A full-automatic pipe cutting machine and a pipe cutting method based on aluminum pipe processing

Abstract

The application discloses a kind of full-automatic pipe cutting machine and pipe cutting method based on aluminum pipe processing, and relates to the technical field of pipe cutting machine.The full-automatic pipe cutting machine based on aluminum pipe processing includes: distance adjusting dust collection parts, each distance adjusting dust collection part includes: connecting barrel, connecting barrel is composed of several flat plates and arc plates connected alternately, arc plate is connected with connecting pipe by threaded tube, dust collection port is formed in the middle of the outer side of connecting pipe, several equidistantly distributed inner wall pressure adapting parts are slidingly connected to flat plate, and inner wall pressure adapting part is used to abut against non-cutting part of material inner wall under the action of elastic force and adapt to cutting length.The full-automatic pipe cutting machine based on aluminum pipe processing and pipe cutting method change the extension radius of support plate and the pressure between support plate and material inner wall by the action of air pressure, reduce the possibility of deformation or burr of material during cutting, adapt distance adjusting dust collection part to inner wall pressure adapting part, and timely absorb the debris generated on the inner side of material.

Description

Technical Field

[0001] This invention relates to the field of pipe cutting machine technology, and specifically to a fully automatic pipe cutting machine and method based on aluminum tube processing. Background Technology

[0002] The fully automatic tube cutting machine is a high-efficiency and precise piece of equipment used for aluminum tube processing. It can realize a series of operations such as automatic feeding, fixed-length cutting, and unloading of aluminum tubes.

[0003] Referring to Chinese Patent Publication No. CN104475856A, a special cutting system for aluminum tube trimming machine tools includes a raised base, a cylinder frame, a first cylinder, a cylinder floating joint, a tool holder, a dust baffle, a slider, a track, a first cutting rod, a second cutting rod, a cutting blade, a cutting blade seat, and a second cylinder. The cylinder frame is mounted on the left side of the upper surface of the raised base. The first cylinder is mounted on the cylinder frame, and a cylinder floating joint is connected to the right side of the first cylinder. The second cylinder is mounted on the left side of the upper surface of the tool holder. The upper end of the second cylinder is hinged to the left side of the first cutting rod, and the middle part of the first cutting rod is hinged to the upper part of the cutting rod fulcrum. The lower end of the cutting rod fulcrum is fixed to the middle of the upper surface of the tool holder. The lower half of the cutting blade is fitted inside the cutting blade seat, which is mounted on the right side of the upper surface of the second cutting rod. This invention uses one cylinder to control the length of the aluminum tube to be cut, and another cylinder controls the cutting blade to cut the aluminum tube using a lever principle. This method has a reasonable structure and high processing efficiency.

[0004] Aluminum tubes are relatively soft, especially when the walls are thin. If there is no internal support, and the tube is held only by external clamps, the clamping force is concentrated at the bottom and top of the tube, resulting in a large force per unit area. This can easily cause the tube to deform. During the cutting process, the tube may jump or shift due to the lack of internal support, resulting in a large number of burrs at the cut, and even inaccurate cutting length or tilted cuts, which seriously affects cutting accuracy and product quality. The size of the internal support is difficult to adjust, making it difficult to adapt to aluminum tubes of different diameters or wall thicknesses. Traditional methods of adjusting the internal support can be quite complicated. The space inside the cut is narrow, making it difficult for the suction port to act directly on this area. Furthermore, debris may adhere to the tube wall due to electrostatic adsorption, friction, and other factors, making it difficult to collect debris inside the cut after the aluminum tube is cut. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a fully automatic pipe cutting machine and method based on aluminum tube processing. By changing the extension radius of the support plate and the pressure between the support plate and the inner wall of the material through air pressure, the possibility of material deformation or burr generation during the cutting process is reduced. The diameter of the adjustable dust suction component is changed to match the adjustable dust suction component with the inner wall pressure component, so as to absorb the debris generated inside the material in a timely manner.

[0006] Technical Solution: To achieve the above objectives, the present invention is implemented through the following technical solution: A fully automatic tube cutting machine based on aluminum tube processing, comprising: a cutting table, one end of the top of the cutting table being rotatably connected to a first rotating shaft via a driver, the first rotating shaft being sleeved with a plurality of equidistantly distributed adjustable dust suction components, each of the adjustable dust suction components comprising: a connecting cylinder, the connecting cylinder being composed of a plurality of flat plates and arc plates alternately connected, the arc plates being connected to connecting pipes via threaded pipes, adjacent connecting pipes being connected via telescopic pipes, a dust suction port being provided in the middle of the outer side of the connecting pipe, the flat plates being slidably connected with a plurality of equidistantly distributed inner wall pressure fittings, the inner wall pressure fittings being used to abut against the non-cutting part of the inner wall of the material under the action of elasticity and to adapt to the cutting length.

[0007] Preferably, each of the adjustable-distance dust collection components further includes: a telescopic tube, which is disposed between adjacent connecting tubes. Both ends of each telescopic tube are connected to the side of the adjacent connecting tube that is close to it. An inner tightening nut is provided on the inner side of the connecting tube, and an outer tightening nut is provided on the outer side of the connecting tube. Both the inner tightening nut and the outer tightening nut are threaded to the threaded tube. The distance between the connecting tube and the connecting cylinder is adjusted by turning the inner tightening nut and the outer tightening nut, so that the connecting tube is adapted to the inner wall of the material. Several connecting tubes are distributed at equal intervals in the circumferential direction. One of the connecting tubes has ventilation holes through one or both sides. Each plate has a sliding groove on its side.

[0008] Preferably, the suction port is trapezoidal, with the two waistlines gradually narrowing along a virtual straight line. The opening area of ​​the suction port near the connecting tube is smaller than the opening area of ​​the suction port away from the connecting tube. A suction chamber is provided inside the connecting tube, and the suction chamber is connected to the suction port.

[0009] Preferably, adjacent adjustable dust collection components are connected by a dust collection pipe, one of the adjustable dust collection components is connected to the vacuum cleaner by a dust outlet pipe, an adjustable dust collection component is provided between adjacent inner wall pressure fittings, and the distance between adjacent adjustable dust collection components is equal to the length of the standard cut part.

[0010] Preferably, the inner wall pressure-adapting component includes: a slider, each slider being slidably connected to a groove, each slider having a side surface connected to a scale plate, each scale plate having a side cylinder connected to a side surface, several side cylinders being equidistantly distributed along the circumference of the connecting cylinder, each side cylinder having a placement groove at one end, each side cylinder having a cavity inside, the cavity being connected to the bottom of the placement groove, the cavity being slidably connected to a pneumatic plate, the pneumatic plate being connected to a support plate via a spring, the cavities being connected via air ducts, the support plate being adapted to the inner wall of the material, connecting arc strips being provided between adjacent side cylinders, one or more connecting arc strips having threaded holes on their side surfaces in the middle, the threaded holes being threadedly connected to fastening bolts, one end of the fastening bolts abutting against the arc surface, the support plate having a groove on its side surface, a pressure sensor being connected in the groove, the surface of the support plate and the surface of the pressure sensor being located on the same arc surface, the pressure sensor being used to measure the pressure between the support plate and the inner wall of the material in real time.

[0011] Preferably, the plate is a scale plate, which is composed of a circular plate and a ruler plate. The circular plate is adapted to the side cylinder, and the scale lines of the ruler plate and the scale plate are parallel to each other. By moving the scale plate, the inner wall pressure component is driven and the distance between adjacent inner wall pressure components is equal to the length of the standard cut component.

[0012] Preferably, the inner arc surface of the support plate and the outer arc surface of the connecting pipe are matching arc surfaces. A cutting area is provided between adjacent inner wall pressure fittings. Each adjustable suction device is placed inside the cutting area. The width of the cutting area is the same as the width of the suction port near the connecting cylinder. Adjacent inner wall pressure fittings are connected through a main pipe. One end of the main pipe is connected to the air outlet of the fan.

[0013] Preferably, a material feeding channel is placed at one end of the cutting table, and a first motor is arranged above the material feeding channel. A support platform is connected to the fixed end of the first motor, and a lead screw is rotatably connected to the rotating end of the first motor. A movable nut is threaded onto the lead screw, and a wire cylinder is connected to the outside of the movable nut. A push plate is connected to the side of the wire cylinder. The push plate is used to push the material on the support platform to the cutting position of the cutting table. A positioning plate is connected to the edge of the cutting table, and a transfer cylinder is slidably connected to the positioning plate. A first hydraulic cylinder is connected to one side of the transfer cylinder through a first connecting plate. The telescopic end of the pressure cylinder is connected to a rotating plate via a movable component. A cutter is connected to the top of the rotating plate. The rotating end of the cutter is connected to the rotating end of a second motor via a pulley. Side plates are connected to both ends of the top of the moving cylinder. A second rotating shaft is provided between the two side plates. The side of the top of the second rotating shaft is connected to the bottom of the rotating plate. A second hydraulic cylinder is connected to the top of one end of the moving cylinder via a second connecting plate. The telescopic end of the second hydraulic cylinder is connected to a moving plate. The bottom of the moving plate is semi-circular. The diameter of the bottom of the moving plate is equal to the diameter of the support plate, and the diameter of the bottom of the moving plate is smaller than the diameter of the material.

[0014] A pipe cutting method based on aluminum tube processing is applied to a fully automatic pipe cutting machine based on aluminum tube processing. The inner wall pressure fitting is moved horizontally to match the width of the inner wall pressure fitting with the length of the standard cutting part. The entire inner wall pressure fitting is quickly fixed to the arc surface through a threaded tube. The diameter of the adjustable dust suction part is changed to match the inner wall pressure fitting. The adjustable dust suction part absorbs the debris inside the material in time through the matched dust suction port. After all the material is cut, the downward moving plate abuts against one side of a section of material and pushes all the material to move horizontally and enter the feeding channel. The push plate pushes the material horizontally to the cutting station of the cutting table, which speeds up the loading and unloading speed.

