CN109909356A - A kind of spin forming method of flanged pin deep taper thin-wall revolving meber - Google Patents
A kind of spin forming method of flanged pin deep taper thin-wall revolving meber Download PDFInfo
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- CN109909356A CN109909356A CN201910176820.9A CN201910176820A CN109909356A CN 109909356 A CN109909356 A CN 109909356A CN 201910176820 A CN201910176820 A CN 201910176820A CN 109909356 A CN109909356 A CN 109909356A
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Abstract
The present invention relates to spin forming technique field more particularly to a kind of spin forming methods of flanged pin deep taper thin-wall revolving meber.It includes the steps of determining that spinning pass, calculates the size of round plate blank in conjunction with isometric principle according to blank volume, machining allowance, the mould pressing surplus after final passage mould pressing；According to the wall thickness and semi-cone angle of the blank of each spinning pass mould pressing, the technological parameter of spinning roller and core model in each spinning pass is determined, core mould is in multisection type, and the revolving speed of core model is sequentially reduced by the bigger diameter end of miner diameter end to the core model of core model；First, 2 ... n times spinning are successively carried out on corresponding core model, gradually reduce the wall thickness or semi-cone angle of blank, until obtaining the blank after final passage mould pressing；Turnery processing is carried out to the blank after final passage mould pressing.The present invention is suitable for alloy material, and devises the segmentation different rotating speeds of core model to guarantee part forming evenness of wall thickness.
Description
Technical field
The present invention relates to being spun into for spin forming technique field more particularly to a kind of flanged pin deep taper thin-wall revolving meber
Shape method.
Background technique
The part of flanged pin deep taper thin-wall revolving meber, is welded to form by conical part and flange part.It was welding
Cheng Zhong, weld deformation is big, and the dimensional accuracy of part does not reach requirement, and part is carried out after welding the process of Shape correction compared with
For complexity, effect is also poor, in order to avoid mostly using part integral spinning forming greatly now due to problem on deformation caused by welding
Technique guarantees the size requirement of part, but that there are setting rates is very fast for some alloy materials when mould pressing, tensile strength compared with
High problem, and the deep taper of part causes the diameter difference in its different conical surfaces position larger, turns according to identical core model
Speed and spinning roller feed speed, then linear velocity difference of the spinning roller when different location shapes is huge, easily causes the forming stress of part
Unevenness, wall unevenness are even.
Such as 206912010 U of Chinese patent Authorization Notice No. CN, authorized announcement date 2018.01.23, entitled " one kind
Automatic loading/unloading cnc spinning machine " discloses a kind of automatic loading/unloading cnc spinning machine, including numerical control device and spinning owner
Body, spinning machine main body are provided with main shaft and spindle chuck, and spindle chuck is clamped with knife rest, cutter, spinning machine are provided on knife rest
It is provided with tail top oil cylinder on the right side of main body, the first clamping cylinder, the rear side of spinning machine main body are provided on front side of spinning machine main body
It is provided with the second clamping cylinder, the piston rod of the first clamping cylinder and the second clamping cylinder is separately connected two gripping blocks, spinning machine
The top of main body is provided with longitudinal oil cylinder, and longitudinal oil cylinder connects lateral oil cylinder, is provided with gripper on the piston rod of longitudinal oil cylinder
Tool hand is provided with automatic loading and unloading mechanism below spinning machine main body.This spinning machine or technology still remain the above problem,
I.e. mould pressing when alloy material when that there are setting rates is very fast, tensile strength is higher, and spinning roller is when different location shapes
Linear velocity difference is huge, easily causes the forming unbalance stress of part, wall unevenness is even.
Summary of the invention
It is very fast that there are setting rates when alloy material when the purpose of the invention is to overcome mould pressing in the prior art,
Tensile strength is higher, and linear velocity difference of the spinning roller when different location shapes is huge, easily causes the forming unbalance stress of part,
The even deficiency of wall unevenness provides a kind of spin forming method of flanged pin deep taper thin-wall revolving meber, designs multi-pass spinning
Forming makes spin forming technique be suitable for alloy material, and devises the segmentation different rotating speeds of core model to guarantee part forming wall
Thick uniformity.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of spin forming method of flanged pin deep taper thin-wall revolving meber, includes the following steps:
Step S1, determines spinning pass, according to the blank volume after final passage mould pressing, machining allowance, spinning
Surplus is shaped, in conjunction with isometric principle, calculates the size of round plate blank；
Step S2 is determined in each spinning pass according to the wall thickness and semi-cone angle of the blank of each spinning pass mould pressing
The technological parameter of spinning roller and core model, core mould be in multisection type, and the revolving speed of core model by core model miner diameter end to core model major diameter
End is sequentially reduced；
Step S3 successively carries out the 1st, 2 ... n times spinning on corresponding core model, gradually reduces the wall thickness or half of blank
Cone angle, until obtaining the blank after final passage mould pressing；
Step S4 carries out turnery processing, excision remainder punching to the blank after final passage mould pressing.
Preferably, the core model in step S2 is made of several core model unit spliceds, axis of each core model unit along core model
It is sequentially distributed.
Preferably, the core model is driven by machine tool chief axis, machine tool chief axis includes the different main axle unit of several revolving speeds, main
Axle unit and core model unit correspond, and core model unit follows corresponding main axle unit to rotate.
Preferably, the ratio between revolving speed of two neighboring core model unit is 0.65~0.95.
Preferably, in two neighboring spinning pass: the quantity of the latter spinning pass core form unit is greater than previous
The quantity of a spinning pass core form unit.
The beneficial effects of the present invention are: (1) provides multi-pass spinning manufacturing process, change the numerous of former part welding combination
Trivial forming mode, and that there are setting rates when solving existing rotary pressure technology forming high temperature alloy is very fast, tensile strength is higher
Problem improves the forming accuracy of part, reduces defect rate；(2) different turns of position segmentation are fed according to spinning roller using core model
The evenness of wall thickness of blank in forming process has been effectively ensured to guarantee the spin forming method of similar linear velocity in speed.
Detailed description of the invention
Fig. 1 is the structural schematic diagram at core mould of the present invention；
Fig. 2 is the dimensional drawing of part in the present invention；
Fig. 3 is the dimensional drawing of the first passage spinning blank in the present invention；
Fig. 4 is the dimensional drawing of the second passage spinning blank in the present invention；
Fig. 5 is the dimensional drawing of third passage spinning blank in the present invention；
Fig. 6 is the dimensional drawing of four-pass spinning blank in the present invention.
In figure: part 1, the first passage spinning blank P1, the second passage spinning blank P2, third passage spinning blank
Part P3, four-pass spinning blank P4, core model unit 2, main axle unit 3.
Specific embodiment
The present invention will be further described in the following with reference to the drawings and specific embodiments.
As shown in Fig. 1 to Fig. 6, in the present embodiment the material of part 1 be high temperature alloy GH3030, size as shown in Fig. 2,
A kind of spin forming method of flanged pin deep taper thin-wall revolving meber is told about, specific as follows:
Determine that spinning pass, the present embodiment take 4 passages, according to four-pass mould pressing blank P4Volume, turning
Surplus, mould pressing surplus calculate the size of round plate blank, specifically, volume of part V in conjunction with isometric principlep=
602576mm3, the theoretical volume V of round plate blankP reasonEqual to the volume V of four-pass blankP4, VP4=756373mm3,
It is hereby achieved that the theoretical diameter D of round plate blankReason≈ 400mm, in addition, the process allowance of spinning stays 12mm left per pass
It is right.
According to the wall thickness and semi-cone angle of the blank of each spinning pass mould pressing, spinning roller and core in each spinning pass are determined
The technological parameter of mould, core mould is in multisection type, and the revolving speed of core model is successively subtracted by the bigger diameter end of miner diameter end to the core model of core model
Small, core model is spliced to form by several core model units 2, and each core model unit is sequentially distributed along the axis of core model, and core model is by machine tool chief axis
Driving, machine tool chief axis include the different main axle unit 3 of several revolving speeds, and main axle unit and core model unit correspond, core model unit
Corresponding main axle unit is followed to rotate.In two neighboring spinning pass: the ratio between revolving speed of two core model units be 0.65~
0.95, the uniformity that suitable rotating ratio guarantees wall thickness is controlled, while the quantity of the latter spinning pass core form unit is greater than
The quantity of previous spinning pass core form unit, the quantity of the first passage to four-pass core form unit is respectively 5,6,8,
9, passage blank wall thickness in the backward is thinner, and axial dimension is bigger, and more core model units are arranged and advantageously ensure that blank
Evenness of wall thickness.
First passage spinning is that the round plate blank that material is GH3030 is processed into semi-cone angle α1=48 °, conically shaped
Body wall thickness t1The blank P of=4.5mm1, blank P1As shown in Figure 3, it is clear that, the first passage spinning belongs to shear spinning.Institute
With by plate blank rotary pressing processing at semi-cone angle α1=48 °, taper stack shell wall thickness t1The blank P of=4.5mm1, it is because of multiple tracks
The law of sines should be followed as far as possible in secondary shear spinning forming process, it may be assumed that
Wherein, β1For the Tapered Cup semi-cone angle after n-th spinning；t1For the Tapered Cup stack shell wall thickness after i-th spinning；β2
For the Tapered Cup semi-cone angle after i+1 time spinning；t2For after i+1 time spinning Tapered Cup stack shell wall thickness (i=0,1,2,
3……)。
The specific process parameter of mould pressing is as shown in table 1, and for GH3030 high-temperature alloy material, rotation speed is 200m/min
Left and right is distributed as shown in table 1 by the mandrel rotary velocity that it is converted, when spinning roller and blank just contact, process of the spinning roller along main shaft
It is defined as 0.In addition, Roller locus is parallel with core model bus.
1 first passage mandrel rotary velocity distribution table of table
Second passage spinning is by blank P1It is processed into semi-cone angle α2=30 °, taper stack shell wall thickness t2The blank of=3mm
Part P2, blank P2Size as shown in figure 4, the second passage spinning belongs to shear spinning.Wherein, α2, t2With α1, t1Also meet just
String law.As shown in table 2, Roller locus is parallel with core model bus for mandrel rotary velocity distribution.
2 second passage mandrel rotary velocity distribution table of table
Third passage spinning is by blank P2It is processed into semi-cone angle α3=20 °, taper stack shell wall thickness t3The hair of=3mm
Blank P3, blank P3Size as shown in figure 5, wall thickness remains unchanged in third passage spinning process, belong to common pad pasting rotation
Pressure, Roller locus are parallel with core model bus.Mandrel rotary velocity distribution is as shown in table 3.
3 third passage mandrel rotary velocity distribution table of table
Four-pass spinning is by blank P3It is processed into semi-cone angle α4=13.5 °, taper stack shell wall thickness t4The rotation of=2mm
Dabbing blank P4, blank P4Size as shown in fig. 6, wall thickness reduction in four-pass spinning process, belongs to shear spinning, at
When shape taper stack shell, Roller locus is parallel with core model bus, and last spinning roller is along core model radial feed, and spinning roller and core model are circumferentially convex
The gap of platform is 6mm, and to achieve the purpose that smooth flange, mandrel rotary velocity is shown in Table 4.
4 four-pass mandrel rotary velocity distribution table of table
Turnery processing, excision remainder punching finally are carried out to the blank after final passage mould pressing.
The beneficial effects of the present invention are: (1) provides multi-pass spinning manufacturing process, change the numerous of former part welding combination
Trivial forming mode, and that there are setting rates when solving existing rotary pressure technology forming high temperature alloy is very fast, tensile strength is higher
Problem improves the forming accuracy of part, reduces defect rate；(2) different turns of position segmentation are fed according to spinning roller using core model
The evenness of wall thickness of blank in forming process has been effectively ensured to guarantee the spin forming method of similar linear velocity in speed.
Claims (5)
1. a kind of spin forming method of flanged pin deep taper thin-wall revolving meber, characterized in that include the following steps:
Step S1, determines spinning pass, according to the blank volume after final passage mould pressing, machining allowance, mould pressing
Surplus calculates the size of round plate blank in conjunction with isometric principle；
Step S2 determines spinning roller in each spinning pass according to the wall thickness and semi-cone angle of the blank of each spinning pass mould pressing
With the technological parameter of core model, core mould be in multisection type, and the revolving speed of core model by core model miner diameter end to core model bigger diameter end according to
Secondary reduction；
Step S3 successively carries out the 1st, 2 ... n times spinning on corresponding core model, gradually reduces the wall thickness or semi-cone angle of blank,
Until obtaining the blank after final passage mould pressing；
Step S4 carries out turnery processing, excision remainder punching to the blank after final passage mould pressing.
2. a kind of spin forming method of flanged pin deep taper thin-wall revolving meber according to claim 1, characterized in that step
Core model in rapid S2 is made of several core model unit spliceds, and each core model unit is sequentially distributed along the axis of core model.
3. a kind of spin forming method of flanged pin deep taper thin-wall revolving meber according to claim 2, characterized in that institute
It states core model to be driven by machine tool chief axis, machine tool chief axis includes the different main axle unit of several revolving speeds, main axle unit and core model unit one
One is corresponding, and core model unit follows corresponding main axle unit to rotate.
4. a kind of spin forming method of flanged pin deep taper thin-wall revolving meber according to claim 2, characterized in that its
It is characterized in, the ratio between revolving speed of two neighboring core model unit is 0.65 ~ 0.95.
5. a kind of spin forming method of flanged pin deep taper thin-wall revolving meber according to claim 2, characterized in that its
It is characterized in, in two neighboring spinning pass: the quantity of the latter spinning pass core form unit is greater than previous spinning pass
The quantity of core form unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910176820.9A CN109909356B (en) | 2019-03-08 | 2019-03-08 | Spinning forming method of deep-cone-shaped thin-wall rotating part with flange |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910176820.9A CN109909356B (en) | 2019-03-08 | 2019-03-08 | Spinning forming method of deep-cone-shaped thin-wall rotating part with flange |
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| CN109909356A true CN109909356A (en) | 2019-06-21 |
| CN109909356B CN109909356B (en) | 2020-06-09 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110681753A (en) * | 2019-10-08 | 2020-01-14 | 江西洪都航空工业集团有限责任公司 | Method for forming large radial flange revolving body part |
| CN111085590A (en) * | 2019-12-04 | 2020-05-01 | 北京动力机械研究所 | Deep conical part precision forming process method |
| CN112058937A (en) * | 2020-07-29 | 2020-12-11 | 宁波大学 | Long hollow tube inner wall thinning forming method |
| CN112317589A (en) * | 2020-11-16 | 2021-02-05 | 西安航天动力机械有限公司 | Process method for controlling angle and straightness accuracy of spinning cone |
| CN114011940A (en) * | 2021-11-08 | 2022-02-08 | 四川航天长征装备制造有限公司 | Engine shell spinning method for eliminating surface cutter-receiving marks |
| CN114700406A (en) * | 2022-03-22 | 2022-07-05 | 西北工业大学 | Near-net spinning forming process of large thin-wall high-temperature alloy component |
-
2019
- 2019-03-08 CN CN201910176820.9A patent/CN109909356B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110681753A (en) * | 2019-10-08 | 2020-01-14 | 江西洪都航空工业集团有限责任公司 | Method for forming large radial flange revolving body part |
| CN111085590A (en) * | 2019-12-04 | 2020-05-01 | 北京动力机械研究所 | Deep conical part precision forming process method |
| CN112058937A (en) * | 2020-07-29 | 2020-12-11 | 宁波大学 | Long hollow tube inner wall thinning forming method |
| CN112317589A (en) * | 2020-11-16 | 2021-02-05 | 西安航天动力机械有限公司 | Process method for controlling angle and straightness accuracy of spinning cone |
| CN112317589B (en) * | 2020-11-16 | 2023-11-10 | 西安航天动力机械有限公司 | Technological method for controlling angle and straightness accuracy of spinning cone |
| CN114011940A (en) * | 2021-11-08 | 2022-02-08 | 四川航天长征装备制造有限公司 | Engine shell spinning method for eliminating surface cutter-receiving marks |
| CN114700406A (en) * | 2022-03-22 | 2022-07-05 | 西北工业大学 | Near-net spinning forming process of large thin-wall high-temperature alloy component |
| CN114700406B (en) * | 2022-03-22 | 2023-08-15 | 西北工业大学 | Near-net spin forming process of large thin-wall high-temperature alloy component |
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Application publication date: 20190621 Assignee: Ningbo Science and Technology Innovation Association Assignor: Ningbo University Contract record no.: X2023980033633 Denomination of invention: A Spinning Forming Method for Deep Tapered Thin Wall Rotating Parts with Flanges Granted publication date: 20200609 License type: Common License Record date: 20230317 |
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