General testing device for valve products for bullet train

Abstract

The utility model discloses a universal testing device for valve products for bullet trains, which comprises a testing cabinet, a plurality of testing stations are arranged in the testing cabinet, and a testing tool is arranged in each testing station. The test tool comprises a tool installation tray, a confluence plate fixedly arranged on one side of the lower end of the installation tray, four gas circuit interfaces arranged on the upper end face of the confluence plate, gas circuit channels connected with the four gas circuit interfaces respectively, a load air cylinder and a gas circuit conversion plate. According to the utility model, the test tools are universalized and modularized, and multiple groups of test tools are installed in parallel as required, so that multi-product and multi-station parallel test is realized, the test efficiency can be effectively improved, and the test tool has the advantages of strong compatibility and convenience in maintenance.

Description

Technical Field

[0001] The utility model relates to a valve body testing device, in particular to a universal testing device for valve products used in motor vehicles. Background Art

[0002] During the development and production of valve products, performance and fatigue tests are required. Currently, existing testing equipment only has one station and poor compatibility. Changing test products requires simultaneously replacing tooling and adjusting the air circuit. Fatigue testing, in particular, often takes a long time, impacting R&D progress. Utility Model Content

[0003] The purpose of the present invention is to solve the above-mentioned defects and to provide a universal testing device for valve products for motor vehicles, which makes the test tooling universal and modular, and can install multiple groups of test tooling in parallel as needed, thereby realizing parallel testing of multiple products and multiple stations.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A universal testing device for valve products for motor vehicles, comprising a test cabinet, wherein a plurality of test stations are provided in the test cabinet, and a test tool is installed in each of the test stations. The test tool comprises a tool installation tray, a manifold fixed to one side of the lower end of the installation tray, four air path interfaces provided on the upper surface of the manifold, air paths respectively connected to the four air path interfaces, a load air cylinder and an air path conversion plate, wherein the air path comprises a first air path, a second air path, a third air path and a fourth air path, wherein the first air path The passage is provided with a main air intake interface, an air intake ball valve and a main air intake stop valve in sequence; the second air passage is provided with an exhaust stop valve; the load air cylinder is connected to the second air passage through a load air cylinder connecting pipe; the third air passage is provided with a first auxiliary air intake interface and a first auxiliary air intake stop valve in sequence; the fourth air passage is provided with a second auxiliary air intake interface and a second auxiliary air intake stop valve in sequence; the air passage conversion plate is provided with an air intake hole adapted to be connected to the lower end face of the manifold; the air passage plate of the valve to be tested is installed on the lower end face of the air passage conversion plate.

[0006] As a preferred technical solution, it also includes a pressure sensor, which is installed on the front end face of the manifold. Each interface end of the gas path in the manifold is connected to a pressure sensor for testing the air pressure of each gas path.

[0007] As a preferred technical solution, both sides of the installation tray are provided with card slots, and the installation tray is fixed in the test station by engaging movable card blocks with the card slots.

[0008] The beneficial effects of the present invention are: the test tooling is universalized and modularized, and multiple groups of test tooling are installed in parallel as needed, thereby realizing multi-product and multi-station parallel testing, which can effectively improve the test efficiency and has the advantages of strong compatibility and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a top view of a universal testing device for valve products used in motor vehicles according to the utility model;

[0010] Figure 2 This is a three-dimensional diagram of a universal testing device for valve products used in motor vehicles according to the utility model;

[0011] Figure 3 The utility model is a schematic diagram of the multi-station use of a universal testing device for valve products for motor vehicles.

