CN109821919A - A kind of back pressure type cold extrusion device of annular thin wall long-neck part - Google Patents
A kind of back pressure type cold extrusion device of annular thin wall long-neck part Download PDFInfo
- Publication number
- CN109821919A CN109821919A CN201910233286.0A CN201910233286A CN109821919A CN 109821919 A CN109821919 A CN 109821919A CN 201910233286 A CN201910233286 A CN 201910233286A CN 109821919 A CN109821919 A CN 109821919A
- Authority
- CN
- China
- Prior art keywords
- plate
- die structure
- pressure
- cold extrusion
- thin wall
- 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
Links
- 238000000641 cold extrusion Methods 0.000 title claims abstract description 24
- 238000003825 pressing Methods 0.000 claims abstract description 35
- 238000010276 construction Methods 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 13
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000005242 forging Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000005526 G1 to G0 transition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Landscapes
- Forging (AREA)
Abstract
The invention belongs to forging equipment technical fields, disclose a kind of back pressure type cold extrusion device of annular thin wall long-neck part, comprising: lower die structure, back-pressure structure, upper die structure, workpiece slot, roof construction, back-pressure structure are set to the upper end of lower die structure；Upper die structure is set to the upper end of back-pressure structure；Workpiece slot is extended to the inside of lower die structure by the upper surface of back-pressure structure；Roof construction is set to the lower end of lower die structure；Back-pressure structure includes: fixed plate, blank holder and backing plate, and fixed plate is set between lower die structure and upper die structure, and one end of blank holder extends to the inside of workpiece slot and is connected with the inner edge of lower die structure, and backing plate is set between blank holder and upper die structure.Present invention can assure that blank once cold extrusion pressing formation, improves the quality of extrusion, while also reducing blank forming pressure and mold internal stress, the service life of mold is improved.
Description
Technical field
The invention belongs to forging equipment technical fields, more particularly, to a kind of back pressure type cold-extruded of annular thin wall long-neck part
Pressure device.
Background technique
Cold extrusion is exactly that metal blank is placed in cold extrusion die cavity, is applied by punch-pin fixed on press machine to blank
Pressure makes metal blank generate plastic deformation and the processing method of obtained part.
And in the prior art, cold extrusion die to metal blank carry out drawing and forming when, metal blank in a mold to
The direction flowing velocity of extruding is slow, and metal blank, which generally requires one or many application pressure, to be shaped, the internal stress of mold
Greatly, extrusion forming pressure is big；Meanwhile extrusion upper end is more open, planarization is not also high.
Therefore, it is necessary to which the back pressure type cold extrusion device for providing a kind of new annular thin wall long-neck part solves above-mentioned technology
Problem.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of one-pass moldings, the small annular thin wall of extrusion forming pressure
The back pressure type cold extrusion device of long-neck part.
The technical solution adopted by the present invention to solve the technical problems, a kind of back pressure type cold-extruded of annular thin wall long-neck part
Pressure device, comprising:
Lower die structure,
Back-pressure structure, the back-pressure structure are set to the upper end of the lower die structure；
Upper die structure, the upper die structure are set to the upper end of the back-pressure structure；
Workpiece slot, the workpiece slot are extended to the inside of the lower die structure by the upper surface of the back-pressure structure；
Roof construction, the roof construction are set to the lower end of the lower die structure；
The back-pressure structure includes: fixed plate, blank holder and backing plate, the fixed plate be set to the lower die structure and it is described on
Between mode structure, one end of the blank holder extends to the inside of the workpiece slot and is connected with the inner edge of the lower die structure
It connects, the backing plate is set between the blank holder and the upper die structure.
Preferably, the upper die structure includes: pressure head, top board, upper padding plate, upper base plate, elastic component, guide part and silk
Bar, one end of the pressure head are contained in the workpiece slot and are sheathed on the blank holder, the other end of the pressure head and it is described on
Pressing plate is connected, and the upper padding plate is connected with the top board far from one end of the fixed plate, the upper base plate with it is described
Upper padding plate is connected far from one end of the top board, and one end of the elastic component and one end of the fixed plate are fixedly linked,
The other end of the elastic component extends to the direction of the upper base plate, and the guide part is by the upper base plate far from the upper padding plate
End face extend to the inside of the lower die structure, the screw rod is extended to by the upper base plate far from the end face of the upper padding plate
The lower die structure is close to the end face of the fixed plate.
