CN107726956A - Engine cylinder cap valve guide hole and the detection method of camshaft hole distance - Google Patents

Engine cylinder cap valve guide hole and the detection method of camshaft hole distance Download PDF

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Publication number
CN107726956A
CN107726956A CN201710863841.9A CN201710863841A CN107726956A CN 107726956 A CN107726956 A CN 107726956A CN 201710863841 A CN201710863841 A CN 201710863841A CN 107726956 A CN107726956 A CN 107726956A
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CN
China
Prior art keywords
measurement
cubing
hole
valve guide
mandrel
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Granted
Application number
CN201710863841.9A
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Chinese (zh)
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CN107726956B (en
Inventor
韦建民
肖丁
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LIUZHOU WULINGLIU POWER CO Ltd
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LIUZHOU WULINGLIU POWER CO Ltd
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Priority to CN201710863841.9A priority Critical patent/CN107726956B/en
Publication of CN107726956A publication Critical patent/CN107726956A/en
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Publication of CN107726956B publication Critical patent/CN107726956B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/14Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/003Measuring of motor parts

Abstract

Inventive engine cylinder cover valve guide pipe hole and the detection method of camshaft hole distance, are related to a kind of detection method, comprise the following steps:(One)Measurement cubing is made, it is equal with the aperture of camshaft hole that measurement cubing includes positioning base, measurement mandrel, go side cubing and not-go-end cubing, the external diameter for measuring mandrel;(Two)Cylinder head is positioned on positioning base, and measurement mandrel is positioned in each camshaft hole;(Three)The distance at mandrel edge is extremely measured with the detection of go side cubing and not-go-end cubing detection valve guide hole.The inventive method can accurately detect whether engine cylinder cap valve guide bushing and camshaft hole distance meet the requirements, this method is simple to operate, quick and precisely, it is practical and convenient.

Description

Engine cylinder cap valve guide hole and the detection method of camshaft hole distance
Technical field
The present invention relates to a kind of detection method, more particularly to a kind of engine cylinder cap valve guide hole and camshaft hole away from From detection method.
Background technology
Engine cylinder cap is the important spare part on automobile, engine cylinder cap valve guide hole and camshaft hole center Carpenters square cun is the critical size of cylinder head, once it is overproof, the assembling of cylinder head and the performance of engine certainly will be influenceed.In Fig. 1, It is a kind of minicar engine cylinder head, cylinder cover valve guide pipe hole and camshaft hole centre-to-centre spacing 39.5 ± 0.05 are gas in figure The critical size of cylinder cap, it has to be ensured that, because being bulk, it can not be detected using conventional method in production process.If Detected with three coordinates, not only efficiency is low, inspects limited sample size by random samples, and Expenses of laboratory examination is high.
The content of the invention
The purpose of the present invention is in view of the above-mentioned drawbacks of the prior art, providing a kind of engine cylinder cap valve guide bushing Hole and the detection method of camshaft hole distance, can accurately detect engine cylinder cap valve guide bushing and camshaft hole distance is It is no to meet the requirements, this method is simple to operate, quick and precisely, it is practical and convenient.
The technical scheme that uses to achieve the above object of the present invention is:A kind of engine cylinder cap valve guide hole and cam The detection method of axis hole distance, comprises the following steps:(1) measurement cubing is made, measurement cubing includes positioning base, the measurement heart Axle, go side cubing and not-go-end cubing, it is equal with the aperture of camshaft hole to measure the external diameter of mandrel, go side cubing and not-go-end cubing point Card body, locating shaft, measurement axle Bao Kuo not be measured, measurement card body is provided with two axis holes be arrangeding in parallel, locating shaft and measurement axle It is respectively positioned in two axis holes of measurement card body, locating shaft and measures the axle external diameter of the axle lower end internal diameter with valve guide bushing respectively Equal, the distance between valve guide hole and camshaft hole are A0, it is A to measure the distance between two axis holes on card body1, valve The radius of guide hole is A2, the radius for measuring mandrel is A3, A1=A0+A2+A3, A1、A0、A2、A3Form a dimension chain, go side The distance between cubing measurement two axis holes of card body are equal to A1Maximum limit of size, not-go-end cubing measurement card body two axis holes it Between distance be equal to A1The minimum limit of size;(2) cylinder head is positioned on positioning base, and measurement mandrel is passed through together All camshaft holes that one cylinder covers, and be positioned in each camshaft hole;(3) detected with go side cubing, by go side The locating shaft of cubing is positioned in a valve guide hole, and the measurement card body of go side cubing is perpendicularly across in measurement mandrel Side, whether can pass through measurement mandrel edge, can pass through and then be of the required size, otherwise chi if observing the measurement axle of go side cubing It is very little undesirable, according to said method with all valve guide holes in go side cubing detection cylinder head;(4) detected with not-go-end cubing, The locating shaft of not-go-end cubing is positioned in a valve guide hole, the measurement card body of not-go-end cubing is perpendicularly across the measurement heart Whether on the upside of axle, measurement mandrel edge can be passed through by observing the measurement axle of not-go-end cubing, it is not possible to through being then of the required size, Otherwise size is undesirable, has according to said method detected all valve guide holes in cylinder head with not-go-end cubing.
The present invention further technical scheme be:Being provided with the positioning base of the measurement cubing can positioning cylinder lid The cylindrical positioning pins and diamond positioning pin in face, when cylinder head is positioned on positioning base in step (2), make cylinder head bottom The mounting-positioning holes in face are engaged with cylindrical positioning pins and diamond positioning pin respectively.
The present invention further technical scheme be:The positioning base upper surface end positions of the measurement cubing are also associated with A pair of bearings being oppositely arranged, bearing positioning hole is respectively equipped with two bearings, measurement mandrel is passed through into cam in step (2) During axis hole, the both ends for measuring mandrel are respectively positioned in the bearing positioning hole of two bearings.
The present invention further technical scheme be:The locating shaft include be arranged on measurement card body axis hole in main part I, One section, which is extended with, by the upper end of main part I is arranged in the prominent part of positioning boss I, by positioning with externally threaded fixed part I, the lower end of main part I The lower end of boss I extends to form location division, and the external diameter of location division is identical with the aperture of valve guide hole.
The present invention further technical scheme be:The measurement axle includes the main part being arranged in measurement card body axis hole IIth, by the upper end of main part II be extended with one section with externally threaded fixed part II, the lower end of main part II be arranged in the prominent part of positioning boss II, Extended by the lower end of positioning boss II and form measurement portion, the external diameter of measurement portion is identical with the aperture of valve guide hole.
Inventive engine cylinder cover valve guide pipe hole and the detection method of camshaft hole distance have the advantages that: The inventive method cylinder cover valve guide pipe hole as requested designs a set of go side cubing with camshaft hole distance and not-go-end is examined Tool, detect whether cylinder cover valve guide pipe hole meets the requirements with camshaft hole distance using go side cubing and not-go-end cubing so that Bulk between cylinder cover valve guide pipe hole and camshaft hole can be quickly completion measurement, make cylinder head detection tended to It is kind, control cylinder head and enter factory's quality, while on the premise of applicability and accuracy is ensured, the measurement of the inventive method use Cubing is cheap, easy to use, maintenance is simple, and checkability is high, and testing cost is greatly reduced.
With reference to the accompanying drawings and examples to the inspection of inventive engine cylinder cover valve guide pipe hole and camshaft hole distance Survey method is further described.
Brief description of the drawings
Fig. 1 is a kind of structural representation of minicar engine cylinder head;
Fig. 2 is that the present invention uses the positioning base of measurement cubing and the combining structure schematic diagram of measurement mandrel;
Fig. 3 is the structural representation for the go-no go end cubing measurement card body that the present invention uses measurement cubing;
Fig. 4 is the structural representation for the go-no go end cubing measurement axle that the present invention uses measurement cubing;
Fig. 5 is the structural representation for the go-no go end cubing locating shaft that the present invention uses measurement cubing;
Fig. 6 is the structural representation for the go side cubing (or not-go-end cubing) that the present invention uses measurement cubing;
Fig. 7 is the sketch (only illustrating measurement mandrel and valve guide hole position) of present invention detection simulation;
Drawing reference numeral explanation:1- camshaft holes, 2- valve guide holes, 4- positioning bases, 5- cylindrical positioning pins, the positioning of 6- rhombuses Pin, 7- bearings, 8- measurement mandrels, 9- measurement card bodies, 10- fixed parts I, 11- main parts I, 12- positioning boss I, 13- location divisions, 14- fixed parts II, 15- main parts II, 16- positioning boss II, 17- measurement portions.
Embodiment
As shown in Figures 2 to 7, a kind of engine cylinder cap valve guide hole of the present invention and the detection side of camshaft hole distance Method, comprise the following steps:
(1) measurement cubing is made, measurement cubing includes positioning base, measurement mandrel, go side cubing and not-go-end cubing.Measurement inspection Be provided with the positioning base of tool can positioning cylinder lid ground cylindrical positioning pins and diamond positioning pin, measure the positioning bottom of cubing Seat upper surface end positions are also associated with a pair of bearings being oppositely arranged, and bearing positioning hole is respectively equipped with two bearings.Measure the heart The external diameter of axle is equal with the aperture of camshaft hole, and go side cubing and not-go-end cubing include measurement card body, locating shaft, measurement respectively Axle, measurement card body are provided with two axis holes be arrangeding in parallel, and locating shaft and measurement axle are respectively positioned at two axles of measurement card body The axle external diameter of Kong Zhong, locating shaft and measurement axle lower end is equal with the internal diameter of valve guide bushing respectively, and wherein locating shaft includes being arranged on Measure the main part I in card body axis hole, be extended with one section with externally threaded fixed part I, the lower end of main part I by the upper end of main part I Positioning boss I is arranged in the prominent part of, is extended by the lower end of positioning boss I and forms location division, the external diameter of location division and the hole of valve guide hole Footpath is identical.Measurement axle is outer including being arranged on the main part II measured in card body axis hole, one section of band being extended with by the upper end of main part II The fixed part II of screw thread, the lower end of main part II be arranged in the prominent part of positioning boss II, is extended by the lower end of positioning boss II and forms measurement portion, The external diameter of measurement portion is identical with the aperture of valve guide hole.The distance between valve guide hole and camshaft hole are A0, measurement card The distance between two axis holes are A on body1, the radius of valve guide hole is A2, the radius for measuring mandrel is A3, A1=A0+A2+ A3, A1、A0、A2、A3Form a distance between dimension chain, go side cubing measurement two axis holes of card body and be equal to A1Greatest limit The distance between size, not-go-end cubing measurement two axis holes of card body is equal to A1The minimum limit of size, go side cubing and not-go-end inspection The outline of tool is identical, only A1Size differ.
Now A is solved by taking the 465Q Engine Series cylinder head of five water chestnuts as an example1Size, 465Q Engine Series cylinder head Structure is as shown in figure 1, engine cylinder cap valve guide hole and camshaft hole centre-to-centre spacing A0=39.5 ± 0.05, valve guide hole Size A3ForThe aperture of camshaft hole isTherefore the radius A of mandrel is measured2ForA1、A0、A2、 A3Form a dimension chain, it is known that:Closed-loop A0=39.5 ± 0.05, subtract ringSubtract ringAsk unknown Increasing ring A1:
(1) the general formulae of Value Comparison Method is used, asks and increases ring A1Basic size, due to closed-loop basic size for each group cyclization The algebraical sum (all increasing ring size sums, which subtract, all subtracts ring size sum) of basic size,
So 39.5=A1-(15+3.5) A1=39.5+1.5+15=58mm
(2) size A is sought2Limit deviation,
1. all subtract ring least limit because the greatest limit deviation of closed-loop is equal to all circumpolars limit deviation sums that most increase and subtracted Deviation sum, i.e.,
A0Max=Σ sAimax- Σ xAimin
So A1max=39.55+ (3.5+15)=58.05mm
2. due to the least limit deviation of closed-loop be equal to it is all it is minimum increase ring limit deviation sums and subtract all subtract ring greatest limit Deviation sum, i.e.,
A0Min=Σ sAi min- Σ xAimax
So A1min=39.45+ (3.5075+15.0025)=57.96mm
Wherein A0max、A0Min is respectively the maximum of closed-loop, the minimum limit of size;
SAimax, sAimin are respectively maximum, the minimum limit of size for increasing ring;
XAimax, xAimin are respectively maximum, the minimum limit of size for subtracting ring;
Therefore the distance between two axis holes A on made go side cubing measurement card body1For 58.05mm, not-go-end cubing measurement card The distance between two axis holes A on body1For 57.96mm, go side cubing and not-go-end cubing are just produced by A1 two limiting values. Also step tries to achieve A1 two limiting values to the engine cylinder cap of other models in this way.
(2) cylinder head is positioned on positioning base, and mandrel will be measured and owned through what same cylinder covered Camshaft hole, and be positioned in each camshaft hole;When cylinder head is positioned on positioning base, determine the installation of cylinder head bottom surface Position hole is engaged with cylindrical positioning pins and diamond positioning pin respectively.When measurement mandrel is passed through into camshaft hole, the two of mandrel is measured End is respectively positioned in the bearing positioning hole of two bearings.
(3) detected, the locating shaft of go side cubing is positioned in a valve guide hole, go side with go side cubing The measurement card body of cubing perpendicularly across measurement mandrel on the upside of, refer to shown in Fig. 7, whether the measurement axle for observing go side cubing can be with Through measurement mandrel edge, it can pass through and then be of the required size, otherwise size is undesirable, according to said method with go side cubing Detect all valve guide holes in cylinder head.
(4) detected, the locating shaft of not-go-end cubing is positioned in a valve guide hole, not-go-end with not-go-end cubing The measurement card body of cubing perpendicularly across measurement mandrel on the upside of, refer to shown in Fig. 7, whether the measurement axle for observing not-go-end cubing can be with Through measurement mandrel edge, it is not possible to which, through being then of the required size, otherwise size is undesirable, is according to said method examined with not-go-end Tool has detected all valve guide holes in cylinder head.
After having inspected, measurement mandrel is removed outside camshaft hole, you can unload cylinder head from positioning base.
Above example is only presently preferred embodiments of the present invention, and structure of the invention is not limited to what above-described embodiment was enumerated Form, any modification made within the spirit and principles of the invention, equivalent substitution etc., it should be included in the guarantor of the present invention Within the scope of shield.

Claims (5)

1. a kind of engine cylinder cap valve guide hole and the detection method of camshaft hole distance, it is characterised in that including following Step:(One)Measurement cubing is made, measurement cubing includes positioning base, measurement mandrel, go side cubing and not-go-end cubing, measurement The external diameter of mandrel is equal with the aperture of camshaft hole, and go side cubing and not-go-end cubing include measurement card body, locating shaft, measurement respectively Axle, measurement card body are provided with two axis holes be arrangeding in parallel, and locating shaft and measurement axle are respectively positioned at two axles of measurement card body The axle external diameter of Kong Zhong, locating shaft and measurement axle lower end is equal with the internal diameter of valve guide bushing respectively, valve guide hole and camshaft hole The distance between be A0, it is A to measure the distance between two axis holes on card body1, the radius of valve guide hole is A2, measure mandrel Radius be A3, A1= A0+ A2+ A3, A1、A0、A2、A3A dimension chain is formed, go side cubing is measured between two axis holes of card body Distance be equal to A1Maximum limit of size, not-go-end cubing measurement the distance between two axis holes of card body are equal to A1Least limit Size;(Two)Cylinder head is positioned on positioning base, and will measurement mandrel cover through same cylinder it is all convex Axle hole, and be positioned in each camshaft hole;(Three)Detected with go side cubing, the locating shaft of go side cubing is positioned in one In individual valve guide hole, the measurement card body of go side cubing is perpendicularly across measurement mandrel upside, the measurement axle of observation go side cubing It is no to pass through measurement mandrel edge, it can pass through and then be of the required size, otherwise size is undesirable, according to said method with logical Hold all valve guide holes in cubing detection cylinder head;(Four)Detected with not-go-end cubing, the locating shaft of not-go-end cubing is positioned at In one of valve guide hole, the measurement card body of not-go-end cubing observes the survey of not-go-end cubing perpendicularly across measurement mandrel upside Measure whether axle can pass through measurement mandrel edge, it is not possible to which, through being then of the required size, otherwise size is undesirable, by this Method has detected all valve guide holes in cylinder head with not-go-end cubing.
2. engine cylinder cap valve guide hole as claimed in claim 1 and the detection method of camshaft hole distance, its feature Be, it is described measurement cubing positioning base on be provided with can positioning cylinder lid ground cylindrical positioning pins and diamond positioning pin, In step(Two)It is middle when cylinder head is positioned on positioning base, the mounting-positioning holes of cylinder head bottom surface is positioned respectively with cylinder Pin and diamond positioning pin are engaged.
3. engine cylinder cap valve guide hole as claimed in claim 1 and the detection method of camshaft hole distance, its feature It is, the positioning base upper surface end positions of the measurement cubing are also associated with a pair of bearings being oppositely arranged, on two bearings Bearing positioning hole is respectively equipped with, in step(Two)It is middle will measurement mandrel when pass through camshaft hole, measure the both ends of mandrel respectively calmly Position is in the bearing positioning hole of two bearings.
4. engine cylinder cap valve guide hole as claimed in claim 1 and the detection method of camshaft hole distance, its feature It is, the locating shaft is outer including being arranged on the main part I measured in card body axis hole, one section of band being extended with by the upper end of main part I The fixed part I of screw thread, the lower end of main part I be arranged in the prominent part of positioning boss I, is extended by the lower end of positioning boss I and forms location division, positions The external diameter in portion is identical with the aperture of valve guide hole.
5. engine cylinder cap valve guide hole as claimed in claim 1 and the detection method of camshaft hole distance, its feature It is, the measurement axle is including being arranged on the main part II measured in card body axis hole, being extended with one section of band by the upper end of main part II Externally threaded fixed part II, the lower end of main part II be arranged in the prominent part of positioning boss II, is extended by the lower end of positioning boss II and forms measurement Portion, the external diameter of measurement portion are identical with the aperture of valve guide hole.
CN201710863841.9A 2017-09-22 2017-09-22 Method for detecting distance between valve guide pipe hole and camshaft hole of engine cylinder cover Active CN107726956B (en)

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CN201710863841.9A CN107726956B (en) 2017-09-22 2017-09-22 Method for detecting distance between valve guide pipe hole and camshaft hole of engine cylinder cover

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100186261B1 (en) * 1995-12-29 1999-05-15 김태구 Apparatus for measuring bracket for mounting aircon compressor of a car
KR100202722B1 (en) * 1996-08-30 1999-06-15 양재신 Jig measuring length between the standard holes in the cylinder blocks
CN101173850A (en) * 2006-10-31 2008-05-07 扬动股份有限公司 Method and tool for measuring centre distance of two holes with vertical axes
CN201476746U (en) * 2009-07-31 2010-05-19 宁波优耐特模具有限公司 Vertical hole pitch measurement device
CN202074904U (en) * 2011-01-14 2011-12-14 奇瑞汽车股份有限公司 Testing device for detecting VIN code printing quality of automobile body
CN203083506U (en) * 2013-01-18 2013-07-24 重庆文达机械制造有限公司 Cylinder cover valve conduit hole gauge
CN103307955A (en) * 2013-06-14 2013-09-18 安徽江淮汽车股份有限公司 Center distance gauge of through hole
CN203869639U (en) * 2014-06-02 2014-10-08 中国重汽集团杭州发动机有限公司 Split-type calliper gauge for inspecting distance between center of hole and plane
CN204154212U (en) * 2014-10-31 2015-02-11 无锡麦铁精密机械制造有限公司 A kind of comprehensive check tool of exhaust manifold outlet side
CN204301655U (en) * 2014-12-17 2015-04-29 高要市力源压铸有限公司 The three-dimensional multiaspect pitch-row locating check fixture of wiper gear case before a kind of automobile
CN104613846A (en) * 2014-12-11 2015-05-13 高要市力源压铸有限公司 Three-dimensional multi-surface hole distance positioning gauge and inspection method for front wiper gearbox of automobile
CN206300583U (en) * 2016-12-30 2017-07-04 安徽江淮汽车集团股份有限公司 Metal plate detection device
CN106996733A (en) * 2016-01-22 2017-08-01 上海大众联合发展车身配件有限公司 A kind of cubing for being used to detect the gap spacing of auto parts

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100186261B1 (en) * 1995-12-29 1999-05-15 김태구 Apparatus for measuring bracket for mounting aircon compressor of a car
KR100202722B1 (en) * 1996-08-30 1999-06-15 양재신 Jig measuring length between the standard holes in the cylinder blocks
CN101173850A (en) * 2006-10-31 2008-05-07 扬动股份有限公司 Method and tool for measuring centre distance of two holes with vertical axes
CN201476746U (en) * 2009-07-31 2010-05-19 宁波优耐特模具有限公司 Vertical hole pitch measurement device
CN202074904U (en) * 2011-01-14 2011-12-14 奇瑞汽车股份有限公司 Testing device for detecting VIN code printing quality of automobile body
CN203083506U (en) * 2013-01-18 2013-07-24 重庆文达机械制造有限公司 Cylinder cover valve conduit hole gauge
CN103307955A (en) * 2013-06-14 2013-09-18 安徽江淮汽车股份有限公司 Center distance gauge of through hole
CN203869639U (en) * 2014-06-02 2014-10-08 中国重汽集团杭州发动机有限公司 Split-type calliper gauge for inspecting distance between center of hole and plane
CN204154212U (en) * 2014-10-31 2015-02-11 无锡麦铁精密机械制造有限公司 A kind of comprehensive check tool of exhaust manifold outlet side
CN104613846A (en) * 2014-12-11 2015-05-13 高要市力源压铸有限公司 Three-dimensional multi-surface hole distance positioning gauge and inspection method for front wiper gearbox of automobile
CN204301655U (en) * 2014-12-17 2015-04-29 高要市力源压铸有限公司 The three-dimensional multiaspect pitch-row locating check fixture of wiper gear case before a kind of automobile
CN106996733A (en) * 2016-01-22 2017-08-01 上海大众联合发展车身配件有限公司 A kind of cubing for being used to detect the gap spacing of auto parts
CN206300583U (en) * 2016-12-30 2017-07-04 安徽江淮汽车集团股份有限公司 Metal plate detection device

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