A corrugated tube laser cutting machine

Abstract

The invention relates to the field of laser cutting technology, and discloses a corrugated tube laser tube cutting machine, which is used for cutting corrugated tubes. The laser tube cutting machine comprises a base, a fixed support tube, a sliding support tube, a fixed chuck, a movable chuck, a rotating ring, a first driving assembly, a feed port, a first limiting assembly and a cylinder. By starting the cylinder, the output end of the cylinder drives the sliding support tube to move toward the fixed support tube. When the sliding support tube contacts the fixed support tube, the cylinder stops. After the movable chuck fixes the end of the corrugated tube, the fixed chuck is separated from the corrugated tube. The cylinder is started again, and the cylinder drives the end of the corrugated tube to move toward the cylinder through the sliding support tube and the movable chuck, so that the sliding support tube and the movable chuck stay at the specified position. The fixed chuck fixes the corrugated tube again, and the first limiting assembly limits the moving trajectory and moving speed of the corrugated tube; the corrugated tube between the fixed chuck and the movable chuck is in a horizontal straight line; cutting is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, and in particular to a corrugated tube laser cutting machine. Background Art

[0002] Laser tube cutting machine is a kind of equipment that cuts tubes by laser.

[0003] Chinese patent CN202410558764.6 discloses a loading and unloading device for a laser tube cutting machine. When loading the tube, the support block is moved to the second position, and then the first power assembly is started. The first power assembly switches the support block and the tube from the second position to the first position. When the support block is in the first position, the central axis of the tube coincides with the central axis of the chuck, and then the chuck is controlled to move toward the direction of the tube so that the end of the tube is located in the middle of multiple claws of the chuck, and then the claws are controlled to clamp to achieve tube loading.

[0004] However, this feeding method is only suitable for straight pipes that are not easy to deform. When cutting corrugated pipes, the corrugated pipes can be rolled up and easily deformed. When the chuck is clamped by the claws and drives the corrugated pipe to move away from the first position, the corrugated pipe between the chuck and the first position is no longer supported. The corrugated pipe is a metal pipe and is heavy. The corrugated pipe between the chuck and the first position will be subjected to pulling force on the corrugated pipe at the first position, and the corrugated pipe at the first position will continue to move toward the chuck, making the corrugated pipe between the chuck and the first position U-shaped, and the laser cutting head cannot cut it. Summary of the invention

[0005] The purpose of the present invention is to provide a corrugated tube laser cutting machine to solve the following technical problems:

[0006] How to make the corrugated tube be automatically fed and cut in a straight line for easy cutting.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A corrugated tube laser cutting machine is used for cutting corrugated tubes. The laser cutting machine comprises a base, and the base is provided with:

[0009] A fixed support tube is fixedly arranged at one end of the base; and a cavity is arranged in the fixed support tube;

[0010] A sliding support tube is slidably arranged at the other end of the base, and a cavity is arranged in the sliding support tube;

[0011] A fixed chuck, fixedly arranged at one end of the fixed support tube close to the sliding support tube;

[0012] A movable chuck is fixedly arranged on one end of the sliding support tube close to the fixed support tube;

[0013] A rotating ring, rotatably arranged outside the fixed chuck;

[0014] A first driving assembly, disposed on the fixed chuck, for driving the rotating ring to rotate;

[0015] A feed inlet is provided in the middle of a side wall of the fixed support tube away from the sliding support tube;

[0016] A first limiting assembly is fixedly disposed in the cavity of the fixed support cylinder and is used to limit the moving direction and moving speed of the bellows;

[0017] The cylinder is fixedly arranged on a side of the sliding support tube away from the fixed support tube, and the output end of the cylinder is fixedly connected to the sliding support tube.

[0018] As a further solution of the present invention: a support rod is arranged in the middle of the sliding support tube; the support rod is arranged horizontally, and one end of the support rod is located on the side of the movable chuck close to the fixed chuck; the other end of the support rod is located on the side of the sliding support tube away from the fixed chuck; a locking assembly is arranged in the sliding support tube, and the locking assembly is used to lock the support rod and the sliding support tube.

