Product defect detection equipment

Abstract

The utility model relates to the technical field of detection equipment, and discloses product defect detection equipment, which comprises a cabinet; the feeding mechanism is provided with a feeding station located in the cabinet; a waiting station and a detection station are arranged on the two sides of the rotary table respectively, and the rotary table is used for driving products to move between the waiting station and the detection station through rotation; the detection device is used for carrying out defect detection on the product at the detection station; the discharging mechanism is provided with a discharging station located in the machine cabinet, and the feeding station, the waiting station and the discharging station are arranged at equal intervals in the carrying direction; and the carrying mechanism is provided with a plurality of butt joint assemblies and used for taking the products on the feeding station and the waiting station through the butt joint assemblies correspondingly, and after the carrying mechanism moves by a preset distance in the carrying direction, the products originally taken from the feeding station are placed on the waiting station, and the products originally taken from the waiting station are placed on the discharging station. In this way, the efficiency of defect detection on batch products can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection equipment, in particular to a product defect detection equipment. BACKGROUND

[0002] With the development of science and technology, the efficiency requirement for product detection is also higher and higher. At present, the common defect detection equipment for batch products directly detects by camera through machine vision method on the conveying line. Since the conveying line needs to be stopped during the camera imaging process to ensure that the product is in a stationary state, the detection efficiency is relatively low. CONTENT OF THE UTILITY MODEL

[0003] In view of the above problems, the embodiments of the present application provide a product defect detection equipment which can improve the efficiency of defect detection for batch products.

[0004] The embodiments of the present application provide a product defect detection equipment, which comprises: a cabinet; a feeding mechanism, the output end of which extends into the interior of the cabinet, and the feeding mechanism has a feeding station in the interior of the cabinet, and the feeding mechanism is used for conveying products to be detected to the feeding station; a rotating disc, which is rotatably arranged in the cabinet, and the two sides of the rotating disc are respectively a waiting station and a detection station, and the rotating disc is used for carrying products and driving the products to move between the waiting station and the detection station through rotation; a detection device, which is arranged in the cabinet and located at the detection station, and is used for detecting defects of the products in the detection station; and a discharging mechanism, the input end of which extends into the interior of the cabinet, and the discharging mechanism has a discharging station in the interior of the cabinet, and the discharging mechanism is used for outputting the products in the discharging station, wherein the feeding station, the waiting station and the discharging station are arranged at equal intervals along a conveying direction; and a conveying mechanism, which is movably arranged in the interior of the cabinet along the conveying direction, and has a plurality of docking assemblies arranged along the conveying direction, and the conveying mechanism is used for taking the products in the feeding station and the waiting station through the plurality of docking assemblies respectively, and after moving a predetermined distance along the conveying direction, placing the originally taken products from the feeding station in the waiting station and placing the originally taken products from the waiting station in the discharging station through the plurality of docking assemblies.

[0005] In an optional manner, the front end of the feeding station is provided with a position adjusting assembly, and the position adjusting assembly comprises a fixed seat, a first guide piece, a second guide piece and an adjusting piece; the fixed seat is fixed to the feeding mechanism, the first guide piece and the second guide piece are arranged on the feeding conveying line of the feeding mechanism at intervals along a direction perpendicular to the feeding direction of the feeding mechanism, and the area between the first guide piece and the second guide piece is used for passing the products to adjust the products to the feeding station; the first guide piece and the second guide piece are movably connected to the fixed seat through the adjusting piece, and the adjusting piece is used for driving the first guide piece and the second guide piece to move towards or away from each other.

[0006] In one optional embodiment, the fixed base includes a first fixed plate and a second fixed plate fixed to opposite sides of the feeding mechanism along the feeding direction, and a sliding guide rod connected between the first fixed plate and the second fixed plate. The first guide and the second guide are respectively provided with a first sliding connecting plate and a second sliding connecting plate, and both the first sliding connecting plate and the second sliding connecting plate can be movably sleeved on the sliding guide rod. The adjusting component includes a positive and negative threaded screw rotatably connected between the first fixed plate and the second fixed plate. The first sliding connecting plate and the second sliding connecting plate are respectively engaged with the threads in opposite directions on the positive and negative threaded screw, so that when the positive and negative threaded screw rotates, the first guide and the second guide move synchronously towards each other or away from each other at the same speed.

[0007] In one alternative embodiment, a blocking component is provided at the rear end of the feeding station. The blocking component is movably connected to the feeding mechanism along the feeding direction of the feeding mechanism and is used to block the product input by the feeding mechanism at the feeding station.

[0008] In one alternative embodiment, the conveying mechanism further includes a body, and each docking assembly includes multiple air nozzles that are liftably mounted on the body, wherein the multiple air nozzles included in a docking assembly are used to simultaneously adsorb a product.

[0009] In one alternative embodiment, the turntable includes a first turntable, a second turntable, and a third turntable. The first turntable has a first waiting station and a first inspection station on its two sides, respectively; the second turntable has a second waiting station and a second inspection station on its two sides, respectively; and the third turntable has a third waiting station and a third inspection station on its two sides, respectively. The first, second, and third waiting stations are arranged along the transport direction, and the distances between the loading station and the first waiting station, the first and second waiting stations, the second and third waiting stations, and the third waiting station and the unloading station are all equal. Multiple docking components are used to first pick up the materials from the loading station, the first waiting station, and the third waiting station, respectively. Products from the first, second, and third waiting stations are then moved a predetermined distance along the transport direction by the transport mechanism. Products originally taken from the loading station are placed at the first waiting station, at the second waiting station, at the third waiting station, and at the unloading station. The inspection device includes a first inspection device located at the first inspection station, a second inspection device located at the second inspection station, and a third inspection device located at the third inspection station. The first, second, and third inspection devices are used to perform different types of defect detection on the products.

[0010] In one alternative configuration, the center lines connecting the first, second, and third turntables form a triangle.

[0011] In an alternative mode, the product defect detection device is used for defect detection of a display screen; a clamp is arranged on the first turntable, the clamp is provided with a light-transmitting glass, the clamp is used for placing the display screen and supporting the bottom of the display screen through the light-transmitting glass, a light transmission opening is arranged at the position opposite to the clamp of the first turntable, first and second suction seats are respectively arranged on the second and third turntables, and the first and second suction seats are used for suctioning the display screen through negative pressure; the first detection device comprises a first column, a first camera and a first light source group, the first column is fixed at the first detection station, the first camera is connected to the first column in a liftable manner and is arranged towards the first detection station, the first light source group comprises a high-position annular light source and a backlight source, the high-position annular light source is connected to the first column in a liftable manner and is located below the first camera, the backlight source is arranged at the bottom of the light transmission opening, and the first camera is used for imaging by taking pictures when the high-position annular light source and the backlight source respectively independently light the display screen on the clamp; the second detection device comprises a second column, a second camera and a second light source group, the second column is fixed at the second detection station, the second camera is connected to the second column in a liftable manner and is arranged towards the second detection station, the second light source group comprises a coaxial light source and a first side light source, the coaxial light source is connected to the second column in a liftable manner and is located below the second camera, and the first side light source is arranged towards the second detection station, the first side light source is used for lighting the first side edge of the display screen on the first suction seat, and the second camera is used for imaging by taking pictures when the coaxial light source and the first side light source respectively independently light the display screen on the first suction seat; the third detection device comprises a third column, a third camera and a third light source group, the third column is fixed at the third detection station, the third camera is connected to the third column in a liftable manner and is arranged towards the third detection station, the third light source group comprises a low-position annular light source and a second side light source, the low-position annular light source is connected to the third column in a liftable manner and is located below the third camera, and the second side light source is arranged towards the third detection station, the second side light source is used for lighting the second side edge of the display screen on the second suction seat, wherein the first and second side edges of the display screen are opposite side edges, and the third camera is used for imaging by taking pictures when the low-position annular light source and the second side light source respectively independently light the display screen on the second suction seat.

[0012] In an alternative mode, the clamp comprises a clamp mounting seat and a clamp body, the clamp mounting seat is fixed on the first turntable, the light-transmitting glass is arranged on the clamp mounting seat, and the clamp body is crimped on the light-transmitting glass and detachably connected with the clamp mounting seat.

[0013] In an alternative mode, the blanking mechanism is provided with a partition at the output end, which separates the output end of the blanking mechanism into an OK end and an NG end; the blanking mechanism is provided with a first position and a second position upstream of the output end, the first position and the second position are arranged along a pushing direction, wherein the pushing direction is arranged at an angle with the discharging direction of the blanking mechanism; the blanking station, the first position and the OK end are collinear along the discharging direction, so that the qualified products on the blanking station are conveyed to the OK end along the discharging direction through the blanking conveying line of the blanking mechanism; the second position and the NG end are collinear along the discharging direction, and the product defect detection device further comprises a pushing mechanism arranged on the blanking mechanism, which is used to push the unqualified products reaching the first position to the second position along the pushing direction, so that the unqualified products are conveyed to the NG end along the discharging direction through the blanking conveying line.

[0014] The product defect detection device provided by the embodiment of the application adopts the form of cooperation of the carrying mechanism and the turntable to transfer the products between the feeding mechanism and the blanking mechanism, wherein the feeding station, the waiting station on the turntable and the blanking station are arranged at equal intervals along the carrying direction, so that the carrying mechanism can move the products on the plurality of docking assemblies backward by one station synchronously through one movement, and the detection device can take and place the products at the waiting station during the detection of the products at the detection station by the rotation of the turntable, so that the carrying and detection of the batch products are synchronously performed based on the independent operation of the turntable and the carrying mechanism and the mutual non-interference, and the efficiency of product detection is effectively improved.

[0015] The above description is only a summary of the technical scheme of the application, in order to more clearly understand the technical means of the application, the specific embodiments of the application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the application more obvious and easy to understand, the following specific embodiments of the application are described. BRIEF DESCRIPTION OF DRAWINGS

[0016] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Furthermore, the same reference numerals are used throughout the several drawings to represent similar components. In the drawings:

[0017] Figure 1 A perspective view of the product defect detection device provided by the embodiment of the application;

[0018] Figure 2 A perspective view of the product defect detection device provided by the embodiment of the application without the cabinet;

[0019] Figure 3The utility model provides a stereogram of the feeding mechanism provided by the embodiment of the utility model;

[0020] Figure 4 The utility model provides a stereogram of the carrying mechanism provided by the embodiment of the utility model;

[0021] Figure 5 The utility model provides a stereogram of the carousel and detection device one visual angle provided by the embodiment of the utility model;

[0022] Figure 6 The utility model provides a stereogram of the carousel and detection device another visual angle provided by the embodiment of the utility model;

[0023] Figure 7 The utility model provides a section view of the clamp provided by the embodiment of the utility model;

[0024] Figure 8 The utility model provides a stereogram of the discharging mechanism provided by the embodiment of the utility model.

