Power transformer shell stamping device and using method thereof

Abstract

The invention relates to the technical field of metal machining, and discloses a power transformer shell stamping device and a using method thereof.The power transformer shell stamping device comprises a machine tool, the three ends of the upper surface of the machine tool are fixedly connected with vertical rods, the opposite sides of the tops of the three vertical rods are fixedly connected through a top frame, and the top frame connecting positions of the three vertical rods are sleeved with stamping motors; the side surface of a shaft rod at the bottom of the punching motor is sleeved with a delay pressing plate structure. According to the power transformer shell punching device and the using method thereof, machining operation of different thicknesses and heights can be achieved on the basis of a secondary bending punching machine according to shell edges of different sizes, the adaptability range is wide, drilling in different directions can be conducted on the basis of punching, follow-up shell assembling is facilitated, and the production efficiency is improved. According to the punching and drilling device, drilling operation can be conducted on the side faces and the bottom of a shell when punching is conducted, punching and drilling can be conducted at the same time, or only punching is conducted without drilling operation is conducted, the operation modes are more, and the using effect is wider.

Description

Technical Field

[0001] The invention relates to the technical field of metal processing, in particular to a power transformer shell stamping device and a use method thereof. Background Art

[0002] Power transformers are devices used to change the voltage level of alternating current. They are mainly used in power transmission, distribution and power systems. Power transformers change the voltage at the input and output ends through the principle of electromagnetic induction. When one side of the transformer is energized to generate an alternating magnetic field, the voltage is induced in the winding on the other side through mutual induction. Depending on the winding turns ratio at the input and output ends, the voltage can be increased, decreased or maintained.

[0003] The power transformer shell is usually made of metal sheets cut according to design requirements and size requirements to obtain raw material plates of corresponding sizes, which are then assembled into a box shape for placing the power transformer. The shell that needs to be assembled will leave a certain amount of folding edges, which are used for threaded connection and welding after bending. A part of the shell needs to be bent twice to form a hollow box shape for connection. However, the existing secondary stamping device cannot be quickly adjusted according to different side thicknesses, and its scope of use is limited. At the same time, the punching operation cannot be independently controlled during the stamping process, and the side and bottom punching methods cannot be effectively integrated with the stamping device, and the functionality is single.

[0004] In view of the above problems, it is urgent to carry out innovative design based on the original power transformer casing stamping device. Summary of the invention

[0005] The purpose of the present invention is to provide a power transformer casing stamping device and a method for using the same, so as to solve the problem that the existing secondary stamping device proposed in the above background technology cannot be quickly adjusted according to different side thicknesses, has a limited scope of use, and cannot independently control the punching operation during the stamping process. The side and bottom punching methods cannot be effectively integrated with the stamping device, and have a single functionality.

[0006] To achieve the above object, the present invention provides the following technical solution: a power transformer housing stamping device, comprising: The machine tool has vertical rods fixedly connected to the three ends of its upper surface, the opposite sides of the tops of the three vertical rods are fixedly connected through a top frame, and a stamping motor is sleeved at the intersection of the top frame between the three vertical rods, and a delayed pressing plate structure is sleeved on the side surface of the shaft rod at the bottom of the stamping motor; It also includes: a top plate, a plurality of load-bearing telescopic rods are evenly distributed around the lower surface of the top plate, and the middle part of the top plate is connected to the side surface of the shaft rod at the bottom of the stamping motor, and the side surface of the load-bearing telescopic rod is sleeved with a spring structure, the bottom of the stamping motor shaft is fixedly connected to an initial pressure component, the side surfaces of the initial pressure component connecting rods are all connected to the middle plate, the four corners of the lower surface of the middle plate are fixedly connected to the side stretching components, the bottoms of the four side stretching components are fixedly connected to the bevel blocks, and the four sides of the lower surface of the middle plate are fixedly The side sliding components are fixedly connected with opposite positions, and the bottom of the side sliding components are fixedly connected with extrusion blocks, and the side of the bevel block and the extrusion block opposite to each other are set as slide groove structures. The bottom of the initial pressure component is fixedly connected with a medium pressure block, and the medium pressure block is set as a conical structure, and the inclined side surfaces of the medium pressure block are set as slider structures. At the same time, the sliders on the side surfaces of the medium pressure block are respectively slidably connected in the slide grooves of the bevel block and the extrusion block. The interior of the medium pressure block is set as a cross groove structure, and the middle upper surface of the medium pressure block is fixedly connected with a drilling component.

[0007] Preferably, one end of the bottom of the drilling assembly is movably connected to the cross groove of the middle pressure block, and the four sides of the side surface of the middle pressure block are all set as hole structures corresponding to the positions of the bevel block and the extrusion block, and the bottom of the load-bearing telescopic rod is fixedly connected to the pressing assembly; A bottom support plate, the lower surface of which is fixedly connected to the upper surface of the machine tool, the upper surface of the bottom support plate is fixedly connected with a placement frame, the side surfaces of the placement frame are fixedly connected with side sliding components, the upper surfaces of the four side sliding components are internally slidably connected with three push components one and one push component two, the concave upper surface of the bottom support plate is fixedly connected with a limit component, the internal sliding connection of the placement frame is connected with a support component, the upper surface of the machine tool is fixedly connected with four-corner lifting components, and the push component two is located on the side opposite to the position of the motor of the four-corner lifting component The initial pressure assembly includes an initial pressure plate, the middle part of the upper surface of the initial pressure plate is fixedly connected to the bottom of the stamping motor shaft, the four corners of the lower surface of the initial pressure plate are fixedly connected with the initial pressure telescopic rod, and the interior of the initial pressure telescopic rod is set as a spring structure, the middle part of the lower surface of the initial pressure plate is fixedly connected with the adjusting telescopic rod, and the movable rod inside the adjusting telescopic rod is fixedly connected with the lever, and one end of the lever is connected to the door-shaped groove on the side surface of the adjusting telescopic rod, and the bottom of the adjusting telescopic rod is fixedly connected with the bottom pressure plate.

[0008] Preferably, the side stretching assembly comprises an oblique square frame, the upper surface of the oblique square frame is fixedly connected to the four corners of the middle plate, the inside of the oblique square frame is slidably connected to a side shift rod, the side of the side shift rod opposite to the inner wall of the oblique square frame is fixedly connected to a side shift spring, the bottom of the side shift rod is fixedly connected to a special-shaped block, the lower surface of the special-shaped block is fixedly connected to a side support, and one end of the lower surface of the side support is fixedly connected to the upper surface of the oppositely positioned oblique angle block; The side sliding assembly includes a double-width square frame and a double-narrow square frame, the upper surfaces of the double-width square frame and the double-narrow square frame are fixedly connected to the lower surface of the middle plate, the slideways of the double-width square frame and the double-narrow square frame are slidably connected with side shift rods, the side shift rods are respectively fixedly connected to the inner walls of the double-width square frame and the double-narrow frame on the opposite side with side shift springs, the bottoms of the two side shift rods are fixedly connected to rectangular blocks, the lower surfaces of the rectangular blocks are fixedly connected to side support plates, and one end of the lower surface of the side support plates is fixedly connected to the upper surface of the extrusion block.

[0009] Preferably, the drilling assembly comprises a square plate and four resetting telescopic rods, the bottoms of the four resetting telescopic rods are fixedly connected to the upper surface of the middle pressure block, and the tops of the four resetting telescopic rods are fixedly connected to the four corners of the lower surface of the square plate, and the side surfaces of the resetting telescopic rods are sleeved with a spring structure, the middle part of the lower surface of the square plate is fixedly connected with an internal threaded rod, the side surface of the internal threaded rod is sleeved with a hexagonal frame, the side surface of the internal threaded rod extending to one end of the hexagonal frame is threadedly connected with an outer sleeve, and the position of the outer sleeve at the bottom of the hexagonal frame is set as a grip structure, the side surface of the outer sleeve is movably sleeved with a fixed frame, and the side surface of the fixed frame is fixedly connected to the middle part of the cross groove of the middle pressure block, and the bottom of the outer sleeve is fixedly connected with a movable frame; The bottom of the cross groove of the middle pressure block is movably connected with a pressure equalizing plate, a plurality of lower punches are evenly distributed on the lower surface of the pressure equalizing plate, a cross-connecting plate is fixedly connected to the side surface of the lower punch, and side rods are connected through the inside of the two ends of the cross-connecting plate, a pressure spring is fixedly connected to the lower surface of the cross-connecting plate located between the two lower punches, and a portal frame and a fixed bottom plate are connected through the side surface of the lower punch; The four side surfaces of the hexagonal frame are fixedly connected to an upper shaft seat, and a traction shaft rod is rotatably connected inside the upper shaft seat, and the other end of the traction shaft rod is sleeved on a lower shaft seat, and the other side of the lower shaft seat is fixedly connected to an I-shaped plate, and an ear slider is fixedly connected to the upper surface of the cross beam of the I-shaped plate, and both sides of the I-shaped plate and the ear slider are slidably connected in the cross groove of the middle pressure block, and a long push rod is fixedly connected to the opposite side of the two I-shaped plates in the horizontal direction, and a short push rod is fixedly connected to the opposite side of the two I-shaped plates in the longitudinal direction, and the other ends of the long push rod and the short push rod are fixedly connected to the side drilling rod.

