Large-diameter water supply pipe sweat soldering device

The invention discloses a large-diameter water supply pipe hot melting welding device. The core of the large-diameter water supply pipe hot melting welding device is composed of an assembling base, a positioning clamp, a pressurizing assembly and a hot melting assembly. The positioning clamp is provided with a sliding base and a longitudinal and transverse positioning assembly, and accurate butt joint of the water supply pipes is ensured. And the pressurizing assembly uniformly applies pressure to a welding part through the lifting base, the pressurizing unit and the opening and closing adjusting assembly, so that the welding process is optimized. And the hot melting assembly is responsible for heating the interface to guarantee the welding quality. According to the design, the welding efficiency and the butt joint precision are remarkably improved. The problems that in the prior art, the welding efficiency is low, the butt joint precision is poor, and the welding quality is difficult to guarantee are effecti