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我厂自制镗孔刮端面机床,对ZL40装载机后车架铰接轴承孔进行加工,收到了良好的效果。后车架焊接后总重约1.5t、长3478mm、宽约1000mm,其局部加工尺寸见图1所示。两孔同心度允差为0.05ram,孔与端面垂直度允差为0.05mm,孔单面加工余量为2～2.5mm,端面加工余量为1～1.5mm。本机床采用我厂原有TT4232(变形)镗削动力头,将原配套的液压滑台改为机械并可手动的滑台,与XT4032铣削头主轴箱配置,在工件中间放置随动镗头基座,使之实现单独进给的T型卧式单面镗刮
I plant boring scraping end machine, ZL40 loader rear frame hinge bearing hole processing, received good results. After the rear frame welding the total weight of about 1.5t, length 3478mm, width 1000mm, the local processing size shown in Figure 1. Concentricity tolerance of the two holes is 0.05ram, the tolerance of the perpendicularity between the hole and the end surface is 0.05mm, the allowance of one side of the hole is 2 to 2.5mm, and the allowance of the end surface is 1 to 1.5mm. The machine uses the original TT4232 (deformation) boring power head of our factory to change the original supporting hydraulic slide table into a mechanical and manual slide table, and the XT4032 milling head headstock is arranged, and a movable boring head base is placed in the middle of the work piece Block, so that the realization of a separate feed T-type horizontal single boring and scraping