WO2012019575A1 - Vorrichtung zur erzeugung eines drehmomentgenauen anzugsmoments für schraubverbindungen - Google Patents
Vorrichtung zur erzeugung eines drehmomentgenauen anzugsmoments für schraubverbindungen Download PDFInfo
- Publication number
- WO2012019575A1 WO2012019575A1 PCT/DE2011/001020 DE2011001020W WO2012019575A1 WO 2012019575 A1 WO2012019575 A1 WO 2012019575A1 DE 2011001020 W DE2011001020 W DE 2011001020W WO 2012019575 A1 WO2012019575 A1 WO 2012019575A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- torque
- multiplier
- wrench
- determined
- output
- Prior art date
Links
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 32
- 238000011156 evaluation Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000000418 atomic force spectrum Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000011157 data evaluation Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Classifications
-
- 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
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
- B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
- B25B13/467—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member which are gear-operated
-
- 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
- B25B17/00—Hand-driven gear-operated wrenches or screwdrivers
- B25B17/02—Hand-driven gear-operated wrenches or screwdrivers providing for torque amplification
-
- 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
- B25B23/0078—Reaction arms
-
- 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
Definitions
- the invention relates to a device for generating a torque-precise torque for screw according to the preamble of claim 1 and a method for calibrating such a device according to the preamble of claim. 6
- Torque multipliers also referred to as force multipliers in the following, generally have highly-geared planetary gears. Spur gears or epicyclic gears are also used occasionally in torque multipliers.
- the input torque is set manually and usually generated with the help of a ratchet or with the help of a torque wrench.
- the output torque of the transmission can then be determined on the basis of a previously determined and known transmission ratio stored, for example, in a table. However, the transmission efficiency is not considered. Alternatively, the output torque of a Drehmoment Robinson deviste, which is also previously determined, taken. Here, the transmission efficiency is taken into account, with interpolation being carried out at intermediate values.
- CONFIRMATION COPY There is now a desire, in the context of quality assurance with manual torque and force multipliers, to randomly check and document the applied torque values.
- a first known from the prior art solution provides to integrate a torque sensor in the transmission of the force multiplier.
- the sensor must be supplied with energy via an external evaluation unit, also called a datalogger. In this the data is recorded and stored.
- Another solution known from the prior art provides a torque sensor connected downstream of the force multiplier.
- a suitable torque sensor is arranged on the output shaft of the transmission.
- the power supply and data recording by means of a wired external device.
- the invention is therefore based on the object to provide a device which allows the operator to be used without restrictions by cables or external devices and on the other hand to ensure the greatest possible security in determining the output torque.
- the object is achieved by a device for generating a torque-tight torque of the type described above by a Drehmomentvervielverttiger and adapted to this and calibrated together with this electronic, the torque-indicating torque wrench.
- the electronic torque wrench has a display to display the output torque described above, wherein input and output torque are related to the transmission.
- the torque wrench has an input device for inputting torque limit values.
- the torque wrench preferably has a memory device for storing the data characterizing the tightening torque of the screw connection.
- the memory device in this case comprises a read-write memory, so that if necessary, the calibrations can be repeated and made again.
- the memory is - among other data - advantageously also stored in the calibration gear ratio of the torque multiplier stored.
- the transmission ratio is preferably stored as an interpolation curve of the functional relationship of the output torque in dependence on the input torque of the torque multiplier in the memory.
- a particularly advantageous embodiment provides that the transmission have an RFID transponder and the torque wrench an RFID reader, which are matched to each other.
- the torque wrench detects the gearbox. It can be stored in the memory, the transmission characterizing data used to determine the tightening torque of the screw.
- the invention is further based on the object of providing a method which enables in a simple manner a common calibration of torque multipliers and electronic torque wrenches, in particular specific data of the torque multiplier and in particular its transmission should be taken into account in the calibration.
- Electronic torque wrench is done so that the gear ratio is based on at least one over the entire torque range obtained average value. This so determined gear ratio is stored in the memory of the torque stored and taken into account in the determination of the tightening torque of the screw in later mentvor réellen.
