加速度连续可变的加减速控制规律研究

加减速控制是数控系统插补器的重要组成部分,是数控系统开发的关键技术之一.数控加工的目标是实现高精度高效率的加工,因此,一方面要求数控机床反应快,各坐标运动部件能在极短的时间内达到给定的速度,并能在高速运行中快速准确地停止在预定位置,缩短准备时间;另一方面要求加工过程运动平稳,冲击小.文章介绍了一种加速度连续且可变的加减速控制规律.加速度连续可使速度平稳上升或降低,减少对机床的冲击,保证机床运动的平稳性;加速度可变可提高机床的进给速度.

The Research of the Law of Acceleration and Deceleration which the Acceleration is Variable in Succession

It is the important component of inserting mending device of a numerical control system to add and moderate controlling, it is one of the key technology that the numerical control system is developed . The goal processed in numerical control is to realize the processing with high- efficiency high accuracy, so, on one hand require the numerical control lathe to react fast, every coordinate sport part can reach the speed given definitely within extremely short time , and can stop being booked in the position accurately fast until the high speed run , shorten makeup-time; Require on the other hand that the processing course sport is steady , it is small to assault . This article introduces one of the law of acceleration and deceleration which the acceleration is variable in succession. The acceleration can make the speed rise or reduce steadily in succession, reduce the impact to the lathe , guarantee the stationarity of the movement of the lathe ; The acceleration is variable can improve the entering to the speed of the lathe .