CN114260562A

CN114260562A - Laser cutting angle adjusting device

Info

Publication number: CN114260562A
Application number: CN202210084928.7A
Authority: CN
Inventors: 车朝杰
Original assignee: Jiangsu Clyde Laser Technology Co ltd
Current assignee: Jiangsu Clyde Laser Technology Co ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-04-01

Abstract

The invention discloses a laser cutting angle adjusting device, which belongs to the technical field of laser cutting, and in the laser cutting machine in the prior art, as most of laser cutting heads on the surface of the laser cutting machine are not rotatable, the laser cutting heads can only realize vertical cutting of workpieces and cannot finish oblique angle cutting of the workpieces, the laser cutting machine comprises a cutting machine tool, wherein two moving seats are slidably arranged on one surface of the cutting machine tool; through the rotation of drive cambered surface ring gear, cambered surface ring gear makes the arc slider slide through the head rod, the arc slider makes vertical adjustment mechanism rotate through L type connecting rod, the laser cutting head in the connecting sleeve rotates in step, rotate through the drive axis of rotation, the axis of rotation is through fixed cover, the connecting block makes the connecting sleeve rotate, the laser cutting head in the connecting sleeve rotates in step, thereby the convenient angle modulation who has realized the laser cutting head, and then the flexibility of laser cutting head has been improved effectively, and the follow-up convenience to the cutting of the different angles of work piece has been improved effectively.

Description

Laser cutting angle adjusting device

Technical Field

The invention relates to the technical field of laser cutting, in particular to a laser cutting angle adjusting device.

Background

Laser cutting machine: the laser cutting processing is to replace the traditional mechanical knife by invisible light beams, has the characteristics of high precision, quick cutting, no limitation on cutting patterns, automatic typesetting, material saving, smooth cut, low processing cost and the like, and can gradually improve or replace the traditional metal cutting process equipment. The mechanical part of the laser tool bit is not in contact with the workpiece, so that the surface of the workpiece cannot be scratched in the working process; the laser cutting speed is high, the cut is smooth and flat, and subsequent processing is generally not needed; the cutting heat affected zone is small, the deformation of the plate is small, and the cutting seam is narrow; the notch has no mechanical stress and no shearing burr; the processing precision is high, the repeatability is good, and the surface of the material is not damaged; numerical control programming can process any plan view, can cut the whole board with large breadth, does not need to open a die, is economical and time-saving, and the laser cutting machine in the prior art has the following problems:

1. in the laser cutting machine in the prior art, most of the laser cutting heads on the surface of the laser cutting machine can not rotate, so that the laser cutting heads can only vertically cut workpieces and cannot finish oblique angle cutting of the workpieces;

2. at present, the laser cutting head on the surface of a laser cutting machine is fixedly installed through a bolt, the laser cutting head is frequently used and is easy to damage, when the laser cutting head needs to be maintained, the laser cutting head needs to be detached through a repeated knob bolt, and therefore the laser cutting head is troublesome to maintain.

Disclosure of Invention

The present invention is directed to a laser cutting angle adjusting device to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a laser cutting angle adjusting device, includes cutting off machine, cutting off machine's one side slidable mounting has two to remove the seat, two fixedly connected with connecting plate between the removal seat, the surface slidable mounting of connecting plate has the equipment storehouse, the one side in equipment storehouse is equipped with the laser cutting head, the one side in equipment storehouse is equipped with horizontal adjustment mechanism, horizontal adjustment mechanism's surface is equipped with vertical adjustment mechanism, vertical adjustment mechanism's surface is equipped with dismouting mechanism.

As a preferable technical scheme of the invention, one surface of the cutting machine tool, which is far away from the moving seat, is uniformly and fixedly provided with the stabilizing seats, two sides of the cutting machine tool are uniformly and uniformly provided with the heat dissipation grooves, one surface of the cutting machine tool, which is far away from the stabilizing seats, is rotatably provided with the transmission device, the outer wall of the laser cutting head is fixedly provided with the connecting conduit, and one end of the connecting conduit, which is far away from the laser cutting head, is fixedly connected with one surface of the equipment bin.

