文档介绍：H1105W柴油机气缸体工艺及工装设计
摘要:柴油机气缸体是机器和部件的基础零件,它将机器和部件中所有零件连接成一个整体,并使之保持正确的相互位置,完成必需的运动。气缸体的加工质量直接影响着机器的性能,精度和寿命。该零件是典型的箱体类零件,箱体类零件尽管形状各异,尺寸不一,但是它们均有空腔,结构复杂,壁厚不均等共同特点,在箱壁上既有许多精度较高的轴承支撑孔和平面需要加工,又有许多精度较低的紧固孔需要加工。因此,气缸体不仅需要加工的部位多,而且加工的难度也较大。
本课题是对柴油机气缸体进行工艺设计和夹具的设计。在对此气缸体的工艺设计中为减少箱体在加工过程中的误差,我们考虑基准的重合原则,统一原则,互为基准原则以及粗基准的选择原则,为使定位稳定夹紧可靠,要求所选用的粗基准尽可能不重复使用原则。在夹具设计中,设计的主要思路是把原有的多道工序的单孔加工改为多孔同时加工,这样设计主要是为了解决由多次装夹引起的定位误差问题,保证了孔的位置精度,同时提高了生产效率,降低了工人的劳动强度。
关键词:气缸体;工艺;夹具
本设计来自:完美毕业设计网
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ZH1105W cylinder diesel engine of Technology and Equipment Design
Abstract: The diesel engine cylinder block is the basis of machinery parts ponents, machinery ponents will all parts connected as a whole, and maintaining the correct location of each other, plete the necessary movement. Cylinder-processing machines direct impact on the quality of the performance, precision and life. The parts is a typical box parts, tank parts despite various shapes, different sizes, but they are hollow, complex structures, such as uneven thickness mon characteristics, both in the box walls of many high precision Bearing the hole and the plane need to support the processing, there are many precision fastening the lower-processing needs. Therefore, the cylinder of the need not only the processing site, but also the difficulty of processing larger.
The design of the diesel engine cylinder of a process analysis and design of the fixture. In this cylinder of a side order of two of its sales target to limit its six degrees of freedom. in order to reduce processing error in the process, we consider the benchmark coincidence principle, the principle of unity, the principle of mutual benchmark crude benchmark, as well as the choice of principle, in order for the positioning and stability clamping reliable, requested by the selection of benchmark crude, as far as possible not to repeat The use of principles. In fixture design, the design of the main ideas is to the original m