CN203565744U - Upper ejector for large hot die forging press die - Google Patents
Upper ejector for large hot die forging press die Download PDFInfo
- Publication number
- CN203565744U CN203565744U CN201320724235.6U CN201320724235U CN203565744U CN 203565744 U CN203565744 U CN 203565744U CN 201320724235 U CN201320724235 U CN 201320724235U CN 203565744 U CN203565744 U CN 203565744U
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- China
- Prior art keywords
- push rod
- press
- response agency
- ejector
- hydraulic cylinder
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- Expired - Lifetime
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- 238000005242 forging Methods 0.000 title claims abstract description 30
- 230000000694 effects Effects 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 23
- 238000003825 pressing Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000009497 press forging Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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Abstract
The utility model discloses an upper ejector, particularly relates to an upper ejector for a large hot die forging press die, and belongs to the technical field of forging and pressing equipment. The upper ejector for the large hot die forging press die is simple in structure, long in service life and stable in ejection effect. The upper ejector comprises an ejector rod and an ejector rod return mechanism, wherein the ejector rod is located in an upper die body cavity and coaxial with a press hydraulic cylinder return pin installed in a press upper die base, and the lower end of the ejector return mechanism is connected with the ejector rod. An ejector rod return mechanism installing cavity is formed below the press hydraulic return pin of the press upper die base, and the ejector rod return mechanism is installed in the ejector rod return mechanism installing cavity between the ejector rod and the press hydraulic cylinder return pin. In the ejection process, the press hydraulic rod return pin stretches into the ejector rod return mechanism installing cavity under the effect of an external hydraulic mechanism to push the ejector rod return mechanism to move downwards in the axial direction to eject a die forging part adhering into an upper die through the ejector rod.
Description
Technical field
The utility model relates to a kind of upper ejector, especially relates to a kind of upper ejector for large-scale hot die forging press mould, belongs to technical field of forging and pressing equipment.
Background technology
On mould, ejector is one of liftout special purpose device during die forging is produced, particularly for mould one of indispensable servicing unit especially for large-scale drop press.Because the forging part of majority with Reentrant Cavity can be bonded in patrix when forging, as do not taken out in time forging part, will reduce production efficiency and affect forging part performance.On traditional press die, liftout mode mainly adopts mechanical cam combined type or Pneumatic ejection device.Mainly there is following problem in mechanical cam modular appliance:
1, be that constantly friction causes cam wear, liftout precision is low, even can not realize liftout function;
2, be that these structure parts are many, complex structure, processing cost is high;
3, be that this structure belongs to combination unit, upper model cavity liftout part is comprised of employing bolt or interference fit die pad and push rod, and mold cavity coupling part is prone to undercapacity problem.
And Pneumatic ejection device is to promote push rod by gas to realize liftout.This structure is prone to that to unload gas or air compressor pressure not enough and cause production efficiency low.
Utility model content
Technical problem to be solved in the utility model is: the upper ejector for large-scale hot die forging press mould that a kind of simple in structure, long service life, liftout effect stability are provided.
For solving the problems of the technologies described above adopted technical scheme, be: for the upper ejector of large-scale hot die forging press mould, comprise the push rod that is arranged in mould body die cavity and the press hydraulic cylinder push back pin that is arranged on press upper bolster, described push rod is coaxial with described press hydraulic cylinder push back pin, also comprises the push rod response agency that lower end is connected with push rod; Below the press hydraulic cylinder push back pin of described press upper bolster, be provided with push rod response agency installation cavity, described push rod response agency is arranged in the push rod response agency installation cavity between push rod and press hydraulic cylinder push back pin; During liftout, described press hydraulic cylinder push back pin stretches in push rod response agency installation cavity under the effect of outside hydraulic mechanism, pushes push rod response agency and by push rod, the forging part being bonded in upper bolster is ejected downwards vertically.
Be further, described push rod response agency comprises push rod connector and elastic reset part, the lower end of described push rod connector is connected with the upper end of described push rod, described elastic reset part is socketed on described push rod connector, and described push rod connector is arranged in push rod response agency installation cavity by elastic reset part.
Further, described elastic reset part comprises and screws nut, back-moving spring and pad; The described upper end that screws nut and be screwed in push rod connector; Described pad is socketed in the middle and lower part of push rod connector; Described back-moving spring is socketed on the push rod connector screwing between nut and pad; The pad that is socketed in push rod connector middle and lower part passes through lower surface apical grafting on the bottom surface of described push rod response agency installation cavity.
Further, described elastic reset part also comprises pilot sleeve, in the middle and lower part of described push rod connector, is provided with positive stop lug boss, and described pilot sleeve is socketed in screwing on the push rod connector between nut and positive stop lug boss in back-moving spring.
The beneficial effects of the utility model are: for the defect existing in prior art, in conjunction with existing large-scale hot die forging press major part, all adopt the feature of high efficiency hydraulic system, the push rod response agency that the application is connected with push rod by a lower end is set, and below the press hydraulic cylinder push back pin of press upper bolster, a push rod response agency installation cavity is set, then described push rod is gone back to mechanism and be arranged in the push rod response agency installation cavity between push rod and press hydraulic cylinder push back pin.Like this, during liftout, described press hydraulic cylinder push back pin stretches in push rod response agency installation cavity under the effect of outside hydraulic mechanism, pushes push rod response agency and by push rod, the forging part being bonded in press patrix is ejected downwards vertically.Due to push rod only when the liftout just from stretch out and top pressing mold forging in mould body die cavity, so push rod just can not rub with press forging, thereby can extend service life of upper ejector; Because push rod does not have fretting wear, also can guarantee for a long time liftout effect stability.Because press hydraulic cylinder push back pin only just stretches out and push rod apical grafting when the liftout, just do not contact with push rod during liftout, so can also effectively prevent that mold hot from passing to hydraulic cylinder, prevented oil overheating in hydraulic cylinder and affected service efficiency., because described upper ejector only consists of with the push rod response agency being connected with push rod lower end push rod, so also can effectively simplify the structure of upper ejector, reduce production costs meanwhile, be convenient to safeguard and use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model for the upper ejector of large-scale hot die forging press mould;
Fig. 2 is the structural representation of the push rod connector that related to of the utility model.
In figure, be labeled as: go up mould body die cavity 1, push rod 2, press upper bolster 3, press hydraulic cylinder push back pin 4, push rod response agency 5, push rod response agency installation cavity 6, push rod connector 7, elastic reset part 8, screw nut 9, back-moving spring 10, pad 11, pilot sleeve 12, positive stop lug boss 13.
The specific embodiment
A kind of simple in structure, the long service life that provides of the utility model, the upper ejector for large-scale hot die forging press mould of liftout effect stability as shown in Figure 1 and Figure 2.Described upper ejector comprises the push rod 2 that is arranged in mould body die cavity 1 and the press hydraulic cylinder push back pin 4 that is arranged on press upper bolster 3, described push rod 2 is coaxial with described press hydraulic cylinder push back pin 4, also comprises the push rod response agency 5 that lower end is connected with push rod 2; Below the press hydraulic cylinder push back pin 4 of described press upper bolster 3, be provided with push rod response agency installation cavity 6, described push rod response agency 5 is arranged in the push rod response agency installation cavity 6 between push rod 2 and press hydraulic cylinder push back pin 4; During liftout, described press hydraulic cylinder push back pin 4 stretches in push rod response agency installation cavity 6 under the effect of outside hydraulic mechanism, pushes push rod response agency 5 and by push rod 2, the forging part being bonded in upper bolster 3 is ejected downwards vertically.Such scheme is for the defect existing in prior art, in conjunction with existing large-scale hot die forging press major part, all adopt the feature of high efficiency hydraulic system, the push rod response agency 5 being connected with push rod 2 by a lower end is set, and below the press hydraulic cylinder push back pin 4 of press upper bolster 3, a push rod response agency installation cavity 6 is set, then described push rod response agency 5 is arranged in the push rod response agency installation cavity 6 between push rod 2 and press hydraulic cylinder push back pin 4.Like this, during liftout, described press hydraulic cylinder push back pin 4 stretches in push rod response agency installation cavity 6 under the effect of outside hydraulic mechanism, pushes push rod response agency 5 and by push rod 2, the forging part being bonded in press patrix 3 is ejected downwards vertically.Due to 2 of push rods when the liftout just from stretch out and top pressing mold forging in mould body die cavity 1, so push rod 2 just can not rub with press forging, thereby can extend service life of upper ejector; Because push rod 2 does not have fretting wear, also can guarantee for a long time liftout effect stability.Because press hydraulic cylinder push back pin 4 only just stretches out and push rod 2 apical graftings when the liftout, just do not contact with push rod 2 during liftout, so can also effectively prevent that mold hot from passing to hydraulic cylinder, prevented oil overheating in hydraulic cylinder and affected service efficiency., because described upper ejector only consists of with the push rod response agency 5 being connected with push rod 2 lower ends push rod 2, so also can effectively simplify the structure of upper ejector, reduce production costs meanwhile, be convenient to safeguard and use.
In above-mentioned embodiment, in order to simplify the structure that pushes push rod response agency 5, described push rod response agency 5 comprises push rod connector 7 and elastic reset part 8, the lower end of described push rod connector 7 is connected with the upper end of push rod 2, described elastic reset part 8 is socketed on push rod connector 7, and described push rod connector 7 is arranged in push rod response agency installation cavity 6 by elastic reset part 8.Further for the ease of push rod response agency 5 being installed in push rod response agency installation cavity 6, described elastic reset part 8 comprises and screws nut 9, back-moving spring 10 and pad 11; The described upper end that screws nut 9 and be screwed in push rod connector 7; Described pad 11 is socketed in the middle and lower part of push rod connector 7; Described back-moving spring 10 is socketed on the push rod connector 7 screwing between nut 9 and pad 11; The pad 11 that is socketed in push rod connector 7 middle and lower parts passes through lower surface apical grafting on the bottom surface of described push rod response agency installation cavity 6.In above-mentioned embodiment; owing to screwing nut 9, are the upper ends that are screwed in push rod connector 7; like this; upper end at push rod connector 7 just has the screw thread that spins; in order to protect the described screw thread can be not damaged at the telescopic process of back-moving spring 10; described elastic reset part also 8 comprises pilot sleeve 12, in the middle and lower part of described push rod connector 7, is provided with positive stop lug boss 13, and described pilot sleeve 12 is socketed in screwing on the push rod connector 7 between nut 9 and positive stop lug boss 13 in back-moving spring 10.Meanwhile, pilot sleeve 12 is socketed in screwing on the push rod connector 7 between nut 9 and positive stop lug boss 13 in back-moving spring 10 and cannot strengthens the rigidity of back-moving spring 10 with compression and the backhaul of guide springs.
Claims (4)
1. for the upper ejector of large-scale hot die forging press mould, comprise the push rod (2) that is arranged in mould body die cavity (1) and the press hydraulic cylinder push back pin (4) that is arranged on press upper bolster (3), described push rod (2) is coaxial with described press hydraulic cylinder push back pin (4), it is characterized in that: also comprise the push rod response agency (5) that lower end is connected with push rod (2); In the below of the press hydraulic cylinder push back pin (4) of described press upper bolster (3), be provided with push rod response agency installation cavity (6), described push rod response agency (5) is arranged in the push rod response agency installation cavity (6) between push rod (2) and press hydraulic cylinder push back pin (4); During liftout, described press hydraulic cylinder push back pin (4) stretches in push rod response agency installation cavity (6) under the effect of outside hydraulic mechanism, pushes push rod response agency (5) and by push rod (2), the forging part being bonded in upper bolster (3) is ejected downwards vertically.
2. the upper ejector for large-scale hot die forging press mould according to claim 1, it is characterized in that: described push rod response agency (5) comprises push rod connector (7) and elastic reset part (8), the lower end of described push rod connector (7) is connected with the upper end of described push rod (2), it is upper that described elastic reset part (8) is socketed in described push rod connector (7), and described push rod connector (7) is arranged in push rod response agency installation cavity (6) by elastic reset part (8).
3. the upper ejector for large-scale hot die forging press mould according to claim 2, is characterized in that: described elastic reset part (8) comprises and screws nut (9), back-moving spring (10) and pad (11); The described upper end that screws nut (9) and be screwed in push rod connector (7); Described pad (11) is socketed in the middle and lower part of push rod connector (7); Described back-moving spring (10) is socketed on the push rod connector (7) screwing between nut (9) and pad (11); The pad (11) that is socketed in push rod connector (7) middle and lower part passes through lower surface apical grafting on the bottom surface of described push rod response agency installation cavity (6).
4. the upper ejector for large-scale hot die forging press mould according to claim 3, it is characterized in that: described elastic reset part also (8) comprises pilot sleeve (12), in the middle and lower part of described push rod connector (7), be provided with positive stop lug boss (13), described pilot sleeve (12) is socketed in screwing on the push rod connector (7) between nut (9) and positive stop lug boss (13) in back-moving spring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724235.6U CN203565744U (en) | 2013-11-15 | 2013-11-15 | Upper ejector for large hot die forging press die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724235.6U CN203565744U (en) | 2013-11-15 | 2013-11-15 | Upper ejector for large hot die forging press die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203565744U true CN203565744U (en) | 2014-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320724235.6U Expired - Lifetime CN203565744U (en) | 2013-11-15 | 2013-11-15 | Upper ejector for large hot die forging press die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203565744U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109772996A (en) * | 2019-03-29 | 2019-05-21 | 马鞍山创诚中小企业服务中心有限公司 | A kind of punch components |
| CN112264567A (en) * | 2020-09-15 | 2021-01-26 | 宝鸡石油机械有限责任公司 | Die forging method for traveling block lifting ring for petroleum drilling machine lifting system |
-
2013
- 2013-11-15 CN CN201320724235.6U patent/CN203565744U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109772996A (en) * | 2019-03-29 | 2019-05-21 | 马鞍山创诚中小企业服务中心有限公司 | A kind of punch components |
| CN112264567A (en) * | 2020-09-15 | 2021-01-26 | 宝鸡石油机械有限责任公司 | Die forging method for traveling block lifting ring for petroleum drilling machine lifting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Mo Anjun Inventor after: Chen Jinke Inventor after: Xie Jing Inventor before: Mo Anjun Inventor before: Chen Jinke |
|
| COR | Change of bibliographic data | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |
|
| CX01 | Expiry of patent term |