Separation machining laser cutting machine for metal pipe fittings

Abstract

The invention relates to the technical field of laser cutting machines, and discloses a metal pipe separation machining laser cutting machine which comprises a workbench, two supporting strips are fixedly installed on the workbench, a supporting frame a is arranged on the two supporting strips, a laser cutting head is arranged on the supporting frame a, a supporting frame b is arranged on the two supporting strips, and a laser cutting head is arranged on the supporting frame b. A moving device is arranged on the supporting frame b, the moving device can drive a moving block to move to extrude one of the trapezoidal blocks along with movement, in this way, a pressure block can be driven by a lifting rod to move downwards to extrude and fix the cut metal pipe, and after the metal pipe is cut, the moving block leaves along with the pressure block; in this way, springback of the pressure spring can drive the lifting rod to move upwards through the lifting ring, so that the pressure block can be driven to move upwards, a user can move the steel pipe backwards to prepare lower side cutting, and the cut metal pipe can be moved to prepare lower side cutting when the laser cutting head cuts other metal pipes.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting machines, in particular to a laser cutting machine for separating and processing metal pipes. Background Art

[0002] Laser cutting machines are generally composed of a laser generator, a light guide system, a CNC motion system, a cutting head, an operating table, an air source, a water source and an exhaust system. Their processing methods are characterized by high precision and low processing costs. They are simple to operate and have small errors. They are widely used in the automotive industry, aerospace and other manufacturing fields. The working principle is to use laser as energy. When using a laser cutting machine to cut metal pipes, most of the time, multiple metal pipes are set up on the laser cutting machine for cutting at the same time. Most laser cutting machines need to fix multiple metal pipes during cutting, and then adjust their positions one by one after all the metal pipes are cut for the next cutting. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a laser cutting machine for separating and processing metal pipes, which has the advantages of being able to move the cut metal pipe to prepare for lower side cutting when the laser cutting head is cutting other metal pipes. It solves the problem that when a laser cutting machine is used to cut metal pipes, multiple metal pipes are usually set on the laser cutting machine for cutting at the same time, and most laser cutting machines need to fix multiple metal pipes when cutting, and then adjust the positions one by one for the next cutting after all the metal pipes are cut.

[0004] In order to achieve the above-mentioned purpose of being able to move the cut metal pipe to prepare for lower side cutting when the laser cutting head is cutting other metal pipes, the present invention provides the following technical solutions: a laser cutting machine for separating and processing metal pipe fittings, comprising a workbench, two support bars are fixedly installed on the workbench, support frames a are arranged on the two support bars, a laser cutting head is arranged on the support frame a, support frames b are arranged on the two support bars, a moving device is arranged on the support frame b, a moving block is fixedly installed on the lower side of the moving device, a cross plate is fixedly installed on the upper side of the workbench, a plurality of grooves a are arranged on the cross plate, a square plate is fixedly installed on the side of the two support bars close to each other, and a plurality of fixed Block, several fixed blocks are fixedly connected to two square plates, two circular grooves are provided on the lower side of each fixed block, a lifting rod is movably penetrated through the inner wall of each circular groove, a lifting ring is fixedly sleeved on each lifting rod, a pressure spring is fixedly installed on the lower side of each lifting ring, each pressure spring is movably sleeved on the lifting rod, a fixing ring is fixedly installed on the lower end of each pressure spring, each fixing ring is fixedly connected to each circular groove, a trapezoidal block is arranged above each fixed block, each trapezoidal block is fixedly connected to each lifting rod, a pressure block is arranged under each fixed block, each pressure block is connected to each lifting rod, and a pressure groove is provided on the lower side of each pressure block.

[0005] Preferably, the workbench is provided with a material discharge chute, a baffle is fixed in the material discharge chute, two inclined plates are fixedly installed on the front side of the baffle, and there is a gap between the two inclined plates.

[0006] Preferably, a T-shaped plate is arranged between the two support bars, a long strip is fixedly installed on the front of the T-shaped plate, a horizontal bar is fixedly installed on the front of the T-shaped plate, a plurality of brackets are opened on the upper side of the horizontal bar, and an L-shaped plate is fixedly installed on the upper side of the two support bars.

