CN2159269Y - Die for tapered hole - Google Patents
Die for tapered hole Download PDFInfo
- Publication number
- CN2159269Y CN2159269Y CN 93219288 CN93219288U CN2159269Y CN 2159269 Y CN2159269 Y CN 2159269Y CN 93219288 CN93219288 CN 93219288 CN 93219288 U CN93219288 U CN 93219288U CN 2159269 Y CN2159269 Y CN 2159269Y
- Authority
- CN
- China
- Prior art keywords
- die
- hole
- diameter
- taper hole
- utility
- 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 - Fee Related
Links
Abstract
The utility model relates to a punching die for a tapered hole, which belongs to a punching die, particularly the punching die for tapered holes. The punching head of the upper die and the die hole of the lower die of the utility model are cylindrical. The diameter of the punching head is equal to the minimum hole diameter of a taper hole, and the diameter of the die hole is equal to the maximal hole diameter of the taper hole. The utility model has simple structure, the quality of the punched taper hole is higher, and the cost is low. Large quantity of energy can be saved by the process technology corresponding to the utility model.
Description
The utility model relates to a kind of metal processing stamping die, particularly bellmouth stamping die.
The conventional method of processing bellmouth on steel plate is that elder generation reddens the steel plate heating, stamps out taper hole while hot with tapered punch again.The processing of this tapered punch comparatively bothers, and that its corresponding Sheet Metal Forming Technology wastes energy is many, labor strength is big, steel plate burning, decarburization, inner brilliant in structural change, jagged, phenomenon such as dimensional discrepancy is bigger often appear in the product that processes, on automobile leaf spring, the loosening or fracture of taper hole clipping sheet often appears particularly.
The purpose of this utility model provides a kind of cold working taper hole stamping die, this Mould Machining is simple, its corresponding Sheet Metal Forming Technology can be saved the energy, and the product processed size is accurate, cost is low, quality is high, the smooth no burr of taper hole, metal inside crystal image organization no change.
The utility model is achieved in that patrix drift and counterdie nib are all cylinder, and the patrix punch diameter is the taper hole minimum-value aperture, and the counterdie aperture is the taper hole maximum diameter of hole.
Below, with the embodiment of the present utility model shown in the Figure of description its structure is described in further detail.
Fig. 1 is a structural representation of the present utility model.
This diel is made up of patrix 1 and counterdie 4, and drift 2 and nib 3 all adopt cylinder, and the diameter of drift 2 is the taper hole minimum-value aperture of desiring to add, and the diameter of nib 3 is chosen the maximum gauge of taper hole.When punch press drives the downward punching press of drift 2, can on steel plate, pull out bellmouth by counterdie 3.According to metal deformation rule and test experience, the diameter of nib 3 preferably is chosen as the margin of tolerance upper limit of taper hole maximum diameter of hole, can make the taper hole size that processes more accurate like this.
In the steel plate of embodiment 1:EQ140 automobile, back five, eight hole clipping has taper hole minimum-value aperture 13mm, maximum diameter of hole 14.5
+ 0.3The dimensional requirement of mm, can choose upper punch head diameter is 13mm, the counterdie die throat diameter is 14.8mm or 15mm, generally can only surpass the 0.2mm of maximum allowance size, just can process suitable taper hole.
In the steel plate of embodiment 2:EQ140 type automobile, preceding 4, preceding 6 hole clipping, it is 11mm that the taper hole minimum-value aperture is arranged, the maximum diameter of hole is 12.5
+ 0.3The dimensional requirement of mm, can choose upper punch head diameter is 11mm, the counterdie die throat diameter is 12.8mm or 13mm, just can stamp out needed taper hole.
By the technical scheme that above-mentioned the utility model proposed, this mould simple in structure, easy to manufacture, corresponding Sheet Metal Forming Technology is saved the energy, can alleviate working strength of workers, and institute's product processed size is accurate, cost is low, no burr, inner crystalline substance be as no change.
Claims (2)
1, a kind of taper hole stamping die, it is made up of upper die and lower die, it is characterized in that the shape of patrix drift and counterdie nib is all cylinder, and the diameter of drift equals the minimum-value aperture of taper hole, and die throat diameter equals the taper hole maximum diameter of hole.
2, by the described taper hole stamping die of claim 1, it is characterized in that the preferably margin of tolerance upper limit of taper hole maximum diameter of hole of die throat diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93219288 CN2159269Y (en) | 1993-07-19 | 1993-07-19 | Die for tapered hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93219288 CN2159269Y (en) | 1993-07-19 | 1993-07-19 | Die for tapered hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2159269Y true CN2159269Y (en) | 1994-03-23 |
Family
ID=33798708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93219288 Expired - Fee Related CN2159269Y (en) | 1993-07-19 | 1993-07-19 | Die for tapered hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2159269Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399801A (en) * | 2014-10-24 | 2015-03-11 | 无锡市派克重型铸锻有限公司 | Punching method for preventing high cylinder forging from generating flange |
-
1993
- 1993-07-19 CN CN 93219288 patent/CN2159269Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399801A (en) * | 2014-10-24 | 2015-03-11 | 无锡市派克重型铸锻有限公司 | Punching method for preventing high cylinder forging from generating flange |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: WU YUMO; ZHANG GUILIN TO: YUNNAN AUTO INDUSTRIAL AND TRADE GENERAL CO. |
|
| CP03 | Change of name, title or address |
Address after: 650106 Yunnan Kunming heilinpu Patentee after: Yunnan Vehicle Industry Trade Industry Corp. Address before: 650106 Kunming city Yunnan heilinpu car Patentee before: Wu Yupi Patentee before: Zhang Guilin |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |