CN210981677U - An air tightness test device - Google Patents

Abstract

The application provides an airtight test device, comprising: a base 1, a casing 2 arranged on the base, and a vertical high-pressure cylinder 3; the casing 2 is provided with two track support plates 21, two vertical Straight cylinder track 22, vertical cylinder pressure plate 23, product installation jig 24, air positive and negative pressure inlet 25, N side sealing cylinders 26 and jig bracket 27, the N is an integer greater than 2; the shell There is a through hole directly above the body 2, the vertical high pressure cylinder 3 is arranged in the casing 2 through the through hole, and is connected with the vertical cylinder pressure plate 23; the product installation The jig 24 is provided with M air pressure adjustment positions 241 and M air pressure sensors; the product installation jig 24 is used to place the object to be measured, and the object to be measured can pass through the vertical high pressure cylinder 3 and all the air pressure sensors. The N side sealing cylinders 26 are placed in the product installation jig 24 in a sealed manner.

Description

An air tightness test device

technical field

The utility model relates to the technical field of testing equipment, in particular to an airtight testing device.

Background technique

Ultrasonic air tightness testing equipment is a kind of equipment to test the air tightness of the object to be tested welded by ultrasonic welding machine.

However, the existing ultrasonic air tightness testing equipment adopts a single air pressure testing device and air pressure adjusting device in the process of testing the air tightness of the object to be tested, so it is impossible to compare the tested data, and at the same time, it is impossible to make precise air pressure measurements. adjust.

Utility model content

In view of the deficiencies existing in the prior art, the purpose of this utility model is to solve the problem that the existing ultrasonic air tightness testing equipment adopts a single air pressure testing equipment and an air pressure regulating equipment in the process of testing, and cannot compare the tested data. , while the air pressure cannot be finely adjusted.

The above-mentioned technical purpose is achieved through the following technical solutions:

The air tightness testing device in the embodiment of the present application includes:

A base 1, a casing 2 and a vertical high-pressure cylinder 3 arranged on the base;

The housing 2 is provided with two rail support plates 21 , two vertical cylinder rails 22 , a vertical cylinder pressure bearing plate 23 , a product installation fixture 24 , an air positive and negative pressure inlet 25 , and N side sealing cylinders 26 And the fixture bracket 27, the N is an integer greater than 2;

The jig bracket 27 is arranged on the base 1 , the product installation jig 24 is arranged on the jig bracket 27 , and the N side sealing cylinders are arranged around the product installation jig 24 . 26;

A through hole is provided directly above the casing 2, and the vertical high pressure cylinder 3 is disposed in the casing 2 through the through hole, and is connected to the vertical cylinder pressure bearing plate 23;

The two rail support plates 21 are arranged on opposite sides of the housing 2 , the two vertical cylinder rails 22 are respectively arranged on the two rail support plates 21 , and the vertical cylinder is pressurized Both ends of the plate 23 are movably arranged on the two rail support plates 21;

The product installation jig 24 is provided with M air pressure adjustment positions 241 and M air pressure sensors; the product installation jig 24 is used to place the object to be measured, and the object to be measured can pass the vertical high pressure The cylinder 3 and the N side sealing cylinders 26 are sealed and placed in the product installation fixture 24, and the M air pressure adjustment positions 241 are used to adjust the air pressure corresponding to the M positions on the object to be measured;

The M air pressure sensors are respectively arranged in the M air pressure adjustment positions 241, and are used to perform air pressure detection on the M air pressure adjustment positions 241 respectively;

The air positive and negative pressure inlets 25 are arranged on one side of the housing 2 and are connected to the air pressure adjustment position 241 .

In an embodiment, the M is 6, and the 6 air pressure adjustment positions 241 are arranged on the product installation jig 24 in a center-symmetric manner.

In one embodiment, a piston rod 31 is provided inside the vertical high-pressure cylinder 3 , and the piston rod 31 can move along the vertical cylinder track 22 in a vertical direction.

