Laser pipe cutting machine special for circular pipe

Abstract

The invention discloses a special laser pipe cutting machine for round pipes, which comprises a lathe bed body, a movable chuck is slidably connected to the lathe bed body, a support mounting frame is arranged at the cutting end of the lathe bed body, a fixed chuck is arranged on the inner side of the support mounting frame, a laser cutting head mechanism is arranged at the top of the support mounting frame, and a control device is arranged on one longitudinal side of the support mounting frame. A workbench is arranged on the transverse side of the cutting end of the lathe bed body, and a supporting installation plate is arranged at the longitudinal end between the lathe bed body and the workbench. The device has the beneficial effects that the device is reasonable in design, stable and firm in overall structure and high in practicability; the problem that a section of pipe extending out of the chuck jumps can be solved, the phenomenon that the pipe is prone to collision or impact deformation in the blanking process after being cut off is avoided, the pipe cutting quality is greatly improved, and the pipe cutting device is suitable for application and popularization.

Description

Technical Field

[0001] The invention relates to the technical field of laser tube cutting machines, in particular to a laser tube cutting machine dedicated to round tubes. 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 CN215588166U discloses a laser tube cutting machine, which can lower the front chuck device into the machine body by controlling the lifting device, and extend it out from the top of the machine body when it is needed, which is more flexible to use, has good space utilization, and saves installation and maintenance costs. Moreover, when a certain amount of cut products remain, the rear chuck device can be controlled to carry the products out of the front chuck device first, and then the front chuck device can be controlled to descend to avoid the movement of the rear chuck device, so that the rear chuck device can have a larger travel range and be closer to the cutting device, thereby shortening the remaining tail of the product and saving the use cost.

[0004] However, in actual application of the technical solution of the above patent, during the rotation processing of the pipe, the section of the pipe extending out of the chuck is prone to jumping. At the same time, after the pipe is cut, it falls directly to the ground or into a collection trough on the ground. The height of the pipe when it falls is relatively high. Combined with the influence of the pipe's own gravity, it is easy for the pipe to be bumped or deformed by impact, affecting the quality of the finished product. Further development and improvement are needed. Summary of the invention

[0005] The purpose of the present invention is to provide a laser tube cutting machine specifically for round tubes in order to solve the problem that during the existing laser tube cutting machine, a section of the tube extending out of the chuck will jump, affecting the accuracy of the tube cutting processing, and the falling of the tube after the tube is cut off will easily cause the tube to be bumped or deformed by impact, affecting the quality of the tube cutting processing.

[0006] The present invention achieves the above-mentioned purpose through the following technical scheme: a laser tube cutting machine specially used for round tubes, comprising a bed body, a movable chuck is slidably connected to the bed body, a support mounting frame is arranged at the cutting end of the bed body, a fixed chuck is arranged on the inner side of the support mounting frame, a laser cutting head mechanism is arranged on the top of the support mounting frame, a control device is arranged on the longitudinal side of the support mounting frame, a workbench is arranged on the lateral side of the cutting end of the bed body, a support mounting plate is arranged on the longitudinal end between the bed body and the workbench, a support blanking assembly is slidably connected to the surface of the support mounting plate on the side close to the laser cutting head mechanism in the longitudinal direction, a collection box is arranged below the support blanking assembly, and a slag removal assembly is arranged on the workbench.

[0007] The U-shaped support plate is provided with a plurality of support plug rods, and the support plug rods are connected with the U-shaped support plate in a plurality of ways. The top of the block contacts the inner surface of the top of the U-shaped support connecting plate, and a pressure sensor is arranged on the top of the U-shaped support connecting plate between the supporting plug-in rods, and a level sensor is arranged at one end of the bottom of the V-shaped supporting plate. The two inclined surfaces on the inner side of the V-shaped supporting plate are symmetrically arranged with a plurality of supporting lifting rollers along the longitudinal direction, and the two inclined surfaces on the inner side of the V-shaped supporting plate are located between the supporting lifting rollers and an electromagnet is arranged, and the outer surfaces on both sides of the longitudinal direction of the V-shaped supporting plate corresponding to the position of the laser cutting head mechanism are provided with air cavities, and the inclined surfaces on the longitudinal ends of the inner side of the V-shaped supporting plate are equidistantly provided with a plurality of dust extraction holes, and the dust extraction holes on the inclined surfaces on the longitudinal ends of the inner side of the V-shaped supporting plate are respectively connected with the wind cavities on the longitudinal outer surfaces of the two sides of the V-shaped supporting plate, and the air cavities are connected with the output ends of the dust extraction mechanism, and a lifting support mounting plate is arranged on the surface of one side of the U-shaped lifting support plate close to the supporting mounting plate in the longitudinal direction, and a rotation limiting mechanism is arranged on the top of the lifting support mounting plate, and a lifting mechanism is arranged between the lifting support mounting plate and the supporting mounting plate.

