CN104722645B - A kind of U-shaped steel bracket mould and forming method - Google Patents
A kind of U-shaped steel bracket mould and forming method Download PDFInfo
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- CN104722645B CN104722645B CN201510076332.2A CN201510076332A CN104722645B CN 104722645 B CN104722645 B CN 104722645B CN 201510076332 A CN201510076332 A CN 201510076332A CN 104722645 B CN104722645 B CN 104722645B
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- radius
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- bending
- curvature
- stamping die
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 37
- 239000010959 steel Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005452 bending Methods 0.000 claims abstract description 58
- 238000004080 punching Methods 0.000 claims abstract description 18
- 238000000465 moulding Methods 0.000 claims description 18
- 238000007493 shaping process Methods 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000013000 roll bending Methods 0.000 description 5
- 238000000748 compression moulding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002699 waste material Substances 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a kind of U-shaped steel bracket mould and forming method, mould includes stamping die and stent, stent includes the bending die of some different curvature radius, each bending die is superimposed in turn and fixed on fixed die holder according to radius of curvature size, and the downside of fixed die holder has lifting column；Stamping die is made up of some radius of curvature identicals bending slide block；Each bending slide block on the stamping die is connected from the punching press oil cylinder of different strokes, and the radius of curvature of the stamping die when bending die of least radius is in minimum stroke with all punching press oil cylinders is identical；The cylinder head of punching press oil cylinder is connected to the upper end of workbench, and one end of workbench is connected in frame by telescopic oil cylinder.The stent of the present invention and stamping die are constituted by the bending slide block of same curvature radius, can shape different circular arcs according to the radius of curvature of workpiece, and interchangeability is high, need not configure various moulds, reduce cost.
Description
Technical field
The present invention relates to the forming method of a kind of mould and workpiece, and in particular to a kind of U-shaped steel bracket mould with
And forming method.
Background technology
U-shaped steel bracket has contractibility and reliable and stable bearing capacity compared with other rigid supports, adapts to loose and soft surrounding rock
Load and deformation, and scetion utilization is high, bracket support is convenient, a little repair, and support utilization and recycle rate is high, material source is wide,
Support process is simple, is therefore widely used in metal mine, deep coalmining tunnel, in engineering tunnel supporting.Due to U-shaped
Steel is odd-shaped cross section high intensity shaped steel, and the complicated resilience and deformation defect in the presence of BENDING PROCESS is to affect machining accuracy most main
The factor that wants.Bending springback is also to affect always, restrict molding and rolling die design, product quality and improve production and imitate simultaneously
The key factor of rate, and the key factor of restriction raising section bar roll bending formation equipment automation control level.
Traditional U-shaped steel processing, usually first quenched, aftershaping, not only need in forming process larger power but also
The mechanical performance of quenched U-shaped steel is had significantly to be reduced, because the elastic modelling quantity of quenched U-shaped steel is larger, rebounds after molding
Amount is big, causes the concordance of support poor, and adjustment to be repeated can be only achieved design size, be extremely difficult to expected effect.
In prior art, U-shaped steel forming machine mainly has two big class, and a class is compression molding forming machine, and a class is roller pressing forming machine.
Compression molding forming machine has two kinds：One kind is mould formula, piecewise compression molding, end noresidue straightway, it is adaptable to fixed bent
The production in enormous quantities of rate radius, and different curvature radius need to be equipped with different moulds, mould consumption is very big, and mould is casting
Part, manufactures and designs difficulty, and production cost is high, and the change of U-shaped steel matter directly affects product compacting quality；Another kind is two one
Top formula, two ends roller groove support U-shaped steel lip, need template pair at the top of oil cylinder between die top pressure roller in the middle part of U-shaped steel
According to it is piecewise compressing that edge-to-edge presses, easy to adjust, is suitable to the U-shaped steel bracket that small lot processes different curvature radius, end
Residual straightway is longer, and the curvature of processing is uneven, and when serious, edge occurs that obvious waveform manufacturing deficiency even occurs
Distortion, low production cost but poor product quality.Roller pressing forming machine mainly has asymmetric three-roller type roll bending, side roller advanceable four-roller roller
Curved, side roller swing type four-roller roll bending, deputy roller swing type four-roller roll bending, six roller swing type roll bendings etc., predominantly semiautomatic equipment, raw
Product machined parameters are still based on the setting-out of artificial tradition, manually adjusting, cumbersome during regulation processing radius of curvature, even if same
Under the working condition of one machined parameters, as long as the material composition of U-shaped steel is varied from, just from motion tracking and processing ginseng cannot be revised
Number, only setting-out adjustment control parameter can just produce qualified products again, and there are residual straightway, equipment in shaped article end
Complex structure, volume are big, automaticity is low, manufacturing procedure is more, waste of material is serious, production cost is high.
