EP3024612A1 - Dispositif d'usinage par enlèvement de copeaux de bords - Google Patents

Dispositif d'usinage par enlèvement de copeaux de bords

Info

Publication number
EP3024612A1
EP3024612A1 EP14754991.9A EP14754991A EP3024612A1 EP 3024612 A1 EP3024612 A1 EP 3024612A1 EP 14754991 A EP14754991 A EP 14754991A EP 3024612 A1 EP3024612 A1 EP 3024612A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
cutting tool
guide element
workpiece guide
axis
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
EP14754991.9A
Other languages
German (de)
English (en)
Inventor
Timo Dauner
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.)
Airbus Defence and Space GmbH
Original Assignee
Airbus Defence and Space 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 Airbus Defence and Space GmbH filed Critical Airbus Defence and Space GmbH
Publication of EP3024612A1 publication Critical patent/EP3024612A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/12—Trimming or finishing edges, e.g. deburring welded corners
    • B23C3/126—Portable devices or machines for chamfering edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/12—Trimming or finishing edges, e.g. deburring welded corners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2220/00—Details of milling processes
    • B23C2220/16—Chamferring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2220/00—Details of milling processes
    • B23C2220/20—Deburring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2230/00—Details of chip evacuation
    • B23C2230/04—Transport of chips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2255/00—Regulation of depth of cut
    • B23C2255/12—Depth stops
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/304144—Means to trim edge

Definitions

  • the present invention relates to tooling technology.
  • the present invention relates to a device for machining of
  • Workpieces with special focus on chamfering, smoothing, contour milling and deburring of workpiece edges may be carried out manually by the operator along the workpiece contour, the machining of the material to be removed using a foreign-driven and rotating cutting tool.
  • the processing of semi-finished workpiece edges according to individual manufacturing steps is used in large semi-finished products such as castings, upper in the small series production of particular metallic components to reduce the risk of injury of an editor and to prepare for further process steps.
  • the existing edge geometry is machined by the manual guidance of the workpiece on the machining tool by the operator. This removes existing burrs, such as deburring castings, creates a defined bevel, for example chamfering already machined aluminum or plastic workpieces, or allows complex geometry to be transferred through the tool, e.g. by contour milling, faceting of visual elements such as glass, mirrors or wood veneers.
  • These editing options are commonly on Tischg. Stand devices performed, usually a projecting beyond the processing table and rotating around its own axis, cutting
  • Tool element with geometrically defined cutting edge or cutting is used.
  • a guide element may thereby engage in an L-shaped manner starting from the machining table via the cutting tool and terminate tangentially to its axis of rotation with a rounded stop surface.
  • a guide of a workpiece on the workpiece geometry to be machined is such that the guide element is present at the workpiece edge to be machined.
  • CONFIRMATION COPY find mostly table or floor units with axially and angularly adjustable to the working plane processing table use to the depth of cut and the
  • the cutting tools used are connected as part of a workpiece machining only at great expense detachably connected to a drive unit.
  • the cross-leadership element When lying in the workpiece edges, such as pockets or grooves, the cross-leadership element but because of its size and lying outside of the tool connection to the machining table usually a limitation of editing options. Especially narrow grooves, flat pockets, edges with small radii and acute angle , thus particularly complex geometries, can be produced thereby usually not or only with difficulty. This may be due in particular to the fact that the L-shaped
  • the editing may be done without direct visual control and is usually exclusively by the
  • Structural components such as e.g.
  • the outer skin of aircraft is manually cut out and reinforced by additionally applied plates or structures.
  • the edges are smoothed.
  • the resulting cut edges, especially in aluminum, are due to the frequent
  • the processing is carried out with abrasives.
  • a defined geometric processing of the edges is usually not possible in both cases.
  • post-processing is also of particular importance because of the high strength and hardness of the fiber elements.
  • the high-strength fibers can be torn during processing from the matrix, for example, these defects represent crack germs. Also chips can be pressed between the individual fiber layers, which may thus form a starting point for delamination and possible failure of the component.
  • the smoothing of these edges presents a special challenge.
  • the published patent application DE10 2007 060 215 A1 describes a device for processing a running edge.
  • a device for machining workpieces comprising
  • Cutting tool a first workpiece guide member and a second workpiece guide member, wherein the first workpiece guide member and the second workpiece guide member are arranged for defined guiding a workpiece relative to the cutting tool, wherein the
  • Cutting tool has a rotation axis and a coaxial opening, wherein the cutting tool for workpiece machining to the
  • Rotation axis rotates and wherein the first workpiece guide element is arranged in the opening of the cutting tool coaxial with the axis of rotation.
  • the device according to the invention provides a cutting tool that is rotated coaxially about a central guide pin and guided by the tip of the workpiece. The axial guidance of the device on
  • a device for the successful one-time processing of visible and invisible edges or margins, in particular with a possibility of machining narrow and / or shallow grooves, pockets and other, particularly complex geometries.
  • Cutting tools and guide elements are easily and quickly exchangeable.
  • the device according to the invention also makes possible an optimized, hand-operable machining possibility of workpieces for use on stationary objects and hard to reach places of use.
  • the first workpiece guide element may be formed as one element or a combination of elements from the group consisting of cylindrical element, rod-shaped element and peg-shaped element, and / or wherein the second workpiece guide element may be formed as a planar element , Especially as a work table with support surface.
  • the first one may be formed as one element or a combination of elements from the group consisting of cylindrical element, rod-shaped element and peg-shaped element, and / or wherein the second workpiece guide element may be formed as a planar element , Especially as a work table with support surface.
  • the first one may be formed as one element or a combination of elements from the group consisting of cylindrical element, rod-shaped element and peg-shaped element, and / or wherein the second workpiece guide element may be formed as a planar element , Especially as a work table with support surface.
  • the first one may be formed as one element or a combination of elements from the group consisting of cylindrical element, rod-shaped element and peg-shaped element, and /
  • the radius of the first workpiece guide element may essentially correspond to the projection of the cutting tool.
  • the first workpiece guide element is a particularly rigid and short
  • the radius of the central guide pin may be chosen equal to the projection with respect to the cutting tool.
  • the pin may preferably so far protrude from the cutting tool up that the tip is formed hemispherical and tangent in the pin over. This results in a supernatant according to the radius.
  • Pintle tip and cutting tool form no excessive gap, which can be added by chips, for example.
  • the flexural rigidity may be further increased by a near-tip bearing between the pilot and a hollow drive shaft of the cutting tool.
  • the drive shaft is supported in a body by other bearings. Via the guide contact workpiece guide pin and the receiving
  • the low height and small diameter of the guide pin allow for the first time, narrow, flat and complex grooves and pockets on workpieces
  • the first workpiece guide element is formed fixed and non-rotating, alternatively rotatably mounted, so that one on the first
  • the cutting tool and / or the first workpiece guide element may be detachable and, in particular, designed to be exchangeable.
  • Main body of the device connected. This is a geared to the different tools interchangeability of the guide pin is given.
  • the first workpiece guide element along its longitudinal axis parallel to the axis of rotation have a change in its diameter, in particular a continuous or step change.
  • Guide pins along the longitudinal axis foot - tip have a continuous or stepwise change in diameter.
  • the cutting tool may rotate about the guide pin.
  • the foot of the guide pin may have a releasable means for connection to the
  • a key surface for releasing and securing the guide pin by a tool.
  • the tip which in contact with the guide Workpiece can be rounded for better handling, cylindrical or executed with a different contour.
  • the all-round accessibility to the cutting tool achieved by this embodiment allows a simple and one-time "blind" machining of the workpiece edges without immediate and direct visual control during machining.
  • the cutting tool may be formed as a hollow cone or have a defined conical surface contour, wherein in the interior of the hollow body, the first workpiece guide element substantially without contact with the
  • Cutting tool is arranged.
  • the cutting tool may thus be executable as a hollow cone or with a free cone shell contour.
  • Within the hollow body extends axially but substantially without contact the
  • the cutting tool may have at least one cutting edge on the conical surface.
  • the geometries of the conical surface contour and the one or more cutting edges will be apparent to those skilled in the art from the application.
  • the device may further comprise a drive element for the cutting tool, wherein the cutting tool may be releasably connected to the drive element, in particular wherein the drive element may be formed as a hollow drive shaft. So may be present on the cone bottom side means for releasable connection to a drive shaft and a key surface for applying the tightening / loosening torque. Through this connection, the tool may be driven and at the same time the occurring cutting forces are absorbed.
  • the cutting tool of the device can be advantageously changed quickly with simultaneous secure transmission of the guiding and cutting forces.
  • a hollow drive shaft may be used. This may be advantageous supported by two lying on the outer surface bearing points in the body, another bearing may be given inside the hollow shaft on the guide pin.
  • the upper end of the drive shaft may be a corresponding means for receiving the
  • a locking mechanism may be provided, e.g. Locked by the
  • Drive shaft may have a means for coupling to a drive motor.
  • the guide pin and the drive shaft may be received and enclosed by a base body. This has corresponding fixed bearings for receiving the axial and radial forces occurring during machining.
  • a receptacle for the guide pin is present. On the body is directly, or via any fasteners, a
  • machining table is connected to the base body. At the top of the body, a possibility is provided to close this against the entry of machining chips.
  • the basic body is designed to absorb all occurring forces and provides the interface to the environment.
  • the second workpiece guide element may be formed as a work table, wherein the work table may be designed to be parallel displaceable to the rotation axis and / or wherein the surface of the work table perpendicular to
  • Rotation axis may be formed and / or wherein the work table in such a way may be that its surface normal compared to the
  • Rotation axis is pivotable, so that surface normal
  • Rotation axis can be arranged non-parallel.
  • the work table is preferably displaceable and lockable parallel to the axis of the cutting tool.
  • one or more guide elements on the body and a displacement mechanism are present.
  • the surface In the initial position, the surface may be oriented perpendicular to the axis of the cutting tool. Through a continuous cutout, the cutting tool breaks through the surface of the machining table.
  • This section may be designed such that accumulating machining chips can not penetrate or only to a limited extent through the gap to the cutting tool or to the bearings.
  • the axial displaceability of the machining table may allow it to change the depth of cut of the cutting tool.
  • the machining table may have a possibility of tilting the surface normal with respect to the axis of the cutting tool.
  • the working table is at right angles to the
  • the first workpiece guide element may have a replaceable tip or
  • both the tips and the guide pins may have a releasable means for connecting the two components.
  • the tips may have the following features: a tip with a larger diameter than the one Guide pin itself to adjust the cutting depth of the cutting tool over the distance to the workpiece or with a ball bearing
  • the cutting tool may have a defined profile geometry in order to transfer this to the workpiece to be machined.
  • the device may have a Ab211schwkeit for accumulating chips.
  • openings of the work table make a connection to the cavity between the base body and the inside of the work table.
  • a chipboard may rotate, which is designed such that the chips penetrating between the cutting tool and work table are radially accelerated against an inner circumferential surface of the work table / body.
  • the chips hit the openings and are thrown out of the device.
  • the device may be designed to be portable or stationary.
  • Device is as hand-held device as well as functional limitations of the machining possibilities as a table or stand unit executable.
  • the compact form of performance is to be replaced by a solid construction in order to ensure the necessary stability and strength when machining large and heavy workpieces. For use with very large and heavy workpieces like one
  • Embodiment with displaceable and angularly adjustable body as an alternative to a work table with a fixed work table, be provided.
  • the editing table may provide the interface function to the environment and the base body the adjustment of the machining angle.
  • Fig. 1 shows an exemplary embodiment of an upper portion of a
  • Fig. 2 is a schematic sectional view of an exemplary
  • Embodiment of the device according to the present invention Embodiment of the device according to the present invention.
  • the device according to the invention from FIG. 1 and FIG. 2 has a first one
  • Cutting tool 2 passes in a coaxial bore 22 and projects beyond. Towards its foot, the first workpiece guide element 1 grows in the
  • the first work guide member 1 has a member for releasably connecting, e.g. a thread 14 and possibly a centering to connect the first workpiece guide element 1 with a base body 4 and possibly
  • Cutting tool 2 is designed conical and has on the
  • Cone surface one or more geometrically determined cutting on.
  • a bore 22 is present, which as
  • Play fit 11 is formed to the first workpiece guide element 1.
  • Foot of the cutting tool 2 has a member for releasably connecting, for example, a thread 9 and a key surface 10.
  • the thread is used to connect the cutting tool 2 to a drive shaft 3.
  • the drive shaft 3 is rotationally symmetrical, hollow and rotatable about its longitudinal axis. At its upper end is the already mentioned
  • the drive shaft 3 has at the foot of a transmission.
  • the drive may be formed as a planetary gear, e.g. three running as a planetary drive means 8 transmit the torque from an external motor to the drive shaft 3 and thus to the cutting tool 2.
  • the main body 4 may for receiving the drive, the following
  • body 4 is cylindrical with an upwardly open excavation. The bottom of this excavation is broken by connecting thread 14 of the first workpiece guide element 1 and three bearings for the drive means 8. In the excavation are two or more defined bearings for receiving the upper 16 and the lower 15 ball bearing.
  • the base 4 has a bearing, e.g. a sliding bearing 17 in the upper region of its outer circumferential surface, a movement thread 18 for axial adjustment of the work table 5 and a way to lock them.
  • Workpiece guide element 5 a work table, for use. This is about the described sliding bearing 17 and the movement thread 18 axially slidably connected to the base body 4. About a rotation about the rotation axis 21, this can be moved up and down along the base body 4.
  • the upper side of the, for example, cylindrical, work table 5 is aligned normal to the axis of rotation 21 of the cutting tool 2 and has a concentric with the axis of rotation 21 cylindrical aperture 23 for the
  • Handling of the device may be provided.

Abstract

La présente invention concerne un dispositif (20) servant à l'usinage par enlèvement de copeaux de pièces (6), possédant un outil d'enlèvement des copeaux (2), un premier élément de guidage de pièce (1) et un deuxième élément de guidage de pièce (5). Le premier élément de guidage de pièce (1) et le deuxième élément de guidage de pièce (5) sont conçus pour un guidage défini d'une pièce (6) par rapport à l'outil d'enlèvement des copeaux (2) et l'outil d'enlèvement des copeaux (2) possède un axe de rotation (21) et une ouverture coaxiale (22). L'outil d'enlèvement des copeaux (2) tourne autour de l'axe de rotation (21) en vue de l'usinage de la pièce et le premier élément de guidage de pièce (1) est disposé dans l'ouverture (22) de l'outil d'enlèvement des copeaux (2) de manière coaxiale par rapport à l'axe de rotation (21).
EP14754991.9A 2013-07-20 2014-07-17 Dispositif d'usinage par enlèvement de copeaux de bords Pending EP3024612A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013012167.1A DE102013012167B4 (de) 2013-07-20 2013-07-20 Vorrichtung zur spanenden Bearbeitung von Kanten
PCT/DE2014/000362 WO2015010675A1 (fr) 2013-07-20 2014-07-17 Dispositif d'usinage par enlèvement de copeaux de bords

Publications (1)

Publication Number Publication Date
EP3024612A1 true EP3024612A1 (fr) 2016-06-01

Family

ID=51392010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14754991.9A Pending EP3024612A1 (fr) 2013-07-20 2014-07-17 Dispositif d'usinage par enlèvement de copeaux de bords

Country Status (4)

Country Link
US (1) US10016821B2 (fr)
EP (1) EP3024612A1 (fr)
DE (1) DE102013012167B4 (fr)
WO (1) WO2015010675A1 (fr)

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US10590615B2 (en) * 2016-06-28 2020-03-17 Vigor Industrial Llc Orthotropic deck
US10730201B2 (en) * 2016-10-03 2020-08-04 Sikorsky Aircraft Corporation Blade chamfer tools
DE202017101024U1 (de) * 2017-02-23 2017-03-07 Peter Baumgärtner Elektrohandgerät
DE102017112234A1 (de) * 2017-06-02 2018-12-06 Metabowerke Gmbh Kantenfräsmaschine
CN107159950B (zh) * 2017-07-12 2023-09-12 容县润达家具有限公司 一种成型板修边的工装及方法

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Also Published As

Publication number Publication date
DE102013012167B4 (de) 2022-02-03
US20160167141A1 (en) 2016-06-16
DE102013012167A1 (de) 2015-01-22
WO2015010675A1 (fr) 2015-01-29
US10016821B2 (en) 2018-07-10

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