An automatic cutting tool for corrugated pipe
By designing an automatic corrugated pipe cutting fixture, using a positioning switch and cylinder to control the cutter, and combining upper and lower pressure plates for clamping, the problem of low cutting accuracy of corrugated pipes was solved, achieving high-precision and safe automatic cutting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIHANG AUTO PARTS (JIASHAN) CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-07
AI Technical Summary
The cutting accuracy of corrugated pipes in the current technology is low, and it mainly relies on manual measurement, which leads to large errors.
An automatic corrugated pipe cutting fixture is adopted, including a base, a cutter, a positioning plate, and a cylinder. The positioning switch on the positioning plate controls the cylinder to push the cutter, ensuring accurate cutting length. The position of the fixing plate is adjusted by setting elongated holes on the positioning plate and threaded holes on the slide to meet the needs of corrugated pipes of different lengths. At the same time, the upper and lower pressure plates are used to clamp the corrugated pipe to prevent it from moving during cutting.
It improves the accuracy and safety of corrugated pipe cutting, reduces errors caused by manual measurement, adapts to different length cutting requirements, ensures a smooth cut, and prevents debris from flying everywhere.
Smart Images
Figure CN224464763U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of corrugated pipe processing, and in particular to an automatic corrugated pipe cutting fixture. Background Technology
[0002] Currently, corrugated pipes are widely used pipes. They feature a folded textured structure on their circumference, providing advantages such as pressure resistance, shock resistance, and good flexibility. After production, corrugated pipes need to be cut to appropriate lengths according to different application scenarios to facilitate further processing. Currently, corrugated pipe cutting is mostly done manually, with workers manually measuring the length, resulting in relatively low cutting accuracy.
[0003] Therefore, a new technical solution is needed to address the above problems. Utility Model Content
[0004] The purpose of this application is to provide an automatic corrugated pipe cutting fixture, which has the advantages of improving cutting accuracy and solves the problem of low cutting accuracy in existing manual corrugated pipe cutting.
[0005] This application provides an automatic corrugated pipe cutting fixture with the following technical solution: An automatic corrugated pipe cutting fixture includes a base, a cutter for cutting threaded pipes, and a cylinder mounted on the base for driving the cutter. A positioning plate is provided on the base, and the positioning plate is integrally formed with several protrusions for restricting the radial movement of the corrugated pipe. The protrusions respectively abut against both sides of the corrugated pipe. A positioning switch is provided on the positioning plate, and the triggering mechanism of the positioning switch can abut against the end of the corrugated pipe located between the protrusions. The positioning switch is electrically connected to the cylinder.
[0006] By adopting the above technical solution, a positioning plate with a positioning switch is installed on the base. When cutting the corrugated pipe, the positioning plate is adjusted to the corresponding position. After the positioning switch is triggered at the end of the corrugated pipe, the cutter cuts the corrugated pipe. The cutting length of the corrugated pipe is determined by the adjusted positioning plate, and the cylinder is controlled by the positioning switch to push the cutter. This prevents errors caused by manual measurement of the length by workers and improves cutting accuracy.
[0007] Optional: The upper surface of the positioning plate is provided with several elongated holes, the length direction of which is parallel to the corrugated pipe. A slide is fixed on the base, and two rows of threaded holes are formed at the upper end of the slide. The threaded holes are arranged along the length direction of the corrugated pipe, and fixing screws are inserted into each of the elongated holes, with the fixing screws threadedly engaging with the threaded holes.
[0008] By adopting the above technical solution, elongated holes are made in the positioning plate, each containing a fixing screw, and a slide is mounted on the base. Two rows of threaded holes are formed at the upper end of the slide. When adjusting the positioning plate, the fixing screws are inserted into different threaded holes, and the position of the fixing screws within the elongated holes is adjusted left or right to change the position of the positioning plate. This increases the adjustment range of the positioning plate and is suitable for cutting corrugated pipes of different lengths.
[0009] Optionally, a fixing mechanism is provided on the base, the fixing mechanism including an upper pressure plate, a lower pressure plate, and a slider. The slider is connected to the piston rod of the cylinder, the lower pressure plate is fixed to the base, and a guide rod is fixed at the upper end of the upper pressure plate. The upper end of the guide rod passes through the slider and slides with the slider. An anti-detachment component is provided at the upper end of the guide rod, and the anti-detachment component can abut against the upper end of the slider.
[0010] By adopting the above technical solution, a lower pressure plate is fixed to the base, and an upper pressure plate is located above the lower pressure plate. A guide rod is installed at the upper end of the upper pressure plate, and the upper end of the guide rod passes through the slider and slides in cooperation with the slider. An anti-detachment component is provided at the upper end of the guide rod. When cutting the corrugated pipe, a positioning switch drives a cylinder to move the slider downwards, which in turn moves the upper pressure plate downwards. The upper and lower pressure plates clamp the corrugated pipe in the middle, preventing it from moving during cutting and ensuring cutting accuracy.
[0011] Optionally: A spring is fitted on the guide rod, with both ends of the spring abutting against the slider and the upper pressure plate, respectively.
[0012] By adopting the above technical solution, and by setting a spring on the guide rod, when cutting the corrugated pipe, the cylinder pushes the slider, the slider drives the upper pressure plate to move down, and after the upper pressure plate stops moving when it hits the corrugated pipe, the slider continues to move down, compressing the spring. The compressed spring presses the upper pressure plate tightly against the corrugated pipe, which can more effectively prevent the corrugated pipe from moving and improve the cutting accuracy.
[0013] Optionally: A guide post is fixed to the upper end of the lower pressure plate, and the upper end of the guide post passes through the upper pressure plate and the slider.
[0014] By adopting the above technical solution, a guide post is provided at the upper end of the lower pressure plate, passing through the upper pressure plate and the slider, so that the slider and the upper pressure plate move along a fixed trajectory.
[0015] Optionally: The cutter includes an upper cutter and a lower cutter. The upper cutter is mounted on the side wall of the slider and has an upper cutting edge for cutting at its lower end. The lower cutter is mounted on the side wall of the lower pressure plate and has a lower cutting edge for cutting at its upper end. The upper cutter and the lower cutter can abut against the vertical side wall of the bellows.
[0016] By adopting the above technical solution and setting up upper and lower cutters, the cut of the corrugated pipe is made smoother, thus improving the accuracy of corrugated pipe cutting.
[0017] Optionally, the cutter further includes a lower support plate with a groove at the upper end. The lower support plate is located on the side of the lower cutter away from the lower pressure plate, and there is a gap between the two. The upper cutter is located in the gap between the lower support plate and the lower cutter.
[0018] By adopting the above technical solution, the lower support plate and lower cutter set on both sides of the upper cutter prevent the upper cutter from deviating when cutting the corrugated pipe, thus improving the cutting accuracy.
[0019] Optionally, the upper pressure plate and the lower pressure plate are provided with a limiting groove on their opposite surfaces to limit the position of the bellows.
[0020] By adopting the above technical solution, limiting grooves are opened on the upper and lower pressure plates to prevent the corrugated pipe from moving between the upper and lower pressure plates during cutting, thereby improving the cutting accuracy.
[0021] Optional: A protective plate is installed on the base, the protective plate is arranged around the fixing mechanism, and the protective plate is provided with a conveying groove for the passage of the corrugated pipe.
[0022] By adopting the above technical solution, and by setting a protective plate around the fixing mechanism, the debris generated during the cutting of the corrugated pipe will not fly out, making the cutting process safer.
[0023] Optional: A counter is installed on the base, and the counter is electrically connected to the positioning switch.
[0024] By adopting the above technical solution, the number of corrugated pipes currently being cut can be seen intuitively through a counter installed on the base.
[0025] In summary, this application includes at least one of the following beneficial technical effects:
[0026] 1. This automatic corrugated pipe cutting fixture uses a positioning plate mounted on a base, with a positioning switch installed on the plate. When cutting the corrugated pipe, the positioning plate is adjusted to the corresponding position, and the positioning switch is triggered at the end of the corrugated pipe, causing the cutter to cut the pipe. The cutting length of the corrugated pipe is determined by the adjusted positioning plate, and a cylinder controlled by a point-position switch pushes the cutter, preventing errors caused by manual length measurement by the worker and improving cutting accuracy.
