机械5

合页冲压件的冲孔落料、弯曲复合模具设计与制造 摘要 本次的设计题目为合页冲压件复合模和弯曲模—采用的材料是Q235。 本次的设计对模具的设计的思路和结构特点展开较全面的论述和讲解。结合模具的发展的现状和冲压模具设计的主要技术内容，对合页的冲压件进行的较详细工艺的分析；进行的冲压力、压力中心和模具工作的部分尺寸等冲压工艺的计算；对卸料装置、定位装置和导料装置等模具结构的内容进行的选择；根据工艺计算的结果的和模具的结构，对模具的主要零件的结构进行的设计；对压力机的结构进行的合理选择。 由于冲压件的弯曲件的结构处于一般，对称和对精密度的要求的一般，在设计的过程中充分的考虑到定位板的中心轴孔的对称度的要求，另外材料的平整度和模具的工作的强度。为了提高模具生产的效率和保证零件的尺寸精度，则决定采用复合模的生产形式。根据冲压件的结构，决定采用的倒装式结构，弹性卸料，导料销导料和挡料销挡料。之后，在进行零件的弯曲。因为本零件的结构的一般，弯曲工艺的不难，可一次进行成型。 本次一共设计了两副模具的结构，第一副为落料冲孔复合模，采用的是凸凹模和卸料板在下的倒装结构，凸模，凹模在上，冲孔废料直接从凸凹模的漏料孔掉下，制件卡在凹模中，由顶件器将产品从凹模中顶出，采用挡料销结构挡料，导料结构钉导料，卸料方式为弹性卸料装置，弹性元件称为橡胶。 第二副模具为弯曲模类型，其对产品的定位为定位板，凸模在上，产品向上弯曲，角度为九十度。 关键词：合页冲压件复合模弯曲模倒装材料高利用率 Abstract The desig
n topic of this project is compou
nd die a
nd be
ndi
ng die for hi
nge stampi
ng parts - the material used is Q235. The desig
n of the die desig
n ideas a
nd structural characteristics of a more comprehe
nsive expositio
n a
nd expla
natio
n. Based o
n the developme
nt of die a
nd the mai
n tech
nical co
nte
nt of stampi
ng die desig
n, the detailed process a
nalysis of the stampi
ng parts of the joi
nt sheet was carried out; the calculatio
n of stampi
ng process such as stampi
ng force, pressure ce
nter a
nd part size of die work was carried out; a
nd the co
nte
nts of die structure such as u
nloadi
ng device, positio
ni
ng device a
nd guide device were carried out. Selectio
n; Accordi
ng to the results of process calculatio
n a
nd the structure of the die, the structure of the mai
n parts of the die is desig
ned; a
nd the structure of the press is reaso
nably selected. Because the structure of the be
ndi
ng part of the stampi
ng part is i
n ge
neral, symmetry a
nd precisio
n requireme
nts are ge
neral, the symmetry of the ce
ntral axis hole of the positio
ni
ng plate is fully take
n i
nto accou
nt i
n the desig
n process, a
nd the smooth
ness of the material a
nd the worki
ng stre
ngth of the die are also take
n i
nto accou
nt. I
n order to improve the efficie
ncy of die productio
n a
nd e
nsure the dime
nsio
nal accuracy of parts, it is decided to adopt the productio
n form of compou
nd die. Accordi
ng to the structure of stampi
ng parts, the i
nverted structure, elastic u
nloadi
ng, guide pi
n a
nd stop pi
n are adopted. After that, the parts are be
nt. Because the structure of this part is ge
neral, the be
ndi
ng process is
not difficult, a
nd it ca
n be formed at o
ne time. This time, two sets of die structure were desig
ned. The first o
ne is bla
nki
ng pu
nchi
ng compou
nd die. The reverse structure of pu
nch a
nd co
ncave die a
nd dischargi
ng plate is adopted. The pu
nch a
nd co
ncave die are o
n top. The waste material of pu
nchi
ng is directly dropped from the leaki
ng hole of pu
nch a
nd co
ncave die. The workpiece is stuck i
n the co
ncave die. The product is ejected from the co
ncave die by the ejector a
nd the stop pi
n is used. Structural retai
ni
ng material, structural
nail guide material, u
nloadi
ng mode is elastic u
nloadi
ng device, elastic compo
ne
nts are called rubber. The seco
nd pair of dies is the be
ndi
ng die type. The positio
ni
ng of the product is the positio
ni
ng plate. The pu
nch is o
n the top, a
nd the product be
nds upward with a
n a
ngle of 90 degrees. Key words high utilizatio
n rate of i
nverted material i
n be
ndi
ng die of compou
nd die for hi
nge stampi
ng parts 目录 摘要1 Abstract 3 1.前言7 2.绪论8 2.1模具技术的历史与发展水平8 2.1.1模具CADCAM技术状况8 2.1.2模具设计与制造能力状况8 2.2模具在现代工业中的地位8 2.3模具工业在国民经济中的地位9 3.零件的冲压工艺性分析10 3.1材料10 3.2零件结构10 3.3工艺方案的确定11 4.零件排样的设计13 4.1影响排样的因素13 4.2排样图设计步骤14 4.3材料利用率的计算15 5.有关工艺计算16 5.1冲裁力的计算和冲床如何选择16 5.2压力中心的计算19 6 .定距方式20 7.凸模凹模结构和安装20 7.1凸模，凹模设计20 7.1.1凸模的结构设计20 7．1.2凸模，凹模刃口尺寸的计算22 7.2凹模设计23 8.冲压模具零件的编制24 8.1凹模板加工工艺过程24 8.2凸模加工工艺过程25 8.3卸料板加工工艺过程26 8.4凸模固定板加工工艺过程27 9.?卸料装置的设计28 9．1卸料装置的设计28 9．1．1垫板29 9．1．2模架29 9．1．3紧固与安装要求30 9.2复合模合弯曲模的结构分析31 9.3复合模总装图32 9.4弯曲模总装图33 10．材料的选用34 11．结论35 参考文献36