A press fitting mechanism of a network transformer needle seat

Abstract

The utility model relates to a press -fitting mechanism, concretely relates to a press -fitting mechanism of network transformer needle seat. The press -fitting mechanism is constituted by chuck, centralizer and die holder, and the symmetric setting has centralizer on the chuck, and the die holder is arranged under the chuck, the centralizer is constituted by assembling block, sliding block and centralizing plate, and the centralizing plate is provided with inner layer centralizing groove and outer layer centralizing groove. The press -fitting mechanism can right the pin foot through the centralizing plate, thereby can guarantee that the pin foot can accurately aim at the pinhole, makes the upper needle seat can normally press -fit with the lower needle seat, and because righting and limiting the pin foot simultaneously through the centralizing plate, can effectively improve the alignment efficiency of the pin foot in the press -fitting process, and then effectively improve the press -fitting efficiency, satisfy the enterprise scale production demand. Through the machine instead of manual work can effectively reduce the labor intensity, improves the visual fatigue caused by manual continuous alignment pin foot. Solve the low production efficiency of the existing press -fitting mode, and the problem that it is difficult to satisfy the enterprise scale production demand.

Description

Technical Field

[0001] This utility model relates to a pressing mechanism, specifically a pressing mechanism for a network transformer pin seat. Background Technology

[0002] Network transformers, as core passive components in data communication equipment, are widely used in products such as Ethernet switches, routers, and network interface cards. They primarily perform critical functions such as signal coupling, impedance matching, and electromagnetic interference suppression, directly impacting the stability of communication links and data transmission quality. The pin header and top cover, as core structural components of the network transformer, have assembly precision that directly determines the product's electrical performance and lifespan. Among these, the assembly quality of the pin header is of paramount importance in the entire assembly process.

[0003] Specifically, the pin header of the network transformer adopts a split design, consisting of a lower pin header and an upper pin header. The core challenge in assembling the upper and lower pin headers lies in the precise alignment of the pins and pin holes. Because the pin diameter is only 0.3-0.5mm, it is a delicate and precise structure. During manual handling or initial placement, the upper pin header is prone to slight tilting or displacement, causing multiple sets of pins to fail to maintain coaxial alignment with their corresponding pin holes simultaneously. More importantly, the pins themselves have a certain degree of elastic deformation capability; even slight external forces can cause initial bending, further increasing the difficulty of alignment.

[0004] When a pin is not accurately inserted into its hole and becomes misaligned, subsequent pressing processes will directly cause serious problems. When a pin is misaligned, the edge of the hole in the lower pin holder will exert a lateral shear force on the pin. As the pressing stroke progresses, the pin will be squeezed, bent, or even broken. To avoid these problems, most manufacturers still rely on traditional manual operation to complete pin holder pressing. The specific process is as follows: the operator holds the upper pin holder and visually adjusts the posture of each group of pins one by one, straightening the misaligned pins and aligning them with the holes in the lower pin holder. After confirming that all pins are initially inserted into their holes, the assembly is placed into the pressing tool to complete the final pressing. This operation method has significant drawbacks: on the one hand, the accuracy of manual alignment is highly dependent on the operator's experience and sense of responsibility, and long-term operation can easily lead to alignment errors due to visual fatigue; on the other hand, the pressing time for a single product is about 15-20 seconds, resulting in low production efficiency. The traditional manual pressing mode can no longer meet the needs of large-scale production and has become a bottleneck restricting the improvement of enterprise capacity. Therefore, a pressing mechanism for the pin holder of a network transformer is designed to solve the above problems. Summary of the Invention

[0005] The purpose of this utility model is to provide a pressing mechanism for network transformer pin holders that can balance production efficiency and yield, and effectively improve production capacity.

[0006] The technical solution of this utility model is: A pressing mechanism for a network transformer pin holder comprises a chuck, a straightener, and a mold base. The mechanism is characterized by: straighteners symmetrically arranged on the chuck, and a mold base positioned below the chuck; each straightener comprises an assembly block, a slider, and a straightening plate; a slider is movably mounted on the bottom of the assembly block via a slide rail; a positioning groove is provided on the slider; a straightening plate is fixedly mounted in the positioning groove by fixing bolts; the straightening plate has multiple sets of inner straightening grooves for straightening inner pins and outer straightening grooves for straightening outer pins; the assembly block is fixedly connected to the chuck.

