Pressure jig apparatus for bringing electrode lead into close contact with bus bar and battery module manufacturing system including same

A pressing jig apparatus for welding, which is installed at one side of a battery module having a cell stack formed by stacking a plurality of battery cells and presses an electrode leads so that the electrode leads are welded in close contact with both sides of a bus bar provided to the battery module, the pressing jig apparatus comprising:

• a first frame;
• and
• a second frame coupled to face the first frame and to be rotatable relative to the first frame,
• wherein the first frame includes a first pressing tip provided at on longitudinal end thereof and configured to press a first lead group of a first unit cell stack provided in the cell stack so that the first lead group comes into close contact with one side of the bus bar, and
• wherein the second frame includes a second pressing tip provided at one longitudinal end thereof to face the first pressing tip and configured to press a second lead group of a second unit cell stack provided in the cell stack so that the second lead group comes into close contact with the other side of the bus bar.