[0010] Preferably, the pressing assembly includes a hollow plate, the upper surface of which is fixedly connected to the bottom of the load-bearing telescopic rod, and the middle part of the hollow plate is set as a hollow structure, and the side of the hollow plate is set as a plurality of slide groove structures, and the plurality of slide grooves on the side of the hollow plate are slidably connected with inclined plug plates, and the opposite sides of the plurality of inclined plug plates are set as slide structures, and the outer wall of the groove on the side of the hollow plate is penetrated by a side sliding rod, and the bottoms of the plurality of side sliding rods are fixedly connected to the upper surface of the machine tool.

[0011] Preferably, the bottom support plate includes a pad, the lower surface of the pad is fixedly connected to the upper surface of the machine tool, and the lateral sides of the pad are set as two symmetrical concave structures, a plurality of top telescopic rods are fixedly connected to the middle of the upper surface of the pad, and the side surface of the top telescopic rod is sleeved with a spring structure, and the top of the top telescopic rod is fixedly connected to the lower surface of the support assembly; The support assembly includes a placement platform, the lower surface of the placement platform is fixedly connected to a support slider, and the upper surface of the placement platform is set as a plurality of hole structures, the side surface of the support slider is slidably connected to a slideway in the placement frame, and the lower surface of the support slider is fixedly connected to the top of a plurality of upper telescopic rods.

[0012] Preferably, the placement frame includes a sleeve frame, the lower surface of the sleeve frame is fixedly connected to the upper surface of the pad, the interior of the sleeve frame is set as a slideway structure, and the two ends of the side surface of the sleeve frame are fixedly connected with circular hole cylinders, the upper surface of the sleeve frame is fixedly connected to the limited layer plate, the four corners of the upper surface of the limited layer plate are fixedly connected with L-shaped plates, and the extension plates at both ends of the L-shaped plate are set as elliptical hole structures; The side sliding assembly includes four linkage rods, the opposite ends of the four linkage rods are sleeved on the side surfaces inside the four-corner lifting assemblies, the opposite ends of the four linkage rods are fixedly connected with series blocks, the four series blocks are fixedly connected with series rods on opposite sides, the side surfaces of the series rods are slidably connected in the elliptical holes of the L-shaped plates, the opposite ends of the two series rods are fixedly connected with rear frames, the opposite sides of the four rear frames are fixedly connected with trapezoidal frames, the opposite sides of the four rear frames are slidably connected with multiple anti-slide frames, the lower surfaces of the multiple anti-slide frames are fixedly connected with working slide blocks, the bottom of the side surfaces of the working slide blocks are fixedly connected with working slide grooves, the bottom of the working slide grooves are fixedly connected with heightening plates, and the lower surface of the heightening plates is fixedly connected to the upper surface of the pad.

[0013] Preferably, the pushing assembly 1 includes a vertical frame, the top of the side surface of the vertical frame is threadedly connected to a threaded handle, the threaded handle extends to one end of the vertical frame and is axially connected to a concave plate, the other side of the concave plate is fixedly connected to a spring telescopic pressure rod, the other end of the spring telescopic pressure rod is fixedly connected to a bending block, and the two ends of the upper surface of the bending block are set as inclined structures, and the front end of the bending block is set as a ladder block structure, and the opposite ends of the four bending blocks are set as step structures, the lower surface of the bending block is slidably connected to the slideway frame, and the opposite side of the top position of the vertical rod of the concave plate is fixedly connected to a traction rod 1; The pushing assembly 2 also includes a structure of a vertical frame, a threaded handle, a spring telescopic pressure rod and a bending block, and one end of the threaded handle of the pushing assembly 2 is axially connected to a slot plate, and both ends of the slot plate are set as slot hole structures, and splicing plates are inserted into the slot holes at both ends of the slot plate, and the tops of the two splicing plates away from the threaded handle are fixedly connected to the traction rod 2, and one end of the multiple traction rods 1 and traction rods 2 away from the concave plate is movably connected in the slideway of the inclined plug plate, and the other side of the slot plate is fixedly connected to one end of the spring telescopic pressure rod; The limit assembly includes eight side panels, and four side panels form a group and two side panels in the same group are located on the same side, a vertical group of the side panels is fixedly connected to the upper surface of the machine tool, a horizontal group of the side panels is fixedly connected to both sides of the top of the pad groove, the tops of the two groups of side panels are set in horizontal elliptical slides, and the elliptical slides of the two groups of side panels are slidably connected with a transverse rod, the other end of the transverse rod is fixedly connected with a hexagonal rod, and the four side panels in the same group are opposite to each other, the side surface of the hexagonal rod is sleeved with a hook rod, and the top of the hook rod faces the upper telescopic rod One side is fixedly connected to one side of the concave plate and the slot plate, the side surface of the transverse rod is sleeved with a lower pull rod and an upper pull rod, the other ends of the lower pull rod and the upper pull rod are respectively sleeved with a lower swivel seat and an upper swivel seat, and the other side of the lower swivel seat in the vertical position is fixedly connected to the side surface of the pad, and the other side of the lower swivel seat in the horizontal position is fixedly connected to the inner side surface of the pad groove, the other side of the upper swivel seat is slidably connected with a cross slide bar, and the bottom of the cross slide bar is fixedly connected to the upper surface of the pad, and the upper surface of the cross slide bar is built on the lower surface of the inclined surface of the bending block.

[0014] Preferably, the four-corner lifting assembly includes a reinforcement plate, the lower surface of the reinforcement plate is fixedly connected to the upper surface of the machine tool, the upper surface of the reinforcement plate is highly connected to the lifting motor, one end of the lifting motor shaft is penetrated and connected with a transfer box, both sides of the transfer box are penetrated and connected with screw rods, the other ends of the screw rods at both ends are threadedly connected to the left and right transfer boxes, the top of the left and right transfer boxes is penetrated and connected with a threaded winding rod, and the screw rod penetrates through one end of the left and right transfer boxes and is threadedly connected to the side surface of the threaded winding rod, the side surface of the threaded winding rod is threadedly connected to one end of the linkage rod, the other side of the two left and right transfer boxes is connected to the end transfer box through a screw rod transmission, and the screw rod is threadedly connected to the threaded winding rod inside the end transfer box, and the screw rod connecting the left and right transfer boxes and the end transfer box is penetrated and connected in the circular hole cylinder.

