CN205236695U - Crooked special mould of improved generation thin -wall tube - Google Patents
Crooked special mould of improved generation thin -wall tube Download PDFInfo
- Publication number
- CN205236695U CN205236695U CN201521060951.4U CN201521060951U CN205236695U CN 205236695 U CN205236695 U CN 205236695U CN 201521060951 U CN201521060951 U CN 201521060951U CN 205236695 U CN205236695 U CN 205236695U
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- die wheel
- pipe
- wheel
- decide
- cover half
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Abstract
The utility model discloses a crooked special mould of improved generation thin -wall tube, including the platform, decide die wheel, move die wheel, clamp splice, U -shaped lever, decide die wheel and pass through the bolt fastening and on the platform, move die wheel and decide the die wheel level and mate, through pivort fixation in U -shaped lever front end U -shaped frame, the front end of U -shaped frame and decide die wheel's fixing bolt swing joint, its characterized in that, the recess that moves die wheel is the ban tuo circular recess. The utility model discloses to move the die wheel recess and design into semiellipse shape, and correspond with the semicircular groove who decides die wheel, when the pipe bending deformation, the pipe receives power inboard and two orientations of the oval cambered surface in the outside, three masterpiece with down, the pipe homogeneous deformation is controlled to salient surplus outside oriented outside the pipe, prevents effectively that the pipe from bending flatly, has guaranteed the circularity of return bend. Simultaneously this bending mould has removed from and has irritated sand work, has improved the work efficiency, has reduced intensity of labour.
Description
Technical field
The utility model relates to the bending particular manufacturing craft of a kind of thin-wall pipe, the bending particular manufacturing craft of modified thin-wall pipe that particularly a kind of bending radius is little.
Background technology
Existing bending machine is made up of platform, cover half wheel, dynamic model wheel, fixture block, U-shaped lever, cover half wheel is bolted on platform, dynamic model wheel and the pairing of cover half wheel level, be fixed in lever front end U-shaped frame by bearing pin, and the front end of U-shaped frame is flexibly connected with the set bolt of cover half wheel. Dynamic model wheel forms bend pipe mould with the Baltimore groove corresponding formation circular die hole of cover half wheel end face. Thin-walled tube sweep is placed in to the circular groove between cover half wheel and dynamic model wheel, and rear portion is fixed with fixture block, when horizontal direction is pulled lever, dynamic model wheel just compresses thin-walled tube, by rolling compaction forward, force thin-walled tube brake forming, such as typical hot blast comb is made. Hot blast comb is a kind of large-scale heat exchanger, is made up of multilayer comb, is bent and forms by heat exchanger fixed length by one or more pipe. Because tube wall is thinner, pipe is subject to the power of inner side and two sides in outside, and pressure to both sides expansion and easy curved flat, scraps pipe. Particularly design the pipe fitting that bending radius is little, more easily curved flat, although take to manage the measure of interior filling sand, curved flat phenomenon happens occasionally. In addition, bend in process, thin, the inner side of the outer layback of tube wall is wrinkling serious and can not ensure the circularity of bend pipe cannot meet bending quality requirement sometimes.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide the bending particular manufacturing craft of a kind of modified thin-wall pipe, bends effectively control crooked position distortion in process, and need not fill with sand at pipe fitting, just can solve curved flat, the circularity problem of pipe fitting.
For achieving the above object, take following technical scheme: the bending particular manufacturing craft of a kind of modified thin-wall pipe, comprise platform, cover half wheel, dynamic model wheel, fixture block, U-shaped lever, cover half wheel is bolted on platform, dynamic model wheel and the pairing of cover half wheel level, be fixed in U-shaped lever front end U-shaped frame by bearing pin, and the front end of U-shaped frame is flexibly connected with the set bolt of cover half wheel, it is characterized in that, the groove of dynamic model wheel is half elliptic groove.
The utility model has improved the pass design of pipe bender die, dynamic model is taken turns to groove design and become half elliptic, corresponding with the semi-circular recesses of cover half wheel, its advantage is: in the time that tube bending is out of shape, pipe is subject to the power of the oval cambered surface both direction in inner side and outside, under three power effects, there is outwardly surplus in pipe outside, control pipe homogeneous deformation, effectively prevent that pipe is curved flat, ensured the circularity of bend pipe. This bend pipe mould has been removed the work of filling sand from simultaneously, has improved work efficiency, has reduced labour intensity.
Brief description of the drawings
Fig. 1 is the utility model front view.
Fig. 2 is that the utility model uses state top view.
In figure: 1, platform, 2, cover half wheel, 3, bolt, 4, bearing pin, 5, dynamic model wheel, 6, U-shaped lever, 7, half elliptic groove, 8, fixture block, 9, pipe.
Detailed description of the invention
Now by reference to the accompanying drawings the utility model is further described.
Referring to Fig. 1, Fig. 2, the bending particular manufacturing craft of a kind of modified thin-wall pipe, comprise platform 1, cover half wheel 2, dynamic model wheel 5, fixture block 8, U-shaped lever 6, cover half wheel 2 is fixed on platform 1 by bolt 3, dynamic model wheel 5 is taken turns 2 level pairings with cover half, is fixed in U-shaped lever 6 front end U-shaped frames by bearing pin 4, and the front end of U-shaped frame is flexibly connected with the set bolt 3 of cover half wheel 2, it is characterized in that, the groove of dynamic model wheel is half elliptic groove 7.
Embodiment
As shown in Figure 1, be drilled with a hole on platform 1, placing nut is welded and fixed, and bolt 3 is taken turns the fixing cover half wheel 2 of 2 centre bore attaching nuts through cover half. Dynamic model wheel 5 is taken turns 2 level pairings with cover half, and the Baltimore groove that the Baltimore groove that makes dynamic model take turns 5 end faces is taken turns 2 end faces with cover half is corresponding, and the semi-circular groove on cover half wheel 2 and dynamic model are taken turns 5 upside of ellipse shape grooves 7 and formed die hole. Dynamic model wheel 5 is arranged in U-shaped lever 6 front end U-shaped frames, and U-shaped frame is provided with installing hole, and bearing pin 4 is taken turns the fixing dynamic model wheel 5 of 5 centre bores through installing hole, dynamic model, and the front end of U-shaped frame is also provided with installing hole, is flexibly connected with the set bolt 3 of cover half wheel 2.
As shown in Figure 2, adopt the utility model to bend outer diameter D=25mm, pipe thickness is 2.5mm, the circular arc pipe fitting of half circular of radius of curvature R=50mm, pipe 9 sweeps are placed in to the die hole between cover half wheel 2 and dynamic model wheel 5, rear portion is fixing with fixture block 8, while pulling U-shaped lever 6 by horizontal direction shown in arrow, dynamic model wheel 2 just compresses pipe 9, by rolling compaction forward, force pipe 9 brake formings, bend rear pipe 9 circular arc place transition round and smooth, do not occur curved flat, fold, tube wall draws the defects such as thin, and the disposable through ball test that is 16mm by sphere diameter (is made and is required: 80% ± 0.2mm that logical bulb diameter is ips), the pressure of the water pressure test is 1MPa, pressurize 20min, the circular arc section of half circular is all qualified.
Claims (1)
1. the bending particular manufacturing craft of modified thin-wall pipe, comprise platform, cover half wheel, dynamic model wheel, fixture block, U-shaped lever, cover half wheel is bolted on platform, dynamic model wheel and the pairing of cover half wheel level, be fixed in U-shaped lever front end U-shaped frame by bearing pin, the front end of U-shaped frame is flexibly connected with the set bolt of cover half wheel, it is characterized in that, the groove of dynamic model wheel is half elliptic groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521060951.4U CN205236695U (en) | 2015-12-20 | 2015-12-20 | Crooked special mould of improved generation thin -wall tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521060951.4U CN205236695U (en) | 2015-12-20 | 2015-12-20 | Crooked special mould of improved generation thin -wall tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205236695U true CN205236695U (en) | 2016-05-18 |
Family
ID=55935774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521060951.4U Active CN205236695U (en) | 2015-12-20 | 2015-12-20 | Crooked special mould of improved generation thin -wall tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205236695U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786120A (en) * | 2016-12-01 | 2017-05-31 | 国网江苏省电力公司检修分公司 | A kind of down conductor bends apparatus for shaping |
| CN107351365A (en) * | 2017-08-14 | 2017-11-17 | 岳阳高澜节能装备制造有限公司 | A kind of bending and molding device for PVDF pipes |
| CN108213217A (en) * | 2018-03-20 | 2018-06-29 | 安庆三维电器有限公司 | Pipe shaping mould and tooling |
-
2015
- 2015-12-20 CN CN201521060951.4U patent/CN205236695U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786120A (en) * | 2016-12-01 | 2017-05-31 | 国网江苏省电力公司检修分公司 | A kind of down conductor bends apparatus for shaping |
| CN107351365A (en) * | 2017-08-14 | 2017-11-17 | 岳阳高澜节能装备制造有限公司 | A kind of bending and molding device for PVDF pipes |
| CN108213217A (en) * | 2018-03-20 | 2018-06-29 | 安庆三维电器有限公司 | Pipe shaping mould and tooling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |