WO2013135331A1 - Vorrichtung zur feinbearbeitung von optisch wirksamen flächen an insbesondere brillengläsern und flexible fertigungszelle umfassend eine solche vorrichtung - Google Patents
Vorrichtung zur feinbearbeitung von optisch wirksamen flächen an insbesondere brillengläsern und flexible fertigungszelle umfassend eine solche vorrichtung Download PDFInfo
- Publication number
- WO2013135331A1 WO2013135331A1 PCT/EP2013/000249 EP2013000249W WO2013135331A1 WO 2013135331 A1 WO2013135331 A1 WO 2013135331A1 EP 2013000249 W EP2013000249 W EP 2013000249W WO 2013135331 A1 WO2013135331 A1 WO 2013135331A1
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- Prior art keywords
- drive unit
- workpiece
- pivot
- axis
- oscillation
- Prior art date
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Classifications
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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
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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
- B24B13/0031—Machines having several working posts; Feeding and manipulating devices
- B24B13/0037—Machines having several working posts; Feeding and manipulating devices the lenses being worked by different tools, e.g. for rough-grinding, fine-grinding, polishing
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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
- B24B27/00—Other grinding machines or devices
- B24B27/0084—Other grinding machines or devices the grinding wheel support being angularly adjustable
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
Definitions
- the present invention generally relates to a device for fine machining of optically active surfaces according to the preamble of patent claim 1.
- the invention relates to a device for fine machining the optically effective surfaces of spectacle lenses, as used in so-called "RX workshops", i. Production facilities for the production of individual spectacle lenses are widely used according to prescriptions.
- the invention relates to a flexible manufacturing cell for processing spectacle lenses, which comprises such a fine processing device.
- Spectacle lenses can be roughly subdivided into two processing phases, namely first the pre-processing of the optically active surface to produce the prescription macrogeometry and then the fine processing of the optically effective surface to eliminate pre-processing traces and to obtain the desired micro-geometry.
- pre-processing of the optically effective surfaces of spectacle lenses inter alia, depending on the material of the lenses by grinding (mineral glass), milling and / or turning (in plastics such as polycarbonate, CR 39, HI index, etc.
- the optical effective surfaces of spectacle lenses in the fine machining usually subjected to a fine grinding, lapping and / or polishing process, for which one uses a corresponding processing device.
- the two piston-cylinder assemblies are further by a linear drive together in a direction perpendicular to the axes of rotation of the workpiece spindles with respect to a front side of the polishing machine moved back and forth and also by means of a pivot drive together around a
- Tilting pivot axis which also runs perpendicular to the axes of rotation of the workpiece spindles, but parallel to the front side of the polishing machine.
- the pivot drive By means of the pivot drive, the angular position between the axes of rotation of the tools and workpieces can be preset before the tools are lowered by means of the piston-cylinder assemblies on the workpieces.
- the workpieces are driven in rotation, which coincides with the Workpieces in working engagement tools are rotationally driven by friction, while the linear drive causes the tools to be alternately moved back and forth with respect to the front of the polishing machine (oscillatory motion) with the tools running relatively smoothly over the workpieces and streak back (so-called "tangential kinematics").
- the linear drive is used to move tools and workpieces so far apart that a change is possible.
- the task of the invention further comprises the provision of a cost-effective design flexible manufacturing cell for pre- and fine-processing of spectacle lenses.
- a device for fine machining of the optically active surfaces on in particular spectacle lenses as workpieces comprising at least one projecting into a working space workpiece spindle via which a workpiece to be machined is rotatably driven about a workpiece axis of rotation, at least one ZuStell noticed for a tool by means of the tool is movable toward and away from the workpiece, an oscillation drive unit by means of which the adjusting device is reciprocally movable in an oscillation direction substantially perpendicular to the workpiece rotation axis during machining, and a swivel drive unit by means of the adjusting means is pivotable about a pivoting adjusting axis which is substantially perpendicular to the workpiece rotation axis and substantially normal to the oscillation direction; a pivot mechanism is provided, by means of which the ZuStellISS, the oscillation drive unit and the pivot drive unit relative to the workpiece spindle of a closing relative position under opening of the working space in an opening relative position are pivoted away and vice vers
- a delivery device by means of the pivoting mechanism according to the invention, a delivery device, the oscillation drive unit and the pivoting drive unit are included.
- the travel paths of the oscillation drive unit can be considerably shortened compared to the above-described prior art, without hindering the workpiece or tool change, so that the device according to the invention is significantly more compact and requires a smaller footprint.
- Workpiece and tool changes are - as well as maintenance and cleaning of the device - compared to the prior art described above also facilitated because a significantly larger opening cross-section is released as a result of the invention pivot under opening of the working space, by an operator and / or if necessary, automated grippers, cleaning tools or the like. can easily go into the device or get in there.
- the pivoting according to the invention can advantageously be designed such that there is a certain "turning" of the respectively pivoted main part of the device to the released opening cross section, so that the tools or workpieces in the working space not only laterally but also from the front side and thus safer to use.
