An oil-immersed transformer core assembling device

Abstract

The application discloses an oil-immersed transformer core assembling device and relates to the technical field of transformer production equipment.The device comprises a workbench and a mechanical arm arranged on one side of the workbench.The output end of the mechanical arm is fixedly connected with a core through an adsorption auxiliary device.The adsorption auxiliary device comprises a first suspension seat and a rotating block.An adjusting auxiliary assembly is arranged between the first suspension seat and the rotating block.The device is characterized in that the adsorption auxiliary device and the adjusting auxiliary assembly are matched with each other, so that the slightly upturned structure of the two ends of the core when taking the material can effectively damage the fitting surface between the core and the lower layer of the stack, reduce the friction force of the contact surface, and make the mechanical arm easily separate the upper layer of the core from the stack, thereby completely solving the problems of easy inclusion of the lower layer of the core and difficult separation in the traditional material taking mode, ensuring that only a single layer of the core is taken each time, laying a foundation for the accuracy of subsequent assembly, and further improving the practicability of the device as a whole.

Description

Technical Field

[0001] This invention relates to the field of transformer manufacturing equipment technology, specifically an oil-immersed transformer core assembly device. Background Technology

[0002] As a core component of power transmission and conversion systems, oil-immersed transformers rely heavily on their cores for ensuring electromagnetic performance and structural stability. The core is typically composed of multiple stacked thin silicon steel sheets. During transformer production and assembly, these sheets must be individually removed from the stack before precise assembly. Currently, the industry largely utilizes automated methods, such as robotic arms combined with suction devices, to handle the removal of transformer cores. By incorporating suction cups at the robotic arm's actuator and using a vacuum pump to generate suction, the top layer of the stacked core sheets is grasped and transported, improving assembly efficiency and reducing manual labor intensity.

[0003] The core structure of existing adsorption-type material handling devices is mostly a fixed-gap suction cup assembly. During operation, multiple suction cups simultaneously adsorb the top surface of the iron core, and then a robotic arm lifts the suction cups to complete the material handling. To adapt to different iron core specifications, some devices use an adjustable-gap suction cup design. However, in the material handling and separation stage, they still rely on the adsorption force of the suction cups and the lifting force of the robotic arm to directly peel the top iron core from the stack, without setting up a specific separation auxiliary structure. This type of device has been widely used in the assembly of small and medium-sized, thin iron cores, but its structural design has gradually revealed many compatibility and reliability issues when facing large-sized, high-density transformer iron cores.

[0004] In practical applications, the core technical problem of existing transformer core material handling devices lies in the insufficient reliability of the material handling and separation process, specifically manifested in the following aspects:

[0005] 1. Difficulty in separating the iron core from the stack: Since the iron core sheets are usually thin silicon steel sheets, they are tightly bonded when stacked. Due to atmospheric pressure, surface tension, and the adsorption of small impurities, strong frictional forces easily form between the top iron core and the lower stack. Existing devices rely solely on suction cups and robotic lifting forces for separation, which is insufficient to effectively break the bonding surfaces, resulting in high separation resistance. During material handling, the top iron core may fail to detach smoothly from the stack, affecting material handling efficiency.

[0006] 2. The lower core is easily caught during material handling: When the lifting force is insufficient or the friction is too high, the robot arm may cause one or more lower core pieces to rise simultaneously due to the adhesion between the top core and the robot, resulting in a "clamping" phenomenon. This phenomenon leads to errors in the number of core pieces handled, requiring manual intervention to separate and re-handle the material. This not only reduces the level of automation in assembly but may also cause scratches and deformation on the core surface due to improper manual operation, affecting the subsequent assembly accuracy and core performance. Summary of the Invention

[0007] The purpose of this invention is to provide an oil-immersed transformer core assembly device to solve the problem that the core tends to adhere to the bottom core during the material handling process, which causes the next layer of core to move synchronously during the material handling process and thus affects the material handling efficiency.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an oil-immersed transformer core assembly device, comprising: a workbench and a robotic arm disposed on one side of the workbench, wherein the output end of the robotic arm is fixedly connected to the core via an adsorption auxiliary device, the adsorption auxiliary device comprising a first suspension seat and a rotating block, wherein an adjustment auxiliary component is disposed between the first suspension seat and the rotating block; and a rolling auxiliary component, located between the core and the adsorption auxiliary device, for cooperating with the adsorption auxiliary device to roll the core.

[0009] As a further embodiment of the present invention: the adsorption aid includes a fixed base fixedly connected to the actuator of the robotic arm, and three suction cups are provided on the inner side of the fixed base. Each suction cup has a corrugated pipe fixedly connected to its port. One of the suction cups is fixedly connected to the fixed base through a suspension block, and the other two suction cups are slidably connected to the fixed base through a first slider. The other two suction cups are fixedly connected to a first slider.

[0010] As a further embodiment of the present invention: a first bidirectional threaded screw is rotatably connected to the inner side of the fixed base, and a first positive thread and a first negative thread are provided on the outer side of the first bidirectional threaded screw. The two first sliders are respectively threaded to the outer walls of the first positive thread and the first negative thread. A second drive motor is installed on one side of the fixed base, and the output end of the second drive motor is fixedly connected to the first bidirectional threaded screw.

[0011] As a further embodiment of the present invention: the adjustment auxiliary component includes a first electric push rod fixedly connected to one end of each of the first sliders, a first connecting block fixedly connected to the output end of the first electric push rod, a rotating block rotatably connected to the inner side of the first connecting block, and one end of the rotating block fixedly connected to the suction cup.

[0012] As a further embodiment of the present invention: one end of the first slider is fixedly connected to two first suspension seats, the two first suspension seats are respectively disposed on one side of the first connecting block, a limiting block is fixedly connected to both sides of the first connecting block, and a limiting groove matching the limiting block is opened on the inner side of the first suspension seat. The first connecting block is slidably connected to the first suspension seat through the limiting blocks fixedly connected to both sides.

[0013] As a further embodiment of the present invention: the adjustment auxiliary component further includes a rotating shaft fixedly connected to one side of the rotating block, one end of the rotating shaft extending through to the outside of the first connecting block and fixedly connected to a spur gear, and a spur rack meshing with the spur gear is fixedly connected to the bottom of one of the first suspension seats.

[0014] As a further embodiment of the present invention: the roller pressing auxiliary component includes a second bidirectional threaded screw rotatably connected to the inner side of the fixed base and located below the first bidirectional threaded screw. The outer wall of the second bidirectional threaded screw is provided with a second positive thread and a second negative thread. Two second sliders are slidably connected to the inner side of the fixed base. The two second sliders are respectively threaded to the outer walls of the second positive thread and the second negative thread. A second suspension seat is fixedly connected to the bottom of the second slider. A connecting sleeve is provided at one end of the second suspension seat. A cavity is opened on the inner side of the connecting sleeve. A sliding rod is slidably connected to the inner side of the cavity. A pressure roller is rotatably connected to the bottom of the sliding rod. A connecting spring is installed between the sliding rod and the cavity. A pressure regulating auxiliary component is provided between the connecting sleeve and the second suspension seat.

[0015] As a further embodiment of the present invention: the roller pressing auxiliary component further includes a push block fixedly connected to one side of the rotating block, a power plate fixedly connected to one side of the sliding rod, the power plate and the push block being in contact with each other, and a guide groove communicating with the cavity being provided on one side of the connecting sleeve, and the guide groove matching the power plate.

[0016] As a further embodiment of the present invention: the pressure regulating auxiliary component includes a second electric push rod installed at the bottom of the second suspension seat, the output end of the second electric push rod passes through to the inner side of the second suspension seat and is fixedly connected to a second connecting block, and the second connecting block is fixedly connected to the connecting sleeve, a third slider is fixedly connected to one side of the second suspension seat, and an auxiliary groove matching the third slider is opened on one side of the connecting sleeve, and the third slider is slidably connected to the connecting sleeve through the auxiliary groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. By setting up an adsorption auxiliary device and adjusting the auxiliary components, the two ends of the iron core are slightly raised during material handling. This raised structure can effectively disrupt the contact surface between the iron core and the lower stack, reduce the friction of the contact surface, and allow the robot to easily peel the upper iron core from the stack. This completely solves the problems of easy entrapment of the lower iron core and difficult separation in traditional material handling methods, ensuring that only a single layer of iron core is obtained each time, laying the foundation for the accuracy of subsequent assembly, and thus improving the overall practicality of the device.

[0019] 2. By setting up the cooperation of parts such as push blocks, when the rotating block moves away from the iron core, it drives the push block to move synchronously. Then, the power plate pushes the sliding rod to move upward. When the rotating block rotates during its upward movement, the power plate is always in contact with the push block under the action of the connecting spring. When the rotating block stops moving, the push block and the power plate are not separated. At this time, the first drive motor is started. The output end of the first drive motor drives the second bidirectional threaded screw to rotate, which in turn drives the two second sliders to drive a pressure roller to move towards the center of the iron core. When the power plate separates from the push block, the pressure roller can slightly hit the top of the iron core under the action of the connecting spring. This makes it easier for the stacked iron cores to be separated from the bottom contact iron cores during the material picking process, avoiding the lower layer iron cores being trapped during material picking and ensuring the accuracy of single-layer material picking.

[0020] 3. By coordinating components such as the second electric push rod, when the pressure roller contacts the bottom of the iron core, it moves towards the suction cup near the center of the iron core. After the robot arm finishes picking up the material, when the iron core is assembled and placed, and the iron core is attached to the top of the assembled iron core, the two first electric push rods are activated, and the output ends of the two first electric push rods are reset, so that the two ends of the iron core, which were originally in a raised state, can gradually form a attached state. During this process, the first drive motor is reset again, so that the two pressure rollers can perform the rolling operation during the assembly of the iron core. Before the pressure rollers are reset, the second electric push rod is activated, and the output end of the second electric push rod drives the connecting sleeve to move downward, so that the connecting spring can relatively squeeze the sliding rod, thereby adjusting the pressure of the pressure roller on the top of the iron core during the assembly process. This allows the iron core to more accurately expel air from the bonding surface and compact small impurity gaps during the assembly process. Compared with the fixed pressure rolling, the pressure can be optimized according to the actual bonding situation to ensure that the iron core bonding surface is tightly attached, significantly improving the density of the assembly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the robotic arm structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the inner structure of the fixing base of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 This is a cross-sectional view of the connecting sleeve of the present invention;

[0026] Figure 6 For the present invention Figure 5 Enlarged view at point B in the middle;

[0027] Figure 7 This is a diagram showing the iron core of the present invention in a state from flat to warped.

[0028] In the diagram: 1. Workbench; 2. Iron core; 3. Robotic arm; 4. Fixed base; 5. First drive motor; 6. First bidirectional threaded screw; 7. Second bidirectional threaded screw; 8. Second drive motor; 9. First slider; 10. Second slider; 11. Suspension block; 12. Suction cup; 13. First suspension seat; 14. First electric push rod; 15. First connecting block; 16. Rotating block; 17. Bellows; 18. Second suspension seat; 19. Connecting sleeve; 20. Sliding rod; 21. Pressure roller; 22. Spur rack; 23. Spur gear; 24. Rotating shaft; 25. Push block; 26. Power plate; 27. Connecting spring; 28. Third slider; 29. ​​Cavity; 30. Second connecting block; 31. Second electric push rod. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0031] Please see Figures 1 to 7This embodiment provides an oil-immersed transformer core assembly device, including: a workbench 1 and a robot arm 3 disposed on one side of the workbench 1. The output end of the robot arm 3 is fixedly connected to the core 2 by an adsorption auxiliary device. The adsorption auxiliary device includes a first suspension seat 13 and a rotating block 16. An adjustment auxiliary component is disposed between the first suspension seat 13 and the rotating block 16. The adsorption auxiliary device includes a fixed seat 4 fixedly connected to the execution end of the robot arm 3. Three suction cups 12 are disposed on the inner side of the fixed seat 4. A bellows 17 is fixedly connected to the port of each suction cup 12. One suction cup 12 is fixedly connected to the fixed seat 4 by a suspension block 11. The other two suction cups 12 are slidably connected to the fixed seat 4 by a first slider 9. The other two suction cups 12 are fixedly connected to a first slider 9. A first bidirectional threaded screw 6 is rotatably connected to the inner side of the fixed seat 4. The outer side of the first bidirectional threaded screw 6 is provided with a first positive thread and a first negative thread. Two first sliders 9 are respectively threaded to the outer wall of the first positive thread and the first negative thread. A second drive is installed on one side of the fixed seat 4. The first slider 9 has a first electric push rod 14 fixedly connected to one end of each first slider 9. The output end of the first electric push rod 14 is fixedly connected to a first connecting block 15. A rotating block 16 is rotatably connected to the inner side of the first connecting block 15. One end of the rotating block 16 is fixedly connected to a suction cup 12. Two first suspension seats 13 are fixedly connected to one end of the first slider 9. The two first suspension seats 13 are respectively set on one side of the first connecting block 15. A limiting block is fixedly connected to both sides of the first connecting block 15. A limiting groove matching the limiting block is opened on the inner side of the first suspension seat 13. The first connecting block 15 is slidably connected to the first suspension seat 13 through the limiting blocks fixedly connected to both sides. The adjustment auxiliary component also includes a rotating shaft 24 fixedly connected to one side of the rotating block 16. One end of the rotating shaft 24 extends through to the outside of the first connecting block 15 and is fixedly connected to a spur gear 23. A spur rack 22 that meshes with the spur gear 23 is fixedly connected to the bottom of one of the first suspension seats 13.

