Fixing device for welding large thin plate

The utility model discloses a fixing device for welding a large thin plate, which comprises two clamping structures capable of clamping the thin plate and a connecting structure capable of connecting the two clamping structures, and each clamping structure comprises two clamping plates and an adjusting structure arranged between the two clamping plates and used for adjusting the distance between the clamping plates. The utility model has the beneficial effects that the two clamping structures are adopted to clamp the two sides of the groove, so that the relative position accuracy of the large thin plate on the two sides of the groove can be controlled and kept, the change of the relative position of the large thin plate caused by welding is avoided, and the welding quality is ensured. 本实用新型公开了一种用于大型薄板焊接的固定装置，包括两个能够夹持薄板的夹持结构和能够连接两个夹持结构的连接结构，所述的夹持结构包括两个夹板和设置在两个夹板之间且用于调节夹板间距的调节结构。本实用新型的有益效果是：本方案通过采用两个夹持结构夹持在坡口的两侧，能够控制并保持坡口两侧的大型薄板的相对位置精度，避免因焊接导致大型薄板的相对位置发生变化，从而保证焊接质量。