The working principle, interior structure and clearance adjustment of the double gear-rack feeding device of the table of XHT2420 gantry machining center are described in detail.

• 着重阐述XHT2420龙门五面加工中心工作台双齿轮-齿条机构进给系统的工作原理、内部结构及在装配过程中消除间隙的方法。