Metal sheet laser cutting machine

Abstract

The present invention belongs to the technical field of laser cutting machines, and specifically is a metal sheet laser cutting machine, comprising a strip-shaped housing, a driving assembly, a clamping assembly, a disassembly drum and a mounting swivel seat; a damaged nozzle on a laser cutting machine body is inserted into the middle of the top surface of the disassembly drum, and the clamping assembly clamps and fixes the damaged nozzle; the driving assembly drives the disassembly drum to rotate, and drives the damaged nozzle to rotate through the clamping assembly, so as to remove the damaged nozzle; thereafter, the cutting head of the laser cutting machine body is aligned and contacted with a new nozzle on the mounting swivel seat, and at the same time, the driving assembly drives the mounting swivel seat to rotate, and drives the new nozzle to rotate, so that the new nozzle is threadedly installed to the bottom of the cutting head of the laser cutting machine body; thereby, the automatic replacement of the nozzle is completed, the difficulty of the staff in replacing the nozzle is reduced, and the cutting processing efficiency of the metal sheet is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of laser cutting machines, in particular to a metal plate laser cutting machine. Background Art

[0002] The laser cutting machine emits a high-power density laser beam through a laser; the laser beam irradiates the surface of the workpiece, causing the workpiece to reach its melting point or boiling point, and at the same time, the high-pressure gas coaxial with the beam blows away the molten or vaporized metal; the laser beam used by the laser cutting machine replaces the traditional mechanical knife, and has the characteristics of high precision, fast cutting, smooth incision, and low processing cost.

[0003] A patent application with publication number CN111421248A discloses an automatic laser cutting machine, whose structure includes a cutting machine, a walking platform, a laser, and a cutting platform. The cutting machine includes a conveyor belt, a storage block, a fixed plate, a slide groove, and a limit block. The storage block includes a limit groove, a cross plate, and a clamping plate. The limit groove includes a tension spring, a magnetic plate, a vacuum box, and a piston rod. The cross plate includes a card block, a card groove, a positioning block, a rotating shaft, and a suction plate. The rotating shaft includes a fixed column, a lifting and shrinking rod, a positioning plate, a reset spring, and a fixed block. The suction plate includes a fixed cavity, a positioning cylinder, and a suction cup. The positioning cylinder includes a sealing ring, a through pipe, and an adsorption plug. The building board to be cut is placed on the storage block so that the cross plate fixes the board. At the same time, the clamping plate clamps the board inward under the suction force of the magnetic plate, thereby fixing the board to avoid displacement of the embedded position. Then the conveyor belt is started to transport the board to the bottom of the laser, so as to cut the board.

[0004] The nozzle is a component that cannot be ignored when the laser cutting machine emits a laser beam to perform cutting processing. When the laser cutting machine is laser cutting metal sheets, the corners of the cut part of the metal sheet will be lifted up and hit the nozzle, and the debris generated during cutting will splash and hit the nozzle, which will cause deformation and damage to the nozzle and reduce the cutting quality. At this time, the staff needs to replace the nozzle, which greatly reduces production efficiency.

[0005] To this end, the present invention provides a metal sheet laser cutting machine. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a metal sheet laser cutting machine described in the present invention comprises a laser cutting machine body; a nozzle is threadedly installed at the bottom of the cutting head of the laser cutting machine body; a carrying plate is fixedly connected to the top surface of one end of the laser cutting machine body; a plurality of replacement units are evenly arranged on the top surface of the carrying plate; the replacement unit comprises a strip shell fixedly connected to the top surface of the carrying plate; a disassembly cavity is provided inside the end of the strip shell close to the middle of the laser cutting machine body; an installation cavity is provided at the end of the strip shell away from the middle of the laser cutting machine body; a circular through groove is provided on the middle top surface of the disassembly cavity and the top surface of one end of the installation cavity close to the middle of the laser cutting machine body; a driving cavity is provided between the disassembly cavity and the installation cavity; a driving assembly is arranged inside the driving cavity; a disassembly drum is rotatably installed inside the disassembly cavity; the top of the disassembly drum A clamping assembly is provided at the top; an installation swivel is provided inside the installation cavity; a groove matching the nozzle is opened on the top of the installation swivel; a new nozzle is provided in the top groove of the installation swivel; the driving assembly can drive the disassembly drum and the installation swivel to rotate; the damaged nozzle on the laser cutting machine body is inserted into the middle of the top surface of the disassembly drum, and the clamping assembly clamps and fixes the damaged nozzle; the driving assembly drives the disassembly drum to rotate, and drives the damaged nozzle to rotate through the clamping assembly to remove the damaged nozzle; thereafter, the cutting head of the laser cutting machine body is aligned and contacted with the new nozzle on the installation swivel, and at the same time, the driving assembly drives the installation swivel to rotate, driving the new nozzle to rotate, so that the new nozzle is threadedly installed to the bottom of the cutting head of the laser cutting machine body; thereby completing the automatic replacement of the nozzle, reducing the difficulty of the staff in replacing the nozzle, and improving the cutting efficiency of the metal sheet.