[0027] 2. By opening elongated holes in the positioning plate, fixing screws are inserted into each of the elongated holes, and a slide is mounted on the base. The upper end of the slide has two rows of threaded holes. When adjusting the positioning plate, the fixing screws are inserted into different threaded holes, and the position of the fixing screws in the elongated holes is adjusted left and right to adjust the position of the fixing plate. This increases the adjustment range of the fixing plate and is suitable for cutting corrugated pipes of different lengths. Attached Figure Description
[0028] Figure 1 This is a schematic diagram illustrating the overall structure of an embodiment of this application;
[0029] Figure 2 This is a schematic diagram illustrating the fixing mechanism in an embodiment of this application;
[0030] Figure 3 This is a schematic diagram illustrating the structure of the cutting device according to an embodiment of this application;
[0031] Figure 4 This is a schematic diagram illustrating the positioning plate structure in an embodiment of this application;
[0032] Figure 5 This is a schematic diagram illustrating the structure of the protective panel in an embodiment of this application;
[0033] Figure 6 This is a schematic diagram illustrating the structure of the protective panel in an embodiment of this application.
[0034] In the diagram, 1. Base; 2. Positioning plate; 3. Cutting device; 4. Cylinder; 5. Positioning switch; 6. Protrusion; 7. Slide table; 8. Triggering mechanism; 9. Long slot; 10. Fixing screw; 11. Fixing plate; 12. Base plate; 13. Threaded hole; 14. Guide block; 15. Guide rod; 16. Spring; 17. Guide column; 18. Limiting groove; 19. Fixing mechanism; 20. Anti-detachment component; 21. Upper cutter; 22. Lower cutter; 23. Lower support plate; 24. Cylinder mounting plate; 25. Protective plate; 26. Solenoid valve; 27. Counter; 28. Clearance hole; 29. Discharge chute; 30. Clearance groove; 191. Slider; 192. Upper pressure plate; 193. Lower pressure plate; 251. First protective plate; 252. Second protective plate; 253. Third protective plate. Detailed Implementation
[0035] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 This application will be described in further detail below.
[0036] One embodiment disclosed in this application is referred to... Figure 1 An automatic corrugated pipe cutting fixture includes a base 1, a fixing mechanism 19 for fixing the corrugated pipe, a cutting device 3 for cutting the corrugated pipe, and a positioning plate 2 for determining the length of the corrugated pipe.
[0037] The base 1 includes a horizontally placed base plate 12 and a fixing plate 11 vertically mounted on the base plate 12.
[0038] Reference Figure 1 , Figure 2 The fixing mechanism 19 includes a lower pressure plate 193, an upper pressure plate 192, and a slider 191. The lower pressure plate 193 is fixed to the base plate 12 with screws. The upper pressure plate 192 is located directly above the lower pressure plate 193. Semi-circular limiting grooves 18 for accommodating bellows are respectively formed on the surfaces of the upper pressure plate 192 and the lower pressure plate 193 that are close to each other. Two vertically upward guide rods 15 are installed on the side of the upper pressure plate 192 near the discharge direction of the bellows. The slider 191 passes through both guide rods 15. An anti-detachment component 20 is provided at the upper end of the guide rod 15. The lower surface of the anti-detachment component 20 can abut against the upper surface of the slider 191, so that the slider 191 will not detach when moving on the guide rod 15. The anti-detachment component 20 is fixed to the upper end of the guide rod 15 with screws. Springs 16 are respectively fitted on two guide rods 15 between the slider 191 and the upper pressure plate 192. The upper end of the spring 16 abuts against the lower end of the slider 191, and the lower end of the spring 16 abuts against the upper end of the upper pressure plate 192. Two guide posts 17 are fixedly installed above the lower pressure plate 193. The guide posts 17 pass upward through the upper pressure plate 192 and the slider 191, allowing the upper pressure plate 192 and the slider 191 to slide up and down along the guide rods 15. A cylinder mounting plate 24 is installed on the side wall of the fixing plate 11 facing the fixing mechanism 19. A cylinder 4 is installed on the cylinder mounting plate 24, located directly above the slider 191. The piston rod of the cylinder 4 is connected to the slider 191. A solenoid valve 23 for controlling the movement of the cylinder 4 is installed on the other side of the fixing plate 11 where the cylinder 4 is mounted. The solenoid valve 23 is connected to the cylinder 4 via an air pipe.
