EP1807244A1 - Dispositif et procede de reglage de la direction de perçage d'un outil de perçage d'une lentille ophtalmique - Google Patents
Dispositif et procede de reglage de la direction de perçage d'un outil de perçage d'une lentille ophtalmiqueInfo
- Publication number
- EP1807244A1 EP1807244A1 EP05796261A EP05796261A EP1807244A1 EP 1807244 A1 EP1807244 A1 EP 1807244A1 EP 05796261 A EP05796261 A EP 05796261A EP 05796261 A EP05796261 A EP 05796261A EP 1807244 A1 EP1807244 A1 EP 1807244A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- axis
- drilling
- lens
- orientation
- drilling tool
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 191
- 238000000034 method Methods 0.000 title claims description 14
- 238000000227 grinding Methods 0.000 claims description 31
- 238000013519 translation Methods 0.000 claims description 19
- 238000009966 trimming Methods 0.000 claims description 15
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 230000003100 immobilizing effect Effects 0.000 claims description 2
- 230000037230 mobility Effects 0.000 description 33
- 238000012546 transfer Methods 0.000 description 21
- 238000003032 molecular docking Methods 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 7
- 230000003071 parasitic effect Effects 0.000 description 7
- 238000003754 machining Methods 0.000 description 6
- 210000001331 nose Anatomy 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 210000000887 face Anatomy 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000005226 mechanical processes and functions Effects 0.000 description 2
- 210000001747 pupil Anatomy 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/005—Blocking means, chucks or the like; Alignment devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
-
- 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
- Y10T29/00—Metal working
- Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
- Y10T29/5104—Type of machine
- Y10T29/5105—Drill press
- Y10T29/5107—Drilling and other
-
- 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
- Y10T29/00—Metal working
- Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
- Y10T29/5104—Type of machine
- Y10T29/5109—Lathe
-
- 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
- Y10T29/00—Metal working
- Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
- Y10T29/5104—Type of machine
- Y10T29/5109—Lathe
- Y10T29/511—Grinding attachment
-
- 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
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/55—Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
- Y10T408/561—Having tool-opposing, work-engaging surface
- Y10T408/5614—Angularly adjustable surface
-
- 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
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/91—Machine frame
- Y10T408/93—Machine frame including pivotally mounted tool-carrier
-
- 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
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/91—Machine frame
- Y10T408/93—Machine frame including pivotally mounted tool-carrier
- Y10T408/935—Machine frame including pivotally mounted tool-carrier including laterally movable tool-carrier
-
- 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
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/30—Milling
- Y10T409/306664—Milling including means to infeed rotary cutter toward work
- Y10T409/307672—Angularly adjustable cutter head
Definitions
- the technical part of the optician's profession consists in mounting a pair of ophthalmic lenses in or on the frame selected by the wearer, so that each lens is suitably positioned opposite the wearer's corresponding eye to best exercise the optical function for which it was designed. To do this, it is necessary to perform a certain number of operations.
- the optician After choosing the frame, the optician must first locate the position of the pupil of each eye in the frame of reference. It thus mainly determines two parameters related to the morphology of the wearer, namely the inter-pupillary distance as well as the height of the pupil relative to the frame.
- Clipping a lens for mounting in or on the frame chosen by the future wearer consists in modifying the outline of the lens to adapt it to this frame and / or to the desired lens shape.
- the trimming includes the overhang for shaping the periphery of the lens and, depending on whether the frame is of the type with circles or without circles with punctual pinching through a fixing hole made in the lens, beveling and / or the correct drilling of the lens.
- the overflow, (or trimming proper) consists in eliminating the superfluous peripheral part of the ophthalmic lens concerned, in order to bring back the outline, which is most often initially circular, to that of the circle or surrounding of the frame of glasses concerned or simply the desired aesthetic shape when the frame is of the type without circles.
- This overflowing operation is usually followed by a chamfering operation which consists in cutting or chamfering the two sharp edges of the edge of the overflowed lens.
- a chamfering operation which consists in cutting or chamfering the two sharp edges of the edge of the overflowed lens.
- these overflowing, chamfering and beveling operations are successively carried out on the same trimming device which is generally constituted by a grinding machine, called a grinder, equipped with a train of suitable grinding wheels.
- the trimming of the lens and, possibly, the reduction of the sharp edges (chamfering) are followed by the appropriate drilling of the lenses to allow the attachment of the branches and the nasal bridge of the frame without circle.
- the drilling can be carried out on the grinder which is then equipped with the corresponding tools or on a separate drilling machine.
- this orientation function leads to the design of a new machine architecture taking into account the size of the actuators and encoders to be installed. This difficulty has led some manufacturers to simply eliminate this orientation function of the drilling axis which in this case is fixed and parallel to the axis of rotation of the lens. This then results in a function which quickly presents limits of use on the glasses having a camber of the front face.
- a lens trimming grinder mainly comprises, on a chassis, on the one hand a machining station, which is equipped with one or more overflow grinding wheel (s) and one or more grinding wheel (s) beveling, and possibly chamfering, rotatably mounted about an axis under the control of a drive motor, and on the other hand a carriage, which is equipped, parallel to the axis of said grinding wheels, with two coaxial shafts for locking and rotating the lens. These two shafts are mounted to rotate around their common axis (which is also the locking axis) under the control of one or two drive motor (s) and to slide axially relative to each other under the control of another engine.
- a machining station which is equipped with one or more overflow grinding wheel (s) and one or more grinding wheel (s) beveling, and possibly chamfering, rotatably mounted about an axis under the control of a drive motor
- a carriage which is equipped, parallel to the axis of said grinding wheels, with two coaxial shafts for locking
- the two shafts each have a free end facing the other and the free ends of the two shafts, which face each other, are thus capable of blocking the lens to be treated by axial clamping.
- the carriage is mounted movable on the chassis, on the one hand transversely with respect to the axis of the grinding wheels, under the control of support means urging it in the direction of said axis (in a movement called “restitution”), and, d on the other hand, axially, parallel to the axis of these grinding wheels, under the control of appropriate control means (in a movement called “transfer”).
- Restitution a movement
- transfer axially, parallel to the axis of these grinding wheels
- this carriage can for example be pivotally mounted parallel to this axis (the carriage is then usually called "rocker"), or be mounted movable in translation perpendicular thereto.
- Drilling and / or grooving and / or chamfering modules can, if necessary, be loaded on a mobile support to allow, if necessary, the drilling or grooving of the lens after its trimming.
- An object of the present invention is to provide a solution to the aforementioned problem of precision and cost.
- drilling the lens being fixed on a rotary support about an axis of rotation of the lens
- the device comprising pivoting means to allow the pivoting of the drilling axis of the drilling tool around said orientation axis relative to said axis of rotation of the lens support, and adjustment means for adjusting the angular position of the drilling tool around said orientation axis
- device comprising first mobility means to allow relative mobility of the drilling tool relative to the lens to be drilled, or vice versa, according to a first degree of mobility distinct from the pivoting of the drilling axis of the drilling tool around said orientation axis, said adjustment means being arranged to controlling the pivoting of the drilling axis of the drilling tool around said orientation axis, by means of said first degree of relative mobility of the drilling tool with respect to the lens to be drilled.
- An analogous method is also proposed for adjusting the orientation of the drilling axis of a drilling tool for an ophthalmic lens, around at least one orientation axis substantially transverse to said drilling axis. , comprising a pivoting of the drilling axis around said orientation axis, characterized in that, for adjusting the orientation of the drilling axis, the pivoting of the drilling axis around said orientation axis is controlled by means of a first relative movement, in translation or tilting, of the drilling tool relative to the lens to be drilled, distinct from the pivoting of the drilling axis of the drilling tool around said axis d 'orientation.
- the invention therefore achieves a saving in means by conferring on the transverse mobility means, in addition to their first function of adjusting the position of the drilling tool in the plane of the lens, a second function of adjusting the orientation the axis of this drilling tool relative to the lens for drilling in the desired orientation.
- FIG. 1 is a general schematic perspective view of a clipping grinder
- - Figure 2 is a perspective view of a trimming grinder equipped with a drilling drill and a device for adjusting the orientation of this drill according to the invention
- - Figure 3 is a partial perspective view of the grinder of Figure 2 showing, from another angle and on a larger scale, the orientation adjustment device of the drill, before engagement of the finger in the orientation ramp;
- FIG. 4 is a detailed perspective view showing, from yet another angle, the drilling module alone;
- FIG. 5 is a sectional view of the drilling module in the plane V of Figure 4 passing through the axis of the drilling bit;
- FIG. 7 is a sectional view along the plane VII-VII of Figure 6;
- FIG. 8 is a detailed front view of the cam portion of the adjusting means
- Figure 9 is a perspective view similar to Figure 3, illustrating the engagement of the adjusting finger of the drilling tool in a docking area of the cam of the adjusting means;
- FIG. 12 is a perspective view similar to Figure 3, illustrating the disengagement, after adjusting the orientation, of the adjusting finger of the drilling tool with the cam of the adjusting means;
- FIG 13 is a diagram illustrating the parasitic displacement along the axis of orientation of the drilling tool;
- FIG. 14 is a view similar to Figure 4, illustrating another embodiment in which the pivoting of the drilling axis around its axis of orientation is controlled by means of a displacement in a substantially parallel direction to the axis of the lens to be drilled;
- the rotation ROT of the shafts 12, 13 is controlled by a central electronic and computer system (not shown) such as an integrated microcomputer or a set of dedicated integrated circuits (ASIC).
- a central electronic and computer system such as an integrated microcomputer or a set of dedicated integrated circuits (ASIC).
- Each of the shafts 12, 13 has a free end which faces the other and which is equipped with a blocking nose 62, 63.
- the two blocking noses 62, 63 are equipped with a blocking nose 62, 63.
- 63 are generally of revolution around the axis A2 and each have an application face 64, 65 generally transverse, arranged to bear against the corresponding face of the ophthalmic lens L.
- the nose 62 is in one piece and is fixed without any degree of mobility, either in sliding or in rotation, to the free end of the shaft 12.
- the nose 63 has two parts: a pellet application 66 intended to cooperate with the lens L and carrying for this purpose the useful face 65 and a tail 67 arranged to cooperate with the free end of the shaft 13, as we will see in more detail below.
- the pad 66 is attached to the tail 67 by a cardan link 68 transmitting the rotation about the axis A2 but allowing the orientation of the pad 66 around any axis perpendicular to the axis A2.
- the useful faces 64, 65 of the noses are preferably covered with a thin lining of plastic or elastomeric material. The thickness of this lining is of the order of 1 to 2 mm. It is for example a flexible PVC or a neoprene.
- the shaft 13 is movable in translation along the blocking axis A2, opposite the other shaft 12, to achieve the axial compression tightening of the lens L between the two blocking noses 62, 63.
- the shaft 13 is controlled for this axial translation by a drive motor via an actuation mechanism (not shown) controlled by the central electronic and computer system.
- the other shaft 12 is fixed in translation along the blocking axis A2.
- the clipping device comprises, on the other hand, a train of at least one grinding wheel 14, which is locked in rotation on a third axis A3 parallel to the first axis A1, and which is also duly driven in rotation by a motor not represented.
- the axes Ai, A2 and A3 have only been shown schematically in broken lines in Figure 1 which illustrates the general principle of constitution of a grinder, incidentally known in itself.
- the grinder 10 comprises a train of several grinding wheels 14 mounted coaxially on the third axis A3, for roughing and finishing the overhang of the ophthalmic lens 12 to be machined.
- These different grinding wheels are each adapted to the material of the cut lens and to the type of operation carried out (roughing, finishing, mineral or synthetic material, etc.).
- the wheel train is attached to a common shaft of axis A3 ensuring their rotational drive during the overflowing operation. This common shaft, which is not visible in the figures, is controlled in rotation by an electric motor 20 controlled by the electronic and computer system.
- the train of grinding wheels 14 is also movable in translation along the axis A3 and is controlled in this translation by a controlled motorization.
- the whole set of grinding wheels 14, its shaft and its motor is carried by a carriage 21 which is itself mounted on slides 22 integral with the frame 1 to slide along the third axis A3.
- the translational movement of the grinding wheel carriage 21 is called “transfer” and is noted TRA in FIGS. 2.
- This transfer is controlled by a motorized drive mechanism (not shown), such as a screw and nut system or rack and pinion, controlled by the central electronic and computer system.
- a motorized drive mechanism (not shown), such as a screw and nut system or rack and pinion, controlled by the central electronic and computer system.
- the pivoting capacity of the rocker 11 is used around the axis A1.
- This pivoting in fact causes a displacement, here substantially vertical, of the lens L sandwiched between the shafts 12, 13 which brings the lens closer or further away from the grinding wheels 14.
- This mobility which makes it possible to restore the desired form of overflow and programmed in a system electronic and computer, is called restitution and is noted RES in the figures.
- This RES restitution mobility is controlled by the central electronic and IT system.
- the grinder 10 comprises, for this restitution, a link 16, which, articulated to the chassis 1 around the same first axis A1 as the rocker 11 at one of its ends, is articulated , at the other of its ends, along a fourth axis A4 parallel to the first axis A1, to a nut 17 movably mounted along a fifth axis A5, commonly known as the restitution axis, perpendicular to the first axis A1, with, intervening between this link 16 and the rocker 11, a contact sensor 18. also.
- This contact sensor 18 is, for example, constituted by a Hall effect cell or a simple electrical contact.
- the nut 17 is a threaded nut in screw connection with a threaded rod 15 which, aligned along the fifth axis A5, is rotated by a restitution motor 19.
- This motor 19 is controlled by the central electronic and computer system.
- T the pivot angle of the rocker 11 around the axis A1 relative to the horizontal. This angle T is associated with the vertical translation, denoted R, of the nut 17 along the axis A5.
- the ophthalmic lens L to be machined When, duly sandwiched between the two shafts 12, 13, the ophthalmic lens L to be machined is brought into contact with the grinding wheel 14, it is the object of an effective removal of material until the rocker 11 abuts against the rod 16 according to a support which, being made at the level of the sensor contact 18, is duly detected by it.
- a strain gauge is associated with the rocker to measure the advance machining force applied to the lens. In this way, the grinding advance force applied to the lens is continuously measured during machining and the progression of the nut 17, and therefore of the rocker 11, is controlled so that this force remains below a maximum set value. This set value is, for each lens, adapted to the material and to the shape of this lens.
- the grinder illustrated in FIG. 2 further comprises a finishing module 25 which embeds chamfering and creasing grinders 30, 31 mounted on a common axis 32 and which is movable according to a degree of mobility, in a direction substantially transverse to the axis A2 of the shafts 12, 13 for holding the lens as well as to the axis A5 of the RES reproduction.
- This degree of mobility is called retraction and is noted ESC in the figures.
- this retraction consists of a pivoting of the finishing module 25 around the axis A3.
- the module 25 is carried by an arm 26 secured to a tubular sleeve 27 mounted on the carriage 21 to pivot around the axis A3.
- the sleeve 27 is provided, at its end opposite the arm 26, with a toothed wheel 28 which meshes with a pinion (not visible in the figures) fitted to the shaft of an electric motor 29 secured to the carriage 21.
- the degrees of mobility available on such a clipping grinder are: - the rotation of the lens making it possible to rotate the lens around its holding axis, which is generally normal to the general plane of the lens,
- the transfer consisting of an axial relative mobility of the lens (that is to say perpendicular to the general plane of the lens) relative to the grinding wheels, making it possible to position vis-à-vis the lens and the clipping grinding wheel chosen.
- the retraction consisting of a transverse relative mobility, in a direction distinct from that of the restitution, of the finishing module relative to the lens, making it possible to put in the position of use and to store the finishing module.
- the general object of the invention is to integrate a drilling function with this grinder.
- the module 25 is provided with a drill 35 whose spindle is equipped with a mandrel 36 for fixing a drill 37 along a drilling axis A6.
- the drill 35 is mounted on the module 25 to pivot about an orientation axis A7 substantially transverse to the axis A3 of the grinding wheels 14 as well as to the axis A5 of restitution and, therefore, substantially parallel to the direction d 'ESC retraction of the module 25.
- the drilling axis A6 is thus orientable around the orientation axis A7, that is to say in a plane close to the vertical.
- This pivoting orientation of the drill 35 is denoted PIV in the figures. It is the only degree of mobility dedicated to drilling.
- the integration of the drilling function within an overflow machine however implies that the drilling tool is suitably positioned opposite the position of the hole to be drilled on the lens. According to the invention, this positioning is desired by optimizing the use of the degrees machining mobility already existing and above all by avoiding creating additional degrees of mobility and / or control mechanisms dedicated to drilling.
- the module 25 is pivotally controlled around the axis A3 (ESC retraction) to adopt several main angular positions, including:
- the drill 35 has a cylindrical handle 40 of axis A7 which is pivotally received in a corresponding bore 41 of the same axis A7 formed in the body 42 of the module 25.
- the drill 35 can thus pivot around the axis of orientation A7 on a range of angular positions corresponding to the same inclination of the axis of drilling A6 relative to the lens to be drilled when the module 25 comes into the drilling position.
- This range of angular positions is physically delimited by two angular stops integral with the body 42 of the module 25, visible in FIG. 4.
- the pivoting of the sleeve 40 around the axis A7 is braked permanently by friction braking means.
- braking means are here produced in the form of a drum type brake, comprising piston 50 of axis A8 perpendicular to axis A7.
- This piston is received in a bore 43 of axis A8 which opens into the bore 41 of the handle 40.
- the piston 50 can thus slide along the axis A8. It has one end 51 which is located opposite the handle 40 of the drill 35 and which is provided with a protuberance 52 of trapezoidal section forming a crescent brake segment able to cooperate with a groove 53 of corresponding trapezoidal section formed on the outer face of the handle 40 which then forms the brake drum.
- a return spring 47 is partially received inside the piston 50, which is hollowed out.
- the cam path of the plate 50 is constituted by a trench 51 formed in the recess of the useful face 58 of the plate 50.
- This trench better visible in FIG. 8, has a general shape of inverted V, the branches of which constitute two parts distinct functions: - a docking or engagement zone 53 used for docking and engagement of the end 39 of the finger 38, as well as for initializing the inclination of the drill 35 around of the orientation axis A7, - an adjustment portion 52 used to adjust the inclination of the drill 35 around the orientation axis A7.
- This embodiment of the adjustment means is not limiting.
- it is possible to provide alternative solutions for adjusting the orientation of the drill 35 such as for example: - replacement of the cam by a toothed sector.
- the reset function of the area 53 of the trench 51 is exerted by the lower wall 57 which forms for the end 39 of the finger 38 a reset ramp.
- This reset ramp 57 is in fact arranged obliquely on the path of the end 39 of the finger 38 of the drill 35 during the retraction pivoting ESC of the module 25, so that, during this pivoting retraction of the module 25 towards its drilling position, in the direction of the lens, the end 39 of the finger 38 engages against the reset ramp 57 and slides thereon being forced by it to rotate the drill 35 around the orientation axis A7 towards an initial angular position corresponding to a parallelism of the drilling axis A6 with the axis A2 for holding and rotating the lens.
- This initial angular position is reached, as illustrated in FIG. 10, when the spherical end 39 of the finger 38 reaches the top of the reset ramp 57.
- the electronic and computer system controls the retraction pivot ESC of the module 25 for this purpose.
- the lever 60 then extends obliquely relative to the transfer direction TRA.
- FIG. 13 the drilling dynamics are shown diagrammatically.
- the plane of Figure 13 is perpendicular to the axis A2 of the lens.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Drilling And Boring (AREA)
- Eyeglasses (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0411174A FR2874526B1 (fr) | 2004-10-20 | 2004-10-20 | Dispositif et procede de reglage de la direction de percage d'un outil de percage d'une lentille ophtalmique |
PCT/FR2005/002028 WO2006042917A1 (fr) | 2004-10-20 | 2005-08-04 | Dispositif et procede de reglage de la direction de perçage d'un outil de perçage d'une lentille ophtalmique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1807244A1 true EP1807244A1 (fr) | 2007-07-18 |
EP1807244B1 EP1807244B1 (fr) | 2013-10-09 |
Family
ID=34950163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05796261.5A Active EP1807244B1 (fr) | 2004-10-20 | 2005-08-04 | Dispositif et procede de reglage de la direction de perçage d'un outil de perçage d'une lentille ophtalmique |
Country Status (8)
Country | Link |
---|---|
US (1) | US7975355B2 (fr) |
EP (1) | EP1807244B1 (fr) |
JP (1) | JP5154938B2 (fr) |
KR (1) | KR101293657B1 (fr) |
CN (1) | CN101043976B (fr) |
ES (1) | ES2441730T3 (fr) |
FR (1) | FR2874526B1 (fr) |
WO (1) | WO2006042917A1 (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4841269B2 (ja) * | 2006-02-28 | 2011-12-21 | 株式会社ニデック | 眼鏡レンズ加工装置 |
FR2906746B1 (fr) | 2006-10-10 | 2009-05-22 | Essilor Int | Dispositif d'usinage de lentilles ophtalmiques comprenant une pluralite d'outils d'usinage disposes sur un module orientable |
FR2912335B1 (fr) * | 2007-02-13 | 2009-04-17 | Essilor Int | Machine de detourage d'une lentille de lunettes,pourvue d'un porte-outils tournant sur lequel sont montes plusieurs outils de travail |
KR101079037B1 (ko) * | 2008-09-30 | 2011-11-02 | 주식회사 휴비츠 | 드릴링 장치를 구비한 안경렌즈 가공장치 |
FR2962676B1 (fr) * | 2010-07-13 | 2012-08-03 | Essilor Int | Procede de detourage d'une lentille ophtalmique de lunettes comportant un film de revetement. |
FR2972382B1 (fr) * | 2011-03-10 | 2013-04-26 | Briot Int | Machine de meulage de verres optiques et procede de meulage associe |
FR3002871B1 (fr) * | 2013-03-08 | 2015-03-13 | Essilor Int | Dispositif de detourage de lentilles ophtalmiques |
FR3008914B1 (fr) * | 2013-07-26 | 2015-09-04 | Essilor Int | Procede et machine de gravure de lentilles optiques |
USD740949S1 (en) * | 2013-09-09 | 2015-10-13 | Essilor International (Compagnie Générale d'Optique) | Ophthalmic lens edger |
JP6503837B2 (ja) * | 2015-03-31 | 2019-04-24 | 株式会社ニデック | 眼鏡レンズ加工装置 |
CN106002535B (zh) * | 2015-03-31 | 2020-05-22 | 尼德克株式会社 | 眼镜镜片加工装置 |
JP6596878B2 (ja) * | 2015-03-31 | 2019-10-30 | 株式会社ニデック | 眼鏡レンズ加工装置、及び眼鏡レンズ加工プログラム |
US20180272493A1 (en) * | 2017-03-23 | 2018-09-27 | Ncrx Optical Solutions Inc. | Manually operated lens cribber |
CN118253812B (zh) * | 2024-05-11 | 2024-11-29 | 苏州市职业大学 | 一种歪转型蒸汽喷嘴打孔装置 |
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JPS61236411A (ja) * | 1985-04-09 | 1986-10-21 | Kiyokuyou Kogyo Kk | 穿孔部の面取り装置 |
DE4330058A1 (de) * | 1993-09-06 | 1995-03-09 | Fischer Artur Werke Gmbh | Bohrvorrichtung zur Herstellung von Bohrlöchern mit Hinterschneidung |
DE19524391A1 (de) * | 1994-07-09 | 1996-01-11 | Wernicke & Co Gmbh | Verfahren zum Polieren sowie ggf. Bohren, Schneiden und Schweißen von Brillengläsern |
JP3602175B2 (ja) * | 1994-12-09 | 2004-12-15 | 株式会社トプコン | リムレスレンズ用穴開け装置とこれを用いた玉摺機とこの玉摺機に使用されるメガネ用形状測定装置 |
DE19514379A1 (de) * | 1995-04-19 | 1996-10-24 | Fischer Artur Werke Gmbh | Bohrvorrichtung zur Herstellung von Bohrlöchern mit Hinterschneidung |
JP3807647B2 (ja) * | 1997-11-11 | 2006-08-09 | コマツ工機株式会社 | カムシャフト加工機 |
DE19804428A1 (de) | 1998-02-05 | 1999-08-19 | Wernicke & Co Gmbh | Verfahren zum Markieren oder Bohren von Löchern in Brillengläsern und Vorrichtung zur Durchführung des Verfahrens |
JP3916445B2 (ja) * | 2001-11-08 | 2007-05-16 | 株式会社ニデック | 眼鏡レンズ加工装置 |
FR2838364B1 (fr) * | 2002-04-12 | 2005-01-07 | Essilor Int | Procede de chanfreinage d'une lentille ophtalmique comporatnt une etape de releve sans contact |
JP4098046B2 (ja) * | 2002-09-20 | 2008-06-11 | 株式会社トプコン | レンズ研削加工装置 |
CN2644088Y (zh) * | 2003-07-28 | 2004-09-29 | 信咚企业股份有限公司 | 钻孔机激光辅助中心对准装置 |
JP4290672B2 (ja) * | 2005-04-28 | 2009-07-08 | 株式会社ニデック | 眼鏡レンズ周縁加工装置 |
-
2004
- 2004-10-20 FR FR0411174A patent/FR2874526B1/fr not_active Expired - Fee Related
-
2005
- 2005-08-04 US US11/665,607 patent/US7975355B2/en active Active
- 2005-08-04 KR KR1020077011566A patent/KR101293657B1/ko active Active
- 2005-08-04 JP JP2007537318A patent/JP5154938B2/ja not_active Expired - Fee Related
- 2005-08-04 CN CN2005800360063A patent/CN101043976B/zh active Active
- 2005-08-04 WO PCT/FR2005/002028 patent/WO2006042917A1/fr active Application Filing
- 2005-08-04 EP EP05796261.5A patent/EP1807244B1/fr active Active
- 2005-08-04 ES ES05796261.5T patent/ES2441730T3/es active Active
Non-Patent Citations (1)
Title |
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See references of WO2006042917A1 * |
Also Published As
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US20090047081A1 (en) | 2009-02-19 |
EP1807244B1 (fr) | 2013-10-09 |
FR2874526A1 (fr) | 2006-03-03 |
ES2441730T3 (es) | 2014-02-06 |
JP2008517340A (ja) | 2008-05-22 |
KR101293657B1 (ko) | 2013-08-13 |
KR20070073923A (ko) | 2007-07-10 |
WO2006042917A8 (fr) | 2007-05-18 |
CN101043976A (zh) | 2007-09-26 |
CN101043976B (zh) | 2010-12-15 |
FR2874526B1 (fr) | 2008-01-25 |
JP5154938B2 (ja) | 2013-02-27 |
US7975355B2 (en) | 2011-07-12 |
WO2006042917A1 (fr) | 2006-04-27 |
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