CN110509208A - A kind of positioning tool for pintle nozzle match-ing parts positioning pin - Google Patents
A kind of positioning tool for pintle nozzle match-ing parts positioning pin Download PDFInfo
- Publication number
- CN110509208A CN110509208A CN201910852653.5A CN201910852653A CN110509208A CN 110509208 A CN110509208 A CN 110509208A CN 201910852653 A CN201910852653 A CN 201910852653A CN 110509208 A CN110509208 A CN 110509208A
- Authority
- CN
- China
- Prior art keywords
- injector body
- oil injector
- ing parts
- positioning pin
- pintle nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920001342 Bakelite® Polymers 0.000 claims description 3
- 239000004637 bakelite Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/24—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same mounting or demounting valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of positioning tools for pintle nozzle match-ing parts positioning pin, pintle nozzle match-ing parts positioning pin passes through the dowel hole of oil injector body nozzle side, and it is set in oil injector body, the positioning tool includes the apotting spindle for wearing the inside cavity of oil injector body, apotting spindle side is provided with the first end being bonded with the ingate of oil injector body, the other side is provided with the second end being bonded with the nozzle excircle orientation inner hole of oil injector body, it is additionally provided with a cylindrical portion being located above the dowel hole, the depth that pintle nozzle match-ing parts positioning pin is pierced by oil injector body inner wall is C, cylindrical portion diameter is D, the corresponding oil injector body diameter of bore in dowel hole position is B, and D=B-2C.The present invention solves the orientation problem of critical size and depth during components practical set.Using this positioning tool, not only positioning accuracy is higher and handling are simple and fast, overcomes the big problem of common position error, and production efficiency is greatly improved.
Description
Technical field
The present invention relates to the installation of diesel engine key part oil injector body positioning, and in particular to a kind of fixed for pintle nozzle match-ing parts
The positioning tool of position pin.
Background technique
Oil injector body is the important component in marine diesel engine fuel system, pintle nozzle match-ing parts, and nozzle etc. is all mounted on
On oil injector body, and pintle nozzle match-ing parts and nozzle directly determine the quality of atomization, guarantee the heat of burning improved and guarantee diesel engine
Efficiency etc..It is the key factor for influencing host operating condition, most important to the normal safe navigation of ship.
Oil injector body is the major part of fuel injector, and pintle nozzle match-ing parts and nozzle, which are mounted on the intracorporal relative position of fuel injector, to be had
It is very big on the influence of the overall performance of diesel fuel system if deviation, such as position inaccurate, it will cause nozzle spray angle not
Correctly, diesel engine can not be lighted and be run.As fuel-injected major part, the positioning of it and pintle nozzle match-ing parts and nozzle will be straight
Connect the operating condition for determining diesel engine.
Summary of the invention
The object of the present invention is to provide a kind of positioning tools for pintle nozzle match-ing parts positioning pin.By pintle nozzle match-ing parts positioning pin letter
It is single accurately and quickly to pass through oil injector body, solve emplacement depth and position error when pintle nozzle match-ing parts positioning pin is assembled with nozzle
Problem.
In order to achieve the above objectives, the present invention provides a kind of positioning tool for pintle nozzle match-ing parts positioning pin, pintle nozzle match-ing parts
Positioning pin passes through the dowel hole of oil injector body nozzle side, and is set in oil injector body, which includes wearing oil spout
The apotting spindle of the inside cavity of body, apotting spindle side are provided with the first end being bonded with the ingate of oil injector body,
The other side is provided with the second end being bonded with the nozzle excircle orientation inner hole of oil injector body, is additionally provided with one and is located at the positioning
Cylindrical portion above pin hole, the depth that pintle nozzle match-ing parts positioning pin is pierced by oil injector body inner wall is C, and cylindrical portion diameter is D, positioning pin
The corresponding oil injector body diameter of bore in hole site is B, and D=B-2C.
Wherein, concentricity≤0.002mm of first end, the second end and cylindrical portion, the first end peace of apotting spindle
Equipped with handle, and handle is provided with the external screw thread to match with the internal screw thread of first end, and the handle of handle is arranged to circular arc mistake
Shape is crossed, in order to hold, handle is bakelite handle, and pintle nozzle match-ing parts positioning pin and dowel hole have the magnitude of interference of 0.1mm or more,
So that can not be dismantled after the dowel hole of oil injector body.
With the invention, the orientation problem of critical size and depth during components practical set can solve.
Compared with the existing technology, the invention has the following advantages:
1, the present invention solves the orientation problem of critical size and depth during components practical set.
2, positioning accuracy of the present invention is higher and handling are simple and fast, overcomes the big problem of common position error, and substantially
Degree improves production efficiency.
3, this invention ensures that the positioning of diesel engine important spare part meets design requirement, the normal operation of diesel engine has been ensured
And the safety of ship operates normally.
4, what the present invention mainly took is the localization method on the basis of inner hole, in the part positioning using inner hole as benchmark
There is bigger promotional value and universal significance in terms of finger setting.
Detailed description of the invention
Fig. 1 is pintle nozzle match-ing parts locating pin structure schematic diagram provided by the invention；
Fig. 2 is oil injector body structural schematic diagram provided by the invention；
Fig. 3 is oil injector body provided by the invention, pintle nozzle match-ing parts positioning pin and positioning tool construction schematic diagram；
Fig. 4 is apotting spindle structural schematic diagram provided by the invention；
Fig. 5 is handle arrangement schematic diagram provided by the invention.
Specific embodiment
Below in conjunction with attached drawing, by specific embodiment, the invention will be further described, these embodiments are merely to illustrate
The present invention is not limiting the scope of the invention.
As shown in Figure 1, the present invention is a kind of positioning tool for pintle nozzle match-ing parts positioning pin 1.In Fig. 2, pintle nozzle match-ing parts are fixed
Position pin 1 passes through the dowel hole 3 of 2 side of nozzle of oil injector body 4, and is set in oil injector body 4.As shown in Figure 3 and Figure 4, should
Positioning tool includes the apotting spindle 11 for the inside cavity for wearing oil injector body 4, and 11 side of apotting spindle is provided with and fuel injector
First end 7 that the ingate 6 of body 4 is bonded, the other side is provided with to be bonded with the nozzle excircle orientation inner hole 2 of oil injector body 4
The second end 8, is additionally provided with a cylindrical portion 9 for being located at 3 top of dowel hole, and pintle nozzle match-ing parts positioning pin 1 is pierced by fuel injector
The depth of 4 inner wall of body is C, and 9 diameter of cylindrical portion is D, and corresponding 5 diameter of oil injector body inner hole in 3 position of dowel hole is B, and D=
B-2C。
Wherein, the outer circle of apotting spindle 11 is that a knife falls grinding, first end 7, the second end 8 and cylindrical portion 9 it is concentric
Degree≤0.002mm, it is ensured that the positioning accuracy of associated bore；As shown in figure 5, the first end 7 of apotting spindle 11 is equipped with hand
Handle 12, and handle 12 is provided with the external screw thread 14 to match with the internal screw thread 10 of first end 7, acts on to mitigate component and loading
Handle 12；The handle 13 of handle 12 is arranged to arc transition shape, in order to hold, can use when connecting with apotting spindle 11
Hand screws in the external screw thread 14 of handle 12 until plane is by putting down, and when pull-out holds handle 13 and extracts apotting spindle 11；Handle 12
It is bakelite handle；Pintle nozzle match-ing parts positioning pin 1 and dowel hole 3 have the magnitude of interference of 0.1mm or more, so that passing through oil injector body 4
Dowel hole 3 after can not dismantle, so must assure that C size to control the relative position of nozzle 2 and pintle nozzle match-ing parts.
As shown in Fig. 2, the tolerance of the ingate 6 of oil injector body 4 is+0.025mm, the corresponding oil spout in 3 position of dowel hole
The tolerance of body inner hole 5 is+0.05/+0.1mm；The tolerance that pintle nozzle match-ing parts positioning pin 1 is pierced by the depth C of 4 inner wall of oil injector body is
+0.1mm；Position length of the dowel hole 3 apart from nozzle 2 is K, and tolerance is ± 0.2mm；The public affairs of nozzle excircle orientation inner hole 2
Difference requires to be+0.05mm.First end 7, the second end 8 and the cylindrical portion 9 of apotting spindle 11 entrance with oil injector body 4 respectively
Hole 6, the contact of the oil injector body inner hole 5 corresponding with 3 position of dowel hole of nozzle excircle orientation inner hole 2；The first of apotting spindle 11
The diameter of end 7 is F, and the diameter of the second end 8 is G, and the diameter of the ingate 6 of oil injector body 4 is A, the nozzle of oil injector body 4
The diameter of excircle orientation inner hole 2 is E, the small 0.01-0.02mm of size F and G ratio A and E；The ingate 6 of oil injector body 4, jet hole 2
Oil injector body inner hole 5 corresponding with 3 position of dowel hole falls for a knife and bores, jerk value≤0.03mm.
