CN205325134U - Instrument of processing is exempted from in hole auxiliary assembly of cylinder cap cover sprayer - Google Patents
Instrument of processing is exempted from in hole auxiliary assembly of cylinder cap cover sprayer Download PDFInfo
- Publication number
- CN205325134U CN205325134U CN201521054783.8U CN201521054783U CN205325134U CN 205325134 U CN205325134 U CN 205325134U CN 201521054783 U CN201521054783 U CN 201521054783U CN 205325134 U CN205325134 U CN 205325134U
- Authority
- CN
- China
- Prior art keywords
- oil injector
- cylinder head
- injector hole
- positioning section
- processing
- 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.)
- Expired - Fee Related
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses an instrument of processing is exempted from in hole auxiliary assembly of cylinder cap cover sprayer, including the setting element, the second sprayer hole coaxial fixed setting element of setting element for being used for making the first sprayer hole in the cylinder head and covering rather than the cylinder cap that corresponds from top to bottom. The utility model discloses an instrument of processing is exempted from in hole auxiliary assembly of cylinder cap cover sprayer can play the assistance -localization real -time effect in the assembling process of cylinder head and cylinder cap cover, make both reach higher assembly precision, and each part to complete the processing of alone before assembly not need not to implement the process in align reaming sprayer hole again, has reduced the processing cost.
Description
Technical field
This utility model relates to diesel engine assembling field, particularly relates to the auxiliary assembling of a kind of cylinder head cover oil injector hole and exempts from the instrument of processing。
Background technology
The oil injector hole of general diesel engine is to be collectively constituted by cylinder head and cylinder head cover, its processing technique is: first, in cylinder cap fuel injector hole and cylinder head cover oil injector hole semifinishing, other positions are fully completed polish, then need to be assemblied in cylinder head by cylinder head cover and carry out polish oil injector hole just to complete the polish of whole assembly。
At present, in the processing of the oil injector hole of similar diesel engine, each part needs reserved semifinishing surplus, carries out joining boring or align reaming processing after assembling again。And this method can not realize single part complete independently polish, if oil injector hole is not just assembling, also need reserved more surplus to be processed revising, increase processing cost。
Utility model content
The purpose of this utility model is to provide the auxiliary assembling of a kind of cylinder head cover oil injector hole and exempts from the instrument of processing, auxiliary positioning effect can be played in the cylinder head assembling process with cylinder head cover, both are made to reach higher assembly precision, each part can individually complete processing before not assembling, without implementing the operation of align reaming oil injector hole again, reduce processing cost。
For achieving the above object, this utility model provides the auxiliary assembling of a kind of cylinder head cover oil injector hole to exempt from the instrument of processing, including keeper, cylinder head is provided with the first oil injector hole, cylinder head cover is provided with the second oil injector hole, and described keeper is to make the first oil injector hole and the second oil injector hole co-axially fixed keeper corresponding up and down with it。
As further improvement of the utility model, described keeper is alignment pin, it includes positioning section and lower positioning section, the diameter of described upper positioning section is more than the diameter of lower positioning section, both junctions are stepped, and described upper positioning section and lower positioning section are shaft hole matching with described second oil injector hole and the first oil injector hole respectively。
Further improving as of the present utility model, the lower positioning section of described alignment pin is provided with tapering。
Further improving as of the present utility model, the ranging for of described tapering is not more than 1:30。
Further improve as of the present utility model, described alignment pin is provided with make it with the first oil injector hole or elastic construction that the second oil injector hole is axis hole interference fit。
Further improving as of the present utility model, described elastic construction is rubber ring。
Further improving as of the present utility model, the height that described rubber ring protrudes above from the sidewall of upper positioning section is for being not more than 2mm。
Beneficial effect
Compared with prior art, the instrument that the assembling of cylinder head cover oil injector hole of the present utility model auxiliary exempts to process has the advantage that
1, cylinder head is provided with the first oil injector hole, cylinder head cover is provided with the second oil injector hole, keeper can make the first oil injector hole and second oil injector hole corresponding up and down with it coaxially fix, so that follow-up, cylinder head and cylinder head cover are fixed, both are made after assembling, to reach higher assembly precision, and each part is not also just can individually completing to process before assembling, it is not necessary to implement the operation of align reaming oil injector hole again, reduce processing cost；
2, keeper is alignment pin, it includes positioning section and lower positioning section, upper positioning section and lower positioning section are shaft hole matching with the second oil injector hole and the first oil injector hole respectively, by alignment pin through the second oil injector hole and is stretched into the first oil injector hole, thus cylinder head and cylinder head cover are coaxially fixed, its simple in construction, good positioning effect；
3, the lower positioning section of alignment pin is provided with tapering, make lower positioning section wide at the top and narrow at the bottom, owing to cylinder head cover and cylinder head are aluminum material, under alignment pin, the tapering of positioning section can when alignment pin inserts or removes oil injector hole, make it easier to remove, and effectively prevent it from causing cut to destroy the precision of oil injector hole the sidewall of oil injector hole；
4, the tapering of alignment pin range for be not more than 1:100, the situation occurring that because tapering is excessive first oil injector hole and the second oil injector hole axiality reduce can be reduced；
5, upper positioning section is provided with the disconnecting prevention structure preventing alignment pin from coming off, it is possible to reduces alignment pin as far as possible and occurs displacement or situation about surprisingly deviating from from oil injector hole in position fixing process；
6, disconnecting prevention structure is rubber ring, rubber ring is arranged on the sidewall of positioning section and is Elastic Contact with the hole wall of the second oil injector hole, and then generation frictional force, thus reduce alignment pin displacement or situation about surprisingly deviating from from oil injector hole occur in position fixing process；
7, the height that rubber ring protrudes above from the sidewall of upper positioning section is for being not more than 2mm, in case the location pin card in oil injector hole is obtained too tight and is difficult to take out by it。
By description below and in conjunction with accompanying drawing, this utility model will become more fully apparent, and these accompanying drawings are used for explaining embodiment of the present utility model。
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings。
Fig. 1 is the assembling schematic three dimensional views of cylinder head of the present utility model and cylinder head cover；
Fig. 2 is locating pin structure enlarged diagram of the present utility model；
Fig. 3 is the top view of cylinder head of the present utility model and cylinder head cover assembling；
Fig. 4 is the broken section enlarged drawing in A direction in Fig. 3 of the present utility model。
In figure, 1, cylinder head；2, cylinder head cover；3, stud；4, alignment pin；5, nut；6, rubber ring；11, installation screw；12, the first oil injector hole；21, installing hole；22, the second oil injector hole；41, upper positioning section；42, lower positioning section。
Detailed description of the invention
With reference now to accompanying drawing, embodiment of the present utility model is described。
Embodiment 1
As shown in Figures 1 to 4, the instrument of processing is exempted from the auxiliary assembling of a kind of cylinder head cover oil injector hole to detailed description of the invention of the present utility model, including keeper；Cylinder head 1 is provided with the first oil injector hole 12, cylinder head cover 2 is provided with the second oil injector hole 22, keeper can make the first oil injector hole 12 and second oil injector hole 22 corresponding up and down with it coaxially fix, so that follow-up, cylinder head 1 and cylinder head cover 2 are positioned, both are made to reach higher assembly precision after mounting, and each part is not also just can individually completing to process before assembling, it is not necessary to implement the operation of align reaming oil injector hole again, reduce processing cost。
