CN103904561A - Bending device - Google Patents
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- CN103904561A CN103904561A CN201210585883.8A CN201210585883A CN103904561A CN 103904561 A CN103904561 A CN 103904561A CN 201210585883 A CN201210585883 A CN 201210585883A CN 103904561 A CN103904561 A CN 103904561A
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Abstract
The invention provides a bending device comprising a frame, and a profile and a bent portion forming component which are arranged on the frame. The bending device further comprises a driving component, a first stroke component and a second stroke component. The first stroke component is arranged on the frame, moves along the frame from an initial position under the action of the driving component, and enables the profile associated therewith to be switched to a working position after moving by a predetermined distance. The second stroke component is arranged on the frame and includes a motion unit and a motion transformation unit, wherein the motion unit starts to move when the first stroke component moves by the predetermined distance from the initial position, and the motion transformation unit transforms movement of the motion unit into curve motion so as to drive the bent portion forming component associated with the motion transformation unit to act.
Description
Technical field
The present invention relates to bending device, relate in particular to the strip bending device of the grounding electrode of spark plug.
Background technology
The spark plug that automobile engine is used generally comprises the central electrode extending along spark plug axis direction, is positioned at the insulator outside central electrode, and the tubular metal-back by insulator in being wrapped in and engaged at end are to the grounding electrode of the leading section of this metal-back.Grounding electrode is configured to terminal surface to central electrode, limits spark-discharge gap thus between central electrode and grounding electrode.
Needing special purpose device is required form by grounding electrode bending, this class device generally includes the turn of bilge molded component of the bend at end that grounding electrode is not connected with housing, prevent the pattern that grounding electrode is out of shape in bending process, drive the parts of turn of bilge molded component operation, drive the parts of pattern operation, and for supported grounding electrode bend the parts that operate etc.Publication number is that China's patent application that CN10216024A, name are called " manufacture method of spark plug and the manufacturing installation of spark plug " discloses a kind of spark plug manufacturing installation that relates to turn of bilge molded component and pattern.
Summary of the invention
The invention provides a kind of bending device, it comprises frame, is arranged at pattern and the turn of bilge molded component of this frame, and in addition, this bending device also comprises: driver part; The first stroke part, it is arranged in frame and under the effect of described driver part, from initial position along described machine frame movement, after mobile preset distance, makes the described pattern associated with it be transformed into service position; The second stroke part, it is arranged in described frame and comprises: moving cell, described moving cell at described the first stroke part from its initial position starts mobile preset distance, start mobile, motion converting unit, its movement by described the first moving cell is converted to curvilinear motion, thereby drives the described turn of bilge molded component action associated with this motion converting unit.
By spacing distance being set between the first stroke part and the initial position of the second stroke part, make under the direct action of driver part, the first stroke part and the second stroke part can successively be advanced, thus the pattern that makes to be associated with the first stroke part be first transformed into service position subsequently turn of bilge molded component bend operation.
Brief description of the drawings
Fig. 1 a is an exemplary diagram of spark plug.
Fig. 1 b is that grounding electrode is for example by the schematic diagram after bending device bending of the present invention.
Fig. 2 is according to the structural representation of the bending device of an embodiment of the invention.
Fig. 3 is according to the schematic perspective view of the bending device of a specific embodiment of the present invention.
Fig. 3 a is the schematic cross-section of the part-structure of bending device shown in Fig. 3; The state that Fig. 3 b is structure shown in Fig. 3 a in the time that the end of first module 261 261d has travelled through interval 80 and touches moving cell 281; Fig. 3 c has illustrated the thin portion of turn of bilge molded component 24.
Fig. 4 is the alternative structure of structure shown in Fig. 3 a.
Embodiment
Describe schematic example of the present invention referring now to accompanying drawing, identical drawing reference numeral represents identical element.Each embodiment described below contributes to those skilled in the art thoroughly to understand the present invention, and is intended to example and unrestricted.In figure, the diagram of each element, parts, module, device and apparatus body is not necessarily drawn in proportion, only illustrate schematicallys the relativeness between these elements, parts, module, device and apparatus body.
In all examples herein, all describe as example using bending device bending spark plug, but not as limit, the bending device of example shown here also can be used for bending the parts that other need to bend.
