Multi-station air pressure test tool and air pressure test automation equipment thereof

Abstract

The utility model discloses a multi-station air pressure test tool and an air pressure test automation device thereof, the multi-station air pressure test tool is used for synchronously testing product performance of a plurality of air pressure sensors to be tested, and the multi-station air pressure test tool comprises a base, a hollow square air channel, at least one vent hole, a data acquisition plate and at least one air pressure adapter plate; the equipment comprises the multi-station air pressure testing tool. The device can test a plurality of devices at one time, and the data is automatically acquired through the acquisition board, so that the test data is greatly increased, and the labor cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing, in particular to a multi-station air pressure testing tool and air pressure testing automation equipment. Background Art

[0002] Product performance testing is a common manufacturing process in the pressure sensor manufacturing industry. A fast and stable connection with the product is required to power on the product and output test parameters.

[0003] In the prior art, when testing the performance of products to be tested, a one-by-one testing method is generally adopted, that is, each test tool can only perform performance testing on one product to be tested. When the number of products to be tested is large, it takes a long time to complete the performance testing of all the products to be tested, and the work efficiency is low. Utility Model Content

[0004] The main purpose of the utility model is to provide a multi-station air pressure testing tool and air pressure testing automation equipment. Each test tool can only perform performance testing on one product to be tested. When the number of products to be tested is large, the work efficiency is low.

[0005] To achieve the above objectives, one of the technical solutions adopted by the present invention is: a multi-station air pressure test fixture, which is used to synchronously test the product performance of multiple air pressure sensors to be tested, and the fixture includes:

[0006] Base 1 is used to support various components of the tooling; the base 1 is a base with a square groove in the middle;

[0007] The hollow square air channel 2 is used to ventilate the air pressure sensor to be tested installed thereon; the hollow square air channel 2 is installed on the base 1;

[0008] At least one vent hole 3, which is located above the hollow square air channel 2;

[0009] The data acquisition board 4 is used to collect calibration data of the air pressure sensor to be tested; the data acquisition board 4 is installed in the middle of the base 1;

[0010] At least one air pressure adapter plate 5, which is installed on the outer side of the square groove;

[0011] The bottom of the air pressure sensor to be tested is installed on the corresponding vent hole 3, and the upper part of the air pressure sensor to be tested is connected to the corresponding data acquisition board 4 through an air pipe;

[0012] Each air pressure adapter board 5 is connected to the data acquisition board 4 through an adapter harness 6 to transmit the calibration data of the air pressure sensor to be tested to the data acquisition board 4;

[0013] The data acquisition board 4 transmits the calibration data to the peripheral system through the data transmission and power supply harness 7 for data aggregation and analysis.

[0014] Furthermore, the tooling also includes a total air pressure pipe and a connector 8 , which are installed on the vent hole 3 and are used to pressurize the air intake of the hollow square air duct 2 .

[0015] Furthermore, a sealing plug is provided on the vent hole 3 where the air pressure sensor to be tested is not installed.

[0016] Furthermore, at least one set of structural supports 9 and handles 10 is provided on the base 1 , and the structural supports 9 and handles 10 are fixedly connected to the base 1 by screws.

[0017] Another technical solution adopted by the present invention is: air pressure test automation equipment, which includes the above-mentioned multi-station air pressure test tooling.

[0018] Furthermore, the device also includes: a temperature box 11, a dedicated computer 12, a vacuum pump 13, a compressor 14 and a pressure controller 15.

[0019] Furthermore, a multi-station air pressure testing tool is installed in the temperature box 11.

[0020] Furthermore, the dedicated computer 12 is connected to the data acquisition board 4 via a data transmission and power supply harness 7 .

[0021] Furthermore, the vacuum pump 13 and the compressor 14 are both connected to the pressure controller 15 .

[0022] Furthermore, the pressure controller 15 is connected to the multi-station air pressure testing tool through the total air pressure pipe and the joint 8.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] This equipment can test multiple items at one time, and through automatic data acquisition board, it greatly improves the test data and saves labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of the multi-station air pressure testing tool of the utility model;

[0026] Figure 2 This is a top view of the multi-station air pressure testing tool of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the air pressure test automation equipment of the present utility model;

[0028] Figure 4 This is the main view of the air pressure testing automation equipment of the present utility model.

