普通的钻床虎钳可改装成可调钻模(见图)。它适用于钻削以尾端定距的中心孔、偏心孔或矩形零件。改装方法很简单。在虎钳固定爪的顶部开一浅槽,以引导装有可换钻套的带槽横梁伸向钻孔部位。横梁是用螺栓在固定爪的螺孔内加以固定。横梁侧面压入短销,其边缘找正钻套中心。故在重新调整时只要用游标卡尺就可迅速而准确地把钻套定位。另外,在虎钳固定爪侧部钻一横穿通孔,装入尾部带挡板的杆子。此杆则由蝶形 Ordinary drilling vices can be converted into adjustable drill (see photo). It is suitable for drilling the center hole, eccentric hole or rectangular part with the tail end distance. Conversion method is very simple. A shallow groove is formed in the top of the vise fixing claw to guide the grooved cross beam with the exchangeable drill sleeve to extend to the drilling site. Beam is fixed with a bolt in the fixing hole of the fixing claw. Beam into the short side of the pin, the edge of the drilling center to find. Therefore, as long as the re-adjustment with vernier caliper can quickly and accurately locate the drill sleeve. In addition, a through-hole is drilled into the side of the vise fixing claw, and a tail-mounted rod is installed. This bar is made of butterfly