CN114235719A - Measuring device and measuring method for contact coloring of end face teeth - Google Patents
Measuring device and measuring method for contact coloring of end face teeth Download PDFInfo
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- CN114235719A CN114235719A CN202111528822.3A CN202111528822A CN114235719A CN 114235719 A CN114235719 A CN 114235719A CN 202111528822 A CN202111528822 A CN 202111528822A CN 114235719 A CN114235719 A CN 114235719A
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- 238000004040 coloring Methods 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 238000005286 illumination Methods 0.000 claims description 16
- 239000003550 marker Substances 0.000 claims description 12
- 238000010186 staining Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention provides a measuring device for contact coloring of a face tooth, which comprises an image acquisition device (10) and a data processing unit (70). An image acquisition device (10) is capable of acquiring raw image data of a coloring report containing a tooth-colored impression. The data processing unit (70) can analyze and determine a coloring analysis area corresponding to the tooth surface of the face tooth from the raw image data. The data processing unit (70) can also analyze the proportion of the pixel points meeting a set condition in the coloring analysis area to all the pixel points in the coloring analysis area according to the original image data to obtain proportion data. This colored measuring device of face tooth contact does benefit to and improves the colored measurement accuracy of face tooth contact. The invention also provides a measuring method for the contact coloring of the end face teeth.
Description
Technical Field
The invention relates to a measuring device, in particular to a measuring device for contact coloring of end face teeth. The invention also relates to a method for measuring the contact coloring of the end face teeth.
Background
In a multi-shaft compressor structure, the impeller and the rotor shaft are connected by means of end face teeth. In order to achieve good assembly quality between the impeller and the rotor shaft, the machining requirements on the end face teeth are extremely high. In the finished product detection process, the tooth surfaces of the end teeth need to be coated with blue oil for coloring detection, and the rubbing area proportion needs to meet the design requirement.
At present, the percentage of the rubbing area in the coloring report can be judged only by the visual inspection of an engineer. The requirements on the experience of engineers are high, and the accurate coloring area proportion is difficult to obtain, so that the error cannot be controlled.
Disclosure of Invention
The invention aims to provide a measuring device for contact coloring of end face teeth, which is beneficial to improving the measuring precision of the contact coloring of the end face teeth.
It is another object of the present invention to provide a method of measuring contact coloring of a spur tooth which facilitates improved accuracy of measurement of contact coloring of the spur tooth.
The invention provides a measuring device for contact coloring of end teeth, which comprises an image acquisition device and a data processing unit. The image capture device is capable of capturing raw image data of a rendered report containing a painted impression of a face tooth. The data processing unit is capable of analyzing from the raw image data to determine a coloring analysis region corresponding to the tooth surface of the face tooth. The data processing unit can also analyze the proportion of the pixel points meeting a set condition in the coloring analysis region to all the pixel points in the coloring analysis region according to the original image data so as to obtain proportion data.
This colored measuring device of face tooth contact does benefit to and improves the colored measurement accuracy of face tooth contact.
In another exemplary embodiment of a face tooth contact stain measuring device, the image acquisition device includes a support, a reporting stand, and a camera. The report rack is connected with the bracket and used for bearing the coloring report. The camera is connected with the bracket. The camera is capable of taking a picture of a painted report carried on the report frame to generate raw image data. The structure is simple, and the cost is low.
In yet another exemplary embodiment of the measuring device for contact coloring of a face tooth, the bracket includes a base, a support rod, an adjustment bracket, and a fixing bolt. The report rack is connected with the base. The support rod is connected with the base and extends along a first adjusting direction. The adjusting bracket is movably connected with the supporting rod along a first adjusting direction. The camera is connected with the adjusting frame. The fixing bolt is in threaded connection with the adjusting frame and can fix the relative positions of the supporting rod and the adjusting frame. Whereby adjustment of the relative position of the camera and the painted report in the first adjustment direction may be facilitated.
In yet another exemplary embodiment of a face tooth contact stain measuring device, the report stand includes a base, a mobile stand, and a support platform. The base is connected with the base. The movable frame is movably connected with the base along a second adjusting direction. The support platform is movably connected to the movable frame in a third adjustment direction and is used for carrying the coloring report. The first adjustment direction, the second adjustment direction and the third adjustment direction are perpendicular to each other. Whereby the position of the colorized report in the second adjustment direction and the third adjustment direction may be adjusted.
In yet another exemplary embodiment of the face tooth contact stain measuring device, the report holder further comprises a report clip. The report clip is connected with the support platform and can clip the colored report with the support platform. Whereby the coloured report can be conveniently fixed.
In yet another exemplary embodiment of the measuring device for contact coloring of a face tooth, the image acquisition device further comprises an illumination lamp and a light source controller. The illumination lamp is connected with the camera and can project light rays to the colored report carried on the report frame. The light emitting portion of the illumination lamp is provided in a ring shape extending in a circumferential direction perpendicular to the first adjustment direction. The camera is capable of acquiring an image of the colored report through the inner hole of the light emitting portion of the illumination lamp, whereby the uniformity of the light projected to the colored report can be improved. The light source controller is connected with the illuminating lamp and can control the switch and the brightness of the illuminating lamp, so that the illuminating lamp can be conveniently controlled.
In a further exemplary embodiment of the measuring device for contact coloring of a face tooth, the data processing unit is further capable of generating a contour line marking a contour of the coloring analysis region from the coloring analysis region, and generating one contour image data by superimposing the original image data and the contour line. The measuring device further comprises a display capable of displaying the profile image data and the scale data. So that the user can view the data conveniently.
In still another exemplary embodiment of the measuring apparatus for contact coloring of a face tooth, the data processing unit may be further capable of generating a marker image for marking all pixel points satisfying a set condition in the coloring analysis region, and superimposing the original image data and the marker image to generate one marker image data. The measuring device further includes a display capable of displaying the marker image data and the scale data. So that the user can view the data conveniently.
In a further exemplary embodiment of the measuring device for face-tooth contact coloration, the lens of the camera is a telecentric lens. Thereby contributing to an improvement in the image quality of the original image data.
The invention also provides a measuring method for the contact coloring of the end face teeth, which comprises the following steps: acquiring original image data of a coloring report containing a coloring print of the end surface teeth; analyzing and determining a coloring analysis area corresponding to the tooth surface of the end face tooth according to the original image data; and analyzing the proportion of the pixel points meeting a set condition in the coloring analysis region to all the pixel points in the coloring analysis region according to the original image data. The measuring method for the contact coloring of the end face teeth is beneficial to improving the measuring precision of the contact coloring of the end face teeth.
Drawings
The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention.
FIG. 1 is a schematic view of an exemplary embodiment of a measuring device for contact coloring of a face tooth.
Fig. 2 is a schematic view of the structure of a camera and an illumination lamp of the measuring apparatus shown in fig. 1.
Fig. 3 is a diagram illustrating the working principle of the measuring device shown in fig. 1.
FIG. 4 is a flow chart of one illustrative embodiment of a method of measuring contact staining of a face tooth.
Description of the reference symbols
10 image acquisition device
20 support
21 base
22 support rod
23 adjusting rack
24 fixing bolt
30 report rack
31 base
32 moving rack
33 support platform
34 report folder
40 Camera
Lens barrel of 41 camera
50 lighting lamp
51 light emitting part
60 light source controller
70 data processing unit
80 display
90 colored report
D1 first adjustment direction
D2 second adjustment direction
D3 third adjustment direction
Detailed Description
In order to more clearly understand the technical features, objects and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals indicate the same or structurally similar but functionally identical elements.
"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.
In this document, "first", "second", etc. do not mean their importance or order, etc., but merely mean that they are distinguished from each other so as to facilitate the description of the document.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product.
FIG. 1 is a schematic view of an exemplary embodiment of a measuring device for contact coloring of a face tooth. As shown in fig. 1, the measuring device for contact coloring of a face tooth includes an image acquisition device 10 and a data processing unit 70.
The data processing unit 70 is capable of analytically determining a coloring analysis area (coloring analysis area such as an area circled by a broken line in part B in fig. 3) corresponding to the tooth surface of the face tooth from the raw image data (raw image data such as shown in part a in fig. 3). The data processing unit 70 stores therein, for example, shape data of the tooth surface of the spur tooth, and determines a coloring analysis region corresponding to the tooth surface of the spur tooth based on the shape data. The data processing unit 70 can also analyze the ratio of the pixel points satisfying a set condition in the coloring analysis region (for example, the pixel points in the section line region of the part C in fig. 3) to all the pixel points in the coloring analysis region according to the original image data to obtain a ratio data. The setting condition is, for example, a gradation value. According to the proportion data, the working personnel can more accurately judge whether the end face teeth are qualified or not. This colored measuring device of face tooth contact does benefit to and improves the colored measurement accuracy of face tooth contact.
As shown in fig. 1, in the exemplary embodiment, the bracket 20 includes a base 21, a support rod 22, an adjustment bracket 23, and a fixing bolt 24. Report stand 30 is attached to base 21. The support bar 22 is connected to the base 21 and extends along a first adjustment direction D1. The adjustment bracket 23 is movably coupled to the support bar 22 in a direction opposite the first adjustment direction D1 and the first adjustment direction D1. The camera 40 is connected to the adjustment bracket 23. The fixing bolt 24 is screwed with the adjusting bracket 23 and can fix the relative positions of the supporting rod 22 and the adjusting bracket 23. In use, the adjusting bracket 23 is adjusted to a suitable height, and then the fixing bolt 24 is tightened to fix the relative positions of the supporting rod 22 and the adjusting bracket 23. Thereby facilitating adjustment of the relative position of the camera 40 and the colorized report 90 along the first adjustment direction D1.
As shown in FIG. 1, in the illustrated embodiment, the report stand 30 includes a base 31, a moving stand 32, and a support platform 33. The base 31 is connected to the base 21. The movable frame 32 is movably coupled to the base 31 along a second adjustment direction D2. The support platform 33 is movably coupled to the movable stand 32 in a third adjustment direction D3 and is configured to carry the coloring report 90. The first adjustment direction D1, the second adjustment direction D2 and the third adjustment direction D3 are, for example, mutually perpendicular. Whereby the position of the coloured report in the second adjustment direction D2 and the third adjustment direction D3 can be adjusted easily.
As shown in FIG. 1, in the illustrated embodiment, the report holder 30 further includes a report clip 34. Report clip 34 is connected to support platform 33 and is capable of clipping colored report 90 with support platform 33. Whereby the coloured report can be conveniently fixed. In the illustrated embodiment, the reporting clip 34 is, for example, a spring tab.
As shown in fig. 1 and 2, in the exemplary embodiment, the image capturing device 10 further includes an illumination lamp 50 and a light source controller 60. The illumination lamp 50 is connected to the camera 40 and is capable of projecting light toward a colored report 90 carried on the report holder 30. As shown in fig. 2, the light emitting portion 51 of the illumination lamp 50 is provided in a ring shape extending in a circumferential direction perpendicular to the first adjustment direction D1. The camera 40 is able to take an image of the coloured report 90 through the inner bore of the light emitting portion 51 of the illumination lamp 50. Thereby improving the uniformity of the light projected onto the colored report 90. The light source controller 60 is connected to the illumination lamp 50 and can control the on/off and brightness of the illumination lamp 50. Whereby the illumination lamp 50 can be conveniently controlled.
In an exemplary embodiment, the data processing unit 70 is further capable of generating a contour line (e.g., a dotted line in fig. 3B) marking a contour of the coloring analysis region from the coloring analysis region, and superimposing the original image data and the contour line to generate one contour image data (e.g., fig. 3B). As shown in FIG. 1, the measuring device further includes a display 80 capable of displaying the profile image data and the scale data. So that the user can view the data conveniently.
In the exemplary embodiment, the data processing unit 70 is further capable of generating a marker image (for example, a hatching area image of the portion C in fig. 3) that marks all the pixel points satisfying the setting condition in the coloring analysis area, and generating one marker image data (for example, the portion C in fig. 3) by superimposing the original image data and the marker image. The display 80 is capable of displaying the marker image data and the scale data. So that the user can view the data conveniently.
FIG. 4 is a flow chart of an exemplary embodiment of a method of measuring contact coloring of a face tooth, such as using the measuring device of FIG. 1. As shown in fig. 4, the method of measuring contact coloring of a face tooth includes the steps of:
s10: acquiring original image data of a coloring report containing a coloring print of the end surface teeth;
s20: analyzing and determining a coloring analysis area corresponding to the tooth surface of the end face tooth according to the original image data; and
s30: and analyzing the proportion of the pixel points meeting a set condition in the coloring analysis region in all the pixel points in the coloring analysis region according to the original image data. According to the numerical value of this proportion, the staff can judge more accurately whether the terminal surface tooth is qualified. The measuring method for the contact coloring of the end face teeth is beneficial to improving the measuring precision of the contact coloring of the end face teeth.
It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications such as combinations, divisions or repetitions of features, which do not depart from the technical spirit of the present invention, should be included in the scope of the present invention.
Claims (10)
1. A device for measuring contact staining of a face tooth, comprising:
an image acquisition device (10) capable of acquiring raw image data of a coloring report containing a tooth-coloring print; and
and the data processing unit (70) can analyze and determine a coloring analysis area corresponding to the tooth surface of the end face tooth according to the original image data, and the data processing unit (70) can analyze the proportion of pixel points meeting a set condition in the coloring analysis area to all pixel points in the coloring analysis area according to the original image data so as to obtain proportion data.
2. A measurement device for contact staining of a face tooth according to claim 1, characterized in that the image acquisition device (10) comprises:
a support (20) for supporting the support,
a report holder (30) connected to said support (20) and adapted to carry said colored report, an
A camera (40) coupled to said support (20), said camera (40) capable of taking a picture of said painted report carried on said report frame (30) to generate said raw image data.
3. A face tooth contact stain measuring device as claimed in claim 2 characterised in that the bracket (20) comprises:
a base (21), said report stand (30) being connected to said base (21),
a support bar (22) connected to the base (21) and extending in a first adjustment direction (D1),
an adjusting bracket (23) movably connected to the supporting bar (22) in the first adjusting direction (D1), the camera (40) being connected to the adjusting bracket (23), an
And the fixing bolt (24) is in threaded connection with the adjusting frame (23) and can fix the relative positions of the supporting rod (22) and the adjusting frame (23).
4. A face tooth contact stain measuring device as claimed in claim 3 characterised in that the report holder (30) comprises:
a base (31) connected to the base (21),
a mobile frame (32) movably connected to the base (31) in a second adjustment direction (D2), an
-a support platform (33) movably connected to said mobile frame (32) along a third adjustment direction (D3) for carrying said coloring reports, said first (D1), said second (D2) and said third (D3) adjustment directions being mutually perpendicular.
5. A facing tooth contact stain measuring device according to claim 4 characterised in that the report holder (30) further comprises a report clip (34), the report clip (34) being connected to the support platform (33) and being capable of holding the stain report with the support platform (33).
6. A measurement device for contact staining of a face tooth according to claim 3, characterized in that the image acquisition device (10) further comprises:
an illumination lamp (50), said illumination lamp (50) being connected to said camera (40) and capable of projecting light rays toward said coloring report carried on said report holder (30), a light emitting portion (51) of said illumination lamp (50) being provided in a ring shape extending in a circumferential direction perpendicular to said first adjustment direction (D1), said camera (40) being capable of taking an image of said coloring report through an inner hole of said light emitting portion (51) of said illumination lamp (50), and
and the light source controller (60) is connected with the illuminating lamp (50) and can control the on-off and the brightness of the illuminating lamp (50).
7. A measuring device for contact coloring of a face tooth according to claim 1, wherein said data processing unit (70) is further capable of generating a contour line marking a contour of said coloring analysis region from said coloring analysis region and superimposing said original image data and said contour line to generate a contour image data; the measuring device further comprises a display (80) capable of displaying the contour image data and the scale data.
8. The apparatus for measuring contact stain of a face tooth as set forth in claim 1, wherein the data processing unit (70) is further capable of generating a marker image for marking all pixel points satisfying the setting condition in the stain analysis area, and superimposing the original image data and the marker image to generate one marker image data; the measuring device further comprises a display (80) capable of displaying the marker image data and the scale data.
9. A measurement device for contact tinting of teeth on a face as claimed in claim 2 characterised in that the lens of the camera (40) is telecentric.
10. A method of measuring contact stain in a face tooth, comprising:
acquiring original image data of a coloring report containing a coloring print of the end surface teeth;
analyzing and determining a coloring analysis area corresponding to the tooth surface of the face tooth according to the original image data; and
and analyzing the proportion of the pixel points meeting a set condition in the coloring analysis region in all the pixel points of the coloring analysis region according to the original image data.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111528822.3A CN114235719A (en) | 2021-12-14 | 2021-12-14 | Measuring device and measuring method for contact coloring of end face teeth |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111528822.3A CN114235719A (en) | 2021-12-14 | 2021-12-14 | Measuring device and measuring method for contact coloring of end face teeth |
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