Coding steel seal equipment of transformer outer shell

Abstract

The utility model provides a coding steel seal device of a transformer outer shell, which relates to the field of transformer manufacture and comprises a marking head and a processing position which are arranged on a steel seal machine body, the processing position is arranged below the marking head and used for placing a workpiece, and a positioning structure is arranged on the periphery of the processing position to fix the workpiece. The positioning structure comprises a limiting side plate, a movable rod piece and a clamping piece. By arranging the positioning structure capable of being flexibly adjusted, fixing preparation work of workpieces of different sizes can be completed within a short time, so that the equipment adjusting time is shortened, more workpieces can be processed within unit time, and the overall production efficiency is improved. As the workpiece can be stably fixed on the processing position, the marking head cannot be interrupted or mistaken due to the movement of the workpiece when coding steel seal operation is carried out. The stable marking environment ensures the continuity of marking operation, and the conditions of marking failure and re-operation caused by unstable workpiece fixation are reduced.

Description

Technical Field

[0001] The utility model relates to the field of transformer manufacturing, in particular to a coding steel stamping device for a transformer outer shell. Background Art

[0002] In the transformer manufacturing industry, stamping transformer housings with coded steel is an essential step. These coded steel stamps carry key information such as product number, specifications, and production batch, and are crucial for processes such as product quality traceability, inventory management, installation and maintenance, and after-sales identification.

[0003] However, existing transformer housing coding and stamping equipment faces many challenges in practical applications. During the production process, the size and shape of the transformer housing are not uniform, and transformers of different models and powers often have different housing designs. When these workpieces of different sizes and shapes are placed on the processing table for marking, traditional fixtures expose obvious limitations. Traditional fixing methods are usually designed based on specific dimensions or a limited number of standard dimensions and lack sufficient flexibility. This results in the inability to effectively fix the workpiece when faced with a variety of transformer housings, or the need to manually adjust the parameters of the fixture or replace different fixtures, which is a time-consuming and labor-intensive process. Operators need to repeatedly measure and adjust to ensure that the workpiece is in the correct position when the marking head descends for marking. This operating method seriously affects production efficiency and increases production costs. In addition, the frequent adjustment process is prone to introducing human errors.

[0004] In summary, to meet the increasingly diverse production needs of the transformer industry and improve the quality and efficiency of code stamping, a device for stamping transformer housings has been proposed. This device automatically adjusts the mounting method and dimensions for transformer housings of varying sizes and shapes while the workpiece is positioned on the processing table for marking. This effectively ensures workpiece stability during the marking process, ensuring accurate and efficient code stamping. Utility Model Content

[0005] This new device addresses the shortcomings of existing technologies by providing a limiter plate, a movable rod, and a related locking structure. This allows the distance between the two clamping members to be flexibly adjusted based on the size of the transformer housing. Whether the transformer housing is large or small, the clamping distance can be adjusted by simply rotating the first and second locking structures to move the movable rod, without having to replace the entire fixture. This significantly improves the device's adaptability to workpieces of varying sizes.

[0006] In order to solve the above technical problems, the present invention solves the problem of automatically and adaptively adjusting the fixing method and size for transformer housings of different sizes and shapes when the workpiece is placed on a processing table for marking through the following technical solutions.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A coding steel stamping device for a transformer outer shell includes a marking head and a processing position provided on the steel stamping body. The processing position is provided below the marking head for placing a workpiece. A positioning structure is provided on the periphery of the processing position to fix the workpiece. The positioning structure includes a limiting side plate, a movable rod and a clamping member. The limiting side plates are located on both sides of the processing position. The movable rod is movably installed on the limiting side plates. The clamping member is provided at one end of the movable rod facing the workpiece and can be adaptively adjusted.

[0009] Preferably, a movable groove is provided inside the limiting side plate, and the movable groove allows the movable rod to pass through and be fixed by a fastening structure.

[0010] Preferably, the fastening structure includes a first locking structure and a second locking structure, the outer surface of the movable rod is provided with a thread, the thread enables the first locking structure and the second locking structure to be rotatably connected thereto, and one end of the movable rod is connected to a limiting component to limit the first locking structure.

[0011] Preferably, the first locking structure includes a first locking sleeve, a first rotating cylinder and a first extrusion head, the first extrusion head is connected to one end of the first locking sleeve facing the limiting side plate and makes contact with the inner periphery of the movable groove, and the first rotating cylinder is connected to the other end of the first locking sleeve to rotate the first locking sleeve.

[0012] Preferably, the second locking structure includes a second locking sleeve, a second extrusion head and a second rotating cylinder, the second extrusion head is connected to one end of the second locking sleeve facing the limiting side plate and makes contact with the outer periphery of the movable groove, and the second rotating cylinder is connected to the other end of the second locking sleeve to rotate the second locking sleeve.

[0013] Preferably, an anti-slip layer is glued around the inner and outer sides of the movable groove opening.

[0014] Preferably, the movable rod and the clamping member are connected and adjusted through an adaptive structure, and the adaptive structure includes a built-in groove, a telescopic inner rod and a positioning spring. The built-in groove is opened at one end of the movable rod facing the clamping member, one end of the telescopic inner rod is connected to the clamping member, and the other end extends to the inside of the built-in groove for movement, and the positioning spring is arranged between the telescopic inner rod and the limiting component.

[0015] Preferably, the clamping member is rotatably connected to the telescopic inner rod via a screw.

[0016] Preferably, the processing position is connected to the steel stamp body through a sliding structure, and the sliding structure includes a fixed base plate, a sliding slot and a plug-in. The sliding slot is fixed inside the steel stamp body, and the sliding slot is opened inside the fixed base plate. The plug-in is connected to the bottom of the processing position and can be inserted into the interior along the sliding slot opening. A limiting end plate is connected to the outer end surface of the plug-in, and a magnetic attraction state is generated between the limiting end plate and the outer wall of the fixed base plate.

[0017] Preferably, a transverse positioning plate is connected between the limiting side plates on both sides to limit the movement of the workpiece, and a side of the transverse positioning plate in contact with the workpiece is evenly glued with an anti-slip convex layer to prevent slipping.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The transformer housing coding stamping device provided herein utilizes position-limiting side plates, a movable rod, and associated locking structures to flexibly adjust the distance between the clamping members on both sides according to the size of the transformer housing workpiece. Whether the transformer housing is large or small, the clamping distance can be adjusted by simply rotating the first and second locking structures to move the movable rod, without having to replace the entire fixture, significantly improving the device's adaptability to workpieces of varying sizes.

[0020] The lateral positioning plate and anti-slip convex layer on the processing position, as well as the clamping member with adsorption properties, can help operators quickly and accurately place the workpiece in the correct position. In mass production, this convenient placement and positioning method can significantly reduce the time of workpiece placement and improve operational efficiency.

[0021] By providing a flexibly adjustable positioning structure, this application can quickly complete the preparation work for workpieces of varying sizes, thereby reducing equipment adjustment time, enabling more workpieces to be processed per unit time, and improving overall production efficiency. Because the workpiece can be securely fixed in place, the marking head will not be interrupted or error-prone during the coding stamping operation due to workpiece movement. This stable marking environment ensures the continuity of the marking operation and reduces marking failures and re-operations caused by unstable workpiece fixation.

[0022] This application ensures that the workpiece maintains its precise position during the marking process through the adaptive clamping of the clamping member, the limiting position of the lateral positioning plate, and the fixation of the movable rod by the related locking structure. This enables the marking head to accurately imprint the code stamp at the predetermined position, avoiding coding errors or unclear issues caused by workpiece deviation. During the marking process, the stable workpiece position enables the marking head to apply uniform pressure to stamp the code. Whether using marking technologies such as laser etching or stamping, the stable workpiece state helps to achieve a clear and consistent code stamp effect, improving product quality and recognizability.

[0023] The processing station in this application is connected to the stamping machine body via a sliding structure and magnetic attraction. This design allows the processing station to be easily removed from the machine body when maintenance or replacement is required. Furthermore, the various components in the device are relatively independent and have clear connections, such as movable rods and locking structures. This allows maintenance personnel to quickly locate and replace faulty components in the event of a device failure, reducing maintenance costs and downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the overall split structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the disassembled partial structure of the processing position, limiting side plate, fixed bottom plate and clamping member of the utility model;

[0028] Figure 4 For this utility model Figure 3 Schematic diagram of the upward-looking structure in ;

[0029] Figure 5 It is a partial structural diagram of the movable rod, the clamping member, the first locking structure and the second locking structure of the utility model;

[0030] Figure 6 This is a schematic diagram of the split partial structure of the movable rod and the clamping member of the utility model;

[0031] Figure 7 It is a partial structural diagram of the first locking structure and the second locking structure of the utility model;

[0032] Figure 8 It is a schematic diagram of the partial structure of the rear cross section of the present utility model;

[0033] Figure 9 It is a schematic diagram of the partial structure of the right side section of the split portion of the processing position, the fixed bottom plate and the limiting side plate of the utility model.

[0034] Explanation of the figure numbers: 1. Stamping body; 2. Marking head; 3. Processing position; 301. Fixed base plate; 302. Sliding slot; 303. Plug-in; 304. Limiting end plate; 305. Horizontal positioning plate; 306. Anti-slip convex layer; 4. Limiting side plate; 401. Movable slot; 402. Anti-slip layer; 5. Movable rod; 501. Limiting component; 502. Built-in slot; 6. Clamping part; 601. Telescopic inner rod; 602. Positioning spring; 7. First locking structure; 701. First locking sleeve; 702. First rotating cylinder; 703. First extrusion head; 8. Second locking structure; 801. Second locking sleeve; 802. Second extrusion head; 803. Second rotating cylinder. DETAILED DESCRIPTION

[0035] The present invention is described in further detail below with reference to the accompanying drawings.

[0036] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0037] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate directions or positions are based on the directions or positional relationships shown in the accompanying drawings, which are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0038] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity. Example

[0039] See also Figure 1-9 A coding steel stamping device for a transformer outer shell includes a marking head 2 and a processing position 3 provided on a steel stamping body 1. The processing position 3 is provided below the marking head 2 for placing a workpiece. A positioning structure is provided on the periphery of the processing position 3 to fix the workpiece. The positioning structure includes a limiting side plate 4, a movable rod 5 and a clamping member 6. The limiting side plate 4 is located on both sides of the processing position 3. The movable rod 5 is movably installed on the limiting side plate 4. The clamping member 6 is provided at one end of the movable rod 5 facing the workpiece and can be adaptively adjusted.

[0040] The coding stamping equipment for the transformer outer shell of the present application is mainly composed of a stamping body 1, a marking head 2, a processing position 3, a limiting side plate 4, a movable rod 5, a clamping member 6, a first locking structure 7 and a second locking structure 8. The following is a detailed structure and working principle.

[0041] (1) Equipment assembly

[0042] Installation of steel stamp body 1 and processing position 3

[0043] The installation process starts from the steel stamp body 1, and the fixed base plate 301 is firmly installed inside the steel stamp body 1. The fixed base plate 301 is precisely provided with a sliding slot 302, which provides positioning and guiding functions for the installation of the subsequent processing position 3.

[0044] The bottom of the processing position 3 is connected to a matching plug-in 303. During installation, carefully insert the plug-in 303 into the sliding slot 302 along its opening direction to ensure that the two fit tightly. The outer end face of the plug-in 303 is firmly connected to the limiting end plate 304. When the plug-in 303 is fully inserted, the limiting end plate 304 is in close contact with the front outer wall of the fixed base plate 301. The magnetic material coated on the front end of the fixed base plate 301 interacts with the limiting end plate 304 made of iron-containing material to produce a strong magnetic effect, ensuring the stability of the processing position 3 on the steel stamp body 1. This design not only ensures the stability of the processing position 3 during normal operation, but also enables the processing position 3 to be easily removed from the steel stamp body 1 when needed, such as equipment maintenance or replacement of processing positions 3 of different specifications.

[0045] Installation of positioning structure

[0046] Installation of limiting side plate 4

[0047] The limiting side plates 4 are installed on either side of the processing station 3 to limit and position the workpiece. A carefully designed movable groove 401 is located inside the limiting side plates 4, providing space for the subsequent movement of the movable rod 5. To ensure stability during operation, especially when locking the movable rod 5, a rubber anti-slip layer 402 is adhered to the inside and outside of the movable groove 401. This rubber anti-slip layer 402 increases friction between the components and prevents unnecessary slippage during the locking process.

[0048] Installation of movable rod 5

[0049] The movable rod 5 is a key component of the positioning structure. Its outer surface is threaded, allowing it to pass through the movable slot 401 of the limiting side plate 4 and adjust its position. One end of the movable rod 5 is connected to a limiting member 501. This member not only limits the range of movement of the movable rod 5 but also prevents other connected components from accidentally falling off during operation, ensuring the integrity and reliability of the entire structure.

[0050] Installation of the clamp 6

[0051] The clamping member 6 is made of a special material that has the property of being able to absorb the workpiece shell, similar to the function of a suction cup. This property enables the clamping member 6 to adaptively fit the shape of the workpiece surface when contacting the transformer shell, thereby better fixing the workpiece.

[0052] The movable rod 5 and the clamping member 6 are connected by an ingeniously designed adaptive structure. This adaptive structure comprises a built-in slot 502 and a positioning spring 602, located on the end of the movable rod 5 facing the clamping member 6. The clamping member 6 is rotationally connected to the telescopic inner rod 601 via a screw. This connection allows the clamping member 6 to move flexibly when pressed by a workpiece. Once the workpiece is in place, the elastic force of the positioning spring 602 securely holds the workpiece.

[0053] Installation of the first locking structure 7 and the second locking structure 8

[0054] The first locking structure 7 consists of a first locking sleeve 701, a first rotating cylinder 702, and a first extrusion head 703. The first rotating cylinder 702 is tightly connected to the first locking sleeve 701, while the first extrusion head 703 is connected to the end of the first locking sleeve 701 facing the limiting side plate 4. The first locking structure 7 is rotatably connected to the movable rod 5 via threads. This allows rotation of the first rotating cylinder 702 to move the first locking sleeve 701 left and right on the movable rod 5, thereby allowing the first extrusion head 703 to tightly contact the inner circumference of the movable groove 401, thereby locking the movable rod 5.

[0055] The structure and working principle of the second locking structure 8 are similar to those of the first locking structure 7. It consists of a second locking sleeve 801, a second extrusion head 802 and a second rotating cylinder 803. The second rotating cylinder 803 is connected to the second locking sleeve 801, and the second extrusion head 802 is connected to one end of the second locking sleeve 801 facing the limiting side plate 4. The second locking structure 8 is also rotatably connected to the movable rod 5 through a thread. During operation, by rotating the second rotating cylinder 803, the second extrusion head 802 can be brought into close contact with the outer periphery of the movable groove 401, thereby locking the movable rod 5 from another direction. In order to facilitate operation by the operator, the outer periphery of the first rotating cylinder 702 and the second rotating cylinder 803 are designed with anti-slip grooves. Such anti-slip grooves can effectively prevent the operator's hands from slipping during rotation, ensuring the accuracy and stability of the operation.

[0056] (2) Operation of coding stamp on transformer shell

[0057] Workpiece placement and positioning

[0058] When stamping the code on the transformer housing, the transformer housing workpiece is first carefully placed on the processing station 3. Since the sizes of the workpieces may vary, the distance between the two limiting side plates 4 needs to be adjusted according to the actual size of the workpiece. During operation, the first rotating cylinder 702 and the second rotating cylinder 803 are rotated to respectively drive the first locking sleeve 701 and the second locking sleeve 801 to move on the movable rod 5, thereby causing the first extrusion head 703 to contact the inner periphery of the movable groove 401 and the second extrusion head 802 to contact the outer periphery of the movable groove 401, thereby firmly fixing the movable rod 5 in the appropriate position and adjusting the distance between the two clamping members 6 to accommodate workpieces of different sizes.