[0025] The specific embodiment in the drawings is as follows:

[0026] 10, product defect detection equipment;

[0027] 100, cabinet;

[0028] 200, feeding mechanism; 210, feeding station; 220, position adjusting assembly; 221, fixed seat; 2211, first fixed plate; 2212, second fixed plate; 2213, sliding guide rod; 222, first guide; 2221, first sliding connecting plate; 223, second guide; 2231, second sliding connecting plate; 224, adjusting part; 2241, positive and negative tooth screw; 2242, screwing portion; 230, feeding conveying line; 240, clamping assembly; 250, blocking assembly; 251, sliding shaft; 252, locking part; 253, feeding sensor;

[0029] 300, carrying mechanism; 301, main body; 310, butt joint assembly; 311, air nozzle;

[0030] 400, carousel; 401, first carousel; 402, second carousel; 403, third carousel; 410, waiting station; 411, first waiting station; 412, second waiting station; 413, third waiting station; 420, detection station; 421, first detection station; 422, second detection station; 423, third detection station; 430, clamp; 431, light transmission glass; 432, clamp mounting seat; 4321, base; 4322, pressing plate; 433, clamp body; 440, first adsorption seat; 450, second adsorption seat;

[0031] 500, detection device; 510, first detection device; 511, first stand; 512, first camera; 513, first light source group; 5131, high annular light source; 5132, backlight source; 520, second detection device; 521, second stand; 522, second camera; 523, second light source group; 5231, coaxial light source; 5232, first side light source; 530, third detection device; 531, third stand; 532, third camera; 533, third light source group; 5331, low annular light source; 5332, second side light source; 540, hand screw;

[0032] 600, blanking mechanism; 601, first position; 602, second position; 610, blanking station; 620, partition; 631, OK end; 632, NG end; 640, blanking conveying line; 650, pushing mechanism; 660, pushing sensor;

[0033] 20, product; 21, display screen. DETAILED DESCRIPTION

[0034] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the terms "include" and "have" and any variations thereof used in the specification and claims of the present application and the above description of drawings are intended to cover the non-exclusive inclusion.

[0036] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0037] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of existence of A, existence of A and B, and existence of B. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0039] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0040] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0041] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanical connection, or it can be electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0042] In order to improve the detection efficiency, the product carrying and product detection are independently operated in the detection equipment, the turntable is selected as the transfer mechanism, the two sides of the turntable are provided with the waiting station and the detection station respectively, the rotation of the turntable is used to make the products in the waiting station and the detection station move synchronously. At the same time, the feeding station, the waiting station and the discharging station in the equipment cabinet are arranged at equal intervals, so that the carrying mechanism can take multiple products at the same time through the multiple docking assemblies arranged thereon, and the products in the feeding station and the waiting station are carried back by one station in one movement stroke, thereby improving the product carrying efficiency. In addition, since the carrying mechanism and the turntable are independently operated, when the turntable is stationary and the product on the detection station is detected, the carrying mechanism can normally move and take and place the product in the waiting station. For batch product detection, the detection operation of the current product and the carrying operation of other products do not affect each other, and the whole equipment can operate efficiently and complete the defect detection of the batch products.

[0043] Firstly, refer to Figure 1 , the product defect detection equipment provided by the embodiment of the application is shown in the perspective view, which comprises a cabinet 100, a feeding mechanism 200, a turntable 400, a detection device 500, a discharging mechanism 600 and a carrying mechanism 300.

[0044] As shown in the structure of the cabinet omitted in Figure 1 and Figure 2 , the output end of the feeding mechanism 200 extends into the interior of the cabinet 100, and has a feeding station 210 located in the interior of the cabinet 100. The feeding mechanism 200 is used to deliver the product 20 to be detected to the feeding station 210.

[0045] The turntable 400 is rotatably arranged in the cabinet 100, and the two sides of the turntable 400 are respectively provided with a waiting station 410 and a detection station 420. It should be noted that the waiting station 410 and the detection station 420 refer to the areas on the two sides of the turntable 400, and the positions thereof do not change with the rotation of the turntable 400, that is, the positions of the waiting station 410 and the detection station 420 in the cabinet 100 are fixed. The turntable 400 is used to carry the product 20 and drive the product to move between the waiting station 410 and the detection station 420 through rotation. The detection device 500 is arranged in the cabinet 100 and located at the detection station 420, and is used to detect the defects of the product at the detection station 420. The input end of the discharging mechanism 600 extends into the interior of the cabinet 100, and has a discharging station 610 located in the interior of the cabinet 100. The discharging mechanism 600 is used to output the product at the discharging station 610.

[0046] As shown in Figure 2As shown in the figure, the loading station 210, the waiting station 410 and the unloading station 610 are arranged at equal intervals along the conveying direction (indicated by arrow X in the figure), that is, the loading station 210, the waiting station 410 and the unloading station 610 are all located on the dotted line in the figure.

[0047] 300-inch conveying mechanism Figure 2 The component, movably mounted inside the cabinet 100 in the direction indicated by the middle arrow X, has multiple docking components 310 arranged in the direction indicated by the arrow X. This is based on the fact that the loading station 210, waiting station 410, and unloading station 610 are all located within... Figure 2 On the midpoint line, the conveying mechanism 300 is used to pick up the products 20 from the loading station 210 and the waiting station 410 respectively through multiple docking components 310, and after moving a predetermined distance in the direction shown by arrow X, it places the products originally picked up from the loading station 210 into the waiting station 410 through multiple docking components 310, and places the products originally picked up from the waiting station 410 into the unloading station 610.

[0048] Specifically, regarding the workflow of the product defect detection equipment 10, the feeding mechanism 200 continuously delivers products 20 to the feeding station 210. The handling mechanism 300 first moves the first product 20 arriving at the feeding station 210 to the waiting station 410. Then, the turntable 400 rotates, moving the product 20 at the waiting station 410 to the detection station 420. The waiting station 410 becomes vacant, and the turntable 400 remains stationary. The detection device 500 then begins to perform defect detection on the product 20 at the detection station 420. While the turntable 400 remains stationary, the handling mechanism 300 can continue to move and move newly arriving products 20 at the feeding station 210 to the vacant waiting station 410. After the testing device 500 completes the testing, the turntable 400 rotates again, moving the tested products 20 on the testing station 420 to the waiting station 410. This moves the untested products 20 from the waiting station 410 to the testing station 420. The testing device 500 then begins testing the newly arrived products 20 on the testing station 420, while the conveying mechanism 300 simultaneously moves the tested products 20 from the waiting station 410 to the unloading station 610 and moves products from the loading station 210 to the waiting station 410. This process repeats continuously, achieving efficient testing of batches of products 20.

