注油口冲压设计
摘  要
本次设计是完成某机床注油口冲压工艺及模具设计。采用落料、拉深、冲孔、翻边、切边工艺。设计中分析了工件的冲压工艺性，计算了毛坯排样、冲压力、刃口尺寸计算等。进行了模具总体结构、主要零部件的设计，绘制了落料、拉深、冲孔复合模和翻边、切边的单工序模具装配图和零部件图。
本文对冲压某机床注油孔的全部过程所需的模具进行简单介绍，并绘制了相应的模具装配图，并对各套模具的工作过程及模具设计中的定位、卸料等装置进行了简单介绍。对于本次课题某机床注油口的冲压设计难点在于拉伸那个直径为180mm，深度55mm的深孔。拉伸这个孔需要拉伸，再翻孔，需要注意的是计算拉伸时注意板件恶性变形，需要合理的分析和周密的计算其变形应力确定变形程度、毛坯与模具的摩擦阻力及筒壁的承载能力，以免造成筒件拉裂。重点在于需要根据零件的相对高度h/d确定拉深次数，以及圆筒形件拉深工序尺寸的详细计算。
 
关键词： 冲压工艺   冲压模具设计   装配图
Note hole in a stamping die design tool

Abstract
  The graduation project is the completion of fuel injection port of a machine stamping process and die design. Use of blanking, drawing, piercing and flanging, trimming process. Analysis of the design process of stamping parts, calculate the rough layout, punch pressure, blade size calculation. The overall structure of the die, the main components of the design, drawing the blanking, drawing, piercing and flanging compound die, trimming a single mold assembly and parts operations plans
In this paper, punch a hole all the machine injection mold process requires a brief introduction, and the mapping of the corresponding die assembly drawings, and the work of the various sets of mold and die design in the process of positioning, discharging a brief description of device . The topic for the mouth of a stamping machine oiling design difficulty is stretching the diameter of 180mm, depth 55mm deep hole. Need to stretch the hole stretch, zaifan hole, need to pay attention when the attention is to calculate the tensile deformation of plate, and malignant, a logical analysis and careful calculation to determine the stress deformation of the deformation degree of friction with the mold and the rough cylinder wall Carrying capacity, so as to avoid tube pieces crack. Need to focus on parts of the relative height h / d to determine the number of drawing, and the cylindrical deep drawing process dimensions of the detailed calculations
 
Key Words: Press process   Press tool design   assembly diagram