CN116000479A - Laser sealing clamp for microwave assembly and application method of laser sealing clamp - Google Patents

Abstract

The invention relates to a laser sealing clamp of a microwave assembly and a use method thereof, wherein the sealing clamp comprises a bottom plate and a pressing plate; the microwave component is placed on the bottom plate; the clamp plate is quartz glass material, and clamp plate both ends are connected with the bottom plate through the connecting piece, and can realize the reciprocating of clamp plate to realize exerting pressure to microwave assembly's apron, realize compressing tightly and release. According to the invention, the conventional metal tool is replaced by the pressing plate made of quartz glass material, laser can directly penetrate through the quartz glass pressing plate, the loss is small, the welding effect is basically unaffected, the whole welding is directly realized, the laser sealing process is simplified, and the sealing efficiency is greatly improved; the laser sealing device has the advantages of simple integral structure, good universality, suitability for laser sealing of modules such as microwave components, high flexibility, high reliability, high efficiency and strong practicability.

Description

A laser sealing jig for microwave components and its use method

technical field

The invention relates to the technical field of laser sealing, in particular to a microwave component laser sealing jig and a method for using the same.

Background technique

For microwave components, in order to achieve isolation between channels, flexible conductive materials are often filled between the cover plate and the partition wall. Therefore, during laser sealing, it is necessary to apply pressure to the cover plate to ensure that the cover plate and the partition wall fit together to prevent signal leakage.

For conventional welding, use a metal pressing block to press the cover plate, perform local positioning welding on the weld seam, remove the metal pressing block after the positioning welding is completed, and the disassembly of the pressing block is mostly completed in the welding chamber, which is time-consuming, and finally along the microwave assembly The welding seam is integrally welded, and the operation efficiency is low.

Contents of the invention

Aiming at the above-mentioned shortcomings in the existing production technology, the applicant provides a laser sealing jig for microwave components and its use method, so as to realize the laser sealing operation of microwave components with high flexibility, high reliability and high efficiency.

The technical scheme adopted in the present invention is as follows:

A laser sealing fixture for a microwave component, comprising:

The bottom plate, on which the microwave components are placed;

The pressing plate is made of quartz glass. Both ends of the pressing plate are connected to the bottom plate through connecting pieces, and the pressing plate can move up and down to realize pressure on the cover plate of the microwave component, and realize pressing and releasing.

As a further improvement of the above technical solution:

The pressing plate is made of quartz glass, through holes are arranged at both ends of the pressing plate, and threaded holes corresponding to the through holes are arranged on the bottom plate, and the pressing plate realizes the compression of the cover plate of the microwave component through fastening bolts and pillars.

A gasket is arranged between the fastening bolt and the pressing plate to relieve the pressure between the fastening bolt and the pressing plate and prevent the pressing plate from breaking.

The gasket is made of polytetrafluoroethylene.

It also includes a pillar, one end of which is fixed under the pressure plate, and the other end exerts pressure on the cover plate of the microwave assembly.

The pillar is made of acrylic material, and the upper end of the pillar is fixed under the pressure plate by gluing.

The number of the pillars is at least 2, and the at least 2 pillars are equidistantly distributed under the pressing plate.

A groove corresponding to the microwave component is arranged on the bottom plate, and the bottom of the microwave component is embedded in the groove.

The bottom plate is also provided with a positioning plate, and the positioning plate is fixed on the bottom plate by screws; a limiting groove is arranged on the positioning plate, and the limiting groove is used for limiting and fixing the position of the microwave component.

A laser sealing tool for microwave components includes the above-mentioned sealing fixture and a base, and the sealing fixtures are fixed on the base in an array to realize batch welding operations.

As a further improvement of the above technical solution:

The base is provided with a fixing groove, and the sealing fixture is fixed in the fixing groove.

The method for using the laser sealing jig for the microwave component includes the following steps:

First place the microwave component in the groove on the bottom plate, and fix the box of the microwave component through the positioning plate;

Tighten the fastening bolts to drive the pressure plate and the pillar to press the cover plate of the microwave component to ensure that the cover plate fits the box body;

Integral welding along laser welded seams of microwave components.

The beneficial effects of the present invention are as follows:

In the present invention, the pressing plate of quartz glass material is used to replace the conventional metal tooling. The laser can directly penetrate the pressing plate of quartz glass with less loss, basically has no influence on the welding effect, directly realizes the overall welding, simplifies the laser sealing process, and greatly improves the sealing efficiency; The overall structure is simple, has good versatility, is suitable for laser sealing of modules such as microwave components, and has high flexibility, high reliability, high efficiency and strong practicability.

The present invention also includes the following advantages:

(1) The height of the quartz glass pressing plate is raised through the pillar of acrylic material to reduce the damage of the laser heat to the quartz glass pressing plate during laser welding and prolong the life of the quartz glass pressing plate.

(2) Use PTFE gaskets to relieve the pressure between the fastening bolts and the quartz glass pressure plate to prevent the quartz glass pressure plate from breaking.

(3) The sealing tool fixes the sealing fixtures on the base in an array arrangement to realize batch welding of microwave components and greatly improve efficiency.

Description of drawings

Fig. 1 is a top view of a laser sealing jig for microwave components in the present invention.

Fig. 2 is a front view of a laser sealing jig for microwave components in the present invention.

Fig. 3 is a top view of the microwave component laser sealing tool in the present invention.

Among them: 100, bottom plate; 200, pressure plate; 300, pillar; 400, fastening bolt; 410, gasket; 500, positioning plate; 510, screw; 600, base; 710, cover plate; 720, box body; 730, Laser welded seams.

Detailed ways

The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, the microwave assembly laser sealing fixture of the present embodiment includes a base plate 100 and a pressing plate 200; the microwave assembly is placed on the base plate 100; connected, and the pressure plate 200 can move up and down, so as to apply pressure to the cover plate 710 of the microwave assembly, and realize compression and release. Both ends of the pressure plate 200 are provided with through holes, and the bottom plate 100 is provided with threaded holes corresponding to the through holes. The pressure plate 200 is used to compress the cover plate 710 of the microwave component by fastening the bolts 400 and the pillars 300 .

A washer 410 is provided between the fastening bolt 400 and the pressing plate 200 to relieve the pressure between the fastening bolt 400 and the pressing plate 200 and prevent the pressing plate 200 from breaking.

Further, the gasket 410 is made of polytetrafluoroethylene, so as to relieve the pressure between the fastening bolt 400 and the pressure plate 200 , prevent the pressure plate 200 from breaking, and prolong the service life of the pressure plate 200 .

It also includes a pillar 300, one end of the pillar 300 is fixed under the pressure plate 200, and the other end presses the cover plate 710 of the microwave assembly to reduce the damage of the laser heat to the pressure plate 200 during laser welding and prolong the service life of the pressure plate 200.

The pillar 300 is made of acrylic material, and the upper end of the pillar 300 is fixed under the pressing plate 200 by means of glue.

The number of pillars 300 is at least two, and at least two pillars 300 are equally spaced under the pressing plate 200 .

The bottom plate 100 is provided with a groove corresponding to the microwave component, and the bottom of the microwave component is embedded in the groove.

The bottom plate 100 is also provided with a positioning plate 500, which is fixed on the bottom plate 100 by screws 510; the positioning plate 500 is provided with a limiting groove, which is used to limit and fix the position of the microwave component.

The connection between the microwave component cover plate 710 and the box body 720 is a laser welding seam 730 , and the area of the pressing plate 200 is larger than the laser welding seam 730 , that is, the pressing plate 200 covers the laser welding seam 730 .

The working principle of the laser sealing jig for the above-mentioned microwave components: first place the microwave component in the groove on the bottom plate 100, fix the box body 720 of the microwave component through the positioning plate 500, and then tighten the fastening bolts to drive the pressure plate 200 and the pillar 300 Apply pressure to the cover plate 710 of the microwave component to ensure that the cover plate 710 and the box body 720 fit together, and finally carry out integral welding along the laser welding seam 730 of the microwave component, which greatly improves the welding efficiency.

As shown in FIG. 3 , the laser sealing tool for microwave components in this embodiment includes the above-mentioned sealing jig and base 600 , and the sealing jigs are fixed on the base 600 in an array to realize batch welding operations and greatly improve efficiency.

The base 600 is provided with a fixing groove, and the sealing jig is fixed in the fixing groove, so as to ensure the stable fixing of the sealing jig and improve the precision of laser welding.

The above description is an explanation of the present invention, not a limitation of the invention. For the limited scope of the present invention, please refer to the claims. Within the protection scope of the present invention, any form of modification can be made.

Claims (10)

1. A laser sealing fixture for microwave components, characterized in that it comprises: A bottom plate (100), on which the microwave component is placed; The pressing plate (200) is made of quartz glass, the two ends of the pressing plate (200) are connected to the bottom plate (100) through connecting pieces, and the pressing plate (200) can move up and down, so as to exert pressure on the cover plate (710) of the microwave component , to achieve compression and release. 2. microwave component laser sealing clamp as claimed in claim 1, is characterized in that, described pressing plate (200) two ends are provided with through hole, and base plate (100) is provided with the threaded hole corresponding with through hole, pressing plate ( 200) Realize pressing the cover plate (710) of the microwave component by fastening the bolt (400). 3. The laser sealing jig for microwave components according to claim 2, characterized in that a gasket (410) is arranged between the fastening bolt (400) and the pressure plate (200) to relieve the tension of the fastening bolt (400). The pressure between the pressing plate (200) prevents the pressing plate (200) from breaking. 4. The laser sealing jig for microwave components according to claim 3, characterized in that, the gasket (410) is made of polytetrafluoroethylene. 5. The laser sealing jig for microwave components according to claim 1, further comprising a pillar (300), one end of which is fixed under the pressure plate (200), and the other end presses against the cover plate (710) of the microwave component. 6. The laser sealing jig for microwave components according to claim 5, characterized in that, the pillar (300) is made of acrylic material, and the upper end of the pillar (300) is fixed below the pressure plate (200) by gluing; The number of the pillars (300) is at least 2, and the at least 2 pillars (300) are equidistantly distributed under the pressing plate (200). 7 . The laser sealing jig for microwave components according to claim 1 , wherein a groove corresponding to the microwave component is provided on the bottom plate ( 100 ), and the bottom of the microwave component is embedded in the groove. 7 . 8. The laser sealing jig for microwave components according to claim 1, characterized in that, the base plate (100) is also provided with a positioning plate (500), and the positioning plate (500) is fixed on the base plate (100) by screws (510). ); the positioning plate (500) is provided with a limit slot, and the limit slot is used to limit and fix the position of the microwave component. 9. A microwave component laser sealing tool, characterized in that it comprises the microwave component laser sealing jig and base (600) according to any one of claims 1-8, and the sealing jigs are fixed on the base (600) in an array ) to achieve batch welding operations. 10. The method for using the microwave component laser sealing jig according to any one of claims 1-8, characterized in that it comprises the following steps: First place the microwave component on the groove on the bottom plate (100), and fix the box body (720) of the microwave component through the positioning plate (500); Tighten the fastening bolts (400) to drive the pressure plate (200) and the pillar (300) to apply pressure to the cover plate (710) of the microwave component to ensure that the cover plate (710) fits the box body (720); Integral welding is performed along the laser weld (730) of the microwave assembly.

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