自动制钉机的设计毕业设计说明书.docx
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1、自动制钉机的设计摘要自动制钉机最初的宗旨是把废旧钢筋制成能够用在很多场合的钢钉的一种机器。目前,建筑业迅速发展,钢钉作为建筑过程中必不可少的产品,其需求量也越来越大,为满足需求,设计出一款能够提高生产效率、安全系数高的自动制钉机显得十分有意义。本文设计的自动制钉机是在已有设计的基础上,对一些执行机构进行改进,使它同样能达到制成钢钉的目的。本文设计的制钉机中,主要包括原动机、传动部分和执行部分。其中,原动机选用型号为Y132s2-2的直流电动机,其额定功率控制为7.5KW,额定转矩2.3N m;传动部分使用单级圆柱齿轮传动减速器进行减速,运动经蜗轮蜗杆或圆柱形凸轮机构传递给各执行机构;执行部分主
2、要有:校直送丝部分、剪断部分、冷挤钉尖部分、夹紧钢丝部分和冷锁钉帽部分。其中,对于执行部分,校直送丝部分由槽轮机构和摩擦轮组成,剪断部分由曲柄滑块机构来实现,冷挤钉尖部分和夹紧钢丝部分都由圆柱凸轮机构实现,冷锁钉帽部分由曲柄滑块机构实现。三者结合在一起,完成钢钉的制造。在本文的设计中,所制造钢钉的长度为3075mm,钢钉直径为1.8-3.4mm,生产率为320枚/分钟,能承受的剪断力最大为2500N,冷锹力最大为3000N,这些数据满足生产要求。关键词:制钉机;槽轮机构;圆柱凸轮机构;齿轮;设计Design of automatic nail machineAbstractThe origin
3、al purpose of the automatic nail making machine is to make the scrap steelbars into steel nails that can be used in many occasions. At present, the constructionindustry is developing rapidly. Steel nails, as an indispensable product in the constructionprocess, are in increasing demand. In order to m
4、eet the demand, it is very meaningfuldesign an automatic nail making machine that can improve production efficiency and highsafety factor. The automatic nail making machine designed in this paper is based on theexisting design and improved some actuators so that it can also achieve the purpose ofmak
5、ing steel nails.The nail making machine designed in this paper mainly includes prime mover,transmission part and execution part. Among them, the prime mover uses a motor ofmodel Y132s2-2,the rated power of the motor is 7.5KW, and the rated torque is 2.3N , m.In terms of transmission system, single-s
6、tage cylindrical gear drive reducer is used toslow down, and the movement is transmitted to each actuator through worm gear orcylindrical cam mechanism. the execution parts mainly include: straightening wirefeeding part, cutting part, cold extruding nail tip part, clamping steel wire part and coldhe
7、ading nail cap part. Among them, for the execution part, the straightening wire feedingpart is composed of a sheave mechanism and a friction wheel, the cutting part is realizedby a crank slider mechanism, the cold extruded nail tip part and the clamping wire part arerealized by a cylindrical cam mec
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