Diode pin single-blade automatic shearing device
By using a screw and screw block working together and a strong magnet fixing structure, the problems of low cutting accuracy and misalignment of diode pins are solved, achieving precise cutting and fixing, and improving the accuracy of diode pin cutting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DAYA SEMICON
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-28
AI Technical Summary
Existing diode lead cutting devices are not very accurate when cutting diodes of different lengths and fail to effectively fix the diodes, resulting in inaccurate cutting lengths and diode misalignment, which affects cutting accuracy.
The diode pin position is precisely adjusted using an adjustment system that combines a screw and a screw block, and a fixing structure that uses a powerful magnet and a circular cover plate. The diode is then fixed in place by the powerful magnet to prevent it from shifting.
It enables precise adjustment and effective fixing of the diode pin cutting length, improves cutting accuracy, and avoids diode offset during the cutting process.
Smart Images

Figure CN224168627U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diode technology, specifically to an automatic single-blade cutting device for diode leads. Background Technology
[0002] A diode, in electronic components, is a device with two electrodes that allows current to flow in only one direction. Many applications utilize its rectification function. Varactor diodes, on the other hand, are used as electronically adjustable capacitors. The directional current characteristic of most diodes is commonly referred to as their rectification function. The most common function of a diode is to allow current to flow in only one direction, called forward bias, and to block current in the opposite direction, called reverse bias. Therefore, a diode can be thought of as an electronic check valve.
[0003] Cutting diode leads is usually done manually, which is inefficient when cutting multiple diode leads. When using pliers, the leads can easily bounce off, which is dangerous.
[0004] Existing single-blade automatic diode lead cutting devices still have some shortcomings. When cutting diode leads of different lengths, the position of the cutting blade and the lead is usually adjusted to cut leads of different lengths. However, failure to precisely adjust the position of the cutting blade and the lead can result in cutting lengths that are too long or too short, thus affecting the cutting accuracy. In addition, the diode is not fixed during cutting, causing it to shift and resulting in uneven cut surfaces of the diode leads. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this invention provides a single-blade automatic diode pin cutting device, which solves the problems mentioned in the background section.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: it includes a main shearing box, with a first support column and a second support column fixedly connected to the two ends of the bottom of the shearing box, and a screw rotatably connected inside the second support column. The screw has a pitch of one millimeter, and the top end of the screw passes through the second support column and is fixedly connected to a handwheel.
[0009] Optionally, the screw has a threaded connection to a screw block on its surface. One end of the screw block passes through the second support column and is fixedly connected to a shearing table. One end of the shearing table is fixedly connected to a dovetail block. A dovetail groove is formed on the top surface of the first support column. The dovetail block is slidably connected to the dovetail groove. A circular groove is formed on the top surface of the shearing table. A diode is formed on the inner surface of the circular groove.
[0010] Optionally, a dual-axis cylinder is fixedly connected to the middle of one side of the first support column. L-shaped clamps are fixedly connected to both ends of the piston rod of the dual-axis cylinder. A shearing blade is fixedly connected to the inner side of the L-shaped clamps. The blade of the shearing blade is sharp.
[0011] Optionally, a waste box is slidably connected to the center of the bottom of the shearing box, one end of the waste box extends through the shearing box, and an observation window is fixedly connected around the shearing box.
[0012] Optionally, there are multiple circular grooves, and the multiple circular grooves are evenly distributed along the horizontal direction of the shearing table.
[0013] Optionally, a powerful magnet is fixedly connected to the bottom of the surface of the circular groove. The powerful magnet is in contact with the diode. Through holes are opened at both ends of the top surface of the powerful magnet, and the bottom end of the through hole passes through the powerful magnet and the shearing table.
[0014] Optionally, a circular cover plate is slidably connected to the surface of the circular groove. The circular cover plate is made of iron material. A slot matching the top of the diode is opened in the middle of the bottom end of the circular cover plate. Protective cotton is fixedly connected to the inner surface of the slot. A pull ring is fixedly connected to the top of the circular cover plate.
[0015] This utility model provides an automatic single-blade cutting device for diode leads, which has the following advantages:
[0016] 1. This diode lead single-blade automatic shearing device, when it is necessary to cut diode leads of different lengths, uses the cooperation of the screw and screw block, and the cooperation of the dovetail groove and dovetail block to move the diode lead to a position near the shearing blade. The distance between the diode lead and the shearing blade can be observed through the observation window of the shearing box. Since the screw pitch is constant, the number of turns of the handwheel can be used to precisely adjust the rising and falling position of the diode lead, so that the part of the diode lead to be cut is aligned with the shearing blade.