[0008] Furthermore, the rotation limit mechanism includes a support limit column arranged on the top of the lifting support mounting plate, and when the V-shaped supporting plate rotates to the highest point along the supporting rotating axis, one longitudinal side surface contacts with one longitudinal side surface of the support limit column, and fixed mounting plates are arranged on both lateral sides of the support limit column, and a first lifting device is arranged on the bottom of one end of the fixed mounting plate away from the support limit column, and a limiting pressure plate is installed on the top output end of the first lifting device through the fixed mounting plate and extends to the top of the V-shaped supporting plate, and a guide plug rod is arranged on the limiting pressure plate on the lateral side of the first lifting device, and the guide plug rod is plugged into the fixed mounting plate, and an arc-shaped limiting groove is arranged on the bottom of the limiting pressure plate corresponding to the axial center position of the fixed chuck in the longitudinal direction.

[0009] Furthermore, the lifting mechanism includes a ball nut seat arranged on the lifting support mounting plate longitudinally close to one end of the support mounting plate, a transmission screw is arranged in the ball nut seat, second support rotating seats are arranged at both ends of the transmission screw, the second support rotating seats are connected to one longitudinal side surface of the support mounting plate, a second rotating motor is arranged on the outside of the second support rotating seat at one end of the transmission screw, the second rotating motor is fixedly connected to the support mounting plate, and the output end of the second rotating motor is connected to one end of the transmission screw.

[0010] Furthermore, the upper surface of the electromagnet is located between the inner surface of the V-shaped supporting plate and one end of the supporting lifting roller away from the inner surface of the V-shaped supporting plate.

[0011] Furthermore, a rotary bearing is provided between the first supporting rotating seat and the supporting rotating shaft, and between the second supporting rotating seat and the transmission screw.

[0012] Furthermore, the slag removal assembly includes a U-shaped lifting support frame, both ends of the U-shaped lifting support frame are plug-connected to the top of the workbench, and a second lifting device is arranged between the middle of the bottom of the U-shaped lifting support frame and the top of the workbench, and the top of the U-shaped lifting support frame is slidably connected to a movable support seat in a transverse direction, and a linear transmission mechanism is arranged between the movable support seat and one longitudinal side surface of the U-shaped lifting support frame, and a guide support column is arranged at the top of the U-shaped lifting support frame near one end of the fixed chuck, and a movable support rod is plug-connected to the guide support column, and the movable support rod and the fixed chuck axis are located at the same longitudinal position, and a supporting mounting rod is installed at one end of the movable support rod near the fixed chuck, and the other end is connected to the movable support seat, and a protective plate made of graphite material is arranged on the top of the support mounting rod, and a scraper plate is arranged on the bottom.

[0013] Furthermore, the linear transmission mechanism is a transmission structure in which a driving motor is equipped with a transmission gear and a transmission rack that mesh with each other.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The invention has a reasonable design, a stable and firm overall structure, and strong practicability; it can not only solve the problem that a section of the pipe extending out of the chuck will jump, but also solve the problem that the pipe is prone to bumping or being deformed by impact during the blanking process after being cut off, thereby greatly improving the quality of pipe cutting processing.

[0016] 2. Specifically, when the V-shaped support plate in the support blanking assembly rotates to the highest point along the support rotation axis, it is located at the same longitudinal position as the fixed chuck, and then the lifting mechanism cooperates to drive the V-shaped support plate to rise and fall, so as to support and lift the pipe extending to the outside of the fixed chuck, thereby preventing it from sagging or jumping during rotation, and improving the quality of cutting processing;

[0017] At the same time, the V-shaped support plate is connected to the U-shaped support connecting plate through a structure in which a support plug rod and a limit block cooperate. In this way, the pressure sensor can monitor the gravity of the V-shaped support plate itself. When supporting and lifting the pipe, the lifting force applied to the pipe can be monitored in real time according to the pressure difference, so as to avoid the phenomenon of pipe sagging, deformation or jumping due to excessive or insufficient lifting force, and further improve the quality of pipe cutting and processing;

[0018] When the lifting mechanism drives the V-shaped support plate holding the pipe to drop down, the electromagnet is in working state, which has a certain adsorption force on the cut pipe to prevent it from slipping off the V-shaped support plate during the lifting process. When the cut pipe in the V-shaped support plate is close to the collection box, the electromagnet stops working, and the first rotating motor drives the supporting rotating shaft to rotate, so that the V-shaped support plate rotates 45-90 degrees, so that the cut pipe is separated from the V-shaped support plate and enters the collection box, which solves the problem that the pipe is easily bumped or deformed by impact due to the large drop height and the influence of its own gravity.

[0019] In addition, by setting up the wind cavity, dust extraction holes and the structure in which the output end of the dust extraction mechanism is connected to the wind cavity, the smoke and dust generated during the pipe cutting process can be extracted, the air quality of the operating environment is improved, and the health of the operators is ensured.

[0020] 3. Specifically, the support limit column in the rotation limit mechanism is arranged on the top of the lifting support mounting plate. When the V-shaped support plate rotates to the highest point along the support rotation axis, its longitudinal side surface contacts the support limit column, which makes it easy to quickly adjust the V-shaped support plate and the fixed chuck to the same longitudinal position, making it convenient to support and lift the pipe;

[0021] The first lifting device can drive the limit pressure plate to rise and fall. The guide plug-in rod on the limit pressure plate is plugged into the fixed mounting plate to ensure the stability of the lifting process. The arc-shaped limit groove at the bottom of the limit pressure plate corresponds to the axis position of the fixed chuck, which can effectively limit the pipe when it rotates to prevent it from jumping upward. In addition, the limit pressure plate can cooperate with the electromagnet to keep the relative position of the pipe stable during the process of the V-shaped supporting plate driving the pipe to rise and fall, thereby preventing the pipe from slipping off the V-shaped supporting plate, and ensuring the smooth progress of the pipe processing process in all aspects.

[0022] 4. Specifically, the slag removal assembly can be flexibly adjusted according to round pipes of different sizes through the cooperation of the second lifting device and the U-shaped lifting support frame, which greatly improves the scope of application;

[0023] With the cooperation of the linear transmission mechanism and the mobile support seat, the mobile support rod and the support mounting rod are driven to move, so that the scraper plate can accurately act on the inner wall of the pipe at the cutting position, effectively scraping off the slag generated on the inner wall of the pipe during the cutting process;

[0024] In addition, the support mounting rod and the movable support rod are connected by bolts, which facilitates the replacement of scraper plates of different models. The most suitable scraper plate can be selected according to the characteristics of the slag generated by different pipe materials and cutting processes to improve the slag removal efficiency and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the supporting blanking assembly in the present invention;

[0027] Figure 3 A top view of the supporting blanking assembly in the present invention;

[0028] Figure 4 It is a front view of the local structure of the supporting blanking assembly in the present invention;

[0029] Figure 5 for Figure 4 Enlarged view of part A in the middle;

[0030] Figure 6 It is a three-dimensional structural schematic diagram of the rotation limiting mechanism in the present invention;

[0031] Figure 7 It is a three-dimensional structural schematic diagram of the lifting mechanism in the present invention;

[0032] Figure 8 It is a schematic diagram of the three-dimensional structure of the slag removal component in the present invention;

[0033] Fig. 9 for Figure 8 Enlarged view of part B in the middle.

[0034] In the figure: 1-bed body, 2-movable chuck, 3-support mounting frame, 4-fixed chuck, 5-laser cutting head mechanism, 6-control device, 7-workbench, 8-support mounting plate, 9-support blanking assembly, 10-collection box, 11-slag removal assembly;

[0035] 901-U-shaped lifting support plate, 902-V-shaped support plate, 903-support rotating shaft, 904-first support rotating seat, 905-first rotating motor, 906-U-shaped support connecting plate, 907-support plug-in rod, 908-limiting block, 909-pressure sensor, 910-level sensor, 911-support lifting roller, 912-electromagnet, 913-wind cavity, 914-dust extraction hole, 915-lifting support mounting plate, 916-rotation limiting mechanism, 917-lifting mechanism;

[0036] 9161-supporting limiting column, 9162-fixed mounting plate, 9163-first lifting device, 9164-limiting pressing plate, 9165-guide plug-in rod, 9166-arc-shaped limiting groove;

[0037] 9171- ball nut seat, 9172- transmission screw, 9173- second support rotating seat, 9174- second rotating motor;

[0038] 1101-U-shaped lifting support frame, 1102-second lifting device, 1103-movable support seat, 1104-linear transmission mechanism, 1105-guide support column, 1106-movable support rod, 1107-support mounting rod, 1108-protective plate, 1109-scraper plate. DETAILED DESCRIPTION

[0039] 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.

[0040] 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.

[0041] Combination Figure 1 A laser tube cutting machine dedicated to round tubes is shown, comprising a bed body 1, a movable chuck 2 is slidably connected to the bed body 1, a support mounting frame 3 is provided at the cutting end of the bed body 1, a fixed chuck 4 is provided on the inner side of the support mounting frame 3, a laser cutting head mechanism 5 is provided on the top of the support mounting frame 3, a control device 6 is provided on the longitudinal side of the support mounting frame 3, a workbench 7 is provided on the lateral side of the cutting end of the bed body 1, a support mounting plate 8 is provided on the longitudinal end between the bed body 1 and the workbench 7, a support blanking assembly 9 is slidably connected to the surface of the support mounting plate 8 on the side close to the laser cutting head mechanism 5 in the longitudinal direction, a collection box 10 is provided below the support blanking assembly 9, and a slag removal assembly 11 is provided on the workbench 7.

[0042] like Figures 2 to 5As shown, the support blanking assembly 9 includes a U-shaped lifting support plate 901, and both ends of the U-shaped lifting support plate 901 are slidably connected to the longitudinal side surface of the support mounting plate 8 in the vertical direction. A V-shaped supporting plate 902 is arranged above the U-shaped lifting support plate 901, and the V-shaped supporting plate 902 and the axis of the fixed chuck 4 are located at the same longitudinal position, and a supporting rotating shaft 903 is arranged below the V-shaped supporting plate 902. Both ends of the supporting rotating shaft 903 are provided with a first supporting rotating seat 904, and the first supporting rotating seat 904 is fixedly installed on the top of the U-shaped lifting support plate 901. A first rotating motor 905 is arranged outside a supporting rotating seat 904, and the first rotating motor 905 is fixedly mounted on the top of the U-shaped lifting supporting plate 901, and the output end of the first rotating motor 905 is connected to one end of the supporting rotating shaft 903, and a U-shaped supporting connecting plate 906 is arranged on the outer surface of the supporting rotating shaft 903, and a plurality of supporting plug-in rods 907 are arranged at equal intervals at the bottom of the V-shaped supporting plate 902, and the supporting plug-in rods 907 are plug-connected with the U-shaped supporting connecting plate 906, and one end of the supporting plug-in rod 907 extends into the inner side of the U-shaped supporting connecting plate 906 to install a limiting block 908, and the top of the limiting block 908 In contact with the inner surface of the top of the U-shaped support connecting plate 906, a pressure sensor 909 is arranged between the top of the U-shaped support connecting plate 906 and the support plug rod 907, a level sensor 910 is arranged at one end of the bottom of the V-shaped support plate 902, and a plurality of support lifting rollers 911 are symmetrically arranged on the two inclined surfaces on the inner side of the V-shaped support plate 902 along the longitudinal direction, and an electromagnet 912 is arranged between the two inclined surfaces on the inner side of the V-shaped support plate 902 and the support lifting rollers 911, and the outer surfaces on both sides of the longitudinal direction of the V-shaped support plate 902 corresponding to the position of the laser cutting head mechanism 5 are provided with air chambers 913, and the V-shaped support plate 902 is provided with a pressure sensor 909. The inclined surfaces at both ends of the inner longitudinal side of the material plate 902 are equidistantly provided with a number of dust extraction holes 914, the dust extraction holes 914 on the inclined surfaces at both ends of the inner longitudinal side of the V-shaped material supporting plate 902 are respectively connected to the wind cavities 913 on the outer surfaces of the two longitudinal sides of the V-shaped material supporting plate 902, and the wind cavities 913 are connected to the output end of the dust extraction mechanism, and a lifting support mounting plate 915 is provided on the surface of one side of the U-shaped lifting support plate 901 close to the support mounting plate 8 in the longitudinal direction, and a rotation limiting mechanism 916 is provided on the top of the lifting support mounting plate 915, and a lifting mechanism 917 is provided between the lifting support mounting plate 915 and the support mounting plate 8;

[0043] The position of the V-shaped support plate 902 can be adjusted by driving the support rotating shaft 903 to rotate by the first rotating motor 905. When the V-shaped support plate 902 rotates to the highest point along the support rotating shaft 903, it is located at the same longitudinal position as the fixed chuck 4. Then, the lifting mechanism 917 cooperates to drive the V-shaped support plate 902 to rise and fall, so as to support and lift the pipe extending to the outside of the fixed chuck 4, thereby preventing it from sagging or jumping during the rotation process, thereby improving the quality of the cutting process. At the same time, the V-shaped support plate 902 is supported by the plug-in The structure in which the rod 907 and the limit block 908 cooperate is connected to the U-shaped support connecting plate 906, so that the pressure sensor 909 can monitor the gravity of the V-shaped supporting plate 902 itself. When supporting and lifting the pipe, the lifting force applied to the pipe can be monitored in real time according to the pressure difference, so as to avoid the phenomenon of pipe sagging, deformation or jumping caused by excessive or insufficient supporting and lifting force, and further improve the quality of pipe cutting and processing; after the pipe is cut, the lifting mechanism 917 will drive the V-shaped supporting plate 902 supporting the pipe to descend, so that the V-shaped The support plate 902 is close to the collection box 10. After the pipe is cut and in the process of approaching the collection box 10, the electromagnet 912 is in a working state, and has a certain adsorption force on the cut pipe to prevent it from slipping off the V-shaped support plate 902 during the lifting process. After the cut pipe in the V-shaped support plate 902 approaches the collection box 10, the electromagnet 912 stops working, and the first rotating motor 905 drives the supporting rotating shaft 903 to rotate, so that the V-shaped support plate 902 rotates 45-90 degrees, so that the cut pipe can be separated from the V-shaped The supporting plate 902 enters the collecting box 10, which solves the problem that the material falling height is large and the pipe is affected by its own gravity, which easily causes the pipe to be bumped or deformed by impact; in addition, the two inclined surfaces on the inner side of the V-shaped supporting plate 902 correspond to the position of the wind cavity 913 and the outer surface of the wind cavity 913 are provided with a protective layer made of graphite material, and the protective layer has a through hole at the dust extraction hole 914, which is connected to the dust extraction hole 914, and the inside of the wind cavity 913 is connected to the output end of the dust extraction mechanism, so as to realize the removal of smoke and dust generated during the pipe cutting process.

[0044] like Figure 6As shown, the rotation limiting mechanism 916 includes a support limiting column 9161 arranged on the top of the lifting support mounting plate 915. When the V-shaped supporting plate 902 rotates to the highest point along the supporting rotating shaft 903, one longitudinal side surface contacts the one longitudinal side surface of the support limiting column 9161, so as to quickly adjust the V-shaped supporting plate 902 and the fixed chuck 4 to the same longitudinal position to support and lift the pipe; fixed mounting plates 9162 are arranged on both sides of the support limiting column 9161, and a first lifting device 9163 is arranged at the bottom of one end of the fixed mounting plate 9162 away from the support limiting column 9161, and the top output end of the first lifting device 9163 passes through the fixed mounting plate 9162 and extends A limiting pressure plate 9164 is installed above the V-shaped supporting plate 902. The limiting pressure plate 9164 is located on the lateral side of the first lifting device 9163 and is provided with a guide plug rod 9165. The guide plug rod 9165 is plugged and connected to the fixed mounting plate 9162. An arc-shaped limiting groove 9166 is provided at the bottom of the limiting pressure plate 9164 corresponding to the axial position of the fixed chuck 4 in the longitudinal direction, so as to limit the rotating pipe and prevent it from jumping upward. At the same time, it can also cooperate with the electromagnet 912 to keep the relative position of the pipe stable during the lifting process of the V-shaped supporting plate 902 to prevent the pipe from slipping off the V-shaped supporting plate 902 during the lifting process.

[0045] like Figure 7 As shown, the lifting mechanism 917 includes a ball nut seat 9171 arranged on the lifting support mounting plate 915 longitudinally close to one end of the support mounting plate 8, a transmission screw 9172 is arranged in the ball nut seat 9171, and second support rotating seats 9173 are arranged at both ends of the transmission screw 9172. The second support rotating seats 9173 are connected to the longitudinal side surface of the support mounting plate 8, and a second rotating motor 9174 is arranged on the outside of the second support rotating seat 9173 at one end of the transmission screw 9172. The second rotating motor 9174 is fixedly connected to the support mounting plate 8, and the output end of the second rotating motor 9174 is connected to one end of the transmission screw 9172, so as to realize the driving of the U-shaped lifting support plate 901 and the components installed on the U-shaped lifting support plate 901 to realize lifting.

