CN106129813B - A kind of spark plug seal washer locking forming method and seal washer - Google Patents
A kind of spark plug seal washer locking forming method and seal washer Download PDFInfo
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- CN106129813B CN106129813B CN201610406137.6A CN201610406137A CN106129813B CN 106129813 B CN106129813 B CN 106129813B CN 201610406137 A CN201610406137 A CN 201610406137A CN 106129813 B CN106129813 B CN 106129813B
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- washer
- spark plug
- freedom
- solid gasket
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/02—Details
- H01T13/08—Mounting, fixing or sealing of sparking plugs, e.g. in combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T21/00—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs
- H01T21/02—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs of sparking plugs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Spark Plugs (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
A kind of spark plug seal washer locking forming method and seal washer, seal washer are solid gasket, and solid gasket inner ring is penetrated from plug ignition end, and at screw thread to escape, and solid gasket is tightly attached on spark-plug body outer circle supporting surface；The spark plug with solid gasket is put into stamping equipment again, it is characterized in that, mold is cut using splitting in stamping equipment the solid gasket inner ring being placed on spark-plug body outer circle supporting surface split cutting, in the case where mold splits the effect of cutting, the face cut is split at washer endoporus by mold to deform generating material, to topple over toward endoporus between escape, fore shaft is formed, prevents washer from falling off above spark plug.
Description
Technical field
The present invention relates to a kind of production methods and product of spark plug parts, are sealed more particularly, to a kind of spark plug
The locking forming method and sealing ring of circle are mainly used for spark plug sealing ring being stuck on spark plug, prevent sealing ring from dropping out；
Belong to spark plug parts manufacture technology field.
Background technology：
Spark plug is typically all the top that cylinder block is mounted on by spiral, in spark plug metal shell and cylinder cylinder
Between body, the high temperature in cylinder, high pressure gas leak in order to prevent, and flat seat type spark plug can all install a seal washer；Due to
After plug ignition, extreme temperatures after the mixture combustion lighted, so this seal washer can only be metal and cannot
Using common rubber gasket.There are two types of present spark plug seal washer is general, one is stacked washer, another kind is real
Heart washer；The stacked washer is the stacked washer of tradition, is multilayered structure, so between existing centainly between every layer
Gap；The thickness of washer has very big variation with the variation of mounting torque value, can be because of installation for spark plug ignition position
And there is random variation, it is unfavorable for engine and accurately lights a fire；And solid gasket, due to being the single layer solid construction used, so
Deform small, there is no the thickness of stacked washer to have very cataclysmal problem with the variation of mounting torque value, but has presence
Washer is easy to fall off, the problem of influencing to install.So release recently it is a kind of suppressing symmetrical boss on solid gasket inner ring, prevent
The improvement way that only washer falls off, it was also proposed that the scheme of some specific implementations, but from presently disclosed so-called solid pad
It encloses from the point of view of anti-loosening and spillout technique scheme, however it remains some shortcomings mainly have the following：
1, existing solid gasket is anti-loosening and spillout technique scheme, is all the stamping technology scheme taken in solid gasket
Inner ring periphery by compacting produce some boss blocks, need prodigious pressure in this way come make inner ring deformation, be easy to cause
Other parts damages of spark plug；
2, due to being that compacting deformation generation boss is taken to prevent washer from dropping out, so the compacting tool set needs of washer are made
It is more thick and solid, it is otherwise easy to damage by pressure, and the volume of compacting tool set will so be caused to become huge, it is unfavorable for spark plug
The online assembly of seal washer；
3, boss is taken to suppress, it is more difficult to control the projection shape suppressed, or even it is easy to cause the stuck phenomenon of washer,
It is unfavorable for the sealing of washer in this way.
In conclusion preventing washer from dropping out aspect in the auto lock point of control spark plug seal washer at present, remaining
In some shortcomings, it is still necessary to being improved；Do not find have and the patent document report of same technique of the present invention by patent retrieval
Road has the patent of certain relationship mainly to have following with the present invention：
1, Patent No. CN00251919.4, the utility model patent of entitled " energy-saving environment-protection spark " should
Patent discloses a kind of energy-saving environment-protection spark, it is made of spacer ring body (3), valve block (7) and reed (8), spacer ring body
(6) ring recess (9), the bottom clear opening (10) of ring recess (9), inner side edge have translot (11), spacer ring body exterior bottom to have translot on
(12), valve block (7) and reed (8) are mounted in the ring recess (9) on spacer ring body (6), and reed has expansion joint on (8).
2, the invention of Patent No. CN89105719.6, entitled " 4-layer-overlapped washer forming method and mold " are special
Profit is that section is first shaped to by sheet metal as L shape which disclose a kind of 4-layer-overlapped washer forming method and mold
Ring cylinder finally ring drum outer wall after flange and its flange necking are deformed then to ring cylinder inside and outside wall port outward flanging, extrusion
Flange simultaneously makes outer wall be bent to axle center to flanged lip along be bonded with outer wall final molding as 4-layer-overlapped washer along lower circumference.
Above-mentioned three one-step formings process is realized in a mold and a procedure respectively.The molding 4-layer-overlapped washer of institute is variable
Shape amount is big, appearance and good seal performance, has produced in batches and has substituted nickel-plated copper stacked washer and is assemblied in spark for export
Export trade beyond the Great Wall.
3, Patent No. CN201210399361.9, the patent of invention of entitled " spark plug and engine main body component ",
Which disclose a kind of components, including engine main body, spark plug and seal washer.By by the male thread portion of spark plug
It is screwed into the female thread portion of engine main body, spark plug is installed to engine main body, wherein seal washer is mobilizing owner
Flexible deformation between the seat surface of body and the face of taking a seat of spark plug.Seal washer by yield stress or 0.2% proof stress not
Metal material less than 200N/mm2 is fabricated.Seal washer has respectively take a seat face and the engine main body with spark plug
First and second contact surfaces of seat surface contact.First and second contact surfaces of seal washer are respectively formed as the bending with convex
The part on surface, and be offset from one another in the radial direction of spark plug.
4, Patent No. CN201280034543.4, the patent of invention of entitled " spark plug ", which disclose one kind
Realize the technology for ensuring air-tightness and washer capable of being inhibited to loosen.It is main that spark plug is provided with the cylinder extended in the axial direction
Body；With the ring washer for being arranged around the main body.The washer is solid, and is consisted primarily of copper, and includes
At least nickel of 0.1wt%.Maximum gauge of the washer in the axial direction is at least 0.4mm, and the Vickers of the washer
Hardness is in 30HV between 150HV.
Though these above-mentioned patents have been directed to the seal washer of spark plug, and propose some improved technology schemes,
But carefully analyze it can be found that these patents there is no positive true solution determine current spark plug seal washer during compression moulding
The problem of being susceptible to, therefore some foregoing problems still have, and still need further to be improved.
Invention content
It is an object of the invention to existing in the mode for preventing washer from dropping out for the seal washer of existing spark plug
Deficiency, propose a kind of new spark plug seal washer locking forming method and seal washer, spark plug seal washer locking
The locking molding of spark plug seal washer had not only may be implemented in forming method and seal washer, but also can guarantee its that will not damage spark plug
Its parts, and forming die structure is small and exquisite.
In order to reach this purpose, the present invention provides a kind of spark plug seal washers to lock forming method, seal washer
For solid gasket, solid gasket inner ring is penetrated, and at screw thread to escape from plug ignition end, and makes solid pad
Circle is tightly attached on spark-plug body outer circle supporting surface；The spark plug with solid gasket is put into stamping equipment again, utilizes peace
Splitting in stamping equipment cuts mold and split cutting to the solid gasket inner ring being placed on spark-plug body outer circle supporting surface,
In the case where mold splits the effect of cutting, at washer endoporus the face cut is split by mold to deform generating material, to toward endoporus to escape it
Between topple over, formed fore shaft, prevent washer from falling off above spark plug.
Further, the solid gasket is single layer faced washer, and has a circle washer certainly in the inner ring of solid gasket
By face, the scope of freedom close to washer endoporus side, split cut mold split the when of cutting at solid gasket endoporus be split with mold cut washer freedom
Face so that some or all of washer scope of freedom generating material deforms, and to topple over toward endoporus between escape, forms lock
Mouthful, prevent washer from falling off above spark plug.
Further, the washer scope of freedom is an inclined-plane, is by oblique inclined-plane inside outside so that solid gasket
Outer ring is thicker than the thickness of inner ring, and the inner ring scope of freedom can be facilitated to split in this way and form fore shaft when cutting.
Further, the fore shaft shape is the circular arc of multistage etc. point arrangement or is entire annulus.
Further, the fore shaft shape is circular arc type, and the width of quantity >=2 of circular arc, circular arc corresponds to fan angle
≥5°；Decile is distributed.
A kind of spark plug seal washer by made by above-mentioned forming method, spark plug seal washer are solid gasket,
The solid gasket is single layer faced washer, and has a circle washer scope of freedom in the inner ring of solid gasket, and the scope of freedom is close to pad
Endoporus side is enclosed, is cut with toward endoporus to the fore shaft toppled between escape, is prevented by splitting to cut mold and split on the washer scope of freedom
Washer falls off above spark plug.
Further, the washer scope of freedom is an inclined-plane, is by oblique inclined-plane inside outside so that solid gasket
Outer ring is thicker than the thickness of inner ring, and the inner ring scope of freedom can be facilitated to split in this way and form fore shaft when cutting.
Further, the fore shaft shape is to split to cut mold and split the circular arc of triangle multistage cut out etc. point arrangement or be
Entire annulus.
Further, the fore shaft shape is triangle multi-section circular arc, and the quantity of circular arc is greater than or equal to >=2, circular arc
Width correspond to fan angle be greater than or equal to >=5 °；Decile is distributed.
The advantage of the invention is that：The present invention is by the way of splitting cut type, by the inner ring scope of freedom of spark plug seal washer
The fore shaft for cutting out and preventing seal washer from being dropped out from spark plug is split, there is the following benefit：
1, using butt formula formation lock is split, tool axial crush-cutting power in need is smaller, is easy to be molded；
2, other components on easy damaged spark plug are not allowed using splitting butt formula；
3, it splits butt formula and is formed by lock, shape is regular, is easy to control sizing, is not in stuck on spark plug
Phenomenon；
4, using splitting produced by butt formula is split, to cut mould volume structure small, is easy to realize in the production line.
Description of the drawings：
Fig. 1 is the structural schematic diagram before the spark plug seal washer assembly of one embodiment of the invention；
Fig. 2 is the overlooking structure diagram of attached drawing 1；
Fig. 3 is the structural schematic diagram after the spark plug seal washer assembly of one embodiment of the invention；
Fig. 4 is the overlooking structure diagram of attached drawing 3；
Fig. 5 is the structural schematic diagram before the spark plug seal washer assembly of another embodiment of the present invention；
Fig. 6 is the overlooking structure diagram of attached drawing 5；
Fig. 7 be spark plug seal washer of the present invention split cut mold in split and cut flow diagram.
Specific implementation mode
Below in conjunction with drawings and examples, the present invention will be further described.
Embodiment one
As shown in attached drawing 1,2 and 3,4, a kind of spark plug seal washer locking forming method, using the solid pad of single layer tablet
Circle, 1 inner ring hole of single layer tablet solid gasket is penetrated from plug ignition end 2, and across at screw thread to escape 3, and is made
Solid gasket 1 is tightly attached on spark-plug body outer circle supporting surface 4；The spark plug with solid gasket 1 is put into stamping equipment 5 again
In, mold 6 is cut to being placed in the solid gasket on spark-plug body outer circle supporting surface using splitting in stamping equipment
Circle split cutting, and is cut under mold 6 splits the effect of cutting splitting, is split the face cut by mold at 1 endoporus of solid gasket and deform generating material,
To topple over toward endoporus between escape, fore shaft is formed, prevents washer from falling off above spark plug.
Respectively there is a circle washer scope of freedom 7 on the inner ring two sides of the single layer tablet solid gasket 1, the scope of freedom 7 is close to pad
Enclose endoporus 8 side so that the inner ring of single layer tablet solid gasket 1 becomes a shape to close up to outer inclined-plane, splits and cuts mold 6 and split
It is that the washer scope of freedom 7 for cutting solid gasket 1 is split with mold when cutting at solid gasket endoporus so that send out the part on the washer scope of freedom 7
Green material deforms, and to topple over toward endoporus between escape, forms fore shaft 9, prevents washer from falling off above spark plug.
The inclined-plane on the washer scope of freedom 7 is by oblique inclined-plane inside outside so that the outer ring of solid gasket is thicker than inner ring
Thickness, the inner ring scope of freedom can be facilitated to split when cutting formation fore shaft 9 in this way.
9 shape of fore shaft is to split to cut the circular arc block that mold 6 splits triangle multistage cut out etc. point arrangement, circular arc block
Quantity is 4,4 sections of circular arcs etc. point distribution, and the width of circular arc corresponds to 15 ° of fan angle.
The technological process of the spark plug seal washer locking forming method is as shown in Fig. 7, is as follows：
1, brass material is chosen, by stamping out single layer tablet solid gasket；
2, the shape washer scope of freedom closed up with two inward-facing inclined-planes is suppressed by mold on press；
3, single layer tablet solid gasket endoporus is processed so that the endoporus of single layer tablet solid gasket and spark plug
Screw rod reaches transition cooperation；
4, by the single layer tablet solid gasket made from plug ignition end cap on plug ignition end is metal threaded,
It is moved at escape；
5, the spark plug for being cased with single layer tablet solid gasket is put into split and is cut in mold, mold is cut to being placed in fire by splitting
The solid gasket inner ring scope of freedom on flower plug shell outer circle supporting surface split cutting so that 4 sections of arch sections on the washer scope of freedom
Generating material deforms, and to topple over toward endoporus between escape, forms fore shaft, reaching prevents washer from falling off above spark plug
Purpose.
Embodiment two
The basic principle of embodiment two and embodiment one is, only structure is different, as shown in figures 3 and 4, is
A kind of spark plug seal washer locks forming method, and seal washer is solid gasket, by solid gasket inner ring from plug ignition
End penetrates, and at screw thread to escape, and solid gasket is tightly attached on spark-plug body outer circle supporting surface；Again by band
There is the spark plug of solid gasket to be put into stamping equipment, mold is cut to being placed in spark plug using splitting in stamping equipment
Solid gasket inner ring on shell outer circle supporting surface split cutting, and is split and cuts by mold in the case where mold splits the effect of cutting, at washer endoporus
Face generating material is deformed, to toppling over toward endoporus between escape, formation fore shaft prevents washer emaciated face from spark plug
It falls.
The solid gasket is single layer faced washer, and has a circle washer scope of freedom in the inner ring of solid gasket, freely
Split that cut mold to split the when of cutting at solid gasket endoporus be to be split to cut the washer scope of freedom with mold close to washer endoporus side in face so that pad
The generating material deformation of some or all of the scope of freedom is enclosed to form fore shaft to toward endoporus between escape topple over, prevent washer
It falls off above spark plug.
The washer scope of freedom is an inclined-plane, is by oblique inclined-plane inside outside so that the outer ring of solid gasket is thicker than
The thickness of inner ring can facilitate the inner ring scope of freedom to split and form fore shaft when cutting in this way.
The fore shaft shape is the arc section of triangular shape multistage etc. point arrangement, and the quantity of arc section is 3, the width of circular arc
Corresponding fan angle is 35 °；3 equal points of distributions.
It is the same that washer, which forms the method and steps of lock and embodiment one,.
Embodiment three
The basic principle of embodiment three and embodiment one is, only structure is different, as depicted in figures 5 and 6, is
A kind of spark plug seal washer locks forming method, and seal washer is solid gasket 201, by 201 inner ring of solid gasket from spark
Plug firing tip penetrates, and at screw thread to escape, and solid gasket is tightly attached on spark-plug body outer circle supporting surface；
The spark plug with solid gasket is put into stamping equipment again, mold is cut to being placed in using splitting in stamping equipment
Solid gasket inner ring on spark-plug body outer circle supporting surface split cutting, and is cut under mold splits the effect of cutting splitting, at washer endoporus
The face cut is split by mold to deform generating material, to topple over toward endoporus between escape, is formed fore shaft, is prevented washer from fire
Emaciated face is fallen flower beyond the Great Wall.
The solid gasket 201 is single layer faced washer, and has a circle washer scope of freedom in the inner ring of solid gasket, from
By face close to washer endoporus side, split that cut mold to split the when of cutting at solid gasket endoporus be to be split to cut the washer scope of freedom with mold so that
The deformation of washer scope of freedom whole generating material, to topple over toward endoporus between escape, formation fore shaft 209, prevent washer from
It falls off above spark plug.
It is by oblique oblique inside outside respectively there are one inclined-plane that the washer scope of freedom, which is on the two sides of the inner ring of solid gasket,
Face so that the outer ring of solid gasket is thicker than the thickness of inner ring, and the inner ring scope of freedom can be facilitated to split in this way and form fore shaft when cutting.
The fore shaft shape is entire annulus, cuts the washer scope of freedom by splitting to cut mold and split, becomes a circle similar to three
Angle groove 210, is formed by the triangular shape of fore shaft shape as depicted in figures 5 and 6, and three arms of angle form one by 211 transition of circular arc
A intilted spininess clip, is caught at spark plug escape.
Above-mentioned listed embodiment, only carries out clear, complete description in conjunction with attached drawing to technical scheme of the present invention；It is aobvious
So, described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, all other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
It will be apparent that being clear that the invention further relates to one kind passing through above-mentioned forming method institute by the description of embodiment
Manufactured spark plug seal washer, spark plug seal washer are solid gasket, and the solid gasket is single layer faced washer, and
There is a circle washer scope of freedom in the inner ring of solid gasket, the scope of freedom is close to washer endoporus side, by splitting on the washer scope of freedom
It cuts mold and splits and cut with toward endoporus to the fore shaft toppled between escape, prevent washer from falling off above spark plug.
Further, the washer scope of freedom is an inclined-plane, is by oblique inclined-plane inside outside so that solid gasket
Outer ring is thicker than the thickness of inner ring, and the inner ring scope of freedom can be facilitated to split in this way and form fore shaft when cutting.
Further, the fore shaft shape is the circular arc of multistage etc. point arrangement or is entire annulus.
Further, the fore shaft shape is circular arc type, and the quantity of circular arc is greater than or equal to >=2, the width pair of circular arc
Fan angle is answered to be greater than or equal to >=5 °；Decile is distributed.
The advantage of the invention is that：The present invention is by the way of splitting cut type, by the inner ring scope of freedom of spark plug seal washer
The fore shaft for cutting out and preventing seal washer from being dropped out from spark plug is split, there is the following benefit：
1, using butt formula formation lock is split, tool axial crush-cutting power in need is smaller, is easy to be molded；
2, other components on easy damaged spark plug are not allowed using splitting butt formula；
3, it splits butt formula and is formed by lock, shape is regular, is easy to control sizing, is not in stuck on spark plug
Phenomenon；
4, using splitting produced by butt formula is split, to cut mould volume structure small, is easy to realize in the production line.
Claims (3)
1. a kind of spark plug seal washer locks forming method, using single layer tablet solid gasket, by single layer tablet solid gasket
（1）Inner ring hole is from plug ignition end（2）It penetrates, and at screw thread to escape（3）, and solid gasket 1 is tightly attached to
Spark-plug body outer circle supporting surface（4）On；Solid gasket will be carried again（1）Spark plug be put into stamping equipment（5）In, feature
It is, mold is cut using splitting in stamping equipment（6）To the solid pad being placed on spark-plug body outer circle supporting surface
Circle inner ring split cutting, and mold is cut splitting（6）It splits under the effect of cutting, solid gasket（1）Being split the face cut at endoporus by mold will occur
Material deforms, and to topple over toward endoporus between escape, forms fore shaft, prevents washer from falling off above spark plug；Described
Single layer tablet solid gasket（1）Inner ring two sides respectively have a circle washer scope of freedom（7）, the scope of freedom（7）Close to washer endoporus 8 one
Side so that single layer tablet solid gasket（1）Inner ring become one to outer inclined-plane close up shape, split and cut mold（6）It splits conscientiously
It is to be split to cut solid gasket with mold when at heart washer endoporus（1）The washer scope of freedom（7）So that the washer scope of freedom（7）Part
Generating material deforms, and to topple over toward endoporus between escape, forms fore shaft（9）, prevent washer from falling off above spark plug；
The inclined-plane on the washer scope of freedom 7 is by oblique inclined-plane inside outside so that the outer ring of solid gasket is thicker than the thickness of inner ring,
The inner ring scope of freedom can be facilitated to split in this way and form fore shaft when cutting（9）；The washer scope of freedom is cut by splitting to cut mold and split, becomes a circle
Lower part is in the groove of tip-angled shape（210）, it is triangular shape to be formed by fore shaft cross sectional shape, and three arms of angle pass through circular arc（211）Transition,
An intilted spininess clip is formed, is caught at spark plug escape；The fore shaft shape is entire annulus or institute
The fore shaft shape stated is the circular arc of 4 sections of equal point arrangements；The width of the circular arc of 4 sections of equal point of arrangements corresponds to 15 ° of fan angle, decile point
Cloth.
2. spark plug seal washer as described in claim 1 locks forming method, which is characterized in that the spark plug sealing
The process flow steps that washer locks forming method are as follows：
1）Brass material is chosen, by stamping out single layer tablet solid gasket；
2）The washer scope of freedom of the shape to close up with two inward-facing inclined-planes is suppressed by mold on press；
3）Single layer tablet solid gasket endoporus is processed so that the screw rod of the endoporus and spark plug of single layer tablet solid gasket
Reach transition cooperation；
4）It is mobile by the single layer tablet solid gasket made from plug ignition end cap on plug ignition end is metal threaded
To at escape；
5）The spark plug for being cased with single layer tablet solid gasket is put into split and is cut in mold, mold is cut to being placed in spark plug by splitting
The solid gasket inner ring scope of freedom on shell outer circle supporting surface split cutting so that 4 sections of arch sections on the washer scope of freedom occur
Material deforms, and to topple over toward endoporus between escape, forms fore shaft, reaches the mesh for preventing washer from falling off above spark plug
's.
3. a kind of spark plug seal washer using made by spark plug seal washer locking forming method described in claim 1,
Spark plug seal washer is solid gasket, and the solid gasket is single layer faced washer, and has one in the inner ring of solid gasket
The washer scope of freedom is enclosed, the scope of freedom is arrived on the washer scope of freedom by splitting to cut mold and split to cut with toward endoporus close to washer endoporus side
The fore shaft toppled between escape, prevents washer from falling off above spark plug；The washer scope of freedom is an inclined-plane, be by
Oblique inclined-plane inside outside so that the outer ring of solid gasket is thicker than the thickness of inner ring, when the inner ring scope of freedom can be facilitated to split in this way cut
Form fore shaft；The washer scope of freedom is cut by splitting to cut mold and split, becomes the groove that a circle lower part is in tip-angled shape（210）, formed
Fore shaft cross sectional shape be triangular shape, three arms of angle pass through circular arc（211）Transition forms an intilted spininess clip,
It is caught at spark plug escape；The circle that the fore shaft shape is entire annulus or the fore shaft shape is 4 sections etc. points of arrangements
Arc；The width of the circular arc of 4 sections of equal point of arrangements corresponds to 15 ° of fan angle, decile distribution.
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| CN201610406137.6A CN106129813B (en) | 2016-06-12 | 2016-06-12 | A kind of spark plug seal washer locking forming method and seal washer |
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| CN201610406137.6A CN106129813B (en) | 2016-06-12 | 2016-06-12 | A kind of spark plug seal washer locking forming method and seal washer |
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| CN106129813B true CN106129813B (en) | 2018-09-07 |
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| CN107214239A (en) * | 2017-08-09 | 2017-09-29 | 株洲湘火炬火花塞有限责任公司 | A kind of spark plug seal washer locking means and seal washer and packing ring preparation method |
| JP6839218B2 (en) * | 2019-02-26 | 2021-03-03 | 日本特殊陶業株式会社 | How to make a spark plug |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103797670A (en) * | 2011-07-11 | 2014-05-14 | 日本特殊陶业株式会社 | Spark plug |
| CN104995806A (en) * | 2013-02-15 | 2015-10-21 | 日本特殊陶业株式会社 | Ignition plug |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5755128B2 (en) * | 2011-12-13 | 2015-07-29 | 日本特殊陶業株式会社 | Manufacturing method of spark plug |
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2016
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103797670A (en) * | 2011-07-11 | 2014-05-14 | 日本特殊陶业株式会社 | Spark plug |
| CN104995806A (en) * | 2013-02-15 | 2015-10-21 | 日本特殊陶业株式会社 | Ignition plug |
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Address after: 412001 No. 68 Hongqi Road North, Hunan, Zhuzhou Patentee after: Weichai torch Technology Co.,Ltd. Address before: 412001 No. 68 Hongqi Road North, Hunan, Zhuzhou Patentee before: ZHUZHOU TORCH SPARKPLUG Co.,Ltd. |
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