CN215676901U

CN215676901U - Visual detection device

Info

Publication number: CN215676901U
Application number: CN202121293825.9U
Authority: CN
Inventors: 彭志平; 陈俊涛; 刘泉森; 黄玮文; 王平江
Original assignee: Quanzhou Huashu Robot Co ltd; Quanzhou-Hust Intelligent Manufacturing Future; Quanzhou Wangda Hardware Products Co ltd
Current assignee: Quanzhou Huashu Robot Co ltd; Quanzhou-Hust Intelligent Manufacturing Future; Quanzhou Wangda Hardware Products Co ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2022-01-28
Anticipated expiration: 2031-06-10

Abstract

The utility model discloses a visual detection device, which comprises a bearing mechanism for placing an article to be detected, a visual mechanism for acquiring and acquiring an image of the article to be detected, and a detection system for receiving and/or sending a control signal generated according to configuration information, analyzing the image of the article to be detected and judging whether the article to be detected is qualified, wherein the detection system is in communication connection with the visual mechanism. The utility model can comprehensively detect the quality of the precision product to be detected by the vision mechanism and the detection system, can realize the comprehensive detection of the shape and the size of the precision product to be detected, ensures the detection precision, does not need to adopt manpower, and has high efficiency; the utility model has simple structure, small volume and low cost, can adapt to the products to be detected with different specifications, has good universality, not only effectively reduces the device investment, but also improves the automation degree and the accuracy of detection, thereby avoiding artificial omission and reducing the labor cost; the utility model has high detection precision, stable reliability and easy operation.

Description

Visual detection device

Technical Field

The utility model relates to the technical field of detection, in particular to a visual detection device.

Background

Sheet-shaped accessories (yarn guide needles, knitting needles, sinkers, cam angles, tongue bars, sinker pieces, yarn separating plates, jacquard yarn guide needles and the like) on circular knitting machine knitting or other products are core components of a circular knitting machine device, and the requirements on the appearance size are extremely strict, so that the appearance size needs to be detected.

Most of the core accessories are manually detected at present, but the conditions of missing detection and inconsistent judgment standards exist in manual visual detection, the detection method is low in speed, low in efficiency and low in detection precision, the defects of micron and smaller size grades cannot be identified, the false detection rate and the missing detection rate are high, meanwhile, visual fatigue is easily generated in the long-time repeated working process of workers, the missing detection and the false detection can be caused, products with various specifications can be produced on one production line, and the requirements of a high-speed automatic production line cannot be met.

In view of the above, the present inventors have conducted extensive studies to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a visual detection device which is simple in structure, can simplify a detection process and improve production efficiency.

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

a visual inspection device comprises

The bearing mechanism is used for placing the product to be detected;

the vision mechanism is used for acquiring and acquiring the image of the to-be-detected product;

the detection system is used for receiving and/or sending a control signal generated according to configuration information, analyzing the image of the to-be-detected product and judging whether the to-be-detected product is qualified or not;

the detection system is in communication with the vision mechanism.

As a preferred mode of the present invention, the bearing mechanism includes a bearing motor and a bearing platform, an output shaft of the bearing motor is connected to the bearing platform, a bearing plate is disposed on the top of the bearing platform and is fixedly attached to the bearing platform, a plurality of fixing units are uniformly disposed on the bottom of the bearing platform, and the fixing units are used for adsorbing the to-be-detected item placed on the bearing plate.

As a preferable mode of the present invention, the bearing platform includes a first platform and a second platform that is erected on the first platform and connected to the first platform, the first platform is connected to an output shaft of the bearing motor, the first platform is in a disc sheet structure, and the second platform is in an annular sheet structure.

As a preferable mode of the present invention, the present invention further includes a detection system, the detection system includes an operation panel, a control system, and a display, the operation panel is used for sending signals, the control system is used for receiving signals and converting the signals into results, and the display is used for displaying the detection results.

As a preferred mode of the present invention, the fixing unit includes a magnetic adsorption component fixedly disposed at the bottom of the second platform, the magnetic adsorption component includes a base fixed at the bottom of the second platform and an electromagnet disposed on the base, a groove for placing the electromagnet is disposed on the base, and the electromagnet is in communication connection with the detection system;

and/or the fixed unit comprises a vacuum adsorption assembly fixedly arranged at the bottom of the second platform, the second platform and the bearing plate are respectively provided with a plurality of vacuumizing channels at positions corresponding to the vacuum adsorption assembly, and the vacuumizing channels are communicated with the other side of the second platform from one side of the second platform.

