A wire sheath punching device
By employing an axial positioning design and driving components with a first positioning tube and a second positioning tube in the wire sheath punching device, the problem of inaccurate cutting caused by wire offset during the punching process is solved, achieving accurate cutting and automatic cleaning of the wire sheath, and improving processing efficiency and wiring quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN GU TOWNHONGLI WIRE ELECTRICAL APPLIANCE FACTORY CO
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-12
AI Technical Summary
Existing wire sheathing punching devices lack a stable guiding and positioning mechanism when processing long or flexible wires. This causes the wires to bend or deviate during the punching process, resulting in inaccurate cutting positions, affecting wiring quality, or damaging the internal copper wires. Furthermore, manual positioning has poor stability.
The first and second positioning tubes are set along the same axis, and the diameter of the tube cavity is adapted to the diameter of the wire. Combined with the design of the drive component and push plate, the axial positioning of the wire and automatic outer sheath cleaning are realized, ensuring that the punching position is accurate.
Stable axial positioning and automatic outer sheath cleaning avoid problems such as excessive punching length or damage to internal conductors, improving processing efficiency and consistency of wiring quality.
Smart Images
Figure CN224347931U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a wire sheath punching device. Background Technology
[0002] In wire processing, electrical installation, and equipment maintenance, precise punching of the wire sheath to expose the internal copper wire is an essential process. Existing wire sheath punching devices generally suffer from poorly designed positioning structures, especially when handling long or flexible wires. Due to the lack of a stable guiding and positioning mechanism, the wire is prone to bending, shifting, or shaking.
[0003] Specifically, when the wire is in an unguided state, its end is prone to radial sway or axial bending due to external forces during the punching process, causing the cutting position of the punching device to fail to accurately align with the preset outer sheath cutting line. This positioning deviation directly results in excessive punching length, which at best leaves excess outer sheath residue affecting wiring quality, and at worst cuts into the internal copper wire, causing damage, strand breakage, or decreased conductivity. In severe cases, it can even lead to the scrapping of the wire, increasing material waste and rework costs. Traditional punching devices often rely on operators manually supporting the wire for positioning, which is not only labor-intensive but also susceptible to instability due to factors such as operator experience and fatigue, making it difficult to guarantee consistency during batch processing. Although some devices have simple positioning components, the gap between the positioning components and the wire is too large, or positioning is only performed at a single position, which cannot effectively limit the bending deformation of the wire and still cannot solve the problem of insufficient cutting accuracy caused by wire bending during the punching process. Utility Model Content
[0004] In view of the defects of the prior art, the technical problem to be solved by this utility model is to provide a wire sheath punching device.
[0005] A wire sheath punching device includes a connecting base. A first positioning tube and a second positioning tube are respectively provided on the connecting base along the same axis. The first positioning tube has a first cavity open at both ends, and the second positioning tube has a second cavity open at one end, with the open end of the second cavity facing the first positioning tube. The diameters of the first and second cavities are equal and respectively adapted to the diameter of the wire. The connecting base is provided with a first driving member capable of driving the second positioning tube to rotate downwards, so that the opening of the second cavity faces downwards. A gap is left between the first and second positioning tubes. The connecting base is provided with a first punching device capable of cutting the wire sheath located within the gap.
[0006] In one embodiment, a push plate that can move along its axial direction is provided in the second cavity, and a horizontal guide groove is provided through it along its axial direction on one side of the second positioning tube. A first connecting plate is provided on the connecting seat and located on one side of the second positioning tube. An oblique guide groove is provided through it on one side of the first connecting plate. A guide shaft is provided on one side of the push plate. The guide shaft passes through the horizontal guide groove and the oblique guide groove in sequence and can be displaced along the length directions of the two grooves respectively.
[0007] In one embodiment, an adjusting seat is movably disposed on the connecting seat. The adjusting seat can move closer to or further away from the first positioning tube along the axial direction of the first positioning tube. Two U-shaped holes are respectively opened through the adjusting seat, and fastening screws that are threadedly engaged with the connecting seat are inserted into the U-shaped holes. The first driving member, the second positioning tube, and the first connecting plate are all disposed on the adjusting seat.
[0008] In one embodiment, the first driving component is a motor, and the second positioning tube is disposed on the drive shaft of the motor.
[0009] In one embodiment, the first punching device includes two staggered and oppositely arranged blades, with a V-shaped cut on the opposite inner side of the two blades, and a second driving member that synchronously drives the two blades to move closer or further apart.
[0010] In one embodiment, the second driving component includes two first swing arms and two second swing arms that are symmetrically rotatably disposed on a connecting seat. A cylinder is provided on the connecting seat, and a slider is provided on the drive shaft of the cylinder. The slider is movably connected to the connecting seat via a slide rail. One end of the second swing arm is hinged to the slider, and one end of the first swing arm is hinged to the other end of the second swing arm. The other end of the first swing arm is connected to the blade in a one-to-one correspondence.
[0011] In one embodiment, the second driving component is a finger cylinder disposed on the connecting seat, and a second connecting plate is respectively connected to the two driving ends of the finger cylinder. The blades are disposed on the second connecting plates one by one and located in the gap between the first positioning tube and the second positioning tube.
[0012] In summary, the advantages of this utility model over the prior art are:
[0013] This invention features a first positioning tube and a second positioning tube arranged along the same axis, with the tube diameter matching the wire diameter. This provides stable axial positioning for the wire, ensuring accurate punching position and effectively preventing excessive punching length or damage to the internal conductor due to wire misalignment. Furthermore, the driving component rotates the second positioning tube downwards, and in conjunction with the push plate's ejection action, automatically discharges the punched outer sheath from the second positioning tube, eliminating the need for manual cleaning, reducing operational steps, and improving processing efficiency. Attached image description;
[0015] Figure 1 This is a perspective view of a wire sheath punching device according to one embodiment of the present invention;
[0016] Figure 2 This is a front view of a wire sheath punching device according to one embodiment of the present invention;
[0017] Figure 3 As one embodiment of this utility model Figure 2 Enlarged view of point A;
[0018] Figure 4 This is a cross-sectional view of the second positioning tube in one embodiment of the present invention. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0020] like Figures 1 to 4 The present invention preferably provides a wire sheath punching device, including a connecting seat 1. The connecting seat 1 is provided with a first positioning tube 2 and a second positioning tube 3 along the same axis. The first positioning tube 2 has a first cavity with openings at both ends, and the second positioning tube 3 has a second cavity with an opening at one end, with the opening end of the second cavity facing the first positioning tube 2. The diameter of the first cavity and the diameter of the second cavity are equal and are respectively adapted to the diameter of the wire. The connecting seat 1 is provided with a first driving member 4 that can drive the second positioning tube 3 to rotate downward, so that the opening of the second cavity faces downward. A gap is left between the first positioning tube 2 and the second positioning tube 3. The connecting seat 1 is provided with a first punching device 5 that can cut the wire sheath located in the gap.
[0021] Specifically, the diameter of the first cavity is equal to the diameter of the second cavity, and both diameters are matched to the outer diameter of the wire to be punched, ensuring that the wire can smoothly pass through the first cavity and be inserted into the second cavity, achieving axial positioning of the wire and preventing radial displacement of the wire during punching. A preset gap is left between the first positioning tube and the second positioning tube, which is the punching area for the wire sheath. During operation, one end of the wire is passed through the first cavity of the first positioning tube, the gap, and inserted into the second cavity of the second positioning tube. The joint positioning of the first and second positioning tubes ensures the stability of the wire at the gap. Then, the first punching device operates to punch the wire sheath within the gap. After punching, the wire is manually pulled out, and the punched sheath remains in the second cavity. At this time, the driving component drives the second positioning tube to rotate downward, so that the opening of the second cavity faces downward. The punched sheath in the second cavity falls off under the action of gravity, completing the automatic cleaning of the sheath.
[0022] Furthermore, a push plate 6 movable along its axial direction is provided inside the second cavity. A horizontal guide groove 7 is provided through the second positioning tube 3 along its axial direction on one side. A first connecting plate 8 is provided on the connecting seat 1 and located on one side of the second positioning tube 3. An oblique guide groove 9 is provided through the first connecting plate 8 on one side. A guide shaft 10 is provided on one side of the push plate 6. The guide shaft 10 passes through the horizontal guide groove 7 and the oblique guide groove 9 in sequence and can be displaced along their respective length directions. Specifically, when the driving component drives the second positioning tube to rotate downward, the second positioning tube drives the horizontal guide groove to rotate synchronously. At this time, the position of the guide shaft in the horizontal guide groove changes with the rotation of the second positioning tube. At the same time, since the first connecting plate is fixed, the guide shaft slides along the inclined direction of the oblique guide groove. Under the combined guiding action of the horizontal guide groove and the oblique guide groove, the guide shaft drives the push plate to move towards the open end along the axial direction of the second cavity, pushing out the remaining outer skin in the second cavity, further ensuring that the outer skin can be completely removed from the second positioning tube and avoiding the residue of the outer skin. When the second positioning tube is reset, the guide shaft slides in the opposite direction along the inclined guide groove, driving the push plate back into the second tube cavity to prepare for the next wire insertion.
[0023] Furthermore, an adjusting seat 11 is movably disposed on the connecting seat 1. The adjusting seat 11 can move closer to or further away from the first positioning tube 2 along the axial direction of the first positioning tube 2. Two U-shaped holes 12 are respectively opened through the adjusting seat 11. Fastening screws (not shown in the figure) that are threadedly engaged with the connecting seat 1 are inserted into the U-shaped holes 12. The first driving component 4, the second positioning tube 3, and the first connecting plate 8 are all disposed on the adjusting seat 11.
[0024] Specifically, the length direction of the U-shaped hole is consistent with the displacement direction of the adjusting seat. A fastening screw is inserted into the U-shaped hole, and the screw thread passes through the U-shaped hole and engages with the pre-set threaded hole on the connecting seat. When it is necessary to adjust the gap between the first and second positioning tubes, the fastening screw is loosened, and the adjusting seat is pushed to move axially. At this time, the fastening screw slides in the U-shaped hole. After the gap is adjusted to the preset size, the fastening screw is tightened, and the adjusting seat is fixed by the threaded engagement between the fastening screw and the connecting seat. The driving component, the second positioning tube, and the first connecting plate are all integrated on the adjusting seat and move synchronously with the adjusting seat, ensuring that the axes of the second and first positioning tubes remain consistent when the adjusting seat moves, while ensuring that the fit between the push plate, guide shaft, and other components is not affected. By adjusting the gap size, it can adapt to the punching requirements of wire sheaths of different lengths, improving the versatility of the device.
[0025] Furthermore, the first driving component 4 is a motor, and the second positioning tube 3 is disposed on the drive shaft of the motor.
[0026] Specifically, the driving component is a motor, which is fixedly mounted on the adjusting base with bolts. The motor's drive shaft is set along the axis of the first positioning tube, and the side of the second positioning tube away from the open end is fixedly connected to the motor's drive shaft (this connection can be achieved through a coupling or welding). When the motor is working, its drive shaft drives the second positioning tube to rotate around its axis, realizing the flipping action of the second positioning tube. The rotation angle of the motor can be precisely controlled by a controller (such as using a stepper motor or servo motor) to ensure that the second positioning tube can be accurately flipped to the open-down position or reset to the initial position, improving the accuracy and stability of the device's operation.
[0027] Furthermore, the first punching device 5 includes two staggered and oppositely arranged blades 13, with V-shaped cuts on the opposite inner sides of the two blades 13, and a second driving member 21 that synchronously drives the two blades 13 to move closer or further apart.
[0028] Specifically, the cutting end of the blade has a V-shaped opening, the angle of which is adapted to the cutting requirements of the wire sheath (usually 90°-120°). The V-shaped openings of the two blades are positioned opposite each other, forming a cutting area that can wrap around the outer circumference of the wire. The second driving component is connected to the two blades and can synchronously drive the two blades to move relatively closer or further apart in a direction perpendicular to the wire axis: when the two blades are relatively close, the cutting edge of the V-shaped opening contacts the wire sheath and completes the cut; when the two blades are relatively far apart, the constraint on the wire is released, facilitating the insertion or removal of the wire. The V-shaped opening allows the blades to adapt to cutting the sheaths of wires of different diameters (within a certain range), and can form a uniform circumferential cutting force on the wire during cutting, avoiding force deviation on the wire.
[0029] In one embodiment, the second driving component 21 includes two first swing arms 14 and two second swing arms 15 symmetrically rotatably mounted on a connecting seat 1. A cylinder 16 is mounted on the connecting seat 1, and a slider 17 is mounted on the drive shaft of the cylinder 16. The slider 17 is movably connected to the connecting seat 1 via a slide rail. One end of each second swing arm 15 is hinged to the slider 17, and one end of each first swing arm 14 is hinged to the other end of each second swing arm 15. The other ends of the first swing arms 14 are connected to the blades 13. Specifically, when the cylinder drives the slider to move along the slide rail, the slider causes one end of each of the two second swing arms to move synchronously. The second swing arms rotate around their midpoints and push one end of each first swing arm to move, causing the first swing arms to rotate around their midpoints. This, in turn, causes the two blades to move synchronously closer or further apart, achieving the punching action. Through the lever effect of the swing arms, the driving force of the cylinder can be effectively transmitted to the blades, and the symmetrical arrangement of the two swing arms ensures the synchronicity of the movement of the two blades, improving the punching accuracy.
[0030] In another embodiment, the second driving component 21 is a finger cylinder (not shown) mounted on the connecting seat 1. A second connecting plate (not shown) is connected to each of the two driving ends of the finger cylinder (not shown). The blades 13 are correspondingly mounted on the second connecting plates (not shown) and located within the gap between the first positioning tube 2 and the second positioning tube 3. Specifically, when the finger cylinder operates, its two driving ends move synchronously closer or further apart, directly driving the two blades through the second connecting plates: when the driving ends approach each other, the two blades cut the wire sheath within the gap; when the driving ends move away, the blades reset. The finger cylinder simplifies the structure of the second driving component, increases its response speed, and allows for precise control of the cutting depth of the blades by adjusting the stroke of the finger cylinder, adapting to the cutting requirements of wire sheaths of different thicknesses.
[0031] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A wire sheath punching device, characterized in that: The device includes a connector (1), on which a first positioning tube (2) and a second positioning tube (3) are respectively provided along the same axis. The first positioning tube (2) has a first cavity with openings at both ends, and the second positioning tube (3) has a second cavity with openings at one end, with the opening end of the second cavity facing the first positioning tube (2). The diameter of the first cavity and the diameter of the second cavity are equal and are respectively adapted to the diameter of the wire. The connector (1) is provided with a first driving member (4) that can drive the second positioning tube (3) to rotate downward, so that the opening of the second cavity faces downward. A gap is left between the first positioning tube (2) and the second positioning tube (3). The connector (1) is provided with a first punching device (5) that can cut the outer sheath of the wire located in the gap.
2. The wire sheath punching device according to claim 1, characterized in that: The second cavity is provided with a push plate (6) that can move along its axial direction. A horizontal guide groove (7) is provided through the second positioning tube (3) along its axial direction. A first connecting plate (8) is provided on the connecting seat (1) and located on the side of the second positioning tube (3). An oblique guide groove (9) is provided through the first connecting plate (8) on one side. A guide shaft (10) is provided on one side of the push plate (6). The guide shaft (10) passes through the horizontal guide groove (7) and the oblique guide groove (9) in sequence and can be displaced along their respective length directions.
3. The wire sheath punching device according to claim 2, characterized in that: An adjusting seat (11) is movably provided on the connecting seat (1). The adjusting seat (11) can move closer to or further away from the first positioning tube (2) along the axial direction of the first positioning tube (2). Two U-shaped holes (12) are respectively opened through the adjusting seat (11). A fastening screw that is threadedly engaged with the connecting seat (1) is inserted into the U-shaped hole (12). The first driving component (4), the second positioning tube (3), and the first connecting plate (8) are all provided on the adjusting seat (11).
4. The wire sheath punching device according to claim 3, characterized in that: The first driving component (4) is a motor, and the second positioning tube (3) is disposed on the drive shaft of the motor.
5. The wire sheath punching device according to claim 1, characterized in that: The first punching device (5) includes two staggered and oppositely arranged blades (13), with a V-shaped cut on the opposite inner side of the two blades (13), and a second driving member (21) that synchronously drives the two blades (13) to move closer or further away from each other.
6. The wire sheath punching device according to claim 5, characterized in that: The second driving component (21) includes two first swing arms (14) and two second swing arms (15) that are symmetrically rotatably disposed on the connecting seat (1). The connecting seat (1) is provided with a cylinder (16). The drive shaft of the cylinder (16) is provided with a slider (17). The slider (17) is movably connected to the connecting seat (1) through a slide rail. One end of the second swing arm (15) is hinged to the slider (17). One end of the first swing arm (14) is hinged to the other end of the second swing arm (15). The other end of the first swing arm (14) is connected to the blade (13) one by one.
7. The wire sheath punching device according to claim 5, characterized in that: The second driving component (21) is a finger cylinder mounted on the connecting seat (1). A second connecting plate is connected to each of the two driving ends of the finger cylinder. The blade (13) is mounted on the second connecting plate and located in the gap between the first positioning tube (2) and the second positioning tube (3).