Longeron positioning mechanism behind automobile body of car welding usefulness

The utility model discloses a longeron positioning mechanism behind automobile body of car welding usefulness has a support unit, the support unit have a main part support and one and main part support fixed connection's support end, positioning mechanism has and locates main part support side surface just is located the support group spare of support end lower surface, support group spare internal surface has set firmly one and has been used for preventing the rotatory profile modeling subassembly of skew takes place for the longeron behind the automobile body. The utility model provides a can fix the longeron positioning mechanism behind automobile body of car welding usefulness that welding position is accurate of four bolts of longeron one end after guaranteeing well to back longeron and panel. 本实用新型公开了种汽车焊接用的车身后纵梁定位机构，具有支架单元，所述支架单元具有主体支架和与所述主体支架固定连接的支架端头，所述定位机构具有设于所述主体支架侧表面且位于所述支架端头下表面的支撑组件，所述支撑组件内表面固设有用于防止所述车身后纵梁发生偏移旋转的仿形组件。本实用新型提供种能够很好地对后纵梁和面板进行固定，保证后纵梁端的四根螺栓的焊接位置准确的汽车焊接用的车身后纵梁定位机构。