CN218037590U

CN218037590U - Part surface defect detection device

Info

Publication number: CN218037590U
Application number: CN202222370634.9U
Authority: CN
Inventors: 方祥; 邵东镇
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2022-12-13
Anticipated expiration: 2032-09-05

Abstract

The utility model provides a part surface defect detection device, which comprises a detection chamber, a dust removal mechanism, a display and at least one automatic optical detection piece, wherein the detection chamber comprises a transmission assembly and a detection cavity; the transmission assembly is used for conveying the parts to the detection cavity; the automatic optical detection piece can reciprocate in the detection cavity along the conveying direction of the transmission assembly, and collects images of the surface of the part to obtain the defects of the surface of the part; the display is electrically connected with the automatic optical detection piece and is used for displaying the defects on the surface of the part; the dust removal mechanism can reciprocate in the detection cavity along the conveying direction so as to remove dust and foreign matters on the surface of the part. The utility model provides a part surface defect detection device can detect and show the defect on part surface to and the operation of removing dust is gone on simultaneously, and labour saving and time saving has improved detection efficiency.

Description

Part surface defect detection device

Technical Field

The utility model relates to a backlight unit detection area especially relates to a part surface defect detection device.

Background

The liquid crystal display panel comprises a backlight module which is used for supplying sufficient light sources with uniform brightness and distribution, so that the liquid crystal display panel can normally display images. Backlight unit includes diaphragm and backplate, and defects such as foreign matter and fish tail appear easily in the diaphragm.

In the related technology, the detection is carried out manually, the flashlight and the light are used for lighting, the defects of foreign matters, scratches and the like of the diaphragm are identified by human eyes, and dust on the diaphragm is cleaned manually by using dust-free cloth.

However, the above-mentioned method is not only time-consuming and labor-consuming, but also inefficient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a part surface defect detection device solves among the prior art diaphragm defect detection and wastes time and energy, and the problem that detection efficiency is low.

The utility model provides a part surface defect detection device, which comprises a detection chamber, a dust removal mechanism, a display and at least one automatic optical detection piece, wherein the detection chamber comprises a transmission assembly and a detection cavity, and the transmission assembly, the automatic optical detection piece and the dust removal mechanism are all positioned in the detection cavity;

the transmission assembly is used for conveying the parts to the detection cavity;

the automatic optical detection piece can reciprocate in the detection cavity along the conveying direction of the transmission assembly, and collects images of the surface of the part to obtain the defects of the surface of the part;

the display is electrically connected with the automatic optical detection piece and used for displaying the defects on the surface of the part;

the dust removal mechanism can reciprocate in the detection cavity along the conveying direction so as to remove dust and foreign matters on the surface of the part.

In a possible implementation manner, the number of the automatic optical detection pieces of the part surface defect detection device provided by the utility model is at least two, the automatic optical detection pieces are sequentially arranged side by side along the width direction of the detection cavity, and the length direction of the detection cavity is consistent with the conveying direction;

the distance between two adjacent automatic optical detection pieces is adjustable.

In a possible implementation manner, the device for detecting surface defects of parts provided by the present invention further comprises a driving mechanism, wherein the driving mechanism comprises a supporting plate, two first driving assemblies and at least one second driving assembly;

the detection chamber also comprises a first support frame, and the first support frame is positioned in the detection cavity; the two first driving assemblies are connected to the first support frame, the support plate is connected between the two first driving assemblies, and the first driving assemblies are used for driving the support plate to reciprocate along the conveying direction;

the second driving assembly is arranged on the supporting plate, the automatic optical detection pieces are arranged on the second driving assembly, and the second driving assembly is used for adjusting the distance between every two adjacent automatic optical detection pieces.

In a possible implementation manner, in the device for detecting surface defects of parts provided by the present invention, the first driving assembly is one of a linear module, a linear guide rail and a ball screw linear transmission assembly;

the second driving assembly is one of a linear module, a linear guide rail and a ball screw linear transmission assembly.

In a possible implementation manner, the utility model provides a part surface defect detection device, actuating mechanism still include two at least vertical drive assembly, and automatic optical detection spare passes through vertical drive assembly with the second drive assembly and is connected, and vertical drive assembly is used for driving automatic optical detection spare and removes along vertical direction.

