CN101890449A - Integral spinning forming process for special pipes and support device thereof - Google Patents
Integral spinning forming process for special pipes and support device thereof Download PDFInfo
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- CN101890449A CN101890449A CN 201010127537 CN201010127537A CN101890449A CN 101890449 A CN101890449 A CN 101890449A CN 201010127537 CN201010127537 CN 201010127537 CN 201010127537 A CN201010127537 A CN 201010127537A CN 101890449 A CN101890449 A CN 101890449A
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- pipe fitting
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Abstract
The invention relates to an integral spinning forming process for special pipes and a support device thereof. The process comprises the following steps of: clamping a blank on a spindle of a machine tool; and performing spinning forming after a feed program is made according to profiles of rod pieces, wherein the process parameters are that: a fillet radius of a spinning wheel is 20 millimeters, the rotating speed of the spindle is 160 to 200rpm, the feed speed is 400 to 500 millimeters/minute, and the distance L between the spinning wheel and the support device for the rod pieces is 60 millimeters. The support device consists of a box body, a main sleeve, a support sleeve, a bearing, an end cover, and a locking nut, wherein the main sleeve is connected to the box body through a bearing and can freely rotate; the support sleeve is connected to the main sleeve through screws; and the rod pieces are supported by the support sleeve. The technical scheme has the advantages of adopting the advanced integral spinning technology for forming, and greatly improving production efficiency, eliminating welding lines, strengthening the strength, reducing material waste and saving the cost on the premise of not needing any fixture.
Description
Technical field
The present invention is a kind of integral spinning forming process for special pipes and bracing or strutting arrangement thereof, belongs to the moulding and the processing technique field of product.
Background technology
The manufacturing process of pipe fittings such as present flagpole lamp stand is:
1. by plate die mould on bender;
2 welding formings are to the semi-finished product welding of die mould
3 owing to being welded with distortion, need alignment on the special pressure machine
4 pairs of welding beads are polished
5 whole polishings
Prior art is not enough and improvement
The shortcoming of this process forming: the lamp stand flagpole of shaping has weld seam, intensity is low, precision is low, waste material, and manufacturing cost height, manufacturing cycle are long, and labour intensity is big, and can only be shaped straight tube or taper flagpole lamp stand.Though the process shaping flagpole lamp stand that welds polishing again by plate distinguish die mould can satisfy user's requirement substantially, but along with the raising of labor cost, the needs of model change, the appearance of special piece demand, the shortcoming that this process exists has also manifested to come out, and its shortcoming mainly contains:
1. production efficiency is low: this method will be through tens procedures, and production efficiency is low.
2. kind is single: owing to be subjected to the restriction of bender, and this method can only be shaped straight tube or taper rod member.
3. contaminated environment: the entire body welding, environmental pollution is serious.
4. there is weld seam in piece surface: though body of rod weld seam is difficult to reach smooth through polishing, so body of rod surface is not sufficiently oily, also have local buckling after the alignment.
5. intensity is low, precision is low.
6. waste material, labour intensity is big, manufacturing cost is high, the manufacturing cycle is long
Summary of the invention
The present invention designs at the shortcoming that exists in the above-mentioned prior art just a kind of integral spinning forming process for special pipes and bracing or strutting arrangement thereof is provided, its objective is and adopt advanced whole rotary pressure technology to be shaped, under the prerequisite of frock clamp, can enhance productivity greatly, cancel weld seam, gain in strength, reduce waste of material, save cost, maximum advantage is to realize the monolithic molding of complex profile flagpole lamp stand, the formed thereby pipe fitting is attractive in appearance well-balanced, and the intensity high life is long.This invention provides a kind of brand-new process for making elongated thin-walled special piece.
The objective of the invention is to realize by following technical measures:
Technical solution of the present invention has proposed a kind of integral spinning forming process for special pipes, it is characterized in that: the step of this technology is:
(1) length of determining part blank according to the length and the rate elongation behind the blank spinning of pipe fitting and with this length blanking;
(2) blank is installed on machine tool chief axis, and according to pipe fitting profile establishment feed program;
(3) mould pressing, its technological parameter is as follows: roller working radius is 20 millimeters, and the speed of mainshaft is 160～200 rev/mins, and feed speed is 400～500 millimeters/minute, and the distance L of the bracing or strutting arrangement of spinning roller and rod member is 60 millimeters;
(4) cut supination blank two ends surplus, follow-up outer surface is handled.
Technical solution of the present invention has also proposed a kind of bracing or strutting arrangement of integral spinning forming process for special pipes, it is characterized in that: this device is made up of casing, master collet, stop sleeve, bearing, end cap, locking nut, master collet is connected on the casing by bearing, and master collet is free to rotate; Stop sleeve is connected on the master collet by screw, and stop sleeve can freely be changed according to the rod member external diameter, and rod member is supported by stop sleeve, and spinning roller moves axially with identical speed with stop sleeve in the process.
Description of drawings
Fig. 1 is the structural representation of bracing or strutting arrangement
Fig. 2 is the schematic diagram of spinning process
Fig. 3 is the shape schematic diagram of pipe fitting
The specific embodiment
Below with reference to drawings and Examples technical solution of the present invention is further described:
According to pipe fitting profile establishment feed program, carry out mould pressing then, its technological parameter is as follows: spinning roller 1 radius of corner is 20 millimeters, and main shaft 2 rotating speeds are 180 rev/mins, feed speed is 450 millimeters/minute, and spinning roller 1 is 60 millimeters with the axial distance L of the stop sleeve 9 of the bracing or strutting arrangement 4 of rod member 1.After spinning is finished, cut supination blank two ends surplus; Carry out outer surface and handle (spray paint, plastic-blasting); Annexes such as mounting seat and flag elevating mechanism or light fixture.
Compared with prior art, the advantage of technical solution of the present invention is:
1. production efficiency height adopts the spinning Integratively to be shaped, and has cancelled the loaded down with trivial details operations such as welding, alignment of Traditional Method;
2. do not need mould, greatly reduce cost, shortened the production cycle;
3. can be shaped includes the part of circular arc, taper and bent shape of generatrix, can process to have Extraordinary abnormity lamp stand;
4. saving material, material has prolongation behind the spinning, and original blank is shorter than part length, and to save meaning very obvious for material when producing in enormous quantities.
5. the strength ratio mother metal improves 15%～25% behind the whole spinning, and precision also improves a lot.
6. the weld seam operation has been cancelled in energy-conserving and environment-protective, has reduced the polishing amount.
Claims (2)
1. integral spinning forming process for special pipes, it is characterized in that: the step of this technology is:
(1) length of determining part blank according to the length and the rate elongation behind the blank spinning of pipe fitting (5) and with this length blanking;
(2) blank is installed on machine tool chief axis (2), and according to pipe fitting profile establishment feed program;
(3) mould pressing, its technological parameter is as follows: spinning roller (1) radius of corner is 20 millimeters, main shaft (2) rotating speed is 160～200 rev/mins, and the axial feed velocity V of spinning roller (1) is 400～500 millimeters/minute, and spinning roller (1) is 60 millimeters with the distance L of the bracing or strutting arrangement (4) of pipe fitting (5);
(4) cut supination blank two ends surplus, follow-up outer surface is handled.
2. bracing or strutting arrangement that is used for the described integral spinning forming process for special pipes of claim 1, it is characterized in that: this device is made up of casing (6), master collet (8), stop sleeve (9), bearing (11), end cap (10), locking nut (7), master collet (8) is connected on the casing (6) by bearing (11), and master collet (8) is free to rotate; Stop sleeve (9) is connected on the master collet by screw, and stop sleeve (9) can freely be changed according to pipe fitting (5) external diameter, and pipe fitting (5) is supported by stop sleeve (9), and spinning roller in the process (1) moves axially with identical speed with stop sleeve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010127537 CN101890449A (en) | 2010-03-19 | 2010-03-19 | Integral spinning forming process for special pipes and support device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010127537 CN101890449A (en) | 2010-03-19 | 2010-03-19 | Integral spinning forming process for special pipes and support device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101890449A true CN101890449A (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010127537 Pending CN101890449A (en) | 2010-03-19 | 2010-03-19 | Integral spinning forming process for special pipes and support device thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101890449A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537856A (en) * | 2015-08-31 | 2016-05-04 | 上海交通大学 | Connecting method for thin-wall shells |
| CN107052117A (en) * | 2017-04-14 | 2017-08-18 | 刘得胜 | A kind of forming method of special section tubular product |
| CN108160793A (en) * | 2017-12-13 | 2018-06-15 | 航天特种材料及工艺技术研究所 | A kind of internal rolling equipment |
| CN114603028A (en) * | 2022-03-09 | 2022-06-10 | 西北工业大学 | Stepped loading type follow-up constraint spinning forming method for cylindrical part with inner ribs |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228385Y (en) * | 1995-10-17 | 1996-06-05 | 王保东 | Spinning diameter fixing device for making composite cylinder |
| JP2004141880A (en) * | 2002-10-21 | 2004-05-20 | Ricoh Co Ltd | Thin wall core metal, method for manufacturing the same, fixing roller, fixing device, and image forming apparatus |
| CN201049370Y (en) * | 2007-04-09 | 2008-04-23 | 冈山精工(中山)有限公司 | Reducing pipe spinning processing device |
| US20090194900A1 (en) * | 2008-02-06 | 2009-08-06 | Murata Shigeoi | Drawing apparatus and drawing method |
-
2010
- 2010-03-19 CN CN 201010127537 patent/CN101890449A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228385Y (en) * | 1995-10-17 | 1996-06-05 | 王保东 | Spinning diameter fixing device for making composite cylinder |
| JP2004141880A (en) * | 2002-10-21 | 2004-05-20 | Ricoh Co Ltd | Thin wall core metal, method for manufacturing the same, fixing roller, fixing device, and image forming apparatus |
| CN201049370Y (en) * | 2007-04-09 | 2008-04-23 | 冈山精工(中山)有限公司 | Reducing pipe spinning processing device |
| US20090194900A1 (en) * | 2008-02-06 | 2009-08-06 | Murata Shigeoi | Drawing apparatus and drawing method |
Non-Patent Citations (1)
| Title |
|---|
| 《第十一届全国旋压技术交流大会论文集》 20081231 王健飞等 旗灯杆旋压成形工艺及专用设备的开发 第112页最后1段至第114页倒数第2段 1 , 2 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537856A (en) * | 2015-08-31 | 2016-05-04 | 上海交通大学 | Connecting method for thin-wall shells |
| CN107052117A (en) * | 2017-04-14 | 2017-08-18 | 刘得胜 | A kind of forming method of special section tubular product |
| CN108160793A (en) * | 2017-12-13 | 2018-06-15 | 航天特种材料及工艺技术研究所 | A kind of internal rolling equipment |
| CN114603028A (en) * | 2022-03-09 | 2022-06-10 | 西北工业大学 | Stepped loading type follow-up constraint spinning forming method for cylindrical part with inner ribs |
| CN114603028B (en) * | 2022-03-09 | 2023-03-10 | 西北工业大学 | Stepped loading type follow-up constraint spinning forming method for cylindrical part with inner ribs |
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Open date: 20101124 |