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我厂从提高产品质量及生产效率入手,设计、制造了专门用于细长轴加工的工艺装备,简要地编制了加工工艺,使用后效果很好。 1.细长轴坯料的准备 (1)选料 所用毛坯料直径一般比成品大5～8mm,长度比成品要长100～120mm。 (2)校直 校直可使车削余量均匀,减少车削振动,提高车削质量。坯料校直后,要求在任意1000mm的长度内其直线度误差不大于2mm,可使切削后的表面残余应力保持较均匀,减少工件在使用中产生变形。 (3)车一端外圆及螺纹 将坯料穿入机床主轴孔内,留出60～70mm,用卡盘夹紧。按工艺装备的尺寸要求,车一段50mm长的外圆,并在端部车一段20mm长的普通细牙螺纹。
I plant from improving product quality and production efficiency to start, design, manufacture of special equipment for the processing of slender shaft equipment, a brief preparation of the processing technology, the effect is very good after use. 1. Slender shaft blank preparation (1) the choice of materials used in the blank material generally larger diameter than the finished product 5 ~ 8mm, the length of longer than the finished product 100 ~ 120mm. (2) Straightening and straightening can make turning allowance even, reducing turning vibration and improving turning quality. Billet alignment, the requirements of any length of 1000mm straightness error of not more than 2mm, the surface residual stress after cutting can maintain a more uniform, reducing the deformation of the workpiece in use. (3) one end of the car and thread the billet into the spindle hole machine, leaving 60 ~ 70mm, chuck with the chuck. According to the technical requirements of the size of the car, car a length of 50mm cylindrical, and the end of the car section of a 20mm long ordinary fine thread.