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B 665牛头创床是用棘轮机构完成进给运动。工作台进给量的大小是用棘轮外圈加一档环,在摇杆固定摆角的范围内盖住棘轮上一部分牙齿来进行调整。由于正反向进给要来回调整棘轮外圈挡环,操作比较麻烦。为此我们对进给机构进行了改进,不用挡环来回调整,而只要将棘爪调整180°,就能实现正反进给,其结构如图1所示: 改进是采用了可调偏心盘,(如图2所示)固定摆角变为可调摆角。进给量的大小用调整偏心来实现,偏心距R的调节范围可以0～55毫
B 665 Tauren wound bed is completed with the ratchet feed movement. Table feed size is the size of the ratchet plus a ring, the rocker fixed swing within the scope of the cover part of the teeth on the ratchet to be adjusted. Due to the positive and negative feed back and forth to adjust the ratchet outer ring retaining ring, the operation is too much trouble. To this end, we improved the feed mechanism, without stopping the ring back and forth to adjust, and as long as the pawl adjusted 180 °, you can achieve positive and negative feed, the structure shown in Figure 1: Improvement is the use of adjustable eccentric disk , (As shown in Figure 2) fixed swing angle becomes adjustable swing. The size of the feed to adjust eccentricity to achieve, eccentricity R adjustment range can be 0 to 55 milliseconds