CN106694719A - Backward bending tool and backward bending method for edge of to-be-welded steel tube - Google Patents
Backward bending tool and backward bending method for edge of to-be-welded steel tube Download PDFInfo
- Publication number
- CN106694719A CN106694719A CN201611257232.0A CN201611257232A CN106694719A CN 106694719 A CN106694719 A CN 106694719A CN 201611257232 A CN201611257232 A CN 201611257232A CN 106694719 A CN106694719 A CN 106694719A
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- connecting rod
- inner membrance
- external mold
- edge
- top shoe
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005452 bending Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 title abstract description 11
- 239000010959 steel Substances 0.000 title abstract description 11
- 238000003466 welding Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 239000012528 membrane Substances 0.000 abstract 11
- 239000002184 metal Substances 0.000 abstract 1
- 244000144730 Amygdalus persica Species 0.000 description 2
- 235000006040 Prunus persica var persica Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/06—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes in openings, e.g. rolling-in
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention relates to a backward bending tool and a backward bending method for an edge of a to-be-welded steel tube and belongs to the technical field of metal plate processing devices. An inner membrane is placed between an upper outer mould and a lower outer mould; the upper surface of the inner membrane protrudes outward to form a chambered upper surface of the inner membrane and the lower surface of the inner membrane protrudes outward to form a chambered lower surface of the inner membrane; the inner membrane is fixed to an inner membrane connecting rod; the inner membrane connecting rod is horizontally arranged, and two ends of the inner membrane connecting rod are arranged through connecting rod lantern rings; the bottom end of a connecting rod connecting plate is connected to the inner membrane connecting rod through the connecting rod lantern rings and the top end thereof is fixedly mounted in the bottom of the connecting rod; the upper end of the connecting rod is connected to an upper slide block through a connecting rod fixing block; the upper outer mould is fixed in the center of the bottom of the upper slide block, and the bottom surface of the upper outer mould sinks inward to form a chambered outer mould surface; and the lower outer mould is located right below the inner membrane, and the upper surface of the lower outer mould sinks inward to form a chambered lower outer mould surface. The tool presses a straight edge section, so that the edge is deformed, thereby achieving the roundness requirement of the steel tube.
Description
Technical field
The invention belongs to metallic plate processing unit (plant) technical field, and in particular to for one kind treat Coiling Welded Pipe edge palintrope frock with
And rear bending method.
Background technology
The production of single Zhi Gangguan, is typically realized using rolling machine, but rolling machine production has certain limitation, such as wall
Thick, length, for heavy wall and requires length, and such as length is 12 meters, then generally use " JC " forming process.
In the bending process of steel plate, the region that there is one section of 1.5-3 times of wall thickness at its edge is " JC " forming process in theory
Cannot deform, referred to as " straight section ", if retaining this region, the steel pipe after processing is formed so-called " peach point ".
To eliminate this phenomenon, it is that cut edge treatment will be carried out after steel plate forming to have a kind of method, and in manual methods by edge
Reconditioning, then carries out the subsequent handling such as welding.This method not only wastes raw material, and wastes time and energy, some special steels
Planting does not allow this processing method yet.
The content of the invention
It is an object of the invention to overcome defect and deficiency mentioned above, and one kind is provided and treats Coiling Welded Pipe edge palintrope work
Dress.
Another object of the present invention is to provide one kind after bending method behind Coiling Welded Pipe edge.
The present invention realizes that the technical scheme that its purpose is used is as follows.
One kind treats Coiling Welded Pipe edge palintrope frock, including the connection of top shoe, connecting rod fixed block, connecting rod, upper external mold, connecting rod
Plate, the connecting rod collar, inner membrance connecting rod, inner membrance, lower external mold；The inner membrance is arranged between external mold and lower external mold；The inner membrance
Upper surface evagination is formed above the inner membrance of arcuation, and the lower surface evagination of the inner membrance is formed below the inner membrance of arcuation；The inner membrance
It is fixed on inner membrance connecting rod；The inner membrance connecting rod is horizontally disposed with, and two ends are arranged in the connecting rod collar；The connecting rod connecting plate bottom passes through
The connecting rod collar connects inner membrance connecting rod, and top is fixedly installed in connecting rod bottom；The small end is connected by by connecting rod fixed block
Connect sliding block；The upper external mold is fixed on top shoe bottom center, and the bottom surface of upper external mold is recessed the upper outer die face of arcuation；Institute
Lower external mold is stated immediately below inner membrance, and lower external mold upper surface is recessed the lower outer die face of arcuation.
The diameter of the upper outer die face is slightly larger than the diameter above inner membrance；Diameter below the inner membrance is equal to above inner membrance
Diameter；The diameter of the lower outer die face is slightly larger than the diameter below inner membrance.
The top shoe both sides are equipped with the lifting support erect and set；The lifting support top is fixedly connected top
Seat；The footstock is fixed with oil hydraulic cylinder；The output end connection top shoe of the oil hydraulic cylinder；The lifting support bottom connects bottom
Seat；The upper face center of the base fixes lower external mold.
The connecting rod is round bar；The connecting rod fixed block is fixedly welded on the middle part in top shoe rear and front end face；The company
Bar is erect and is set, and upper end is connected with nut through connecting rod fixed block rear thread；The connecting rod is slidably connected with connecting rod fixed block.
The connecting rod connecting plate is surface plate, and upper end is welded with connecting rod, and lower end is welded with the connecting rod collar；The connecting rod connection
The axle center of plate and inner membrance is generally aligned in the same plane.
The connecting rod collar is in hollow cylindric；The inner membrance connecting rod two ends are arranged in the connecting rod collar；The connecting rod set
Ring is threaded with rod set tight fixed bolt；The rod set tight fixed bolt end contacts inner membrance connecting rod.
The inner membrance is symmetrical around the eccentric axial of inner membrance；The left and right sides of the inner membrance is plane.
The surface of the upper outer die face is coated with one layer of elastic layer；Surface below the inner membrance surface above and inner membrance
It is all covered with one layer of elastic layer；The surface of the lower outer die face is all covered with one layer of elastic layer.
It is a kind of after bending method after Coiling Welded Pipe edge palintrope frock, comprise the following steps：
Step one, will pass through and bends and be sheathed on outside inner membrance in circular pipe, and by the opening of pipe upward
Set, between the edge straight section of pipe is located above upper outer die face and inner membrance；
Step 2, oil hydraulic cylinder action promotes top shoe descending along lifting support, upper external mold and the equal DL synchronization of inner membrance, pipe
Inner membrance stopping is descending after bottom touches lower external mold, and the connecting rod and connecting rod fixed block are slided relatively, nut and connecting rod on connecting rod
Fixed block is separated；Top shoe is continued traveling downwardly, and upper external mold and inner membrance produce relative movement, until upper external mold is straight by the edge of pipe
Side section be located in above outer die face and inner membrance between and keep a period of time；
Step 3, oil hydraulic cylinder action promotes top shoe up along lifting support, and upper external mold is up and departs from inner membrance, then,
The connecting rod and the relative slip of connecting rod fixed block, after the nut on connecting rod is mutually contacted with connecting rod fixed block, top shoe passes through
Connecting rod pulls inner membrance uplink synchronization；Inner membrance and lower external mold depart from, and complete the compacting of the edge straight section of pipe.
This frock solves " peach point " problem in more economical mode, traditional cut edge handling process is eliminated, using general
The existing steel pipe full circle equipment of pipe enterprise, for example：Four-column hydraulic press, it is deformed by the compacting to " straight section ",
Reach steel pipe roundness requirement.
Brief description of the drawings
Fig. 1 is the front view of this frock；
Fig. 2 is the side view of this frock；
In figure：It is top shoe 1, connecting rod fixed block 2, connecting rod 3, upper external mold 4, connecting rod connecting plate 5, the connecting rod collar 6, inner membrance connecting rod 7, interior
Film 8, lower external mold 9, lifting support 10, footstock 11, oil hydraulic cylinder 12, base 13, rod set tight fixed bolt 14, pipe 15.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in further detail.
One kind treats Coiling Welded Pipe edge palintrope frock, including top shoe 1, connecting rod fixed block 2, connecting rod 3, upper external mold 4, connecting rod connect
Fishplate bar 5, the connecting rod collar 6, inner membrance connecting rod 7, inner membrance 8, lower external mold 9；The inner membrance 8 is arranged between external mold 4 and lower external mold 9；
The upper surface evagination of the inner membrance 8 is formed above the inner membrance of arcuation, and the lower surface evagination of the inner membrance 8 is formed under the inner membrance of arcuation
Face；The inner membrance 8 is fixed on inner membrance connecting rod 7；The inner membrance connecting rod 7 is horizontally disposed with, and two ends are arranged in the connecting rod collar 6；The company
The bottom of bar connecting plate 5 connects inner membrance connecting rod 7 by the connecting rod collar 6, and top is fixedly installed in the bottom of connecting rod 3；The upper end of the connecting rod 3
Top shoe 1 is connected by by connecting rod fixed block 2；The upper external mold 4 is fixed on the bottom center of top shoe 1, the bottom surface of upper external mold 4
It is recessed the upper outer die face of arcuation；The lower external mold 9 is located at immediately below inner membrance 8, and the upper surface of lower external mold 9 is recessed arcuation
Lower outer die face.
