CN1265907C - Method for bending large sectional steel - Google Patents
Method for bending large sectional steel Download PDFInfo
- Publication number
- CN1265907C CN1265907C CN 200410040818 CN200410040818A CN1265907C CN 1265907 C CN1265907 C CN 1265907C CN 200410040818 CN200410040818 CN 200410040818 CN 200410040818 A CN200410040818 A CN 200410040818A CN 1265907 C CN1265907 C CN 1265907C
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- bending
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- section steel
- heavy section
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Abstract
The present invention discloses a processing method for bending and shaping heavy section steel. The method comprises the following steps: (1) a bending mould and a dead pulley are respectively pressed on a working table and are tightly fixed; (2) one end of a workpiece is welded with a device for connecting a pulling rope and is connected with an upper pulling rope, and the other end of the workpiece is pressed at an extension section of a mould plate of the bending mould and is fixed to the working table together; (3) the pulling rope penetrates through the dead pulley and is connected with a device for pulling; (4) the device for pulling is started up, the workpiece is stretched and bent through the pulling rope so as to enable the workpiece to cling to a bending arc of the mould plate of the bending mould; (5) the shape of the workpiece is fixed by using solid measures. The method of the present invention is used for bending and shaping bending members of the heavy section steel through the combination of the pull of a travelling crane or a winding engine and a simple shaping mould and fire and water shape receiving technology under the condition of no special bending equipment and shape-righting equipment. The present invention has the advantages of simple method, low processing cost and easy operation.
Description
Technical field
The present invention relates to the sheet metal manufacture field, particularly a kind of under the situation of no special equipment, make the simple and easy processing method of heavy section steel bending forming.
Background technology
At present, to heavy section steel particularly the bent member of I-steel, channel-section steel and so on carry out bending forming, general adopt special special pressure equipment and variously roll curved, press-bending, stretch bending, shaping orthopedic equipment and make, these equipment are huge and kind is more, the equipment that has also need be aided with large-scale particular manufacturing craft, and purchase these equipment and need drop into substantial contribution, thereby, except that professional production producer and special trade, general enterprise does not possess these working conditions.When needing this class bent member of processing, have to adopt the cooperation processing mode, will increase cost of transportation like this, also can not finish engineering duty sometimes on time because of the road transportation influences the duration.
Summary of the invention
The processing method that the purpose of this invention is to provide a kind of heavy section steel bending forming, it can make heavy section steel camber member bending forming by easy processing method under the situation that does not possess special-purpose bending equipment, orthopedic equipment.
The object of the present invention is achieved like this:
(1) a bending mould and a fixed pulley are fitted in respectively on the workbench of sheet metal processing space, fix with fastener;
(2) be used to connect the device of pull rope and connect overhanging cable one of workpiece one end welding, the other end of workpiece is fitted in the extension of the template of bending mould, and with fastener with the extension of workpiece, template and stationary table together;
(3) being connected after pull rope on the workpiece passes the fixed pulley that is fixed on the workbench, be connected with the device that is used to draw;
(4) start the device be used to draw, by pull rope the workpiece stretch bending to being close to the curved arc of the template of bending mould;
(5) adopt solid shape measure that the shape of workpiece is fixed.
Owing to adopted such scheme, bending mould and fixed pulley are press-fited the workbench that is fixed on the sheet metal processing space, help the processing of large-scale workpiece.The device that is used to connect pull rope one of workpiece one end welding makes the workpiece that is connected that pull rope can be firm, the other end of workpiece is fitted in the extension of the template of bending mould, and with fastener together with the extension of workpiece, template and stationary table, make add man-hour workpiece and the bending mould can not be shifted.Be connected with the device that is used to draw after pull rope on the workpiece passes the fixed pulley that is fixed on the workbench being connected, by fixed pulley the bending traction of workpiece is led, the direction of traction can be offset, can guarantee the accurate of workpiece curved oriented.Utilize the driving of sheet metal processing space or the device that hoist engine acts on traction, its tractive force is enough to the workpiece stretch bending with heavy section steel.After workpiece bent to required form, the solid shape measure of employing extreme misery receipts shape method was shunk solid shape to the inner arc of workpiece, guarantees the stationarity of workpiece bending forming, can not produce distortion.
The present invention utilizes common equipments such as workbench that general sheet metal processing site has, driving, hoist engine, fixed pulley, just can finish the bending forming processing of heavy section steel workpiece in conjunction with the simple bending mould of making according to the needs of workpiece bending, need not acquire expensive special equipment, its method is simple and easy, solved under the situation of no special equipment the processing difficult problem of heavy section steel bent member.
The invention will be further described below in conjunction with drawings and Examples.
Description of drawings
Accompanying drawing is a kind of embodiment schematic diagram of the present invention.
The specific embodiment
Referring to accompanying drawing, be that example specifies with the curved rail of processing Q235-28# I-steel: at first, a bending mould 2 and a fixed pulley 3 are fitted in respectively on the workbench 1 of sheet metal processing space, fix with bolt, nut; Bending mould 2 is determined the curved arc radius and the arc length of template according to the needs of design bending, and the extension of template is close to the end face of workbench 1, and fixed pulley 3 is to the distance of the extension of the template of bending mould 2 length after greater than workpiece 5 bendings.Then, as requested to after the workpiece blanking, at device 4 that is used to connect pull rope of workpiece 5 one ends welding, this device 4 that is used to connect pull rope is anchor, and pull rope 6 is enclosed within on the anchor; The other end of workpiece 5 is fitted in the extension of the template of bending mould 2, with the extension of workpiece, template and stationary table together with bolt, nut.When press-fiting, workpiece 5 is vertical with workbench 1, and aligns the center line of bending mould 2, and the centerline that makes workpiece 5, bending mould 2, fixed pulley 3 is on same straight line.Subsequently, being connected after pull rope 6 on the workpiece 5 passes the fixed pulley 3 that is fixed on the workbench 1, be connected the suspension hook 7 of the driving that is used to draw, the device that is used to draw adopts hoist engine also can reach effect same.More than work ready after, start driving, the tractive force of driving by pull rope 6 workpiece 5 gradually stretch bending extremely be close to the curved arc of the template of bending mould 2.Then, adopt solid shape measure to carry out fixed in shape to the workpiece 5 that is close on the bending mould 2.Described solid shape measure adopts extreme misery to receive the shape method, promptly under the state of keeping that the curved arc of workpiece 5 stretch bendings and bending mould 2 is close to, receives fire district 8 in selected 5 triangles heating of the inner arc of workpiece 5, and heating is received fire and distinguished 8 and evenly distribute along workpiece 5 inner arcs; Heat one by one with imflammable gas again, this fuel gas is generally selected industrial oxygen for use, adopt natural gas or liquefied gas also can reach same effect, receive fire district 8 temperature in the triangle heating and reach when being cherry red about 800 ℃, water to drench with normal temperature cold water and make its cooling shrink shape admittedly.The heating-up temperature in triangle heating receipts fire district 8 fixes on 600～1000 ℃ according to the concrete size of workpiece, and the less relatively heating-up temperature of workpiece can be lower, and the relatively large heating-up temperature of workpiece should be higher.At workpiece 5 through the solid shape of solid shape measure, shape satisfy the processing technical requirement on design and stable after, unclamp fastening nut, bolt, it is taken off from bending mould 2, can use.
Height institute according to the length of workpiece 5 and sheet metal processing space space is different, bending mould 2, fixed pulley 3 and workpiece 5 also can adopt the mode of horizontal positioned to be fixed on the workbench 1, and its placement location, distance, fixed form and stretch bending traction method, solid shape measure are with aforementioned the same.
The inventive method is useful under the situation that does not possess special-purpose bending equipment, orthopedic equipment, to the heavy section steel bent member, the camber member of I-steel, channel-section steel and so on particularly, tractive force by driving or hoist engine is received shape technology bending forming in conjunction with simple mould and extreme misery, its method is simple and easy, can cut down finished cost again, easy to implement.
Claims (6)
1. the processing method of a heavy section steel bending forming is characterized in that this method may further comprise the steps:
(1) a bending mould and a fixed pulley are fitted in respectively on the workbench of sheet metal processing space, fix with fastener, described fixed pulley is to the distance of the extension of the template of the bending mould length after greater than the workpiece bending;
(2) be used to connect the device of pull rope and connect overhanging cable one of workpiece one end welding, the other end of workpiece is fitted in the extension of the template of bending mould, and with fastener with the extension of workpiece, template and stationary table together, the centerline of described workpiece, bending mould, fixed pulley is on same straight line;
(3) being connected after pull rope on the workpiece passes the fixed pulley that is fixed on the workbench, be connected with the device that is used to draw;
(4) start the device be used to draw, by pull rope the workpiece stretch bending to being close to the curved arc of the template of bending mould;
(5) adopt solid shape measure that the shape of workpiece is fixed.
