CN103056267A - Rapid die changing mechanism and die changing method for compression of AT steel rails - Google Patents
Rapid die changing mechanism and die changing method for compression of AT steel rails Download PDFInfo
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- CN103056267A CN103056267A CN2012105888496A CN201210588849A CN103056267A CN 103056267 A CN103056267 A CN 103056267A CN 2012105888496 A CN2012105888496 A CN 2012105888496A CN 201210588849 A CN201210588849 A CN 201210588849A CN 103056267 A CN103056267 A CN 103056267A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 title abstract description 5
- 239000010959 steel Substances 0.000 title abstract description 5
- 230000006835 compression Effects 0.000 title abstract 4
- 238000007906 compression Methods 0.000 title abstract 4
- 238000005242 forging Methods 0.000 claims description 33
- 230000008859 change Effects 0.000 claims description 22
- 238000003825 pressing Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 9
- 230000000994 depressogenic effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention relates to a rapid die changing mechanism and a die changing method for compression of AT steel rails on an oil press. The rapid die changing mechanism comprises a press working platform and a lower die plate, one ends of eight horizontally arranged rapping bars are respectively installed at two ends of two dummying dies and two finishing dies, and the other ends of the eight horizontally arranged rapping bars are respectively matched with the die changing mechanism. The rapid die changing mechanism and the die changing method for the compression of AT steel rails have the advantage that the die changing mechanism can achieve rapid die changing production of 60AT, 60D40 steel rail end compression on a 5000T oil press, reduces labor intensity of operators, and improves labor efficiency and consistency of product appearance and quality.
Description
Technical field
The present invention relates to carry out on a kind of hydraulic press AT rail die mould with fast mold change mechanism and die exchange, belong to railway switch and make the field.
Background technology
CN201768866U, title " a kind of AT rail heel end forging and molding mold " comprise the three station moulds and the station shaving die that are fixed on the template; Described three station moulds comprise upper die and lower die, patrix is comprised of the first to the 3rd station patrix that is fixed on the first cope match-plate pattern, counterdie is comprised of first to the 3rd station counterdie corresponding with the first to the 3rd station patrix that is fixed on the first lower bolster, on the forcing press lower table that the first lower bolster is fixed on, be provided with the mould and die preheating system at the first cope match-plate pattern with in the first lower bolster; A described station shaving die comprises punch and die, and punch is comprised of the rail head side cut punch and flange of rail side cut punch, the upper web of the rail loose piece that are fixed on the second cope match-plate pattern, and die is comprised of the lower web of the rail loose piece that is fixed on the second lower bolster.
CN101912945A, title " a kind of forging method of AT rail heel end " may further comprise the steps: one, the AT rail is heated to 1160～1250 ℃ in induction furnace; Two, the AT rail after the step 1 heating is carried out forging forming with three station moulds on the forcing press, 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 the forcing press up, finishes the just base process of one-step forming of the web of the rail in the mould die cavity of the first station; 2) the AT rail is vertically withdrawed from from the mould die cavity of the first station, with respect to step 1) the location of rail 90-degree rotation in when forging and pressing, vertically insert in the mould die cavity of the second station in the forcing press up the Rail bottom surface, finishes the just base process of one-step forming of the flange of rail; 3) the AT rail is vertically withdrawed from from the mould die cavity of the second station, with respect to step 2) location of rail 90-degree rotation when forging and pressing, make the state of rail consistent with the first station, vertically insert in the mould die cavity of the 3rd station in the forcing press, finish the finishing of the pressure-sizing shaping of AT rail; Three,, the AT rail behind step 2 forging forming is vertically withdrawed from from the mould die cavity of the 3rd station, vertically insert in the station shaving die die cavity in the forcing press and cut edge, with step 2 the 3rd) cutting burrs that forms in rail's end portion and bottom of step; Four, the AT rail is vertically withdrawed from from a station shaving die die cavity, make the AT rail be in rail head upwards, the downward upright position of the flange of rail, the AT rail is sent to the discharge pedestal position.
