CN115446904A - Numerical control carbon fiber pipeline cutting machine and circular cutting method thereof - Google Patents
Numerical control carbon fiber pipeline cutting machine and circular cutting method thereof Download PDFInfo
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- CN115446904A CN115446904A CN202211323613.XA CN202211323613A CN115446904A CN 115446904 A CN115446904 A CN 115446904A CN 202211323613 A CN202211323613 A CN 202211323613A CN 115446904 A CN115446904 A CN 115446904A
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- 238000005520 cutting process Methods 0.000 title claims abstract description 136
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 43
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 43
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003698 laser cutting Methods 0.000 claims abstract description 33
- 239000000428 dust Substances 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 11
- 230000008859 change Effects 0.000 claims abstract description 6
- 238000013519 translation Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000005498 polishing Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000000608 laser ablation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
- B26D1/157—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis
- B26D1/18—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable carriage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
Abstract
The application relates to a numerical control carbon fiber pipeline pipe cutting machine and a circular cutting method thereof. Comprises a circular ring retainer, a rotary cutting frame, a cutter conversion seat and a rotary saw blade cutting depth control structure. This application is installed rotatory saw bit and laser crop on a cutter conversion seat, when carrying out the carbon fiber pipeline cutting of heavy wall thickness, at first adopt the saw bit circular cutting, get rid of most material of cutting position, only keep last one deck carbon fiber, then automatic change becomes the laser cutting head, use the laser cutting head ring to downcut last one deck surplus carbon fiber layer, can prevent through the pipe cutting machine and the circular cutting method of this application that the dust gets into inside the pipeline in the cutting process, make the incision deformation of cutting position minimum simultaneously, convenient follow-up processing of polishing.
Description
Technical Field
The invention relates to machining equipment, in particular to pipe cutting equipment.
Background
The circular rotary saw blade is used for cutting a pipeline along the section direction, which is the basic working principle of most of pipe cutting machines at present, but the pipe cutting machine is usually only suitable for cutting the pipeline with small pipe diameter. For large diameter pipes used in large projects, the thick wall thickness is often accompanied, and the pipes need to be cut in a circular cutting mode by a special circular pipe cutting machine.
The circular cutting pipe cutting machine can perform circular cutting on a pipeline usually by adopting a laser cutting or saw blade cutting mode, but for the pipelines made of carbon fiber materials with large diameters and large wall thicknesses, if the pipelines are cut by adopting the saw blade, a large amount of carbon fiber dust can be generated, the carbon fiber dust is difficult to clean, and especially dust entering the interior of the pipeline cannot be effectively cleaned and detected; and adopt laser cutting, to the great carbon fiber pipeline of wall thickness, laser ablation can lead to incision position deformation serious, increases the follow-up processing degree of difficulty of polishing, can reduce carbon fiber pipeline's intensity simultaneously.
Based on above technical problem, need design a special circular cutting pipe cutting machine to major diameter major wall thickness carbon fiber pipeline for it can prevent among the cutting process dust to get into inside the pipeline, makes the incision deformation minimum of cutting position simultaneously, makes the follow-up processing of polishing of convenience.
Disclosure of Invention
The invention aims to provide a numerical control carbon fiber pipeline pipe cutting machine and a circular cutting method thereof, and aims to solve the technical problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a numerical control carbon fiber pipeline pipe cutting machine comprises a circular ring retainer for positioning and installing the pipe cutting machine on the outer wall of a pipeline; meanwhile, a rotary cutting frame is connected with the circular ring retainer and sleeved on the outer wall of the pipeline, a tool apron is arranged on the rotary cutting frame, and the tool apron can rotate around the periphery of the pipeline along the rotary cutting frame through a rotary driving structure arranged in the rotary cutting frame; the method is characterized in that:
the cutter seat is provided with a cutter conversion seat which can rotate relative to the cutter seat, and a rotary saw blade cutter and a laser cutting head are arranged on the cutter conversion seat;
still include rotatory saw bit depth of cut control structure, rotatory saw bit depth of cut control structure includes controller, infrared distance sensor, linear motor, infrared distance sensor is used for detecting the actual radial depth of feed that rotatory saw bit cutter got into the pipeline surface, linear motor is used for realizing the radial feed motion of rotatory saw bit cutter, the controller stops radial feed through detecting the change trend of the difference value of the actual radial depth of feed of rotatory saw bit cutter and the reference radial depth of feed to can leave the surplus lamina after making rotatory saw bit cutter circular cut.
