机械5

摘要 本课题研究的是对金属片进行折弯的机构设计，主要是利用曲柄摇杆机构进行往复的直线运动提供冲压力，再结合冲压知识和模具的原理对金属片进行折弯成型。 该折弯机的特点为节能高效，相比冲床而言本设计能方便高效地将金属片进行Z形成型。折弯机可以大批量生产，其产品适用于应用广泛而对精度要求不高的场所。例如相框等墙上装饰品的固定或小型家电在墙面的固定。该折弯机体积较小，节约了空间，节约了制造的成本。本设计有自动上料下料的结构，折弯和送料过程由控制电路控制电机完成，节约了人力。 关键词:金属片Z形折弯；曲柄摇杆机构；折弯机 Abstract The subject of this paper is the mecha
nism desig
n of metal sheet be
ndi
ng,,mai
nly usi
ng the cra
nk rocker mecha
nism for reciprocati
ng li
near motio
nwith pressure,combi
nedwith stampi
ng k
nowledge a
nd the pri
nciple of the die for metal sheet be
ndi
ng moldi
ng. The be
ndi
ng machi
ne is characterized by e
nergy savi
ng a
nd high efficie
ncyparedwith the pu
nch, this desig
n ca
n co
nve
nie
ntly a
nd efficie
ntly form the Z shape of the metal sheet,be
ndi
ng machi
nes ca
n be mass produced.Its products arewidely used i
n placeswith low requireme
nts for accuracy, Such as picture frames a
nd other decoratio
ns o
n thewall fixed or small electrical applia
nces o
n thewall fixed.The be
ndi
ng machi
ne is small i
n size,savi
ng space a
nd ma
nufacture i
n cost.This desig
n has the structure of automatic feedi
ng a
nd u
nloadi
ng,the be
ndi
ng a
nd feedi
ng process is completed by the motor co
ntrolled by the co
ntrol circuit to save ma
n power. Keywords:The sheet metal be
nds i
n a Z shape; Cra
nk a
nd rocker mecha
nism; Be
ndi
ng machi
ne 目录 摘要I Abstract II 第一章绪论1 1.1研究的目的及意义1 1.2国内外发展现状1 1.3折弯机未来发展方向2 1.4设计主要内容2 第二章设计要求计算3 2.1工件尺寸计算3 2.2折弯力计算3 2.3折弯机公称压力行程要求4 第三章压力机构设计5 3.1曲柄摇杆机构设计5 3.1.1曲柄摇杆机构尺寸确定及运动分析5 3.1.2偏心轴设计6 3.1.3摇杆设计7 3.2电机选择8 3.3飞轮设计9 3.4 V带传动设计10 3.5离合器选择13 第四章其它机构设计15 4.1折弯结构设计15 4.2送料机构设计16 第五章总体结构19 5.1总体结构二维三视图19 5.2总体结构三维图21 结论22 参考文献23 致谢24