The automobile electric push rod is an electric actuator. It is a new type of actuator mainly composed of a motor, a push rod and a control device. It can realize remote control and centralized control.As an important part of the interior of the car, people have high requirements for the sealing and safety of the electric push rod of the car.In order to ensure the safety of automobile electric actuators, manufacturers will conduct sealing testing before shipment. Hirays Technology has always made great achievements in the field of sealing testing. This time we will share the sealing testing of automobile electric actuators, hoping to be helpful to you.

Sealing tester for automotive electric push rods

1. Key points for testing automobile electric push rods

The automotive electric push rods that were tested for sealing this time are made of highly precise stainless steel. Below is the motor shell that connects the push rods, and there are connecting wires below the motor;

The shape of the automobile electric push rod is irregular and the whole is large. There is no outlet that can be directly connected on the surface, which is unfavorable for the sealing test.

Car electric push rod

1. Breakthrough in the difficult sealing test of automobile electric push rods

1. In view of the special shape of the automobile electric push rod, Hai Ruisi specially customized a mold for the automobile electric push rod. The entire mold was cast according to the overall shape of the automobile electric push rod. After the automobile electric push rod was put in, it stuck just right. During the inspection, the upper and lower molds were closed to form a closed space.

Detailed display of automotive electric push rod sealing testing mold

2. This time, an instrument that integrates the detector and tooling is also used, which makes the operation more convenient during testing.Put the automobile electric push rod into the tooling mold and connect it to our instrument. There is a valve island, gas tank and other components inside the instrument as well as the program we have set. After the connection, press the start button when testing the wire.At this time, the upper and lower molds begin to close, and clean gas without impurities is filled into the mold. The instrument display will judge the air tightness of the automobile electric push rod based on the gas saturation inside the mold.

Automotive electric push rod sealing inspection details

3. If the automobile electric push rod is not sealed and air leakage occurs, the leakage value displayed in the instrument will become larger and larger, and the pressure value will decrease at the same time.At this time, it can be determined whether the electric push rod of the car is leaking, and the instrument test result will also show NG, which means the sealing test failed.If the tested automobile electric push rod does not leak, the gas in the tooling mold will be in a constant state after inflation. The pressure value and leakage value displayed on the instrument are also stable. The instrument test result will display OK, indicating that the sealing test has passed.

Car electric push rod sealing test scene display

3. Sealing tester parameters of automobile electric push rods

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