CN105953709B - Automobile engine cylinder head valve guide bushing coaxiality check fixture and its detection method - Google Patents
Automobile engine cylinder head valve guide bushing coaxiality check fixture and its detection method Download PDFInfo
- Publication number
- CN105953709B CN105953709B CN201610475256.7A CN201610475256A CN105953709B CN 105953709 B CN105953709 B CN 105953709B CN 201610475256 A CN201610475256 A CN 201610475256A CN 105953709 B CN105953709 B CN 105953709B
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- Prior art keywords
- valve guide
- test section
- engine cylinder
- detection
- guide bushing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/003—Measuring of motor parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Automatic Assembly (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Testing Of Engines (AREA)
Abstract
The invention discloses a kind of automobile engine cylinder head valve guide bushing coaxiality check fixture, including for being inserted into valve guide bushing the first test section and and the first test section connection and for detect the second test section between preset reference that engine cylinder covers with the presence or absence of deviation.Automobile engine cylinder head valve guide bushing coaxiality check fixture of the invention, structure is simple, it is easy to operate, it need to be only inserted into valve guide bushing when detection every time, if the concentricity of the valve guide hole on valve guide bushing and cylinder cap does not meet tolerance, which can quickly and easily be detected, relative to traditional detection method, not only detection accuracy is high, but also detection efficiency is also high.The present invention also provides a kind of detection methods of automobile engine cylinder head valve guide bushing concentricity.
Description
Technical field
The invention belongs to cubing technical fields, specifically, the present invention relates to a kind of automobile engine cylinder head valve guide bushings
Coaxiality check fixture and its detection method.
Background technique
Valve guide bushing is very important part in automobile engine cylinder head, its processing precision direct influence to engine
Working performance and efficiency.If valve guide bushing position deviation occurs in processing or installation, in addition to nocuousness will be will lead to
Heat transfer and guide hole wear quickly outer, also will cause the increase of fuel consumption.Therefore, to the machining accuracy of valve guide hole one
As require very high, especially define very tight tolerance to the concentricity of valve guide hole and conduit outer wall, and this is coaxial
The detection of degree is just particularly important.
Since automobile engine cylinder head valve guide hole is usually to tilt certain angle, this angle is coaxially spent in detection
It has any problem in journey, and the application condition of traditional detection method detection is big, keeps actual erroneous detection situation relatively more, detects simultaneously
Efficiency is not also high.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention provides a kind of vapour
Car engine cylinder cap air valve catheter coaxiality check fixture and its detection method, it is therefore an objective to improve the accuracy of detection efficiency and detection.
To achieve the goals above, the technical scheme adopted by the invention is as follows: automobile engine cylinder head valve guide bushing concentricity
Cubing is connect and for detection and engine cylinder including the first test section for being inserted into valve guide bushing and with the first test section
It whether there is the second test section of deviation between the preset reference covered.
First test section includes detection bar, and the diameter of detection bar and the center-hole diameter of valve guide bushing are equal in magnitude.
First test section further includes the reinforcing rod connecting with the detection bar and second test section.
The reinforcing rod is coaxially connected with the detection bar.
The diameter of the reinforcing rod is greater than the diameter of the detection bar.
The length of the detection bar is greater than the length of the reinforcing rod.
Second test section has the valve retainer connecting with first test section and for covering with engine cylinder
The bearing surface of contact and for detecting the detection faces that whether there is deviation between preset reference that engine cylinder covers, presets base
Standard is the surface having between the axis of valve guide bushing less than 90 degree of angles that engine cylinder covers.
The detection faces are the circular conical surface coaxial with the detection bar, and the bearing surface is flat with the coaxial circle of detection faces
Face.
Second test section is conical structure, and the detection faces are the second test section end surface, the bearing surface
For another end surfaces of the second test section.
The present invention also provides a kind of automobile engine cylinder head valve guide bushing coaxiality detecting method, using above-mentioned cubing,
When detection, the first test section of cubing is inserted into the centre bore of valve guide bushing, and make the second test section and engine cylinder cover
On valve retainer contact, finally by between the second test section of observation and the preset reference that covers of engine cylinder with the presence or absence of inclined
Difference, judges whether the concentricity of valve guide bushing and valve guide hole meets the requirements.
Automobile engine cylinder head valve guide bushing coaxiality check fixture of the invention, structure is simple, easy to operate, every time when detection
It need to only be inserted into valve guide bushing, if the concentricity of valve guide bushing and the valve guide hole on cylinder cap does not meet tolerance and wants
It asks, which can quickly and easily detected, and relative to traditional detection method, not only detection accuracy is high, Er Qiejian
It is also high to survey efficiency；In addition, the detection method process using this cubing is simple, and it is easy to operate efficient, make the employee for detecting the product
Even more without training the operation that can be on duty, and detection efficiency is high.
Detailed description of the invention
This specification includes the following drawings, and shown content is respectively:
Fig. 1 is the structural schematic diagram of cubing of the present invention；
Fig. 2 is the usage state diagram of cubing of the present invention；
In the figure, it is marked as
1, valve retainer；2, cubing；201, detection bar；202, reinforcing rod；203, the second test section；204, detection faces；
205, bearing surface；206, hole is plugged；3, valve guide bushing；4, engine cylinder cover；5, preset reference.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to a specific embodiment of the invention further details of
Explanation, it is therefore an objective to those skilled in the art be helped to have more complete, accurate and deep reason to design of the invention, technical solution
Solution, and facilitate its implementation.
As depicted in figs. 1 and 2, the present invention provides a kind of automobile engine cylinder head valve guide bushing coaxiality check fixtures, including
The first test section for being inserted into valve guide bushing 3 and connect with the first test section and for detect covered with engine cylinder it is pre-
If whether there is the second test section 203 of deviation between benchmark 5.
Specifically, as depicted in figs. 1 and 2, valve guide bushing 3 is to be mounted in the valve guide hole of engine cylinder cover and be
The round tube of both ends open, inner hollow, the first test section include the detection bar 201 for being inserted into the centre bore of valve guide bushing,
Detection bar 201 is long round bar, and the diameter of detection bar 201 and the center-hole diameter of valve guide bushing are equal in magnitude.
Preferably, as shown in Figure 1, the first test section further includes connecting with detection bar 201 and the second test section 203
One end of reinforcing rod 202, reinforcing rod 202 is fixedly connected with detection bar 201, and the other end is fixedly connected with the second test section 203.Add
Strong bar 202 plays a part of to reinforce cubing rigidity, and reinforcing rod 202 is also round bar, and reinforcing rod 202 is coaxial fixed with detection bar 201
Connection, the diameter of reinforcing rod 202 and the diameter for being greater than detection bar 201, the length of detection bar 201 are greater than the length of reinforcing rod 202.
Preferably, as shown in Figure 1, the second test section 203 is the cone of umbrella, the second detection of conical structure
Portion 203 has the bearing surface 205 for connecting with the first test section and being used to contact with the valve retainer 1 that engine cylinder covers and is used for
It whether there is the detection faces 204 of deviation between the preset reference 5 that detection and engine cylinder cover.As shown in Fig. 2, valve guide hole
To be obliquely installed inside engine cylinder cover, the axis of valve guide hole intersects with the bottom surface of engine cylinder cover and has between the two
There is the angle less than 90 degree, preset reference 5 has between the axis of valve guide hole less than 90 degree for what engine cylinder covered
The surface of angle, therefore can choose the bottom surface of engine cylinder cover as preset reference 5, the bottom surface of engine cylinder cover are and cylinder cap
With cylinder body install when and cylinder body top surface pinch seal liner plane.
As shown in Figure 1, detection faces 204 are the end surface of the second test section 203, bearing surface 205 is the second test section 203
Another end surfaces, detection faces 204 be the circular conical surface coaxial with the first test section, bearing surface 205 be with detection faces 204 it is coaxial
Disk.Detection faces 204 and bearing surface 205 and the reinforcing rod 202 and detection bar 201 of the first test section are coaxial, and bearing surface 205
It is fixedly connected with reinforcing rod 202, bearing surface 205 and reinforcing rod 202 are between detection faces 204 and detection bar 201.Second detection
In portion 203, the end at 204 place of detection faces is the structure protruded towards outside, the overall diameter of detection faces 204 relative to the other end
Equal in magnitude with the overall diameter of bearing surface 205, the vertical range between the center of circle of detection faces 204 and the center of circle of bearing surface 205 is big
Vertical range between the edge of detection faces 204 and the edge of bearing surface 205.The buses of detection faces 204 and bearing surface 205 it
Between angle and valve guide bushing and valve guide hole the satisfactory engine cylinder of the concentricity valve guide hole and hair that cover
The sum of angle between the bottom surface of motivation cylinder cap is equal to 90 degree.When detecting, it is covered by observation detection faces 204 with engine cylinder
Preset reference 5 between whether there is deviation, judge whether the concentricity of valve guide bushing and valve guide hole meets the requirements.
Preferably, plug hole 206 is second as shown in Figure 1, the second test section 203 is equipped with a plug hole 206
Start to extend to the threaded hole inside reinforcing rod along axial direction at the center of the detection faces of test section, which is to use
In allowing screw rod to be inserted into, convenient for detection after testing staff cubing is extracted from valve guide bushing by screw rod.
The present invention also provides a kind of automobile engine cylinder head valve guide bushing coaxiality detecting methods, using the above structure
Engine cylinder cover when detection, is horizontally arranged by cubing first, and makes the bottom surface of engine cylinder cover upward, then by the of cubing
The detection bar 201 of one test section is inserted into the centre bore of valve guide bushing after passing through the valve retainer 1 that engine cylinder covers, until
The bearing surface 205 of second test section 203 is contacted with the valve retainer 1 that engine cylinder covers, finally by observation detection faces 204 with
Whether there is deviation between the preset reference 5 that engine cylinder covers, judge valve guide bushing and valve guide hole concentricity whether
It meets the requirements.
As shown in Fig. 2, cubing is inclined, and engine cylinder cover is horizontal positioned after in cubing insertion valve guide bushing.
When between the preset reference 5 that observation detection faces 204 and engine cylinder cover with the presence or absence of deviation, if having mother in detection faces 204
Line is in a horizontal state and the bottom surface of the bus and engine cylinder cover is in same plane, the bus in detection faces 204 and default base
Standard 5 is just overlapped, then the concentricity of valve guide bushing and valve guide hole meets tolerance.If there is no bus in detection faces 204
It can be overlapped with preset reference 5, then it represents that the concentricity of valve and valve guide hole does not meet tolerance.
The present invention is exemplarily described in conjunction with attached drawing above.Obviously, present invention specific implementation is not by above-mentioned side
The limitation of formula.As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out；Or not
It is improved, above-mentioned conception and technical scheme of the invention are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (6)
1. automobile engine cylinder head valve guide bushing coaxiality check fixture, it is characterised in that: including for being inserted into valve guide bushing
One test section and and the connection of the first test section and it whether there is deviation between preset reference that engine cylinder covers for detect
The second test section；
First test section includes detection bar for being inserted into the centre bore of valve guide bushing and is coaxially connected with detection bar
Reinforcing rod, the diameter of detection bar and the center-hole diameter of valve guide bushing are equal in magnitude；The diameter of reinforcing rod is greater than detection bar
One end of diameter, reinforcing rod is fixedly connected with detection bar, and the other end is fixedly connected with the second test section；
Second test section has the branch for connecting with the first test section and being used to contact with the valve retainer that engine cylinder covers
Bearing surface and for detecting the detection faces that whether there is deviation between preset reference that engine cylinder covers, preset reference is to start
The surface having between the axis of valve guide bushing less than 90 degree of angles on machine cylinder cap；
Second test section is equipped with a plug hole for allowing screw rod to be inserted into, and plug hole is the detection faces of the second test section
Center at start to extend to the threaded hole inside reinforcing rod along axial direction；
Detection faces are the circular conical surface coaxial with detection bar, and bearing surface is the disk coaxial with detection faces；
When detecting, with the presence or absence of deviation between the preset reference covered by observation detection faces and engine cylinder, judge valve
Whether the concentricity of conduit and valve guide hole meets the requirements；If have in detection faces bus be in a horizontal state and the bus with start
The bottom surface of machine cylinder cap is in same plane, and the bus in detection faces is just overlapped with preset reference, then valve guide bushing is led with valve
The concentricity of pore meets tolerance.
2. automobile engine cylinder head valve guide bushing coaxiality check fixture according to claim 1, it is characterised in that: the detection
The length of bar is greater than the length of the reinforcing rod.
3. automobile engine cylinder head valve guide bushing coaxiality check fixture according to claim 1, it is characterised in that: described second
Test section is conical structure, and the detection faces are the second test section end surface, and the bearing surface is the another of the second test section
End surface.
4. automobile engine cylinder head valve guide bushing coaxiality check fixture according to claim 3, it is characterised in that: the detection
The overall diameter in face and the overall diameter of bearing surface are equal in magnitude.
5. automobile engine cylinder head valve guide bushing coaxiality check fixture according to claim 3 or 4, it is characterised in that: described
Vertical range between the center of circle of detection faces and the center of circle of bearing surface is greater than between the edge of detection faces and the edge of bearing surface
Vertical range.
