CN101041229A - Lens grinding apparatus with chamfer mechanism - Google Patents
Lens grinding apparatus with chamfer mechanism Download PDFInfo
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- CN101041229A CN101041229A CNA2006100840620A CN200610084062A CN101041229A CN 101041229 A CN101041229 A CN 101041229A CN A2006100840620 A CNA2006100840620 A CN A2006100840620A CN 200610084062 A CN200610084062 A CN 200610084062A CN 101041229 A CN101041229 A CN 101041229A
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- Prior art keywords
- grinding
- chamfer
- lens
- chamfering
- lenticular blank
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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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
- B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
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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
- B24B13/02—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor by means of tools with abrading surfaces corresponding in shape with the lenses to be made
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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
- B24B27/0069—Other grinding machines or devices with means for feeding the work-pieces to the grinding tool, e.g. turntables, transfer means
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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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
A lens grinding apparatus (1) with chamfer mechanism for making the grinding surface (4a) be the grinding disc (4) for global lens grinding to rotate by rotation center line (4A) of ball core (o) trough sphere as centre and make nucellus sway, in order that the rotation center line (4A) forms cone using the ball core (o) as acme, thus the lens blank (W) is performed curve grinding. After curve grinding, the lens blank (W1) retreats to unside, the attached chamfering tool (61) of the chamfering institution (60) is positioned on the chamfering position (61A) consistent with rotation center line (4A), and at the same time the grinded lens blank (W1) is pushed against the chamfering tool (61)and rotates to perform chamfering. After chamfering, the chamfering tool (61) goes back to retreating position (61B) non-interferential with grinding disc (4). The invention can continually and expeditiously perform chamfering after chamfering using dish-type grinding wheel.
Description
Technical field
The lens grinding apparatus that the present invention relates to use grinding dish optical spherical lens to be carried out grinding with spherical shape grinding face.In more detail, relate to and have the lens grinding apparatus and the using method thereof of the good lenticular blank of grinding being carried out the chamfer mechanism that chamfer machining uses.
Background technology
As the method for grinding of optical spherical lens, the sphere method for making that is undertaken by cup wheel as you know.This method as shown in Figure 6, to be that the spherical grinding face 104 of the cup wheel 103 of center rotation presses against with axis 100 with axis 102 on one side be that grinding is carried out on one side on the glass blank 101 of the processing object that rotates of center, making with the intersection point of axis 100,102 be the sphere 105 of the centre of sphere.This processing method is a sphere method for making completely, but exists because of curvature distortion that cup wheel 103 wearing and tearing are produced, at the core of the grinding face of glass blank 101 problems such as cutting is residual takes place.
This case applicant has proposed to make the disc type emery wheel in patent documentation 1 be that diamond tool is rotated and the centre of sphere is swung spherical lens is carried out the lens method for grinding of grinding.If adopt lens method for grinding shown here, then can eliminate the problem that takes place in the sphere method for making that cup type emery wheel carries out.The advantage that the lens face mean curvature that is obtained is uneven less is especially also arranged in the grinding of the lens face of deep camber.
On the other hand, as the facing attachment of optical spherical lens, in patent documentation 2, proposed to be attached to the shaped form of having used cup wheel grow up to be a useful person on, carry out the periphery facing attachment of the lens of chamfering simultaneously with the sphere processing of lens.In addition, patent documentation 3 has proposed a kind of like this method: Yi Bian the emery wheel rotation that the chamfering of the convex form of the radius of curvature bigger than the concavees lens radius of curvature of chamfering object is used is carried out chamfer machining Yi Bian its concavees lens with the chamfering object are contacted.
Patent documentation 1: the Japan Patent spy opens the 2003-340702 communique
Patent documentation 2: Japan opens clear 49-28293 communique in fact
Patent documentation 3: the Japan Patent spy opens the 2002-126986 communique
Here, in the grinding of having used cup wheel, as described in patent documentation 2, has the advantage that on shaped form is grown up to be a useful person, can set up the facing attachment of processing simultaneously.Yet, the use that proposes in the patent documentation 1 the lens grinding of disc type emery wheel compare with the sphere method for making that has used cup wheel and have above-mentioned advantage, can not set up the shortcoming of carrying out the facing attachment of chamfering simultaneously but have.
