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Development of Hand Safety Control System for Press Brake CNC Machine Using Laser
- This paper presents a laser control scheme for press brake CNC machine applied to the operator’s safety security. Press Brake Safety System is designed to keep operators safety while operating press brake machines. Fingers, hands, arms and other appendages can be injured or lost due to unsafe press brake operation. This paper consists of three portions such as 1. Laser transmitter with modulated security signal, 2.Laser receiver with demodulator, 3.PIC based control system for CNC machine process control. The laser transmitter and receiver detect operator’s hand and control system determines the safety of operator in operation. The transmitter used a laser pen with modulated signal for security of laser beam. The receiver detects the transmitter’s laser beam and then it demodulated and gave the processing signal to PIC control unit. Control unit access the receiver’s output signal and confirmed it was defined signal or not. It’s also determined the system was safety or not and then produced a control signal to pause the operation of CNC press brake machine.
Kyaw Thu Htet
Maung Maung Latt
Hla Myo Tun