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How To Ensure The Efficiency Of CNC Machining
Jul 28, 2017

CNC machining itself is to achieve automation, the liberation of manpower, improve work efficiency, and improve the quality of the workpiece accuracy. So how to ensure the efficiency of CNC processing?


In order to ensure the smooth operation of the machine under the premise of the process to allow acceleration and deceleration of the shortest time is to improve the speed of NC processing the best solution is to study the acceleration and deceleration of the most critical problem.


In general, there are two kinds of acceleration and deceleration control schemes: before and after interpolation and before and after interpolation, we generally call it the former acceleration / deceleration control, the interpolator and the servo control Before the control of the movement of the axis of the feed speed is generally called after the acceleration and deceleration. After the acceleration and deceleration control algorithm is relatively simple relative to the previous acceleration and deceleration, do not need to calculate the deceleration point, but the different axis of the servo gain is not the same, likely to cause accuracy.


Therefore, the current domestic CNC machining are generally used before the acceleration and deceleration control technology, acceleration and deceleration control method can be attributed to the flexible acceleration and deceleration method and the traditional acceleration and deceleration method, the traditional acceleration and deceleration method with trapezoidal acceleration and deceleration method and the index acceleration and deceleration method Method; flexible acceleration and deceleration method with trigonometric function acceleration and deceleration method, S curve acceleration and deceleration method and polynomial acceleration and deceleration method. Conventional trapezoidal and exponential acceleration and deceleration due to the presence of acceleration changes affect the smoothness of motion, flexible acceleration and deceleration due to continuous acceleration, high-speed machining in the much attention.