EP3206837B1 - Polierteller für ein werkzeug zur feinbearbeitung von optisch wirksamen flächen an brillengläsern - Google Patents

Polierteller für ein werkzeug zur feinbearbeitung von optisch wirksamen flächen an brillengläsern Download PDF

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Publication number
EP3206837B1
EP3206837B1 EP15763495.7A EP15763495A EP3206837B1 EP 3206837 B1 EP3206837 B1 EP 3206837B1 EP 15763495 A EP15763495 A EP 15763495A EP 3206837 B1 EP3206837 B1 EP 3206837B1
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EP
European Patent Office
Prior art keywords
tool
polishing
polishing disc
foam material
ball
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EP15763495.7A
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German (de)
English (en)
French (fr)
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EP3206837A1 (de
Inventor
Peter Philipps
Andreas Kaufmann
Steffen Wallendorf
Holger Schäfer
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Satisloh AG
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Satisloh AG
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Application filed by Satisloh AG filed Critical Satisloh AG
Priority to PL15763495T priority Critical patent/PL3206837T3/pl
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B24D13/147—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising assemblies of felted or spongy material; comprising pads surrounded by a flexible material
    • 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
    • B24B13/01—Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools
    • B24B13/012—Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools conformable in shape to the optical surface, e.g. by fluid pressure acting on an elastic membrane
    • 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
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/003—Wheels having flaps of flexible abrasive material supported by a flexible material

Definitions

  • the present invention relates to a polishing plate for a tool for fine machining of optically active surfaces on workpieces, according to the preamble of claim 1.
  • Such polishing plates are used in particular in the production of prescription eyeglass lenses in bulk.
  • glasses not only lenses made of mineral glass, but also spectacle lenses made of all other common materials, such as polycarbonate, CR 39, HI-Index, etc., including plastic are to be understood.
  • the machining of the optically effective surfaces of spectacle lenses can be roughly divided into two processing phases, namely first the pre-processing of the optically effective surface to produce the recipe macrogeometry and then the fine machining of the optically effective surface to eliminate Vorbearbeitungsspuren and the desired microgeometry in shape fidelity receive. While the pre-processing of the optically effective surfaces of spectacle lenses u.a. Depending on the material of the lenses by grinding, milling and / or turning done, the optically effective surfaces of spectacle lenses are usually subjected to a fine grinding, lapping and / or polishing during the finishing.
  • polishing plates have a substantially three-part or -lagigen structure, with (1) one of the tool spindle facing, solid or rigid support or base body, on the (2.) a contrast softer layer of an elastic material, eg a foam layer is attached, the (3.) a workpiece facing abrasive or polishing film (polishing agent carrier) rests as a processing active tool component.
  • the polishing film can be adjusted within certain limits in situ to the geometry of the surface to be machined. This both in “static” terms, ie from spectacle lens to spectacle lens, which is to be processed and which differ in their geometry, in particular the surface curvature, as a rule, as well as in “dynamic” terms, ie during the actual processing of a particular Spectacle lens in which a relative movement between the polishing plate and the spectacle lens takes place.
  • the elasticity of the foam layer has a significant influence on the removal behavior of the polishing plate during the polishing process.
  • the radii of curvature of the optically effective surfaces (sphere or cylinder in the case of approximately toric surfaces) of the spectacle lenses range from infinity (flat surface) to approx. 35 mm in the standard effective range (0 to approx. 14 dioptres).
  • additional, rather microgeometric, influencing factors, such as addition or asphericity are added here.
  • geometry-different types of beater are needed in the above prior art, which differ in particular in the (pre) curvature of the machining-active tool surface.
  • polishing tool concepts in the formulation manufacture include e.g. seven geometry-different types of beater.
  • this necessitates a tool change if successive spectacle lenses are to be machined which differ in their geometry from one another so that they can not be polished with one and the same polishing plate.
