EP2502703A2 - Dispositif de polissage avec passage tournant - Google Patents

Dispositif de polissage avec passage tournant Download PDF

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Publication number
EP2502703A2
EP2502703A2 EP20120160912 EP12160912A EP2502703A2 EP 2502703 A2 EP2502703 A2 EP 2502703A2 EP 20120160912 EP20120160912 EP 20120160912 EP 12160912 A EP12160912 A EP 12160912A EP 2502703 A2 EP2502703 A2 EP 2502703A2
Authority
EP
European Patent Office
Prior art keywords
polishing
base part
connection
spindle
spindle shaft
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
EP20120160912
Other languages
German (de)
English (en)
Other versions
EP2502703A3 (fr
EP2502703B1 (fr
Inventor
Ulf BÖRNER
Klaus Krämer
Gunter Schneider
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.)
Schneider GmbH and Co KG
Original Assignee
Schneider GmbH and Co KG
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 Schneider GmbH and Co KG filed Critical Schneider GmbH and Co KG
Publication of EP2502703A2 publication Critical patent/EP2502703A2/fr
Publication of EP2502703A3 publication Critical patent/EP2502703A3/fr
Application granted granted Critical
Publication of EP2502703B1 publication Critical patent/EP2502703B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • 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
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/02—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor by means of tools with abrading surfaces corresponding in shape with the lenses to be made
    • 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
    • B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
    • B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents

Definitions

  • the invention relates to a polishing apparatus for zonal polishing of optical lenses with a tiltable base part for central or immediate recording of a polishing plate, wherein the base part for driving with a rotatably mounted in a spindle housing spindle axis of a polishing spindle is rotatably connected and a rotary feedthrough is provided , By means of which the supply of polishing agent is ensured in a polishing agent channel of the base part.
  • the invention relates to a polishing apparatus for polishing optical lenses with a tiltable, solid base part for central or immediate recording or clip recording a polishing plate, wherein the base part for receiving on a ball head of a polishing spindle has a cap and the base part for the purpose of rotary drive is coupled via a connecting part with a pivot axis D having a polishing spindle or at least coupled.
  • non-rigid materials such as rubber are eliminated from the base.
  • the invention also relates to a method for zonal polishing of aspherical, non-rotationally symmetrical lenses using a polishing plate tilted by a polishing spindle.
  • the tool or the polishing head is guided over the surface, wherein on the areas of the surface to be machined of the lens, which are not covered by the tool, polishing agent is applied, which then between the polishing tool and the surface to be processed of the lens is incorporated, whereby the polishing performance is improved.
  • polishing agent is applied, which then between the polishing tool and the surface to be processed of the lens is incorporated, whereby the polishing performance is improved.
  • the polishing head In order to adapt the polishing head to the shape of the surface to be machined this is tiltably mounted on a ball joint.
  • the polishing head has an elastic support layer for the polishing film, so that a local deformation of the polishing head to adapt to the shape of the lens is possible.
  • Such a polishing tool is from the DE 10 2004 062 319 B3 known. It describes a polishing apparatus for optical lenses with a rotation axis X having a receptacle for placement on a polishing machine and arranged on the receptacle cuff for rotatably driving a arranged on the sleeve tool holder or polishing head, wherein the tool holder via a coaxially mounted in the receptacle and in the direction of the axis of rotation X displaceable guide piston is guided tiltably.
  • a polishing apparatus for polishing optical lenses is made of DE 10 2008 061 267 A1 known.
  • the polishing apparatus has a tiltable base part for directly or indirectly receiving a polishing plate, wherein the base part is connected to a polishing spindle for rotary drive and a rotary feedthrough is provided for the supply of polishing agent, which is arranged with respect to the base part at least partially opposite to the polishing spindle.
  • the rotary union is supplied externally by means of a hose connection via a stationary polishing agent supply supplied, wherein the hoses are attached to the non-rotating part of the rotary feedthrough, but which also tilts during the process.
  • a polishing device for polishing optical lenses with a tiltable base part for central or immediate recording of a polishing plate wherein the base part for receiving on a ball head of a polishing spindle has a dome and coupled the base part for the purpose of rotary drive via a connecting part with a spindle shaft of a polishing spindle is, wherein the dome formed as a separate bearing part and arranged in the base part.
  • the invention has for its object to provide a polishing device for the zonal machining of non-rotationally symmetric surfaces, which has improved polishing properties in terms of mobility and longevity.
  • the coupling of the hose connection to the rotary feedthrough from the outside that is to say a stationary hose connection to the tilting and rotating base part during the polishing process on the ball head, is prevented.
  • only one hose connection connected to the likewise rotating part of the rotary feedthrough is necessary.
  • the hose connection rotates with the spindle and the rotating part of the rotary feedthrough. Since only the flexible hose connection is coupled to the base part, the base part is only slightly influenced in its tilting movement.
  • the mobility of the Base part on the ball head for the purpose of adaptation to the predetermined by the rotating workpiece position is significantly improved.
  • polishing agent is fed from the outside via a rotary feedthrough stationarily arranged on the spindle shaft. Via a flexible fluid connection, the polishing agent is guided from the rotary feedthrough to the base part and to the polishing plate arranged thereon.
  • the use of a separate bearing part or a separate calotte made of a different material allows an even better mobility on the ball head and thus the overall improved by the inventive rotary feedthrough mobility of the base part. This especially against the background of the use of different materials.
  • the material for the bearing part can thus be selected solely according to its sliding properties, regardless of the desired material properties for the base part.
  • the latter is in direct contact with the very abrasive polishing suspension and is also claimed cyclically in the field of recording geometry by the up and Abklippsen the polishing plate. An increased wear resistance is thus ensured with the free choice of material.
  • the applicable for the bearing part slidable material can be sufficiently large elasticity and a simple assembly when placed on or removal from the ball to. With increased elasticity, an improved widening of the dome during insertion or removal of the ball head is ensured.
  • the base part is formed with the bearing part or the cap as a composite part, wherein the bearing part is integrated into the base part or at least integratable.
  • a composite part can be favorable material pairings for the base part on the one hand and the dome or the bearing part on the other hand form.
  • the material of the bearing part can be selected according to the optimal sliding movements on the ball head, while the base part on the one hand and the aggressive polish on the other hand can be made wear-resistant on the other hand with respect to the continuous polishing plate change.
  • a further connecting element between the bearing part and the base part can be provided for the purpose of training as a composite part.
  • the bearing part and the base part could be formed of the same material.
  • the base part and for the bearing part it can be advantageous for this purpose if at least one of the materials metal, plastic or ceramic is used for the base part and for the bearing part, so that material combinations with the desired properties are possible. Assuming the use of materials for the base and bearing assembly with different mechanical properties, different material combinations are provided as a composite material. Plastic such as Teflon offers very good sliding properties, while ceramic and metal are very wear-resistant. The latter ensures a longevity of the base part, which is subject to numerous cycles of Aufklippsbaren polishing head. The dimensional stability of the base part is ensured when using ceramic or metal.
  • the fluid connection has a first connection to the base part and a second connection to the rotary feedthrough, wherein the first connection is offset relative to the second connection with respect to a circumferential direction of the spindle shaft.
  • the fluid connection can be formed sufficiently long so that, taking into account the available flexibility of the fluid connection as little influence as possible on the tilting movement of the base part and the polishing head.
  • first connection is arranged with respect to the circumferential direction of the spindle shaft opposite to the second connection.
  • both ports are at maximum distance from each other, whereby a maximum length of the fluid connection is ensured. Distances between the terminals in the axial direction are neglected in this consideration.
  • An in Fig. 1 shown polishing device 1 consists of a polishing spindle 4 with a about an axis of rotation D in the circumferential direction U rotatable spindle shaft 4.1, at the front end of a base part 2 is provided with a releasablyconcentrklippsten polishing plate 3.
  • the base part 2 is connected via a trained as a bellows 4.4 connecting part in rotary connection with the spindle shaft 4.1.
  • the polishing spindle 4 has a coaxially to the axis of rotation D mounted piston 4.5, at the end-face end of a ball head 4.2 is provided as part of a ball joint for tilting receiving the base part 2.
  • the piston 4.5 is axially movable in the direction of a translation axis T and is guided for this purpose via a cylinder 4.6.
  • the spindle shaft 4.1 carries a rotary feedthrough 5 for polishing agent, which is in flow connection via a second connection 5.6 and a fluid connection 5.1 with a first connection 2.3 of the base part 2 and a subsequent polishing agent channel 2.1.
  • the two connections 2.3, 5.6 lie on opposite sides of the base part or the spindle, so that the flexibility of the fluid connection 5.1 designed as a tube is utilized.
  • the rotary feedthrough 5 is essentially formed from a base body 5.2 with an annular channel 5.3, which rotates with the spindle shaft 4.1.
  • On the base body 5.2 seated relative to the base body 5.2 rotatable rotary ring 5.4, which is supplied via a stationary feed line 5.5 with polishing agent.
  • the rotary ring 5.4 does not complete the rotational movement of the spindle shaft 4.1.
  • the main body 5.2 is connected via the flexible fluid connection 5.1 with the polishing medium channel 2.1 of the base part 2.
  • the flexible fluid connection 5.1 could justify an influence.
  • the base part 2 is formed as a composite part.
  • the base part 2 a formed of plastic dome 2.2 as a further part of the ball joint for receiving the ball head 4.2.
  • the cap 2.2 is fixed inside the base part 2 formed of aluminum.
  • the base part 2 formed from aluminum is therefore sufficiently wear-resistant against the background of the very aggressive polishing agent on the one hand and the multiple polishing plate change on the other hand.
  • a second fluid connection 5.1 ' is provided.
  • the fluid connection 5.1, 5.1 ' has a meandering line part 5.1a, 5.1a' increased flexibility, wherein the respective port 2.3, 2.3 ', 5.6, 5.6' on the same side of the base part 2 and the spindle shaft 4.1 is arranged.
  • the forces of the fluid connection 5.1, 5.1 'acting on the base part 2 via the first connection 2.3, 2.3' are thus equalized with respect to the tilting movement of the base part 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
EP20120160912 2011-03-25 2012-03-23 Dispositif de polissage avec passage tournant Active EP2502703B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011015225 2011-03-25
DE201110015458 DE102011015458A1 (de) 2011-03-25 2011-03-29 Poliervorrichtung mit Drehdurchführung

Publications (3)

Publication Number Publication Date
EP2502703A2 true EP2502703A2 (fr) 2012-09-26
EP2502703A3 EP2502703A3 (fr) 2012-11-28
EP2502703B1 EP2502703B1 (fr) 2013-09-11

Family

ID=45939148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120160912 Active EP2502703B1 (fr) 2011-03-25 2012-03-23 Dispositif de polissage avec passage tournant

Country Status (3)

Country Link
US (1) US9079285B2 (fr)
EP (1) EP2502703B1 (fr)
DE (1) DE102011015458A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11691241B1 (en) * 2019-08-05 2023-07-04 Keltech Engineering, Inc. Abrasive lapping head with floating and rigid workpiece carrier

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004062319B3 (de) 2004-12-20 2006-03-02 Schneider Gmbh + Co. Kg Polierwerkzeug
DE102008061267A1 (de) 2008-12-10 2010-06-24 Schneider Gmbh & Co. Kg Poliervorrichtung mit Drehdurchführung
DE102009036981A1 (de) 2009-08-12 2011-02-17 Satisloh Ag Flexibles Polierwerkzeug zur Feinbearbeitung von optisch wirksamen Flächen an insbesondere Brillengläsern

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4593495A (en) * 1983-11-25 1986-06-10 Toshiba Machine Co., Ltd. Polishing machine
US5595529A (en) * 1994-03-28 1997-01-21 Speedfam Corporation Dual column abrading machine
DE19547085C2 (de) * 1995-12-15 1998-02-12 Wolters Peter Werkzeugmasch Läpp- oder Poliermaschine
DE19751253C2 (de) * 1997-11-19 2001-11-29 Opto Tech Optikmaschinen Gmbh Vorrichtung zum Polieren optischer Linsen
DE19905583B4 (de) * 1999-02-11 2004-11-25 Loh Optikmaschinen Ag Vorrichtung für die Zufuhr flüssiger Hilfsmittel mit abrasiven Bestandteilen bei der Feinbearbeitung optischer Flächen
DE10250856A1 (de) * 2002-10-25 2004-05-13 Carl Zeiss Verfahren und Vorrichtung zum Herstellen von optischen Gläsern
US20040176017A1 (en) * 2003-02-25 2004-09-09 Aleksander Zelenski Apparatus and methods for abrading a work piece
DE10314625B3 (de) * 2003-04-01 2004-10-14 Optotech Optikmaschinen Gmbh Verfahren und Vorrichtung zum Nacharbeiten von Präzisionsoberflächen
DE10319945A1 (de) * 2003-05-02 2005-01-27 Loh Optikmaschinen Ag Werkzeug zur Feinbearbeitung von optisch wirksamen Flächen
DE102004021721B3 (de) * 2004-04-30 2005-10-20 Schneider Gmbh & Co Kg Linsenbearbeitungsmaschine
FR2875155B1 (fr) * 2004-09-10 2006-12-08 Essilor Int Outil de polissage comportant un plateau d'entrainement et un patin amovible pour la finition d'une lentille ophtalmique
DE102007040395B4 (de) * 2007-08-27 2010-03-11 Optotech Optikmaschinen Gmbh Vorrichtung zur blockfreien Fertigung von Ein- und Mehrstärkengläsern in der Rezeptfertigung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004062319B3 (de) 2004-12-20 2006-03-02 Schneider Gmbh + Co. Kg Polierwerkzeug
DE102008061267A1 (de) 2008-12-10 2010-06-24 Schneider Gmbh & Co. Kg Poliervorrichtung mit Drehdurchführung
DE102009036981A1 (de) 2009-08-12 2011-02-17 Satisloh Ag Flexibles Polierwerkzeug zur Feinbearbeitung von optisch wirksamen Flächen an insbesondere Brillengläsern

Also Published As

Publication number Publication date
US9079285B2 (en) 2015-07-14
EP2502703A3 (fr) 2012-11-28
US20130072090A1 (en) 2013-03-21
DE102011015458A1 (de) 2012-09-27
EP2502703B1 (fr) 2013-09-11

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