Stamping die for processing front cover of transformer

Abstract

The utility model discloses a stamping die for processing a front cover of a transformer, which relates to the technical field of transformers and comprises a die holder, one side of the die holder is fixedly connected with a fixing frame, the top end of the fixing frame is fixedly connected with a first air cylinder, and the output end of the first air cylinder is fixedly connected with a moving plate. The bottom end of the movable plate is fixedly connected with a stamping head, and a die groove is formed in the top end of the die base. By the adoption of the structure, after the springback plate is impacted by the stamping head, the first spring below the springback plate begins to deform, meanwhile, the springback plate drives the adsorption rod to slide downwards, and after the adsorption rod makes contact with the electromagnet, the adsorption rod is adsorbed and fixed under the action of the electromagnet, so that the first spring is kept stable, and the service life of the first spring is prolonged. The stability and the reliability of stamping operation are remarkably improved, any tiny influence on the stamping part caused by micro movement of the springback plate is fundamentally avoided, and the consistency of the size precision and the shape of the stamping part in the manufacturing process is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of transformer technology, and specifically relates to a stamping die for processing transformer front covers. Background Technology

[0002] Transformers are an indispensable and important component in power systems. Transformers mainly operate based on the principle of electromagnetic induction and are devices that transform AC voltage, current, and impedance. The transformer front cover is an important part of the transformer, mainly serving to protect the internal components. The processing of the transformer front cover requires the use of stamping dies.

[0003] For example, Chinese patent CN220426550U discloses a stamping die for a transformer housing blank, including an upper die base and a lower die base. A punch is provided below the upper die base, and a die is provided above the lower die base. A spring plate that can move up and down is provided on the die, and a material leakage hole is provided in the center of the lower die base.

[0004] The aforementioned patent allows for timely ejection of the stamped parts after stamping, making it easier for operators to remove the transformer shell blank, saving operation time, improving work efficiency, and solving the problem of the shell not easily coming out of the mold after stamping. However, the stamping die still has some defects that need improvement. After the stamped parts on the spring plate are impacted by the stamping head, the spring connected to the spring plate deforms. However, due to the characteristics of the spring, the stamped parts on the spring plate are not placed stably, which is not conducive to the processing of the stamped parts. Furthermore, after the stamped parts are processed, the spring plate needs to vibrate continuously for a while. This vibration not only prolongs the mold reset time but also increases the inconvenience for operators to wait for the stamping die to stabilize before removing it, thus hindering the smooth progress of the stamping operation to a certain extent. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a stamping die for processing the front cover of a transformer, so as to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A stamping die for processing a transformer front cover includes a die base, a fixed frame fixedly connected to one side of the die base, a first cylinder fixedly connected to the top of the fixed frame, a movable plate fixedly connected to the output end of the first cylinder, a stamping head fixedly connected to the bottom end of the movable plate, a die groove formed at the top of the die base, the stamping head being movably connected to the die groove, a pushing mechanism provided inside the die groove, a spring plate movably connected inside the die groove through the pushing mechanism, second cylinders fixedly connected to both sides of the die base, and a support mechanism movably connected to one side of the spring plate inside the die groove through the second cylinder.

[0008] As a preferred technical solution, the mold base is fixedly connected to both sides of the mold groove with fixed rods, the fixed rods are fixedly connected to the fixed frame, and the movable plate is slidably connected to the outer surface of the fixed rods.

[0009] As a preferred technical solution, the estimation mechanism includes a first mounting groove, which is formed inside the mold groove. A fixing block is fixedly connected inside the first mounting groove. A first spring is fixedly connected to the top of the fixing block. The top of the first spring is fixedly connected to the bottom of the rebound plate. An adsorption rod is fixedly connected to the inner side of the first spring as the rebound plate moves downward. An electromagnet is fixedly connected inside the first mounting groove. The adsorption rod is movably connected to the electromagnet.

[0010] As a preferred technical solution, the fixing block has a through hole inside, the adsorption rod is movably connected to the through hole, the through hole has a guide groove inside, a guide block is slidably connected inside the guide groove, and the guide block is fixedly connected to the adsorption rod.

[0011] As a preferred technical solution, the support mechanism includes a second mounting groove, which is opened in the mold groove and located on both sides of the first mounting groove. An assembly block is slidably connected inside the second mounting groove, and the assembly block is fixedly connected to the output end of the second cylinder.

[0012] As a preferred technical solution, a second spring and a damper are fixedly connected to the top of the assembly block. The second spring is sleeved on the outside of the damper. A support rubber block is fixedly connected to the top of the second spring and the damper together. The upper side of the support rubber block is movably connected to the lower side of the rebound plate.

[0013] In summary, the present invention has the following main advantages:

[0014] First, in this utility model, after the spring plate is impacted by the stamping head, the first spring below the spring plate begins to deform. At the same time, the spring plate drives the adsorption rod to slide downward. When the adsorption rod contacts the electromagnet, it is adsorbed and fixed under the action of the electromagnet, thereby keeping the first spring stable. This significantly improves the stability and reliability of the stamping operation and fundamentally avoids any minor impact on the stamped parts caused by the slight movement of the spring plate, ensuring the dimensional accuracy and shape consistency of the stamped parts during the manufacturing process.

[0015] Secondly, in this utility model, by installing a second cylinder on the mold base, and the second cylinder being connected to the support mechanism, when the spring plate is reset, the second cylinder drives the support mechanism to extend under the spring plate, which can limit the spring plate from continuing to vibrate, and the mold can be reset more quickly, preparing for the next stamping operation. This not only shortens the time of each stamping cycle, but also reduces the time for operators to wait for the mold to stabilize, thereby significantly improving the overall production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a bottom view structural diagram of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the mold groove structure of this utility model;

[0019] Figure 4 This is a utility model Figure 3 A magnified structural diagram at point A;

[0020] Figure 5 This is a schematic diagram of the assembly block structure of this utility model.

[0021] Reference numerals in the attached drawings: 1. Mold base; 2. Fixing frame; 3. First cylinder; 4. Moving plate; 5. Punching head; 6. Fixing rod; 7. Mold groove; 8. Spring plate; 9. Pushing mechanism; 91. Adsorption rod; 92. Fixing block; 93. First spring; 94. First mounting groove; 95. Electromagnet; 96. Through hole; 97. Guide groove; 98. Guide block; 10. Second cylinder; 11. Support mechanism; 101. Second mounting groove; 102. Assembly block; 103. Second spring; 104. Damper; 105. Supporting rubber block. Detailed Implementation

[0022] Example

[0023] refer to Figures 1 to 5The stamping die for processing a transformer front cover according to this embodiment includes a die base 1. A fixing frame 2 is fixedly connected to one side of the die base 1. A first cylinder 3 is fixedly connected to the top of the fixing frame 2. A moving plate 4 is fixedly connected to the output end of the first cylinder 3. A stamping head 5 is fixedly connected to the bottom end of the moving plate 4. A die groove 7 is opened at the top of the die base 1. The stamping head 5 is movably connected to the die groove 7. A pushing mechanism 9 is provided inside the die groove 7. A spring plate 8 is movably connected inside the die groove 7 through the pushing mechanism 9. A second cylinder 10 is fixedly connected to both sides of the die base 1. A support mechanism 11 is movably connected to one side of the spring plate 8 inside the die groove 7 through the second cylinder 10. Through the above improvements, the stamping process of the transformer front cover can be made more reliable, the overall production line efficiency can be improved, and more efficient and reliable production can be achieved.

[0024] refer to Figure 1 The mold base 1 is fixedly connected to both sides of the mold groove 7 with fixed rods 6. The fixed rods 6 are fixedly connected to the fixed frame 2. The moving plate 4 is slidably connected to the outer surface of the fixed rods 6. By setting the fixed rods 6, the moving plate 4 drives the stamping head 5 to move more stably, avoiding the occurrence of deviation, which is conducive to the stamping work of the transformer front cover.

[0025] refer to Figure 4 The estimation mechanism 9 includes a first mounting groove 94, which is located inside the mold groove 7. A fixing block 92 is fixedly connected inside the first mounting groove 94. A first spring 93 is fixedly connected to the top of the fixing block 92. The top of the first spring 93 is fixedly connected to the bottom of the spring plate 8. An adsorption rod 91 is fixedly connected to the inner side of the first spring 93 as the spring plate 8 moves downward. An electromagnet 95 is fixedly connected inside the first mounting groove 94. The adsorption rod 91 is movably connected to the electromagnet 95. By setting a pushing mechanism, when the spring plate 8 in the mold groove 7 is subjected to a punching force, the first spring 93 connected to it deforms. At the same time, the adsorption rod 91 moves downward and contacts the electromagnet 95, and is fixed under the strong magnetic attraction, preventing the first spring 93 from making slight movements, thereby facilitating the punching of the transformer front cover.

[0026] refer to Figure 4 The fixing block 92 has a through hole 96 inside, and the adsorption rod 91 is movably connected to the through hole 96. The through hole 96 has a guide groove 97 inside, and a guide block 98 is slidably connected inside the guide groove 97. The guide block 98 is fixedly connected to the adsorption rod 91. By setting the through hole 96, the adsorption rod 91 can pass through the fixing block 92 and contact the electromagnet 95. The guide groove 97 and the guide block 98 make the movement of the adsorption rod 91 more stable and prevent it from deviating, thus facilitating the contact of the adsorption rod 91 with the electromagnet 95.

[0027] Reference image Figure 1 , Figure 3 , Figure 4 The support mechanism 11 includes a second mounting groove 101, which is formed within the mold groove 7 on both sides of the first mounting groove 94. An assembly block 102 is slidably connected inside the second mounting groove 101. The assembly block 102 is fixedly connected to the output end of the second cylinder 10. A second spring 103 and a damper 104 are fixedly connected to the top of the assembly block 102. The second spring 103 is sleeved on the outside of the damper 104. A support rubber block 105 is fixedly connected to the top of both the second spring 103 and the damper 104. The upper side of block 105 is movably connected to the lower side of spring plate 8; by setting support mechanism 11, second cylinder 10 drives assembly block 102 to move, so that assembly block 102 moves to below spring plate 8 after reset. When spring plate 8 rebounds slightly again, it provides necessary support in time, reduces the rebound amplitude of spring plate 8 under the action of friction, and keeps support block 105 stable under the action of second spring 103 and damper 104 between support block 105 and assembly plate, so that spring plate 8 can drive mold to quickly reset upward after mold processing.

[0028] Operating principle and advantages: The stamping die is placed on the die base 1. The first cylinder 3 drives the moving plate 4 to move, which in turn drives the stamping head 5 to press the stamping die in the die groove 7. After the spring plate 8 is impacted by the stamping head 5, the first spring 93 below the spring plate 8 begins to deform. At the same time, the spring plate 8 drives the suction rod 91 to slide downward. When the suction rod 91 contacts the electromagnet 95, the electromagnet 95 attracts and fixes the suction rod 91, thus keeping the first spring 93 stable and avoiding any slight impact on the stamped part caused by the slight movement of the spring plate 8. To ensure the dimensional accuracy and shape consistency of the stamped parts during the manufacturing process, after the spring plate 8 is reset, the second cylinder 10 drives the assembly block 102 to move, so that the assembly block 102 moves below the reset spring plate 8. When the spring plate 8 experiences a slight rebound again, it provides necessary support in time, reduces the rebound amplitude of the spring plate 8 under the action of friction, and keeps the support block 105 stable under the action of the second spring 103 and the damper 104 between the support block 105 and the assembly plate, so that the spring plate 8 can drive the mold to quickly reset upward after the mold is processed.

Claims

1. A stamping die for processing a transformer front cover, comprising a die base (1), characterized in that: A fixed frame (2) is fixedly connected to one side of the mold base (1). A first cylinder (3) is fixedly connected to the top of the fixed frame (2). A moving plate (4) is fixedly connected to the output end of the first cylinder (3). A punching head (5) is fixedly connected to the bottom end of the moving plate (4). A mold groove (7) is opened at the top of the mold base (1). The punching head (5) is movably connected to the mold groove (7). A pushing mechanism (9) is provided inside the mold groove (7). A spring plate (8) is movably connected inside the mold groove (7) through the pushing mechanism (9). A second cylinder (10) is fixedly connected to both sides of the mold base (1). A support mechanism (11) is movably connected to one side of the spring plate (8) inside the mold groove (7) through the second cylinder (10).

2. The stamping die for processing a transformer front cover according to claim 1, characterized in that: The mold base (1) is fixedly connected to both sides of the mold groove (7) with fixed rods (6). The fixed rods (6) are fixedly connected to the fixed frame (2). The movable plate (4) is slidably connected to the outer surface of the fixed rods (6).

3. The stamping die for processing a transformer front cover according to claim 1, characterized in that: The estimation mechanism (9) includes a first mounting groove (94), which is opened inside the mold groove (7). A fixing block (92) is fixedly connected inside the first mounting groove (94). A first spring (93) is fixedly connected to the top of the fixing block (92). The top of the first spring (93) is fixedly connected to the bottom of the rebound plate (8). An adsorption rod (91) is fixedly connected to the inner side of the first spring (93) when the rebound plate (8) moves downward. An electromagnet (95) is fixedly connected inside the first mounting groove (94). The adsorption rod (91) and the electromagnet (95) are movably connected.

4. The stamping die for processing a transformer front cover according to claim 3, characterized in that: The fixed block (92) has a through hole (96) inside, and the adsorption rod (91) is movably connected to the through hole (96).

5. The stamping die for processing a transformer front cover according to claim 4, characterized in that: The through hole (96) has a guide groove (97) inside, and a guide block (98) is slidably connected inside the guide groove (97). The guide block (98) is fixedly connected to the adsorption rod (91).

6. The stamping die for processing a transformer front cover according to claim 3, characterized in that: The support mechanism (11) includes a second mounting groove (101), which is located in the mold groove (7) on both sides of the first mounting groove (94). An assembly block (102) is slidably connected inside the second mounting groove (101), and the assembly block (102) is fixedly connected to the output end of the second cylinder (10).

7. The stamping die for processing a transformer front cover according to claim 6, characterized in that: The top end of the assembly block (102) is fixedly connected to a second spring (103) and a damper (104). The second spring (103) is sleeved on the outside of the damper (104). The top ends of the second spring (103) and the damper (104) are fixedly connected to a support rubber block (105). The upper side of the support rubber block (105) is movably connected to the lower side of the spring plate (8).

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