Laser pipe cutting machine and method capable of self-adapting to pipe diameter

Abstract

The invention relates to the field of laser cutting, in particular to a pipe diameter self-adaptive laser pipe cutting machine and method, the pipe diameter self-adaptive laser pipe cutting machine comprises a cutting table and a cutting head, and the cutting table is connected with a limiting assembly which corresponds to the cutting head and is used for limiting pipe fittings with different pipe diameters; through cooperative work of the multiple adjusting screws and the limiting balls, the limiting position can be automatically adjusted according to different pipe diameters, self-adaptive clamping of pipe fittings with various pipe diameters is achieved, the application range is wide, meanwhile, through limiting cooperation of the limiting arc plates and the limiting balls and centripetal pressure provided by the abutting screws, the pipe fittings with the different pipe diameters can be clamped, and the clamping precision is improved. And it is ensured that pipe fittings with different pipe diameters can be kept stable in the cutting process, and the situation that cutting errors affect the quality of cut finished products is avoided.

Description

Technical Field

[0001] The invention relates to the field of laser cutting, and in particular to a laser tube cutting machine and method with adaptive tube diameter. Background Art

[0002] Laser tube cutting machine is a kind of equipment that uses laser technology to cut metal tubes. It is widely used in automobile manufacturing, aerospace, furniture manufacturing and other industries. With the increase in the demand for industrial automation and precision manufacturing, laser tube cutting machine has significant advantages in improving production efficiency, ensuring cutting accuracy and reducing material waste.

[0003] However, laser tube cutting equipment commonly used for cutting metal pipes usually has some problems in daily use. With the advancement of science and technology, technicians in related fields have also optimized laser tube cutting equipment. In order to make a more accurate comparison, a Chinese patent with announcement number CN221791391U discloses a laser tube cutting machine suitable for different pipe diameters, including a cutting table and a laser head, an arc plate B, a lower universal ball bearing, a cylinder B, a cross plate and an upper universal ball bearing, etc.; when it is in use, through the mutual cooperation between the arc plate B, the lower universal ball bearing, the upper universal ball bearing, the cylinder B, the laser head, the arc plate A, the cylinder A, the rotating motor and the rotating roller, it can achieve the ability to clamp and cut pipes of different diameters, and at the same time, the position of the laser cutting head is automatically adjusted and focused, which has high applicability and convenient operation.

[0004] However, when the above-mentioned prior art is used to cut the pipe fittings, the following problems still exist:

[0005] When the above device is in use, the pipe is placed inside the arc plate A and the arc plate B, and the cylinder A and the cylinder B respectively drive the rotating motor and the cross plate to descend, and the two lower universal ball bearings and the upper universal ball bearing clamp the pipe, and the laser head rises and falls with the rise and fall of the upper universal ball bearing, automatically adapting to the focusing of cutting pipes of different diameters, the rotating motor drives the rotating roller to rotate, and the rotating roller drives the pipe to rotate, then the laser head completes the cutting of the pipe, and the sliding plate drives the remaining pipe to move, then the remaining pipe can continue to be laser cut, and in the process of driving the pipe to rotate, the rotating roller needs to keep the rotating roller and the two supporting rollers in contact with the pipe to achieve the effect of driving the pipe to rotate, and the relative distance between the two supporting rollers is fixed, when it is used for pipes with smaller diameters, the two supporting rollers cannot be simultaneously limited and held on both sides of the pipe to effectively complete the support and limit of the smaller pipe, and at this time, when the rotating roller is pressed against the pipe, the pipe is easily driven by the rotating rotating roller to deflect and shift instead of rotating.

[0006] Therefore, based on the above-stated viewpoint, there is still room for optimization in the existing technical means for cutting pipes. Summary of the invention

[0007] In order to solve the above problems, the present invention provides an adaptive diameter laser tube cutting machine, comprising a cutting table and a cutting head, wherein the cutting table is connected with a limiting component corresponding to the cutting head and used for limiting the positions of tubes with different diameters.

[0008] The limiting component comprises:

[0009] The mounting frame is located on the cutting table and is arranged corresponding to the cutting head;

[0010] The limit frame sleeve is cylindrical and is inserted on the installation frame plate. The inner edge of the limit frame sleeve is circumferentially connected with a plurality of limit balls. The upper limit of the limit balls is provided with an adjusting screw inserted on the limit frame sleeve.

[0011] A plurality of limit arc plates are evenly arranged with the limit frame sleeve as the axis, and any limit arc plate is between two limit balls, and the limit arc plate is connected to the limit frame sleeve through a limit sliding rod.

[0012] Preferably, the limit assembly also includes a driving end arranged on an installation frame plate for driving all limit balls and limit arc plates to perform adaptive adjustment, the driving end includes a limit ring plate threadedly passed through all adjusting screws, the limit ring plate is connected to the limit frame sleeve, and a driven gear is sleeved on the adjusting screw, and a driving gear ring limited in the limit frame sleeve is engaged between all the driven gears.

[0013] Preferably, a clamping spring is commonly connected between the limit slide rod and the limit ring plate, and a clamping screw corresponding to the limit slide rod is threadedly penetrated on the limit ring plate, and a driven gear driven by the driving gear ring is also sleeved on the clamping screw.

[0014] Preferably, the threads of the tightening screw and the adjusting screw have opposite directions of rotation.

[0015] Preferably, the limiting frame sleeve is connected with a driven ring sleeve, and an adjusting shaft is also limitedly connected to the cutting table, and the adjusting shaft and the driven ring sleeve are connected together through a synchronous belt transmission.

[0016] Preferably, the cutting table is also limitedly connected with a driving screw, a threaded sleeve on the driving screw is provided with a driven slider connected to the mounting frame plate, and a through groove for sliding adjustment of the driven slider is formed on the cutting table.

[0017] Preferably, the cutting table is also provided with another connecting frame plate connected to the cutting head correspondingly, and a limited position frame sleeve and a rotating gear ring are also provided in the connecting frame plate corresponding to the installation frame plate, and an adjusting ring sleeve is connected to the rotating gear ring, and the adjusting ring sleeve and the adjusting rotating shaft are connected by a synchronous belt transmission.

[0018] Preferably, a pressure screw is threadedly provided inside the limit frame sleeve and between the limit ring plate, and a driven gear driven by the driving gear ring is also sleeved on the pressure screw. The end of the pressure screw close to the inner edge of the limit frame sleeve is connected to a pressure arc plate attached to the limit frame sleeve.

[0019] Preferably, the adjusting shaft comprises a driving shaft limitedly connected to the cutting table, a sliding sleeve is splined on the driving shaft, and the driving shaft and the driven ring sleeve as well as the sliding sleeve and the adjusting sleeve are respectively connected through synchronous driving transmission.

[0020] In addition, the present invention also provides a method for using a laser tube cutting machine with an adaptive tube diameter, comprising the following steps:

[0021] S1: Place the pipe to be cut on the outside of the limiting ball of the limiting assembly, rotate the adjusting screw to slide the thread of the adjusting screw on the limiting ring plate, and achieve synchronous adjustment of the positions of all limiting balls, so that all limiting balls are limited and held against the outside of the pipe, achieving the effect of limiting the pipe according to the size of the pipe diameter.

[0022] S2: After the pipe is limited, the pipe clamped and limited is driven to slide on the cutting table through the limiting assembly to adjust the relative position between the pipe and the cutting head so as to cut different positions on the pipe.

[0023] S3: During the process of driving the pipe fitting to slide and adjust, the pipe fitting is limited by a plurality of limit arc plates, and then the limit frame sleeve and the limit arc plates are driven to rotate to drive the pipe fitting to rotate as a whole, so as to facilitate the cutting head to completely cut the pipe fitting.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The present invention can automatically adjust the limit position according to different pipe diameters through the coordinated work of a number of adjusting screws and limit balls, thereby realizing adaptive clamping of pipe fittings of various diameters and having a wide range of applications. At the same time, through the limit cooperation of the limit arc plate and the limit ball, as well as the centripetal pressure provided by the tightening screw, it is ensured that pipe fittings of different diameters can remain stable during the cutting process, thereby avoiding cutting errors and affecting the quality of the cut products.

[0026] 2. The present invention can adaptively limit and fix pipes of different sizes according to their diameters through the coordinated work of electric push rods, drive gear rings, adjusting screws and other components, and then drive the pipes to slide and rotate on the cutting table, thereby realizing automated control of pipe limiting, clamping, conveying and cutting, reducing manual operations and effectively improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 It is a structural schematic diagram of the present invention.

[0029] Figure 2 It is a structural schematic diagram of the limiting component of the present invention.

[0030] Figure 3 It is a structural schematic diagram of the limiting ball of the present invention.

[0031] Figure 4 It is a structural schematic diagram of the driving end of the present invention.

[0032] Figure 5 It is a structural schematic diagram of the connection frame plate of the present invention.

[0033] Figure 6 It is a structural schematic diagram of the arc-pressing plate of the present invention.

[0034] Figure 7 It is a structural schematic diagram of the driven paddle of the present invention.

[0035] Figure 8 It is a structural schematic diagram of the adjustable rotating shaft of the present invention.

[0036] In the figure, 1, cutting table; 10, cutting head; 2, limiting assembly; 20, mounting frame plate; 21, limiting frame sleeve; 210, limiting ball; 211, adjusting screw; 22, limiting arc plate; 220, limiting slide rod; 221, pressing spring; 222, pressing screw; 23, driving end; 230, limiting ring plate; 231, driven gear; 232, driving ring gear; 24, driven ring sleeve; 240, adjusting shaft; 2400, driving shaft; 2401, sliding sleeve; 25, driving screw; 250, driven slider; 26, connecting frame plate; 260, rotating ring gear; 261, adjusting ring sleeve; 262, pressing screw; 263, pressing arc plate; 264, driven dial plate. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1 To Attachment Figure 8 Embodiments of the present invention are described in detail.

[0038] The embodiment of the present application discloses a laser tube cutting machine and method with adaptive tube diameter, which explains that the present application is mainly used in the process of laser cutting of tube fittings, and in terms of technical effect can adaptively limit and fix tube fittings of different sizes according to their diameters, and then complete the cutting of the tube fittings; in particular, during the cutting process, the limiting cooperation of the limiting arc plate and the limiting ball can ensure that tube fittings of different diameters can remain stable during the cutting process to avoid cutting errors; and, the present application also realizes the coordinated work of electric push rods, drive gear rings, adjusting screws and other components to realize automated control of tube limiting, clamping, conveying and cutting.

[0039] Reference Figure 1 and Figure 2 As shown, a laser tube cutting machine with adaptive tube diameter includes a cutting table 1 and a cutting head 10. A limiting assembly 2 corresponding to the cutting head 10 and used to limit the position of tubes with different tube diameters is connected to the cutting table 1. The cutting head 10 is a conventional laser cutting technology used for cutting metal materials. When in use, the limiting assembly 2 is used to adaptively limit and clamp the tubes with different tube diameters to be processed, and then the limiting assembly 2 is used to transport the limited tubes to the cutting head 10, and the limiting assembly 2 drives the clamped tubes to rotate, thereby completing the effect of cutting the tubes.

[0040] Reference Figure 2 and Figure 3 As shown, the limiting assembly 2 is used to limit and fix pipes of different diameters; specifically, the limiting assembly 2 includes:

[0041] The mounting frame plate 20 is limitedly located on the cutting table 1 and is arranged corresponding to the cutting head 10 .

[0042] The limiting frame sleeve 21 is cylindrical and limitedly penetrated on the mounting frame plate 20 . A plurality of limiting balls 210 are circumferentially connected to the inner edge of the limiting frame sleeve 21 . The limiting balls 210 are limitedly positioned by an adjusting screw 211 penetrated on the limiting frame sleeve 21 .

[0043] A plurality of limiting arc plates 22 are evenly arranged with the limiting frame sleeve 21 as the axis, and any limiting arc plate 22 is between two limiting balls 210 . The limiting arc plate 22 is connected to the limiting frame sleeve 21 through a limiting slide rod 220 .

[0044] When in use, place the pipe to be processed outside all the limiting balls 210, and then rotate the adjusting screw 211 to adjust the position of the connected limiting balls 210 to achieve the effect of supporting and limiting pipes of different diameters, thereby facilitating subsequent cutting of the pipes.

