【摘要】：為解決由直線、圓弧與參數(shù)曲線形成的多類(lèi)型曲線段混合插補(bǔ)過(guò)程中的進(jìn)給速度前瞻規(guī)劃問(wèn)題,提出一種連續(xù)多類(lèi)型曲線段進(jìn)給速度前瞻規(guī)劃算法。該算法以預(yù)讀的加工路徑作為進(jìn)給速度規(guī)劃單元,通過(guò)曲線段劃分生成連續(xù)多類(lèi)型曲線段;根據(jù)插補(bǔ)幾何誤差與機(jī)床動(dòng)力學(xué)參數(shù)建立段間銜接點(diǎn)進(jìn)給速度約束;使用三次多項(xiàng)式型進(jìn)給速度曲線,利用解析法精確計(jì)算各曲線段在曲線長(zhǎng)度約束下的進(jìn)給速度參數(shù),以充分發(fā)揮機(jī)床的動(dòng)力學(xué)性能;使用回溯重規(guī)劃策略進(jìn)行全局規(guī)劃,實(shí)現(xiàn)段間速度連續(xù)性;通過(guò)進(jìn)給速度規(guī)劃殘差補(bǔ)償策略降低殘余長(zhǎng)度、提高終點(diǎn)精度。實(shí)例分析表明,該算法能顯著提高終點(diǎn)精度、生成平滑的進(jìn)給速度曲線、降低加工時(shí)間。通過(guò)加工實(shí)驗(yàn)驗(yàn)證了該算法有效、可行,并能充分發(fā)揮機(jī)床的動(dòng)力學(xué)性能。
[Abstract]:In order to solve the problem of forward planning of feed speed in the process of mixed interpolation of multi-type curve segments formed by straight line, arc and parameter curve, a forward planning algorithm of feed speed of continuous multi-type curve segment is proposed. In this algorithm, the pre-read machining path is used as the feed speed planning unit, and the continuous multi-type curve segments are generated by dividing the curve segments; according to the interpolation geometric error and the dynamic parameters of the machine tool, the feed speed constraint of the joint point between the segments is established, and the feed speed parameters of each curve segment under the curve length constraint are accurately calculated by using the cubic multinomial feed speed curve, so as to give full play to the dynamic performance of the machine tool. The backtracking reprogramming strategy is used for global planning to realize the velocity continuity between segments, and the residual length is reduced and the end point accuracy is improved by using the feed speed planning residual compensation strategy. The example analysis shows that the algorithm can significantly improve the end point accuracy, generate a smooth feed speed curve, and reduce the processing time. The machining experiments show that the algorithm is effective and feasible, and can give full play to the dynamic performance of the machine tool.
【作者單位】： 北京航空航天大學(xué)機(jī)械工程及自動(dòng)化學(xué)院;北京市高效綠色數(shù)控加工工藝及裝備工程技術(shù)研究中心;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(11290144)~~
【分類(lèi)號(hào)】：TG659

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 彭芳瑜;李黎;陳徐兵;李斌;;連續(xù)小直線段高速高精插補(bǔ)中的動(dòng)力學(xué)約束條件[J];計(jì)算機(jī)輔助設(shè)計(jì)與圖形學(xué)學(xué)報(bào);2006年12期

2 冷洪濱;鄔義杰;潘曉弘;;三次多項(xiàng)式型微段高速加工速度規(guī)劃算法研究[J];計(jì)算機(jī)集成制造系統(tǒng);2008年02期

3 黃昕;李迪;李方;何英武;;基于雙向掃描算法的小線段速度規(guī)劃[J];計(jì)算機(jī)集成制造系統(tǒng);2009年11期

4 董靖川;王太勇;王自靜;李勃;丁彥玉;蔣永翔;;通用型前瞻速度規(guī)劃算法[J];計(jì)算機(jī)集成制造系統(tǒng);2013年03期

5 王國(guó)勛;舒啟林;王軍;王宛山;;非均勻有理B樣條曲線直接插補(bǔ)進(jìn)給速度規(guī)劃[J];計(jì)算機(jī)集成制造系統(tǒng);2013年06期

6 郭新貴,李從心;一種新型柔性加減速算法[J];上海交通大學(xué)學(xué)報(bào);2003年02期

7 楊林;張承瑞;王科;李鵬;;高速加工中的速度規(guī)劃與段間連接[J];上海交通大學(xué)學(xué)報(bào);2010年01期

8 ;Algorithm for Smooth S-curve Feedrate Profiling Generation[J];Chinese Journal of Mechanical Engineering;2011年02期

【共引文獻(xiàn)】

相關(guān)期刊論文 前10條

1 章永年;趙東標(biāo);劉凱;陳盛;;一種實(shí)時(shí)前瞻的微線段直接插補(bǔ)算法[J];東南大學(xué)學(xué)報(bào)(自然科學(xué)版);2010年04期

2 侯伯杰;周云飛;李小清;;升降速曲線對(duì)直線電機(jī)系統(tǒng)性能影響的研究[J];電氣傳動(dòng);2010年11期

3 牟文平;楚王偉;湯立民;;數(shù)控機(jī)床程序加工時(shí)間的精確仿真技術(shù)研究[J];工具技術(shù);2009年11期

4 周s，

本文編號(hào)：2509199