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一般在滚齿机、插齿机上加工齿轮时,齿轮毛坯的安装和对中心要花费很长的时间,影响生产效率。如果把心轴加以改进,使安装时容易对准中心,就能节约辅助时间。改进后的心轴如图1。把心轴分成两部分,即心轴主体1和套顶锥2。心轴主体1的下部装在工作台上,中部凸缘做成45°角的锥面。套顶锥2就套在心轴主体1上。工件放在心轴主体和套顶锥的两个锥面之间,再用垫圈3和螺帽4旋紧,工件的中心就对准了。
Generally hobbing machine, gear shaper processing gear, gear blank installation and center to spend a long time, affecting the production efficiency. If the mandrel to improve, so easy to align the center of the installation, you can save auxiliary time. The improved mandrel is shown in Figure 1. The mandrel is divided into two parts, namely mandrel body 1 and top cone 2. The lower part of the mandrel body 1 is mounted on the workbench, and the middle flange is made into a conical surface with a 45 ° angle. The top cone 2 is sleeved on the spindle body 1. The workpiece is placed between the two cones of the spindle body and the top cone, and then the washer 3 and the nut 4 are tightened to align the center of the workpiece.