The drawbacks of the mechanical linear actuator which is applied to punch flexible printed circuit boards(FPCBs), are many components involved, low transmission efficient, and high proportion of energy consumption. In order to design and manufacture a device that can generate a rapid and high quality punching processes, the fundamental rules that can be followed are to use few parts with light weight design, good working piece, energy conserved, and perfect efficient. To improve the kinematic and dynamic characteristics of the existing mechanism, design, manufacture, and assessment are to be taken for developing new linear actuated mechanisms. The first step is to analyze the performance of the existing linkage actuator . The second step is to design a over-head cam mechanism of non-constant rotational speed to substitute the pulley and the rock arm according to the design specifications. The performance of the new type actuated device is superior to the existing mechanism, and this research had preliminary verified the viewpoint of the energy in high speed punching. The achievements of this research also provide references for linear actuator designers and high speed punching producers.

In the past the machinery used in punching of flexible printed circuit boards(FPCBs), it used mostly the rotary motor as the power source in the mechanism design. To transfer rotary motion to linear motion need a succession of mechanical conversion components, in order to achieve the purpose of linear output. However these mechanical parts for transforming bring some unavoidable problems such as the machinery itself huge volume, backlash and friction which created during the action process, all have harmful influences on the system dynamic performance and precision. Voice coil actuator has direct-drive output, high response and high thrust force these characteristics, therefore this research apply voice coil actuator to the punching of flexible printed circuit boards. For present industry, S-curve velocity profile is often used in point-to-point displacement intermittent action applications, due to its jerk-limited characteristic for reducing vibration and raising precision. Then integrating plans of S-curve velocity profile with voice coil actuator based on punching characters, to analyze the whole system dynamic performance in such a vertical linear output application. Then generalizing the dependence of influence factors of punching quality and motion characteristics of punching mechanism through experimental results. The achievement of this research could provide references for some related designers using similar linear actuators in vertical linear output applications.