A valve hole processing device for a slice reversing valve

The invention discloses a valve hole processing device of a sheet type reversing valve. The processing device comprises an upper bottom plate and a lower bottom plate, wherein the upper bottom plate is provided with a boring cutter feeding hole, the lower bottom plate is arranged on a work table top of a boring machine, a groove-shaped plate block consisting of two side plates and a back plate is arranged between the upper bottom plate and the lower bottom plate, the inner side surfaces of the two side plates are inclined from outside to inside, so workpieces can conveniently enter and press against the back plate for positioning, a screw rod fixedly arranged in the center of the back plate is sheathed into a press block and is then connected with a screwing device through screw threads for tightly pressing the press block, next, the two inwards inclined side surfaces of the press block is contacted with the work face, then the workpiece is positioned and tightly pressed, the screw threads can be unscrewed through reverse rotation, the press block can be taken down, and the workpiece is dismounted. The valve hole processing device has the advantages that the structure is simple, the installation and the clamping are convenient, the positioning and the clamping of two workpieces can be simultaneously realized, if two sets of the valve hole processing devices are symmetrically arranged between the upper bottom plate and the lower bottom plate, the positioning and the clamping of four workpieces can also be simultaneously realized, the processing work time of the workpieces is greatly shortened, the production efficiency is improved, the production cost is saved, and the goal of energy saving is reached.