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Z512型台钻是一种小型钻床,用来钻削直径在12毫米以下的孔,在零件加工、装配和修理工作中应用很普遍。这种钻床没有刀具的自动进给机构,为了完成进刀运动,要依靠操作者扳动进给手柄23(图1),使小齿轮跟套筒上的齿条相啮合,当齿轮转动时带动齿条,使主轴上下运动。这种手动机构不适应大批量生产的需要。为此,我们将其改装成半自动的多头钻。改装由两部分组成:一是在主轴上安装一个齿轮式多轴头架,变单孔钻削为多孔钻削;二是安装一套
The Z512 Bench Drill is a small drill that drills holes down to 12 mm in diameter and is commonly used in parts machining, assembly and repair work. This type of drilling machine does not have an automatic feed mechanism of a tool. In order to complete the feed movement, it is necessary for the operator to pull the feed handle 23 (FIG. 1) so that the pinion meshes with the rack on the sleeve and drives the gear Rack, the spindle up and down movement. This manual mechanism does not meet the needs of mass production. For this reason, we converted it into a semi-automatic multi-head drill. The conversion consists of two parts: one is to install a gear multi-axis headstock on the spindle, the single hole drilling is porous drilling; the other is to install a set