CN212693180U

CN212693180U - Test equipment for testing sealing performance of cavity

Info

Publication number: CN212693180U
Application number: CN202022160362.0U
Authority: CN
Inventors: 李�杰
Original assignee: Hangzhou Chuan Di Technology Co ltd
Current assignee: Hangzhou Chuan Di Technology Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-03-12
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses a test device for testing the sealing performance of a cavity, which comprises a bedplate, a test mechanism arranged on the bedplate and an air tightness tester; the testing mechanism is characterized by comprising a bottom plate arranged on the bedplate, a small cylinder fixing frame arranged on the bottom plate, a large cylinder fixing frame and a positioning plate arranged on the bottom plate; the bottom plate is also provided with a gas control electric plate. The utility model discloses a carry out the cavity leakproofness test to accomplishing the semi-manufactured goods air throttle of necessary part installation through accredited testing organization and airtight tester, if discover the defective products, then hold back in the earlier stage, avoid flowing into the epilogue to the process of earlier stage is examined, avoids appearing large batch nonconforming product, reduction in production cost improves the product percent of pass.

Description

Test equipment for testing sealing performance of cavity

Technical Field

The utility model relates to a sealed test of throttle valve specifically indicates a survey test equipment of cavity leakproofness.

Background

At present, a throttle valve applied to an automobile mainly comprises a throttle valve body, a throttle valve shaft, a throttle valve sheet, a torsional spring, a position sensor, a rotating frame mechanism and the like, wherein an air inlet main channel is arranged in the throttle valve body; the throttle valve body is a controllable valve used for controlling air to enter the engine, the air flow is controlled by the opening of the throttle valve sheet and the stroke of the stepping motor, and then the air is mixed with gasoline through the air inlet manifold to form combustible gas to participate in combustion and work; therefore, the sealing performance of the throttle valve cavity is particularly important, the cavity sealing test is generally carried out after the product assembly is finished when the throttle valve is in side view of the sealing performance of the cavity, when a defective product is found to be leaked during the product test, unnecessary part waste and labor hour waste can be caused, and the products in the same batch can possibly have the large-batch defective products, so that the reject ratio of the products is improved, and the production and manufacturing cost is improved. Therefore, the test equipment for testing the sealing performance of the cavity is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above problem and providing a survey test equipment of cavity leakproofness.

In order to achieve the purpose, the utility model provides a test equipment for testing the sealing performance of a cavity, which comprises a bedplate, a test mechanism arranged on the bedplate and an airtight tester; the testing mechanism is characterized by comprising a bottom plate arranged on the bedplate, a small cylinder fixing frame arranged on the bottom plate, a large cylinder fixing frame and a positioning plate arranged on the bottom plate; the bottom plate is also provided with a gas control electric plate.

Preferably, the two sides of the bottom plate are both provided with small cylinder fixing frames, and the small cylinder fixing frames are provided with small cylinders; and the large cylinder fixing frame is provided with a first large cylinder and a second large cylinder.

Preferably, the small cylinder is provided with a shaft hole sealing plug, the large cylinder is provided with a cylinder rod I, and the cylinder rod I is provided with an inner cavity sealing plug; and a second air cylinder rod is arranged on the large air cylinder II, and a negative pressure pipe plug and a motor hole plug are arranged on the second air cylinder rod.

Further preferably, the positioning plate is provided with a positioning pin.

Preferably, the platen is further provided with an airtight tester fixing frame, and the airtight tester fixing frame is provided with an airtight tester.

Further preferably, gratings are further installed on two sides of the bedplate, and the gratings are connected with the air tightness tester through lines.

Further preferably, the shaft hole sealing plug, the inner cavity sealing plug, the negative pressure pipe plug and the motor hole plug are all provided with sealing grooves, and sealing rings are installed in the sealing grooves.

Further preferably, a sealing groove is also formed in the positioning plate, and a sealing ring is also installed in the sealing groove.

Further preferably, an air inlet interface is further installed on the inner cavity sealing plug.

The utility model discloses a accredited testing organization and airtight tester carry out the cavity leakproofness test to the semi-manufactured goods air throttle that will accomplish the installation of necessary part, if discover the defective products, then hold back in the earlier stage, avoid flowing into the epilogue to the process of earlier stage is examined, avoids appearing large batch nonconforming product, reduction in production cost, improvement product percent of pass.

Drawings

FIG. 1 is a schematic structural diagram of the utility model in use;

FIG. 2 is a schematic structural diagram of a testing mechanism of the present invention;

FIG. 3 is a schematic view of a partially enlarged structure of a testing mechanism of the present invention;

fig. 4 is a side view schematic diagram of the middle testing mechanism of the present invention.

Illustration of the drawings: 1. a platen; 2. a testing mechanism; 21. a base plate; 22. a small cylinder mount; 221. a small cylinder; 23. a large cylinder fixing frame; 231. a first large cylinder; 232. a large cylinder II; 233. a cylinder rod I; 234. a cylinder rod II; 24. positioning a plate; 241. positioning pins; 3. an air-tightness tester; 31. an airtight tester fixing frame; 4. a gas control electric plate; 5. the shaft hole seals the plug; 6. the inner cavity seals the plug; 61. an air inlet interface; 62. a pressure sensor; 7. a negative pressure pipe plug; 8. a motor hole plug; 9. a grating; 10. a sealing groove; 101. and (5) sealing rings.

Detailed Description

The following description will further describe the testing apparatus for testing the sealing performance of the cavity according to the present invention with reference to the accompanying drawings.

As shown in fig. 1, a test apparatus for testing the sealing performance of a chamber according to the present embodiment includes a platen 1 and a hermetic seal tester 3 mounted on the platen 1; the device is characterized by also comprising a testing mechanism 2 arranged on the bedplate 1 and a gas control electric plate 4 arranged on the bedplate 1 and connected with the testing mechanism 2; carry out the cavity leakproofness test to the semi-manufactured goods air throttle that will accomplish necessary part installation through accredited testing organization 2 and airtight tester 3, if find the defective products, then hold back in the earlier stage, avoid flowing into the epilogue to the process to the earlier stage is examined, avoids appearing large batch nonconforming product, reduction in production cost improves the product percent of pass.

Further, as shown in fig. 1-2 and 4, the testing mechanism 2 includes a bottom plate 21 mounted on the platen 1, a small cylinder fixing frame 22 mounted on the bottom plate 21, a large cylinder fixing frame 23, and a positioning plate 24 mounted on the bottom plate 21; two sides of the bottom plate 21 are both provided with small cylinder fixing frames 22, and the small cylinder fixing frames 22 are provided with small cylinders 221; the large cylinder fixing frame 23 is provided with a first large cylinder 231 and a second large cylinder 232;

further, as shown in fig. 2, a shaft hole sealing plug 5 is installed on the small cylinder 221, a cylinder rod one 233 is installed on the large cylinder one 231, and an inner cavity sealing plug 6 is installed on the cylinder rod one 233; a second cylinder rod 234 is installed on the second large cylinder 232, and a negative pressure pipe plug 7 and a motor hole plug 8 are installed on the second cylinder rod 234; through the arrangement of the small air cylinder 221, the large air cylinder one 231 and the large air cylinder two 232, the small air cylinder, the large air cylinder one 231 and the large air cylinder two 232 are arranged as power elements, the inner cavity sealing plug 6, the negative pressure pipe plug 7 and the motor hole plug 8 are pushed to seal corresponding holes in the throttle valve, the positions of the holes are positioned and fixed, and the holes in the throttle valve are sealed, so that the sealing performance of the throttle valve can be tested.

Further, as shown in fig. 2, the positioning plate 24 is provided with a positioning pin 241; the position of the throttle valve is defined by the positioning pin 241, so that the sealing position can be accurate, thereby increasing the detection accuracy.

Further, as shown in fig. 1, an airtight tester 3 fixing frame 31 is further installed on the platen 1, and the airtight tester 3 is installed on the airtight tester fixing frame 31.

Further, as shown in fig. 1, gratings 9 are further installed on two sides of the platen 1, and the gratings 9 are connected with the gas control electric plate 4 through a line; through the setting of grating 9, increase the grating control method, increase the security through the grating scanning line, prevent the accident, stretch into when human body or foreign matter, by the grating scanning line scanning back through accuse gas electroplax 4 control little cylinder 221, big cylinder one 231, big cylinder two 232 automatic loosening, prevent to take place the incident.

Further, as shown in fig. 2-3, sealing grooves 10 are respectively arranged on the shaft hole sealing plug 5, the inner cavity sealing plug 6, the negative pressure tube plug 7 and the motor hole plug 8, and a sealing ring 101 is installed in each sealing groove 10; by arranging the sealing groove 10 and the sealing ring 101, the sealing performance is improved, and the accuracy of product testing is improved.

Further, as shown in fig. 3, the positioning plate 24 is also provided with a sealing groove 10, and a sealing ring 101 is also installed in the sealing groove 10.

Further, as shown in fig. 2, an air inlet interface 61 is further installed on the inner cavity sealing plug 6, and a pressure sensor 62 is further installed on the air inlet interface 61; the air supply device is connected through the air inlet 61, the pressure sensor 62 is arranged on the air inlet 61, and the pressure in the throttle valve cavity is detected through the pressure sensor 62 and transmitted to the air tightness tester 3 for analysis and comparison.

The utility model discloses a working process: as shown in fig. 1-4, the throttle valve is firstly installed on the positioning plate 24 through cooperation with the positioning pin 241, then the air tightness tester 3 is started, the air tightness tester 3 controls the small air cylinder 221, the large air cylinder one 231 and the large air cylinder two 232 to start through the air control electric plate, the shaft hole sealing plug 5, the inner cavity sealing plug 6, the negative pressure pipe plug 7 and the motor hole plug 8 are pushed out to perform sealing operation, and the small air cylinder 221, the large air cylinder one 231 and the large air cylinder two 232 operate sequentially at intervals of 1 second; then control the air supply equipment air feed through accuse gas electroplax 4, throw into the air throttle through air inlet port 61, the pressure 25 seconds under 30KPa atmospheric pressure, pressurize 5 seconds, the pressure 5 seconds, then little cylinder 221, big cylinder one 231 and big cylinder two 232 open with opposite order interval one second in proper order, then take off the air throttle from locating plate 24 can, the test data is in order to transmit to airtight tester 3 through pressure sensor 62, show the test result through airtight tester 3.

The scope of the present invention is not limited to the above embodiments and their variations. The present invention is not limited to the above embodiments, and other modifications and substitutions may be made by those skilled in the art.

Claims

1. A test device for testing the sealing performance of a cavity comprises a bedplate (1) and an airtight tester (3) arranged on the bedplate (1); the device is characterized by further comprising a testing mechanism (2) arranged on the bedplate (1) and a gas control electric plate (4) which is arranged on the bedplate (1) and connected with the testing mechanism (2).

2. The apparatus for testing chamber tightness according to claim 1, wherein: the testing mechanism (2) comprises a bottom plate (21) arranged on the bedplate (1), a small cylinder fixing frame (22) arranged on the bottom plate (21), a large cylinder fixing frame (23) and a positioning plate (24) arranged on the bottom plate (21); two sides of the bottom plate (21) are respectively provided with a small air cylinder fixing frame (22), and a small air cylinder (221) is arranged on the small air cylinder fixing frame (22); and a first large cylinder (231) and a second large cylinder (232) are arranged on the large cylinder fixing frame (23).

3. The apparatus for testing chamber tightness according to claim 2, wherein: the small cylinder (221) is provided with a shaft hole sealing plug (5), the large cylinder I (231) is provided with a cylinder rod I (233), and the cylinder rod I (233) is provided with an inner cavity sealing plug (6); and a second cylinder rod (234) is arranged on the second large cylinder (232), and a negative pressure pipe plug (7) and a motor hole plug (8) are arranged on the second cylinder rod (234).

4. The apparatus for testing chamber tightness according to claim 2, wherein: and the positioning plate (24) is provided with a positioning pin (241).

5. The apparatus for testing chamber tightness according to claim 1, wherein: an airtight tester fixing frame (31) is further installed on the bedplate (1), and an airtight tester (3) is installed on the airtight tester fixing frame (31).

6. The apparatus for testing chamber tightness according to claim 5, wherein: the novel table is characterized in that gratings (9) are further mounted on two sides of the table plate (1), and the gratings (9) are connected with the gas control electric plate (4) through lines.

7. The apparatus of claim 3, wherein: all be equipped with seal groove (10) on shaft hole seal end cap (5), inner chamber seal end cap (6), negative pressure pipe end cap (7) and motor hole end cap (8), install sealing washer (101) in seal groove (10).

8. The apparatus for testing chamber tightness according to claim 4, wherein: a sealing groove (10) is also formed in the positioning plate (24), and a sealing ring (101) is also installed in the sealing groove (10).

9. The apparatus for testing chamber tightness according to claim 7, wherein: and an air inlet interface (61) is further installed on the inner cavity sealing plug (6), and a pressure sensor (62) is further installed on the air inlet interface (61).