[0015] Preferably, the power transformer housing stamping device comprises the following steps: S1: When it is necessary to perform hemming stamping on the transformer housing with edges, the reinforcement plate is started first, and the screw rod in the transfer box is driven to rotate by the lifting motor, and then the screw rod drives the threaded winding rods in the left and right transfer boxes at both ends to rotate respectively, and as the horizontal screw rod rotates, the vertical screw rod and the end transfer box at the other end are driven to rotate, and the threaded winding rods in the end transfer boxes at both ends and the threaded winding rods of the left and right transfer boxes drive the linkage rods on the threaded side to rise and fall together, and during the rising and falling process, the series block and series rod at one end of the four linkage rods move up and down in the L-shaped plate, and after the rear frame and the trapezoidal frame are separated from the slideway frame, they move up and down together, thereby being able to perform height adjustment according to the side hemming needs; S2: On the other hand, when it is necessary to fold the transformer casings with different side lengths, in order to adapt to the side length of the casing, the threaded handles of the four vertical frames are respectively twisted to rotate and rotate out from the vertical frame. During the rotation, the concave plate and the slot plate are driven to move outward, and the spring telescopic pressure rod and the bending block on the inside are driven to move outward through the concave plate and the slot plate. In the process of moving, the traction rod 1, the two splicing plates and the traction rod 2 will all pull the inclined plug plate in the same direction to move in the slideway of the hollow plate. The hook rod on the outside of the concave plate is also stretched open, and the lower pull rod and the upper pull rod are pulled apart through the hexagonal rod, so that the upper rotating seat at the other end of the upper pull rod falls a certain distance to ensure that the top inclined plug plate stops falling after contacting the upper rotating seat, so that the falling distance of the inclined plug plate can be controlled; S3: Next, push aside the two splicing plates and place the transformer casing on the placement platform. The pressing shaft rod at the bottom of the stamping motor and the initial pressing plate fall down together until the bevel block and the extrusion block touch the casing, and then continue to fall until the four initial pressing telescopic rods are folded under force. When the force continues to be applied, the initial pressing telescopic rod presses the middle pressing block down and embeds it into the bevel block and the extrusion block. After the bevel block and the extrusion block are separated, the side moving rod is driven to expand outward through the connected side pillars and side support plates. At the same time, the flattened bevel block, middle pressing block and extrusion block press the casing and the supporting assembly as a whole. After the pressing plate is inserted into the sleeve frame, the pressing plate on the side surface of the pressing shaft of the stamping motor presses the top plate, and the pressing assembly is pushed down through the load-bearing telescopic rod. After the oblique plug plate in the hollow plate falls to the bending block, the bending block is squeezed to move inward, and the falling shell edge encounters the trapezoidal frame and then bends up, and the bending block performs secondary bending inward on the raised shell edge, which is convenient for welding or threaded connection with other shell plates, and is convenient for subsequent processing and installation. After the stamping motor is reset, the top telescopic rod at the bottom of the supporting slider is lifted, and the placement platform automatically rises, which is convenient for mold removal; S4: Secondly, when it is necessary to drill holes on the side, pull the lever to push the bottom pressure plate down to contact the upper surface of the square plate. When pressing down, the contacted square plate is pressed down by the hexagonal frame at the bottom of the internal threaded rod, and then the upper shaft seat and the traction shaft rod around the hexagonal frame push the lower shaft seat and the I-type plate at the other end to move along the cross groove inside the middle pressure block. At the same time, the side drill rod (1210) at the other end of the long push rod and the short push rod will leak out from the side holes of the middle pressure block and the extrusion block and then squeeze and drill holes, and rotating the outer sleeve will make the movable frame fall along the fixed frame. After the movable frame contacts the upper surface of the equalizing plate, it falls again. The pressed movable frame is extended and retracted from the hole on the lower surface of the fixed bottom plate through the lower punch to drill holes. The above steps can drill holes on the side and bottom at the same time, or only drill holes in a single direction of the side and bottom.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the internal structure of the four-corner lifting assembly can simultaneously increase the height of the four sides, and combined with the side sliding assembly, adaptive adjustment can be performed according to the needs of the side height, thereby effectively adjusting the side thickness and increasing the adaptability of the equipment.

[0017] In the present invention, the connection structure of the pushing assembly facilitates the insertion of the shell, and the width of the placement platform can be adjusted through the threaded handle to suit the side lengths of different sizes. The shells of the same batch can be effectively clamped and fixed, which effectively increases the versatility of the equipment. The linkage structure of the limit assembly can also ensure that the pushing distance of the pushing block can adapt to the stretching distance.

[0018] In the present invention, the drilling assembly inside the cross groove of the middle pressure block can be adjusted autonomously in multiple stages. Each stage of adjustment can perform drilling operations on the side and bottom of the shell during stamping, and can also perform punching and drilling at the same time, or only perform punching without drilling. There are more operating methods and a wider range of use effects.

[0019] In the present invention, based on the secondary bending punching machine, processing operations of different thicknesses and heights can be achieved according to shell edges of different sizes, with a wide range of adaptability. Moreover, on the basis of stamping, drilling in different directions can be performed to facilitate subsequent shell assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall external structure of the present invention; Figure 2 It is a schematic diagram of the processing structure of the present invention; Figure 3 It is a schematic diagram of the bottom structure of the present invention; Figure 4 It is an enlarged schematic diagram of the placement structure of the present invention; Figure 5This is a schematic diagram of the placement frame structure of the present invention; Figure 6 This is a schematic diagram of the support assembly structure of the present invention; Figure 7 This is a schematic diagram of the structure of the pressing assembly of the present invention; Figure 8 It is a partial structural schematic diagram of the initial pressure assembly of the present invention; Fig. 9 It is a schematic top view of the structure of the initial pressure assembly of the present invention; Fig.10 It is a schematic diagram of the structure of the side stretching assembly and the side sliding assembly of the present invention; Fig.11 A side cross-sectional view of the drilling assembly of the present invention; Fig.12 It is a schematic diagram of the top view of the drilling assembly of the present invention; Fig.13 It is a bottom view structural schematic diagram of the drilling assembly of the present invention; Fig.14 It is a schematic diagram of the structure of the pushing assembly and the limiting assembly of the present invention; Fig.15 It is a schematic diagram of the structure of the side sliding assembly and the four-corner lifting assembly of the present invention.

[0021] In the figure: 1, machine tool; 2, vertical rod; 3, stamping motor; 4, top plate; 5, initial pressure assembly; 501, initial pressure plate; 502, initial pressure telescopic rod; 503, adjustment telescopic rod; 504, lever; 505, bottom pressure plate; 6, middle plate; 7, side stretching assembly; 701, oblique square frame; 702, side shift rod; 703, side shift spring; 704, special-shaped block; 705, side support; 8, side sliding assembly; 801, double-width square frame; 802, double-narrow square frame; 803, side shift rod; 804, side shift spring; 805, rectangular block; 806, side support plate; 9, bevel block; 10, middle pressure block; 11, extrusion block; 12, drilling assembly; 1201, square plate; 1202 , internal threaded rod; 1203, hexagonal frame; 1204, upper shaft seat; 1205, traction shaft rod; 1206, lower shaft seat; 1207, I-type plate; 1208, ear slider; 1209, long push rod; 1210, side drilling rod; 1211, outer sleeve; 1212, fixed frame; 1213, movable frame; 1214, equalizing plate; 1215, lower punch rod; 1216, cross-connecting plate; 1217, side rod; 1218, pressure spring; 1219, door frame; 1220, fixed bottom plate; 1221, short push rod; 1222, reset telescopic rod; 13, load-bearing telescopic rod; 14, lower pressure assembly; 1401, hollow plate; 1402, side sliding rod; 1403 , oblique insert plate; 15, bottom support plate; 1501, pad; 1502, top telescopic rod; 16, placement frame; 1601, sleeve frame; 1602, round hole tube; 1603, layer limit plate; 1604, L-shaped plate; 17, side sliding assembly; 1701, linkage rod; 1702, series block; 1703, series rod; 1704, rear frame; 1705, slideway frame; 1706, trapezoidal frame; 1707, working slide block; 1708, working slide groove; 1709, heightening plate; 18, push assembly one; 1801, vertical frame; 1802, threaded handle; 1803, concave plate; 1804, spring telescopic pressure rod; 1805, bending block; 1806, traction rod one; 1 9. Pushing assembly 2; 1901. Slot plate; 1902. Splicing plate; 1903. Pull rod 2; 20. Limiting assembly; 2001. Side plate; 2002. Transverse rod; 2003. Lower pull rod; 2004. Lower swivel seat; 2005. Hexagonal rod; 2006. Hook rod; 2007. Upper pull rod; 2008. Upper swivel seat; 2009. Cross slide bar; 21. Support assembly; 2101. Placement platform; 2102. Support slider; 22. Four-corner lifting assembly; 2201. Reinforcement plate; 2202. Lifting motor; 2203. Transfer box; 2204. Screw; 2205. Left and right transfer box; 2206. End transfer box; 2207. Threaded rod. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 15 The present invention provides a technical solution: a power transformer housing stamping device, comprising: The machine tool 1 has vertical rods 2 fixedly connected to the three ends of its upper surface, the tops of the three vertical rods 2 are fixedly connected to the opposite sides through a top frame, and a stamping motor 3 is sleeved at the intersection of the top frame between the three vertical rods 2, and a delayed pressing plate structure is sleeved on the side surface of the shaft rod at the bottom of the stamping motor 3; It also includes: a top plate 4, a plurality of load-bearing telescopic rods 13 are evenly distributed around its lower surface, and the middle part of the top plate 4 is connected to the side surface of the shaft rod at the bottom of the stamping motor 3, and the side surface of the load-bearing telescopic rod 13 is sleeved with a spring structure, the bottom of the shaft rod of the stamping motor 3 is fixedly connected to an initial pressure component 5, the side surface of the connecting rod of the initial pressure component 5 is connected to a middle plate 6, the four corners of the lower surface of the middle plate 6 are fixedly connected to the side stretching components 7, the bottoms of the four side stretching components 7 are fixedly connected to the bevel blocks 9, and the lower surface of the middle plate 6 is fixedly connected to the position Relative to the side sliding components 8, the bottom of the side sliding components 8 are fixedly connected with the extrusion block 11, and the side opposite to the bevel block 9 and the extrusion block 11 are set as a slide groove structure, the bottom of the initial pressure component 5 is fixedly connected with the middle pressure block 10, and the middle pressure block 10 is set as a conical structure, and the inclined side surfaces of the middle pressure block 10 are set as slider structures, and at the same time, the sliders on the side surfaces of the middle pressure block 10 are respectively slidably connected in the slide grooves of the bevel block 9 and the extrusion block 11, the interior of the middle pressure block 10 is set as a cross groove structure, and the middle upper surface of the middle pressure block 10 is fixedly connected with the drilling component 12.

[0024] One end of the bottom of the drilling assembly 12 is movably connected to the cross groove of the middle pressure block 10. At the same time, the four sides of the side surface of the middle pressure block 10 are all set as hole structures corresponding to the positions of the bevel block 9 and the extrusion block 11. The bottom of the load-bearing telescopic rod 13 is fixedly connected to the pressing assembly 14. The bottom support plate 15 has its lower surface fixedly connected to the upper surface of the machine tool 1, the upper surface of the bottom support plate 15 is fixedly connected with a placement frame 16, the side surfaces of the placement frame 16 are fixedly connected with side sliding components 17, the upper surfaces of the four side sliding components 17 are internally slidably connected with three pushing components 18 and one pushing component 2 19, the concave upper surface of the bottom support plate 15 is fixedly connected with a limiting component 20, the placement frame 16 is internally slidably connected with a supporting component 21, the upper surface of the machine tool 1 is fixedly connected with four corner lifting components 22, and the pushing component 2 19 is located on the side opposite to the motor position of the four corner lifting components 22.

[0025] The initial pressure assembly 5 includes an initial pressure plate 501, the middle part of the upper surface of the initial pressure plate 501 is fixedly connected to the bottom of the shaft rod of the stamping motor 3, the four corners of the lower surface of the initial pressure plate 501 are fixedly connected with the initial pressure telescopic rod 502, and the interior of the initial pressure telescopic rod 502 is set as a spring structure, the middle part of the lower surface of the initial pressure plate 501 is fixedly connected with the adjusting telescopic rod 503, and the movable rod inside the adjusting telescopic rod 503 is fixedly connected with the lever 504, and one end of the lever 504 is connected to the door-shaped groove on the side surface of the adjusting telescopic rod 503, and the bottom of the adjusting telescopic rod 503 is fixedly connected with the bottom pressure plate 505.

[0026] The side stretching assembly 7 includes an oblique square frame 701, the upper surface of the oblique square frame 701 is fixedly connected to the four corners of the middle plate 6, the inside of the oblique square frame 701 is slidably connected to a side shift rod 702, the side of the side shift rod 702 opposite to the inner wall of the oblique square frame 701 is fixedly connected to a side shift spring 703, the bottom of the side shift rod 702 is fixedly connected to a special-shaped block 704, the lower surface of the special-shaped block 704 is fixedly connected to a side support 705, and one end of the lower surface of the side support 705 is fixedly connected to the upper surface of the opposite oblique angle block 9; The side sliding assembly 8 includes a double-width square frame 801 and a double-narrow square frame 802, the upper surfaces of the double-width square frame 801 and the double-narrow square frame 802 are fixedly connected to the lower surface of the middle plate 6, and the slideways of the double-width square frame 801 and the double-narrow square frame 802 are slidably connected with side shift rods 803, and the side shift rods 803 are respectively fixedly connected to the inner walls of the double-width square frame 801 and the double-narrow square frame 802 on the opposite side with side shift springs 804, and the bottoms of the two side shift rods 803 are fixedly connected with rectangular blocks 805, and the lower surface of the rectangular blocks 805 is fixedly connected with side support plates 806, and one end of the lower surface of the side support plates 806 is fixedly connected to the upper surface of the extrusion block 11.

[0027] The drilling assembly 12 includes a square plate 1201 and four resetting telescopic rods 1222, the bottoms of the four resetting telescopic rods 1222 are fixedly connected to the upper surface of the middle pressure block 10, and the tops of the four resetting telescopic rods 1222 are fixedly connected to the four corners of the lower surface of the square plate 1201, and the side surfaces of the resetting telescopic rods 1222 are sleeved with spring structures, and the middle part of the lower surface of the square plate 1201 is fixedly connected to the inner threaded rod 1202, and the side surfaces of the inner threaded rod 1202 are fixedly connected to the inner threaded rod 1202. A hexagonal frame 1203 is sleeved, and the inner threaded rod 1202 extends to the side surface of one end of the hexagonal frame 1203 and is threadedly connected with an outer sleeve 1211, and the position of the outer sleeve 1211 at the bottom of the hexagonal frame 1203 is set as a grip structure, and the side surface of the outer sleeve 1211 is movably sleeved with a fixed frame 1212, and the side surface of the fixed frame 1212 is fixedly connected to the middle of the cross groove of the middle pressure block 10, and the bottom of the outer sleeve 1211 is fixedly connected with a movable frame 1213; The bottom of the cross groove of the middle pressure block 10 is movably connected with a pressure equalizing plate 1214, and a plurality of lower punches 1215 are evenly distributed on the lower surface of the pressure equalizing plate 1214. The side surface of the lower punch 1215 is fixedly connected with a cross connecting plate 1216, and the inside of the two ends of the cross connecting plate 1216 is penetrated and connected with a side rod 1217. The lower surface of the cross connecting plate 1216 located between the two lower punches 1215 is fixedly connected with a pressure spring 1218, and the side surface of the lower punch 1215 is penetrated and connected with a door frame 1219 and a fixed bottom plate 1220; The four sides of the hexagonal frame 1203 are fixedly connected with an upper shaft seat 1204, and the upper shaft seat 1204 is rotatably connected with a traction shaft rod 1205. The other end of the traction shaft rod 1205 is sleeved with a lower shaft seat 1206, and the other side of the lower shaft seat 1206 is fixedly connected with an I-shaped plate 1207, and the upper surface of the cross beam of the I-shaped plate 1207 is fixedly connected with an ear slider 1208, and both sides of the I-shaped plate 1207 and the ear slider 1208 are slidably connected in the cross groove of the middle pressure block 10, and the opposite sides of the two I-shaped plates 1207 are fixedly connected with a long push rod 1209, and the opposite sides of the two I-shaped plates 1207 are fixedly connected with a short push rod 1221, and the other ends of the long push rod 1209 and the short push rod 1221 are fixedly connected with a side drill rod 1210.

[0028] The pressing assembly 14 includes a hollow plate 1401, the upper surface of the hollow plate 1401 is fixedly connected to the bottom of the load-bearing telescopic rod 13, and the middle part of the hollow plate 1401 is set as a hollow structure, and the side of the hollow plate 1401 is set as a plurality of slide groove structures, and the plurality of slide grooves on the side of the hollow plate 1401 are slidably connected with an inclined plug plate 1403, and the opposite side of the plurality of inclined plug plates 1403 is set as a slide structure, and the outer wall of the groove on the side of the hollow plate 1401 is penetrated by a side sliding rod 1402, and the bottom of the plurality of side sliding rods 1402 is fixedly connected to the upper surface of the machine tool 1.

[0029] The bottom support plate 15 includes a pad 1501, the lower surface of the pad 1501 is fixedly connected to the upper surface of the machine tool 1, and the lateral sides of the pad 1501 are set as two symmetrical concave structures, a plurality of top telescopic rods 1502 are fixedly connected to the middle of the upper surface of the pad 1501, and the side surface of the top telescopic rod 1502 is sleeved with a spring structure, and the top of the top telescopic rod 1502 is fixedly connected to the lower surface of the support assembly 21; The supporting assembly 21 includes a placing platform 2101, the lower surface of which is fixedly connected to a supporting slider 2102, and the upper surface of the placing platform 2101 is set to have a plurality of hole structures, the side surface of the supporting slider 2102 is slidably connected to a slideway in the placing frame 16, and the lower surface of the supporting slider 2102 is fixedly connected to the top of a plurality of upper telescopic rods 1502.

[0030] The placement frame 16 includes a sleeve frame 1601, the lower surface of the sleeve frame 1601 is fixedly connected to the upper surface of the pad 1501, and the interior of the sleeve frame 1601 is set as a slideway structure, and the two ends of the side surface of the sleeve frame 1601 are fixedly connected to the inside of the circular hole cylinder 1602, the upper surface of the sleeve frame 1601 is fixedly connected to the limited layer plate 1603, the four corners of the upper surface of the limited layer plate 1603 are fixedly connected to the L-shaped plate 1604, and the extension plates at both ends of the L-shaped plate 1604 are set as elliptical hole structures; The side sliding assembly 17 includes four linkage rods 1701, and the opposite ends of the four linkage rods 1701 are sleeved on the side surfaces inside the four-corner lifting assembly 22, and the opposite ends of the four linkage rods 1701 are fixedly connected to the series blocks 1702, and the opposite sides of the four series blocks 1702 are fixedly connected to the series rods 1703, and the side surfaces of the series rods 1703 are slidably connected in the elliptical holes of the L-shaped plate 1604, and the opposite ends of the two series rods 1703 are fixedly connected to the rear frame 1704. The four rear frames 1704 are fixedly connected to the opposite sides with a trapezoidal frame 1706, and the four rear frames 1704 are slidably connected to the opposite sides with a plurality of anti-slide frames 1705. The lower surfaces of the plurality of anti-slide frames 1705 are fixedly connected with an industrial slider 1707, the bottom of the side surface of the industrial slider 1707 is fixedly connected with an industrial slide groove 1708, the bottom of the industrial slide groove 1708 is fixedly connected with a heightening plate 1709, and the lower surface of the heightening plate 1709 is fixedly connected to the upper surface of the pad 1501.

[0031] The pushing assembly 18 includes a vertical frame 1801, the top of the side surface of the vertical frame 1801 is threadedly connected with a threaded handle 1802, the threaded handle 1802 extends to the vertical frame 1801 and is axially connected to a concave plate 1803 at one end, the other side of the concave plate 1803 is fixedly connected with a spring telescopic pressure rod 1804, the other end of the spring telescopic pressure rod 1804 is fixedly connected with a bending block 1805, and the two ends of the upper surface of the bending block 1805 are set as inclined structures, and the front end of the bending block 1805 is set as a ladder block structure, and the opposite ends of the four bending blocks 1805 are set as step structures, the lower surface of the bending block 1805 is slidably connected in the slideway frame 1705, and the opposite side of the top of the vertical rod of the concave plate 1803 is fixedly connected with a traction rod 1806; The push assembly 2 19 also includes a structure of a vertical frame 1801, a threaded handle 1802, a spring telescopic pressure rod 1804 and a bending block 1805, and one end of the threaded handle 1802 of the push assembly 2 19 is axially connected to a slot plate 1901, and both ends of the slot plate 1901 are set as slot hole structures, and splicing plates 1902 are inserted into the slot holes at both ends of the slot plate 1901, and the tops of the two splicing plates 1902 away from the threaded handle 1802 are fixedly connected to the traction rod 2 1903, and the ends of the multiple traction rods 1 1806 and traction rods 2 1903 away from the concave plate 1803 are movably connected in the slideway of the inclined plug plate 1403, and the other side of the slot plate 1901 is fixedly connected to one end of the spring telescopic pressure rod 1804; The limiting assembly 20 includes eight side panels 2001, and four side panels 2001 form a group and two side panels 2001 in the same group are located on the same side, a vertical group of side panels 2001 is fixedly connected to the upper surface of the machine tool 1, and a horizontal group of side panels 2001 is fixedly connected to both sides of the top of the groove of the pad 1501, and the tops of the two groups of side panels 2001 are set in a horizontal elliptical slideway, and the elliptical slideways of the two groups of side panels 2001 are slidably connected with a transverse rod 2002, and the other end of the transverse rod 2002 is fixedly connected to a hexagonal rod 2005, and the four side panels 2001 in the same group are opposite to each other, and the side surface of the hexagonal rod 2005 is sleeved with a hook rod 2006, and the top of the hook rod 2006 is fixedly connected to the side of the upper telescopic rod 1502. On one side of the mold plate 1803 and the slot plate 1901, the side surface of the transverse rod 2002 is sleeved with the lower pull rod 2003 and the upper pull rod 2007, and the other ends of the lower pull rod 2003 and the upper pull rod 2007 are respectively sleeved with the lower swivel seat 2004 and the upper swivel seat 2008, and the other side of the lower swivel seat 2004 in the vertical position is fixedly connected to the side of the pad 1501, and the other side of the lower swivel seat 2004 in the horizontal position is fixedly connected to the inner side of the groove of the pad 1501, and the other side of the upper swivel seat 2008 is slidably connected with a cross slide bar 2009, and the bottom of the cross slide bar 2009 is fixedly connected to the upper surface of the pad 1501, and the upper surface of the cross slide bar 2009 is built on the lower surface of the inclined surface of the bending block 1805.

[0032] The four-corner lifting assembly 22 includes a reinforcing plate 2201, the lower surface of the reinforcing plate 2201 is fixedly connected to the upper surface of the machine tool 1, the upper surface of the reinforcing plate 2201 is highly connected to a lifting motor 2202, one end of the shaft of the lifting motor 2202 is penetrated and connected to a transfer box 2203, both sides of the transfer box 2203 are penetrated and connected to screw rods 2204, the other ends of the screw rods 2204 at both ends are threadedly connected to left and right transfer boxes 2205, the tops of the left and right transfer boxes 2205 are penetrated and connected to threaded winding rods 2207, and the screw rods 2204 are connected to the left and right transfer boxes 2205. One end passing through the left and right turn boxes 2205 is threadedly connected to the side surface of the threaded winding rod 2207, and the side surface of the threaded winding rod 2207 is threadedly connected to one end of the linkage rod 1701. The other sides of the two left and right turn boxes 2205 are connected to the end turn box 2206 through the screw rod 2204, and the screw rod 2204 is threadedly connected to the threaded winding rod 2207 inside the end turn box 2206, and the screw rod 2204 connecting the left and right turn boxes 2205 and the end turn box 2206 passes through the circular hole tube 1602.

