Mechanical Knowledge Base: Drilling Machine

Machining features: During machining, the workpiece does not move, the tool moves, the tool center is aligned with the center of the hole, and the tool is rotated (main movement).

Drilling machine is characterized by the workpiece is fixed, the tool to do a rotational movement, and feed in the direction of the main shaft, the operation can be manual, it can be mobile.

(1) Bench drilling machine: The drill hole is generally under 13mm, the smallest hole can be processed 0.1mm, the spindle speed change is achieved by changing the position of the V-belt on the tower pulley, the spindle feed is manual.

(2) Vertical drilling machine: The spindle of a vertical drilling machine cannot move in the plane vertical to its axis. When turning the hole to make the center of the drill bit coincide with the center of the workpiece hole, the workpiece must be moved. Therefore, the vertical drilling machine is only suitable for processing small and medium-sized workpieces.

(3) Radial Drilling Machine: Suitable for machining large workpieces and porous workpieces. There is a rocker arm that can rotate 360 ​​degrees around the column.