In a possible implementation manner, the device for detecting surface defects of parts provided by the utility model further comprises a controller and a scanning element, wherein the scanning element and the transmission assembly are both electrically connected with the controller, and the scanning element is positioned in the detection cavity;

the scanning piece is used for detecting a preset mark on the part, and the controller controls the transmission assembly to stop when the scanning piece detects the preset mark.

In a possible implementation manner, the utility model provides a part surface defect detection device, scanning piece are the line scanning camera, and the quantity of line scanning camera is at least two.

In a possible implementation manner, the utility model provides a part surface defect detection device, dust removal mechanism include connecting plate, dust removal subassembly and two third drive assembly, and the dust removal subassembly sets up on the connecting plate, and the connecting plate all is connected with two third drive assembly, and third drive assembly is used for removing dust the subassembly through the connecting plate drive and follows direction of delivery reciprocating motion.

In a possible implementation mode, the utility model provides a part surface defect detection device,

the dust removal mechanism also comprises a dust removal driving assembly, and the dust removal assembly comprises a second support frame, a dust sticking roller and a dust removing roller;

the dust-binding roller is rotatably arranged on the connecting plate and is used for removing dust and foreign matters on the surface of the part;

the second support frame is connected with the connecting plate through a dust removal driving assembly, the dust removal roller is rotatably arranged on the second support frame, and the dust removal driving assembly drives the dust removal roller to move along the vertical direction through the second support frame so that the dust removal roller is in contact with the dust sticking roller.

In a possible implementation manner, the utility model provides a part surface defect detection device, dust removal drive assembly are the lift cylinder.

In a possible implementation manner, the utility model provides a part surface defect detection device still includes filtering mechanism, and filtering mechanism is used for cleaing away the dust that detects the intracavity.

In a possible implementation manner, the filtering mechanism of the device for detecting surface defects of parts provided by the utility model comprises an ion wind rod and a filtering component, wherein the filtering component is positioned at the top of the detection chamber and is communicated with the detection cavity;

the detection chamber has opposite inlet and outlet sides with an ion wind bar located at the inlet side.

The utility model provides a part surface defect detection device, through setting up drive assembly, automatic optical detection spare, display and dust removal mechanism, the part passes through drive assembly and carries to the coverage of automatic optical detection spare and dust removal mechanism in, detects the defect on part surface through automatic optical detection spare, shows the defect on part surface through the display, removes dust and removes the foreign matter through the surface of dust removal mechanism to the part. Like this, can detect and show the defect on part surface to and the operation of removing dust is gone on simultaneously, labour saving and time saving has improved detection efficiency. Therefore, the problems that in the prior art, the time and the labor are wasted in the detection of the defects of the diaphragm, and the detection efficiency is low are solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a device for detecting surface defects of parts according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a device for detecting surface defects of parts according to an embodiment of the present invention;

FIG. 3 is a diagram illustrating a usage status of the device for detecting surface defects of parts according to an embodiment of the present invention;

fig. 4 is a schematic structural view of an automatic optical inspection device and a driving mechanism in the device for detecting surface defects of parts according to the embodiment of the present invention;

fig. 5 is a schematic structural view of an automatic optical inspection device and a part of a driving mechanism in the device for detecting surface defects of parts according to the embodiment of the present invention;

fig. 6 is a schematic structural view of a dust removing mechanism in the device for detecting surface defects of parts according to the embodiment of the present invention;

fig. 7 is a schematic view of a part of the structure of a dust removing mechanism in the device for detecting surface defects of parts according to the embodiment of the present invention;

fig. 8 is a schematic diagram of an internal structure of a device for detecting surface defects of parts according to an embodiment of the present invention.

Description of reference numerals:

10-a membrane;

100-a detection chamber; 110-a transmission assembly; 120-a detection chamber; 121-inlet side; 122-an outlet side; 130-a support; 140-a detection section; 150-a first support frame; 151-support frame;

200-a dust removal mechanism; 210-a connecting plate; 220-a dust removal assembly; 221-a second support; 222-a dusting roll; 223-a dust removing stick; 230-a third drive assembly; 240-a dust removal drive assembly;

300-a display;

400-automatic optical inspection piece;

500-a drive mechanism; 510-a support plate; 520-a first drive assembly; 530-a second drive assembly; 540-a vertical drive assembly;

600-a scanning element;

700-a filter mechanism; 710-an ionic wind wand; 720-a filter assembly;

800-folding a plate;

900 — illumination.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present application, it should be noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, an indirect connection through intervening media, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application.

In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or described herein.

Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The liquid crystal display panel comprises a backlight module which is used for supplying sufficient light sources with uniform brightness and distribution, so that the liquid crystal display panel can normally display images. The backlight module comprises a membrane and a back plate, wherein the membrane can comprise a reflecting sheet, a diffusion sheet, a prism sheet and the like. The backlight module can also comprise a luminous source, a lampshade, a light guide plate, a rubber frame and other parts.

The light source can be an LED lamp, the lampshade is used for fixing the light source, the light guide plate is used for converting a line or point light source into a surface light source, the reflecting sheet is used for reflecting light emitted from the light guide plate back to the light guide plate, the light utilization rate is increased, the diffusion sheet comprises lower diffusion and upper diffusion, the diffusion sheet is mainly used for homogenizing the light emitted from the light guide plate, and the prism sheet is used for light collection, namely, light is concentrated in a specific visual angle, so that the intensity of the light in the specific visual angle is increased. The rubber frame is used for fixing the components.

The backlight module can be divided into a side-in type backlight module and a direct type backlight module according to the position of the light-emitting source. The side-in type backlight module refers to a light source which is positioned on the side surface of the display panel, and light is emitted from the light source and uniformly distributed on the whole picture through the light guide plate. The side-in type backlight module has the advantages of small volume, lightness, thinness and portability. The direct type backlight module refers to the fact that the light-emitting sources are distributed at the bottom of the back plate, and the uniformly distributed light-emitting sources emit light to a picture. The direct type backlight module has the advantage of low cost.

The membrane is easy to have the defects of foreign matters, scratches and the like. In the related technology, the detection is carried out manually, the flashlight and the light are used for lighting, the defects of foreign matters, scratches and the like of the diaphragm are identified by human eyes, and dust on the diaphragm is cleaned manually by using dust-free cloth. However, the above-mentioned method is not only time-consuming and labor-consuming, but also inefficient.

Based on the above, the embodiment of the application provides a part surface defect detection device,

fig. 2 is a schematic view of an internal structure of a device for detecting surface defects of parts according to an embodiment of the present invention; fig. 3 is a usage state diagram of the device for detecting surface defects of parts according to the embodiment of the present invention. Referring to fig. 1 to 3, the apparatus for detecting surface defects of a part according to an embodiment of the present application includes an inspection chamber 100, a dust removing mechanism 200, a display 300, and at least one automatic optical inspection device 400, where the inspection chamber 100 includes a transmission assembly 110 and an inspection chamber 120, and the transmission assembly 110, the automatic optical inspection device 400, and the dust removing mechanism 200 are all located in the inspection chamber 120.

The drive assembly 110 is used to transport parts into the inspection chamber 120.

The automatic optical inspection unit 400 can move back and forth in the inspection chamber 120 along the conveying direction of the transmission assembly 110 to collect an image of the surface of the part to acquire the defect on the surface of the part.

The display 300 is electrically connected to the automatic optical inspection device 400, and the display 300 is used to display the surface defects of the part.

The dust removing mechanism 200 may reciprocate in the conveying direction within the inspection chamber 120 to remove dust and foreign substances from the surface of the part.

It should be noted that the device for detecting surface defects of parts provided in the embodiments of the present application is used to detect large-sized parts (parts with a length and a width both exceeding 500 mm) with a flat surface, where the part may be the film 10 in the backlight module, or one of the reflective sheet, the diffusion sheet and the prism sheet, or may be glass. For convenience of description, the present embodiment is illustrated with a diaphragm 10.

In this embodiment, the detection chamber 120 of the detection chamber 100 is used to provide a detection environment, the detection chamber 100 may have a rectangular parallelepiped shape, and the detection chamber 100 may be divided into two parts, namely a support part 130 and a detection part 140, wherein the support part 130 may be a support seat, the detection part 140 is located above the support part 130, and the support part 130 supports the detection part 140. The detection chamber 120 is formed in the detection part 140, and the periphery of the detection part 140 may be transparent, thereby facilitating observation of the inside of the detection chamber 120.

