CN107597889A - A kind of semi-closed structure thin-wall barrel hot sizing device - Google Patents
A kind of semi-closed structure thin-wall barrel hot sizing device Download PDFInfo
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- CN107597889A CN107597889A CN201710871393.7A CN201710871393A CN107597889A CN 107597889 A CN107597889 A CN 107597889A CN 201710871393 A CN201710871393 A CN 201710871393A CN 107597889 A CN107597889 A CN 107597889A
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- ringfeder
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- closed structure
- addendum cone
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Abstract
The invention provides a kind of semi-closed structure thin-wall barrel hot sizing device, two addendum cone conical surface confronting coaxials are sleeved on mandrel both ends, and one of addendum cone is fixed, and another addendum cone is by the coaxially connected lifting nut of neck, when lifting nut rotates axially movable；Ringfeder is circumferentially divided at least two pieces, and coaxial package is outside mandrel, the conical surface at ringfeder endoporus both ends and the cone match of two addendum cones, and external diameter is less than the internal diameter of semi-closed structure thin-wall barrel when each piece of ringfeder closes up；When two addendum cones are drawn close under lifting nut driving, ringfeder moves radially outwards, and correction semi-closed structure thin-wall barrel reaches the linearity and circularity of requirement.The present invention can lift the heat treatment qualification rate of cylinder, shorten production and issue handling cycle.
Description
Technical field
The invention belongs to hot sizing technical field, is related to a kind of hot sizing device.
Background technology
The technique that high intensity, ultrahigh-strength steel thin-wall cylinder part weld, heat treatment deformation is always the cylinder manufacturing
Technological difficulties, to ensure its machining accuracy, it usually needs corrected shape in heat treatment.Control heat treatment deformation mainly passes through
After special tooling is fixed to deformation serious position progress inner support or outer armful of reinforcing, in appropriate temperature tempering.Semi-closed structure is thin
During wall cylinder heat-treatment quenching, due to being rolled naturally in hardening media (liquid such as water or oil), deformation is serious, circularity, straight line
Degree exceeds design error scope.
Certain semi-closed structure cylinder product material is structural alloy steel, wall thickness 1.5mm.Cylinder is by bottom (head) and straight section cylinder
It is welded, postwelding is heat-treated.Because substantial amounts of heat input when welding, heat treatment, position while welding stress concentration is whole thin
Wall cylinder gross distortion, final appearance and size circularity, linearity are overproof.In subsequent production, inner barrel parts can not assemble
Or potential safety hazard is left, cause cylinder to scrap, bring serious financial consequences, expend the resources costs such as a large amount of human and material resources.
Inner support or hem type school shape frock school shape are used for thin-wall barrel is normal.Inner bearing type hot sizing mainly utilizes inner support work
The heating expansion for filling expander material applies external force to the thin-walled parts of hot mastication, and the part shape and size for making deformation obtain school
Just, this method is more beneficial for the whole body shaping of cylinder part, the overproof school shape of such as cylinder linearity, cylindricity；Hem type heat
School shape is mainly to apply external force to the part of deformation using the method for machinery reinforcing, is more beneficial for the cylinder body shaping of local deformation,
Such as cylinder part circularity over tolerance school shape.At present, for semi-closed structure thin-wall barrel, it is desirable to while meet linearity, circularity
Design requirement, also the hot sizing device without positive effect.
The content of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of semi-closed structure thin-wall barrel hot sizing device, energy
The heat treatment qualification rate of cylinder is enough lifted, shortens production and issue handling cycle.
The technical solution adopted for the present invention to solve the technical problems is：A kind of semi-closed structure thin-wall barrel hot sizing dress
Put, including mandrel, ringfeder, lifting nut and two addendum cones；Two described addendum cone conical surface confronting coaxials are sleeved on mandrel both ends,
One of addendum cone position is fixed, and another addendum cone is formed with mandrel and rolled by the coaxially connected lifting nut of neck, lifting nut
Ballscrew pair；The addendum cone endoporus of connection lifting nut is provided with keyway vertically, coordinates with the flat key of mandrel outer wall, it is ensured that addendum cone exists
Lifting nut does not do circumferential movement when rotating, only axially movable；Described ringfeder is circumferentially divided at least two pieces, coaxial sleeve
Outside mandrel, the conical surface at ringfeder endoporus both ends and the cone match of two addendum cones, external diameter is less than half and sealed when each piece of ringfeder closes up
Close the internal diameter of structure thin-wall barrel；When two addendum cones are drawn close under lifting nut driving, ringfeder moves radially outwards, correction half
Enclosed construction thin-wall barrel reaches the linearity and circularity of requirement.
The addendum cone outer wall of the connection lifting nut has screw thread, holds out against nut and is connected to addendum cone outer wall by threaded coaxial
On.
The angle of the addendum cone conical surface and addendum cone axis is 10 °~30 °.
The rectangular step hole of the insertion conical surface, the inclination side of the long side direction of stepped hole parallel to addendum cone are provided with the ringfeder
To；Positioning screw one end is connected on addendum cone through stepped hole, and the other end is spacing by stepped hole.
Outer wall of the ringfeder close to lifting nut one end is provided with positioning screw, it is ensured that it is thin that ringfeder stretches into semi-closed structure
Axial limiting after wall cylinder.
The ringfeder is circumferentially divided into three pieces.
The beneficial effects of the invention are as follows：Using the method for mechanical adjustment, the outside dimension after being propped up by adjusting ringfeder,
To integrally being applied uniformly outside power by school shape cylinder, make cylinder while meet linearity, the design requirement of circularity, reach from half
The purpose of school shape inside enclosed construction thin-wall barrel.
Brief description of the drawings
Fig. 1 is the sectional view of the described semi-closed structure thin-wall barrel hot sizing device of the present invention, left semi-section in figure
It is ringfeder contraction state, ringfeder external diameter shrinks, and housing unloads；Right semi-section is ringfeder tensioner shell inner hole, in running order；
In figure, 1. mandrels；2. nut；Addendum cone on 3.；4. screw；5. ringfeder；6. flat key；7. counter-sunk screw；8. position spiral shell
Nail；9. hold out against nut；10. lower addendum cone；11. lifting nut；12. drift.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples, and the present invention includes but are not limited to following implementations
Example.
A kind of semi-closed structure thin-wall barrel hot sizing device provided by the invention, including mandrel, upper addendum cone are enclosed on mandrel
Epimere is simultaneously fixed by nut, and ringfeder is by screw through the rectangular stepped hole of upper and lower ends is suspended on upper addendum cone, lower addendum cone is bored
On face, ringfeder hypomere is arranged on by the positioning screw vertical axial of school shape cylinder installation site for limiting, lower addendum cone is enclosed on the heart
Axle stage casing and inner hole key slot are stuck on the flat key in mandrel, can only be moved up and down along mandrel.Nut is held out against to be threadedly attached in
Ball screw assembly, is formed on lower addendum cone and with mandrel, lifting nut is enclosed in mandrel and is connected with lower addendum cone by neck.
The mandrel epimere has the limited step of fixed upper addendum cone, and mandrel stage casing set loads the position of addendum cone by immersing oneself in spiral shell
Nail is provided with flat key, and mandrel end section milling is flat to be easy to grip on the table.
The upper addendum cone, the lower addendum cone conical surface and addendum cone axis angle are 10 °~30 °, have been uniformly distributed circumferentially on the conical surface
Screw, lower addendum cone endoporus have keyway vertically.
The ringfeder divides equally at least two valves in the axial direction, there is the cone of taper identical with upper and lower addendum cone on the inside of ringfeder both ends
There is the rectangular stepped hole for being used for suspension perpendicular to the conical surface in face, both ends outside, and ringfeder hypomere has perpendicular to ringfeder axial direction close to end
Positioning screw hole.Ringfeder can slidably along upper addendum cone, lower addendum cone, can synchronous spreading and contraction.
Embodiments of the invention as shown in figure 1, mainly include mandrel 1, nut 2, upper addendum cone 3, screw 4, three valve ringfeders 5,
Flat key 6, counter-sunk screw 7, positioning screw 8, hold out against nut 9, lower addendum cone 10, lifting nut 11, drift 12.
Wherein, the upper conical surface of addendum cone 3 is enclosed on the epimere of mandrel 1 and fixation down, and flat key 6 is arranged on mandrel 1 by counter-sunk screw 7
Stage casing, the lower conical surface of addendum cone 10 is enclosed in mandrel 1 upward, and inner hole key slot is stuck on flat key 6, is held out against nut 9 and is connected through a screw thread
On lower addendum cone 10, lifting nut 11 is enclosed in mandrel 1 and is connected with lower addendum cone 10 by neck, and rotating lifting nut 11 can be with
Lower addendum cone 10 is driven to be moved up and down along mandrel 1.
Ringfeder 5 is arranged on upper addendum cone 3 and the lower conical surface of addendum cone 10 by screw 4, and screw 8 is arranged on the hypomere end of ringfeder 5,
For positioning by the positioning of school shape semi-closed structure thin-wall barrel.
During work, lifting nut 11 promotes lower addendum cone 10, holds out against nut 9 and promotes ringfeder 5, and ringfeder is along the upper and lower addendum cone conical surface
Slip is propped up by addendum cone, makes three valve ringfeder external diameters consistent with by school shape cylinder internal diameter size.
The use process of above-mentioned semi-closed structure thin-wall barrel hot sizing device is：(a) the hot sizing device that will be assembled
The flat position in mandrel lower end is put on work bench vice, is kept vertical state and is clamped；(b) will be thin by the semi-closed structure of school shape
Wall barrel jacket is on the three valve ringfeders in free shrink state, until cartridge openings end is positioned screw and just blocked；(c) turn
Dynamic lifting nut, lower addendum cone is increased, hold out against nut by ringfeder top to operating position, after tensioner housing, retract original position, then under making
Addendum cone holds out against ringfeder, and each position distortions situation of measurement cylinder simultaneously adjusts ringfeder tensioner degree, after meeting technological requirement, stamps wedge
Iron.(d) after temper, room temperature is cooled to, unloads corrector.
Claims (6)
1. a kind of semi-closed structure thin-wall barrel hot sizing device, including mandrel, ringfeder, lifting nut and two addendum cones, it is special
Sign is：Two described addendum cone conical surface confronting coaxials are sleeved on mandrel both ends, and one of addendum cone position is fixed, another top
Cone passes through the coaxially connected lifting nut of neck, and lifting nut forms ball screw assembly, with mandrel；In the addendum cone for connecting lifting nut
Hole is provided with keyway vertically, coordinates with the flat key of mandrel outer wall, it is ensured that addendum cone does not do circumferential movement when lifting nut rotates, only
Axially movable；Described ringfeder is circumferentially divided at least two pieces, and coaxial package is outside mandrel, the conical surface at ringfeder endoporus both ends
With the cone match of two addendum cones, external diameter is less than the internal diameter of semi-closed structure thin-wall barrel when each piece of ringfeder closes up；In lifting spiral shell
When lower two addendum cones of mother's driving are drawn close, ringfeder moves radially outwards, and correction semi-closed structure thin-wall barrel reaches the straight of requirement
Dimension and circularity.
2. semi-closed structure thin-wall barrel hot sizing device according to claim 1, it is characterised in that：The connection lifting
The addendum cone outer wall of nut has screw thread, holds out against nut and is connected to by threaded coaxial on addendum cone outer wall.
3. semi-closed structure thin-wall barrel hot sizing device according to claim 1, it is characterised in that：The addendum cone conical surface
Angle with addendum cone axis is 10 °~30 °.
4. semi-closed structure thin-wall barrel hot sizing device according to claim 1, it is characterised in that：Opened on the ringfeder
There are the rectangular step hole of the insertion conical surface, the incline direction of the long side direction of stepped hole parallel to addendum cone；Positioning screw one end passes through
Stepped hole is connected on addendum cone, and the other end is spacing by stepped hole.
5. semi-closed structure thin-wall barrel hot sizing device according to claim 1, it is characterised in that：The ringfeder is close
The outer wall of lifting nut one end is provided with positioning screw, it is ensured that the axial limiting that ringfeder is stretched into after semi-closed structure thin-wall barrel.
6. semi-closed structure thin-wall barrel hot sizing device according to claim 1, it is characterised in that：Ringfeder edge week
To being divided into three pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710871393.7A CN107597889A (en) | 2017-09-25 | 2017-09-25 | A kind of semi-closed structure thin-wall barrel hot sizing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710871393.7A CN107597889A (en) | 2017-09-25 | 2017-09-25 | A kind of semi-closed structure thin-wall barrel hot sizing device |
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| CN107597889A true CN107597889A (en) | 2018-01-19 |
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| CN201710871393.7A Pending CN107597889A (en) | 2017-09-25 | 2017-09-25 | A kind of semi-closed structure thin-wall barrel hot sizing device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109127905A (en) * | 2018-07-27 | 2019-01-04 | 西安长峰机电研究所 | A kind of spreading formula corrector of thin-wall tube-shaped element |
| CN109277437A (en) * | 2018-10-10 | 2019-01-29 | 中国航发哈尔滨东安发动机有限公司 | Bind round circle device in a kind of thin-wall tube shaft end portion |
| CN109352119A (en) * | 2018-11-23 | 2019-02-19 | 中国航发沈阳黎明航空发动机有限责任公司 | It is a kind of to improve certain clamp structure for obturaging ring assemblies class part soldering clamping precision |
| CN109604380A (en) * | 2018-11-23 | 2019-04-12 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of process unit for thin-walled twin-layer structure thermal recalibration |
| CN113523030A (en) * | 2021-08-04 | 2021-10-22 | 安徽巨一科技股份有限公司 | Circle expanding mechanism in synchronous uniform force constant speed reducing cylinder |
| CN115213704A (en) * | 2021-04-21 | 2022-10-21 | 航天科工惯性技术有限公司 | Adjustable lining device for machining thin-wall parts and machining method based on adjustable lining device |
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| US3986383A (en) * | 1974-01-02 | 1976-10-19 | Petteys Howard A | Expander tool |
| SU1319966A1 (en) * | 1985-06-05 | 1987-06-30 | Предприятие П/Я Г-4217 | Tube expander |
| EP0234283A1 (en) * | 1986-02-13 | 1987-09-02 | L. & C. Steinmüller GmbH | Expanding mandrel for pressure-sealed installation of a tube in a hole of a tube sheet |
| JPH07290170A (en) * | 1994-04-22 | 1995-11-07 | Sumitomo Metal Ind Ltd | Head for mechanical pipe expander |
| CN101745587A (en) * | 2010-01-20 | 2010-06-23 | 番禺珠江钢管有限公司 | Push-pull type dual-expanding-head of expanding machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109127905A (en) * | 2018-07-27 | 2019-01-04 | 西安长峰机电研究所 | A kind of spreading formula corrector of thin-wall tube-shaped element |
| CN109277437A (en) * | 2018-10-10 | 2019-01-29 | 中国航发哈尔滨东安发动机有限公司 | Bind round circle device in a kind of thin-wall tube shaft end portion |
| CN109352119A (en) * | 2018-11-23 | 2019-02-19 | 中国航发沈阳黎明航空发动机有限责任公司 | It is a kind of to improve certain clamp structure for obturaging ring assemblies class part soldering clamping precision |
| CN109604380A (en) * | 2018-11-23 | 2019-04-12 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of process unit for thin-walled twin-layer structure thermal recalibration |
| CN115213704A (en) * | 2021-04-21 | 2022-10-21 | 航天科工惯性技术有限公司 | Adjustable lining device for machining thin-wall parts and machining method based on adjustable lining device |
| CN113523030A (en) * | 2021-08-04 | 2021-10-22 | 安徽巨一科技股份有限公司 | Circle expanding mechanism in synchronous uniform force constant speed reducing cylinder |
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Application publication date: 20180119 |