CN207534182U - For the rear wall protective device of atomizer punching - Google Patents
For the rear wall protective device of atomizer punching Download PDFInfo
- Publication number
- CN207534182U CN207534182U CN201721478378.8U CN201721478378U CN207534182U CN 207534182 U CN207534182 U CN 207534182U CN 201721478378 U CN201721478378 U CN 201721478378U CN 207534182 U CN207534182 U CN 207534182U
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- China
- Prior art keywords
- rear wall
- atomizer
- protective device
- mandril
- hollow shaft
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Abstract
The utility model is related to fuel injection valve for internal combustion engines technical fields, disclose a kind of rear wall protective device for atomizer punching, the atomizer（9）Be internally provided with fuel gallery（14）, positioned at fuel gallery（14）The atomizer of end（9）Wall surface is equipped with nozzle opening（10）, the rear wall protective device includes the hollow shaft equipped with axially extending bore (6)（1）, mounted on the axially extending bore（6）Interior mandril（2）With can be by mandril（2）The rear wall protection element of station is extremely protected in ejection（3）, the hollow shaft（1）For being mounted on fuel gallery（14）It is interior.When processing nozzle opening on atomizer, after the rear wall protective device of the utility model, by protection of the rear wall protection element to rear wall, can suffer damage to avoid rear wall.
Description
Technical field
It is protected from the utility model is related to fuel injection valve for internal combustion engines technical field more particularly to when processing nozzle opening on atomizer
The device of shield effect.
Background technology
There are one fuel galleries for the inside of fuel injection nozzle in internal combustion engine, and liquid fuel is by this channel again through several micro-
Aperture is sprayed from atomizer.These apertures can be used laser drilling and process.But during using laser boring, when some is small
When hole is punched, the inner surface of hollow atomizer will be damaged by laser beam, face damage interior surface be known as " after
Wall ".
It is therefore desirable to be protected when using laser boring to the rear wall of atomizer, it is avoided to be damaged by laser beam
It is bad.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of rear wall protective device for atomizer punching, energy
When processing nozzle opening, shield to the rear wall of atomizer, it is avoided to suffer damage.
Technical solution is used by the utility model solves its technical problem：Rear wall for atomizer punching protects dress
It puts, the atomizer is internally provided with fuel gallery, and the atomizer wall surface positioned at fuel gallery end is equipped with nozzle opening, described
Rear wall protective device includes the hollow shaft equipped with axially extending bore, the mandril in the axially extending bore and can be ejected by mandril
To the rear wall protection element of protection station, the hollow shaft is used to be mounted in fuel gallery.The protection station is located at
Between the rear wall and nozzle opening position, when rear wall protection element is located at protection station, the machining tool of nozzle opening is processed,
Such as laser beam, it punches Kong Houhui and is applied in rear wall protection element, avoid rear wall and suffer damage.The mandril can be by machine
Tool structure drives or pressure medium-driven, and mechanical structure can be screw-rod structure, toggle etc., and pressure medium can be
Air or inert gas etc..
Further, the rear wall protection element is the spherical shape that can arbitrarily rotate and is not connected to mandril, when rear wall is protected
It is limited jointly by mandril and atomizer wall surface when protection element is in protection station.
Further, the hollow shaft and the fuel gallery clearance fit.
Further, the mandril is piston, and the hollow shaft is included for the cylinder body section of piston movement and for pressure
The pressure channel section that medium is passed through, the internal diameter of cylinder body section axially extending bore is more than the internal diameter of pressure channel section axially extending bore, i.e., in cylinder
It is formed between body section and pressure channel section for the limiting stand to piston limit, the rear wall protection element is located at the top of piston
Outlet.
Further, sealing is equipped between the outer wall of the mandril and the inner wall of hollow shaft.
Further, the rear wall protection element is made of heat proof material or the beam material of resistance to laser.
Further, the stopping element for being set to hollow shaft end for limiting mandril range is further included.
The utility model additionally provides the application method of rear wall protective device punched for atomizer, including following step
Suddenly：
S1 with the outer wall of frock clamp clamping hollow shaft, is fixed hollow shaft；
S2 is packed into mandril in axially extending bore, after being loaded on stopping element and rear wall protection element, by oil spout to be punctured
Mouth is coated in the rear wall protective device and fixes；
S3, driving mandril are moved to the end of atomizer, and rear wall protection element is ejected to protection station；
S4 beats nozzle opening in the end of atomizer；
After the completion of punching, the atomizer for having beaten hole is removed from rear wall protective device by S5.
Further, in the vertical direction, the mandril is arranged as ejecting upwards the axis arrangement of the hollow shaft.
Further, the mandril is the piston driven by air or inert gas.
The beneficial effects of the utility model are：When processing nozzle opening on atomizer, protected using the rear wall of the utility model
After protection unit, by protection of the rear wall protection element to rear wall, it can suffer damage to avoid rear wall；In addition, the utility model is fitted
For processing oil spout using modes such as laser boring, electric spark-erosion perforation, ultrasonic drilling, high pressure water punching, machine cut punchings
To the protection of rear wall during hole.
Description of the drawings
Fig. 1 is the structure diagram of atomizer；
Fig. 2 is the structure diagram of embodiment 1；
Fig. 3 is the signal when carrying out Laser Processing nozzle opening on atomizer after the rear wall protective device using embodiment 1
Figure；
Fig. 4 is the signal when carrying out Laser Processing nozzle opening on atomizer after the rear wall protective device using embodiment 2
Figure；
In figure label for：1- hollow shafts, 2- mandrils, 3- rear wall protection elements, 4- cylinder body sections, 5- pressure channel sections, 6- axis
To through-hole, 7- stopping elements, 8- interface discs, 9- atomizers, 10- nozzle openings, 11- laser beams, 12- rear walls, 13- limiting stands, 14-
Fuel gallery, 21- pistons, 22- connecting rods, 23- turncaps.
Specific embodiment
The utility model is described in further detail with reference to specific embodiment, but the embodiment party of the utility model
Formula is without being limited thereto.
For in a manner of laser boring；
For the rear wall protective device of atomizer punching, as shown in Figure 1, the atomizer 9 is internally provided with fuel gallery
14, nozzle opening 10 to be processed is located at the end of fuel gallery 14, when processing nozzle opening 10, with molding nozzle opening 10 to
9 inner wall of atomizer is rear wall 12.
Embodiment 1：
It is protected as shown in Fig. 2, the rear wall protective device includes the hollow shaft 1 equipped with axially extending bore 6, piston 21, rear wall
Protection element 3 and stopping element 7.The hollow shaft 1 be used for be mounted on fuel gallery 14 in and with the fuel gallery 14 of atomizer 9
Clearance fit；The piston 21 is installed in the axially extending bore 6 of hollow shaft 1, the outer wall of piston 21 and the inner wall of hollow shaft 1 it
Between sealing or both between have smaller gap, hollow shaft 1 include for piston 21 move cylinder body section 4 and for pressure medium
The pressure channel section 5 being passed through, the internal diameter of 4 axially extending bore 6 of cylinder body section is more than the internal diameter of 5 axially extending bore 6 of pressure channel section, i.e., in cylinder
The limiting stand 13 for being limited to piston 21 is formed between body section 4 and pressure channel section 5；The rear wall protection element 3 is located at
The ejection end of piston 21, rear wall protection element 3 are made of heat proof material or the beam material of resistance to laser；The stopping element 7 is set
In the end of 1 cylinder body section 4 of hollow shaft, for limiting the range of piston 21.
As shown in figure 3, the application method of the rear wall protective device for atomizer punching, includes the following steps：
S1 with the outer wall of frock clamp clamping 1 pressure channel section 5 of hollow shaft, is fixed hollow shaft 1, makes hollow shaft 1
Axis arrangement in the vertical direction, wherein frock clamp presss from both sides the outer wall of 5 end of pressure channel section by interface disc 8
It holds；
S2 is packed into piston 21 in axially extending bore 6, then stopping element 7, the ejection of piston 21 end are loaded onto in 4 end of cylinder body section
After being packed into rear wall protection element 3, atomizer 9 to be punctured is coated in the rear wall protective device and fixed；
S3 is passed through air from the pressure channel section 5 of hollow shaft 1, and under the driving of air, piston 21 is from limiting stand 13 to spray
The end movement of oil nozzle 9, rear wall protection element 3 is ejected to the end of protection station, i.e. 9 inner surface of atomizer, to atomizer
Rear wall 12 protected；
S4 is punched using laser boring mode, is punched by laser beam 11 in the end of atomizer 9, is formed nozzle opening 10；
S5 after the completion of punching, stops ventilation, exits piston 21, the atomizer 9 for having beaten hole is taken from rear wall protective device
Under.
