DE2365084B2 - Machine for producing a high-precision aspherical surface, in particular on casting or compression molds for the production of contact lenses - Google Patents
Machine for producing a high-precision aspherical surface, in particular on casting or compression molds for the production of contact lensesInfo
- Publication number
- DE2365084B2 DE2365084B2 DE2365084A DE2365084A DE2365084B2 DE 2365084 B2 DE2365084 B2 DE 2365084B2 DE 2365084 A DE2365084 A DE 2365084A DE 2365084 A DE2365084 A DE 2365084A DE 2365084 B2 DE2365084 B2 DE 2365084B2
- Authority
- DE
- Germany
- Prior art keywords
- workpiece
- bearing
- headstock
- workpiece headstock
- 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.)
- Granted
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
- B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
- B23Q35/42—Patterns; Masters models
- B23Q35/44—Patterns; Masters models provided with means for adjusting the contact face, e.g. comprising flexible bands held by set-screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
- B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
- B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
- B23Q35/10—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only
- B23Q35/101—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool
- B23Q35/102—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool of one line
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
- B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
- B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
- B23Q35/20—Means for transforming movement of the feeler or the like into feed movement of tool or work with special means for varying the ratio of reproduction
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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
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/06—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor grinding of lenses, the tool or work being controlled by information-carrying means, e.g. patterns, punched tapes, magnetic tapes
- B24B13/065—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor grinding of lenses, the tool or work being controlled by information-carrying means, e.g. patterns, punched tapes, magnetic tapes using a template
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- 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
- Y10T82/00—Turning
- Y10T82/13—Pattern section
- Y10T82/135—Cam-controlled cutter
-
- 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
- Y10T82/00—Turning
- Y10T82/14—Axial pattern
- Y10T82/148—Pivoted tool rest
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Turning (AREA)
Description
Die Erfindung geht aus von einer bekannten Maschine (US-PS 27 25 776) zum Herstellen einer hochgenauen asphärischen Fläche mit einem Maschinengestell, einem von diesem getragenen Werkstückspindelstock mit horizontal gelagerter Werkstückspin- del und einem in einem Werkzeugträger befestigten Schneidwerkzeug, wobei der Werkzeugträger einerseits um einen vertikalen Drehzapfen gegenüber dem Maschinengestell schwenkbar ist und andererseits mittels eines von einer Kopiereinrichtung gesteuerten Schlittens geradlinig quer zur Achse des Drehzapfens verschoben werden kann.The invention is based on a known machine (US-PS 27 25 776) for producing a high-precision aspherical surface with a machine frame, a workpiece headstock carried by this with horizontally mounted workpiece spindle del and a cutting tool fastened in a tool carrier, the tool carrier on the one hand is pivotable about a vertical pivot relative to the machine frame and on the other hand by means of a slide controlled by a copier in a straight line transversely to the axis of the pivot pin can be moved.
Wenn nun eine derartige Maschine dazu verwendet werden soll, hochgenaue asphärische Flächen insbesondere auf Gieß- oder Preßformen für die Fertigung von Kontaktlinsen zu verwenden, dann Hellt sich die Aufgabe, einen insbesondere auf spannungs- und/oder anschliffbedingt vorhandenen Versatz der Werkzeugspitze gegenüber der vertikalen Schwenkachse des Werkzeugträgers und/oder der horizontalen Werkstückspindel ausgleichen zu können.If now such a machine is to be used, high-precision aspherical surfaces in particular on casting or compression molds for the production of Using contact lenses, then the task brightens one in particular on tension and / or Due to the grinding, there is an offset between the tool tip and the vertical swivel axis of the To be able to compensate for the tool carrier and / or the horizontal workpiece spindle.
Nach dem Hauptmerkmal der vorliegenden Erfindung ist zur Lösung dieser Aufgabe vorgesehen, daß die Werkstückspindel im Werkstückspindelstock axial verstellbar gelagert und der Werkstückspindelstock mittels eines Lagers um eine gegenüber der Achse der Werkstückspindel seitlich versetzt verlaufenden vertikale Achse einstellbar ist.According to the main feature of the present invention is provided to solve this problem that the Workpiece spindle in the workpiece headstock is axially adjustable and the workpiece headstock by means of of a bearing can be adjusted about a vertical axis that is laterally offset with respect to the axis of the workpiece spindle.