[0015] Beneficial Effects: This invention provides a fully automatic pipe cutting machine and method based on aluminum tube processing. Compared with the prior art, it has the following beneficial effects: 1. The horizontally moving inner wall pressure-adapting component changes the extension radius of the support plate and the pressure between the support plate and the inner wall of the material through air pressure. During feeding, the diameter of the support plate is smaller than the diameter of the material. Before cutting, the support plate squeezes the material and reaches the standard support force, reducing the possibility of material deformation or burr generation during the cutting process. The diameter of the adjustable dust suction component is changed to match the inner wall pressure-adapting component, and the adjustable dust suction port absorbs the debris inside the material in a timely manner.

[0016] 2. Initially, the diameter of the support plate is smaller than that of the material. The support plate does not obstruct the material, facilitating its movement to the cutting station and increasing the air pressure within the placement slot. The support plate approaches and presses against the inner wall of the material. A pressure sensor measures the pressure between the support plate and the material in real time. Once the pressure reaches the standard support force, the fan is turned off. With appropriate support force, the support force and cutting force are precisely offset, preventing the aluminum tube from exhibiting skewed cuts or chipped edges due to force imbalance, eliminating the need for subsequent grinding and correction. The support force does not exceed the yield strength of the aluminum tube's inner wall, preventing localized indentations or tube flattening. After cutting, the roundness deviation of the aluminum tube's outer diameter can be controlled within 0.03mm, meeting the dimensional requirements for subsequent assembly. The support component fits tightly against the inner wall of the aluminum tube without gaps, ensuring no vibration or movement of the aluminum tube during cutting. The blade always cuts along the preset path, ensuring dimensional consistency when cutting multiple aluminum tubes in batches. After cutting, deburring and rounding operations can be avoided or reduced, saving working time and improving efficiency.

[0017] 3. Through the coordinated layout of the support plate and the suction pipe, the collection path of debris on the inner wall is directly opened. The suction port is set in this gap and located inside the support plate, which means that the suction port can be directly aimed at the contact point between the cutting blade and the inner wall of the material. The debris is captured by the suction port as soon as it is generated, avoiding the debris from falling due to gravity or being attracted by static electricity deep in the cavity. When the support plate supports the inner wall of the material, it will form a relatively closed local space inside the cavity, leaving only the cutting and suction channels. The debris generated by cutting will not spread randomly. Instead, under the protection of the support plate, it will naturally flow towards the suction port in the gap, which is equivalent to providing a guide channel for the debris and further improving the collection efficiency.

[0018] 4. The scale plate is parallel to the scale on the flat plate. After the scale plate moves a predetermined distance, stop moving and tighten the fastening bolt. One end of the fastening bolt abuts against the side of the flat plate, which quickly completes the adjustment and fixation of the entire inner wall pressure component. The structure is simple and easy to operate. Attached Figure Description

[0019] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present application and, together with the specification, further serve to explain the principles of the present application and enable those skilled in the art to implement and use the present application.

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 for Figure 1 A structural diagram from another perspective.

[0023] Figure 3 This is a structural diagram of the first motor, lead screw, moving nut, lead drum, and push plate.

[0024] Figure 4 for Figure 1 A schematic diagram of the structure after removing the support platform and lead screw.

[0025] Figure 5 for Figure 4 A schematic diagram of the structure after removing the feeding channel.

[0026] Figure 6 This is a schematic diagram of the overall structure of the cutting tool, the moving plate, and the moving cylinder.

[0027] Figure 7 This is a schematic diagram of the internal structure of the material.

[0028] Figure 8 This is a structural diagram of the adjustable dust collection component and the inner wall pressure fitting component.

[0029] Figure 9 This is a structural diagram of the connecting pipe, telescopic pipe, threaded pipe, spring, and support plate.

[0030] Figure 10 This is a schematic diagram of the adjustable-distance dust collection component.

[0031] Figure 11 This is a structural diagram of a connecting cylinder, flat plate, arc plate, slide, connecting pipe, telescopic pipe, and threaded pipe.

[0032] Figure 12 This is a schematic diagram of one end of the connecting pipe.

[0033] Figure 13 This is a schematic diagram of the structure of the inner wall pressure fitting.

[0034] Figure 14 for Figure 13 A schematic diagram of the structure after the support plate has been removed.

