Thin film capacitor automatic welding instrument capable of accurately fixing and welding method

The invention discloses a thin film capacitor automatic welding instrument capable of accurately fixing, which comprises a welding instrument body, a welding head, a support frame and a fixing frame, the welding instrument body is arranged on the ground, and a controller is arranged above the right side of the welding instrument body; the welding head is installed on the upper portion of the front side of the welding instrument body, and a working platform is welded to the middle of the front side of the welding instrument body. The supporting frame is fixed to the left side of the upper portion of the working platform, and a feeding mechanism is arranged in the supporting frame. According to the automatic welding instrument capable of accurately fixing the thin-film capacitors and the welding method, the thin-film capacitors can be conveniently fed one by one, smooth welding operation is guaranteed, the feeding distance can be flexibly adjusted according to the sizes of the thin-film capacitors, the thin-fil