| Progresses unceasingly along with the modern science technology and develops, during different discipline's intersecting increases day by day. The modern machine manufacture domain, as a result of the microelectronic technology and computer technology's rapid development and to the mechanical industrial technology's unceasing seepage, the machine-building industry is marching into integrated, automated, precise and the intellectualized new times, is also the inevitable trend which the present will develop. However the traditional buffing machine technology still is very actually backward, some are also even using manual control polishing. Moreover the home regarding the buffing machine is specially the buffing machine's product many are the simple operation, the polishing efficiency low, the secure energy balance. So this topic has done the further research and the design to the buffing machine's control system. Raised buffing machine's working efficiency, saves the cost. Most importantly replaced the traditional manual operation to realize buffing machine's automation, improved its safety performance, moreover increased buffing machine's polishing precision..This topic is by silicon Corporation's C8051F330 as primarily the controller. Community technologies and so on mechanical skill, microelectronic technology, automatic control technology and software programming technology unifies closely. According to system function's goal and the optimized organization goal, reasonable disposition and the layout various functions unit, in multi-purpose, high grade, redundant reliable, in the low energy consumption's significance realizes the specific function value. The control system is mainly includes to polishes the pressure, the polishing time and the polishing rotational speed control. Has the deformation through the power head motor-driven power head downward movement compression spring to be possible with to throw between the compact disc the pressurize. The polishing time's control is uses its internal clock through the monolithic integrated circuit, to polishes the time timed control through own timer. After the timer achieves the polishing time which, requests buffing machine automatic stopping polishing. Simultaneously must cause the organization which the polishing damage level will not affect observes finally, namely will not create the false organization. Therefore this design the speed is momentarily may move in the polishing process, according to the different material, the different shape carries on the corresponding speed regulation. In buffing machine's speed control system, what uses is in the industry commonly used to the electrical machinery both sides armature voltage control. The monolithic integrated circuit planned target potentiometer, changes electrical machinery's armature voltage, thus achieves the control electrical machinery rotational speed the goal.In this design connects through a transmission rod the power head and a potentiometer may achieve like this using the monitor potentiometer both sides voltage change the monitor pressure the goal. Through monitors electrical machinery's armature voltage regarding the rotational speed monitor to obtain the rotational speed value. The system will monitor the pressure, the time and the rotational speed through core controller's processing, demonstrate through the LED. Demonstrating and the pressed key input section system uses actuated the nixie tube and pressed key's BC7281 chip specially through shift register 74HC164, will monitor the parameter to demonstrate one by one. Make the operators the prompt understanding work progress and buffing machine's active status in order to adjust the parameter promptly. Used BC7281 to save master-control unit's resources, raised system's efficiency. |
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