Positioning device

The invention relates to the technical field of positioning tools, in particular to a positioning device. The positioning device comprises a profiling mold, an internal expansion chuck, a chuck core rod, a first fixing assembly and a second fixing assembly, wherein the chuck core rod is matched with the internal expansion chuck; the profiling mold is matched with the internal expansion chuck; and the internal expansion chuck is connected with an output shaft of a driving part; the first fixing assembly is used for being matched with the profiling mold; and the second fixing assembly is used for applying pressure. For the technical problem that irregular workpieces are difficult to position, mutual positioning of the irregular workpieces when certain included angles are formed between the irregular workpieces is achieved. 本发明涉及定位工装技术领域，具体涉及一种定位装置。包括仿型模、内胀夹头和夹头芯棒，所述夹头芯棒与所述内胀夹头相匹配，所述仿型模与内胀夹头相匹配，所述内胀夹头与驱动部的输出轴连接；还包括用于与仿型模配合第一固定组件，以及用于施加压力的第二固定组件。针对不规则工件难以保持定位的技术问题，本发明实现了不规则工件，互成一定夹角时的相互定位。