CN106424355B - Thin-wall annular part molding die and forming method - Google Patents
Thin-wall annular part molding die and forming method Download PDFInfo
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- CN106424355B CN106424355B CN201610858241.9A CN201610858241A CN106424355B CN 106424355 B CN106424355 B CN 106424355B CN 201610858241 A CN201610858241 A CN 201610858241A CN 106424355 B CN106424355 B CN 106424355B
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- thin
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- edge rolling
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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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
- B21D53/00—Making other particular articles
- B21D53/92—Making other particular articles other parts for aircraft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Forging (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a kind of thin-wall annular part molding die and forming methods, the molding die carries out bending and edge rolling for treating molding thin-wall part, molding die of the present invention includes: the lower template being oppositely arranged and cope plate, the upper surface of lower template is equipped with the cavity plate affixed with it, the lower surface of cope plate is equipped with the punch-pin affixed with it, the punch-pin being fixed on cope plate includes the bending punch for applying bending pressure and the edge rolling punch-pin for applying edge rolling pressure, the cavity plate being fixed in lower template includes and corresponding first cavity plate of bending punch and the second cavity plate corresponding with edge rolling punch-pin.Molding thin-wall part is treated by using same molding die and carries out bending and edge rolling, avoids the cumbersome of segmental machining, and avoids multiple welding to influence final product quality, the thin-wall annular part of forming method processing of the present invention is due to integrally formed, processing quality is good, and saves process, high reliablity.
Description
Technical field
The present invention relates to Aero Engine Die & Mould forming fields, particularly, be related to a kind of thin-wall annular part molding die and
Forming method.
Background technique
Large-sized ring part is widely used in aerospace field, such as aero-engine supporting plate, but existing processing technology one
As need for supporting plate to be divided into left and right two halves, component a and component b as shown in Figure 1 are welded after bending forming again respectively, due to branch
Plate each side has a weld seam, and part strength is poor, more easy to crack in use, reduces aero-engine zero
The service life of part.
CN104418698C discloses a kind of large-sized ring part method for processing forming comprising: segmentation be swaged into square billet or
Steel plate cuts straight strip-shaped blank → processing datum → machining cross sectional shape → compression moulding → setting-out and goes end → processing weldering
Groove → be welded into circular ring shape part → machining on construction site is connect, specifically, two asymmetrical profiled-cross-section blanks are passed through into welding
Form, become the blank of symmetrical section, then suppressed on hydraulic press or horizontal bending machine, pressing process process
It is as follows: one end of the blank after above-mentioned welding to be placed between punch-pin and cavity plate, with the closure of mold, between convex concave mould
Blank compression moulding, opening mold carries out feeding, and each feeding amount is less than the length of punch-pin, then closure compacting again,
And so on, until final step compacting is completed.
As it can be seen that the processing of existing large-sized special-shaped annular element needs sectional forming and processes through multiple welding, not only process
Process is complicated, and haves the defects that weld seam leads to poor reliability more.
Summary of the invention
The present invention provides a kind of thin-wall annular part molding die and forming methods, are added with solving existing thin-wall annular part
Work complex forming technology, processing quality technical problem to be improved.
The technical solution adopted by the invention is as follows:
According to an aspect of the present invention, a kind of thin-wall annular part molding die is provided, for treating molding thin-wall part
It carries out bending and edge rolling, molding die of the present invention includes: the lower template being oppositely arranged and cope plate, the upper surface of lower template is equipped with
The cavity plate affixed with it, the lower surface of cope plate are equipped with the punch-pin affixed with it, and the punch-pin being fixed on cope plate includes being used for
Apply the bending punch of bending pressure and the edge rolling punch-pin for applying edge rolling pressure, the cavity plate packet being fixed in lower template
Include and corresponding first cavity plate of bending punch and the second cavity plate corresponding with edge rolling punch-pin.
Further, the inner concave of the first cavity plate is equipped with the through-hole for being connected to lower template, is equipped in through-hole and supports with lower template
The elastic component that connects and on elastic component for springing back the jacking block of the thin-wall part after punching press.
