CN111014987B - Positioning and wall-aligning protection device for laser processing spray hole of fuel spray nozzle - Google Patents
Positioning and wall-aligning protection device for laser processing spray hole of fuel spray nozzle Download PDFInfo
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- CN111014987B CN111014987B CN201911278538.8A CN201911278538A CN111014987B CN 111014987 B CN111014987 B CN 111014987B CN 201911278538 A CN201911278538 A CN 201911278538A CN 111014987 B CN111014987 B CN 111014987B
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- Prior art keywords
- hole
- pressing block
- positioning pin
- oil nozzle
- oil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
- B23K26/382—Removing material by boring or cutting by boring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Fuel-Injection Apparatus (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a positioning and wall-aligning protection device for laser processing spray holes of an oil nozzle, which comprises: the upper end of the base is provided with a screw hole, and the pressing block fixing seat is fixed through the screw; the central axis of the central positioning pin is superposed with the central axis of the base, and the upper end of the central positioning pin is provided with a central rotary inner hole; the protection inner core comprises an inner fixed spring, an ejector rod plug head and an ejector rod, and the protection inner core is arranged in a center rotary inner hole of the center positioning pin; the oil nozzle pressing block is used for fixing the center positioning pin, and the pressing block fixing seat is used for fixing the oil nozzle pressing block. The invention can prevent the inner wall from being damaged when the oil nozzle is processed by laser.
Description
Technical Field
The invention relates to the field of machining, in particular to a positioning and wall-aligning protection device for a spray hole of a laser machining oil spray nozzle.
Background
Based on increasingly strict emission regulations, increasingly strict requirements are put on the aperture, the hole pattern, the position degree of the hole and the flow coefficient of a spray hole of an oil spray nozzle, the traditional drill bit machining and the electric spark machining of an electrode wire are mainly adopted in the existing method for machining the spray hole of the oil spray nozzle, and the two machining methods are mainly determined to be incapable of machining the oil spray hole with the diameter smaller than 0.12mm due to machining accuracy. In recent years, with the development of laser processing technology, the technology of processing the nozzle hole of the fuel injection nozzle by using laser will replace the mechanical processing and electric processing technology. The laser micropore processing has the advantages of high precision, high efficiency, no thermal influence, no material limitation and the like.
At present, the most common positioning system for processing the spray hole of the oil nozzle uses an electric spark fixture, and a hollow positioning ejector rod is arranged in the middle of the positioning system and used for positioning and filling water in the center. Due to the relationship between the high concentration of the energy of the laser processing focus and the depth of focus, certain damage can be caused to the wall when the spray hole is punched through, and the tool cannot be applied to laser processing.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.
The invention provides a positioning and wall-aligning protection device for a spray hole of a laser processing oil nozzle, which can solve the problems that the oil nozzle can be positioned and the inner wall is damaged during laser processing.
To achieve these objects and other advantages and in accordance with the purpose of the invention, a positioning and wall-protecting apparatus for laser machining a nozzle hole of an oil jet is provided, including:
the upper end of the base is provided with a screw hole, and the pressing block fixing seat is fixed through the screw;
the central axis of the central positioning pin is superposed with the central axis of the base, and the upper end of the central positioning pin is provided with a central rotary inner hole;
the protection inner core comprises an inner fixed spring, an ejector rod plug head and an ejector rod, and the protection inner core is arranged in a center rotary inner hole of the center positioning pin;
the oil nozzle pressing block is used for fixing the center positioning pin, and the pressing block fixing seat is used for fixing the oil nozzle pressing block.
Preferably, the base is further provided with two pin holes for fixing the process pins.
Preferably, a central hole is formed in the central shaft of the base, and the inner diameter of the central hole is larger than or equal to the outer diameter of the central positioning pin.
Preferably, the oil nozzle further comprises two process pins, and the two process pins are fixed on the base and used for fixing the oil nozzle.
Preferably, the center positioning pin can be provided as a hollow member.
Preferably, the upper end of the ejector rod plug is provided with a groove, and the ejector rod is arranged in the groove.
Preferably, a round hole is formed in the central axis of the upper end of the oil nozzle pressing block, the diameter of the round hole is the same as the outer diameter of the oil nozzle, and blocking pieces are arranged on two sides of the outer portion of the lower end of the oil nozzle.
Preferably, the center of the pressing block fixing seat is provided with a waist-shaped hole which is larger than the size of the baffle of the glib pressing block.
Preferably, an external pressure spring is further arranged in the nozzle pressing block.
The invention has the beneficial effects that:
1. can prevent to produce the damage to the inner wall when carrying out laser beam machining fuel sprayer.
2. Positioning accuracy is high, can realize the angle location, and the fuel sprayer is fixed can realize installing fast.
