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在机械设计中,对于多个零件组成的装配件,常采用槽形孔来补偿因制造误差而产生零件间的相对位移。这对降低零件的加工精度和保证零件的互换性有着重要的意义。在图1中,零件1、2和3之间在x、y、z方向上可调整的相对位移量分别为e_x、e_v、e_g。显然,零件1、2、3由于制造误差而在x、y、z方向上产生的相对位移,可以从槽形孔提供的可调整的相对位移量中得到补偿。下面用实例来说明槽形孔的设置和计算方法,以及零件在装配时的调整方法。
In mechanical design, for the assembly of multiple parts, slotted holes are often used to compensate the relative displacement caused by manufacturing errors. This is of great significance to reduce the machining accuracy of parts and to ensure the interchangeability of parts. In FIG. 1, the relative displacements adjustable between the parts 1, 2 and 3 in the x, y and z directions are e_x, e_v and e_g, respectively. Obviously, the relative displacements of the parts 1, 2, 3 in the x, y, z directions due to manufacturing errors can be compensated for by the adjustable relative displacement provided by the slotted holes. The following examples to illustrate slotted hole settings and calculation methods, and parts in the assembly method of adjustment.