Keeper is alignment pin 4, and it includes positioning section 41 and lower positioning section 42, upper positioning section 41 and lower positioning section 42 is gap shaft hole matching with the second oil injector hole 22 and the first oil injector hole 12 respectively；Because the aperture of the second oil injector hole 22 is more than the aperture of the first oil injector hole 12, the outer diameter of above positioning section 41 more than the outer diameter of lower positioning section 42 so that both junctions are stepped；By alignment pin 4 through the second oil injector hole 22 and is stretched into the first oil injector hole 12, thus cylinder head 1 and cylinder head cover 2 coaxially being fixed, its simple in construction, good positioning effect。
The lower positioning section 42 of alignment pin 4 is provided with tapering, make lower positioning section 42 wide at the top and narrow at the bottom, owing to cylinder head cover 2 and cylinder head 1 are aluminum material, the tapering of the lower positioning section 42 of alignment pin 4 can when alignment pin 4 inserts or removes oil injector hole, make it easier to remove, and effectively prevent it from causing cut to destroy the precision of oil injector hole the sidewall of oil injector hole。
The ranging for of tapering is not more than 1:100, can reduce the situation occurring that because tapering is excessive first oil injector hole 12 and the second oil injector hole 22 axiality reduce。
Upper positioning section 41 is provided with the disconnecting prevention structure preventing alignment pin 4 from coming off, it is possible to reduces alignment pin 4 as far as possible and occurs displacement or situation about surprisingly deviating from from oil injector hole in position fixing process。
Disconnecting prevention structure is rubber ring 6；The outer wall of upper positioning section 41 is provided with annular groove, rubber ring 6 is arranged on the annular groove of positioning section 41 and is Elastic Contact with the hole wall of the second oil injector hole 22, and then generation frictional force, thus reduce alignment pin 4 displacement or situation about surprisingly deviating from from oil injector hole occur in position fixing process。
The height that rubber ring 6 protrudes above from the sidewall of upper positioning section 41 is for being not more than 2mm, in case it is by tight for alignment pin 4 Ka get Tai in oil injector hole and be difficult to take out。
This utility model is usable in the method that processing is exempted from the auxiliary assembling of cylinder head cover oil injector hole, and it comprises the following steps:
1, finishing step: by the second oil injector hole 22 on technology requirement polish cylinder head cover 2 and the first oil injector hole 12 in cylinder head 1；
2, stud installation steps: stud 3 is loaded in the installation screw 11 that cylinder head 1 is provided with and uses torque spanner to be tightened；
3, cylinder head cover installation step: the installing hole 21 being provided with by cylinder head cover 2 is directed at and is inserted in stud 3, makes cylinder head cover 2 be contained in cylinder head 1；
4, oil injector hole alignment steps: rap cylinder head cover 2 with rubber hammer, makes the second oil injector hole 22 on cylinder head cover 2 align with the first oil injector hole 12 in cylinder head 1；
5, oil injector hole positioning step: two alignment pins 4 are inserted respectively the first oil injector hole 12 being positioned at two ends and the second corresponding oil injector hole 22, so that the first oil injector hole 12 and the second oil injector hole 22 are coaxially fixed, because cylinder head 1 and cylinder head cover 2 all complete polish in a pre-installation, locating effect can be made better so carrying out coaxial location by the first oil injector hole 12 and the second oil injector hole 22, and without implementing the operation of align reaming oil injector hole again, processing cost is relatively low；Alignment pin 4 simple in construction, it is easy to manufacture；Using two alignment pins to position, it is not necessary to alignment pin 4 is all installed in all oil injector holes, while ensureing positioning precision, decreasing the quantity of alignment pin 4, thus reducing cost further；
6, fixing step in the middle part of cylinder head cover: on 2 studs 32 nuts 5 are installed to the middle part being positioned at cylinder head cover 2 by diagonal angle order, exposing from installing hole 21 and tighten, thus being fixed the middle part of the cylinder head 1 behind location and cylinder head cover 2；
7, keeper removes step: removed from the oil injector hole at cylinder head cover 2 two ends by two alignment pins 4, it is to avoid the nut 5 in cylinder head 1 and cylinder head cover 2 occurs after all tightening that alignment pin 4 is difficult to remove and the problem of scratch hole wall because of friction；
