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凸形滚轮在电影机械上用得很多,但制造比较困难。因为用普通滚花刀很难滚制带有凸弧形的工件,所以只好用手工加工。工具车间这一情况,设计并制了一种圆弧滚花刀架;这种刀架对一般凸弧形工件的滚花,不但操作简便,而且生产率高。圆弧滚花刀架的构造很简单,如图1所示。为了制图上的方便起见,我们把滚花刀架拉直来划。图1中,1是固定支架,2是转动支架,它们用螺钉7连在一起。3是滚花刀杆,用螺钉5固定在转动支架2上;通过螺钉4的调节,可以使滚花刀杆3在转动支架2中前后移动。6是滚花刀轮,用销子固定在滚花刀杆3上。
Convex rollers are used on film machines a lot, but are more difficult to make. Because ordinary knurled knives are difficult to roll with convex arc-shaped workpiece, so had to use manual processing. Tool shop in this case, the design and manufacture of a circular knurled turret; Knife on the general convex curved workpiece knurl, not only easy to operate, and high productivity. The structure of circular knurled turret is very simple, as shown in Figure 1. For the convenience of drawing, we straighten the knurled turret. In FIG. 1, 1 is a fixed bracket, 2 is a rotating bracket, and they are connected together with a screw 7. 3 is a knurled cutter bar, with a screw 5 is fixed to the rotating bracket 2; by adjusting the screw 4, the knurled bar 3 can be moved back and forth in the rotating bracket 2. 6 is a knurled wheel, with pin fixed knurled bar 3.