CN118023732A - Laser cutting equipment is used in aircraft bonnet assembly production - Google Patents
Laser cutting equipment is used in aircraft bonnet assembly production Download PDFInfo
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- CN118023732A CN118023732A CN202410431446.3A CN202410431446A CN118023732A CN 118023732 A CN118023732 A CN 118023732A CN 202410431446 A CN202410431446 A CN 202410431446A CN 118023732 A CN118023732 A CN 118023732A
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- machine tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/146—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor the fluid stream containing a liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/16—Removal of by-products, e.g. particles or vapours produced during treatment of a workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention is suitable for the technical field of laser cutting, and provides laser cutting equipment for producing a hood assembly, which comprises machine tool units, wherein the machine tool units comprise machine tool frames which are symmetrically arranged, a movable guide rail arranged at the top of the machine tool frames, and a portal frame arranged at the top of the movable guide rail, the end parts of the machine tool frames are provided with blanking units, a conveying unit, a spraying unit and a cleaning unit are arranged between two groups of machine tool frames, and the conveying unit is arranged in parallel with the top of the machine tool frames. The device has solved the inhomogeneous heat input that the laser beam irradiation caused and has aroused the sheet metal cutting department to produce melting cutting warp deformation, and the slag that the cutting produced adheres to and causes the problem of damage to the sheet metal surface on supporting the sword strip, has reached and has utilized the spraying to offset residual stress, reduces the warp deformation volume, reduces slag temperature simultaneously and adheres to, utilizes the slag removal sword to clear up the slag on the supporting the sword strip, avoids causing the effect of fish tail to the sheet metal surface.
Description
Technical Field
The invention relates to the technical field of laser cutting, in particular to laser cutting equipment for hood assembly production.
Background
The internal combustion forklift hood assembly is a thin shell assembly for covering and protecting an internal combustion forklift engine, and the hood assembly needs to cut a metal sheet by laser in the machining process. And cutting the thin plate into a preset shape by laser cutting equipment, and then performing a subsequent series of processing to finally form a finished product of the hood assembly.
The conventional laser cutting apparatus irradiates a cutting area with a laser beam to evaporate or melt a surface of a material while forming minute slits on the surface of the material to thereby complete cutting. During the cutting process, the irradiation of the high-temperature laser beam can cause uneven heat input on the surface of the metal sheet, and the uneven heat input further forms a residual stress field on the surface of the cut part of the metal sheet. Therefore, the cutting position of the metal sheet is subjected to melting cutting buckling deformation, and the excessive buckling deformation is easy to cause cutting collision, so that great economic loss is caused.
In order to reduce the warp deformation amount of the metal sheet, the sheet is generally processed by mechanical correction or heat treatment. Mechanical correction can only recover a very small part of the buckling deformation amount, faces a large range of buckling deformation, and cannot enable the corrected metal sheet to meet the supply requirement. The heat treatment is to heat the warped portion of the metal sheet to a certain temperature and counteract the stress residual by using the generated thermal stress, but the temperature and time limit of heating are difficult to control in the actual operation process. Therefore, neither mechanical correction nor heat treatment can well eliminate warp deformation generated by the metal sheet, and finally the quality of the finished product of the hood assembly is affected.
Meanwhile, in the laser cutting process, high-temperature laser beams act on the metal surface to cause partial metal oxidation, and the generated metal oxides can increase the surface tension of the material, so that slag splashing phenomenon is caused at the cutting position of the metal sheet. In the laser cutting process, part of slag can splash to the side wall of the supporting knife bar, and the slag on the side wall of the supporting knife bar can be condensed with the supporting knife bar into a whole after being cooled. After long-time accumulation, uneven slag adheres to the surface of the supporting knife bar, but scratches are generated on the surface of the metal sheet, so that the cut hood assembly can not meet the supply requirement.
Although the existing laser cutting equipment adopts modes of properly reducing laser power, improving cutting speed, improving defocusing amount and the like, the range of a slag splashing area during laser cutting is reduced. But cannot fundamentally solve the problem that slag adheres to the side wall of the supporting knife bar, thereby scratching the surface of the metal sheet.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the laser cutting equipment for producing the hood assembly, which uses the spraying piece to spray and offset the residual stress at the cutting position, reduces the warping deformation of melting cutting, reduces the temperature of slag and adhesion, uses the slag removing knife to further clean slag adhered on the supporting knife bar, and avoids the slag accumulation to scratch the surface of the metal sheet.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The laser cutting equipment for the production of the hood assembly comprises machine tool units, wherein the machine tool units comprise symmetrically arranged machine tool frames, movable guide rails arranged at the tops of the machine tool frames and portal frames arranged at the tops of the movable guide rails, blanking units are arranged at the ends of the machine tool frames, conveying units, spraying units and cleaning units are arranged between two groups of machine tool frames, the conveying units are arranged flush with the tops of the machine tool frames, and the spraying units and the cleaning units are arranged at the bottoms of the conveying units; the conveying unit comprises two groups of conveying side bands which are symmetrically arranged in the length direction of the machine tool frame and support blades which can provide support for the thin plate for the hood assembly; the spraying unit comprises a spraying pipeline arranged between two groups of machine tool frames and a plurality of groups of rotary spraying pieces capable of performing rotary spraying; the cleaning unit comprises a sliding component arranged between two groups of machine tool frames, a steering component arranged at the top of the sliding component and a slag removing knife capable of cleaning slag on the side wall of the supporting knife bar; the blanking unit comprises a blanking mounting frame which is of an inverted L-shaped structure and a blanking ejection assembly which can eject cut finished products.
The invention is further provided with: the two ends of the supporting knife bar are respectively connected with two groups of conveying side bands, the conveying side bands are arranged along the length direction of the machine frame, and one end, close to the blanking unit, of the supporting knife bar is connected with a conveying driving assembly capable of driving the conveying side bands to rotate; the conveying driving assembly is arranged along the width direction of the machine tool unit, and two ends of the conveying driving assembly respectively penetrate through the two groups of conveying sidebands.
The invention is further provided with: the conveying belt comprises a crawler belt which is arranged in an annular structure, a plurality of groups of crawler belt driving parts are equidistantly arranged on the inner side wall of the crawler belt, and a driving gear is arranged on one side, close to the conveying driving assembly, of the crawler belt; the transmission gear is meshed with the crawler transmission part, and a through hole for the transmission driving assembly to penetrate is formed in the center of the transmission gear.
The invention is further provided with: the spraying pipeline is provided with a plurality of groups of spraying through holes which can be communicated with the rotary spraying piece and penetrate through the side wall of the machine tool frame along the length direction of the machine tool frame; the rotary spraying piece is arranged in the vertical direction, and a connecting pipeline is arranged at the bottom of the rotary spraying piece and connected with the spraying through hole.
The invention is further provided with: the top of the connecting pipeline is provided with a rotating ring and a spraying ring which can be connected into a whole, and a plurality of groups of spraying ports are formed in the top of the spraying ring in a surrounding manner; and a rotating piece is arranged between the rotating ring and the spraying ring, and the rotating piece can rotate between the rotating ring and the spraying ring.
Through adopting above-mentioned technical scheme, rivers get into inside the rotatory spray piece from the spray pipe, and the rotatory piece rotates under the effect of rivers, drives rivers and rotates when rotating the ring relatively, makes it follow the multiunit that encircles the setting and sprays the mouth blowout, forms the even water smoke that sprays above the spray piece. The 360-degree omnibearing spraying is realized, and meanwhile, the uniformity of spraying water mist can be ensured.
The invention is further provided with: the utility model discloses a lathe, including lathe unit width direction, slip subassembly, steering assembly, the slip subassembly sets up along lathe unit width direction, and the top is provided with slidable sliding block, the steering assembly is including installing the steering mounting bracket at the sliding block top, the rotating turret is installed in the rotation of steering mounting bracket top, the slagging-off sword is installed at the rotating turret top.
The invention is further provided with: the deslagging knife comprises a knife holder connecting piece arranged at the top of the rotating frame, and two groups of deslagging knife heads are arranged at the top of the knife holder connecting piece along the vertical direction; the deslagging tool bit is arranged along the width direction of the machine tool unit, the height of the deslagging tool bit is matched with the height of the supporting tool bar, and the distance between the deslagging tool bit and the supporting tool bar is matched with the width of the supporting tool bar.
Through adopting above-mentioned technical scheme, drive the sliding block through the slip cylinder and remove along slide rail, the steering assembly and the slagging-off sword at sliding block top are moved to synchronous drive. In the moving process of the deslagging knife, two groups of deslagging knife heads can clean slag attached to the side wall of the supporting knife bar.
The invention is further provided with: the blanking mounting frame comprises a supporting frame arranged along the vertical direction, and the side wall of the supporting frame is connected with a sliding frame arranged along the horizontal direction; the top of the sliding frame is connected with a connecting rod in a sliding manner, and the bottom of one end, far away from the sliding frame, of the connecting rod is connected with a blanking ejection assembly.
The invention is further provided with: the blanking ejection assembly comprises a first ejection plate connected with the connecting rod, an ejection cylinder is arranged in the center of the first ejection plate in a penetrating manner, a group of ejection slide bars are connected to four corners of the ejection cylinder, each group of ejection slide bars are arranged in a penetrating manner through the first ejection plate, and a second ejection plate is connected to the bottom of each ejection slide bar; and a group of ejector rods capable of ejecting the cut finished product are arranged at the center position and the four corners of the bottom of the second ejector plate.
Through adopting above-mentioned technical scheme, drive ejecting slide bar through ejecting cylinder and stretch out and draw back along vertical direction, drive the second ejector plate in step and remove along vertical direction, set up four ejecting slide bars and guarantee that each direction atress is even in the second ejector plate downstream moving process, make the second ejector plate remove the in-process remain level throughout.
The invention is further provided with: the cutting unit comprises a cutting installation piece arranged at the top of the portal frame, a cutting guide piece is arranged on the side wall of the cutting installation piece along the vertical direction, and a laser cutting piece capable of carrying out laser cutting on a thin plate for a hood assembly is arranged at the bottom of the cutting guide piece.
In summary, the present application includes at least one of the following beneficial technical effects:
1. The spraying unit is arranged, and the metal sheet on the top of the spraying unit is uniformly sprayed in all directions in the cutting process, so that on one hand, the water mist is utilized to reduce the temperature of a cutting position, and the stress residue on the surface of the metal sheet is counteracted, so that the melting cutting buckling deformation caused by cutting is reduced; on the other hand, the water mist sprayed by the spraying piece contacts with a part of slag, so that the surface temperature of the slag is gradually reduced to be insufficient for supporting the slag to be attached to the supporting knife bar, the probability of the slag attached to the supporting knife bar in the splashing process is greatly reduced, and the slag accumulation amount on the supporting knife bar is reduced.
2. The slag removing cutter is driven to move along the width direction of the machine tool unit through the sliding component, slag adhering to the side wall of the supporting cutter bar is cleaned by the slag removing cutter head, and accordingly scratches caused to the surfaces of the metal sheet and the sheet for the hood assembly due to slag accumulation are avoided. Simultaneously, under the cooperation of carrying the sideband, utilize a set of slagging-off sword to accomplish the clearance to all supporting knife bars.
3. Five groups of ejector rods are arranged at the bottom of the second ejector plate and are respectively ejected from the center position and the four corners of the thin plate for the hood assembly, and pressure is vertically applied to the ejector rods from the top of the thin plate for the hood assembly in the ejection process, so that the stress of all directions of the thin plate for the hood assembly is uniform, and the deflection is avoided. Therefore, the thin plate for the hood assembly can be vertically separated from the cutting seam of the metal thin plate, and friction between a cutting surface and the cutting seam caused in the separation process of the thin plate for the hood assembly is avoided, so that the product quality of the hood assembly is influenced.
Drawings
FIG. 1 is a schematic view of a laser cutting apparatus for producing a hood assembly according to the present invention.
FIG. 2 is a schematic diagram of an exploded construction of a laser cutting apparatus for hood assembly production according to the present invention.
Fig. 3 is a schematic structural view of a machine tool unit and a cutting unit in the present invention.
Fig. 4 is a schematic structural view of a conveying unit in the present invention.
Fig. 5 is a partial enlarged view of the area a in fig. 4.
Fig. 6 is a schematic structural view of a shower unit according to the present invention.
Fig. 7 is a schematic view of a rotary shower member according to the present invention.
Fig. 8 is a schematic structural view of a cleaning unit in the present invention.
Fig. 9 is a schematic view of the steering assembly and the slag remover of the present invention.
Fig. 10 is a schematic structural diagram of a blanking unit in the present invention.
Fig. 11 is a schematic structural diagram of a blanking ejection assembly according to the present invention.
Fig. 12 is an exploded view of the blanking ejector assembly of the present invention.
Reference numerals illustrate: 1. a machine tool unit; 11. a machine frame; 12. a moving guide rail; 13. a portal frame; 131. a gantry driving member; 132. gantry sliding rail;
2. A cutting unit; 21. cutting the mounting member; 22. cutting the guide; 23. a laser cutting member; 24. a laser cutting head;
3. a conveying unit; 31. a transport drive assembly; 311. a driving motor; 312. a transmission rod; 313. a transmission member; 32. conveying the sidebands; 321. a track; 322. a track drive; 323. a transmission gear; 33. supporting the knife bar; 34. a transport mount;
4. A spraying unit; 41. a spray pipe; 411. spraying the through holes; 42. rotating the spraying piece; 421. a connecting pipe; 422. a rotating ring; 423. a spray ring; 424. a rotating member; 425. a spray port;
5. A cleaning unit; 51. a sliding assembly; 511. a sliding guide rail; 512. a sliding block; 513. a sliding cylinder; 52. a steering assembly; 521. a steering mounting rack; 522. a steering cylinder; 523. a cylinder mount; 524. a cylinder connecting piece; 525. a rotating frame; 53. a deslagging knife; 531. a tool apron connecting piece; 532. a deslagging cutter head;
6. A blanking unit; 61. discharging mounting frames; 611. a support frame; 612. a carriage; 613. a connecting rod; 62. a blanking ejection assembly; 621. an ejection cylinder; 622. a first ejector plate; 623. ejecting the slide bar; 624. a limit cylinder; 625. a limiting piece; 626. a second ejector plate; 627. and an ejector rod.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.
Referring to fig. 1-12, the present invention provides the following technical solutions:
Referring to fig. 1-7, the metal sheet cutting machine comprises a machine tool unit 1, a cutting unit 2 arranged at the top of the machine tool unit 1, a conveying unit 3 and a spraying unit 4 arranged in the machine tool unit 1, wherein a metal sheet can be placed in the conveying unit 3 for conveying, the cutting unit 2 can perform laser cutting on the metal sheet, and the spraying unit 4 can cool a cutting position of the metal sheet in the cutting process.
Referring to fig. 1 to 3, the machine tool unit 1 includes a machine frame 11 symmetrically disposed, a moving rail 12 installed at the top of the machine frame 11, and a gantry 13 disposed at the top of the moving rail 12. The tops of the two groups of machine tool frames 11 are provided with a group of movable guide rails 12 along the length direction, and two ends of the portal frame 13 are slidably arranged on the two groups of movable guide rails 12. The top of the portal frame 13 is provided with a cutting unit 2, a portal sliding rail 132 is arranged in the portal frame 13 along the length direction of the portal frame 13, one end of the portal frame 13 is provided with a portal driving piece 131, and the portal driving piece 131 can drive the cutting unit 2 to slide on the portal sliding rail 132. In the sliding process of the portal frame 13 on the moving guide rail 12, the cutting unit 2 can be synchronously driven to move along the direction of the moving guide rail 12, and the cutting unit 2 can finish cutting the metal sheet in the process.
Referring to fig. 1 to 3, the cutting unit 2 includes a cutting mount 21, a cutting guide 22, a laser cutting member 23, and a laser cutting head 24. The cutting installation piece 21 is slidably installed on the top of the portal frame 13, and the portal driving piece 131 can drive the cutting installation piece 21 to move along the direction of the portal sliding rail 132, so as to drive the cutting unit 2 to adjust the position. The side wall of the cutting installation piece 21 is provided with a cutting guide piece 22 along the vertical direction, and the bottom of the cutting guide piece 22 is provided with a laser cutting piece 23 which can perform laser cutting on the thin plate for the hood assembly. The bottom of the laser cutting piece 23 is provided with a laser cutting head 24 which can cut the metal sheet, and the cutting guide piece 22 can drive the laser cutting piece 23 to move along the vertical direction and finally synchronously drive the laser cutting head 24 to adjust the position.
Referring to fig. 1-2 and fig. 4-5, a conveying unit 3 is disposed between two sets of machine tool frames 11, and the conveying unit 3 is disposed flush with the top of the machine tool frames 11. The conveying unit 3 includes a conveying drive assembly 31, a drive motor 311, a transmission rod 312, a transmission member 313, a conveying belt band 32, a crawler 321, a crawler transmission member 322, a transmission gear 323, a supporting blade 33, and a conveying mounting frame 34. The conveying side bands 32 are symmetrically arranged in two groups in the length direction of the machine frame 11, and a plurality of groups of supporting knife bars 33 are equidistantly arranged on the outer side walls of the two groups of conveying side bands 32. Two sets of conveying side bands 32 are respectively installed on the inner wall of a conveying installation frame 34, the conveying installation frame 34 is of a rectangular frame structure with the size matched with that of the machine tool frame 11, the outer side wall of the conveying installation frame 34 is connected with the inner side wall of the machine tool frame 11, and the conveying unit 3 and the machine tool frame 11 can be connected through the conveying installation frame 34.
Referring to fig. 4-5, the supporting blade 33 is configured in a zigzag structure, which can provide support for the metal sheet and the cut sheet for the hood assembly, and can reduce the contact area with the metal sheet, so as to avoid damage to the supporting blade 33 caused by the emitted laser beam during the cutting process of the metal sheet by the laser cutting head 24. The two ends of the supporting knife bar 33 are respectively connected with the two groups of conveying sidebands 32, so that the connection reliability with the conveying sidebands 32 is ensured. The conveying belt band 32 comprises a crawler 321 which is arranged to be of an annular structure, the outer side wall of the crawler 321 is connected with the supporting knife bar 33, a plurality of groups of crawler transmission members 322 are arranged on the inner side wall of the crawler 321 at equal intervals, and a transmission gear 323 is arranged on one side, close to the conveying driving assembly 31, of the crawler 321. The transmission gear 323 is meshed with the crawler belt transmission member 322, and a through hole for the transmission driving assembly 31 to penetrate is formed in the center position.
Referring to fig. 4-5, the conveying driving assembly 31 is disposed along the width direction of the machine tool unit 1, and two ends of the conveying driving assembly penetrate through two sets of conveying belts 32 respectively. The conveying drive assembly 31 is provided at an end of the machine tool frame 11, and includes a drive motor 311, a transmission rod 312, and a transmission member 313. The driving motor 311 is mounted at an end of the transport mounting 34 and is provided through the transport mounting 34. The output end of the driving motor 311 is connected with a transmission rod 312, the transmission rod 312 is arranged along the width direction of the conveying installation frame 34, and two ends of the transmission rod penetrate through two groups of transmission gears 323 respectively. The other end of the transmission rod 312 is provided with a transmission member 313, the transmission member 313 is arranged on the side wall of the conveying installation frame 34, and the transmission member 313 can limit the transmission rod 312. The driving motor 311 can drive the driving rod 312 to rotate, and the driving rod 312 can synchronously drive the two groups of driving gears 323 at two ends of the driving rod to rotate in the rotating process. The two sets of transmission gears 323 can synchronously drive the two sets of tracks 321 to rotate through being meshed with the track transmission members 322, so that the rotation of the conveying belt strips 32 is finally realized, and the conveying of the metal sheet placed at the top of the conveying belt strips 32 is completed.
