Titanium alloy wire pier head preparation device and method

The invention discloses a titanium alloy wire pier head preparation device, comprising a pressing block and a cushion block which are oppositely arranged. The pressing block comprises a first mold core; a groove is formed in the first mold core, faces the cushion block, and is in tight fit with the end of a titanium alloy wire; the cushion block comprises a second mold sleeve; a channel allowing the titanium alloy wire to penetrate through is formed in the position, opposite to the groove, of the second mold sleeve; a second mold core is arranged at the end, close to the groove, of the channel, and is a circular ring body; the outer peripheral surface of the circular ring body is in tight fit with the side wall of the channel; the inner peripheral surface of the end, close to the groove, of the circular ring body extends towards the outer peripheral surface to form a shaping cavity which is the same as a pier head to be machined in shape; and both the first mold core and the second mold sleeve are connected i