The Research Of Testing Equipment For Stationary Strength For Hydraulic Disc Braking Caliper

With the increase of the product quality, the past testing equipment which was used to inspect the stationary strength of braking caliper on line can't meet the requirement of product precision. The efficiency is the most important to the experimental equipment on line and the quality is little considered, so the disputed production maybe constant. Aim at this phenomenon, the present equipment can't make right result. So the enterprise must design advanced testing equipment. Combining with the certain product firm, I development a set of testing equipment for testing the stationary strength of braking caliper to accommodate with situation now. The equipment operates easily,precisely and meet the requirement of enterprise.The equipment is designed according to the QCT/592-1999 standard. The control system includes shearing mechanical,pressure-regulating device,braking fluid-supplied mechanics and SIEMENS PLC control system. The testing quality lies on the precision of torque and the caliper force. The braking torque is realized by the internal mechanics of shearing device, so this part design start with caliper fixture and power driving parts. The pressure-regulating system is realized by caliper force, so this part is accomplished by two steps including brief and careful regulating course. The braking fluid-supplied system design emphasize on the recall and store of braking fluid.The control system of testing system emphasizes on the SIEMENS PLC and inspects the automation of equipment. The part includes module configuration and program-written, meanwhile choose suitable sensor and driving circuit when absorbing past experience. The part can observe the data real time and signal variation, and make the operator master the testing course combined with interface.At last, the thesis will finish the two-dimensions drawing and three-dimension assembly of the testing equipment, and accomplish the pneumatic driving pipeline,program-written of SIMENS PLC control system and the connection between PLC and electromagnetic valves. After designing it, the equipment can strengthen the conviction of enterprise,improve product quality and enterprise fame. It also can provide the applying platform for the testing equipment.