WO2019054728A1 - Dispositif tournant d'alimentation en gaz de protection et d'évacuation des fumées - Google Patents

Dispositif tournant d'alimentation en gaz de protection et d'évacuation des fumées Download PDF

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Publication number
WO2019054728A1
WO2019054728A1 PCT/KR2018/010642 KR2018010642W WO2019054728A1 WO 2019054728 A1 WO2019054728 A1 WO 2019054728A1 KR 2018010642 W KR2018010642 W KR 2018010642W WO 2019054728 A1 WO2019054728 A1 WO 2019054728A1
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WO
WIPO (PCT)
Prior art keywords
plate
passage
protective gas
fume
gas supply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2018/010642
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English (en)
Korean (ko)
Inventor
김재구
최기봉
이창우
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Korea Institute of Machinery and Materials KIMM
Original Assignee
Korea Institute of Machinery and Materials KIMM
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Korea Institute of Machinery and Materials KIMM filed Critical Korea Institute of Machinery and Materials KIMM
Priority to DE112018005064.5T priority Critical patent/DE112018005064T5/de
Publication of WO2019054728A1 publication Critical patent/WO2019054728A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B23K26/142—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 for the removal of by-products
    • 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
    • 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
    • B23K26/1462—Nozzles; Features related to nozzles
    • 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
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • 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
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/211—Bonding by welding with interposition of special material to facilitate connection of the parts
    • 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
    • B23K26/34—Laser welding for purposes other than joining
    • B23K26/342—Build-up welding
    • 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
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings

Definitions

  • the present invention relates to a rotary type protective gas supply and fume removing apparatus, and more particularly, to a rotary type protective gas supply and fume removing apparatus which stably supplies a protective gas around a wire melted by a laser beam in a laser welding equipment, a three- To a rotary type protective gas supply and fume removing device for removing generated fumes.
  • Laser welding is a method in which light is focused and amplified and converted into thermal energy.
  • the laser beam is irradiated to the surface of the material to instantaneously heat and melt the material to cut or join the material.
  • Laser welding is used in a variety of fields because it can weld narrow and deep areas precisely, has a small thermal deformation range, has little noise and wear, and recently, materials such as metal or plastic are melted and laminated through welding And is also applied to a 3D printer for forming a three-dimensional object.
  • a wire supply unit is basically provided to continuously supply the wire used as the base metal to the focus of the laser beam.
  • the protective gas is ejected through a separate protective gas supplying device around the melted wire.
  • a protective gas supply and fume removing apparatus comprising: a fixation plate, a rotation plate, and a common passage portion mounted on a molding processing apparatus including a head portion; do.
  • the fixing plate is coupled to the head portion.
  • the rotating plate is rotatably coupled to the fixed plate.
  • the common passage portion is formed on at least one of an engagement surface of the stationary plate and an engagement surface of the rotary plate and has a passage through which the protection gas is supplied or the fume is removed.
  • the common passage portion includes a first common hole communicating with the upper surface of the fixed plate and the passage, through which the fume is supplied or removed, and the lower surface of the rotary plate communicates with the passage, And a second common hole through which the protective gas is discharged or fumes are introduced.
  • the sealing plate may further include a sealing portion disposed between the fixing plate and the rotation plate, for preventing the protective gas or the fume flowing to the passage from leaking to the outside.
  • the sealing portion may include a first seating groove formed on at least one of an engagement surface of the fixed plate and an engagement surface of the rotation plate, the recess being formed along the outer side of the passage, A second sealing member recessed along the inside of the passage on at least one of the coupling surfaces of the passage, a first sealing member seated in the first seating groove, and a second sealing member seated in the second seating groove can do.
  • the apparatus may further include a positioning unit that disposes the first seating groove, the passage, and the second seating groove concentrically, wherein the positioning unit includes a positioning groove formed in the fixing plate, A positioning hole formed in the plate, and a positioning pin penetrating the positioning hole and coupled to the positioning groove, wherein the positioning pin can be removed after coupling the fixing plate and the rotating plate .
  • the head portion irradiates a laser beam
  • a first through hole is formed in the center portion of the fixing plate so as to penetrate the laser beam
  • a second through hole is formed in the center plate, A through hole may be formed.
  • a protective gas supply and fume removing apparatus which is mounted on a molding processing apparatus including a head, includes a stationary plate, a rotary plate, And a fume removing passage portion.
  • the fixing plate is coupled to the head portion.
  • the rotating plate is rotatably coupled to the fixed plate.
  • the protective gas supply passage portion is formed on at least one of an engagement surface of the fixed plate and an engagement surface of the rotary plate and has a protective gas supply passage for supplying a protective gas.
  • the fume removing passage portion is formed on at least one of an engaging surface of the fixed plate and an engaging surface of the rotating plate, and the fume is removed.
  • the protective gas supply passage includes a protective gas supply hole communicating with the upper surface of the fixed plate and the protective gas supply passage, the protective gas supply hole being provided with a protective gas, And a protective gas discharge hole communicating the passage and discharging the protective gas.
  • the fume removing passage communicates with the lower surface of the rotating plate and the fume removing passage, and communicates the fume inlet hole into which the fume flows, and the upper surface of the fixing plate and the fume removing passage, And may include a fume discharge hole to be discharged.
  • the protective gas supply passage and the fume removing passage may be concentrically arranged.
  • the apparatus further includes a positioning unit arranged to concentrically form the protective gas supply passage and the fume removing passage, wherein the positioning unit includes a positioning groove formed in the fixed plate, a position formed in the rotation plate And a positioning pin inserted into the positioning groove through the positioning hole, and the positioning pin can be removed after the fixing plate and the rotating plate are coupled.
  • the positioning unit includes a positioning groove formed in the fixed plate, a position formed in the rotation plate And a positioning pin inserted into the positioning groove through the positioning hole, and the positioning pin can be removed after the fixing plate and the rotating plate are coupled.
  • the cross-sectional area of the humidifying passage may be larger than the cross-sectional area of the protective gas supply passage.
  • the protective gas supply passage may be disposed inside the fume removing passage.
  • the sealing plate may further include a sealing portion provided between the fixing plate and the rotation plate, for preventing leakage of the protection gas and the fumes flowing to the protection gas supply passage and the fume removing passageway to the outside .
  • the sealing portion may include a first seating groove formed on at least one of a coupling surface of the fixed plate and a coupling surface of the rotary plate so as to be concaved along the outer side of the humidifying passage, Wherein at least one of the engagement surfaces of the rotation plate and the rotation plate is provided with a second seating groove recessed along the inside of the protective gas supply passage on at least one of the engagement surfaces of the rotation plate, A third sealing member recessed along the space between the fume removing passages, a first sealing member seated in the first seating groove, a second sealing member seated in the second seating groove, and a second sealing member seated in the third seating groove And a third sealing member.
  • the head portion irradiates a laser beam
  • a first through hole is formed in the center portion of the fixing plate so as to penetrate the laser beam
  • a second through hole is formed in the center plate, A through hole may be formed.
  • it may further comprise a cam follower that rotatably couples the rotating plate to the stationary plate.
  • the fixed plate further includes a stepped portion protruding along the outer and inner peripheries
  • the rotating plate further includes a plurality of mounting recess portions embedded in the outer and inner upper surfaces
  • a fixing block installed on the mounting groove to fix the roller.
  • the fixing block may include a roller that is installed on an upper surface of the step portion and is rotated along an upper surface of the step portion.
  • the upper surface of the stationary plate may be provided with a lubricant supply hole for supplying lubricant to a portion where the stationary plate and the rotary plate are coupled.
  • the rotary protective gas supply and fume removal device can supply the protection gas and remove the fume through one device, thereby reducing the size and manufacturing cost of the device.
  • the rotary protective gas supply and fume removing apparatus is configured such that the rotary plate is rotatably coupled to the stationary plate using a simple structure of the cam follower, so that the rotary plate can be easily disassembled and assembled with respect to the stationary plate It has a convenient maintenance effect.
  • the rotary type protective gas supply and fume removal device is provided in the positioning part, so that the protection gas passage and the fume removal passage can be easily coupled to each other so as to have a concentric circle.
  • FIG. 1 is a schematic view of a rotating type protective gas supply and fume removing apparatus according to an embodiment of the present invention mounted on a three-dimensional molding processing apparatus.
  • FIG. 2 is an exploded perspective view in which the fixing plate and the rotary plate are disassembled in the rotary type protective gas supply and fume removing apparatus of FIG. 1;
  • FIG. 3 is a perspective view showing an example of a cross section of the rotatable protective gas supply and fume removal device of FIG.
  • FIG. 4 is a perspective view showing another example of a cross section of the rotatable protective gas supply and fume removing device of FIG. 1;
  • FIG. 5 is a cross-sectional view showing the structure of a positioning unit of the rotary type protective gas supply and fume removal apparatus of FIG.
  • FIG. 6 is an exploded perspective view of a rotatable protective gas supply and fume removing apparatus according to another embodiment of the present invention in which a stationary plate and a rotary plate are disassembled.
  • FIG. 6 is an exploded perspective view of a rotatable protective gas supply and fume removing apparatus according to another embodiment of the present invention in which a stationary plate and a rotary plate are disassembled.
  • FIG. 7 is a perspective view showing an example of a cross section of the rotatable protective gas supply and fume removal device of FIG. 6;
  • FIG. 8 is a perspective view showing another example of a cross section of the rotatable protective gas supply and fume removal device of FIG. 6; FIG.
  • FIG. 1 is a schematic view of a rotary type protective gas supply and fume removal device according to an embodiment of the present invention mounted on a three-dimensional molding processing apparatus
  • FIG. 2 is a cross- Fig. 6 is an exploded perspective view of the removal device in which the fixing plate and the rotary plate are disassembled.
  • the rotatable protective gas supply device supplies a protective gas to a peripheral portion of a wire melted by a laser beam in a laser welding equipment, a three-dimensional printing equipment, or the like, (11) for irradiating a laser beam (L) onto a molding (M) to be processed on a stage (S), and a head unit And a wire feeding part 12 for supplying wire to the fixing plate 100 and the rotation plate 200.
  • the fixing plate 100 is coupled to the head portion 11 and the first through hole 101 is formed in the central portion so that the laser beam L irradiated from the head portion 11 passes through the center portion.
  • a fixing member 110 for fixing the fixing plate 100 to the head part 11 may be provided on the upper surface of the fixing plate 100.
  • a first common hole 320 may be formed on the upper surface of the fixing plate 100 to supply a protection gas to be described later or to discharge fumes.
  • the rotation plate 200 is rotatably coupled to the fixed plate 100 and is coupled to a lower surface of the rotation plate 200 by a motor (not shown) (Not shown) may be provided.
  • the rotation plate 200 may have a second through-hole 201 formed in the center thereof and aligned with the first through-hole 101.
  • the rotary plate 200 and the rotary member can be coupled by bolts (not shown), and the wire supply unit 12 can be mounted on the lower surface of the rotary member.
  • a second common hole 330 may be formed on the lower surface of the rotary plate 200, through which a protective gas to be described later is discharged or fumes are introduced.
  • the common passage part 300 is configured to supply the protective gas to the periphery of the wire supplying part 12 and to remove the fumes generated by the laser welding by receiving the protective gas from the outside. Includes a passageway 310 and a first common hole 320 and a second common hole 330.
  • the passage 310 is formed on the engagement surface 102 of the fixed plate 100 to which the rotation plate 200 is coupled and is formed concavely along the circumferential direction of the rotation plate 200, And is coupled to the fixing plate 100 to have a closed structure. At this time, the protective gas supplied into the passages 310 may flow or the removed fumes may flow.
  • the first common hole 320 is formed so as to communicate with the upper surface of the fixing plate 100 and the passage 310 so that a protective gas is supplied from the outside or is introduced into the passage 310 by the second common hole 330 The fume may be discharged to the outside.
  • the second common hole 330 is formed to communicate with the lower surface of the rotary plate 200 and the passage 310 so that the protective gas supplied to the passage 310 is discharged by the first common hole 320, Fumes may enter.
  • the protective gas is supplied from the outside through the first common hole 320, Through the second common hole 330 to the periphery of the wire feeder 12.
  • the common passage portion 300 When the common passage portion 300 is used in the process for removing fumes, the fumes generated by laser welding are introduced into the second common hole 330, and the introduced fumes pass through the passages 310, And can be discharged to the common hole 330.
  • FIG. 3 is a perspective view showing an example of a cross section of the rotatable protective gas supply and fume removal device of FIG.
  • the sealing part 400 is provided between the fixing plate 100 and the rotary plate 200 so as to prevent the protective gas or the fume flowing to the passage 310 from leaking to the outside, do.
  • the sealing part 400 includes a first seating groove 410, a second seating groove 420, and a first sealing member 430 and a second sealing member 440.
  • the first seating groove 410 is formed on the mating surface 102 of the fixing plate 100 and is concaved along the outside of the passage 310.
  • the second seating groove 420 is formed on the fixing plate 100 And may be formed concavely along the inner side of the passageway 310. As shown in Fig.
  • the first sealing member 430 is installed to be seated in the first seating groove 410 so that the protective gas or the fume flowing to the passage 310 can be prevented from leaking to the outside of the passage 310.
  • the second sealing member 440 is installed to be seated in the second seating groove 420 so that the protective gas or the fume flowing into the passage 310 can be prevented from leaking to the inside of the passage 310.
  • the first sealing member 430 and the second sealing member 440 are made of a flexible material having a relatively low coefficient of friction with the rotary plate 200 and the fixing plate 100 and capable of providing a sufficient sealing force.
  • the first sealing member 430 and the second sealing member 440 are pressed by the fixing plate 100 and the rotating plate 200 and the first sealing member 430 and the second sealing member 430,
  • the sealing member 440 may be installed in the first seating groove 410 and the second seating groove 420 in a pressed state. Accordingly, it is possible to further prevent the leakage of the protective gas or the fumes flowing into the passage 310.
  • the sealing part 400 blocks the outside of the passage 310 by the first sealing member 430 to prevent the protective gas or the fumes flowing into the passage 310 from leaking out of the passage 310
  • the second sealing member 440 blocks the inside of the passage and prevents the second sealing member 440 from flowing out to the inside of the passage 310.
  • FIG. 4 is a perspective view showing another example of a cross section of the rotatable protective gas supply and fume removing device of FIG. 1;
  • the passage and the seating groove may be formed on the mating surface 202 of the rotary plate 200.
  • the common passage portion 301 includes a passage 311, a first common hole 321, and a second common hole 331.
  • the common passage portion 301 includes a passage 311, a first common hole 321, and a second common hole 331.
  • the passage 311 may be formed on the mating surface 202 of the rotary plate 200 to which the stationary plate 100 is coupled.
  • the first common hole 321 is formed so as to communicate with the upper surface of the fixed plate 100 and the passage 311.
  • the second common hole 331 is communicated with the lower surface of the rotary plate 200 and the passage 311, respectively.
  • the passage 311, the first common hole 321, and the second common hole 331 are formed only in different positions, and the passages 310, (320) and the second common hole (330).
  • the sealing part 400 may be formed on the rotary plate 200 and includes a first seating groove 411, a second seating groove 421, a first sealing member 431, And a second sealing member (441).
  • the first seating groove 411 is formed on the coupling surface 202 of the rotary plate 200 and the second seating groove 421 is formed on the coupling surface 202 of the rotary plate 200. That is, the first seating groove 411 may be formed on the coupling surface 202 of the rotary plate 200 along the outer side of the passage 311, And may be formed concavely along the inner side of the passage 311 on the engagement surface 202 of the rotary plate 200.
  • the first sealing member 431 is installed to be seated in the first seating groove 411 and the second sealing member 441 is installed to be seated in the second seating groove 421.
  • first seating groove 411 the functions of the first seating groove 411, the second seating groove 421, the first sealing member 431, and the second sealing member 441 are different only in the formation position,
  • the passage may be formed on both the mating surface 202 of the rotary plate 200 and the mating surface 102 of the stationary plate 100, and likewise the sealing portion 400 And may be formed on both the coupling surface 202 of the rotary plate 200 and the coupling surface 102 of the fixed plate 100.
  • FIG. 5 is a cross-sectional view showing the structure of a positioning unit of the rotary type protective gas supply and fume removal apparatus of FIG.
  • the present embodiment further includes a positioning unit 800 for arranging the first seating groove 410 and the passage 310 and the second seating groove 420 concentrically.
  • the positioning unit 800 may include a positioning groove 810, a positioning hole 820, and a positioning pin 830.
  • the positioning groove 810 may be formed in the fixing plate 100 and may be concave in the top surface direction on the lower surface of the fixing plate 100.
  • the positioning hole 820 may be formed in the rotary plate 200 and may extend through the lower surface and the upper surface of the rotary plate 200.
  • the positioning pin 830 may be coupled to the positioning groove 810 through the positioning hole 820.
  • the engaging positions of the rotating plate 200 are matched with the fixing plate 100, and then the positioning pins 830 are rotated on the rotating plate 200,
  • the rotation plate 200 is fixed to the fixing plate 100 when the positioning plate 810 is formed in the positioning hole 820 and is coupled to the positioning groove 810 formed in the fixing plate 100.
  • the cam follower 500 rotatably couples the rotation plate 200 to the fixed plate 100.
  • the cam follower 500 includes a roller 510 and a fixing block 520.
  • a stepped portion 120 protruding along the outer and inner peripheries of the fixed plate 100 is provided.
  • the rotary plate 200 has a plurality of recessed portions formed on the outer and inner upper surfaces An installation groove 210 may be provided.
  • the roller 510 may be installed on the upper surface of the step 120 and rotated together with the rotation plate 200 along the upper surface of the step 120.
  • the fixing block 520 is installed in the mounting recess 210 to fix the roller 510. At this time, although not shown, the fixing block 520 may be fastened to the mounting groove 210 by a bolt, which is a separate fastening member, and fixed.
  • the rotating plate 200 can be rotated with respect to the fixed plate 100, There is an advantage that the rotation plate 200 can be easily disassembled and assembled when exchange or repair is required.
  • FIG. 6 is an exploded perspective view of a rotatable protective gas supply and fume removing apparatus according to another embodiment of the present invention in which a stationary plate and a rotating plate are disassembled.
  • FIG. 7 is a cross- As shown in Fig.
  • the rotary type protective gas supply and fume removal apparatus includes a fixed plate 100, a rotary plate 200 and a protective gas supply passage 600, A sealing portion 900, and a cam follower 500.
  • the protection gas is supplied or the fume is removed through one common passage (300 in FIG. 3).
  • the protection gas supply passage portion 600 to which the protection gas is supplied and the protection gas supply passage portion And a fume removing passageway (700) for removing fumes.
  • the fixing plate 100 and the rotation plate 200 according to the present embodiment are the same as those of the fixing plate 100 and the rotation plate 200 described with reference to FIGS. 1 to 5, , And redundant description is omitted.
  • a protective gas supply hole 620 for supplying a protective gas to be described later, a fume discharge hole 730 for discharging the fume, and a positioning groove 810 are formed on the upper surface of the fixed plate 100, A protective gas supply hole 620 for supplying a protective gas to be described later, a fume inlet hole 720 for introducing the fume, and a positioning hole 820 are formed on the lower surface of the rotary plate 200.
  • the protective gas supply passage 600 is provided for supplying a protective gas to the periphery of the wire supply unit 12 by receiving a protective gas from the outside and is provided with a protective gas supply passage 610, And includes a gas discharge hole 630.
  • the protective gas supply passage 610 is formed on the coupling surface 102 of the fixed plate 100 to which the rotary plate 200 is coupled and is formed concavely along the circumferential direction of the rotary plate 200, (200) is coupled to the fixed plate (100) to have a closed structure. At this time, the protective gas supplied from outside may flow into the protective gas supply passage 610.
  • the protective gas supply hole 620 is formed to communicate with the upper surface of the fixed plate 100 and the protective gas supply passage 610 so that a protective gas can be supplied from the outside.
  • the protective gas discharge hole 630 is formed to communicate with the lower surface of the rotary plate 200 and the protective gas supply passage 610 so that the protective gas supplied to the protective gas supply passage 610 can be discharged.
  • the fume removing passage 700 is a structure for removing fumes generated by laser welding and includes a fume removing passage 710 and a fume inlet 720 and a fume outlet 730.
  • the fume removing passage 710 is formed on the engaging surface 102 of the fixing plate 100 to which the rotating plate 200 is coupled and is formed concavely along the circumferential direction of the rotating plate 200, Is attached to the fixing plate 100 to have a sealing structure. At this time, the fume that has been removed to the inside of the fume removing passageway 710 may flow.
  • the fume inlet hole 720 is formed to communicate with the lower surface of the rotary plate 200 and the fume removing passageway 710 so that the fume can be introduced from the outside.
  • the fume discharge hole 730 is formed to communicate with the upper surface of the fixed plate 200 and the fume removing passage 710 so that the fume introduced into the fume removing passage 710 can be discharged to the outside.
  • the protective gas supply passage 610 and the fume removing passage 710 may be concentrically arranged. This is to ensure a stable flow path to the protective gas flowing into the protective gas supply passage 610 and the fumes flowing into the fume removing passage 710.
  • the apparatus further includes a positioning unit 800 for arranging the protective gas supply passage 610 and the fume removing passage 710 so as to be concentric.
  • the positioning unit 800 may include a positioning groove 810, a positioning hole 820, and a positioning pin 830.
  • the positioning groove 810 may be formed in the fixing plate 100 and may be concave in the top surface direction on the lower surface of the fixing plate 100.
  • the positioning hole 820 may be formed in the rotary plate 200 and may extend through the lower surface and the upper surface of the rotary plate 200.
  • the positioning pin 830 may be coupled to the positioning groove 810 through the positioning hole 820.
  • the engaging positions of the rotating plate 200 are matched with the fixing plate 100, and then the positioning pins 830 are rotated on the rotating plate 200,
  • the rotation plate 200 is prevented from moving relative to the fixed plate 100 when the positioning plate 810 is inserted into the positioning groove 810 formed in the fixed plate 100 while passing through the positioning hole 820 formed in the fixed plate 100.
  • the fixing plate 100 and the rotary plate 200 are combined by the cam follower (500 in Fig. 6), the fixing plate 100 is coupled to the head part 11 by the fixing member 110, The positioning pin 830 is removed so that the rotating plate 200 can be rotated with respect to the fixed plate 100.
  • the protective gas supply passage 610 can be disposed inside the humidifying passage 710 and the sectional area of the humidifying passage 710 is formed larger than the cross sectional area of the protective gas supply passage 610 .
  • the fume removing passages 710 are provided in the protective gas supply
  • the fume is dispersed to the outside of the working space by being disposed outside the passage 610.
  • the sectional area of the humidifying passage 710 is formed larger than the protective gas supplying passage 610 So that the amount of fume removal can be increased.
  • the sealing portion 900 is provided between the fixing plate 100 and the rotary plate 200, and the protection gas supply passage 610 and the fume removing passage 710 from leaking out to the outside.
  • the sealing portion 900 includes a first seating groove 910, a second seating groove 920, a third seating groove 930, a first sealing member 940, a second sealing member 950, And a third sealing member 960.
  • the first seating groove 910 is formed on the mating surface 102 of the fixing plate 100 and may be recessed along the outside of the humidifying passage 710.
  • the second seating groove 920 is formed on the mating surface 102 of the fixing plate 100 and may be recessed along the inside of the protective gas supply passage 610.
  • the third seating groove 930 is formed on the mating surface 102 of the fixing plate 100 and may be recessed along the space between the protective gas supply passage 610 and the humidifying passage 710.
  • the first sealing member 940 is installed to be seated in the first seating groove 910 to prevent the fume from leaking to the outside of the fume removing passageway 710.
  • the second sealing member 950 is installed to be seated in the second seating groove 920 to prevent the protective gas from leaking into the protective gas supply passage 610.
