Lead clamping tweezers with scratch-proof structure

Abstract

The application relates to the technical field of electronic manufacturing, in particular to a lead clamping tweezers with scratch-proof structure, which comprises a first rigid arm, one side of the first rigid arm is provided with a second rigid arm, and the tail ends of the first rigid arm and the second rigid arm are provided with clamping mechanisms. The utility model discloses a knob, a worm, a worm wheel, a pointer and a dial and other components are arranged, so that the worm wheel can drive the tip clamping arm to rotate around the shaft through the rotating shaft, the clamping angle of the lead is accurately adjusted, the cooperation between the pointer and the dial can display the angle value in real time, and the device can quantitatively adjust the clamping angle, so that the precise lead can be accurately positioned and clamped. Through the transmission cooperation of the worm wheel and the worm, the fixed connection between the rubber sheet and the tip clamping arm and other relationships, the tip clamping arm can generate stable friction force on the lead surface through the inside symmetrical high-friction coefficient silicone rubber sheet and avoid direct metal contact.

Description

Technical Field

[0001] This application relates to the field of electronic manufacturing technology, and in particular to a lead wire holding tweezer with a scratch-resistant structure. Background Technology

[0002] In fields such as electronics manufacturing and precision instrument assembly, lead clamping is extremely common and requires very high precision. Traditional lead clamping tweezers have a simple structure, mostly consisting of simple metal clamping arms. When holding them, the operator's hand is prone to fatigue due to prolonged pressure, and slippage is common, affecting operational stability. Furthermore, during lead clamping, the rigid clamping tips of ordinary tweezers make it difficult to precisely control the clamping force, which can easily lead to scratches and deformation of the lead surface, affecting its conductivity and structural strength. Instable clamping can also cause the lead to detach, leading to assembly errors or component damage.

[0003] Regarding the aforementioned technologies, the inventors have discovered the following defects: most existing devices use metal hard clamping arms, which easily cause scratches and plating wear on the lead surface during clamping, especially causing significant damage to gold / silver plated leads; fixed angle designs (such as 90° or 180°) cannot adapt to complex angle clamping requirements; a few adjustable structures use spring clips, which are unstable in angle locking and are prone to loosening. Utility Model Content

[0004] To address the problems mentioned in the background section, this application provides a lead wire clamping tweezer with an anti-scratch structure.

[0005] This application provides a lead wire clamping tweezers with an anti-scratch structure, employing the following technical solution: A lead wire clamping tweezers with an anti-scratch structure includes a first rigid arm, a second rigid arm disposed on one side of the first rigid arm, and a clamping mechanism disposed at the ends of both the first and second rigid arms; the clamping mechanism includes a driving component and a clamping component, the driving component being used to drive the clamping component to move, the clamping component being used to clamp the lead wire, the driving component including a bearing seat, a worm gear, a knob, and a pointer, wherein: the knob is used to manually drive the worm gear, the bearing seat is used to movably mount the worm gear, the worm gear is used to adjust the clamping angle of the clamping component, and the pointer is used to indicate the current clamping angle. The worm gear is driven to rotate by the knob, meshing with a worm wheel for transmission, converting the rotational motion into angle adjustment of the clamping component, thereby achieving precise control of the opening and closing range of the clamping arm.

[0006] Optionally, the clamping assembly includes a worm gear, a rotating shaft, a dial, a tip clamping arm, and a rubber sheet. The worm gear meshes with the worm of the drive assembly for transmission. The rotating shaft is fixedly installed at the bottom of the worm gear. The dial is fixedly sleeved on one side of the rotating shaft. The tip clamping arm is used to clamp the lead wire. The rubber sheet is fixedly connected to the end of the tip clamping arm near the lead wire to increase clamping friction and prevent scratching the lead wire. The worm gear meshes with the worm and receives the transmission power of the worm, driving the rotating shaft to rotate, thereby driving the tip clamping arm to move and realize the function of clamping or releasing the lead wire.

[0007] Optionally, the second rigid arm includes a starting clamping arm, a first hand guard, and a second hand guard. The starting clamping arm is movably connected to the first rigid arm via a limiting rod. The starting clamping arm and the first hand guard together form a semi-circular structure. The second hand guard is fixedly connected inside the semi-circular structure to protect the operator's fingers.

[0008] Optionally, the bearing housing is fixedly mounted on the top of the starting clamping arm, and the worm gear is fixedly connected to one side of the knob.

[0009] Optionally, the pointer is fixedly connected to one side of the starting clamping arm and movably covers the top of the dial to indicate the angle scale on the dial.

