| 摘要 |
PURPOSE: A trimming dies for forming the flange bolt is provided to prevent damage of the bolt to be formed and components of the trimming dies by preventing collision of trimming punch with a robot arm for positioning a flange bolt having a short screw part forming section from the center of the trimming dies. CONSTITUTION: The trimming dies(10) for forming flange bolt comprises a dies ring fixing member(12) which is inserted into an inner front end of a dies main body(11), and on which inner diameter(12a) and stepped projection(12b) are formed; a fixing punch(13) on the outer side of which a catching projection(13a) is projectingly formed so that the catching projection is inserted thus fixed onto the inner diameter of the dies ring fixing member corresponding to a trimming punch (A), wherein a cutting angle(13b) is selectively formed in a circular or rectangular shape from one end of the fixing punch to the inner side of the fixing punch; a stripper(14) the outer side of which is selectively formed in a circular or rectangular shape so that the stripper is installed on the inner diameter of the fixing punch, on one side of which a catching projection(14a) is formed, and in the center of which a guiding hole(14b) for guiding the center of a non-completed bolt (B) is formed; a guide member(15) on which an insertion part(15a) is formed so that one side of the insertion part is axially inserted into the guiding hole of the stripper, on which a stepped projection part(15b) is formed so that the stepped projection part is supported to the stripper with being suspended from an end of the stripper, and a spring insertion part(15c) is extended from the stepped projection part, and in which a hollow(15d) for receiving a stepped surface level part of the bolt (B) is formed; a spacer(16) which is inserted into the dies main body so that one end of the stripper is supported to the spacer, on which a stepped hole(16a) for receiving the stepped projection part is formed, and in which a pin guide hole(16b) is extended from the stepped hole; a compression spring(17) which is inserted into the stepped hole of the spacer, and one side of which is inserted into the spring insertion part of the guide member; and a dies pin(18) for pushing outward the bolt (B) that completes processes with being inserted into the pin guide hole of the spacer and the hollow of the guide member.
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