As shown in figure 3, first fill in apotting spindle 11 in oil injector body 4 in position fixing process, positioning oil injector body 4
Ingate 6, the oil injector body inner hole 5 corresponding with 3 position of dowel hole of jet hole 2 position after, pintle nozzle match-ing parts positioning pin 1 is worn
Enter in the dowel hole 3 of oil injector body 4, when cylindrical portion 9 of the apotting spindle 11 above dowel hole 3 is encountered in loading, stress
It can not continue to be packed into, that is, can be sized the relative position of C in place.Guarantee that pintle nozzle match-ing parts and nozzle 2 are mounted on oil injector body 4
Interior relative position zero deflection, diesel engine being capable of normal ignition and operations.
The working principle of the invention:
Apotting spindle 11 is filled in oil injector body 4, and the first end 7 of apotting spindle 11 and the ingate 6 of oil injector body 4 are pasted
It closes, the second end 8 is bonded with the nozzle excircle orientation inner hole 2 of oil injector body 4, then the cylindrical portion 9 of apotting spindle 11 positions just
At the corresponding oil injector body inner hole 5 in 3 position of dowel hole, pintle nozzle match-ing parts positioning pin 1 is penetrated to the dowel hole of oil injector body 4
In 3,9 stress of cylindrical portion for encountering apotting spindle 11 can not continue to be packed into, that is, can determine the opposite position of pintle nozzle match-ing parts positioning pin 1
It sets.
In conclusion a kind of positioning tool for pintle nozzle match-ing parts positioning pin of the present invention, solves components practical set
The orientation problem of critical size and depth in the process, not only positioning accuracy is higher and handling are simple and fast, overcomes common positioning
The big problem of error, and production efficiency is greatly improved.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (7)
1. a kind of positioning tool for pintle nozzle match-ing parts positioning pin, which passes through determining for oil injector body nozzle side
Position pin hole, and is set in oil injector body, which is characterized in that the positioning tool includes:
Apotting spindle wears the inside cavity of oil injector body；
The apotting spindle side is provided with first end, which is bonded with the ingate of oil injector body；
The apotting spindle other side is provided with the second end, the nozzle excircle orientation inner hole patch of the second end and oil injector body
It closes；
The apotting spindle is additionally provided with a cylindrical portion, which is located above dowel hole；
The depth that the pintle nozzle match-ing parts positioning pin is pierced by the oil injector body inner wall is C, and the cylindrical portion diameter is D, described fixed
The corresponding oil injector body diameter of bore in position pin hole position is B, and D=B-2C.
2. being used for the positioning tool of pintle nozzle match-ing parts positioning pin as described in claim 1, which is characterized in that the first end,
Concentricity≤0.002mm of the second end and the cylindrical portion.
3. being used for the positioning tool of pintle nozzle match-ing parts positioning pin as described in claim 1, which is characterized in that the apotting spindle
First end is equipped with handle.
4. being used for the positioning tool of pintle nozzle match-ing parts positioning pin as claimed in claim 3, which is characterized in that the handle is provided with
External screw thread matches with the internal screw thread of the first end.
5. being used for the positioning tool of pintle nozzle match-ing parts positioning pin as claimed in claim 4, which is characterized in that the handle of the handle
It is arranged to arc transition shape, in order to hold.
6. being used for the positioning tool of pintle nozzle match-ing parts positioning pin as claimed in claim 5, which is characterized in that the handle is bakelite
Handle.
