The utility model relates to an internal cooling and close toothed milling cutter for finishing an inner arc curved surface of a steam turbine blade, which relates to a gear milling cutter. The utility model comprises a knife rod and two cutter head, the cutter head symmetrically arranged on both ends at both ends of the knife rod, which is made up of two cutter head and the cutter rod body, internal cooling with cooling hole cutter tooth two, each knife head is a round shape structure, the outer end of the cutter bar in small diameter one end of the diameter of the conical structure, each knife head is provided with 10 teeth, 10 teeth along the same circumference uniformly arranged, each cutter head cutting bevel angle is 8 degrees, each tooth tip is provided with rounded corners, each tooth has a right-handed helix angle, tooth circumference of each tooth before angle is 15 degrees, the circumference of each tooth of the tooth after the angle is 10 degrees, each tooth of the tooth face angle is 10 degrees, each tooth of the tooth face angle is 10 degrees. The utility model is used for processing the inner back arc surface of the steam turbine blade.
【技术实现步骤摘要】
一种精加工汽轮机叶片内背弧曲面专用内冷却密齿铣刀
本技术涉及一种密齿铣刀,具体涉及一种精加工汽轮机叶片内背弧曲面专用内冷却密齿铣刀。
技术介绍
叶片是汽轮机机组中数量极大的精密部件,叶片的制造周期直接影响汽轮机机组的装配及交货期,因此研究叶片的高效加工意义重大。汽轮机叶片内背弧曲面的精铣加工,以前采用机夹刀片式的双刃球头铣刀加工,该刀具为外冷却结构,精铣加工效率较低,影响叶片的生产制造周期,为了改善该加工状况,研制了精加工汽轮机叶片内背弧曲面专用内冷却密齿铣刀。
技术实现思路
本技术针对上述缺陷而提供一种精加工汽轮机叶片内背弧曲面专用内冷却密齿铣刀。本技术为解决上述技术问题采取的技术方案是:本技术的一种精加工汽轮机叶片内背弧曲面专用内冷却密齿铣刀,所述内冷却密齿铣刀由刀杆和两个刀头组成,两端的刀头对称设置在刀杆的两端,两个刀头与刀杆一体制成,内冷却密齿铣刀的内部设有两个内冷却孔,每个刀头为圆台形结构,圆台形结构的外端直径小于刀杆一端的直径,每个刀头设有10个刀齿,10个刀齿沿同一圆周均布设置,每个刀头的切削斜角α为8°,每个刀齿的刀尖设有圆角,每个刀齿具有右旋螺旋角β,每 ...
【技术保护点】
一种精加工汽轮机叶片内背弧曲面专用内冷却密齿铣刀,其特征在于:所述内冷却密齿铣刀由刀杆(1)和两个刀头(2)组成,两端的刀头(2)对称设置在刀杆(1)的两端,两个刀头(2)与刀杆(1)一体制成,内冷却密齿铣刀的内部设有两个内冷却孔(3),每个刀头(2)为圆台形结构,圆台形结构的外端直径小于刀杆(1)一端的直径,每个刀头(2)设有10个刀齿(4),10个刀齿(4)沿同一圆周均布设置,每个刀头(2)的切削斜角α为8°,每个刀齿(4)的刀尖设有圆角(4‑1),每个刀齿(4)具有右旋螺旋角β,每个刀齿(4)的圆周齿前角γ为15°,每个刀齿(4)的圆周齿后角θ为10°,每个刀齿(4) ...
【技术特征摘要】
1.一种精加工汽轮机叶片内背弧曲面专用内冷却密齿铣刀,其特征在于:所述内冷却密齿铣刀由刀杆(1)和两个刀头(2)组成,两端的刀头(2)对称设置在刀杆(1)的两端,两个刀头(2)与刀杆(1)一体制成,内冷却密齿铣刀的内部设有两个内冷却孔(3),每个刀头(2)为圆台形结构,圆台形结构的外端直径小于刀杆(1)一端的直径,每个刀头(2)设有10个刀齿(4),10个刀齿(4)沿同一圆周均布设置,每个刀头(2)的切削斜角α为8°,每个刀齿(4)的刀尖设有圆角(4-1),每个刀齿(4)具有右旋螺旋角β,每个刀齿(4)的圆周齿前角γ为15°,每个刀齿(4)的圆周齿后角θ为10...
【专利技术属性】
技术研发人员:孙盛丽,李蕊秀,崔会彬,李辉,魏成双,曲玉芬,汝洪涛,赵祎昕,刘剑,姜秀英,
申请(专利权)人:哈尔滨汽轮机厂有限责任公司,
类型:新型
国别省市:黑龙江,23
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