CN208083665U - The prestress clamp that workpiece deforms is prevented based on agitating friction welding - Google Patents
The prestress clamp that workpiece deforms is prevented based on agitating friction welding Download PDFInfo
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- CN208083665U CN208083665U CN201820535936.8U CN201820535936U CN208083665U CN 208083665 U CN208083665 U CN 208083665U CN 201820535936 U CN201820535936 U CN 201820535936U CN 208083665 U CN208083665 U CN 208083665U
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- China
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- workpiece
- jack
- pressing plate
- cross members
- english truss
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- 238000003466 welding Methods 0.000 title claims abstract description 30
- 238000003825 pressing Methods 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 239000011324 bead Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model discloses a kind of prestress clamp for preventing workpiece from deforming based on agitating friction welding, the support end of the top of English truss as jack；To ensure the stability of English truss, base cross members are designed in bottom, maintain the structural intergrity of former triangle.Base cross members medium design has trepanning, and it is trapezoidal that hole, which uses truncated cone-shaped, section, ensures that very heavy propulsion arm can apply secondary prestress to the pressing plate under base cross members.The push rod front end of jack is designed using round platform, ensures that the power being applied on pressing plate not will produce excessive stress concentration, and expand forced area to a certain extent.Pressing plate is positioned between two pedestals arch, is located at the underface of base cross members, separation design.The effect of metal gasket be avoid because workpiece to be welded too it is thick cause set screw to fix pedestal after so that larger shifts up is generated in the middle part of pressing plate.The knowledge of the subjects such as the utility model combination mechanics and machinery solves the problems, such as the welding flexural deformation of workpiece after agitating friction welding, improves workpiece quality.
Description
Technical field
The utility model belongs to engineering manufacturing technology field, more particularly to prevents workpiece from deforming based on agitating friction welding
Prestress clamp.
Background technology
Currently, agitating friction welding technique has begun to be applied to every field, but due to the thickness of part welding workpiece
It than relatively thin, pressurizeed, fixed to it according to conventional method, workpiece can be caused along bead direction shape of a saddle welding occur curved
Song deformation, usually weld flexural deformation phenomenon deformation maximum be happened at workpiece stage casing, this is because pressing plate to workpiece among
The prestressing force that position applies is too small caused.Common method mentioned here is referred to is placed in workpiece by long pressing plate along bead direction
Surface, and certain distance is kept with weld seam, then pressurizeed to it with short pressing plate.Due to short pressing plate limited length, if welding
It is difficult to pressurize to position among long pressing plate compared with machining long workpieces.Also, even if short pressing plate meets length requirement, but by screw institute
The pressure brought is to pass to long pressing plate as the arm of force by short pressing plate, in the welding process, since position is welded among workpiece
Flexural deformation is connect, short pressing plate also will produce deformation as the arm of force, influence clamping effect.Accordingly, it is difficult to prevent welding flexural deformation
The generation of phenomenon.
Based on the mode for being stressed directly, pressurizeing, prevent workpiece from deforming based on agitating friction welding set forth herein a kind of
Prestress clamp.The welding flexural deformation that postwelding workpiece can be effectively reduced even completely eliminates welding flexural deformation phenomenon.
Utility model content
Problem to be solved in the utility model is how to design pre- the answering for preventing workpiece deformation welded based on agitating friction
Power fixture goes to solve the problems, such as that workpiece welds flexural deformation in stir friction welding process.
The technical solution of the utility model：
The prestress clamp that workpiece deforms, two prestress clamps is prevented to be symmetrically positioned in the first work based on agitating friction welding
10 both sides of weld seam that part 9 and second workpiece 12 are formed, including English truss, jack, pressing plate 4, metal gasket 6；
The English truss is an isosceles triangle, including English truss top 1, supporting rack 2, positioning base 5 and bottom
Portion's crossbeam 7, English truss top 1, supporting rack 2, positioning base 5, base cross members 7 are that non-dismountable formula is fixedly connected；Described three
Angle truss top 1 is used to fix jack, and as the support end of jack；Supporting rack 2 is symmetrical as two sides of English truss
Arrangement, the pressure for bearing the application of jack pair English truss 1；Positioning base 5 is arch, hole rectangular cross-section, both ends
It is arranged symmetrically bolt hole 11, centre may pass through pressing plate 4；Base cross members 7 connect two positioning bases 5, are provided with cut among it
Face is trapezoidal hole 8；
The jack includes jack main body 3, push rod 14 and handle 15；Jack main body 3 is fixed on English truss
The lower end on top 1 is prevented because centre generates upward displacement when pressing plate both ends pressurize fixed, cannot be effective so as to cause intermediate position
The problem of pressurization to workpiece；14 top of push rod is round platform, avoids larger stress concentration occur with 4 contact position of pressing plate；It pushes away
Bar 14 is located at the front end of jack main body 3, the top in hole 8；Handle 15 controls jack pressure；
The base cross members 7 of the pressing plate 4 and English truss are separation design, and thickness is about 15 millimeters, width with it is fixed
Position 5 intermediate arch span of pedestal is consistent；
Described 6 intermediate trepanning of the metal gasket design, may pass through the bolt 13 for being positioned to positioning base, when waiting for
Welding workpiece thickness is positioned over the underface of positioning base 5 when being higher by the reserved height of positioning base 5, it is therefore an objective to use bolt pair
Positioning base 5 prevents 5 bottom of positioning base from vacantly generating moderate finite deformation when being fixed.
The beneficial effects of the utility model：
1. taking full advantage of the stability of triangle, triangular base crossbeam 7 both ensure that very heavy by the way of trepanning
The movement of propulsion arm in turn ensures the stability of English truss；
2. innovative is applied to jack in prestress clamp；
3. by applying secondary prestress to former pressing plate 4, further limitation pressing plate 4 deformation of itself had both been avoided because of pressure
4 both ends of plate, which are pressurized, causes shifting up for itself middle section generation, and can limit the welding flexural deformation of workpiece 9 and workpiece 12
Deformation.To solve the problems, such as that workpiece is welding the welding flexural deformation generated after the completion.
Description of the drawings
Fig. 1 is welding pressure process schematic diagram (for ease of illustrating, being not drawn into about the symmetrical fixture of weld seam).
Fig. 2 is the front view of the prestress clamp for preventing workpiece from deforming welded based on agitating friction.
Fig. 3 is the welding flexural deformation phenomenon schematic diagram that common method of clamping generates
In figure：1 English truss top；2 supporting racks；3 jack main bodys；4 pressing plates；5 positioning bases；6 metal gaskets；7 bottoms
Crossbeam；8 trepannings；9 first workpiece；10 weld seams；11 bolts hole；12 second workpieces；13 bolts；14 push rods；Handle 15.
Specific implementation mode
Below in conjunction with attached drawing and technical solution, specific embodiment of the present utility model is further illustrated.
The prestress clamp that workpiece deforms is prevented based on agitating friction welding.It is as shown in Figure 1 welding pressure process.For
Convenient for expressing the fixture only drawn in Fig. 1 on second workpiece 12, in fact, same fixture is installed on the first workpiece 9, with weldering
Seam 10 is arranged symmetrically for symmetry axis with the fixture on workpiece 12.Before being stirred friction welding, the first workpiece 9 for first handling well
It is stitched together with second workpiece 12, makes the two slitless connection.It is after the completion of docking that pressing plate 4 is symmetrically placed in first along weld seam 10
On workpiece 9 and second workpiece 12；Then the positioning base 5 of fixture (English truss) bottom is fixed by bolt hole 11,
It is required that be that the front end face of positioning base 5 and weld seam 10 are located in same horizontal line, final effect is, two prestress clamps are determined
Position pedestal end face is in contact on the extended line of weld seam.When the first workpiece 9 to be welded and 12 thickness of second workpiece are more than positioning bottom
When the reserved thickness of seat 5, needs to use metal gasket 6,13 stress of bolt is reduced by being placed on the underface of positioning base 5
The excessive deformation of Shi Yinqi pedestals.But ensure after applying metal gasket 6, positioning base 5 should ensure that there are 3- with metal gasket 6
4 millimeters of gap, it is therefore an objective to prestressing force caused by bolt 13 can be passed to pressing plate 4, to realize to the first workpiece 9 and second
The clamping of workpiece 12.
