CN221134507U

CN221134507U - Adjustable laser cutting machine

Info

Publication number: CN221134507U
Application number: CN202322692781.2U
Authority: CN
Inventors: 朱力; 陈金云
Original assignee: Jiangsu Sixinghui Intelligent Equipment Co ltd
Current assignee: Jiangsu Sixinghui Intelligent Equipment Co ltd
Priority date: 2023-10-08
Filing date: 2023-10-08
Publication date: 2024-06-14
Anticipated expiration: 2033-10-08

Abstract

The utility model relates to the field of laser cutting machines, in particular to an adjustable laser cutting machine which comprises a workbench, wherein a cutting device is arranged on the workbench, the cutting device comprises a laser cutting head and a travelling mechanism for driving the laser cutting head to move, a positioning device for positioning and fixing a plate is arranged on the workbench, the positioning device comprises a mounting frame and a positioning mechanism, the mounting frame is arranged on a table top of the workbench, the positioning mechanisms are arranged at two ends of the mounting frame in the length direction, and the positioning mechanism at one end of the mounting frame in the length direction slides along the length direction of the workbench. The adjustable laser cutting machine can accurately position and fix plates with different specifications, and improves the application range of the adjustable laser cutting machine in positioning and fixing the plates.

Description

Adjustable laser cutting machine

Technical Field

The utility model relates to the field of laser cutting machines, in particular to an adjustable laser cutting machine.

Background

The laser cutting machine focuses laser emitted from the laser into laser beams with high power density through an optical path system. The laser beam irradiates the surface of the workpiece to make the workpiece reach the melting point or boiling point, and high-pressure gas coaxial with the laser beam blows away the molten or gasified metal. Along with the movement of the relative positions of the light beam and the workpiece, the material is finally formed into a kerf, so that the aim of cutting is achieved.

The laser cutting processing replaces the traditional mechanical knife with invisible light beams, has the characteristics of high precision, rapid cutting, automatic typesetting, material saving, smooth cut, low processing cost and the like, is not limited by cutting pattern limitation, and is gradually improved or replaced by the traditional metal cutting process equipment. The mechanical part of the laser tool bit is not contacted with the workpiece, so that the surface of the workpiece is not scratched in work; the laser cutting speed is high, the notch is smooth and flat, and no subsequent processing is generally needed.

The existing laser cutting machine comprises a workbench, a cutting device is arranged on the workbench, the cutting device comprises a laser cutting head and a travelling mechanism for driving the laser cutting head to move, and the travelling mechanism consists of a linear module, so that the laser cutting head can move along the length, width and height directions of a plate. Before cutting the plate, the plate needs to be manually placed on a cutting table top, and then the cutting head is used for cutting the plate, so that deviation is easy to generate in the placement of the plate in the process, and machining errors are easy to generate in the process of cutting. In order to avoid the above-mentioned situations, a specific positioning device is usually used to fix the plate before cutting the plate, so as to ensure the cutting accuracy. But the plates with different specifications have different thicknesses, lengths and widths, and the positioning device on the same cutting machine is difficult to position and fix the plates with different specifications, so that the application range is small.

Disclosure of utility model

In order to solve the technical problems, the application provides an adjustable laser cutting machine.

The application provides an adjustable laser cutting machine which adopts the following technical scheme:

The utility model provides an adjustable laser cutting machine, includes the workstation, is provided with cutting device on the workstation, and cutting device includes the laser cutting head and is used for driving the running gear that the laser cutting head removed, be provided with on the workstation and be used for fixing a position positioner to panel, positioner includes mounting bracket and positioning mechanism, the mounting bracket is provided with on the mesa of workstation, positioning mechanism sets up in mounting bracket length direction's both ends, the positioning mechanism of mounting bracket length direction one end slides along the length direction of workstation.

Preferably, the positioning mechanism comprises a fixed block and a fixed assembly, the fixed block is connected to the mounting rack, the fixed assembly is slidably arranged at two ends of the length direction of the fixed block, the fixed assembly slides towards the direction close to or far away from each other, the fixed assembly comprises a sliding block, a fixed plate, a threaded sleeve, a fixed rod and a tight propping plate, a sliding groove is formed in the bottom surface of the fixed block, two sliding blocks slide in the same sliding groove, a bidirectional screw rod is horizontally arranged in the sliding groove, two ends of the bidirectional screw rod are rotatably connected with the inner wall of the sliding groove, and two ends of the bidirectional screw rod penetrate through the sliding block and are in threaded connection with the sliding block, the fixed plate is connected to the bottom surface of the sliding block, and the threaded sleeve is connected to the bottom surface of the fixed plate;

The fixing rod is arranged in a lifting manner, can be lifted to be separated from the plate, can be lowered to be propped against the plate, the top end of the fixing rod passes through the fixing plate, the sliding block and the mounting frame and is rotationally connected with the fixing plate, the sliding block and the mounting frame, an external thread matched with the thread bush is arranged on the fixing rod, the thread bush is sleeved on the fixing rod, the fixing rod is in threaded connection with the thread bush, the fixing rod and the bidirectional screw rod are arranged in a staggered manner, and the propping plate is connected to the bottom surface of the fixing rod;

The side wall of the fixed block is provided with a first motor, and a rotating shaft of the first motor is connected with a bidirectional screw rod through a synchronous assembly.

Preferably, the sliding block and the sliding groove are both T-shaped, and the outer peripheral wall of the sliding block is attached to the inner wall of the sliding groove.

Preferably, the synchronous assembly comprises a first synchronous wheel, a second synchronous wheel and a synchronous belt, wherein the first synchronous wheel is coaxially connected to a rotating shaft of the first motor, the second synchronous wheel is coaxially connected to the middle part of the bidirectional screw rod in the axial direction, the synchronous belt is sleeved on the first synchronous wheel and the second synchronous wheel simultaneously, the inner wall of the synchronous belt is abutted against the peripheral walls of the first synchronous wheel and the second synchronous wheel simultaneously, a yielding through groove for the movement of the synchronous belt is formed in the side wall of the fixed block, and the yielding through groove is communicated with the sliding groove.

Preferably, the positioning mechanism at one end of the workbench in the length direction slides along the length direction of the workbench through a sliding assembly, the sliding assembly comprises a limiting block, a screw rod and a vertical plate, a limiting groove for the sliding of the limiting block is formed in the mounting frame, the limiting groove is formed in the length direction of the workbench, the limiting block is T-shaped, the vertical section of the limiting block slides in the limiting groove, the vertical section of the limiting block passes through the limiting groove and is connected with a fixed block, the vertical plate is fixed on the top surface of the mounting frame, the vertical plate is positioned at two ends of the screw rod in the axial direction, the two ends of the screw rod are rotationally connected with the vertical plate, and the screw rod passes through the limiting block and is in threaded connection with the screw rod;

The top surface of mounting bracket is provided with the second motor, the pivot of second motor passes through drive assembly and lead screw connection.

Preferably, the driving assembly comprises a first driving wheel, a second driving wheel and a driving belt, wherein the first driving wheel is coaxially connected to a rotating shaft of the first motor, the second driving wheel is coaxially connected to the middle part of the screw shaft in the axial direction, the driving belt is sleeved on the first driving wheel and the second driving wheel at the same time, and the inner wall of the driving belt is abutted against the peripheral walls of the first driving wheel and the second driving wheel at the same time.

Preferably, the top surface of the fixed rod is coaxially connected with a rotating disc, the top surface of the rotating disc is fixedly connected with a handle, and the handle is arranged close to the peripheral side wall of the rotating disc.

Preferably, a silica gel pad is arranged on the bottom surface of the abutting plate.

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

1. Two fixing rods of the same group of positioning mechanisms can be driven to slide towards directions approaching to or separating from each other through the bidirectional screw rod, so that the distance between the two fixing rods is determined according to different adjustment of the widths of the plates, and the plates with different widths can be positioned and fixed;

2. The fixing rod is lifted to adjust the distance between the fixing rod and the workbench according to the thickness difference of the plates, so that the plates with different thicknesses can be positioned and fixed;

3. The sliding positioning mechanism slides along the length direction of the workbench, and the distance between the two positioning mechanisms can be determined according to different lengths of the plates, so that the plates with different lengths can be positioned and fixed.

In conclusion, the staff can adjust the position of dead lever according to the panel of different specifications, and then can fix a position the panel of different specifications, has improved the application scope of laser cutting machine when fixing a position the panel.

Drawings

Fig. 1 is a schematic diagram of an overall structure of an adjustable laser cutting machine according to an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view for showing a fixing assembly according to an embodiment of the present application.