Preferably, the tool changing seat is connected with the tool apron through a main shaft capable of rotating under the driving of a motor, so that the tool changing seat rotates relative to the tool apron.
Preferably, a dust suction device is further arranged at the position of the circular cutting of the pipeline, and the dust suction device can collect dust generated outside the pipeline in the cutting process.
Preferably, the rotary saw blade tool and the laser cutting head can be radially aligned with the center of the pipe, respectively, by rotation of the tool changer.
Preferably, the difference between the actual radial feed depth of the rotary saw blade tool and the reference radial feed depth is generated by a proportional controller.
A circular cutting method of a numerical control carbon fiber pipeline cutting machine is characterized by comprising the following steps: the method comprises the following steps:
s1: plugging two ends of a pipeline to be cut, installing a circular ring retainer of a pipe cutting machine on the pipeline, enabling a rotary cutting frame to be located at a cutting position by adjusting a telescopic translation cylinder, and enabling a rotary saw blade cutter to be radially aligned to the center of the pipeline by rotating a cutter conversion seat;
s2: the rotary saw blade cutter is driven to rotate and simultaneously the linear motor is driven to feed in the radial direction, so that the rotary saw blade cutter cuts along the radial direction of the pipeline;
s3: when the laser ranging sensor detects that the radial feed of the rotary saw blade cutter is cut to a distance of penetrating through the wall of the pipeline and only one thin layer is left, the radial feed of the rotary saw blade cutter is stopped, and then the cutter holder is driven to rotate for a circle along the rotary cutting frame, so that the rotary saw blade cutter finishes removing materials for the circle of the pipeline;
s4: and rotating the cutter conversion seat to enable the laser cutting head to be radially aligned with the center of the pipeline, opening the laser cutting head and simultaneously driving the cutter seat to rotate for a circle along the rotary cutting frame, so that the laser cutting head finishes cutting the last thin layer of the pipeline wall, and the pipe cutting work of the pipeline is finished.
Preferably, in step S3, a difference between the actual radial feed depth of the rotary saw blade tool and the reference radial feed depth is generated by a proportional controller, and when the controller detects that the difference changes from positive to negative, the linear motor is controlled to stop the radial feed.
The invention has the beneficial effects that:
1. the utility model provides a circular cutting pipe cutting machine adopts saw bit cutting and laser cutting simultaneously, and rotatory saw bit and laser crop are installed on a cutter conversion seat, when the carbon fiber pipeline cutting of big wall thickness, at first adopt the saw bit circular cutting, get rid of most materials in cutting position, only remain last one deck carbon fiber, then automatic change becomes the laser cutting head, uses the laser cutting head ring to downcut the remaining carbon fiber layer of last one deck. When the saw blade is used for cutting, the end part of the pipeline is blocked, and a dust suction device is arranged beside the saw blade. Through the process and the pipe cutting machine structure, most of the carbon tubes with thick walls can be cut by the saw blade, the cutting efficiency is improved, the cutting deformation is reduced, and meanwhile, because a thin layer of carbon fibers is cut, dust cannot enter the carbon fiber pipeline and can be directly sucked away by a dust collector; the residual last layer of thin layer is cut by the laser cutting head, so that the influence of the laser cutting on the deformation of the end of the pipeline is reduced to the maximum extent;
2. considering that the carbon fiber pipe belongs to a hard and brittle material in the length direction, when the radial feeding of the saw blade is controlled, the technical scheme that the feeding is stopped when the force and the torque reach the threshold value in the prior art is abandoned, the input of a control system is not a force signal but a slope type position signal aiming at the radial feeding motion of the saw blade, the difference value between the actual radial feeding depth and the reference radial feeding depth of the rotary saw blade tool is generated through a proportional controller, the slope inflection point of the difference value is detected, then the radial saw blade feeding is stopped, and the last thin layer is left.
