CN219934875U - Large-field image measuring instrument - Google Patents
Large-field image measuring instrument Download PDFInfo
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- CN219934875U CN219934875U CN202223499801.6U CN202223499801U CN219934875U CN 219934875 U CN219934875 U CN 219934875U CN 202223499801 U CN202223499801 U CN 202223499801U CN 219934875 U CN219934875 U CN 219934875U
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- light source
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- moving assembly
- fixing sleeve
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- 238000009434 installation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model discloses a large-view image measuring instrument, which relates to the technical field of image measuring instruments and comprises a control cabinet, wherein a camera bracket is arranged on the control cabinet, a first z-axis electric control moving assembly is arranged on the camera bracket, a mounting frame is arranged at the moving end of the first z-axis electric control moving assembly, and a CCD camera assembly and a second z-axis electric control moving assembly are arranged on the mounting frame; the CCD camera shooting assembly is provided with a telecentric lens extending downwards, the telecentric lens is provided with an outer circumferential surface, a light source fixing sleeve is arranged on the moving end of the second z-axis electric control moving assembly, the light source fixing sleeve is arranged on the outer circumferential surface of the telecentric lens in a sliding sleeve mode, an annular light source is arranged at the bottom side of the light source fixing sleeve, the first z-axis electric control moving assembly is controlled through a controller of the control cabinet, the height of the telecentric lens is controlled, the second z-axis electric control moving assembly is controlled through the controller of the control cabinet, and therefore the height of the annular light source is controlled, and the annular light source can be adjusted more conveniently.
Description
Technical Field
The utility model relates to the technical field of image measuring instruments, in particular to a large-vision image measuring instrument.
Background
With the rapid development of computer measurement technology, a measuring instrument for measuring the size of an object to be measured by means of the computer measurement technology should be operated. In general, a measuring instrument for measuring a size of an object to be measured is an image measuring instrument, and the image measuring instrument generally includes a measuring platform, a measuring lens, and a light source disposed at one end of the measuring lens and close to the measuring platform, wherein a surface image of the object to be measured is obtained through the measuring lens, and then the surface image is analyzed based on an image processing technology to obtain the size of the object to be measured.
The light source mainly comprises an annular light source which can be arranged around the measuring lens to illuminate the measured object, so that the measuring structure is more accurate. The structure is more like the Chinese utility model with the application number of 202222004227.6, namely, a double-light-source large-field image measuring instrument, an annular light source 60 is arranged at the objective end of a telecentric lens 30 through a support frame, when a coaxial light source 70 is used, central shafts among the telecentric lens 30, an optical glass workbench 11, the annular light source 60 and the coaxial light source 70 are positioned on the same vertical axis, and the distance between the telecentric lens 30 and a product is convenient to adjust by arranging a lifting mechanism 40, so that focusing of the lens is facilitated, and the measuring size of the product is more complete and accurate. However, the annular light source 60 is installed at the objective end of the telecentric lens 30 through a support frame, but when the distance between the telecentric lens 30 and the product is adjusted through the lifting mechanism 40, the annular light source 60 must follow movement; after adjusting the distance between the telecentric lens 30 and the product, when the height of the annular light source 60 needs to be adjusted due to the reason of measuring luminosity, the position of the installation frame can be the position of the installation frame for reinstalling the annular light source on the installation frame, so that the convenience is low, and the reinstallation is easy to cause the damage of the annular light source for staff with poor technical experience, so that more convenient structural design is necessary for the position transformation of the annular light source.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a technical scheme capable of solving the problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the large-view image measuring instrument comprises a control cabinet, wherein a camera shooting support is arranged on the control cabinet, a first z-axis electric control moving assembly is arranged on the camera shooting support, a mounting frame is arranged at the moving end of the first z-axis electric control moving assembly, and a CCD camera shooting assembly and a second z-axis electric control moving assembly are arranged on the mounting frame; the CCD camera assembly is provided with a telecentric lens which extends downwards, and the telecentric lens is provided with a cylindrical outer circumferential surface; the movable end of the second z-axis electric control movable assembly is provided with a light source fixing sleeve, the light source fixing sleeve is sleeved on the outer circumferential surface of the telecentric lens and is arranged in a vertically sliding mode on the outer circumferential surface, the bottom side of the light source fixing sleeve is provided with an annular light source, and the central shafts among the light source fixing sleeve, the annular light source and the telecentric lens are located on the same vertical axis.
As a further scheme of the utility model: the first z-axis electric control moving assembly comprises a motor screw rod assembly which is vertically arranged, and the mounting frame is arranged on a sliding block of the motor screw rod assembly.
