Image detection imaging device and image detection equipment
Technical Field
The utility model relates to a machine vision equipment technical field, more specifically say, relate to an image detection image device and image detection equipment.
Background
In the field of machine vision, an image detection device is a relatively common detection device. The principle of the image detection device is to detect the defects of the tested product by acquiring the image of the tested product and then analyzing the image. In the surface quality detection of the detected product, the image detection device needs to acquire each surface image of the detected product, and detect the surface defect of the detected product by analyzing the surface image.
A bar device refers to a plate-shaped device, and generally has six faces, such as a bar phone, ipad, MP3, and the like. In the process of quality inspection, the surface quality inspection of the straight plate equipment is an indispensable link. In the detection process, images of all surfaces of the straight plate equipment need to be acquired. In conventional methods, image acquisition is typically performed on each surface of a bar-plate device, one by one, using a single camera. For example, the operator changes the placement state of the bar device so that the respective surfaces of the bar device are under the camera lens one by one to perform the acquisition of the surface image. For another example, the camera is disposed on a manipulator capable of moving in space, and the manipulator drives the camera to move one by one to a position opposite to each surface of the straight plate device to acquire the surface image. In the process of acquiring the surface images of the bar device, the acquisition of the surface images of the bar device is performed in series, and the efficiency is low.
In order to improve efficiency, corresponding cameras are generally arranged on all surfaces of the straight-plate device at present, so as to obtain images of all surfaces of the straight-plate device at the same time. The mode of acquiring the images of the surfaces of the bar plate device in parallel can improve the efficiency, but more cameras need to be equipped, which undoubtedly increases the cost of the image detection device.
Therefore, the contradiction between cost and efficiency exists in the acquisition of each surface image of the straight plate equipment by the conventional image detection equipment, and the use and popularization of the image detection equipment are seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides an image detection image device to alleviate image detection equipment and acquire the cost that exists and the contradiction between the efficiency to each surface image of bar equipment, and then improve the efficiency that acquires to each surface image of bar equipment when reducing image detection equipment cost.
In order to solve the technical problem, the utility model provides a following technical scheme:
an image sensing imaging apparatus comprising:
an image acquisition device;
the workbench is positioned below the image acquisition equipment, an image acquisition area corresponding to the image acquisition equipment is arranged on the workbench, and the image acquisition area is provided with a measured object containing area for placing the straight plate equipment and a reflector placing area positioned at the periphery of the measured object containing area;
set up in the district is placed to the speculum, and be used for the reflection at least one side speculum of the side of straight board equipment, the side speculum with the side of straight board equipment is just right one by one, just the mirror surface of side speculum with contained angle between the mesa of workstation is 135, the side speculum with the speculum is placed the one end that the district links to each other and is the bottom, with the other end that the bottom is relative is the top, the side speculum certainly the bottom to in the top direction, the side speculum is apart from the horizontal distance that the measured object held the district increases gradually.
Preferably, in the image detection and imaging apparatus, the number of the side mirrors is equal to the number of the sides of the bar device.
Preferably, in the image detection and imaging device, the number of the side mirrors is two, and the side mirrors are oppositely arranged on two sides of the object holding area.
Preferably, in the image detection imaging device, the image detection imaging device further includes a conveying table disposed on the workbench and used for conveying the straight plate device along a set direction, a supporting table surface of the conveying table serves as the object to be measured holding area, and the two side reflectors are disposed on two sides of the conveying table respectively.
Preferably, in the image detecting and imaging apparatus, the image detecting and imaging apparatus further includes a support plate disposed on the workbench and used for holding the straight device, a surface of the support plate is used as a holding area for a measured object, and the support plate is rotatably disposed on the workbench.
