KIM, IL HWAN,김일환,AN, BYEONG CHUL,안병철,SONG, GEUN SOO,송근수,JUNG, IN TAE,정인태
申请号：
KR1020170008490
公开号：
KR1018638770000B1
申请日:
2017.01.18
申请国别(地区):
KR
年份:
2018
代理人:
摘要：
The present invention relates to a method to manufacture a screw for implantation. According to the present invention, the method comprises: a first step of forming a first guide groove on a center of a material, wherein the material of a round rod is engaged with a main chuck； a second step of forming a flat slope up to a predetermined length on an outer surface of the material and forming a conical body part along the slope； a third step of eccentrically entering a variable wheeling cutter in a center of the body part and allowing the wheeling cutter to obliquely form a screw part up to the length of the body part, wherein widths of pitches and valleys of the screw part are gradually varied； a fourth step of forming a fixed part extended from a rear end of the screw part, and cutting and separating the material of the rear part when the fixed part is engaged with a sub chuck, so as to form a semi-finished product； a fifth step of forming a tool groove in the fixed part up to a predetermined depth of the body part and forming a second guide groove communicating with the first guide groove； and a sixth step of transforming the tool groove into an angled shape and cutting the fixed part of the semi-finished product separated from the sub chuck so as to complete a product. Accordingly, a screw part with pitches and valleys having gradually varied widths is able to be formed to be inclined through only one processing by an improved wheeling cutter, thus providing effects capable of reducing human power in accordance with manufacturing, minimizing defect due to stabilized processing, and maximizing completeness of an operation due to a uniform surface of valleys.본 발명은 임플란트용 나사를 제조하는 방법에 관한 것으로 그 구성의 특징으로서, 환봉의 소재가 메인척에 맞물려지고, 상기 소재의 중앙에 제1가이드홈을 형성하는 1단계； 상기 소재의 외면에 설정한 길이까지 편평한 경사면을 형성하고, 상기 경사면을 따라 원뿔형의 몸통부를 형성하는 2단계； 상기 몸통부의 중앙에 가변형 휠링커터가 편심하게 진입되고, 상기 휠링커터가 몸통부의 길이까지 피치와 골의 너비가 점차적으로 가변하는 나사부를 경사지게 형성하는 3단계； 상기 나사부의 후단에 연장되는 고정부를 형성하고, 상기 고정부가 보조척에 맞물린 상태에서 후단의 소재를 절
