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直径大于1000毫米的筒形毛坯外表面,经堆焊或热处理后,其几何形状存在变形量。若加工余量较小,在现有设备上进行机械加工,是不能完成的。图示筒形外圆加工装置,可沿工件外表面均匀切削金属,尽管加工余量小,机械加工仍可顺利进行。该装置由本体3和装两把刀13的刀架12组成。其中一把刀用来切削外表面14被加工面上的凸起,其刀尖应对正于外表面平均高度;另一把刀按要求的切削深度对刀。刀架与平衡杆8是用销轴7联接。
Cylindrical blanks with a diameter of more than 1000 mm are deformed by welding or heat treatment. If the machining allowance is small, machining on the existing equipment can not be done. The figure shows cylindrical cylindrical machining device that can cut the metal evenly along the outer surface of the workpiece. Machining can be carried out smoothly despite the small machining allowance. The device consists of a body 3 and a knife holder 12 with two knives 13. One of the blades is used to cut the projection on the machined surface of the outer surface 14, the tip of which is to be aligned with the average height of the outer surface; the other is to be set at the required depth of cut. Turret and balance bar 8 is connected with the pin 7.