Above-mentioned background technology, the mould of mentioning and forging method are three cover casted die moulds, a cover edger, the process that adopts a fire three to press.Be sidelong (drawing money on credit up) compacting at a work step rail, two station rail stand upside down and suppress, and three station rail are sidelong (drawing money on credit up) compacting, all need to shift one's position.
CN102114518A, title " steel rail track switch fine-forging technology production line ", comprise the steel-rail rail-road switch forging press, be arranged on heating furnace and the normalizing furnace in forging press the place ahead, send device before the rail that is used for rail is clamped adjacent with heating furnace, with a plurality of being used for of being arranged side by side of heating furnace homonymy rail is pushed into the rail automatic feed mechanism that heats in the heating furnace, rail automatic material blanking mechanism with the normalizing furnace homonymy, between rail automatic charging device and rail automatic material blanking mechanism, be provided with rail lateral transfer dolly, rail lateral transfer dolly below arranges transverse shifting guide rail and driving rack, described rail lateral transfer dolly is provided with many rail inching devices and is used for driving the servomotor of rail lateral transfer dolly transverse shifting, is positioned at the rail automatic feed mechanism outside and is provided be used to the electrical control cubicles of controlling whole production line.Its weak point: the one, when one, three stations were suppressed, rail is short to be propped up up.The die changing mechanism of mentioning is along the rail lateral arrangement, and the pulling die holder is traversing, and to change the mould station, required drive is larger, is applicable to three station dies, and the upset of rail must be assisted by the dedicated operations machine; The 2nd, although automaticity is higher, die changing mechanism can only carry out transverse shifting, and enter mould and the demoulding of rail need the dedicated operations machine auxiliary, and sleeve mechanism involves great expense, and later maintenance cost is higher.
Summary of the invention
Purpose of design: avoid the weak point in the background technology; design two station fast mold change mechanisms on a kind of hydraulic press; solve the replacing of present blocking, finish-forging die and reset and need manually-operated; labour intensity is large; time and effort consuming; the mould position error is large, and the AT rail die mould of the larger problem of product appearance quality dispersion is with fast mold change mechanism and die exchange.
Design: in order to realize above-mentioned purpose of design.The application AT rail heel end moulding process is: rail is stood upside down, after being heated to forging temperature, enter mould by the overhead traveling crane handling, by blocking, finish-forging two molds (mold contains the mould of drawing money on credit, each one of short formwork), two fire are inferior compressing, for above-mentioned present situation, the design of proposition is: under the prerequisite that does not change existing ripe mould structure, design one cover is independent of the mechanism of hydraulic press main frame, realizes the horizontal die sinking and vertical die change of blocking, finish-forging die.This programme adopts the rapping bar of 8 lateral arrangement, be installed in respectively the two ends of two Preform Dies and two finish-forging dies, when not working, because the pretightning force of rapping bar medi-spring, make mould be in open mode, during work, offer horizontal component of mould by top mold frame die cavity inclined-plane, make mould closed, after the matched moulds compacting, along with top mold frame is lifted, lean on the pulling force pulling mould of spring outwards to move, make it to break away from rail.Blocker work is finished, and after the demoulding, adopts the piston cylinder of vertically arranging, promotes Preform Die and shifts out working position, and making finish-forging die enter the operating position, top mold frame is depressed, behind the matched moulds die mould, top mold frame is lifted, and by the die sinking of rapping bar pulling finish-forging die, finishes whole die mould process.The oil cylinder counter motion spurs two finishers position of vertically deactivating, and makes blocker return working position, carries out the compacting of next root rail spare.
Technical scheme 1: a kind of AT rail die mould fast mold change mechanism; comprise press bench and lower bolster; one end of the rapping bar of 8 lateral arrangement is installed in respectively the two ends of two Preform Dies and two finish-forging dies, and the other end of the rapping bar of 8 lateral arrangement cooperates with die changing mechanism respectively.
Technical scheme 2: a kind of AT rail die mould die exchange of fast mold change mechanism, adopt the rapping bar of 8 lateral arrangement, be installed in respectively the two ends of two Preform Dies and two finish-forging dies, when not working, because the pretightning force of rapping bar medi-spring, make mould be in open mode, during work, offer horizontal component of mould by top mold frame die cavity inclined-plane, make mould closed, after the matched moulds compacting, along with top mold frame is lifted, pulling force pulling mould by spring outwards moves, and makes it to break away from rail; Blocker work is finished, and after the demoulding, adopts the piston cylinder of vertically arranging, promotes Preform Die and shifts out working position, and making finish-forging die enter the operating position, top mold frame is depressed, behind the matched moulds die mould, top mold frame is lifted, and by the die sinking of rapping bar pulling finish-forging die, finishes whole die mould process; The oil cylinder counter motion spurs two finishers position of vertically deactivating, and makes blocker return working position, carries out the compacting of next root rail spare.
The present invention compares with the background skill; adopt the design's die changing mechanism; can realize at the 5000T hydraulic press quick die change production of 60AT, 60D40 rail heel end die mould, greatly reduce operator's labour intensity, improve the uniformity of efficiency and product appearance quality.
Description of drawings
Fig. 1 is die changing mechanism assembling schematic diagram.
Fig. 2 is die change oil cylinder installation site schematic diagram.
Fig. 3 is the rapping bar structural representation.
Fig. 4 is the die changing mechanism floor plan.
The specific embodiment
Embodiment 1: with reference to accompanying drawing 1-4.A kind of AT rail die mould fast mold change mechanism; comprise press bench 5 and lower bolster 7; one end of the rapping bar 1 of 8 lateral arrangement is installed in respectively the two ends of two Preform Dies 4 and two finish-forging dies 2, and the other end of the rapping bar 1 of 8 lateral arrangement cooperates with die changing mechanism 3 respectively.Die changing mechanism 3 is the hydraulic-driven changement.Two Preform Dies 4 and two finish-forging dies 2 consist of mould.The piston cylinder of vertically arranging promotes Preform Die 4.Rapping bar 1 is made of pull bar 104, tight sleeve 103, sleeve 102 and pressing spring 101, pull bar 104 two ends have connecting hole, pull bar 104 shafts are big or small projective table type shaft, pressing spring 101 is enclosed within on the shaft and pressing spring 101 1 ends push up mutually with the small boss face, sleeve 102 is enclosed within on the pressing spring 101 and sleeve 102 1 ends touch mutually with the large boss face of pull bar shaft, tight sleeve 103 is enclosed within on the shaft of pull bar, and tight sleeve 103 inserts in the sleeve (102) and with pressing spring 101 other ends and holds out against.
Namely, weak point during with the moulding of rail heel end props up mould and (contains a blocker, a finisher) be example, calculate the frictional force of monolithic mould deadweight formation and the sticking to mould power in the die mould process, determine the specification (the design adopts and is with prestressed cylindrically coiled spring) of spring, make four rapping bars, be connected with blocking, finish-forging die both ends of the surface respectively by bolt, sleeve all is fixed on the bearing, bearing is the plate welding structure, can fix 4 rapping bars on it, two of fronts are used for the horizontal die sinking of finish-forging die, two die sinkings that are used for Preform Die in back; Design the slideway of a taper, be fixed in by support on the workbench of forcing press, uniform 6 dovetails wheel of rest base, ride on slideway, adopt the advantage of this design to be, bearing both can vertically move at slideway, and swallowtail-shaped structure has limited again the horizontal looseness of bearing, the mould positioning accuracy when having guaranteed die sinking.Fill one on the slideway support along the vertical piston oil-cylinder of arranging of rail, pistons end links to each other with bearing, oil cylinder work, promote bearing vertically moving on slideway, by the rapping bar that is fixed thereon, drive a short mould and move to required station at lower bolster, realize the die change function.The die sinking of side mold of drawing money on credit is all identical with phocomelic side with die change.
Embodiment 2: on the basis of embodiment 1, describedly vertically arrange along rail, be used for promoting bearing, to reach the more ram cylinder of mold exchange purpose, can also adopt servomotor to replace.
