Pedal welding forming die based on steel tube chair

The utility model discloses a pedal welding forming die based on a steel tube chair, which comprises a lower supporting die, a lower supporting die, a lower supporting die, a lower supporting die, anupper supporting die, an upper supporting die and a lower supporting die, the connecting blocks are connected to the working surface of the pedal welding machine, are arranged on the side edge of thebackrest plate, and are arranged at intervals with the backrest plate; the upper pressing die is connected to the connecting block through two hinges, is used for pressing the backrest plate from topto bottom, and can rotate by an angle by taking the hinges as a rotating center; therefore, the technical problem of poor welding quality caused by displacement of the backrest plate during welding issolved, the technical effects of limiting the backrest plate and improving the welding quality are achieved, and the practicability is high. 本实用新型公开了一种基于钢管椅用的踏焊成型模具，包括：下托模，底部连接在踏焊机的工作面上，顶部与靠背板的底面接触，用于托住所述靠背板；连接块，连接在所述踏焊机的工作面上，并