WO2017211749A1 - Appareil de test pour test de raccord d'assemblage - Google Patents

Appareil de test pour test de raccord d'assemblage Download PDF

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Publication number
WO2017211749A1
WO2017211749A1 PCT/EP2017/063574 EP2017063574W WO2017211749A1 WO 2017211749 A1 WO2017211749 A1 WO 2017211749A1 EP 2017063574 W EP2017063574 W EP 2017063574W WO 2017211749 A1 WO2017211749 A1 WO 2017211749A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
connecting member
stud
tension
rotary connecting
Prior art date
Application number
PCT/EP2017/063574
Other languages
English (en)
Inventor
Haymo Gottwals
Stefan Napierala
Original Assignee
Newfrey Llc
Tucker Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Newfrey Llc, Tucker Gmbh filed Critical Newfrey Llc
Publication of WO2017211749A1 publication Critical patent/WO2017211749A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0075—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by means of external apparatus, e.g. test benches or portable test systems
    • 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
    • B25B29/00—Accessories
    • B25B29/02—Bolt tensioners
    • 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
    • G01L5/0028—Force sensors associated with force applying means
    • G01L5/0033—Force sensors associated with force applying means applying a pulling force
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/12—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to investigating the properties, e.g. the weldability, of materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/20—Stud welding
    • B23K9/201—Stud welding of the extremity of a small piece on a great or large basis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B23P19/06—Screw or nut setting or loosening machines
    • B23P19/067—Bolt tensioners
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0017—Tensile
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0026—Combination of several types of applied forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0296—Welds

Definitions

  • Testing apparatus for testing a joining connection
  • the present invention relates to a testing apparatus for testing a joining connection between a stud and a workpiece from which the stud projects axially.
  • a welding operation also referred to as stud welding.
  • the joining operation may be an adhesive- bonding operation or some other kind of joining operation such as a brazing process, thermoplastic welding process, etc.
  • torque testing tool For the purpose of testing such a weld connection of welding studs, it is known to use a so-called torque testing tool.
  • This tool is essentially a threaded bushing which is screwed onto an external thread of the welding stud and, in the end, is supported on the workpiece surface.
  • This threaded bushing has applied to it a defined torque which, via the stud thread, subjects the weld connection to a combined rotary and tensile force. This mechanical test should establish whether the connection withstands a certain force without failing in the process.
  • the problem here is that the coefficients of friction in the thread engagement mechanism between the threaded bushing and studs can vary widely, for example in dependence upon different stud production batches, etc. It is also possible for the thread- ed bushing in the testing tool to wear over time, and this changes the coefficients of friction. Dirt can also change the coefficient of friction.
  • a nut is screwed onto the stud. Thereafter, the testing apparatus is pushed on laterally such that a claw-like accommodating part engages behind the nut. A screw connection then subjects the nut, and consequently the stud, to an axial force in the withdrawal direction.
  • the disadvantage here is that it is necessary, in order to test a joining connection, for a nut to be screwed onto the stud beforehand and for said nut to be unscrewed again following completion of the testing operation. All of this results in a complicated testing process.
  • DE 32 10 825 A1 discloses a tensile-testing and elongating apparatus which can test the strength of the connection between a component and a stud fitted on the same.
  • a tension nut is screwed onto the stud in order for a testing operation to be carried out.
  • the testing apparatus itself contains two claws which can engage behind the head of the tension nut and are coupled to a hydraulic cylinder, which can subject the tension nut to a predetermined testing force in the axial direction, as a result of which the weld connection can be tested. It is also necessary here for a tension nut to be screwed on beforehand and to be unscrewed again following completion of a testing process.
  • a testing apparatus for testing a joining connection between a stud and a workpiece from which the stud projects axially, having a supporting sleeve, which is designed to be supported axially on the workpiece in a manner concentric to the stud, having a rotary connecting member, which can be displaced axially on, in particular in the supporting sleeve and is designed to establish an axial connection to the stud by way of a rotary movement, and having a tension sleeve, which is coupled to the supporting sleeve and to the rotary connecting member such that rotation of the tension sleeve results in the first instance in an axial connection between the rotary connecting member and the stud and results thereafter in an axial movement of the rotary connecting member, in order for the stud to be subjected to an axial testing force.
  • a testing process can thus be carried out by means of the apparatus without a separate nut having to be screwed onto the stud beforehand. Furthermore, a testing force can be generated irrespective
  • the preferably captive coupling between the tension sleeve and supporting sleeve and also rotary connecting member is such that, in a first stage, an axial connection is established between the rotary connecting member and the stud and, in a following, second stage, the rotary connecting member is subjected to an axial movement, to be precise in particular a purely axial movement without any rotary component, in order for the stud to be subjected, in this way, to a purely axial testing force.
  • the stud is preferably a threaded stud and the rotary connecting member preferably has an internal thread. The threads are preferably fine threads.
  • the supporting sleeve and the rotary connecting member are preferably coupled in terms of rotation and/or can be displaced in relation to one another, preferably to a limited extent, and preferably can be displaced axially in relation to one another.
  • the axial testing force to which the rotary connecting member, and thus the stud, is subjected in the second stage is preferably proportional to a torque to which the tension sleeve is subjected.
  • a testing process is carried out by means of the testing apparatus preferably by the tension sleeve being subjected to a rotary movement. This results preferably in rotation of the supporting sleeve and, consequently, preferably in rotation of the rotary connecting member, and therefore it is possible to establish an axial connection between the rotary connecting member and stud via the rotary movement of the rotary connecting member.
  • the axial connection is established in particular by a thread engagement mechanism between the rotary connecting member and the stud.
  • a frictional force established therebetween is preferably large enough for continued rotation of the tension sleeve no longer to result in continued rotation of the supporting sleeve and/or of the rotary connecting member.
  • the testing apparatus moves into the second stage, in which the rotary connecting member is subjected to a purely axial movement, in order for the stud to be subjected to an axial testing force.
  • the second stage can be initiated for example by activation of a thread engagement mechanism between the supporting sleeve and the tension sleeve, for example by virtue of the supporting sleeve being positioned on the workpiece.
  • the rotary connecting member has a connecting thread, wherein the tension sleeve and the supporting sleeve are coupled to one another via a coupling thread engagement mechanism, wherein the coupling thread engagement mechanism runs counter to the connecting thread.
  • Counter-running thread engagement mechanism is understood to mean that for example the connecting thread is a right-hand thread, whereas the coupling thread engagement mechanism between the tension sleeve and supporting sleeve is a left-hand thread, or vice versa.
  • the coupling thread engagement mechanism is preferably a particularly smooth- running thread, such as a trapezoidal thread or a ball-mounted thread.
  • the friction in the coupling thread engagement mechanism is preferably smaller than a friction between the supporting sleeve and the workpiece or between the rotary connecting member and the stud.
  • the tension sleeve and the supporting sleeve are coupled to one another via a spring arrangement.
  • the spring arrangement may be formed, for example, by a coil spring.
  • the spring arrangement couples the tension sleeve and the supporting sleeve in the direction of rotation preferably such that, when the tension sleeve rotates, the supporting sleeve is carried along in the direction of rotation, wherein the spring arrangement is deformed only to a slight extent, if at all.
  • the spring-arrangement coupling between the tension sleeve and the supporting sleeve is preferably such that the tension sleeve and the supporting sleeve can execute a number of revolutions relative to one another.
  • the supporting sleeve is carried along in the same direction of rotation.
  • the carry-along action is preferably terminated as soon as the supporting sleeve is seated on the workpiece and/or the rotary connecting member is seated on a flange of the stud or the like.
  • the spring coupling between the tension sleeve and supporting sleeve is not sufficient to overcome the frictional engagement established as a result.
  • the coupling thread engagement mechanism between the tension sleeve and the supporting sleeve takes effect such that the tension sleeve is moved away in the axial direction from the workpiece, to be precise on account of the preferred counter-running coupling thread engagement mechanism.
  • tension sleeve and the supporting sleeve are coupled to one another via a coupling thread engagement mechanism and if the spring arrangement is designed such that the supporting sleeve is prestressed against a stop on the tension sleeve.
  • the coupling thread engagement mechanism is preferably very smooth-running, and therefore the spring arrangement generally ensures that the supporting sleeve, in the unloaded state, moves against the stop, even if this involves a number of relative movements between the supporting sleeve and tension sleeve. Furthermore, it is advantageous overall if the rotary connecting member and the tension sleeve are coupled axially via an axial bearing. Consequently, rather than rotary forces of the tension sleeve being transmitted to the rotary connecting member, they are absorbed by the axial bearing.
  • the supporting sleeve and the rotary connecting member are preferably coupled in terms of rotation, but are mounted such that they can be displaced in relation to one another preferably in the longitudinal direction, in order to allow relative movement between the rotary connecting member and supporting sleeve in particular in the second stage of the testing apparatus.
  • Such a rotary coupling along with, at the same time, a degree of freedom in the axial direction is achieved preferably in that the supporting sleeve has at least one longitudinal slot, in which engages a rotary coupling pin which projects radially from the rotary connecting member.
  • the tension sleeve has an axial bore, through which engages a shank portion of the rotary connecting member, wherein a head portion of the rotary connecting member is supported axially on a coupling shoulder of the tension sleeve, preferably via an axial bearing, as mentioned above.
  • Movement of the tension sleeve in the direction away from the workpiece is thus converted directly, and without any transmission of frictional forces therebetween, into an axial movement of the rotary connecting member in order for it to be possible in this way, in the second stage of the testing apparatus, for the rotary connecting member, and consequently the stud, to be subjected to an axial tensile force.
  • the tension sleeve has a tension-sleeve base and a closure cover, which closes an axial opening in the tension-sleeve base.
  • the closure cover here can secure in particular a head portion of the rotary connecting member axially in relation to the tension sleeve.
  • the shank portion can be introduced preferably into an axial bore of the tension sleeve until the head portion of the rotary connecting member is supported axially on the coupling shoulder of the tension sleeve, for example via the axial bearing. It is then possible for the closure cover to be fitted on the tension-sleeve base, in order to close the axial opening and consequently to secure the head portion of the rotary connecting member axially on the tension sleeve.
  • the closure cover here may be designed in the form of an adapter such that a first closure cover is designed for example for accommodating a square socket with dimensions of 1 /2" and another closure cover is designed, for example, with a hexagon socket, etc.
  • FIG. 1 shows a schematic longitudinal-section view through one embodiment of a testing apparatus according to the invention.
  • FIG. 2 shows a schematic sectional view taken along line 11-11 from Fig. 1
  • a testing apparatus 10 for testing a joining connection between a stud and a work- piece is illustrated in schematic form, and designated in general terms by 10, in Figures 1 and 2.
  • the testing apparatus 10 serves, in particular, to test a joining connection between a stud 12 and a workpiece 14.
  • the stud 12 here is joined onto an upper side 16 of the workpiece 14, to be precise in particular by a joining connection, such as a weld connection 17.
  • a corresponding weld bead 18 is shown in schematic form in Fig. 1.
  • a longitudinal axis along which the stud 12 extends, and which is oriented perpendicularly to the upper side 16 of the workpiece 14, is shown at 19.
  • An external thread 20 of the stud 12 is indicated schematically at 20.
  • the testing apparatus 10 has a supporting sleeve 24.
  • the supporting sleeve 24 may be arranged in a manner concentric to the stud 12 and has at its front end, which is directed towards the workpiece 14, an annular surface 26, which can be positioned on the workpiece 14 concentrically around the weld connection 17 in order to be supported axially on said workpiece.
  • the supporting sleeve 24 also contains a supporting-sleeve thread 28, which is formed in an outer region at the opposite axial end of the supporting sleeve 24.