- the actual transmission ratio over the entire torque range at different angular positions of the output shaft of the torque multiplier is determined and stored. For this purpose, first the transmission ratio over the entire torque range is determined and stored at a first angle, then the output shaft is further rotated by predeterminable angle and determined in each case at these angular positions over the entire torque range, the transmission ratio and stored.
- the output shaft is further rotated by an angle of 90 ° until it is twisted by an angle of 180 °.
- This further rotation by predeterminable angle is based on the finding that the torque curve of the output torque as a function of the input torque substantially shows a periodic curve, which can be described by a sine or cost-plus function. Further rotation by multiples of 90 ° makes it possible to determine this periodic sine / cosine curve. If it is rotated further by angles smaller than 90 °, for example by 45 °, then it is necessary to continue rotating until the output shaft of the torque multiplier has rotated by 180 °. From the values thus obtained, a mean transmission ratio is then calculated and stored in the memory of the electronic torque wrench.
- an interpolation curve in the first approximation, an interpolation straight line between the thus determined at different angular ratios gear ratios and determined based on this interpolation curve, the output torque in dependence on the input torque.
- Fig. 1 shows schematically a device making use of the invention for generating a torque-precise tightening torque for screw connections
- FIG. 2 shows the torque multiplier of the device shown in FIG. 1;
- Fig. 3 is a plan view of the torque multiplier illustrated in Fig. 2;
- FIG. 4 shows the output torque versus the input torque
- FIG. 5 shows the output torque versus the input torque to explain a variant of the method according to the invention.
- the device shown in the figure for generating a torque-torque torque includes a Drehmomentvervieltigtiger, in common usage and hereinafter also referred to as Kraftvervieltigtiger 100 having an input shaft 101 and an output or output shaft 102. Both input and output shafts end, for example, with a square, on which acts in the case of the input shaft, a torque wrench 200 and engages in the case of the output shaft 102 in a so-called "power nut” or simply “nut” 140. By means of the nut 140, a tightening torque is transmitted to a (not shown) screw connection.
- the torque multiplier 100 further includes a known reaction arm 130 that prevents the torque multiplier from spinning during the tightening operation by striking a stationary object.
- the torque multiplier 100 is manually operated by a torque wrench 200.
- the torque wrench 200 has a handle 210 on.
- the torque wrench 200 itself is an electronic torque wrench 200 with a display 205 and an input device 220.
- the input device 220 serves, for example, for inputting data characterizing the screwdriving process.
- the adjustment of the torque wrench 200 via a selection menu. After selecting an item, the desired output torque and the desired limit values are entered.
- an operator is visually informed of the progress, for example by means of light bars. Shortly before reaching the target torque, the operator can also be informed by an acoustic signal.
- a likewise preferably optical and possibly also acoustic "okay” or “non-kay” display takes place and the achieved value of the torque is stored in a data memory which is provided in the torque wrench 200 (not shown). All values stored in the torque wrench can be transferred to a PC or laptop after completion of all work and further evaluated there.
- the torque wrench is battery or battery operated.
- the torque multiplier 100 or the transmission gear 110 of the torque multiplier 100 has an RFID transponder which interacts with an RFID reader arranged in the torque wrench 200.
- the torque wrench 200 effectively detects the torque multiplier 100 or the transmission 110 of the torque multiplier 100 and by resorting to values stored in the memory of the torque wrench 200, which were determined and stored in a common calibration to be described in greater detail below. Torque values can be set exactly. In the memory, stored each set the gear 1 10 of the torque multiplier 100. These values are used in a computing unit provided in the torque wrench 200.
- the combination of RFID transponder and RFID reader completely excludes system confusion.
- the calibration of the torque multiplier 100 and torque wrench 200 system is accomplished by first determining the actual gear ratio over the entire torque range of the torque multiplier 100. The method of this calibration will be explained below with reference to FIGS. 2 to 5. 2, a side view of the torque multiplier 00 is shown schematically.
- An input shaft 101 terminating in, for example, a square, on which the electronic torque wrench 200 engages, is connected via the transmission 110 to an output shaft which also terminates with a square 102 terminating in a keyed nut, also referred to as a "power nut" 140. engages.
- the force nut 140 is on the output side adapted to the screw head or the nut of the screw connection.
- an input torque M e is applied to the input shaft and the output of the transmission 110 is an output torque MA in.
- the transmission ratio between input torque M e and output torque M a is determined by the transmission 110. First, this transmission ratio is determined, wherein the input torque M E is detected by the electronic torque wrench 200, and the output torque M A is detected by a sensor 400 disposed on the output shaft is only intended for calibration eb the arrangement of such a sensor 400 is not required.
- the determination of the transmission ratio now takes place in that the output shaft and thus the output square 102 are first brought into a first position which corresponds to an angle of 0 ° (FIG. 3b1)). Then the screw connection is "tightened” by removing the input torque M E is applied and the output torque M A is determined. This results in a functional relationship between the output torque M A and the input torque M E, which is shown schematically in Fig. 4 by a dashed line. In principle, such a series of measurements suffices for determining this functional relationship between the output torque M A and the input torque M E. In this case, the interpolation curve of the function M A (M E ) is then determined and this interpolation curve, in particular an interpolation straight line, as shown in FIGS. 4 and 5, is stored to a certain extent as a characteristic curve.
- a particularly advantageous embodiment of the method according to the invention provides further measurement series.
- the output square 102 that is to say the output shaft is rotated by 90 °, as shown schematically on the right in FIG. 3b2), and again the relationship between the output torque M A and the input torque M E is determined as solid in FIG Line shown.
- the interpolation curve (the straight line shown) is formed over the entire torque range.
- a further increase in accuracy results when determining the Interpolation, the curve, as shown in Fig. 5, for example, in four sub-areas I, II, III, IV of the input torque M E is divided and in each of these sub-areas, an interpolation is performed. Again, this results in a substantially linear course.
- the number of these subdivisions can be further increased, so that in the limit case an exact approximation of the function MA (ME) is possible.
- the sensor 400 is removed and the dependence of the output torque A of the input torque M E is - as mentioned - stored in the memory of the electronic torque wrench 200 and used in later synchronschrauben. In this way, very accurately the tightening torque of screw can be determined.
- the calibration over different angular ranges is required because all known types of transmissions have due to the engagement conditions of the tooth flanks more or less sinusoidal fluctuations in the torque curve and thus the force curve. This means that over the entire torque curve of the torque multiplier deviations from the theoretically calculated torque can be detected. Due to the calibration, these deviations can be taken into account and eliminated.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES11779553.4T ES2690170T3 (es) | 2010-05-06 | 2011-05-03 | Dispositivo para generar un par de apriete con momento de torsión preciso para uniones atornilladas |
BR112012028314A BR112012028314A2 (pt) | 2010-05-06 | 2011-05-03 | aparelho para produzir um torque de aperto preciso para conexões por parafuso |
US13/695,857 US20130047799A1 (en) | 2010-05-06 | 2011-05-03 | Apparatus for producing a precise tightening torque for screw connections |
EP11779553.4A EP2566660B1 (de) | 2010-05-06 | 2011-05-03 | Vorrichtung zur erzeugung eines drehmomentgenauen anzugsmoments für schraubverbindungen |
PL11779553T PL2566660T3 (pl) | 2010-05-06 | 2011-05-03 | Urządzenie do wytwarzania dokładnego dynamometrycznie momentu dokręcającego do połączeń śrubowych |
RU2012152452/02A RU2530182C2 (ru) | 2010-05-06 | 2011-05-03 | Устройство для создания момента затяжки с точным крутящим моментом для резьбовых соединений |
CN201180022829.6A CN103003027B (zh) | 2010-05-06 | 2011-05-03 | 产生用于螺纹连接件的精确紧固扭矩的设备 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010019792.0 | 2010-05-06 | ||
DE102010019792A DE102010019792A1 (de) | 2010-05-06 | 2010-05-06 | Vorrichtung zur Erzeugung eines drehmomentgenauen Anzugsmoments für Schraubverbindungen und Verfahren zur Kalibrierung einer solchen Vorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012019575A1 true WO2012019575A1 (de) | 2012-02-16 |
Family
ID=44802908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2011/001020 WO2012019575A1 (de) | 2010-05-06 | 2011-05-03 | Vorrichtung zur erzeugung eines drehmomentgenauen anzugsmoments für schraubverbindungen |
Country Status (9)
Country | Link |
---|---|
US (1) | US20130047799A1 (de) |
EP (1) | EP2566660B1 (de) |
CN (1) | CN103003027B (de) |
BR (1) | BR112012028314A2 (de) |
DE (1) | DE102010019792A1 (de) |
ES (1) | ES2690170T3 (de) |
PL (1) | PL2566660T3 (de) |
RU (1) | RU2530182C2 (de) |
WO (1) | WO2012019575A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2835222A1 (de) * | 2013-08-08 | 2015-02-11 | Mikawa Co., Ltd. | Drehmomentvervielfacher |
EP3461588A1 (de) * | 2017-09-21 | 2019-04-03 | Aliki Technik GmbH Schraubsysteme Entwicklung- Produktion-Vertrieb | Kalibrierverfahren für einen kraftschrauber |
Families Citing this family (25)
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CN102374923B (zh) * | 2010-08-23 | 2014-06-04 | 浙江吉利汽车有限公司 | 多功能扳手扭力校准仪 |
US8776644B2 (en) * | 2012-01-23 | 2014-07-15 | Stanley Black & Decker, Inc. | Electronic identifier attachment for inventory items |
TW201441594A (zh) * | 2013-04-16 | 2014-11-01 | Huang Kuan Auto Control Equipment Co Ltd | 扭力測試裝置 |
JP6416881B2 (ja) * | 2013-04-24 | 2018-10-31 | ハイトーク ディビジョン ユネックス コーポレイション | ねじ山付きファスナを締め付ける装置 |
US9242356B2 (en) | 2013-05-07 | 2016-01-26 | Snap-On Incorporated | Method of calibrating torque using peak hold measurement on an electronic torque wrench |
US9156148B2 (en) * | 2013-05-10 | 2015-10-13 | Snap-On Incorporated | Preset electronic torque tool |
CN104290069B (zh) * | 2014-09-19 | 2016-03-02 | 燕山大学 | 组合式蛇形力矩扳手 |
CN104192734B (zh) * | 2014-09-19 | 2017-02-22 | 东莞市毅新庆江机械制造有限公司 | 一种塔机用高强螺栓能达到给定预紧力矩的通用操作方法 |
US9664583B2 (en) * | 2014-11-02 | 2017-05-30 | Matatakitoyo Tool Co., Ltd. | Device for calibrating a torque wrench |
RU2598755C1 (ru) * | 2015-04-06 | 2016-09-27 | Закрытое акционерное общество "ИНСТРУМ-РЭНД" | Пневматический гайковёрт с электронным контролем момента |
US10807228B2 (en) * | 2016-02-04 | 2020-10-20 | KNIPEX-Werk C. Gustave Putsch KG | Hand tool |
CN106556540B (zh) * | 2016-10-19 | 2019-09-10 | 奇瑞汽车股份有限公司 | 一种凸焊螺母焊接强度检测工装 |
US11034003B2 (en) | 2016-12-02 | 2021-06-15 | Snap-On Incorporated | Holding tool |
DE102017002440A1 (de) * | 2017-03-13 | 2018-09-13 | Liebherr-Components Biberach Gmbh | Verfahren und Vorrichtung zum Anziehen von Verschraubungen |
CN107505073B (zh) * | 2017-08-10 | 2020-04-17 | 成都楠迪科技有限公司 | 便携式智能扭力测试系统及测试流程 |
CN107782489A (zh) * | 2017-10-16 | 2018-03-09 | 郑州拽亘电子科技有限公司 | 螺栓模拟器及使用该模拟器的扭矩板子检定装置 |
EP3501739A1 (de) * | 2017-12-21 | 2019-06-26 | Aliki Technik GmbH Schraubsysteme Entwicklung- Produktion-Vertrieb | Verfahren zur kalibrierung und steuerung einer schraubvorrichtung und vorrichtung zur durchführung des verfahrens |
IT201800006565A1 (it) * | 2018-06-21 | 2019-12-21 | Enrico Fassio | Dispositivo elettronico per la rilevazione e la visualizzazione della coppia torsiometrica istantanea applicata mediante qualsiasi utensile |
DE102018118853A1 (de) * | 2018-08-02 | 2020-02-06 | Johannes Lübbering Gmbh | Schraubvorrichtung, Antriebsdrehmomenterzeugungsmittel, Verschraubsystem sowie Verfahren zur Drehmomentsteuerung |
CN111843528A (zh) * | 2019-04-30 | 2020-10-30 | 北京航天新风机械设备有限责任公司 | 一种可控制预紧力的装夹装置 |
CN110153935A (zh) * | 2019-05-22 | 2019-08-23 | 哈尔滨万科科技有限公司 | 数字传输电扭力扳手 |
US11919141B2 (en) * | 2019-08-27 | 2024-03-05 | Ingersoll-Rand Industrial U.S., Inc. | Tool with wireless switch |
US11931878B2 (en) | 2019-08-27 | 2024-03-19 | Ingersoll-Rand Industrial U.S., Inc. | Quick change auxiliary handle for power tool |
US20230008290A1 (en) * | 2021-07-08 | 2023-01-12 | Raytheon Technologies Corporation | Torque loading in component stack assembly |
US20230175537A1 (en) * | 2021-12-08 | 2023-06-08 | Mueller International, Llc | Smart operating nut |
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2010
- 2010-05-06 DE DE102010019792A patent/DE102010019792A1/de not_active Withdrawn
-
2011
- 2011-05-03 WO PCT/DE2011/001020 patent/WO2012019575A1/de active Application Filing
- 2011-05-03 BR BR112012028314A patent/BR112012028314A2/pt not_active IP Right Cessation
- 2011-05-03 ES ES11779553.4T patent/ES2690170T3/es active Active
- 2011-05-03 EP EP11779553.4A patent/EP2566660B1/de not_active Not-in-force
- 2011-05-03 RU RU2012152452/02A patent/RU2530182C2/ru not_active IP Right Cessation
- 2011-05-03 CN CN201180022829.6A patent/CN103003027B/zh not_active Expired - Fee Related
- 2011-05-03 PL PL11779553T patent/PL2566660T3/pl unknown
- 2011-05-03 US US13/695,857 patent/US20130047799A1/en not_active Abandoned
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DE3237325A1 (de) * | 1982-10-08 | 1984-04-12 | Mierbach, Hans B., 5300 Bonn | Getriebe- kraftschluessel mit ueberlastsicherung |
US20080115636A1 (en) * | 2006-11-17 | 2008-05-22 | General Electric | Radio frequency identification enabled wrench system and a method of operating the same |
WO2009115889A1 (en) * | 2008-03-18 | 2009-09-24 | Atlas Copco Blm S.R.L. | Electronic torque wrench with replaceable torque sensors |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2835222A1 (de) * | 2013-08-08 | 2015-02-11 | Mikawa Co., Ltd. | Drehmomentvervielfacher |
EP3461588A1 (de) * | 2017-09-21 | 2019-04-03 | Aliki Technik GmbH Schraubsysteme Entwicklung- Produktion-Vertrieb | Kalibrierverfahren für einen kraftschrauber |
Also Published As
Publication number | Publication date |
---|---|
CN103003027B (zh) | 2016-08-03 |
RU2012152452A (ru) | 2014-06-20 |
PL2566660T3 (pl) | 2019-02-28 |
RU2530182C2 (ru) | 2014-10-10 |
EP2566660B1 (de) | 2018-07-11 |
CN103003027A (zh) | 2013-03-27 |
DE102010019792A1 (de) | 2011-11-10 |
US20130047799A1 (en) | 2013-02-28 |
BR112012028314A2 (pt) | 2016-11-01 |
EP2566660A1 (de) | 2013-03-13 |
ES2690170T3 (es) | 2018-11-19 |
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