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1. 发明授权

US06421902B1 Method and device for producing and checking screwed connections 有权
标题翻译：用于生产和检查螺纹连接的方法和装置
公开(公告)号：US06421902B1
公开(公告)日：2002-07-23
申请号：US09446944
申请日：2000-03-29
申请人： Thomas Löffler
发明人： Thomas Löffler
IPC分类号： B23Q1700
CPC分类号： F16B31/02 , F16B23/0084 , F16B31/043 , Y10S411/916 , Y10T29/49766 , Y10T29/53022 , Y10T29/53039
摘要： A method of producing and checking a screw connection of parts by a screw under the effect of a predetermined initial tension force. Moreover, a connecting device controls the sequence of process steps automatically. A screw is especially designed for the use together with the connecting device. The effective initial tension force within the screw shaft is measured during production of the connection by a pulling force measuring device, for instance a wire strain gauge, arranged at a screw head pulling device of the connecting device. A predetermined initial tension force can be produced first by pulling on a screw head, and then maintained by tightening the screw so far that the screw head contacts a contact area outside of one of the parts to be connected.
摘要翻译：一种在预定的初始张力的作用下通过螺钉生产和检查零件的螺纹连接的方法。此外，连接装置自动控制处理步骤的顺序。螺丝是专为与连接装置一起使用而设计的。通过布置在连接装置的螺旋头牵引装置的拉力测量装置（例如线应变计）在生产连接期间测量螺杆轴内的有效初始张力。可以首先通过拉动螺钉头来产生预定的初始张力，然后通过拧紧螺钉来保持螺钉头直到接触要连接的部件之一的接触区域的接触区域。

2. 发明授权

US06332378B1 Method and device for producing screw assemblies 有权
标题翻译：用于生产螺丝组件的方法和装置
公开(公告)号：US06332378B1
公开(公告)日：2001-12-25
申请号：US09355915
申请日：1999-12-09
申请人： Thomas Löffler
发明人： Thomas Löffler
IPC分类号： B25B2902
CPC分类号： B25B23/14 , B25B23/1425 , F16B31/02
摘要： The invention relates to a method and a device for producing screw assemblies, which can be preferably used in industrial production assembly processes, in workshops and in installation technology supervision involving high safety standards. The invention also relates to special screws to carry out said method. The invention is characterized in that the actual elongation of the screw is measured during screwing.
摘要翻译：本发明涉及一种用于生产螺杆组件的方法和装置，其可优选用于工业生产组装过程，车间和安全技术监督，涉及高安全标准。本发明还涉及用于执行所述方法的特殊螺丝。本发明的特征在于在拧紧期间测量螺杆的实际伸长率。

3. 发明授权

US06351997B1 Method and device for checking screwed connections 有权
标题翻译：用于检查螺纹连接的方法和装置
公开(公告)号：US06351997B1
公开(公告)日：2002-03-05
申请号：US09446943
申请日：1999-12-30
申请人： Thomas Löffler
发明人： Thomas Löffler
IPC分类号： F16B3102
CPC分类号： F16B31/02 , G01L5/24
摘要： A method and a device for checking a screwed connection and to special screws to implement the method. The method is based on the utilization of a special screw with a one-piece cored hole pressing together two components with a prestress force. The method includes determining the original length of the special screw by measuring the length of the cored hole; determining the length of the special screw when stressed by measuring the distance from the head of the screw to the bottom of the bore and comparing the measuring values of the lengths with predetermined data. According to predetermined criteria, it is determined whether sufficient prestress force has been applied or whether it is necessary to further tighten the screw. The device for checking the prestress force includes the special screw and a length measuring device determining the distance from the base surface of the cored hole to the screw head and the distance between the front face of the core of the cored hole to the screw head.
摘要翻译：用于检查螺纹连接的方法和装置以及用于实施该方法的特殊螺钉。该方法基于利用具有一体式芯孔的特殊螺钉，其中两个部件用预应力挤压在一起。该方法包括通过测量芯洞的长度来确定特殊螺丝的原始长度; 通过测量从螺钉头部到孔底部的距离来确定特殊螺钉的长度，并将长度测量值与预定数据进行比较。根据预定的标准，确定是否施加足够的预应力或是否需要进一步拧紧螺钉。用于检查预应力的装置包括专用螺钉和长度测量装置，其确定从芯孔的基面到螺钉头的距离以及芯孔的芯的前面与螺钉头之间的距离。

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