CN104550588B - A kind of numerical control open die forging sub-material pulling blank-making technology of blade forging - Google Patents
A kind of numerical control open die forging sub-material pulling blank-making technology of blade forging Download PDFInfo
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- CN104550588B CN104550588B CN201410820961.7A CN201410820961A CN104550588B CN 104550588 B CN104550588 B CN 104550588B CN 201410820961 A CN201410820961 A CN 201410820961A CN 104550588 B CN104550588 B CN 104550588B
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Abstract
The invention provides the numerical control open die forging sub-material pulling blank-making technology of a kind of blade forging, it can effectively overcome the base low precision relying on pneumatic hammer offhand base to exist at present, inefficient problem, and is applied to the variable cross-section pulling of long-axle workpieces.It uses three-dimensional software design blank sub-material each work step figure and calculates the compact dimensions at the variant position of blank, compact dimensions numerical programming program according to each work step figure and the variant position of blank, it is transported to operation machine jaw after being heated by raw material bar, transfer on molding anvil block after raw material bar being entered the location of initial position by operation machine jaw and is clamped, molding anvil block is provided with sub-material forming surface, numerical control program controls described operation machine and realizes the lifting to raw material billet position, rotate, walking, the numerical control quick forging machine tup described molding anvil block of drive of numerical control program control simultaneously repeatedly impacts described raw material bar and makes the sub-material forming surface of molding anvil block that raw material bar directly carry out sub-material and pulling base.
Description
Technical field
The present invention relates to the open die forging blank-making technology field of forging, especially relate to the open die forging blank-making technology of blade forging, the numerical control open die forging sub-material pulling blank-making technology of a kind of blade forging.
Background technology
The base of stainless steel blade sub-material pulling for a long time relies on pneumatic hammer offhand always, thus the size of its blank, surface quality and stability are affected by human factors relatively big always, cannot ensure that the unification of product quality is up to standard in batch production；Particularly in sub-material pulling technique, its sub-material base needs first to use Huff die to carry out sub-material and uses pneumatic hammer to pull out again, and it is frequently necessary to interval dwell during conventional air leadman's work base to measure the size of blank different parts to guarantee that blank finally meets the design requirement of drawing, thus its base efficiency is low；Also having numerical control base technology at present although domestic, but it is mainly used in the uiform section pulling processing of long-axle workpieces, the variable cross-section pulling for long-axle workpieces is still the manually operated open die forging molding that employing is inefficient, machining accuracy is relatively low.
Summary of the invention
For the problems referred to above, the invention provides the numerical control open die forging sub-material pulling blank-making technology of a kind of blade forging, it can effectively overcome the base low precision relying on pneumatic hammer offhand base to exist at present, inefficient problem, and is applied to the variable cross-section pulling of long-axle workpieces.
nullA kind of numerical control open die forging blank-making technology of blade forging，It is characterized in that: use three-dimensional software design blank sub-material each work step figure and calculate the compact dimensions at the variant position of described blank，Compact dimensions numerical programming program according to described each work step figure and the variant position of described blank，It is transported to operation machine jaw after being heated by raw material bar，Transfer on molding anvil block after described raw material bar being entered the location of initial position by described operation machine jaw and is clamped，Described molding anvil block is provided with sub-material forming surface，Described numerical control program controls described operation machine and realizes the lifting to raw material billet position、Rotate、Walking，The most described numerical control program control numerical control quick forging machine tup described molding anvil block of drive repeatedly impacts described raw material bar and makes the sub-material forming surface of described molding anvil block that described raw material bar directly carry out sub-material and pulling base.
It is further characterized by
Described molding anvil block includes in molding anvil block under anvil block and molding, and in described molding, under anvil block, molding, anvil block is provided with forming surface according to the compact dimensions of described blank respectively, and in described molding, anvil block is connected with the tup of described numerical control quick forging machine；
Described operation machine jaw carries out the location of initial position by the locating piece of setting on jaw principal arm to described raw material bar；
Described numerical control program is determined by depressing position, backhaul distance and the number of blows of described numerical control quick forging machine tup and to the impact repeatedly of described raw material bar thus realizes the sub-material pulling molding of blank to control anvil block in described molding；
Described depressing position refers to that anvil block in described molding hits to distance between anvil block during minimum point and under described molding；Described backhaul distance refers to that anvil block backhaul in described molding is to distance between anvil block during peak and under described molding；Described number of blows refers to that described numerical control quick forging machine tup controls anvil block in described molding and impacts the number of times of described raw material bar；
Described numerical control program is determined by the positional information of described operation machine jaw to control the lifting of the position of described raw material bar, to rotate and walking, and the positional information of described operation machine jaw includes the walking original position of described operation machine jaw, walking stepping, start angle, the anglec of rotation, lifting position and servo-actuated distance；
Described walking stepping is a described operation machine jaw travel distance relative to described walking original position；The described anglec of rotation is a described operation machine jaw anglec of rotation size relative to described start angle；Described lifting position is the described operation machine jaw upper and lower position relative to the benchmark of described operation machine；Described servo-actuated distance is described raw material bar deviation of described raw material bar center before and after being impacted by described molding anvil block.
The beneficial effects of the present invention is: it has abandoned the mode of traditional-handwork open die forging sub-material pulling base completely, its tup controlling numerical control quick forging machine by numerical control program drives anvil block in molding repeatedly to impact the raw material bar being positioned under molding on anvil block, data program realizes the lifting of raw material billet position according to the compact dimensions control operation machine jaw action at blank sub-material molding position simultaneously, rotate and walking, finally realize the sub-material pulling base of the Automatic Control of blank, and its in the course of processing without the measurement size that pauses, thus production efficiency can not only be greatly improved, but also the stablizing of product quality when can guarantee that batch production；Additionally, the molding anvil block that it uses can pull out after sub-material direct to raw material bar, first carry out sub-material with Huff die during without the pulling base of traditional-handwork sub-material for another example to be pulled out by pneumatic hammer again, it can improve working (machining) efficiency further, and can effectively reduce processing tool configuration, save produce frock cost；In addition, owing to present invention process can carry out initial alignment to raw material bar by the locating piece of operation owner's arm, make the registration of raw material bar during whole sub-material pulling base, pull out base especially for variable cross-section sub-material, it can be ensured that base precision.
Accompanying drawing explanation
Fig. 1 is the sub-material pulling forging schematic diagram of the numerical control open die forging sub-material pulling blank-making technology of blade forging of the present invention；
Fig. 2 be blade forging of the present invention numerical control open die forging sub-material pulling blank-making technology in the schematic diagram of servo-actuated distance in numerical control program；
Fig. 3 is the blade blank schematic diagram of embodiment of the present invention processing；
Fig. 4 is that the A-A of Fig. 3 is to generalized section；
Fig. 5 is that the B-B of Fig. 3 is to generalized section；
Fig. 6 is the schematic diagram of molding anvil block in the embodiment of the present invention；
Fig. 7 is the sub-material pulling base work step figure of embodiment of the present invention blade forging.
Detailed description of the invention
nullUse three-dimensional software design blank sub-material each work step figure and calculate the compact dimensions at the variant position of blank，Compact dimensions numerical programming program according to each work step figure and the variant position of blank，It is transported to operation machine jaw 1 after being heated by raw material bar，Transfer on molding anvil block after raw material bar 2 being entered the location of initial position by operation machine jaw 1 and is clamped，Wherein molding anvil block includes in molding anvil block 4 under anvil block 3 and molding，Anvil block 3 in molding、Under molding, anvil block 4 is provided with forming surface 5 all in accordance with the compact dimensions of blank、6，See Fig. 1，Raw material bar 2 is positioned under molding on anvil block 4，In molding, anvil block 3 is connected with the tup of numerical control quick forging machine，Numerical control program controls operation machine and realizes the lifting to raw material billet position、Rotate、Walking，The numerical control quick forging machine tup of numerical control program control simultaneously drives anvil block 3 in molding repeatedly to impact raw material bar and makes anvil block 3 in molding、Under molding, anvil block 4 directly carries out sub-material and pulling base to raw material bar 2；Operation machine jaw 1 carries out the location of initial position by the locating piece 8 arranged on jaw principal arm 7 to raw material bar 2.