Weiter vorteilhafte Einzelheiten zur Ausbildung einer Maschine der bekannten Art im Sinne der Aufgabenlösung sind in den Unteransprüchen formuliertFurther advantageous details for the construction of a machine of the known type in terms of the solution to the problem are formulated in the subclaims
Nachstehend wird ein Ausfühningsbeispiel der erfindungsgemäßen Maschine anhand schematischer Zeichnungen näher erläutert. In den Zeichnungen zeigtThe following is an exemplary embodiment of the Machine according to the invention explained in more detail with reference to schematic drawings. In the drawings shows
Fig.2 die Werkstückspindelstock-Cnippe in Draufsicht mit zugehörigen Stell- und Dämpfungseinrichtungen und2 shows the workpiece headstock Cnippe in a top view with associated adjusting and damping devices and
Fig.3 einen Teilschnitt durch eine abgewandelte Ausführungsform der erwähnten Dämpfungseinrichtung.3 shows a partial section through a modified one Embodiment of the mentioned damping device.
Gemäß F i g. 1 besteht die Maschine im wesentlichen aus einem Maschinengestell 10 mit einem Sockel U, der einerseits einen in Richtung einer Achte X-Xhorizontal ausgerichteten Werkstückspindelstock 12 und andererseits einen Werkzeugspindelstock 14 trägt der mittels eines zentralen Drehzapfens 15 um eine die Achse X-X senkrecht schneidende Achse Y-Y schwenkbar angeordnet und horizontal von einer Kopiereinrichtung 16 gesteuert verschiebbar ist.According to FIG. 1, the machine consists essentially of a machine frame 10 with a base U, which on the one hand carries a workpiece headstock 12 oriented horizontally in the direction of an eighth XX and on the other hand a tool headstock 14 which is pivotably arranged by means of a central pivot 15 about an axis YY which intersects the axis XX perpendicularly and is horizontally displaceable in a controlled manner by a copier 16.
Der Werkstückspindelstock 12 ist in Höhe der Achse der Werkstückspindel 46 horizontal geteilt und auf einer genau bearbeiteten Tragplatte 32 horizontal verschiebbar. Der Werkstückspindelstock 12 nimmt die Werkstückspindel 46 in einer hydrodynamisch wirkenden Lagerung 43 auf, in der sich die Werkstückspindel 46 inThe workpiece headstock 12 is divided horizontally at the level of the axis of the workpiece spindle 46 and on one precisely machined support plate 32 horizontally displaceable. The workpiece headstock 12 takes the workpiece spindle 46 in a hydrodynamically acting manner Storage 43, in which the workpiece spindle 46 is in
axialer Richtung verschieben läßt An ihrem vorderen Ende 46Λ trägt die Spindel 46 ein insgesamt mit 47 bezeichnetes Spannfutter für das zu bearbeitende Werkstück E und am hinteren Erde 46B eine Riemenscheibe 50, über die die Spindel 46 mittels eines Treibriemens 51 von einem im Maschinengestell 10 befestigten Elektromotor angetrieben wirdCan move in the axial direction At its front end 46Λ, the spindle 46 carries a chuck, generally designated 47, for the workpiece E to be machined, and a pulley 50 on the rear earth 46B , via which the spindle 46 is driven by a drive belt 51 from an electric motor fastened in the machine frame 10 is driven
Zum Einstellen des Werkstückspindelstocks 12 auf der Tragplatte 32 ist zunächst ein Lager 61, 72 vorgesehen, das seitlich im Bereich einer der beiden spannfutterseitigen Ecken des Werkstückspindelstocks 12 angeordnet ist und um das der Werkstückspindelstock 12 gegen die Kraft einer Feder 64 verschwenkt werden kann, die etwa in der Mitte der gegenüberliegenden Seitenfläche am Spindelstock 12 angreift und sich anderenends an einem an der Tragplatte 32 befestigten Anschlag 60 abstützt Das Lager 61, 72 besteht aus einem am Werkstückspindelstock 12 befestigten halbzylindrisch konvex ausgeführten Teil 61 und einem an der Tragplatte 32 befestigten Teil 72 mit einer entsprechend konkav ausgebildeten Lagerfläche.To set the workpiece headstock 12 on the support plate 32, there is initially a bearing 61, 72 provided, the laterally in the area of one of the two chuck-side corners of the workpiece headstock 12 is arranged and around which the workpiece headstock 12 is pivoted against the force of a spring 64 can be that engages approximately in the middle of the opposite side surface on the headstock 12 and at the other end is supported on a stop 60 fastened to the support plate 32. The bearing 61, 72 consists of a semicylindrical convex part 61 fastened to the workpiece headstock 12 and a part 72 fastened to the support plate 32 and having a correspondingly concave bearing surface.
Zum Verschwenken des Werkstückspindelstocks 12 um die geometrische Achse des Lagers 61, 72 ist ein praktisch parallel zu der Seite des Werkstückspindelstocks 12, auf der das Lager 61, 72 angeordnet ist, verlaufender Doppelhebel 81 vorgesehen, dessen einer Hebelarm mit einer Nase 80 auf derselben Seite wie das Lager 61, 72 gegen den Werkstückspindelstock 12 drückt Der Hebel 81 ist horizontal mittels einer Schraube 83, die in einer an der Tragplatte 32 befestigten Leiste 85 geführt ist, um eine vertikale /,chse 82 schwenkbar, wobei eine zwischen dem Werkstückspindelstock 12 und dem Hebel 81 angebrachte Feder 87 den Hebel 81 nach außen in Richtung des Pfeils Fgegen die Schraube 83 drücktTo pivot the workpiece headstock 12 about the geometric axis of the bearing 61, 72 is a practically parallel to the side of the workpiece headstock 12 on which the bearing 61, 72 is arranged, extending double lever 81 is provided, one lever arm with a nose 80 on the same side as that Bearing 61, 72 presses against the workpiece headstock 12. The lever 81 is horizontal by means of a Screw 83, which is guided in a bar 85 attached to the support plate 32, around a vertical axis 82 pivotable, with a spring 87 attached between the workpiece headstock 12 and the lever 81 presses the lever 81 outwards in the direction of the arrow F against the screw 83
Auf diese Weise läßt sich die Lage der Achse X-Xuna damit des Werkstückspindelstocks 12 und des Werkstücks E regulieren, wobei dieser Vorgang wegen der aus F i g. 2 ersichtlichen sehr unterschiedlichen Hebelarmlängen des Doppelhebels 81 außerordentlich feinfühlig erfolgen kann.In this way, the position of the axis X-Xuna of the workpiece headstock 12 and of the workpiece E can be regulated, this process because of the from FIG. 2 very different lever arm lengths of the double lever 81 can be made extremely sensitive.
Die axiale Lage der in der Lagerung 45 längsverschiebbaren Werkstückspindel 46 ist durch eine Mikrometerschraube UO einstellbar. Diese wirkt auf die Spindel 46 über ein mit einer Kugel 91, die zwischen einer an der hinteren Stirnfläche der Spindel 46 angebrachten Einkerbung 90 und einer mit der Mikrometerschraube UO zusammenwirkenden Anschlagfläche 92 aufgenommen ist gebildetes Axiallager 90,91,92 Um den Zusammenhalt des Lagers 90,91,92 so zu sichern, sind Magnete 48 an den einander gegenüberliegenden Flächen dieser Teile angebracht.The axial position of the workpiece spindle 46, which is longitudinally displaceable in the bearing 45, is determined by a Micrometer screw UO adjustable. This acts on the spindle 46 via a ball 91 which is between a notch 90 made on the rear face of the spindle 46 and one with the Micrometer screw UO interacting stop surface 92 is added formed axial bearing 90,91,92 To the cohesion of the camp 90,91,92 so To secure, magnets 48 are attached to the opposing surfaces of these parts.
