CN103962490B - AT rail hot-forging forming guide-roller type mould changing device - Google Patents
AT rail hot-forging forming guide-roller type mould changing device Download PDFInfo
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- CN103962490B CN103962490B CN201410213196.2A CN201410213196A CN103962490B CN 103962490 B CN103962490 B CN 103962490B CN 201410213196 A CN201410213196 A CN 201410213196A CN 103962490 B CN103962490 B CN 103962490B
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- 238000005242 forging Methods 0.000 title claims abstract description 40
- 230000000903 blocking effect Effects 0.000 claims description 10
- 230000001737 promoting effect Effects 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002977 hyperthermial effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Abstract
The invention discloses a kind of AT rail hot-forging forming guide-roller type mould changing device, described mould changing device by the connection framework of mould, mould connection handle, die change propulsion power unit, framework jack-up guide wheel mechanism form; The connection framework of described mould is closed framework structure, and mould connection handle is located on mould link, and mould connection handle connects heel end forging mold; Described mould changing device is provided with the framework jack-up guide wheel mechanism making the die change propulsion power unit of die horizontal movement and make mould connect framework to move both vertically.The features such as the present invention is rational in infrastructure, simple and practical, highly versatile, convenient for installation and maintenance, are applicable to the automatic mold-change of loose piece class mould, can be widely used in rail part heel end forging field.
Description
Technical field
The present invention relates to the frock technical field of AT rail hot-forging forming, be specifically related to the guide-roller type mould changing device of hot-forging forming.
Background technology
On current rail heel end forging die change system, define two general orientation for many years, but all there is certain drawback.
The patent No. is CN98107800.1, and name is called " steel rail extruding technology using complex blocks ", discloses a kind of extrusion process of using complex blocks.Processing step is as follows: 1, adherence pressure machine, is placed upside down in by the rail being heated to 1050 DEG C in die shoe rail head groove; 2, be placed on the platform of die shoe by left and right waist mould, using complex blocks is placed on the work side of waist mould; 3, bed die is placed on the flange of rail of heating rail; 4, press-fitting mould pressurizeing 1000 ~ 1200t only less pressurize 2 second under forcing press; 5, the rail of adherence pressure machine extruding is shaping.
The patent No. is 201010239382.5, and name is called, and " a kind of forging method of AT rail heel end " discloses the shaping forging method of a kind of three stations, and it comprises the following steps: one, AT rail is heated to 1160 ~ 1250 DEG C in induction furnace; Two, three station moulds on the AT rail forcing press after step one being heated carry out forging forming, forming step comprises: 1) make the flange of rail become 90 degree with level, the long limb of rail is transported to the first station in forcing press upward, completes the base process of the first one-step forming of the web of the rail in the mould die cavity of the first station; 2) AT rail is longitudinally exited from the mould die cavity of the first station, relative to step 1) forging and stamping time location of rail 90-degree rotation, Rail bottom surface upward, is longitudinally inserted in the mould die cavity of the second station in forcing press, completes the base process of the first one-step forming of the flange of rail; 3) AT rail is longitudinally exited from the mould die cavity of the second station, relative to step 2) forging and stamping time location of rail 90-degree rotation, make the state of rail consistent with the first station, longitudinally insert in the mould die cavity of the 3rd station in forcing press, complete the finishing of the pressure-sizing shaping of AT rail; Three, the AT rail after step 2 forging forming is longitudinally exited from the mould die cavity of the 3rd station, longitudinally insert in the station shaving die die cavity in forcing press and carry out trimming, by the 3rd of step 2 the) cutting burrs that formed at rail's end portion and bottom of step; Four, AT rail is longitudinally exited from a station shaving die die cavity, make AT rail be in rail head upwards, the downward upright position of the flange of rail, AT rail is sent to discharge pedestal position.
But, the die change system of original loose piece class mould of the prior art, structure is yielding, is subject to mould Effect of Hyperthermic Environment; And three station die change system, one-time investment is large, and in die change process, workpiece must exit impression, and die change efficiency is low.Composite factor causes rail heel end to forge die change system and restricts the development that track switch is produced.
Summary of the invention
In order to solve the technical problem existed in the die change system of loose piece class mould in prior art and three station die change system, the present invention proposes a kind of new guide-roller type mould changing device.
Concrete technical scheme is as follows:
AT rail hot-forging forming guide-roller type mould changing device, described mould changing device is by the connection framework of mould, and mould connection handle, die change propulsion power unit, framework jack-up guide wheel mechanism forms.
The connection framework of described mould is closed framework structure, by closing stressed pattern, eliminate the impact of this reaction force on framework form and position tolerance, mould connection handle is located on mould link, mould connection handle connects heel end forging mold, die shank position arranges reinforcement gusset, improves the stress performance of connecting frame; Described mould changing device is provided with the framework jack-up guide wheel mechanism making the die change propulsion power unit of die horizontal movement and make mould connect framework to move both vertically, and die change propulsion power unit makes AT guide rail switch between blocking station die and finish-forging station die; Described framework jack-up guide wheel mechanism promotes die change framework, makes it depart from the guide rail upper surface of both sides.
