Air-tightness detection device for automobile axle assembly

Abstract

The invention discloses an air-tightness detection device for an automobile axle assembly, which is used for air-tightness detection of the axle assembly. The device consists of a pressure resistant box body, an electric control part and a sealing detection part; an air source is connected with the air inlet of an air storage tank, and the air outlet of the air storage tank is communicated with aformed ventilation plug hole through a sealing air plug; and the external power supply of the electric control part is connected with a circuit control board through a power regulator, a pressure sensor is communicated with the air storage tank, the other side is connected with the circuit control board through a piezoelectric signal converter, and a display controller is connected with the circuit control board together. The tightness of the axle assembly can be quickly and conveniently detected through the change of the air pressure of the cavity of the axle assembly, so that whether the axle assembly leaks oil can be accurately judged; the potential leakage point of the axle assembly due to the defects that the parts have pores and sand holes and the joint faces of the parts have gaps can be timely and accurately found, and the production cost is reduced; and the manufacturing quality of the axle assembly is effectively promoted, rejects of post projects of automobile axle manufacturers are reduced, and the hidden danger of product production is avoided.

Description

technical field

[0001] The invention relates to the field of mechanical manufacturing testing, in particular to a testing device for testing the sealing performance of an automobile axle assembly. Background technique

[0002] Oil leakage caused by defects such as pores, trachoma, and gaps in the joint surfaces of automobile axle assemblies is not easy to be detected in time, which is relatively common, bringing large economic losses and negative social impacts to automobile axle manufacturers. At present, the oil leakage detection of the automobile axle assembly usually uses the test machine to test the leaking of the axle assembly for a long time after filling the axle with oil. This test method cannot detect whether the assembly is leaking in a short period of time. , the effect is not ideal, and eventually many axle assemblies are found to have air holes, trachoma, and gaps in the joint surfaces of parts when the vehicle is running, which leads to oil leakage from the ax...

Examples

Embodiment Construction

[0016] Such as figure 1 , figure 2 As shown, the pressure-resistant box 1 of the present invention is equipped with an electric control part and a sealing detection part, and the sealing detection part includes an air storage tank 5, a one-way control valve 8, a manual control valve 9, a filter pressure reducing valve 11, a sealing air plug 13 and the trachea.

[0017] The gas source is connected to the air inlet 6 of the gas storage tank 5 in the pressure-resistant box 1 through a manual control valve 9 and a one-way control valve 8. The one-way control valve 8 can prevent the gas entering the gas storage tank 5 from flowing back and prevent detection Hidden danger, the manual control valve 9 is used to control the air pressure entering the gas storage tank 5; the gas outlet 7 of the gas storage tank 5 is communicated with the vent plug hole of the part 14 through the sealing air plug 13 through the air pipe through the filter pressure reducing valve 11, and the filter redu...

technical field

[0001] The invention relates to the field of mechanical manufacturing testing, in particular to a testing device for testing the sealing performance of an automobile axle assembly. Background technique

[0002] Oil leakage caused by defects such as pores, trachoma, and gaps in the joint surfaces of automobile axle assemblies is not easy to be detected in time, which is relatively common, bringing large economic losses and negative social impacts to automobile axle manufacturers. At present, the oil leakage detection of the automobile axle assembly usually uses the test machine to test the leaking of the axle assembly for a long time after filling the axle with oil. This test method cannot detect whether the assembly is leaking in a short period of time. , the effect is not ideal, and eventually many axle assemblies are found to have air holes, trachoma, and gaps in the joint surfaces of parts when the vehicle is running, which leads to oil leakage from the ax...

Examples

Embodiment Construction

[0016] Such as figure 1 , figure 2 As shown, the pressure-resistant box 1 of the present invention is equipped with an electric control part and a sealing detection part, and the sealing detection part includes an air storage tank 5, a one-way control valve 8, a manual control valve 9, a filter pressure reducing valve 11, a sealing air plug 13 and the trachea.

[0017] The gas source is connected to the air inlet 6 of the gas storage tank 5 in the pressure-resistant box 1 through a manual control valve 9 and a one-way control valve 8. The one-way control valve 8 can prevent the gas entering the gas storage tank 5 from flowing back and prevent detection Hidden danger, the manual control valve 9 is used to control the air pressure entering the gas storage tank 5; the gas outlet 7 of the gas storage tank 5 is communicated with the vent plug hole of the part 14 through the sealing air plug 13 through the air pipe through the filter pressure reducing valve 11, and the filter redu...

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