CN109304383A - A kind of school circle method of large aluminum alloy ring - Google Patents
A kind of school circle method of large aluminum alloy ring Download PDFInfo
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- CN109304383A CN109304383A CN201811437044.5A CN201811437044A CN109304383A CN 109304383 A CN109304383 A CN 109304383A CN 201811437044 A CN201811437044 A CN 201811437044A CN 109304383 A CN109304383 A CN 109304383A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
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Abstract
The invention discloses a kind of school of large aluminum alloy ring circle methods, it include: the outer circumference for measuring aluminium alloy rings, calculating acquisition N etc. by standard round outer diameter divides standard round corresponding every segment standard arc length, by standard arc length by aluminium alloy rings domain N equal part, and marks Along ent；On the roller bed that aluminium alloy rings are sling to and are placed in veneer reeling machine；It determines the segmentation arc length of rolling volume school circle, and obtains the standard chord length of standard round corresponding segments arc length, segmentation arc length is the integral multiple of standard arc length, and aluminium alloy rings are divided into multiple segmental arcs by Along ent and according to segmentation arc length；The corresponding actual measurement chord length of each segmental arc is measured, chord length and standard chord length are relatively respectively surveyed, segmentation is carried out to each segmental arc that actual measurement chord length is greater than standard chord length and rolls volume school circle.The present invention, using existing large-scale veneer reeling machine, only puts into few tooling in the case where large aluminum alloy ring output is few, can be achieved with school circle after the quenching of aluminium alloy rings, has saved the huge equipment Meteorological of shape expanding machine.
Description
Technical field
The present invention relates to aluminum alloy processing technology fields, more specifically to a kind of school circle of large aluminum alloy ring
Method.
Background technique
Heat treatment can reinforced aluminium alloy material is obtained by solution hardening and timeliness needed for tissue and performance, aluminium alloy system
Part needs Putting into water rapidly to quench after high temperature solid solution, will lead to product because product inhomogeneous cooling is even in quenching and generates quenching distortion,
Inhomogeneous cooling even increase when large aluminum alloy product quenches, quenching distortion is also more serious, therefore large aluminum alloy product quenches
The control of deformation and school shape are that technology must solve the problems, such as in production.
It is that commonly simple school sired results dress with mandril 03 plus jack 02 is supported on aluminum alloy ring for a kind of ring shown in Fig. 1
01 minimum diameter position of part, the diameter that 01 direction of ring is enabled aluminum alloy to by adjusting jack 02 becomes larger, to reach
The purpose of school circle.Ring internal stress is small before aluminium alloy rings 01 are heat-treated can be used this kind of method；But ring is remaining after solution hardening
Stress is larger, should not use this kind of method school circle.
The cold deformation of large aluminum alloy ring, the school optimal process of circle are bulgings, can be real by dedicated shape expanding machine
The existing uniform cold deformation of ring, ring circularity are can be controlled within 5mm.But the shape expanding machine of largest domestic can meet the swollen of 4m ring
Shape for the shape expanding machine that the large rings such as 10m grades of rings are not adapted both at home and abroad at present, and designs one and is suitable for 10m
The shape expanding machine of the large rings such as grade ring is difficult, and manufacturing expense is also quite high.
In conclusion the problems such as school circle for how efficiently solving large aluminum alloy ring is difficult, at high cost, is current sheet
Field technical staff's problem to be solved.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of school of large aluminum alloy ring circle method, school circle method
School circle difficulty, the problem at high cost of large aluminum alloy ring can be efficiently solved.
