CN107607401A - Welding pulling-out force test device - Google Patents
Welding pulling-out force test device Download PDFInfo
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- CN107607401A CN107607401A CN201710930258.5A CN201710930258A CN107607401A CN 107607401 A CN107607401 A CN 107607401A CN 201710930258 A CN201710930258 A CN 201710930258A CN 107607401 A CN107607401 A CN 107607401A
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- connector
- test specimen
- out force
- test device
- welding pulling
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- 238000012360 testing method Methods 0.000 title claims abstract description 133
- 238000003466 welding Methods 0.000 title claims abstract description 47
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
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Abstract
The invention discloses a kind of welding pulling-out force test device, the welding pulling-out force test device includes：Stand；Relatively moveable two connectors in the vertical direction, each connector is rotationally connected with the stand, and each connector is adapted to rotationally be connected with test specimen, so that during the distance increase of two connectors in the vertical direction, the test specimen is set to be always positioned at center.According to the welding pulling-out force test device of the present invention, by the way that test specimen is fixed on connector, when the position of test specimen is not at the center pulled due to tearing, being rotatably connected between connector and stand and connector and test specimen can be utilized, make test specimen all the time in the center pulled, side force is eliminated, so as to ensure measurement accuracy.
Description
Technical field
The present invention relates to test equipment field, in particular to a kind of welding pulling-out force test device.
Background technology
When being assembled into battery modules or battery bag using method for soft package lithium ion power, between battery pole ear and lug weld tabs
Weld strength usually requires to carry out pulling-out force inspection.Existing method is tested mainly by hardness fixation above and below tensile testing machine,
The fixed mode precision of this hardness is not high, and result value can be caused bigger than normal, influence the accuracy of result.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art.Therefore, the present invention proposes that one kind can
To eliminate side force, so as to ensure the welding pulling-out force test device of measurement accuracy.
Included according to the welding pulling-out force test device of the present invention：Stand；It is relatively moveable two in the vertical direction
Connector, each connector are rotationally connected with the stand, and each connector is adapted to and is tested
Part is rotationally connected, so that during the distance increase of two connectors in the vertical direction, makes the test specimen all the time
Positioned at center.
According to the welding pulling-out force test device of the present invention, by connector relative to gantry rotation and test specimen with
Connector is relatively rotated, and the rotation of side force connected piece and test specimen is offset, so that tested after being torn
Tensile force suffered by part is also the power of above-below direction, so that measurement structure is not influenceed by side force, so as to ensure that
Measurement accuracy.
According to the welding pulling-out force test device of the present invention, the connector includes support and sliding block, and the support can turn
Dynamic ground is connected with the stand, and in the lateral direction relatively slidably, the sliding block is fitted for the lower end of the sliding block and the support
In being rotationally connected with test specimen, when producing side force, support can be made in the presence of side force relative to stand
Freely rotate, sliding block is relative with support slidably, so that test specimen is always positioned at center, so that test specimen
Impact direction it is consistent with the direction being stretched, counteract side force, increased measurement accuracy.
According to the welding pulling-out force test device of the present invention, the sliding block is slide rail, because the slip between slide rail belongs to rolling
Dynamic friction, frictional force is small, so that influence of the sliding block to measurement result is smaller, and because slide rail is rigidly larger, and can make
First sliding block and the second slider contact surface are larger, and the positioning precision of sliding block is higher, and load capacity is big.
According to the welding pulling-out force test device of the present invention, in addition to rotating shaft, the sliding block is suitable to pass through with test specimen
The rotating shaft is rotationally connected, and when test specimen is by side force, test specimen can together rotate with connector, from
And make the motion of connector in the horizontal direction will not on test specimen applying power, so as to ensure that test specimen only upper and lower
Draw direction on stress, so as to improve measuring accuracy.
According to the welding pulling-out force test device of the present invention, the sliding block has the groove opened wide towards test specimen, institute
Stating groove has two side walls being oppositely arranged, and the both ends of the rotating shaft are separately fixed in two side walls, test specimen
At least a portion stretch into the groove and be rotationally connected with the rotating shaft, by the setting of rotating shaft, so that being tested
Part can be relatively rotated with opposite joints, keep the Impact direction of test specimen point-blank, effectively to be supported with draw direction
Disappeared side force.
According to the welding pulling-out force test device of the present invention, in addition to two bearings, described in two bearings and two
Connector is corresponded, and the connector is rotationally connected with the stand by the corresponding bearing, two bearings and
Support on connector is connected, so that connector can freely rotate relative to support, to offset side force, and bearing
Design, frictional force is small, test result is influenceed smaller.
According to the welding pulling-out force test device of the present invention, the stand, the connector are bilateral symmetry, when
When test specimen is connected on connector and test specimen do not stretched, connected piece, bearing, rotating shaft are all located at symmetry axis
On, when test specimen starts to be stretched, the Impact direction of test specimen is identical with the discovery that is stretched, and side force occurs
Afterwards, make test specimen offset side force during, due to bearing, rotating shaft all on symmetry axis so that the stress of test specimen
Direction, so that test result is not influenceed by side force, makes also on symmetry axis, and the direction of tensile force is vertical direction
Test result is more accurate.
According to the welding pulling-out force test device of the present invention, it is characterised in that the stand includes Part I and second
Part, the Part I are fixed, and the Part II is movably arranged on the Part I along the vertical direction, and described
A part be rotationally connected with one in two connectors, the Part II with it is another in two connectors
One is rotationally connected.
According to the welding pulling-out force test device of the present invention, the stand also includes rail structure, and the Part II leads to
The rail structure is crossed to be movably arranged at along the vertical direction on the Part I.
According to the welding pulling-out force test device of the present invention, the Part I and the Part II are configured to U-shaped
Framework, the U-shaped frame body include crossbeam and are connected to two vertical beams at crossbeam both ends, the crossbeam and the corresponding company
Fitting is rotationally connected, and when needing to stretch test specimen, Part II moves up with respect to Part I, upper company
Fitting moves up relative to lower connector, so as to realize the stretching to test specimen.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the welding pulling-out force test device structural representation according to the present invention；
Fig. 2 is the welding pulling-out force test device operating diagram according to the present invention.
Reference：
Welding pulling-out force test device 100；
Stand 1；Part I 11；Part II 12；Crossbeam 101；Vertical beam 102；
Bearing 2；
Connector 3；Upper connector 31；Lower connector 32；Support 301；Rack body 3011；Sliding block connecting portion 3012；It is sliding
Block 302；Rotating shaft 3021；
Test specimen 10.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
Welding pulling-out force test device 100 referring to Fig. 1 and Fig. 2 descriptions according to the present invention, implements according to the present invention
The welding pulling-out force test device 100 of example is strong so as to detect the welding of test specimen 10 by being stretched to test specimen 10
Degree, in some specific embodiments, test specimen 10 can be the part that battery pole ear welds together with lug weld tabs, weld
Connect and pull force test device 100 by the stretching by test specimen 10 in the vertical direction, to detect the weldering of test specimen 10
Connect intensity.
As depicted in figs. 1 and 2, welding pulling-out force test device 100 according to embodiments of the present invention includes stand 1 and two
Connector 3.
As depicted in figs. 1 and 2, in welding pulling-out force test device 100, being provided with can relatively move in the vertical direction
Two connectors 3, respectively upper connector 31 and lower connector 32, each connector 3 be rotationally connected with stand 1,
And each connector 3 is adapted to rotationally be connected with test specimen 10, so that the distance of two connectors 3 in the vertical direction
During increase, test specimen 10 is set to be always positioned at center, the distance of two connectors 3 in the vertical direction increases and to tested
During test specimen 10 is stretched, when test specimen 10 is only by the power of above-below direction, position centered on location.
The welding pulling-out force of test specimen 10 is tested using welding pulling-out force test device 100 according to embodiments of the present invention
When, the upper end of test specimen 10 is connected on upper connector 31, the lower end of connected piece 10 is connected on lower connector 32, is made
The welding position of connected piece 10 is located between upper connector 31 and lower connector 32, and upper connector 31 is with lower connector 32 upper
The upward distance increase in lower section, and then stretching along the vertical direction is carried out to connected piece 10.Because test specimen 10 is stretching
During tear position not with tensile force point-blank, so as to produce side force, due to the effect of side force, connector
3 rotate and connector 3 relatively rotates with test specimen 10 relative to stand 1, make the part not being torn of connected piece 3 all the time
, so as to counteract side force, made measurement by the position of the pulling force of above-below direction positioned at center, that is, test specimen 10
As a result do not influenceed by side force, improve measurement accuracy.
Some for describing welding pulling-out force test device 100 according to embodiments of the present invention referring to Fig. 1 and Fig. 2 are specific
Embodiment.
Connector 3 includes support 301 and sliding block 302, and support 301 is rotationally connected with stand 1, specific real at some
Apply in example, as depicted in figs. 1 and 2, support 301 can include rack body 3011 and sliding block connecting portion 3012, rack body
3011 are fixedly linked with sliding block connecting portion 3012, i.e., rack body 3011 not can be movable relatively with sliding block connecting portion 3012, optional
Ground, rack body 3011 and sliding block connecting portion 3012 can be formed in one part, rack body 3011 and sliding block connecting portion 3012
Can also be by being weldingly connected, sliding block connecting portion 3012 is slidably connected with sliding block 302.
As shown in Fig. 2 when welding pulling-out force test device 100 works, in upper connector 31, sliding block 302 be suitable to
Test specimen 10 is rotationally connected, and in lower connector 32, sliding block 302 is also suitable for rotationally being connected with test specimen 10.
In some specific embodiments, support 301 can freely rotate relative to stand 1, and sliding block 302 can be relative to sliding block
Connecting portion 3012 relatively slidably, when producing side force, can make support 301 relative to stand in the presence of side force
1 freely rotates, sliding block 302 relative to sliding block connecting portion 3012 relatively slidably so that during test specimen 10 is always positioned at
Heart position, so that the Impact direction of test specimen 10 is consistent with the direction being stretched, side force is counteracted, improve measurement essence
Degree.
Alternatively, sliding block can be slide rail, because the slip between slide rail belongs to rolling friction, frictional force is small, so that sliding
Block is smaller to the influence to measurement result, and because slide rail is rigidly larger, and sliding block connecting portion 3012 and sliding block 302 can be made
Contact surface is larger, makes that the positioning precision of sliding block 302 is higher, and load capacity is big.
As depicted in figs. 1 and 2, welding pulling-out force test device 100 according to embodiments of the present invention, rotating shaft can also be included
3021, rotating shaft 3021 is corresponded with sliding block 302, and sliding block 302 be able to can be turned with test specimen 10 by corresponding rotating shaft 3021
It is connected dynamicly, so as to which when test specimen 10 is by side force, test specimen 10 can be rotated with opposite joints 3, so that even
The motion of fitting 3 in the horizontal direction will not on test specimen 10 applying power, so as to ensure that test specimen 10 only upper and lower
Draw direction on stress, so as to improve measuring accuracy.
As depicted in figs. 1 and 2, sliding block 302 has the groove opened wide towards test specimen 10, and groove has what is be oppositely arranged
Two side walls, the both ends of rotating shaft 3021 are separately fixed in two side walls, and at least a portion of test specimen 10 stretches into described recessed
Rotationally it is connected with rotating shaft 3021 in groove, by the setting of rotating shaft 3021, so that test specimen 10 can be with opposite joints 3
Relatively rotate, the Impact direction of holding test specimen 10 point-blank, is effectively offset side force with draw direction.
Alternatively, in other embodiments according to the present invention, rotating shaft 3021 can also be with the rotationally phase of sliding block 302
Even, when carrying out welding pulling-out force test to test specimen 10, rotating shaft 3021 and test specimen 10 are fixed, when to test specimen
During 10 progress welding pulling-out force test, test specimen 10 is fixed in rotating shaft 3021, when being tested, rotating shaft 3021 is with being tested
Test specimen 10 opposing slider 302 can rotate simultaneously, so as to reach the Impact direction of holding test specimen 10 with draw direction one
On bar straight line, the purpose of side force is effectively offset.
As depicted in figs. 1 and 2, welding pulling-out force test device 100 according to embodiments of the present invention, two can also be included
Bearing 2, two bearings 2 correspond with upper connector 31 and lower connector 32 respectively, and connector 3 is with stand 1 by corresponding
Bearing 2 is rotationally connected, and bearing 2 is connected with the support 301 on connector 3, so that connector 3 can be relative to support
301 freely rotate, and to offset side force, and use bearing 2, can reduce frictional force, test result are influenceed smaller.
As depicted in figs. 1 and 2, stand 1, connector 3 are bilateral symmetry, so as to be connected to when test specimen 10
On fitting 3 and when not stretched to test specimen 10, test specimen 10, connector 3, bearing 2, rotating shaft 3021 are all located at symmetrically
On axle, when test specimen 10 starts to be stretched, the Impact direction of test specimen 10 is identical with the direction that is stretched, and side occurs
Xiang Lihou, make test specimen 10 offset side force during, due to bearing 2, rotating shaft 3021 all on symmetry axis so that by
The Impact direction of test block 10 also on symmetry axis, and the direction of tensile force is vertical direction so that test result not by
The influence of side force, make test result more accurate.
As depicted in figs. 1 and 2, stand 1 includes Part I 11 and Part II 12, and Part I 11 is fixed, second
12 are divided to be movably arranged at along the vertical direction on Part I 11, one in Part I 11 and two connectors 3 is rotatable
Ground is connected, and Part II 12 is rotationally connected with another in two connectors 3.
Part II 12 can move relative to the above-below direction of Part I 11, when test specimen 10 is connected to two connectors 3
When upper, because Part I 11 is connected with lower connector 32, Part II 12 is connected with upper connector 31, when needing to tested
When part 10 is stretched, Part II 12 is moved up with respect to Part I 11, upper connector 31 relative to lower connector 32 to
Upper movement, so as to realize the stretching to test specimen 10.
In some specific embodiments, stand 1 also includes rail structure, Part II 12 by rail structure vertically
Direction is movably arranged on Part I 11, and the setting of rail structure can make the positioning of Part I 11 and Part II 12
It is more accurate, and rigidity is big, higher load can be born, so as to preferably realize the stretching to test specimen 10.
As depicted in figs. 1 and 2, Part I 11 and Part II 12 are configured to U-shaped frame body, and U-shaped frame body includes crossbeam
101 and two vertical beams 102 at the both ends of crossbeam 101 being connected to, crossbeam 101 is rotationally connected with corresponding connector 3, when
When Part II 12 moves relative to Part I 11 is upper along the vertical direction, the upper connector 31 that is connected on two crossbeams 101
Relative motion is also gone up along the vertical direction with lower connector 32, so as to be carried out up and down to the test specimen 10 being connected on connector 3
Stretching on direction, also, rail structure may be mounted at the vertical beam 102 of Part I 11 and the vertical beam 102 of Part II 12
Between, so as to realize the relative movement of Part I 11 and Part II 12.
It is alternatively possible to manually or electronic mode makes Part II 12 be moved up and down relative to Part I 11,
So as to realize the stretching to test specimen 10.
In short, welding pulling-out force test device 100 according to embodiments of the present invention, can relative to stand 1 by setting
Rotationally connected two connectors 3, sliding block 302 and rotating shaft 3021, make test specimen 10 during the tear that is stretched not
Influenceed by side force, so as to improve the measurement accuracy that welding pulling-out force test is carried out to test specimen 10.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, limit
Surely there is " first ", one or more this feature can be expressed or be implicitly included to the feature of " second ".The present invention's
In description, unless otherwise indicated, " multiple " are meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example describe
Structure, material or feature are contained at least one embodiment or example of the present invention.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can combine in an appropriate manner in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (10)
- A kind of 1. welding pulling-out force test device, it is characterised in that including：Stand；Relatively moveable two connectors in the vertical direction, each connector with the stand rotationally phase Even, and each connector is adapted to rotationally be connected with test specimen, so that two connectors are in above-below direction On distance increase when, the test specimen is always positioned at center.
- 2. welding pulling-out force test device according to claim 1, it is characterised in that the connector includes support and cunning Block, the support are rotationally connected with the stand, and the sliding block is relative in the lateral direction with the lower end of the support can Slide, the sliding block is suitable to rotationally be connected with test specimen.
- 3. welding pulling-out force test device according to claim 2, it is characterised in that the sliding block is slide rail.
- 4. welding pulling-out force test device according to claim 2, it is characterised in that also fitted including rotating shaft, the sliding block In being rotationally connected by the rotating shaft with test specimen.
- 5. welding pulling-out force test device according to claim 4, it is characterised in that the sliding block has towards tested The unlimited groove of part, the groove have two side walls being oppositely arranged, and the both ends of the rotating shaft are separately fixed at described in two In side wall, at least a portion of test specimen is stretched into the groove to be rotationally connected with the rotating shaft.
- 6. welding pulling-out force test device according to claim 1, it is characterised in that also including two bearings, two institutes State bearing and two connectors correspond, the connector and the stand by the corresponding bearing rotationally It is connected.
- 7. the welding pulling-out force test device according to any one of claim 1-6, it is characterised in that the stand, institute It is bilateral symmetry to state connector.
- 8. the welding pulling-out force test device according to any one of claim 1-6, it is characterised in that the stand includes Part I and Part II, the Part I are fixed, and the Part II is movably arranged at described along the vertical direction In a part, the Part I is rotationally connected with one in two connectors, the Part II and two Another in the connector is rotationally connected.
- 9. welding pulling-out force test device according to claim 8, it is characterised in that the stand also includes slide rail knot Structure, the Part II are movably arranged on the Part I along the vertical direction by the rail structure.
- 10. welding pulling-out force test device according to claim 8, it is characterised in that the Part I and described Two parts are configured to U-shaped frame body, and the U-shaped frame body includes crossbeam and is connected to two vertical beams at crossbeam both ends, described Crossbeam is rotationally connected with the corresponding connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710930258.5A CN107607401A (en) | 2017-10-09 | 2017-10-09 | Welding pulling-out force test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710930258.5A CN107607401A (en) | 2017-10-09 | 2017-10-09 | Welding pulling-out force test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107607401A true CN107607401A (en) | 2018-01-19 |
Family
ID=61068910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710930258.5A Pending CN107607401A (en) | 2017-10-09 | 2017-10-09 | Welding pulling-out force test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107607401A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931432A (en) * | 2018-08-20 | 2018-12-04 | 吉安市优特利科技有限公司 | Battery welding tensile force testing equipment |
| CN111650043A (en) * | 2020-03-23 | 2020-09-11 | 万向一二三股份公司 | Detection method for ultrasonic welding quality |
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| CN107014682A (en) * | 2017-04-05 | 2017-08-04 | 中国矿业大学(北京) | A kind of loading device and method suitable for three-dimensional composite crack growth test |
| CN207318242U (en) * | 2017-10-09 | 2018-05-04 | 北京华特时代电动汽车技术有限公司 | Welding pulling-out force test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB708364A (en) * | 1951-11-28 | 1954-05-05 | Mechans Ltd | Method of and means for obtaining free bend tests on welded test pieces |
| CN101614637A (en) * | 2009-07-29 | 2009-12-30 | 奇瑞汽车股份有限公司 | A kind of device and test method of measuring tensile strength of solder joint |
| CN102435498A (en) * | 2011-12-02 | 2012-05-02 | 中国石油天然气第七建设公司 | Pull-off force test method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931432A (en) * | 2018-08-20 | 2018-12-04 | 吉安市优特利科技有限公司 | Battery welding tensile force testing equipment |
| CN111650043A (en) * | 2020-03-23 | 2020-09-11 | 万向一二三股份公司 | Detection method for ultrasonic welding quality |
| CN111650043B (en) * | 2020-03-23 | 2023-05-05 | 万向一二三股份公司 | Ultrasonic welding quality detection method |
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Application publication date: 20180119 |