模具研配翻转紧固压板螺栓数量的计算研究  

Study on the number of bolts in the flipped fastening clamp for die spotting

作　　者：慈龙尚[1] 刘道兵[1] 彭英文[1] 马刚良[1] 虞帅[1] 

机构地区：[1]安徽江淮汽车股份有限公司乘用车制造公司,安徽合肥230601

出　　处：《模具技术》2014年第4期23-25,53,共4页Die and Mould Technology

摘　　要：通过建立三维模型,模拟了冲压模具研配翻转中模具、机床翻转板和连接紧固螺栓的装配,分析了工作时的受力情况和运动趋势。推导计算了某上模具研配翻转工作中所需紧固螺栓数量,并应用第三强度理论推导计算了紧固螺栓拧紧后对工作面所产生的正压力。指出模具研配翻转滑移的原因是螺栓拧紧后基于接触面正压力值的摩擦力之和不能平衡上模具重力,为确保研配翻转功能安全使用,应在研配机床翻转板和模具安装底板上设计加装平键,并配合紧固螺栓使用。Using a three-dimensional assembly model of the stamping die,the spotting flipped fastening clamp and the bolt connections,the interaction forces and the movement trend during the die spotting process are analyzed.The number of bolts required in the spot-ting process is calculated.The normal pressure of the tightening bolts is deduced by the third strength theory.When the friction on the contact surface is less than the gravity of the die, the die slip will occur in spotting process.As the auxiliary mechanism of the bolts,flat keys should be installed on the spotting flipped clamp and the die base plate to ensure the security during the spotting process.

关 键 词：模具研配 紧固螺栓 正压力 滑移 

分 类 号：TG386[金属学及工艺—金属压力加工]