形状公差和位置公差,简称形位公差。它与大家所熟悉的尺寸公差、表面光洁度一样,都是为了保证零件互换,满足机器功能需要,对机械零件所提出的重要技术要求。也是评定产品质量的重要指标。图1-1是生产中常用的一张零件图,从这张图纸上我们可以看到,上面除绘有表示零件结构形状的视图和注有确切的尺寸外,还标注有必要的尺寸 Shape and position tolerances, referred to as the shape and position tolerances. It is familiar with the size tolerances, surface finish, are in order to ensure the exchange of parts to meet the needs of the machine function, the mechanical parts of the important technical requirements. Is also an important indicator of product quality assessment. Figure 1-1 is a commonly used production of a part diagram, we can see from this drawing, the top of the above except that part of the structure is painted with the view of the shape and note the exact size, but also marked the necessary dimensions