CN221882953U - Leak detection tool for UB ceramic airtight packaging - Google Patents

Abstract

The utility model discloses a leak detection tool for UB ceramic airtight packaging, comprising a mounting base and a slide rail bracket, wherein the leak detection tool is mounted on the upper end surface of the mounting base, a packaging cavity is provided inside the leak detection tool, and the inner wall of the packaging cavity is mounted on the slide rail bracket. The utility model drives the rotation of a threaded rod by a connecting gear to realize sliding of a clamping plate along the inside of the slide rail bracket, and then when the clamping plate slides rightward, a UB ceramic airtight packaging component to be leak-detected is placed inside the packaging cavity, and then the UB ceramic airtight packaging component is squeezed and fixed through a protective plate of a rubber material through the sliding of the clamping plate, thereby ensuring the stability of the UB ceramic airtight packaging component during work, without friction and collision between each other, avoiding surface scratches, ensuring that UB devices are arranged in an orderly manner during the leak detection process, and improving work efficiency.

Description

A leak detection tool for UB ceramic airtight packaging

Technical Field

The utility model relates to the technical field of leakage detection of UB ceramic airtight packages, in particular to a leakage detection tool used for UB ceramic airtight packages.

Background Art

UB package is a kind of airtight package for low-power semiconductor discrete devices. It is popular among users due to its small size, light weight and high reliability. In order to ensure the packaging quality of the device, the sealing of the device needs to be tested during the production process. The sealing test is divided into helium mass spectrometry fine leak detection and double fluorine oil coarse leak detection. Helium mass spectrometry leak detection is to place the device in a high-pressure tank filled with helium to pressurize it, and then put it into a helium mass spectrometer to measure the leakage rate of the device. Double fluorine oil coarse leak detection is to first immerse the device in low-boiling point fluorine oil and pressurize it, and then place it in high-boiling point fluorine oil for leak detection.

However, when the existing leak detection tool for UB ceramic airtight packaging is working, the internal UB ceramic airtight packaging components are subjected to pressure, squeezed against each other and caused wear, and the components cannot be arranged in order. After the leak detection work is completed, the components need to be sorted one by one, which affects the work efficiency. Therefore, this case designs a leak detection tool for UB ceramic airtight packaging.

Utility Model Content

The utility model aims to provide a leak detection tool for UB ceramic airtight packaging, so as to solve the problem that the internal UB ceramic airtight packaging parts are easily deflected by pressure when the leak detection tool for UB ceramic airtight packaging is working, resulting in detection errors and wear caused by mutual collision.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a leak detection tool for UB ceramic airtight packaging, comprising a mounting base and a slide rail bracket, the upper end surface of the mounting base is installed with the leak detection tool, a packaging cavity is opened inside the leak detection tool, the inner wall of the packaging cavity is installed with the slide rail bracket, a driving gear is installed inside the slide rail bracket, a connecting gear is meshed inside the driving gear, a threaded rod is installed inside the connecting gear, a clamp is installed on the outer surface of the threaded rod, a stopper is arranged on the right side of the packaging cavity, a protective plate is installed on the inner wall of the stopper, a sealing groove is opened on the upper end surface of the leak detection tool, a cover plate is installed on the upper end of the leak detection tool, a sealing bolt is installed on the inner wall of the cover plate, threaded bolts are installed on the four ends of the cover plate, a positioning rod is installed on the left side of the upper end surface of the mounting base, and a leak detection tube is installed at one end of the leak detection tool.

Preferably, the threaded rod forms a rotating structure through a connecting gear and a driving gear, and the clamping plate forms a sliding structure through the threaded rod and a slide rail bracket.

Preferably, the protective plate is fixedly connected to the stopper, and the protective plate is made of rubber material.

Preferably, the leak detection tools are arranged in two groups, the two groups of leak detection tools are symmetrically distributed about the mounting base, and the packaging cavities are arranged in thirty groups.

Preferably, the cover plate is tightly fitted with the leak detection tooling via a sealing bolt and a sealing groove, and the cover plate is snap-fittedly connected to the positioning rod.