Referring to fig. 2 and 6-7, a spraying unit 4 is disposed between two sets of machine tool frames 11, and the spraying unit 4 is disposed at the bottom of the conveying unit 3. The spray unit 4 includes a spray pipe 41, a spray through hole 411, a rotary spray 42, a connection pipe 421, a rotary ring 422, a spray ring 423, a rotary member 424, and a spray port 425. The spray pipes 41 are provided between the two sets of machine tool frames 11, and the spray pipes 41 are provided in plural sets along the length direction of the machine tool frames 11 and penetrate through the side walls of the machine tool frames 11. Each group of spraying pipelines 41 is provided with a plurality of groups of spraying through holes 411, and each group of spraying through holes 411 is communicated with one group of rotary spraying pieces 42. The rotary spraying piece 42 is arranged in the vertical direction, a connecting pipeline 421 is arranged at one end, close to the spraying pipeline 41, of the rotary spraying piece 42, and the rotary spraying piece 42 is communicated with the spraying pipeline 41 through the connection of the connecting pipeline 421 and the spraying through hole 411. The top of the connecting pipe 421 is provided with a rotating ring 422 and a spraying ring 423 which can be connected into a whole, a rotating piece 424 is arranged between the rotating ring 422 and the spraying ring 423, and the rotating piece 424 can rotate between the rotating ring 422 and the spraying ring 423. The top of the spray ring 423 is provided with a plurality of groups of spray openings 425 in a surrounding manner, and after water flows from the spray pipeline 41 into the rotary spray piece 42, the rotary piece 424 rotates relative to the rotary ring 422 under the action of the water flow. In the process of rotating the rotary member 424, the water flow inside the rotary spraying member 42 is driven to rotate, and finally the water is sprayed out from a plurality of groups of spraying ports 425 which are arranged around, so that uniform water mist sprayed above the rotary spraying member 42 is formed. The water flow is sprayed out from different spraying ports 425 under the driving of the rotating member 424, so that on one hand, the uniformity of water mist in a spraying range can be ensured, and on the other hand, the rotating spraying member 42 can realize 360-degree all-directional spraying, and finally, the purpose of carrying out all-directional uniform spraying on the metal sheet at the top of the spraying unit 4 is achieved. In the spraying process of the metal sheet, the temperature of the cutting position is reduced by utilizing water mist to counteract stress residues generated on the surface of the metal sheet, so that the deformation of the melting cutting warp caused by cutting is reduced. At the same time, a portion of the slag produced by the laser cutting may come into contact with the mist sprayed by the rotary spray 42 during the downward splashing process. After the slag contacts with the water mist, the temperature of the surface of the slag can be gradually reduced, and when the temperature of the slag is reduced to a certain degree, the temperature of the surface of the slag is insufficient to support the slag to be adhered to the supporting knife bar 33, so that the probability of the slag adhering to the supporting knife bar 33 in the splashing process is greatly reduced, and the slag accumulation amount on the supporting knife bar 33 is reduced.
Specifically, in cutting the sheet for the hood assembly, the sheet metal is first placed on top of the conveying unit 3 and supported by the supporting blade 33. After the metal sheet is placed, the portal frame 13 moves along the moving guide rail 12, the cutting unit 2 moves along the portal frame 13 to adjust the position, the cutting guide piece 22 drives the laser cutting piece 23 to move along the vertical direction to adjust the position, and finally, the adjustment of the positions of the laser cutting head 24 in all directions is realized.
After the position of the laser cutting head 24 is adjusted, the metal sheet can be cut by laser, and the sheet for the hood assembly is processed. In the laser cutting process of the laser cutting head 24, the high-temperature laser beam irradiates the surface of the metal sheet to cause uneven heat input, and at the moment, the rotary spraying piece 42 arranged at the bottom of the metal sheet can spray uniform water mist to the cutting position to reduce the temperature of the cutting position and offset the stress residue generated on the surface of the metal sheet by cutting, so that the melting cutting buckling deformation caused by cutting is reduced, and the thin sheet for the hood assembly can meet the production standard. The laser beam acts on the surface of the metal sheet to cause partial metal oxidation, and the oxidized slag can fall from the cutting seam to generate slag splashing. The water mist sprayed by the rotary spray member 42 can cool down part of the slag so that the slag cannot adhere to the side wall of the supporting blade 33, thereby reducing slag accumulation on the supporting blade 33.
Referring to fig. 1-2 and 8-9, the second embodiment is an improvement on the basis of the first embodiment, in which after the conventional laser cutting apparatus is used for a long period of time, splashed slag is accumulated on the side wall of the supporting blade 33, and the metal sheet is scratched by the slag accumulation. The mode that current laser cutting equipment generally adopts the manual disassembly will support the whole processing of scrapping of knife strip 33, extravagant more manpower on the one hand, and on the other hand supports knife strip 33 and can not carry out reuse, has increased laser cutting equipment's use cost. Therefore, the cleaning unit 5 needs to be arranged at the bottom of the conveying unit 3, and when slag on the supporting knife bar 33 is accumulated to a certain extent, the slag can be cleaned by the cleaning unit 5, so that the surface scratches of the metal sheet and the sheet for the hood assembly caused by accumulation of slag are avoided.
Referring to fig. 1-2 and 8-9, the cleaning unit 5 includes a slide assembly 51, a slide rail 511, a slide block 512, a slide cylinder 513, a steering assembly 52, a steering mounting bracket 521, a steering cylinder 522, a cylinder mount 523, a cylinder connector 524, a turret 525, a deslagging knife 53, a knife holder connector 531, and a deslagging knife head 532. The sliding component 51 is arranged between the two groups of machine tool frames 11 and along the width direction of the machine tool unit 1, the steering component 52 is arranged at the top of the sliding component 51, and the sliding component 51 can drive the steering component 52 at the top of the sliding component to move along the width direction of the machine tool unit 1. The slide assembly 51 includes a slide rail 511 provided along the width direction of the machine tool unit 1, a slide block 512 is provided on the top of the slide rail 511, and a slide cylinder 513 is provided at the end of the slide rail 511. The steering assembly 52 is installed on the top of the sliding block 512, and the sliding cylinder 513 can drive the sliding block 512 to move along the sliding guide rail 511 and synchronously drive the steering assembly 52 on the top of the sliding block 512 to move.
Referring to fig. 8-9, the steering assembly 52 includes a steering mount 521 mounted on top of the slider 512, the steering mount 521 being disposed in a vertical direction and two sets being symmetrically disposed about an axis of the slider 512. The top of the two sets of steering mounting frames 521 is rotatably provided with a rotating frame 525, and the middle part is rotatably provided with a steering cylinder 522. The bottom of the steering cylinder 522 is rotatably connected with a cylinder mounting member 523, and the top is rotatably connected with a cylinder connecting member 524. The cylinder mount 523 is mounted on top of the slider 512, and the top of the cylinder connector 524 is connected to the turret 525. In the telescopic process of the air cylinder mounting piece 523, the air cylinder connecting piece 524 can drive the rotating frame 525 to rotate relative to the steering mounting frame 521. The deslagging knife 53 is installed at the top of the rotating frame 525, and the deslagging knife 53 can be synchronously driven to rotate in the rotating process of the rotating frame 525.
Referring to fig. 8 to 9, the deslagging knife 53 includes a knife holder connector 531 mounted on the top of the turret 525, and the turret 525 is connected to the deslagging knife 53 through the knife holder connector 531. The top of the tool apron connecting piece 531 is provided with two groups of deslagging tool bits 532 along the vertical direction, and the deslagging tool bits 532 are arranged along the width direction of the machine tool unit 1 and are matched with the supporting tool bar 33 in height. The spacing between the two groups of deslagging cutter heads 532 is matched with the width of the supporting cutter bar 33, and slag on the side wall of the supporting cutter bar 33 can be cleaned when the deslagging cutter 53 moves along the width direction of the machine tool unit 1 along with the sliding block 512.
Specifically, when slag on the side wall of the supporting blade bar 33 is accumulated to a certain extent, the conveying driving assembly 31 drives the conveying side band 32 to rotate, so that the supporting blade bar 33 on the top of the conveying side band 32 is moved to the position of the cleaning unit 5. After the supporting blade 33 is in place, the air cylinder connecting piece 524 drives the rotating frame 525 to rotate relative to the steering mounting frame 521, and in the rotating process of the rotating frame 525, the deslagging knife 53 is synchronously driven to rotate, so that the deslagging knife 53 rotates from a state parallel to the bottom of the supporting blade 33 to a state perpendicular to the bottom of the supporting blade 33, and the supporting blade 33 is positioned between two groups of deslagging knife heads 532.
After the deslagging cutter head 532 turns, the sliding cylinder 513 drives the sliding block 512 to move along the sliding guide rail 511, and synchronously drives the turning assembly 52 and the deslagging cutter 53 on the top of the sliding block 512 to move. During the movement of the deslagging knife 53, the two groups of deslagging knife heads 532 can clean slag attached to the side wall of the supporting knife bar 33, so that the surface of the metal sheet and the surface of the sheet for the hood assembly are prevented from being scratched due to slag accumulation.
After the group of supporting knife bars 33 are cleaned, the slag removing knife 53 is driven to turn by the turning component 52 for resetting. Then, the conveying side band 32 conveys the other group of supporting knife bars 33 to the cleaning unit 5, and the above operation is repeated, so that the cleaning of the supporting knife bars 33 is continuously finished. With the cooperation of the conveying belts 32, the cleaning of all the supporting knife bars 33 can be completed by using a group of deslagging knives 53.
In the third embodiment, referring to fig. 1-2 and fig. 10-12, the third embodiment is modified based on the second embodiment, in which the cutting slit of the laser cutting is usually between 0.05mm and 0.1mm, and the thin plate for the hood assembly after cutting is easily clamped in the narrow cutting slit and cannot be removed normally. When the sheet metal for the hood assembly is fed, external force is required to be manually applied to the sheet metal for the hood assembly, so that the sheet metal for the hood assembly can be pulled out of the sheet metal to complete the feeding, however, the application point and the force of the external force are uncontrollable, the sheet metal for the hood assembly is easy to incline in the pulling-out process, friction is generated between the sheet metal for the hood assembly and a cutting seam, the flatness of the cutting surface of the sheet metal for the hood assembly is influenced, and therefore, a device capable of uniformly ejecting the sheet metal for the hood assembly during the feeding is required to be arranged to ensure that the flatness of the sheet metal for the hood assembly is not influenced.
