A metal pipe laser cutting machine

Abstract

The present invention belongs to the technical field of laser cutting machines, and specifically is a metal pipe laser cutting machine, comprising a workbench, a discharge port being provided at one end of the workbench, a mounting bracket being provided at the upper end of the workbench, a hydraulic cylinder being installed on the upper end face of the mounting bracket, a piston rod end of the hydraulic cylinder passing through the mounting bracket and being fixedly connected to a cross mounting block, a laser cutting assembly being installed at the lower end of the cross mounting block; a solution is usually to place a metal pipe on a bracket, and then use the bracket to drive the metal pipe to rotate, while controlling the head of the laser cutting machine to fit or approach the metal pipe, and then use the head of the laser cutting machine to emit laser to cut the metal pipe during the rotation of the metal pipe, but this cutting method can only cut a single metal pipe at a time, which not only affects the cutting efficiency of the metal pipe, but also the cut metal pipe is affected by the bracket, making it inconvenient to quickly collect it.

Description

Technical Field

[0001] The invention belongs to the technical field of laser cutting machines, in particular to a metal pipe laser cutting machine. Background Art

[0002] Pipe fittings are a general term for components in pipeline systems that play roles in connection, control, direction change, diversion, sealing, and support. During the processing and production of metal pipe fittings, laser cutting machines are usually used for cutting. Laser cutting machines focus the laser emitted from a laser into a high-power density laser beam through an optical path system. The laser beam is irradiated onto the surface of the metal pipe fitting, causing the metal pipe fitting to reach its melting point or boiling point. At the same time, high-pressure gas coaxial with the beam will melt or vaporize the metal to achieve cutting of the metal pipe fitting.

[0003] A patent with publication number CN113695763B discloses a laser cutting machine for separating and processing metal pipes. The patent separates the metal pipes by setting a separation baffle, and the transfer roller and the drive roller drive the metal pipes for transportation. The laser cutting head at the bottom of the laser body is used to cut the metal pipes. The position of the mounting plate on the mounting bracket rod is adjusted using a movable sleeve. The laser measurement sensor at the bottom of the detection plate is used to measure the metal pipes waiting to be inserted into the cutting body. When the subsequent metal pipes do not meet the cutting requirements, the drive roller rotates in the opposite direction to push out the metal pipes, and the telescopic cylinder contracts, so that the distance between the support roller and the transfer roller on the telescopic frame increases, and the metal pipes fall into the residual material bin for collection, which facilitates the cutting processing of metal pipes and improves work efficiency.

[0004] The above scheme still has some problems in practical application. Usually, a metal pipe is placed on a bracket, and then the bracket is used to drive the metal pipe to rotate. At the same time, the head of the laser cutting machine is controlled to fit or approach the metal pipe. Then, during the rotation of the metal pipe, the head of the laser cutting machine is used to emit laser to cut the metal pipe. However, this cutting method can only cut a single metal pipe at a time, which not only affects the cutting efficiency of the metal pipe, but also the cut metal pipe is affected by the bracket, which is inconvenient to collect quickly, which will also affect the subsequent cutting processing of the metal pipe.

[0005] To this end, the present invention provides a metal pipe laser cutting machine. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: a metal pipe laser cutting machine according to the present invention comprises a workbench, a discharge port is provided at one end of the workbench, a mounting frame is provided at the upper end of the workbench, a hydraulic cylinder is mounted on the upper end surface of the mounting frame, the piston rod end of the hydraulic cylinder passes through the mounting frame and is fixedly connected to a cross mounting block, and a laser cutting assembly is mounted at the lower end of the cross mounting block;

[0008] The laser cutting assembly includes a push plate slidably arranged in the inner cavity of the mounting frame, a plurality of laser cutting machine bodies are installed inside the upper end surface of the push plate, and a laser cutting machine head is provided at the lower end of the plurality of laser cutting machine bodies, a power distribution block is installed in the middle of the upper end surface of the push plate, a cross mounting groove is provided at the upper end of the power distribution block, and the cross mounting groove cooperates with the cross mounting block to be fixedly connected to the piston rod end of the hydraulic cylinder, a wire is installed at the upper end of the laser cutting machine body, and one end of the wire is electrically connected to the power distribution block;

[0009] A plurality of semicircular limiting grooves are provided on the upper end surface of the workbench, and the inner cavities of the plurality of semicircular limiting grooves are used for placing metal pipe fittings.