Drawings
FIG. 1 is a schematic side view of the construction of a pipe ring cutter of the present application;
FIG. 2 is a block diagram of a tool changer according to the present application;
FIG. 3 is a schematic diagram of the pipe cutting steps of the pipe cutter of the present application;
FIG. 4 is a schematic view of a blade cutting head of the present application cutting a residual lamina structure;
FIG. 5 is a schematic view of a depth control structure of the rotary saw blade of the present application;
FIG. 6 is a schematic illustration of the difference between the actual radial feed depth and the reference radial feed depth for the rotary saw blade tool of the present application;
fig. 7 is a diagram illustrating the variation trend of the difference value of the feeding depth of the present application.
Detailed Description
The following detailed description of the preferred embodiments will be made with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a circular pipe cutting machine according to the present invention. It includes: the circular ring holder 1 and the rotary cutting frame 3, and the circular ring holder 1 and the rotary cutting frame 3 are both in an annular frame structure. The end face of one side of the circular ring holder 1 is uniformly and fixedly provided with three telescopic clamping cylinders 2 along the circumferential direction, each telescopic clamping cylinder 2 is provided with a cylinder part and a telescopic rod part, the cylinder parts are fixedly arranged on the end face of the circular ring holder 1 along the radial direction of the circular ring holder 1, and the mounting mode comprises but is not limited to bolt, welding and other fixing modes. A clamping plate is arranged at the free end of the telescopic rod part of the telescopic clamping cylinder 2. The three evenly distributed telescopic clamping cylinders 2 finally enable the clamping plates to be in contact with the periphery of the pipeline P to be compressed through the movement of the telescopic rod parts, and the pipe ring retainer 1 is fixed on the periphery of the pipelines P with different outer diameter sizes through the three clamping plates. Three telescopic translation cylinders 4 are uniformly distributed on the end face of the other side of the circular ring holder 1 along the circumferential direction, each telescopic translation cylinder 4 is provided with a cylinder body part and a telescopic rod part, and the cylinder body parts of the telescopic translation cylinders 4 are fixedly installed on the end face of the circular ring holder 1 in a hinged mode along the vertical direction of the end face of the circular ring holder 1. And a ball head connecting structure is arranged at the free end of the telescopic rod part of the three telescopic translation cylinders 4. The rotary cutting frame 3 is connected with the telescopic translation cylinder 4 through the three ball head connecting structures, so that the circular ring retainer 1 is connected with the rotary cutting frame 3. Through the removal of three flexible translation cylinders 4, the angle of adjustable rotatory cutting frame 3 and pipeline P realizes the cutting of different groove angles. On the rotary cutting frame 3, a tool holder 5 is provided, the tool holder 5 being mounted with a tool 7 facing radially inwards of the rotary cutting frame 3. The tool apron 5 is a motor-driven inner gear ring type rotary driving structure through a rotary driving structure (not shown) arranged in the rotary cutting frame 3, the tool apron 5 is arranged on an inner gear ring gear which is rotatably arranged on the rotary cutting frame, and the motor-driven inner gear ring fixedly arranged on the rotary cutting frame, so that the tool apron 5 can rotate along the rotary cutting frame 3 and rotate around the periphery of the pipeline P. Through the rotary driving structure, the circumferential cutting of the periphery of the pipeline by the cutter 7 on the cutter holder 5 is realized, and finally the pipeline cutting work is finished. On the surface of the tool holder 5 facing the pipe P side, a laser ranging sensor 8 is further provided, which laser ranging sensor 8 can detect the radial distance of the tool 7 entering the pipe P surface on the one hand, and can detect the spatial position of the tool holder 5 on the other hand, for controlling the position of the tool holder 5. Between the tool 7 and the holder 5, a linear motor 6 is also mounted. The linear motor 6 can drive the cutter 7 to reciprocate at high frequency along the radial direction of the rotary cutting frame 3, thereby realizing the radial feeding of the cutter 7. The pipe cutting machine is also provided with a controller 10 connected with the linear motor 6 and the laser ranging sensor 8 and used for controlling the operation of the linear motor 6 through the measurement of the laser ranging sensor 8.
