CN202877317U - Lower die of deflation-type gear shaft forming die - Google Patents
Lower die of deflation-type gear shaft forming die Download PDFInfo
- Publication number
- CN202877317U CN202877317U CN 201220302475 CN201220302475U CN202877317U CN 202877317 U CN202877317 U CN 202877317U CN 201220302475 CN201220302475 CN 201220302475 CN 201220302475 U CN201220302475 U CN 201220302475U CN 202877317 U CN202877317 U CN 202877317U
- Authority
- CN
- China
- Prior art keywords
- gear shaft
- deflation
- die
- diameter hole
- type gear
- 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
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Abstract
The utility model discloses a lower die of a deflation-type gear shaft forming die. The lower die of the deflation-type gear shaft forming die comprises a square base body. A Step-shaped die cavity is arranged in the base body and is composed of a large-diameter hole on the upper portion and a small-diameter hole on the lower portion. A transition holes is formed between the large-diameter hole and the small-diameter hole. A supporting base is arranged at the bottom end of the base body. A transverse deflation channel is arranged in the base body. Deflation screws are combined on the outer side of the deflation channel in a screwed mode. The front end of the deflation channel is horn-shaped. Due to the fact that the gear shaft die cavity of the lower die punches a hot-forging gear shaft, machining efficiency is further improved, punching machining can be carried out on a large scale, accuracy of form and position of the gear shaft is improved.
Description
Technical field
The utility model relates to a kind of counterdie of gas escape type gear shaft mould.
Background technology
Blanking die is the mould that material production is separated along the outline line that seals or open wide.Such as blanking die, perforating die, knife edge die, notch die, edger, parting die etc.After the present gear train process forge hot, the shape basic forming of gear shaft, but dimensional accuracy does not still reach the dimensional requirement of design, need to carry out next step Blanking Shaping and process.
The utility model content
The purpose of this utility model provides a kind of counterdie of gas escape type gear shaft mould, the gear shaft of the gear shaft die cavity that adopts counterdie after to forge hot carries out stamping-out, working (machining) efficiency further improves, and can carry out in enormous quantities punching processing, has improved the accuracy of form and position of gear shaft.
The technical solution of the utility model is as follows:
A kind of counterdie of gas escape type gear shaft mould, include square pedestal, have step-like die cavity in the pedestal, die cavity is that the small diameter bore by top large diameter hole, bottom consists of, be transitional pore between large diameter hole and the small diameter bore, the bottom of pedestal has supporting seat, has horizontal bleed passage in the pedestal, the bleed passage outside is combined with bleed screw, and the bleed passage front end is horn-like.
The upper end of described large diameter hole has chamfering.
The gear shaft of the gear shaft die cavity that the utility model adopts counterdie after to forge hot carries out stamping-out, and working (machining) efficiency further improves, and can carry out in enormous quantities punching processing, has improved the accuracy of form and position of gear shaft.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Referring to accompanying drawing, a kind of counterdie of gas escape type gear shaft mould, include square pedestal 1, have step-like die cavity 2 in the pedestal 1, die cavity 2 is that the small diameter bore 4 by top large diameter hole 3, bottom consists of, it is transitional pore 5 between large diameter hole and the small diameter bore, the bottom of pedestal has supporting seat 6, and the upper end of large diameter hole has chamfering 7, has horizontal bleed passage 8 in the pedestal 1, bleed passage 8 outsides are combined with bleed screw 9, and bleed passage 8 front ends are horn-like.
Claims (2)
1. the counterdie of a gas escape type gear shaft mould, include square pedestal, have step-like die cavity in the pedestal, die cavity is that the small diameter bore by top large diameter hole, bottom consists of, be transitional pore between large diameter hole and the small diameter bore, the bottom of pedestal has supporting seat, has horizontal bleed passage in the pedestal, the bleed passage outside is combined with bleed screw, and the bleed passage front end is horn-like.
2. the counterdie of gas escape type gear shaft mould according to claim 1, it is characterized in that: the upper end of described large diameter hole has chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220302475 CN202877317U (en) | 2012-06-26 | 2012-06-26 | Lower die of deflation-type gear shaft forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220302475 CN202877317U (en) | 2012-06-26 | 2012-06-26 | Lower die of deflation-type gear shaft forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202877317U true CN202877317U (en) | 2013-04-17 |
Family
ID=48068783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220302475 Expired - Fee Related CN202877317U (en) | 2012-06-26 | 2012-06-26 | Lower die of deflation-type gear shaft forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202877317U (en) |
-
2012
- 2012-06-26 CN CN 201220302475 patent/CN202877317U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20140626 |
|
| EXPY | Termination of patent right or utility model |