Dividing head of the exchange gear - optical dividing head
Universal dividing head is a widely used, the spindle can be tilted in the horizontal and vertical direction of any angle of the dividing head. When the number of equal points on the indexing plate can not meet the indexing requirements, through the worm and the spindle between the exchange gear to change the transmission ratio, expand the indexing range. Xiaobian for the following section to tell you about the exchange of gears. The following are the same as the "
At the beginning of the 19th century, the exchange gear was actually applied on the lathe. The use of exchange gear shift can simplify the machine structure, but when the gears need to dismantle the gear, trouble and time-consuming, mainly used for machine tool to adjust the scope of a wide range or do not need frequent transmission of the site. Depending on the adjustment range and accuracy of the required gear ratio, one or two pairs of exchange gears may be used. When there is only one pair of switching gears between the two axes, the number of teeth of each pair of switching gears must be equal due to the center distance. When two pairs of exchange gears are used, the intermediate wheels are mounted on an adjustable exchange gear carrier because the number of teeth of each pair is not fixed. When the passive shaft is required to be opposite to the direction of rotation of the drive shaft, an idle idler can be added between the switching gears. When the drive with a number of decimal places and the requirements of high precision, there are three pairs of exchange gear.