A material supporting device for laser tube cutting machine

Abstract

The present invention provides a supporting device for a laser tube cutting machine, which relates to the technical field of laser tube cutting, and comprises a laser tube cutting machine and a supporting frame, wherein at least two supporting frames are fixedly installed above the supporting frame, a main frame is vertically slidably installed inside each of the supporting frames, a cross frame is fixedly installed on the top of each of the main frames, and bar teeth are fixedly installed on the left and right sides of each of the cross frames, and the tube is clamped at multiple angles by using a first clamping frame, a circular frame and an arc-shaped clamping plate, thereby achieving an all-round fixing effect on the tube, thereby effectively fixing tubes of different specifications, and the fixing method of the supporting frame can play a good follow-up role, and the first clamping frame, the circular frame and the arc-shaped clamping plate can be fixed at multiple angles, so when the steering clamping mechanism in the laser tube cutting machine changes the angle of the tube, the supporting frame can also firmly fix the tube.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser cutting tubes, and more specifically, particularly relates to a material supporting device for a laser tube cutting machine. Background Art

[0002] In the field of tube processing, laser tube cutting machines are widely used due to their high precision and high efficiency cutting performance. The existing laser tube cutting machine support devices have many shortcomings, as follows:

[0003] 1. Traditional support devices can usually only fix the pipe from a single angle or a limited number of angles, and it is difficult to achieve all-round fixation of pipes of different specifications. This leads to poor fixation effect during pipe processing, especially for pipes with irregular shapes and large diameter differences, which affects cutting accuracy and quality;

[0004] 2. When the steering clamping mechanism in the laser tube cutting machine changes the angle of the tube, the supporting device cannot make corresponding adjustments quickly and effectively, and cannot always firmly fix the tube, thus affecting the stability and continuity of the processing;

[0005] 3. The existing support device has a low degree of automation and often requires a lot of manual intervention and operation, which not only increases the difficulty and labor intensity of the work, but also makes it difficult to achieve simultaneous collaborative work of multiple support racks, affecting production efficiency;

[0006] 4. When dealing with pipes of different sizes and shapes, the existing support device lacks flexibility and adaptability. For wider or higher pipes, as well as special-shaped pipes, the existing fixing method is difficult to meet the requirements and cannot provide stable and reliable clamping, which limits the processing range and capacity of the laser pipe cutting machine.

[0007] Therefore, the existing structure and defects are studied and improved, and a laser tube cutting machine supporting device is provided. Summary of the invention

[0008] In order to solve the above technical problems, the present invention provides a material supporting device for a laser tube cutting machine to solve the above problems.

[0009] A laser tube cutting machine supporting device comprises a laser tube cutting machine and a supporting frame, wherein at least two supporting frames are fixedly installed above the supporting frame, a main frame is vertically slidably installed inside each of the supporting frames, a cross frame is fixedly installed on the top of each of the main frames, a bar gear is fixedly installed on the left and right sides of each of the cross frames, a first rotating shaft is rotatably installed above the left and right sides of each of the supporting frames, a gear is fixedly installed on the surface of each of the first rotating shafts, and each of the gears is meshed with the bar gear, and the outer ring of each of the first rotating shafts located on both sides of the gear is fixedly sleeved with two side support frames, and a first clamping frame is fixedly installed between the ends of each two side support frames, and two circular frames are arranged on the side edges of each of the first clamping frames, and side sliding frames are movably installed on the outer walls of the two circular frames, and a first sliding frame is movably installed between each of the side sliding frames and the first clamping frame, and an arc clamping plate is rotatably installed inside each of the circular frames.

[0010] Preferably, each of the main brackets is fixedly installed with side plates on the left and right sides of each of the side plates, and each of the side plates is fixedly installed with a first spring between the bottom of the inner side wall of the supporting frame, each of the cross brackets is provided with a groove on the left and right sides of each of the cross brackets, and the ends of each of the two cross brackets protrude to both sides, and each of the front and rear sides of each of the supporting frames are penetrated by two side slide rails, and a protruding section at the end of each of the two cross brackets is located in the side slide rails, and each of the tops of the two sides of each of the supporting frames are fixedly installed with an L-shaped baffle, and each of the L-shaped baffles are used to prevent the side support frames from rotating in the opposite direction, and the back of each of the first clamping frames is provided with a first slide groove, and each of the first sliding frames is vertically slidably installed in the first slide groove, and an upper top plate is fixedly installed on the top of each of the first clamping frames, and a second sliding frame is fixedly installed on the back of each of the first sliding frames, and a second spring is fixedly installed between the top of each of the second sliding frames and the bottom of the upper top plate.

[0011] Preferably, each of the side sliding frames is provided with a second slide groove in the inner wall, each of the second sliding frames is horizontally slidably installed in the second slide groove, a third spring is fixedly installed between the back side of each second sliding frame and the inner wall of the second slide groove, the first speed limit plate is fixedly installed on the upper and lower inner walls of each second slide groove, the second speed limit plate is fixedly installed on the upper and lower side walls of each second sliding frame, each of the second speed limit plates is staggered with the first speed limit plate, the surface of each of the first speed limit plate and the second speed limit plate is composed of a plurality of arc-shaped protrusions, the bottom of each of the supporting racks is penetrated by a bottom slide groove, and the lower end of each of the main brackets is slidably inserted in the bottom slide groove.

[0012] Preferably, a second rotating shaft is fixedly installed between the two circular frames on the same side, and the second rotating shaft is close to the upper side of the circular frame, a torsion spring is arranged between each of the second rotating shaft and the two circular frames, each of the arc-shaped clamping plates is located between the two circular frames, and each arc-shaped clamping plate is rotatably mounted outside the second rotating shaft, and the arc-shaped clamping plate is subjected to the elastic force of the torsion spring, a baffle rod is fixedly installed between each two circular frames located below the second rotating shaft, a laser cutting assembly is arranged inside the laser tube cutting machine, a pipe is arranged above the support frame, the pipe is placed on each cross bracket, and the pipe is clamped by the first clamping frame, the circular frame and the arc-shaped clamping plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the present invention, the first clamping frame, the circular frame and the arc-shaped clamping plate are all rotated downward to the top of the tube, the first clamping frame clamps the top of the tube, and the circular frame clamps the corners of the tube, and the arc-shaped clamping plate clamps the sides of the tube. At this time, the end of the tube can be cut by the laser cutting assembly. By adopting the first clamping frame, the circular frame and the arc-shaped clamping plate to clamp the tube at multiple angles, the tube can be fixed in all directions, so that tubes of different specifications can be effectively fixed, and the fixing method of the support frame can play a good follow-up role. The first clamping frame, the circular frame and the arc-shaped clamping plate can be fixed at multiple angles. Therefore, when the steering clamping mechanism in the laser tube cutting machine changes the angle of the tube, the support frame can also firmly fix the tube.

[0015] In the present invention, the two first springs can keep the support frame as a whole in the initial state when the cross bracket is not under force. However, when a heavy object is placed on the cross bracket, the first spring will be directly compressed to the bottom. Generally, the weight of the pipe is heavy. Therefore, when the pipe is placed on the cross bracket, the side support frames on both sides of the support frame will rotate downward to the bottom until the first clamping frame tightly clamps the pipe. After the pipe leaves the cross bracket, the first spring can reset the support frame through elastic force. The whole has a certain degree of automation, does not require manual intervention, reduces the difficulty of operation, and thus a plurality of support frames can be used simultaneously.

[0016] In the present invention, the cross bracket will drive the bar teeth on both sides to move downward, and at the same time, the protruding sections at both ends of the cross bracket will slide in the side slide rails. Each bar tooth sliding downward will drive the gear to rotate, and each gear rotation will drive the two side support frames to rotate through the first rotating shaft. The rotation of the two side support frames will drive the first clamping frame to rotate downward. By using the gravity of the pipe to drive the operation of the entire equipment, the follow-up ability of the device can be improved, and the automation of the device can be improved.

[0017] In the present invention, when the height of the pipe is relatively high, after the circular frame contacts the pipe, it will slide to the side due to the reaction force. When the first clamping frame clamps the top of the pipe and stops, the circular frame and the arc-shaped clamping plate will clamp the side wall of the pipe. By designing the first clamping frame, the circular frame and the arc-shaped clamping plate to be able to follow at multiple angles, it is possible to clamp pipes with a larger width and a higher height, thereby greatly improving the diversity of the clamping of the device, providing better solutions for different pipes, and further improving the follow-up ability of the device when processing pipes of different specifications.

[0018] In the present invention, the circular frame is forced to slide to one side, driving the side sliding frame to slide to one side, and the side sliding frame slides outside the second sliding frame. At the same time, the first speed limit plate on the inner wall of the second slide groove and the second speed limit plate on the outer wall of the second sliding frame continue to move alternately. The separation of the side sliding frame and the second sliding frame will drive the third spring to stretch. The misalignment of the first speed limit plate and the second speed limit plate can help the circular frame to move more smoothly and will not cause excessive displacement at one time due to external force. By arranging multiple displacement mechanisms between the circular frame and the first clamping frame, the overall clamping capacity of the side support frame can be improved, and more pipes of different specifications can be handled. Even if the pipe is in a special-shaped state, the side support frame can still clamp and fix it through the first clamping frame, the circular frame and the arc-shaped clamping plate.

[0019] In the present invention, when the arc-shaped clamping plate clamps and fixes the side wall of the pipe, the reaction force on the arc-shaped clamping plate will counterbalance the torsion spring, and the arc-shaped clamping plate will rotate outside the second rotating shaft. The arc-shaped clamping plate is arranged in a "," shape, which can better clamp pipes of different specifications, thereby improving the side fixing ability and preventing the side deviation of the pipe when the support frame moves. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the laser tube cutting machine of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the bracket of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the cross support of the present invention;

[0023] Figure 4 It is a schematic diagram of the main support structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the side support structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the first clamping frame of the present invention;

[0026] Figure 7 It is a schematic diagram of the circular frame structure of the present invention;

[0027] Figure 8 It is a schematic diagram of the side sliding frame structure of the present invention;

[0028] Fig. 9 The present invention Figure 8 A schematic diagram of the enlarged structure at point A;

[0029] Fig.10 It is a schematic diagram of the structure of the arc-shaped clamping plate of the present invention.

[0030] In the figure, the correspondence between the component names and the figure numbers is: 1. Laser tube cutting machine; 11. Laser cutting assembly; 12. Support frame; 13. Tube; 14. Support frame; 15. Main support; 16. Side plate; 17. First spring; 18. Cross support; 19. Bar teeth; 2. Side slide rail; 21. First rotating shaft; 22. Gear; 23. Side support frame; 24. First clamping frame; 25. First slide groove; 26. First sliding frame; 27. Second sliding frame; 28. Second spring; 29. ​​Third spring; 3. Circular frame; 31. Side sliding frame; 32. Second slide groove; 33. First speed limit plate; 34. Second speed limit plate; 35. L-shaped baffle plate; 36. Second rotating shaft; 37. Baffle rod; 38. Arc clamping plate; 39. Groove; 4. Upper top plate; 41. Bottom slide groove. DETAILED DESCRIPTION

[0031] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0032] See also Figure 1-Figure 10The present invention provides a material support device for a laser tube cutting machine, comprising a laser tube cutting machine 1 and a support frame 12, at least two material support frames 14 are fixedly installed above the support frame 12, a main support frame 15 is vertically slidably installed inside each material support frame 14, a cross support frame 18 is fixedly installed on the top of each main support frame 15, and bar teeth 19 are fixedly installed on the left and right sides of each cross support frame 18, a first rotating shaft 21 is rotatably installed above the left and right sides of each material support frame 14, a gear 22 is fixedly installed on the surface of each first rotating shaft 21, and each gear 22 is meshed with the bar teeth 19, and the first clamping frame 24, the circular frame 3 and the arc-shaped clamping plate 38 are used to clamp the tube 13 at multiple angles, so that the tube 13 can be fixed in all directions, so that tubes 13 of different specifications can be effectively fixed. 3, and the fixing method of the support frame 14 can play a good follow-up role. The first clamping frame 24, the circular frame 3 and the arc-shaped clamping plate 38 can be fixed at multiple angles. Therefore, when the steering clamping mechanism in the laser tube cutting machine 1 changes the angle of the tube 13, the support frame 14 can also firmly fix the tube 13. The outer ring of each first rotating shaft 21 on both sides of the gear 22 is fixedly sleeved with two side support frames 23, and the first clamping frame 24 is fixedly installed between the ends of each two side support frames 23. Two circular frames 3 are arranged on the side of each first clamping frame 24, and the outer side walls of the two circular frames 3 are movably installed with side sliding frames 31. A first sliding frame 26 is movably installed between each side sliding frame 31 and the first clamping frame 24, and an arc-shaped clamping plate 38 is rotatably installed inside each circular frame 3.

[0033] Side plates 16 are fixedly installed on the left and right sides of each main bracket 15, and a first spring 17 is fixedly installed between each side plate 16 and the bottom of the inner wall of the bracket 14. Grooves 39 are provided on the left and right sides of each cross bracket 18, and the ends of both sides of each cross bracket 18 protrude to both sides. Two side slide rails 2 are penetrated on the front and back sides of each bracket 14, and a protruding section at the end of each cross bracket 18 is located in the side slide rail 2. L-shaped baffles 35 are fixedly installed on the top of both sides of each bracket 14, and each L-shaped baffle 35 is used to prevent the side support frame 23 from rotating in the opposite direction. A first slide groove 25 is provided on the back of each first clamping frame 24. The side plate 16 moves downward to drive the first spring 17 to move downward, and at the same time When the main bracket 15 slides in the bottom slide groove 41, the two first springs 17 can keep the supporting frame 14 in the initial state as a whole when the cross bracket 18 is not under force. However, when a heavy object is placed on the cross bracket 18, the first spring 17 will be directly compressed to the bottom, and the weight of the general pipe 13 is heavier. Therefore, when the pipe 13 is placed on the cross bracket 18, the side support frames 23 on both sides of the supporting frame 14 will rotate downward to the bottom, and each first sliding frame 26 is vertically slidably installed in the first slide groove 25. The top of each first clamping frame 24 is fixedly installed with an upper top plate 4, and the back of each first sliding frame 26 is fixedly installed with a second sliding frame 27. A second spring 28 is fixedly installed between the top of each second sliding frame 27 and the bottom of the upper top plate 4.

[0034] The inner wall of each side sliding frame 31 is provided with a second sliding groove 32, and each second sliding frame 27 is horizontally slidably installed in the second sliding groove 32. A third spring 29 is fixedly installed between the back of each second sliding frame 27 and the inner wall of the second sliding groove 32, and a first speed limiting plate 33 is fixedly installed on the upper and lower inner walls of each second sliding groove 32. A second speed limiting plate 34 is fixedly installed on the upper and lower side walls of each second sliding frame 27. At this time, the arc clamping plate 38 will slide upward under the reaction force of the downward pressure, and the arc clamping plate 38 slides upward to drive the circular frame 3 to slide upward, and the first clamping frame 24 stops when it contacts the top of the pipe 13. When the first clamping frame 24 stops clamping the top of the pipe 13, each second speed limiting plate 34 is staggered with the first speed limiting plate 33, and the surface of each first speed limiting plate 33 and the second speed limiting plate 34 is composed of a plurality of arc-shaped protrusions, and a bottom slide groove 41 is provided through the bottom of each supporting frame 14, and the lower end of each main bracket 15 is slidably inserted into the bottom slide groove 41.

[0035] A second rotating shaft 36 is fixedly installed between the two circular frames 3 on the same side, and the second rotating shaft 36 is close to the upper side of the circular frame 3. A torsion spring is arranged between each second rotating shaft 36 and the two circular frames 3. Each arc-shaped clamping plate 38 is located between the two circular frames 3, and each arc-shaped clamping plate 38 is rotatably sleeved outside the second rotating shaft 36. The arc-shaped clamping plate 38 is subjected to the elastic force of the torsion spring. The first sliding frame 26 slides in the first sliding groove 25 provided in the first clamping frame 24. At the same time, the upward movement of the second sliding frame 27 will drive the second spring 28 to be compressed. When the circular frame 3 drives the arc-shaped clamping plate 38 to slide to the side, the circular frame 3 is forced to slide to one side and drive The side sliding frame 31 slides to one side, and the side sliding frame 31 slides outside the second sliding frame 27. At the same time, the first speed limit plate 33 on the inner wall of the second sliding groove 32 and the second speed limit plate 34 on the outer wall of the second sliding frame 27 will continuously move alternately. The separation of the side sliding frame 31 and the second sliding frame 27 will drive the third spring 29 to stretch. A baffle 37 is fixedly installed between each two circular frames 3 located below the second rotating shaft 36. A laser cutting assembly 11 is arranged inside the laser pipe cutting machine 1, and a pipe 13 is arranged above the support frame 12. The pipe 13 is placed on each cross bracket 18, and the pipe 13 is clamped by the first clamping frame 24, the circular frame 3 and the arc-shaped clamping plate 38.

[0036] Working principle:

[0037] In the first step, when the tube 13 is laser cut, the tube 13 is transported to the support frame 12 through the conveying mechanism of the tube machine. In the initial state, the side support frames 23 above each support frame 14 are in a vertical state. When the tube 13 moves to above the cross support 18, the cross support 18 is forced to move downward, wherein the grooves 39 provided on both sides of the cross support 18 can provide a position for the rotation of the arc clamping plate 38. The downward movement of the cross support 18 drives the bar teeth 19 on both sides to move downward, and the downward movement of the two bar teeth 19 will drive the gear 22 to rotate, and each rotation of the gear 22 will drive the first clamping frame 24 to rotate downward through the side support frame 23. At this time, the first clamping frame 24, the circular frame 3 and the arc clamping plate 38 all rotate downward, and the first clamping frame 24, the circular frame 3 and the arc clamping plate 38 all rotate downward to the top of the tube 13, and the first clamping frame 24 is on the tube. The top of the tube 13 is clamped, and the circular frame 3 clamps the corners of the tube 13, and the arc-shaped clamping plate 38 clamps the side of the tube 13 (the clamping position of the first clamping frame 24, the circular frame 3 and the arc-shaped clamping plate 38 is changed by the specification of the tube 13). At this time, the end of the tube 13 can be cut by the laser cutting assembly 11. By adopting the first clamping frame 24, the circular frame 3 and the arc-shaped clamping plate 38 to clamp the tube 13 at multiple angles, the tube 13 can be fixed in all directions, so that the tubes 13 of different specifications can be effectively fixed, and the fixing method of the support frame 14 can play a good follow-up role. The first clamping frame 24, the circular frame 3 and the arc-shaped clamping plate 38 can be fixed at multiple angles. Therefore, when the steering clamping mechanism in the laser tube cutting machine 1 changes the angle of the tube 13, the support frame 14 can also firmly fix the tube 13.

[0038] In the second step, when the pipe 13 moves to the top of the cross bracket 18, the cross bracket 18 is forced to drive the main bracket 15 to move downward, and the main bracket 15 moves downward to drive the side plates 16 on both sides to move downward, and the side plates 16 move downward to drive the first spring 17 to move downward, and at the same time, the main bracket 15 slides in the bottom slide groove 41, and the two first springs 17 can keep the bracket 14 in the initial state as a whole when the cross bracket 18 is not under force, but when a heavy object is placed on the cross bracket 18, the first spring 17 will be directly compressed to the bottom, and the weight of the pipe 13 is generally heavy, so when the pipe 13 is placed on the cross bracket 18, the side brackets 23 on both sides of the bracket 14 will rotate downward to the bottom until the first clamping frame 24 tightly clamps the pipe 13, and after the pipe 13 leaves the cross bracket 18, the first spring 17 can reset the bracket 14 through elastic force, and the whole has a certain degree of automation, without manual intervention, reducing the difficulty of operation, so that a plurality of brackets 14 can be used at the same time;

[0039] When the tube 13 drives the cross bracket 18 to move downward, the cross bracket 18 will drive the bar teeth 19 on both sides to move downward. At the same time, the protruding sections at both ends of the cross bracket 18 will slide in the side slide rail 2. Each bar tooth 19 sliding downward will drive the gear 22 to rotate. The rotation of each gear 22 will drive the two side brackets 23 to rotate through the first rotating shaft 21. The rotation of the two side brackets 23 will drive the first clamping frame 24 to rotate downward. By using the gravity of the tube 13 to drive the operation of the entire equipment, the follow-up ability of the device can be improved and the automation of the device can be improved.

