CN203495027U - Steel blade one-time rolling forming die - Google Patents
Steel blade one-time rolling forming die Download PDFInfo
- Publication number
- CN203495027U CN203495027U CN201320627546.0U CN201320627546U CN203495027U CN 203495027 U CN203495027 U CN 203495027U CN 201320627546 U CN201320627546 U CN 201320627546U CN 203495027 U CN203495027 U CN 203495027U
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- China
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- forming die
- blade
- moulding
- die
- counterdie
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- Expired - Fee Related
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Abstract
The utility model particularly relates to a steel blade one-time rolling forming die which solves the problems that an existing blade forming device wastes time and labor, blades can crack easily, and efficiency is low at operation time. The steel blade one-time rolling forming die comprises an upper forming die with the lower surface matched with the upper surface of a formed blade and a lower forming die with the upper surface matched with the lower surface of the formed blade. The upper forming die is formed by hinging a front upper forming die and a back upper forming die. An inner core matched with the inner surface of the formed blade is arranged between the upper forming die and the lower forming die. A lower die seat is fixed on the lower side of the lower forming die. A locating pin located at the front end of the lower forming die is fixed on the lower die seat. The steel blade one-time rolling forming die is reasonable and reliable in structural design, removes springback after thermocompression bonding for two times, effectively shortens the machining technology and cycles, improves labor intensity and efficiency, and has the advantages of being low in cost, simple in structure and convenient to machine. Moreover, the airfoil section of obtained blade blanks completely meet the requirements of designed theoretical molded lines.
Description
Technical field
The utility model relates to the mould of propeller fan building block, is specially press-moulding die of a kind of steel blade.
Background technology
Impeller is the parts of axial flow main fan most critical, and blade is most crucial part, and the degree-of-difficulty factor of its design, processing is maximum, requires the highest.Domestic axial flow main fan blade generally adopts casting and two kinds of processing modes of welding fabrication, in actual production process, can to the requirement of blade material, select different molding modes according to each mine coal seam gas.
At present, the traditional welding fabrication blade of domestic ventilation blower factory has than casting that processing technology is relatively simple, yield rate is high, defect is few, low cost and other advantages, thereby most producer all adopts the processing technology manufacture steel blade of welding blade and the moulding of sharf rivet welding.After ventilation blower factory steel production process of blade is all compressing separately by blade windward side and lee face again together with solder bond, in mine use procedure, find due to coal gas layer in impurity particle thing high-speed friction, at solder bond place, because welding quality causes blade cracking phenomena, often occur.
Summary of the invention
The utility model exists when solving existing blade forming device operation wastes time and energy, blade is easy to crack and the problem of inefficiency, provides a kind of steel blade a press-moulding die.
The utility model is to adopt following technical scheme to realize: press-moulding die of steel blade, comprise the moulding counterdie that shaping upper that lower surface coordinates with moulding blade upper surface and upper surface coordinate with moulding blade lower surface, shaping upper is by anterior shaping upper and rear portion shaping upper is hinged forms, between shaping upper and moulding counterdie, be provided with the inner core coordinating with moulding blade inner surface, moulding counterdie downside is fixed with counterdie die holder, is fixed with the alignment pin that is positioned at moulding counterdie front end on counterdie die holder.
Carry out steel blade when compressing, steel plate is carried out to pre-bending at normal temperatures, subsequently the curved plates after heating is put into moulding counterdie, and inner core is put into curved plates, on being pressed to after blade forming, shaping upper moves certain displacement, inner core is separately taken out because of elasticity in blade rear end, again shaping upper is pressed down, after subsequently rear portion shaping upper being rotated up, blade rear end is welded and obtained moulding blade, and while having overcome existing blade forming device operation, existence is wasted time and energy, blade is easy to crack and the problem of inefficiency.
The utility model reasonable in design is reliable, the theory shaped wire of the design of mould based on blade, after twice thermal compression welding, eliminated resilience, the aerofoil profile of the blade blank obtaining meets the theory shaped wire of design completely, processing technology and cycle have effectively been shortened, improve labour intensity and efficiency, there is cost feature low, simple in structure, easy to process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-moulding blade, 2-moulding counterdie, the anterior shaping upper of 3-, 4-rear portion shaping upper, 5-inner core, 6-counterdie die holder, 7-alignment pin, 8-rotating shaft, 9-bearing pin, 10-connecting rod, 11-handgrip.
The specific embodiment
Press-moulding die of steel blade, comprise the moulding counterdie 2 that shaping upper that lower surface coordinates with moulding blade 1 upper surface and upper surface coordinate with moulding blade 1 lower surface, shaping upper is by anterior shaping upper 3 and rear portion shaping upper 4 is hinged forms, between shaping upper and moulding counterdie 2, be provided with the inner core 5 coordinating with moulding blade 1 inner surface, moulding counterdie 2 downsides are fixed with counterdie die holder 6, are fixed with the alignment pin 7 that is positioned at moulding counterdie 2 front ends on counterdie die holder 6.
In specific implementation process, anterior shaping upper 3 tops are provided with rotating shaft 8, and the two ends, left and right of rear portion shaping upper 4 are fixed with bearing pin 9, are provided with the connecting rod 10 being enclosed within on both between rotating shaft 8 and bearing pin 9, and shaping upper 4 upper surfaces in rear portion are fixed with handgrip 11.
Need to rotate on rear portion shaping upper 4, hold handgrip 1 and upwards draw, rear portion shaping upper 4 can upwards rotate along rotating shaft 8.
Claims (1)
1. press-moulding die of a steel blade, it is characterized in that: comprise the moulding counterdie (2) that shaping upper that lower surface coordinates with moulding blade (1) upper surface and upper surface coordinate with moulding blade (1) lower surface, shaping upper is by anterior shaping upper (3) and hinged the forming of rear portion shaping upper (4), between shaping upper and moulding counterdie (2), be provided with the inner core (5) coordinating with moulding blade (1) inner surface, moulding counterdie (2) downside is fixed with counterdie die holder (6), on counterdie die holder (6), be fixed with the alignment pin (7) that is positioned at moulding counterdie (2) front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320627546.0U CN203495027U (en) | 2013-10-12 | 2013-10-12 | Steel blade one-time rolling forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320627546.0U CN203495027U (en) | 2013-10-12 | 2013-10-12 | Steel blade one-time rolling forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203495027U true CN203495027U (en) | 2014-03-26 |
Family
ID=50326034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320627546.0U Expired - Fee Related CN203495027U (en) | 2013-10-12 | 2013-10-12 | Steel blade one-time rolling forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203495027U (en) |
-
2013
- 2013-10-12 CN CN201320627546.0U patent/CN203495027U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20191012 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |