A corrugated pipe cutting machine

Abstract

The present invention belongs to the technical field of corrugated tube cutting, and specifically is a corrugated tube cutting machine, comprising a limit frame, a rotating ring is rotatably connected inside the limit frame, a lifting assembly is fixedly connected to the outside of the rotating ring, a sliding block is fixedly connected to the output end of the lifting assembly, the sliding block passes through the rotating ring, a cutting assembly is fixedly connected to the side of the sliding block away from the lifting assembly, the cutting assembly is used to cut the corrugated tube, and the lifting assembly is used to drive the cutting assembly to lift and lower, a plurality of limit assemblies are arranged in a circular shape on both sides of the limit frame and on the outer circumference of the rotating ring, and the limit assemblies can automatically limit the different types of corrugated tubes to be cut; by setting the limit assembly, it can be automatically adjusted to adapt to different types of corrugated tubes, thereby achieving the effect of not needing to manually adjust the cutting machine program when switching the corrugated tube, improving the factory's automation productivity, and preventing the occurrence of production risks.

Description

Technical Field

[0001] The invention belongs to the technical field of corrugated pipe cutting, in particular to a corrugated pipe cutting machine. Background Art

[0002] Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the folding and telescopic direction. The open end of the bellows is fixed, the sealed end is in a free state, and an auxiliary spiral spring or reed is used to increase the elasticity. Most bellows are made of one-piece die-casting, so after production is completed, they need to be cut according to size, which requires the use of a bellows cutting machine.

[0003] The existing corrugated pipe cutting machines need to set up multiple programs when in use, taking into account the different types of corrugated pipes. When switching the type of corrugated pipe, the program of the cutting machine must also be switched accordingly. Otherwise, processing accidents are likely to occur, resulting in material waste at the least and machine failure at the worst. The program switching is generally performed by workers, and errors are inevitable, thus affecting the company's production.

[0004] To this end, the present invention provides a corrugated tube cutting machine. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a corrugated pipe cutting machine described in the present invention comprises a limit frame, a rotating ring is rotatably connected inside the limit frame, a lifting assembly is fixedly connected to the outside of the rotating ring, a sliding block is fixedly connected to the output end of the lifting assembly, the sliding block passes through the rotating ring, a cutting assembly is fixedly connected to the side of the sliding block away from the lifting assembly, the cutting assembly is used to cut the corrugated pipe, and the lifting assembly is used to drive the cutting assembly to lift and lower, and a plurality of limit assemblies are arranged on both sides of the limit frame and on the outer circumference of the rotating ring, and the limit assembly can automatically limit the different types of corrugated pipes to be cut; when working, the processed corrugated pipe passes through the inside of the limit frame, and then is limited by the limit assembly. When the model of the corrugated pipe is switched, the limit assembly can also be automatically adjusted to adapt to different models of corrugated pipes, thereby achieving the effect that there is no need to manually adjust the cutting machine program when switching the corrugated pipe, thereby improving the factory's automation productivity and preventing the occurrence of production risks.

[0007] Preferably, the cutting assembly includes a pair of sliding rods, the pair of sliding rods are fixedly connected to one end of the sliding block close to and away from the cutting assembly, the end of the sliding rod away from the sliding block is slidably connected to a support rod, the end of the support rod away from the sliding rod is fixedly connected to a mounting plate, an infrared sensor is fixedly connected to the bottom surface of the mounting plate, a cutting blade is rotatably connected inside the mounting plate, and an extrusion spring is fixedly connected between the mounting plate and the sliding rod and outside the support rod; during operation, during specific cutting, the lifting assembly drives the sliding block to move, and the movement of the sliding block drives the cutting assembly to gradually approach the corrugated tube, thereby pressing the cutting blade to cut the corrugated tube.

[0008] Preferably, a pair of electric grinding rods are fixedly connected to one side of the sliding rod close to the mounting plate and located outside the support rod, and a whetstone is fixedly connected to one end of the electric grinding rod away from the sliding rod, and a grinding groove matching the cutting edge of the cutting blade is provided inside the whetstone; when working, the cutting blade contacts the grinding groove provided inside the whetstone, so that the cutting blade can be polished by the whetstone during the subsequent cutting process, thereby realizing automatic maintenance of the cutting blade.

[0009] Preferably, the limit assembly includes a guide rod, one end of the guide rod close to the limit frame is rotatably connected to an adjusting rod, an adjusting assembly is provided outside the adjusting rod, and the adjusting assembly is used to adjust the angle of the adjusting rod relative to the limit frame; when working, the adjusting assembly is started to adjust the angle of the adjusting rod, and then adjust the position of the guide rod, so that the multiple guide rods gradually gather toward the center direction of the limit frame until the guide rods are in contact with the corrugated tube.

