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断面如图1所示的矩形管,我们是在J23-40开式双柱可倾压力机上用图2的切断模进行切断的。该模具的工作部分是由薄片状的可动切刃18、相当于固定切刃的左侧刃7,右侧刃33及底刃8所组成。工作过程先扳动摇杆2,带动连接板5,左侧刃7压缩左压紧橡皮6使模腔扩大,将坯料放入适当位置。然后松开摇杆,左侧刃在左压紧橡皮的作用下夹紧坯料,开动机床,可动
As shown in Figure 1, the cross-section of the rectangular tube, we are in the J23-40 open two-column tilting presses with the cutting model in Figure 2 to cut off. The working portion of the mold is composed of a sheet-shaped movable cutting edge 18, left-side cutting edge 7, right-side cutting edge 33, and bottom cutting edge 8 corresponding to a fixed cutting edge. The working process first pulls the rocker 2, drives the connecting plate 5, and the left edge 7 compresses the left pressing rubber 6 to enlarge the cavity and puts the blank in the proper position. Then release the rocker, the left side of the blade in the left clamping rubber blank under the action, start the machine, movable