ABSTRACT
The paper derives from a practical application’s subject—development of a Break Master cylinder Detection System.the system is a test equipment which applied to Auto Parts Enterprise ,according to the nation’s relay Automotive Industry standand that mainly for the detection of Automotive Hydraulic Braking System Break Master cylinder Comprehensive performance.the system use computer control and Mechatronics technolog人y, achieve the Purpose of factory scene assembly line detection.the first four detection Processes use omron PLC and Touch Screen,the last detection Processe use Industry Computer and labcard. PLC and labcard (include Data Acquisition Card and Motion Control Card) were mainly carry through the work of scene control and data collection include press and Displacement, the Touch Screen communication with the PLC to make the equipment to auto run.,the industry PC With control Software that was writen by Visual C++ language ,through PCI Bus control the Data Acquisition Cardand Motion Control Card fufill Monitoring,and data collecton\display.
First ,with the request of the technology , The paper discussed some detection methods, combine with the domestic industry condition ,accroding to the relay standand and the request of the Manufacturers fixed the Break Master cylinder’s Detection item.(include empty displacements,dynamic leak, Negative pressure leak, low pressure leak, Negative pressure leak with Oil Cup,High Pneumatic leak and High hydraulic leak ),fixed the detection that combine the Pneumatic test with Liquid oil test,describe the design of the whole device. confirm the device’s mechanical system,electronic control system, Pneumatic control system, Meet the demands of automatic detection and visual detection ,fufill the data live display and feature curve dynamic draw ,the system also support automatic beyond pressure gauge alarm and products quality evaluation , data Store, data search 、print,and feature point catch and so on .
Keywords: Brake Master cylinder, detection, Pneumatic test、Liquid oil test,PLC and Industry PC