Tool magazine replacing device and drilling machine

The embodiment of the utility model discloses a tool magazine replacing device and a drilling machine. The tool magazine replacing device comprises a mounting plate, a plurality of clamping assemblies and a driving assembly. A plurality of tool magazine assemblies are mounted on the mounting plate, the clamping assemblies are provided with clamping parts, the clamping parts are movably arranged on the mounting plate, the clamping parts are provided with clamping positions and loosening positions on the mounting plate, when the clamping parts are located at the clamping positions, the clamping parts can be connected with the tool magazine assemblies so as to fix mounting parts on the mounting plate, and when the clamping parts are located at the loosening positions, the clamping parts can be separated from the tool magazine assemblies so as to fix the mounting parts on the mounting plate. Therefore, the tool magazine assembly can be conveniently taken down from the mounting plate. The driving assembly is conne