往复式骨架油封模具自动化设计技术研究.pdf

2015年12月
润滑与密封
第40卷第12期
LUBRICATION ENGINEERING
Vol 40 No 12
DOI:10.3969/.isa.0254-0150.2015.12.016
往复式骨架油封模具自动化设计技术研究
杨化林陶丽娜杜杰王景林黄绪群2
(1.青岛科技大学机电工程学院山东青岛266061
2.烟台润蚨样油封有限公司山东烟台265200
摘要:针对骨架油封模具设计閒期长的问题,通过对往复式骨架油封进行研究,以模具设计为出发点,对模具中8
关键分型线的确定方法进行了研究。并分析了余胶槽、顶杆和相关壁厚等关健地方的变形规律,建立了数学模型。采
用自顶向下的建模方法对模具总体装配及零件进行建模,依据模具设计规则,从油封三维模型的几何特征中提取构成
模具型腔的各个零件及其分型线的关键特征,形成封闭的型腔特征曲面,进而利用这些特征曲面切除装配结构中的各3
8个模板零件内侧特征,获得模具型腔结枃特征,完成模具详细设计。该设计方法实现了骨架油封模具随油封尺寸自动
变形设计,大大提高了设计效率
关键词;往复式骨架油封;型腔;切除;关联
中图分类号:TB42文献标志码:A文章编号:0254-0150(2015)12-084-06
Research on Mould Automation Design Technology of
Reciprocating Skeleton Oil Seals
YANG Hualin TAO Lina DU Jie Wang Jinglin Huang Xuqun
(I School of Mechatronics Engineering, Qingdao University of Science and Technology
Qingdao Shandong 266061, China; 2. Yantai Runfuxiang Oil Seal Co, Ltd, Yantai Shandong 265200, China)
Abstract On questions of long mould design cycle about reciprocating skeleton oil seal, started with the mould design
by studying the reciprocating skeleton oil seal, the determination method to the key mould parting line was researched. The
deformation law about residual glue tank and ejector and relative wall thickness and other key parts were analyzed, and the
mathematical model was established. The top-down modeling method was used to establish the overall assembly and parts
model. According to the mold design rule, the key features of each part of the mold cavity and its parting line were extracted
from the geometric features of the oil seal 3D model, and the characteristics of the inner parts of the template parts were
formed By using these features to remove the internal characteristics of the various parts of the assembly structure, the mold
cavity structure characteristics were got, and the mold design was completed. The design method can realize the automatic
deformation of the skeleton oil seal mould with the size of the oil seal, which greatly improves the design efficiency.
Keywords: reciprocating skeleton oil seals; cavity; removal; relevance
机械设备的正常运转和性能的良好发挥,与密封外泄漏,同时防止外部灰尘等杂质进人设备内部,都
结构的设计、密封元件的密封性能息息相关。油封因要使用往复油封4。往复式骨架油封与一般油封相
其结构简单、紧凑、性能可靠、有广泛的适应性,而比,具有形状复杂、外形尺寸精度高等特点。而能否
成为最常用的密封件之ー。油封是一种依靠其柔性获得合格的往复式骨架油封产品,关键在于模具设计
唇密封刃口部位抱紧轴而产生密封作用的密封圈]。制造,模具结构的好坏将直接影响产品质量,模具
其功用在于把油腔与外界隔离,对内封油,对外防结构应保证将胶料控制在设计范围内?。
尘
近年来,骨架油封的模具结枃发展迅速,主要特
在装有往复轴的设备中,要防止内部润滑介质向点就是由四开和三开模逐渐过渡到二开模。与传统四
开和三开模相比,二开模具有开合模方便,能自动去
*基金项目:山东省自然科学基金项目(ZR2014EL011)
除产品飞边,获得的产品质量好等优点?。目前国内
收稿日期:2015-01-19
往复式骨架油封模具一般采用半封闭式结构门,开模
作者简介:杨化林(1975-),男,副教授,从事机械CAD/知方式一般采用二开模,这样有利于产品质量和生产效
识工程等研究.E-mail:yanghualin(@gmail.com
率的提高。