In one side of the slide carriage, there is limit cam, response to the limit switch, to realize the broaching and returning function of the machine tool.
在溜板一侧装有限位碰铁，与限位开关感应，实现机床的拉削与返回功能。
2
The electronic CAM can issue the special position signal of mandrel bar carnage and billet tube carriage. These signals are used as the cooperation of various automatic equipments.