Button trepanning device

The invention relates to the technical field of button machining, in particular to a button trepanning device. The button trepanning device comprises a base, a fixing frame clamped to the upper end ofthe base, a main rack clamped to the edge of the upper end of the base, a cross beam screwed to the upper portion of the main rack through a thread, a case arranged on the cross beam in a sleeving manner, a motor and a drilling component; the fixing frame comprises a bottom plate, a first clamping block clamped to the edge of the lower end of the bottom plate, a first clamping tooth, a disc-shaped upper fixed part clamped to the middle of the lower side of the bottom plate, a middle connecting part, a second clamping block, a lower mounting frame clamped to the upper side of the bottom plate,supporting parts and a spherical positioning part clamped between the two supporting parts; the drilling component of the button trepanning device can be transversely adjusted, and the fixing frame can firmly fix a machined b