CN205603455U - Level pressure clamping device is used in optical fiber perform production - Google Patents
Level pressure clamping device is used in optical fiber perform production Download PDFInfo
- Publication number
- CN205603455U CN205603455U CN201620434973.0U CN201620434973U CN205603455U CN 205603455 U CN205603455 U CN 205603455U CN 201620434973 U CN201620434973 U CN 201620434973U CN 205603455 U CN205603455 U CN 205603455U
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- holding bar
- level pressure
- clamping device
- claw
- clamping part
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Abstract
The utility model discloses a level pressure clamping device is used in optical fiber perform production, the stick is controlled at prefabricated excellent both ends butt fusion respectively, relates to optical fiber perform and makes technical field, and this level pressure clamping device include: two clamping parts, two the clamping part is the centre gripping respectively prefabricated excellent both ends control the stick, two control the stick keeps away from prefabricated stick one side all is equipped with a rotating base, the gliding connection of clamping part rotating base, hydraulic means, hydraulic means includes the pneumatic cylinder, the pneumatic cylinder with the clamping part directly links to each other, the hydraulic means drive the radial centre gripping of clamping part control the stick. The utility model discloses can control the stick by the level pressure centre gripping, effectively prevent to control the stick and because of the condition that the thermal energy cracked takes place, have simple structure, convenient to use's advantage.
Description
Technical field
This utility model relates to apparatus for preparing optical fiber blanks technical field, is specifically related to a kind of light
Fine prefabricated rods produces uses level pressure clamping device.
Background technology
OVD method (Outside Vapor Deposition) is at VAD method (Vapor-phase
Axial Deposition) the glass mandrel surface deposit glass microgranule that produces, for support glass
Plug, needs the two ends welding glass holding bar at glass plug, is entering glass mandrel surface
During row deposition, need to grip holding bar by chuck and clamp with fixing glass plug, chuck
Glass holding bar, rotates and carries out glass mandrel surface deposition.In deposition process,
Need to use flammable gas to carry out high-temperature heating, now chuck generation thermal expansion, glass plate rod
Also there is thermal expansion, but be to be rigidly connected between chuck and glass holding bar, and both are swollen
Swollen coefficient is different, causes holding bar easily to be cracked by excessive pressure loading, holding bar,
Holding bar is caused to rupture so that glass plug falls damage or forms substandard products, and it is unnecessary to cause
Waste, increases Productive statistics cost.
Utility model content
For defect present in prior art, the purpose of this utility model is to provide a kind of light
Fine prefabricated rods produces uses level pressure clamping device, it is possible to level pressure clamping holding bar, effectively prevents from holding
The situation that rod cracks because of thermal expansion occurs, and has simple in construction, advantage easy to use.
For reaching object above, this utility model adopts the technical scheme that:
A kind of preform produces uses level pressure clamping device, the two ends of prefabricated rods welding handle respectively
Holding rod, this level pressure clamping device includes:
Two clamping parts, clamping part described in two clamps the described holding at described prefabricated rods two ends respectively
Rod；Two holding bars are equipped with a rotating base away from described prefabricated rods side, and described clamping part is sliding
The dynamic described rotating base of connection；
Hydraulic means, described hydraulic means includes hydraulic cylinder, described hydraulic cylinder and described clamping part
Being joined directly together, described hydraulic means drives described clamping part radially to clamp described holding bar.
On the basis of technique scheme, described clamping part includes at least two claws, described card
Pawl is circumferentially disposed along described holding bar, and described claw radially clamps described holding bar；
Described rotating base is provided with some and described claw towards the one side of described holding bar and joins
The chute closed, described claw is slidably mounted on described chute towards one end of described rotating base
In, described hydraulic cylinder is connected with described claw.
On the basis of technique scheme, described hydraulic means includes some piston hydraulics
Cylinder, petroleum pipeline and Hydraulic Station, described petroleum pipeline connects described hydraulic cylinder and described Hydraulic Station, often
The piston rod of hydraulic cylinder described in is all connected with claw described in.
On the basis of technique scheme, described petroleum pipeline is provided with swivel joint.
On the basis of technique scheme, described rotating base includes circular discs seat and chuck,
Described dish seat is fixing with described chuck to be connected, and described dish seat, described chuck and described holding bar are same
Axle is arranged, and described chuck arranges described chute towards the side of described holding bar.
On the basis of technique scheme, on described chuck, uniform intervals is provided with described in three and blocks
Pawl.
Compared with prior art, the utility model has the advantage of:
1) a kind of preform production level pressure clamping device in this utility model includes folder
Holding portion, rotating base and hydraulic means, hydraulic means drives clamping part to rotate against base and slides,
Regulation clamping part and the clamping degree of holding bar, when holding bar and clamping part expanded by heating, hydraulic pressure
Rollback buffering in device certain limit, it is achieved clamping part, with certain pressure clamping holding bar, has
The situation that effect avoids holding bar to crack occurs, and has simple in construction, reliable operation and operation
Advantage smoothly.
2) clamping of a kind of preform production level pressure clamping device in this utility model
Portion includes that at least two claw, claw annular are arranged in the periphery of holding bar, applies holding bar
Radial pressure, and the pawl body engaging of claw is with on holding bar, effectively increases claw and holding bar
Contact area, increase engaging dynamics, the lifting surface area of holding bar is relatively big, and engaging dynamics is uniform,
Decrease the damage that holding bar causes because of discontinuity.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of this utility model embodiment；
Fig. 2 is the side-looking structural representation of this utility model embodiment.
In figure: 10-rotating base, 11-dish seat, 12-chuck, 13-chute, 20-clamping part,
21-claw, 22-hydraulic cylinder, 23-petroleum pipeline, 24-Hydraulic Station, 25-swivel joint, 30-
Prefabricated rods, 31-holding bar, 32-sedimentary, 33-blowtorch.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Seeing shown in Fig. 1 and Fig. 2, this utility model embodiment provides a kind of preform raw
Producing and use level pressure clamping device, the two ends of prefabricated rods 30 welding holding bar 31 respectively, this level pressure is pressed from both sides
Holding device clamping holding bar 31, the side of prefabricated rods 30 is provided with blowtorch 33, blowtorch 33 level
Mobile, after blowtorch 33 sprays, sedimentary is formed on the surface of prefabricated rods 20, this level pressure clamps
Device includes:
Two clamping parts 20, two clamping parts 20 clamp the holding bar at the two ends of prefabricated rods 30 respectively
31, clamping part 20 applies to be perpendicular to the chucking power of holding bar 31 axis to holding bar 31.Folder
Holding portion 20 and include three claws 21, claw 21 is along the equidistant spacer ring of outer surface of holding bar 31
To layout, when holding bar 31 is positioned under gripping orientation, the pawl body of claw 21 and holding bar
31 engagings.
Two rotating bases 10, rotating base 10 is respectively arranged on holding bar 31 away from prefabricated rods 30
One end outside, rotating base 10 with drive motor outfan is connected, drive motor driving
Rotating base 10 rotates, and rotating base 10 drives prefabricated rods 30 to rotate.Rotating base 10 wraps
Including circular discs seat 11 and chuck 12, the diameter of dish seat 11 is more than the diameter of chuck 12, dish seat
11, chuck 12 and holding bar 31 are coaxially disposed.The one side of dish seat 11 and the one of chuck 12
Side is fixing to be connected, and chuck 12 arranges three road chutes 13, phase towards the side of holding bar 31
Even forming 120 ° of angles between chute 13, one end of claw 21 is located in chute 13, each
The corresponding chute 13 of claw 21, and the movement locus of position and claw 21 that chute 13 is arranged
Unanimously.
Hydraulic means, hydraulic means includes three piston-type hydraulic cylinders 22, petroleum pipeline 23 and hydraulic pressure
Standing 24, petroleum pipeline 23 connects hydraulic cylinder 22 and Hydraulic Station 24, the piston of each hydraulic cylinder 22
Bar is vertical with the pawl body of a claw 21 to be connected, the telescopic direction of hydraulic cylinder 22 piston rod and holding
The axis of rod 31 is vertical.Petroleum pipeline 23 includes the branch being connected respectively with each hydraulic cylinder 22
Pipeline and the main pipe rail being connected with Hydraulic Station 24, pass through four-way between branch line and main pipe rail
Joint is connected, and main pipe rail is provided with swivel joint 25 at four-way connection, the most anti-
Only petroleum pipeline 23 rotates kink with the rotation of rotating base 10.Claw 21 clamping holding bar
31, when, after claw 21 and holding bar 31 expanded by heating, hydraulic cylinder 22 is in packing state,
Claw 21 bounces back to away from holding bar 31 side.
This utility model is not only limited to above-mentioned preferred forms, and anyone is at this utility model
Enlightenment under all can draw other various forms of products, no matter but in its shape or structure make
Any change, every have same or like with this utility model as technical scheme, all at it
Within protection domain.
Claims (6)
1. preform produces and uses a level pressure clamping device, the two ends of prefabricated rods (30)
Welding holding bar (31) respectively, it is characterised in that this level pressure clamping device includes:
Two clamping parts (20), clamping part described in two (20) clamps described prefabricated rods (30) respectively
The described holding bar (31) at two ends；Two holding bars (31) are away from described prefabricated rods (30)
Side is equipped with a rotating base (10), the described rotation of connection that described clamping part (20) slides
Base (10)；
Hydraulic means, described hydraulic means includes hydraulic cylinder (22), described hydraulic cylinder (22)
Being joined directly together with described clamping part (20), described hydraulic means drives described clamping part (20)
Radially clamp described holding bar (31).
2. a kind of preform as claimed in claim 1 produces and uses level pressure clamping device,
It is characterized in that: described clamping part (20) includes at least two claws (21), described claw (21)
Circumferentially disposed along described holding bar (31), described claw (21) radially clamps described holding bar
(31)；
Described rotating base (10) towards the one side of described holding bar (31) be provided with some with
The chute (13) that described claw (21) coordinates, described claw (21) is towards at the bottom of described rotation
In one end of seat (10) is slidably mounted on described chute (13), described hydraulic cylinder (22) with
Described claw (21) is connected.
3. a kind of preform as claimed in claim 2 produces and uses level pressure clamping device,
It is characterized in that: described hydraulic means includes some piston-type hydraulic cylinders (22), petroleum pipeline (23)
With Hydraulic Station (24), described petroleum pipeline (23) connects described hydraulic cylinder (22) and described liquid
Pressure station (24), the piston rod of each described hydraulic cylinder (22) all with claw described in (21)
Connect.
4. a kind of preform as claimed in claim 3 produces and uses level pressure clamping device,
It is characterized in that: on described petroleum pipeline (23), be provided with swivel joint (25).
5. a kind of preform as claimed in claim 2 produces and uses level pressure clamping device,
It is characterized in that: described rotating base (10) includes circular discs seat (11) and chuck (12),
Described dish seat (11) and described chuck (12) are fixing to be connected, described dish seat (11), described
Chuck (12) and described holding bar (31) are coaxially disposed, and described chuck (12) is towards described
The side of holding bar (31) arranges described chute (13).
6. a kind of preform as claimed in claim 5 produces and uses level pressure clamping device,
It is characterized in that: the upper uniform intervals of described chuck (12) is provided with claw described in three (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620434973.0U CN205603455U (en) | 2016-05-13 | 2016-05-13 | Level pressure clamping device is used in optical fiber perform production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620434973.0U CN205603455U (en) | 2016-05-13 | 2016-05-13 | Level pressure clamping device is used in optical fiber perform production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205603455U true CN205603455U (en) | 2016-09-28 |
Family
ID=56967119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620434973.0U Active CN205603455U (en) | 2016-05-13 | 2016-05-13 | Level pressure clamping device is used in optical fiber perform production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205603455U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108467194A (en) * | 2018-03-14 | 2018-08-31 | 长飞光纤光缆股份有限公司 | Automatic clamping device for bushing pipe in PCVD equipment |
| CN113698089A (en) * | 2021-08-02 | 2021-11-26 | 浙江富通光纤技术有限公司 | Machining method of core rod |
| CN113828816A (en) * | 2021-10-25 | 2021-12-24 | 武汉市工程科学技术研究院 | Slender pipe clamping chuck |
-
2016
- 2016-05-13 CN CN201620434973.0U patent/CN205603455U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108467194A (en) * | 2018-03-14 | 2018-08-31 | 长飞光纤光缆股份有限公司 | Automatic clamping device for bushing pipe in PCVD equipment |
| CN108467194B (en) * | 2018-03-14 | 2020-09-29 | 长飞光纤光缆股份有限公司 | Automatic clamping device for liner tube in PCVD (plasma chemical vapor deposition) equipment |
| CN113698089A (en) * | 2021-08-02 | 2021-11-26 | 浙江富通光纤技术有限公司 | Machining method of core rod |
| CN113698089B (en) * | 2021-08-02 | 2022-12-27 | 浙江富通光纤技术有限公司 | Machining method of core rod |
| CN113828816A (en) * | 2021-10-25 | 2021-12-24 | 武汉市工程科学技术研究院 | Slender pipe clamping chuck |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |