CN106001365B - Thin wall cylinder inwall second radially inner ring finishing die - Google Patents
Thin wall cylinder inwall second radially inner ring finishing die Download PDFInfo
- Publication number
- CN106001365B CN106001365B CN201610600523.9A CN201610600523A CN106001365B CN 106001365 B CN106001365 B CN 106001365B CN 201610600523 A CN201610600523 A CN 201610600523A CN 106001365 B CN106001365 B CN 106001365B
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- Prior art keywords
- inner ring
- radially inner
- pressing mold
- core
- workpiece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
Abstract
The invention discloses a kind of thin wall cylinder inwall second radially inner ring finishing die, it is collectively constituted by pressing mold, core, die sleeve and bed die.The core is secter pat, is placed on workpiece formed first of radially inner ring upper surface and bed die upper surface, and core thickness is equal to twice radially inner ring axial direction spacing built in workpiece.The pressing mold is a kind of rod member of axial cross section for sector, pressing mold is controlled by supporting press and moved up and down, pressure is formed to workpiece one section of thin-walled opening end upward by upsetting squeeze structure downwards, each upsetting squeeze station all equidistantly moves the core and pressing mold of pairing in the same direction after pressure, sequentially one circle and fixed point pressure pressing mold, obtain the second radially inner ring by segmentation upsetting squeeze, progressively shaped.Core small volume in the present invention, in formed space can free displacement, particularly displacement can avoid the axial limiting of radially inner ring, so as to easily, freely be stripped.Present invention is especially suited for make thin wall cylinder inwall second radially inner ring shaping of the bore more than φ 50mm.
Description
Technical field
The present invention relates to a kind of technology in metal forming field, in particular it relates to a kind of upsetting extrusion
Mould, particularly a kind of finishing die for upsetting squeeze thin wall cylinder inwall second radially inner ring.
Background technology
Thin-wall barrel inwall is typically provided with one or twice radially inner ring, for the thin wall cylinder of built-in one of radially inner ring
Part, using existing FMT, almost no technology barrier can be achieved with producing, and the upper and lower mould for shaping can be from inwall footpath
Distinguish axial separation to inner ring both sides.For the thin wall cylinder of built-in twice radially inner ring, because of mutual axle between adjacent radial inner ring
To limitation, finishing die upsetting squeeze job only can not solve the Problems in forming between twice adjacent radial inner ring by upper and lower mould, upper
Although core is added between mould and lower mould can realize the alternate shaping of twice radially inner ring, integrally-built core is sandwiched in it
In can not freely be stripped.Thus core can not be stripped be the thin wall cylinder upsetting extrusion for being equipped with twice radially inner ring obstacle.
The content of the invention
Present invention mainly solves under prior art conditions, built-in twice radially inner ring thin wall cylinder is unable to asking for upsetting extrusion
Topic, proposition one kind is simple in construction, it is accurate to pinpoint pairing, upsetting squeeze is orderly, is stripped easy, the measured thin wall cylinder inwall second of morphoplasm
Road radially inner ring finishing die.
The present invention is achieved through the following technical solutions technical goal.
Thin wall cylinder inwall second radially inner ring finishing die, it is collectively constituted by pressing mold, core, die sleeve and bed die.It is described
Die sleeve is cylindrical structural member, and bottom face and endoporus press workpiece blank outer wall shape and the preset die cavity of size.The bed die is in flange
Shape component, boss location and installation die sleeve upward form cast outer mold structure.It is theed improvement is that：The core is a kind of horizontal
Secter pat, arc-shaped edges and inner hole of workpiece location fit, its bottom face by first formed of radially inner ring upper surface of workpiece and
Bed die upper surface supports jointly, and the thickness of core is equal to twice radially inner ring axial direction spacing built in workpiece.The pressing mold is
A kind of radial section is fan-shaped component, and arc-shaped edges coordinate with die sleeve Internal hole positioning, are placed in the pressing mold on core by supporting
The pressure head control of press moves up and down, and pressing mold, which presses downwards, forms one section of the thin-walled opening end of workpiece upward by upsetting squeeze structure, often
One upsetting squeeze station all equidistantly moves the core and pressing mold of pairing, the circle of order one and fixed point pressure in the same direction after pressure
Pressing mold, so as to obtain forming complete second radially inner ring by sectional forming.
