机械5

铰链组件冲压模具设计与制造 摘要 本次设计的题目为汽车支架弯曲件复合模和弯曲模—采用的材料是镀锌钢带，厚度为1mm。 本设计对模具设计思路以及结构特点进行了较全面的论述。结合模具发展现状以及冲压模具设计的主要技术，对汽车支架弯曲件进行了较详细的工艺分析；进行了冲压力、压力中心、模具工作部分尺寸等冲压工艺计算；对卸料装置、定位装置、导料装置等模具结构形式进行了选择；根据工艺计算结果以及模具结构，对模具主要零部件进行了设计；对压力机进行了合理选择。 由于汽车支架弯曲件结构一般，对称.对精密度要求一般，在设计过程中充分考虑到定位板中心轴孔的对称度要求，以及材料的平整度和模具的工作强度。为了提高生产率和保证工件的尺寸精度，所以决定采用复合模生产。根据冲片的结构，决定采用倒装式结构和弹性卸料，导料销导料，挡料销挡料。随后，在进行零件弯曲。因为本零件结构一般，弯曲工艺不难，可一次成型，但是由于零件尺寸较小，弯曲角度大，所以其弯曲凸模会很小，可能强度不够，需要进行讨论。 本次一共设计了两副模具，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，采用挡料销挡料，导料钉导料，卸料方式为弹性卸料，弹性元件为橡胶。 第二副模具为弯曲模，其对产品的定位为定位板，凸模在上，产品向上弯曲，角度为180度，需要进行矫正弯曲，且冲压速度不可过快，否则将会使其中一侧由于惯性导致了不需要的弯曲。 关键词：汽车支架弯曲件复合模弯曲模倒装材料高利用率校正弯曲 ABSTRACT Compou
nd die is a die structure of pu
nchi
ng, pu
nchi
ng, pu
nchi
ng a
nd other processes i
n a pu
nch. The productio
n batch compou
nd die ca
n improve the productio
n efficie
ncy, the larger the productio
n batch, the more importa
nt to improve the productio
n efficie
ncy. The precisio
n of stampi
ng partswhe
n the size precisio
n of the stampi
ngworkpiece or the positio
n accuracy of thewith a
nd degree of symmetry, the compou
nd die should be co
nsidered. The
number of composite process of composite process is less tha
n four processes, more processwill lead to the mold structure is too complex, a
nd the stre
ngth, stiff
ness a
nd reliability of the moldwill decrease, ma
nufacturi
ng a
nd mai
nte
na
nce more difficult. The size of the die structure is differe
nt, the structure a
nd platewill have the differe
nce, a
nd the strippi
ng device is differe
nt. Be
ndi
ng die, the be
ndi
ng process is accordi
ng to the
need of the shape of the part, the stampi
ng process method of theworkpiece is made by the die a
nd the press. Be
ndi
ng die is a
n importa
nt basic equipme
nt of be
ndi
ng process. The structure of be
ndi
ng die is similar to the ge
neral bla
nki
ng die, it co
nsists of two parts, it co
nsists of co
nvex, co
ncave die, positio
ni
ng, guide a
nd faste
ners, but the be
ndi
ng die has its characteristics, such as co
nvex, co
ncave a
nd
normal actio
n, sometimes
need to swi
ng a
nd rotate. The be
ndi
ng die structure should be selected accordi
ng to the shape, accuracy requireme
nts a
nd productio
n batch. The graduatio
n desig
n topic for claw pole motor support compou
nd die—zhuaji motor support used material is sece galva
nized steel strip. I
n this desig
n, the die desig
n idea a
nd structure characteristics are discussed more comprehe
nsively. Combi
nedwith the developme
nt status of die a
nd the mai
n tech
nology of stampi
ng die desig
n, the strut member motor support is a
nalyzed i
n detail. The stampi
ng process calculatio
n of ram pressure, pressure ce
nter, die parts size, etc.; The die structure of the u
nloadi
ng device, positio
ni
ng device, stock guide device is selected; Accordi
ng to the process calculatio
n results a
nd die structure, the mai
n parts a
nd compo
ne
nts are desig
ned; The reaso
nable choice of press. Because of the ge
neral structure of the claw pole motor support, the precisio
n requireme
nt is higher, fully co
nsidered the symmetry requireme
nts of the Rotor/stator ce
nter shaft hole i
n the desig
n process, a
nd the flat
ness a
nd theworki
ng stre
ngth of the mold. I
n order to improve the productivity a
nd e
nsure the size accuracy of the lami
natio
n, the compou
nd die is used. Accordi
ng to the structure of lami
natio
n, the flip-over type structure a
nd elastic u
nloadi
ng, daoliaoxiao stock guide, stop pi
n da
ngliao. Subseque
ntly, the part is be
nt. Because of the structure of this part, be
ndi
ng process is
not difficult, ca
n be formed o
nce, but to reduce the
number of parts. The spri
ngback is reduced by adjusti
ng the be
ndi
ng method. Keywords: pole compou
nd diewith high precisio
n material. 目录 摘要I ABSTRACT II 1.前言3 2.绪论4 2.1模具技术的历史与发展水平4 2.1.1模具CAD/CAM技术状况4 2.1.2模具设计与制造能力状况4 2.2模具在现代工业中的地位4 2.3模具工业在国民经济中的地位5 3.零件的冲压工艺性分析6 3.1材料6 3.2工艺方案的确定8 3.3影响排样的因素10 3.4排样图设计步骤11 3.5材料利用率的计算12 5.有关工艺计算13 5.1冲裁力的计算及冲床的选择13 5.2压力中心的计算16 6.定距方式17 7凸模，凹模设计18 7.1凸模的结构设计18 7．2凸模，凹模刃口尺寸的计算20 7.3凹模设计21 8.冲压模具零件的编制22 8.1凹模板加工工艺过程23 8.2凸模加工工艺过程24 8.3卸料板加工工艺过程24 8.4凸模固定板加工工艺过程25 9.卸料装置的设计26 9．1卸料装置的设计26 9．2垫板27 9．3模架28 9．4紧固与安装要求29 9.5复合模合弯曲模的结构分析30 9.6复合模总装图31 9.7弯曲模总装图32 10．材料的选用33 结论34 参考文献35