A patch precision detection machine and its detection process

Abstract

The present invention discloses a patch precision detection machine and its detection process, comprising a loading platform, a loading arm, a lower detection mechanism, a transfer platform, an upper detection mechanism and a loading mechanism, wherein the loading platform, the lower detection mechanism and the transfer platform are arranged on the machine platform at intervals along a straight line; the upper detection mechanism is mounted above the transfer platform; the loading arm takes the material from the loading platform and then moves linearly from above the lower detection mechanism, the bottom of the material is detected by the lower detection mechanism, and the material is placed on the transfer platform, the transfer platform drives the material to move linearly under the upper detection mechanism, and the surface of the material is detected by the upper detection mechanism; the loading mechanism is arranged on the side of the upper detection mechanism, and the material after detection is unloaded by the loading mechanism. The present invention uses four circular detection surfaces that can be photographed by CCD lenses as four detection base points, and realizes the front-side bonding accuracy detection of the polarizer with the accuracy of the detection base points, and effectively covers the entire bonding surface, and integrates the detection functions of the upper and lower bonding surfaces.

Description

Technical Field

[0001] The present invention relates to the field of automation equipment, and in particular to a patch accuracy detection machine and a detection process thereof. Background Art

[0002] Glass substrates and polarizers are the most basic assembly materials used in the production and assembly of mobile phone screens, television screens, and other fields. Glass substrates serve as carriers, and polarizers are attached to the surface of the glass substrate to meet various optical requirements. Depending on the characteristics of the glass substrate, it is classified as either a flexible screen or a rigid screen. During the actual production and manufacturing of displays, polarizers need to be attached to the surface of the glass substrate. With the continuous advancement of display manufacturing technology, foreign display manufacturers have gradually introduced automated production lines into screen manufacturing. Domestic screen manufacturers have also increased their investment in recent years, continuously carrying out industrial transformation and upgrading, replacing traditional manual assembly lines with automated production lines.

[0003] After the polarizer is bonded, the polarizer bonding accuracy needs to be tested in order to screen out defective products caused by position or angle deviations during the bonding process, and then pass the bonded good products to the next workstation for subsequent processing. The following technical problems need to be solved during the bonding accuracy test: 1. The bonding surface detection generally uses a CCD lens to shoot the surface, and then the photographed test surface is passed to the industrial computer. The industrial computer analyzes the surface quality to distinguish between good and defective products. When testing the surface of a planar structure, the shooting surface of the CCD detection lens cannot completely cover the test screen surface; 2. The bonding process has the situation of upper or lower surface bonding, so the problem of upper or lower surface detection in the automated detection process is solved at the same time; 3. For the detection of polarizer bonding accuracy, since the bonding edge of the sheet-like structure polarizer is four sides, it is necessary to solve the problem of edge detection, and the accuracy of the bonding edge is judged by the accuracy of the bonding edge. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art and provide a polarizer bonding precision detection machine and its detection process, which uses a circular detection surface that can be photographed by four CCD lenses as four detection base points, and realizes the front-side bonding precision detection of the polarizer with the accuracy of the detection base points, effectively covers the entire bonding surface, and integrates the detection functions of the upper and lower bonding surfaces.

[0005] The technical solution adopted by the present invention is as follows: A patch accuracy detection machine includes a loading platform, a loading arm, a lower detection mechanism, a transfer platform, an upper detection mechanism and a loading mechanism, wherein the loading platform, the lower detection mechanism and the transfer platform are arranged on the machine platform at intervals in a straight line direction; the upper detection mechanism is erected above the transfer platform; the material to be inspected is loaded onto the loading platform, and the loading arm takes the material from the loading platform and moves straightly from above the lower detection mechanism, the bottom of the material is inspected by the lower detection mechanism, and the material is placed on the transfer platform, the transfer platform drives the material to move straightly under the upper detection mechanism, and the surface of the material is inspected by the upper detection mechanism; the loading mechanism is arranged on the side of the upper detection mechanism, and the inspected material is unloaded through the loading mechanism.

[0006] Preferably, the loading platform includes a first linear module, a second linear module and a support platform, wherein the first linear module is horizontally arranged on the machine platform; the second linear module is arranged in a direction perpendicular to the first linear module, and is connected to the output end of the first linear module, and the first linear module drives the second linear module to move linearly along its setting direction; the support platform includes at least two, the support platforms are arranged at intervals on the second linear module, and are connected to the output end of the second linear module, and the second linear module drives the support platform to move linearly along a direction perpendicular to the first linear module, and vacuum suction holes are arranged on the top of the support platform to adsorb and fix the material.

[0007] Preferably, the loading arm includes an arm linear module, an arm slide and a suction seat, wherein the arm linear module is mounted above the loading platform and extends in a straight line to the top of the lower detection mechanism; the arm slide is connected to the output end of the arm linear module and is driven by the arm linear module to move linearly; the suction seat includes at least two, the suction seat is connected to the output end of the arm linear module, and a vacuum suction hole is arranged on the bottom of the suction seat, so that after the material is adsorbed from the support platform, the sheet material is driven to move linearly above the lower detection mechanism.

[0008] Preferably, the lower detection mechanism includes a first detection component and a second detection component, and the first detection component and the second detection component are arranged at intervals along the linear movement direction of the material, forming four detection points in groups of two on the same horizontal plane, and a circular detection plane is formed at the detection points. When the loading arm drives the sheet material to move linearly from left to right above the detection mechanism, when the sheet material moves to the center of the two detection points of the first detection component, it includes a secondary detection position, wherein the first detection is when the right corner of the material moves to the center position of the circular detection plane of the first detection component, and the second detection is when the left corner of the material moves to the center position of the circular detection plane of the second detection component.

[0009] Preferably, the first detection component and the second detection component respectively include a lower detection linear module, a lower detection support, a lower detection CCD and a lower detection light source, wherein the above-mentioned lower detection linear module is horizontally arranged on the machine table, and the lower detection linear modules of the first detection component and the second detection component are arranged at intervals; the above-mentioned lower detection support is vertically connected to the output end of the lower detection linear module; the above-mentioned lower detection CCD is vertically arranged on the side wall of the lower detection support, and the lens is arranged upward; the above-mentioned lower detection light source is arranged at the top of the lower detection support, and a shooting through hole is opened in the middle of the lower detection light source, and the shooting through hole is correspondingly arranged at the upper part of the lower detection CCD.

[0010] Preferably, the transfer platform includes a transfer linear module, a transfer slide, a transfer lifting cylinder and a transfer seat, wherein the above-mentioned transfer linear module is horizontally arranged on the machine platform; the above-mentioned transfer slide is arranged on the output end of the transfer linear module, and is driven by the transfer linear module to move linearly; the above-mentioned transfer lifting cylinder is vertically arranged on the transfer slide, and the output end is arranged upward, and a horizontal support plate is connected to the output end of the transfer lifting cylinder; the above-mentioned transfer seat includes at least two, the transfer seat is horizontally arranged on the horizontal support plate, and the surface of the transfer seat is provided with vacuum suction holes to adsorb and fix the material.

[0011] Preferably, the upper detection mechanism includes a third detection component and a fourth detection component, and the third detection component and the fourth detection component are arranged at intervals along the linear movement direction of the material, forming four detection points in groups of two on the same horizontal plane, and a circular detection plane is formed at the detection points. When the transfer platform drives the sheet material to move linearly from left to right under the upper detection machine, it includes a secondary detection position, wherein the first detection is when the right corner of the material moves to the center position of the circular detection plane of the third detection component, and the second detection is when the left corner of the material moves to the center position of the circular detection plane of the fourth detection component.

[0012] Preferably, the third detection component and the fourth detection component respectively include a detection bracket, an upper detection linear module, an upper detection support, an upper detection CCD and an upper detection light source, wherein the above-mentioned detection bracket is a U-shaped frame structure, and the detection bracket is erected above the transfer platform; the above-mentioned upper detection linear module is arranged on the detection bracket, and the upper detection linear modules of the third detection component and the fourth detection component are arranged at intervals; the above-mentioned upper detection support is vertically connected to the output end of the upper detection linear module; the above-mentioned upper detection CCD is vertically arranged on the side wall of the upper detection support, and the lens is arranged downward; the above-mentioned upper detection light source is arranged at the lower part of the upper detection support, and a shooting through hole is opened in the middle of the upper detection light source, and the shooting through hole is correspondingly arranged at the lower part of the upper detection CCD.

[0013] Preferably, the unloading mechanism includes an unloading conveyor belt, an unloading arm and a defective product conveying roller, wherein the unloading conveyor belt is arranged on one side of the transfer platform, and extends horizontally to the outside of the machine, and docks with the subsequent work station; the defective product conveying roller is arranged on the side of the unloading conveyor belt, and extends horizontally in a direction perpendicular to the unloading conveyor belt; the unloading arm is mounted above the unloading conveyor belt and the defective product conveying roller, and the unloading arm takes out the inspected material from the transfer platform, moves the good material to the unloading conveyor belt, and moves the defective material to the defective product conveying roller.

[0014] Preferably, the unloading arm includes a horizontal drive component, a vertical drive component, a rotary drive component and a material picking component, wherein the horizontal drive component is mounted on the machine platform; the vertical drive component is connected to the horizontal drive component, and is driven by the horizontal drive component to move linearly along the X-axis and Y-axis directions in the horizontal plane; the rotary drive component is connected to the vertical drive component, and is driven by the vertical drive component to move linearly along the vertical direction; the material picking component is connected to the rotary drive component, and the rotary drive component drives the material picking component to rotate in the horizontal plane, and the material picking component absorbs the material through vacuum negative pressure.

[0015] Preferably, the horizontal drive assembly includes a transverse linear module, a longitudinal linear module and a blanking slide, wherein the transverse linear module is mounted on the machine table along the transverse direction, a blanking bracket is arranged at a parallel interval on one side of the transverse linear module, and a linear slide is arranged on the top of the blanking bracket; the longitudinal linear module is arranged on the transverse linear module and the blanking bracket along the longitudinal direction, and is driven by the transverse linear module to move linearly along the linear slide; the blanking slide is movably connected to the longitudinal linear module, and is driven by the longitudinal linear module to move linearly along the longitudinal direction; the vertical drive assembly includes a vertical cylinder and a vertical slide, wherein the vertical cylinder is connected to the outer side wall of the blanking slide, and the output end is arranged downward; the vertical The slide is slidably connected to the unloading slide in the vertical direction and is connected to the output end of the vertical cylinder; the above-mentioned rotation drive assembly includes a rotating motor, which is connected to the vertical slide and has an output end facing downward; the above-mentioned material picking assembly includes a material picking support and a material picking nozzle, wherein the above-mentioned material picking support is horizontally connected to the lower part of the output end of the rotating motor, and the rotating motor drives the material picking support to rotate in the horizontal plane to adjust the angle; a groove is provided on the material picking support, and the groove includes two grooves, which are respectively and parallelly spaced apart on the material picking support; the above-mentioned material picking nozzle includes at least two material picking nozzles, which are detachably installed in the grooves, and the installation position is adjusted through the grooves, and vertically extend to the bottom of the grooves, and absorb the material through the vacuum nozzle at the bottom.

[0016] A detection process of a patch accuracy detection machine includes the following process steps:

[0017] S1. Loading: The material to be tested is loaded onto the loading platform;

[0018] S2. Material movement: The material on the loading platform in step S1 is sucked and moved by the loading arm;

[0019] S3, material bottom surface detection: After the loading arm absorbs the material from the loading platform in step S2, it drives the material to move linearly above the lower detection mechanism, and the lower detection mechanism photographs and detects the bottom surface of the material;

[0020] S4. Material top surface inspection: After the bottom surface inspection in step S3 is completed, the material is placed on the transfer platform by the loading arm. The transfer platform drives the material to move linearly under the upper inspection mechanism, and the lower inspection mechanism takes pictures of the material top surface for inspection;

[0021] S5, unloading of defective products: After the defective products have been inspected in step S4, they are taken out from the transfer platform by the unloading arm and transferred to the defective product conveying roller, where they are unloaded;

[0022] S6, unloading of qualified products: After the qualified products have been inspected in step S4, they are taken out from the transfer platform by the unloading arm and transferred to the unloading conveyor belt for unloading.

[0023] The beneficial effects of the present invention are:

[0024] In response to the defects and shortcomings of the existing technology, the present invention independently developed and designed a polarizer bonding accuracy detection machine and its detection process, which uses a circular detection surface that can be photographed by four CCD lenses as four detection base points, and realizes the front-side bonding accuracy detection of the polarizer with the accuracy of the detection base points, effectively covering the entire bonding surface, and integrating the upper and lower bonding surface detection functions.

[0025] The present invention conducts research and innovation on the detection process after the polarizer is attached to the glass substrate. It uniquely adopts four detection CCDs to form an integrated detection execution component. The CCDs are arranged in groups of two, and are spaced apart on the left and right. The spacing between the two groups of CCDs is consistent with the width of the material to be inspected. At the same time, the spacing between the two groups of CCDs can be adjusted in real time to adapt to the precision detection of screen patches of different sizes. By laying out four CCDs on the same plane, the detection surface of a traditional single CCD is expanded to a rectangular detection plane with four CCDs as corners. At the same time, the circular detection surface formed by the single CCDs located at the corners solves the problem that the traditional CCD detection plane cannot cover the screen surface to be inspected during the actual inspection process. At the same time, the above-mentioned CCD corner layout structure effectively utilizes the situation that if precision errors occur during the polarizer bonding process, that is, position errors or angle errors occur, the polarizer and screen will be misaligned directly at the four corners of the rectangular screen. Therefore, the bonding accuracy of the entire polarizer can be inferred by simply detecting the bonding conditions of the four corners. Through this process innovation, there is no need for the detection plane to completely cover the surface to be inspected; it is suitable for the inspection process of all rectangular screens. The precision detection process of the present invention includes secondary detection as a whole. Taking the circular detection surface formed by four CCDs as a reference, the first detection is performed when the two right corners of the screen are respectively moved to the centers of the two CCD circular detection surfaces on the left; the second detection is performed when the two left corners of the screen are moved to the two CCD circular detection surfaces on the right; through the secondary detection, the surface of the four corner positions of the screen is completely detected.

[0026] In addition, the present invention also integrates the upper surface detection function and the lower surface detection function, and can adapt to the process requirements of different detection surfaces at the same time during the actual production process, and has good versatility.

[0027] In addition, the present invention is designed with a material unloading arm for automatically moving the screen after inspection to the defective product conveyor roller or unloading conveyor belt. The material unloading arm of the present invention includes a horizontal drive component, a vertical drive component and a rotary drive component. The horizontal drive component realizes linear drive in the horizontal and longitudinal directions in the horizontal plane; the vertical drive component realizes linear drive in the vertical direction; and the rotary drive component realizes rotary drive in the horizontal plane. Through the above drive components, the material unloading arm is integrated with four degrees of freedom adjustment. During the actual material unloading process, it can adapt to the automatic material unloading requirements of different positions and angles, so as to accurately match the position differences of materials between the upper and lower processes; at the same time, it has the function of real-time adjustment and correction of position and angle, so as to adapt to the position or angle deviation of materials during transportation and placement during the actual work process, and effectively ensure the accuracy of material unloading. In addition, the material unloading arm of the present invention absorbs materials through the vacuum negative pressure generated by the vacuum suction nozzle at the bottom of the vacuum suction nozzle. The vacuum suction nozzle is detachably installed in the strip groove. After disassembly, it can slide freely along the strip groove, thereby realizing position adjustment to adapt to the different requirements of the vacuum adsorption point position when unloading materials of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is one of the three-dimensional structural diagrams of the present invention.

[0029] Figure 2 This is the second schematic diagram of the three-dimensional structure of the present invention.

[0030] Figure 3 This is the third schematic diagram of the three-dimensional structure of the present invention.

[0031] Figure 4 This is the fourth schematic diagram of the three-dimensional structure of the present invention.

[0032] Figure 5 This is one of the structural diagrams of the present invention after the components are hidden.

[0033] Figure 6 This is the second structural diagram of the present invention after the components are hidden.

[0034] Figure 7 This is the third structural diagram of the present invention after the components are hidden.

[0035] Figure 8 This is the fourth structural diagram of the present invention after the components are hidden.