[0033] The method for using the power transformer housing stamping device comprises the following steps: S1: When it is necessary to perform hemming stamping on the transformer housing with edges, first start the reinforcement plate 2201, and drive the screw rod 2204 in the transfer box 2203 to rotate through the lifting motor 2202, and then let the screw rod 2204 drive the threaded winding rod 2207 in the left and right transfer boxes 2205 at both ends to rotate, and when the horizontal screw rod 2204 rotates, it drives the vertical screw rod 2204 and the end transfer box 2206 at the other end to rotate, and the end transfer boxes 2206 at the two ends are rotated. The threaded winding rod 2207 in 06 and the threaded winding rod 2207 of the left and right turn box 2205 jointly drive the linkage rod 1701 on the threaded side to rise and fall together. During the rising and falling process, the series block 1702 and the series rod 1703 at the opposite end of the four linkage rods 1701 move up and down in the L-shaped plate 1604, and move up and down together with the rear frame 1704 and the trapezoidal frame 1706 after they are separated from the slideway frame 1705, so that the height can be adjusted according to the side folding needs; S2: On the other hand, when it is necessary to fold the transformer casings with different side lengths, in order to adapt to the side length of the casing, the threaded handles 1802 of the four vertical frames 1801 are respectively twisted to rotate and rotate out from the vertical frame 1801. During the rotation, the concave plate 1803 and the slot plate 1901 are driven to move outward, and the concave plate 1803 and the slot plate 1901 drive the inner spring telescopic pressure rod 1804 and the bending block 1805 to move outward, and in the process of moving, the traction rod 1806, the two The splicing plate 1902 and the second traction rod 1903 will pull the oblique plug plate 1403 in the same direction to move in the slideway of the hollow plate 1401, and the hook rod 2006 on the outer side of the concave plate 1803 will also be stretched open to pull the lower pull rod 2003 and the upper pull rod 2007 apart through the hexagonal rod 2005, so that the upper rotating seat 2008 at the other end of the upper pull rod 2007 falls a certain distance to ensure that the top oblique plug plate 1403 stops falling after contacting the upper rotating seat 2008, so that the falling distance of the oblique plug plate 1403 can be controlled; S3: Next, push aside the two splicing plates 1902 and place the transformer casing on the placement platform 2101. The pressing shaft rod at the bottom of the stamping motor 3 falls together with the initial pressing plate 501 until the bevel block 9 and the extrusion block 11 touch the casing, and then continue to fall until the four initial pressing telescopic rods 502 are folded under force. When the force continues to be applied, the initial pressing telescopic rod 502 presses the middle pressing block 10 downward and embeds it into the bevel block 9 and the extrusion block 11. After the bevel block 9 and the extrusion block 11 are separated, the side shift rod 803 is driven to expand outward through the connected side support 705 and the side support plate 806. At the same time, the flattened bevel block 9, the middle pressing block 10 and the extrusion block 11 press the casing and the support assembly 21 as a whole. In the sleeve frame 1601, the pressure plate on the side surface of the lower pressing shaft of the stamping motor 3 presses the top plate 4, and pushes the lower pressing assembly 14 to fall through the load-bearing telescopic rod 13. After the oblique plug plate 1403 in the hollow plate 1401 falls to the bending block 1805, the bending block 1805 is squeezed to move inward, and the falling shell edge encounters the trapezoidal frame 1706 when falling, and then it is tilted and bent, and the bending block 1805 performs a secondary bending inward on the tilted shell edge, which is convenient for welding or threading with other shell plates, and is convenient for subsequent processing and installation. After the stamping motor 3 is reset, the upper telescopic rod 1502 located at the bottom of the supporting slider 2102 lifts the placement platform 2101 and automatically rises, which is convenient for mold removal; S4: Secondly, when it is necessary to drill a hole on the side, pull the lever 504 to push the bottom pressure plate 505 to fall and contact the upper surface of the square plate 1201. When pressing down, the contacted square plate 1201 is pressed down by the hexagonal frame 1203 at the bottom of the internal threaded rod 1202, and then the upper shaft seat 1204 and the traction shaft rod 1205 around the hexagonal frame 1203 push the lower shaft seat 1206 and the I-type plate 1207 at the other end to move along the cross groove inside the middle pressure block 10. At the same time, the long push rod 1209 and the short push rod 1221 are pressed down. The side drill rod 1210 at one end will leak out from the side holes of the middle pressure block 10 and the extrusion block 11 and then squeeze and drill holes, and the rotating outer sleeve 1211 will make the movable frame 1213 fall along the fixed frame 1212. After the movable frame 1213 contacts the upper surface of the equalizing plate 1214, it falls again, and the pressed movable frame 1213 is telescoped and drilled from the hole on the lower surface of the fixed bottom plate 1220 through the lower punch rod 1215. The above steps can be used to drill holes on the side and bottom at the same time, or only on the side and bottom in a single direction.

[0034] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. 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 stamping device, comprising: A machine tool (1), wherein three ends of the upper surface of the machine tool are fixedly connected to vertical rods (2), the tops of the three vertical rods (2) are fixedly connected to each other on opposite sides via a top frame, and a stamping motor (3) is sleeved at the intersection of the top frame between the three vertical rods (2), and a delayed pressing plate structure is sleeved on the side surface of the shaft rod at the bottom of the stamping motor (3); It is characterized by further comprising: A top plate (4) has a plurality of load-bearing telescopic rods (13) equidistantly distributed around its lower surface, and the middle portion of the top plate (4) is connected to the side surface of the shaft rod at the bottom of the stamping motor (3), and the side surface of the load-bearing telescopic rod (13) is sleeved with a spring structure, the bottom of the shaft rod of the stamping motor (3) is fixedly connected to an initial pressure component (5), the side surfaces of the connecting rods of the initial pressure component (5) are connected to a middle plate (6), the four corners of the lower surface of the middle plate (6) are fixedly connected to side stretching components (7), the bottoms of the four side stretching components (7) are fixedly connected to bevel blocks (9), and the lower surface of the middle plate (6) is fixedly connected to the sides thereof. The side sliding assembly (8) is fixedly connected to an extrusion block (11) at the bottom, and the sides of the bevel block (9) and the extrusion block (11) opposite to each other are configured as a slide groove structure; the bottom of the initial pressure assembly (5) is fixedly connected to a medium pressure block (10), and the medium pressure block (10) is configured as a conical structure, and the inclined side surfaces of the medium pressure block (10) are configured as slider structures, and the sliders on the side surfaces of the medium pressure block (10) are respectively slidably connected in the slide grooves of the bevel block (9) and the extrusion block (11); the interior of the medium pressure block (10) is configured as a cross groove structure, and the middle upper surface of the medium pressure block (10) is fixedly connected to a drilling assembly (12).

2. The power transformer housing stamping device according to claim 1, characterized in that: One end of the bottom of the drilling assembly (12) is movably connected to the cross groove of the middle pressure block (10), and the four sides of the side surface of the middle pressure block (10) are all set as hole structures corresponding to the positions of the bevel block (9) and the extrusion block (11), and the bottom of the load-bearing telescopic rod (13) is fixedly connected to the pressing assembly (14); A bottom support plate (15), the lower surface of which is fixedly connected to the upper surface of the machine tool (1); the upper surface of the bottom support plate (15) is fixedly connected to a placement frame (16); the side surfaces of the placement frame (16) are fixedly connected to side sliding components (17); the upper surfaces of four side sliding components (17) are internally slidably connected to three push components one (18) and one push component two (19); the concave upper surface of the bottom support plate (15) is fixedly connected to a limit component (20); the placement frame (16) is internally slidably connected to a support component (21); the upper surface of the machine tool (1) is fixedly connected to four corner lifting components (22), and the push component two (19) is located on the side opposite to the motor position of the four corner lifting components (22); The initial pressure assembly (5) comprises an initial pressure plate (501), the middle portion of the upper surface of the initial pressure plate (501) is fixedly connected to the bottom of the shaft of the stamping motor (3), the four corners of the lower surface of the initial pressure plate (501) are fixedly connected to initial pressure telescopic rods (502), and the interior of the initial pressure telescopic rod (502) is set as a spring structure, the middle portion of the lower surface of the initial pressure plate (501) is fixedly connected to an adjustment telescopic rod (503), and the movable rod inside the adjustment telescopic rod (503) is fixedly connected to a lever (504), and one end of the lever (504) is connected to a door-shaped groove on the side surface of the adjustment telescopic rod (503), and the bottom of the adjustment telescopic rod (503) is fixedly connected to a bottom pressure plate (505).

3. The power transformer housing stamping device according to claim 2, characterized in that: The side stretching assembly (7) comprises an oblique square frame (701), the upper surface of the oblique square frame (701) is fixedly connected to the four corners of the middle plate (6), the inside of the oblique square frame (701) is slidably connected to a side shift rod (702), the side of the side shift rod (702) opposite to the inner wall of the oblique square frame (701) is fixedly connected to a side shift spring (703), the bottom of the side shift rod (702) is fixedly connected to a special-shaped block (704), the lower surface of the special-shaped block (704) is fixedly connected to a side support (705), and one end of the lower surface of the side support (705) is fixedly connected to the upper surface of the oppositely located oblique angle block (9); The side sliding assembly (8) comprises a double-width square frame (801) and a double-narrow square frame (802); the upper surfaces of the double-width square frame (801) and the double-narrow square frame (802) are fixedly connected to the lower surface of the middle plate (6); the slideways of the double-width square frame (801) and the double-narrow square frame (802) are slidably connected to side shift rods (803); the side shift rods (803) are respectively fixedly connected to the inner walls of the double-width square frame (801) and the double-narrow square frame (802) on opposite sides thereof with side shift springs (804); the bottoms of the two side shift rods (803) are fixedly connected to rectangular blocks (805); the lower surfaces of the rectangular blocks (805) are fixedly connected to side support plates (806); one end of the lower surface of the side support plates (806) is fixedly connected to the upper surface of the extrusion block (11).

4. The power transformer housing stamping device according to claim 3, characterized in that: The drilling assembly (12) comprises a square plate (1201) and four resetting telescopic rods (1222), the bottoms of the four resetting telescopic rods (1222) being fixedly connected to the upper surface of the middle pressure block (10), and the tops of the four resetting telescopic rods (1222) being fixedly connected to the four corners of the lower surface of the square plate (1201), and the side surfaces of the resetting telescopic rods (1222) being sleeved with spring structures, and the middle part of the lower surface of the square plate (1201) being fixedly connected to an internally threaded rod (1202), and the side surfaces of the internally threaded rods (1202) being A hexagonal frame (1203) is sleeved thereon, the inner threaded rod (1202) extends to the side surface of one end of the hexagonal frame (1203) and is threadedly connected to an outer sleeve (1211), and the position of the outer sleeve (1211) located at the bottom of the hexagonal frame (1203) is set as a grip structure, the side surface of the outer sleeve (1211) is movably sleeved with a fixed frame (1212), and the side surface of the fixed frame (1212) is fixedly connected to the middle of the cross groove of the middle pressure block (10), and the bottom of the outer sleeve (1211) is fixedly connected to a movable frame (1213); The bottom of the cross groove of the middle pressure block (10) is movably connected to a pressure equalizing plate (1214), a plurality of lower punches (1215) are equidistantly distributed on the lower surface of the pressure equalizing plate (1214), a cross-connecting plate (1216) is fixedly connected to the side surface of the lower punches (1215), side rods (1217) are connected through the inside of both ends of the cross-connecting plate (1216), a pressure spring (1218) is fixedly connected to the lower surface of the cross-connecting plate (1216) located between the two lower punches (1215), and a door frame (1219) and a fixed bottom plate (1220) are connected through the side surface of the lower punches (1215); The four sides of the hexagonal frame (1203) are all fixedly connected to an upper shaft seat (1204), the interior of the upper shaft seat (1204) is rotatably connected to a traction shaft rod (1205), the other end of the traction shaft rod (1205) is sleeved with a lower shaft seat (1206), the other side of the lower shaft seat (1206) is fixedly connected to an I-shaped plate (1207), and the upper surface of the crossbeam of the I-shaped plate (1207) is fixedly connected to an ear slider (1208). ), and both sides of the I-shaped plate (1207) and the ear slider (1208) are slidably connected in the cross groove of the middle pressure block (10), the two I-shaped plates (1207) are laterally fixedly connected on one side opposite to the other with a long push rod (1209), and the two I-shaped plates (1207) are longitudinally fixedly connected on one side opposite to the other with a short push rod (1221), and the other ends of the long push rod (1209) and the short push rod (1221) are fixedly connected to the side drilling rod (1210).

5. The power transformer housing stamping device according to claim 4, characterized in that: The pressing assembly (14) comprises a hollow plate (1401), the upper surface of the hollow plate (1401) is fixedly connected to the bottom of the load-bearing telescopic rod (13), the middle part of the hollow plate (1401) is set as a hollow structure, and the side of the hollow plate (1401) is set as a plurality of slide groove structures, the plurality of slide grooves on the side of the hollow plate (1401) are all slidably connected with inclined plug plates (1403), and the opposite sides of the plurality of inclined plug plates (1403) are set as slideway structures, the outer wall of the groove on the side of the hollow plate (1401) is penetrated by a side sliding rod (1402), and the bottoms of the plurality of side sliding rods (1402) are fixedly connected to the upper surface of the machine tool (1).

6. The power transformer housing stamping device according to claim 5, characterized in that: The bottom support plate (15) comprises a pad (1501), the lower surface of the pad (1501) is fixedly connected to the upper surface of the machine tool (1), and the lateral sides of the pad (1501) are arranged as two symmetrical concave structures, a plurality of top telescopic rods (1502) are fixedly connected to the middle of the upper surface of the pad (1501), the side surfaces of the top telescopic rods (1502) are sleeved with spring structures, and the tops of the top telescopic rods (1502) are fixedly connected to the lower surface of the support assembly (21); The support assembly (21) comprises a placement platform (2101), the lower surface of the placement platform (2101) is fixedly connected to a support slider (2102), and the upper surface of the placement platform (2101) is provided with a plurality of hole structures, the side surface of the support slider (2102) is slidably connected to a slideway in a placement frame (16), and the lower surface of the support slider (2102) is fixedly connected to the top of a plurality of upper telescopic rods (1502).

7. The power transformer housing stamping device according to claim 6, characterized in that: The placement frame (16) comprises a sleeve frame (1601), the lower surface of the sleeve frame (1601) is fixedly connected to the upper surface of the pad (1501), the interior of the sleeve frame (1601) is configured as a slideway structure, and circular hole cylinders (1602) are fixedly connected to the interior of both ends of the side surface of the sleeve frame (1601), the upper surface of the sleeve frame (1601) is fixedly connected to a limited layer plate (1603), the four corners of the upper surface of the limited layer plate (1603) are fixedly connected to an L-shaped plate (1604), and the extension plates at both ends of the L-shaped plate (1604) are configured as elliptical hole structures; The side sliding assembly (17) comprises four linkage rods (1701), the opposite ends of the four linkage rods (1701) are sleeved on the side surfaces inside the four-corner lifting assembly (22), the opposite ends of the four linkage rods (1701) are fixedly connected to the series blocks (1702), the opposite sides of the four series blocks (1702) are fixedly connected to the series rods (1703), the side surfaces of the series rods (1703) are slidably connected in the elliptical holes of the L-shaped plate (1604), and the opposite ends of the two series rods (1703) are fixedly connected to the rear frame (1704). The four rear frames (1704) are fixedly connected to a trapezoidal frame (1706) on one side opposite to the other, and are slidably connected to a plurality of slideway frames (1705) on the other side of the four rear frames (1704). The lower surfaces of the plurality of slideway frames (1705) are fixedly connected to a working slider (1707). The bottom of the side surface of the working slider (1707) is fixedly connected to a working slide groove (1708). The bottom of the working slide groove (1708) is fixedly connected to a heightening plate (1709), and the lower surface of the heightening plate (1709) is fixedly connected to the upper surface of the pad (1501).

8. The power transformer housing stamping device according to claim 7, characterized in that: The pushing assembly 1 (18) comprises a vertical frame (1801), the top of the side surface of the vertical frame (1801) is threadedly connected to a threaded handle (1802), the threaded handle (1802) extends to the vertical frame (1801) and is axially connected to one end of the vertical frame (1801), the other side of the concave plate (1803) is fixedly connected to a spring telescopic pressure rod (1804), the other end of the spring telescopic pressure rod (1804) is fixedly connected to a bending block (1805), and the two ends of the upper surface of the bending block (1805) are set as inclined structures, and the front end of the bending block (1805) is set as a ladder block structure, and the opposite ends of the four bending blocks (1805) are set as step structures, the lower surface of the bending block (1805) is slidably connected in the slideway frame (1705), and the opposite side of the vertical rod top of the concave plate (1803) is fixedly connected to a traction rod 1 (1806); The pushing component 2 (19) also includes a structure of a vertical frame (1801), a threaded handle (1802), a spring telescopic pressure rod (1804) and a bending block (1805), and one end of the threaded handle (1802) of the pushing component 2 (19) is axially connected to a slot plate (1901), and both ends of the slot plate (1901) are configured as slot hole structures, and splicing plates (1902) are inserted into the slot holes at both ends of the slot plate (1901), and the tops of the two splicing plates (1902) away from the threaded handle (1802) are fixedly connected to a traction rod 2 (1903), and one end of the plurality of traction rods 1 (1806) and traction rods 2 (1903) away from the concave plate (1803) is movably connected to the slideway of the inclined plug plate (1403), and the other side of the slot plate (1901) is fixedly connected to one end of the spring telescopic pressure rod (1804); The limiting assembly (20) comprises eight side panels (2001), and four side panels (2001) form a group and two side panels (2001) in the same group are located on the same side, a vertical group of the side panels (2001) is fixedly connected to the upper surface of the machine tool (1), a horizontal group of the side panels (2001) is fixedly connected to the top two sides of the groove of the pad (1501), the tops of the two groups of side panels (2001) are set in a horizontal elliptical slideway, the elliptical slideways of the two groups of side panels (2001) are slidably connected with a transverse rod (2002), the other end of the transverse rod (2002) is fixedly connected with a hexagonal rod (2005), and the four side panels (2001) in the same group are opposite to each other, the side surface of the hexagonal rod (2005) is sleeved with a hook rod (2006), and the top of the hook rod (2006) is fixedly connected to the side facing the upper telescopic rod (1502). Connected to one side of the concave plate (1803) and the slot plate (1901), the side surface of the transverse rod (2002) is sleeved with a lower pull rod (2003) and an upper pull rod (2007), and the other ends of the lower pull rod (2003) and the upper pull rod (2007) are sleeved with a lower swivel seat (2004) and an upper swivel seat (2008) respectively, and the other side of the lower swivel seat (2004) in the vertical position is fixedly connected to the side of the pad (1501), and the other side of the lower swivel seat (2004) in the horizontal position is fixedly connected to the inner side of the groove of the pad (1501), and the other side of the upper swivel seat (2008) is slidably connected with a cross slide bar (2009), and the bottom of the cross slide bar (2009) is fixedly connected to the upper surface of the pad (1501), and the upper surface of the cross slide bar (2009) is built on the lower surface of the inclined surface of the bending block (1805).

9. The power transformer housing stamping device according to claim 8, characterized in that: The four-corner lifting assembly (22) comprises a reinforcing plate (2201), the lower surface of the reinforcing plate (2201) is fixedly connected to the upper surface of the machine tool (1), the upper surface of the reinforcing plate (2201) is highly connected to a lifting motor (2202), one end of the shaft of the lifting motor (2202) is connected to a transfer box (2203), both sides of the transfer box (2203) are connected to screw rods (2204), the other ends of the screw rods (2204) at both ends are threadedly connected to left and right transfer boxes (2205), the top of the left and right transfer boxes (2205) is connected to a threaded winding rod (2207), and the screw rods One end of the left and right transfer boxes (2205) (2204) is threadedly connected to the side surface of the threaded winding rod (2207), and the side surface of the threaded winding rod (2207) is threadedly connected to one end of the linkage rod (1701). The other side of the two left and right transfer boxes (2205) is connected to the end transfer box (2206) through the screw rod (2204), and the screw rod (2204) is threadedly connected to the threaded winding rod (2207) inside the end transfer box (2206), and the screw rod (2204) connecting the left and right transfer boxes (2205) and the end transfer box (2206) is connected to the circular hole cylinder (1602).

10. A method for using a power transformer housing stamping device, using the power transformer housing stamping device according to any one of claims 1 to 9, characterized in that: The steps include: S1: When it is necessary to perform hemming stamping on the transformer housing with edges, the reinforcing plate (2201) is first started, and the screw rod (2204) in the transfer box (2203) is driven to rotate by the lifting motor (2202), and then the screw rod (2204) drives the threaded winding rod (2207) in the left and right transfer boxes (2205) at both ends to rotate respectively, and when the horizontal screw rod (2204) rotates, the vertical screw rod (2204) and the end transfer box (2206) at the other end are driven to rotate, and the end transfer boxes (2206) at the two ends are driven to rotate. 6) The threaded winding rod (2207) inside and the threaded winding rod (2207) of the left and right rotating machine boxes (2205) jointly drive the linkage rod (1701) on the threaded side to rise and fall together. During the rising and falling process, the series blocks (1702) and the series rods (1703) at the opposite ends of the four linkage rods (1701) move up and down in the L-shaped plate (1604), and after the rear frame (1704) and the trapezoidal frame (1706) are separated from the slideway frame (1705), they move up and down together, thereby enabling the height to be adjusted according to the side folding requirements; S2: On the other hand, when it is necessary to fold the transformer casing with different side lengths, in order to adapt to the side length of the casing, the threaded handles (1802) of the four vertical frames (1801) are respectively twisted to rotate and rotate out from the vertical frame (1801). During the rotation, the concave plate (1803) and the slot plate (1901) are driven to move outward, and the inner spring telescopic pressure rod (1804) and the bending block (1805) are driven to move outward through the concave plate (1803) and the slot plate (1901). In addition, during the movement, the traction rod (1806), the two splicing plates ( The first and second traction rods (1902) and the second traction rod (1903) will pull the inclined plate (1403) in the same direction to move in the slideway of the hollow plate (1401), and the hook rod (2006) on the outside of the concave plate (1803) will also be stretched to pull the lower pull rod (2003) and the upper pull rod (2007) apart through the hexagonal rod (2005), so that the upper rotating seat (2008) at the other end of the upper pull rod (2007) falls a certain distance to ensure that the top inclined plate (1403) stops falling after contacting the upper rotating seat (2008), so that the falling distance of the inclined plate (1403) can be controlled; S3: Next, the two splicing plates (1902) are pushed apart to place the transformer housing on the placement platform (2101). The pressing shaft rod at the bottom of the stamping motor (3) and the initial pressing plate (501) fall down until the bevel block (9) and the extrusion block (11) contact the housing, and then continue to fall until the four initial pressing telescopic rods (502) are folded under force. When the force continues to be applied, the initial pressing telescopic rod (502) presses the middle pressing block (10) downward and embeds it into the bevel block (9) and the extrusion block (11). After the bevel block (9) and the extrusion block (11) are separated, the side shift rod (803) is driven to expand outward through the connected side support (705) and the side support plate (806). At the same time, the flattened bevel block (9), the middle pressing block (10) and the extrusion block (11) push the housing and the support assembly (21 ) is pressed into the sleeve frame (1601) as a whole, and the pressing plate on the side surface of the pressing shaft of the stamping motor (3) presses the top plate (4), and pushes the pressing assembly (14) to fall through the load-bearing telescopic rod (13). After the inclined plug plate (1403) in the hollow plate (1401) falls to the bending block (1805), the bending block (1805) is squeezed to move inward, and the falling shell edge encounters the trapezoidal frame (1706) when falling, and then rises and bends, and the bending block (1805) performs a secondary bending inward on the raised shell edge, which is convenient for welding or threaded connection with other shell plates, and is convenient for subsequent processing and installation. After the stamping motor (3) is reset, the upper telescopic rod (1502) located at the bottom of the supporting slider (2102) lifts the placement platform (2101) and automatically rises, which is convenient for mold removal; S4: Secondly, when it is necessary to drill a hole on the side, pull the lever (504) to push the bottom pressure plate (505) down to contact the upper surface of the square plate (1201). When pressing down, the square plate (1201) in contact is pressed down by the hexagonal frame (1203) at the bottom of the internal threaded rod (1202). Then, the upper shaft seat (1204) and the traction shaft rod (1205) around the hexagonal frame (1203) push the lower shaft seat (1206) and the I-shaped plate (1207) at the other end to move along the cross groove inside the middle pressure block (10). At the same time, the long push rod (1209) and the short push rod (122 1) The side drilling rod (1210) at the other end leaks out from the side holes of the middle pressure block (10) and the extrusion block (11) and then squeezes and drills holes, and the outer sleeve (1211) is rotated to make the movable frame (1213) fall along the fixed frame (1212). After the movable frame (1213) contacts the upper surface of the pressure equalizing plate (1214), it falls again. The pressed movable frame (1213) is extended and drilled from the hole on the lower surface of the fixed bottom plate (1220) through the lower punch (1215). The above steps can be used to drill holes on the side and the bottom at the same time, or can be used to drill holes in a single direction of the side and the bottom.

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