CN103691810B - The drawing forming mold of air outlet taper pipe shell of automobile engine exhaust system - Google Patents
The drawing forming mold of air outlet taper pipe shell of automobile engine exhaust system Download PDFInfo
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- CN103691810B CN103691810B CN201310584098.5A CN201310584098A CN103691810B CN 103691810 B CN103691810 B CN 103691810B CN 201310584098 A CN201310584098 A CN 201310584098A CN 103691810 B CN103691810 B CN 103691810B
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- China
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- die structure
- lower bolster
- holding pad
- convax mould
- molding concave
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- 238000000465 moulding Methods 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000003490 calendering Methods 0.000 claims abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 3
- 238000004080 punching Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 3
- 210000003205 Muscles Anatomy 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Abstract
The invention provides the drawing forming mold of air outlet taper pipe shell of automobile engine exhaust system, it can solve the problem that surface of the work after the even material integrated punching molding of current upper half shell and lower half shell is wrinkling in a large number.It includes upper die structure and lower die structure, upper die structure includes cope match-plate pattern and molding concave die, molding concave die is installed under described cope match-plate pattern, lower die structure includes lower bolster, holding pad and forming convax mould, lower bolster is installed on lower installation board by counterdie foot, holding pad is installed on lower bolster by lower bolster, forming convax mould is installed on holding pad, upper die structure and lower die structure roll guide guiding matched moulds by independent, it is characterised in that: holding pad is interior, be positioned at the both lateral sides of forming convax mould, longitudinal both sides are respectively symmetrically and are provided with calendering mold insert.
Description
Technical field
The present invention relates to the punch process field of automotive engine component, be specially the drawing forming mold of air outlet taper pipe shell of automobile engine exhaust system.
Background technology
A kind of air outlet taper pipe shell of automobile engine exhaust system, its structure is shown in Fig. 1, it is applied to automobile engine exhaust system hot junction, during installation one end be connected with purifier carrier, the Flange joint of the other end and engine side, its parts precision requires height, these parts mostly were stainless steel precision castings in the past, and therefore its processing cost height and working (machining) efficiency are low.In order to reduce the processing cost of these parts and improve working (machining) efficiency, now progressively adopt the method for punch process to produce this parts, construction features according to these parts, these parts are divided into upper half shell 22 and lower half shell 23 by punch process, see Fig. 2 and Fig. 3, the process route of its punch process is first distinguish punch forming upper half shell and lower half shell, it is welded into entirety again after upper half shell and lower half shell split, in Fig. 1, 24 is the welded seam of upper half shell 22 and lower half shell 23, in order to reduce manufacturing procedure, improve working (machining) efficiency, the drawing and forming of upper half shell and lower half shell adopts the method even expecting integrated punching drawing and forming, but after upper half shell and lower half shell company material are integrally washed into type, surface of the work can be wrinkling in a large number, thus have a strong impact on crudy.In Fig. 2,25 is the big opening end of upper half shell, 26 is the osculum end of upper half shell, 27 is the big opening end of lower half shell, 28 is the osculum end of lower half shell, when upper half shell 22 and lower half shell 23 split, the big opening end 25 of upper half shell and big opening end 27 split of lower half shell, upper half shell osculum end 28 split of osculum end 26 and lower half shell.
Summary of the invention
For the problems referred to above, the invention provides the drawing forming mold of air outlet taper pipe shell of automobile engine exhaust system, it can solve the problem that surface of the work after the even material integrated punching molding of current upper half shell and lower half shell is wrinkling in a large number.
Its technical scheme is such, it includes upper die structure and lower die structure, described upper die structure includes cope match-plate pattern and molding concave die, described molding concave die is installed under described cope match-plate pattern, described lower die structure includes lower bolster, holding pad and forming convax mould, described lower bolster is installed on described lower installation board by counterdie foot, described holding pad is installed on described lower bolster by lower bolster, described forming convax mould is installed on described holding pad, described upper die structure rolls guide guiding matched moulds with lower die structure by independent, it is characterized in that: in described holding pad, it is positioned at the both lateral sides of described forming convax mould, longitudinal both sides are respectively symmetrically and are provided with calendering mold insert.
It is further characterized by
On described lower bolster, the both lateral sides end that is positioned at described holding pad be separately installed with guide stop block, described lower bolster, holding pad, molding concave die transverse ends have Baltimore groove from bottom to top, described guide stop block is embedded in described lower bolster and in the Baltimore groove of holding pad, is also embedded in the described Baltimore groove of described molding concave die with guide stop block described in lower die structure matched moulds process at upper die structure；
Being installed with push rod in described forming convax mould, described push rod, downward through connecting nitrogen spring after described lower bolster, lower bolster, is fixed on lower installation board by fastening bolt bottom described nitrogen spring；
Being provided with ejector pin in described molding concave die, described ejector pin upper end is connected with described cope match-plate pattern by Rectangular Spring；
Under described cope match-plate pattern, on lower bolster, correspondence is provided with limited post respectively.
The drawing forming mold of air outlet taper pipe shell of automobile engine exhaust system of the present invention, holding pad is interior, be positioned at the both lateral sides of described forming convax mould, longitudinal both sides are respectively symmetrically and are provided with calendering mold insert, pressor unit mold insert is formed in the incipient stage of workpiece drawing and forming and delays muscle, thus effectively preventing surface of the work wrinkling；In upper die structure with lower die structure matched moulds process, guide stop block coordinates with Baltimore groove, it is possible to ensure the reliable matched moulds of molding concave die and forming convax mould；It addition, adopt the pressure-plate-force that nitrogen spring binder can be bigger and uniform and stable, it is ensured that after stretching, workpiece size is stable thus meeting processing dimension requirement.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of air outlet taper pipe shell of automobile engine exhaust system of inventive die processing；
Fig. 2 is the structural representation of the upper half shell of the kind air outlet taper pipe shell of automobile engine exhaust system of inventive die processing；
Fig. 3 is the structural representation of the lower half shell of the kind air outlet taper pipe shell of automobile engine exhaust system of inventive die processing；
Fig. 4 is the structural representation under inventive die matched moulds state；
Fig. 5 is the plan structure schematic diagram of lower die structure in inventive die.
Detailed description of the invention
See Fig. 4 and Fig. 5, inventive die includes upper die structure and lower die structure, upper die structure includes cope match-plate pattern 1 and molding concave die 7, molding concave die 7 is installed on cope match-plate pattern 1 time, lower die structure includes lower bolster 2, holding pad 8 and forming convax mould 9, lower bolster 2 is installed on lower installation board 3 by counterdie foot 4, holding pad 8 is installed on lower bolster 2 by lower bolster 5, forming convax mould 9 is installed on holding pad 8, upper die structure and lower die structure are led matched moulds by the independent guide 17 that rolls, in holding pad 8, it is positioned at the both lateral sides of forming convax mould 9, longitudinal both sides are respectively symmetrically and are provided with calendering mold insert 12, 11；On lower bolster 2, the both lateral sides end that is positioned at holding pad 8 be separately installed with guide stop block 6, lower bolster 5, holding pad 8, molding concave die 7 transverse ends have Baltimore groove from bottom to top, guide stop block 6 is embedded in lower bolster 5 with in the Baltimore groove of holding pad 8, and in upper die structure with lower die structure matched moulds process, guide stop block 6 is also embedded in the Baltimore groove of molding concave die 7；Being installed with push rod 13 in forming convax mould 9, push rod 13, downward through connecting nitrogen spring 18 after lower bolster 5, lower bolster 2, is fixed on lower installation board 3 by fastening bolt 21 bottom nitrogen spring 18；Being provided with ejector pin 14 in molding concave die 7, ejector pin 14 upper end is connected with cope match-plate pattern 1 by Rectangular Spring 19；On cope match-plate pattern 1 time, lower bolster 2, correspondence is provided with limited post 15 respectively.In Fig. 4,16 is the independent guide sleeve cushion block rolling guide 17, and 20 is discharging screw；In Fig. 5,10 is locating piece.
Claims (2)
1. the drawing forming mold of air outlet taper pipe shell of automobile engine exhaust system, it includes upper die structure and lower die structure, described upper die structure includes cope match-plate pattern and molding concave die, described molding concave die is installed under described cope match-plate pattern, described lower die structure includes lower bolster, holding pad and forming convax mould, described lower bolster is installed on lower installation board by counterdie foot, described holding pad is installed on described lower bolster by lower bolster, described forming convax mould is installed on described holding pad, described upper die structure rolls guide guiding matched moulds with lower die structure by independent, it is characterized in that: in described holding pad, it is positioned at the both lateral sides of described forming convax mould, longitudinal both sides are respectively symmetrically and are provided with calendering mold insert；
On described lower bolster, the both lateral sides end that is positioned at described holding pad be separately installed with guide stop block, described lower bolster, holding pad, molding concave die transverse ends have Baltimore groove from bottom to top, described guide stop block is embedded in described lower bolster and in the Baltimore groove of holding pad, is also embedded in the described Baltimore groove of described molding concave die with guide stop block described in lower die structure matched moulds process at upper die structure；
Being installed with push rod in described forming convax mould, described push rod, downward through connecting nitrogen spring after described lower bolster, lower bolster, is fixed on lower installation board by fastening bolt bottom described nitrogen spring；
Being provided with ejector pin in described molding concave die, described ejector pin upper end is connected with described cope match-plate pattern by Rectangular Spring.
2. the drawing forming mold of air outlet taper pipe shell of automobile engine exhaust system according to claim 1, it is characterised in that: under described cope match-plate pattern, on lower bolster, correspondence is provided with limited post respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310584098.5A CN103691810B (en) | 2013-11-20 | 2013-11-20 | The drawing forming mold of air outlet taper pipe shell of automobile engine exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310584098.5A CN103691810B (en) | 2013-11-20 | 2013-11-20 | The drawing forming mold of air outlet taper pipe shell of automobile engine exhaust system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103691810A CN103691810A (en) | 2014-04-02 |
| CN103691810B true CN103691810B (en) | 2016-07-06 |
Family
ID=50353565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310584098.5A Active CN103691810B (en) | 2013-11-20 | 2013-11-20 | The drawing forming mold of air outlet taper pipe shell of automobile engine exhaust system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103691810B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878525B (en) * | 2013-11-20 | 2015-12-02 | 无锡曙光模具有限公司 | The weld jig of automobile engine exhaust system air outlet taper pipe inner casing |
| CN111085606B (en) * | 2019-12-25 | 2021-06-08 | 上海日晗精密机械股份有限公司 | Back extrusion plane forming process for end cone type part of automobile exhaust system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4377084A (en) * | 1980-12-29 | 1983-03-22 | The Stolle Corporation | Press apparatus having resilient stop blocks |
| US6772682B1 (en) * | 2003-02-13 | 2004-08-10 | The Minster Machine Company | Press shutheight adjustment using bolster hydraulic tie rod assemblies |
| CN201034870Y (en) * | 2007-04-25 | 2008-03-12 | 宝山钢铁股份有限公司 | terrace die for inducing vehicle plate surface galling defect experiment and tester |
| CN201455084U (en) * | 2009-06-13 | 2010-05-12 | 湖北通达股份有限公司 | Double-layer stainless steel draw die |
| CN102554036A (en) * | 2011-12-29 | 2012-07-11 | 无锡曙光模具有限公司 | Big round mouth mould of diffuser in automobile exhaust gas recirculation system |
| CN203621234U (en) * | 2013-11-20 | 2014-06-04 | 无锡曙光模具有限公司 | Stretching die for air exhaust taper pipe outer shell of automobile engine exhaust system |
-
2013
- 2013-11-20 CN CN201310584098.5A patent/CN103691810B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4377084A (en) * | 1980-12-29 | 1983-03-22 | The Stolle Corporation | Press apparatus having resilient stop blocks |
| US6772682B1 (en) * | 2003-02-13 | 2004-08-10 | The Minster Machine Company | Press shutheight adjustment using bolster hydraulic tie rod assemblies |
| CN201034870Y (en) * | 2007-04-25 | 2008-03-12 | 宝山钢铁股份有限公司 | terrace die for inducing vehicle plate surface galling defect experiment and tester |
| CN201455084U (en) * | 2009-06-13 | 2010-05-12 | 湖北通达股份有限公司 | Double-layer stainless steel draw die |
| CN102554036A (en) * | 2011-12-29 | 2012-07-11 | 无锡曙光模具有限公司 | Big round mouth mould of diffuser in automobile exhaust gas recirculation system |
| CN203621234U (en) * | 2013-11-20 | 2014-06-04 | 无锡曙光模具有限公司 | Stretching die for air exhaust taper pipe outer shell of automobile engine exhaust system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103691810A (en) | 2014-04-02 |
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