The connection framework of described mould is welded to form by steel plate and I-steel, and described mould link is made up of lower mold holder and die change framework, and lower mold holder is located at the bottom of mould changing device, and die change framework is connected with die change propulsion power unit and framework jack-up guide wheel mechanism.
Described mould connection handle is axle sleeve clip spring structure, and the inside of connection handle is provided with back-moving spring; Described mould connection handle is provided with eight, and often four facing each other is one group, and wherein one group of mould connection handle connects blocking working position mould, and another group mould connects finish-forging working position mould; Described blocking working position mould and finish-forging working position mould are positioned in same level.
Described framework jack-up guide wheel mechanism forms by vertically promoting oil cylinder, movable frames and guide wheel, and the vertical oil cylinder that promotes connects lower mold holder and movable frames, and movable frames is provided with guide wheel, and guide wheel is connected with die change framework.
Described die change propulsion power unit is made up of Level Promoting oil cylinder, Level Promoting oil cylinder connecting mold link die change framework.
Adopt technical solution of the present invention, promote existing railroad turnout steel rail part heel end forging equipment and technical merit, reach object that is stable and that promote track switch product quality, extend automatic mould changing device Acceptable life, enhance productivity.
Described die change propulsion power unit is made up of Level Promoting oil cylinder, and Level Promoting oil cylinder connects die change framework, and die change framework can move along the guide wheel in movable frames.
Rational in infrastructure, simple and practical, highly versatile, the feature such as convenient for installation and maintenance, is applicable to the automatic mold-change of loose piece class mould, can be widely used in rail part heel end forging field.
Accompanying drawing explanation
Fig. 1 is the mould connection handle structure chart of AT rail hot-forging forming guide-roller type mould changing device of the present invention.
Fig. 2 is the Guiding wheel structure schematic diagram of the die change framework of AT rail hot-forging forming guide-roller type mould changing device of the present invention.
Fig. 3 is the mould changing device schematic diagram of AT rail hot-forging forming guide-roller type mould changing device of the present invention.
Wherein: 1-mould connects framework; 2-mould connection handle
11-vertically promotes oil cylinder; 5-framework jack-up guide wheel.
12-die change guider; 2-mould connection handle; 3-die change framework; 4-heel end forging mold; 6-lower mold holder; 7-press bench; The horizontal die change of 8-promotes oil cylinder; 9-adjusts backing plate; 10-moves horizontally guide post.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, specific embodiments of the invention are further described.
AT rail hot-forging forming guide-roller type mould changing device is mainly divided into four major parts, is respectively the connection framework 1 of blocking, finish-forging die, mould connection handle 2, and horizontal die change promotes oil cylinder 8, framework jack-up guide wheel mechanism.
As shown in Figure 1, the connection framework 1 of blocking, finish-forging die is welded by steel plate and I-steel, adopt and close stressed framework design, and reinforcement gusset is set at die shank position, improve the stress performance of connecting frame, making mould pushing-and-pulling reaction force reasonable distribution in connection framework, by closing stressed pattern, eliminating the impact of this reaction force on framework form and position tolerance; Die change framework sets up cooling water channel, carries out supplement heat rejecter to the framework position that the mould with hot operation comes in contact, and Yin Wendu is higher and failure phenomenon occurs to ensure it to connect stress.
As shown in Figure 1, mould connection handle, adopts the design of axle sleeve clip spring structure, and mould connection handle 2 is fixedly mounted on and connects on framework 1, and inside arranges back-moving spring, and spring pre-tightening is installed, to reach the object of tension mould.
Mould changing device designs 8 connection handles 2 altogether, every 4 unit, totally 2 unit, and be responsible for respectively connecting heel end forging mold 4, heel end forging mold 4 comprises the work mould of fixing blocking station, finish-forging station.Wherein the work mould of blocking station and the work mould of finish-forging station are located at mould side by side and are connected on framework 1, under promoting the promotion of oil cylinder, realize the switching of blocking station and finish-forging station at horizontal die change.
Die change promotes oil cylinder power unit, comprises for mould link getaway plane provides the Vertical Cylinders group of power, and moves the cross cylinder group providing power for the Switch of working position of mould.
As shown in Figure 2, the Guiding wheel structure of die change framework, adopt roller-coaster principle, by 6 jack-up guide wheel 5 jack-up die change frameworks 3, make it depart from the guide rail upper surface of both sides, the mobile status of die change framework 3 is become dyanainic friction from static friction, change horizontal die change promotion oil cylinder 8 by 2 groups and die change framework 3 is moved to mold work position, reach the object significantly reducing the translatory resistance of die change framework 3, thus improve mould changing device overall structure stability, improve service life.Vertical promotion oil cylinder 11 promotes movable frames and jack-up guide wheel 5.