[0049] exist Figure 1 and Figure 2In the specific embodiment shown, the waiting station 410 and the detection station 420 on the turntable 400 are located at opposite sides of the turntable 400, and the turntable 400 rotates by 180° to exchange the products 20 on the waiting station 410 and the detection station 420. In addition, a plurality of stations can be arranged on the turntable 400, one of which is the waiting station 410, one of which is the detection station 420, and the remaining stations between the waiting station 410 and the detection station 420 are transfer stations. The turntable 400 always rotates in the same direction. When the turntable 400 is stationary, the detection device 500 detects the product 20 on the detection station 420, the carrying mechanism 300 takes the product 20 on the waiting station 410 after detection and places the undetected product 20, and after the detection and placement of the product are completed, the turntable 400 rotates by a predetermined angle to move the undetected product 20 on the detection station 420 to the detection station 420 for detection, and the detected product 20 on the waiting station 410 after detection is moved to the waiting station 410 and waits for the carrying mechanism 300 to take and carry.

[0050] In summary, the product defect detection equipment 10 provided by the embodiment of the present application uses the carrying mechanism 300 and the turntable 400 to cooperate to transfer the product 20 between the feeding mechanism 200 and the discharging mechanism 600. The feeding station 210, the waiting station 410 on the turntable 400, and the discharging station 610 are arranged at equal intervals along the carrying direction, so that the carrying mechanism 300 can move the product 20 on the plurality of docking assemblies 310 by one station at a time. The turntable 400 rotates to move the product 20 on the waiting station 410 and the detection station 420, so that the carrying mechanism 300 can take and place the product 20 on the waiting station 410 while the detection device 500 detects the product 20 on the detection station 420. Based on the independent operation of the turntable 400 and the carrying mechanism 300 without affecting each other, the carrying and detection of the batch of products 20 are synchronized, thereby effectively improving the efficiency of product detection.

[0051] Since the product defect detection equipment 10 is completely automated, the accuracy of the initial position of the product 20 at the feeding station 210 will directly affect the success rate and stability of the docking assembly 310 taking it, and will also affect the accuracy of the placement position of the product 20 at the waiting station 410, thereby affecting the accuracy of the defect detection by the detection device 500.

[0052] Based on this, as Figure 3As shown in the structure of the feeding mechanism 200, the front end of the feeding station 210 can be provided with a position adjusting assembly 220, which includes a fixed seat 221, a first guide 222, a second guide 223, and an adjusting member 224. The fixed seat 221 is fixed to the feeding mechanism 200, the first guide 222 and the second guide 223 are arranged on the feeding conveying line 230 of the feeding mechanism 200 in a direction (indicated by arrow Y in the figure) perpendicular to the feeding direction (indicated by arrow X in the figure) of the feeding mechanism 200, and the area between the first guide 222 and the second guide 223 is used for the product 20 to pass through, so as to adjust the product 20 to the feeding station 210. It should be noted that in the specific embodiment shown in the figure, the feeding direction and the carrying direction are the same direction, and therefore both are indicated by arrow X, but in other embodiments, the feeding direction and the carrying direction can also be different directions.

[0053] The first guide 222 and the second guide 223 are relatively movably connected to the fixed seat 221 through the adjusting member 224, and the adjusting member 224 is used to drive the first guide 222 and the second guide 223 to move towards or away from each other. Specifically, when detecting the product 20 with a smaller width, the first guide 222 and the second guide 223 are driven by the adjusting member 224 to move towards each other, so that they are close to each other and the distance between them is reduced. The two sides of the product 20 passing through the middle are finally conveyed to the required position of the feeding station 210 under the abutting and guiding action of the first guide 222 and the second guide 223. Conversely, when detecting the product 20 with a larger width, the first guide 222 and the second guide 223 are driven by the adjusting member 224 to move away from each other, so that the distance between them is increased, and thus the two sides of the passing product 20 with a larger width are conveyed to the required position of the feeding station 210 under the abutting and guiding action.

[0054] Therefore, by arranging the position adjusting assembly 220 at the front end of the feeding station 210 on the feeding mechanism 200 and adjusting the movement of the first guide 222 and the second guide 223 by the adjusting member 224 in the position adjusting assembly 220, products 20 with different widths can be conveyed to the specified position of the feeding station 210, thereby providing accurate position guarantee for the subsequent carrying and detection of the product 20, and achieving the purpose of accurate detection.

[0055] When adjusting the position of the product 20 by the position adjusting assembly 220, the product 20 generally needs to be adjusted to the middle, therefore, in order to better ensure that the product 20 is centered, Figure 3As shown, the fixed base 221 includes a first fixed plate 2211 and a second fixed plate 2212 fixed to opposite sides of the feeding mechanism 200 along the direction indicated by arrow Y, and a sliding guide rod 2213 connected between the first fixed plate 2211 and the second fixed plate 2212. The first guide member 222 and the second guide member 223 are respectively provided with a first sliding connecting plate 2221 and a second sliding connecting plate 2231. The first sliding connecting plate 2221 and the second sliding connecting plate 2231 can be movably sleeved on the sliding guide rod 2213. The adjusting component 224 includes a positive and negative threaded screw 2241 rotatably connected between the first fixed plate 2211 and the second fixed plate 2212. The first sliding connecting plate 2221 and the second sliding connecting plate 2231 respectively engage with the threads in opposite directions on the positive and negative threaded screw 2241, so that when the positive and negative threaded screw 2241 rotates, the first guide 222 and the second guide 223 move synchronously towards each other or away from each other at the same speed. Thus, after adjustment, the space between the first guide 222 and the second guide 223 for the product 20 to pass through is still in the middle position of the feeding conveyor line 230, so as to ensure that the product 20 of different widths is always in the center position after passing through the position adjusting component 220.

[0056] Furthermore, such as Figure 3 As shown, one end of the positive and negative thread screw 2241 can protrude from the second fixing plate 2212, and the protruding part is provided with a screwing part 2242. By rotating the screwing part 2242, the positive and negative thread screw 2241 can be rotated, thereby conveniently and quickly adjusting the distance between the first guide member 222 and the second guide member 223.

[0057] In order to allow the first guide member 222 or the second guide member 223 to move under force, such as Figure 3 As shown, a clamping assembly 240 can also be provided on the fixed base 221. The clamping assembly 240 clamps the threaded screw 2241. Before the threaded screw 2241 needs to be turned for adjustment, the clamping assembly 240 is loosened to ensure that the threaded screw 2241 can be turned normally. After the adjustment is in place, the clamping assembly 240 is locked. At this time, the threaded screw 2241 cannot rotate, thereby ensuring that the first guide 222 or the second guide 223 will not move when subjected to the force of the product 20, and ensuring that the product 20 is effectively guided to the middle position of the loading station 210.

[0058] The aforementioned position adjustment component 220 can adjust the position of products 20 of different widths in the direction indicated by arrow Y in the figure. In addition, different products 20 may require different positions along the feeding direction (in the embodiment shown by arrow X in the figure). To ensure the accuracy of the position of different products 20 along the direction indicated by arrow X, this application further proposes an implementation method, which can be found in the following description. Figure 3As shown in the figure, the rear end of the feeding station 210 can be provided with a blocking assembly 250, which is movably connected to the feeding mechanism 200 along the feeding direction of the feeding mechanism 200 (the direction shown by the arrow X in the figure), and the blocking assembly 250 is used to block the product 20 input from the feeding mechanism 200 at the feeding station 210. Specifically, as shown in Figure 3 , the blocking assembly 250 can be sleeved on the sliding shaft 251 of the feeding mechanism 200 to realize sliding in the direction shown by the arrow X, and the blocking assembly 250 can be provided with a locking member 252, and by loosening or tightening the locking member 252, the sliding adjustment and locking of the blocking assembly 250 can be realized.

[0059] Further, as shown in Figure 3 , the blocking assembly 250 can be provided with a feeding sensor 253 (for example, it can be an optical fiber sensor, etc., the same as the sensor mentioned below), and through the feeding sensor 253, whether the product 20 reaches the feeding station 210 can be detected, and after detecting that the product 20 reaches, the carrying mechanism 300 can be controlled to carry it.

[0060] Regarding the specific structure of the docking assembly 310, the present application proposes an embodiment, and for details, please refer to Figure 4 , which shows the structure of the carrying mechanism 300, and the carrying mechanism 300 includes a main body 301, and each docking assembly 310 includes a plurality of air nozzles 311 which are arranged on the main body 301 in a liftable manner, that is, one docking assembly 310 includes a plurality of air nozzles 311, and the plurality of air nozzles 311 included in one docking assembly 310 are used to simultaneously adsorb one product 20.

[0061] It is found in practice that in the single-air-nozzle adsorption mode of the product 20, the product 20 is easy to rotate during the adsorption and carrying process, which causes the position to be dislocated, and further affects the normal positioning and detection. Based on this, in the present embodiment, the multi-air-nozzle 311 simultaneous adsorption mode of one product 20 is adopted, and the rotation of the product 20 during the carrying process is prevented through multi-point fixing, thereby ensuring the accuracy of the position of the product 20 and providing protection for defect detection.

[0062] For the moving mode of the carrying mechanism 300 along the carrying direction and the lifting mode of the plurality of air nozzles 311, some existing linear motion mechanisms such as air cylinders, hydraulic cylinders, electric cylinders, etc. can be used, and the specific details are not limited here. In addition, each docking assembly 310 can be individually and liftable connected with the carrying mechanism 300 to realize independent driving of each docking assembly 310, and of course all docking assemblies 310 can also be collectively and liftable connected with the carrying mechanism 300 through an intermediate connecting part, so as to realize synchronous driving of all docking assemblies 310 through driving of the intermediate connecting part.

[0063] Please refer to Figure 5 andFigure 6 As shown in the figure, the rotary table 400 can include a first rotary table 401, a second rotary table 402, and a third rotary table 403. The first rotary table 401 has a first waiting station 411 and a first detection station 421 on its two sides. The second rotary table 402 has a second waiting station 412 and a second detection station 422 on its two sides. The third rotary table 403 has a third waiting station 413 and a third detection station 423 on its two sides. The first waiting station 411, the second waiting station 412, and the third waiting station 413 are arranged along the conveying direction (indicated by the arrow X in the figure). That is, the first waiting station 411, the second waiting station 412, and the third waiting station 413 are all located on the dot-dash line in the figure, and the feeding station 210 and the discharging station 610 are also located on the dot-dash line. The distance between the feeding station 210 and the first waiting station 411, the distance between the first waiting station 411 and the second waiting station 412, the distance between the second waiting station 412 and the third waiting station 413, and the distance between the third waiting station 413 and the discharging station 610 are equal.

[0064] During the detection process, the plurality of docking assemblies 310 first respectively take the products 20 from the feeding station 210, the first waiting station 411, the second waiting station 412, and the third waiting station 413. Then, the conveying mechanism 300 moves a predetermined distance along the conveying direction. After that, the docking assemblies 310 place the products 20 originally taken from the feeding station 210 on the first waiting station 411, place the products 20 originally taken from the first waiting station 411 on the second waiting station 412, and place the products originally taken from the second waiting station 412 on the third waiting station 413. In this way, all the conveyed products 20 are synchronously moved one station backward.

[0065] The plurality of rotary tables 400 are mainly arranged to detect different types of defects of the products 20. Accordingly, the detection device 500 includes a first detection device 510 located at the first detection station 421, a second detection device 520 located at the second detection station 422, and a third detection device 530 located at the third detection station 423. The first detection device 510, the second detection device 520, and the third detection device 530 perform different types of defect detection on the products 20 at the corresponding detection stations.

