Thermocouple wire welding tool clamp

The utility model relates to the technical field of welding fixtures, in particular to a thermocouple wire welding tool fixture. Comprising a base, a sliding rail is arranged on the base, a sliding block is arranged on the sliding rail, a motor is arranged at one end of the base, the output end of the motor is connected with a lead screw, and the lead screw penetrates through the sliding block; a clamping plate capable of fixing a metal wire is arranged at the top of the sliding block, the clamping plate comprises two bottom plates which are embedded with each other, a plurality of first protrusions are arranged on the edge of one side of each bottom plate, and wire grooves are formed in the first protrusions; the top of each bottom plate is provided with a cover plate, each cover plate is provided with a plurality of second protrusions, the second protrusions correspond to the first protrusions, and the width of the second protrusions is smaller than that of the first protrusions. According to the welding to