Therefore, in the lens grinding of having used the disc type emery wheel, must carry out the chamfering operation, or dispose independently chamfer processing method and device, for example utilize the method shown in the patent documentation 3 to carry out chamfering with emery wheel rotating shaft by handwork.
Summary of the invention
In view of the above problems, the object of the present invention is to provide and a kind ofly do not use independently chamfer processing method and device, also do not increase rotating shaft just can be proceeded chamfer machining after the grinding of having used the disc type emery wheel the lens grinding apparatus that has chamfer mechanism.
For achieving the above object, the lens grinding apparatus that has chamfer mechanism of the present invention has:
The grinding dish that contains the grinding face of spherical shape;
To this grinding dish support, central axis is configured to the grinding dish main shaft by the state of the described grinding face centre of sphere;
The centre of sphere pendular body that described grinding dish main shaft is supported;
Make described centre of sphere pendular body make the swing mechanism of centre of sphere swing usefulness, so that the central axis of described grinding dish main shaft is rotated on the taper seat that with the described centre of sphere is the summit;
Make the grinding disc spins mechanism of described grinding dish main shaft around central axis rotation usefulness;
Lenticular blank to processing object keeps, central axis is configured to the lens retainer by the state of the described centre of sphere;
This lens retainer is sent the workpiece feed mechanism of usefulness along the described grinding dish of its central shaft alignment;
Make the workpiece rotating mechanism of described lens retainer around its central axis rotation usefulness;
To by described lenticular blank being carried out the chamfer mechanism that lenticular blank that grinding that grinding obtained finishes is carried out chamfering by described grinding dish,
This chamfer mechanism has:
The chamfer tool that contains circular taper grinding face;
Instrument travel mechanism, with described chamfer tool move to its central axis chamfering position consistent with the central axis of described lens retainer, and keep out of the way from this chamfering position after retreating position;
The chamfering feed mechanism that described chamfer tool is relatively moved with respect to described lens retainer to their central axial direction,
When returning the described lens retainer that maintains lenticular blank that described grinding finishes to the direction of leaving described grinding dish, configurable described chamfer tool between lenticular blank that this grinding finishes and described grinding dish.
In the lens grinding apparatus that has chamfer mechanism of this structure, following grinding and chamfer machining of carrying out spherical lens like that.
At first, make described grinding disc spins and do centre of sphere swing, to send with the feed speed of regulation by the lenticular blank that described lens retainer is kept, on the grinding face that is pressed in the described grinding dish of doing rotation and centre of sphere swing, to send with the cutting feed speed of regulation by the described lenticular blank that is pressed on the described grinding dish on one side, on one side this lenticular blank is carried out grinding.
Then, the lenticular blank that will finish by the grinding that grinding obtained of implementing regulation is returned to the direction of leaving described grinding dish.
Then, make described chamfer tool move and be positioned at described chamfering position from described retreating position, the lenticular blank that will finish by the grinding that described lens retainer is kept send and with it by on the described taper grinding face that is pressed in the described chamfer tool that is in described chamfering position, to send with the cutting feed speed of regulation on one side by the described lenticular blank that is pressed on the described chamfer tool, on one side lenticular blank that this grinding is finished carry out the grinding that chamfering is used.
And,, make described chamfer tool keep out of the way described retreating position and get final product from described chamfering position as long as make the lenticular blank of chamfering after the chamfer machining leave described chamfer tool.
In the present invention, while make grinding dish do the centre of sphere swing lenticular blank is carried out grinding, so that the centre of sphere that the rotation centerline of grinding dish forms with the spherical grinding face is the taper seat on summit with spherical grinding face.So, do oscillating motion, but precision is processed the spherical lens face of small curve well by making tool shelf.In addition, do not unload lower peripheral surface and be ground the lenticular blank that the grinding of processing finishes, just can proceed chamfer machining from the lens retainer.In chamfer machining, as long as owing to make the lens retainer rotation that maintains the lenticular blank that grinding finishes, so needn't rotating shaft newly be set for chamfer machining.So, can realize utilizing inexpensive structure to carry out the lens grinding apparatus of chamfer machining efficiently.
Here, in the present invention, it is characterized in that described instrument travel mechanism makes described chamfer tool along mechanism that straight line or curvilinear mobile route move.
Feature is in addition, and described chamfering feed mechanism is the chamfer tool feed mechanism that described workpiece feed mechanism and/or described chamfering workpiece are moved back and forth to the direction of described feeding axis.
In addition, feature of the present invention is, has the Numerical Control portion that the feed motion of the described lens retainer that undertaken by described workpiece feed mechanism is given Numerical Control, this Numerical Control portion is for the position display numerical value of described chamfer tool, and the lenticular blank that will be finished by the described grinding that described lens retainer is kept pushes mobilely to described chamfer tool, controls the size of the face of the lenticular blank that described grinding finishes.
In the lens grinding apparatus that has a chamfer mechanism of the present invention, while making grinding dish do the centre of sphere swing lenticular blank is carried out grinding, so that the centre of sphere that the rotation centerline of grinding dish forms with the spherical grinding face is the taper seat on summit with spherical grinding face.So, by making the tool shelf oscillating motion, but precision is processed the spherical lens face of small curve well.In addition, do not unload and be ground the lenticular blank that the grinding that processes sphere finishes and just can proceed chamfering from the lens retainer.In chamfer machining, as long as owing to make the lens retainer rotation that maintains the lenticular blank that grinding finishes, so needn't reset rotating shaft for chamfer machining.So, can realize carrying out well the lens grinding apparatus of chamfer machining with inexpensive structure efficiency.
Description of drawings
Fig. 1 is that the general configuration figure that has the lens grinding apparatus major part of chamfer mechanism of the present invention has been used in expression.
Fig. 2 is the stereogram of chamfer mechanism of the lens grinding apparatus that has chamfer mechanism of presentation graphs 1.
Fig. 3 is the key diagram that the spherical grinding of the lens grinding apparatus that has chamfer mechanism of presentation graphs 1 is moved.
Fig. 4 is the key diagram that the chamfer machining of the lens grinding apparatus that has chamfer mechanism of presentation graphs 1 is moved.
Fig. 5 is the stereogram of the other example of expression chamfer mechanism.
Fig. 6 is the key diagram that expression utilizes sphere method for making in the past to carry out grinding.
The specific embodiment
With reference to the accompanying drawings, illustrate and used the embodiment that has the lens grinding apparatus of chamfer mechanism of the present invention.
Fig. 1 is the general configuration figure of major part of the lens grinding apparatus that has chamfer mechanism used of optical spherical lens grinding of expression present embodiment.The lens grinding apparatus 1 that has chamfer mechanism has: the lens retainer 3 that the lenticular blank W of processing object is kept usefulness; And grinding dish 4, this grinding dish 4 has the spherical grinding face 4a that the lenticular blank W that is kept by lens retainer 3 is carried out grinding.In addition, set up chamfer mechanism 60 with chamfer tool 61.
Be configured in the cylindraceous vertical inside that keeps tube 9 of upper end closed work spindle 5 coaxial states, be held in rotation state freely by this vertical tube 9 that keeps by pair of bearings 10,11 up and down.In addition, work spindle 5, the vertical centre axis with working-spindle 5 is that lens rotation centerline 5A is that the center is driven in rotation to the rotation of scioptics axle with motor 12.Be connected with cylinder 13 in the vertical upper end of tube 9 that keeps, the inside of the supporting cylinder 14 that is closed on this cylinder 13 is fixed on.The vertical pushing that keeps tube 9 to be subjected to the specified force downwards of cylinder 13.
