Clamping tool for conductor molybdenum needle in energy transmission window of broadband millimeter wave traveling wave tube

The utility model discloses a clamping tool for a conductor molybdenum needle in an energy transmission window of a broadband millimeter wave traveling wave tube. The clamping tool comprises a three-jaw chuck, a spring chuck, an inner core chuck and an ejector, the spring chuck is clamped and fixed on the three-jaw chuck; the ejector, the inner core chuck and the inner conductor molybdenum needleare sequentially arranged in the spring chuck; wherein the inner core chuck is clamped and fixed on the spring chuck, an ejector is further arranged between the spring chuck and the inner core chuck,an inner conductor molybdenum needle is fixed in the inner core chuck, and at least part of the ejector extends into the inner core chuck to eject the inner conductor molybdenum needle. According to the clamping tool, the problems that in the prior art, the clamping mode of a conductor molybdenum needle in an energy transmission window of a broadband millimeter wave traveling wave tube is troublesome, calibration is needed