As a preferable mode of the present invention, the vision mechanism includes a first vision mechanism disposed on one side of the bearing mechanism, the first vision mechanism includes a first base vertically disposed on the table, a first mounting bracket disposed on the first base, a second mounting bracket disposed on the first mounting bracket, a first CCD camera disposed on the second mounting bracket, a third mounting bracket disposed on the first base, and a first camera bellows disposed on the third mounting bracket, the first mounting bracket reciprocates on the first base along a length direction of the first base, the second mounting bracket reciprocates on the first mounting bracket along a direction perpendicular to the first base, the third mounting bracket reciprocates on the first base along the length direction of the first base, and the third mounting bracket is disposed below the first mounting bracket, the sight of the first CCD camera faces downwards, the first camera bellows is a box body with an upper opening and a lower opening, the opening corresponds to the first CCD camera, and the first CCD camera is in communication connection with the control system.

As a preferable mode of the present invention, the vision mechanism includes a second vision mechanism disposed on one side of the bearing mechanism, the second vision mechanism includes a second base vertically disposed on the workbench, a fourth mounting frame disposed on the second base, a fifth mounting frame disposed on the fourth mounting frame, a second CCD camera disposed on the fifth mounting frame, and a second camera bellows disposed on the workbench, the fourth mounting frame reciprocates on the first base along a length direction of the first base, the fifth mounting frame reciprocates on the fourth mounting frame along a width direction of the first base, a line of sight of the second CCD camera faces an axial direction of the bearing platform, the second camera bellows is a box body having an open side facing the second CCD camera and an open bottom side, and the second CCD camera is in communication connection with the control system.

As a preferable mode of the present invention, the visual mechanism includes a third visual mechanism disposed on one side of the bearing mechanism, the third visual mechanism includes a third base vertically disposed on the workbench, a sixth mounting rack disposed on the third base, a seventh mounting rack disposed on the sixth mounting rack, a third CCD camera disposed on the seventh mounting rack, and a third camera bellows disposed on the workbench, the sixth mounting rack is hinged to the top of the base, the seventh mounting rack reciprocates on the sixth mounting rack along the length direction of the sixth mounting rack, the third CCD camera is implemented to face the bearing plate, the third camera bellows is a box body having an opening on one side facing the bearing plate, and the third CCD camera is in communication connection with the control system.

In a preferred embodiment of the present invention, a light source lamp is provided on a side of the third camera box away from the opening, the light source lamp being parallel to a line of sight of the third CCD camera, and an irradiation direction of the light source lamp is perpendicular to the line of sight of the third CCD camera.

In a preferred embodiment of the present invention, at least one of the visual means is provided.

By adopting the design scheme, the utility model has the beneficial effects that: the utility model can realize the comprehensive detection of the shape and the size of the precise product to be detected by comprehensively detecting the quality of the product to be detected through the vision mechanism and the detection system, ensures the detection precision, does not need to adopt manpower, and has high efficiency. The utility model has simple and compact structure, small volume and low cost, can adapt to the products to be detected with different specifications, has good universality, not only effectively reduces the device investment, but also improves the automation degree and the accuracy of detection, thereby avoiding artificial omission and reducing the labor cost. The utility model has the advantages of high detection precision, stable reliability, easy operation and lower cost, and is suitable for mass production.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is a side view of a first embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 4 is a side view of a second embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a third embodiment of the present invention;

FIG. 6 is a side view of a third embodiment of the present invention;

FIG. 7 is a schematic structural view of a third vision mechanism and a product to be inspected according to the present invention;

FIG. 8 is a schematic structural view of the present invention;

FIG. 9 is a top view of the present invention;

in the figure:

the inspection device comprises a workbench 1, a bearing mechanism 2, a bearing motor 21, a bearing platform 22, a first platform 221, a second platform 222, a paper board 223, a bearing plate 23, a magnetic adsorption component 24, a vision mechanism 3, a first vision mechanism 31, a first base 311, a first mounting frame 312, a first knob 3121, a second mounting frame 313, a second knob 3131, a first CCD camera 314, a third mounting frame 315, a third knob 3151, a first camera bellows 316, a second vision mechanism 32, a second base 321, a fourth mounting frame 322, a fourth knob 3221, a fifth mounting frame 323, a fifth knob 3231, a second CCD camera 324, a second camera bellows 325, a third vision mechanism 33, a third base 331, a sixth mounting frame 332, a seventh mounting frame 333, a sixth knob 3331, a third CCD camera 334, a third camera bellows 335, a third light source 336 and an article to be inspected 10 and burr 10'.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Refer to fig. 1 to 9

A visual detection device comprises a workbench 1, a bearing mechanism 2 used for placing an article 10 to be detected, a detection system (not shown in the figure) and a visual mechanism 3 used for acquiring an image of the article 10 to be detected, wherein the bearing mechanism 2 is arranged on the workbench 1.

The detection system is used for receiving and/or sending a control signal generated according to the configuration information, analyzing the image of the product 10 to be detected and judging whether the product 10 to be detected is qualified or not, and comprises an operation panel (not shown in the figure), a control system (not shown in the figure) and a display (not shown in the figure), wherein the operation panel is used for sending the signal, the control system is used for receiving the signal and converting the signal into a result, and the display is used for displaying the detection result;

the vision mechanism 3 is used for acquiring and acquiring an image of the to-be-detected product 10;

the control system is in communication with the vision mechanism 3.

The bearing mechanism 2 comprises a bearing motor 21 and a bearing platform 22, an output shaft of the bearing motor 21 is connected with the bearing platform 22, the bearing motor 21 is in communication connection with the operation panel, and the bearing platform 22 is driven to rotate or move by driving the bearing motor 21. It should be noted that the loading platform 22 in this embodiment may be any type of loading platform, such as an elongated loading platform 22 or an indexing turntable type loading platform 22.

The utility model will be described in further detail below with a load-bearing platform 22 in the form of an indexing dial.

The bearing platform 22 comprises a first platform 221 connected with the output shaft of the bearing motor 21 and a second platform 222 spanned on the first platform 221 and connected with the first platform 221, wherein the first platform 221 is in a disc sheet structure, and the second platform 222 is in an annular sheet structure.

The top of the second platform 222 is provided with a bearing plate 23 attached and fixed with the second platform 222, the bottom of the second platform 222 is uniformly provided with a plurality of fixing units, the fixing units are used for adsorbing the to-be-detected article 10 placed on the bearing plate 23, and the fixing units are in communication connection with the operation panel. Preferably, the carrier plate 23 in this embodiment is a light-transmitting plate. In particular, the carrier plate 23 is made of transparent organic glass.

The fixing unit comprises a magnetic adsorption component 24 fixedly arranged at the bottom of the second platform 222, the magnetic adsorption component 24 comprises a base (not shown in the figure) fixed at the bottom of the second platform and an electromagnet (not shown in the figure) arranged on the base, a groove (not shown in the figure) for placing a power supply magnet is formed in the base, and the electromagnet is in communication connection with the operation panel. It should be noted that the sample 10 adopted in the present embodiment is usually made of ferromagnetic material, and the electromagnet can fix the sample 10 made of ferromagnetic material on the second platform 222 by adsorption, so as to prevent the sample 10 from shifting during the subsequent detection process and affecting the measurement result. The magnetic adsorption component 24 in this embodiment may also be a magnet, as long as it can generate an adsorption fixing effect on the object 10 to be detected. Most preferably, the electromagnet is adopted, the magnetic attraction is large, the magnetism can be controlled through the on-off of current, and the workpiece is convenient to take and place.

It should be noted that, the fixing unit in this embodiment may also include a vacuum adsorption assembly (not shown in the figure) fixed at the bottom of the second platform 222, the vacuum adsorption assembly is in communication connection with the operation panel, the vacuum adsorption assembly includes a vacuum pump and a vacuum pipeline connected with the vacuum pump, a plurality of vacuum channels (not shown in the figure) are respectively disposed at positions of the second platform 222 and the bearing plate 23 corresponding to the vacuum adsorption assembly, the vacuum channels penetrate to the top of the second platform 222 along the bottom of the second platform 222, and the vacuum pipeline is connected with the vacuum channels. Adopt the vacuum adsorption subassembly can carry out vacuum adsorption to examine article 10 to non-ferromagnetic material and fix, through operating panel is right the vacuum pump carries out data transmission, the vacuum pump is right vacuum pipeline carries out the negative pressure and adsorbs for the article 10 of examining that sets up on second platform 222 is adsorbed and is compressed tightly on second platform 222, prevents in the follow-up testing process that the article 10 of examining from taking place the skew and influencing the measuring result.

