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                                                    曲轴机床的特点
                                                    作者:    发?#21152;冢?016-05-31 18:26:06    文字:【】【】【

                                                    曲轴高效专用机床也有它的加工局限性,只有合理应用合适的加工机床,才能发挥出曲轴加工机床的高效专用性,从而提高工序的加工效率。

                                                    1、当曲轴轴颈有沉割槽时,数控内铣机床不能加工;如果曲轴轴颈轴向有沉割槽时,数控高速外铣机床和数控内铣机床均不能加工,但数控车-车拉机床能很方便地加工。

                                                    2、当平衡块侧面需要加工时,数控内铣机床应当为首选机床,因为内铣刀盘外圆定位,刚性好,尤其适用于加工大型锻钢曲轴;此时不适合用数控车-车拉机床,因为在曲轴的平衡块侧面需要加工的情况下,采用数控车-车拉机床加工,平衡块侧面是断续切削,且曲轴转速又很高,在这种工况下,崩刀现象比较?#29616;亍?/p>

                                                    3、当曲轴的轴颈无沉割槽,且平衡块侧面不需加工时,原则上?#38050;?#26426;床都能加工。当加工轿车曲轴时,主轴颈采用数控车-车拉机床,连?#21496;?#37319;用数控高速外铣机床则应成为最佳高效加工选择;当加工大型锻钢曲轴时,则主轴颈和连?#21496;?#22343;采用数控内铣机床比较合理。

                                                    曲轴可以分为体形较大的锻钢曲轴和轻量化的轿车曲轴,锻钢曲轴轴颈一般无沉割槽,?#20063;?#38754;需要加工,余量较大;轿车曲轴一般轴颈有沉割槽,?#20063;?#38754;不需要加工。因此可以得出结论:加工锻钢曲轴采用数控内铣机床,加工轿车曲轴主轴颈采用数控车-车拉机床,连?#21496;?#37319;用数控高速外铣机床是比较合理的高效加工选择。

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