CN215065764U - Welding spot strength test device - Google Patents
Welding spot strength test device Download PDFInfo
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- CN215065764U CN215065764U CN202120763938.4U CN202120763938U CN215065764U CN 215065764 U CN215065764 U CN 215065764U CN 202120763938 U CN202120763938 U CN 202120763938U CN 215065764 U CN215065764 U CN 215065764U
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Abstract
The utility model provides a welding spot strength test device, which comprises a fixing mechanism and a clamping mechanism, wherein the fixing mechanism comprises a chuck plate, a chuck and a connecting pin, the chuck comprises an installation part and a stretching part arranged on the installation part, the stretching part is used for connecting an electronic stretching universal tester, and the connecting pin sequentially passes through an installation hole on the installation part and an angle adjusting hole on the chuck plate so as to fix the chuck on the chuck plate; the clamping mechanism comprises a first clamping assembly and a second clamping assembly, the first clamping assembly and the second clamping assembly are correspondingly arranged, a sample sheet is arranged between the first clamping assembly and the second clamping assembly, two ends of the sample sheet are respectively connected with the first clamping assembly and the second clamping assembly, and the first clamping assembly and the second clamping assembly are respectively fixed on different chucks. The utility model discloses simple structure, convenient operation, the evaluation solder joint that can be quick is at the solder joint inefficacy performance under shearing, tensile and the mixed mode, and test cycle is short, and experimental cost is lower.
Description
Technical Field
The utility model relates to a welding strength test technical field, in particular to solder joint intensity test device.
Background
With the improvement of living standard of people, the automobile becomes a common tool for riding instead of walk, and the automobile mainly comprises four parts, namely an automobile body, a chassis, an engine and a gearbox, wherein the automobile body is a bearing body of other components, so that the performance of the automobile body directly influences the performance of the whole automobile.
The automobile body is mainly formed by connecting structural sheet metal parts, the connection between the sheet metal parts usually adopts the processes of bolt connection, glue joint, riveting, carbon dioxide gas shielded welding, resistance spot welding and the like, wherein the resistance spot welding is widely applied to the connection production of each structural part of the automobile body due to the advantages of light weight, high static strength, good reliability, stable performance, easiness in realizing automation and the like.
In the prior art, if a welding spot of a vehicle fails in a driving process, abnormal sound is caused to affect driving experience, and a safety accident is caused to the greatest extent.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at providing a solder joint intensity test device to solve the problem that adopts the test cycle length that whole car endurance test aassessment solder joint failure property leads to.
A welding spot strength test device comprises two fixing mechanisms which are arranged in central symmetry and a clamping mechanism arranged between the fixing mechanisms;
the fixing mechanism comprises a chuck plate, a chuck and a connecting pin, wherein a plurality of groups of angle adjusting holes are formed in the chuck plate, at least two angle adjusting holes are formed in each group, the chuck comprises an installation part and a stretching part arranged on the installation part, the stretching part is used for connecting an electronic stretching universal testing machine, a plurality of installation holes are formed in the installation part, and the connecting pin sequentially penetrates through the installation holes and the angle adjusting holes to enable the chuck to be fixed on the chuck plate;
the clamping mechanism comprises a first clamping assembly and a second clamping assembly, the first clamping assembly and the second clamping assembly are correspondingly arranged, a sample sheet is arranged between the first clamping assembly and the second clamping assembly, a mounting structure is arranged on the sample sheet, two ends of the sample sheet are respectively connected with the first clamping assembly and the second clamping assembly through the mounting structure, a connecting structure is arranged on the clamping assembly, and the first clamping assembly and the second clamping assembly are respectively fixed on different chucks through the connecting structure.
According to the welding spot strength test device, the welding spot failure performance test of the sample sheet is carried out by utilizing the welding spot strength test device, the operation mode of actually measuring the failure performance of the welding spot on the whole vehicle in the prior art is replaced, the test period is shortened, particularly, a first clamping assembly and a second clamping assembly are arranged for respectively clamping two ends of the sample sheet, and then the fixing is realized by utilizing a mounting structure arranged on the sample sheet, in addition, a connecting structure is also arranged on the two clamping assemblies and used for respectively fixing the first clamping assembly and the second clamping assembly on different chuck plates, through arranging two fixing mechanisms with central symmetry, each fixing mechanism comprises a chuck plate and a chuck, each chuck comprises a mounting part and a stretching part, a connecting pin sequentially penetrates through a mounting hole on the mounting part and an angle adjusting hole on the chuck plate, so that the chuck can be fixed on the chuck plate, the tensile component on one fixing mechanism is used for connecting the moving end of the electronic tensile universal testing machine, the tensile component on the other fixing mechanism is used for connecting the static end of the electronic tensile universal testing machine, and a welding spot failure test can be started after the installation is finished, so that relevant test data about welding spot failure performance can be quickly obtained, long-term tracking on the whole vehicle is not needed, and the problem of long test period caused by the fact that the whole vehicle endurance test is adopted to evaluate the welding spot failure performance is solved; furthermore, the utility model discloses simple structure, convenient operation is favorable to reducing test cost.
Further, the test sample sheet comprises a tensile test sample sheet, a shearing test sample sheet and a mixed test sample sheet, wherein the tensile test sample sheet is used for testing the axial tensile property of the welding spot, the shearing test sample sheet is used for testing the transverse shearing property of the welding spot, and the mixed test sample sheet is used for testing the transverse bending property of the welding spot.
Furthermore, the sample sheet comprises two superposed sample plates, and the welding point is arranged in the middle of the overlapped part of the two sample plates.
Further, the first clamping assembly and the second clamping assembly both comprise a shearing pressing block, and the shearing pressing block is used for fixing the shearing sample piece.
Further, the first clamping assembly and the second clamping assembly further respectively comprise a mixing pressing block and a mixing auxiliary block, the sample plate comprises a vertical plate and a horizontal plate, the mixing pressing block is attached to the vertical plate, one end of the mixing auxiliary block is attached to the horizontal plate, and the other end of the mixing auxiliary block is connected with the chuck plate.
Further, first centre gripping subassembly with the second centre gripping subassembly all includes a plurality of tensile briquetting and tensile supplementary piece, tensile briquetting is located four edges and corners of tensile test piece, tensile supplementary piece includes clamping part and fixed part, the clamping part is used for fixing tensile test piece, the fixed part is used for connecting the (holding) chuck.
Furthermore, the connecting structure comprises a plurality of through holes and shoulder screws arranged in the through holes, screw holes are formed in the side faces of the chuck plates, and the shoulder screws penetrate through the through holes and are movably connected with the screw holes.
Further, the mounting structure comprises a plurality of fixing holes and bolts arranged in the fixing holes, and the bolts penetrate through the fixing holes to fix the sample piece on the clamping assembly.
Drawings
Fig. 1 is a schematic structural view of a welding spot strength testing apparatus according to a first embodiment of the present invention;
FIG. 2 is a schematic structural view of a tensile coupon;
FIG. 3 is a schematic structural diagram of a tensile test piece, a tensile pressing block and a bolt;
FIG. 4 is a schematic view of the structure of the stretching auxiliary block in FIG. 1;
fig. 5 is a schematic structural view of a welding spot strength testing apparatus according to a second embodiment of the present invention;
FIG. 6 is a schematic structural view of a sheared coupon;
FIG. 7 is a schematic structural view of a shearing specimen piece, a shearing pressing block and a shaft shoulder screw;
fig. 8 is a schematic structural view of a welding spot strength testing apparatus according to a third embodiment of the present invention;
FIG. 9 is a schematic structural view of a hybrid coupon;
FIG. 10 is a schematic structural diagram of a mixed sample sheet, a shearing press block, a shoulder screw and a mixing press block;
FIG. 11 is a schematic structural diagram of a mixing specimen piece, a shoulder screw, a mixing pressing block, and a mixing auxiliary block.
