Cutting device for transformer iron core
By using the cutting blade and cam structure of the transformer core cutting device, the problems of high energy consumption and inconvenient fixation in hydraulic cutting are solved, achieving high-precision point and line cutting and stable cutting of silicon steel sheets.
Patent Information
- Application Number
- CN202420200972.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-01-26
AI Technical Summary
The cutting of existing transformer cores is mainly done by hydraulic stamping, which consumes a lot of energy and makes it inconvenient to fix the silicon steel sheets during cutting, resulting in cutting deviation and reduced accuracy.
The device employs a cutting blade and cam structure, combined with a positioning block and transmission mechanism, to achieve point and line cutting and stable fixation of silicon steel sheets. The rotating shaft is driven by a motor, and the silicon steel sheets are fixed and cut by the cooperation of the cam and the push rod.
It reduces energy consumption, improves cutting accuracy, and ensures stable fixing and precise cutting of silicon steel sheets.
Smart Images
Figure CN222344341U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to a cutting device for a transformer iron core. Background Art
[0002] The iron core is the main magnetic circuit part of the transformer. It is usually made of stacked silicon steel sheets with a high silicon content. The iron core and the coil wound on it form a complete electromagnetic induction system. The power transmitted by the power transformer depends on the material and cross-sectional area of the iron core. The iron core silicon steel is generally E-shaped.
[0003] The existing transformer core cutting is mostly performed by hydraulic stamping and cutting, which requires a large amount of energy consumption and is inconvenient to fix the silicon steel sheet during cutting, resulting in cutting deviation and reduced precision. Therefore, we propose a transformer core cutting device to solve the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide a cutting device for transformer cores to solve the problem that the current cutting of transformer cores is mostly performed by hydraulic stamping and cutting, which requires large energy consumption and is inconvenient to fix the silicon steel sheets during cutting, resulting in cutting deviation and reduced precision.
[0005] To achieve the above purpose, the utility model provides the following technical solution: a cutting device for a transformer core, comprising:
[0006] A cutting table, wherein a positioning block is provided at the rear side of the top of the cutting table, and a top frame is connected to the top of the cutting table, a rotating shaft is installed at the rear end of the cutting table, and a motor is connected to the right end of the rotating shaft, and the motor is fixedly connected to the cutting table, and a cutting knife and a cam are provided on the outside of the rotating shaft, and the cam is provided on the outside of the cutting knife;
[0007] A push rod, the push rod is arranged at the bottom of the top frame, and the top of the push rod is connected to the bottom of the adjusting rod, a driving rod is arranged at the top of the top frame, and the rear end of the driving rod is connected to the top of the adjusting rod, a first spring is arranged at the front end of the driving rod, and a pressure block is arranged under the driving rod, an extrusion rod is arranged inside the top of the top frame, and a guide groove is opened at the top of the extrusion rod, and the driving rod is arranged inside the guide groove, a second spring is connected to the outside of the top of the extrusion rod, and a pressure plate is connected to the bottom end of the extrusion rod.
[0008] Preferably, the positioning block is bilaterally symmetrically arranged on the cutting table, and the positioning block is in an "L"-shaped structure, and a chamfer is provided at the front end of the positioning block.
[0009] Preferably, the cutting knife has a "concave" structure when viewed from above, and the cutting knife at the front end of the cutting knife has a "W"-shaped structure.
[0010] Preferably, the cam and the push rod are arranged correspondingly up and down, and the cam and the push rod are rollingly connected through a pulley, and the push rod and the top frame form a sliding structure.
[0011] Preferably, the upper and lower ends of the adjusting rod are rotatably connected to the driving rod and the top rod respectively, and the driving rod and the top frame form a sliding structure.
[0012] Preferably, the bottom of the pressing block is arranged in an inclined structure, and the motor forms a transmission mechanism through the adjusting rod, the driving rod, the pressing block and the extrusion rod, and the extrusion rod and the top frame form a telescopic structure.
[0013] Compared with the prior art, the utility model has the following beneficial effects: the cutting device for the transformer core is convenient for fixing the silicon steel sheet, convenient for stable cutting, and improves the cutting accuracy, and changes the plane contact cutting mode of the transmission into point-line cutting, thereby reducing the contact area and facilitating the reduction of energy consumption;
[0014] 1. A cutting knife and a rotating shaft are provided, and the cutting knife and the cam rotate through the rotating shaft. The cutting knife has a "concave" structure when viewed from above, and the cutting knife at the front end of the cutting knife has a "W"-shaped structure. The plane contact cutting mode of the transmission is changed to point-line cutting, which reduces the contact area and facilitates reducing energy consumption;
[0015] 2. A cam and a push rod are provided. The cam rotates through the rotating shaft. The cam's protrusions and recesses facilitate the push rod to be lifted or lowered, which provides power for the fixation of the silicon steel sheet. The cam and the push rod are connected by a pulley to reduce friction.
[0016] 3. A driving rod and an extrusion rod are provided. When the driving rod moves, the pressure block squeezes the guide groove in the extrusion rod, so that the extrusion rod drives the pressure plate to move downward, fixes the silicon steel sheet, facilitates stable cutting, and improves cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the front view cutaway structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the cutting table of the utility model from a top view;
[0019] Figure 3 This is a front view structural diagram of the connection between the driving rod and the extrusion rod of the utility model;
[0020] Figure 4 This is a schematic diagram of the overall structure of the cutting knife of the utility model.
[0021] In the figure: 1, cutting table; 2, positioning block; 3, top frame; 4, rotating shaft; 5, cutting knife; 6, cam; 7, motor; 8, top rod; 9, driving rod; 10, adjusting rod; 11, first spring; 12, pressure block; 13, extrusion rod; 14, guide groove; 15, second spring; 16, pressure plate. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1-4 The utility model provides a technical solution: a cutting device for a transformer core, comprising: a cutting table 1, a positioning block 2, a top frame 3, a rotating shaft 4, a cutting knife 5, a cam 6, a motor 7, a top rod 8, a driving rod 9, an adjusting rod 10, a first spring 11, a pressing block 12, an extrusion rod 13, a guide groove 14, a second spring 15 and a pressing plate 16;
[0024] A cutting table 1, a positioning block 2 is provided at the rear side of the top of the cutting table 1, and a top frame 3 is connected to the top of the cutting table 1, a rotating shaft 4 is installed at the rear end of the cutting table 1, and a motor 7 is connected to the right end of the rotating shaft 4, and the motor 7 is fixedly connected to the cutting table 1, and a cutting knife 5 and a cam 6 are provided on the outside of the rotating shaft 4, and the cam 6 is provided on the outside of the cutting knife 5;
[0025] A push rod 8 is arranged at the bottom of the top frame 3, and the top of the push rod 8 is connected to the bottom of the adjusting rod 10. A driving rod 9 is arranged at the top of the top frame 3, and the rear end of the driving rod 9 is connected to the top of the adjusting rod 10. A first spring 11 is arranged at the front end of the driving rod 9, and a pressure block 12 is arranged below the driving rod 9. An extrusion rod 13 is arranged inside the top of the top frame 3, and a guide groove 14 is opened at the top of the extrusion rod 13, and the driving rod 9 is arranged inside the guide groove 14. A second spring 15 is connected to the outside of the top of the extrusion rod 13, and a pressure plate 16 is connected to the bottom end of the extrusion rod 13.
[0026] like Figure 1 , Figure 2 and Figure 4The middle positioning block 2 is symmetrically arranged on the cutting table 1, and the positioning block 2 is in an "L"-shaped structure, and a chamfer is provided at the front end of the positioning block 2 to facilitate the positioning of the silicon steel sheet. The cutting knife 5 is in a "concave" structure when viewed from above, and the cutting knife at the front end of the cutting knife 5 is in a "W"-shaped structure to facilitate the cutting of the silicon steel sheet. The cam 6 and the push rod 8 are arranged correspondingly up and down, and the cam 6 and the push rod 8 are connected in a rolling manner through a pulley, and the push rod 8 and the top frame 3 form a sliding structure to reduce friction.
