CN101648379B

CN101648379B - Clamping device

Info

Publication number: CN101648379B
Application number: CN2008103037661A
Authority: CN
Inventors: 林奕村
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2008-08-14
Filing date: 2008-08-14
Publication date: 2012-07-18
Anticipated expiration: 2028-08-14
Also published as: CN101648379A

Abstract

The invention relates to a clamping device. The clamping device is used for clamping an ejection element, and the ejection element comprises at least a stub bar to be removed and an optical element connected with the stub bar. The clamping device comprises a clamping part, a fixing part and a plurality of supporting parts. The clamping part comprises an elastic part and a plurality of clamping members, the elastic part penetrates through each clamping member. One end of each supporting part is connected with the fixing part, the other end thereof is connected with a corresponding clamping member, so as to cooperate with the elastic part to prop the corresponding clamping members on a same circle with the fixing part as the center. The end part of each clamping member is provided with a notch which is used for sheltering the stub bar. The clamping device is applicable to ejection lens produced by dies with different die cavities, thus saving cost and improving productivity.

Description

Clamping device

Technical field

The present invention relates to eyeglass manufacturing technology field, relate in particular to a kind of clamping device that clamping has the ejaculation element of treating shearing optical elements that is used for.

Background technology

Eyeglass is many is at present processed by glass or plastics, and its manufacturing technology is comparatively ripe, generally adopts injection molding technique to make, and particularly, this injection molding technique comprises steps such as ejaculation, pressurize, cooling, the demoulding, shearing, following process.

See also Fig. 1, it is one having of penetrating to wait to shear the sketch map of the ejaculation element 10 of glass lens by Jet forming machine.Penetrate element 10 and comprise semi-finished product by the formed in mould glass lens 12 of four die cavitys.These four eyeglasses 12 are positioned at same circumference, and are connected with each other through running channel stub bar 14 and runner stub bar 16.After eyeglass 12 moulding, be transported to the shear zone with running channel stub bar 12 and runner stub bar 16 and shear, so that it is separated with running channel stub bar 14 and runner stub bar 16.

When shearing glass lens 12, need to adopt clamping device 23 fixedly running channel stub bar 14 and runner stub bar 16.See also Fig. 2, clamping device 22 tops are provided with two grooves 23 in order to clamping runner stub bar 16.Two grooves 23 are the radial distribution of the same circumference in edge respectively, and intersects at the center of circle of this circumference.During shearing, runner stub bar 16 is contained in the groove 23, and eyeglass 12 is positioned at outside the groove 23, shears operation with the cutting lens machine again and get final product.

For enhancing productivity, adopt usually in the production to have eight, 16 even the mould molding eyeglass in multimode cave more.Because the die cavity number increases, the eyeglass number of arranging on the promptly same circumference increases, and causes the radius of circumference to increase; The length that is runner increases; This requires the length of groove correspondingly to increase, and groove 23 limited length of clamping device 22 that is to say; Mould to different die cavity numbers needs configuration one by one to have the clamping device of the groove corresponding with channel size, and this can increase production cost undoubtedly.In addition, when adopting the die production eyeglass of different die cavity numbers, need change clamping device accordingly, this will reduce production efficiency.

Therefore, the clamping device of optical element that is necessary to provide the fixing die production by different die cavity numbers of a kind of ability is to save production cost and to enhance productivity.

Summary of the invention

Below be the clamping device that example is explained the eyeglass of the fixing die production by different die cavity numbers of a kind of ability with embodiment.

This clamping device is used for clamping and penetrates element.This ejaculation element comprise at least one wait to remove stub bar and link to each other with this stub bar treat shearing optical elements.This clamping device comprises clamping part, fixed part and a plurality of support portion.This clamping part comprises elastomer and a plurality of holder.This elastomer runs through each holder.Each support portion one end links to each other with this fixed part, and the other end links to each other with a corresponding holder, and will this corresponding holder to be supported in the fixed part be on the same circumference at center in order to cooperate with elastomer.The end of each holder is provided with breach, and this breach is in order to accommodate this stub bar.

Compared with prior art; In the clamping device of present technique scheme since holder to be positioned at the fixed part be on the circumference in the center of circle; Therefore the telescopic resilience body can be with the flow channel length of the distance adjustment between holder and the fixed axis to mould; Make the clamping device of present technique scheme can be applicable to the ejaculation element of the die production of fixing different die cavitys, thereby practice thrift cost and enhance productivity.

Description of drawings

Fig. 1 is a sketch map of having of penetrating being waited to shear the ejaculation element of eyeglass by Jet forming machine.

Fig. 2 is the sketch map that element is penetrated in existing clamping device clamping.

Fig. 3 is the sketch map of the clamping device that provides of first embodiment of present technique scheme.

The decomposing schematic representation of Fig. 4 clamping device shown in Figure 3.

Fig. 5 is the sketch map that element is penetrated in clamping device clamping shown in Figure 3.

The specific embodiment

Below will combine embodiment and accompanying drawing that the clamping device that the present technique scheme provides is elaborated.

Please consult Fig. 3 and Fig. 4 in the lump, the clamping device 100 that present technique scheme implementation example provides comprises clamping part 110, fixed part 120 and a plurality of support portion 130.It is on the circumference in the center of circle with fixed part 120 that clamping part 110 is positioned at one.Each support portion 130 is along the radially setting of this circumference, and the one of which end links to each other with fixed part 120, and the other end links to each other with clamping part 110.

Clamping part 110 comprises elastomer 111 and a plurality of holders 112 that are circular-arc cylinder.Elastomer 111 runs through each holder 112, thereby matches with each holder 112 and surround the formation circular ring.Elastomer 112 can be spring, elastic tape or other has the element of retractility.

Particularly, holder 112 has end face 1121, first side 1122, second side 1123 and inwall 1124.First side 1122 links to each other with end face 1121 respectively with second side 1123; And first side 1122 is relative with second side 1123; Inwall 1124 and links to each other with end face 1121 with first side 1122, second side 1123 respectively between first side 1122 and second side 1123.The end that comprises end face 1121 of holder 112 is provided with breach 1120.The shape of these breach 1120 shapes and size and the removal stub bar that links to each other with eyeglass to be sheared and size coupling are to accommodate this stub bar and this eyeglass to be sheared is positioned at outside the zone that this each holder 112 surrounds.Holder 112 offers first accepting groove 1125 and second accepting groove 1126 from inwall 1124 to its inside.First accepting groove 1125 is between second accepting groove 1126 and elastomer 111.Elastomer 111 runs through first side 1122 and second side 1123, thereby makes a plurality of holders 112 be connected with each other through elastomer 111, and is on the same circumference.

Fixed part 120 comprises fixed axis 121 and the supporting part 122 that links to each other with fixed axis 121.

Fixed axis 121 is cylindrical shape, and it comprises clamping face 1211, is used for the running channel stub bar that element is penetrated in follow-up carrying.Fixed axis 121 offers a plurality of the 3rd accepting grooves 1202 and a plurality of the 4th accepting grooves 1203 from sidewall 1201 to its inside.The 3rd accepting groove 1202 is between the 4th accepting groove 1203 and elastomer 111.The number of the 3rd accepting groove 1202 is identical with the number of first accepting groove 1125, and the number of the 4th accepting groove 1203 is identical with the number of second accepting groove 1126.

Supporting part 122 is used for fixing fixed axis 121 and carries clamping part 110.In the present embodiment, supporting part 122 is cylindrical shape, and it has loading end 1221.Loading end 1221 sizes should make that clamping part 110 still can be carried on 120 when elastomer 111 deformation quantities reached maximum.

Certainly, fixed part 120 can not comprise supporting part 122, and size to the fixed axis 121 that directly changes fixed axis 121 can be stablized and places shear and clamping to penetrate element to get final product.

Support portion 130 is the retractility element, its adjustable length.In the present embodiment, support portion 130 comprise back shaft 131 and with the elastic component 132 of back shaft 131 corresponding settings.The two ends of back shaft 131 are contained in first accepting groove 1125 and the 3rd accepting groove 1202 respectively; The two ends of elastic component 132 are contained in second accepting groove 1126 and the 4th accepting groove 1203 respectively, and the two ends of elastic component 132 and back shaft 131 are resisted against fixed part 110 and holder 112 respectively thus.Elastic component 132 can be spring or this area other flexible member commonly used, and it is in order to give holder 112 1 active forces along elastic component 132 axis.Back shaft 131 cooperates the spacing maintenance that make holder 112 and fixed part 110 constant with elastic component 132 elastic force opposite effect power with elastomer 111 in order to 112 1 of administration of fixed portion 110 and holders.Certainly, the two ends of elastic component 132 can directly be welded in the sidewall 1201 of fixed part 110 and the inwall 1124 of holder 112 respectively.

In the present embodiment, the balance that adopts elastomer 111, elastic component 132 and the 131 realization clamping parts 110 of the back shaft between elastomer 111 and elastic component 132 is with fixing.But elastic component 132 is also nonessential, also can be through running through elastomer in holder 112 bottoms, and with back shaft 131 be resisted against the position between two elastomers of holder 112 realize holder 112 balance with fixing.

In addition, the number of support portion 130 is not limited to 4.The clamping device of present technique scheme can comprise 2n support portion that is provided with at interval, the 360/n degree angle that is separated by between the per two adjacent support portions, and wherein n is the integer more than or equal to 2.Support portion 130 can also be the common extension sleeve that is provided with card-bit part in this area.When through stretching or the mode of compression makes two sleeves of this extension sleeve produce relative motion when making the length of this extension sleeve reach to need length; Two sleeves of this card-bit part fixed telescopic sleeve tube, the length of keeping extension sleeve so that two sleeves of this extension sleeve no longer produce relative motion is needs length.

Further, support portion 130 can be the consistent length structure.Accordingly, need mould, make the support portion consistent with this flow channel length to different flow channel lengths.Use when this clamping device is fixing to penetrate element, the lateral wall that the two ends of this support portion is resisted against holder 112 and fixed axis 121 respectively gets final product.

Elastomer 111 can not run through holder 112, as long as can a plurality of holders 112 be surrounded circulus through elastomer 111.Each holder 112 can be fixed in elastomer 111, also slidably is connected in elastomer 111.

See also Fig. 5, it is the use sketch map that element 200 is penetrated in clamping device 100 clampings in the present embodiment.Penetrate element 200 and comprise four glass lens to be sheared 210.It is on the same circumference in the center of circle that these four glass lens 210 are positioned at running channel stub bar 220, and is connected with each other through running channel stub bar 220 and eight runner stub bars 230.

To specifically describe the operating process of using clamping device 100 clampings to wait to shear glass lens 210 below.

(1) length of distance to the runner stub bar 230 of employing back shaft 131 and elastomer 111 fit adjustment holders 112 and fixed axis 121 adopts back shaft 131 fixing these length.

(2) penetrate the ejaculation element 200 that has four glass lens 210 by Jet forming machine.Usually, this glass lens is connected with at least one stub bar to be removed; And once at most the number of molded lenses is relevant with the die cavity number of mould, the die cavity number the more, once the number of maximum molded lenses is the more.In the present embodiment, the die cavity number of ejection shaping die is four, and once molded lenses has four at most, is four and waits to shear glass lens 210, and it is connected with each other through running channel stub bar 220 and four runner stub bars 230.

(3) will penetrate element 200 by mechanical arm and be transported to the share zone; The runner stub bar 220 that will be connected with glass lens 210 places the clamping face 1211 of fixed axis 121; Make runner stub bar 230 between fixed axis 121 and holder 112; And be limited in the breach 1120, and eyeglass 210 is positioned at outside the zone that clamping part 110 surrounds, fasten thereby will wait to shear glass lens 210.

As far as present embodiment; When the need employing has the die production eyeglass that surpasses eight die cavitys; Need to make the holder and the support portion of respective number; And adopt elastomer to run through each holder, and each holder being matched with elastomer surround circulus, each two ends, support portion is respectively against a holder and fixed part.When using this clamping device, only need the length of the runner of the mould that telescopic resilience body 111 equals until the spacing of holder 112 and fixed axis 121 to be adopted, and back shaft 131 is fixed between holder 112 and the fixed axis 121 gets final product to keep this length.

Claims

1. clamping device is used for clamping and penetrates element, and this ejaculations element comprises at least onely to be waited to remove stub bar and reach the shearing optical elements of treating that links to each other with this stub bar; It is characterized in that this clamping device comprises clamping part, fixed part and a plurality of support portion, this clamping part comprises elastomer and a plurality of holder; These a plurality of holders are connected with each other through elastomer, and this elastomer runs through each holder, and each support portion one end links to each other with this fixed part; The other end links to each other with a corresponding holder; It cooperates with elastomer and will this corresponding holder be supported in the fixed part is that the end of each holder is provided with breach on the same circumference at center, and this breach is in order to accommodate this stub bar.

2. clamping device as claimed in claim 1 is characterized in that each holder is slidingly connected to elastomer.

3. clamping device as claimed in claim 1 is characterized in that each holder is fixed in this elastomer.

4. like claim 2 or 3 described clamping devices, it is characterized in that this support portion is the retractility element.

5. clamping device as claimed in claim 4 is characterized in that this support portion comprises elastic component and back shaft, the corresponding setting of this elastic component with back shaft, and the two ends of the two ends of this elastic component and back shaft link to each other with holder with fixed part respectively.

6. clamping device as claimed in claim 5 is characterized in that this fixed part comprises fixed axis and supporting part, and this supporting part links to each other with this fixed axis, is used to carry this clamping part and fixed axis.