我厂使用的A663Γ龙门铣床结构简单,技术性能落后,床身导轨原结构如图1a所示。由于床身导轨采用“外凸”的闭式结构,润滑油经导轨的立面并通过工作台下压板大量外溢,泄漏严重。为此,我们对床身导轨和工作台进行了技术改造(图1b):主要点是将床身改为 I plant A663? Gantry milling machine with simple structure, technical performance behind, the original structure of the bed rail shown in Figure 1a. As the bed rails with “convex” closed structure, lubricating oil through the rail facade and a large number of work platform under pressure plate spills, serious leakage. To this end, we have a technical transformation of the bed rails and workbenches (Figure 1b): The main point is to change the bed to