Based On Virtual Instrument Punching Machine And Automatic Feed Mechanism Of Dynamic Testing System

To meet the engineering's need , the type of JC23-6.3 punch after alteration can send the material automatically. In order to determine the length, speed, acceleration of the sending material and the wallop, at the same time in order to verify the veracity of the dynamic sending machine, it needs to design a dynamic test system.The dynamic test system of punch and its automatic sending machine is designed on the basis of Virtual Instruments in the article. A rotary encoder is installed at the end of the initiative sending roller's axis, pressure pickups are installed on the base of the punch, and the length, speed., acceleration of the sending material and the wallop can be tested. Data acquisition board gathers, measures and conditionings signals from the rotary encoder and the pressure pickups in the system. Display device of personal computer is used to imitate the control panel of traditional instruments to display the gathering data with undee shapes in real time dynamically. Application software of testing is used to calculate, analyze and deal with the signal data. Software realizes the function that only hardware of traditional instruments can achieve.Analysis in theory and results of experimentation on the spot prove that the design of the dynamic test system is successful. The dynamic test system can test the length, speed, acceleration of the sending material and the wallop exactly whenever the crank of the punch is adjusted, and that the results of the testing are different along with the differences of the crank, the prospective target is achieved.