Multi-direction positioning pipe cutting punch precision die

Abstract

The utility model relates to pipe cutting stamping technology field, and disclose a multidirectional positioning pipe cutting stamping precision mould, the utility model discloses a lower mould is provided with stamping device on, the inside of lower mould is provided with proximal end clamping device, two fixed plates are fixedly installed on the lower mould, the fixed plate is slidably installed with sliding frame, the sliding frame is provided with distal end clamping device, and the fixed plate is provided with distance measuring device. The utility model has successfully solved the defects of poor adaptability, obvious distal end vibration, inaccurate positioning and the like of the existing mould through double -end clamping system, staggered V -shaped clamping plate structure, synchronous adjusting mechanism, modular stamping assembly and high -precision distance measuring device, which not only has extensive applicability, but also significantly improves the machining precision, stability and safety.

Description

Technical Field

[0001] This utility model relates to the field of tube cutting and stamping technology, specifically a multi-directional positioning tube cutting and stamping precision mold. Background Technology

[0002] In modern manufacturing, precision molds are widely used in many fields such as automobiles, aerospace, electronics, and home appliances as an important basic equipment for industrial production. Especially in the pipe processing industry, with the increasing complexity of product structures and the improvement of performance requirements, higher precision and efficiency requirements are put forward for processes such as pipe cutting and stamping.

[0003] The patent with publication number CN222429007U discloses a round tube notch cutting die, including: a positioning punching core set at the top center of the lower template; a positioning feeding module set on one side of the positioning punching core by bolt connection; an upper template set directly above the lower template, with a punching machine connecting block set at the top center of the upper template; and a punching module set at the bottom center of the upper template by bolt connection, with the bottom of the punching module extending vertically downward and locked inside the positioning punching core. The length of the round tube to be processed can be controlled by the positioning feeding module, and the excess length of the round tube to be processed can be cut off by the punching module, and an arc-shaped notch can be punched out at one end of the round tube.

[0004] However, the aforementioned device suffers from the following problems during use: This type of mold employs a rigid clamping mechanism, which is typically designed based on fixed dimensions and can only accommodate a single or limited range of pipe diameters. When processing pipes of different diameters, frequent changes of clamps or adjustments to clamping components are necessary, leading to low production efficiency and increased operating costs. Furthermore, the existing mold clamping system is often concentrated at the proximal end (closer to the stamping cutter), while the distal end (far from the stamping point) lacks effective adaptive clamping and vibration-damping design. During the stamping and cutting process, the distal end, due to insufficient clamping force or weak structural rigidity, is susceptible to vibration from the stamping force, resulting in axial displacement of the pipe, uneven cuts, and even increased burrs, severely affecting processing accuracy and product consistency. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art by proposing a multi-directional positioning tube cutting and stamping precision mold, which solves the defects of the existing mold in terms of poor adaptability, obvious remote vibration, and inaccurate positioning.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-directional positioning tube cutting and stamping precision die includes a lower die, a stamping device on the lower die, a proximal clamping device inside the lower die, two fixed plates fixedly mounted on the lower die, a sliding frame slidably mounted on the fixed plates, a distal clamping device on the sliding frame, and a distance measuring device on the fixed plates.

[0008] Preferably, the stamping device includes two side mounting chambers, which are fixedly mounted on the lower die. Each of the two side mounting chambers is provided with an electric telescopic rod. The other end of the electric telescopic rod is fixedly mounted with a mounting plate. A stamping knife is mounted on the mounting plate. The lower die has a corresponding opening at a corresponding position that corresponds to the stamping knife.

[0009] Preferably, the proximal clamping device includes a fixed block and a hydraulic rod. The fixed block is fixedly installed inside the lower mold, and proximal fixed clamping plates are fixedly installed on the fixed block at equal intervals. The hydraulic rod is installed on the lower mold, and a lifting block is fixedly installed on the side of the hydraulic rod away from the lower mold. Proximal movable clamping plates are fixedly installed on the lifting block at equal intervals, and the proximal movable clamping plates are adapted to the proximal fixed clamping plates.

[0010] Preferably, the remote clamping device includes a connecting plate and a movable plate. The connecting plate is fixedly mounted on the sliding frame, and a remote fixed clamping plate is fixedly mounted on the connecting plate. The movable plate is slidably mounted on the sliding frame, and a remote movable clamping plate is fixedly mounted on the movable plate. The remote movable clamping plate is adapted to the remote fixed clamping plate.

[0011] Preferably, threaded rods are rotatably installed inside both sides of the sliding frame, and a synchronous chain is installed between the two threaded rods via a sprocket. Nut pairs are threadedly installed on both threaded rods, and the nut pairs are fixedly connected to the moving plate. A handwheel is fixedly installed through the corresponding sliding frame on one of the threaded rods.

[0012] Preferably, the proximal movable clamp and the proximal fixed clamp are arranged in a staggered manner, and the distal movable clamp and the distal fixed clamp are also arranged in a staggered manner.

[0013] Preferably, the proximal moving clamp and the proximal fixed clamp, as well as the distal moving clamp and the distal fixed clamp, are all V-shaped, and flexible pads are inlaid on the surfaces of the four clamps that face each other.

[0014] Preferably, the distance measuring device includes a distance marker and a stop plate. The distance marker is formed on a fixed plate, the stop plate is slidably mounted on the fixed plate, and a directional marker is fixedly mounted on the stop plate, the directional marker corresponding to the distance marker.

[0015] Preferably, the starting length of the distance to the target corresponds to the position of the corresponding opening.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention significantly improves processing accuracy and stability by integrating a double-end clamping system, a precise distance measuring device, and modular stamping components. Specifically, the near-end hydraulically driven staggered V-shaped clamping plate structure works synergistically with the far-end adjustable clamping device. This not only automatically centers and adapts to various pipe diameters but also effectively suppresses vibration caused by unstable clamping during cutting, ensuring that both ends of the pipe are firmly fixed, suppressing the transmission of vibration at the far end, and resulting in a smooth, burr-free cut. The synchronous adjustment mechanism uses a handwheel to drive a threaded rod and a sprocket to synchronously drive a chain, enabling precise and rapid adjustment of the far-end clamping device, greatly improving the flexibility and adaptability of the equipment. The integrated distance measuring device uses a laser-etched scale and a sliding stop plate to achieve "zero-calculation" rapid positioning of the cutting length. Combined with a modular stamping knife and a quick-release structure, it significantly improves the production efficiency of changing multiple pipe specifications, making it suitable for high-precision, small-batch flexible production scenarios. It comprehensively solves the problems of poor pipe diameter adaptability, cumbersome adjustment, and accuracy defects caused by far-end vibration in traditional molds. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a multi-directional positioning tube cutting and stamping precision die proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the near-end clamping device of a multi-directional positioning tube cutting and stamping precision die proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of a multi-directional positioning precision die for tube cutting and stamping proposed in this utility model.

[0021] Figure 4 This is a schematic diagram illustrating the lifting principle of the moving plate of a multi-directional positioning precision die for tube cutting and stamping proposed in this utility model.

[0022] In the diagram: 1. Lower mold; 2. Side mounting chamber; 3. Electric telescopic rod; 4. Mounting plate; 5. Stamping knife; 6. Corresponding opening; 7. Hydraulic rod; 8. Fixing plate; 9. Sliding frame; 10. Distance marker; 11. Support plate; 12. Indicator; 13. Lifting block; 14. Proximal moving clamp; 15. Fixing block; 16. Proximal fixed clamp; 17. Flexible pad; 18. Connecting plate; 19. Distal fixed clamp; 20. Moving plate; 21. Distal moving clamp; 22. Threaded rod; 23. Nut pair; 24. Synchronous chain; 25. Handwheel. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 4 A multi-directional positioning tube cutting and stamping precision die includes a lower die 1, a stamping device on the lower die 1, a proximal clamping device inside the lower die 1, two fixed plates 8 fixedly installed on the lower die 1, a sliding frame 9 slidably installed on the fixed plate 8, a distal clamping device on the sliding frame 9, and a distance measuring device on the fixed plate 8.

