CN217059962U

CN217059962U - Product surface flaw detection equipment

Info

Publication number: CN217059962U
Application number: CN202123084708.4U
Authority: CN
Inventors: 何银军
Original assignee: Suzhou Suyingshi Image Software Technology Co ltd
Current assignee: Suzhou Suyingshi Image Software Technology Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-07-26
Anticipated expiration: 2031-12-09

Abstract

The application provides product surface flaw detection equipment which comprises a feeding mechanism, a detection mechanism and a discharging mechanism, wherein the feeding mechanism is used for carrying a product to the detection mechanism, the detection mechanism is used for carrying flaw detection on the product, and the discharging mechanism is used for carrying the product from the detection mechanism to a discharging position; the feeding mechanism positions the product through the visual detection assembly during feeding. This equipment utilizes the guide material loading of visual positioning technique through setting up the visual detection subassembly, can directly place the exact position with the product, does not need extra push rod mechanism, and the structure is simpler, and it is higher to place the rate of accuracy. Preferably, a ferris wheel type rotating mechanism is adopted to replace the former production line, so that the equipment structure is more compact, the equipment volume is smaller, and the occupied area is reduced.

Description

Product surface flaw detection equipment

Technical Field

The utility model relates to a product surface flaw detection technology especially relates to a product surface flaw check out test set.

Background

In the modern society, with the advent and development of computer technology, artificial intelligence and other scientific technologies and the deepening of research, a surface defect detection technology based on a machine vision technology appears. The appearance of the technology greatly improves the efficiency of production operation, avoids influencing the accuracy of detection results due to operation conditions, subjective judgment and the like, realizes better and more accurate surface defect detection and more rapid identification of the surface defect of a product.

The detection of the surface defect of the product belongs to one of machine vision technologies, namely, the function of simulating human vision by using computer vision is utilized to acquire, process and calculate images from specific real objects and finally carry out actual detection, control and application. The surface defect detection of the product is an important part of machine vision detection, and the accuracy of the detection directly influences the final quality of the product.

Because the manual detection method can not meet the requirements of production and modern process production and manufacturing for a long time, the machine vision detection is utilized to overcome the problem, and the wide application of the surface defect detection system promotes the high-quality production of enterprise factory products and the development of intelligent automation of manufacturing industry.

In many products, defects such as scratches are inevitably generated during the production process, and thus the defects need to be detected. In the existing product surface flaw detection equipment, a clamping jaw of a feeding part directly grabs a product, then the product is directly placed on a carrying disc according to a fixed position, and push rods on the periphery of the carrying disc push inwards to push the product to a middle position. Such material loading mode structure is complicated, and the mechanism part moves many, has the risk that the product drops or the push rod blocks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a product surface flaw check out test set that the structure is simpler, the material loading is more accurate.

The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

According to one aspect of the utility model, a product surface flaw detection device is provided, which comprises a feeding mechanism, a detection mechanism and a discharging mechanism, wherein the feeding mechanism is used for carrying the product to the detection mechanism, the detection mechanism is used for detecting the flaw of the product, and the discharging mechanism is used for carrying the product from the detection mechanism to the discharging position; the feeding mechanism positions the product through the visual positioning assembly during feeding.

In an embodiment, feed mechanism includes the clamping jaw module, the vision positioning subassembly includes the location camera, the location camera set up in clamping jaw module below, when clamping jaw module blowing passes through the location camera is shot and is fixed a position.

In an embodiment, the feeding mechanism further comprises a carrying module, the carrying module comprises a bearing table and a driving assembly, and after the clamping jaw module places a product on the bearing table, the driving assembly drives the bearing table to carry the product to the detection mechanism.

In one embodiment, the detection mechanism comprises a rotating assembly including a drive that drives the rotating disc to rotate, a rotating disc rotatably connected with the rotating disc, and a plurality of rotating stages that are held horizontally to carry the product as the rotating disc rotates.

In one embodiment, the number of the rotating tables is a, the rotating tables are evenly distributed at 360 °/a intervals around the rotation axis of the rotating disk, and the rotating disk rotates 360 °/a at a time.

In one embodiment, each of the rotating platforms is in transmission connection with a fixed disk, and when the rotating disk rotates, the fixed disk drives each of the rotating platforms to rotate in a reverse direction relative to the rotating disk.

In one embodiment, one of the corresponding positions of the rotating table is a first detection station, and a line scanning camera is arranged below the first detection station and used for scanning the lower surface of the product.

In one embodiment, the line scan camera is disposed on the driving assembly.

In an embodiment, at least one of the corresponding positions of the rotating table is a second detection station, and a second visual detection assembly is arranged on the side surface of the second detection station and used for detecting defects on the side surface of the product.

In an embodiment, at least one of the corresponding positions of the rotating table is a third detection station, and a third visual detection assembly is arranged above the third detection station and used for detecting defects on the upper surface of the product; and fourth visual detection assemblies are arranged obliquely above and below the third station and used for detecting defects at the top and the bottom of the product.

The embodiment of the utility model provides a beneficial effect is: through setting up the visual detection subassembly, utilize the guide material loading of visual positioning technique, can directly place the correct position with the product, do not need extra push rod mechanism, the structure is simpler, and it is higher to place the rate of accuracy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

The above features and advantages of the present invention will be better understood upon reading the detailed description of embodiments of the present disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components having similar associated characteristics or features may have the same or similar reference numerals.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of a feed mechanism according to an embodiment of the present application;

FIG. 3 is a side view of a feed mechanism of an embodiment of the present application;

FIG. 4 is a schematic perspective view of a detecting mechanism according to an embodiment of the present application;

FIG. 5 is a schematic side view of a detection mechanism according to an embodiment of the present application;

FIG. 6 is an enlarged view of a portion of a second visual inspection assembly in accordance with an embodiment of the present application;

FIG. 7 is a perspective view of a rotating assembly according to an embodiment of the present application;

FIG. 8 is a perspective view of a turntable according to an embodiment of the present application;

FIG. 9 is a schematic diagram of a distribution of inspection stations according to an embodiment of the present application;

wherein: 1-a feeding mechanism; 11-a gripper module; 111-YZ axis driving module; 112-a clamping jaw; 113-a light source; 12-a handling module; a 121-X axis drive module; 122-a lifting cylinder; 123-a bearing table; 13-positioning the camera; 2-a detection mechanism; 21-a rotating assembly; 211-a driver; 212-rotating disk; 213-a rotating table; 231-a base; 232-a limiting member; 214-a belt; 215-fixed disk; 221-line scan camera; 222-a second visual detection component; 223-a third visual detection component; 224-a fourth visual detection component; 3-a blanking mechanism; 4-products; a, detecting a first station; b, detecting a second station; c, detecting a third station; d, detecting a station IV; e-detecting a station five; f-detecting station six.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It is noted that the aspects described below in connection with the figures and the specific embodiments are only exemplary and should not be understood as imposing any limitation on the scope of the present invention.

As shown in fig. 1, the embodiment of the present application provides a product surface flaw detection device, which includes a feeding mechanism 1, a detection mechanism 2, and a discharging mechanism 3. Wherein, feed mechanism 1 is used for carrying the product to detection mechanism 2, and detection mechanism 2 is used for carrying out the flaw to the product and detects, and unloading mechanism 3 is used for carrying the product to unloading department from detection mechanism 2. A main improvement point of this equipment lies in that feed mechanism 1 fixes a position the product through the vision locating component when the material loading, directly places the product to the exact position, does not need extra push rod mechanism, and the structure is simpler, and it is higher to place the rate of accuracy.

As shown in fig. 2 and fig. 3, in the present embodiment, the feeding mechanism 1 includes a clamping jaw module 11 and a carrying module 12, wherein the clamping jaw module 11 includes a YZ-axis driving module 111 and a clamping jaw 112, and the carrying module 12 includes an X-axis driving module 121, a lifting cylinder 122 and a loading platform 123. During feeding, the clamping jaw 112 puts the product 4 on the bearing platform 123, and the X-axis driving module 121 and the lifting cylinder 122 cooperate to put the product 4 on the detection mechanism 2. The positioning is performed by the visual positioning assembly when the jaws 112 place the product 4 on the carrier table 123. The visual positioning assembly comprises a positioning camera 221, wherein the positioning camera 221 is arranged below the clamping jaw module 11 and used for photographing and positioning during discharging.

The feeding mechanism 1 may be in other forms, such as only using the clamping jaw module, or the clamping jaw module is driven by XZ axis, and the conveying module is driven by Y axis. In the present embodiment, the reason why the feed mechanism 1 is divided into the gripper module 11 movable in the YZ direction and the transport module 12 movable in the X direction is to cooperate with the detection mechanism 2 of the ferris wheel type structure, and since the detection mechanism 2 of the ferris wheel type structure has a plurality of rotating tables and the lifting and lowering operation of the gripper is affected, the transport module is provided separately and the feeding is performed from the X direction.

Preferably, in order to ensure sufficient illumination for the positioning of the photographing, a light source may be provided above the positioning camera 221. In this embodiment, two strip light sources 113 arranged at 90 ° are provided on the side of the clamping jaw 112, so as to be able to move with the clamping jaw 112 and provide illumination for the camera 221.

The existing assembly line type detection equipment has long transverse logistics line and large occupied space. The assembly line speed is relatively fast, and the product can slide on the assembly line, causes offset and wearing and tearing, influences the detection.

Another improvement of the apparatus is therefore the ferris wheel type detection mechanism 2. As shown in fig. 4 to 7, the detection mechanism 2 comprises a rotation assembly 21 and a corresponding detection assembly, wherein the rotation assembly 21 comprises a driver 211 (e.g. a motor), a rotation disc 212 and several rotation stages 213. As shown in FIG. 7, the rotary disk 212 includes a plurality of cantilevered ends, and a rotary table 213 is rotatably coupled to each of the cantilevered ends. When the driver 211 drives the rotating disc 212 to rotate, the rotating disc 213 also needs to rotate in the opposite direction to maintain a horizontal state for carrying the product.

In the present embodiment, the number of the rotating stages 213 is 6, the rotating stages 213 are uniformly distributed around the rotating shaft of the rotating disk 212 at intervals of 60 °, and the rotating disk 212 rotates 60 ° at a time. Of course, the number of the rotating stages 213 may be adjusted as necessary.

To achieve the reverse rotation of each turntable 213, each turntable 213 may be drivingly connected to a stationary platen 215. In this embodiment, each of the rotating table 213 and the fixed table 215 is driven by a belt 214. When the rotating disc 212 rotates, the fixed disc 215 rubs against the belt 214, thereby rotating each rotating disc 213 in a reverse direction relative to the rotating disc 212. It is easy to understand that other transmission methods such as gears, chains and the like can also be adopted for transmission.

As shown in fig. 8, a base 231 for supporting the product is disposed on the rotating table 213, and stoppers 232 for fixing the product 4 are disposed at both ends of the base 231. The base 231 is hollow so that the platform 123 of the carrying module 12 can be lowered from above the base 231 to place the product 4 on the base 231.

In a possible embodiment, one of the positions corresponding to the rotating table 213 is a first inspection station, a line scan camera 221 is disposed below the first inspection station, and the line scan camera 221 is used for scanning the lower surface of the product to detect whether there is a defect.

In order to simplify the apparatus structure, the line scan camera 221 may be disposed on the X-axis driving module 121 of the carrying module 12, so that a driving structure of the line scan camera 221 need not be separately provided.

In a possible embodiment, at least one of the corresponding positions of the rotating table 213 is a second inspection station, and a second visual inspection assembly 222 is disposed at a side of the second inspection station, and the second visual inspection assembly 222 is used for inspecting defects on a side of the product. As shown in fig. 6, the second visual inspection assembly 222 may include two sets of visual inspection hardware, each set including a prism, a light source, a camera, and the like. Both sets of visual inspection hardware are perpendicular to the rotating disk 212. In order not to influence the rotating assembly to rotate, a set of visual detection hardware close to the inner side can be provided with a driving structure, moves towards a product when detecting, and keeps away from the product after detection is finished.

At least one of the positions corresponding to the rotating table 213 is a third detection station, a third visual detection assembly 223 is arranged above the third detection station, and the third visual detection assembly 223 comprises two sets of visual cameras for detecting and detecting defects on the upper surface of the product; and fourth visual inspection components 224 are arranged obliquely above and below the third station, and the fourth visual inspection components 224 are used for detecting defects on the top surface and the bottom surface of the product.

In this embodiment, the rotating table is provided with two second detection stations. As shown in fig. 9, the rotating mechanism 21 is sequentially provided with a first detection station a, a second detection station B, a third detection station C, a fourth detection station D, a fifth detection station E, and a sixth detection station F. The first detection station A is a feeding station and is also used as a first detection station; the second detection station B and the fourth detection station D are both second detection stations and are used for detecting two side faces of a product; the third detection station C is a third detection station; the detection station five E is a blanking station; and the detection station six F is an empty station.

The blanking mechanism 3 has the same structure as the feeding mechanism 1, and therefore, the description is omitted. The blanking mechanism 3 may not be provided with a visual positioning assembly.

The working process of the equipment is briefly described as follows:

(1) a clamping jaw in the feeding mechanism 1 grabs a product, the visual positioning assembly positions the product, and then the carrying module carries the product to a first detection station A;

(2) the rotating mechanism 2 stops rotating temporarily, and the line scanning camera moves to scan the lower surface of the product;

(3) the rotary mechanism 2 rotates the product to the second detection station B, and the visual detection assembly works to detect one side face of the product;

(4) the rotary mechanism 2 rotates the product to a detection station III C, and the visual detection assembly works to detect the defects on the upper surface of the product;

(5) the rotating mechanism 2 rotates the product to the detection station four D, and the visual detection assembly works to detect the other side face of the product;

(6) after the detection is finished, the product rotates to a detection station five E, and the blanking mechanism 3 carries the product to a blanking position according to a detection result.

To sum up, this product surface flaw check out test set has used visual positioning guide material loading, directly places the product to the exact position, does not need extra push rod mechanism, and the structure is simpler, and it is higher to place the rate of accuracy. In addition, the ferris wheel type rotating mechanism is used in the product surface flaw detection equipment, and the rotating platform for placing the product can be prevented from overturning and moving while the mechanism rotates. The rotating mechanism utilizes centrifugal force and inertia force to ensure that the product cannot move on the rotating platform, so that the position of the product is prevented from shifting, abrasion caused to the product is greatly reduced, and meanwhile, the detection error caused by the movement of the product is also avoided. The ferris wheel type rotating mechanism is adopted to replace the previous assembly line, so that the equipment structure is more compact, the equipment size is smaller, and the occupied area is reduced.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The above description is only a preferred example of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A product surface flaw detection equipment which characterized in that: the automatic product feeding device comprises a feeding mechanism, a detection mechanism and a discharging mechanism, wherein the feeding mechanism is used for carrying a product to the detection mechanism, the detection mechanism is used for detecting flaws of the product, and the discharging mechanism is used for carrying the product from the detection mechanism to a discharging position; feed mechanism fixes a position the product through the vision positioning subassembly when the material loading, feed mechanism includes the clamping jaw module, the vision positioning subassembly is including the location camera, the location camera set up in clamping jaw module below works as pass through during the clamping jaw module blowing the location of shooing is taken photo to the location camera.

2. The apparatus of claim 1, wherein: the feeding mechanism further comprises a carrying module, the carrying module comprises a bearing table and a driving assembly, the clamping jaw module is used for placing the product on the bearing table, and the driving assembly drives the bearing table to carry the product to the detection mechanism.

3. The apparatus of claim 2, wherein: the detection mechanism comprises a rotating assembly, the rotating assembly comprises a driver, a rotating disk and a plurality of rotating platforms, the driver drives the rotating disk to rotate, the rotating platforms are rotatably connected with the rotating disk, and when the rotating disk rotates, the rotating platforms are kept horizontal to bear products.

4. The apparatus of claim 3, wherein: the revolving stage quantity is a, the revolving stage centers on 360/a evenly distributed of the pivot interval of rotary disk, the rotary disk rotates 360/a at every turn.

5. The apparatus of claim 3, wherein: each revolving stage is connected with a fixed disk transmission, and when the rotary disk rotated, the fixed disk drove each revolving stage rotated for the rotary disk opposite direction.

6. The apparatus of claim 3, wherein: one in the revolving stage corresponding position is first detection station, first detection station below is provided with the line and sweeps the camera, the line is swept the camera and is used for scanning the product lower surface.

7. The apparatus of claim 6, wherein: the line scan camera is disposed on the driving assembly.

8. The apparatus of claim 3, wherein: at least one of the corresponding positions of the rotating table is a second detection station, a second visual detection assembly is arranged on the side face of the second detection station, and the second visual detection assembly is used for detecting flaws on the side face of a product.

9. The apparatus of claim 3, wherein: at least one of the corresponding positions of the rotating table is a third detection station, a third visual detection assembly is arranged above the third detection station, and the third visual detection assembly is used for detecting defects on the upper surface of a product; and fourth visual detection assemblies are arranged above and below the third detection station in an inclined manner and are used for detecting defects at the top and the bottom of the product.