In this embodiment, the fixing unit may fix the to-be-detected article 10 by using a magnetic adsorption assembly 24, or may fix the to-be-detected article by using the vacuum adsorption assembly; the magnetic adsorption component 24 can be used in cooperation with the vacuum adsorption component, so that the to-be-detected product 10 can be better attached to the second platform 222, the dual stress effect of the to-be-detected product 10 is achieved, and the positioning stability and the positioning effect are greatly improved.

Preferably, the present embodiment further describes the present invention using a magnetic attachment assembly 24.

The bearing plate 23 is arranged at the top of the second platform 222, the to-be-detected product 10 is arranged on the table top of the bearing plate 23, and the electromagnet is arranged at the bottom of the second platform 222, so that zero contact between the electromagnet and the to-be-detected product 10 is realized, and inaccuracy of detection data caused by clamping or fixing of the to-be-detected product 10 and other factors is avoided.

And the electromagnets are in communication connection with the control panel. When the to-be-detected product 10 is placed on the bearing plate 23 or when each CCD camera (described in detail below) in the vision mechanism 3 shoots and collects images of the to-be-detected product 10, the control panel sends a power-off signal to the plurality of electromagnets, no adsorption exists between the electromagnets and the to-be-detected product 10, the to-be-detected product 10 is in a free state, and the real appearance profile of the to-be-detected product 10 is expressed to the maximum extent during subsequent detection; when the to-be-detected product 10 rotates along with the bearing plate 23 on the bearing plate 23, the control panel sends an electrifying signal to the electromagnet, at the moment, the electromagnet adsorbs and fixes each to-be-detected product 10 arranged on the corresponding position, so that the to-be-detected product 10 is not easy to slide when rotating, the to-be-detected product 10 is staggered with the position fixation of the station in the subsequent shooting detection, the CCD camera local detection is not convenient, and the reliability of the precision detection quality of the to-be-detected product 10 is ensured. The electromagnet is in communication connection with the control panel, and the rapid power-off of the electromagnet can be realized.

Be provided with the cardboard region that is used for distinguishing waiting to examine article 10 outer contour line on the second platform 222, be provided with cardboard 223 in the cardboard region, the cardboard region is a plurality of and one-to-one setting with the electro-magnet, and it is worth explaining, the outer contour line that is used for distinguishing waiting to examine article 10 is set up to the cardboard 223 of this embodiment, mainly depends on the colour that waits to examine article 10, therefore cardboard 223 as long as adopt with wait to examine article 10 and differ great colour can. The second platform 222 corresponds to the side of the cardboard region is further provided with a notch (not shown in the figure) for replacing the cardboard 223, and the cardboard 223 can be replaced more conveniently if the design mainly detects the products 10 to be inspected with different specifications and colors.

The utility model has the beneficial effects that: the electromagnet is fixedly adsorbed with the article 10 to be detected, so that the article 10 to be detected is relatively fixed with the station position and can not be dislocated when moving in subsequent visual detection, the positioning stability and the positioning effect of the article 10 to be detected are greatly improved, and the reliability of the precision detection quality of the article 10 to be detected is ensured; through the fixing unit arranged at the bottom of the bearing platform 22 and the to-be-detected product 10 arranged at the top of the bearing platform 22, the zero contact of the to-be-detected product 10 is realized without directly contacting the to-be-detected product, and the inaccuracy of subsequent detection data caused by clamping or fixing the to-be-detected product 10 and other factors is avoided. The utility model can adapt to the products to be detected with different specifications, has good universality, not only can effectively reduce the device investment, but also greatly improves the detection efficiency.

Example one

Refer to fig. 1 to 2

The vision mechanism 3 includes a first vision mechanism 31 disposed on one side of the bearing mechanism 2, the first vision mechanism 31 includes a first base 311 vertically disposed on the workbench 1, a first mounting bracket 312 disposed on the first base 311, a second mounting bracket 313 disposed on the first mounting bracket 312, and a first CCD camera 314 disposed on the second mounting bracket 313, the first mounting bracket 312 reciprocates on the first base 311 along a length direction of the first base 311, and the second mounting bracket 312 reciprocates on the first mounting bracket 312 along a direction perpendicular to the first base 311.