[0039] Reference Figure 1 , Figure 3 The cutting device 3 includes an upper cutter 21 and a lower cutter 22. The upper cutter 21 is bolted to the side wall of the slide block 191 in the direction of the corrugated pipe discharge, and a cutting edge is formed on the lower side of the upper cutter 21. The lower cutter 22 has a cutting edge at its upper end and is bolted to the side wall of the lower pressure plate 193 in the direction of the corrugated pipe discharge. The upper cutter 21 is located on the side of the lower cutter 22 away from the lower pressure plate 193, and the vertical side walls of the upper cutter 21 and the lower cutter 22 abut against each other. A lower support plate 23 is installed on the side of the lower cutter 22 away from the lower pressure plate 193. A slot is provided at the upper end of the lower support plate 23. A boss 27 is integrally formed on the lower end of the lower support plate 23 near the lower pressure plate 193. The width of the boss 27 is the same as that of the upper cutter 21. The lower support plate 23 is fixed to the side wall of the lower cutter 22 away from the fixing mechanism 19 by bolts. The lower support plate 23 is located on the side of the upper cutter 21 away from the lower cutter 22. The upper cutter 21 is located between the lower support plate 23 and the lower cutter 22.
[0040] Reference Figure 1 , Figure 4 A slide table 7 is provided below the positioning plate 2. The slide table 7 is fixedly installed on the base plate 12 and located on the side of the corrugated pipe discharge direction of the fixing mechanism 19. A guide block 14 is integrally formed on the upper end of the slide table 7 near the fixing plate 11. The positioning plate 2 is installed on the upper surface of the slide table 7. The side of the positioning plate 2 near the fixing plate 11 and the side of the guide block 14 away from the fixing plate 11 abut against each other. The positioning plate 2 can slide along the feeding direction of the corrugated pipe by relying on the guide block 14. An elongated hole 9 is opened on each side of the corrugated pipe on the upper surface of the positioning plate 2. Two rows of several threaded holes 13 are opened on the upper end of the slide table 7 along the movement direction of the corrugated pipe. The two elongated holes 8 are respectively located on the vertical plane of the two rows of threaded holes 10. The fixing screw 10 passes through the elongated holes 9 and the threaded holes 13 to fix the slide table 7 and the positioning plate 2. A positioning switch 5 is installed on the upper surface of the positioning plate 2 away from the cutting device 3. The triggering mechanism 8 of the positioning switch 5 is located on the movement path of the corrugated pipe and faces the fixing mechanism 19. The positioning switch 5 is electrically connected to the solenoid valve 26. The upper surface of the positioning plate 2 has two protrusions 6 formed on both sides of the corrugated pipe. The protrusions 6 on both sides are located at both ends of the elongated hole 9 in the length direction. The protrusions 6 are used to prevent the corrugated pipe from moving radially.
[0041] A counter 27 is installed on the fixed plate 11. The counter 27 is located on the same side as the cylinder 4. The counter 27 is electrically connected to the positioning switch 5. When the positioning switch 5 is triggered, the counter 27 records the number.
[0042] Reference Figure 6 A first protective plate 251, a second protective plate 252, and a third protective plate 253 are installed on the base plate 12. The first protective plate 251 is located on the side of the lower support plate 23 away from the upper cutter 21, between the lower support plate 23 and the positioning plate 2. A U-shaped discharge chute 29 is opened on the side of the first protective plate 251 away from the fixing plate 11. The discharge chute 29 is located on the same horizontal plane as the corrugated pipe, and its opening faces away from the fixing plate 11. The second protective plate 252 is located on the side of the fixing mechanism 19 away from the cutter 3. A clearance hole 28 for the corrugated pipe to pass through is opened on the second protective plate 252. The third protective plate 253 is located on the side of the fixing mechanism 19 away from the fixing plate 11. A clearance groove 30 is opened at the lower end of the third protective plate 253 near the discharge direction of the corrugated pipe. The protective plates 251 and the fixing plate 11 surround the fixing mechanism 19 in the middle. The protective plates 251 are connected to each other by bolts.
[0043] The implementation principle of this embodiment is as follows: the positioning plate 2 is moved to the cutting length and fixed to the slide table 7 by the fixing screw 10. The bellows is passed through the second protective plate 252 and sent into the fixing mechanism 19. When the bellows touches the positioning switch 5, the triggering mechanism 8 of the positioning switch 5 is triggered. The positioning switch 5 sends a signal to the solenoid valve 26. The solenoid valve 26 controls the cylinder 4 to push the slider 191 downward. The slider 191 moves down, causing the upper pressure plate 192 and the upper cutter 21 to move down. The upper pressure plate 192 first presses on the threaded tube. The upper pressure plate 192 is blocked and stops moving. The slider 191 continues to drive the upper cutter 21 to move down. The spring 16 is compressed, forcing the upper pressure plate 192 to press the bellows tightly in the semi-circular groove. The slider 191 drives the upper cutter 21 to move down until the bellows is cut off. The cut corrugated pipe is removed, and the trigger mechanism 8 of the positioning switch 5 returns to its original position. The positioning switch 5 sends a signal to the solenoid valve 26, which controls the cylinder 4 to reset. The cylinder 4 then moves the upper cutter 21 and the upper pressure plate 192 upwards. The counter 27 displays the number of corrugated pipes that have been cut, and the protective plate 25 prevents debris from cutting the corrugated pipe from injuring the operator.
[0044] The embodiments described in this specific implementation are 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. An automatic corrugated pipe cutting fixture, comprising a base (1), a cutting device (3) for cutting threaded pipes, a cylinder (4) mounted on the base (1) for driving the cutting device (3), and a solenoid valve (26) mounted on the base (1) and connected to the cylinder (4) via an air pipe, characterized in that: A positioning plate (2) is provided on the base (1). The positioning plate (2) is integrally formed with a plurality of protrusions (6) for restricting the radial movement of the bellows. The protrusions (6) abut against both sides of the bellows. A positioning switch (5) is provided on the positioning plate (2). The triggering mechanism (8) of the positioning switch (5) can abut against the end of the bellows located between the protrusions (6). The positioning switch (5) is electrically connected to the solenoid valve (26).
2. The automatic corrugated pipe cutting fixture according to claim 1, characterized in that: The upper surface of the positioning plate (2) is provided with several elongated holes (9), the length direction of the elongated holes (9) is parallel to the corrugated pipe, a slide (7) is fixed on the base (1), and several rows of threaded holes (13) are formed at the upper end of the slide (7). The threaded holes (13) are arranged along the length direction of the corrugated pipe, and a fixing screw (10) is inserted in each of the elongated holes (9). The fixing screw (10) passes through the elongated hole (9) and is threaded into the threaded hole (13).
3. The automatic corrugated pipe cutting fixture according to claim 1, characterized in that: A fixing mechanism (19) is provided on the base (1). The fixing mechanism (19) includes an upper pressure plate (192), a lower pressure plate (193), and a slider (191). The slider (191) is connected to the piston rod of the cylinder (4). The lower pressure plate (193) is fixed on the base (1). A guide rod (15) is fixed at the upper end of the upper pressure plate (192). The upper end of the guide rod (15) passes through the slider (191) and slides with the slider (191). An anti-detachment component (20) is provided at the upper end of the guide rod (15). The anti-detachment component (20) can abut against the upper end of the slider (191).
4. The automatic corrugated pipe cutting fixture according to claim 3, characterized in that: A spring (16) is fitted on the guide rod (15), and the two ends of the spring (16) abut against the slider (191) and the upper pressure plate (192) respectively.
5. The automatic corrugated pipe cutting fixture according to claim 3, characterized in that: The upper end of the lower pressure plate (193) is fixed with a guide post (17), and the upper end of the guide post (17) passes through the upper pressure plate (192) and the slider (191).
6. The automatic corrugated pipe cutting fixture according to claim 5, characterized in that: The cutting device (3) includes an upper cutter (21) and a lower cutter (22). The upper cutter (21) is installed on the side wall of the slider (191). The lower end of the upper cutter (21) is provided with a cutting edge for cutting. The lower cutter (22) is installed on the side wall of the lower pressure plate (193). The upper end of the lower cutter (22) is provided with a cutting edge for cutting. The upper cutter (21) and the lower cutter (22) are perpendicular to the bellows and the vertical side wall can abut against each other.
7. The automatic corrugated pipe cutting fixture according to claim 6, characterized in that: The cutter also includes a lower support plate (23), the upper end of which has a groove. The lower support plate (23) is located on the side of the lower cutter (22) away from the lower pressure plate (193) and there is a gap between them. The upper cutter (21) is located in the gap between the lower support plate (23) and the lower cutter (22).
8. The automatic corrugated pipe cutting fixture according to claim 3, characterized in that: The upper pressure plate (192) and the lower pressure plate (193) have a limiting groove (18) on their opposite surfaces to limit the position of the bellows.
9. The automatic corrugated pipe cutting fixture according to claim 1, characterized in that: A protective plate (25) is installed on the base (1), and the protective plate (25) is arranged around the fixing mechanism (19). The protective plate (25) is provided with a conveying groove for the passage of the corrugated pipe.
10. The automatic corrugated pipe cutting fixture according to claim 1, characterized in that: A counter (27) is installed on the base (1), and the counter (27) is electrically connected to the positioning switch (5).