After the completion of positioning, jack is controlled by handle 15 and generates lower pressure, the push rod of wherein jack passes through bottom transverse
Truncated cone-shaped trepanning 8 on beam 7 and by pressure transmission to the intermediate position of pressing plate 4, the wherein top of push rod 14 is designed for round platform, this
Effectively prevent excessive stress concentration phenomenon.Stirring-head can be in the area between the base cross members 7 of two fixtures in welding process
Domain is welded along weld seam 10, dismountable after workpiece cooling after the completion of welding.Since the middle part to workpiece 4 has carried out secondary add
Pressure largely avoids the interlude caused by 4 both ends of workpiece are pressurizeed and generates upward deformation.And further by thousand
The pressure transmission on jin top gives the first workpiece 9 and second workpiece 12, to eliminate the welding flexural deformation phenomenon of postwelding workpiece.
The above is specific embodiment of the present utility model, it is noted that for the ordinary skill of the art
For personnel, under the premise of not departing from the technical principle of the utility model, some improvements and modifications can also be made, these change
It is also considered as the scope of protection of the utility model into modification.
Claims (1)
1. a kind of prestress clamp for preventing workpiece from deforming based on agitating friction welding, two prestress clamps are symmetrically positioned in first
Weld seam (10) both sides that workpiece (9) and second workpiece (12) are formed, which is characterized in that the prestress clamp includes triangle purlin
Frame, jack, pressing plate (4), metal gasket (6)；
The English truss is an isosceles triangle, including English truss top (1), supporting rack (2), positioning base (5) and
Base cross members (7), English truss top (1), supporting rack (2), positioning base (5), base cross members (7) are that non-dismountable formula fixes company
It connects；The English truss top (1) is used to fix jack, and as the support end of jack；Supporting rack (2) is used as triangle purlin
Two sides of frame are arranged symmetrically, the pressure for bearing jack pair English truss (1) application；Positioning base (5) is arch,
Both ends are disposed with bolt hole (11), and centre may pass through pressing plate (4)；Base cross members (7) connect two positioning bases (5), among it
Have and is provided with section as trapezoidal hole (8)；
The jack includes jack main body (3), push rod (14) and handle (15)；Jack main body (3) is fixed on triangle
The lower end on truss top (1)；Push rod (14) top is round platform, is located at the front end of jack main body (3), the top of hole (8)；Handle
(15) jack pressure is controlled；
The base cross members (7) of the pressing plate (4) and English truss are separation design, and thickness is about 15 millimeters, width with it is fixed
The intermediate arch span of position pedestal (5) is consistent；
The intermediate trepanning of the metal gasket (6), may pass through the bolt (13) for being positioned to positioning base (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820535936.8U CN208083665U (en) | 2018-04-13 | 2018-04-13 | The prestress clamp that workpiece deforms is prevented based on agitating friction welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820535936.8U CN208083665U (en) | 2018-04-13 | 2018-04-13 | The prestress clamp that workpiece deforms is prevented based on agitating friction welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208083665U true CN208083665U (en) | 2018-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820535936.8U Expired - Fee Related CN208083665U (en) | 2018-04-13 | 2018-04-13 | The prestress clamp that workpiece deforms is prevented based on agitating friction welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208083665U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108340069A (en) * | 2018-04-13 | 2018-07-31 | 大连理工大学 | The prestress clamp that workpiece deforms is prevented based on agitating friction welding |
-
2018
- 2018-04-13 CN CN201820535936.8U patent/CN208083665U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108340069A (en) * | 2018-04-13 | 2018-07-31 | 大连理工大学 | The prestress clamp that workpiece deforms is prevented based on agitating friction welding |
| CN108340069B (en) * | 2018-04-13 | 2023-10-13 | 大连理工大学 | Prestress clamp for preventing workpiece deformation based on friction stir welding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20181113 Termination date: 20190413 |