A first rack (not shown in the figure) is arranged on the first base 311, a first gear (not shown in the figure) matched with the first rack is arranged on the first mounting bracket 312, the first gear is meshed with the first rack, and a first knob 3121 connected with the first gear shaft is arranged on one side of the first mounting bracket 312; a second rack (not shown in the figure) is arranged on the first mounting frame 312, a second gear (not shown in the figure) matched with the second rack is arranged on the second mounting frame 313, the second gear is meshed with the second rack, and a second knob 3131 connected with the second gear in a shaft way is arranged on one side of the second mounting frame 313; the line of sight of the first CCD camera 314 is always facing downward to adjust the lateral position and the longitudinal position of the first CCD camera 314 by the first knob 3121 and the second knob 3131, the first CCD camera 314 being in communication with the control system.

Further, first vision mechanism 31 still includes third mounting bracket 315 and the first camera bellows 316 of setting on third mounting bracket 315 that sets up on first base 311, and third mounting bracket 315 sets up the below at first mounting bracket 312, be provided with on the third mounting bracket 315 with the third gear (not shown in the figure) of first rack looks adaptation, one side of third mounting bracket 315 be provided with third knob 3151 that third gear shaft is connected, the second gear with first rack meshes mutually, and first camera bellows 316 is upper and lower open-ended box, the opening corresponds first CCD camera 314 and waits to examine article 10 setting.

Preferably, the vision mechanism 3 further includes a first light source lamp (not shown in the figure) parallel to the line of sight of the first CCD camera 314, and preferably, the first light source lamp may be disposed in the cardboard region, the irradiation direction of the first light source lamp faces the first CCD camera 314, the first dark box 316 is for blocking external light, and the first light source lamp is for lighting the object 10 to be inspected when the first dark box 316 covers the object 10 to be inspected, so as to prevent insufficient light and unclear photographing.

First camera bellows 316 is upper and lower open-ended camera bellows, the sight of first CCD camera 314 is towards the opening part of first camera bellows 316, first camera bellows 316 sets up directly over load-bearing platform 22, when examining article 10 and remove to the opening part of first camera bellows 316, first CCD camera 314 shoots the photo, can keep out outlying light around first camera bellows 316, avoid taking place external condition such as exposure for it is more accurate to shoot data, first CCD camera 314 with control system communication connection, when the picture of shooing this moment, first CCD camera 314 cross communication connection and send to control system, and then judge whether qualified products, and show the result on the display screen. The first CCD camera 314 performs an overhead image detection of the object 10 to be inspected.

Example II, refer to FIGS. 2 to 3

The vision mechanism 3 may also include a second vision mechanism 32 disposed on one side of the bearing mechanism 2, the second vision mechanism 32 includes a second base 321 vertically disposed on the workbench 1, a fourth mounting bracket 322 disposed on the second base 321, a fifth mounting bracket 323 disposed on the fourth mounting bracket 322, and a second CCD camera 324 disposed on the fifth mounting bracket 323, the fourth mounting bracket 322 reciprocates on the first base 311 along the length direction of the first base 311, and the fifth mounting bracket 323 reciprocates on the fourth mounting bracket 322 along the width direction of the first base 311.

A third rack (not shown in the figure) is arranged on the second base 321, a third gear (not shown in the figure) corresponding to the third rack is arranged on the fourth mounting rack 322, the third gear is meshed with the second rack, and a fourth knob 3221 connected with the third gear is arranged on one side of the fourth mounting rack 322; a fourth rack (not shown in the figure) is arranged on the fourth mounting rack 322, a fourth gear (not shown in the figure) matched with the fourth rack is arranged on the fifth mounting rack 323, the fourth gear is meshed with the fourth rack, and a fifth knob 3231 connected with the fourth gear shaft is arranged on one side of the fifth mounting rack 323; the line of sight of the second CCD camera 324 is always directed toward the axial direction of the carrying platform 22, so that the transverse position and the longitudinal position of the second CCD camera 324 can be adjusted by the fourth knob 3221 and the fifth knob 3231, and the second CCD camera 324 is connected with the control system in a communication manner.

Further, the second vision mechanism 32 further includes a second camera bellows 325 disposed on the working platform 1, the second camera bellows 325 is a box body having an opening on one side facing the second CCD camera 324 and the other side facing downward, and the second CCD camera 324 and the second camera bellows 325 are disposed on two sides of the bearing platform 22 (specifically, disposed on the inner ring and the periphery of the annular second platform 222). That is, when the object 10 to be inspected moves to the bottom opening of the second dark box 325, the second CCD camera 324 takes a picture, and the second dark box 325 can resist peripheral light, thereby avoiding external conditions such as exposure, and making the shooting data more accurate.

Preferably, the vision mechanism 3 further includes a second light source lamp (not shown in the figure) parallel to the line of sight of the second CCD camera 324, the second light source lamp is disposed on one side of the second dark box 325 departing from the to-be-detected object 10, the irradiation direction of the second light source lamp faces the second CCD camera 324, the second dark box 325 is used for blocking external light, and the second light source lamp is used for lighting the to-be-detected object 10 when the second dark box 325 covers the to-be-detected object 10, so as to prevent insufficient light and cause unclear shooting.

When the to-be-inspected product 10 placed on the bearing plate 23 moves to the sight range of the second CCD camera 324, the second CCD camera 324 shoots a picture, the periphery of the second camera bellows 325 can resist peripheral light, so that external conditions such as exposure are avoided, the shot data are more accurate, the second CCD camera 324 is in communication connection with the control system, and when the picture at the moment is shot, the second CCD camera 324 is sent to the control system through communication connection, so that whether the to-be-inspected product is a qualified product is judged, and the result is displayed on the display screen. The second CCD camera 324 performs image detection of a side view of the article to be inspected 10.

EXAMPLE III

Refer to fig. 5 to 7

The vision mechanism 3 includes a third vision mechanism 33 disposed on one side of the carrying mechanism 2, the third vision mechanism 33 includes a third base 331 vertically disposed on the workbench 1, a sixth mounting bracket 332 disposed on the third base 331, a seventh mounting bracket 333 disposed on the sixth mounting bracket 332, and a third CCD camera 334 disposed on the seventh mounting bracket 333, the sixth mounting bracket 332 is hinged to the top of the third base 331, and the seventh mounting bracket 333 reciprocates on the sixth mounting bracket 332 along the length direction of the sixth mounting bracket 332.

The top of the third base 331 is provided with a hinge structure (not shown) hinged to the sixth mounting bracket 332, and it should be noted that the hinge structure in this embodiment can be a commercially available hinge structure, as long as the sixth mounting bracket 332 can controllably and freely rotate on the top of the third base 331, which is not described in detail herein. A fifth rack (not shown in the figure) is arranged on the sixth mounting frame, a fifth gear (not shown in the figure) matched with the fifth rack is arranged on the seventh mounting frame 333, the fifth gear is meshed with the fifth rack, and a sixth knob 3331 connected with the fifth gear shaft is arranged on one side of the seventh mounting frame 333. The third CCD camera 334 is implemented to face the direction of the carrying platform 22 all the time, so as to adjust the transverse position and the longitudinal position of the third CCD camera 334 through the hinge structure and the sixth knob 3331, and the third CCD camera 334 is in communication connection with the control system.

Further, the third vision mechanism 33 further includes a third camera 335 disposed on the workbench 1, the third camera 335 is disposed on the workbench 1 at a certain angle, the third camera 335 is a box body with an opening facing the carrying platform 22, and the third CCD camera 334 and the third camera 335 are respectively disposed on two sides of the carrying platform 22 (specifically, respectively disposed on the inner ring and the periphery of the annular second platform 222).

The third camera box 335 is open at one side facing the third CCD camera 334, and the third CCD camera 334 and the third camera box 335 are respectively disposed at two sides of the loading platform 22 (specifically, respectively disposed at the inner ring and the outer ring of the cheerful second platform 222). That is, when the object 10 to be inspected moves to the opening of the third camera bellows 335, the third CCD camera 334 shoots a picture, and the third camera bellows 335 can resist the surrounding light, thereby avoiding the occurrence of external conditions such as exposure, and making the shooting data more accurate.

Preferably, a third light source 336 is disposed on a side of the third dark box 335 away from the third CCD camera 334, the third light source 336 is disposed on a side of the third dark box 335 away from the object 10, an irradiation direction of the third light source 336 faces the third CCD camera 334, and the third dark box 335 is for blocking external light.

Referring to fig. 7: the line of sight of the third CCD camera 334 faces the object 10 to be inspected on the second platform 222 at a certain angle, and the line of sight of the third CCD camera 334 is symmetrical to the light emitted from the third light source lamp 336 in the vertical direction. That is, when the to-be-detected product 10 moves to the sight line range of the third CCD camera 334, the third CCD camera 334 takes a picture, the third light source lamp 336 irradiates the to-be-detected product 10, and at this time, the to-be-detected product 10 projects a shadow portion (i.e., a section a in fig. 7) of the to-be-detected product 10 (burr 10') on the paper board 223, and then the third CCD camera 334 takes a picture of the shadow portion. The burr 10' in this embodiment is a burr or flash formed by the protruding of the sample 10 from the sample 10. The third CCD camera 334 is in communication connection with the detection system, and when the picture at this time is taken, the third CCD camera 334 is sent to the detection system through communication connection, and then the detection system judges whether the picture is a qualified product. The third CCD camera 334 is used to acquire a shadow image (i.e., an image of a segment a in fig. 3) of the burr 10' of the product to be inspected 10. The third CCD camera 334 detects the image of the burr 10' of the object 10 to be detected, and the detection result of the third CCD camera 334 is sent to the detection system.

Refer to fig. 8 to 9

At least one vision mechanism 3, and in this embodiment, 5, specifically, 2

first vision mechanisms

31, 2

second vision mechanisms

32, and 1 third vision mechanism 33 may be provided.

Specifically, the distance between the first CCD camera 314 and the object 10 to be inspected is greater than the distance between the second first CCD camera 314 and the object 10 to be inspected, and the specific phase difference distance can be adjusted according to actual conditions. Namely, the first vision mechanism 31 can realize the global overlook image detection of the article to be detected 10, and the second first vision mechanism 32 can realize the further accurate local overlook image detection of the important area in the article to be detected 10; the distance between the first second CCD camera 324 and the object 10 to be inspected is greater than the distance between the second CCD camera 324 and the object 10 to be inspected, and the specific difference distance can be adjusted according to the actual situation. Namely, the first second vision mechanism 32 can realize the image detection of the global side view of the article to be detected 10, and the second vision mechanism 32 can realize the further accurate local side view image detection of the important area in the article to be detected 10; the third CCD camera 334 detects the shadow of the burr 10' of the object 10 to be inspected, and recognizes the size of the burr according to the size of the shadow, thereby detecting the three-dimensional shadow of the burr in the important area of the object 10 to be inspected.

And the detection result of each CCD camera is sent to a detection system. The detection system receives the images of the CCD cameras and judges whether the product to be detected 10 is qualified or not by combining the product of the part standard component. The surface of the article 10 to be inspected is inspected for the presence of defects, including but not limited to scratches, tool marks, pits, burrs, rusts, etc. The embodiment can realize that the precision zero is examined shape, the size of examining article 10 and is detected comprehensively, guarantees the precision that detects, need not to adopt the manual work, and is efficient.

The working process is as follows:

1: placing the product to be inspected 10 on the carrier plate 23;

2: pressing a start button on the operation panel, electrifying the magnetic adsorption element 24 to generate magnetism, and tightly adsorbing the to-be-detected product 10 by the electromagnet; meanwhile, the bearing motor 21 is driven to rotate to drive the bearing platform 22 to rotate, so that the to-be-detected product 10 placed on the bearing plate 23 can sequentially rotate to the sight line working area of the first CCD camera 314, the sight line working area of the second CCD camera 324 and the sight line working area of the third CCD camera 334;

3: the first CCD camera 314, the second CCD camera 324, and the third CCD camera 334 respectively collect images of the article to be inspected 10 (it is worth explaining that when each CCD camera collects images, the magnetic adsorption component 24 is in a power-off state), and send the collected data to the detection system;

4: the control system converts the pulse signals received by the first CCD camera 314, the second CCD camera 324 and the third CCD camera 334 into digital signals and transmits the digital signals to the display screen, and the display screen displays the detection results;

5: pressing the stop button on the operating panel de-energizes the magnetic attraction assembly 24 and removes the workpiece.

The utility model can comprehensively detect the quality of the precise product to be detected 10 by the vision mechanism 3 and the detection system, can realize the comprehensive detection of the shape and the size of the precise product to be detected 10, ensures the detection precision, does not need to adopt manpower, and has high efficiency. The utility model has simple and compact structure, small volume and low cost, can adapt to products to be detected 10 with different specifications, has good universality, not only effectively reduces the device investment, but also improves the automation degree and the accuracy of detection, thereby avoiding artificial omission and reducing the labor cost.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A visual inspection device, characterized by: comprises that

The bearing mechanism is used for placing the product to be detected;

the workbench is used for bearing the bearing mechanism, the vision mechanism and the detection system;

the detection system is in communication with the vision mechanism.

2. A visual inspection device according to claim 1, wherein: the bearing mechanism comprises a bearing motor and a bearing platform, an output shaft of the bearing motor is connected with the bearing platform, a bearing plate which is fixedly attached to the bearing platform is arranged at the top of the bearing platform, a plurality of fixing units are uniformly arranged at the bottom of the bearing platform, and the fixing units are used for adsorbing and placing the articles to be detected on the bearing plate.

3. A visual inspection apparatus according to claim 2, wherein: the bearing platform comprises a first platform and a second platform which is erected on the first platform and connected with the first platform, the first platform is connected with an output shaft of the bearing motor, the first platform is of a disc sheet structure, and the second platform is of an annular sheet structure.

4. A visual inspection device according to claim 3, wherein: the detection system comprises an operation panel, a control system and a display, the operation panel is used for sending signals, the control system is used for receiving the signals and converting the signals into results, and the display is used for displaying the detection results.

5. A visual inspection device according to claim 4, wherein: the fixing unit comprises a magnetic adsorption component fixedly arranged at the bottom of the second platform, the magnetic adsorption component comprises a base fixed at the bottom of the second platform and an electromagnet arranged on the base, a groove for placing the electromagnet is formed in the base, and the electromagnet is in communication connection with the detection system;

6. A visual inspection device according to claim 4, wherein: the vision mechanism comprises a first vision mechanism arranged on one side of the bearing mechanism, the first vision mechanism comprises a first base vertically arranged on the workbench, a first mounting frame arranged on the first base, a second mounting frame arranged on the first mounting frame, a first CCD camera arranged on the second mounting frame, a third mounting frame arranged on the first base and a first camera bellows arranged on the third mounting frame, the first mounting frame reciprocates on the first base along the length direction of the first base, the second mounting frame reciprocates on the first mounting frame along the direction vertical to the first base, the third mounting frame reciprocates on the first base along the length direction of the first base, and the third mounting frame is arranged below the first mounting frame, the sight of the first CCD camera faces downwards, the first camera bellows is a box body with an upper opening and a lower opening, the opening corresponds to the first CCD camera, and the first CCD camera is in communication connection with the control system.

7. A visual inspection device according to claim 6, wherein: the vision mechanism comprises a second vision mechanism arranged on one side of the bearing mechanism, the second vision mechanism comprises a second base vertically arranged on the workbench, a fourth mounting rack arranged on the second base, a fifth mounting rack arranged on the fourth mounting rack, a second CCD camera arranged on the fifth mounting rack and a second camera bellows arranged on the workbench, the fourth mounting rack reciprocates on the first base along the length direction of the first base, the fifth mounting rack reciprocates on the fourth mounting rack along the width direction of the first base, the sight of the second CCD camera faces the axis direction of the bearing platform, the second camera bellows is a box body which is open at one side facing the second CCD camera and one side of the bottom of the second camera bellows, and the second CCD camera is in communication connection with the control system.

8. A visual inspection device according to claim 4, wherein: the vision mechanism is including setting up bear the third vision mechanism of mechanism one side, third vision mechanism is including setting up perpendicularly third base on the workstation, set up and be in sixth mounting bracket on the third base, setting are in seventh mounting bracket, setting on the sixth mounting bracket are in third CCD camera and setting on the seventh mounting bracket are in third camera bellows on the workstation, the sixth mounting bracket with the top of base is articulated mutually, the seventh mounting bracket is followed the length direction of sixth mounting bracket is in do back and forth movement on the sixth mounting bracket, the realization orientation of third CCD camera the direction of loading board, the third camera bellows be for facing one side of loading board is the box of opening form, the third CCD camera with control system communication is connected.

9. A visual inspection device according to claim 8, wherein: and a light source lamp which is parallel to the sight line of the third CCD camera is arranged on one side of the third camera bellows away from the opening, and the irradiation direction of the light source lamp is vertical to the sight line of the third CCD camera.

10. A visual inspection device according to any one of claims 6 to 9, wherein: the visual mechanism is at least one.