Screen glass appearance detection equipment

Abstract

The utility model discloses screen glass appearance detection equipment which comprises a machine frame, a visual sensor, a lamp box, a first linear moving module, a material supporting plate and a material grabbing mechanical arm, the visual sensor, the lamp box, the first linear moving module, the material supporting plate and the material grabbing mechanical arm are arranged on the machine frame, the lamp box is fixedly connected with the machine frame, and the bottom of the lamp box and a table top of the machine frame are arranged at intervals. The first linear moving module is arranged in an interval space formed by the bottom of the lamp box and the table top of the rack in a penetrating mode, the material supporting plate is connected with the first linear moving module, the visual sensor is arranged above the top of the lamp box, and the capturing direction of the visual sensor faces the bottom of the lamp box; after the screen glass is subjected to image capture by the visual sensor, the screen glass is taken away from the material supporting plate by the material grabbing manipulator. According to the utility model, the structural design is compact, the occupied space is reduced, and meanwhile, the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, and in particular to a screen glass appearance detection device. Background Art

[0002] During mobile phone screen production, a key step involves visual inspection of the bare glass (i.e., the glass before polarizers are attached). Currently, equipment used for visual inspection of bare glass is often bulky and inefficient. This is due to poor structural layout, such as the scattered placement of visual camera stations and material handling mechanisms. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a screen glass appearance detection device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a screen glass appearance detection device, including a frame, and a visual sensor, a light box, a first linear motion module, a material support plate and a grabbing robot arranged on the frame. The light box is fixedly connected to the frame, and the bottom of the light box is spaced apart from the table top of the frame. The first linear motion module is inserted into the interval space formed by the bottom of the light box and the table top of the frame. The material support plate is connected to the first linear motion module. The visual sensor is arranged above the top of the light box, and the capturing direction of the visual sensor is toward the bottom of the light box. After the screen glass is captured by the visual sensor, the grabbing robot takes the screen glass away from the material support plate.

[0006] Furthermore, the bottom of the light box is open, and a light guide plate is provided inside the light box.

[0007] Furthermore, the first linear motion module includes a first linear motor, a first linear slide, a first linear slide rail and a first linear slider; the first linear slide is fixed to the table of the frame; the first linear slide rail is fixedly connected to the first linear slide; the first linear slider is slidingly connected to the first linear slide rail; the first linear motor is transmission-connected to the first linear slider; the material support plate is fixedly connected to the first linear slider; when the material support plate carrying the screen glass moves to the bottom of the light box, the visual sensor captures an image of the screen glass.

[0008] Furthermore, it also includes a second linear motion module, and the grabbing robot is connected to the second linear motion module.

[0009] Furthermore, the second linear motion module includes a second linear motor, a second linear slide, a second linear slide rail and a second linear slider. The second linear slide is fixed to the table of the frame, the second linear slide rail is fixedly connected to the second linear slide, the second linear slider is slidingly connected to the second linear slide rail, the second linear motor is transmission-connected to the second linear slider, and the grabbing robot is fixedly connected to the second linear slider.

[0010] Furthermore, the moving direction of the material grabbing robot is parallel to the moving direction of the material supporting plate.

[0011] Furthermore, it also includes a waste conveyor belt, which is perpendicular to the moving direction of the grabbing robot.

[0012] Furthermore, the table top of the frame is provided with a supporting column, the second linear slide is fixedly connected to the supporting column, a spacing space is formed between the bottom of the second linear slide and the table top of the frame, and the waste conveyor belt is passed through the spacing space.

[0013] Furthermore, the feed end of the waste conveyor belt is arranged close to one end of the first linear moving module.

[0014] Furthermore, the grabbing robot includes a grab bracket, a lifting cylinder, a suction nozzle and a suction nozzle mounting plate. The grab bracket is fixedly connected to the second linear slider, the suction nozzle is arranged on the suction nozzle mounting plate, the lifting cylinder is installed on the grab bracket, and the suction nozzle mounting plate is connected to the lifting cylinder; under the action of the lifting cylinder, the suction nozzle mounting plate drives the suction nozzle to perform lifting movements.

[0015] Compared with the prior art, the present invention has the following advantages: a screen glass appearance inspection device, comprising a frame, a visual sensor, a light box, a first linear motion module, a material support plate, and a material gripping manipulator, the light box being fixedly connected to the frame, the bottom of the light box being spaced apart from the frame's tabletop, the first linear motion module being inserted into the space formed between the bottom of the light box and the frame's tabletop, the material support plate being connected to the first linear motion module, the visual sensor being positioned above the top of the light box, the visual sensor's capture direction being oriented toward the bottom of the light box, and the screen glass being removed from the material support plate by the material gripping manipulator after the visual sensor captures the image. The present invention arranges the visual sensor above the top of the light box and the first linear motion module in the space formed between the bottom of the light box and the frame's tabletop, so that when the screen glass moves to the bottom of the light box for photographing, it can be directly moved, and the subsequent material gripping manipulator can directly grip it. The structural design is compact, reduces space occupation, and greatly improves work efficiency.

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In addition, in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic structural diagram of a screen glass appearance inspection device provided by a specific embodiment of the present utility model;

[0019] Figure 2 A partial structural diagram of a screen glass appearance inspection device provided in a specific embodiment of the utility model.

[0020] Reference numerals

[0021] 1. Frame; 2. Vision sensor; 3. Light box; 4. First linear motion module; 41. First linear slide; 42. First linear slide rail; 43. First linear slider; 5. Material support plate; 6. Material grabbing robot; 61. Gripper bracket; 62. Lifting cylinder; 63. Suction nozzle; 64. Suction nozzle mounting plate; 7. Second linear motion module; 71. Second linear motor; 72. Second linear slide; 73. Second linear slider; 8. Scrap conveyor belt. DETAILED DESCRIPTION

[0022] The following will be combined with the specific embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0025] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0028] like Figures 1 to 2 As shown, an embodiment of the utility model provides a screen glass appearance detection device, including a frame 1, and a visual sensor 2, a light box 3, a first linear motion module 4, a material support plate 5 and a grabbing robot 6 arranged on the frame 1. The light box 3 is fixedly connected to the frame 1, and the bottom of the light box 3 is spaced apart from the table top of the frame 1. The first linear motion module 4 is passed through the interval space formed by the bottom of the light box 3 and the table top of the frame 1. The material support plate 5 is connected to the first linear motion module 4. The visual sensor 2 is arranged above the top of the light box 3, and the capturing direction of the visual sensor 2 is toward the bottom of the light box 3; after the screen glass is captured by the visual sensor 2, the grabbing robot 6 takes the screen glass away from the material support plate 5.

[0029] Specifically, the rack 1 provides the basic support structure for the equipment. The light box 3 is fixedly connected to the rack 1, with its bottom spaced apart from the table of the rack 1. The bottom of the light box 3 is open, and a light guide plate is provided inside the light box 3. The light box 3 is used to provide uniform lighting for the visual sensor 2. The visual sensor 2 is located above the top of the light box 3, with its capture direction toward the bottom of the light box 3, and is used to capture images of the screen glass. The visual sensor 2 can be mounted on the light box 3 or on the table of the rack 1 via a bracket. The material gripping robot 6 is used to grab the screen glass after the image is captured by the visual sensor 2 and remove it from the material support plate 5.

[0030] By positioning the vision sensor 2 above the top of the light box 3 and the first linear motion module 4 in the space between the bottom of the light box 3 and the top of the frame 1, the system occupies a small footprint and saves space. The light box 3 provides uniform illumination, allowing the vision sensor 2 to accurately capture the appearance of the screen glass. The first linear motion module 4 allows the screen glass to be moved directly after the image is captured, reducing operation steps and time. The gripper 6 efficiently grasps the screen glass and removes it from the material support plate 5.

[0031] In one embodiment, if Figure 2As shown, the first linear motion module 4 includes a first linear motor, a first linear slide 41, a first linear slide rail 42 and a first linear slider 43. The first linear slide 41 is fixed to the table of the frame 1, the first linear slide rail 42 is fixedly connected to the first linear slide 41, the first linear slider 43 is slidingly connected to the first linear slide rail 42, the first linear motor is transmission-connected to the first linear slider 43, and the material support plate 5 is fixedly connected to the first linear slider 43; when the material support plate 5 carrying the screen glass moves to the bottom of the light box 3, the visual sensor 2 captures the image of the screen glass.

[0032] Specifically, the first linear motor is used to provide driving force, achieving precise linear motion through an electrical control system. This linear motor can be a stepper motor or a servo motor to meet different precision and speed requirements. The first linear slide 41 is fixed to the tabletop of the frame 1 and supports the entire first linear motion module 4. The slide is made of high-strength materials such as aluminum alloy or stainless steel to ensure stability and durability. The first linear rail 42 is fixedly connected to the first linear slide 41, providing a precise guide path. The first linear slider 43 is slidably connected to the first linear rail 42, allowing smooth movement along the rail. High-precision ball bearings or sliding bearings are installed inside the slider to reduce friction and improve movement smoothness. The material support plate 5 is fixedly connected to the first linear slider 43 to support and secure the screen glass. The first linear motor is connected to the first linear slider 43 via a transmission component (such as a belt, gears, or a screw) to achieve driving force transmission. During operation, after receiving a control signal, the first linear motor drives the first linear slider 43 along the first linear rail 42, driving the material support plate 5. When the material support plate 5 carrying the screen glass moves to the bottom of the light box 3, the visual sensor 2 begins to capture high-precision images of the screen glass. After the acquisition is completed, the material support plate 5 continues to move toward the direction close to the grabbing robot 6 to avoid the light box 3, which is conducive to the grabbing of the screen glass by the grabbing robot 6.

[0033] In one embodiment, if Figure 2 As shown, the screen glass appearance inspection device also includes a second linear motion module 7, and the material grabbing robot 6 is connected to the second linear motion module 7. The second linear motion module 7 is used to accurately move the material grabbing robot 6 along a specified path to grab or place the screen glass. The second linear motion module 7 includes a second linear motor 71, a second linear slide 72, a second linear slide rail, and a second linear slider 73. The second linear slide 72 is fixed to the table of the frame 1, the second linear slide rail is fixedly connected to the second linear slide 72, the second linear slider 73 is slidably connected to the second linear slide rail, the second linear motor 71 is transmission-connected to the second linear slider 73, and the material grabbing robot 6 is fixedly connected to the second linear slider 73.

[0034] Specifically, the second linear motor 71 is used to provide driving force and achieve precise linear movement through an electrical control system. The linear motor can be a stepper motor or a servo motor to meet different accuracy and speed requirements. The second linear slide 72 is fixed to the table of the frame 1 and is used to support the entire linear motion module. The second linear slide is fixedly connected to the second linear slide 72 to provide a precise guide path. The second linear slider 73 is slidably connected to the second linear slide and can move smoothly along the slide. The grabbing robot 6 is fixedly connected to the second linear slider 73 and is used to grab and place the screen glass. The second linear motor 71 is connected to the second linear slider 73 through a transmission component (such as a belt, gear or screw) to achieve driving force transmission. During operation, after receiving the control signal, the second linear motor 71 drives the second linear slider 73 to move along the second linear slide, driving the grabbing robot 6 to move along the specified path. When the visual sensor 2 completes image acquisition, the grabbing robot 6 moves the material grabbing position to grab and remove the screen glass.

[0035] Specifically, the moving direction of the material grabbing manipulator 6 is parallel to the moving direction of the material support plate 5. With this design, only coordination and control in one direction is required, without the need for additional complex mechanisms to achieve multi-directional movement, which shortens the material processing time and improves overall work efficiency.

[0036] In one embodiment, if Figure 2 As shown, the screen glass appearance inspection equipment also includes a waste conveyor belt 8, which is used to place unqualified screen glass and transport it to a designated location. The waste conveyor belt 8 is perpendicular to the movement direction of the grabber arm 6. When the visual sensor 2 completes image acquisition and finds that the current screen glass is unqualified, the grabber arm 6 grabs the unqualified screen glass and places it on the waste conveyor belt 8. The tabletop of the frame 1 is equipped with support columns, and the second linear slide 72 is fixedly connected to the support columns. A space is formed between the bottom of the second linear slide 72 and the tabletop of the frame 1, and the waste conveyor belt 8 is installed in this space. This design allows the waste conveying and picking operations to be independent of each other. The conveyor belt can continue to operate while the grabber arm 6 places the waste, improving overall work pace and efficiency. It also prevents the waste conveyor belt 8 from interfering with the operation of the grabber arm 6, making the picking and placing operations smoother. Furthermore, the grabber arm 6 can directly place the unqualified screen glass on the conveyor belt, eliminating the need for complex path planning and improving operational efficiency. In addition, the waste material transfer and material grabbing operations are independent of each other. The conveyor belt can continue to run while the material grabbing robot 6 places the waste, thereby improving the overall work rhythm and efficiency.

[0037] like Figure 2As shown, the feed end of the waste conveyor belt 8 is arranged near one end of the first linear moving module 4. With this design, the grabbing robot 6 only needs to move a short distance to place the waste on the feed end of the waste conveyor belt 8, reducing the movement path and time of the grabbing robot 6 and improving the overall operation efficiency.

[0038] like Figure 2 As shown, the grabbing robot 6 includes a grab bracket 61, a lifting cylinder 62, a suction nozzle 63 and a suction nozzle mounting plate 64. The grab bracket 61 is fixedly connected to the second linear slider 73, the suction nozzle 63 is arranged on the suction nozzle mounting plate 64, the lifting cylinder 62 is installed on the grab bracket 61, and the suction nozzle mounting plate 64 is connected to the lifting cylinder 62; under the action of the lifting cylinder 62, the suction nozzle mounting plate 64 drives the suction nozzle 63 to perform lifting movements.

[0039] Specifically, the gripper bracket 61 is used to support the lifting cylinder 62 and the nozzle mounting plate 64, and its material can be selected from aluminum alloy or stainless steel to ensure the stability and durability of the structure. The gripper bracket 61 is fixedly connected to the second linear slider 73 by bolts or welding to ensure that it can achieve horizontal movement under the drive of the second linear slider 73. The lifting cylinder 62 is installed on the gripper bracket 61. The selection of the lifting cylinder 62 should be based on the required lifting stroke and load capacity. The nozzle mounting plate 64 is fixedly connected to the piston rod of the lifting cylinder 62 through a connecting piece to ensure that precise lifting and lowering motion can be achieved under the action of the lifting cylinder 62. A plurality of mounting holes are provided on the nozzle mounting plate 64 to facilitate the fixation and adjustment of the nozzle 63. The nozzle 63 is mounted on the nozzle mounting plate 64 by threads or a quick release device.

[0040] During operation, the grabbing robot 6 moves horizontally to the target position driven by the second linear slider 73. The lifting cylinder 62 is actuated, causing the nozzle mounting plate 64 and the nozzle 63 to descend close to the surface of the screen glass. The nozzle 63 contacts the screen glass and activates the adsorption function through the internal vacuum system to firmly grasp the screen glass. The lifting cylinder 62 lifts the nozzle mounting plate 64 and the nozzle 63, and lifts the grabbed screen glass to an appropriate height. If the grabbed screen glass is a qualified product, it is placed in the designated position for qualified products. If the grabbed screen glass is an unqualified product, it is moved horizontally to the feed end of the waste conveyor belt 8 driven by the second linear slider 73, and the lifting cylinder 62 descends to place the unqualified screen glass, and then releases the adsorption function to complete the transfer and placement of the unqualified screen glass.

[0041] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A screen glass appearance inspection device, characterized in that: The device comprises a frame, a visual sensor, a light box, a first linear motion module, a material support plate, and a material grabbing robot arranged on the frame, wherein the light box is fixedly connected to the frame, and the bottom of the light box is spaced apart from the table top of the frame, the first linear motion module is inserted into the space formed by the bottom of the light box and the table top of the frame, the material support plate is connected to the first linear motion module, the visual sensor is arranged above the top of the light box, and the capturing direction of the visual sensor is toward the bottom of the light box; After the screen glass is captured by the visual sensor, the material grabbing robot takes the screen glass away from the material support plate.

2. The screen glass appearance inspection device according to claim 1, characterized in that: The bottom of the light box is open, and a light guide plate is provided inside the light box.

3. The screen glass appearance inspection device according to claim 1, characterized in that: The first linear motion module includes a first linear motor, a first linear slide, a first linear slide rail and a first linear slider. The first linear slide is fixed to the table of the frame, the first linear slide rail is fixedly connected to the first linear slide, the first linear slider is slidably connected to the first linear slide rail, the first linear motor is transmission-connected to the first linear slider, and the material support plate is fixedly connected to the first linear slider. When the material support plate carrying the screen glass moves to the bottom of the light box, the visual sensor captures an image of the screen glass.

4. The screen glass appearance inspection device according to claim 1, characterized in that: It also includes a second linear motion module, and the grabbing robot is connected to the second linear motion module.

5. The screen glass appearance inspection device according to claim 4, characterized in that: The second linear motion module includes a second linear motor, a second linear slide, a second linear slide rail and a second linear slider. The second linear slide is fixed to the table of the frame, the second linear slide rail is fixedly connected to the second linear slide, the second linear slider is slidingly connected to the second linear slide rail, the second linear motor is transmission-connected to the second linear slider, and the grabbing robot is fixedly connected to the second linear slider.

6. The screen glass appearance inspection device according to claim 5, characterized in that: The moving direction of the material grabbing robot is parallel to the moving direction of the material supporting plate.

7. The screen glass appearance inspection device according to claim 5, characterized in that: It also includes a waste conveyor belt, which is perpendicular to the moving direction of the grabbing robot.

8. The screen glass appearance inspection device according to claim 7, characterized in that: The table top of the frame is provided with a supporting column, the second linear slide is fixedly connected to the supporting column, a spacing space is formed between the bottom of the second linear slide and the table top of the frame, and the waste conveyor belt is passed through the spacing space.

9. The screen glass appearance inspection device according to claim 7, characterized in that: The feed end of the waste conveyor belt is arranged close to one end of the first linear moving module.

10. The screen glass appearance inspection device according to claim 5, characterized in that: The material grabbing robot includes a gripper bracket, a lifting cylinder, a suction nozzle and a suction nozzle mounting plate. The gripper bracket is fixedly connected to the second linear slider, the suction nozzle is arranged on the suction nozzle mounting plate, the lifting cylinder is installed on the gripper bracket, and the suction nozzle mounting plate is connected to the lifting cylinder; under the action of the lifting cylinder, the suction nozzle mounting plate drives the suction nozzle to perform lifting movements.

Images