EP3113900A1 - Buse à poudre, unité réceptrice et tête d'usinage pour un dispositif destiné à l'usinage de matériaux par laser - Google Patents

Buse à poudre, unité réceptrice et tête d'usinage pour un dispositif destiné à l'usinage de matériaux par laser

Info

Publication number
EP3113900A1
EP3113900A1 EP15707918.7A EP15707918A EP3113900A1 EP 3113900 A1 EP3113900 A1 EP 3113900A1 EP 15707918 A EP15707918 A EP 15707918A EP 3113900 A1 EP3113900 A1 EP 3113900A1
Authority
EP
European Patent Office
Prior art keywords
receiving
sleeve
powder nozzle
opening
clamping
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.)
Withdrawn
Application number
EP15707918.7A
Other languages
German (de)
English (en)
Inventor
Thomas Peters
Tobias LEUPPI
Andreas Gisler
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.)
Oerlikon Metco AG
Original Assignee
Oerlikon Metco AG
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 Oerlikon Metco AG filed Critical Oerlikon Metco AG
Publication of EP3113900A1 publication Critical patent/EP3113900A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B23K26/144—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 particles, e.g. powder
    • 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
    • B23K26/1482—Detachable nozzles, e.g. exchangeable or provided with breakaway lines
    • 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

Definitions

  • the invention relates to a powder nozzle for a device for a laser device
  • the laser material processing can be carried out in particular as laser beam deposition welding with powder.
  • This method is used for example for Instantsville, wear and corrosion protection in many areas such as tooling, mold making, engine construction and mechanical engineering.
  • a melt spot is produced with a laser beam on a component and fed through a powder nozzle, the powder from the filler to the melt spot.
  • the supplied powder then also melts and combines with the molten one
  • weld bead Base material of the component. By moving the unit of laser and powder nozzle over the component creates a so-called weld bead.
  • the individual weld beads can be placed so close to each other that a closed layer is formed on the component, which can be reworked to increase the surface quality.
  • the powder nozzles used are exposed to high temperatures and are subject to wear by the powder conveyed through them. In addition, wholly or partially melted powder, which rebounds from the component, adhere to the powder nozzle. These attachments must be removed regularly to ensure trouble-free operation
  • Powder nozzles for devices for laser material processing in particular be made interchangeable with the laser for laser deposition welding with powder.
  • the device has a powder nozzle with a
  • the beam passageway has a beam entrance aperture and a beam exit aperture opposite in an axial direction.
  • the powder nozzle also has a
  • the receiving sleeve has distributed at its periphery a plurality of holes in the grub screws can be screwed. The positions of the holes are chosen so that when the powder nozzle inserted the grub screws at
  • Laser material processing has a beam passage which has a beam entrance opening and one in an axial direction
  • the powder nozzle also has a receiving pin on which the
  • Beam entrance opening is formed.
  • the receiving pin is a fixing or holding the powder nozzle, in particular in one
  • the receiving pin is designed so that an outer contour of the receiving pin in a direction
  • Beam entrance opening arranged insertion in the direction
  • Jet entrance aperture monotonically tapered.
  • Fixing agents are fixed.
  • the powder nozzle can be particularly easily fixed in the receiving unit at the correct position.
  • the rejuvenation results in a very low susceptibility to
  • the powder nozzle is used in particular during laser deposition welding with powder.
  • the use in other laser material processing, such as laser cutting or laser welding is also possible. In these cases, no powder is passed through the powder nozzle.
  • Receiving pin circular cross-sections which change due to the described taper of the insertion in the axial direction.
  • the above cross sections are shown as sections through the
  • Insertion region transverse to the axial direction the insertion region is thus rotationally symmetrical with respect to the axial direction.
  • the insertion region is thus at least partially conical.
  • the insertion area and thus the spigot can be made particularly simple by a turning operation. This is especially true when the entire outer contour of the powder nozzle is rotationally symmetrical.
  • the powder nozzle usually does not have to be installed in a specific angular position to the receiving sleeve. If, for certain reasons, an insertion in a certain angular position is necessary, the
  • Powder nozzle and the receiving sleeve have a groove and a corresponding nose for positioning.
  • an outer contour of the insertion of the receiving pin has a taper angle between 2 and 8 °.
  • the taper angle is formed between a tapered portion of the insertion and the axial direction.
  • Expansion is in particular carried out as a circumferential collar, which has no connections, for example for the powder or a cooling liquid. The widening decreases in particular in the direction of the jet exit opening, so that the powder nozzle does not have too much material and therefore mass.
  • Pulverdüse a device for a laser material processing solved with a receiving sleeve.
  • the receiving sleeve has a receiving space with an insertion opening and an opposite in an axial direction transition opening.
  • the receiving space is intended to a Einsteck Scheme a receiving pin of the powder nozzle in a
  • an inner contour of the receiving sleeve tapers at least in a section in the direction of the transition opening.
  • the insertion direction runs parallel to the axial direction described above and is oriented from the insertion opening to the transition opening. In the operation of the device occurs the Laser beam via the transition opening in the receiving sleeve and exits through the insertion.
  • a clamping nut is arranged in the region of the insertion opening of the receiving sleeve, which can be displaced relative to the receiving sleeve in the insertion direction and counter to the insertion direction.
  • a clamping sleeve is arranged within the receiving sleeve.
  • the clamping nut has an inner slope and the clamping sleeve a
  • Outer bevel which are designed and arranged so that upon displacement of the clamping nut in a clamping direction, the clamping sleeve is pressed transversely to the insertion direction while a powder nozzle inserted into the clamping sleeve is fixed.
  • the receiving sleeve has an external thread and the clamping nut a corresponding
  • Powder nozzle can be achieved.
  • the clamping direction corresponds in particular to the insertion direction.
  • the clamping nut may have holes or flat surfaces on its circumference, via which a tool for tightening or loosening the clamping nut can be attached.
  • the clamping sleeve is designed as a slotted sleeve.
  • the slots run in particular in the axial direction.
  • the clamping sleeve may for example have 4 or more slots.
  • Such a clamping sleeve can be compressed well, allowing a secure fixation of the powder nozzle.
  • such a clamping sleeve is simple and inexpensive to produce.
  • the clamping sleeve has an external thread and the receiving sleeve has an internal thread, by means of which the clamping sleeve can be connected to the receiving sleeve.
  • the external thread of the clamping sleeve is in particular at its in the direction of the transition opening of the Receiving sleeve oriented end arranged. This allows a simple and secure fixation of the clamping sleeve in the receiving sleeve.
  • the stated object is also achieved by a machining head for a device for laser material processing with a powder nozzle and a receiving unit with the features described above.
  • the powder nozzle has a widening and the receiving unit a clamping nut with a Ausschubschräge. These are designed and arranged so that when moving the powder nozzle
  • the powder nozzle is also moved against the insertion. This is when moving the clamping nut counter to the insertion, ie in particular when loosening or unscrewing the clamping nut on the
  • Fig. 1 is a side view of a powder nozzle for a device for
  • Fig. 2 is a front view of the powder nozzle of Fig. 1 and a section through a machining head for a device for laser deposition welding with powder with a powder nozzle and a receiving unit.
  • Powder nozzle 10 is rotationally symmetrical with respect to an axial direction 13.
  • the entire spigot 1 1 thus has transversely to
  • the powder nozzle 10 can be fixed in a receiving sleeve 25 shown only in Fig. 3 and thus the powder nozzle 10 are held. This can be the
  • Pulverdüse 10 in a plug 14, which is parallel to the axial direction 13, are inserted into the receiving sleeve 25.
  • the spigot 1 1 has three different areas. It has a plug-in area 16, which contains the beam input opening 23 and is thus arranged in the direction of the beam input opening 23.
  • the outer contour of the insertion portion 16 of the receiving pin 1 1 is not cylindrical, but tapers monotonously in the insertion direction 14 and thus in the direction of the beam entrance opening 23.
  • a taper angle a which forms between the outer contour of the insertion portion 16 and the axial direction 13, in the in Fig. 1 illustrated powder nozzle 10 3 °.
  • the taper angle can also be between 2 ° and 8 °. He is thus chosen so that when inserting the receiving pin 1 1 occurs in a corresponding receiving sleeve self-locking.
  • the insertion portion 16 of the receiving pin 1 for example, a diameter between 20 and 50 mm and the head portion 12 have a maximum diameter between 40 and 70 mm.
  • Overall length of the powder nozzle 10 may for example be between 60 and 90 mm.
  • the head part 12 like the entire powder nozzle 10, has an outer contour with circular diameters.
  • the beam outlet opening 21 is centrally arranged, from which emerges from the nozzle head 10 during operation of the device, the laser beam.
  • the three powder outlet openings 15 are arranged uniformly distributed around the jet outlet opening 21.
  • Beam passage 24 The beam entrance opening 23 and the
  • Beam outlet opening 21 are thus arranged opposite one another in the axial direction 13.
  • the insertion region 16 of the receiving pin 1 1 tapers monotonically in the direction of the jet entrance opening 23, as described for FIG. 1.
  • the machining head 22 also has an insertion sleeve 25, which is designed mainly hollow cylindrical and thus a
  • Receiving space 26 forms with an insertion opening 27, in which the
  • Powder nozzle 10 can be inserted. In the axial direction 13
  • the insertion sleeve 25 opposite the insertion sleeve 25 has a transition opening 28, via which the laser beam enters the receiving sleeve 25 during operation of the device, which it leaves again via the insertion opening 27.
  • Inner contour of the receiving sleeve 25 tapers in a region in which the insertion region 16 of the receiving pin 1 1 dips, continuously in the direction of the transition opening 28.
  • Receiving sleeve 25 corresponds to the taper of the outer contour of the insertion portion 16 of the receiving pin 1 first Between the receiving sleeve 25 and the insertion portion 16 of the
  • Recording pin 1 1 is a slotted clamping sleeve 29 is arranged.
  • the clamping sleeve 29 has mainly a hollow conical Grundfornn, which widens in the direction of insertion opening 27. It has a total of 4 slots, which extend in the insertion direction 14.
  • the clamping sleeve 29 Towards the transition opening 28, the clamping sleeve 29 has an external thread 30. About this
  • the two mentioned threads 30, 31 are designed as left-hand thread.
  • the receiving sleeve 25 has in the region of the insertion opening 27 also has an external thread 32 which with an internal thread 33 a
  • Clamping nut 34 cooperates. About the external thread 32 and the internal thread 33, the clamping nut 34 can be screwed up and down on the receiving sleeve 25 and thus moved in and against the insertion direction 14 relative to the receiving sleeve 25.
  • the two mentioned threads 32, 33 are designed as right-hand thread.
  • a plurality of bores 35 are arranged distributed on its circumference.
  • the clamping nut 34 also has offset from the insertion direction 14 offset by a circumferential plane inner slope 36.
  • the inner slope 36 is designed so that an inner diameter in the insertion direction 14 increases.
  • the inner slope 36 of the clamping nut 34 cooperates with a corresponding outer slope 37 of the clamping sleeve 29.
  • Receiving sleeve 25 fixed.
  • the receiving sleeve 25, the clamping sleeve 29 and the clamping nut 34 thus form a receiving unit 39 for a powder nozzle 10th
  • the clamping nut 34 also has a plane Ausschubschräge 38, which is arranged at its transition opening 28 opposite the end.
  • the Ausschubschräge 38 is inclined in the insertion direction 14 inwards.
  • the Ausschubschräge 38 of the clamping nut 34 is designed so that it comes when unscrewing the clamping nut 34 of the receiving sleeve 25 at the widening 17 of the receiving shaft 1 1 of the powder nozzle 10 to the plant and the powder nozzle 10 thus also against the insertion direction 14 is moved.
  • the receiving unit 39 formed from receiving sleeve 25, clamping sleeve 29 and clamping nut 34 and the powder nozzle 10 thus form a
  • Processing head 22 for a device for laser beam deposition welding with powder The mounting and dismounting of the powder nozzle 10 runs with it
  • Shank 1 1 of the powder nozzle 10 comes to rest with the inner contour of the clamping sleeve 29. Thus, an axial and radial positioning of the powder nozzle 10 is achieved. Due to the described self-locking between the powder nozzle 10 and receiving or clamping sleeve 25, 29, the powder nozzle 10 remains in the set position, without having to be held. Subsequently, the clamping nut 34 on the
  • the clamping nut 34 is unscrewed from the receiving sleeve 25 and thus at the same time the powder nozzle 10 as described pushed out of the receiving sleeve 25.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

L'invention concerne une buse à poudre, une unité réceptrice et une tête d'usinage pour un dispositif destiné à l'usinage de matériaux par laser. Afin de faciliter le changement de la buse à poudre, un contour externe d'un tenon récepteur (11) de la buse à poudre (10) s'effile de manière constante dans le sens d'enfichage (14), dans une zone d'enfichage (16).
EP15707918.7A 2014-03-04 2015-03-02 Buse à poudre, unité réceptrice et tête d'usinage pour un dispositif destiné à l'usinage de matériaux par laser Withdrawn EP3113900A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14157564 2014-03-04
PCT/EP2015/054237 WO2015132170A1 (fr) 2014-03-04 2015-03-02 Buse à poudre, unité réceptrice et tête d'usinage pour un dispositif destiné à l'usinage de matériaux par laser

Publications (1)

Publication Number Publication Date
EP3113900A1 true EP3113900A1 (fr) 2017-01-11

Family

ID=50193325

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15707918.7A Withdrawn EP3113900A1 (fr) 2014-03-04 2015-03-02 Buse à poudre, unité réceptrice et tête d'usinage pour un dispositif destiné à l'usinage de matériaux par laser

Country Status (7)

Country Link
US (1) US20170066081A1 (fr)
EP (1) EP3113900A1 (fr)
JP (1) JP2017507031A (fr)
CN (1) CN106660172A (fr)
AU (1) AU2015226285A1 (fr)
RU (1) RU2016137480A (fr)
WO (1) WO2015132170A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017215838A1 (de) 2017-09-07 2019-03-07 Sauer Gmbh Austauschbares Optikmodul für eine Laserbearbeitungsmaschine
DE102018118076A1 (de) * 2018-07-26 2020-01-30 Bystronic Laser Ag Laserdüse, Düsenaufnahme, Düsenkupplung und Werkzeugmaschine
FR3088227B1 (fr) * 2018-11-08 2021-05-21 Commissariat Energie Atomique Tete de soudage et/ou de decoupe et dispositif de soudage et/ou de decoupe comprenant une telle tete
DE102019124518A1 (de) * 2019-09-12 2021-03-18 Trumpf Laser- Und Systemtechnik Gmbh Materialabscheidungseinheit mit mehrfacher Materialfokuszone sowie Verfahren zum Auftragschweißen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642202A (en) * 1970-05-13 1972-02-15 Exxon Research Engineering Co Feed system for coking unit
US4794222A (en) * 1986-06-30 1988-12-27 Manabu Funayama Laser beam machining apparatus
JPH04289038A (ja) * 1991-03-15 1992-10-14 Fanuc Ltd レーザ加工可能な複合型工作機械
US5477026A (en) * 1994-01-27 1995-12-19 Chromalloy Gas Turbine Corporation Laser/powdered metal cladding nozzle
US6814316B2 (en) * 2002-08-20 2004-11-09 Terydon, Inc. Two-piece nozzle assembly for use with high pressure fluid cutting systems and bushing for use therewith
US7261302B2 (en) * 2005-03-03 2007-08-28 Kennametal Inc. Collet and lock nut assembly
DE102005058172B4 (de) * 2005-12-05 2008-01-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung für die Lasermaterialbearbeitung
US7358457B2 (en) * 2006-02-22 2008-04-15 General Electric Company Nozzle for laser net shape manufacturing
CN200945546Y (zh) * 2006-08-17 2007-09-12 武汉法利莱切割系统工程有限责任公司 带连接套激光切割喷嘴

Also Published As

Publication number Publication date
CN106660172A (zh) 2017-05-10
US20170066081A1 (en) 2017-03-09
WO2015132170A1 (fr) 2015-09-11
JP2017507031A (ja) 2017-03-16
RU2016137480A (ru) 2018-04-04
AU2015226285A1 (en) 2016-09-29

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