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实用新型
CN202367074U 一种锻造门框法兰整形用的模芯 失效 - 权利终止

一种锻造门框法兰整形用的模芯
摘要：
本实用新型公开了一种锻造门框法兰整形用的模芯。属于机械锻造技术领域，涉及一种椭圆形状的环形锻件的整形模芯。本实用新型的任务是提供一种锻造门框法兰整形用的模芯。使其坯件上椭圆形状的中部空腔结构的表面整齐、平整，给后续机加工留下较少的均匀的切削余量，其金属纤维连续，增加其机械零件的使用寿命，降低其制造成本。其技术方案要点是：芯模(1)由半椭圆形状的左侧芯模(2)和半椭圆形状的右侧芯模(3)构成，所述左侧芯模(2)上与右侧芯模(3)结合处设置有凹下的“止口”槽(5)，所述右侧芯模(3)上与左侧芯模(2)结合处设置有凸起的“止口”条(6)，所述芯模(1)的下部设置有斜表面构成的椭圆形状的冲头(4)。本实用新型结构简单。
摘要（英）：

The utility model discloses a mold core for shaping a forged doorframe flange, belongs to the technical field of mechanical forging, and relates to an elliptical shaping mold core for an annular forging. The utility model aims to provide a mold core for shaping a forged doorframe flange. An elliptical middle cavity structure on a blank has a neat and smooth surface, a little uniform cutting allowance is left for subsequent machining, metal fibers are continuous, the service life of mechanical parts is prolonged, and the manufacturing cost is reduced. The key points of the technical scheme are that: a core mold (1) consists of a semielliptical left core mold (2) and a semielliptical right core mold (3), wherein a downwards concave seam allowance groove (5) is formed at a joint of the left core mold (2) and the right core mold (3); a raised seam allowance strip (6) is arranged at the joint of the right core mold (3) and the left core mold (2); and the lower part of the core mold (1) is provided with an elliptical punch (4) consisting of oblique surfaces. The mold core has a simple structure.

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