Referring to fig. 1-2 and fig. 10-12, a blanking unit 6 is disposed at an end of a machine tool frame 11, and the blanking unit 6 includes a blanking mounting frame 61, a supporting frame 611, a sliding frame 612, a connecting rod 613, a blanking ejection assembly 62, an ejection cylinder 621, a first ejection plate 622, an ejection slide bar 623, a limiting cylinder 624, a limiting member 625, a second ejection plate 626, and an ejection rod 627. The unloading mounting bracket 61 sets up to the structure of falling L shape, and unloading mounting bracket 61 includes the support frame 611 that sets up along the vertical direction, and support frame 611 lateral wall is connected with the carriage 612 that sets up along the horizontal direction. The top of the sliding frame 612 is connected with a connecting rod 613 in a sliding manner, and the bottom of one end, far away from the sliding frame 612, of the connecting rod 613 is connected with a blanking ejection assembly 62. The connecting rod 613 can move along the horizontal direction relative to the carriage 612 and synchronously drive the discharging ejection assembly 62 to move.
Referring to fig. 10-12, the blanking ejector assembly 62 includes a first ejector plate 622 connected to a connecting rod 613, the first ejector plate 622 being horizontally disposed and having an ejector cylinder 621 penetrating through its center. The four corners of the ejection cylinder 621 are respectively connected with a group of ejection slide bars 623, and the ejection slide bars 623 can extend and retract along the vertical direction. Each set of ejector slide bars 623 is disposed through the first ejector plate 622 and has a second ejector plate 626 connected to the bottom. The two ends of the first ejector plate 622 are respectively provided with a group of limiting air cylinders 624, the bottom of each group of limiting air cylinders 624 is rotationally connected with a group of limiting elements 625, and the limiting air cylinders 624 can drive the limiting elements 625 to rotate, so that the second ejector plate 626 is clamped or loosened. The ejector cylinder 621 can drive the ejector slide rod 623 to stretch and retract vertically relative to the first ejector plate 622, and synchronously drive the second ejector plate 626 to move vertically. The center position and the four corners of the bottom of the second ejector plate 626 are respectively provided with a group of ejector rods 627 which can eject the cut finished product, the ejector rods 627 can synchronously move along with the second ejector plate 626, and pressure is applied to the top of the cut finished product by the thin plate for the cover assembly.
Specifically, after the sheet for the hood assembly is cut, the conveying side strip 32 conveys the sheet metal to a position suspended from the conveying side strip 32, and at this time, the sheet for the hood assembly is positioned at the bottom of the blanking unit 6. When the blanking unit 6 performs blanking, the connecting rod 613 moves in the horizontal direction relative to the sliding frame 612, and synchronously drives the blanking ejection assembly 62 to move to the position of the thin plate for the hood assembly.
After the blanking ejection assembly 62 is in place, the limiting cylinders 624 at the two ends of the first ejection plate 622 drive the limiting pieces 625 to rotate, so that the clamping connection of the second ejection plate 626 is released. After the second ejector plate 626 is loosened, the ejector cylinder 621 drives the ejector slide rod 623 to stretch and retract along the vertical direction relative to the first ejector plate 622, and synchronously drives the second ejector plate 626 to move along the vertical direction. By arranging the four groups of ejection slide bars 623, the force applied to the second ejection plate 626 in all directions in the downward movement process can be ensured to be uniform, so that the second ejection plate 626 is always kept horizontal in the movement process, and the five groups of ejection rods 627 at the bottom of the second ejection plate 626 in the subsequent ejection process can be ensured to vertically apply pressure to the second ejection plate 626 from the top of the thin plate for the hood assembly.
In the downward movement process of the second ejector plate 626, the bottom five groups of ejector rods 627 move synchronously with the second ejector plate 626. After the five groups of ejector rods 627 are abutted against the thin plate for the hood assembly, the ejector rods continue to move downwards, and pressure is vertically applied from the top of the thin plate for the hood assembly. The five groups of ejection rods 627 are respectively ejected from the center position and the four corners of the thin plate for the hood assembly, so that the stress of the thin plate for the hood assembly in all directions is uniform, and the deflection can not occur. Therefore, the thin plate for the hood assembly can be vertically separated from the cutting seam of the metal thin plate, and friction between a cutting surface and the cutting seam caused in the separation process of the thin plate for the hood assembly is avoided, so that the product quality of the thin plate for the hood assembly is influenced.
It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Claims (10)
1. Laser cutting equipment is used in production of aircraft bonnet assembly, its characterized in that: the automatic feeding device comprises a machine tool unit (1), wherein the machine tool unit (1) comprises a machine tool frame (11) which is symmetrically arranged, a movable guide rail (12) which is arranged at the top of the machine tool frame (11) and a portal frame (13) which is arranged at the top of the movable guide rail (12), a blanking unit (6) is arranged at the end part of the machine tool frame (11), a conveying unit (3), a spraying unit (4) and a cleaning unit (5) are arranged between two groups of machine tool frames (11), the conveying unit (3) and the top of the machine tool frame (11) are arranged in a flush manner, and the spraying unit (4) and the cleaning unit (5) are arranged at the bottom of the conveying unit (3);
The conveying unit (3) comprises two groups of conveying side bands (32) symmetrically arranged in the length direction of the machine tool frame (11) and a supporting knife bar (33) capable of supporting the thin plate for the hood assembly;
The spraying unit (4) comprises a spraying pipeline (41) arranged between two groups of machine tool frames (11) and a plurality of groups of rotary spraying pieces (42) capable of performing rotary spraying;
The cleaning unit (5) comprises a sliding component (51) arranged between two groups of machine tool frames (11), a steering component (52) arranged at the top of the sliding component (51) and a slag removing knife (53) capable of cleaning slag on the side wall of the supporting knife bar (33);
the blanking unit (6) comprises a blanking mounting frame (61) which is of an inverted L-shaped structure and a blanking ejection assembly (62) which can eject a cut finished product.
