刨台的往复运动及其实施小孙对刨台往复运动的规律看不大明白,请张老师讲解一下。张老师说:“所谓往复运动周期,是指刨台每往返一次的速度变化。以国产A系列龙门刨床为例,其往复周期如图662所示。图中,v为线速度,t为时间。各时间段(t_1～t_5)的工况如下:1.刨台的往复周期(1)切人工件段即刨台起动、刨刀切人工件的阶段 Planing table reciprocating motion and the implementation of Xiao Sun on the planing table reciprocating motion do not quite understand, please Zhang teacher to explain. Zhang said: ”The so-called reciprocating cycle, refers to the speed of each reciprocating Planer Taiwan. A series of domestic gantry planing machine, for example, the reciprocation cycle shown in Figure 662. In the figure, v is the linear velocity, t Time. The working conditions of each time period (t_1 ~ t_5) are as follows: 1. The reciprocating cycle of the planing station (1) cutting the workpiece section that is the planing stage starting, planing cutter cutting the workpiece stage