Brazing filler metal shearing device

The utility model discloses a brazing filler metal shearing device which comprises a device body. The device body comprises a shearing shell and a driven wheel, the shearing shell is hollow and is provided with a shearing cavity, through holes allowing brazing filler metal to pass are formed in the two sides of the shearing shell respectively, a connecting rod is arranged on the driven wheel, the connecting rod is arranged in the shearing cavity in a penetrating mode, a rotary plate is fixedly connected with the end, corresponding to the shearing cavity, of the connecting rod, the rotary plate is movably connected with a push rod, a shearing head is arranged on the other side, corresponding to the rotary plate, of the push rod, a locating plate is fixedly arranged in the shearing cavity, the driven wheel is driven by a transmission device to enable the shearing head inside the shearing cavity to do piston motion, and therefore the brazing filler metal is shorn ceaselessly. The structure is simple, and manufacturing is convenient.