A precise bending device for fuse body pins

CN224724891UActive Publication Date: 2026-09-08YOURONG XINYUAN ELECTRIC (KUNSHAN) CO LTD
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Patent Information

Application Number
CN202521752975.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-18
Publication Date
2026-09-08
Estimated Expiration
2035-08-18

AI Technical Summary

Technical Problem

[0003]目前使用的大部分弯折装置无法精准的折弯引脚,在使用过程中,如果无法精准的折弯引脚,会导致引脚折弯不精准,使其有一定偏差,使引脚与电路板或其他连接部件接触不良,增加接触电阻,使电路在工作时产生额外的热量,影响整个电路的稳定性与可靠性,甚至可能引发电路故障的情况出现,让该弯折装置的折弯精准度较差,且不便于根据不同尺寸的引脚来调节折弯杆与夹板的位置,以及根据折弯需求来更换合适的固定轴,在使用过程中,如果不便于根据不同尺寸的引脚来调节折弯杆与夹板的位置,以及根据折弯需求来更换合适的固定轴,会导致不同尺寸大小的引脚无法通过该弯折装置来进行折弯,且无法改变引脚的折弯角度,无法满足一些不同大小尺寸的引脚与不同生产工艺的需求的情况出现,让该弯折装置的适用范围较窄

Benefits of technology

[0014] 1. This utility model, through the setting of a precise rotation mechanism, can achieve the function of accurately rotating the turntable to bend the pins. During use, the starting motor drives the small gear to rotate, the small gear drives the large gear to rotate, and the large gear drives the turntable to rotate precisely. This can avoid the situation where the pins are not bent accurately, resulting in inaccurate bending of the pins, causing certain deviations, poor contact between the pins and the circuit board or other connecting parts, increasing contact resistance, generating additional heat during circuit operation, affecting the stability and reliability of the entire circuit, and even possibly causing circuit failure. This ensures the accuracy of the device.

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Abstract

The utility model discloses a kind of precision bending device of fuse body pin, it is related to fuse body pin bending technical field, including workbench, the inside of workbench is provided with precision rotating mechanism, precision rotating mechanism includes bed, the inside of workbench is provided with bed.The utility model through the setting of precision rotating mechanism, can reach the role of accurate rotating turntable to bend pin, in use process, by starting motor driving pinion rotation, pinion drives gear rotation, gear drives turntable accurate rotation, can avoid because unable accurate bending pin, leading to pin bending inaccuracy, make it have certain deviation, make pin and circuit board or other connecting component contact badly, increase contact resistance, make circuit produce additional heat when working, affect the stability and reliability of entire circuit, even possibly cause circuit failure situation to appear, ensure the accuracy of the device.
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Description

Technical Field

[0001] This utility model relates to the field of fuse lead bending technology, specifically a device for precise bending of fuse leads. Background Technology

[0002] Fuses play a crucial role in overload protection in various circuits. When the current in a circuit abnormally increases, the fuse quickly melts, cutting off the current and protecting other components in the circuit from damage. As electronic devices continue to evolve towards miniaturization and higher precision, the specifications and shapes of fuses are becoming increasingly diverse to adapt to the spatial layout and installation requirements of different devices. In the fuse manufacturing process, lead bending is a critical step, requiring a precise fuse lead bending device.

[0003] Most bending devices currently in use cannot accurately bend leads. During use, this inaccuracy leads to deviations in lead bending, resulting in poor contact between the lead and the circuit board or other connecting components. This increases contact resistance, generates extra heat during circuit operation, affects the stability and reliability of the entire circuit, and may even cause circuit failures. Furthermore, these bending devices have poor bending accuracy and are not convenient for adjusting the position of the bending rod and clamping plate according to different lead sizes, nor for changing the appropriate fixing shaft according to bending requirements. This limitation prevents the bending of leads of different sizes from being bent using these devices, and also prevents the adjustment of the bending angle. Consequently, these devices cannot meet the needs of leads of different sizes and different manufacturing processes, thus limiting their applicability. Utility Model Content

[0004] The purpose of this invention is to provide a device for precisely bending fuse leads to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for precisely bending fuse leads, comprising a worktable, a precision rotating mechanism inside the worktable, the precision rotating mechanism comprising a base, a motor inside the worktable, an output shaft of the motor connected to a motor shaft via a coupling, a small gear at the top of the motor shaft, a support plate inside the worktable, a rotating shaft connected to the top of the support plate by a bearing, a large gear on the outer wall of the rotating shaft, the large gear meshing with the small gear, the outer wall of the rotating shaft penetrating the interior of the worktable, and a turntable at the top of the rotating shaft.

[0006] As a preferred technical solution, the workbench has an opening inside, the shape and size of which match the shape and size of the rotating shaft, and the workbench is connected to the rotating shaft through the opening.

[0007] As a preferred technical solution, the top of the turntable is provided with an adjustment and replacement mechanism, which includes a threaded rod, and the top of the turntable is provided with a threaded rod.

[0008] As a preferred technical solution, the outer wall of the threaded rod is movably connected to a fixed shaft, and the fixed shaft has a through hole inside.

[0009] As a preferred technical solution, the outer wall of the threaded rod is threaded with a nut, and the top of the workbench is fixed with a fixing plate.

[0010] As a preferred technical solution, a first electric push rod is provided on one side of the fixing plate, and a clamping plate is provided at one end of the first electric push rod.

[0011] As a preferred technical solution, the outer wall of the turntable is provided with a support frame, and a second electric push rod is provided on one side of the support frame.

[0012] As a preferred technical solution, one end of the second electric push rod is provided with a bending rod, and the bending rod is circular in shape.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the setting of a precise rotation mechanism, can achieve the function of accurately rotating the turntable to bend the pins. During use, the starting motor drives the small gear to rotate, the small gear drives the large gear to rotate, and the large gear drives the turntable to rotate precisely. This can avoid the situation where the pins are not bent accurately, resulting in inaccurate bending of the pins, causing certain deviations, poor contact between the pins and the circuit board or other connecting parts, increasing contact resistance, generating additional heat during circuit operation, affecting the stability and reliability of the entire circuit, and even possibly causing circuit failure. This ensures the accuracy of the device.

[0015] 2. This utility model, through the adjustment and replacement mechanism, facilitates the adjustment of the bending rod and clamping plate positions according to different pin sizes, and allows for the replacement of a suitable fixed shaft according to bending requirements. During use, the first and second electric push rods are activated to move the clamping plate and bending rod to the appropriate position. The threaded rod and nut are then used to replace the fixed shaft with a suitable radius. This avoids situations where pins of different sizes cannot be bent using the bending device due to the inconvenience of adjusting the bending rod and clamping plate positions according to different pin sizes, or replacing the fixed shaft according to bending requirements. It also prevents situations where the bending angle of the pins cannot be changed, thus failing to meet the needs of different pin sizes and different production processes, thereby ensuring the applicability of the device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present utility model;

[0017] Figure 2 This is a sectional view of the internal structure of the workbench of this utility model;

[0018] Figure 3 This is a schematic diagram of the precision rotation mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the adjustment and replacement structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the second electric push rod and the bending rod of this utility model.

[0021] The components include: 1. Workbench; 2. Precision rotating mechanism; 201. Machine base; 202. Motor; 203. Motor shaft; 204. Pinion; 205. Support plate; 206. Rotating shaft; 207. Large gear; 208. Turntable; 3. Adjustment and replacement mechanism; 301. Threaded rod; 302. Fixed shaft; 303. Through hole; 304. Nut; 305. Fixed plate; 306. First electric push rod; 307. Clamping plate; 308. Support frame; 309. Second electric push rod; 310. Bending rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Figure 1 and Figure 2 As shown, the present invention provides the following technical solution, including a workbench 1, a precision rotation mechanism 2 is provided inside the workbench 1, and an adjustment and replacement mechanism 3 is provided on the top of the turntable 208.

[0024] Specifically: When the bending device is needed to bend the fuse lead, the clamping plate 307 and bending rod 310 need to be adjusted according to the size of the lead and the required bending angle, and the fixed shaft 302 needs to be replaced with a suitable size. The adjustment and replacement mechanism 3 is used to adjust the clamping plate 307 and bending rod 310 according to the size of the lead and the required bending angle, and replace the fixed shaft 302 with a suitable size. After adjustment and replacement, the lead can be bent. The lead is placed on the top of the turntable 208, and the clamping plate 307 fixes the lead. Then the turntable 208 needs to be rotated to accurately bend the lead. The precise rotation mechanism 2 is used to accurately bend the lead, thus completing the work.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, a precision rotating mechanism 2 is installed inside the worktable 1. The precision rotating mechanism 2 includes a base 201. The base 201 is installed inside the worktable 1. A motor 202 is installed inside the base 201. The output shaft of the motor 202 is connected to a motor shaft 203 via a coupling. A small gear 204 is installed at the top of the motor shaft 203. A support plate 205 is installed inside the worktable 1. A rotating shaft 206 is connected to the top of the support plate 205 via a bearing. A large gear 207 is installed on the outer wall of the rotating shaft 206. The large gear 207 meshes with the small gear 204. The outer wall of the rotating shaft 206 is connected through the interior of the worktable 1. A turntable 208 is installed at the top of the rotating shaft 206. An opening is provided inside the worktable 1. The shape and size of the opening match the shape and size of the rotating shaft 206. The worktable 1 is connected through the opening to the rotating shaft 206.

[0026] The process involves the following steps: After adjustment and replacement, the pin can be bent. The pin is placed on top of the turntable 208, and the clamp 307 fixes the pin in place. The turntable 208 is then rotated to precisely bend the pin. The motor 202 is started, causing the motor shaft 203 to rotate. The motor shaft 203 drives the pinion 204 to rotate, which in turn drives the gear 207 to rotate. The gear 207 drives the rotating shaft 206 to rotate, which in turn drives the turntable 208 to rotate precisely. The rotation of the bending rod 310 driven by the turntable 208 bends the pin, thus completing the precise rotation process.

[0027] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the top of the turntable 208 is provided with an adjustment and replacement mechanism 3, which includes a threaded rod 301. The top of the turntable 208 is provided with a threaded rod 301, and a fixed shaft 302 is movably connected to the outer wall of the threaded rod 301. A through hole 303 is opened inside the fixed shaft 302. A nut 304 is threadedly connected to the outer wall of the threaded rod 301. A fixed plate 305 is fixed to the top of the worktable 1. A first electric push rod 306 is provided on one side of the fixed plate 305. A clamping plate 307 is provided at one end of the first electric push rod 306. A support frame 308 is provided on the outer wall of the turntable 208. A second electric push rod 309 is provided on one side of the support frame 308. A bending rod 310 is provided at one end of the second electric push rod 309. The bending rod 310 is circular in shape.

[0028] Specifically: When the bending device is needed to bend the fuse lead, firstly, the clamping plate 307 and bending rod 310 need to be adjusted according to the size of the lead and the required bending angle, and the fixed shaft 302 of appropriate size needs to be replaced. At this time, the nut 304 is rotated out from the outer wall of the threaded rod 301, and then the fixed shaft 302 is pulled out from the outer wall of the threaded rod 301. Then, the through hole 303 opened in the fixed shaft 302 of appropriate size is inserted into the outer wall of the threaded rod 301, and then the nut 304 is rotated and inserted into the threaded rod 301. 1. Tighten the nut 304 on the outer wall. Then, start the first electric push rod 306 to extend or shorten it. The first electric push rod 306 moves the clamp 307 to the appropriate position. Then, start the second electric push rod 309 to extend or shorten it. The second electric push rod 309 moves the bending rod 310 to the appropriate position, thus completing the adjustment and replacement work.

[0029] The working principle of this utility model is as follows: When the bending device is needed to bend the fuse lead, firstly, the clamping plate 307 and bending rod 310 need to be adjusted according to the size of the lead and the required bending angle, and the fixed shaft 302 of a suitable size needs to be replaced. At this time, the nut 304 is rotated out from the outer wall of the threaded rod 301, and then the fixed shaft 302 is pulled out from the outer wall of the threaded rod 301. Then, the through hole 303 opened in the fixed shaft 302 of a suitable size is inserted into the outer wall of the threaded rod 301. Then, the nut 304 is rotated and inserted into the outer wall of the threaded rod 301 and tightened. Then, the first electric push rod 306 is started, causing the first electric push rod 306 to begin to extend or shorten. The first electric push rod 306 drives the clamping plate 307 to move to the appropriate position. Then, the second electric push rod 309 is started, causing the second electric push rod 309 to begin to extend. The second electric push rod 309 extends or shortens, and drives the bending rod 310 to move. The bending rod 310 is moved to the appropriate position to complete the adjustment and replacement work. After adjustment and replacement, the pin can be bent. The pin is placed on top of the turntable 208, and the clamp 307 fixes the pin. Then, the turntable 208 needs to be rotated to bend the pin precisely. At this time, the motor 202 is started, which drives the motor shaft 203 to rotate. The motor shaft 203 drives the pinion 204 to rotate, which drives the gear 207 to rotate. The gear 207 drives the shaft 206 to rotate, which drives the turntable 208 to rotate precisely. The rotation of the bending rod 310 driven by the turntable 208 bends the pin, thus completing the precise rotation work.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for precisely bending fuse leads, comprising a worktable (1), characterized in that: The workbench (1) is equipped with a precision rotating mechanism (2). The precision rotating mechanism (2) includes a base (201). The workbench (1) is equipped with a base (201). The base (201) is equipped with a motor (202). The output shaft of the motor (202) is connected to a motor shaft (203) via a coupling. A small gear (204) is provided at the top of the motor shaft (203). The workbench (1) is equipped with a support plate (205). A rotating shaft (206) is connected to the top of the support plate (205) via a bearing. A large gear (207) is provided on the outer wall of the rotating shaft (206). The large gear (207) meshes with the small gear (204). The outer wall of the rotating shaft (206) is connected through the interior of the workbench (1). A turntable (208) is provided at the top of the rotating shaft (206).

2. The device for precisely bending fuse leads according to claim 1, characterized in that: The workbench (1) has an opening inside, the shape and size of which match the shape and size of the rotating shaft (206), and the workbench (1) is connected to the rotating shaft (206) through the opening.

3. The device for precisely bending fuse leads according to claim 1, characterized in that: The top of the turntable (208) is provided with an adjustment and replacement mechanism (3), which includes a threaded rod (301).

4. The device for precisely bending fuse leads according to claim 3, characterized in that: The outer wall of the threaded rod (301) is movably connected to a fixed shaft (302), and the fixed shaft (302) has a through hole (303) inside.

5. The device for precisely bending fuse leads according to claim 4, characterized in that: The outer wall of the threaded rod (301) is threaded with a nut (304), and the top of the workbench (1) is fixed with a fixing plate (305).

6. The device for precisely bending fuse leads according to claim 5, characterized in that: A first electric push rod (306) is provided on one side of the fixed plate (305), and a clamping plate (307) is provided at one end of the first electric push rod (306).

7. The device for precisely bending fuse leads according to claim 6, characterized in that: The outer wall of the turntable (208) is provided with a support frame (308), and a second electric push rod (309) is provided on one side of the support frame (308).

8. The device for precisely bending fuse leads according to claim 7, characterized in that: One end of the second electric push rod (309) is provided with a bending rod (310), and the bending rod (310) is circular in shape.