Reference numerals illustrate: 1. a work table; 11. friction protrusions; 2. a cutting device; 21. a laser cutting head; 22. a walking mechanism; 3. a mounting frame; 31. a waist-shaped groove; 32. a limit groove; 4. a positioning mechanism; 41. a fixed block; 411. a chute; 412. a bidirectional screw; 42. a fixing assembly; 421. a slide block; 422. a fixing plate; 423. a thread sleeve; 424. a fixed rod; 425. a pressing plate; 426. a silica gel pad; 427. a rotating disc; 428. a handle; 43. a first motor; 5. a synchronization component; 51. a first synchronizing wheel; 52. a second synchronizing wheel; 53. a synchronous belt; 6. a sliding assembly; 61. a limiting block; 62. a screw rod; 63. a riser; 64. a second motor; 7. a drive assembly; 71. a first drive wheel; 72. a second drive wheel; 73. and driving the belt.

Detailed Description

The application is described in further detail below with reference to fig. 1-2.

The embodiment of the application discloses an adjustable laser cutting machine.

Referring to fig. 1 and 2, the adjustable laser cutting machine includes a workbench 1, a cutting device 2 is disposed on the workbench 1, the cutting device 2 includes a laser cutting head 21 and a travelling mechanism 22 for driving the laser cutting head 21 to move, the travelling mechanism 22 is composed of linear modules, and is divided into a first linear module 221, a second linear module 222 and a third linear module 223, the first linear module 221 drives the laser cutting head 21 to slide along the length direction of the plate, the second linear module 222 drives the laser cutting head 21 to slide along the width direction of the plate, the third linear module 223 drives the laser cutting head 21 to slide along the height direction of the plate, the laser cutting head 21 is connected to a slider of the third linear module 223 to realize lifting of the laser cutting head 21, a mounting frame of the third linear module 223 is connected to a slider of the second linear module 222 to drive the third linear module 223 and the laser cutting head 21 to slide along the width direction of the plate, and the mounting frame of the second linear module 222 is connected to the slider of the first linear module 221 to drive the second linear module 222 and the third linear module 223 and the laser cutting head 21 to slide along the length direction of the plate, so that the laser cutting device is not normally improved in the prior art.

The workbench 1 is provided with a positioning device for positioning and fixing the plate, the positioning device comprises a mounting frame 3 and a positioning mechanism 4, the mounting frame 3 is arranged on a table top of the workbench 1, the positioning mechanism 4 is arranged at two ends of the length direction of the mounting frame 3, and the positioning mechanism 4 at one end of the length direction of the mounting frame 3 slides along the length direction of the workbench 1. A plurality of friction protrusions 11 are uniformly arranged on the surface of the workbench 1.

The positioning mechanism 4 comprises a fixed block 41 and a fixed component 42, the fixed block 41 is connected to the mounting frame 3, the length of the fixed block 41 is matched with the width of the workbench 1, the fixed component 42 is slidably arranged at two ends of the length direction of the fixed block 41, and the fixed component 42 slides towards the direction approaching or separating from each other. The fixing assembly 42 comprises a sliding block 421, a fixing plate 422, a threaded sleeve 423, a fixing rod 424 and a supporting and tightening plate 425, a sliding groove 411 is formed in the bottom surface of the fixing block 41, two sliding blocks 421 slide in the same sliding groove 411, a bidirectional screw 412 is horizontally arranged in the sliding groove 411, two ends of the bidirectional screw 412 are rotatably connected with the inner wall of the sliding groove 411, and two ends of the bidirectional screw 412 penetrate through the sliding block 421 and are in threaded connection with the sliding block 421.

The fixed plate 422 is fixedly connected to the bottom surface of the slide block 421, the top surface of the fixed plate 422 is attached to the bottom surface of the fixed block 41, and the threaded sleeve 423 is fixedly connected to the bottom surface of the fixed plate 422. The slide block 421 and the slide slot 411 are both T-shaped, and the outer peripheral wall of the slide block 421 is attached to the inner wall of the slide slot 411, so that the sliding stability of the slide block 421 in the slide slot 411 is improved. The top surface of the mounting frame 3 is provided with a waist-shaped groove 31 for the fixing rod 424 to slide, and the waist-shaped groove 31 penetrates through the top wall of the mounting frame 3.

The two fixing rods 424 of the same group of positioning mechanisms 4 can be driven to slide towards the directions approaching to or separating from each other through the bidirectional screw 412, so that the distance between the two fixing rods 424 is determined according to different adjustment of the widths of the plates, and thus the plates with different widths can be positioned and fixed. When the distance between the fixing bars 424 is adjusted, the bidirectional screw 412 is driven to rotate, so that the two sliding blocks 421 of the same group slide towards the direction approaching or separating from each other, the sliding grooves 411 inhibit the sliding blocks 421 from rotating along with the rotation of the bidirectional screw 412, and the sliding blocks 421 slide along with the fixing bars 424.

The fixed rod 424 is lifted, the fixed rod 424 can be lifted to the silica gel pad 426 to be separated from the plate, the fixed rod 424 can also be lowered to tightly support the plate, and the top end of the fixed rod 424 passes through the fixed plate 422, the sliding block 421 and the mounting frame 3 and is rotationally connected with the fixed plate 422, the sliding block 421 and the mounting frame 3. Both ends of the thread sleeve 423 are openings, an internal thread is arranged on the inner wall of the thread sleeve 423, an external thread matched with the thread sleeve 423 for use is arranged on the fixed rod 424, the external thread extends to both ends close to the axial direction of the fixed rod 424, the thread sleeve 423 is sleeved on the fixed rod 424, the fixed rod 424 is in threaded connection with the thread sleeve 423, the fixed rod 424 and the bidirectional screw 412 are arranged in a staggered mode, the abutting plate 425 is connected to the bottom surface of the fixed rod 424, the silica gel pad 426 is fixedly arranged on the bottom surface of the abutting plate 425, so that the fixing performance of the abutting plate 425 on a plate is improved, and the displacement of the plate is greatly reduced by matching with the arrangement of the friction protrusions 11.

The fixing rods 424 are lifted to adjust the distance between the fixing rods 424 and the workbench 1 according to the thickness difference of the plates, so that the plates with different thicknesses can be positioned and fixed. When the distance between the abutting plate 425 of the fixing rod 424 and the workbench 1 is adjusted, the fixing rod 424 is rotated, and the external threads on the fixing rod 424 and the threaded sleeve 423 are matched for use to drive the fixing rod 424 to lift.

The fixed rod 424 is fixedly connected with a rotating disc 427 coaxially on the top surface, the rotating disc 427 is fixedly connected with a handle 428 on the top surface, and the handle 428 is arranged close to the peripheral side wall of the rotating disc 427, so that the fixed rod 424 can be conveniently rotated by workers.

The side wall of the fixed block 41 is provided with a first motor 43, and the rotating shaft of the first motor 43 is connected with a bidirectional screw 412 through a synchronous component 5. The synchronous assembly 5 comprises a first synchronous wheel 51, a second synchronous wheel 52 and a synchronous belt 53, wherein the first synchronous wheel 51 is coaxially connected to a rotating shaft of the first motor 43, the second synchronous wheel 52 is coaxially connected to the axial middle part of the bidirectional screw 412, the synchronous belt 53 is simultaneously sleeved on the first synchronous wheel 51 and the second synchronous wheel 52, the inner wall of the synchronous belt 53 is simultaneously abutted against the peripheral walls of the first synchronous wheel 51 and the second synchronous wheel 52, a yielding through groove for the synchronous belt 53 to move is formed in the side wall of the fixed block 41, and the yielding through groove is communicated with the chute 411. When the distance between the two fixing rods 424 needs to be adjusted, the first motor 43 is started, the first motor 43 rotates to drive the first synchronous wheel 51 to rotate, the synchronous belt 53 rotates to drive the second synchronous wheel 52 to rotate, and the bidirectional screw 412 is driven to rotate.

The positioning mechanism 4 of workstation 1 length direction one end slides along the length direction of workstation 1 through sliding component 6, sliding component 6 includes stopper 61, lead screw 62, riser 63, offer on the mounting bracket 3 and supply the gliding spacing groove 32 of stopper 61, spacing groove 32 is offered along the length direction of workstation 1, stopper 61 is the T type, the vertical section of stopper 61 slides in spacing groove 32, the vertical section of stopper 61 passes behind the spacing groove 32 and is connected with the top surface of fixed block 41, riser 63 is fixed in on the top surface of mounting bracket 3, riser 63 is located lead screw 62 axial both ends, lead screw 62's both ends and riser 63 rotate and are connected, lead screw 62 passes stopper 61 and with lead screw 62 threaded connection.

The positioning mechanism 4 slides along the length direction of the workbench 1, and the distance between the two positioning mechanisms 4 can be determined according to different lengths of the plates, so that the plates with different lengths can be positioned and fixed. When the distance between the two groups of positioning mechanisms 4 is adjusted, the screw rod 62 is driven to rotate, the limiting block 61 is driven to slide along the length direction of the workbench 1, the limiting groove 32 inhibits the limiting block 61 from rotating along with the rotation of the screw rod 62, and the fixing block 41 is driven to slide along the length direction of the workbench 1 when the limiting block 61 slides.

A second motor 64 is arranged on the top surface of the mounting frame 3, and the rotating shaft of the second motor 64 is connected with the screw rod 62 through a driving assembly 7. The driving assembly 7 comprises a first driving wheel 71, a second driving wheel 72 and a driving belt 73, wherein the first driving wheel 71 is coaxially connected to the rotating shaft of the second motor 64, the second driving wheel 72 is coaxially connected to the axial middle part of the screw rod 62, the driving belt 73 is sleeved on the first driving wheel 71 and the second driving wheel 72 at the same time, and the inner wall of the driving belt 73 is abutted against the outer peripheral walls of the first driving wheel 71 and the second driving wheel 72 at the same time. When the position of the positioning mechanism 4 at one end of the workbench 1 in the length direction needs to be adjusted, the second motor 64 is started, the second motor 64 rotates to drive the first driving wheel 71 to rotate, the driving belt 73 is driven to rotate, the second driving wheel 72 is driven to rotate, and the screw rod 62 is driven to rotate.

To sum up, the staff can adjust the position of dead lever 424 according to the panel of different specifications, and then can fix a position the panel of different specifications, has improved laser cutting's precision, has improved this laser cutting machine and has carried out the application scope of fixing in the panel location.

The implementation principle of the adjustable laser cutting machine provided by the embodiment of the application is as follows:

When the distance between the fixing bars 424 is adjusted, the bidirectional screw 412 is driven to rotate, so that the two sliding blocks 421 of the same group slide towards the direction approaching or separating from each other, the sliding grooves 411 inhibit the sliding blocks 421 from rotating along with the rotation of the bidirectional screw 412, and the sliding blocks 421 slide along with the fixing bars 424.

When the distance between the abutting plate 425 of the fixing rod 424 and the workbench 1 is adjusted, the fixing rod 424 is rotated, and the external threads on the fixing rod 424 and the threaded sleeve 423 are matched for use to drive the fixing rod 424 to lift.

When the distance between the two groups of positioning mechanisms 4 is adjusted, the screw rod 62 is driven to rotate, the limiting block 61 is driven to slide along the length direction of the workbench 1, the limiting groove 32 inhibits the limiting block 61 from rotating along with the rotation of the screw rod 62, and the fixing block 41 is driven to slide along the length direction of the workbench 1 when the limiting block 61 slides.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. The utility model provides an adjustable laser cutting machine, includes workstation (1), is provided with cutting device (2) on workstation (1), and cutting device (2) include laser cutting head (21) and are used for driving running gear (22) that laser cutting head (21) removed, its characterized in that: the positioning device for positioning and fixing the plates is arranged on the workbench (1) and comprises a mounting frame (3) and a positioning mechanism (4), the mounting frame (3) is arranged on a table top of the workbench (1), the positioning mechanism (4) is arranged at two ends of the mounting frame (3) in the length direction, and the positioning mechanism (4) at one end of the mounting frame (3) in the length direction slides along the length direction of the workbench (1);

The positioning mechanism (4) comprises a fixed block (41) and a fixed assembly (42), the fixed block (41) is connected to the mounting frame (3), the fixed assembly (42) is slidably arranged at two ends of the length direction of the fixed block (41), the fixed assembly (42) slides towards the direction close to or far away from each other, the fixed assembly (42) comprises a sliding block (421), a fixed plate (422), a threaded sleeve (423), a fixed rod (424) and a tightening plate (425), a sliding groove (411) is formed in the bottom surface of the fixed block (41), the two sliding blocks (421) slide in the same sliding groove (411), a bidirectional screw rod (412) is horizontally arranged in the sliding groove (411), two ends of the bidirectional screw rod (412) are rotatably connected with the inner wall of the sliding groove (411), and two ends of the bidirectional screw rod (412) penetrate through the sliding block (421) and are in threaded connection with the sliding block (421), the fixed plate (422) is connected to the bottom surface of the sliding block (421), and the threaded sleeve (423) is connected to the bottom surface of the fixed plate (422).