Above pipe cutting machine structure examination is used for the cutting operating mode of the overwhelming majority of pipelines, however, to the technical problem of the cutting thick wall carbon fiber pipeline that this application will solve, this application has still improved to above-mentioned ring cutting formula pipe cutting machine drive blade holder 5 and cutter 7 part. As shown in fig. 2, a tool changer 9 is disposed on the tool apron 5, the tool changer 9 is a conventional motor-driven spindle rotating mechanism, and the tool changer 9 is connected to the tool apron 5 through a spindle that can be driven to rotate by a motor, so as to rotate the tool changer 9 relative to the tool apron 5. On the tool changing base 9, two sets of tools for cutting the carbon fiber pipe are provided, respectively, a rotary saw blade tool 71 and a laser cutting head 72. By the rotation of the tool change seat 9, the rotary saw blade tool 71 and the laser cutting head 72 can be radially aligned with the center of the pipe, respectively. The rotary blade cutter 71 can be driven by a rotary motor to complete the removal of the pipe material by the high speed rotation of the blade. Between the rotary blade tool 71 and the laser cutting head 72 and the tool changing base 9, linear motors 61 and 62 are provided, respectively, for radial feeding of the rotary blade tool 71 and the laser cutting head 72, respectively. In addition, at the pipe circular cutting position, a dust suction device (not shown) is further provided, which is a conventional negative pressure dust suction device, and the dust suction port faces the cutting position, and which can collect dust generated outside the pipe during the cutting process.
For pipelines made of carbon fiber materials with large diameters and large wall thicknesses, if a saw blade is used for cutting, a large amount of carbon fiber dust can be generated, the carbon fiber dust is not easy to clean, and especially, dust entering the interior of the pipelines cannot be effectively cleaned and detected; and adopt laser cutting, to the great carbon fiber pipeline of wall thickness, laser ablation can lead to incision position deformation serious, increases the follow-up processing degree of difficulty of polishing, can reduce carbon fiber pipeline's intensity simultaneously. Therefore, in order to solve the technical problems, the method comprises the following steps of cutting the thick-wall carbon fiber pipeline. As shown in fig. 3-4, are schematic diagrams of the steps for cutting a carbon fiber pipe according to the present application.
S1: plugging two ends of a pipeline to be cut, installing a circular ring retainer of a pipe cutting machine on the pipeline, enabling a rotary cutting frame to be located at a cutting position by adjusting a telescopic translation cylinder, and enabling a rotary saw blade cutter to be radially aligned to the center of the pipeline by rotating a cutter conversion seat;
s2: the rotary saw blade cutter is driven to rotate and simultaneously drives the linear motor to feed in the radial direction, so that the rotary saw blade cutter cuts along the radial direction of the pipeline;
s3: when the laser ranging sensor detects that the radial feed of the rotary saw blade cutter is cut to a distance of penetrating through the wall of the pipeline and only one thin layer is left, the radial feed of the rotary saw blade cutter is stopped, an annular region T shown in figure 4 is the part of the thin layer left after the circular cutting of the saw blade, and then the cutter holder is driven to rotate for a circle along the rotary cutting frame, so that the rotary saw blade cutter finishes the material removal for one circle of the pipeline;
s4: and rotating the cutter conversion seat to enable the laser cutting head to be radially aligned with the center of the pipeline, opening the laser cutting head and simultaneously driving the cutter seat to rotate for a circle along the rotary cutting frame, so that the laser cutting head finishes cutting the last thin layer of the pipeline wall, and the pipe cutting work of the pipeline is finished.
