CN213289084U

CN213289084U - A high-efficient optic fibre laser cutting machine for sheet metal

Info

Publication number: CN213289084U
Application number: CN202022031856.9U
Authority: CN
Inventors: 汪宏成
Original assignee: Taicang Lishan Machinery Co ltd
Current assignee: Taicang Lishan Machinery Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-05-28
Anticipated expiration: 2030-09-15

Abstract

A high-efficiency optical fiber laser cutting machine for metal plates comprises a laser cutting device and a supporting device, wherein the laser cutting device is arranged on the supporting device; the laser cutting device comprises a Z-axis sliding table, an installation support, a laser, an optical fiber connecting block and a cutting head, wherein the Z-axis sliding table is installed on a supporting device, two sliding table rolling guide rails are arranged on the front side surface of the Z-axis sliding table in the vertical direction, rollers matched with the sliding table rolling guide rails are arranged on the rear side surface of the installation support, and the Z-axis movement of the installation support on the Z-axis sliding table in the Z direction is realized through a Z-axis component; the laser, the optical fiber connecting block and the cutting head are sequentially and fixedly connected from top to bottom and are arranged on the front side surface of the Z-axis sliding table through the mounting support. A high-efficient optic fibre laser cutting machine for sheet metal, structural design is reasonable, the motion flexibility is high, overall stability is good, the shock resistance can be good and sensitivity is high, application prospect is extensive.

Description

A high-efficient optic fibre laser cutting machine for sheet metal

Technical Field

The utility model relates to a laser cutting machine technical field, concretely relates to a high-efficient optic fibre laser cutting machine for sheet metal.

Background

At present, the laser processing technology is widely applied to machinery, automobile industry and aerospaceAnd light textile, food medical treatment and other fields. Laser cutting techniques have also found wider application in laser machining, exceeding 70% of the laser machining industry. The laser cutting utilizes the laser beam with high power density generated after being focused to form a plurality of fine and high-energy-density light spots on the surface of a processing object under the control of a numerical control system, and the laser power density of the light spots which can be focused is as high as 106-109W/cm²The focal spot is positioned near the surface to be processed, so that the workpiece material is instantly melted, gasified, ablated or reaches the burning point, and simultaneously, the gasified metal is blown away by matching with the auxiliary cutting gas.

In recent years, the number of laser cutting machines worldwide has increased at a rate approaching 1000 per year, and the industry has also sold a total of over 90 billion dollars, with laser cutting equipment in the U.S. and japan having a market share of about 25%. Due to the increase of laser cutting power, the enhancement of mechanical equipment flexibility and the improvement of processing beam stability, besides processing metal, various inorganic materials are also processed by laser.

With the gradual popularization of laser cutting machines and the continuous progress of science and technology, people have higher and higher requirements on the laser cutting machines, and the laser cutting machines are required to further improve the cutting efficiency, reduce the standby time, expand the application range, reduce the running cost and the like, and improve the performance of the laser cutting machines. In addition, because the laser cutting machine has high processing speed, the laser cutting machine has higher requirements on the structural size and the movement flexibility of the laser cutting machine. The laser cutting machine in the prior art has certain defects in motion performance and dynamic characteristics due to the fact that the laser cutting machine does not have reasonable structural design, and can have certain influences on precision, quality and efficiency of products in the production process.

Chinese patent application No. cn201910608327.x discloses an optic fibre laser cutting machine, which comprises a bod, the operation panel is installed to the organism upside, has solved among the prior art laser cutting machine and can only carry out linear cutting and handle, can not carry out the cyclotomy to metal sheet or sheetmetal and handle, is convenient for carry out quick location to metal sheet or sheetmetal moreover and handles, has reduced laser cutting machine's the problem of cutting efficiency, does not improve laser cutting machine's precision, quality, efficiency.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome not enough above, the utility model aims at providing a high-efficient optic fibre laser cutting machine for sheet metal, structural design is reasonable, and the motion flexibility is high, and overall stability is good, and the anti vibration performance is good and sensitivity is high, and application prospect is extensive.

