CN203011766U - Assistant locating and clamping device for tensile test of spot welding test sample - Google Patents
Assistant locating and clamping device for tensile test of spot welding test sample Download PDFInfo
- Publication number
- CN203011766U CN203011766U CN 201220723297 CN201220723297U CN203011766U CN 203011766 U CN203011766 U CN 203011766U CN 201220723297 CN201220723297 CN 201220723297 CN 201220723297 U CN201220723297 U CN 201220723297U CN 203011766 U CN203011766 U CN 203011766U
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- supporting disk
- welding sample
- auxiliary positioning
- positioning clamp
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Abstract
The utility model discloses an assistant locating and clamping device for tensile test of a spot welding test sample. The assistant locating and clamping device comprises a clamping bar, supporting discs and a pin, wherein one end of the clamping bar is a clamping part, the other end of the clamping bar is provided with a rectangular groove and a radial hole which are used for matching with the supporting discs to form hinge joint, so that the supporting discs can freely rotate in a certain angle range by taking the radial hole as the center, four angle adjustment locating holes are distributed in the peripheral direction of the supporting discs, the load direction is determined through the relationship of the relative position of the angle adjustment locating holes of the two supporting discs, so that the direction of a pure-shear load bored by a welding spot, the 30-degree loading direction, the 60-degree load direction and the pure-pull load direction can be determined. As the rigidity of the test sample is enhanced by the side walls, which are in contact with the supporting discs, of the spot welding test sample, the deformation of the region in which two plates in the test sample are in contact is restrained in the tensile-shear process, therefore, the rotation of a molten core is also reduced, then the specific gravity of the shear force in the load bored by the welding spot is large, so that the shear strength of the tested welding spot really reflects the anti-shear ability of the welding spot.
Description
Technical field
The utility model relates to a kind of pick-up unit of Joint Strength of welded specimen, particularly a kind of grip device that can measure the load-bearing capacity of solder joint under the different loads direction.
Background technology
Resistance spot welding has that effect is high, labor savings, finished product good integrity, economical with materials, the characteristics such as reduce costs.The quality check of tack-weld or web joint comprises visual examination and ruggedness test two parts content.During ruggedness test, cut from every batch of finished product.The hot-rolled reinforced bar solder joint should be done shear test; Cold-drawn low-carbon wire solder joint place does outside shear test, also should make tensile test.Along with the develop rapidly of industry, the crudy of product is required to improve constantly, also be subject to very large challenge as a kind of widely used material resistance weldering processing technology in these industrial products manufacturings.Existing resistance spot welding sample test will prepare spot welding overlap joint sample and cross tensile sample usually, and wherein the welding operation of cross tensile sample is complicated, and tension test also needs specific fixture.Publication number is that the utility model patent of CN200950105U discloses a kind of cross point welding sample multidirectional fatigue loading fixture, comprise lower clamp body 9, upper clamp body 8, in lower clamp body 9, the upper surface of pedestal 1 is provided with can be along the trapezoid block 5 of its slip, be provided with wedge clamping block 2 in the both sides of trapezoid block 5, wedge clamping block 2 can be in the promotion lower slider on trapezoid block 5 inclined-planes, form rectangular groove between another surface of wedge clamping block 2 and pedestal 1, be used for placing spot-welding sample.The above-mentioned part of lower clamp body 9 is identical with upper clamp body 8, and the lock collar 7 of lower clamp body 9 is positioned at the lower surface of pedestal 1, and the lock collar 7 of upper clamp body 8 is positioned at the upper surface of pedestal 1, is provided with on lock collar 7 to load the hole.Although this utility model can make spot-welding sample bear simultaneously different directions and draw and cut cyclic loading and make sample keep correct position in clamp body, the clamping of realization to sample, but sample has been applied unnecessary prestress during the fixture clamping in drawing process, the phenomenon of nugget rotation easily occurs in solder joint, affects the degree of accuracy of measured solder joint shear strength.Prior art operates more complicated usually to the spot-welding sample tension test, and it is convenient not that fixture uses, the chuck apparatus complex structure, and the test effect is not ideal enough.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and provide a kind of spot-welding sample tension test auxiliary positioning clamp device, but invented a kind of device of multiangular measurement Joint Strength for the KSII spot-welding sample, this device can not only be measured the ability that solder joint bears assigned direction load, and can effectively alleviate the solder joint phenomenon that nugget rotates in drawing process, make measured solder joint shear strength more truly reflect the anti-shear ability of solder joint.
Create purpose for reaching foregoing invention, the utility model adopts following technical proposals:
a kind of spot-welding sample tension test auxiliary positioning clamp device, comprise the auxiliary positioning clamp device that directly spot-welding sample is stretched and loads, the auxiliary positioning clamp device comprises that two overlap identical auxiliary positioning clamp system unit, every cover auxiliary positioning clamp system unit all comprises fixed pin bindiny mechanism and a clamping bar, the afterbody of clamping bar directly is fixedly connected with the fixture of cupping machine, every cover auxiliary positioning clamp system unit also comprises a supporting disk, outer cause circular arc outer rim and the linear pattern outer rim of supporting disk connect and compose, each fixed pin bindiny mechanism comprises respectively two fixed pins, a loading end of the linear pattern peripheral edge portion of supporting disk and spot-welding sample is equipped with two fixed pin pilot holes, two fixed pins assemble supporting disk and spot-welding sample and are fastenedly connected, make between supporting disk and spot-welding sample without relative motion, near and along supporting disk circular arc outer rim a series of angle modulation pilot holes that distribute, the head of clamping bar forms rectangular channel, rectangular channel is provided with two coaxial register pin through holes, the circular arc outer rim of supporting disk is placed directly in rectangular channel, pin that is articulated and connected passes two coaxial register pin through holes of rectangular channel and an angle modulation pilot hole of supporting disk simultaneously, make supporting disk and clamping bar form chain connection, supporting disk can freely rotate in the rectangular channel of clamping bar centered by the axis of the pin that is articulated and connected, the movable disassembled and assembled freely of the pin that is articulated and connected, another loading end assembling of the linear pattern peripheral edge portion of the supporting disk of another set of auxiliary positioning clamp system unit and spot-welding sample is fastenedly connected.
Above-mentioned supporting disk is 1/4th fan-shaped discs, be connected to form the supporting disk outer rim by 90 degree circular arc outer rims and right angle outer rim, place, right angle near the right angle outer rim excavates a rectangular aperture, each edge of rectangular aperture is parallel with the both sides of right angle outer rim respectively, the fixed pin pilot hole is arranged on the long limit edge near rectangular aperture, the rectangular aperture of the supporting disk of two cover auxiliary positioning clamp system unit fastens assembled configuration relatively, simultaneously two loading ends of spot-welding sample is loaded.
Evenly distribute on each above-mentioned supporting disk 4 angle modulation pilot holes are set, relatively fasten assembled configuration by two supporting disks, make between two plate composition surfaces of the loading direction of clamping bar axis and spot-welding sample and form 0 °, 30 °, 60 ° and 90 ° of angles, the tensile load that wherein applies 0 ° of angle only is used for measuring the anti-pure shear density of load of solder joint, and the tensile load that wherein applies 90 ° of angles only is used for measuring the anti-pure density of load of drawing of solder joint.
The KSII spot-welding sample of the utility model tension test auxiliary positioning clamp device institute clamping, U-shaped flap spare by two short channel-section steel plate shapes is welded, the transversal section of spot-welding sample is H shape, solder joint is positioned at the junction of bottom outer surface or the bottom outer surface of two U-shaped flap spares, the fixed pin pilot hole of four wing plates of spot-welding sample is fastenedly connected by fixed pin and supporting disk respectively, be the link closely outer rim of supporting disk of the groove of same U-shaped flap spare, four wing plates of spot-welding sample form the loading end of spot-welding samples.
The utility model has following substantive distinguishing features and advantage compared with prior art:
1. the utility model spot-welding sample tension test auxiliary positioning clamp device can be for the loading strength of the suffered assigned direction of sample testing solder joint, and measured shearing strength is truer, can be used for vehicle collision simulation analyze in the determining of solder joint failure parameter.
