A transformer core steel sheet blanking device
By employing precise positioning, continuous feeding, and real-time adjustment of the punching force, the problems of uneven feeding and poor punching accuracy in the transformer core steel sheet punching device have been solved, thereby improving production efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG PUTIAN POWER EQUIP CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-26
AI Technical Summary
Existing transformer core steel sheet punching devices suffer from uneven feeding, poor punching accuracy, and low production efficiency, which affect the performance and reliability of transformers.
It adopts a precise positioning and alignment structure, a continuous and stable feeding method, real-time monitoring and adjustment of the punching force, and a buffer device to ensure punching accuracy and production efficiency.
It improves the punching accuracy and production efficiency of steel sheets, reduces positional deviation, adapts to the feeding requirements of steel sheets of different sizes, and protects the stability of the equipment.
Smart Images
Figure CN224406176U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformer core steel sheet processing technology, specifically a transformer core steel sheet punching device. Background Technology
[0002] In the manufacturing process of transformers, the blanking process of the core steel sheets is crucial. The blanking accuracy of the steel sheets directly affects the performance and quality of the transformer. Although existing blanking equipment can complete the basic blanking tasks of steel sheets, there are still many problems in practical applications, affecting production efficiency and processing quality.
[0003] Currently, most blanking equipment uses a relatively simple feeding system, which often requires manual labor or robotic arms to feed the steel sheets into the stamping die. This feeding method is not only slow, but also prone to problems such as uneven feeding, pauses, and jamming, resulting in a discontinuous blanking process and affecting overall production efficiency.
[0004] Although existing equipment can complete the blanking task, factors such as inadequate feeding systems, unstable blanking forces, and wear of blanking dies result in poor blanking accuracy of the steel sheets. The dimensions and shapes of the core steel sheets do not meet requirements, affecting the assembly accuracy of the transformer core and consequently impacting the transformer's performance and reliability. Especially in mass production, the accumulation of blanking errors can lead to a decrease in the yield rate and increase production costs.
[0005] Therefore, based on the above-mentioned technical problems, it is necessary for those skilled in the art to develop a punching device for transformer core steel sheets. Utility Model Content
[0006] The purpose of this invention is to provide a punching device for transformer core steel sheets to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A technical solution for a transformer core steel sheet punching device includes:
[0009] The blanking machine frame is equipped with a top plate;
[0010] The blanking support is fixed on the blanking machine frame and includes a blanking bottom die, a blanking top die, and a blanking cylinder that drives the blanking top die to move up and down. The contact surfaces of the blanking bottom die and the blanking top die are provided with positioning holes and positioning rods to achieve precise alignment during blanking.
[0011] The material rack, installed on one side of the punching machine frame, includes a pusher cylinder, a pusher seat connected to the pusher cylinder, and a pusher channel for the steel sheet to pass through. The pusher cylinder is fixed to the material rack by the cylinder seat and is used to continuously push the steel sheet to the processing area of the punching die.
[0012] As a preferred technical solution, the punching cylinder is mounted on the top plate, and its output end is connected to a top die mounting base, which is connected to the punching top die.
[0013] As a preferred technical solution, the fitting accuracy between the positioning rod and the positioning hole is ±0.02mm, which is used to eliminate positional deviations during the punching process.
[0014] As a preferred technical solution, the feeding channel is installed in a detachable connection to accommodate the feeding needs of steel sheets of different sizes.
[0015] As a preferred technical solution, the punching cylinder is a double-acting cylinder, and its output end is connected to a pressure sensor to monitor and adjust the punching force in real time to ensure consistent punching accuracy.
[0016] As a preferred technical solution, a buffer device is provided between the material rack and the punching machine frame to absorb the vibration and impact during the material pushing process.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] This utility model relates to a punching device for transformer core steel sheets. The device comprises a punching frame, a punching support, and a material rack. Through precise positioning, continuous and stable feeding, and real-time monitoring and adjustment of the punching force, it effectively solves the problems of uneven feeding, poor punching accuracy, and low production efficiency in existing punching devices. Specifically, by using positioning holes and rods with an accuracy of ±0.02mm, this utility model significantly eliminates positional deviations during the punching process, improving the punching accuracy of the steel sheets. Furthermore, the pusher channel is detachably connected, adapting to the feeding needs of steel sheets of different sizes, making the feeding process more flexible and convenient. In addition, the punching cylinder is a double-acting cylinder with a pressure sensor connected to its output end, enabling real-time monitoring and adjustment of the punching force to ensure consistent punching accuracy, further improving production efficiency and processing quality. A buffer device between the material rack and the punching frame effectively absorbs vibration and impact during the pushing process, protecting the overall stability of the punching device. This utility model has the advantages of simple structure, convenient operation, high punching accuracy, and high production efficiency. Attached Figure Description
[0019] Figure 1 A side view of a punching device for transformer core steel sheets;
[0020] Figure 2 A frontal three-dimensional structural schematic diagram of a transformer core steel sheet punching device;
[0021] Figure 3 This is a three-dimensional structural diagram of the back of a transformer core steel sheet punching device.
[0022] In the attached diagram, the following are the reference numerals: 1. Blanking frame; 11. Top plate; 2. Blanking support; 21. Blanking bottom die; 22. Positioning hole; 23. Blanking cylinder; 24. Top die mounting base; 25. Blanking top die; 26. Positioning rod; 3. Material rack; 31. Cylinder seat; 32. Pushing cylinder; 33. Pushing seat; 34. Pushing channel. Detailed Implementation
[0023] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. For those skilled in the art, this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples.
[0024] like Figure 1 , Figure 2 , Figure 3 As shown, this utility model provides a technical solution for a transformer core steel sheet punching device: it includes a punching frame 1, which is the basic structure of the entire device, and a top plate 11 is provided on its top. The top plate 11 is used to support the punching bracket 2 and can provide sufficient strength and stability to withstand the force during the punching process.
[0025] The blanking support 2 is fixed on the blanking machine frame 1, such as Figure 2 As shown, the blanking support 2 includes a blanking bottom die 21, a blanking top die 25, and a blanking cylinder 23 that drives the blanking top die 25 to move up and down. The contact surfaces of the blanking bottom die 21 and the blanking top die 25 are provided with positioning holes 22 and positioning rods 26 to achieve precise alignment during blanking. The fitting accuracy between the positioning rod 26 and the positioning hole 22 is as high as ±0.02mm, ensuring that the positional deviation during the blanking process is minimized, thereby improving the blanking accuracy of the steel sheet.
[0026] The material rack 3 is installed on one side of the punching machine frame 1, such as... Figure 3As shown. The material rack 3 includes a pushing cylinder 32, a pushing seat 33 connected to the pushing cylinder 32, and a pushing channel 34 for the steel sheet to pass through. The pushing cylinder 32 is fixed to the material rack 3 via the cylinder seat 31 and is used to continuously push the steel sheet to the processing area of the punching die 21. The pushing channel 34 is detachably connected. Specifically, by assembling and disassembling different sized pushing channels 34, it can adapt to the feeding requirements of steel sheets of different sizes, making the feeding process more flexible and convenient.
[0027] The blanking cylinder 23 is mounted on the top plate 11, and its output end is connected to the top die mounting base 24, which is connected to the blanking top die 25. The blanking cylinder 23 is a double-acting cylinder, and its output end is connected to a pressure sensor to monitor and adjust the blanking force in real time to ensure consistent blanking accuracy.
[0028] A buffer device is provided between the material rack 3 and the punching machine frame 1 to absorb the vibration and impact during the material pushing process and protect the overall stability of the punching device.
[0029] In summary, the transformer core steel sheet punching device of this invention effectively solves the problems of uneven feeding, poor punching accuracy, and low production efficiency of existing punching devices through precise positioning and alignment, continuous and stable feeding, and real-time monitoring and adjustment of punching force. This device has the advantages of simple structure, convenient operation, high punching accuracy, and high production efficiency.
[0030] The working principle and usage process of this utility model: After assembling the various components of this solution in sequence, work according to the above implementation methods according to actual needs to complete all working steps.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
[0032] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0034] The embodiments described above are not exhaustive, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the protection scope of the invention.
Claims
1. A punching device for transformer core steel sheets, characterized in that, include: The punching machine frame (1) has a top plate (11) on its top; The blanking bracket (2) is fixed on the blanking machine frame (1) and includes a blanking bottom die (21), a blanking top die (25), and a blanking cylinder (23) for driving the blanking top die (25) to move up and down. The contact surface between the blanking bottom die (21) and the blanking top die (25) is provided with a positioning hole (22) and a positioning rod (26) to achieve accurate alignment during blanking. The material rack (3) is installed on one side of the punching machine frame (1) and includes a pusher cylinder (32), a pusher seat (33) connected to the pusher cylinder (32), and a pusher channel (34) for the steel sheet to pass through. The pusher cylinder (32) is fixed on the material rack (3) by a cylinder seat (31) and is used to continuously push the steel sheet to the processing area of the punching die (21).
2. The transformer core steel sheet punching device according to claim 1, characterized in that: The punching cylinder (23) is mounted on the top plate (11), and its output end is connected to the top die mounting base (24), which is connected to the punching top die (25).
3. The transformer core steel sheet punching device according to claim 1, characterized in that: The positioning rod (26) and the positioning hole (22) have a fitting accuracy of ±0.02mm, which is used to eliminate positional deviations during the punching process.
4. The transformer core steel sheet punching device according to claim 1, characterized in that: The feeding channel (34) is installed in a detachable connection to accommodate the feeding needs of steel sheets of different sizes.
5. The transformer core steel sheet punching device according to claim 1, characterized in that: The blanking cylinder (23) is a double-acting cylinder with a pressure sensor connected to its output end to monitor and adjust the blanking force in real time, ensuring consistent blanking accuracy.
6. The transformer core steel sheet punching device according to claim 1, characterized in that: A buffer device is provided between the material rack (3) and the punching machine frame (1) to absorb the vibration and impact during the material pushing process.