Embodiment 2：
As shown in figure 4, the rear wall protective device includes the hollow shaft 1 equipped with axially extending bore 6, mandril 2, rear wall protection
Element 3 and stopping element 7.The hollow shaft 1 is used to be mounted in fuel gallery 14 and between the fuel gallery 14 of atomizer 9
Gap coordinates；The mandril 2 is installed in the axially extending bore 6 of hollow shaft 1, and the end of mandril 2 is connected with connecting rod 22, connecting rod
22 extend from 6 end of axially extending bore and are connected with turncap 23, and mandril 2 is coordinated by screw thread and the inner wall of hollow shaft 1；It is described
Rear wall protection element 3 be located at the ejection end of mandril 2, rear wall protection element 3 is made of heat proof material or the beam material of resistance to laser, institute
The screw thread stated can guarantee the end that the stroke of mandril 2 can make rear wall protection element 3 reach protection station, i.e. 9 inner surface of atomizer；
The stopping element 7 is set to the end of 1 cylinder body section 4 of hollow shaft, for limiting the range of mandril 2.
For the application method of the rear wall protective device of atomizer punching, include the following steps：
S1 with the outer wall of frock clamp clamping hollow shaft 1, is fixed hollow shaft 1, arranges the axis of hollow shaft 1
In the vertical direction, wherein frock clamp clamps the outer wall of 1 end of hollow shaft by interface disc 8；
S2 is packed into mandril 2 and the connecting rod 22 to match, turncap 23 in axially extending bore 6, then is pushed up in hollow shaft 1
Portion loads onto stopping element 7, mandril 2 is ejected after end is packed into rear wall protection element 3, by atomizer 9 to be punctured be coated at it is described after
It is in wall protective device and fixed；
S3 rotates turncap 23, and by the cooperation of screw thread, the end for making mandril 2 to atomizer 9 moves, rear wall is protected
The ejection of element 3 protects the rear wall 12 of atomizer to the end for protecting station, i.e. 9 inner surface of atomizer；
S4 is punched using laser boring mode, is punched by laser beam 11 in the end of atomizer 9, is formed nozzle opening 10；
S5 after the completion of punching, rotates backward turncap 23, exits mandril 2, and the atomizer 9 for having beaten hole is protected from rear wall
It is removed on device.
The prior art when processing nozzle opening 10, when processing nozzle opening 10 in particular by laser mode, beat by laser beam 11
After perforation, the inner surface of atomizer 9 can be caused（That is rear wall 12）Damage, after the rear wall protective device of the utility model,
Process nozzle opening 10 when, rear wall 12 can be protected by the rear wall protection element 3 of heat-resisting or resistance to laser beam, avoid its by
Damage.Rear wall protection element 3 is as the consumables in process, and when hole is punched, laser beam 11 will be hit to protection member
On part 3, the damage of protection element 3 is caused, therefore repeatedly must replace protection element 3 when necessary after punching.
It should be noted, rear wall protection element 3 can be detachably secured on the ejection end end face of mandril 2, at this point, processing
After finishing a collection of workpiece, hollow shaft 1 is rotated, rear wall protection element 3 can be made to meet the surface injected to laser beam 11 and changed, i.e.,
Change the impaired face of rear wall protection element 3, to increase the access times of protection element 3 so that rear wall protection element 3 can be used in
The processing protection of more batches of workpiece, single rear wall protection element 3 reach the rear wall protection element 3 that can more renew after service life.
Another program, rear wall protection element 3 are alternatively the spherical shape that can arbitrarily rotate and are not connected to mandril 2, when rear wall is protected
Protection element 3 is limited jointly when being in protection station by mandril 2 and 9 wall surface of atomizer.It is unconnected to be advantageous in that, rear wall protection member
Part 3 in 2 reciprocatory movement of mandril, meet the surface injected to laser beam 11 can random adjust automatically, that is, change impaired face, with
Increase the access times of protection element 3 so that rear wall protection element 3 can be used for the processing protection of more batches of workpiece, relative to previous
The scheme of fixed rear wall protection element can remove the trouble of rotation hollow shaft from.In addition, the shape of protection element 3 is can phase
To random, usually, protection element 3 can be realized defencive function by it, make other shapes convenient for assembling or adjusting required
Shape.
The utility model is applied also for using electric spark-erosion perforation, ultrasonic drilling, high pressure water punching, machine cut punching etc.
Protection when mode processes nozzle opening to rear wall.
Claims (7)
1. for the rear wall protective device of atomizer punching, the atomizer（9）Be internally provided with fuel gallery（14）, positioned at combustion
Oily channel（14）The atomizer of end（9）Wall surface is equipped with nozzle opening（10）, it is characterised in that：The rear wall protective device includes
Hollow shaft equipped with axially extending bore (6)（1）, mounted on the axially extending bore（6）Interior mandril（2）With can be by mandril（2）Ejection
To the rear wall protection element of protection station（3）, the hollow shaft（1）For being mounted on fuel gallery（14）It is interior.
2. the rear wall protective device according to claim 1 for atomizer punching, it is characterised in that：The rear wall is protected
Protection element（3）For the spherical shape that can arbitrarily rotate and and mandril（2）It is not connected to, when rear wall protection element（3）During in protection station
It is by mandril（2）And atomizer（9）Wall surface limits jointly.
3. the rear wall protective device according to claim 1 for atomizer punching, it is characterised in that：The hollow shaft
（1）With the fuel gallery（14）Clearance fit.
4. the rear wall protective device according to claim 1 for atomizer punching, it is characterised in that：The mandril
（2）For piston（21）, the hollow shaft（1）Including supplying piston（21）Mobile cylinder body section（4）It is passed through with confession pressure medium
Pressure channel section（5）, cylinder body section（4）Axially extending bore（6）Internal diameter be more than pressure channel section（5）Axially extending bore（6）Internal diameter, i.e.,
In cylinder body section（4）With pressure channel section（5）Between formed for piston（21）The limiting stand of limiting（13）, the rear wall protects
Protection element（3）Positioned at piston（21）Ejection end.
5. the rear wall protective device according to claim 4 for atomizer punching, it is characterised in that：The mandril（2）
Outer wall and hollow shaft（1）Inner wall between be equipped with sealing.
6. the rear wall protective device according to claim 1 for atomizer punching, it is characterised in that：The rear wall is protected
Protection element（3）It is made of heat proof material or the beam material of resistance to laser.
7. the rear wall protective device for atomizer punching according to any one in claim 1-6, it is characterised in that：
It further includes and is set to hollow shaft（1）End is used to limit mandril（2）The stopping element of range（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721478378.8U CN207534182U (en) | 2017-11-08 | 2017-11-08 | For the rear wall protective device of atomizer punching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721478378.8U CN207534182U (en) | 2017-11-08 | 2017-11-08 | For the rear wall protective device of atomizer punching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207534182U true CN207534182U (en) | 2018-06-26 |
Family
ID=62612715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721478378.8U Active CN207534182U (en) | 2017-11-08 | 2017-11-08 | For the rear wall protective device of atomizer punching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207534182U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107671435A (en) * | 2017-11-08 | 2018-02-09 | 钦成科技有限公司 | Rear wall protection device and its application method for atomizer punching |
| CN112475490A (en) * | 2020-11-12 | 2021-03-12 | 中国航发沈阳黎明航空发动机有限责任公司 | Wall-to-wall protection method for gas film hole at seam groove part of flame tube in electric spark machining |
-
2017
- 2017-11-08 CN CN201721478378.8U patent/CN207534182U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11179811B2 (en) | 2017-06-13 | 2021-11-23 | Luxcelis Technologies Llc | Back wall protection device for drilling injector nozzle |
| CN107671435A (en) * | 2017-11-08 | 2018-02-09 | 钦成科技有限公司 | Rear wall protection device and its application method for atomizer punching |
| CN112475490A (en) * | 2020-11-12 | 2021-03-12 | 中国航发沈阳黎明航空发动机有限责任公司 | Wall-to-wall protection method for gas film hole at seam groove part of flame tube in electric spark machining |
| CN112475490B (en) * | 2020-11-12 | 2022-08-19 | 中国航发沈阳黎明航空发动机有限责任公司 | Wall-to-wall protection method for air film hole at seam groove part of flame tube in electric spark machining |
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