G—600型自动氧气切割机,有时因为永久磁铁式仿形磁滚的吸力不足,造成切割过程中出现磁滚停止不前或脱离仿形样板的故障。严重影响切割零件的精度,有时根本不能使用。为了克服该机的这一缺点,我们设计了一个直流电磁铁式磁滚,取代原来的永久磁铁式磁滚。新磁滚的吸力经测量为 1.5公斤,原来的只有0.3公斤,吸力提高了4倍。电磁铁的结构及尺寸见图1。滚动磁滚与主动轴用定位螺丝1固定,上端用轴承架2固定。线圈架安装后用底座上的定位销子 G-600 automatic oxygen cutting machine, sometimes due to the permanent magnet format magnetic roller suction insufficient, resulting in the magnetic roller during the cut-off process does not stop or break away from the profile plate failure. Seriously affect the accuracy of cutting parts, and sometimes simply can not be used. In order to overcome this shortcoming of this machine, we designed a direct-current electromagnetism magnetism roll, replaced the original permanent magnet type magnetism roll. New magnetic roller suction measured by 1.5 kg, the original only 0.3 kg, suction increased by 4 times. Electromagnet structure and size shown in Figure 1. Rolling magnetic roller and drive shaft with a fixed screw 1, the upper bracket 2 with a fixed bearing. Locating pins on the base for bobbin mounting