In one embodiment, an emergency stop button 12 is fixedly installed in the middle of the front end of the base 1 , and a bilateral start button 11 is fixedly installed on one side of the emergency stop button 12 .

In an embodiment, the product mounting fixture 24 is provided with N card grooves around it, the N card grooves are arranged in a center-symmetrical manner, and the card grooves are used for placing the side sealing cylinder.

In one embodiment, the air tightness testing device further includes: an air pressure controller 4;

The air pressure controller includes M air pressure regulating valves 41 and M air pressure display screens 42;

The M air pressure regulating valves 41 are respectively connected with the M air pressure regulating positions 241 through the air positive and negative pressure inlets 25;

The M air pressure display screens 42 respectively display the air pressure detection values of the M air pressure sensors.

To sum up, the utility model has the following technical effects:

The air pressure inside the casing can be monitored and fed back through the air pressure sensor, which is convenient for observation. The air pressure in the product installation fixture can be adjusted through the air pressure adjustment position 241, and the corresponding adjustment can be made according to the different objects to be measured. The device has strong practicability. There are multiple air pressure sensors and air pressure adjustment positions 241. The air pressure sensor can monitor the air pressure in the product installation fixture and compare the data. At the same time, there are multiple air pressure adjustment positions 241. It can accurately adjust the air pressure value to ensure the accuracy of the test.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the three-dimensional schematic diagram of the air tightness testing device provided by the utility model;

2 is a three-dimensional schematic diagram of a product installation fixture in the air tightness testing device provided by the present invention;

3 is a schematic top view of a product installation fixture in the air tightness testing device provided by the present invention;

FIG. 4 is a three-dimensional schematic diagram of the air pressure controller in the air tightness testing device provided by the present invention.

Reference signs: 1. Base; 11. Bilateral start button; 12. Emergency stop button; 2. Housing; 21. Track support plate; 22. Vertical cylinder track; 23. Vertical cylinder pressure plate; 24. Product Installation fixture; 25, air positive and negative pressure inlet; 26, side sealing cylinder; 27, fixture bracket; 241, air pressure adjustment position; 3, vertical high pressure cylinder; 4, air pressure controller; 41, air pressure adjustment valve; 42. Air pressure display.

Detailed ways

In order to make the purpose, features and advantages of the present utility model more obvious and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be understood that the same or similar reference numerals correspond to the same or similar components in the drawings of the embodiments. In the description of the present invention, it should be understood that if the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc. The orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be constructed in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only used for exemplary illustration, and should not be construed as a limitation on the present patent. Those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.

Example 1

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, an airtight test device includes:

The base 1, the casing 2 and the vertical high pressure cylinder 3 arranged on the base.

The housing 2 is provided with two rail support plates 21 , two vertical cylinder rails 22 , a vertical cylinder pressure bearing plate 23 , a product installation fixture 24 , an air positive and negative pressure inlet 25 , and N side sealing cylinders 26 and the jig bracket 27, the N is an integer greater than 2.

The jig bracket 27 is arranged on the base 1 , the product installation jig 24 is arranged on the jig bracket 27 , and the N side sealing cylinders are arranged around the product installation jig 24 . 26; Exemplarily, the N may be 6.

A through hole is provided directly above the casing 2 , and the vertical high-pressure cylinder 3 is disposed in the casing 2 through the through hole, and is connected to the vertical cylinder pressure-bearing plate 23 .

Specifically, the side of the vertical cylinder pressure-bearing plate 23 facing the product installation fixture 24 has a sealing protrusion. The shape of the sealing protrusion should be adapted to the shape of the side facing the vertical cylinder pressure-bearing plate 23 after being combined with "the product installation jig 24 and the M side sealing cylinders 26". That is, when the object to be measured is placed in the product installation jig 24, the surrounding side sealing cylinders 26 squeeze toward the center of the product installation jig 24, and the vertical high-pressure cylinder 3 drives the vertical cylinder bearing plate 23 to the product installation jig. Extrusion in the direction of tool 24 can form a sealed space together.

The two rail support plates 21 are arranged on opposite sides of the housing 2 , the two vertical cylinder rails 22 are respectively arranged on the two rail support plates 21 , and the vertical cylinder is pressurized Both ends of the plate 23 are movably arranged on the two rail support plates 21 .

The product installation jig 24 is provided with M air pressure adjustment positions 241 and M air pressure sensors; the product installation jig 24 is used to place the object to be measured, and the object to be measured can pass the vertical high pressure The cylinder 3 and the N side sealing cylinders 26 are sealed in the product installation fixture 24, and the M air pressure adjustment positions 241 are used to adjust the air pressure corresponding to the M positions on the object to be measured.

The M air pressure sensors are respectively disposed in the M air pressure adjustment positions 241 for performing air pressure detection on the M air pressure adjustment positions 241 respectively.

The air positive and negative pressure inlets 25 are arranged on one side of the housing 2 and are connected to the air pressure adjustment position 241 .

Exemplarily, as shown in FIG. 3 , in one embodiment, the M may be 6, and the 6 air pressure adjustment positions 241 are arranged on the product installation jig 24 in a center-symmetric manner.

Exemplarily, in one embodiment, a piston rod 31 is provided inside the vertical high-pressure cylinder 3 , and the piston rod 31 can move along the vertical cylinder track 22 in a vertical direction.

Exemplarily, in one embodiment, an emergency stop button 12 is fixedly installed in the middle of the front end of the base 1 , and a bilateral start button 11 is fixedly installed on one side of the emergency stop button 12 .

Exemplarily, in one embodiment, N card slots are opened around the product installation fixture 24, the N card slots are arranged in a center-symmetrical manner, and the card slots are used to place the side surfaces. Seal the cylinder.

Exemplarily, in one embodiment, the air tightness testing device further includes: an air pressure controller 4; the air pressure controller includes M air pressure regulating valves 41 and M air pressure display screens 42; The air pressure regulating valve 41 is respectively connected to the M air pressure regulating positions 241 through the air positive and negative pressure inlets 25; the M air pressure display screens 42 respectively display the air pressure detection values of the M air pressure sensors.

Exemplarily, the air pressure controller 4 is connected to the air positive and negative pressure inlet 25 through the air pipe, and the air positive and negative pressure inlet 25 is connected to the air pressure adjustment position 241 in the product installation fixture 24, and the M air pressure adjustment valves of the air pressure controller. 41 respectively correspondingly adjust the air pressure of the M air pressure adjustment positions 241 in the product installation fixture 24 (eg, external inhalation, that is, to provide negative pressure), so as to correspondingly adjust the air pressure of the corresponding position of the object to be measured. In practical applications, the airtightness of the object to be measured is required to be high, that is, accurate airtightness detection is required for each local position of the whole object to be measured. Therefore, a plurality of air pressure adjustment positions are set in the product installation jig 24 241, and correspondingly perform air pressure detection on each air pressure adjustment position 241 through an air pressure sensor, so that the air tightness detection of the object to be measured by the device of the present application can be accurate to the part of the object to be measured (M air pressure display screens 42 can be respectively Correspondingly display the air pressure detection value of M air pressure sensors).

The specific detection process of the object to be tested is described below, including:

Take out the object to be tested that needs to be tested for air pressure, and place it inside the product installation fixture 24. At the same time, the air source of the air pressure controller 4 is connected to the air positive and negative pressure inlet 25, and the power socket is further connected to the power supply. Then press the bilateral start key 11 to make the air source work.

The air source will input gas to the positive and negative air pressure inlets 25 and the inside of the vertical high pressure cylinder 3, and the gas inside the gas will be input to the inside of the product installation fixture 24 and act on the object to be measured. At the same time, the vertical high-pressure cylinder 3 can expand the gas after receiving the gas, thereby converting thermal energy into mechanical energy and driving the piston to perform linear motion. The piston rod 31 will drive the vertical cylinder pressure plate 23 to move The sliders on both sides of the vertical cylinder pressure-bearing plate 23 slide down inside the vertical cylinder track 22 and act on the inside of the object to be measured.

