The invention discloses a
slag removing mechanism for a PCB hole. The
slag removing mechanism for the PCB hole comprises a motor, a supporting plate, an air box, a clamping head, a hollow sleeve
pipe, two limiting sleeves and two drilling tool mechanisms, wherein the limiting sleeves and the drilling tool mechanisms are symmetrically arranged along the hollow sleeve
pipe, the hollow sleeve
pipe is inserted into a hole needing to be subjected to
slag removing, and then, the motor works so as to drive the hollow sleeve pipe to rotate, the drilling tool mechanisms slowly extend out due to the effect of bearing
centrifugal force under the damping effect of an elastic column, tool bits arranged on the drilling tool mechanisms smash and remove the adhered slag in the hole, a
brush cleans the hole wall which is subjected to
machining by the tool bits, and thus slag is removed; and meanwhile, negative pressure is pumped out of the air box through an air pipe, the dissociative waste slag enters the air box successively passing through the hollow sleeve pipe, slag discharging holes arranged on the clamping head, and further is discharged out through the air pipe. The slag removing mechanism is simple in structure, can effectively remove the slag and the dust adhered to the inner wall of the PCB hole, not only is
environmentally friendly, but also has a good removal effect, and meanwhile, the slag can be automatically absorbed and discharged, secondary adhesion of the slag can be prevented, and the production efficiency is improved.