Content of the invention
For solving problems of the prior art, the present invention provides a kind of U-shaped steel mould and forming method, carries
Mechanical strength after high U-shaped steel molding, it is ensured that the stability of physical dimension after U-shaped steel molding；It is applied to the U of multiple radius of curvature
Shaped steel molding, cost are relatively low, simple production process.
The technical scheme for being adopted to achieve these goals：A kind of U-shaped steel bracket mould, including stamping die and admittedly
Cover half, workpiece are fixed on work piece holder, and stent includes the bending die of some different curvature radius, and each bending die is according to song
Rate radius size is superimposed in turn and fixed on fixed die holder, and the downside of fixed die holder has lifting column；If stamping die is by dry medium
Rate radius identical bending slide block composition, the arc summit of all bending dies on same vertical line, the center of circle of all bending dies with
And the center of circle of stamping die is located in same vertical；Each the bending punching oil of slide block from different strokes on the stamping die
Cylinder is connected, and the radius of curvature of the stamping die when bending die of least radius and all punching press oil cylinders are in minimum stroke is identical；Punching
The cylinder head of compressing cylinder is connected to the upper end of workbench, and one end of workbench is connected in frame by telescopic oil cylinder.
Further, there is fixed interval (FI) between each bending die, and is connected by connector.Work can further be improved
The degree of accuracy of part molding, prevents from interfering between each bending die.
Further, water injector is connected with the side of work piece holder.Workpiece heat is squeezed into after set point of temperature
Type, subsequent water-spraying control so that shaping is once completed with quenched, reduces manufacturing procedure.
A kind of method of U-shaped steel bracket molding, the first step, U-shaped steel carry out blanking by required size；
Second step, puts the workpiece in；
3rd step, is put into extrusion molding in above-mentioned U-shaped steel bracket mould；
4th step, carries out water-spraying control Quenching Treatment to shaping workpiece, and workpiece temperature is down to 60～85 DEG C；
5th step, the shaping workpiece after Quenching Treatment are put into, temperature be 350～
450 DEG C, and maintain one hour, then natural cooling.
In 3rd step the step of extrusion molding be, 1) adjust lifting column lifting, until required diameter bending die with
Stamping die is in same level；
If 2) radius of workpiece to be punched is identical with the radius of the bending die of minimum curvature and stamping die, using flexible oil
Cylinder push work platform and stamping die, by workpiece top to be punched to punch forming at stent；
3) if the radius of workpiece to be punched is the radius of curvature of other bending dies, push the work forward first with telescopic oil cylinder
Platform and stamping die until the center of circle of stamping die is overlapped with the center of circle of the bending die of desired curvature radius, then using punching press oil cylinder according to
Secondary slide block top will be bent to stent by workpiece punch forming along radial direction.
The stamping die of the present invention is made up of the bending slide block of same curvature radius, can be shaped according to the radius of curvature of workpiece
Different circular arcs, interchangeability are high, need not configure various moulds, greatly reduce cost；Workpiece heat is extruded to after set point of temperature
Molding, subsequent water-spraying control so that shaping is once completed with quenched, reduces manufacturing procedure；The workpiece made using the present invention
It is quenched after first molding, improves the mechanical property of U-shaped steel bracket.
Description of the drawings
Fig. 1 is the front view of the present invention；
Top views of the Fig. 2 for Fig. 1；
Schematic diagrams of the Fig. 3 for heating furnace.
In figure：10th, stamping die；11st, slide block is bent；12nd, punching press oil cylinder；13rd, workbench；20th, stent；21、22、23、
24th, the bending die of 25,26 different curvature radius；30th, fixed die holder；40th, lifting column；50th, telescopic oil cylinder；60th, frame；70、
Heating furnace；80th, work piece holder；91st, 92,93,93,95,96 each bending die center of circle；
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, a kind of U-shaped steel bracket mould, including stamping die 10 and stent 20, workpiece is fixed
On work piece holder 80, stent 20 includes the bending die 21,22,23,24,25,26 of some different curvature radius, each bending
Mould is superimposed in turn and fixed on fixed die holder 30 according to radius of curvature size, and the downside of fixed die holder 30 has lifting column 40；
Stamping die 10 by some radius of curvature identicals bend slide block 11 constitute, the arc summit of all bending dies on same vertical line,
The center of circle of the center of circle of all bending dies and stamping die 10 is located in same vertical；Each bending on the stamping die 10 is slided
Block 11 is connected from the punching press oil cylinder 12 of different strokes, and the bending die 21 of least radius is in minimum row with all punching press oil cylinders 12
The radius of curvature of the stamping die 10 during journey is identical；The cylinder head of punching press oil cylinder is connected to the upper end of workbench 13, one end of workbench
It is connected in frame 60 by telescopic oil cylinder 50.
Further, there is fixed interval (FI) between each bending die, and is connected by connector.Work can further be improved
The degree of accuracy of part molding, prevents from interfering between each bending die.
Further, water injector is connected with the side of work piece holder 80.Workpiece heat is extruded to after set point of temperature
Molding, subsequent water-spraying control so that shaping is once completed with quenched, reduces manufacturing procedure.
A kind of method of U-shaped steel bracket molding, the first step, U-shaped steel carry out blanking by required size；
Second step, as shown in figure 3, put the workpiece in；
3rd step, is put into extrusion molding in above-mentioned U-shaped steel bracket mould；
4th step, carries out water-spraying control Quenching Treatment to shaping workpiece, and workpiece temperature is down to 60～85 DEG C；
5th step, the shaping workpiece after Quenching Treatment are put into, temperature be 350～
450 DEG C, and maintain one hour, then natural cooling.
As depicted in figs. 1 and 2, the present embodiment be provided with 6 different bending dies of radius of curvature (as shown in Fig. 2 21,22,
23rd, 24,25,26 successively according to the bending die of the big minispread of radius of curvature), stamping die is made up of 11 bending slide blocks, and bending is slided
The radius of block is identical with the radius of minimum curvature bending die, and the center of circle of all bending dies is with the center of circle of stamping die in same level
On line, all bending dies are tangent in apex.
When extrusion molding works in second step, adjust the lifting of lifting column 40 first, and then drive fixed 30 liters of die holder
Drop, until the bending die and stamping die of required diameter are in same level；If the radius of workpiece to be punched and minimum curvature
Bending die is identical with the radius of stamping die, then using 50 push work platform of telescopic oil cylinder and stamping die, by workpiece top to be punched extremely
Punch forming at stent；If the radius of workpiece to be punched is the radius of curvature of other bending dies, first with telescopic oil cylinder
50 push work platforms and stamping die are overlapped up to the center of circle of stamping die with the center of circle of the bending die of desired curvature radius, (such as Fig. 2 institutes
Show, 91,92,93,93,95,96 are respectively the home position of each bending die) and then punching press oil cylinder is utilized successively along radius side
To will bending slide block top to stent by workpiece punch forming；The stroke of each punching press oil cylinder is set all in accordance with corresponding punching press path
Put, to ensure required stamping press.
The stamping die of the present invention is made up of the bending slide block of same curvature radius, can be according to the radius of curvature molding of workpiece
Different circular arcs, interchangeability are high, need not configure various moulds, greatly reduce cost；Workpiece heat is extruded to after set point of temperature
Molding, subsequent water-spraying control finally carry out temper so that molding and quenched once complete, reduce manufacturing procedure；Utilize
The workpiece that the present invention makes is quenched after first molding, improves the mechanical property of U-shaped steel bracket.
