CN205363680U - Plug welding of test bridging plate cone of friction connects tensile strength's anchor clamps - Google Patents
Plug welding of test bridging plate cone of friction connects tensile strength's anchor clamps Download PDFInfo
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- CN205363680U CN205363680U CN201620100304.XU CN201620100304U CN205363680U CN 205363680 U CN205363680 U CN 205363680U CN 201620100304 U CN201620100304 U CN 201620100304U CN 205363680 U CN205363680 U CN 205363680U
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Abstract
The utility model discloses a plug welding of test bridging plate cone of friction connects tensile strength's anchor clamps, include: go up clamp splice and lower clamp splice, it all is used for the quick -witted solid dress with tensile test to go up the upper end of clamp splice and the lower extreme of lower clamp splice, the lower extreme of going up the clamp splice through first bolt -up on the apron that the plug welding of bridging plate cone of friction connects, the second bolt -up is passed through below the base plate that the plug welding of bridging plate cone of friction connects in the upper end of lower clamp splice, wherein, the apron is located the higher authority of base plate, and the plane of base plate and apron is the cross, utilizes the utility model discloses an anchor clamps can be successful the tensile strength that connects of test bridging plate cone of friction plug welding, can optimize welding process and parameter according to tensile result to improve the quality that the plug welding of bridging plate cone of friction connects.
Description
Technical field
This utility model belongs to Solid-State Welding technical field, relates in particular to a kind of fixture testing lapping plate cone of friction plug welds tensile property.
Background technology
Cone of friction plug welding (FTPW) is Britain's institute of welding novel solid phase joining technique of one based on tradition spin friction weldering exploitation, has unique advantage and application prospect in the underwater steel construction thing reparation such as ocean platform and submarine pipeline.
The ultimate principle of cone of friction plug welding is that the coniform stopper adopting a kind of high speed rotating carries out extrusion friction under axial compressive force effect in the blind hole processed in advance, combined effect due to frictional heat and axial compressive force, stopper end thermoplastic material is in blind hole, ultimately forming friction cone plug welding cell orifice welding point, being overlapped mutually of multiple friction circle tapered plug cell orifices just defines friction stitch welding (FrictionStitchWelding-FSW) technical process.As a Solid-phase welding technology and recovery technique, friction stitch welding has lot of advantages, and such as environmental protection, weldering speed is fast, welding residual stress and distortion is little, welding equipment integrated level high, welding process easily is automated.
Generally speaking, friction stitch welding recovery technique is only applicable to nonpenerative submarine pipeline defect, the method with overlap joint is then needed for running through defect, it is specially and will pass through defect with one piece of cover plate and be completely covered, with stopper, cover plate is welded together with the substrate with defect, thus reaching to repair the purpose running through defect, but it is at present that lapping plate cone of friction plug welding research is relatively fewer, in order to reach better repairing effect, need the bonding strength of plug welds is tested, mainly tensile strength, it is necessary to process special fixture and test.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of fixture testing lapping plate cone of friction plug welds tensile property, lapping plate cone of friction plug welds can be carried out tension test by this fixture, thus testing the tensile strength of lapping plate cone of friction plug welds.
The purpose of this utility model is achieved by following technical proposals.
A kind of fixture testing lapping plate cone of friction plug welds tensile property, including: upper fixture block and lower fixture block, the upper end of described upper fixture block and the lower end of lower fixture block are all for being fixedly mounted with cupping machine；The lower end of upper fixture block is fastened on above the cover plate of lapping plate cone of friction plug welds by the first bolt, the upper end of lower fixture block is fastened on below the substrate of lapping plate cone of friction plug welds by the second bolt, wherein, cover plate is positioned at above substrate, and the plane of substrate and cover plate is decussation.
In technique scheme, described upper fixture block includes: upper clamp holder and upper plate, and upper plate is positioned at above cover plate, and upper clamp holder is perpendicularly fixedly arranged on the center above upper plate, for being fixedly mounted with cupping machine；Described first bolt is symmetrically distributed in the both sides of clamp holder, and wherein, the quantity of the first bolt is 2-4, and the first bolt is through upper plate and cover plate, and fastens with the first nut.
In technique scheme, it is provided with pad between described first nut and cover plate, between the first bolt head and upper plate, is provided with pad.