As further improvement project, the fan-shaped central angle alpha of the pressing mold2=40 °~50 °.
As further improvement project, the fan-shaped central angle alpha of the core1=55 °~65 °.
As further improvement project, the pressing mold bottom is respectively equipped with the outer of r=3~6mm along the corner of arc length direction two
Dome arc angle.
The present invention compared with prior art, has the positive effect that：
1st, the finishing die of shrink-fit structure, simple in construction, making is easily；
2nd, it is sector crosssection component to match the core of upsetting squeeze and pressing mold, and such a component one to break the whole up into parts is own vol
Minimize, next to that upsetting squeeze area is small every time, so shaping is easy, most heavy is to accomplish the accessible demoulding of core after upsetting squeeze；
3rd, evagination arc chord angle is made along two corners in arc length direction in pressing mold bottom face, orderly along arc chord angle by the metal of upsetting squeeze
Plastic deformation, accomplishes that the problem of base metals are sheared does not occur for upsetting squeeze process completely.
Brief description of the drawings
Fig. 1 is structural profile illustration of the present invention.
Fig. 2 is Fig. 1 top view.
Fig. 3 is the thin wall cylinder section of structure for being equipped with twice radially inner ring.
Fig. 4 is the thin wall cylinder semi-finished product half-section diagram for having made first of radially inner ring upsetting extrusion.
Fig. 5 is the schematic diagram that pressing mold bottom is provided with r arc chord angles along arc length direction both ends.
Embodiment
Below according to accompanying drawing and in conjunction with the embodiments, the invention will be further described.
Thin wall cylinder inwall second radially inner ring finishing die shown in Fig. 1, it is by core 1, pressing mold 2, die sleeve 3 and bed die 4
Collectively constitute.The die sleeve 3 is cylindrical structural member, the blank outer wall shape of workpiece 5 and size of bottom face and endoporus as shown in Figure 3
Preset die cavity.The bed die 4 is the basic component in structure, and it is in Flange-shaped Parts, and boss location and installation die sleeve 3 upward is formed
Cast outer mold structure.The core 1 is the core component in the present invention, and it should meet second radially inner ring molding condition, again
Meet the demoulding condition after upsetting squeeze.Therefore, core 1 is designed to a secter pat by the present invention, the secter pat area is only the institute of workpiece 5
Locate the part in section.In the present embodiment, core 1 is central angle alpha1=60 ° of secter pat, arc-shaped edges are matched somebody with somebody with the Internal hole positioning of workpiece 5
Close, bottom face is supported jointly by first formed of radially inner ring upper surface of workpiece 5 and the upper surface of bed die 4, the thickness of core 1
Size is equal to twice radially inner ring axial direction spacing built in workpiece 5.The pressing mold 2 is that the component for making shaping upsetting squeeze is matched with core 1,
It is a kind of radial section for fan-shaped component, and pressing mold 2 is central angle alpha in the present embodiment2=45 ° of sector, arc-shaped edges and die sleeve
3 Internal hole positionings coordinate.The pressing mold 2 is located on core 1 and the position that exists together, and pressing mold 2 is by the pressure head control of supporting press
Lower motion, pressure forms one section of the thin-walled opening end of workpiece 5 upward by upsetting squeeze structure to pressing mold 2 downwards.In order to avoid upsetting squeeze process
By upsetting squeeze metal shear problem occurs for the middle bottom face of pressing mold 2 and workpiece 5, the present invention by the bottom face of pressing mold 2 along arc length direction two
Evagination arc chord angle as shown in Figure 5 is made in corner, and the structure allows to be plastically deformed in order by the metal of upsetting squeeze along evagination arc chord angle, by
This ensures to be segmented upsetting extrusion quality.The present embodiment workpiece 5 is car auxiliary equipment, and size is relatively small, so the bottom face of pressing mold 2
It is set to r=4mm evagination arc chord angle along two corners in arc length direction, is actually used in one section of second radially inner ring of upsetting extrusion such as
Shown in Fig. 3, the arc-shaped edges that leading portion is stayed are flattened by follow-up upsetting squeeze.Follow-up each upsetting squeeze station is after pressure all equidistantly towards same
The core 1 and pressing mold 2 of one direction movement pairing, the present embodiment synchronizing moving counterclockwise, are applied through the circle of order one and fixed point
Pressing mold 2 is pressed, so as to obtain that complete second radially inner ring as shown in Figure 3 is made up of sectional forming.Such a segmentation upsetting squeeze, progressively
Forming step is reasonable, easily realizes production, forming quality stabilization.
It is only an object of the present invention to complete the second radially inner ring upsetting extrusion of workpiece 5, and can core 1 smoothly be stripped
It is structure design emphasis of the present invention.Because having axial limiting problem, pin to core 1 after the twice radially inner ring shaping built in workpiece 5
To actual conditions, the present invention is using the design to break the whole up into parts, i.e., with fan-shaped core 1 and the pairing segmentation upsetting squeeze of fan-shaped pressing mold 2.
Such a structure design causes the own vol of core 1 to minimize, and the present embodiment is only the 1/6 of shaped cross section area.The volume of core 1
It is small, in formed space can free displacement, particularly radial displacement can avoid the axial limiting of radially inner ring, so as to light
Loose ground, freely it is stripped.Core 1 of the present invention accomplishes the accessible demoulding after completing to form, and thoroughly solves in thin wall cylinder
Put the technical barrier of twice radially inner ring upsetting extrusion.
Claims (4)
1. a kind of thin wall cylinder inwall second radially inner ring finishing die, it is by core（1）, pressing mold（2）, die sleeve（3）And bed die（4）
Collectively constitute；The die sleeve（3）For cylindrical structural member, bottom face and endoporus press workpiece（5）Blank outer wall shape and size are preset
Die cavity；The bed die（4）In flange-like member, boss location and installation die sleeve upward（3）Form cast outer mold structure；Its feature exists
In：The core（1）It is a kind of secter pat of horizontal, arc-shaped edges and workpiece（5）Internal hole positioning coordinates, and its bottom face is by workpiece
（5）First formed of radially inner ring upper surface and bed die（4）Upper surface supports jointly, core（1）Thickness be equal to
Workpiece（5）Built-in twice radially inner ring axial direction spacing；The pressing mold（2）It is a kind of radial section for fan-shaped component, arc-shaped edges
With die sleeve（3）Internal hole positioning coordinates, and is placed in core（1）On pressing mold（2）Controlled and moved up and down by the pressure head of supporting press,
Pressing mold（2）Pressure forms workpiece downwards（5）One section of thin-walled opening end upward is by upsetting squeeze structure, and each upsetting squeeze station is in pressure
All equidistantly move the core of pairing in the same direction afterwards（1）And pressing mold（2）, order one is enclosed and fixed point pressure pressing mold（2）, so as to
Obtain forming complete second radially inner ring by sectional forming.
2. thin wall cylinder inwall second radially inner ring finishing die according to claim 1, it is characterised in that：The pressing mold
（2）Fan-shaped central angle alpha2=40 °~50 °.
3. thin wall cylinder inwall second radially inner ring finishing die according to claim 1, it is characterised in that：The core
（1）Fan-shaped central angle alpha1=55 °~65 °.
4. thin wall cylinder inwall second radially inner ring finishing die according to claim 1, it is characterised in that：The pressing mold
（2）Bottom is respectively equipped with r=3~6mm evagination arc chord angle along the corner of arc length direction two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610600523.9A CN106001365B (en) | 2016-07-28 | 2016-07-28 | Thin wall cylinder inwall second radially inner ring finishing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610600523.9A CN106001365B (en) | 2016-07-28 | 2016-07-28 | Thin wall cylinder inwall second radially inner ring finishing die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106001365A CN106001365A (en) | 2016-10-12 |
| CN106001365B true CN106001365B (en) | 2018-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610600523.9A Active CN106001365B (en) | 2016-07-28 | 2016-07-28 | Thin wall cylinder inwall second radially inner ring finishing die |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU564076A1 (en) * | 1976-02-17 | 1977-07-05 | Физико-технический институт АН Белорусской ССР | Stamp for hot stamping blanks |
| SU1013073A1 (en) * | 1981-12-03 | 1983-04-23 | Первый Государственный Ордена Ленина И Ордена Октябрьской Революции Подшипниковый Завод | Method of making rings and die for performing same |
| DE3323377A1 (en) * | 1982-07-21 | 1984-01-26 | BBC Aktiengesellschaft Brown, Boveri & Cie., 5401 Baden, Aargau | Heated prestressed forging die for isothermal deformation of metals |
| CN1528541A (en) * | 2003-10-18 | 2004-09-15 | 胡补元 | Combined mould for precasting ring-type forge piece cast steel billet |
| CN201437148U (en) * | 2009-03-20 | 2010-04-14 | 北京机电研究所 | Roll forging die block for automatic roll forging machine |
| CN202070709U (en) * | 2011-04-20 | 2011-12-14 | 常州市双强机械制造有限公司 | Tyre mold profile ring forging tool |
| CN202741657U (en) * | 2012-07-19 | 2013-02-20 | 西北工业大学 | Core mold for forming band annular internal reinforcement rib revolving thin-wall part |
| CN103341515A (en) * | 2013-06-17 | 2013-10-09 | 中北大学 | Extrusion forming mould for annular ribs of magnesium alloy shell parts |
| CN204307929U (en) * | 2014-11-25 | 2015-05-06 | 张家港海陆环形锻件有限公司 | For interior frock of establishing high annular boss ring forging to forge |
| CN206316298U (en) * | 2016-07-28 | 2017-07-11 | 江苏太平洋精锻科技股份有限公司 | Thin wall cylinder inwall second radially inner ring finishing die |
-
2016
- 2016-07-28 CN CN201610600523.9A patent/CN106001365B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU564076A1 (en) * | 1976-02-17 | 1977-07-05 | Физико-технический институт АН Белорусской ССР | Stamp for hot stamping blanks |
| SU1013073A1 (en) * | 1981-12-03 | 1983-04-23 | Первый Государственный Ордена Ленина И Ордена Октябрьской Революции Подшипниковый Завод | Method of making rings and die for performing same |
| DE3323377A1 (en) * | 1982-07-21 | 1984-01-26 | BBC Aktiengesellschaft Brown, Boveri & Cie., 5401 Baden, Aargau | Heated prestressed forging die for isothermal deformation of metals |
| CN1528541A (en) * | 2003-10-18 | 2004-09-15 | 胡补元 | Combined mould for precasting ring-type forge piece cast steel billet |
| CN201437148U (en) * | 2009-03-20 | 2010-04-14 | 北京机电研究所 | Roll forging die block for automatic roll forging machine |
| CN202070709U (en) * | 2011-04-20 | 2011-12-14 | 常州市双强机械制造有限公司 | Tyre mold profile ring forging tool |
| CN202741657U (en) * | 2012-07-19 | 2013-02-20 | 西北工业大学 | Core mold for forming band annular internal reinforcement rib revolving thin-wall part |
| CN103341515A (en) * | 2013-06-17 | 2013-10-09 | 中北大学 | Extrusion forming mould for annular ribs of magnesium alloy shell parts |
| CN204307929U (en) * | 2014-11-25 | 2015-05-06 | 张家港海陆环形锻件有限公司 | For interior frock of establishing high annular boss ring forging to forge |
| CN206316298U (en) * | 2016-07-28 | 2017-07-11 | 江苏太平洋精锻科技股份有限公司 | Thin wall cylinder inwall second radially inner ring finishing die |
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| CN106001365A (en) | 2016-10-12 |
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