[0008] Preferably, the clamping assembly includes a plurality of slide grooves arranged around the top surface of the disassembly drum; a clamping block is slidably installed inside the slide groove; a rubber anti-slip sheet is fixedly connected to a side of the clamping block close to the center of the disassembly drum; a plurality of No. 1 electric push rods are fixedly connected around the top surface of the disassembly drum; the No. 1 electric push rod corresponds to the slide groove; the piston rod of the No. 1 electric push rod is fixedly connected to the clamping block; a plurality of clamping blocks clamp and fix the damaged nozzles, so that the driving assembly drives the disassembly drum to rotate, which can drive the damaged nozzle to rotate and disassemble, thereby realizing the automatic disassembly of the damaged nozzle.

[0009] Preferably, the driving assembly includes a rotating rod rotatably installed in the middle of the driving chamber; the bottom outer ring of the rotating rod is fixedly connected to a face gear; the bottom surface of the driving chamber is fixedly connected to a motor; the output shaft of the motor is fixedly connected to a gear; the gear is meshed with the face gear; the top outer ring of the rotating rod is fixedly connected to a driving wheel; the top outer periphery of the disassembly drum is fixedly connected to a driven wheel No. 1; the inner rings of the driving wheel and the driven wheel No. 1 are both metal wheels, and the outer rings of the metal wheels are provided with anti-skid convex teeth; the outer rings of the driving wheel and the driven wheel No. 1 are both rubber wheels, and the outer rings of the rubber wheels are provided with anti-skid grooves; the outer ring of the driving wheel and the outer ring of the driven wheel No. 1 are in extrusion contact with each other; providing sufficient power for the disassembly of the nozzle.

[0010] Preferably, a recovery pipe is fixedly connected to the bottom of the disassembly chamber; the inner circle of the recovery pipe is connected to the inner circle of the disassembly drum; the recovery pipe passes through the supporting plate; the bottom of the recovery pipe is connected to a recovery box; it is convenient for staff to recover damaged nozzles.

[0011] Preferably, a plurality of rubber buffer sheets are fixedly connected around the inner ring of the disassembly drum; a plurality of rubber strips are evenly fixedly connected to one side of the rubber buffer sheet close to the center of the disassembly drum; a plurality of the rubber buffer sheets and a plurality of the clamping blocks are alternately arranged; an annular air pipe is fixedly connected to the inner top surface of the disassembly cavity; the annular air pipe is connected to the air pump through a pipeline; a plurality of air nozzles are arranged around the inner ring of the annular air pipe; the air outlets of the air nozzles face the inside of the disassembly drum; the inner rings of the plurality of air nozzles are sleeved on the outside of the inner ring of the disassembly drum; the impact force on the damaged nozzle when it falls is reduced, and the secondary damage to the damaged nozzle is reduced; a certain power is provided for the damaged nozzle to fall, and the nozzle is reduced from being stuck by the rubber strip.

[0012] Preferably, an annular groove is provided on the middle outer ring of the disassembly drum; a plurality of brackets are fixedly connected around the interior of the disassembly cavity; a roller is rotatably mounted on the bracket close to one end of the disassembly drum; the roller is slidably engaged with the annular groove; the disassembly drum is supported by the plurality of brackets and rollers, and at the same time, the stability of the rotation of the disassembly drum is improved by the sliding engagement of the roller with the annular groove of the outer ring of the disassembly drum.

[0013] Preferably, a horizontal plate is provided at the bottom of the installation cavity; a rotating ring is rotatably installed on the bottom surface of the installation swivel; a pair of No. 2 electric push rods are fixedly connected between the bottom surface of the rotating ring and the top surface of the horizontal plate; a No. 2 driven wheel is fixedly connected to the outer ring of the installation swivel; the inner ring of the No. 2 driven wheel is a metal wheel, and the outer ring of the metal wheel is provided with anti-slip convex teeth; the outer ring of the No. 2 driven wheel is a rubber wheel, and the outer ring of the rubber wheel is provided with anti-slip grooves; the outer ring of the No. 2 driven wheel can be squeezed and contacted with the outer ring of the driving wheel; a new nozzle installation work is realized.

[0014] Preferably, a plurality of slots are formed around the groove of the mounting swivel seat; an annular elastic clip is fixed inside the slot; this is conducive to the installation of a new nozzle.

[0015] Preferably, an end plate is bolted to one end of the strip-shaped shell away from the middle of the laser cutting machine body; a U-shaped frame is fixedly connected to a side of the end plate close to the strip-shaped shell; the top surface of the U-shaped frame is slidably connected to the top surface of the mounting cavity; a plurality of new nozzles are evenly arranged in the middle of the U-shaped frame; a linear slide rail is fixedly connected to the middle of the bottom surface of the mounting cavity; the slider of the linear slide rail is fixedly connected to the bottom surface of the cross plate; guide rails are fixedly connected to both sides of the bottom surface of the mounting cavity; and the two ends of the bottom surface of the cross plate are slidably matched with the guide rails.