[0035] The reference numerals in the diagram are as follows: 11. Cutting table; 12. Driver; 13. Feeding channel; 14. Support platform; 15. Positioning plate; 16. First rotating shaft; 21. First motor; 22. Lead screw; 23. Moving nut; 24. Threaded drum; 25. Push plate; 31. Moving drum; 32. Rotating plate; 33. Cutting tool; 34. Second motor; 35. Pulley; 36. First hydraulic cylinder; 37. Moving part; 38. Second hydraulic cylinder; 39. Moving plate; 41. Side plate; 42. Second rotating shaft; 43. First connecting plate; 44. Second... 5. Connecting plate; 6. Adjustable suction device; 7. Connecting cylinder; 8. Flat plate; 9. Arc plate; 10. Slide groove; 11. Connecting pipe; 12. Telescopic pipe; 13. Threaded pipe; 14. Internal tightening nut; 15. External tightening nut; 16. Ventilation hole; 17. Suction port; 18. Suction chamber; 19. Inner wall pressure fitting; 10. Side cylinder; 10. Spring; 11. Support plate; 12. Connecting arc strip; 13. Scale plate; 14. Slider; 15. Fastening bolt; 16. Placement slot; 17. Material; 18. Suction pipe; 19. Exhaust pipe.

[0036] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] like Figure 1 - Figure 14As shown, the present invention provides a fully automatic tube cutting machine based on aluminum tube processing, including: a cutting table 11, one end of the top of the cutting table 11 is rotatably connected to a first rotating shaft 16 via a driver 12, the first rotating shaft 16 is sleeved with a plurality of equidistantly distributed adjustable dust suction components 5, each adjustable dust suction component 5 includes: a connecting cylinder 51, the connecting cylinder 51 is composed of a plurality of flat plates 511 and arc plates 512 alternately connected, the arc plates 512 are connected to connecting pipes 52 via threaded pipes 54, adjacent connecting pipes 52 are connected via telescopic pipes 53, a dust suction port 58 is opened in the middle of the outer side of the connecting pipe 52, and a plurality of equidistantly distributed inner wall pressure fittings 6 are slidably connected to the flat plates 511, the inner wall pressure fittings 6 are used to abut against the non-cut part of the inner wall of the material 7 under the action of elasticity and adapt to the cutting length.

[0039] Each adjustable dust collection component 5 also includes: a telescopic tube 53, which is disposed between adjacent connecting tubes 52. Both ends of each telescopic tube 53 are connected to the side of the adjacent connecting tube 52 that is close to it. An inner tightening nut 55 is provided on the inner side of the connecting tube 52, and an outer tightening nut 56 is provided on the outer side of the connecting tube 52. Both the inner tightening nut 55 and the outer tightening nut 56 are threadedly connected to the threaded tube 54. The distance between the connecting tube 52 and the connecting cylinder 51 is adjusted by turning the inner tightening nut 55 and the outer tightening nut 56, so that the connecting tube 52 is adapted to the inner wall of the material 7. Several connecting tubes 52 are distributed at equal intervals in the circumferential direction. One or both sides of one of the connecting tubes 52 are provided with ventilation holes 57. Each flat plate 511 is provided with a sliding groove 513 on its side.

[0040] The suction port 58 is trapezoidal in shape, with its two waistlines gradually narrowing along a virtual straight line. The opening area of ​​the suction port 58 near the connecting cylinder 51 is smaller than the opening area of ​​the suction port 58 away from the connecting cylinder 51. A suction chamber 59 is provided inside the connecting pipe 52, and the suction chamber 59 is connected to the suction port 58.

[0041] Adjacent adjustable suction components 5 are connected by suction pipes 81. One adjustable suction component 5 is connected to the vacuum cleaner through a dust outlet pipe 82. An adjustable suction component 5 is provided between adjacent inner wall pressure components 6. The distance between adjacent adjustable suction components 5 is equal to the length of the standard cut component.

[0042] The inner wall pressure-adapting component 6 includes: sliders 66, each slider 66 being slidably connected to a groove 513, each slider 66 having its side connected to one side of a scale plate 65, and each scale plate 65 having a side cylinder 61 connected to one side. Several side cylinders 61 are equidistantly distributed along the circumference of the connecting cylinder 51. Each side cylinder 61 has a placement groove 68 at one end, and each side cylinder 61 has a cavity inside, which is connected to the bottom of the placement groove 68. A pneumatic plate is slidably connected to the cavity, and the pneumatic plate is connected to a support plate 63 via a spring 62. All cavities are connected by air ducts. The support plate 63 is adapted to the inner wall of the material 7. Connecting arc strips 64 are provided between adjacent side cylinders 61. One or more connecting arc strips 64 have threaded holes on the side of their middle section. Fastening bolts 67 are threaded into the threaded holes. One end of the fastening bolts 67 abuts against the arc surface. The side of the support plate 63 has a groove. A pressure sensor is connected in the groove. The surface of the support plate 63 and the surface of the pressure sensor are located on the same arc surface. The pressure sensor is used to measure the pressure between the support plate 63 and the inner wall of the material 7 in real time.

