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工程科学与技术:2014,46(3):187-192
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锻造操作机夹持状态分析与夹持力研究
(1.兰州交通大学 机电工程学院;2.兰州兰石重工有限公司)
Analysisof ClampingConditionandResearchofClampingForce About theForgingManipulator
(1.SchoolofMechatronicEng.,LanzhouJiaotongUniv.;2.LanzhouLSHeavyMachineryTechnol. Co.,Ltd)
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投稿时间:2013-12-04    修订日期:2014-03-19
中文摘要: 以被夹持工件的额定重力及重力矩确定钳口的夹持力是锻造操作机夹持装置结构设计的前提。针对传统夹持力确定方法所造成的计算结果误差较大,无法有效指导夹持装置结构设计的问题,分析了锻造操作机的实际应用工况,明确了理论分析与实际应用存在的差异,提出了基于被夹持工件在允许下垂偏转的倾斜状态下进行锻造操作机夹持分析的钳口受力模型。利用受力模型分析了钳口在垂直和水平状态的夹持力,并以此建立了钳口在任意旋转角度的夹持力方程,求解锻造操作机在满足工件下垂偏转条件时钳口对工件的最小稳定夹持力。根据研究结果,以300 kN锻造操作机结构参数为例,计算了夹持装置的钳口夹持力,建立了锻造操作机钳杆在ADAMS环境中的虚拟样机并进行运动仿真,分析结果表明了夹持力计算方法的有效性。
Abstract:On the issues of that the traditional determination method of clamping force has a large error in calculation and failed to guide the construction design of clamping device effectively, the actual application condition of forging manipulator was analyzed and the difference between the theoretical analysis and the practical application was determined to work out a jaw’s mechanical model based on the forging manipulator’s clamping analysis in workpiece’s allowable downward deflection condition. The jaw clamping force in both vertical and horizontal conditions was analyzed with the mechanical model and the clamping force formula of jaw in any rotation angle was established to work out the jaw’s minimum stable clamping force to the workpiece when the forging manipulator meets the workpiece’s downward deflection condition. With the example of the 300 kN forging manipulator’s structure parameters, the jaw clamping force of clamping device was worked out based on the research results, a virtual prototype of the forging manipulator’s claw beam in ADAMS environment was built, and the motion simulation was processed. The analysis result showed the validity of clamping force calculation theory.
文章编号:201301521     中图分类号:    文献标志码:
基金项目:国家科技支撑计划资助项目 (2007BAF28B01);国家自然科学基金资助项目(51265022)
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杨晋,张文波,姜峰.锻造操作机夹持状态分析与夹持力研究[J].工程科学与技术,2014,46(3):187-192.
Yang Jin,Zhang Wenbo,Jiang Feng.Analysisof ClampingConditionandResearchofClampingForce About theForgingManipulator[J].Advanced Engineering Sciences,2014,46(3):187-192.