一面双销定位法是最常用的一种定位方法。关于双销定位的设计计算有几种方法,但都涉及到销间距公差的选取,在选取两定位销的销间距及其公差时,目前都习惯于采用有关资料推荐的方法,将销间距的公称尺寸取工件两定位孔中心距的公称尺寸L(计算时,孔间距均应化 One side of the pin positioning method is the most commonly used method of positioning. There are several ways to design and calculate the two-pin positioning, but all involve the selection of the pitch tolerance of the pin. When selecting the pin pitch and the tolerance of two pins, it is currently accustomed to adopting the method recommended by the relevant data, Nominal size to take two pieces of workpiece positioning hole center distance of the nominal size L (calculation, the hole spacing should be