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    • 4. 发明申请
    • Cylinder head stud removal tool
    • 气缸头螺柱拆卸工具
    • US20050204542A1
    • 2005-09-22
    • US10801708
    • 2004-03-17
    • Bernard Pittman
    • Bernard Pittman
    • B23B47/28B23B49/02B23P6/00B23P6/02B23P19/12B23P23/00B25B27/18
    • B23P6/02B23B47/284B23B49/023B23B2251/64B23C2215/08B25B27/18Y10T29/5147
    • A method and apparatus for the removal of a broken stud from a cylinder head, and rehabilitation thereof, includes a precise alignment block for attachment to at least two intact studs or stud bores of a cylinder head for alignment of a pilot port over the broken stud. Further holes in the block along the length of the block match a stud pattern of a cylinder head of pre-determined stud spacing. The apparatus comprises a series of replaceable steady pilots and corresponding rotary tools in pairs, including an end mill and cooperating milling pilot for flat or concave milling of the end of the broken stud; a drill bit and cooperating drilling pilot for drilling the end of the broken stud; and a tap and cooperating threaded tapping pilot to form new threads in the cylinder head for accepting a new replacement stud. Optionally, a threaded coil insert can be used in the newly prepared stud bore, having outer threads matching the new threads and having inner threads matching a replacement stud.
    • 一种用于从气缸盖移除破碎的螺柱及其修复的方法和装置包括精确的对准块,用于附接到气缸盖的至少两个完整的螺柱或螺柱孔,用于将导向口对准在破碎的螺柱上 。 沿着块的长度的块中的另外的孔匹配预定螺柱间隔的气缸盖的螺柱图案。 该装置包括成对的一系列可更换的稳定飞行员和相应的旋转工具,包括端铣刀和配合铣削引导件,用于对破碎螺柱的端部进行平面或凹铣; 一个钻头和配合的钻探飞行员,用于钻破碎螺柱的一端; 以及龙头和配合的螺纹攻丝飞行员,以在气缸盖中形成新的螺纹,用于接受新的替换螺柱。 可选地,螺纹螺纹插入件可用于新制备的螺柱孔中,其具有与新螺纹相匹配的外螺纹并且具有与更换螺栓匹配的内螺纹。
    • 10. 发明申请
    • Hole Saw and Method
    • 孔锯和方法
    • US20140219736A1
    • 2014-08-07
    • US13762161
    • 2013-02-07
    • Chad Grenner
    • Chad Grenner
    • B23B51/04B23B51/05
    • B23B51/0426B23B2251/406B23B2251/64Y10T408/04Y10T408/8973
    • A breakage resistant hole saw that reduces damage of the pilot hole drill bit caused by the sudden contact of the cutting teeth on the hole saw's cutting body against the hard working surface after the drill bit has penetrated through the working surface. The hole saw disclosed herein includes a cylindrical cutting body mounted on an arbor. Formed on the circular lower edge of the cutting body is a plurality of angled teeth that cut through a working surface when rotated in one direction. Mounted on the end of the arbor is a pilot hole drill bit with a spiral cutting flute configured at a spiral cutting angle to penetrate the working surface when rotated in a direction opposite the cutting direction of the cutting teeth on the cutting body. Also disclosed herein is a method for forming a hole using a hole saw that reduces damage to the pilot hole drill bit.
    • 一种防破裂孔锯,可减少钻头穿透工作面后由钻孔切割体上的切割齿突然接触硬质加工面引起的导向孔钻头的损伤。 本文公开的孔锯包括安装在心轴上的圆柱形切割体。 形成在切割体的圆形下边缘上的是多个成角度的齿,当沿一个方向旋转时,它们穿过工作表面。 安装在心轴的端部的是具有螺旋切割槽的导向孔钻头,其以螺旋切割角度构造,以在与切割体上的切割齿的切割方向相反的方向旋转时穿透工作表面。 本文还公开了一种使用孔锯形成孔的方法,该孔减少了导向孔钻头的损坏。