Cylinder rounding equipment wide in application range and used for metal product machining

The invention relates to the technical field of circle supporting equipment, in particular to a cylinder circle supporting device for metal product machining, which is wide in application range and comprises a support frame, a cylinder body, a cylinder body and a cylinder body, the first placing plate is fixed in the middle of the support frame; the limiting mechanism is located at the top of the first placing plate; the machining mechanism is located at the bottom of the supporting frame; the metal plate punching device has the beneficial effects that when a second rotating rod rotates, a ninth connecting rod is driven to rotate so as to drive a triangular plate to rotate in a reciprocating mode, and when the triangular plate rotates in a reciprocating mode, a drill bit is driven to rotate in a reciprocating mode so that a metal plate can be punched; and when a triangular plate rotates, a tenth connecting rod is driven to rotate in a reciprocating mode, an extension rod and an upper cutter are driven to rota