[0040] In the third step, when the width of the pipe 13 is narrow, the side support frame 23 will drive the first clamping frame 24, the circular frame 3 and the arc-shaped clamping plate 38 to rotate downward to clamp the top, corners and side walls of the pipe 13; when the width of the pipe 13 is wide, the side support frame 23 will drive the arc-shaped clamping plate 38 to contact the top of the pipe 13 first when it rotates downward. At this time, the arc-shaped clamping plate 38 will slide upward under the reaction force of the downward pressure. The arc-shaped clamping plate 38 slides upward and drives the circular frame 3 to slide upward. When the first clamping frame 24 contacts the top of the pipe 13, it stops. At this time, the circular frame 3 is also above the pipe 13, and the arc-shaped clamping plate 38 is located on the side of the pipe 13 and close to the circular frame 3. Near the corner; when the height of the pipe 13 is relatively high, after the circular frame 3 contacts the pipe 13, it will slide to the side due to the reaction force, and when the first clamping frame 24 clamps the top of the pipe 13 and stops, the circular frame 3 and the arc-shaped clamping plate 38 will clamp the side wall of the pipe 13. By designing the first clamping frame 24, the circular frame 3 and the arc-shaped clamping plate 38 to be able to follow at multiple angles, it is possible to clamp pipes 13 with a larger width, and it is also possible to clamp pipes 13 with a higher height, which greatly improves the diversity of the device clamping, provides better solutions for different pipes 13, and further improves the follow-up ability of the device when processing pipes 13 of different specifications;

[0041] When the circular frame 3 and the arc-shaped clamping plate 38 move upward, the two circular frames 3 will drive the two second sliding frames 27 and the first sliding frame 26 to slide upward through the two side sliding frames 31, and the first sliding frame 26 will slide in the first sliding groove 25 opened in the first clamping frame 24, and at the same time, the upward movement of the second sliding frame 27 will drive the second spring 28 to be compressed; when the circular frame 3 drives the arc-shaped clamping plate 38 to slide sideways, the circular frame 3 is forced to slide to one side and drive the side sliding frame 31 to slide to one side, and the side sliding frame 31 slides outside the second sliding frame 27, and at the same time, the first speed limit plate 33 on the inner wall of the second sliding groove 32 will be on the outer wall of the second sliding frame 27 The second speed limiting plate 34 continuously moves in an interlaced manner, and the separation of the side sliding frame 31 and the second sliding frame 27 will drive the third spring 29 to stretch. The misalignment of the first speed limiting plate 33 and the second speed limiting plate 34 can help the circular frame 3 to move more smoothly, and will not cause excessive displacement at one time due to external force. By arranging multiple displacement mechanisms between the circular frame 3 and the first clamping frame 24, the overall clamping capacity of the side support frame 23 can be improved, and more pipes 13 of different specifications can be handled. Even if the pipe 13 is in a special-shaped state, the side support frame 23 can still be clamped and fixed by the first clamping frame 24, the circular frame 3 and the arc-shaped clamping plate 38;

[0042] When the arc-shaped clamping plate 38 clamps and fixes the side wall of the pipe 13, the reaction force on the arc-shaped clamping plate 38 will counterbalance the torsion spring, and the arc-shaped clamping plate 38 will rotate outside the second rotating shaft 36. The arc-shaped clamping plate 38 is set to a "," shape, which can better clamp pipes 13 of different specifications, thereby improving the side fixing ability and preventing the side deviation of the pipe 13 when the bracket 14 moves.

