CN209979507U - Image measuring instrument - Google Patents
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- CN209979507U CN209979507U CN201920593808.3U CN201920593808U CN209979507U CN 209979507 U CN209979507 U CN 209979507U CN 201920593808 U CN201920593808 U CN 201920593808U CN 209979507 U CN209979507 U CN 209979507U
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- telecentric lens
- measuring instrument
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Abstract
The utility model discloses an image measuring instrument, camera lens adopt telecentric lens, and it includes the base, and the up end of base is provided with cargo platform, and base rear end fixed mounting has the stand, and fixed mounting has Z to position adjustment unit on the stand, and Z shoots the unit to the expansion end fixedly connected with telecentric lens of position adjustment unit, and the camera lens bottom that telecentric lens shot the unit is just right cargo platform's up end. The bilateral telecentric lens is adopted, so that a larger measurement visual field is ensured, a measured product can be placed at will during measurement, positioning is not needed, and the possibility of damaging the measured product in the measurement process in the prior art is avoided.
Description
Technical Field
The utility model belongs to the technical field of detecting instrument, in particular to image measuring instrument.
Background
The development of manufacturing industry is not independent of the development of detection instruments and technologies, and high-quality products not only require high-quality processing equipment, but also depend on the performance of the used measuring instrument equipment. The image measuring instrument is a measuring device based on machine vision, is suitable for the application field taking two-dimensional coordinate measurement as a target, and is widely applied to the industries of machinery, electronics, instruments, hardware, plastic and the like.
In the batch rapid detection of products such as precision workpieces, mobile phone glass, mobile phone shells and the like, the existing image measuring equipment has a small measuring visual field, a measuring platform needs to be moved during measurement, the measuring time of a single product is long, and the detection efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem one of providing an image measuring apparatu based on telecentric mirror head to the efficient realizes the detection of product.
In order to solve the technical problem, the embodiment of this application provides an image measuring instrument, and the camera lens adopts telecentric lens, image measuring instrument includes the base, the up end of base inlays and is equipped with cargo platform, base rear end fixed mounting has the stand, fixed mounting has Z to position adjustment unit on the stand, Z shoots the unit to the expansion end fixedly connected with telecentric lens of position adjustment unit, telecentric lens shoots the camera lens bottom of unit just right cargo platform's up end.
Preferably, the device further comprises a controller electrically connected with the Z-position adjusting unit and the telecentric lens shooting unit respectively; the top of the upright post is fixedly provided with an installation support frame, and the controller is arranged on the installation support frame.
Preferably, the telecentric lens shooting unit comprises a bilateral telecentric lens and a CCD camera fixedly connected with a camera interface of the bilateral telecentric lens.
Preferably, the total lens length of the double-side telecentric lens is more than 300mm and less than 340 mm.
Preferably, the Z-position adjusting unit includes a motor screw mechanism;
the telecentric lens shooting unit is fixedly connected with the sliding block of the motor screw mechanism through the supporting and connecting frame.
Preferably, the object carrying platform is made of transparent materials, a parallel light source is further arranged in the base, and a light emitting surface of the parallel light source is opposite to the lower end face of the object carrying platform.
Preferably, the collimated light source is a green collimated light source.
Preferably, the device further comprises a measurement triggering device electrically connected with the controller.
Preferably, the device further comprises a first protective cover fixed on the upper part of the upright post, an opening is arranged at the lower part of the upper first protective cover, the telecentric lens shooting unit is positioned in the first protective cover, and the bottom end of the lens of the telecentric lens shooting unit is opposite to the opening;
the vertical column is fixedly connected with the Z-direction position adjusting unit and the controller which are both positioned in the second protective housing.
Preferably, the adjustable foot margin is arranged below the base.
Compared with the prior art, one or more embodiments in the above scheme can have the following advantages or beneficial effects:
(1) the bilateral telecentric lens is adopted, so that a larger measurement visual field is ensured, the lens height is customized, and the size of the whole machine is greatly reduced under the condition of ensuring a large enough visual field.
(2) And because the telecentric lens with a large field of view is adopted, the measured product can be placed at will during measurement without positioning, and the possibility of damaging the measured product in the measurement process in the prior art is avoided.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the technology or prior art of the present application and are incorporated in and constitute a part of this specification. The drawings expressing the embodiments of the present application are used for explaining the technical solutions of the present application, and should not be construed as limiting the technical solutions of the present application.
Fig. 1 is a schematic structural diagram of an automatic image measuring apparatus according to an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of an automatic image measuring apparatus according to an embodiment of the present invention.
In the figure: 10-a base; 20-a carrier platform; 30-a pillar; a 40-Z position adjusting unit; 50-telecentric lens shooting unit; 501-double telecentric lens; 502-a CCD camera; 60-a controller; 70-measure trigger button; 80-a first protective enclosure; 90-a first protective enclosure; 901-front case; 902-a rear housing; 100-adjustable ground feet.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings and examples, so that how to apply the technical means to solve the technical problems of the present invention and achieve the corresponding technical effects can be fully understood and implemented. Each characteristic in this application embodiment and the embodiment can combine each other under the prerequisite of not conflicting, and the technical scheme who forms is all in the utility model discloses a within the scope of protection.
As shown in fig. 1, the image measuring instrument in the present application includes a base 10, an object carrying platform 20 is embedded in an upper end surface of the base 10, a column 30 is fixedly installed at a rear end of the base, a Z-position adjusting unit 40 is fixedly installed on the column 30, a telecentric lens shooting unit 50 is fixedly connected to a movable end of the Z-position adjusting unit 40, and a lens bottom end of the telecentric lens shooting unit 50 is directly opposite to the upper end surface of the object carrying platform 20;
the device further comprises a controller 60 electrically connected with the Z-position adjusting unit 40 and the telecentric lens shooting unit 50, as shown in fig. 1, a mounting support frame is fixedly arranged at the top of the upright column, and the controller 60 is mounted on the mounting support frame. The controller is used for controlling and driving the Z-direction position adjusting unit 40 to move, so that the telecentric lens shooting unit moves in the Z direction, and the focusing and shooting measurement of a product to be measured are realized.
For understanding the utility model discloses, the following image measuring instrument who uses this application carries out the process of measuring and briefly explains.
Placing a product to be measured on the object carrying platform 20, starting measurement, adjusting and driving the Z-direction position adjusting unit 40, enabling the movable end of the Z-direction position adjusting unit to move in the Z direction, driving the telecentric lens shooting unit 50 to move up and down for a certain distance, and shooting the product to be measured by the telecentric lens shooting unit;
and determining the focus position according to the definition of the image data shot by the telecentric lens shooting unit in the previous process and the movement position information of the Z-position adjusting unit, and adjusting the telecentric lens shooting unit to move to the focus position to realize the focusing of the detected product.
And then, operating a telecentric lens shooting unit to shoot the product to be measured at the focus position, acquiring image data required by measurement, and calculating to obtain size data of the product to be measured according to the image data to realize measurement of the product to be measured.
In a specific embodiment, as shown in fig. 1, the telecentric lens photographing unit 50 includes a double-sided telecentric lens 501 and a CCD camera 502 fixedly connected to a camera interface of the double-sided telecentric lens 501. Compared with the traditional measuring equipment, the measuring device has the advantages that the measuring view field is larger by adopting the bilateral telecentric lens, and the measuring platform does not need to be moved during measurement.
Further, a customized bilateral telecentric lens is adopted, and the total lens length is more than 300mm and less than 340 mm. For example, the total lens length of the bilateral telecentric lens is 330mm, so that the size of the whole machine can be greatly reduced compared with the existing equipment.
In one specific embodiment, as shown in fig. 1, the Z-position adjusting unit may employ a motor-screw mechanism; the telecentric lens shooting unit is fixedly connected with the sliding block of the motor screw mechanism through the supporting and connecting frame. The motor-screw mechanism belongs to a driving mechanism known in the art and is not described in detail herein.
In one embodiment, the objective platform 20 is made of a transparent material, and a parallel light source (not shown) is further disposed in the base 10, and a light emitting surface of the parallel light source faces a lower end surface of the objective platform. Specifically, the collimated light source may be a green collimated light source. The parallel light source is arranged, so that better illumination conditions can be provided for shooting, and high-quality shot images can be acquired.
In a specific embodiment, the device further comprises a measurement triggering device electrically connected with the controller. The measurement trigger device is used for receiving a measurement trigger signal, and the controller drives the motor screw mechanism to act according to the measurement start signal so as to facilitate measurement. The measurement trigger device can be triggered by a physical button, a photoelectric switch, a foot switch and the like. For example, as shown in fig. 2, the measurement triggering device is a measurement triggering button 70 provided on the front end surface of the base.
In a specific embodiment, as shown in fig. 1 and fig. 2, the device further includes a first protective cover 80 fixed on the upper portion of the column, an opening (not shown) is formed at the lower portion of the first protective cover, the telecentric lens shooting unit 50 is located in the first protective cover 80, and the bottom end of the lens of the telecentric lens shooting unit is opposite to the opening;
as shown in fig. 2, the apparatus further includes a second protective casing 90 formed by a front casing 901 and a rear casing 902, the front casing 901 and the rear casing 902 are respectively fixedly connected to the column, and the column 30, the Z-position adjustment unit 40 and the controller 60 are all located in the second protective casing 90.
In one particular embodiment, as shown in fig. 1 and 2, an adjustable foot 100 is also included, mounted below base 10. The device is used for supporting and leveling and is convenient for the use of an image measuring instrument.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides an image measuring instrument, its characterized in that, camera lens adopt telecentric lens, image measuring instrument includes the base, the up end of base inlays and is equipped with cargo platform, base rear end fixed mounting has the stand, fixed mounting has Z to position adjustment unit on the stand, the unit is shot to Z to position adjustment unit's expansion end fixedly connected with telecentric lens, telecentric lens shoots the camera lens bottom of unit just right cargo platform's up end.
2. The image measuring instrument of claim 1, further comprising a controller electrically connected to the Z-position adjusting unit and the telecentric lens photographing unit, respectively; the top of the upright post is fixedly provided with an installation support frame, and the controller is arranged on the installation support frame.
3. The image measuring instrument of claim 1, wherein the telecentric lens capturing unit comprises a double-sided telecentric lens and a CCD camera fixedly connected to a camera interface of the double-sided telecentric lens.
4. The image measuring instrument as claimed in claim 3, wherein the total lens length of the double-sided telecentric lens is greater than 300mm and less than 340 mm.
5. The image measuring instrument according to claim 1, wherein the Z-position adjusting unit includes a motor screw mechanism;
the telecentric lens shooting unit is fixedly connected with the sliding block of the motor screw mechanism through the supporting and connecting frame.
6. The image measuring instrument as claimed in claim 1, wherein the loading platform is made of transparent material, and a parallel light source is further disposed in the base, and a light emitting surface of the parallel light source faces a lower end surface of the loading platform.
7. The image measuring instrument as claimed in claim 6, wherein the collimated light source is a green collimated light source.
8. The image measuring instrument of claim 2, further comprising a measurement triggering device electrically connected to the controller.
9. The image measuring instrument as claimed in claim 2, further comprising a first protective housing fixed to the upper portion of the column, wherein an opening is formed in the lower portion of the first protective housing, the telecentric lens photographing unit is located in the first protective housing, and the bottom end of the telecentric lens photographing unit is opposite to the opening;
the vertical column is fixedly connected with the Z-direction position adjusting unit and the controller which are both positioned in the second protective housing.
10. The image measuring instrument according to any one of claims 1 to 9, further comprising an adjustable foot mounted below the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920593808.3U CN209979507U (en) | 2019-04-26 | 2019-04-26 | Image measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920593808.3U CN209979507U (en) | 2019-04-26 | 2019-04-26 | Image measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209979507U true CN209979507U (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920593808.3U Active CN209979507U (en) | 2019-04-26 | 2019-04-26 | Image measuring instrument |
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| CN (1) | CN209979507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113311559A (en) * | 2021-06-21 | 2021-08-27 | 北京计算机技术及应用研究所 | Mobile fixing device for large-mass imaging system |
-
2019
- 2019-04-26 CN CN201920593808.3U patent/CN209979507U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113311559A (en) * | 2021-06-21 | 2021-08-27 | 北京计算机技术及应用研究所 | Mobile fixing device for large-mass imaging system |
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Effective date of registration: 20220301 Address after: 272000 workshop in Haifu science and Technology Park, 300m south of the intersection of Chongwen Avenue and Hongji Road, Wangyin street, high tech Zone, Jining City, Shandong Province Patentee after: Jining Haifu Optical Technology Co.,Ltd. Address before: 516000 No. 501, building 7, Chongya apartment, Danshui Hongxing neighborhood committee, Huiyang District, Huizhou City, Guangdong Province Patentee before: Li Peideng |
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| TR01 | Transfer of patent right |