A transformer core silicon steel sheet stacking device for an intelligent charging pile

Abstract

The present invention discloses a transformer core silicon steel sheet stacking device for an intelligent charging pile, comprising a horizontally arranged operating platform, a stacking rack with a square structure is arranged above the operating platform, and stacking mechanical arms are installed on the front and rear sides of the operating platform, a grabbing suction cup with a negative pressure adsorption effect is rotatably installed on the top of the stacking mechanical arm, and positioning cameras are fixedly installed on the left and right sides of the grabbing suction cup, a material conveyor belt is symmetrically rotatably installed on the front and rear sides of the upper surface of the operating platform, and an electric slider for driving the movement is fixedly installed on the lower surface of the stacking rack. The transformer core silicon steel sheet stacking device of the intelligent charging pile adopts a new structural design. During the up and down movement of the piston plate, the connecting rod on its lower surface drives the push rod to move telescopically, and under the action of the push rod, the extrusion plate fixed on its top extrude the stacked silicon steel sheet body, so as to achieve the purpose of arranging the silicon steel sheet body.

Description

Technical Field

[0001] The present invention relates to the technical field of charging pile transformer production, and in particular to a transformer core silicon steel sheet stacking device for an intelligent charging pile. Background Art

[0002] Charging piles are devices used to provide charging services for electric vehicles. They can be installed in different locations such as public places, commercial areas or private residences. They usually provide different charging speeds and power outputs based on different charging technologies and standards. Since charging piles have power regulation requirements, transformers need to be installed during charging to achieve the purpose of adjusting power by changing the voltage.

[0003] In the prior art, a Chinese patent with publication number CN117711799A discloses a core stacking device, including an operating table, a gantry is fixedly connected to the top of the operating table, a first motor is arranged on one side of the gantry, an output shaft of the first motor rotates and passes through one side of the gantry, the output shaft of the first motor is fixedly connected to a bidirectional screw rod, both ends of the bidirectional screw rod are sleeved with sliding plates, and a picking mechanism is arranged at the bottom of the two sliding plates, the picking mechanism includes an installation box, the top of the installation box is fixedly connected to the bottom of the sliding plate, a first bevel gear is rotatably passed through one side of the installation box, the first bevel gear is meshedly connected to the second bevel gear, the bottom end of the second bevel gear rotates and passes through the bottom of the installation box, a second motor is arranged on one side of the installation box, and the output shaft of the second motor is fixedly connected to the first bevel gear.

[0004] For example, in the prior art, a Chinese patent with publication number CN115985671A discloses a core stacking device for dry-type transformer core production, including a base assembly and a stacking mechanism, wherein a mounting component assembled with bolts is provided on the inner top side of the base assembly, and a limit mechanism assembled with bolts is provided on the outer sides of both ends of the base assembly. The device of the invention mainly utilizes the action of a fixed plug rod and a bolt pad to insert and fix the silicon steel sheet in the middle, and drives the threaded strip to run on the inner side of the threaded groove through the end handle, so that the moving plate and the shock-absorbing damping move the center plate to a position suitable for clamping and fixing, and fits the side of the silicon steel sheet through the center plate and the vertically distributed rubber strips, and then uses the first lifting blocks set in two groups of side groove plates to adjust the side support blocks connected by the bolt connecting blocks to fit and fix the outer sides of both ends of the silicon steel sheet, so as to have adaptive limit fixing for cores of various models and structures, thereby ensuring the processing accuracy of the dry-type transformer core production.

[0005] As another example in the prior art, a Chinese patent with publication number CN112151259A discloses an oil-immersed transformer core stacking device, including a base, a threaded rod and a connecting rod, a cylinder is provided on both sides of the base, and the end of the piston rod in the cylinder is fixedly connected to a fixing plate, a threaded hole is opened on the base, the threaded rod is threadedly matched with the threaded hole in the base, and the top end of the threaded rod is rotatably connected to a fixed sleeve core, the top end of the connecting rod is fixedly connected to a telescopic rod, and the top end of the telescopic rod is connected to the fixing plate, the bottom end of the connecting rod is fixedly connected to a clamping block, a spring is sleeved on the telescopic rod, and the two ends of the spring are respectively connected to the connecting rod and the fixing plate, the clamping block is made of rubber material, and a handle is welded to the bottom end of the threaded rod.

[0006] In combination with the above, it can be seen that in the prior art, a robot is generally used to grab silicon steel sheets for staggered stacking to realize the production of transformer cores. However, certain errors may occur during stacking during actual use, causing the lateral positions of the silicon steel sheets to be staggered, which will affect the overall neatness of the core without any sorting measures. Summary of the invention

[0007] The object of the present invention is to provide a transformer core silicon steel sheet stacking device for an intelligent charging pile, so as to solve the problem of poor stacking uniformity due to errors raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solution: a transformer core silicon steel sheet stacking device for a smart charging pile, comprising a horizontally arranged operating platform, a stacking rack with a square structure is arranged above the operating platform, and stacking mechanical arms are installed on the front and rear sides of the operating platform, and also includes:

[0009] A grabbing suction cup with a negative pressure adsorption effect is rotatably installed on the top of the stacking robot arm, and positioning cameras are fixedly installed on the left and right sides of the grabbing suction cup, and a material conveyor belt is symmetrically rotatably installed on the front and rear sides of the upper surface of the operating platform;

[0010] An electric slider for driving the stacking frame to move is fixedly installed on the lower surface of the stacking frame, and a left-right sliding structure is formed between the electric slider and the guide rail fixedly installed on the upper surface of the operating platform. Silicon steel sheet bodies are stacked in an interlaced manner above the stacking frame, and limiting columns for limiting the silicon steel sheet bodies are fixedly installed at the four corners of the upper surface of the stacking frame;

[0011] A blower box is fixedly installed at the middle position of the upper surface of the stacking frame, and a cleaning nozzle for cleaning the debris on the outer surface of the silicon steel sheet body is fixedly installed on the outer surface of the upper end of the blower box, and a piston mechanism for supplying air to the cleaning nozzle is arranged inside the blower box;

[0012] The lower end of the bellows box is provided with a finishing mechanism for laterally extruding the main body of the silicon steel sheet;

[0013] A lifting plate for lifting the stacked silicon steel sheets upward is installed inside the stacking frame, and a lifting mechanism for driving the lifting plate to move up and down is arranged below the stacking frame.

[0014] Preferably, the piston mechanism includes a piston plate which is slidably mounted inside the bellows, and a permanent magnet is fixedly mounted on the upper surface of the piston plate, and an electromagnet is fixedly mounted on the upper end of the bellows, and the positions of the permanent magnet and the electromagnet correspond to each other up and down, and the magnetic effect between the electromagnet and the permanent magnet is used to move the piston plate up and down.

[0015] Preferably, the upper space of the blower box is interconnected with the cleaning nozzle, and the cleaning nozzle corresponds to the main body of the stacked silicon steel sheets, and the cleaning nozzle sprays airflow to clean the debris on the surface of the silicon steel sheets.

[0016] Preferably, the sorting mechanism includes an extrusion plate installed on the outside of the blower box, and a push rod for promoting its movement is fixedly installed on the side of the extrusion plate, and the extrusion plate is provided with four silicon steel sheet bodies corresponding to four directions respectively, and the silicon steel sheets are squeezed by the extrusion plate to achieve the purpose of sorting.

[0017] Preferably, a through-type sliding structure is formed between the push rod and the limit block, the limit block is fixedly mounted on the upper surface of the stacking rack, and a return spring located outside the push rod is fixedly mounted on the side of the limit block.

[0018] Preferably, a connecting rod is rotatably installed at the rear end of the push rod, and the rear end of the push rod penetrates into the interior of the blower box, and the upper end of the connecting rod is rotatably connected to the lower surface of the piston plate, and the extrusion plate is driven to move through the cooperation between the piston plate and the connecting rod.

[0019] Preferably, an extrusion airbag made of soft rubber material is fixedly mounted on the outer surface of the extrusion plate, and the extrusion airbag forms a communication structure with the lower space of the blower box through a delivery hose fixedly mounted thereon.

[0020] Preferably, the lifting mechanism includes a movable plate installed directly below the stacking rack, and the movable plate is fixedly connected to the lifting plate through a fixing rod on its side, and the lifting plate is used to lift the stacked iron cores upward.

[0021] Preferably, guide columns are fixedly installed at the four corners of the lower surface of the stacking frame, and the guide columns are slidably connected to the movable plate, and a lifting screw is rotatably installed at the middle position of the lower surface of the stacking frame.

[0022] Preferably, a transmission gear is coaxially fixedly installed on the bottom end of the lifting screw rod, and the transmission gear is meshingly connected with a fixed rack, and the fixed rack is fixedly installed on the upper surface of the operating platform. The meshing between the fixed rack and the transmission gear is utilized to drive the lifting screw rod to rotate, thereby realizing the lifting and lowering movement of the movable plate.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: the transformer core silicon steel sheet stacking device of the smart charging pile adopts a new structural design, the specific contents of which are as follows:

[0024] 1. The main body of the silicon steel sheet is transported to the grabbing position through the material conveyor belt, and then the stacking robot arm cooperates with the grabbing suction cup to grab the main body of the silicon steel sheet and stack it on the stacking rack. The limit column is used to limit its position during the stacking process. No manual operation is required in this process, achieving a high degree of automation;

[0025] Furthermore, during the stacking process, the electromagnet in the blower box periodically switches the magnetic direction, so that the permanent magnet drives the piston plate to move up and down reciprocatingly under the action of magnetic attraction and repulsion, and the movement of the piston plate is used to achieve the purpose of blowing, so that the air in the blower box is pressurized and ejected from the cleaning nozzle, and the debris on the surface of the silicon steel sheet body is cleaned under the action of the airflow (the debris may be generated during production, or may be contaminated during storage);

[0026] Furthermore, during the up and down movement of the piston plate, the connecting rod on its lower surface drives the push rod to telescope (the push rod is limited by a limit block). Under the action of the push rod, the top of the extrusion plate is fixedly installed to extrude the stacked silicon steel sheet body, thereby achieving the purpose of arranging the silicon steel sheet body. At the same time, during extrusion, the air in the blower box enters the extrusion airbag through the delivery hose, causing the extrusion airbag to expand, and the elastic effect of the extrusion airbag is used to protect the side of the silicon steel sheet body.

[0027] 2. When the stacking rack moves to the left unloading position by the cooperation between the electric slider and the guide rail, the transmission gear and the fixed rack mesh with each other, so that the transmission gear drives the lifting screw to rotate, and the movable plate moves upward under the action of the lifting screw, so that the movable plate drives the lifting plate to move synchronously, and the stacked iron cores are lifted to facilitate unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the stacking robot structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the stacking frame structure of the present invention;

[0031] Figure 4It is a schematic diagram of the cross-sectional structure of the bellows box of the present invention;

[0032] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0033] Figure 6 This is a schematic diagram of the connection relationship between the push rod and the connecting rod of the present invention;

[0034] Figure 7 This is a schematic diagram of the structure of the extruded airbag of the present invention;

[0035] Figure 8 This is a structural schematic diagram of the lifting plate of the present invention in a lifting state;

[0036] Fig. 9 It is a schematic diagram of the lower surface structure of the stacking rack of the present invention;

[0037] Fig.10 It is a schematic diagram of the meshing relationship between the transmission gear and the fixed rack of the present invention.

[0038] In the figure: 1. operating platform; 2. stacking rack; 3. stacking robot arm; 4. grabbing suction cup; 5. positioning camera; 6. electric slider; 7. guide rail; 8. material conveyor belt; 9. silicon steel sheet body; 10. limit column; 11. blower box; 12. cleaning nozzle; 13. piston plate; 14. permanent magnet; 15. electromagnet; 16. push rod; 17. extrusion plate; 18. connecting rod; 19. limit block; 20. reset spring; 21. extrusion airbag; 22. conveying hose; 23. lifting plate; 24. fixed rod; 25. movable plate; 26. guide column; 27. lifting screw; 28. transmission gear; 29. ​​fixed rack. DETAILED DESCRIPTION

[0039] 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.

[0040] Example 1: Please refer to Figure 1-Figure 4In order to solve the problem that the traditional device uses silicon steel sheets with debris on the surface that affects the stacking effect, this embodiment provides the following technical solutions, using the airflow sprayed by the cleaning nozzle 12 to clean the debris, specifically disclosed: a horizontally arranged operating platform 1, a stacking rack 2 with a square structure is arranged above the operating platform 1, and a stacking robot arm 3 is installed on the front and rear sides of the operating platform 1, a grabbing suction cup 4 with a negative pressure adsorption effect is rotatably installed on the top of the stacking robot arm 3, and a positioning camera 5 is fixedly installed on the left and right sides of the grabbing suction cup 4, a material conveyor belt 8 is symmetrically rotatably installed on the front and rear sides of the upper surface of the operating platform 1, an electric slider 6 for driving it to move is fixedly installed on the lower surface of the stacking rack 2, and the electric slider 6 and the guide rail 7 fixedly installed on the upper surface of the operating platform 1 form a left-right sliding structure, and the silicon steel is staggered on the stacking rack 2. The stacking rack 2 has a main body 9 and limit columns 10 for limiting the main body 9 of the silicon steel sheet are fixedly installed at the four corners of the upper surface of the stacking rack 2, a blow box 11 is fixedly installed at the middle position of the upper surface of the stacking rack 2, and a cleaning nozzle 12 for cleaning the outer surface of the silicon steel sheet main body 9 is fixedly installed on the upper outer surface of the blow box 11, and a piston mechanism for supplying air to the cleaning nozzle 12 is arranged inside the blow box 11, the piston mechanism includes a piston plate 13 fitted and slidably installed inside the blow box 11, and a permanent magnet 14 is fixedly installed on the upper surface of the piston plate 13, and an electromagnet 15 is fixedly installed at the upper end of the blow box 11, the positions of the permanent magnet 14 and the electromagnet 15 correspond to each other, the upper space of the blow box 11 and the cleaning nozzle 12 are connected to each other, and the cleaning nozzle 12 corresponds to the position of the stacked silicon steel sheet main body 9.

[0041] When using the device, firstly, the rotation of the material conveyor belt 8 is utilized to convey a single silicon steel sheet body 9 to the stacking position, and then the stacking robot arm 3 is turned on, and the grabbing suction cup 4 at the front end of the stacking robot arm 3 is utilized to absorb and grab the silicon steel sheet body 9 (in this process, the positioning camera 5 is utilized for positioning), and the grabbed silicon steel sheet body 9 is stacked on the stacking rack 2, and during the stacking process, the limiting column 10 on the upper surface of the stacking rack 2 is utilized to limit the position, and at the same time, the electromagnet 15 at the upper end of the blow box 11 periodically switches the current direction to change the magnetic direction, and utilizes the magnetic effect between the electromagnet 15 and the permanent magnet 14 to drive the piston plate 13 to move back and forth up and down inside the blow box 11, thereby achieving the purpose of blowing, and the blown air is pressurized and ejected through the cleaning nozzle 12, thereby achieving the purpose of cleaning the surface debris of the silicon steel sheet body 9 during stacking.

[0042] Example 2: Please refer to Figure 4-Figure 7In order to solve the problem of uneven stacking due to errors in traditional devices, this embodiment provides the following technical solutions, which utilize a sorting mechanism to squeeze and sort the stacked silicon steel sheets. Specifically disclosed is that: a sorting mechanism for horizontally squeezing the silicon steel sheet body 9 is arranged on the outside of the lower end of the blower box 11, and the sorting mechanism includes an extrusion plate 17 installed on the outside of the blower box 11, and a push rod 16 for pushing its activity is fixedly installed on the side of the extrusion plate 17, and the extrusion plate 17 is provided with a total of four silicon steel sheet bodies 9 corresponding to four directions, and a through hole is formed between the push rod 16 and the limit block 19. A through-type sliding structure, a limit block 19 is fixedly installed on the upper surface of the stacking rack 2, and a return spring 20 located outside the push rod 16 is fixedly installed on the side of the limit block 19, a connecting rod 18 is rotatably installed at the rear end of the push rod 16, and the rear end of the push rod 16 penetrates into the interior of the blow box 11, and the upper end of the connecting rod 18 is rotatably connected to the lower surface of the piston plate 13, an extrusion airbag 21 made of soft rubber material is fixedly installed on the outer surface of the extrusion plate 17, and the extrusion airbag 21 forms a connecting structure with the lower space of the blow box 11 through a conveying hose 22 fixedly installed therewith.

[0043] During the up and down movement of the piston plate 13, the connecting rod 18 rotating on its lower surface drives the push rod 16 to move synchronously. At this time, the push rod 16 realizes telescopic movement under the limiting action of the limit block 19 and the elastic action of the return spring 20. The push rod 16 drives the extrusion plate 17 at its top to move synchronously, so that the extrusion plate 17 squeezes the stacked silicon steel sheet main body 9, so as to achieve the purpose of arranging the silicon steel sheet main body 9 and stacking them neatly. During the extrusion process, the piston plate 13 moves downward, so that the air inside the lower end of the blower box 11 is transported to the extrusion airbag 21 through the delivery hose 22, so that the extrusion airbag 21 expands, so that the extrusion airbag 21 is used to further squeeze the silicon steel sheet main body 9. At the same time, the soft elastic material of the extrusion airbag 21 can protect the side of the silicon steel sheet main body 9 to avoid damage.

[0044] Example 3: Please refer to Figure 8-Figure 10In order to solve the problem that it is inconvenient to remove the stacked iron core with the traditional device, the present embodiment provides the following technical solution. When unloading, the iron core is lifted upward by using the lifting plate 23. Specifically, the stacking frame 2 is provided with a lifting plate 23 for lifting the stacked silicon steel sheet body 9 upward, and a lifting mechanism for driving the lifting plate 23 to move up and down is provided under the stacking frame 2. The lifting mechanism includes a movable plate 25 installed directly under the stacking frame 2, and the movable plate 25 is fixedly connected to the lifting plate 23 through a fixed rod 24 on its side. Guide columns 26 are fixedly installed at the four corners of the lower surface of the stacking frame 2, and the guide columns 26 and the movable plate 25 are slidably connected. A lifting screw 27 is rotatably installed at the middle position of the lower surface of the stacking frame 2, and a transmission gear 28 is coaxially fixedly installed at the bottom end of the lifting screw 27, and the transmission gear 28 is meshed with a fixed rack 29, and the fixed rack 29 is fixedly installed on the upper surface of the operating platform 1.

[0045] After stacking, the silicon steel sheet body 9 forms a complete transformer core. Then, the electric slider 6 is used to slide on the guide rail 7 to move the stacking rack 2 to the left unloading position. When the transmission gear 28 moves to the meshing position with the fixed rack 29, the transmission gear 28 rotates under the meshing action, thereby driving the lifting screw 27 fixedly installed therewith to rotate synchronously. Under the action of the lifting screw 27, the guide column 26 cooperates to make the movable plate 25 move upward. At this time, under the action of the fixed rod 24, the movable plate 25 drives the lifting plate 23 to move upward synchronously, so that the lifting plate 23 is used to lift the core upward, which is convenient for the subsequent removal of the core by a forklift or other tools. After the stacking rack 2 returns to its position, the meshing is used again to make the movable plate 25 drive the lifting plate 23 to reset downward.

[0046] 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.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transformer core silicon steel sheet stacking device for a smart charging pile, comprising a horizontally arranged operating platform (1), a stacking rack (2) in a square structure is arranged above the operating platform (1), and stacking mechanical arms (3) are installed on both sides of the operating platform (1), characterized in that: Also includes: A grabbing suction cup (4) with a negative pressure adsorption effect is rotatably mounted on the top of the stacking robot arm (3), and positioning cameras (5) are fixedly mounted on the left and right sides of the grabbing suction cup (4), and a material conveyor belt (8) is symmetrically rotatably mounted on the front and rear sides of the upper surface of the operating platform (1); An electric slider (6) for driving the stacking frame (2) to move is fixedly mounted on the lower surface of the stacking frame (2), and a left-right sliding structure is formed between the electric slider (6) and a guide rail (7) fixedly mounted on the upper surface of the operating platform (1). Silicon steel sheet bodies (9) are stacked in an alternating manner on the stacking frame (2), and limiting columns (10) for limiting the position of the silicon steel sheet bodies (9) are fixedly mounted at the four corners of the upper surface of the stacking frame (2); A blow box (11) is fixedly mounted in the middle of the upper surface of the stacking frame (2), and a cleaning nozzle (12) for cleaning debris from the outer surface of the silicon steel sheet body (9) is fixedly mounted on the upper outer surface of the blow box (11), and a piston mechanism for supplying air to the cleaning nozzle (12) is arranged inside the blow box (11); The lower end of the bellows box (11) is provided with a finishing mechanism for laterally extruding the silicon steel sheet body (9); A lifting plate (23) for lifting the stacked silicon steel sheet bodies (9) upwards is installed inside the stacking frame (2), and a lifting mechanism for driving the lifting plate (23) to move up and down is arranged below the stacking frame (2); The arranging mechanism comprises an extrusion plate (17) mounted on the outside of the blower box (11), and a push rod (16) for pushing the extrusion plate (17) is fixedly mounted on the side of the extrusion plate (17), and the extrusion plate (17) is provided with four silicon steel sheet bodies (9) corresponding to four directions respectively; A through-type sliding structure is formed between the push rod (16) and the limit block (19); the limit block (19) is fixedly mounted on the upper surface of the stacking frame (2); and a return spring (20) located outside the push rod (16) is fixedly mounted on the side of the limit block (19); A connecting rod (18) is rotatably mounted on the rear end of the push rod (16), and the rear end of the push rod (16) penetrates into the interior of the bellows box (11), and the upper end of the connecting rod (18) is rotatably connected to the lower surface of the piston plate (13); An extrusion airbag (21) made of soft rubber material is fixedly mounted on the outer surface of the extrusion plate (17), and the extrusion airbag (21) forms a communication structure with the lower space of the blower box (11) via a delivery hose (22) fixedly mounted thereto.

2. The transformer core silicon steel sheet stacking device of a smart charging pile according to claim 1, characterized in that: The piston mechanism comprises a piston plate (13) which is fitted and slidably mounted inside a bellows box (11), a permanent magnet (14) being fixedly mounted on the upper surface of the piston plate (13), and an electromagnet (15) being fixedly mounted on the upper end of the bellows box (11), wherein the positions of the permanent magnet (14) and the electromagnet (15) correspond to each other in an upper and lower manner.

3. The transformer core silicon steel sheet stacking device of a smart charging pile according to claim 2, characterized in that: The upper space of the blower box (11) and the cleaning nozzle (12) are in communication with each other, and the cleaning nozzle (12) and the stacked silicon steel sheet main body (9) are located in corresponding positions.

4. The transformer core silicon steel sheet stacking device of a smart charging pile according to claim 1, characterized in that: The lifting mechanism comprises a movable plate (25) installed directly below the stacking frame (2), and the movable plate (25) is fixedly connected to the lifting plate (23) via a fixing rod (24) on its side.

5. The transformer core silicon steel sheet stacking device of a smart charging pile according to claim 4, characterized in that: Guide columns (26) are fixedly mounted at the four corners of the lower surface of the stacking frame (2), and a sliding connection is formed between the guide columns (26) and the movable plate (25), and a lifting screw rod (27) is rotatably mounted at the middle position of the lower surface of the stacking frame (2).

6. The transformer core silicon steel sheet stacking device of a smart charging pile according to claim 5, characterized in that: A transmission gear (28) is coaxially fixedly mounted on the bottom end of the lifting screw rod (27), and the transmission gear (28) is meshingly connected with a fixed rack (29), and the fixed rack (29) is fixedly mounted on the upper surface of the operating platform (1).

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