The technical scheme is as follows: a high-efficiency optical fiber laser cutting machine for metal plates comprises a laser cutting device and a supporting device, wherein the laser cutting device is arranged on the supporting device; the laser cutting device comprises a Z-axis sliding table, an installation support, a laser, an optical fiber connecting block and a cutting head, wherein the Z-axis sliding table is installed on a supporting device, two sliding table rolling guide rails are arranged on the front side surface of the Z-axis sliding table in the vertical direction, rollers matched with the sliding table rolling guide rails are arranged on the rear side surface of the installation support, and the Z-axis movement of the installation support on the Z-axis sliding table in the Z direction is realized through a Z-axis component; the laser, the optical fiber connecting block and the cutting head are sequentially and fixedly connected from top to bottom and are arranged on the front side surface of the Z-axis sliding table through the mounting support, the laser is fixedly arranged above the mounting support, the optical fiber connecting block is arranged in the mounting support, the cutting head is positioned below the mounting support, and the cutting head moves in the Z direction through the mounting support; the cutting head includes alignment part, focus subassembly, protection mirror box, sensor, cutting torch, laser instrument, optic fibre connecting block, alignment part, focus subassembly, protection mirror box, sensor, cutting torch are from last to lower fixed connection in proper order.

A high-efficient optic fibre laser cutting machine for sheet metal, structural design is reasonable, strutting arrangement's effect carries out the bearing for laser cutting device, through the installation support set up with the slip table roll rail matched with gyro wheel of Z axle slip table, laser instrument, cutting head realize at the reciprocal linear motion of Z direction, up-and-down motion promptly, the convenience is cut the operation to sheet metal.

The laser cutting device has the working principle as follows: the optical fiber emitted by the laser is guided into the interface of the cutting head through the optical fiber connecting block, wherein the collimating assembly of the cutting head converges the divergent light from the optical fiber and straightens or collimates the divergent light, and the collimating assembly further comprises a collimation centering part and a water cooling part; the focusing assembly focuses the collimated parallel laser beams to cut a workpiece, and the focus position can be changed through the focusing part of the focusing assembly so as to meet the requirements of cutting plates with different materials and different thicknesses; the protective lens box is used for isolating the outside from the light path inside the cutting head, ensuring the light path sealing, preventing dust and impurities from entering the light path and prolonging the service life of the cutting head; the sensor is used for being in signal connection with a control box of the laser cutting device to transmit data in real time, and the distance between the cutting head and the surface of the metal plate can be kept stable for a long time and reliably through the control box, so that the optimal cutting quality is guaranteed; the cutting nozzle is arranged at the bottom end of the cutting head and is a discharge passage for laser beams and auxiliary gas, and the auxiliary gas forms high-speed airflow after passing through an inner cavity of the cutting nozzle to blow away molten materials so as to achieve the purpose of cutting.

Further, in the efficient optical fiber laser cutting machine for metal plates, the supporting device comprises a left frame, a right frame, a workbench, a longitudinal beam and a cross beam, and the left frame and the right frame are connected through the connecting plate; the workbench is horizontally arranged above the connecting plate, and two ends of the workbench are respectively connected with the middle parts of the inner sides of the left frame and the right frame; the longitudinal beam is horizontally arranged above the workbench, and two ends of the longitudinal beam are respectively fixed at the upper ends of the left frame and the right frame; the transverse beam is hung below the longitudinal beam and is perpendicular to the longitudinal beam.

Further, foretell a high-efficient optic fibre laser cutting machine for sheet metal, left side frame, right frame inboard are provided with left step, right step respectively, install left rolling guide, right rolling guide on left side step, the right step face respectively, the workstation is installed on left side rolling guide, the right rolling guide, the bottom of workstation left and right sides is provided with respectively with left rolling guide, right rolling guide matched with gyro wheel to through X axle component one the motion of workstation in the X direction has been realized.

Through the bottom setting of the workstation left and right sides with left rolling guide, right rolling guide matched with gyro wheel, the reciprocating linear motion in the X direction is realized to the workstation, has made things convenient for sheet metal's material loading, unloading, and X axle component is power device.

Furthermore, according to the efficient optical fiber laser cutting machine for the metal plate, the longitudinal beam rolling guide rails are arranged between the longitudinal beam and the cross beam, the number of the longitudinal beam rolling guide rails is two, the upper end surface of the cross beam is provided with the rollers matched with the longitudinal beam rolling guide rails, and the motion of the cross beam on the longitudinal beam in the Y direction is realized through the Y-axis component.

Through the rollers which are arranged on the upper end face of the cross beam and matched with the longitudinal beam rolling guide rail, the cross beam realizes the reciprocating linear motion in the Y direction on the longitudinal beam, so that the reciprocating linear motion of the laser cutting device in the Y direction is realized. And in the course of working, the longeron does not participate in the motion, and the effect of longeron is for the crossbeam and depend on each part on the crossbeam and carry out direct bearing.

Further, foretell a high-efficient optic fibre laser cutting machine for sheet metal, crossbeam front side parallel arrangement has two crossbeam rolling guide, Z axle slip table towards crossbeam rolling guide's one side be provided with crossbeam rolling guide matched with gyro wheel to through X axle subassembly two realized the motion of Z axle slip table in the X direction.

Through the roller matched with the cross beam rolling guide rail arranged on the laser cutting device, the laser cutting device realizes the reciprocating linear motion in the X direction. The utility model discloses all select rolling guide because rolling guide coefficient of friction is less, and quiet, the difference of kinetic friction coefficient is also very little, therefore moves nimble, is difficult to appear the phenomenon of crawling. Secondly, the positioning accuracy of the rolling guide rail is high, the repeated positioning error is about 0.1-0.2 mu m, the repeated positioning error is about 1/50 of that of the sliding guide rail, the rolling guide rail has smoother motion, and the noise is smaller. Because rolling friction is used, the abrasion of the cross beam is small, the service life is long, the lubrication is convenient, but the shock resistance of the rolling guide rails is poor, so that the two rolling guide rails are selected together to guide the cross beam and reinforce the shock resistance of the bearing, and the precision of relative movement is ensured.

Wherein, X axle part I, X axle part two, Y axle part, Z axle part are common structure among the prior art, and X axle part, Y axle part, Z axle part all comprise parts such as servo motor, motor cabinet, guide rail slider, shaft coupling, lead screw, screw nut seat, bearing frame, bearing plate, give unnecessary detail here, do not influence the utility model discloses technical scheme's realization.

Furthermore, in the efficient optical fiber laser cutting machine for metal plates, the four corners of the bottom of the left frame and the four corners of the bottom of the right frame are respectively provided with the shock absorbers.

Install the shock absorber in the four corners of left side frame, right side frame bottom, can increase a holistic stability of high-efficient optic fibre laser cutting machine for sheet metal, can also the fixed station, make it not take place to remove and influence the machining precision in the course of working.

Further, the vibration absorber comprises a support, a mass block, a first metal mesh rubber, a second metal mesh rubber, a screw and a nut; the support, the first wire mesh rubber, the mass block and the second wire mesh rubber are sequentially arranged from bottom to top; the screw penetrates through the support, the first metal mesh rubber, the mass block and the second metal mesh rubber, and a nut is arranged above the screw.

Further, in the efficient optical fiber laser cutting machine for metal plates, the upper end and the lower end of the first wire mesh rubber are provided with the first protective shell; the upper end and the lower end of the second metal wire mesh rubber are provided with a second protective shell; and a gasket is arranged at the joint of the screw and the bracket.

The vibration absorber is composed of a support, a mass block, a protective shell, a bolt, a nut, a pair of wire mesh rubbers and the like. The support is used for connecting and fixing other components of the vibration absorber, the protective shell can provide supporting and protecting effects for the first metal mesh rubber and the second metal mesh rubber, the first metal mesh rubber and the second metal mesh rubber are organically combined into a whole, the bolt penetrates through the damping mechanism, and the relative pre-tightening amount of the first metal mesh rubber and the second metal mesh rubber can be controlled by adjusting the bolt and the nut. The vibration absorber is of a symmetrical structure, bidirectional vibration absorption in the axial direction can be achieved by the vibration absorber, when the wire mesh rubber I and the wire mesh rubber II work and are excited by external vibration and the vibration absorbing mechanism has a certain pre-tightening amount, the upper layer of wire mesh rubber I and the lower layer of wire mesh rubber II both bear pressure, so that the vibration absorber can bear periodic tension and compression loads, and the stability and the service life of the efficient optical fiber laser cutting machine for metal plates are improved.

Further, in the efficient optical fiber laser cutting machine for metal plates, the left frame, the right frame and the connecting plate are of a closed box-shaped structure formed by welding steel plates and section steel; the workbench is composed of a plurality of zigzag plates with parallel narrow edges, and a plurality of rib plates parallel to the wide edges of the workbench are arranged below the zigzag plates.

The left frame, the right frame and the connecting plates for connection on the left side and the right side form a main supporting part, and a closed box type structure formed by welding steel plates and section steel is adopted, so that the steel plate type vibration damping device has the remarkable advantages of reducing weight and increasing rigidity, improves the natural frequency of each component and further effectively inhibits the occurrence of resonance.

Since laser cutting is a processing mode of converting laser into heat energy, metal on a worktable surface can be melted while a metal plate is cut, so that the contact between the worktable and the metal plate is reduced as much as possible, and the function of supporting and processing the metal plate is achieved. Workstation, adopt a plurality of zigzag panel parallel with the narrow limit as table surface's main part for the workstation carries out the point contact with processing sheet metal, reduces area of contact, simultaneously in order to guarantee rigidity, add a plurality of gussets parallel with the workstation broadside come the bearing.

The utility model has the advantages that:

(1) the high-efficiency optical fiber laser cutting machine for metal plates has reasonable structural design, adopts the beam inverted structure, has good openness, and has faster moving speed and more stable operation compared with the traditional cantilever type structure;

(2) the high-efficiency optical fiber laser cutting machine for the metal plates has high motion flexibility, can realize the movement along X, Y, Z three linear motion coordinates, realizes the laser cutting processing of various metal plates, and improves the processing precision of the laser cutting processing of the metal plates;

(3) a high-efficient optic fibre laser cutting machine for sheet metal, overall stability is good, the shock resistance can be good and sensitivity is high, application prospect is extensive.

Drawings

Fig. 1 is a schematic view of the overall structure of the high-efficiency optical fiber laser cutting machine for metal plates according to the present invention;

fig. 2 is a schematic structural view of a laser cutting device of the high-efficiency fiber laser cutting machine for metal plates according to the present invention;

FIG. 3 is a schematic structural diagram of a shock absorber of the high-efficiency fiber laser cutting machine for metal plates according to the present invention;

in the figure: the device comprises a laser cutting device 1, a Z-axis sliding table 11, a sliding table rolling guide rail 111, a mounting support 12, a laser 13, an optical fiber connecting block 14, a cutting head 15, an alignment component 151, a focusing assembly 152, a protective mirror box 153, a sensor 154, a cutting nozzle 155, a supporting device 2, a left frame 21, a left step 211, a left rolling guide rail 212, a right rolling guide rail 213, a right frame 22, a right step 221, a workbench 23, a sawtooth-shaped plate 231, rib plates 232, longitudinal beams 24, a longitudinal beam rolling guide rail 241, cross beams 25, a cross beam rolling guide rail 251, a connecting plate 26, a vibration absorber 27, a bracket 271, a mass 272, a first metal wire mesh rubber 273, a second metal wire mesh rubber 274, a screw 275, a nut 276, a first protective shell 277, a second.

Detailed Description

The invention will be further elucidated with reference to the accompanying figures 1-3 and the specific embodiments.

The efficient optical fiber laser cutting machine for the metal plate material with the structure shown in fig. 1 and 2 comprises a laser cutting device 1 and a supporting device 2, wherein the laser cutting device 1 is installed on the supporting device 2; the laser cutting device 1 comprises a Z-axis sliding table 11, an installation support 12, a laser 13, an optical fiber connecting block 14 and a cutting head 15, wherein the Z-axis sliding table 11 is installed on a supporting device 2, two sliding table rolling guide rails 111 are vertically arranged on the front side surface of the Z-axis sliding table 11, a roller matched with the sliding table rolling guide rails 111 is arranged on the rear side surface of the installation support 12, and the Z-axis movement of the installation support 12 on the Z-axis sliding table 11 is realized through a Z-axis component; the laser 13, the optical fiber connecting block 14 and the cutting head 15 are sequentially and fixedly connected from top to bottom and are installed on the front side surface of the Z-axis sliding table 11 through the installation support 12, the laser 13 is fixedly installed above the installation support 12, the optical fiber connecting block 14 is installed in the installation support 12, the cutting head 15 is located below the installation support 12, and the cutting head 15 moves in the Z direction through the installation support 12; the cutting head 15 comprises a collimation part 151, a focusing component 152, a protective mirror box 153, a sensor 154 and a cutting nozzle 155, and the laser 13, the optical fiber connecting block 14, the collimation part 151, the focusing component 152, the protective mirror box 153, the sensor 154 and the cutting nozzle 155 are fixedly connected from top to bottom in sequence.

In addition, the supporting device 2 comprises a left frame 21, a right frame 22, a workbench 23, longitudinal beams 24 and cross beams 25, wherein the left frame 21 and the right frame 22 are connected through a connecting plate 26; the workbench 23 is horizontally arranged above the connecting plate 26, and two ends of the workbench are respectively connected with the middle parts of the inner sides of the left frame 21 and the right frame 22; the longitudinal beam 24 is horizontally arranged above the workbench 23, and two ends of the longitudinal beam are respectively fixed at the upper ends of the left frame 21 and the right frame 22; the cross beam 25 is hung below the longitudinal beam 24, and the cross beam 25 is perpendicular to the longitudinal beam 24.

The inner sides of the left frame 21 and the right frame 22 are respectively provided with a left step 211 and a right step 221, the surfaces of the left step 211 and the right step 221 are respectively provided with a left rolling guide rail 212 and a right rolling guide rail 213, the workbench 23 is arranged on the left rolling guide rail 212 and the right rolling guide rail 213, the bottoms of the left side and the right side of the workbench 23 are respectively provided with rollers matched with the left rolling guide rail 212 and the right rolling guide rail 213, and the movement of the workbench 23 in the X direction is realized through a first X shaft component.

In addition, a longitudinal beam rolling guide 241 is arranged between the longitudinal beam 24 and the transverse beam 25, two longitudinal beam rolling guides 241 are arranged, the upper end surface of the transverse beam 25 is provided with a roller matched with the longitudinal beam rolling guide 241, and the movement of the transverse beam 25 on the longitudinal beam 24 in the Y direction is realized through a Y-axis component.

In addition, two cross beam rolling guide rails 251 are arranged in parallel on the front side of the cross beam 25, a roller matched with the cross beam rolling guide rails 251 is arranged on one surface, facing the cross beam rolling guide rails 251, of the Z-axis sliding table 11, and the movement of the Z-axis sliding table 11 in the X direction is realized through an X-axis component two.

Further, four corners of the bottom of the left frame 21 and the right frame 22 are respectively provided with a shock absorber 27.

Further, as shown in fig. 3, the damper 27 includes a bracket 271, a mass 272, a first wire mesh rubber 273, a second wire mesh rubber 274, a screw 275, and a nut 276; the support 271, the first wire mesh rubber 273, the mass block 272 and the second wire mesh rubber 274 are sequentially arranged from bottom to top; the screw 275 penetrates through the bracket 271, the first wire mesh rubber 273, the mass 272 and the second wire mesh rubber 274, and a nut 276 is arranged above the screw 275.

Further, a first protective shell 277 is arranged at the upper end and the lower end of the first wire mesh rubber 273; a second protective shell 278 is arranged at the upper end and the lower end of the second wire mesh rubber 274; the joint of the screw 275 and the bracket 271 is provided with a gasket 279.

Further, as shown in fig. 1, the left frame 21, the right frame 22 and the connecting plate 26 are closed box-shaped structures formed by welding steel plates and section steel; the workbench 23 is composed of a plurality of zigzag plates 231 with parallel narrow edges, and a plurality of rib plates 232 parallel to the wide edges of the workbench 23 are arranged below the zigzag plates 231.

Examples

The structural basis is as shown in FIGS. 1 to 3.

A high-efficient optic fibre laser cutting machine for sheet metal, laser cutting device 1, the theory of operation as follows: an optical fiber emitted by a laser 13 is guided into an interface of a cutting head 15 through an optical fiber connecting block 14, wherein a collimation assembly 151 of the cutting head 15 converges divergent light from the optical fiber and straightens or collimates the divergent light, and the collimation assembly 151 further comprises a collimation centering part and a water cooling part; the focusing component 152 focuses the collimated parallel laser beams to cut a workpiece, and the focal position can be changed through the focusing part of the focusing component 152 so as to meet the requirements of cutting plates with different materials and different thicknesses; the protective lens box 153 is used for isolating the outside from the light path inside the cutting head, ensuring the light path sealing, preventing dust and impurities from entering the light path, and prolonging the service life of the cutting head 15; the sensor 154 is used for signal connection with a control box (not shown) of the laser cutting device 1, data is transmitted in real time, and the distance between the cutting head and the surface of the metal plate can be kept stable for a long time and reliably through the control box, so that the best cutting quality is ensured; the cutting torch 155 is installed at the bottom end of the cutting head 15 and is a discharge passage for the laser beam and the auxiliary gas, and the auxiliary gas forms a high-speed gas flow after passing through the inner cavity of the cutting torch to blow away the molten material, thereby achieving the purpose of cutting.

A high-efficient optic fibre laser cutting machine for sheet metal, structural design is reasonable, strutting arrangement 2's effect carries out the bearing for laser cutting device 1, strutting arrangement 2 adopts the hanging-upside-down structure of crossbeam, the opening is good, drive power action point is located the crossbeam focus, does not have additional moment basically, has higher drive efficiency and more steady operational capability.

When the cutting machine is used, a metal plate to be cut is placed on the workbench 23, and the cutting head 15 realizes reciprocating linear motion in the Z direction, namely up-and-down motion, through the roller which is arranged on the mounting support 12 and is matched with the sliding table rolling guide rail 111 of the Z-axis sliding table 11, so that the metal plate can be conveniently cut; the bottom parts of the left side and the right side of the workbench 23 are provided with the rollers which are matched with the left rolling guide rail 212 and the right rolling guide rail 213, so that the workbench 23 realizes reciprocating linear motion in the X direction, and the metal plates are convenient to feed and discharge; the cross beam 25 realizes the reciprocating linear motion in the Y direction on the longitudinal beam 24 through the rollers which are arranged on the upper end surface of the cross beam 25 and are matched with the longitudinal beam rolling guide rail 241, so that the reciprocating linear motion of the laser cutting device 1 in the Y direction is realized; the laser cutting device 1 realizes the reciprocating linear motion in the X direction through the roller which is arranged on the laser cutting device 1 and is matched with the beam rolling guide rail 251.

By last obtaining, a high-efficient optic fibre laser cutting machine for sheet metal, can realize moving along the three rectilinear motion coordinate of X, Y, Z, realize different sheet metal's laser cutting, improved sheet metal laser cutting's machining precision.

Wherein, the utility model discloses all select the rolling guide because rolling guide coefficient of friction is less, and quiet, the difference of kinetic friction coefficient is also very little, therefore the motion is nimble, is difficult to appear the phenomenon of crawling. Secondly, the positioning accuracy of the rolling guide rail is high, the repeated positioning error is about 0.1-0.2 mu m, the repeated positioning error is about 1/50 of that of the sliding guide rail, the rolling guide rail has smoother motion, and the noise is smaller. Because rolling friction is used, the abrasion of the cross beam is small, the service life is long, the lubrication is convenient, but the shock resistance of the rolling guide rails is poor, so that the two rolling guide rails are selected together to guide the cross beam and reinforce the shock resistance of the bearing, and the precision of relative movement is ensured.

Further, install shock absorber 27 in the four corners of left side frame 21, right side frame 22 bottom, can increase a high-efficient optic fibre laser cutting machine holistic stability for sheet metal can also the fixed station, make it not take place to remove and influence the machining precision in the course of working.

Further, the damper 27 is composed of a bracket 271, a mass 272, a first protective shell 277, a second protective shell 278, a screw 275, a nut 276, a pair of wire mesh rubbers 273, a pair of wire mesh rubbers 274, and the like. The support 271 is used for connecting and fixing other components of the damper 27, the first protective shell 277 and the second protective shell 278 can provide supporting and protecting effects for the first wire mesh rubber 273 and the second wire mesh rubber 274, the first wire mesh rubber 273 and the second wire mesh rubber 274 are organically combined into a whole, the screw 275 penetrates through the damper 27, and the relative pre-tightening amount of the first wire mesh rubber 273 and the second wire mesh rubber 274 can be controlled through adjusting the screw 275 and the nut 276.

The vibration damper 27 is of a symmetrical structure, so that bidirectional vibration damping in the axial direction of the vibration damper 27 can be realized, when the first wire mesh rubber 273 and the second wire mesh rubber 274 are excited by external vibration during working and the vibration damper 27 has a certain pre-tightening amount, the two first wire mesh rubber 273 and the two second wire mesh rubber 274 on the upper layer and the lower layer bear pressure, so that the vibration damper 27 can bear periodic tension and compression loads, and the stability and the service life of the efficient beveling machine for beveling metal pipelines are improved.

Furthermore, the left frame 21, the right frame 22 and the connecting plate 26 for connection at the left and right sides form a main supporting part, and a closed box type structure formed by welding steel plates and section steel is adopted, so that the steel plate and the steel plate have the remarkable advantages of reducing weight and increasing rigidity, and the natural frequency of each component is improved, thereby effectively inhibiting the occurrence of resonance.

Since the laser cutting process is a process of converting laser into heat energy, it may melt the metal on the work table while cutting the metal plate, so as to minimize the contact between the work table 23 and the metal plate and to support the metal plate. Workstation 23, adopt a plurality of zigzag panel 231 parallel with the narrow limit as the main part of workstation 23 mesa for workstation 23 carries out the point contact with processing sheet metal, reduces area of contact, simultaneously in order to guarantee rigidity, add a plurality of gusset 232 parallel with the workstation 23 broadside come the bearing.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.

In addition, the embodiments of the present invention can be arbitrarily combined with each other, and the same shall be regarded as the disclosure of the present invention as long as the idea of the present invention is not violated.

Claims

1. The efficient optical fiber laser cutting machine for the metal plate is characterized by comprising a laser cutting device (1) and a supporting device (2), wherein the laser cutting device (1) is installed on the supporting device (2); the laser cutting device (1) comprises a Z-axis sliding table (11), an installation support (12), a laser (13), an optical fiber connecting block (14) and a cutting head (15), wherein the Z-axis sliding table (11) is installed on the supporting device (2), two sliding table rolling guide rails (111) are arranged on the front side surface of the Z-axis sliding table (11) in the vertical direction, rollers matched with the sliding table rolling guide rails (111) are arranged on the rear side surface of the installation support (12), and the Z-direction movement of the installation support (12) on the Z-axis sliding table (11) is realized through a Z-axis component; the laser device (13), the optical fiber connecting block (14) and the cutting head (15) are sequentially and fixedly connected from top to bottom and are installed on the front side surface of the Z-axis sliding table (11) through an installation support (12), the laser device (13) is fixedly installed above the installation support (12), the optical fiber connecting block (14) is installed in the installation support (12), the cutting head (15) is located below the installation support (12), and the cutting head (15) moves in the Z direction through the installation support (12); the cutting head (15) comprises a collimation part (151), a focusing assembly (152), a protective lens box (153), a sensor (154) and a cutting nozzle (155), and the laser (13), the optical fiber connecting block (14), the collimation part (151), the focusing assembly (152), the protective lens box (153), the sensor (154) and the cutting nozzle (155) are sequentially and fixedly connected from top to bottom.

2. The efficient fiber laser cutting machine for metal sheets according to claim 1, wherein the supporting device (2) comprises a left frame (21), a right frame (22), a workbench (23), longitudinal beams (24) and cross beams (25), wherein the left frame (21) and the right frame (22) are connected through a connecting plate (26); the workbench (23) is horizontally arranged above the connecting plate (26), and two ends of the workbench are respectively connected with the middle parts of the inner sides of the left rack (21) and the right rack (22); the longitudinal beam (24) is horizontally arranged above the workbench (23), and two ends of the longitudinal beam are respectively fixed at the upper ends of the left frame (21) and the right frame (22); the transverse beam (25) is hung below the longitudinal beam (24), and the transverse beam (25) and the longitudinal beam (24) are arranged vertically.

3. The efficient fiber laser cutting machine for metal plates according to claim 2, wherein a left step (211) and a right step (221) are respectively arranged on the inner sides of the left frame (21) and the right frame (22), a left rolling guide rail (212) and a right rolling guide rail (213) are respectively arranged on the surfaces of the left step (211) and the right step (221), the workbench (23) is arranged on the left rolling guide rail (212) and the right rolling guide rail (213), rollers matched with the left rolling guide rail (212) and the right rolling guide rail (213) are respectively arranged on the bottoms of the left side and the right side of the workbench (23), and the workbench (23) moves in the X direction through the first X-axis component.

4. The high-efficiency fiber laser cutting machine for metal plates according to claim 3, wherein a longitudinal beam rolling guide rail (241) is arranged between the longitudinal beam (24) and the transverse beam (25), the number of the longitudinal beam rolling guide rails (241) is two, the upper end face of the transverse beam (25) is provided with a roller matched with the longitudinal beam rolling guide rail (241), and the Y-direction movement of the transverse beam (25) on the longitudinal beam (24) is realized through a Y-axis component.

5. The high-efficiency optical fiber laser cutting machine for metal plates according to claim 3, wherein two beam rolling guide rails (251) are arranged in parallel on the front side of the beam (25), a roller matched with the beam rolling guide rails (251) is arranged on one surface, facing the beam rolling guide rails (251), of the Z-axis sliding table (11), and the movement of the Z-axis sliding table (11) in the X direction is realized through an X-axis component II.

6. The high-efficiency fiber laser cutting machine for metal plates according to claim 2, wherein four corners of the bottom of the left frame (21) and the right frame (22) are respectively provided with a shock absorber (27).

7. The high-efficiency fiber laser cutting machine for metal plates according to claim 6, wherein the vibration damper (27) comprises a bracket (271), a mass (272), a first wire mesh rubber (273), a second wire mesh rubber (274), a screw (275), a nut (276); the support (271), the first wire mesh rubber (273), the mass block (272) and the second wire mesh rubber (274) are sequentially arranged from bottom to top; the screw (275) penetrates through the support (271), the first wire mesh rubber (273), the mass block (272) and the second wire mesh rubber (274), and a nut (276) is arranged above the screw (275).

8. The high efficiency fiber laser cutting machine for metal plate material according to claim 7, wherein said wire mesh rubber one (273) is provided with a first protective case (277) at upper and lower ends; a second protective shell (278) is arranged at the upper end and the lower end of the second wire mesh rubber (274); and a gasket (279) is arranged at the joint of the screw (275) and the bracket (271).

9. The efficient optical fiber laser cutting machine for metal plates as claimed in claim 2, wherein the left frame (21), the right frame (22) and the connecting plate (26) are of a closed box-shaped structure formed by welding steel plates and section steel; the workbench (23) is composed of a plurality of zigzag plates (231) with parallel narrow edges, and a plurality of rib plates (232) parallel to the wide edges of the workbench (23) are arranged below the zigzag plates (231).