Laser tube cutting machine and method of using the same

Abstract

The present invention discloses a laser pipe cutting machine, including a bed body, a feeding chuck is slidably connected to the top of the bed body, a support frame is arranged at the cutting end of the bed body, a laser cutting head mechanism is slidably connected to the top of the support frame, a fixed chuck is arranged at the position of the support frame corresponding to the feeding chuck, a control device is arranged on the outer surface of one longitudinal side of the support frame, a plurality of lifting mechanisms are equidistantly arranged on one longitudinal side of the bed body, and a first L-shaped support mounting plate is arranged on the outer surface of the bed body at one side of the cutting end. The beneficial effects of the present invention are: the present invention has a reasonable design, a stable and firm overall structure, and strong practicality, and can not only remove the smoke and dust generated on the outside and inside of the circular pipe during the cutting process, but also scrape off the slag attached to the inner wall, and can buffer and guide the circular pipe that falls after the cutting process is completed, so as to avoid it being easily affected by its own gravity and easily bumping or deformed by impact.

Description

Technical Field

[0001] The present invention relates to the field of laser cutting technology, in particular to a laser tube cutting machine and a use method thereof. Background Art

[0002] Laser tube cutting machine refers to a device that uses a laser head to emit a high-power density laser beam to perform thermal cutting on tubes. Compared with traditional physical tube cutting equipment, laser tube cutting machine has the characteristics of energy saving, easy use, space saving, safety and efficiency, and multi-functionality. It has become one of the fast tube cutting methods and has been widely used in the field of tube processing.

[0003] Chinese patent CN217193351U discloses a laser tube cutting machine with automatic feeding, including a conveying body and a laser cutting body, which can limit the front and rear sides of the circular tube to prevent the circular tube from positional deviation, reduce the wear on the surface of the circular tube, and make the circular tube more stable and smooth when moving; however, during the cutting process of the circular tube, the high-energy laser melts the metal and produces slag. Under the blowing action of the high-speed cutting gas, the slag easily enters the interior of the circular tube, and then cools and adheres to the inner wall of the circular tube, affecting the quality of the finished product. Therefore, it is necessary to use manual grinding to remove it in the later stage. At the same time, the smoke and dust generated by the cutting process will also spread to the surrounding air, causing a certain impact on the operator's body. In addition, after the circular tube is cut and processed, it is easy to be affected by its own gravity and easily bumped or deformed by impact during the process of rolling down the inclined surface to the aggregate trough, affecting the quality of the product, and even causing certain safety hazards, which needs further development and improvement. Summary of the invention

[0004] The purpose of the present invention is to provide a laser tube cutting machine and its use method in order to solve the problems that slag is easily attached to the inner wall of the existing round tube during the cutting process, and the smoke generated by the cutting process will also diffuse into the surrounding air, and the round tube will be easily affected by its own gravity when falling into the aggregate trough after the cutting process is completed, so as to solve the problems that slag is easily attached to the inner wall of the round tube during the cutting process, and the smoke generated by the cutting process will also diffuse into the surrounding air, and the round tube will be easily affected by its own gravity when falling into the aggregate trough after the cutting process is completed, so as to solve the problems that

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions: a laser pipe cutting machine, including a bed body, a feeding chuck is slidably connected to the top of the bed body, a supporting frame is arranged at the cutting end of the bed body, a laser cutting head mechanism is slidably connected to the top of the supporting frame, a fixed chuck is arranged on the supporting frame corresponding to the position of the feeding chuck, a control device is arranged on the outer surface of one longitudinal side of the supporting frame, a plurality of lifting mechanisms are equidistantly arranged on one longitudinal side of the bed body, a first L-shaped supporting mounting plate is arranged on the outer surface of the bed body at the cutting end, a second L-shaped supporting mounting plate is installed on the side of the first L-shaped supporting mounting plate laterally away from the bed body, a blanking assembly is arranged on the inner side of the first L-shaped supporting mounting plate, a dust extraction and slag removal assembly is arranged on the top of the second L-shaped supporting mounting plate, and a collecting box is arranged on one longitudinal side of the blanking assembly.

[0006] Further, the blanking assembly includes a first rotating shaft, a curved material receiving plate inclined downwardly is provided on the circumferential outer surface of the first rotating shaft, and a second rotating shaft is provided above the curved material receiving plate away from one end of the first rotating shaft, and both ends of the first rotating shaft and the second rotating shaft are respectively connected to the outer surface of one lateral side of the bed body and the inner surface of one lateral side of the first L-shaped support mounting plate, and a plurality of material stripping plates are equidistantly provided on the circumference of the outer surface of the second rotating shaft, and a first rotating motor is provided on the outer surface of the first L-shaped support mounting plate laterally away from the outer surface of one side of the bed body, and the output end of the first rotating motor passes through the first L-shaped support mounting plate and is connected to one end of the second rotating shaft, and a buffer pad is provided on the upper surface of the curved material receiving plate corresponding to the fixed chuck position, and a plurality of curved support plug-in rods are equidistantly provided on the inner surface of one longitudinal side of the first L-shaped support mounting plate, and an curved lifting connecting rod is plugged and installed at one end of the curved support plug-in rod. The arc trajectory of the arc lifting connecting rod plug-in movement is concentric with the arc trajectory of the rotating movement of the arc receiving plate, and a limiting ring is installed on the outer surface of the arc supporting plug-in rod near one end of the arc receiving plate, and a first spring is arranged on the outer side of the arc lifting connecting rod between the arc receiving plate and the limiting ring, and a fixing adjusting bolt is threadedly connected to the radial side of the limiting ring, and one end of the fixing adjusting bolt passes through the limiting ring and is connected to the arc supporting plug-in rod, which can effectively reduce the impact force of the round tube during the falling process, thereby reducing damage to equipment and tubes, extending service life, and improving operational safety. At the same time, the material stripping plate blocks and further reduces the impact force of the round tube, ensuring that the material is stably pushed into the collecting box, and the position of the limiting ring is adjusted by fixing the adjusting bolt, and with the cooperation of the first spring, the pressure required to press down the arc receiving plate can be adjusted, so that it is suitable for blanking of round tubes of different sizes.