Claims (5)
1. a kind of U-shaped steel bracket mould, including stamping die (10) and stent (20), workpiece is fixed on work piece holder (80)
On, it is characterised in that：Stent (20) includes the bending die (21,22,23,24,25,26) of some different curvature radius, each
Bending die is superimposed in turn and fixed on fixed die holder (30) according to radius of curvature size, and the downside of fixed die holder (30) has lifting
Column (40)；Stamping die (10) is made up of some radius of curvature identicals bending slide block (11), and the arc summit of all bending dies exists
On same vertical line, the center of circle of the center of circle of all bending dies and stamping die (10) is located in same vertical；The stamping die
(10) each bending slide block (11) on is connected from the punching press oil cylinder (12) of different strokes, the bending die (21) of least radius with
All punching press oil cylinder (12) be in minimum stroke when stamping die (10) radius of curvature identical；The cylinder head of punching press oil cylinder is connected to
The upper end of workbench (13), one end of workbench are connected in frame (60) by telescopic oil cylinder (50).
2. U-shaped steel bracket mould as claimed in claim 1, it is characterised in that：Have between each bending die between fixing
Gap, and be connected by connector.
3. U-shaped steel bracket mould as claimed in claim 1 or 2, it is characterised in that：Connect in the side of work piece holder (80)
It is connected to water injector.
4. a kind of method of U-shaped steel bracket molding, it is characterised in that：
The first step, U-shaped steel carry out blanking by required size；
Second step, puts the workpiece in；
3rd step, is put into extrusion molding in the U-shaped steel bracket mould described in claim 1 or 2；
4th step, carries out water-spraying control Quenching Treatment to shaping workpiece, and workpiece temperature is down to 60～85 DEG C；
5th step, the shaping workpiece after Quenching Treatment are put into, and temperature is 350～450 DEG C,
And maintain one hour, then natural cooling.
5. the method for U-shaped steel bracket molding as claimed in claim 4, it is characterised in that：In 3rd step the step of extrusion molding
For the 1) lifting of adjustment lifting column (40), until the bending die and stamping die of required diameter are in same level；
If 2) radius of workpiece to be punched is identical with the radius of the bending die of minimum curvature and stamping die, using telescopic oil cylinder
(50) push work platform (13) and stamping die (10), by workpiece top to be punched to punch forming at stent；
If 3) radius of workpiece to be punched is the radius of curvature of other bending dies, push the work forward first with telescopic oil cylinder (50)
Platform (13) and stamping die (10) are overlapped up to the center of circle of stamping die (10) with the center of circle of the bending die of desired curvature radius, Ran Houli
Slide block (11) will be bent along radial direction successively with punching press oil cylinder (12) to push up workpiece punch forming to stent (20) place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076332.2A CN104722645B (en) | 2015-02-12 | 2015-02-12 | A kind of U-shaped steel bracket mould and forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076332.2A CN104722645B (en) | 2015-02-12 | 2015-02-12 | A kind of U-shaped steel bracket mould and forming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104722645A CN104722645A (en) | 2015-06-24 |
| CN104722645B true CN104722645B (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510076332.2A Active CN104722645B (en) | 2015-02-12 | 2015-02-12 | A kind of U-shaped steel bracket mould and forming method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107505114B (en) * | 2017-09-01 | 2019-09-13 | 西北工业大学 | Reliability test fixture under aircraft siding high speed impact |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54121273A (en) * | 1978-03-14 | 1979-09-20 | Sumitomo Metal Ind Ltd | Bending apparatus and method for tubing |
| CN201168733Y (en) * | 2008-03-28 | 2008-12-24 | 枣庄矿业（集团）有限责任公司柴里煤矿 | Small radius, large angle U type steel shed holding bend processing apparatus |
| CN203484529U (en) * | 2013-09-16 | 2014-03-19 | 无锡市派克重型铸锻有限公司 | Mold for bending flange pedal |
| CN103894459A (en) * | 2014-04-30 | 2014-07-02 | 成都海凌达机械有限公司 | Pipe bending machine |
| CN204638882U (en) * | 2015-02-12 | 2015-09-16 | 武文成 | U-shaped steel bracket mould |
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Effective date of registration: 20201209 Address after: 221000 Cotton Industrial Park, Liuji Town, Tongshan District, Xuzhou City, Jiangsu Province Patentee after: Xuzhou huazhimei New Material Technology Co.,Ltd. Address before: 235000, room 2, building 10, 0404 ancient town road, Xiangshan County, Huaibei, Anhui Patentee before: Wu Wencheng |