机械设计与制造工程
機械設計與製造工程
궤계설계여제조공정
MACHINE DESIGN AND MANUFACTURING ENGINEERING
2014年
3期
41-44
,共4页
速度转接%S型曲线加减速%自适应前瞻
速度轉接%S型麯線加減速%自適應前瞻
속도전접%S형곡선가감속%자괄응전첨
Speed Transition%S Curve Acceleration/Deceleration%Adaptive Look-ahead
为满足微小线段高速加工的需求,基于微小线段转接处速度对转接夹角大小敏感的特性,提出了一种新的微线段转接算法,在线段拐角处插入转接角的角平分线进行转接,提高了转接处速度,转接处满足误差约束和加速度约束。在分析微小线段各转接处速度大小基础上,算法自适应地分割前瞻段数。针对S型曲线加减速计算复杂的弊端,简化其加减速规律,通过正、反向速度规划,求解最大进给速度,实现微线段段内以及段间的速度平滑。
為滿足微小線段高速加工的需求,基于微小線段轉接處速度對轉接夾角大小敏感的特性,提齣瞭一種新的微線段轉接算法,在線段枴角處插入轉接角的角平分線進行轉接,提高瞭轉接處速度,轉接處滿足誤差約束和加速度約束。在分析微小線段各轉接處速度大小基礎上,算法自適應地分割前瞻段數。針對S型麯線加減速計算複雜的弊耑,簡化其加減速規律,通過正、反嚮速度規劃,求解最大進給速度,實現微線段段內以及段間的速度平滑。
위만족미소선단고속가공적수구,기우미소선단전접처속도대전접협각대소민감적특성,제출료일충신적미선단전접산법,재선단괴각처삽입전접각적각평분선진행전접,제고료전접처속도,전접처만족오차약속화가속도약속。재분석미소선단각전접처속도대소기출상,산법자괄응지분할전첨단수。침대S형곡선가감속계산복잡적폐단,간화기가감속규률,통과정、반향속도규화,구해최대진급속도,실현미선단단내이급단간적속도평활。
In order to meet the requirements for high -speed machining , it proposes a new transfer algorithm of small line segments , which makes the transfer speed sensitive to the angle between two lines .This algorithm in-serts the angle bisector in the corner of two lines to improve the transfer speed , satisfies the error and acceleration constraint .It analyzes the transfer speed of small line segments .The algorithm divides the number of line seg-ments adaptively .According to the disadvantage of computation complexity , the algorithm simplifies the accelera-tion/deceleration control law of S curve .Through forward and backward speed programming, it calculates the maximum feed rate , implements the smooth velocity in a line and between line segments .