CN107289884A - A kind of image measurer - Google Patents
A kind of image measurer Download PDFInfo
- Publication number
- CN107289884A CN107289884A CN201610250271.1A CN201610250271A CN107289884A CN 107289884 A CN107289884 A CN 107289884A CN 201610250271 A CN201610250271 A CN 201610250271A CN 107289884 A CN107289884 A CN 107289884A
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- CN
- China
- Prior art keywords
- axis
- platform
- scale plate
- camera device
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
Abstract
The present invention provides a kind of image measurer, and the platform includes：Platform framework, objective table, the first scale plate, the first camera device.Using technical scheme, calculated again by specific coordinate value by directly being taken pictures to scale plate, it is to avoid the error being likely to result in using grating by assembling, while greatly reducing cost.
Description
Technical field
The present invention relates to radiographic measurement technical field, a kind of image measurer is specifically related to.
Background technology
Image measurer be it is a kind of be widely used in for the purpose of two measurement of coordinates machinery,
High accuracy, the high-tech measuring instrument of the industries such as electronics, instrument, hardware, plastic cement, its
Integrate light, mechanical, electrical, computer image technology, also known as accurate image-type surveying instrument.Shadow
As measuring instrument can carry out microcosmic detection and the quality control of precision parts, it compensate for passing
The deficiency of system projecting apparatus, profile and surface configuration size, angle to various complex parts
And position can effectively be measured.
Existing measuring instrument be on an XY direction each grating scale as location sensitive
Device equipment, during traverse measurement platform, X, the grating in Y-axis exports its linear position signal,
By calculating, so that it may obtain the XY coordinate values of measurement position, exist so as to obtain measurement point
The position of X/Y plane.The measurement position of vertical direction, is by one on Z axis
Grating scale read-out position coordinate, so as to draw Z axis information.
The coordinate position of present measuring instrument, is to export its straight line by three grating scales
Positional information, so as to calculate the coordinate value of measurement position.Due to high-precision grating scale
And its drive circuit cost is high, and in XY both directions by two grating scales are flat to measure
During the position coordinates of face, because the angle of assembling of two grating scales has certain error, so
High-acruracy survey is extremely difficult, and cost is high.
The content of the invention
To solve the above problems, the present invention proposes a kind of image measurer.The present invention passes through
Calculated again by specific coordinate value due to directly being taken pictures to scale plate, it is to avoid adopt
The error being likely to result in grating by assembling, while greatly reducing cost.
The present invention provides a kind of image measurer, including：Platform, Z axis support, master take the photograph
As device, control device；
The platform includes：Platform framework, objective table, the first scale plate, the first shooting
Device；
The objective table is arranged on the upper surface of the platform framework, to be measured for placing
Object；First scale plate is fixedly installed on below the objective table, and described first
Scale plate lower surface sets XY direction of principal axis coordinates；The control device controls the loading
Platform drives first scale plate to be moved respectively along XY direction of principal axis；First shooting
Device is fixedly installed in the platform framework；First camera device and the control
Device is electrically connected, and the first camera device is controlled to first scale plate by control device
The XY direction of principal axis coordinates that lower surface is set are taken pictures；
The Z axis support includes：Z axis framework, the second scale plate, the second camera device；
The Z axis framework connects the platform in Z-direction, the Z axis frame hollow,
And the second scale plate of setting is axially fixed in Z axis framework；Second scale plate is just right
The one side of second camera device sets Z-direction coordinate；Second camera device
It is fixedly installed in the hollow Z axis framework, second camera device and the control
Device electrical connection processed, the Z for controlling to set the second scale back by control device
Direction of principal axis coordinate is taken pictures；The control device control Z axis framework drives the second camera device
It can be moved up and down along Z-direction, second scale plate is fixed；
The main camera device is by the connection of the Z axis support positioned at the upper of the platform
Side, is electrically connected with the control device, is used for by the control of control device to described flat
Object to be measured above platform is taken pictures, and the main camera device is with the Z axis frame
Frame is moved up and down along Z-direction.
Can be to find out from above technical scheme, the embodiment of the present invention has advantages below：
1st, due to when object to be measured is placed on platform, due to the first scale plate following table
Face is provided with XY direction of principal axis coordinates, so can photograph by the first camera device
The XY direction of principal axis coordinate values of one scale plate, can photograph measurement flat by main camera device
The shape of object on platform, due to every equipment the first camera device and main camera device it
Between the position relationship of XY direction of principal axis be to determine constant, pass through mobile platform and first
Scale plate, when main camera device photographs the corresponding image of object diverse location to be measured,
The different seats on the corresponding scale plate of the image can be photographed by the first camera device
Scale value, passes through the image shot to main camera device and the first camera device of control device
Data analysis calculates the size for the XY direction of principal axis that can just calculate object being measured.Root
According to above-mentioned principle in Z axis support, now the second scale Board position is constant, and second takes the photograph
(i.e. position therebetween is moved up and down along Z-direction as device and main camera device are synchronous
It is relatively fixed constant), therefore again by control device to shooting subject image and combining
The data of corresponding Z axis coordinate value carry out analysis calculating, it is possible to measure the Z axis of object
The size in direction.The tool for calculating the specific size of image is combined above by image and coordinate value
Body calculating process belongs to prior art, will not be repeated here, using the method for the present invention,
Calculated again by specific coordinate value due to directly being taken pictures to first, second scale,
Oblique angle difference can also be used as needed, the method such as speckle pattern interferometry is carried to coordinate precision
Height, etc..The error being likely to result in using grating by assembling is avoided, while dropping significantly
Low cost.
2nd, also divide in scale, the platform and the Z axis support for apparent photographing
Lighting device is not set, and the lighting device electrically connects the control device.
3rd, the coordinate value method for expressing of the coordinate and coding have a variety of, as long as according to shooting
Device takes the codes co-ordinates of its position, and camera device correspondence is can recognize that according to image
Position.
Brief description of the drawings
Fig. 1, is a kind of overall structure diagram of embodiment of the present invention；
Fig. 2, is the structural representation for removing support board of an embodiment of the present invention；
Fig. 3, is the internal structure schematic diagram for removing scale plate of an embodiment of the present invention；
Fig. 4, is the Z axis internal structure structural representation of an embodiment of the present invention.
Embodiment
The present invention proposes a kind of image measurer.Due to directly being taken pictures to scale again by tool
The coordinate value of body is calculated, it is to avoid the error being likely to result in using grating by assembling,
Greatly reduce cost simultaneously.
Below in conjunction with the Figure of description in the present invention, the technical scheme in invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of the invention
Embodiment, rather than whole embodiments.Based on the embodiment in the present invention, this area
All other reality that those of ordinary skill is obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
Embodiment one,
As shown in Figure 1, 2, 3, the present invention proposes a kind of image measurer, the image
Measuring instrument includes：Platform 11, Z axis support 12, main camera device 13, control device (figure
Do not illustrate).
The platform 11, its upper surface is used to place object to be measured, the platform 11
Into horizontal positioned.It should be noted that the platform can have any shape, including square
Shape, circle etc., the preferred rectangle in this specific embodiment.
The platform 11 includes：Platform framework 111, objective table 112, the first scale plate
113rd, the first camera device 114.
The objective table 112 is arranged on the upper surface of the platform framework 111, for putting
Put object to be measured.The plate of first scale 113 is fixedly installed on the objective table 112
Lower section, and the lower surface of the first scale plate 113 sets XY direction of principal axis coordinates, such as：
(X1, Y1), (X2, Y2) ... .. (Xn, Yn).The control device controls objective table 112
First scale plate 113 is driven to be moved respectively along XY direction of principal axis.
First camera device 114 is fixedly installed in platform framework 111；Described
One camera device 114 and control device electrical connection, first is controlled by control device
The XY direction of principal axis that 114 pairs of the camera device lower surface of the first scale plate 113 is set is sat
Mark is taken pictures.
As shown in Fig. 1,4, the Z axis support 12 includes：Z axis framework 121, second
Scale plate 122, the second camera device 123；
The Z axis framework 121 connects the platform 11, the Z axis frame in Z-direction
Frame 121 is hollow, and the second scale plate 122 of setting is axially fixed in Z axis framework 121.
Second scale plate 122 just sets Z axis to the one side of second camera device 123
Direction coordinate.
Second camera device 123 is fixedly installed on the hollow Z axis framework 121
It is interior, the second camera device 123 and the control device electrical connection, by controlling to fill
Putting control can take pictures to the Z-direction coordinate that the back side of the second scale plate 122 is set.
The control device control Z axis framework 121 drives the second camera device 123 can edge
Z-direction is moved up and down, fixed (second scale plate of the second scale plate 122
It can be fixed on platform or Z axis frame bottom, such Z axis framework movement will not band
Dynamic second scale plate movement).
As Figure 1-4, the connection that the main camera device 13 passes through Z axis support 12
Positioned at the top of the platform 11, electrically connected with the control device, pass through control device
Control be used to take pictures to the object to be measured of the top of the platform 11.The master takes the photograph
As device 13 as the Z axis framework 121 is moved up and down along Z-direction.
Because main camera device 13 is moved along Z-direction, therefore do not have in XY direction of principal axis
Displacement, thus main camera device 13 relative to the first camera device 114 in XY direction of principal axis
Position is relatively constant.
Because control device control Z axis framework 121 drives the second camera device 123 along Z
Direction of principal axis is moved up and down, therefore in the Z-axis direction, the second camera device 123 relative to
The position of main camera device 13 is constant.
In summary, when object to be measured is placed on platform, due to the first scale plate
Lower surface is provided with XY direction of principal axis coordinates, can so be shot by the first camera device
To the XY direction of principal axis coordinate values of the first scale plate, survey can be photographed by main camera device
The shape of object on platform is measured, because the first camera device and the main shooting of every equipment are filled
The position relationship of XY direction of principal axis between putting be to determine it is constant, by mobile platform and
First scale plate, when main camera device photographs the corresponding figure of object diverse location to be measured
Picture, can be photographed on the corresponding scale plate of the image not by the first camera device
Same coordinate value, is shot by control device to main camera device and first camera device
Analysis of image data calculates the size for the XY direction of principal axis that can just calculate object being measured.
According to above-mentioned principle in Z axis support, now the second scale Board position is constant, and
Second camera device and main camera device be synchronous to be moved up and down along Z-direction (both i.e. it
Between position be relatively fixed it is constant), therefore again by control device to shoot subject image
And combine the data progress analysis calculating of corresponding Z axis coordinate value, it is possible to measure object
Z-direction size.
Combined above by image and coordinate value and calculate specifically calculating for the specific size of image
Journey belongs to prior art, will not be repeated here, using the method for the present invention, due to direct
First, second scale is taken pictures and calculated again by specific coordinate value, as needed
It can also use oblique angle difference, the method such as speckle pattern interferometry to coordinate precision improve, etc..
The error being likely to result in using grating by assembling is avoided, while greatly reducing cost.
As shown in Figure 3,4, in certain embodiments, it is apparent to photograph scale plate
On scale, also set in the platform and the Z axis support first, second to shine respectively
Bright device 115,124, the electrical connection of first, second lighting device 115,124 is described
Control device.
In certain embodiments, the coordinate value method for expressing of the coordinate and coding have a variety of,
As long as taking the codes co-ordinates of its position according to camera device, this can recognize that according to image
The corresponding position of camera device.
In certain embodiments, the support board and first scale plate synthesis one piece the
Object is placed in two support boards, the second support board front, and the back side directly sets XY side
To coordinate.
A kind of image measurer provided by the present invention is described in detail above, it is right
In those of ordinary skill in the art, according to the thought of the embodiment of the present invention, specific real
Apply and will change in mode and application, therefore, this specification content should not
It is interpreted as limitation of the present invention.
Claims (5)
1. a kind of image measurer, it is characterised in that including：Platform, Z axis support,
Main camera device, control device；
The platform includes：Platform framework, objective table, the first scale plate, the first shooting
Device；
The objective table is arranged on the upper surface of the platform framework, to be measured for placing
Object；First scale plate is fixedly installed on below the objective table, and described first
Scale plate lower surface sets XY direction of principal axis coordinates；The control device controls the loading
Platform drives first scale plate to be moved respectively along XY direction of principal axis；First shooting
Device is fixedly installed in the platform framework；First camera device and the control
Device is electrically connected, and the first camera device is controlled to first scale plate by control device
The XY direction of principal axis coordinates that lower surface is set are taken pictures；
The Z axis support includes：Z axis framework, the second scale plate, the second camera device；
The Z axis framework connects the platform in Z-direction, the Z axis frame hollow,
And the second scale plate of setting is axially fixed in Z axis framework；Second scale plate is just right
The one side of second camera device sets Z-direction coordinate；Second camera device
It is fixedly installed in the hollow Z axis framework, second camera device and the control
Device electrical connection processed, the Z for controlling to set the second scale back by control device
Direction of principal axis coordinate is taken pictures；The control device control Z axis framework drives the second camera device
Moved up and down along Z-direction, second scale plate is fixed；
The main camera device is by the connection of the Z axis support positioned at the upper of the platform
Side, is electrically connected with the control device, is used for by the control of control device to described flat
Object to be measured above platform is taken pictures, and the main camera device is with the Z axis frame
Frame is moved up and down along Z-direction.
2. influence measuring instrument according to claim 1, it is characterised in that described flat
Also include the first lighting device, the first lighting device electrical connection control dress in platform
Put.
3. influence measuring instrument according to claim 2, it is characterised in that the Z
Also include the second lighting device in bracing strut, second lighting device electrically connects the control
Device processed.
4. the influence measuring instrument according to claim 1 or 2 or 3, it is characterised in that
The XY direction of principal axis coordinate, the coordinate value of Z-direction coordinate include：Numerical value, coding,
Image.
5. influence measuring instrument according to claim 1 or 2, it is characterised in that institute
State support board and first scale plate synthesizes one piece of second support board, second loading
Object is placed in plate front, and the back side directly sets XY directions coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610250271.1A CN107289884A (en) | 2016-04-11 | 2016-04-11 | A kind of image measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610250271.1A CN107289884A (en) | 2016-04-11 | 2016-04-11 | A kind of image measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107289884A true CN107289884A (en) | 2017-10-24 |
Family
ID=60093670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610250271.1A Pending CN107289884A (en) | 2016-04-11 | 2016-04-11 | A kind of image measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107289884A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562228A (en) * | 2018-06-08 | 2018-09-21 | 昆山迈致治具科技有限公司 | A kind of automation follow-on test equipment |
-
2016
- 2016-04-11 CN CN201610250271.1A patent/CN107289884A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562228A (en) * | 2018-06-08 | 2018-09-21 | 昆山迈致治具科技有限公司 | A kind of automation follow-on test equipment |
| CN108562228B (en) * | 2018-06-08 | 2024-03-26 | 昆山迈致治具科技有限公司 | Automatic change continuous test equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171024 |