CN106964691B - A kind of band grid ribs Cylinder shape constructional element flexible compound manufacturing process - Google Patents
A kind of band grid ribs Cylinder shape constructional element flexible compound manufacturing process Download PDFInfo
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- CN106964691B CN106964691B CN201710244885.3A CN201710244885A CN106964691B CN 106964691 B CN106964691 B CN 106964691B CN 201710244885 A CN201710244885 A CN 201710244885A CN 106964691 B CN106964691 B CN 106964691B
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- cylinder shape
- grid ribs
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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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/005—Processes combined with methods covered by groups B21D1/00 - B21D31/00 characterized by the material of the blank or the workpiece
-
- 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
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a kind of band grid ribs Cylinder shape constructional element flexible compound manufacturing process, include the following steps：According to target member size selection plate blank；Plate blank is seated on the workbench of forcing press along stock guide；Using continuous and local extrusion method extrude out in piece blank integral grid muscle structure obtain plane net panel；Then the net surfaces panel of three rollers volume bending method forming belt grid ribs structure is utilized；Finally utilize the Cylinder shape constructional element of welding method forming belt grid ribs.The present invention is organically combined by plastic working and welding method, it can be achieved that with the accurate, efficient of grid ribs Cylinder shape constructional element, flexible forming, is improved product quality and manufacture efficiency, is reduced manufacture cost, expands manufacture scope.
Description
Technical field
The present invention relates to a kind of band grid ribs Cylinder shape constructional element flexible compound manufacturing process.
Background technology
The high-performance light component of new space flight and weaponry key with grid ribs Cylinder shape constructional element, such component with
Based on aluminium alloy light material, the big wall thickness of diameter is thin, surface carries crisscross grid ribs structure, belong to the difficult deformation of material,
The difficult shaping special component of structure.The conventionally manufactured mode of such component is typically to first pass through the Plastic Forming such as spinning mode or plate
Material bends welding forming mode to obtain seamless or seamed cylindrical body, then carries out rib welding to its surface again and cutting adds
Work obtains grid ribs structure.Grid ribs processing method based on welding and machining, not only efficiency is very low, Er Qie great
The weld seam of amount causes grid ribs intensity and integrated member performance obvious limitation and potential hazard.For band muscle Cylinder shape constructional element essence
Close Problems in forming, has been carried out relation technological researching and has formed open report, for example, being added using plasticity such as spinning, extruding at present
Work method direct forming surface rib, so as to substitute rib welding processing, effectively increases processing efficiency and properties of product.But
It is that it was found from the situation analysis reported, also there are many limitations at present for these new methods.First, they are served only for shaping
Simple inner surface transverse bar or vertical muscle structure, are also not directed to the grid ribs structure of complexity, and complex technical process, technical requirements
Height, easily produces various forming defectses；Secondly, their forming dimension scope is limited be subject to equipment processing ability, at present only
Suitable for 1 meter or so of middle-size and small-size cylindrical member of diameter；Furthermore they are needed by dedicated equipment and mold, and due to special
The limitation of the equipment range of work, the product of different size need different equipment and molds, and input is high.Since these technologies are limited to
Property, the above method seems helpless for large thin-wall band grid ribs Cylinder shape constructional element, therefore there is an urgent need to research and develop large thin-wall
Band grid ribs Cylinder shape constructional element high-performance, high efficiency, low cost shaping new technology, to meet advanced space flight and Weapon Development need
Ask.
The content of the invention
Based on above the deficiencies in the prior art, technical problem solved by the invention is to provide a kind of band grid ribs tubular
Component Flexible combined shaping method, it is compound, it can be achieved that different sizes are advised by using extruding, rolling up the conventional forming mode of curved and welding
The inside and outside grid ribs tubular structure of the bands of lattice is accurate, efficiently, low cost, flexible forming so that improve product quality and processing efficiency,
Reduce manufacture cost.
In order to solve the above-mentioned technical problem, the technical solution used in the present invention is：A kind of band grid ribs Cylinder shape constructional element is soft
Property combined shaping method, includes the following steps：
Step 1: according to the plate blank of target member size selection suitable dimension specification, and design and target member
The extrusion punch-pin that grid ribs structure matches, the guide side plate that design matches with plate blank and extrusion Male Die Size；
Step 2: extrusion punch-pin and guide side plate be installed to forcing press relevant position, then by plate blank along stock guide
It is seated on the workbench of forcing press；
Step 3: forcing press driving extrusion punch-pin moves downward the plate blank extrusion striking out that extrusion is contacted with its working face
Portion's grid ribs structure；Extrusion punch-pin backhaul, material-pulling device promote plate blank to be sent into forward along guide side plate；It is iteratively repeated above-mentioned
Step, until integral grid muscle structure of extruding out on monoblock plate blank, obtains plane net panel；
Step 4: the plane net panel that step 3 is obtained is put to three roller coiling machines, then rationally control upper and lower roll is transported
It is dynamic, pre-bending shaping is first carried out respectively to the both ends of plane net panel, edge rolling then is carried out to it again, wherein, it is specially：First to
Upper mobile lower-left roller carries out pre-bending to plane net panel left end, and then upper roller rotates clockwise, and lower-left roller moves down, and allows plane
Waffle slab is moved to the left suitable distance, then moves up bottom right roller and carry out pre-bending to plane net panel right end, finally adjusts lower roll
To suitable position, upper roller rotation carries out edge rolling to the plane net panel after pre-bending, obtains the net surfaces for being used for shaping Cylinder shape constructional element
Panel；
Step 5: by the net surfaces panel that step 4 obtains along longitudinal soldering, it is final to obtain completely band grid ribs tubular
Component, that is, obtain target member.
As the preferred embodiment of above-mentioned technical proposal, band grid ribs Cylinder shape constructional element provided in an embodiment of the present invention is flexible
Combined shaping method further comprises the part or all of of following technical characteristic：
As the improvement of above-mentioned technical proposal, in one embodiment of the invention, after the step 1, according to flat blank
Dimensional performance and equipment tonnage are expected to determine the need for heating blank in advance, and sotck thinkness is small and cold plasticity is good and sets
Standby tonnage is big, can directly extrude, otherwise extrudes after can heating.
As the improvement of above-mentioned technical proposal, according to target member size selection suitable dimension specification in the step 1
Plate blank is：Plate blank width is equal to target member height, and plate blank length is equal to target member circumferential length, tablet
Sotck thinkness is equal to target member volume divided by circumferential length.
As the improvement of above-mentioned technical proposal, extrusion punch-pin is equipped with some and grid ribs structure of target member by bottom plate
The small lugs composition to match, the transverse width B for punch-pin of extruding are equal to the width of plate blank, and longitudinal length L is by equipment tonnage
Determined with space, need to meet compressive force energy condition L≤F/B σs, wherein F is equipment tonnage, σsIt is the yield strength of material.
As the improvement of above-mentioned technical proposal, guide side plate is rectangular section box structure, its height is equal to plate blank
Thickness, its width is (1.2~1.5) L, and wherein L is the width of extrusion punch-pin, and guide side plate is installed on flat blank during work
The material left and right sides.
It is in one embodiment of the invention, right before welding in the step 5 as the improvement of above-mentioned technical proposal
Processing is fixed in cylindrical body.
Compared with prior art, technical scheme has the advantages that：Different from existing band muscle tubular
Component is shaped cylindrical body and reshapes bead structures or both while the mode of shaping, and the present invention uses and is shaped grid ribs
Structure reshapes the mode of cylindrical body, it is possible to prevente effectively from existing forming mode there are the problem of.Extruded by continuous and local
Method obtains plane net panel, not only laborsaving, efficient, but also grid ribs structure precision is high, and waffle slab easy to implement is
Rowization and standardization manufacture.Bending method is rolled up by three rollers and obtains net surfaces panel, and forming mode is simple, can arbitrarily obtain interior muscle
Or outer web frame, and can be shaped according to the standard flat waffle slab of different Cylinder shape constructional element diameter selection different sizes,
Shaping scope is expanded, realizes flexible manufacturing.Therefore, the present invention is with forming accuracy is high, efficient, cost is low, flexibility
Deng overall merit.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow the above and other objects, features and advantages of the present invention can
Become apparent, below in conjunction with preferred embodiment, describe in detail as follows.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will simply it be situated between to the attached drawing of embodiment below
Continue.
Fig. 1 is the plane net panel continuous and local extrusion moulding process schematic representation of the present invention, and wherein Fig. 1 (a) is for the first time
Local extrusion schematic diagram, Fig. 1 (b) are second of local extrusion schematic diagrames, and Fig. 1 (c) is the local extrusion schematic diagram of last time；
Fig. 2 is the plane net panel continuous and local extrusion punch structure schematic diagram of the present invention；
Fig. 3 is the Section A-A schematic diagram of Fig. 1 (a) of the present invention；
Fig. 4 is the extrusion moulding plane net panel schematic diagram of the present invention；
Interior three roller of muscle structure net surfaces panel that Fig. 5 is the present invention rolls to shape process schematic representation, and wherein Fig. 5 (a) is plate
Expect initial placement state schematic diagram, Fig. 5 (b) is plate left end pre-bending schematic diagram, and Fig. 5 (c) is plate right end pre-bending schematic diagram, figure
5 (d) is Metal Sheet in Curling schematic diagram；
Fig. 6 is grid ribs Cylinder shape constructional element schematic diagram in the welding forming band of the present invention；
Outer three roller of muscle structure net surfaces panel that Fig. 7 is the present invention rolls to shape process schematic representation, and wherein Fig. 7 (a) is plate
Expect initial placement state schematic diagram, Fig. 7 (b) is Metal Sheet in Curling schematic diagram；
Fig. 8 is the outer grid ribs Cylinder shape constructional element schematic diagram of welding forming band of the present invention；
1- plate blanks in figure；2- extrusion punch-pin；3- guide side plates；4- work tops；5- plane net panels；6- upper rollers；
7- lower-lefts roller；8- bottom rights roller.
Embodiment
The following detailed description of the present invention embodiment, its as part of this specification, by embodiment come
Illustrate the principle of the present invention, other aspects of the present invention, feature and its advantage will become apparent by the detailed description.
As shown in figs. 1-7, it is structure of the preferred embodiment of the present invention with grid ribs Cylinder shape constructional element flexible compound manufacturing process
Schematic diagram, present invention band grid ribs Cylinder shape constructional element flexible compound manufacturing process, includes the following steps：
Step 1: according to the plate blank 1 of target member size selection suitable dimension specification, 1 width of plate blank is equal to
Target member height, 1 length of plate blank are equal to target member circumferential length, and 1 thickness of plate blank is equal to target member volume
Divided by circumferential length.
The extrusion punch-pin 2 that design at the same time and the grid ribs structure of target member match, design and plate blank 1 and extrusion
The guide side plate 3 that 2 size of punch-pin matches, wherein extrusion 2 structure of punch-pin as shown in Fig. 2, mainly by bottom plate be equipped with it is some with
The small lugs composition that the grid ribs structure of target member matches, extrusion 2 transverse width B of punch-pin are equal to 1 width of plate blank, indulge
Determined to length L by equipment tonnage and space, need to meet compressive force energy condition L≤F/B σs, wherein F is equipment tonnage, σsIt is
The yield strength of material, equipment tonnage is big and space it is enough in the case of longitudinal length L can be designed to it is larger, to improve life
Produce efficiency.Guide side plate 3 is rectangular section box structure, its height is equal to 1 thickness of plate blank, its width is convex slightly larger than extruding
2 width L of mould, may be designed as (1.2~1.5) L, and when work is installed in the left and right sides of plate blank 1, is sent in plate blank 1
Into when be oriented to and when plate blank 1 is extruded provide lateral pressure assist formation.
Step 2: extrusion punch-pin 2 and guide side plate 3 be installed to forcing press relevant position, then by plate blank 1 along guide
Side plate 3 is seated on the workbench 4 of forcing press., can be according to 1 dimensional performance of plate blank and equipment ton before placing plate blank 1
Position determines the need for heating plate blank 1 in advance, if 1 thickness of plate blank is small, cold plasticity is good and equipment tonnage
Greatly, can directly extrude, it is on the contrary then need to extrude again after being heated to the initial forging temperature of material.
Step 3: continuous and local is extruded：Forcing press driving extrusion punch-pin 2 moves downward extrusion and is contacted with its working face
Plate blank 1 extrude out local grid ribs structure, such as Fig. 1 (a)；Extrusion 2 backhaul of punch-pin, material-pulling device promote plate blank 1
It is sent into forward along guide side plate 3, as shown in Fig. 1 (b)；Above-mentioned steps are iteratively repeated, until extruding out on monoblock plate blank 1
Integral grid muscle structure, obtains plane net panel, as shown in Fig. 1 (c).
By varying the size of plate blank 1, the shaping of products of different specifications can adapt to.
Step 4: the plane net panel (as shown in Figure 4) that step 3 is obtained is transferred on three roller bending machines, it is flat putting
It should be noted grid direction during veil panel 5., should be by the net of plane net panel when putting for inner surface band grid ribs Cylinder shape constructional element
Lattice are towards 6 side of upper roller, as shown in Fig. 5 (a)；, should be by plane net panel when putting for outer surface band grid ribs Cylinder shape constructional element
Grid towards lower roll 7,8 sides, as shown in Fig. 7 (a).Fig. 5 is shown to carry out pair on arc down-adjusted three-roll plate bending machine
Plane net panel carries out rolling to shape, wherein, upper roller 6 is active rotating roller, but position is irremovable, and lower roll 7,8 is passive rotation
Transfer roller, can make arc curve movement around fixing axle.Need to carry out pre-bending to its both ends before to 5 edge rolling of plane net panel, such as
Fig. 5 (b) and 5 (c) are shown, move up lower-left roller 7 first and carry out pre-bending to 5 left end of plane net panel, as shown in Fig. 5 (b)；So
Upper roller 6 rotates clockwise afterwards, and lower-left roller 7 moves down, and allows plane net panel 5 to be moved to the left suitable distance, then move up the right side
Lower roll 8 carries out pre-bending to 5 right end of plane net panel, as shown in Fig. 5 (c)；Lower roll 7,8 is finally adjusted to suitable position, upper roller rotation
Turn to carry out edge rolling to the plane net panel 5 after pre-bending, as shown in Fig. 5 (d) and 7 (b), obtain and be used to shape the seamed of Cylinder shape constructional element
Net surfaces panel.
Step 5: the seamed net surfaces panel gone out by step 4 process forming is transferred to welding post, to prevent from welding
Deformation is connect, processing cylindrical body can be fixed before welding.Cylindrical body siding part longitudinal breach air line distance length, can
It is welded along longitudinal direction using agitating friction weldering, and grid ribs partial-length is short, it is compact-sized, means of fusion arc welding can be used to it
Welded, it is final to obtain completely band grid ribs Cylinder shape constructional element, that is, target member is obtained, as shown in Figure 6 and Figure 8.
The above is the preferred embodiment of the present invention, cannot limit the right model of the present invention with this certainly
Enclose, it is noted that for those skilled in the art, without departing from the principle of the present invention, may be used also
To make some improvement and variation, these are improved and variation is also considered as protection scope of the present invention.
Claims (5)
1. a kind of band grid ribs Cylinder shape constructional element flexible compound manufacturing process, it is characterised in that include the following steps：
Step 1: according to target member size selection plate blank, and design what is matched with the grid ribs structure of target member
Extrusion punch-pin, the guide side plate that design matches with plate blank and extrusion Male Die Size；
Step 2: extrusion punch-pin and guide side plate are installed to forcing press relevant position, then plate blank is pacified along guide side plate
Put to the workbench of forcing press；
Extrude out local area network Step 3: forcing press driving extrusion punch-pin moves downward the plate blank that is contacted with its working face of extrusion
Lattice muscle structure；Extrusion punch-pin backhaul, material-pulling device promote plate blank to be sent into forward along guide side plate；It is iteratively repeated above-mentioned step
Suddenly, until integral grid muscle structure of extruding out on monoblock plate blank, obtains plane net panel；
Step 4: the plane net panel that step 3 is obtained is put to three roller coiling machines, upper and lower roll movement is then controlled, it is first right
The both ends of plane net panel carry out pre-bending shaping respectively, then carry out edge rolling to it again, wherein, it is specially：Move up first
Lower-left roller carries out pre-bending to plane net panel left end, and then upper roller rotates clockwise, and lower-left roller moves down, and allows plane net panel
Suitable distance is moved to the left, then moves up bottom right roller and pre-bending is carried out to plane net panel right end, finally adjusts lower roll to suitable
Position, upper roller rotation carry out edge rolling to the plane net panel after pre-bending, obtain the net surfaces panel for being used for shaping Cylinder shape constructional element；
Step 5: by the net surfaces panel that step 4 obtains along longitudinal soldering, it is final to obtain completely band grid ribs Cylinder shape constructional element,
Obtain target member.
2. band grid ribs Cylinder shape constructional element flexible compound manufacturing process as claimed in claim 1, it is characterised in that：The step 1
Afterwards, determine the need for heating blank in advance according to billet size performance and equipment tonnage, sotck thinkness is small and cold
Plasticity is good and equipment tonnage is big, can directly extrude, otherwise extrudes after can heating.
3. band grid ribs Cylinder shape constructional element flexible compound manufacturing process as claimed in claim 1, it is characterised in that：The step 1
It is middle to be according to target member size selection plate blank：Plate blank width is equal to target member height, plate blank length etc.
In target member circumferential length.
4. band grid ribs Cylinder shape constructional element flexible compound manufacturing process as claimed in claim 1, it is characterised in that：The step 1
In：Extrusion punch-pin is made of bottom plate equipped with the small lugs that some grid ribs structures with target member match, punch-pin of extruding
Transverse width B be equal to plate blank width, longitudinal length L is determined by equipment tonnage and space, need to meet compressive force energy
Condition L≤FB σs, wherein F is equipment tonnage, σsIt is the yield strength of material.
5. band grid ribs Cylinder shape constructional element flexible compound manufacturing process as claimed in claim 1, it is characterised in that：The step 5
In, cylindrical body is fixed before welding processing.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580622B (en) * | 2018-03-19 | 2020-01-14 | 武汉理工大学 | Design method of in-mold radial extrusion forming process of I-shaped longitudinal rib ring piece |
| CN108637073B (en) * | 2018-05-11 | 2020-09-15 | 武汉理工大学 | Flow forming device and method for thin-wall cylindrical component with internal grid ribs |
| CN109500156B (en) * | 2018-12-28 | 2023-06-20 | 天津航天长征火箭制造有限公司 | Bending forming device and method for inner grid wall plate with high rib thickness ratio |
| CN110508653B (en) * | 2019-07-19 | 2020-09-29 | 重庆大学 | Roll forming method of rib plate |
| CN112338051B (en) * | 2020-09-11 | 2022-06-24 | 山东科技大学 | Ultrasonic-assisted incremental forming device and process for aluminum alloy ribbed thin-wall component |
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| JP2009136892A (en) * | 2007-12-05 | 2009-06-25 | Kobe Steel Ltd | Transfer method for material to be transferred |
| CN102974671A (en) * | 2012-11-28 | 2013-03-20 | 上海飞机制造有限公司 | Rolling forming method of metal plate component |
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