CN103157706A - Sealed curved line pipe bending technology - Google Patents
Sealed curved line pipe bending technology Download PDFInfo
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- CN103157706A CN103157706A CN2013100827433A CN201310082743A CN103157706A CN 103157706 A CN103157706 A CN 103157706A CN 2013100827433 A CN2013100827433 A CN 2013100827433A CN 201310082743 A CN201310082743 A CN 201310082743A CN 103157706 A CN103157706 A CN 103157706A
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Abstract
The invention discloses a sealed curved line pipe bending technology. Bending of continuous multiple-segment arc sealed curved line pipes can be achieved through a sequence of technology procedures, namely, arc fitting, one-time bending, sample pipe reverse engineering, second-time fitting, multiple-time bending, parameter confirming, massive production and welding forming. Thus, massive production of sealed curved line bent pipes is achieved, the production process is stable and production efficiency is high.
Description
Technical field
The present invention relates to the motor vehicle components processing technique field, particularly a kind of closed curve bent tube technique.
Background technology
In general motor vehicle processing and manufacturing process, some have the vehicle of specific use and structure such as sightseeing bus etc., its doorframe and door skeleton are the elbow member of closed curve profile, and are rings very important in the car load production process to the processing and manufacturing of these elbow members.
In present existing elbow member processing and manufacturing process, generally to adopt general angle pipe equipment that tubing is bent, yet this kind processing mode only can realize having the processing needs of the regular part shape of straight line-circular arc-form of straight lines, and it can only bend decides circular arc, bending of continuous multi-stage circular arc closed curve tubing can't be realized, the efficient stable batch production needs of closed curve bend pipe can not be satisfied.
Therefore, the batch production that how to realize efficiently and stably the closed curve bend pipe is the important technological problems that those skilled in the art need to solve at present.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of closed curve bent tube technique, it can realize the batch production of closed curve bend pipe efficiently and stably.
For solving the problems of the technologies described above, the invention provides a kind of closed curve bent tube technique, comprise step:
Circular fitting is done Secondary Design to doorframe moulding digital-to-analogue, and profile is made circular fitting, meets the programming requirement of CNC tube bending machine;
Once bend, on CNC tube bending machine, tubing is carried out pushing away of multistage continuous circular arc curved, and carrying out stretch bending and close up pushing away tubing after curved on CNC tube bending machine, obtain the exemplar of dimensionally stable;
The exemplar reverse is carried out reverse to the exemplar profile of dimensionally stable;
Quadratic fit is done circular fitting for the second time to the curve after reverse;
Repeatedly bend, the contour curve that obtains after quadratic fit is carried out several times as initial conditions to bend pipe bend, until obtain dimensionally stable and meet the exemplar of matched curve requirement;
Determine parameter, the lathe parameter when obtaining dimensionally stable and meeting the exemplar of matched curve requirement and control program are as the foundation of batch production;
Batch production is according to the batch production of fixed lathe parameter and control program enforcement closed curve bend pipe;
Welding fabrication is placed on soldering set finally bending the pipe fitting that obtains, and clamps the seam interface position, and with the pipe fitting end seam.
Relative above-mentioned background technology, closed curve bent tube technique provided by the present invention, circular fitting by carrying out successively, once bend, exemplar reverse, quadratic fit, repeatedly bend, determine parameter, batch production and welding fabrication processing step, can realize the bending process of continuous multi-stage circular arc closed curve tubing, thereby realized the batch production of closed curve bend pipe, and its stable production process, production efficiency is higher.
Description of drawings
The flow chart of the closed curve bent tube technique that Fig. 1 provides for a kind of specific embodiment party of the present invention.
The specific embodiment
Core of the present invention is to provide a kind of closed curve bent tube technique, and it can realize the batch production of closed curve bend pipe efficiently and stably.
In order to make those skilled in the art person understand better the present invention program, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, the flow chart of the closed curve bent tube technique that Fig. 1 provides for a kind of specific embodiment party of the present invention.
The closed curve bent tube technique that the embodiment of the present invention one provides comprises:
Step 101: circular fitting;
Doorframe moulding digital-to-analogue is done Secondary Design, and profile is made circular fitting, meets the programming requirement of CNC tube bending machine.
Step 102: once bend;
On CNC tube bending machine, tubing is carried out pushing away of multistage continuous circular arc curved, and carrying out stretch bending and close up pushing away tubing after curved on CNC tube bending machine, and this stretch bending closing in operation obtains the exemplar of dimensionally stable without loosing core.
Step 103: exemplar reverse;
Exemplar profile to dimensionally stable carries out reverse.
Step 104: quadratic fit;
Curve after reverse is done circular fitting for the second time.
Step 105: repeatedly bend;
The contour curve that obtains after quadratic fit is carried out several times as initial conditions to bend pipe bend, until obtain dimensionally stable and meet the exemplar of matched curve requirement.
Step 106: determine parameter;
Lathe parameter when obtaining dimensionally stable and meeting the exemplar of matched curve requirement and control program are as the foundation of batch production.
Step 107: batch production;
Batch production according to fixed lathe parameter and control program enforcement closed curve bend pipe.