In technique scheme, described first bolt is distributed along cover plate length direction.
In technique scheme, described lower fixture block includes: lower clamp holder and lower shoe, and lower shoe is positioned at below substrate, and lower clamp holder is perpendicularly fixedly arranged on the center below lower shoe, for being fixedly mounted with cupping machine；Described second bolt is symmetrically distributed in the both sides of lower clamp holder, and wherein, the quantity of the second bolt is 2-4, and the second bolt is through lower shoe and substrate, and fastens with the second nut.
In technique scheme, it is provided with pad between described second nut and substrate, between the second bolt head and lower shoe, is provided with pad.
In technique scheme, described second bolt is along zig directional spreding.
The method of above-mentioned fixture test lapping plate cone of friction plug welds tensile property carries out as steps described below:
Step 1, cover plate is covered band and runs through the thereon of defect, the plane making substrate and cover plate is decussation, carry out cone of friction plug welding with stopper to connect, cover plate is made to weld together with the substrate with defect, after welding, the stopper part being exposed to outside cover plate is cut away, and cutting section is polished flat；
Step 2, with above-mentioned clamp lapping plate cone of friction plug welds, wherein, by the first bolt and coordinating of the first nut the lower end of upper fixture block being fastened on above the cover plate of lapping plate cone of friction plug welds, by the second bolt and coordinating of the second nut the upper end of lower fixture block being fastened on below the substrate of lapping plate cone of friction plug welds, after completing, the lower end of the upper end of upper fixture block and lower fixture block is installed on cupping machine, carries out tension test.
In described step 2, by the first bolt and coordinating of the first nut the upper plate of upper fixture block being fastened on above the cover plate of lapping plate cone of friction plug welds, upper clamp holder is installed on cupping machine.
In described step 2, by the second bolt and coordinating of the second nut the lower shoe of lower fixture block being packed in below the substrate of lapping plate cone of friction plug welds, lower clamp holder is installed on cupping machine.
Compared to prior art, fixture of the present utility model can successfully test the tensile property of lapping plate cone of friction plug welds, according to drafting results energy optimizing welding process and parameter, thus improving the quality of lapping plate cone of friction plug welds.
Accompanying drawing explanation
Fig. 1 is the front view of the fixture of test lapping plate cone of friction plug welds tensile property of the present utility model；
Fig. 2 is the top view of the fixture of test lapping plate cone of friction plug welds tensile property of the present utility model；
Fig. 3 is the schematic diagram after lapping plate cone of friction plug welding has been welded；
Fig. 4 is the schematic diagram after unnecessary stopper is excised and polishes flat by lapping plate cone of friction plug welding postwelding；
Fig. 5 be with clamp lapping plate cone of friction plug welds of the present utility model after structural representation.
Wherein, 1 is lower fixture block, and 2 is the second bolt, and 3 is upper fixture block, and 4 is cover plate, and 5 is substrate, and 6 is the second nut, and 7 is the first nut, and 8 is the first bolt, and 9 is pad.
Detailed description of the invention
The high-power FHPP/FTPW principle prototype system welding of domestic first set developed by University Of Tianjin Tianjin modern times interconnection technique key lab for the lapping plate cone of friction plug welds tested in embodiment of the present utility model obtains.This system is formed by welding main shaft, hydraulic power unit and electric-control system three part.The important technological parameters of model machine is above other equipment in current open source information, particularly as follows: maximum speed of spindle 8000rpm, maximum axial pressure 60kN, max. output torque 140Nm, equipment general power 93kW.
In this utility model, determined the material of upper fixture block and lower fixture block and concrete size by strength check；The material of the first bolt and the second bolt and concrete size is determined by strength check；Quality is taked to upper fixture block and lower fixture block size, form and position tolerance polish to ensure crudy.Cover plate involved in embodiment of the present utility model and baseplate material are X65 pipeline steel, wherein, the size of the cover plate is 110mm (length) × 50mm (width) × 15mm (height), substrate is of a size of 110mm (length) × 50mm (width) × 22mm (height), selects X65 pipeline steel as stopper material.
Below in conjunction with drawings and Examples, the fixture of test lapping plate cone of friction plug welds tensile property of the present utility model is described in detail.
Embodiment 1
Such as Fig. 1, shown in 2 and 5, a kind of fixture testing lapping plate cone of friction plug welds tensile property, including: upper fixture block 3 and lower fixture block 1, upper fixture block includes: upper clamp holder and upper plate, upper plate is positioned at above cover plate 4, upper clamp holder is perpendicularly fixedly arranged on the center above upper plate, for being fixedly mounted with cupping machine；2 the first bolts along the distribution of cover plate length direction are symmetricly set on the both sides of upper clamp holder, wherein, first bolt traverse upper plate and cover plate, and fasten with the first nut, each first bolt 8 fastens with 2 the first nuts 7, be provided with pad between first nut and the cover plate of the top, between lower end and the upper plate of the first bolt head, be provided with pad 9, it is prevented that in stretching experiment process damage cover plate or on fixture block.Lower fixture block includes: lower clamp holder and lower shoe, and lower shoe is positioned at below substrate 5, and lower clamp holder is perpendicularly fixedly arranged on the center below lower shoe, for being fixedly mounted with cupping machine；2 the second bolts arranged along zig direction are symmetrically distributed in the both sides of lower clamp holder, wherein, second bolt traverse lower shoe and substrate, and fasten with the second nut 6, each second bolt fastens with the second nut, it is provided with pad between the second nut and substrate topmost, is provided with pad between the second bolt head and lower shoe, it is prevented that damaged substrate or lower fixture block in stretching experiment process.Wherein, cover plate is positioned at above substrate, and the plane of substrate and cover plate is decussation.
The method of above-mentioned fixture test lapping plate cone of friction plug welds tensile property carries out as steps described below:
Step 1, cover plate is covered band and runs through the thereon of defect, the plane making substrate and cover plate is decussation (the two is 90 °), before welding, on the cover board process consent (blind hole) in advance, ensure that the stopper being arranged on first set high-power FHPP/FTPW principle prototype system welding main tapping and the consent on mother metal to be welded (cover plate) keep higher axiality by careful centering link.Carry out cone of friction plug welding to connect, with stopper, cover plate is welded together with the substrate with defect, as it is shown on figure 3, the welding parameter of lapping plate cone of friction plug welding is as shown in table 1 after having welded.After welding, mother metal is taken out and then cut away with abrasive machine, and surface of test piece is processed smooth, obtain lapping plate cone of friction plug welding welding point as shown in Figure 4.
Step 2, with above-mentioned clamp lapping plate cone of friction plug welds (lapping plate cone of friction plug welding welding point), wherein, by the first bolt and coordinating of the first nut the upper plate of upper fixture block being fastened on above the cover plate of lapping plate cone of friction plug welds, upper clamp holder is installed on cupping machine.By the second bolt and coordinating of the second nut the lower shoe of lower fixture block being packed in below the substrate of lapping plate cone of friction plug welds, lower clamp holder is installed on cupping machine.After completing, the structure shown in Fig. 5 is installed on the chuck of cupping machine and carries out tension test.
Table 1 cone of friction plug welding welding parameter
Be can determine whether the tensile property of lapping plate cone of friction plug welds by tension test, if stretch eventual failure on the stopper of cover plate and substrate faying face or cover plate be pulled off, illustrate that the tensile property of joint reaches requirement, welding parameter is reasonable；If stopper is extracted by entirety, illustrating that joint tensile property can not reach requirement, welding parameter is unreasonable.Stretch test result is as shown in table 2.
Table 2 stretch test result
| Specimen coding | Rotating speed/rpm | Upsetting force/kN | Tensile strength/MPa | Fracture position |
| 1 | 4000 | 30 | 324 | Stopper is pulled out |
| 2 | 5000 | 35 | 541 | Stopper |
| 3 | 6000 | 40 | 528 | Stopper |
| 4 | 7000 | 20 | 416 | Stopper is pulled out |
| 5 | 7000 | 30 | 531 | Stopper |
| 6 | 7000 | 40 | 506 | Stopper |
| 7 | 7000 | 50 | 512 | Cover plate is pulled off |
Being drawn by result of the test, the tensile property of lapping plate cone of friction plug welds is had a great impact by welding rotating speed and top pressure, and when rotating speed is relatively low, stopper is pulled out, and illustrates that stopper is not connected very well with mother metal, and welding parameter is unreasonable；When rotating speed is significantly high, top pressure is less, stopper is also pulled out, and illustrates that such welding parameter is unreasonable equally.
The fixture energy Validity Test lapping plate cone of friction plug welds tensile property of the test lapping plate cone of friction plug welds tensile property of this utility model institute utility model, use the fixture of test lapping plate cone of friction plug welds tensile property of the present utility model, the performance of examination lapping plate cone of friction plug welds can be done deeply concrete analysis in conjunction with Analysis on Microstructure.
Above this utility model has been done exemplary description; should be noted that; when without departing from core of the present utility model, any simple deformation, amendment or other those skilled in the art can not spend the equivalent replacement of creative work to each fall within protection domain of the present utility model.
Claims (7)
1. the fixture testing lapping plate cone of friction plug welds tensile property, it is characterised in that including: upper fixture block and lower fixture block, the upper end of described upper fixture block and the lower end of lower fixture block are all for being fixedly mounted with cupping machine；The lower end of upper fixture block is fastened on above the cover plate of lapping plate cone of friction plug welds by the first bolt, the upper end of lower fixture block is fastened on below the substrate of lapping plate cone of friction plug welds by the second bolt, wherein, cover plate is positioned at above substrate, and the plane of substrate and cover plate is decussation.
2. the fixture of test lapping plate cone of friction plug welds tensile property according to claim 1, it is characterized in that, described upper fixture block includes: upper clamp holder and upper plate, upper plate is positioned at above cover plate, upper clamp holder is perpendicularly fixedly arranged on the center above upper plate, for being fixedly mounted with cupping machine；Described first bolt is symmetrically distributed in the both sides of clamp holder, and wherein, the quantity of the first bolt is 2-4, and the first bolt is through upper plate and cover plate, and fastens with the first nut.
3. the fixture of test lapping plate cone of friction plug welds tensile property according to claim 2, it is characterised in that be provided with pad between described first nut and cover plate, be provided with pad between the first bolt head and upper plate.
4. the fixture of test lapping plate cone of friction plug welds tensile property according to claim 3, it is characterised in that described first bolt is distributed along cover plate length direction.
5. the fixture of test lapping plate cone of friction plug welds tensile property according to claim 4, it is characterized in that, described lower fixture block includes: lower clamp holder and lower shoe, lower shoe is positioned at below substrate, lower clamp holder is perpendicularly fixedly arranged on the center below lower shoe, for being fixedly mounted with cupping machine；Described second bolt is symmetrically distributed in the both sides of lower clamp holder, and wherein, the quantity of the second bolt is 2-4, and the second bolt is through lower shoe and substrate, and fastens with the second nut.
6. the fixture of test lapping plate cone of friction plug welds tensile property according to claim 5, it is characterised in that be provided with pad between described second nut and substrate, be provided with pad between the second bolt head and lower shoe.
7. the fixture of test lapping plate cone of friction plug welds tensile property according to claim 6, it is characterised in that described second bolt is along zig directional spreding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620100304.XU CN205363680U (en) | 2016-02-01 | 2016-02-01 | Plug welding of test bridging plate cone of friction connects tensile strength's anchor clamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620100304.XU CN205363680U (en) | 2016-02-01 | 2016-02-01 | Plug welding of test bridging plate cone of friction connects tensile strength's anchor clamps |
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|---|---|
| CN205363680U true CN205363680U (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620100304.XU Expired - Fee Related CN205363680U (en) | 2016-02-01 | 2016-02-01 | Plug welding of test bridging plate cone of friction connects tensile strength's anchor clamps |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538193A (en) * | 2016-02-01 | 2016-05-04 | 天津大学 | Fixture and method for testing tensile property of friction taper plug welding head for lapping plate |
| CN112393974A (en) * | 2020-12-14 | 2021-02-23 | 长春工业大学 | Cross fixture device based on survey does not have rivet joint tensile strength |
-
2016
- 2016-02-01 CN CN201620100304.XU patent/CN205363680U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538193A (en) * | 2016-02-01 | 2016-05-04 | 天津大学 | Fixture and method for testing tensile property of friction taper plug welding head for lapping plate |
| CN112393974A (en) * | 2020-12-14 | 2021-02-23 | 长春工业大学 | Cross fixture device based on survey does not have rivet joint tensile strength |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20180201 |