In order to achieve the above object, the invention provides the following technical scheme:
A kind of school circle method of large aluminum alloy ring, comprising:
The outer circumference for measuring aluminium alloy rings, determines the corresponding standard round outer diameter of the outer circumference, by the standard
Circle outer diameter calculates acquisition N etc. and divides standard round corresponding every segment standard arc length, by the standard arc length that the aluminium alloy rings are whole
Ring N equal part, and mark Along ent, wherein N is the positive integer more than or equal to 3；
On the roller bed that aluminium alloy rings are sling to and are placed in veneer reeling machine, in the upper roller of the veneer reeling machine or lower roll, right
It answers and is set with interior limit baffle ring and outer limit baffle ring inside and outside the aluminium alloy rings, and in the aluminium alloy rings
The left and right sides is installed by support frame；
It determines the segmentation arc length of rolling volume school circle, and obtains the standard chord length that the standard round corresponds to the segmentation arc length, institute
The integral multiple that segmentation arc length is the standard arc length is stated, by the Along ent and according to the segmentation arc length by the aluminium alloy
Ring is divided into multiple segmental arcs；
The corresponding actual measurement chord length of each segmental arc, more each actual measurement chord length and the standard chord length are measured, to described
Each segmental arc that actual measurement chord length is greater than the standard chord length carries out segmentation rolling volume school circle.
Preferably, in above-mentioned school circle method, two are contained per two adjacent segmental arcs in multiple segmental arcs
The identical Along ent.
Preferably, in above-mentioned school circle method, the N takes 6, and the segmentation arc length is twice of the standard arc length, and
It is described that the aluminium alloy rings are divided into multiple segmental arcs by the Along ent and according to the segmentation arc length, it specifically includes:
The aluminium alloy rings are divided into six segmental arcs by the Along ent and according to the segmentation arc length.
Preferably, described to measure the corresponding actual measurement chord length of each segmental arc, more each actual measurement in above-mentioned school circle method
Chord length and the standard chord length carry out segmentation rolling volume school circle, tool to each segmental arc that the actual measurement chord length is greater than the standard chord length
Body includes:
The corresponding actual measurement chord length of each segmental arc is measured, volume is rolled since surveying the maximum segmental arc of chord length, and working as should
When the difference of the actual measurement chord length of segmental arc and the standard chord length is within the scope of the first default allowable error, stop the rolling volume of the segmental arc
School circle；
The actual measurement chord length value of the remaining each segmental arc of measurement successively carries out the rolling volume school of next actual measurement maximum segmental arc of chord length
Circle, until stopping segmentation rolling volume when the maximum difference of the actual measurement chord length of each segmental arc is within the scope of the second default allowable error
School circle.
Preferably, in above-mentioned school circle method, the standard chord length for obtaining the standard round and corresponding to the segmentation arc length, tool
Body includes:
By map or calculate determine the standard round and it is described segmentation arc length standard circular arc consistent in length string
It is long, the chord length of the standard circular arc is stayed into chord length increasing value caused by deformation by gravity factor with the aluminium alloy rings and is added
As the standard chord length.
Preferably, in above-mentioned school circle method, during school is full, the axial line and institute in the aluminium alloy rings are kept
The upper roller center line of veneer reeling machine is stated in same vertical plane.
Preferably, in above-mentioned school circle method, support frame as described above includes supportive body and is installed on the supportive body top
Gear wheel, the left and right sides in the aluminium alloy rings installs support frame, specifically includes:
Support frame is installed in the left and right sides of the aluminium alloy rings, makes the outer circle of the gear wheel Yu the aluminium alloy rings
Face offsets, and by the gear wheel and the upper roller levelling.
Preferably, described to sling aluminium alloy rings in above-mentioned school circle method, it specifically includes:
The aluminium alloy rings are slidably mounted on suspender, the suspender slings the aluminium alloy rings.
Preferably, in above-mentioned school circle method, more each actual measurement chord length and the standard chord length, to the actual measurement
Each segmental arc that chord length is greater than the standard chord length carries out segmentation rolling volume school circle, specifically includes:
Full circle pre-roll is first carried out, the entire aluminium alloy rings are rolled at a slow speed the first preset quantity of volume on the veneer reeling machine
Whole circle；Then more each actual measurement chord length and the standard chord length are greater than each of the standard chord length to the actual measurement chord length
Segmental arc carries out segmentation rolling volume school circle；It is segmented rolling volume school circle and carries out full circle shaping again later, by the entire aluminium alloy rings in institute
State the rolling volume whole circle shaping of the second preset quantity at a slow speed on veneer reeling machine.
Preferably, in above-mentioned school circle method, on the roller bed that aluminium alloy rings are sling and are placed in veneer reeling machine before,
Further include:
Selection can carry out the aluminium alloy rings to roll up curved veneer reeling machine, and check the upper roller and lower roll of the veneer reeling machine
Center meets depth of parallelism requirement, and roll surface meets surface requirements.
Using the school circle method of large aluminum alloy ring provided by the invention, first by aluminium alloy rings domain equal part, and roll
The segmentation arc length for rolling up school circle, then measures the corresponding actual measurement chord length of each segmental arc, chord length and standard chord length is relatively respectively surveyed, to actual measurement
Each segmental arc that chord length is greater than standard chord length carries out segmentation rolling volume school circle, and the segmental arc that actual measurement chord length is less than or equal to standard chord length does not need
Rolling volume school circle.By the way that the domain is pressed equal arc length, rolls volume school circle repeatedly to equal part segmental arc, every section of chord length is made gradually to approach standard round
Chord length, to reach school circle purpose.Since the large aluminum alloys ring school such as 10m grades current circle needs the large-scale shape expanding machine such as 10m, state
The shape expanding machine of one 10m ring of interior design is difficult, and manufacturing expense is estimated to be up to 60,000,000 yuan or more.The present invention exists
In the case that 10m grades of large aluminum alloy ring outputs are few, using existing large-scale veneer reeling machine, few tooling is only put into, just
School is round after being able to achieve the quenching of aluminium alloy rings, has saved the huge equipment Meteorological of shape expanding machine.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is that commonly simple school sired results fills ring in the prior art；
Fig. 2 is the school circle schematic diagram of one specific embodiment of the present invention；
The position Fig. 3 aluminium alloy rings are a kind of etc. to divide schematic diagram；
Fig. 4 is the segmental arc schematic diagram for needing to roll volume school circle.
It is marked in attached drawing as follows:
Aluminium alloy rings 01, jack 02, mandril 03；
Aluminium alloy rings 1, upper roller 2, lower roll 3, suspender 4, support frame 5, interior limit baffle ring 6, outer limit baffle ring 7, gear wheel 51；
Survey chord length L1；Standard chord length L2.
Specific embodiment
The embodiment of the invention discloses a kind of school of large aluminum alloy ring circle methods, in order to large aluminum alloy ring
School circle reduces school circle cost.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 2-Fig. 4 is please referred to, Fig. 2 is the school circle schematic diagram of one specific embodiment of the present invention；The position Fig. 3 aluminium alloy rings one
Kind etc. divides schematic diagram；Fig. 4 is the segmental arc schematic diagram for needing to roll volume school circle.
In a specific embodiment, the school circle method of large aluminum alloy ring provided by the invention, includes the next steps:
S1: measurement aluminium alloy rings 1 outer circumference, determine the corresponding standard round outer diameter of outer circumference, by standard round outside
Diameter calculates acquisition N etc. and divides standard round corresponding every segment standard arc length, by standard arc length by 1 domain N equal part of aluminium alloy rings, and marks
Remember Along ent, wherein N is the positive integer more than or equal to 3.
Firstly, the outer circumference of measurement large aluminum alloy ring 1, it should be noted that the large size mentioned in the application refers to
10 grades or more of aluminium alloy rings 1.Such as aluminium alloy rings 1 are super-huge aluminium alloy needed for 10m grades of heavy launchers
Ring forging, material be 2219 heat treatment can reinforced aluminium alloy, ring using ingot casting forging base after looping mill rolling shape, ring outer diameter φ
9500mm~φ 9620mm, wall thickness 120mm~160mm, 600~700mm of height.Below with the aluminium alloy rings 1 of following specifications
For be illustrated: the 10m exemplar ring of standard round outer diameter φ 9600mm, wall thickness 150mm, height 670mm.
