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在全面贯彻六项互换性的机械设计方面新国标过程中,控制迥转型机械零件(如齿轮)的内孔键槽(简称轮壳槽)的对称度误差,既涉及到新国标《键与键槽》(GB1095—79)的贯彻实施,又涉及到新国标《形状与位置公差》(GB1184-80和GB1958-80)的贯彻实施,值得机械制造行业(尤其是齿轮行业)在贯彻上述六项基础标准时共同探讨。我厂是生产中型机床配套齿轮的专业厂。以往,在轮壳槽拉削成形工艺方面,仅注意到控制键宽的尺寸误差(一般使用止通式平键规进行检测),而在“对称度”这项较重要的位置误差的控制方面,未采取有效的工艺措施。最近,我厂在加工一批键槽精度较高的铣镗床齿
In the full implementation of the six new interchangeable mechanical design in the process of the national standard, control of non-transition mechanical parts (such as gear) of the keyhole symmetry error (referred to as the wheel shell groove), both involving the new national standard “key and keyway ”(GB1095-79) implementation, but also involves the new national standard“ shape and position tolerance ”(GB1184-80 and GB1958-80) implementation, it is worth mechanical manufacturing industry (especially the gear industry) in the implementation of the above six basis Standard time to discuss. I plant is the production of medium-sized machine tool gear factory. In the past, in the wheel shell broaching forming process, only pay attention to the size of the control key width error (usually used to stop flat key gauge detection), and in the “symmetry” the more important position error control , Did not take effective technological measures. Recently, I plant in the processing of a number of keyway precision milling boring machine teeth