CN106238632B - The rolling forming method of H-shaped section ring parts - Google Patents

The rolling forming method of H-shaped section ring parts Download PDF

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Publication number
CN106238632B
CN106238632B CN201610659161.0A CN201610659161A CN106238632B CN 106238632 B CN106238632 B CN 106238632B CN 201610659161 A CN201610659161 A CN 201610659161A CN 106238632 B CN106238632 B CN 106238632B
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China
Prior art keywords
ring
rolling
shaped
cone roller
blank
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Expired - Fee Related
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CN201610659161.0A
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CN106238632A (en
Inventor
龚小涛
杨帆
耿佩
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Xian Aeronautical Polytechnic Institute
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Xian Aeronautical Polytechnic Institute
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Publication of CN106238632B publication Critical patent/CN106238632B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21HMAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00Making articles shaped as bodies of revolution
    • B21H1/06Making articles shaped as bodies of revolution rings of restricted axial length

Abstract

The rolling forming method of H-shaped section ring parts of the present invention is related to a kind of rolling forming method of ring forging, and in particular to the rolling forming method of H-shaped section ring parts, comprises the following steps:Rolling is than determining, the determination of ring blank size, ring rolling, upper and lower end face of the upper and lower cone roller respectively with ring blank is offseted, upper and lower cone roller is around own axis, and the upper and lower end face of spreading ring blank, annular boss, the fit depressions of the annular boss and H-shaped section ring parts are provided with upper and lower cone roller;The inwall of breast roll and ring blank offsets, and spreading ring blank, support roller offsets with ring blank outer wall, the present invention carries out rolling forming using the principle of constancy of volume during rolling to H-shaped section, and the machining for omitting the later stage removes material so that stock utilization is high, and product cost is low, because using roll milling forming, the fibr tissue formed during material forming is advantageous to the raising of material mechanical performance and combination property, product quality is high.

Description

The rolling forming method of H-shaped section ring parts
Technical field
The present invention relates to a kind of rolling forming method of ring forging, and in particular to the rolling forming side of H-shaped section ring parts Method.
Background technology
Recently as the continuous propulsion of science and technology, ring spreading technology achieves significant development, and ring spreading is Through the special-shaped ring that changes of section is developed into from traditional square-section ring.The special-shaped ring of axial cross section change, as H-shaped is cut Face ring part etc., it is widely used in Aero-Space, mechanical industry, the ring in H-shaped section has annular groove in its upper and lower surface, existing Method be that the ring of square-section is obtained by spreading, then process by subsequent mechanical to obtain the ring in all H-shaped sections. H-shaped section ring parts are obtained by existing method and are primarily present following defect, one side stock utilization is low, and cost is higher.By Need to remove material by follow-up machining in the rectangle ring that spreading is formed, substantial amounts of material is processed, product Stock utilization it is very low, simultaneously because being mostly your gold such as titanium alloy, high temperature alloy in the material used in the fields such as space flight and aviation Category, the waste of material add the cost of product.On the other hand the performance of product is reduced.Rectangle ring is formed during spreading Structure of fibrous tissue is advantageous to the raising of material mechanical performance and combination property, but passes through follow-up machining, spreading The fibre structure that stage is formed is deteriorated, and the mechanical property and combination property of ring reduce.The H-shaped abnormity ring operation of rolling In by multiple nonlinear process parameters coupling influence, and very tight is required to the radial and axial size and dimension of ring Lattice, therefore, in order to obtain high quality, high performance special-shaped ring, it is necessary to the blank dimension of careful design ring, to ring rolling The roll feed speed of process, velocity of rotation etc. must be strictly controlled, the accurate performance for controlling ring.
The content of the invention
In order to solve the above problems, the present invention provides a kind of stock utilization height, and product cost is low, the high H of product quality The rolling forming method of tee section ring.
The rolling forming method of H-shaped section ring parts of the present invention, comprises the following steps:
The first step, rolling choose the scope of rolling ratio according to the geomery of H-shaped section ring parts than determining,
,
Wherein D andExternal diameter before respectively external diameter and H-shaped ring rolling deform after the deformation of H-shaped ring rolling;
Second step, the determination of ring blank size, blank volume are:
Wherein:
D is external diameter after the deformation of H-shaped section ring parts rolling,
D is internal diameter after the deformation of H-shaped section ring parts rolling,
H is the height after the deformation of H-shaped section ring parts rolling,
H is the depth that H-shaped section ring parts rolling deforms rearward recess,
Central diameter after being deformed for H-shaped section ring parts rolling,
The width of rearward recess is deformed for H-shaped section ring parts rolling,
The angle of inwall and vertical plane after being deformed for H-shaped section ring parts rolling,
R is that H-shaped section ring parts rolling deforms rearward recess arc radius,
The angle of lower wall and vertical guide on rearward recess is deformed for H-shaped section ring parts rolling,
The height dimension of ring is constant before and after rolling, external diameter before the deformation of H-shaped ring rolling, the rolling of H-shaped ring Expand internal diameter before deforming
3rd step, ring rolling, upper and lower end face of the upper and lower cone roller respectively with ring blank is offseted, and upper and lower cone roller is equal Around own axis, and the upper and lower end face of spreading ring blank, annular boss, the convex annular are provided with upper and lower cone roller The fit depressions of platform and H-shaped section ring parts;The inwall of breast roll and ring blank offsets, and spreading ring blank, breast roll Around its axis rotation, support roller offsets with ring blank outer wall, and around own axis;Upper and lower cone roller H-shaped section ring parts The feed speed of breast roll and upper and lower cone roller in the rolling stage is four-stage:
Bite stage is rolled, breast roll feed speed increases linearly to 1mm/s, the feed speed of upper and lower cone roller by 0mm/s 0.25mm/s is increased linearly to by 0 mm/s;
Radial direction stable rolling stage, breast roll feed speed increase linearly to 2mm/s, the feeding of upper and lower cone roller by 1mm/s Velocity-stabilization is in 0.25mm/s;
In the axial stable rolling stage, breast roll feed speed is stable to be linearly reduced to 1mm/s, upper and lower cone roller feeding by 2mm/s Speed increases linearly to 0.5mm/s by 0.25mm/s;
Correct the full circle stage:Breast roll feed speed is stable stable in 0.5mm/s in 1mm/s, upper and lower cone roller feed speed;
The rotation of breast roll and upper and lower cone roller:
The operation of rolling, upper and lower conical stick rotate backward at the same speed, and the proportionate relationship of breast roll and upper and lower cone roller rotating speed is:
,
WhereinRespectively upper and lower cone roller and breast roll rotational angular velocity,Centered on roller external diameter,For it is upper, The central diameter of lower cone roller.
Preferably,Span be 2.5~3.0.
Preferably, two guide rollers are set outside blank ring, two guide rollers roll with the outer wall of blank ring to be connected, And two guide roller around its axis rotation.
Preferably, ring blank is aluminium alloy, titanium alloy, high temperature alloy, stainless steel, ring hair made of steel material Base.
The present invention carries out rolling forming using the principle of constancy of volume during rolling to H-shaped section, omits the machine in later stage Tool processing removes material so that stock utilization is high, and product cost is low, due to using roll milling forming, during material forming The fibr tissue of formation is advantageous to the raising of material mechanical performance and combination property, and product quality is high.
Brief description of the drawings
Fig. 1 is H-shaped section ring parts structural representation.
Fig. 2 is H-shaped section ring parts rolling front view.
Fig. 3 is H-shaped section ring parts rolling top view.
Reference:The upper cone rollers of 1-, cone roller under 2-, 3-H tee section rings, 4- breast rolls, 5- support rollers, 6- guide rollers.
Embodiment
The rolling forming method of H-shaped section ring parts of the present invention, comprises the following steps:
The first step, rolling choose the scope of rolling ratio according to the geomery of H-shaped section ring parts 3 than determining,
,
Wherein D andExternal diameter before respectively external diameter and H-shaped ring rolling deform after the deformation of H-shaped ring rolling;
Second step, the determination of ring blank size, blank volume are:
Wherein:
D is external diameter after the deformation of H-shaped section ring parts rolling,
D is internal diameter after the deformation of H-shaped section ring parts rolling,
H is the height after the deformation of H-shaped section ring parts rolling,
H is the depth that H-shaped section ring parts rolling deforms rearward recess,
Central diameter after being deformed for H-shaped section ring parts rolling,
The width of rearward recess is deformed for H-shaped section ring parts rolling,
The angle of inwall and vertical plane after being deformed for H-shaped section ring parts rolling,
R is that H-shaped section ring parts rolling deforms rearward recess arc radius,
The angle of lower wall and vertical guide on rearward recess is deformed for H-shaped section ring parts rolling,
The height dimension of ring is constant before and after rolling, external diameter before the deformation of H-shaped ring rolling, the rolling of H-shaped ring Expand internal diameter before deforming
3rd step, ring rolling, upper and lower 1,2 upper and lower end face respectively with ring blank of cone roller is offseted, and upper and lower cone Roller 1,2 is around own axis, and the upper and lower end face of spreading ring blank, and annular boss is provided with upper and lower cone roller 1,2, The fit depressions of the annular boss and H-shaped section ring parts 3;The inwall of breast roll 4 and ring blank offsets, and spreading ring Blank, breast roll 4 offset around its axis rotation, support roller 5 with ring blank outer wall, and around own axis;H-shaped section rings The feed speed of breast roll 4 and upper and lower cone roller 1,2 in the rolling stage of part 3 is four-stage:
Bite stage is rolled, the feed speed of breast roll 4 increases linearly to 1mm/s, the feeding of upper and lower cone roller 1,2 by 0mm/s Speed increases linearly to 0.25mm/s by 0 mm/s;
Radial direction stable rolling stage, the feed speed of breast roll 4 increase linearly to 2mm/s by 1mm/s, upper and lower cone roller 1,2 Feed speed is stable in 0.25mm/s;
In the axial stable rolling stage, the feed speed of breast roll 4 is stable to be linearly reduced to 1mm/s, upper and lower cone roller 1,2 by 2mm/s Feed speed increases linearly to 0.5mm/s by 0.25mm/s;
Correct the full circle stage:The feed speed of breast roll 4 is stable to exist in 1mm/s, upper and lower cone roller 1,2 feed speeds stabilization 0.5mm/s;
The rotation of breast roll 4 and upper and lower cone roller 1,2:The operation of rolling, upper and lower conical stick rotate backward at the same speed, breast roll with The proportionate relationship of upper and lower cone roller rotating speed is:
,
WhereinRespectively upper and lower cone roller 1,2 and the rotational angular velocity of breast roll 4,Centered on roller external diameter, For the central diameter of upper and lower cone roller 1,2.Span be 2.5~3.0.Two guide rollers 6 are set outside blank ring, and two lead Roll and be connected with the outer wall of blank ring to roller 6, and its rich axis rotation of two guide rollers 6.Ring blank is aluminium alloy, titanium Alloy, high temperature alloy, stainless steel, ring blank made of steel material.
So that the H-shaped section ring parts 3 shown in accompanying drawing 1 are embodied as an example, it is desirable to the size of H-shaped section ring parts 3 of rolling forming For:Ring outer diameter D=840mm, internal diameter d=760mm, ring height H=80mm, ring central diameterMm, H-shaped recess widthThe angle of mm, H-shaped groove height h=10mm, H-shaped inwall and vertical plane=5 °, groove arc radius R=2mm.
Determine rolling ratio:According to the H-shaped section rings geomery of 3 empirically determine rolling than scope,, in the specific implementation process of this example, take=2.6;
Determine ring blank size:According to the size of H-shaped section ring parts 3, rolling ratio and constancy of volume principle, square is determined Shape ring blank size, blank volume calculation formula are calculated according to the following formula:
The height dimension of ring is constant before and after rolling, determines blank height H=80mm, external diameter before the deformation of H-shaped ring rolling, internal diameter before the deformation of H-shaped ring rolling, the deformation of H-shaped ring rolling is calculated Preceding external diameterMm, internal diameter before the deformation of H-shaped ring rollingmm。
The rolling of ring:The feed speed of breast roll 4 and upper and lower cone roller 1,2 in the rolling stage of H-shaped section ring parts 3 For four-stage:
Bite stage is rolled, the feed speed of breast roll 4 increases linearly to 1mm/s, the feeding of upper and lower cone roller 1,2 by 0mm/s Speed increases linearly to 0.25mm/s by 0 mm/s;
Radial direction stable rolling stage, the feed speed of breast roll 4 increase linearly to 2mm/s by 1mm/s, upper and lower cone roller 1,2 Feed speed is stable in 0.25mm/s;
In the axial stable rolling stage, the feed speed of breast roll 4 is stable to be linearly reduced to 1mm/s, upper and lower cone roller 1,2 by 2mm/s Feed speed increases linearly to 0.5mm/s by 0.25mm/s;
The full circle stage is corrected, the feed speed of breast roll 4 is stable to exist in 1mm/s, upper and lower cone roller 1,2 feed speeds stabilization 0.5mm/s;
The rotation of breast roll 4 and upper and lower conical stick 1,2:The operation of rolling, upper and lower cone roller 1,2 rotate backward at the same speed, breast roll 4 It is with upper and lower cone roller 1, the proportionate relationship of 2 rotating speeds:, whereinRespectively upper and lower cone roller 1,2 and breast roll 4 rotational angular velocities, the external diameter of breast roll 4=450mm, upper and lower cone roller 1,2 central diameters=60mm.Breast roll 4 rotates clockwise, and turns Speed is 4.20rad/s, and upper cone roller 1 rotates clockwise, and rotating speed 31.50rad/s, lower cone roller 2 rotates counterclockwise, and rotating speed is 31.50rad/s.
The correction full circle stage of ring:The feed speed of breast roll 4 is stable stable in 1mm/s, upper and lower cone roller 1,2 feed speeds In 0.5mm/s.
Use a kind of above-mentioned H-shaped section ring parts 3 spreading method can complete to axial cross section for abnormity ring into Shape, the ring shaped by the invention have the characteristics that high mechanical properties, stock utilization are high, production cost is low.

Claims (4)

  1. A kind of 1. rolling forming method of H-shaped section ring parts, it is characterised in that comprise the following steps:
    The first step, rolling is than determining, according to H-shaped section ring parts(3)Geomery choose rolling ratio scope,
    ,
    Wherein D andExternal diameter before respectively external diameter and H-shaped ring rolling deform after the deformation of H-shaped ring rolling;
    Second step, the determination of ring blank size, blank volume are:
    Wherein:
    D is external diameter after the deformation of H-shaped ring rolling,
    D is internal diameter after the deformation of H-shaped ring rolling,
    H is the height after the deformation of H-shaped ring rolling,
    H is the depth that H-shaped ring rolling deforms rearward recess,
    Central diameter after being deformed for H-shaped ring rolling,
    The width of rearward recess is deformed for H-shaped ring rolling,
    The angle of inwall and vertical plane after being deformed for H-shaped ring rolling,
    R is that H-shaped ring rolling deforms rearward recess arc radius,
    The angle of lower wall and vertical guide on rearward recess is deformed for H-shaped ring rolling,
    The height dimension of ring is constant before and after rolling, external diameter before the deformation of H-shaped ring rolling, the deformation of H-shaped ring rolling Preceding internal diameter
    3rd step, ring rolling, by upper and lower cone roller(1、2)The upper and lower end face with ring blank offsets respectively, upper and lower cone roller(1、 2)Around own axis, and the upper and lower end face of spreading ring blank, upper and lower cone roller(1、2)On be provided with annular boss, The annular boss and H-shaped section ring parts(3)Fit depressions;Breast roll(4)Offseted with the inwall of ring blank, and spreading Ring blank, breast roll(4)Around its axis rotation, support roller(5)Offseted with ring blank outer wall, and around own axis; H-shaped section ring parts(3)The rolling stage in breast roll(4)With upper and lower cone roller(1、2)Feed speed be four-stage:
    Roll bite stage:Breast roll(4)Feed speed increases linearly to 1mm/s, upper and lower cone roller by 0mm/s(1、2)Feeding Speed increases to 0.25mm/s by 0 mm/s;
    The radial direction stable rolling stage:Breast roll(4)Feed speed increases linearly to 2mm/s, upper and lower cone roller by 1mm/s(1)、(2) Feed speed it is stable in 0.25mm/s;
    The axial stable rolling stage:Breast roll(4)Feed speed is stable to be linearly reduced to 1mm/s, upper and lower cone roller by 2mm/s(1、2) Feed speed increases linearly to 0.5mm/s by 0.25mm/s;
    Correct the full circle stage:Breast roll(4)Feed speed is stable in 1mm/s, upper and lower cone roller(1、2)Feed speed stabilization exists 0.5mm/s;
    Breast roll(4)With upper and lower cone roller(1、2)Rotation:The operation of rolling, upper and lower cone roller(1、2)Rotate backward at the same speed, center Roller(4)With upper and lower cone roller(1、2)The proportionate relationship of rotating speed is:
    WhereinRespectively upper and lower cone roller(1、2)And breast roll(4)Rotational angular velocity,Centered on roller(4)External diameter,For upper and lower cone roller(1、2)Central diameter.
  2. 2. the rolling forming method of H-shaped section ring parts as claimed in claim 1, it is characterised in thatSpan for 2.5~ 3.0。
  3. 3. the rolling forming method of H-shaped section ring parts as claimed in claim 2, it is characterised in that set two outside blank ring Individual guide roller(6), two guide rollers(6)Roll and be connected with the outer wall of blank ring, and two guide rollers(6)Around its axis rotation.
  4. 4. the rolling forming method of H-shaped section ring parts as claimed in claim 3, it is characterised in that the ring blank closes for aluminium Gold, titanium alloy, high temperature alloy, stainless steel, the ring blank of steel.
CN201610659161.0A 2016-08-12 2016-08-12 The rolling forming method of H-shaped section ring parts Expired - Fee Related CN106238632B (en)

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CN102688962A (en) * 2012-05-08 2012-09-26 浙江天马轴承股份有限公司 Symmetric rolling forming method of large inner-step ring parts
CN103567336A (en) * 2013-11-22 2014-02-12 重庆大学 Ring rolling mill for rolling production of seamless ring piece with special-shaped cross section
CN103962482A (en) * 2014-04-14 2014-08-06 太原科技大学 Rolling technology of large wind power flange

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Publication number Priority date Publication date Assignee Title
JPH05228571A (en) * 1991-02-28 1993-09-07 Ntn Corp Ring rolling method
CN102615221B (en) * 2011-12-13 2014-08-20 天马轴承集团股份有限公司 Radial and axial rolling forming method for large-sized double-groove ring piece
CN102489638B (en) * 2011-12-27 2013-01-23 张家港海陆环形锻件有限公司 Radial and axial roll-forming method for large internal-stage annular piece
CN104191166B (en) * 2014-08-04 2016-08-24 贵州航宇科技发展股份有限公司 A kind of roll-forming method of aluminium alloy height cylinder thin-walled ring
CN104259353B (en) * 2014-08-18 2016-06-08 贵州航宇科技发展股份有限公司 A kind of complex thin-wall alloy special-shaped titanium ring forging forming method
CN105127340B (en) * 2015-09-23 2017-03-22 太原科技大学 Method for ring rolling forming of groove inclined inner hole ring part
CN105363974A (en) * 2015-12-02 2016-03-02 贵州安大航空锻造有限责任公司 Isotropic rolling method for cobalt-based high-temperature alloy rectangular ring part

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102688962A (en) * 2012-05-08 2012-09-26 浙江天马轴承股份有限公司 Symmetric rolling forming method of large inner-step ring parts
CN103567336A (en) * 2013-11-22 2014-02-12 重庆大学 Ring rolling mill for rolling production of seamless ring piece with special-shaped cross section
CN103962482A (en) * 2014-04-14 2014-08-06 太原科技大学 Rolling technology of large wind power flange

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