CN104759537A - Special die for bending angle steel into U shape - Google Patents
Special die for bending angle steel into U shape Download PDFInfo
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- CN104759537A CN104759537A CN201510163425.9A CN201510163425A CN104759537A CN 104759537 A CN104759537 A CN 104759537A CN 201510163425 A CN201510163425 A CN 201510163425A CN 104759537 A CN104759537 A CN 104759537A
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- counterdie
- patrix
- rectangle
- angle steel
- die
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- 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
The invention provides a special die for bending an angle steel into U shape, relates to a die for bending and forming the angle steel, and aims at solving the problem that no special die for bending the angle steel into U shape is provided up to now. The special die for bending the angle steel into U shape is that the lower part of a lower die is arranged into a rectangular mounting hole in a lower die fixing plate; a rectangular boss of the lower die is arranged in a rectangular circular bead hole in the lower die fixing plate; the upper part of an upper die is arranged into the rectangular mounting hole in an upper die fixing plate; the rectangular boss at the upper die is arranged into the rectangular circular bead hole in the upper die fixing plate; two lower end corners of the upper die are round end corners; the length of a rectangular vertical plate of the upper die is equal to the space between two inner side surfaces of the U-shaped angle steel; the lower die fixing plate is arranged on the upper surface of the lower die seat and is detachably tightly connected with the upper surface of a lower die seat; the upper die fixing plate is arranged on the lower surface of an upper die seat and is detachably tightly connected with the lower surface of the upper die seat; the upper die is detachably tightly connected with a returning device and a side baffle. The special is specially used for bending the angle steel into the U shape.
Description
Technical field
The present invention relates to a kind of by the mould of angle steel bending forming, belong to machining Sheet Metal Forming Technology and Design of Dies technical field.
Background technology
Punching press is a kind of process of machining, is to use forcing press to be pressurizeed to metal blank by mould, makes it produce plastic deformation, thus obtains the part of definite shape, size and performance, and it is one of processing method important in machine-building.The part kind utilizing process for stamping to produce is a lot, and its forming method is also varied, and by molding procedure kind, sum up point two large classes, one is separation circuit, and two is molding procedure.Molding procedure refers under the condition not destroying material, makes material generation plastic deformation, thus obtains the product of required form and size.Bending operation is shaping one, and bool comprises various ways, and wherein U-bend song is exactly one wherein.Bending ram is all generally bend sheet material, for section bar (as angle steel), be difficult to bend section bar (angle steel) with process for stamping, the maximum problem of shape bending is exactly buckling deformation, especially angle steel small curvature radius bends, be easy to buckling deformation, therefore urgently need to design a kind of particular manufacturing craft that angle steel can be bent to U-shaped.
Summary of the invention
The object of this invention is to provide a kind of particular manufacturing craft angle steel being bent to U-shaped, till solving up to now, no-trump angle steel bends to the problem of the particular manufacturing craft of U-shaped.
For achieving the above object, the technical scheme taked is as follows in the present invention:
Angle steel is bent to a particular manufacturing craft for U-shaped, it comprises upper die component and lower mold assemblies, and described upper die component is positioned at directly over lower mold assemblies, and upper die component comprises upper bolster, upper mould fixed plate, patrix, back pieces device and side shield; Lower mold assemblies comprises die shoe, counterdie fixed head and counterdie; Described upper bolster and die shoe are rectangular slab, and upper bolster and die shoe are all horizontally disposed with; The lower end of described counterdie and the upper end of patrix are rectangular boss, the upper end of counterdie and the lower end of patrix are rectangle upright plate, the rectangular boss of counterdie and the rectangle upright plate lower end of counterdie are made as one, and the rectangular boss of patrix and the rectangle upright plate upper end of patrix are made as one; Counterdie fixed head upper surface center and upper mould fixed plate lower surface center are processed with rectangle installing hole respectively; Counterdie fixed head lower surface center and upper mould fixed plate upper surface center are processed with rectangle shoulder hole respectively; The rectangle installing hole of counterdie fixed head communicates with the rectangle shoulder hole of counterdie fixed head, and the rectangle installing hole of upper mould fixed plate communicates with the rectangle shoulder hole of upper mould fixed plate; In the rectangle installing hole that the rectangle upright plate bottom of counterdie is arranged on counterdie fixed head and the two interference fits, in the rectangle shoulder hole that the rectangular boss of counterdie is arranged on counterdie fixed head and the two matched in clearance, U-lag is provided with in the middle part of the upper surface of counterdie, be provided with the deep gouge for holding back pieces device in the middle part of the U-lag bottom surface of counterdie, the upper end, side that on counterdie, limit long with it parallels and U-lag one lateral edges are processed with the square groove communicated;
In the rectangle installing hole that the rectangle upright plate top of patrix is arranged on upper mould fixed plate and the two interference fits, in the rectangle shoulder hole that the rectangular boss of patrix is arranged on upper mould fixed plate and the two matched in clearance, two end angles below patrix are nose circle angle, described nose circle angular radius with the fillet radius of bending U-shaped angle steel identical, the length of the rectangle upright plate of patrix with spacing between bending U-shaped angle steel two medial surface equal; Counterdie fixed head 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; Patrix one side and back pieces device are detachably fastenedly connected, and described side shield is arranged on the another side of patrix and is oppositely arranged with back pieces device, and side shield and patrix are detachably fastenedly connected.
The present invention relative to the beneficial effect of prior art is:
Utilize mould of the present invention when angle steel is bent to U-shaped, the right-angle side vertical with axis of bending not unstability can be ensured, ensure the right-angle side flexural deformation position that angle steel is vertical with axis of bending and be not out of shape position keeping parallelism, be in same plane, there is not unstable phenomenon (when angle steel bends, substantially be that curved radius place deforms, other positions are indeformable, if there is unstability in distortion position, would not with indeformable position in same plane) utilize mould of the present invention can to process U-shaped angle steel workpiece in enormous quantities, time saving and energy saving, improve operating efficiency, operating efficiency can improve 50 times, reduce production cost, every part can reduce costs about 150 yuan.
Accompanying drawing explanation
Fig. 1 is a kind of particular manufacturing craft front view angle steel being bent 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, counterdie fixed head 1-2, counterdie 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, patrix 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 particular manufacturing craft angle steel being bent to U-shaped, it comprises upper die component and lower mold assemblies, described upper die component is positioned at directly over lower mold assemblies, and upper die component comprises upper bolster 2-1, upper mould fixed plate 2-3, patrix 2-4, back pieces device 2-5 and side shield 2-6; Lower mold assemblies comprises die shoe 1-1, counterdie fixed head 1-2 and counterdie 1-3; Described upper bolster 2-1 and die shoe 1-1 is rectangular slab, and upper bolster 2-1 and die shoe 1-1 is all horizontally disposed with; The lower end of described counterdie 1-3 and the upper end of patrix 2-4 are rectangular boss, the upper end of counterdie 1-3 and the lower end of patrix 2-4 are rectangle upright plate, the rectangular boss of counterdie 1-3 and the rectangle upright plate lower end of counterdie 1-3 are made as one, and the rectangular boss of patrix 2-4 and the rectangle upright plate upper end of patrix 2-4 are made as one; Counterdie fixed head 1-2 upper surface center and upper mould fixed plate 2-3 lower surface center are processed with rectangle installing hole respectively; Counterdie fixed head 1-2 lower surface center and upper mould fixed plate 2-3 upper surface center are processed with rectangle shoulder hole respectively; The rectangle installing hole of counterdie fixed head 1-2 communicates with the rectangle shoulder hole of counterdie fixed head 1-2, and the rectangle installing hole of upper mould fixed plate 2-3 communicates with the rectangle shoulder hole of upper mould fixed plate 2-3; In the rectangle installing hole that the rectangle upright plate bottom of counterdie 1-3 is arranged on counterdie fixed head 1-2 and the two interference fits, in the rectangle shoulder hole that the rectangular boss of counterdie 1-3 is arranged on counterdie fixed head 1-2 and the two matched in clearance, U-lag 1-5 is provided with in the middle part of the upper surface of counterdie 1-3, be provided with the deep gouge 1-6 for holding back pieces device 2-5 in the middle part of the U-lag 1-5 bottom surface of counterdie 1-3, the upper end, side that on counterdie 1-3, limit long with it parallels and U-lag 1-5 mono-lateral edges are processed with the square groove 1-7 communicated;
In the rectangle installing hole that the rectangle upright plate top of patrix 2-4 is arranged on upper mould fixed plate 2-3 and the two interference fits, in the rectangle shoulder hole that the rectangular boss of patrix 2-4 is arranged on upper mould fixed plate 2-3 and the two matched in clearance, two end angles below patrix 2-4 are respectively nose circle angle, described nose circle angular radius with the fillet radius of bending U-shaped angle steel 3 identical, the length of the rectangle upright plate of patrix 2-4 with spacing between bending U-shaped angle steel 3 liang of medial surfaces equal; Counterdie fixed head 1-2 is arranged on die shoe 1-1 upper surface and the two is detachably fastenedly connected by bolt, and upper mould fixed plate 2-3 is arranged on upper bolster 2-1 lower surface and the two is detachably fastenedly connected by bolt; Patrix 2-4 mono-side and back pieces device 2-5 are detachably fastenedly connected by bolt, and described side shield 2-6 is arranged on the another side of patrix 2-4 and is oppositely arranged with back pieces device 2-5, and side shield 2-6 and patrix 2-4 is detachably fastenedly connected by bolt.
The object arranging side shield 2-6 is, can ensure the right-angle side not unstability that angle steel is vertical with axis of bending.
The object arranging back pieces device 2-5 is, pulls out smoothly from bottom to top after can ensureing angle steel bending forming from counterdie 1-3.
Preferably, as shown in Fig. 6, Fig. 8, there is between the inner circumferential side in the rectangle shoulder hole of the rectangular boss circumferential lateral surface distance counterdie fixed head 1-2 of described counterdie 1-3 the gap of 1mm; There is between the inner circumferential side in the rectangle shoulder hole of the rectangular boss circumferential lateral surface distance upper mould fixed plate 2-3 of described patrix 2-4 the gap of 1mm.Object ensures that the rectangular boss of counterdie 1-3 can be assembled in the rectangle shoulder hole of counterdie fixed head 1-2 smoothly.
Preferably, as shown in Fig. 6, Fig. 8, the degree of depth in the rectangle shoulder hole of described counterdie fixed head 1-2 is consistent with the thickness of the rectangular boss of counterdie 1-3; The degree of depth in the rectangle shoulder hole of described upper mould fixed plate 2-3 is consistent with the thickness of the rectangular boss of patrix 2-4.Object ensures that counterdie 1-3 and patrix 2-4 can not move in upper and lower vertical direction.
Detailed description of the invention two: as shown in Fig. 1 ~ Fig. 9, a kind of particular manufacturing craft angle steel being bent to U-shaped described in detailed description of the invention one, described lower mold assemblies hangs mould post 1-4 under also comprising four, described upper die component also comprises four mould post 2-2 that hang oneself, mould post 1-4 is hung under two opposite long sides of described die shoe 1-1 are respectively provided with two, hang mould post 1-4 under described four and be threaded with two opposite long sides of die shoe 1-1 by self screw thread that (namely two opposite long sides of die shoe 1-1 are respectively provided with two screwed holes one, hang mould post 1-4 under four to be threaded by four screwed holes one of self screw thread with two opposite long sides of die shoe 1-1), two opposite long sides of described upper bolster 2-1 are respectively provided with two mould post 2-2 that hang oneself, described four the mould post 2-2 that hang oneself are threaded with two opposite long sides of upper bolster 2-1 by self screw thread, and (namely two opposite long sides of upper bolster 2-1 are respectively provided with two screwed holes two, four mould post 2-2 that hang oneself are threaded with four screwed holes two on two opposite long sides of upper bolster 2-1 by self screw thread).Arrange down and hang mould post 1-4 and the object of mould post 2-2 of hanging oneself is, be convenient to 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, a kind of particular manufacturing craft angle steel being bent to U-shaped described in detailed description of the invention one, described back pieces device 2-5 is L shaped plate, and the side described in patrix 2-4 and the vertical plate medial surface of L shaped plate are detachably fastenedly connected by bolt.Back pieces device 2-5 is L shaped plate, guarantee be connected with patrix 2-4 fastening while, be also convenient to bending U-shaped angle steel 3 to pull out from counterdie 1-3.