Preferably, in the image detection imaging apparatus, the image detection imaging apparatus further includes an optical path adjusting device, and the optical path adjusting device includes:
a mounting bracket mounted between the image acquisition device and the table;
the first top surface reflector and the second top surface reflector are arranged on the mounting frame in parallel, the mirror surfaces of the first top surface reflector and the second top surface reflector are opposite, an included angle between the mirror surface of the first top surface reflector and the table surface of the workbench is 45 degrees, and the included angle meets the condition that L1 is L2+ L3, wherein L1 is the vertical distance between the image acquisition equipment and the plane where the workbench is located; l2 is the vertical distance of the image acquisition device from the top surface of the bar device; l3 is the horizontal distance between the first top mirror and the second top mirror.
Preferably, in the image detecting and imaging apparatus, the mounting frame includes:
a track;
the first mounting part is used for mounting the first top surface reflector, and the second mounting part is used for mounting the second top surface reflector, and the first mounting part and the second mounting part are in sliding fit with the track; or,
the mounting bracket includes:
a telescoping member;
the setting is in the first installation department and the second installation department of two flexible ends of extensible member, first installation department with first top surface speculum is fixed links to each other, the second installation department with second top surface speculum is fixed links to each other.
Preferably, in the image detection and imaging device, a guide rail is further disposed on the table, and the side reflecting mirror is slidably disposed in the guide rail to change a distance from the side reflecting mirror to the object holding area.
Preferably, in the above image detection imaging apparatus, the image acquisition device is a line camera.
An image detection apparatus having the image detection imaging device as described in any of the above.
The utility model provides an image detection image device has following beneficial effect: the image acquisition device is capable of acquiring images within an image acquisition zone of a table located therebelow. The image acquisition district holds the district and the district is placed to the speculum including the measured object, and the measured object holds the district and is used for placing straight board equipment, and the speculum is placed the district and is used for placing the side speculum, and the side speculum reflects the side of straight board equipment to the camera lens of image acquisition equipment, and then makes image acquisition equipment can obtain two faces of straight board equipment at least. It can be seen that the utility model provides an image detection imaging device can acquire equipment with less image, acquires the surface image of two at least faces of bar equipment simultaneously, reduces whole image detection equipment's manufacturing cost when can raising the efficiency.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first image detection imaging apparatus according to an embodiment of the present invention;
FIG. 2 is a right side view of FIG. 1;
fig. 3 is a schematic structural diagram of a second image detection and imaging apparatus provided in an embodiment of the present invention;
FIG. 4 is a sectional view taken along line A-A of FIG. 3;
fig. 5 is a schematic structural diagram of a third image detecting and imaging apparatus provided in the embodiment of the present invention;
FIG. 6 is a sectional view taken along line B-B of FIG. 5;
fig. 7 is a schematic structural diagram of a fourth image detection and imaging apparatus provided in the embodiment of the present invention;
fig. 8 is a schematic structural diagram of a fifth image detecting and imaging apparatus according to an embodiment of the present invention.
In the above FIGS. 1-8:
the device comprises a light source 1, an image acquisition device 2, a straight plate device 3, a side reflector 4, a side reflector 5, a workbench 6, a measured object containing area 61, a reflector placing area 62, a conveying table 7, a supporting disc 8, a first top reflector 9, a second top reflector 10, a sliding block 11 and a sliding block 12.
Detailed Description
The embodiment of the utility model provides an image detection image device has alleviated image detection equipment and has acquireed the cost that exists and the contradiction between the efficiency to each surface image of bar equipment, and then improves the efficiency of acquireing to each surface image of bar equipment when can reducing image detection equipment cost.
In order to make those skilled in the art better understand the technical solution of the embodiments of the present invention and make the above objects, features and advantages of the embodiments of the present invention more obvious and understandable, the following description of the technical solution of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
Referring to fig. 1-2, fig. 1 shows a first structure of an image detecting and imaging apparatus according to an embodiment of the present invention; fig. 2 is a right side view of fig. 1. The image detection imaging apparatus shown in fig. 1 and 2 includes an image pickup device 2, a light source 1, a stage 6, and a side mirror. Wherein the image acquisition device 2 and the light source 1 are both located above the work table 6, and the light source 1 illuminates the image taking of the image acquisition device 2. The embodiment of the utility model provides an in, image acquisition equipment 2 can be linear array camera, also can be area array camera, the embodiment of the utility model provides a do not limit the concrete kind of image acquisition equipment.
