车削多级塔形轴件,特别是当各台轴颈长度不长的时候,很费辅助时间(包括开车、关车、退刀、進刀、量长度等)。它比直接加工零件所需要的机动时间要超过很多倍,在小批生产时,竟占全部时间的95％。谢明斯基同志所创造的工具能够半自动的工作,而大量地缩短辅助时间。这个工具除了依照靠模的原理工作外,还能车削各级轴颈成直角的端面。这个工具的工作原理如下(见图)。工具主體1内装—顶针筒2。顶针筒上锁一支片3。弹簧4—端顶在支筒5底端,一端则顶住垫圈6,而经常使支片和靠模7相抵住。当自动走刀时,横刀架和緊固在方刀架上的工 Turning multi-stage tower shaft, especially when the length of each shaft neck is not long, it is time-consuming aids (including driving, off the car, retraction, feed, the amount of length, etc.). It takes more than many times the maneuver time required to process the part directly, accounting for 95% of full time in small batches. The tools created by Comrade Cheminsky are capable of semi-automatic work, while reducing the auxiliary time considerably. In addition to this tool in accordance with the principle of work by the mold, but also turning at all levels of the journal at right angles to the face. The working principle of this tool is as follows (see figure). Tool body 1 built-in - thimble tube 2. Thimble cylinder locking a piece 3. The spring 4-end is at the bottom end of the support barrel 5, and one end is against the washer 6, and often the support piece and the support mold 7 are pressed against each other. When the automatic knife, the transverse knives and fasteners in the square knife holder