Embodiment 3: on the basis of embodiment 1, in the described rapping bar, employing be the cylindrically coiled spring that pretightning force is arranged, be pressing spring, can also adopt and draw spring, can satisfy equally the die sinking requirement.
Embodiment 4: on the basis of embodiment 1, a kind of AT rail die mould die exchange of fast mold change mechanism, it is characterized in that: the rapping bar 1 that adopts 8 lateral arrangement, be installed in respectively the two ends of two Preform Dies 4 and two finish-forging dies 4, when not working, because the pretightning force of rapping bar 1 medi-spring, make mould be in open mode, during work, offer horizontal component of mould by top mold frame die cavity inclined-plane, make mould closed, after the matched moulds compacting, along with top mold frame is lifted, lean on the pulling force pulling mould of spring outwards to move, make it and rail 6 disengagings; Blocker work is finished, and after the demoulding, adopts the piston cylinder 9 of vertically arranging, promotes Preform Die 4 and shifts out working position, and making finish-forging die 2 enter the operating position, top mold frame is depressed, behind the matched moulds die mould, top mold frame is lifted, and by the die sinking of rapping bar pulling finish-forging die, finishes whole die mould process; The oil cylinder counter motion spurs two finishers position of vertically deactivating, and makes blocker return working position, carries out the compacting of next root rail spare.
What need to understand is: although above-described embodiment is to the mentality of designing of the present invention detailed text description of contrasting; but these text descriptions; just the simple text of mentality of designing of the present invention is described; rather than to the restriction of mentality of designing of the present invention; any combination, increase or modification that does not exceed mentality of designing of the present invention all falls within the scope of protection of the present invention.
Claims (7)
1. AT rail die mould fast mold change mechanism; comprise press bench (5) and lower bolster (7); it is characterized in that: an end of the rapping bar of 8 lateral arrangement (1) is installed in respectively the two ends of two Preform Dies (4) and two finish-forging dies (2), and the other end of the rapping bar of 8 lateral arrangement (1) cooperates with die changing mechanism (3) respectively.
2. AT rail die mould fast mold change mechanism according to claim 1, it is characterized in that: die changing mechanism (3) is the hydraulic-driven changement.
3. AT rail die mould fast mold change mechanism according to claim 1 is characterized in that: two Preform Dies (4) and two finish-forging dies (2) formation mould.
4. AT rail die mould fast mold change mechanism according to claim 1 is characterized in that: the piston cylinder promotion Preform Die (4) of vertically arranging.
5. AT rail die mould fast mold change mechanism according to claim 1; it is characterized in that: rapping bar (1) is by pull bar (104); tight sleeve (103); sleeve (102) and pressing spring (101) consist of; pull bar (104) two ends have connecting hole; pull bar (104) shaft is big or small projective table type shaft; pressing spring (101) is enclosed within on the shaft and pressing spring (101) one ends push up mutually with the small boss face; sleeve (102) is enclosed within pressing spring (101) upward and sleeve (102) one ends touch mutually with the large boss face of pull bar shaft; tight sleeve (103) is enclosed within on the shaft of pull bar, and tight sleeve (103) inserts in the sleeve (102) and with pressing spring (101) other end and holds out against.
6. AT rail die mould fast mold change mechanism according to claim 5 is characterized in that: pressing spring can adopt and draw spring to realize.
7. an AT rail die mould is with the die exchange of fast mold change mechanism, it is characterized in that: the rapping bar (1) that adopts 8 lateral arrangement, be installed in respectively the two ends of two Preform Dies (4) and two finish-forging dies (4), when not working, because the pretightning force of rapping bar (1) medi-spring, make mould be in open mode, during work, offer horizontal component of mould by top mold frame die cavity inclined-plane, make mould closed, after the matched moulds compacting, along with top mold frame is lifted, pulling force pulling mould by spring outwards moves, and makes it to break away from rail (6); Blocker work is finished, after the demoulding, adopt the piston cylinder (9) of vertically arranging, promote Preform Die (4) and shift out working position, and make finish-forging die (2) enter the operating position, top mold frame is depressed, behind the matched moulds die mould, top mold frame is lifted, and by the die sinking of rapping bar pulling finish-forging die, finishes whole die mould process; The oil cylinder counter motion spurs two finishers position of vertically deactivating, and makes blocker return working position, carries out the compacting of next root rail spare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210588849.6A CN103056267B (en) | 2012-12-31 | 2012-12-31 | AT rail die mould fast mold change mechanism and die exchange |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210588849.6A CN103056267B (en) | 2012-12-31 | 2012-12-31 | AT rail die mould fast mold change mechanism and die exchange |
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| Publication Number | Publication Date |
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| CN103056267A true CN103056267A (en) | 2013-04-24 |
| CN103056267B CN103056267B (en) | 2015-12-09 |
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| CN201210588849.6A Active CN103056267B (en) | 2012-12-31 | 2012-12-31 | AT rail die mould fast mold change mechanism and die exchange |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962490A (en) * | 2014-05-20 | 2014-08-06 | 中铁宝桥（南京）有限公司 | AT rail hot forging formation guide wheel type die changing device |
| CN112501958A (en) * | 2020-10-22 | 2021-03-16 | 中铁工程设计咨询集团有限公司 | Transformation method of AT steel rail |
| CN114012018A (en) * | 2021-11-04 | 2022-02-08 | 中国铁建重工集团股份有限公司道岔分公司 | Steel rail mold adjusting device and method |
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| CN201127977Y (en) * | 2007-11-22 | 2008-10-08 | 中国第一重型机械集团公司 | Hydraulic quick anvil-changing device of hydraulic machine |
| CN201579363U (en) * | 2009-12-09 | 2010-09-15 | 安阳锻压机械工业有限公司 | Forging hydraulic press with fast die-changing device |
| CN201823864U (en) * | 2010-10-15 | 2011-05-11 | 重庆富川机电有限公司 | Forming die for precision-forging stocks of primary driving teeth |
| CN203109138U (en) * | 2012-12-31 | 2013-08-07 | 中铁宝桥集团有限公司 | Quick die exchange mechanism for AT steel rail compression |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL204017A1 (en) * | 1978-01-14 | 1978-12-18 | Os Bad Rozwojowy Kotlow I Urza | A HEAT EXCHANGER ESPECIALLY A FLOW STEAM GENERATOR |
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2012
- 2012-12-31 CN CN201210588849.6A patent/CN103056267B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201127977Y (en) * | 2007-11-22 | 2008-10-08 | 中国第一重型机械集团公司 | Hydraulic quick anvil-changing device of hydraulic machine |
| CN201579363U (en) * | 2009-12-09 | 2010-09-15 | 安阳锻压机械工业有限公司 | Forging hydraulic press with fast die-changing device |
| CN201823864U (en) * | 2010-10-15 | 2011-05-11 | 重庆富川机电有限公司 | Forming die for precision-forging stocks of primary driving teeth |
| CN203109138U (en) * | 2012-12-31 | 2013-08-07 | 中铁宝桥集团有限公司 | Quick die exchange mechanism for AT steel rail compression |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962490A (en) * | 2014-05-20 | 2014-08-06 | 中铁宝桥（南京）有限公司 | AT rail hot forging formation guide wheel type die changing device |
| CN103962490B (en) * | 2014-05-20 | 2016-02-03 | 中铁宝桥（南京）有限公司 | AT rail hot-forging forming guide-roller type mould changing device |
| CN112501958A (en) * | 2020-10-22 | 2021-03-16 | 中铁工程设计咨询集团有限公司 | Transformation method of AT steel rail |
| CN114012018A (en) * | 2021-11-04 | 2022-02-08 | 中国铁建重工集团股份有限公司道岔分公司 | Steel rail mold adjusting device and method |
| CN114012018B (en) * | 2021-11-04 | 2023-12-12 | 中国铁建重工集团股份有限公司道岔分公司 | Rail die adjusting device and method |
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