The Design On The Detection Machine Of The Automobile Cab’s Hydraulic Lock

The main contents are automotive cabin hydraulic lock of the overall development of automatic test equipment, solve low detecting efficiency, low labor efficiency, and low detection accuracy of a series of tests problem the in purely manual or semi-automated, single-position detection process. At the same time, the equipment realized that a device meet the testing requirements of a variety of hydraulic lock, and have more advantages including detection with a higher degree of automation, higher reliability of quality testing, and better human-computer interaction.On the basis to meet the actual detection, focusing on solving the problems including low detection efficiency, detection accuracy is not high, conceived the best feasible technical solution of the overall equipment. For ease of design, the structure of automatic test equipment of hydraulic lock is divided into four subsystems: rotary tooling systems, tension and compression testing system, hydraulic testing system and electric control testing system. By applying theoretical knowledge including modern mechanical design, mechanical principles, sensors and testing technology, gradually designed the best mechanical structure of each subsystem, using the three-dimensional design software SOLIDWORKS designed the three-dimensional structural model of each subsystem.With the finite element analysis software ANSYS WORKBENCH, did the transient dynamics analysis and fatigue life analysis of hydraulic lock detector, and verified the rationality and feasibility of the key mechanical equipment structure design of the device, thus, provided a reliable technical support of the entire design scheme.The characteristics of each subsystem of the detection equipment, hydraulic lock detection technology requirements and production costs were taken into integrated consideration, and then according to the function and structure characteristics of each subsystems and testing technical requirements of hydraulic lock, designed a gas-liquid control scheme. According to the requirements of gas-liquid technology, calculated specific parameters which gas-liquid booster pump need; and according to the technical requirements necessary to detect diameter, calculated the inner diameter and stroke and other parameters of the loading cylinder. According to the mechanical structure characteristics and detection equipment requirements, designed the electrical liquid solutions and the corresponding principle figure, and select the corresponding electrical components. The equipment selected PLC as the Logic Controller. The integrated use of sensor technology and electric control technology realized the automatic detection of hydraulic lock, touch screen realized human-machine interaction and real-time monitoring of test data and other Features. Finally, according to the technical requirements of hydraulic lock detection, we have built a good detector, and did a series of experiments on it. Experimental results show that the detector operated stably, with high reliability and good effect.