[0046] like Figures 8 to 9As shown, the slag removal component 11 includes a U-shaped lifting support frame 1101, both ends of the U-shaped lifting support frame 1101 are plug-connected with the top of the workbench 7, a second lifting device 1102 is arranged between the middle of the bottom of the U-shaped lifting support frame 1101 and the top of the workbench 7, a movable support seat 1103 is slidably connected to the top of the U-shaped lifting support frame 1101 along the transverse direction, a linear transmission mechanism 1104 is arranged between the movable support seat 1103 and the longitudinal side surface of the U-shaped lifting support frame 1101, a guide support column 1105 is arranged at one end of the top of the U-shaped lifting support frame 1101 near the fixed chuck 4, and a movable support rod 1106 is plug-connected to the guide support column 1105, and the movable support rod 1106 is connected to the fixed chuck 4. The axis of the chuck 4 is located in the same longitudinal position, and a support mounting rod 1107 is installed at one end of the movable support rod 1106 close to the fixed chuck 4, and the other end is connected to the movable support seat 1103. A protective plate 1108 made of graphite is arranged on the top of the support mounting rod 1107, and a scraper plate 1109 is arranged on the bottom to scrape off the slag generated on the inner wall of the pipe during the cutting process. The support mounting rod 1107 and the movable support rod 1106 are connected by bolts to facilitate the replacement of scraper plates 1109 of different types. With the cooperation of the second lifting device 1102 and the U-shaped lifting support frame 1101, round pipes of different sizes can be operated to improve the scope of application.

[0047] The linear transmission mechanism 1104 is a transmission structure in which a driving motor is installed with a transmission gear and a transmission rack meshing with each other, so as to drive the mobile support seat 1103 to slide horizontally, and with the cooperation of the guide support column 1105 and the mobile support rod 1106, drive the support installation rod 1107 installed with a scraper plate 1109 to enter and exit the inner side of the pipe; the upper surface of the electromagnet 912 is located between the inner surface of the V-shaped support plate 902 and the end of the support lifting roller 911 away from the inner surface of the V-shaped support plate 902, so as to avoid the inclined surface of the electromagnet 912 being too high and affecting the contact between the round pipe and the support lifting roller 911, so as to ensure the support and lifting effect of the pipe, so that the electromagnet 912 is close to the pipe and generates a certain adsorption force on it; between the first support rotating seat 904 and the support rotating shaft 903 and the second support rotating seat A rotating bearing is arranged between 9173 and the transmission screw 9172 to ensure smooth rotation of the supporting rotating shaft 903 and the transmission screw 9172; in addition, the movable chuck 2 is installed with a moving mechanism for driving it to move, and the fixed chuck 4 is installed with a driving mechanism for driving it to rotate. The moving mechanism on the movable chuck 2, the driving mechanism on the fixed chuck 4, the laser cutting head mechanism 5, the first rotating motor 905, the pressure sensor 909, the level sensor 910, the electromagnet 912, the first lifting device 9163, the second rotating motor 9174, the second lifting device 1102, and the driving motor in the linear transmission mechanism 1104 are all electrically connected to the control device 6 to control the working state of each driving component and receive data transmitted by the pressure sensor 909 and the level sensor 910.

[0048] Working principle: Cutting preparation: The control device controls the first rotating motor to drive the support rotating shaft to rotate, so that the V-shaped support plate rotates to the highest point along the support rotating shaft, so that it is in the same longitudinal position as the axis of the fixed chuck. At the same time, the longitudinal side surface of the V-shaped support plate contacts the support limit column. Then, according to the size of the round tube, the second rotating motor is controlled to drive the transmission screw to rotate, and the U-shaped lifting support plate and the V-shaped support plate are driven to rise through the ball nut seat to support and lift the pipe extending out of the fixed chuck to prevent the pipe from sagging or jumping. At the same time, the pressure sensor will be The gravity change of the V-shaped support plate is monitored at the same time, and the lifting force applied to the pipe is monitored according to the pressure difference to ensure that the lifting force is moderate. Then the first lifting device is controlled to drive the limit pressure plate to descend, and the arc-shaped limit groove is used to limit the pipe to prevent the pipe from jumping upward during the rotation process. Finally, according to the size of the pipe, the height of the U-shaped lifting support frame is adjusted through the second lifting device, so that the movable support rod and the fixed chuck are in a coaxial position. Under the cooperation of the linear transmission mechanism, the movable support seat, the guide support column and the movable support rod, the support installation rod and the scraper plate are driven to enter the pipe cutting position;

[0049] Cutting process: After the cutting preparation is completed, the laser cutting head mechanism can be controlled to emit a high-power density laser beam to perform thermal cutting on the pipe. During the cutting process, the smoke and dust generated by the cutting are removed through the cooperation of the air cavity, the dust extraction hole and the dust extraction mechanism connected to the air cavity at the output end. The scraper plate extending into the cutting position on the inner side of the pipe scrapes off the slag generated during the cutting process. At the same time, different types of scraper plates can be replaced according to the size of the pipe to improve the slag removal effect.