2. the processing method of heavy section steel bending forming according to claim 1 is characterized in that: described bending mould is determined curved arc radius and arc length according to the needs of design bending.
3. the processing method of heavy section steel bending forming according to claim 1 is characterized in that: described fastener is a screw bolt and nut.
4. the processing method of heavy section steel bending forming according to claim 1 is characterized in that: the described device that is used to draw is driving or hoist engine;
5. the processing method of heavy section steel bending forming according to claim 1, it is characterized in that: described solid shape measure adopts extreme misery to receive the shape method, promptly under the state of keeping that the curved arc of workpiece stretch bending and bending mould is close to, receive the fire district in selected at least one the triangle heating of the inner arc of workpiece, heat one by one with imflammable gas, when temperature reaches 600～1000 ℃, water pouring with normal temperature cold water and make its cooling shrink solid shape.
6. the processing method of heavy section steel bending forming according to claim 5 is characterized in that: described heating is received the fire district and is evenly distributed along the workpiece inner arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040818 CN1265907C (en) | 2004-10-07 | 2004-10-07 | Method for bending large sectional steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040818 CN1265907C (en) | 2004-10-07 | 2004-10-07 | Method for bending large sectional steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1613568A CN1613568A (en) | 2005-05-11 |
| CN1265907C true CN1265907C (en) | 2006-07-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410040818 Expired - Fee Related CN1265907C (en) | 2004-10-07 | 2004-10-07 | Method for bending large sectional steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1265907C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756248B (en) * | 2012-07-31 | 2015-06-10 | 朱强龙 | Manufacture process of ring cooling machine side track |
| CN102873145B (en) * | 2012-10-19 | 2015-03-25 | 中国十九冶集团有限公司 | Device and method for machining angle steel of conical bin wall |
| ES2719001T3 (en) * | 2015-01-30 | 2019-07-05 | Baomarc Automotive Solutions S P A | Method for the production of curved pieces from a continuous metal element |
| CN106077200B (en) * | 2016-08-26 | 2018-04-17 | 江阴市七星机械设备制造有限公司 | The hot-bending method of the U-shaped sunpender of boiler |
| WO2019028949A1 (en) * | 2017-08-10 | 2019-02-14 | 南通耀龙金属制造有限公司 | Large pipeline bending machine |
| CN108262411A (en) * | 2017-11-23 | 2018-07-10 | 湖北江山专用汽车有限公司 | A kind of assist formation device of automobile side rail supporting rib |
| CN107855388B (en) * | 2017-11-28 | 2019-02-15 | 宁波江北森壹机械制造有限公司 | Bending method for handware |
| CN108555085A (en) * | 2018-03-05 | 2018-09-21 | 蒋欣 | A kind of metallic conduit swan neck system with automatic regulation function |
| CN109262529B (en) * | 2018-09-11 | 2024-01-23 | 山西平阳重工机械有限责任公司 | 72-degree bending tool for product disconnecting switch starting rope |
| CN110883151B (en) * | 2019-12-03 | 2021-06-29 | 攀钢集团西昌钢钒有限公司 | Air port small sleeve cooling water pipe bending machine tool |
| CN113882373B (en) * | 2021-10-26 | 2022-12-09 | 中建三局第一建设(四川)有限责任公司 | End part separating device and tensioning method for multi-rod fixing structure |
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2004
- 2004-10-07 CN CN 200410040818 patent/CN1265907C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1613568A (en) | 2005-05-11 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANSHE MOTORCYCLE CO., LTD., CHONGQING Free format text: FORMER OWNER: CONSTRUCTION INDUSTRY (GROUP) CO., LTD. Effective date: 20051118 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20051118 Address after: Zheng Jie 400050 Xiejiawan Jiulongpo District of Chongqing City No. 47 Applicant after: Chongqing Jianshe Motorcycle Co., Ltd. Address before: Zheng Jie 40050 Xiejiawan Jiulongpo District of Chongqing City No. 47 Applicant before: Construction Industry (Group) Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151118 Address after: 400054 Banan District, Chongqing building Avenue, No. 2, building 1 Patentee after: CHONGQING CONSTRUCTION ELECTROMECHANICAL CO., LTD. Address before: Zheng Jie 400050 Xiejiawan Jiulongpo District of Chongqing City No. 47 Patentee before: Chongqing Jianshe Motorcycle Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060726 Termination date: 20161007 |