[0019] As a further solution of the present invention: the locking assembly comprises:

[0020] A support ring, fixedly arranged at one end of the movable chuck away from the fixed chuck;

[0021] A rotating nut is rotatably arranged on a side of the support ring away from the fixed chuck; a thread is provided on the support rod, and the rotating nut is matched with the thread of the support rod;

[0022] The first gear is sleeved on the outside of the rotating nut and is fixedly connected to the rotating nut;

[0023] A second driving assembly is disposed on one side of the first gear and is used to drive the first gear to rotate;

[0024] The second limiting assembly is used to limit the support rod so that the support rod cannot rotate.

[0025] As a further solution of the present invention: the first limiting component includes:

[0026] Two limit plates are fixedly arranged in the fixed support cylinder; the feed port is located between the two limit plates; the two limit plates are arranged in parallel up and down;

[0027] A plurality of speed limiting units are arranged between the two limit plates and located on both sides of the feed port, and are used to limit the moving speed of the bellows.

[0028] As a further solution of the present invention: the speed limiting unit includes a fixing plate, a baffle and a spring;

[0029] The fixing plate is fixedly arranged on the limiting plate;

[0030] The baffle is rotatably arranged on the limiting plate and is located on a side of the baffle close to the fixed chuck; the length of the baffle is greater than the length of the fixed plate;

[0031] The spring is arranged between the baffle plate and the fixing plate.

[0032] As a further solution of the present invention: the diameter of the end portion of the support rod close to the fixed chuck is smaller than the diameter of the middle portion of the support rod.

[0033] As a further solution of the present invention: the second limiting assembly includes an upper limiting groove formed on the support rod and a protrusion fixedly arranged on the support ring and the sliding support cylinder; the protrusion is located in the limiting groove.

[0034] As a further solution of the present invention: a feeding opening is provided in the middle of the base.

[0035] Beneficial effects of the present invention:

[0036] (1) The present invention starts the cylinder, and the output end of the cylinder drives the sliding support cylinder to move toward the fixed support cylinder. When the sliding support cylinder contacts the fixed support cylinder, the cylinder stops. After the movable chuck fixes the end of the bellows, the fixed chuck is separated from the bellows. The cylinder is started again, and the cylinder drives the end of the bellows to move toward the cylinder through the sliding support cylinder and the movable chuck, so that the sliding support cylinder and the movable chuck stay at the specified position. The fixed chuck fixes the bellows again. The first limit assembly limits the moving trajectory and moving speed of the bellows during the movement of the bellows toward the cylinder; the bellows between the fixed chuck and the movable chuck are in a horizontal straight line; and the bellows loading is automatically completed;

[0037] (2) The present invention starts the air cylinder, and the output end of the air cylinder drives the sliding support cylinder and the movable chuck to move toward the fixed chuck. At the same time, the sliding support cylinder drives the support rod to move toward the fixed chuck through the locking assembly. The outer diameter of the support rod is slightly smaller than the inner diameter of the bellows. The support rod passes through the end of the bellows and is inserted into the bellows. The outer wall of the support rod fits and slides with the inner wall of the bellows, so that the bellows is in a horizontal state. When the sliding support cylinder contacts the fixed support cylinder, the air cylinder stops, and the movable chuck fixes the end of the bellows. When the movable chuck fixes the end of the bellows, the end of the bellows is sleeved on the outside of the support rod to prevent the end of the bellows from moving when the movable chuck fixes the end of the bellows, thereby facilitating the movable chuck to fix the end of the bellows.

[0038] (3) The present invention has two ends of the support rod passing through the support ring and the side wall of the sliding support tube away from the fixed support tube, and the second limiting components are respectively arranged between the support ring and the side wall of the sliding support tube away from the fixed support tube. Therefore, the side wall of the support ring and the sliding support tube away from the fixed support tube supports the support rod, so that the support rod is in a horizontal straight line, and the side wall of the support ring and the sliding support tube away from the fixed support tube limits the support rod through the second limiting component, so that the support rod cannot rotate; the middle part of the support rod is threadedly matched with the rotating nut; by starting the second driving component, the second driving component drives the first gear to rotate, the first gear drives the rotating nut to rotate, the rotating nut is threadedly matched with the support rod, and the rotating nut rotates. Since the support rod cannot rotate under the action of the second limiting component, the support rod will move horizontally along the axial direction of the support rod, thereby adjusting the length of one end of the support rod close to the fixed chuck. After the second driving component stops, the support rod is locked and cannot move. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The present invention will be further described below in conjunction with the accompanying drawings.

[0040] Figure 1 A schematic diagram of the main structure of an embodiment of the present invention;

[0041] Figure 2 A partial structural schematic diagram of an embodiment of the present invention;

[0042] Figure 3 A cross-sectional view of the fixed support cylinder and the movable support cylinder structure of an embodiment of the present invention;

[0043] Figure 4 A partial structural schematic diagram of a locking assembly according to an embodiment of the present invention;

[0044] Figure 5 for Figure 4 A local enlarged view of point A;

[0045] Figure 6 This is a structural explosion diagram of a first limiting component according to an embodiment of the present invention.

[0046] Description of the drawings: 1. Bellows; 2. Base; 3. Fixed support cylinder; 4. Sliding support cylinder; 5. Fixed chuck; 6. Moving chuck; 7. Rotating ring; 8. Feed port; 9. First limit assembly; 91. Limit plate; 92. Speed ​​limiting unit; 921. Fixed plate; 922. Baffle; 923. Spring; 10. Cylinder; 11. Support rod; 12. Locking assembly; 121. Support ring; 122. Rotating nut; 123. First gear; 124. Second drive assembly; 125. Second limit assembly; 1251. Limit groove; 1252. Bump; 13. Feed port. DETAILED DESCRIPTION

[0047] 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.

[0048] See also Figure 1-Figure 3 As shown, in one embodiment, a corrugated tube laser cutting machine is provided, which is used for cutting a corrugated tube 1. The laser cutting machine includes a base 2, and the base 2 is provided with:

[0049] The fixed support tube 3 is fixedly arranged at one end of the base 2; and a cavity is arranged inside the fixed support tube 3;

[0050] A sliding support tube 4 is slidably disposed at the other end of the base 2, and a cavity is disposed in the sliding support tube 4;

[0051] A fixed chuck 5 is fixedly arranged at one end of the fixed support cylinder 3 close to the sliding support cylinder 4;

[0052] The movable chuck 6 is fixedly arranged on one end of the sliding support cylinder 4 close to the fixed support cylinder 3;

[0053] A rotating ring 7 is rotatably arranged outside the fixed chuck 5;

[0054] A first driving assembly, disposed on the fixed chuck 5, for driving the rotating ring 7 to rotate;

[0055] A feed port 8 is provided in the middle of the side wall of the fixed support tube 3 away from the sliding support tube 4;

[0056] The first limiting assembly 9 is fixedly arranged in the cavity of the fixed support tube 3 and is used to limit the moving direction and moving speed of the bellows 1;

[0057] The cylinder 10 is fixedly arranged on a side of the sliding support cylinder 4 away from the fixed support cylinder 3, and the output end of the cylinder 10 is fixedly connected to the sliding support cylinder 4;