  • Each tool change comes at the expense of productivity in the recipe production.
  • polishing tool concepts for spectacle lens manufacturing that manage with up to at least three different polishing tool types to cover the standard range of effectiveness.
  • Such polishing tools are for example in the document US 7,559,829 B2 shown.
  • an elastically resilient support structure is inserted, which is a star-shaped part with a plurality of leaf spring-like acting spring arms and a elastic ring for supporting the spring arms relative to the base body comprises.
  • a tool change is also required if successively to be polished lenses vary greatly in geometry from each other.
  • these polishing tools have a relatively complex structure.
  • JP 2003-145402 A a glass sheet polishing tool having a multi-layered structure with an upper fabric for attaching a polishing pad, an underlying rubber layer, an underlying foam layer, and finally a lower base fabric for attachment to a support body.
  • the invention is based on the object starting from the prior art, as he by the document EP 2 014 412 A1 is represented to create a polishing plate as simple as possible for a tool for fine machining of optically effective surfaces of spectacle lenses, which allows an increase in productivity in the recipe production.
  • a polishing plate for a tool for fine machining of optically effective surfaces of spectacle lenses which has a central axis having base body to which a softer relative to the base body intermediate layer of an elastic material is fixed, on which rests a polishing agent, the intermediate layer at least two areas of different hardness, which are arranged one behind the other in the direction of the central axis and are formed by mutually different foam layers, wherein the foam adjacent to the base body foam layer is softer than the foam layer on which the polish carrier rests, and wherein, determined in the case of a full-surface Compression, the static modulus of elasticity of the harder foam layer is between 0.40 and 1.50 N / mm 2 , while the static elastic modulus of the softer foam layer is between 0.25 and 0.45 N / mm 2 .
  • a key idea here is to provide the necessary to cover the required range of action (eg 0 to 14 diopters) adaptability of the polishing plate to the macrogeometry of the lenses to be polished by the - processing or far from the attack area lower hardness of the intermediate layer (adjacent to the body foam layer) and at the same time to "bridge" large differences in the cusp of spectacle glass to spectacle lens.
  • the required surface fidelity e.g. Free-form surfaces and the desired smoothing necessary adaptability of the polishing plate to the micro-geometry of the lenses to be polished, however, is provided by the - processing or intervention area - greater hardness of the intermediate layer (foam layer on which the polish carrier rests).
  • the actual polishing or engagement surface between the polishing plate and spectacle lens can change - e.g. from almost punctiform in plan lens glass surfaces to more (circular or ring) areal with curved spectacle lens surfaces - because this can be compensated in the polishing process in particular by suitable change in the amplitude and / or frequency of the relative movement between the polishing plate and spectacle lens (Oszillationshub the tool transverse to the workpiece) ,
  • the inventors carried out practical experiments with various foam materials, in which on the one hand it was checked to what extent the geometry of the pre-machined spectacle lens was preserved or changed during polishing, and on the other hand it was investigated with which foam materials the polishing removal per unit time was as high as possible without that there were significant microstructures or imperfections on the polished surface. It was found that, determined in the case of a full-surface compression, the static elastic modulus of the harder foam layer has to be between 0.40 and 1.50 N / mm 2 , preferably between 0.80 and 1.00 N / mm 2 , while the modulus of elastic modulus of the softer foam layer should be between 0.25 and 0.45 N / mm 2 , preferably between 0.35 and 0.45 N / mm 2 .
  • the mutually different foam layers are glued together, which is only a cost-effective, also in mass production requires well manageable process step in which commercially available foam and adhesive materials can be used.
  • a suitable foam composite or sandwich could alternatively be made by foaming different types of foams together.
  • the individual foam bodies for influencing the elastic properties of the polishing plate may, in principle, deviate from a plane surface at one or both end faces. be convex or concave - as well as on the edge, for example, cylindrical, conical, spherical or annular trough - for which, however, would provide special molds.
  • the various foam layers of the intermediate layer each have a substantially constant thickness, measured along or parallel to the central axis of the base body, which opens up the possibility of producing large quantities of plate-shaped materials in the production of the polishing plates use.
  • the ratio of the substantially constant thickness of the harder foam layer to the substantially constant thickness of the softer foam layer should preferably be between 1 to 2 and 1 to 4, more preferably about 1 to 3.
  • the foam material of the individual components of the intermediate layer it has also proved to be advantageous in the experiments carried out when the softer foam layer consists of an at least partially open-pore polyether urethane elastomer, while the harder foam layer consists of a closed-cell polyether urethane elastomer.
  • this combination of materials does not present the risk of the intermediate layer becoming too saturated with the polishing agent during polishing and then excessively hardening on drying; on the other hand, the partial porosity of the intermediate layer is advantageous for the removal of the frictional heat generated by the polishing process via the polishing agent evaluate and favor the bonding of the individual layers in the preferred production of the intermediate layer.
  • the base body of the polishing plate should be substantially facing the intermediate layer have spherical end face to which the intermediate layer attached, suitably glued, this end face should have a radius of curvature, which is preferably between 35 and 42 mm, more preferably between 36 and 40 mm.
  • the base body should preferably have a diameter of between 35 and 60 mm in the region of its end face, the essentially constant thickness of the intermediate layer being measured along or parallel to the central axis preferably between 15 and 22 mm - expediently with the smaller thickness values for the smaller ones Diameter and the larger thickness values for the larger diameter.
  • polishing agent carrier it is furthermore advantageous if, in relation to the central axis of the main body, it extends on all sides over the intermediate layer of the radial direction Polishing plate protrudes.
  • This protruding region of the polish carrier can exert no pressure on the spectacle lens during polishing, so that there is no danger of the outer edge of the polish carrier imaging on the spectacle lens in the form of microstructures or preferred directions.
  • the polishing plates according to the invention can advantageously be used on a tool for fine machining of optically effective surfaces of spectacle lenses, comprising a axially and rotationally engageable on a spindle shaft of a tool spindle fastened tool holder head, wherein the polishing plate is interchangeable held on the tool holder head, including the main body of the polishing plate and the tool receiving head are provided with complementary structures for axial locking and for rotational drive of the polishing plate with the tool receiving head.
  • This causes on the one hand a simple interchangeability of the polishing plate and a secure hold of the polishing plate on the tool spindle, on the other hand, a defined, positive torque transmission from the tool spindle to the polishing plate during polishing.
  • the tool holder head may have a ball joint, with a ball socket received in a ball socket, which is formed on a fastened to the spindle shaft of the tool spindle ball pin, while the ball socket is formed in a receiving plate, with which the polishing plate can be locked.
  • the tiltability of the polishing plate advantageously allows the implementation of polishing processes with so-called "tangential polishing kinematics", in which with the lens, which by means of a workpiece spindle is rotationally driven about a workpiece axis of rotation, located in machining located polishing plate either driven by friction rotationally driven or self-rotating, while a linear drive ensures that with respect to the workpiece axis of rotation angularly defined employed tool spindle is alternately moved back and forth in the polishing machine so that the polishing plate with a relatively small path continuously across the lens flips back and forth.
  • the ball head may have a receiving bore for a transverse pin, which extends through the ball head and engages on both sides of the ball head with associated recesses in the ball socket to connect the receiving plate rotatable with the ball pin.
  • a transverse pin which extends through the ball head and engages on both sides of the ball head with associated recesses in the ball socket to connect the receiving plate rotatable with the ball pin.
  • the receiving plate so resiliently supported by an elastic ring element on a ball pin side Abstützflansch that the latched with the receiving plate polishing plate endeavors to align with its central axis with the ball pin and thus the spindle shaft of the tool spindle.
  • the polishing plate is prevented from excessive tilting movements, which on the one hand especially during the reversal of motion in the mentioned oscillation of the polishing plate on the lens has a favorable effect, since the polishing plate does not buckle and can jam in the sequence on the lens.
  • such is elastic Supporting the receiving plate of the tool when mounting or placing the polishing plate advantageous because the receiving plate in this case assumes a defined position with slight compulsion by the elastic ring member.
  • the bringing together of polishing plate and spectacle lens can also be due to the elastic (Vor) orientation of the receiving plate done so that the polishing plate touches substantially axially oriented on the lens, and not tilted, which could lead to problems with particularly thick or high-pile polishing plates , Although in principle it would also be possible to accomplish such a (pre) orientation of the polishing plate by means of a pneumatically actuated rubber bellows on the receiving plate, but this would be much more complex.
  • the base body of the polishing plate and the tool holder head can each be provided with a radially projecting collar, the frets in the mounted on the tool holder head state of the polishing plate opposite each other and are positively overlapped by means of a locking ring with a substantially U-shaped cross-section.
  • Such a circlip reliably prevents the polishing pad from inadvertently disengaging from the tool receiving head when forces occur, eg, when the polishing pad is lifted off the lens (or vice versa) during the polishing operation to change the relative tool rotational direction and / or bring fresh polishing agent to the intervention site, or when lifting at the end of the polishing process, which must always be expected with a "sucked" on the lens polishing plate. Accordingly, due to the above backup, the polishing plate and the lens can be safely moved apart at any time in the polishing process. Although the problem of unintentional release of the polishing plate from the tool holder head could also be procedurally with a sufficiently wide transverse method of the polishing plate with respect to the lens before lifting but this procedure would undesirably prolong the process times.
  • the locking ring is preferably formed by two half-rings, which are pivotally connected to each other on one side by means of a hinge and on the other side via a snap connection releasably locked together, which is not only a simple and inexpensive to produce solution that is also easy to clean but also an inexpensive (because tool-free), easy and quick handling guaranteed.
  • Fig. 1 to 6 has a polishing plate 10 for a tool 12 for fine machining of optically effective surfaces cc, cx of lenses L (see Fig. 1 and 7 ) has a central axis M having a base body 14 to which a softer in relation to the main body 14 intermediate layer 16 is attached from an elastic material on which a polishing medium carrier 18 rests, which forms the actual, outer processing surface 19 of the polishing pad 10.
  • the intermediate layer 16 has at least two areas of different hardness, which are arranged one behind the other in the direction of the center axis M, wherein the area of the intermediate layer 16 adjoining the base body 14 is softer than the area of the intermediate layer 16 on which the polishing agent carrier 18 rests , as will be explained in more detail below.
  • the two regions of the intermediate layer 16 are formed by mutually different foam layers 20, 22 of constant thickness, seen along the center axis M, namely a softer foam layer 20 on the base 14, more precisely its end face 21, and a harder foam layer 22 below the polish carrier 18.
  • the mutually different foam layers 20 and 22 are glued together at 23.
  • the polish carrier 18 is adhered to the harder foam layer 22 and the softer foam layer 20 on the end face 21 of the body 14.
  • the polishing agent carrier 18 protrudes on all sides beyond the intermediate layer 16 in a radial direction relative to the central axis M.
  • the substantially rigid base body 14 serves on the one hand with its preformed end face 21 for shaping and for supporting or supporting the above-described elastic layer structure of the polishing plate 10, on the other hand it forms the connecting piece to the rest of the tool 12, as will be described below.
  • the end face 21 of the base body 14 is substantially spherically preformed and bulges virtually the intermediate layer 16 against.
  • the end face of the main body can, however, in principle but also differently, for example in accordance with the macrogeometry of the surfaces cc or cx to be machined, e.g. be aspheric preformed.
  • the tool 12 has a tool holder head 24 with a receiving plate 25 which is axially and rotationally capable - yet releasably - attached to a spindle shaft 26 of a tool spindle 28.
  • a tool holder head 24 of the polishing plate 10 is held interchangeable, including the main body 14 of the polishing pad 10 and the tool holder head 24, more precisely its receiving plate 25 with complementary structures 29 (see in particular the Fig. 5 and 6 ) are provided for axial locking and for rotational drive of the polishing plate 10 with the tool holder head 24.
  • an elastic retaining ring 37 defined in an annular groove 36 is provided, which provides the locking with a corresponding counter-groove 38 and a seal of the interior 32.
  • the latching occurs in this case when pushing the polishing pad 10 before the driver elements 34 engage with the Mit Converseneuveriin 35, which is achievable only upon further pushing the polishing plate 10 under sealing between the wall surface 30 and the receiving shoulder 33.
  • the ball head 44 On the side facing away from the interior 32 side of the receiving plate 25 of the tool holder head 24 has a ball joint 40, with a ball socket 42 received in a ball head 44 which is fastened to a screw shaft 26 of the tool spindle 28 fastened, screwed in more detail ball pin 46.
  • the ball socket 42 is formed in the receiving plate 25, with which the polishing plate 10 can be latched.
  • the ball head 44 has a receiving bore 48 for a transverse pin 50.
  • the cross pin 50 extends through the ball head 44 with rounded ends and engages on both sides of the ball head 44 with associated recesses 52 in the ball socket 42 to the receiving plate 25 rotationally engageable with the ball pin 46 and thus with the spindle shaft 26 of the tool spindle 28 connect.
  • an annular Abstweilflansch 54 inserted and fixed by means of the ball pin 46 to the spindle shaft 26.
  • an elastic ring member 56th For example, from a suitable foam over which the receiving plate 25 of the tool holder head 24 on the ball pin side Abstweilflansch 54 resiliently supported so that the latched with the receiving plate 25 polishing plate 10 strives to be with its central axis M with the ball pin 46 and thus the Spindle shaft 26 of the tool spindle 28 personallyfluchten.
  • both the base body 14 of the polishing plate 10 and the tool holder head 24 is provided on the receiving plate 25 with a radially projecting collar 58 and 59, respectively.
  • These collars 58, 59 are in the mounted on the tool holder head 24 state of the polishing pad 10 facing each other and are positively overlapped by means of a locking ring 60 having a substantially U-shaped cross-section (see Fig. 3 ) to prevent inadvertent release of the polishing pad 10 from the tool receiving head 24.
  • the expediently made of a suitable plastic retaining ring 60 is, as clearly in the Fig. 3 .
  • Fig. 1 and 2 further details of the tool spindle 28 and shown to their installation situation in a polishing apparatus.
  • This tool spindle 28 as well as the preferred for the use of the tool 12 described here polishing device are the subject of parallel, ie filed with the same filing date German patent application DE 10 2014 015 053 A1 , to which at this point concerning the more precise construction and the Function of the tool spindle 28 and the polishing device to avoid repetition is expressly made.
  • the tool spindle 28 arranged opposite in a working space is an in Fig. 1 indicated by dashed lines workpiece spindle 68, by means of which the lens to be polished L can be driven in rotation about a held in a receptacle of the workpiece spindle 68 block piece 69 about a workpiece axis of rotation C.
  • the spindle shaft 26 of the tool spindle 28 is rotatably driven via an electric servo motor 70 by means of a belt drive 71 about a tool axis of rotation A.
  • the tool spindle 28 further includes a pneumatically actuated piston-cylinder arrangement 72, by means of which the tool 12 can be delivered axially via the spindle shaft 26 along an alignment axis Z aligned with the tool rotation axis A.
  • the tool 12 can be locked in a position close to the tool spindle by means of a latching device 74 with the tool spindle 28 (cf. Fig. 2 to 4 ).
  • the tool spindle 28 itself is flanged with servo motor 70 and belt drive 71 on a pivot yoke 76, which is pivotable about a pivot axis B defined, which is substantially perpendicular to the workpiece axis of rotation C.
  • the polishing plate 10 and the lens L rotating - the same or opposite directions, with the same or different speeds - can be driven (axes of rotation A, C).
  • the polishing plate 10 in the direction of the spectacle lens L are delivered axially (Z delivery axis).
  • the axes of rotation A, C relative to each other angularly preset or dynamically pivoted (pivot axis B) and transversely to each other (linear axis X) are.
  • the various polishing processes that can be carried out with this kinematics are well known to the person skilled in the art and will therefore not be described in detail here.
  • the range of spectacle lens curvatures which is to be polished on the optically effective surface cc should first be specified with R Lmax as the maximum radius of curvature on the "thinnest" lens L to be processed and R Lmin as the minimum radius of curvature on the most "curved" lens. to be processed lens L, as well as the diameter D L of the lenses to be polished L.
  • the diameter D W of the polishing plate 10 should be slightly smaller than the diameter D L of the lenses L to be polished, but not too small.
  • the diameter ratio D W / D L should be in the following range: 3 5 ⁇ D W D L ⁇ 1
  • a diameter D W of the polishing plate 10 of about 35 mm would be suitable.
  • a larger diameter D W of the polishing plate 10 of about 60 mm could be provided.
  • P min and P max can be a mean arrow height P m :
  • P m P min + P Max 2 and from this, determine a mean radius of curvature R Lm of the spectacle lens L to which the radius of curvature R W of the polishing disc 10 at its working surface 19 on the polishing agent carrier 18 should correspond:
  • R Lm P m 2 + D W 2 4 2
  • P m R W
  • R G R W - S P - S S
  • radii of curvature R G of the end face 21 between 35 and 42 mm were found, with a preferred range between 36 and 40 mm.
  • layer thicknesses S S were between 15 and 22 mm.
  • polishing film also called “polishing film” or “polishing” mentioned may be a commercially available, flexible and abrasion-resistant fine grinding or polishing agent carrier, such as a polyurethane (P oly ur ethane) film , which has a thickness of 0.5 to 1.4 mm and a hardness between 12 and 45 to Shore D.
  • the polishing agent carrier 18 is rather thicker if, by means of the polishing plate 10, a pre-polishing is to take place, but rather thinner in the case of a fine polishing.
  • polishing felts or heat and pressure treated foams can be used as a polish carrier 18, such as those available from Delamare, Mantes La Jolie, France.
  • a polish carrier 18 such as those available from Delamare, Mantes La Jolie, France.
  • the upper side of the harder foam layer 22 facing the polish carrier 18 can be provided with a final “casting skin” (release layer to the casting mold, not shown) which is produced by production technology, but need not, that of the intermediate layer 16 on the outside gives extra rigidity; if necessary, such a "cast skin” can even form the polish carrier 18 itself.
  • the main body 14 of the polishing plate 10 is preferably injection-molded from a plastic, such as an ABS (acrylonitrile-butadiene-styrene polymer), such as " Terluran® GP 35 " from BASF SE, Ludwigshafen, Germany.
  • a plastic such as an ABS (acrylonitrile-butadiene-styrene polymer), such as " Terluran® GP 35 " from BASF SE, Ludwigshafen, Germany.
  • polish carrier 18 for the affixing of the individual constituents of the polishing plate 10 (base 14, softer foam layer 20, harder foam layer 22, polish carrier 18), a commercially available adhesive of the " Pattex® " brand from Henkel AG & Co. KGaA, Düsseldorf, is suitable. Germany.
  • the polish carrier 18 can also be connected in a different manner more or less permanently with the intermediate layer 16, for example by vulcanization or Aufkletten. In any case, the connection between the individual components of the polishing plate 10 must be so strong that at any time during processing atecsmitworm, in particular rotational drive is guaranteed.
  • a polishing plate for a tool for fine machining of optically effective surfaces of spectacle lenses has a central body having a base body to which a softer relative to the base body intermediate layer is attached from an elastic material on which a polishing agent carrier rests.
  • the intermediate layer has at least two regions of different hardness, which are arranged one behind the other in the direction of the central axis of the base body. In this case, the region of the intermediate layer adjacent to the base body is softer than the region of the intermediate layer on which the polishing agent carrier rests.
  • the simply constructed polishing plate can thus cover a large range of spectacle lens curvatures, which in particular enables a high productivity in the production of prescriptions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP15763495.7A 2014-10-15 2015-09-16 Polierteller für ein werkzeug zur feinbearbeitung von optisch wirksamen flächen an brillengläsern Active EP3206837B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15763495T PL3206837T3 (pl) 2014-10-15 2015-09-16 Talerzyk polerski do narzędzia dla dokładnej obróbki optycznie czynnych powierzchni szkieł okularowych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014015052.6A DE102014015052A1 (de) 2014-10-15 2014-10-15 Polierteller für ein Werkzeug zur Feinbearbeitung von optisch wirksamen Flächen an Brillengläsern
PCT/EP2015/001849 WO2016058661A1 (de) 2014-10-15 2015-09-16 Polierteller für ein werkzeug zur feinbearbeitung von optisch wirksamen flächen an brillengläsern

Publications (2)

Publication Number Publication Date
EP3206837A1 EP3206837A1 (de) 2017-08-23
EP3206837B1 true EP3206837B1 (de) 2019-11-20

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EP15763495.7A Active EP3206837B1 (de) 2014-10-15 2015-09-16 Polierteller für ein werkzeug zur feinbearbeitung von optisch wirksamen flächen an brillengläsern

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Country Link
US (1) US10569387B2 (pt)
EP (1) EP3206837B1 (pt)
CN (1) CN107107315B (pt)
BR (1) BR112017007635B1 (pt)
CA (1) CA2964212C (pt)
DE (2) DE102014015052A1 (pt)
ES (1) ES2764652T3 (pt)
MX (1) MX2017004829A (pt)
PL (1) PL3206837T3 (pt)
PT (1) PT3206837T (pt)
WO (1) WO2016058661A1 (pt)

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KR102125392B1 (ko) * 2014-04-25 2020-06-22 가부시키가이샤 고지마 엔지니어링 구심식 가공기의 렌즈센터링방법, 렌즈가공방법 및 구심식 가공기
DE102016004328A1 (de) 2016-04-13 2017-10-19 Satisloh Ag Werkzeugspindel für eine Vorrichtung zur Feinbearbeitung von optisch wirksamen Flächen an Werkstücken
CN105834905A (zh) * 2016-05-30 2016-08-10 苏州微米光学科技有限公司 光学玻璃加工用夹具
DE102016006741A1 (de) * 2016-06-06 2017-12-07 Schneider Gmbh & Co. Kg Werkzeug, Vorrichtung und Verfahren zum Polieren von Linsen
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PL3206837T3 (pl) 2020-05-18
CN107107315A (zh) 2017-08-29
BR112017007635A2 (pt) 2018-01-30
CA2964212A1 (en) 2016-04-21
US10569387B2 (en) 2020-02-25
CA2964212C (en) 2022-05-31
DE202015009504U1 (de) 2018-01-16
BR112017007635B1 (pt) 2021-03-30
ES2764652T3 (es) 2020-06-04
DE102014015052A1 (de) 2016-04-21
WO2016058661A1 (de) 2016-04-21
US20170246729A1 (en) 2017-08-31
EP3206837A1 (de) 2017-08-23
CN107107315B (zh) 2020-04-21
PT3206837T (pt) 2020-01-15
MX2017004829A (es) 2017-10-12

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