CN105436312A - Cold stamping die and molding method for grid flow guide plate - Google Patents
Cold stamping die and molding method for grid flow guide plate Download PDFInfo
- Publication number
- CN105436312A CN105436312A CN201510908733.XA CN201510908733A CN105436312A CN 105436312 A CN105436312 A CN 105436312A CN 201510908733 A CN201510908733 A CN 201510908733A CN 105436312 A CN105436312 A CN 105436312A
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- China
- Prior art keywords
- die
- punch
- pressing plate
- grid
- grid deflector
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention discloses a cold stamping die and a molding method for a grid flow guide plate. The cold stamping die comprises a female die body and a male die body. Guiding pillars for the male die body to move vertically are arranged at the positions, close to the two ends, of the female die body respectively. The upper side of the female die body is provided with a pressing plate. The male die body is arranged on the upper side of the pressing plate. An elastic body is arranged between the pressing plate and the male die body. The pressing plate and the male die body are connected to the guiding pillars in a sleeving manner. A punch is arranged on the lower side of the male die body. The punch is opposite to a die cavity formed in the upper surface of the female die body and used for molding. A die handle is fixed to the upper side of the male die body. The molding method includes the four steps that discharging is conducted, prefabricated holes are machined, a single row of prefabricated long round holes are punched, and remaining prefabricated long round holes are punched in sequence. The molding die is simple in structure, low in manufacturing cost, short in period, convenient to use and capable of meeting the requirement that flangings of the long round holes of the grid flow guide plate are arranged along an arc surface normal, and the defect that when the grid flow guide plate is overall subjected to flanging molding, flangings are likely to crack is overcome.
Description
Technical field
The invention belongs to sheet metal component processing technique field, be specifically related to a kind of cold punching die and manufacturing process of grid deflector of the various large scale deflector sheet metal components that is applicable to be shaped.
Background technology
Grid water conservancy diversion plate parts is comparatively extensive in the application of the field such as Aero-Space and track traffic.This type of part, when air-flow passes, not only will ensure certain throughput, simultaneously very strict to noise control, therefore requires that the precision of its water conservancy diversion position and profile is higher.
Processing method comparatively conventional mostly at present is monolithic molding, these are many to the functional module demand of mould, structure is also very complicated, such die manufacturing cycle and cost higher, there is the situations such as flange cracking in this method simultaneously, and the angular position of flange and arc profile center exist comparatively big error, element precision is poor.
Summary of the invention
The object of the invention is the cold punching die and the manufacturing process that propose a kind of grid deflector, overcome the deficiencies in the prior art, its structure is simple, low cost of manufacture, cycle are short, easy to use, can ensure the requirement of grid deflector slotted hole flange along arc surface normal, when effectively avoiding the overall flanging forming of grid cowling panel, the flange place defect such as easily to ftracture produces.
In order to reach above-mentioned purpose of design, the technical solution used in the present invention is as follows:
A cold punching die for grid deflector, comprises die and punch; Described die is respectively equipped with the lead moved up and down for described punch near two ends place, be provided with pressing plate on the upside of die, is provided with punch on the upside of pressing plate, is provided with elastomer between described pressing plate and punch, and pressing plate and punch are all socketed on lead; Be provided with drift on the downside of described punch, the die cavity that drift and die upper surface are provided with for being shaped is oppositely arranged; Die shank is fixed on the upside of described punch.
Preferably, described die upper surface is provided with exterior arc surface, and radius is equal with grid deflector inner arc surface radius; Described pressing plate lower surface is provided with inner arc surface, and radius is equal with grid deflector exterior arc surface radius.
Preferably, described die upper surface is provided with three locating pieces putting location for grid deflector; Described locating piece is provided with push rod, and on push rod, cover has spring, and push rod end is provided with primary nut, and locating piece is arranged in slideway by push rod, primary nut, spring.
Preferably, described die is provided with two guide fingers, and pressing plate is socketed on guide finger.
Preferably, described pressing plate and elastomer are provided with the escape groove for dodging punch; Described die is designed with lead escape groove and push rod escape groove.
Preferably, described two leads are connected with pressing plate by shaft shoulder face, end-face helical and big nut.
Preferably, described punch position chamfering 30 ° ~ 45 °.
The present invention also provides a kind of manufacturing process of grid deflector, and its concrete steps are: the first step, blanking: the development size of computation grid deflector, adopts single-piece blank material under laser cutting or numerical control stamping;
Second step, processing pre-manufactured hole: flanging process calculates, prefabricated slotted hole arrangement Size calculation, the spacing of often arranging prefabricated slotted hole is equal with the spacing after flange, and the distance often between row is the arc length of angle neutral line after flanging forming; Adopt the prefabricated slotted hole of numerical control stamping stamping-out;
3rd step, single punching press: adopt the capable location of the locating piece on prefabricated slotted hole and die, punch is descending, pass to pressing plate by the pressure that compresses elastomeric produces, and compresses blank material, and the punch blank material of punch forms slotted hole, completes the punching press of first row;
4th step, circumference punching press successively: along the circumferential direction, the prefabricated slotted hole of punching press residue row, obtains grid deflector successively.
Preferably, described slotted hole periphery abate.
The advantage that the present invention has and good effect are: its structure is simple, low cost of manufacture, cycle are short, easy to use, can ensure the requirement of grid deflector slotted hole flange along arc surface normal, when effectively avoiding the overall flanging forming of grid cowling panel, the flange place defect such as easily to ftracture produces.
Adopt the be shaped part quality that of this method to stablize, good integrity, dimensional accuracy is high, and passing rate of processing is high, ensure that the dimensional accuracy of part; Reduce the complexity of mould, conventional punch and matrix structure can realize part forming, saves processing cost; While meeting the required precision of deflector arc profile, can also ensure that slotted hole flange position distributes along arc profile normal direction.
1) simplify mould structure, adopt conventional punch and matrix can realize grid deflector and be shaped, shorten the Mould Machining cycle, reduce Mould Machining cost;
2), when avoiding part monolithic molding, the generation of part and the defect such as mould docile is not in place, flange place easily ftractures, improves the machining accuracy of part;
3) first single punching press is adopted, then sequential punching successively, slotted hole flange position can be realized and distribute along arc profile normal direction.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of grid deflector of the present invention;
Fig. 2 is expansion and the pre-manufactured hole blank drawing of grid deflector of the present invention;
Fig. 3 is grid deflector press forming die structure chart of the present invention;
Fig. 4 is mould punching of the present invention laminating schematic diagram;
Fig. 5 is the stereogram of grid deflector press forming die of the present invention.
In figure:
1, die; 2, pressing plate; 3, lead; 4, punch; 5, elastomer; 6, locating piece; 7, push rod; 8, spring; 9, guide finger; 10, die cavity; 11, escape groove; 12, die shank; 13, shaft shoulder face; 14, slideway; 15, soket head cap screw; 16, big nut; 17, primary nut; 18, lead escape groove; 19, push rod escape groove; 20, grid deflector; 30, blank material, 31, slotted hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present invention are described in further detail.
Shown in Fig. 1, the shape of the grid deflector 20 that the present invention will be shaped.
Shown in Fig. 2, the shape of the blank material 30 that this grid deflector shaping dies uses and prefabricated slotted hole 31, described blank 30 stamping-out has prefabricated slotted hole 31.
Shown in Fig. 3-5, a kind of grid deflector cold punching die, comprises fixing die 1 and moveable punch 4; Described die 1 is respectively equipped with the lead 3 moved up and down for described punch 4 near two ends place, the pressing plate 2 for compressing grid deflector and discharging is provided with on the upside of die 1, punch 4 is provided with on the upside of pressing plate 2, be provided with elastomer 5 between described pressing plate 2 and punch 4, pressing plate 2 and punch 4 are all socketed on lead 3; Be provided with drift on the downside of described punch 4, the die cavity 10 that drift and die 1 upper surface are provided with for being shaped is oppositely arranged.
Described die 1 upper surface is provided with exterior arc surface, and radius is equal with grid deflector inner arc surface radius; Described pressing plate 2 lower surface is provided with inner arc surface, and radius is equal with grid deflector exterior arc surface radius; Die exterior arc surface, pressing plate inner arc surface, between punch and pressing plate, be provided with elastomeric structure, make elastomer compress the pressure produced and pass to pressing plate, the shaping of grid cowling panel arc surface can be realized, and play the effect compressing cowling panel when flange slotted hole.
Described die 1 upper surface is provided with three locating pieces 6 putting location for grid deflector; Described three locating pieces 6, by push rod 7 and primary nut 17, attach it in slideway 14, and return initial position by spring 8.
Described die 1 is provided with two guide fingers 9; Described two guide fingers 9 take interference fit and die 1 to fix, and angularly distribute.
Described locating piece 6 is provided with push rod 7, and on push rod 7, cover has spring 8; This structure can ensure that blank is accurately located when being shaped, and after being shaped, grid deflector is ejected die die cavity.
Described pressing plate 2 and elastomer 5 are provided with the escape groove 11 for dodging punch 4 drift; Ensure that the drift of punch 4 enters the die cavity of die 1 smoothly, and the material unloading function after shaping taken into account by pressing plate 2.
Described punch 4 forcer position chamfering 30 ° ~ 45 °; Ensure that punch can easily enter in grid deflector pre-manufactured hole, and after ensureing flange, mouth position is smooth.
Described die 1 is designed with lead escape groove 18 and push rod escape groove 19, in grid deflector forming process, dodges lead 3, big nut 16 and push rod 7, primary nut 17.
Described two leads 3 are connected with pressing plate 2 by shaft shoulder face 13, end-face helical and big nut 16.
Die shank 12 is fixed by five soket head cap screws 15 on the upside of described punch 4.
Its course of work is: blank 30 is placed die 1, position with three locating pieces 6 with three in the slotted hole 31 that blank 30 first row is prefabricated, punch 4 is descending along lead 3, when pressing plate 2 contacts blank 30 surface, start compresses elastomeric 5, the pressure that elastomer 5 produces is delivered to pressing plate 2, compressing component 7, punch 4 continues descending, enter in the die cavity 10 of die 1, locating piece 6 moves down along slideway 14, punch 4 unloads up, locating piece 6 returns to initial position by the spring 8 on push rod 7, and part is ejected, complete first row prefabricated slotted hole 31 flange punching press on blank 30, take out blank 30, complete the punching press of second row prefabricated slotted hole 31 flange, Figure 5 shows that the schematic diagram of two rows prefabricated slotted hole 31 flange punching press, complete the 3rd row successively, 4th row and the punching press of the 5th row prefabricated slotted hole 31, realize the shaping of grid deflector.
The cold punching forming method of described grid deflector, its concrete steps are:
The first step, blanking: the development size of computation grid deflector: length=(Π × neutral line diameter × grid cowling panel arc angle) ÷ 360, height is grid cowling panel height, adopts single-piece blank material under laser cutting or numerical control stamping;
Second step, processing pre-manufactured hole: flanging process calculates; Neutral line width-2 after prefabricated slotted hole width=flange × (after flange after height-0.43 × flange fillet radius-0.72 × blank thickness), neutral line length-prefabricated slotted hole width after prefabricated slotted hole length=flange; Prefabricated slotted hole arrangement size, often in row, the spacing of prefabricated slotted hole is equal with the spacing after flange, and the distance often between row is the arc length of angle neutral line after flanging forming; Adopt the prefabricated slotted hole 31 of numerical control stamping stamping-out;
3rd step, single punching press: adopt locating piece 6 row on prefabricated slotted hole 31 and die 1 to locate, punch 4 is descending, and the pressure that compresses elastomeric 5 produces is passed to pressing plate 2, compress blank material, complete the punching press of first row;
4th step, circumference punching press successively: along the circumferential direction, the prefabricated slotted hole 31 of punching press residue row, obtains grid deflector successively.
Above content is the further description done the present invention in conjunction with concrete preferred embodiment, and being convenient to these those skilled in the art can understand and apply the invention, and can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, some simple deduction or replace can also be made without departing from the inventive concept of the premise, and need not through performing creative labour.Therefore, those skilled in the art are according to announcement of the present invention, and the simple modifications made the present invention all should within protection scope of the present invention.
Claims (9)
1. a cold punching die for grid deflector, is characterized in that: comprise die and punch; Described die is respectively equipped with the lead moved up and down for described punch near two ends place, be provided with pressing plate on the upside of die, is provided with punch on the upside of pressing plate, is provided with elastomer between described pressing plate and punch, and pressing plate and punch are all socketed on lead; Be provided with drift on the downside of described punch, the die cavity that drift and die upper surface are provided with for being shaped is oppositely arranged; Die shank is fixed on the upside of described punch.
2. the cold punching die of grid deflector according to claim 1, is characterized in that: described die upper surface is provided with exterior arc surface, and radius is equal with grid deflector inner arc surface radius; Described pressing plate lower surface is provided with inner arc surface, and radius is equal with grid deflector exterior arc surface radius.
3. the cold punching die of grid deflector according to claim 2, is characterized in that: described die upper surface is provided with three locating pieces putting location for grid deflector; Described locating piece is provided with push rod, and on push rod, cover has spring, and push rod end is provided with primary nut, and locating piece is arranged in slideway by push rod, primary nut, spring.
4. the cold punching die of grid deflector according to claim 3, is characterized in that: described die is provided with two guide fingers, and pressing plate is socketed on guide finger.
5. the cold punching die of grid deflector according to claim 3, is characterized in that: described pressing plate and elastomer are provided with the escape groove for dodging punch; Described die is designed with lead escape groove and push rod escape groove.
6. the cold punching die of grid deflector according to claim 5, is characterized in that: described two leads are connected with pressing plate by shaft shoulder face, end-face helical and big nut.
7. the cold punching die of grid deflector according to claim 5, is characterized in that: described punch position chamfering 30 ° ~ 45 °.
8. a manufacturing process for the grid deflector described in above-mentioned any one claim, is characterized in that: its concrete steps are:
The first step, blanking: the development size of computation grid deflector, adopt single-piece blank material under laser cutting or numerical control stamping;
Second step, processing pre-manufactured hole: flanging process calculates, prefabricated slotted hole arrangement Size calculation, the spacing of often arranging prefabricated slotted hole is equal with the spacing after flange, and the distance often between row is the arc length of angle neutral line after flanging forming; Adopt the prefabricated slotted hole of numerical control stamping stamping-out;
3rd step, single punching press: adopt the capable location of the locating piece on prefabricated slotted hole and die, punch is descending, pass to pressing plate by the pressure that compresses elastomeric produces, and compresses blank material, and the punch blank material of punch forms slotted hole, completes the punching press of first row;
4th step, circumference punching press successively: along the circumferential direction, the prefabricated slotted hole of punching press residue row, obtains grid deflector successively.
9. the manufacturing process of grid deflector according to claim 8, is characterized in that: described slotted hole periphery abate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908733.XA CN105436312A (en) | 2015-12-10 | 2015-12-10 | Cold stamping die and molding method for grid flow guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908733.XA CN105436312A (en) | 2015-12-10 | 2015-12-10 | Cold stamping die and molding method for grid flow guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105436312A true CN105436312A (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510908733.XA Pending CN105436312A (en) | 2015-12-10 | 2015-12-10 | Cold stamping die and molding method for grid flow guide plate |
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| CN (1) | CN105436312A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903846A (en) * | 2016-06-28 | 2016-08-31 | 昆山科森科技股份有限公司 | Auxiliary blanking jig |
| CN108035449A (en) * | 2017-11-30 | 2018-05-15 | 江苏标榜装饰新材料股份有限公司 | A kind of micropunch abatvoix |
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-
2015
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Patent Citations (7)
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| JPS55156625A (en) * | 1979-05-22 | 1980-12-05 | Nippon Light Metal Co Ltd | Multiple-head press |
| CN86206375U (en) * | 1986-08-29 | 1987-12-09 | 大连机车车辆工厂 | Cold pressing mould for making radiator pieces |
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| CN103157712A (en) * | 2011-12-19 | 2013-06-19 | 株式会社理光 | Thin plate burring processing method and thin plate female screw-forming method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903846A (en) * | 2016-06-28 | 2016-08-31 | 昆山科森科技股份有限公司 | Auxiliary blanking jig |
| CN108035449A (en) * | 2017-11-30 | 2018-05-15 | 江苏标榜装饰新材料股份有限公司 | A kind of micropunch abatvoix |
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Application publication date: 20160330 |
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