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采用图示的切向进给螺纹滚压头(苏联作者发明证709229)加工外螺纹,不但工效高,工具寿命长,而且滚压头的结构简单,使用方便。该滚压头是由壳体1、滚轮2、柄部4、弹簧5和圆盘6等零件组成。两个滚轮上的螺纹作成螺旋形,工作时两个滚轮的旋转方向相同,而工件3被安置于两个滚轮之间。弹簧5的一端固定在壳体1凸出的支承圆柱上,另一端与圆盘6上的支承圆柱相连。工作时圆盘6同滚轮一起旋转,所以弹簧5将被周期性地拉伸。而滚压头的初始位
The use of tangential feed thread rolling head (Soviet author identification card 709229) machining external thread, not only high efficiency, long tool life, and the structure of the rolling head is simple and easy to use. The rolling head is composed of the housing 1, the roller 2, the handle 4, the spring 5 and the disc 6 and other components. The threads on the two rollers are made in a spiral shape. When working, the two rollers rotate in the same direction, and the workpiece 3 is disposed between the two rollers. One end of the spring 5 is fixed on the protruding support cylinder of the housing 1, and the other end of the spring 5 is connected to the support cylinder on the circular disk 6. During operation, the disk 6 rotates with the rollers, so the spring 5 will be periodically stretched. The initial position of the rolling head