[0032] First, a miniature vacuum pump is installed on the back of the fixed base 4. The bellows 17 at the air inlets of the three suction cups 12 are connected to the miniature vacuum pump through pipes. The miniature vacuum pump performs a vacuum operation on the first suspension base 13. When it is necessary to assemble the iron core 2, the three suction cups 12 at the front end of the robot arm 3 pick up the iron core 2. When the three suction cups 12 are attached to the top of the iron core 2, the two first electric push rods 14 are then activated. The output ends of the two first electric push rods 14 drive a first connecting block 15 to move one suction cup 12 upward. During the movement, since the rack 22 is initially in a meshing state with the spur gear 23, the rack 22 drives the spur gear 23. 3. The rotating block 16 is driven to rotate by the rotating shaft 24. When the first electric push rod 14 stops running, the two suction cups 12 rotate, causing the two ends of the iron core 2 that is being held in place to be slightly raised. Since the iron cores 2 are usually stacked, the robot arm 3 causes the ends of the top iron core 2 to be slightly raised during the material handling process, which facilitates the separation from the bottom iron core 2. This avoids the problem of the stacked iron cores 2 sticking to the lower iron cores 2 due to tight adhesion and friction. This solves the problem of the lower iron cores 2 being easily trapped and difficult to separate in the traditional material handling method, ensuring that only a single layer of iron core 2 is picked up each time, laying the foundation for the accuracy of subsequent assembly.

[0033] When it is necessary to adjust the position of the two suction cups 12, the second drive motor 8 can be started. The output end of the second drive motor 8 drives the first bidirectional threaded screw 6 to rotate, thereby driving the two first sliders 9 to move towards the center position of the fixed seat 4, thereby adjusting the position of the two suction cups 12, thus improving the overall practicality of the device.

[0034] Please see Figures 2-7A rolling auxiliary component, located between the iron core 2 and the adsorption auxiliary device, is used to roll the iron core 2 in conjunction with the adsorption auxiliary device. The rolling auxiliary component includes a second bidirectional threaded rod 7 rotatably connected to the inner side of the fixed base 4 and located below the first bidirectional threaded rod 6. The inner side of the first slider 9 has a through hole with a diameter larger than that of the second bidirectional threaded rod 7, so that the second bidirectional threaded rod 7 passes through the inside of the first slider 9 without being connected to the first slider 9. The outer wall of the second bidirectional threaded rod 7 is provided with a second positive thread and a second negative thread. Two second sliders 10 are slidably connected to the inner side of the fixed base 4. The two second sliders 10 are respectively threaded to the outer walls of the second positive thread and the second negative thread. A second suspension seat 18 is fixedly connected to the bottom of the second slider 10. A connecting sleeve 19 is provided at one end of the second suspension seat 18. A cavity 29 is opened on the inner side of the connecting sleeve 19. A sliding rod 20 is slidably connected to the inner side of the cavity 29. The bottom of the sliding rod 20 is rotatably connected to... A connecting spring 27 is installed between the pressure roller 21, the sliding rod 20 and the cavity 29. A pressure regulating auxiliary component is provided between the connecting sleeve 19 and the second suspension seat 18. The roller pressing auxiliary component also includes a push block 25 fixedly connected to one side of the rotating block 16. A power plate 26 is fixedly connected to one side of the sliding rod 20. The power plate 26 and the push block 25 are in contact with each other. A guide groove communicating with the cavity 29 is opened on one side of the connecting sleeve 19, and the guide groove matches the power plate 26. The pressure regulating auxiliary component includes a second electric push rod 31 installed at the bottom of the second suspension seat 18. The output end of the second electric push rod 31 passes through the inner side of the second suspension seat 18 and is fixedly connected to a second connecting block 30. The second connecting block 30 is fixedly connected to the connecting sleeve 19. A third slider 28 is fixedly connected to one side of the second suspension seat 18. An auxiliary groove matching the third slider 28 is opened on one side of the connecting sleeve 19. The third slider 28 is slidably connected to the connecting sleeve 19 through the auxiliary groove.

[0035] As the rotating block 16 moves away from the iron core 2, it drives the push block 25 to move synchronously. This, in turn, pushes the sliding rod 20 upward through the power plate 26. When the rotating block 16 rotates upward, the power plate 26 remains in contact with the push block 25 under the action of the connecting spring 27. When the rotating block 16 stops moving, the push block 25 and the power plate 26 do not separate. At this time, the first drive motor 5 is started. The output end of the first drive motor 5 drives the second bidirectional threaded screw 7 to rotate, which in turn drives the two second sliders 10 to drive a pressure roller 21 to move towards the center of the iron core 2. When the power plate 26 separates from the push block 25, the pressure roller 21 can slightly hit the top of the iron core 2 under the action of the connecting spring 27. This allows the stacked iron cores 2 to easily separate from the bottom iron cores 2 during the material handling process, avoiding the lower layer of iron cores 2 being caught during material handling and ensuring the accuracy of single-layer material handling.

[0036] When the pressure roller 21 contacts the bottom of the iron core 2 and moves towards the center of the iron core 2 near the suction cup 12, after the robot arm 3 has finished picking up the material, when the picked-up iron core 2 is assembled and placed, and the iron core 2 is attached to the top of the already assembled iron core 2, the two first electric push rods 14 are activated, and the output ends of the two first electric push rods 14 are reset, so that the two ends of the iron core 2, which were originally in a raised state, can gradually form a attached state. During this process, the first drive motor 5 is reset again, so that the two pressure rollers 21 can be used to assemble the iron core 2. During the process, a rolling operation is performed. Before the pressure roller 21 is reset, the second electric push rod 31 is activated. The output end of the second electric push rod 31 drives the connecting sleeve 19 to move downward, so that the connecting spring 27 can relatively squeeze the sliding rod 20, thereby adjusting the squeezing force of the pressure roller 21 on the top of the iron core 2 during the assembly process. This allows the iron core 2 to more accurately expel air from the bonding surface and compact the gaps between small impurities during the assembly process. Compared with the fixed pressure rolling, the pressure can be optimized according to the actual bonding situation, ensuring that the iron core bonding surface is tightly bonded and significantly improving the compactness of the assembly.

[0037] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A core assembly device for an oil-immersed transformer, characterized in that, include: The workbench (1) and the robot arm (3) located on one side of the workbench (1) are provided. The output end of the robot arm (3) is fixedly connected to the iron core (2) by adsorption auxiliary device. The adsorption auxiliary device includes a first suspension seat (13) and a rotating block (16). An adjustment auxiliary component is provided between the first suspension seat (13) and the rotating block (16). A rolling auxiliary component is located between the iron core (2) and the adsorption auxiliary device, and is used to cooperate with the adsorption auxiliary device to roll the iron core (2). The rolling auxiliary component includes a first slider (9) and a suction cup (12). The adjustment auxiliary component includes a first electric push rod (14) fixedly connected to one end of each of the first sliders (9), a first connecting block (15) fixedly connected to the output end of the first electric push rod (14), a rotating block (16) rotatably connected to the inner side of the first connecting block (15), and one end of the rotating block (16) fixedly connected to the suction cup (12). The adjustment auxiliary component also includes a rotating shaft (24) fixedly connected to one side of the rotating block (16). One end of the rotating shaft (24) extends through to the outside of the first connecting block (15) and is fixedly connected to a spur gear (23). A spur rack (22) that meshes with the spur gear (23) is fixedly connected to the bottom of one of the first suspension seats (13).

2. The oil-immersed transformer core assembly device according to claim 1, characterized in that, The adsorption aid includes a fixed base (4) fixedly connected to the execution end of the robotic arm (3). Three suction cups (12) are provided on the inner side of the fixed base (4). A corrugated pipe (17) is fixedly connected to the port of each suction cup (12). One of the suction cups (12) is fixedly connected to the fixed base (4) through a suspension block (11). The other two suction cups (12) are slidably connected to the fixed base (4) through a first slider (9). The other two suction cups (12) are fixedly connected to a first slider (9).

3. The oil-immersed transformer core assembly device according to claim 2, characterized in that, The inner side of the fixed base (4) is rotatably connected to a first bidirectional threaded screw (6). The outer side of the first bidirectional threaded screw (6) is provided with a first positive thread and a first negative thread. The two first sliders (9) are respectively threaded to the outer wall of the first positive thread and the first negative thread. A second drive motor (8) is installed on one side of the fixed base (4), and the output end of the second drive motor (8) is fixedly connected to the first bidirectional threaded screw (6).

4. The oil-immersed transformer core assembly device according to claim 3, characterized in that, Two first suspension seats (13) are fixedly connected to one end of the first slider (9). The two first suspension seats (13) are respectively set on one side of the first connecting block (15). A limiting block is fixedly connected to both sides of the first connecting block (15). A limiting groove matching the limiting block is opened on the inner side of the first suspension seat (13). The first connecting block (15) is slidably connected to the first suspension seat (13) through the limiting blocks fixedly connected to both sides.

5. The oil-immersed transformer core assembly device according to claim 4, characterized in that, The roller pressing auxiliary component includes a second bidirectional threaded screw (7) rotatably connected to the inner side of the fixed seat (4) and located below the first bidirectional threaded screw (6). The outer wall of the second bidirectional threaded screw (7) is provided with a second positive thread and a second negative thread. The inner side of the fixed seat (4) is slidably connected to two second sliders (10). The two second sliders (10) are respectively threaded to the outer wall of the second positive thread and the second negative thread. The bottom of the second slider (10) is fixedly connected to a second suspension seat (18). One end of the second suspension seat (18) is provided with a connecting sleeve (19). The inner side of the connecting sleeve (19) is provided with a cavity (29). The inner side of the cavity (29) is slidably connected to a sliding rod (20). The bottom of the sliding rod (20) is rotatably connected to a pressure roller (21). A connecting spring (27) is installed between the sliding rod (20) and the cavity (29). A pressure regulating auxiliary component is provided between the connecting sleeve (19) and the second suspension seat (18).

6. The oil-immersed transformer core assembly device according to claim 5, characterized in that, The roller pressing auxiliary component also includes a push block (25) fixedly connected to one side of the rotating block (16), a power plate (26) fixedly connected to one side of the sliding rod (20), the power plate (26) and the push block (25) are in contact with each other, and a guide groove communicating with the cavity (29) is opened on one side of the connecting sleeve (19), and the guide groove matches the power plate (26).

7. The oil-immersed transformer core assembly device according to claim 6, characterized in that, The pressure regulating auxiliary component includes a second electric push rod (31) installed at the bottom of the second suspension seat (18). The output end of the second electric push rod (31) extends through to the inner side of the second suspension seat (18) and is fixedly connected to a second connecting block (30). The second connecting block (30) is fixedly connected to the connecting sleeve (19). A third slider (28) is fixedly connected to one side of the second suspension seat (18). An auxiliary groove matching the third slider (28) is opened on one side of the connecting sleeve (19). The third slider (28) is slidably connected to the connecting sleeve (19) through the auxiliary groove.

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