Automatic assembling equipment for packing box

The invention provides automatic assembling equipment for a packing box. The automatic assembling equipment comprises an inner card pressing mechanism, an inner card bending mechanism, an outer card jacking mechanism, an outer card inserting mechanism and a tool positioning seat, wherein the rectangular packing box provided with symmetrical buckles are placed and borne through the tool positioning seat; the packing box placed on the tool positioning seat is subjected to downward pressing and pre-bending through the inner card pressing mechanism, so that an inner card is bent to the preset bending angle; an outer card is jacked up through the outer card jacking mechanism, so that the outer card is bent to the preset bending angle; and the outer side of the outer card is bent towards the inner card through the outer card inserting mechanism, and accordingly lock catches of the inner card are inserted into lock holes of the outer card so that automatic assembling of the packing box can be achieved. Through the a