CN107907403A - For measuring the fixing device and its measuring method of electric resistance welding joint bending stiffness - Google Patents
For measuring the fixing device and its measuring method of electric resistance welding joint bending stiffness Download PDFInfo
- Publication number
- CN107907403A CN107907403A CN201711248136.4A CN201711248136A CN107907403A CN 107907403 A CN107907403 A CN 107907403A CN 201711248136 A CN201711248136 A CN 201711248136A CN 107907403 A CN107907403 A CN 107907403A
- Authority
- CN
- China
- Prior art keywords
- fixing device
- test piece
- resistance welding
- bending stiffness
- electric resistance
- 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.)
- Pending
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Classifications
-
- 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
- G01N3/02—Details
-
- 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
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing 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
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
-
- 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
-
- 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
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of fixing device and its measuring method for being used to measure electric resistance welding joint bending stiffness, device is square tubular structure, and the measuring device both sides are designed for opening.The measuring method of a shearing strength is resistance welded using the device, is comprised the following steps：(1) take resistance welding to complete test piece to be tested, fixing device is sleeved on commissure, enables devices to that weld seam is completely covered；(2) start pull test, measure the shearing strength of welding test piece, and ensure that the test piece of above and below weld seam is coaxial during experiment.The device of the invention is simple in structure, it is easy to use, and can multiple Reusability, this device is placed on be ready for shearing resistance test welding test piece weld seam position, since device gap thickness is slightly larger than throat depth, weld seam is limited during shearing test due to torsional deformation caused by moment of torsion；Measuring method using the present invention, process is simple, easy to operate, ensures the coaxial of test piece while does not produce superfluous friction power, measurement result is more accurate.
Description
Technical field：
The invention belongs to weld strength detection technique field, and in particular to one kind is used to measure electric resistance welding joint bending stiffness
Fixing device and its measuring method.
Background technology：
In shearing test, test piece is twisted, bends, is broken some fragile materials in joint, test piece joint edge
Edge twists off in advance, with regard to being broken before the anti-shear ability that welding point can bear is not tested also, the result is that test
Shearing resistance is much smaller than actual value, it is impossible to truly reflects the shearing force that connector can bear.For this reason, designing one kind can accurately survey
Measure resistance weld seam shear strength test device.The present invention, simple economy is convenient and practical, not only can guarantee that the coaxial of test piece, but also do not produce
Raw unnecessary frictional force, accurately measures welding point shearing force.
The content of the invention：
The purpose of the present invention is overcome above-mentioned the shortcomings of the prior art, there is provided one kind resists for measuring electric resistance welding connector
Cut the fixing device and its measuring method of intensity.
To achieve the above object, the present invention uses following technical scheme：
A kind of to be used to measuring the fixing device of electric resistance welding joint bending stiffness, the device is square tubular structure, institute
Designed for opening the measuring device both sides stated.
The fixing device both sides cross-sectional length is n, width m；The fixing device is used for fixed welding examination
The thickness of piece is B, and the tip width of the welding test piece is D, the D+0.5mm≤n≤D+1mm, B+0.5mm≤m≤B
+0.8mm。
The measuring method of a shearing strength is resistance welded using the fixing device of electric resistance welding joint bending stiffness, including
Following steps：
(1) take resistance welding to complete test piece to be tested, fixing device is sleeved on commissure, enables devices to be completely covered
Weld seam；
(2) start pull test, measure the shearing strength of welding test piece, and ensure that above and below weld seam tries during experiment
Piece is coaxial.
In the step (1), fixing device is placed on commissure, ensures that fixing device does not produce pressure to welding test piece,
And fixing device does not produce slip, the processing mode that fixing device is slided is：By fixing device by tape-stripping in test piece table
Face.
Beneficial effects of the present invention：
(1) fixture structure for being used to measure electric resistance welding joint bending stiffness of the invention is simple, easy to use, and can
With multiple Reusability, this device is placed on to the welding test piece weld seam position for being ready for shearing resistance test, since device gap is thick
Degree is slightly larger than throat depth, therefore weld seam is limited during shearing test due to torsional deformation caused by moment of torsion；
(2) device using the present invention is resistance welded the measuring method of a shearing strength, and process is simple, operation side
Just, it not only can guarantee that the coaxial of test piece, but also do not produced unnecessary frictional force, and accurately measured welding point shearing strength.
Brief description of the drawings：
Fig. 1 is the fixture structure schematic diagram for measuring electric resistance welding joint bending stiffness；
Fig. 2 is the welding test block structure schematic diagram of electric resistance welding joint bending stiffness to be measured, wherein, Fig. 2 (a) is main view
Figure, Fig. 2 (b) is side view；
Fig. 3 be for the use state diagram for the fixing device for measuring electric resistance welding joint bending stiffness, wherein, Fig. 3 (a)
For front view, Fig. 3 (b) is side view.
Embodiment：
With reference to embodiment, the present invention is described in further detail.
A kind of fixing device for being used to measure electric resistance welding joint bending stiffness, its structure diagram is as shown in Figure 1, described
Device is square tubular structure, and the measuring device both sides are designed for opening；
The fixing device both sides cross-sectional length is n, width m；The fixing device is used for fixed welding examination
The structure diagram of piece is as shown in Fig. 2, shown in front view such as Fig. 2 (a), and shown in side view such as Fig. 2 (b), welding thickness of test piece is
B, tip width D, the D+0.5mm≤n≤D+1mm, B+0.5mm≤m≤B+0.8mm.
The measuring method of a shearing strength is resistance welded using the fixing device of electric resistance welding joint bending stiffness, including
Following steps：
(1) take resistance welding to complete test piece to be tested, fixing device is sleeved on commissure, enables devices to be completely covered
Weld seam, the use state diagram of the fixing device is as shown in figure 3, shown in front view such as Fig. 3 (a), side view such as Fig. 3 (b) institutes
Show, ensure that fixing device does not produce welding test piece pressure, and fixing device does not produce slip, the processing side that fixing device is slided
Formula is：By fixing device by tape-stripping in strip；
(2) start pull test, measure the shearing strength of welding test piece, and ensure that above and below weld seam tries during experiment
Piece is coaxial.
Claims (4)
1. a kind of fixing device for being used to measure electric resistance welding joint bending stiffness, it is characterised in that the device is square tube
Shape structure, the measuring device both sides are designed for opening.
2. the fixing device according to claim 1 for being used to measure electric resistance welding joint bending stiffness, it is characterised in that described
Fixing device both sides cross-sectional length be n, width m；The thickness that the fixing device is used for fixed welding test piece is B,
The tip width of the welding test piece is D, the D+0.5mm≤n≤D+1mm, B+0.5mm≤m≤B+0.8mm.
3. a shearing strength is resistance welded using the fixing device of the electric resistance welding joint bending stiffness described in claim 1
Measuring method, it is characterised in that comprise the following steps：
(1) take resistance welding to complete test piece to be tested, fixing device is sleeved on commissure, enables devices to that weldering is completely covered
Seam；
(2) start pull test, measure the shearing strength of welding test piece, and ensure that the test piece of above and below weld seam is same during experiment
Axis.
4. the measuring method of electric resistance welding joint bending stiffness according to claim 3, it is characterised in that the step
(1) in, fixing device is placed on commissure, ensures that fixing device does not produce pressure to welding test piece, and fixing device does not produce cunning
Dynamic, the processing mode that fixing device is slided is：By fixing device by tape-stripping in strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711248136.4A CN107907403A (en) | 2017-12-01 | 2017-12-01 | For measuring the fixing device and its measuring method of electric resistance welding joint bending stiffness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711248136.4A CN107907403A (en) | 2017-12-01 | 2017-12-01 | For measuring the fixing device and its measuring method of electric resistance welding joint bending stiffness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107907403A true CN107907403A (en) | 2018-04-13 |
Family
ID=61848461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711248136.4A Pending CN107907403A (en) | 2017-12-01 | 2017-12-01 | For measuring the fixing device and its measuring method of electric resistance welding joint bending stiffness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107907403A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732014A (en) * | 2018-05-18 | 2018-11-02 | 中铁九桥工程有限公司 | A kind of tetrafluoro plate pastes the detection device and detection method of shearing strength |
| CN111366432A (en) * | 2020-04-10 | 2020-07-03 | 中车青岛四方机车车辆股份有限公司 | Test piece, intermediate piece, pre-welding test piece and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2779379Y (en) * | 2004-12-24 | 2006-05-10 | 西北工业大学 | Test fixture for shear intensity of joint |
| CN102706715A (en) * | 2012-06-26 | 2012-10-03 | 北京新风机械厂 | T-type high energy beam welding joint shear strength test piece and manufacturing method thereof |
| CN102735557A (en) * | 2012-05-22 | 2012-10-17 | 奇瑞汽车股份有限公司 | Fatigue test device for vehicle body thin plate, and test method thereof |
| CN103592181A (en) * | 2013-11-29 | 2014-02-19 | 哈尔滨工业大学 | Fixture and method for measuring maximum tensile and shearing force of lap joint of friction stir welding |
| CN203858156U (en) * | 2014-05-26 | 2014-10-01 | 和平安 | Clamp device for measuring shear strength of lapped joint |
| CN104990810A (en) * | 2015-07-03 | 2015-10-21 | 河南机电高等专科学校 | Connector shear strength testing device |
-
2017
- 2017-12-01 CN CN201711248136.4A patent/CN107907403A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2779379Y (en) * | 2004-12-24 | 2006-05-10 | 西北工业大学 | Test fixture for shear intensity of joint |
| CN102735557A (en) * | 2012-05-22 | 2012-10-17 | 奇瑞汽车股份有限公司 | Fatigue test device for vehicle body thin plate, and test method thereof |
| CN102706715A (en) * | 2012-06-26 | 2012-10-03 | 北京新风机械厂 | T-type high energy beam welding joint shear strength test piece and manufacturing method thereof |
| CN103592181A (en) * | 2013-11-29 | 2014-02-19 | 哈尔滨工业大学 | Fixture and method for measuring maximum tensile and shearing force of lap joint of friction stir welding |
| CN203858156U (en) * | 2014-05-26 | 2014-10-01 | 和平安 | Clamp device for measuring shear strength of lapped joint |
| CN104990810A (en) * | 2015-07-03 | 2015-10-21 | 河南机电高等专科学校 | Connector shear strength testing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732014A (en) * | 2018-05-18 | 2018-11-02 | 中铁九桥工程有限公司 | A kind of tetrafluoro plate pastes the detection device and detection method of shearing strength |
| CN108732014B (en) * | 2018-05-18 | 2024-05-14 | 中铁九桥工程有限公司 | Detection device and detection method for shear strength of pasting of tetrafluoro plate |
| CN111366432A (en) * | 2020-04-10 | 2020-07-03 | 中车青岛四方机车车辆股份有限公司 | Test piece, intermediate piece, pre-welding test piece and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180413 |