[0012] In the figure: 10-test cabinet, 11-test station, 20-test tooling, 21-installation tray, 21-1-card slot, 22-manifold, 22-1-air path interface, 23-air path, 23-1-first air path, 23-2-second air path, 23-3-third air path, 23-4-fourth air path, 24-load air cylinder, 25-air path conversion plate, 26-load air cylinder connecting pipe, 27-test valve air path plate, 30-main air intake interface, 40-intake ball valve, 50-main air intake stop valve, 60-exhaust stop valve, 70-first auxiliary air intake interface, 80-first auxiliary air intake stop valve, 90-second auxiliary air intake interface, 100-second auxiliary air intake stop valve, 110-pressure sensor. DETAILED DESCRIPTION

[0013] In order to provide a further understanding and recognition of the structural features and the effects achieved by the present invention, a detailed description is provided with reference to preferred embodiments and accompanying drawings as follows:

[0014] The present invention provides a universal testing device for valve products used in motor vehicles. Figure 1-3As shown, the test device includes a test cabinet 10, a plurality of test stations 11 are provided in the test cabinet 1, and a test tool 20 is installed in each test station 11. The test tool 20 includes a tool installation tray 21, a manifold 22 fixed to one side of the lower end of the installation tray 21, four gas path interfaces 22-1 provided on the upper end surface of the manifold 22, gas paths 23 respectively connected to the four gas path interfaces 22-1, a load air cylinder 24 and a gas path conversion plate 25. The gas path 23 includes a first gas path 23-1, a second gas path 23-2, a third gas path 23-3 and a fourth gas path 23-4. The first gas path 23-1 A main air intake interface 30, an air intake ball valve 40 and a main air intake stop valve 50 are sequentially provided on it; an exhaust stop valve 60 is provided on the second air path 23-2; the load air cylinder 24 is connected to the second air path 23-2 through the load air cylinder connecting pipe 26; a first auxiliary air intake interface 70 and a first auxiliary air intake stop valve 80 are sequentially provided on the third air path 23-3; a second auxiliary air intake interface 90 and a second auxiliary air intake stop valve 100 are sequentially provided on the fourth air path 23-4; an air intake hole adapted to communicate with the lower end face of the manifold 22 is provided on the air path conversion plate 25; a test valve air path plate 27 is installed on the lower end face of the air path conversion plate 25.

[0015] In this embodiment, a pressure sensor 110 is further included. The pressure sensor 110 is installed on the front end surface of the manifold 22. A pressure sensor 110 is connected to the interface end of each gas path in the manifold 22 to test the air pressure of each gas path.

[0016] In this embodiment, both sides of the mounting tray 21 are provided with a card slot 21 - 1 , and the mounting tray 21 is fixed in the testing station 11 by engaging movable card blocks with the card slots 21 - 1 .

[0017] The specific working principle of this device is: the performance and fatigue tests of multiple EMU valve products can be carried out simultaneously at multiple test stations 11 in the test cabinet 10. During the test, first, the product to be tested is installed on the valve air path plate 27 to be tested, and the load air cylinder 24 fills a certain pressure of gas into the manifold 22 through the load air cylinder connecting pipe 26 to detect the air tightness of each air path. After the air tightness test is completed, gas is filled in through the air inlet interfaces of the first air path 23-1, the third air path 23-3 and the fourth air path 23-4 in turn to perform product performance and fatigue tests on the product to be tested.

[0018] In summary, the above is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. All equivalent changes and modifications based on the shape, structure, characteristics and spirit described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A universal testing device for valve products for motor vehicles, comprising a test cabinet, wherein a plurality of test stations are provided in the test cabinet, and a test tool is installed in each of the test stations, characterized in that: The air filter press is connected to the air filter press via a first air filter, and the second air filter press is connected to the second air filter press via a second air filter press.

2. A universal testing device for valve products for motor vehicles according to claim 1, characterized in that: It also includes a pressure sensor, which is installed on the front end surface of the manifold. The interface end of each gas path in the manifold is respectively connected to a pressure sensor to test the air pressure of each gas path.

3. The universal testing device for valve products for motor vehicles according to claim 1, characterized in that: Both sides of the installation tray are provided with card slots, and the installation tray is fixed in the test station by means of movable card blocks connected with the card slots.

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