The table 6 is located below the lens pair of the image pickup device 2. The table 6 is provided with an image acquisition area opposite the image acquisition device 2, and the image acquisition device 2 is capable of acquiring an image of an object within the image acquisition area. The image acquisition area comprises a measured object containing area 61 and a reflector containing area 62, and the reflector containing area 62 is positioned on the periphery of the measured object containing area 61 and used for providing space for installing the side reflectors. The object holding area 61 is used for holding an object to be detected, i.e., a bar device 3, such as a bar phone. The side mirrors are placed in the mirror placing area 62 and correspond one-to-one to the sides of the bar device 3. In the embodiment of the present invention, the side reflector is at least one, and is used for reflecting the side of the straight plate device 3.
The embodiment of the utility model provides an in, contained angle between the mirror surface of side reflection mirror and the mesa of workstation 6 is 135, and the side reflection mirror is placed the one end that district 62 links to each other with the speculum and is the bottom, with the other end that the bottom is relative is the top, and the side reflection mirror is from the bottom to the top direction, and the side reflection mirror is apart from the horizontal distance crescent of measured object holding area 61. In this case the sides of the bar device 3 can be imaged on the table 6, i.e. corresponding to the side images being reflected in the image acquisition area. At this time, the image acquisition apparatus 2 can acquire the side surface corresponding to the side mirror and the top surface of the bar apparatus 3, that is, can acquire both surfaces of the bar apparatus 3 (the top surface of the bar apparatus 3 and the side surface of the bar apparatus 3 reflected by at least one side mirror) at the same time.
The utility model provides an image detection image device has following beneficial effect: the image acquisition device is capable of acquiring images within an image acquisition zone of a table located therebelow. The image acquisition area comprises a measured object containing area 61 and a reflector containing area 62, the measured object containing area 61 is used for containing the straight plate device 3, the reflector containing area 62 is used for containing a side reflector, the side reflector reflects the side surface of the straight plate device 3 into the lens of the image acquisition device 2, and then the image acquisition device 2 can at least obtain two surfaces of the straight plate device 3. It can be seen that the utility model provides an image detection imaging device can acquire equipment 2 with less image, acquires the surface image of two at least faces of bar equipment 3 simultaneously, reduces whole image detection equipment's manufacturing cost when can raising the efficiency.
The embodiment of the utility model provides a do not restrict the quantity of side reflector. Preferably, the number of the side mirrors is equal to the number of the sides of the straight-plate device 3, and the side mirrors correspond to the sides of the straight-plate device 3 one by one. In this case, the image pickup apparatus 2 can pick up images of the top surface and all the side surfaces of the bar apparatus 3, and the image pickup efficiency can be further improved.
Referring to fig. 2, the number of the side mirrors may be two, that is, the side mirror 4 and the side mirror 5. The side reflecting mirror 4 and the side reflecting mirror 5 are oppositely arranged at two sides of the object holding area 61, namely, the side reflecting mirror 4 and the side reflecting mirror 5 are respectively arranged at two opposite sides of the straight plate device 3 and used for reflecting images of two opposite sides of the straight plate device 3. Referring to fig. 3 and fig. 4, in an actual working process, in order to improve the detection efficiency of the straight plate device 3, the image detection and imaging apparatus provided by the embodiment of the present invention further includes a conveying table 7 disposed on the working table 6, and the conveying table 7 is used for conveying the straight plate device 3 along a set direction, so as to implement online detection. The supporting table surface of the conveying table 7 is a measured object holding area 61, and the two side reflectors (the side reflector 4 and the side reflector 5) are respectively positioned at two sides of the conveying table 7. In the process of detecting and imaging, the conveying table 7 drives the plurality of straight plate devices 3 positioned thereon to move, and the straight plate devices sequentially pass through the area between the side reflector 4 and the side reflector 5, so that the images are acquired. In this case, the image detection imaging apparatus can simultaneously acquire images of the three surfaces of the bar device 3, and the efficiency of image acquisition can be greatly improved.
Referring to fig. 5 and fig. 6, fig. 5 is a schematic structural diagram of a third image detecting and imaging apparatus according to an embodiment of the present invention, and fig. 6 is a sectional view taken along line B-B of fig. 5. The image sensing image forming apparatus shown in fig. 5 and 6 further includes a support plate 8. The supporting disk 8 is rotatably arranged on the workbench 6 and used for containing the straight plate equipment 3. The disc surface of the supporting disc 8 is a measured object holding area 61. The setting of supporting disk 8 can drive the straight board equipment 3 that is located it and rotate and then make the different side of straight board equipment 3 relative with the side speculum, and then realize that image acquisition equipment 2 acquires the image under each state of straight board equipment 3. The supporting plate 8 is changed in position to acquire the whole side image of the straight plate device 3, so that the image acquisition efficiency and the device cost of the image detection imaging device are further improved.
The utility model discloses the people is realizing the utility model discloses the in-process of creation discovers, and the side image that the side of straight board equipment 3 formed after being reflected by the side reflector varies with straight board equipment 3 top surface optical distance, and the optical distance difference is far greater than imaging system's depth of field, and the definition at the different positions of image that this kind of condition can lead to image acquisition equipment 2 to acquire is different, and the image part that corresponds in the 3 sides of straight board equipment is different with the image part definition that straight board equipment 3 top surface corresponds promptly. This affects the result of the quality inspection of the bar device 3. To solve this problem, please refer to fig. 7, fig. 7 shows a fourth structural diagram of an image detecting and imaging apparatus according to an embodiment of the present invention. The image detection imaging device shown in fig. 7 further includes an optical path adjusting device, the optical path adjusting device includes a mounting rack, a first top surface reflecting mirror 9 and a second top surface reflecting mirror 10, wherein the mounting rack is installed between the image acquisition device 2 and the workbench 6, the first top surface reflecting mirror 9 and the second top surface reflecting mirror 10 are installed on the mounting rack, the first top surface reflecting mirror 9 and the second top surface reflecting mirror 10 are arranged in parallel, and the mirror surfaces of the first top surface reflecting mirror 9 and the second top surface reflecting mirror 10 are opposite. An included angle between the mirror surface of the first top surface reflector 9 and the table top of the worktable 6 is 45 degrees, and L1 is L2+ L3, wherein L1 is the vertical distance from the image acquisition device 2 to the plane of the worktable 6; l2 is the vertical distance of the image acquisition device 2 from the top surface of the bar device 3; l3 is the horizontal distance between the first top mirror 9 and the second top mirror 10. To more clearly illustrate the relationship between L1, L2, and L3, the following description is made in conjunction with fig. 7. Referring again to fig. 7, the side mirrors 4 or 5 are angled at 45 ° to the table 6, which results in the side image of the bar device 3 being in the plane of the table 6. At this time, the distance between the image acquisition device 2 and the side surface is a, the distance between the image acquisition device 2 and the top surface of the straight plate device 3 is b + c, and as can be seen from fig. 7, the optical path difference between the side surface and the top surface of the straight plate device 3 needs to be adjusted, so that the two optical paths are equal, therefore, the included angle between the first top surface reflecting mirror 9 and the second top surface reflecting mirror 10 and the table top of the worktable 6 is 45 °, then the horizontal distance d between the first top surface reflecting mirror 9 and the second top surface reflecting mirror 10 needs to be adjusted, so that a is b + c + d, and a is the vertical distance between the image acquisition device 2 and the plane where the worktable 6 is located, namely L1; as can also be seen from fig. 7, b + c is the vertical distance of the image acquisition device 2 from the top surface of the bar device 3, i.e., L1; d is a horizontal distance between the first top mirror 9 and the second top mirror 10, i.e., L3. It should be noted that the table top of the working table 6 provided in the embodiment of the present invention is a horizontal plane.
In the actual working process, the thicknesses of different types of bar devices 3 are different, for example, the thicknesses of different models of tablet phones are different. In this case, in order to realize aplanatic imaging of the top surface and the side surface of the bar device 3, it is necessary to adjust the horizontal distance between the first top mirror 9 and the second top mirror 10. It is usually the case that the first top mirror 9 and the second top mirror 10 are fixed on respective fixed bases, and it is difficult to adapt to image acquisition of the bar devices 3 with different thicknesses. For this reason, it is necessary to redesign the respective installation bases of the first top surface mirror 9 and the second top surface mirror 10, and further, to change the horizontal distance between the first top surface mirror 9 and the second top surface mirror 10, the redesign is cumbersome, and it is still impossible to cope with the kind change of the bar device 3. In order to solve the problem, in the embodiment of the present invention, the mounting rack of the optical path adjusting device includes a rail, a first mounting portion and a second mounting portion, the first mounting portion is used for fixing the first top surface reflector 9, the second mounting portion is used for fixing the second top surface reflector 10, and the first mounting portion and the second mounting portion are in sliding fit with the rail. The distance between the first and second mounting portions is changed by adjusting the sliding movement of the first and second mounting portions, and finally the purpose of changing the distance between the first and second top mirrors 9 and 10 is achieved. In actual operation, the relative position relationship between the second top surface reflecting mirror 10 and the image capturing device 2 is usually fixed, and in order to improve the adjustment efficiency, it is preferable to adjust the first top surface reflecting mirror 9 to adjust the distance between the first top surface reflecting mirror 9 and the second top surface reflecting mirror 10.
The embodiment of the present invention provides a mounting rack, which is not limited to the above structure. The embodiment of the utility model provides a concrete structure's mounting bracket is still provided, the mounting bracket include extensible member, first installation department and second installation department, first installation department is used for fixed first top surface speculum, the second installation department is used for fixed second top surface speculum. The first installation part and the second installation part are respectively fixed at two telescopic ends of the telescopic piece. The distance between the first mounting part and the second mounting part can be changed through the expansion and contraction of the expansion piece, and the horizontal distance between the first top surface reflector and the second top surface reflector is further changed. The positions of the rails and the telescopic members are set so as not to affect the image capturing by the image capturing apparatus 2. The embodiment of the utility model provides a do not restrict concrete mounted position and mode between them.
The embodiment of the utility model provides an among the image detection image device, still be provided with the guide rail on workstation 6, side reflector sets up with changing the distance between side reflector and the measured object splendid attire district 61 in the guide rail with sliding. The area of side reflector and measured object holding area 61 can be adjusted to this kind of mode, and then can adapt to placing of different volume size bar equipment 3. As shown in fig. 8, fig. 8 is a schematic diagram of a fifth structure of an image detecting and imaging apparatus according to an embodiment of the present invention. In the image detection imaging apparatus shown in fig. 8, the side reflecting mirror 4 is slidably disposed on the worktable 6 through the slider 12, the side reflecting mirror 5 is slidably disposed on the worktable 6 through the slider 11, and the distance between the two can be changed by sliding the slider 12 and the slider 11 on the worktable 6, so as to indirectly increase the area of the object holding area 61, and further indirectly adjust the area of the object holding area 61 to adapt to the straight plate devices 3 of different sizes.
Based on the embodiment of the utility model provides an image detection image device, the embodiment of the utility model provides a still provide an image detection equipment, image detection equipment have and have the utility model provides an arbitrary one in the above-mentioned content image detection image device.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.