Preferably, the cover plate forms a detachable structure with the leak detection tooling through threaded bolts, and the threaded bolts are arranged in four groups.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model drives the threaded rod to rotate by connecting the gear, so that the clamp plate slides along the inside of the slide rail bracket, and then when the clamp plate slides to the right, the UB ceramic airtight seal to be leak tested is placed inside the packaging cavity, and then the UB ceramic airtight seal is squeezed and fixed through the protective plate of the rubber material through the sliding of the clamp plate, so as to ensure the stability of the UB ceramic airtight seal during work, and there is no friction and bump between each other, thus avoiding surface scratches and ensuring that the ceramic airtight seal will not move or shake during the leak detection process, which helps to ensure the accuracy and reliability of the leak detection results and avoid misjudgment due to position changes. At the same time, the devices to be tested can also be placed in the tooling in sequence according to the serial number, with 30 products placed in each tooling, so that the UB packaged devices can be arranged in order before and after the leak detection.

2. The cover plate of the utility model is tightly fitted with the leak detection tooling through the sealing bolt and the sealing groove to ensure the sealing of the packaging cavity. Then, when the cover plate is installed, it is connected with the positioning rod by snapping to ensure the stability of the cover plate during installation.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the front cross-sectional structure of the utility model;

Figure 2 is a schematic diagram of the opening and closing structure of the cover plate of the utility model;

FIG. 3 is a schematic diagram of the internal structure of the packaging cavity of the utility model.

In the figure: 1. Mounting base; 2. Leak detection tool; 3. Packaging cavity; 4. Slide rail bracket; 5. Driving gear; 6. Connecting gear; 7. Threaded rod; 8. Clamp; 9. Block; 10. Protective plate; 11. Sealing groove; 12. Cover plate; 13. Sealing plug; 14. Threaded plug; 15. Positioning rod; 16. Leak detection tube.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1-3. The utility model provides a technical solution: a leak detection tool for UB ceramic airtight packaging, including a mounting base 1 and a slide rail bracket 4, a leak detection tool 2 is installed on the upper end surface of the mounting base 1, a packaging cavity 3 is opened inside the leak detection tool 2, a slide rail bracket 4 is installed on the inner wall of the packaging cavity 3, a driving gear 5 is installed inside the slide rail bracket 4, a connecting gear 6 is meshed inside the driving gear 5, a threaded rod 7 is installed inside the connecting gear 6, a clamping plate 8 is installed on the outer surface of the threaded rod 7, a stopper 9 is arranged on the right side of the packaging cavity 3, a protective plate 10 is installed on the inner wall of the stopper 9, a sealing groove 11 is opened on the upper end surface of the leak detection tool 2, a cover plate 12 is installed on the upper end of the leak detection tool 2, a sealing bolt 13 is installed on the inner wall of the cover plate 12, and threaded bolts 14 are installed on the four ends of the cover plate 12, a positioning rod 15 is installed on the left side of the upper end surface of the mounting base 1, and a leak detection tube 16 is installed at one end of the leak detection tool 2.

Furthermore, the threaded rod 7 forms a rotating structure with the driving gear 5 through the connecting gear 6, and the clamping plate 8 forms a sliding structure with the slide rail bracket 4 through the threaded rod 7. The driving gear 5 is rotated by the first hand wheel, and the threaded rod 7 is driven to rotate by the connecting gear 6, so that the clamping plate 8 can slide along the inside of the slide rail bracket 4.

Furthermore, the protective plate 10 is fixedly connected to the block 9, and the protective plate 10 is made of rubber material. Then, when the clamp 8 slides to the right, the UB ceramic airtight sealing assembly to be leak tested is placed inside the packaging cavity 3, and then the clamp 8 slides to squeeze and fix the UB ceramic airtight sealing assembly through the protective plate 10 made of rubber material, thereby ensuring the stability of the UB ceramic airtight sealing assembly during operation, and without friction or collision between each other, avoiding surface scratches, and ensuring that the ceramic airtight sealing assembly will not move or shake during the leak detection process, which helps to ensure the accuracy and reliability of the leak detection results and avoid misjudgment due to position changes.

Furthermore, the leak detection tools 2 are arranged into two groups, the two groups of leak detection tools 2 are symmetrically distributed about the mounting base 1, the packaging cavities 3 are arranged into thirty groups, and each UB ceramic airtight packaging component is evenly installed inside the packaging cavity 3 to avoid friction damage between them.

Furthermore, the cover plate 12 is tightly fitted with the leak detection tool 2 through the sealing bolt 13 and the sealing groove 11, and the cover plate 12 is snap-fitted with the positioning rod 15. The set cover plate 12 is tightly fitted with the leak detection tool 2 through the sealing bolt 13 and the sealing groove 11 to ensure the sealing of the packaging cavity 3, and then when the cover plate 12 is installed, it is snap-fitted with the positioning rod 15 to ensure the stability of the cover plate 12 during installation, and then when the leak detection work is performed, the leak detection tube 16 is installed and connected with the leak detection instrument, and after a certain pressure of gas is filled in, if the pressure continues to drop, it means that there is a gas leakage, so that it can be judged that the ceramic airtight sealing assembly has a poor sealing problem.

Furthermore, the cover plate 12 and the leak detection tool 2 form a detachable structure through the threaded bolts 14 , and the threaded bolts 14 are arranged in four groups, and the threaded bolts 14 are used for disassembly and installation of the cover plate 12 .

Working principle: by connecting the gear 6 to drive the rotation of the threaded rod 7, the clamping plate 8 is realized to slide along the inside of the slide rail bracket 4, and then when the clamping plate 8 slides to the right, the UB ceramic airtight seal to be leak tested is placed inside the packaging cavity 3, and then the UB ceramic airtight seal is squeezed and fixed through the protective plate 10 of the rubber material through the sliding of the clamping plate 8, so as to ensure the stability of the UB ceramic airtight seal during operation, and there is no friction and bump between each other, and then, the set cover plate 12 is tightly fitted with the leak detection tool 2 through the sealing bolt 13 and the sealing groove 11 to ensure the sealing of the packaging cavity 3, and then when installing the cover plate 12, it is connected by snapping with the positioning rod 15 to ensure the stability of the cover plate 12 during installation, and then when leak detection is performed, the leak detection tube 16 is installed and connected with the leak detection instrument, and after a certain pressure of gas is filled, if the pressure continues to drop, it means that there is a gas leak, so that it can be judged that the ceramic airtight seal has a poor sealing problem, and the operation is simple and convenient.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A leak detection tool for UB ceramic airtight packaging, characterized in that it comprises a mounting base (1) and a slide rail bracket (4), characterized in that: a leak detection tool (2) is mounted on the upper end surface of the mounting base (1), a packaging cavity (3) is provided inside the leak detection tool (2), a slide rail bracket (4) is mounted on the inner wall of the packaging cavity (3), a driving gear (5) is mounted inside the slide rail bracket (4), a connecting gear (6) is meshed inside the driving gear (5), a threaded rod (7) is mounted inside the connecting gear (6), and the threaded rod (7) is ) is installed with a clamping plate (8) on its outer surface, a stopper (9) is arranged on the right side of the packaging cavity (3), a protective plate (10) is installed on the inner wall of the stopper (9), a sealing groove (11) is opened on the upper end surface of the leak detection tool (2), a cover plate (12) is installed on the upper end of the leak detection tool (2), a sealing bolt (13) is installed on the inner wall of the cover plate (12), threaded bolts (14) are installed on the four ends of the cover plate (12), a positioning rod (15) is installed on the left side of the upper end surface of the mounting base (1), and a leak detection tube (16) is installed on one end of the leak detection tool (2). 2. A leak detection tool for UB ceramic airtight packaging according to claim 1, characterized in that: the threaded rod (7) forms a rotating structure with the driving gear (5) through the connecting gear (6), and the clamping plate (8) forms a sliding structure with the slide rail bracket (4) through the threaded rod (7). 3. A leak detection tool for UB ceramic airtight packaging according to claim 1, characterized in that: the protective plate (10) is fixedly connected to the stopper (9), and the protective plate (10) is made of rubber material. 4. A leak detection tool for UB ceramic airtight packaging according to claim 1, characterized in that: the leak detection tool (2) is arranged in two groups, the two groups of leak detection tools (2) are symmetrically distributed about the mounting base (1), and the packaging cavity (3) is arranged in thirty groups. 5. A leak detection tool for UB ceramic airtight packaging according to claim 1, characterized in that: the cover plate (12) is tightly fitted with the leak detection tool (2) through the sealing bolt (13) and the sealing groove (11), and the cover plate (12) is connected to the positioning rod (15) in a snap-fitting manner. 6. A leak detection tool for UB ceramic airtight packaging according to claim 1, characterized in that the cover plate (12) and the leak detection tool (2) form a detachable structure through threaded bolts (14), and the threaded bolts (14) are arranged in four groups.