2. the utility model spot-welding sample is connected with supporting disk by four fixed pins, increased the rigidity of sample due to the sidewall of spot-welding sample, make that in sample, two distortion of the contacted zone of plate in drawing the process of cutting are suppressed, therefore the rotation of nugget is also alleviated, so in the suffered load of solder joint, the proportion of shearing force becomes large, makes measured solder joint shear strength more near actual value.
3. the special-purpose spot-welding sample of the utility model is simpler than the welding of cross spot-welding sample, the structure typing degree of accuracy of cross spot-welding sample requires high, the degree of accuracy of orthogonal angles directly affects the degree of accuracy of spot-welding sample test result, and the special-purpose spot-welding sample of the utility model only needs that two U-shaped flap spares are simply located centering and just can weld formation, the structural failure of the special-purpose spot-welding sample of the utility model is less, and is little on the degree of accuracy impact of spot-welding sample test result.
4. clamping mode of the present utility model has kept the centering of sample holder better, need not take off fixture and just can change easily sample, operates easylier, and testing efficiency is higher.
Description of drawings
Fig. 1 is the structural representation that the utility model embodiment one auxiliary positioning clamp device applies 0 ° of direction load.
Fig. 2 is the spot-welding sample schematic diagram of the utility model embodiment one.
Fig. 3 is the utility model embodiment two auxiliary positioning clamp devices structural representations when applying 30 ° of direction load.
Fig. 4 is the utility model embodiment three auxiliary positioning clamp devices structural representations when applying 90 ° of direction load.
Embodiment
Preferred embodiment accompanying drawings of the present utility model is as follows:
Embodiment one:
referring to Fig. 1 and Fig. 2, a kind of spot-welding sample tension test auxiliary positioning clamp device, comprise the auxiliary positioning clamp device that directly spot-welding sample 6 is stretched and loads, the auxiliary positioning clamp device comprises that two overlap identical auxiliary positioning clamp system unit, every cover auxiliary positioning clamp system unit all comprises fixed pin bindiny mechanism and a clamping bar 1, the afterbody of clamping bar 1 directly is fixedly connected with the fixture of cupping machine, every cover auxiliary positioning clamp system unit also comprises a supporting disk 4, outer cause circular arc outer rim and the linear pattern outer rim of supporting disk 4 connect and compose, each fixed pin bindiny mechanism comprises respectively two fixed pins 3, a loading end of the linear pattern peripheral edge portion of supporting disk 4 and spot-welding sample 6 is equipped with two fixed pin pilot holes, two fixed pins 3 assemble supporting disk 4 and spot-welding sample 6 and are fastenedly connected, make between supporting disk 4 and spot-welding sample 6 without relative motion, near and along supporting disk 4 circular arc outer rims a series of angle modulation pilot holes 5 that distribute, the head of clamping bar 1 forms rectangular channel, rectangular channel is provided with two coaxial register pin through holes, the circular arc outer rim of supporting disk 4 is placed directly in rectangular channel, pin 2 that is articulated and connected passes two coaxial register pin through holes of rectangular channel and an angle modulation pilot hole 5 of supporting disk 4 simultaneously, make supporting disk 4 and clamping bar 1 form chain connection, supporting disk 4 can freely rotate in the rectangular channel of clamping bar 1 centered by the axis of the pin 2 that is articulated and connected, the movable disassembled and assembled freely of pin 2 is articulated and connected, another loading end assembling of the linear pattern peripheral edge portion of the supporting disk 4 of another set of auxiliary positioning clamp system unit and spot-welding sample 6 is fastenedly connected.In the present embodiment, the auxiliary positioning clamp device comprises clamping bar 1, and supporting disk 4 and pin web member three parts form.Clamping bar 1 is a multidiameter, one end is retained part, and the other end has rectangular channel and register pin through hole radially, in order to coordinate with supporting disk 4, form chain connection, supporting disk 4 can freely be rotated in the certain angle scope centered by the register pin through hole of clamping bar 1.supporting disk 4 comprises identical two, each supporting disk 4 near the circular arc outer circumference to being distributed with a series of angle modulation pilot holes 5, relative position relation between the fixed pin pilot hole that angle modulation pilot hole 5 and the fixed pin 3 of loading direction by two supporting disks 4 passes is determined, four wing plates of spot-welding sample 6 form the loading end of spot-welding samples 6 at this moment, the spot-welding sample 6 of the present embodiment as shown in Figure 2, solder joint is positioned at the center of the junction, bottom of two U-shaped flap spares, being spot-welding sample is welded by the flap of two short channel-section steel plate shapes, the transversal section of spot-welding sample 6 is H shape, four wing plates of spot-welding sample 6 are fastenedly connected respectively with by fixed pin 3 and supporting disk 4.The special-purpose spot-welding sample 6 of the utility model is simpler than the welding of cross spot-welding sample, and the structure typing degree of accuracy of cross spot-welding sample requires high, and the degree of accuracy of orthogonal angles directly affects the degree of accuracy of spot-welding sample test result; And 6 need of the special-purpose spot-welding sample of the utility model are simply located two U-shaped flap spares for centering and just can be welded formation, and the structural failure of the special-purpose spot-welding sample 6 of the utility model is less, affect little on the degree of accuracy of spot-welding sample test result.The present embodiment only needs a kind of spot-welding sample 6 and proving installation can obtain shearing strength and the tensile strength of solder joint, and needn't prepare respectively spot welding overlap joint sample and cross tensile sample, wherein the welding operation of cross tensile sample is complicated, and tension test also needs the comparatively complicated fixture of specific structure.
In the present embodiment, above-mentioned supporting disk 4 is 1/4th fan-shaped discs, be connected to form supporting disk 4 outer rims by 90 degree circular arc outer rims and right angle outer rim, place, right angle near the right angle outer rim excavates a rectangular aperture, each edge of rectangular aperture is parallel with the both sides of right angle outer rim respectively, the fixed pin pilot hole is arranged on the long limit edge near rectangular aperture, the rectangular aperture of the supporting disk 4 of two cover auxiliary positioning clamp system unit fastens assembled configuration relatively, simultaneously two loading ends of spot-welding sample 6 is loaded.Can realize fully on 1/4th fan-shaped discs that close the mutual alignment of layout centered by the center of circle of supporting disk 4 is that angle modulation pilot hole 5 between 0 °～90 ° distributes and arranges, and satisfies the detection needs of various load angles.
In the present embodiment, evenly distribute on each above-mentioned supporting disk 4 and 5, four angle modulation pilot holes 5 of 4 angle modulation pilot holes are set determine that respectively solder joint bears pure shear loading direction, 30 degree loading directions, 60 degree loading direction and the pure loading directions that draw.Spot-welding sample 6 is connected with two supporting disks 4 by four fixed pins 3, by two supporting disks 4 fastening assembled configuration relative to spot-welding sample 6 respectively, make between two plate composition surfaces of the loading direction of clamping bar 1 axis and spot-welding sample 6 and form 0 ° of angle, can measure the anti-pure shear density of load of solder joint, measured solder joint shear strength can more truly reflect the anti-shear ability of solder joint with respect to traditional spot welding overlap joint sample.
when using the present embodiment tension test auxiliary positioning clamp device, at first clamping bar 1 is fixed on the wedge shape stretching clamp of electronic universal tester, reliably install, supporting disk 4 is placed in the rectangular channel of clamping bar 1, the angle modulation pilot hole 5 that circumferentially distributes on supporting disk 4 will with the rectangular channel of clamping bar 1 head on radial location pin through hole coaxial, the pin 2 that will be articulated and connected again inserts in two register pin through holes, make supporting disk 4 and clamping bar 1 form chain connection, supporting disk 4 must freely rotate in the rectangular channel of clamping bar 1 head centered by the axis of two register pin through holes, the prestress that in the time of can eliminating clamping like this, spot-welding sample 6 is applied.When spot-welding sample 6 was installed, supporting disk 4 will be placed by mode shown in Figure 1, then four fixed pins 3 was inserted in the fixed pin pilot hole of supporting disk 4 correspondences, made between spot-welding sample 6 and supporting disk 4 without relative motion.Four angle modulation pilot holes 5 of supporting disk 4 circumferencial directions are the different loading direction of auxiliary formation respectively, by the configuration of clamping bar 1 with the not homologous angles pilot hole 5 of supporting disk 4, can make between two plate composition surfaces of loading direction and spot-welding sample 6 and form 0 °, 30 °, 60 ° and 90 ° of angles, wherein the loading direction of 0 ° and 90 ° angle can record shearing strength and the tensile strength of solder joint.After spot-welding sample 6 and supporting disk 4 are fixed, then clamping bar 1 is connected by the pin 2 that is articulated and connected with supporting disk 4, then the load value zero clearing on electronic universal tester, clamping bar 1 is fixed to movably on the wedge shape stretching clamp, carry out tension test.
Embodiment two:
The present embodiment and embodiment one are basic identical, and special feature is:
In the present embodiment, referring to Fig. 3, form 30 ° of angles between two plate composition surfaces of the loading direction of clamping bar 1 axis and spot-welding sample 6, can measure the density of load of solder joint.The spot-welding sample 6 that the present embodiment adopts is identical with the spot-welding sample 6 that embodiment one adopts.The present embodiment spot-welding sample tension test auxiliary positioning clamp device can accurately be measured solder joint and bear and the load test stabilization data of welding the plane and become 30 ° of angles.
Embodiment three:
The present embodiment and previous embodiment are basic identical, and special feature is:
In the present embodiment, referring to Fig. 4, form 90 ° of angles between two plate composition surfaces of the loading direction of clamping bar 1 axis and spot-welding sample 6, can measure the anti-pure density of load of drawing of solder joint.The spot-welding sample 6 that the present embodiment adopts is identical with the spot-welding sample 6 that embodiment one adopts.The present embodiment spot-welding sample tension test auxiliary positioning clamp device can accurately be measured the experimental data that solder joint bears pure extension load.
The above is illustrated the utility model embodiment by reference to the accompanying drawings; but the utility model is not limited to above-described embodiment; can also make multiple variation according to the purpose that utility model of the present utility model is created; all according to technical solutions of the utility model Spirit Essence and principle under make change, modification, substitute, combination, simplify; all should be the substitute mode of equivalence; as long as meet structure and aufbauprinciple for the utility model spot-welding sample tension test auxiliary positioning clamp device, all belong to protection domain of the present utility model.
Claims (3)
1. spot-welding sample tension test auxiliary positioning clamp device, comprise the auxiliary positioning clamp device that directly spot-welding sample (6) is stretched and loads, described auxiliary positioning clamp device comprises that two overlap identical auxiliary positioning clamp system unit, the described auxiliary positioning clamp system of every cover unit all comprises fixed pin bindiny mechanism and a clamping bar (1), the afterbody of described clamping bar (1) directly is fixedly connected with the fixture of cupping machine, it is characterized in that: the described auxiliary positioning clamp system of every cover unit also comprises a supporting disk (4), outer cause circular arc outer rim and the linear pattern outer rim of described supporting disk (4) connect and compose, each described fixed pin bindiny mechanism comprises respectively two fixed pins (3), one of the linear pattern peripheral edge portion of described supporting disk (4) and spot-welding sample (6) loads termination and respectively is provided with two fixed pin pilot holes, two described fixed pins (3) assemble described supporting disk (4) and spot-welding sample (6) and are fastenedly connected, make between described supporting disk (4) and spot-welding sample (6) without relative motion, near and along described supporting disk (4) the circular arc outer rim a series of angle modulation pilot holes (5) that distribute, the head of described clamping bar (1) forms rectangular channel, described rectangular channel is provided with two coaxial register pin through holes, the circular arc outer rim of described supporting disk (4) is placed directly in described rectangular channel, the pin that is articulated and connected (2) passes two coaxial register pin through holes of described rectangular channel and an angle modulation pilot hole (5) of described supporting disk (4) simultaneously, make described supporting disk (4) and described clamping bar (1) form chain connection, described supporting disk (4) can freely rotate in the rectangular channel of described clamping bar (1) centered by the axis of the described pin that is articulated and connected (2), the movable disassembled and assembled freely of the described pin that is articulated and connected (2), another loading end assembling of the linear pattern peripheral edge portion of the supporting disk (4) of another set of described auxiliary positioning clamp system unit and spot-welding sample (6) is fastenedly connected.
2. spot-welding sample tension test auxiliary positioning clamp device according to claim 1, it is characterized in that: described supporting disk (4) is 1/4th fan-shaped discs, be connected to form described supporting disk (4) outer rim by 90 degree circular arc outer rims and right angle outer rim, place, right angle near the right angle outer rim excavates a rectangular aperture, each edge of rectangular aperture is parallel with the both sides of right angle outer rim respectively, described fixed pin pilot hole is arranged on the long limit edge near rectangular aperture, the rectangular aperture of the supporting disk (4) of two cover described auxiliary positioning clamp system unit fastens assembled configuration relatively, simultaneously two loading ends of spot-welding sample (6) loaded.
3. spot-welding sample tension test auxiliary positioning clamp device according to claim 2, it is characterized in that: upper evenly distribution of each described supporting disk (4) arranges 4 angle modulation pilot holes (5), relatively fasten assembled configuration by two described supporting disks (4), make between two plate composition surfaces of the loading direction of described clamping bar (1) axis and spot-welding sample (6) and form 0 °, 30 °, 60 ° and 90 ° of angles, the tensile load that wherein applies 0 ° of angle only is used for measuring the anti-pure shear density of load of solder joint, the tensile load that wherein applies 90 ° of angles only is used for measuring the anti-pure density of load of drawing of solder joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723297 CN203011766U (en) | 2012-12-25 | 2012-12-25 | Assistant locating and clamping device for tensile test of spot welding test sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723297 CN203011766U (en) | 2012-12-25 | 2012-12-25 | Assistant locating and clamping device for tensile test of spot welding test sample |
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| CN203011766U true CN203011766U (en) | 2013-06-19 |
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| CN 201220723297 Expired - Fee Related CN203011766U (en) | 2012-12-25 | 2012-12-25 | Assistant locating and clamping device for tensile test of spot welding test sample |
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| CN103592185A (en) * | 2013-11-29 | 2014-02-19 | 哈尔滨工业大学 | Measuring method for maximum tensile and shearing force of spot-welded joint of friction stir welding |
| CN103674696A (en) * | 2013-12-26 | 2014-03-26 | 哈尔滨工业大学 | Multi-angle large-deformation shear test fixture of structure stress absorption layer of pavement |
| RU2548391C1 (en) * | 2013-12-19 | 2015-04-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Липецкий государственный технический университет" (ЛГТУ) | Device for material sample test for combined effect of tension, shearing and bending forces |
| CN104764661A (en) * | 2015-04-02 | 2015-07-08 | 上海交通大学 | Test device and test method for measuring mechanical properties of lap joint samples |
| CN105021463A (en) * | 2014-04-28 | 2015-11-04 | 深圳市金洲精工科技股份有限公司 | Welding strength detection mechanism |
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| CN103592185A (en) * | 2013-11-29 | 2014-02-19 | 哈尔滨工业大学 | Measuring method for maximum tensile and shearing force of spot-welded joint of friction stir welding |
| RU2548391C1 (en) * | 2013-12-19 | 2015-04-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Липецкий государственный технический университет" (ЛГТУ) | Device for material sample test for combined effect of tension, shearing and bending forces |
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| CN105021463A (en) * | 2014-04-28 | 2015-11-04 | 深圳市金洲精工科技股份有限公司 | Welding strength detection mechanism |
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| CN110031288A (en) * | 2019-05-17 | 2019-07-19 | 王渡初 | A kind of plate pure shear experiment loading device |
| CN110031288B (en) * | 2019-05-17 | 2021-09-21 | 王渡初 | Pure shearing experiment loading device for plates |
| CN113029766A (en) * | 2019-12-24 | 2021-06-25 | 中核建中核燃料元件有限公司 | Fixture for detecting shearing force of spot welding of spacer grid guide pipe and spacer grid |
| CN111238925A (en) * | 2020-03-18 | 2020-06-05 | 吉林大学 | Multi-angle shearing clamp for thin plate test piece |
| CN112213189A (en) * | 2020-09-28 | 2021-01-12 | 河南航天精工制造有限公司 | Composite tension-shear test device |
| CN113029769A (en) * | 2021-03-10 | 2021-06-25 | 湘潭大学 | Stretching experiment clamp capable of adjusting angle and being flexibly installed |
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