Transformer detection tool

Abstract

The utility model relates to a transformer detection tool. The transformer detection tool comprises a bottom plate and two rocking plates installed on the bottom plate. The two rocking plates can rotate towards the two ends of the bottom plate, the two rocking plates are parallel when rotating to be perpendicular to the bottom plate, and the spacing distance between the two rocking plates is matched with the size of a first detection position of a detected transformer; a mounting hole positioning bolt or a mounting hole positioning stud is arranged on the bottom plate and is matched with a mounting hole in the bottom of the detected transformer; a welding block with the maximum size is arranged between the two rocking plates on the bottom plate and is matched with the maximum size of a second detection position of the transformer; the corresponding minimum size nick on the bottom plate is matched with the minimum size of the second detection position of the transformer; the device further comprises a servo hydraulic cylinder, a displacement sensor, a controller, an oil pump, a motor, an oil cylinder and an electromagnetic directional valve. According to the utility model, the problem of accurate detection of the coil size and the iron core stack thickness of the transformer in the prior art is solved.

Description

Technical Field

[0001] This application belongs to the technical field of transformers, and particularly relates to a transformer detection tooling. Background Art

[0002] An isolation transformer is designed for a customer's compact cabinet project. Due to the tight size of the cabinet, there is only a margin of 2 - 3 mm between the transformer and the front and rear panels of the cabinet after installation; due to the lead wire outlet, there is a size difference between the front and rear side coils of the transformer. The front side has a smaller size and the rear side has a larger size, but the mounting holes at the lower part of the clamping parts are centrosymmetric. The existing tooling detection method can only detect whether the size of the mounting holes of the transformer meets the requirements. However, for this type of product, even if the mounting hole size meets the requirements, it does not necessarily mean that the transformer can be successfully installed. If the coil size exceeds the requirements, it will cause interference in the installation of the front and rear panels in the compact cabinet, or the insufficient distance margin will cause contact between the transformer surface and the cabinet, resulting in electrical hazards. The existing method for measuring the coil size is to measure the overall size with a board ruler, which cannot measure this product well, and it is easy to have a situation where the total size of the front and rear added together meets the requirements, but the front and rear sizes do not meet the requirements; if the board ruler is used to measure the front and rear coil sizes respectively, since there are lead wires on both the front and rear coil sides of the transformer, it is not convenient to measure, and at the same time, this detection method wastes a lot of man-hours. There are specific requirements for the core stack thickness of the transformer during production. If the stack thickness is less than the required thickness, it will cause too high magnetic density and does not meet the design requirements; if the stack thickness is higher than the required thickness, it will cause deviation in the size of the transformer mounting holes and material waste. Summary of the Utility Model

[0003] In view of the deficiencies in the related art, the present utility model provides a transformer detection tooling to solve the technical problems in the existing transformer detection.

[0004] In a possible implementation, a transformer detection tooling is provided, including: a bottom plate, and two swing plates mounted on the bottom plate; the two swing plates can rotate towards both ends of the bottom plate, and when the two swing plates rotate to be perpendicular to the bottom plate, the two swing plates are parallel, and the spacing distance when the two swing plates are perpendicular matches the size of the first detection position of the transformer to be detected; mounting hole positioning bolts or mounting hole positioning studs are arranged on the bottom plate, and the mounting hole positioning bolts or mounting hole positioning studs match the mounting holes at the bottom of the transformer to be detected; two or more corresponding maximum size welding blocks are arranged between the two swing plates on the bottom plate, matching the maximum size of the second detection position of the transformer; two or more corresponding minimum size notches are arranged between the two corresponding maximum size welding blocks on the bottom plate, matching the minimum size of the second detection position of the transformer; it further includes: a servo hydraulic cylinder, a displacement sensor, a controller, an oil pump, a motor, an oil cylinder, and an electromagnetic directional control valve; the servo hydraulic cylinder is connected to the swing plate, the displacement sensor detects the displacement of the servo hydraulic cylinder and sends the displacement to the controller, the controller controls the motor to rotate, the motor drives the oil pump to pump hydraulic oil from the oil cylinder, and the oil flow direction is adjusted by the electromagnetic directional control valve, thereby controlling the telescopic direction of the servo hydraulic cylinder and driving the swing plate to swing.

[0005] In a possible implementation, the first detection position of the transformer is the wire coils on the opposite sides of the transformer.

[0006] In a possible implementation, the second detection position of the transformer is the front lower clamp and the rear lower clamp at the bottom of the transformer.

[0007] In a possible implementation, it further includes: a filter and a throttle valve, which are sequentially connected between the oil circuits of the oil pump and the electromagnetic directional control valve.

[0008] In a possible implementation, it further includes: a relief valve, which is connected between the oil circuits of the filter and the oil cylinder.

[0009] In a possible implementation, the swing plate is mounted on the maximum size welding block through a fixing bolt and a fixing nut, and the swing plate rotates around the fixing bolt.

[0010] In a possible implementation, it further includes: a counterweight handrail, which is mounted on the swing plate and is on the outer side relative to the transformer detection and installation position. Based on the above technical solutions, the transformer detection tooling of the embodiment of the present utility model detects whether the relevant detection positions of the transformer meet the set values by setting the spacing with the swing plate, setting the position with the mounting holes, and detecting with the maximum size welding blocks, so as to realize the detection of the shape of the transformer, and provide a simple, convenient and accurate transformer detection device.

[0011] Based on the above technical solution, the transformer detection tooling in the embodiment of the present utility model, through the combination of the servo hydraulic cylinder and the swing plate, allows the swing plate to accurately adjust its position to correspond to different detection positions of the transformer. Through the coordinated operation of the controller and the displacement sensor, accurate detection of the transformer is achieved, ensuring the efficiency and accuracy of the detection process. In addition, by equipping components such as filters, throttle valves, and overflow valves, the stability and safety of the hydraulic system are guaranteed, and the service life of the equipment is extended. Finally, the additional design of the counterweight handrail optimizes the balance of the tooling, improving the convenience and stability of operation. These designs together solve the problems of accuracy and efficiency in the transformer detection process, and improve the economic benefits of production and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0013] Figure 1 is a structural schematic diagram of the transformer detection tooling in an embodiment of the present utility model;

[0014] Figure 2 is Figure 1 the left view of

[0015] Figure 3 is Figure 1 the bottom view of

[0016] Figure 4 is an axonometric view of the transformer detection tooling in an embodiment of the present utility model;

[0017] Figure 5 is a dynamic state diagram of the transformer detection tooling in an embodiment of the present utility model;

[0018] Figure 6 is Figure 5 the axonometric view of

[0019] Figure 7 is a detection state diagram of the transformer detection tooling in an embodiment of the present utility model;

[0020] Figure 8 is Figure 7 the top view of

[0021] Figure 9 is the bottom view of the motor to be detected;

[0022] Figure 10 is Figure 9 the left view of

[0023] Figure 11Structural schematic diagram of a transformer detection tooling according to another embodiment of the present utility model;

[0024] Figure 12 Driving and stopping structural schematic diagram of a transformer detection tooling according to an embodiment of the present utility model.

[0025] In the figure:

[0026] 1. Base plate; 2. Rocking plate; 3. Maximum size welding block; 4. Minimum size notch; 5. Fixing bolt; 6. Fixing nut; 7. Counterweight handrail; 8. Mounting hole positioning stud; 9. Front lower clamp; 10. Rear lower clamp; 11. Oil pump; 12. Motor; 13. Relief valve; 14. Electromagnetic directional valve; 15. Oil cylinder; 16. Filter; 17. Displacement sensor; 18. Controller; 19. Coil; 22. Throttle valve; 23. Servo hydraulic cylinder. Specific embodiments

[0027] Next, the technical solutions in the embodiments will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "horizontal", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0029] The terms "first", "second", "third" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features.

[0030] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection, or an indirect connection through an intermediate medium, and may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0031] To solve the technical problem of non-standard generated sizes of transformers in the prior art, the present application provides a transformer detection tooling.

[0032] Refer to Figures 1-8 , and Figure 11 and Figure 12 , in a possible implementation, the transformer detection tooling includes a bottom plate 1 and two swing plates 2 mounted on the bottom plate 1. These two swing plates 2 can rotate towards both ends of the bottom plate 1. When these two swing plates 2 rotate to be perpendicular to the bottom plate 1, they are in a parallel state, and the spacing distance when perpendicular matches the size of the first detection position of the transformer to be detected. Mounting hole positioning bolts 8 or mounting hole positioning studs 8 are also provided on the bottom plate 1, and these bolts or studs 8 match the mounting holes at the bottom of the transformer to be detected. In addition, two or more corresponding maximum size welding blocks 3 are provided between the two swing plates 2 on the bottom plate 1, and these welding blocks 3 match the maximum size of the second detection position of the transformer. Between these two size welding blocks 3, two or more corresponding minimum size notches 4 are provided on the bottom plate 1, which match the minimum size of the second detection position of the transformer. It also includes: a servo hydraulic cylinder 23, a displacement sensor 17, a controller 18, an oil pump 11, a motor 12, an oil cylinder 15, and an electromagnetic directional control valve 14; the servo hydraulic cylinder 23 is connected to the swing plate 2, the displacement sensor 17 detects the displacement of the servo hydraulic cylinder 23 and sends the displacement to the controller 18, the controller 18 controls the motor 12 to rotate, the motor 12 drives the oil pump 11 to pump hydraulic oil from the oil cylinder 15, and the oil flow direction is adjusted by the electromagnetic directional control valve 14, so as to control the telescopic direction of the servo hydraulic cylinder 23 and drive the swing plate 2 to swing.

[0033] In the above solution, the design of the swing plate 2 allows users to open and close the detection station of the detection tooling at any time, facilitating the installation and unloading of the transformer to be detected. Through the positioning of the bolts or studs 8 on the bottom plate 1, the size and spacing of the mounting holes at the bottom of the transformer can be detected. At the same time, it can ensure that the transformer is firmly fixed on the tooling, thus avoiding movement or misalignment during the detection process. In addition, through the control of the servo hydraulic cylinder 23, the swing plate 2 can automatically rotate to the required position. This precisely controlled movement not only improves the accuracy of detection but also enhances the flexibility and efficiency of operation. The design of the entire system makes the detection process faster and more accurate, significantly improving the production efficiency and the level of quality control.

[0034] The positioning bolts or positioning studs 8 in the mounting holes on the bottom plate 1 are used for the installation hole detection of the transformer: To ensure that the front lower clamp 9 and the rear lower clamp 10 of the transformer are on the same plane, the bottom plate 1 of this tooling is selected to be integrally machined from a flat plate, and then according to the requirements of the mounting holes of the cabinet and the thickness of the bolts used, the studs 8 are welded to the bottom plate 1; thus meeting the requirements of the mounting holes of the cabinet when the transformer is installed in the cabinet.

[0035] Among them, the servo hydraulic cylinder 23 is connected to the swing plate 2: The servo hydraulic cylinder 23 is directly connected to the swing plate 2, responsible for converting the hydraulic pressure 10 into mechanical motion, so that the swing plate 2 can perform precise rotation and positioning.

[0036] The displacement sensor 17 detects the displacement of the servo hydraulic cylinder 23: The displacement sensor 17 monitors the position change of the piston or rod of the servo hydraulic cylinder 23, and these data are used to ensure that the swing plate 2 reaches the predetermined position. The displacement data is sent to the controller 18 in real time.

[0037] The controller 18 processes the displacement data: The controller 18 receives the data from the displacement sensor 17 and calculates the required adjustment instructions based on these data to control the exact position and speed of the swing plate 2.

[0038] The motor 12 and the oil pump 11: The controller 18 commands the motor 12 to operate, and the motor 12 drives the oil pump 11 to work. The oil pump 11 extracts hydraulic oil from the oil cylinder 15 to provide power for the hydraulic system.

[0039] The electromagnetic directional valve 14 adjusts the oil flow: The electromagnetic directional valve 14 adjusts the flow direction of the hydraulic oil according to the instructions of the controller 18, thereby controlling the telescopic direction of the servo hydraulic cylinder 23 and realizing the precise swing of the swing plate 2.

[0040] The transformer detection tooling of the above embodiment has the following beneficial effects:

[0041] Precise control: The hydraulic system and the system of the controller 18 allow precise control of each movement of the swing plate 2. Whether it is the position or the speed, it can be accurately adjusted according to the requirements.

[0042] Fast response: The servo hydraulic system has a fast response speed and can complete the conversion from command to action in a short time, increasing the operation efficiency of the tooling.

[0043] High stability and repeatability: The stability and repeatability of the system are guaranteed, and the position of the swing plate 2 is measured and detected.

[0044] Automated operation: The automated operation achieved through the integrated control system reduces human intervention, reduces the operation complexity, and improves safety and work efficiency.

[0045] System protection: The feedback of displacement sensor 17 is used for system protection to avoid excessive movement or position errors and prevent equipment damage.

[0046] In summary, the power control system of the above embodiments not only improves the operating performance of the transformer detection tooling, but also improves work efficiency and equipment safety, greatly enhancing the practical value and economic benefits of the tooling.

[0047] In a possible embodiment, refer to Figure 9 , the first detection position of the transformer is the wire coils 19 on the opposite sides of the transformer. The spacing when the swing plate 2 is vertical is used to detect the size and position of the wire coil 19 to ensure that the wire coil 19 meets the specified standards during the production process.

[0048] The first detection position is used for the maximum size detection of the wire coil 19: Use the fixing bolts 5 of M10 to install the front and rear swing plates 2 respectively, so that the swing plate 2 can rotate from horizontal to vertical. The distance between the front and rear swing plates 2 is the maximum size of the front and rear panels of the cabinet. When the front and rear swing plates 2 are both vertically positioned, it simulates whether there is enough clearance between the transformer and the front and rear panels of the cabinet during the actual installation of the transformer, whether there is installation interference, and ensures a relative safety distance.

[0049] In the above solution, different spacings of the swing plate 2 are used to adapt to different sizes of the wire coil 19 to ensure the correct position and fixed state of the wire coil 19 during detection. This adaptability provides an effective method to detect the symmetry and dimensional accuracy of the wire coil 19, helps to detect production defects early, and thus improves the quality of the final product. In addition, this design also helps to reduce material waste caused by position or size errors, with significant economic benefits.

[0050] In a possible embodiment, refer to Figure 10 , the second detection position of the transformer is the front lower clamping part 9 and the rear lower clamping part 10 at the bottom of the transformer. This design enables the tooling to accurately detect and position the key support components at the bottom of the transformer.

[0051] In the above solution, the second detection position is used for the core stack thickness detection of the transformer: Since the front lower clamping part 9 and the rear lower clamping part 10 of the transformer adopt the laser cutting operation process, the error is small and can be approximated as a standard part. Therefore, the maximum size obtained by adding the front and rear lower clamping parts of the transformer and the core stack thickness is used as the detection standard for evaluating the core stack thickness. Therefore, welding blocks 3 are specified at the maximum size at the front and rear lower clamping parts of the transformer, and then the minimum size marks 4 are scribed on the bottom plate 1. The minimum size mark 4 is the minimum size of the front and rear lower clamping parts of the transformer.

[0052] In the above solution, the setting of the largest-sized solder block 3 and the smallest-sized notch 4 ensures the correct installation and dimensional matching of the bottom clamp of the transformer, which is crucial for ensuring the structural stability and functional performance of the entire transformer. By precisely matching these key dimensions, the reliability and safety of the transformer in practical applications can be significantly improved. In addition, this precise dimensional control also helps to quickly identify and correct errors on the production line, reducing production delays and costs.

[0053] The lower clamp of the transformer is Figure 10 as shown, symmetrically centered on the iron core, with the mounting holes having a dimension of 120 ± 2 mm in the front-back direction and 140 ± 1 mm in the left-right direction, and the four mounting holes arranged in a rectangular pattern; the opening is a U-shaped hole with a diameter of φ10 mm.

[0054] The size of the front-side winding package of the transformer is 30 mm Max as shown in the figure, the size of the rear-side winding package is 38 mm Max, and the front-back dimensions of the winding package are asymmetric.

[0055] The lamination thickness dimension of the iron core is mapped to the largest dimension of the lower clamp, which is 140 ± 2 mm.

[0056] In a possible implementation, the transformer detection tooling further includes a filter 16 and a throttle valve 22, and the two components are sequentially connected in the oil circuit between the oil pump 11 and the electromagnetic directional valve 14. The filter 16 is used to remove impurities and contaminants in the hydraulic system, and the throttle valve 22 is used to regulate the oil flow rate to ensure the stability and reliability of the hydraulic system under various working conditions.

[0057] In the above solution, the use of the filter 16 can effectively extend the service life of the hydraulic system, prevent system failures caused by contaminants, and maintain the efficient operation of the system. The addition of the throttle valve 22 further enhances the fine control of the oil flow rate, making the hydraulic system more stable during complex operations, and improving the response speed and accuracy of the detection tooling. This design not only improves the reliability of the system but also reduces the maintenance cost and downtime, thereby improving the overall work efficiency.

[0058] In a possible implementation, the transformer detection tooling further includes a relief valve 13, and the relief valve 13 is connected in the oil circuit between the filter 16 and the oil cylinder 15. The main function of the relief valve 13 is to protect the hydraulic system from damage caused by excessive pressure by automatically releasing the excess hydraulic oil to control the system pressure.

[0059] In the above solution, the application of the relief valve 13 ensures the safe operation of the entire hydraulic system under high pressure, preventing equipment damage or failure caused by excessive pressure. This safety protection measure is crucial for efficient and reliable operation, especially during long-term operation or repeated operations. The role of the relief valve 13 is of great importance. In addition, this setting also helps optimize the energy consumption of the system because it can automatically adjust and maintain the system pressure at the optimal level.

[0060] In a possible implementation, for the transformer detection tooling, the swing plate 2 is installed on the largest-size welding block 3 through the fixing bolts 5 and fixing nuts 6, and the swing plate 2 rotates around the fixing bolts 5. This setting allows the swing plate 2 to make precise and controllable position adjustments during transformer detection, improving the flexibility and adaptability of the detection.

[0061] The dimension measurement tooling consists of parts such as the bottom plate 1, swing plate 2, fixing bolts 5, fixing nuts 6, etc.; as Figure 4 and Figure 6 the mounting hole positioning stud 8 shown in, since the transformer has a U-shaped hole, the safest installation method is center hole to center hole. That is, after installing with the M9 fixing bolt 5, the distance between the two fixing bolts 5 is 120 mm and 140 mm, and this dimension is used as the welding dimension of the mounting hole positioning stud 8; as Figure 3 the largest-size welding block 3 and the smallest-size notch 4 shown are for matching the largest size of 140 ± 2 mm of the lower clamping parts 9 and 10. When the sizes of the lower clamping parts 9 and 10 exceed 142 mm, due to installation interference, the transformer product will not be able to enter the tooling, that is, the core stack thickness of the transformer needs to be repaired; when the sizes of the lower clamping parts 9 and 10 are less than 138 mm, the smallest-size notch 4 will leak out to the outside of the lower clamping parts, and this is used as a basis to determine that the core stack thickness of the transformer does not meet the dimensions and needs to be repaired;

[0062] In the above solution, the use of the fixing bolts 5 and nuts 6 provides stable support and a reliable rotation base point, ensuring the stability and precise alignment of the swing plate 2 during movement, thereby improving the overall operation efficiency and the accuracy of the detection.

[0063] In a possible implementation, the transformer detection tooling further includes a counterweight handrail 7, which is installed on the swing plate 2 and is located outside the transformer detection installation position.

[0064] In the above solution, the counterweight handrail 7 is designed to balance the weight of the swing plate 2, ensuring the smooth movement and accurate positioning of the swing plate 2. This setting is particularly important when dealing with large or heavy transformers because it helps maintain the overall balance of the equipment, ensuring smooth and safe operation. In addition, the counterweight handrail 7 also simplifies the operation process, enabling users to more easily and safely control the swing plate 2 during detection adjustment.

[0065] As Figure 7 and Figure 8 shown, the two swing plates 2 on the left and right of the tooling can rotate independently from the horizontal to the vertical position; place the transformer inside the tooling, and the mounting holes of the lower clamping parts 9 and 10 are positioned and restricted by the welding studs 8 for testing dimensions. When the dimensions meet the requirements, they can be normally matched with the studs 8; when the dimensions do not meet the requirements, they cannot be matched with the studs 8. The core stack thickness dimension is ensured by the maximum dimension welding block 3 and the minimum dimension notch 4 to meet the dimension requirements. When satisfied, normal assembly does not cause interference or expose the notch; when the two swing plates 2 rotate to the vertical state, test whether the front and rear dimensions of the transformer coil 19 meet the requirements. When the dimensions of the transformer coil 19 meet the requirements and do not exceed the maximum dimension, the two swing plates 2 can normally maintain the vertical state, and the positioning surface will touch the bottom plate 1 with a "ding" sound, and the swing plate 2 reaches the balanced state and maintains the vertical state; when the dimensions of the transformer coil 19 do not meet the requirements and the front side or the rear side exceeds the maximum dimension, the two swing plates 2 cannot maintain the vertical state, and the positioning surface cannot touch the bottom plate 1 to make a sound.

[0066] As Figure 6 shown, the swing plate 2 is positioned by three positioning surfaces to ensure that the swing plate 2 meets the six-point positioning principle and is in a fully positioned state; the positioning surface 1 is fixed by the positioning bolt 5 / M10 bolt of the mounting hole on the bottom plate 1 to provide x / y direction positioning; the positioning surface 3 provides z direction positioning for the rotating shaft fixing bolt of the swing plate 2; the positioning surface 2 is the vertical surface of the swing plate 2 to provide y direction positioning and fixing.

[0067] The transformer detection tooling of the present utility model uses a kind of tooling to synchronously detect three related processes, improves the inspection efficiency, and reduces the tolerance influence of repeated positioning detection.

[0068] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and the key point of each embodiment is to describe the differences from other embodiments. The same and similar parts among the various embodiments can be referred to each other.

[0069] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit them; although the present application has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: still can modify the specific implementation manners of the present application or perform equivalent substitution on some technical features; without departing from the spirit of the technical solutions of the present application, they should all be covered within the scope of the technical solutions claimed in the present application.

Claims

1. A transformer detection tool, characterized in that: include: A base plate (1), and two rocking plates (2) mounted on the base plate (1); The two rocking plates (2) can rotate toward the two ends of the bottom plate (1). When the two rocking plates (2) rotate to be perpendicular to the bottom plate (1), the two rocking plates (2) are parallel. The spacing between the two rocking plates (2) when they are perpendicular matches the size of the first detection position of the transformer to be detected. A mounting hole positioning stud (8) is provided on the bottom plate (1), and the mounting hole positioning stud (8) matches the mounting hole at the bottom of the transformer to be tested; Two or more corresponding maximum-size welding blocks (3) are arranged between the two rocking plates (2) on the bottom plate (1) to match the maximum size of the second detection position of the transformer; Two or more corresponding minimum size notches (4) are arranged between two corresponding maximum size welding blocks (3) on the bottom plate (1), matching the minimum size of the second detection position of the transformer; The invention also comprises: a servo hydraulic cylinder (23), a displacement sensor (17), a controller (18), an oil pump (11), a motor (12), an oil cylinder (15) and an electromagnetic reversing valve (14); the servo hydraulic cylinder (23) is connected to the rocking plate (2); the displacement sensor (17) detects the displacement of the servo hydraulic cylinder (23) and sends the displacement to the controller (18); the controller (18) controls the motor (12) to rotate; the motor (12) drives the oil pump (11) to pump hydraulic oil from the oil cylinder (15), and adjusts the flow direction of the oil through the electromagnetic reversing valve (14), thereby controlling the extension and contraction direction of the servo hydraulic cylinder (23) and driving the rocking plate (2) to swing.

2. The transformer detection tooling according to claim 1, characterized in that: The first detection position of the transformer is the coils (19) on two opposite sides of the transformer.

3. The transformer detection tooling according to claim 2, characterized in that: The second detection position of the transformer is the front lower clamping piece (9) and the rear lower clamping piece (10) at the bottom of the transformer.

4. The transformer detection tooling according to claim 3, characterized in that: Also includes: The filter (16) and the throttle valve (22) are connected in sequence between the oil pump (11) and the oil circuit of the electromagnetic reversing valve (14).

5. The transformer detection tooling according to claim 4, characterized in that: Also includes: The overflow valve (13) is connected between the filter (16) and the oil circuit of the oil cylinder (15).

6. The transformer detection tooling according to claim 5, characterized in that: The rocking plate (2) is mounted on the maximum-size welding block (3) through a fixing bolt (5) and a fixing nut (6), and the rocking plate (2) rotates around the fixing bolt (5).

7. The transformer detection tooling according to claim 6, characterized in that: Also includes: The counterweight handrail (7) is installed on the rocking plate (2) at the outer side of the transformer detection installation position.

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