[0058] Through the above technical scheme, before the operation of this embodiment, the end of the bellows 1 is passed through the first limit assembly 9 and the fixed chuck 5 from the feed port 8; the fixed chuck 5 fixes the end of the bellows 1. During operation, by starting the cylinder 10, the output end of the cylinder 10 drives the sliding support cylinder 4 to move toward the fixed support cylinder 3. When the sliding support cylinder 4 contacts the fixed support cylinder 3, the cylinder 10 stops. After the mobile chuck 6 fixes the end of the bellows 1, the fixed chuck 5 is separated from the bellows 1. The cylinder 10 is started again. The cylinder 10 drives the end of the bellows 1 to move toward the cylinder 10 through the sliding support cylinder 4 and the mobile chuck 6, so that the sliding support cylinder 4 and the mobile chuck 6 stay at the specified position. The fixed chuck 5 fixes the bellows 1 again, and the first limit assembly 9 limits the moving trajectory and moving speed of the bellows 1 during the movement of the bellows 1 toward the cylinder 10; the bellows 1 between the fixed chuck 5 and the movable chuck 6 is made to be a horizontal straight line; a liftable laser cutting head is arranged on the inner side of the rotating ring 7, and the rotating ring 7 is driven to rotate by the first driving assembly, and the laser cutting head cuts the bellows 1. After cutting, the movable chuck 6 is separated from the bellows 1, and the cut bellows 1 falls onto the base 2; the first cutting is completed; the cylinder 10 is started again for the next cutting; the loading of the bellows 1 is automatically completed, and the bellows 1 is made to be a straight line when cutting;

[0059] It should be noted that the first driving assembly is implemented by the existing technology, and the fixed chuck 5 and the movable chuck 6 are chucks in the existing technology, which will not be described in detail here.

[0060] As an embodiment of the present invention, please refer to Figure 1-Figure 3 As shown, a support rod 11 is provided in the middle of the sliding support cylinder 4; the support rod 11 is arranged horizontally, and one end of the support rod 11 is located on the side of the movable chuck 6 close to the fixed chuck 5; the other end of the support rod 11 is located on the side of the sliding support cylinder 4 away from the fixed chuck 5; a locking assembly 12 is provided in the sliding support cylinder 4, and the locking assembly 12 is used to lock the support rod 11 with the sliding support cylinder 4;

[0061] Through the above technical scheme, this embodiment locks the support rod 11 and the sliding support cylinder 4 through the locking assembly 12, and starts the cylinder 10. The output end of the cylinder 10 drives the sliding support cylinder 4 and the movable chuck 6 to move toward the fixed chuck 5. At the same time, the sliding support cylinder 4 drives the support rod 11 to move toward the fixed chuck 5 through the locking assembly 12. The outer diameter of the support rod 11 is slightly smaller than the inner diameter of the bellows 1. The support rod 11 enters and is inserted into the bellows 1 through the end of the bellows 1. The outer wall of the support rod 11 slides in contact with the inner wall of the bellows 1, so that the bellows 1 is in a horizontal state. When the sliding support cylinder 4 contacts the fixed support cylinder 3, the cylinder 10 stops, and the movable chuck 6 fixes the end of the bellows 1. When the movable chuck 6 fixes the end of the bellows 1, the end of the bellows 1 is sleeved on the outside of the support rod 11 to prevent the movable chuck 6 from fixing the end of the bellows 1. The end of the bellows 1 will not move, which is convenient for the movable chuck 6 to fix the end of the bellows 1.

[0062] As an embodiment of the present invention, please refer to Figure 3-Figure 4 As shown, the locking assembly 12 includes:

[0063] A support ring 121 is fixedly arranged at one end of the movable chuck 6 away from the fixed chuck 5;

[0064] The rotating nut 122 is rotatably arranged on the side of the support ring 121 away from the fixed chuck 5; the support rod 11 is provided with a thread, and the rotating nut 122 is threadedly matched with the support rod 11;

[0065] The first gear 123 is sleeved on the outside of the rotating nut 122 and fixedly connected to the rotating nut 122;

[0066] A second driving assembly 124 is disposed on one side of the first gear 123 and is used to drive the first gear 123 to rotate;

[0067] The second limiting assembly 125 is used to limit the support rod 11 so that the support rod 11 cannot rotate;

