Drilling machine with good fixing effect

The drilling machine with the good fixing effect comprises a supporting box, the right side of the supporting box is sleeved with a threaded rod, the right side of the threaded rod is fixedly connected with a rotating handle, the two sides of the surface of the threaded rod are both in threaded connection with threaded sleeves, and the tops of the threaded sleeves are fixedly connected with connecting blocks; the top of the connecting block penetrates through the supporting box and extends to the top of the supporting box. The push handle is pushed, the push handle drives the connecting rod to move, the connecting rod drives the connecting plate to move, the connecting plate drives the connecting column to move, the connecting column can drive the bayonet lock to move, when the bayonet lock is separated from the fixing plate, the limiting plate can be pulled outwards, and therefore the fixing column is taken out, and disassembly and assembly can be completed. The clamping pin is pressed into the inner cavity