细长件和薄壁件在车削加工中经常遇到。加工中必须采取一定措施,并且由熟练工人精心操作,才能达到一般技术要求。但是,要实现精密车削尚有困难,其主要原因是普通车削方法本身的弊病造成的。细长件由于刚性差,在车削过程中往往产生弯曲、锥度、腰鼓度以及竹节形等现象。虽然采用中心架,跟刀架、反向走刀等方法,但仍难以得到理想的效果。薄壁件由于大而薄,经不起挤压,容易变形,精度难以保证。尤其对于难加工材料,困难更大。为了解决这些问题,实现细长件和薄壁件的精 Elongated and thin-walled parts are often encountered in turning. Must take certain measures in the processing, and meticulous operation by skilled workers, in order to achieve the general technical requirements. However, to achieve precision turning difficult, the main reason is due to the shortcomings of the ordinary turning method. Slender due to poor rigidity, the turning process often produce bending, taper, waist drum and bamboo shape and so on. Although the use of the center frame, with the knife holder, reverse knife and other methods, but still difficult to get the desired effect. Thin-walled parts due to large and thin, can not afford to squeeze, easy to deformation, accuracy is difficult to guarantee. Especially difficult to process materials, the more difficult. In order to solve these problems, the slender and thin-walled parts are realized