The transmission assembly 110 is located between the supporting portion 130 and the detecting portion 140, and the transmission assembly 110 is connected to the supporting portion 130, and supports the transmission assembly 110 via the supporting portion 130, so as to raise the transmission assembly 110 to a more comfortable operating height, which is convenient for an operator to convey the film 10 into the detecting chamber 120 via the transmission assembly 110.

In a specific implementation, the driving component 110 may be a belt driving component or a roller driving component, which is well known to those skilled in the art, and the embodiment is not limited herein.

In the present embodiment, the automatic Optical Inspection device 400 is used to inspect defects on the surface of the film 10, wherein the automatic Optical Inspection device 400 may be an AOI (Automated Optical Inspection) camera, and the AOI camera is reciprocally moved along the conveying direction (X direction in fig. 3) of the driving assembly 110 to inspect defects such as foreign matters or scratches on the entire surface of the film 10, and the position of the defects such as the foreign matters or scratches is displayed in the form of a screen by the display 300 for the operator to trim.

The display 300 may be located outside the detection chamber 100, and the display 300 may be located outside the detection chamber 100, for example, so that an operator can view a picture on the display 300 conveniently.

In order to remove dust and foreign matters from the surface of the membrane 10, a dust removing mechanism 200 is further provided in the present embodiment, and the dust removing mechanism 200 reciprocates in the conveying direction in the detection chamber 120 to remove dust and foreign matters from the surface of the part.

The part surface defect detection device that this application embodiment provided, through setting up drive assembly 110, automatic optical detection piece 400, display 300 and dust removal mechanism 200, the part is carried to the coverage of automatic optical detection piece 400 and dust removal mechanism 200 in through drive assembly 110, detects the defect on part surface through automatic optical detection piece 400, shows the defect on part surface through display 300, removes dust and removes the foreign matter through dust removal mechanism 200 to the surface of part. Like this, can detect and show the defect on part surface to and the operation of removing dust is gone on simultaneously, labour saving and time saving has improved detection efficiency. Therefore, the problems that in the prior art, the defect detection of the diaphragm 10 wastes time and labor and the detection efficiency is low are solved. In addition, the defects on the surface of the part are detected through the automatic optical detection piece 400, so that compared with manual detection, errors are not easy to occur, and the accuracy of the detection result is high.

As shown in fig. 3, in the present application, the number of the automatic optical detection members 400 is at least two, the respective automatic optical detection members 400 are sequentially arranged side by side along the width direction (Y direction in fig. 3) of the detection chamber 120, and the length direction of the detection chamber 120 coincides with the conveying direction; the interval between two adjacent automatic optical inspection pieces 400 is adjustable.

When the width (the length in the Y direction in fig. 3) of the film 10 is large, at least two automatic optical detection pieces 400 are arranged to increase the range of the detection area of the part surface defect detection device, so as to adapt to the surface defect detection of the film 10 with different widths. By adjusting the distance between two adjacent automatic optical inspection pieces 400, the entire area of the film 10 can be covered even when the film 10 is misaligned, and the film 10 can be inspected.

Fig. 4 is a schematic structural diagram of an automatic optical inspection piece and a driving mechanism in the device for detecting surface defects of parts according to the embodiment of the present invention. Referring to fig. 2 to 4, in some embodiments, the apparatus for detecting surface defects of parts further includes a driving mechanism 500, the driving mechanism 500 drives the automatic optical inspection piece 400 to move back and forth in the conveying direction of the transmission assembly 110 in the inspection chamber 120, and the driving mechanism 500 can also simultaneously drive the automatic optical inspection piece 400 to move relative to another automatic optical inspection piece 400 so as to adjust the distance between two adjacent automatic optical inspection pieces 400.

Specifically, the driving mechanism 500 may be a three-axis motion platform or other mechanism capable of moving in three axes. Wherein, the three axes are an X axis, a Y axis and a Z axis in the space rectangular coordinate system.

In the present application, the drive mechanism 500 may include a support plate 510, two first drive assemblies 520, and at least one second drive assembly 530.

The testing chamber 100 further comprises a first support frame 150, the first support frame 150 being located in the testing chamber 120; two first driving assemblies 520 are coupled to the first support frame 150, the support plate 510 is coupled between the two first driving assemblies 520, and the first driving assemblies 520 are used to drive the support plate 510 to reciprocate along the conveying direction.

The second driving assembly 530 is disposed on the supporting plate 510, and the automatic optical inspection piece 400 is disposed on the second driving assembly 530, and the second driving assembly 530 is used to adjust the interval between two adjacent automatic optical inspection pieces 400.

Specifically, the first support frame 150 may include two support frames 151, the two support frames 151 are respectively located at two sides of the transmission assembly 110, the two support frames 151 are symmetrically arranged with respect to the conveying direction of the transmission assembly 110, the top of one support frame 151 is correspondingly connected to one first driving assembly 520, and the two first driving assemblies 520 drive the support plate 510 to reciprocate along the conveying direction of the transmission assembly 110.

A second driving assembly 530 is provided on the supporting plate 510, and the automatic optical inspection part 400 is provided on the second driving assembly 530, so that the automatic optical inspection part 400 can be reciprocally moved in the transferring direction of the transferring assembly 110.

One automatic optical inspection device 400 may correspond to one second driving assembly 530, and the second driving assembly 530 drives the automatic optical inspection device 400 connected thereto to move, or two automatic optical inspection devices may be connected to the same second driving assembly 530 and driven by the second driving assembly 530 to approach or separate from each other. In this way, the position of the automatic optical inspection piece 400 with respect to the support plate 510 can be adjusted by the second driving assembly 530 for the purpose of adjusting the interval between two adjacent automatic optical inspection pieces 400.

In a specific implementation, the first driving assembly 520 is one of a linear module, a linear guide rail and a ball screw linear transmission assembly; the second driving assembly 530 is one of a linear module, a linear guide, and a ball screw linear transmission assembly. The linear module, the linear guide rail and the ball screw linear transmission assembly are high in movement speed, high in repeated positioning precision, light in body weight, small in equipment space and long in service life.

In a specific implementation, the moving directions of the supporting plate 510 and the second driving assembly 530 are parallel to the Y direction in fig. 3.

The movement of the automatic optical inspection device 400 in the X and Y directions of fig. 3 may be achieved by the support plate 510, the first driving assembly 520, and the second driving assembly 530 as described above. If the photographing range of the automatic optical inspection piece 400 needs to be adjusted, it is achieved by adjusting the height of the automatic optical inspection piece 400, that is, adjusting the movement of the automatic optical inspection piece 400 in the vertical direction.

Next, a Z-direction adjustment, that is, a vertical movement implementation of the automatic optical inspection device 400 will be described.

In the device for detecting surface defects of parts provided by the embodiment of the present application, the driving mechanism 500 further includes at least two vertical driving assemblies 540, the automatic optical inspection piece 400 is connected to the second driving assembly 530 through the vertical driving assemblies 540, and the vertical driving assemblies 540 are used for driving the automatic optical inspection piece 400 to move along the vertical direction. The automatic optical inspection member 400 is close to the membrane 10 and has a small photographing range, and the automatic optical inspection member 400 is far from the membrane 10 and has a large photographing range, and the automatic optical inspection member 400 moves in a vertical direction to adjust the distance between the automatic optical inspection member 400 and the membrane 10 to obtain a suitable photographing range.

In a specific implementation, the vertical driving assembly 540 may be a lifting cylinder, a lifting hydraulic cylinder, a linear motor, a ball screw linear transmission assembly, or the like.

Fig. 5 is a schematic structural diagram of an automatic optical inspection device and a part of a driving mechanism in the device for detecting surface defects of parts according to an embodiment of the present invention. Referring to fig. 2, 3 and 5, in addition, the apparatus for detecting surface defects of a part according to the embodiment of the present application further includes a controller (not shown in the drawings) and a scanning element 600, the scanning element 600 and the transmission assembly 110 are electrically connected to the controller, and the scanning element 600 is located in the detection chamber 120.

The scanning member 600 is used for detecting a preset mark on the part, and the controller controls the transmission assembly 110 to stop when the scanning member 600 detects the preset mark.

Specifically, the scanning element 600 may be fixed in the detection chamber 120, and the scanning element 600 may be fixed on the first supporting frame 150. The scanning member 600 may also be fixed on the supporting plate 510, and at this time, the scanning member moves along with the automatic optical inspection member 400, so that the position of the scanning member 600 is not fixed, and at this time, an initial position is set, wherein the initial position may be a position where the scanning member 600 is located in the middle of the inspection chamber 120, when the scanning member 600 detects a preset mark, and after the transmission assembly 110 stops, the automatic optical inspection member 400 may be moved at one end of the film 10 to start defect inspection.

After the membrane 10 enters the detection cavity 120, the scanning element 600 identifies a preset mark on the membrane 10, and when the preset mark is identified, which indicates that the membrane 10 has completely entered the detection cavity 120 at this time, the transmission assembly 110 is controlled to stop, so that the membrane 10 remains in a static state. The surface of the diaphragm 10 is detected by the automatic optical detector 400 in a state that the diaphragm 10 is still, and the detection effect is good.

In a specific implementation, the scanning element 600 is a line scan camera, and the number of the line scan cameras is at least two, thereby increasing the scanning range of the line scan camera.

The dust removing mechanism 200 will be explained below.

Fig. 6 is a schematic structural view of a dust removing mechanism in the device for detecting surface defects of parts according to the embodiment of the present invention; fig. 7 is a schematic view of a part of the structure of the dust removing mechanism in the device for detecting surface defects of parts provided by the embodiment of the present invention. Referring to fig. 3, 6 and 7, in the present embodiment, the dust removing mechanism 200 includes a connection plate 210, a dust removing assembly 220, and two third driving assemblies 230, the dust removing assembly 220 is disposed on the connection plate 210, the connection plate 210 is connected to both of the two third driving assemblies 230, and the third driving assemblies 230 are configured to drive the dust removing assembly 220 to reciprocate in the conveying direction through the connection plate 210. Therefore, the whole membrane 10 is subjected to dust removal operation through the dust removal assembly 220, the yield of the membrane 10 is improved, and the rework condition caused by using defective products in subsequent operation is avoided.

The third driving assembly 230 may be one of a linear module, a linear guide, and a ball screw linear transmission assembly.

In a specific implementation, the dust removing mechanism 200 further includes a dust removing driving assembly 240, and the dust removing assembly 220 includes a second supporting frame 221, a dust adhering roller 222 and a dust removing roller 223.

The dust-binding roller 222 is rotatably arranged on the connecting plate 210, and the dust-binding roller 222 is used for removing dust on the surface of the part.

The second supporting frame 221 is connected with the connecting plate 210 through the dust removing driving assembly 240, the dust removing stick 223 is rotatably arranged on the second supporting frame 221, and the dust removing driving assembly 240 drives the dust removing stick 223 to move along the vertical direction through the second supporting frame 221, so that the dust removing stick 223 is in contact with the dust sticking roller 222.

Wherein, the dust-sticking roller 222 rotates to stick the dust and the foreign matters on the membrane 10, the dust-sticking roller 222 is covered with dust-sticking paper, and the dust on the surface of the membrane 10 sticks to the dust-sticking paper. The dust removing roller 223 is in contact with the dust-binding roller 222, the dust removing roller 223 is used for cleaning the dust-binding roller 222, and the dust removing roller 223 transfers dust and foreign matters on the dust-binding roller 222 to the dust removing roller 223 so as to prevent the membrane 10 from being secondarily polluted by the dust-binding roller 222.

Wherein, the dust removal driving assembly 240 is a lifting cylinder.

Fig. 8 is a schematic diagram of an internal structure of a device for detecting surface defects of parts according to an embodiment of the present invention. Referring to fig. 1, 2 and 8, during the use of the automatic optical inspection piece 400, dust may affect the inspection effect of the automatic optical inspection piece 400. Therefore, in some embodiments, a filter mechanism 700 is further included, and the filter mechanism 700 is used to remove dust from the detection chamber 120.

Wherein, the filter mechanism 700 comprises an ion wind rod 710 and a filter assembly 720, the filter assembly 720 is located at the top of the detection chamber 100 and is communicated with the detection chamber 120;

the detection chamber 120 has opposite entrance and

exit sides

121, 122, with an ion wind bar 710 located at the entrance side 121. The wind force is provided by the ion wind rod 710, the air flow in the detection chamber 120 is increased, and the dust in the air in the detection chamber 120 is filtered by the filter assembly 720.

The outer side of the sensing chamber 100 may have a folding plate 800, the folding plate 800 may be rotated to a horizontal state with respect to the sensing chamber 100 to place a mouse and a keyboard, the mouse and the keyboard may be electrically connected with the display 300, and the automatic optical sensing device 400, the driving mechanism 500, the dust removing mechanism 200, the filtering mechanism, the display 300, the mouse and the keyboard may have a manual or automatic control unit electrically connected with the controller to implement manual or automatic control of the automatic optical sensing device 400, the driving mechanism 500, the dust removing mechanism 200 and the filtering mechanism.

In addition, the device for detecting surface defects of a part provided by the embodiment of the application further comprises an illuminating piece 900, and the illuminating piece 900 is located on the detection chamber 100. The illuminating member 900 provides illumination to clearly reflect defects of the film 10. Wherein the illuminating member 900 may be a three-color lamp.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The part surface defect detection device is characterized by comprising a detection chamber, a dust removal mechanism, a display and at least one automatic optical detection piece, wherein the detection chamber comprises a transmission assembly and a detection cavity;

the transmission assembly is used for conveying parts into the detection cavity;

the automatic optical detection piece can reciprocate in the detection cavity along the conveying direction of the transmission assembly, and an image of the surface of the part is acquired so as to acquire the defect of the surface of the part;

the display is electrically connected with the automatic optical detection piece and is used for displaying the defects on the surface of the part;

2. The part surface defect detecting device according to claim 1, wherein the number of the automatic optical detecting members is at least two, each of the automatic optical detecting members is arranged side by side in the width direction of the detecting chamber in sequence, and the length direction of the detecting chamber is consistent with the conveying direction;

3. The apparatus for detecting surface defects of a part according to claim 2, further comprising a driving mechanism including a support plate, two first driving assemblies and at least one second driving assembly;

the detection chamber further comprises a first support frame, and the first support frame is positioned in the detection cavity; the two first driving assemblies are connected to the first support frame, the support plate is connected between the two first driving assemblies, and the first driving assemblies are used for driving the support plate to reciprocate along the conveying direction;

4. The apparatus for detecting surface defects of parts according to claim 3, wherein the first driving assembly is one of a linear module, a linear guide rail and a ball screw linear transmission assembly;

5. The apparatus according to claim 3, wherein the driving mechanism further comprises at least two vertical driving assemblies, the automatic optical inspection device is connected with the second driving assembly through the vertical driving assemblies, and the vertical driving assemblies are used for driving the automatic optical inspection device to move in a vertical direction.

6. The part surface defect detection apparatus of claim 3, further comprising a controller and a scanning member, wherein the scanning member and the transmission assembly are electrically connected to the controller, and the scanning member is located in the detection chamber;

the scanning piece is used for detecting the preset mark on the part, and the controller controls the transmission assembly to stop when the scanning piece detects the preset mark.

7. The apparatus according to claim 6, wherein the scanning member is a line scanning camera, and the number of the line scanning cameras is at least two.

8. The part surface defect detecting device according to any one of claims 3 to 7, wherein the dust removing mechanism includes a connecting plate, a dust removing assembly, and two third driving assemblies, the dust removing assembly is disposed on the connecting plate, the connecting plate is connected to both of the two third driving assemblies, and the third driving assemblies are configured to drive the dust removing assembly to reciprocate along the conveying direction through the connecting plate.

9. The part surface defect detection device of claim 8, wherein the dust removal mechanism further comprises a dust removal driving assembly, and the dust removal assembly comprises a second support frame, a dust sticking roller and a dust removing roller;

the second support frame is connected with the connecting plate through the dust removal driving assembly, the dust removal roller is rotatably arranged on the second support frame, and the dust removal driving assembly drives the dust removal roller to move along the vertical direction through the second support frame, so that the dust removal roller is in contact with the dust adhering roller.

10. The apparatus according to claim 9, wherein the dust-removing driving assembly is a lifting cylinder.

11. The apparatus for detecting surface defects of parts according to any one of claims 1 to 7, further comprising a filtering mechanism for removing dust in the detection chamber.

12. The part surface defect detecting device of claim 11, wherein the filtering mechanism comprises an ion wind rod and a filtering component, and the filtering component is positioned at the top of the detecting chamber and is communicated with the detecting cavity;

the detection chamber has opposite inlet and outlet sides, the ion wind bar being located at the inlet side.