Fixture and locating processing method

The invention discloses a fixture and a locating processing method. The fixture is used for locating a mobile phone shell provided with at least two locating pin holes, and comprises a bottom plate, atop plate, a first supporting component, a product carrier plate, hole locating telescopic mechanisms and XY axis locating mechanisms. The top plate is opposite to the bottom plate. The first supporting component is connected with the bottom plate and the top plate. The product carrier plate is mounted on the top plate and is used for placing the mobile phone shell. The hole locating telescopic mechanisms are positioned between the bottom plate and the top plate, and are used for inserting the mobile phone shell prelocated in the locating pin holes. The XY axis locating mechanisms are positioned around the product carrier plate, and are used for locating the mobile phone shell in the X axis direction and the Y axis direction after the mobile phone shell is prelocated. The XY axis locatingmechanisms comprise self-