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1. 发明公开

EP0182586A2 A mandrel assembly 失效
标题翻译： Spanndornsatz。
公开(公告)号：EP0182586A2
公开(公告)日：1986-05-28
申请号：EP85308226.1
申请日：1985-11-12
申请人： ERICKSON TOOL COMPANY
发明人： Strand, Kevin O.
IPC分类号： B23B29/02 , B23B31/40 , B23B29/034
CPC分类号： B23B29/02 , B23Q2220/008 , Y10S408/708 , Y10T279/1008 , Y10T279/1033 , Y10T279/1041 , Y10T408/39 , Y10T408/558
摘要： Apparatus for and method of clamping on the inner surface of a clamping aperture to journal a rotatable tooling bar, in particular to provide air bearing support for a rotatable tooling bar (14) such as a boring bar, are described. One or two mandrels (12, 13) may be provided for the tooling bar (14) to form a complete mandrel assembly with the tooling bar. An air pressure expansible collet (52) is provided on each mandrel (12, 13) so that each may be clamped within a respective clamping aperture (15, 16) such as an aperture on a workpiece (17) itself. Air under pressure is supplied to the two mandrels (12, 13) simultaneously to accomplish, first, an air bearing centering of each mandrel (12, 13) around the tooling bar (14) as a guide; second, an expansion of the collet (52) on each mandrel for clamping of each mandrel within the clamping apertures; and, third, provision of an air bearing support and centering of the tooling bar (14) within the two mandrels (12, 13) during machining for precise machining of the workpiece (17) by the continued air supply.
摘要翻译：描述了用于夹紧在夹紧孔的内表面上的装置和方法，用于使被旋转的工具杆以可旋转工具杆的方式被夹紧以提供用于可旋转工具杆（14）（例如镗杆）的空气轴承支撑。可以为工具杆（14）提供一个或两个心轴（12,13），以与工具杆形成完整的心轴组件。在每个心轴（12,13）上设置有空气压力可膨胀夹头（52），使得每个夹头可以夹紧在相应的夹紧孔（15,16）内，例如工件（17）上的孔。同时向两个心轴（12,13）供应空气，首先，以围绕工具杆（14）的每个心轴（12,13）为中心的空气轴承作为导向件; 第二，在每个心轴上的夹头（52）的膨胀以将每个心轴夹紧在夹紧孔内; 以及第三，在机加工期间，通过连续空气供应来精确地加工工件（17），在两个心轴（12,13）内提供空气轴承支撑件和工具杆（14）的对中。

2. 发明授权

EP0182586B1 A mandrel assembly 失效
标题翻译：一个MANDREL总成
公开(公告)号：EP0182586B1
公开(公告)日：1990-10-24
申请号：EP85308226.1
申请日：1985-11-12
申请人： ERICKSON TOOL COMPANY
发明人： Strand, Kevin O.
IPC分类号： B23B29/02 , B23B31/40 , B23B29/034
CPC分类号： B23B29/02 , B23Q2220/008 , Y10S408/708 , Y10T279/1008 , Y10T279/1033 , Y10T279/1041 , Y10T408/39 , Y10T408/558

3. 发明公开

EP0182586A3 A mandrel assembly 失效
标题翻译：一个MANDREL总成
公开(公告)号：EP0182586A3
公开(公告)日：1987-08-26
申请号：EP85308226
申请日：1985-11-12
申请人： ERICKSON TOOL COMPANY
发明人： Strand, Kevin O.
IPC分类号： B23B29/02 , B23B31/40 , B23B29/034
CPC分类号： B23B29/02 , B23Q2220/008 , Y10S408/708 , Y10T279/1008 , Y10T279/1033 , Y10T279/1041 , Y10T408/39 , Y10T408/558
摘要： Apparatus for and method of clamping on the inner surface of a clamping aperture to journal a rotatable tooling bar, in particular to provide air bearing support for a rotatable tooling bar (14) such as a boring bar, are described. One or two mandrels (12, 13) may be provided for the tooling bar (14) to form a complete mandrel assembly with the tooling bar. An air pressure expansible collet (52) is provided on each mandrel (12, 13) so that each may be clamped within a respective clamping aperture (15, 16) such as an aperture on a workpiece (17) itself. Air under pressure is supplied to the two mandrels (12, 13) simultaneously to accomplish, first, an air bearing centering of each mandrel (12, 13) around the tooling bar (14) as a guide; second, an expansion of the collet (52) on each mandrel for clamping of each mandrel within the clamping apertures; and, third, provision of an air bearing support and centering of the tooling bar (14) within the two mandrels (12, 13) during machining for precise machining of the workpiece (17) by the continued air supply.

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