CN102407475A - Polishing jig air injection apparatus and method - Google Patents
Polishing jig air injection apparatus and method Download PDFInfo
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- CN102407475A CN102407475A CN201110278507XA CN201110278507A CN102407475A CN 102407475 A CN102407475 A CN 102407475A CN 201110278507X A CN201110278507X A CN 201110278507XA CN 201110278507 A CN201110278507 A CN 201110278507A CN 102407475 A CN102407475 A CN 102407475A
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- Prior art keywords
- seal
- air
- air inlet
- cannelure
- main body
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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
- B24B13/01—Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools
- B24B13/012—Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools conformable in shape to the optical surface, e.g. by fluid pressure acting on an elastic membrane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49998—Work holding
Abstract
This invention discloses a polishing jig air injection apparatus including a polishing jig installation base including a surface on which a spectacle lens polishing jig is placed, an injection member which is inserted into an air injection port of the spectacle lens polishing jig, and an air supply device which supplies the air into a balloon member of the spectacle lens polishing jig via the injection member and the air injection port. The injection member includes a main body formed in a pillar shape, and a seal member. The main body includes an air passage, and an annular groove formed in the outer circumferential portion of the main body. The seal member is inserted into the annular groove, is formed in an annular shape, and uses an elastic body. The seal member has an outer diameter larger than the inner diameter of the air injection port.
Description
Technical field
The present invention relates to be used for air is injected into the grinding clamp air injection device and the method for grinding clamp, said grinding clamp is provided with the air bag spare that under air pressure, expands.
Background technology
Lapping device described in the for example japanese patent application publication No. No.2004-106117 capable of using (document 1) is as the lapping device that is used to grind lens (spectacle lens) surface, and the grinding clamp that the lapping device in the document uses is provided with the air bag spare that under air pressure, expands.The valve that disclosed grinding clamp comprises air bag spare for example, supports the support member of said air bag spare and be used for the air flue that the said support member of opening/closing forms in the document 1.
Said air flue forms from the air inlet and extends to the air bag spare, and said air inlet is in an end face upper shed of support member.Said valve has the structure of opening by means of the pressure that is supplied to the air in the air inlet.
When grinding clamp was installed in the air injection device, air was injected in the air bag spare.Said air injection device for example comprises: the erecting bed of grinding clamp, the air feeder that is inserted in the injection member in the air inlet and is used for air is discharged into from the air discharge ports of injection member the air inlet are installed on it.
Injection member attaches to erecting bed and protrudes from erecting bed, thereby through grinding clamp is installed in this injection member is inserted in the air inlet.Said injection member comprise form discoidal main body and be used for sealed body and the air inlet between the seal in gap.Air discharge ports is in the outer peripheral face upper shed of main body.Use elastomeric material that seal is formed the cup-like shape that has around the outer peripheral portion of main body, thereby the sealing part remain on the said main body through himself elasticity.
Be inserted in together with main body under the situation in the air inlet at seal, in case air is discharged into the air inlet from the air discharge ports of main body, the outer peripheral portion of seal radially outwards expands and closely contacts with the wall of air inlet.Seal is distortion therefore, thus the gap between sealing injection member and the air inlet.Flow into the air inlet from air discharge ports air discharged middle body from seal under the situation of passing the gap between main body and the seal.
That is to say, carry out the grinding clamp air method for implanting that the present invention relates to through following steps: when injection member is inserted in the air inlet,, and seal is radially outwards expanded through air to the injection member air supply.
Regrettably, in document 1 disclosed apparatus and method, air must pass the gap between seal and the injection member main body, so the shape of seal has certain restriction.That is to say that seal must form the shape that covers the injection member main body, therefore must use special-purpose member with given shape.This has caused being used for injecting to grinding clamp the manufacturing cost increase of the air injection device of air.
In addition, for example, through using under the situation of back deterioration for a long time, the power of its clamping main body will weaken at seal.When this thing happens, seal came off from the injection member main body easily.For example, after accomplishing air and injecting with grinding clamp when the air injection device unloads, seal possibly come off from the injection member main body under the situation that still invests the air inlet.If seal comes off from main body, will interrupt grinding clamp is loaded into the operation in the lapping device, thereby reduce grinding efficiency.
It should be noted that, when addressing the above problem, must avoid the decline of sealing property of sealing component.
Summary of the invention
Proposed the present invention and overcome the problems referred to above, the invention provides a kind of grinding clamp air injection device and method, its use has high sealing performance, is difficult for coming off and cheap seal from the injection member main body.
According to an aspect of the present invention; A kind of grinding clamp air injection device is provided; It comprises: the grinding clamp erecting bed; This grinding clamp erecting bed comprises lens grinding clamp setting installed surface on it, and said lens grinding clamp comprises air inlet and air bag spare, and this air bag spare expands under the pressure of the air of supplying with from the air inlet; Injection member, it is supported on the installed surface of grinding clamp erecting bed and from the installed surface protrusion, and is inserted in the air inlet of lens grinding clamp; And air feeder, this air feeder is connected to injection member and via injection member and air inlet air is infeeded in the air bag spare.Said injection member comprises: form the main body of cylindricality, said main body comprises the air flue that runs through the main body two ends and is formed on the cannelure in the main body outer peripheral portion; And seal, said seal is inserted in the cannelure, forms the annular shape of on whole periphery, extending along cannelure, and uses elastomer, and the external diameter of said seal is greater than the internal diameter of said air inlet.
According to a further aspect in the invention, a kind of grinding clamp air method for implanting is provided, it may further comprise the steps: injection member is inserted in the air inlet of lens grinding clamp; And air is discharged to the air inlet so that the air bag spare that is connected with the air inlet expands from injection member.Said injection member comprises: form the main body of cylindricality, said main body comprises the air flue that runs through the main body two ends and is formed on the cannelure in the outer peripheral portion of main body; And seal, said seal is inserted in the cannelure, forms the annular shape of on whole periphery, extending along cannelure, and uses elastomer, and the external diameter of said seal is greater than the internal diameter of said air inlet.
Description of drawings
Fig. 1 shows the sectional view of the layout of grinding clamp and erecting bed;
Fig. 2 shows the amplification sectional view of grinding clamp air inlet;
Fig. 3 is the sectional view that attaches to the injection member of erecting bed;
Fig. 4 shows the sectional view that injection member is inserted in the state in the air inlet;
Fig. 5 shows the sectional view of another embodiment of injection member;
Fig. 6 shows the sectional view that injection member is inserted in the state in the air inlet;
Fig. 7 shows the sectional view of another embodiment of injection member;
Fig. 8 shows the sectional view that injection member is inserted in the state in the air inlet;
Fig. 9 is the sectional view that attaches to the injection member of erecting bed;
Figure 10 shows the sectional view of the original state of Connection Step;
Figure 11 shows the sectional view of the done state of Connection Step;
Figure 12 is used for explaining the flow chart that air is injected into the method for grinding clamp;
Figure 13 shows the sectional view of the original state of Connection Step;
Figure 14 shows the sectional view of the done state of Connection Step;
Figure 15 is used for explaining the flow chart that air is injected into the method for grinding clamp;
Figure 16 shows the sectional view of the original state of Connection Step;
Figure 17 shows the sectional view of the done state of Connection Step;
Figure 18 is used for explaining the flow chart that air is injected into the method for grinding clamp; And
Figure 19 shows the sectional view of the size of various piece in the experiment.
The specific embodiment
(first embodiment)
To describe a embodiment in detail referring to figs. 1 through Fig. 4 below according to grinding clamp air injection device of the present invention.
Grinding clamp air injection device 1 shown in Fig. 1 comprises: grinding clamp erecting bed 3, and lens grinding clamp 2 is mounted thereto; Injection member 4, it is from erecting bed 3 protrusions; And air feeder 6, it is connected to injection member 4 through air flue 5.
Grinding clamp 2 is equivalent to the grinding clamp described in the document 1, and is using air injection device 1 according to present embodiment to be loaded onto the lapping device (not shown) after being injected into air wherein.Grinding clamp 2 according to present embodiment is included in the rubber pneumatic bag spare 11 that expands under the air pressure, and the support member 12 that is used for support air bag part 11.Air bag spare 11 expands under the situation of the air that is provided with coming from air feeder 6 (describing after a while), and at its superficial expansion installation grinding pad when having predetermined curvature.Here, predetermined curvature is meant the curvature on lens surface to be ground.
In support member 12, be formed for air is injected into the air flues 13 of discharging air in the air bag spare 11 or from air bag spare 11 inside.Air flue 13 comprises circular port 14 and valve 15, and circular port 14 is formed in the support member 12 and has circular cross-section, and valve 15 is located between circular port 14 and the air bag spare 11.Circular port 14 be positioned at a end on air bag spare 11 opposite sides in the smooth attachment surface 12a of support member 12 upper shed with as air inlet 16.Air inlet 16 forms on attachment surface 12a with the circular open configured openings, and extends along the direction perpendicular to attachment surface 12a.
As shown in Figure 2, valve 15 comprises check-valves 23 and exhaust gear 25, and wherein check-valves 23 comprises ball 21 and conical wind spring 22, and exhaust gear 25 comprises the vent pins 24 relative with ball 21.Check-valves 23 adopts and makes the structure that only gets into air bag spare 11 from the air of air inlet 16.Vent pins 24 is used to overcome the spring force extrusion ball 21 of conical wind spring 22.Vent pins 24 is supported by valve chest 26 so that can be in retracted position shown in Figure 2 and extend/retract between the exhaust position of the front end extrusion ball 21 of vent pins 24 wherein.In addition, be located at conical wind spring 27 between vent pins 24 and the valve chest 26 along direction bias voltage vent pins 24 away from ball 21.
Erecting bed 3 forms the plate shape, and it has smooth installed surface 3a, and grinding clamp 2 is installed on this smooth installed surface, and is as shown in Figure 1.And erecting bed 3 supports by the mobile device (not shown) so that can adhere to the anchor clamps that adhere to/dismantle grinding clamp at height measuring position (not shown)/and mobile between the removed position.The height measuring position is the position that the height measuring device (not shown) is measured the height of the air bag spare 11 that under air pressure, expands.
Be installed under the situation on the erecting bed 3 at air bag spare 11, air bag spare 11 expands when air bag spare 11 is provided with the air from air feeder 6 (describing after a while).The surface curvature of air bag spare 11 changes along with the height of air bag spare 11.Therefore, it is consistent that air is supplied in the air bag spare 11 the corresponding height of the height measured up to height measuring device and target curvature (surface curvature of lens to be ground).
Threaded section 32 is connected to air feeder 6 through air flue 5.Air feeder 6 uses the air compressor (not shown) as the air supply source.
Cylinder-shaped body 33 forms the outer diameter A that has less than the internal diameter B (see figure 2) of the air inlet 16 of grinding clamp 2.Be formed with the through hole (air flue) 35 that runs through main body 33 two ends at the axis centre place of main body 33.End in main body 33 protrusion side end face upper sheds of through hole 35 is used as air discharge ports 36.The other end of through hole 35 is connected to air flue 5.
Be used for keeping outer peripheral portion that the cannelure 41 of seal 34 (describing after a while) is formed on main body 33 to extend along Zhou Fangxiang.According to the cannelure 41 of present embodiment by constituting with the lower part: be parallel to main body 33 outer peripheral face 33a perisporium 42 and radially from the perisporium 42 outward extending the first side walls 43 and second sidewall 44.The first side wall 43 and second sidewall 44 form the installed surface 3a that is parallel to erecting bed 3.
Seal 34 forms and is inserted in the cannelure 41 by elastomer.Seal 34 has the annular shape that on whole periphery, stretches along cannelure 41.The seal 34 that uses in the present embodiment is ready-made O shape circles.
That is to say that seal 34 is inserted in the air inlet 16 of grinding clamp 2 together with the main body 33 of injection member 4, thereby the radially inside squeeze sealing member 34 of the wall 16a of air inlet 16 is as shown in Figure 4.At this moment, the interior circumferential portion of seal 34 keeps contacting with perisporium 42 preventing seal 34 radially to internal strain, thus seal 34 towards the gap g strain.As a result, gap g is by seal 34 sealings of strain.In other words, gap g forms under the situation of injection member 4 being inserted air inlets 16 seal 34 sealings by strain.
It should be noted that seal 34 is not limited to O shape circle, but can adopt any type of seal, as long as it is as the elastomer with the shape of on whole periphery, extending along cannelure 41.For example, seal 34 can use and form annular elastomer, or has the elastomer through the shape that obtains a peripheral part cut ring.When seal 34 uses have the annular elastomer that obtains a peripheral part cut ring with such passing through; It is opened as the C shape, thereby can easily carry out the operation that is inserted in the cannelure 41 and with its operation that from cannelure 41, removes.
The elastomer that forms seal 34 can be by processing such as the material of fluorubber (FPM).Fluorubber has self lubricity, so in the air inlet 16 that seal 34 is inserted grinding clamps 2/resistance reduces when from this air inlet 16, removing the sealing part.This not only helps adhering to/dismantling of grinding clamp 2, but also makes seal 34 not easy to wear.
The grinding clamp air injection device 1 of structure is injected into air in the air bag spare 11 of grinding clamp 2 in order to use as stated; At first; With grinding clamp 2 be installed in be arranged at anchor clamps adhere to/erecting bed 3 of removed position on, and injection member 4 is inserted in the air inlet 16, as shown in Figure 4.At this moment, the attachment surface 12a of grinding clamp 2 is in the face of the installed surface 3a of erecting bed 3.Injection member 4 is being inserted under the situation in the air inlet 16, seal 34 be compressed and strain to get into gap g.Even in cannelure 41 under the compressed situation, its elasticity can not weaken yet at seal 34.Therefore, through suitable elasticity repulsion, seal 34 and the perisporium 42 that limits cannelure 41 and first and second sidewalls 43 and 44 and closely contact with the wall 16a of air inlet 16, thus seal the gap between injection member 4 and the air inlet 16.
Then, erecting bed 3 is moved to the height measuring position, and operation air feeder 6 is to be discharged to air in the air flue 5.Through hole 35 backs of air in the air flue 5 in passing injection member 4 flow in the air inlet 16.At this moment, seal 34 keeps contacting with the wall 42 to 44 that limits cannelure 41 and with the tight of wall 16a of air inlet 16, so air can not leak when the gap of passing between air inlet 16 and the injection member 4.
When the pressure in the air inlet 16 was elevated to the degree that valve 15 opens, the air that is supplied in the air inlet 16 flowed into air bag spares 11 passing valve 15 backs.Air bag spare 11 injects the back at air and expands.Air is injected in the air bag spare 11 till the height of the air bag spare 11 that height measuring device records reaches object height.Here, object height is meant and the corresponding height of the surface curvature of lens to be ground.
After the completion air was injected in the air bag spare 11, erecting bed 3 turned back to anchor clamps and adheres to/removed position, as stated.Erecting bed 3 move to anchor clamps adhere to/removed position after, grinding clamp 2 is pulled down and it is loaded into the lapping device from erecting bed 3.When with grinding clamp 2 when erecting bed 3 is pulled down, masterpiece is used on the seal 34 it is pulled away from injection member 4.Yet in fact, owing to seal 34 is inserted into and remains in the cannelure 41, so seal 34 can not come off from injection member 4.
Therefore, owing to use ready-made O shape circle as seal 34, therefore can control its manufacturing cost lower according to the grinding clamp air injection device 1 of present embodiment.In addition; Because according to the grinding clamp air injection device 1 of present embodiment even when seal 34 is compressed in the cannelure 41, also can not reduce its elasticity; Therefore not only can realize high sealing performance, prevent seal 34 wearing and tearing when grinding clamp 2 is pulled down but also adhering to/dismantling.
It should be noted, because through suitable elasticity repulsion seal 34 is close to wall 42 to 44 that limits cannelure 41 and the wall 16a that is close to air inlet 16, so can realize high sealing performance.That is to say that it is owing to seal 34 can be followed on the surface of wall 42 to 44 and the microspike and recessed distortion that form in the surface that sealing property improves.
Can prevent that the reason that seal 34 weares and teares from being, excessive power of no use makes seal 34 be close to the wall 16a of air inlet 16, and its frictional resistance reduces relatively when therefore the sealing part being slided on wall 16a.
And, because seal 34 is inserted in the cannelure 41 and can be from not coming off according to the injection member 4 the grinding clamp air injection device 1 of present embodiment, therefore can not interrupt after air injects grinding clamp 2 being loaded into the operation of lapping device from erecting bed 3.Therefore, the use of grinding clamp air injection device 1 allows the high-efficient grinding to lens.
(second embodiment)
Can be like Fig. 5 and injection member and the seal of forming shown in Figure 6.With reference to Fig. 5 and Fig. 6, identical Reference numeral represent with referring to figs. 1 through those identical or the be equal to members described in 4, therefore will no longer be described in detail as required these members.
That is to say, in the present embodiment, between the interior circumferential portion of perisporium 42 that limits cannelure 41 and seal 34, be formed with gap g.In the time will being inserted in the air inlet 16 according to the seal 34 of present embodiment, the radially inside strain of seal 34 is to get into gap g, and be as shown in Figure 6.Seal 34 is strain thus, thus seal clearance g.
Likewise, in a second embodiment,, therefore can produce the effect that is equal to the foregoing description because seal 34 can not reduce elasticity.
(the 3rd embodiment)
Can be like Fig. 7 and injection member and the seal of forming shown in Figure 8.With reference to Fig. 7 and Fig. 8, identical Reference numeral represent with referring to figs. 1 through those identical or the be equal to members described in 4, therefore will no longer be described in detail as required these members.
That is to say, in the present embodiment, in first and second sidewalls 43,44 of seal 34 and qualification cannelure 41, be formed with gap g1 between at least one, and between the interior circumferential portion of perisporium 42 and seal 34, be formed with gap g2.In the time will being inserted in the air inlet 16 according to the seal 34 of present embodiment, the sealing part contacts with the wall 16a of air inlet 16, and is not only pushed towards second sidewall 44, but also by inwardly extruding radially.
Therefore, seal 34 not only radially inwardly strain radially be positioned at inboard gap g2 to get into, but also in axial direction strain to get into another gap g1, as shown in Figure 8.Seal 34 is strain thus, thus seal clearance g1 and g2.
Likewise, in the 3rd embodiment,, therefore can produce the effect that is equal to the foregoing description because seal 34 can not reduce elasticity (although being compressed in the cannelure 41).
(the 4th embodiment)
To describe embodiment in detail with reference to Fig. 9 to Figure 12 below according to grinding clamp air method for implanting of the present invention.
Through having the air method for implanting of carrying out according to present embodiment with the grinding clamp air injection device of arranging much at one according to first embodiment 1.Yet seal 34 uses such seal, even under the situation in the air inlet 16 that injection member 4 is inserted into grinding clamp 2 during sealing part 34 strains, the sealing part does not contact with the first side wall 43 that limits cannelure 41 yet.It should be noted, in this embodiment, when seal 34 is inserted in the cannelure 41, at seal 34 and limit in the first side wall 43 and second sidewall 44 of cannelure 41 and be formed with gap g1 between at least one, as shown in Figure 9.
Shown in figure 12, carry out grinding clamp air method for implanting through Connection Step S1, air supplying step S2 and height regulating step S3 according to present embodiment.
Carry out Connection Step S1 in the following manner: with grinding clamp 2 be installed in be arranged at anchor clamps adhere to/erecting bed 3 of removed position on, and injection member 4 is inserted in the air inlet 16, shown in Figure 10 and 11.
In Connection Step S1, when being inserted into injection member 4 in the air inlet 16, at first through with the friction of the wall 16a of air inlet 16 with seal 34 towards 44 extruding of second sidewall, (axial direction pressing steps S4) shown in figure 10.Through extruding seal 34 is contacted with second sidewall 44, shown in figure 10.
Keep by this way and the 44 contacted whiles of second sidewall at seal 34, wall 16a further extends (move its below to Figure 10).The so further extension of wall 16a; Thereby outer peripheral portion through the direction squeeze sealing member 34 of advancing along wall 16a with the friction of wall 16a; The part relative with the first side wall 43 that makes seal 34 is radially to outer displacement, shown in arrow among Figure 11 (radial direction deforming step S5).
After accomplishing Connection Step S1, device 1 presents the state shown in Figure 11.That is to say that in this state, seal 34 contacts with second sidewall 44.In addition, gap g1 is formed between the first side wall 43 that at first is inserted in seal 34 and this oppose side wall 43 and 44 in the air inlet 16.In addition, gap g2 is formed between the interior circumferential portion of perisporium 42 and seal 34.
After accomplishing Connection Step S1 like this, treatment process advances to air supplying step S2.After accomplishing Connection Step S1, under the situation of the forced air path 51 (seeing Figure 11) of the interior circumferential portion of guaranteeing to extend to seal 34, carry out air supplying step S2 from the air discharge ports 36 of injection member 4.Forced air path 51 is limited the gap g3 (seeing Figure 11) between the far-end (distal end) of the gap between gap g1 and g2, injection member 4 and the valve 15 and air inlet 16 and injection member 4.
At air supplying step S2, erecting bed 3 moves to the height measuring position, and operation air feeder 6 is to be discharged to air in the air flue 5.Through hole 35 backs of air in the air flue 5 in passing injection member 4 flow in the air inlet 16.When the pressure in the air inlet 16 was elevated to the degree that valve 15 opens, the air that is supplied in the air inlet 16 flowed into air bag spares 11 passing valve 15 backs.This air bag spare expands after air is injected into air bag spare 11 in this way.
The pressure of the air of discharging from air discharge ports 36 on the other hand, also is transmitted to the interior circumferential portion of seal 34 through forced air path 51.In this way after the interior circumferential portion of seal 34 applies air pressure, seal 34 is radially by outside extruding, and the power that therefore is used to push the wall 16a of air inlet 16 increases (pressurization steps S6).That is to say, according to present embodiment, can be through the gap of using air pressure biasing sealing member 34 to seal between injection member 4 and the air inlet 16.
In height regulating step S3, air is injected in the air bag spare 11 till the height of the air bag spare 11 that height measuring device records reaches object height.Here, object height is meant and the corresponding height of the surface curvature of lens to be ground.
After the completion air was injected in the air bag spare 11, erecting bed 3 turned back to anchor clamps and adheres to/removed position.Erecting bed 3 move to anchor clamps adhere to/removed position after, grinding clamp 2 is pulled down and it is loaded into the lapping device from erecting bed 3.
Therefore; According to present embodiment; Although used cheap ready-made seal 34; But owing to just guaranteed forced air path 51 at air supplying step S2 before beginning, thereby air pressure can be applied to the interior circumferential portion of seal 34 reliably, makes that seal 34 can be by the air pressure bias voltage to carry out sealing.
Therefore, according to present embodiment, can be provided for the air supplying method of grinding clamp 2, this method can make the manufacturing cost of grinding clamp air injection device 1 lower, keeps high sealing performance simultaneously.
Connection Step S1 according to present embodiment comprises axial direction pressing steps S4 and radial direction deforming step S5.In axial direction pressing steps S4, through and the wall 16a of air inlet 16 between friction with seal 34 towards 44 extruding of second sidewall.In radial direction deforming step S5, through and the wall 16a of air inlet 16 between friction, seal 34 strains make between seal and perisporium 42, to form gap g2.
Therefore,, make the radially outside strain of seal 34, can force to form forced air path 51 through utilizing the operation that injection member 4 is inserted in the air inlet 16 according to present embodiment.Therefore, according to present embodiment,, therefore can obtain the high sealing reliability because seal 34 can radially outwards stretch more reliably.
(the 5th embodiment)
Through guaranteeing the forced air path with reference to the described method of Figure 13 to Figure 15.
With reference to Figure 13 to Figure 15, identical Reference numeral represent with reference to those identical or the be equal to members described in Fig. 9 to 12, therefore will no longer be described in detail as required these members.
That is to say, contact with two sidewalls 43,44 that limit cannelure 41, and seal 34 is to be formed with the shape formation of gap g2 between sealing part and perisporium 42 according to the seal 34 of present embodiment.In the time will being inserted in the air inlet 16 according to the seal 34 of present embodiment, through and the wall 16a of air inlet 16 between friction, the sealing part in axial direction is extruded towards erecting bed 3, shown in the arrow among Figure 14.
Therefore, will be inserted into according to the seal 34 of present embodiment among the Connection Step S1 in the air inlet 16, sealing part strain is to form gap g1 between it and the first side wall 43.That is to say that comprise axial direction deforming step S7 (seeing Figure 15) according to the Connection Step S1 of present embodiment, in this step S7, seal 34 is strain under the situation that axial direction is extruded as described above.Likewise, in the present embodiment, after accomplishing Connection Step S1, form the forced air path 51 that extends to the interior circumferential portion of seal 34 from the air discharge ports 36 of injection member 4, shown in figure 14.
Therefore,, make seal 34 in the axial direction strain, can force to form forced air path 51 through utilizing the operation that injection member 4 is inserted in the air inlet 16 according to the air method for implanting that is used for grinding clamp 2 of present embodiment.Therefore, according to present embodiment,, therefore can obtain the high sealing reliability because seal 34 can outwards stretch in radial direction more reliably.
(the 6th embodiment)
Can guarantee the forced air path through Figure 16 to method shown in Figure 180.
With reference to Figure 16 to Figure 18, identical Reference numeral represent with reference to those identical or the be equal to members described in Fig. 9 to 12, therefore will no longer be described in detail as required these members.
That is to say, form with following shape: at the sealing part and limit in the sidewall 43 and 44 of cannelure 41 and form gap g1 between at least one, and between sealing part and perisporium 42, be formed with gap g2 according to the seal 34 of present embodiment.
In the time will inserting air inlets 16 according to the seal of present embodiment 34, through and the wall 16a of air inlet 16 between friction, the sealing part in axial direction is extruded towards erecting bed 3, shown in the arrow among Figure 17.
Therefore, will be inserted into according to the seal 34 of present embodiment under the situation that seal is extruded in the above described manner among the Connection Step S1 in the air inlet 16, the sealing part contacts with second sidewall 44.That is to say that comprise axial direction pressing steps S4 (seeing Fig. 1 8) according to the Connection Step S1 of present embodiment, in this step S4, seal 34 is extruded at axial direction as described above.Likewise, in this embodiment, after accomplishing Connection Step S1, form the forced air path 51 that extends to the interior circumferential portion of seal 34 from the air discharge ports 36 of injection member 4.
Can form forced air path 51 need not to make under the situation of seal 34 obvious strains according to the air method for implanting that is used for grinding clamp 2 of present embodiment.Therefore, according to present embodiment,, therefore can use air pressure to make seal 34 strain fully owing to when seal 34 takes place than a small amount of strain, just begin air supplying step S2.As a result, adopt air method for implanting to allow further to improve sealing property according to present embodiment.
Have the size shown in Figure 19 when the prototype with the injection member 4 shown in this embodiment manufactures, and with air is actual when being injected in the grinding clamp 2, injection member 4 is reusable and can leakage air or seal 34 occurs and come off.The main body 33 of the injection member 4 that uses in this experiment has the outer diameter A of 12.6mm, and the perisporium 42 that limits cannelure 41 has the D outer diameter of 7.2mm, and cannelure 41 has the well width G of 3.7mm.Seal 34 has the inner diameter d 1 of 7.5mm and the thickness W of 3.55mm.Therefore, seal 34 has the external diameter of 14.6mm.The O shape circle that is called AS568-203 is as seal 34.This O shape circle is processed with fluorubber (FPM).
Use is used for a plurality of grinding clamps 2 of actual grinding and carries out this experiment, repeatedly each grinding clamp 2 is adhered to/dismantles 100 times and carry out air and inject 100 times.In experimentation, adhering to/dismantling each grinding clamp 2 back inspection seals 34 and whether coming off, and after air being injected in the grinding clamp 2, checking whether air leaks.Analyze experimental result; Can adhere to/dismantle at each grinding clamp 2 do not occur more than 95 times confirming to adhere to when seal 34 comes off/dismantle and meet the requirements; And air can be injected into when not occurring the air leakage in the grinding clamp 2 more than 95 times, confirms that the air injection meets the requirements.
About experimental result, confirm all grinding clamps 2 adhere at grinding clamp/dismantle and the air injection aspect all be satisfactory, as shown in table 1.In table 1, " well " represented the satisfactory result of each grinding clamp 2.The size A of each grinding clamp 2 shown in the table 1 and B have the numerical value that the internal diameter B through Measurement of Air inlet 16 on two orthogonal directions obtains.Can find out that from table 1 the air inlet 16 of the grinding clamp 2 that uses in this experiment has the internal diameter B of 14.0mm to 14.32mm.Owing to have given tolerance, so the size of the air inlet 16 in each independent grinding clamp 2 is all different.
Table 1
| Size A (mm) | Size B (mm) | Grinding clamp adheres to/dismantles | Air injects | |
| 1 | 14.04 | 14.01 | Well | Well |
| 2 | 14.11 | 14.32 | Well | Well |
| 3 | 14.07 | 14.14 | Well | Well |
| 4 | 14.02 | 14.01 | Well | Well |
| 5 | 14.09 | 14.08 | Well | Well |
| 6 | 14.04 | 14.03 | Well | Well |
| 7 | 14.10 | 14.07 | Well | Well |
| 8 | 14.05 | 14.07 | Well | Well |
| 9 | 14.06 | 14.06 | Well | Well |
| 10 | 14.06 | 14.05 | Well | Well |
| 11 | 14.07 | 14.08 | Well | Well |
| 12 | 14.10 | 14.12 | Well | Well |
| 13 | 14.08 | 14.03 | Well | Well |
| 14 | 14.03 | 14.00 | Well | Well |
| 15 | 14.04 | 14.03 | Well | Well |
| 16 | 14.15 | 14.07 | Well | Well |
| 17 | 14.08 | 14.07 | Well | Well |
| 18 | 14.04 | 14.10 | Well | Well |
Effect and the prior art of the above embodiment are compared.Prior art is used the device that comprises the seal with given shape, and is of document 1.Table 2 has gathered the result who obtains when air injection repetition 100 times/day (3000 times/month) in prior art and the foregoing description.
Because the seal of prior art is to cover type, when adhere to/the sealing part usually comes off from injection member when dismantling grinding clamp.When air injected repetition 100 times/day, seal came off about 5 times/day.In contrast, owing to all be to use the seal of fitting-type (fitting type) among each embodiment of the present invention, so the seal difficult drop-off.When embodiment of the invention repetition air under the condition identical with prior art injects, depend on the shape and the type of grinding clamp 2, the shedding frequence of seal approximately is once/day.About 5% operating mistake frequency is reduced to 1% in the foregoing description in the prior art.Therefore can improve air through the foregoing description injects.
In the prior art, air injects 1500 needs replacings of every repetition once sealing spare.In contrast, in above-described each embodiment, seal 34 can bear 6000 times more than repetition air injection.Under the situation that 3000 air of repetition in every month inject, prior art needed every month to change twice seal, and each embodiment of the present invention only need change 0.5 time seal in every month.
The seal that uses in the prior art is the special-purpose member with given shape, costs an arm and a leg.In contrast, use general O shape circle among above-described each embodiment, thereby reduced the cost of seal as seal 34.Consider the replacing frequency of seal, each embodiment can significantly reduce operating cost.
The seal 34 of above-described each embodiment can keep with prior art in identical durability.
Table 2
| Project | Prior art | Embodiment |
| Inject wrong frequency | About 5% | About 1% |
| Operational capacity | Undesirable | Well |
| Change frequency | About 2 times/month | About 0.5 time/month |
| Durability | Well | Well |
| Cost (unit cost) | ￥3590/pcs | ￥200/pcs |
| Operating cost (estimation) | The $7180/ month | The $100/ month |
| Other | Finished product (finished product) | General purpose O shape circle |
In each the foregoing description, although provided the example that the O shape circle that will have circular cross section is used as seal 34, the shape of cross section of seal 34 can suitably be changed into for example oval or avette.
According to first to the 3rd above-mentioned embodiment, through the main body 33 of seal 34 with injection member 4 is inserted in the air inlet 16, seal 34 is compressed to get among the gap g that forms between sealing part and the cannelure 41.Even owing to when seal 34 is compressed in cannelure 41, also can not reduce its elasticity, so it seals the gap between cannelure 41 and the air inlet 16 reliably.In addition, because seal 34 is inserted in the cannelure 41 of injection member 4, therefore be not easy to come off from injection member 4.And seal 34 can use cheap off-the-shelf.Therefore, such grinding clamp air injection device can be provided, it comprises the seal 34 that has high sealing performance and be difficult for coming off from injection member 4, and sealing part 34 is cheap.
According to the 4th to the 6th above-mentioned embodiment, air flows directly into air inlet 16 from the air discharge ports 36 of injection member 4.Because seal 34 is to be processed by the annular elastomeric of extending along cannelure 41, therefore can use cheap off-the-shelf.In addition,, after accomplishing Connection Step S1, that is to say, before beginning air supplying step S2, can guarantee to extend to the forced air path 51 of the interior circumferential portion of seal 34 from the air discharge ports 36 of injection member 4 according to this air method for implanting.Thereby although used cheap ready-made seal 34, air pressure can be applied to the interior circumferential portion of seal 34 reliably, makes seal 34 to be carried out sealing by the air pressure bias voltage.Therefore, can be provided for the air supplying method of grinding clamp 2, this method can make the manufacturing cost of grinding clamp air injection device lower, keeps high sealing performance simultaneously.
Claims (11)
1. a grinding clamp air injection device is characterized in that, comprising:
Grinding clamp erecting bed (3); Comprise that lens grinding clamp (2) is provided with installed surface (3a) on it; Said lens grinding clamp (2) comprises air inlet (16) and air bag spare (11), and said air bag spare (11) expands under the pressure of the air of supplying with from air inlet (16);
Injection member (4), the said installed surface (3a) that is supported on said grinding clamp erecting bed (3) upward and from said installed surface (3a) protrudes, and is inserted in the air inlet (16) of lens grinding clamp (2); And
Air feeder (6) is connected to said injection member (4) and supplies air to air bag spare (11) via said injection member (4) and air inlet (16),
Said injection member (4) comprising:
Form the main body (33) of cylindricality, said main body (33) comprises air flue (35) that runs through said main body (33) two ends and the cannelure (41) that in said main body (33) outer peripheral portion, forms; And
Seal (34) is inserted in the said cannelure (41), forms the annular shape of on whole periphery, extending along said cannelure (41), and uses elastomer, and the external diameter (d2) of said seal (34) is greater than the internal diameter (B) of air inlet (16).
2. device according to claim 1, wherein, said seal (34) is formed by O shape circle.
3. device according to claim 1, wherein,
Said air inlet (16) is in attachment surface (12a) upper shed of lens grinding clamp (2); The said installed surface (3a) of said attachment surface (12a) and said grinding clamp erecting bed (3) is relative, and said air inlet (16) has and is limited to round-shaped in the attachment surface (12a);
The said main body (33) of said injection member (4) has cylinder form; And
The said seal (34) of said injection member (4) has the annular shape.
4. device according to claim 1, wherein,
Between said seal (34) and said cannelure (41), have gap (g, g1, g2), said gap (g, g1, g2) is by the said seal sealing of strain when being inserted into said injection member (4) in the air inlet (16).
5. device according to claim 4, wherein,
Said cannelure (41) comprise the perisporium (42) of the outer peripheral face (33a) that is parallel to said main body (33) and in radial direction from the outward extending pair of sidewalls of said perisporium (42) (43,44); And
In said seal (34) and said pair of sidewalls (43,44), there is gap (g, g1) between at least one.
6. device according to claim 4, wherein,
Said cannelure (41) comprise the perisporium (42) of the outer peripheral face (33a) that is parallel to said main body (33) and in radial direction from the outward extending pair of sidewalls of said perisporium (42) (43,44); And
Between said seal (34) and said perisporium (42), there is gap (g, g2).
7. a grinding clamp air method for implanting is characterized in that, said method comprising the steps of:
With in the air inlet (16) of injection member (4) insertion lens grinding clamp (2) (S1); And
Air is discharged to the air inlet (16) so that the air bag spare (11) that is connected with air inlet (16) expands (S2) from injection member (4),
Said injection member (4) comprising:
Form the main body (33) of cylindricality, said main body (33) comprises the air flue (35) that runs through said main body (33) two ends and is formed on the cannelure (41) in the outer peripheral portion of said main body (33); And
Seal (34) is inserted in the said cannelure (41), forms the annular shape of on whole periphery, extending along said cannelure (41), and uses elastomer, and the external diameter (d2) of said seal (34) is greater than the internal diameter (B) of air inlet (16).
8. method according to claim 7, wherein,
Said cannelure (41) comprise the perisporium (42) of the outer peripheral face (33a) that is parallel to said main body (33) and in radial direction from the outward extending pair of sidewalls of said perisporium (42) (43,44);
Inserting step (S1) may further comprise the steps: between seal (34) and perisporium (42), forms gap (g2), in seal (34) and said pair of sidewalls (43,44), at first inserts and form gap (g1) between the sidewall (43) of air inlet (16) and seal (34) is contacted with another sidewall (44) in the said pair of sidewalls (43,44), and
Drain steps (S2) may further comprise the steps:, be pressed on the wall of air inlet (16) with the outer peripheral portion with seal (34) at the outside biasing sealing member of radial direction (34) with air pressure.
9. method according to claim 8, wherein,
Make seal (34) form a kind of like this shape: wherein seal (34) contacts with the perisporium (42) that limits cannelure (41); And gap (g1) is formed on seal (34) and limits in the said pair of sidewalls (43,44) of cannelure (41) between at least one, and
Inserting step (S1) may further comprise the steps:
Through the friction between the wall of seal (34) and air inlet (16) seal (34) is pushed (S4) to said another sidewall (44), and
Through the friction between the wall of seal (34) and air inlet (16), make seal (34) strain between seal (34) and perisporium (42), to form gap (g2) (S5).
10. method according to claim 8, wherein,
Make seal (34) form a kind of like this shape: wherein seal (34) all contact with the said pair of sidewalls (43,44) that limits cannelure (41), and gap (g2) be formed between the perisporium (42) of seal (34) and qualification cannelure (41), and
Inserting step (S1) may further comprise the steps: through the friction between the wall of seal (34) and air inlet (16), make seal (34) strain between a seal (34) and a said sidewall (43), to form gap (g1) (S7).
11. method according to claim 8, wherein,
Make seal (34) form a kind of like this shape: wherein in the said pair of sidewalls (43,44) of seal (34) and qualification cannelure (41), form gap (g1, g2) between at least one and between the perisporium (42) of seal (34) and qualification cannelure (41), and
Inserting step (S1) may further comprise the steps: through the friction between the wall of seal (34) and air inlet (16) seal (34) is pushed (S4) to said another sidewall (44).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-209001 | 2010-09-17 | ||
| JP2010-209003 | 2010-09-17 | ||
| JP2010209001 | 2010-09-17 | ||
| JP2010209003 | 2010-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102407475A true CN102407475A (en) | 2012-04-11 |
Family
ID=44534132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110278507XA Pending CN102407475A (en) | 2010-09-17 | 2011-09-19 | Polishing jig air injection apparatus and method |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20120084967A1 (en) |
| EP (1) | EP2431127A3 (en) |
| CN (1) | CN102407475A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975117B (en) * | 2012-12-18 | 2015-01-21 | 武汉钢铁(集团)公司 | Heavy-duty rail-head sample polishing clamp |
| CN108883521B (en) * | 2016-03-24 | 2020-11-27 | 3M创新有限公司 | Plastic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2176450Y (en) * | 1993-11-25 | 1994-09-07 | 余炯明 | Miniature high-pressure air pump |
| JP2004106117A (en) * | 2002-09-18 | 2004-04-08 | Kosumotekku:Kk | Structure of air injection port and curvature setting device for polishing tool |
| CN201368274Y (en) * | 2009-02-19 | 2009-12-23 | 宁波市鄞州亚大汽车管件有限公司 | Gas pipe joint |
| CN201368108Y (en) * | 2009-02-19 | 2009-12-23 | 宁波市鄞州亚大汽车管件有限公司 | Fast pipeline joint |
| CN201517677U (en) * | 2009-09-25 | 2010-06-30 | 宁波市宇华电器有限公司 | Pipeline joint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1327496B1 (en) * | 2002-01-09 | 2009-06-17 | Hoya Corporation | Polishing apparatus |
-
2011
- 2011-09-06 EP EP11180123.9A patent/EP2431127A3/en not_active Withdrawn
- 2011-09-12 US US13/230,257 patent/US20120084967A1/en not_active Abandoned
- 2011-09-19 CN CN201110278507XA patent/CN102407475A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2176450Y (en) * | 1993-11-25 | 1994-09-07 | 余炯明 | Miniature high-pressure air pump |
| JP2004106117A (en) * | 2002-09-18 | 2004-04-08 | Kosumotekku:Kk | Structure of air injection port and curvature setting device for polishing tool |
| CN201368274Y (en) * | 2009-02-19 | 2009-12-23 | 宁波市鄞州亚大汽车管件有限公司 | Gas pipe joint |
| CN201368108Y (en) * | 2009-02-19 | 2009-12-23 | 宁波市鄞州亚大汽车管件有限公司 | Fast pipeline joint |
| CN201517677U (en) * | 2009-09-25 | 2010-06-30 | 宁波市宇华电器有限公司 | Pipeline joint |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2431127A3 (en) | 2014-08-06 |
| US20120084967A1 (en) | 2012-04-12 |
| EP2431127A2 (en) | 2012-03-21 |
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Application publication date: 20120411 |