[0010] Optionally, the pivot is movably mounted on the bottom of the starting clamp arm, allowing the tip clamp arm to rotate about the pivot.

[0011] Optionally, the first and second hand guards are arranged parallel to each other on both sides of the starting clamp arm to form a double hand guard anti-slip structure.

[0012] Optionally, the rubber sheet is symmetrically attached to the opposite inner surfaces of the two tip clamping arms. The material is high-friction coefficient silicone rubber. The tip clamping arms directly clamp the actuator of the lead wire. The opening and closing are achieved by rotating the shaft. The tip design is suitable for gripping fine leads.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. This utility model, by setting up components such as a knob, worm gear, worm wheel, pointer, and dial, and through the fixed connection between the knob and the worm gear, and the meshing transmission between the worm gear and the worm wheel, enables the worm wheel to drive the tip clamping arm to rotate around the axis via the rotating shaft, thereby precisely adjusting the clamping angle of the lead wire. The cooperation between the pointer and the dial can display the angle value in real time, thus achieving the effect of precise positioning and clamping of precision lead wires by quantitatively adjusting the clamping angle.

[0015] 2. This utility model, by setting up components such as a tip clamping arm, a rubber sheet, a worm gear, and a worm, and through the transmission cooperation between the worm gear and the worm, and the fixed connection between the rubber sheet and the tip clamping arm, enables the tip clamping arm to generate stable friction on the lead surface through the symmetrically fitted high-friction coefficient silicone rubber sheet on the inner side, while avoiding direct metal contact. The self-locking characteristic of the worm gear transmission can maintain the clamping force, thereby achieving the effect of scratch-proof clamping of easily damaged leads through flexible contact. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0017] Figure 2 This is a partial structural diagram of an embodiment of this application;

[0018] Figure 3 This is a partial structural diagram of the clamping mechanism in an embodiment of this application;

[0019] Figure 4 This is a detailed schematic diagram of the clamping mechanism components in the embodiments of this application.

[0020] Reference numerals: 1. First rigid arm; 2. Second rigid arm; 201. Starting clamping arm; 202. First hand guard bar; 203. Second hand guard bar; 3. Clamping mechanism; 301. Bearing seat; 302. Worm gear; 303. Knob; 304. Pointer; 305. Worm wheel; 306. Rotating shaft; 307. Dial; 308. Tip clamping arm; 309. Rubber sheet. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0022] This application discloses a lead wire holding tweezer with a scratch-resistant structure.

[0023] like Figure 1 and Figure 2As shown, a wire-holding tweezers with an anti-scratch structure includes a first rigid arm 1 and a second rigid arm 2 on one side of the first rigid arm 1. The second rigid arm 2 includes a starting clamping arm 201, a first hand guard 202, and a second hand guard 203. The starting clamping arm 201 is movably connected to the first rigid arm 1 via a limiting rod. The starting clamping arm 201 and the first hand guard 202 together form a semi-circular structure. The second hand guard 203 is fixedly connected inside the semi-circular structure to protect the operator's fingers. The first hand guard 202 and the second hand guard 203 are arranged parallel to each other on both sides of the starting clamping arm 201, forming a double-hand-protecting anti-slip structure. This structure distributes grip pressure through ergonomic design, reducing hand fatigue caused by prolonged operation. At the same time, the parallel layout of the two bars enhances grip stability and effectively prevents the tweezers from accidentally slipping out.

[0024] like Figure 3 and Figure 4 As shown, clamping mechanisms 3 are provided at the ends of the first rigid arm 1 and the second rigid arm 2. The clamping mechanism 3 includes a drive component and a clamping component. The drive component is used to drive the clamping component to move, and the clamping component is used to clamp the lead wire. The drive component includes a bearing seat 301, a worm gear 302, a knob 303, and a pointer 304. The knob 303 is used to manually drive the worm gear 302, the bearing seat 301 is used to movably mount the worm gear 302, the worm gear 302 is used to adjust the clamping angle of the clamping component, and the pointer 304 is used to indicate the current clamping angle. The bearing seat 301 is fixedly installed on the top of the starting clamping arm 201, and the worm gear 302 is fixedly connected to one side of the knob 303. The drive component achieves precise angle adjustment through the transmission of the worm gear 302 and the worm wheel 305. The knob 303 is easy and smooth to operate, and together with the pointer 304 and the dial 307, it forms a visual adjustment feedback to meet the precise control requirements of different lead wire diameters and clamping forces.

[0025] like Figure 3 and Figure 4 As shown, the clamping assembly includes a worm gear 305, a rotating shaft 306, a dial 307, a tip clamping arm 308, and a rubber sheet 309. The worm gear 305 meshes with the worm 302 of the drive assembly for transmission. The rotating shaft 306 is fixedly mounted on the bottom of the worm gear 305. The dial 307 is fixedly sleeved on one side of the rotating shaft 306. The tip clamping arm 308 is used to clamp the lead wire. The rubber sheet 309 is fixedly connected to the end of the tip clamping arm 308 near the lead wire to increase clamping friction and prevent scratching the lead wire. The pointer 304 is fixedly connected to one side of the starting clamping arm 201 and movably covers the top of the dial 307 to indicate the angle scale on the dial 307. The clamping assembly uses the worm gear 305 and worm 302 transmission to achieve stable self-locking. The rubber sheet 309 is made of high-friction silicone rubber, which can provide reliable clamping force and buffer pressure through elastic deformation, avoiding damage to the lead wire surface caused by direct contact with hard metal.

[0026] like Figure 3 and Figure 4 As shown, the pivot 306 is movably mounted on the bottom of the starting clamping arm 201, allowing the tip clamping arm 308 to rotate around the pivot 306. Rubber sheets 309, made of high-friction silicone rubber, are symmetrically attached to the opposing inner surfaces of the two tip clamping arms 308. The pivot 306 design ensures flexible rotation of the tip clamping arms 308, and the symmetrical attachment structure of the rubber sheets 309 evenly distributes clamping pressure, achieving both stable clamping and scratch protection in the handling of precision electronic components or fragile leads.

[0027] Example

[0028] Precision soldering lead clamping operation for electronic circuit boards

[0029] In the electronic component assembly workshop, operators need to solder and fix thin copper leads with a diameter of 0.15mm. First, the palm is placed against the starting clamping arm 201 of the second rigid arm 2, with the thumb and middle finger placed on the outside of the first hand guard 202 and the second hand guard 203 respectively, forming a stable three-finger grip posture. The semi-circular anti-slip structure formed by the double hand guards can effectively prevent the fingers from slipping.

[0030] When it is found that the lead wire needs to be attached to the circuit board pad at a 45° angle, the knob 303 is rotated clockwise. The worm gear 302, which is fixedly connected to the knob 303, rotates synchronously in the bearing seat 301, driving the worm wheel 305 to rotate clockwise through meshing transmission. The rotating shaft 306, which is fixedly installed at the bottom of the worm wheel 305, rotates accordingly, causing the tip clamping arm 308 to rotate around the rotating shaft 306. At this time, the pointer 304, which is fixed on one side of the starting clamping arm 201, slides on the surface of the dial 307. When the pointer 304 points to the 45° mark, the adjustment stops. The operator pushes the first rigid arm 1 and the second rigid arm 2 closer together, and the rubber sheet 309 on the inner side of the two tip clamping arms 308 contacts the lead wire. The high-friction coefficient silicone rubber sheet 309 ensures that the lead wire does not slip when a clamping force of 0.3N is applied, while avoiding surface scratches caused by direct contact between the metal clamping arms. After welding is completed, rotate knob 303 counterclockwise, and the tip clamping arm 308 will be reset to the 0° clamping angle under the action of the worm gear 302-worm wheel 305 transmission mechanism.

[0031] The implementation principle of the lead wire holding tweezers with anti-scratch structure in this application embodiment is as follows:

[0032] First, the operator manually rotates the knob 303, causing the worm gear 302, which is fixedly connected to the knob 303, to rotate within the bearing seat 301. The rotational motion of the worm gear 302 serves as a power source, providing initial driving force for subsequent clamping angle adjustment. At this time, the rotational speed and direction of the worm gear 302 directly determine the opening and closing range and angle change trend of the clamping assembly.

[0033] Secondly, when the worm 302 rotates, it meshes with the worm wheel 305 to convert the circular motion of the worm 302 into the vertical rotational motion of the worm wheel 305. The rotating shaft 306 is fixedly installed at the bottom of the worm wheel 305 and rotates synchronously with the worm wheel 305, thereby driving the tip clamping arms 308 at both ends to rotate around the center of the rotating shaft 306, realizing the opening and closing action of the clamping arms. This transmission structure utilizes the self-locking characteristics of the worm wheel 305 and worm 302 to stably maintain the current clamping angle and avoid angle deviation caused by external force shaking.

[0034] Next, the pointer 304 is fixed on the starting clamping arm 201 and swings synchronously with the rotation of the worm gear 302. Its end is always in contact with the surface of the dial 307. The dial 307 is sleeved on one side of the rotating shaft 306 and rotates in conjunction with the tip clamping arm 308. When the clamping arm opens or closes to the target angle, the pointer 304 will point to the corresponding angle scale on the dial 307 in real time. The operator can directly obtain the current clamping angle by visual inspection, so as to achieve precise adjustment and positioning.

[0035] Next, when the tip clamping arm 308 rotates to the target angle with the rotating shaft 306, the relative inner surfaces of the two clamping arms contact the lead wire through the rubber sheet 309. The rubber sheet 309 is made of high-friction coefficient silicone rubber, whose softness allows it to closely fit the lead wire surface, forming an elastic buffer while applying clamping force. The rough surface of the rubber sheet 309 increases friction and prevents the lead wire from slipping; it avoids direct contact between the metal clamping arms and the lead wire, eliminating the risk of scratching the insulation layer or plating.

[0036] Finally, during the clamping process, the first hand guard 202 and the second hand guard 203 of the second rigid arm 2 are arranged parallel to each other on both sides of the starting clamping arm 201 to form a semi-circular anti-slip protection structure. When the operator's fingers grip, the double hand guards can effectively limit the range of finger sliding and prevent accidental contact with the clamping mechanism 3 or the lead wire. At the same time, the arc design of the rod body conforms to ergonomics, reduces finger fatigue during long-term operation, and ensures operational stability and safety.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A wire clamping tweezer with an anti-scratch structure, comprising a first rigid arm (1), characterized in that: A second rigid arm (2) is provided on one side of the first rigid arm (1), and a clamping mechanism (3) is provided at the end of both the first rigid arm (1) and the second rigid arm (2); the clamping mechanism (3) includes a driving component and a clamping component, the driving component is used to drive the clamping component to move, and the clamping component is used to clamp the lead wire, the driving component includes a bearing seat (301), a worm gear (302), a knob (303) and a pointer (304), wherein: the knob (303) is used to manually drive the worm gear (302), the bearing seat (301) is used to movably install the worm gear (302), the worm gear (302) is used to adjust the clamping angle of the clamping component, and the pointer (304) is used to indicate the current clamping angle.

2. The lead wire holding tweezers with an anti-scratch structure according to claim 1, characterized in that: The clamping assembly includes a worm gear (305), a rotating shaft (306), a dial (307), a tip clamping arm (308), and a rubber sheet (309). The worm gear (305) meshes with the worm (302) of the drive assembly for transmission. The rotating shaft (306) is fixedly installed at the bottom of the worm gear (305). The dial (307) is fixedly sleeved on one side of the rotating shaft (306). The tip clamping arm (308) is used to clamp the lead wire. The rubber sheet (309) is fixedly connected to the end of the tip clamping arm (308) near the lead wire to increase clamping friction and prevent scratching the lead wire.

3. The lead wire holding tweezers with an anti-scratch structure according to claim 1, characterized in that: The second rigid arm (2) includes a starting clamping arm (201), a first hand guard (202), and a second hand guard (203). The starting clamping arm (201) is movably connected to the first rigid arm (1) through a limiting rod. The starting clamping arm (201) and the first hand guard (202) together form a semi-circular structure. The second hand guard (203) is fixedly connected inside the semi-circular structure to protect the operator's fingers.

4. The lead wire holding tweezers with an anti-scratch structure according to claim 3, characterized in that: The bearing housing (301) is fixedly installed on the top of the starting clamping arm (201), and the worm gear (302) is fixedly connected to one side of the knob (303).

5. The lead wire holding tweezers with an anti-scratch structure according to claim 2, characterized in that: The pointer (304) is fixedly connected to one side of the starting clamp (201) and movably covers the top of the dial (307) to indicate the angle scale on the dial (307).

6. The lead wire holding tweezers with an anti-scratch structure according to claim 2, characterized in that: The pivot (306) is movably mounted on the bottom of the starting clamp (201), enabling the tip clamp (308) to rotate around the pivot (306).

7. The lead wire holding tweezers with an anti-scratch structure according to claim 3, characterized in that: The first hand guard bar (202) and the second hand guard bar (203) are arranged in parallel on both sides of the starting clamp arm (201) to form a double hand guard anti-slip structure.

8. The lead wire holding tweezers with anti-scratch structure according to claim 2, characterized in that: The rubber sheet (309) is symmetrically attached to the opposite inner surfaces of the two pointed clamps (308), and its material is high-friction coefficient silicone rubber.

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