[0010] Preferably, the adjusting assembly includes a mounting frame, the adjusting rod is rotatably connected to the inside of the mounting frame, an adjusting slot is provided at one end of the adjusting rod away from the guide rod, a rotating screw is arranged inside the adjusting slot, and a transmission assembly is fixedly connected to one end of the rotating screw close to the limit frame, and a lifting assembly is threadedly connected to the outside of the rotating screw, and the lifting assembly is used to lift the adjusting rod to adjust the angle; when working, the transmission assembly is started, the transmission assembly rotates to drive the rotating screw to rotate, and the rotating screw rotates to drive the lifting assembly outside it to move, and the lifting assembly runs to push the adjusting rod to rotate with the axis center of the connection with the mounting frame as the center of the circle, and the adjusting rod rotates to push the guide rod to rotate, thereby completing the adjustment of the guide rod angle and realizing the opening and closing of multiple guide rods.

[0011] Preferably, the lifting assembly includes a lifting platform threadedly connected to the rotating screw, and a pair of adjusting wheels are rotatably connected to the side of the lifting platform close to the adjusting rod, and the spacing between the pair of adjusting wheels is equal to the width of the adjusting groove; when working, when the rotating screw rotates, the lifting platform outside it will slide accordingly, and the sliding of the lifting platform will drive the adjusting wheel to move, and the movement of the adjusting wheel will push the adjusting rod to adjust the angle, and the wheel-shaped design of the adjusting wheel can effectively reduce the friction when pushing the adjusting rod, reduce the load of the lifting platform, improve efficiency and make it more stable.

[0012] Preferably, the transmission assembly includes a rotating disk, which is fixedly connected to a rotating screw, and a plurality of magnetic meshing teeth are slidably connected inside the rotating disk, a telescopic spring is fixedly connected between the rotating disk and the magnetic meshing teeth, and an electromagnet adapted to the magnetic meshing teeth is inserted inside the rotating screw; when working, the electromagnet inside the rotating screw starts to operate and generate magnetism, thereby exerting a repulsive force on the magnetic meshing teeth. Under the action of the repulsive force, the magnetic meshing teeth stretch the telescopic spring and extend from the inside of the rotating disk, and mesh with the hollow gear outside the rotating ring. In this way, by driving the rotating ring to rotate, multiple rotating disks can be driven to rotate together, thereby achieving a synchronous adjustment effect.

[0013] Preferably, limit slide bars are provided on both sides of the rotating screw, a pair of the limit slide bars pass through the lifting platform and are fixedly connected to the limit frames, and a plurality of magnetic spring sheets are fixedly connected inside the limit slide bars; during operation, the limit slide bars are provided so that the lifting platform will not rotate along with the rotating screw during the rotation of the rotating screw, thereby limiting it, and when the electromagnet inside the rotating screw is energized, the magnetic spring sheets will be subjected to repulsive force at the same time, thereby bending and shrinking into the interior of the limit slide bars, thereby not affecting the lifting of the lifting platform, and after the electromagnet inside the rotating screw loses power, the magnetic spring sheets pop out to support and limit the lifting platform, thereby preventing the lifting platform from sliding due to factors such as gravity or vibration.

[0014] Preferably, a sliding frame is fixedly connected to the side of the mounting frame away from the limiting frame, and a pair of electric telescopic rods are slidably connected inside the sliding frame, and one end of the electric telescopic rod away from the sliding frame is rotatably connected to the inside of the guide rod, and one of the electric telescopic rods is rotatably connected to the end of the guide rod close to the adjusting rod; when working, when the ends of the guide rod and the adjusting rod are in contact with the bellows, the electric telescopic rod at this location will receive a signal and be locked and no longer telescoped. At the same time, the system will also know the telescopic data of the electric telescopic rod at this location, and then synchronously adjust the telescopic length of the other electric telescopic rod, so that the axis center of the guide rod and the limiting frame are level, completing the fitting operation on the bellows and improving the supporting effect.

[0015] Preferably, a pressure sensor is fixedly connected to the guide rod on one side close to the center of the limit frame and at a position corresponding to the electric telescopic rod; during operation, when the ends of the guide rod and the adjusting rod are in contact with the bellows, the pressure sensor will obtain a pressure signal, thereby sending a system signal to the electromagnet and the electric telescopic rod.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The corrugated pipe cutting machine described in the present invention can automatically adjust to adapt to different corrugated pipe models by setting a limit component, thereby achieving the effect of not needing to manually adjust the cutting machine program when switching corrugated pipes, thereby improving the factory's automated productivity and preventing the occurrence of production risks.

[0018] 2. The corrugated pipe cutting machine described in the present invention is equipped with a whetstone so that the cutting blade contacts the grinding groove provided inside the whetstone. Thus, the cutting blade can be grinded by the whetstone during the subsequent cutting process, thereby realizing automatic maintenance of the cutting blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the limiting frame in the present invention;

[0022] Figure 3 It is another perspective schematic diagram of the structure of the limit frame in the present invention;

[0023] Figure 4 It is a schematic diagram of the rotating ring structure in the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the adjusting rod in the present invention;

[0025] Figure 6 It is a schematic diagram of the rotating screw structure of the present invention;

[0026] Figure 7 It is a cross-sectional view of the transmission assembly structure in the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the lifting assembly in the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of the cutting assembly in the present invention;

[0029] Fig.10 It is a schematic diagram of the structure of the magnetic spring piece in the present invention.