Die Mikrometerschraube 110 wirkt auf das Axiallager 90, 91, 92 über ein in der Verlängerung der Werkstückspindel 46 liegendes Gehäuse 93, das sich in Richtung des Pfeils F2 auf der Tragplatte 32 mittels einer an sich bekannten und daher nicht wiedergegebenen Gleitvorrichtung verlagern kann.The micrometer screw 110 acts on the axial bearing 90, 91, 92 via a housing 93 lying in the extension of the workpiece spindle 46, which can move in the direction of arrow F2 on the support plate 32 by means of a sliding device known per se and therefore not shown.
Der die Anschlagfläche 92 bildende vordere Teil des Gehäuses 93 läßt sich in Längsrichtung mittels einer mit Skalenteilung versehenen Scheibe 35 verstellen. Das Gehäuse 93 ist dazu zwischen zwei Stützen 100 und 101 angeordnet die auf der Tragplatte 32 befestigt sind Am hinteren Ende des Gehäuses 93 befinden sich seitlich herausragende Ansätze 103 und 104. The front part of the housing 93 forming the stop surface 92 can be adjusted in the longitudinal direction by means of a graduated disk 35. For this purpose, the housing 93 is arranged between two supports 100 and 101 which are fastened to the support plate 32. At the rear end of the housing 93 there are laterally protruding lugs 103 and 104.
Zwischen der Stütze 100 und dem erwähnten seitlichen Ansäte 103 ist eine Dämpfungseinrichtung 13 angeordnet die eine insgesamt mit 105 bezeichnete Dämpfungs-Kolben-Zylindereinheit, deren Zylinder mit der Stütze 100 und deren Kolben mit dem Ansatz 103 fest verbunden ist und parallel dazu vorgespannte, ebenfalls an der Stütze 100 und dem Ansäte 103 angreifende Feder 107 umfaßt Auf der anderen Seite ist in der Stütze 101 die Mikrometerschraube 110 geführt dsren freies Ende 111 mit einer Kugel 112 zusammenarbeitet die sich an einer an dem Ansatz 104 angebrachten Stützplatte 113 abstütetA damping device 13 is located between the support 100 and the mentioned lateral attachment 103 arranged the one damping piston-cylinder unit designated as a whole by 105, the cylinder with the support 100 and its piston is firmly connected to the extension 103 and preloaded parallel to it, also includes spring 107 acting on the support 100 and the attachment 103. On the other hand, is The micrometer screw 110 is guided in the support 101 and the free end 111 cooperates with a ball 112 which is supported on a support plate 113 attached to the extension 104
Durch Betätigen der Mikrometervorrichtung 110 kann man ebenfalls das Gehäuse 93 in Richtung des Pfeils F2 verlagern.By operating the micrometer device 110, the housing 93 can also be displaced in the direction of the arrow F 2.
Dank dieser Anordnung des Gehäuses 93 und der Mikrometerschraube UO kann im übrigen das Gehäuse 93, wenn die von dem Werkzeug auf das Werkstück E ausgeübte Schnittkraft einen bestimmten Schwellenwert übersteigt zurück, dh. in Fig.2 nach rechts, geschoben werden, wobei auf die Feder 107 ein Zug ausgeübt wird. Wenn der von dem Werkzeug auf das Werkstück E ausgeübte Druck wieder seine normale Größe hat, kehrt das Gehäuse 93 unter der dämpfenden Wirkung der Kolbenzylindereinheit 105 allmählich wieder in seine Ausgangslage zurück.Thanks to this arrangement of the housing 93 and the micrometer screw UO moreover, the housing 93 when the cutting force exerted by the tool on the workpiece E exceeds a certain threshold back, ie. to the right in FIG. 2, a train being exerted on the spring 107. When the pressure exerted by the tool on the workpiece E has returned to its normal level, the housing 93 gradually returns to its original position under the damping action of the piston-cylinder unit 105.