  • the third sealing member 960 is installed in the third seating groove 930 so that the fume leaks into the humidifying passage 710 and the protective gas leaks to the outside of the protective gas supplying passage 610 prevent. That is, the third sealing member 960 prevents the protective gas and the fume from leaking and mixing.
  • the sealing part 900 prevents the first sealing member 940 from blocking the outside of the fume removing passageway 710, so that the fumes flowing into the fume removing passageway 710 leaks to the outside of the fume removing passageway 710
  • the second sealing member 950 blocks the inside of the protective gas supply passage 610 so that the protective gas flowing into the protective gas supply passage 610 flows out to the inside of the protective gas supply passage 610 ≪ / RTI >
  • the third sealing member 960 blocks the inside of the humidifying passage 710 and blocks the outside of the protective gas supplying passage so that the fumes flowing into the humidifying passage 710 are separated from the humidifying passage 710, And prevents the fume flowing into the protective gas supply passage 610 from leaking to the outside of the protective gas supply passage 610 to prevent the protective gas from being mixed with the fume.
  • the first sealing member 940, the second sealing member 950 and the third sealing member 960 are pressed by the fixing plate 100 and the rotation plate 200.
  • the pressing force is applied to the first sealing member 940,
  • the sealing member 940 and the second sealing member 950 and the third sealing member 960 are pressed into the first seating groove 910 and the second seating groove 920 and the third seating groove 930 Respectively. Accordingly, it is possible to further prevent the leakage of the protective gas flowing into the protective gas supply passage 610 and the fumes flowing into the fume retaining passage 710.
  • the cam follower 500 rotatably engages the rotation plate 200 with respect to the fixed plate 100.
  • the cam follower 500 includes a roller 510 and a fixing block 520.
  • FIG. 8 is a perspective view showing another example of a cross section of the rotatable protective gas supply and fume removal device of FIG.
  • the protective gas supply passage, the fume removing passage, and the seating groove are formed on the mating surface 202 of the rotary plate 200 .
  • the protective gas supply passage portion 601 includes a protective gas supply passage 611, a protective gas supply hole 621, and a protective gas discharge hole 631.
  • the protective gas supply passage 611 may be formed on the coupling surface 202 of the rotary plate 200 to which the fixed plate 100 is coupled.
  • the protective gas supply hole 621 is formed to communicate with the upper surface of the fixed plate 100 and the protective gas supply passage 611.
  • the protective gas discharge hole 631 is formed in the lower surface of the rotary plate 200 And may be formed to communicate with the gas supply passage 611.
  • the protection gas supply passage 611, the protection gas supply hole 621, and the protection gas discharge hole 631 are formed only at different positions, The protective gas supply hole 620, and the protective gas discharge hole 630, as shown in FIG.
  • the fume removing passage 701 includes a fume removing passage 711, a fume inlet hole 721, and a fume discharge hole 731.
  • the humidifying passage 711 may be formed on the mating surface 202 of the rotary plate 200 to which the fixing plate 100 is coupled.
  • the fume inlet hole 721 is formed to communicate with the lower surface of the rotary plate 200 and the fume removal passage 711.
  • the fume discharge hole 731 is formed in the upper surface of the fixing plate 200, 711).
  • the fume removing passages 711, the fume removing holes 721 and the fume discharging holes 731 are only formed at different positions, and the fume removing passages 710, And performs substantially the same function as the fume inlet hole 720 and the fume outlet hole 730.
  • the sealing portion 901 may be formed on the rotary plate 200 and may include a first seating groove 911, a second seating groove 921, a third seating groove (not shown) 931, a first sealing member 941, a second sealing member 951, and a third sealing member 961.
  • the first seating groove 911 is formed on the coupling surface 202 of the rotary plate 200 and the second seating groove 921 is formed on the coupling surface 202 of the rotary plate 200, 3 seating grooves 931 are also formed in the mating surfaces 202 of the rotating plate 200.
  • the first seating groove 911 may be formed on the coupling surface 202 of the rotary plate 200 along the outer side of the fume removing passageway 711, and the second seating groove 921 may be formed,
  • the third seating groove 931 may be formed in the coupling surface 202 of the rotary plate 200 along the inner side of the protective gas supply passage 611, And may be recessed along the surface 202 between the protective gas supply passage 611 and the humidification passage 711.
  • the first sealing member 941 is installed to be seated in the first seating groove 911 and the second sealing member 951 is installed to be seated in the second seating groove 921,
  • the member 961 is installed in the third seating groove 931.
  • first seating groove 911, the second seating groove 921, the third seating groove 931, the first sealing member 941, the second sealing member 951 And the third sealing member 961 are different from each other only in the forming position, and the functions, materials, and the like are the same as those described with reference to FIG. 7 for the first seating groove 910, the second seating groove 920, The third sealing groove 930, the first sealing member 940, the second sealing member 950, and the third sealing member 960, respectively.
  • the cam follower 500 has the same structure and function as the cam follower 500 described above in the previous embodiment, and a detailed description thereof will be omitted.
  • the protective gas which is connected to the protective gas discharge hole 630 of the protective gas supply passage 600 and discharged through the protective gas discharge hole 630, And a guide tube for guiding the guide tube.
  • the guide tube can prevent the guide tube from being twisted as it is rotated together with the wire supply portion (12 in Fig. 1) mounted on the rotating member to be rotated.
  • a lubricating oil supply hole may be formed on the upper surface of the fixed plate 100 to supply lubricating oil to a portion where the fixed plate 100 and the rotating plate 200 are coupled.
  • the frictional force generated when the rotating plate 200 is rotated with respect to the stationary plate 100 can be reduced, and the rotating plate 200 can be smoothly rotated with respect to the stationary plate 100 .
  • the fume can be removed simultaneously with the supply of the protective gas through one apparatus, thereby reducing the size and manufacturing cost of the apparatus There is an effect.
  • the rotary protective gas supply and fume removing apparatus is configured such that the rotary plate is rotatably coupled to the stationary plate using a simple structure of the cam follower, so that the rotary plate can be easily disassembled and assembled with respect to the stationary plate It has a convenient maintenance effect.
  • the rotary type protective gas supply and fume removal device is provided in the positioning part, so that the protection gas passage and the fume removal passage can be easily coupled to each other so as to have a concentric circle.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • Laser Beam Processing (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

La présente invention concerne un dispositif tournant d'alimentation en gaz de protection et d'élimination des fumées, qui est monté dans un dispositif de traitement de sculpture comprenant une partie tête, et qui comporte une plaque de fixation, une plaque rotative et une partie de passage commun. La plaque de fixation est accouplée à la partie tête. La plaque rotative est accouplée rotative à la plaque de fixation. La partie de passage commun est formée sur une surface d'accouplement de la plaque de fixation et/ou sur une surface d'accouplement de la plaque rotative, et comporte un passage permettant d'introduire un gaz de protection ou d'éliminer les fumées.
PCT/KR2018/010642 2017-09-12 2018-09-11 Dispositif tournant d'alimentation en gaz de protection et d'évacuation des fumées Ceased WO2019054728A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112018005064.5T DE112018005064T5 (de) 2017-09-12 2018-09-11 Drehvorrichtung zum Zuführen von Schutzgas und Abziehen von Rauch

Applications Claiming Priority (2)

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KR10-2017-0116403 2017-09-12
KR1020170116403A KR102043911B1 (ko) 2017-09-12 2017-09-12 회전형 보호가스 공급 및 흄 제거장치

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KR (1) KR102043911B1 (fr)
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CN114378446A (zh) * 2022-03-22 2022-04-22 苏州密尔光子科技有限公司 激光加工辅助装置、方法和具有该装置的激光设备

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KR102269555B1 (ko) 2020-08-20 2021-06-28 주식회사 포스코플랜텍 밀폐공간의 용접가스 제거방법

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CN114378446A (zh) * 2022-03-22 2022-04-22 苏州密尔光子科技有限公司 激光加工辅助装置、方法和具有该装置的激光设备
CN114378446B (zh) * 2022-03-22 2022-07-29 苏州密尔光子科技有限公司 激光加工辅助装置、方法和具有该装置的激光设备

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KR102043911B1 (ko) 2019-11-13
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