CN105228795A - Lens holding apparatus - Google Patents
Lens holding apparatus Download PDFInfo
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- CN105228795A CN105228795A CN201480026765.0A CN201480026765A CN105228795A CN 105228795 A CN105228795 A CN 105228795A CN 201480026765 A CN201480026765 A CN 201480026765A CN 105228795 A CN105228795 A CN 105228795A
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- Prior art keywords
- head
- sleeve
- lens holding
- holding apparatus
- workpiece
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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
- B24B13/005—Blocking means, chucks or the like; Alignment devices
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- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The lens holding apparatus that reliably can maintain the absorption affinity for workpiece is provided.Lens holding apparatus (100) has head (120) and supports the sleeve (110) of this head (120) in the mode that can rotate, sleeve (110) has the axle portion (111) being provided with exhaust line (115) in inside, be arranged to the protuberance (112) given prominence to outer peripheral side, be arranged on the seal member (113) on protuberance (112), and be arranged on the support (114) of front end in axle portion (111), workpiece receiving portion (124) is provided with in head (120), the inner space (125) of storage protuberance (112), make the opening (126) of the ft connection of inner space (125) and head (120), make the SS (128) that inner space (125) is communicated with workpiece receiving portion (124), and the front end receiving portion (129) that support (114) can be supplied to abut.
Description
Technical field
The present invention relates to the lens holding apparatus keeping lens in the grinding or attrition process of lens.
Background technology
By lens grinding or when grinding to form dome shape, usually use the lens holding apparatus keeping lens (workpiece) in the mode that can rotate.Such as Patent Document 1 discloses following workpiece holding frame: by the retainer of holding workpieces can rotate and the mode bearing sleeve that can fascinate, and the vacuum suction of workpiece can be carried out.
In patent document 1, make the retainer bearing sleeve of holding workpiece, and, form air in the inside of sleeve and import road, groove portion is formed in the periphery of sleeve, the barrier film of mounting circular ring shape in this groove portion, on the other hand, retainer forms the space (chamber of septum) (Fig. 1 with reference to patent document 1) of the ring-type of this barrier film of storage.Add man-hour at workpiece, make retainer holding workpiece, make the grinding in the spherical shape expected or milling tool (hereinafter referred to as machining tool) abut with workpiece and this machining tool is rotated.Thus, workpiece and retainer follow the motion of machining tool and rotate, and can carry out grinding or grinding under the state making workpiece and machining tool fit tightly to this workpiece.Further, when the conveying of workpiece, when importing road to when (control room) is exhausted in retainer via air, barrier film is sucked and fits tightly with the lower surface of chamber of septum.Its result, control room becomes vacuum state, via pump orifice by absorption of workpieces on retainer.
Prior art document
Patent document
Patent document 1: Japanese Unexamined Patent Publication 7-205004 publication
Summary of the invention
The problem that invention will solve
But, in above-mentioned patent document 1, due to the Existential Space up and down at barrier film, so, larger to suction loss when being exhausted in control room.Further, because the chimeric amplitude of the groove Yu barrier film that are arranged on the periphery of sleeve is less, so seal is lower.Therefore, exist and be difficult to maintain the problem for the absorption affinity of workpiece when conveying workpieces.
The present invention completes in view of the foregoing, its object is to, and provides the lens holding apparatus that reliably can maintain the absorption affinity for workpiece.
For solving the means of problem
In order to solve above-mentioned problem and realize object, the feature of lens holding apparatus of the present invention is, this lens holding apparatus has maintenance as the head of the optics of processing object and the sleeve supporting this head in the mode that can rotate, and described sleeve has: the axle portion being provided with exhaust line in inside; Be arranged to the protuberance given prominence to outer peripheral side relative to described axle portion; Be arranged on the seal member on described protuberance; And be arranged on the front end in described axle portion and the support in a spherical part, be provided with in described head: the workpiece receiving portion keeping described optics; Receive the inner space of described protuberance; Make the opening of the ft connection of described inner space and this head, the diameter that this opening has is greater than the diameter in described axle portion and is less than the external diameter of described protuberance; Make the SS that described inner space is communicated with described workpiece receiving portion; And the front end receiving portion that can abut for described support.
In said lens holder, it is characterized in that, when by described in described sleeve hanging holding when head, described seal member abuts with the internal face of described head, and described opening is sealed.
In said lens holder, it is characterized in that, from the edge of described opening towards outer circumferential side, described internal face is more close to the bottom surface of described inner space.
In said lens holder, it is characterized in that, described internal face is spherical zone shape.
In said lens holder, it is characterized in that, described internal face is the shape of the side of the frustum of a cone.
In said lens holder, it is characterized in that, be configured with described seal member as follows: when to abut with described front end receiving portion when making described support and make the central shaft of the central shaft of described sleeve and described head consistent, cause the center of vertical line through the cross section of described seal member of described internal face from the centre of sphere of described support.
Invention effect
According to the present invention, the protuberance of the sleeve received in the inner space of head arranges seal member, and make the opening footpath of inner space be less than the external diameter of protuberance, so, can be sealed opening by seal member from the inner side of inner space, reliably can maintain the absorption affinity for workpiece.
Accompanying drawing explanation
Fig. 1 is the longitudinal section of the structure of the lens holding apparatus that embodiments of the present invention 1 are shown.
Fig. 2 is the longitudinal section (upward the state of pull-up sleeve) of the structure of the lens holding apparatus that embodiments of the present invention 1 are shown.
Fig. 3 is the longitudinal section of the structure of the lens holding apparatus that embodiments of the present invention 2 are shown.
Fig. 4 is the longitudinal section (upward the state of pull-up sleeve) of the structure of the lens holding apparatus that embodiments of the present invention 2 are shown.
Fig. 5 is the longitudinal section of the structure of the lens holding apparatus that embodiments of the present invention 3 are shown.
Fig. 6 is the longitudinal section (upward the state of pull-up sleeve) of the structure of the lens holding apparatus that embodiments of the present invention 3 are shown.
Fig. 7 is the longitudinal section that the state producing axle offset in the lens holding apparatus shown in Fig. 5 is shown.
Fig. 8 is the longitudinal section of the state that pull-up sleeve upward in the lens holding apparatus shown in Fig. 7 is shown.
Fig. 9 A is the longitudinal section of the determining method of the diameter of the opening of head for illustration of the lens holding apparatus shown in Fig. 5.
Fig. 9 B is the top view of the determining method of the diameter of the opening of head for illustration of the lens holding apparatus shown in Fig. 5.
Figure 10 is the longitudinal section of the determining method of the diameter of seal member for illustration of the lens holding apparatus shown in Fig. 5.
Figure 11 is the longitudinal section of the determining method of the height of seal member for illustration of the lens holding apparatus shown in Fig. 5.
Figure 12 is the longitudinal section of the determining method of the height of sleeve fulcrum for illustration of the lens holding apparatus shown in Fig. 5.
Figure 13 is the longitudinal section for illustration of the lens making methods using the lens holding apparatus shown in Fig. 5.
Detailed description of the invention
Below, with reference to accompanying drawing, embodiments of the present invention are described.In addition, the present invention can't help these embodiments limit.Further, in the record of each accompanying drawing, identical label is marked to same section and represents.Accompanying drawing is schematic, and the relation needing to pay attention to the size in each portion is different from reality with ratio.At accompanying drawing each other, the part that the relation of size is each other different with ratio is also comprised.
(embodiment 1)
Fig. 1 and Fig. 2 is the longitudinal section of the structure of the lens holding apparatus that embodiments of the present invention 1 are shown.As shown in Figure 1, the lens holding apparatus 100 of embodiment 1 is following utensil: when making lens from optics, optics (workpiece) 1 as processing object is abutted with the machining tool 130 carrying out rotating, this workpiece 1 is kept in the mode making workpiece 1 can carry out driven rotation, and, can adsorb holding workpiece 1 before processing to carry, this lens holding apparatus 100 has the head 120 of holding workpiece 1 and supports the sleeve 110 of this head 120 in the mode that can rotate.Here, machining tool 130 is the instruments with grinding wheel spindle 131 and emery wheel 132, this emery wheel 132 is formed with the machined surface 133 in the shape (such as convex spherical shape) corresponding with the spherical shape (such as concave spherical surface shape) of the editing objective of workpiece 1, and this machining tool 130 is arranged on not shown equipment for processing lens in the mode rotated around central shaft A13.
The axle portion 111 that sleeve 110 has cylindrical metal or alloy, the protuberance 112 being arranged to give prominence to outer peripheral side relative to this axle portion 111, be arranged on the seal member 113 on this protuberance 112 and be arranged on the support 114 of front end in axle portion 111.In embodiment 1, if axle A11 centered by the rotation axes of symmetry in axle portion 111.
The exhaust line 115 extended along central shaft A11 is formed in axle portion 111.The upper surface opening of one end in axle portion 111 of exhaust line 115.In this side, upper surface, exhaust line 115 is connected with not shown vacuum suction apparatus.Further, exhaust line 115 is branch near protuberance 112, at the multiple positions opening than protuberance 112 side, axle portion 111 more on the lower.In addition, in embodiment 1, make exhaust line 115 at 2 position openings of side, axle portion 111, but, also can position opening more than 3.Further, also can not make exhaust line 115 branch, only make it bending and 1 position opening in side, axle portion 111.
Protuberance 112, in being provided with the discoid of otch 116, is fixed with seal member 113 in this otch 116.The rounded ring-type in cross section of seal member 113, such as, formed by the elastomeric material of silicone rubber (SR), acrylonitrile-butadiene rubber (NBR), neoprene (CR), ethylene propylene rubber (EPDM), butadiene-styrene rubber (SBR), fluorubber (FKM), buttress rubber (IIR).In addition, in embodiment 1, form protuberance 112 with axle portion 111, but, also can split form protuberance 112 and axle portion 111 and make their fit respectively.In this situation, protuberance 112 and seal member 113 can be formed by above-mentioned elastomeric material, also can be formed by hard materials such as acetal resin (registration mark) or Teflons (registration mark).
The shape of the part of support 114 in ball.Add man-hour what carry out workpiece 1, as shown in Figure 1, configure sleeve 110 in the mode making the land portions of support 114 abut with the assigned position of head 120.
Head 120, in using the drum of central shaft A12 as rotation axes of symmetry, is made up of the head main body bottom 121 mutually screwed togather by threaded portion 123 and head main body top 122.In the end of the side, head main body bottom 121 of head 120, centered by central shaft A12, be formed with region and the workpiece receiving portion 124 of the concavity of holding workpiece 1.Further, the SS 128 that aftermentioned inner space 125 is communicated with workpiece receiving portion 124 is formed in head main body bottom 121.
In addition, add man-hour what carry out workpiece 1, pasting pad material 2 in workpiece receiving portion 124, makes workpiece 1 abut with workpiece receiving portion 124 across gasket material 2 in advance.Gasket material 2 is by the higher resin material of the coefficient of frictions such as silicone rubber, the surface of the base material be made up of resins such as polyester is implemented to anti-skidding processing or bond processing and the parts of sheet that the material that obtains is formed, aims at the position of SS 128 and is pre-formed with opening.
Being formed at head 120 can the inner space 125 of the such size of protuberance 112 of containing sleeve 110.Further, in the end of the side, head main body top 122 of head 120, centered by central shaft A12, the opening 126 of the ft connection making inner space 125 and this head 120 is formed.The diameter of this opening 126 is greater than the diameter in axle portion 111 and is less than the external diameter of protuberance 112.Internal face 127 around opening 126 becomes identical with the face comprising opening 126 plane.
The front end receiving portion 129 of the support 114 keeping sleeve 110 is formed in the bottom of inner space 125.Front end receiving portion 129 is in sphere center position with radius of curvature and the roughly equal concave spherical surface shape of support 114.By making support 114 abut with front end receiving portion 129, with the mode support head 120 that can fascinate relative to sleeve 110 and rotate.Below, the sphere center position of front end receiving portion 129 is called sleeve fulcrum Q1.
As mentioned above, the diameter due to protuberance 112 is greater than the diameter of opening 126, so as shown in Figure 2, when the axle portion 111 of pull-up sleeve 110 upward, head 120 is by hanging holding.Thus, seal member 113 abuts with the internal face 127 of the surrounding of opening 126, seals this opening 126.Under this state, by making the vacuum suction apparatus be connected with exhaust line 115 carry out work, inner space 125 is depressurized, and can adsorb the workpiece 1 keeping being configured in workpiece receiving portion 124.
As described above, according to embodiment 1, sleeve 110 arranges the protuberance 112 that can be accommodated in the inner space 125 of head 120, when by sleeve 110 hanging holding head 120, lens holding apparatus 100 is formed in the mode that seal member 113 internal volume 125 by being arranged on protuberance 112 carries out sealing, so, the seal of inner space 125 can be guaranteed.Therefore, by being exhausted via exhaust line 115 internal volume 125, fully can reduce pressure by internal volume 125, when carrying out conveying etc., also reliably can maintain the absorption affinity for workpiece 1 in scioptics holder 100 holding workpiece 1.
(embodiment 2)
Then, embodiments of the present invention 2 are described.
Fig. 3 and Fig. 4 is the longitudinal section of the structure of the lens holding apparatus that embodiments of the present invention 2 are shown.As shown in Figure 3 and Figure 4, the lens holding apparatus 200 of embodiment 2 has the head 220 of holding workpiece 1 and supports the sleeve 210 of this head 220 in the mode that can fascinate and rotate.
Same with embodiment 1 (with reference to Fig. 1), sleeve 210 has the axle portion 111 being formed with exhaust line 115 in inside and being provided with support 114 in front end, the seal member 213 be arranged in the protuberance 211 given prominence to outer peripheral side relative to this axle portion 111 and the otch 212 being configured in this protuberance 211.The 26S Proteasome Structure and Function in these each portions is identical with embodiment 1, and the size of protuberance 211 and seal member 213 is different from embodiment 1 according to the shape of the inner space 224 of head 220.In embodiment 2, if axle A21 centered by the rotation axes of symmetry in axle portion 111.
Same with embodiment 1 (with reference to Fig. 1), head 220 is using the drum of central shaft A22 as rotation axes of symmetry, be made up of the head main body bottom 221 mutually screwed togather by threaded portion 223 and head main body top 222, be formed with the inner space 224 of the such size of the protuberance 211 can receiving sleeve 210 in inside.Further, workpiece receiving portion 124, SS 128, front end receiving portion 129 is formed with in head main body bottom 221.On the other hand, the opening 225 of the ft connection making inner space 224 and head 220 is formed on head main body top 222.The diameter of this opening 225 is greater than the diameter in axle portion 111 and is less than the external diameter of protuberance 213.The 26S Proteasome Structure and Function in these each portions is identical with embodiment 1, and the shape upward for the internal face 226 of seal member 213 abutting during pull-up sleeve 210 is different from embodiment 1.