[0030] In the figure: 1. limit frame; 2. rotating ring; 3. lifting assembly; 4. sliding block; 5. cutting assembly; 501. sliding rod; 502. supporting rod; 503. mounting plate; 504. cutting blade; 505. extrusion spring; 6. electric grinding rod; 7. whetstone; 8. guide rod; 9. adjusting rod; 10. mounting frame; 11. transmission assembly; 1101. rotating disk; 1102. magnetic meshing teeth; 1103. telescopic spring; 12. lifting platform; 13. limit sliding rod; 1301. magnetic spring; 14. adjusting wheel; 15. sliding frame; 16. electric telescopic rod; 17. pressure sensor; 18. rotating screw. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] like Figures 1 to 4As shown, a corrugated pipe cutting machine described in an embodiment of the present invention comprises a limit frame 1, wherein the limit frame 1 is internally rotatably connected with a rotating ring 2, the rotating ring 2 is externally fixed with a lifting assembly 3, the output end of the lifting assembly 3 is fixedly connected with a sliding block 4, the sliding block 4 passes through the rotating ring 2, and the sliding block 4 is fixedly connected with a cutting assembly 5 on a side away from the lifting assembly 3, the cutting assembly 5 is used for cutting the corrugated pipe, and the lifting assembly 3 is used for driving the cutting assembly 5 to move up and down, and a plurality of limit assemblies are arranged on both sides of the limit frame 1 and on the outer circumference of the rotating ring 2, and the limit assemblies can automatically limit the different types of corrugated pipes to be cut; when working, the currently existing corrugated pipe cutting machine takes into account the different types of corrugated pipes when in use. When the model of the bellows is switched, the program of the cutting machine must be switched accordingly. Otherwise, processing accidents are likely to occur, which may result in material waste or machine failure. The program switching is generally performed by workers, and errors are inevitable, which affects the production of the enterprise. When using the embodiment of the present invention, during specific production, the processed bellows is first passed through the interior of the limiting frame 1, and then limited by the limiting component. When the model of the bellows is switched, the limiting component can also be automatically adjusted to adapt to different models of bellows, thereby achieving the effect of not having to manually adjust the cutting machine program when switching the bellows, thereby improving the factory's automation productivity and preventing the occurrence of production risks. At the same time, it is necessary It is to be noted that, as shown in the attached drawings, hollow gears are fixedly connected to both sides of the rotating ring 2, and a slot matching the hollow gear is provided inside the limiting frame 1. During the specific installation, the hollow gear will pass through the slot and be exposed on the surface of the limiting frame 1. At this time, a motor and a gear set can be installed on the limiting frame 1 to mesh with it, so as to drive the hollow gear to rotate, thereby driving the rotating ring 2 to rotate. The motor and the gear set are prior art and are not shown in the attached drawings of the present invention. After the bellows is limited by the limiting assembly, the motor is started to drive the rotating ring 2 to rotate. During this process, the position of the sliding block 4 is adjusted by the lifting assembly 3 to make it close to the body of the bellows. Finally, the bellows is cut by the cutting assembly 5, thereby completing the effect of automatic cutting operation. At the same time It should be noted that the lifting component 3 is mainly used to drive the cutting component 5 to perform linear reciprocating motion. This part of the prior art is already quite mature, and this application will not describe it in detail. As an optional solution, the lifting component 3 can be in the form of a servo motor fixedly connected to a threaded rod, which is rotatably connected to the sliding block 4 through the threaded rod, and is equipped with a limit rod that passes through the sliding block 4. The lifting operation of the sliding block 4 can be achieved by rotating the servo motor. Furthermore, a visual system can be installed on the limit frame 1 to complete the cutting positioning of the corrugated pipe joint and complete precise cutting. This part is the prior art, and this application will not go into details. It should also be noted that during specific use, the lifting component 3 needs to be fixed in a suitable position according to actual working conditions.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 , Fig. 9 As shown, the cutting assembly 5 includes a pair of sliding rods 501, and the pair of sliding rods 501 are fixedly connected to one end of the sliding block 4 close to and away from the cutting assembly 5, and the end of the sliding rod 501 away from the sliding block 4 is slidably connected to a support rod 502, and the end of the support rod 502 away from the sliding rod 501 is fixedly connected to a mounting plate 503, and an infrared sensor is fixedly connected to the bottom surface of the mounting plate 503, and a cutting blade 504 is rotatably connected inside the mounting plate 503, and an extrusion spring 505 is fixedly connected between the mounting plate 503 and the sliding rod 501 and outside the support rod 502; during operation, during specific cutting, the lifting assembly 3 drives the sliding block 4 to move, and the movement of the sliding block 4 drives the cutting assembly 5 to gradually approach the corrugated pipe, and at this time the cutting blade 504 will gradually contact the corrugated pipe , and then the bellows will apply a reaction force to the cutting blade 504. Under the action of this force, the cutting blade 504 will push the mounting plate 503 to compress the extrusion spring 505, and then push the support rod 502 to slide inside the sliding rod 501, so that the pressure between the cutting blade 504 and the bellows gradually increases, thereby forcing the cutting blade 504 to cut the bellows. At the same time, the distance between the mounting plate 503 and the bellows can be measured by the infrared sensor installed on the mounting plate 503, so as to determine whether the cutting blade 504 is inserted into the inside of the bellows. After confirming that the cutting blade 504 is inserted into the inside of the bellows, the rotating ring 2 starts to rotate, thereby driving the cutting blade 504 to rotate to complete the ring cutting operation; by setting a pair of cutting components 5, the success rate of one-time cutting can be ensured.

[0034] like Fig. 9 As shown, a pair of electric grinding rods 6 are fixedly connected to one side of the sliding rod 501 close to the mounting plate 503 and located outside the support rod 502, and a whetstone 7 is fixedly connected to one end of the electric grinding rod 6 away from the sliding rod 501, and a grinding groove adapted to the cutting edge of the cutting blade 504 is provided inside the whetstone 7; during operation, after cutting a large number of corrugated tubes, the cutting edge of the cutting blade 504 will inevitably become blunt, and at this time, the cutting blade 504 is difficult to insert into the interior of the corrugated tube, thereby increasing the compression of the extrusion spring 505, and when the compression of the extrusion spring 505 increases to a certain value, the cutting blade 504 will contact with the grinding groove provided inside the whetstone 7, so that the cutting blade 504 can be polished by the whetstone 7 during the subsequent cutting process, thereby realizing automatic maintenance of the cutting blade 504; it should be noted that the lifting and lowering of the electric grinding rod 6 is also controlled by setting a timing program, thereby realizing the effect of automatic timing maintenance.

[0035] like Figures 1 to 6 As shown, the limit assembly includes a guide rod 8, and the end of the guide rod 8 close to the limit frame 1 is rotatably connected to an adjustment rod 9, and an adjustment assembly is arranged outside the adjustment rod 9, and the adjustment assembly is used to adjust the angle of the adjustment rod 9 relative to the limit frame 1; when working, when switching the bellows model, it should be noted that the bellows manufacturing machine needs to give the cutting machine a reset signal to return it to its initial state, and in the initial state, after the bellows enters the interior of the limit frame 1, it will first be placed between multiple groups of guide rods 8. At this time, the guide rod 8 will not fit tightly with the bellows, and then the adjustment assembly is started to adjust the adjustment rod 9. The angle of the guide rod 8 is adjusted, and then the position of the guide rod 8 is adjusted, so that the multiple guide rods 8 gradually gather toward the center direction of the limit frame 1 until the guide rod 8 is in contact with the corrugated tube, so that the effect of automatically clamping corrugated tubes of different sizes is achieved. There is no need to manually adjust the program, only the system needs to give a reset signal, which greatly reduces the situation of manual debugging of erroneous programs and reduces production accidents; at the same time, because the multiple guide rods 8 gather toward the center direction of the limit frame 1 at the same time, and the multiple limit assemblies are arranged in a circular shape, the axis of the clamped corrugated tube can be aligned with the axis of the limit frame 1, so the cutting accuracy can be improved.

[0036] like Figures 1 to 6 As shown, the adjusting assembly includes a mounting frame 10, the adjusting rod 9 is rotatably connected to the inside of the mounting frame 10, an adjusting slot is provided at one end of the adjusting rod 9 away from the guide rod 8, a rotating screw 18 is arranged inside the adjusting slot, and a transmission assembly 11 is fixedly connected to one end of the rotating screw 18 close to the limit frame 1, and a lifting assembly is threadedly connected to the outside of the rotating screw 18, and the lifting assembly is used to lift the adjusting rod 9 to adjust the angle; during operation, when it is necessary to adjust the opening and closing of the guide rod 8, the transmission assembly 11 is first started, and the transmission assembly 11 rotates to drive the rotating screw 18 to rotate, and the rotating screw 18 rotates to drive the lifting assembly outside it to move, and the lifting assembly runs to push the adjusting rod 9 to rotate around the axis of the connection with the mounting frame 10 as the center of the circle, and the adjusting rod 9 rotates to push the guide rod 8 to rotate, thereby completing the adjustment of the angle of the guide rod 8 and realizing the opening and closing of multiple guide rods 8.

[0037] like Figures 1 to 6As shown, the lifting assembly includes a lifting platform 12 threadedly connected to a rotating screw 18, and a pair of adjusting wheels 14 are rotatably connected to the side of the lifting platform 12 close to the adjusting rod 9, and the spacing between the pair of adjusting wheels 14 is equal to the width of the adjusting groove; when working, when the rotating screw 18 rotates, the lifting platform 12 outside it will slide accordingly, and the sliding of the lifting platform 12 will drive the adjusting wheel 14 to move, and the movement of the adjusting wheel 14 will push the adjusting rod 9 to adjust the angle. The wheel-shaped design of the adjusting wheel 14 can effectively reduce the friction when pushing the adjusting rod 9, reduce the load of the lifting platform 12, and improve efficiency while being more stable.

[0038] like Figures 1 to 7 As shown, the transmission assembly 11 includes a rotating disk 1101, the rotating disk 1101 is fixedly connected to the rotating screw 18, a plurality of magnetic meshing teeth 1102 are slidably connected inside the rotating disk 1101, a telescopic spring 1103 is fixedly connected between the rotating disk 1101 and the magnetic meshing teeth 1102, and an electromagnet adapted to the magnetic meshing teeth 1102 is inserted inside the rotating screw 18; when working, it should be noted that after the cutting machine receives the reset signal, the electromagnet inside the rotating screw 18 starts to operate to generate magnetism, thereby The magnetic meshing teeth 1102 exert a repulsive force, and under the action of the repulsive force, the magnetic meshing teeth 1102 stretch the telescopic spring 1103 to extend from the inside of the rotating disk 1101 and mesh with the hollow gear on the outside of the rotating ring 2. In this way, by driving the rotating ring 2 to rotate, multiple rotating disks 1101 can be driven to rotate together to achieve the effect of synchronous adjustment; it should be noted that during the rotation of the rotating ring 2, the lifting assembly 3 will not operate, and after the adjustment is completed, the electromagnet inside the rotating screw 18 will also lose power, so that the magnetic meshing teeth 1102 are separated from the hollow gear.

[0039] like Figures 1 to 7 , Fig.10As shown, both sides of the rotating screw 18 are provided with limiting slide bars 13, a pair of the limiting slide bars 13 are all through the lifting platform 12 and are fixedly connected to the limiting frame 1, and a plurality of magnetic spring pieces 1301 are fixedly connected inside the limiting slide bars 13; during operation, by providing the limiting slide bars 13, the lifting platform 12 will not rotate along with the rotating screw 18 during the rotation process, thereby limiting it, and when the electromagnet inside the rotating screw 18 is energized, the magnetic spring pieces 1301 will be subjected to repulsive force at the same time, thereby bending and shrinking into the inside of the limiting slide bars 13, thereby not affecting the lifting of the lifting platform 12, and inside the rotating screw 18 After the electromagnet loses power, the magnetic spring piece 1301 pops out to support and limit the lifting platform 12, thereby preventing the lifting platform 12 from sliding due to factors such as gravity or vibration; it should also be noted that the magnetic interference between the magnetic meshing teeth 1102 and the magnetic spring piece 1301 should be taken into account during the design, that is, the magnetic material inside the magnetic meshing teeth 1102 should be installed as close to the axis of the rotating disk 1101 as possible during the design, and the rotating disk 1101 should also appropriately use magnetic isolation materials. At the same time, the electromagnet inside the rotating screw 18 should be passed into the interior of the rotating disk 1101 to avoid magnetic interference with the magnetic spring piece 1301.

[0040] like Figures 1 to 7 As shown, a sliding frame 15 is fixedly connected to one side of the mounting frame 10 away from the limiting frame 1, and a pair of electric telescopic rods 16 are slidably connected inside the sliding frame 15. One end of the electric telescopic rod 16 away from the sliding frame 15 is rotatably connected to the inside of the guide rod 8, and one of the electric telescopic rods 16 is rotatably connected to the end of the guide rod 8 close to the adjusting rod 9. When working, when the adjusting rod 9 adjusts the guide rod 8 to clamp the corrugated pipe, it cannot be guaranteed that the guide rod 8 and the corrugated pipe are always in the same horizontal plane. In fact, the ends of the guide rod 8 and the adjusting rod 9 will often contact the corrugated pipe first. When the ends of the guide rod 8 and the adjusting rod 9 contact the corrugated pipe, , the electric telescopic rod 16 at that location will receive a signal and be locked and no longer extend or retract. At the same time, the system will also learn the extension and retraction data of the electric telescopic rod 16 at that location, and then synchronously adjust the extension and retraction length of the other electric telescopic rod 16, so that the axis of the guide rod 8 and the limit frame 1 are level, completing the fitting operation of the corrugated tube and improving the supporting effect; it should be noted that, in the initial state, the electric telescopic rod 16 can be stretched and retracted by external force; and through the sliding design of the sliding frame 15 and the electric telescopic rod 16, the electric telescopic rod 16 can slide along the sliding frame 15 during the adjustment of the guide rod 8, thereby not affecting the rotation of the guide rod 8.

