摘要
针对整体结构件加工过程中存在的装夹难的问题,提出了一种利用磁粉颗粒传递夹持力的装夹方案。介绍了磁粉夹持系统夹持的基本原理,分析影响磁粉夹持系统夹持力大小的各种因素,确定了磁粉颗粒的摩擦系数、磁感应强度和磁粉填充区域为主要的影响因素。通过实验测定了不同目数的磁粉颗粒的摩擦系数,并利用实验平台测定了电流大小、磁粉填充高度与夹持力大小的关系,根据实验数据确定了磁粉颗粒的目数,得出了磁粉填充高度、电流大小与垂直和水平夹持力的函数关系。
Aim at the clamping difficulties in machining process of monolithic components, an approach of clamping force delivered by magnetic powder particles was submitted. The theory of clamping system of magnetic powder was introduced; system-affect factors were analyzed, in which friction coefficient of magnetic powder particles, magnetic induction intension and magnetic-powder-filled-in area were confirmed as main ones. The friction coefficient of different mesh numbers of magnetic powder particles is determined by experiments, and the connection among clamping force, current and filling height of magnetic powder on an experiment platform is figured out. Mesh numbers of magnetic powder particle were confirmed from experimental data, which lead to definding the functional relation-ship among vertical/horizontal clanping force, current and filling height of magnetic powder.
出处
《机械设计与研究》
CSCD
北大核心
2011年第1期109-111,116,共4页
Machine Design And Research
关键词
磁粉夹持
磁粉
夹持力:磁场
magnetic power clamping
magnetic powder
clamping force
magnetic field
