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1)  frame-shaped components with thin walls
薄壁框类件
2)  thin wall component
薄壁类零件
1.
Aiming at the problem of noise in the thin wall component, which causes a considerable proportion of noise in automobiles, a low noise analysis system for the thin wall component is developed.
针对汽车噪声中汽车发动机薄壁类零部件的辐射噪声所占的能量比重较大的问题,作者开发了薄壁类零件低噪声分析系统。
3)  sleeve type parts with thin wall
薄壁套类零件
1.
It is an important aspect to avoid the deformation of the sleeve type parts with thin wall and keep their held accuracy as the clamp chuck was designed.
薄壁套类零件的装夹变形和夹持精度,是夹具设计时需重点关注的问题。
4)  Class sets of large thin-walled workpieces long
薄壁大长套类工件
5)  thin-walled part
薄壁零件
1.
Based on it,a dynamic force model for milling process of thin-walled parts is established using a two-freedom elastic-damping system by considering the dynamic characteristics of the tool subsystem and the workpiece subsystem.
在此基础上,采用两自由度弹性-阻尼系统,建立了适合薄壁零件的综合考虑刀具子系统和工件子系统动态特性的动态铣削力模型。
6)  Thin-wall parts
薄壁零件
1.
This paper analyses the relation between the cutting force and cutting depth in the course of belt grinding,builds the mathematics model of optimum cutting parameter to improve efficiency and intensity,and proposes the processing method for controlling griding precision of rotary thin-wall parts.
通过实验分析了带轮磨削过程中切削力和切削深度之间的关系,从提高切削效率和强度出发,选择优化切削参数,建立了切削参数数学模型;提出了控制回转形薄壁零件磨削精度的加工方
2.
As to the problem of cutting chatter found in the course of thin-wall parts milling,a theoretical model with regard to milling charter was established to conduct modal analysis experiments and milling experiments with a view to obtaining dynamic performance parameters of the system and milling force coefficient.
针对薄壁零件在铣削加工过程中存在的切削颤振问题,建立了铣削颤振理论模型,进行模态分析试验和铣削加工试验,获取系统动态性能参数和铣削力系数。
3.
The causes of deformation,size out-of-tolerance and collidings of the annular thin-wall parts produced by copper alloy extrusion materials are analyzed,and through production experiment,the reasonable process has be determined,which can reduce the production cost and improve product quality.
分析了利用铜合金挤压材加工环状薄壁零件生产过程中产生变形、尺寸超差、磕碰的原因,并通过生产实验确定了合理的加工工艺路线,降低了生产成本,提高了产品质量。
补充资料:薄壁件拉深切边模
在冲压生产中,经常遇到无凸缘壁件的拉深加工,如果薄壁件形状较为复杂,在冲模设计中就要解决两个主要问题:(1)因出料要求凹模不能采用整体形状,但由于工件开头复杂,凹模需整体加工,这个矛盾在设计中应予以考虑。(2)由于拉深件下料进要留出修边量,故在拉深后应有切边工序,无论在车床上用专用夹具加工还是留修边最后磨削加工,都趣在效率低,易破坏工件外形等问题。

我厂生产的YJH256液力变矩器泵轮外环(见图1),就属于此种类型零件,为适应生产需要,设计了如图2所示的拉深模具。
 



1.下接盘 2.顶杆 3.压料板 4.导向装置 5.连接圈 6.上接盘 7.凹模板 8.压块 9.上出料装置 10.退料圈 11.上模座 12.凸模 13.下出料装置 14.切边环 15.凸模座 16下模座


工作原理:(1)顶杆2推出压料板3,压在凹模块7上。(2)凹模整体(凹模块7,连接圈5,上接盘6,压块8,退料圈10,上模座11)下降,工件成形,降至切边环刃处,切掉凸缘。(3)凹模抬起,同时油压机上缸活塞顶出,上出料装置9下压退料圈10下行,工件退出凹模。(4)下出料装置13中的弹簧顶出推杆,将切边余料从切边环上退出。

设计中的注意事项:(1)由于出料要求,凹模采用分体式,但要整体加工,故退料圈10应现与上接盘6配钻螺孔,装配后与凹模块7一起进行车削。(2)连接圈5与凹模块7制成分体式,凹模块磨损后可更换。(3)切边环采用工具钢制造,要求淬火,并采用见风使快换嵌入式。(4)此装置应带有导向机构。

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