CN103722112A - Core rod structure for freely forging long sleeve - Google Patents
Core rod structure for freely forging long sleeve Download PDFInfo
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- CN103722112A CN103722112A CN201310627672.0A CN201310627672A CN103722112A CN 103722112 A CN103722112 A CN 103722112A CN 201310627672 A CN201310627672 A CN 201310627672A CN 103722112 A CN103722112 A CN 103722112A
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- core body
- core rod
- chuck
- core
- rod structure
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Abstract
The invention relates to a core rod structure for freely forging long sleeves. The core rod structure comprises a core body and a chuck, wherein the chuck and the tail of the core body are connected into a whole. The external diameter of the core body gradually and progressively increases from head to tail, and then the core body forms a conical body. The core rod structure is simple in structure and easy and convenient to manufacture, the external diameter of the core body gradually and progressively increases from one end to the other end, the core body forms conicity, and therefore the more fire production phenomenon and the locking phenomenon generated between a core rod and a forged piece when the core rod is drawn out are avoided; the chuck is arranged, the core rod structure is convenient to clamp, the core rod is convenient to draw out, the quality of products is greatly improved, and drawing out efficiency of the core rod is improved.
Description
Technical field
The present invention relates to forging field, relate in particular to a kind of mandrel structure for flat-die forging long sleeve.
Background technology
Traditional Forging Technology generally adopts the method for blanking, jumping-up, punching and core bar drawing for the forging of long sleeve class at present, core bar drawing is that the external diameter of hollow blank is reduced, internal diameter is constant, a kind of pulling distortion operation that length increases, mostly tradition core bar drawing method is to adopt cylindricality plug, this mandrel structure easily causes many fire to produce and locking phenomenon when pulling, cause plug to extract, cause forging to scrap, affect production efficiency, enable to extract and also cause product wall unevenness even, produce Wall-Thickness Difference, affect product quality.
Summary of the invention
The applicant, for above-mentioned existing issue, is studied improvement, and a kind of mandrel structure for flat-die forging long sleeve is provided, and not only effectively raises production efficiency, has also improved the quality of product after core bar drawing.
The technical solution adopted in the present invention is as follows:
For a mandrel structure for flat-die forging long sleeve, comprise core body and the chuck being connected to form one with the afterbody of core body, the external diameter of the stem of described core body to the external diameter of afterbody is gradually and increases progressively, and makes described core body form bullet.
Its further technical scheme is:
Core body and chuck are coaxially arranged;
Chuck is rectangle;
The maximum outside diameter of described core body is all positioned at the rectangle that described chuck four edges forms.
Beneficial effect of the present invention is as follows:
The present invention is simple in structure, it is easy to manufacture, in the present invention, one end external diameter of core body is gradually and increases progressively to other end external diameter, make core body form tapering, while having avoided core bar drawing and forging produce many fire and produce and locking phenomenon, by chuck is set, be convenient to clamping, plug is chosen conveniently simultaneously, greatly improve product quality, improved the efficiency of core bar drawing.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is the side view of Fig. 1.
Wherein: 1, core body; 2, chuck; 101, stem; 102, afterbody.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As shown in Figure 1 and Figure 2, the chuck 2 that the present invention includes core body 1 and be connected to form one with the afterbody 102 of core body 1, chuck 2 is rectangle.The external diameter of the stem 101 of core body 1 to the external diameter of afterbody 102 is gradually and increases progressively, and makes core body 1 form bullet, and core body 1 is coaxially arranged with chuck 2.The maximum outside diameter of described core body 1 is all positioned at the rectangle that described chuck 2 four edges form.
More than describing is explanation of the invention, is not the restriction to invention, and limited range of the present invention, referring to claim, within protection scope of the present invention, can be done any type of modification.
Claims (4)
1. the mandrel structure for flat-die forging long sleeve, it is characterized in that: comprise core body (1) and the chuck (2) being connected to form one with the afterbody (102) of core body (1), the external diameter of the stem (101) of described core body (1) to the external diameter of afterbody (102) is gradually and increases progressively, and makes described core body (1) form bullet.
2. a kind of mandrel structure for flat-die forging long sleeve as claimed in claim 1, is characterized in that: described core body (1) is coaxially arranged with chuck (2).
3. a kind of mandrel structure for flat-die forging long sleeve as claimed in claim 1, is characterized in that: described chuck (2) is rectangle.
4. a kind of mandrel structure for flat-die forging long sleeve as claimed in claim 1, is characterized in that: the maximum outside diameter of described core body (1) is all positioned at the rectangle that described chuck (2) four edges forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310627672.0A CN103722112A (en) | 2013-11-29 | 2013-11-29 | Core rod structure for freely forging long sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310627672.0A CN103722112A (en) | 2013-11-29 | 2013-11-29 | Core rod structure for freely forging long sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103722112A true CN103722112A (en) | 2014-04-16 |
Family
ID=50446541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310627672.0A Pending CN103722112A (en) | 2013-11-29 | 2013-11-29 | Core rod structure for freely forging long sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103722112A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802192A (en) * | 2019-10-12 | 2020-02-18 | 中冶陕压重工设备有限公司 | Core rod for drawing cylinder and using method thereof |
| CN112211015A (en) * | 2020-09-30 | 2021-01-12 | 江阴泰阳成索业有限公司 | Rotary forging and drawing die for high-efficiency production of surface-contact steel wire rope |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1872447A (en) * | 2005-06-03 | 2006-12-06 | 大连大学 | Forging technique of full fiber for hollow cone axis in express locomotive |
| CN102151777A (en) * | 2010-12-30 | 2011-08-17 | 二重集团（德阳）重型装备股份有限公司 | Process for forging cake-like forge piece with shoulder |
| CN202079182U (en) * | 2011-03-04 | 2011-12-21 | 中信重工机械股份有限公司 | Combined core rod used for conical cylinder body forging with form copying method |
| CN203649262U (en) * | 2013-11-29 | 2014-06-18 | 苏州市宏晟锻造有限公司 | Core rod structure for freely forging long sleeve |
-
2013
- 2013-11-29 CN CN201310627672.0A patent/CN103722112A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1872447A (en) * | 2005-06-03 | 2006-12-06 | 大连大学 | Forging technique of full fiber for hollow cone axis in express locomotive |
| CN102151777A (en) * | 2010-12-30 | 2011-08-17 | 二重集团（德阳）重型装备股份有限公司 | Process for forging cake-like forge piece with shoulder |
| CN202079182U (en) * | 2011-03-04 | 2011-12-21 | 中信重工机械股份有限公司 | Combined core rod used for conical cylinder body forging with form copying method |
| CN203649262U (en) * | 2013-11-29 | 2014-06-18 | 苏州市宏晟锻造有限公司 | Core rod structure for freely forging long sleeve |
Non-Patent Citations (2)
| Title |
|---|
| 辛宗仁等: "《胎模锻工艺》", 31 October 1977 * |
| 阙基容等: "铝合金筒体锻件芯轴拔长工艺及生产特点", 《铝加工》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802192A (en) * | 2019-10-12 | 2020-02-18 | 中冶陕压重工设备有限公司 | Core rod for drawing cylinder and using method thereof |
| CN112211015A (en) * | 2020-09-30 | 2021-01-12 | 江阴泰阳成索业有限公司 | Rotary forging and drawing die for high-efficiency production of surface-contact steel wire rope |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140416 |