Welding head and welding method thereof

The invention discloses a welding head and a welding method thereof. The welding head comprises a condensation machine head, a water cooler is arranged on the top end of the condensation machine head,a connecting mechanism is arranged on the top end of the water cooler, a damping cushion block is arranged on the top end of a damping spring, a clamping spring is arranged in a connecting casing pipe, and a clamping bending plate is arranged on the bottom end of the clamping spring. The welding head is scientific and reasonable in structure and safe and convenient to use, a mounting mechanism isarranged, through the effect of the clamping bending plate and the clamping spring, the dual hands of a user can be liberated during mounting, the user can more rapidly and stably fix the welding head, the problem that when an existing welding head is mounted, the user needs to hold the welding head by one hand, the other hand rotates a bolt and nut for fixing, and rapid operation by a worker isnot facilitated can be solv