Device for quickly assembling and disassembling screws during inside diameter slicer cutter blade replacing

The invention provides a device for quickly assembling and disassembling screws during inside diameter slicer cutter blade replacing. The device comprises a rocking handle, an inner fixing disc, an outer fixing disc, a driving shaft, a plurality of driven shafts, a driving gear, a plurality of driven gears, a moving disc and a straight internal hexagonal wrench; the driving shaft drives the drivenshafts to rotate through gear transmission at first and finally drives the straight internal hexagonal wrench to rotate, meanwhile, the driving shaft drives the moving disc to move inwards through thread transmission, then, pushes the driven shafts to slide inwards in the axial direction and finally pushes the straight internal hexagonal wrench to move inwards, or the screws which are unscrewed outwards push the straight internal hexagonal wrench to move outwards, accordingly the driven shafts are pushed to slide outwards axially, and screw assembling and disassembling are achieved. The device can replace partial man