[0068] Through the above technical scheme, in this embodiment, the two ends of the support rod 11 pass through the support ring 121 and the side wall of the sliding support tube 4 away from the fixed support tube 3, respectively, and the second limit assembly 125 is respectively arranged between the support ring 121 and the side wall of the sliding support tube 4 away from the fixed support tube 3. Therefore, the support ring 121 and the side wall of the sliding support tube 4 away from the fixed support tube 3 play a supporting role on the support rod 11, so that the support rod 11 is in a horizontal straight line, and the support ring 121 and the side wall of the sliding support tube 4 away from the fixed support tube 3 limit the support rod 11 through the second limit assembly 125, so that the support rod 11 cannot rotate; The middle part of the support rod 11 is threadedly matched with the rotating nut 122; by starting the second driving assembly 124, the second driving assembly 124 drives the first gear 123 to rotate, the first gear 123 drives the rotating nut 122 to rotate, the rotating nut 122 is threadedly matched with the support rod 11, and the rotating nut 122 rotates. Since the support rod 11 cannot rotate under the action of the second limiting assembly 125, the support rod 11 will move horizontally along the axial direction of the support rod 11, thereby adjusting the length of one end of the support rod 11 close to the fixed chuck 5. After the second driving assembly 124 stops, the support rod 11 is locked and cannot move;

[0069] It should be noted that the second driving assembly 124 is implemented by existing technology and will not be described in detail here.

[0070] As an embodiment of the present invention, please refer to Figure 3 and Figure 6 As shown, the first limiting component 9 includes:

[0071] Two limit plates 91 are fixedly arranged in the fixed support cylinder 3; the feed port 8 is located between the two limit plates 91; the two limit plates 91 are arranged in parallel up and down;

[0072] A plurality of speed limiting units 92 are arranged between the two limiting plates 91 and located on both sides of the feed port 8 to limit the moving speed of the bellows 1;

[0073] The speed limiting unit 92 includes a fixing plate 921, a baffle 922 and a spring 923;

[0074] The fixing plate 921 is fixedly arranged on the limiting plate 91;

[0075] The baffle plate 922 is rotatably disposed on the limiting plate 91 and is located on a side of the baffle plate 922 close to the fixed chuck 5; the length of the baffle plate 922 is greater than the length of the fixed plate 921;

[0076] The spring 923 is disposed between the baffle plate 922 and the fixing plate 921;

[0077] Through the above technical scheme, the present embodiment feeds the bellows 1 from the feed port 8, and the two limit plates 91 limit the moving direction of the bellows 1 from the bottom and the upper part of the bellows 1 respectively, and the distance between the two limit plates 91 is slightly larger than the maximum outer diameter of the bellows 1, so the bellows 1 passes between the two limit plates 91, and when the bellows 1 moves toward the fixed chuck 5, the fixed plate 921 does not contact the bellows 1; the baffle 922 contacts the bellows 1, and under the action of the spring 923, the baffle 922 is subjected to an elastic force in the direction away from the fixed chuck 5; the baffle 922 slows down the moving speed of the bellows 1 through the protrusion outside the bellows 1, prevents the bellows 1 from moving too fast due to inertia, and ensures that the bellows 1 between the fixed chuck 5 and the movable chuck 6 is in a straight line.

[0078] As an embodiment of the present invention, the diameter of the end of the support rod 11 close to the fixed chuck 5 is smaller than the diameter of the middle part of the support rod 11;

[0079] Through the above technical solution, in this embodiment, the diameter of the end of the support rod 11 close to the fixed chuck 5 is smaller than the diameter of the middle part of the support rod 11, which facilitates the support rod 11 to be inserted into the end of the corrugated tube 1.

[0080] As an embodiment of the present invention, please refer to Figure 5 As shown, the second limiting assembly 125 includes an upper limiting groove 1251 opened on the support rod 11 and a protrusion 1252 fixedly arranged on the support ring 121 and the sliding support tube 4; the protrusion 1252 is located in the limiting groove 1251; and is used to prevent the support rod 11 from rotating.

[0081] As an embodiment of the present invention, please refer to Figure 1-Figure 2 As shown, a feeding opening 13 is provided in the middle of the base 2 .

[0082] Through the above technical solution, this embodiment places a conveyor belt under the discharge port 13. After cutting, the movable chuck 6 is separated from the cut corrugated tube 1, and the corrugated tube 1 falls from the discharge port 13 into the conveyor belt for the next processing step.

[0083] Working principle of the present invention:

[0084] Before work, pass the end of the bellows 1 from the feed port 8 through the space between the two limit plates 91 and the fixed chuck 5; the fixed chuck 5 fixes the end of the bellows 1; by starting the second drive assembly 124, the second drive assembly 124 drives the first gear 123 to rotate, the first gear 123 drives the rotating nut 122 to rotate, the rotating nut 122 is threadedly matched with the support rod 11, and the rotating nut 122 rotates. Since the support rod 11 cannot rotate under the action of the second limit assembly 125, the support rod 11 will move horizontally along the axial direction of the support rod 11, so as to adjust the length of the end of the support rod 11 close to the fixed chuck 5 according to the length of the bellows 1 required to be cut. After the second drive assembly 124 stops, the support rod 11 is locked and cannot move;

[0085] During operation, by starting the cylinder 10, the output end of the cylinder 10 drives the sliding support cylinder 4 to move toward the fixed support cylinder 3. At the same time, the sliding support cylinder 4 drives the support rod 11 to move toward the fixed chuck 5 through the sliding support cylinder 4. The outer diameter of the support rod 11 is slightly smaller than the inner diameter of the bellows 1. The support rod 11 enters the bellows 1 through the end of the bellows 1. The outer wall of the support rod 11 slides in contact with the inner wall of the bellows 1, so that the bellows 1 is in a horizontal state. The diameter of the end of the support rod 11 close to the fixed chuck 5 is smaller than the inner diameter of the bellows 1. The middle diameter of the support rod 11 facilitates the insertion of the support rod 11 into the end of the bellows 1; when the sliding support tube 4 contacts the fixed support tube 3, the cylinder 10 stops, and after the mobile chuck 6 fixes the end of the bellows 1, the fixed chuck 5 is separated from the bellows 1, and the cylinder 10 is started again. The cylinder 10 drives the end of the bellows 1 to move toward the cylinder 10 through the sliding support tube 4 and the mobile chuck 6, so that the sliding support tube 4 and the mobile chuck 6 stay at the specified position, and the fixed chuck 5 fixes the bellows 1 again, and the bellows 1 moves toward the fixed chuck. 5, the fixed plate 921 is not in contact with the bellows 1; the baffle 922 is in contact with the bellows 1, and under the action of the spring 923, the baffle 922 is subjected to an elastic force in the direction away from the fixed chuck 5; the baffle 922 slows down the movement speed of the bellows 1 through the protrusion outside the bellows 1, preventing the bellows 1 from moving too fast due to inertia, and ensuring that the bellows 1 between the fixed chuck 5 and the movable chuck 6 is in a straight line; a liftable laser cutting head is provided on the inner side of the rotating ring 7, and the rotating ring 7 is driven to rotate by the driving assembly , the laser cutting head cuts the corrugated tube 1, and after cutting, the moving chuck 6 is separated from the corrugated tube 1, and the cut corrugated tube 1 falls onto the base 2; the first cutting is completed; by placing a conveyor belt under the discharge port 13, after cutting, the moving chuck 6 is separated from the cut corrugated tube 1, and the corrugated tube 1 falls into the conveyor belt from the discharge port 13 for the next processing; the cylinder 10 is started again for the next cutting; the loading of the corrugated tube 1 is automatically completed, and the corrugated tube 1 is made to be in a straight line during cutting, which is convenient for cutting.

[0086] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A corrugated tube laser cutting machine, used for cutting corrugated tubes (1), the laser tube cutting machine comprising a base (2), characterized in that: The base (2) is provided with: A fixed support tube (3) is fixedly arranged at one end of the base (2); and a cavity is arranged in the fixed support tube (3); A sliding support tube (4) is slidably arranged at the other end of the base (2), and a cavity is arranged in the sliding support tube (4); A fixed chuck (5) is fixedly arranged on one end of the fixed support tube (3) close to the sliding support tube (4); A movable chuck (6) is fixedly arranged on one end of the sliding support tube (4) close to the fixed support tube (3); A rotating ring (7) is rotatably arranged outside the fixed chuck (5); a liftable laser cutting head is arranged on the inner side of the rotating ring (7); A first driving assembly, arranged on the fixed chuck (5) and used for driving the rotating ring (7) to rotate; A feed port (8) is provided in the middle of a side wall of the fixed support tube (3) away from the sliding support tube (4); A first limiting assembly (9) is fixedly arranged in the cavity of the fixed support cylinder (3) and is used to limit the moving direction and moving speed of the bellows (1); The cylinder (10) is fixedly arranged on a side of the sliding support cylinder (4) away from the fixed support cylinder (3), and the output end of the cylinder (10) is fixedly connected to the sliding support cylinder (4); A support rod (11) is arranged in the middle of the sliding support tube (4); the support rod (11) is arranged horizontally, and one end of the support rod (11) is located on a side of the movable chuck (6) close to the fixed chuck (5); the other end of the support rod (11) is located on a side of the sliding support tube (4) away from the fixed chuck (5); a locking assembly (12) is arranged in the sliding support tube (4), and the locking assembly (12) is used to lock the support rod (11) and the sliding support tube (4); The locking assembly (12) comprises: A support ring (121) is fixedly arranged at one end of the movable chuck (6) away from the fixed chuck (5); A rotating nut (122) is rotatably arranged on a side of the support ring (121) away from the fixed chuck (5); a thread is provided on the support rod (11), and the rotating nut (122) is threadedly matched with the support rod (11); A first gear (123) is sleeved on the outside of the rotating nut (122) and is fixedly connected to the rotating nut (122); A second driving assembly (124), disposed on one side of the first gear (123), and used for driving the first gear (123) to rotate; A second limiting assembly (125) is used to limit the support rod (11) so that the support rod (11) cannot rotate; The support rod (11) moves horizontally along the axial direction of the support rod (11), thereby adjusting the length of one end of the support rod (11) close to the fixed chuck (5); The first limiting component (9) comprises: Two limit plates (91) are fixedly arranged in the fixed support cylinder (3); the feed port (8) is located between the two limit plates (91); the two limit plates (91) are arranged in parallel up and down; A plurality of speed limiting units (92) are arranged between the two limiting plates (91) and are located on both sides of the feed port (8); and are used to limit the moving speed of the bellows (1); The speed limiting unit (92) comprises a fixing plate (921), a baffle (922) and a spring (923); The fixing plate (921) is fixedly arranged on the limiting plate (91); The baffle plate (922) is rotatably disposed on the limiting plate (91) and is located on a side of the fixed plate (921) close to the fixed chuck (5); the length of the baffle plate (922) is greater than the length of the fixed plate (921); The spring (923) is arranged between the baffle plate (922) and the fixing plate (921).

2. The corrugated tube laser cutting machine according to claim 1, characterized in that: The diameter of the end portion of the support rod (11) close to the fixed chuck (5) is smaller than the diameter of the middle portion of the support rod (11).

3. The corrugated tube laser cutting machine according to claim 2, characterized in that: The second limiting assembly (125) comprises an upper limiting groove (1251) provided on the support rod (11) and a protrusion (1252) fixedly arranged on the support ring (121) and the sliding support cylinder (4); the protrusion (1252) is located in the limiting groove (1251).

4. The corrugated tube laser cutting machine according to claim 3, characterized in that: A feeding opening (13) is provided in the middle of the base (2).

Images