[0066] In this embodiment, the product 20 is subjected to more comprehensive defect detection by setting multiple turntables 400 and detection devices 500. On this basis, in order to ensure the efficiency of product 20 handling, the feeding station 210, multiple waiting stations 410 of the turntables 400 and the discharging station 610 are arranged at equal intervals along the conveying direction, so that after the multiple docking assemblies 310 respectively take the products 20 on the feeding station 210 and the multiple waiting stations 410, the conveying mechanism 300 can move once along the conveying direction to move all the taken products to the rear by one station, which is high in conveying efficiency. At the same time, during the conveying process, all the detection devices 500 can normally detect the defects of the product 20 on the corresponding detection stations 420, and the detection work of all the detection stations 420 and the conveying work are not affected, thereby the efficiency of detecting the product 20 can be improved.

[0067] In order to reduce the volume of the product defect detection equipment 10 as much as possible, as shown in Figure 5 and Figure 6 , the center lines of the first turntable 401, the second turntable 402 and the third turntable 403 can form a triangle, which can make the positions of the multiple turntables 400 more compact, and the volume of the entire product defect detection equipment 10 is smaller.

[0068] For defect detection of the display screen, please refer to Figure 6 and Figure 7 , in which Figure 7 shows the cross-sectional structure of the clamp 430. As shown in the figure, the clamp 430 can be arranged on the first turntable 401, and the clamp 430 is provided with a light-transmitting glass 431. The clamp 430 is used to place the display screen 21 and support the bottom of the display screen 21 through the light-transmitting glass 431. The position opposite to the clamp 430 on the first turntable 401 is provided with a light passage (the light passage is blocked by the clamp 430 in the figure and cannot be seen). As shown in Figure 5 and Figure 6 , the first detection device 510 includes a first stand 511, a first camera 512 and a first light source group 513. The first stand 511 is fixed at the first detection station 421. The first camera 512 is connected to the first stand 511 in a lifting manner and is arranged towards the first detection station 421. The first light source group 513 includes a high-position annular light source 5131 and a backlight source 5132. The high-position annular light source 5131 is connected to the first stand 511 in a lifting manner and is located below the first camera 512. The first camera 512 and the high-position annular light source 5131 can be controlled by Figure 5The hand screw 540 shown in the middle realizes the fixation after adjusting to the required height on the first column 511, and the same applies to other cameras and liftable light sources mentioned below. The backlight 5132 is arranged at the bottom of the light passage of the first turntable 401, and the first camera 512 is used to take pictures and images when the high-positioned ring-shaped light source 5131 and the backlight 5132 respectively and individually light the display screen 21 on the clamp 430. For the lighting needs of different display screens 21, the first camera 512 and the high-positioned ring-shaped light source 5131 can be lifted to the required height for lighting and photographing. After the high-positioned ring-shaped light source 5131 lights the display screen 21 and the first camera 512 takes pictures and images, the machine recognition algorithm can be used to analyze the images to detect whether there are bubbles, burrs, etc. on the film of the display screen 21, and the backlight 5132 can be used to detect whether there are defects on the edge of the display screen 21.

[0069] In the clamp 430, since it is supported at the bottom of the display screen 21 through the light-transmitting glass 431, when the backlight 5132 lights the display screen 21, the light can penetrate the light-transmitting glass 431 and completely cover the display screen 21, thereby ensuring the accuracy of detection.

[0070] Please continue to refer to Figure 5 and Figure 6 , the first suction seat 440 can be arranged on the second turntable 402, and the first suction seat 440 is used to adsorb the display screen 21 through negative pressure. The second detection device 520 includes a second column 521, a second camera 522, and a second light source group 523. The second column 521 is fixed at the second detection station 422, the second camera 522 is liftable and connected to the second column 521 and is arranged towards the second detection station 422, and the second light source group 523 includes a coaxial light source 5231 and a first side light source 5232. The coaxial light source 5231 is liftable and connected to the second column 521 and is located below the second camera 522, and the first side light source 5232 is arranged towards the second detection station 422 and is used to light the first side edge of the display screen 21 on the first suction seat 440. The second camera 522 is used to take pictures and images when the coaxial light source 5231 and the first side light source 5232 respectively and individually light the display screen 21 on the first suction seat 440. Similarly, before the detection operation, for the display screen 21 to be detected, the second camera 522 and the coaxial light source 5231 are adjusted to the appropriate height. After the display screen 21 is lighted and imaged by the coaxial light source 5231, it can be detected whether there are defects on the surface of the display screen, and after the first side edge of the display screen 21 is lighted and imaged by the first side light source 5232, it can be more accurately detected whether there are defects on the first side edge.

[0071] On the second turntable 402, the display screen 21 is adsorbed and fixed by the first adsorption seat 440, so that the side edges of the display screen 21 are completely exposed, and when the first side light source 5232 is used to light the first side of the display screen 21, the light can normally cover the complete side of the display screen 21, thereby ensuring the imaging effect of the second camera 522, and providing protection for subsequent defect detection and analysis.

[0072] As shown in Figure 5 and Figure 6 , the third turntable 403 is provided with a second adsorption seat 450 which is the same as the first adsorption seat 440, and the third detection device 530 includes a third stand 531, a third camera 532 and a third light source group 533. The third stand 531 is fixed at the third detection station 423, the third camera 532 is connected to the third stand 531 in a lifting manner and is arranged towards the third detection station 423, and the third light source group 533 includes a low-position annular light source 5331 and a second side light source 5332. The low-position annular light source 5331 is connected to the third stand 531 in a lifting manner and is located below the third camera 532, and the second side light source 5332 is arranged towards the third detection station 423. The second side light source 5332 is used to light the second side of the display screen 21 on the second adsorption seat 450, and the third camera 532 is used to take images when the low-position annular light source 5331 and the second side light source 5332 respectively light the display screen 21 on the second adsorption seat 450. The low-position annular light source 5331 can be used to detect whether the edge of the film on the display screen 21 is warped or the like, and the second side light source 5332 can be used to more accurately detect whether the second side of the display screen 21 has defects.

[0073] It should be noted that the first side and the second side of the display screen 21 are opposite sides, that is, the first side light source 5232 and the second side light source 5332 respectively light the opposite sides of the display screen 21 during detection, so that more comprehensive defect detection of the display screen 21 is realized.

[0074] The above is only one specific implementation manner of the detection device 500 provided by the embodiment of the present application, and in other embodiments, the detection device 500 can be designed accordingly according to the needs of different types of display screens or other types of products to be detected.

[0075] In order to facilitate the fixation of display screens 21 of different shapes and sizes, as shown in Figure 7 , the clamp 430 can include a clamp mounting seat 432 and a clamp body 433. The clamp mounting seat 432 is fixed to the first turntable 401, the light-transmitting glass 431 is arranged on the clamp mounting seat 432, and the clamp body 433 is press-connected to the light-transmitting glass 431 and detachably connected to the clamp mounting seat 432.

[0076] By detachably connecting the clamp body 433 with the clamp mounting seat 432, when fixing display screens 21 of different shapes or sizes, the corresponding clamp body 433 can be replaced.

[0077] In Figure 7 the specific embodiment shown, the clamp mounting seat 432 can include a base 4321 and a pressing plate 4322, the inner periphery of the base 4321 is provided with a stepped groove, and the light-transmitting glass 431 and the clamp body 433 are stacked in the stepped groove in sequence, and then the pressing plate 4322 is crimped on the clamp body 433 and connected with the base 4321 by hand screws to fix the clamp body 433. The clamp body 433 can be replaced by detaching the pressing plate 4322 from the base 4321, and the whole process is convenient and fast.

[0078] Please refer to Figure 8 , the figure shows the three-dimensional structure of the blanking mechanism 600, as shown in the figure, the blanking mechanism 600 can be provided with a partition 620 at the output end, which separates the output end of the blanking mechanism 600 into an OK end 631 and an NG end 632. The blanking mechanism 600 is provided with a first position 601 and a second position 602 upstream of the output end, the first position 601 and the second position 602 are arranged along the pushing direction, and the Figure 8 in the specific embodiment shown, the discharging direction of the blanking mechanism 600 is the direction indicated by arrow X in the figure, and the pushing direction is the direction indicated by arrow Y perpendicular to the direction indicated by arrow X. In some other embodiments, the pushing direction can also be other directions that form an acute angle or an obtuse angle with the direction indicated by arrow X.

[0079] Among them, the blanking station 610, the first position 601 and the OK end 631 are collinear along the direction indicated by arrow X (as shown by the single-dot dashed line in Figure 8 , based on this, the qualified product 20 on the blanking station 610 can be conveyed to the OK end along the direction indicated by arrow X through the blanking conveying line 640 of the blanking mechanism 600.

[0080] The second position 602 is collinear with the NG end 632 along the direction indicated by arrow X (as shown by the double-dot dashed line in Figure 8 , the product defect detection equipment 100 further comprises a pushing mechanism 650, which is arranged on the blanking mechanism 600. The unqualified product 20 is conveyed to the first position 601 from the blanking station 610 along the direction indicated by arrow X, and then pushed by the pushing mechanism 650 along the direction indicated by arrow Y to the second position 602, and then conveyed to the NG end 632 through the blanking conveying line 640, so as to reject the unqualified product 20. The pushing mechanism 650 can specifically adopt mechanisms such as air cylinder, electric cylinder and hydraulic cylinder.

[0081] Further, as Figure 8As shown in the figure, the front end of the pushing mechanism 650 can be provided with a pushing sensor 660 (for example, an optical fiber sensor), when the pushing sensor 660 detects that there is a substandard product 20 passing through, the pushing mechanism 650 is automatically controlled to extend to push the substandard product 20 to the position opposite to the NG end 632, and is conveyed to the NG end through the discharging conveying line 640.

[0082] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application. Especially, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A product defect detection apparatus characterized by comprising: The utility model relates to a kind of product detection device, including: Cabinet; Feeding mechanism, output end extends to the inside of the cabinet, and there is feeding station in the inside of the cabinet, the feeding mechanism is used to deliver the product to be detected to the feeding station; Rotary table, rotatably arranged in the cabinet, the two sides of the rotary table are waiting station and detection station respectively, the rotary table is used to carry product, and product is moved between the waiting station and the detection station by rotation; Detection device, arranged in the cabinet and located at the detection station, for defect detection on the product of the detection station; Discharging mechanism, input end extends to the inside of the cabinet, and there is discharging station in the inside of the cabinet, the discharging mechanism is used to output the product of the discharging station, wherein the feeding station, the waiting station and the discharging station are arranged at equal intervals along the conveying direction; Conveying mechanism, movably arranged in the inside of the cabinet along the conveying direction, with a plurality of docking assemblies arranged along the conveying direction, the conveying mechanism is used to take the product of the feeding station and the waiting station by a plurality of docking assemblies respectively, and after moving a predetermined distance along the conveying direction, the product originally taken from the feeding station is placed in the waiting station by a plurality of docking assemblies, and the product originally taken from the waiting station is placed in the discharging station.

2. The product defect detection apparatus according to claim 1, characterized by, The front end of the feeding station is provided with a position adjusting assembly, and the position adjusting assembly comprises a fixed seat, a first guide, a second guide and an adjusting member. The fixed seat is fixed to the feeding mechanism, the first guide and the second guide are arranged on the feeding conveying line of the feeding mechanism along a direction perpendicular to the feeding direction of the feeding mechanism, and the area between the first guide and the second guide is used for the product to pass through to adjust the product to the feeding station. The first guide and the second guide are movably connected to the fixed seat by the adjusting member, and the adjusting member is used to drive the first guide and the second guide to move towards or away from each other.

