Transformer lamination positioning pin

Abstract

The utility model discloses a transformer lamination positioning pin, which belongs to the field of transformer iron core lamination positioning and comprises a supporting part and a head part, one end of the supporting part is used for being inserted into a mounting hole of a lamination workbench, and the head part is positioned at the other end of the supporting part and is coaxially arranged with the supporting part; the head portion is in a frustum shape, and the cross sectional area of the head portion is sequentially reduced from the end close to the supporting portion to the end away from the supporting portion. The positioning pin is simple in structure and convenient to use, when the lamination positioning pin is used for lamination work, interference of the positioning pin on lamination operation during use can be effectively avoided, and the lamination work efficiency is improved; the head of the positioning pin is designed to be in a cone frustum shape, so that the positioning pin can conveniently penetrate through a preset positioning hole in a silicon steel sheet while being conveniently installed on a lamination workbench, rapid positioning of the silicon steel sheet during lamination is achieved, and the lamination working efficiency can be effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of transformer core stacking and positioning, and specifically to a transformer lamination positioning pin. Background Art

[0002] The core is the main magnetic circuit part in a transformer, usually composed of hot-rolled or cold-rolled silicon steel sheets with a relatively high silicon content and an insulating paint coated on the surface. When stacking the existing core laminations, a positioning device is usually required to make the stacking of the core more accurate, prevent the core laminations from shifting during stacking, and ensure the processing quality of the transformer core.

[0003] Chinese Utility Model Patent with the publication number CN221175954U discloses a transformer core lamination positioning device, which can realize the positioning and stacking of core lamination bodies of different models by setting a positioning structure on the lamination workbench. However, it realizes the lamination positioning of silicon steel sheets by the contact between the outer wall of the positioning structure and the edge of the silicon steel sheet, and multiple positioning structures need to be installed on the lamination workbench according to the shape of the silicon steel sheet, which is complex to operate and easily interferes with the lamination operation, affecting the work efficiency of lamination.

[0004] Therefore, this application provides a transformer lamination positioning pin that is easy to operate and convenient for lamination to solve the above problems. Content of the Utility Model

[0005] This application provides a transformer lamination positioning pin, aiming to solve the problems in the background art that the existing transformer core lamination positioning device needs to install multiple positioning structures for use, is not convenient to operate, and is easily interfered with the lamination operation.

[0006] To achieve the above object, this application provides the following technical solution: A transformer lamination positioning pin includes a support portion for inserting into the installation hole of the lamination workbench at one end and a head located at the other end of the support portion and coaxially arranged with the support portion; the head is in a frustum shape, and the cross-sectional area of the head gradually decreases from the end close to the support portion to the end far from the support portion. In this way, during the assembly of the transformer core laminations, by opening holes in the silicon steel sheets, the lamination positioning work of the transformer core can be completed by using two positioning pins inserted into the lamination workbench, which can effectively reduce the use of positioning structures and is convenient for operation; at the same time, it can effectively avoid the interference of the positioning pins on the lamination operation during use and improve the work efficiency of lamination.

[0007] To facilitate the installation of the positioning pin on the lamination workbench and the lamination operation of the silicon steel sheets; preferably, the support portion is in a cylindrical shape, and the head is in a conical frustum shape.

[0008] For the convenience of lamination operation and to avoid the inconsistent areas of the head and the supporting part from affecting the lamination of silicon steel sheets; preferably, the maximum cross-sectional area of the head is equal to the cross-sectional area of the supporting part.

[0009] Preferably, the head and the supporting part are integrally formed.

[0010] This lamination positioning pin has a simple structure and is easy to use. When using this lamination positioning pin for lamination work, it can effectively avoid interference with the lamination operation during use and improve the efficiency of the lamination work.

[0011] The head of this lamination positioning pin is in the shape of a truncated cone, which can facilitate the installation of the positioning pin on the lamination workbench and can easily pass through the preset positioning holes on the silicon steel sheets, realizing the rapid positioning of the silicon steel sheets during lamination and effectively improving the efficiency of the lamination work. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of a transformer lamination positioning pin;

[0013] Figure 2 is a schematic structural diagram of the transformer lamination positioning pin in the working state.

[0014] In the figure:

[0015] 1. Supporting part;

[0016] 2. Head;

[0017] 3. Lamination workbench;

[0018] 31. Installation hole;

[0019] 4. Silicon steel sheet;

[0020] 41. Positioning hole. Detailed Embodiments

[0021] Next, the technical solutions in the embodiments of the present application 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 the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0022] Embodiment 1

[0023] This embodiment provides a transformer lamination positioning pin, as Figure 1As shown in the figure, the transformer lamination positioning pin includes a support portion 1 with one end for inserting into the mounting hole 31 of the lamination workbench 3 and a head portion 2 located at the other end of the support portion 1 and coaxially arranged with the support portion 1. The head portion 2 is used to pass through the positioning hole 41 of the silicon steel sheet 4 during lamination so that the silicon steel sheet 4 is sleeved on the support portion 1; as Figure 2 As shown in the figure, during use, two positioning pins are inserted into the mounting holes 31 on the workbench 3 according to the width of the two positioning holes 41 of the silicon steel sheet 4. During lamination, the head portion 2 is made to pass through the positioning holes 41 at the corresponding positions of the silicon steel sheet 4, so as to be sleeved on the support portion 1 to position the silicon steel sheet 4, facilitating the lamination operation.

[0024] In order to facilitate the lamination and positioning of the silicon steel sheet 4, wherein, the head portion 2 is in the shape of a frustum of a cone, and the cross-sectional area of the head portion 2 decreases sequentially from the end close to the support portion 1 to the end far from the support portion 1, avoiding interference between the head portion 2 and the edge part of the positioning hole 41, enabling the positioning hole 41 of the silicon steel sheet 4 to pass through the head portion 2 and be sleeved on the support portion 1, and improving the lamination efficiency of the silicon steel sheet 4.

[0025] It should be noted that, in order to facilitate the lamination and positioning of the silicon steel sheet 4. It can be understood that when the cross-sectional area of the support portion 1 is larger than the maximum cross-sectional area of the head portion 2, after the positioning hole 41 of the silicon steel sheet 4 passes through the head portion 2, the end of the support portion 1 may limit the silicon steel sheet 4 from continuing to move downward, thus causing interference to the positioning of the silicon steel sheet 4; therefore, the maximum cross-sectional area of the head portion 2 is equal to the cross-sectional area of the support portion 1.

[0026] It is worth mentioning that, in order to ensure the structural stability of the positioning pin and facilitate production and processing, the head portion 2 and the support portion 1 are integrally formed.

[0027] Embodiment 2

[0028] In order to facilitate the positioning and lamination of the silicon steel sheet 4, different from Embodiment 1, as Figure 1 shown in the figure, the support portion 1 is in the shape of a cylinder, and the head portion 2 is in the shape of a frustum of a cone.

[0029] It can be further understood that the cross-sections of both the support portion 1 and the head portion 2 are circular, which can effectively reduce the edges and corners of the support portion 1 and the head portion, facilitating the insertion of the positioning pin, and thus facilitating the positioning and lamination of the silicon steel sheet 4.

[0030] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application, according to the technical solution and its concept of the present application, makes equivalent substitutions or changes, and should be covered within the protection scope of the present application.

Claims

1. A transformer lamination positioning pin, comprising a support portion (1) with one end for inserting into the mounting hole (31) of a lamination workbench (3), and a head portion (2) located at the other end of the support portion (1) and coaxially arranged with the support portion (1); It is characterized in that: The head portion (2) is in the shape of a frustum of a cone, and the cross-sectional area of the head portion (2) gradually decreases from one end close to the support portion (1) to the end far from the support portion (1).

2. The transformer lamination positioning pin according to claim 1, wherein: The support portion (1) is cylindrical, and the head portion (2) is in the shape of a frustum of a cone.

3. The transformer lamination positioning pin according to claim 1 or 2, characterized in that: The maximum cross-sectional area of the head portion (2) is equal to the cross-sectional area of the support portion (1).

4. The transformer lamination positioning pin according to claim 3, wherein: The head portion (2) and the support portion (1) are integrally formed.

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