第41卷第9期 Vol. 41No.9
叙压技未
FORGING & STAMPING TECHNOLOGY
双偏心套传动机械摆辗机摆头螺旋线运动轨迹的
形成、变异与控制龚小涛"2，耿佩，张
长雪3
2016年9月 Sep-2016
（1.西安航空职业技术学院教务处，陕西西安710089；2.西安交通大学机械制造系统工程国家重点实验室，
陕西西安710049；3.重庆五一高级技工学校，重庆400042）
摘要：根据摆辑机摆头结构特点，设计了内外偏心套传动失量运动模型，利用Matlab软件对异速同向双偏心套的运动轨迹进行了模拟仿真，当外偏心套转速，>0，内偏心套转速，>0，且，产，时，摆渠机摆头的运动轨迹为螺旋线型，闻述了一个周期内螺能线空间曲线的形成规律，并对影响螺旋线的参数进行了分析。结果表明：螺旋线的起点位于（2R，0）处，运动周期为2，在0-雷时刻，摆头轴端中心点逐渐靠近轴心同时螺旋式上升；在π-2雪时刻，摆头轴端中心点逐渐远离轴心同时螺能式上升；螺能线能转的圈数为β或1/β真分数的分母和分子之差，β或1/β越小，螺能线的重叠部分越少；B或1/B 接近1，螺旋线的重叠部分越多，
关键词：揭动银压；摆头；双偏心套；螺旋线轨迹 DOI: 10. 13330/j. issn. 1000-3940. 2016. 09. 030
中图分类号：TG335
文献标识码：A
文章编号：1000-3940（2016）09-0158-03
Forming,variation and control on spiral trajectory of rocker of rotaryforging
machines with double eccentric sleeve transmission
Gong Xiaotao'-2, Geng Pei', Zhang Xue
(1. Sextion of Teaching Affairs, Xi'an Aeronautical Polytechnic: Institute, Xi'an 710089, China; 2. State Key Laboratory of Mamufacturing Systems Engineering, Xi'an Jiaotao University, Xian 710049, China; 3. Chongqjing Wuyi Senior Technical School, Chongjing 400042, China) Abstract : For the structural characteristics of rxcker of rotary forging, a vector motion model was designed for inner and outer double ec-centric sleeve, and the motion trajectory of double eccentric sleeve with different speeds and the same direction was simulated by Matlab software. When the outer eccentric sleeve speed , >0 and the inner eccentric sleeve speed , >0, as well as , + o2 , the motion trajec-tory of rocker of rotary forging machine was a helical curve. Furthemore, the forming law of helix space curve during a cycle was expoun-ded, and the parameters influencing helis were analyzed. The results show that the starting point of helix locates at (2R, 0) , and the mo-tion cycle is 2. Thus, at the moment of O TT, the center point of rocker shaft end mores backwards to the center of axis gradually and rises spirally , while at the moment of rr 2rr, the center point of roxcker shaft moves towards to the center of axis gradually and rises spi-rally. The spin number of the helix is the difference between the numerator and denominator of the proper fraction of β or 1/p. The smaller
is β or 1/β, the less is the overlap, but when the β or 1/β is closer to 1, the more is the overlap. Key words : rotary rmlling; rocker; double eccentric sleeve; spiral trajectory
摆动辗压简称摆辗，是通过连续局部成形对被加工件实现整体成形的一种回转成形加工技术。摆辗可以实现绿色生产及近净成形加工，并且完成同样成形所需的力大致是传统锻压设备的1/10~1/5
收稿日期：20160309；修订日期：20160720
基金项目：陕西省教育厅科研计划项目（16JK1401）；西安航空职业技术学院20162017年度自选数科研计划项目(16XHKY017)
作者简介：黄小涛（1983-），男，博土研究生，讲师 E-mail: gxt239@ 163. com
摆辗时冲击小、振动小、噪声低、金属容易充填模
摆辗所采用的设备小、投资少、占地面积少、腔，
模具寿命高。摆辗具有成形变形力小、金属纤维分布合理、零件机械强度高等优点，可以广泛应用于锥齿轮、伞齿轮、直齿等生产[
摆辗成形过程中，摆头的运动轨迹对零件的成形精度和摆锯力有重要影响，许多学者对摆头的运动轨迹进行了研究。刘汉费等对波兰PXWP-100C 型摆辗机摆头的运动设计数学依据进行了分析[2]。