[0010] Preferably, the push plate has receiving grooves at the four corners of its lower end surface, the inner cavity of the receiving groove is slidably connected with a T-shaped sliding column, the lower end of the T-shaped sliding column is fixedly connected to a pressing plate, and a latex pad is provided on the lower end surface of the pressing plate.

[0011] Preferably, a spring is fixed to the bottom of the inner cavity of the storage groove, one end of the spring is fixed to the pressing plate, a plurality of through openings are evenly opened on the lower end surface of the pressing plate, two limiting sliding columns are symmetrically installed on the upper end surface of the push plate, and the two limiting sliding columns are slidably connected to the mounting frame.

[0012] Preferably, a plurality of dust extraction holes are evenly opened on the inner wall of the through hole, an air guide groove is opened inside the lower end surface of the pressing plate, the air guide groove is connected with the dust extraction holes, and dust suction ports are opened at both ends of the pressing plate, and the dust suction ports are connected with the inner cavity of the air guide groove.

[0013] Preferably, a material receiving trough is provided on one side of the upper end surface of the workbench, and the bottom of the inner cavity of the material receiving trough is provided with an inclined material guiding wall, and the inner cavity of the material receiving trough is connected with the material discharge port.

[0014] Preferably, a fixing bracket is installed on one side of the upper end surface of the workbench, one side of the fixing bracket is rotatably connected to two screw rods, and one end of the two screw rods is rotatably connected to the mounting bracket, and the external thread of the screw rod is connected to a cutting auxiliary component.

[0015] Preferably, the cutting auxiliary component includes a sliding frame threadedly connected to the outside of the screw rod, and the inner cavity of the sliding frame is rotatably connected to a plurality of bidirectional threaded rods, and the plurality of bidirectional threaded rods are fixed in series with each other, and each bidirectional threaded rod is symmetrically threaded with a first sliding rod and a second sliding rod on the outside.

[0016] Preferably, a plurality of through slots are provided between the first slide bar and the second slide bar, and a pulley is rotatably connected to the inner cavity of each through slot, and a plurality of rubber anti-slip teeth are evenly provided on the outside of the pulley. A micro motor is provided on one side of the first slide bar, and the output shaft end of the micro motor is fixedly connected to the pulley.

[0017] Preferably, a plurality of partitions are fixedly connected to the upper wall of the inner cavity of the mounting frame, a plurality of plug-in columns are provided on both sides of the lower end of the mounting frame, and the mounting frame is plugged and installed with the workbench through the plug-in columns.

[0018] Preferably, a plurality of partition blocks are installed on one side of the upper end surface of the workbench, and a limit frame is installed on both end surfaces of the plurality of partition blocks. One end of the limit frame is fixedly connected to the mounting frame, and a plurality of balls are evenly arranged in the inner cavity of the semicircular limit groove.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The metal pipe laser cutting machine described in the present invention drives the laser cutting head downward by driving the push plate, so that the laser cutting head slides into the through opening and focuses on the metal pipe, and at the same time drives the pressing plate to position and press the metal pipe in the semicircular limit groove to keep it stable, and the latex pad on the lower end face of the pressing plate can be deformed according to the metal pipe, ensuring the pressing force and forming an independent space in the through opening, and then the laser cutting head is used to emit laser to cut the metal pipe, and the smoke and sparks generated during the cutting of the metal pipe will only be sputtered in the independent space, thereby preventing the sparks from sputtering out of the laser cutting machine and causing safety hazards such as fire, and also preventing the sparks from sputtering onto the operator, causing harm to the operator's safety.

[0021] 2. The metal pipe laser cutting machine described in the present invention is installed by connecting it with an external vacuum cleaner through a dust suction port. A small vacuum cleaner or exhaust fan can also be installed at the dust suction port according to actual usage. The vacuum cleaner is then used to draw the sparks and smoke generated by the cutting of the metal pipe in the independent space into the air guide groove through the dust suction port, and then extracted and collected through the dust suction port. This solves the problem that when the existing laser cutting machine cuts metal pipes, the metal will be melted or vaporized at high temperature during laser cutting of the metal pipe, and then quickly cooled and solidified into tiny metal particles. These particles are metal dust. If the operator inhales a large amount of smoke containing metal dust for a long time, it will cause safety hazards to the lungs and other physical health.

[0022] 3. The metal pipe laser cutting machine described in the present invention can make multiple metal pipes on the same horizontal plane by conveying multiple metal pipes into the inner cavity of the semicircular limiting groove, and using the cutting auxiliary component to clamp the multiple metal pipes and abut against the fixed frame, and then use the cutting auxiliary component to drive the multiple metal pipes to move, and adjust the length of the metal pipes to be cut as needed. At the same time, the cutting auxiliary component drives the metal pipes to rotate, and cooperates with the laser cutting head to cut the metal pipes, thereby solving the problem that when the existing laser cutting machine is cutting multiple metal pipes, it is inconvenient to drive the metal pipes to rotate, which causes the laser cutting head to be unable to effectively cut the metal pipes. Increasing the power of the laser cutting machine will cause the laser power emitted by the laser cutting machine to be too large to penetrate the metal pipes and cause damage to the workbench. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 It is a schematic structural diagram of the main view of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the rear-view stereo of the present invention;

[0026] Figure 3 This is a partial cross-sectional schematic diagram of the internal structure of the workbench of the present invention;

[0027] Figure 4 This is a schematic diagram of the installation structure of the laser cutting assembly of the present invention;

[0028] Figure 5 This is a schematic diagram of the main installation structure of the laser cutting machine of the present invention;

[0029] Figure 6 This is a partial cross-sectional schematic diagram of the internal structure of the pressing plate of the present invention;

[0030] Figure 7 This is a schematic diagram of the overall structure of the mounting frame of the present invention when viewed from above;

[0031] Figure 8 This is a schematic diagram of a partial cross-section of the push plate of the present invention;

[0032] Figure 9 This is a schematic diagram of the overall structure of the cutting auxiliary component of the present invention;

[0033] In the figure: 1. Workbench; 2. Discharge port; 3. Fixing frame; 4. Screw; 5. Cutting auxiliary components;

[0034] 51. Sliding frame; 52. Bidirectional threaded rod; 53. First sliding rod; 54. Second sliding rod; 55. Micro motor; 56. Through slot; 57. Pulley;

[0035] 6. Mounting frame; 7. Hydraulic cylinder; 8. Limiting slide; 9. Limiting frame; 10. Separator; 11. Metal pipe; 12. Semicircular limiting groove; 13. Laser cutting assembly; 14. Insert column; 15. Partition; 16. Cross mounting block; 17. Push plate; 18. Distribution block; 19. Cross mounting groove; 20. Laser cutting machine body; 21. Wire; 22. Laser cutting machine head; 23. Material receiving trough; 24. Pressing plate; 25. Through port; 26. Dust extraction hole; 27. Air guide groove; 28. Dust suction port; 29. ​​T-shaped slide; 30. Spring; 31. Storage slot. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0037] Example 1

[0038] like Figures 1 to 9 As shown, a metal pipe laser cutting machine according to an embodiment of the present invention includes a workbench 1, a discharge port 2 is formed at one end of the workbench 1, a mounting frame 6 is provided at the upper end of the workbench 1, a hydraulic cylinder 7 is mounted on the upper end surface of the mounting frame 6, the piston rod end of the hydraulic cylinder 7 passes through the mounting frame 6 and is fixedly connected to a cross mounting block 16, and a laser cutting assembly 13 is mounted at the lower end of the cross mounting block 16;

[0039] The laser cutting assembly 13 includes a push plate 17 slidably arranged in the inner cavity of the mounting frame 6, a plurality of laser cutting machine bodies 20 are installed inside the upper end surface of the push plate 17, and a laser cutting machine head 22 is provided at the lower end of the plurality of laser cutting machine bodies 20, a power distribution block 18 is installed in the middle of the upper end surface of the push plate 17, a cross mounting groove 19 is opened at the upper end of the power distribution block 18, and the cross mounting groove 19 cooperates with the cross mounting block 16 to be fixedly connected to the piston rod end of the hydraulic cylinder 7, a wire 21 is installed at the upper end of the laser cutting machine body 20, and one end of the wire 21 is electrically connected to the power distribution block 18;

[0040] A plurality of semicircular limiting grooves 12 are formed on the upper end surface of the workbench 1 , and the inner cavities of the plurality of semicircular limiting grooves 12 are used for placing metal pipes 11 .