- the device according to the invention not only has a relatively small space requirement, but also has good accessibility to the working space, and thus a very ergonomic design, which makes it predestined overall for use in a flexible production cell.
- the kinematic configuration of the device can in principle be taken as in the generic state of the art, in particular with an oscillation drive unit, which in the processing, the adjusting device substantially perpendicular to the workpiece axis of rotation in an axial direction and to move forth, with respect to the operator position and the front of the device back and forth.
- the oscillation movement can also take place along or essentially parallel to the front side of the device and / or be realized with a pivoting movement instead of an axial movement.
- the use of the pivot mechanism according to the invention is independent thereof. Basically, it is conceivable, a separate pivoting of ZuStell issued, oscillation drive unit and / or
- Pivoting drive unit relative to the workpiece spindle - possibly also to different pivot axes - provide to open the working space.
- the pivot mechanism has a common pivot axis for the delivery device, the oscillation drive unit and the pivot drive unit about which the Zustellinrich- device, the oscillation drive unit and the pivot drive unit together with respect Workpiece are swiveled away and vice versa.
- the pivot axis is seen from a Bedie ⁇ nerposition from behind the workspace. Compared to a likewise possible arrangement in which the pivot axis is seen from the operator position to the right or left of the working space, this has the advantage that the operator symmetrical ambidextrous unhindered work is possible, so that the device equally well from legal and Left-handed is to use. With regard to a narrow construction and mechanically simple embodiment of the device, it is further preferred if the pivot axis of the pivot mechanism is substantially parallel to the pivoting adjustment axis of the pivot drive unit.
- the swivel mechanism can advantageously have a swivel frame with a gripping section over which the feed device, the oscillation drive unit and the swivel drive unit can be manually pivoted away with respect to the workpiece spindle and vice versa.
- the swing frame can continue to open a hood or
- the pivot mechanism may have at least one Federele ⁇ ment, which facilitates the pivoting away of the Zustelleinrich- device, the oscillation drive unit and the pivot drive unit with respect to the workpiece spindle.
- the at least one spring element eg one or more gas pressure springs
- the at least one spring element can be designed, for example, in such a way that it essentially counteracts the weight of the parts to be moved away, which not only ensures a high degree of operating comfort, but is also advantageous with regard to safety at work.
- a positioning and closing mechanism may be provided which, during machining, holds the adjusting device, the oscillating drive unit and the pivoting drive unit in their closed position and a substantially vertical orientation of the - linearly preferred - currently preferred. fenden oscillating direction with respect to the workpiece axis of rotation ensured.
- the positioning and closing mechanism can thus advantageously counteract the process forces occurring during processing-for instance as a result of the application of a polishing pressure by the adjusting device-and at the same time ensure the desired relative position of the moving parts relative to one another, which is particularly the case with the polishing process with tangential kinematics mentioned above important in terms of obtaining reproducible polishing results.
- the positioning and closing mechanism can advantageously be a pressure medium cylinder, for example a pneumatic cylinder for holding the adjusting device, the oscillation drive unit and the
- the positioning and closing mechanism comprises at least one adjustable stop, possibly having a shock absorber, by means of which the alignment of the oscillation direction with respect to the workpiece axis of rotation can be adjusted.
- an adjustable stop has the particular advantage that manufacturing tolerances ⁇ taken easily into buying because simple can be compensated.
- the optionally available shock absorber can prevent damage to the device if the working space is closed excessively tight.
- the device further has a work space bounding and supporting the workpiece spindle body, are fastened to the two brackets, which carry the pivot axis of the pivoting mechanism, wherein the oscillation drive unit has a guide block, which pivots between the brackets on the pivot axis is stored.
- the oscillation drive unit may comprise two guide rods, a guide head and a guide plate mounted longitudinally displaceably in the guide block, wherein the guide rods on the one side of the guide block are interconnected via the guide head, while on the other side of the guide block via the guide plate are connected, and wherein the guide head by means of a screw against the guide block is displaced.
- the Oszillationsantriebsaku can be advantageously formed by a commercially available linear rod guide whose carriage is "fixed” as a guide block pivotally mounted on the pivot axis of the pivot mechanism, with high functional integration in the guide block.
- the pivot drive unit has a pivotal yoke supporting the adjuster pivotably mounted on the guide head of the oscillation drive unit, with between the guide plate of the oscillation drive unit and the swing yoke Lifting module is arranged, by means of which the pivot yoke is pivotable about the pivoting adjusting axis.
- two projecting into the working space of the workpiece spindles can be provided for establishing a "twin" machine, which are driven in rotation via a Rie ⁇ ment rubbed around the workpiece rotation axis, a rotatable by a rotary drive pulley, a belt and a
- the tensioning and deflection roller for the belt which sits between the workpiece spindles and is mounted on the rotary drive eccentrically to the pulley, so that the belt can be tensioned by pivoting the rotary drive.
- these measures ⁇ men are conducive to obtaining a very compact design, while in addition to tension the belt, no additional components are necessary, the latter is possible only by mere rotation or pivoting of the rotary drive.
- the device described above as a single machine, ie not used in a machine network, it must of course have a device for human-machine communication and a suitable controller, such as a PC-based CNC control, which controls their drive modules / Achsantriebe.
- a suitable controller such as a PC-based CNC control, which controls their drive modules / Achsantriebe.
- a flexible manufacturing cell for the pre- and fine processing of spectacle lenses comprises (1) a device for pre-machining the optically effective surfaces of the spectacle lenses by milling, turning and / or grinding, the controlled or controlled drive axes for workpiece and / or tool, each with associated drive module, and (2) a device for fine machining of the optically effective surfaces of the lenses by polishing, such as the device described above, which has controlled or controlled drive axes for workpiece and / or tool, respectively associated drive module, and which is as a module to the device for pre-processing - at least electrically, possibly also mechanically - docked, with the further special feature that only the device for pre-processing means for man-machine communication and a CNC Control has which the drive mod ule both devices controls.
- the electrical connection between the CNC control and the drive modules can here ⁇ by means of individual wiring or via a bus system follow.
- the device for finishing without means for man-machine communication and own CNC control can be made very inexpensive and especially in smaller RX repair shops - possibly also subsequently - be added without great effort as a module to the device for pre-processing.
- Fig. 1 is a perspective view of a flexible manufacturing cell for processing spectacle lenses obliquely top / front right, comprising - left - a device for pre-processing of the lenses (also called generator) and - right - docked thereto, inventive device for subsequent fine processing of the lenses (Polishing machine), wherein to release the view into the working space of the respective machine, a swing door of the generator and a hood of the polishing machine are swung up;
- Fig. 2 is an enlarged scale compared to FIG. 1, per ⁇ perspective view of the polishing machine of FIG. 1 obliquely from top / front right, the essential components or assemblies of the machine shows, in particular, the hood and more to simplify the presentation Parts of the cladding, the utilities (including pipes, hoses and pipes) for electricity, compressed air and polish, the polishing agent return and the measuring, maintenance and safety devices have been omitted;
- the utilities including pipes, hoses and pipes
- Fig. 3 is a scale and angle and with respect to
- FIG. 2 substantially corresponding perspective view of the polishing machine of FIG. 1, in which an upper part the machine in one of a lower part of the
- Machine is located in the swiveled position
- Fig. 4 is a fragmented on the machine housing, perspective
- FIG. 1 View of the polishing machine of FIG. 1 obliquely from above / left in front of a larger scale compared to FIGS. 2 and 3, wherein a left in Figs. 2 and 3 tool cylinder and an associated, flexible work space cover have been omitted, in particular to the view release the pivot axis behind it for the upper part of the machine;
- Fig. 5 is a scale and angle and with respect to
- FIG. 4 is a perspective view of the polishing machine according to
- Fig. 1 in the scale of Figures 4 and 5 obliquely from above / behind right, with respect to the illustration in Figures 2 and 3, the machine housing has been omitted ..;
- Fig. 7 is a scale and angle and with respect to
- Simplifications drawing corresponding to Figure 6 substantially perspective view of the polishing ⁇ machine of Figure 1, in which the upper part of the machine is in a pivoted away from the lower part of the machine position.
- Fig. 8 is a perspective view of the polishing machine according to
- Drawing simplifications of Figure 8 substantially corresponding perspective view of the polishing machine of Figure 1, in which the upper part of the machine is in a pivoted away from the lower part of the machine position ..;
- Fig. 10 is a partially broken front view of the polishing machine of Figure 1 in the scale of Figures 6 and 7 and with their drawing simplifications.
- Fig. 11 is a fragmentary front elevational view of the polishing machine of Fig. 1, similar to Fig. 10, with the upper portion of the machine in a pivoted-away position from the lower portion of the machine;
- Fig. 12 is a sectional view of the polishing machine of Figure 1 taken along section line XII-XII in Figure 10, but tilted 5 ° in the plane of the drawing to face the drive mechanism (belt drive) for the workpieces.
- Fig. 13 is a side view of the polishing machine of FIG. 1 from the left in Fig. 10, wherein - similar to Figs. 8 and 9 - compared to the representation in Figs. 6 and 7 of the drive mechanisms and associated parts for workpieces and tools in the upper Part of the machine, only a pivot yoke of the swivel drive unit and the guide block of Oszillationsantriebsein- unit with guide head, rod and plate are shown;
- FIG. 14 is a sectional view of the polishing machine according to FIG. 1
- Fig. 15 is a simplified block diagram of the CNC architecture
- a flexible manufacturing cell for pre-processing and finishing lenses L in RX garages is generally indicated at 10.
- the flexible manufacturing cell 10 comprises a device for preprocessing the optically effective surfaces cc, cx (compare FIGS. 10 and 11) of the spectacle lenses L, also called a generator 12, and a device for fine machining the optically effective surfaces cc, cx the spectacle lenses L in the form of a polishing machine 14, which is mechanically and electrically docked as a module to the generator 12, as will be described in more detail later.
- the generator 12 may be mentioned at this point only that this can be designed as a pure fast-tool lathe or combined milling lathe, as in principle, for example, from the publications EP-A-1 719 573 and EP-A-1 719 585 are known.
- the polishing machine 14 generally has (i) two workpiece spindles 20 projecting from below into a working space 18, via which the spectacle lenses L to be machined can be rotationally driven about workpiece axes of rotation C 1, C 2 , (ii) two feed devices 22 for each one tool W, by means of which the respective tool W can here be moved from above onto the assigned spectacle lens L to and from it (linear movements ZI,
- an oscillation driving unit 24 by means of which the adjusting means 22 reciprocate in an oscillation direction (linear oscillation axis X), i. be moved back and forth in the present case with respect to a front side of the polishing machine 14, wherein the oscillation axis X during processing substantially transverse to the workpiece axes of rotation Cl, C2, and (iv) a pivot drive unit 26, by means of which the adjusting means 22 to a pivoting adjusting axis B can be pivoted, which is substantially perpendicular to the workpiece axes of rotation Cl, C2 and substantially normal to the axis of oscillation X.
- the polishing machine 14 also has a pivoting mechanism 28, by means of which the adjusting devices 22, the oscillating drive unit 24 and the pivot drive unit 26 relative to the workpiece spindles 20 from a closing relative position (FIGS. 2, 4, 6, 8, 10 and 12 to 14), opening the working space 18 into an opening relative position (FIGS. 1, 3, 5, 7, 9 and 11) can be pivoted away and vice versa, namely according to the arrow S (pivotal movement) in Figs. 4 to 9, 13 and 14.
- the adjusting devices 22 By means of which the adjusting devices 22, the oscillating drive unit 24 and the pivot drive unit 26 relative to the workpiece spindles 20 from a closing relative position (FIGS. 2, 4, 6, 8, 10 and 12 to 14)
- opening the working space 18 into an opening relative position FIGS. 1, 3, 5, 7, 9 and 11
- the polishing machine a composite as a welded construction made of sheet metal machine frame 32, which also forms a part of a machine housing, in which (in addition to the visible here drive ⁇ units and mechanisms, the supply devices, control components, etc. not shown) are included.
- the machine housing is completed by cladding parts 34 and a hood 36 which consists at least partially of Plexiglas (PMMA) and is through ⁇ view and can also be pivoted by means of the pivot mechanism 28 relative to the machine frame 32.
- a base body 38 Inserted into the machine housing is also a base body 38 which is also assembled as a welded construction from metal sheets and which delimits the working space 18, in particular downwards in the figures, and carries the workpiece spindles 20 there.
- the main body 38 has laterally angled flange portions 40, which are placed on associated bearing surfaces 42 of the machine frame 32 and screwed thereto (not shown) to secure the main body 38 in the polishing machine 14. As shown in FIG.
- the machine housing of the polishing machine 14 is in terms of its shape to the machine housing of the generator 12 adapted so that the flexible manufacturing cell 10 has an overall appearance "as if in one piece”. Mechanically, in this case the machine frame 32 of the polishing machine 14 is screwed to the machine frame of the generator 12
- brackets 46 are attached from the rear to a rear wall 44 of the base body 38 at the same vertical height but with horizontal distance from each other.
- Each holder 46 has a support base 48, with which the respective holder 46 is screwed to the base body 38 (not shown), and two of the support base 48 still upwardly extending support arms in mirror-symmetrical arrangement from holder to holder, namely a shorter - with respect to the Space between the brackets 46 - "inner” bracket arm 50 and a longer “outer” bracket arm 52.
- These brackets 46 initially carry the pivot axis 30, as shown in FIGS. 13 and 14 can be seen. More precisely, according to FIG. 14, two screws 54 are provided, each of which passes through a through hole 56 formed in the respective inner support arm 50 near the support base 48 and into an associated threaded bore 58, which is provided in the front
- Swivel axis 30 is screwed in order to set the pivot axis 30 between ⁇ tween the brackets 46.
- a guide block 60 of the oscillation drive unit 24 is pivotally mounted between the brackets 46 via two bearing elements 62 which are mounted in a staggered by the pivot axis 30, stepped through hole 64 in the guide block 60.
- the pivot mechanism 28 in the illustrated embodiment two spring elements, here gas springs 66th which facilitate the pivoting away of the upper, tool-side main part of the polishing machine 14 with respect to the workpiece spindles 20 comprising the feed devices 22, the oscillation drive unit 24 and the pivot drive unit 26.
- the gas springs 66 are each hinged at one end to the free end of the outer support arm 52 of the respective associated holder 46, as best seen in Figs. 8 to 10 and 14 can be seen.
- the other end of the respective gas spring 66 is articulated to a respectively associated lower extension 68 of the guide block 60 of the oscillation drive unit 24.
- the spring force of the gas pressure springs 66 and their articulation points determining the lever arm about the pivot axis 30 are selected so that the torque generated by the weight of the pivoted components or groups about the pivot axis 30 is substantially counteracted.
- the swivel mechanism 28 is associated with a positioning and closing mechanism 70, which during machining holds the upper, tool-side main body with the feed devices 22, the oscillation drive unit 24 and the swivel drive unit 26 in the closed position and a substantially vertical alignment of the oscillation axis X. with respect to the workpiece axes of rotation Cl, C2 guaranteed.
- the positioning and closing mechanism 70 initially comprises a pressure medium cylinder, more precisely a pneumatic cylinder 72 for holding the pivotable about the pivot axis 30 components in their closed position, which has a cylinder housing 74 and a piston connected to a piston of the pneumatic cylinder 72 piston rod 76 extending from the cylinder housing 74 outstretched.
- the cylinder housing 74 of the pneumatic cylinder 72 is hinged to a bracket 78, which in turn is mounted on the support base 48 of the left in Figs. 6 to 9 bracket 46, via screws not shown here.
- the piston rod 76 of the pneumatic cylinder 72 is connected to the lower extension 68 of the guide shown in FIGS. 8 and 9. hinged block 60.
- FIGS. 8 and 13 it can be seen that when the pneumatic cylinder 72 is pressurized, as a result of which the piston rod 76 endeavors to move out of the cylinder housing 74, in the closed position the components pivotable by means of the pivot mechanism 28 or a torque is generated around the pivot axis 30 (clockwise in Fig. 13), which presses said components or groups in the direction of the workpiece spindles 20.
- the positioning and closing mechanism 70 further comprises two adjustable stops 80, each having a shock absorber 82 (in the simplest form, for example, a rubber buffer) and serve, in the closed position, the alignment of the oscillation axis X with respect to the workpiece axes of rotation Cl, C2 to adjust, and for this example may have a thread which cooperates with a mating thread (not shown).
- the adjustable stops 80 are mounted with the respective shock absorber 82 at the free ends of the inner support arms 50 of the brackets 46, such that each shock absorber 82 in the
- the guide block 60 is formed with its lower extensions 68 and its upper extensions 86 with respect to a central axis mirror-symmetrical.
- the extensions 68, 86 may be integrally formed with the rest of the guide block 60 or attached thereto in a suitable manner.
- the pivoting mechanism 28 further includes a pivotal frame 88, which is a multi-arched and upwardly angled sheet metal part.
- the swing frame 88 is not shown here in kind and attached from below to the guide block 60 of the oscillation drive unit 24.
- a grip portion 90 is attached to the swing frame 88, via which, due to the fixed connection of the pivot frame 88 to the guide block 60, the oscillation drive unit 24 and the components or groups carried therefrom, in particular the pivot drive unit 26 and ZuStell coupleden 22 can be manually pivoted about the pivot axis 30 with respect to the workpiece spindles 20 and vice versa.
- the swing frame 88 also carries the hood 36 shown in FIG. 1 for opening or closing the polishing machine 14th
- the guide block 60 has a central rear recess 100, relative to the front side of the polishing machine 14, for receiving and securing a servomotor 102 to the guide block 60.
- a central, stepped, through-bore 104 extends through the guide block 60 , through which a threaded spindle 106 of a ball screw drive, which can be driven in rotation by the servomotor 102, passes through it.
- the guide block 60 further has on both sides of the through hole 104 in each case a continuous Lagerboh- tion 108 which extends parallel to the through hole 104 and the inclusion of a pair of ball bushes (not shown in detail) is used.
- two guide rods 110 are longitudinally displaceably mounted in the guide block 60 by means of the ball bush pairs.
- the guide rods 110 are over at the end a guide plate 112 connected to each other, which has a central recess for the passage of the servomotor 102 (see Figures 4 and 6), while the guide rods 110 are connected to one another on the other side of the guide block 60 via a guide head 114.
- FIGS. 4 and 10 a nut 116 of the ball screw fixed with which the threaded spindle 106 engages.
- the guide head 114 with the guide rods 110 and the guide plate 112 by means of the driven by the servo motor 102 ball screw 106, 116 relative to the guide block 60 is axially displaceable.
- a driver 118 for the metal slide 96 of the bellows covers 94 is attached on the guide head 114.
- a pivot shaft 120 is rotatably mounted on the guide head 114, to which a pivot yoke 122 of the pivot drive unit 26 is attached.
- the pivot drive unit 26 further comprises a lifting module 124, which is closer ⁇ be written in the document EP-A-2298498, is made to the module with respect to structure and function of the lift 124 to avoid repetition.
- the lifting module 124 is articulated at its one end to the guide plate 112 of the oscillation drive unit 24, while it is articulated at its other end at a distance from the pivot shaft 120 on the pivot yoke 122.
- the swinging yoke 122 pivotally mounted on the guide head 114 of the oscillation drive unit 24 can be pivoted in a defined manner around the pivot shaft 120 by operation of the lift module 124 in which the length thereof changes (swing adjustment axis B).
- the pivot yoke 122 of the pivot drive unit 26 carries the
- the adjusting means 22 More specifically, the substantially U-shaped pivot yoke 122 according to particular to Figs. 4, 5 and 13 on both sides on its legs receiving portions 126 on which the ZuStell respondeden 22 are attached, so that the ZuStellUNEen 22 together can be pivoted about the pivot shaft 120 with the pivot yoke 122 (pivot axis B).
- the adjusters 22 include in the illustrated embodiment, two-sided acting pneumatic tool cylinder 128 - sometimes referred to as "quills" - which are known per se and therefore require no further description. In these tool cylinders 128, the polishing tools W, which are also known per se, are held free-running and pivotable at the free ends of their piston rods.
- the polishing tool W can be lifted from the spectacle lens L by suitable pressurization of the tool cylinder 128 or lowered onto the spectacle lens L and pressed against it (linear movements ZI, Z2), the polishing tool W being driven by the spectacle lens L.
- Another embodiment of the ZuStell insightfulen - possibly also with rotary drive for the polishing tool, as described in the document EP-A-2 298 498 - is also conceivable.
- the workpiece spindles 20 in the working space 18 are located on top of the work space 18
- Flanged base body 38 and engage with this each with a drive shaft 130 and an actuating mechanism for a collet at 132, by means of a on a block piece (not shown in detail) blocked lens L axially fixed and rotationally capable of rotation on the respective workpiece spindle 20 can be clamped.
- pneumatic cylinders 134 can be seen in the figures, which serve to open or close the collets 132 in a manner known per se.
- the workpiece spindles 20 projecting into the working space 18 are separated from the rotary drive 136 together via a belt drive 140 at a predetermined speed about the workpiece axes of rotation Cl, Cl rotationally driven.
- the belt drive 140 according to FIGS.
- Motor flange 138 mounted eccentrically to the pulley 144, so that the belt 146 can be tensioned by pivoting the rotary drive 136 about its axis of rotation.
- the rotary drive 136 itself is in this case with the base body 38 with the aid of screws (and possibly nuts, both not shown) screwed ver ⁇ , in the motor flange 138 or in the base 38 trained, curved elongated holes (also not shown) pass through, which pivoting of the rotary drive 136 to tension the belt 146 before tightening the screw.
- the above-described polishing machine 14 allows, for example, the following procedure, which is to be described only for a lens L, because the second lens L of the respective "RX job" in an analogous manner and at the same time polished.
- the polishing machine 14 After loading the polishing machine 14 with the polishing tools W and the lenses to be processed L, for which the upper part of the polishing machine 14 was about the pivot axis 30 up and then down again to facilitate access to the working space 18, is first by means of the pivot drive unit 26th the angle of attack of the supply control devices 22 and thus the polishing tools W with respect to the workpiece rotation axes Cl, C2 adjusted depending on the to be ⁇ working geometry of the spectacle lens L to a predetermined value (pan adjusting axis B).
- This angle of attack is not changed in the initially mentioned “tangential kinematics" during the actual polishing processing (alternatively, the angle of attack could also be changed dynamically in the sense of a "radial kinematics”).
- the polishing tool W is moved by means of the oscillation drive unit 24 in a position in which it is opposite the lens L (Oszillationsachse X). Thereafter, the polishing tool W is axially lowered by means of the adjusting device 22 in the direction of the spectacle lens L until it comes into contact therewith (linear movement Z1, Z2). Now, the polishing agent supply is turned on, and the lens L.
- polishing tool W is rotated by means of the electric rotary drive 136 in rotation (Cl, C2), taking with it the applied polishing tool W. Then, the polishing tool is oscillated by means of the oscillation drive unit 24 with relatively small strokes over the spectacle lens L (oscillation axis X), so that the polishing tool W is guided over different surface regions of the spectacle lens L.
- the polishing tool W of the (non-circular) geometry on the polished spectacle lens L also moves slightly up and down (linear movement ZI, Z2).
- polishing tool W is lifted off the spectacle lens L by means of the adjusting device 22 (linear movement ZI, Z2) after the polishing agent supply has been switched off and the rotational movement of the spectacle lens L has been stopped (workpiece axes of rotation C 1, C 2).
- the polishing tool W is moved by means of the oscillation drive unit 24 in a rear parking position (Oszillationsachse X), whereupon the upper part of the polishing machine 14 swung about the pivot axis 30 (pivotal movement S) and the lens L can be easily removed from the polishing machine 14.
- the closing or holding function perceived by the positioning and closing mechanism 70 can be secured by a safety limit switch (not shown), which ensures that the polishing operation is started only when the upper part of the machine is closed, ie lowered can be.
- a safety limit switch not shown
- a particularly cost-effective control architecture of the flexible manufacturing cell 10 shown in FIG. 1 is shown schematically. Accordingly, the
- Polishing machine 14 is connected to the generator 12 via electrical connections 150 (e.g., a bus system) as a module.
- electrical connections 150 e.g., a bus system
- the generator 12 has a device for man-machine communication HI and a CNC control, in the illustrated embodiment in the form of a PC-based control, which the drive modules (servo amplifier / inverter) both of the generator 12 and the polishing machine 14 drives.
- the polishing machine 14 does not have its own “intelligence" here, but only that for generating the actual travel commands for the controlled axles - i.e.
- the position-controlled oscillation axis X of the oscillation drive unit 24 for the polishing tools W (short: X axis)
- the pivot axis B of the pivot drive unit 26 for the polishing tools W (short: B axis)
- the speed controlled rotation axis Cl, C2 holding the lenses L. and about the rotary drive 136 driven workpiece spindles 20 (short: C-axis) - required electrical components.
- a polishing machine for spectacle lenses comprises at least one workpiece spindle projecting into a working space for rotationally driving the spectacle lens about a workpiece axis of rotation, at least one adjusting device for lowering or lifting a polishing tool relative to the spectacle lens, an oscillation drive unit for reciprocating the adjusting device an oscillation direction that is substantially transverse to the workpiece rotation axis in the polishing machining; and a pivot drive unit for pivoting the adjustment device about a pivoting adjustment axis that is substantially perpendicular to the workpiece rotation axis and substantially normal to the oscillation direction.
- a Schwenkmechanisitius is provided by means of which the ZuStell coupled, the Oszillationsantriebsaku and the pivot drive unit relative to the workpiece spindle of a closing relative position under opening of the working space in an opening relative position are pivoted away and vice versa.
- HMI device for human-machine communication
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13702897.3A EP2822730B1 (de) | 2012-03-10 | 2013-01-29 | Vorrichtung zur feinbearbeitung von optisch wirksamen flächen an insbesondere brillengläsern und flexible fertigungszelle umfassend eine solche vorrichtung |
US14/384,011 US9321145B2 (en) | 2012-03-10 | 2013-01-29 | Device for fine machining of optically effective surfaces on in particular spectacle lenses and flexible production cell comprising such a device |
MX2014009364A MX349334B (es) | 2012-03-10 | 2013-01-29 | Dispositivo para maquinado fino de superficies ópticamente efectivas, particularmente en lentes para gafas y celda de producción flexible que comprende tal dispositivo. |
BR112014019939A BR112014019939A8 (pt) | 2012-03-10 | 2013-01-29 | Dispositivo para usinagem fina de superfícies opticamente eficazes, em particular em lentes de óculos e célula de produção flexível que compreende tal dispositivo |
CN201380013472.4A CN104169045B (zh) | 2012-03-10 | 2013-01-29 | 用于精加工尤其是眼镜片上的光学有效表面的装置和包括该装置的柔性制作单元 |
IN7304DEN2014 IN2014DN07304A (de) | 2012-03-10 | 2013-01-29 | |
HK15104346.6A HK1203891A1 (en) | 2012-03-10 | 2015-05-07 | Device for fine machining of optically effective surfaces on in particular spectacle lenses and flexible production cell comprising such a device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012004547.6 | 2012-03-10 | ||
DE102012004547A DE102012004547A1 (de) | 2012-03-10 | 2012-03-10 | Vorrichtung zur Feinbearbeitung von optisch wirksamen Flächen an insbesondere Brillengläsern und flexible Fertigungszelle umfassend eine solche Vorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013135331A1 true WO2013135331A1 (de) | 2013-09-19 |
Family
ID=47678676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/000249 WO2013135331A1 (de) | 2012-03-10 | 2013-01-29 | Vorrichtung zur feinbearbeitung von optisch wirksamen flächen an insbesondere brillengläsern und flexible fertigungszelle umfassend eine solche vorrichtung |
Country Status (9)
Country | Link |
---|---|
US (1) | US9321145B2 (de) |
EP (1) | EP2822730B1 (de) |
CN (1) | CN104169045B (de) |
BR (1) | BR112014019939A8 (de) |
DE (1) | DE102012004547A1 (de) |
HK (1) | HK1203891A1 (de) |
IN (1) | IN2014DN07304A (de) |
MX (1) | MX349334B (de) |
WO (1) | WO2013135331A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3479956A1 (de) | 2017-11-07 | 2019-05-08 | Satisloh AG | Verfahren zur herstellung optischer elemente nach einem rezept |
Families Citing this family (13)
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DE102014113421B4 (de) * | 2014-09-17 | 2016-07-28 | Optotech Optikmaschinen Gmbh | Simultan-Drehmaschine für die Brillenglasfertigung |
DE102014015053A1 (de) * | 2014-10-15 | 2016-04-21 | Satisloh Ag | Vorrichtung zur Feinbearbeitung von optisch wirksamen Flächen an insbesondere Brillengläsern |
DE102015102900A1 (de) * | 2015-02-27 | 2016-09-01 | Optotech Optikmaschinen Gmbh | Simultan-Drehmaschine für die Brillenglasfertigung |
DE102015102899B4 (de) | 2015-02-27 | 2018-02-01 | Optotech Optikmaschinen Gmbh | Fräsvorrichtung für die Brillenglasfertigung mit zwei Frässtationen |
CN105364667B (zh) * | 2015-11-19 | 2019-02-12 | 长春博信光电子有限公司 | 一种双曲面高速抛光机 |
DE102016006791A1 (de) * | 2016-06-07 | 2017-12-07 | Satisloh Ag | Maschine zur Bearbeitung von Werkstücken in optischer Qualität |
US10307881B2 (en) * | 2017-02-22 | 2019-06-04 | National Optronics, Inc. | Ophthalmic lens processing apparatus with improved user accessibility |
EP3479954A1 (de) * | 2017-11-07 | 2019-05-08 | Satisloh AG | Oberflächenbearbeitungsstation zur herstellung von optischen elementen und zugehörige herstellungsanlage |
DE102017010322A1 (de) | 2017-11-08 | 2019-05-09 | Satisloh Ag | Vorrichtung zur Bearbeitung von optischen Werkstücken, insbesondere Brillengläsern |
CN109397008B (zh) * | 2018-12-03 | 2023-11-07 | 厦门理工学院 | 一种新型镜片数控切割机及控制方法 |
CN111975624B (zh) * | 2020-08-18 | 2021-11-26 | 安徽晟禾智能机械有限公司 | 一种研磨抛光机及其抛光工艺 |
CN113601321B (zh) * | 2021-07-29 | 2022-12-13 | 浙江黄岩环日光学有限公司 | 一种镜片抛光机 |
CN114559364B (zh) * | 2022-02-24 | 2023-07-04 | 苏州东辉光学有限公司 | 一种紧凑型c透镜球面研磨自动化设备 |
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-
2012
- 2012-03-10 DE DE102012004547A patent/DE102012004547A1/de not_active Withdrawn
-
2013
- 2013-01-29 WO PCT/EP2013/000249 patent/WO2013135331A1/de active Application Filing
- 2013-01-29 MX MX2014009364A patent/MX349334B/es active IP Right Grant
- 2013-01-29 EP EP13702897.3A patent/EP2822730B1/de active Active
- 2013-01-29 IN IN7304DEN2014 patent/IN2014DN07304A/en unknown
- 2013-01-29 US US14/384,011 patent/US9321145B2/en not_active Expired - Fee Related
- 2013-01-29 CN CN201380013472.4A patent/CN104169045B/zh not_active Expired - Fee Related
- 2013-01-29 BR BR112014019939A patent/BR112014019939A8/pt not_active IP Right Cessation
-
2015
- 2015-05-07 HK HK15104346.6A patent/HK1203891A1/xx not_active IP Right Cessation
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EP0758571A1 (de) | 1995-08-12 | 1997-02-19 | Loh Optikmaschinen AG | Verfahren und Werkzeug zur Erzeugung einer konkaven Oberfläche aus einem Brillenglasrohling |
WO2004037489A2 (de) * | 2002-10-25 | 2004-05-06 | Carl Zeiss Vision Gmbh | Verfahren und vorrichtung zum herstellen von optischen gläsern |
EP1719573A1 (de) | 2005-05-06 | 2006-11-08 | Satisloh GmbH | Drehmaschine mit einem einstückigen Gestell aus Polymerbeton |
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EP3479956A1 (de) | 2017-11-07 | 2019-05-08 | Satisloh AG | Verfahren zur herstellung optischer elemente nach einem rezept |
WO2019091929A1 (en) | 2017-11-07 | 2019-05-16 | Satisloh Ag | Method for manufacturing optical elements according to a prescription |
Also Published As
Publication number | Publication date |
---|---|
DE102012004547A1 (de) | 2013-09-12 |
MX349334B (es) | 2017-07-24 |
EP2822730B1 (de) | 2016-03-23 |
BR112014019939A8 (pt) | 2017-07-11 |
US9321145B2 (en) | 2016-04-26 |
MX2014009364A (es) | 2014-11-21 |
CN104169045B (zh) | 2017-06-27 |
EP2822730A1 (de) | 2015-01-14 |
US20150038061A1 (en) | 2015-02-05 |
CN104169045A (zh) | 2014-11-26 |
HK1203891A1 (en) | 2015-11-06 |
BR112014019939A2 (de) | 2017-06-20 |
DE102012004547A8 (de) | 2013-11-14 |
IN2014DN07304A (de) | 2015-04-24 |
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