Lantern ring assembling and disassembling device for PCB machining drill bit

The lantern ring assembling and disassembling device for the PCB machining drill bit comprises a fixed support, a plane is arranged on the fixed support, a sliding sleeve is fixedly arranged in the middle section of the plane, a sliding shaft moving along the sliding sleeve is arranged in the sliding sleeve, an operating mechanism is arranged at one end of the plane, and the operating mechanism isconnected with one end of the sliding shaft and used for driving the sliding shaft to move. The other end of the sliding shaft is provided with an end plate, the other face, opposite to the sliding shaft, of the end plate is provided with a pressing head A and a pressing head B. A supporting plate A is arranged at the position, corresponding to the pressing head A, of the plane, a supporting plate B is arranged at the position, corresponding to the pressing head B, of the plane, and the supporting plate A and the supporting plate B are each provided with a through hole. The dial indicator islocated on the other side,