[0050] Blanking process: After the pipe is cut, the lifting mechanism drives the V-shaped support plate holding the pipe to descend and approach the collection box. During this process, the electromagnet continues to adsorb the pipe to prevent it from slipping. When the pipe is close to the collection box, the electromagnet stops working. At the same time, the first lifting device drives the limit pressure plate to rise and away from the pipe. Then the first rotating motor drives the supporting rotating shaft to rotate, so that the V-shaped support plate rotates 45-90 degrees, so that the pipe is separated from the V-shaped support plate and falls into the collection box to complete the blanking.

[0051] 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.

[0052] 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 for round tubes, comprising a bed body (1), a movable chuck (2) being slidably connected to the bed body (1), a support mounting frame (3) being arranged at the cutting end of the bed body (1), a fixed chuck (4) being arranged inside the support mounting frame (3), a laser cutting head mechanism (5) being arranged at the top of the support mounting frame (3), and a control device (6) being arranged on one longitudinal side of the support mounting frame (3), characterized in that: A workbench (7) is arranged on one lateral side of the cutting end of the bed body (1), and a support mounting plate (8) is arranged on one longitudinal end between the bed body (1) and the workbench (7). A support blanking assembly (9) is slidably connected to the support mounting plate (8) on one side of the support blanking assembly (5) in a vertical direction, and a material collecting box (10) is arranged below the support blanking assembly (9). A slag removal assembly (11) is arranged on the workbench (7).

2. The laser tube cutting machine for round tubes according to claim 1, characterized in that: The support blanking assembly (9) comprises a U-shaped lifting support plate (901), the two ends of the U-shaped lifting support plate (901) are slidably connected to the longitudinal side surface of the support mounting plate (8) in the vertical direction, a V-shaped material supporting plate (902) is arranged above the U-shaped lifting support plate (901), the V-shaped material supporting plate (902) and the axis of the fixed chuck (4) are located at the same longitudinal position, a support rotating shaft (903) is arranged below the V-shaped material supporting plate (902), and the two ends of the support rotating shaft (903) are provided with a first support rotating seat (904), the first support rotating seat (904) is fixedly installed on the top of the U-shaped lifting support plate (901), and the one end of the support rotating shaft (903) is A first rotating motor (905) is arranged outside the first supporting rotating seat (904), and the first rotating motor (905) is fixedly installed on the top of the U-shaped lifting supporting plate (901). The output end of the first rotating motor (905) is connected to one end of the supporting rotating shaft (903), and a U-shaped supporting connecting plate (906) is arranged on the outer surface of the supporting rotating shaft (903). A plurality of supporting plug-in rods (907) are equidistantly arranged at the bottom of the V-shaped supporting plate (902), and the supporting plug-in rods (907) are plug-connected with the U-shaped supporting connecting plate (906). One end of the supporting plug-in rod (907) extends into the inner side of the U-shaped supporting connecting plate (906), and a limiting block (908) is installed thereon. The limiting block (908) 08) The top of the U-shaped support connecting plate (906) contacts the inner surface of the top of the U-shaped support connecting plate (906), the top of the U-shaped support connecting plate (906) is provided with a pressure sensor (909) between the support plug rods (907), a levelness sensor (910) is provided at one end of the bottom of the V-shaped support plate (902), two inclined surfaces on the inner side of the V-shaped support plate (902) are symmetrically provided with a plurality of support lifting rollers (911) along the longitudinal direction, and two inclined surfaces on the inner side of the V-shaped support plate (902) are provided with an electromagnet (912) between the support lifting rollers (911), and the outer surfaces on both sides of the longitudinal direction corresponding to the position of the laser cutting head mechanism (5) of the V-shaped support plate (902) are provided with air chambers (913), A plurality of dust extraction holes (914) are equidistantly arranged on the inclined surfaces at both ends of the inner longitudinal side of the V-shaped support plate (902); the dust extraction holes (914) on the inclined surfaces at both ends of the inner longitudinal side of the V-shaped support plate (902) are respectively connected to the wind cavities (913) on the outer surfaces of the two longitudinal sides of the V-shaped support plate (902); the wind cavities (913) are connected to the output end of the dust extraction mechanism; a lifting support mounting plate (915) is arranged on the surface of one side of the U-shaped lifting support plate (901) close to the support mounting plate (8); a rotation limiting mechanism (916) is arranged on the top of the lifting support mounting plate (915); and a lifting mechanism (917) is arranged between the lifting support mounting plate (915) and the support mounting plate (8).