Since 1 circularity of aluminium alloy rings is irregular, thus need to measure the entire outer circumference of aluminium alloy rings 1, then calculate
1 nominal outer diameter of aluminium alloy rings out.Such as: measurement ring outer circumference is 30159mm, then the corresponding mark of aluminium alloy rings 1
Director circle outer diameter is φ 9600mm.Aluminium alloy rings 1 are subjected to N equal part as needed, N is the positive integer more than or equal to 3, such as 3
Equal part, 6 equal parts, 9 etc. point etc..Illustrate by taking 6 equal parts as an example in following each embodiments, is then calculated by standard round outer diameter and obtain 6 etc.
The corresponding every segment standard arc length of minute mark director circle is 5026.5mm.
According to standard arc length, Along ent label is carried out by 1 domain of aluminium alloy rings, six equal part, and in equal part end face, specifically
Can position markers be stamped with steel seal respectively: A, B, C, D, E, F, as shown in Figure 3.
S2: on the roller bed for aluminium alloy rings 1 being sling and being placed in veneer reeling machine, in the upper roller 2 of veneer reeling machine or lower roll 3,
It is set with interior limit baffle ring 6 and outer limit baffle ring 7 inside and outside corresponding aluminium alloy rings 1, and on a left side for aluminium alloy rings 1
Right two sides are installed by support frame 5.
It should be noted that the erection sequence of interior limit baffle ring 6 and outer limit baffle ring 7 can not do specific limit in the step
It is fixed.Preferably, it is installed in the following order: in the upper roller 2 of veneer reeling machine with being limited in the upper roller 2 of veneer reeling machine
Limit baffle ring 6 in installation bending machine roller → lifting of aluminium alloy rings 1 is placed on roller bed → is installed in the upper roller 2 of veneer reeling machine
Outer 7 → installation of limit baffle ring support frame 5 → adjustment aluminium alloy rings 1, equipment, tooling position, confirmation meet operating condition.
S3: it determines the segmentation arc length of rolling volume school circle, and obtains the standard chord length L2 of standard round corresponding segments arc length, be segmented arc
Aluminium alloy rings 1 are divided into multiple segmental arcs by Along ent and according to segmentation arc length by the integral multiple of a length of standard arc length.
Determine the segmentation arc length of rolling volume school circle, the domain presses six equal part of arc length, position of halving A, B, C, D, E, F；Preferably
Determine every section of roll bending school arc section, i.e., segmentation arc length is one third standard round arc length, i.e., ABC, BCD in figure, CDE, DEF,
Totally six sections of arc length, exemplar ring section arc length are 10053mm by EFA, FAB.Namely using two times of standard arc length as segmentation arc length, and
Aluminium alloy rings 1 are divided into multiple segmental arcs according to Along ent and segmentation arc length.
After the completion of division, the chord length value of standard round corresponding segments arc length is determined by mapping or calculating, in the embodiment,
The chord length value of corresponding 6 segmental arcs of exemplar ring standard round is 8053.6mm.
S4: measuring the corresponding actual measurement chord length L1 of each segmental arc, relatively respectively actual measurement chord length L1 and standard chord length L2, to actual measurement chord length
Each segmental arc of the L1 greater than standard chord length L2 carries out segmentation rolling volume school circle.
According to segmental arc division result, the actual measurement chord length L1 of each segmental arc is measured respectively, it should be noted that measure each arc
It is not limited between the actual measurement chord length L1 of section and two steps of standard chord length L2 for obtaining standard round corresponding segments arc length successively
Relationship can first measure actual measurement chord length L1 as needed and obtain standard chord length L2 again.Actual measurement chord length L1 preferably uses internal diameter chord length value.
According to the actual measurement chord length L1 that measurement obtains, it is compared with standard chord length L2, actual measurement chord length L1 is greater than standard chord length L2's
Segmental arc needs rolling to roll up school circle (such as AC actual measurement chord length L1 is greater than standard chord length L2, ABC segmental arc needs rolling volume in Fig. 4), actual measurement string
Segmental arc of the long L1 less than or equal to standard chord length L2 does not need rolling volume school circle.
Using the school circle method of large aluminum alloy ring provided by the invention, by the way that the domain is pressed equal arc length, to equal part
Segmental arc rolls volume school circle repeatedly, and every section of chord length is made gradually to approach standard round chord length, to reach school circle purpose.Due to 10m grades current
Equal 1 school of large aluminum alloys ring circle needs the large-scale shape expanding machine such as 10m, and the shape expanding machine of one 10m ring of domestic design is difficult,
Its manufacturing expense is estimated to be up to 60,000,000 yuan or more.The present invention situation few in 10m grades of 1 outputs of large aluminum alloy ring
Under, using existing large-scale three rolls plate bending machine, few tooling is only put into, can be achieved with school circle after the quenching of aluminium alloy rings 1,
The huge equipment Meteorological of shape expanding machine is saved.
Preferably, two identical Along ents are contained per two adjacent segmental arcs in multiple segmental arcs.As above-mentioned, with
ABC, BCD, CDE, DEF, EFA, FAB are segmented, then include two Along ents of B and C in ABC and BCD segmental arc.Namely N
It takes 6 and when to be segmented arc length be twice of standard arc length, then divides aluminium alloy rings 1 by Along ent and according to segmentation arc length
It at multiple segmental arcs, specifically includes: aluminium alloy rings 1 being divided into six segmental arcs, every phase by Along ent and according to segmentation arc length
Two adjacent segmental arcs include the intersection that arc length is standard arc length.So segmentation rolls up school bowlder in rolling, and adjacent each segmental arc has friendship
Collection, thus between segmental arc transition it is more preferable, be more advantageous to reduce aluminium alloy rings 1 out-of-roundness.
In the above embodiments, relatively respectively actual measurement chord length L1 and standard chord length L2 is greater than standard string to actual measurement chord length L1
Each segmental arc of long L2 carries out segmentation rolling volume school circle, specifically includes:
The corresponding actual measurement chord length L1 of each segmental arc is measured, volume is rolled since surveying the maximum segmental arc of chord length L1, and working as should
When the difference of the actual measurement chord length L1 and standard chord length L2 of segmental arc are within the scope of the first default allowable error, stop the rolling volume of the segmental arc
School circle；
The actual measurement chord length L1 value of the remaining each segmental arc of measurement successively carries out the rolling volume of next actual measurement maximum segmental arc of chord length L1
School circle, until stopping segmentation rolling volume when the maximum difference of the actual measurement chord length L1 of each segmental arc is within the scope of the second default allowable error
School circle.
Namely using segmentation, school circle method is rolled up in rolling repeatedly.It is rolled maximum chord length segmental arc since actual measurement chord length L1 first
Volume, the first default allowable error range is specifically as follows ± 5mm, then when surveying chord length L1 ≈ standard chord length L2 ± 5mm, stops
The rolling of the segmental arc is rolled up；The actual measurement chord length L1 of the remaining other segmental arcs of then measurement is successively carried out maximum in next actual measurement chord length L1
The rolling volume school circle of chord length segmental arc；It is intended to measure the actual measurement chord length L1 of remaining segmental arc after the completion of rolling volume every time, rolling volume segmental arc begins every time
It is eventually ring maximum chord length section.Second default allowable error range is specifically as follows less than 10mm, then when AC, BD, CE, DF, EA,
This 6 sections actual measurement chord length L1 maximum differences of FB stop segmentation rolling volume in 10mm or less.
In the above embodiments, the standard chord length L2 for obtaining standard round corresponding segments arc length, specifically includes:
By map or calculate determine standard round and be segmented arc length standard circular arc consistent in length chord length, by standard
The chord length of circular arc is stayed chord length increasing value caused by deformation by gravity factor with aluminium alloy rings 1 and is added as standard chord length L2.
Deformation is stayed due to being there is entirety by gravity when ring is upright, as shown in figure 4, through in the position actual measurement AC
The practical chord length of diameter is by increasing~40mm, then the aluminium alloy rings 1 of the above-mentioned specification of the correspondence, rolling lick Cheng Zhongbiao director circle chord length reality
Value ≈ 8093mm.Namely standard chord length L2 uses the chord length with the standard circular arc consistent in length of segmentation arc length, increases with chord length
The sum of long value, the range of specific chord length increasing value are 35-45mm, preferably 40mm.Certainly, according to the specific of aluminium alloy rings 1
The specific size of specification, the chord length increasing value can be determined by modes such as experimental tests accordingly.
Further, in the above embodiments, during school is full, keep aluminium alloy rings 1 in axial line and
2 center line of upper roller of veneer reeling machine is in same vertical plane.It can specifically guarantee aluminium alloy rings 1 by adjusting position during installation
In axial line and veneer reeling machine 2 center line of upper roller in same vertical plane.Specifically, interior limit baffle ring 6 and outer limit baffle ring 7
Spacing=+ 4~6mm of ring height；Sliding suspender 4 is hung in traveling crane gib head always, is in partly about during the circle of school to ring
Pencil state；The suitable distance for adjusting 2 support frames 5 makes ring that can be stuck in two support frames 5 and squeeze ring and makes
At ring positional shift；By 7 levelling of limit baffle ring 6 and outer limit baffle ring in support frame 5 and veneer reeling machine, deviation < 2mm,
It is always positioned at 2 center line of upper roller of ring axial line and veneer reeling machine in same vertical plane.
Further, support frame 5 includes supportive body and the gear wheel 51 for being installed on supportive body top, then in aluminium alloy
Support frame 5 is installed in the left and right sides of ring 1, specifically includes:
Support frame 5 is installed in the left and right sides of aluminium alloy rings 1, gear wheel 51 and the periphery of aluminium alloy rings 1 is made to offset,
And by gear wheel 51 and 2 levelling of upper roller.Thus, the suitable distance of 2 horizontal shores 5 is adjusted when installation, block ring can
In gear wheel 51, and ring will not be squeezed and cause ring positional shift；By gear wheel 51 and 2 limit baffle ring of upper roller of press brake, 6 school water
Flat, deviation < 2mm is always positioned at 2 center line of upper roller of ring axial line and veneer reeling machine in same vertical plane.Specific branch
Support main body may include horizontal supporting plate and the inclined shore bar that is fixed on horizontal supporting plate, inclined shore bar with it is horizontally-supported
Stiffener plate is fixedly connected between plate, the top of inclined shore bar is equipped with gear wheel 51.
Specifically, aluminium alloy rings 1 are sling, specifically include:
Aluminium alloy rings 1 are slidably mounted on suspender 4, suspender 4 slings aluminium alloy rings 1.Namely suspender 4 is to slide
Dynamic suspender 4, it is thus possible to while playing a supporting role to aluminium alloy rings 1, convenient for the rotation of aluminium alloy rings 1, and in school
Aluminium alloy rings 1 are constrained during circle.Conventional arrangement of the structure of specific sliding suspender 4 during refer to the prior art,
It is not especially limited herein.
In the above embodiments, relatively respectively actual measurement chord length L1 and standard chord length L2 is greater than standard string to actual measurement chord length L1
Each segmental arc of long L2 carries out segmentation rolling volume school circle, specifically includes:
Full circle pre-roll is first carried out, the whole circle of the first preset quantity is rolled up in rolling at a slow speed on veneer reeling machine by entire aluminium alloy rings 1；And
Relatively respectively actual measurement chord length L1 and standard chord length L2 afterwards, each segmental arc to actual measurement chord length L1 greater than standard chord length L2 carry out segmentation rolling volume
School circle；Full circle shaping is carried out again after the circle of segmentation rolling volume school, and by entire aluminium alloy rings 1, rolling volume second is pre- at a slow speed on veneer reeling machine
If the whole circle shaping of quantity.The specific whole circle of first preset quantity can be 2 circles, and the whole circle of the second preset quantity can enclose for 4-5.Pass through
First full circle pre-roll, re-segmenting rolling volume, last full circle shaping can further promote school circle effect.
Further, before aluminium alloy rings 1 being sling and being placed on the roller bed of veneer reeling machine, further includes:
Selection can carry out aluminium alloy rings 1 to roll up curved veneer reeling machine, and check 3 center of upper roller 2 and lower roll of veneer reeling machine
Meet depth of parallelism requirement, roll surface meets surface requirements.The selection of veneer reeling machine equipment and inspection are namely first carried out, specifically, school circle
The parameter of veneer reeling machine meets the corresponding large aluminum alloy rings 1 such as 10m grades and is smoothly put into veneer reeling machine and implements to roll up curved condition.More than
For the text scale aluminium alloy ring 1, select the large-scale symmetrical vertical bendin sheet machine of three rollers of 80 × 3200mm for school circle equipment, thereon
The vertical maximum spacing 210mm of 2 diameter 770mm of roller, 3 diameter 460mm of lower roll, upper roller 2 and lower roll 3 (outer diameter).
Check that confirmation equipment is in serviceable condition before the circle of school, it is desirable that 3 center parallel of upper roller 2 and lower roll (depth of parallelism≤
0.1mm), roller surface it is smooth, it is smooth, without pit and protrusion etc..
To sum up, the school circle method of large aluminum alloy ring 1 provided by the present application, preferably through following steps: veneer reeling machine
Equipment selection and inspection → dedicated school sired results true up standby → preceding size detection → aluminium alloy rings 1 six of 1 school of aluminium alloy rings circle etc.
Point and the installation of mark → school sired results dress, aluminium alloy rings 1 the positioning → rolling volume school circle and measure → of veneer reeling machine discharge tooling,
Aluminium alloy rings 1 hang out size detection after the circle of 1 school of veneer reeling machine → aluminium alloy rings.The domain is namely pressed into equal arc length, is passed through
It rolls volume school circle repeatedly to equal part segmental arc, every section of chord length is made gradually to approach standard round chord length, to reach school circle purpose.At 10m grades
In the case that equal 1 output of aluminium alloy rings is few, using existing large-scale three rolls plate bending machine, few tooling is only put into, energy
School is round after realizing the quenching of ring, has saved the huge equipment Meteorological of shape expanding machine.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of school circle method of large aluminum alloy ring characterized by comprising
Measure aluminium alloy rings outer circumference, determine the corresponding standard round outer diameter of the outer circumference, by the standard round outside
Diameter, which calculates, to be obtained N etc. and divides standard round corresponding every segment standard arc length, by the standard arc length by described aluminium alloy rings domain N etc.
Point, and marking Along ent, wherein N is the positive integer more than or equal to 3；
On the roller bed that aluminium alloy rings are sling to and are placed in veneer reeling machine, in the upper roller of the veneer reeling machine or lower roll, corresponding institute
It states and is set with interior limit baffle ring and outer limit baffle ring inside and outside aluminium alloy rings, and in the left and right of the aluminium alloy rings
Two sides are installed by support frame；
It determines the segmentation arc length of rolling volume school circle, and obtains the standard chord length that the standard round corresponds to the segmentation arc length, described point
Section arc length is the integral multiple of the standard arc length, by the Along ent and according to the segmentation arc length by the aluminium alloy rings
It is divided into multiple segmental arcs；
The corresponding actual measurement chord length of each segmental arc, more each actual measurement chord length and the standard chord length are measured, to the actual measurement
Each segmental arc that chord length is greater than the standard chord length carries out segmentation rolling volume school circle.
2. circle method in school according to claim 1, which is characterized in that per two adjacent arcs in multiple segmental arcs
Duan Jun contains two identical Along ents.
3. circle method in school according to claim 2, which is characterized in that the N takes 6, and the segmentation arc length is the mark
Twice of quasi- arc length, and it is described the aluminium alloy rings are divided by the Along ent and according to the segmentation arc length it is multiple
Segmental arc specifically includes:
The aluminium alloy rings are divided into six segmental arcs by the Along ent and according to the segmentation arc length.
4. circle method in school according to claim 1-3, which is characterized in that each segmental arc of measurement is corresponding
Chord length, more each actual measurement chord length and the standard chord length are surveyed, each of the standard chord length is greater than to the actual measurement chord length
Segmental arc carries out segmentation rolling volume school circle, specifically includes:
The corresponding actual measurement chord length of each segmental arc is measured, volume is rolled since surveying the maximum segmental arc of chord length, and work as the segmental arc
Actual measurement chord length and the standard chord length difference within the scope of the first default allowable error when, stop the segmental arc rolling volume school
Circle；
The actual measurement chord length value of the remaining each segmental arc of measurement successively carries out the rolling volume school circle of next actual measurement maximum segmental arc of chord length, directly
To each segmental arc actual measurement chord length maximum difference within the scope of the second default allowable error when, stop segmentation rolling volume school circle.
5. circle method in school according to claim 1-3, which is characterized in that the acquisition standard round corresponds to institute
The standard chord length for stating segmentation arc length, specifically includes:
By map or calculate determine the standard round and it is described segmentation arc length standard circular arc consistent in length chord length, will
The chord length of the standard circular arc is stayed chord length increasing value caused by deformation by gravity factor with the aluminium alloy rings and is added conduct
The standard chord length.
6. circle method in school according to claim 1-3, which is characterized in that during school is full, described in holding
The upper roller center line of axial line and the veneer reeling machine in aluminium alloy rings is in same vertical plane.
7. school according to claim 1-3 circle method, which is characterized in that support frame as described above include supportive body and
It is installed on the gear wheel on the supportive body top, support frame is installed in the left and right sides in the aluminium alloy rings, specific to wrap
It includes:
Support frame is installed in the left and right sides of the aluminium alloy rings, makes periphery phase of the gear wheel with the aluminium alloy rings
It supports, and by the gear wheel and the upper roller levelling.
8. circle method in school according to claim 7, which is characterized in that it is described to sling aluminium alloy rings, it specifically includes:
The aluminium alloy rings are slidably mounted on suspender, the suspender slings the aluminium alloy rings.
9. school according to claim 1-3 circle method, which is characterized in that more each actual measurement chord length and
The standard chord length carries out segmentation rolling volume school circle to each segmental arc that the actual measurement chord length is greater than the standard chord length, specifically includes:
Full circle pre-roll is first carried out, the first preset quantity of rolling volume is whole at a slow speed on the veneer reeling machine by the entire aluminium alloy rings
Circle；Then more each actual measurement chord length and the standard chord length are greater than each arc of the standard chord length to the actual measurement chord length
Duan Jinhang segmentation rolling volume school circle；It is segmented rolling volume school circle and carries out full circle shaping again later, by the entire aluminium alloy rings described
The rolling volume whole circle shaping of the second preset quantity at a slow speed on veneer reeling machine.
10. circle method in school according to claim 1-3, which is characterized in that described to sling aluminium alloy rings simultaneously
Before being placed on the roller bed of veneer reeling machine, further includes:
Selection can carry out the aluminium alloy rings to roll up curved veneer reeling machine, and check the upper roller and lower roller center of the veneer reeling machine
Meet depth of parallelism requirement, roll surface meets surface requirements.
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| CN201811437044.5A CN109304383B (en) | 2018-11-28 | 2018-11-28 | Roundness correction method for large aluminum alloy ring piece |
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| CN201811437044.5A CN109304383B (en) | 2018-11-28 | 2018-11-28 | Roundness correction method for large aluminum alloy ring piece |
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| CN109304383B CN109304383B (en) | 2020-03-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114713927A (en) * | 2022-04-19 | 2022-07-08 | 中国航发动力股份有限公司 | Method for controlling welding deformation of ring parts and brace rod type shape correction tool |
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| CN114713927A (en) * | 2022-04-19 | 2022-07-08 | 中国航发动力股份有限公司 | Method for controlling welding deformation of ring parts and brace rod type shape correction tool |
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| CN109304383B (en) | 2020-03-06 |
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