[0041] Specifically, in the prior art, a metal pipe is usually placed on a bracket, and then the bracket is used to drive the metal pipe to rotate. At the same time, the head of the laser cutting machine is controlled to fit or approach the metal pipe. Then, during the rotation of the metal pipe, the head of the laser cutting machine emits laser to cut the metal pipe. However, this cutting method can only cut a single metal pipe at a time, which not only affects the cutting efficiency of the metal pipe, but also the cut metal pipe is affected by the bracket, making it inconvenient to quickly collect it, which also affects the subsequent cutting process of the metal pipe.

[0042] The present invention conveys multiple metal pipes 11 into the inner cavity of the semicircular limiting groove 12, and when placing the multiple metal pipes 11 into the semicircular limiting groove 12, pre-aligns the multiple metal pipes 11 so that when the multiple metal pipes 11 are cut simultaneously, the cut metal pipes 11 are ensured to be of the same length and standard, and then the hydraulic cylinder 7 is started to drive the cross mounting block 16 to move downward, and the cross mounting block 16 pushes the distribution block 18 to move downward, and at the same time the distribution block 18 drives the push plate 17 to move downward, and then drives the laser cutting machine body 20 to move downward. During the downward movement of the laser cutting machine body 20, the laser cutting head 22 will be driven to move synchronously, so that the laser cutting head 22 is in close contact with the metal pipes 11 in the inner cavity of the semicircular limiting groove 12. The laser cutting machine 20 is powered by the power distribution block 18, and the power distribution block 18 uses the wire 21 to power the laser cutting machine body 20, so that the laser cutting head 22 cuts the metal pipe 11, and the laser emitted by the laser cutting head 22 is kept on the same vertical line as the semicircular limit groove 12, and then the metal pipe 11 is pushed out of the length of the semicircular limit groove 12, which is the metal pipe 11 that needs to be processed and cut, and the processed and cut metal pipe 11 will fall into the inner cavity of the workbench 1, and then be discharged and quickly collected through the discharge port 2, thereby realizing the simultaneous processing and production of multiple metal pipes 11, improving the efficiency of metal pipe processing and production, and quickly collecting the cut metal pipes 11, thereby solving the above-mentioned problem.

[0043] like Figure 5 、 Figure 6 and Figure 8 As shown, the lower end surface of the push plate 17 is provided with receiving grooves 31 at the four corners, and the inner cavity of the receiving groove 31 is slidably connected to a T-shaped sliding column 29, the lower end of the T-shaped sliding column 29 is fixedly connected to the pressing plate 24, and the lower end surface of the pressing plate 24 is provided with a latex pad.

[0044] like Figure 6 and Figure 8 As shown, a spring 30 is fixed to the bottom of the inner cavity of the storage groove 31, one end of the spring 30 is fixed to the pressing plate 24, and a plurality of through openings 25 are evenly opened on the lower end surface of the pressing plate 24. Two limit slides 8 are symmetrically installed on the upper end surface of the push plate 17, and the two limit slides 8 are slidably connected to the mounting frame 6.

[0045] Specifically, by pre-aligning multiple metal pipes 11 and pushing them into the semicircular limiting groove 12, one end of the semicircular limiting groove 12 is used as a base point to push the metal pipe 11 into the inner cavity of the workbench 1. The length of the metal pipe 11 that needs to be cut and processed this time will be obtained. Then, the pushing plate 17 is driven to move downward, and the pushing plate 17 uses the T-shaped slide column 29 to drive the pressing plate 24 to move downward. At the same time, the pressing plate 24 uses the latex pad to press the metal pipe 11 in the inner cavity of the semicircular limiting groove 12 to keep it stable, and the latex pad can be deformed according to the metal pipe 11 to ensure the pressing force. Then, as the pushing plate 17 continues to move downward, the pressing plate 24 will push the T-shaped slide column 29 to slide in the inner cavity of the receiving groove 31, and at the same time, squeeze the spring 30 to be received into the inner cavity of the receiving groove 31. At this time, the pushing plate 17 is pushed downward. The plate 17 pushes the laser cutting machine body 20 to drive the laser cutting head 22 to slide into the inner cavity of the through opening 25, and then fits with the surface of the metal pipe 11, and then uses the laser cutting head 22 to emit laser to cut the metal pipe 11, thereby ensuring the stability of the metal pipe 11 during cutting, and the smoke and sparks generated when the laser cutting head 22 cuts the metal pipe 11 will only be sputtered in the inner cavity of the through opening 25, thereby preventing the sparks generated by the cutting from sputtering out of the laser cutting machine and causing safety hazards such as fire, and also preventing the sparks from sputtering onto the operator, thereby solving the problem that when the existing laser cutting machine is cutting metal pipes, if the sparks generated during the cutting process are not protected, the sparks generated by the cutting will be sputtered out of the laser cutting machine and cause safety hazards such as fire, and will also endanger the safety of the operator.

[0046] like Figure 6 and Figure 8 As shown, a plurality of dust extraction holes 26 are evenly provided on the inner wall of the opening 25, an air guide groove 27 is provided inside the lower end surface of the pressing plate 24, and the air guide groove 27 is connected to the dust extraction holes 26, and dust suction ports 28 are provided at both ends of the pressing plate 24, and the dust suction ports 28 are connected to the inner cavity of the air guide groove 27.

[0047] like Figure 1 and Figure 3 As shown, a material receiving trough 23 is provided on one side of the upper end surface of the workbench 1 , and the bottom of the inner cavity of the material receiving trough 23 is configured as an inclined material guiding wall, and the inner cavity of the material receiving trough 23 is communicated with the discharge port 2 .

[0048] Specifically, when the metal pipe 11 is cut by the laser cutting head 22, the dust suction port 28 is connected to the external dust collector for installation. A small dust collector or exhaust fan can also be installed at the dust suction port 28 according to actual usage. Then, the dust collector is used to extract air through the dust suction port 28, and at the same time, the air in the inner cavity of the air guide groove 27 is extracted, and the air in the inner cavity of the port 25 is extracted in conjunction with the dust extraction hole 26. The sparks and smoke generated by the cutting of the metal pipe 11 are sucked into the inner cavity of the air guide groove 27 through the dust extraction hole 26, and then extracted and collected through the dust suction port 28, and the cut metal is The metal pipe 11 will fall into the inner cavity of the receiving trough 23. Since the bottom of the inner cavity of the receiving trough 23 is set as an inclined material guide wall, after the metal pipe 11 falls into the inner cavity of the receiving trough 23, it will be guided to be discharged and collected through the discharge port 2, thereby solving the problem that when the existing laser cutting machine cuts metal pipes, the metal will be melted or vaporized at high temperature due to laser cutting of metal pipes, and then quickly cooled and solidified into tiny metal particles. These particles are metal dust. If the operator inhales a large amount of fume containing metal dust for a long time, it will cause safety hazards to the lungs and other physical health.

[0049] Example 2

[0050] like Figure 1 、 Figure 2 and Figure 9 As shown, a fixing frame 3 is installed on one side of the upper end surface of the workbench 1, and two screw rods 4 are rotatably connected to one side of the fixing frame 3, and one end of the two screw rods 4 is rotatably connected to the mounting frame 6, and the external thread of the screw rod 4 is connected to the cutting auxiliary component 5.

[0051] like Figure 1 、 Figure 2 and Figure 9 As shown, the cutting auxiliary component 5 includes a sliding frame 51 threadedly connected to the outside of the screw rod 4, and the inner cavity of the sliding frame 51 is rotatably connected to a plurality of bidirectional threaded rods 52, and the plurality of bidirectional threaded rods 52 are fixed in series with each other, and each bidirectional threaded rod 52 is symmetrically threaded with a first slide rod 53 and a second slide rod 54 on the outside.

[0052] like Figure 2 and Figure 9 As shown, a plurality of through slots 56 are provided between the first slide bar 53 and the second slide bar 54, and a pulley 57 is rotatably connected to the inner cavity of each through slot 56. A plurality of rubber anti-slip teeth are evenly arranged on the outside of the pulley 57. A micro motor 55 is provided on one side of the first slide bar 53, and the output shaft end of the micro motor 55 is fixedly connected to the pulley 57.

[0053] Specifically, the plurality of metal pipes 11 are conveyed into the inner cavity of the semicircular limiting groove 12, and the plurality of metal pipes 11 are abutted against the first slide bar 53 and the second slide bar 54, so that the plurality of metal pipes 11 are kept in the same plane, and then the bidirectional threaded rod 52 is driven to rotate, and the bidirectional threaded rod 52 is threaded to drive the first slide bar 53 and the second slide bar 54 to move away from each other. After the first slide bar 53 and the second slide bar 54 are opened away from each other, the screw rod 4 is driven to rotate, and the screw rod 4 is threaded to drive the sliding frame 51 to the inner cavity of the mounting frame 6. The first slide bar 53 and the second slide bar 54 are moved to the outside of the metal pipe 11, and then the bidirectional threaded rod 52 is driven to rotate, and the bidirectional threaded rod 52 is threaded to drive the first slide bar 53 and the second slide bar 54 to move closer to each other, so that the first slide bar 53 and the second slide bar 54 drive the pulley 57 to clamp and fix the metal pipe 11, and at the same time, the screw rod 4 is driven to rotate, and the screw rod 4 is threaded to drive the sliding frame 51 to move toward the fixing frame 3, so that the first slide bar 53 and the second slide bar 54 drive the metal pipe 11 to move closer to each other. The pipe 11 moves synchronously, and after the first slide bar 53 and the second slide bar 54 drive the metal pipe 11 to move to the required cutting length, the screw rod 4 is stopped, and then the micro motor 55 is started to drive the pulley 57 to rotate, and the pulley 57 is evenly provided with a plurality of rubber anti-slip teeth blocks, so that the pulley 57 drives the metal pipe 11 to rotate, and then cooperates with the laser cutting head 22 to cut the metal pipe 11. After the metal pipe 11 is cut, by driving the bidirectional threaded rod 52 to rotate, the first slide bar 53 and the second slide bar 54 are threadedly driven to move away from each other, so that the cut metal pipe 11 falls into the inner cavity of the receiving trough 23 for collection, thereby realizing rapid cutting of the metal pipe and solving the problem that when the existing laser cutting machine cuts multiple metal pipes, it is inconvenient to drive the metal pipe to rotate, which causes the laser cutting head to be unable to effectively cut the metal pipe, and increasing the power of the laser cutting machine will cause the laser power emitted by the laser cutting machine to be too large to penetrate the metal pipe and damage the workbench.

[0054] like Figure 1 and Figure 7 As shown, a plurality of partitions 15 are fixedly connected to the upper wall of the inner cavity of the mounting frame 6 , a plurality of plug-in columns 14 are provided on both sides of the lower end of the mounting frame 6 , and the mounting frame 6 is plugged and installed with the workbench 1 through the plug-in columns 14 .

[0055] like Figures 1 to 3 As shown, a plurality of partition blocks 10 are installed on one side of the upper end surface of the workbench 1, and a limit frame 9 is installed on both end surfaces of the plurality of partition blocks 10. One end of the limit frame 9 is fixedly connected to the mounting frame 6, and a plurality of balls are evenly arranged in the inner cavity of the semicircular limit groove 12.

[0056] The working principle is to convey multiple metal pipes 11 into the inner cavity of the semicircular limiting groove 12, and make the multiple metal pipes 11 abut against the first slide bar 53 and the second slide bar 54, so that the multiple metal pipes 11 are kept in the same plane, and then drive the two-way threaded rod 52 to rotate, and make the two-way threaded rod 52 thread-drive the first slide bar 53 and the second slide bar 54 to move away from each other. After the first slide bar 53 and the second slide bar 54 are opened away from each other, the screw rod 4 is driven to rotate, and the screw rod 4 thread-drives the sliding frame 51 to move into the inner cavity of the mounting frame 6, so that the first slide bar 53 and the second slide bar 54 slide to the outside of the metal pipe 11, and then drive the two-way threaded rod 52 to rotate, and make the two-way threaded rod 52 thread-drive the first slide bar 53 and the second slide bar 54 to move away from each other. The rod 52 threadedly drives the first slide bar 53 and the second slide bar 54 to move closer to each other, thereby causing the first slide bar 53 and the second slide bar 54 to drive the pulley 57 to clamp and fix the metal pipe 11. At the same time, the screw rod 4 is driven to rotate, and the screw rod 4 threadedly drives the sliding frame 51 to move toward the fixing frame 3, thereby causing the first slide bar 53 and the second slide bar 54 to drive the metal pipe 11 to move synchronously. After the first slide bar 53 and the second slide bar 54 drive the metal pipe 11 to move to the required cutting length, the screw rod 4 is stopped from rotating, and then the micro motor 55 is started to drive the pulley 57 to rotate. The pulley 57 is evenly provided with a plurality of rubber anti-skid teeth on the outside, thereby causing the pulley 57 to drive the metal pipe 11 to rotate.

[0057] During the rotation of the metal pipe 11, the pushing plate 17 is driven to move downward, and the pushing plate 17 uses the T-shaped sliding column 29 to drive the pressing plate 24 to move downward. At the same time, the pressing plate 24 uses the latex pad to press the metal pipe 11 in the inner cavity of the semicircular limiting groove 12 to keep it stable. The latex pad can be deformed according to the metal pipe 11 to ensure the pressing force. Then, as the pushing plate 17 continues to move downward, the pressing plate 24 will push the T-shaped sliding column 29 to slide in the inner cavity of the receiving groove 31, and at the same time squeeze the spring 30 to be received in the inner cavity of the receiving groove 31. At this time, The push plate 17 pushes the laser cutting machine body 20 to drive the laser cutting head 22 to slide into the inner cavity of the through opening 25, and then fits the surface of the metal pipe 11. Then, the laser cutting head 22 is used to emit laser to cut the metal pipe 11, thereby ensuring the stability of the metal pipe 11 during cutting. In addition, the smoke and sparks generated when the laser cutting head 22 cuts the metal pipe 11 will only be sputtered in the inner cavity of the through opening 25, thereby preventing the sparks generated by the cutting from sputtering out of the laser cutting machine and causing safety hazards such as fire, and also preventing the sparks from sputtering onto the operator.

[0058] When the laser cutting head 22 is used to cut the metal pipe 11, the dust suction port 28 is connected to the external dust collector for installation. A small vacuum cleaner or exhaust fan can also be installed at the dust suction port 28 according to actual usage. The vacuum cleaner is then used to exhaust air through the dust suction port 28, while extracting the air in the inner cavity of the air guide groove 27, and cooperating with the dust extraction hole 26 to extract the air in the inner cavity of the opening 25. The sparks and smoke generated by the cutting of the metal pipe 11 are sucked into the inner cavity of the air guide groove 27 through the dust extraction hole 26, and then extracted and collected through the dust suction port 28. The metal pipe 11 processed by the cutting will fall into the inner cavity of the receiving trough 23. Since the bottom of the inner cavity of the receiving trough 23 is set as an inclined material guide wall, after the metal pipe 11 falls into the inner cavity of the receiving trough 23, it will be guided to be discharged and collected through the discharge port 2.

[0059] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal pipe laser cutting machine, characterized by: The invention comprises a workbench (1), wherein a discharge port (2) is provided at one end of the workbench (1), a mounting frame (6) is provided at the upper end of the workbench (1), a hydraulic cylinder (7) is mounted on the upper end surface of the mounting frame (6), a piston rod end of the hydraulic cylinder (7) passes through the mounting frame (6) and is fixedly connected to a cross mounting block (16), and a laser cutting assembly (13) is mounted at the lower end of the cross mounting block (16); The laser cutting assembly (13) includes a push plate (17) slidably arranged in the inner cavity of the mounting frame (6), a plurality of laser cutting machine bodies (20) are installed inside the upper end surface of the push plate (17), and a laser cutting machine head (22) is provided at the lower end of the plurality of laser cutting machine bodies (20), a power distribution block (18) is installed in the middle of the upper end surface of the push plate (17), a cross mounting groove (19) is provided at the upper end of the power distribution block (18), and the cross mounting groove (19) cooperates with the cross mounting block (16) to be fixedly connected to the piston rod end of the hydraulic cylinder (7), a wire (21) is installed at the upper end of the laser cutting machine body (20), and one end of the wire (21) is electrically connected to the power distribution block (18); The upper end surface of the workbench (1) is provided with a plurality of semicircular limiting grooves (12), and the inner cavities of the plurality of semicircular limiting grooves (12) are used for placing metal pipes (11); The lower end surface of the push plate (17) is provided with receiving grooves (31) at the four corners, the inner cavity of the receiving groove (31) is slidably connected with a T-shaped sliding column (29), the lower end of the T-shaped sliding column (29) is fixedly connected with a pressing plate (24), and the lower end surface of the pressing plate (24) is provided with a latex pad; A spring (30) is fixed to the bottom of the inner cavity of the receiving groove (31), one end of the spring (30) is fixed to the pressing plate (24), a plurality of openings (25) are evenly opened on the lower end surface of the pressing plate (24), two limiting slides (8) are symmetrically installed on the upper end surface of the pushing plate (17), and the two limiting slides (8) are slidably connected to the mounting frame (6); The inner wall of the through hole (25) is evenly provided with a plurality of dust extraction holes (26); the lower end surface of the pressing plate (24) is provided with an air guide groove (27), the air guide groove (27) is communicated with the dust extraction holes (26); both ends of the pressing plate (24) are provided with dust suction ports (28), the dust suction ports (28) are communicated with the inner cavity of the air guide groove (27); A fixing frame (3) is installed on one side of the upper end surface of the workbench (1); one side of the fixing frame (3) is rotatably connected to two screw rods (4), and one end of the two screw rods (4) is rotatably connected to the mounting frame (6); the outer surface of the screw rods (4) is threadedly connected to a cutting auxiliary component (5); The cutting auxiliary component (5) includes a sliding frame (51) threadedly connected to the outside of the screw rod (4), and the inner cavity of the sliding frame (51) is rotatably connected to a plurality of bidirectional threaded rods (52), and the plurality of bidirectional threaded rods (52) are fixedly connected in series with each other, and each bidirectional threaded rod (52) is symmetrically threadedly connected to a first sliding rod (53) and a second sliding rod (54) on the outside.

2. The metal pipe laser cutting machine according to claim 1, characterized in that: A material receiving trough (23) is provided on one side of the upper end surface of the workbench (1), and the bottom of the inner cavity of the material receiving trough (23) is provided with an inclined material guiding wall, and the inner cavity of the material receiving trough (23) is communicated with the discharge port (2).

3. The metal pipe laser cutting machine according to claim 1, characterized in that: A plurality of through slots (56) are provided between the first slide bar (53) and the second slide bar (54), and a pulley (57) is rotatably connected to the inner cavity of each through slot (56), and a plurality of rubber anti-slip teeth are evenly arranged on the outside of the pulley (57). A micro motor (55) is provided on one side of the first slide bar (53), and the output shaft end of the micro motor (55) is fixedly connected to the pulley (57).

4. The metal pipe laser cutting machine according to claim 1, characterized in that: A plurality of partitions (15) are fixedly connected to the upper wall of the inner cavity of the mounting frame (6), a plurality of plug-in columns (14) are provided on both sides of the lower end of the mounting frame (6), and the mounting frame (6) is plugged and installed with the workbench (1) via the plug-in columns (14).

5. The metal pipe laser cutting machine according to claim 1, characterized in that: A plurality of partition blocks (10) are installed on one side of the upper end surface of the workbench (1), and a limiting frame (9) is installed on both end surfaces of the plurality of partition blocks (10), one end of the limiting frame (9) is fixedly connected to the mounting frame (6), and a plurality of balls are evenly arranged in the inner cavity of the semicircular limiting groove (12).

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