2. The laser cutting apparatus for hood assembly production of claim 1, wherein: two ends of the supporting knife bar (33) are respectively connected with two groups of conveying sidebands (32), the conveying sidebands (32) are arranged along the length direction of the machine tool frame (11), and one end, close to the blanking unit (6), of the supporting knife bar is connected with a conveying driving assembly (31) capable of driving the conveying sidebands (32) to rotate;
The conveying driving assembly (31) is arranged along the width direction of the machine tool unit (1), and two ends of the conveying driving assembly respectively penetrate through two groups of conveying sidebands (32).
3. The laser cutting apparatus for hood assembly production of claim 2, wherein: the conveying belt (32) comprises a crawler belt (321) which is arranged in an annular structure, a plurality of groups of crawler belt driving parts (322) are equidistantly arranged on the inner side wall of the crawler belt (321), and a driving gear (323) is arranged on one side, close to the conveying driving assembly (31), of the crawler belt (321);
the transmission gear (323) is meshed with the crawler belt transmission part (322), and a through hole for the transmission driving assembly (31) to penetrate is formed in the center.
4. The laser cutting apparatus for hood assembly production of claim 1, wherein: the spraying pipeline (41) is provided with a plurality of groups of spraying through holes (411) which can be communicated with the rotary spraying piece (42) along the length direction of the machine tool frame (11) and penetrate through the side wall of the machine tool frame (11);
the rotary spraying piece (42) is arranged in the vertical direction, and a connecting pipeline (421) is arranged at the bottom and connected with the spraying through hole (411).
5. The laser cutting apparatus for hood assembly production of claim 4, wherein: the top of the connecting pipeline (421) is provided with a rotating ring (422) and a spraying ring (423) which can be connected into a whole, and a plurality of groups of spraying ports (425) are formed around the top of the spraying ring (423);
A rotating piece (424) is arranged between the rotating ring (422) and the spraying ring (423), and the rotating piece (424) can rotate between the rotating ring (422) and the spraying ring (423).
6. The laser cutting apparatus for hood assembly production of claim 1, wherein: the utility model discloses a slag removal device, including lathe unit (1), slip subassembly (51), steering subassembly (52) are including installing steering mounting bracket (521) at slider (512) top, steering mounting bracket (521) top is rotated and is installed rotating frame (525), deslagging knife (53) are installed at rotating frame (525) top along lathe unit (1) width direction setting, and the top is provided with slidable slider (512).
7. The laser cutting apparatus for hood assembly production of claim 6, wherein: the deslagging knife (53) comprises a knife holder connecting piece (531) arranged at the top of the rotating frame (525), and two groups of deslagging knife heads (532) are arranged at the top of the knife holder connecting piece (531) along the vertical direction;
The deslagging tool bits (532) are arranged along the width direction of the machine tool unit (1) and are matched with the supporting tool bars (33) in height, and the distance between the deslagging tool bits (532) and the supporting tool bars (33) are matched with the width.
8. The laser cutting apparatus for hood assembly production of claim 1, wherein: the blanking mounting frame (61) comprises a supporting frame (611) arranged along the vertical direction, and a sliding frame (612) arranged along the horizontal direction is connected to the side wall of the supporting frame (611);
The top of the sliding frame (612) is connected with a connecting rod (613) in a sliding manner, and the bottom of one end, far away from the sliding frame (612), of the connecting rod (613) is connected with a blanking ejection assembly (62).
9. The laser cutting apparatus for hood assembly production of claim 8, wherein: the blanking ejection assembly (62) comprises a first ejection plate (622) connected with a connecting rod (613), an ejection cylinder (621) is arranged in the center of the first ejection plate (622) in a penetrating manner, a group of ejection slide rods (623) are connected to four corners of the ejection cylinder (621), each group of ejection slide rods (623) is arranged in a penetrating manner through the first ejection plate (622), and a second ejection plate (626) is connected to the bottom of each ejection slide rod;
And a group of ejector rods (627) capable of ejecting the cut finished product are arranged at the center position and the four corners of the bottom of the second ejector plate (626).
10. The laser cutting apparatus for hood assembly production of claim 1, wherein: the cutting device is characterized in that a cutting unit (2) is arranged at the top of the portal frame (13), the cutting unit (2) comprises a cutting installation piece (21) arranged at the top of the portal frame (13), a cutting guide piece (22) is arranged on the side wall of the cutting installation piece (21) along the vertical direction, and a laser cutting piece (23) capable of carrying out laser cutting on a thin plate for a hood assembly is arranged at the bottom of the cutting guide piece (22).
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| CN202410431446.3A CN118023732B (en) | 2024-04-11 | 2024-04-11 | Laser cutting equipment is used in aircraft bonnet assembly production |
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| CN202410431446.3A CN118023732B (en) | 2024-04-11 | 2024-04-11 | Laser cutting equipment is used in aircraft bonnet assembly production |
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| CN118023732B (en) | 2024-06-04 |
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