CN109013907A - A kind of backward extrusion technology and mold that slab is body formed - Google Patents
A kind of backward extrusion technology and mold that slab is body formed Download PDFInfo
- Publication number
- CN109013907A CN109013907A CN201811076672.5A CN201811076672A CN109013907A CN 109013907 A CN109013907 A CN 109013907A CN 201811076672 A CN201811076672 A CN 201811076672A CN 109013907 A CN109013907 A CN 109013907A
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- mold core
- forming blocks
- clamp plate
- product
- molding
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Classifications
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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
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of backward extrusion technologies and mold that slab is body formed, mold includes part of the upper die and part of the lower die, the mold is in structure, using upside-down mounting molding structure, it is positioned using molding outer profile, traditional dies compared with the default position of formal dress are compared, the mould structure of upside-down mounting outer profile positioning, and production operation step is simpler.The technique controls that mounting hole plane in seam allowance class clutch case stamping procedure is small and seam allowance height by anti-extrusion, changes the type of flow of metal material.
Description
Technical field
The present invention relates to thick plate punched element reverse molding technical field, the body formed backward extrusion technologies of specifically a kind of slab
And mold.
Background technique
Clutch case mounting surface size and seam allowance height problem are always the difficulty of clutch industry seam allowance class lid stamping procedure
Point parameter.On common process and mould structure, improvement difficulty is larger, and production stability is not high.Product structure as shown in figure 5,
External arc R5 is less than product thickness, and conventional stamping processes are difficult to meet technical requirements.But during anti-extrusion, at material
Under three-dimensional compressive stress state, the flowing of metal material can be effectively controlled.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, and provide a kind of backward extrusion technology that slab is body formed and
Mold, the technique can control that the mounting hole plane in seam allowance class clutch case stamping procedure is small and seam allowance height, which exists
In structure, using upside-down mounting molding structure, positioned using molding outer profile, the traditional dies compared with the default position of formal dress are compared, outside upside-down mounting
The mould structure of locations of contours, production operation step are more simple and fast.
Realizing the technical solution of the object of the invention is:
A kind of molding indirect-extrusion mould of heavy-gauge sheeting, including part of the upper die and part of the lower die；
The part of the upper die, including upper die holder, upper padding plate, upper clamp plate, upper mold core backing plate, upper mold core, forming blocks and on first
Forming blocks on two, the lower end surface of upper die holder set gradually upper padding plate, upper clamp plate, upper mold core backing plate and upper mold core from top to bottom, on
Forming blocks in forming blocks and second are respectively set on first in the both ends of clamping plate, upper mold core backing plate and upper mold core；
The part of the lower die uses frame structure, including lower die holder, lower bolster, lower clamp plate, lower mold core, the first lower forming blocks second
Lower forming blocks and framed, lower bolster are located at the upper surface of lower die holder, and lower mold core, lower bolster upper surface is arranged in the upper surface of lower bolster
It is additionally provided with lower clamp plate, lower clamp plate is respectively provided at the two sides of lower mold core, and every piece of lower clamp plate upper surface is additionally provided with framed, framed and lower die
It is additionally provided with the first lower forming blocks and the second lower forming blocks between core, is additionally provided with forming blocks under third in the first lower forming blocks；It is described
Lower mold core bottom mandril is set, mandril passes through lower bolster and lower die holder and connect with lathe.
Limited post, guide sleeve seat and guide pillar seat are further respectively had between the upper die holder and lower die holder.
Forming blocks are movable part on described first, are built-in with spring, and spring is connect by contour set with upper padding plate, are realized
The binder and pusher function of part of the upper die.
The upper die holder sequentially passes through upper padding plate, upper clamp plate, upper mold core backing plate by screw and connect with upper mold core, upper mold
Seat also passes through upper padding plate by screw and is fixedly connected with forming blocks on second.
Upper clamp plate, upper mold core backing plate, upper mold core and the lower mold core is interior to be equipped with pin.
Forming blocks and framed pass through screw and lower clamp plate company under described first lower forming blocks, the second lower forming blocks, third
It connects, lower clamp plate passes through lower bolster by screw and connect with lower die holder.
It is equipped with central alignment hole in the upper clamp plate, upper mold core backing plate and upper mold core, also is provided in lower mold core and upper mold
The corresponding central alignment hole in part.
A kind of backward extrusion technology that slab is body formed, specifically comprises the following steps:
1) product is preforming, the general outline of product is obtained, and draw high the height of product product, i.e., reserved volume compensation amount；
2) it is positioned by the outer profile of product, preforming obtained product blank product is tipped upside down on the mold of reverse-forming；
3) with lathe slide block down, the upper mold core of part of the upper die is first contacted with blank product mold, and is pressed on part of the lower die；
4) upper mold core of part of the upper die continues traveling downwardly, part of the upper die first on forming blocks contact product type in forming blocks and second
Face, in forming process, when molding is near completion, the section of the step surface contact product product of forming blocks root on second, with
The completion of forming process, in preforming operation reserve volume compensation amount, pass through the reversed of upper die forming block root step
It squeezes, material reverse backflow is forced, to realize the partial thickening overstriking of material.
In step 1), the height is 2.0-3.0mm.
The utility model has the advantages that backward extrusion technology and mold that a kind of slab provided by the invention is body formed, the mold in structure,
It using upside-down mounting molding structure, is positioned using molding outer profile, the traditional dies compared with the default position of formal dress are compared, the positioning of upside-down mounting outer profile
Mould structure, production operation step is more simple and fast.The technique controls the punching of seam allowance class clutch case by anti-extrusion
It presses the mounting hole plane in process small and seam allowance height, changes the type of flow of metal material.
Detailed description of the invention
Fig. 1 is mold structure diagram of the invention；
Fig. 2 is product product schematic diagram preforming in the embodiment of the present invention；
Fig. 3 is the product product schematic diagram of anti-extrusion in the embodiment of the present invention；
Fig. 4 is product product molding partial structural diagram in a mold in the embodiment of the present invention；
Fig. 5 is product structure figure described in background technique；
In figure, the contour set of 1. upper die holder 2., 5. upper mold core backing plate of spring 3. upper padding plate, 4. upper clamp plate, 6. upper mold core 7. second
Under upper 8. third of forming blocks on lower 10. lower clamp plate 11. first of forming blocks of forming blocks 9. first under forming blocks 12. framed 13. second
20. screw of forming blocks 14. lower mold core, 15. lower bolster, 16. lower die holder, 17. product, 18. limited post, 19. mandril, 21. pin 22.
23. guide sleeve seat of central alignment hole, 24. guide pillar seat.
Specific embodiment
The present invention is further elaborated with reference to the accompanying drawings and examples, but is not limitation of the invention.
Embodiment:
A kind of molding indirect-extrusion mould of heavy-gauge sheeting, as shown in Figure 1, including part of the upper die and part of the lower die；
Forming blocks on the part of the upper die, including upper die holder 1, upper padding plate 3, upper clamp plate 4, upper mold core backing plate 5, upper mold core 6, first
Forming blocks 7 on 11 and second, the lower end surface of upper die holder 1 set gradually upper padding plate 3, upper clamp plate 4, upper mold core backing plate 5 from top to bottom
With upper mold core 6, the both ends of upper clamp plate 4, upper mold core backing plate 5 and upper mold core 6 be respectively set on first in forming blocks 11 and second at
Type block 7；
The part of the lower die, including the lower forming blocks 9 of lower die holder 16, lower bolster 15, lower clamp plate 10, lower mold core 14, first and lower die
Frame 12, lower bolster 15 are located at the upper surface of lower die holder 16, and lower mold core 14,15 upper surface of lower bolster is arranged in the upper surface of lower bolster 15
It is additionally provided with lower clamp plate 10, lower clamp plate 10 is respectively provided at the two sides of lower mold core 14, and every piece of 10 upper surface of lower clamp plate is additionally provided with framed 12,
It is additionally provided with the first lower forming blocks 9 and the second lower forming blocks 13 between framed 12 and lower mold core 14, is additionally provided in the first lower forming blocks 9
Forming blocks 8 under third；Mandril 19 is arranged in 14 bottom of lower mold core, and mandril 19 passes through lower bolster 15 and lower die holder 16 and lathe
Connection provides power for the lifting of lower mold core 14, realizes pusher function.
All forming blocks of part of the lower die are fixed on lower clamp plate 10 under framed 12 fixed function.Framed 12 with lower folder
10 annulus of plate is hollow, and lower mold core 14 is in mold center as movable part.Lower bolster 15 protects lower die holder 16 in bottom.
Limited post 18, guide sleeve seat 23 and guide pillar seat 24 are further respectively had between the upper die holder 1 and lower die holder 16.
Forming blocks 11 are movable moving part on described first, are built-in with spring, and spring is connected by contour set 2 with upper padding plate 3
It connects, realizes the binder and pusher function of part of the upper die.
The upper die holder 1 sequentially passes through upper padding plate 3, upper clamp plate 4, upper mold core backing plate 5 and upper mold core 6 by screw and connects
It connects, upper die holder 1 also passes through upper padding plate 3 by screw and is fixedly connected with forming blocks 7 on second.
The upper clamp plate 4, upper mold core backing plate 5 are equipped with pin 21 in upper mold core 6.
Forming blocks 8 and framed 12 pass through screw under under the lower forming blocks 13 of the lower forming blocks 9, second of described first, third
Clamping plate 10 connects, and lower clamp plate 10 passes through lower bolster 15 by screw and connect with lower die holder 16.
Upper clamp plate 4, upper mold core backing plate 5 and the upper mold core 6 is interior to be equipped with central alignment hole 22, also is provided in lower mold core 14
Central alignment corresponding with part of the upper die hole 22.
A kind of backward extrusion technology that slab is body formed, specifically comprises the following steps:
1) product is preforming, the general outline of product is obtained, and draw high the height of product product, is highly 2.0-3.0mm, i.e.,
Reserved volume compensation amount, as shown in Figure 2；
2) it is positioned by the outer profile of product, preforming obtained product blank product is tipped upside down on the mold of reverse-forming；
3) mold is with lathe slide block down, part of the upper die first on forming blocks 11 first contacted with blank product, and be pressed on down
On mould part；
4) forming blocks 11 continue traveling downwardly on the first of part of the upper die, part of the upper die second on forming blocks 7 and upper mold core 6 contact produce
Product type face, in forming process, when molding is near completion, the step surface contact product product of 7 root of forming blocks is disconnected on second
Face, with the completion of forming process, the volume compensation amount reserved in preforming operation passes through 7 root platform of forming blocks on second
The reverse extrusion of rank forces material reverse backflow, to realize the partial thickening overstriking of material, as shown in Figure 3.
In forming process, as shown in figure 4, product product 17 is between part of the upper die and part of the lower die, on second at
Type block 7 is fixed on upper padding plate, and the parts such as upper clamping plate are locked on lathe sliding block, and forming blocks 11 are movable part on first, is led to
The parts such as spring are crossed to connect with upper mold.First lower forming blocks 9 are connect by screw 20 with lower clamp plate 10, and lower clamp plate passes through screw 20
It is connect with lower bolster 15, framed 12 connect lower die holder 16 with lower clamp plate 10 by screw 20, are locked on platen.Lower die
Core 14 is movable part, realizes the material returned by lathe mandril 19.
Claims (9)
1. a kind of molding indirect-extrusion mould of heavy-gauge sheeting, including part of the upper die and part of the lower die, which is characterized in that the upper mold portion
Point, including upper die holder, upper padding plate, upper clamp plate, upper mold core backing plate, upper mold core, forming blocks, upper mold in forming blocks and second on first
The lower end surface of seat sets gradually upper padding plate, upper clamp plate, upper mold core backing plate and upper mold core, upper clamp plate, upper mold core backing plate from top to bottom
Forming blocks in forming blocks and second are respectively set on first with the both ends of upper mold core；
The part of the lower die uses frame structure, including lower die holder, lower bolster, lower clamp plate, lower mold core, the first lower forming blocks second
Lower forming blocks and framed, lower bolster are located at the upper surface of lower die holder, and lower mold core, lower bolster upper surface is arranged in the upper surface of lower bolster
It is additionally provided with lower clamp plate, lower clamp plate is respectively provided at the two sides of lower mold core, and every piece of lower clamp plate upper surface is additionally provided with framed, framed and lower die
It is additionally provided with the first lower forming blocks and the second lower forming blocks between core, is additionally provided with forming blocks under third in the first lower forming blocks；It is described
Lower mold core bottom mandril is set, mandril passes through lower bolster and lower die holder and connect with lathe.
2. the molding indirect-extrusion mould of a kind of heavy-gauge sheeting according to claim 1, which is characterized in that the upper die holder and
Limited post, guide sleeve seat and guide pillar seat are further respectively had between lower die holder.
3. the molding indirect-extrusion mould of a kind of heavy-gauge sheeting according to claim 1, which is characterized in that on described first at
Type block is movable part, is built-in with spring, and spring is connect by contour set with upper padding plate.
4. the molding indirect-extrusion mould of a kind of heavy-gauge sheeting according to claim 1, which is characterized in that the upper die holder is logical
It crosses screw and sequentially passes through upper padding plate, upper clamp plate, upper mold core backing plate and connect with upper mold core, upper die holder also passes through screw across upper padding plate
It is fixedly connected with forming blocks on second.
5. the molding indirect-extrusion mould of a kind of heavy-gauge sheeting according to claim 1, which is characterized in that the upper clamp plate,
Pin is equipped in upper mold core backing plate, upper mold core and lower mold core.
6. the molding indirect-extrusion mould of a kind of heavy-gauge sheeting according to claim 1, which is characterized in that under described first at
Under type block, the second lower forming blocks, third forming blocks and it is framed connect by screw with lower clamp plate, lower clamp plate is passed through down by screw
Backing plate is connect with lower die holder.
7. the molding indirect-extrusion mould of a kind of heavy-gauge sheeting according to claim 1, which is characterized in that the upper clamp plate,
It is equipped with central alignment hole in upper mold core backing plate and upper mold core, also is provided with central alignment corresponding with part of the upper die in lower mold core
Hole.
8. a kind of backward extrusion technology that slab is body formed, which comprises the steps of:
1) product is preforming, the general outline of product is obtained, and draw high the height of product product, i.e., reserved volume compensation amount；
2) it is positioned by the outer profile of product, preforming obtained product blank product is tipped upside down on the mold of reverse-forming；
3) mold is with lathe slide block down, part of the upper die first on forming blocks first contacted with blank product, and be pressed on lower die
On part；
4) forming blocks continue traveling downwardly on the first of part of the upper die, part of the upper die second on forming blocks and upper mold core contact product type
Face, in forming process, when molding is near completion, the section of the step surface contact product product of forming blocks root on second, with
The completion of forming process, in preforming operation reserve volume compensation amount, pass through the reversed of upper die forming block root step
It squeezes, material reverse backflow is forced, to realize the partial thickening overstriking of material.
9. the molding backward extrusion technology of a kind of heavy-gauge sheeting according to claim 8, which is characterized in that described in step 1)
Height be 2.0-3.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811076672.5A CN109013907B (en) | 2018-09-14 | 2018-09-14 | Back extrusion process and die for molding thick plate body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811076672.5A CN109013907B (en) | 2018-09-14 | 2018-09-14 | Back extrusion process and die for molding thick plate body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109013907A true CN109013907A (en) | 2018-12-18 |
| CN109013907B CN109013907B (en) | 2023-07-18 |
Family
ID=64622386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811076672.5A Active CN109013907B (en) | 2018-09-14 | 2018-09-14 | Back extrusion process and die for molding thick plate body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109013907B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113491057A (en) * | 2019-01-14 | 2021-10-08 | 深圳配天智能技术研究院有限公司 | Extrusion shaping assembly, laminated film shaping system and laminated film shaping method |
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|---|---|---|---|---|
| CN1598346A (en) * | 2004-09-06 | 2005-03-23 | 贵州大学 | Method of manufacturing star gear for overdrive clutch |
| JP2006312175A (en) * | 2005-05-06 | 2006-11-16 | Konan Technics Kk | Positioning tool, die assembly and press device |
| CN202479252U (en) * | 2012-03-23 | 2012-10-10 | 河池学院 | Backward extrusion die for aluminum alloy wheel rim of oversize vehicle |
| CN103624148A (en) * | 2012-08-21 | 2014-03-12 | 欧自成 | Cold extrusion die for intermediate gear of one-way clutch |
| CN203565680U (en) * | 2013-12-03 | 2014-04-30 | 天津宇傲工程机械有限公司 | Stamping die for mounting plate of car ventilation cover plate |
| CN104826906A (en) * | 2014-11-27 | 2015-08-12 | 北汽福田汽车股份有限公司 | Workpiece flange forming method and mould |
| CN106216501A (en) * | 2016-08-11 | 2016-12-14 | 上海新朋金属制品有限公司 | The flange hole technology of a kind of slab raising bag backward extrusion and mould thereof |
-
2018
- 2018-09-14 CN CN201811076672.5A patent/CN109013907B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598346A (en) * | 2004-09-06 | 2005-03-23 | 贵州大学 | Method of manufacturing star gear for overdrive clutch |
| JP2006312175A (en) * | 2005-05-06 | 2006-11-16 | Konan Technics Kk | Positioning tool, die assembly and press device |
| CN202479252U (en) * | 2012-03-23 | 2012-10-10 | 河池学院 | Backward extrusion die for aluminum alloy wheel rim of oversize vehicle |
| CN103624148A (en) * | 2012-08-21 | 2014-03-12 | 欧自成 | Cold extrusion die for intermediate gear of one-way clutch |
| CN203565680U (en) * | 2013-12-03 | 2014-04-30 | 天津宇傲工程机械有限公司 | Stamping die for mounting plate of car ventilation cover plate |
| CN104826906A (en) * | 2014-11-27 | 2015-08-12 | 北汽福田汽车股份有限公司 | Workpiece flange forming method and mould |
| CN106216501A (en) * | 2016-08-11 | 2016-12-14 | 上海新朋金属制品有限公司 | The flange hole technology of a kind of slab raising bag backward extrusion and mould thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113491057A (en) * | 2019-01-14 | 2021-10-08 | 深圳配天智能技术研究院有限公司 | Extrusion shaping assembly, laminated film shaping system and laminated film shaping method |
| CN113491057B (en) * | 2019-01-14 | 2023-12-22 | 深圳配天机器人技术有限公司 | Extrusion shaping assembly, film laminating shaping system and film laminating shaping method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109013907B (en) | 2023-07-18 |
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