[0043] The flat plate 511 is a scale plate, and the scale plate 65 is composed of a circular plate and a ruler plate. The circular plate is adapted to the side cylinder 61, and the scale lines of the ruler plate and the scale plate are parallel to each other. By moving the scale plate 65, the inner wall pressure fitting 6 is driven and the distance between adjacent inner wall pressure fittings 6 is equal to the length of the standard cut piece.

[0044] The inner arc surface of the support plate 63 and the outer arc surface of the connecting pipe 52 are matching arc surfaces. A cutting area is provided between adjacent inner wall pressure fittings 6. Each adjustable dust suction component 5 is placed inside the cutting area. The width of the cutting area is the same as the width of the dust suction port 58 near the connecting cylinder 51. Adjacent inner wall pressure fittings 6 are connected through the main pipe. One end of the main pipe is connected to the air outlet of the fan.

[0045] A material feeding channel 13 is placed at one end of the cutting table 11. A first motor 21 is installed above the material feeding channel 13. A support platform 14 is connected to the fixed end of the first motor 21. A lead screw 22 is rotatably connected to the rotating end of the first motor 21. A movable nut 23 is threadedly connected to the lead screw 22. A wire drum 24 is connected to the outside of the movable nut 23. A push plate 25 is connected to the side of the wire drum 24. The push plate 25 is used to push the material 7 on the support platform 14 to the cutting position of the cutting table 11. A positioning plate 15 is connected to the edge of the cutting table 11. A moving cylinder 31 is slidably connected to the positioning plate 15. A first hydraulic cylinder 36 is connected to one side of the moving cylinder 31 through a first connecting plate 43. The telescopic end of 6 is connected to a rotating plate 32 via a movable part 37. A cutter 33 is connected to the top of the rotating plate 32. The rotating end of the cutter 33 is connected to the rotating end of the second motor 34 via a pulley 35. Both ends of the top of the moving cylinder 31 are connected to side plates 41. A second rotating shaft 42 is provided between the two side plates 41. The side of the top of the second rotating shaft 42 is connected to the bottom of the rotating plate 32. The top of one end of the moving cylinder 31 is connected to a second hydraulic cylinder 38 via a second connecting plate 44. The telescopic end of the second hydraulic cylinder 38 is connected to a moving plate 39. The bottom of the moving plate 39 is semi-circular. The diameter of the bottom of the moving plate 39 is equal to the diameter of the support plate 63. The diameter of the bottom of the moving plate 39 is smaller than the diameter of the material 7.

[0046] A pipe cutting method based on aluminum tube processing is applied to a fully automatic pipe cutting machine based on aluminum tube processing. The inner wall pressure fitting 6 is moved horizontally to match the width of the inner wall pressure fitting 6 with the length of the standard cutting part. The extension radius of the support plate 63 and the pressure between the support plate 63 and the inner wall of the material 7 are changed by air pressure. During feeding, the diameter of the support plate 63 is smaller than the diameter of the material 7. Before cutting, the support plate 63 squeezes the material 7 to achieve the standard support force. The entire inner wall pressure fitting 6 is quickly fixed to the arc surface through the threaded tube 54. The diameter of the adjustable dust suction component 5 is changed to match the inner wall pressure fitting 6. The adjustable dust suction component 5 absorbs the debris inside the material 7 in time through the matching dust suction port 58. After all the material 7 is cut, the downward moving plate 39 abuts against one side of a section of material 7 and pushes all the material 7 to move horizontally and enter the unloading channel 13. The push plate 25 pushes the material 7 horizontally to the cutting position of the cutting table 11 to speed up the loading and unloading speed.

[0047] In use, determine the length of the standard cutting piece and the predetermined distance that the inner wall pressure fitting 6 needs to move. Loosen the fastening bolt 67, and the inner wall pressure fitting 6 is no longer fixed to the connecting cylinder 51. Move the inner wall pressure fitting 6 horizontally, and the slider 66 moves along the direction of the slide groove 513, which serves as a limit. The scale plate 65 is parallel to the scale on the plate 511. When the scale plate 65 moves a predetermined distance, stop moving. Tighten the fastening bolt 67, and one end of the fastening bolt 67 abuts against the side of the plate 511. The adjustment and fixation of the entire inner wall pressure fitting 6 is completed quickly. The structure is simple, easy to operate, and can meet the needs of different cutting lengths of materials 7. The outer diameter of the adjusted support plate 63 is equal to the inner diameter of the material 7. The support plate 63 is used to support the inner wall of the material 7, and the supporting force of the support plate 63 is adapted to the material 7. At this time, the supporting force of the support plate 63 is the standard supporting force. If the material 7 is a thin-walled tube with a wall thickness ≤1mm and a diameter ≤20mm: F-cut ≈ 300-800N, such as a φ16×0.8mm aluminum tube, with a carbide insert, a feed rate of 0.08mm / r, and a cutting speed of 0.08mm / r. The cutting force is approximately 500N. If material 7 is a medium-thick wall tube with a wall thickness of 1-3mm and a diameter of 20-50mm: F_cut ≈ 800-2000N, such as a φ30×2mm aluminum tube with a feed rate of 0.12mm / r, the cutting force is approximately 1200N. If material 7 is a thick wall tube with a wall thickness > 3mm and a diameter > 50mm: F_cut ≈ 2000-4000N. It needs to be tested in conjunction with the actual cutting parameters. The larger the feed rate and the deeper the cutting depth, the greater the cutting force.

