TWM645606U - Device for capturing images of inner and outer surfaces of object - Google Patents

Abstract

A device for capturing images of the inner and outer surfaces of objects, including: a base; an annular material tray that is transparent and rotatable; a transverse imaging unit with a transverse camera and a camera relative to the transverse camera Horizontal light source; an upper imaging unit, having an upper camera and an upper light source; a lower imaging unit, having a lower camera and a lower light source; and an oblique imaging unit, located on the base, having an oblique camera and a bottom Light source; wherein, the horizontal imaging unit, the upper imaging unit, and the lower imaging unit obtain images of the side, upper surface, and downward surface of the object to be imaged; wherein, the object to be imaged is In the case of annular or up-and-down penetration, the oblique camera acquires images of part of the inner surface of the object to be imaged.

Description

Device for taking images of the inner and outer surfaces of objects

This creation is related to the technology of using cameras to capture images of objects, specifically a device that captures images of the inner and outer surfaces of objects.

my country's patent No. I690704 discloses a columnar component appearance inspection equipment. This previous technology mainly detects the appearance of columnar components. It mainly uses multiple imaging devices to capture various angles of the columnar components. image, thereby achieving the effect of appearance inspection of columnar components.

However, although multiple imaging devices were set up in this case to capture images at various angles, since they were mainly used to capture the external contour, they were unable to capture the internal threads of the nut. Moreover, if you want to take an image of the thread inside the nut, you cannot take the image directly from above when the nut is lying flat, otherwise the image of the thread will still not be obtained. Therefore, in the aforementioned cases, it is not possible to capture images of the internal surfaces of hollow objects or ring-shaped objects for inspection.

The main purpose of this creation is to propose a device for imaging the inner and outer surfaces of objects. In addition to taking images of the top, bottom and side contours of the object to be imaged, it can also take images of the object to be imaged. The hollow inner surface of the object is imaged for subsequent inspection.

In order to achieve the above purpose, this invention proposes a device for taking images of the inner and outer surfaces of objects, which includes: a base; and an annular material tray, which is rotatably installed on the base for an image to be taken. Objects are placed on it, and the annular material tray is transparent and allows light to pass through to illuminate or capture the object to be imaged; a horizontal imaging unit is provided on the base and has a horizontal camera and Relative to a lateral light source of the lateral camera, one of the lateral camera and the lateral light source is located inside the ring of the annular material tray, and the other is located outside the ring of the annular material tray; one is taken from above The imaging unit is located on the base and has an upper camera and an upper light source. The upper camera and the upper light source are both located above the annular material tray; a lower imaging unit is located on the base and has a lower camera and A lower light source, the lower camera and the lower light source are located below the annular material tray; and an oblique imaging unit is provided on the base and has an oblique camera and a bottom light source, the oblique camera is located opposite to the ring Above the annular material tray, the object to be imaged on the annular material tray is imaged in a direction that is not perpendicular to the surface of the annular material tray, and the bottom light source is located below the annular material tray; wherein, the transverse imaging The imaging unit at least acquires the side profile of the object to be imaged, the upper imaging unit at least acquires the upward surface image of the object to be imaged, and the lower imaging unit at least acquires the downward surface image of the object to be imaged, The oblique imaging unit obtains at least the contours of the top and side surfaces of the object to be imaged; wherein, when the object to be imaged is annular or vertically penetrating and is placed on the annular material tray, the bottom light source The light is irradiated and passes through the interior of the object to be imaged, and the oblique imaging unit obtains an image of at least part of the inner surface of the object to be imaged.

With this, in addition to taking images of the top surface, bottom surface, and side profile of the object to be imaged, this creation can also image the hollow inner surface of the object to be imaged for subsequent inspection.

Another purpose of this invention is to provide a device for imaging the inner and outer surfaces of an object, which can image the entire circumference of the object to be imaged.

Preferably, in addition to the above technical features, the present invention further includes a circumferential imaging unit located on the base. The circumferential imaging unit has at least four movable arms equally angularly distributed and a circumferential light source, each of which has a movable arm. The arm has a camera and a reflector. The reflectors on the at least four movable arms are equiangularly distributed around the object to be captured, and the cameras on each movable arm respectively reflect the reflections. Mirror imaging is used to obtain the peripheral image of the object to be imaged.

