CN204996888U - Cold elbow pipe that pushes away - Google Patents
Cold elbow pipe that pushes away Download PDFInfo
- Publication number
- CN204996888U CN204996888U CN201520608738.6U CN201520608738U CN204996888U CN 204996888 U CN204996888 U CN 204996888U CN 201520608738 U CN201520608738 U CN 201520608738U CN 204996888 U CN204996888 U CN 204996888U
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- China
- Prior art keywords
- pipe
- oblique angle
- elbow
- pushing
- pushes away
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000005452 bending Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 6
- 238000007493 shaping process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 201000009240 nasopharyngitis Diseases 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
- Thermal Insulation (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The utility model provides a cold elbow pipe that pushes away, the orificial oblique angle of feed end is 60, pushes away the orificial oblique angle of system end and be 45, and both ends mouth of pipe inclined plane is to crooked lopsidedness, the shortest inflection pipe wall and the longest excurvation pipe wall axial direction parallel, the system that pushes away is held the sharp position in orificial oblique angle to put the level of being equipped with and is pushed away the system terminal surface. The utility model discloses cold elbow pipe that pushes away's beneficial effect lies in: the unloading is accurate, and the material is extravagant few, push away the increase of system terminal surface, the atress is even, prevents effectively that the defect from appearing in shaping elbow surface, has improved the yield.
Description
Technical field
The utility model relates to compression molding field, particularly relates to seamless elbow manufacturing technology.
Background technology
Angle head cold-pushing method for making is at normal temperatures, and adopt special hydraulic press to push in the mould of curved cavity by pipe, pushing forms the method for elbow.
In angle head cold-pushing molding process, because pipe produces flexural deformation in elbow module, under pressure, outside elbow, tube wall is long, and inner side of elbow tube wall is short, and inside swan neck, pipe bent position can cause fold to pile sum overlap.Find in the research of elbow pipe process: if blank overall length is excessive, then waste material, and interior crook fold and overlap more; If blank overall length is too small, then there is no allowance during elbow face work.In order to reduce material consumption, general pipe is processed to oblique angle blank, but if pipe rake angle is excessive or too small, not only can affect long one end, inner side of elbow circular arc one end too short, and the size of plane on blank can be affected, affect the force-bearing situation of blank.The oblique angle of blank upper end, to remove unnecessary material on the one hand, when making to push away o ing, the unlikely heap sum of this place's material is overlapping, being on the other hand to ensure that there is enough large plane the upper end of blank, making punch be applied to the excessive eccentric load of the unlikely generation of power on blank and affecting the normal work of mould; In addition, oblique angle pipe is when pressurized enters mould, and the easy stress deformation in tip, oblique angle, lower end, causes very large impact to yield rate.
Research for bending tube forming has been carried out a lot, technique also comparative maturity, pipe shape also has research, but concrete dimensional parameters during pipe blanking is not also through systematic research, for bend pipe pipe in industrial production, how blanking can play directive function to this problem, thus the utilization rate of material can be improved, reduce production cost.
Summary of the invention
The cold object pushing away elbow pipe of the utility model is to solve in angle head cold-pushing processing and forming, the inaccurate problem of elbow pipe blanking, there is provided that a kind of oblique angle dimensional parameters and oblique angle shape are more reasonably cold pushes away elbow pipe, reduce the shaping consumable quantity of angle head cold-pushing, improve the shaping yield rate of angle head cold-pushing.
To achieve these goals, the technical scheme that the utility model adopts is: blank elbow pipe being cut into Dou Dai oblique angle, two ends, and go out corresponding pushing deflection according to elbow curvature radius calculation, the nozzle distortion surplus brought after making oblique angle pipe just in time can overcome pushing distortion, decrease the follow-up workload to the processing of the elbow mouth of pipe, on the other hand, cut oblique angle and can reduce tubing loss; When cutting elbow pipe, the tip, oblique angle of one end being excised, so that form stress surface, preventing when pushing unbalance stress elbow surface from occurring distortion.
The cold oblique angle pushing away the feed end mouth of pipe of elbow pipe of the utility model is 60 °, the oblique angle of the pushing end mouth of pipe is 45 °, mouth of pipe inclined-plane, two ends is to bending lopsidedness, and the shortest interior bend pipe wall is axially parallel with the longest excurvation tube wall, and the oblique angle apical location of the pushing end mouth of pipe is provided with horizontal pushing end face.
It is 2 degree that the described cold oblique angle pushing away the feed end mouth of pipe of elbow pipe floats.
It is 2 degree that the described cold oblique angle pushing away the pushing end mouth of pipe of elbow pipe floats.
Tip, oblique angle is vertically removed and is formed pushing end face by the described cold pushing end mouth of pipe pushing away elbow pipe, and pushing end face length is 1/6th of the girth of the mouth of pipe.
The described cold elbow radius of curvature pushing away the pushing of elbow pipe is 1.5D or 1D.
The cold beneficial effect pushing away elbow pipe of the utility model is: blanking is accurate, and waste of material is few; Elbow mouth of pipe allowance is few, accelerates operating efficiency; Pushing end face increases, and uniform force, effectively prevents shaping elbow surface from occurring defect, improve yield rate.
Accompanying drawing explanation
Accompanying drawing 1 is the cold configuration schematic diagram pushing away elbow pipe of the utility model;
Accompanying drawing 2 is the cold front view pushing away elbow pipe of the utility model;
Accompanying drawing 3 is the cold side view pushing away elbow pipe of the utility model;
Accompanying drawing 4 is the cold three-dimensional structure schematic diagram pushing away elbow pipe of the utility model;
In accompanying drawing: the pushing end mouth of pipe 1, the feed end mouth of pipe 2, the shortest interior bend pipe wall 3, the longest excurvation tube wall 4, pushing end face 5.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in more detail:
As Figure 1-3, the cold oblique angle pushing away the feed end mouth of pipe 2 of elbow pipe of the utility model is 60 °, the oblique angle of the pushing end mouth of pipe 1 is 45 °, mouth of pipe inclined-plane, two ends is to bending lopsidedness, the shortest interior bend pipe wall 3 is axially parallel with the longest excurvation tube wall 4, and the oblique angle apical location of the pushing end mouth of pipe 1 is provided with horizontal pushing end face 5.
It is 2 degree that the described cold oblique angle pushing away the feed end mouth of pipe 2 of elbow pipe floats.
It is 2 degree that the described cold oblique angle pushing away the pushing end mouth of pipe 1 of elbow pipe floats.
Tip, oblique angle is vertically removed and is formed pushing end face 5 by the described cold pushing end mouth of pipe 1 pushing away elbow pipe, and pushing end face 5 length is 1/6th of mouth of pipe girth.
The described cold elbow radius of curvature pushing away the pushing of elbow pipe is 1.5D or 1D.
Embodiment:
Be illustrated in figure 4 a cold elbow pushing away the pushing of elbow pipe, radius of curvature is 1.5D.Aimed at and put into elbow module by the cold elbow pipe feed end mouth of pipe 2 that pushes away, the shortest interior bend pipe wall 3 and the longest excurvation tube wall 4 and mold slots aligned in position, pressure apparatus acts on the pushing end face 5 of the pushing end mouth of pipe 1, and pipe is pushed mould molding.
Claims (5)
1. one kind coldly pushes away elbow pipe, it is characterized in that: the oblique angle of the feed end mouth of pipe (2) is 60 °, the oblique angle of the pushing end mouth of pipe (1) is 45 °, mouth of pipe inclined-plane, two ends is to bending lopsidedness, the shortest interior bend pipe wall (3) is axially parallel with the longest excurvation tube wall (4), and tip, oblique angle is vertically removed and formed pushing end face (5) by the pushing end mouth of pipe (1).
2. coldly as claimed in claim 1 push away elbow pipe, it is characterized in that: it is 2 degree that the oblique angle of the feed end mouth of pipe (2) floats.
3. coldly as claimed in claim 1 push away elbow pipe, it is characterized in that: it is 2 degree that the oblique angle of the pushing end mouth of pipe (1) floats.
4. coldly as claimed in claim 1 push away elbow pipe, it is characterized in that: the length of pushing end face (5) is 1/6th of mouth of pipe girth.
5. coldly as claimed in claim 1 push away elbow pipe, it is characterized in that: the radius of curvature of push-making angle fitting is 1.5D or 1D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520608738.6U CN204996888U (en) | 2015-08-13 | 2015-08-13 | Cold elbow pipe that pushes away |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520608738.6U CN204996888U (en) | 2015-08-13 | 2015-08-13 | Cold elbow pipe that pushes away |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204996888U true CN204996888U (en) | 2016-01-27 |
Family
ID=55153793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520608738.6U Expired - Fee Related CN204996888U (en) | 2015-08-13 | 2015-08-13 | Cold elbow pipe that pushes away |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204996888U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734438A (en) * | 2017-01-13 | 2017-05-31 | 南昌航空大学 | One kind pushes away o ing method with small curvature bending radius L type thin-wall aluminum alloy bend pipe |
| CN110814121A (en) * | 2019-11-19 | 2020-02-21 | 南昌航空大学 | Small-bending-radius push bending method of small-diameter pipe and small-diameter pipe |
-
2015
- 2015-08-13 CN CN201520608738.6U patent/CN204996888U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734438A (en) * | 2017-01-13 | 2017-05-31 | 南昌航空大学 | One kind pushes away o ing method with small curvature bending radius L type thin-wall aluminum alloy bend pipe |
| CN110814121A (en) * | 2019-11-19 | 2020-02-21 | 南昌航空大学 | Small-bending-radius push bending method of small-diameter pipe and small-diameter pipe |
| CN110814121B (en) * | 2019-11-19 | 2022-03-01 | 南昌航空大学 | Small-bending-radius push bending method of small-diameter pipe and small-diameter pipe |
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Legal Events
| 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 |
Granted publication date: 20160127 |