Preferably, the upper base plate, the upper padding plate and the top board are fixedly linked with the screw rod respectively, described
Screw rod is connected with fixed plate sliding.
Preferably, the guide part includes guide sleeve and guide post, and the guide column sleeve is set in the guide sleeve and the guide post
It is slidably connected with the guide sleeve.
Preferably, the lower die structure includes: lower seat board, lower bolster and lower platen, and the lower platen is set to the back
The one end of laminated structure far from the pressing plate, the lower bolster is set to the one end of the lower platen far from the back-pressure structure, described
Lower seat board is set to the one end of the lower bolster far from the lower platen.
Preferably, the lower platen includes the first pressing plate and the second pressing plate, and first pressing plate is inserted in described second
In pressing plate.
Preferably, the accommodating chamber through the lower bolster is equipped in the lower bolster；The roof construction includes: thimble, top
Panel, footstock plate and mandril, one end of the thimble is set in the accommodating chamber and the other end and the workpiece slot are far from institute
The one end for stating top board is connected, and the top panel is set in the accommodating chamber and with the thimble far from first pressing plate
One end is connected, and the footstock plate is set in the accommodating chamber and one end stationary phase with the top panel far from the thimble
Even, the mandril is set to the one end of the footstock plate far from the top panel and runs through the lower seat board.
Preferably, the mandril is connected with the lower seat board sliding, the top panel, the footstock plate with the underlay
Plate sliding is connected, and the thimble is connected with first pressing plate sliding.
Preferably, the guide post is less than the diameter of the other end close to the diameter of one end of the lower bolster, and the guide sleeve leans on
The diameter of one end of the nearly lower bolster is greater than the diameter of the other end, and diameter of the pressure head close to one end of the upper padding plate is big
In the diameter of the other end.
Preferably, the mandril is greater than the diameter of the other end close to the diameter of one end of the footstock plate, and the thimble leans on
The diameter of one end of the nearly workpiece slot is less than the diameter of the other end.
Compared with prior art, the invention has the following advantages that
1, compact-sized, manufacturing cost is low.
2, can one-pass molding, the quality of extrusion is high, and cold extrusion device is equipped with blank holder, and pressure head is given in workpiece slot downwards
When blank applies pressure, making blank, downwardly and upwardly both direction express delivery is flowed, and blank holder will apply pressure to blank at this time, resistance
Only blank continues up flowing, while blank being promoted to continue downwards quickly flowing, it is ensured that blank energy once cold extrusion pressing formation, this is cold
In extrusion process, the extrusion upper end consolidation after forming is smooth.
3, the long service life of mold is equipped with blank holder, can reduce blank forming pressure and mold internal stress, to mention
The service life of high mold.
4, work efficiency is high, using 5 Combined extrusions of a mould, improves working efficiency 400%.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
In figure:
1. lower die structure, 11. lower seat boards, 12. lower bolsters, 13. lower platens, 131. first pressing plates, 132. second pressing plates, 2. back pressures
Structure, 21. fixed plates, 22. blank holders, 23. backing plates, 3. upper die structures, 31. pressure heads, 32. top boards, 33. upper padding plates, on 34.
Seat board, 35. elastic components, 36. guide parts, 361. guide sleeves, 362. guide posts, 37. screw rods, 4. workpiece slots, 5. roof constructions, 51. thimbles,
52. top panel, 53. footstock plates, 54. mandrils.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to attached drawing 1, the present embodiment includes: lower die structure 1, back-pressure structure 2, upper die structure 3, workpiece slot 4, roof construction 5,
Back-pressure structure 2 is set to the upper end of lower die structure 1；Upper die structure 3 is set to the upper end of back-pressure structure 2；Workpiece slot 4 is by back-pressure structure 2
Upper surface extend to the inside of lower die structure 1；Roof construction 5 is set to the lower end of lower die structure 1；Back-pressure structure 2 includes: fixed plate
21, blank holder 22 and backing plate 23, fixed plate 21 are set between lower die structure 1 and upper die structure 3, and one end of blank holder 22 extends
To workpiece slot 4 inside and be connected with the inner edge of lower die structure 1, backing plate 23 be set between blank holder 22 and upper die structure 3.Pad
It is to be threadedly coupled between plate 23 and fixed plate 21
Upper die structure 3 includes: pressure head 31, top board 32, upper padding plate 33, upper base plate 34, elastic component 35, guide part 36 and screw rod
37, one end of pressure head 31 is contained in workpiece slot 4 and is sheathed on blank holder 22, and the other end of pressure head 31 is connected with top board 32,
Pressure head 31 and 32 modular design of top board are conducive to replaceable pressure head 31.Upper padding plate 33 and top board 32 far from fixed plate 21 one
End is connected, and upper base plate 34 is connected with upper padding plate 33 far from one end of top board 32, one end of elastic component 35 and fixed plate 21
One end be fixedly linked, the other end of elastic component 35 extends to the direction of upper base plate 34, and elastic component 35 is spring.Work as upper die structure
3 when moving up, and fixed plate 21, blank holder 22 and the backing plate 23 being fixedly linked with elastic component 35 will also move up, convenient
Staff is put into blank.When upper die structure 3 moves down, fixed plate 21 can be connected with lower die structure 1 first, pressure head 31
When reaching blank or blank when starting to flow up fixed plate 21 can apply resistance to the blank flowed up, be conducive to blank at
Shape and reduction forming pressure.Guide part 36 is extended to the inside of lower die structure 1 by upper base plate 34 far from the end face of upper padding plate 33, is led
It include guide sleeve 361 and guide post 362 to part 36, guide post 362 is sheathed in guide sleeve 361 and guide post 362 and the sliding of guide sleeve 361 connect
It connects.Conducive to the contraposition of upper die structure 3 and lower die structure 1.Screw rod 37 is extended to down by upper base plate 34 far from the end face of upper padding plate 33
Mode structure 1 is close to the end face of fixed plate 21.Upper base plate 34, upper padding plate 33 and top board 32 are fixedly linked with screw rod 37 respectively,
Screw rod 37 is connected with the sliding of fixed plate 21.The structure is conducive to elastic component 35 and expands downwards, makes fixed plate 21, backing plate 23 and flanging
Circle 22 is separated with top board 32.Pressure head 31 is greater than the diameter of the other end close to the diameter of one end of upper padding plate 33, prevents pressure head 31
Slide downward is fallen.The width of upper base plate 34 is greater than the width of upper padding plate 33, and 34 area of upper base plate is bigger, what unit area was born
Pressure is smaller, is conducive to protection upper base plate 34.
It is equipped with multiple workpiece slots 4 in first pressing plate to be squeezed simultaneously, is conducive to improve production efficiency.It is arranged in first pressing plate
Workpiece slot number be five when, production efficiency 400% can be improved.
Lower die structure 1 includes: lower seat board 11, lower bolster 12 and lower platen 13, and it is separate that lower platen 13 is set to back-pressure structure 2
One end of pressing plate, lower bolster 12 are set to the one end of lower platen 13 far from back-pressure structure 2, are equipped in lower bolster 12 and run through lower bolster 12
Accommodating chamber；Lower seat board 11 is set to the one end of lower bolster 12 far from lower platen 13.Lower platen 13 includes the first pressing plate 131 and the
Two pressing plates 132, the first pressing plate 131 are inserted in the second pressing plate 132.Connect between first pressing plate 131 and the second pressing plate 132 for interference
It connects, modular design is conveniently replaceable the first pressing plate 131.To be threadedly coupled between second pressing plate 132 and lower bolster 12, lower bolster 12
It is to be threadedly coupled between lower seat board 11.The width of lower seat board 11 be greater than lower bolster 12 width, be conducive to protection lower bolster 12 and
Improve the stability of lower die structure 1.
Roof construction 5 includes: thimble 51, top panel 52, footstock plate 53 and mandril 54, and one end of thimble 51 is set to accommodating chamber
The interior and other end is connected with workpiece slot 4 far from one end of top board 32, and thimble 51 and the modular design of top panel 52 are convenient for
Replace thimble 51.Top panel 52 is set in accommodating chamber and is connected with thimble 51 far from one end of the first pressing plate 131, footstock plate 53
It is fixedly linked in accommodating chamber and with top panel 52 far from one end of thimble 51, mandril 54 is set to footstock plate 53 far from top panel
52 one end and run through lower seat board 11.The sliding of mandril 54 and lower seat board 11 is connected, top panel 52, footstock plate 53 with lower bolster 12
Sliding is connected, and thimble 51 is connected with the sliding of the first pressing plate 131.Diameter of the mandril 54 close to one end of footstock plate 53 is greater than the other end
Diameter, the design can prevent mandril 54 from lower seat board 11 skid off come.Diameter of the thimble 51 close to one end of workpiece slot 4 is less than
The diameter of the other end, convenient for the fixation and replacement of thimble 51.It is to be threadedly coupled between top panel 52 and footstock plate 53.
Guide part 36 runs through the second pressing plate 132, and diameter of the guide post 362 close to one end of lower bolster 12 is less than the straight of the other end
Diameter, guide post 362 skids off downwards when preventing upper die structure 3 from moving up.Diameter of the guide sleeve 361 close to one end of lower bolster 12 is greater than
The diameter of the other end prevents guide sleeve 361 along 132 upward sliding of the second pressing plate.
The course of work of the back pressure type cold extrusion device of annular thin wall long-neck part provided by the invention are as follows: upper die structure 3
It moves up, 31 upward sliding of pressure head leaves workpiece slot 4, while fixed plate 21, blank holder 22 and backing plate 23 move up, pressure
22 upward sliding of flange leaves workpiece slot 4.Blank is put into workpiece slot 4, press is started to work, and pressure head 31 downwards applies blank
Plus-pressure, blank will quickly downwardly and upwardly both direction flows, and reduces the internal stress and blank forming pressure of mold, improves
The service life of mold.The blank holder 22 for being fixed on workpiece slot 4 applies resistance to the blank quickly flowed upwards, promotes blank
Continue quickly flowing downwards, it is ensured that blank is once-forming in a mold.After blank extrusion molding, since blank holder 22 is downward
The upper end consolidation of pressure, the extrusion after cold extrusion is smooth.Improve the quality of extrusion.Upper die structure 3 moves up, pressure head
31 and blank holder 22 slide off workpiece slot 4, mandril 54 moves up, drive top surface on thimble 51 move up, extrusion
Along 4 upward sliding of workpiece slot, facilitates staff to take out extrusion and carry out cold extrusion next time.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of back pressure type cold extrusion device of annular thin wall long-neck part characterized by comprising
Lower die structure,
Back-pressure structure, the back-pressure structure are set to the upper end of the lower die structure；
Upper die structure, the upper die structure are set to the upper end of the back-pressure structure；
Workpiece slot, the workpiece slot are extended to the inside of the lower die structure by the upper surface of the back-pressure structure；
Roof construction, the roof construction are set to the lower end of the lower die structure；
The back-pressure structure includes: fixed plate, blank holder and backing plate, the fixed plate be set to the lower die structure and it is described on
Between mode structure, one end of the blank holder extends to the inside of the workpiece slot and is connected with the inner edge of the lower die structure
It connects, the backing plate is set between the blank holder and the upper die structure.
2. the back pressure type cold extrusion device of annular thin wall long-neck part according to claim 1, which is characterized in that on described
Mode structure includes: pressure head, top board, upper padding plate, upper base plate, elastic component, guide part and screw rod, one end receiving of the pressure head
In the workpiece slot and it is sheathed on the blank holder, the other end of the pressure head is connected with the top board；The upper padding plate
It is connected with the top board far from one end of the fixed plate, the upper base plate and the upper padding plate are far from the top board
One end is connected, and one end of the elastic component and one end of the fixed plate are fixedly linked, and the other end of the elastic component is to institute
The direction for stating upper base plate extends, and the guide part extends to the lower die knot far from the end face of the upper padding plate by the upper base plate
The inside of structure, the screw rod extend to the lower die structure close to described solid far from the end face of the upper padding plate by the upper base plate
The end face of fixed board.