[0007] Preferably, the two L-shaped plates are provided with fixing grooves, the two fixing grooves are movably connected with screws, the two screws are threaded through the upper side of the long strip, and the upper ends of the two screws are fixedly installed with rotating blocks, and the two rotating blocks are respectively fitted with the upper sides of the two L-shaped plates.

[0008] Preferably, a support plate is fixedly installed on the upper side of the workbench, a groove b is provided on the upper side of the support plate, a rotating rod is provided between the support plate and the cross plate, a rotating motor is fixedly installed on the right side of the workbench, the output shaft of the rotating motor movably passes through the support bar on the right of the two support bars, the output shaft of the rotating motor is fixedly connected to the rotating rod, a number of rotating columns are fixedly sleeved on the rotating rod, and a number of annular wall grooves are opened on each rotating column.

[0009] Preferably, a square groove is provided on the lower side of the moving block, two round rods are fixedly installed in the square groove, and movable columns are movably sleeved on the two round rods.

[0010] Preferably, two short columns are fixedly installed on the upper side of each pressure block, a connecting column is fixedly installed on the upper side of each short column, a connecting groove is opened at the lower end of each lifting rod, each connecting column is movably connected to each connecting groove, each lifting rod is threadedly sleeved with a rotating tube, and each rotating tube is threadedly sleeved on each short column.

[0011] Preferably, each of the pressure grooves has two arc grooves on the inner side wall, an arc strip is fixedly installed in each arc groove, an arc soft strip is fixedly installed on the inner side of each arc strip, a mounting plate a is provided on the upper side of the support plate, each groove b is provided on the mounting plate a, a mounting plate b is provided on the upper side of the cross plate, each groove a is provided on the mounting plate b, the mounting plates a and b are both rotated through the limit rods on the front and rear sides, and a limit strip is fixedly installed on each limit rod.

[0012] Compared with the prior art, the present invention provides a laser cutting machine for separating and processing metal pipes, which has the following beneficial effects: The laser cutting machine for separating and processing metal pipe fittings places the metal pipe to be cut in each groove a, and sets the moving device to move with the laser cutting head. When the laser cutting head moves to cut the metal pipe, the moving device can drive the moving block to move and squeeze one of the trapezoidal blocks, so that the pressure block can be driven by the lifting rod to move downward to squeeze and fix the cut metal pipe. When the metal pipe is cut, the moving block leaves, so that the rebound of the pressure spring can drive the lifting rod to move upward through the lifting ring, thereby driving the pressure block to move upward, so that the user can move the steel pipe backward to prepare for lower side cutting, and thus can move the cut metal pipe to prepare for lower side cutting when the laser cutting head cuts other metal pipes.

[0013] The laser cutting machine for separating and processing metal pipe fittings cuts the metal pipe through the laser cutting head, and the cut metal pipe will fall into a small material trough, and then will be caught by two inclined plates, so that the metal pipe will roll along the two inclined plates through the gap between the two inclined plates for centralized feeding, so that users can conveniently collect the cut metal pipes in a centralized manner.

[0014] The laser cutting machine for separating and processing metal pipes can hold the metal pipes by means of the horizontal bars and the brackets, and can facilitate users to position the metal pipes by blocking the T-shaped plates, and can fix the T-shaped plates by means of the rotating blocks and the screws, so that the length of the cut steel pipes can be limited by setting the T-shaped plates at different positions.

[0015] The laser cutting machine for separating and processing metal pipes can drive the rotating rod to rotate through the rotating motor, thereby driving each rotating column to rotate, so that the metal pipe to be cut can be driven to move backward, so that the metal pipe can be automatically transported backward after the metal pipe cutting is completed.

[0016] The laser cutting machine for separating and processing metal pipes can reduce the friction between the moving block and the trapezoidal block through the movable column, thereby avoiding long-term excessive friction that causes damage to the moving block and the trapezoidal block and seriously affects the service life, thereby improving the practicality of the device.

[0017] The laser cutting machine for separating and processing metal pipe fittings moves the rotating tube by rotating it upward. When the rotating tube is separated from the short column, the pressure block can be moved downward to remove it. This makes it convenient for users to replace the pressure block according to the thickness of the metal pipe, so that the metal pipe can be fixed by a pressure groove of an appropriate size.

[0018] 7. The laser cutting machine for separating and processing metal pipe fittings can rotate each limit bar to make each limit bar easily separated from the support plate and the cross plate, and then the mounting plate a and the mounting plate b can be taken out, so that grooves a and grooves b of different sizes can be replaced by replacing different mounting plates a and mounting plates b. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the three-dimensional structure of the middle workbench; Figure 3 For the present invention Figure 1 Schematic diagram of the three-dimensional structure of the middle fixed block; Figure 4 For the present invention Figure 1 A schematic diagram of the cross-sectional three-dimensional structure of the moving block; Figure 5 For the present invention Figure 1 A schematic diagram of the cross-sectional three-dimensional structure of the middle fixed block; Figure 6 For the present invention Figure 1 Schematic diagram of the three-dimensional structure of the middle T-shaped plate; Figure 7 For the present invention Figure 1 Schematic diagram of the three-dimensional structure of the rotating motor.

[0020] In the figure: 1, workbench; 2, support plate; 3, horizontal plate; 4, fixed block; 5, square plate; 6, moving block; 7, long strip; 8, support bar; 9, L-shaped plate; 10, rotating block; 11, fixed groove; 12, T-shaped plate; 13, laser cutting head; 14, moving device; 15, support frame a; 16, support frame b; 17, rotating motor; 18, rotating rod; 19, rotating column; 20, annular wall groove; 21, screw; 22, horizontal bar; 23, bracket; 24, trapezoidal block; 25, pressure block; 26 , pressure groove; 27, square groove; 28, movable column; 29, round rod; 30, lifting rod; 31, lifting ring; 32, feeding chute; 33, pressure spring; 34, fixing ring; 35, connecting groove; 36, short column; 37, connecting column; 38, arc groove; 39, arc soft strip; 40, arc strip; 41, rotating tube; 42, round groove; 43, limit rod; 44, limit strip; 45, mounting plate a; 46, groove b; 47, mounting plate b; 48, groove a; 49, baffle; 50, inclined plate. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings, wherein the same components are represented by the same figure numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower", "bottom surface" and "top surface" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] 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.

[0023] See also Figure 1-Figure 7The present invention provides a technical solution: a laser cutting machine for separating and processing metal pipes, comprising a workbench 1, two support bars 8 are fixedly installed on the workbench 1, a support frame a15 is arranged on the two support bars 8, a laser cutting head 13 is arranged on the support frame a15, a support frame b16 is arranged on the two support bars 8, a moving device 14 is arranged on the support frame b16, a moving block 6 is fixedly installed on the lower side of the moving device 14, a horizontal plate 3 is fixedly installed on the upper side of the workbench 1, a plurality of grooves a48 are arranged on the horizontal plate 3, a square plate 5 is fixedly installed on the side where the two support bars 8 are close to each other, a plurality of fixed blocks 4 are arranged between the two square plates 5, the plurality of fixed blocks 4 are fixedly connected to the two square plates 5, and two circular holes are provided on the lower side of each fixed block 4 Groove 42, each circular groove 42 has a lifting rod 30 movably penetrated on the inner wall, each lifting rod 30 is fixedly sleeved with a lifting ring 31, each lifting ring 31 is fixedly installed with a pressure spring 33 on the lower side, each pressure spring 33 is movably sleeved on the lifting rod 30, a fixing ring 34 is fixedly installed on the lower end of each pressure spring 33, each fixing ring 34 is fixedly connected to each circular groove 42, each fixed block 4 is provided with a trapezoidal block 24 above, each trapezoidal block 24 is fixedly connected to each lifting rod 30, each fixed block 4 is provided with a pressure block 25 below, each pressure block 25 is connected to each lifting rod 30, and a pressure groove 26 is opened on the lower side of each pressure block 25. By placing the metal pipe to be cut on each In the groove a48, the moving device 14 is set to move with the laser cutting head 13. When the laser cutting head 13 moves to cut the metal pipe, the moving device 14 can drive the moving block 6 to move and squeeze one of the trapezoidal blocks 24. In this way, the pressure block 25 can be driven by the lifting rod 30 to move downward to squeeze and fix the cut metal pipe. When the metal pipe is cut, the moving block 6 leaves, so that the rebound of the pressure spring 33 will drive the lifting rod 30 to move upward through the lifting ring 31, thereby driving the pressure block 25 to move upward, so that the user can move the steel pipe backward to prepare for the lower side cutting, so that the cut metal pipe can be moved to prepare for the lower side cutting when the laser cutting head 13 cuts other metal pipes. The workbench 1 is provided with A material discharge trough 32 is fixed with a baffle 49 in the material discharge trough 32, and two inclined plates 50 are fixedly installed on the front of the baffle 49. There is a gap between the two inclined plates 50. After the metal tube is cut by the laser cutting head 13, the cut metal tube will fall into the small material trough 32, and then will be caught by the two inclined plates 50, so that the metal tube will roll along the two inclined plates 50 through the gap between the two inclined plates 50 for centralized discharge, so that users can conveniently collect the cut metal tubes in a centralized manner. A T-shaped plate 12 is arranged between the two support bars 8, and a long strip 7 is fixedly installed on the front of the T-shaped plate 12. A horizontal bar 22 is fixedly installed on the front of the T-shaped plate 12, and a plurality of brackets 23 are provided on the upper side of the horizontal bar 22. L-shaped plates 9 are fixedly installed on the upper sides of the two support bars 8.The two L-shaped plates 9 are each provided with a fixing groove 11, and the two fixing grooves 11 are each movably connected with a screw rod 21, and the two screw rods 21 are threadedly penetrated through the upper side of the long strip 7, and the upper ends of the two screw rods 21 are fixedly installed with a rotating block 10, and the two rotating blocks 10 are respectively fitted with the upper sides of the two L-shaped plates 9, and the metal pipe can be dragged by the cross bar 22 and the bracket 23, and the metal pipe can be conveniently positioned by the user through the blocking of the T-shaped plate 12, and the T-shaped plate 12 can be fixed by the rotating block 10 and the screw rod 21, so that the length of the cut steel pipe can be limited by setting the T-shaped plate 12 at different positions, and a support plate 2 is fixedly installed on the upper side of the workbench 1, and a groove b46 is provided on the upper side of the support plate 2, and a rotating rod 18 is provided between the support plate 2 and the cross plate 3, and the workbench 1 is provided with a plurality of screw rods 18 ... A rotating motor 17 is fixedly installed on the right side of the workbench 1, and the output shaft of the rotating motor 17 movably passes through the support bar 8 on the right of the two support bars 8. The output shaft of the rotating motor 17 is fixedly connected to a rotating rod 18, and a plurality of rotating columns 19 are fixedly sleeved on the rotating rod 18. Each rotating column 19 is provided with a plurality of annular wall grooves 20. The rotating motor 17 can drive the rotating rod 18 to rotate, thereby driving each rotating column 19 to rotate, so that the metal pipe to be cut can be driven to move backward, so that the metal pipe can be automatically transported backward after the metal pipe cutting is completed. A square groove 27 is provided on the lower side of the moving block 6, and two round rods 29 are fixedly installed in the square groove 27. The two round rods 29 are movably sleeved with movable columns 28. The moving column 28 can reduce the friction between the moving block 6 and the trapezoidal block 24, so as to avoid long-term excessive friction causing damage to the moving block 6 and the trapezoidal block 24, which seriously affects the service life. In this way, the practicality of the device can be improved. Two short columns 36 are fixedly installed on the upper side of each pressure block 25, and a connecting column 37 is fixedly installed on the upper side of each short column 36. A connecting groove 35 is opened at the lower end of each lifting rod 30, and each connecting column 37 is movably connected to each connecting groove 35. A rotating tube 41 is threadedly sleeved on each lifting rod 30, and each rotating tube 41 is threadedly sleeved on each short column 36. The rotating tube 41 is moved by rotating upward. When the rotating tube 41 is separated from the short column 36, the pressure block 25 can be moved downward to be removed. In this way, it is convenient for users to replace the pressure block 25 according to the thickness of the metal pipe, so that the metal pipe can be fixed by using the pressure groove 26 of the appropriate size. Each pressure groove 26 has two arc grooves 38 on the inner wall, and an arc strip 40 is fixedly installed in each arc groove 38. An arc soft strip 39 is fixedly installed on the inner side of each arc strip 40. A mounting plate a45 is arranged on the upper side of the support plate 2, and each groove b46 is arranged on the mounting plate a45. A mounting plate b47 is arranged on the upper side of the cross plate 3, and each groove a48 is arranged on the mounting plate b47. The mounting plates a45 and b47 are both rotated to penetrate the limit rod 43 on the front and rear sides, and each limit rod 43 is fixedly installed with a limit strip 44. By rotating each limit strip 44,After each limiting strip 44 is separated from the support plate 2 and the horizontal plate 3, the mounting plate a45 and the mounting plate b47 can be taken out, so that the grooves a48 and the grooves b46 of different sizes can be replaced by replacing different mounting plates a45 and b47.

