Laser-cutting Clothing CAD/CAM System Research And Design

This paper chiefly expounds the research and design of the system of Laser cutting CAD/CAM. The innovative point of this system is that adopting a new-style control mode to combine graphics-process function of microcomputer with the control function of SCM.Through the comparison of the scheme of mechanical part and the analysis of motion character of stepping motor, combining with the character of rolling guide and belt drive that running smoothly and having high precision, we put forward the method that stepping motor and belt drive the cutting tool. And through dividing the drive circuit of the stepping motor, high precision brings about.The controlling system is composed by AT89C51, data storage and I/O. It affords enough capacity for many data that contain some cutting graph data in order to reduce assistant-time. Stepping motor drive apply a chopper drive circuit. Stepping motor drive uses some function as voltage over-low, over-hot, which can protect the drive. And this raises the reliability the stepping motor. Interception and instruction method is introduced on raiding and inducing of the speed motor. That achieves the purpose of fast position and system stabilization through the symbol and step raising and inducing. In order to easy to transferring cloth in long distance, we put forward a design method of auto adjusting drive. We use the sensor detect the edge of cloth, and feedback to the system. Through the motion of the stepping motor and mechanical part, the system can realize the control of the deviation. Compiling with Visual Basic 6.0, complete the dividing, scaling, and communicating of data and the design of interface. And the data can be divided several passages, the long distance graph can cut in several passages. The system has the auto-adjust and auto cutting repeat excluding the basic motion. The soft of the system possesses the break-point operation, which can save the processed parameter and continue the interrupted operation as starting up again.Using the method of software and hardware enhances the electromagnetic shield of system. It is resulted on experiment that controlling system had advantages of feasibility and reliability. Actuator can be easily controlled by controlling system so as to get high precision.