CN218310350U - Punching device for forming thin-wall deep blind hole shell - Google Patents
Punching device for forming thin-wall deep blind hole shell Download PDFInfo
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- CN218310350U CN218310350U CN202222443138.1U CN202222443138U CN218310350U CN 218310350 U CN218310350 U CN 218310350U CN 202222443138 U CN202222443138 U CN 202222443138U CN 218310350 U CN218310350 U CN 218310350U
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- die
- guide ring
- punching device
- blind hole
- die holder
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Abstract
The utility model discloses a be used for fashioned punching device of dark blind hole casing of thin wall has solved current punching device and has lacked centering mechanism, the relatively poor problem of product precision. The technical scheme includes that the die holder comprises an outer die cavity, a female die arranged in the outer die cavity and a guide ring positioned on the top surface of the die holder, a central through hole for inserting a punch is formed in the center of the guide ring, and the female die is provided with an inner die cavity larger than the outer diameter of a shell. The utility model has the advantages of stability is good, quick centering, effectively improve the product precision height.
Description
Technical Field
The utility model relates to a forge the field, specific be used for fashioned punching device of deep blind hole casing of thin wall that says so.
Background
For the molding of large deep blind hole shells, bar machining is adopted at present, namely blind holes are directly machined by turning after bars are forged, and the process has the advantages of long machining period, high machining cost, serious material waste, large machining allowance, long working hours, high machining cost, discontinuous internal fiber structure and poor mechanical property.
Publication No. CN 112139417A discloses a forging forming method of an ultra-large deep blind hole shell, and the punching device used in the blank punching step consists of an outer die with a conical inner hole, a punch rod connected with a cross beam of a press and an ejection device positioned at the bottom of the outer die. The blank is directly placed in an outer die and punched by a punch, and the product precision is seriously influenced due to the lack of a centering mechanism.
Disclosure of Invention
The utility model aims at solving the technical problem and providing a simple structure, easily operation, can effective quick centering, improve the fashioned punching device of deep blind hole casing of thin wall of product precision.
The utility model is used for fashioned punching device of deep blind hole casing of thin wall, including the die holder that has outer die cavity, still including the die of locating the outer die cavity and the guide ring that is located the die holder top surface, open at the guide ring center has the central through-hole that supplies the jumper bar male, the die has the interior die cavity that is greater than casing external diameter.
The die is characterized in that the top surface of the female die is provided with an annular centering groove, and the bottom surface of the guide ring is provided with an annular centering boss which can be correspondingly inserted into the centering groove.
The outer diameter of the guide ring is larger than that of the die holder.
The outer diameter of the guide ring is 100-200mm larger than that of the die holder.
The utility model discloses in punching step of blank for punching device, the purpose of effectively punching a hole is realized jointly to the guide ring three through the die holder that has the external cavity, locate the die of external cavity and be located the die holder top surface, compares in the current punching device who only has the external mold, the utility model discloses punching device has that stability is good, quick centering, advantage that the precision is high.
Drawings
FIG. 1 is a front view of a female die structure of the punching device of the present invention;
fig. 2 is a front view of the die holder structure of the punching device of the present invention;
fig. 3 is a schematic structural view of the punching apparatus of the present invention, namely a schematic drawing of a punching state;
wherein, 1-punch, 2-guide ring, 2.1-centering boss, 3-central through hole, 4-centering groove, 5-female die, 6-inner die cavity, 7-die holder and 8-outer die cavity.
Detailed Description
The invention will be further explained with reference to the drawings:
referring to fig. 1-3, the punching device comprises a die holder 7 with an outer cavity 8, a female die 5 (the outer diameter of the female die 5 is the same as the inner diameter of the outer cavity 8 of the die holder 7) arranged in the outer cavity 8, and a guide ring 2 positioned on the top surface of the die holder 7, wherein a central through hole 3 for inserting the punch 1 is formed in the center of the guide ring 2 (preferably, the central through hole 3 is 0.5-1mm larger than the upper diameter of the punch 1), and the female die 5 has an inner cavity 6 with the size larger than the outer diameter of the shell. The die is characterized in that the top surface of the female die 5 is provided with an annular centering groove 4, the outer diameter of the guide ring 2 is larger than the outer diameter of the die holder 7 (preferably larger than the outer diameter of the die holder 7 by 100-200 mm), and the bottom surface of the guide ring 2 is provided with an annular centering boss 2.1 which can be correspondingly inserted into the centering groove 4.
In the blank punching step for forming the thin-wall deep blind hole shell:
firstly, connecting a punch 1 with a press, and placing a female die 5 in an outer cavity 8 in a die holder 7; and (2) returning the conical blank to the furnace at 1270 +/-10 ℃ and keeping the temperature, discharging the conical blank, then lifting the heated conical blank into an inner cavity of a female die 5, then placing a guide ring 2 on the top surface of a die holder 7, just inserting a centering boss 2.1 of the guide ring 2 into a centering groove 4, applying force to a press to enable a punch rod 1 to downwards penetrate through a central through hole 3 of the guide ring 2 and press the punch rod to the center of the conical blank to press the conical blank to a specified position to form a blind hole, lifting the punch rod 1, firstly lifting the guide ring 2 away, lifting the blind hole blank out, and performing die forging to obtain the blind hole blank.
Claims (4)
1. The utility model provides a punching device for shaping of thin wall deep blind hole casing, is including the die holder that has the appearance die cavity, its characterized in that, still including locating the die of appearance die cavity and being located the guide ring of die holder top surface, the guide ring center is opened has the central through-hole that supplies the jumper bar male, the die has the interior die cavity that is greater than casing external diameter size.
2. The punching device for forming the thin-walled deep blind hole shell according to claim 1, wherein the top surface of the female die is provided with an annular centering groove, and the bottom surface of the guide ring is provided with an annular centering boss which can be inserted into the centering groove correspondingly.
3. The punching apparatus for forming the thin-walled deep blind shell according to claim 1 or 2, wherein the outer diameter of the guide ring is larger than the outer diameter of the die holder.
4. The punching apparatus for forming the thin-walled deep blind hole shell according to claim 3, wherein the outer diameter of the guide ring is 100-200mm larger than the outer diameter of the die holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222443138.1U CN218310350U (en) | 2022-09-15 | 2022-09-15 | Punching device for forming thin-wall deep blind hole shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222443138.1U CN218310350U (en) | 2022-09-15 | 2022-09-15 | Punching device for forming thin-wall deep blind hole shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218310350U true CN218310350U (en) | 2023-01-17 |
Family
ID=84838545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222443138.1U Active CN218310350U (en) | 2022-09-15 | 2022-09-15 | Punching device for forming thin-wall deep blind hole shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218310350U (en) |
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2022
- 2022-09-15 CN CN202222443138.1U patent/CN218310350U/en active Active
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