The invention relates to the technical field of steel
pipe machining, and discloses an opening supporting and fixing device for steel
pipe machining and capable of conveniently and rapidly placing steel pipes. The opening supporting and fixing device comprises a
workbench, a fixing plate is installed at the top end of the
workbench, a placing mechanism is installed on the left side of the fixing plate, and an opening supporting mechanism is connected to the bottom of the placing mechanism; the placing mechanism comprises a mounting plate, a first motor, a transmission shaft, a transmission roller, a first gear, a first rotating shaft, a second gear, a third motor, a moving roller, a supporting frame, a second rotating shaft, a steel
pipe box, a spring, a second motor, an eccentric wheel and an arc-shaped plate; and the opening supporting mechanism comprises a fourth motor, a chain wheel, a third rotating shaft, a belt wheel, a movable plate, a hydraulic telescopic rod, a motor, a third gear, a rack and an opening supporting block. The problem that too much time is wasted due to placement, opening supporting and fixing during steel pipe
machining is solved, the second motor drives the steel pipe box to
shake up and down through the spring, manual steel pipe placement is avoided through the placing mechanism, and the steel pipe machining efficiency is improved.