CN204093854U - Indirect-extrusion mould - Google Patents
Indirect-extrusion mould Download PDFInfo
- Publication number
- CN204093854U CN204093854U CN201420542145.XU CN201420542145U CN204093854U CN 204093854 U CN204093854 U CN 204093854U CN 201420542145 U CN201420542145 U CN 201420542145U CN 204093854 U CN204093854 U CN 204093854U
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- China
- Prior art keywords
- backing plate
- cylinder barrel
- counterdie
- die
- indirect
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- Expired - Lifetime
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- 238000001125 extrusion Methods 0.000 title claims abstract description 29
- 238000007599 discharging Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 13
- 238000005242 forging Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of indirect-extrusion mould, comprise upper and lower mould, on the downside of patrix, be installed with drift, drift lower circumferential lateral surface is formed the annular extrusion band of a circle evagination, counterdie is installed with backing plate, backing plate is installed with cylinder barrel die, concave die cavity is formed inside cylinder barrel die, counterdie has also been fixedly arranged on die outer ring, this die outer ring is closely sheathed on outside cylinder barrel die, the two is less than the taper surface contact of lower ending opening by upper end open, counterdie also has the push rod that longitudinally can be elevated, backing plate be provided with cylinder barrel die inside the just right perforation of cavity positions, push rod upper end just extend in the perforation of backing plate, and be able to align with backing plate uper side surface and form concave die cavity downside in push rod upper end, counterdie also has a device for discharging, this device for discharging be able to directly over the workpiece of backstop in concave die cavity, the utility model achieves the extruded and demoulding of cylinder barrel without withdrawing pattern oblique angle, compact product structure, intensity is large, use reliable, safety.
Description
Technical field
The utility model relates to a kind of mould of high-voltage oil cylinder machining, particularly a kind of indirect-extrusion mould.
Background technology
Oil cylinder is pressure-volume parts important in hydraulic machinery, domestic hydraulic drive application is very extensive, the specification standards of high-low pressure oil cylinder are also a lot, but contemporary new and high technology proposes higher requirement to the hydraulic machinery scope of application and performance, promote the development of ultrahigh pressure cylinder thus, little with caliber, thin and long shafts, tube wall is thin, high pressure resistant, the lightweight oil cylinder for feature becomes one of project hydropress tool important development direction, the cylinder barrel that this patent is processed is a kind of new oil cylinder specification of blocking the manufacture of special company standard according to the U.S., the cylinder barrel forging material of this high pressure cylinder barrel: 20Mn, weight: 452Kg, this cylinder barrel product technology feature: 1. bore little (internal diameter: 219.5mm), cylinder barrel overall length: 1198mm, advanced ratio: 5.4, 2. cylinder barrel wall thin (wall thickness: 52mm), 3. cylinder barrel center required precision high (coaxiality deviation ± 0.25mm), 4. decarburized layer :≤1.5mm, grain size reaches more than 5 grades, from above-mentioned data, cylinder structure is complicated, and technical requirement is high, and shaping difficulty is large, and adopt tradition forging (open die forging+machining) method to process it, forging ratio and performance do not reach requirement.
Utility model content
In order to make up above deficiency, the utility model provides a kind of indirect-extrusion mould, and this indirect-extrusion mould can realize that baroque elongated thin-walled hydraulic cylinder is shaping, and shaping Product Precision is high, and intensity is large, and without withdrawing pattern oblique angle inside cylindrical shell.
The utility model in order to the technical scheme solving its technical problem and adopt is: a kind of indirect-extrusion mould, comprises upper die and lower die, wherein:
Be installed with drift on the downside of patrix, drift lower circumferential lateral surface formed the annular extrusion band of a circle evagination;
Counterdie is installed with backing plate, backing plate is installed with cylinder barrel die, concave die cavity is formed inside cylinder barrel die, counterdie is also fixedly arranged on a die outer ring, this die outer ring is closely sheathed on outside cylinder barrel die, the two is less than the taper surface contact of lower ending opening by upper end open, counterdie is also provided with the push rod that longitudinally can be elevated, backing plate be provided with cylinder barrel die inside the just right perforation of cavity positions, push rod upper end just extend in the perforation of backing plate, and be able to align with backing plate uper side surface and form concave die cavity downside in push rod upper end, counterdie is also provided with a device for discharging, this device for discharging be able to directly over the workpiece of backstop in concave die cavity.