3. The wall protection device is suitable for actual production and usability, if a top core tool is manufactured to directly protect the wall, the cost is too high after a plurality of machining processes due to high damage of a laser focus, and the manufacturing cost of the ejector rod in the technical scheme is extremely low.
4. The resilience of the inner jacking spring 8 and the length originally reserved by the ejector rod can ensure that the spring immediately jacks the ejector rod when the ejector rod is interrupted again, so that the counter wall is continuously protected.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic cross-sectional structure diagram of one embodiment of the present invention.
Fig. 2 is a schematic perspective view of an embodiment of the present invention.
FIG. 3 is an enlarged view of a portion of one embodiment of the present invention.
FIG. 4 is a schematic view of a center hole and pin hole of one embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
The terms "upper" and "lower" in the description and claims of embodiments of the invention are used for different objects and are not fixed.
In an embodiment of the present invention, as shown in fig. 1, 2, 3, and 4, the present invention provides a positioning and wall-aligning protection device for laser processing a nozzle hole of an oil nozzle, including:
the upper end of the base 1 is provided with a screw hole, and the pressing block fixing seat 6 is fixed through a screw 10;
the central axis of the central positioning pin 2 is superposed with the central axis of the base 1, and the upper end of the central positioning pin 2 is provided with a central rotary inner hole;
the protection inner core comprises an inner fixed spring, an ejector rod plug 4 and an ejector rod 9, and is arranged in a center rotary inner hole of the center positioning pin 2;
the fixing mechanism comprises a choke pressing block 5 and a pressing block fixing seat 6, wherein the choke pressing block 5 is used for fixing the center positioning pin 2, and the pressing block fixing seat 6 is used for fixing the choke pressing block 5.
Optionally, in the embodiment of the present invention, the base 1 is further provided with a pin hole 13 for fixing the process pin 3.
It is understood that at least two pin holes 13 may be provided.
It can be understood that the central axis of the base 1 is provided with a central hole 12, the inner diameter of the central hole 12 is greater than or equal to the outer diameter of the central positioning pin 2, specifically, the size of the central hole 12 can be set according to the actual use requirement, and the embodiment of the present invention is not limited.
Optionally, in an embodiment of the present invention, the shape of the base 1 may include at least one of: rectangular, oblong, circular, oval, trapezoidal, and irregular shapes, embodiments of the present invention are not limited in any way.
Optionally, in the embodiment of the present invention, a process pin 3 is further included.
It will be appreciated that there are at least two of said technical pins 3, said technical pins 3 being fixed to the base 1 by means of pin holes 13, which are used to fix the oil jets 11.
Alternatively, in the embodiment of the present invention, the center positioning pin 2 may be provided as a hollow member.
It can be understood that the upper end of the mandril plug 4 is provided with a groove, and the mandril 9 is arranged in the groove.
It can be understood that a circular hole is arranged at the central axis position of the upper end of the oil nozzle pressing block 5, the diameter of the circular hole is the same as the outer diameter of the oil nozzle 11, and blocking pieces are arranged on two sides of the outer portion of the lower end of the oil nozzle 11.
It can be understood that the center of the pressing block fixing seat 6 is provided with a waist-shaped hole which is larger than the size of the separation blade of the oil nozzle pressing block 5.
Optionally, in the embodiment of the present invention, an outer pressure spring 7 is further disposed in the choke press block 5, and the combined action of the outer pressure spring 7, the choke press block 5 and the press block fixing seat 6 enables the lower end of the spring to be pressed on the upper end of a shoulder surface of the choke, so as to complete axial fixing of the choke.
In the embodiment of the invention, as shown in fig. 1, 2, 3 and 4, the outer circle and the inner hole of the base 1 have high coaxiality, the central axis of the base 1 is perpendicular to the upper plane and the lower plane, the base 1 is used as the installation reference of the device, the axial position of the oil spray hole workpiece is confirmed through the outer circle of the base 1, and the rotation angle of the oil spray nozzle 11 workpiece can be confirmed through the matching of the pin hole 13 on the base 1 and the process pin 3.
The larger rotary outer diameter of the central positioning pin 2 is used as a method for realizing the coincidence of the axis of the oil nozzle 11 and the axis of the base 1, the outer diameter of the inner top spring 8 is slightly smaller than the bore diameter of the inner bore of the central positioning pin 2, one end of the inner top spring 8 acts on the inner wall of the inner bore of the central positioning pin 2, the other end acts on the lower surface of the mandril plug 4, the ejector rod plug head 4 drives the ejector rod 9 to continuously push to the top of the inner hole wall of the oil nozzle 11 through the resilience of the spring, after the assembly body of the central positioning pin 2, the inner ejection spring 8, the ejector rod plug head 4 and the ejector rod 9 is inserted into the base 1, the distance from the upper end face of the ejector rod 9 to the upper end face of the base 1 is larger than the distance from the top of an inner hole of the oil nozzle 11 to the lower end face by 2mm (the increased 2mm is the size of the compression amount of the inner ejection spring 8), the ejector rod 9 can be ensured to be continuously ejected to the top of the rest part by the spring when being broken by laser, the gap is eliminated, and the wall is ensured not to be damaged.