As shown in Fig. 1 ~ Figure 12, a kind of particular manufacturing craft angle steel being bent to U-shaped of the present invention is used for hydraulic press and uses, die shoe 1-1 and the hydraulic press lower table face of lower mold assemblies are connected and fixed, upper bolster 2-1 and the hydraulic press top shoe of upper die component are connected and fixed, upper die component and lower mold assemblies can be thrown off mutually, working procedure is as follows: start hydraulic press, make hydraulic press top shoe up, and makes patrix 2-4 lower plane about plane 20mm on counterdie 1-3.Hydraulic press is slack, angle steel to be bent to be put into patrix 2-4 lower plane and counterdie 1-3 between plane from described mould one end, make that described angle steel right-angle side is parallel to be placed on counterdie 1-3 in plane, another right-angle side of angle steel is close on the square groove 1-7 side of counterdie 1-3 side, start hydraulic press descending, until upper and lower mould assembly is completely closed angle steel is pressed into U-shaped till, stop hydraulic press top shoe descending, and make hydraulic press top shoe upwards return, till U-shaped angle steel 3 is pulled out counterdie 1-3 by back pieces device 2-5, 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, drive upper die component moves up and down, the U-lag 1-5 shape of counterdie 1-3 is identical with U-shaped angle steel 3 outer shape, patrix 2-4 working position (i.e. the lower end of patrix 2-4) is made and shape same shape in U-shaped angle steel 3, and hydraulic press top shoe drives upper die component to pump.When upper die component moves downward certain position, make patrix 2-4 lower plane on the counterdie 1-3 during about plane 20mm, angle steel right-angle side to be placed on counterdie 1-3 in plane, another right-angle side of angle steel is close on the square groove 1-7 side of counterdie 1-3 side, starting hydraulic press continues descending, until upper and lower membrane module is completely closed angle steel is pressed into U-shaped till, be attached to the angle steel right-angle side of counterdie 1-3 side, under the acting in conjunction of the square groove 1-7 side of counterdie 1-3 and the side shield 2-6 of upper die component, buckling deformation can not be there is.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 counterdie 1-3 by back pieces device 2-5, complete a workpiece and make circulation.
It is 50 × 50 × 5mm that mould of the present invention is specially adapted to angle steel specification, the fillet radius of bending U-shaped angle steel 3 be U-shaped angle steel workpiece (the bending fillet radius little like this of 50mm, add this warp architecture, do not have particular manufacturing craft to realize, more can not process in enormous quantities).
Claims (5)
1. angle steel is bent to the particular manufacturing craft of U-shaped by one kind, it is characterized in that: it comprises upper die component and lower mold assemblies, described upper die component is positioned at directly over lower mold assemblies, and upper die component comprises upper bolster (2-1), upper mould fixed plate (2-3), patrix (2-4), back pieces device (2-5) and side shield (2-6), lower mold assemblies comprises die shoe (1-1), counterdie fixed head (1-2) and counterdie (1-3), described upper bolster (2-1) and die shoe (1-1) are rectangular slab, and upper bolster (2-1) and die shoe (1-1) are all horizontally disposed with, the lower end of described counterdie (1-3) and the upper end of patrix (2-4) are rectangular boss, the upper end of counterdie (1-3) and the lower end of patrix (2-4) are rectangle upright plate, the rectangular boss of counterdie (1-3) and the rectangle upright plate lower end of counterdie (1-3) are made as one, and the rectangular boss of patrix (2-4) and the rectangle upright plate upper end of patrix (2-4) are made as one, counterdie fixed head (1-2) upper surface center and upper mould fixed plate (2-3) lower surface center are processed with rectangle installing hole respectively, counterdie fixed head (1-2) lower surface center and upper mould fixed plate (2-3) upper surface center are processed with rectangle shoulder hole respectively, the rectangle installing hole of counterdie fixed head (1-2) communicates with the rectangle shoulder hole of counterdie fixed head (1-2), and the rectangle installing hole of upper mould fixed plate (2-3) communicates with the rectangle shoulder hole of upper mould fixed plate (2-3), in the rectangle installing hole that the rectangle upright plate bottom of counterdie (1-3) is arranged on counterdie fixed head (1-2) and the two interference fits, in the rectangle shoulder hole that the rectangular boss of counterdie (1-3) is arranged on counterdie fixed head (1-2) and the two matched in clearance, U-lag (1-5) is provided with in the middle part of the upper surface of counterdie (1-3), the deep gouge (1-6) for holding back pieces device (2-5) is provided with in the middle part of U-lag (1-5) bottom surface of counterdie (1-3), the upper end, side that counterdie (1-3) above parallels with its long limit and U-lag (1-5) lateral edges are processed with the square groove (1-7) communicated,
In the rectangle installing hole that the rectangle upright plate top of patrix (2-4) is arranged on upper mould fixed plate (2-3) and the two interference fits, in the rectangle shoulder hole that the rectangular boss of patrix (2-4) is arranged on upper mould fixed plate (2-3) and the two matched in clearance, two end angles of patrix (2-4) below are respectively nose circle angle, described nose circle angular radius with the fillet radius of bending U-shaped angle steel (3) identical, the length of the rectangle upright plate of patrix (2-4) with spacing between bending U-shaped angle steel (3) two medial surface equal; Counterdie fixed head (1-2) is arranged on die shoe (1-1) upper surface and the two is detachably fastenedly connected, and upper mould fixed plate (2-3) is arranged on upper bolster (2-1) lower surface and the two is detachably fastenedly connected; Patrix (2-4) one side and back pieces device (2-5) are detachably fastenedly connected, described side shield (2-6) is arranged on the another side of patrix (2-4) and is oppositely arranged with back pieces device (2-5), and side shield (2-6) and patrix (2-4) are detachably fastenedly connected.
2. a kind of particular manufacturing craft angle steel being bent to U-shaped according to claim 1, is characterized in that: the gap between the inner circumferential side in the rectangle shoulder hole of rectangular boss circumferential lateral surface distance counterdie fixed head (1-2) of described counterdie (1-3) with 1mm; There is between the inner circumferential side in the rectangle shoulder hole of rectangular boss circumferential lateral surface distance upper mould fixed plate (2-3) of described patrix (2-4) gap of 1mm.
3. a kind of particular manufacturing craft angle steel being bent to U-shaped according to claim 1 and 2, is characterized in that: the degree of depth in the rectangle shoulder hole of described counterdie fixed head (1-2) is consistent with the thickness of the rectangular boss of counterdie (1-3); The degree of depth in the rectangle shoulder hole of described upper mould fixed plate (2-3) is consistent with the thickness of the rectangular boss of patrix (2-4).
4. a kind of particular manufacturing craft angle steel being bent to U-shaped according to claim 1, is characterized in that: described lower mold assemblies hangs mould post (1-4) under also comprising four, and described upper die component also comprises four mould posts (2-2) of hanging oneself; Mould post (1-4) is hung under two opposite long sides of described die shoe (1-1) are respectively provided with two, hang mould post (1-4) under described four to be threaded with two opposite long sides of die shoe (1-1) by self screw thread, two opposite long sides of described upper bolster (2-1) are respectively provided with two mould posts (2-2) of hanging oneself, and described four mould posts (2-2) of hanging oneself are threaded with two opposite long sides of upper bolster (2-1) by self screw thread.
5. a kind of particular manufacturing craft angle steel being bent to U-shaped according to claim 1, it is characterized in that: described back pieces device (2-5) is L shaped plate, the side described in patrix (2-4) and the vertical plate medial surface of L shaped plate are 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 |
|---|---|
| CN104759537A true CN104759537A (en) | 2015-07-08 |
| CN104759537B CN104759537B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510163425.9A Active 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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| CN (1) | CN104759537B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107457289A (en) * | 2017-08-02 | 2017-12-12 | 江门市南洋船舶工程有限公司 | Square steel peculiar to vessel is marked time die arrangement |
| CN107639164A (en) * | 2017-10-31 | 2018-01-30 | 徐州徐工施维英机械有限公司 | Workpiece bows mould and workpiece bows 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 |
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| US3705512A (en) * | 1970-01-28 | 1972-12-12 | Maschf Augsburg Nuernberg Ag | Bending tool for bending deformable workpieces, such as metal sheets and the like |
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| CN102873186A (en) * | 2012-08-21 | 2013-01-16 | 无锡美业机械制造有限公司 | Rolling shaft die used for stamping U-shaped filter casing with strengthening ribs |
| 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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| US3705512A (en) * | 1970-01-28 | 1972-12-12 | Maschf Augsburg Nuernberg Ag | Bending tool for bending deformable workpieces, such as metal sheets and the like |
| DE3629270A1 (en) * | 1985-09-10 | 1987-03-19 | Volkswagen Ag | Apparatus for the wear-free forming of dimensionally accurate sheet-metal components with an at least approximately L-shaped or U-shaped cross-section from sheet-metal blanks or sheet-metal parts |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107457289A (en) * | 2017-08-02 | 2017-12-12 | 江门市南洋船舶工程有限公司 | Square steel peculiar to vessel is marked time die arrangement |
| 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 |
| CN107639164A (en) * | 2017-10-31 | 2018-01-30 | 徐州徐工施维英机械有限公司 | Workpiece bows mould and workpiece bows processing assembly |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN104759537B (en) | 2017-01-04 |
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