As a further scheme of the utility model: the second z-axis electric control moving assembly comprises a motor screw rod assembly which is vertically arranged, a sleeve adapter plate is connected to a sliding block of the motor screw rod assembly, and a light source fixing sleeve is connected to the sleeve adapter plate.
As a further scheme of the utility model: the light source fixing sleeve is characterized in that a plurality of light holes communicated with the outer side are formed in the inner circumferential surface of the light source fixing sleeve, and the light holes are arranged at intervals along the axial direction of the light source fixing sleeve.
As a further scheme of the utility model: the control cabinet is also provided with a workbench, the workbench is positioned below the telecentric lens, and the workbench is movably arranged on the control cabinet through an x-axis moving assembly and a y-axis moving assembly.
As a further scheme of the utility model: the X-axis moving assembly comprises an X-axis motor screw rod assembly arranged on the control cabinet along the X-axis, the Y-axis moving assembly comprises a Y-axis motor screw rod assembly arranged on a sliding block of the X-axis motor screw rod assembly along the Y-axis, and the workbench is arranged on the sliding block of the Y-axis motor screw rod assembly.
Compared with the prior art, the utility model has the following beneficial effects:
the first z-axis electric control moving assembly is controlled by the controller of the control cabinet, so that the height of the telecentric lens is controlled, the second z-axis electric control moving assembly is controlled by the controller of the control cabinet, and the height of the annular light source is controlled, so that the annular light source can be adjusted more conveniently.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a structural perspective view of a first z-axis electrically controlled moving assembly and a second z-axis electrically controlled moving assembly in the present utility model, wherein a mounting frame is not connected with a slider of the first z-axis electrically controlled moving assembly.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, a large-view image measuring instrument comprises a control cabinet 1, wherein a camera bracket 2 is installed on the control cabinet 1, a first z-axis electric control moving assembly 3 is arranged on the camera bracket 2, a mounting frame 4 is installed on the moving end of the first z-axis electric control moving assembly 3, and a CCD camera assembly 5 and a second z-axis electric control moving assembly 6 are installed on the mounting frame 4; the CCD camera assembly 5 has a telecentric lens 501 protruding downward, the telecentric lens 501 having a cylindrical outer circumferential surface. The movable end of the second z-axis electric control movable assembly 6 is provided with a light source fixing sleeve 7, the light source fixing sleeve 7 is sleeved on the outer circumferential surface of the telecentric lens 501 and is arranged in a vertically sliding mode on the outer circumferential surface, the bottom side of the light source fixing sleeve 7 is provided with an annular light source 8, and the central shafts among the light source fixing sleeve 7, the annular light source 8 and the telecentric lens 501 are in the same vertical axis. The first z-axis electric control moving assembly 3 is controlled by the controller of the control cabinet 1, so that the height of the telecentric lens 501 is controlled, the second z-axis electric control moving assembly 6 is controlled by the controller of the control cabinet 1, so that the height of the annular light source 8 is controlled, and the annular light source 8 can be adjusted more conveniently.
The light source fixing sleeve 7 is matched with the cylindrical outer circumferential surface of the telecentric lens 501 and is used for guiding the lifting of the annular light source 8 to avoid collision between the annular light source 8 and the telecentric lens 501.
In the embodiment of the utility model, the first z-axis electric control moving assembly 3 comprises a vertically arranged motor screw rod assembly, and the mounting frame 4 is arranged on a sliding block of the motor screw rod assembly. The second z-axis electric control moving assembly 6 comprises a vertically arranged motor screw rod assembly, a sleeve adapter plate 11 is connected to a sliding block of the motor screw rod assembly, and the light source fixing sleeve 7 is connected to the sleeve adapter plate 11.
Preferably, a plurality of light holes 12 communicated with the outside are formed on the inner circumferential surface of the light source fixing sleeve 7, and the light holes 12 are arranged at intervals along the axial direction of the light source fixing sleeve 7.
The control cabinet 1 is further provided with a workbench 10, the workbench 10 is located below the telecentric lens 501, and the workbench 10 is movably arranged on the control cabinet 1 through an x-axis moving component and a y-axis moving component. The X-axis moving assembly comprises an X-axis motor screw rod assembly arranged on the control cabinet along the X-axis, the Y-axis moving assembly comprises a Y-axis motor screw rod assembly arranged on a sliding block of the X-axis motor screw rod assembly along the Y-axis, and the workbench is arranged on the sliding block of the Y-axis motor screw rod assembly.
In the embodiment of the present utility model, the first z-axis electronic control moving assembly 3 further includes a first position sensor 301 for identifying the position of the slider of the first z-axis electronic control moving assembly 3, so as to obtain the lifting position of the CCD camera assembly. The second z-axis electrically controlled moving assembly 6 further comprises a second position sensor 601 for identifying the position of the slide of the second z-axis electrically controlled moving assembly 6, so as to obtain the lifting position of the coaxial light source.
After the measured object is placed on the workbench, the stroke of the annular light source which can be lowered by the second z-axis electric control moving assembly is set to be S1 when the CCD camera assembly is positioned at the lowest point of the lowering stroke of the CCD camera assembly, and the safety stroke of the annular light source which can be lowered is set to be L1=S2, wherein S1 is more than S2.
The descending stroke of the CCD camera assembly is identified through the first position sensor, so that a stroke data signal is provided for the controller in real time, the controller obtains the distance X1 between the current position of the CCD camera assembly and the lowest point of the descending stroke, and accordingly obtains the safety stroke L1=S2+X1 of the annular light source, and the annular light source can descend to be lower under the safety condition when the CCD camera assembly is not located at the lowest point of the descending stroke.
Similarly, when the annular light source is located at the lowest point of the descending stroke, the stroke of the first z-axis electric control moving component capable of descending the CCD camera component is S3, and the safety stroke of the CCD camera component capable of descending is L2=S4, wherein S3 is greater than S4.
The descending stroke of the coaxial light source is identified through the second position sensor, so that a stroke data signal is provided for the controller in real time, the controller obtains the distance X2 between the current position of the coaxial light source and the lowest point of the descending stroke, and accordingly obtains the safety stroke L2=S4+X2 of the descending of the CCD camera assembly, so that the CCD camera assembly can descend lower under the condition of safety (the coaxial light source is not collided with a workbench normally) when the coaxial light source is not located at the lowest point of the descending stroke.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The large-view image measuring instrument is characterized by comprising a control cabinet, wherein a camera shooting support is arranged on the control cabinet, a first z-axis electric control moving assembly is arranged on the camera shooting support, a mounting frame is arranged at the moving end of the first z-axis electric control moving assembly, and a CCD camera shooting assembly and a second z-axis electric control moving assembly are arranged on the mounting frame;
the CCD camera assembly is provided with a telecentric lens which extends downwards, and the telecentric lens is provided with a cylindrical outer circumferential surface;
the movable end of the second z-axis electric control movable assembly is provided with a light source fixing sleeve, the light source fixing sleeve is sleeved on the outer circumferential surface of the telecentric lens and is arranged in a vertically sliding mode on the outer circumferential surface, the bottom side of the light source fixing sleeve is provided with an annular light source, and the central shafts among the light source fixing sleeve, the annular light source and the telecentric lens are located on the same vertical axis.
2. The large field of view image measuring instrument of claim 1, wherein the first z-axis electrically controlled moving assembly comprises a vertically disposed motor lead screw assembly, and the mounting bracket is mounted on a slider of the motor lead screw assembly.
3. The large-field image measuring instrument according to claim 1, wherein the second z-axis electric control moving assembly comprises a vertically arranged motor screw assembly, a sleeve adapter plate is connected to a sliding block of the motor screw assembly, and the light source fixing sleeve is connected to the sleeve adapter plate.
4. The large-field image measuring instrument as claimed in claim 1, wherein a plurality of light holes communicated with the outside are formed in the inner circumferential surface of the light source fixing sleeve, and the light holes are arranged at intervals along the axial direction of the light source fixing sleeve.
5. The large field of view image measuring instrument as defined in claim 1, wherein a table is further provided on the control cabinet, the table being positioned below the telecentric lens, the table being movably disposed on the control cabinet by an x-axis moving assembly and a y-axis moving assembly.
6. The large field of view image measuring instrument of claim 5, wherein the x-axis moving assembly comprises an x-axis motor lead screw assembly disposed on the control cabinet along the x-axis, the y-axis moving assembly comprises a y-axis motor lead screw assembly disposed on a slider of the x-axis motor lead screw assembly along the y-axis, and the table is mounted on the slider of the y-axis motor lead screw assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223499801.6U CN219934875U (en) | 2022-12-23 | 2022-12-23 | Large-field image measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223499801.6U CN219934875U (en) | 2022-12-23 | 2022-12-23 | Large-field image measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219934875U true CN219934875U (en) | 2023-10-31 |
Family
ID=88497512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223499801.6U Active CN219934875U (en) | 2022-12-23 | 2022-12-23 | Large-field image measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219934875U (en) |
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2022
- 2022-12-23 CN CN202223499801.6U patent/CN219934875U/en active Active
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