7. being used for the positioning tool of pintle nozzle match-ing parts positioning pin as described in claim 1, which is characterized in that the pintle nozzle match-ing parts are fixed
Position pin has the magnitude of interference of 0.1mm or more with the dowel hole, so that can not dismantle after the dowel hole of oil injector body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910852653.5A CN110509208A (en) | 2019-09-10 | 2019-09-10 | A kind of positioning tool for pintle nozzle match-ing parts positioning pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910852653.5A CN110509208A (en) | 2019-09-10 | 2019-09-10 | A kind of positioning tool for pintle nozzle match-ing parts positioning pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110509208A true CN110509208A (en) | 2019-11-29 |
Family
ID=68632023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910852653.5A Pending CN110509208A (en) | 2019-09-10 | 2019-09-10 | A kind of positioning tool for pintle nozzle match-ing parts positioning pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110509208A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB616038A (en) * | 1946-08-21 | 1949-01-14 | Jermyn & Pointer Ltd | Improvements in or relating to expanding mandrels |
| GB901514A (en) * | 1960-02-10 | 1962-07-18 | Neue Argus Gmbh | Tool for screwing a nipple into a socket surrounding a hose end |
| US4021916A (en) * | 1975-08-20 | 1977-05-10 | Robert Spalten | Dental dowel pin positioner |
| JP2002283167A (en) * | 2001-03-26 | 2002-10-03 | Komatsu Ltd | Centering and positioning device |
| CN203293018U (en) * | 2013-05-31 | 2013-11-20 | 上海沪东造船油嘴油泵有限公司 | Oil atomizer needle valve body external grinding locating tool |
| CN104209706A (en) * | 2014-08-22 | 2014-12-17 | 宝鸡石油机械有限责任公司 | Manufacture method of multi-baffle large-aperture box frame |
| CN205614366U (en) * | 2016-02-26 | 2016-10-05 | 龙工（上海）精工液压有限公司 | Plunger pump pump body merry go round machine anchor clamps |
| CN107598830A (en) * | 2017-10-31 | 2018-01-19 | 广西玉柴机器股份有限公司 | The method and device of O-ring seal in a kind of mounting hole |
| CN207205947U (en) * | 2017-09-04 | 2018-04-10 | 武汉共康汽车零部件有限公司 | Three pin shaft fork positioning core axles |
| CN208042956U (en) * | 2018-04-13 | 2018-11-02 | 襄阳福达东康曲轴有限公司 | Cubing for detecting cylinder body main oil gallery blanking cover depth |
| CN210452486U (en) * | 2019-09-10 | 2020-05-05 | 上海沪东造船油嘴油泵有限公司 | Positioning tool for needle valve matching part positioning pin |
-
2019
- 2019-09-10 CN CN201910852653.5A patent/CN110509208A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB616038A (en) * | 1946-08-21 | 1949-01-14 | Jermyn & Pointer Ltd | Improvements in or relating to expanding mandrels |
| GB901514A (en) * | 1960-02-10 | 1962-07-18 | Neue Argus Gmbh | Tool for screwing a nipple into a socket surrounding a hose end |
| US4021916A (en) * | 1975-08-20 | 1977-05-10 | Robert Spalten | Dental dowel pin positioner |
| JP2002283167A (en) * | 2001-03-26 | 2002-10-03 | Komatsu Ltd | Centering and positioning device |
| CN203293018U (en) * | 2013-05-31 | 2013-11-20 | 上海沪东造船油嘴油泵有限公司 | Oil atomizer needle valve body external grinding locating tool |
| CN104209706A (en) * | 2014-08-22 | 2014-12-17 | 宝鸡石油机械有限责任公司 | Manufacture method of multi-baffle large-aperture box frame |
| CN205614366U (en) * | 2016-02-26 | 2016-10-05 | 龙工（上海）精工液压有限公司 | Plunger pump pump body merry go round machine anchor clamps |
| CN207205947U (en) * | 2017-09-04 | 2018-04-10 | 武汉共康汽车零部件有限公司 | Three pin shaft fork positioning core axles |
| CN107598830A (en) * | 2017-10-31 | 2018-01-19 | 广西玉柴机器股份有限公司 | The method and device of O-ring seal in a kind of mounting hole |
| CN208042956U (en) * | 2018-04-13 | 2018-11-02 | 襄阳福达东康曲轴有限公司 | Cubing for detecting cylinder body main oil gallery blanking cover depth |
| CN210452486U (en) * | 2019-09-10 | 2020-05-05 | 上海沪东造船油嘴油泵有限公司 | Positioning tool for needle valve matching part positioning pin |
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