Internal face 226 is in the shape of the side of the frustum of a cone centered by central shaft A22, from the edge of opening 225 towards outer circumferential side, highly lower.That is, towards outer circumferential side, internal face 224 is more close to the bottom surface of inner space 324.As shown in Figure 3, the angle of the inclination of internal face 226 can be made to become as lower angle: when the central shaft A22 of the central shaft A21 with head 220 that make sleeve 210 consistent state lower support head 220, the line through the center O in the cross section of sleeve fulcrum Q1 and seal member 213 is orthogonal with internal face 226.Say on the contrary, also can determine diameter and the height of protuberance 213 and seal member 214, make the center O of vertical line through seal member 213 causing internal face 226 from sleeve fulcrum Q1.
In this lens holding apparatus 200, as shown in Figure 4, when pull-up sleeve 210 upward, seal member 213 abuts with internal face 226 and seals opening 225.Under this state, by making the vacuum suction apparatus be connected with exhaust line 115 carry out work, inner space 224 is depressurized, and can adsorb the workpiece 1 keeping being configured in workpiece receiving portion 124.
And, in embodiment 2, tilt owing to making internal face 226, so, even if under the state that sleeve 210 tilts a little relative to head 220 upward pull-up sleeve 210 when, also the entirety of seal member 213 can be made to abut with internal face 226, fully can guarantee the seal of inner space 224.
(embodiment 3)
Then, embodiments of the present invention 3 are described.
Fig. 5 and Fig. 6 is the longitudinal section of the structure of the lens holding apparatus that embodiments of the present invention 3 are shown.As shown in Figure 5 and Figure 6, the lens holding apparatus 300 of embodiment 3 has the head 320 of holding workpiece 1 and supports the sleeve 310 of this head 320 in the mode that can fascinate and rotate.
Same with embodiment 1 (with reference to Fig. 1), sleeve 310 has the axle portion 111 being formed with exhaust line 115 in inside and being provided with support 114 in front end, the seal member 313 be arranged in the protuberance 311 given prominence to outer peripheral side relative to this axle portion 111 and the otch 312 being configured in this protuberance 311.The 26S Proteasome Structure and Function in these each portions is identical with embodiment 1, and the size of protuberance 311 and seal member 313 decides this according to the shape of the inner space 324 of head 320 and puts different from embodiment 1.In embodiment 3, if axle A31 centered by the rotation axes of symmetry in axle portion 111.
Same with embodiment 1 (with reference to Fig. 1), head 320 is using the drum of central shaft A32 as rotation axes of symmetry, be made up of the head main body bottom 321 mutually screwed togather by threaded portion 323 and head main body top 322, be formed with the inner space 324 of the such size of the protuberance 311 can receiving sleeve 310 in inside.Further, workpiece receiving portion 124, SS 128, front end receiving portion 129 is formed with in head main body bottom 321.On the other hand, the opening 325 of the ft connection making inner space 324 and head 320 is formed on head main body top 322.The diameter of this opening 325 is greater than the diameter in axle portion 111 and is less than the external diameter of protuberance 313.The 26S Proteasome Structure and Function in these each portions is identical with embodiment 1, and the shape upward for the internal face 326 of seal member 313 abutting during pull-up sleeve 310 is different from embodiment 1.
Internal face 326 is in the spherical zone shape centered by central shaft A32, from the edge of opening 325 towards outer circumferential side, highly lower.That is, towards outer circumferential side, internal face 326 is more close to the bottom surface of inner space 324.Here, spherical zone shape refers to the shape of a part for the sphere clamped by these planes when the plane cutting sphere of 2 by being parallel to each other.
In this lens holding apparatus 300, as shown in Figure 6, when pull-up sleeve 310 upward, seal member 313 abuts with internal face 326 and opening 325 is sealed.Under this state, by making the vacuum suction apparatus be connected with exhaust line 115 carry out work, inner space 324 is depressurized, and can adsorb the workpiece 1 keeping being configured in workpiece receiving portion 124.
Add man-hour what carry out workpiece 1, as shown in Figure 5, to make the central shaft A31 of sleeve 310 through the mode of the centre of sphere Q2 of the machined surface 133 of machining tool 130, have adjusted sleeve 310 and 320 position and towards after start to process.But as shown in Figure 7, in during the processing carrying out workpiece 1, workpiece 1 is driven in the rotation of machining tool 130, the central shaft A31 of sleeve 310 offsets (hereinafter referred to axle offset) from the centre of sphere Q2 of machined surface 133 sometimes.In this case, as shown in Figure 8, when after process finishing to top pull-up sleeve 310 time, become the state of hanging holding head 320 under the state tilted relative to sleeve 310 at head 320.But, in present embodiment 3, owing to setting the shape of the internal face 326 abutted for seal member 313 as spherical shape, so, have nothing to do with the inclination of head 320, the entirety of seal member 313 and internal face 326 can be made to fit tightly, the seal of inner space 324 can be guaranteed.