Fig. 1 a is an exemplary diagram of spark plug.Spark plug comprises the central electrode 10 extending along spark plug axis direction, and the insulator (not shown) being located at outside central electrode 10 is wrapped in to interior metal-back 11, and one end is connected in the grounding electrode 12 of metal-back 11.In the following description, one end grounding electrode 12 being connected with metal-back 11 is called cardinal extremity and the other end is called to end.Fig. 1 b is that grounding electrode is for example by the schematic diagram after spark plug bending device of the present invention bending.
Fig. 2 is according to the structural representation of the bending device of an embodiment of the invention.This bending device comprises frame 20, pattern 22, turn of bilge molded component 24, the first stroke part 26, the second stroke parts 28, elastomeric element 30 and driver parts 32.
In conjunction with Fig. 1, in the time of bending grounding electrode 12, pattern 22 is arranged between central electrode 10 and grounding electrode 12, to make grounding electrode 12 form the shape of expecting in bending process.In all examples herein, the residing position of pattern 22 in bending process is called to service position.In this example, pattern 22 is arranged at frame 20 associated with the first stroke part 26.
The first stroke part 26 is can straight-line mode being arranged in frame 20.Under the effect of driver part 32, the first stroke part 26 can start along machine frame movement from initial position, and in the time having moved preset distance, makes the pattern associated with it 22 be transformed into service position.
Exemplarily, the first stroke part 26 is associated with pattern 22 by elastomeric element 30.An end of elastomeric element 30 can be fixedly installed in frame 20, in the time that the first stroke part 26 is positioned at initial position, elastomeric element 30 is in confined state, along with the movement of the first stroke part 26, it discharges from confined state, and the loose expansion end of elastomeric element 30 stretches out thus.Pattern 22 is arranged on the expansion end front of elastomeric element 30, and therefore expansion end stretches out in process and acts on pattern 22 at it, makes it change to service position from home position, and according to the present invention, preferably pattern 22 is fixedly connected on elastomeric element 30.Below by the exemplary configuration describing in detail between elastomeric element 30, pattern 22 and the first stroke part 26.Those skilled in the art can modify to this exemplary configuration as required, only need reach the first stroke part 26 in the time advancing preset distance, make pattern 22 be transformed into the function of service position.
Turn of bilge molded component 24 is arranged in frame 20, in the process of rotating towards grounding electrode 12 at it, will force in grounding electrode 12, thereby makes the terminal surface of electrode 12 to central electrode 10 bendings.Turn of bilge molded component 24 is driven by the second stroke part 28.
According to example of the present invention, the second stroke part 28 is arranged in frame 20, and comprises moving cell and motion converting unit.Moving cell is with can straight-line mode associated with the first stroke part 26, and specifically, moving cell, has moved after preset distance at the first stroke part 26 from its initial position, starts mobile.According to a specific embodiment of the present invention, between the initial position of the moving cell of the second stroke part 28 in frame and the initial position of the first stroke part 26 in frame, there is preset distance, and moving cell and the first stroke part 26 first stroke part 26 that is arranged so that in frame is being advanced preset distance from initial position, touch also and then promote this moving cell and move.The motion of moving cell is converted to curvilinear motion by motion converting unit, drives thus turn of bilge molded component 24 to bend operation.
According to one embodiment of present invention, this bending device also can comprise driver part 32.Thereby driver part 32 can act on the first stroke part 26 moves the first stroke part 26.In conjunction with mentioned above, driver part 32 is acting on after the first stroke part 26, the first stroke part 26 is along machine frame movement, moving after preset distance, make the pattern associated with it 22 between central electrode and grounding electrode, the moving cell that also promotes the second stroke part 28 subsequently moves, and this moves the bending that is converted to bending molded component 24 by motion converting unit, thereby grounding electrode backfin is become to desired shape.
Visible, driver part 32 applies once and drives, just make two stroke parts successively mobile according to expection, and then the relevant position that makes pattern 22 first snap in spark plug first make pattern 22 be converted to service position, even and after it proceeds to service position turn of bilge molded component 24 start bending operation.Arranging of preset distance need make the first stroke part 26 move within this time period, just can make associated pattern 20 transform to service position from its initial position.
