CN102059514B - Processing method of small-curvature and small-angle bent pipe - Google Patents
Processing method of small-curvature and small-angle bent pipe Download PDFInfo
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- CN102059514B CN102059514B CN 201010556899 CN201010556899A CN102059514B CN 102059514 B CN102059514 B CN 102059514B CN 201010556899 CN201010556899 CN 201010556899 CN 201010556899 A CN201010556899 A CN 201010556899A CN 102059514 B CN102059514 B CN 102059514B
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Abstract
The invention discloses a processing method of a small-curvature and small-angle bent pipe, which is characterized by comprising the following steps of: firstly replacing each straight pipe-section shrimp pipe by a circular-arc section, and segmenting the processed bent pipe into straight-pipe sections; marking a projection center line a, an outer side contour line b1, an inner side contour line b2 and a port line c of each straight pipe-section shrimp pipe for assembling the bent pip by using the processed member on a steel plate platform; sequentially positioning each straight pipe-section shrimp pipe from middle to both sides by using an angle rule; finally welding the neighboring straight pipe-section shrimp pipes in the integrally positioned straight pipe-section shrimp pipes to accomplish the connection between the neighboring straight pipe-section shrimp pipes; and then polishing edges of welding lines into smooth transition. In the method, the plurality of straight pipe-section shrimp pipes replace the circular-arc sections, the assembly of the small-curvature and small-angle bent pipe is accomplished by cutting, scribing and positioning, therefore the method is simple and rapid, and the processed small-curvature and small-angle bent pipe is especially suitable for serving as a transition section at the crossed position of two small-angle steel pipes.
Description
Technical field
The present invention relates to a kind of processing method of small curve low-angle bend pipe.
Background technology
As shown in Figure 1, the small curve low-angle bend pipe in the steel member is meant that generally material is Q345B and following grade, radius of curvature R≤500mm, angle≤50 °, the pipe fitting that in existing bending machine, can not bend.
Existing pipe bending machine can only be processed the bend pipe of radius of curvature R >=1500mm, can't carry out the processing of small curve low-angle bend pipe; Customization must become steel-casting with molten steel casting, but this method cycle is long, expense is high.
Summary of the invention
The present invention is for avoiding above-mentioned existing in prior technology weak point, a kind of processing method of small curve low-angle bend pipe is provided so that in the specific occasion for radius of curvature R≤500mm, the processing of the bend pipe of angle≤50 ° is more quick, low-cost.
The present invention adopts following technical scheme for the technical solution problem:
The design feature of the processing method of small curve low-angle bend pipe of the present invention is to carry out as follows:
A, replace arc section with each straight length dried shrimp pipe, processed bend pipe segmentation is drawn materials is each straight length;
B, for each straight length, the length of cutting away 2mm at left end is as the fit-up gap, and forms flat mouthful of end of left end; Right-hand member cutting at each straight section forms 35 ° of periphery grooves;
C, on plate platform, mark projected centre lines a, outboard wheel profile b1, nearside wheel profile b2 and the port lines c of each the straight length dried shrimp pipe that is used to assemble bend pipe by work piece;
D, utilize angle square that each straight length dried shrimp pipe is positioned toward both sides from middle successively; During the location, aim at port lines with flat mouthful of end, and firm with plate platform spot welding, accomplish the integral body location of each straight length dried shrimp pipe on plate platform according to this, form the fit-up gap between the adjacent straight length dried shrimp pipe;
E is welding on the fit-up gap between the said adjacent straight length dried shrimp pipe for each straight length dried shrimp pipe of integral body location, accomplishes between the adjacent straight length dried shrimp pipe to connect; Again weld seam corner angle are polished into rounding off.
The characteristics of the processing method of small curve low-angle bend pipe of the present invention also are among the said step c, and the mark on plate platform is, at first press the circular arc line, mark each straightway by Along ent again.
Compared with present technology, beneficial effect of the present invention is embodied in:
The present invention replaces arc section with many straight lengths dried shrimp pipe, accomplishes small curve low-angle bend pipe through cutting, line and location assembling, and the inventive method is simple, quick, is particularly suitable for as two low-angle steel pipe intersection changeover portions.
Description of drawings
Fig. 1 is work piece sketch map among the present invention.
Fig. 2 is a light plate platform mark sketch map of the present invention.
Fig. 3 is each straight length dried shrimp pipe location sketch map among the present invention.
Fig. 4 welds sketch map for accomplishing between each straight length dried shrimp pipe among the present invention.
Label among the figure: 1 processed bend pipe, 2 plate platform, a projected centre lines, b1 outboard wheel profile, b2 nearside wheel profile, c port lines, 3 angle squares.
The specific embodiment
The processing method of small curve low-angle bend pipe is to carry out as follows in the present embodiment:
1, replace arc section with each straight length dried shrimp pipe, processed bend pipe 1 segmentation is drawn materials is each straight length;
B, for each straight length, the length of cutting away 2mm at left end is as the fit-up gap, and forms flat mouthful of end of left end; Right-hand member cutting at each straight section forms 35 ° of periphery grooves;
C, as shown in Figure 2 on plate platform 2, marks projected centre lines a, outboard wheel profile b1, nearside wheel profile b2 and the port lines c of each the straight length dried shrimp pipe that is used to assemble bend pipe by work piece; Specifically the mark on plate platform is, at first presses the circular arc line, marks each straightway by Along ent again; The relevant parameter of processed bend pipe 1 shown in Figure 2: R200 is that dried shrimp center line curvature, H are that the location height of right output port, location that L is right output port are wide, the dried shrimp angle is that 35 °, external diameter are that 203mm, wall thickness are 12mm;
D, utilize 3 pairs of each straight length dried shrimp pipes of angle square to position successively toward both sides from middle; During the location, aim at port lines with flat mouthful of end, and firm with plate platform 2 spot welding, accomplish the integral body location of each straight length dried shrimp pipe on plate platform 2 according to this, form the fit-up gap between the adjacent straight length dried shrimp pipe;
E is for each straight length dried shrimp pipe of integral body location; Welding on the fit-up gap between the adjacent straight length dried shrimp pipe; At first accomplish the welding of a side; The weld seam that digs dried shrimp pipe and plate platform spot welding place with carbon then digs, and the dried shrimp pipe is stood up the fit-up gap of the other side of welding, and then accomplishes overall welding; Again weld seam corner angle are polished into rounding off at last.
In the practical implementation, should note:
1, get many straight lengths, corner angle are just more little so as far as possible, cross and get over slyness;
2, guarantee the internal orifice of each straight length, promptly the minor face of straight length also has 2 centimeters length after cutting periphery groove.
Claims (2)
1. the processing method of small curve low-angle bend pipe is characterized in that carrying out as follows:
A, replace arc section with each straight length dried shrimp pipe, processed bend pipe segmentation is drawn materials is each straight length;
B, for each straight length, the length of cutting away 2mm at left end is as the fit-up gap, and forms flat mouthful of end of left end; Right-hand member cutting at each straight section forms 35 ° of periphery grooves;
C, on plate platform, mark projected centre lines a, outboard wheel profile b1, nearside wheel profile b2 and the port lines c of each the straight length dried shrimp pipe that is used to assemble bend pipe by work piece;
D, utilize angle square that each straight length dried shrimp pipe is positioned toward both sides from middle successively; During the location, aim at port lines with flat mouthful of end, and firm with plate platform spot welding, accomplish the integral body location of each straight length dried shrimp pipe on plate platform according to this, form the fit-up gap between the adjacent straight length dried shrimp pipe;
E, for each straight length dried shrimp pipe of integral body location, welding on the fit-up gap between the said adjacent straight length dried shrimp pipe, accomplish between the adjacent straight length dried shrimp pipe and connect; Again weld seam corner angle are polished into rounding off.
2. the processing method of small curve low-angle bend pipe according to claim 1 is characterized in that among the said step c, and the mark on plate platform is, at first presses the circular arc line, marks each straightway by Along ent again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010556899 CN102059514B (en) | 2010-11-24 | 2010-11-24 | Processing method of small-curvature and small-angle bent pipe |
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| CN 201010556899 CN102059514B (en) | 2010-11-24 | 2010-11-24 | Processing method of small-curvature and small-angle bent pipe |
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| CN102059514A CN102059514A (en) | 2011-05-18 |
| CN102059514B true CN102059514B (en) | 2012-05-23 |
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| CN104028954A (en) * | 2014-01-07 | 2014-09-10 | 郑时华 | Manufacturing method of mold jacking pipe |
| CN103692171A (en) * | 2014-01-10 | 2014-04-02 | 点夺机电工程江苏有限公司 | Making method of shrimp elbow |
| CN103978343B (en) * | 2014-04-17 | 2016-08-24 | 中信重工机械股份有限公司 | A kind of processing method of large-sized grinder feed bend pipe |
| CN109477328B (en) * | 2016-07-07 | 2021-05-28 | 尼尔森灌溉公司 | Center pivot irrigation gooseneck with varying cross-sectional diameter |
| CN109014644A (en) * | 2018-09-30 | 2018-12-18 | 中船黄埔文冲船舶有限公司 | A kind of runner elbow-making method |
| CN111088850B (en) * | 2019-12-31 | 2022-03-29 | 江苏沪宁钢机股份有限公司 | Horseshoe-shaped node and manufacturing method thereof |
| CN117884848B (en) * | 2024-03-18 | 2024-05-07 | 四川优机精密机械制造有限公司 | Processing method of oil transportation elbow joint of aircraft engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU811049A1 (en) * | 1979-04-16 | 1981-03-07 | Уральский Научно-Исследовательскийинститут Трубной Промышленности | Method of production of pipeline elbow with wear-resistant inner coating |
| EP1034063B1 (en) * | 1997-10-30 | 2002-12-11 | Volvo Aero Corporation | A method for producing rotational-symmetrical articles of sheet metal with double curved surface and varying thickness of material |
| CN101332600A (en) * | 2007-06-29 | 2008-12-31 | 鞍钢集团矿业公司 | Blanking method of multi-node knee |
| CN101698275A (en) * | 2009-10-30 | 2010-04-28 | 四川石油天然气建设工程有限责任公司 | Mold manufacturing method for high-acidity gas-field elbow heat insulation blocks |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5442879A (en) * | 1993-06-14 | 1995-08-22 | V. Kann Rasmussen Industri A/S | Counterbalanced window operator |
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2010
- 2010-11-24 CN CN 201010556899 patent/CN102059514B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU811049A1 (en) * | 1979-04-16 | 1981-03-07 | Уральский Научно-Исследовательскийинститут Трубной Промышленности | Method of production of pipeline elbow with wear-resistant inner coating |
| EP1034063B1 (en) * | 1997-10-30 | 2002-12-11 | Volvo Aero Corporation | A method for producing rotational-symmetrical articles of sheet metal with double curved surface and varying thickness of material |
| CN101332600A (en) * | 2007-06-29 | 2008-12-31 | 鞍钢集团矿业公司 | Blanking method of multi-node knee |
| CN101698275A (en) * | 2009-10-30 | 2010-04-28 | 四川石油天然气建设工程有限责任公司 | Mold manufacturing method for high-acidity gas-field elbow heat insulation blocks |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平7-11837A 1995.05.09 |
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