CN204735932U - Use accurate subassembly that takes shape of hollow valve blank of automobile engine of plug - Google Patents
Use accurate subassembly that takes shape of hollow valve blank of automobile engine of plug Download PDFInfo
- Publication number
- CN204735932U CN204735932U CN201520317480.4U CN201520317480U CN204735932U CN 204735932 U CN204735932 U CN 204735932U CN 201520317480 U CN201520317480 U CN 201520317480U CN 204735932 U CN204735932 U CN 204735932U
- Authority
- CN
- China
- Prior art keywords
- hollow valve
- valve blank
- blank
- plug
- hollow
- 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.)
- Expired - Fee Related
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 28
- 238000007493 shaping process Methods 0.000 claims abstract description 23
- 238000005242 forging Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 210000003679 cervix uteri Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Forging (AREA)
Abstract
The utility model provides an use accurate subassembly that takes shape of hollow valve blank of automobile engine of plug which characterized in that, shaping subassembly include a rolling hollow valve blank wedge cross rolling machine and a pair of rolling after hollow valve blank forged drop press carries out, roller, lower roll are drawn together to wedge cross rolling press packed bale, hollow valve blank is arranged in go up between roller and the lower roll, be equipped with a round mandrel in the hollow valve blank, the diameter of plug cross section is less than the internal diameter of hollow valve blank. The utility model discloses a production efficiency is high, but unit per minute base 6 -12 spare, the material using rate is increased. It is reasonable that the inside whole streamline of hollow valve distributes, organizes fine and closely wovenly, satisfies the performance requirement, the whole mechanical properties of valve has been improved.
Description
Technical field
The utility model belongs to metal forming technical field, is specifically related to a kind of automobile engine hollow valve blank Accurate Shaping assembly applying plug.
Background technology
Valve is a vital part of engine valve actuating mechanism, and the opening and closing of valve make fuel gas enter cylinder and discharge the waste gas after burning.Hollow valve achieves lightweight, and the effect enclosing the sodium metal of certain volume due to its hollow part effectively raises heat conductivility.Frequently clash between Valve Disc and valve seating in engine working process, and be subject to the erosion of high-temperature high-pressure fuel gas, especially very heavy load is applied with to air valve cervix, therefore valve not only will have higher mechanical performance, and require that its interior metal grain direction is consistent with profile, metallographic structure is fine and closely woven, has certain fatigue strength.
Domestic conventional hollow valve production method has solid valve boring method, this kind of method can only obtain that bar portion is hollow and dish portion is still solid hollow valve, and productivity ratio is low, and stock utilization is low, especially for the hollow valve be made up of difformity size revolving body, waste of material is caused.
Utility model content
In order to solve the problem, the utility model provides a kind of automobile engine hollow valve blank Accurate Shaping assembly applying plug.
Realizing the technical solution of the utility model is: a kind of automobile engine hollow valve blank Accurate Shaping assembly applying plug, and the hollow valve blank after described forming assembly comprises the cross wedge rolling machine of a rolling hollow valve blank and a pair rolling carries out the drop press forged;
Described cross wedge rolling machine comprises top roll, lower roll, and described hollow valve blank is placed between described top roll and lower roll, is provided with a round mandrel in described hollow valve blank, and the diameter of described plug is less than the internal diameter of described hollow valve blank.
Further, the internal diameter of the cross-sectional diameter D1 of described plug to be (0.7-0.9) * d1, described d1 be hollow blank after rolling; Simultaneously the size of described plug is maximum is no more than 25mm, is minimumly not less than 2mm;
The pass of the cross-sectional diameter of described plug and the relative wall thickness of hollow blank is: D1=13*Q, and described Q is hollow blank original wall thickness and the ratio of hollow blank original outer diameter.
Further, described hollow valve blank both sides are provided with the guide plate of fixation hollow valve blank.
Further, the symmetrical line of symmetry of described hollow valve blank and its axes normal, and the middle part of described hollow valve blank is bar portion, its two ends are dish portion, and the linkage section between its bar portion and dish portion is its neck.
Further, described forging press comprises a punch and a die matched with punch, and described punch is provided with nose and the shaping concave that stretches into hollow valve blank endoporus, and described nose extends described shaping concave; Described die is provided with groove and a shaping convex surface of a placement hollow valve plug, and described groove extends described shaping convex surface.
