CN203579447U - Adjustable vacuum fixture - Google Patents
Adjustable vacuum fixture Download PDFInfo
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- CN203579447U CN203579447U CN201320603421.4U CN201320603421U CN203579447U CN 203579447 U CN203579447 U CN 203579447U CN 201320603421 U CN201320603421 U CN 201320603421U CN 203579447 U CN203579447 U CN 203579447U
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- vacuum
- vacuum fixture
- adjustable
- adjustable vacuum
- pipeline section
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Abstract
The utility model discloses an adjustable vacuum fixture, and relates to a clamping device. The adjustable vacuum fixture comprises a test bench, a plurality of air hole units, a vacuum pipeline and a vacuum generator, the test bench is used for placing tested parts, the air hole units are arranged on the test bench, the vacuum pipeline is communicated with the air hole units, and the vacuum generator is connected with the vacuum pipeline. As the air hole units are arranged on the test bench and the vacuum pipeline is communicated with the air hole units, the tested parts are closely absorbed, the adjustable vacuum fixture can flexibly adapt to the tested parts with various sizes, and the tested parts are firmly absorbed on the test bench and tested.
Description
Technical field
The utility model relates to clamping device, relates in particular to a kind of adjustable vacuum fixture.
Background technology
In communication, electronics, machine-building, automobile and packaging industry, often have the clamping requirement to flat work pieces (particularly small-sized plane workpiece).Take optical communication field as example, and China's broadband access in recent years and fiber-to-the-home development are surged the demand of planar optical waveguide chip product.Planar optical waveguide is that fiber waveguide is fabricated into the technology on planar substrates, is to realize the large capacity of optic communication and the integrated effective means of optical device.Slab guide can be made array waveguide grating, optical branching device, the optical devices such as multichannel adjustable optical attenuator, photoswitch.In the middle of optical communication network, the array waveguide grating that optical signal dependence planar optical waveguide is made is widely used for realizing wavelength-division multiplex to improve efficiency of transmission.At the least significant end of optic communication, Fiber to the home the stage, and planar optical waveguide light splitter provides the most effective EPON Broadband Access Scheme at present.
And in production planar optical waveguide chip processes, one of important step tests chip.In test process, guarantee that the position of chip does not change, after needing chip to clamp, carry out test job.On market, the clamping force of common clamping device normally derives from the fastening force of screw thread, but easily planar optical waveguide light splitter chip is damaged.Vacuum fixture, as the connector between measured piece and testing equipment, has been widely used in various ATEs at present.
In correlation technique, when application vacuum fixture is tested, first measured piece is positioned on plummer, to open vacuum switch and take the air in vacuum fixture away, fixture gets final product adhesive, clamps measured piece and carries out test job.After test completes, close vacuum switch, air enters vacuum fixture, and measured piece is separated with vacuum fixture.
This vacuum fixture is strict to the dimensional requirement of chip under test, and a kind of fixture is only suitable for the chip of a certain size, and vacuum fixture is used dumb.But in practical work process, chip size is scarcely identical.When the larger chip of test size, because chip is excessive, less fixture cannot hold this chip, and chip is unstable in fixture, affects the test effect of chip.And chip size hour, chip can not cover all pores on plummer, causes losing vacuum, thereby effect is tested in the unstable impact of chip.
Utility model content
The technical problems to be solved in the utility model is, a kind of fixture of adjustable vacuum is flexibly provided.
The utility model solves the technical scheme that its technical problem adopts:
An adjustable vacuum fixture, comprises testboard for placing measured piece, is arranged at a plurality of pores unit on described testboard, the vacuum pipe communicating with described a plurality of pores unit and the vacuum generator being connected with described vacuum pipe.
Preferably, in above-mentioned adjustable vacuum fixture, described vacuum pipe is also provided with removable seal near the end of described pore unit, with the pore unit that cuts off described vacuum pipe and communicate with it.
Preferably, in above-mentioned adjustable vacuum fixture, described vacuum pipe comprises a plurality of arms that are connected with described a plurality of pores unit respectively and the house steward that described a plurality of arms are communicated with, and described house steward is connected in described vacuum generator.
Preferably, in above-mentioned adjustable vacuum fixture, described arm comprises the first pipeline section and the second pipeline section, and the internal diameter of described the first pipeline section is greater than the internal diameter of described the second pipeline section.
Preferably, in above-mentioned adjustable vacuum fixture, described seal comprises sealed screw, and described sealed screw comprises head and threaded portion.
Preferably, in above-mentioned adjustable vacuum fixture, described seal is arranged in described arm, and described head is positioned at the first pipeline section, and described threaded portion is positioned at the second pipeline section.
Preferably, in above-mentioned adjustable vacuum fixture, described the second pipeline section internal face is also provided with the thread segment relative with described threaded portion.
Preferably, in above-mentioned adjustable vacuum fixture, described seal also comprises gasket seal, and described gasket seal is arranged between described sealed screw and arm.
Preferably, in above-mentioned adjustable vacuum fixture, the size of described pore unit is more than or equal to the size of described seal.
Preferably, in above-mentioned adjustable vacuum fixture, described adjustable vacuum fixture is chip adjustable vacuum fixture, and described measured piece is chip.
In sum, owing to having taked technique scheme, the beneficial effects of the utility model are:
In the utility model adjustable vacuum fixture, on testboard, be provided with a plurality of pores unit, and communicate to suck measured piece by vacuum pipe with a plurality of pores unit, make vacuum clip prodigiosin of the present utility model adapt to neatly the measured piece of sizes, measured piece is firmly inhaled on testboard and tested.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the schematic cross-section of an embodiment of the utility model;
Fig. 2 is the schematic cross-section of testboard in the utility model embodiment;
Fig. 3 is the structural representation of seal in the utility model embodiment.
The specific embodiment
For technical characterictic of the present utility model, object and effect being had more clearly, understand, now contrast accompanying drawing and describe the specific embodiment of the present utility model in detail.
Fig. 1, Fig. 2 show the adjustable vacuum fixture in preferred embodiment of the utility model, can be applicable to the test process of optical communication technique midplane chip of light waveguide.This adjustable vacuum fixture comprises testboard 1 for placing measured piece, is arranged at a plurality of pores unit 11 on testboard 1, the vacuum pipe 2 communicating with a plurality of pores unit 11 and the vacuum generator being connected with vacuum pipe 2.Understandably, this adjustable vacuum fixture can also be applied to, in the fields such as communication, electronics, machine-building, automobile and packaging industry, generally can be used for the location of flat work pieces.
When measured piece carries out test job, measured piece is positioned on testboard 1, so that the pore unit 11 being arranged on testboard 1 is covered; Then open vacuum generator, the air in vacuum pipe 2 is found time, measured piece is adsorbed on testboard 1, then carry out test job.Because the pore unit 11 on testboard 1 has a plurality ofly, when measured piece is larger, vacuum pipe 2 also can be firmly inhaled measured piece on testboard 1.
In certain embodiments, as shown in Figure 1, vacuum pipe 2 is also provided with removable seal 3 near the end of pore unit 11, with the pore that cuts off vacuum pipe 2 and communicate with it.
Measured piece is positioned on testboard 1 the pore unit 11 being arranged on testboard 1 is covered, then the vacuum pipe 2 of the unlapped pore of measured piece unit 11 correspondences is sealed by seal 3, thereby increases the stability of measured piece in test process.And then the seal 3 of the vacuum pipe 2 of the pore unit 11 below correspondences that measured piece has been covered opens, vacuum pipe 2 is communicated with pore unit 11; Finally open vacuum generator, the air in vacuum pipe 2 is found time, measured piece is adsorbed on testboard 1, carry out test job.
In certain embodiments, as shown in Figure 1, vacuum pipe 2 comprises a plurality of arms 21 that are connected with a plurality of pores unit 11 respectively and the house steward 22 that a plurality of arms 21 are communicated with, and house steward 22 is connected in vacuum generator.At measured piece hour, the corresponding arm 21 in not capped pore unit 11 seals by seal 3, can not affect normal test process; Measured piece is larger while need using many groups pore unit 11, the seal 3 of the corresponding arm 21 in pore unit 11 that only needs need be used be unscrewed, and measured piece firmly can be adsorbed on testboard 1, strengthens the stability of measured piece in test process.
Understandably, in certain embodiments, the number of the radical of arm 21 and pore unit 11 is corresponding, a corresponding arm 21 in pore unit 11.
Understandably, in certain embodiments, as shown in Figure 1, the axis of arm 21 is parallel to each other.The arm 21 being arranged in parallel can facilitate house steward 22 that it is communicated with vacuum generator.
In certain embodiments, as shown in Figure 1, arm comprises the first pipeline section 210 and the second pipeline section 211, and the internal diameter of the first pipeline section 210 is greater than the internal diameter of the second pipeline section 211.The range size of the big or small pore unit 11 corresponding with it of internal diameter of the first pipeline section 210 is suitable.
In certain embodiments, as shown in Figure 3, seal 3 comprises sealed screw 31, and sealed screw 31 comprises head 310 and threaded portion 311.Threaded portion 311 is for being tightly connected with vacuum pipe.
In certain embodiments, as shown in Figure 1, Figure 3, seal 3 is arranged in arm 21, and head 310 is positioned at the first pipeline section 210, and threaded portion 311 is positioned at the second pipeline section 211.
Understandably, in certain embodiments, the second pipeline section 211 internal faces are also provided with the thread segment corresponding with threaded portion 311 212.
Understandably, in certain embodiments, as shown in Figure 1, Figure 3, seal 3 also comprises gasket seal 32, and sealing pad 32 is arranged between sealed screw 31 and arm 21.Sealed screw 31 and gasket seal 32 can increase the sealing of arm 21.
Understandably, in certain embodiments, gasket seal 32 is rubber sheet gasket.Understandably, in certain embodiments, sealing pad 32 also can be asbestos washer or synthetic resin gasket etc.
In certain embodiments, the size of pore unit 11 is more than or equal to the size of seal 3.So that user can utilize instrument to extend into by pore unit 11 action that 210 pairs of seals 3 of the first pipeline section are tightened or unscrewed.When the vacuum pipe 2 that does not need to use is sealed, by 11 places, pore unit, seal 3 is tightened to seal this vacuum pipe 2.
In certain embodiments, adjustable vacuum fixture is chip adjustable vacuum fixture, and measured piece is chip.This chip is optic communication planar optical waveguide chip.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all any modifications of doing in spirit of the present utility model and principle, be equal to and replace or improvement etc., all should be included in protection domain of the present utility model.
Claims (10)
1. an adjustable vacuum fixture, it is characterized in that, comprise the testboard (1) for placing measured piece, the vacuum generator that is arranged at a plurality of pores unit (11) on described testboard (1), the vacuum pipe (2) communicating with described a plurality of pores unit (11) and is connected with described vacuum pipe (2).
2. adjustable vacuum fixture according to claim 1, it is characterized in that, described vacuum pipe (2) is also provided with removable seal (3) near the end of described pore unit (11), with the pore unit (11) that cuts off described vacuum pipe (2) and communicate with it.
3. adjustable vacuum fixture according to claim 2, it is characterized in that, described vacuum pipe (2) comprises a plurality of arms (21) that are connected with described a plurality of pores unit (11) respectively and the house steward (22) that described a plurality of arms (21) are communicated with, and described house steward (22) is connected in described vacuum generator.
4. adjustable vacuum fixture according to claim 3, is characterized in that, described arm (21) comprises the first pipeline section (210) and the second pipeline section (211), and the internal diameter of described the first pipeline section (210) is greater than the internal diameter of described the second pipeline section (211).
5. adjustable vacuum fixture according to claim 4, is characterized in that, described seal (3) comprises sealed screw (31), and described sealed screw (31) comprises head (310) and threaded portion (311).
6. adjustable vacuum fixture according to claim 5, it is characterized in that, described seal (3) is arranged in described arm (21), and described head (310) is positioned at the first pipeline section (210), and described threaded portion (311) are positioned at the second pipeline section (211).
7. adjustable vacuum fixture according to claim 6, is characterized in that, described the second pipeline section (211) internal face is also provided with the thread segment (212) relative with described threaded portion (311).
8. adjustable vacuum fixture according to claim 5, is characterized in that, described seal (3) also comprises gasket seal (32), and described gasket seal (32) is arranged between described sealed screw (31) and arm (21).
9. adjustable vacuum fixture according to claim 2, is characterized in that, the size of described pore unit (11) is more than or equal to the size of described seal.
10. according to the adjustable vacuum fixture described in any one in claim 1 to 9, it is characterized in that, this adjustable vacuum fixture is chip adjustable vacuum fixture, and described measured piece is chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320603421.4U CN203579447U (en) | 2013-09-27 | 2013-09-27 | Adjustable vacuum fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320603421.4U CN203579447U (en) | 2013-09-27 | 2013-09-27 | Adjustable vacuum fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203579447U true CN203579447U (en) | 2014-05-07 |
Family
ID=50577415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320603421.4U Expired - Fee Related CN203579447U (en) | 2013-09-27 | 2013-09-27 | Adjustable vacuum fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203579447U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465199A (en) * | 2013-09-27 | 2013-12-25 | 广东尚能光电技术有限公司 | Adjustable vacuum clamp |
| CN107740863A (en) * | 2017-10-20 | 2018-02-27 | 长光卫星技术有限公司 | Sealing frock for optical element with holes processing |
-
2013
- 2013-09-27 CN CN201320603421.4U patent/CN203579447U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465199A (en) * | 2013-09-27 | 2013-12-25 | 广东尚能光电技术有限公司 | Adjustable vacuum clamp |
| CN103465199B (en) * | 2013-09-27 | 2016-06-08 | 广东尚能光电技术有限公司 | Adjustable vacuum clamp |
| CN107740863A (en) * | 2017-10-20 | 2018-02-27 | 长光卫星技术有限公司 | Sealing frock for optical element with holes processing |
| CN107740863B (en) * | 2017-10-20 | 2019-09-13 | 长光卫星技术有限公司 | Sealing frock for optical element with holes processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20170927 |