During the testing process, the air pressure sensor can monitor the air pressure inside the product installation fixture 24 and feed it back to the air pressure display screen 42 for easy observation. When the feedback value is larger or lower than the specified value, the air pressure inside the product installation fixture 24 can be adjusted by rotating the air pressure adjusting position 241 to ensure the accuracy of the test.

In this embodiment, there are multiple air pressure sensors and air pressure adjustment positions 241 , which can accurately monitor the air pressure inside the housing 2 and compare the data. The value is adjusted to ensure the accuracy of the test.

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included within the protection scope of the claims of the present utility model.

The above is a description of an air tightness test device provided by the present invention. For those skilled in the art, according to the idea of the embodiment of the present invention, there will be changes in the specific implementation and application scope. Above, the content of this specification should not be construed as a limitation to the present invention.

Claims (6)

1. A hermetic test apparatus, comprising:

the device comprises a base (1), a shell (2) arranged on the base and a vertical high-pressure cylinder (3);

the air cylinder structure is characterized in that two rail supporting plates (21), two vertical air cylinder rails (22), a vertical air cylinder bearing plate (23), a product mounting jig (24), an air positive and negative pressure inlet (25), N side sealing air cylinders (26) and a jig support (27) are arranged in the shell (2), wherein N is an integer greater than 2;

the jig support (27) is arranged on the base (1), the product mounting jig (24) is arranged on the jig support (27), and the N side sealing cylinders (26) are arranged on the periphery of the product mounting jig (24);

a through hole is formed right above the shell (2), and the vertical high-pressure cylinder (3) penetrates through the through hole to be arranged in the shell (2) and is connected with the vertical cylinder bearing plate (23);

the two rail supporting plates (21) are arranged on two opposite sides in the shell (2), the two vertical cylinder rails (22) are respectively arranged on the two rail supporting plates (21), and two ends of the vertical cylinder bearing plate (23) are movably arranged on the two rail supporting plates (21);

the product mounting jig (24) is provided with M air pressure adjusting positions (241) and M air pressure sensors; the product mounting jig (24) is used for placing an object to be tested, the object to be tested can be hermetically placed in the product mounting jig (24) through the vertical high-pressure cylinder (3) and the N side sealing cylinders (26), and the M air pressure adjusting positions (241) are used for respectively adjusting air pressures corresponding to M positions on the object to be tested;

the M air pressure sensors are respectively arranged in the M air pressure adjusting positions (241) and are used for respectively detecting the air pressure of the M air pressure adjusting positions (241);

the air positive and negative pressure inlet (25) is arranged on one side of the shell (2) and is connected with the air pressure adjusting position (241).

2. The airtightness testing apparatus according to claim 1,

m is 6, and 6 air pressure adjusting positions 241 are arranged on the product mounting jig (24) in a centrosymmetric mode.

3. The airtightness testing apparatus according to claim 1,

a piston rod (31) is arranged inside the vertical high-pressure cylinder (3), and the piston rod (31) can move along the vertical cylinder track (22) in the vertical direction.

4. The airtightness testing apparatus according to claim 1,

the emergency stop device is characterized in that an emergency stop button (12) is fixedly mounted in the middle of the front end of the base (1), and a bilateral starting key (11) is fixedly mounted on one side of the emergency stop button (12).

5. The ultrasonic airtightness testing apparatus according to claim 1,

n clamping grooves are formed in the periphery of the product mounting jig (24), the N clamping grooves are arranged in a centrosymmetric mode, and the clamping grooves are used for placing the side sealing air cylinders.

6. The airtightness testing apparatus according to claim 3,

the airtightness testing apparatus further comprises: a pneumatic controller (4);

the air pressure controller comprises M air pressure regulating valves (41) and M air pressure display screens (42);

the M air pressure regulating valves (41) are respectively connected with M air pressure regulating positions (241) through the air positive and negative pressure inlets (25);

the M air pressure display screens (42) respectively and correspondingly display the air pressure detection numerical values of the M air pressure sensors.

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