CN201618934U - Welding positioner of thin-wall rectangular type section - Google Patents
Welding positioner of thin-wall rectangular type section Download PDFInfo
- Publication number
- CN201618934U CN201618934U CN2009202973306U CN200920297330U CN201618934U CN 201618934 U CN201618934 U CN 201618934U CN 2009202973306 U CN2009202973306 U CN 2009202973306U CN 200920297330 U CN200920297330 U CN 200920297330U CN 201618934 U CN201618934 U CN 201618934U
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- thin
- section bar
- pull bar
- welding
- class section
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Abstract
The utility model discloses a welding positioner of a thin-wall rectangular type section, which is provided with a pull rod (3) capable of being inserted into an inner hollow cavity of the thin-wall rectangular type section; one end of the pull rod (3) is fixedly connected with a fixed wedge (6), and the other end thereof is connected with a sliding wedge (2) by a butterfly nut; and a rod body of the pull rod (3) is movably connected with two extending core molds (4) embedded into the rod body of the pull rod (3). The welding positioner uses the extending force of the two extending core molds to overcome part deformation caused by welding stress, avoids the deformation of welding parts of the thin-wall rectangular type section due to welding shrinkage and deformation, and simply and skillfully solves the problems that the welding parts generate radial shrinkage due to expansion on heating and contraction on cooling and a positioning core shaft is difficult to take out.
Description
Technical field
The utility model relates to a kind of adjustable locator that welds small size thin-walled rectangle section bar.
Background technology
At present cross sectional dimensions is less than 50mm * 20mm, and wall thickness is less than 2mm, and length is greater than the small size thin-walled rectangle section bar of 1000mm, because self length is longer relatively, section bar body rigidity is relatively poor.Usually requiring two weld seams when welding is continuous welding, the required precision of welding opposite joint is higher relatively, especially the rectangle section bar that the perpendicularity of section bar is had 0.1～0.2 required precision, because the inner remaining more internal stress of postwelding section bar, and very easily cause the distortion of postwelding section bar, can't meet the requirements of size and precision.For addressing these problems, prior art for preventing the influence of welding contraction distortion to the perpendicularity of rectangle class thin-wall section, adopts mandrel size and the roughly the same positioning core axle of rectangle internal diameter to the welding of rectangle class thin-wall section usually, type in location, rectangle section bar hollow, rectangular chamber is proofreaied and correct perpendicularity.Because tending to produce, the influence of being expanded with heat and contract with cold, rectangle class thin-wall section radially contracted.This fixed positioning core axle, after the section bar welding was radially contracted, postwelding often needed to proofread and correct, and difficult quality guarantee.Because the release of post-weld stress causes part deformation, take out very difficultly, even can't take out.The welding of such section bar part is a difficult point always.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist at prior art, provide a kind of easy to use, simple to operate, can be within the specific limits fast, accurate adjustable thin-walled rectangle class section bar welded retainer, take out difficult problem to solve rectangle class thin-walled parts welded retainer.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of thin-walled rectangle class section bar welded retainer, has a pull bar that can insert thin-walled rectangle class section bar hollow cavity, it is characterized in that, end at described pull bar is fixedly connected with fixedly voussoir, the other end is connected with sliding wedge by wing nut, on the shaft of described pull bar, be connected with the spreading core of two embedding pull bar bodies of rod.
The utility model has following beneficial effect than prior art.
The utility model screws wing nut the voussoir drive spreading core at pull bar two ends is moved along the elongated slot direction of opening on it by being contained in the two ends V-arrangement voussoir of shape in the section bar respectively, has increased rectangle class thin-wall section certain rigid.Spreading power with two spreading cores overcomes the part deformation that welding stress causes, has avoided the influence of welding contraction distortion to the perpendicularity of rectangle class thin-wall section, has reduced the distortion of soldering part.Simply and dexterously solved soldering part and expanded with heat and contract with cold, produced and radially contracted, positioning core axle takes out the problem of difficulty.The utility model version is simple and practical, and is easy to operate, safe and efficient, with short production cycle, and for improving welding quality and operating efficiency rate, satisfying the welding precision requirement provides reliable assurance.Can be widely used in the welding of all kinds of small size rectangular class section bar parts.
Description of drawings
Fig. 1 is the structure perspective view of the utility model thin-walled rectangle class section bar welded retainer.
Fig. 2 is the decomposing schematic representation of Fig. 1.
Among the figure: 1 wing nut, 2 sliding wedges, 3 pull bars, 4 spreading cores, 5 trip bolts, 6 fixing voussoirs, 7 straight pins.
The specific embodiment
In Fig. 1, Fig. 2, described thin-walled rectangle class section bar welded retainer, it has a pull bar 3 that can insert thin-walled rectangle class section bar hollow cavity.One end of pull bar 3 is fixedly connected with fixedly voussoir 6, pull bar 3 and fixedly voussoir 6 link together by straight pin 7.The logical thread spindle that extends vertically that is shaped on of the other end.Connect by wing nut 1 on this thread spindle, sliding wedge 2 is actively set on the thread spindle of pull bar 3 by wing nut 1.Above-mentioned voussoir can be a V-type circular arc location voussoir.The V-type location voussoir that is positioned at pull bar 3 two ends is symmetrical in opposite directions.On the shaft of described pull bar 3, be connected with the spreading core 4 of two embedding pull bar 3 bodies of rod.Spreading core 4 has and the consistent rectangular through slot of described pull bar 3 body of rod shapes, and rectangular through slot is embedded on the shaft of the pull bar 3 rectangle bodies of rod.Two spreading cores 4 are connected in the screw of pull bar 3 by the strip hole greater than trip bolt 5 on this spreading core block.Having fixedly, the pull bar 3 of voussoir 6 is inserted in the thin-walled rectangle class section bar hollow cavity.Sliding wedge 2 connects wing nut 1 by the thread spindle on pull bar 3 end faces.Screw the V-type location voussoir that wing nut 1 makes the pull bar two ends, drive the elongated slot direction that the spreading core opens on 4 along its and move, reduce the distortion of soldering part with the tension of its generation.
Claims (6)
1. thin-walled rectangle class section bar welded retainer, has a pull bar (3) that can insert thin-walled rectangle class section bar hollow cavity, it is characterized in that, end at described pull bar (3) is fixedly connected with fixedly voussoir (6), the other end is connected with sliding wedge (2) by wing nut, on the shaft of described pull bar (3), be connected with the spreading core (4) of two embedding pull bars (3) body of rod.
2. thin-walled rectangle class section bar welded retainer as claimed in claim 1 is characterized in that, described voussoir is a V-type circular arc location voussoir.
3. thin-walled rectangle class section bar welded retainer as claimed in claim 1 or 2 is characterized in that, the V-type location voussoir that is positioned at pull bar (3) two ends is symmetrical in opposite directions.
4. thin-walled rectangle class section bar welded retainer as claimed in claim 1 is characterized in that spreading core (4) has and the consistent rectangular through slot of described pull bar (3) body of rod shape, and this rectangular through slot is embedded on the shaft of pull bar (3) the rectangle body of rod.
5. thin-walled rectangle class section bar welded retainer as claimed in claim 1 is characterized in that, two spreading cores (4) by on self spreading core block greater than the strip hole of trip bolt (5), be connected in the screw of pull bar (3).
6. thin-walled rectangle class section bar welded retainer as claimed in claim 1 is characterized in that, having fixedly, the pull bar (3) of voussoir (6) is inserted in the thin-walled rectangle class section bar hollow cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202973306U CN201618934U (en) | 2009-12-17 | 2009-12-17 | Welding positioner of thin-wall rectangular type section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202973306U CN201618934U (en) | 2009-12-17 | 2009-12-17 | Welding positioner of thin-wall rectangular type section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201618934U true CN201618934U (en) | 2010-11-03 |
Family
ID=43022392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202973306U Expired - Lifetime CN201618934U (en) | 2009-12-17 | 2009-12-17 | Welding positioner of thin-wall rectangular type section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201618934U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990276A (en) * | 2012-11-30 | 2013-03-27 | 航宇救生装备有限公司 | Adjustable inner circle stretcher |
| CN113084406A (en) * | 2021-04-15 | 2021-07-09 | 常州机电职业技术学院 | Backing weld welding position frock |
-
2009
- 2009-12-17 CN CN2009202973306U patent/CN201618934U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990276A (en) * | 2012-11-30 | 2013-03-27 | 航宇救生装备有限公司 | Adjustable inner circle stretcher |
| CN102990276B (en) * | 2012-11-30 | 2015-07-08 | 航宇救生装备有限公司 | Adjustable inner circle stretcher |
| CN113084406A (en) * | 2021-04-15 | 2021-07-09 | 常州机电职业技术学院 | Backing weld welding position frock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101103 |
|
| CX01 | Expiry of patent term |