Full-automatic pipe cutting machine based on aluminum pipe machining and pipe cutting method

Abstract

The invention discloses a full-automatic pipe cutting machine based on aluminum pipe machining and a pipe cutting method, and relates to the technical field of pipe cutting machines. The full-automatic pipe cutting machine based on aluminum pipe machining comprises distance adjusting dust collection pieces, each distance adjusting dust collection piece comprises a connecting cylinder, each connecting cylinder is formed by alternately connecting a plurality of flat plates and arc plates, the arc plates are connected with connecting pipes through threaded pipes, and dust collection openings are formed in the middles of the outer sides of the connecting pipes; and the flat plate is in sliding connection with a plurality of inner wall suitable pressing pieces which are distributed at equal intervals, and the inner wall suitable pressing pieces are used for abutting against the non-cutting positions of the inner walls of the materials under the action of elastic force and are matched according to the cutting length. According to the full-automatic pipe cutting machine based on aluminum pipe machining and the pipe cutting method, the extending radius of the supporting plate and the pressure between the supporting plate and the inner wall of a material are changed through the air pressure effect, the possibility that the material deforms or burrs are generated in the cutting process is reduced, the distance adjusting dust suction part is matched with the inner wall adaptive pressing part, and chippings generated on the inner side of the material are absorbed in time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe cutting machines, in particular to a full-automatic pipe cutting machine based on aluminum pipe processing and a pipe cutting method. BACKGROUND

[0002] The full-automatic pipe cutting machine is a high-efficiency and precise device for aluminum pipe processing, which can realize a series of operations such as automatic feeding, fixed-length cutting and discharging of aluminum pipes.

[0003] Referring to Chinese patent classification number CN104475856A, a special cutting system for an aluminum pipe trimming machine tool includes an overhead base, a cylinder frame, a cylinder one, a cylinder floating joint, a tool holder seat, a dust baffle, a sliding block, a track, a cutter connecting rod one, a cutter fulcrum seat, a cutter connecting rod two, a cutter, a cutter seat and a cylinder two, the overhead base is provided with the cylinder frame on the left side of the upper end face, the cylinder one is installed on the cylinder frame, the cylinder one is connected with the cylinder floating joint on the right side, the cylinder two is installed on the left side of the upper end face of the tool holder seat, the upper end of the cylinder two is hinged with the left side of the cutter connecting rod one, the middle part of the cutter connecting rod one is hinged with the upper part of the cutter fulcrum seat, the lower end of the cutter fulcrum seat is fixedly installed on the middle part of the upper end face of the tool holder seat, the lower half of the cutter is sleeved in the cutter seat, and the cutter seat is installed on the right side of the upper end face of the cutter connecting rod two. The length of the aluminum pipe is controlled by one cylinder, and the other cylinder controls the cutter to cut off the aluminum pipe by the lever principle. This way has reasonable structure and high processing efficiency.

[0004] The aluminum pipe is relatively soft, especially when the pipe wall is thin. If there is no inner wall support, only the external clamping force is concentrated on the bottom and top of the aluminum pipe, the unit area stress is large, and the aluminum pipe is easy to deform. During the cutting process, the aluminum pipe may jump or displace due to the lack of internal support, resulting in a large amount of burrs at the cutting edge, and even the cutting length is not accurate, the cutting edge is inclined, etc., which seriously affects the cutting precision and product quality. The size of the inner wall support is difficult to adjust, and it is difficult to adapt to aluminum pipes of different diameters or wall thicknesses. The traditional inner wall support adjustment method may be relatively complex. The space inside the cutting edge is narrow, and the dust suction port is difficult to directly act on this place. In addition, the debris may be attached to the pipe wall due to electrostatic adsorption, friction and other factors. The debris inside the cutting edge of the aluminum pipe after cutting is not easy to collect. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a full-automatic pipe cutting machine based on aluminum pipe processing and a pipe cutting method. By changing the extension radius of the support plate and the pressure between the support plate and the inner wall of the material through gas pressure, the possibility of deformation or burr generation of the material during cutting is reduced. The diameter of the distance adjustment dust collection element is changed to match the distance adjustment dust collection element and the inner wall pressure element, and the debris generated inside the material is timely absorbed.

[0006] Technical solution: To achieve the above object, the present application is realized by the following technical solutions: An automatic pipe cutting machine based on aluminum pipe processing, comprising: a cutting table, one end of the top of the cutting table is rotatably connected with a first rotating shaft through a driver, the first rotating shaft is sleeved with a plurality of equally spaced distance adjusting dust suction members, each distance adjusting dust suction member comprises: a connecting cylinder, the connecting cylinder is composed of a plurality of flat plates and arc plates connected alternately, the arc plate is connected with a connecting pipe through a threaded pipe, adjacent connecting pipes are connected through an extension pipe, a dust suction port is formed in the middle of the outer side of the connecting pipe, the flat plate is slidingly connected with a plurality of equally spaced inner wall pressure adjusting members, the inner wall pressure adjusting members are used to abut against the non-cutting part of the material inner wall under the action of elastic force and adapt to the cutting length.

[0007] Preferably, each distance adjusting dust suction member further comprises: an extension pipe, the extension pipe is arranged between adjacent connecting pipes, both ends of each extension pipe are respectively connected with the side of the adjacent connecting pipe close to each other, an inner nut is arranged on the inner side of the connecting pipe, an outer nut is arranged on the outer side of the connecting pipe, the inner nut and the outer nut are threadedly connected with the threaded pipe, the distance between the connecting pipe and the connecting cylinder is adjusted by screwing the inner nut and the outer nut, and the connecting pipe is adapted to the material inner wall, a plurality of connecting pipes are equally distributed in the circumferential direction, a ventilation hole is formed in one side or both sides of one of the connecting pipes, and a sliding groove is formed in the side surface of each flat plate.

[0008] Preferably, the dust suction port is a trapezoidal shape, the two waist lines gradually shrink along the virtual straight line, the opening area of the dust suction port close to the connecting cylinder is smaller than the opening area of the dust suction port away from the connecting cylinder, a dust suction cavity is formed in the connecting pipe, and the dust suction cavity is connected with the dust suction port.

[0009] Preferably, adjacent distance adjusting dust suction members are connected through a dust suction pipe, one distance adjusting dust suction member is connected with a dust collector through a dust outlet pipe, one distance adjusting dust suction member is arranged between adjacent inner wall pressure adjusting members, and the distance between adjacent distance adjusting dust suction members is equal to the length of the standard cutting member.

[0010] Preferably, the inner wall pressure fitting comprises: sliding blocks, each of the sliding blocks is in sliding connection with a sliding groove, the side surface of each of the sliding blocks is connected with one side of a scale plate, one side of each of the scale plates is connected with a side cylinder, a plurality of side cylinders are equidistantly distributed in the circumferential direction of the connecting cylinder, one end of each of the side cylinders is provided with a placing groove, the inside of each of the side cylinders is provided with a cavity, the cavity is in communication with the bottom of the placing groove, the cavity is in sliding connection with a pneumatic plate, the pneumatic plate is connected with a support plate through a spring, the cavities are in communication through air pipes, the support plate is matched with the inner wall of the material, adjacent side cylinders are provided with connecting arc strips, the side surface of the middle part of one or more connecting arc strips is provided with a threaded hole, the threaded hole is in threaded connection with a fastening bolt, one end of the fastening bolt is in abutment with an arc surface, the side surface of the support plate is provided with a groove, the groove is connected with a pressure sensor, the surface of the support plate and the surface of the pressure sensor are located on the same arc surface, and the pressure sensor is used for measuring the pressure between the support plate and the inner wall of the material in real time.

[0011] Preferably, the flat plate is a scale plate, the scale plate is composed of a circular plate and a ruler plate, the circular plate is matched with the side cylinder, the ruler plate is parallel to the scale lines of the scale plate, the inner wall pressure fitting is driven by moving the scale plate, and the distance between adjacent inner wall pressure fittings is equal to the length of the standard cutting piece.

[0012] Preferably, the inner side arc surface of the support plate and the outer side arc surface of the connecting pipe are matched arc surfaces, the cutting area is arranged between adjacent inner wall pressure fittings, each distance adjusting dust collection piece is placed on the inside of the cutting area, the width of the cutting area is the same as the width of the dust collection port close to one side of the connecting cylinder, adjacent inner wall pressure fittings are in communication through a main pipe, and one end of the main pipe is in communication with the air outlet end of the air blower.