Description of the main element symbols:
the following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 4, a welding spot strength testing apparatus 100 according to a first embodiment of the present invention is shown, which includes two fixing mechanisms disposed in a central symmetry manner and a clamping mechanism disposed between the two fixing mechanisms;
the fixing mechanism comprises a chuck 10, a chuck 20 and a connecting pin, wherein a plurality of groups of angle adjusting holes 101 are formed in the chuck 10, at least two angle adjusting holes 101 are formed in each group, the chuck 20 comprises a mounting part 201 and a stretching part 202 arranged on the mounting part 201, the stretching part 202 is used for being connected with an electronic stretching universal testing machine, a plurality of mounting holes 2011 are formed in the mounting part 201, and the connecting pin sequentially penetrates through the mounting holes 2011 and the angle adjusting holes 101 to enable the chuck 20 to be fixed on the chuck 10; in this embodiment, the chuck 10 is specifically configured to be fan-shaped, and three sets of angle adjustment holes 101 are provided on the fan-shaped chuck 10, wherein two sets of angle adjustment holes 101 are provided, the other set is four angle adjustment holes 101, the mounting member 201 is configured to be U-shaped, two mounting holes 2011 are provided on the left side and the right side of the mounting member 201, and the mounting hole 2011 on the left side and the mounting hole 2011 on the right side are symmetrically provided;
the clamping mechanism comprises a first clamping assembly and a second clamping assembly, the first clamping assembly and the second clamping assembly are correspondingly arranged, a sample sheet is arranged between the first clamping assembly and the second clamping assembly, a mounting structure is arranged on the sample sheet, two ends of the sample sheet are respectively connected with the first clamping assembly and the second clamping assembly through the mounting structure, a connecting structure is arranged on the clamping assembly, and the first clamping assembly and the second clamping assembly are respectively fixed on different chuck plates 10 through the connecting structure.
According to the welding spot strength test device 100, the first clamping assembly and the second clamping assembly are arranged to clamp two ends of the sample sheet respectively, the fixing is realized by the mounting structure arranged on the sample sheet, the first clamping assembly and the second clamping assembly are fixed on different chucks 10 respectively, the connecting pin sequentially passes through the mounting hole 2011 on the mounting part 201 and the angle adjusting hole 101 on the chuck 10, so that the chuck 20 can be fixed on the chuck 10, wherein the stretching component 202 on one fixing mechanism is used for connecting the movable end of the electronic stretching universal testing machine, the stretching component 202 on the other fixing mechanism is used for connecting the static end of the electronic stretching universal testing machine, the welding spot 302 failure test can be started after the installation is finished, therefore, relevant test data about the failure performance of the welding spot 302 can be quickly obtained, long-term real-time tracking of the whole vehicle is not needed, and the problem of long test period caused by the fact that the failure performance of the welding spot 302 is evaluated by adopting a whole vehicle endurance test is solved; furthermore, the utility model discloses simple structure, convenient operation is favorable to reducing test cost.
Referring to fig. 2, 6 and 9, in the present embodiment, in order to comprehensively test the failure performance of the solder joint 302, the test pieces include a tensile test piece 30, a shearing test piece 40 and a mixed test piece 50, the tensile test piece 30 is used for testing the axial tensile performance of the solder joint 302, the shearing test piece 40 is used for testing the transverse shear performance of the solder joint 302, and the mixed test piece 50 is used for testing the transverse bending performance of the solder joint 302, and the three test pieces are arranged to complete the tensile performance test of the solder joint 302 in different directions, which is beneficial to more comprehensively evaluating the failure performance of the solder joint 302.
By way of example and not limitation, in this embodiment, the coupon comprises two stacked coupon plates with the weld 302 located in the middle of the overlap of the two coupon plates, wherein the tensile coupon 30 is made from two rectangular coupon plates stacked vertically, the shear coupon 40 is made from two rectangular coupon plates stacked in parallel, and the hybrid coupon 50 is made from two L-shaped coupon plates stacked in parallel.
Further, the first clamping assembly and the second clamping assembly each include a plurality of tension press blocks 60 and a tension auxiliary block 70, the tension press blocks 60 are disposed at four corners of the tension sample sheet 30, the tension auxiliary block 70 includes a clamping portion 701 and a fixing portion 702, the clamping portion 701 is used for fixing the tension sample sheet 30, the fixing portion 702 is used for connecting the chuck 10, in this embodiment, the first clamping assembly and the second clamping assembly each include four tension press blocks 60 and two tension auxiliary blocks 70, the tension sample sheet 30 is manufactured by vertically overlapping two rectangular sample plates, the four tension press blocks 60 are respectively fixed at four corners of the tension sample sheet 30, the two tension auxiliary blocks 70 are respectively disposed on two upper and lower chucks 10 through the fixing portions 702, are respectively connected to the front and back ends of the tension sample sheet 30 through the clamping portions 701, after the installation is completed, by opening the electronic tension sample universal testing machine, the axial tensile properties of the weld 302 may be tested.
It should be noted that the mounting structure includes a plurality of fixing holes 301 and bolts 80 disposed in the fixing holes 301, the bolts 80 pass through the fixing holes 301 to fix the specimen piece on the clamping assembly, in this embodiment, the connecting structure on the tensile specimen piece 30 includes 2 fixing holes 301, and the bolts 80 pass through the fixing holes 301, the tensile pressing block 60 and the fixing portion 702 in sequence to fix the tensile specimen piece 30 and the tensile pressing block 60 on the tensile auxiliary block 70.
Referring to fig. 5 to 7, a solder joint strength testing apparatus 100a according to a second embodiment of the present invention is shown, where the solder joint strength testing apparatus 100a in this embodiment is different from the solder joint strength testing apparatus 100 in the first embodiment in that:
the first clamping assembly and the second clamping assembly in the embodiment only comprise the shearing pressing block 90, the shearing pressing block 90 is used for fixing the shearing sample sheet 40, the shearing sample sheet 40 is composed of two sample plates which are stacked in parallel, one shearing pressing block 90 fixes one end of the shearing sample sheet 40 to the upper chuck plate 10, the other shearing pressing block 90 fixes the other end of the shearing sample sheet 40 to the lower chuck plate 10, and after the installation is completed, the transverse shear resistance test of the welding point 302 can be performed.
It should be noted that the connecting structure includes a plurality of through holes and a shoulder screw 110 disposed in the through holes, a screw hole is disposed on a side surface of the chuck 10, the shoulder screw 110 penetrates through the through hole and is movably connected with the screw hole, in this embodiment, the connecting structure on the shearing press block 90 has two through holes, and tightening the shoulder screw 110 can fix the shearing press block 90 on the chuck 10.
Referring to fig. 8 to 11, a solder joint strength testing apparatus 100b according to a third embodiment of the present invention is shown, wherein the solder joint strength testing apparatus 100b of the present embodiment is different from the solder joint strength testing apparatus 100a of the second embodiment in that:
the first clamping assembly and the second clamping assembly in this embodiment respectively include a mixing pressing block 120 and a mixing auxiliary block 130 in addition to the shearing pressing block 90, the sample plate includes a vertical plate and a horizontal plate, the mixing pressing block 120 is attached to the vertical plate, one end of the mixing auxiliary block 130 is attached to the horizontal plate, the other end of the mixing auxiliary block 130 is connected to the chuck plate 10, and after the installation, the transverse bending resistance test of the welding point 302 can be performed.
In summary, the solder joint strength test apparatus 100 is used to perform a solder joint 302 failure performance test on a sample sheet, so as to replace the operation mode of actually measuring the failure performance of the solder joint 302 on the entire vehicle in the conventional art, thereby shortening the test period, specifically, a first clamping assembly and a second clamping assembly are arranged to respectively clamp two ends of the sample sheet, and then the fixing is realized by using a mounting structure arranged on the sample sheet, in addition, a connecting structure is further arranged on the two clamping assemblies, the connecting structure is used to respectively fix the first clamping assembly and the second clamping assembly on different chuck plates 10, by arranging two fixing mechanisms with central symmetry, the fixing mechanism comprises the chuck plate 10 and the chuck 20, the chuck 20 comprises a mounting part 201 and a stretching part 202, and a connecting pin sequentially passes through the mounting hole 2011 on the mounting part 201 and the angle adjusting hole 101 on the chuck plate 10, so that the chuck 20 can be fixed on the chuck plate 10, the tensile component 202 on one fixing mechanism is used for being connected with the moving end of the electronic tensile universal testing machine, the tensile component 202 on the other fixing mechanism is used for being connected with the static end of the electronic tensile universal testing machine, and a welding spot 302 failure test can be started after the installation is finished, so that relevant test data about the welding spot 302 failure performance can be quickly obtained, long-term real-time tracking on the whole vehicle is not needed, and the problem of long test period caused by the fact that the welding spot 302 failure performance is evaluated by adopting a whole vehicle endurance test is solved; in addition, the utility model has simple structure and convenient operation, and is beneficial to reducing the test cost; the utility model discloses a set up the different test sample piece of three kinds of structures to the cooperation carries out the centre gripping with first centre gripping subassembly and the second centre gripping subassembly of constituteing by different parts and fixes, can test the aassessment to axial tensile strength ability, horizontal bending resistance ability of solder joint 302 respectively, thereby the full aspect aassessment solder joint 302's inefficacy ability.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. A welding spot strength test device comprises two fixing mechanisms which are arranged in central symmetry and a clamping mechanism arranged between the fixing mechanisms, and is characterized in that the clamping mechanism is arranged between the two fixing mechanisms;
the fixing mechanism comprises a chuck plate, a chuck and a connecting pin, wherein a plurality of groups of angle adjusting holes are formed in the chuck plate, at least two angle adjusting holes are formed in each group, the chuck comprises an installation part and a stretching part arranged on the installation part, the stretching part is used for connecting an electronic stretching universal testing machine, a plurality of installation holes are formed in the installation part, and the connecting pin sequentially penetrates through the installation holes and the angle adjusting holes to enable the chuck to be fixed on the chuck plate;
the clamping mechanism comprises a first clamping assembly and a second clamping assembly, the first clamping assembly and the second clamping assembly are correspondingly arranged, a sample sheet is arranged between the first clamping assembly and the second clamping assembly, a mounting structure is arranged on the sample sheet, two ends of the sample sheet are respectively connected with the first clamping assembly and the second clamping assembly through the mounting structure, a connecting structure is arranged on the clamping assembly, and the first clamping assembly and the second clamping assembly are respectively fixed on different chucks through the connecting structure.
2. The welding spot strength test device according to claim 1, wherein the test pieces comprise a tensile test piece, a shearing test piece and a mixing test piece, the tensile test piece is used for testing the axial tensile property of the welding spot, the shearing test piece is used for testing the transverse shear resistance of the welding spot, and the mixing test piece is used for testing the transverse bending resistance of the welding spot.
3. The weld strength testing apparatus according to claim 2, wherein the test piece comprises two stacked test sample plates, and the weld is provided at a central portion of an overlapping portion of the two test sample plates.
4. The weld strength test apparatus of claim 2, wherein the first clamping assembly and the second clamping assembly each include a shear block for securing the shear coupon.
5. The weld strength test apparatus of claim 3, wherein the first clamping assembly and the second clamping assembly further comprise a mixing pressure block and a mixing auxiliary block, respectively, the sample plate comprises a vertical plate and a horizontal plate, the mixing pressure block is attached to the vertical plate, one end of the mixing auxiliary block is attached to the horizontal plate, and the other end of the mixing auxiliary block is connected to the chuck.
6. The solder joint strength test device of claim 2, wherein the first clamping assembly and the second clamping assembly each comprise a plurality of tension press blocks and tension auxiliary blocks, the tension press blocks are disposed at four corners of the tension test piece, the tension auxiliary blocks comprise clamping portions and fixing portions, the clamping portions are used for fixing the tension test piece, and the fixing portions are used for connecting the chuck.
7. The welding spot strength test device according to claim 1, wherein the connection structure comprises a plurality of through holes and shoulder screws disposed in the through holes, the side surface of the chuck is provided with screw holes, and the shoulder screws pass through the through holes and are movably connected with the screw holes.
8. The weld strength test apparatus of claim 1, wherein the mounting structure includes a plurality of fixing holes and bolts disposed in the fixing holes, the bolts passing through the fixing holes to fix the test piece to the clamping assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120763938.4U CN215065764U (en) | 2021-04-13 | 2021-04-13 | Welding spot strength test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120763938.4U CN215065764U (en) | 2021-04-13 | 2021-04-13 | Welding spot strength test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215065764U true CN215065764U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120763938.4U Active CN215065764U (en) | 2021-04-13 | 2021-04-13 | Welding spot strength test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215065764U (en) |
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2021
- 2021-04-13 CN CN202120763938.4U patent/CN215065764U/en active Active
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