Here, on the supporting cylinder 14 that supports by 13 pairs of lens main shafts 5 of cylinder, be equipped with being installed in the vertical noncontacting proximity sensor 27 that keeps tube 9 upper end 9a to detect usefulness of carrying cylinder 14 inboards.Usually, this noncontacting proximity sensor 27 is in off-state, and when vertical maintenance tube 9 rose with respect to supporting cylinder 14, this upper end 9a was detected by noncontacting proximity sensor 27, and the output of this sensor switches to on-state.
Then, the grinding dish 4 that is configured in lens retainer 3 belows is configured to: the centre of sphere O of its spherical grinding face 4a is positioned on the extended line of lens rotation centerline 5A (central axis of work spindle 5) of lens retainer 3 sides.Be formed with main shaft 4b at the back side of this grinding dish 4, this main shaft 4b is supported to rotation state freely by centre of sphere pendular body 31.Here, the rotation centerline 4A of grinding dish 4 (central axis of main shaft 4b) at centre of sphere O with acute angle theta and vertically extending lens rotation centerline 5A across by centre of sphere pendular body 31 supporting spindle 4b.
Centre of sphere pendular body 31 has: hemispheric cup part 31a; From the cylindrical portions may 31b that center, the end outer peripheral face part of this glass part 31a is given prominence to the foreign side of radial direction, cylindrical portions may 31b goes up and with coaxial state main shaft 4b is mounted to rotation state freely.In addition, flange 31c just extends sidelong from the bottom of cylindrical portions may 31b, is equipped with the motor 32 that main shaft drives is used herein.
But the cup part 31a of centre of sphere pendular body 31 is supported to the state of centre of sphere swing by the circular inner peripheral surface 33a that is formed at support plate 33.Circular inner peripheral surface 33a is to be the sphere of the centre of sphere with centre of sphere O, and the cup part 31a that puts outer peripheral face 31d on this circular inner peripheral surface 33a and be sphere is that the center can be swung with centre of sphere O.In this example, on circular inner peripheral surface 33a, be formed with compressed air and blow out hole or groove 33b, supply with road 33c by compressed air herein and supply with compressed air.Therefore, cup part 31a is retained from the state of circular inner peripheral surface 33a come-up.So can make centre of sphere pendular body 31 is that successfully swing at the center with centre of sphere O.
The lower end of centre of sphere pendular body 31 is connected with the output shaft of motor 36 by linkage connector 34 and amplitude of fluctuation adjustment unit 35.Centre of sphere pendular body 31 is positioned on the extended line of grinding disc spins center line 4A with the tie point 34a of linkage connector 34, and the rotation centerline 36A of motor 36 is retained the state towards centre of sphere O all the time.In case the adjustment knob 35a to amplitude of fluctuation adjustment unit 35 operates, then the interval of the rotation centerline 36A of tie point 34a and motor 36 changes.So, can adjust the amplitude of fluctuation of the oscillating motion of centre of sphere pendular body 31.
Then, motor 36 is by 37 supportings of angle of oscillation adjustment unit.Angle of oscillation adjustment unit 37 has and is configured in fixing locational arc cam 38, and it is the circular shape at center that this cam 38 is with centre of sphere O.Supporting member 39 is mounted to and can motor 36 be installed herein along the state of these cam 38 slips.Be fixed with nut 40 on supporting member 39, screwing on nut 40 has feed screw 41.The end of feed screw 41 is connected with handle 42.
In case turning handle 42, supporting member 39 just moves along cam 38.That is, the grinding dish main shaft 4b by 31 supportings of centre of sphere pendular body is a center swing ormal weight with centre of sphere O.So, can utilize angle of oscillation adjustment unit 37, the angle θ that the rotation centerline 4A of grinding dish 4 is constituted with respect to vertical lens rotation centerline 5A is that the angle of oscillation center line changes.
Fig. 2 is the partial perspective view of chamfer mechanism 60 parts that expression has the lens grinding apparatus 1 of chamfer mechanism.Describe referring now to Fig. 1 and Fig. 2.The chamfer tool 61 of this routine chamfer mechanism 60 is the diamond tools with circular grinding face 61a of the taper that expansion upward opens, and its central axis 61b and lens rotation centerline 5A are fixed on the leading section of arm tool 62 abreast.The rearward end of arm tool 62 is fixed on the vertical rotating shaft 63, and this vertical rotating shaft 63 is supported to rotation state freely by bearing 64 by support unit 65.Vertical rotating shaft 63 is driven by rotary actuator 66 rotations that are installed in support unit 65 upper surfaces.
When making vertical rotating shaft 63 rotations by rotary actuator 66, horizontally extending from here arm tool 62 is just turned round to horizontal direction, just can make the chamfer tool 61 that is installed on arm tool 62 front ends to moving with upper/lower positions, that is: the central axis 61b of the chamfer tool 61 chamfering position 61A consistent with lens rotation centerline 5A and from this chamfering position 61A to the retreating position 61B that laterally keeps out of the way.Be at chamfer tool 61 under the state of retreating position 61B, this chamfer tool 61 just not can with lens retainer of sending downwards 3 and the lenticular blank W interference that is kept thereof.
In addition, support unit 65 is bearing on the lift slide block 67, and lift slide block 67 can carry out lifting along the vertical guide rail 68 that is fixed on the not shown device pallet, and makes 67 liftings of lift slide block by cylinder 69.When driving cylinder 69 made 67 liftings of lift slide block, the support unit 65 that is installed on the lift slide block 67 carried out lifting.So, also carry out lifting from the vertical rotating shaft 63 that is supported by support unit 65 to horizontally extending arm tool 62, be installed in the chamfering also lifting of instrument 61 on these arm tool 62 front ends.
Then, in this example, the controller 50 that the driving of above-mentioned each several part control is used by Numerical Control carries out.Input unit 51 is connected with controller 50, specify numerical value by input, the amount of feeding in the time of just can determining the chamfer machining of the lenticular blank W1 that the amount of feeding, cutting output of the lenticular blank W that kept by lens retainer 3, the grinding that obtains by spherical grinding finish and chamfering amount etc.In addition, by input unit 51,, just can carry out the action that lenticular blank W etc. is sent by manual operation.
(spherical grinding processing)
The spherical grinding action of the lens grinding apparatus that has chamfer mechanism 1 of this example is described with reference to Fig. 3.At first, lenticular blank W absorption is remained on the lens retainer 3.Then,, drive servomotor 25 by manual operation, with lenticular blank W to grinding dish 4 feeding gently.When lenticular blank W with after grinding dish 4 contacts, the decline of work spindle 5 stops.Then, by feeding gently, horizontal arm 21 (workpiece feeding platform) is descended.Its result, work spindle 5 and rotation are risen with respect to horizontal arm 21 to vertical the maintenances tube 9 of its supporting freely, and 27 pairs of noncontacting proximity sensors are vertical to keep upper end 9a of tins 9 to detect and switch to on-state.
After having confirmed that non-detection formula sensor 27 switches to on-state, temporary transient feed-disabling.Then, the feed speed of servomotor 25 is set as Ultra-Low Speed, horizontal arm 21 is risen.When horizontal arm 21 rose, the work spindle 5 that is stopping just to descend with respect to noncontacting proximity sensor 27 with vertical maintenance tube 9.Its result, the upper end 9a of vertical maintenance tube leaves the detection position of noncontacting proximity sensor 27, and noncontacting proximity sensor 27 turns back to off-state again.Controller 50 saves as the processing starting position with this position that switches to the moment of off-state.
After arriving the processing starting position, speed is switched to the 1st cutting speed, carry out grinding while send lenticular blank W with this speed.State when Fig. 3 (a) expression grinding begins.
With the 1st cutting output cutting lenticular blank W, after reaching the 1st cutting position, promptly reach the cutting state shown in Fig. 3 (b) after, centre of sphere pendular body 31 begins swing, sends lenticular blank W limit with the fine finishining speed limit slower than the 1st cutting speed and cuts.Its result, lenticular blank W is cut, and obtains to be formed with the lenticular blank W1 that the grinding of spherical lens face Wa finishes as Fig. 3 (c).
If confirm to have arrived the process finishing position, then after stopping the swing that centre of sphere pendular body 31 carried out, horizontal arm 21 is turned back to the top, stop the rotation of grinding dish 4.
(chamfer machining)
Here, above horizontal arm 21 is turned back to, the lenticular blank W1 that the grinding that is kept by the lens retainer 3 of its lower end finishes with its below grinding dish 4 between, guaranteeing can be from the interval of laterally inserted chamfer tool 61.And the rotation of work spindle 5 is set as the state that maintains 3000rpm from 2000rpm.That is, the lenticular blank W1 that grinding is finished remains on the state that is rotated at 3000rpm from 2000rpm.
Then, drive the rotary actuator 66 of chamfer mechanism 60, make arm tool 62 revolutions, and make the chamfer tool 61 that is installed on its front end move to chamfering position 61A, be positioned on the 61A of this chamfering position from retreating position 61B.Under this state, the central axis 61b of chamfer tool 61 is consistent with lens pivot axis 5A.Fig. 4 represents this state.
After with chamfer tool 61 location, drive workpiece feed mechanism 20, the lenticular blank W1 that grinding is finished sends downwards, and presses against on the circular grinding face 61a of chamfer tool 61, the beginning chamfer machining.In chamfer machining, fixed-site with the above-below direction of chamfer tool 61, the numerical value instruction that is used to self-controller 50 determines to be maintained at the amount of feeding of the lenticular blank W1 that the grinding on the work spindle 5 finishes, carries out the feeding of the lenticular blank W1 that grinding finishes with the feed speed of regulation.So, instruct the chamfering amount of controlling by the numerical value that comes self-controller 50.
After chamfer machining finishes, utilize workpiece feed mechanism 20 to make the chamfering lenticular blank keep out of the way the top.Then, drive the rotary actuator 66 of chamfer mechanism 60, chamfer tool 61 is moved to retreating position 61B from chamfering position 61A, turn back to this retreating position 61B.
So, in the lens grinding apparatus that has chamfer mechanism 1 of this example, after spherical grinding processing, can continue the lenticular blank W1 that the grinding that the lens retainer 3 by work spindle 5 is kept finishes is carried out chamfer machining.Therefore, to carry out the occasion of chamfering inequality with unload lenticular blank W1 that the lenticular blank W1 that grinding finishes and the rotating shaft that is installed in facing attachment carry out the occasion of chamfer machining or utilize manual working that the grinding of unloading from lens retainer 3 is finished from lens retainer 3 after spherical grinding, can carry out chamfer machining expeditiously.In addition, compare, can constitute the chamfer mechanism of inexpensive structure with the occasion that facing attachment independently is set or in the occasion that the rotating shaft that chamfer machining uses is set except work spindle.
(other examples of chamfer mechanism)
Fig. 5 is the stereogram of the other example of expression chamfer mechanism 60.Chamfer mechanism 60A shown in this figure is a slidingtype, makes chamfer tool 61 move to chamfering position 61A and retreating position 61B along the straight line mobile route.That is, the chamfer tool 61 of chamfer mechanism 60A, being supported in can be along guide rail 71 on the slide block 72 that horizontal direction moves as linear reciprocation.Slide block 72 is driven by the straight-moving mechanism of not shown cylinder etc.Part in addition is identical with the example shown in Fig. 1,2, so put on identical symbol for corresponding part, omits the explanation to them.
In addition, move to the travel mechanism of chamfering position 61A and retreating position 61B as the chamfer tool 61 that is used for making chamfer mechanism 60, arm-type except the revolution of moving along circular-arc track as described above, along the slidingtype that the linearity track moves, can adopt various travel mechanisms.
Claims (5)
1. lens grinding apparatus that has chamfer mechanism is characterized in that having:
The grinding dish that contains the grinding face of spherical shape;
This grinding dish is supported, is configured to the grinding dish main shaft of central axis by the state of the described grinding face centre of sphere;
The centre of sphere pendular body that described grinding dish main shaft is supported;
So that the central axis of described grinding dish main shaft is being that the state that is rotated on the taper seat on summit makes described centre of sphere pendular body make the swing mechanism of centre of sphere swing usefulness with the described centre of sphere;
Make the grinding disc spins mechanism of described grinding dish main shaft around central axis rotation usefulness;
Lenticular blank as processing object is kept, is configured to the lens retainer of central axis by the state of the described centre of sphere;
This lens retainer is sent the workpiece feed mechanism of usefulness along the described grinding dish of its central shaft alignment;
Make the workpiece rotating mechanism of described lens retainer around its central axis rotation usefulness;
To described lenticular blank being carried out the chamfer mechanism that lenticular blank that grinding that grinding obtains finishes is carried out chamfering by described grinding dish,
This chamfer mechanism has:
The chamfer tool that contains circular taper grinding face;
With described chamfer tool move to its central axis chamfering position consistent with the central axis of described lens retainer, and keep out of the way from this chamfering position after the instrument travel mechanism of retreating position;
The chamfering feed mechanism that described chamfer tool is relatively moved with respect to described lens retainer to their central axial direction,
When the described lens retainer that maintains the lenticular blank that described grinding finishes is returned along the direction of leaving described grinding dish, configurable described chamfer tool between lenticular blank that this grinding finishes and described grinding dish.
2. the lens grinding apparatus that has chamfer mechanism as claimed in claim 1 is characterized in that, described instrument travel mechanism is the mechanism that described chamfer tool is moved along linearity or curvilinear mobile route.
3. the lens grinding apparatus that has chamfer mechanism as claimed in claim 1, it is characterized in that described chamfering feed mechanism is the chamfer tool feed mechanism that described workpiece feed mechanism and/or described chamfer tool are moved back and forth to the direction of described feeding axis.
4. the lens grinding apparatus that has chamfer mechanism as claimed in claim 1 is characterized in that, has the Numerical Control portion that the feed motion of the described lens retainer that undertaken by described workpiece feed mechanism is carried out Numerical Control,
Control lenticular blank that described grinding finishes the amount of feeding by this Numerical Control portion, and determine the size of the face of the lenticular blank that described grinding finishes with respect to described chamfer tool.
5. a using method that has the lens grinding apparatus of chamfer mechanism is used each described lens grinding apparatus that has chamfer mechanism in the claim 1 to 4, it is characterized in that,
Make described grinding disc spins and do centre of sphere swing,
Feed speed with regulation will be sent by the lenticular blank that described lens retainer is kept, and press against on the grinding face of the described grinding dish of doing rotation and centre of sphere swing,
The described lenticular blank that will press against on the described grinding dish with the cutting feed speed of stipulating is sent on one side, on one side this lenticular blank is carried out grinding,
The lenticular blank that the grinding that obtains of grinding by regulation is finished is returned along the direction of leaving described grinding dish,
Make described chamfer tool move and be positioned at described chamfering position from described retreating position,
The lenticular blank that will be finished by the described grinding that described lens retainer is kept is sent and is pressed against on the described taper grinding face of the described chamfer tool that is in described chamfering position,
To press against the lenticular blank that the described grinding on the described chamfer tool finishes with the cutting feed speed of regulation and send, and the lenticular blank that this grinding finishes will be carried out the grinding that chamfering is used,
The lenticular blank that described grinding through chamfer machining is finished is left described chamfer tool,
Then, make described chamfer tool keep out of the way described retreating position from described chamfering position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006080832A JP4350101B2 (en) | 2006-03-23 | 2006-03-23 | Lens grinding device with chamfering mechanism |
| JP2006080832 | 2006-03-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101041229A true CN101041229A (en) | 2007-09-26 |
| CN100515674C CN100515674C (en) | 2009-07-22 |
Family
ID=38628016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100840620A Expired - Fee Related CN100515674C (en) | 2006-03-23 | 2006-05-19 | Lens grinding apparatus with chamfer mechanism |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4350101B2 (en) |
| KR (1) | KR100803692B1 (en) |
| CN (1) | CN100515674C (en) |
| TW (1) | TW200735999A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240989A (en) * | 2010-05-13 | 2011-11-16 | 株式会社春近精密 | Diamond disc type grinding stone and grinding method of spherical lens |
| CN103331672B (en) * | 2013-06-24 | 2015-09-09 | 满城县永红铸造机械有限公司 | Automatic grinding machine people |
| CN105666308A (en) * | 2014-11-17 | 2016-06-15 | 中国航空工业第六八研究所 | Reflector annular notch chamfer grinding device and grinding method thereof |
| CN105773344A (en) * | 2016-03-24 | 2016-07-20 | 淮安市岽盛光电仪器有限公司 | Spherical surface ring polishing machine |
| CN109079626A (en) * | 2018-09-26 | 2018-12-25 | 苏州捷斯芬化妆用品有限公司 | A kind of powder puff grinding attachment |
| CN111843770A (en) * | 2020-07-30 | 2020-10-30 | 陈飞 | Glass production surface refining treatment system and method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106584236A (en) * | 2017-01-22 | 2017-04-26 | 福州紫凤光电科技有限公司 | Chamfering device of optical wafer |
| CN108161622B (en) * | 2018-01-10 | 2024-03-19 | 新兴河北工程技术有限公司 | Automatic chamfering and end face grinding device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02109671A (en) * | 1988-10-20 | 1990-04-23 | Olympus Optical Co Ltd | Lens grinding machine and lens working method |
| JPH02284874A (en) * | 1989-04-22 | 1990-11-22 | Olympus Optical Co Ltd | Grinding stone |
| JP2002126986A (en) | 2000-10-18 | 2002-05-08 | Canon Inc | Lens machining method |
| JP2002283203A (en) | 2001-03-26 | 2002-10-03 | Canon Inc | Rough cutting combined grinding wheel co-used for chamfering processing and processing method of optical element |
| JP2003340702A (en) | 2002-05-21 | 2003-12-02 | Haruchika Seimitsu:Kk | Diamond tool plate oscillation rotation-type lens polishing method and its device |
-
2006
- 2006-03-23 JP JP2006080832A patent/JP4350101B2/en not_active Expired - Fee Related
- 2006-04-20 TW TW095114136A patent/TW200735999A/en not_active IP Right Cessation
- 2006-05-02 KR KR1020060039416A patent/KR100803692B1/en not_active IP Right Cessation
- 2006-05-19 CN CNB2006100840620A patent/CN100515674C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240989A (en) * | 2010-05-13 | 2011-11-16 | 株式会社春近精密 | Diamond disc type grinding stone and grinding method of spherical lens |
| CN103331672B (en) * | 2013-06-24 | 2015-09-09 | 满城县永红铸造机械有限公司 | Automatic grinding machine people |
| CN105666308A (en) * | 2014-11-17 | 2016-06-15 | 中国航空工业第六八研究所 | Reflector annular notch chamfer grinding device and grinding method thereof |
| CN105666308B (en) * | 2014-11-17 | 2018-01-16 | 中国航空工业第六一八研究所 | A kind of speculum annular groove mouth chamfer grinding device and its Ginding process |
| CN105773344A (en) * | 2016-03-24 | 2016-07-20 | 淮安市岽盛光电仪器有限公司 | Spherical surface ring polishing machine |
| CN109079626A (en) * | 2018-09-26 | 2018-12-25 | 苏州捷斯芬化妆用品有限公司 | A kind of powder puff grinding attachment |
| CN111843770A (en) * | 2020-07-30 | 2020-10-30 | 陈飞 | Glass production surface refining treatment system and method |
| CN111843770B (en) * | 2020-07-30 | 2021-12-17 | 佛山市金耀华玻璃新材有限公司 | Glass production surface refining treatment system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070096720A (en) | 2007-10-02 |
| JP2007253279A (en) | 2007-10-04 |
| CN100515674C (en) | 2009-07-22 |
| TW200735999A (en) | 2007-10-01 |
| KR100803692B1 (en) | 2008-02-20 |
| JP4350101B2 (en) | 2009-10-21 |
| TWI295218B (en) | 2008-04-01 |
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