Be appreciated that, in all examples herein, in the process of bending device bending spark plug ground electrode, should have bracing or strutting arrangement (such as fixture etc.) spark plug to be supported and fixed to wait to bend, and bending device self is also set to the position that is suitable for operation.In addition, in example herein, more than parts, element or a device are arranged at frame 20, but this does not show that these parts, element or device are arranged on the same position of frame 20.As it will be appreciated by those skilled in the art that, these parts, element or device are arranged on the appropriate location of frame 20 to be conducive to their work, these positions possibilities are identical also may be different, may also may be at the not homonymy of frame at the homonymy of frame, consider that frame 20 itself is not emphasis of the present invention, for for purpose of brevity, it is not specifically described herein.
Fig. 3 is the schematic perspective view of bending device according to an embodiment of the invention.In this embodiment, the driver part 32 of bending device is cylinder, and hereinafter driver part 32 is used interchangeably with cylinder 32.The piston rod (not indicating) of cylinder 32 is connected with the first stroke part 26 by connector 302, and this connector 302 can be floating junction.
The first stroke part 26 comprises the first module (referring to the first module 261 in Fig. 3 a) and the second unit 262 that are arranged in frame, in this example, first module is being arranged on frame by rectilinear motion mode, and first module can be along frame moving linearly.Fig. 3 a is the schematic cross-section of the part-structure of bending device shown in Fig. 3.As shown in Figure 3 a, first module 261 end 261a is connected with the piston rod of cylinder 32 by connector 302.Get back to Fig. 3, (see that Fig. 3 a) is fixedly connected with the Part I 2621 of second unit 262, fixed form is for example for screw is fixed for the other end 261b place of first module 261.The Part II 2622 of second unit 262 is for example vertical by screw and be fixed on Part I 2621.Example and without limitation, the middle body of Part I 2621 can hollow out, to change as required pressure contact portion in turn of bilge molded component (below will describe).
Part II 2622 comprises the arcwall face being connected by the first plane, with the first plane and the chain of command forming the second plane being connected with this arcwall face, can be by this chain of command and elastomeric element coordinate to control elastomeric element.Elastomeric element 30 comprises with moving cell 301 and Flexible element (not shown).Wherein, Flexible element is for example spring, and frame is fixed in an end (calling stiff end in the following text) of this spring and the other end (calling expansion end in the following text) is scalable; Base portion (or being called the Part I with moving cell 301) with moving cell 301 is arranged on before spring expansion end, from for the projection (or being called the Part II with moving cell 301) loading and the housing 70 (this housing 70 is parts of frame) of secures resilient member protrudes relatively, be close to chain of command with moving cell 301.As a concrete example, Part II 2622 comprises the extended transition body 2622-2 from Part II body 2622-1, and chain of command is formed on this transition body 2622-2 that side of Part II body 2622-1 dorsad.As shown in the figure, chain of command comprises the first plane 2622a, the arcwall face 2622b (arcwall face 2622b is the second plane) being connected with the first plane 2622a, and changing the 3rd plane 2622c being connected with this arcwall face into from this arcwall face, its midplane 2622a is parallel with plane 2622c.In the initial condition of the first stroke part 26, plane 2622a keeps out elastomeric element 30, makes it can not act on pattern.
In embodiment shown in Fig. 3, elastomeric element 30 be resisted against plane 2622a with moving cell 301.In Fig. 3, do not illustrate Flexible element and pattern, do not illustrate with the configuration relation between moving cell 301, Flexible element and pattern yet, only with the form of example, these parts and configuration relation thereof are described at this.
Flexible element and pattern are all arranged in housing 70, and Flexible element stiff end is fixed on housing 70 (fixed position can referring to two fixed screw 70a in figure and 70b).At the first stroke part 26 during in initial condition, Flexible element is in confined state, thereby and stops this telescopic end to stretch out with the base portion of moving cell 301 and the expansion end butt of Flexible element.According to an example, pattern is fixedly connected on a side of this base portion with moving cell 301, and this side is relative with that side of this base portion butt Flexible element.When the first stroke part 26 is under the once promotion of driver part 32 piston rods, in the time that x direction moves linearly along frame, plane 2622a moves simultaneously, therefore be moved to arcwall face 2622b in the effect of compressed Flexible element with moving cell 301, pattern is by along releasing along direction y thus, until move to plane 2622c with moving cell 301 from arcwall face 2622b, now, pattern is also converted to service position just.Be appreciated that in this example, Flexible element be configured such that until telescopic end when moving to plane 2622c with moving cell 301 still in compressive state, just compression degree now before stretching out than telescopic end lightly.In addition the central angle that, is appreciated that arcwall face 2622b can be arranged to 45 degree.