The utility model compared to existing technology, uses cross wedge rolling technique production automobile engine hollow valve blank tool to have the following advantages:
1) production efficiency is high, and unit is per minute can base 6-12 part;
2) adopt precise wedge lateral base, the part shape of acquisition and dimensional uniformity good, avoid follow-up roughing and obtain the bar portion surface of revolution, improve stock utilization;
3) the inner overall streamline distribution of the hollow hollow valve in bar portion and dish portion that obtains of hollow valve cross wedge rolling forming method is reasonable, organizes fine and closely woven, meets performance requirement;
4) blank each several part all participates in distortion, can obtain refinement and uniform grain structure, is conducive to improving the overall mechanical property of valve.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the utility model cross wedge rolling machine;
Fig. 2 is the partial enlargement structural representation of the utility model cross wedge rolling machine;
Fig. 3 is the structural representation of the utility model forging press;
Fig. 4 is the structural representation of the utility model cross wedge rolling die.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is explained in further detail.Should be appreciated that specific embodiment described herein only for explaining the utility model, and be not used in restriction the utility model.
On the contrary, the utility model is contained any by the substituting of making on marrow of the present utility model and scope of defining of claim, amendment, equivalent method and scheme.Further, in order to make the public have a better understanding to the utility model, in hereafter details of the present utility model being described, detailedly describe some specific detail sections.Do not have the description of these detail sections can understand the utility model completely for a person skilled in the art yet.
As Figure 1-3, a kind of automobile engine hollow valve blank Accurate Shaping assembly applying plug that the utility model provides, the hollow valve blank after described forming assembly comprises the cross wedge rolling machine of a rolling hollow valve blank and a pair rolling carries out the drop press forged;
Described cross wedge rolling machine comprises top roll 1, lower roll 2, and described hollow valve blank 3 is placed between described top roll 1 and lower roll 2, is provided with a round mandrel 5 in described hollow valve blank 3, and described hollow valve blank 3 both sides are provided with the guide plate 4 of fixation hollow valve blank 3.
The diameter of described plug 5 cross section is less than the internal diameter of described hollow valve blank 3; The internal diameter of the cross-sectional diameter D1 of described plug 5 to be (0.7-0.9) * d1, described d1 be hollow valve blank 3 after rolling; Simultaneously the size of described plug 5 is maximum is no more than how many 25mm, is minimumly not less than how many 2mm; The pass of the cross-sectional diameter of described plug 5 and the relative wall thickness of hollow valve blank 3 is: D1=13*Q, and described Q is hollow valve blank 3 original wall thickness and the ratio of hollow valve blank 3 original outer diameter.
The symmetrical line of symmetry of described hollow valve blank 3 and its axes normal, and the middle part of described hollow valve blank is bar portion, its two ends are dish portion, and the linkage section between its bar portion and dish portion is its neck.
Described forging press comprises punch 6 and the die 7 matched with punch 6, and described punch 6 is provided with nose 61 and the shaping concave 62 that stretches into hollow valve blank 3 endoporus, and described nose 61 extends described shaping concave 62; Described die is provided with groove 71 and a shaping convex surface 72 of a placement hollow valve plug, and described groove 71 extends described shaping convex surface 72.
As shown in Figure 4, described cross wedge rolling machine has cross wedge rolling die, described cross wedge rolling die comprises wedging part 11, dwell portion 12 and finishing parts 13.As a further improvement on the present invention, the forming angle of described cross wedge rolling die 1 is 35 ° ~ 38 °, and the broadening angle β 1 of its wedging part 11 is 4 ° ~ 6 °, and the broadening angle β 2 of its dwell portion 12 is 3 ° ~ 5 °.
Claims (5)
1. apply an automobile engine hollow valve blank Accurate Shaping assembly for plug, it is characterized in that, the hollow valve blank after described forming assembly comprises the cross wedge rolling machine of a rolling hollow valve blank and a pair rolling carries out the drop press forged;
Described cross wedge rolling machine comprises top roll, lower roll, and described hollow valve blank is placed between described top roll and lower roll, is provided with a round mandrel in described hollow valve blank, and the diameter of described plug cross section is less than the internal diameter of described hollow valve blank.
