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我厂采用合理配重、分段镗削及调整找正的方法,在装有数显装置的T681卧式镗床上,完成加工机床主轴箱上孔系的钻孔、攻丝。现以一个攻丝主轴箱为例说明其加工过程。由于箱体的尺寸太大,1800(长)×700(高)×(180(宽),而孔坐标水平x向极限数值为0～1660mm,镗床工作台横向水平只移动800mm,为保证箱体与前盖,箱体与后盖定位销孔(圆柱销及菱形销)的定位精度,定位销孔可在钻床或精度低一点的落地镗床上,按划线位置一次找正定位配作好,使其与整个孔系坐标分离。对箱体主轴孔、传动轴孔及前盖主轴孔分左、中、右三段镗削(右段0～750、中段750～950、左段950～1660)。根据箱体在工作台上偏置状态适当加上配重,镗削过程的几次定位采用调整找
I use reasonable weight counterbalanced, sub-boring and adjustment to find the correct way, with a digital display device T681 horizontal boring machine to complete the processing machine tool spindle box hole drilling, tapping. Now take a tapping headstock as an example to illustrate its processing. Because the size of the box is too large, 1800 (L) × 700 (H) × (180 (W), while the hole coordinate horizontal x to the limit value of 0 ~ 1660mm, horizontal milling table horizontal movement of only 800mm, And the front cover, the housing and the back cover positioning pin hole (cylindrical pin and diamond pin) positioning accuracy, pin hole can be drilled or lower accuracy of the floor boring machine, according to a crossed position to find a correct positioning, So that it is separated from the entire hole coordinate system of the box spindle hole, drive shaft hole and front spindle hole points left, middle and right three boring section (right section 0 ~ 750, middle 750 ~ 950, left section 950 ~ 1660 ) .According to the box on the table offset state plus appropriate weight, boring process several times using the adjustment to find