Further, it is equipped in the middle part of the inner concave of the second cavity plate and concaves towards lower template and cross section is in the groove of semicircular arc,
Edge rolling punch-pin includes the linkage section affixed with cope plate and is used for the cylindrical section of edge rolling thin-wall part with matching grooves.
Further, lower template is equipped with the guide post for the mobile carry out guide-localization to cope plate, sets on cope plate
There is the guide sleeve with guide post cooperation.
Further, lower template is equipped with the locating part of the extreme position for limiting cope plate displacement.
According to another aspect of the present invention, a kind of thin-wall annular part forming method is also provided, thin-wall part to be formed is whole
Butt welding end after body bending, edge rolling forms the thin-wall annular part of single weld seam, and forming method successively includes blanking, bending, volume
Circle welding, fills wax, shapes, going wax and correction, and bending and edge rolling step share above-mentioned molding die.
Further, the step of forming includes gradually increasing punching press amount in stamping die, is shaped through Multi-step forming.
Further, the step of correction is to correct after plug is inserted into thin-wall annular part inner cavity through stamping die punching press.
Further, plug makes in batches, and the plug substep of at least two outer diameters is selected to correct in aligning step.
Further, thin-wall annular part is aero-engine supporting plate.
The invention has the following advantages:
Thin-wall annular part molding die and forming method of the present invention, treat molding thin-walled by using same molding die
Part carries out bending and edge rolling, avoids the cumbersome of segmental machining, and avoids multiple welding influence final product quality, present invention molding
For the thin-wall annular part of method processing due to integrally formed, processing quality is good, and saves process, high reliablity.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the existing molding structural schematic diagram of aero-engine supporting plate；
Fig. 2 is the structural schematic diagram of preferred embodiment of the present invention thin-wall annular part molding die；
Fig. 3 is the structural schematic diagram of edge rolling punch-pin in the preferred embodiment of the present invention；
Fig. 4 is the flow diagram of preferred embodiment of the present invention thin-wall annular part forming method；
Fig. 5 is the structural schematic diagram of correction plug in preferred embodiment of the present invention forming method.
Description of symbols:
1, cope plate；11, die shank；12, punch-pin；121, bending punch；
122, edge rolling punch-pin；1221, linkage section；1222, cylindrical section；
2, lower template；21, cavity plate；211, the first cavity plate；212, the second cavity plate；
213, through-hole；214, groove；22, elastic component；23, jacking block；24, guide post；25, limited block；3, plug.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Referring to Fig. 2, the preferred embodiment of the present invention provides a kind of thin-wall annular part molding die, molding for treating
Thin-wall part carries out bending and edge rolling, the present embodiment molding die include: the lower template 2 being oppositely arranged and cope plate 1, lower template 2
Upper surface be equipped with the cavity plate 21 affixed with it, the lower surface of cope plate 1 is equipped with the punch-pin 12 affixed with it, is fixed in cope plate
Punch-pin 12 on 1 includes the bending punch 121 for applying bending pressure and the edge rolling punch-pin for applying edge rolling pressure
122, the cavity plate 21 being fixed in lower template 2 include first cavity plate 211 corresponding with bending punch 121 and with edge rolling punch-pin 122
Corresponding second cavity plate 212.
The present embodiment through molding die by successively carrying out bending and edge rolling operation to the thin-wall part after blanking, to avoid
Existing shaping thin wall part setting down it is cumbersome, thin-wall annular part is integrally formed, and subsequent welding only needs one
Secondary welding forms single weld seam, effectively increases the processing quality and reliability of thin-wall annular part.
Referring to Fig. 2, in the present embodiment, lower template 2 is fixed on processing datum, and cavity plate 21 is fastened through screw, pin etc.