Step 108: welding fabrication;
Be placed on soldering set finally bending the pipe fitting that obtains, clamp the seam interface position, and with the pipe fitting end seam.So screen resilience can be converted into the internal stress of sealing pipe fitting, thereby effectively eliminate resilience to the impact of contour accuracy.
In summary, the closed curve bent tube technique that provides in the present invention, circular fitting by carrying out successively, once bend, exemplar reverse, quadratic fit, repeatedly bend, determine parameter, batch production and welding fabrication processing step, can realize the bending process of continuous multi-stage circular arc closed curve tubing, thereby realized the batch production of closed curve bend pipe, and its stable production process, production efficiency is higher.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part is mutually referring to getting final product.
Above closed curve bent tube technique provided by the present invention is described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (1)
1. a closed curve bent tube technique, is characterized in that, comprises step:
Circular fitting is done Secondary Design to doorframe moulding digital-to-analogue, and profile is made circular fitting, meets the programming requirement of CNC tube bending machine;
Once bend, on CNC tube bending machine, tubing is carried out pushing away of multistage continuous circular arc curved, and carrying out stretch bending and close up pushing away tubing after curved on CNC tube bending machine, obtain the exemplar of dimensionally stable;
The exemplar reverse is carried out reverse to the exemplar profile of dimensionally stable;
Quadratic fit is done circular fitting for the second time to the curve after reverse;
Repeatedly bend, the contour curve that obtains after quadratic fit is carried out several times as initial conditions to bend pipe bend, until obtain dimensionally stable and meet the exemplar of matched curve requirement;
Determine parameter, the lathe parameter when obtaining dimensionally stable and meeting the exemplar of matched curve requirement and control program are as the foundation of batch production;
Batch production is according to the batch production of fixed lathe parameter and control program enforcement closed curve bend pipe;
Welding fabrication is placed on soldering set finally bending the pipe fitting that obtains, and clamps the seam interface position, and with the pipe fitting end seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082743.3A CN103157706B (en) | 2013-03-15 | 2013-03-15 | Sealed curved line pipe bending technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082743.3A CN103157706B (en) | 2013-03-15 | 2013-03-15 | Sealed curved line pipe bending technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103157706A true CN103157706A (en) | 2013-06-19 |
| CN103157706B CN103157706B (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310082743.3A Active CN103157706B (en) | 2013-03-15 | 2013-03-15 | Sealed curved line pipe bending technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN103157706B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115009360A (en) * | 2022-06-28 | 2022-09-06 | 广东玛西尔电动科技有限公司 | Novel technological frame crossbeam of sightseeing vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07124651A (en) * | 1993-11-05 | 1995-05-16 | Nisshinbo Ind Inc | Link system die for bending machine and its production |
| CN101259046A (en) * | 2007-03-07 | 2008-09-10 | 上海双申医疗器械有限公司 | Titanium individuation mandibula prosthesis and preparation |
| CN102661046A (en) * | 2012-05-31 | 2012-09-12 | 中国二十二冶集团有限公司 | Method for manufacturing tubular joint of small-angle fully bent tube |
| CN102699141A (en) * | 2012-06-12 | 2012-10-03 | 扬州市管件厂有限公司 | On-line monitoring method of bent pipe cold extrusion processing quality |
-
2013
- 2013-03-15 CN CN201310082743.3A patent/CN103157706B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07124651A (en) * | 1993-11-05 | 1995-05-16 | Nisshinbo Ind Inc | Link system die for bending machine and its production |
| CN101259046A (en) * | 2007-03-07 | 2008-09-10 | 上海双申医疗器械有限公司 | Titanium individuation mandibula prosthesis and preparation |
| CN102661046A (en) * | 2012-05-31 | 2012-09-12 | 中国二十二冶集团有限公司 | Method for manufacturing tubular joint of small-angle fully bent tube |
| CN102699141A (en) * | 2012-06-12 | 2012-10-03 | 扬州市管件厂有限公司 | On-line monitoring method of bent pipe cold extrusion processing quality |
Non-Patent Citations (1)
| Title |
|---|
| 周开俊等: "基于数控程序的风机转子反求设计研究", 《机械科学与技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115009360A (en) * | 2022-06-28 | 2022-09-06 | 广东玛西尔电动科技有限公司 | Novel technological frame crossbeam of sightseeing vehicle |
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| Publication number | Publication date |
|---|---|
| CN103157706B (en) | 2015-05-27 |
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Owner name: GUANGXI PROVINCE AUTOMOBILE GROUP CO., LTD. Free format text: FORMER NAME: WULING AUTOMOBILE CO., LTD., LIUZHOU |
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| CP01 | Change in the name or title of a patent holder |
Address after: 545007 Liuzhou Hexi Road, the Guangxi Zhuang Autonomous Region, No. 18 Patentee after: Guangxi company limited of automobile group Patentee after: Liuzhou Wuling Automobile Industry Co., Ltd. Address before: 545007 Liuzhou Hexi Road, the Guangxi Zhuang Autonomous Region, No. 18 Patentee before: Liuzhou Wuling Motors Co., Ltd. Patentee before: Liuzhou Wuling Automobile Industry Co., Ltd. |