[0013] Preferably, one end of the cutting table is provided with a discharging channel, a first motor is arranged above the discharging channel, a fixed end of the first motor is connected with a supporting table, a rotating end of the first motor is rotatably connected with a lead screw, the lead screw is threadedly connected with a moving nut, the moving nut is connected with a silk cylinder on the outside, the silk cylinder is connected with a push plate on the side, the push plate is used for pushing the material on the supporting table to the cutting station of the cutting table, a positioning plate is connected with the edge of the cutting table, the positioning plate is slidably connected with a moving cylinder, one side of the moving cylinder is connected with a first hydraulic cylinder through a first connecting plate, a telescopic end of the first hydraulic cylinder is connected with a rotating plate through a movable piece, the top of the rotating plate is connected with a cutter, the rotating end of the cutter is connected with the rotating end of a second motor through a belt pulley, both ends of the top of the moving cylinder are connected with side plates, a second rotating shaft is arranged between the two side plates, the side surface of the top of the second rotating shaft is connected with the bottom of the rotating plate, the top of one end of the moving cylinder is connected with a second hydraulic cylinder through a second connecting plate, a telescopic end of the second hydraulic cylinder is connected with a moving plate, the bottom of the moving plate is semicircular, the diameter of the bottom of the moving plate is equal to the diameter of the supporting 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 pipe processing is applied to a full-automatic pipe cutting machine based on aluminum pipe processing, the inner wall pressure adapting piece is horizontally moved, the width of the inner wall pressure adapting piece is adapted to the length of the standard cutting piece, the whole inner wall pressure adapting piece is quickly fixed with the cambered surface through the threaded pipe, the diameter of the distance adjusting dust suction piece is changed, the distance adjusting dust suction piece is adapted to the inner wall pressure adapting piece, the debris inside the material is timely absorbed through the adapted dust suction port of the distance adjusting dust suction piece, after the material is completely cut, the moving plate moving downward abuts against one side of a section of the material and pushes all the material to horizontally move and enter the discharging channel, the push plate horizontally pushes the material to the cutting station of the cutting table, and the speed of feeding and discharging is accelerated.

[0015] Beneficial effects: the full-automatic pipe cutting machine and the pipe cutting method based on aluminum pipe processing are provided.Compared with the prior art, the following beneficial effects are achieved: 1, the inner wall pressure adapting piece is horizontally moved, the extending radius of the supporting plate and the pressure between the supporting plate and the inner wall of the material are changed through the action of air pressure, when the material is fed, the diameter of the supporting plate is smaller than the diameter of the material, before cutting, the supporting plate extrudes the material and reaches the standard supporting force, the possibility that the material is deformed or burrs are generated in the cutting process is reduced, the diameter of the distance adjusting dust suction piece is changed, the distance adjusting dust suction piece is adapted to the inner wall pressure adapting piece, and the debris inside the material is timely absorbed through the dust suction port.

[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 Another perspective structural diagram.

[0023] Figure 3 For the structure diagram of the first motor, lead screw, moving nut, lead cylinder, push plate.

[0024] Figure 4 For Figure 1 The structure diagram after removing the support table and the part where the lead screw is located.

[0025] Figure 5 For Figure 4 The structure diagram after removing the blanking channel.

[0026] Figure 6 For the structure diagram of the cutter, moving plate, moving cylinder.

[0027] Figure 7 For the structure diagram of the material inside.

[0028] Figure 8 For the structure diagram of the distance adjustment dust collection part and the inner wall pressure adjusting part.

[0029] Figure 9 For the structure diagram of the connecting pipe, telescopic pipe, threaded pipe, spring, support plate.

[0030] Figure 10 For the structure diagram of the distance adjustment dust collection part.

[0031] Figure 11 For the structure diagram of the connecting cylinder, flat plate, arc plate, sliding groove, connecting pipe, telescopic pipe, threaded pipe.

[0032] Figure 12 For the structure diagram of one end of the connecting pipe.

[0033] Figure 13 For the structure diagram of the inner wall pressure adjusting part.

[0034] Figure 14 For Figure 13 The structure diagram after removing the support plate.

[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 14The present application provides a full-automatic pipe cutting machine based on aluminum pipe processing, which comprises a cutting table 11, one end of the top of the cutting table 11 is rotationally connected with a first rotating shaft 16 through a driver 12, the first rotating shaft 16 is sleeved with a plurality of equally spaced distance adjusting dust suction members 5, each distance adjusting dust suction member 5 comprises a connecting cylinder 51, the connecting cylinder 51 is composed of a plurality of flat plates 511 and arc plates 512 which are alternately connected, the arc plate 512 is connected with a connecting pipe 52 through a threaded pipe 54, adjacent connecting pipes 52 are connected through telescopic pipes 53, a dust suction port 58 is formed in the middle of the outer side of the connecting pipe 52, the flat plate 511 is slidingly connected with a plurality of equally spaced inner wall pressure adapting members 6, the inner wall pressure adapting member 6 is used to abut against the non-cutting part of the inner wall of the material 7 under the action of the elastic force and adapt to the cutting length.

[0039] Each distance adjusting dust suction member 5 further comprises a telescopic pipe 53, the telescopic pipe 53 is arranged between adjacent connecting pipes 52, both ends of each telescopic pipe 53 are respectively connected with the side of the adjacent connecting pipe 52 close to each other, an inner tight nut 55 is arranged on the inner side of the connecting pipe 52, an outer tight nut 56 is arranged on the outer side of the connecting pipe 52, the inner tight nut 55 and the outer tight nut 56 are threadedly connected with the threaded pipe 54, the distance between the connecting pipe 52 and the connecting cylinder 51 is adjusted by screwing the inner tight nut 55 and the outer tight nut 56, and the connecting pipe 52 is adapted to the inner wall of the material 7, a plurality of connecting pipes 52 are equally spaced in the circumferential direction, a ventilation hole 57 is formed in one side or both sides of one of the connecting pipes 52, and a sliding groove 513 is formed in the side surface of each flat plate 511.

[0040] The dust suction port 58 is a trapezoidal shape, the two waist lines gradually shrink along the virtual straight line, the opening area of the dust suction port 58 close to the connecting cylinder 51 is smaller than the opening area of the dust suction port 58 away from the connecting cylinder 51, a dust suction cavity 59 is formed in the connecting pipe 52, and the dust suction cavity 59 is connected with the dust suction port 58

[0041] Adjacent distance adjusting dust suction members 5 are connected through a dust suction pipe 81, one distance adjusting dust suction member 5 is connected with a dust collector through a dust outlet pipe 82, one distance adjusting dust suction member 5 is arranged between adjacent inner wall pressure adapting members 6, and the distance between adjacent distance adjusting dust suction members 5 is equal to the length of the standard cutting member.

[0042] The inner wall pressure fitting 6 comprises: sliding blocks 66, each of which is in sliding connection with a sliding groove 513, and each of which is connected with one side of a scale plate 65, each of which is connected with a side cylinder 61 on one side, a plurality of side cylinders 61 are equidistantly distributed along the circumferential direction of the connecting cylinder 51, each of which is provided with a placing groove 68 at one end, and each of which is provided with a cavity in the inside, the cavity is in communication with the bottom of the placing groove 68, and a pneumatic plate is in sliding connection with the cavity, the pneumatic plate is connected with a support plate 63 through a spring 62, the cavities are in communication through air pipes, the support plate 63 is matched with the inner wall of the material 7, and a connecting arc strip 64 is arranged between adjacent side cylinders 61, a threaded hole is formed in the side surface of the middle part of one or more connecting arc strips 64, a fastening bolt 67 is in threaded connection with the threaded hole, one end of the fastening bolt 67 abuts against the arc surface, a recess is formed in the side surface of the support plate 63, and a pressure sensor is connected in the recess, the surface of the support plate 63 and the surface of the pressure sensor are located on the same arc surface, and the pressure sensor is used for measuring 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, the scale plate 65 is composed of a circular plate and a ruler plate, the circular plate is matched with the side cylinder 61, and the ruler plate is parallel to the scale lines of the scale plate, the inner wall pressure fitting 6 is driven by moving the scale plate 65, and the distance between adjacent inner wall pressure fittings 6 is equal to the length of the standard cutting piece.

[0044] The inner side arc surface of the support plate 63 and the outer side arc surface of the connecting pipe 52 are matched arc surfaces, a cutting area is arranged between adjacent inner wall pressure fittings 6, each distance adjusting dust collection piece 5 is placed on the inner side of the cutting area, the width of the cutting area is the same as the width of the dust collection port 58 close to one side of the connecting cylinder 51, and adjacent inner wall pressure fittings 6 are in communication through a main pipe, one end of the main pipe is in communication with the air outlet end of the air blower.

[0045] One end of the cutting table 11 is provided with a discharging channel 13, and a first motor 21 is arranged above the discharging channel 13. The fixed end of the first motor 21 is connected with a support table 14, and the rotating end of the first motor 21 is rotatably connected with a lead screw 22. The lead screw 22 is threadedly connected with a moving nut 23, and the outer side of the moving nut 23 is connected with a silk cylinder 24. The side surface of the silk cylinder 24 is connected with a push plate 25. The push plate 25 is used for pushing the material 7 on the support table 14 to the cutting station of the cutting table 11. The edge of the cutting table 11 is connected with a positioning plate 15. The positioning plate 15 is slidably connected with a moving cylinder 31. One side of the moving cylinder 31 is connected with a first hydraulic cylinder 36 through a first connecting plate 43. The telescopic end of the first hydraulic cylinder 36 is connected with a rotating plate 32 through a movable piece 37. The top of the rotating plate 32 is connected with a cutter 33. The rotating end of the cutter 33 is connected with the rotating end of a second motor 34 through a belt pulley 35. The two ends of the top of the moving cylinder 31 are both connected with side plates 41. A second rotating shaft 42 is arranged between the two side plates 41. The side surface of the top of the second rotating shaft 42 is connected with the bottom of the rotating plate 32. The top of one end of the moving cylinder 31 is connected with a second hydraulic cylinder 38 through a second connecting plate 44. The telescopic end of the second hydraulic cylinder 38 is connected with a moving plate 39. The bottom of the moving plate 39 is semicircular. 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 pipe processing is applied to a full-automatic pipe cutting machine based on aluminum pipe processing. The inner wall pressure-applying part 6 is horizontally moved, so that the width of the inner wall pressure-applying part 6 is adapted to 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 through the action of air pressure. When the material 7 is fed, the diameter of the support plate 63 is smaller than the diameter of the material 7. Before cutting, the support plate 63 extrudes the material 7 and reaches the standard support force. The entire inner wall pressure-applying part 6 is quickly fixed with the arc surface through the threaded pipe 54. The diameter of the distance-adjusting dust collection part 5 is changed, so that the distance-adjusting dust collection part 5 is adapted to the inner wall pressure-applying part 6. The distance-adjusting dust collection part 5 timely absorbs the chippings on the inner side of the material 7 through the adapted dust collection port 58. After the material 7 is completely cut, the moving plate 39 that moves downward abuts against one side of a section of the material 7 and pushes all the material 7 to move horizontally and enter the discharging channel 13. The push plate 25 horizontally pushes the material 7 to the cutting station of the cutting table 11, so as to accelerate the speed of feeding and discharging.

[0047] In use, the length of the standard cutting piece and the predetermined distance that the inner wall pressing piece 6 needs to move are determined, the fastening bolt 67 is loosened, the inner wall pressing piece 6 is no longer fixed with the connecting cylinder 51, the inner wall pressing piece 6 is horizontally moved, the sliding block 66 is moved along the direction of the sliding groove 513, plays a limiting role, the scale plate 65 is parallel to the scale on the flat plate 511, and when the scale plate 65 moves a predetermined distance, the movement is stopped, the fastening bolt 67 is tightened, one end of the fastening bolt 67 abuts against the side surface of the flat plate 511, the adjustment and fixation of the entire inner wall pressing piece 6 are quickly completed, the structure is simple, operation is convenient, and the different cutting lengths of the material 7 can be met. The outer diameter of the adjusted supporting plate 63 is equal to the inner diameter of the material 7, the supporting plate 63 is used for supporting the inner wall of the material 7, the supporting force of the supporting plate 63 is adapted to the material 7, at this time, the supporting force of the supporting plate 63 is the standard supporting force, if the material 7 is a thin-walled pipe, the wall thickness is ≤1 mm, and the diameter is ≤20 mm: Fcut≈300-800 N, such as a φ16*0.8 mm aluminum pipe, a hard alloy blade, a feed amount of 0.08 mm / r, and a cutting force of about 500 N; if the material 7 is a medium-thick-walled pipe, the wall thickness is 1-3 mm, the diameter is 20-50 mm: Fcut≈800-2000 N, such as a φ30*2 mm aluminum pipe, a feed amount of 0.12 mm / r, and a cutting force of about 1200 N; if the material 7 is a thick-walled pipe, the wall thickness is >3 mm, and the diameter is >50 mm: Fcut≈2000-4000 N, which needs to be combined with actual cutting parameter testing, the greater the feed amount and the deeper the cutting depth, the greater the cutting force.

[0048] The bottom of the placing groove 68 is also slidably connected with a pneumatic plate, one side of the pneumatic plate is connected with the spring 62, all the placing grooves 68 are communicated, the moving distance of the pneumatic plate is controlled by adjusting the air pressure intensity in the placing groove 68, the greater the air pressure intensity is, the farther the pneumatic plate is from the bottom of the placing groove 68, and the greater the unfolding radius of the supporting plate 63 is. Initially, the unfolding radius of the supporting plate 63 is small, the diameter of the supporting plate 63 is smaller than the diameter of the material 7, the supporting plate 63 is located inside the material 7 and does not hinder the material 7, so that the material 7 is conveniently moved to the cutting station, then the fan is started, the air pressure in the placing groove 68 is continuously increased, the supporting plate 63 is close to and presses the inner wall of the material 7, the surface of the supporting plate 63 is provided with a pressure sensor, the surface of the pressure sensor is located on the same arc surface as the surface of the supporting plate 63, the pressure between the supporting plate 63 and the material 7 is measured in real time through the pressure sensor, and the fan is closed after the pressure between the two reaches the standard supporting force. The aluminum pipe, especially the thin-walled and slender pipe, has weak rigidity itself, if the support is insufficient or uneven during cutting, the aluminum pipe is easy to produce radial deviation and axial bending due to cutting force; if the support is excessive, the aluminum pipe is also easy to be locally deformed due to extrusion, and the appropriate supporting force can directly improve the cutting precision. The supporting force and the cutting force are accurately offset, the aluminum pipe will not appear cutting edge skewing and cutting edge edge collapse due to unbalanced stress, and subsequent polishing and correction are not needed; the supporting force does not exceed the yield limit of the inner wall of the aluminum pipe, and local indentation or flat pipe phenomenon will not be generated, the roundness deviation of the outer diameter of the aluminum pipe after cutting can be controlled to be less than 0.03 mm, and the size requirement of subsequent assembly is met; the supporting piece is closely attached to the inner wall of the aluminum pipe without gap, the aluminum pipe does not vibrate and move during the cutting process, the blade can always cut along the preset path, and the size consistency is ensured when multiple aluminum pipes are batch cut. After cutting, subsequent operations such as deburring and roundness correction can be avoided or reduced, the working time is saved, and the work efficiency is improved.

[0049] An adjusting and dust collecting piece 5 is arranged between adjacent inner wall pressure adapting pieces 6. The position of the connecting pipe 52 is adjusted by screwing the outer nut 56 and the inner nut 55. The connecting pipe 52 is an elastic pipe. During the adjustment, the telescopic pipe 53 is in telescopic movement. The connecting pipe 52 is adapted to the inner wall pressure adapting piece 6. The gap between adjacent inner wall pressure adapting pieces 6 is opposite to the dust collecting port 58. The adjusting and dust collecting piece 5 timely absorbs the debris inside the material 7 through the adapted dust collecting port 58. When the aluminum pipe is cut, the core pain point of the inner wall debris is that the position is hidden and the conventional dust collecting port 58 is difficult to reach. Through the collaborative layout of the support plate 63 and the dust collecting pipe 81, the collection path of the inner wall debris is directly opened. The support plate 63 itself is used to support the inner wall of the material 7. The gap is just opposite to the working area of the cutting knife. The cutting knife cuts into the material 7 from the gap. The dust collecting port 58 is arranged in the gap and inside the support plate 63, which means that the dust collecting port 58 can directly aim at the contact point of the cutting knife and the inner wall of the material 7. The debris is captured by the dust collecting port 58 as soon as it is generated, avoiding the debris from scattering due to gravity and being adsorbed by static electricity in the deep cavity. When the support plate 63 supports the inner wall of the material 7, a relatively closed local space is formed inside the cavity. Only the cutting and dust collecting channels are left. The inner wall debris generated by cutting will not diffuse randomly, but will naturally flow to the dust collecting port 58 in the gap under the blocking action of the support plate 63. It is equivalent to providing a flow channel for the debris, further improving the collection efficiency. The collection rate of the conventional dust collection method, such as the external dust collecting port 58, for the inner wall debris is usually less than 30%. However, the design shortens the distance between the dust collecting port 58 and the generation point of the inner wall debris to 5-10 mm. Combined with the local negative pressure inside the cavity, the inner wall debris collection rate can be improved to more than 80%. Especially, it can effectively collect small aluminum chips with a diameter of 0.1-1 mm. Such debris is easy to be adsorbed on the pipe wall and is difficult to be cleaned by conventional methods. The dust collecting pipe 81 only occupies the gap between the support plates 63 without changing the fitting area and support intensity of the support plates 63 and the inner wall of the material 7. The support plates 63 can still provide uniform inner wall support for the material 7, offset the radial vibration caused by the cutting force, and avoid problems such as flat pipe and skewed cut during cutting of the material 7, taking into account the two core needs of “anti-deformation” and “debris collection”. After the collection effect of the inner wall debris is improved, subsequent processes such as manual cleaning of the cavity with a brush and high-pressure air blowing of the debris are no longer needed. The processing cycle of a single material 7 can be shortened by 15%-20%. At the same time, secondary pollution caused by debris remaining in the cavity is reduced, and the rework rate is reduced. The design of the dust collecting pipe 81 embedded in the gap between the support plates 63 does not need to occupy additional external space of the equipment, making the whole machine structure more compact. It can directly adapt to the continuous operation process of the full-automatic pipe cutting machine without adjusting the automatic dynamic line due to the debris collection device, improving the smoothness of the production line.

[0050] The material 7 is placed on the support table 14, the first motor 21 is started, the rotating end of the first motor 21 drives the screw rod 22 to rotate, the nut 23 moves in turn to drive the silk cylinder 24, the push plate 25 and the material 7 to move in the horizontal direction, and the material 7 is moved with the support table 14 to the cutting station of the cutting table 11.

[0051] During cutting, the second motor 34 drives the cutter 33 through the belt pulley 35, and the extension end of the first hydraulic cylinder 36 drives the rotating plate 32 and the cutter 33 to move towards the material 7 in turn, the cutter 33 cuts into the material 7 from the gap between the two inner wall pressure pieces 6, and after cutting is completed, the cutter 33 is restored to the original state under the driving of the extension end of the first hydraulic cylinder 36. The moving cylinder 31 moves in the horizontal direction with the cutter 33 to the next cutting position until the entire material 7 is cut.

[0052] After cutting is completed, the second hydraulic cylinder 38 is started, the extension end of the second hydraulic cylinder 38 drives the moving plate 39 to move vertically downwards, the moving plate 39 moves horizontally with the moving cylinder 31, the moving plate 39 is in sliding connection with the surface of the support plate 63, and the moving plate 39 pushes all the cut material 7 segments, and the material 7 segments slide into the discharging channel 13.

[0053] The present application covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present application. In order to make the public have a thorough understanding of the present application, specific details are described in the above preferred embodiments of the present application, and the present application can also be completely understood without the description of these details for those skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0054] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, several improvements and refinements can be made without departing from the principle of the present application, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A fully automatic pipe cutting machine based on aluminum tube processing, characterized in that, include: A cutting table (11) is provided. 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 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 provided in the middle of the outer side of the connecting pipe (52). The flat plate (511) is slidably connected with several equally spaced inner wall pressure fittings (6). 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 to adapt to the cutting length.

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) respectively. 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 evenly distributed in the circumferential direction. One or both sides of one of the connecting tubes (52) are provided with ventilation holes (57). Each plate (511) is provided with a sliding groove (513) on its side.

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 in shape, 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. A fully automatic pipe cutting machine based on aluminum tube processing according to claim 1, characterized in that, The inner wall pressure-adjusting component (6) includes: a slider (66), each slider (66) being slidably connected to a slide groove (513), the side of each slider (66) being connected to one side of a scale plate (65), and a side cylinder (61) being connected to one side of each scale plate (65). Several side cylinders (61) are equidistantly distributed along the circumferential direction of the connecting cylinder (51). One end of each side cylinder (61) is provided with a placement groove (68), and the interior of each side cylinder (61) is provided with a cavity. The cavity is connected to the bottom of the placement groove (68), and a pneumatic plate is slidably connected to the cavity. The pneumatic plate is connected to a support plate via a spring (62). (63) The cavities are all 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.

6. A fully automatic pipe cutting machine based on aluminum tube processing according to claim 5, characterized in that: The flat plate (511) is a scale plate. The scale plate (65) is composed of a circular plate and a ruler plate. The circular 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.

7. A fully automatic pipe cutting machine based on aluminum tube processing according to claim 5, 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.

8. 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 cylinder (24) is connected to the outside of the movable nut (23). A push plate (25) is connected to the side of the wire cylinder (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).

9. 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 1-8, 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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