[0016] Preferably, a plurality of annular seats are evenly bolted to the middle of the U-shaped frame; a plurality of fixing grooves are arranged around the top and bottom surfaces of the middle of the annular seat; a fixing ring is installed on the top and bottom surfaces of the inner ring of the annular seat; a plurality of inserts are fixed around the outer ring of the fixing ring, and the inserts are engaged with the fixing grooves; a bolt is penetrated in the middle of the fixing groove, and the bolt penetrates the inserts of the outer ring of the fixing ring; a plurality of elastic sheets are fixed around the inner ring of the fixing ring.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The metal sheet laser cutting machine described in the present invention comprises a strip-shaped housing, a driving assembly, a clamping assembly, a disassembly drum and a mounting seat; the damaged nozzle on the laser cutting machine body is inserted into the middle of the top surface of the disassembly drum, and the clamping assembly clamps and fixes the damaged nozzle; the driving assembly drives the disassembly drum to rotate, and drives the damaged nozzle to rotate through the clamping assembly to remove the damaged nozzle; thereafter, the cutting head of the laser cutting machine body is aligned and contacted with the new nozzle on the mounting seat, and at the same time, the driving assembly drives the mounting seat to rotate, driving the new nozzle to rotate, so that the new nozzle is threadedly installed to the bottom of the cutting head of the laser cutting machine body; thereby completing the automatic replacement of the nozzle, reducing the difficulty of the staff in replacing the nozzle, and improving the cutting efficiency of the metal sheet.

[0019] 2. The metal sheet laser cutting machine described in the present invention includes a U-shaped frame, an annular seat, a fixing ring and an elastic sheet; a new nozzle is inserted from the bottom of the annular seat to the middle of the annular seat, and the new nozzle is fixed in the middle of the annular seat by multiple elastic sheets on the inner ring of the fixing ring; after multiple new nozzles are installed, the U-shaped frame is inserted into the installation cavity of the strip outer shell, and the end plate and the strip outer shell are locked and fixed; this facilitates the continuous replacement of nozzles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 is a three-dimensional diagram of a load-bearing plate in the present invention;

[0023] Figure 3 is a three-dimensional diagram of a replacement unit in the present invention;

[0024] Figure 4 It is the internal structure diagram of the strip-shaped housing in the present invention;

[0025] Figure 5 is an exploded view of the replacement unit of the present invention;

[0026] Figure 6 is a three-dimensional diagram of a disassembled drum in the present invention;

[0027] Figure 7 is an exploded view of the disassembled drum in the present invention;

[0028] Figure 8 is a three-dimensional diagram of the drive assembly of the present invention;

[0029] Fig. 9 It is a three-dimensional diagram of installing the swivel seat and the U-shaped frame in the present invention;

[0030] Fig.10 is an exploded view of the installation of the swivel in the present invention;

[0031] Fig.11 is a three-dimensional diagram of the annular seat in the present invention;

[0032] Fig.12 is an exploded view of the annular seat in the present invention;

[0033] In the figure: 1. Laser cutting machine body; 2. Nozzle; 3. Carrying plate; 4. Strip housing; 5. Disassembly chamber; 6. Installation chamber; 7. Driving chamber; 8. Disassembly of rotating drum; 9. Installation of rotating seat; 10. Slide; 11. Clamping block; 12. No. 1 electric push rod; 13. Rotating rod; 14. Face gear; 15. Motor; 16. Gear; 17. Driving wheel; 18. No. 1 driven wheel; 19. Recovery pipe; 20. Rubber buffer sheet ; 21. Rubber strip; 22. Annular air pipe; 23. Air nozzle; 24. Annular groove; 25. Bracket; 26. Roller; 27. Horizontal plate; 28. Rotating ring; 29. ​​No. 2 electric push rod; 30. No. 2 driven wheel; 31. Slot; 32. Annular elastic clip; 33. End plate; 34. U-shaped frame; 35. Linear slide rail; 36. Guide rail; 37. Annular seat; 38. Fixed groove; 39. Fixed ring; 40. Elastic sheet. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] like Figures 1 to 5 As shown, a metal sheet laser cutting machine described in an embodiment of the present invention comprises a laser cutting machine body 1; a nozzle 2 is threadedly installed at the bottom of the cutting head of the laser cutting machine body 1; a carrier plate 3 is fixedly connected to the top surface of one end of the laser cutting machine body 1; a plurality of replacement units are evenly arranged on the top surface of the carrier plate 3; the replacement unit comprises a strip-shaped shell 4 fixedly connected to the top surface of the carrier plate 3; a disassembly cavity 5 is provided inside the end of the strip-shaped shell 4 close to the middle of the laser cutting machine body 1; an installation cavity 6 is provided at the end of the strip-shaped shell 4 away from the middle of the laser cutting machine body 1; the middle top surface of the disassembly cavity 5 and the A circular through groove is provided on the top surface of one end of the installation cavity 6 close to the middle of the laser cutting machine body 1; a driving cavity 7 is provided between the disassembly cavity 5 and the installation cavity 6; a driving assembly is provided inside the driving cavity 7; a disassembly drum 8 is rotatably installed inside the disassembly cavity 5; a clamping assembly is provided on the top of the disassembly drum 8; a mounting swivel seat 9 is provided inside the installation cavity 6; a groove matching the nozzle 2 is provided on the top of the mounting swivel seat 9; a new nozzle 2 is provided in the top groove of the mounting swivel seat 9; the driving assembly can drive the disassembly drum 8 and the mounting swivel seat 9 to rotate;