3. the back pressure type cold extrusion device of annular thin wall long-neck part according to claim 2, which is characterized in that on described
Seat board, the upper padding plate and the top board are fixedly linked with the screw rod respectively, and the screw rod and the fixed plate are slided
It is connected.
4. the back pressure type cold extrusion device of annular thin wall long-neck part according to claim 3, which is characterized in that described to lead
It include guide sleeve and guide post to part, the guide column sleeve is set in the guide sleeve and the guide post is slidably connected with the guide sleeve.
5. the back pressure type cold extrusion device of annular thin wall long-neck part according to claim 4, which is characterized in that under described
Mode structure includes: lower seat board, lower bolster and lower platen, and the lower platen is set to one of the back-pressure structure far from the pressing plate
End, the lower bolster are set to the one end of the lower platen far from the back-pressure structure, and it is remote that the lower seat board is set to the lower bolster
One end from the lower platen.
6. the back pressure type cold extrusion device of annular thin wall long-neck part according to claim 5, which is characterized in that under described
Pressing plate includes the first pressing plate and the second pressing plate, and first pressing plate is inserted in second pressing plate.
7. the back pressure type cold extrusion device of annular thin wall long-neck part according to claim 6, which is characterized in that under described
The accommodating chamber through the lower bolster is equipped in backing plate；The roof construction includes: thimble, top panel, footstock plate and mandril, institute
The one end for stating thimble is set in the accommodating chamber and the other end is connected with the workpiece slot far from one end of the top board, institute
It states top panel to be connected in the accommodating chamber and with the thimble far from one end of first pressing plate, the footstock plate is set
It is fixedly linked in the accommodating chamber and with the top panel far from one end of the thimble, the mandril is set to the footstock plate
Far from the top panel one end and run through the lower seat board.
8. the back pressure type cold extrusion device of annular thin wall long-neck part according to claim 7, which is characterized in that the top
Bar is connected with the lower seat board sliding, and the top panel, the footstock plate are connected with lower bolster sliding, the thimble and
The first pressing plate sliding is connected.
9. the back pressure type cold extrusion device of annular thin wall long-neck part according to claim 8, which is characterized in that described to lead
Column is less than the diameter of the other end close to the diameter of one end of the lower bolster, and the guide sleeve is straight close to one end of the lower bolster
Diameter is greater than the diameter of the other end, and the pressure head is greater than the diameter of the other end close to the diameter of one end of the upper padding plate.
10. the back pressure type cold extrusion device of annular thin wall long-neck part according to claim 9, which is characterized in that described
Mandril is greater than the diameter of the other end close to the diameter of one end of the footstock plate, and the thimble is close to one end of the workpiece slot
Diameter is less than the diameter of the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910233286.0A CN109821919A (en) | 2019-03-26 | 2019-03-26 | A kind of back pressure type cold extrusion device of annular thin wall long-neck part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910233286.0A CN109821919A (en) | 2019-03-26 | 2019-03-26 | A kind of back pressure type cold extrusion device of annular thin wall long-neck part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109821919A true CN109821919A (en) | 2019-05-31 |
Family
ID=66872226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910233286.0A Pending CN109821919A (en) | 2019-03-26 | 2019-03-26 | A kind of back pressure type cold extrusion device of annular thin wall long-neck part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109821919A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101678516A (en) * | 2007-04-04 | 2010-03-24 | Gkn烧结金属有限公司 | Powder metal forging and method and apparatus of manufacture |
