Device for optically and fully detecting planeness of front shell of tablet personal computer

Abstract

The utility model discloses an optical full-inspection tablet computer front shell planeness device, which relates to the technical field of optical detection and comprises a fixing frame, a connecting frame used for bearing is fixedly connected to the upper surface of the fixing frame, a camera used for detection is arranged in the connecting frame, and a supporting plate used for connection is arranged on the left side of the connecting frame. A lens of the camera focuses light on the surface of the front shell to a photosensitive element of the camera to form a digital image signal, the digital image comprises information such as the shape, texture and color of the front shell, the image acquired by the camera is analyzed through an algorithm, the flatness deviation is calculated through an image recognition algorithm, and visual detection of the camera is in a non-contact mode. Therefore, the front shell of the tablet personal computer cannot be scratched or damaged, the method is particularly suitable for materials of which the surfaces are easily scratched, non-contact detection can be carried out more quickly, and due to the fact that factors such as contact pressure between the probe and the front shell do not need to be considered, the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical detection technical field, especially relate to a kind of optical full inspection flat-panel computer front shell flatness device. BACKGROUND

[0002] In the production and manufacturing process of flat-panel computer, flat-panel computer front shell is key component, and its quality directly affects the overall performance and appearance quality of product. Especially, the flatness of front shell is a key index that cannot be ignored.

[0003] 1, image pre-processing technology: gray processing is the first step, and converting color image into gray image can reduce data volume, while retaining the shape and texture information of image.

[0004] 2, edge detection and contour extraction technology: Canny edge detection algorithm is a kind of efficient edge detection method.

[0005] At present, in order to guarantee the quality control of flat-panel computer front shell flatness, manufacturers adopt various detection means and related technologies. Commonly used are contact measurement methods, such as using probe gauge, contacting probe with front shell surface, sensing height difference at different positions, and then calculating flatness.

[0006] Although this method can obtain flatness data to some extent, it has many disadvantages: the contact process of probe and front shell in conventional detection method is easy to scratch the surface of front shell, which undoubtedly increases the defective rate of product for flat-panel computer products with high appearance requirements; on the other hand, the detection efficiency is low, and it is difficult to meet the rapid detection demand of large-scale production line due to point-by-point measurement, and lacks effective marking. Based on this, the present application proposes a new optical full inspection flat-panel computer front shell flatness device, which combines advanced visual detection and efficient unqualified product marking technology, to solve the problems in the prior art and meet the urgent needs of flat-panel computer production industry for high-precision and high-efficiency detection and marking of front shell flatness. CONTENT OF UTILITY MODEL

[0007] In view of the shortcomings of the prior art, the utility model provides an optical full inspection flat-panel computer front shell flatness device, which solves the problem that the contact process of probe and front shell in conventional detection method is easy to scratch the surface of front shell, which undoubtedly increases the defective rate of product for flat-panel computer products with high appearance requirements.

[0008] To achieve the above purpose, the utility model realizes the following technical scheme:

[0009] An optical full inspection tablet front shell flatness device, including a fixed frame, the upper surface of the fixed frame is fixedly connected with a connecting frame for bearing, a camera for detection is arranged in the connecting frame, a support plate for connection is arranged on the left side of the connecting frame, an ink cartridge for storing ink is fixedly connected to the upper surface of the support plate, a connecting pipe for conveying ink is arranged below the support plate, two inkjet nozzles for ink jetting are fixedly connected to the annular side of the connecting pipe, a diaphragm pump is arranged on the left side of the support plate, and two brackets for connection are fixedly connected to the lower surface of the support plate, and the two brackets are fixedly connected with the connecting frame.

[0010] Preferably, two pairs of round rods are fixedly connected to the upper surface of the support plate, and the two pairs of round rods are fixedly connected with the ink cartridge, two support rods are fixedly connected to the lower surface of the support plate, and the two support rods are fixedly connected with the connecting pipe.

[0011] Preferably, a bearing plate for bearing is fixedly connected to the left surface of the support plate, the bearing plate is fixedly connected with the diaphragm pump, two ink conveying pipes are fixedly connected to the two output ends of the diaphragm pump respectively, and the two ink conveying pipes are fixedly connected with the connecting pipe and the ink cartridge respectively.

[0012] Compared with the prior art, the optical full inspection tablet front shell flatness device has the following beneficial effects:

[0013] 1, the fixed frame is integrally installed on the tablet computer front shell production line, the camera is started to detect the tablet computer front shell, the lens of the camera focuses the light on the surface of the front shell on the photosensitive element of the camera, forms a digital image signal, the digital image contains the shape, texture, color and other information of the front shell, the algorithm analyzes the image obtained by the camera, calculates the flatness deviation through the image recognition algorithm, and the visual detection of the camera is non-contact, which means that it will not scratch or damage the tablet computer front shell, especially suitable for materials with surface easy to be scratched, and the non-contact detection can be carried out more quickly, because the contact pressure between the probe and the front shell and other factors do not need to be considered, and the detection efficiency is improved.

[0014] 2, after judging that a certain tablet computer front shell has a problem by using the image recognition algorithm, a signal is sent to the control system, the control system sends a signal to the diaphragm pump, the diaphragm pump extrudes ink from the ink cartridge at a certain pressure through the ink conveying pipe, forms a continuous ink flow, and the ink flow is sprayed to the surface of the tablet computer front shell through the inkjet nozzle, and the surface of the tablet computer front shell is marked, so that the workers or subsequent automatic sorting equipment can quickly identify the problem products through the ink marking, without the need for careful inspection one by one, greatly improving the sorting speed, and effectively improving the overall product quality. BRIEF DESCRIPTION OF DRAWINGS

[0015] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and can be implemented according to the content of the specification, the following is the preferred embodiment of the present application and the detailed description of the drawings as follows.

[0016] Figure 1 It is the overall structural diagram of the present application;

[0017] Figure 2 It is the connection frame structure diagram of the present application;

[0018] Figure 3 It is the support plate structure diagram of the present application;

[0019] Figure 4 It is the connection pipe structure diagram of the present application.

[0020] Legend: 1, fixed frame; 2, connection frame; 3, camera; 4, ink cartridge; 5, support plate; 6, connecting pipe; 7, nozzle; 8, support; 9, support rod; 10, bearing plate; 11, diaphragm pump; 12, ink delivery pipe; 13, round rod. DETAILED DESCRIPTION

[0021] The embodiment of the present application provides an optical full inspection flat panel computer front shell flatness device, which effectively solves the problem that the contact process of the probe and the front shell of the conventional detection method is easy to scratch the surface of the front shell. For the flat panel computer product with extremely high appearance requirement, this undoubtedly increases the product failure rate. A new optical full inspection flat panel computer front shell flatness device is proposed, which combines advanced visual detection and efficient unqualified product marking technology, aims to solve the problems in the prior art, and meets the urgent needs of the flat panel computer production industry for high-precision and high-efficiency detection and marking of the front shell flatness.

[0022] EMBODIMENT

[0023] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the technical scheme in the embodiment of the present application effectively solves the problem that the contact process of the probe and the front shell of the conventional detection method is easy to scratch the surface of the front shell. For the flat panel computer product with extremely high appearance requirement, this undoubtedly increases the product failure rate. The overall idea is as follows:

[0024] In view of the problems in the prior art, the utility model provides a kind of optical full inspection flat panel computer front shell flatness device, including fixed frame 1, fixed frame 1 upper surface is fixedly connected with the connecting frame 2 for bearing, connecting frame 2 is provided with the camera 3 for detecting inside, connecting frame 2 left side is provided with the support plate 5 for connection, support plate 5 upper surface is fixedly connected with the ink cartridge 4 for storing ink, support plate 5 below is provided with the connecting pipe 6 for conveying ink, connecting pipe 6 annular side is fixedly connected with two for ink jet head 7, support plate 5 left side is provided with diaphragm pump 11, support plate 5 lower surface is fixedly connected with two for connection support 8, two support 8 are fixedly connected with connecting frame 2, the whole fixed frame 1 is installed on flat panel computer front shell production line, by starting camera 3 to flat panel computer front shell is detected, camera 3 lens focuses the light on the photosensitive element of camera on the surface of front shell, forms digital image signal, this digital image includes the shape, texture, color etc. of front shell, algorithm to analyze the image obtained by camera, calculate flatness deviation by image recognition algorithm, and the visual inspection of camera 3 is non-contact, which means that it will not scratch or damage the flat panel computer front shell, especially suitable for the material that surface is easily scratched, and, non-contact detection can be carried out more quickly, because it does not need to consider the contact pressure between probe and front shell and other factors, improve detection efficiency.

[0025] Support plate 5 upper surface is fixedly connected with two pairs of round rods 13, two pairs of round rods 13 are fixedly connected with ink cartridge 4, support plate 5 lower surface is fixedly connected with two support rods 9, two support rods 9 are fixedly connected with connecting pipe 6, support plate 5 left surface is fixedly connected with the bearing plate 10 for bearing, bearing plate 10 is fixedly connected with diaphragm pump 11, diaphragm pump 11 both sides output end is fixedly connected with two ink delivery tubes 12 respectively, two ink delivery tubes 12 are fixedly connected with connecting pipe 6 and ink cartridge 4 respectively, after judging that certain flat panel computer front shell has problem by image recognition algorithm, signal will be sent to control system, control system sends signal to diaphragm pump 11, diaphragm pump 11 extrudes ink from ink cartridge 4 with certain pressure through ink delivery tube 12, forms continuous ink flow, ink flow is sprayed to flat panel computer front shell surface through ink jet head 7, marks it, by ink jet marking, staff or subsequent automated sorting equipment can quickly identify problem product, without careful inspection one by one, greatly improve the speed of sorting, thereby effectively improve the quality of overall product.

[0026] Among them, fixed frame 1: as the basic support structure of the whole device, provide stable mounting platform for other components, guarantee the stability of optical full inspection flat panel computer front shell flatness device in the process of running;

[0027] Connecting frame 2: carries the camera 3, provides it with accurate mounting position, ensures that the camera 3 can obtain clear and accurate images of the front shell of the tablet computer for subsequent flatness detection analysis;

[0028] Camera 3: uses optical imaging principle to take pictures of the front shell of the tablet computer, focuses the light on the surface of the front shell to the photosensitive element to form a digital image signal containing shape, texture, color and other information, is the key component to realize non-contact flatness detection;

[0029] Ink cartridge 4: used for storing the ink required for inkjet marking, is the "warehouse" of ink supply, provides material basis for subsequent unqualified product marking work;

[0030] Support plate 5: connects and supports components such as ink cartridge 4, connecting pipe 6, diaphragm pump 11, is connected with connecting frame 2 through support 8, enhances the stability of the overall structure of the device, ensures that each component maintains a relatively stable positional relationship during work;

[0031] Connecting pipe 6: as a transmission channel for ink flowing from ink cartridge 4 to inkjet head 7, ensures that ink can be smoothly and stably supplied to inkjet head 7 for inkjet marking operation when needed;

[0032] Inkjet head 7: sprays the ink delivered from connecting pipe 6 in a specific pattern, marks the surface of the tablet computer front shell when the flatness is detected to be unqualified, making the unqualified product easy to identify;

[0033] Support 8: connects support plate 5 and connecting frame 2, plays a role in reinforcing their connection, improves the strength and stability of the overall structure of the device, prevents displacement or loosening of components due to factors such as vibration during work;

[0034] Supporting rod 9: used to fix connecting pipe 6 to keep it stable during ink delivery, avoiding the influence of shaking on normal ink delivery and inkjet effect;

[0035] Carrying plate 10: provides mounting support for diaphragm pump 11, ensures that diaphragm pump 11 can operate stably during work, and ensures that it can normally complete the functions of ink extraction and delivery;

[0036] Diaphragm pump 11: after receiving the signal from the control system, extracts ink from ink cartridge 4 through ink delivery pipe 12, and extrudes the ink at a certain pressure to form a continuous ink flow, providing power source for inkjet of inkjet head 7;

[0037] Ink delivery pipe 12: connects diaphragm pump 11, ink cartridge 4 and connecting pipe 6, realizes the circulation transmission of ink among the three, ensures the normal operation of the ink supply system;

[0038] Round rod 13: used for fixing ink box 4, enhancing the installation stability of ink box 4 on support plate 5, preventing ink box 4 from shaking or moving during the operation of the device, and ensuring the stability of ink supply.

[0039] Working principle:

[0040] The fixed frame 1 is installed on the front shell production line of the tablet computer as a whole, and the camera 3 is started to detect the front shell of the tablet computer. The lens of the camera 3 focuses the light on the surface of the front shell on the photosensitive element of the camera to form a digital image signal. This digital image contains information such as the shape, texture, color, etc. of the front shell. The algorithm analyzes the image obtained by the camera, calculates the flatness deviation through the image recognition algorithm, and the visual detection of the camera 3 is non-contact, which means that it will not scratch or damage the front shell of the tablet computer, especially for materials that are easy to scratch. Moreover, non-contact detection can be carried out more quickly because it does not need to consider factors such as contact pressure between the probe and the front shell, improving the detection efficiency. After judging that a certain front shell of the tablet computer has a problem through the image recognition algorithm, a signal is sent to the control system, and the control system sends a signal to the diaphragm pump 11. The diaphragm pump 11 extrudes ink from the ink box 4 at a certain pressure through the ink pipe 12 to form a continuous ink flow. The ink flow is sprayed to the surface of the front shell of the tablet computer through the nozzle 7 to mark it. Through inkjet marking, workers or subsequent automated sorting equipment can quickly identify problem products without the need for careful inspection one by one, greatly improving the speed of sorting and effectively improving the overall product quality.

[0041] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the utility model, and are not limited to the implementation mode. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. An optical full inspection flatness device for tablet computer front shell, comprising a fixing frame (1), characterized in that, The upper surface of the fixing frame (1) is fixedly connected with a connecting frame (2) for bearing, a camera (3) is arranged in the connecting frame (2), and a support plate (5) for connection is arranged on the left side of the connecting frame (2); Wherein, the upper surface of the support plate (5) is fixedly connected with an ink box (4) for storing ink, a connecting pipe (6) for conveying ink is arranged below the support plate (5), two inkjet nozzles (7) are fixedly connected to the annular side of the connecting pipe (6), and a diaphragm pump (11) is arranged on the left side of the support plate (5).

2. An optical flatness inspection tablet front case flatness device as claimed in claim 1, characterized in that: The lower surface of the support plate (5) is fixedly connected with two brackets (8) for connection; Wherein, two brackets (8) are fixedly connected with the connecting frame (2).

3. An optical flatness inspection tablet front case flatness device as claimed in claim 1, wherein: The upper surface of the support plate (5) is fixedly connected with two pairs of round rods (13); Wherein, two pairs of round rods (13) are fixedly connected with the ink box (4).

4. An optical flatness inspection tablet front case flatness device as claimed in claim 1, wherein: The lower surface of the support plate (5) is fixedly connected with two support rods (9); Wherein, two support rods (9) are fixedly connected with the connecting pipe (6).

5. An optical flatness inspection tablet front case flatness device as claimed in claim 1, wherein: The left surface of the support plate (5) is fixedly connected with a bearing plate (10) for bearing; Wherein, the bearing plate (10) is fixedly connected with the diaphragm pump (11).

6. An optical flatness inspection tablet front case flatness device as claimed in claim 1, wherein: Two ink conveying pipes (12) are fixedly connected to the two output ends of the diaphragm pump (11); Wherein, two ink conveying pipes (12) are fixedly connected with the connecting pipe (6) and the ink box (4) respectively.

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