DE102005002592A1 - Pretensioning force measuring device, for use in automobile industry, has screwing spindle, and screwing, contacting and ultrasonic unit formed as modular component installed in output shaft and driven via motor by switching drive - Google Patents
Pretensioning force measuring device, for use in automobile industry, has screwing spindle, and screwing, contacting and ultrasonic unit formed as modular component installed in output shaft and driven via motor by switching drive Download PDFInfo
- Publication number
- DE102005002592A1 DE102005002592A1 DE200510002592 DE102005002592A DE102005002592A1 DE 102005002592 A1 DE102005002592 A1 DE 102005002592A1 DE 200510002592 DE200510002592 DE 200510002592 DE 102005002592 A DE102005002592 A DE 102005002592A DE 102005002592 A1 DE102005002592 A1 DE 102005002592A1
- Authority
- DE
- Germany
- Prior art keywords
- screw
- measuring
- preload force
- screwing
- ultrasonic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
- G01L5/246—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed using acoustic waves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
- B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
- B25B23/1425—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by electrical means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
Die Erfindung geht aus von einer Vorrichtung zur Messung der Vorspannkraft bei Schraubverbindungen nach Gattung des Hauptanspruchs. Zu den gebräuchlichsten Methoden des vorspannkraftgesteuerten Anziehens von Schraubverbindungen gehört die Ultraschallmessung. Davon sind, im wesentlichen, die manuell durchzuführende und die automatisch ablaufende Variante bekannt. Beim manuellen Verfahren wird ein Ultrschallprüfkopf mit Koppelmedium, welches Gel oder eine Paste sein kann, von Hand auf den Kopf einer zu vermessenden Schraube aufgebracht. Bei dem automationsfähigen Verfahren, welches in der Serienproduktion anwendbar wäre, müssten die zu messenden Schrauben mit Hilfe eines kopfseitig aufzudampfenden, dreischichtigen Ultraschallsensors versehen werden, gemäß dem U.S.-Patent, Nr. 5. 220.839. Beide Verfahrensweisen unterliegen den physikalischen Eigenschaften der Impuls-Echomessung. Hierbei werden Ultraschallwellen vom Schraubenkopf einer im Endanzug befindlichen Schraube ausgestrahlt, welche den sich dehnenden Schraubenschaft zeitändernd durchlaufen. Dabei werden diese am Schaftende reflektiert und schließlich an der Ultraschallausgangsquelle auf dem Schraubenkopf wieder empfangen um signalgebend weitergeleitet zu werden. Beide Anwendungsvarianten sind jedoch in der Massengüterproduktion, wie beispielsweise in der Automobilindustrie aus Leistungs- und Kostengründen, nicht oder nur sehr begrenzt einsatzfähig, da die auf dem Markt erhältlichen Ultraschallprüfköpfe nicht in automatisch kurztaktend ablaufenden Schraubprozessen verwendbar sind und zu Kopplungsstörungen führen. Die kopfseitig mit Ultraschallsensoren modifizierten Schrauben sind derart aufwendig herzustellen und würden die Kosten für die sie verbindenden Erzeugnissteile erheblich verteuern, wodurch diese Art des vorspannkraftgesteuerten Schraubverfahrens nur in äußerst geringen Spezialfällen durchführbar ist.The The invention is based on a device for measuring the preload force in screw according to the type of the main claim. The most common Methods of tension-controlled tightening of screw connections belongs the ultrasound measurement. Of these, essentially, are the manual ones to be performed and the automatically running variant known. In the manual procedure becomes an ultrasound probe with coupling medium, which may be gel or paste, by hand applied to the head of a screw to be measured. In which automation enabled Procedure, which would be applicable in mass production, would have the to be measured screws with the help of a head side steam three-layered ultrasonic sensor according to the U.S. patent, No. 5. 220,839. Both procedures are physical Properties of the pulse echo measurement. This will be ultrasonic waves emitted from the screw head of a screwed-in screw, which run through the expanding screw shaft time changing. It will be this reflected at the shaft end and finally at the ultrasonic output source again received on the screw head transmitted by signal to become. Both application variants, however, are in bulk goods production, such as For example, in the automotive industry for performance and cost reasons, not or very limited, since the ones available in the market Ultrasonic probes not can be used in automatically kurztaktend expiring screwing and to coupling disorders to lead. The head side modified with ultrasonic sensors screws are make such a costly and would the cost of them considerably increase the cost of connecting connecting parts of Type of tension-controlled screwing only in extremely small special cases feasible is.
Hierunter
fallen in noch kostenintensiverer Weise Schraubverfahren, wie sie
in den Patentanmeldungen nach
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Vorrichtung mit den kennzeichnenden Merkmalen des Hauptanspruchs hat dem gegenüber den großen Vorteil, dass während des Endanzugs einer Schraubverbindung ein plastisch ausgeführter Koppelbelag, welcher endseitig des Schraubenkopfes bei Sechskantschrauben oder grunndseitig von Schrauben mit innenliegenden Antriebsmerkmalen installiert ist, als signalübertragendes Medium genutzt werden kann. Dadurch ist dieses Verfahren auch an kurztaktenden Montageanlagen ausfallfrei einzusetzen. Dies hat den weiteren Vorteil, dass eine Modifizierung von Schrauben mit mehreren signalverarbeitenden Ultraschallsensorschichten, welche nicht nur die Kosten pro Schraube extrem ansteigen ließen, entfallen können. Zwangsläufig ist somit auch die Gefahr einer Beschädigung der Ultraschallsensoren durch Umfüll- und Beschickungsvorgängen an Produktionsanlagen, in Verbindung erheblicher Störungen, ausgeschaltet. Demgegenüber können nunmehr äußerst preiswerte und unempfindliche, plastisch verformbare Koppelbeläge außerhalb- oder innerhalb einer Montageanlage, vor dem Schraubprozess, leckagefrei aufgebracht werden. Die Automatisierung des vorspannkraftgesteuerten Anzugsverfahrens wird dadurch funktionsfähig realisierbar. Ebenfalls von großer Bedeutung ist, dass Teile der erfindungsgemäßen Vorrichtung als Baugruppe endseitig einer Schraubspindel bzw. zwischen den Baugruppen einer solchen installiert werden können, sodass ein platzsparender Aufbau einer Schraubspindel, nach dem Baukastenprinzip gestalteter Einzelmodule, gewährleistet ist. Dadurch wird es möglich, sehr kostengünstige nach dem Prinzip des vorspannkraftgesteuerten Schraubverfahrens genau anzuziehende Schraubsysteme vor allem in der Massengüterproduktion, wie beispielsweise in der Automobilindustrie, einzusetzen. Aus Qualitätsgründen ist dabei von sehr großem Vorteil, dass das hochgenaue vorspannkraftgesteuerte Schraubmessverfahren dem sehr ungenau arbeitenden, drehmomentgesteuerte Schraubmessverfahren weit überlegen ist.The inventive device with the characterizing features of the main claim has against the huge Advantage that while the final tightening of a screw connection a plastically executed coupling covering, which end of the screw head with hexagon screws or green side of screws with internal drive features is installed as a signal transmitting Medium can be used. As a result, this method is also on use short-cycle assembly systems failure-free. This has the further advantage that a modification of screws with several signal processing ultrasonic sensor layers, which not only The costs per screw could rise extremely, can be omitted. Is inevitable thus also the risk of damage to the ultrasonic sensors by transferring and loading operations at production facilities, in connection with considerable disturbances, switched off. In contrast, can now extremely cheap and insensitive, plastically deformable coupling coverings outside or within an assembly plant, before the screwing process, leak-free be applied. The automation of the prestressing force controlled Tightening process becomes viable. Also of great Significance is that parts of the device according to the invention as an assembly end of a screw or between the modules of a can be installed so that a space-saving construction of a screw, after the Modular principle of designed individual modules, is guaranteed. It will possible, very inexpensive according to the principle of the prestressing force controlled screwing process exactly attractive tightening systems, especially in bulk goods production, as in the automotive industry, use. For quality reasons is of a very large Advantage that the highly accurate tension-controlled Schraubmessverfahren the very inaccurate working, torque-controlled Schraubmessverfahren far superior is.
Zeichnungendrawings
Ausführungsbeispiele sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen!embodiments are shown in the drawing and explained in more detail in the following description. It demonstrate!
Beschreibung der AusführungsbeispieleDescription of the embodiments
In
In
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Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510002592 DE102005002592A1 (en) | 2005-01-20 | 2005-01-20 | Pretensioning force measuring device, for use in automobile industry, has screwing spindle, and screwing, contacting and ultrasonic unit formed as modular component installed in output shaft and driven via motor by switching drive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510002592 DE102005002592A1 (en) | 2005-01-20 | 2005-01-20 | Pretensioning force measuring device, for use in automobile industry, has screwing spindle, and screwing, contacting and ultrasonic unit formed as modular component installed in output shaft and driven via motor by switching drive |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005002592A1 true DE102005002592A1 (en) | 2006-08-03 |
Family
ID=36686254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE200510002592 Withdrawn DE102005002592A1 (en) | 2005-01-20 | 2005-01-20 | Pretensioning force measuring device, for use in automobile industry, has screwing spindle, and screwing, contacting and ultrasonic unit formed as modular component installed in output shaft and driven via motor by switching drive |
Country Status (1)
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DE (1) | DE102005002592A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011075859A1 (en) * | 2011-05-16 | 2012-11-22 | Bayerische Motoren Werke Aktiengesellschaft | Testing apparatus for impulse wrench used for vehicle, has lubrication system which is provided for supplying lubricant between bolt head and contact surface |
DE102012005614A1 (en) | 2012-03-22 | 2013-09-26 | Matthias Brenneis | Sensory connection element and manufacturing method |
EP2411780A4 (en) * | 2009-03-27 | 2017-06-07 | Atlas Copco Industrial Technique AB | Method and device for ultrasonic measurements |
CN107806948A (en) * | 2017-09-20 | 2018-03-16 | 中铝材料应用研究院有限公司 | Ultrasonic residual stress detector |
CN111623910A (en) * | 2020-05-25 | 2020-09-04 | 中铁大桥科学研究院有限公司 | Suspension bridge cable clamp screw axial force identification method based on ultrasonic echo envelope modeling |
-
2005
- 2005-01-20 DE DE200510002592 patent/DE102005002592A1/en not_active Withdrawn
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2411780A4 (en) * | 2009-03-27 | 2017-06-07 | Atlas Copco Industrial Technique AB | Method and device for ultrasonic measurements |
DE102011075859A1 (en) * | 2011-05-16 | 2012-11-22 | Bayerische Motoren Werke Aktiengesellschaft | Testing apparatus for impulse wrench used for vehicle, has lubrication system which is provided for supplying lubricant between bolt head and contact surface |
DE102011075859B4 (en) | 2011-05-16 | 2022-07-07 | Bayerische Motoren Werke Aktiengesellschaft | Tester for impulse wrenches with a test bolt |
DE102012005614A1 (en) | 2012-03-22 | 2013-09-26 | Matthias Brenneis | Sensory connection element and manufacturing method |
WO2013139464A1 (en) | 2012-03-22 | 2013-09-26 | Peter Groche | Sensor-containing connection element and manufacturing method |
DE102012005614B4 (en) * | 2012-03-22 | 2013-10-17 | Matthias Brenneis | Sensory connection element and manufacturing method |
US9249820B2 (en) | 2012-03-22 | 2016-02-02 | GLBS Patentverwertungsgesellschaft GbR | Sensor-containing connection element and manufacturing method |
US10144097B2 (en) | 2012-03-22 | 2018-12-04 | GLBS Patentverwertungsgesellschaft GbR | Sensor-containing connection element and manufacturing method |
CN107806948A (en) * | 2017-09-20 | 2018-03-16 | 中铝材料应用研究院有限公司 | Ultrasonic residual stress detector |
CN111623910A (en) * | 2020-05-25 | 2020-09-04 | 中铁大桥科学研究院有限公司 | Suspension bridge cable clamp screw axial force identification method based on ultrasonic echo envelope modeling |
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8122 | Nonbinding interest in granting licenses declared | ||
8139 | Disposal/non-payment of the annual fee |