| CN101912912A (en) * | 2010-07-08 | 2010-12-15 | 宁波信泰机械有限公司 | Lateral punching device |
| CN103586299A (en) * | 2013-11-27 | 2014-02-19 | 山东建筑大学 | High-alloy steel flexible wheel blank warm-extrusion technology used for harmonic wave decelerator |
| CN104722640A (en) * | 2013-12-21 | 2015-06-24 | 重庆观龙模具有限公司 | Progressive die with rotatable guide posts for production of iron profiled plates |
| CN207629097U (en) * | 2017-12-20 | 2018-07-20 | 博峰汽配科技有限公司 | Cotter seat cold-heading molding equipment |
| CN108787885A (en) * | 2018-05-19 | 2018-11-13 | 滁州普立惠技术服务有限公司 | A kind of decompressor |
| CN208542843U (en) * | 2018-05-21 | 2019-02-26 | 深圳市亿和精密科技集团有限公司 | A kind of single step no waste mine hole flanging mechanism |
| CN209792286U (en) * | 2019-03-26 | 2019-12-17 | 湖南省机械科学研究院有限公司 | Back pressure type cold extrusion device for annular thin-wall long-neck part |
-
2019
- 2019-03-26 CN CN201910233286.0A patent/CN109821919A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101678516A (en) * | 2007-04-04 | 2010-03-24 | Gkn烧结金属有限公司 | Powder metal forging and method and apparatus of manufacture |
| US20100083782A1 (en) * | 2007-04-04 | 2010-04-08 | Cheisa Alfred J | Powder metal forging and method and apparatus of manufacture |
| CN101912912A (en) * | 2010-07-08 | 2010-12-15 | 宁波信泰机械有限公司 | Lateral punching device |
| CN103586299A (en) * | 2013-11-27 | 2014-02-19 | 山东建筑大学 | High-alloy steel flexible wheel blank warm-extrusion technology used for harmonic wave decelerator |
| CN104722640A (en) * | 2013-12-21 | 2015-06-24 | 重庆观龙模具有限公司 | Progressive die with rotatable guide posts for production of iron profiled plates |
| CN207629097U (en) * | 2017-12-20 | 2018-07-20 | 博峰汽配科技有限公司 | Cotter seat cold-heading molding equipment |
| CN108787885A (en) * | 2018-05-19 | 2018-11-13 | 滁州普立惠技术服务有限公司 | A kind of decompressor |
| CN208542843U (en) * | 2018-05-21 | 2019-02-26 | 深圳市亿和精密科技集团有限公司 | A kind of single step no waste mine hole flanging mechanism |
| CN209792286U (en) * | 2019-03-26 | 2019-12-17 | 湖南省机械科学研究院有限公司 | Back pressure type cold extrusion device for annular thin-wall long-neck part |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107413961B (en) | Mold machine of loosing core fast constructs | |
| CN101875068A (en) | Cold extrusion molding mould of part | |
| CN201291279Y (en) | Magnesium alloy liquid die forging hydraulic device | |
| CN204035329U (en) | A kind of hydraulic test be shaped for aluminium alloy drawing extrusion cladding | |
| CN202045273U (en) | Vibration damper oil storage cylinder double-end necking die | |
| CN201735620U (en) | Cold extrusion forming die for part | |
| CN208452093U (en) | A kind of rubber parts molding die | |
| CN105033028B (en) | Netted gradually-changed servo annular punching equipment applied to metal pipe wall | |
| JP2016510698A (en) | Molding press machine | |
| CN109821919A (en) | A kind of back pressure type cold extrusion device of annular thin wall long-neck part | |
| CN201524745U (en) | Drawing die device | |
| CN102601149B (en) | Warm extrusion die for radiator | |
| CN218798241U (en) | Reverse extrusion die for embedded aluminum profile | |
| CN1994605A (en) | Cold extrusion processing technique for high-strength conical vertical tube of motorcycle steel column | |
| CN206262996U (en) | Ball stud cold extrusion die | |
| CN205995947U (en) | A kind of closed nothing defective material composite extrusion die | |
| CN209792286U (en) | Back pressure type cold extrusion device for annular thin-wall long-neck part | |
| CN109774096A (en) | A kind of production method of machine barrel wear-resistant sleeve | |
| CN206199995U (en) | A kind of flange shaping mould for punch process | |
| CN208680327U (en) | A kind of seat front foot frame mold | |
| CN106424192B (en) | Ball stud cold extrusion die | |
| CN204248409U (en) | Lining ring forming soldering machine | |
| CN207188614U (en) | A kind of mold mechanism of quick core pulling | |
| CN103706655A (en) | Improved simple extrusion die rack for parts | |
| CN212422296U (en) | Sand mould manufacturing equipment for preventing impact deformation of raw materials in thermoplastic process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |