A micro transformer pin positioning device

Abstract

The utility model discloses a kind of micro transformer pin positioning devices, belong to transformer production technical field, including positioning rod, positioning rod's end portion is suitably fitted with transformer component, the side surface of transformer component is equipped with positioning recess, a plurality of metal spring plate are provided on fixed plate, the side surface of metal spring plate is fixed with convex round block, clamping assembly is arranged between metal spring plate and fixed plate, limiting assembly is provided on fixed plate;When transformer component is sleeved into the end portion of positioning rod in the utility model, the convex round block on metal spring plate is clamped into the positioning recess on transformer component, so as to position locking transformer component, so that pin and U-shaped groove are aligned, effectively improve the accuracy of presser foot operation, improve the overall effect of presser foot processing, when metal spring plate is excessively worn, need to be replaced, metal spring plate can be quickly disassembled and replaced by the clamping assembly set, convenient maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of transformer manufacturing technology, specifically relating to a pin positioning device for a miniature transformer. Background Technology

[0002] A miniature transformer is a small, lightweight, and highly efficient power conversion device, mainly used for voltage transformation, signal isolation, and impedance matching in electronic devices. Its core consists of a high-frequency magnetic core (such as ferrite or nanocrystalline alloy) and precision windings, transferring energy through electromagnetic induction. The transformer's frame is connected to pins for soldering to circuit boards. These pins, typically made of kraft paper and pure copper tin-plated wire, connect the transformer to the circuit board and are mainly used in charger transformers, audio transformers, and power strip transformers. To facilitate production, manufacturers often use the same pin length for all transformers of the same model. During transformer manufacturing, after winding 0.10-0.35 mm diameter copper wire around the pins, the copper wire needs to be pressed to the bottom of the pin. Currently, this is usually done manually, which is labor-intensive and prone to damaging the wire, leading to breakage after soldering. Therefore, a solution has been proposed in the existing technology.

[0003] For example, Chinese Patent Publication No. CN218123219U discloses a device for pressing copper wires on transformer pins, which includes an automatic winding machine frame. A connecting plate is fixed on the outer side of the automatic winding machine frame, and a cover plate is connected to the connecting plate by screws. A spring groove is opened inside the connecting plate, and a sliding groove is opened at the bottom end of the spring groove. A buffer pressing mechanism is slidably connected in the sliding groove. This utility model uses a pull-down buffer pressing mechanism to press the copper wires on the pins in a buffered manner, thereby pressing the copper wires to the bottom of the pins, preventing damage to the copper wires, and eliminating the need for manual pressing of the copper wires, reducing the labor intensity of operators, and effectively improving overall production efficiency.

[0004] The above application still has shortcomings. In the above application, the transformer component is inserted into the end of the positioning rod, and the U-shaped groove on the downward-moving pressure block contacts the pin of the copper wire wound on the transformer component and presses it down to compact the copper wire on the pin. However, when the transformer component is inserted into the end of the positioning rod, it is difficult to ensure that the pin and the U-shaped groove on the pressure block are aligned, making it difficult to position the pin and affecting the accuracy of the operation of compacting the copper wire on the pin. It is necessary to manually adjust the alignment of the pin and the U-shaped groove on the pressure block, which is inconvenient and needs further improvement.

[0005] Therefore, a pin positioning device for miniature transformers is needed to solve the problems mentioned in the background art. Summary of the Invention

[0006] The purpose of this invention is to provide a pin positioning device for a miniature transformer to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a miniature transformer pin positioning device, comprising a positioning rod, a transformer component fitted onto the end of the positioning rod, a fixing plate fixed on the side of the positioning rod located on one side of the transformer component, a positioning groove formed on the side of the transformer component, a plurality of symmetrically distributed metal spring plates provided on the fixing plate, a convex round block fixed on the side of the metal spring plate that fits into the positioning groove, a clamping assembly provided between the metal spring plate and the fixing plate, and a limiting assembly provided on the fixing plate for limiting the clamping assembly.

[0008] It should be noted in the solution that the mounting assembly includes a T-shaped groove formed in the fixing plate, an insert strip is slidably inserted in the T-shaped groove, and the metal spring plate is fixed to the side of the insert strip.

[0009] It is worth noting that the limiting component includes a protruding post fixed to the side of the fixing plate, and a limiting plate rotatably connected to the protruding post to stop and limit one end of the insert inserted into the T-slot.

[0010] Furthermore, it should be noted that a rubber pad is attached and fixed to the side of the limiting plate near the fixing plate.

[0011] In a preferred embodiment, the end of the metal spring plate is provided with a guide ramp.

[0012] In a preferred embodiment, the end of the positioning rod is provided with a pointed tip.

[0013] Compared with the prior art, the miniature transformer pin positioning device provided by this utility model has at least the following beneficial effects: 1. When the transformer components are fitted onto the end of the positioning rod, the convex round block on the metal spring plate engages with the positioning groove on the transformer components, thereby positioning and locking the transformer components, aligning the pins and the U-shaped groove, effectively improving the accuracy of the presser foot operation and the overall effect of the presser foot processing; 2. When the metal spring plate is worn excessively after prolonged use and needs to be replaced, the insert can be pulled outward from the T-slot to quickly remove and replace the metal spring plate, making maintenance convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall front view of the present invention; Figure 3 This is a partial structural diagram of the metal spring plate of this utility model; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a partial structural diagram of the insert of this utility model.

[0015] In the diagram: 1. Mounting assembly; 101. Insert strip; 102. T-slot; 2. Limiting assembly; 201. Limiting plate; 202. Protruding post; 203. Rubber pad; 3. Fixing plate; 4. Positioning rod; 5. Metal spring plate; 6. Convex round block; 7. Guide ramp; 8. Tip; 9. Pin; 10. Transformer components; 11. Copper wire. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments.

[0017] Please see Figure 1-5 This utility model provides a miniature transformer pin positioning device, including a positioning rod 4, with a transformer component 10 fitted onto the end of the positioning rod 4. A fixing plate 3 is fixed to the side of the positioning rod 4, located on one side of the transformer component 10. A positioning groove is formed on the side of the transformer component 10. Multiple symmetrically distributed metal spring plates 5 are provided on the fixing plate 3. A convex round block 6 that fits into the positioning groove is fixed to the side of the metal spring plate 5. A clamping assembly 1 is provided between the metal spring plate 5 and the fixing plate 3. A limiting assembly 2 is provided on the fixing plate 3 to limit the clamping assembly 1. Pins 9 are symmetrically distributed at both ends of the transformer component 10. Copper wires 11 with a diameter of 0.10-0.35 are wound around the pins 9 to fit the transformer component 10. The pressure bar is inserted into the end of the positioning rod 4. The U-shaped groove on the downward-moving pressure block contacts the pin 9 of the copper wire 11 wound on the transformer component 10 and presses it down. The U-shaped groove provides a buffered downward pressure on the copper wire 11 on the pin 9, pressing the copper wire 11 to the bottom of the pin 9. When the transformer component 10 is fitted onto the end of the positioning rod 4, the convex round block 6 on the metal spring plate 5 is engaged into the positioning groove on the transformer component 10, thereby positioning and locking the transformer component 10. This aligns the pin 9 with the U-shaped groove, effectively improving the accuracy of the pressure foot operation and the overall effect of the pressure foot processing. When the metal spring plate 5 is excessively worn and needs to be replaced, the metal spring plate 5 can be quickly removed and replaced through the set clamping component 1, which is convenient for maintenance.

[0018] Further as Figure 1 , Figure 3 and Figure 4As shown, it is worth noting that the mounting assembly 1 includes a T-shaped groove 102 formed in the fixing plate 3. An insert strip 101 is slidably inserted into the T-shaped groove 102, and a metal spring plate 5 is fixed to the side of the insert strip 101. When the metal spring plate 5 is used for a long time and becomes excessively worn and needs to be replaced, the insert strip 101 can be pulled out of the T-shaped groove 102 by pulling it outward, so that the metal spring plate 5 can be quickly removed and replaced for easy maintenance.

[0019] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the limiting component 2 includes a protruding post 202 fixed to the side of the fixing plate 3. A limiting plate 201 is rotatably connected to the protruding post 202 to stop and limit one end of the insert 101 inserted into the T-groove 102. When the insert 101 is inserted into the T-groove 102, by rotating the limiting plate 201, the limiting plate 201 stops and limits the end of the insert 101, thereby improving the stability of the insert 101 inserted into the T-groove 102.

[0020] Further as Figure 4 As shown, it is worth noting that a rubber pad 203 is attached and fixed to the side of the limiting plate 201 near the fixing plate 3. In actual operation, the rubber pad 203 provides a certain static friction between the limiting plate 201 and the side of the insert 101, thereby improving the stability of the limiting plate 201 in stopping and limiting the insert 101.

[0021] This solution includes the following working process: The transformer component 10 is fitted onto the end of the positioning rod 4. When the transformer component 10 is fitted onto the end of the positioning rod 4, the convex round block 6 on the metal spring plate 5 engages with the positioning groove on the transformer component 10, thereby positioning and locking the transformer component 10. This aligns the pin 9 with the U-shaped groove. The U-shaped groove on the downward-moving pressure block contacts the pin 9 of the transformer component 10, which is wrapped with copper wire 11, and presses it down, thereby... The T-groove applies a buffer-type downward pressure to the copper wire 11 on the pin 9, thereby pressing the copper wire 11 to the bottom of the pin 9. When the metal spring plate 5 is used for a long time and becomes excessively worn and needs to be replaced, the insert 101 is pulled outward by pulling the insert 101 out of the T-groove 102, so that the metal spring plate 5 can be quickly removed and replaced. When the insert 101 is inserted into the T-groove 102, the limiting plate 201 is rotated to stop and limit the end of the insert 101.

[0022] Further as Figure 5As shown, it is worth noting that the end of the metal spring plate 5 is provided with a guide ramp 7. In actual operation, the guide ramp 7 allows the convex round block 6 on the metal spring plate 5 to automatically engage in the positioning groove on the transformer component 10, further improving the convenience of positioning the transformer component 10.

[0023] Further as Figure 3 As shown, it is worth noting that the end of the positioning rod 4 is provided with a pointed tip 8.

[0024] In summary: When the transformer component 10 is fitted onto the end of the positioning rod 4, the U-shaped groove on the downward-moving pressure block contacts the pin 9 on the transformer component 10 where the copper wire 11 is wound, and presses it down. This U-shaped groove provides a buffered downward pressure on the copper wire 11 on the pin 9, pressing it to the bottom of the pin 9. When the transformer component 10 is fitted onto the end of the positioning rod 4, the convex round block 6 on the metal spring plate 5 engages with the positioning groove on the transformer component 10, thus locking the transformer component 10 in place. This aligns the pin 9 with the U-shaped groove, effectively improving the operation of the pressure foot. To improve accuracy and overall effect of presser foot processing, when the metal spring plate 5 is excessively worn and needs to be replaced, the metal spring plate 5 can be quickly removed and replaced through the set clamping component 1, which is convenient for maintenance. When the insert 101 is inserted into the T-slot 102, the limiting plate 201 is rotated to stop and limit the end of the insert 101, thereby improving the stability of the insert 101 in the T-slot 102. The rubber pad 203 provides a certain static friction between the limiting plate 201 and the side of the insert 101, improving the stability of the limiting plate 201 in stopping and limiting the insert 101.

Claims

1. A pin positioning device for a miniature transformer, comprising a positioning rod (4), characterized in that, The end of the positioning rod (4) is fitted with a transformer component (10). A fixing plate (3) located on one side of the transformer component (10) is fixed on the side of the positioning rod (4). A positioning groove is provided on the side of the transformer component (10). A plurality of symmetrically distributed metal spring plates (5) are provided on the fixing plate (3). A convex round block (6) that fits the positioning groove is fixed on the side of the metal spring plate (5). A clamping assembly (1) is provided between the metal spring plate (5) and the fixing plate (3). A limiting assembly (2) that limits the clamping assembly (1) is provided on the fixing plate (3).

2. The miniature transformer pin positioning device according to claim 1, characterized in that, The mounting assembly (1) includes a T-shaped groove (102) opened in the fixing plate (3), and an insert (101) is slidably inserted in the T-shaped groove (102). The metal spring plate (5) is fixed on the side of the insert (101).

3. The miniature transformer pin positioning device according to claim 2, characterized in that, The limiting component (2) includes a protrusion (202) fixed on the side of the fixing plate (3), and a limiting plate (201) is rotatably connected to the protrusion (202) to stop and limit one end of the insert (101) inserted into the T-groove (102).

4. The miniature transformer pin positioning device according to claim 3, characterized in that, A rubber pad (203) is attached to and fixed on the side of the limiting plate (201) near the fixing plate (3).

5. The pin positioning device for a miniature transformer according to claim 1, characterized in that, The end of the metal spring plate (5) is provided with a guide ramp (7).

6. The miniature transformer pin positioning device according to claim 1, characterized in that, The end of the positioning rod (4) is provided with a tip (8).

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