3. The product defect detection apparatus according to claim 2, characterized by, The fixed seat comprises a first fixed plate and a second fixed plate fixed to the feeding mechanism on opposite sides along the feeding direction, and a sliding guide rod connected between the first fixed plate and the second fixed plate, and the first guide and the second guide are respectively provided with a first sliding connection plate and a second sliding connection plate, and the first sliding connection plate and the second sliding connection plate are movably sleeved on the sliding guide rod. The adjusting member comprises a reversible screw rod rotatably connected between the first fixed plate and the second fixed plate, and the first sliding connection plate and the second sliding connection plate are respectively matched with the threads in opposite directions on the reversible screw rod, so that when the reversible screw rod rotates, the first guide and the second guide move towards or away from each other at the same speed.

4. The product defect detection apparatus according to claim 1, characterized by, The rear end of the feeding station is provided with a blocking assembly, which is movably connected to the feeding mechanism along the feeding direction of the feeding mechanism, and is used to block the products input by the feeding mechanism in the feeding station.

5. The product defect detection apparatus according to claim 1, characterized by, The carrying mechanism further comprises a main body, and each of the docking assemblies comprises a plurality of air nozzles arranged on the main body in a liftable manner, and the plurality of air nozzles of one docking assembly are used to simultaneously adsorb one product.

6. The product defect detection apparatus according to claim 1, characterized by, The rotating disc comprises a first rotating disc, a second rotating disc and a third rotating disc, the two sides of the first rotating disc are a first waiting station and a first detection station respectively, the two sides of the second rotating disc are a second waiting station and a second detection station respectively, and the two sides of the third rotating disc are a third waiting station and a third detection station respectively. The first waiting station, the second waiting station and the third waiting station are arranged along the carrying direction, and the distance between the feeding station and the first waiting station, the distance between the first waiting station and the second waiting station, the distance between the second waiting station and the third waiting station, and the distance between the third waiting station and the discharging station are equal. The plurality of docking assemblies are used to respectively take the products of the feeding station, the first waiting station, the second waiting station and the third waiting station first, and then place the products originally taken from the feeding station on the first waiting station, the products originally taken from the first waiting station on the second waiting station, the products originally taken from the second waiting station on the third waiting station, and the products originally taken from the third waiting station on the discharging station after moving a predetermined distance along the carrying direction with the carrying mechanism. The detection device comprises a first detection device at the first detection station, a second detection device at the second detection station, and a third detection device at the third detection station, and the first detection device, the second detection device and the third detection device are used to detect different types of defects of the products.

7. The product defect detection apparatus according to claim 6, characterized by The center lines of the first rotating disc, the second rotating disc and the third rotating disc form a triangle.

8. The product defect detection apparatus according to claim 6, characterized by, The product defect detection equipment is used for defect detection of a display screen. The first rotating disc is provided with a clamp, the clamp is provided with a light-transmitting glass, the clamp is used to place the display screen and support the bottom of the display screen through the light-transmitting glass, a light passage is formed at the position opposite to the clamp of the first rotating disc, the second rotating disc and the third rotating disc are respectively provided with a first adsorption seat and a second adsorption seat, and the first adsorption seat and the second adsorption seat are used to adsorb the display screen through negative pressure. The first detection device comprises a first stand, a first camera and a first light source group, the first stand is fixed at the first detection station, the first camera is liftable connected to the first stand and is arranged towards the first detection station, the first light source group comprises a high-position annular light source and a backlight source, the high-position annular light source is liftable connected to the first stand and is located below the first camera, the backlight source is arranged at the bottom of the light transmission port, and the first camera is used for taking pictures and imaging when the high-position annular light source and the backlight source respectively and independently light the display screen on the clamp; The second detection device comprises a second stand, a second camera and a second light source group, the second stand is fixed at the second detection station, the second camera is liftable connected to the second stand and is arranged towards the second detection station, the second light source group comprises a coaxial light source and a first side light source, the coaxial light source is liftable connected to the second stand and is located below the second camera, and the first side light source is arranged towards the second detection station, the first side light source is used for lighting the first side edge of the display screen on the first adsorption seat, and the second camera is used for taking pictures and imaging when the coaxial light source and the first side light source respectively and independently light the display screen on the first adsorption seat; The third detection device comprises a third stand, a third camera and a third light source group, the third stand is fixed at the third detection station, the third camera is liftable connected to the third stand and is arranged towards the third detection station, the third light source group comprises a low-position annular light source and a second side light source, the low-position annular light source is liftable connected to the third stand and is located below the third camera, the second side light source is arranged towards the third detection station, the second side light source is used for lighting the second side edge of the display screen on the second adsorption seat, wherein the first side edge and the second side edge of the display screen are opposite side edges, and the third camera is used for taking pictures and imaging when the low-position annular light source and the second side light source respectively and independently light the display screen on the second adsorption seat.

9. The product defect detection apparatus according to claim 8, characterized by, The clamp comprises a clamp mounting seat and a clamp body, the clamp mounting seat is fixed on the first turntable, the light transmission glass is arranged on the clamp mounting seat, and the clamp body is press-connected on the light transmission glass and is detachably connected with the clamp mounting seat.

10. The product defect detection apparatus according to claim 1, characterized by, The blanking mechanism is provided with a partition at the output end, and the partition divides the output end of the blanking mechanism into an OK end and an NG end; The blanking mechanism is provided with a first position and a second position upstream of the output end, and the first position and the second position are arranged in a pushing direction, wherein the pushing direction is arranged at an angle with respect to the discharging direction of the blanking mechanism; The blanking station, the first position and the OK end are collinear along the discharging direction, so that the qualified products on the blanking station are conveyed to the OK end along the discharging direction through the blanking conveying line of the blanking mechanism; The second position is collinear with the NG end along the discharging direction, and the product defect detection device further comprises a pushing mechanism arranged on the discharging mechanism, the pushing mechanism being configured to push the unqualified product reaching the first position to the second position along the pushing direction, so that the unqualified product is conveyed to the NG end along the discharging direction through the discharging conveying line.

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