[0024] When in use, the first step is: by placing the metal tube to be cut in each groove a48, the moving device 14 is set to move with the laser cutting head 13. When the laser cutting head 13 moves to cut the metal tube, the moving device 14 can drive the moving block 6 to move and squeeze one of the trapezoidal blocks 24. In this way, the pressure block 25 can be driven by the lifting rod 30 to move downward to squeeze and fix the cut metal tube. When the metal tube is cut, the moving block 6 leaves, so that the rebound of the pressure spring 33 will drive the lifting rod 30 to move upward through the lifting ring 31, thereby driving the pressure block 25 to move upward, so that the user can move the steel tube backward to prepare for lower side cutting, so that the cut metal tube can be moved to prepare for lower side cutting when the laser cutting head 13 cuts other metal tubes.

[0025] Step 2: After the metal tube is cut by the laser cutting head 13, the cut metal tube will fall into the small material trough 32 and then be caught by the two inclined plates 50. In this way, the metal tube will roll along the two inclined plates 50 through the gap between the two inclined plates 50 for centralized discharge, so that the user can conveniently collect the cut metal tubes in a centralized manner.

[0026] Step 3: The metal pipe can be dragged by the horizontal bar 22 and the bracket 23, and the T-shaped plate 12 can be used to block the metal pipe, and the T-shaped plate 12 can be fixed by the rotating block 10 and the screw 21, so that the length of the cut steel pipe can be limited by setting the T-shaped plate 12 at different positions.

[0027] Step 4: The rotating motor 17 can drive the rotating rod 18 to rotate, thereby driving each rotating column 19 to rotate, so that the metal pipe to be cut can be driven to move backward, so that the metal pipe can be automatically transported backward after the metal pipe is cut.

[0028] Step 5: The friction between the moving block 6 and the trapezoidal block 24 can be reduced by the movable column 28, thereby avoiding long-term excessive friction that causes damage to the moving block 6 and the trapezoidal block 24 and seriously affects the service life, thereby improving the practicality of the device.

[0029] Step 6: By rotating the rotating tube 41 upward, when the rotating tube 41 is separated from the short column 36, the pressure block 25 can be moved downward to remove it. This makes it convenient for the user to replace the pressure block 25 according to the thickness of the metal tube, so that the metal tube can be fixed by using the pressure groove 26 of appropriate size.

[0030] Step 7: By rotating each limit bar 44 so that each limit bar 44 can be easily separated from the support plate 2 and the cross plate 3, the mounting plate a45 and the mounting plate b47 can be taken out, so that the grooves a48 and the grooves b46 of different sizes can be replaced by replacing different mounting plates a45 and b47.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser cutting machine for separating and processing metal pipes, comprising a workbench (1), two support bars (8) being fixedly mounted on the workbench (1), a support frame a (15) being arranged on the two support bars (8), a laser cutting head (13) being arranged on the support frame a (15), a support frame b (16) being arranged on the two support bars (8), and a moving device (14) being arranged on the support frame b (16), characterized in that: A moving block (6) is fixedly mounted on the lower side of the moving device (14); a transverse plate (3) is fixedly mounted on the upper side of the workbench (1); a plurality of grooves a (48) are arranged on the transverse plate (3); a square plate (5) is fixedly mounted on the side of the two support bars (8) close to each other; a plurality of fixed blocks (4) are arranged between the two square plates (5); the plurality of fixed blocks (4) and the two square plates (5) are fixedly connected to each other; two circular grooves (42) are arranged on the lower side of each fixed block (4); a lifting rod (30) is movably penetrated through the inner wall of each circular groove (42); a lifting ring (31) is fixedly sleeved on each lifting rod (30); each lifting ring (31) A pressure spring (33) is fixedly installed on the lower side of each of the pressure springs (31), each of which is movably sleeved on the lifting rod (30), a fixing ring (34) is fixedly installed on the lower end of each of the pressure springs (33), each of which is fixedly connected to each of the circular grooves (42), a trapezoidal block (24) is arranged above each of the fixing blocks (4), each of which is fixedly connected to each of the lifting rods (30), a pressure block (25) is arranged below each of the fixing blocks (4), each of which is connected to each of the lifting rods (30), and a pressure groove (26) is provided on the lower side of each of the pressure blocks (25).

2. The laser cutting machine for separating and processing metal pipes according to claim 1, characterized in that: The workbench (1) is provided with a material discharge chute (32), a baffle (49) is fixed in the material discharge chute (32), and two inclined plates (50) are fixedly mounted on the front of the baffle (49), with a gap between the two inclined plates (50).

3. The laser cutting machine for separating and processing metal pipes according to claim 1, characterized in that: A T-shaped plate (12) is arranged between the two support bars (8), a long strip (7) is fixedly mounted on the front of the T-shaped plate (12), a horizontal strip (22) is fixedly mounted on the front of the T-shaped plate (12), a plurality of brackets (23) are provided on the upper side of the horizontal strip (22), and an L-shaped plate (9) is fixedly mounted on the upper sides of the two support bars (8).

4. The laser cutting machine for separating and processing metal pipes according to claim 3, characterized in that: The two L-shaped plates (9) are each provided with a fixing groove (11), and screw rods (21) are movably connected in the two fixing grooves (11). The two screw rods (21) are threadedly passed through the upper side of the long strip (7), and rotating blocks (10) are fixedly mounted on the upper ends of the two screw rods (21). The two rotating blocks (10) are respectively fitted with the upper sides of the two L-shaped plates (9).

5. The laser cutting machine for separating and processing metal pipes according to claim 1, characterized in that: A support plate (2) is fixedly mounted on the upper side of the workbench (1), a groove b (46) is provided on the upper side of the support plate (2), a rotating rod (18) is provided between the support plate (2) and the cross plate (3), a rotating motor (17) is fixedly mounted on the right side of the workbench (1), an output shaft of the rotating motor (17) movably passes through the right support bar (8) of the two support bars (8), the output shaft of the rotating motor (17) is fixedly connected to the rotating rod (18), a plurality of rotating columns (19) are fixedly sleeved on the rotating rod (18), and each rotating column (19) is provided with a plurality of annular wall grooves (20).

6. The laser cutting machine for separating and processing metal pipes according to claim 1, characterized in that: A square groove (27) is provided on the lower side of the movable block (6), and two round rods (29) are fixedly installed in the square groove (27). A movable column (28) is movably sleeved on the two round rods (29).

7. The laser cutting machine for separating and processing metal pipes according to claim 1, characterized in that: Two short columns (36) are fixedly mounted on the upper side of each pressure block (25), a connecting column (37) is fixedly mounted on the upper side of each short column (36), a connecting groove (35) is provided at the lower end of each lifting rod (30), each connecting column (37) is movably connected to each connecting groove (35), each lifting rod (30) is threadedly sleeved with a rotating tube (41), and each rotating tube (41) is threadedly sleeved on each short column (36).

8. The laser cutting machine for separating and processing metal pipes according to claim 5, characterized in that: Each of the pressure grooves (26) has two arc grooves (38) formed on the inner side wall, each arc groove (38) has an arc strip (40) fixedly mounted therein, each arc strip (40) has an arc soft strip (39) fixedly mounted therein, a mounting plate a (45) is provided on the upper side of the support plate (2), each groove b (46) is formed on the mounting plate a (45), a mounting plate b (47) is provided on the upper side of the cross plate (3), each groove a (48) is formed on the mounting plate b (47), the mounting plates a (45) and the mounting plates b (47) are both rotatably connected to limit rods (43) at the front and rear sides, and each limit rod (43) has a limit strip (44) fixedly mounted thereon.

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