Part is solidly connected to the upper surface of lower template 2, and the upper surface of cope plate 1 is equipped with the die shank 11 connecting with punching mechanism, under cope plate 1
Surface is through the affixed bending punch 121 such as screw, pin and edge rolling punch-pin 122, the present embodiment bending punch 121, edge rolling punch-pin 122
Parallel interval setting, and the synchronization action under the drive of cope plate 1.The inner concave of first cavity plate 211 is equipped with and is connected to lower template 2
Through-hole 213, the elastic component 22 abutted with lower template 2 is equipped in through-hole 213 and is used to spring back punching press on elastic component 22
The jacking block 23 of thin-wall part afterwards.The present embodiment, can be in bending punch by the way that elastic component 22 and jacking block 23 are arranged in through-hole 213
The trouble that can not be unloaded caused by avoiding thin-wall part to be connected in the first cavity plate 211 when 121 punching press, ensure that the continuous of processing
Property.
It is equipped in the present embodiment, in the middle part of the inner concave of the second cavity plate 212 and concaves towards lower template 2 and cross section is in semicircular arc
Groove 214, referring to Fig. 3, edge rolling punch-pin 122 includes the linkage section 1221 affixed with cope plate 1 and matches with groove 214 for rolling up
The cylindrical section 1222 of circle thin-wall part.
The present embodiment, which will pass through, to be bent and edge rolling operation concentrates on same molding die, be conducive to reduce workpiece turnover etc. pair
The influence of processing efficiency.
In the present embodiment, lower template 2 is equipped with the guide post 24 for the mobile carry out guide-localization to cope plate 1, upper mold
Plate 1 is equipped with the guide sleeve cooperated with guide post, by the cooperation of guide sleeve and guide post 24, axial displacement accuracy when ensure that punching press.
Preferably, lower template 2 is equipped with the locating part of the extreme position for limiting the displacement of cope plate 1.In the present embodiment,
The periphery of first cavity plate 211 and/or the second cavity plate 212 is equipped with the limited block 25 abutted with the periphery of punch-pin to limit, thus right
Punching press amount is controlled, and the deformation of thin-wall part caused by overshooting is avoided.
According to another aspect of the present invention, a kind of thin-wall annular part forming method is also provided, thin-wall part to be formed is whole
Butt welding end after body bending, edge rolling forms the thin-wall annular part of single weld seam, and referring to Fig. 4, the present embodiment forming method is successively wrapped
Blanking is included, bending, edge rolling, welding, wax is filled, shapes, goes wax and correction, wherein bending and edge rolling step share above-described embodiment
Molding die.
The present embodiment thin-wall annular part forming method, improves traditional moulding process, by whole successively bending, edge rolling,
Welding, so that thin-wall annular part after molding only has a weld seam, effectively improves product intensity；And it is carried out using one set of die curved
Bent, edge rolling operation, processing convenience are easy to operate.
Specifically, in the present embodiment forming method, blanking step are as follows: carry out blanking by processing request blank size.Trimming
After good outer dimension, blank is placed on to the upper surface of the first cavity plate 211 shown in Fig. 2, in bending punch 121 and when punching press
Brake forming under the collective effect of one cavity plate 211；Curved blank is placed on the upper surface of the second cavity plate 212 by second step,
Edge rolling forms under the collective effect of edge rolling punch-pin 122 and the second cavity plate 212 when punching press.After bending and edge rolling, welded in opening
Simultaneously polishing welding seams are connect, paraffin or rosin are then filled in closing inner chamber.Part after filling wax is placed in stamping die and is carried out
Forming operation.
The present embodiment stamping die includes the upper cavity die for being fixed in cope plate lower surface, is fixed under lower template upper surface
Thin-wall annular part after filling wax is placed on recessed model face, the positive of upper cavity die and lower cavity die is utilized to carry out by cavity plate
Forming operation.In order to avoid in thin-wall annular part forming process pressure side, resilience the defects of, the present embodiment shape the step of
Including gradually increasing punching press amount in stamping die, shaped through Multi-step forming.In the present embodiment, when first time punching press upper cavity die with
Lower cavity die is not completely closed, i.e. first time punching press not exclusively in place, completes preforming technique；Then it is required according to punching press, gradually
Increase punching press amount, until stamping die is closed completely, completes forming.
Preferably, in order to further increase forming accuracy, the present embodiment further includes aligning step after such shaping.This implementation
The step of example correction, is inserted into plug 3 (referring to Fig. 5) for the thin-wall annular part inner cavity after removing wax and corrects by stamping die punching press.
In the present embodiment, aligning step preferably includes multiple correction link, until thin-wall annular part reaches the processing dimension of setting.This reality
It applies a plug to make in batches, selects the plug 3 of at least two outer diameters to correct in aligning step step by step, it is preferable that the end of plug
Equipped with guide portion, the guided portion of plug imports and taps into supporting plate inner cavity, and is corrected using the stamping die of forming.
In the present embodiment, thin-wall annular part is aero-engine supporting plate.Compared to previous moulding process, the present embodiment at
Type method and mold are convenient and reliable, and final products part only has a weld seam, meet part strength and requirement, another calibrated
Part machined surface profile degree is good afterwards.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of thin-wall annular part forming method, the thin-wall annular part is aero-engine supporting plate, which is characterized in that will be to
Butt welding end after molding thin-wall part integrally bending, edge rolling forms the thin-wall annular part of single weld seam, and the forming method is successively
Including blanking, bending, edge rolling, welding, fill wax, shape, go wax and correction, the bending and the edge rolling step share it is a set of at
Pattern tool；The molding die includes: the lower template (2) being oppositely arranged and cope plate (1), the upper surface of the lower template (2)
Equipped with the cavity plate (21) affixed with it, the lower surface of the cope plate (1) is equipped with the punch-pin (12) affixed with it, is fixed in described
Punch-pin (12) on cope plate (1) includes for applying the bending punch of bending pressure (121) and for applying edge rolling pressure
The edge rolling punch-pin (122) of power, the cavity plate (21) being fixed on the lower template (2) includes corresponding with the bending punch (121)
The first cavity plate (211) and the second cavity plate (212) corresponding with edge rolling punch-pin (122), the bending punch (121) and volume
The setting of boss mould (122) parallel interval, and the synchronization action under the drive of cope plate (1)；The step of forming, is included in punching
Gradually increase punching press amount on compression mould, is shaped through Multi-step forming；The step of forming, specifically includes: fovea superior when first time punching press
Mould is not completely closed with lower cavity die, i.e. first time punching press not exclusively in place, completes preforming technique；Then it is required according to punching press,
It is stepped up punching press amount, until stamping die is closed completely, completes forming；The step of correction is in the thin-walled ring
Shape part inner cavity corrects after being inserted into plug through the stamping die punching press, and the plug makes in batches, selects in the aligning step
The plug substep of at least two outer diameters corrects.
2. thin-wall annular part forming method according to claim 1, which is characterized in that
The inner concave of first cavity plate (211) is equipped with the through-hole (213) for being connected to the lower template (2), the through-hole (213)
It is interior to be used for after springing back punching press equipped with the elastic component (22) abutted with the lower template (2) and on the elastic component (22)
The jacking block (23) of thin-wall part.
3. thin-wall annular part forming method according to claim 1, which is characterized in that
It is equipped in the middle part of the inner concave of second cavity plate (212) and concaves towards the lower template (2) and cross section is in the recessed of semicircular arc
Slot (214), the edge rolling punch-pin (122) include the linkage section (1221) affixed with the cope plate (1) and with the groove
(214) matching is used for the cylindrical section (1222) of edge rolling thin-wall part.
4. thin-wall annular part forming method according to any one of claims 1 to 3, which is characterized in that
The lower template (2) is equipped with the guide post for the mobile carry out guide-localization to the cope plate (1), the cope plate
(1) it is equipped with the guide sleeve cooperated with the guide post.
5. thin-wall annular part forming method according to any one of claims 1 to 3, which is characterized in that
The lower template (2) is equipped with the locating part of the extreme position for limiting the cope plate (1) displacement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610858241.9A CN106424355B (en) | 2016-09-28 | 2016-09-28 | Thin-wall annular part molding die and forming method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610858241.9A CN106424355B (en) | 2016-09-28 | 2016-09-28 | Thin-wall annular part molding die and forming method |
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| CN106424355A CN106424355A (en) | 2017-02-22 |
| CN106424355B true CN106424355B (en) | 2019-03-01 |
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