[0059] Workpiece fixing

[0060] When the two ends of the workpiece are placed inside the clamps 6 on both sides, the workpiece will generate an extrusion force on the clamps 6. Because the clamps 6 and the movable rod 5 are connected by an adaptive structure, under the action of the extrusion force, the telescopic inner rod 601 will move inside the built-in groove 502, while compressing the positioning spring 602. When the workpiece is completely placed in place, the positioning spring 602 returns to its original state by its own elastic force, pushing the telescopic inner rod 601 and the clamps 6 connected thereto, thereby tightly clamping the two sides of the workpiece through the clamps 6 and firmly fixing it on the processing position 3. At the same time, in order to prevent the workpiece from moving back and forth during the marking process, the rear ends of the limiting side plates 4 on both sides are fixedly connected with a transverse positioning plate 305. The side of the transverse positioning plate 305 that contacts the workpiece is evenly glued with a rubber anti-slip convex layer 306. This rubber anti-slip convex layer 306 can increase the friction between the workpiece and the workpiece, further ensuring the fixation stability of the workpiece on the processing position 3 and preventing displacement during the marking process.

[0061] Coding stamp operation

[0062] After the workpiece is accurately placed and securely fixed in processing position 3, the marking head 2, under the precise control of the control system, smoothly descends to processing position 3 and performs the code stamping operation on the fixed transformer housing workpiece. By applying appropriate pressure and using specific marking techniques such as laser etching and stamping, the marking head 2 clearly imprints the code stamp containing key information such as the product number, specifications, and production batch on the transformer housing, thus completing the entire code stamping process.

[0063] 2. Detailed working principle

[0064] Installation and fixing principle of processing position 3

[0065] The processing position 3 is connected to the steel stamp body 1 through a unique sliding structure. The precise fit between the plug-in 303 and the sliding slot 302 ensures the accurate installation and positioning of the processing position 3 on the steel stamp body 1. The magnetic attraction between the limiting end plate 304 and the front outer wall of the fixed base plate 301 is the key guarantee for the stability of the processing position 3. This magnetic attraction can withstand various forces generated by the equipment during normal operation, such as impact force during marking, to ensure that the processing position 3 will not be displaced. At the same time, the magnetic connection method allows the operator to easily remove the processing position 3 from the steel stamp body 1 when it is necessary to replace it, which reflects the flexibility and convenience of the design.

[0066] Principles of workpiece positioning and size adjustment

[0067] The movable groove 401 within the limiting side plate 4 provides space for the movable rod 5 to move, which is the basis for adapting to workpieces of varying sizes. By rotating the first locking structure 7 and the second locking structure 8, the contact between the first extrusion head 703 and the second extrusion head 802 and the inner and outer peripheries of the movable groove 401 can be precisely controlled, thereby securely locking the movable rod 5 in the desired position. This method of adjusting and securing the position of the movable rod 5 by rotating the locking structure can flexibly adapt to transformer housing workpieces of varying sizes, ensuring that the workpiece is accurately positioned and secured during the marking process.

[0068] Workpiece fixing principle

[0069] The special material with adsorption properties used in the clamping member 6 enables it to fit tightly to the surface of the workpiece, and can achieve good initial contact and positioning regardless of how the surface shape of the workpiece changes. When the workpiece is placed in the clamping member 6, the extrusion force generated by the workpiece on the clamping member 6 is transmitted and processed through the adaptive structure. The movement of the telescopic inner rod 601 in the built-in groove 502 and the compression and recovery process of the positioning spring 602 constitute an adaptive clamping mechanism. This mechanism can automatically adjust the clamping force according to the actual size and shape of the workpiece to ensure that the workpiece will not be displaced during the marking process. At the same time, the lateral positioning plate 305 and the anti-slip convex layer 306 restrict the workpiece from another direction, forming a full-range fixing system, which effectively ensures the fixation stability of the workpiece on the processing position 3.

[0070] Code stamp operation principle

[0071] The marking head 2 plays a central role in the entire code stamping operation. Under the precise control of the control system, the marking head 2 accurately descends to the workpiece surface at the processing station 3. The marking head 2 generates sufficient pressure through an internal drive mechanism and combines it with specific marking technologies, such as high-precision laser etching for a detailed and durable code stamp, or stamping for a fast and clear stamp. Regardless of the technology used, the marking head 2 accurately imprints the code stamp containing key product information onto the transformer housing, completing the entire code stamping process and ensuring accurate product identification and management during subsequent quality traceability, inventory management, installation and maintenance, and after-sales identification.

[0072] Through this detailed and carefully designed structure and working principle, the coding steel stamping equipment for transformer shells can efficiently and accurately perform coding steel stamping operations on transformer shells of different sizes and shapes, effectively solving many problems existing in traditional equipment in this regard, and significantly improving production efficiency and coding steel stamping quality.

