CN102744347A - High-temperature forge piece ejecting device - Google Patents
High-temperature forge piece ejecting device Download PDFInfo
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- CN102744347A CN102744347A CN2012102463475A CN201210246347A CN102744347A CN 102744347 A CN102744347 A CN 102744347A CN 2012102463475 A CN2012102463475 A CN 2012102463475A CN 201210246347 A CN201210246347 A CN 201210246347A CN 102744347 A CN102744347 A CN 102744347A
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- push rod
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- ejecting
- circular hole
- round hole
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Abstract
The invention relates to a high-temperature forge piece ejecting device. An ejecting round hole is arranged on a die, an ejector rod is inserted in the ejecting round hole from the bottom of the ejecting round hole, a fan-shaped material flowing groove is arranged on the upper portion of the ejecting round hole on the die, and the top of the ejector rod is lower than the bottom of the fan-shaped material flowing groove. The fan-shaped material flowing groove is provided with a horn-shaped opening outwards around the ejecting round hole. The top of the ejector rod is lower than the bottom of the fan-shaped material flowing groove by 3-5mm. A fit clearance between the ejector rod and the ejecting round hole is 0.5mm-1.5mm. The high-temperature forge piece ejecting device can effectively avoid the problem that burrs generated by flash for high-temperature metal are plugged in the clearance between the ejector rod and the ejecting round hole, and access of the ejector rod is not affected. Besides, the high-temperature forge piece ejecting device is reasonable in structure, simple in manufacture, convenient to operate, reliable in use and long in service life, saves cost, is used for ejecting out high-temperature forge pieces from the inside of a cavity of the die, and is applicable to efficiently running on an automatic production line.
Description
Technical field
The present invention relates to a kind of high warm forging processing unit (plant), specifically a kind of high warm forging liftout attachment.
Background technology
We know, forge in the line production process at the automation forcing press, and the workpiece of having forged need eject in mold cavity, is taken away by robot then.The method of generally taking at present be on mould processing several eject circular hole, again from following insertion push rod, push rod with eject circular hole strict fit clearance and level arranged, accomplish and forge the back and transmit power by forcing press push rod is ejected together with forging.There are a lot of shortcomings in this device, and the processing cost that the first ejects circular hole and push rod is too big.Eject normally machine-shaping on very hard alloy wlding of circular hole, the hole depth and the margin of tolerance are little only in 0.1mm; The material of push rod also requires under hot conditions wear-resistant and not yielding.All harsh conditions have caused high processing charges and long the making duration that ejects circular hole, push rod.Its two be push rod and high-temperature metal Long contact time very the rewind down electric mill decrease, and huge forging force is easy to metallic bur power is filled in push rod and ejected in the gap of circular hole, directly the push rod bending is stuck in when serious to eject in the circular hole and can not pass in and out, and causes stopping production.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that overcomes above-mentioned prior art, provides a kind of rational in infrastructure, makes simply, and is easy to operate, uses reliably, saves cost, and the life-span is long, is suitable for the high warm forging liftout attachment of high-efficiency automatic production line.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of high warm forging liftout attachment; It is provided with one and ejects circular hole on mould; Eject in the circular hole from following insertion one push rod; It is characterized in that: eject circular hole top on the said mould and be provided with a fan-shaped chute, the position on said push rod top is lower than fan-shaped chute bottom.
Fan-shaped chute according to the invention is to be that a trumpet-shaped openning is left at the center outward to eject circular hole; The groove of said fan-shaped chute is 2～3mm along chamfer radius R; Groove depth is 5～10mm, and trench bottom chamfer radius R is 5～6mm, and groove is 90 °～120 ° along fan-shaped angle.
The position on push rod according to the invention top is lower than fan-shaped chute bottom 3-5mm.The top of push rod is lower than and ejects circular hole upper surface 3-5mm in other words.Push rod adopts the local end hardening that ejects after the 45 steel roughing.
Push rod according to the invention is 0.5mm-1.5mm with the fit clearance that ejects circular hole.
The present invention adopts said structure, and chute plays storage or guiding excess metal overlap mobilization, and the burr that can effectively avoid producing in the forging process is filled in push rod and ejected in the circular hole gap, can not block the push rod turnover.Shorten push rod length, avoided push rod in forging process, to contact with high-temperature metal for a long time, only brought into play due effect ejecting moment.Said push rod is 0.5mm-1.5mm with the fit clearance that ejects circular hole, and this structure has significantly reduced the wearing and tearing of push rod, has thoroughly solved burr and has blocked the push rod problem.Reduce resistance, guarantee push rod turnover smoothly in ejecting circular hole, make like this to become the fine finishining that push rod is original simple roughing and just can satisfy instructions for use, saved processing charges greatly.Against existing technologies; The present invention can effectively avoid high-temperature metal overlap generation burr to fill in push rod and eject in the circular hole gap; Be unlikely to block the push rod turnover; In use push rod with eject the circular hole degree of wear and how can not have influence on ejecting smoothly of forging, and push rod, eject circular hole, chute requirement on machining accuracy low.It is rational in infrastructure, makes simply, and is easy to operate, uses reliably, saves cost, and the life-span is long, and it is used in mold cavity, ejecting high warm forging, is suitable for the high-efficiency automatic production line.
Description of drawings
Below in conjunction with accompanying drawing the present invention is done further description.
Fig. 1 is the schematic top plan view that the present invention forms structure.
Fig. 2 is the horizontal cross-sectional schematic of the present invention.
Fig. 3 is the vertical cross-sectional schematic of the present invention.
1. fan-shaped chutes among the figure, 2. the high-temperature metal overlap 3. ejects circular hole, 4. mould, 5. push rod.
The specific embodiment
From Fig. 1, Fig. 2, Fig. 3, can find out, a kind of high warm forging liftout attachment, it is provided with one and ejects circular hole 3 on mould 4, eject in the circular hole 3 from following insertion one push rod 5.Eject circular hole 3 tops on the said mould 4 and be provided with a fan-shaped chute 1.Said fan-shaped chute 1 is to be that a trumpet-shaped openning is left at the center outward to eject circular hole 3, and said fan-shaped chute parameter comprises that groove is along chamfering, groove depth, trench bottom chamfering and groove along fan-shaped angle.The groove of fan-shaped chute is 2～3mm along chamfer radius R, and groove depth is 5～10mm, and trench bottom chamfer radius R is 5～6mm, and groove is 90 °～120 ° along fan-shaped angle.Specifically: groove is meant the upper surface contour edge chamfering of opening fan groove along chamfering; This position is mainly played guiding high-temperature metal overlap and is moved towards effect; Usually groove is 2～3mm along chamfer radius R; This dimensional structure can make metal get in the chute with the shape of smoothing regulation, and the edge blocks the proper flow of high-temperature metal just as blade if chamfering is too little; If chamfering too greatly then eject circular hole and appear horn-like; So just strengthened push rod and the gap that ejects circular hole, high-temperature metal is easy to take advantage of the occasion to get into to form in the gap block so, occurs the overlap of badness in a word; It is inhomogeneous to cause each push rod to eject effect, influences the quality of forging.Groove depth is meant the degree of depth of horn-like opening; Mainly work the unnecessary high-temperature metal overlap effect of holding, because the overlap of the big more generation of forging is many more, so groove depth is 5～10mm usually; 5mm is fit to produce the middle-size and small-size forging below the 200kg deeply, and the large forgings that surpasses 300kg is deepened to 10mm as far as possible.The trench bottom chamfering is meant the bottom edge chamfering of fan groove; Being designed to trench bottom chamfer radius R is 5～6mm; Main rising reduces the metal flow drag effect, prevents that the high-temperature metal overlap from filling in push rod and ejecting in the circular hole gap, also is convenient to process in cutting tool simultaneously.The fan-shaped angle in groove edge is meant the angle of two side straight flanges of fan-shaped opening, mainly is further to reduce the metal flow resistance, can hold more high-temperature metal overlap; Be equivalent to provide dual fail-safe; Groove is 90 °～120 ° along fan-shaped angle, and angle forms bottleneck during less than 90 ° easily, obviously is unfavorable for flowing and storage of metal; Angle during greater than 120 ° area occupied too big, have influence on other position of mould easily and play a role.Follow above principle, the resistance that high-temperature metal receives when flowing is very little, and the slick and sly rule of shape, can not be squeezed in the push rod and interporal lacuna that narrow and small burr fills in, and has thoroughly solved the drawback of original state.
The position on push rod according to the invention 5 tops is lower than fan-shaped chute 1 bottom.The position on said push rod top is lower than fan-shaped chute bottom 3-5mm.The top of push rod is lower than and ejects circular hole upper surface 3-5mm in other words.Push rod adopts the local end hardening that ejects after the 45 steel roughing.The present invention has shortened push rod length, is usually designed to be lower than 3-5mm position, chute bottom, and be that the discord high-temperature metal is contacted in forging process, only bring into play due effect in the moment that ejects.Therefore the end that ejects that quenches is difficult for annealing, has also just significantly reduced the wearing and tearing of push rod, and is original more than 10 times through using the one cover continuous reusable life-span of push rod of proof to extend to.
Push rod according to the invention is 0.5mm-1.5mm with the fit clearance that ejects circular hole.Be lower than 0.5mm if fit clearance is too for a short time, be easy to cause foreign body obstructions such as oxide skin, be unfavorable for push rod turnover smoothly uniformly; If fit clearance surpasses 1.5mm too greatly, push rod is the motion of over-tilting shape, and block the other position of lower limb that is often ejected circular hole, directly pushes up askew scrapping.Improved scientific and reasonable fit clearance, eliminated the push rod bending basically and scrapped the stopping production accident that causes, and made original fine finishining become simple roughing just can to satisfy use easily, processing charges with make save on the duration not little.
Push rod of the present invention adopts the local end hardening that ejects after the 45 steel roughing.Improve the push rod heat treatment method, alternative using cheap materials.The present invention needn't be too high to the performance requirement of push rod, and the overall performance requirement to push rod in the prior art is very high, at first will be with push rod roughing; And reserve enough allowance; Integral quenching is carried out fine finishining more then, because the bending deformation quantity that quenching causes is very big, so the push rod overall performance after the fine finishining is also undesirable; It is too high to add the back push rod hardness of quenching, and it is particularly difficult that fine finishining seems.The present invention only need with after the push rod roughing local eject end hardening just can, can increase the hardness of corresponding site, can not occur bending and deformation again.Originally adopt high temperature resistant, anti abrasive precious materials, only need 45 common steels to do just can satisfy use now.
The present invention can effectively avoid high-temperature metal overlap generation burr to fill in push rod and eject in the circular hole gap; Be unlikely to block the push rod turnover; In use push rod with eject the circular hole degree of wear and how can not have influence on ejecting smoothly of forging, and push rod, eject circular hole, chute requirement on machining accuracy low.It is rational in infrastructure, makes simply, and is easy to operate, uses reliably, saves cost, and the life-span is long, and it is used in mold cavity, ejecting high warm forging, is suitable for the high-efficiency automatic production line.
Claims (4)
1. one kind high warm forging liftout attachment; It is provided with one and ejects circular hole on mould; Eject in the circular hole from following insertion one push rod, it is characterized in that: eject circular hole top on the said mould and be provided with a fan-shaped chute, the position on said push rod top is lower than fan-shaped chute bottom.
2. high warm forging liftout attachment according to claim 1; It is characterized in that: said fan-shaped chute is to be that a trumpet-shaped openning is left at the center outward to eject circular hole; The groove of said fan-shaped chute is 2～3mm along chamfer radius R; Groove depth is 5～10mm, and trench bottom chamfer radius R is 5～6mm, and groove is 90 °～120 ° along fan-shaped angle.
3. high warm forging liftout attachment according to claim 1 is characterized in that: the position on said push rod top is lower than fan-shaped chute bottom 3-5mm.
4. high warm forging liftout attachment according to claim 1 is characterized in that: said push rod is 0.5mm-1.5mm with the fit clearance that ejects circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102463475A CN102744347A (en) | 2012-07-17 | 2012-07-17 | High-temperature forge piece ejecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102463475A CN102744347A (en) | 2012-07-17 | 2012-07-17 | High-temperature forge piece ejecting device |
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| CN102744347A true CN102744347A (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102463475A Pending CN102744347A (en) | 2012-07-17 | 2012-07-17 | High-temperature forge piece ejecting device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60250839A (en) * | 1984-05-26 | 1985-12-11 | Daido Steel Co Ltd | Taking out device for forging |
| JPS60250840A (en) * | 1984-05-28 | 1985-12-11 | Daido Steel Co Ltd | Taking out device for forging |
| CN2327470Y (en) * | 1998-04-03 | 1999-07-07 | 曲阜市锻件厂 | Mechanism for releasing steel cable cramp from forging mould |
| CN102430693A (en) * | 2010-09-11 | 2012-05-02 | 无锡透平叶片有限公司 | Special mould for last-stage blade of large half-speed nuclear turbine |
| CN202639192U (en) * | 2012-07-17 | 2013-01-02 | 文登恒润锻造有限公司 | High-temperature forge-piece ejection device |
-
2012
- 2012-07-17 CN CN2012102463475A patent/CN102744347A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60250839A (en) * | 1984-05-26 | 1985-12-11 | Daido Steel Co Ltd | Taking out device for forging |
| JPS60250840A (en) * | 1984-05-28 | 1985-12-11 | Daido Steel Co Ltd | Taking out device for forging |
| CN2327470Y (en) * | 1998-04-03 | 1999-07-07 | 曲阜市锻件厂 | Mechanism for releasing steel cable cramp from forging mould |
| CN102430693A (en) * | 2010-09-11 | 2012-05-02 | 无锡透平叶片有限公司 | Special mould for last-stage blade of large half-speed nuclear turbine |
| CN202639192U (en) * | 2012-07-17 | 2013-01-02 | 文登恒润锻造有限公司 | High-temperature forge-piece ejection device |
Non-Patent Citations (1)
| Title |
|---|
| 李连方: "螺旋压力机上热模锻模具飞边槽的设计", 《锻压技术》 * |
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Application publication date: 20121024 |