CN107812796A - A kind of automatic discharging ECAP Die - Google Patents
A kind of automatic discharging ECAP Die Download PDFInfo
- Publication number
- CN107812796A CN107812796A CN201610821761.2A CN201610821761A CN107812796A CN 107812796 A CN107812796 A CN 107812796A CN 201610821761 A CN201610821761 A CN 201610821761A CN 107812796 A CN107812796 A CN 107812796A
- Authority
- CN
- China
- Prior art keywords
- die
- mould
- pin
- cavity plate
- punch
- Prior art date
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/001—Extruding metal; Impact extrusion to improve the material properties, e.g. lateral extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/02—Removing or drawing-off work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention discloses a kind of automatic discharging ECAP Die, including upper die and lower die and device for discharging, the upper mould is provided with punch-pin, and punch-pin is fixed on upper bolster by punch retainer by screw and pin together with the upper padding plate for bearing punch-pin extruding force；The lower mould is provided with cavity plate, provided with sectional area shape is identical, access road of area equation, the corner passage and exit passageway for blank is produced severe plastic deformation in cavity plate, it is interference fitted outside cavity plate with centre circle, centre circle is interference fitted to form cavity plate component with outer ring, increase strength of concave mould, cavity plate component is fixed on die shoe by die block and by screw and pin together with lower bolster；The device for discharging include installed in upper mould wedge, wedge promotion under side-to-side movement sliding block, extruding when support slipper block and on sliding block extrude after backhaul when by blank eject cavity plate push rod.Upper and lower mould is oriented to by the guide pin bushing for being fixed on upper mould and the guide pillar for being fixed on lower mould, ensures that blank is accurately squeezed into cavity plate by punch-pin.The mould structure is simple, easy to operate, saves the time of mould release feeding between work step, and danger during extruding is greatly reduced, considerably improves production efficiency.
Description
Technical field
The present invention relates to a kind of mould, especially a kind of automatic discharging ECAP Die is ultra-fine for preparing
The mould of brilliant material, belongs to material processing field.
Background technology
Equal Channel Angular Pressing is a kind of severe plastic deformation technology, has strong grain refining capability, can be directly by material
The interior tissue of material refine to sub-micron or even nanoscale, and it is most effective to have become preparation high-performance bulk super fine crystal material at present
, one of the swiftest and the most violent technology of development, its principle is to set two cross sectional shape sizes identical, at a certain angle in cavity plate
Intersecting passage, during extruding, material passes through the corner of two passages under the promotion of punch-pin, produces local big shear plasticity and becomes
Shape, because the cross sectional shape of sample before and after extruding and area do not change, therefore it can be placed again into mould and be extruded, repeatedly
Extruding can make the dependent variable accumulation superposition of each deformation repeatedly, reach very big total deformation, material grains is significantly refined.
However, blank takes out difficulty from mould after technology extruding, mould generally use is split type, is connected with, every time after extruding
Mould will be dismantled, mould is separated and takes out blank by hand, mould need to be reinstalled when extruding next time, debugging of installing, greatly
It has impact on extruding efficiency, and mould occur often and flies out casualty accident.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency of the prior art, there is provided a kind of to prepare the automatic of super fine crystal material
Discharging ECAP Die.The mould structure is simple, easy to operate, saves the time of mould release feeding between work step, greatly
Danger during extruding is reduced to amplitude, considerably improves production efficiency.
To achieve the above object, the technical solution adopted by the present invention is：A kind of automatic discharging ECAP Die, it is special
Sign is：Including upper die and lower die and device for discharging, the upper mould is provided with punch-pin, and the punch-pin is by punch retainer by spiral shell
Nail and pin are fixed on upper bolster together with the upper padding plate for bearing punch-pin extruding force；The lower mould is provided with cavity plate, described recessed
In mould provided with sectional area shape is identical, access road of area equation, the corner passage for making blank produce severe plastic deformation and
Exit passageway, the cavity plate outside are interference fitted with centre circle, and centre circle is interference fitted to form cavity plate component with outer ring, and increase cavity plate is strong
Degree, cavity plate component are fixed on die shoe by die block and by screw and pin together with lower bolster；The discharging dress
Put including installed in the wedge of upper mould, wedge promotion under side-to-side movement sliding block, extruding when support slipper block and installation
Blank is ejected to the push rod of cavity plate in backhaul after being extruded on sliding block.The upper and lower mould is by being fixed on guide pin bushing and the fixation of upper mould
It is oriented in the guide pillar of lower mould, ensures that blank is accurately squeezed into cavity plate by punch-pin.
A kind of above-mentioned automatic discharging ECAP Die, it is characterised in that：Inclined-plane is provided with left and right sides of the wedge,
The sliding block is provided with the hole with wedge respective ramp, and the upper mould drives wedge oblique by the left side before running extruding downwards
Face, which coordinates, resets sliding block, drives wedge to be moved right by the right side slope driving sliding block when upper mould backhaul is run up.
A kind of above-mentioned automatic discharging ECAP Die, it is characterised in that：The sliding block bottom and the punch-pin are consolidated
Fixed board corresponding site sets the guide mechanism of promising slider guide.
A kind of above-mentioned automatic discharging ECAP Die, it is characterised in that：Positioning has been provided with the upper mould, has been connected
The die shank of effect is connect, the die shank and upper bolster offer the roulette of installation stop pin.
A kind of above-mentioned automatic discharging ECAP Die, it is characterised in that：Upper die and lower die rear portion both sides point
The hole of interference mounting guide sleeve and guide pillar is not provided with, and to be slidably matched, its gap is less than punch-pin and cavity plate for the guide pin bushing and guide pillar
Gap.
A kind of above-mentioned automatic discharging ECAP Die, it is characterised in that：The punch retainer is pacified provided with interference
Fill the hole of wedge, the wedge and punch retainer riveting.
A kind of above-mentioned automatic discharging ECAP Die, it is characterised in that：The die block is matched somebody with somebody provided with transition
The hole of installation block is closed, the block is pressed on lower bolster by the shoulder on die block.
The present invention has advantages below compared with prior art：1st, the present invention devises automatic discharge unit, saves work
The time of mould release feeding between step, realize continuously extruded, laid the foundation to carry out production in enormous quantities.
2nd, the present invention uses integral concave mould, and guide pillar, guide pin bushing are oriented to, and avoid punch-pin, cavity plate is gnawed cut the thing of hurting sb.'s feelings that flies out mutually
Therefore danger when extruding is greatly reduced.
3rd, it is simple in construction, it is easy to operate, production efficiency is considerably improved, good condition is created to repeat extruding, enters
And by repeatedly extruding the overall strain amount needed for accumulation, the crystal grain of fine uniform is made.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Description of reference numerals:
1-die shoe；2-lower bolster；3-sliding block；4-guide pillar；5-block；6-push rod；
7-guide pin bushing；8-punch retainer；9-wedge；10-upper padding plate；11-die shank；12-stop pin；
13-punch-pin；14-go up mould screw；15-go up mould pin；16-upper bolster；17-outer ring；18-centre circle；
19-cavity plate；20-blank；21-die block；22-lower mould screw；23-lower mould pin.
Embodiment
A kind of automatic discharging ECAP Die as shown in Figure 1, including upper die and lower die and device for discharging, it is described on
Mould is provided with punch-pin 13, and the punch-pin 13 by upper mould screw 14 and upper mould pin 15 and bears punch-pin 13 by punch retainer 8
The upper padding plate 10 of extruding force is fixed on upper bolster 16 together；The lower mould is provided with cavity plate 19, is provided with and cuts in the cavity plate 19
Area shape is identical, the access road of area equation, the corner passage and exit passageway for making the generation severe plastic deformation of blank 20,
The outside of cavity plate 19 is interference fitted with centre circle 18, and centre circle 18 forms cavity plate component with the interference fit of outer ring 17, increases cavity plate 19
Intensity, cavity plate component are fixed on down by die block 21 and by lower mould screw 22 and lower mould pin 23 together with lower bolster 2
On die holder 1；The device for discharging includes the wedge 9 installed in upper mould, in the sliding block 3 of side-to-side movement, extruding under wedge 9 promotes
The block 5 of support slipper 3 and the push rod 6 that blank 20 is ejected to cavity plate 19 on sliding block 3 after extruding during backhaul.On described,
Lower mould is oriented to by the guide pin bushing 7 for being fixed on upper mould and the guide pillar 4 for being fixed on lower mould, ensures that punch-pin 13 accurately squeezes into blank 20
Cavity plate 19.
In the present embodiment, the left and right sides of wedge 9 is provided with inclined-plane, and the sliding block 3 is provided with corresponding to wedge 9 oblique
The hole in face, the upper mould drive wedge 9 to reset sliding block 3 by left side inclined-plane cooperation before running extruding downwards, and upper mould returns
Wedge 9 is driven to be moved right by the right side slope driving sliding block 3 when journey is run up.
In the present embodiment, the bottom of sliding block 3 and the corresponding site of the punch retainer 8 set what promising sliding block 3 was oriented to
Guide mechanism.
In the present embodiment, positioning, the die shank 11 of connection function, the die shank 11 and upper bolster have been provided with the upper mould
16 offer the roulette of installation stop pin 12, avoid die shank 11 and upper bolster 16 from relatively rotating.
In the present embodiment, upper die and lower die rear portion both sides are respectively arranged with the hole of interference mounting guide sleeve 7 and guide pillar 4,
To be slidably matched, its gap is less than the gap of punch-pin 13 and cavity plate 19 for the guide pin bushing 7 and guide pillar 4.
In the present embodiment, the punch retainer 8 is provided with the hole of installation wedge 9, the wedge 9 and the mistake of punch retainer 8
It is full of and is connected with merging with riveting method.
In the present embodiment, the die block 21 is provided with the hole of interference fits installation block 5, and the block 5 is by recessed
Shoulder in mould fixed plate 21 is pressed on lower bolster 2.
In the present embodiment, the automatic discharging ECAP Die when in use, is positioned the mould installion with die shank 11
Onto forcing press, ready blank 20 is put to the access road as cavity plate 19.Press ram drives upper mould to run downwards,
The left side inclined-plane of wedge 9 and the left side contact of incline plane of sliding block 3, sliding block 3 is promoted to drive push rod 6 to reset to left movement, sliding block 3.Upper mould after
Continuous descending, punch-pin 13 contacts with blank 20 and applies pressure, moves downward blank 20, is constantly sheared by corner passage
Plastic deformation, enters exit passageway, when the afterbody of blank 20 fully enters corner passage, forcing press by the blank 20 of corner passage
Sliding block backhaul is run up, and the right side inclined-plane of wedge 9 and the right side contact of incline plane of sliding block 3, promotes sliding block 3 to move right, sliding block 3 drives
Blank 20 is ejected the exit passageway of cavity plate 19 by push rod 6.Because extrusion die channel cross-sectional shape is consistent, pass through mould crimp
Material section shape afterwards, area also do not change, can be placed again into mould and carry out crimp, and so on circulation is straight
Untill the small grains needed for obtaining.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention
Any simple modification, change and the equivalent structure transformation that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (8)
- A kind of 1. automatic discharging ECAP Die, it is characterised in that：Including upper die and lower die and device for discharging, the upper mould Punch-pin (13) is provided with, the punch-pin (13) is by punch retainer (8) by upper mould screw (14) and upper mould pin (15) with holding It is fixed on together on upper bolster (16) by the upper padding plate (10) of punch-pin (13) extruding force；The lower mould is provided with cavity plate (19), institute State and identical sectional area shape, access road of area equation are provided with cavity plate (19), blank (20) is produced severe plastic deformation Corner passage and exit passageway, be interference fitted with centre circle (18) outside the cavity plate (19), centre circle (18) and outer ring (17) mistake It is full of and cooperatively forms cavity plate component, increases cavity plate (19) intensity, cavity plate component is by die block (21) and by lower mould screw (22) it is fixed on lower mould pin (23) together with lower bolster (2) on die shoe (1)；The device for discharging includes being arranged on upper mould Wedge (9), the block (5) of support slipper (3) and installed when wedge (9) promotes sliding block (3), the extruding of lower side-to-side movement Blank (20) is ejected to the push rod (6) of cavity plate (19) in backhaul after being extruded on sliding block (3).
- 2. the upper and lower mould is oriented to by the guide pin bushing (7) for being fixed on upper mould and the guide pillar (4) for being fixed on lower mould, ensure punch-pin (13) blank (20) is accurately squeezed into cavity plate (19).
- A kind of 3. automatic discharging ECAP Die according to claim 1, it is characterised in that：The wedge (9) is left Right both sides are provided with inclined-plane, and the sliding block (3) is provided with to be run squeeze downwards with the hole of wedge (9) respective ramp, the upper mould Driving wedge (9) to coordinate by the left side inclined-plane before pressure resets sliding block (3), and upper mould backhaul drives wedge when running up (9) moved right by the right side slope driving sliding block (3).
- A kind of 4. automatic discharging ECAP Die according to claim 1, it is characterised in that：Under the sliding block (3) Portion and the punch retainer (8) corresponding site set the guide mechanism that promising sliding block (3) is oriented to.
- A kind of 5. automatic discharging ECAP Die according to claim 1, it is characterised in that：Set on the upper mould There are positioning, the die shank (11) of connection function, the die shank (11) and upper bolster (16) offer riding for installation stop pin (12) Slot apertures, die shank (11) and upper bolster (16) is avoided to relatively rotate.
- A kind of 6. automatic discharging ECAP Die according to claim 1, it is characterised in that：The upper die and lower die Rear portion both sides are respectively arranged with the hole of interference mounting guide sleeve (7) and guide pillar (4), and the guide pin bushing (7) and guide pillar (4) are matched somebody with somebody for slip Close, its gap is less than the gap of punch-pin (13) and cavity plate (19).
- A kind of 7. automatic discharging ECAP Die according to claim 1, it is characterised in that：The punch retainer (8) hole of installation wedge (9) is provided with, the wedge (9) is interference fitted with punch retainer (8) and is connected with riveting method.
- A kind of 8. automatic discharging ECAP Die according to claim 1, it is characterised in that：The die block (21) hole of interference fits installation block (5) is provided with, the block (5) is pressed on down by the shoulder on die block (21) On backing plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610821761.2A CN107812796A (en) | 2016-09-14 | 2016-09-14 | A kind of automatic discharging ECAP Die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610821761.2A CN107812796A (en) | 2016-09-14 | 2016-09-14 | A kind of automatic discharging ECAP Die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107812796A true CN107812796A (en) | 2018-03-20 |
Family
ID=61600480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610821761.2A Pending CN107812796A (en) | 2016-09-14 | 2016-09-14 | A kind of automatic discharging ECAP Die |
Country Status (1)
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| CN (1) | CN107812796A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332415A (en) * | 2018-11-14 | 2019-02-15 | 江苏科技大学 | A kind of expanding extrusion die of corner that tubing is prepared using bar and method |
| CN109332407A (en) * | 2018-12-11 | 2019-02-15 | 湖南千源铝业有限公司 | One kind being used for aluminium alloy extruded molding formwork assembling and disassembling device |
| CN111530955A (en) * | 2020-05-21 | 2020-08-14 | 燕山大学 | Double-channel variable-channel corner extrusion forming device and forming method |
| CN114210835A (en) * | 2021-12-13 | 2022-03-22 | 中北大学 | Magnesium alloy combined type shearing extrusion deformation method |
| CN114769398A (en) * | 2022-04-11 | 2022-07-22 | 北京北方车辆集团有限公司 | Punch forming die and forming method for protective cover |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332415A (en) * | 2018-11-14 | 2019-02-15 | 江苏科技大学 | A kind of expanding extrusion die of corner that tubing is prepared using bar and method |
| CN109332415B (en) * | 2018-11-14 | 2020-02-14 | 江苏科技大学 | Corner expanding extrusion die and method for preparing pipe by using bar stock |
| CN109332407A (en) * | 2018-12-11 | 2019-02-15 | 湖南千源铝业有限公司 | One kind being used for aluminium alloy extruded molding formwork assembling and disassembling device |
| CN111530955A (en) * | 2020-05-21 | 2020-08-14 | 燕山大学 | Double-channel variable-channel corner extrusion forming device and forming method |
| CN114210835A (en) * | 2021-12-13 | 2022-03-22 | 中北大学 | Magnesium alloy combined type shearing extrusion deformation method |
| CN114210835B (en) * | 2021-12-13 | 2023-09-22 | 中北大学 | Combined shearing extrusion deformation method for magnesium alloy |
| CN114769398A (en) * | 2022-04-11 | 2022-07-22 | 北京北方车辆集团有限公司 | Punch forming die and forming method for protective cover |
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Application publication date: 20180320 |