6. car engine cylinder cap air valve catheter coaxiality detecting method, it is characterised in that: any described using claim 1 to 5
Cubing, when detection, the first test section of cubing is inserted into the centre bore of valve guide bushing, and make the second test section and start
Valve retainer contact on machine cylinder cap, finally by between the second test section of observation and the preset reference that covers of engine cylinder whether
There are deviations, judge whether the concentricity of valve guide bushing and valve guide hole meets the requirements；
If having in detection faces, bus is in a horizontal state and the bottom surface of the bus and engine cylinder cover is in same plane, in detection faces
Bus be just overlapped with preset reference, then the concentricity of valve guide bushing and valve guide hole meets tolerance；If detection faces
Upper no bus can be overlapped with preset reference, then it represents that the concentricity of valve and valve guide hole does not meet tolerance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610475256.7A CN105953709B (en) | 2016-06-25 | 2016-06-25 | Automobile engine cylinder head valve guide bushing coaxiality check fixture and its detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610475256.7A CN105953709B (en) | 2016-06-25 | 2016-06-25 | Automobile engine cylinder head valve guide bushing coaxiality check fixture and its detection method |
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| Publication Number | Publication Date |
|---|---|
| CN105953709A CN105953709A (en) | 2016-09-21 |
| CN105953709B true CN105953709B (en) | 2019-03-05 |
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| CN201610475256.7A Active CN105953709B (en) | 2016-06-25 | 2016-06-25 | Automobile engine cylinder head valve guide bushing coaxiality check fixture and its detection method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107009303B (en) * | 2017-05-23 | 2019-03-29 | 核工业理化工程研究院 | Concentricity adjusting device |
| CN110530245A (en) * | 2019-09-19 | 2019-12-03 | 广西玉柴机器股份有限公司 | A kind of cylinder cover guide pipe internal-external circle concentricity cubing and detection method |
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|---|---|---|---|---|
| US4030201A (en) * | 1973-04-19 | 1977-06-21 | Finike Italiana Marposs-Soc. In Accomandita Semplice Di Mario Possati & C. | Method and relevant apparatus for detecting the geometrical features of mechanical workpieces, in particular for measuring the eccentricity and out-of-roundness |
| CN203083485U (en) * | 2013-01-18 | 2013-07-24 | 重庆文达机械制造有限公司 | Cylinder cover valve sinking depth gauge |
| CN203132488U (en) * | 2013-03-09 | 2013-08-14 | 芜湖永裕汽车工业有限公司 | Coaxiality detection device for glow plug hole in cylinder cover of engine |
| CN203132489U (en) * | 2013-03-09 | 2013-08-14 | 芜湖永裕汽车工业有限公司 | Concentricity detection device for oil sealing hole and camshaft holes in cylinder cover of engine |
| CN203550850U (en) * | 2013-11-06 | 2014-04-16 | 浙江吉奥动力机械有限公司 | Air valve deflection detecting tool |
| CN204301665U (en) * | 2014-11-07 | 2015-04-29 | 奇瑞汽车股份有限公司 | Axiality detection device |
| CN205245963U (en) * | 2015-12-15 | 2016-05-18 | 重庆飞康机械有限公司 | Engine cylinder cage circle, pipe hole are synthesized and are examined utensil |
| CN205843581U (en) * | 2016-06-25 | 2016-12-28 | 安徽工程大学机电学院 | Automobile engine cylinder head valve guide bushing coaxiality check fixture |
-
2016
- 2016-06-25 CN CN201610475256.7A patent/CN105953709B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4030201A (en) * | 1973-04-19 | 1977-06-21 | Finike Italiana Marposs-Soc. In Accomandita Semplice Di Mario Possati & C. | Method and relevant apparatus for detecting the geometrical features of mechanical workpieces, in particular for measuring the eccentricity and out-of-roundness |
| CN203083485U (en) * | 2013-01-18 | 2013-07-24 | 重庆文达机械制造有限公司 | Cylinder cover valve sinking depth gauge |
| CN203132488U (en) * | 2013-03-09 | 2013-08-14 | 芜湖永裕汽车工业有限公司 | Coaxiality detection device for glow plug hole in cylinder cover of engine |
| CN203132489U (en) * | 2013-03-09 | 2013-08-14 | 芜湖永裕汽车工业有限公司 | Concentricity detection device for oil sealing hole and camshaft holes in cylinder cover of engine |
| CN203550850U (en) * | 2013-11-06 | 2014-04-16 | 浙江吉奥动力机械有限公司 | Air valve deflection detecting tool |
| CN204301665U (en) * | 2014-11-07 | 2015-04-29 | 奇瑞汽车股份有限公司 | Axiality detection device |
| CN205245963U (en) * | 2015-12-15 | 2016-05-18 | 重庆飞康机械有限公司 | Engine cylinder cage circle, pipe hole are synthesized and are examined utensil |
| CN205843581U (en) * | 2016-06-25 | 2016-12-28 | 安徽工程大学机电学院 | Automobile engine cylinder head valve guide bushing coaxiality check fixture |
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| CN105953709A (en) | 2016-09-21 |
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