[0017] 2. This diode lead single-blade automatic cutting device, before cutting the diode lead, places the diode in a circular groove and aligns its circular cover plate with the groove. Due to the magnetic effect of the strong magnet and the fact that the circular cover plate is made of iron, the strong magnet and the circular cover plate work together to fix the upper and lower ends of the diode, preventing the diode lead from shifting during cutting and affecting the cutting accuracy. The magnetic effect of the circular cover plate and the strong magnet can quickly fix the diode, making it easy for operators to use. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;
[0019] Figure 2 This is a schematic diagram of the main sectional view of the structure of this utility model;
[0020] Figure 3 This is a top view sectional diagram of the structure of this utility model;
[0021] Figure 4 This is a top view of the structure of this utility model;
[0022] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A;
[0023] Figure 6 This is a side view of the structure of this utility model.
[0024] In the diagram: 1. Shearing box; 2. Observation window; 3. Dovetail block; 4. First support column; 5. Pull ring; 6. Circular groove; 7. Cover plate; 8. Handwheel; 9. Screw; 10. Second support column; 11. Screw block; 12. Dual-axis cylinder; 13. L-shaped clamp; 14. Shearing blade; 15. Strong magnet; 16. Diode; 17. Shearing table; 18. Scrap box. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0026] Example
[0027] Please see Figures 1 to 4The present invention provides a technical solution including a main shearing box 1. A first support column 4 and a second support column 10 are fixedly connected to the two ends of the bottom of the shearing box 1. A screw 9 is rotatably connected inside the second support column 10. The screw 9 has a pitch of one millimeter. The top of the screw 9 passes through the second support column 10 and is fixedly connected to a handwheel 8. The outer edge of the handwheel 8 is provided with a scale, with each turn corresponding to a 1mm displacement, allowing the operator to visually read the adjustment amount. A screw block 11 is threaded onto the surface of the screw 9, with one end of the screw block 11 passing through the second support column 10. A shearing table 17 is fixedly connected to the first support column 4. A dovetail block 3 is fixedly connected to one end of the shearing table 17. A dovetail groove is opened on the top surface of the first support column 4. The dovetail block 3 is slidably connected to the dovetail groove. A circular groove 6 is opened on the top surface of the shearing table 17. A diode 16 is provided on the inner surface of the circular groove 6. A dual-axis cylinder 12 is fixedly connected to the middle of one side of the first support column 4. L-shaped clamping blocks 13 are fixedly connected to both ends of the piston rod of the dual-axis cylinder 12. A shearing blade 14 is fixedly connected to the inner side of the L-shaped clamping block 13. The blade of the shearing blade 14 is sharp.
[0028] Specifically, when it is necessary to cut diode 16 leads of different lengths, the diode 16 is fixed in place. Holding the handwheel 8, the screw 9 and screw block 11 work together, and the dovetail groove and dovetail block 3 work together to move the shearing table 17 into the shearing box 1. Since the screw pitch of the screw 9 is one millimeter, when the handwheel 8 rotates one revolution, it can move the diode 16 lead downwards by one millimeter. By rotating the handwheel 8, the upward and downward positions of the diode 16 lead can be precisely adjusted, aligning the diode 16 lead to be cut with the shearing blade 14. The switch of the dual-axis cylinder 12 is closed, and the L-shaped clamp 13 works together to move the shearing blade 14 parallel to the diode 16 lead to be cut. Since the blade of the shearing blade 14 is sharp, it can cut off the diode 16 lead.
[0029] Please see Figures 1 to 4 A waste box 18 is slidably connected to the middle of the bottom of the shearing box 1. One end of the waste box 18 passes through the shearing box 1. Observation windows 2 are fixedly connected around the shearing box 1.
[0030] Specifically, the cut pins are collected through the waste box 18, and the positions of the diode 16 pins and the shearing blade 14 are observed through the observation window 2 of the shearing box 1.
[0031] Please refer to Figures 2 and 5. Figure 6There are multiple circular grooves 6, which are evenly distributed along the horizontal direction of the shearing table 17. A strong magnet 15 is fixedly connected to the bottom of the surface of the circular groove 6. The strong magnet 15 is in contact with the diode 16. Through holes are opened at both ends of the top surface of the strong magnet 15. The bottom end of the through hole passes through the strong magnet 15 and the shearing table 17, and passes through the pin of the diode 16 through the through hole. The main body of the diode 16 is fixed by the strong magnet 15. A circular cover plate 7 is slidably connected to the surface of the circular groove 6. The circular cover plate 7 is made of iron material. A slot matching the top of the diode 16 is opened in the middle of the bottom end of the circular cover plate 7. Protective cotton is fixedly connected to the inner surface of the slot. A pull ring 5 is fixedly connected to the top of the circular cover plate 7.
[0032] Specifically, before cutting the leads of diode 16, place diode 16 in the circular groove 6, allowing the leads of diode 16 to pass through the through-holes of the strong magnet 15 and the shearing table 17. Hold the pull ring 5 and align the circular cover plate 7 with the circular groove 6. Due to the magnetic effect of the strong magnet 15 and the fact that the circular cover plate 7 is made of iron, it can be moved downwards along the circular groove 6, pressing against the top of diode 16. Since the strong magnet 15 is fixed, the interaction between the strong magnet 15 and the circular cover plate 7 fixes both ends of diode 16. Because the circular cover plate 7 has a slot that matches the top of diode 16, it can better fit diode 16, thus better fixing diode 16 and preventing diode 16 from shifting during cutting.
[0033] During use, before cutting the leads of diode 16, place diode 16 in the circular groove 6, ensuring its leads pass through the through-holes of the strong magnet 15 and the cutting table 17. Hold the pull ring 5 and align the circular cover plate 7 with the circular groove 6. Due to the magnetic effect of the strong magnet 15 and the fact that the circular cover plate 7 is made of iron, it can be moved downwards along the circular groove 6, pressing against the top of diode 16. Since the strong magnet 15 remains stationary, the interaction between the strong magnet 15 and the circular cover plate 7 secures both ends of diode 16. The circular cover plate 7 has a slot that matches the top of diode 16, allowing for a better fit and secure fixation, preventing the diode 16 leads from shifting during cutting. When cutting diode 16 leads of different lengths, use... The diode 16 is fixed in place. Holding the handwheel 8, the screw 9 and screw block 11 work together, and the dovetail groove and dovetail block 3 work together to move the shearing table 17 into the shearing box 1. Since the screw pitch of the screw 9 is one millimeter, when the handwheel 8 rotates one revolution, it can move the diode 16 pin down one millimeter. By rotating the handwheel 8, the position of the diode 16 pin can be precisely adjusted to align the pin to be cut with the shearing blade 14. The switch of the dual-axis cylinder 12 is closed, and the L-shaped clamp 13 works together to move the shearing blade 14 parallel to the pin to be cut. Since the blade of the shearing blade 14 is sharp, it can cut off the diode 16 pin. The cut pin is collected through the waste box 18, and the position of the diode 16 pin and the shearing blade 14 is observed through the observation window 2 of the shearing box 1.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A single-blade automatic shearing device for diode leads, comprising a main shearing box (1), characterized in that: The shear box (1) has a first support column (4) and a second support column (10) fixedly connected to its bottom ends. The second support column (10) is rotatably connected to a screw (9). The screw (9) has a pitch of one millimeter. The top of the screw (9) passes through the second support column (10) and is fixedly connected to a handwheel (8).
2. The diode lead single-blade automatic shearing device according to claim 1, characterized in that: The screw (9) is threaded with a screw block (11). One end of the screw block (11) passes through the second support column (10) and is fixedly connected to a shearing table (17). One end of the shearing table (17) is fixedly connected to a dovetail block (3). The top surface of the first support column (4) is provided with a dovetail groove. The dovetail block (3) is slidably connected to the dovetail groove. The top surface of the shearing table (17) is provided with a circular groove (6). The inner surface of the circular groove (6) is provided with a diode (16).
3. The diode pin single-blade automatic shearing device according to claim 1, characterized in that: A dual-axis cylinder (12) is fixedly connected to the middle of one side of the first support column (4). L-shaped clamps (13) are fixedly connected to both ends of the piston rod of the dual-axis cylinder (12). A shearing blade (14) is fixedly connected to the inner side of the L-shaped clamp (13). The blade of the shearing blade (14) is sharp.
4. The diode pin single-blade automatic shearing device according to claim 1, characterized in that: The shearing box (1) is slidably connected to the middle of the bottom of the interior. One end of the waste box (18) passes through the shearing box (1). The shearing box (1) is fixedly connected to the four sides of the shearing box (1) with observation windows (2).
5. The diode lead single-blade automatic shearing device according to claim 2, characterized in that: There are multiple circular grooves (6), and the multiple circular grooves (6) are evenly distributed along the horizontal direction of the shearing table (17).
6. The diode lead single-blade automatic shearing device according to claim 5, characterized in that: A powerful magnet (15) is fixedly connected to the bottom of the surface of the circular groove (6). The powerful magnet (15) is in contact with the diode (16). Through holes are opened at both ends of the top surface of the powerful magnet (15). The bottom end of the through hole passes through the powerful magnet (15) and the shearing table (17).
7. The diode pin single-blade automatic shearing device according to claim 5, characterized in that: A circular cover plate (7) is slidably connected to the surface of the circular groove (6). The circular cover plate (7) is made of iron material. A slot matching the top of the diode (16) is opened in the middle of the bottom end of the circular cover plate (7). Protective cotton is fixedly connected to the inner surface of the slot. A pull ring (5) is fixedly connected to the top of the circular cover plate (7).