The fixing rod (424) is arranged in a lifting mode, the fixing rod (424) can be lifted to be separated from a plate, the fixing rod (424) can also be lowered to be abutted against the plate, the top end of the fixing rod (424) penetrates through the fixing plate (422), the sliding block (421), the mounting frame (3) and is rotationally connected with the fixing plate (422), the sliding block (421) and the mounting frame (3), external threads matched with the threaded sleeve (423) are arranged on the fixing rod (424), the threaded sleeve (423) is sleeved on the fixing rod (424), the fixing rod (424) is in threaded connection with the threaded sleeve (423), the fixing rod (424) and the bidirectional screw rod (412) are in staggered arrangement, and the abutting plate (425) is connected to the bottom surface of the fixing rod (424);

A first motor (43) is arranged on the side wall of the fixed block (41), and a rotating shaft of the first motor (43) is connected with a bidirectional screw rod (412) through a synchronous assembly (5);

The positioning mechanism (4) at one end of the workbench (1) in the length direction slides along the length direction of the workbench (1) through the sliding component (6), the sliding component (6) comprises a limiting block (61), a lead screw (62) and a vertical plate (63), a limiting groove (32) for the sliding of the limiting block (61) is formed in the mounting frame (3), the limiting groove (32) is formed in the length direction of the workbench (1), the limiting block (61) is T-shaped, a vertical section of the limiting block (61) slides in the limiting groove (32), the vertical section of the limiting block (61) passes through the limiting groove (32) and is connected with the fixed block (41), the vertical plate (63) is fixed on the top surface of the mounting frame (3), the vertical plate (63) is located at two axial ends of the lead screw (62), two ends of the lead screw (62) are rotationally connected with the vertical plate (63), and the lead screw (62) passes through the limiting block (61) and is in threaded connection with the lead screw (62).

A second motor (64) is arranged on the top surface of the mounting frame (3), and a rotating shaft of the second motor (64) is connected with a screw rod (62) through a driving assembly (7);

A silica gel pad (426) is arranged on the bottom surface of the abutting plate (425).

2. The adjustable laser cutting machine of claim 1, wherein: the sliding block (421) and the sliding groove (411) are both T-shaped, and the outer peripheral wall of the sliding block (421) is attached to the inner wall of the sliding groove (411).

3. The adjustable laser cutting machine of claim 1, wherein: the synchronous assembly (5) comprises a first synchronous wheel (51), a second synchronous wheel (52) and a synchronous belt (53), wherein the first synchronous wheel (51) is coaxially connected to a rotating shaft of a first motor (43), the second synchronous wheel (52) is coaxially connected to the middle part of a bidirectional screw rod (412) in the axial direction, the synchronous belt (53) is sleeved on the first synchronous wheel (51) and the second synchronous wheel (52) at the same time, the inner wall of the synchronous belt (53) is abutted against the peripheral walls of the first synchronous wheel (51) and the second synchronous wheel (52) at the same time, a yielding through groove for the synchronous belt (53) to move is formed in the side wall of the fixed block (41), and the yielding through groove is communicated with the sliding groove (411).

4. The adjustable laser cutting machine of claim 1, wherein: the driving assembly (7) comprises a first driving wheel (71), a second driving wheel (72) and a driving belt (73), wherein the first driving wheel (71) is coaxially connected to a rotating shaft of the first motor (43), the second driving wheel (72) is coaxially connected to the middle part of the screw rod (62) in the axial direction, the driving belt (73) is sleeved on the first driving wheel (71) and the second driving wheel (72) at the same time, and the inner wall of the driving belt (73) is abutted to the outer peripheral walls of the first driving wheel (71) and the second driving wheel (72) at the same time.

5. The adjustable laser cutting machine of claim 1, wherein: the top surface of dead lever (424) is last coaxial coupling has rolling disc (427), fixedly connected with handle (428) on the top surface of rolling disc (427), handle (428) are close to the week lateral wall setting of rolling disc (427).