汽车轮辐专用工装夹具的优化设计

发布时间：2018-01-27 22:26

本文关键词： 汽车轮辐工装夹具优化设计　出处：《机械设计与研究》2016年01期 　论文类型：期刊论文

【摘要】：为了提高汽车车轮轮辐外径面及外端面的加工精度、装夹效率、减轻劳动强度,适应汽车车轮的生产线向自动化、柔性化方向发展需要,优化设计了一种配合立式车床加工汽车车轮轮辐外径面及外端面的专用工装夹具。针对车轮轮辐外径面及外端面的制造工艺特点和优化设计目的,本次设计的优化之处主要有两点:一是工装夹具定位方面,该工装夹具利用轮辐中心孔面及平面定位,采用旋转拉杆夹紧的方式,避免了传统夹具基准不统一带来的轮辐外径跳动偏大且不稳定问题;二是机械结构方面,在车轮轮辐的每个散热孔附近区域加装一个浮动支撑油缸,以提高轮辐在加工过程中的刚度和强度,从而可以避免轮辐外径面失圆的问题。该专用工装夹具使用结果表明:结构和工艺优化设计合理,定位准确、可靠、装夹效率高,操作方便,装夹加工出来的轮辐外径面及外端面精度高,创造了良好的经济效益,并具有良好的通用性。
[Abstract]:In order to improve the machining accuracy, clamping efficiency, reduce labor intensity and adapt to the development of auto wheel production line towards automation and flexibility, the machining accuracy and clamping efficiency of the spoke surface and the outer end face of automobile wheel are improved. This paper optimizes the design of a special fixture for machining the outer diameter surface and outer end face of automobile wheel with vertical lathe, aiming at the manufacturing process characteristics and optimization design purpose of the outer diameter surface and outer end face of wheel spoke. The optimization of this design has two main points: the first is the fixture positioning, the fixture uses the center of the spoke hole surface and plane positioning, the use of rotating pull bar clamping mode. It avoids the problem that the pulsation of the spoke diameter is too large and unstable caused by the inconsistent standard of the traditional fixture. The second is the mechanical structure, in order to improve the stiffness and strength of the spokes in the processing process, a floating support oil cylinder is installed in the area near each heat dissipation hole of the wheel spoke. The result shows that the structure and process optimization design is reasonable, the location is accurate, reliable, the clamping efficiency is high, and the operation is convenient. The precision of the outer diameter surface and the outer end face produced by the clamping process is high, which has created good economic benefits and has good versatility.
【作者单位】：安徽科技学院机械工程学院;淮南师范学院数学系;马可迅(
【基金】：安徽高校省级自然科学研究项目(KJ2011Z080) 安徽高校省级自然科学重点研究项目(KJ2013A239)
【分类号】：U468.2;TG75
【正文快照】： 随着现代汽车业的高速发展,促使汽车的行驶速度与载荷的大幅度提高,而汽车车轮轮辐是汽车行驶系统中的重要部件,车辆的所有载荷都通过螺栓及中心轴传递到轮辐上,承受着拉、压、弯、剪和扭转等交变应力,尤其高速重载的汽车在转弯或紧急制动时,车轮轮辐负荷急骤增加,而车轮轮辐

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