[0043] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A material support device for a laser tube cutting machine, comprising a laser tube cutting machine (1) and a support frame (12), characterized in that: At least two support frames (14) are fixedly mounted above the support frame (12); a main frame (15) is vertically slidably mounted inside each of the support frames (14); a cross frame (18) is fixedly mounted on the top of each of the main frames (15); and bar teeth (19) are fixedly mounted on the left and right sides of each of the cross frames (18); A first rotating shaft (21) is rotatably mounted above the left and right sides of each of the support frames (14); a gear (22) is fixedly mounted on the surface of each of the first rotating shafts (21); each of the gears (22) is meshed with the bar teeth (19); two side support frames (23) are fixedly sleeved on the outer ring of each of the first rotating shafts (21) located on both sides of the gear (22); and a first clamping frame (24) is fixedly mounted between the ends of each of the two side support frames (23); Wherein, two circular frames (3) are arranged on the side of each of the first clamping frames (24), and the outer side walls of the two circular frames (3) are movably mounted with side sliding frames (31), and a first sliding frame (26) is movably mounted between each of the side sliding frames (31) and the first clamping frame (24), and an arc-shaped clamping plate (38) is rotatably mounted inside each of the circular frames (3), and a laser cutting assembly (11) is arranged inside the laser tube cutting machine (1), and a pipe (13) is arranged above the support frame (12), and the pipe (13) is placed on each of the cross brackets (18), and the pipe (1 3) is clamped by the first clamping frame (24), the circular frame (3) and the arc-shaped clamping plate (38), each of the main brackets (15) is fixedly installed with side plates (16) on the left and right sides, each of the side plates (16) and the bottom of the inner wall of the support frame (14) is fixedly installed with a first spring (17), each of the left and right sides of the cross bracket (18) is provided with a groove (39), and the ends of both sides of each cross bracket (18) protrude to both sides, each of the first clamping frame (24) is provided with a first slide groove (25) on the back side, and each of the first sliding frames (26) is vertically slidably installed. The first sliding frame (25) is installed in the first sliding groove (25), the top of each first clamping frame (24) is fixedly installed with an upper top plate (4), the back of each first sliding frame (26) is fixedly installed with a second sliding frame (27), and a second spring (28) is fixedly installed between the top of each second sliding frame (27) and the bottom of the upper top plate (4), and the inner wall of each side sliding frame (31) is provided with a second sliding groove (32), and each second sliding frame (27) is horizontally slidably installed in the second sliding groove (32), and the back of each second sliding frame (27) and the inner wall of the second sliding groove (32) are fixedly installed. A third spring (29) is fixedly installed, a second rotating shaft (36) is fixedly installed between the two circular frames (3) on the same side, and the second rotating shaft (36) is close to the upper side of the circular frame (3), a torsion spring is arranged between each of the second rotating shaft (36) and the two circular frames (3), each of the arc-shaped clamping plates (38) is located between the two circular frames (3), and each of the arc-shaped clamping plates (38) is rotatably sleeved outside the second rotating shaft (36), and the arc-shaped clamping plates (38) are subjected to the elastic force of the torsion spring, and a blocking rod (37) is fixedly installed between each two circular frames (3) located below the second rotating shaft (36).

2. A material support device for a laser tube cutting machine as claimed in claim 1, characterized in that: Two side slide rails (2) are provided through the front and rear sides of each of the support racks (14); a section protruding from the ends of both sides of each of the cross brackets (18) is located in the side slide rails (2); and an L-shaped baffle plate (35) is fixedly installed on the top of both sides of each of the support racks (14); each of the L-shaped baffle plates (35) is used to prevent the side support rack (23) from rotating in the opposite direction.

3. A material support device for a laser tube cutting machine as claimed in claim 2, characterized in that: A first speed limit plate (33) is fixedly mounted on the upper and lower inner walls of each second slide groove (32), a second speed limit plate (34) is fixedly mounted on the upper and lower side walls of each second sliding frame (27), each second speed limit plate (34) is arranged in a staggered manner with the first speed limit plate (33), and the surfaces of each first speed limit plate (33) and second speed limit plate (34) are composed of a plurality of arc-shaped protrusions.

4. A material support device for a laser tube cutting machine as claimed in claim 3, characterized in that: A bottom slide groove (41) is formed through the bottom of each of the support racks (14), and a lower end of each of the main brackets (15) is slidably inserted into the bottom slide groove (41).

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