CN104759537B - A kind of particular manufacturing craft that angle steel is bent to U-shaped - Google Patents
A kind of particular manufacturing craft that angle steel is bent to U-shaped Download PDFInfo
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- CN104759537B CN104759537B CN201510163425.9A CN201510163425A CN104759537B CN 104759537 B CN104759537 B CN 104759537B CN 201510163425 A CN201510163425 A CN 201510163425A CN 104759537 B CN104759537 B CN 104759537B
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- lower mold
- fixed plate
- rectangle
- mold
- angle steel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 56
- 239000010959 steel Substances 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000005452 bending Methods 0.000 claims abstract description 22
- 230000000712 assembly Effects 0.000 claims description 14
- 238000000429 assembly Methods 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 11
- 238000000465 moulding Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007704 transition 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
A kind of particular manufacturing craft that angle steel bends to U-shaped, it relates to a kind of mould by angle steel bending forming.Till solving up to now, the problem that no-trump angle steel bends to the particular manufacturing craft of U-shaped.The bottom of lower mold is arranged in the rectangle installing hole of lower mold fixed plate, the rectangular boss of lower mold is arranged in the rectangle shoulder hole of lower mold fixed plate, the top of upper mold is arranged in the rectangle installing hole of upper mould fixed plate, the rectangular boss of upper mold is arranged in the rectangle shoulder hole of upper mould fixed plate, below upper mold two end angles are nose circle angle, the length of the rectangle upright plate of upper mold with spacing between bending U-shaped angle steel two medial surface equal；Lower mold fixed plate is arranged on die shoe upper surface and the two is detachably fastenedly connected, and upper mould fixed plate is arranged on upper bolster lower surface and the two is detachably fastenedly connected；Upper mold is detachably fastenedly connected with back pieces device and side shield.The mould of the present invention is exclusively used in and angle steel is bent to U-shaped.
Description
Technical field
The present invention relates to a kind of mould by angle steel bending forming, belong to machining Sheet Metal Forming Technology and mould
Design field.
Background technology
Punching press is a kind of process of machining, is to use forcing press to be added metal blank by mould
Pressure so that it is produce plastic deformation, thus obtain the part of definite shape, size and performance, it is machinery
One of processing method important in manufacture.The part category utilizing process for stamping to produce is a lot, its molding side
Method is the most varied, by molding procedure kind, sums up point two big classes, and one is separation circuit, and two are
Molding procedure.Molding procedure refers under conditions of not destroying material, makes material generation plastic deformation, from
And obtain the product of required form and size.Bending operation is the one of molding, and bool includes multiple shape
Formula, wherein U-bend song is exactly one therein.Bending ram is typically all and is curved sheet material, right
In section bar (such as angle steel), being difficult to be curved section bar (angle steel) with process for stamping, shape bending is maximum
Problem be exactly buckling deformation, especially angle steel little radius of curvature bending, it is easy to buckling deformation, therefore
Urgently need to design a kind of particular manufacturing craft that angle steel can bend to U-shaped.
Summary of the invention
It is an object of the invention to provide a kind of particular manufacturing craft that angle steel is bent to U-shaped, to solve cut-off mesh
Till before, the problem that no-trump angle steel bends to the particular manufacturing craft of U-shaped.
For achieving the above object, the technical scheme taked is as follows for the present invention:
A kind of particular manufacturing craft that angle steel bends to U-shaped, it includes upper die component and lower mold assemblies, described
Upper die component be positioned at the surface of lower mold assemblies, upper die component include upper bolster, upper mould fixed plate, on
Mould, back pieces device and side shield；Lower mold assemblies includes die shoe, lower mold fixed plate and lower mold；Described is upper
Die holder and die shoe are rectangular slab, upper bolster and die shoe and are all horizontally disposed with；Under described lower mold
The upper end of end and upper mold is rectangular boss, and the upper end of lower mold and the lower end of upper mold are rectangle upright plate,
The rectangular boss of lower mold is made as one with the rectangle upright plate lower end of lower mold, and the rectangular boss of upper mold is with upper
The rectangle upright plate upper end of mould is made as one；Lower mold fixed plate upper surface center and upper mould fixed plate
Lower surface center is machined with rectangle installing hole respectively；Lower mold fixed plate lower surface center and on
Mould fixed plate upper surface center is machined with rectangle shoulder hole respectively；The rectangle installing hole of lower mold fixed plate
Communicate with the rectangle shoulder hole of lower mold fixed plate, the rectangle installing hole of upper mould fixed plate and upper mould fixed plate
Rectangle shoulder hole communicates；The rectangle upright plate bottom of lower mold is arranged on the rectangle installing hole of lower mold fixed plate
In and the two interference fits, in the rectangular boss of lower mold is arranged on the rectangle shoulder hole of lower mold fixed plate and two
Person's matched in clearance, is provided with U-lag in the middle part of the upper surface of lower mold, be provided with use in the middle part of the U-lag bottom surface of lower mold
Accommodate the deep gouge of back pieces device, the one side upper end that lower mold is paralleled and U-lag side with its long limit
Edge is machined with the square groove communicated；
In the rectangle upright plate top of upper mold is arranged on the rectangle installing hole of upper mould fixed plate and the two transition
Coordinate, in the rectangular boss of upper mold is arranged on the rectangle shoulder hole of upper mould fixed plate and the two matched in clearance,
Two end angles below upper mold are nose circle angle, described nose circle angular radius and bending U-shaped angle steel
Fillet radius identical, the length of the rectangle upright plate of upper mold with institute bending U-shaped angle steel two in
Spacing between side is equal；Lower mold fixed plate is arranged on die shoe upper surface and the two detachable company of fastening
Connecing, upper mould fixed plate is arranged on upper bolster lower surface and the two is detachably fastenedly connected；Upper mold one side with
Back pieces device is detachably fastenedly connected, described side shield be arranged on upper mold another side and with back pieces device phase
To setting, side shield is detachably fastenedly connected with upper mold.
The present invention provides the benefit that relative to prior art:
Utilize the mould of the present invention when angle steel is bent to U-shaped, it is ensured that vertical with axis of bending is straight
The arm of angle not unstability, it is ensured that the angle steel right-angle side flexural deformation position vertical with axis of bending and not deformed position
Keeping parallelism, place in the same plane, does not occur unstable phenomenon (during angle steel bending, substantially to bend
Deforming at fillet, other positions are indeformable, if there is unstability in deformation position, and would not be with indeformable
Position is in the same plane) utilize the mould of the present invention can process U-shaped angle steel workpiece in high volume,
Time saving and energy saving, improve work efficiency, work efficiency can improve 50 times, reduces production cost, every
Cost about 150 yuan can be reduced.
Accompanying drawing explanation
Fig. 1 is a kind of particular manufacturing craft front view that angle steel bends to U-shaped of the present invention；
Fig. 2 is Fig. 1 left view；
Fig. 3 is Fig. 1 top view；
Fig. 4 is the K direction view of Fig. 2；
Fig. 5 is lower mold assemblies front view；
Fig. 6 is Fig. 5 left view；
Fig. 7 is upper die component front view；
Fig. 8 is Fig. 7 left view；
Fig. 9 is the P direction view of Fig. 8；
Figure 10 is U-shaped angle steel front view；
Figure 11 is Figure 10 top view；
Figure 12 is Figure 10 left view.
Wherein, die shoe 1-1, lower mold fixed plate 1-2, lower mold 1-3, under hang mould post 1-4, U-lag
1-5, deep gouge 1-6, square groove 1-7, upper bolster 2-1, hang oneself mould post 2-2, upper mould fixed plate
2-3, upper mold 2-4, back pieces device 2-5, side shield 2-6, U-shaped angle steel 3.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Detailed description of the invention one: as shown in Fig. 1～Figure 12, a kind of die for special purpose that angle steel is bent to U-shaped
Having, it includes that upper die component and lower mold assemblies, described upper die component are positioned at the surface of lower mold assemblies,
Upper die component includes upper bolster 2-1, upper mould fixed plate 2-3, upper mold 2-4, back pieces device 2-5 and side shield
2-6；Lower mold assemblies includes die shoe 1-1, lower mold fixed plate 1-2 and lower mold 1-3；Described upper bolster
2-1 and die shoe 1-1 is rectangular slab, upper bolster 2-1 and die shoe 1-1 and is all horizontally disposed with；Institute
The lower end of lower mold 1-3 stated and the upper end of upper mold 2-4 are rectangular boss, the upper end of lower mold 1-3 and on
The lower end of mould 2-4 is rectangle upright plate, the rectangular boss of lower mold 1-3 and the rectangle of lower mold 1-3
Upright plate lower end is made as the rectangle upright plate upper end of one, the rectangular boss of upper mold 2-4 and upper mold 2-4
It is made as one；Lower mold fixed plate 1-2 upper surface center and upper mould fixed plate 2-3 lower surface centre bit
Put and be machined with rectangle installing hole respectively；Lower mold fixed plate 1-2 lower surface center and upper mould fixed plate
2-3 upper surface center is machined with rectangle shoulder hole respectively；The rectangle installing hole of lower mold fixed plate 1-2
Communicate with the rectangle shoulder hole of lower mold fixed plate 1-2, the rectangle installing hole of upper mould fixed plate 2-3 and upper mold
The rectangle shoulder hole of fixed plate 2-3 communicates；It is solid that the rectangle upright plate bottom of lower mold 1-3 is arranged on lower mold
In determining the rectangle installing hole of plate 1-2 and the two interference fits, the rectangular boss of lower mold 1-3 is arranged on lower mold
In the rectangle shoulder hole of fixed plate 1-2 and the two matched in clearance, in the middle part of the upper surface of lower mold 1-3, it is provided with U
Shape groove 1-5, is provided with the deep gouge for accommodating back pieces device 2-5 in the middle part of the U-lag 1-5 bottom surface of lower mold 1-3
1-6, the one side upper end that lower mold 1-3 is paralleled with its long limit and U-lag 1-5 mono-lateral edges add
Work has the square groove 1-7 communicated；
In the rectangle upright plate top of upper mold 2-4 is arranged on the rectangle installing hole of upper mould fixed plate 2-3 and
The two interference fits, the rectangular boss of upper mold 2-4 is arranged in the rectangle shoulder hole of upper mould fixed plate 2-3
And the two matched in clearance, two end angles below upper mold 2-4 are respectively nose circle angle, described nose circle angle half
Footpath with the fillet radius of bending U-shaped angle steel 3 identical, the rectangle upright plate of upper mold 2-4
Length with spacing between 3 liang of medial surface of bending U-shaped angle steel equal；Lower mold fixed plate 1-2 sets
Put die shoe 1-1 upper surface and the two be detachably fastenedly connected by bolt, upper mould fixed plate 2-3 sets
Put upper bolster 2-1 lower surface and the two be detachably fastenedly connected by bolt；Upper mold 2-4 one side with
Back pieces device 2-5 is detachably fastenedly connected by bolt, and described side shield 2-6 is arranged on upper mold 2-4
Another side is also oppositely arranged with back pieces device 2-5, and side shield 2-6 and upper mold 2-4 are detachable by bolt
It is fastenedly connected.
The purpose arranging side shield 2-6 is, it is ensured that the right-angle side that angle steel is vertical with axis of bending does not loses
Surely.
The purpose arranging back pieces device 2-5 is, it is ensured that after angle steel bending forming from lower mold 1-3 by under
Pull out the most smoothly.
Preferably, as shown in Fig. 6, Fig. 8, the rectangular boss circumferential lateral surface of described lower mold 1-3 away from
There is between the inner circumferential side in the rectangle shoulder hole of lower mold fixed plate 1-2 the gap of 1mm；Described upper mold
The rectangular boss circumferential lateral surface of 2-4 has between the inner circumferential side in the rectangle shoulder hole of upper mould fixed plate 2-3
There is the gap of 1mm.Purpose is to ensure that the rectangular boss of lower mold 1-3 can be assembled to lower mold fixed plate smoothly
In the rectangle shoulder hole of 1-2.
Preferably, as shown in Fig. 6, Fig. 8, the rectangle shoulder hole of described lower mold fixed plate 1-2
The degree of depth is consistent with the thickness of the rectangular boss of lower mold 1-3；The rectangle platform of described upper mould fixed plate 2-3
The degree of depth in shoulder hole is consistent with the thickness of the rectangular boss of upper mold 2-4.Purpose is to ensure that lower mold 1-3 and upper
Mould 2-4 is immovable in upper and lower vertical direction.
