CN2902521Y - Cold heading reducing concave mould having bi-ring reducing belt - Google Patents
Cold heading reducing concave mould having bi-ring reducing belt Download PDFInfo
- Publication number
- CN2902521Y CN2902521Y CN 200620028591 CN200620028591U CN2902521Y CN 2902521 Y CN2902521 Y CN 2902521Y CN 200620028591 CN200620028591 CN 200620028591 CN 200620028591 U CN200620028591 U CN 200620028591U CN 2902521 Y CN2902521 Y CN 2902521Y
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- CN
- China
- Prior art keywords
- die
- undergauge
- band
- cushion
- reducing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
A cold heading necked-in cavity die with two ring necked-in bands comprises a die core, a die sleeve and a die cushion. The utility model is characterized in that the die core and the die cushion are positioned inside the die sleeve, the die core, the die sleeve and the die cushion are combined together tightly, and a second necked-in band is positioned on the die core at a certain distance away from a first necked-in band. The utility model has the advantages of eliminating bend on the rod of the slender rod bolts, ensuring quality of product, decreasing processing procedure, and cutting down production cost.
Description
Technical field
The utility model belongs to the bolt technical field of processing elongate rod, particularly a kind of cold-heading undergauge die with dicyclo undergauge band.
Background technology
The undergauge mould of traditional cold-heading product does not have dicyclo undergauge band, and one time undergauge can not be eliminated the bending of bar portion, and quality can not get guaranteeing.The diameter reducing process of traditional cold-heading product is the technology that adopts the secondary undergauge.The technology of secondary undergauge need increase grinding process and have the shortcoming of adjusting difficulty.
Summary of the invention
The purpose of this utility model is exactly the deficiency at said structure, designs a kind of cold-heading undergauge die with dicyclo undergauge band.
The technical solution of the utility model is achieved in that
A kind of cold-heading undergauge die with dicyclo undergauge band, it is characterized by: it is made up of core rod, die sleeve, die-cushion, and core rod and die-cushion are installed in the die sleeve, and core rod, die sleeve, die-cushion are combined closely.
A kind of cold-heading undergauge die with dicyclo undergauge band is characterized by: there is the second undergauge band position of the certain distance of described core rod behind first undergauge band.
The utility model can be eliminated the bar portion bending of elongate rod bolt, guarantees product quality; Reduce manufacturing procedure, reduce production costs.
Description of drawings
Fig. 1 is the utility model structural representation.
Specific embodiments
A kind of cold-heading undergauge die with dicyclo undergauge band, it is characterized by: it is made up of core rod 1, die sleeve 2, die-cushion 3, and core rod 1 is installed in the die sleeve 2 with die-cushion 3, and core rod 1, die sleeve 2, die-cushion 3 are combined closely.
A kind of cold-heading undergauge die with dicyclo undergauge band is characterized by: there is the second undergauge band position of the certain distance of described core rod 1 behind first undergauge band.
Describe its concrete course of work in detail below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of cold-heading undergauge die with dicyclo undergauge band, it is that the cold-heading die has dicyclo undergauge band, its structure is that the position of the certain distance behind first undergauge band has one second undergauge band again, the second undergauge band plays the effect of correction to the metal that contracts out from first undergauge band, guarantees that it is not crooked.
The reducing die of this structure can guarantee: when the ratio A of the undergauge length L of part and diameter D greater than 5 to 14 the time, can once finish the bending that undergauge does not produce bar portion.Also can avoid simultaneously need increasing grinding process and having the shortcoming of adjusting difficulty because of the technology that adopts the secondary undergauge.
Claims (2)
1, a kind of cold-heading undergauge die with dicyclo undergauge band, it is characterized by: it is made up of core rod (1), die sleeve (2), die-cushion (3), and core rod (1) is installed in the die sleeve (2) with die-cushion (3), and core rod (1), die sleeve (2), die-cushion (3) are combined closely.
2, a kind of cold-heading undergauge die with dicyclo undergauge band according to claim 1, it is characterized by: there is the second undergauge band position of the certain distance of described core rod (1) behind first undergauge band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620028591 CN2902521Y (en) | 2006-04-12 | 2006-04-12 | Cold heading reducing concave mould having bi-ring reducing belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620028591 CN2902521Y (en) | 2006-04-12 | 2006-04-12 | Cold heading reducing concave mould having bi-ring reducing belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2902521Y true CN2902521Y (en) | 2007-05-23 |
Family
ID=38077924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620028591 Expired - Lifetime CN2902521Y (en) | 2006-04-12 | 2006-04-12 | Cold heading reducing concave mould having bi-ring reducing belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2902521Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912921A (en) * | 2010-07-15 | 2010-12-15 | 宏茂五金(昆山)有限公司 | Bolt toothed bar mould |
| CN102274916A (en) * | 2011-05-26 | 2011-12-14 | 浙江永华紧固件有限公司 | Special die assembly for cold upsetting of tapered wedge bolt |
| CN103386453A (en) * | 2013-07-29 | 2013-11-13 | 富奥汽车零部件股份有限公司 | Manufacturing method of multislot eccentric workpiece and cold heading reducing die |
-
2006
- 2006-04-12 CN CN 200620028591 patent/CN2902521Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912921A (en) * | 2010-07-15 | 2010-12-15 | 宏茂五金(昆山)有限公司 | Bolt toothed bar mould |
| CN102274916A (en) * | 2011-05-26 | 2011-12-14 | 浙江永华紧固件有限公司 | Special die assembly for cold upsetting of tapered wedge bolt |
| CN103386453A (en) * | 2013-07-29 | 2013-11-13 | 富奥汽车零部件股份有限公司 | Manufacturing method of multislot eccentric workpiece and cold heading reducing die |
| CN103386453B (en) * | 2013-07-29 | 2015-09-09 | 富奥汽车零部件股份有限公司 | A kind of multiple-grooved eccentric work piece manufacture method and cold-heading stem reducing mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGCHUN TAAO JINHUAN CAR PRODUCTS CO., LTD. Free format text: FORMER OWNER: CHINA NO.1 AUTOMOBILE GROUP CO., LTD. Effective date: 20100115 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100115 Address after: No. 245, Shenzhen street, Changchun economic and Technological Development Zone, Jilin 130033, China Patentee after: Changchun Taao Jinhuan Automobile Products Co., Ltd. Address before: No. 83 Dongfeng Street, Jilin, Changchun: 130011 Co-patentee before: Fawer Beijing Great Automotive Components Company Limited Patentee before: China First Automobile Group Corporation |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070523 |
|
| EXPY | Termination of patent right or utility model |