[0025] The stamping device on the lower die 1 is mainly used to perform the stamping and cutting action of metal pipes.

[0026] The proximal clamping device inside the lower mold 1 and the distal clamping device on the fixed plate 8 form a double-end clamping system. The two fixed plates 8 constitute a guide rail frame. The sliding frame 9 provides a lateral displacement platform for the distal clamping. The measuring device realizes the visual adjustment of the cutting length.

[0027] The stamping device includes two side mounting chambers 2, which are fixedly installed on the lower mold 1. Each side mounting chamber 2 is equipped with an electric telescopic rod 3. The other end of the electric telescopic rod 3 is fixedly installed with a mounting plate 4. A stamping knife 5 is installed on the mounting plate 4. The lower mold 1 has a corresponding opening 6 at the corresponding position that corresponds to the stamping knife 5.

[0028] The stamping device drives the stamping blade 5 to perform synchronous cutting operations via symmetrically arranged electric telescopic rods 3 on both sides. The side mounting chamber 2 provides protection for the power unit, and the mounting plate 4 adopts a modular design for easy blade replacement. The corresponding opening 6 ensures that the stamping blade 5 forms a complete cut when it completes the penetration action. After being powered on, the electric telescopic rods 3 extend to push the stamping blade 5 to complete the shearing, which is suitable for precision cutting of materials such as stainless steel pipes and copper pipes. After the stamping blade 5 wears out, it can be disassembled and maintained separately, and the corresponding opening 6 and the inside of the lower die 1 need to be cleaned of metal debris regularly.

[0029] The proximal clamping device includes a fixed block 15 and a hydraulic rod 7. The fixed block 15 is fixedly installed inside the lower mold 1. Proximal fixed clamping plates 16 are fixedly installed on the fixed block 15 at equal intervals. The hydraulic rod 7 is installed on the lower mold 1. A lifting block 13 is fixedly installed on the side of the hydraulic rod 7 away from the lower mold 1. Proximal moving clamping plates 14 are fixedly installed on the lifting block 13 at equal intervals. The proximal moving clamping plates 14 are adapted to the proximal fixed clamping plates 16.

[0030] The proximal clamping device uses hydraulic drive to achieve rapid clamping. The fixed block 15 and the lifting block 13 form a static-dynamic combined clamping mechanism. The equidistantly arranged proximal fixed clamping plates 16 and proximal movable clamping plates 14 form a multi-point clamping layout, and the hydraulic rod 7 provides stable clamping force.

[0031] The remote clamping device includes a connecting plate 18 and a movable plate 20. The connecting plate 18 is fixedly installed on the sliding frame 9, and a remote fixed clamping plate 19 is fixedly installed on the connecting plate 18. The movable plate 20 is slidably installed on the sliding frame 9, and a remote movable clamping plate 21 is fixedly installed on the movable plate 20. The remote movable clamping plate 21 is adapted to the remote fixed clamping plate 19.

[0032] The remote clamping device achieves lateral adjustment through a sliding component. The connecting plate 18 and the moving plate 20 form a parallel mechanism with adjustable clamping spacing to ensure adaptive alignment for different pipe diameters.

[0033] Both sides of the sliding frame 9 are rotatably mounted with threaded rods 22. A synchronous chain 24 is installed between the two threaded rods 22 via a sprocket. Nut pairs 23 are threadedly mounted on both threaded rods 22. The nut pairs 23 are fixedly connected to the moving plate 20. A handwheel 25 is fixedly mounted on one of the threaded rods 22 through the corresponding sliding frame 9.

[0034] By turning the handwheel 25, the threaded rod 22 is rotated. With the help of the synchronous chain 24, the two threaded rods 22 rotate synchronously, which in turn pushes the nut pair 23 to drive the moving plate 20 to move horizontally, realizing the rapid and synchronous adjustment of the remote clamping device. The operation is simple and the precision is high.

[0035] Preferably, the sprocket and the synchronous chain 24 should be driven by a tooth or chain to ensure the transmission ratio and avoid slippage.

[0036] The proximal movable clamp 14 and the proximal fixed clamp 16 are arranged in a staggered manner, and the distal movable clamp 21 and the distal fixed clamp 19 are also arranged in a staggered manner.

[0037] The proximal moving clamp 14 and the proximal fixed clamp 16, the distal moving clamp 21 and the distal fixed clamp 19 are all V-shaped, and flexible pads 17 are inlaid on the surfaces of the four facing each other.

[0038] The V-shaped clamping plate structure is suitable for clamping pipes with different circular cross-sections, optimizing the use of the equipment. It can automatically center and provide uniform clamping force; the flexible pad 17 protects the surface of the pipe from scratches, while increasing friction and preventing slippage.

[0039] The distance measuring device includes a distance marker 10 and a support plate 11. The distance marker 10 is opened on the fixed plate 8, and the support plate 11 is slidably installed on the fixed plate 8. A pointer 12 is fixedly installed on the support plate 11, and the pointer 12 corresponds to the distance marker 10.

[0040] The starting length of distance marker 10 corresponds to the position of the corresponding port 6.

[0041] The distance marker 10 should be laser-etched to make the scale wear-resistant, and the scale system should be protected from oil stains.

[0042] By pushing the stop plate 11, the stop plate 11 is brought into contact with the end of the pipe. At this time, the scale corresponding to the indicator 12 can be read through the observation window. The starting zero point is aligned with the corresponding port 6 to achieve positioning without calculation. At this time, the length corresponding to the indicator 12 is the remaining length of the pipe after the cutting is completed, which is convenient for the operator to control.

[0043] The working process of this utility model is as follows: The metal pipe to be cut is placed in the processing area of ​​the lower mold 1, the proximal end of the pipe (the side closer to the stamping knife 5) is inserted between the proximal end fixed clamping plate 16 and the proximal end movable clamping plate 14, and the distal end (the side farther away from the stamping knife 5) is placed between the distal end fixed clamping plate 19 and the distal end movable clamping plate 21.

[0044] Push the stop plate 11 to slide along the fixed plate 8 so that the stop plate 11 contacts the end of the pipe. The pointer 12 directly displays the remaining pipe length (cutting length = total length - remaining length) on the distance mark 10. Since the zero point of the distance mark 10 is aligned with the corresponding opening 6 of the stamping knife 5, the operator can accurately set the cutting position without additional calculation.

[0045] Once the pipe reaches the required position, the hydraulic rod 7 is activated, pushing the lifting block 13 to descend vertically. The near-end moving clamp 14 and the near-end fixed clamp 16 adaptively clamp the pipe through the V-shaped clamping surface. The flexible pad 17 protects the pipe surface and increases friction. The staggered multi-point clamping effectively disperses stress and prevents the thin-walled pipe from deforming.

[0046] Rotating the handwheel 25 drives the double-sided threaded rods 22 to rotate synchronously via the synchronous chain 24. The nut pair 23 drives the moving plate 20 and the distal moving clamping plate 21 to slide horizontally, so that the V-shaped clamping plate adapts to the change of pipe diameter and completes the centering clamping. The distal clamping force and the proximal clamping force form a symmetrical balance.

[0047] Synchronous punching: Start the electric telescopic rod 3 to drive the punching knife 5 to advance towards the center of the pipe. After the punching knife 5 penetrates the pipe, it enters the corresponding opening 6 to form a complete cut. The symmetrical design offsets the shearing force on one side and reduces the risk of pipe twisting.

[0048] The V-shaped clamping plate of the remote clamping device and the flexible pad 17 form a buffer layer to absorb the impact vibration; the rigid synchronous linkage of the double-end clamping system further suppresses the transmission of remote vibration and ensures that the cut is flat and burr-free.

[0049] After cutting, the electric telescopic rod 3 resets the stamping knife 5, the hydraulic rod 7 rises to release the near-end clamp, and the handwheel 25 is rotated in the opposite direction to release the far-end clamp, so that the finished pipe can be taken out.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-directional positioning tube cutting and stamping precision die, comprising a lower die (1), characterized in that, The lower mold (1) is provided with a stamping device, the lower mold (1) is provided with a proximal clamping device, two fixed plates (8) are fixedly installed on the lower mold (1), a sliding frame (9) is slidably installed on the fixed plate (8), a distal clamping device is provided on the sliding frame (9), and a distance measuring device is provided on the fixed plate (8).

2. The multi-directional positioning tube cutting and stamping precision die according to claim 1, characterized in that, The stamping device includes two side mounting chambers (2) and is fixedly installed on the lower mold (1). Each of the two side mounting chambers (2) is provided with an electric telescopic rod (3). The other end of the electric telescopic rod (3) is fixedly installed with a mounting plate (4). A stamping knife (5) is installed on the mounting plate (4). The lower mold (1) has a corresponding opening (6) at the corresponding position corresponding to the stamping knife (5).

3. The multi-directional positioning tube cutting and stamping precision die according to claim 1, characterized in that, The proximal clamping device includes a fixed block (15) and a hydraulic rod (7). The fixed block (15) is fixedly installed inside the lower mold (1). Proximal fixing plates (16) are fixedly installed on the fixed block (15) at equal intervals. The hydraulic rod (7) is installed on the lower mold (1). A lifting block (13) is fixedly installed on the side of the hydraulic rod (7) away from the lower mold (1). Proximal moving plates (14) are fixedly installed on the lifting block (13) at equal intervals. The proximal moving plates (14) are adapted to the proximal fixing plates (16).

4. A multi-directional positioning tube cutting and stamping precision die according to claim 3, characterized in that, The remote clamping device includes a connecting plate (18) and a movable plate (20). The connecting plate (18) is fixedly installed on the sliding frame (9). A remote fixed clamping plate (19) is fixedly installed on the connecting plate (18). The movable plate (20) is slidably installed on the sliding frame (9). A remote movable clamping plate (21) is fixedly installed on the movable plate (20). The remote movable clamping plate (21) is adapted to the remote fixed clamping plate (19).

5. A multi-directional positioning tube cutting and stamping precision die according to claim 4, characterized in that, Both sides of the sliding frame (9) are rotatably mounted with threaded rods (22). A synchronous chain (24) is installed between the two threaded rods (22) via a sprocket. Nut pairs (23) are threadedly mounted on both threaded rods (22). The nut pairs (23) are fixedly connected to the moving plate (20). A handwheel (25) is fixedly mounted through the corresponding sliding frame (9) of one of the threaded rods (22).

6. A multi-directional positioning tube cutting and stamping precision die according to claim 4, characterized in that, The proximal movable clamp (14) and the proximal fixed clamp (16) are arranged in a staggered manner, and the distal movable clamp (21) and the distal fixed clamp (19) are also arranged in a staggered manner.

7. A multi-directional positioning tube cutting and stamping precision die according to claim 4, characterized in that, The proximal moving clamp (14) and the proximal fixed clamp (16), the distal moving clamp (21) and the distal fixed clamp (19) are all V-shaped, and flexible pads (17) are inlaid on the surfaces of the four facing each other.

8. A multi-directional positioning tube cutting and stamping precision die according to claim 1, characterized in that, The distance measuring device includes a distance marker (10) and a stop plate (11). The distance marker (10) is opened on a fixed plate (8). The stop plate (11) is slidably installed on the fixed plate (8). A pointer (12) is fixedly installed on the stop plate (11). The pointer (12) corresponds to the distance marker (10).

9. A multi-directional positioning tube cutting and stamping precision die according to claim 8, characterized in that, The starting length of the distance marker (10) corresponds to the position of the corresponding port (6).

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