Bei der in F i g. 3 gezeichneten Ausführungsform ist die Dämpfungsvorrichtung direkt in das von einem Zylinder 120 gebildete Gehäuse eingebaut in dem ein Kolben 121 zwei Kammern 122,123 abteiltIn the case of the in FIG. 3 drawn embodiment, the damping device is directly in that of a Housing formed cylinder 120 built into which a piston 121 divides two chambers 122,123
In dem Zylinder 120 durchsetzt die mit Gewinde versehene Kolbenstange 124 des Kolbens 121 die Kammer 122 und trägt einen Ring 128, der sich axial verschieben läßt und gegen Verdrehen durch eine Nut 129 und eine in dieser laufenden Schraube 130 gesichert ist. Die Kugel 131 des Axiallagers befindet sich auch hier zwischen einer Seite einer mit Skalenteilung versehenen Scheibe 132, die mit der genannten Kolbenstange 124 verbunden ist, und der rückwärtigen Stirnfläche der Spindel 46.In the cylinder 120, the threaded piston rod 124 of the piston 121 passes through the chamber 122 and carries a ring 128 which can be moved axially and is secured against rotation by a groove 129 and a screw 130 running in this. Here, too, the ball 131 of the axial bearing is located between one side of a graduated disk 132, which is connected to the aforementioned piston rod 124, and the rear face of the spindle 46.
Auf die andere Seite des Kolbens 121 wirkt in der Kammer 123 eine Regulierfeder 135, die von außen durch eine Schraube 136 einstellbar ist A regulating spring 135, which can be adjusted from the outside by a screw 136, acts on the other side of the piston 121 in the chamber 123
Der Zylinder 120 ist mit einem seitlichen Ansatz 138 versehen, der über ein übliches Rückschlagventil 139 und eine Drosseldüse 140 mit der Kammer 123 verbunden ist.The cylinder 120 is provided with a lateral extension 138, which via a conventional check valve 139 and a throttle nozzle 140 is connected to the chamber 123.
In analoger Weise wie bei der vorbeschriebenen Ausführungsform, ergibt sich bei Drehung der Scheibe 132 eine Längsverstellung, während ein zu schneller Rücklauf der Spindel 46 bei nachlassender Schnittkraft durch das Rückschlagventil 139 und die Drosseldüse 140 verhindert wird.In a manner analogous to the embodiment described above, this results when the disk is rotated 132 a longitudinal adjustment, while a too fast return of the spindle 46 with decreasing cutting force is prevented by the check valve 139 and the throttle nozzle 140.
Hierzu 2 Blatt ZeichnungenFor this purpose 2 sheets of drawings
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7246934A FR2212772A5 (en) | 1972-12-29 | 1972-12-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2365084A1 DE2365084A1 (en) | 1974-08-08 |
DE2365084B2 true DE2365084B2 (en) | 1981-03-12 |
DE2365084C3 DE2365084C3 (en) | 1981-10-29 |
Family
ID=9109524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2365084A Expired DE2365084C3 (en) | 1972-12-29 | 1973-12-28 | Machine for producing a high-precision aspherical surface, in particular on casting or compression molds for the production of contact lenses |
Country Status (9)
Country | Link |
---|---|
US (1) | US3881378A (en) |
JP (3) | JPS49124679A (en) |
AU (1) | AU468886B2 (en) |
CA (1) | CA1014381A (en) |
CS (1) | CS181736B2 (en) |
DE (1) | DE2365084C3 (en) |
FR (1) | FR2212772A5 (en) |
GB (1) | GB1450710A (en) |
IT (1) | IT1002331B (en) |
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FR2354165A1 (en) * | 1976-06-11 | 1978-01-06 | Gulf Western Invention Develop | Lathe for generating spherical or aspherical surfaces on workpieces - has cam mechanism and floater for advance or retract movement relative to pivot |
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DE102004041117A1 (en) * | 2004-08-24 | 2006-03-02 | Nyffenegger, Ulrich | Method and device for grinding a profile of a workpiece |
DE102005021638B4 (en) * | 2005-05-06 | 2007-03-29 | Satisloh Gmbh | Lathe for processing optical workpieces |
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DE112015001417A5 (en) | 2014-03-26 | 2016-12-08 | Schaeffler Technologies AG & Co. KG | 1-Motor-Getriebeaktor with backdrop for selecting and switching gears of a motor vehicle transmission device |
CN106541327B (en) * | 2016-12-07 | 2018-07-24 | 广东天机工业智能***有限公司 | Polishing machine |
CN106670817B (en) * | 2017-02-14 | 2018-10-09 | 王琳 | A kind of machine components precise machining device |
CN109333075B (en) * | 2018-11-26 | 2020-07-21 | 台州三麟精密工具股份有限公司 | Lathe removes base with shock attenuation effect |
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US1513883A (en) * | 1921-05-14 | 1924-11-04 | Bausch & Lomb | Machine for forming lens-grinding tools |
US2423941A (en) * | 1944-03-06 | 1947-07-15 | Eugene W Laisne | Metalworking machine |
GB587768A (en) * | 1945-01-17 | 1947-05-05 | Cooke Troughton & Simms Ltd | Improved means for grinding polishing or similarly treating surfaces of aspherical form |
GB604889A (en) * | 1945-12-07 | 1948-07-12 | Engineering Diamonds Ltd | Improvements in or relating to forming and cutting tools |
US2553528A (en) * | 1947-06-05 | 1951-05-15 | D Avaucourt Pierre De Vitry | Surfacing machine for producing lenses and similar articles |
US2725776A (en) * | 1949-05-24 | 1955-12-06 | Hopkins Alan | Lathe attachments |
NL248521A (en) * | 1959-02-18 | |||
US3139083A (en) * | 1960-02-19 | 1964-06-30 | Cincinnati Milling Machine Co | Machine tool contouring mechanism |
US3106857A (en) * | 1960-05-27 | 1963-10-15 | Lockheed Aircraft Corp | Machining and tracing apparatus |
US3212371A (en) * | 1962-06-26 | 1965-10-19 | Donald W Banke | Cam-operated turning, boring and facing attachment for lathes |
US3744357A (en) * | 1971-09-27 | 1973-07-10 | Anderson Cook Inc | Profile cutting tool |
-
1972
- 1972-12-29 FR FR7246934A patent/FR2212772A5/fr not_active Expired
-
1973
- 1973-12-26 US US427447A patent/US3881378A/en not_active Expired - Lifetime
- 1973-12-27 IT IT32240/73A patent/IT1002331B/en active
- 1973-12-28 DE DE2365084A patent/DE2365084C3/en not_active Expired
- 1973-12-28 JP JP49004485A patent/JPS49124679A/ja active Pending
- 1973-12-28 CS CS7300009068A patent/CS181736B2/en unknown
- 1973-12-28 CA CA189,123A patent/CA1014381A/en not_active Expired
- 1973-12-28 GB GB6010173A patent/GB1450710A/en not_active Expired
-
1974
- 1974-01-17 AU AU64593/74A patent/AU468886B2/en not_active Expired
-
1979
- 1979-02-28 JP JP54023270A patent/JPS5850823B2/en not_active Expired
- 1979-07-24 JP JP1979102264U patent/JPS557700U/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US3881378A (en) | 1975-05-06 |
JPS54161181A (en) | 1979-12-20 |
JPS5850823B2 (en) | 1983-11-12 |
JPS557700U (en) | 1980-01-18 |
CS181736B2 (en) | 1978-03-31 |
AU468886B2 (en) | 1976-01-29 |
DE2365084C3 (en) | 1981-10-29 |
IT1002331B (en) | 1976-05-20 |
AU6459374A (en) | 1975-07-17 |
FR2212772A5 (en) | 1974-07-26 |
JPS49124679A (en) | 1974-11-28 |
GB1450710A (en) | 1976-09-29 |
CA1014381A (en) | 1977-07-26 |
DE2365084A1 (en) | 1974-08-08 |
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C3 | Grant after two publication steps (3rd publication) | ||
8328 | Change in the person/name/address of the agent |
Free format text: DEUFEL, P., DIPL.-CHEM.DIPL.-WIRTSCH.-ING.DR.RER.NAT SCHOEN, A., DIPL.-CHEM. DR.RER.NAT. HERTEL, W., DIPL.-PHYS. OTTO, D., DIPL.-ING. DR.-ING., PAT.-ANW., 8000 MUENCHEN |
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8339 | Ceased/non-payment of the annual fee |