[0048] A pneumatic plate can also be slidably connected to the bottom of the placement slot 68. One side of the pneumatic plate is connected to a spring 62. All placement slots 68 are connected. The movement distance of the pneumatic plate is controlled by adjusting the air pressure intensity within the placement slot 68. The greater the air pressure intensity, the farther the pneumatic plate is from the bottom of the placement slot 68, and the larger the unfolding radius of the support plate 63. Initially, the unfolding radius of the support plate 63 is small, and the diameter of the support plate 63 is smaller than the diameter of the material 7. The support plate 63 is located inside the material 7 and will not obstruct the material 7, making it easy for the material 7 to be moved horizontally to the cutting station. Then, the blower is started to continuously increase the air pressure within the placement slot 68. The support plate 63 approaches and presses against the inner wall of the material 7. A pressure sensor is installed on the surface of the support plate 63. The surface of the pressure sensor and the surface of the support plate 63 are located on the same arc surface. The pressure sensor measures the pressure between the support plate 63 and the material 7 in real time. The blower is turned off after the pressure between the two reaches the standard support force. Aluminum tubes, especially thin-walled and slender ones, have relatively low rigidity. Insufficient or uneven support during cutting can easily lead to radial displacement and axial bending due to cutting forces. Conversely, excessive support can cause localized deformation of the aluminum tube due to compression. Appropriate support force directly improves cutting accuracy. When the support force and cutting force are precisely offset, the aluminum tube will not experience skewed cuts or chipped edges due to force imbalance, eliminating the need for subsequent grinding corrections. Since the support force does not exceed the yield strength of the aluminum tube's inner wall, localized indentations or tube flattening will not occur. The roundness deviation of the aluminum tube's outer diameter after cutting can be controlled within 0.03mm, meeting the dimensional requirements for subsequent assembly. The support component fits tightly against the inner wall of the aluminum tube without gaps, preventing vibration and movement of the aluminum tube during cutting. The blade can always cut along the preset path, ensuring dimensional consistency when cutting multiple aluminum tubes in batches. After cutting, subsequent operations such as deburring and rounding can be avoided or reduced, saving working time and improving work efficiency.

[0049] An adjustable-distance suction device 5 is installed between each adjacent inner wall pressure fitting 6. The position of the connecting pipe 52 is adjusted by tightening the outer tightening nut 56 and the inner tightening nut 55. The connecting pipe 52 is an elastic pipe. During this process, the telescopic pipe 53 extends and retracts. The connecting pipe 52 is adapted to the inner wall pressure fitting 6. The gap between the adjacent inner wall pressure fittings 6 is directly opposite the suction port 58. The adjustable-distance suction device 5 absorbs the debris inside the material 7 in a timely manner through the adapted suction port 58. When cutting aluminum tubes, the core problem of inner wall debris is that the location is hidden and difficult to reach by conventional suction ports 58. However, through the coordinated layout of the support plate 63 and the suction pipe 81, the collection path of inner wall debris is directly opened up. The support plate 63 itself is used to support the inner wall of the material 7. Its gap corresponds exactly to the working area of ​​the cutting blade. The cutting blade cuts into the material 7 through the gap. The dust suction port 58 is set in the gap and located inside the support plate 63. This means that the dust suction port 58 can be directly aligned with the contact point between the cutting blade and the inner wall of the material 7. As soon as the debris is generated, it will be captured by the dust suction port 58, preventing the debris from falling due to gravity or being attracted by static electricity deep in the cavity. When the support plate 63 supports the inner wall of the material 7, it will form a relatively closed local space inside the cavity, leaving only the cutting and dust suction channels. The debris generated by the cutting will not spread randomly. Instead, under the protection of the support plate 63, it will naturally flow towards the dust suction port 58 in the gap, which is equivalent to providing a flow channel for the debris and further improving the collection efficiency. Traditional vacuuming methods, such as the external suction port 58, typically achieve a collection rate of less than 30% for debris from the inner wall. This design, however, shortens the distance between the suction port 58 and the point where debris is generated to 5-10mm. Combined with the localized negative pressure inside the tube, the collection rate can be increased to over 80%, especially effective at collecting fine aluminum shavings with a diameter of 0.1-1mm. These shavings easily adhere to the tube wall and are difficult to clean using conventional methods. The suction tube 81 only occupies the gap between the support plates 63, without altering the contact area and support strength between the support plates 63 and the inner wall of the material 7. The support plates 63 still provide uniform inner wall support for the material 7, counteracting radial vibration caused by the cutting force and preventing problems such as flattened tubes and skewed cuts during material 7 cutting. This addresses both the core requirements of "deformation prevention" and "shaving collection." With improved internal debris collection, subsequent processes such as manual brush cleaning of the pipe cavity and high-pressure air blowing are no longer required, reducing the processing cycle of a single material 7 by 15%-20%. Simultaneously, it reduces secondary pollution caused by debris residue within the pipe cavity, lowering the rework rate. The design of the suction pipe 81 embedded in the gap of the support plate 63 eliminates the need for additional external space, making the overall structure more compact. It can be directly adapted to the continuous operation of a fully automatic pipe cutter, eliminating the need to adjust the automation flow due to the debris collection device and improving the smoothness of the production line.