[0045] Reference Figure 3 and Figure 4As shown, the limit assembly 2 also includes a driving end 23 arranged on the mounting frame plate 20 for driving all the limit balls 210 and the limit arc plates 22 to perform adaptive adjustment. The driving end 23 includes a limit ring plate 230 that is threadedly penetrated between all the adjusting screws 211. The limit ring plate 230 is connected to the limit frame sleeve 21. The adjusting screw 211 is sleeved with a driven gear 231 that is rotatably connected to the limit ring plate 230. A driving gear ring 232 that is limited in position in the limit frame sleeve 21 is meshed between all the driven gears 231. When in use, the limit frame sleeve 21 is driven to rotate on the connected installation frame plate 20, and the limit frame sleeve 21 rotates to drive the connected limit ring plate 230, the adjusting screw 211 and the driven gear 231 to rotate and shift. After the driven gear 231 is driven and shifted by the limit frame sleeve 21, it slides and deflects along the driving ring gear 232. At this time, the driven gear 231 is driven to rotate through the meshing transmission between the driving ring gear 232 and the driven gear 231. The driven gear 231 rotates and drives the connected adjusting screw 211 to rotate synchronously. After the adjusting screw 211 rotates, the thread thereon slides and penetrates the driven gear 231 and the limit ring plate 230, thereby achieving the adjustment effect of the connected limit ball 210 and the pipe fitting position. After all the limit balls 210 are abutted against the pipe fitting, the limit frame sleeve 21 is stopped from rotating, and the effect of adaptive limit fixing of pipe fittings with different diameters is completed.

[0046] It should be noted that in order to facilitate limiting the driving ring gear 232 on the limiting frame sleeve 21 to control the meshing state between the driving ring gear 232 and the driven gear 231, an electric push rod (not shown in the figure) connected to the mounting frame plate 20 is also connected to the driving ring gear 232, and the telescopic section of the electric push rod (not shown in the figure) is connected to the driving ring gear 232.

[0047] Reference Figure 3 and Figure 4 As shown, a clamping spring 221 is commonly connected between the limit slide bar 220 and the limit ring plate 230, and a clamping screw 222 corresponding to the limit slide bar 220 is threadedly penetrated on the limit ring plate 230, and a driven gear 231 driven by a driving gear ring 232 is sleeved on the clamping screw 222. When the limit frame 21 is driven to rotate, the clamping screw 222 and the driven gear 231 are also synchronously driven to rotate and adjust, thereby achieving the effect of adjusting the position of the limit slide bar 220 and the limit arc plate 22 corresponding to the clamping screw 222.

[0048] Further, refer to Figure 4As shown, in order to facilitate the rotation or transportation of the clamped pipe, the threads of the tightening screw 222 and the adjusting screw 211 are in opposite directions, and a plurality of friction grooves are provided on one side of the limiting arc plate 22 close to the middle of the limiting frame sleeve 21 (that is, the side abutting against the pipe) to increase the friction between the limiting arc plate 22 and the pipe.

[0049] During use, when it is necessary to drive the pipe to rotate for cutting, the limit frame sleeve 21 is driven to rotate in the opposite direction as a whole, and the plurality of adjusting screws 211 are driven to rotate in the opposite direction, driving the connected limit balls 210 to slide in the direction away from the pipe until all the limit balls 210 are out of the abutment state with the pipe. Since the threads of the tightening screw 222 and the adjusting screw 211 are rotated in opposite directions, the tightening screw 222 rotates forward and slides in the direction close to the corresponding limit arc plate 22 until it abuts against the corresponding limit slide rod 22 0 and the limiting arc plate 22, and then the limiting arc plate 22 is driven to further abut against the outside of the pipe fitting, so that all the limiting arc plates 22 are simultaneously abutted against the outside of the pipe fitting and exert a centripetal radial pressure on the pipe fitting, and then the electric push rod (not shown in the figure) drives the connected driving ring gear 232 to slide, driving the driving ring gear 232 to disengage from the meshing driven gear 231, and at this time, the limiting frame sleeve 21 is driven to rotate to drive the limiting arc plate 22 and the clamped and limited pipe fitting to rotate synchronously, so as to cut the pipe fitting through the cutting head 10.

[0050] After the cutting of the pipe is completed, the limit frame sleeve 21 drives the clamped pipe to rotate one circle, and then the driving ring gear 232 is driven to reset through the electric push rod (not shown in the figure), so that the driving ring gear 232 is restored to the meshing state with all the driven gears 231. At this time, the limit frame sleeve 21 is rotated forward again to drive all the limit arc plates 22 to disengage from the pipe, and drive all the limit balls 210 to abut against the outside of the pipe, so as to continue to transport the pipe forward.

[0051] Reference Figure 4 and Figure 5 As shown, the limit frame sleeve 21 is connected to a driven ring sleeve 24, and the cutting table 1 is also limitedly connected to an adjustment shaft 240, and the adjustment shaft 240 and the driven ring sleeve 24 are connected through a synchronous belt transmission. When in use, by driving the adjustment shaft 240 to rotate, the driven ring sleeve 24 and the connected limit frame sleeve 21 can be driven to rotate synchronously, thereby achieving the effect of clamping and limiting the pipe fitting.

[0052] Reference Figure 4 and Figure 5As shown, the cutting table 1 is also limitedly connected with a driving screw 25, and a driven slider 250 connected to the mounting frame plate 20 is provided on the driving screw 25 through a thread sleeve, and a through groove for sliding adjustment of the driven slider 250 is formed on the cutting table 1. When in use, by driving the driving screw to rotate, the driven slider 250 drives the connected mounting frame plate 20 to slide and adjust along the through groove on the cutting table 1 through the thread on the driving screw 25, and the mounting frame plate 20 moves to drive the connected limiting frame sleeve 21 and the pipe limited by it to slide synchronously, thereby achieving the effect of conveying the pipe, so that the cutting head 10 can cut different sections on the pipe.

[0053] Reference Figures 4 to 6 As shown, the cutting table 1 is also provided with another connecting frame plate 26 connected to the cutting head 10, and a limiting frame sleeve 21 and a rotating gear ring 260 are also provided in the connecting frame plate 26 corresponding to the mounting frame plate 20, and an adjusting ring sleeve 261 is connected to the rotating gear ring 260, and the adjusting ring sleeve 261 is connected to the adjusting shaft 240 through a synchronous belt transmission, wherein the limiting frame sleeve 21 connected to the connecting frame plate 26 is also limited on the connecting frame plate 26 through an electric push rod (not shown in the figure).

[0054] Reference Figure 6 and Figure 7 As shown, a pressure screw 262 is threadedly provided inside the limit frame sleeve 21 and between the limit ring plate 230, and a driven gear 231 driven by the driving gear ring 232 is also sleeved on the pressure screw 262. One end of the pressure screw 262 close to the inner edge of the limit frame sleeve 21 is connected to a pressure arc plate 263 attached to the limit frame sleeve 21.

[0055] When in use, the electric push rod drives the rotating ring gear 260 to mesh with the driven gear 231, and then the rotating ring gear 260 is driven to rotate, and the rotating ring gear 260 rotates and displaces the meshing driven gear 231 on the connecting frame plate 26 to rotate, and the driven gear 231 rotates to drive the connected clamping screw 222 and the adjusting screw 211 to rotate, so that the clamping screw 222 and the adjusting screw 211 drive the connected pressure arc plate 263 and the limiting ball 210 to slide on the limiting frame sleeve 21, thereby adjusting the relative position between the pressure arc plate 263 and the limiting ball 210 and the pipe fitting, so as to complete the limiting and fixing effect on the other end of the pipe fitting.

[0056] Of course, when it is necessary to drive the pipe to rotate, in order to avoid affecting the stability of the pipe during rotation and cutting, the electric push rod is used to drive the rotating ring gear 260 to disengage from all the driven gears 231 on the connecting frame plate 26, so that the limiting ball 210 on the connecting frame plate 26 is always close to the lower side, and the pressure arc plate 263 is always located on the upper side to provide centripetal radial pressure.

[0057] Furthermore, since the focus of the laser cutting head 10 will change accordingly when cutting pipes of different diameters, in order to facilitate driving the focus of the laser cutting head 10 to always be stable on the pipe, a driven shift plate 264 connected to the laser cutting head 10 is threadedly sleeved on the tightening screw 222, and the driven shift plate 264 is slidably penetrated into the limit frame sleeve 21.

[0058] When in use, while driving the clamping screw 222 to rotate to adjust the arc pressure plate 263, the driven plate 264 also synchronously drives the laser cutting head 10 to move up and down through the threads on the clamping screw 222, so that the laser cutting head 10 can automatically adapt to the focusing of cutting pipes of different diameters.

[0059] Reference Figure 5 and Figure 8 As shown, since the installation frame plate 20 will be driven to slide and adjust along the through groove, the adjusting shaft 240 includes a driving shaft 2400 that is limitedly connected to the cutting table 1, and the driving shaft 2400 is splined with a sliding sleeve 2401. The driving shaft 2400 and the driven ring sleeve 24 as well as the sliding sleeve 2401 and the adjusting sleeve are respectively connected through synchronous driving transmission. Through the spline cooperation between the driving shaft 2400 and the sliding sleeve 2401, the relative position between the installation frame plate 20 and the connecting frame plate 26 can be adjusted, and the driving shaft 2400 and the driven ring sleeve 24 as well as the sliding sleeve 2401 and the adjusting sleeve can also be synchronously driven to rotate synchronously to achieve the rotation adjustment effect of the pipe fitting.

[0060] Place the pipe to be cut on the outside of the limiting ball 210 of the limiting assembly 2, rotate the adjusting screw 211 and slide the thread of the adjusting screw 211 on the limiting ring plate 230 to achieve synchronous adjustment of the positions of all the limiting balls 210, so that all the limiting balls 210 are limited and held against the outside of the pipe, achieving the effect of limiting the pipe according to the size of its diameter.

[0061] In addition, the present invention also provides a method for using a laser tube cutting machine with an adaptive tube diameter, comprising the following steps:

[0062] S1: Place the pipe to be cut on the outside of the limiting ball 210 of the limiting assembly 2, rotate the adjusting screw 211 to achieve synchronous adjustment of the positions of all the limiting balls 210 through the threaded sliding of the adjusting screw 211 on the limiting ring plate 230, so that all the limiting balls 210 are limited and held against the outside of the pipe, achieving the effect of limiting the pipe according to the size of its diameter.

[0063] S2: After the pipe is limited, the limiting assembly 2 drives the clamped pipe to slide on the cutting table 1 to adjust the relative position between the pipe and the cutting head 10 so as to cut different positions on the pipe.

[0064] S3: During the process of driving the pipe to slide and adjust, the pipe is limited by a plurality of limit arc plates 22, and then the limit frame sleeve 21 and the limit arc plates 22 are driven to rotate to drive the pipe as a whole to rotate, thereby facilitating the cutting head 10 to completely cut the pipe.

[0065] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A laser tube cutting machine with adaptive tube diameter, comprising a cutting table (1) and a cutting head (10), characterized in that: The cutting table (1) is connected with a limiting assembly (2) corresponding to the cutting head (10) and used for limiting the position of pipes with different diameters. The limiting assembly (2) comprises: An installation frame plate (20) is limitedly positioned on the cutting table (1) and is arranged corresponding to the cutting head (10); The limiting frame sleeve (21) is cylindrical and is inserted into the mounting frame plate (20). The inner edge of the limiting frame sleeve (21) is circumferentially connected with a plurality of limiting balls (210). The limiting balls (210) have an upper limit adjustment screw (211) inserted into the limiting frame sleeve (21). A plurality of limiting arc plates (22) are evenly arranged with the limiting frame sleeve (21) as the axis, and any limiting arc plate (22) is between two limiting balls (210). The limiting arc plate (22) is connected to the limiting frame sleeve (21) through a limiting slide rod (220).

2. The laser tube cutting machine with adaptive tube diameter according to claim 1, characterized in that: The limit assembly (2) further comprises a driving end (23) arranged on the mounting frame plate (20) for driving all the limit balls (210) and the limit arc plates (22) to perform adaptive adjustment, the driving end (23) comprising a limit ring plate (230) threadedly arranged between all the adjusting screws (211), the limit ring plate (230) being connected to the limit frame sleeve (21), the adjusting screws (211) being sleeved with a driven gear (231), and a driving gear ring (232) limited in position in the limit frame sleeve (21) being meshed between all the driven gears (231).

3. The laser tube cutting machine with adaptive tube diameter according to claim 1, characterized in that: A clamping spring (221) is commonly connected between the limiting slide rod (220) and the limiting ring plate (230), and a clamping screw rod (222) corresponding to the limiting slide rod (220) is threadedly penetrated on the limiting ring plate (230), and a driven gear (231) driven by a driving gear ring (232) is also sleeved on the clamping screw rod (222).

4. The laser tube cutting machine with adaptive tube diameter according to claim 3, characterized in that: The threads of the tightening screw (222) and the adjusting screw (211) are in opposite directions.

5. The laser tube cutting machine with adaptive tube diameter according to claim 1, characterized in that: The limiting frame sleeve (21) is connected to a driven ring sleeve (24), and an adjusting shaft (240) is also connected to the cutting table (1) in a limiting manner. The adjusting shaft (240) and the driven ring sleeve (24) are connected together through a synchronous belt transmission.

6. The laser tube cutting machine with adaptive tube diameter according to claim 1, characterized in that: The cutting table (1) is also limitedly connected to a driving screw rod (25), a driven slider (250) connected to the mounting frame plate (20) is threadedly sleeved on the driving screw rod (25), and a through groove is formed on the cutting table (1) for the driven slider (250) to slide and adjust.

7. The laser tube cutting machine with adaptive tube diameter according to claim 1, characterized in that: The cutting table (1) is also provided with another connecting frame plate (26) corresponding to the cutting head (10), and a limiting frame sleeve (21) and a rotating gear ring (260) are also provided in the connecting frame plate (26) corresponding to the mounting frame plate (20), and an adjusting ring sleeve (261) is connected to the rotating gear ring (260), and the adjusting ring sleeve (261) and the adjusting rotating shaft (240) are connected via a synchronous belt transmission.

8. The laser tube cutting machine with adaptive tube diameter according to claim 1, characterized in that: A pressure screw (262) is threadedly provided inside the limit frame sleeve (21) and between the limit ring plate (230), and a driven gear (231) driven by the driving gear ring (232) is sleeved on the pressure screw (262). One end of the pressure screw (262) close to the inner edge of the limit frame sleeve (21) is connected to a pressure arc plate (263) affixed to the limit frame sleeve (21).

9. The laser tube cutting machine with adaptive tube diameter according to claim 7, characterized in that: The adjusting shaft (240) comprises a driving shaft (2400) which is limitedly connected to the cutting table (1); a sliding sleeve (2401) is splined on the driving shaft (2400); the driving shaft (2400) and the driven ring sleeve (24) as well as the sliding sleeve (2401) and the adjusting sleeve are respectively connected through synchronous driving transmission.

10. A method for using a laser tube cutting machine with an adaptive tube diameter, using the laser tube cutting machine with an adaptive tube diameter as claimed in any one of claims 1 to 9, characterized in that: The method of use includes the following steps: S1: placing the pipe to be cut outside the limiting ball (210) of the limiting assembly (2), rotating the adjusting screw (211) to achieve synchronous adjustment of the positions of all the limiting balls (210) through the threaded sliding of the adjusting screw (211) on the limiting ring plate (230), so that all the limiting balls (210) are limited and abutted against the outside of the pipe, achieving the effect of limiting the pipe according to the size of the pipe diameter; S2: After the position of the pipe is limited, the position limiting component (2) drives the clamped pipe to slide on the cutting table (1), thereby adjusting the relative position between the pipe and the cutting head (10), so as to cut different positions on the pipe; S3: During the process of driving the pipe to slide and adjust, the pipe is limited by a plurality of limit arc plates (22), and then the limit frame sleeve (21) and the limit arc plates (22) are driven to rotate, so as to drive the pipe as a whole to rotate, thereby facilitating the cutting head (10) to completely cut the pipe.

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