[0027] like Figure 1 and Figure 3 The upper and lower ends of the middle adjusting rod 10 are rotatably connected to the driving rod 9 and the top rod 8 respectively, and the driving rod 9 and the top frame 3 form a sliding structure, which is convenient for driving the driving rod 9 to slide. The bottom of the pressing block 12 is arranged in an inclined structure, and the motor 7 forms a transmission mechanism with the extrusion rod 13 through the adjusting rod 10, the driving rod 9 and the pressing block 12, and the extrusion rod 13 and the top frame 3 form a telescopic structure, which is convenient for driving the extrusion rod 13 to move downward.
[0028] Working principle: When using the cutting device of the transformer core, Figure 1 As shown, the silicon steel sheet is pushed onto the cutting table 1, and the silicon steel sheet is positioned by the positioning block 2. By starting the motor 7, the motor 7 drives the rotating shaft 4 to rotate, thereby driving the cutting knife 5 and the cam 6 to rotate. When the cam 6 rotates, the cam 6 lifts the push rod 8 through the pulley, so that the push rod 8 pushes the driving rod 9 to slide through the adjusting rod 10, so that the pressure block 12 under the driving rod 9 squeezes the squeezing rod 13 through the guide groove 14, so that the squeezing rod 13 drives the pressing plate 16 to move downward to clamp the silicon steel sheet. When the rotating shaft 4 continues to rotate, the push rod 8 is kept inconvenient by the action of the convex part of the cam 6, and the cutting knife 5 cuts the silicon steel sheet under the rotation of the rotating shaft 4. After the cutting is completed, the push rod 8 contacts the concave part of the cam 6, so that the push rod 8 is reset under the action of gravity, and the driving rod 9 and the squeezing rod 13 are reset respectively under the action of the first spring 11 and the second spring 15. This is the entire working process of the cutting device of the transformer core. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.
[0029] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.
[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A cutting device for a transformer core, characterized in that: include: A cutting table (1), wherein a positioning block (2) is provided at the rear side of the top of the cutting table (1), and a top frame (3) is connected to the top of the cutting table (1), a rotating shaft (4) is installed at the rear end of the cutting table (1), and a motor (7) is connected to the right end of the rotating shaft (4), and the motor (7) is fixedly connected to the cutting table (1), and a cutting knife (5) and a cam (6) are provided on the outside of the rotating shaft (4), and the cam (6) is provided on the outside of the cutting knife (5); A push rod (8), wherein the push rod (8) is arranged at the bottom of the top frame (3), and the top of the push rod (8) is connected to the bottom of the adjusting rod (10), a driving rod (9) is arranged at the top of the top frame (3), and the rear end of the driving rod (9) is connected to the top of the adjusting rod (10), a first spring (11) is arranged at the front end of the driving rod (9), and a pressure block (12) is arranged below the driving rod (9), an extrusion rod (13) is arranged inside the top of the top frame (3), and a guide groove (14) is opened at the top of the extrusion rod (13), and the driving rod (9) is arranged inside the guide groove (14), a second spring (15) is connected to the outside of the top of the extrusion rod (13), and a pressure plate (16) is connected to the bottom end of the extrusion rod (13).
2. A transformer core cutting device according to claim 1, characterized in that: The positioning block (2) is symmetrically arranged on the cutting table (1), and the positioning block (2) is in an "L"-shaped structure, and a chamfer is provided at the front end of the positioning block (2).
3. The transformer core cutting device according to claim 1, characterized in that: The cutting knife (5) has a "concave" structure when viewed from above, and the cutting knife at the front end of the cutting knife (5) is arranged in a "W"-shaped structure.
4. The transformer core cutting device according to claim 1, characterized in that: The cam (6) and the push rod (8) are arranged correspondingly up and down, and the cam (6) and the push rod (8) are rollingly connected via a pulley, and the push rod (8) and the top frame (3) form a sliding structure.
5. The transformer core cutting device according to claim 1, characterized in that: The upper and lower ends of the adjusting rod (10) are rotatably connected to the driving rod (9) and the top rod (8) respectively, and the driving rod (9) and the top frame (3) form a sliding structure.
6. The transformer core cutting device according to claim 1, characterized in that: The bottom of the pressing block (12) is arranged in an inclined structure, and the motor (7) forms a transmission mechanism with the pressing rod (13) through the adjusting rod (10), the driving rod (9) and the pressing block (12), and the pressing rod (13), and the pressing rod (13) and the top frame (3) form a telescopic structure.