As further improvement of the utility model, the compressive zone height on described drift is 0.5mm, and width is 30mm.
As further improvement of the utility model, described device for discharging comprises a drive-connecting shaft and an opening blocking material frame, described drive-connecting shaft horizontal pivot is connected to counterdie upper side, this drive-connecting shaft is fixedly connected with the sidewall of opening blocking material frame side, this opening blocking material frame is just sheathed on outside workpiece, and this opening blocking material frame and the just right sidewall of opening can backstop directly over workpiece.
As further improvement of the utility model, the backing plate of described counterdie is provided with a boss, and this boss just stretches in cylinder barrel die.
As further improvement of the utility model, described cylinder barrel die downside is by being longitudinally connected with backing plate upper side with the positioning key of level.
As further improvement of the utility model, be describedly also provided with a upsetting flange backing plate, this upsetting flange backing plate can cover completely to be located on workpiece uper side surface.
As further improvement of the utility model, the cylinder barrel die height of described counterdie is less than workpiece height.
Advantageous Effects of the present utility model is: the steel ingot of high-temperature heating is first carried out pre-upsetting by the utility model, upsetting goes out flange, and then carry out substep anti-extrusion and heat treatment, this patent by realizing the pre-upsetting of blank flange by upsetting flange backing plate pad on blank, take upsetting flange backing plate after the pre-upsetting of flange terminates away and can carry out backward extrusion, such flange jumping-up be complete in extrusion die and heat with the same fire of backward extrusion operation, save heater time and pre-upsetting mould, compressive zone is devised at the nose of punch of mould, achieve the shaping and demoulding of cylinder barrel normal extrusion without withdrawing pattern oblique angle, and ensure that cylinder barrel two sections internal diameter high unity, device for discharging effectively prevent workpiece and is stained with mould, after this patent adopts distribution extrusion process to manufacture the staving blank of upper end open lower end closed, by heading die by the sidewall extrusion of staving blank radially outward extending flange, the flange of this integral head cover and top cover staving are structure as a whole no-welding-seam like this, and remain at three-dimensional compressive stress state due to flange forging inside in upsetting squeeze process, it is inner without tension, the defect such as can not to crack, its compact structure, intensity is large, use reliable, safety.
Accompanying drawing explanation
Fig. 1 is indirect-extrusion mould schematic diagram;
Fig. 2 is the drift front view of indirect-extrusion mould;
Fig. 3 is device for discharging front view;
Fig. 4 is device for discharging stereogram.
Fig. 5 is workpiece front view;
Fig. 6 be in Fig. 5 A-A to sectional view.
Detailed description of the invention
Embodiment: a kind of indirect-extrusion mould, comprises patrix 1 and counterdie 2, wherein:
Be installed with drift 3 on the downside of patrix 1, drift 3 lower circumferential lateral surface formed the annular extrusion band 4 of a circle evagination;
Counterdie 2 is installed with backing plate 5, backing plate 5 is installed with cylinder barrel die 6, concave die cavity is formed inside cylinder barrel die 6, counterdie 2 is also fixedly arranged on a die outer ring 7, this die outer ring 7 is closely sheathed on outside cylinder barrel die 6, the two is less than the taper surface contact of lower ending opening by upper end open, counterdie 2 is also provided with the push rod 8 that longitudinally can be elevated, backing plate 5 be provided with cylinder barrel die 6 inside the just right perforation of cavity positions, push rod 8 upper end just extend in the perforation of backing plate 5, and be able to align with backing plate 5 uper side surface and form concave die cavity downside in push rod 8 upper end, counterdie 2 is also provided with a device for discharging 9, this device for discharging 9 be able to directly over the workpiece 10 of backstop in concave die cavity.
Cylinder structure is elongated, blade diameter length ratio is 5.4, and withdrawing pattern oblique angle can not be there is in cylinder barrel, the utility model is by the compressive zone in the design of patrix 1 drift 3 end, workpiece 10 internal diameter size is ensured by compressive zone, because compressive zone is short and small, can ensure that the upper and lower internal diameter of cylinder barrel is consistent, and frictional force is little, not easily sticking to mould, this structure achieves shaping smoothly without withdrawing pattern oblique angle structure of elongated cylinder barrel, the demoulding smoothly simultaneously, counterdie 2 devises device for discharging 9, the cylinder barrel being stained with mould 1 during patrix 1 backhaul is taken off in time, mould (frock) assembling selects backing plate 5 and die size according to minimum shut height and oil cylinder stroke, backing plate 5 and workbench adopt T-slot fitted bolt to be connected, what mould and backing plate 5 according to circumstances had bolt to be directly connected also have hangs that T-slot connects.
Compressive zone height on described drift 3 is 0.5mm, and width is 30mm.
Described device for discharging 9 comprises a drive-connecting shaft and an opening blocking material frame, described drive-connecting shaft horizontal pivot is connected to counterdie 2 upper side, this drive-connecting shaft is fixedly connected with the sidewall of opening blocking material frame side, this opening blocking material frame is just sheathed on outside workpiece 10, and this opening blocking material frame and the just right sidewall of opening can backstop directly over workpiece 10, when workpiece 10 extrudes, device for discharging 9 is just set in outside workpiece 10 does not interfere with workpiece 10, when the needs demoulding, rotary unloading materials device 9, the sidewall that device for discharging 9 is relative with opening just keeps off above workpiece 10, drift 3 is up, workpiece 10 upper end is subject to device for discharging 9 stop cannot be up with drift 3, just stay in counterdie 2, this structure is simple, convenient operation.
The backing plate 5 of described counterdie 2 is provided with a boss, and this boss just stretches in cylinder barrel die 6.
Described cylinder barrel die 6 downside is by being longitudinally connected with backing plate 5 upper side with the positioning key of level.
Describedly also be provided with a upsetting flange backing plate 5, this upsetting flange backing plate 5 can cover completely to be located on workpiece 10 uper side surface, the gathering stock of cylinder barrel flange carries out in mold cavity, upsetting flange backing plate 5 is utilized to pad on blank, drift 3 presses down upsetting flange backing plate 5, and realize blank upsetting flange step by upsetting flange backing plate 5 transmission of pressure, this method decreases open die forging operation, shorten production node, and experiment proof in same fire, complete jumping-up and backward extrusion two procedures temperature drop is unconspicuous.
The cylinder barrel die 6 of described counterdie 2 is highly less than workpiece 10 height, counterdie 2 height of design is lower than workpiece 10 height, forging top is progressively counter to be extruded on die orifice to allow forging extrude along patrix 1 sidewall with stroke downwards, implement after this discovery gains enlightenment in dynamic analog, the results show simulation is close with actual effect.
Claims (7)
1. an indirect-extrusion mould, is characterized in that: comprise patrix (1) and counterdie (2), wherein:
Be installed with drift (3) on the downside of patrix, drift lower circumferential lateral surface formed the annular extrusion band (4) of a circle evagination;
Counterdie is installed with backing plate (5), backing plate is installed with cylinder barrel die (6), concave die cavity is formed inside cylinder barrel die, counterdie is also fixedly arranged on a die outer ring (7), this die outer ring is closely sheathed on outside cylinder barrel die, the two is less than the taper surface contact of lower ending opening by upper end open, counterdie is also provided with the push rod (8) that longitudinally can be elevated, backing plate be provided with cylinder barrel die inside the just right perforation of cavity positions, push rod upper end just extend in the perforation of backing plate, and be able to align with backing plate uper side surface and form concave die cavity downside in push rod upper end, counterdie is also provided with a device for discharging (9), this device for discharging be able to directly over the workpiece of backstop in concave die cavity (10).
2. a kind of indirect-extrusion mould as claimed in claim 1, is characterized in that: the compressive zone height on described drift is 0.5mm, and width is 30mm.
3. a kind of indirect-extrusion mould as claimed in claim 1, it is characterized in that: described device for discharging comprises a drive-connecting shaft and an opening blocking material frame, described drive-connecting shaft horizontal pivot is connected to counterdie upper side, this drive-connecting shaft is fixedly connected with the sidewall of opening blocking material frame side, this opening blocking material frame is just sheathed on outside workpiece, and this opening blocking material frame and the just right sidewall of opening can backstop directly over workpiece.
4. a kind of indirect-extrusion mould as claimed in claim 1, is characterized in that: the backing plate of described counterdie is provided with a boss, and this boss just stretches in cylinder barrel die.
5. a kind of indirect-extrusion mould as described in claim 1 or 4, is characterized in that: described cylinder barrel die downside is by being longitudinally connected with backing plate upper side with the positioning key of level.
6. a kind of indirect-extrusion mould as claimed in claim 1, is characterized in that: be describedly also provided with a upsetting flange backing plate, and this upsetting flange backing plate can cover completely to be located on workpiece uper side surface.
7. a kind of indirect-extrusion mould as claimed in claim 1, is characterized in that: the cylinder barrel die height of described counterdie is less than workpiece height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542145.XU CN204093854U (en) | 2014-09-19 | 2014-09-19 | Indirect-extrusion mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542145.XU CN204093854U (en) | 2014-09-19 | 2014-09-19 | Indirect-extrusion mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204093854U true CN204093854U (en) | 2015-01-14 |
Family
ID=52262324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420542145.XU Expired - Lifetime CN204093854U (en) | 2014-09-19 | 2014-09-19 | Indirect-extrusion mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204093854U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478508A (en) * | 2014-09-19 | 2016-04-13 | 苏州昆仑重型装备制造有限公司 | Inverted extrusion molding process of high pressure cylinder and inverted extrusion die adopted in inverted extrusion molding process |
| CN106584740A (en) * | 2016-12-21 | 2017-04-26 | 宁波市北仑怡健模具制造有限公司 | Anti-adhesion plastic mould with high corrosion resistance |
| CN110102974A (en) * | 2019-04-30 | 2019-08-09 | 海盐猛凌汽车配件有限公司 | A kind of rear steering machine bush processing technology |
| CN110125301A (en) * | 2019-04-29 | 2019-08-16 | 邓州市良机锻压设备制造有限公司 | The dedicated forge die of cylinder barrel and forging method in a kind of coal mine hydraulic supporting |
-
2014
- 2014-09-19 CN CN201420542145.XU patent/CN204093854U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478508A (en) * | 2014-09-19 | 2016-04-13 | 苏州昆仑重型装备制造有限公司 | Inverted extrusion molding process of high pressure cylinder and inverted extrusion die adopted in inverted extrusion molding process |
| CN106584740A (en) * | 2016-12-21 | 2017-04-26 | 宁波市北仑怡健模具制造有限公司 | Anti-adhesion plastic mould with high corrosion resistance |
| CN110125301A (en) * | 2019-04-29 | 2019-08-16 | 邓州市良机锻压设备制造有限公司 | The dedicated forge die of cylinder barrel and forging method in a kind of coal mine hydraulic supporting |
| CN110102974A (en) * | 2019-04-30 | 2019-08-09 | 海盐猛凌汽车配件有限公司 | A kind of rear steering machine bush processing technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |