CN103465199B

CN103465199B - Adjustable vacuum clamp

Info

Publication number: CN103465199B
Application number: CN201310451489.XA
Authority: CN
Inventors: 石建东
Original assignee: SUNBLENCE TECHNOLOGIES Co Ltd
Current assignee: Guangdong Rui Xinyuan Technology Co. Ltd.
Priority date: 2013-09-27
Filing date: 2013-09-27
Publication date: 2016-06-08
Anticipated expiration: 2033-09-27
Also published as: CN103465199A

Abstract

The invention discloses a kind of Adjustable vacuum clamp, relate to clamping device. Adjustable vacuum clamp of the present invention includes the testboard for placing measured piece, the multiple pore unit being arranged on described testboard, the vacuum pipe communicated with the plurality of pore unit and the vacuum generator being connected with described vacuum pipe. Owing to Adjustable vacuum clamp of the present invention being provided with multiple pore unit on testboard, and communicated with multiple pore unit by vacuum pipe and to suck measured piece, the vacuum clip prodigiosin making the present invention is flexibly adapted to the measured piece of sizes, is firmly inhaled by measured piece and tests on testboard.

Description

Adjustable vacuum clamp

Technical field

The present invention relates to clamping device, more particularly, it relates to a kind of Adjustable vacuum clamp.

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). The demand of planar optical waveguide chip product is made to surge for optical communication field, China's broadband access in recent years and fiber-to-the-home development. Planar optical waveguide is the technology being fabricated on planar substrates by fiber waveguide, is realize optic communication Large Copacity and the integrated effective means of optical device. Slab guide can make the optical devices such as array waveguide grating, optical branching device, 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. In the least significant end of optic communication, fiber to the home stage, planar optical waveguide light splitter then provides current maximally effective EPON Broadband Access Scheme.

And in producing planar optical waveguide chip process, namely chip is tested by one of important step. In test process, it is ensured that the position of chip does not change, then carry out test job after needing to be clamped chip. The clamping force of clamping device common on market usually derives from the fastening force of screw thread, but easily planar optical waveguide light splitter chip is damaged. Current vacuum fixture, as the connector between measured piece and test equipment, has been widely used for various ATE.

In the related, when application vacuum fixture is tested, being first positioned on plummer by measured piece, open the air that vacuum switch is taken away in vacuum fixture, fixture gets final product adhesive, clamps measured piece and carries out test job. After test completes, closing vacuum switch, air enters vacuum fixture, and measured piece separates 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 uses dumb. But in practical work process, chip size is scarcely identical. When the chip that test size is bigger, owing to chip is excessive, less fixture cannot hold this chip, and chip is unstable in fixture, affects the test effect of chip.And chip size less time, chip can not cover all pores on plummer, causes losing vacuum, and chip is unstable thus affecting test effect.

Summary of the invention

The technical problem to be solved in the present invention is in that, it is provided that one is Adjustable vacuum clamp flexibly.

The technical solution adopted for the present invention to solve the technical problems is: a kind of Adjustable vacuum clamp of structure, including the testboard for placing measured piece, the multiple pore unit being arranged on described testboard, the vacuum pipe communicated with the plurality of pore unit and the vacuum generator being connected with described vacuum pipe.

Preferably, in above-mentioned Adjustable vacuum clamp, described vacuum pipe is additionally provided with removable sealing member near the end of described pore unit, to cut off described vacuum pipe and the pore unit communicated therewith.

Preferably, in above-mentioned Adjustable vacuum clamp, described vacuum pipe includes the multiple arms being connected respectively and the house steward connected by the plurality of arm with the plurality of pore unit, and described house steward is connected to described vacuum generator.

Preferably, in above-mentioned Adjustable vacuum clamp, described arm includes the first pipeline section and the second pipeline section, and the internal diameter of described first pipeline section is more than the internal diameter of described second pipeline section.

Preferably, in above-mentioned Adjustable vacuum clamp, described sealing member includes sealed screw, and described sealed screw includes head and threaded portion.

Preferably, in above-mentioned Adjustable vacuum clamp, described sealing member 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 clamp, described second pipeline section internal face is additionally provided with the thread segment relative with described threaded portion.

Preferably, in above-mentioned Adjustable vacuum clamp, described sealing member also includes gasket seal, and described gasket seal is arranged between described sealed screw and arm.

Preferably, in above-mentioned Adjustable vacuum clamp, the size of described pore unit is more than or equal to the size of described sealing member.

Preferably, in above-mentioned Adjustable vacuum clamp, described adjustable vacuum fixture is chip Adjustable vacuum clamp, and described measured piece is chip.

In sum, owing to taking technique scheme, the invention has the beneficial effects as follows:

Owing to Adjustable vacuum clamp of the present invention being provided with multiple pore unit on testboard, and communicated with multiple pore unit by vacuum pipe and to suck measured piece, the vacuum clip prodigiosin making the present invention is flexibly adapted to the measured piece of sizes, is firmly inhaled by measured piece and tests on testboard.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:

Fig. 1 is the schematic cross-section of one embodiment of the invention;

Fig. 2 is the structural representation of testboard in the embodiment of the present invention;

Fig. 3 is the structural representation of sealing member in the embodiment of the present invention.

Detailed description of the invention

In order to the technical characteristic of the present invention, purpose and effect are more clearly understood from, now comparison accompanying drawing describes the specific embodiment of the present invention in detail.

Fig. 1, Fig. 2 illustrate the Adjustable vacuum clamp in a preferred embodiment of the invention, can be applicable to the test process of optical communication technique midplane chip of light waveguide. This Adjustable vacuum clamp includes the testboard 1 for placing measured piece, the multiple pore unit 11 being arranged on testboard 1, the vacuum pipe 2 communicated with multiple pore unit 11 and the vacuum generator being connected with vacuum pipe 2.It is to be appreciated that this Adjustable vacuum clamp can also be applied in the fields such as communication, electronics, machine-building, automobile and packaging industry, it is typically used for the location of flat work pieces.

When measured piece carries out test job, measured piece is positioned on testboard 1, to be covered by the pore being arranged on testboard 1 unit 11; Then open vacuum generator, by the evacuating air in vacuum pipe 2, make measured piece be adsorbed on testboard 1, then carry out test job. Owing to the pore unit 11 on testboard 1 has multiple, when measured piece is bigger, measured piece also can firmly be inhaled on testboard 1 by vacuum pipe 2.

In certain embodiments, as it is shown in figure 1, vacuum pipe 2 is additionally provided with removable sealing member 3 near the end of pore unit 11, to cut off vacuum pipe 2 and the pore communicated therewith.

Measured piece is positioned on testboard 1 and is covered by the pore unit 11 being arranged on testboard 1, then is sealed by sealing member 3 by the vacuum pipe 2 of unlapped for measured piece pore unit 11 correspondence, thus increasing measured piece stability in test process. The sealing member 3 of vacuum pipe 2 corresponding below the pore unit 11 then covered by measured piece again is opened, and makes vacuum pipe 2 connect with pore unit 11; Finally open vacuum generator, by the evacuating air in vacuum pipe 2, make measured piece be adsorbed on testboard 1, carry out test job.

In certain embodiments, as it is shown in figure 1, vacuum pipe 2 includes the multiple arms 21 being connected respectively and the house steward 22 connected by multiple arms 21 with multiple pore unit 11, house steward 22 is connected to vacuum generator. When measured piece is less, the uncovered arm 21 corresponding to pore unit 11 is sealed by sealing member 3, without influence on normal test process; When measured piece bigger needs use many groups pore unit 11, only the sealing member 3 of the arm 21 corresponding to the pore unit 11 of needs use need to be unscrewed, measured piece firmly can be adsorbed on testboard 1, strengthen measured piece stability in test process.

It is to be appreciated that in certain embodiments, the radical of arm 21 is corresponding to the number of pore unit 11, a corresponding arm 21 of pore unit 11.

It is to be appreciated that in certain embodiments, as it is shown in figure 1, the axis of arm 21 is parallel to each other. Arm 21 arranged in parallel can facilitate house steward 22 it to be connected with vacuum generator.

In certain embodiments, as it is shown in figure 1, arm includes the first pipeline section 210 and the second pipeline section 211, and the internal diameter of the first pipeline section 210 is more than the internal diameter of the second pipeline section 211. The range size of the pore unit 11 that the internal diameter size of the first pipeline section 210 is corresponding is suitable.

In certain embodiments, as it is shown on figure 3, sealing member 3 includes sealed screw 31, sealed screw 31 includes 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, sealing member 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.

It is to be appreciated that in certain embodiments, the second pipeline section 211 internal face is additionally provided with the thread segment 212 corresponding with threaded portion 311.

It is to be appreciated that in certain embodiments, as shown in Figure 1, Figure 3, sealing member 3 also includes gasket seal 32, and this gasket seal 32 is arranged between sealed screw 31 and arm 21. Sealed screw 31 and gasket seal 32 can increase the sealing of arm 21.

It is to be appreciated that in certain embodiments, gasket seal 32 is rubber sheet gasket. It is to be appreciated that in certain embodiments, this gasket seal 32 can be also 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 sealing member 3. So that user can utilize instrument to pass through pore unit 11 and extend into the action that sealing member 3 is tightened or unscrewed by the first pipeline section 210. When the vacuum pipe 2 that need not use is sealed, tighten to seal this vacuum pipe 2 by sealing member 3 by pore unit 11 place.

In certain embodiments, adjustable vacuum fixture is chip Adjustable vacuum clamp, and measured piece is chip. This chip is optic communication planar optical waveguide chip.

The foregoing is only the preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement or improvement etc. made in the spirit and principles in the present invention, should be included in protection scope of the present invention.

Claims

1. an Adjustable vacuum clamp, it is characterized in that, the vacuum pipe (2) communicated with the plurality of pore unit (11) including the testboard (1) for placing measured piece, multiple pore unit (11) of being arranged on described testboard (1) and the vacuum generator being connected with described vacuum pipe (2); This Adjustable vacuum clamp is chip Adjustable vacuum clamp, is applied to the test process of optical communication technique midplane chip of light waveguide, and described measured piece is optic communication planar optical waveguide chip;

Described vacuum pipe (2) includes the multiple arms (21) being connected respectively and the house steward (22) connected by the plurality of arm (21) with the plurality of pore unit (11), and described house steward (22) is connected to described vacuum generator;

Described vacuum pipe (2) is additionally provided with removable sealing member (3) near the end of described pore unit (11), to cut off described vacuum pipe (2) and the pore unit (11) communicated therewith; The sealing member (3) of the arm (21) needed corresponding to the pore unit (11) used is unscrewed when use organizes pore unit (11) measured piece bigger needs;

Described sealing member (3) includes sealed screw (31), and described sealed screw (31) includes head (310) and threaded portion (311); Described sealing member (3) also includes gasket seal (32), and described gasket seal (32) is arranged between described sealed screw (31) and arm (21); Described gasket seal (32) is rubber sheet gasket, asbestos washer or synthetic resin gasket;

During test, the described pore unit (11) that described measured piece is positioned on described testboard (1) and will be arranged on described testboard (1) covers, again the described vacuum pipe (2) that unlapped for described measured piece described pore unit (11) is corresponding is sealed by described sealing member (3), thus increasing measured piece stability in test process; The described sealing member (3) of the described vacuum pipe (2) of described pore unit (11) the lower section correspondence then covered by described measured piece again is opened, and makes described vacuum pipe (2) connect with described pore unit (11); Finally open vacuum generator, by the evacuating air in described vacuum pipe (2), make described measured piece be adsorbed on described testboard (1), carry out test job.

2. Adjustable vacuum clamp according to claim 1, it is characterized in that, described arm (21) includes the first pipeline section (210) and the second pipeline section (211), and the internal diameter of described first pipeline section (210) is more than the internal diameter of described second pipeline section (211).

3. Adjustable vacuum clamp according to claim 2, it is characterized in that, described sealing member (3) is arranged in described arm (21), and described head (310) is positioned at the first pipeline section (210), described threaded portion (311) are positioned at the second pipeline section (211).

4. Adjustable vacuum clamp according to claim 3, it is characterised in that described second pipeline section (211) internal face is additionally provided with the thread segment (212) relative with described threaded portion (311).

5. Adjustable vacuum clamp according to claim 1, it is characterised in that the size of described pore unit (11) is more than or equal to the size of described sealing member.