According to above pipe cutting machine structure and pipe cutting step, the circular cutting pipe cutting machine adopts saw bit cutting and laser cutting simultaneously, and rotatory saw bit and laser cutting head are installed on a converter, when carrying out the carbon fiber pipeline cutting of big wall thickness, at first adopt the saw bit circular cutting, get rid of most materials in cutting position, only remain last one deck carbon fiber, then automatic change becomes the laser cutting head, uses the laser cutting head ring to cut down the remaining carbon fiber layer of last one deck. When the saw blade is used for cutting, the end part of the pipeline is blocked, and a dust suction device is arranged at the edge of the saw blade. Through the process and the pipe cutting machine structure, most of the carbon tubes with thick walls can be cut by the saw blade, the cutting efficiency is improved, the cutting deformation is reduced, and meanwhile, because a thin layer of carbon fibers is cut, dust cannot enter the carbon fiber pipeline and can be directly sucked away by a dust collector; and the residual last layer of thin layer is cut by the laser cutting head, so that the influence of the laser cutting on the deformation of the end of the pipeline is reduced to the maximum extent.
In step S3 of the above step, it is involved that the radial feed cut of the rotary saw blade tool is detected by the laser range sensor to be a distance that leaves only a thin layer through the pipe wall. Because the error of ring cutting device location and manufacturing etc. if only adopt the scheme of setting for saw bit depth of cut through infrared distance sensor to leave the thin layer, have the penetrating possibility of mistake, consequently, except that the depth of cut to the saw bit is set for and is left the thin layer, this application has still designed the control mode that prevents the saw bit mistake and pierce through.
Fig. 5 is a schematic view of a depth control structure of the rotary saw blade used in the present application. The control system includes a controller 10, an infrared distance sensor 8, and a linear motor 61 corresponding to a rotary blade cutter 71. The controller 10 selects the TMS370C series single chip microcomputer according to the requirements of the cutting working environment, can provide real-time system control, and has the advantages of low working power consumption, wide working temperature range, noise suppression and the like. The controller 10 is connected to the infrared distance sensor 8 and the linear motor 61 corresponding to the rotary blade cutter 71. Considering that the carbon fiber tube is a hard and brittle material in the length direction, when the radial feeding of the saw blade is controlled, the technical scheme of detecting the force and torque reaching the threshold value to stop feeding in the prior art is abandoned, the input of the controller 10 is not a force signal but a ramp type position signal, the position signal is provided by an infrared distance sensor 8, as shown in fig. 6, the slope of the ramp position signal is equal to the required translational feeding speed, a depth-time reference signal (solid line part in fig. 6) of a linear motor 61 for radial feeding is set, meanwhile, an optical reflector is arranged on the saw blade base, the actual depth-time signal (dotted line part in fig. 6) of the radial movement of the optical reflector on the saw blade is detected by the infrared distance sensor 8, and then, the difference (Xerr) between the reference position (Xref) and the position (X) measured by the infrared distance sensor 8 is generated by a proportional controller. In the process of cutting the saw blade into the pipe wall, when the saw blade just contacts the pipe wall, the difference value Xerr inevitably increases due to the obstruction of the pipe wall, and along with the drilling of the saw blade, when the saw blade approaches the edge of the inner wall of the pipe wall, the radial feeding speed of the saw blade inevitably increases due to the fact that the whole pipe wall structure is fragile, and as shown in FIG. 7, the difference value Xerr suddenly decreases. The slope of the Xerr time-domain signal is positive and becomes negative at a certain inflection point A. The idea of the invention is to detect this difference slope inflection point and then stop the radial blade feed, thereby leaving the last layer of film.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A numerical control carbon fiber pipeline pipe cutting machine comprises a circular ring retainer for positioning and installing the pipe cutting machine on the outer wall of a pipeline; meanwhile, a rotary cutting frame is connected with the circular ring retainer and sleeved on the outer wall of the pipeline, a tool apron is arranged on the rotary cutting frame, and the tool apron can rotate around the periphery of the pipeline along the rotary cutting frame through a rotary driving structure arranged in the rotary cutting frame; the method is characterized in that:
the cutter seat is provided with a cutter conversion seat which can rotate relative to the cutter seat, and a rotary saw blade cutter and a laser cutting head are arranged on the cutter conversion seat; still include rotatory saw bit depth of cut control structure, rotatory saw bit depth of cut control structure includes controller, infrared distance sensor, linear motor, infrared distance sensor is used for detecting the actual radial depth of feed that rotatory saw bit cutter got into the pipeline surface, linear motor is used for realizing the radial feed motion of rotatory saw bit cutter, the controller stops radial feed through detecting the change trend of the difference value of the actual radial depth of feed of rotatory saw bit cutter and the reference radial depth of feed to can leave the surplus lamina after making rotatory saw bit cutter circular cut.
2. The numerical control carbon fiber pipe cutting machine according to claim 1, wherein: the cutter conversion seat is connected with the cutter holder through a main shaft which can rotate through the driving of a motor, and the rotation of the cutter conversion seat relative to the cutter holder is realized.
3. The numerical control carbon fiber pipe cutting machine according to claim 2, wherein: and a dust suction device is also arranged at the position of the pipeline circular cutting, and can collect dust generated outside the pipeline in the cutting process.
4. A numerically controlled carbon fiber pipe cutter as defined in claim 3, wherein: through the rotation of the cutter conversion seat, the rotary saw blade cutter and the laser cutting head can be respectively aligned to the center of the pipeline in the radial direction.
5. The numerical control carbon fiber pipe cutting machine according to claim 4, wherein: a difference between the actual radial feed depth of the rotary saw blade tool and the reference radial feed depth is generated by a proportional controller.
6. The circular cutting method of the numerical control carbon fiber pipe cutting machine according to any one of claims 1 to 5, wherein: the method comprises the following steps:
s1: plugging two ends of a pipeline to be cut, installing a circular ring retainer of a pipe cutting machine on the pipeline, enabling a rotary cutting frame to be located at a cutting position by adjusting a telescopic translation cylinder, and enabling a rotary saw blade cutter to be radially aligned to the center of the pipeline by rotating a cutter conversion seat;
s2: the rotary saw blade cutter is driven to rotate and simultaneously drives the linear motor to feed in the radial direction, so that the rotary saw blade cutter cuts along the radial direction of the pipeline;
s3: when the laser ranging sensor detects that the radial feed of the rotary saw blade cutter is cut to a distance of penetrating through the wall of the pipeline and only one thin layer is left, the radial feed of the rotary saw blade cutter is stopped, and then the cutter holder is driven to rotate for a circle along the rotary cutting frame, so that the rotary saw blade cutter finishes removing materials for the circle of the pipeline;
s4: and rotating the cutter conversion seat to enable the laser cutting head to be radially aligned with the center of the pipeline, opening the laser cutting head and simultaneously driving the cutter seat to rotate for a circle along the rotary cutting frame, so that the laser cutting head finishes cutting the last thin layer of the pipeline wall, and the pipe cutting work of the pipeline is finished.
7. The circular cutting method of the numerical control carbon fiber pipe cutting machine according to claim 6, characterized in that: in step S3, a difference value between the actual radial feed depth of the rotary saw blade tool and the reference radial feed depth is generated by the proportional controller, and when the controller detects that the difference value changes from positive to negative, the linear motor is controlled to stop the radial feed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116423068A (en) * | 2023-06-12 | 2023-07-14 | 山东鲁旺机械设备有限公司 | Pipe fitting cutting device for production of building hanging basket |
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| CN113319582A (en) * | 2021-03-01 | 2021-08-31 | 佛山汇百盛激光科技有限公司 | Cutting compounding machine of tubular product and section bar |
| CN113369716A (en) * | 2021-07-02 | 2021-09-10 | 济南鼎点数控设备有限公司 | Numerical control laser pipe cutting machine and circular cutting method thereof |
| CN115233526A (en) * | 2022-07-22 | 2022-10-25 | 民航机场建设工程有限公司 | Rail type airfield pavement cutting operation mechanical machine and cutting seam finish cutting forming method |
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| CN116423068A (en) * | 2023-06-12 | 2023-07-14 | 山东鲁旺机械设备有限公司 | Pipe fitting cutting device for production of building hanging basket |
| CN116423068B (en) * | 2023-06-12 | 2023-08-18 | 山东鲁旺机械设备有限公司 | Pipe fitting cutting device for production of building hanging basket |
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