The ejector rod 9 is used as a damage part directly affected by laser, and few objects can not be damaged in high-energy processing facing a laser focus, so that the ejector rod 9 is made of materials which need to consider high damage threshold and low price, can be generally purchased in the market, and is mainly selected from copper (copper alloy) wires at present and is selected from stainless steel wires.
The center positioning pin 2 can also be a hollow part, and a long ejector rod 9 is selected to be continuously used by automatic equipment during implementation, and can be realized through a center hole 12 in the center of the base 1.
When the oil nozzle 11 is fixed, the oil nozzle 11 is inserted into the hole positions of the central positioning pin 2 and the process pin 3, the check block below the oil nozzle pressing block 5 penetrates through the kidney-shaped hole of the pressing block fixing seat 6, and the oil nozzle 11 can be quickly positioned by pressing down and rotating.
In an embodiment of the present invention, as shown in fig. 1-4, the assembly process is as follows:
firstly, an inner jacking spring 8 is placed in a central rotary inner hole of a central positioning pin 2, then a jacking rod 9 is inserted into a jacking rod plug 4, and the jacking rod plug 4 with the jacking rod 9 is also placed in a central rotary inner control;
secondly, fixing the pressing block fixing seat 6 on the base 1 through a screw 10, fixing the central positioning pin 2 on the base 1 through a central hole, and fixing the process pin 3 on the base 1 through a process hole on the base 1;
thirdly, inserting a central hole of the oil nozzle 11 into the central positioning pin 2, and simultaneously inserting a process hole at the lower end of the oil nozzle 11 into the process pin 3 to play a role in rotary positioning.
Fourthly, the external pressure spring 7 is sleeved on the oil nozzle 11, then the oil nozzle pressing block 5 is pressed into the pressing block fixing seat 6 to rotate for 90 degrees, and at the moment, the two sides of the oil nozzle pressing block 5 are clamped in the inner cavity of the pressing block fixing seat 6 by utilizing the pressure of the spring to be axially fixed.
While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a location and to wall protection device of laser beam machining fuel sprayer orifice which characterized in that includes:
the upper end of the base is provided with a screw hole, and the pressing block fixing seat is fixed through the screw;
the central axis of the central positioning pin is superposed with the central axis of the base, and the upper end of the central positioning pin is provided with a central rotary inner hole;
the protection inner core comprises an inner jacking spring, a jacking rod plug head and a jacking rod, and is arranged in a central rotary inner hole of the central positioning pin;
the oil nozzle pressing block is used for fixing the oil nozzle, and the pressing block fixing seat is used for fixing the oil nozzle pressing block;
a center hole is formed in the position of the center shaft of the base, and the inner diameter of the center hole is larger than or equal to the outer diameter of the center positioning pin;
the outer diameter of the inner top spring is slightly smaller than the bore diameter of the inner bore of the central positioning pin, one end of the inner top spring acts on the inner wall of the inner bore of the central positioning pin, the other end of the inner top spring acts on the lower surface of the ejector rod plug head, the ejector rod plug head drives the ejector rod to continuously push the top of the inner bore wall of the oil nozzle through the restorability of the inner top spring, after the central positioning pin, the inner top spring, the ejector rod plug head and the ejector rod are inserted into the base, and the distance from the upper end surface of the ejector rod to the upper end surface of the base is larger than the distance from the top of the inner bore of the oil nozzle to the lower end surface by 2 mm;
the central positioning pin is a hollow part;
the base is also provided with two pin holes for fixing the process pins;
a waist-shaped hole with the size larger than that of the oil nozzle pressing block separation blade is formed in the center of the pressing block fixing seat;
when the oil nozzle is fixed, the oil nozzle is inserted into the central positioning pin and the process pin hole position, the check block below the oil nozzle pressing block penetrates through the waist-shaped hole of the pressing block fixing seat, and the oil nozzle can be quickly positioned by pressing down and rotating.
2. The device for locating and protecting the wall of the spray hole of the laser machining oil spray nozzle of claim 1, further comprising two process pins, wherein the two process pins are fixed on the base and used for fixing the oil spray nozzle.
3. The device for locating and protecting the wall of the spray hole of the oil spray nozzle in the laser machining process of claim 1, wherein a groove is formed in the upper end of the ejector rod plug, and the ejector rod is installed in the groove.
