EP2929981A1 - Dispositif de retenue pour réception et support d'au moins un composant et procédé de trovalisation - Google Patents

Dispositif de retenue pour réception et support d'au moins un composant et procédé de trovalisation Download PDF

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Publication number
EP2929981A1
EP2929981A1 EP15160530.0A EP15160530A EP2929981A1 EP 2929981 A1 EP2929981 A1 EP 2929981A1 EP 15160530 A EP15160530 A EP 15160530A EP 2929981 A1 EP2929981 A1 EP 2929981A1
Authority
EP
European Patent Office
Prior art keywords
component
holding device
axis
receptacle
components
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.)
Granted
Application number
EP15160530.0A
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German (de)
English (en)
Other versions
EP2929981B1 (fr
Inventor
Dagobert Göpfert
Bernd Stimper
Michael Velten
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.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines AG
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Filing date
Publication date
Application filed by MTU Aero Engines AG filed Critical MTU Aero Engines AG
Publication of EP2929981A1 publication Critical patent/EP2929981A1/fr
Application granted granted Critical
Publication of EP2929981B1 publication Critical patent/EP2929981B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/003—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor whereby the workpieces are mounted on a holder and are immersed in the abrasive material

Definitions

  • the invention relates to a holding device for receiving and holding at least one component within a trough filled with abrasive bodies of a vibratory finishing device, by means of which respective surfaces of the at least one component are abradable under relative movement between the at least one component and the grinding wheels. Furthermore, the invention relates to a vibratory finishing method using a holding device for the components to be ground.
  • the so-called slide grinding process which is a subgroup of the sizing processes, is known to be particularly suitable.
  • a container or trough of a vibratory finishing device is filled with loose grinding bodies and the components to be processed or abraded are placed in the trough filled with grinding bodies.
  • a so-called oscillating trough can be used, which can be set in vibration by a vibration motor of the vibratory finishing device.
  • the abrasive body contained in the swing tray, or containers are excited so that they move relative to the components to be abraded.
  • the roughness of the component surfaces are reduced and, accordingly, the components are ground.
  • From the DE 2 344 639 A1 is a device for holding workpieces within a vibrating trough filled with an abrasive pad, according to the vibratory finishing method working grinding or polishing machine known.
  • the known device has loose, insertable into the swing trough and permeable to the abrasive body receiving cages for at least one workpiece.
  • These receiving cages also each have two designed as a spoked wheel end parts and are therefore complex and manufactured with relatively high material usage.
  • the holding device for receiving and holding at least one component within a trough filled with abrasive bodies or working space of a vibratory finishing, by means of which respective surfaces of the at least one component under relative movement between the at least one component and the grinding bodies are abradable, comprises at least one axis to the releasable Receiving and holding the at least one component, wherein the axis is formed such that it can be guided through at least one opening in the component and / or through at least one opening of a component receiving at least one component.
  • This means that the components to be machined can be detachably fastened directly or indirectly to the axle via a component mount.
  • Such an axis is particularly easy to manufacture and low material usage.
  • the surfaces of the component or components by means of the holding device according to the invention are particularly accessible to the grinding body.
  • the holder of the at least one component or the at least one component holder ensures a particularly uniform velocity distribution of the relative velocity between the grinding wheels and the surfaces to be abraded of the component on the axis, wherein the grinding process can also take place over an extended area of the surfaces to be abraded.
  • the at least one component or the at least one component holder By receiving or holding the at least one component or the at least one component holder by means of the at least one axis, in particular, there are no local differences in the relative speed between the grinding bodies and the component surfaces, so that the grinding quality on the entire component surface coming into contact with the grinding bodies is evenly high.
  • the use of a component holder also allows the processing of smaller components.
  • several components can be processed simultaneously in a vibratory finishing.
  • the component receptacle is designed such that a plurality of components can be arranged rotationally symmetrically on the component receptacle.
  • the component receptacle may be disk-shaped or annular. This advantageously results in a uniform wear on the component surfaces of the components mounted on the component holder.
  • this has at least one attachable to the axle spacer element, by means of which the at least one component and / or the at least one component receptacle to at least one further mounted on the axle component and / or a further component receiving in a predetermined axial Distance can be arranged.
  • the at least one spacer element By arranging the at least one spacer element on the axis mutual contact of the respective components can be reliably excluded.
  • the spacer element can also be dimensioned differently with respect to its axial extension, so that the axial distance between the components can be exactly predetermined.
  • the relative speed between the grinding bodies and the respective mutually facing surfaces of adjacent components, which are spaced apart from each other by the spacer can be adjusted directly by the size of the distance, ie the gap between the components is specified by means of the spacer. Therefore, on the one hand, it is possible to use a spacer which is short in axial engagement, and accordingly a relatively narrow gap between the opposing component surfaces to provide, thereby increasing the number of storable by means of the axis components and / or component recordings and so the system utilization can be increased.
  • a particularly large distance between the components and / or component receptacles can be created by means of a correspondingly dimensioned spacer, whereby a total of fewer components can be accommodated on the axis, however, a particularly homogeneous and high grinding quality is also achieved on facing component surfaces .
  • sleeves with a particularly thin wall thickness can be provided as spacer elements, which have a particularly small contact surface with the respective components to be spaced apart.
  • the component holder already has an integrated spacer element, which may be formed in particular in the area around the opening for insertion of the axle.
  • this comprises at least one adapter, by means of which at least one size difference and / or a difference in the geometric configuration between the axis and the opening of the component and / or the opening of the component holder, through which the axis is guided, is compensable.
  • the adapter may, for example, have a cone on which the component or the component receptacle are at least partially pushed and can be held without play on the axis accordingly.
  • the above-described spacer element and the adapter can be designed as separate components or in one piece.
  • this has at least two radial spacers, wherein the radial spacers are arranged on the axis such that the at least one component and / or the component receptacle is mounted between the radial spacers.
  • the radial spacers in this case have an extent and / or a diameter (D R ), which is greater than the maximum extent and / or the maximum diameter (D B ) of the components mounted directly on the axle or the at least one disposed on the component receiving component.
  • D R the maximum extent and / or the maximum diameter
  • the radial spacers come to several advantageous functions.
  • the latter has at least two clamping or fixing elements, by means of which the components and / or the at least one component receptacle and / or the at least one spacer element and / or the at least one adapter and / or the at least two radial spacers can be fixed on the axle.
  • the clamping or fixing elements which may be designed, for example, as nuts which can be screwed onto the axle, the components and / or component retainers can be secured in a particularly effective manner against an axial displacement or against unwanted release from the axle.
  • clamping or fixing elements can also be designed, for example, as securing rings or other clamping means suitable for holding the components and / or component receptacles. If the clamping or fixing elements fixed on opposite sides of the axis, a particularly large area of the axis can be used to hold the components and / or component receptacles.
  • the radial spacers, the spacers and / or the adapters can be fixed to the axle by means of the clamping or fixing elements.
  • the axis for receiving and holding the components and / or component receptacles at least partially has an external thread. On this external thread then components and / or component holders can be screwed with a corresponding internal thread having openings and thus secured. The same applies to the radial spacers, the spacers and / or the adapter.
