大型数控研配液压机上模翻转系统设计  

The upper die rotational system of the large die spot hydraulic press

作　　者：翟华[1] 刘燕飞 李贵闪 

机构地区：[1]合肥工业大学机械与汽车工程学院,安徽合肥230009 [2]空军驻安徽地区军事代表室,安徽合肥230031 [3]合肥锻压集团有限公司,安徽合肥230022

出　　处：《重型机械》2008年第6期40-42,共3页Heavy Machinery

摘　　要：新型大型模具研配液压机上模翻转系统采用动梁油缸和铰链组合机构实现重型模具的翻转,方便了工人的操作。采用图解法分析计算了翻转系统中油缸的伸长量和上模翻转板旋转角度之间的变化以及相应的运动、受力和角速度变化。分析结果表明,上模翻转过程中作用在油缸活塞上的力由拉力变成压力,在油缸活塞伸出速度一定的情况下,翻转板角速度在初始时刻变化缓慢,但到了90°后显著变大。The combination of the moving cylinder and linkage used in new type upper rotational mechanism of large die spot hydraulic press can fulfill the task of overturning heavy dies, which, at the same time, facilitates the operator. Some results have been calculated based on the diagram analysis, including the relation between the elongation of the cylinder and the rotational angle of the overturning pallet, and the variety of the corresponding kinematics, load and angular speed. The result indicates that the load of cylinder will be tensile at the pallet angle from 0° to 90°. Under the condition of certain elongation of piston cylinder, the angular speed will enhance dramatically after 90° while it increases slowly when less than 90°. The paper gives directions to the development of the control system of the large die spot hydraulic press.

关 键 词：液压机 研配 机构 

分 类 号：TH123.1[机械工程—机械设计及理论]