[0036] During operation, when the nozzle 2 on the laser cutting machine body 1 is damaged, it needs to be replaced; at this time, the damaged nozzle 2 on the laser cutting machine body 1 moves to the top of the carrier plate 3 and is aligned with the circular through groove on the top of the disassembly chamber 5, and the damaged nozzle 2 is lowered so that the damaged nozzle 2 is inserted into the middle of the top surface of the disassembly drum 8, and the clamping assembly clamps and fixes the damaged nozzle 2; the driving assembly drives the disassembly drum 8 to rotate, and drives the damaged nozzle 2 to rotate through the clamping assembly to remove the damaged nozzle 2; thereafter, the cutting head of the laser cutting machine body 1 rises in height and moves to the circular through groove of the installation chamber 6, and then the cutting head of the laser cutting machine body 1 descends in height so that the cutting head of the laser cutting machine body 1 is aligned and contacted with the new nozzle 2 on the installation swivel 9, and at the same time, the driving assembly drives the installation swivel 9 to rotate, driving the new nozzle 2 to rotate, so that the new nozzle 2 is threadedly installed to the bottom of the cutting head of the laser cutting machine body 1; thereby completing the automatic replacement of the nozzle 2, reducing the difficulty of the staff in replacing the nozzle 2, and improving the cutting efficiency of the metal sheet;

[0037] Different replacement units in this embodiment can be equipped with different nozzles 2, so that different nozzles 2 can be replaced according to the different products being processed, thereby increasing the application scope of the laser cutting machine and improving the processing efficiency of the laser cutting machine.

[0038] like Figure 6 to Figure 7 As shown, the clamping assembly includes a plurality of slide grooves 10 arranged around the top surface of the disassembly drum 8; a clamping block 11 is slidably installed inside the slide groove 10; a rubber anti-slip sheet is fixedly connected to a side of the clamping block 11 close to the center of the disassembly drum 8; a plurality of No. 1 electric push rods 12 are fixedly connected around the top surface of the disassembly drum 8; the No. 1 electric push rod 12 corresponds to the slide groove 10; the piston rod of the No. 1 electric push rod 12 is fixedly connected to the clamping block 11;

[0039] During operation, when the damaged nozzle 2 on the laser cutting machine body 1 drops to the center of the top surface of the disassembly drum 8, the damaged nozzle 2 is located at the center position of multiple clamping blocks 11, and the No. 1 electric push rod 12 pushes the clamping block 11 to slide from the inside of the slide groove 10. Multiple clamping blocks 11 clamp and fix the damaged nozzle 2, so that the driving component drives the disassembly drum 8 to rotate, which can drive the damaged nozzle 2 to rotate and disassemble, thereby realizing the automatic disassembly of the damaged nozzle 2.

[0040] like Figures 3 to 8 As shown, the driving assembly includes a rotating rod 13 rotatably installed in the middle of the driving chamber 7; the bottom outer ring of the rotating rod 13 is fixedly connected to a face gear 14; the bottom surface of the driving chamber 7 is fixedly connected to a motor 15; the output shaft of the motor 15 is fixedly connected to a gear 16; the gear 16 is meshed with the face gear 14; the top outer ring of the rotating rod 13 is fixedly connected to a driving wheel 17; the top outer periphery of the disassembling drum 8 is fixedly connected to a number one driven wheel 18; the inner rings of the driving wheel 17 and the number one driven wheel 18 are both metal wheels, and the outer rings of the metal wheels Anti-skid convex teeth are provided; the outer rings of the driving wheel 17 and the No. 1 driven wheel 18 are both rubber wheels, and the outer rings of the rubber wheels are provided with anti-skid patterns; the outer ring of the driving wheel 17 and the outer ring of the No. 1 driven wheel 18 are in extrusion contact; by setting the inner rings of the driving wheel 17 and the No. 1 driven wheel 18 as metal wheels driving the anti-skid convex teeth, and the outer rings as rubber wheels with anti-skid patterns, not only the overall strength of the driving wheel 17 and the No. 1 driven wheel 18 can be improved, but also the transmission stability between the driving wheel 17 and the No. 1 driven wheel 18 can be ensured;

[0041] During operation, the motor 15 drives the gear 16 to rotate, drives the face gear 14 and the rotating rod 13 to rotate, drives the driving wheel 17 to rotate, drives the No. 1 driven wheel 18 to rotate, and drives the disassembly drum 8 to rotate, thereby providing sufficient power for the disassembly of the nozzle 2.

[0042] like Figures 2 to 5 As shown, a recovery pipe 19 is fixedly connected to the bottom of the disassembly chamber 5; the inner circle of the recovery pipe 19 is connected to the inner circle of the disassembly drum 8; the recovery pipe 19 passes through the carrying plate 3; the bottom of the recovery pipe 19 is connected to the recovery box;

[0043] During operation, when the damaged nozzle 2 is removed, the No. 1 electric push rod 12 drives the clamp 11 to reset, so that the clamp 11 is retracted into the interior of the slide groove 10, releasing the damaged nozzle 2, so that the damaged nozzle 2 slides along the inner circle of the disassembly drum 8, and slides into the interior of the recovery box through the recovery pipe 19 for storage, thereby facilitating the staff to recover the damaged nozzle 2.

[0044] like Figures 4 to 7 As shown, a plurality of rubber buffer sheets 20 are fixedly connected around the inner circle of the disassembly drum 8; a plurality of rubber strips 21 are evenly fixedly connected to a side of the rubber buffer sheet 20 close to the center of the disassembly drum 8; a plurality of the rubber buffer sheets 20 and a plurality of the clamping blocks 11 are alternately arranged; a circular air pipe 22 is fixedly connected to the inner top surface of the disassembly chamber 5; the circular air pipe 22 is connected to the air pump through a pipeline; a plurality of air nozzles 23 are arranged around the inner circle of the circular air pipe 22; the air outlet of the air nozzle 23 faces the inside of the disassembly drum 8; the inner circles of the plurality of air nozzles 23 are sleeved on the outer side of the inner circle of the disassembly drum 8;

[0045] During operation, when the damaged nozzle 2 slides downward along the inner circle of the disassembly drum 8, the outer periphery of the nozzle 2 slides in contact with the rubber strip 21 on the rubber buffer sheet 20, which reduces the speed at which the damaged nozzle 2 slides downward, thereby reducing the impact force on the damaged nozzle 2 when it falls, and reducing the possibility of secondary damage to the damaged nozzle 2;

[0046] When the damaged nozzle 2 slides downward along the inner circle of the disassembly drum 8, the air pump pumps gas into the interior of the annular air pipe 22, and then distributes the gas to multiple air nozzles 23. The air nozzles 23 spray air toward the interior of the disassembly drum 8, providing a certain amount of power for the damaged nozzle 2 to fall, thereby reducing the possibility of the nozzle 2 being stuck by the rubber strip 21.

[0047] like Figures 5 to 7 As shown, an annular groove 24 is provided on the middle outer ring of the disassembly drum 8; a plurality of brackets 25 are fixedly connected around the interior of the disassembly cavity 5; a roller 26 is rotatably mounted on one end of the bracket 25 close to the disassembly drum 8; the roller 26 is slidably engaged with the annular groove 24; the disassembly drum 8 is supported by the plurality of brackets 25 and the roller 26, and at the same time, the roller 26 is slidably engaged with the annular groove 24 of the outer ring of the disassembly drum 8, thereby improving the stability of the rotation of the disassembly drum 8.

[0048] like Figure 4 , Figure 5 , Fig. 9 and Fig.10As shown, a horizontal plate 27 is provided at the bottom of the installation cavity 6; a rotating ring 28 is rotatably installed on the bottom surface of the installation rotating seat 9; a pair of No. 2 electric push rods 29 are fixedly connected between the bottom surface of the rotating ring 28 and the top surface of the horizontal plate 27; a No. 2 driven wheel 30 is fixedly connected to the outer ring of the installation rotating seat 9; the inner ring of the No. 2 driven wheel 30 is a metal wheel, and the outer ring of the metal wheel is provided with anti-skid convex teeth; the outer ring of the No. 2 driven wheel 30 is a rubber wheel, and the outer ring of the rubber wheel is provided with anti-skid grooves; the outer ring of the No. 2 driven wheel 30 can be squeezed and contacted with the outer ring of the driving wheel 17;

[0049] During operation, after the damaged nozzle 2 is removed, the cutting head of the laser cutting machine body 1 moves to the circular through groove of the installation cavity 6, and the cutting head of the laser cutting machine body 1 descends into the circular through groove of the installation cavity 6. At this time, the cutting head of the laser cutting machine body 1 is aligned with the new nozzle 2 on the installation swivel 9, and the No. 2 electric push rod 29 pushes the rotating ring 28 and the installation swivel 9 to rise in height, so that the cutting head of the laser cutting machine body 1 contacts the new nozzle 2 on the installation swivel 9. At the same time, the motor 15 drives the gear 16 to rotate, drives the face gear 14 and the rotating rod 13 to rotate, drives the driving wheel 17 to rotate, drives the No. 2 driven wheel 30 to rotate, drives the installation swivel 9 to rotate, and drives the new nozzle 2 to rotate and install to the bottom of the cutting head of the laser cutting machine body 1, thereby realizing the installation of the new nozzle 2.

[0050] like Figures 9 and 10 As shown, a plurality of slots 31 are provided around the groove of the mounting swivel seat 9; an annular elastic clip 32 is fixedly connected to the interior of the slot 31; the new nozzle 2 is clamped and fixed in the groove of the mounting swivel seat 9 by the plurality of annular elastic clips 32, and when the new nozzle 2 is threadedly installed to the bottom of the cutting head of the laser cutting machine body 1, the new nozzle 2 can be detached from between the plurality of annular elastic clips 32; thereby facilitating the installation of the new nozzle 2.

[0051] like Figure 3 , Figure 4 , Figure 5 , Fig. 9 , Fig.11 and Fig.12 As shown, an end plate 33 is bolted to one end of the strip housing 4 away from the middle of the laser cutting machine body 1; a U-shaped frame 34 is fixedly connected to a side of the end plate 33 close to the strip housing 4; the top surface of the U-shaped frame 34 is slidably connected to the top surface of the installation cavity 6; a plurality of new nozzles 2 are evenly arranged in the middle of the U-shaped frame 34; a linear slide rail 35 is fixedly connected to the middle of the bottom surface of the installation cavity 6; the slider of the linear slide rail 35 is fixedly connected to the bottom surface of the cross plate 27; guide rails 36 are fixedly connected to both sides of the bottom surface of the installation cavity 6; the two ends of the bottom surface of the cross plate 27 are slidably matched with the guide rails 36;

[0052] A plurality of annular seats 37 are bolted evenly in the middle of the U-shaped frame 34; a plurality of fixing grooves 38 are formed around the top and bottom surfaces of the middle of the annular seat 37; a fixing ring 39 is installed on the top and bottom surfaces of the inner ring of the annular seat 37; a plurality of inserts are fixedly connected around the outer ring of the fixing ring 39, and the inserts are engaged with the fixing grooves 38; a bolt is penetrated in the middle of the fixing groove 38, and the bolt penetrates the inserts of the outer ring of the fixing ring 39; a plurality of elastic sheets 40 are fixedly connected around the inner ring of the fixing ring 39;

[0053] During operation, a new nozzle 2 is inserted from the bottom of the annular seat 37 to the middle of the annular seat 37, and the new nozzle 2 is fixed to the middle of the annular seat 37 by multiple elastic sheets 40 on the inner circle of the fixing ring 39; after multiple new nozzles 2 are installed, the U-shaped frame 34 is inserted into the installation cavity 6 of the strip housing 4, and the end plate 33 and the strip housing 4 are locked and fixed;

[0054] When a new nozzle 2 needs to be installed, the No. 2 electric push rod 29 drives the rotating ring 28 and the installation rotating seat 9 to descend in height, so that the installation rotating seat 9 descends to the bottom of the new nozzle 2 on the U-shaped frame 34. At this time, the slider on the linear slide rail 35 drives the cross plate 27 to move along the guide rail 36, driving the installation rotating seat 9 to move to the bottom of the new nozzle 2 on the U-shaped frame 34, and the installation rotating seat 9 is aligned with the new nozzle 2. At this time, the No. 2 electric push rod 29 pushes the installation rotating seat 9 to move upward, so that the new nozzle 2 is stuck in the groove of the installation rotating seat 9 and fixed; then, the No. 2 electric push rod 29 drives the installation rotating seat 9 to move downward, and pulls the new nozzle 2 out of the annular seat 37;

[0055] Then, the No. 2 electric push rod 29 pushes the installation swivel seat 9 to adjust the height so that the No. 2 driven wheel 30 is aligned with the driving wheel 17, and the slider on the linear slide rail 35 drives the cross plate 27, the No. 2 electric push rod 29, and the installation swivel seat 9 to move to the circular through groove of the installation cavity 6, so that the No. 2 driven wheel 30 is squeezed and contacted with the driving wheel 17, thereby realizing the work of extracting a new nozzle 2, and then facilitating the continuous replacement of the nozzle 2 for multiple times.

[0056] Working principle: insert the new nozzle 2 from the bottom of the annular seat 37 to the middle of the annular seat 37, and fix the new nozzle 2 in the middle of the annular seat 37 through the multiple elastic sheets 40 on the inner circle of the fixing ring 39; after the multiple new nozzles 2 are installed, insert the U-shaped frame 34 into the installation cavity 6 of the strip housing 4, and lock and fix the end plate 33 and the strip housing 4; and install different new nozzles 2 in different strip housings 4;

[0057] When the nozzle 2 on the laser cutting machine body 1 is damaged, it needs to be replaced; at this time, the damaged nozzle 2 on the laser cutting machine body 1 is moved to the top of the carrier plate 3 and aligned with the circular through groove at the top of the disassembly chamber 5, and the damaged nozzle 2 is lowered so that the damaged nozzle 2 is inserted into the middle of the top surface of the disassembly drum 8. At this time, the damaged nozzle 2 is located at the center of the multiple clamping blocks 11, and the No. 1 electric push rod 12 pushes the clamping block 11 to slide from the inside of the slide groove 10, and the multiple clamping blocks 11 clamp and fix the damaged nozzle 2;

[0058] The motor 15 drives the gear 16 to rotate, drives the face gear 14 and the rotating rod 13 to rotate, drives the driving wheel 17 to rotate, drives the No. 1 driven wheel 18 to rotate, drives the disassembly drum 8 to rotate, drives the damaged nozzle 2 to rotate, and removes the damaged nozzle 2;

[0059] When the damaged nozzle 2 slides downward along the inner circle of the disassembly drum 8, the outer periphery of the nozzle 2 slides and contacts with the rubber strip 21 on the rubber buffer sheet 20. At the same time, the air pump pumps gas into the inside of the annular air pipe 22, and then distributes the gas to multiple air nozzles 23. The air nozzles 23 spray air toward the inside of the disassembly drum 8, providing a certain amount of power for the damaged nozzle 2 to fall, so that the damaged nozzle 2 slides along the inner circle of the disassembly drum 8 and slides into the inside of the recovery box through the recovery pipe 19 for storage;

[0060] At the same time, the No. 2 electric push rod 29 drives the rotating ring 28 and the installation rotating seat 9 to descend in height, so that the installation rotating seat 9 descends to the bottom of the new nozzle 2 on the U-shaped frame 34. At this time, the slider on the linear slide rail 35 drives the cross plate 27 to move along the guide rail 36, driving the installation rotating seat 9 to move to the bottom of the new nozzle 2 on the U-shaped frame 34, and the installation rotating seat 9 is aligned with the new nozzle 2. At this time, the No. 2 electric push rod 29 pushes the installation rotating seat 9 to move upward, so that the new nozzle 2 is stuck in the groove of the installation rotating seat 9 and fixed; then, the No. 2 electric push rod 29 drives the installation rotating seat 9 to move downward, and pulls the new nozzle 2 out of the annular seat 37;

[0061] Then, the No. 2 electric push rod 29 pushes the installation rotating seat 9 to adjust the height, so that the No. 2 driven wheel 30 is aligned with the driving wheel 17, and the slider on the linear slide rail 35 drives the cross plate 27, the No. 2 electric push rod 29, and the installation rotating seat 9 to move to the circular through groove of the installation cavity 6, so that the No. 2 driven wheel 30 is squeezed and contacted with the driving wheel 17;

[0062] Afterwards, the cutting head of the laser cutting machine body 1 rises in height and moves to the circular through groove of the installation cavity 6, and then the cutting head of the laser cutting machine body 1 descends in height so that the cutting head of the laser cutting machine body 1 is aligned and in contact with the new nozzle 2 on the installation swivel 9; the motor 15 drives the gear 16 to rotate, drives the face gear 14 and the rotating rod 13 to rotate, drives the driving wheel 17 to rotate, drives the second driven wheel 30 to rotate, drives the installation swivel 9 to rotate, and drives the new nozzle 2 to rotate and install to the bottom of the cutting head of the laser cutting machine body 1; thereby completing the automatic replacement of the nozzle 2, reducing the difficulty of the staff in replacing the nozzle 2, and improving the cutting efficiency of the metal plate;

[0063] When the nozzle 2 of the laser cutting machine body 1 is not damaged and other nozzles 2 need to be replaced, the nozzle 2 of the laser cutting machine body 1 only needs to be moved to the circular through groove of the installation cavity 6 that stores the same nozzle 2 of the laser cutting machine body 1, and the nozzle 2 of the laser cutting machine body 1 is lowered so that the nozzle 2 of the laser cutting machine body 1 is inserted into the groove of the installation seat 9. At the same time, the driving assembly drives the installation seat 9 to rotate to remove the nozzle 2 of the laser cutting machine body 1; thereafter, the installation cavity 6 equipped with the required nozzle 2 is selected to install the nozzle head 2, so as to facilitate the replacement of different nozzles 2.

[0064] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A metal sheet laser cutting machine, comprising a laser cutting machine body (1); a nozzle (2) is threadedly mounted on the bottom of a cutting head of the laser cutting machine body (1); the characteristics are: A bearing plate (3) is fixedly connected to the top surface of one end of the laser cutting machine body (1); a plurality of replacement units are evenly arranged on the top surface of the bearing plate (3); The replacement unit comprises a strip-shaped housing (4) fixedly connected to the top surface of the carrier plate (3); a disassembly cavity (5) is provided inside one end of the strip-shaped housing (4) close to the middle of the laser cutting machine body (1); an installation cavity (6) is provided at one end of the strip-shaped housing (4) away from the middle of the laser cutting machine body (1); a circular through groove is provided on the middle top surface of the disassembly cavity (5) and the top surface of one end of the installation cavity (6) close to the middle of the laser cutting machine body (1); a drive opening is provided between the disassembly cavity (5) and the installation cavity (6). a moving chamber (7); a driving assembly is arranged inside the driving chamber (7); a disassembly rotating drum (8) is rotatably mounted inside the disassembly chamber (5); a clamping assembly is arranged on the top of the disassembly rotating drum (8); a mounting rotating seat (9) is arranged inside the mounting chamber (6); a groove matching the nozzle (2) is formed on the top of the mounting rotating seat (9); a new nozzle (2) is arranged in the groove on the top of the mounting rotating seat (9); the driving assembly is capable of driving the disassembly rotating drum (8) and the mounting rotating seat (9) to rotate; The clamping assembly comprises a plurality of slide grooves (10) arranged around the top surface of the disassembly rotating cylinder (8); a clamping block (11) is slidably mounted inside the slide groove (10); a rubber anti-slip sheet is fixedly connected to a surface of the clamping block (11) close to the center of the disassembly rotating cylinder (8); a plurality of No. 1 electric push rods (12) are fixedly connected around the top surface of the disassembly rotating cylinder (8); the No. 1 electric push rods (12) correspond to the slide grooves (10); and a piston rod of the No. 1 electric push rod (12) is fixedly connected to the clamping block (11); The driving assembly comprises a rotating rod (13) rotatably mounted in the middle of the driving chamber (7); a face gear (14) is fixedly connected to the bottom outer ring of the rotating rod (13); a motor (15) is fixedly connected to the bottom surface of the driving chamber (7); an output shaft of the motor (15) is fixedly connected to a gear (16); the gear (16) is meshed with the face gear (14); a driving wheel (17) is fixedly connected to the top outer ring of the rotating rod (13); a first driven wheel (18) is fixedly connected to the top outer periphery of the disassembling rotating drum (8); the inner rings of the driving wheel (17) and the first driven wheel (18) are both metal wheels, and the outer rings of the metal wheels are provided with anti-skid convex teeth; the outer rings of the driving wheel (17) and the first driven wheel (18) are both rubber wheels, and the outer rings of the rubber wheels are provided with anti-skid grooves; the outer ring of the driving wheel (17) and the outer ring of the first driven wheel (18) are in extrusion contact with each other; A transverse plate (27) is provided at the bottom of the installation cavity (6); a rotating ring (28) is rotatably installed on the bottom surface of the installation rotating seat (9); a pair of No. 2 electric push rods (29) are fixedly connected between the bottom surface of the rotating ring (28) and the top surface of the transverse plate (27); a No. 2 driven wheel (30) is fixedly connected to the outer ring of the installation rotating seat (9); the inner ring of the No. 2 driven wheel (30) is a metal wheel, and the outer ring of the metal wheel is provided with anti-skid convex teeth; the outer ring of the No. 2 driven wheel (30) is a rubber wheel, and the outer ring of the rubber wheel is provided with anti-skid grooves; the outer ring of the No. 2 driven wheel (30) can be pressed and contacted with the outer ring of the driving wheel (17).

2. The metal sheet laser cutting machine according to claim 1, characterized in that: A recovery pipe (19) is fixedly connected to the bottom of the disassembly chamber (5); the inner ring of the recovery pipe (19) is connected to the inner ring of the disassembly drum (8); the recovery pipe (19) passes through the supporting plate (3); and the bottom of the recovery pipe (19) is connected to a recovery box.

3. The metal sheet laser cutting machine according to claim 1, characterized in that: A plurality of rubber buffer sheets (20) are fixedly connected around the inner ring of the disassembly rotating cylinder (8); a plurality of rubber strips (21) are evenly fixedly connected to a surface of the rubber buffer sheet (20) close to the center of the disassembly rotating cylinder (8); a plurality of the rubber buffer sheets (20) and a plurality of the clamping blocks (11) are arranged alternately; an annular air pipe (22) is fixedly connected to the inner top surface of the disassembly chamber (5); the annular air pipe (22) is connected to an air pump through a pipeline; a plurality of air nozzles (23) are arranged around the inner ring of the annular air pipe (22); the air outlet of the air nozzle (23) faces the inside of the disassembly rotating cylinder (8); and the inner rings of the plurality of air nozzles (23) are sleeved on the outside of the inner ring of the disassembly rotating cylinder (8).

4. The metal sheet laser cutting machine according to claim 1, characterized in that: An annular groove (24) is provided on the middle outer ring of the disassembly rotating drum (8); a plurality of brackets (25) are fixedly connected around the interior of the disassembly cavity (5); a roller (26) is rotatably mounted on one end of the bracket (25) close to the disassembly rotating drum (8); and the roller (26) is slidably engaged with the annular groove (24).

5. The metal sheet laser cutting machine according to claim 1, characterized in that: A plurality of clamping grooves (31) are formed around the groove of the mounting swivel seat (9); an annular elastic clip (32) is fixedly connected inside the clamping groove (31).

6. The metal sheet laser cutting machine according to claim 5, characterized in that: An end plate (33) is bolted to one end of the strip-shaped housing (4) away from the middle of the laser cutting machine body (1); a U-shaped frame (34) is fixedly connected to a surface of the end plate (33) close to the strip-shaped housing (4); the top surface of the U-shaped frame (34) is slidably connected to the top surface of the installation cavity (6); a plurality of new nozzles (2) are evenly arranged in the middle of the U-shaped frame (34); a linear slide rail (35) is fixedly connected to the middle of the bottom surface of the installation cavity (6); a slider of the linear slide rail (35) is fixedly connected to the bottom surface of the transverse plate (27); guide rails (36) are fixedly connected to both sides of the bottom surface of the installation cavity (6); and both ends of the bottom surface of the transverse plate (27) are slidably matched with the guide rails (36).

7. The metal sheet laser cutting machine according to claim 6, characterized in that: A plurality of annular seats (37) are bolted evenly in the middle of the U-shaped frame (34); a plurality of fixing grooves (38) are formed around the top and bottom surfaces of the middle of the annular seat (37); a fixing ring (39) is installed on the top and bottom surfaces of the inner ring of the annular seat (37); a plurality of inserts are fixedly connected around the outer ring of the fixing ring (39), and the inserts are engaged with the fixing grooves (38); a bolt is provided through the middle of the fixing groove (38), and the bolt passes through the inserts of the outer ring of the fixing ring (39); a plurality of elastic sheets (40) are fixedly connected around the inner ring of the fixing ring (39).

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