The invention is suitable for the field of
welding, and provides a special-shaped
pipe welding device for fitness equipment production, the special-shaped
pipe welding device comprises a base table plate and a butt-joint plate, the base table plate is fixedly arranged, the butt-joint plate is movably arranged, and a sliding rail mechanism is arranged at the bottom of the butt-joint plate; a welding table is arranged between the base table plate and the
butt joint plate, a surrounding welding mechanism is arranged on the welding table, and a clamp mechanism is arranged at the top end of the base table plate and the top end of the
butt joint plate. When the special-shaped workpiece clamping device is used, a worker pulls the pulling frame, the connecting frame and the movable block backwards through the pull ring, then two special-shaped workpieces to be treated are placed on the base table plate and the
butt joint plate correspondingly, and when the worker loosens the pull ring, the pulling frame, the connecting frame and the movable block apply pressure for locking the special-shaped workpieces through the clamping spring; when the locking bolt is loosened, the angle can be changed by rotating the inner container, locking is conducted again, and the
cantilever beam rod and the rubber block at the end of the
cantilever beam rod can abut against the irregular side wall of the special-shaped workpiece.