[0007] The slider is provided with a reset hole, and a reset wheel is movably installed in the reset hole on one side of the chuck via a short shaft.

[0008] The assembly block is equipped with a reset cylinder, and the piston rod end of the reset cylinder extends into the reset hole and is slidably connected to the reset wheel.

[0009] The mold base is provided with a workpiece limiting groove, and pin limiting grooves are provided on both sides of the bottom of the workpiece limiting groove; a guide slope is provided on the mold base outside the pin limiting groove.

[0010] The slider is equipped with a friction-reducing wheel at its bottom, and the slider is slidably connected to the guide slope through the friction-reducing wheel.

[0011] The beneficial effects of this utility model are as follows: The pressing mechanism of this network transformer pin holder uses a straightening plate to straighten the pins, ensuring accurate alignment of the pins with the pin holes and allowing for proper pressing of the upper and lower pin holders. Because the straightening plate simultaneously straightens and limits the pins, it effectively improves the alignment efficiency during the pressing process, thereby increasing overall pressing efficiency and meeting the needs of large-scale production. Replacing manual labor with machines effectively reduces labor intensity and alleviates visual fatigue caused by continuous manual pin alignment. This solves the problem of low production efficiency and inability to meet the needs of large-scale production in existing pressing methods. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an exploded network transformer; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a cross-sectional schematic diagram of the centralizer of this utility model; Figure 4 This is a schematic diagram of the slider of this utility model; Figure 5 This is a schematic diagram of the structure of the straightening plate of this utility model; Figure 6 This is a schematic diagram of the structure of the mold base of this utility model.

[0013] In the diagram: 1. Chuck, 2. Mold base, 3. Assembly block, 4. Slider, 5. Straightening plate, 6. Positioning groove, 7. Inner straightening groove, 8. Outer straightening groove, 9. Reset hole, 10. Reset wheel, 11. Reset cylinder, 12. Workpiece limiting groove, 13. Needle foot limiting groove, 14. Guide slope, 15. Friction reducing wheel, 16. Upper needle seat, 17. Lower needle seat, 18. Needle foot, 19. Needle hole. Detailed Implementation

[0014] The pressing mechanism for the pin holder of this network transformer consists of a chuck 1, a straightener, and a mold base 2. Straighteners are symmetrically arranged on the chuck 1 to straighten and limit the pins of the upper pin holder, ensuring accurate alignment of the pins with the pin holes and guaranteeing proper pressing of the upper and lower pin holders. Using straighteners instead of manual pin alignment effectively improves pin alignment efficiency, thereby increasing the pressing efficiency of the network transformer and meeting the needs of large-scale production. The mold base 2 is located below the chuck 1 to support the lower pin holder and fix its position, facilitating alignment of the pins of the upper and lower pin holders with their pin holes.

[0015] The straightener consists of an assembly block 3, a slider 4, and a straightening plate 5. The slider 4 is movably mounted on the bottom of the assembly block 3 via a slide rail. The slider 4 has a positioning groove 6, and the straightening plate 5 is fixedly mounted in the positioning groove 6 by fixing bolts. The straightening plate 5 has multiple sets of inner straightening grooves 7 for straightening inner layer needles and outer straightening grooves 8 for straightening outer layer needles. The assembly block 3 is fixedly connected to the clamp 1. The function of the slider 4 is to push the slider 4 upwards to the needle seat, which in turn pushes the straightening plate 5 upwards to the needle seat. This allows the inner straightening grooves 7 and outer straightening grooves 8 on the straightening plate 5 to straighten and limit the needles, ensuring that the needles are accurately aligned with the needle holes under the straightening effect of the straightening plate 5.

[0016] The slider 4 is provided with a reset hole 9, and a reset wheel 10 is movably mounted in the reset hole 9 on one side of the chuck 1 via a short shaft. The assembly block 3 is provided with a reset cylinder 11, and the piston rod end of the reset cylinder 11 extends into the reset hole 9 and is slidably connected to the reset wheel 10. The function of the reset cylinder 11 is to press the reset wheel 10 by the reset cylinder 11, thereby pressing the slider 4, thus pushing the slider 4 to move towards the chuck 1, thereby pushing the straightening plate 5 to move towards the pin.

[0017] The mold base 2 is provided with a workpiece limiting groove 12 to limit and position the lower needle seat. Needle limiting grooves 13 are provided on both sides of the bottom of the workpiece limiting groove 12 to limit and avoid the needles, further restricting the position of the lower needle seat. A guide ramp 14 is provided on the outside of the needle limiting groove 13 on the mold base 2. A friction-reducing wheel 15 is provided at the bottom of the slider 4, and the slider 4 is slidably connected to the guide ramp 14 via the friction-reducing wheel 15. The function of the guide ramp 14 is to guide the friction-reducing wheel 15 away from the chuck 1 during the downward movement of the straightener, thereby pushing the slider 4 away from the chuck 1, thus pulling the straightening plate 5 out from between the upper and lower needle seats, allowing the upper and lower needle seats to be pressed into place. The function of the anti-friction wheel 15 is to replace the relative sliding between the slider 4 and the guide inclined surface 14 by rolling the anti-friction wheel 15 on the inclined surface, thereby reducing friction and improving the wear resistance of the mold base 2.

[0018] When the pressing mechanism of the network transformer pin holder is working, the lower pin holder is placed in the workpiece limiting groove 12 of the mold base 2. After the lower pin holder is placed in place, the chuck 1 clamps the upper pin holder and transfers the upper pin holder to above the lower pin holder. During the transfer of the upper pin holder, the reset cylinder 11 is activated. The reset cylinder 11 drives the straightening plate 5 to move towards the pin through the reset wheel 10 and the slide 4 in sequence. The straightening plate 5 straightens the pin through the inner straightening groove 7 and the outer straightening groove 8. After the pin is straightened, the chuck 1 moves downward and drives the pin of the upper pin holder to insert into the pin hole. During the insertion of the pin of the upper pin holder into the pin hole, the guide slope 14 of the mold base 2 drives the straightening plate 5 to move away from the pin through the friction reducing wheel 15 and the slide 4 in sequence. The straightening plate 5 is pulled out from between the lower pin holder and the upper pin holder, so that the lower pin holder and the upper pin holder are pressed into place.

[0019] The pressing mechanism of this network transformer pin holder uses a straightening plate 5 to straighten the pins, ensuring accurate alignment of the pins with the pin holes and allowing for proper pressing of the upper and lower pin holders. Because the straightening plate 5 simultaneously straightens and limits the pins, it effectively improves the alignment efficiency during the pressing process, thereby increasing overall pressing efficiency and meeting the needs of large-scale production. Replacing manual labor with machines effectively reduces labor intensity and alleviates visual fatigue caused by continuous manual pin alignment. This solves the problem of low production efficiency and inability to meet the needs of large-scale production in existing pressing methods.

Claims

1. A pressing mechanism for a network transformer pin holder, comprising a clamp (1), a straightener, and a mold base (2), characterized in that: A straightener is symmetrically arranged on the chuck (1), and a mold base (2) is arranged below the chuck (1); the straightener is composed of an assembly block (3), a slider (4) and a straightening plate (5). The bottom of the assembly block (3) is movably mounted with a slider (4) via a slide rail. The slider (4) is provided with a positioning groove (6). The straightening plate (5) is fixedly installed in the positioning groove (6) by a fixing bolt. The straightening plate (5) is provided with multiple sets of inner straightening grooves (7) for straightening the inner layer pins and outer straightening grooves (8) for straightening the outer layer pins at intervals; the assembly block (3) is fixedly connected to the chuck (1).

2. The pressing mechanism for a network transformer pin holder according to claim 1, characterized in that: The slider (4) is provided with a reset hole (9), and a reset wheel (10) is movably installed in the reset hole (9) on one side of the chuck (1) via a short shaft.

3. The pressing mechanism for a network transformer pin holder according to claim 2, characterized in that: The assembly block (3) is provided with a reset cylinder (11), and the piston rod end of the reset cylinder (11) extends into the reset hole (9) and is slidably connected to the reset wheel (10).

4. The pressing mechanism for a network transformer pin holder according to claim 1, characterized in that: The mold base (2) is provided with a workpiece limiting groove (12), and the bottom sides of the workpiece limiting groove (12) are provided with pin limiting grooves (13); the mold base (2) outside the pin limiting groove (13) is provided with a guide slope (14).

5. The pressing mechanism for a network transformer pin holder according to claim 4, characterized in that: The slider (4) is provided with a friction-reducing wheel (15) at the bottom, and the slider (4) is slidably connected to the guide slope (14) through the friction-reducing wheel (15).

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