8, all the other nut installation steps: all the other nuts 5 are installed on the stud 3 exposed from installing hole 21, and tighten from the centre of cylinder head cover 2 to diagonal angle, two ends, thus effectively reducing nut 5 to tighten the gap produced between back cylinder cover cover and cylinder head because of deformation, assembly precision is higher。
Above in association with most preferred embodiment, this utility model is described, but this utility model is not limited to embodiment disclosed above, and should contain various carry out according to essence of the present utility model amendment, equivalent combinations。
Claims (7)
1. a cylinder head cover oil injector hole auxiliary assembles the instrument exempting from processing, including keeper, it is characterised in that: described keeper is be used for making the first oil injector hole (12) in cylinder head (1) and the second oil injector hole (22) the co-axially fixed keeper on the cylinder head cover (2) corresponding up and down with it。
2. the instrument of processing is exempted from the assembling of a kind of cylinder head cover oil injector hole according to claim 1 auxiliary, it is characterized in that, described keeper is alignment pin (4), it includes positioning section (41) and lower positioning section (42), the diameter of described upper positioning section (41) is more than the diameter of lower positioning section (42), both junctions are stepped, and described upper positioning section (41) and lower positioning section (42) are shaft hole matching with described second oil injector hole (22) and the first oil injector hole (12) respectively。
3. the instrument of processing is exempted from the assembling of a kind of cylinder head cover oil injector hole according to claim 2 auxiliary, it is characterised in that the lower positioning section (42) of described alignment pin (4) is provided with tapering。
4. the instrument of processing is exempted from the assembling of a kind of cylinder head cover oil injector hole according to claim 3 auxiliary, it is characterised in that the ranging for of described tapering is not more than 1:100。
5. the instrument of processing is exempted from a kind of cylinder head cover oil injector hole auxiliary assembling according to claim 2 to 4 any one, it is characterised in that described upper positioning section (41) is provided with the disconnecting prevention structure preventing alignment pin (4) from coming off。
6. the instrument of processing is exempted from the assembling of a kind of cylinder head cover oil injector hole according to claim 5 auxiliary, it is characterized in that, described disconnecting prevention structure is rubber ring (6), and described rubber ring (6) is arranged on the sidewall of positioning section (41) and is Elastic Contact with the hole wall of the second oil injector hole (22)。
7. the instrument of processing is exempted from the assembling of a kind of cylinder head cover oil injector hole according to claim 6 auxiliary, it is characterised in that the height that described rubber ring (6) protrudes above from the sidewall of upper positioning section (41) is for being not more than 2mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521054783.8U CN205325134U (en) | 2015-12-17 | 2015-12-17 | Instrument of processing is exempted from in hole auxiliary assembly of cylinder cap cover sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521054783.8U CN205325134U (en) | 2015-12-17 | 2015-12-17 | Instrument of processing is exempted from in hole auxiliary assembly of cylinder cap cover sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205325134U true CN205325134U (en) | 2016-06-22 |
Family
ID=56207683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521054783.8U Expired - Fee Related CN205325134U (en) | 2015-12-17 | 2015-12-17 | Instrument of processing is exempted from in hole auxiliary assembly of cylinder cap cover sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205325134U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364467A (en) * | 2015-12-17 | 2016-03-02 | 广西玉柴机器股份有限公司 | Oil atomizer hole assisted assembly machining-free tool and method for cylinder head cover |
-
2015
- 2015-12-17 CN CN201521054783.8U patent/CN205325134U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364467A (en) * | 2015-12-17 | 2016-03-02 | 广西玉柴机器股份有限公司 | Oil atomizer hole assisted assembly machining-free tool and method for cylinder head cover |
| CN105364467B (en) * | 2015-12-17 | 2017-05-17 | 广西玉柴机器股份有限公司 | Oil atomizer hole assisted assembly machining-free method for cylinder head cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20201217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |