Superprecision compound die and manufacturing method thereof

摘要

The present invention, by cutting and separating the stripper plate and the die plate after processing the forming hole and the guide hole in the raw material, by minimizing the tolerance generated between the stripper plate and the die plate ultra-compound compound mold that can further improve the precision and its manufacturing The purpose is to provide a method. A lower mold 100 on which the first guide post 110 is mounted; The first guide post 110 is provided with a guide bush 210 is inserted, the upper mold 200 is mounted to be moved up and down on the upper portion of the lower mold 100; A stripper holder 310 fixedly mounted on an upper portion of the lower mold 100 and having a first insertion groove 311 formed therein; A punch core holder 410 fixedly mounted to the lower portion of the upper mold 200 and having a second insertion groove 411 formed therein; A punch core 420 which is inserted into and fixed to the first insertion groove 311 and on which a second guide post 430 is mounted; A first guide hole 441 through which the second guide post 430 is inserted is formed, fixedly mounted under the punch core 420, and a die plate 440 having a first forming hole 442 formed thereon. ; The second guide hole 321 is inserted into the second insertion groove 411 and into which the second guide post 430 is inserted, and a second molding hole concentric with the first molding hole 442 ( 322) is formed stripper plate 320; An inner diameter pin 500 fixedly mounted on the punch core 420 and forming an inner diameter of the product; A pad 600 having a first molding hole 442 through which the inner diameter pin 500 is inserted and mounted to the first molding hole 442 so as to be moved up and down; An outer diameter punch 700 mounted to be movable up and down through the second molding hole 322 and inserted into the first molding hole 442 to push the pad 600 to form an outer diameter of the product; A method for manufacturing an ultra-precision compound mold comprising: a first step of preparing a raw material (800); A second step of forming a molding hole into which the pad 600 and the outer diameter punch 700 are inserted in the raw material 800; A third step of forming a guide hole in which the second guide post 430 is inserted into the raw material 800; A fourth step of cutting the raw material 800 into the stripper plate 320 and the die plate 440; It includes.