped plate 10 to move downward. The second round-shaped plate 9, the second vertical rod 8 and the first round-shaped plate 7 move downward with the third round-shaped plate 10 under the action of gravity. The first round-shaped plate 7 drives the first vertical rod 6 to be inserted into the base 5, and the two forming plates 4 maintain pressure on the metal sheet in the pressure holding groove below. When the first round-shaped plate 7 falls on the base 5, the bending head 3 continues to move downward, and the downward pressure of the bending head 3 can press the metal sheet into the forming groove between the two forming plates 4 to bend the metal sheet. The bending head 3 applies pressure to the metal sheet in the pressure holding groove through the two forming plates 4 to maintain pressure on the metal sheet.

[0044] When it is necessary to adjust the angle between the two forming plates 4 and the two pressure-keeping plates 11, the first motor 18 is started, and the first motor 18 drives the gear 19 to rotate, and the gear 19 drives the two racks 17 to move in opposite directions, and the racks 17 can drive the connecting rods 15 and the L-shaped rods 16 on both sides to move, and the connecting rods 15 and the L-shaped rods 16 drive the U-shaped seat 13 to move, and the U-shaped seat 13 drives the top ends of the forming plates 4 and the pressure-keeping plates 11 on both sides to move in opposite directions at the same time. After the top ends of the forming plates 4 and the pressure-keeping plates 11 move into place, the two forming plates 4 are rotated in opposite directions around the first rotating shaft 12 at the top ends at the same time through the rotating assembly, so that the bottom ends of the two forming plates 4 abut against each other, and the angles of the two pressure-keeping plates 11 are kept consistent with the two forming plates 4 through the rotating assembly;

[0045] When the angle between the two forming plates 4 and the two pressure-maintaining plates 11 needs to be adjusted with the adjusting assembly, the second motor 20 is started, the second motor 20 drives the second rotating shaft 21 to rotate, the second rotating shaft 21 can drive the fourth rotating shaft 29 to rotate, the fourth rotating shaft 29 drives the third rotating shaft 26 to rotate through the sprocket 30 and the chain 31, the second rotating shaft 21 and the third rotating shaft 26 can drive the worms 22 on both sides to rotate at the same time, the worm 22 drives the corresponding worm wheel 27 to rotate, and the worm wheel 27 drives the forming plates 4 and the pressure-maintaining plates 11 through the first rotating shaft 12 The top end of the two forming plates 4 is rotated to adjust the angle of the forming plate 4 and the pressure holding plate 11. When the metal plate in the forming plate 4 is formed, the second motor 20 is started to drive the second rotating shaft 21 to rotate, without the need to drive the third rotating shaft 26 to rotate through the fourth rotating shaft 29. The second rotating shaft 21 can drive the top ends of the two forming plates 4 to rotate, so that the two forming plates 4 are opened, and the bent metal plate falls from the middle of the two forming plates 4 into the pressure holding groove below, and subsequent pressure holding operations can be performed. The two forming plates 4 are then reset to continue forming;

[0046] When the second motor 20 only needs to drive the second rotating shaft 21 to rotate, the hexagonal column 34 is not inserted into the second hexagonal groove 36. When the second motor 20 needs to drive the third rotating shaft 26 through the second rotating shaft 21 and the fourth rotating shaft 29, the two electromagnets 35 are energized, and the two electromagnets 35 repel each other. One of the electromagnets 35 drives the hexagonal column 34 to be inserted into the second hexagonal groove 36, and the first spring 33 is stretched. The second rotating shaft 21 can drive the fourth rotating shaft 29 to rotate. When the hexagonal column 34 needs to be retracted, the two electromagnets 35 are de-energized, and under the action of the first spring 33, the hexagonal column 34 retracts into the first hexagonal groove 32.

[0047] The storage box 37 stores stress relieving agent. When the metal plate is placed in the pressure-maintaining tank for pressure maintenance, the stress relieving agent in the storage box 37 is sprayed out from the spray pipe 40 through the connecting pipe 38 and the cross pipe 39 and sprayed onto the bending part of the metal plate. The stress relieving agent can reduce or eliminate the residual stress in the metal.

[0048] When it is necessary to maintain the pressure of the metal plate in the pressure-maintaining groove, the two forming plates 4 press the metal plate into the pressure-maintaining groove, and at this time, the first vertical rod 6 is inserted into the vertical groove 41, and the first vertical rod 6 will press the U-shaped plate 42 to move downward, and the second spring 43 is compressed, and the U-shaped plate 42 drives the toggle block 44 to move downward, and the toggle block 44 will toggle the rotating rod 49 and the circular plate 48 to rotate under the obstruction of the baffle 45, and the circular plate 48 drives the threaded rod 47 to rotate, and the threaded rod 47 drives the moving plate 50 and the moving column 51 to move, and the moving column 51 drives the extrusion plate 52 to move in the storage box 37, so that the extrusion plate 52 squeezes the stress relieving agent, and sprays a proper amount of stress relieving agent from between the four closing pieces 54 of the ejection pipe 40. When the pressure maintenance is completed, the first vertical rod 6 moves upward to release the pressure on the U-shaped plate 42. Under the action of the second spring 43, the U-shaped plate 42 moves upward, and the U-shaped plate 42 drives the toggle block 44 to move upward, and the toggle block 44 is blocked by the rotating rod 49 to rotate around one end. The first connecting rope 46 is stretched, and the toggle block 44 will not toggle the rotating rod 49. When the toggle block 44 leaves the rotating rod 49, under the action of the first connecting rope 46, the toggle block 44 returns to its original state. When it is necessary to maintain the pressure again, the toggle block 44 moves downward and can also drive the threaded rod 47 to rotate, so that the extrusion plate 52 gradually moves in the storage box 37, and moves the same distance each time, thereby controlling the amount of stress relieving agent sprayed each time;

[0049] When the pressure holding is completed, the external driving component can push the metal plate out of the pressure holding groove. During the pushing process, the sponge rollers 58 on both sides contact the bottom end of the metal plate to wipe and absorb the stress relieving agent involved. The third spring 59 can maintain the pressure of the sponge roller 58 on the metal plate.

[0050] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0051] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power transformer housing forming and processing device, comprising a fixed frame (1), a cylinder (2) being mounted on the top of the fixed frame (1), a bending head (3) being fixedly connected to the output end of the cylinder (2), characterized in that: Also includes: Two forming plates (4) and two pressure-maintaining plates (11), the two forming plates (4) and the two pressure-maintaining plates (11) are all located directly below the bending head (3), and a forming groove compatible with the bending head (3) is formed between the two forming plates (4), and a pressure-maintaining groove compatible with the two forming plates (4) is formed between the two pressure-maintaining plates (11); the fixed frame (1) is provided with a pressure-maintaining component for maintaining pressure on the metal plate after forming, and the pressure-maintaining component maintains pressure by cooperating with the forming plates (4) and the pressure-maintaining plates (11); the fixed frame (1) is provided with an adjustment component for adjusting the angle between the two forming plates (4) and the two pressure-maintaining plates (11); and the fixed frame (1) is provided with a rotating component for rotating the two forming plates (4) and the two pressure-maintaining plates (11) simultaneously; The pressure-maintaining assembly comprises a base (5) fixedly connected to the bottom of the fixed frame (1), two pressure-maintaining plates (11) are arranged on the base (5), four first vertical rods (6) are slidably inserted on the top of the base (5), the top ends of the four first vertical rods (6) are fixedly connected to a first round-shaped plate (7), two forming plates (4) are arranged on the first round-shaped plate (7), the top of the first round-shaped plate (7) is fixedly connected to four second vertical rods (8), the top ends of the four second vertical rods (8) are fixedly connected to a second round-shaped plate (9), the bending head (3) is fixedly connected to a third round-shaped plate (10) via a horizontal plate, and the second round-shaped plate (9) is arranged on the top of the third round-shaped plate (10); The adjustment assembly comprises a first rotating shaft (12) fixedly connected to both ends of the forming plate (4) and the pressure-maintaining plate (11); a U-shaped seat (13) is rotatably connected between the two corresponding first rotating shafts (12); a rectangular groove (14) is provided on the base (5) and the first round plate (7); the U-shaped seat (13) slides in the corresponding rectangular groove (14); two of the U-shaped seats (13) are fixedly connected to connecting rods (15); the other two U-shaped seats (13) are fixedly connected to L-shaped rods (16); the connecting rods (15) slide through the corresponding L-shaped rods (16); one end of the connecting rods (15) is fixedly connected to a rack (17); a first motor (18) is fixedly connected to the base (5); the output shaft of the first motor (18) is fixedly connected to a gear (19) meshing with the two racks (17); The rotating assembly comprises a second rotating shaft (21) and a third rotating shaft (26) which are rotatably connected to the first circular plate (7) and the base (5) via a fixing plate; a second motor (20) is fixedly connected to the first circular plate (7) via the fixing plate; an output shaft of the second motor (20) is fixedly connected to one end of the second rotating shaft (21); two worms (22) are arranged on the outer walls of the second rotating shaft (21) and the third rotating shaft (26); the thread directions of the worms (22) on both sides are opposite; two slide bars (23) are fixedly connected to the inner walls of the worms (22); and slide grooves (24) are arranged on the outer walls of the second rotating shaft (21) and the third rotating shaft (26); the slide bars (23) slide Connected in the slide groove (24), the worm (22) is rotatably connected to a sliding seat (25) slidably connected to the base (5) and the first circular plate (7), the sliding seat (25) is rotatably connected to the corresponding first rotating shaft (12), one end of the corresponding first rotating shaft (12) is fixedly connected to a worm wheel (27) meshing with the corresponding worm (22), the base (5) is fixedly connected to an L-shaped plate (28) via a fixing plate, the L-shaped plate (28) is rotatably connected to a fourth rotating shaft (29), the outer wall of the fourth rotating shaft (29) and the outer wall of the third rotating shaft (26) are both fixedly connected to sprockets (30), and the two sprockets (30) are connected by a chain (31) for transmission.

2. The power transformer housing forming and processing equipment according to claim 1, characterized in that: A first hexagonal groove (32) is formed in the fourth rotating shaft (29); a first spring (33) is fixedly connected to the inner wall of the first hexagonal groove (32); one end of the first spring (33) is fixedly connected to a hexagonal column (34) slidably inserted in the first hexagonal groove (32); one end of the hexagonal column (34) and the inner wall of the first hexagonal groove (32) are fixedly connected to an electromagnet (35) facing each other; and one end of the second rotating shaft (21) is formed with a second hexagonal groove (36) facing the hexagonal column (34).

3. The power transformer housing forming and processing equipment according to claim 2, characterized in that: The base (5) is provided with a spray assembly for spraying a stress relieving agent toward the bending part of the metal plate, and the spray assembly includes a storage box (37) fixedly connected to the bottom of the base (5), a side wall of the storage box (37) is connected and fixedly connected to a plurality of connecting pipes (38), one end of the connecting pipe (38) is fixedly connected to a transverse pipe (39), and the transverse pipe (39) is connected and fixedly connected to a plurality of spray pipes (40) facing the middle of the two pressure-maintaining plates (11).

4. The power transformer housing forming and processing equipment according to claim 3 is characterized in that: The base (5) is provided with four vertical slots (41), the first vertical rods (6) are slidably inserted in the corresponding vertical slots (41), two of the vertical slots (41) are slidably connected with U-shaped plates (42), a second spring (43) is fixedly connected between the U-shaped plate (42) and the base (5), a toggle block (44) is rotatably connected to the U-shaped plate (42), a baffle (45) contacting the top of the toggle block (44) is fixedly connected to the U-shaped plate (42), an elastic first connecting rope (46) is fixedly connected between the top of the toggle block (44) and the top of the U-shaped plate (42), the top of the base (5) is rotatably connected with a threaded rod (47) via a connecting plate, the A circular plate (48) is fixedly connected to one end of the threaded rod (47), a plurality of rotating rods (49) are fixedly connected to the outer wall of the circular plate (48), some of the rotating rods (49) are located directly below the toggle block (44), a movable plate (50) is threadedly connected to the outer wall of the threaded rod (47), four movable columns (51) penetrating the storage box (37) are fixedly connected to the movable plate (50), one end of the movable column (51) is fixedly connected to an extrusion plate (52) slidably connected to the storage box (37), four closing plates (54) are rotatably connected to the inside of the ejection pipe (40), and a second elastic connecting rope (53) is fixedly connected between the closing plate (54) and the inner wall of the ejection pipe (40).

5. The power transformer housing forming and processing equipment according to claim 4, characterized in that: Two mounting plates (55) are fixedly connected to the top of the base (5), a guide rod (56) is slidably connected to the mounting plate (55), a U-shaped bracket (57) is fixedly connected to one end of the guide rod (56), a sponge roller (58) is rotatably connected to the U-shaped bracket (57), and a third spring (59) sleeved on the outside of the guide rod (56) is fixedly connected between the U-shaped bracket (57) and the mounting plate (55).

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