Automatic production line for three-way clamping and pressing pipe

The utility model discloses an automatic production line for three-way clamping and pressing pipes. The automatic production line comprises a first straight pipe punching device, a welding device and a three-way clamping and pressing pipe forming device. A first straight pipe feeding device used for providing a first straight pipe for the first straight pipe punching device is arranged on the upstream portion of the first straight pipe punching device. A first straight pipe transferring device used for carrying punched first straight pipes to the welding device is arranged between the first straight pipe punching device and the welding device. A second straight pipe feeding device used for placing a second straight pipe into the welding device is arranged at the welding device; and a three-way pipe blank carrying device for carrying a three-way pipe blank from the welding device to the three-way clamping and pressing pipe forming device is arranged between the welding device and the three-way clamping and pre