In this way, the camera and the reflector on the movable arms can be used to achieve the effect of imaging the entire circumference of the object to be imaged.

In order to explain in detail the technical characteristics of this invention, the following preferred embodiments are cited and explained with drawings, among which:

As shown in Figures 1 to 8, the present invention proposes a device 10 for taking images of the inner and outer surfaces of an object through a first preferred embodiment, which mainly consists of a base 11, an annular material tray 21, and a It consists of a horizontal imaging unit 31, an upper imaging unit 41, a lower imaging unit 51 and an oblique imaging unit 61, in which:

The base 11 is a platform on a machine in the first embodiment.

The annular material tray 21 is rotatably provided on the base 11 for placing an object 99 to be imaged. The annular material tray 21 is transparent. This transparent design allows light or a camera to pass through. The object 99 to be imaged is irradiated or imaged below the annular material tray 21 . In the first embodiment, the annular material tray 21 can be placed on a rotating table 22 in practice and driven to rotate by the rotating table 22 .

The horizontal imaging unit 31 is located on the base 11 and has a horizontal camera 32 and a horizontal light source 34 relative to the horizontal camera 32. The horizontal camera 32 is located outside the ring of the annular material tray 21. The light source 34 is located in the ring of the annular material tray 21 . In this first embodiment, both the horizontal camera 32 and the horizontal light source 34 are driven by a drive unit 39 to move laterally and up and down. Each drive unit 39 can be composed of more than two drive motors and screws.

The upper imaging unit 41 is located on the base 11 and has an upper camera 42 and an upper light source 44 . Both the upper camera 42 and the upper light source 44 are located above the annular material tray 21 . In the first embodiment, the upper camera 42 and the upper light source 44 of the upper imaging unit 41 are driven to move laterally and up and down by an upper driving unit 49. This upper driving unit 49 can be more than two The drive motor is composed of a screw. In addition, the upper imaging unit 41 can also be provided with a first backlight 46 as needed, and is located below the annular material tray 21 to increase the outline imaging mode when viewed from above.

The lower imaging unit 51 is located on the base 11 and has a lower camera 52 and a lower light source 54 . Both the lower camera 52 and the lower light source 54 are located below the annular material tray 21 . In this first embodiment, the lower camera 52 and the lower light source 54 of the lower imaging unit 51 are driven by a lower drive unit 59 to move laterally and up and down. This lower drive unit 59 can be driven by more than two drives. The motor is composed of a screw. The lower imaging unit 51 can also be provided with a second backlight 56 as needed, which is located above the annular material tray 21 to increase the contour imaging mode when looking up.

The oblique imaging unit 61 is located on the base 11 and has an oblique camera 62 and a bottom light source 64. The oblique camera 62 is relatively located above the annular material tray 21 so as not to be perpendicular to the annular material tray 21. The direction of the disk surface captures the image of the object to be imaged 99 on the annular material tray 21 , and the bottom light source 64 is located below the annular material tray 21 . In this first embodiment, the oblique camera 62 adjusts its imaging angle through a rotary driver 68, and the bottom light source 64 is driven to move laterally by a bottom driver 69. The aforementioned rotary driver 68 and bottom The driver 69 can be a drive motor, and can be used to set the screw if necessary.

Among them, the horizontal imaging unit 31 obtains the side profile of the object 99 to be imaged, the upper imaging unit 41 obtains the upward surface image of the object 99 to be imaged, and the lower imaging unit 51 obtains the image of the object 99 to be imaged. The downward surface image of the object 99 is captured, and the oblique imaging unit 61 obtains the contours of the top surface and side surfaces of the object 99 to be captured.

Furthermore, when the object to be imaged 99 is annular or penetrating up and down and is placed on the annular material tray 21, the light from the bottom light source 64 is irradiated and passes through the inside of the object to be imaged 99, and the oblique The imaging unit 61 obtains an image of part of the inner surface of the object 99 to be imaged.

