System for assembling vehicle body components

A system for assembling vehicle body components, which assembles first and second components to be applied to a vehicle, the system comprising:

• an index table rotatably positioned on a mounting frame;
• a plurality of assembly units positioned on an upper surface of the index table in four directions by a plurality of rotary plates, and each assembly unit including a replacement jig configured to be attachable or detachable depending on the types of vehicles, and each assembly unit further including a fixing jig fixed and spaced apart from the replacement jig, the replacement jig and the fixing jig being configured to allow the first and second components to be loaded thereon, and the plurality of assembly units being configured to be rotated by a predetermined angle by the index table so that a plurality of the first and a plurality of the second components are welded together while passing through a plurality of assembly sections;
• a replacement jig palette positioned in a first assembly section and configured to store a plurality of replacement jigs for the respective types of vehicles;
• a component palette positioned in a second assembly section and configured to store the plurality of first components and the plurality of second components;
• a plurality of clamping units positioned in a third assembly section, the plurality of clamping units provided depending on the types of vehicles, and the plurality of clamping units being configured to clamp the plurality of first and the plurality of second components seated on the replacement jig and the fixing jig;
• and
• welders positioned in the third assembly section and the fourth assembly section and configured to weld the plurality of first components and the plurality of second components.