4. The device for positioning and protecting the wall of the spray hole of the laser processing oil spray nozzle of claim 1, wherein a central shaft position of the upper end of the oil spray nozzle pressing block is provided with a round hole, the diameter of the round hole is the same as the outer diameter of the oil spray nozzle, and two sides of the outer part of the lower end of the oil spray nozzle are provided with baffle plates.
5. The device for locating and protecting the wall of the spray hole of the laser processing oil nozzle of claim 1, wherein an external pressure spring is further arranged in the oil nozzle pressing block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911278538.8A CN111014987B (en) | 2019-12-13 | 2019-12-13 | Positioning and wall-aligning protection device for laser processing spray hole of fuel spray nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911278538.8A CN111014987B (en) | 2019-12-13 | 2019-12-13 | Positioning and wall-aligning protection device for laser processing spray hole of fuel spray nozzle |
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| Publication Number | Publication Date |
|---|---|
| CN111014987A CN111014987A (en) | 2020-04-17 |
| CN111014987B true CN111014987B (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911278538.8A Active CN111014987B (en) | 2019-12-13 | 2019-12-13 | Positioning and wall-aligning protection device for laser processing spray hole of fuel spray nozzle |
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| CN (1) | CN111014987B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101870018A (en) * | 2010-05-31 | 2010-10-27 | 重庆红江机械有限责任公司 | Electrochemical machining method of fuel nozzle spray orifice inner orifice and adopted electrochemical fixture |
| CN103831644A (en) * | 2013-12-05 | 2014-06-04 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Special clamp for fuel spray nozzle spray hole electrosparking |
| CN204108528U (en) * | 2014-09-18 | 2015-01-21 | 中科中涵激光设备（福建）股份有限公司 | Be used in backstay and the positioner of Laser Processing atomizer |
| CN204108527U (en) * | 2014-09-18 | 2015-01-21 | 中科中涵激光设备（福建）股份有限公司 | A kind of backstay of Laser Processing atomizer and positioner |
| CN205478050U (en) * | 2016-03-13 | 2016-08-17 | 聊城科瑞汽车零部件有限公司 | Sprayer injector nozzle matching parts |
| CN206009890U (en) * | 2016-09-10 | 2017-03-15 | 无锡微研精微机械技术有限公司 | A kind of injection hole on injection nozzle processing tool axial direction double-claw type frock clamp |
| 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 |
| JP6432402B2 (en) * | 2015-03-17 | 2018-12-05 | 株式会社デンソー | Laser processing equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4945362B2 (en) * | 2007-07-30 | 2012-06-06 | 本田技研工業株式会社 | Drilling method and apparatus therefor |
| JP5518680B2 (en) * | 2010-11-17 | 2014-06-11 | 本田技研工業株式会社 | Drilling device |
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2019
- 2019-12-13 CN CN201911278538.8A patent/CN111014987B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870018A (en) * | 2010-05-31 | 2010-10-27 | 重庆红江机械有限责任公司 | Electrochemical machining method of fuel nozzle spray orifice inner orifice and adopted electrochemical fixture |
| CN103831644A (en) * | 2013-12-05 | 2014-06-04 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Special clamp for fuel spray nozzle spray hole electrosparking |
| CN204108528U (en) * | 2014-09-18 | 2015-01-21 | 中科中涵激光设备（福建）股份有限公司 | Be used in backstay and the positioner of Laser Processing atomizer |
| CN204108527U (en) * | 2014-09-18 | 2015-01-21 | 中科中涵激光设备（福建）股份有限公司 | A kind of backstay of Laser Processing atomizer and positioner |
| JP6432402B2 (en) * | 2015-03-17 | 2018-12-05 | 株式会社デンソー | Laser processing equipment |
| CN205478050U (en) * | 2016-03-13 | 2016-08-17 | 聊城科瑞汽车零部件有限公司 | Sprayer injector nozzle matching parts |
| CN206009890U (en) * | 2016-09-10 | 2017-03-15 | 无锡微研精微机械技术有限公司 | A kind of injection hole on injection nozzle processing tool axial direction double-claw type frock clamp |
| 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 |
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| Publication number | Publication date |
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| CN111014987A (en) | 2020-04-17 |
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Address after: 710119 No. 3300, wei26th Road, high tech Zone, Xi'an, Shaanxi Province Patentee after: Xi'an Zhongke Weijing Photon Technology Co.,Ltd. Address before: Room 301, No.32 Chuanghui Road, Zhangba Street office, high tech Zone, Xi'an, Shaanxi 710119 Patentee before: XI'AN MICROMACH TECHNOLOGY Co.,Ltd. |
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