CN102243342A

CN102243342A - Fixing device

Info

Publication number: CN102243342A
Application number: CN2010101709977A
Authority: CN
Inventors: 余泰成; 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: 2010-05-12
Filing date: 2010-05-12
Publication date: 2011-11-16
Anticipated expiration: 2030-05-12
Also published as: CN102243342B

Abstract

The invention relates to a fixing device, which is used for fixing a blind-hole mold-core insert in a forming mold of an optical fiber coupled connector. The fixing device comprises a shell and a pressing-against piece, wherein the shell has a hollow accommodating cavity; the pressing-against piece is positioned in the hollow accommodating cavity and comprises a body part, a plurality of elastic parts and at least one pressing-against part which is matched with the blind-hole mold-core insert; the elastic parts and the at least one pressing-against part are positioned on two sides of the body part respectively; the elastic parts are pressed against the shell; the at least one pressing-against part faces the shell; the at least one pressing-against part and the shell form at least one holding cavity which is used for accommodating the blind-hole mold-core insert; and the elastic parts press the body part to tightly accommodate the blind-hole mold-core insert into the holding cavity.

Description

Holding unit

Technical field

The present invention relates to optical fiber coupled connector forming field, relate in particular to the holding unit that fixing blind hole die in a kind of optical fiber coupled connector mould is gone into son.

Background technology

At present, utilize the optical signal transmission data to be applied to the USB field of personal computer gradually, and concrete form is presented as and use the optical fiber coupled connector.Blind hole and the optical lens corresponding that the optical fiber coupled connector generally includes optical fiber, is complementary with optical fiber with optical fiber.During assembling, (Ultraviolet, UV) curable glue makes optical fiber be fixed in the preceding better position of optical lens in the optical fiber insertion blind hole and by the some ultraviolet ray.

When model optical fiber coupled connector, the blind hole die is gone into son normally via being assembled in the optical fiber coupled connector mould behind the holding unit fixing again.Yet, if going into, the blind hole die is wringing fit between son and the holding unit, can go into to cause when son enters in the holding unit blind hole die to go into the son fracture at assembling blind hole die.If it is loose fit that the blind hole die is gone between son and the holding unit, then the blind hole die goes into that son is easy to generate deflection and blind hole and the concentricity between the optical lens after making moulding is not high, thereby cause the better position before optical fiber can't be fixed in optical lens, influence the accuracy rate and the efficient of the optical signal transmission of optical fiber coupled connector.

Summary of the invention

In view of this, be necessary to provide a kind of holding unit, it is used for fixing blind hole die and goes into son, so that the blind hole die is gone into son easy fracture not when being assembled in holding unit, and can guarantee that the blind hole die goes into son and do not produce deflection and make and have higher concentricity between blind hole after the moulding and the optical lens, finally make optical fiber be fixed in better position before the optical lens with the accuracy rate and the efficient of the optical signal transmission that guarantees the optical fiber coupled connector.

A kind of holding unit, its blind hole die that is used for fixing optical fiber coupled connector mould is gone into son.This holding unit comprises a housing and a breasting part that is positioned at this host cavity with hollow host cavity.This breasting part comprises that a body, a plurality of elastic and at least one go into the bearing and leaning portion that son cooperates with this blind hole die.This elastic and this at least one bearing and leaning portion lay respectively at the both sides of this body, and this elastic contacts on this housing.This at least one bearing and leaning portion is relative with this housing and form at least one jointly with this housing and be used to accommodate the containing cavity that this blind hole die is gone into son.This elastic is oppressed this body and closely is contained in this containing cavity so that this blind hole die is gone into son.

Compared to prior art, the ccontaining blind hole die of containing cavity that this holding unit utilizes bearing and leaning portion and housing to form is gone into son, and utilize elastic to oppress this body closely to be contained in this containing cavity so that this blind hole die is gone into son, on the one hand assembling blind hole die go into son when entering in the holding unit elastic can bounce back and reserve greater room go into son for the blind hole die, thereby can not cause the blind hole die to go into the fracture of son; Elastic can be oppressed this body and closely is contained in this containing cavity so that this blind hole die is gone into son on the other hand, thereby it is gapped and produce deflection to avoid the blind hole die to go between son and the housing, make blind hole and the concentricity between the optical lens after the moulding higher, and optical fiber can be fixed in the better position before the optical lens, thereby guarantees the accuracy rate and the efficient of the optical signal transmission of optical fiber coupled connector.

Description of drawings

Fig. 1 is the schematic perspective view of the holding unit that provides of first embodiment of the invention.

Fig. 2 is the decomposing schematic representation of the holding unit among Fig. 1.

Fig. 3 is the schematic perspective view of the breasting part of the holding unit among Fig. 1.

Fig. 4 is the schematic perspective view that the holding unit fixing blind hole die among Fig. 1 is gone into son.

Fig. 5 is that the web member traction breasting part among Fig. 1 is gone into the schematic perspective view of son to insert the blind hole die.

Fig. 6 is that the holding unit among Fig. 1 fixes the schematic perspective view that the blind hole die is gone into son.

Fig. 7 is that the holding unit that second embodiment of the invention provides fixes the schematic perspective view that the blind hole die is gone into son.

The main element symbol description

Holding unit

10,30

Housing 12

Host cavity 120,320

First wall 121,321

Second wall 122

The 3rd wall 123,323

Wall 124

Through hole 125

Accepting groove 126

Groove 127

Outside surface 128

Breasting

part

14,34

Body 140

First 141,341

Bearing and leaning portion 142

Second 143

Guidance part 144,344

Containing cavity 145,345

Elastic 146,346

Internal thread 147

Connecting portion 148,348

Web member 16

Grip part 162

External thread 163

Trunk portion 164

The blind hole die is gone into son 20

Embodiment

To be described in further detail embodiment of the present invention below in conjunction with accompanying drawing.

See also Fig. 1, be the holding unit 10 that first embodiment of the invention provides, its four blind hole dies that are used for fixing optical fiber coupled connector mould are gone into sub 20 (Fig. 4 shows).This holding unit 10 comprises a housing 12, a breasting part 14 and a web member 16.

See also Fig. 2 and Fig. 3, this housing 12 is for having the rectangle frame of hollow host cavity 120.This housing 12 comprises first wall 121, second wall 122, the 3rd wall 123 and the wall 124 that joins successively.This first wall 121 is parallel relative with the 3rd wall 123.This second wall 122 is parallel relative with this wall 124.This first wall 121 roughly offers a through hole 125 in the centre position.This first wall 121 offers four accepting grooves 126 that are communicated with this host cavity 120 in four corners.The 3rd wall 123 offers four and goes into the strip groove 127 that son matched 20 (Fig. 4 shows) with described four blind hole dies.

This breasting part 14 is contained in this host cavity 120.This breasting part 14 comprises a body 140, four bearing and leaning portion 142, four guidance parts 144, four elastic 146 and connecting portions 148.

This body 140 comprises relative first 141 and second 143.This first 141 relative with this first wall 121.This second 143 relative with the 3rd wall 123.

These four bearing and leaning portion 142 are from this second 143 extension, and this bearing and leaning portion 142 is gone into sub 20 (Fig. 4 shows) with this blind hole die and is matched, promptly four strip grooves 127 of these four bearing and leaning portion 142 and this are corresponding, and four strip grooves of these four bearing and leaning portion 142 and this, 127 common four containing cavities 145 (Fig. 5 shows) that form are gone into sub 20 (Fig. 4 shows) with ccontaining described four blind hole dies.

These four guidance parts 144 extend from these four corners of first 141, and four accepting grooves 126 of these four guidance parts 144 and this are corresponding.These four guidance parts 144 are contained in the corresponding accepting groove 126 and with the bottom interval of accepting groove 126 certain distance are arranged.

These four elastic 146 are sheathed on respectively on these four guidance parts 144, and an end of each elastic 146 is connected in this first 141, and the other end is connected in the bottom of this accepting groove 126.In the present embodiment, this elastic 146 is a compression spring.

This connecting portion 148 roughly is positioned at the centre position of this body 140 and corresponding with this through hole 125.In the present embodiment, this connecting portion 148 is the hollow tube-shape projection of extending from this first 141, and this connecting portion 148 can pass this through hole 125.The inwall of this connecting portion 148 is provided with internal thread 147.

This web member 16 comprises a grip part 162 and the trunk portion 164 of extending from this grip part 162.This trunk portion 164 is provided with external thread 163.This trunk portion 164 is passed this through hole 125, and this external thread 163 screws togather with this internal thread 147 so that this web member 16 is connected with this connecting portion 148.

Be appreciated that this web member 16 is not limited to be connected with this connecting portion 148 by screw-in version in the present embodiment, can also be connected with this connecting portion 148 by engaging mode or gummed mode.

When assembling this holding unit 10, earlier this breasting part 14 is inserted in these host cavities 120, thereby and the bottom that is glued at this accepting groove 126 of the end by this elastic 146 this breasting part 14 is fixedly arranged in this host cavity 120.Then, thus this web member 16 passes this through hole 125 is connected the assembling of finishing this holding unit 10 with this connecting portion 148.This holding unit 10 is when original state, and this elastic 146 is towards oppressing this body 140 near the direction of the 3rd wall 123, and makes this grip part 162 contact at the outside surface 128 of this first wall 121.

See also Fig. 2, Fig. 4 to Fig. 6, use this this blind hole die of holding unit 10 fixings to go at sub 20 o'clock, hold these grip part 162 courts earlier and draw, thereby make this body 140 towards moving to increase the volume of containing cavity 145 near the direction of this first wall 121 away from the direction of this outside surface 128.At this moment, this elastic 146 and this guidance part 144 are contained in this accepting groove 126 fully, and this first 141 contacts at this first wall 121, and this trunk portion 164 exposes from outside surface 128, and this connecting portion 148 is contained in this through hole 125 fully.Then, this blind hole die being gone into son 20 inserts in the containing cavity 145.Then, decontrol this grip part 162, then this body 140 of this elastic 146 compressings drives these grip parts 162 towards contacting at the outside surface 128 of this first wall 121 near the direction motion of the 3rd wall 123 once more until this grip part 162, and this breasting part 14 and the 3rd wall 123 were gone into this blind hole die 20 jointly and fixed this moment.

The holding unit 10 of present embodiment utilizes bearing and leaning portion 142 and the containing cavity 145 ccontaining blind hole dies that housing 12 forms to go into son 20, and utilize elastic 146 these bodies 140 of compressing closely to be contained in this containing cavity 145 this blind hole die is gone into son 20, on the one hand assembling blind hole die go into son 20 when entering in the holding unit 10 elastic 146 can bounce back to go into son 20 to the blind hole die and reserve greater room, thereby can not cause the blind hole die to go into the fracture of son 20; Elastic 146 can be oppressed this

body

140 and 20 closely is contained in this containing cavity 145 this blind hole die is gone into son on the other hand, thereby avoid the blind hole die go into the son 20 with housing 12 between gapped and the generation deflection, make blind hole and the concentricity between the optical lens after the moulding higher, and optical fiber can be fixed in the better position before the optical lens, thereby guarantees the accuracy rate and the efficient of the optical signal transmission of optical fiber coupled connector.

See also Fig. 7, the holding unit 30 that provides for second embodiment of the invention, the holding unit 30 of present embodiment and the difference of the holding unit 10 in first embodiment are: this holding unit 30 does not comprise web member, correspondingly, do not offer through hole on the first wall 321 yet, the end that this connecting portion 348 is a compression spring and this connecting portion 348 is fixed on this first 341, and the other end contacts on this first wall 321.

Use this this blind hole die of holding unit 30 fixings to go at sub 20 o'clock, this breasting part 34 of compressing moves with the volume of increase containing cavity 345 towards the direction near this first wall 321 in host cavity 320 earlier.At this moment, this elastic 346 and this guidance part 344 are contained in the accepting groove (figure does not show) fully, and this first 341 contacts at this first wall 321.Then, this blind hole die being gone into son 20 inserts in the containing cavity 345.Then, decontrol this breasting part 34, then this elastic 346 these breasting parts 34 of compressing fix towards jointly this blind hole die being gone into son 20 near the direction motion of the 3rd wall 323 until this breasting part 34 and the 3rd wall 323.

Being appreciated that the present invention is not limited to that this connecting portion 348 is a compression spring in the present embodiment, can also be that this breasting part 34 does not comprise connecting portion 348.It is identical to use the beneficial effect that the holding unit 30 fixing blind hole dies of second embodiment go into son 20 and the holding unit 10 fixing blind hole dies of aforesaid first embodiment to go into sub 20 beneficial effect, and further, because this holding unit 30 has omitted web member, do not offer through hole on the first wall 321 yet, thereby simplified the structure of holding unit 30, make simply, save cost.

Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection domain that all should belong to claim of the present invention with distortion.

Claims

1. holding unit, its blind hole die that is used for fixing optical fiber coupled connector mould is gone into son, it is characterized in that, this holding unit comprises a housing and a breasting part that is positioned at this host cavity with hollow host cavity, this breasting part comprises a body, a plurality of elastic, and at least one goes into the bearing and leaning portion that son cooperates with this blind hole die, this elastic and this at least one bearing and leaning portion lay respectively at the both sides of this body, this elastic contacts on this housing, this at least one bearing and leaning portion is relative with this housing and form at least one jointly with this housing and be used to accommodate the containing cavity that this blind hole die is gone into son, and this elastic is oppressed this body and closely is contained in this containing cavity so that this blind hole die is gone into son.

2. holding unit as claimed in claim 1 is characterized in that, this housing is rectangle frame and comprises first wall, second wall, the 3rd wall and the wall that joins successively, and this first wall is relative with the 3rd wall, and this second wall is relative with this wall.

3. holding unit as claimed in claim 2, it is characterized in that, offer a plurality of accepting grooves corresponding on this first wall with this elastic, this elastic is contained in the corresponding accepting groove, offer at least one and the corresponding groove of this at least one supporting part on the 3rd wall, this at least one bearing and leaning portion is relative with the 3rd wall and form this at least one containing cavity jointly with this at least one groove.

4. holding unit as claimed in claim 3 is characterized in that, this elastic is a compression spring.

5. holding unit as claimed in claim 4, it is characterized in that, this body comprises relative first and second, this breasting part also comprises a plurality of from this first guidance part that extends, each elastic is sheathed on corresponding guidance part, and an end of this elastic is connected in this first, and the other end is connected in the bottom of this accepting groove, the bottom of this guidance part and this accepting groove separately, this at least one bearing and leaning portion is positioned at this second.

6. holding unit as claimed in claim 5 is characterized in that, this breasting part elasticity is connected on this first wall.

7. holding unit as claimed in claim 6 is characterized in that, this breasting part also comprises a connecting portion, and this connecting portion one end is connected on this first, and the other end is connected on this first wall.

8. holding unit as claimed in claim 5, it is characterized in that this first wall offers a through hole, this breasting part also comprise one corresponding with this through hole and from the connecting portion of this first extension, this holding unit also comprises a web member, and this web member passes this through hole and is connected with this connecting portion.

9. holding unit as claimed in claim 8, it is characterized in that, this web member comprises a grip part and the trunk portion of extending from this grip part, this trunk portion is passed this through hole and is connected with this connecting portion, go into son when closely being contained in this containing cavity when this blind hole die, this grip part contacts at the outside surface of this first wall.

10. holding unit as claimed in claim 9 is characterized in that, this trunk portion is connected with this connecting portion by screw-in version, gummed mode or engaging mode.