Then, the determining method of the size in each portion of lens holding apparatus 300 is described.
First, be described with reference to the determining method of Fig. 9 A and Fig. 9 B to the diameter D of the opening 325 of head 320.Fig. 9 A is the longitudinal section of lens holding apparatus 300 when producing axle offset, and Fig. 9 B is the top view that this lens holding apparatus 300 is observed in the direction (arrow with reference to Fig. 9 A) of central shaft A32 from head 320.Below, if inclination angle now (connecting angle formed by the line of centre of sphere Q2 and sleeve fulcrum Q1 and central shaft A31) be θ, axle offset amplitude (distance between the position A31 ' of central shaft A31 and this central shaft when not producing axle offset) is now S.
When the amplitude setting the diameter of the sleeve 310 in opening surface (face orthogonal with central shaft A32) as E, sleeve 310 (the central shaft A32 in opening surface and the interval of central shaft A31) is for B, if when tiltangleθ is maximum, the diameter D of opening 325 meets following formula (1), then can avoid the interference of sleeve 310 and head 320.
D>2(B+E/2)…(1)
When considering the gap w of head 320 with sleeve 310
1time, formula (1) can be rewritten like that as shown in the formula (1 ').Gap w
1be arbitrarily on the occasion of.
D＝2(B+E/2+w
1)＝2B+E+2w
1…(1’)
Here, the diameter C of sleeve 310 is provided by C=Ecos θ.And, use from centre of sphere Q2 to the distance M of sleeve fulcrum Q1, provided height (by projecting to the length of the position A31 ' of central shaft when not producing axle offset to the length of sleeve fulcrum Q1 from the centre of sphere Q2) F of sleeve fulcrum Q1 when sleeve 310 tilts by F=Mcos θ.Thus, the such relation of E=CM/F is derived.
On the other hand, distance M pushes up the distance H of sleeve fulcrum Q1 and the radius of curvature R sum (M=H+R) of machined surface 133 from the face of workpiece 1.Therefore, the height F of sleeve fulcrum Q1 during inclination can be expressed as F=√ (M by service range M and axle offset amplitude S
2-S
2).In addition, the computational methods of distance M describe later.
Here, the amplitude B of the sleeve 310 and degree of depth (distance from the opening surface of head 320 to the sleeve fulcrum Q1) A of head 320 is in the relation of tan θ=B/A.Further, axle offset amplitude S is in the relation of tan θ=S/F with the height F of sleeve fulcrum Q1 when tilting.Thus, the relation of B=AS/F is derived.
Therefore, the diameter D of opening 325 is provided by following formula (2).In formula (2), will be arbitrary on the occasion of 2w
1be replaced into W.
D＝2AS/F+CM/F+2w
1
＝(2AS+CM)/F+W
＝(2AS+CM)/√(M
2-S
2)+W…(2)
Or, also the relation M=S/sin θ of distance M, axle offset amplitude S and tiltangleθ can be substituted into formula (2), such as shown in the formula (2 '), the diameter D of opening 325 is expressed as the function of tiltangleθ.
D＝2A·tanθ+C/cosθ+W…(2’)
Then, be described with reference to the determining method of Figure 10 to diameter (diameter of the center position in the cross section) L of seal member 313.Figure 10 is the longitudinal section of the lens holding apparatus 300 when producing axle offset.
When sleeve 310 tilts with tiltangleθ, use the diameter D (with reference to formula (2)) of opening 325, provided diameter (beveled footpath) G of the opening 325 observed from the direction of central shaft A31 by following formula (3).
G＝D·cosθ…(3)
When the radius setting the radius of seal member 313 as the axle portion 111 of P (P=L/2), sleeve 310 is K (K=C/2), if when tiltangleθ is maximum, beveled footpath G is when meeting following formula (4), then need not extract seal member 313 from opening 325 when pull-up sleeve 310, just can seal this opening 325.
G<P+K…(4)
Therefore, the diameter L of seal member 313 is provided by formula (5).
L＝2·P>2(G-K)
L>2(D·cosθ-C/2)…(5)
Then, be described with reference to the determining method of Figure 11 to height (height of the center position in the cross section) Y of the seal member 313 being benchmark with sleeve fulcrum Q1.Figure 11 is the longitudinal section of lens holding apparatus 300.
Use the radius X in the radius of curvature Q of internal face 326, seal member 313 and the gap Z of internal face 326 and the cross section of seal member 313, the radius V that fascinates of the seal member 313 when being fascinated to sleeve 310 of sening as an envoy to by following formula (6).
V＝Q-Z-X…(6)
Therefore, use the radius V and diameter L that fascinates (with reference to formula (5)) of above-mentioned seal member 313, provided the height Y of seal member 313 by following formula (7).
Y＝√(V
2-L
2/4)…(7)
Then, be described with reference to the determining method of Figure 12 to the height (distance M) of the sleeve fulcrum Q1 being benchmark with the centre of sphere Q2 of machined surface 133.Figure 12 is the longitudinal section of lens holding apparatus 300.
Use the radius of curvature R of machined surface 133 and the radius of machining U of workpiece 1, provided with the height N of the end face 1b of the centre of sphere Q2 of machined surface 133 workpiece 1 that is benchmark by following formula (8).Here, radius of machining U is the distance of the rotary middle spindle (the central shaft A32 of head 320) from the edge (and the border between end face 1b) of machined surface 1a to workpiece 1.
N＝√(R
2-U
2)…(8)
When set the machined surface 1a in the cross section shown in Figure 12 central angle half-angle (from centre of sphere Q2 to the end of machined surface 1a extend line and central shaft A32 formed by angle) as β time, the height N of end face 1b is provided by following formula (9).
N＝R·cosβ…(9)
Sleeve fulcrum Q1 is set to the tangent line at the edge place of the machined surface 1a point crossing with central shaft A32.Therefore, between distance M and radius of curvature R, there is following relation.
R＝M·cosβ…(10)
Therefore, the relation of following formula (11) is set up.
cosβ＝N/R＝R/M…(11)
As mentioned above, the distance M from the centre of sphere Q2 of machined surface 133 to sleeve fulcrum Q1 is provided by following formula (12).
M＝R
2/N
＝R
2/√(R
2-U
2)…(12)
As described above, according to embodiment 3, owing to setting the shape of the internal face 326 of inner space 324 as spherical shape, so, even if under the state that head 320 tilts relative to sleeve 310 upward pull-up sleeve 310 when, the entirety of seal member 313 also can be made to abut with internal face 326.Therefore, it is possible to maintain the seal of inner space 324, can reliably adsorb holding workpiece 1.
And, according to embodiment 3, owing to determining the size in each portion of the diameter D of opening 325 etc. as mentioned above, so, in the process of workpiece 1, even if head 320 tilts relative to sleeve 310, sleeve 310 and head 320 also can not interfere, and can not hinder rotating freely (the driven rotation relative to machining tool 130) of head 320.Therefore, it is possible to suppress the reduction for the machining accuracy of workpiece 1.
Then, the preparation method of the lens using the lens holding apparatus 100 ~ 300 of above-mentioned embodiment 1 ~ 3 is described., as an example, illustrate the situation using lens holding apparatus 300 below, but, when using lens holding apparatus 100 and 200, also lens can be made by same method.In addition, before the making of lens, pasting pad material 2 in advance in lens receiving portion 124.
First, as shown in Figure 6, under the state making workpiece 1 abut with lens receiving portion 124 across gasket material 2, pull-up sleeve 310 and seal member 313 is abutted with internal face 326 upward, further, the vacuum suction apparatus be connected with exhaust line 115 is made to carry out work.Thus, inner space 324 is depressurized, and workpiece 1 is adsorbed in lens receiving portion 124.Under the state of such holding workpiece 1, the machined surface 133 of machining tool 130 is abutted with the machined surface 1a of workpiece 1.Machining tool 130 is arranged on not shown equipment for processing lens, is driven and rotate around central shaft A13 by this equipment for processing lens.
Then, vacuum suction apparatus is stopped, as shown in Figure 5, the support 114 of sleeve 310 is abutted with front end receiving portion 129, by sleeve 310 support head 320.In this condition, not shown equipment for processing lens is made to carry out work and machining tool 130 is rotated.Thus, the head 320 of workpiece 1 and this workpiece 1 of maintenance is driven in machining tool 130 and rotates, and is processed (grinding or grinding) by the machined surface 1a of machined surface 133 pairs of workpiece 1.
After the process finishing for workpiece 1, pull-up sleeve 310 and seal member 313 is abutted with internal face 326 upward, and, make the vacuum suction apparatus be connected with exhaust line 115 carry out work.Thus, inner space 324 is depressurized again, and workpiece 1 is adsorbed in lens receiving portion 124.In this condition, as shown in figure 13, pull-up sleeve 310 and hanging holding head 320 upward further, separates workpiece 1 from machining tool 130.Then, with holding workpieces 1 such as the hands of user, make vacuum suction apparatus stop and separating workpiece 1 from lens holding apparatus 300.Thus, the workpiece 1 (lens) having carried out expecting processing is obtained.
Embodiment 1 ~ 3 described above, only for implementing example of the present invention, the present invention is not limited thereto.Further, the present invention, by the multiple structural elements disclosed in appropriately combined embodiment 1 ~ 3, can form various invention.The present invention can carry out various distortion according to specification etc., and then, other various embodiments can be carried out within the scope of the invention.
Label declaration
1: workpiece; 1a: machined surface; 1b: end face; 2: gasket material; 100,200,300: lens holding apparatus; 110,210,310: sleeve; 111: axle portion; 112,211,311: protuberance; 113,213,313: seal member; 114: support; 115: exhaust line; 116,212,312: otch; 120,220,320: head; 121,221,321: head main body bottom; 122,222,322: head main body top; 123,223,323: threaded portion; 124: workpiece receiving portion; 125,224,324: inner space; 126,225,325: opening; 127,226,326: internal face; 128: SS; 129: front end receiving portion; 130: machining tool; 131: grinding wheel spindle; 132: emery wheel; 133: machined surface.
Claims (amendment according to treaty the 19th article)
1. (after amendment) a kind of lens holding apparatus, is characterized in that,
This lens holding apparatus has maintenance as the head of the optics of processing object and the sleeve supporting this head in the mode that can rotate,
Described sleeve has:
The axle portion of exhaust line is provided with in inside;
Be arranged to the protuberance given prominence to outer peripheral side relative to described axle portion;
Be arranged on the seal member on described protuberance; And
Be arranged on the front end in described axle portion and the support in a spherical part,
Be provided with in described head:
Keep the workpiece receiving portion of described optics;
Receive the inner space of described protuberance;
Make the opening of the ft connection of described inner space and this head, the diameter that this opening has is greater than the diameter in described axle portion and is less than the external diameter of described protuberance;
Make the SS that described inner space is communicated with described workpiece receiving portion; And
The front end receiving portion that can abut for described support,
From the edge of described opening towards outer circumferential side, the internal face of described head is more close to the bottom surface of described inner space.
2. lens holding apparatus according to claim 1, is characterized in that,
When by described in described sleeve hanging holding when head, described seal member abuts with the internal face of described head, and described opening is sealed.
3. (deletion)
4. (after amendment) lens holding apparatus according to claim 1, is characterized in that,
Described internal face is spherical zone shape.
5. (after amendment) lens holding apparatus according to claim 1, is characterized in that,
Described internal face is the shape of the side of the frustum of a cone.
6. lens holding apparatus according to claim 5, is characterized in that,
Be configured with described seal member as follows: when to abut with described front end receiving portion when making described support and make the central shaft of the central shaft of described sleeve and described head consistent, cause the center of vertical line through the cross section of described seal member of described internal face from the centre of sphere of described support.
Illustrate or state (amendment according to treaty the 19th article)
Revise in claim 1, added the content of the claim 3 before amendment.Wherein, " the described internal face " of the claim 3 before amendment is changed to " internal face of described head "
Delete the claim 3 before amendment.
Revise in claim 4,5, change the numbering of quoted claim.
Claims (6)
1. a lens holding apparatus, is characterized in that,
This lens holding apparatus has maintenance as the head of the optics of processing object and the sleeve supporting this head in the mode that can rotate,
Described sleeve has:
The axle portion of exhaust line is provided with in inside;
Be arranged to the protuberance given prominence to outer peripheral side relative to described axle portion;
Be arranged on the seal member on described protuberance; And
Be arranged on the front end in described axle portion and the support in a spherical part,
Be provided with in described head:
Keep the workpiece receiving portion of described optics;
Receive the inner space of described protuberance;
Make the opening of the ft connection of described inner space and this head, the diameter that this opening has is greater than the diameter in described axle portion and is less than the external diameter of described protuberance;
Make the SS that described inner space is communicated with described workpiece receiving portion; And
The front end receiving portion that can abut for described support.
2. lens holding apparatus according to claim 1, is characterized in that,
When by described in described sleeve hanging holding when head, described seal member abuts with the internal face of described head, and described opening is sealed.
3. lens holding apparatus according to claim 1 and 2, is characterized in that,
From the edge of described opening towards outer circumferential side, described internal face is more close to the bottom surface of described inner space.
4. lens holding apparatus according to claim 3, is characterized in that,
Described internal face is spherical zone shape.
5. lens holding apparatus according to claim 3, is characterized in that,
Described internal face is the shape of the side of the frustum of a cone.
6. lens holding apparatus according to claim 5, is characterized in that,
Be configured with described seal member as follows: when to abut with described front end receiving portion when making described support and make the central shaft of the central shaft of described sleeve and described head consistent, cause the center of vertical line through the cross section of described seal member of described internal face from the centre of sphere of described support.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013224517 | 2013-10-29 | ||
| JP2013-224517 | 2013-10-29 | ||
| PCT/JP2014/067040 WO2015064148A1 (en) | 2013-10-29 | 2014-06-26 | Lens holding jig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105228795A true CN105228795A (en) | 2016-01-06 |
| CN105228795B CN105228795B (en) | 2017-03-15 |
Family
ID=53003768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480026765.0A Active CN105228795B (en) | 2013-10-29 | 2014-06-26 | Lens holding apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20160052101A1 (en) |
| JP (1) | JP6270865B2 (en) |
| CN (1) | CN105228795B (en) |
| WO (1) | WO2015064148A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105965348A (en) * | 2016-07-22 | 2016-09-28 | 成都贝瑞光电科技股份有限公司 | Ball cover positioning tool |
| CN106312745A (en) * | 2016-11-07 | 2017-01-11 | 中国科学院长春光学精密机械与物理研究所 | Optical element holder |
| CN114147504A (en) * | 2021-12-14 | 2022-03-08 | 江苏集萃精凯高端装备技术有限公司 | Lens fixing device and ultra-precise turning method of lens |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202603A (en) * | 2018-11-02 | 2019-01-15 | 江苏新事通光电科技有限公司 | A kind of grinding device for optical mirror slip processing |
| KR20220006678A (en) * | 2020-07-08 | 2022-01-18 | 삼성디스플레이 주식회사 | Glass manufacturing apparatus and glass manufacturing method using the same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6056863A (en) * | 1983-09-06 | 1985-04-02 | Nippon Kogaku Kk <Nikon> | Lens holder for lens polishing machine |
| JPH07205004A (en) * | 1994-01-12 | 1995-08-08 | Haruchika Seimitsu:Kk | Vacuum suction work holder |
| JPH10156687A (en) * | 1996-12-02 | 1998-06-16 | Olympus Optical Co Ltd | Lens holder and lens holding method |
| CN101518884A (en) * | 2008-02-27 | 2009-09-02 | 奥林巴斯株式会社 | Retaining apparatus |
| JP2010076018A (en) * | 2008-09-24 | 2010-04-08 | Haruchika Seimitsu:Kk | Lens holder for conveying and machining lens, and lens conveying and machining apparatus |
| CN102975098A (en) * | 2008-02-25 | 2013-03-20 | 萨特隆股份公司 | Block piece for holding an optical workpiece and method for manufacturing spectacle lenses |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2252503C3 (en) * | 1972-10-26 | 1975-12-18 | Wilhelm Loh Kg Optikmaschinenfabrik, 6330 Wetzlar | Optical lens chucks for use in lens grinding or polishing machines |
| FR2277650A1 (en) * | 1974-07-12 | 1976-02-06 | Essilor Int | Appts for machining spectacle lenses - uses vacuum mounting chucks and transfer arm to support lenses during grinding operation |
| US5357716A (en) * | 1988-10-20 | 1994-10-25 | Olympus Optical Company Limited | Holding device for holding optical element to be ground |
| US5291692A (en) * | 1989-09-14 | 1994-03-08 | Olympus Optical Company Limited | Polishing work holder |
| DE4214266A1 (en) * | 1992-05-01 | 1993-11-04 | Loh Engineering Ag Oensingen | DEVICE FOR GUIDING A WORKPIECE OR TOOL IN THE PROCESSING OF TORICAL OR SPHERICAL SURFACES OF OPTICAL LENSES ON GRINDING OR POLISHING MACHINES |
| DE19920204C2 (en) * | 1999-05-03 | 2001-10-31 | Wernicke & Co Gmbh | Holding device for an eyeglass lens |
| DE10114238A1 (en) * | 2001-03-22 | 2002-10-02 | Loh Optikmaschinen Ag | Arrangement for blocking and tensioning optical lenses to be processed on the edge, in particular spectacle lenses |
| US8460069B2 (en) * | 2007-03-26 | 2013-06-11 | Hoya Corporation | Lens holder |
-
2014
- 2014-06-26 WO PCT/JP2014/067040 patent/WO2015064148A1/en active Application Filing
- 2014-06-26 JP JP2015544830A patent/JP6270865B2/en active Active
- 2014-06-26 CN CN201480026765.0A patent/CN105228795B/en active Active
-
2015
- 2015-11-03 US US14/931,511 patent/US20160052101A1/en not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6056863A (en) * | 1983-09-06 | 1985-04-02 | Nippon Kogaku Kk <Nikon> | Lens holder for lens polishing machine |
| JPH07205004A (en) * | 1994-01-12 | 1995-08-08 | Haruchika Seimitsu:Kk | Vacuum suction work holder |
| JPH10156687A (en) * | 1996-12-02 | 1998-06-16 | Olympus Optical Co Ltd | Lens holder and lens holding method |
| CN102975098A (en) * | 2008-02-25 | 2013-03-20 | 萨特隆股份公司 | Block piece for holding an optical workpiece and method for manufacturing spectacle lenses |
| CN101518884A (en) * | 2008-02-27 | 2009-09-02 | 奥林巴斯株式会社 | Retaining apparatus |
| JP2010076018A (en) * | 2008-09-24 | 2010-04-08 | Haruchika Seimitsu:Kk | Lens holder for conveying and machining lens, and lens conveying and machining apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105965348A (en) * | 2016-07-22 | 2016-09-28 | 成都贝瑞光电科技股份有限公司 | Ball cover positioning tool |
| CN106312745A (en) * | 2016-11-07 | 2017-01-11 | 中国科学院长春光学精密机械与物理研究所 | Optical element holder |
| CN114147504A (en) * | 2021-12-14 | 2022-03-08 | 江苏集萃精凯高端装备技术有限公司 | Lens fixing device and ultra-precise turning method of lens |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6270865B2 (en) | 2018-01-31 |
| JPWO2015064148A1 (en) | 2017-03-09 |
| US20160052101A1 (en) | 2016-02-25 |
| CN105228795B (en) | 2017-03-15 |
| WO2015064148A1 (en) | 2015-05-07 |
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