A diaphragm center tapping
machine is characterized in that the diaphragm center tapping
machine comprises a supporting frame, a
workbench, a protection
assembly, a placing base, a mounting base, a positioning mechanism, a driving motor and a tapping cutter, the
workbench is fixedly mounted on the supporting frame, the protection
assembly is mounted on the periphery of the
workbench, the placing base is connected to the workbench, and the positioning mechanism is arranged on the placing base. A positioning plate is arranged on the workbench, a placing seat is arranged on the workbench, a mounting seat is fixed on the workbench and positioned beside the placing seat through bolts, the mounting seat is connected with a driving motor through a positioning mechanism, and an output end of the driving motor is connected with a
trepanning cutter. The positioning plate is controlled to move downwards to press and position a workpiece to be machined through a
telescopic cylinder, and the driving motor is controlled to move downwards to perform
trepanning; the overall structure is simple, operation is convenient,
machining efficiency is improved, and practicability is high; the
infrared sensors are installed at the two ends of the opening of the protective cover installed on the workbench, when it is detected that an object stretches into the workbench, the
infrared sensors transmit information signals, the controller is additionally arranged to
control equipment to stop working, and installation accidents are avoided.