  • the supporting-sleeve thread 28 is designed, for example, in the form of a trapezoidal thread and is realized, in particular, in the form of a smooth-running thread.
  • 30 denotes an axial end of the supporting sleeve 24 which is located opposite the annular surface 26.
  • the testing apparatus 10 also contains a tension sleeve 34.
  • the tension sleeve 34 has a tension-sleeve base 36, from which extends a sleeve portion 38 which, on its inner circumference, has a tension-sleeve thread 40 which engages with the supporting-sleeve thread 28 in order for the tension sleeve 34 and the supporting sleeve 24 to be coupled to one another in this way via a coupling thread engagement mechanism 28, 40.
  • Fig. 1 illustrates that the end 30 of the supporting sleeve 24 strikes in the axial direction against an axial stop 42 of the tension sleeve 34.
  • the axial stop 42 is, as will also be explained hereinbelow, designed in the form of a return-rotation stop and projects preferably in relation to an inner side of the sleeve portion 39.
  • the tension sleeve 34 and the supporting sleeve 24 are coupled to one another via a coil spring 44.
  • the coil spring 44 is designed to exert a rotary force between the supporting sleeve 24 and the tension sleeve 34 such that the supporting sleeve 24 can be screwed into the sleeve portion 38 of the tension sleeve 34 to the extent where the sleeve end 30 strikes against the axial stop 42, which therefore forms a return-rotation stop 42.
  • the tension-sleeve base 36 of the tension sleeve 34 has an axial bore 46, which merges into a coupling shoulder 48 on the axial side facing away from the supporting sleeve 24. Starting from this coupling-shoulder portion of relatively large axial diameter, the axial bore 46 then merges, via a cover shoulder 50, into an axial opening 51 in the tension-sleeve base 36. The axial opening 51 is closed by a closure cover 52, which rests on the cover shoulder 50.
  • a tool-accommodating portion 54 is formed at the axially free end of the closure cover 52 and may be designed, for example, in the form of a square-socket portion into which a tool 56 can be introduced, in order for rotary movements of the tool 56 to be transmitted to the closure cover 52, and consequently to the tension sleeve 34, and thus for a torque to be transmitted to the tension sleeve 34, as is shown schematically at T in Fig. 1 . The relative rotation is shown at .
  • a testing operation takes place by the tension sleeve 34 being subjected to a rotary movement a in the right-hand direction, in which case the tension sleeve 34 is subjected to a torque T in the same direction.
  • the testing apparatus 10 also contains a rotary connecting member 64, which may be designed, for example, in the form of a rotary connecting sleeve 64.
  • the rotary con- necting member 64 has a screw portion 66, which is formed by a shank portion 68 and a head portion 70.
  • the screw portion 66 of the rotary connecting member 64 is introduced into the tension sleeve 34 via the axial opening 51 such that the shank portion 68 passes through the axial bore 46 and such that the head portion 70 is supported axially on the coupling shoulder 48, to be precise in particular via an axial bearing 72.
  • the head portion 70 is secured in the axial direction between the axial bearing 72 and the closure cover 52.
  • the shank portion 68 of the screw portion 66 of the rotary connecting member 64 extends through the axial bore 46 into the interior of the sleeve portion 38 of the tension sleeve 34 and is coupled there to a bushing portion 74 of the rotary connecting member 64, to be precise via a fixed screw connection or some other fixed, but preferably releasa- ble, connection.
  • the external diameter of the bushing portion 74 is preferably larger than the diameter of the axial bore 46, and therefore the rotary connecting member 64 is coupled in captive fashion to the tension sleeve 34.
  • the bushing portion 74 has an internal thread 76, which is designed to be screwed onto the external thread 20 of the bolt 12.
  • the internal thread 76 is preferably likewise a fine thread.
  • the testing apparatus 10 functions as follows: The testing apparatus 10 is guided in the axial direction from above in the direction of a stud 12 until a front end of the bush- ing portion 74 butts against the upper side of the stud 12.
  • a rotary movement a is then introduced into the tension sleeve 34.
  • the coil spring 44 causes this rotary movement to be converted into a rotary movement of the supporting sleeve 24, which, in turn, carries along the rotary connecting member 64 in the direction of rotation, and therefore the rotary connecting member 64, to be precise in particular the bushing portion 74 thereof, is screwed onto the stud 12.
  • the coil spring 44 here is deformed preferably only to a slight extent, if at all.
  • the coupling thread engagement mechanism 28, 40 is designed, in particular, to run counter to the thread engagement mechanism 20, 76 and is designed, in particular, in the form of a left-hand thread.
  • the supporting sleeve 24 is fixed by friction in the direction of rotation in relation to the workpiece 14 and in relation to the stud 12
  • continued rotation of the tension sleeve 34 thus results in rotation in relation to the supporting sleeve 24 such that the tension sleeve 34 is moved away in the axial direction from the workpiece 14.
  • the rotary connecting member 64, and thus the stud 12 is subjected to an axial withdrawal force here via the coupling shoulder 48 and the axial bearing 72.
  • This movement is a purely axial movement, such that a torque T to which the tension sleeve 34 is subjected is proportional to a withdrawal force F to which the rotary connecting member 64, and thus the stud 12, is subjected in the axial direction.
  • the angle of rotation a is proportional to the relative axial offset between the supporting sleeve 24 and rotary connecting member 64, as is indicated schematically at s in Fig. 1. If a torque defined in this way is applied and the weld connection 17 is not destroyed, the weld connection 17 is deemed to be sound.
  • the testing apparatus can then be removed by the tension sleeve 34 being rotated back in the opposite direction so that, first of all, the supporting sleeve 24 and tension sleeve 35 rotate relative to one another again until the sleeve end 30 strikes against the axial stop 42. Continued rotation then results in the rotary connecting member 64 being unscrewed from the stud until such time as the testing apparatus 10 can be removed from the stud.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

L'invention concerne un appareil de test (10) pour tester un raccord d'assemblage (17) entre un goujon (12) et une pièce à usiner (14) à partir de laquelle le goujon (12) fait saillie axialement, comprenant un manchon de support (24), qui est conçu pour être porté axialement sur la pièce à usiner (14) de manière concentrique au goujon (12) ; un élément de raccord rotatif (64), qui peut être déplacé axialement sur le manchon de support (24) et est conçu pour établir un raccord axial avec le goujon (12) au moyen d'un mouvement de rotation (a) ; et un manchon de tension (34), qui est couplé au manchon de support (24) et à l'élément de raccord rotatif (64) de telle sorte que la rotation du manchon de tension (34) résulte d'abord en une liaison axiale entre l'élément de raccord rotatif (64) et le goujon (12) et résulte ensuite en un mouvement axial ou des mouvements axiaux de l'élément de raccord rotatif (64), afin que le goujon (12) soit soumis à une force de test axiale (F).
PCT/EP2017/063574 2016-06-07 2017-06-02 Appareil de test pour test de raccord d'assemblage WO2017211749A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202016103028.5 2016-06-07
DE202016103028.5U DE202016103028U1 (de) 2016-06-07 2016-06-07 Prüfvorrichtung zum Prüfen einer Fügeverbindung

Publications (1)

Publication Number Publication Date
WO2017211749A1 true WO2017211749A1 (fr) 2017-12-14

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DE (1) DE202016103028U1 (fr)
WO (1) WO2017211749A1 (fr)

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CN111413213A (zh) * 2020-03-31 2020-07-14 中国第一汽车股份有限公司 一种圆形径向对接焊缝破坏扭矩测试方法
CN112268669A (zh) * 2020-10-13 2021-01-26 安徽江淮汽车集团股份有限公司 一种弹簧测试工装以及弹簧测试设备
CN112605642A (zh) * 2019-12-19 2021-04-06 阿特拉斯柯普科工业技术(德国)有限公司 识别到故障时探测连接件尤其是热融自攻丝的方法
JP2021087966A (ja) * 2019-12-03 2021-06-10 株式会社タイルメント 溶接状態検査ガン
CN114102004A (zh) * 2020-09-01 2022-03-01 上海研途船舶海事技术有限公司 一种控制铝合金船型材焊接后翘起的弹性工装
CN117309212A (zh) * 2023-11-24 2023-12-29 宝鸡钛戈金属科技股份有限公司 一种焊接件的拘束应力测试装置
EP3898106B1 (fr) * 2018-12-21 2024-05-22 Caterpillar Energy Solutions GmbH Dispositif de mise en tension et de serrage d'une vis

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CS233115B1 (cs) * 1983-06-29 1985-02-14 Jan Mlynarik Zařízení pro utahování a předepínání nebo povolování šroubů a matic
DE19837410A1 (de) 1997-09-09 1999-03-11 Bolzenschweistechnik Heinz Soy Mechanische Prüfvorrichtung zum Feststellen der Qualität einer Schweißung eines auf Blechmaterial geschweißten Bolzens
EP2871027A1 (fr) * 2013-11-11 2015-05-13 HILTI Aktiengesellschaft Outil de serrage de boulon

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DE3210825A1 (de) 1981-08-05 1983-02-24 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen Zugpruef- und reckvorrichtung fuer einen von einer flaeche vorspringenden bolzen
CS233115B1 (cs) * 1983-06-29 1985-02-14 Jan Mlynarik Zařízení pro utahování a předepínání nebo povolování šroubů a matic
DE19837410A1 (de) 1997-09-09 1999-03-11 Bolzenschweistechnik Heinz Soy Mechanische Prüfvorrichtung zum Feststellen der Qualität einer Schweißung eines auf Blechmaterial geschweißten Bolzens
EP2871027A1 (fr) * 2013-11-11 2015-05-13 HILTI Aktiengesellschaft Outil de serrage de boulon

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JP2019107674A (ja) * 2017-12-19 2019-07-04 株式会社タイルメント スタッド溶接方法及びスタッド溶接装置並びにスタッド溶接物の検査方法
CN108896383A (zh) * 2018-07-17 2018-11-27 江西艾克实业有限公司 一种用于多种接头的拉拔测试机构
EP3898106B1 (fr) * 2018-12-21 2024-05-22 Caterpillar Energy Solutions GmbH Dispositif de mise en tension et de serrage d'une vis
JP2021087966A (ja) * 2019-12-03 2021-06-10 株式会社タイルメント 溶接状態検査ガン
CN112605642A (zh) * 2019-12-19 2021-04-06 阿特拉斯柯普科工业技术(德国)有限公司 识别到故障时探测连接件尤其是热融自攻丝的方法
CN111413213A (zh) * 2020-03-31 2020-07-14 中国第一汽车股份有限公司 一种圆形径向对接焊缝破坏扭矩测试方法
CN111413213B (zh) * 2020-03-31 2022-09-06 中国第一汽车股份有限公司 一种圆形径向对接焊缝破坏扭矩测试方法
CN114102004A (zh) * 2020-09-01 2022-03-01 上海研途船舶海事技术有限公司 一种控制铝合金船型材焊接后翘起的弹性工装
CN112268669A (zh) * 2020-10-13 2021-01-26 安徽江淮汽车集团股份有限公司 一种弹簧测试工装以及弹簧测试设备
CN112268669B (zh) * 2020-10-13 2021-08-27 安徽江淮汽车集团股份有限公司 一种弹簧测试工装以及弹簧测试设备
CN117309212A (zh) * 2023-11-24 2023-12-29 宝鸡钛戈金属科技股份有限公司 一种焊接件的拘束应力测试装置
CN117309212B (zh) * 2023-11-24 2024-01-30 宝鸡钛戈金属科技股份有限公司 一种焊接件的拘束应力测试装置

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