Photosensitive diode welding clamp

The utility model relates to the technical field of electronic device assembly, in particular to a photosensitive diode welding fixture, which can realize accurate positioning of a photosensitive diode, improve welding quality and welding efficiency and avoid later reworking, and comprises a base, a support table is mounted on the base, a rotary air cylinder is fixed on the support table, and the rotary air cylinder is fixed on the support table. A rotating shaft of the rotating air cylinder is connected with the center of the back face of the rotating disc, a vacuum suction table is installed on the front face of the rotating disc, a front vacuum suction opening standard block is arranged on the vacuum suction table, a front vacuum suction opening is used for sucking a PCB, and a linear guide rail is arranged on the rotating disc above the vacuum suction table. Two supports which are symmetrically arranged are installed on the linear guide rail through sliding blocks, and vacuum suction heads corresponding t