Perforating device for transformer installation

Abstract

The utility model relates to the technical field of transformers, in particular to a punching device for transformer installation, which comprises a punching box, a punching mechanism is arranged in the punching box, the punching mechanism is composed of a drill bit, a driving motor, a telescopic rod, an electric push rod, a connecting plate and a rotating column, and a moving mechanism is arranged in the punching box. The device comprises a trepanning box, a moving mechanism is arranged in the trepanning box, a moving assembly and a servo motor are arranged in the moving mechanism, a labor-saving clamping mechanism is arranged at the bottom in the trepanning box, a labor-saving clamping part and a clamping plate are arranged in the labor-saving clamping mechanism, a dismounting mechanism is arranged in the trepanning box, and the dismounting mechanism is composed of a dismounting component and an elastic clamping block. According to the transformer mounting rack punching device, the punching device can rapidly punch the two ends of a transformer mounting rack, so that the working efficiency of the punching device in use is improved, the labor intensity of the punching device when clamping the transformer mounting rack is reduced, and the convenience degree of the punching device when a drill bit is disassembled and assembled is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a punching device for transformer installation. Background Art

[0002] A transformer is a device that transforms AC voltage, current and impedance. When AC current flows through the primary coil, AC magnetic flux is generated in the iron core (or magnetic core), inducing voltage (or current) in the secondary coil. A mounting frame is fixed at the bottom of the transformer. The mounting frame is generally installed and fixed through mounting holes on the surface. The mounting holes are generally opened by a punching device.

[0003] After searching, the patent number is 202021747135.1, and the name is a utility model of a punching device for transformer installation, including a rotating wheel, a U-shaped bracket and a stable base, the bottom of the stable base is bonded with an elastic leveling pad by polyurethane glue, and a U-shaped bracket is welded to the top of the stable base. A threaded sleeve is provided on the U-shaped bracket, and a working screw is passed through the threaded sleeve, a connecting sleeve is welded at the bottom of the working screw, and a drill rod is provided in the connecting sleeve, a scale is installed on the inner side of the U-shaped bracket by screws, and the outer layer of the U-shaped bracket is provided with an anti-corrosion coating.

[0004] Through research and analysis, it is found that the punching device for transformer installation has diverse functions, simple operation, and is easy to produce. It meets various needs in use and is suitable for wide promotion and use. However, there are still some disadvantages to a certain extent: the mounting holes of the transformer mounting frame are generally opened at both ends, and the punching structure of the general punching device is in a fixed position and is not easy to move. The livestock staff manually moves the transformer mounting frame, which is relatively slow, thus affecting the work efficiency of the punching device when using it; the transformer mounting frame needs to be clamped and limited before punching, and the general punching device needs to adjust and fix the clamps on both sides of the transformer mounting frame in turn, which is more laborious, which easily leads to a high labor intensity when the punching device clamps the transformer mounting frame; the drill bit used to open holes in the transformer mounting frame is generally disassembled and assembled by screws. During disassembly and assembly, one hand needs to fix the drill bit and the other hand needs to rotate the screw, which is more cumbersome, thus affecting the convenience of the punching device when disassembling and assembling the drill bit. Utility Model Content

[0005] The utility model aims to provide a punching device for transformer installation, so as to solve the problems in the background technology mentioned above, such as low working efficiency when using the punching device, high labor intensity when clamping the transformer mounting frame, and low convenience when disassembling and assembling the drill bit.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a punching device for transformer installation, comprising a hole punching box, a control row of keys being installed on the surface of the hole punching box, a hole punching mechanism being arranged inside the hole punching box, the hole punching mechanism being composed of a drill bit, a driving motor, a telescopic rod, an electric push rod, a connecting plate and a rotating column, a moving mechanism being arranged inside the hole punching box, the moving mechanism being composed of a moving component and a servo motor, a labor-saving clamping mechanism being arranged at the bottom position inside the hole punching box, the labor-saving clamping mechanism being composed of a labor-saving clamping component and a clamping plate, a disassembly and assembly mechanism being arranged inside the hole punching box, the disassembly and assembly mechanism being composed of a disassembly and assembly component and an elastic card block.

[0007] Preferably, an electric push rod is provided inside the perforated box, the input end of the electric push rod is electrically connected to the output end of the control row key, a connecting plate is fixed at one end of the electric push rod, and telescopic rods are fixed on both sides of the surface of the connecting plate.

[0008] Preferably, a driving motor is installed at the bottom of the connecting plate, the input end of the driving motor is electrically connected to the output end of the control row key, the output end of the driving motor is fixed with a rotating column through a coupling, and a drill bit is arranged at the bottom of the rotating column.

[0009] Preferably, a moving component is provided inside the hole box, and the moving component is driven by a servo motor. The servo motor is installed on the surface of the hole box, the input end of the servo motor is electrically connected to the output end of the control row key, and the output end of the servo motor is fixed with a rotating shaft through a coupling.

[0010] Preferably, the interior of the moving component includes a toothed plate, a gear and a guide groove, the interior of the perforated box is provided with a toothed plate, and the surface of the toothed plate is fixedly connected to the surfaces of the telescopic rod and the electric push rod respectively.

[0011] Preferably, guide grooves are provided on the inner walls on both sides of the hole box, and the guide grooves are slidably matched with the electric push rod and the toothed plate respectively. The hole box is internally rotatably connected with a gear, one end of the gear is fixedly connected to one end of the rotating shaft, and the gear and the toothed plate are meshed with each other.

[0012] Preferably, clamping plates are provided on both sides of the inside of the perforated box, and a labor-saving clamping component is provided at the bottom of the inside of the perforated box.

[0013] Preferably, the labor-saving clamping component consists of a positive screw, a slide groove, a reverse screw and an adjusting screw block. A slide groove is provided at the bottom position inside the perforated box, and one side of the perforated box is rotatably connected with a positive screw, one end of the positive screw passes through the perforated box and the slide groove in sequence and is fixed with a reverse screw, one end of the reverse screw is rotatably connected to the inner wall of the perforated box, and the surfaces of the positive screw and the reverse screw are both provided with adjusting screw blocks, the adjusting screw blocks are slidably matched with the slide groove, and the adjusting screw blocks are respectively threadedly matched with the positive screw and the reverse screw, and one end of the adjusting screw block is fixedly connected to one end of the splint.

[0014] Preferably, the elastic blocks are respectively fixed on both sides of the rotating column, and a disassembly component is provided inside the perforated box.

[0015] Preferably, the disassembly and assembly component is provided with a socket, a fastening bolt and a slot inside, the socket is opened at one end of the drill bit, the socket and the rotating column are plugged into each other, slots are opened on both sides of the inner wall of the socket, the slots and the elastic clamping blocks are snap-fitted with each other, the fastening bolts are respectively threadedly connected to both sides of the drill bit, and one end of the fastening bolt passes through the drill bit and is fastened to the surface thread of the rotating column.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the punching device for transformer installation not only enables the punching device to quickly perform punching operations on both ends of the transformer mounting frame, thereby improving the working efficiency of the punching device when in use, reducing the labor intensity when the punching device clamps the transformer mounting frame, but also improves the convenience of disassembling and assembling the drill bit of the punching device;

[0017] 1. By providing a moving mechanism, after the punching of one end of the transformer mounting frame is completed, the control row of keys can be operated to control the servo motor to work, and the gear is driven to rotate under the action of the servo motor, and the gear and the tooth plate are driven to slide along the guide groove under the meshing action of the gear and the tooth plate, and the hole-punching mechanism is driven to move synchronously, so that the hole-punching mechanism moves to the hole to be punched at the other end of the transformer mounting frame, and then the hole-punching mechanism is used to punch the other end of the transformer mounting frame, so as to realize the moving function of the punching device on the hole-punching mechanism, so that the punching device can quickly punch holes at both ends of the transformer mounting frame, thereby improving the working efficiency of the punching device when in use;

[0018] 2. By providing a labor-saving clamping mechanism, the transformer mounting frame to be punched is placed between the clamping plates, and then the positive screw is rotated, and the adjusting screw block is driven to slide along the slide groove under the cooperation of the threads of the positive screw and the adjusting screw block. At the same time, the positive screw drives the reverse screw to rotate, and the adjusting screw block is driven to slide along the slide groove under the cooperation of the threads of the positive screw and the adjusting screw block. Since the threads of the positive screw and the reverse screw are in opposite directions, the two adjusting screw blocks slide synchronously relative to each other, driving the clamping plates to move synchronously, and clamping and fixing the two ends of the transformer mounting frame at the same time, so as to realize the function of the punching device to fix the transformer mounting frame with labor-saving, thereby reducing the labor intensity when the punching device clamps the transformer mounting frame;

[0019] 3. By providing a disassembly and assembly mechanism, the drill bit is placed under the rotating column, and then the socket is put onto the surface of the rotating column. Then the drill bit is rotated to rotate the slot to the side of the elastic card block. At this time, the rotating column and the drill bit are quickly fixed under the engagement of the elastic card block and the slot. Then the fastening bolt is rotated to fasten the rotating column and the drill bit, so as to realize the function of facilitating the disassembly and assembly of the drill bit of the punching device, thereby improving the convenience of the punching device when disassembling and assembling the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0022] Figure 3 It is an enlarged structural diagram of the hole-opening mechanism of the utility model;

[0023] Figure 4 It is an enlarged structural diagram of the disassembly and assembly mechanism of the utility model.

[0024] In the figure: 1. hole opening box; 101. control row key; 2. moving mechanism; 201. moving assembly; 2011. tooth plate; 2012. gear; 2013. guide groove; 202. servo motor; 3. labor-saving clamping mechanism; 301. labor-saving clamping component; 3011. positive screw; 3012. slide groove; 3013. reverse screw; 3014. adjusting screw block; 302. clamping plate; 4. hole opening mechanism; 401. drill bit; 402. driving motor; 403. telescopic rod; 404. electric push rod; 405. connecting plate; 406. rotating column; 5. disassembly and assembly mechanism; 501. disassembly and assembly component; 5011. socket; 5012. fastening bolt; 5013. slot; 502. elastic block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. In addition, the terms "first", "second", "third", "upper, lower, left, right", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. At the same time, in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connected" 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 directly connected or indirectly connected through an intermediate medium. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] The utility model provides a structure of a punching device for transformer installation as follows Figure 1 , Figure 2 and Figure 3 As shown, it includes a hole punching box 1, a control row key 101 is installed on the surface of the hole punching box 1, and the model of the control row key 101 can be selected from the LA series. The hole punching box 1 is provided with a hole punching mechanism 4 inside, and the hole punching mechanism 4 is composed of a drill bit 401, a drive motor 402, a telescopic rod 403, an electric push rod 404, a connecting plate 405 and a rotating column 406. The hole punching box 1 is provided with an electric push rod 404 inside, and the model of the electric push rod 404 can be selected from the TA series. The input end of the electric push rod 404 is connected to the control The output end of the control row of keys 101 is electrically connected, a connecting plate 405 is fixed to one end of the electric push rod 404, telescopic rods 403 are fixed to both sides of the surface of the connecting plate 405, a driving motor 402 is installed at the bottom of the connecting plate 405, and the model of the driving motor 402 can be selected from the JO series. The input end of the driving motor 402 is electrically connected to the output end of the control row of keys 101, and a rotating column 406 is fixed to the output end of the driving motor 402 through a coupling, and a drill bit 401 is arranged at the bottom of the rotating column 406.

[0027] When in use, the control row of keys 101 is operated to control the driving motor 402 and the electric push rod 404 to work, and the connecting plate 405 is driven to move downward under the action of the electric push rod 404, and the connecting plate 405 is guided under the action of the telescopic rod 403, so that the connecting plate 405 drives the driving motor 402 to move downward, and drives the drill bit 401 downward. At the same time, under the action of the connecting plate 405, the drill bit 401 can be driven to rotate to perform a drilling operation on the surface of the transformer mounting frame, so as to realize the drilling function of the drilling device on the transformer mounting frame.

[0028] Furthermore, if Figure 2As shown, the opening box 1 is provided with a moving mechanism 2 inside, and the moving mechanism 2 includes a moving component 201 and a servo motor 202 inside. The opening box 1 is provided with a moving component 201 inside, and the moving component 201 is driven by the servo motor 202. The model of the servo motor 202 can be selected from the SZ series. The servo motor 202 is installed on the surface of the opening box 1. The input end of the servo motor 202 is electrically connected to the output end of the control row key 101. The output end of the servo motor 202 is fixed with a rotating shaft through a coupling. The interior of the moving component 201 includes There are toothed plates 2011, gears 2012 and guide grooves 2013. The hole box 1 is provided with toothed plates 2011 inside. The surfaces of the toothed plates 2011 are respectively fixedly connected to the surfaces of the telescopic rod 403 and the electric push rod 404. The inner walls on both sides of the hole box 1 are provided with guide grooves 2013. The guide grooves 2013 are respectively slidably matched with the electric push rod 404 and the toothed plates 2011. The hole box 1 is rotatably connected with a gear 2012 inside. One end of the gear 2012 is fixedly connected to one end of the rotating shaft, and the gear 2012 and the toothed plates 2011 are meshed with each other.

[0029] When in use, after the punching of one end of the transformer mounting frame is completed, the control row of keys 101 can be operated to make the control row of keys 101 control the servo motor 202 to work, and the gear 2012 is driven to rotate under the action of the servo motor 202, and the gear 2012 is driven to slide along the guide groove 2013 under the meshing action of the gear 2012 and the tooth plate 2011, and the hole-punching mechanism 4 is driven to move synchronously, so that the hole-punching mechanism 4 moves to the hole to be punched at the other end of the transformer mounting frame, and then the hole-punching operation is performed on the other end of the transformer mounting frame through the hole-punching mechanism 4, so as to realize the movement function of the hole-punching device on the hole-punching mechanism 4.

[0030] Furthermore, if Figure 2 As shown, a labor-saving clamping mechanism 3 is arranged at the bottom position inside the perforated box 1, and the interior of the labor-saving clamping mechanism 3 includes a labor-saving clamping component 301 and a clamping plate 302. Clamping plates 302 are arranged on both sides of the perforated box 1. A labor-saving clamping component 301 is arranged at the bottom position inside the perforated box 1. The labor-saving clamping component 301 is composed of a positive screw 3011, a slide groove 3012, a reverse screw 3013 and an adjusting screw block 3014. A slide groove 3012 is arranged at the bottom position inside the perforated box 1, and one side of the perforated box 1 is rotatably connected with a positive screw Rod 3011, one end of the positive screw 3011 passes through the perforated box 1 and the slide groove 3012 in sequence and is fixed with a reverse screw 3013, one end of the reverse screw 3013 is rotatably connected to the inner wall of the perforated box 1, the surfaces of the positive screw 3011 and the reverse screw 3013 are both provided with an adjusting screw block 3014, the adjusting screw block 3014 and the slide groove 3012 slide with each other, the adjusting screw block 3014 is threadedly matched with the positive screw 3011 and the reverse screw 3013 respectively, and one end of the adjusting screw block 3014 is fixedly connected to one end of the splint 302.

[0031] When in use, the transformer mounting frame to be punched is placed between the clamping plates 302, and then the positive screw 3011 is rotated. The adjusting screw block 3014 is driven to slide along the slide groove 3012 under the cooperation of the threads of the positive screw 3011 and the adjusting screw block 3014. At the same time, the positive screw 3011 drives the reverse screw 3013 to rotate, and the adjusting screw block 3014 is driven to slide along the slide groove 3012 under the cooperation of the threads of the positive screw 3011 and the adjusting screw block 3014. Since the threads of the positive screw 3011 and the reverse screw 3013 are in opposite directions, the two adjusting screw blocks 3014 slide synchronously relative to each other, driving the clamping plates 302 to move synchronously, and at the same time, the two ends of the transformer mounting frame are clamped and fixed, so as to realize the function of the punching device to save effort in fixing the transformer mounting frame.

[0032] Furthermore, if Figure 4 As shown, the opening box 1 is provided with a disassembly and assembly mechanism 5 inside, which consists of a disassembly and assembly component 501 and an elastic block 502. The elastic block 502 is respectively fixed on both sides of the rotating column 406. The opening box 1 is provided with a disassembly and assembly component 501 inside, and the disassembly and assembly component 501 is provided with a socket 5011, a fastening bolt 5012 and a slot 5013 inside. The socket 5011 is provided at one end of the drill bit 401, and the socket 5011 and the rotating column 406 are plugged into each other. Slots 5013 are provided on both sides of the inner wall of the socket 5011, and the slot 5013 and the elastic block 502 are plugged into each other. The fastening bolts 5012 are respectively threadedly connected to both sides of the drill bit 401, and one end of the fastening bolt 5012 passes through the drill bit 401 and is threadedly fastened to the surface of the rotating column 406.

[0033] When in use, first open the box door on the surface of the hole-punching box 1, then place the drill bit 401 under the rotating column 406, then put the socket 5011 onto the surface of the rotating column 406, then rotate the drill bit 401 to rotate the slot 5013 to the side of the elastic block 502. At this time, the rotating column 406 and the drill bit 401 are quickly fixed under the engagement of the elastic block 502 and the slot 5013, and then rotate the fastening bolt 5012 to fasten the rotating column 406 and the drill bit 401, so as to realize the function of the punching device to facilitate the disassembly and assembly of the drill bit 401.

[0034] Working principle: When in use, first open the box door on the surface of the hole-punching box 1, then place the drill bit 401 under the rotating column 406, then put the socket 5011 onto the surface of the rotating column 406, then rotate the drill bit 401 to rotate the slot 5013 to the side of the elastic block 502. At this time, the rotating column 406 and the drill bit 401 are quickly fixed under the engagement of the elastic block 502 and the slot 5013, and then rotate the fastening bolt 5012 to fasten the rotating column 406 and the drill bit 401, so as to realize the function of facilitating the disassembly and assembly of the drill bit 401 by the punching device, thereby improving the convenience of the punching device when disassembling and assembling the drill bit 401.

[0035] Then, the transformer mounting frame to be punched is placed between the clamping plates 302, and then the positive screw 3011 is rotated. Under the cooperation of the threads of the positive screw 3011 and the adjusting screw block 3014, the adjusting screw block 3014 is driven to slide along the slide groove 3012. At the same time, the positive screw 3011 drives the reverse screw 3013 to rotate. Under the cooperation of the threads of the positive screw 3011 and the adjusting screw block 3014, the adjusting screw block 3014 is driven to slide along the slide groove 3012. Since the threads of the positive screw 3011 and the reverse screw 3013 are in opposite directions, the two adjusting screw blocks 3014 slide synchronously relative to each other, driving the clamping plates 302 to move synchronously, and at the same time, the two ends of the transformer mounting frame are clamped and fixed, so as to realize the function of the punching device to fix the transformer mounting frame with effort, thereby reducing the labor intensity when the punching device clamps the transformer mounting frame.

[0036] Subsequently, the control row of keys 101 is operated to control the driving motor 402 and the electric push rod 404 to work, and the connecting plate 405 is driven to move downward under the action of the electric push rod 404, and the connecting plate 405 is guided under the action of the telescopic rod 403, so that the connecting plate 405 drives the driving motor 402 to move downward, and drives the drill bit 401 downward. At the same time, under the action of the connecting plate 405, the drill bit 401 can be driven to rotate to perform a drilling operation on the surface of the transformer mounting frame, so as to realize the drilling function of the drilling device on the transformer mounting frame.

[0037] After the punching at one end of the transformer mounting frame is completed, the control row of keys 101 can be operated to control the servo motor 202 to work, and the gear 2012 is driven to rotate under the action of the servo motor 202, and the gear 2012 is driven to slide along the guide groove 2013 under the meshing action of the gear 2012 and the tooth plate 2011, so as to drive the opening mechanism 4 to move synchronously, so that the opening mechanism 4 moves to the hole to be punched at the other end of the transformer mounting frame, and then the other end of the transformer mounting frame is punched by the opening mechanism 4, so as to realize the moving function of the punching device on the opening mechanism 4, so that the punching device can quickly punch holes at both ends of the transformer mounting frame, thereby improving the working efficiency of the punching device when in use, and finally completing the use of the punching device.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A punching device for transformer installation, comprising a punching box (1), characterized in that: The surface of the hole opening box (1) is installed with a control row of keys (101); the hole opening box (1) is provided with a hole opening mechanism (4) inside; the hole opening mechanism (4) is composed of a drill bit (401), a drive motor (402), a telescopic rod (403), an electric push rod (404), a connecting plate (405) and a rotating column (406); the hole opening box (1) is provided with a moving mechanism (2) inside; the moving mechanism (2) includes a moving component (201) and a servo motor (202); a labor-saving clamping mechanism (3) is provided at the bottom position inside the hole opening box (1); the labor-saving clamping mechanism (3) includes a labor-saving clamping component (301) and a clamping plate (302); the hole opening box (1) is provided with a disassembly mechanism (5) inside; the disassembly mechanism (5) is composed of a disassembly component (501) and an elastic block (502).

2. A punching device for transformer installation according to claim 1, characterized in that: An electric push rod (404) is arranged inside the perforated box (1), the input end of the electric push rod (404) is electrically connected to the output end of the control row key (101), a connecting plate (405) is fixed to one end of the electric push rod (404), and telescopic rods (403) are fixed on both sides of the surface of the connecting plate (405).

3. A punching device for transformer installation according to claim 2, characterized in that: A driving motor (402) is installed at the bottom of the connecting plate (405), the input end of the driving motor (402) is electrically connected to the output end of the control row key (101), the output end of the driving motor (402) is fixed with a rotating column (406) through a coupling, and a drill bit (401) is arranged at the bottom of the rotating column (406).

4. A punching device for transformer installation according to claim 1, characterized in that: A moving assembly (201) is arranged inside the perforated box (1), and the moving assembly (201) is driven by a servo motor (202). The servo motor (202) is mounted on the surface of the perforated box (1), and the input end of the servo motor (202) is electrically connected to the output end of the control row key (101), and the output end of the servo motor (202) is fixed with a rotating shaft via a coupling.

5. A punching device for transformer installation according to claim 4, characterized in that: The interior of the moving component (201) includes a toothed plate (2011), a gear (2012) and a guide groove (2013); the interior of the perforated box (1) is provided with a toothed plate (2011); the surface of the toothed plate (2011) is respectively fixedly connected to the surfaces of the telescopic rod (403) and the electric push rod (404).

6. A punching device for transformer installation according to claim 5, characterized in that: The inner walls on both sides of the perforated box (1) are provided with guide grooves (2013), and the guide grooves (2013) are respectively slidably matched with the electric push rod (404) and the toothed plate (2011). The inner part of the perforated box (1) is rotatably connected with a gear (2012), one end of the gear (2012) is fixedly connected to one end of the rotating shaft, and the gear (2012) and the toothed plate (2011) are meshed with each other.

7. A transformer installation punching device according to claim 1, characterized in that: Clamping plates (302) are provided on both sides of the perforated box (1), and a labor-saving clamping component (301) is provided at the bottom of the perforated box (1).

8. A punching device for transformer installation according to claim 7, characterized in that: The labor-saving clamping component (301) is composed of a positive screw (3011), a slide groove (3012), a reverse screw (3013) and an adjusting screw block (3014). The slide groove (3012) is provided at the bottom of the hole opening box (1). One side of the hole opening box (1) is rotatably connected with the positive screw (3011). One end of the positive screw (3011) passes through the hole opening box (1) and the slide groove (3012) in sequence and is fixed with the reverse screw (3013). The reverse screw (3013) is provided at the bottom of the hole opening box (1). One end of the positive screw (3011) and the reverse screw (3013) is rotatably connected to the inner wall of the perforated box (1), and the surfaces of the positive screw (3011) and the reverse screw (3013) are both provided with an adjusting screw block (3014), and the adjusting screw block (3014) and the slide groove (3012) are slidably matched with each other, and the adjusting screw block (3014) is threadedly matched with the positive screw (3011) and the reverse screw (3013) respectively, and one end of the adjusting screw block (3014) is fixedly connected to one end of the clamping plate (302).

9. A transformer installation punching device according to claim 1, characterized in that: The elastic clamping blocks (502) are respectively fixed on both sides of the rotating column (406), and a disassembly component (501) is arranged inside the perforated box (1).

10. A punching device for transformer installation according to claim 9, characterized in that: The disassembly component (501) is provided with an insertion hole (5011), a fastening bolt (5012) and a slot (5013) inside. The insertion hole (5011) is provided at one end of the drill bit (401). The insertion hole (5011) and the rotating column (406) are plugged into each other. The inner wall of the insertion hole (5011) is provided with a slot (5013) on both sides. The slot (5013) and the elastic clamping block (502) are plugged into each other. The fastening bolt (5012) is respectively threadedly connected to the two sides of the drill bit (401). One end of the fastening bolt (5012) passes through the drill bit (401) and is threadedly fastened to the surface of the rotating column (406).

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