如图1　所示,BS6063等型号的牛头刨床进给油箱紧贴于床身的前面,从上面进入进给箱的润滑油,通过下部的φ8mm孔回到床身内进入油池中。现结构的主要问题是:　　　　(1)　回油孔太小来不及回油,使箱内油面逐渐升高,易于泄漏,甚至从箱体中部侧面窗口溢出。　　　　(2)在试装或修理 Shown in Figure 1, BS6063 and other models of shaper feed tank close to the front of the bed, into the feed tank from above, through the lower hole φ8mm back into the bed into the oil pool. The main problems of the present structure are: (1) The oil return hole is too small for the oil return to make the oil level in the tank gradually increase, which is easy to leak and even overflow from the side window in the middle of the box body. (2) in the trial equipment or repair