[0041] like Figures 1 to 7As shown, a pressure sensor 17 is fixedly connected to the guide rod 8 at a side close to the center of the limit frame 1 and at a position corresponding to the electric telescopic rod 16; when working, when the ends of the guide rod 8 and the adjusting rod 9 are in contact with the bellows, the pressure sensor 17 will obtain a pressure signal, thereby sending a system signal to the electromagnet and the electric telescopic rod 16, and by setting a pair of pressure sensors 17 and comparing the pressure data of the two pressure sensors 17, the actual pressure of the guide rod 8 on the bellows can be known, so that the pressure can be adjusted by controlling the rotation of the rotating ring 2 to avoid deformation of the bellows due to excessive pressure, thereby completing the clamping operation of the bellows.

[0042] Working principle: The existing bellows cutting machine, when in use, takes into account the different types of bellows, it is necessary to set multiple programs. When switching the type of bellows, the program of the cutting machine must be switched accordingly, otherwise processing accidents are likely to occur, which may result in material scrapping or machine failure. The program switching is generally operated by workers, and it is inevitable that errors will occur, which will affect the production of the enterprise. When using the embodiment of the present invention, in specific production, the processed bellows is first passed through the inside of the limit frame 1, and then it is limited by the limit component. When switching the type of the bellows, the limit component can also be automatically adjusted to adapt to different types of bellows, thereby achieving the effect of not having to manually adjust the cutting machine program when switching the bellows, improving the factory's automated productivity and preventing the occurrence of production risks. At the same time, it should be noted that as shown in the accompanying drawings, hollow gears are fixed on both sides of the rotating ring 2, and a card slot adapted to the hollow gear is provided inside the limit frame 1. During specific installation, the hollow gear will pass through the card slot and be exposed on the surface of the limit frame 1. At this time, the hollow gear can be adjusted by the limit frame 1. The motor and the gear set are installed on the upper part and meshed with the gear set, so that the hollow gear can be driven to rotate, thereby driving the rotating ring 2 to rotate. The motor and the gear set are prior art and are not shown in the drawings of the present invention. After the bellows is limited by the limiting assembly, the motor is started to drive the rotating ring 2 to rotate. During this process, the position of the sliding block 4 is adjusted by the lifting assembly 3 to make it close to the tube body of the bellows, and finally the bellows is cut by the cutting assembly 5, thereby completing the effect of the automatic cutting operation. It should be noted that the lifting assembly 3 is mainly used to drive the cutting assembly 5 to perform linear reciprocating motion. This part is quite mature in the prior art, and this application does not describe it in detail. As an optional solution, the lifting assembly 3 can be in the form of a servo motor fixedly connected to a threaded rod, which is rotatably connected to the sliding block 4 through the threaded rod, and is equipped with a limiting rod that passes through the sliding block 4. The lifting operation of the sliding block 4 can be realized by rotating the servo motor. Further, the visual system can be installed on the limiting frame 1 to complete the cutting positioning of the bellows pipe joint and complete the precise cutting. This part is prior art and this application does not elaborate on it.

[0043] During specific cutting, the lifting component 3 drives the sliding block 4 to move, and the movement of the sliding block 4 drives the cutting component 5 to gradually approach the corrugated tube. At this time, the cutting blade 504 will gradually contact the corrugated tube, and then the corrugated tube will exert a reaction force on the cutting blade 504. Under the action of this force, the cutting blade 504 will push the mounting plate 503 to compress the extrusion spring 505, and then push the support rod 502 to slide inside the sliding rod 501, so that the pressure between the cutting blade 504 and the corrugated tube gradually increases, thereby forcing the cutting blade 504 to cut the corrugated tube. At the same time, the distance between the mounting plate 503 and the corrugated tube can be measured by the infrared sensor installed on the mounting plate 503, so as to judge whether the cutting blade 504 is inserted into the interior of the corrugated tube. After confirming that the cutting blade 504 is inserted into the interior of the corrugated tube, the rotating ring 2 starts to rotate, thereby driving the cutting blade 504 to rotate to complete the ring cutting operation; by setting a pair of cutting components 5, the success rate of one-time cutting can be ensured;

[0044] After cutting a large number of corrugated tubes, the cutting edge of the cutting blade 504 will inevitably become blunt. At this time, the cutting blade 504 is difficult to insert into the interior of the corrugated tube, which leads to an increase in the compression of the extrusion spring 505. When the compression of the extrusion spring 505 increases to a certain value, the cutting blade 504 will contact the grinding groove provided inside the grindstone 7, so that the cutting blade 504 can be grinded by the grindstone 7 during the subsequent cutting process, thereby realizing automatic maintenance of the cutting blade 504. It should be noted that the lifting and lowering of the electric grinding rod 6 can be controlled by setting a timing program, thereby realizing the effect of automatic timing maintenance.

[0045] When switching the model of the bellows, it should be noted that the bellows manufacturing machine needs to give the cutting machine a reset signal to return it to its initial state. In the initial state, after the bellows enters the interior of the limit frame 1, it will first be placed between multiple sets of guide rods 8. At this time, the guide rods 8 will not fit tightly with the bellows. Then the adjustment component is started to adjust the angle of the adjustment rod 9, and then the position of the guide rod 8 is adjusted, so that the multiple guide rods 8 gradually gather toward the center direction of the limit frame 1 until the guide rod 8 fits with the bellows. In this way, the effect of automatically clamping bellows of different sizes is achieved. There is no need to manually adjust the program, only the system needs to give a reset signal, which greatly reduces the situation of manual debugging of erroneous programs and reduces production accidents. At the same time, because multiple guide rods 8 gather toward the center direction of the limit frame 1 at the same time, and multiple limit components are arranged in a circular shape, the axis of the clamped bellows can be in the same straight line with the axis of the limit frame 1, so that the cutting accuracy can be improved.

[0046] When the opening and closing of the guide rod 8 needs to be adjusted, the transmission assembly 11 is first started, the transmission assembly 11 rotates to drive the rotating screw 18 to rotate, the rotating screw 18 rotates to drive the lifting assembly outside it to move, the lifting assembly runs to push the adjustment rod 9 to rotate with the axis of the connection with the mounting frame 10 as the center of the circle, the adjustment rod 9 rotates to push the guide rod 8 to rotate, and then the angle of the guide rod 8 is adjusted to achieve the opening and closing of multiple guide rods 8;

[0047] When the screw 18 rotates, the lifting platform 12 outside it will slide accordingly, and the sliding of the lifting platform 12 drives the adjusting wheel 14 to move, and the movement of the adjusting wheel 14 pushes the adjusting rod 9 to adjust the angle. The wheel-shaped design of the adjusting wheel 14 can effectively reduce the friction when pushing the adjusting rod 9, reduce the load of the lifting platform 12, improve efficiency and make it more stable.

[0048] It should be noted that after the cutting machine receives the reset signal, the electromagnet inside the rotating screw 18 starts to operate and generate magnetism, thereby exerting a repulsive force on the magnetic meshing teeth 1102. Under the action of the repulsive force, the magnetic meshing teeth 1102 stretch the telescopic spring 1103 to extend from the inside of the rotating disk 1101 and mesh with the hollow gear outside the rotating ring 2. In this way, by driving the rotating ring 2 to rotate, multiple rotating disks 1101 can be driven to rotate together to achieve the effect of synchronous adjustment; it should be noted that during the rotation of the rotating ring 2, the lifting assembly 3 will not operate. After the adjustment is completed, the electromagnet inside the rotating screw 18 will also lose power, so that the magnetic meshing teeth 1102 are separated from the hollow gear;

[0049] By setting the limit slide bar 13, the lifting platform 12 will not rotate with the rotating screw 18 during the rotation process, thereby limiting it. When the electromagnet inside the rotating screw 18 is energized, the magnetic spring piece 1301 will be repelled at the same time, thereby bending and shrinking into the inside of the limit slide bar 13, thereby not affecting the lifting of the lifting platform 12. After the electromagnet inside the rotating screw 18 loses power, the magnetic spring piece 1301 pops out to support and limit the lifting platform 12, thereby preventing the lifting platform 12 from Slippage occurs due to factors such as gravity or vibration; it should also be noted that the magnetic interference between the magnetic meshing teeth 1102 and the magnetic spring piece 1301 should be taken into consideration during design, that is, the magnetic material inside the magnetic meshing teeth 1102 should be installed as close to the axis of the rotating disk 1101 as possible during design, and the rotating disk 1101 should also use appropriate magnetic isolation materials. At the same time, the electromagnet inside the rotating screw 18 should be passed into the interior of the rotating disk 1101, so as to avoid magnetic interference with the magnetic spring piece 1301;

[0050] When the adjusting rod 9 adjusts the guide rod 8 to clamp the bellows, it cannot be guaranteed that the guide rod 8 and the bellows are always in the same horizontal plane. In fact, the ends of the guide rod 8 and the adjusting rod 9 will often contact the bellows first. When the ends of the guide rod 8 and the adjusting rod 9 contact the bellows, the electric telescopic rod 16 at this location will receive a signal and lock and no longer extend. At the same time, the system will also know the extension data of the electric telescopic rod 16 at this location, and then synchronously adjust the extension length of another electric telescopic rod 16, so that the axis of the guide rod 8 and the limit frame 1 are level, completing the fitting operation of the bellows and improving the supporting effect; it should be noted that, in the initial state, the electric telescopic rod 16 can be stretched and retracted by external force; and through the sliding design of the sliding frame 15 and the electric telescopic rod 16, the electric telescopic rod 16 will slide along the sliding frame 15 during the adjustment of the guide rod 8, thereby not affecting the rotation of the guide rod 8;

[0051] When the ends of the guide rod 8 and the adjusting rod 9 are in contact with the bellows, the pressure sensor 17 will receive a pressure signal, thereby sending a system signal to the electromagnet and the electric telescopic rod 16. By setting up a pair of pressure sensors 17 and comparing the pressure data of the two pressure sensors 17, the actual pressure of the guide rod 8 on the bellows can be known, so that the pressure can be adjusted by controlling the rotation of the rotating ring 2 to avoid deformation of the bellows due to excessive pressure, thereby completing the clamping operation of the bellows.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A corrugated pipe cutting machine, characterized in that: It comprises a limiting frame (1), wherein the limiting frame (1) A rotating ring (2) is rotatably connected inside, a lifting assembly (3) is fixedly connected to the outside of the rotating ring (2), a sliding block (4) is fixedly connected to the output end of the lifting assembly (3), the sliding block (4) passes through the rotating ring (2), a cutting assembly (5) is fixedly connected to the side of the sliding block (4) away from the lifting assembly (3), the cutting assembly (5) is used to cut the corrugated pipe, and the lifting assembly (3) is used to drive the cutting assembly (5) to move up and down, a plurality of limiting assemblies are arranged on both sides of the limiting frame (1) and on the outer circumference of the rotating ring (2), and the limiting assemblies can automatically limit the different types of corrugated pipes to be cut; the limiting assembly comprises a guide rod (8), one end of the guide rod (8) close to the limiting frame (1) is rotatably connected to an adjusting rod (9), an adjusting assembly is arranged on the outside of the adjusting rod (9), and the adjusting assembly is used to adjust the angle of the adjusting rod (9) relative to the limiting frame (1); The adjustment assembly comprises a mounting frame (10), the adjustment rod (9) is rotatably connected to the inside of the mounting frame (10), an adjustment slot is provided at one end of the adjustment rod (9) away from the guide rod (8), a rotating screw (18) is arranged inside the adjustment slot, a transmission assembly (11) is fixedly connected to one end of the rotating screw (18) close to the limit frame (1), a lifting assembly is threadedly connected to the outside of the rotating screw (18), and the lifting assembly is used to lift the adjustment rod (9) to adjust the angle; the transmission assembly (11) comprises a rotating disk (1101), the rotating disk (1101) is fixedly connected to the rotating screw (18), a plurality of magnetic meshing teeth (1102) are slidably connected inside the rotating disk (1101), a telescopic spring (1103) is fixedly connected between the rotating disk (1101) and the magnetic meshing teeth (1102), and a through electromagnet adapted to the magnetic meshing teeth (1102) is inserted inside the rotating screw (18); Limiting slide bars (13) are provided on both sides of the rotating screw rod (18); a pair of the limiting slide bars (13) pass through the lifting platform (12) and are fixedly connected to the limiting frame (1); and a plurality of magnetic spring sheets (1301) are fixedly connected inside the limiting slide bars (13).

2. A corrugated pipe cutting machine according to claim 1, characterized in that: The cutting assembly (5) comprises a pair of sliding rods (501), the pair of sliding rods (501) are both fixedly connected to one end of the sliding block (4) close to and away from the cutting assembly (5), one end of the sliding rod (501) away from the sliding block (4) is slidably connected to a support rod (502), one end of the support rod (502) away from the sliding rod (501) is fixedly connected to a mounting plate (503), an infrared sensor is fixedly connected to the bottom surface of the mounting plate (503), a cutting blade (504) is rotatably connected inside the mounting plate (503), and a compression spring (505) is fixedly connected between the mounting plate (503) and the sliding rod (501) and located outside the support rod (502).

3. A corrugated pipe cutting machine according to claim 2, characterized in that: A pair of electric grinding rods (6) are fixedly connected to one side of the sliding rod (501) close to the mounting plate (503) and located outside the support rod (502); a grindstone (7) is fixedly connected to one end of the electric grinding rod (6) away from the sliding rod (501); a grindstone (7) is provided inside the grindstone (7) and is adapted to match the cutting edge of the cutting blade (504).

4. The corrugated pipe cutting machine according to claim 1, characterized in that: The lifting assembly comprises a lifting platform (12) threadedly connected to a rotating screw rod (18); a side of the lifting platform (12) close to the adjusting rod (9) is rotatably connected to a pair of adjusting wheels (14); the spacing between the pair of adjusting wheels (14) is equal to the width of the adjusting slot.

5. The corrugated pipe cutting machine according to claim 2, characterized in that: A sliding frame (15) is fixedly connected to one side of the mounting frame (10) away from the limiting frame (1), and a pair of electric telescopic rods (16) are slidably connected inside the sliding frame (15). One end of the electric telescopic rod (16) away from the sliding frame (15) is rotatably connected to the inside of the guide rod (8), and one of the electric telescopic rods (16) is rotatably connected to the end of the guide rod (8) close to the adjustment rod (9).

6. A corrugated pipe cutting machine according to claim 5, characterized in that: A pressure sensor (17) is fixedly connected to one side of the guide rod (8) close to the center of the limiting frame (1) and at a position corresponding to the electric telescopic rod (16).

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