The invention relates to the technical field of steel structure
machining, in particular to a heavy-load box type steel structure
welding residual stress releasing device and method.The heavy-load box type steel structure
welding residual stress releasing device comprises a rectangular plate, a strip-shaped hole is formed in the rectangular plate, a movable seat is slidably mounted in the strip-shaped hole, and an
impact rod is slidably mounted on the movable seat; an
impact block is fixedly installed at one end of the
impact rod, the impact rod is sleeved with a telescopic spring, a rectangular block is fixedly installed at one end of the impact rod, a U-shaped frame is installed on the movable seat through a reciprocating
assembly, trapezoidal blocks are installed at the two ends of the U-shaped frame through first spring rods, and a separation
assembly is arranged on the movable seat. Through mutual cooperation of the reciprocating
assembly, the U-shaped frame, the trapezoidal block, the separation assembly, the impact rod and the telescopic spring, the impact block is driven to continuously knock the
welding position of a steel structure,
residual stress at the welding position is removed, manual knocking by workers is not needed, operation is easy, time and labor are saved, and the
workload of the workers is reduced.