The structure of the first embodiment has been described above. Next, the operation state of the first embodiment will be described. When describing the operating state, the order of the horizontal imaging unit 31, the upper imaging unit 41, the lower imaging unit 51 and the oblique imaging unit 61 will be explained, but this is only based on FIGS. 1 to 1. The positions shown in FIG. 4 are in the clockwise direction as an example. In fact, the horizontal imaging unit 31 , the upper imaging unit 41 , the lower imaging unit 51 and the oblique imaging unit 61 can also be in different orders. Settings are determined according to user needs.

In order to make the representation of the drawings clearer, only one image-capturing unit is shown in FIG. 5 to FIG. 8 for explanation.

As shown in FIG. 5 , before taking an image, an object 99 to be taken is first placed on the annular material tray 21 . In the first embodiment, a nut is taken as an example.

As shown in FIG. 5 , the annular tray 21 is driven to move the object 99 to be imaged to a position where the lateral imaging unit 31 can capture an image. When the lateral light source 34 is illuminated, the lateral camera 32 is A backlight image of the object 99 to be captured is obtained, and this image can be used to detect the side contour of the object 99 to be captured.

As shown in FIG. 6 , the annular tray 21 is driven to move the object 99 to be imaged to a position where the upper imaging unit 41 can capture the image, and the upper light source 44 irradiates the object 99 from top to bottom. 99, the upper camera 42 takes an image of the object 99 to be captured, and obtains a top view image of the object 99 to be captured. The upper light source 44 is actually in the shape of a ring, and its hollow part can be used by the upper camera 42 to capture images, so that the illumination of the acquired image is uniform, and the first backlight source 46 is turned off at this time. In addition, if the upper light source 44 is turned off and the first backlight source 46 is turned on, the upper camera 42 will obtain the backlight image of the object to be captured 99 and can be used to detect the surrounding contour of the object to be captured 99 .

As shown in FIG. 7 , the annular material tray 21 is driven to move the object 99 to be imaged to a position where the lower imaging unit 51 can capture an image, and the lower light source 54 passes through the annular material tray from bottom to top. 21 is irradiated on the bottom of the object to be captured 99 , and the lower camera 52 captures the image of the object to be captured 99 through the annular material tray 21 to obtain a bottom-view image of the object to be captured 99 . The lower light source 54 is actually in the shape of a ring, and its hollow part is used for the lower camera 52 to capture images, so that the illumination of the acquired image is uniform, and the second backlight source 56 is turned off at this time. In addition, if the lower light source 54 is turned off and the second backlight source 56 is turned on, the lower camera 52 will obtain the backlight image of the object 99 to be captured, and can be used to detect the surrounding contour of the object 99 to be captured.

As shown in FIG. 8 , the annular material tray 21 is driven to move the object 99 to be imaged to a position where the oblique imaging unit 61 can capture the image, and the bottom light source 64 passes through the annular material tray 21 from bottom to top. By illuminating the bottom of the object to be imaged 99 and the inner surface of the object to be imaged 99 , the oblique camera 62 captures the image of the object to be imaged 99 in an oblique direction, and the object to be imaged 99 can be obtained. An image of part of the inner surface of the object 99 to be imaged. Since the object 99 to be imaged is a nut, for example, the threads of part of the inner surface of the object 99 to be imaged will be clearly displayed in the image, which can be used to detect the object 99 . The inner surface of the object 99 to be imaged.

It can be seen from the above that in addition to capturing the top surface, bottom surface and side profile of the object 99 to be imaged, this invention can also image the hollow inner surface of the object 99 to be imaged for subsequent detection.

As shown in Figures 9 and 10, the present invention proposes a device 10' for capturing images of the inner and outer surfaces of an object through a second preferred embodiment. It is mainly the same as the first embodiment mentioned above, but the differences are lies in:

It further includes a circumferential imaging unit 71', which is located on the base 11'. The circumferential imaging unit 71' has four movable arms 72' equally distributed and a circumferential light source 74'. Each movable arm 72' There is a camera 721' and a reflector 722'. The reflectors 722' on the four movable arms 72' are equiangularly distributed around the object to be captured 99, and on each of the movable arms 72' The camera 721' captures images of each of the reflectors 722' respectively to obtain images of the circumferential surface of the object 99 to be captured from various angles, which can then be integrated into a complete circumferential image. In practice, more movable arms 72' can also be used, such as five or six movable arms, to obtain images from more angles. However, the imaging range of four movable arms 72' equally angularly distributed is sufficient to completely cover the imaging range. The entire circumference of the object 99 to be captured, therefore, the number of the movable arms 72' is determined according to the actual needs of the user. The movable arms 72' can be designed to be opened and closed electrically or manually relative to the center, so as to adjust the distance between each reflector 722' and the object 99 to be imaged. The peripheral light source 74' is used to illuminate the peripheral surface of the object 99 to be imaged.

In addition, the second embodiment further includes a feeding unit 81' and a whole feeding unit 87'. The feeding unit 81' has a vibrating plate 82', a conveyor belt 84' and a paddle 86'. The vibrating plate 82' is used to vibrate and flip a plurality of objects 99 to be imaged to a predetermined posture, and rotate them one by one. Moving to the conveyor belt 84', the conveyor belt 84' is used to transfer the plurality of objects 99 to be imaged to the paddle 86' one by one, and then be dialed to the annular material tray 21'. The material sorting unit 87' has a guide 88', and the object 99 to be imaged will be guided by the guide 88' when the object 99 moves along with the rotation of the annular material tray 21' to contact the guide 88'. The member 88' is guided to a predetermined radius position P' on the annular material tray 21'. The predetermined radius position P' refers to the radius length of the annular material tray 21' relative to its center. As the ring As the material tray 21' rotates, the object 99 to be imaged will move at the predetermined radius position P' of the annular material tray 21'. The predetermined radius position P' can be used by the user to adjust the horizontal imaging unit 31', the upper imaging unit 41', the lower imaging unit 51', the oblique imaging unit 61' and the peripheral surface. The imaging position of the imaging unit 71' is such that the object 99 to be imaged can be moved to each of the aforementioned imaging units 31', 41', 51', 61 simply by rotating the annular tray 21'. Take the image at the imaging position of ',71'.

As shown in Figures 9 and 10, during operation of the second embodiment, a plurality of objects 99 to be imaged are placed on the vibrating plate 82' of the feeding unit 81', and the plurality of objects 99 to be imaged are That is, they will be sorted into a fixed posture one by one and enter the annular material tray 21', and will be neatly guided to the predetermined radius position P' by the material sorting unit 87'. By rotating, each object 99 to be imaged will pass through the horizontal imaging unit 31', the upper imaging unit 41', the lower imaging unit 51', the oblique imaging unit 61' and the peripheral surface one by one. The imaging position of the imaging unit 71' is captured for subsequent detection. When the peripheral imaging unit 71' takes an image, it uses each of the cameras 721' on the four movable arms 72' to obtain images of each side of the object 99 to be imaged through each of the reflectors 722'. The images can then be used for separate inspections.

It can be seen from this that compared with the first embodiment, the second embodiment adds more preliminary work of feeding and sorting materials, and can also capture the entire circumferential surface of the object 99 to be imaged for subsequent inspection.

The remaining structures and achievable functions of the second embodiment are the same as those of the first embodiment and will not be described again.

10: Device for taking images of the inner and outer surfaces of objects 11: base 21: Ring shaped tray 22: Rotary table 31: Horizontal imaging unit 32:Horizontal camera 34: Horizontal light source 39:Drive unit 41: Upper imaging unit 42:Get on camera 44: Upper light source 46:First backlight 49: Upper drive unit 51: Lower imaging unit 52:Get off the camera 54: Lower light source 56: Second backlight 59: Lower drive unit 61: Oblique imaging unit 62: Oblique camera 64: Bottom light source 68: Rotary drive 69: Bottom driver 99:Object to be imaged 10’: Device for taking images of the inner and outer surfaces of objects 11’: base 21’: Ring shaped tray 31’: Horizontal imaging unit 41’: Upper imaging unit 51’: Lower imaging unit 61’: oblique imaging unit 71’: Surround surface imaging unit 72’: Movable arm 721’:Camera 722’: Reflector 74’:Zhou Guangyuan 81’: Feeding unit 82’: Vibrating plate 84’: Conveyor belt 86’: Pick 87’: Monolithic unit 88’: Guide P’: Predetermined radius position

Figure 1 is a perspective view of the first preferred embodiment of this invention. Figure 2 is a top view of the first preferred embodiment of this invention. Figure 3 is a front view of the first preferred embodiment of the invention. Figure 4 is a right side view of the first preferred embodiment of the invention. Figure 5 is a diagram of the horizontal imaging action of the first preferred embodiment of this invention. Figure 6 is an upward imaging action diagram of the first preferred embodiment of this invention. Figure 7 is a diagram of the downward imaging action of the first preferred embodiment of this invention. Figure 8 is an oblique imaging action diagram of the first preferred embodiment of this invention. Figure 9 is a top view of the second preferred embodiment of the present invention. Figure 10 is a diagram of the peripheral imaging operation of the second preferred embodiment of this invention.

10: Device for taking images of the inner and outer surfaces of objects

11: base

21: Ring shaped tray

22: Rotary table

31: Horizontal imaging unit

32:Horizontal camera

34: Horizontal light source

39:Drive unit

41: Upper imaging unit

49: Upper drive unit

51: Lower imaging unit

59: Lower drive unit

61: Oblique imaging unit

62: Oblique camera

64: Bottom light source

68: Rotary drive

Claims (5)

A device for taking images of the inner and outer surfaces of an object, including: a base; An annular material tray is rotatably provided on the base for placing an object to be imaged on it. The annular material tray is transparent and allows light to pass through, and is used for placing the object to be imaged. to illuminate or take images; A horizontal imaging unit is provided on the base and has a horizontal camera and a horizontal light source relative to the horizontal camera. One of the horizontal camera and the horizontal light source is located in the ring of the annular material tray, The other is located outside the ring of the annular material tray; An upper imaging unit is located on the base and has an upper camera and an upper light source. The upper camera and the upper light source are located above the annular material tray; A lower imaging unit is located on the base and has a lower camera and a lower light source. The lower camera and the lower light source are located below the annular material tray; and An oblique imaging unit is located on the base and has an oblique camera and a bottom light source. The oblique camera is located relatively above the annular material tray and captures the annular material in a direction that is not perpendicular to the surface of the annular material tray. When capturing an image of the object to be imaged on the material tray, the bottom light source is located below the annular material tray; Among them, the horizontal imaging unit at least obtains the side profile of the object to be imaged, the upper imaging unit at least obtains the upward surface image of the object to be imaged, and the lower imaging unit at least obtains the image of the object to be imaged A downward-facing surface image, and the oblique imaging unit obtains at least the contours of the top and side surfaces of the object to be imaged; Wherein, when the object to be imaged is annular or penetrating up and down and is placed on the annular material tray, the light from the bottom light source is irradiated and passes through the inside of the object to be imaged, and the oblique image capturing unit at least obtains An image of part of the inner surface of the object to be imaged. The device for capturing images of the inner and outer surfaces of an object according to claim 1, which further includes a circumferential imaging unit located on the base, and the circumferential imaging unit has at least four activities equally angularly distributed. arms and a peripheral light source, each movable arm has a camera and a reflector, the reflectors on the at least four movable arms are equiangularly distributed around the object to be imaged, and each of the movable arms has The camera captures images of each of the reflectors respectively, thereby obtaining a peripheral image of the object to be captured. The device for imaging the inner and outer surfaces of objects according to claim 1, which further includes a feeding unit and a complete feeding unit; the feeding unit has a vibrating plate, a conveyor belt and a paddle; The monolithic unit has at least one guide. When the object to be imaged moves to contact the guide as the annular material tray rotates, it will be guided to the annular material tray by the guide. A predetermined radius position on the annular material tray, the predetermined radius position refers to the radius length of the annular material tray relative to the center of the circle. The device for imaging the inner and outer surfaces of an object according to claim 1, wherein: the horizontal camera and the horizontal light source are both driven by a driving unit to move horizontally and up and down; the upper camera of the upper imaging unit And the upper light source is driven by an upper drive unit to move laterally and up and down; the lower camera and the lower light source of the lower imaging unit are driven by a lower drive unit to move horizontally and up and down; the oblique camera is driven by A rotary driver is used to adjust the angle, and the bottom light source is driven to move laterally by a bottom driver. The device for capturing images of the inner and outer surfaces of objects according to claim 1, wherein: the upper image capturing unit further has a first backlight located below the annular material tray; the lower image capturing unit further has A second backlight source is located above the annular material tray.

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