[0073] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended only as examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A coding steel stamping device for transformer housing, comprising a marking head (2) and a processing position (3) provided on a steel stamping machine body (1), characterized in that: The processing position (3) is arranged below the marking head (2) for placing a workpiece. A positioning structure is arranged on the periphery of the processing position (3) to fix the workpiece. The positioning structure includes a limiting side plate (4), a movable rod (5) and a clamping member (6). The limiting side plate (4) is located on both sides of the processing position (3). The movable rod (5) is movably installed on the limiting side plate (4). The clamping member (6) is arranged at one end of the movable rod (5) facing the workpiece and can be adaptively adjusted.

2. The coding stamping device for transformer outer shell according to claim 1, characterized in that: A movable groove (401) is provided inside the limiting side plate (4), and the movable groove (401) allows the movable rod (5) to pass through and be fixed by a fastening structure.

3. The coding stamping device for transformer outer shell according to claim 2, characterized in that: The fastening structure comprises a first locking structure (7) and a second locking structure (8); a thread is provided on the outer surface of the movable rod (5); the thread enables the first locking structure (7) and the second locking structure (8) to be rotatably connected thereto; one end of the movable rod (5) is connected to a limiting component (501) for limiting the first locking structure (7).

4. The coding stamping device for transformer outer shell according to claim 3, characterized in that: The first locking structure (7) comprises a first locking sleeve (701), a first rotating cylinder (702) and a first extrusion head (703), wherein the first extrusion head (703) is connected to one end of the first locking sleeve (701) facing the limiting side plate (4) and comes into contact with the inner periphery of the movable groove (401), and the first rotating cylinder (702) is connected to the other end of the first locking sleeve (701) for rotating the first locking sleeve (701).

5. The coding steel stamping device for transformer outer shell according to claim 3, characterized in that: The second locking structure (8) includes a second locking sleeve (801), a second extrusion head (802) and a second rotating cylinder (803), wherein the second extrusion head (802) is connected to one end of the second locking sleeve (801) facing the limiting side plate (4) and comes into contact with the outer periphery of the movable groove (401), and the second rotating cylinder (803) is connected to the other end of the second locking sleeve (801) for rotating the second locking sleeve (801).

6. The coding steel stamping device for transformer outer shell according to claim 2, characterized in that: The inner and outer peripheries of the opening of the movable groove (401) are glued with anti-slip layers (402).

7. The coding stamping device for transformer outer shell according to claim 1, characterized in that: The movable rod (5) and the clamping member (6) are connected and adjusted via an adaptive structure, wherein the adaptive structure comprises a built-in groove (502), a telescopic inner rod (601) and a positioning spring (602). The built-in groove (502) is provided at one end of the movable rod (5) facing the clamping member (6). One end of the telescopic inner rod (601) is connected to the clamping member (6), and the other end extends into the interior of the built-in groove (502) for movement. The positioning spring (602) is provided between the telescopic inner rod (601) and the limiting member (501).

8. The coding stamping device for transformer outer shell according to claim 7, characterized in that: The clamping member (6) is rotatably connected to the telescopic inner rod (601) via a screw.

9. The coding stamping device for transformer outer shell according to claim 1, characterized in that: The processing position (3) is connected to the steel stamp body (1) through a sliding structure, and the sliding structure includes a fixed base plate (301), a sliding slot (302) and a plug-in (303). The sliding slot (302) is fixed inside the steel stamp body (1), and the sliding slot (302) is opened inside the fixed base plate (301). The plug-in (303) is connected to the bottom of the processing position (3) and can be inserted into the inside along the opening of the sliding slot (302). The outer end surface of the plug-in (303) is connected to a limiting end plate (304), and a magnetic attraction state is generated between the limiting end plate (304) and the outer wall of the fixed base plate (301).

10. The coding stamping device for transformer outer shell according to claim 1, characterized in that: A transverse positioning plate (305) is connected between the limiting side plates (4) on both sides to limit the movement of the workpiece, and a non-slip convex layer (306) is evenly glued on the side of the transverse positioning plate (305) that contacts the workpiece to prevent slipping.

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