Three-dimensional wound core splicing tool

The utility model discloses a three-dimensional wound core splicing tool which comprises a base, a positioning frame and a positioning baffle. The positioning frame is in a regular triangle shape and comprises three frames which are connected end to end and are equal in length. The positioning frame is fixedly mounted at the top of the base; the three groups of positioning baffles are in one-to-one correspondence with the three borders of the positioning frame; the positioning baffle is arranged on the inner side of the positioning frame and installed on the base. Each positioning baffle is parallel to the corresponding frame; the positioning baffles are arranged in an inclined mode and form included angles with upward openings with the corresponding frames. The three groups of single frames are respectively positioned through the regular triangular positioning frames and the obliquely arranged positioning baffle plates, so that correct splicing of the three single frames during splicing is ensured, angle err