CN112067613A

CN112067613A - Appearance detection device

Info

Publication number: CN112067613A
Application number: CN202010887533.1A
Authority: CN
Inventors: 吴天水; 刘龙海; 刘宣宣
Original assignee: Bozhon Precision Industry Technology Co Ltd
Current assignee: Suzhou Bozhong Intelligent Robot Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2020-12-11

Abstract

The invention relates to the technical field of product appearance detection, in particular to an appearance detection device which comprises a first mounting seat, a conveying body, two second mounting seats, two first cameras, a third mounting seat and a second camera, wherein the conveying body is mounted on the first mounting seat, and is used for supporting a material belt in conveying. Two second mount pads symmetric distribution are in the both sides in material area. The two first cameras are respectively installed on the two second installation seats, and the lenses of the two first cameras are symmetrically arranged and form acute angles with the material belt. The third mount pad is located one side of material area. The second camera is arranged on the third mounting seat and is positioned behind the first camera, and the lens of the second camera is perpendicular to the material belt. The appearance detection device provided by the invention detects the appearances of different positions of the material belt through the two first cameras which are symmetrically arranged and the second camera which is positioned behind the first cameras, has high detection efficiency, and can ensure the conveying efficiency of the material belt.

Description

Appearance detection device

Technical Field

The invention relates to the technical field of product appearance detection, in particular to an appearance detection device.

Background

The appearance of a product is generally detected by a camera, and the product in a static state is generally detected by one camera. For example, the current cell-phone glass panels flaw detection device (CN111541808A) that discloses, when needs examine cell-phone glass panels, place cell-phone glass panels on the conveyer belt, transport the panel under the detection camera by the conveyer belt, then start two electric telescopic handle, electric telescopic handle promotes the movable plate and moves down, make second lens hood cover on the conveyer belt, the panel is located the second lens hood simultaneously, then start light and detection camera and detect the panel, when the position of detecting the camera is adjusted to needs, rotate the screw rod, under the effect of screw thread, the mounting panel drives the detection camera and moves, be convenient for detect cell-phone glass panels better. Although the mobile phone glass panel flaw detection device conveys the mobile phone glass panel to the position right below the detection camera through the conveying belt, the glass panel is in a static state for a long time in the detection process, and the detection efficiency is low.

When the appearance of the material belt in the conveying state is detected, the conveying efficiency is ensured, and the shorter the time for the material belt to stay is, the better the material belt stays. The material belt in the conveying process is detected by the existing appearance detection device, so that the conveying efficiency of the material belt can be reduced.

Disclosure of Invention

The invention aims to provide an appearance detection device which is high in detection efficiency and can ensure the conveying efficiency of a material belt.

In order to achieve the purpose, the invention adopts the following technical scheme:

an appearance inspection device comprising:

a first mounting seat;

the conveying body is mounted on the first mounting seat and used for supporting a material belt in conveying;

the two second mounting seats are symmetrically distributed on two sides of the material belt;

the two first cameras are respectively arranged on the two second mounting seats, and lenses of the two first cameras are symmetrically arranged and form an acute angle with the material belt;

the third mounting seat is positioned on one side of the material belt;

the second camera is mounted on the third mounting seat and located behind the first camera, and a lens of the second camera is perpendicular to the material belt.

Preferably, in the appearance detection device, the appearance detection device further includes a lamp holder, one end of the lamp holder is installed on the second installation seat, the other end of the lamp holder extends towards the position right above the material belt, and the lamp holder is installed with a lamp body with light rays towards the material belt.

Preferably, in the appearance inspection device, the second mounting seat includes two plate bodies arranged at an interval, an accommodating space is formed between the two plate bodies, and the first camera is mounted on the two plate bodies and located in the accommodating space.

Preferably, in the above appearance inspection device, the plate body includes a vertical base plate and an inclined plate configured at a top end of the base plate and inclined inward, the inclined plate is provided with an arc-shaped angle adjusting hole, and the first camera is connected to the angle adjusting hole through a connecting member.

Preferably, in the appearance inspection device, the third mounting seat includes a vertical supporting column and a horizontal body mounted at a top end of the supporting column and extending inward, and the second camera is mounted on an inner side surface of the horizontal body.

Preferably, in the above-described appearance inspection device, the horizontal body includes a horizontal portion and a vertical portion located inside the horizontal portion, the vertical portion extending downward below the horizontal portion, and the second camera is mounted to the vertical portion.

Preferably, in the appearance inspection device, the conveying body includes a base body and two cover bodies installed on the top surface of the base body at intervals and symmetrically, and the top surface of the base body has a groove to form a slot for accommodating the material tape with the cover body.

Preferably, in above-mentioned outward appearance detection device, two form the space of stepping down between the lid, the space of stepping down with the slot intercommunication, and be used for holding the product on the material area.

Preferably, in the appearance inspection device, the lenses of the two first cameras face two side surfaces of the product, and the lens of the second camera faces the top surface of the product.

Preferably, in the above appearance detecting device, the top surface of the cover body is configured with a yielding inclined surface for yielding for the shooting of the first camera, and an included angle between the yielding inclined surface and a horizontal plane is smaller than an included angle between a lens of the first camera and the horizontal plane.

The appearance detection device has the advantages that: the appearance of different positions of the material belt is detected through the two first cameras which are symmetrically arranged and the second camera which is positioned behind the first cameras, the detection efficiency is high, and compared with the existing method that the different positions of a product are detected through one camera in a position conversion mode, the material belt has short stay time in the appearance detection process. Namely, the appearance detection device has high detection efficiency and can ensure the conveying efficiency of the material belt.

Drawings

FIG. 1 is a front end view of an appearance inspection device in accordance with an embodiment of the present invention;

FIG. 2 is an end view of an embodiment of the present invention with the appearance inspection device reversed;

FIG. 3 is an enlarged view of a portion of FIG. 2 at I;

fig. 4 is a perspective view of an appearance detecting apparatus according to an embodiment of the present invention.

The component names and designations in the drawings are as follows:

the appearance detection device 100, the first mounting seat 10, the second mounting seat 20, the plate body 21, the base plate 211, the inclined plate 212, the angle adjustment hole 2121, the accommodating space 22, the third mounting seat 30, the support column 31, the horizontal body 32, the horizontal portion 321, the vertical portion 322, the conveying body 40, the base body 41, the groove 411, the cover body 42, the abdicating space 421, the abdicating inclined plane 422, the first camera 50, the second camera 60, the lamp holder 70, and the material strap 90.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

For convenience of description, the present application defines a front-to-back direction with the transport direction of the strip of material 90, and the strip of material 90 of the present application moves from front to back. The backward direction is shown as the X direction in fig. 4.

Fig. 1 is a front end view of an appearance inspection apparatus 100 according to an embodiment of the present invention. As shown in fig. 1, the present embodiment discloses an appearance inspection apparatus 100, the appearance inspection apparatus 100 includes a first mounting base 10, a conveying body 40, two second mounting bases 20, two first cameras 50, a third mounting base 30, and a second camera 60, the conveying body 40 is mounted on the first mounting base 10, and the conveying body 40 is used for supporting a material belt 90 during conveying. The two second mounting seats 20 are symmetrically distributed on two sides of the material belt 90. The two first cameras 50 are respectively mounted on the two second mounting seats 20, and lenses of the two first cameras 50 are symmetrically arranged and form an acute angle with the material belt 90. The third mounting seat 30 is located at one side of the material strip 90. The second camera 60 is mounted on the third mounting base 30 and located behind the first camera 50, and a lens of the second camera 60 is perpendicular to the material belt 90.

The appearance detection device 100 of this embodiment detects appearances of different positions of the material tape 90 by the two first cameras 50 symmetrically disposed and the second camera 60 located behind the first cameras 50, and has high detection efficiency, and compared with the existing method that detects different positions of a product by switching positions by one camera, the material tape 90 of this embodiment stays for a short time in the appearance detection process. That is, the appearance detecting device 100 of the present embodiment has high detection efficiency, and can ensure the conveying efficiency of the material tape 90.

Specifically, the first mount 10, the second mount 20, and the third mount 30 of the present embodiment are all mounted on the base of the device where the appearance inspection apparatus 100 is located. The base is horizontally arranged. The first, second and

third mounting seats

10, 20 and 30 may be connected as a whole, that is, there is a connection relationship between the first, second and

third mounting seats

10, 20 and 30. The first, second, and

third mounting seats

10, 20, and 30 may be independently mounted on the base, that is, the first, second, and

third mounting seats

10, 20, and 30 may be spaced apart from each other.

The number of the first installation seats 10 is several, for example, the number of the first installation seats 10 is three, and three first installation seats 10 are spaced from the front to the rear. The bottom end of the first mounting seat 10 is mounted on the base through a connector such as a screw. The first mounting seat 10 is an i-shaped structure, which facilitates connection with the base and the conveying body 40.

The conveying body 40 extends from front to rear and is mounted to the top end of each first mounting seat 10. The number of the conveying bodies 40 in this embodiment is several, the several conveying bodies 40 are distributed along the front-back direction, and adjacent conveying bodies 40 may have a connection relationship, or may be independently installed on the top end of the first installation base 10. When the adjacent conveying bodies 40 are arranged at intervals, a gap is formed between the rear end of the previous conveying body 40 and the front end of the next conveying body 40. Since the material tape 90 of this embodiment has a certain rigidity, the gap exists, and the length of the gap is controlled within a certain range, which does not cause the material tape 90 to bend. That is, a small gap is left between adjacent conveying bodies 40 in this embodiment, so as to ensure the normal conveyance of the material tape 90. For example, the gap may have a length of 1 cm to 3 cm. In addition, because there is not the relation of connection between two adjacent conveying bodies 40 to be favorable to improving the installation effectiveness of conveying body 40, also can reduce the link of equipment, and then reduce the accumulative installation error, in order to reach the effect that improves conveying body 40 position accuracy. The improvement of the positional accuracy of the conveyor 40 improves the positional accuracy of the tape 90, and thus also improves the detection accuracy of the two first cameras 50 and the second camera 60 for the appearance of the tape 90.

Preferably, the appearance detecting device 100 of the present embodiment is disposed behind the riveting device, and the material tape 90 has a short pause time during the riveting process, and during the pause time, the appearance detecting device 100 detects the appearance of the material tape 90 to detect the product on the material tape 90 with the unqualified appearance, so as to further improve the conveying efficiency of the material tape 90 of the present embodiment.

Preferably, the appearance detecting device 100 further includes a lamp holder 70, one end of the lamp holder 70 is mounted on the second mounting seat 20, and the other end extends towards the right above the material tape 90, and the lamp holder 70 is mounted with a lamp body with light rays towards the material tape 90. The lamp body is used for giving two first cameras 50 light fillings to improve outward appearance and detect the precision. When the strip material 90 is installed, it needs to be ensured that the lamp holder 70 and the lamp body are installed at positions that do not block the first camera 50 from shooting the strip material 90. Specifically, the other end of the lamp holder 70 is constructed with a lamp housing in which the lamp body is mounted. The opening of lamp shade is towards material area 90, and the light of lamp body can only be jetted out from this opening to concentrated directive material area 90 improves the light filling effect.

Other light supplement lamps can be further installed on the two second installation bases 20 in the embodiment to further improve the light supplement effect, so that the two first cameras 50 can shoot the appearance of the material belt 90 which is clearer.

Fig. 4 is a perspective view of the appearance detecting apparatus 100 according to the embodiment of the present invention. As shown in fig. 4, preferably, the second mounting seat 20 includes two plate bodies 21 arranged at an interval, an accommodating space 22 is formed between the two plate bodies 21, and the first camera 50 is mounted on the two plate bodies 21 and located in the accommodating space 22. The two sides of the first camera 50 are respectively installed on the two plate bodies 21, and the installation reliability is good.

Preferably, the plate body 21 includes a vertical base plate 211 and an inclined plate 212 configured at a top end of the base plate 211 and inclined inward, the inclined plate 212 is provided with an arc-shaped angle adjustment hole 2121, and the first camera 50 is connected to the angle adjustment hole 2121 by a connector.

The present embodiment facilitates adjustment of the angle of the first camera 50 by providing the angle adjustment hole 2121. Typically, the angle of the first camera 50 needs to be adjusted, either at the time of installation of the first camera 50 or after a period of use, so that the lens of the first camera 50 is directed toward the location of the strip of material 90 to be photographed. After the angle adjustment, the position of the first camera 50 needs to be fixed by a locking member, which may be a locking bolt.

The inclination of the swash plate 212 and the angle adjustment holes 2121 is close to each other in the present embodiment, which is advantageous for downsizing the swash plate 212. The number of the angle adjusting holes 2121 on the inclined plate 212 of each plate body 21 may be two, and the two angle adjusting holes 2121 have a long length and a short length, wherein the short angle adjusting hole 2121 is close to the inner side and is located lower, and the long angle adjusting hole 2121 is close to the outer side and is located higher. For example, the long angle adjustment hole 2121 may have a length of 5 cm and the short angle adjustment hole 2121 may have a length of 2 cm. Specifically, the two angle adjusting holes 2121 are circular arc-shaped structures, and the centers of the two angle adjusting holes 2121 are the same.

Specifically, the first camera 50 is mounted on the two tilt plates 212 by its own mount, which is disposed obliquely, and the tilt angle of the first camera 50 is changed by changing the tilt angle of the mount. The embodiment may further provide a slide rail on the mounting base, the slide rail extends along the length direction of the mounting base, and the first camera 50 is slidably mounted on the slide rail and can be fixed on the slide rail through a fastener. The distance between the first camera 50 and the material belt 90 can be adjusted by adjusting the position of the first camera 50 on the slide rail.

Fig. 2 is an end view of the appearance inspection apparatus 100 in the reverse direction according to the embodiment of the present invention. As shown in fig. 2, the third mount 30 preferably includes a vertical support column 31 and a horizontal body 32 mounted on the top end of the support column 31 and extending inward, and the second camera 60 is mounted on the inner side surface of the horizontal body 32. The third mounting seat 30 of the present embodiment has a simple structure, and the second camera 60 is easily located right above the material belt 90.

Preferably, the horizontal body 32 includes a horizontal portion 321 and a vertical portion 322 located inside the horizontal portion 321, the vertical portion 322 extends downward below the horizontal portion 321, and the second camera 60 is mounted to the vertical portion 322. The vertical portion 322 of the present embodiment extends downward below the horizontal portion 321, so that the vertical portion 322 has a sufficient area to mount the second camera 60, thereby contributing to an improvement in the reliability of the mounting of the second camera 60.

Fig. 3 is a partial enlarged view of fig. 2 at I. As shown in fig. 2 and 3, the conveying body 40 preferably includes a base 41 and two covers 42 installed on the top surface of the base 41 at intervals and symmetrically, and the top surface of the base 41 has a recess 411 to form a slot with the covers 42 for accommodating the tape 90. The tape 90 moves in the slot, which is beneficial to improving the position accuracy of the tape 90, so as to improve the appearance detection accuracy of the first camera 50 and the second camera 60.

Preferably, a yielding space 421 is formed between the two covers 42, and the yielding space 421 is communicated with the slot and is used for accommodating the product on the material belt 90. The product is exposed to the outside through the relief space 421 to facilitate the appearance inspection of the first and

second cameras

50 and 60.

Preferably, the lenses of the two first cameras 50 face both side surfaces of the product, and the lenses of the second camera 60 face the top surface of the product, so that the appearance of the product can be comprehensively inspected.

Preferably, the top surface of the cover 42 is configured with a yielding inclined surface 422 for yielding for the shooting of the first camera 50, and an included angle between the yielding inclined surface 422 and a horizontal plane is smaller than an included angle between a lens of the first camera 50 and the horizontal plane. The present embodiment provides the receding slope 422, so that the lens of the first camera 50 is easily opposite to the side of the product on the tape 90.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. 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 claims of the present invention.

Claims

1. An appearance inspection device, comprising:

a first mounting seat (10);

the conveying body (40), the conveying body (40) is installed on the first installation seat (10), and the conveying body (40) is used for supporting a material belt (90) in conveying;

the two second mounting seats (20) are symmetrically distributed on two sides of the material belt (90);

the two first cameras (50) are respectively arranged on the two second mounting seats (20), and lenses of the two first cameras (50) are symmetrically arranged and form an acute angle with the material belt (90);

a third mounting seat (30), wherein the third mounting seat (30) is positioned at one side of the material belt (90);

a second camera (60), the second camera (60) being mounted to the third mount (30) and located behind the first camera (50), a lens of the second camera (60) being perpendicular to the strip of material (90).

2. The appearance inspection device according to claim 1, further comprising a lamp holder (70), wherein one end of the lamp holder (70) is mounted on the second mounting seat (20), and the other end extends towards the right above the material belt (90), and the lamp holder (70) is mounted with a lamp body with light rays towards the material belt (90).

3. The appearance inspection device according to claim 1, wherein the second mounting seat (20) comprises two spaced-apart plate bodies (21), an accommodating space (22) is formed between the two plate bodies (21), and the first camera (50) is mounted on the two plate bodies (21) and located in the accommodating space (22).

4. The appearance inspection device according to claim 3, wherein the plate body (21) includes a vertical base plate (211) and a slant plate (212) configured at a top end of the base plate (211) and inclined inward, the slant plate (212) is provided with an arc-shaped angle adjustment hole (2121), and the first camera (50) is connected to the angle adjustment hole (2121) by a connection member.

5. The appearance inspection device according to claim 1, wherein the third mounting seat (30) comprises a vertical supporting column (31) and a horizontal body (32) mounted on the top end of the supporting column (31) and extending inward, and the second camera (60) is mounted on the inner side surface of the horizontal body (32).

6. The appearance inspection device according to claim 5, wherein the horizontal body (32) includes a horizontal portion (321) and a vertical portion (322) located inside the horizontal portion (321), the vertical portion (322) extending downward below the horizontal portion (321), the second camera (60) being mounted to the vertical portion (322).

7. The appearance inspection device according to claim 1, wherein the conveying body (40) comprises a base body (41) and two cover bodies (42) which are spaced and symmetrically mounted on the top surface of the base body (41), and the top surface of the base body (41) is provided with a groove (411) to form a slot for accommodating the material belt (90) with the cover bodies (42).

8. The appearance detecting device according to claim 7, wherein a relief space (421) is formed between the two covers (42), and the relief space (421) is communicated with the slot and is used for accommodating the product on the material belt (90).

9. The visual inspection device of claim 8, wherein the lenses of the two first cameras (50) face two sides of the product and the lenses of the second camera (60) face the top surface of the product.

10. The appearance inspection device according to claim 9, wherein the top surface of the cover (42) is configured with a yielding inclined surface (422) for yielding for the shooting of the first camera (50), and an included angle between the yielding inclined surface (422) and a horizontal plane is smaller than an included angle between a lens of the first camera (50) and the horizontal plane.