Electric bicycle fork mounting plate precision stamping system

CN224614872UActive Publication Date: 2026-08-11WUXI YINENG HARDWARE PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-02
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0002]电动自行车的平叉安装板通常为金属冲压件,在进行加工时,冲压成型后,还需进行多处冲孔,通常两道工序分开进行,由两名工人分别在成型冲压机和冲孔冲压机操作完成,且均需要工人手动上下料,人力需求大、工人劳动强度大,且工作效率较低

Benefits of technology

[0011]有益效果:本实用新型的电动自行车平叉安装板精密冲压系统,通过一个能够水平旋转、竖向升降且纵向翻转的电磁铁与另一个能够水旋转和竖向升降的电磁铁配合,实现从成型机构下料至冲孔机构上料的精密动作配合,大大降低了工人的劳动强度,且相较于原先仅需一个工人操作即可,也无需在相对冲孔机构上料时进行手动调试料片位置,大大提高整体冲压加工效率。

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Abstract

This utility model discloses a precision stamping system for an electric bicycle fork mounting plate, including a forming mechanism and a punching mechanism. Each mechanism has a rotating component and a lifting mechanism for driving the rotating component to rise and fall on adjacent sides. A lateral extension is provided on one side of the rotating component, and an electromagnet is fixedly connected to the end of the lateral extension away from the rotating component. The two rotating components can rotate until the two electromagnets are vertically aligned. The lateral extension on the forming mechanism side is also equipped with a rotary drive device that drives the electromagnet on it to flip up and down, so that when the two electromagnets are vertically aligned, they flip so that the magnetic surfaces of the two electromagnets face each other. This utility model allows a single person to continuously complete the stamping and punching processes with low labor intensity, effectively improving processing efficiency.
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Description

Technical Field

[0001] This utility model relates to the technical field of electric bicycle parts production equipment. Background Technology

[0002] The flat fork mounting plate of electric bicycles is usually made of metal stamping. During processing, after stamping, multiple punching is required. Usually, the two processes are carried out separately by two workers operating the forming stamping machine and the punching stamping machine respectively. Both processes require manual loading and unloading by workers, which requires a large amount of manpower, high labor intensity, and low work efficiency. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a precision stamping system for electric bicycle flat fork mounting plates, which can be completed by a single person with low labor intensity in two continuous processes of stamping and punching, effectively improving processing efficiency.

[0004] Technical solution: To achieve the above objectives, the electric bicycle flat fork mounting plate precision stamping system of this utility model includes a forming mechanism and a punching mechanism. A rotating component and a lifting mechanism for driving the rotating component to rise and fall are provided on the side of the two components. A lateral extension component is provided on one side of the rotating component. An electromagnet is fixedly connected to the end of the lateral extension component away from the rotating component. The two rotating components can rotate until the two electromagnets are aligned vertically.

[0005] The transverse extension on the forming mechanism side is also provided with a rotary drive device that drives the electromagnets on it to flip up and down, so that when the two electromagnets are aligned vertically, they can flip so that the magnetic attraction surfaces of the two electromagnets face each other vertically.

[0006] Furthermore, the rotating shaft of the rotary drive device is connected to a corresponding electromagnet via a crossbar. The crossbar is also equipped with a touch switch to control the electromagnet's on / off state, and the electromagnet and the touch switch are fixedly connected to the same side of the crossbar. The lower mold of the molding mechanism is equipped with a trigger. When the electromagnet rotates to be vertically aligned with the lower mold of the molding mechanism, the rotary drive device descends, and during the descent, it causes the touch switch to strike the trigger.

[0007] Furthermore, the lateral extension on the forming mechanism side is a short rotating arm, and an inductive switch for controlling the rotation of the rotary drive device is provided on the bottom side of the short rotating arm. Inductive triggers are provided on both sides of the rotating part where the short rotating arm is located. During the process of the two electromagnets rotating towards or away from each other, the inductive switch sweeps across the two inductive triggers respectively.

[0008] Furthermore, the lateral extension on the punching mechanism side is a long rotating arm. The end of the long rotating arm is equipped with a touch switch that controls the on and off of its own electromagnet. When the magnetic surfaces of the two electromagnets are facing each other, the two touch switches are facing each other. During the descent of the long rotating arm, it drives the touch switch on it to collide with the touch switch on the crossbar. When the two touch switches collide, the two electromagnets clamp the stamped sheet from top to bottom.

[0009] Furthermore, the lower die of the punching mechanism is equipped with a trigger. When the electromagnet on the long rotating arm rotates to be aligned vertically with the lower die of the punching mechanism, the long rotating arm descends, and during the descent, the contact switch at its end strikes the trigger.

[0010] Furthermore, a feeding storage rack is provided on one side of the rotating component next to the forming mechanism, and a discharging storage rack is provided on one side of the rotating component next to the punching mechanism.

[0011] Beneficial effects: The precision stamping system for the electric bicycle flat fork mounting plate of this utility model uses an electromagnet that can rotate horizontally, lift vertically, and flip longitudinally to cooperate with another electromagnet that can rotate horizontally and lift vertically. This achieves precise action coordination from unloading from the forming mechanism to loading from the punching mechanism, which greatly reduces the labor intensity of workers. Compared with the original system that only required one worker to operate, it also eliminates the need to manually adjust the position of the sheet metal when loading from the punching mechanism, thus greatly improving the overall stamping efficiency. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of a precision stamping system for an electric bicycle flat fork mounting plate according to the present invention;

[0013] Figure 2 This is a schematic diagram of the structure of two electromagnets when they are connected in one embodiment of this utility model. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] As attached Figure 1-2The precision stamping system for the electric bicycle flat fork mounting plate includes a forming mechanism 1 and a punching mechanism 2. A rotating component 3 and a lifting mechanism 4 for driving the rotating component 3 to rise and fall are provided on adjacent sides of both. A lateral extension is provided on one side of the rotating component 3, and an electromagnet 5 is fixedly connected to the end of the lateral extension away from the rotating component 3. The two rotating components 3 can rotate until the two electromagnets 5 are vertically aligned. The lateral extension on the forming mechanism 1 side is also provided with a rotary drive device 6 that drives the electromagnets 5 on it to flip vertically, so that when the two electromagnets 5 are vertically aligned, they flip so that the magnetic surfaces of the two electromagnets 5 face each other vertically. Workers simply feed the pre-cut sheet material to the forming mechanism. After stamping, the electromagnet 5 on the forming mechanism 1 picks up the formed sheet, and the corresponding lifting mechanism 4 drives the corresponding rotating component 3 to rise, lifting the sheet away from the lower die of the forming mold to a certain height. Then, the rotating component 3 rotates, causing the sheet to move towards the punching mechanism 2. During the rotation, the rotary drive device 6 controls the electromagnet to flip until the sheet is on the upper side. At the same time, the rotating component 3 on the punching mechanism 2 also drives its electromagnet 5 to rotate to meet the electromagnet that has attracted the sheet. When the two electromagnets are brought close together and aligned vertically, the formed sheet is positioned between them. By moving the upper electromagnet 5 down to contact the sheet and energizing it while de-energizing the lower electromagnet, the sheet is attracted to the upper electromagnet. The rotating component 3 on the punching mechanism 2 then aligns the sheet with the lower die of the punching mold during rotation. The feeding action relative to the punching mechanism 2 is automatically completed by moving the sheet into position and de-energizing the electromagnet. After punching, the worker can remove the flat fork mounting plate. The worker only needs to feed the sheet into the forming mechanism and unload it into the punching mechanism. The intermediate process is completed by two magnetic attraction mechanisms, reducing the number of workers required. Furthermore, the transfer of the semi-finished sheet from the forming mechanism 1 to the punching mechanism 2 is accomplished by the fixed-point exchange attraction of the two electromagnets, making the positioning of the semi-finished sheet relative to the lower punching die more precise and faster, eliminating the need for manual adjustment, ensuring forming quality, and effectively improving work efficiency.

[0016] The rotation shaft of the rotary drive device 6 is connected to the corresponding electromagnet 5 via a crossbar 61. The crossbar is also equipped with a touch switch 51 that controls the on / off state of the electromagnet 5, and the electromagnet 5 and the touch switch 51 are fixedly connected to the same side of the crossbar 61. The lower mold of the molding mechanism 1 is equipped with a trigger. When the electromagnet 5 rotates to be vertically aligned with the lower mold of the molding mechanism 1, the rotary drive device 6 descends, and during the descent, it drives the touch switch to strike the trigger. Each touch of the contact switch toggles the on / off state of the electromagnet, while the rotating component 3 is controlled by the controller to perform regular fixed-point rotation. For example, after the forming mechanism completes one stamping, the rotating component on its side drives the electromagnet, which is in a de-energized state, to rotate to the upper side of the semi-finished material sheet. By moving down and approaching the material sheet, and when it approaches the lower mold, the collision between the trigger and the contact switch energizes the electromagnet. At this time, the electromagnet has been pressed against the surface of the material sheet, achieving a stable fixed-point adsorption and completing the material picking operation. Then, through a series of lifting, horizontal rotation, and vertical flipping, the handover operation with the electromagnet on the other side is completed.

[0017] The lateral extension on the molding mechanism 1 side is a short rotating arm 11. An inductive switch for controlling the rotation of the rotary drive device 6 is provided on the bottom side of the short rotating arm 11. Inductive trigger elements are provided on both sides of the rotating component 3 where the short rotating arm 11 is located. During the relative rotation of the two electromagnets 5, as they approach or move away from each other, the inductive switch sweeps across the two inductive trigger elements. The inductive switch and inductive trigger elements are photoelectric switches. The transmitter and receiver are installed as the inductive switch and inductive trigger elements, respectively. When the transmitter sweeps across a receiver, it controls the electromagnet to rotate 180° longitudinally, so that when corresponding to the lower mold, the magnetic attraction surface faces down, and when intersecting with another electromagnet, the magnetic attraction surface faces up.

[0018] The transverse extension on side 2 of the punching mechanism is a long rotating arm 21. The end of the long rotating arm 21 is equipped with a contact switch 51 that controls the energization of its own electromagnet 5. When the magnetic surfaces of the two electromagnets 5 are facing each other, the two contact switches 51 are also facing each other. During the descent of the long rotating arm 21, it causes the contact switch 51 on it to collide with the contact switch 51 on the crossbar. When the two contact switches 51 collide, the two electromagnets 5 clamp the stamped sheet from top to bottom. Since the electromagnet on side 1 of the forming mechanism and its contact switch are located on the same side of the crossbar 61, when the corresponding electromagnet flips to face upwards, its contact switch also faces upwards. Therefore, when the electromagnet on the other side moves down to contact the semi-finished sheet, the two contact switches collide, causing the lower electromagnet to de-energize and the upper electromagnet to energize. Furthermore, the sheet is first clamped by the two electromagnets before being exchanged and attracted, ensuring that the sheet will not fall off and the attraction position will not shift during this process, thus guaranteeing accurate positioning when feeding material to the punching mechanism.

[0019] The lower die of the punching mechanism 2 is equipped with a trigger. When the electromagnet 5 on the long rotating arm 21 rotates to align with the lower die of the punching mechanism 2, the long rotating arm 21 descends, and during the descent, the contact switch 51 at its end strikes the trigger. Similarly to the forming mechanism 1, after the semi-finished material sheet is moved to align with the lower die, it is gradually lowered until it matches the lower die. When it is in position, the contact switch 51 strikes the trigger on the lower die, de-energizing the electromagnet and completing the loading. After the electromagnet is removed by the rotating component, the punching operation can begin.

[0020] A loading and unloading storage rack 7 is provided on one side of the rotating component 3 beside the forming mechanism 1, and a unloading storage rack 8 is provided on one side of the rotating component 3 beside the punching mechanism 2. By setting the loading and unloading storage racks on the horizontal rotation trajectories of the two electromagnets respectively, the loading action relative to the forming mechanism 1 and the unloading action relative to the punching mechanism can be further replaced by workers, further reducing the labor intensity of workers. The suction and release actions of the electromagnets on the loading and unloading storage racks can also be triggered by triggers, and the triggers on the loading and unloading storage racks can be set to automatically rise and fall with the height of the material pile, so that the electromagnets are triggered to switch on and off just when they are pressed against the upper part of the material pile, thereby achieving stable fixed-point suction of material pieces and stable fixed-point unloading. The loading and unloading storage racks can be set side by side on the same side for easy operation by workers.

[0021] The above are merely preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A precision stamping system for electric bicycle flat fork mounting plate, characterized in that: It includes a forming mechanism (1) and a punching mechanism (2). Both of them are provided with a rotating part (3) and a lifting mechanism (4) for driving the rotating part (3) to rise and fall. A transverse extension is provided on one side of the rotating part (3). An electromagnet (5) is fixedly connected to the end of the transverse extension away from the rotating part (3). The two rotating parts (3) can rotate until the two electromagnets (5) are aligned vertically. The transverse extension on the side of the forming mechanism (1) is also provided with a rotary drive device (6) that drives the electromagnet (5) on it to flip up and down. When the two electromagnets (5) are aligned up and down, they can flip so that the magnetic attraction surfaces of the two electromagnets (5) are facing each other up and down.

2. The precision stamping system for the electric bicycle fork mounting plate according to claim 1, characterized in that: The rotation shaft of the rotary drive device (6) is connected to the corresponding electromagnet (5) via a crossbar (61). The crossbar is also equipped with a touch switch (51) to control the electromagnet (5) to turn on and off. The electromagnet (5) and the touch switch (51) are fixedly connected to the same side of the crossbar (61). The lower mold of the molding mechanism (1) is equipped with a trigger. When the electromagnet (5) rotates to be aligned with the lower mold of the molding mechanism (1), the rotary drive device (6) descends. During the descent, the touch switch is driven to strike the trigger.

3. The precision stamping system for the electric bicycle fork mounting plate according to claim 2, characterized in that: The lateral extension on the side of the forming mechanism (1) is a short rotating arm (11). The bottom side of the short rotating arm (11) is provided with an induction switch to control the rotation of the rotating drive device (6). Induction triggers are provided on both sides of the rotating part (3) where the short rotating arm (11) is located. During the process of the two electromagnets (5) rotating towards or away from each other, the induction switch sweeps across the two induction triggers respectively.

4. The precision stamping system for the electric bicycle fork mounting plate according to claim 3, characterized in that: The transverse extension on the side of the punching mechanism (2) is a long rotating arm (21). The end of the long rotating arm (21) is provided with a touch switch (51) that controls the on and off of its own electromagnet (5). When the magnetic surfaces of the two electromagnets (5) are facing each other, the two touch switches (51) are facing each other. During the descent of the long rotating arm (21), it drives the touch switch (51) on it to collide with the touch switch (51) on the crossbar. When the two touch switches (51) collide, the two electromagnets (5) clamp the stamped sheet from top to bottom.

5. The precision stamping system for the electric bicycle fork mounting plate according to claim 4, characterized in that: The lower die of the punching mechanism (2) is equipped with a trigger. When the electromagnet (5) on the long rotating arm (21) rotates to be aligned with the lower die of the punching mechanism (2), the long rotating arm (21) descends, and during the descent, the touch switch (51) at its end strikes the trigger.

6. The precision stamping system for the electric bicycle fork mounting plate according to claim 1, characterized in that: A feeding storage rack (7) is provided on one side of the rotating part (3) next to the forming mechanism (1), and a discharging storage rack (8) is provided on one side of the rotating part (3) next to the punching mechanism (2).