2. a kind of automobile engine hollow valve blank Accurate Shaping assembly applying plug according to claim 1, is characterized in that, the internal diameter of the cross-sectional diameter D1 of described plug to be (0.7-0.9) * d1, described d1 be hollow blank after rolling; Simultaneously the size of described plug is maximum is no more than how many 25mm, is minimumly not less than how many 2mm;
The pass of the cross-sectional diameter of described plug and the relative wall thickness of hollow blank is: D1=13*Q, and described Q is hollow blank original wall thickness and the ratio of hollow blank original outer diameter.
3. a kind of automobile engine hollow valve blank Accurate Shaping assembly applying plug according to claim 1, it is characterized in that, described hollow valve blank both sides are provided with the guide plate of fixation hollow valve blank.
4. a kind of automobile engine hollow valve blank Accurate Shaping assembly applying plug according to claim 1, it is characterized in that, the symmetrical line of symmetry of described hollow valve blank and its axes normal, and the middle part of described hollow valve blank is bar portion, its two ends are dish portion, and the linkage section between its bar portion and dish portion is its neck.
5. a kind of automobile engine hollow valve blank Accurate Shaping assembly applying plug according to claim 1, it is characterized in that, described forging press comprises a punch and a die matched with punch, described punch is provided with nose and the shaping concave that stretches into hollow valve blank endoporus, and described nose extends described shaping concave; Described die is provided with groove and a shaping convex surface of a placement hollow valve plug, and described groove extends described shaping convex surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520317480.4U CN204735932U (en) | 2015-05-15 | 2015-05-15 | Use accurate subassembly that takes shape of hollow valve blank of automobile engine of plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520317480.4U CN204735932U (en) | 2015-05-15 | 2015-05-15 | Use accurate subassembly that takes shape of hollow valve blank of automobile engine of plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204735932U true CN204735932U (en) | 2015-11-04 |
Family
ID=54417691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520317480.4U Expired - Fee Related CN204735932U (en) | 2015-05-15 | 2015-05-15 | Use accurate subassembly that takes shape of hollow valve blank of automobile engine of plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204735932U (en) |
-
2015
- 2015-05-15 CN CN201520317480.4U patent/CN204735932U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102672096B (en) | Precision die forging and shaping technical method for automobile steering knuckle rough type parts | |
| CN101549384B (en) | Roll forging technology for producing roll forging parts with length exceeding maximum permissible length of roll forging machine | |
| US10279440B2 (en) | Precision forming method of high-efficiency and near-net hollow valve blank of engine | |
| CN102744356B (en) | Full-fiber bending-upsetting method for crank shaft | |
| CN101912939B (en) | Extruding, upsetting and moulding die and corresponding upsetting method | |
| CN201201030Y (en) | Nitrogen compacting mould for hot trimming and punching forgings | |
| CN110153264A (en) | The integral forming method of coaxial-type electric automobile drive axle axle housing | |
| CN109127982B (en) | Universal die for three-way valve bodies with same caliber and different pressures and forming method | |
| CN109365700A (en) | Complicated arc variable cross-section forging closes forging rolloff manufacturing process | |
| CN106488816A (en) | The manufacture method of crankshaft forging | |
| CN106180257B (en) | Large plate list weld seam threeway forming process and forming device | |
| CN100493821C (en) | Manufacturing method of the coupler yoke for railway wagon | |
| CN205200435U (en) | A forge hot mould for double cam axle spare | |
| CN103586299A (en) | High-alloy steel flexible wheel blank warm-extrusion technology used for harmonic wave decelerator | |
| CN112756538A (en) | Near-net forming die and method for forging hinge beam of refined steel stone pressure equipment | |
| CN204735932U (en) | Use accurate subassembly that takes shape of hollow valve blank of automobile engine of plug | |
| CN105964846B (en) | A kind of manufacturing process of hollow double wedge forging | |
| CN207668268U (en) | It is a kind of to use the sliding hydraulic shaping dies with back pressure punch | |
| CN101462227A (en) | Hot forging composite die making method and hot forging composite mold | |
| CN208513587U (en) | A kind of big specification straight bevel gear finish forge molding machine | |
| CN214442739U (en) | Near-net forming die for forging hinge beam of refined steel stone pressure equipment | |
| CN109261802A (en) | A kind of mold and processing method of the stamping flange of rolled plate | |
| CN205519047U (en) | Nuclear trunk line extrusion frock | |
| CN104924028B (en) | A kind of automobile engine hollow valve blank accurate forming method of application plug | |
| CN103537871B (en) | The processing method of vertical extruding ultrahigh pressure vessel cylindrical shell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151104 |