CN218629558U

CN218629558U - Visual detection equipment

Info

Publication number: CN218629558U
Application number: CN202223034332.0U
Authority: CN
Inventors: 彭远征; 张一帆; 江明明; 王琪; 卿前华; 桂志刚; 胡都; 王少晓
Original assignee: Hunan Duno Intelligent Robots Technology Co ltd
Current assignee: Hunan Duno Intelligent Robots Technology Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-03-14
Anticipated expiration: 2032-11-14

Abstract

The utility model belongs to the technical field of visual inspection, specifically relate to a visual inspection equipment, including moving and carrying device and two detection stations, move and carry the device and be used for moving the product that awaits measuring to another detection station, two from one of them detection station, respectively be provided with a camera on the detection station, and the orientation of camera is opposite on two detection stations, still be provided with reflector assembly on at least one detection station to the side reflection to this detection station's of product that awaits measuring camera department, under the condition of the product that awaits measuring of not overturning, can gather the image of the product at least two sides that awaits measuring simultaneously in an orientation through a camera, improve detection efficiency, and through two cameras opposite in orientation and the cooperation of moving and carrying the device, can realize the image acquisition to each side of the product that awaits measuring, reduce camera and flip structure's setting, reduce structure complexity and cost.

Description

Visual detection equipment

Technical Field

The utility model belongs to the technical field of visual detection, specifically relate to a visual detection equipment.

Background

In the processing and production process of precious metal castings such as silver ingots and gold ingots, in order to guarantee the product quality, the quality of the products needs to be detected after molding, and whether the surfaces of the products have defects such as air holes, depressions and scratches or not needs to be observed. The most common detection method is manual operation, the efficiency is low, the detection result is greatly influenced by manual work, and the quality control standard is difficult to quantify. Therefore, some detection devices are proposed in the prior art to realize automatic detection, and because products such as silver ingots and gold ingots have six surfaces, the detection devices in the prior art are generally provided with a plurality of cameras in different directions aiming at corresponding surfaces, and the cameras in different directions are used for respectively acquiring images of the surfaces of the products. Or the product is turned over through a rotating mechanism, and then the images of all surfaces of the product are sequentially acquired by matching with a camera, for example, the device and the method for detecting the appearance of the bullion ingot based on vision provided by the patent No. CN202110470790.X need to turn the product to a corresponding angle and then sequentially acquire the images of all surfaces of the product, so that the overall structure is complex, the cost is high, and the overall detection efficiency needs to be improved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a visual detection equipment that improves detection efficiency, reduces structure complexity and cost.

The utility model discloses a content is including moving device and two detection stations, moves the device of carrying and is used for moving the product that awaits measuring to another detection station, two from one of them detection station respectively be provided with a camera on the detection station, and the orientation of camera on two detection stations is opposite, still is provided with reflector assembly on at least one detection station to the side reflection of the product that awaits measuring to this detection station's camera department.

Furthermore, the number of the detection stations provided with the reflector assembly is one, the reflector assembly comprises four reflector bodies, the four reflector bodies are arranged oppositely in pairs, and a cavity for accommodating a product to be detected is formed between the four reflector bodies.

Furthermore, four reflector bodies are all installed on the frame, and the reflector bodies can rotate around the frame to adjust the angle of the reflector bodies.

Furthermore, be connected with the fixed plate on the speculum body, seted up mounting hole and arc waist hole on the fixed plate, all wear to be equipped with the retaining member on mounting hole and the arc waist hole, and the retaining member is fixed with the frame.

Furthermore, a first light source is arranged in the two detection stations.

Furthermore, the first light source of the detection station provided with the reflector component is a plane light source, the plane light source is arranged towards the reflector component, and the first light source of the other detection station is a dome light source.

Furthermore, a second light source is arranged in each of the two detection stations, and the second light sources are coaxial light sources.

Still further, still include the transfer chain, the product that the said transfer chain was used for awaiting measuring is carried to the below of camera in the inspection station that does not set up the reflector assembly.

Furthermore, the transferring device comprises a transferring mechanism and a clamp, and the clamp is a vacuum chuck.

Furthermore, the transfer mechanism comprises a linear module and a lifting module, and the moving directions of the linear module and the lifting module are perpendicular to each other.

The beneficial effects of the utility model are that, owing to set up reflector assembly in detecting the station, the camera in this detecting the station not only can gather the image information of the product of awaiting measuring directly towards the one side of camera, still can gather the side image information of the product of awaiting measuring simultaneously through reflector assembly's reflection, under the condition of the product of awaiting measuring that does not overturn, can gather the image of the product of awaiting measuring two sides at least simultaneously in a direction through a camera promptly, improve detection efficiency. And through two opposite cameras of orientation and the cooperation that moves the device that carries, can realize the image acquisition to each side of the product that awaits measuring, reduce camera and flip structure's setting, reduce structure complexity and cost.

Drawings

Fig. 1 is a schematic structural diagram of a first view angle of the present invention.

Fig. 2 is an enlarged view of a point a in fig. 1 according to the present invention.

Fig. 3 is a schematic structural diagram of a second viewing angle of the present invention.

Fig. 4 is a schematic structural diagram of the mirror assembly of the present invention.

In the figure, 1-a transfer device; 11-a linear module; 12-a hoisting module; 13-vacuum chuck; 2-a camera; 3-a coaxial light source; 4-a dome light source; 5-a mirror assembly; 51-a mirror body; 52-a mounting seat; 53-fixing plate; 531-mounting holes; 532-arc waist hole; 54-a retaining member; 6-plane light source; 7-a frame; 8-conveying line; 100-product to be tested.

Detailed Description

As shown in fig. 1-4, the present invention comprises a transfer device 1 and two detection stations, wherein the transfer device 1 is used to move a product 100 to be detected after being detected by one of the detection stations to another detection station, two of the detection stations are respectively provided with a camera 2, both of which are used to collect surface images of the product 100 to be detected, the cameras 2 in the two detection stations are opposite in orientation, under the condition that the product 100 to be detected is not turned over, the cameras 2 in the two detection stations can respectively collect image information of two opposite surfaces of the product 100 to be detected, such as an upper surface and a lower surface, and at least one of the detection stations is further provided with a reflector assembly 5 to reflect the side surface of the product 100 to be detected to the camera 2 of the detection station,

the utility model provides a visual inspection equipment, the orientation of camera 2 is opposite in two detection station 2, the cooperation is moved and is carried the use of device 1, need not upset product 100 that awaits measuring, can carry out image acquisition to two relative surfaces of product 100 that awaits measuring respectively, owing to set up reflector assembly 5 in detection station, camera 2 in this detection station not only can gather the image information of the product 100 that awaits measuring directly towards camera 2's one side, still can gather the side image information of product 100 that awaits measuring simultaneously through reflector assembly 5's reflection, be promptly under the condition of product 100 that awaits measuring of not overturning, can gather the image of the product 100 two at least sides that awaits measuring simultaneously in a direction through a camera 2, and improve detection efficiency, through two opposite camera 2 of orientation and the cooperation of moving device 1, can realize the image acquisition to the product 100 each side that awaits measuring, reduce camera 2 and flip structure's setting, reduce structure complexity and cost.

The utility model discloses in, be provided with reflector assembly 5's detection station is one, and reflector assembly 5 includes reflector body 51, and reflector body 51's quantity is decided according to the side quantity of the product 100 that awaits measuring, with the utility model discloses a detection for silver ingot or golden ingot is for example, because silver ingot or golden ingot are rectangular bodily form, have four sides, consequently reflector assembly 5 includes four reflector bodies 51, as shown in fig. 4, two liang of relative settings of four reflector bodies 51 for form a cavity between four reflector bodies 51, this cavity is used for holding the product 100 that awaits measuring, and the size of this cavity is greater than the size of the product 100 that awaits measuring, and the product 100 that awaits measuring can move into or shift out this cavity under the drive that moves device 1 to do not contact with reflector body 51, be provided with its camera 2 orientation of reflector assembly 5's detection station cavity and reflector body 51 set up. The reflecting surfaces of the reflector bodies 31 are inclined, so that when the product 100 to be measured moves into the four reflector bodies 51, the side images of the product 100 to be measured are reflected by the inclined reflecting surfaces and collected by the camera 2. The reflector body 31 may be a prism or other reflector.

The transfer device 1 and four reflector bodies 51 are all installed on the rack 7, and the reflector bodies 51 can rotate around the rack 7 so as to adjust the inclination angles of the reflector bodies 51. Specifically, the reflector assembly 5 further comprises a mounting seat 32, the number of the mounting seat 32 is the same as that of the reflector bodies 51, each reflector body 51 is arranged on the mounting seat 32 in a one-to-one correspondence manner, a fixing plate 53 is arranged on the mounting seat 32, a mounting hole 531 and an arc-shaped waist hole 532 are formed in the fixing plate 53, locking pieces 54 are arranged on the mounting hole 531 and the arc-shaped waist hole 532 in a penetrating manner, and the locking pieces 54 are fixed to the rack 7. Specifically, a strip-shaped groove is formed in the frame 7, a connecting block is arranged in the strip-shaped groove, and the locking member 54 is arranged on the mounting hole 531 or the arc-shaped waist hole 532 in a penetrating manner and fixed to the connecting block, so that the reflector body 51 is fixed. Wherein, retaining member 54 is a bolt and the connecting member is a T-shaped connecting block with a threaded hole. When the angle of the reflector body 51 needs to be adjusted, the locking pieces 54 on the mounting holes 531 and the arc-shaped waist holes 532 are unscrewed, so that the fixing plate 53 rotates around the locking pieces 54 on the mounting holes 531, the locking pieces 54 on the arc-shaped waist holes 532 and the arc-shaped waist holes 532 are displaced relatively, and then the locking pieces 54 are locked. For only set up the mode of a mounting hole 531 on fixed plate 53, the utility model discloses a mode of mounting hole 531 cooperation arc waist hole 532 because all can set up retaining member 54 on mounting hole 531 and the arc waist hole 532, consequently when not influencing its angle modulation, single fixed plate 53 can be fixed with two retaining members 54, and is fixed firm more reliably.

Two all be provided with first light source in the detection station to camera 2's image acquisition work. The first light source of the detection station provided with the reflector component 5 is a plane light source 6, the plane light source 6 and the camera 2 in the detection station are arranged upwards, and the plane light source 6 is arranged towards the reflector component 5, so that the illumination is more uniform. Specifically, a through hole is formed in the middle of the plane light source 6, the camera 2 performs image acquisition through the through hole, in order to compensate the lost light emitting surface of the through hole and avoid leaving black spots on the surface of the product 100 to be detected, a second light source is further arranged in the detection station, the second light source is a coaxial light source 3, the coaxial light source 3 and the through hole are coaxially arranged and are located between the plane light source 6 and the camera 2 in the detection station, and the camera 2 in the detection station is arranged towards the coaxial light source 3.

The other first light source in the detection station without the reflector component 5 is a dome light source 4, the dome light source 4 and the camera in the detection station are both arranged downwards, the camera 2 is arranged at the top of the dome light source 4, image acquisition is carried out through a circular hole of the dome light source 4, in order to compensate a light-emitting surface which is lost at the circular hole of the dome light source 4 and avoid black spots from being left on the surface of the product 100 to be detected, a second light source is further arranged in the detection station and is a coaxial light source 3, the coaxial light source 3 is arranged coaxially with the circular hole and is located between the dome light source 4 and the camera 2 in the detection station, and the camera 2 in the detection station is arranged towards the coaxial light source 3.

The utility model discloses still include transfer chain 8, transfer chain 8 is located the below of camera 2 in the detection station that does not set up reflector assembly 5 to be used for the product 100 that awaits measuring to carry to the below of camera 2 in this detection station, make camera 2 directly carry out image acquisition to the upper surface of the product 100 that awaits measuring. The reflector assembly 5 is located at one end of the conveyor line 8, after collection is completed, the conveyor line 8 conveys the product 100 to be detected forwards, and the transfer device 1 moves the product 100 to be detected into the cavity between the four reflector bodies 51.

The utility model provides a move and carry device 1 is including moving mechanism and anchor clamps, anchor clamps are vacuum chuck 13, and vacuum chuck 13 is connected with outside vacuum reflection device, through adopting vacuum chuck 13, when removing the product 100 that awaits measuring, only need directly adsorb at the top surface of the product 100 that awaits measuring, need not to occupy the side space of the product 100 that awaits measuring, consequently move and carry device 1 when removing the cavity between the product 100 that awaits measuring to four speculum bodies 51, vacuum chuck 13 can not shelter from the side of the product 100 that awaits measuring, avoids influencing the image integrity degree that camera 2 gathered.

The transfer mechanism comprises a linear module 11 and a lifting module 12, the lifting module 12 is arranged at the moving end of the linear module 11, a vacuum chuck 13 is arranged at the moving end of the lifting module 12, and the moving directions of the linear module 11 and the lifting module 12 are perpendicular to each other, so that the processes of lifting and transverse transfer are realized. The lifting module 12 may be a cylinder or an oil cylinder.

The utility model discloses a theory of operation: the product 100 that awaits measuring is carried to the below of camera 2 in the detection station that does not set up reflector assembly 5 with transfer chain 8, the image information of the product 100 upper surface that awaits measuring is gathered to camera 2 in this detection station, transfer chain 8 continues the product 100 that awaits measuring to carry forward afterwards, it adsorbs product 100 upper surface that awaits measuring and removes the product 100 that awaits measuring to the cavity department between four reflector bodies 51 of another detection station to move to, through the reflex action of reflector body 51, the image information of the lower surface of product 100 and four sides that await measuring is gathered simultaneously to camera 2 in this detection station.

Claims

1. The visual detection equipment is characterized by comprising a transfer device (1) and two detection stations, wherein the transfer device (1) is used for moving a product (100) to be detected from one detection station to the other detection station, the two detection stations are respectively provided with a camera (2), the directions of the cameras (2) on the two detection stations are opposite, and at least one detection station is also provided with a reflector component (5) so as to reflect the side surface of the product (100) to be detected to the camera (2) on the detection station.

2. The visual inspection apparatus according to claim 1, wherein the inspection station provided with the mirror assembly (5) is one, the mirror assembly (5) comprises four mirror bodies (51), the four mirror bodies (51) are arranged opposite to each other in pairs, and a cavity for accommodating the product (100) to be inspected is formed between the four mirror bodies (51).

3. The visual inspection apparatus of claim 2, wherein four of said mirror bodies (51) are mounted on the frame (7), and the mirror bodies (51) are rotatable about the frame (7) to adjust the angle of the mirror bodies (51).

4. The visual inspection device of claim 3, wherein the reflector body (51) is connected with a fixing plate (53), the fixing plate (53) is provided with a mounting hole (531) and an arc-shaped waist hole (532), the mounting hole (531) and the arc-shaped waist hole (532) are both provided with a locking member (54) in a penetrating manner, and the locking member (54) is fixed with the frame (7).

5. The visual inspection apparatus of any one of claims 2 to 4, wherein a first light source is provided in both of the inspection stations.

6. The visual inspection apparatus of claim 5, wherein the inspection station in which the mirror assembly (5) is located has a first light source which is a planar light source (6), the planar light source (6) being located towards the mirror assembly (5), and the other inspection station has a first light source which is a dome light source (4).

7. The visual inspection apparatus of claim 6, wherein a second light source is also provided in both of said inspection stations, said second light source being a coaxial light source (3).

8. The visual inspection apparatus of any one of claims 2-4, 6, 7, further comprising a conveyor line (8), the conveyor line (8) being adapted to convey the product (100) to be inspected below the camera (2) in an inspection station where the mirror assembly (5) is not located.

9. The visual inspection apparatus according to any one of claims 1 to 4, 6, and 7, wherein the transfer device (1) comprises a transfer mechanism and a clamp, and the clamp is a vacuum chuck (13).

10. The visual inspection apparatus of claim 9, wherein the transfer mechanism includes a linear module (11) and a lifting module (12), and the linear module (11) and the lifting module (12) are moved in directions perpendicular to each other.