[0007] Furthermore, the circumferential outer surfaces at both ends of the first rotating shaft and the second rotating shaft are provided with rotating bearings, and the two ends of the first rotating shaft and the second rotating shaft are connected to the outer surface of the lateral side of the bed body and the inner surface of the lateral side of the first L-shaped support mounting plate through the rotating bearings to ensure smooth rotation of the first rotating shaft and the second rotating shaft.

[0008] Furthermore, the outer surface of the material stripping plate is provided with a protective layer made of rubber material, which further reduces the impact force of the circular tube after falling and protects the outer surface of the circular tube.

[0009] The U-shaped movable support plate has one end connected to the first L-shaped support mounting plate and the second L-shaped support mounting plate in a sliding manner along the horizontal direction, and the other end is connected to the second L-shaped support mounting plate in a sliding manner along the horizontal direction. A first telescopic device is provided on the top of the second L-shaped support mounting plate inside the U-shaped movable support plate, and a connecting plate is provided on the output end of the first telescopic device. One end of the connecting plate is connected to the inner surface of one longitudinal side of the U-shaped movable support plate, and an L-shaped fixed mounting plate is provided on the top of the U-shaped movable support plate near one end of the bed body. A lifting support plate is provided on the top of the L-shaped fixed mounting plate corresponding to the fixed chuck position in the longitudinal direction, and one end of the lifting support plate is slidably connected to the transverse side surface of the L-shaped fixed mounting plate in a vertical direction. A lifting device is provided on the top of the L-shaped fixed mounting plate, and the bottom output end of the lifting device passes through the L-shaped fixed mounting plate and is connected to the top of the lifting support plate. A sliding connecting plate is vertically provided on the longitudinal side surface of the lifting support plate, and a second telescopic device is provided on the other side surface The top of the movable support plate is provided with a dust collecting head near the fixed chuck, and a dust collecting box is provided on the inner surface of the movable support plate near the fixed chuck, and a dust collecting box is provided on the inner surface of the movable support plate near the fixed chuck. A dust collecting box is provided on the side of the dust collecting box near the fixed chuck, and a dust collecting mechanism is provided on the top of the U-shaped movable support plate at one side of the L-shaped fixed mounting plate. The dust collecting end of the dust collecting mechanism is connected to the inside of the dust collecting box through an air duct, and the dust collecting head and the dust collecting box can be adjusted to different positions to be suitable for dust collecting and slag processing of circular pipes of different sizes.

[0010] Furthermore, the dust extraction and slag removal head includes a supporting connecting plate, one end of the supporting connecting plate is connected to one end of the lifting supporting plate, and a graphite anti-sputtering block with a semicircular cross-section is arranged on the top of the other end, a storage cavity is arranged inside the supporting connecting plate corresponding to the position of the graphite anti-sputtering block, dust extraction cavities are arranged on both sides of the longitudinal direction of the storage cavity inside the supporting connecting plate, a plurality of dust extraction holes are equidistantly arranged in the dust extraction cavity, the interior of the dust extraction cavity is connected to the exhaust end of the dust extraction mechanism through an air duct, a third rotating shaft is arranged between the inner surfaces of the two lateral sides of the storage cavity, an eccentric cam is arranged on the third rotating shaft, and the storage cavity is arranged horizontally. A second rotating motor is arranged inside the supporting connecting plate on the side, and an output end of the second rotating motor is connected to one end of the third rotating shaft, and a lifting mounting plate is slidably connected in a vertical direction between the inner surfaces on both sides of the lateral sides of the storage chamber below the eccentric cam, and a scraper plate is installed at the bottom of the lifting mounting plate, and the scraper plate is plugged and connected to the supporting connecting plate below the storage chamber, and guide blocks are arranged on both sides of the scraper plate on the inner surface of the bottom of the storage chamber, and second springs are arranged between the two lateral ends of the bottom of the lifting mounting plate and the inner surface of the bottom of the storage chamber to realize dust extraction and slag removal inside the circular pipe.

[0011] Furthermore, the lifting support plate is plugged and installed with a guide support rod, and a linear bushing is arranged between the guide support rod and the lifting support plate. The top of the guide support rod is connected to the inner surface of the top of the L-shaped fixed mounting plate, and the bottom is connected to the top of the U-shaped movable support plate to ensure smooth lifting of the lifting support plate.

[0012] Furthermore, the support connecting plate and the lifting support plate are connected by bolts to facilitate replacement of dust extraction and slag removal heads of different sizes and specifications, and are suitable for dust extraction and slag removal of circular pipes of different sizes and specifications.

[0013] A method for using a laser tube cutting machine comprises the following steps:

[0014] S1: Cutting, the round tube to be cut is clamped on the feeding chuck and the fixed chuck, and then the feeding chuck is controlled to push the round tube forward so that the round tube extends out of the cutting end, and then the laser cutting head mechanism is controlled to cut the round tube extending out of the cutting end;

[0015] S2: Dust extraction and slag removal. Before the laser cutting head mechanism cuts the circular tube, the lifting device is controlled to drive the lifting support plate to lift and lower it to correspond to the circular position of the circular tube. Then the first telescopic device is controlled to drive the U-shaped movable support plate forward, so that the dust extraction and slag removal head is extended into the cutting position inside the circular tube, and the dust extraction box is also moved to one side of the tube cutting position. Then the second rotating motor is controlled to drive the eccentric cam to rotate, so that the lifting mounting plate drives the scraper plate to descend and extend to the outside of the supporting connecting plate until one end thereof contacts the inner surface of the circular tube. Then the laser cutting head mechanism can be controlled to cut the circular tube. At the same time, the dust extraction mechanism is controlled to start working, and the smoke generated on the outside and inside of the circular tube are extracted through the dust extraction box and the dust extraction hole respectively, and the slag attached to the inner surface of the circular tube is scraped off by the scraper plate.

[0016] S3: Material dropping. After the above-mentioned cutting process is completed, the first telescopic device drives the U-shaped movable support plate to retreat, and the second telescopic device drives the sliding support plate to move forward, and the circular pipe cut on the dust extraction and slag removal head is pushed onto the arc-shaped receiving plate through the pushing plate, and then is buffered and protected by the buffer pad on the arc-shaped receiving plate and the protective layer on the shifting plate. Then, the second rotating shaft is driven to rotate by the first rotating motor, and the cut circular pipe is pushed out of the arc-shaped receiving plate and sent into the collecting box through the shifting plate with the cooperation of the arc-shaped support plug-in rod, the arc-shaped lifting connecting rod, the limit ring and the fixed adjusting bolt.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The invention has a reasonable design, a stable and firm overall structure, and strong practicability. It can not only remove the smoke and dust generated on the outside and inside of the round tube during the cutting process to prevent it from spreading to the surrounding environment, but also scrape off the slag attached to the inner wall to improve product quality. It can also buffer and guide the round tube that falls after the cutting process to prevent it from being easily affected by its own gravity and easily bumped or deformed by impact.

[0019] 2. The dust removal head provided in the dust removal and slag removal component can be driven by the first telescopic device to move forward in the horizontal direction to enter the inside of the circular pipe to remove dust and slag, or move backward through the cooperation of the third telescopic device, the push plate and the sliding support plate to push down the circular pipe cut by the dust removal head; the dust generated on the outside of the circular pipe can be extracted by the structure in which the dust extraction box and the dust extraction mechanism are coordinated; in addition, the lifting device can drive the lifting support plate to different heights to adjust the height position of the dust removal and slag removal head, and the second telescopic device can drive the movable support mounting plate to move to different positions in the longitudinal direction to adjust the longitudinal position of the dust extraction box, thereby realizing dust removal and slag removal for circular pipes of different sizes and specifications;

[0020] 3. Specifically, the graphite anti-sputtering block arranged in the dust extraction and slag removal head can prevent the supporting connecting plate from being irradiated by the laser and corroded by the slag, thereby improving its service life; a plurality of dust extraction holes are equidistantly provided through the dust extraction chamber, and the dust extraction chamber is connected to the exhaust end of the dust extraction mechanism through an air duct, so as to realize the extraction of smoke and dust inside the circular pipe; through the cooperation of the second rotating motor, the third rotating shaft, the eccentric cam and the second spring, the lifting and lowering mounting plate can be controlled to drive the scraper plate to descend and extend to the outside of the supporting and connecting plate to scrape the slag on the inner surface of the circular pipe, and the lifting and lowering mounting plate can be controlled to drive the scraper plate to rise and enter the storage chamber for storage. In addition, the supporting and connecting plate is connected to the lifting and lowering supporting plate by bolt connection, so as to facilitate the replacement of dust extraction and slag removal heads of different sizes and specifications, which is suitable for dust extraction and slag removal treatment of circular pipes of different sizes and specifications;

[0021] 4. The buffer pad provided in the blanking assembly can mitigate most of the impact force when the round tube falls, reduce the damage to the arc-shaped receiving plate and the round tube itself, protect the equipment and the tube, ensure the safety of operation and extend the service life; the round tube rolling down from the buffer pad will be blocked by the material-pickup plate, which will mitigate the impact force of the round tube itself for a second time. At the same time, with the cooperation of the first rotating motor and the second rotating shaft, the round tube can be pushed out of the arc-shaped receiving plate and sent into the collecting box 12 to complete the blanking operation; the structure composed of the arc-shaped supporting splice rod, the arc-shaped lifting connecting rod, the limit ring, the first spring and the fixed adjusting bolt can adjust the inclination angle of the arc-shaped receiving plate and the pressure required for pressing down, so that the material-pickup plate can both block the round tube from rolling down and push it out of the arc-shaped receiving plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the blanking assembly in the present invention;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the blanking assembly in the present invention;

[0025] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the dust extraction and slag removal component in the present invention;

[0027] Figure 6 A schematic diagram of the three-dimensional structure of the dust extraction and slag removal component of the present invention from another perspective;

[0028] Figure 7 It is a left side view of the dust extraction and slag removal assembly of the present invention;

[0029] Figure 8 It is a schematic diagram of the cross-sectional structure of the dust extraction and slag removal head of the present invention cut along the vertical direction;

[0030] Fig. 9 It is a schematic diagram of the cross-sectional structure of the dust extraction and slag removal head of the present invention cut along the horizontal direction;

[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the eccentric cam in the present invention.