The diameter R1 of the upper outer die face is slightly larger than the diameter R2 above inner membrance；In diameter R3 below the inner membrance is equal to
Diameter R2 above film；The diameter R4 of the lower outer die face is slightly larger than the diameter R3 below inner membrance.Preferably, the ratio of R1/R2
Be worth be 105% ~ 110%, R4/R3 ratio be 105% ~ 110%.The diameter R1 of upper outer die face is slightly larger than the diameter R2 above inner membrance,
To overcome the bounce-back of material.
The both sides of the top shoe 1 are equipped with the lifting support 10 erect and set；The top of the lifting support 10 is fixed and is connected
Connect footstock 11；The footstock 11 is fixed with oil hydraulic cylinder 12；The output end connection top shoe 1 of the oil hydraulic cylinder 12；Described liter of descending branch
The bottom connect base 13 of post 10；The upper face center of the base 13 fixes lower external mold 9.This frock, using general pipe enterprise
Existing steel pipe full circle equipment.This frock can be easily mounted in existing equipment, and completes the content required by technique.
The connecting rod 3 is round bar；The connecting rod fixed block 2 is fixedly welded on the middle part in the rear and front end face of top shoe 1；It is described
Connecting rod 3 is erect and is set, and upper end is connected with nut through the rear thread of connecting rod fixed block 2；The connecting rod 3 is slided with connecting rod fixed block 2
Connection.
The connecting rod connecting plate 5 is surface plate, and upper end is welded with connecting rod 3, and lower end is welded with the connecting rod collar 6；The connecting rod
The axle center of connecting plate 5 and inner membrance 8 is generally aligned in the same plane.Connecting rod is connected as surface plate, to increase the bonding area with the connecting rod collar,
And enough bending strengths are provided, prevent inner membrance from rotating so that connecting rod connection bending.
One kind as claimed in claim 1 treats Coiling Welded Pipe edge palintrope frock, it is characterised in that the connecting rod collar 6 is in
Hollow is cylindric；The two ends of inner membrance connecting rod 7 are arranged in the connecting rod collar 6；The connecting rod collar 6 is threaded with rod set tightening
Bolt 14；The end of rod set tight fixed bolt 14 contacts inner membrance connecting rod 7 after passing through the outer wall of the connecting rod collar 6.
The inner membrance 8 is symmetrical around the eccentric axial of inner membrance 8；The left and right sides of the inner membrance 8 is plane.The both sides of inner membrance 8
It is used to accommodate pipe 15.
The surface of the upper outer die face is coated with one layer of elastic layer；Surface below the inner membrance surface above and inner membrance
It is all covered with one layer of elastic layer；The surface of the lower outer die face is all covered with one layer of elastic layer.Preferably, the elastic layer tool
There is the soft material of certain elasticity, it is preferred to use conventional Belt Conveying rubber strip, damage is produced when preventing steel tube surface from suppressing.
It is a kind of after bending method after Coiling Welded Pipe edge palintrope frock, it is characterised in that comprise the following steps：
Step one, will pass through and bends and be sheathed on outside inner membrance 8 in circular pipe 15, and by the opening of pipe 15
Set upward, between the edge straight section of pipe 15 is located above upper outer die face and inner membrance；
Step 2, oil hydraulic cylinder 12 is acted, and promotes top shoe 1 descending along lifting support 10, under upper external mold 4 and the synchronization of inner membrance 8
OK, the bottom of pipe 15 touches inner membrance 8 after lower external mold 9 and stops descending, the connecting rod 3 and connecting rod fixed block 2 is relative slides, connecting rod 3
On nut be separated with connecting rod fixed block 2；Top shoe 1 is continued traveling downwardly, and upper external mold 4 and inner membrance 8 produce relative movement, Zhi Daoshang
External mold 4 by the edge straight section of pipe 15 be located in above upper outer die face and inner membrance between and keep a period of time；
Step 3, oil hydraulic cylinder 12 is acted, and promotes top shoe 1 up along lifting support 10, and upper external mold 4 is up and de- with inner membrance 8
From then, the connecting rod 3 and connecting rod fixed block 2 are slided relatively, until the nut on connecting rod 3 is mutually contacted with connecting rod fixed block 2
Afterwards, top shoe 1 pulls the uplink synchronization of inner membrance 8 by connecting rod 3；Inner membrance 8 and lower external mold 9 depart from, and complete the edge straight flange of pipe 15
The compacting of section.
The present invention is illustrated according to embodiment, on the premise of present principles are not departed from, if the present apparatus can also make
Dry deformation and improvement.It should be pointed out that the technical scheme that the mode such as all use equivalents or equivalent transformation is obtained, all falls within this
In the protection domain of invention.
Claims (9)
1. one kind treats Coiling Welded Pipe edge palintrope frock, it is characterised in that including top shoe（1）, connecting rod fixed block（2）, connecting rod
（3）, upper external mold（4）, connecting rod connecting plate（5）, the connecting rod collar（6）, inner membrance connecting rod（7）, inner membrance（8）, lower external mold（9）；In described
Film（8）It is arranged at external mold（4）With lower external mold（9）Between；The inner membrance（8）Upper surface evagination formed on the inner membrance of arcuation
Face, the inner membrance（8）Lower surface evagination formed arcuation inner membrance below；The inner membrance（8）It is fixed on inner membrance connecting rod（7）；Institute
State inner membrance connecting rod（7）Horizontally disposed, two ends are arranged in the connecting rod collar（6）；The connecting rod connecting plate（5）Bottom passes through the connecting rod collar
（6）Connection inner membrance connecting rod（7）, top is fixedly installed in connecting rod（3）Bottom；The connecting rod（3）Upper end is fixed by by connecting rod
Block（2）Connection top shoe（1）；The upper external mold（4）It is fixed on top shoe（1）Bottom center, upper external mold（4）Bottom surface concave shaped
Into the upper outer die face of arcuation；The lower external mold（9）Positioned at inner membrance（8）Underface, and lower external mold（9）Upper surface is recessed arcuation
Lower outer die face.
2. one kind as claimed in claim 1 treats Coiling Welded Pipe edge palintrope frock, it is characterised in that the diameter of the upper outer die face
Slightly larger than the diameter above inner membrance；Diameter below the inner membrance is equal to the diameter above inner membrance；The diameter of the lower outer die face
Slightly larger than the diameter below inner membrance.
3. one kind as claimed in claim 1 treats Coiling Welded Pipe edge palintrope frock, it is characterised in that the top shoe（1）Both sides
It is equipped with the lifting support erect and set（10）；The lifting support（10）Top is fixedly connected footstock（11）；The footstock
（11）It is fixed with oil hydraulic cylinder（12）；The oil hydraulic cylinder（12）Output end connection top shoe（1）；The lifting support（10）Bottom
Connect base（13）；The base（13）Upper face center fix lower external mold（9）.
4. one kind as claimed in claim 3 treats Coiling Welded Pipe edge palintrope frock, it is characterised in that the connecting rod（3）It is round bar；
The connecting rod fixed block（2）It is fixedly welded on top shoe（1）The middle part in rear and front end face；The connecting rod（3）Erect and set, upper end
Through connecting rod fixed block（2）Rear thread is connected with nut；The connecting rod（3）With connecting rod fixed block（2）It is slidably connected.
5. one kind as claimed in claim 4 treats Coiling Welded Pipe edge palintrope frock, it is characterised in that the connecting rod connecting plate（5）
It is surface plate, upper end and connecting rod（3）Welding, lower end and the connecting rod collar（6）Welding；The connecting rod connecting plate（5）And inner membrance（8）'s
Axle center is generally aligned in the same plane.
6. one kind as claimed in claim 1 treats Coiling Welded Pipe edge palintrope frock, it is characterised in that the connecting rod collar（6）It is in
Hollow is cylindric；The inner membrance connecting rod（7）Two ends are arranged in the connecting rod collar（6）；The connecting rod collar（6）It is threaded with bar
Set tight fixed bolt（14）；The rod set tight fixed bolt（14）End contacts inner membrance connecting rod（7）.
7. one kind as claimed in claim 1 treats Coiling Welded Pipe edge palintrope frock, it is characterised in that the inner membrance（8）Around inner membrance
（8）Eccentric axial it is symmetrical；The inner membrance（8）The left and right sides be plane.
8. one kind as claimed in claim 2 treats Coiling Welded Pipe edge palintrope frock, it is characterised in that the surface of the upper outer die face
It is coated with one layer of elastic layer；Surface below the inner membrance surface above and inner membrance is all covered with one layer of elastic layer；Under described
The surface of outer die face is all covered with one layer of elastic layer.
9. using as claimed in claim 4 a kind of after bending method after Coiling Welded Pipe edge palintrope frock, it is characterised in that including
Following steps：
Step one, will pass through and bends and in circular pipe（15）It is sheathed on inner membrance（8）Outside, and by pipe（15）'s
Set upward at opening, pipe（15）Edge straight section be located above upper outer die face and inner membrance between；
Step 2, oil hydraulic cylinder（12）Action, promotes top shoe（1）Along lifting support（10）It is descending, upper external mold（4）And inner membrance
（8）Equal DL synchronization, pipe（15）Bottom touches lower external mold（9）Inner membrance afterwards（8）Stop descending, the connecting rod（3）It is solid with connecting rod
Determine block（2）It is relative to slide, connecting rod（3）On nut and connecting rod fixed block（2）It is separated；Top shoe（1）Continue traveling downwardly, upper external mold
（4）And inner membrance（8）Relative movement is produced, until upper external mold（4）By pipe（15）Edge straight section be located in outer die face and
Between above inner membrance and keep a period of time；
Step 3, oil hydraulic cylinder（12）Action, promotes top shoe（1）Along lifting support（10）It is up, upper external mold（4）It is up and with
Inner membrance（8）Depart from, then, the connecting rod（3）With connecting rod fixed block（2）It is relative to slide, until connecting rod（3）On nut and connecting rod
Fixed block（2）After mutually contacting, top shoe（1）By connecting rod（3）Pull inner membrance（8）Uplink synchronization；Inner membrance（8）With lower external mold（9）
Depart from, complete pipe（15）Edge straight section compacting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611257232.0A CN106694719B (en) | 2016-12-30 | 2016-12-30 | One kind behind Coiling Welded Pipe edge curved tooling and after bending method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611257232.0A CN106694719B (en) | 2016-12-30 | 2016-12-30 | One kind behind Coiling Welded Pipe edge curved tooling and after bending method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106694719A true CN106694719A (en) | 2017-05-24 |
| CN106694719B CN106694719B (en) | 2018-11-20 |
Family
ID=58905250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611257232.0A Active CN106694719B (en) | 2016-12-30 | 2016-12-30 | One kind behind Coiling Welded Pipe edge curved tooling and after bending method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106694719B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56109111A (en) * | 1980-02-01 | 1981-08-29 | Nisshin Steel Co Ltd | Remover for internal bead of welded pipe |
| JP2006306248A (en) * | 2005-04-28 | 2006-11-09 | Showa Denko Kk | Steering support beam and manufacturing method thereof |
| CN102164691A (en) * | 2008-09-25 | 2011-08-24 | 杰富意钢铁株式会社 | Method of manufacturing closed structural member, press-forming device, and closed structural member |
| CN202316812U (en) * | 2011-11-14 | 2012-07-11 | 安徽省天旭茶业有限公司 | Joint sealing die for tea packaging tank |
| CN104174693A (en) * | 2014-08-07 | 2014-12-03 | 浙江兄弟之星汽配有限公司 | Board round tube molding method and board round tube molding mould |
| CN104548632A (en) * | 2013-10-18 | 2015-04-29 | 南通中集罐式储运设备制造有限公司 | Tubular film distributor with window and processing method and equipment of tubular film distributor |
| CN206604961U (en) * | 2016-12-30 | 2017-11-03 | 浙江久立特材科技股份有限公司 | One kind treats Coiling Welded Pipe edge palintrope frock |
-
2016
- 2016-12-30 CN CN201611257232.0A patent/CN106694719B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56109111A (en) * | 1980-02-01 | 1981-08-29 | Nisshin Steel Co Ltd | Remover for internal bead of welded pipe |
| JP2006306248A (en) * | 2005-04-28 | 2006-11-09 | Showa Denko Kk | Steering support beam and manufacturing method thereof |
| CN102164691A (en) * | 2008-09-25 | 2011-08-24 | 杰富意钢铁株式会社 | Method of manufacturing closed structural member, press-forming device, and closed structural member |
| CN202316812U (en) * | 2011-11-14 | 2012-07-11 | 安徽省天旭茶业有限公司 | Joint sealing die for tea packaging tank |
| CN104548632A (en) * | 2013-10-18 | 2015-04-29 | 南通中集罐式储运设备制造有限公司 | Tubular film distributor with window and processing method and equipment of tubular film distributor |
| CN104174693A (en) * | 2014-08-07 | 2014-12-03 | 浙江兄弟之星汽配有限公司 | Board round tube molding method and board round tube molding mould |
| CN206604961U (en) * | 2016-12-30 | 2017-11-03 | 浙江久立特材科技股份有限公司 | One kind treats Coiling Welded Pipe edge palintrope frock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106694719B (en) | 2018-11-20 |
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