Detailed description of the invention two: as shown in Fig. 1～Fig. 9, the one described in detailed description of the invention one is by angle steel
Bending to the particular manufacturing craft of U-shaped, described lower mold assemblies also includes hanging mould post 1-4 under four, described
Upper die component also includes four mould post 2-2 that hang oneself；Two opposite long sides of described die shoe 1-1 are each
It is provided with under two and hangs mould post 1-4, hang mould post 1-4 under described four by self screw thread and die shoe
Two opposite long sides of 1-1 are threaded, and (i.e. two opposite long sides of die shoe 1-1 are respectively provided with two
Individual screwed hole one, hangs the mould post 1-4 two relatively long sides by self screw thread with die shoe 1-1 under four
Four screwed holes one in face are threaded), two opposite long sides of described upper bolster 2-1 are each provided with
Two mould post 2-2 that hang oneself, described four hang oneself mould post 2-2 by self screw thread and upper bolster 2-1
Two opposite long sides are threaded, and (i.e. two opposite long sides of upper bolster 2-1 are respectively provided with two screw threads
Hole two, hangs oneself on the mould post 2-2 two opposite long sides by self screw thread and upper bolster 2-1 for four
Four screwed holes two are threaded).Arrange down and hang mould post 1-4 and the purpose of mould post 2-2 of hanging oneself is, just
In moving of upper die component and lower mold assemblies.
Detailed description of the invention three: as shown in Figure 1, Figure 2, shown in Fig. 8, the one described in detailed description of the invention one
Angle steel bends to the particular manufacturing craft of U-shaped, and described back pieces device 2-5 is L shaped plate, described in upper mold 2-4
The vertical plate medial surface of one side and L shaped plate be detachably fastenedly connected by bolt.Back pieces device 2-5 is
L shaped plate, while ensureing to be connected fastening with upper mold 2-4, is also convenient for bending U-shaped angle steel 3
Pull out from lower mold 1-3.
As shown in Fig. 1～Figure 12, a kind of particular manufacturing craft that angle steel bends to U-shaped of the present invention is used for liquid
Pressure pressure machine uses, and the die shoe 1-1 of lower mold assemblies is connected fixing with hydraulic press lower table face,
The upper bolster 2-1 of upper die component is connected fixing with hydraulic press top shoe, upper die component and lower mold assemblies
Can mutually disengage, working procedure is as follows: starts hydraulic press, makes hydraulic press top shoe up,
And make upper mold 2-4 lower plane about plane 20mm in lower mold 1-3.Hydraulic press is slack,
Angle steel to be bent is put into from described mould one end upper mold 2-4 lower plane and lower mold 1-3 plane it
Between, make that one right-angle side of described angle steel is parallel to be placed in lower mold 1-3 in plane, another right-angle side of angle steel
It is close on the square groove 1-7 side of lower mold 1-3 side, starts hydraulic press descending, until
Upper and lower mould assembly is of completely closed angle steel is pressed into U-shaped till, stop hydraulic press top shoe descending,
And make hydraulic press top shoe upwards return, until U-shaped angle steel 3 is pulled out lower mold 1-3 by back pieces device 2-5
Till, complete a workpiece (U-shaped angle steel 3) and make cyclic process.
The operation principle of this patent:
As shown in Fig. 1～Figure 12, utilize the plasticity of metal, under the effect of external force, produce permanent deformation,
Thus obtain the workpiece of definite shape and size.The present invention utilizes hydraulic press to pump, band
Dynamic upper die component moves up and down, the U-lag 1-5 shape of lower mold 1-3 and U-shaped angle steel 3 outer shape phase
With, upper mold 2-4 working position (i.e. the lower end of upper mold 2-4) makes and shape phase similar shape in U-shaped angle steel 3
Shape, hydraulic press top shoe drives upper die component to pump.When upper die component is moved downwardly to
Certain position, when making upper mold 2-4 lower plane about plane 20mm in lower mold 1-3, by the one of angle steel
Individual right-angle side is placed in lower mold 1-3 in plane, and another right-angle side of angle steel is close to lower mold 1-3 side
On square groove 1-7 side, start hydraulic press and continue traveling downwardly, until upper and lower membrane module is complete
Till angle steel is pressed into U-shaped by Guan Bi, it is attached to the angle steel right-angle side of lower mold 1-3 side, in lower mold 1-3
Square groove 1-7 side and upper die component side shield 2-6 common effect under, will not lose
Steady deformation.After swaging terminates, stop hydraulic press top shoe descending, and make hydraulic press top shoe
Upwards return, till U-shaped angle steel 3 is pulled out lower mold 1-3 by back pieces device 2-5, completes a workpiece
Make circulation.
It is 50 × 50 × 5mm that the mould of the present invention is particularly well-suited to angle steel specification, bending U-shaped angle
The fillet radius of steel 3 is that (the least bending fillet radius, adds for the U-shaped angle steel workpiece of 50mm
This warp architecture, does not has particular manufacturing craft to realize, more can not process in high volume).
Claims (5)
1. angle steel is bent to a particular manufacturing craft for U-shaped, it is characterized in that: it include upper die component and under
Membrane module, described upper die component is positioned at the surface of lower mold assemblies, upper die component include upper bolster (2-1),
Upper mould fixed plate (2-3), upper mold (2-4), back pieces device (2-5) and side shield (2-6)；Lower mold assemblies
Including die shoe (1-1), lower mold fixed plate (1-2) and lower mold (1-3)；Described upper bolster (2-1)
It is rectangular slab, upper bolster (2-1) and die shoe (1-1) with die shoe (1-1) to be all horizontally disposed with；
The lower end of described lower mold (1-3) and the upper end of upper mold (2-4) are rectangular boss, lower mold (1-3)
Upper end and the lower end of upper mold (2-4) be rectangle upright plate, the rectangular boss of lower mold (1-3) with under
The rectangle upright plate lower end of mould (1-3) is made as one, the rectangular boss of upper mold (2-4) and upper mold (2-4)
Rectangle upright plate upper end be made as one；Lower mold fixed plate (1-2) upper surface center and upper mold are solid
Determine plate (2-3) lower surface center and be machined with rectangle installing hole respectively；Lower mold fixed plate (1-2) following table
Center, face and upper mould fixed plate (2-3) upper surface center are machined with rectangle shoulder hole respectively；
The rectangle installing hole of lower mold fixed plate (1-2) communicates with the rectangle shoulder hole of lower mold fixed plate (1-2), on
The rectangle installing hole of mould fixed plate (2-3) communicates with the rectangle shoulder hole of upper mould fixed plate (2-3)；Lower mold
(1-3) in rectangle upright plate bottom is arranged on the rectangle installing hole of lower mold fixed plate (1-2) and the two
Interference fits, the rectangular boss of lower mold (1-3) is arranged in the rectangle shoulder hole of lower mold fixed plate (1-2)
And the two matched in clearance, it is provided with U-lag (1-5), lower mold (1-3) in the middle part of the upper surface of lower mold (1-3)
U-lag (1-5) bottom surface in the middle part of be provided with the deep gouge (1-6) for accommodating back pieces device (2-5), lower mold (1-3)
The upper one side upper end the most parallel with its long limit and U-lag (1-5) lateral edges are machined with communicate straight
Dihedral groove (1-7)；
The rectangle upright plate top of upper mold (2-4) is arranged on the rectangle installing hole of upper mould fixed plate (2-3)
In and the two interference fits, the rectangular boss of upper mold (2-4) is arranged on the rectangle of upper mould fixed plate (2-3)
Two end angles in shoulder hole and below the two matched in clearance, upper mold (2-4) are respectively nose circle angle, described
Nose circle angular radius with the fillet radius of bending U-shaped angle steel (3) identical, upper mold (2-4)
The length of rectangle upright plate with spacing between bending U-shaped angle steel (3) two medial surface equal；
Lower mold fixed plate (1-2) is arranged on die shoe (1-1) upper surface and the two is detachably fastenedly connected, upper mold
Fixed plate (2-3) is arranged on upper bolster (2-1) lower surface and the two is detachably fastenedly connected；Upper mold (2-4)
One side is detachably fastenedly connected with back pieces device (2-5), and described side shield (2-6) is arranged on upper mold (2-4)
Another side and be oppositely arranged with back pieces device (2-5), side shield (2-6) is removable with upper mold (2-4)
Unload and be fastenedly connected.
A kind of particular manufacturing craft that angle steel bends to U-shaped the most according to claim 1, is characterized in that:
The rectangular boss circumferential lateral surface of described lower mold (1-3) the rectangle shoulder hole away from lower mold fixed plate (1-2)
There is between inner circumferential side the gap of 1mm；The rectangular boss circumferential lateral surface of described upper mold (2-4) is away from upper
There is between the inner circumferential side in the rectangle shoulder hole of mould fixed plate (2-3) gap of 1mm.
A kind of particular manufacturing craft that angle steel bends to U-shaped the most according to claim 1 and 2, it is special
Levy and be: the degree of depth in the rectangle shoulder hole of described lower mold fixed plate (1-2) is convex with the rectangle of lower mold (1-3)
The thickness of platform is consistent；The degree of depth in the rectangle shoulder hole of described upper mould fixed plate (2-3) and upper mold (2-4)
The thickness of rectangular boss consistent.
A kind of particular manufacturing craft that angle steel bends to U-shaped the most according to claim 1, is characterized in that:
Described lower mold assemblies also includes hanging mould post (1-4) under four, and described upper die component also includes that four are hung oneself
Mould post (2-2)；Two opposite long sides of described die shoe (1-1) are each provided with under two hanging mould post
(1-4) the mould post (1-4) two phases by self screw thread with die shoe (1-1) are hung under, described four
Threaded to long side surface, two opposite long sides of described upper bolster (2-1) are each provided with on two
Hanging mould post (2-2), described four hang oneself mould post (2-2) by self screw thread and upper bolster (2-1)
Two opposite long sides are threaded.
A kind of particular manufacturing craft that angle steel bends to U-shaped the most according to claim 1, is characterized in that:
Described back pieces device (2-5) is L shaped plate, the one side described in upper mold (2-4) and the vertical plate of L shaped plate
Medial surface is detachably fastenedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163425.9A CN104759537B (en) | 2015-04-09 | 2015-04-09 | A kind of particular manufacturing craft that angle steel is bent to U-shaped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163425.9A CN104759537B (en) | 2015-04-09 | 2015-04-09 | A kind of particular manufacturing craft that angle steel is bent to U-shaped |
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| Publication Number | Publication Date |
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| CN104759537A CN104759537A (en) | 2015-07-08 |
| CN104759537B true CN104759537B (en) | 2017-01-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107457289B (en) * | 2017-08-02 | 2023-03-14 | 江门市南洋船舶工程有限公司 | Marine square steel step pressing die device |
| CN107639164B (en) * | 2017-10-31 | 2024-03-26 | 徐州徐工施维英机械有限公司 | Workpiece bending die and workpiece bending processing assembly |
| CN109482696A (en) * | 2018-11-30 | 2019-03-19 | 宁波凯荣船用机械有限公司 | Film-type liquefied natural gas cargo tank maintenance system stainless steel wave card ripplet making apparatus and manufacture craft |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE761205A (en) * | 1970-01-28 | 1971-06-16 | Maschf Augsburg Nuernberg Ag | DEVICE FOR BENDING PARTS MADE OF DEFORMABLE MATERIAL, IN PARTICULAR SHEET, IN PARTICULAR FOR THE MANUFACTURE OF DUCTS FOR FUEL ELEMENTS OF NUCLEAR REACTORS |
| DE3629270A1 (en) * | 1985-09-10 | 1987-03-19 | Volkswagen Ag | DEVICE FOR WEAR-FREE SHAPING OF TAILORED SHEET METAL COMPONENTS WITH AT LEAST APPROXIMATELY L-SHAPED OR U-SHAPED CROSS-SECTION OF SHEET METAL CUTTINGS OR SHEET PARTS |
| CN1264621C (en) * | 2003-07-25 | 2006-07-19 | 上海外高桥造船有限公司 | Manufacturing mould for large-scale angular steel plate structure and its use method |
| CN102873186B (en) * | 2012-08-21 | 2016-05-18 | 无锡美业机械制造有限公司 | A kind of roller bearing mould of the U-shaped filter housing for punching press with reinforcement |
| CN204182733U (en) * | 2014-10-15 | 2015-03-04 | 天津市奥达精密机械制造有限公司 | Angle steel low-angle U-shaped dog-ear device |
| CN204503994U (en) * | 2015-04-09 | 2015-07-29 | 哈尔滨建成集团有限公司 | A kind of particular manufacturing craft angle steel being bent to U-shaped |
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