CN108662990B - Inclination measuring device and method for inclined hole of cylinder cover - Google Patents
Inclination measuring device and method for inclined hole of cylinder cover Download PDFInfo
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- CN108662990B CN108662990B CN201810242817.8A CN201810242817A CN108662990B CN 108662990 B CN108662990 B CN 108662990B CN 201810242817 A CN201810242817 A CN 201810242817A CN 108662990 B CN108662990 B CN 108662990B
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- cylinder cover
- inclined hole
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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Abstract
An inclination measuring device for an inclined hole of a cylinder cover comprises a light sensing plate and a parallel light source, wherein the light sensing plate is fixed in the horizontal direction, the parallel light source is positioned above the light sensing plate, a cover conveying mechanism is positioned between the light sensing plate and the parallel light source, the cover conveying mechanism comprises a conveying belt and a driving wheel, the cylinder cover is arranged on the conveying belt at equal intervals, and the driving wheel drives the conveying belt to move and is connected with an intermittent movement mechanism; the device using method comprises the following steps: adjusting the angle of the parallel light source to be consistent with the inclination of the required inclined hole of the cylinder cover; arranging the cylinder heads on the conveying belt at equal intervals; the conveying belt drives the cylinder cover to move and stops when being aligned with the parallel light source; presenting an ellipse on the light-sensing plate, measuring and recording the major axis length of the ellipse; calculating and analyzing whether the inclination of the corresponding cylinder cover inclined hole meets the requirement or not; the inclination of the inclined hole of the cylinder cover is measured by utilizing the principle of parallel light source imaging, the precision is high, the cylinder cover is driven by the conveying belt to move, online detection is realized, and the detection efficiency is high.
Description
Technical Field
The invention relates to a device and a method for measuring the inclination of an inclined hole of a cylinder cover.
Background
The cylinder cover belongs to a gas distribution mechanism in an internal combustion engine structure, is used for sealing the upper part of a cylinder, forms a gas chamber with the cylinder and a piston in an enclosing mode, sucks air into the cylinder to form combustible mixed gas during an air inlet stroke of the internal combustion engine and discharges waste gas of the combustion chamber during an exhaust stroke, and for a gasoline engine, a mounting hole for fixedly mounting a spark plug is further formed in the cylinder cover of the gasoline engine.
Disclosure of Invention
Aiming at the defects in the problems, the invention provides a device and a method for measuring the inclination of an inclined hole of a cylinder cover.
To achieve the above object, the present invention provides an inclination measuring device of an inclined hole of a cylinder head, comprising:
the device comprises a light sensing plate and a parallel light source, wherein the light sensing plate is fixed along the horizontal direction, and the parallel light source is positioned above the light sensing plate;
the cover conveying mechanism is positioned between the light sensing plate and the parallel light source, and the cylinder covers are arranged on the cover conveying mechanism at equal intervals;
measuring cylinder head inclination by the inclination measuring deviceThe method for the inclination of the hole comprises the following steps: the angle of the parallel light source is adjusted to be consistent with the inclination of the required inclined hole of the cylinder cover; arranging the cylinder heads on a conveying belt of the cover conveying mechanism at equal intervals; driving a cylinder cover to move through the conveying belt and stopping when the cylinder cover is aligned with the parallel light source; presenting an ellipse on said plate, measuring and recording the major axis length of the ellipse (length jk in fig. 2); the calculation formula is as follows:
d is the aperture required to be processed on the cylinder cover, theta is the included angle between the hole required to be processed on the cylinder cover and the horizontal line, and h represents the height value of the cylinder cover and the error of actual processing; and calculating and analyzing whether the inclination of the corresponding inclined hole of the cylinder cover meets the requirement or not.
As a further improvement of the invention, the angle of the light source is adjustable.
As a further improvement of the invention, the two sets of cover conveying mechanisms are symmetrically distributed on two sides of the cylinder cover.
As a further improvement of the invention, each set of cover conveying mechanism comprises a conveying belt and a driving wheel, and the conveying belt is used for dragging one side of the cylinder cover.
As a further improvement of the invention, the driving wheel drives the conveying belt to move, and the driving wheel is connected with the intermittent movement mechanism.
As a further improvement of the present invention, the intermittent mechanism may be a ratchet mechanism, a geneva gear mechanism, a link mechanism or an incomplete gear mechanism.
The invention has the beneficial effects that:
1. the inclination of the inclined hole of the cylinder cover is measured by utilizing the principle of parallel light source imaging, and the measurement precision is high.
2. The device drives the cylinder cover to move by the conveying belt, and is high in detection efficiency through online detection.
Drawings
FIG. 1 is a schematic analysis diagram of a method for measuring an inclination angle of a spark plug mounting hole according to the present invention;
fig. 2 is an enlarged view of the position a in fig. 1.
In the figure:
1. a cylinder head; 2. a light-sensing plate;
the dotted line represents a standard hole which is required to be processed on the cylinder cover, has the aperture d and forms an included angle theta with the horizontal line;
the dotted line represents a collimated light source at an angle θ to the horizontal;
the solid line represents the actually processed hole, the hole diameter is d, and the hole has an included angle theta + with the horizontal line;
represents a slight deviation;
h represents the height value of the cylinder head.
Detailed Description
The embodiment of the invention provides a device and a method for measuring the inclination of an inclined hole of a cylinder cover.
The invention provides an inclination measuring device of an inclined hole of a cylinder cover, which comprises a light-sensing plate and a parallel light source, wherein the light-sensing plate is fixed along the horizontal direction, the parallel light source is positioned above the light-sensing plate, and the angle of the light source is adjustable; the cover conveying mechanisms are positioned between the light sensing plate and the parallel light source, the cylinder covers are arranged on the cover conveying mechanisms at equal intervals, the two cover conveying mechanisms are symmetrically distributed on two sides of the cylinder covers, each cover conveying mechanism comprises a conveying belt and a driving wheel, the conveying belt is used for dragging one side of the cylinder cover, the driving wheel drives the conveying belt to move, the driving wheel is connected with the intermittent movement mechanism, and the intermittent movement mechanism can be a ratchet mechanism, a grooved wheel mechanism, a connecting rod mechanism or an incomplete gear mechanism.
The method for measuring the inclination of the inclined hole of the cylinder cover by the inclination measuring device comprises the following steps:
a. adjusting the angle of the parallel light source to be consistent with the inclination of the required inclined hole of the cylinder cover;
b. arranging the cylinder heads on the conveying belt at equal intervals;
c. the conveying belt drives one cylinder cover to move and stops when being aligned with the parallel light source;
d. presenting an ellipse on the light-sensing plate, measuring and recording the major axis length of the ellipse;
e. and calculating and analyzing whether the inclination of the corresponding inclined hole of the cylinder cover meets the requirement or not.
The inclination of the inclined hole of the cylinder cover is measured by utilizing the principle of parallel light source imaging, the measurement precision is high, the cylinder cover is driven by the conveying belt to move, online detection is realized, and the detection efficiency is high.
In particular, for the convenience of understanding, the principle of the method for using the device is described with reference to the accompanying drawings;
as shown in fig. 1, the cylinder head stops while being intermittently transported on the conveyor belt and aligned with the collimated light source, which forms an image on the photosensitive web through the inclined hole, as shown in the enlarged view of fig. 2.
As shown in fig. 2, the dotted line indicates a standard hole with a diameter d and an angle θ with the horizontal line, which is required to be processed on the cylinder cover, and the standard hole presents an ellipse on the light-sensing plate, the major axis of the ellipse is the length of a line im, and the length of the line im is d/sin θ;
when the actually processed cylinder cover inclined hole is a hole with an angle theta + with the horizontal line and the aperture is d, a tiny deviation value is shown, and the major axis of the ellipse presented on the light-sensing plate is the length of a line segment jk;
the length of the segment jk is equal to the length of the segment ef, equal to the length of the segment eg minus the length of the segment fg, equal to the length of the segment ce (congruent triangle);
namely, it is
F (theta, h) represents that the length of the line fg is a trigonometric function with respect to three variables of F (theta, h), h represents the height value of the cylinder head;
actually comparing the length value of the line jk with the length value of the line im in a certain deviation range indicates that the inclination processing of the inclined hole of the cylinder cover meets the requirement.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An inclination measuring device of an inclined hole of a cylinder cover is characterized by comprising:
the device comprises a light sensing plate and a parallel light source, wherein the light sensing plate is fixed along the horizontal direction, and the parallel light source is positioned above the light sensing plate;
the cover conveying mechanism is positioned between the light sensing plate and the parallel light source, and the cylinder covers are arranged on the cover conveying mechanism at equal intervals;
the method for measuring the inclination of the inclined hole of the cylinder cover by the inclination measuring device comprises the following steps: the angle of the parallel light source is adjusted to be consistent with the inclination of the required inclined hole of the cylinder cover; arranging the cylinder heads on a conveying belt of the cover conveying mechanism at equal intervals; driving a cylinder cover to move through the conveying belt and stopping when the cylinder cover is aligned with the parallel light source; presenting an ellipse on said plate, measuring and recording the major axis of the ellipse
Length; the calculation formula is as follows:
d is the aperture required to be processed on the cylinder cover, theta is the included angle between the hole required to be processed on the cylinder cover and the horizontal line, and h represents the height value of the cylinder cover and the error of actual processing; and calculating and analyzing whether the inclination of the corresponding inclined hole of the cylinder cover meets the requirement or not.
2. The inclination measuring device of a cylinder head inclined hole according to claim 1, characterized in that: the angle of the light source is adjustable.
3. The inclination measuring device of a cylinder head inclined hole according to claim 1, characterized in that: the two sets of cover conveying mechanisms are symmetrically distributed on two sides of the cylinder cover.
4. The inclination measuring device of a cylinder head inclined hole according to claim 3, characterized in that: each cover conveying mechanism comprises a conveying belt and a driving wheel, and the conveying belt is used for dragging one side of the cylinder cover.
5. The inclination measuring device of a cylinder head inclined hole according to claim 4, characterized in that: the driving wheel drives the conveying belt to move, and the driving wheel is connected with the intermittent movement mechanism.
6. The inclination measuring device of a cylinder head inclined hole according to claim 5, characterized in that: the intermittent motion mechanism is a ratchet mechanism, a geneva mechanism, a connecting rod mechanism or an incomplete gear mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810242817.8A CN108662990B (en) | 2018-03-23 | 2018-03-23 | Inclination measuring device and method for inclined hole of cylinder cover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810242817.8A CN108662990B (en) | 2018-03-23 | 2018-03-23 | Inclination measuring device and method for inclined hole of cylinder cover |
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| Publication Number | Publication Date |
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| CN108662990A CN108662990A (en) | 2018-10-16 |
| CN108662990B true CN108662990B (en) | 2020-08-11 |
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| CN201810242817.8A Active CN108662990B (en) | 2018-03-23 | 2018-03-23 | Inclination measuring device and method for inclined hole of cylinder cover |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114719772B (en) * | 2022-03-22 | 2024-02-02 | 奕目(上海)科技有限公司 | Method and system for acquiring inclined angle of inclined hole |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045175A (en) * | 1990-03-02 | 1990-09-05 | 冶金工业部武汉勘察研究院 | A kind of high-precision gradiometer for horizontal drilling |
| JPH06258022A (en) * | 1993-03-03 | 1994-09-16 | Honda Motor Co Ltd | Measuring method of hole position |
| CN2777488Y (en) * | 2005-03-22 | 2006-05-03 | 东华大学 | Device for automatically testing spinneret plate |
| CN101846505A (en) * | 2009-03-23 | 2010-09-29 | 日本碍子株式会社 | The inspection method of honeycomb |
| US8531679B2 (en) * | 2007-12-10 | 2013-09-10 | Nova Measuring Instruments Ltd. | Optical system and method for measurement of one or more parameters of via-holes |
| CN103940374A (en) * | 2014-04-09 | 2014-07-23 | 华南理工大学 | System and method for detecting perpendicularity of group holes based on vision measurement |
-
2018
- 2018-03-23 CN CN201810242817.8A patent/CN108662990B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045175A (en) * | 1990-03-02 | 1990-09-05 | 冶金工业部武汉勘察研究院 | A kind of high-precision gradiometer for horizontal drilling |
| JPH06258022A (en) * | 1993-03-03 | 1994-09-16 | Honda Motor Co Ltd | Measuring method of hole position |
| CN2777488Y (en) * | 2005-03-22 | 2006-05-03 | 东华大学 | Device for automatically testing spinneret plate |
| US8531679B2 (en) * | 2007-12-10 | 2013-09-10 | Nova Measuring Instruments Ltd. | Optical system and method for measurement of one or more parameters of via-holes |
| CN101846505A (en) * | 2009-03-23 | 2010-09-29 | 日本碍子株式会社 | The inspection method of honeycomb |
| CN103940374A (en) * | 2014-04-09 | 2014-07-23 | 华南理工大学 | System and method for detecting perpendicularity of group holes based on vision measurement |
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| CN108662990A (en) | 2018-10-16 |
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