[0029] In the figure: 1. Base; 2. Hollow square air duct; 3. Vent; 4. Data acquisition board; 5. Air pressure adapter board; 6. Adapter harness; 7. Data transmission and power harness; 8. Total air pressure pipe and connector; 9. Structural bracket; 10. Handle; 11. Temperature box; 12. Special computer; 13. Vacuum pump; 14. Compressor; 15. Pressure controller; 16. Sealing plug. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figure 1-2 As shown, the multi-station air pressure test fixture is used to synchronously test the product performance of multiple air pressure sensors to be tested. The fixture includes:

[0033] Base 1 is used to support various components of the tooling; the base 1 is a base with a square groove in the middle;

[0034] Specifically, the base 1 is made of aviation aluminum. Aviation aluminum alloys are not designed for hardness, but rather for their light weight and excellent ductility. However, since aluminum is too soft and easily deformed, a small amount of rare metals is added to harden it and also to increase its melting point. Aviation aluminum is an aluminum alloy and is considered the finest of aluminum alloys.

[0035] The hollow square air channel 2 is used to ventilate the air pressure sensor to be tested installed thereon; the hollow square air channel 2 is installed on the base 1;

[0036] Specifically, the hollow square air duct 2 is formed by welding and assembling stainless steel.

[0037] At least one vent hole 3, which is located above the hollow square air channel 2;

[0038] Specifically, the vent holes 3 are M12 threaded holes, and there are 30 of them.

[0039] The data acquisition board 4 is used to collect calibration data of the air pressure sensor to be tested; the data acquisition board 4 is installed in the middle of the base 1;

[0040] At least one air pressure adapter plate 5, which is installed on the outer side of the square groove;

[0041] The bottom of the air pressure sensor to be tested is installed on the corresponding vent hole 3, and the upper part of the air pressure sensor to be tested is connected to the corresponding data acquisition board 4 through an air pipe;

[0042] Each air pressure adapter board 5 is connected to the data acquisition board 4 through an adapter harness 6 to transmit the calibration data of the air pressure sensor to be tested to the data acquisition board 4;

[0043] The data acquisition board 4 transmits the calibration data to the peripheral system through the data transmission and power supply harness 7 for data aggregation and analysis.

[0044] Furthermore, the tooling also includes a total air pressure pipe and a connector 8 , which are installed on the vent hole 3 and are used to pressurize the air intake of the hollow square air duct 2 .

[0045] Furthermore, a sealing plug 16 is provided on the vent hole 3 where the air pressure sensor to be tested is not installed.

[0046] Specifically, the sealing plug 16 is made of stainless steel and is provided with a PTFE soft rubber ring.

[0047] Because the test temperature of air pressure sensor equipment is now between -55℃ and 125℃, PTFE hose with a temperature resistance of -120℃ to 180℃ is used to achieve better sealing.

[0048] Furthermore, at least one set of structural supports 9 and handles 10 is provided on the base 1 , and the structural supports 9 and handles 10 are fixedly connected to the base 1 by screws.

[0049] The working process is as follows: replace the sealing plug 16 of the air pressure sensor to be tested, and continue to seal the remaining space with the sealing plug 16, connect the data transmission and power harness 7 to the peripheral computer and power supply, and externally pump air or exhaust air through the total air pressure pipe and connector 8 to ensure that the entire cavity maintains a pressure value, use a thermostat to control the temperature of the working environment, and finally convert the air pressure into data, and use the software in the peripheral computer to calculate the calibration result.

[0050] Example 1

[0051] like Figure 3-4 As shown, the air pressure testing automation equipment includes the multi-station air pressure testing tooling recorded in the above embodiment.

[0052] Furthermore, the device also includes: a temperature box 11, a dedicated computer 12, a vacuum pump 13, a compressor 14 and a pressure controller 15.

[0053] Furthermore, a multi-station air pressure testing tool is installed in the temperature box 11.

[0054] Furthermore, the dedicated computer 12 is connected to the data acquisition board 4 via a data transmission and power supply harness 7 .

[0055] Furthermore, the vacuum pump 13 and the compressor 14 are both connected to the pressure controller 15 .

[0056] Furthermore, the pressure controller 15 is connected to the multi-station air pressure testing tool through the total air pressure pipe and the joint 8.

[0057] The working process is as follows: install the air pressure sensor to be tested on the product's multi-station air pressure testing tooling, place the multi-station air pressure testing tooling in the incubator 11, place it steadily, and throw the wiring harness and air pipe on the multi-station air pressure testing tooling out of the wiring hole of the incubator 11. Insert the wiring harness data of the multi-station air pressure testing tooling into the dedicated computer 12 and the power supply, connect the air pipe of the multi-station air pressure testing tooling to the corresponding connector of the pressure controller 15, install the air pressure pipes of the vacuum pump 13 and the compressor 14 at the corresponding connector positions of the pressure controller 15 respectively, connect the incubator 11, the dedicated computer 12, the vacuum pumps 1, 3 compressors 14 and the pressure controller 15 power supply, and the installation is completed.

[0058] Operation process: turn on the incubator 11, dedicated computer 12, vacuum pump 13, compressor 14 and pressure controller 15; adjust the incubator 11 to the test temperature, turn on the vacuum pump 13 or compressor 14 and adjust it to about 30kPa higher than the test pressure, set the air pressure detection value in the pressure controller 15, and stabilize the test value within the detection range. Turn on the automation software, automatically take values, and collect data in the dedicated computer 12. The entire process operation is completed.

[0059] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. Multi-station air pressure test fixture, characterized by: This tool is used to synchronously test the performance of multiple pressure sensors to be tested. The tool includes: A base (1) is used to carry various components of the tooling; the base (1) is a base with a square groove in the middle; A hollow square air channel (2) is used to ventilate an air pressure sensor to be tested mounted thereon; the hollow square air channel (2) is mounted on the base (1); at least one vent hole (3) located above the hollow square airway (2); A data acquisition board (4) is used to collect calibration data of the air pressure sensor to be tested; the data acquisition board (4) is installed in the middle of the base (1); At least one air pressure adapter plate (5) mounted on the outer side of the square groove; The bottom of the air pressure sensor to be tested is mounted on the corresponding vent hole (3), and the upper portion of the air pressure sensor to be tested is connected to the corresponding data acquisition board (4) via an air pipe; Each air pressure adapter plate (5) is connected to the data acquisition board (4) via an adapter harness (6), and the calibration data of the air pressure sensor to be tested is transmitted to the data acquisition board (4); The data acquisition board (4) transmits the calibration data to the peripheral system through the data transmission and power supply harness (7) for data aggregation and analysis.

2. The multi-station air pressure testing tool according to claim 1, characterized in that: The tooling also includes a total air pressure pipe and a joint (8), which are installed on the vent hole (3) and are used to pressurize the hollow square air duct (2).

3. The multi-station air pressure testing tool according to claim 1, characterized in that: A sealing plug is provided on the vent hole (3) where the air pressure sensor to be tested is not installed.

4. The multi-station air pressure testing tool according to claim 1, characterized in that: The base (1) is also provided with at least one set of structural supports (9) and handles (10), and the structural supports (9) and handles (10) are both fixedly connected to the base (1) by screws.

5. Air pressure test automation equipment, characterized by: The equipment includes the multi-station air pressure testing tool as described in any one of claims 1-4.

6. The air pressure test automation equipment according to claim 5, characterized in that: The device also includes: a temperature box (11), a special computer (12), a vacuum pump (13), a compressor (14) and a pressure controller (15).

7. The air pressure test automation equipment according to claim 6, characterized in that: The multi-station air pressure test fixture is installed in the temperature box (11).

8. The air pressure test automation equipment according to claim 7, characterized in that: The dedicated computer (12) is connected to the data acquisition board (4) via a data transmission and power supply harness (7).

9. The air pressure test automation equipment according to claim 7, characterized in that: The vacuum pump (13) and the compressor (14) are both connected to the pressure controller (15).

10. The air pressure test automation equipment according to claim 9, characterized in that: The pressure controller (15) is connected to the multi-station air pressure test fixture through the total air pressure pipe and the joint (8).

Images