1. The spindle speed of the vertical drilling machine has a wide range, and the rotation speed is changed by the cooperation of the two handles on the left side of the spindle box and the speed change switch.
2. The rotation speed of the vertical drilling machine is set reasonably, and it has good cutting performance when drilling large hole diameters.
3. The variable speed switch of the vertical drilling machine is equipped with reverse rotation at high and low speeds so that the thread can be tapped at any speed.
4. Vertical drilling machine bracket and worktable clamping handle are set below, and other operating handles are set above the headstock.
5. The spindle part of the vertical drilling machine is equipped with a return spring and a tool unloading device. The former can be adjusted according to the operator’s habits, and the latter is convenient for tool removal.
6. The lifting mechanism of the spindle box and bracket of the vertical drilling machine can be used for both up and down lifting and 360 ° rotation movement. The lifting mechanism is set as a general component. The lifting is realized by the worm gear pair through gear and rack, achieving the labor-saving and self-locking safety effect.
7. The motor of the vertical drilling machine is installed in the main shaft box. The outer diameter of the motor stator is added with a bushing for positioning, which is convenient for maintenance and disassembly. The power is transmitted to the gearbox through the spline sleeve connection. The main castings are subject to artificial aging treatment. The main steel parts, such as the main shaft, are subject to necessary heat treatment to maintain good stability and wear resistance.