WO2010028548A1 - 法兰制造工艺 - Google Patents
法兰制造工艺 Download PDFInfo
- Publication number
- WO2010028548A1 WO2010028548A1 PCT/CN2009/070218 CN2009070218W WO2010028548A1 WO 2010028548 A1 WO2010028548 A1 WO 2010028548A1 CN 2009070218 W CN2009070218 W CN 2009070218W WO 2010028548 A1 WO2010028548 A1 WO 2010028548A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bending
- wheel
- spiral
- spiral ring
- flat steel
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/16—Making other particular articles rings, e.g. barrel hoops
Definitions
- the present invention relates to a rolling and rivet welding technique for metal materials, and more particularly to a flange rolling and rivet welding technique. Background technique
- the existing methods for manufacturing flanges mainly include: 1. The whole plate cutting method (the disadvantage is that the material is wasted); 2. The casting method (the disadvantage is that the quality of the flange is difficult to control); 3. The forging method (its shortcomings) Is the manufacturing cost is high); 4, bending method.
- the existing bending method is shown in Figures la and lb.
- the main process is as follows: The flat steel 1 is cut to a certain length according to the number of flanges to be rolled, and the flat steel 1 is parallel to the plane of the curved plate 3 Feed into the curved plate 3. Under the joint action of the bending plate 3 and the pressing wheel 2, the flat steel 1 is bent into a spiral ring which is closely adhered to each other, and then cut along the radial direction of the spiral ring, and then flattened and welded to form a method.
- Stop loading otherwise the stopper on the side of the curved plate cannot block the material of the flat steel 1 to bend.
- the heart roll method is adopted and the material does not roll off the curved plate 3 on one side, but must be stopped by the ejector pin 4 to eject the spiral ring formed by the winding.
- An object of the present invention is to provide a flange manufacturing process which has a high production speed, high material utilization rate, and low production cost.
- the present invention provides a flange manufacturing process comprising the steps of: heating a continuous casting billet to a rolling temperature; rolling the above-mentioned continuous casting billet into a flat steel; and crimping the flat steel into a plurality of crucibles a spiral ring, and shearing the multi-turn spiral ring; flattening the spiral ring formed by the above-mentioned shearing; and welding the flattened spiral ring; and:
- the step of crimping the flat steel into a multi-turn spiral ring and cutting the multi-turn spiral ring is:
- Providing a plurality of bending machines including a guide sleeve, a bending plate, a gear, a feeding wheel, a bending wheel, a force roller, a fixed spiral top block, a spiral wheel, which are connected to each other and mechanically interact with each other a radial wheel, a stop, a follower mechanism with scissors, a drive motor, a follower power generating device, and a punch having a punch for moving the punch downward to sequentially pass the flat steel through the distribution raceway Sent to the plurality of bending machines, through the guide sleeve And it is i0 with the plane of the curved plate. ⁇ 20.
- the angle is placed on the already started bending machine, and the gear causes the rotation of the bending plate, the feeding wheel, the bending wheel and the afterburning wheel to be turned, and the flat copper is bent under the joint of the bending plate and the bending wheel, Under the joint action of the fixed spiral top block, the spiral boring wheel and the radial boring wheel, the material of the flat steel is curled out of the curved disc and bent into a spiral ring whose lead is several times larger than the thickness of the material, when the material encounters
- the start-up power generating device drives the gear to rotate at the same speed as the curved plate, and triggers the punch or the hydraulic cylinder to push the punch downward, so that the scissors on the follow-up mechanism cuts the next spiral ring. .
- Figure la is a cross-sectional view of a bending machine reflecting the prior art bending method.
- Figure lb is a top plan view of a bending machine reflecting the prior art bending method.
- Figure 2b is a cross-sectional view of the structure of Figure 2a taken along the line A-A.
- Figure 2c is a cross-sectional view of the structure of Figure 2b taken along the line B-B. detailed description
- the invention discloses a flange manufacturing process with high production speed, high material utilization rate and low production cost.
- the specific process flow is as follows:
- the above flat steel 1 is sequentially sent to 6-10 bending machines via the distribution raceway, and through the guiding sleeve 18 and 10° to the plane of the bending plate 5
- the angle of 20° is placed on the already-opened bending machine, and the power drives the rotation of the bending plate 5, the feeding wheel 17, the bending wheel 6, and the force roller 14 via the gear 12.
- the speed of the bending plate 5 can reach more than 59 rpm.
- the flat steel is bent by the combination of the curved plate 5 and the curved wheel 6.
- the material side of the flat steel 1 is curled out of the curved plate 5, and is bent into a spiral circle whose lead is several times larger than the thickness of the material. ring.
- the stepping motor is started, the gear 19 is driven to rotate at the same speed as the bending plate 5, and the punch 9 is moved downward, so that the follower mechanism (the screw 13 and the spiral slider on the follower mechanism)
- the lead of 10 is the same as the lead of the wound spiral ring.
- the scissors 7 on the upper side cut the next spiral ring.
- the gist of the process is to improve the structure of the existing bending machine.
- the fixed spiral top block 11 is added above the plane of the curved plate 5, and the edge is rolled off the bending plate 5, thereby bending the spiral with a lead diameter greater than several times the thickness of the material. Ring. Due to the improvement of the above two points, the edge winding, the edge cutting, the high temperature butt welding and the docking with the rolling steel production line can be smoothly realized.
- the number of bending machines used in the process is determined according to the size of the inner and outer diameters of the flange to be bent.
- the outer diameter of the outer diameter of 400, the inner diameter of the flange of the inner diameter of 210 can be selected from 8 rolls of 12 rpm.
- the minute bender produces 96 flanges per minute and needs to be docked every minute.
- the type specifications of general-purpose equipment such as punch presses, presses, and flash butt welds mentioned in this process can be appropriately selected according to the cross-sectional area of the curved flange.
- This process is most suitable for the production of large quantities of flanges with low surface dimensions and finish requirements, such as prestressed concrete pipe pile flanges.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Metal Rolling (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200810198448.3 | 2008-09-10 | ||
CNA2008101984483A CN101357431A (zh) | 2008-09-10 | 2008-09-10 | 法兰制造工艺 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010028548A1 true WO2010028548A1 (zh) | 2010-03-18 |
Family
ID=40330104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2009/070218 WO2010028548A1 (zh) | 2008-09-10 | 2009-01-20 | 法兰制造工艺 |
Country Status (2)
Country | Link |
---|---|
CN (2) | CN101357431A (zh) |
WO (1) | WO2010028548A1 (zh) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100257739A1 (en) * | 2009-06-30 | 2010-10-14 | Sujith Sathian | Methods and flange for assembling towers |
CN101823196A (zh) * | 2010-03-19 | 2010-09-08 | 杭州临安仁达高新材料制造有限公司 | 管桩端板、工业法兰的生产工艺 |
CN102922238A (zh) * | 2012-11-08 | 2013-02-13 | 无锡市金羊管道附件有限公司 | 一种本体法兰的生产工艺 |
CN104646459A (zh) * | 2013-11-20 | 2015-05-27 | 铜陵市大成轧辊有限责任公司 | 法兰压制装置 |
CN104439938A (zh) * | 2014-11-07 | 2015-03-25 | 苏州市诚键法兰制造有限公司 | 一种不锈钢法兰的无缝制造方法 |
CN105750835B (zh) * | 2015-12-16 | 2017-09-01 | 中山市毅马五金有限公司 | 法兰端板加工工艺 |
CN111036740B (zh) * | 2019-11-29 | 2021-04-23 | 佛山市广浩科技有限公司 | 一种钣金件冲压后折弯成型方法 |
CN114669968A (zh) * | 2022-04-20 | 2022-06-28 | 伊莱特能源装备股份有限公司 | 一种冷弯焊接风电法兰的制造工艺 |
CN114798843B (zh) * | 2022-05-13 | 2024-02-06 | 通裕重工股份有限公司 | 一种法兰连续热卷成形的工艺方法及热卷设备 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58132322A (ja) * | 1982-01-30 | 1983-08-06 | Mitagawa Kinzoku Kogyo Kk | フランジ曲げ加工機 |
US4583675A (en) * | 1981-12-23 | 1986-04-22 | Hitachi, Ltd. | Method of production of a part formed with an opening |
CN2144541Y (zh) * | 1993-01-13 | 1993-10-27 | 周群 | 法兰弯制器 |
JPH06277851A (ja) * | 1993-03-29 | 1994-10-04 | Sato Tekko Kk | 継手用フランジの製造方法 |
CN1817556A (zh) * | 2006-02-28 | 2006-08-16 | 喻勇 | 一种法兰的制作方法 |
CN1970218A (zh) * | 2005-11-21 | 2007-05-30 | 广州市番禺区灵山金麟五金厂 | 挤压成型法兰及加工设备和加工方法 |
-
2008
- 2008-09-10 CN CNA2008101984483A patent/CN101357431A/zh active Pending
-
2009
- 2009-01-09 CN CN2009100007334A patent/CN101456117B/zh not_active Expired - Fee Related
- 2009-01-20 WO PCT/CN2009/070218 patent/WO2010028548A1/zh active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4583675A (en) * | 1981-12-23 | 1986-04-22 | Hitachi, Ltd. | Method of production of a part formed with an opening |
JPS58132322A (ja) * | 1982-01-30 | 1983-08-06 | Mitagawa Kinzoku Kogyo Kk | フランジ曲げ加工機 |
CN2144541Y (zh) * | 1993-01-13 | 1993-10-27 | 周群 | 法兰弯制器 |
JPH06277851A (ja) * | 1993-03-29 | 1994-10-04 | Sato Tekko Kk | 継手用フランジの製造方法 |
CN1970218A (zh) * | 2005-11-21 | 2007-05-30 | 广州市番禺区灵山金麟五金厂 | 挤压成型法兰及加工设备和加工方法 |
CN1817556A (zh) * | 2006-02-28 | 2006-08-16 | 喻勇 | 一种法兰的制作方法 |
Also Published As
Publication number | Publication date |
---|---|
CN101456117A (zh) | 2009-06-17 |
CN101357431A (zh) | 2009-02-04 |
CN101456117B (zh) | 2010-07-28 |
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