EP4215326A1 - Dispositif et procédé d'usinage d'une pièce - Google Patents

Dispositif et procédé d'usinage d'une pièce Download PDF

Info

Publication number
EP4215326A1
EP4215326A1 EP23152188.1A EP23152188A EP4215326A1 EP 4215326 A1 EP4215326 A1 EP 4215326A1 EP 23152188 A EP23152188 A EP 23152188A EP 4215326 A1 EP4215326 A1 EP 4215326A1
Authority
EP
European Patent Office
Prior art keywords
tool
machining
cutting edge
feeler
workpiece
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.)
Pending
Application number
EP23152188.1A
Other languages
German (de)
English (en)
Inventor
Wilhelm Kalmbach
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.)
Homag GmbH
Original Assignee
Homag GmbH
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 Homag GmbH filed Critical Homag GmbH
Publication of EP4215326A1 publication Critical patent/EP4215326A1/fr
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
    • B27D5/006—Trimming, chamfering or bevelling edgings, e.g. lists

Definitions

  • the invention relates to a device and a method for machining a workpiece.
  • a workpiece is preferably a workpiece made of wood, wood-based material, plastic, composite material or the like, at least in sections.
  • a so-called end mill can be used to form a comparatively small inner radius on a coating material of a workpiece with an inner contour (eg grip strip profile or the like).
  • a tracer roller is used to support the milling cutter relative to the workpiece, and the end mill, which is guided by means of the tracer roller, is guided along the contour of the workpiece.
  • the flexibility of the workpiece or the coating material depends on the type of workpiece material or the coating material (e.g. paper, plastic film, veneer, etc.). With soft or porous wood materials (e.g. chipboard) the resilience is more pronounced than with dense/hard materials (e.g. MDF).
  • the tool or the feeler roller should be replaced with a correspondingly adapted diameter. If the milling cutter penetrates too deeply into the workpiece/coating material, either a larger feeler roller or a smaller milling tool is required and changed accordingly. If there is an overhang, either a smaller feeler roller or a larger milling tool is used.
  • a device for processing preferably plate-shaped workpieces which comprises a feeler roller whose diameter is adjustable. Even if this device has proven itself, it is only suitable for tools with a comparatively large diameter.
  • the invention has for its object to provide a device for machining a workpiece with the different workpiece materials and / or different coating materials can be processed with the same quality and additional set-up times are avoided.
  • Claim 1 provides a corresponding device. Further preferred embodiments are listed in the dependent claims.
  • the device for machining a workpiece has: a tool body, which carries a machining tool, and a feeler device, the feeler device being set up to determine the position of the machining tool relative to the workpiece.
  • the processing tool comprises at least one radially adjustable cutting edge, preferably a plurality of radially adjustable cutting edges.
  • the device Since the at least one cutting edge is adjustable, the device allows flexible use with different materials with high-quality work results. A provision of coordinated tools or feeler devices for different materials is not necessary. There are also no set-up times when changing over to processing with different materials. With small differences in edge thickness (e.g. 1.3mm-1.5mm), a radius run-out towards the narrow surface can be processed with the same quality with the appropriate setting.
  • edge thickness e.g. 1.3mm-1.5mm
  • the design ensures that individual tool cutting edges can be replaced in the event of wear or damage.
  • the cutting edge of the tool can be adjusted essentially perpendicular to an axis of the device. In this way, the effective range of the tool cutting edge can be changed in the radial direction.
  • the cutting edge of the tool can be adjusted in such a way that a tool base diameter is changed.
  • the tool base diameter is the diameter of the tool edge, which is set as the reference diameter of the tool edge for the programming of the control of the machining device. In this way, in combination with the diameter of the feeler device, the position of the cutting edge of the tool relative to the feeler device and thus to the surface of the workpiece can be defined. If the tool cutting edge is thus shifted in the radial direction, the tool base diameter changes.
  • the cutting edge of the tool is prestressed in the radial direction with a spring.
  • the preload thus acts in the direction of the centrifugal forces when the cutting edge rotates about an axis of rotation.
  • the device has an adjustment body that can be displaced in the direction of an axis of the tool body and has a changing inner diameter, in particular an inner cone, with the tool cutting edge(s) being pressed against the inner diameter of the adjustment body. A radial movement of the cutting edge(s) can thus be brought about by axial displacement of the adjustment body.
  • the machining tool is a milling cutter, which preferably has a diameter of ⁇ 20 mm, in particular ⁇ 15 mm, so that comparatively delicate machining processes are carried out can become.
  • the milling cutter is an end mill.
  • the feeler device can be attached to the tool body in order to provide an extremely compact device with precise guidance of the machining tool. According to a modification, however, the feeler device can also be provided separately from the tool body.
  • the feeler device can be formed by one or more ball bearings, the outer ring of which forms an outer diameter of the feeler device. This type of sensing device has proven to be particularly durable and precise.
  • the tool body has a tool receiving section and a feeler device receiving section, with a diameter of the feeler device receiving section being smaller than a diameter of the tool receiving section.
  • the tactile device which is arranged on the tactile device receiving section, can be pushed/pressed against the step formed between the tool receiving section and a tactile device receiving section.
  • a mounting portion for receiving a fastener for mounting the tactile device.
  • a thread is provided for receiving a nut for fastening the feeler device.
  • it is a self-locking thread.
  • a locking ring can be provided as a fastening element for fastening the feeler device.
  • the tool body can have a mount, in particular an HSK mount, in order to be able to securely fasten the device to a processing machine.
  • a cylindrical shaft for example with a keyway, is provided for fastening the device to a processing machine.
  • the tool blade or blades may have a tapered, radiused outer surface. Since the cutting edge of the tool is adjustable, different diameters and/or radii can be milled, for example, depending on the position of such a cutting edge.
  • the milling tool in particular its tool base diameter, can be adjusted according to the flexibility of the scanning device in the workpiece and/or the surface coating and/or the protective film so that the edge is always milled flush and without damaging the top layer on the workpiece.
  • the scanning device supporting the milling tool does not have to be changed when the boundary conditions change. Set-up times can thus be avoided and productivity increased.
  • a processing machine with a processing unit is provided, the processing unit having a device according to one of the preceding aspects.
  • a processing machine can in particular be a woodworking machine.
  • a method for machining a workpiece with a device comprising the following steps: placing the scanning device on a workpiece surface, Machining the workpiece with a cutting edge (21) of the machining tool, and adjusting the cutting edge of the machining tool.
  • the device can have an embodiment according to one of the previously mentioned aspects. Furthermore, it is preferred that the steps are carried out in the order mentioned.
  • a processing device 1 according to the embodiment is used for processing workpieces made of, for example, wood or wood-based material, which are provided with a coating material.
  • the processing device 1 comprises a tool body 10 which has a receiving section 11 (here: HSK25R receptacle) for receiving the tool body 10 at a corresponding interface of a processing machine.
  • a receiving section 11 here: HSK25R receptacle
  • An external thread 10a is provided in the outer peripheral section of the tool body 10, in which an internal thread 15a of an adjustment body 15 engages.
  • the adjusting body 15 extends along an outer circumference of the tool body 10 and has an opposite end--as viewed from the internal thread--an inner cone 15b.
  • the internal thread 15a is designed as a self-locking thread, so that the adjustment body 15 can be held in position.
  • the tool body 10 has a tool receiving section 12 and a feeler receiving section 13, with a diameter of the feeler receiving section 13 being smaller than a diameter of the tool receiving section 12.
  • a thread 14 is provided on an end section of the tool body which is adjacent to the feeler receiving section 13.
  • a tactile device 30 is provided on the tactile device accommodating section 13 .
  • the feeler device comprises a first ball bearing 31 and a second ball bearing 32 .
  • a nut 34 (fastening element) is provided for fastening the feeler device 30 to the tool body 10 , the internal thread of which engages in the thread 14 .
  • the nut 34 is pressed against a washer 33 which in turn is in contact with the second ball bearing 32 .
  • the first ball bearing 31 and the second ball bearing 32 are pushed against a shoulder of the tool body 10 by a rotary movement of the nut 34 and are thus fastened to the tool body 10 .
  • a locking ring is provided as a fastening element.
  • the machining device 1 also has a milling cutter (machining tool) 20 which comprises a plurality of tool cutting edges 21 .
  • the cutting edges 21 are along respectively a guide 22 which runs perpendicular to an axis A of the tool body 10 and is designed, for example, as a T-guide or dovetail guide, is movable relative to the tool body 10 .
  • the tool cutting edges 21 can be designed with different profiles, for example radii R2, R1.5, R1 and/or a chamfer F20°, F45°, both with the same or different base diameters.
  • a spring 25 is accommodated in a recess of each of the tool cutting edges 21 and presses the respective tool cutting edge 21 outwards against the inner cone 15b of the adjustment body 15 in a direction essentially perpendicular to the axis A.
  • the spring 25 presses the respective cutting edge 25 in a prestressed state against the inner cone 15b.
  • the tool cutting edges 21 each have a tool base diameter 21a.
  • the tool base diameter is the diameter of the cutting edge 21 that is set as the reference diameter of the cutting edge 21 for programming the control of the machining device and can be seen in combination with the diameter of the scanning device 30, since this also defines the position of the tool cutting edge 21 in relation to the scanning device 30. If the tool cutting edge 21 is thus displaced in the radial direction, the tool base diameter 21a also changes as a result.
  • the feeler device is selected in a diameter range that corresponds to this.
  • the adjustment body 15 is rotated about the axis A, so that the adjustment body 15 is displaced in the direction of the axis A.
  • the cutting edge 21 is thus moved inwards or outwards relative to the axis A, depending on the direction of rotation of the adjustment body 15.
  • the adjustment body 15 has a vernier scale in order to be able to read the radial adjustment path (e.g. rotation by one line corresponds to 1/100 mm in the tool base diameter). A mark is attached to the tool body 10 to match the vernier lines on the adjustment body 15 when adjusting. If the adjustment body 15 is turned to the left, the tool diameter is reduced. If the adjustment body 15 is rotated to the right, the tool diameter increases.
  • a vernier scale in order to be able to read the radial adjustment path (e.g. rotation by one line corresponds to 1/100 mm in the tool base diameter).
  • a mark is attached to the tool body 10 to match the vernier lines on the adjustment body 15 when adjusting. If the adjustment body 15 is turned to the left, the tool diameter is reduced. If the adjustment body 15 is rotated to the right, the tool diameter increases.
  • the adjustment body 15 has a first key face 16 and the tool body 10 has a second key face 17 for counter-holding.
  • the tool body 10 can be held against with an Allen key.
  • the tool cutting edges 21 are adjusted by manually rotating the adjusting body 15.
  • the adjusting body 15 can be adjusted with a drive in order to adjust the position of the tool cutting edges 21.
  • the drive can be motorized, hydraulic, pneumatic or electric.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling Processes (AREA)
EP23152188.1A 2022-01-19 2023-01-18 Dispositif et procédé d'usinage d'une pièce Pending EP4215326A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022101208.5A DE102022101208A1 (de) 2022-01-19 2022-01-19 Vorrichtung und Verfahren zum Bearbeiten eines Werkstücks

Publications (1)

Publication Number Publication Date
EP4215326A1 true EP4215326A1 (fr) 2023-07-26

Family

ID=85076314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23152188.1A Pending EP4215326A1 (fr) 2022-01-19 2023-01-18 Dispositif et procédé d'usinage d'une pièce

Country Status (2)

Country Link
EP (1) EP4215326A1 (fr)
DE (1) DE102022101208A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0587102B1 (fr) * 1992-09-11 1997-05-14 KARL M. REICH MASCHINENFABRIK GmbH Fraiseuse de bonds avec fraise
DE102010009525A1 (de) 2010-02-26 2011-09-01 Homag Holzbearbeitungssysteme Ag Vorrichtung zum Bearbeiten der Schmalflächen von bevorzugt plattenförmigen Werkstücken
DE102017130891A1 (de) 2017-12-21 2019-06-27 Homag Gmbh Wechselvorrichtung und Verfahren

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360023A (en) 1965-09-27 1967-12-26 John D Rutzebeck Woodworking tool
DE4300030C1 (de) 1993-01-02 1994-01-05 Baur Klaus Peter Fräskopf
DE4317569A1 (de) 1993-05-26 1994-12-01 Klaus Szonn Fräswerkzeug
DE202010010704U1 (de) 2010-07-27 2011-11-14 Ledermann Gmbh & Co. Kg Bearbeitungsvorrichtung
ITBO20120346A1 (it) 2012-06-22 2013-12-23 Biesse Spa Gruppo di fresatura per la lavorazione di pannelli di legno o simili
EP3090823A1 (fr) 2015-05-08 2016-11-09 Ledermann GmbH & Co. KG Outil combiné de fraisage et de raclage
DE102017124967A1 (de) 2017-10-25 2019-04-25 Homag Gmbh Werkzeug zur Bearbeitung von Werkstücken

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0587102B1 (fr) * 1992-09-11 1997-05-14 KARL M. REICH MASCHINENFABRIK GmbH Fraiseuse de bonds avec fraise
DE102010009525A1 (de) 2010-02-26 2011-09-01 Homag Holzbearbeitungssysteme Ag Vorrichtung zum Bearbeiten der Schmalflächen von bevorzugt plattenförmigen Werkstücken
DE102017130891A1 (de) 2017-12-21 2019-06-27 Homag Gmbh Wechselvorrichtung und Verfahren

Also Published As

Publication number Publication date
DE102022101208A1 (de) 2023-07-20

Similar Documents

Publication Publication Date Title
DE102009059897B4 (de) Verfahren zum Rundschleifen von langen, dünnen Rundstangen und Rundschleifmaschine zur Durchführung des Verfahrens
EP0182290A2 (fr) Tête de fraisage
EP2392438B1 (fr) Dispositif de traitement
WO2003022521A1 (fr) Procede et dispositif pour polir des points d'appui centraux de vilebrequins
EP0433925A2 (fr) Dispositif de serrage hydraulique
WO2006111320A1 (fr) Tete de serrage dotee de griffes de serrage flottantes
EP2072201B1 (fr) Palpeur d'angle
DE102004022360B4 (de) Verfahren zur Feinbearbeitung, vorzugsweise zur Feinstschlichtbearbeitung, von Werkstücken vorzugsweise von Kurbelwellen
EP4215326A1 (fr) Dispositif et procédé d'usinage d'une pièce
DE3734734C2 (fr)
DE2559145B2 (de) Entgratwerkzeug
DE10393160B4 (de) Schraubenschleifer
DE19833363B4 (de) Verfahren zur Drehbearbeitung von Rotationsflächen an Werkstücken, vorzugsweise an Kurbelwellen, und scheibenförmiges Werkzeug zur Durchführung des Verfahrens
DE19643192A1 (de) Verfahren zum Bearbeiten von rotationssymmetrischen Werkstückflächen sowie Werkzeug zur Durchführung eines solchen Verfahrens
DE102010031607B3 (de) Gleitflächenbearbeitung einer elastisch verformten Gleitlagerschale
DE102017124967A1 (de) Werkzeug zur Bearbeitung von Werkstücken
DE19546362C2 (de) Werkzeugschleifmaschine
DE10216538A1 (de) Werkzeugkopf
EP1258328B1 (fr) Outil pour usinage de pièces en bois, plastique ou similaires
DE102016014496B4 (de) Drehwerkzeug, insbesondere Drehräumwerkzeug
DE3112316A1 (de) "verfahren zum aussenken von bohrungen in einer platte aus glas- oder kohlenstoffaserverstaerktem material"
DE60313284T2 (de) Werkzeug zur herstellung von kugelschreiberspitzen
EP2628557B1 (fr) Procédé de meulage et/ou de polissage d'une lentille
EP4244006A1 (fr) Utilisation d'une machine d'usinage
DE4232282A1 (de) Hydraulisches Spannelement

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20240117

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20240404