[0032] In the figure: 1-bed body, 2-feeding chuck, 3-support frame, 4-laser cutting head mechanism, 5-fixed chuck, 6-control device, 7-lifting mechanism, 8-first L-shaped support mounting plate, 9-second L-shaped support mounting plate, 10-blank assembly, 11-dust removal and slag removal assembly, 12-collection box;

[0033] 1001-first rotating shaft, 1002-arc-shaped receiving plate, 1003-second rotating shaft, 1004-dispensing plate, 1005-first rotating motor, 1006-buffer pad, 1007-arc-shaped supporting plug rod, 1008-arc-shaped lifting connecting rod, 1009-limiting ring, 1010-first spring, 1011-fixing adjusting bolt;

[0034] 1101-U-shaped movable support plate, 1102-first telescopic device, 1103-L-shaped fixed mounting plate, 1104-lifting support plate, 1105-lifting device, 1106-sliding connecting plate, 1107-second telescopic device, 1108-movable support mounting plate, 1109-pushing plate, 1110-sliding support plate, 1111-third telescopic device, 1112-dust removal and slag removal head, 1113-dust extraction box, 1114-dust extraction mechanism, 1115-guide support rod;

[0035] 111201-support connecting plate, 111202-graphite anti-sputtering block, 111203-storage chamber, 111204-dust extraction chamber, 111205-dust extraction hole, 111206-third rotating shaft, 111207-eccentric cam, 111208-second rotating motor, 111209-lifting mounting plate, 111210-scraper plate, 111211-guide block, 111212-second spring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] Combination Figure 1 A laser tube cutting machine shown in the figure includes a bed body 1, a feeding chuck 2 is slidably connected to the top of the bed body 1, a supporting frame 3 is arranged at the cutting end of the bed body 1, a laser cutting head mechanism 4 is slidably connected to the top of the supporting frame 3, a fixed chuck 5 is arranged at the position of the supporting frame 3 corresponding to the feeding chuck 2, a control device 6 is arranged on the outer surface of one longitudinal side of the supporting frame 3, a plurality of lifting mechanisms 7 are equidistantly arranged on the longitudinal side of the bed body 1, a first L-shaped supporting mounting plate 8 is arranged on the outer surface of the bed body 1 at the cutting end, a second L-shaped supporting mounting plate 9 is installed on the side of the first L-shaped supporting mounting plate 8 laterally away from the bed body 1, a blanking assembly 10 is arranged on the inner side of the first L-shaped supporting mounting plate 8, a dust extraction and slag removal assembly 11 is arranged on the top of the second L-shaped supporting mounting plate 9, and a collecting box 12 is arranged on the longitudinal side of the blanking assembly 10.

[0039] like Figures 2 to 4As shown, the blanking assembly 10 includes a first rotating shaft 1001, and an arc-shaped material receiving plate 1002 inclined downward is arranged on the outer surface of the circumference of the first rotating shaft 1001, and a second rotating shaft 1003 is arranged above one end of the arc-shaped material receiving plate 1002 away from the first rotating shaft 1001. The first rotating shaft 1001 and the second rotating shaft 1003 are respectively connected to the outer surface of one lateral side of the bed body 1 and the inner surface of one lateral side of the first L-shaped support mounting plate 8. A plurality of material shifting plates 1004 are equidistantly arranged on the outer surface of the second rotating shaft 1003, and a first rotating motor 1005 is arranged on the outer surface of the first L-shaped support mounting plate 8 away from the bed body 1 laterally. The output end of the rotating motor 1005 passes through the first L-shaped support mounting plate 8 and is connected to one end of the second rotating shaft 1003. A buffer pad 1006 is arranged on the upper surface of the arc-shaped receiving plate 1002 corresponding to the position of the fixed chuck 5. The buffer pad 1006 can reduce the impact force when the round tube falls, reduce the damage to the arc-shaped receiving plate 1002 and the round tube itself, protect the equipment and the tube, ensure the safety of operation and extend the service life, and the round tube rolling down from the buffer pad 1006 will be blocked by the material-diverting plate 1004, which will reduce the impact force of the round tube itself for a second time. Then, with the cooperation of the first rotating motor 1005 and the second rotating shaft 1003, The round pipe is pushed out of the arc receiving plate 1002 and sent into the collecting box 12; a plurality of arc-shaped support plug-in rods 1007 are equidistantly arranged on the inner surface of one longitudinal side of the first L-shaped support mounting plate 8, and an arc-shaped lifting connecting rod 1008 is installed on one end of the arc-shaped support plug-in rod 1007, and the arc-shaped trajectory of the arc-shaped lifting connecting rod 1008 plug-in movement is concentric with the arc-shaped trajectory of the rotational movement of the arc-shaped receiving plate 1002, so as to realize that the arc-shaped receiving plate 1002 can rotate with the arc-shaped lifting connecting rod 1008 during the plug-in lifting process, so that the material-push plate 1004 can not only prevent the round pipe from rolling down, but also push it out of the arc-shaped receiving plate 1002; the arc-shaped support plug-in rod A limiting ring 1009 is installed on the outer surface of 1007 near one end of the arc-shaped material receiving plate 1002, and a first spring 1010 is arranged on the outside of the arc-shaped lifting connecting rod 1008 between the arc-shaped material receiving plate 1002 and the limiting ring 1009. A fixed adjusting bolt 1011 is threadedly connected to the radial side of the limiting ring 1009, and one end of the fixed adjusting bolt 1011 passes through the limiting ring 1009 and is connected to the arc-shaped supporting plug-in rod 1007. The position of the limiting ring 1009 is adjusted by the fixed adjusting bolt 1011, and with the cooperation of the first spring 1010, the pressure required to press down the arc-shaped material receiving plate 1002 can be adjusted, and the specific adjustment is based on actual usage requirements.

[0040] like Figures 5 to 7As shown, the dust extraction and slag removal component 11 includes a U-shaped movable support plate 1101, one longitudinal end of the bottom of the U-shaped movable support plate 1101 is slidably connected to the first L-shaped support mounting plate 8 and the top of the second L-shaped support mounting plate 9 in the transverse direction, and the other end is slidably connected to the second L-shaped support mounting plate 9 in the transverse direction. A first telescopic device 1102 is provided on the top of the second L-shaped support mounting plate 9 inside the U-shaped movable support plate 1101, and a connecting plate is provided at the output end of the first telescopic device 1102, and one end of the connecting plate is connected to the inner surface of one longitudinal side of the U-shaped movable support plate 1101. The first telescopic device 1102 is provided to drive the U-shaped movable support plate 1101 to make a linear motion in the transverse direction to adjust the dust extraction and slag removal head 11 12 horizontal position; an L-shaped fixed mounting plate 1103 is arranged on the top of the U-shaped movable support plate 1101 near one end of the bed body 1, and a lifting support plate 1104 is arranged on the L-shaped fixed mounting plate 1103 longitudinally corresponding to the position of the fixed chuck 5, and one end of the lifting support plate 1104 is slidably connected with the surface of one lateral side of the L-shaped fixed mounting plate 1103 in the vertical direction, and a lifting device 1105 is arranged on the top of the L-shaped fixed mounting plate 1103, and the bottom output end of the lifting device 1105 passes through the L-shaped fixed mounting plate 1103 and is connected with the top of the lifting support plate 1104, and the lifting support plate 1104 is driven by the lifting device 1105 to perform lifting movement in the vertical direction to adjust the height position of the dust extraction and slag removal head 1112; A sliding connecting plate 1106 is vertically arranged on one longitudinal side surface of the lowering support plate 1104, and a second telescopic device 1107 is arranged on the other side surface. The sliding connecting plate 1106 is slidably connected to a movable support mounting plate 1108 along the longitudinal direction. The output end of the second telescopic device 1107 passes through the lifting support plate 1104 and is connected to the movable support mounting plate 1108. The movable support mounting plate 1108 is driven by the second telescopic device 1107 to make a linear motion along the longitudinal direction to adjust the longitudinal position of the dust extraction box 1113; a push plate 1109 is arranged on one side of the second telescopic device 1107 horizontally close to the bed body 1, and a sliding support plate 1110 is arranged at the bottom of the push plate 1109. The bottom of the sliding support plate 1110 is connected to the second L-shaped The support and mounting plate 9 is slidably connected in the transverse direction, and a third telescopic device 1111 is arranged on the top of the second L-shaped support and mounting plate 9 on one side of the sliding support plate 1110. The output end of the third telescopic device 1111 is connected to the sliding support plate 1110 through a connecting block, and the sliding support plate 1110 is driven to make a linear motion in the transverse direction by the third telescopic device 1111, so as to drive the pushing plate 1109 forward and push down the circular pipe cut by the dust extraction and slag removal head 1112; a dust extraction and slag removal head 1112 is arranged on one end of the lifting support plate 1104 close to the fixed chuck 5, and the dust extraction and slag removal head 1112 is used to remove the smoke inside the circular pipe during the cutting process, and to scrape off the slag on the inner surface of the circular pipe;A dust box 1113 is provided on the inner surface of one end of the mobile support mounting plate 1108 close to the fixed chuck 5. A plurality of air exhaust ports are provided on the side of the dust box 1113 close to the fixed chuck 5. A dust extraction mechanism 1114 is provided on the top of the U-shaped mobile support plate 1101 and located on one side of the L-shaped fixed mounting plate 1103. The air exhaust end of the dust extraction mechanism 1114 is connected to the inside of the dust box 1113 through an air duct. The dust extraction port on the dust box 1113 and the dust extraction hole 111205 in the dust extraction and slag removal head 1112 are provided with negative pressure through the dust extraction mechanism 1114 in cooperation with the air duct, so as to extract the smoke and dust generated during the cutting process inside and outside the circular pipe. ;

[0041] like Figures 8 to 10As shown, the dust extraction and slag removal head 1112 includes a supporting connecting plate 111201, one end of the supporting connecting plate 111201 is connected to one end of the lifting supporting plate 1104, and a graphite anti-sputtering block 111202 with a semicircular cross-section is arranged on the top of the other end to prevent the supporting connecting plate 111201 from being irradiated by the laser and eroded by the slag, thereby improving its service life; a storage cavity 111203 is arranged inside the supporting connecting plate 111201 corresponding to the position of the graphite anti-sputtering block 111202, and dust extraction cavities 111204 are arranged on both sides of the storage cavity 111203 in the longitudinal direction inside the supporting connecting plate 111201, and a plurality of dust extraction holes 111205 are equidistantly opened in the dust extraction cavity 111204, and the inside of the dust extraction cavity 111204 is connected to the lifting supporting plate 1104 through an air duct. The dust extraction mechanism 1114 is connected to the exhaust end to realize the extraction of smoke and dust inside the circular tube during the cutting process; a third rotating shaft 111206 is arranged between the inner surfaces of the two lateral sides of the storage chamber 111203, and an eccentric cam 111207 is arranged on the third rotating shaft 111206. A second rotating motor 111208 is arranged inside the supporting connecting plate 111201 on one lateral side of the storage chamber 111203, and the output end of the second rotating motor 111208 is connected to one end of the third rotating shaft 111206. A lifting installation plate 111209 is slidably connected between the inner surfaces of the two lateral sides of the storage chamber 111203 below the eccentric cam 111207 along the vertical direction, and a lifting installation plate 111209 is installed at the bottom. The scraper plate 111210 is plug-connected with the supporting connecting plate 111201 below the storage chamber 111203. The inner surface of the bottom of the storage chamber 111203 is located on both sides of the scraper plate 111210. A second spring 111212 is provided between the two ends of the bottom of the lifting installation plate 111209 and the inner surface of the bottom of the storage chamber 111203. The third rotating shaft 111206 is driven to rotate by the second rotating motor 111208, so that the eccentric cam 111207 rotates accordingly, and then the top of the cam of the eccentric cam 111207 is pressed toward the lifting installation plate 111209 or away from it. 11209, the lifting and lowering mounting plate 111209 can drive the scraper plate 111210 to descend, so that it extends out of the supporting connecting plate 111201 and contacts with the inner surface of the circular tube, so as to scrape off the slag on the inner surface of the circular tube. After the slag on the inner surface of the circular tube is scraped off, the second rotating motor 111208 will drive the third rotating shaft 111206 to rotate in the opposite direction, so that the eccentric cam 111207 is away from the lifting and lowering mounting plate 111209. After the top of the lifting and lowering mounting plate 111209 is no longer under pressure, the second spring 111212 will apply an upward thrust to the lifting and lowering mounting plate 111209, so that the lifting and lowering mounting plate 111209 drives the scraper plate 111210 to be retracted into the storage cavity 111203.

