Stamping device for transformer shell production

Abstract

The invention discloses a stamping device for transformer shell production, and relates to the technical field of transformer machining. The punching machine comprises a punching machine body, a punching table, a hydraulic cylinder, an upper die base and a lower die base, the punching table is fixedly installed on the lower end face of a working cavity of the punching machine body, the hydraulic cylinder is fixedly installed on the upper end face of the working cavity of the punching machine body, the piston end of the hydraulic cylinder is fixedly connected with the upper surface of the upper die base, and the lower die base is arranged at one end of the punching table; according to the automatic feeding device, an upper clamping roller and a lower clamping roller in the feeding mechanism are driven to move horizontally, the stainless steel plate is pulled to the position below the upper die base when the upper clamping roller and the lower clamping roller clamp the stainless steel plate, and meanwhile a rotating base in the station control mechanism is driven to rotate by 180 degrees; and the rotating base enables the lower die base to vertically correspond to the upper die base through the connecting base, so that automatic feeding in the stamping machining process of the transformer shell is conveniently achieved, and then the stamping machining efficiency of the transformer shell is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of transformer processing, in particular to a stamping device for producing transformer shells. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil and iron core (magnetic core). Its main functions include: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc.

[0003] Transformers are generally composed of iron core, winding, insulation material, oil tank, cooler, protection device, wiring cabinet and shell, among which the shell of transformer is generally formed by stamping;

[0004] However, the punching device in the prior art still has some defects when punching the transformer housing:

[0005] 1. When the stamping device in the prior art performs stamping processing on the transformer housing, it is usually inconvenient to automatically feed the rolled stainless steel sheet (the raw material for stamping the transformer housing) into the die base during the stamping process for the stamping device to perform stamping processing, which results in low efficiency of the transformer housing stamping processing;

[0006] 2. At the same time, when the stamping device in the prior art is stamping the transformer housing, as the upper die and the lower die are separated, the stamping operator generally manually takes out the molded transformer housing in the lower die. Since the operator works in the stamping area of ​​the stamping device, improper operation may easily cause hand injuries to the operator.

[0007] In view of the above problems, the inventor proposes a stamping device for transformer housing production to solve the above problems. Summary of the invention

[0008] In order to solve the problem that the stamping device in the prior art is inconvenient to automatically feed the stainless steel plate, resulting in low stamping efficiency of the transformer shell; the purpose of the present invention is to provide a stamping device for the production of transformer shell.

[0009] To solve the above technical problems, the present invention adopts the following technical scheme: a stamping device for transformer casing production, comprising a stamping machine body, a stamping table, a hydraulic cylinder, an upper die seat and a lower die seat, the stamping table is fixedly mounted on the lower end surface of the working chamber of the stamping machine body, the hydraulic cylinder is fixedly mounted on the upper end surface of the working chamber of the stamping machine body, the piston end of the hydraulic cylinder is fixedly connected to the upper surface of the upper die seat, the lower die seat is arranged at one end of the stamping table, a frame plate is fixedly mounted on the end of the stamping table away from the lower die seat, a unwinding roller is rotatably mounted on the end of the frame plate away from the stamping table, two guide rollers are rotatably mounted on the end of the frame plate close to the stamping table, a feeding mechanism is provided at the end of the stamping table close to the frame plate, a cutting mechanism is also provided at the end of the stamping table close to the frame plate, and a station control mechanism is provided at the end of the stamping table away from the frame plate.

[0010] Preferably, the feeding mechanism includes two side plates, a lower clamping roller is fixedly installed between the two side plates, an upper clamping roller is provided between the two side plates, the upper clamping roller is vertically corresponding to the lower clamping roller, two first rotating shafts are rotatably installed on both sides of the stamping table, one end of the four first rotating shafts is fixedly installed with a first transmission wheel, a first transmission belt is transmission-installed between two adjacent first transmission wheels, one end of the two first transmission belts is fixedly installed with a driving rod, and a circular groove is opened on one side of the two side plates, and one of the driving rods is movably contacted with one end away from the first transmission belt and the inner wall of a circular groove.

[0011] Preferably, a first rotating rod is rotatably installed on the lower surface of the stamping table, a first gear is fixedly installed on one end of the first rotating rod, first synchronous wheels are fixedly installed on both ends of the first rotating rod and the other ends of two of the first rotating shafts, and a first synchronous belt is installed for transmission between two adjacent first synchronous wheels.

[0012] Preferably, the feeding mechanism also includes two movable plates, two push plates and two U-shaped guide plates, the two U-shaped guide plates are fixedly mounted on the upper surface of the stamping table and distributed on both sides of the stamping table, the upper clamping roller and the lower clamping roller are located between the two U-shaped guide plates, both sides of the two movable plates are provided with a first inclined surface, the two push plates are fixedly mounted on the upper surface of the stamping table and distributed on both sides of the stamping table, and both sides of the two push plates are provided with a second inclined surface.

[0013] Preferably, a sliding groove is provided on the opposite sides of the two side plates, and a slider is slidably installed on the inner walls of the two sliding grooves, and a first connecting rod is fixedly installed on the opposite sides of the two sliders, and one end of the first connecting rod away from the slider is fixedly connected to one end of the movable plate, and a second connecting rod is fixedly installed on one end of the two movable plates, and one end of the second connecting rod away from the movable plate is fixedly connected to one end of the upper clamping roller, and a spring rod is fixedly installed on one end of the two sliding grooves, and one end of the spring rod is fixedly connected to the lower surface of the slider.

[0014] Preferably, the cutting mechanism includes a cutting machine body, a notch is provided on the punching table, a fixing ring is provided at one end of the notch, a fixing rod is fixedly installed at the center position of the fixing ring, one end of the fixing rod away from the fixing ring is fixedly connected to the bottom end of the cutting machine body, two second rotating shafts are rotatably installed below the notch, a second transmission wheel is fixedly installed at one end of the two second rotating shafts, a second transmission belt is installed for transmission between the two second transmission wheels, two L-shaped moving rods are fixedly installed at one end of the second transmission belt, a circular guide rail is fixedly installed on the lower surface of the fixing ring, and the circular guide rail Two arc blocks are installed on the upper sliding, one end of the L-shaped moving rod away from the second transmission belt is fixedly connected to the lower surface of the arc block, a second rotating rod is rotatably installed on the lower surface of the punching table, one end of the second rotating rod is fixedly installed with a second gear, a first transmission rod is rotatably installed on the lower surface of the punching table, one end of the second rotating rod and one end of the first transmission rod are both fixedly installed with a second synchronous wheel, a second synchronous belt is installed for transmission between the two second synchronous wheels, the other end of the first transmission rod and the other end of one of the second rotating shafts are fixed with a first bevel gear, and the two first bevel gears are meshed with each other.

[0015] Preferably, the work station control mechanism includes a rotating seat, a connecting block is fixedly installed on one side of the rotating seat, and the connecting block is fixedly connected to the side of the lower mold seat away from the rotating seat, and a third rotating shaft is rotatably installed on the stamping table, one end of the third rotating shaft is fixedly connected to the lower surface of the rotating seat, and a second transmission rod is rotatably installed on the lower surface of the stamping table, one end of the second transmission rod and one end of the third rotating shaft away from the rotating seat are both fixedly installed with a second bevel gear, and the two second bevel gears are meshed with each other, and a third rotating rod is rotatably installed on the lower surface of the stamping table, and a third gear is fixedly installed on one end of the third rotating rod, and a third synchronous wheel is fixedly installed on one end of the third rotating rod and the other end of the second transmission rod, and a third synchronous belt is installed for transmission between the two third synchronous wheels.

[0016] Preferably, a servo motor is fixedly installed on the lower surface of the stamping table, a rotating shaft is fixedly installed on the driving output end of the servo motor, a fan gear is fixedly installed on the end of the rotating shaft away from the servo motor, the fan gear is meshingly connected with the first gear, the fan gear is horizontally corresponding to the second gear, and the fan gear is meshingly connected with the third gear.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, by driving the upper clamping roller and the lower clamping roller in the feeding mechanism to move horizontally, the upper clamping roller and the lower clamping roller are lowered in a state of clamping the stainless steel plate, and the stainless steel plate is pulled to the bottom of the upper die seat. At the same time, by driving the rotating seat in the station control mechanism to rotate 180 degrees, the rotating seat makes the lower die seat correspond vertically to the upper die seat through the connecting seat, thereby conveniently realizing the automatic feeding in the process of transformer shell stamping, thereby effectively improving the efficiency of transformer shell stamping;

[0019] 2. In the present invention, after the feeding is completed, the cutting machine body in the cutting mechanism is driven to reciprocate horizontally, and the cutting machine body cuts the stainless steel plate along the edge of the lower die seat during the reciprocating horizontal movement, thereby conveniently realizing the automatic cutting of the stainless steel plate during the stamping process of the transformer shell, ensuring the normal feeding of the next time, and further improving the efficiency of the stamping process of the transformer shell;

[0020] 3. In the present invention, the lower die base is driven by the workstation control mechanism to intermittently rotate 180 degrees, so that the lower die base and the upper die base are staggered after the stamping is completed, so that the stamping operator can take out the transformer housing in the lower die base. Compared with the existing technology, the transformer housing is directly taken out from under the upper die base, which avoids injuries to the stamping operator due to improper operation during the stamping of the stamping machine body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 The figure is a schematic diagram of the overall structure of a stamping device for producing a transformer casing according to the present invention.

[0023] Figure 2 Another schematic diagram of the overall structure of a stamping device for producing a transformer casing according to the present invention.

[0024] Figure 3It is a connection diagram of the feeding mechanism, the cutting mechanism and the station control mechanism of the present invention.

[0025] Figure 4 For the present invention Figure 3 A magnified schematic diagram of part A in FIG.

[0026] Figure 5 It is a schematic diagram of the cross-sectional structure of the connection and side panels of the feeding mechanism of the present invention.

[0027] Figure 6 For the present invention Figure 5 An enlarged schematic diagram of part B in FIG.

[0028] Figure 7 It is a connection schematic diagram of the cutting mechanism of the present invention.

[0029] Figure 8 It is a schematic diagram of the cutaway structure of the fixing ring of the present invention.

[0030] Fig. 9 It is a schematic diagram of the connection between the lower die base and the station control mechanism of the present invention.

[0031] In the figure: 1, punching machine body; 11, hydraulic cylinder; 12, upper die seat; 13, lower die seat; 2, punching table; 21, frame plate; 22, unwinding roller; 23, guide roller; 3, feeding mechanism; 31, side plate; 32, lower clamping roller; 33, upper clamping roller; 34, first guide groove; 35, first guide block; 36, first rotating shaft; 37, first transmission wheel; 38, first transmission belt; 39, driving rod; 4, circular groove; 41, first rotating rod; 42, first gear; 43, first synchronous wheel; 44, first synchronous belt; 45, movable plate; 46, first inclined surface; 47, pushing plate; 48, second inclined surface; 49, slide groove; 5, slider; 51, first connecting rod; 52, second connecting rod; 53, spring rod; 54, U-shaped guide plate; 6, cutting Mechanism; 61, cutting machine body; 62, notch; 63, fixing ring; 64, fixing rod; 65, second guide groove; 66, second guide block; 67, second rotating shaft; 68, second transmission wheel; 69, second transmission belt; 7, L-shaped moving rod; 71, circular guide rail; 72, arc block; 73, second rotating rod; 74, second gear; 75, first transmission rod; 76, second synchronous wheel; 77, second synchronous belt; 78, first bevel gear; 8, station control mechanism; 81, rotating seat; 82, connecting block; 83, third rotating shaft; 84, second transmission rod; 85, second bevel gear; 86, third rotating rod; 87, third gear; 88, third synchronous wheel; 89, third synchronous belt; 9, servo motor; 91, rotating shaft; 92, fan gear. DETAILED DESCRIPTION

[0032] 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.

[0033] Example: Figure 1-9As shown, the present invention provides a stamping device for transformer shell production, including a stamping machine body 1, a stamping table 2, a hydraulic cylinder 11, an upper die seat 12 and a lower die seat 13, the stamping table 2 is fixedly installed on the lower end surface of the working chamber of the stamping machine body 1, the hydraulic cylinder 11 is fixedly installed on the upper end surface of the working chamber of the stamping machine body 1, the piston end of the hydraulic cylinder 11 is fixedly connected to the upper surface of the upper die seat 12, the lower die seat 13 is arranged at one end of the stamping table 2, the end of the stamping table 2 away from the lower die seat 13 is fixedly installed with a frame plate 21, the end of the frame plate 21 away from the stamping table 2 is rotatably installed with a reeling roller 22, and the end of the frame plate 21 close to the stamping table 2 is rotatably installed with a reeling roller 22. There are two guide rollers 23, a feeding mechanism 3 is provided at one end of the punching table 2 close to the frame plate 21, a cutting mechanism 6 is also provided at one end of the punching table 2 close to the frame plate 21, and a station control mechanism 8 is provided at one end of the punching table 2 away from the frame plate 21. In the preparation process of transformer shell production, when the lower die seat 13 is located below the upper die seat 12, with the action of the hydraulic cylinder 11, the hydraulic cylinder 11 pushes the upper die seat 12 to descend vertically, and the die body of the upper die seat 12 enters the die cavity of the lower die seat 13, and the stainless steel sheet is punched into a transformer shell. This is a prior art and will not be described in detail here. By setting the unwinding roller 22, the rolled stainless steel for the transformer shell is punched. The plate can be put on the unwinding roller 22. When the external driving source of the unwinding roller 22 is working, the unwinding roller 22 rotates to realize the winding and unwinding of the rolled stainless steel plate. This is the prior art and will not be described in detail here. By setting two guide rollers 23, when one end of the stainless steel plate passes through between the two guide rollers 23, the two guide rollers 23 guide the stainless steel plate so that the stainless steel plate can keep moving horizontally during the unwinding process. By setting a feeding mechanism 3, the feeding mechanism 3 can pull one end of the stainless steel plate and pull the stainless steel plate onto the lower die seat 13, thereby realizing automatic feeding during the stamping process of the transformer shell and improving the transformer shell. The efficiency of the stamping process is improved by setting a cutting mechanism 6, which can cut off the stainless steel plate pulled onto the lower die seat 13, and further improve the efficiency of the stamping process of the transformer casing. By setting a workstation control mechanism 8, the workstation control mechanism 8 can enable the lower die seat 13 to enter the working chamber of the stamping machine body 1 for the stamping of the stainless steel plate. After the stamping is completed, the workstation control mechanism 8 can separate the lower die seat 13 from the working chamber of the stamping machine body 1, so that the stamping operator can take out the formed transformer casing in an environment outside the working chamber of the stamping machine body 1, thereby avoiding injuries to the stamping operator due to improper operation during the stamping of the stamping machine body 1.

[0034] The feeding mechanism 3 includes two side plates 31, a lower clamping roller 32 is fixedly installed between the two side plates 31, an upper clamping roller 33 is provided between the two side plates 31, and the upper clamping roller 33 corresponds vertically to the lower clamping roller 32. Two first rotating shafts 36 are rotatably installed on both sides of the punching table 2, and one end of the four first rotating shafts 36 is fixedly installed with a first transmission wheel 37, and a first transmission belt 38 is transmission-installed between two adjacent first transmission wheels 37, and one end of the two first transmission belts 38 is fixedly installed with a driving rod 39. A circular groove 4 is opened on one side of the two side plates 31, and one end of one driving rod 39 is away from the first transmission belt 38 and is in active contact with the inner wall of the circular groove 4. By setting the side plates 31, the upper clamping roller 33 and the lower clamping roller 32, the stainless steel plate passing through the two guide rollers 23 enters between the upper clamping roller 33 and the lower clamping roller 32 During this process, the unwinding roller 22 unwinds and drives the first rotating shaft 36 to rotate. The first rotating shaft 36 transmits the first transmission belt 38 through the first transmission wheel 37. The first transmission belt 38 transmits the side plate 31 reciprocatingly horizontally through the driving rod 39 and the circular groove 4. It should be noted that when the driving rod 39 is at the end of the first transmission belt 38, one end of the driving rod 39 flips with the axis of the first transmission wheel 37 as the center of the circle, and the other end of the driving rod 39 moves in the circular groove 4, thereby realizing the reciprocating horizontal movement of the side plate 31.

[0035] Two first guide grooves 34 are provided on the upper surface of the punching table 2, and first guide blocks 35 are fixedly installed at the bottom ends of the two side plates 31. The first guide blocks 35 are slidably installed at one end of the first guide grooves 34. By setting the first guide grooves 34 and the first guide blocks 35, the first guide blocks 35 guide the side plates 31 in the horizontal direction, so that the side plates 31 maintain horizontal movement and improve the stability of the side plates 31, the upper clamping rollers 33 and the lower clamping rollers 32.

[0036] A first rotating rod 41 is rotatably installed on the lower surface of the stamping table 2, and a first gear 42 is fixedly installed on one end of the first rotating rod 41. First synchronous wheels 43 are fixedly installed on both ends of the first rotating rod 41 and the other ends of two of the first rotating shafts 36. A first synchronous belt 44 is installed for transmission between two adjacent first synchronous wheels 43. By driving the first gear 42 to rotate, the first gear 42 can rotate the first rotating rod 41. The first rotating rod 41 can maintain synchronous and unidirectional rotation of the four first rotating shafts 36 through four first synchronous wheels 43 and two first synchronous belts 44, thereby making the two first transmission belts 38 transmit synchronously and unidirectionally.

[0037] The feeding mechanism 3 also includes two movable plates 45, two push plates 47 and two U-shaped guide plates 54. The two U-shaped guide plates 54 are fixedly mounted on the upper surface of the punching table 2 and are distributed on both sides of the punching table 2. The upper clamping roller 33 and the lower clamping roller 32 are located between the two U-shaped guide plates 54. The two movable plates 45 are provided with first inclined surfaces 46 on both sides. The two push plates 47 are fixedly mounted on the upper surface of the punching table 2 and are distributed on both sides of the punching table 2. The two push plates 47 are provided with second inclined surfaces 48 on both sides. By arranging the movable plate 45, the first inclined surface 46, the push plate 47 and the second inclined surface 48, when the side plate 31 moves horizontally toward the punching machine body 1, the movable plate 45 moves synchronously, and the first inclined surface 46 and the second inclined surface 48 are connected. During the contact of the two inclined surfaces 48, the pushing plate 47 makes the movable plate 45 rise vertically through the second inclined surface 48 and the first inclined surface 46, so that the upper clamping roller 33 can rise synchronously, and the rise of the upper clamping roller 33 is separated from the upper surface of the stainless steel plate, and the clamping force disappears. During the disappearance of the clamping force, the hydraulic cylinder 11 pushes the upper die seat 12 to vertically descend, and the stainless steel plate on the lower die seat 13 is stamped to avoid affecting the stamping of the stainless steel plate due to clamping the end of the stainless steel plate. By setting two U-shaped guide plates 54, before feeding, the stainless steel plate passing through the upper clamping roller 33 and the lower clamping roller 32 is laid forward along the two U-shaped guide plates 54, thereby improving the stability of the stainless steel plate after unwinding and spreading.

[0038] The opposite sides of the two side plates 31 are provided with slide grooves 49, and the inner walls of the two slide grooves 49 are slidably installed with sliders 5, and the opposite sides of the two sliders 5 are fixedly installed with first connecting rods 51, and the end of the first connecting rod 51 away from the slider 5 is fixedly connected to one end of the movable plate 45, and the second connecting rod 52 is fixedly installed at one end of the two movable plates 45, and the end of the second connecting rod 52 away from the movable plate 45 is fixedly connected to one end of the upper clamping roller 33, and the spring rod 53 is fixedly installed at one end of the two slide grooves 49, and one end of the spring rod 53 is fixedly connected to the lower surface of the slider 5. By setting the slide grooves 4 9. Slider 5, first connecting rod 51, second connecting rod 52 and spring rod 53. When the movable plate 45 rises vertically, the movable plate 45 makes the slider 5 slide upward through the first connecting rod 51. The slider 5 pulls the spring rod 53. The spring rod 53 stretches. The movable plate 45 can make the upper clamping roller 33 rise synchronously through the second connecting rod 52. When the movable plate 45 is separated from the push plate 47, the spring rod 53 contracts and resets. The spring rod 53 pulls the upper clamping roller 33 vertically down and resets through the slider 5, the first connecting rod 51, the movable plate 45 and the second connecting rod 52, thereby clamping one end of the stainless steel plate.

[0039] The cutting mechanism 6 includes a cutting machine body 61, a notch 62 is provided on the punching table 2, a fixing ring 63 is provided at one end of the notch 62, a fixing rod 64 is fixedly installed at the center of the fixing ring 63, and the fixing rod 64 is fixedly connected to the bottom end of the cutting machine body 61 at one end away from the fixing ring 63. Two second rotating shafts 67 are rotatably installed below the notch 62, and second transmission wheels 68 are fixedly installed at one end of the two second rotating shafts 67. A second transmission belt 69 is installed between the two second transmission wheels 68 for transmission, and two L-shaped moving rods 7 are fixedly installed at one end of the second transmission belt 69. The lower surface of the fixing ring 63 A circular guide rail 71 is fixedly installed on the surface, and two arc blocks 72 are slidably installed on the circular guide rail 71. One end of the L-shaped moving rod 7 away from the second transmission belt 69 is fixedly connected to the lower surface of the arc block 72. A second rotating rod 73 is rotatably installed on the lower surface of the punching table 2, and a second gear 74 is fixedly installed on one end of the second rotating rod 73. A first transmission rod 75 is rotatably installed on the lower surface of the punching table 2, and a second synchronous wheel 76 is fixedly installed on one end of the second rotating rod 73 and one end of the first transmission rod 75. A second synchronous belt 77 is installed for transmission between the two second synchronous wheels 76. The other end of the first transmission rod 75 The first bevel gear 78 is fixed to one end and the other end of one of the second rotating shafts 67. The two first bevel gears 78 are meshed with each other. By driving the fixing ring 63 to move back and forth horizontally, the fixing ring 63 can make the cutting machine body 61 move back and forth horizontally on the notch 62 through the fixing rod 64. During the reciprocating horizontal movement of the cutting machine body 61, the stainless steel plate is cut along the edge of the lower die seat 13. By driving the second gear 74 to rotate, the second gear 74 can make the second rotating rod 73 rotate, and the second rotating rod 73 can make the first transmission rod 76 and the second synchronous belt 77 rotate. 75 rotates, the first transmission rod 75 can rotate a second rotating shaft 67 through two first bevel gears 78, the two second rotating shafts 67 can transmit the second transmission belt 69 through two second transmission wheels 68, and the second transmission belt 69 can make the fixed ring 63 reciprocate horizontally through the L-shaped moving rod 7, the arc block 72 and the circular guide rail 71. By setting the arc block 72 and the circular guide rail 71, when the L-shaped moving rod 7 is at the end of the second transmission belt 69, the L-shaped moving rod 7 pushes the arc block 72 to slide in a circle on the circular guide rail 71 to achieve side switching, thereby ensuring that the cutting machine body 61 can reciprocate horizontally.

[0040] Second guide grooves 65 are formed on both sides of the notch 62 , and second guide blocks 66 are fixedly mounted on both sides of the fixing ring 63 . The second guide block 66 is slidably mounted at one end of the second guide groove 65 .

[0041] The station control mechanism 8 includes a rotating seat 81, a connecting block 82 is fixedly installed on one side of the rotating seat 81, and the side of the connecting block 82 away from the rotating seat 81 is fixedly connected to the side of the lower die seat 13. A third rotating shaft 83 is rotatably installed on the punching table 2, and one end of the third rotating shaft 83 is fixedly connected to the lower surface of the rotating seat 81. A second transmission rod 84 is rotatably installed on the lower surface of the punching table 2, and one end of the second transmission rod 84 and one end of the third rotating shaft 83 away from the rotating seat 81 are both fixedly installed with a second bevel gear 85, and the two second bevel gears 85 are meshed with each other. A third rotating rod 86 is rotatably installed on the lower surface of the punching table 2, and one end of the third rotating rod 86 is fixedly installed with a third gear 87 A third synchronous wheel 88 is fixedly installed on one end of the third rotating rod 86 and the other end of the second transmission rod 84, and a third synchronous belt 89 is installed between the two third synchronous wheels 88. By driving the third rotating shaft 83 to rotate, the third rotating shaft 83 can make the lower mold base 13 revolve around the axis of the rotating seat 81 as the center of a circle through the rotating seat 81 and the connecting block 82. When the rotating seat 81 rotates one hundred and eighty degrees, the lower mold base 13 and the upper mold base 12 are in a vertical corresponding state. By driving the third gear 87 to rotate, the third gear 87 can make the third rotating rod 86 rotate, and the third rotating rod 86 can make the second transmission rod 84 rotate through two third synchronous wheels 88 and the third synchronous belt 89.

[0042] A servo motor 9 is fixedly installed on the lower surface of the punching table 2, and a rotating shaft 91 is fixedly installed on the driving output end of the servo motor 9. A fan gear 92 is fixedly installed on the end of the rotating shaft 91 away from the servo motor 9. The fan gear 92 is meshed and connected with the first gear 42, and the fan gear 92 corresponds horizontally to the second gear 74. The fan gear 92 is meshed and connected with the third gear 87. By turning on the servo motor 9, the driving shaft of the servo motor 9 can rotate the fan gear 92 through the rotating shaft 91. The fan gear 92 drives the first gear 42 to rotate, and during the meshing period, the upper clamping roller 33 and the lower clamping roller 32 are driven to move horizontally for a single stroke. During this period, the fan gear 92 drives the third gear 87 to rotate, and during the meshing period, the rotating seat 81 is driven to rotate one hundred and eighty degrees. After the fan gear 92 disengages from the first gear 42, it meshes with the second gear 74 and drives the second gear 74 to rotate. During the meshing period, the cutting machine body 61 is driven to move reciprocatingly horizontally for one cycle.

[0043] Working principle: When it is necessary to stamp the stainless steel sheet into a transformer shell, the stamping operator first puts the rolled stainless steel sheet on the unwinding roller 22, then turns on the external driving source of the unwinding roller 22 to rotate the unwinding roller 22 to unwind the rolled stainless steel sheet, and then manually pulls one end of the stainless steel sheet to pass through between the two guide rollers 23, and spreads the end of the stainless steel sheet along the inner walls of the two U-shaped guide plates 54, and then pulls the upper clamping roller 33 upwards, and the upper clamping roller 33 passes through the second connecting rod 52, the movable plate 45, and the first connecting rod 51. The slider 5 is made to slide upward in the slide groove 49, and the slider 5 pulls the spring rod 53, and the spring rod 53 stretches. At this time, one end of the stainless steel plate passes between the upper clamping roller 33 and the lower clamping roller 32, and completely passes through the two U-shaped guide plates 54. Then, the external drive source of the unwinding roller 22 is turned off, and the upper clamping roller 33 is released. The spring rod 53 shrinks and resets. The spring rod 53 makes the upper clamping roller 33 drop vertically through the slider 5, the first connecting rod 51, the movable plate 45 and the second connecting rod 52. At this time, the downward pressure of the upper clamping roller 33 cooperates with the action of the lower clamping roller 32 to clamp the unwinding and spread part of the stainless steel plate;

[0044] Subsequently, the operator turns on the servo motor 9 and the external driving source of the unwinding roller 22, so that the unwinding roller 22 is in a slow unwinding state. The driving shaft of the servo motor 9 rotates the fan gear 92 through the rotating shaft 91, and the fan gear 92 drives the first gear 42 to rotate. The first gear 42 rotates the first rotating rod 41, and the first rotating rod 41 keeps synchronous rotation in the same direction through four first synchronous wheels 43 and two first synchronous belts 44. At this time, the two first transmission belts 38 transmit synchronously in the same direction. The two first transmission belts 38 move the two side plates 31 horizontally toward one side of the punching machine body 1 through two driving rods 39 and two circular grooves 4. The upper clamping roller 33 and the lower clamping roller 32 between the two side plates 31 pull the stainless steel plate, and pull the stainless steel plate laid flat between the two U-shaped guide plates 54 to the bottom of the upper die seat 12;

[0045] When the first inclined surfaces 46 of the two movable plates 45 contact the second inclined surfaces 48 of the two push plates 47, the two movable plates 45 are vertically raised by the second inclined surfaces 48, and the two movable plates 45 make the upper clamping roller 33 vertically raised through the two second connecting rods 52. At this time, the upper clamping roller 33 is separated from the upper surface of the stainless steel plate and the clamping is released. At the same time, the sector gear 92 is separated from the first gear 42, and the upper clamping roller 33 and the lower clamping roller 32 stop moving horizontally.

[0046] In the process of the sector gear 92 driving the first gear 42 to rotate, the sector gear 92 drives the third gear 87 to rotate, the third gear 87 rotates the third rotating rod 86, the third rotating rod 86 rotates the second transmission rod 84 through two third synchronous wheels 88 and the third synchronous belt 89, the second transmission rod 84 rotates the third rotating shaft 83 through two second bevel gears 85, the third rotating shaft 83 rotates the rotating seat 81, the rotating seat 81 rotates the lower die seat 13 180 degrees around the axis of the rotating seat 81 through the connecting block 82, at this time, the sector gear 92 is disengaged from the third gear 87, the lower die seat 13 is vertically corresponding to the upper die seat 12, thereby conveniently realizing the automatic feeding in the process of transformer shell stamping, thereby effectively improving the efficiency of transformer shell stamping;

[0047] As the sector gear 92 is disengaged from the first gear 42, the sector gear 92 meshes with the second gear 74 and drives the second gear 74 to rotate. The second gear 74 rotates the second rotating rod 73. The second rotating rod 73 rotates the first transmission rod 75 through the two second synchronous wheels 76 and the second synchronous belt 77. The first transmission rod 75 rotates the corresponding second rotating shaft 67 through the two first bevel gears 78. At this time, the two second rotating shafts 67 transmit the second transmission belt 69 through the two second transmission wheels 68. The second transmission belt 69 passes through the two L-shaped moving rods 7, the two arc blocks 72, the circular guide rail 71, and the fixing ring 6 3 and the fixing rod 64 make the cutting machine body 61 reciprocate horizontally. As the cutting wheel of the cutting machine body 61 contacts the stainless steel plate, the cutting machine body 61 cuts the stainless steel plate along the edge of the lower die seat 13 during the reciprocating horizontal movement. At this time, the upper die seat 12 can be driven vertically down by the hydraulic cylinder 11, and the die body of the upper die seat 12 enters the die cavity of the lower die seat 13 to punch the stainless steel plate into the transformer shell, thereby conveniently realizing the automatic cutting of the stainless steel plate during the stamping process of the transformer shell, ensuring the normal feeding of the next time, and further improving the efficiency of the stamping process of the transformer shell;

[0048] When the sector gear 92 is disengaged from the second gear 74, the sector gear 92 meshes with the third gear 87 again. At this time, the lower die base 13 rotates 180 degrees in the opposite direction and is offset from the upper die base 12, allowing the stamping operator to take out the transformer casing in the lower die base 13. Compared with the existing technology, the transformer casing is directly taken out from under the upper die base 12, which avoids injuries to the stamping operator due to improper operation during stamping of the stamping machine body 1.

[0049] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A punching device for producing transformer casings, comprising a punching machine body (1), a punching table (2), a hydraulic cylinder (11), an upper die seat (12) and a lower die seat (13), wherein the punching table (2) is fixedly mounted on the lower end surface of a working chamber of the punching machine body (1), the hydraulic cylinder (11) is fixedly mounted on the upper end surface of the working chamber of the punching machine body (1), the piston end of the hydraulic cylinder (11) is fixedly connected to the upper surface of the upper die seat (12), and the lower die seat (13) is arranged at one end of the punching table (2), characterized in that: A frame plate (21) is fixedly mounted on one end of the punching platform (2) away from the lower die base (13); a reeling roller (22) is rotatably mounted on one end of the frame plate (21) away from the punching platform (2); two guide rollers (23) are rotatably mounted on one end of the frame plate (21) close to the punching platform (2); a feeding mechanism (3) is provided on one end of the punching platform (2) close to the frame plate (21); a cutting mechanism (6) is also provided on one end of the punching platform (2) close to the frame plate (21); and a station control mechanism (8) is provided on one end of the punching platform (2) away from the frame plate (21).

2. A stamping device for transformer housing production as claimed in claim 1, characterized in that: The feeding mechanism (3) comprises two side plates (31), a lower clamping roller (32) is fixedly installed between the two side plates (31), an upper clamping roller (33) is provided between the two side plates (31), and the upper clamping roller (33) corresponds vertically to the lower clamping roller (32). Two first rotating shafts (36) are rotatably installed on both sides of the punching table (2), one end of each of the four first rotating shafts (36) is fixedly installed with a first transmission wheel (37), a first transmission belt (38) is transmission-installed between two adjacent first transmission wheels (37), and one end of each of the two first transmission belts (38) is fixedly installed with a driving rod (39), and a circular groove (4) is provided on one side of the two side plates (31), and one of the driving rods (39) is in movably contact with one end of the circular groove (4) away from the first transmission belt (38).

3. A stamping device for transformer housing production as claimed in claim 2, characterized in that: The upper surface of the punching table (2) is provided with two first guide grooves (34), and the bottom ends of the two side plates (31) are fixedly mounted with first guide blocks (35), and the first guide blocks (35) are slidably mounted at one end of the first guide grooves (34).

4. A stamping device for transformer housing production as claimed in claim 2, characterized in that: A first rotating rod (41) is rotatably mounted on the lower surface of the punching table (2); a first gear (42) is fixedly mounted on one end of the first rotating rod (41); first synchronous wheels (43) are fixedly mounted on both ends of the first rotating rod (41) and the other ends of two of the first rotating shafts (36); and a first synchronous belt (44) is installed between two adjacent first synchronous wheels (43).

5. A stamping device for transformer housing production as claimed in claim 2, characterized in that: The feeding mechanism (3) further comprises two movable plates (45), two push plates (47) and two U-shaped guide plates (54); the two U-shaped guide plates (54) are fixedly mounted on the upper surface of the punching platform (2) and are distributed on both sides of the punching platform (2); the upper clamping roller (33) and the lower clamping roller (32) are located between the two U-shaped guide plates (54); both sides of the two movable plates (45) are provided with a first inclined surface (46); the two push plates (47) are fixedly mounted on the upper surface of the punching platform (2) and are distributed on both sides of the punching platform (2); and both sides of the two push plates (47) are provided with a second inclined surface (48).

6. A stamping device for producing a transformer housing as claimed in claim 5, characterized in that: A slide groove (49) is provided on the opposite sides of the two side plates (31), and a slider (5) is slidably installed on the inner walls of the two slide grooves (49). A first connecting rod (51) is fixedly installed on the opposite sides of the two sliders (5), and one end of the first connecting rod (51) away from the slider (5) is fixedly connected to one end of the movable plate (45), and a second connecting rod (52) is fixedly installed on one end of the two movable plates (45), and one end of the second connecting rod (52) away from the movable plate (45) is fixedly connected to one end of the upper clamping roller (33), and a spring rod (53) is fixedly installed on one end of the two slide grooves (49), and one end of the spring rod (53) is fixedly connected to the lower surface of the slider (5).

7. A stamping device for producing a transformer housing as claimed in claim 4, characterized in that: The cutting mechanism (6) comprises a cutting machine body (61), a notch (62) is provided on the punching table (2), a fixing ring (63) is provided at one end of the notch (62), a fixing rod (64) is fixedly installed at the center position of the fixing ring (63), one end of the fixing rod (64) away from the fixing ring (63) is fixedly connected to the bottom end of the cutting machine body (61), two second rotating shafts (67) are rotatably installed below the notch (62), one end of the two second rotating shafts (67) are fixedly installed with a second transmission wheel (68), a second transmission belt (69) is installed between the two second transmission wheels (68), one end of the second transmission belt (69) is fixedly installed with two L-shaped moving rods (7), a circular guide rail (71) is fixedly installed on the lower surface of the fixing ring (63), and the circular guide rail Two arc blocks (72) are slidably mounted on (71); one end of the L-shaped moving rod (7) away from the second transmission belt (69) is fixedly connected to the lower surface of the arc block (72); a second rotating rod (73) is rotatably mounted on the lower surface of the punching table (2); one end of the second rotating rod (73) is fixedly mounted with a second gear (74); a first transmission rod (75) is rotatably mounted on the lower surface of the punching table (2); one end of the second rotating rod (73) and one end of the first transmission rod (75) are both fixedly mounted with a second synchronous wheel (76); a second synchronous belt (77) is installed between the two second synchronous wheels (76); the other end of the first transmission rod (75) and the other end of one of the second rotating shafts (67) are both fixed with a first bevel gear (78); the two first bevel gears (78) are meshed with each other.

8. A stamping device for transformer housing production as claimed in claim 7, characterized in that: Second guide grooves (65) are provided on both sides of the notch (62), and second guide blocks (66) are fixedly installed on both sides of the fixing ring (63), and the second guide block (66) is slidably installed at one end of the second guide groove (65).

9. A stamping device for producing a transformer housing as claimed in claim 7, characterized in that: The workstation control mechanism (8) comprises a rotating seat (81), a connecting block (82) is fixedly mounted on one side of the rotating seat (81), a side of the connecting block (82) away from the rotating seat (81) is fixedly connected to a side of the lower die seat (13), a third rotating shaft (83) is rotatably mounted on the punching table (2), one end of the third rotating shaft (83) is fixedly connected to the lower surface of the rotating seat (81), a second transmission rod (84) is rotatably mounted on the lower surface of the punching table (2), one end of the second transmission rod (84) is fixedly connected to the third rotating shaft (83), and a second transmission rod (84) is rotatably mounted on the lower surface of the punching table (2). A second bevel gear (85) is fixedly mounted on one end of the rotating shaft (83) away from the rotating seat (81), and the two second bevel gears (85) are meshed with each other. A third rotating rod (86) is rotatably mounted on the lower surface of the punching table (2), and a third gear (87) is fixedly mounted on one end of the third rotating rod (86). A third synchronous wheel (88) is fixedly mounted on one end of the third rotating rod (86) and the other end of the second transmission rod (84), and a third synchronous belt (89) is installed for transmission between the two third synchronous wheels (88).

10. A stamping device for producing a transformer housing as claimed in claim 9, characterized in that: A servo motor (9) is fixedly mounted on the lower surface of the punching table (2); a rotating shaft (91) is fixedly mounted on the driving output end of the servo motor (9); a sector gear (92) is fixedly mounted on the end of the rotating shaft (91) away from the servo motor (9); the sector gear (92) is meshingly connected to the first gear (42); the sector gear (92) is horizontally corresponding to the second gear (74); and the sector gear (92) is meshingly connected to the third gear (87).

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