CN104438998B - A kind of manufacture method of narrow step main shaft forging - Google Patents
A kind of manufacture method of narrow step main shaft forging Download PDFInfo
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- CN104438998B CN104438998B CN201410712684.8A CN201410712684A CN104438998B CN 104438998 B CN104438998 B CN 104438998B CN 201410712684 A CN201410712684 A CN 201410712684A CN 104438998 B CN104438998 B CN 104438998B
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Abstract
The invention discloses a kind of manufacture method of narrow step main shaft forging, utilize a pair of narrow anvil assembly, step comprises: make in advance the narrow anvil assembly of a pair of dimension, and this is connected by steady pin respectively with anvil under anvil on hydraulic press and hydraulic press narrow anvil assembly; Half-finished main shaft forging is heated to forging temperature range, uses the common hammering block of hydraulic press and hole punched device to carry out pretreatment; Then start hydraulic press, utilize the narrow anvil piece of upper-lower position to forge half-finished main shaft forging section to be processed, until reach the technical requirement of narrow stepped portion, obtain the narrow step main shaft forging that common hammering block cannot forge. The inventive method, tool structure is simple, easy to operate, can forge the narrow step shape that common hammering block cannot forge.
Description
Technical field
The invention belongs to flat-die forging technical field, relate to a kind of manufacture of narrow step main shaft forgingMethod.
Background technology
Narrow step main shaft forging use is extensive, and market demand is larger, as water power, fireThe use amount of the industry fields such as electricity is larger. The main shaft forging structure of narrow step is special, forges in realityIn part manufacture process, large free forging is made hydraulic press cannot normally forge narrow step, thereby causesThe waste of material of main shaft forging of manufacturing narrow step is larger, and post-production is longer man-hour, additionally increasesAdd a part of manufacturing cost. If design separately a set of tooling auxiliary tool in order to forge narrow step, the cost of fabricating tools accessory is high, need to consume a large amount of mold materials, addsIn forging manufacture process, the exchange of tooling auxiliary tool is frequent, and the process that changes the outfit is more loaded down with trivial details, and operation needsWill the time long, cause production efficiency low, this with regard to active demand a kind of quick and easy narrowThe manufacture method of rank main shaft forging.
Summary of the invention
The object of this invention is to provide a kind of manufacture method of narrow step main shaft forging, solved existingThere is technology in the main shaft forging process of the narrow step of processing, cannot normally forge narrow step, makeWaste of material is larger, the problem that post-production is grown man-hour.
The technical scheme of the inventive method is that a kind of manufacture method of narrow step main shaft forging, pressesImplement according to following steps:
First, according to the shape of the upper and lower anvil of hydraulic press and structure, make a pair of dimensionNarrow anvil assembly, and this is passed through respectively solid to anvil under anvil and hydraulic press on narrow anvil assembly and hydraulic pressRationed marketing connects, and installs clamp;
Secondly, half-finished main shaft forging is heated to forging temperature range, uses hydraulic press generalLogical hammering block and hole punched device carry out the pretreatment of jumping-up, punching, pulling, card seal;
Then, start hydraulic press, anvil under anvil and hydraulic press is installed on the hydraulic press of narrow anvil assemblyDrive narrow anvil piece by support respectively, transmit the upper downforce of hydraulic press, utilize upper-lower positionNarrow anvil piece forges half-finished main shaft forging section to be processed, until reach narrow stepped regionThe technical requirement of section, obtains the narrow step main shaft forging that common hammering block cannot forge.
The manufacture method of narrow step main shaft forging of the present invention, its feature is also:
The structure of narrow anvil assembly is, comprises support and narrow anvil piece that one connects, and support is by steel plateSimmering and bending are shaped, and the cross section of support is U-shaped, the U-shaped plate outer surface of support longitudinally inHeart wire bonding is connected to narrow anvil piece; The biside plate of support is symmetrically arranged with two groups of through holes, at each through holeOuter opening's edge both sides are provided with a pair of card holder and a Lift hook.
The narrow length of bench of main shaft of width≤reserved impression length L EssT.LTssT.LT designing requirement of narrow anvil piece.
The steel plate thickness of support is at least 30mm, support simmering and bending shape should with anvil on hydraulic press andUnder hydraulic press, the cross sectional shape of anvil is supporting, and the biside plate inner surface of support after simmering and bending total betweenDistance, should be than the large 15mm-20mm of width of anvil under anvil on hydraulic press or hydraulic press.
On hydraulic press, under anvil and hydraulic press, the blind hole on anvil and steady pin are interference fit.
The invention has the beneficial effects as follows, by manufacturing easy frock, complete large-scale frock abilityCompleting of task. Narrow anvil assembly changes the outfit quick and easy, has reduced the main shaft forging of narrow stepManufacturing cost, has shortened process-cycle of the main shaft forging of narrow step, has reduced tooling auxiliary tool systemCause this, save mold materials, improved production efficiency.
Brief description of the drawings
Fig. 1 is the narrow anvil assembly structural representation using in the inventive method;
Fig. 2 is anvil assembly structure schematic diagram on narrow anvil assembly and hydraulic press in the inventive method;
Fig. 3 is the main shaft forging semi-finished product structure schematic diagram that the inventive method adopts;
Fig. 4 is upper and lower narrow anvil assembly and hydraulic press assembly structure schematic diagram in the inventive method;
Fig. 5 is the narrow step main shaft forging structural representation that the inventive method manufacture completes.
In figure, 1. narrow anvil piece, 2. support, 3. card holder, 4. Lift hook, 5. steady pin, 6. clamp,7. anvil on hydraulic press, 8. anvil under hydraulic press, 9. main shaft forging.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, the inventive method has been used a kind of narrow anvil assembly in process, shouldNarrow anvil assembly must a pair ofly support the use up and down, and both specifications are consistent; This narrow anvil assemblyStructure is, comprises support 2 and narrow anvil piece 1 that one connects, and support 2 is good by solderabilitySteel plate simmering and bending are shaped, and the cross section of support 2 is U-shaped, at the U-shaped plate outer surface of support 2Longitudinally center line is welded with narrow anvil piece 1; The biside plate of support 2 is symmetrically arranged with two groups of through holes,Outside each through hole, opening's edge both sides are provided with a pair of card holder 3 and a Lift hook 4, every a pair of cardFrame 3 is for installing a clamp 6, and Lift hook 4 is for being lifted into hydraulic press by narrow anvil assemblyUnder anvil 7 and hydraulic press on anvil 8;
For ensureing instructions for use, the narrow anvil piece preferred 5CrNiMo of 1 material or 5CrMnMo'sMould steel, hardness is modified HB320-HB380, and the width b of narrow anvil piece 1≤reserved pressure(length L 1 is shown in Fig. 3 to the narrow length of bench L of main shaft of seal length L 1 < designing requirement, length LSee Fig. 5); Good 35 carbon steel plates of the preferred solderability of support 2, the steel plate thickness of support 2Be at least 30mm, what support 2 simmering and bending shapes should be with anvil 8 under anvil on hydraulic press 7 and hydraulic pressCross sectional shape is supporting, and the total spacing a of biside plate inner surface of support 2 after simmering and bending, should compareThe large 15mm-20mm of width c of anvil 8 under anvil 7 or hydraulic press on hydraulic press.
The package assembly of anvil 7 signal on a set of narrow anvil assembly only showing as Fig. 2 and hydraulic pressFigure, on hydraulic press, the each side of anvil 7 laterally has two blind holes, and on hydraulic press, anvil 7 is embedded inIn support 2, two side through hole of support 2 are plugged with separately with the corresponding blind hole of anvil on hydraulic press 7A steady pin 5, each steady pin 5 be inserted into be all provided with behind the end clamp 6 carry out spacing,Prevent that in operating process, steady pin 5 is deviate from, blind on anvil 8 under anvil 7 and hydraulic press on hydraulic pressHole and steady pin 5 are interference fit.
The inventive method is utilized above-mentioned narrow anvil assembly on existing hydraulic press, according to belowStep is implemented:
First,, according to shape and the structure of the upper and lower anvil of conventional oil press, make in advance a pair of phaseAnswer the narrow anvil assembly of specification, and by this to anvil under anvil 7 and hydraulic press on narrow anvil assembly and hydraulic press8 connect by steady pin 5 respectively, install clamp 6, as Fig. 2;
Secondly, as Fig. 3, half-finished main shaft forging 9 is heated to forging temperature range, makesCarry out the pretreatment of jumping-up, punching, pulling, card seal with the common hammering block of hydraulic press and hole punched device;
Then, as Fig. 4, start hydraulic press, anvil 7 Hes on the hydraulic press of narrow anvil assembly are installedUnder hydraulic press, anvil 8 drives narrow anvil piece 1 by support 2 respectively, transmits the upper downforce of hydraulic press,Utilize narrow anvil piece 1 in the upper and lower narrow anvil assembly section to be processed to half-finished main shaft forging 9(the L1 section in Fig. 3) forge, until reach (in Fig. 5 of narrow stepped portionL section) technical requirement, obtain the narrow step main shaft forging that common hammering block cannot forge,Become.
The inventive method, when forging, narrow anvil assembly is only for forging and pressing half-finished main shaft forging 9L1 section, remainder should not adopt narrow anvil assembly to forge.
Before this, prior art does not have the preparation of narrow anvil assembly, because hydraulic press is common up and downThe too wide and L section in the middle of cannot forging of hammering block, and this method is by the upper and lower hammering block of hydraulic press respectivelyNarrow anvil assembly is installed and just can be forged L section, save the material of this forging, after having shortened laterIn the machined man-hour of phase, improve whole work efficiency.
Through on probation, adopt manufacture method of the present invention successfully to forge 6 hydraulic turbines of certain model narrowThe main shaft forging of step, saves more than 20 tons of materials compared with the conventional method altogether, and economic benefit is aobviousWork.
Claims (4)
1. a manufacture method for narrow step main shaft forging, is characterized in that, implements according to following steps:
First,, according to the shape of the upper and lower anvil of hydraulic press and structure, make the narrow anvil group of a pair of dimensionPart, and this is passed through respectively fixing to anvil (8) under anvil (7) and hydraulic press on narrow anvil assembly and hydraulic pressPin (5) connects, and installs clamp (6); The structure of described narrow anvil assembly is to comprise that one connectsSupport (2) and narrow anvil piece (1), support (2) is shaped by steel plate simmering and bending, the cross section of support (2)For U-shaped, the U-shaped plate outer surface of support (2) longitudinally center line be welded with narrow anvil piece (1);The biside plate of support (2) is symmetrically arranged with two groups of through holes, and outside each through hole, opening's edge both sides are provided with oneTo card holder (3) and a Lift hook (4);
Secondly, half-finished main shaft forging (9) is heated to forging temperature range, uses hydraulic press generalLogical hammering block and hole punched device carry out the pretreatment of jumping-up, punching, pulling, card seal;
Then, start hydraulic press, anvil under anvil (7) and hydraulic press is installed on the hydraulic press of narrow anvil assembly(8) drive narrow anvil piece (1) by support (2) respectively, transmit the upper downforce of hydraulic press, in utilizationThe narrow anvil piece (1) of upper/lower positions forges half-finished main shaft forging (9) section to be processed, untilReach the technical requirement of narrow stepped portion, obtain the narrow step main shaft forging that common hammering block cannot forge,Become.
2. the manufacture method of narrow step main shaft forging according to claim 1, is characterized in that: instituteThe narrow length of bench of main shaft of width≤reserved impression length L EssT.LTssT.LT designing requirement of the narrow anvil piece (1) of stating.
3. the manufacture method of narrow step main shaft forging according to claim 1, is characterized in that: instituteThe steel plate thickness of the support (2) of stating is at least 30mm, support (2) simmering and bending shape should with hydraulic press onUnder anvil (7) and hydraulic press, the cross sectional shape of anvil (8) is supporting, and support (2) after simmering and bending twoThe total spacing of side plate inner surface, should be larger than the width of anvil (8) under anvil on hydraulic press (7) or hydraulic press15mm-20mm。
4. the manufacture method of narrow step main shaft forging according to claim 1, is characterized in that: instituteBlind hole under anvil on the hydraulic press of stating (7) and hydraulic press on anvil (8) and steady pin (5) are joined for interferenceClose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712684.8A CN104438998B (en) | 2014-11-28 | 2014-11-28 | A kind of manufacture method of narrow step main shaft forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712684.8A CN104438998B (en) | 2014-11-28 | 2014-11-28 | A kind of manufacture method of narrow step main shaft forging |
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| Publication Number | Publication Date |
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| CN104438998A CN104438998A (en) | 2015-03-25 |
| CN104438998B true CN104438998B (en) | 2016-05-25 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111451435A (en) * | 2020-04-28 | 2020-07-28 | 河南中原特钢装备制造有限公司 | Forging control method for large-size step shaft part |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736654A (en) * | 2004-08-19 | 2006-02-22 | 中国北车集团大同电力机车有限责任公司 | Integrated forging method of flange type step thin wall long sheath forging |
| CN201659243U (en) * | 2010-02-04 | 2010-12-01 | 上海腾辉锻造有限公司 | Inlaid block type hammer forging die |
| CN201791892U (en) * | 2010-09-15 | 2011-04-13 | 江苏国光重型机械有限公司 | Split upper anvil stand |
| CN202356556U (en) * | 2011-11-15 | 2012-08-01 | 中冶陕压重工设备有限公司 | Mincing knife for large-size free forging hydraulic press |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101411516B1 (en) * | 2013-01-03 | 2014-06-24 | 재단법인 경남테크노파크 | Manufacturing method of main shaft for wind turbine |
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2014
- 2014-11-28 CN CN201410712684.8A patent/CN104438998B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736654A (en) * | 2004-08-19 | 2006-02-22 | 中国北车集团大同电力机车有限责任公司 | Integrated forging method of flange type step thin wall long sheath forging |
| CN201659243U (en) * | 2010-02-04 | 2010-12-01 | 上海腾辉锻造有限公司 | Inlaid block type hammer forging die |
| CN201791892U (en) * | 2010-09-15 | 2011-04-13 | 江苏国光重型机械有限公司 | Split upper anvil stand |
| CN202356556U (en) * | 2011-11-15 | 2012-08-01 | 中冶陕压重工设备有限公司 | Mincing knife for large-size free forging hydraulic press |
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| CN104438998A (en) | 2015-03-25 |
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