[0042] The circumferential outer surfaces of both ends of the first rotating shaft 1001 and the second rotating shaft 1003 are provided with rotating bearings, and the two ends of the first rotating shaft 1001 and the second rotating shaft 1003 are connected to the outer surface of the lateral side of the bed body 1 and the inner surface of the lateral side of the first L-shaped support mounting plate through rotating bearings to ensure that the first rotating shaft 1001 and the second rotating shaft 1003 rotate smoothly; the outer surface of the material removal plate 1004 is provided with a protective layer made of rubber material to further reduce the impact force of the circular pipe after falling, and at the same time protect the outer surface of the circular pipe; the lifting support plate 1104 is plugged and installed with a guide support rod 1115, and a linear bushing is provided between the guide support rod 1115 and the lifting support plate 1104, the top of the guide support rod 1115 is connected to the inner surface of the top of the L-shaped fixed mounting plate 1103, and the bottom is connected to the top of the U-shaped movable support plate 1101 to ensure that the lifting support plate 1104 can be lifted and lowered smoothly; support connection The plate 111201 is connected to the lifting support plate 1104 by bolt connection, so as to facilitate the replacement of dust extraction and slag removal heads 1112 of different sizes and specifications, which is suitable for dust extraction and slag removal of round pipes of different sizes and specifications; the moving mechanism, laser cutting head mechanism 4, first rotating motor 1005, first telescopic device 1102, lifting device 1105, second telescopic device 1107, third telescopic device 1111, dust extraction mechanism 1114 and second rotating motor 111208 in the feeding chuck 2 are all electrically connected to the control device 6 to facilitate the control of the working state of each driving component, wherein the first telescopic device 1102, lifting device 1105, second telescopic device 1107 and third telescopic device 1111 are one of servo electric cylinders or electric telescopic rods, the moving mechanism in the feeding chuck 2 is a driving motor equipped with a transmission structure in which a transmission gear and a transmission rack are meshed, and the dust extraction mechanism 1114 is a vacuum cleaner.

[0043] A method for using a laser tube cutting machine comprises the following steps:

[0044] S1: Cutting, the round tube to be cut is clamped on the feeding chuck and the fixed chuck, and then the feeding chuck is controlled to push the round tube forward so that the round tube extends out of the cutting end, and then the laser cutting head mechanism is controlled to cut the round tube extending out of the cutting end;

[0045] S2: Dust extraction and slag removal. Before the laser cutting head mechanism cuts the circular tube, the lifting device is controlled to drive the lifting support plate to lift and lower it to correspond to the circular position of the circular tube. Then the first telescopic device is controlled to drive the U-shaped movable support plate forward, so that the dust extraction and slag removal head is extended into the cutting position inside the circular tube, and the dust extraction box is also moved to one side of the tube cutting position. Then the second rotating motor is controlled to drive the eccentric cam to rotate, so that the lifting mounting plate drives the scraper plate to descend and extend to the outside of the supporting connecting plate until one end thereof contacts the inner surface of the circular tube. Then the laser cutting head mechanism can be controlled to cut the circular tube. At the same time, the dust extraction mechanism is controlled to start working, and the smoke generated on the outside and inside of the circular tube are extracted through the dust extraction box and the dust extraction hole respectively, and the slag attached to the inner surface of the circular tube is scraped off by the scraper plate.

[0046] S3: Material dropping. After the above-mentioned cutting process is completed, the first telescopic device drives the U-shaped movable support plate to retreat, and the second telescopic device drives the sliding support plate to move forward, and the circular pipe cut on the dust extraction and slag removal head is pushed onto the arc-shaped receiving plate through the pushing plate, and then is buffered and protected by the buffer pad on the arc-shaped receiving plate and the protective layer on the shifting plate. Then, the second rotating shaft is driven to rotate by the first rotating motor, and the cut circular pipe is pushed out of the arc-shaped receiving plate and sent into the collecting box through the shifting plate with the cooperation of the arc-shaped support plug-in rod, the arc-shaped lifting connecting rod, the limit ring and the fixed adjusting bolt.

[0047] Working principle: When in use, clamp the round tube to be cut on the feeding chuck and the fixed chuck, then control the feeding chuck to push the round tube forward so that the round tube extends out of the cutting end, then control the lifting device to drive the lifting support plate to lift and lower it to correspond to the circular position of the round tube, then control the first telescopic device to drive the U-shaped moving support plate forward so that the dust extraction and slag removal head extends into the cutting position inside the round tube, and the dust extraction box will also move to one side of the tube cutting position, then control the second rotating motor to drive the eccentric cam to rotate, so that the lifting mounting plate drives the scraper plate to descend and extend to the outside of the supporting connecting plate until one end of it contacts the inner surface of the round tube, then the laser cutting head mechanism can be controlled to cut the round tube, and this At the same time, the dust extraction mechanism is controlled to start working, and the smoke and dust generated on the outside and inside of the circular pipe are respectively extracted through the dust extraction box and the dust extraction hole, and the slag attached to the inner surface of the circular pipe is scraped off by the scraper plate. After the cutting process is completed, the first telescopic device drives the U-shaped moving support plate to retreat, and the second telescopic device drives the sliding support plate to move forward, and the circular pipe cut by the dust extraction and slag removal head is pushed onto the arc-shaped receiving plate through the pushing plate, and then is buffered and protected by the buffer pad on the arc-shaped receiving plate and the protective layer on the stripping plate, and then the second rotating shaft is driven to rotate by the first rotating motor, and the cut circular pipe is pushed out of the arc-shaped receiving plate and sent into the collecting box through the stripping plate with the cooperation of the arc-shaped support plug-in rod, the arc-shaped lifting connecting rod, the limit ring and the fixed adjusting bolt.

[0048] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A laser tube cutting machine, comprising a bed body (1), a feeding chuck (2) being slidably connected to the top of the bed body (1), a support frame (3) being provided at the cutting end of the bed body (1), a laser cutting head mechanism (4) being slidably connected to the top of the support frame (3), a fixed chuck (5) being provided at a position of the support frame (3) corresponding to the feeding chuck (2), a control device (6) being provided on the outer surface of one longitudinal side of the support frame (3), and a plurality of lifting mechanisms (7) being equidistantly provided on one longitudinal side of the bed body (1), characterized in that: The bed body (1) is provided with a first L-shaped support mounting plate (8) on the outer surface of one side of the cutting end, a second L-shaped support mounting plate (9) is installed on the side of the first L-shaped support mounting plate (8) laterally away from the bed body (1), a blanking assembly (10) is provided on the inner side of the first L-shaped support mounting plate (8), a dust extraction and slag removal assembly (11) is provided on the top of the second L-shaped support mounting plate (9), and a collection box (12) is provided on one longitudinal side of the blanking assembly (10); The blanking assembly (10) comprises a first rotating shaft (1001), a downwardly inclined arc-shaped material receiving plate (1002) is arranged on the circumferential outer surface of the first rotating shaft (1001), a second rotating shaft (1003) is arranged above one end of the arc-shaped material receiving plate (1002) away from the first rotating shaft (1001), and the first rotating shaft (1001) and the second rotating shaft (1003) are respectively connected to the outer surface of one lateral side of the bed body (1) and the first L-shaped support mounting plate. (8) is connected to the inner surface of one side in the lateral direction, a plurality of material-diverting plates (1004) are arranged equidistantly on the outer surface of the second rotating shaft (1003), a first rotating motor (1005) is arranged on the outer surface of the first L-shaped supporting mounting plate (8) in the lateral direction away from the bed body (1), an output end of the first rotating motor (1005) passes through the first L-shaped supporting mounting plate (8) and is connected to one end of the second rotating shaft (1003), the upper surface of the arc-shaped material-diverting plate (1002) corresponds to the fixed A buffer pad (1006) is arranged at the position of the fixed chuck (5), a plurality of arc-shaped support plug-in rods (1007) are equidistantly arranged on the inner surface of one longitudinal side of the first L-shaped support mounting plate (8), an arc-shaped lifting connecting rod (1008) is plugged and installed at one end of the arc-shaped support plug-in rod (1007), the arc-shaped trajectory of the plugging movement of the arc-shaped lifting connecting rod (1008) is concentric with the arc-shaped trajectory of the rotational movement of the arc-shaped material receiving plate (1002), and the arc-shaped support plug-in rod (1007) is close to the arc-shaped connecting rod (1008). A limiting ring (1009) is plugged and installed on the outer surface of one end of the material plate (1002); a first spring (1010) is arranged on the outer side of the arc-shaped lifting connecting rod (1008) between the arc-shaped material receiving plate (1002) and the limiting ring (1009); a fixing adjustment bolt (1011) is threadedly connected to one radial side of the limiting ring (1009); one end of the fixing adjustment bolt (1011) passes through the limiting ring (1009) and is connected to the arc-shaped supporting plug-in rod (1007); The dust extraction and slag removal assembly (11) comprises a U-shaped movable support plate (1101), one longitudinal end of the bottom of the U-shaped movable support plate (1101) is slidably connected to the top of the first L-shaped support mounting plate (8) and the second L-shaped support mounting plate (9) in a transverse direction, and the other end is slidably connected to the second L-shaped support mounting plate (9) in a transverse direction, a first telescopic device (1102) is provided at the top of the second L-shaped support mounting plate (9) inside the U-shaped movable support plate (1101), and a connecting plate is provided at the output end of the first telescopic device (1102), one end of the connecting plate is connected to the inner surface of one longitudinal side of the U-shaped movable support plate (1101), and the top of the U-shaped movable support plate (1101) is close to the An L-shaped fixed mounting plate (1103) is arranged at one end of the bed body (1), and a lifting support plate (1104) is arranged on the L-shaped fixed mounting plate (1103) at a position corresponding to the fixed chuck (5) in the longitudinal direction. One end of the lifting support plate (1104) is slidably connected to a surface of a lateral side of the L-shaped fixed mounting plate (1103) in a vertical direction. A lifting device (1105) is arranged on the top of the L-shaped fixed mounting plate (1103), and a bottom output end of the lifting device (1105) passes through the L-shaped fixed mounting plate (1103) and is connected to the top of the lifting support plate (1104). A sliding connection plate (1106) is vertically arranged on a surface of one longitudinal side of the lifting support plate (1104), and a second surface is arranged on the other side. The telescopic device (1107) comprises a sliding connection plate (1106) connected to a movable support mounting plate (1108) in a longitudinal sliding manner, an output end of the second telescopic device (1107) passes through the lifting support plate (1104) and is connected to the movable support mounting plate (1108), a push plate (1109) is arranged on one side of the second telescopic device (1107) near the bed body (1) in a transverse direction, a sliding support plate (1110) is arranged at the bottom of the push plate (1109), the bottom of the sliding support plate (1110) is connected to the second L-shaped support mounting plate (9) in a transverse sliding manner, and a third telescopic device (1107) is arranged on the top of the second L-shaped support mounting plate (9) on one side of the sliding support plate (1110). 111), the output end of the third telescopic device (1111) is connected to the sliding support plate (1110) through a connecting block, a dust removal and slag removal head (1112) is provided at one end of the lifting support plate (1104) close to the fixed chuck (5), a dust extraction box (1113) is provided on the inner surface of one end of the movable support mounting plate (1108) close to the fixed chuck (5), a plurality of air exhaust ports are provided on one side of the dust extraction box (1113) close to the fixed chuck (5), a dust extraction mechanism (1114) is provided at the top of the U-shaped movable support plate (1101) on one side of the L-shaped fixed mounting plate (1103), and the air exhaust end of the dust extraction mechanism (1114) is connected to the inside of the dust extraction box (1113) through an air duct; The dust extraction and slag removal head (1112) comprises a support connection plate (111201), one end of the support connection plate (111201) is connected to one end of the lifting support plate (1104), and a graphite anti-sputtering block (111202) with a semicircular cross-section is arranged on the top of the other end, and a storage cavity (111203) is arranged inside the support connection plate (111201) at a position corresponding to the graphite anti-sputtering block (111202), and the storage cavity (111203) is arranged inside the support connection plate (111201) Dust extraction chambers (111204) are provided on both longitudinal sides of the chamber (111203); a plurality of dust extraction holes (111205) are provided in the dust extraction chamber (111204) at equal intervals; the interior of the dust extraction chamber (111204) is connected to the dust extraction end of the dust extraction mechanism (1114) through an air duct; a third rotating shaft (111206) is provided between the inner surfaces of the two lateral sides of the storage chamber (111203); an eccentric cam (111207) is provided on the third rotating shaft (111206); A second rotating motor (111208) is arranged inside the supporting connecting plate (111201) on a lateral side of the receiving cavity (111203), and an output end of the second rotating motor (111208) is connected to one end of the third rotating shaft (111206). A lifting installation plate (111209) is slidably connected between the inner surfaces of the lateral sides of the receiving cavity (111203) below the eccentric cam (111207) in a vertical direction, and a lifting installation plate (111209) is installed at the bottom of the lifting installation plate (111209). A scraper plate (111210), the scraper plate (111210) is plug-connected with the supporting connecting plate (111201) below the storage cavity (111203), the bottom inner surface of the storage cavity (111203) is provided with guide blocks (111211) on both lateral sides of the scraper plate (111210), and second springs (111212) are provided between the lateral ends of the bottom of the lifting installation plate (111209) and the bottom inner surface of the storage cavity (111203).

2. A laser tube cutting machine according to claim 1, characterized in that The first rotating shaft (1001) and the second rotating shaft (1003) are provided with rotating bearings on their circumferential outer surfaces at both ends, and the first rotating shaft (1001) and the second rotating shaft (1003) are connected to the outer surface of one lateral side of the bed body (1) and the inner surface of one lateral side of the first L-shaped support mounting plate through the rotating bearings.

3. A laser tube cutting machine according to claim 1, characterized in that The outer surface of the material-diverting plate (1004) is provided with a protective layer made of rubber material.

4. A laser tube cutting machine according to claim 1, characterized in that The lifting support plate (1104) is plugged with a guide support rod (1115), a linear bushing is provided between the guide support rod (1115) and the lifting support plate (1104), the top of the guide support rod (1115) is connected to the inner surface of the top of the L-shaped fixed mounting plate (1103), and the bottom is connected to the top of the U-shaped movable support plate (1101).

5. The laser tube cutting machine according to claim 1, characterized in that The supporting connection plate (111201) and the lifting support plate (1104) are connected by bolt connection.

6. The method for using a laser tube cutting machine according to claim 1, characterized in that: The following steps are involved: S1: Cutting, the round tube to be cut is clamped on the feeding chuck and the fixed chuck, and then the feeding chuck is controlled to push the round tube forward so that the round tube extends out of the cutting end, and then the laser cutting head mechanism is controlled to cut the round tube extending out of the cutting end; S2: Dust extraction and slag removal. Before the laser cutting head mechanism cuts the circular tube, the lifting device is controlled to drive the lifting support plate to lift and lower it to correspond to the circular position of the circular tube. Then the first telescopic device is controlled to drive the U-shaped movable support plate forward, so that the dust extraction and slag removal head is extended into the cutting position inside the circular tube, and the dust extraction box is also moved to one side of the tube cutting position. Then the second rotating motor is controlled to drive the eccentric cam to rotate, so that the lifting mounting plate drives the scraper plate to descend and extend to the outside of the supporting connecting plate until one end thereof contacts the inner surface of the circular tube. Then the laser cutting head mechanism can be controlled to cut the circular tube. At the same time, the dust extraction mechanism is controlled to start working, and the smoke generated on the outside and inside of the circular tube are extracted through the dust extraction box and the dust extraction hole respectively, and the slag attached to the inner surface of the circular tube is scraped off by the scraper plate. S3: Material dropping. After the above-mentioned cutting process is completed, the first telescopic device drives the U-shaped movable support plate to retreat, and the second telescopic device drives the sliding support plate to move forward, and the circular pipe cut on the dust extraction and slag removal head is pushed onto the arc-shaped receiving plate through the pushing plate, and then is buffered and protected by the buffer pad on the arc-shaped receiving plate and the protective layer on the shifting plate. Then, the second rotating shaft is driven to rotate by the first rotating motor, and the cut circular pipe is pushed out of the arc-shaped receiving plate and sent into the collecting box through the shifting plate with the cooperation of the arc-shaped support plug-in rod, the arc-shaped lifting connecting rod, the limit ring and the fixed adjusting bolt.

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