Numerical control program is determined by the depressing position of numerical control quick forging machine tup, backhaul distance and number of blows and to the impact repeatedly of described raw material bar thus realizes the sub-material pulling molding of blank to control anvil block in molding；
Depressing position refers to that anvil block 3 in molding hits to distance between anvil block 4 during minimum point and under molding；Backhaul distance refers to that anvil block 3 backhaul in molding is to distance between anvil block 4 during peak and under molding；Number of blows refers to that numerical control quick forging machine tup controls anvil block 1 in molding and impacts the number of times of raw material bar 2；
Numerical control program is determined by the positional information of operation machine jaw to control the lifting of the position of raw material bar, to rotate and walking, and the positional information of operation machine jaw 1 includes the walking original position of operation machine jaw, walking stepping, start angle, the anglec of rotation, lifting position and servo-actuated distance；
Walking stepping is the operation machine jaw 1 travel distance relative to walking original position；The anglec of rotation is the operation machine jaw 1 anglec of rotation size relative to start angle；Lifting position is the operation machine jaw 1 upper and lower position relative to the benchmark of operation machine；Servo-actuated distance is raw material bar 2 deviation of raw material bar 1 center before and after being impacted by molding anvil block, seeing Fig. 2, in Fig. 2, L1 is the height before raw material bar 2 is impacted by molding anvil block, L2 is the height after raw material bar 2 is impacted by molding anvil block, and L3 is servo-actuated distance.
nullAs a example by sub-material by a kind of blade forging 10 shown in Fig. 3 pulls out base below，Specifically describe present invention process implementation process: shown in Fig. 3 blade forging，It is by leaf root part 11、Blade portion 12、Integral shroud part 13 and technique lug part 14 form，Wherein it is provided with boss structure 15 in blade portion central authorities，And the octagonal structure that blade portion 121 is cross section gradual change between boss structure 15 and leaf root part 11，See Fig. 4，At the leaf root part of blade forging and the switching of blade portion、At the switching of blade portion and boss structure、It is respectively round-corner transition at the switching of blade portion and integral shroud part and at the switching of integral shroud part and technique lug part，Corresponding molding anvil block is made according to each fillet size，In the present embodiment, fillet size includes R80 and R50，Therefore in molding, under anvil block 5 and molding, anvil block 6 is equipped with and R80、The forming surface that R50 matches，See Fig. 5；nullThe three-dimensionally shaped software of UG is used to design sub-material base work step figure according to the compact dimensions of blade forging，See Fig. 6，Blank compact dimensions numerical programming program according to each work step，Determine each work step numerical control quick forging machine tup depressing position、Backhaul distance and number of blows and operation machine jaw walking original position、Walking stepping、Start angle、The anglec of rotation、Lifting position and servo-actuated distance，Raw material round bar is transferred under molding on anvil block by after operating the clamping of machine jaw initial alignment，In molding, anvil block is connected with numerical control quick forging machine tup，Numerical control program controls tup and drives anvil block in molding repeatedly to impact round bar according to the tup action data of each work step、Operation machine jaw clamps the round bar positional information according to each work step under the control of numerical control program and completes lifting simultaneously、Rotate、Walking，It is finally completed sub-material pulling and shapes base.
Claims (4)
- null1. the numerical control open die forging sub-material pulling blank-making technology of a blade forging，It is characterized in that: use three-dimensional software design blank sub-material each work step figure and calculate the compact dimensions at the variant position of described blank，Compact dimensions numerical programming program according to described each work step figure and the variant position of described blank，It is transported to operation machine jaw after being heated by raw material bar，Transfer on molding anvil block after described raw material bar being entered the location of initial position by described operation machine jaw and is clamped，Described molding anvil block is provided with sub-material forming surface，Described numerical control program controls described operation machine and realizes the lifting to raw material billet position、Rotate、Walking，The most described numerical control program control numerical control quick forging machine tup described molding anvil block of drive repeatedly impacts described raw material bar and makes the sub-material forming surface of described molding anvil block that described raw material bar directly carry out sub-material and pulling base；Described molding anvil block includes in molding anvil block under anvil block and molding, and in described molding, under anvil block, molding, anvil block is provided with forming surface according to the compact dimensions of described blank respectively, and in described molding, anvil block is connected with the tup of described numerical control quick forging machine；Described numerical control program is determined by depressing position, backhaul distance and the number of blows of described numerical control quick forging machine tup and to the impact repeatedly of described raw material bar thus realizes the sub-material pulling molding of blank to control anvil block in described molding；Described numerical control program is determined by the positional information of described operation machine jaw to control the lifting of the position of described raw material bar, to rotate and walking, and the positional information of described operation machine jaw includes the walking original position of described operation machine jaw, walking stepping, start angle, the anglec of rotation, lifting position and servo-actuated distance.
- The numerical control open die forging sub-material pulling blank-making technology of a kind of blade forging the most according to claim 1, it is characterised in that: described operation machine jaw carries out the location of initial position by the locating piece of setting on jaw principal arm to described raw material bar.
- The numerical control open die forging sub-material pulling blank-making technology of a kind of blade forging the most according to claim 1, it is characterised in that: described depressing position refers to that anvil block in described molding hits to distance between anvil block during minimum point and under described molding；Described backhaul distance refers to that anvil block backhaul in described molding is to distance between anvil block during peak and under described molding；Described number of blows refers to that described numerical control quick forging machine tup controls anvil block in described molding and impacts the number of times of described raw material bar.
- The numerical control open die forging sub-material pulling blank-making technology of a kind of blade forging the most according to claim 1, it is characterised in that: described walking stepping is a described operation machine jaw travel distance relative to described walking original position；The described anglec of rotation is a described operation machine jaw anglec of rotation size relative to described start angle；Described lifting position is the described operation machine jaw upper and lower position relative to the benchmark of described operation machine；Described servo-actuated distance is described raw material bar deviation of described raw material bar center before and after being impacted by described molding anvil block.
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| CN201410820961.7A CN104550588B (en) | 2014-12-26 | 2014-12-26 | A kind of numerical control open die forging sub-material pulling blank-making technology of blade forging |
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| CN201410820961.7A CN104550588B (en) | 2014-12-26 | 2014-12-26 | A kind of numerical control open die forging sub-material pulling blank-making technology of blade forging |
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| CN104550588B true CN104550588B (en) | 2016-10-05 |
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| JPS60247432A (en) * | 1984-05-23 | 1985-12-07 | Daido Steel Co Ltd | Production of connecting rod |
| CN1048994A (en) * | 1989-10-18 | 1991-02-06 | 航空工业部红原锻铸厂 | Large-size steam turbine titanium alloy linear leaf forging and device |
| RU2291755C2 (en) * | 2005-01-28 | 2007-01-20 | Открытое Акционерное Общество "Тяжпрессмаш" | Sized forged pieces producing method and tool for performing the same |
| CN102836946B (en) * | 2012-09-11 | 2014-11-05 | 四川豪特石油设备有限公司 | Roll forging forming process for last stage of moving blade of 600MW unit steam turbine |
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Inventor after: Wang Zhiping Inventor after: Xiang Jinyuan Inventor after: Pan Zexin Inventor after: Jin Zhengang Inventor after: Mo Jianqiang Inventor after: Kuang Yiqiang Inventor before: Wang Zhiping Inventor before: Xiang Jinyuan Inventor before: Pan Zexin Inventor before: Jin Zhengang Inventor before: Mo Jianqiang |
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