Mobile phone middle frame appearance defect intelligent detection device

Abstract

The utility model relates to appearance defect detection of a mobile phone middle frame, and provides an intelligent detection device for appearance defects of a mobile phone middle frame, which aims to solve the problems of high manual dependence, huge labor cost, frequent error detection and missing detection, low efficiency and overlong assembly line in the existing appearance defect detection of the mobile phone middle frame. A linear transplanting module is arranged at the rear end of the feeding platform and transfers products on the feeding platform to a 3D / BG face detection module, the 3D / BG face detection module and a BR / CR face detection module are arranged side by side in the left-right direction at intervals, a CG long edge detection module is arranged at the interval position between the 3D / BG face detection module and the BR / CR face detection module, and a CG short edge detection module is arranged on the other side of the BR / CR face detection module. The CG short edge detection device has the advantages of being small in manual dependence, low in labor cost, low in error detection and omission ratio, high in efficiency and short in assembly line.

Description

Technical Field

[0001] The utility model relates to appearance defect detection of a mobile phone middle frame, in particular to an intelligent appearance defect detection device for a mobile phone middle frame. Background Art

[0002] The current mobile phone mid-frame appearance inspection,

[0003] 1. Operators use magnifying glasses to conduct manual visual inspections. Handheld magnifying glasses pose a safety hazard of secondary damage to the inspected object. A testing line requires many operators, resulting in huge labor costs.

[0004] Second, the operator sits in front of the display screen, and the product passes under the camera, and the image is displayed on the display screen. Looking at the display screen for a long time can easily cause visual fatigue. When the product passes under the camera, the operator cannot adjust the angle manually, and wrong inspections and missed inspections occur frequently. If suspicious products are found, the machine needs to be stopped for inspection, which affects efficiency. The overall settlement is not as good as full manual inspection;

[0005] 3. Mechanical testing equipment has the problem of multi-part assembly lines being too long, and small-scale enterprises cannot install them normally in their factories.

[0006] In summary, the existing mobile phone mid-frame appearance defect detection has the problems of high reliance on manual labor, huge labor costs, frequent false detections, missed detections, low efficiency and too long assembly lines. Utility Model Content

[0007] The technical problem to be solved by the utility model is: in order to solve the problems of high manual dependence, huge labor cost, frequent misdetection, missed detection, low efficiency and too long assembly line in the existing mobile phone middle frame appearance defect detection, a mobile phone middle frame appearance defect intelligent detection device is provided.

[0008] The technical solution adopted by the utility model to solve the technical problem is: an intelligent detection device for appearance defects of a mobile phone middle frame, including a feeding platform, a linear transplanting module, a 3D / BG surface detection module, a CG long edge detection module, a BR / CR surface detection module, a CG short edge detection module and a product classification unloading module;

[0009] A linear transfer module is arranged at the rear end of the loading platform, and the linear transfer module transfers the products on the loading platform to the 3D / BG surface detection module. The 3D / BG surface detection module and the BR / CR surface detection module are arranged side by side at intervals on the left and right. A CG long edge detection module is arranged at the interval between the 3D / BG surface detection module and the BR / CR surface detection module, and a CG short edge detection module is arranged on the other side of the BR / CR surface detection module. A product unloading module is arranged on the side or rear end of the CG short edge detection module.

[0010] In order to solve the problem that dirt attached to the product affects the detection results, the loading platform includes a loading conveyor line and ion dust removal components arranged on both sides of the loading conveyor line.

[0011] In order to solve the problem of unsatisfactory dirt removal effect, the ion dust removal component comprises two left and right ion dust removal air outlets which blow obliquely toward the upper material conveying line.

[0012] In order to solve the problem of too long assembly line, the 3D / BG surface detection module includes two first flow channels for alternately feeding materials, and a 3D / BG surface detection camera mechanism is arranged in the middle or on the side of the two first flow channels;

[0013] Of the two first flow channels for alternately feeding materials, a visual guidance mechanism is installed on the side of the first flow channel for preferential feeding.

[0014] In order to solve the problem of frequent false detection and missed detection, the 3D / BG surface detection camera mechanism includes two line light sources in a cross-lighting state, a 3D surface camera and a BG surface camera, one of the line light sources is installed above the frame, and the other line light source is installed on the side of the frame;

[0015] The 3D surface camera is set horizontally or sideways in the frame, and the lens of the 3D surface camera is aimed at the intersection of the cross lighting of two light sources;

[0016] The BG surface camera is installed above the frame, and the lens of the BG surface camera is aimed at the intersection of the cross lighting of two light sources.

[0017] In order to solve the problem of low accuracy, visual guidance mechanisms are installed on the sides of the two first flow channels for alternate feeding.

[0018] In order to solve the problem of too long production line, the BR / CR surface detection module includes two second flow channels for alternately loading materials, and a BR / CR surface detection camera mechanism is arranged in the middle or on the side of the two second flow channels.

[0019] In order to solve the problem of low accuracy, the BR / CR surface detection camera mechanism includes a BR surface camera, a C-type light source and a CR surface camera. The C-type light source is installed in the middle position of the bracket, the BR surface camera is installed above the bracket, and the CR surface camera is installed below the bracket. The lenses of the BR surface camera and the CR surface camera are aligned with the arc of the C-type light source.

[0020] In order to solve the problem of low efficiency, the product-based unloading module includes a unloading gantry, and an OK unloading channel and an NG unloading channel are arranged in parallel below the unloading gantry.

[0021] In order to solve the problems of wrong detection and missed detection, a suspicious product flow channel is further provided in the middle or on the side of the OK material discharge flow channel and the NG material discharge flow channel.

[0022] The beneficial effects of the utility model are as follows: the intelligent detection device for the appearance defects of the mobile phone middle frame of the utility model completely replaces manual labor with a machine, which greatly reduces the dependence on manual labor and reduces the labor cost. The machine replacing manual labor greatly reduces the misdetection and missed detection caused by fatigue of manual labor after long-term work. The machine replacing manual labor greatly improves the detection efficiency, and at the same time optimizes the existing multi-part assembly line with too long length, shortens the length of the device itself, optimizes the detection process, shortens the detection time, and improves the detection efficiency in disguise.

[0023] In summary, the utility model has the characteristics of low manual dependence, low labor cost, low false detection and missed detection rate, high efficiency and short assembly line. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a structural schematic diagram of the utility model.

[0026] Figure 2 It is a structural schematic diagram of the 3D / BG surface detection camera mechanism of the utility model.

[0027] Figure 3 It is a structural schematic diagram of the BR / CR surface detection camera mechanism of the utility model.

[0028] Figure 4 It is a flow chart of product alternating feeding inspection.

[0029] In the figure: 1. Loading platform, 2. Linear transfer module, 3. 3D / BG surface detection module, 4. CG long edge detection module, 5. BR / CR surface detection module, 6. CG short edge detection module, 7. Product separation and unloading module, 8. Linear motor transfer mechanism, 9. Product;

[0030] 11. Feeding conveyor line, 12. Ion dust removal component;

[0031] 31. First flow channel, 32. 3D / BG surface detection camera mechanism, 33. Visual guidance mechanism;

[0032] 321. Line light source, 322. 3D surface camera, 323. BG surface camera, 324. Rack;

[0033] 51. Second flow channel, 52. BR / CR surface detection camera mechanism;

[0034] 521.BR surface camera, 522.C type light source, 523.CR surface camera, 524.bracket;

[0035] 71. Material discharge gantry, 72. OK material discharge flow channel, 73. NG material discharge flow channel, 74. Suspicious product flow channel; DETAILED DESCRIPTION

[0036] Now the utility model is further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0037] like Figures 1 to 4 The device for intelligently detecting appearance defects of a mobile phone middle frame shown in the figure comprises a feeding platform 1, a linear transplanting module 2, a 3D / BG surface detection module 3, a CG long edge detection module 4, a BR / CR surface detection module 5, a CG short edge detection module 6 and a product classification and unloading module 7. The modules are described in sequence according to the process:

[0038] Loading platform 1:

[0039] It includes a feeding conveyor line 11, on which a jig or carrier is placed. The front end of the feeding conveyor line 11 is manually or mechanically placed on the jig, and the feeding conveyor line 11 drives the jig to move backward. The product 9 is a mobile phone middle frame. In order to solve the problem that the dirt attached to the product 9 affects the detection result, ion dust removal components 12 are installed on both sides of the feeding conveyor line 11. In order to solve the problem that the dirt removal effect is not ideal, the ion dust removal component 12 includes left and right ion dust removal air ports that are tilted to blow toward the feeding conveyor line 11. The angle of the ion dust removal air port can be adjusted. The product 9 after dust removal by the ion dust removal component 12 is transferred to the 3D / BG surface detection module 3 through the linear transfer module 2 installed at the side rear or rear end of the feeding conveyor line 11.

[0040] Straight line transplanting module 2:

[0041] That is, a linear transplanting manipulator or other grasping device is used for the transfer of product 9.

[0042] 3D / BG surface detection module 3:

[0043] In order to solve the problem of too long production line, the 3D / BG surface detection module 3 includes two first flow channels 31 for alternately loading materials in sequence, and a 3D / BG surface detection camera mechanism 32 is installed in the middle or side of the two first flow channels 31. In order to solve the problem of frequent misdetection and missed detection, the 3D / BG surface detection camera mechanism 32 includes two line light sources 321 in a cross-lighting state, a 3D surface camera 322 and a BG surface camera 323. One of the line light sources 321 is installed above the frame 324, and the other line light source 323 is installed above the frame 324. 21 is installed on the side of the rack 324, the 3D surface camera 322 is installed horizontally or sideways in the rack 324, the lens of the 3D surface camera 322 is aimed at the intersection of the cross-lighting of the two light sources 321, and the BG surface camera 323 is installed above the rack 324, and the lens of the BG surface camera 323 is aimed at the intersection of the cross-lighting of the two light sources 321. This design can ensure sufficient lighting while simplifying the structure, so as to ensure that the images collected by the 3D surface camera 322 and the BG surface camera 323 are clear and complete, and reduce the false detection and missed detection rates;

[0044] In order to ensure the uniformity of the feeding posture of each product 9, so as to ensure the uniformity and accuracy of the detection results, in the two first flow channels 31 for alternate feeding, the side of the first flow channel 31 for preferential feeding is equipped with a visual guide mechanism 32. If the manufacturing cost is not considered or the effect is to be further improved, the side of the two first flow channels 31 for alternate feeding is equipped with a visual guide mechanism 32;

[0045] The visual guidance mechanism 32 includes an XYθ motion platform and a visual guidance component. The XYθ motion platform has an X-axis, a Y-axis and a DD motor. After the product 9 is positioned in the fixture, the X-axis, the Y-axis and the rotating DD motor drive the fixture to the detection position to perform trajectory motion to complete the positioning.

[0046] The 3D / BG surface inspection module 3 takes two products 9 at a time, namely product A and product B, through a linear transfer module, a linear transfer robot or other grasping equipment. When product A is loaded, product B is being inspected. After the inspection of product A, product B is moved to the next workstation via the intermediate transfer mover. The beats are staggered, and only one product 9 is transferred at a time. After the photo inspection is completed, the XYθ motion platform in the visual guidance mechanism 32 will adjust the product 9 back to the unloading position, waiting to be transferred to the CG long edge inspection module 4.

[0047] CG long edge detection module 4:

[0048] Installed between the 3D / BG surface detection module 3 and the BR / CR surface detection module 5, the CG long edge detection module 4 includes a linear motor transfer mechanism 8 and a CG long edge detection camera mechanism. The linear motor transfer mechanism 8 transfers the products 9 inspected by the 3D / BG surface detection module 3 one by one to the workstation where the CG long edge detection camera mechanism is located for inspection, and moves the inspected products 9 to the BR / CR surface detection module 5.

[0049] BR / CR surface detection module 5:

[0050] The 3D / BG surface detection module 3 and the BR / CR surface detection module 5 are installed side by side at intervals. The layout of the 3D / BG surface detection module 3 and the BR / CR surface detection module 5 are similar. In order to solve the problem of the assembly line being too long, the BR / CR surface detection module 5 includes two second flow channels 51 for alternating feeding. A BR / CR surface detection camera mechanism 52 is installed in the middle or on the side of the two second flow channels 51. In order to solve the problem of low accuracy, the BR / CR surface detection camera mechanism 52 includes a BR surface camera 521, a C-type light source 522 and a CR surface camera 523. The C-type light source 522 is installed in the middle position of the bracket 524, the BR surface camera 521 is installed above the bracket 524, and the CR surface camera 523 is installed below the bracket 524. The lenses of the BR surface camera 521 and the CR surface camera 523 are aligned with the arc of the C-type light source 522.

[0051] CG short edge detection module 6:

[0052] The CG short side detection module 6 is installed on the side of the second flow channel 51 of the BR / CR surface detection module 5, that is, the rear end of the BR / CR surface detection module 5. After the product 9 is detected by the BR / CR surface detection module 5, it is transferred to the CG short side detection module 6 for detection by the linear motor transfer mechanism 8. After the product 9 is detected, it can be temporarily stored on the platform to wait for the product separation and unloading module 7 to separate and unload, or it can be directly separated and unloaded by the product separation and unloading module 7;

[0053] In order to simplify the equipment structure, the linear motor transplanting mechanism 8 is as follows Figure 1 During installation, the linear motor transplanting mechanism 8 spans across four detection modules, namely, the 3D / BG surface detection module 3, the CG long edge detection module 4, the BR / CR surface detection module 5 and the CG short edge detection module 6.

[0054] Product unloading module 7:

[0055] In order to solve the problem of low efficiency, the product sorting and unloading module 7 includes a unloading gantry 71 and a cantilever sorting mechanism. An OK unloading channel 72 and an NG unloading channel 73 are installed in parallel below the unloading gantry 71. In order to solve the problems of misdetection and missed detection, a suspicious product channel 74 is also provided in the middle or on the side of the OK unloading channel 72 and the NG unloading channel 73. According to the different detection results, the cantilever sorting mechanism or other types of manipulators put the product 9 into the corresponding unloading channel, and finally they are uniformly transported manually or mechanically.

[0056] In order to shorten the length of the whole machine and the inspection process, the two first flow channels 31 are installed parallel to each other, and the first flow channels 31 and the 3D / BG surface detection camera mechanism 32 are in a vertical state, that is, the 3D / BG surface detection camera mechanism 32 is installed at the rear side of the two first flow channels 31, and the front side of the two first flow channels 31 is the loading platform 1; similarly, the two second flow channels 51 are installed parallel to each other, and the second flow channels 51 and the BR / CR surface detection camera mechanism 52 are in a vertical state, that is, the BR / CR surface detection camera mechanism 52 is installed at the rear side of the two second flow channels 51, and the front side of the two second flow channels 51 is the CG long edge detection module 4.

[0057] The above description only describes the specific implementation methods of the utility model. Various examples do not limit the essential content of the utility model. Ordinary technicians in the relevant technical field can modify or deform the specific implementation methods described above after reading the description without departing from the essence and scope of the utility model.

Claims

1. An intelligent detection device for appearance defects of a mobile phone middle frame, characterized in that: Including loading platform, linear transfer module, 3D / BG surface detection module, CG long edge detection module, BR / CR surface detection module, CG short edge detection module and product classification unloading module; A linear transfer module is arranged at the rear end of the loading platform, and the linear transfer module transfers the products on the loading platform to the 3D / BG surface detection module. The 3D / BG surface detection module and the BR / CR surface detection module are arranged side by side at intervals on the left and right. A CG long edge detection module is arranged at the interval between the 3D / BG surface detection module and the BR / CR surface detection module, and a CG short edge detection module is arranged on the other side of the BR / CR surface detection module. A product unloading module is arranged on the side or rear end of the CG short edge detection module.

2. The intelligent detection device for appearance defects of a mobile phone middle frame according to claim 1, characterized in that: The feeding platform comprises a feeding conveying line and ion dust removal components arranged on both sides of the feeding conveying line.

3. The intelligent detection device for appearance defects of a mobile phone middle frame according to claim 2, characterized in that: The ion dust removal component comprises two left and right ion dust removal air blowing ports which blow obliquely toward the upper material conveying line.

4. The intelligent detection device for appearance defects of a mobile phone middle frame according to claim 1, characterized in that: The 3D / BG surface detection module comprises two first flow channels for alternately feeding materials, and a 3D / BG surface detection camera mechanism is arranged in the middle or on the side of the two first flow channels; Of the two first flow channels for alternately feeding materials, a visual guidance mechanism is installed on the side of the first flow channel for preferential feeding.

5. The intelligent detection device for appearance defects of a mobile phone middle frame according to claim 4, characterized in that: The 3D / BG surface detection camera mechanism includes two line light sources in a cross-lighting state, a 3D surface camera and a BG surface camera, one of the line light sources is installed above the frame, and the other line light source is installed on the side of the frame; The 3D surface camera is set horizontally or sideways in the frame, and the lens of the 3D surface camera is aimed at the intersection of the cross lighting of two light sources; The BG surface camera is installed above the frame, and the lens of the BG surface camera is aimed at the intersection of the cross lighting of two light sources.

6. The intelligent detection device for appearance defects of a mobile phone middle frame according to claim 4, characterized in that: The side surfaces of the two first flow channels for alternately feeding materials are both installed with visual guidance mechanisms.

7. The intelligent detection device for appearance defects of a mobile phone middle frame according to claim 1, characterized in that: The BR / CR surface detection module comprises two second flow channels for alternately feeding materials, and a BR / CR surface detection camera mechanism is arranged in the middle or on the side of the two second flow channels.

8. The intelligent detection device for appearance defects of a mobile phone middle frame according to claim 7, characterized in that: The BR / CR surface detection camera mechanism comprises a BR surface camera, a C-type light source and a CR surface camera, wherein the C-type light source is installed in the middle position of a bracket, the BR surface camera is installed above the bracket, and the CR surface camera is installed below the bracket, and the lenses of the BR surface camera and the CR surface camera are aligned with the arc of the C-type light source.

9. The intelligent detection device for appearance defects of a mobile phone middle frame according to claim 1, characterized in that: The material discharging module comprises a material discharging gantry, and an OK material discharging flow channel and an NG material discharging flow channel are arranged in parallel below the material discharging gantry.

10. The intelligent detection device for appearance defects of a mobile phone middle frame according to claim 9, characterized in that: A doubtful product flow channel is also provided in the middle or on the side of the OK material discharge flow channel and the NG material discharge flow channel.

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