CN105149434B - Cold stamping technology of tensile barrel with flanged hole - Google Patents
Cold stamping technology of tensile barrel with flanged hole Download PDFInfo
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- CN105149434B CN105149434B CN201510614024.0A CN201510614024A CN105149434B CN 105149434 B CN105149434 B CN 105149434B CN 201510614024 A CN201510614024 A CN 201510614024A CN 105149434 B CN105149434 B CN 105149434B
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- barrel
- elonged
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- elonged barrel
- circle
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Abstract
The invention relates to a cold stamping technology of a tensile barrel with a flanged hole. The cold stamping technology is characterized by comprising the following steps: (1) enabling the tensile barrel to be stretched into a required height and a required diameter; (2) performing flanging on the tensile barrel obtained in the step (1), and then stamping off the bottom of the barrel; (3) shaping the bottom filleted corner into a required size by adopting a forming punch with a filleted corner at the head; (4) maintaining the internal shape of the tensile barrel by adopting the forming punch, forming a circle in the bottom of the tensile barrel in a cutting manner by adopting a circular knife edge, wherein the diameter of the formed circle is consistent with the inner diameter of the tensile barrel and the circle center of the formed circle is consistent with that of the tensile barrel; (5) stamping off the circular bottom along the circle formed in the bottom of the tensile barrel in the cutting manner in the step (4); and (6) shaping the tensile barrel under the effect of a shaping punch by adopting a concave die and lower height limit blocks. Through the adoption of the cold stamping technology disclosed by the invention, the diameter of the tensile barrel and the height of the tensile barrel are guaranteed, and the opening of the tensile barrel does not crack; besides, the production efficiency is improved, and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of cold punching technology with hole flanging elonged barrel, belong to Sheet Metal Forming Technology technical field.
Background technology
In prior art, in the work piece production technique with hole flanging elonged barrel, usually after the completion of workpiece flanging, then will
The bottom of elonged barrel is washed out；Rush and punching press is carried out to the hole a and hole b of workpiece during bottom simultaneously, ensure that the position between three holes well
Degree of putting.The workpiece size obtaining after elonged barrel flange is highly unstable, and it is thinning serious to stretch bunghole part material, adopts in the past
With the size of elonged barrel is done height, subsequently to workpiece Vehicle Processing, to ensure that the size of elonged barrel conciliates the problem of breach portion cracking.
But adopt and can not solve the problems, such as that oral area ftractures from root in this way, simply by the material of cracking in follow-up machining
Machine away.In order to solve the problems, such as to stretch bunghole part cracking, take substantial amounts of human and material resources, not only have impact on the section of production
Play, and also reduce production efficiency, this problem is problem in the urgent need to address at present.
In prior art, the Sheet Metal Forming Technology with hole flanging elonged barrel is: elonged barrel as shown in figure 3-1, is first stretched to institute by (1)
The height of need and diameter, and ensure the head fillet of elonged barrel stably；(2) as shown in figure 3-2, by after the completion of elonged barrel flanging
Bucket bottom is washed out it is ensured that the cylinder material volume before and after flange is consistent；(3) as shown in Fig. 3-3, enough big with a head fillet
The round edge flange that elonged barrel head stays is right-angle side by punch.The shortcoming of above-mentioned technique be flange after stretching bunghole part
Material is thinning serious, and cracking ratio is higher；Next to that the end face of flange after-drawing bucket uneven it is impossible to stable guarantee drawing
Require, need follow-up mechanical process.
Content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, provides a kind of cold stamping work with hole flanging elonged barrel
Skill, the diameter of elonged barrel and height are guaranteed, and the oral area of elonged barrel does not have cracking phenomena；Ensure that this workpiece in punch press
On complete required size punching press, thus improve production efficiency, saved production cost.
According to the present invention provide technical scheme, the described cold punching technology with hole flanging elonged barrel, it is characterized in that, including with
Lower step:
(1) elonged barrel is stretched to required height and diameter；
(2) elonged barrel obtaining step (1) carries out after flanging washing out bucket bottom；
(3) bottom roundings of elonged barrel are shaped into required size by the forming punching head using head with fillet；
(4) using forming punching head, the interior shape of elonged barrel is maintained, the bottom of elonged barrel adopts circular knife edge by elonged barrel
Bottom cuts out circle, and the round diameter cutting out and the center of circle are consistent with the internal diameter and the center of circle of elonged barrel；
(5) circle cutting out in stretching bottom of the barrel along step (4), the circle cutting out is washed out；
(6) shaping is carried out to elonged barrel in the presence of reforming plunger using lower cavity die and lower limit for height block.
In described step (1), elonged barrel is stretched to when required height and diameter it is ensured that stretching bottom of the barrel has fillet.
In described step (2), the volume before and after elonged barrel flange is consistent.
In described step (6), the concave die cavity of lower cavity die is coincide with the outer wall of elonged barrel, and lower limit for height block is located at elonged barrel
Bottom, reforming plunger stretches in stretching barrel cavity, carries out shaping to elonged barrel.
Cold punching technology with hole flanging elonged barrel of the present invention, rearranges so that stretching to the technique of elonged barrel
The diameter of bucket and height have guarantee, and more importantly the oral area of elonged barrel does not have cracking phenomena；Using of the present invention
Cold punching technology, stretching bunghole part deformation very little, there is not cracking risk, eliminate follow-up machining it is ensured that
This workpiece all can complete size punching press used on punch press, thus improve production efficiency, has saved production cost.
Brief description
Fig. 1 is the operating diagram with hole flanging elonged barrel.
Fig. 2 is the top view of Fig. 1.
Fig. 3-1 is the schematic diagram that in existing Sheet Metal Forming Technology, stretching obtains elonged barrel.
Fig. 3-2 is that in existing Sheet Metal Forming Technology, elonged barrel rushes the schematic diagram behind bottom.
Fig. 3-3 be existing Sheet Metal Forming Technology in by elonged barrel head round edge flange be right-angle side after schematic diagram.
Fig. 4-1 is the schematic diagram that in cold punching technology of the present invention, stretching obtains elonged barrel.
Fig. 4-2 is that in cold punching technology of the present invention, elonged barrel rushes the schematic diagram behind bottom.
Fig. 4-3 is by the schematic diagram of elonged barrel head fillet shaping in cold punching technology of the present invention.
Fig. 4-4 is the schematic diagram cutting out circle in cold punching technology of the present invention in stretching bottom of the barrel.
Fig. 4-5 is the schematic diagram washing out the circle that stretching bottom of the barrel cuts out in cold punching technology of the present invention.
Fig. 4-6 is the logical schematic diagram carrying out shaping using reforming plunger of stretching in cold punching technology of the present invention.
Specific embodiment
With reference to concrete accompanying drawing, the invention will be further described.
The described cold punching technology with hole flanging elonged barrel, comprises the following steps:
(1) as shown in Fig. 4-1, first elonged barrel is stretched to required height and diameter, and ensures the bottom circle of elonged barrel
Angle is stable；
(2) as shown in the Fig. 4-2, elonged barrel step (1) being obtained carries out after flanging washing out bucket bottom, and ensures to stretch
Volume before and after bucket flange is consistent；
(3) as shown in Fig. 4-3, the bottom roundings of elonged barrel are shaped into by the forming punching head using a head fillet very little
Required size；
(4) as shown in Fig. 4-4, using forming punching head, the interior shape of elonged barrel is maintained, the bottom of elonged barrel is using circular
The edge of a knife cuts out circle by stretching bottom of the barrel, and the round diameter cutting out and the center of circle are consistent with the internal diameter and the center of circle of elonged barrel；
(5) as illustrated in figures 4-5, the circle cutting out along step (4) in stretching bottom of the barrel, the circle cutting out is washed out；
(6) as Figure 4-Figure 6, using lower cavity die 1 as Figure 4-Figure 6 and lower limit for height block 2 in the presence of reforming plunger 3
Shaping is carried out to elonged barrel；The concave die cavity of described lower cavity die 1 is coincide with the outer wall of elonged barrel, and reforming plunger stretches in elonged barrel
In chamber, shaping is carried out to elonged barrel；Described lower limit for height block 2 is located at the bottom of elonged barrel, for limiting the height of elonged barrel.
Cold punching technology with hole flanging elonged barrel of the present invention, rearranges so that stretching to the technique of elonged barrel
The diameter of bucket and height have guarantee, and more importantly the oral area of elonged barrel does not have cracking phenomena；Using of the present invention
Cold punching technology, stretching bunghole part deformation very little, there is not cracking risk, eliminate follow-up machining it is ensured that
This workpiece all can complete size punching press used on punch press, thus improve production efficiency, has saved production cost.
Claims (4)
1. a kind of cold punching technology with hole flanging elonged barrel, is characterized in that, comprise the following steps:
(1) elonged barrel is stretched to required height and diameter；
(2) elonged barrel obtaining step (1) carries out after flanging washing out bucket bottom；
(3) bottom roundings of elonged barrel are shaped into required size by the forming punching head using head with fillet；
(4) using forming punching head, the interior shape of elonged barrel is maintained, the bottom of elonged barrel will stretch bottom of the barrel using circular knife edge
Cut out circle, the round diameter cutting out and the center of circle are consistent with the internal diameter of elonged barrel and the center of circle；
(5) circle cutting out in stretching bottom of the barrel along step (4), the circle cutting out is washed out；
(6) shaping is carried out to elonged barrel in the presence of reforming plunger using lower cavity die and lower limit for height block.
2. the cold punching technology with hole flanging elonged barrel as claimed in claim 1, is characterized in that: in described step (1), elonged barrel
It is stretched to when required height and diameter it is ensured that stretching bottom of the barrel has fillet.
3. the cold punching technology with hole flanging elonged barrel as claimed in claim 1, is characterized in that: in described step (2), elonged barrel
Volume before and after flange is consistent.
4. the cold punching technology with hole flanging elonged barrel as claimed in claim 1, is characterized in that: in described step (6), lower cavity die
(1) concave die cavity is coincide with the outer wall of elonged barrel, and lower limit for height block (2) is located at the bottom of elonged barrel, and reforming plunger stretches into stretching
In barrel cavity, shaping is carried out to elonged barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510614024.0A CN105149434B (en) | 2015-09-23 | 2015-09-23 | Cold stamping technology of tensile barrel with flanged hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510614024.0A CN105149434B (en) | 2015-09-23 | 2015-09-23 | Cold stamping technology of tensile barrel with flanged hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105149434A CN105149434A (en) | 2015-12-16 |
| CN105149434B true CN105149434B (en) | 2017-01-25 |
Family
ID=54790637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510614024.0A Active CN105149434B (en) | 2015-09-23 | 2015-09-23 | Cold stamping technology of tensile barrel with flanged hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105149434B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750408A (en) * | 2016-03-31 | 2016-07-13 | 苏州三维精密机械有限公司 | Hole wall thickness control type plate hole flanging and punching process |
| CN111570588A (en) * | 2020-06-01 | 2020-08-25 | 贵州航天新力铸锻有限责任公司 | Progressive forming composite die for Y-shaped forge piece |
| CN111570587A (en) * | 2020-06-01 | 2020-08-25 | 贵州航天新力铸锻有限责任公司 | Method for stretch flanging integrated incremental forming of Y-shaped forged piece with skirt edge |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0911198A (en) * | 1995-06-30 | 1997-01-14 | Daisou Kk | Punching vessel and punching edge |
| DE19532455A1 (en) * | 1995-09-04 | 1997-03-06 | Uebach Apparatebau Gmbh | Forming process for flanges on metal plates, esp. barrel heads |
| CN201186326Y (en) * | 2008-05-09 | 2009-01-28 | 郭永环 | Composite punching mold |
| CN102896191B (en) * | 2012-10-15 | 2015-08-05 | 成都豪能科技股份有限公司 | Small round corner apparatus for shaping and shaping methods thereof |
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2015
- 2015-09-23 CN CN201510614024.0A patent/CN105149434B/en active Active
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| Publication number | Publication date |
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| CN105149434A (en) | 2015-12-16 |
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Address after: 214199 Donggang Town, Xishan District, Jiangsu, China Patentee after: Jiangsu ZOJE Seiko Polytron Technologies Inc Address before: Donggang Guo Town Industrial Park of Xishan District, Wuxi city of Jiangsu Province in 214199 Patentee before: Wuxi Zhongjie Vibration Isolators Co., Ltd. |
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