Universal drilling and milling machine is driven by electricity, improve the productivity of machinery and equipment, then universal milling machine electric drive characteristics is what? There are several points below:
A: clockwise in two ways: so the spindle motor forward and reverse, but considering the positive and reverse operation of wells is not frequent, therefore, a combination switch is arranged on the lower side of the electrical box milling machine bed. To change the power supply to achieve positive and negative re spindle motor spindle drive system is arranged in the mountain to avoid inertia wheel vibration the spindle, parking difficulties, so the spindle motor with electromagnetic clutch brake to achieve accurate parking.
Two: according to the process requirements of electrical interlocking measures: in order to reduce the roughness of the workpiece surface, only after the feed stopped, spindle can stop or stop at the same time. The milling machine adopts the way of spindle and feed stopping at the same time in electrical L, but the inertia of spindle movement is very large. In fact, it meets the requirement that the feed motion stops first and stops after the spindle movement. The main movement and feed movement speed by variable speed disk, in order to ensure the transmission gear into good meshing state and two kinds of motion are required after instantaneous dynamic transmission. When the spindle motor or cooling pump motor is overloaded, the feed motion must be found in time, and the cooling system should be protected in time