3. The laser tube cutting machine for round tubes according to claim 2 is characterized in that: The rotation limiting mechanism (916) comprises a support limiting column (9161) arranged on the top of the lifting support mounting plate (915); when the V-shaped support plate (902) rotates to the highest point along the support rotation axis (903), one longitudinal side surface contacts the one longitudinal side surface of the support limiting column (9161); fixed mounting plates (9162) are arranged on both lateral sides of the support limiting column (9161); and a first lifting device (9163) is arranged at the bottom of one end of the fixed mounting plate (9162) away from the support limiting column (9161). The top output end of the first lifting device (9163) passes through the fixed mounting plate (9162) and extends to the top of the V-shaped supporting plate (902), where a limiting pressure plate (9164) is installed. The limiting pressure plate (9164) is located on a lateral side of the first lifting device (9163) and is provided with a guide plug rod (9165). The guide plug rod (9165) is plug-connected to the fixed mounting plate (9162). An arc-shaped limiting groove (9166) is provided at the bottom of the limiting pressure plate (9164) in the longitudinal direction corresponding to the axial position of the fixed chuck (4).

4. The laser tube cutting machine for round tubes according to claim 3 is characterized in that: The lifting mechanism (917) includes a ball nut seat (9171) arranged on the lifting support mounting plate (915) in the longitudinal direction close to one end of the support mounting plate (8), a transmission screw (9172) is arranged in the ball nut seat (9171), and second support rotating seats (9173) are arranged at both ends of the transmission screw (9172), and the second support rotating seats (9173) are connected to the longitudinal side surface of the support mounting plate (8), and a second rotating motor (9174) is arranged on the outside of the second support rotating seat (9173) at one end of the transmission screw (9172), and the second rotating motor (9174) is fixedly connected to the support mounting plate (8), and the output end of the second rotating motor (9174) is connected to one end of the transmission screw (9172).

5. The laser tube cutting machine for round tubes according to claim 2, characterized in that: The upper surface of the electromagnet (912) is located between the inner surface of the V-shaped supporting plate (902) and one end of the supporting lifting roller (911) away from the inner surface of the V-shaped supporting plate (902).

6. The laser tube cutting machine for round tubes according to claim 4, characterized in that: Rotation bearings are provided between the first support rotating seat (904) and the support rotating shaft (903), and between the second support rotating seat (9173) and the transmission screw (9172).

7. The laser tube cutting machine for round tubes according to claim 4, characterized in that: The slag removal component (11) comprises a U-shaped lifting support frame (1101), both ends of the U-shaped lifting support frame (1101) are plug-connected to the top of the workbench (7), a second lifting device (1102) is arranged between the middle of the bottom of the U-shaped lifting support frame (1101) and the top of the workbench (7), a movable support seat (1103) is slidably connected to the top of the U-shaped lifting support frame (1101) in a transverse direction, a linear transmission mechanism (1104) is arranged between the movable support seat (1103) and a longitudinal side surface of the U-shaped lifting support frame (1101), and the U-shaped lifting support frame (1101) is connected to the top of the U-shaped lifting support frame (1101) in a transverse direction. A guide support column (1105) is provided at the top of the guide support column (1105) near one end of the fixed chuck (4), and a movable support rod (1106) is installed in a plug-in manner. The movable support rod (1106) and the axis of the fixed chuck (4) are located at the same longitudinal position. A support mounting rod (1107) is installed at one end of the movable support rod (1106) near the fixed chuck (4), and the other end is connected to the movable support seat (1103). A protective plate (1108) made of graphite material is provided on the top of the support mounting rod (1107), and a scraper plate (1109) is provided at the bottom.

8. The laser tube cutting machine for round tubes according to claim 7, characterized in that: The linear transmission mechanism (1104) is a transmission structure in which a driving motor is equipped with a transmission gear and a transmission rack that mesh with each other.

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