As a preferred technical scheme of the invention, the transverse adjusting mechanism comprises an arc-shaped plate, the outer wall of the arc-shaped plate is fixedly connected with one surface of the equipment bin, an arc-shaped groove is formed in the surface of the arc-shaped plate, an arc-shaped guide rail is fixedly installed on the inner wall of the arc-shaped groove, an arc-shaped sliding block is connected to the surface of the arc-shaped guide rail in a sliding manner, a first connecting rod is fixedly installed on one surface of the arc-shaped sliding block, and an arc-shaped toothed ring is fixedly installed at one end, far away from the arc-shaped sliding block, of the first connecting rod.

According to a preferable technical scheme of the invention, a servo motor is fixedly arranged on one surface of the equipment bin, a rotating rod is fixedly arranged at the driving output end of the servo motor, a semicircular gear is fixedly arranged at one end, away from the servo motor, of the rotating rod, and the semicircular gear is in meshed connection with the cambered surface toothed ring.

According to the preferable technical scheme, the outer wall of the servo motor is fixedly connected with a fixing block, the fixing block is fixedly connected with one surface of the equipment bin, and one side of the arc-shaped sliding block is fixedly provided with an L-shaped connecting rod.

As a preferred technical scheme, the longitudinal adjusting mechanism comprises a U-shaped sleeve, one end, far away from the arc-shaped sliding block, of the L-shaped connecting rod is fixedly connected with the outer wall of the U-shaped sleeve, a rotating shaft is rotatably installed on the inner wall of the U-shaped sleeve, a fixing sleeve is fixedly connected to the outer wall of the rotating shaft, a connecting block is fixedly installed on the outer wall of the fixing sleeve, and a transmission gear is fixedly installed at one end of the rotating shaft.

As a preferred technical scheme of the invention, the outer wall of the U-shaped sleeve is provided with a guide groove, the inner wall of the guide groove is connected with a guide block in a sliding manner, one side of the guide block is fixedly provided with two second connecting rods, one end of each second connecting rod, which is far away from the guide block, is fixedly provided with a toothed plate, the toothed plate is meshed with the transmission gear, the inner wall of the guide groove is fixedly provided with an electric push rod, and the piston end of the electric push rod is fixedly connected with one surface of the guide block.

As a preferred technical scheme, the disassembling and assembling mechanism comprises a connecting sleeve, one surface, far away from the fixing sleeve, of the connecting block is fixedly connected with the outer wall of the connecting sleeve, two L-shaped fixing plates are fixedly mounted on the outer wall of the connecting sleeve, two guide rods are fixedly mounted on the inner walls of the two L-shaped fixing plates, semicircular limiting rings are fixedly mounted at the piston ends of the two adjacent guide rods, threaded rods are rotatably mounted on one sides of the two L-shaped fixing plates through threads, and the threaded rods penetrate through the outer walls of the L-shaped fixing plates and the semicircular limiting rings to be rotatably connected.

As a preferable technical scheme, a protective sleeve is fixedly arranged on the inner wall of the connecting sleeve, the outer wall of the laser cutting head is movably contacted with the inner wall of the protective sleeve, and through grooves are formed in the surfaces of the connecting sleeve and the protective sleeve.

As a preferred technical scheme, semicircular protective pads are fixedly arranged on one surfaces of the two semicircular limiting rings, one surfaces, far away from the semicircular limiting rings, of the semicircular protective pads are movably contacted with the outer wall of the laser cutting head, and handles are fixedly arranged at one ends, far away from the semicircular limiting rings, of the two threaded rods.

Compared with the prior art, the invention has the beneficial effects that:

1. the cambered surface toothed ring is driven to rotate, the cambered surface toothed ring enables the cambered sliding block to slide through the first connecting rod, the cambered sliding block enables the longitudinal adjusting mechanism to rotate through the L-shaped connecting rod, the laser cutting head in the connecting sleeve synchronously rotates, meanwhile, the rotating shaft is driven to rotate, the rotating shaft enables the connecting sleeve to rotate through the fixing sleeve and the connecting block, and the laser cutting head in the connecting sleeve synchronously rotates, so that the angle adjustment of the laser cutting head is conveniently realized, the flexibility of the laser cutting head is effectively improved, and the convenience of subsequent cutting of workpieces at different angles is effectively improved;

2. through making the semicircle limiting plate remove to make the semicircle protection fill up with the tip separation of laser cutting head, thereby convenient realization the dismantlement of laser cutting head, and then effectual improvement dismantlement laser cutting head's convenience, and improved the convenience of maintaining laser cutting head effectively.

Drawings

Figure 1 is a schematic view of the overall structure of the present invention,

figure 2 is a schematic view of the connection between the equipment bin and the laser cutting head of the invention,

figure 3 is a schematic view of the connection of the lateral adjustment mechanism of the present invention,

FIG. 4 is an enlarged view of the portion A of FIG. 3 according to the present invention,

figure 5 is a schematic view of the connection of the longitudinal adjustment mechanism of the present invention,

FIG. 6 is an enlarged view of the portion B of FIG. 5 according to the present invention,

figure 7 is a schematic view of the detachment mechanism of the invention separated from the laser cutting head,

FIG. 8 is an enlarged view of the portion C of FIG. 7 according to the present invention.

In the figure: 1. cutting the machine tool; 11. a stabilizing base; 12. a heat sink; 13. a transmission device; 14. a movable seat; 15. a connecting plate; 16. an equipment bin; 17. a laser cutting head; 18. connecting a conduit; 2. a lateral adjustment mechanism; 21. an arc-shaped plate; 22. an arc-shaped slot; 23. an arc-shaped guide rail; 24. an arc-shaped sliding block; 25. a first connecting rod; 26. a cambered surface toothed ring; 27. a servo motor; 28. a fixed block; 29. rotating the rod; 3. a semi-circular gear; 31. an L-shaped connecting rod; 4. a longitudinal adjustment mechanism; 41. a U-shaped sleeve; 42. a rotating shaft; 43. fixing a sleeve; 45. connecting blocks; 46. a transmission gear; 47. a guide groove; 48. a guide block; 49. a second connecting rod; 5. a toothed plate; 51. an electric push rod; 6. a disassembly and assembly mechanism; 61. a connecting sleeve; 62. a protective sleeve; 63. a through groove; 64. an L-shaped fixing plate; 65. a guide bar; 66. a semicircular limiting ring; 67. a semicircular protective pad; 68. a threaded rod; 69. a handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): as shown in fig. 1-8, the invention provides a laser cutting angle adjusting device, which comprises a cutting machine 1, wherein two moving seats 14 are slidably mounted on one surface of the cutting machine 1, the moving seats 14 can slide along the surface horizontal direction of the cutting machine 1, a connecting plate 15 is fixedly connected between the two moving seats 14, an equipment bin 16 is slidably mounted on the surface of the connecting plate 15, the equipment bin 16 can slide along the surface horizontal direction of the connecting plate 15, a laser cutting head 17 is arranged on one surface of the equipment bin 16, a transverse adjusting mechanism 2 is arranged on one surface of the equipment bin 16, the transverse adjusting mechanism 2 can conveniently realize transverse angle adjustment of the laser cutting head 17, a longitudinal adjusting mechanism 4 is arranged on the surface of the transverse adjusting mechanism 2, the longitudinal adjusting mechanism 4 can conveniently realize longitudinal angle adjustment of the laser cutting head 17, a mechanism 6 is mounted and dismounted on the surface of the longitudinal adjusting mechanism 4, dismouting mechanism 6 can be convenient the installation and the dismantlement of realization laser cutting head 17, and then the staff of being convenient for maintains laser cutting head 17.

Further, one side evenly distributed fixed mounting that cutting off machine 1 kept away from and removed seat 14 has a stable seat 11, stable seat 11 can improve cutting off machine 1's stability effectively, radiating groove 12 has been seted up to cutting off machine 1's both sides evenly distributed, the heat that produces during the internal plant operation of cutting off machine 1 can be discharged through radiating groove 12, cutting off machine 1 keeps away from the one side of stable seat 11 and rotates and install transmission device 13, through external drive transmission device 13, transmission device 13 can realize waiting to cut the removal of work piece, the outer wall fixed mounting of laser cutting head 17 has connection conduit 18, connection conduit 18 keeps away from the one end of laser cutting head 17 and the one side fixed connection of equipment storehouse 16, equipment storehouse 16 can be through connecting conduit 18 drive laser cutting head 17 operation.

Further, horizontal adjustment mechanism 2 is including arc 21, the outer wall of arc 21 and the one side fixed connection of equipment storehouse 16, arc 22 has been seted up on the surface of arc 21, the inner wall fixed mounting of arc 22 has arc guide rail 23, arc guide rail 23's surface sliding connection has arc slider 24, arc slider 24 can slide as the centre of a circle along the surface of arc guide rail 23 with the axle center of arc 21, arc slider 24's one side fixed mounting has head rod 25, the one end fixed mounting that arc slider 24 was kept away from to head rod 25 has cambered surface ring gear 26, cambered surface ring gear 26 can make arc slider 24 slide through head rod 25.

Further, the fixed servo motor 27 that is equipped with in one side of equipment storehouse 16, servo motor 27's drive output end fixed mounting has dwang 29, through opening servo motor 27, servo motor 27's drive shaft can make dwang 29 rotate, the one end fixed mounting that servo motor 27 was kept away from to dwang 29 has semicircle gear 3, dwang 29 can make semicircle gear 3 rotate, semicircle gear 3 and cambered surface ring gear 26 meshing are connected, can drive cambered surface ring gear 26 and rotate when semicircle gear 3 rotates.

Further, the outer wall of the servo motor 27 is fixedly connected with a fixing block 28, the fixing block 28 is fixedly connected with one surface of the equipment bin 16, the fixing block 28 can effectively improve the stability of the servo motor 27, and one side of the arc-shaped sliding block 24 is fixedly provided with an L-shaped connecting rod 31.

Further, vertical adjustment mechanism 4 is including U type cover 41, the one end that arc slider 24 was kept away from to L type connecting rod 31 and the outer wall fixed connection of U type cover 41, arc slider 24 can make U type cover 41 synchronous rotation through L type connecting rod 31, the axis of rotation 42 is installed in the inner wall rotation of U type cover 41, the fixed cover 43 of outer wall fixedly connected with of axis of rotation 42, the outer wall fixed mounting of fixed cover 43 has connecting block 45, axis of rotation 42 can make connecting block 45 synchronous rotation through fixed cover 43, the one end fixed mounting of axis of rotation 42 has drive gear 46, drive gear 46 can make axis of rotation 42 rotate.

Further, a guide groove 47 is formed in the outer wall of the U-shaped sleeve 41, a guide block 48 is connected to the inner wall of the guide groove 47 in a sliding manner, the guide block 48 can horizontally slide along the inner wall of the guide groove 47, two second connecting rods 49 are fixedly mounted on one side of the guide block 48, a toothed plate 5 is fixedly mounted at one end, away from the guide block 48, of each second connecting rod 49, the guide block 48 can enable the toothed plate 5 to horizontally move through the second connecting rods 49, the toothed plate 5 and the transmission gear 46 are meshed and connected, the toothed plate 5 can drive the transmission gear 46 to rotate while horizontally moving, an electric push rod 51 is fixedly mounted on the inner wall of the guide groove 47, a piston end of the electric push rod 51 is fixedly connected with one surface of the guide block 48, and by opening the electric push rod 51, a piston end of the electric push rod 51 can enable the guide block 48 to horizontally slide.

Further, the disassembling and assembling mechanism 6 comprises a connecting sleeve 61, the laser cutting head 17 can be inserted into the connecting sleeve 61, one surface of the connecting block 45 away from the fixing sleeve 43 is fixedly connected with the outer wall of the connecting sleeve 61, the connecting block 45 can enable the connecting sleeve 61 to rotate synchronously, two L-shaped fixing plates 64 are fixedly installed on the outer wall of the connecting sleeve 61, two guide rods 65 are fixedly installed on the inner walls of the two L-shaped fixing plates 64, semicircular limiting rings 66 are fixedly installed on the piston ends of two adjacent guide rods 65, the guide rods 65 can enable the semicircular limiting rings 66 to move horizontally, the semicircular limiting rings 66 can limit the laser cutting head 17 sleeved in the connecting sleeve 61, threaded rods 68 are rotatably installed on one sides of the two L-shaped fixing plates 64, the threaded rods 68 penetrate through the outer walls of the L-shaped fixing plates 64 and the semicircular limiting rings 66 to be rotatably connected, through rotation of the threaded rods 68, the threaded rod 68 can drive the semicircular limiting ring 66 to move horizontally.

Further, connecting sleeve 61's inner wall fixed mounting has lag 62, the outer wall of laser cutting head 17 and the inner wall movable contact of lag 62, and lag 62 can avoid installing the outer wall of the laser cutting head 17 in connecting sleeve 61 and receive wearing and tearing, and connecting sleeve 61 and lag 62's surface has all been seted up logical groove 63, through seting up logical groove 63, can be convenient for alternate and connect conduit 18.

Further, the equal fixed mounting in one side of two semicircle spacing rings 66 has semicircle protection pad 67, semicircle protection pad 67 keeps away from the one side of semicircle spacing ring 66 and the outer wall movable contact of laser cutting head 17, when semicircle spacing ring 66 carries on spacingly to laser cutting head 17, semicircle protection pad 67 can avoid the outer wall of laser cutting head 17 to receive wearing and tearing because of spacing, the equal fixed mounting in one end that semicircle spacing ring 66 was kept away from to two threaded rods 68 has handle 69, through knob handle 69, handle 69 can make threaded rod 68 rotate.

The working principle is as follows: when the angle of the laser cutting head 17 needs to be adjusted, a worker firstly turns on the servo motor 27, a driving shaft of the servo motor 27 drives the rotating rod 29 to rotate, the rotating rod 29 enables the semicircular gear 3 to rotate, the semicircular gear 3 drives the cambered surface toothed ring 26 to rotate, the cambered surface toothed ring 26 enables the arc-shaped sliding block 24 to slide through the first connecting rod 25, the arc-shaped sliding block 24 slides along the surface of the arc-shaped guide rail 23 by taking the axis of the arc-shaped plate 21 as the circle center, meanwhile, the arc-shaped sliding block 24 enables the longitudinal adjusting mechanism 4 to rotate through the L-shaped connecting rod 31, and the laser cutting head 17 in the connecting sleeve 61 synchronously rotates;

by turning on the electric push rod 51, the piston end of the electric push rod 51 extends and pushes the guide block 48 to slide horizontally, the guide block 48 slides horizontally along the inner wall of the guide groove 47 and enables the toothed plate 5 to synchronously move horizontally through the two second connecting rods 49, the toothed plate 5 drives the transmission gear 46 to rotate while moving horizontally, the transmission gear 46 enables the rotating shaft 42 to rotate, the rotating shaft 42 enables the connecting sleeve 61 to rotate through the fixing sleeve 43 and the connecting block 45, meanwhile, the laser cutting head 17 in the connecting sleeve 61 rotates synchronously until the angle of the laser cutting head 17 after transverse rotation and longitudinal rotation meets the requirement of subsequent cutting operation, then the servo motor 27 and the electric push rod 51 are closed, thereby conveniently realizing the angle adjustment of the laser cutting head 17, the flexibility of the laser cutting head 17 is effectively improved, and the convenience of subsequent cutting of workpieces at different angles is effectively improved;

when laser cutting head 17 is maintained to needs, the staff at first respectively two handles 69 of knob, two handles 69 make two threaded rods 68 rotate, make two semicircle spacing rings 66 and two semicircle protection pads 67 remove dorsad when two threaded rods 68 rotate, and simultaneously, the piston end shrink of four guide bars 65, stop two handles 69 of knob again after two semicircle protection pads 67 break away from completely with the tip of laser cutting head 17, thereby the convenient dismantlement of laser cutting head 17 that has realized, and then the effectual convenience of dismantling laser cutting head 17 that has improved, and the convenience of maintaining laser cutting head 17 has been improved effectively.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A laser cutting angle adjusting device, includes cutting off machine (1), its characterized in that: one side slidable mounting of cutting off machine bed (1) has two to remove seat (14), two fixedly connected with connecting plate (15) between removal seat (14), the surface slidable mounting of connecting plate (15) has equipment storehouse (16), the one side of equipment storehouse (16) is equipped with laser cutting head (17), the one side in equipment storehouse (16) is equipped with horizontal adjustment mechanism (2), the surface of horizontal adjustment mechanism (2) is equipped with vertical adjustment mechanism (4), the surface of vertical adjustment mechanism (4) is equipped with dismouting mechanism (6).

2. The laser cutting angle adjusting apparatus according to claim 1, wherein: one side evenly distributed fixed mounting that removes seat (14) is kept away from in cutting off machine (1) has stable seat (11), radiating groove (12) have been seted up to the both sides evenly distributed of cutting off machine (1), the one side that stable seat (11) were kept away from in cutting off machine (1) is rotated and is installed transmission device (13), the outer wall fixed mounting of laser cutting head (17) has connection conduit (18), the one end of laser cutting head (17) and the one side fixed connection in equipment storehouse (16) are kept away from in connection conduit (18).

3. The laser cutting angle adjusting apparatus according to claim 1, wherein: horizontal adjustment mechanism (2) is including arc (21), the outer wall of arc (21) and the one side fixed connection in equipment storehouse (16), arc wall (22) have been seted up on the surface of arc (21), the inner wall fixed mounting of arc wall (22) has arc guide rail (23), the sliding surface of arc guide rail (23) is connected with arc slider (24), the one side fixed mounting of arc slider (24) has head rod (25), the one end fixed mounting that arc slider (24) were kept away from in head rod (25) has cambered surface ring gear (26).

4. A laser cutting angle adjusting apparatus according to claim 3, wherein: the one side of equipment storehouse (16) is fixed and is equipped with servo motor (27), the drive output end fixed mounting of servo motor (27) has dwang (29), the one end fixed mounting that servo motor (27) were kept away from in dwang (29) has semicircle gear (3), semicircle gear (3) and cambered surface ring gear (26) meshing are connected.

5. The laser cutting angle adjusting apparatus according to claim 4, wherein: the outer wall fixedly connected with fixed block (28) of servo motor (27), the one side fixed connection in fixed block (28) and equipment storehouse (16), one side fixed mounting of arc slider (24) has L type connecting rod (31).

6. The laser cutting angle adjusting apparatus according to claim 5, wherein: vertical adjustment mechanism (4) are including U type cover (41), the outer wall fixed connection of the one end of arc slider (24) and U type cover (41) is kept away from in L type connecting rod (31), the inner wall of U type cover (41) rotates and installs axis of rotation (42), the fixed cover (43) of outer wall fixedly connected with of axis of rotation (42), the outer wall fixed mounting of fixed cover (43) has connecting block (45), the one end fixed mounting of axis of rotation (42) has drive gear (46).

7. The laser cutting angle adjusting apparatus according to claim 6, wherein: guide way (47) have been seted up to the outer wall of U type cover (41), the inner wall sliding connection of guide way (47) has guide block (48), one side fixed mounting of guide block (48) has two second connecting rods (49), the one end fixed mounting that guide block (48) were kept away from in second connecting rod (49) has pinion rack (5), pinion rack (5) and drive gear (46) meshing connection, the inner wall fixed mounting of guide way (47) has electric putter (51), the one side fixed connection of piston end and guide block (48) of electric putter (51).

8. The laser cutting angle adjusting apparatus according to claim 6, wherein: dismouting mechanism (6) are including connecting sleeve (61), the one side of fixed cover (43) and the outer wall fixed connection of connecting sleeve (61) are kept away from in connecting block (45), the outer wall fixed mounting of connecting sleeve (61) has two L type fixed plates (64), two the equal fixed mounting of inner wall of L type fixed plate (64) has two guide bars (65), adjacent two the equal fixed mounting of piston end of guide bar (65) has semicircle spacing ring (66), two threaded rod (68) is installed in the equal screw thread rotation in one side of L type fixed plate (64), threaded rod (68) runs through the outer wall rotation connection of L type fixed plate (64) and semicircle spacing ring (66).

9. The laser cutting angle adjusting apparatus according to claim 8, wherein: the inner wall fixed mounting of connecting sleeve (61) has lag (62), the outer wall of laser cutting head (17) and the inner wall movable contact of lag (62), logical groove (63) have all been seted up on the surface of connecting sleeve (61) and lag (62).

10. The laser cutting angle adjusting apparatus according to claim 8, wherein: two the equal fixed mounting in one side of semicircle spacing ring (66) has semicircle protection pad (67), the one side of semicircle spacing ring (66) and the outer wall swing joint of laser cutting head (17) are kept away from to semicircle protection pad (67), two the equal fixed mounting in one end that semicircle spacing ring (66) were kept away from in threaded rod (68) has handle (69).