Multi-station pressure calibrating device

Abstract

The invention provides a multi-station pressure calibrating device and belongs to the field of calibrating equipment. The multi-station pressure calibrating device comprises a fixture. Multiple groupsof matched relays, electrical boxes, male connectors, female connectors, first indicator lights and second indicator lights are arranged on the fixture; a pressure sensor is arranged in each electrical box; a pressure sensor is electrically connected with an electrical board; the fixture is arranged in a vacuum box; the vacuum box is connected with an external vacuumizing device. Multiple parallel stations are provided, so that multiple workpieces can be calibrated at a time; observation is convenient, and efficiency is high.

Description

Technical field [0001] The invention belongs to the field of auto parts tooling equipment, and relates to a multi-station air pressure calibration device. Background technique [0002] Economic development has brought about the deterioration of the environment to a certain extent. The application of automobiles is becoming more and more popular. Fuel vehicles will emit a lot of exhaust gas during operation, causing environmental pollution, but the economy is moving forward. , While ensuring the development of automobiles, how to ensure that the environment is a continuous improvement project. The application of electric vehicles has improved the problems existing in traditional fuel vehicles. Electric vehicles are clean, pollution-free, and have zero emissions. Whether electric vehicles or traditional vehicles, the braking system will be Vacuum pump is used for copy braking. If direct mechanical braking is required, a lot of braking power is required. Long-term operation will cau...

AI Technical Summary

Problems solved by technology

[0002] The development of the economy, to a certain extent, brings about the deterioration of the environment. The application of automobiles is becoming more and more popular. During the operation of fuel vehicles, a large amount of exhaust gas will be emitted, causing environmental pollution, but the economy is developing forward. How to ensure the environment while ensuring the development of automobiles is a continuous improvement project. The application of electric vehicles has improved the problems existing in traditional fuel vehicles. Electric vehicles are clean, pollution-free, and zero-emission. Whether electric vehicles or traditional vehicles, the braking system will Vacuum pumps are used for duplicative braking. If direct mechanical braking requires a large braking force, long-term operation, insufficient human strength, and easy driving fatigue, the safety factor has been improved, and the vacuum pump has been added to achieve braking buffering. , making the braking operation more labor-saving, braking softer, and running more stable. The vacuum pump of a traditional car uses the engine as a vacuum source, but a pure electric car cannot obtain a continuous vacuum source because it has no engine. The current practice is to set a vacuum tank. When When it is detected that the air pressure of the vacuum storage tank is lower than the set threshold, the alarm switch outputs a switch signal, and supplies power to the vacuum pump through the delay relay for a period of time. During the power supply period, the vacuum pump continues to work, and then the delay relay is disconnected, and the vacuum pump stops working. , continuous cycle, which requires numerical calibration of the air pressure of the vacuum pump controller. At present, when performing other calibrations, it can only be operated independently, and the work efficiency is low.

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