Automobile subframe assembly welding fixture

The utility model discloses an automobile subframe assembly welding fixture, which comprises a fixture bottom board and a fixture assembly which consists of a first positioning fixture, a second positioning fixture, a towing bracket fixture I, a towing bracket fixture II, a towing bracket fixture III, a towing bracket fixture IV, a towing bracket fixture V, a suspending frame fixture I and a suspending frame fixture II. A welding product is clamped and positioned by selecting corresponding multiple groups of fixtures in the fixture assembly according to a differential part of the welding product to be assembled on the fixture bottom board. A plurality of similar products can be welded and positioned by using one set of welding fixture, so the development time of the fixture is shortened and the development cost of the fixture is saved. The fixture is convenient to assemble, and the working efficiency is high.