Referring to Fig. 3 a, the second stroke part is arranged in frame, and it comprises moving cell 281 and motion converting unit 282.Moving cell 281 is associated with the first stroke part 26, more specifically, is associated with the first module 261 of the first stroke part 26.In this example, first module 261 is matrix substantially, on two end 261c and 261d that connecting axle 200 is for example screwed in that first module 261 protrudes.Moving cell 281 comprises bar shaped portion (not label) and from the extended tooth-like part 2812 of bar shaped portion one side.In bar shaped portion, be provided with through hole along this bar shaped portion length direction, connecting axle 200 is through this through hole.Two ends that can contact with through hole at connecting axle 200, arrange respectively lining, to prevent the wearing and tearing between connecting axle 200 and through hole.Part beyond moving cell tooth-like part is substantially all contained in the recess of first module 261.Between the end 261c that two end 281c of moving cell 281 and 281d protrude with corresponding first module 261 respectively and 261d, there is interval.Between the end of moving cell 281 281d and the end 261d of first module 261, there is the interval 80 of preset distance, there is Qie Gai interval, interval between the end of moving cell 281 281c and the end 261c of first module 261 in, be provided with in compressed elastic component 40 (it is for example spring), the stopper section 50 being fixed in frame is set at 281d place, the end of moving cell 281.Motion converting unit 282 is gear, and it is engaged to the tooth-like part 2812 of moving cell 281, thereby by their engagements each other and the motion of moving cell 281 is converted to rotatablely moving of gear.Motion converting unit 282 is connected with turn of bilge molded component, thereby drives its rotation.This be noted that form moving cell 281 bar shaped portion and can be integrated from its extended tooth-like part.
In the time that the first stroke part 26 remains static, stop portion 50 and compressed elastic component 40 stop the moving cell 281 of the second stroke part 28 to produce mobile.After driver part 32 drives first module 261 to move by its piston rod, the confined state of the compressed elastic component between first module 261 end 261c and moving cell 281 ends is alleviated to some extent, but still in confined state, thus, moving cell 281 is still fixed between stop portion 50 and elastic component 40 relatively, it should be noted that, according to example of the present invention, bending this elastic component 40 in the whole process operating at bending device, all in confined state, is that compressed degree changes to some extent.Moved preset distance in first module 261, that is the end 261d of first module 261 travels through after interval 80 touches moving cell 281, continued mobile first module 261 and will promote moving cell 281 and move.The state that Fig. 3 b is structure shown in Fig. 3 a in the time that the end of first module 261 261d has travelled through interval 80 and touches moving cell 281.As shown in the figure, now, between the end of moving cell 281 281d and the end 261d of first module 261, the interval of preset distance has been transformed between end 281c and 261c originally.
Fig. 4 is the distressed structure of structure shown in Fig. 3 a.In this structure, be that elastic component 42 is fixed by the second component 421 that is fixed on the first component 420 in bar shaped portion and be fixed in frame for relatively fixing moving cell 281.Similar with elastic component 40, bending this elastic component 42 in the whole process operating at bending device, all in confined state, is that compressed degree changes to some extent.According to the present invention, moving cell 281 is associated with first module 261 by connecting axle 200, in example given herein, connecting axle 200 is through the hole in moving cell 281 bar shaped portions, has realized thus the associated of moving cell 281 and first module 261.In concrete enforcement, also can otherwise form the associated of moving cell 281 and first module 261, only need realization after first module 261 moves the scheduled time, just can drive mobile unit 281 to move.For example, can towards the direction of first module 261, two parts that are fixed on bar shaped portion be set in two of a bar shaped portion end, connecting axle just can through the hole being arranged in these two parts.
It should be noted that, only the example arrangement of attainable cost invention spirit in conjunction with the each parts shown in this example and matching relationship thereof, those skilled in the art can modify according to it, change to reach same effect, but within the claim scope that these modifications and changes are still advocated in the present invention.
Fig. 3 c has illustrated the thin portion of turn of bilge molded component 24.As shown in the figure, turn of bilge molded component 24 comprises the connecting portion 241 that is fixedly attached to motion converting unit 282 and the pressure contact portion 242 that is fixedly connected on this connecting portion 241.Pressure contact portion 242 is for example screwed in connecting portion 241.Pressure contact portion 242 contacts the face 242a of grounding electrode, the form fit of its shape and this electrode that will form.
Get back to Fig. 3, simultaneously in conjunction with Fig. 3 a and Fig. 3 c, set forth the operation of described crimp.The piston of cylinder 32 promotes the first module 261 of the first stroke part 26, and first module 261, along machine frame movement, drives the second unit 262 that is fixed on first module 261 to move together simultaneously.In this moving process, elastomeric element 30 with moving cell 301 under the effect of compressed Flexible element, transform to gradually against the second plane 2622b from being resisted against the first plane 2622a of chain of command, in this process, the pattern that promotion is fixed on it stretches out, thereby enter service position, that is snap onto between grounding electrode 12 and central electrode 10 (seeing Fig. 1).In the time that first module 261 has moved spacing distance 80, the end 261d of first module touches the end 281d of the moving cell 281 of the second stroke part 28, at this moment, just enter into the 3rd plane 2622c from the second plane 2622b with moving cell 301, thereby no longer include along the movement of y direction.With moving cell 301 thus backstop live Flexible element continue move ahead, pattern will be positioned at service position and not be pushed.
Along with the continuation of the first module 261 of the first stroke part 26 is moved, the moving cell 281 of the second stroke part 28 is pushed, the motion converting unit 282 that moves through of moving cell 281 converts to and rotatablely moves, and drives the crimp being fixedly connected with motion converting unit 282 to move towards the direction of grounding electrode 12.The movement of first module 261 is until grounding electrode 12 is bent into required form by the pressure contact portion 242 of crimp 24 can stop.After bending finishes, the first module 261 of the first stroke part 26 is under the rightabout effect of piston rod, return initial position, in this course, pattern is under the effect of chain of command 2622, return its initial position from its service position, the second stroke part 28 is also return initial position under the effect of elastic component 40, and this also makes the crimp 24 being driven by the second stroke part 28 return its initial position.
As mentioned above, according to the present invention, the promotion of the piston rod that makes cylinder to the first stroke part, can act on after first stroke part one end time by expection, acts on the first stroke part and the second stroke part simultaneously.Only acting in the time period of the first stroke part, pattern is transformed into service position, and in the time that pattern is transformed into service position, starts to act on the second stroke part, and completes the bending operation of bending device to spark plug by the work of the second stroke part.
Although in description above, disclose specific embodiments of the invention by reference to the accompanying drawings, it will be appreciated by those skilled in the art that, can, in the situation that not departing from spirit of the present invention, disclosed specific embodiment be out of shape or be revised.Embodiments of the invention are only not limited to the present invention for signal.
Claims (8)
1. a bending device, comprises frame, is arranged on pattern and turn of bilge molded component in described frame, it is characterized in that, described bending device also comprises:
Driver part;
The first stroke part, it is arranged in frame and under the effect of described driver part, from initial position along described machine frame movement, after mobile preset distance, makes the described pattern associated with it be transformed into service position;
The second stroke part, it is arranged in described frame and comprises:
Moving cell, described moving cell, starts to move at described the first stroke part from its initial position starts mobile preset distance,
Motion converting unit, its movement by described the first moving cell is converted to curvilinear motion, thereby drives the described turn of bilge molded component action associated with this motion converting unit.
2. bending device as claimed in claim 1, is characterized in that, described bending device also comprises:
Elastomeric element, the stiff end of described elastomeric element is fixedly connected with frame, expansion end in the time that described the first stroke part moves preset distance, discharge and make to be arranged on its described pattern that stretches out direction and be transformed into described service position from confined state.
3. bending device as claimed in claim 2, is characterized in that, described the first stroke part comprises:
First module, it is with after mobile preset distance, and the mode that drives the moving cell of the second stroke part to move in movement is subsequently connected with this moving cell;
Second unit, it is fixedly attached to described first module and moves with the movement of first module, and described second unit comprises:
Part I, is fixedly connected with described first module,
Part II, described Part II is fixedly connected on described Part I, and part is around treating bending member together with described Part I, and described Part II is associated with described pattern by described elastomeric element.
4. bending device as claimed in claim 3, is characterized in that,
Thereby described Part II comprises the chain of command of controlling described elastomeric element for described elastomeric element butt;
Described elastomeric element comprises with moving cell and is fixed on the Flexible element of described frame by stiff end, the described telescopic end with Flexible element described in moving cell Part I stop and its Part II chain of command described in butt under the effect of described Flexible element; And
Described pattern is arranged on a described side with moving cell Part I, and this side is relative with that side of Flexible element described in described Part I stop.
5. bending device as claimed in claim 4, is characterized in that, described chain of command comprises the first plane, the arcwall face being connected with described first surface, the second plane being connected with this arcwall face, described the first plane and described the second plane parallel.
6. bending device as claimed in claim 3, is characterized in that, described moving cell comprises the bar shaped portion that is connected with described first module and the extended tooth-like part of a side from described bar shaped portion; And described motion converting unit comprises and described tooth-like part meshed gears.
7. bending device as claimed in claim 6, it is characterized in that, described first module is female component, described bar shaped portion is associated with described first module by means of the connecting axle that is fixed to two ends that described first module protrudes, described first module, after mobile preset distance, drives described bar shaped portion to move in movement subsequently.
8. the bending device as described in any one in claim 1 to 7, is characterized in that, described driver part is cylinder, and described the first driver part is connected with the piston rod of described cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210585883.8A CN103904561B (en) | 2012-12-31 | 2012-12-31 | Bending device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210585883.8A CN103904561B (en) | 2012-12-31 | 2012-12-31 | Bending device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103904561A true CN103904561A (en) | 2014-07-02 |
| CN103904561B CN103904561B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210585883.8A Active CN103904561B (en) | 2012-12-31 | 2012-12-31 | Bending device |
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| CN (1) | CN103904561B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107408796A (en) * | 2015-03-31 | 2017-11-28 | 日本特殊陶业株式会社 | The manufacture method of spark plug |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040078972A1 (en) * | 2002-10-22 | 2004-04-29 | Denso Corporation | Manufacturing method for a spark plug |
| US7581998B2 (en) * | 2005-09-08 | 2009-09-01 | Ngk Spark Plug Co., Ltd. | Method for regulating aground electrode position in spark plug |
| JP4485512B2 (en) * | 2006-12-25 | 2010-06-23 | 日本特殊陶業株式会社 | Spark plug manufacturing method and spark plug manufacturing apparatus |
| CN102160247A (en) * | 2008-10-06 | 2011-08-17 | 日本特殊陶业株式会社 | Method for manufacturing spark plug and device for manufacturing spark plug |
-
2012
- 2012-12-31 CN CN201210585883.8A patent/CN103904561B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040078972A1 (en) * | 2002-10-22 | 2004-04-29 | Denso Corporation | Manufacturing method for a spark plug |
| US7581998B2 (en) * | 2005-09-08 | 2009-09-01 | Ngk Spark Plug Co., Ltd. | Method for regulating aground electrode position in spark plug |
| JP4485512B2 (en) * | 2006-12-25 | 2010-06-23 | 日本特殊陶業株式会社 | Spark plug manufacturing method and spark plug manufacturing apparatus |
| CN102160247A (en) * | 2008-10-06 | 2011-08-17 | 日本特殊陶业株式会社 | Method for manufacturing spark plug and device for manufacturing spark plug |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107408796A (en) * | 2015-03-31 | 2017-11-28 | 日本特殊陶业株式会社 | The manufacture method of spark plug |
| CN107408796B (en) * | 2015-03-31 | 2019-10-25 | 日本特殊陶业株式会社 | The manufacturing method of spark plug |
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| Publication number | Publication date |
|---|---|
| CN103904561B (en) | 2017-02-08 |
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