CN101015849A - Tyre die forging-demoulding device - Google Patents
Tyre die forging-demoulding device Download PDFInfo
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- CN101015849A CN101015849A CN 200710019857 CN200710019857A CN101015849A CN 101015849 A CN101015849 A CN 101015849A CN 200710019857 CN200710019857 CN 200710019857 CN 200710019857 A CN200710019857 A CN 200710019857A CN 101015849 A CN101015849 A CN 101015849A
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Abstract
A blank die forging mould in/out device comprises a die forging main cylinder, an upper mould table, and an upper mould base which are serially connected into a concentric post. The invention is characterized in that the main cylinder, the upper mould table, and the mould base corn are arranged with a chamber in same diameter, the chamber is arranged with a demould hydraulic cylinder and a demould cylinder piston connected with a spindle, the lifting rod is sliding mounted in a through hole of the mould base corn relative to a press plate at the lower end of the spindle, the lifting sheath is sliding mounted in an annular limiting groove of outer mould and inner mould, relative to the lifting rod, when demoulds, the demould cylinder piston downwards presses the lifting rod and lifts out the sheath, to separate the work-piece and upper mould, and the lifting sheath separates the work-piece and the upper mould. The invention has the advantages in high effect, high speed and high reliability, with simple structure and non-lubricant pollution.
Description
Technical field
The invention belongs to metal forming machinery, relate in particular to the hydraulic pressure loose tool and forge stripper apparatus.
Background technology
The patrix of large-scale loose tooling forging is connected in turn the below of master cylinder by upper bolster, patrix platform.In forging process, reasons such as, blank heating complex-shaped owing to surface of the work, behind the forging forming between workpiece and the loose tool frictional force big, workpiece and patrix adhesion often take place, be difficult for breaking away from, the demoulding has become the difficult problem of influence production.Current solution release problems is to set about from the frictional force that reduces as far as possible between workpiece and the patrix, relies on the workpiece deadweight to fall and the demoulding.The employing that has in forging process by spraying equipment to the mould surface spraying lubricant, reduce the frictional force between workpiece and the patrix; The pattern draft of taking to increase mould that has, the frictional force of minimizing workpiece and last intermode vertical direction is in order to the demoulding.Its former defective is that the spraying lubricant had both needed spraying equipment and lubricant, has increased processing cost, pollutes the environment again and increase to administer pollution charges usefulness; Its latter's defective is to increase pattern draft, has both increased the blank inventory, has also increased the cutting output of reprocessing, what is more important both can not guarantee the absolutely demoulding, has reduced working (machining) efficiency, also can cause workpiece to scrap, mould damages (inefficacy), and influence is produced and carried out smoothly.
Summary of the invention
In order to overcome the deficiency that prior art exists, the purpose of this invention is to provide a kind of tyre die forging-demoulding device, during the demoulding workpiece is applied top-down pushing force, guarantee that workpiece successfully splits away off from patrix, production is carried out smoothly, the pollution of also having avoided the spraying lubricant to cause, or reduce the blank inventory.
A kind of tyre die forging-demoulding device, the master cylinder, patrix platform, the upper bolster that comprise forging press are in turn connected into concentric cylinders, be characterized in intracardiac establishing in master cylinder, patrix platform, the die holder core with the footpath inner chamber, establish liquid parting cylinder pressure and stripping tank plunger in the inner chamber, stripping tank plunger lower end is connected with mandrel, the push rod cunning is contained in the through hole that the die holder core establishes, and is corresponding with the pressing plate that is located at the mandrel lower end, moves both vertically up and down to guarantee push rod; The ejector sleeve cunning is contained in the default annular spacing groove of external mold and internal mold, and is corresponding with push rod.
The present invention further improves, and establish with the footpath slotted eye at master cylinder, patrix platform, die holder core center, connects into the inner chamber that liquid parting cylinder pressure and plunger thereof are set, and liquid parting cylinder pressure and plunger thereof place inner chamber, are fixed on the master cylinder by the stripping tank flange; Master cylinder also is provided with upper oil hole, following oilhole, and oilhole one end is communicated with the liquid parting cylinder pressure, and end is connected with oil nozzle in addition, after upper oil hole or the following oilhole oil-feed, promotes the stripping tank plunger upward and downward.
Establish the die holder core in the upper bolster, establish groove on the die holder core, side is established inverted mounting boss, matches with the boss of establishing in the upper bolster, and the die holder core places in the upper bolster, and by the supporting of the boss of upper bolster, upper bolster is fixedly on the patrix platform; The die holder core is established the through hole of a pair of sliding dress push rod at least, and through hole is established copper sheathing in two ends up and down, and the push rod cunning is contained in through hole and the copper sheathing, drops on the ejector sleeve.If copper sheathing is to alleviate the wearing and tearing of push rod and die holder core through hole.Establish the annular stop boss on the push rod,, also be convenient to the dismounting of mould emptier to limit it to down stroke.
Patrix is made of external mold and internal mold, and external mold is provided with the fixedly annular boss of internal mold, and internal mold embeds in the external mold, and by outer die support, external mold is fixed on the patrix platform; External mold also is provided with the annular boss of sliding dress ejector sleeve, with internal mold looping stopper slot to carry out spacing to ejector sleeve.
Ejector sleeve is an annular solid, and sliding being loaded in the annular spacing groove adopted annular solid, and workpiece is stressed evenly during the demoulding.
Before the forging and pressing processing, the stripping tank plunger is in the cylinder body upper end, and after master cylinder was depressed, blank produced distortion, ejector sleeve upwards can be pushed into the top of annular spacing groove; After workpiece compression moulding, when carrying on the master cylinder, provide the signal that the stripping tank plunger moves downward, the upper oil hole oil-feed promotes the stripping tank plunger and moves downward, and depresses mandrel, push rod and ejector sleeve, and workpiece is exerted pressure, and breaks away from fully until workpiece and patrix.Because only overcome the frictional force between workpiece and the patrix during demoulding, consumption of power is little.
Compared with prior art, its advantage is that this device stripping result is good, fast, reliably, guarantees the absolutely demoulding, has improved the efficient of forging and pressing processing; This apparatus structure is simple, reasonable, easy-maintaining; Avoided lubricant contamination, die life prolongs, and mould consumption reduces, and improves lumber recovery, and processing charges reduces greatly.
Description of drawings
The invention will be further described for the contrast accompanying drawing below.
Fig. 1 is the tyre die forging-demoulding device structural representation.
The specific embodiment
By as can be seen embodiment illustrated in fig. 1, the master cylinder 1 and the patrix platform 6 of forging press, upper bolster 9 is in turn connected into concentric cylinders, master cylinder 1, patrix platform 6 and die holder core 8 centers are provided with one heart with the footpath inner chamber, liquid parting cylinder pressure and stripping tank plunger 4 are set in the inner chamber, stripping tank plunger 4 times is connected with mandrel 5, push rod 13 is sliding to be contained in the through hole that die holder core 8 establishes, corresponding with the pressing plate 14 that is located at mandrel 5 lower ends, push rod 13 moves up and down in the through hole of die holder core 8, ejector sleeve 11 is sliding be contained in the default annular spacing groove of external mold 10 and internal mold 12 and push rod 13 corresponding, push rod 13 promotes ejector sleeve, moves up and down in annular spacing groove.
The screw of half opening slotted eye, assembling stripping tank flange 16 is established at master cylinder 1 center, sidewall is established upper oil hole 2, following oilhole 3, patrix platform 6 is established with the footpath through hole, after master cylinder 1, patrix platform 6, die holder core 8 connect, form the inner chamber of fixing liquid parting cylinder pressure and plunger 4 thereof, liquid parting cylinder pressure and plunger 4 thereof are located in the inner chamber, are fixed on the master cylinder 1 by stripping tank flange 16.Upper oil hole 2, following oilhole 3 lead to the liquid parting cylinder pressure, and other holds external oil nozzle, upper oil hole 2 oil-feeds, and following oilhole 3 oil extractions promote stripping tank plunger 4 and move downward, following oilhole 3 oil-feeds, upper oil hole 2 oil extractions are carried on the stripping tank plunger 4.
Be fixed on the stripping tank plunger 4 by bayonet socket flange 15 on the mandrel 5, the lower end is connected with pressing plate 14, can adopt to be threaded, and also available bearing pin connects.Adopt bayonet socket flange 15 fixing, can make mandrel 5 keep vertical, also can make pressing plate 14 stress balances of both sides, evenly.
Establish die holder core 8 in the upper bolster 9.Groove is established on die holder core 8 tops, and is directly same with the slotted eye that master cylinder 1 patrix platform 6 is established.Die holder core 8 sides are established inverted mounting boss, and are corresponding with the boss of establishing in the upper bolster 9, and die holder core 8 places upper bolster 9 interior boss supportings by upper bolster, is fixed in the upper bolster 9.
Die holder core 9 is established the through hole of a pair of sliding dress push rod 13 at least, and how many through holes is decided on the size of required knockout press.Through hole is provided with copper sheathing 7 in both ends up and down, to reduce the wearing and tearing of push rod 13 and die holder core 8 through holes.
Push rod 13 upper ends have the annular stop boss, and touch the through hole that a core 8 establishes and cooperate, and push rod 13 is limited to down stroke, also are convenient to mould emptier and remove and install.
Patrix is made of external mold 10 and internal mold 12, and external mold 10 is provided with the fixedly annular boss of internal mold 12, and internal mold 12 embeds in the external mold 10, by the boss supporting of external mold 10.External mold 10 also is provided with the boss of annular of supporting ejector sleeve 11, and ejector sleeve 11 places in the annular spacing groove that is made of default annular boss of external mold 10 and internal mold 12, and ejector sleeve 11 can move up and down in stopper slot, transmits pressure.Internal mold 12 also is provided with through hole, and is corresponding with the through hole that die holder core 8 is established.The through hole that push rod 13 is established by die holder core 8 and internal mold 12 drops on the ejector sleeve 11, transmits pressure.Ejector sleeve 11 is an annular solid, so that the workpiece demoulding is stressed evenly.
The present invention is not limited to the structure of embodiment shown in Figure 1, and the pushing workpiece can also have other malformation, and for example, internal mold 12 directly is connected with mandrel 5, and mandrel 5 is connected on the stripping tank plunger 4, and internal mold 12 pushing workpiece break away from workpiece and patrix during the demoulding.
The demoulding of the present invention is to carry out work by following mode: normality bottom knockout cylinder plug 4 is in demoulding hydraulic cylinder body upper end.After the forging and pressing processing beginning, master cylinder 1 is depressed, blank deformation, upwards pushing of ejector sleeve 11, the top of straight apical ring shape stopper slot; Behind the Workpiece shaping, carry on the master cylinder 1, stripping tank obtains demoulding signal, and upper oil hole 2 oil-feeds promote stripping tank plunger 4 and move downward, and mandrel 5 pressurizeds transmit pressure by pressing plate 14, knock-pin 13, and ejector sleeve 11 pushing workpiece break away from workpiece and patrix.After the demoulding, following oilhole 3 oil-feeds, carry on the stripping tank plunger 4, carry on the mandrel 5, knock-pin 13 is sagging naturally to be dropped on the ejector sleeve 11, and ejector sleeve 11 drops on the annular boss of external mold 10, because pushing force only overcomes the frictional force between workpiece and the mould, active force is very little, and as 90MN wheel forging press, stripping tank pressure only needs the hydraulic cylinder of 0.2MN ability.
Claims (7)
1, tyre die forging-demoulding device, comprise by forging press master cylinder (1), patrix platform (6), upper bolster (9) is in turn connected into concentric cylinders, it is characterized in that master cylinder (1), patrix platform (6), intracardiac liquid parting cylinder pressure and the liquid parting cylinder plug (4) established in the die holder core (9), this liquid parting cylinder plug (4) is connected with mandrel (5) down, push rod (13) is sliding to be contained in the through hole that die holder core (8) establishes, corresponding with the pressing plate (14) that is located at mandrel (5) lower end, ejector sleeve (11) is sliding to be contained in external mold (10) and the default annular spacing groove of internal mold (12), corresponding with push rod (13).
2, tyre die forging-demoulding device according to claim 1, it is characterized in that master cylinder (1), patrix platform (6), die holder core (8) center establish with one heart with the footpath slotted eye, constitute the inner chamber that demoulding hydraulic cylinder body and stripping tank plunger (4) are set, liquid parting cylinder pressure and plunger thereof (4) place inner chamber, are fixed on the master cylinder (1) by stripping tank flange (16); Master cylinder (1) side is established upper oil hole (2), following oilhole (3), and oilhole (2), (3) one ends are communicated with the liquid parting cylinder pressure, and end is connected with oil nozzle in addition.
3, tyre die forging-demoulding device according to claim 1 is characterized in that mandrel (5) upper end is fixed on the stripping tank plunger (4) by bayonet socket flange (15), and lower end and pressing plate (14) are by being threaded.
4, tyre die forging-demoulding device according to claim 1, it is characterized in that establishing in the upper bolster (9) die holder core (8), the die holder core is established groove on (8), side is established inverted mounting boss, corresponding with the boss of establishing in the upper bolster (9), die holder core (8) places in the upper bolster (9), and the boss of being established by upper bolster supports; Die holder core (8) is established the through hole of a pair of sliding dress push rod (13) at least, and through hole is provided with copper sheathing (7) in two ends up and down, and push rod (13) is sliding to be contained in through hole and the copper sheathing (7), drops on the ejector sleeve (11).
5, tyre die forging-demoulding device according to claim 4 is characterized in that push rod (13) upper end has the annular stop boss, and touches the through hole that a core (8) establishes and matches.
6, tyre die forging-demoulding device according to claim 1, it is characterized in that patrix is made of external mold (10) and internal mold (12), external mold (10) is provided with the fixedly annular boss of internal mold (12), internal mold (12) embeds in the external mold (10), support by external mold (10), external mold (10) also is provided with the limit shape boss of sliding dress ejector sleeve (11), and ejector sleeve (11) places in the annular spacing groove that is made of default annular boss of external mold (10) and internal mold (12).
7, tyre die forging-demoulding device according to claim 1 is characterized in that ejector sleeve (11) is an annular solid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100198578A CN101015849B (en) | 2007-02-01 | 2007-02-01 | Tyre die forging-demoulding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100198578A CN101015849B (en) | 2007-02-01 | 2007-02-01 | Tyre die forging-demoulding device |
Publications (2)
| Publication Number | Publication Date |
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| CN101015849A true CN101015849A (en) | 2007-08-15 |
| CN101015849B CN101015849B (en) | 2011-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100198578A Active CN101015849B (en) | 2007-02-01 | 2007-02-01 | Tyre die forging-demoulding device |
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| CN (1) | CN101015849B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890470A (en) * | 2010-08-12 | 2010-11-24 | 中信戴卡轮毂制造股份有限公司 | Lower die ejector of forging die |
| CN103697014A (en) * | 2013-12-17 | 2014-04-02 | 马钢(集团)控股有限公司 | Demolding cylinder of wheel oil press |
| CN106404605A (en) * | 2016-11-18 | 2017-02-15 | 湖南大学 | Reusable optical glass viscosity measuring tool |
| CN108856624A (en) * | 2018-07-17 | 2018-11-23 | 日照德信机械制造有限公司 | A kind of die forging hot forging ejection cylinder |
| CN112091149A (en) * | 2020-07-23 | 2020-12-18 | 武汉重工铸锻有限责任公司 | Lever material ejecting device of hot die forging press |
| 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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5659555A (en) * | 1979-10-18 | 1981-05-23 | Komatsu Ltd | Production of joint |
| CN2154137Y (en) * | 1991-08-21 | 1994-01-26 | 河南省安阳锻压设备厂 | Multi-position automatic press forging machine |
| US5299444A (en) * | 1991-09-04 | 1994-04-05 | Toyota Jidosha Kabushiki Kaisha | Hydraulic cushioning system for press, having hydraulic power supply including means for adjusting initial pressure to be applied to pressure-pin cylinders |
| CN1724186A (en) * | 2005-05-16 | 2006-01-25 | 李之海 | Railway type automatic open-close forging mould |
| CN100382914C (en) * | 2006-06-15 | 2008-04-23 | 北京科技大学 | Equipment for high efficiency drop-forging forming precision parts made of non-crystalline alloy |
| CN200998761Y (en) * | 2007-02-01 | 2008-01-02 | 马鞍山钢铁股份有限公司 | Caul forging up stripping apparatus |
-
2007
- 2007-02-01 CN CN2007100198578A patent/CN101015849B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890470A (en) * | 2010-08-12 | 2010-11-24 | 中信戴卡轮毂制造股份有限公司 | Lower die ejector of forging die |
| CN103697014A (en) * | 2013-12-17 | 2014-04-02 | 马钢(集团)控股有限公司 | Demolding cylinder of wheel oil press |
| CN103697014B (en) * | 2013-12-17 | 2016-03-23 | 马钢(集团)控股有限公司 | Wheel oil hydraulic press stripping tank |
| CN106404605A (en) * | 2016-11-18 | 2017-02-15 | 湖南大学 | Reusable optical glass viscosity measuring tool |
| CN108856624A (en) * | 2018-07-17 | 2018-11-23 | 日照德信机械制造有限公司 | A kind of die forging hot forging ejection cylinder |
| CN112091149A (en) * | 2020-07-23 | 2020-12-18 | 武汉重工铸锻有限责任公司 | Lever material ejecting device of hot die forging press |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101015849B (en) | 2011-06-15 |
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