As shown in Figure 3, AT rail hot-forging forming guide-roller type mould changing device, mould changing device comprises lower mold holder 6, lower mold holder 6 is located at the bottom of mould changing device, lower mold holder is provided with press bench 7, horizontal die change promotes oil cylinder 8 and is located on pressure gauge workbench 7, and horizontal die change promotes oil cylinder 8 and moves horizontally along moving horizontally guide post 10, and mould changing device is also provided with die change guider 12.Die change framework 3 is provided with adjustment backing plate 9.
Claims (3)
1.AT rail hot-forging forming guide-roller type mould changing device, is characterized in that: described mould changing device by the connection framework of mould, mould connection handle, die change propulsion power unit, framework jack-up guide wheel mechanism form; The connection framework of described mould is closed framework structure, and mould connection handle is located on mould link, and mould connection handle connects heel end forging mold; Described mould changing device is provided with the framework jack-up guide wheel mechanism making the die change propulsion power unit of die horizontal movement and make mould connect framework to move both vertically; Described mould connection handle is axle sleeve clip spring structure, and the inside of connection handle is provided with back-moving spring; Described mould connection handle is provided with eight, and often four facing each other is one group, and wherein one group of mould connection handle connects blocking working position mould, and another group mould connection handle connects finish-forging working position mould; Described blocking working position mould and finish-forging working position mould are positioned in same level; Described framework jack-up guide wheel mechanism forms by vertically promoting oil cylinder, movable frames and guide wheel, and the vertical oil cylinder that promotes connects lower mold holder and movable frames, and movable frames is provided with guide wheel, and guide wheel is connected with die change framework.
2. AT rail hot-forging forming guide-roller type mould changing device according to claim 1, it is characterized in that: the connection framework of described mould is welded to form by steel plate and I-steel, described mould link is made up of lower mold holder and die change framework, lower mold holder is located at the bottom of mould changing device, and die change framework is connected with die change propulsion power unit or framework jack-up guide wheel mechanism.
3. AT rail hot-forging forming guide-roller type mould changing device according to claim 1, it is characterized in that: described die change propulsion power unit is made up of Level Promoting oil cylinder, Level Promoting oil cylinder connects die change framework, and die change framework can move along the guide wheel in movable frames.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410213196.2A CN103962490B (en) | 2014-05-20 | 2014-05-20 | AT rail hot-forging forming guide-roller type mould changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410213196.2A CN103962490B (en) | 2014-05-20 | 2014-05-20 | AT rail hot-forging forming guide-roller type mould changing device |
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| Publication Number | Publication Date |
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| CN103962490A CN103962490A (en) | 2014-08-06 |
| CN103962490B true CN103962490B (en) | 2016-02-03 |
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| CN201410213196.2A Active CN103962490B (en) | 2014-05-20 | 2014-05-20 | AT rail hot-forging forming guide-roller type mould changing device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234332A (en) * | 2015-11-12 | 2016-01-13 | 张家港市锦力标准件制造有限公司 | Hot-forging die |
| CN113664139A (en) * | 2021-09-18 | 2021-11-19 | 中铁宝桥（南京）有限公司 | Automatic control system and method of special-shaped rail forging die |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5582062A (en) * | 1995-04-28 | 1996-12-10 | Midwest Brake Bond Company | Die changing system including moving bolsters |
| CN1970283A (en) * | 2005-11-21 | 2007-05-30 | 天津市天锻压力机有限公司 | Double-work position automatic die-changing system for hydraulic press |
| CN1981953A (en) * | 2005-12-12 | 2007-06-20 | 李晓龙 | Simple die replacing unit |
| CN103056267A (en) * | 2012-12-31 | 2013-04-24 | 中铁宝桥集团有限公司 | Rapid die changing mechanism and die changing method for compression of AT steel rails |
| CN203830630U (en) * | 2014-05-20 | 2014-09-17 | 中铁宝桥（南京）有限公司 | Guide wheel type die changing device for hot-forging forming of AT rail |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4567174B2 (en) * | 2000-11-16 | 2010-10-20 | 本田技研工業株式会社 | Mold changer for press machine |
| JP5066157B2 (en) * | 2009-10-28 | 2012-11-07 | 住友重機械テクノフォート株式会社 | Forging press operation equipment |
-
2014
- 2014-05-20 CN CN201410213196.2A patent/CN103962490B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5582062A (en) * | 1995-04-28 | 1996-12-10 | Midwest Brake Bond Company | Die changing system including moving bolsters |
| CN1970283A (en) * | 2005-11-21 | 2007-05-30 | 天津市天锻压力机有限公司 | Double-work position automatic die-changing system for hydraulic press |
| CN1981953A (en) * | 2005-12-12 | 2007-06-20 | 李晓龙 | Simple die replacing unit |
| CN103056267A (en) * | 2012-12-31 | 2013-04-24 | 中铁宝桥集团有限公司 | Rapid die changing mechanism and die changing method for compression of AT steel rails |
| CN203830630U (en) * | 2014-05-20 | 2014-09-17 | 中铁宝桥（南京）有限公司 | Guide wheel type die changing device for hot-forging forming of AT rail |
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| CN103962490A (en) | 2014-08-06 |
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