[0050] Place material 7 on support platform 14, start first motor 21, the rotating end of first motor 21 drives lead screw 22 to rotate, moving nut 23 sequentially drives screw drum 24, push plate 25 and material 7 to move horizontally, material 7 and support platform 14 are moved to the cutting station of cutting table 11.

[0051] During cutting, the second motor 34 drives the cutter 33 via the pulley 35. The telescopic end of the first hydraulic cylinder 36 sequentially moves the rotating plate 32 and the cutter 33 toward the material 7. The cutter 33 cuts through the gap between the two inner wall pressure members 6. After cutting, the cutter 33 returns to its original position under the action of the telescopic end of the first hydraulic cylinder 36. The moving cylinder 31 moves horizontally with the entire assembly containing the cutter 33 to the next cutting position until the entire material 7 is cut.

[0052] After the cutting is completed, the second hydraulic cylinder 38 is started. The telescopic end of the second hydraulic cylinder 38 moves vertically downward with the moving plate 39. The moving plate 39 moves horizontally with the moving cylinder 31. The moving plate 39 is slidably connected to the surface of the support plate 63. The moving plate 39 pushes all the cut material segments 7, and the material segments 7 slide into the feeding channel 13.

[0053] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0054] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A fully automatic pipe cutting machine based on aluminum tube processing, characterized in that, include: A cutting table (11) is rotatably connected to a first rotating shaft (16) via a driver (12) at one end of the cutting table (11). The first rotating shaft (16) is fitted with several equally spaced adjustable dust collection parts (5). Each adjustable dust collection part (5) includes: a connecting cylinder (51). The connecting cylinder (51) is composed of several flat plates (511) and arc plates (512) connected alternately. The arc plates (512) are connected to connecting pipes (52) via threaded pipes (54). Adjacent connecting pipes (52) are connected via telescopic pipes (53). A dust collection port (58) is opened in the middle of the outer side of the connecting pipe (52). Several equally spaced inner wall pressure fittings (6) are slidably connected to the flat plate (511). The inner wall pressure fittings (6) are used to abut against the non-cutting part of the inner wall of the material (7) under the action of elasticity and adapt to the cutting length. Each of the flat plates (511) has a sliding groove (513) on its side. The inner wall pressure fitting (6) includes a slider (66). Each slider (66) is slidably connected to the sliding groove (513). The side of each slider (66) is connected to one side of the scale plate (65). Each side of the scale plate (65) is connected to a side cylinder (61). Several side cylinders (61) are equidistantly distributed in the circumferential direction of the connecting cylinder (51). One end of each side cylinder (61) has a placement groove (68). The interior of each side cylinder (61) has a cavity. The cavity is connected to the bottom of the placement groove (68). A pneumatic plate is slidably connected to the cavity. The pneumatic plate is connected to the... A support plate (63) is connected to a spring (62). All the cavities are connected by air ducts. The support plate (63) is adapted to the inner wall of the material (7). A connecting arc strip (64) is provided between adjacent side cylinders (61). A threaded hole is opened on the side of the middle part of one or more connecting arc strips (64). A fastening bolt (67) is threadedly connected to the threaded hole. One end of the fastening bolt (67) abuts against the arc surface. A groove is opened on the side of the support plate (63). A pressure sensor is connected in the groove. The surface of the support plate (63) and the surface of the pressure sensor are located on the same arc surface. The pressure sensor is used to measure the pressure between the support plate (63) and the inner wall of the material (7) in real time.

2. The fully automatic pipe cutting machine based on aluminum tube processing according to claim 1, characterized in that: Each of the adjustable dust collection components (5) further includes: a telescopic tube (53), which is arranged between adjacent connecting tubes (52). Both ends of each telescopic tube (53) are connected to the side of the adjacent connecting tube (52) that is close to it. An inner tightening nut (55) is provided on the inner side of the connecting tube (52), and an outer tightening nut (56) is provided on the outer side of the connecting tube (52). The inner tightening nut (55) and the outer tightening nut (56) are both threadedly connected to the threaded tube (54). The distance between the connecting tube (52) and the connecting cylinder (51) is adjusted by turning the inner tightening nut (55) and the outer tightening nut (56) so that the connecting tube (52) is adapted to the inner wall of the material (7). Several connecting tubes (52) are distributed at equal intervals in the circumferential direction. One of the connecting tubes (52) has ventilation holes (57) through one side or both sides.

3. The fully automatic pipe cutting machine based on aluminum tube processing according to claim 1, characterized in that: The suction port (58) is trapezoidal, with the two waistlines gradually narrowing along a virtual straight line. The opening area of ​​the suction port (58) near the connecting cylinder (51) is smaller than the opening area of ​​the suction port (58) away from the connecting cylinder (51). A suction chamber (59) is provided inside the connecting pipe (52), and the suction chamber (59) is connected to the suction port (58).

4. The fully automatic pipe cutting machine based on aluminum tube processing according to claim 1, characterized in that: The adjacent adjustable suction components (5) are connected by suction pipes (81), and one of the adjustable suction components (5) is connected to the vacuum cleaner through a dust outlet pipe (82). An adjustable suction component (5) is provided between adjacent inner wall pressure components (6), and the distance between adjacent adjustable suction components (5) is equal to the length of the standard cut component.

5. The fully automatic pipe cutting machine based on aluminum tube processing according to claim 1, characterized in that: The flat plate (511) is a scale plate. The scale plate (65) is composed of a round plate and a ruler plate. The round plate is adapted to the side cylinder (61). The scale lines of the ruler plate and the scale plate are parallel to each other. By moving the scale plate (65), the inner wall pressure fitting (6) is driven and the distance between adjacent inner wall pressure fittings (6) is equal to the length of the standard cut piece.

6. The fully automatic pipe cutting machine based on aluminum tube processing according to claim 1, characterized in that: The inner arc surface of the support plate (63) and the outer arc surface of the connecting pipe (52) are matching arc surfaces. A cutting area is provided between adjacent inner wall pressure fittings (6). Each adjustable dust suction component (5) is placed inside the cutting area. The width of the cutting area is the same as the width of the dust suction port (58) near the connecting cylinder (51). Adjacent inner wall pressure fittings (6) are connected through a main pipe. One end of the main pipe is connected to the air outlet of the fan.

7. The fully automatic pipe cutting machine based on aluminum tube processing according to claim 1, characterized in that: A material feeding channel (13) is placed at one end of the cutting table (11). A first motor (21) is installed above the material feeding channel (13). A support platform (14) is connected to the fixed end of the first motor (21). A lead screw (22) is rotatably connected to the rotating end of the first motor (21). A movable nut (23) is threaded onto the lead screw (22). A wire drum (24) is connected to the outside of the movable nut (23). A push plate (25) is connected to the side of the wire drum (24). The push plate (25) is used to push the material (7) on the support platform (14) to the cutting position of the cutting table (11). A positioning plate (15) is connected to the edge of the cutting table (11). A moving cylinder (31) is slidably connected to the positioning plate (15). A first hydraulic cylinder (36) is connected to one side of the moving cylinder (31) through a first connecting plate (43). The telescopic end of the pressure cylinder (36) is connected to a rotating plate (32) via a movable part (37). A cutter (33) is connected to the top of the rotating plate (32). The rotating end of the cutter (33) is connected to the rotating end of the second motor (34) via a pulley (35). Both ends of the top of the moving cylinder (31) are connected to side plates (41). A second rotating shaft (42) is provided between the two side plates (41). The side of the top of the second rotating shaft (42) is connected to the bottom of the rotating plate (32). The top of one end of the moving cylinder (31) is connected to a second hydraulic cylinder (38) via a second connecting plate (44). The telescopic end of the second hydraulic cylinder (38) is connected to a moving plate (39). The bottom of the moving plate (39) is semi-circular. The diameter of the bottom of the moving plate (39) is equal to the diameter of the support plate (63). The diameter of the bottom of the moving plate (39) is smaller than the diameter of the material (7).

8. A tube cutting method based on aluminum tube processing, applied to the fully automatic tube cutting machine based on aluminum tube processing as described in any one of claims 1-7, characterized in that: The inner wall pressure fitting (6) is moved horizontally so that the width of the inner wall pressure fitting (6) matches the length of the standard cutting part. The entire inner wall pressure fitting (6) is quickly fixed to the arc surface through the threaded tube (54). The diameter of the adjustable dust suction part (5) is changed so that the adjustable dust suction part (5) matches the inner wall pressure fitting (6). The adjustable dust suction part (5) absorbs the debris inside the material (7) in time through the matching dust suction port (58). After all the material (7) is cut, the downward moving plate (39) abuts against one side of a section of material (7) and pushes all the material (7) to move horizontally and enter the feeding channel (13). The push plate (25) pushes the material (7) horizontally to the cutting station of the cutting table (11) to speed up the loading and unloading speed.

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