  • the axis has a constant or changing axle diameter. This makes it possible to easily adapt the diameter of the axle to one or more identical or different diameters of the openings of the components and / or component holders, through which the axle is guided, and without additional intermediate elements.
  • the holding device according to the invention is particularly suitable for receiving and holding at least one component of an aircraft engine.
  • Components of an aircraft engine are usually particularly heavily stressed, which is why an exact production or a particularly uniform and high grinding quality is of particular importance.
  • the holding device is suitable for receiving such components, since a particularly high grinding and surface quality can be ensured at the component surfaces coming into contact with the grinding bodies.
  • the components mentioned may be a so-called Blisk (Blade Integrated Disc), which is constructed integrally from a plurality of blades and a disk (disc) or a so-called Bling (Bladed Ring), in which the blades are integral with a bearing ring are made, act.
  • the arrangement of these blisks or blings on the holding device and the grinding of the surfaces by means of the vibratory finishing device is particularly advantageous, since the surfaces of the blisks or blings can be ground particularly homogeneous despite their complex structure.
  • Other components with at least one rotationally symmetric region can be processed particularly advantageously with the holding device according to the invention within a vibratory grinding.
  • the opening for the passage of the axis of the holding device is advantageously arranged in the region of the axis of rotation of the rotationally symmetrical region.
  • the hub areas formed around their axis of rotation can be used. This contributes in particular to uniform processing, i.
  • the component holder can advantageously be disc-shaped or annular.
  • the invention further comprises a vibratory finishing method, which comprises at least the following steps using a holding device described above: applying and detachably attaching at least one component and / or at least one component receiving at least one component on at least one axis of the holding device, wherein the axis is formed is that it can be guided through at least one opening in the component and / or the component holder; Inserting the holding device in a with Grinding bodies filled or to be filled trough or working space of a vibratory grinding, which is designed for grinding respective surfaces of the at least one component under relative movement between the at least one component and the grinding wheels; Moving the trough and the grinding wheels therein to move the grinding operation; and stopping the machining operation and removing the holding device.
  • a vibratory finishing method comprises at least the following steps using a holding device described above: applying and detachably attaching at least one component and / or at least one component receiving at least one component on at least one axis of the holding device, wherein the axis is formed is that it can be guided through
  • the vibratory grinding method By means of the vibratory grinding method according to the invention, a particularly simple plant assembly, a low-manufac- ture production and minimal throughput times result using the holding device, whereby a universal applicability of the holding device or the vibratory finishing process for a large number of component shapes is given.
  • several components can be edited at the same time.
  • the movement or flow direction of the grinding bodies in the trough can be reversed. As a result, the holding device "floats" with the at least one component and / or component holder on the grinding bodies and can thus be easily removed from the trough.
  • FIG. 1 shows a schematic sectional view of a vibratory finishing device 10 with a filled with grinding wheels 16 trough 12.
  • the trough 12 is vibrated by means of a vibrator device, not shown, the vibratory finishing device 10 in vibration.
  • the abrasive body 16 known elements may be used, which consist in particular of steel, corundum or other suitable materials. Typical dimensions of the grinding wheels 16 are in the millimeter range.
  • the abrasive body 16 may be formed spherical, pyramidal or tetrahedral. However, other shapes and sizes are conceivable. Due to the vibrations of the trough 12, the grinding wheels 16 are also set in motion, in particular a flow movement.
  • a holding device 18 is inserted into the trough 12 or into the bulk material of the grinding body 16.
  • the holding device 18 has an axis 20, on which in the exemplary embodiment, three components 22, 26, 34 are mounted.
  • the components 22, 26, 34 are pushed over a respective opening 24 on the axis 20.
  • two spacer elements 30 are arranged, which space the components 22, 26, 34 from each other axially.
  • the axial distance a between the components 22 and 26 is shown.
  • the components 22, 26, 34 shown in the exemplary embodiment are so-called blisks which have a rotationally symmetrical region 28.
  • the openings 24 of the components 22, 26, 36 are formed in the rotationally symmetrical region 28, wherein the central axes of the openings 24 are arranged coaxially to a longitudinal axis of the axis 20.
  • the holding device 18 further comprises two radial spacers 36, which are arranged at the respective ends of the axis 20. Between the radial spacers 36, the components 22, 26, 34 and the corresponding spacer elements 30 are mounted. It can be seen that the two radial spacers 36 have a diameter D R , which is greater than a maximum diameter D B of the components 22, 26, 34.
  • the arrangement of the two radial spacers 36 and the intermediate components 22, 26, 34 with the spacer elements 30 is fixed by two clamping or fixing elements 32 on the axis 20.
  • the clamping elements 32 can be, for example, nuts which can be screwed onto the corresponding ends of the axle 20. If appropriate, the clamping elements 32 can also be integrated in the radial spacers 36.
  • the diameter D R of the radial spacers 36 is greater than the maximum diameter D B of the components located between the radial spacers 36 is reliably prevented that the components to be machined 22, 26, 34 abut the inner sides 14 of the trough 12 and possibly damaged , A mutual contacting of the components 22, 26, 34 is in turn prevented by the spacer elements 30 arranged between the components 22, 26, 34.
  • the radial spacers 36 are shown and formed disc-shaped. Of course there is also the possibility that these are, for example, annular or also have a different geometric shape. It is crucial that the extent and / or the diameter of the radial spacers 36 at each point is always greater than the maximum diameter and / or the maximum extent of the fixed in the holding device 18 component 22, 26, 34th
  • the axle 20 has a constant axle diameter in the illustrated embodiment. But it is also possible that this axle diameter varies and is adapted to different diameters of the openings 24 of the components to be machined. Such size differences in the diameters of the openings 24 could also be compensated by corresponding adapters (not shown).
  • FIG. 2 shows a schematic representation of a holding device 18 'according to another embodiment.
  • the holding device 18 'in this case comprises an axis 20 for releasably receiving and holding a component receptacle 38.
  • the axis 20 in this case has an external thread 46, onto which the component receptacle 38 with a corresponding internal thread (not shown) of an opening formed in the component receptacle 38 opening 40 screwed and attachable.
  • the opening 40 is formed centered within the component receptacle 38.
  • at least one clamping or fixing element 32 which can also be screwed onto the axis 20, is additionally provided, which is designed as a screw nut in the example shown.
  • the component holder 38 may be made of plastic, ceramic, wood, metal and / or a metal alloy.
  • the component receptacle 38 is disc-shaped.
  • fastening devices 44 for releasably securing the components 42 are arranged on the radially outer edges of the component holder 38 .
  • the fastening devices 44 can be designed as screw, clamp or plug connections. Other types of attachment are conceivable.
  • the components 42 in the illustrated embodiment are blades of a turbine of an aircraft engine.
  • the fastening devices 44 are arranged at an equal angular distance from each other, so that overall results in an approximately rotationally symmetrical structure of the component holder 38 with the components 42 and an approximately rotationally symmetrical arrangement of the components 42.
  • three fasteners 44 shown may be any number of the same or different Fastening devices may be formed on the component receptacle 38, as far as the size of the respective component receptacle 38 allows.
  • a particularly efficient vibratory finishing process is provided, in which the illustrated components 22, 26, 34, 42 are mounted on the axis 20 of the holding device 18 directly or indirectly via the component holder 38 and together with the holding device 18 in the filled with grinding wheels 16 trough 12 of the vibratory finishing 10 are inserted.
  • the grinding bodies 16 and the components 22, 26, 34, 42 or their component surfaces are ground and / or polished and / or deburred.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP15160530.0A 2014-03-31 2015-03-24 Dispositif de retenue pour réception et support d'au moins un composant et procédé de trovalisation Not-in-force EP2929981B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014205940.2A DE102014205940A1 (de) 2014-03-31 2014-03-31 Haltevorrichtung zur Aufnahme und Halterung von mindestens einem Bauteil und Gleitschleifverfahren

Publications (2)

Publication Number Publication Date
EP2929981A1 true EP2929981A1 (fr) 2015-10-14
EP2929981B1 EP2929981B1 (fr) 2018-05-09

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ID=52780857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15160530.0A Not-in-force EP2929981B1 (fr) 2014-03-31 2015-03-24 Dispositif de retenue pour réception et support d'au moins un composant et procédé de trovalisation

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Country Link
EP (1) EP2929981B1 (fr)
DE (1) DE102014205940A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3501733A1 (fr) * 2017-12-22 2019-06-26 Haug Intelligente Poliersysteme GmbH Dispositif de finition vibratoire d'une roue de véhicule
CN115157014A (zh) * 2022-06-29 2022-10-11 山东金帝精密机械科技股份有限公司 一种轴承保持架的网筒研磨方法及装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114505781B (zh) * 2022-04-20 2022-06-21 徐州宇飞电力科技有限公司 一种电热管制造滚光处理设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2344639A1 (de) 1973-09-05 1975-03-13 Dillenberg Bergische Metall Verfahren und vorrichtung zum entgraten, schleifen und/oder polieren kleiner werkstuecke aus metallguss
SU1454662A1 (ru) * 1986-10-17 1989-01-30 Научно-Производственное Объединение По Оборудованию Для Химических Волокон Способ вибрационной обработки деталей
EP0734812A1 (fr) * 1995-03-31 1996-10-02 ROTO FRANK Aktiengesellschaft Dispositif de polissage et procédé de polissage
DE10204267C1 (de) * 2002-02-02 2003-04-24 Otec Praezisionsfinish Gmbh Werkstückhalter für Schleppfinishmaschinen
US20040002293A1 (en) * 2002-06-27 2004-01-01 Bausch & Lomb Incorporated Apparatus and method for target polishing intraocular lenses
US20050255797A1 (en) * 2004-05-12 2005-11-17 Shuji Kawasaki Barrel polishing device
DE102005047303A1 (de) * 2005-09-30 2007-04-12 Walther Trowal Gmbh & Co. Kg Vorrichtung und Verfahren zum Schleifen oder Polieren von fein strukturierten Werkstücken
DE102011103606A1 (de) * 2011-06-08 2012-12-13 Rolls-Royce Deutschland Ltd & Co Kg Bearbeitungsvorrichtung für eine Oberflächenbearbeitung eines Werkstücks durch Tauchschleifen

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
US1512350A (en) * 1922-07-24 1924-10-21 William M Mccorkle Disk scouring and polishing apparatus
DE102009021824A1 (de) * 2009-05-18 2010-11-25 Rolls-Royce Deutschland Ltd & Co Kg Verfahren zum Kantenentgraten und -verrunden
EP2364812A1 (fr) * 2010-03-08 2011-09-14 REM Technologies, Inc. Dispositif magnétique
SG195417A1 (en) * 2012-06-01 2013-12-30 Pratt & Whitney Services Pte Ltd Polishing assembly and method for polishing

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2344639A1 (de) 1973-09-05 1975-03-13 Dillenberg Bergische Metall Verfahren und vorrichtung zum entgraten, schleifen und/oder polieren kleiner werkstuecke aus metallguss
SU1454662A1 (ru) * 1986-10-17 1989-01-30 Научно-Производственное Объединение По Оборудованию Для Химических Волокон Способ вибрационной обработки деталей
EP0734812A1 (fr) * 1995-03-31 1996-10-02 ROTO FRANK Aktiengesellschaft Dispositif de polissage et procédé de polissage
DE10204267C1 (de) * 2002-02-02 2003-04-24 Otec Praezisionsfinish Gmbh Werkstückhalter für Schleppfinishmaschinen
US20040002293A1 (en) * 2002-06-27 2004-01-01 Bausch & Lomb Incorporated Apparatus and method for target polishing intraocular lenses
US20050255797A1 (en) * 2004-05-12 2005-11-17 Shuji Kawasaki Barrel polishing device
DE102005047303A1 (de) * 2005-09-30 2007-04-12 Walther Trowal Gmbh & Co. Kg Vorrichtung und Verfahren zum Schleifen oder Polieren von fein strukturierten Werkstücken
DE102011103606A1 (de) * 2011-06-08 2012-12-13 Rolls-Royce Deutschland Ltd & Co Kg Bearbeitungsvorrichtung für eine Oberflächenbearbeitung eines Werkstücks durch Tauchschleifen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3501733A1 (fr) * 2017-12-22 2019-06-26 Haug Intelligente Poliersysteme GmbH Dispositif de finition vibratoire d'une roue de véhicule
CN115157014A (zh) * 2022-06-29 2022-10-11 山东金帝精密机械科技股份有限公司 一种轴承保持架的网筒研磨方法及装置

Also Published As

Publication number Publication date
EP2929981B1 (fr) 2018-05-09
DE102014205940A1 (de) 2015-10-01

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