Assembly positioning tool for production and machining of automobile exhaust treatment workpiece

The utility model belongs to the field of automobile part assembly tool application equipment, and particularly relates to an assembly positioning tool for production and processing of automobile exhaust treatment workpieces, which comprises a support frame. A clamping device used for the end of a workpiece to be assembled is arranged on one side of the positioning device, a lifting device is arranged between the positioning device and the clamping device, and a pressing device used for abutting against the top end of the workpiece to be assembled is arranged on one side of the clamping device. A pressing device used for being matched with the periphery of a workpiece to be assembled is arranged on the periphery of the positioning device, a downward pressing device used for pressing the upper end of the workpiece to be assembled is arranged on one side of the pressing device, and a jacking device is arranged on one side of the upper end of the workbench. The positioning and clamping device is reasonable in de