[0036] Figure 9 This is one of the three-dimensional structural schematic diagrams of the loading platform of the present invention.

[0037] Figure 10 This is the second schematic diagram of the three-dimensional structure of the loading platform of the present invention.

[0038] Figure 11This is the third schematic diagram of the three-dimensional structure of the loading platform of the present invention.

[0039] Figure 12 This is one of the three-dimensional structural schematic diagrams of the loading and lifting arm of the present invention.

[0040] Figure 13 This is the second schematic diagram of the three-dimensional structure of the loading and lifting arm of the present invention.

[0041] Figure 14 This is one of the three-dimensional structural schematic diagrams of the detection mechanism of the present invention.

[0042] Figure 15 This is the second schematic diagram of the three-dimensional structure of the detection mechanism of the present invention.

[0043] Figure 16 This is the third schematic diagram of the three-dimensional structure of the detection mechanism of the present invention.

[0044] Figure 17 This is one of the three-dimensional structural schematic diagrams of the transfer platform of the present invention.

[0045] Figure 18 This is the second schematic diagram of the three-dimensional structure of the transfer platform of the present invention.

[0046] Figure 19 This is one of the three-dimensional structural diagrams of the detection mechanism of the present invention.

[0047] Figure 20 This is the second schematic diagram of the three-dimensional structure of the detection mechanism of the present invention.

[0048] Figure 21 This is the third schematic diagram of the three-dimensional structure of the detection mechanism of the present invention.

[0049] Figure 22 It is a schematic diagram of the three-dimensional structure of the blanking conveyor belt of the present invention.

[0050] Figure 23 This is the third schematic diagram of the three-dimensional structure of the patch mechanism of the present invention.

[0051] Figure 24 This is one of the three-dimensional structural schematic diagrams of the blanking and lifting arm of the present invention.

[0052] Figure 25 This is the second schematic diagram of the three-dimensional structure of the blanking and lifting arm of the present invention. DETAILED DESCRIPTION

[0053] The present invention will be further described below with reference to the accompanying drawings:

[0054] like Figures 1 to 25As shown, the technical solution adopted by the present invention is as follows: a patch accuracy detection machine, comprising a loading platform 2, a loading arm 3, a lower detection mechanism 4, a transfer platform 5, an upper detection mechanism 6 and a loading mechanism, wherein the loading platform 2, the lower detection mechanism 4 and the transfer platform 5 are arranged on the machine 1 at intervals in a straight line direction; the upper detection mechanism 6 is mounted above the transfer platform 5; the material to be inspected is loaded via the loading platform 2, the loading arm 3 takes the material from the loading platform 2 and moves in a straight line from above the lower detection mechanism 4, the bottom of the material is inspected by the lower detection mechanism 4, and the material is placed on the transfer platform 5, the transfer platform 5 drives the material to move in a straight line under the upper detection mechanism 6, and the surface of the material is inspected by the upper detection mechanism 6; the loading mechanism is arranged on the side of the upper detection mechanism 6, and the inspected material is unloaded via the loading mechanism.

[0055] The loading platform 2 includes a first linear module 21, a second linear module 22 and a support 23, wherein the first linear module 21 is horizontally arranged on the machine 1; the second linear module 22 is arranged in a direction perpendicular to the first linear module 21, and is connected to the output end of the first linear module 21, and the first linear module 21 drives the second linear module 22 to move linearly along its setting direction; the support 23 includes at least two, the support 23 is arranged at intervals on the second linear module 22, and is connected to the output end of the second linear module 22, and the second linear module 22 drives the support 23 to move linearly in a direction perpendicular to the first linear module 21, and a vacuum suction hole is arranged on the top of the support 23 to adsorb and fix the material.

[0056] The loading arm 3 includes an arm linear module 31, an arm slide 32 and a suction seat 33, wherein the arm linear module 31 is mounted above the loading platform 2 and extends in a straight line to the top of the lower detection mechanism 4; the arm slide 32 is connected to the output end of the arm linear module 31 and is driven by the arm linear module 31 to move linearly; the suction seat 33 includes at least two, and the suction seat 33 is connected to the output end of the arm linear module 31. A vacuum suction hole is arranged at the bottom of the suction seat 33, so that after the material is adsorbed from the support 23, the sheet material is driven to move linearly above the lower detection mechanism 4.

[0057] The lower detection mechanism 4 includes a first detection component and a second detection component. The first detection component and the second detection component are arranged at intervals along the linear movement direction of the material, and four detection points are formed in groups of two on the same horizontal plane. A circular detection plane is formed at the detection points. When the loading arm 3 drives the sheet material to move linearly from left to right above the detection mechanism 4, when the sheet material moves to the center of the two detection points of the first detection component, it includes a secondary detection position, where the first detection is when the right corner of the material moves to the center position of the circular detection plane of the first detection component; the second detection is when the left corner of the material moves to the center position of the circular detection plane of the second detection component.

[0058] The first detection component and the second detection component respectively include a lower detection linear module 41, a lower detection support 42, a lower detection CCD43 and a lower detection light source 44, wherein the above-mentioned lower detection linear module 41 is horizontally arranged on the machine 1, and the lower detection linear modules 41 of the first detection component and the second detection component are arranged at intervals; the above-mentioned lower detection support 42 is vertically connected to the output end of the lower detection linear module; the above-mentioned lower detection CCD43 is vertically arranged on the side wall of the lower detection support 42, and the lens is arranged upward; the above-mentioned lower detection light source 44 is arranged on the top of the lower detection support 42, and a shooting hole is opened in the middle of the lower detection light source 44, and the shooting hole is correspondingly arranged at the upper part of the lower detection CCD.

[0059] The transfer platform 5 includes a transfer linear module 51, a transfer slide 52, a transfer lifting cylinder 53 and a transfer seat 54, wherein the above-mentioned transfer linear module 51 is horizontally arranged on the machine 1; the above-mentioned transfer slide 52 is arranged on the output end of the transfer linear module 51, and is driven by the transfer linear module 51 to move linearly; the above-mentioned transfer lifting cylinder 53 is vertically arranged on the transfer slide 52, and the output end is arranged upward, and the output end of the transfer lifting cylinder 53 is connected to a horizontal support plate; the above-mentioned transfer seat 54 includes at least two, the transfer seat 54 is horizontally arranged on the horizontal support plate, and the surface of the transfer seat 54 is provided with vacuum suction holes to adsorb and fix the material.

[0060] The upper detection mechanism 6 includes a third detection component and a fourth detection component. The third detection component and the fourth detection component are arranged at intervals along the linear movement direction of the material. Four detection points are formed in groups of two on the same horizontal plane, and a circular detection plane is formed at the detection points. When the transfer platform 5 drives the sheet material to move linearly from left to right under the upper detection mechanism 6, it includes a secondary detection position, wherein the first detection is when the right corner of the material moves to the center position of the circular detection plane of the third detection component, and the second detection is when the left corner of the material moves to the center position of the circular detection plane of the fourth detection component.

[0061] The third detection component and the fourth detection component respectively include a detection bracket, an upper detection linear module 61, an upper detection support 62, an upper detection CCD63 and an upper detection light source 64, wherein the above-mentioned detection bracket is a U-shaped frame structure, and the detection bracket is erected above the transfer platform; the above-mentioned upper detection linear module 61 is arranged on the detection bracket, and the upper detection linear modules 61 of the third detection component and the fourth detection component are arranged at intervals; the above-mentioned upper detection support 62 is vertically connected to the output end of the upper detection linear module; the above-mentioned upper detection CCD63 is vertically arranged on the side wall of the upper detection support 62, and the lens is arranged downward; the above-mentioned upper detection light source 64 is arranged at the lower part of the upper detection support 62, and a shooting hole is opened in the middle of the upper detection light source 64, and the shooting hole is correspondingly arranged at the lower part of the upper detection CCD.

[0062] The unloading mechanism includes an unloading conveyor belt 7, an unloading arm 8 and a defective product conveying roller 9, wherein the unloading conveyor belt 7 is arranged on one side of the transfer platform 5, and extends horizontally to the outside of the machine 1, and docks with the subsequent workstation; the defective product conveying roller 9 is arranged on the side of the unloading conveyor belt 7, and extends horizontally in a direction perpendicular to the unloading conveyor belt 7; the unloading arm 8 is mounted above the unloading conveyor belt 7 and the defective product conveying roller 9, and the unloading arm 8 takes the inspected material from the transfer platform 5, moves the good material to the unloading conveyor belt 7, and moves the defective material to the defective product conveying roller 9.

[0063] The unloading arm 8 includes a horizontal drive component, a vertical drive component, a rotary drive component and a picking component, wherein the horizontal drive component is mounted on the machine 1; the vertical drive component is connected to the horizontal drive component, and is driven by the horizontal drive component to move linearly along the X-axis and Y-axis directions in the horizontal plane; the rotary drive component is connected to the vertical drive component, and is driven by the vertical drive component to move linearly along the vertical direction; the picking component is connected to the rotary drive component, and the rotary drive component drives the picking component to rotate in the horizontal plane, and the picking component absorbs the material through vacuum negative pressure.

[0064] The horizontal drive assembly includes a transverse linear module 81, a longitudinal linear module 82 and a blanking slide 83, wherein the transverse linear module 81 is mounted on the machine 1 in the transverse direction, and a blanking bracket is provided at a parallel interval on one side of the transverse linear module 81, and a linear slide is provided on the top of the blanking bracket; the longitudinal linear module 82 is arranged on the transverse linear module 81 and the blanking bracket in the longitudinal direction, and is driven by the transverse linear module 81 to move linearly along the linear slide; the blanking slide 83 is movably connected to the longitudinal linear module 82, and is driven by the longitudinal linear module 82 to move linearly in the longitudinal direction; the vertical drive assembly includes a vertical cylinder 84 and a vertical slide 85, wherein the vertical cylinder 84 is connected to the outer side wall of the blanking slide 83, and the output end is arranged downward; the vertical slide 85 It is slidably connected to the unloading slide 83 in the vertical direction and is connected to the output end of the vertical cylinder 84; the above-mentioned rotation drive assembly includes a rotary motor 86, which is connected to the vertical slide 85, and the output end is set downward; the above-mentioned material picking assembly includes a material picking support 87 and a material picking suction nozzle 88, wherein the above-mentioned material picking support 87 is horizontally connected to the lower part of the output end of the rotary motor 86, and the rotary motor 86 drives the material picking support 87 to rotate in the horizontal plane to adjust the angle; a groove is provided on the material picking support 87, and the groove includes two grooves, which are respectively and parallelly spaced on the material picking support 87; the above-mentioned material picking suction nozzle 88 includes at least two, and the material picking suction nozzle 88 is detachably installed in the groove, and the installation position is adjusted through the groove, and vertically extends to the bottom of the groove, and absorbs the material through the vacuum suction nozzle at the bottom.

[0065] A detection process of a patch accuracy detection machine includes the following process steps:

[0066] S1. Loading: The material to be tested is loaded onto the loading platform;

[0067] S2. Material movement: The material on the loading platform in step S1 is sucked and moved by the loading arm;

[0068] S3, material bottom surface detection: After the loading arm absorbs the material from the loading platform in step S2, it drives the material to move linearly above the lower detection mechanism, and the lower detection mechanism photographs and detects the bottom surface of the material;

[0069] S4. Material top surface inspection: After the bottom surface inspection in step S3 is completed, the material is placed on the transfer platform by the loading arm. The transfer platform drives the material to move linearly under the upper inspection mechanism, and the lower inspection mechanism takes pictures of the material top surface for inspection;

[0070] S5, unloading of defective products: After the defective products have been inspected in step S4, they are taken out from the transfer platform by the unloading arm and transferred to the defective product conveying roller, where they are unloaded;

[0071] S6, unloading of qualified products: After the qualified products have been inspected in step S4, they are taken out from the transfer platform by the unloading arm and transferred to the unloading conveyor belt for unloading.

[0072] like Figures 19 to 21 As shown in the figure, it is a schematic diagram of the upper detection mechanism of the present invention. The above drawing shows that the upper detection light source 64 in the upper detection mechanism 6 of the present invention is a rectangular structure. After the upper detection light source 64 of the rectangular structure emits light downward to the position to be detected, the upper detection CCD63 takes a real-time photo of the detection position and transmits it to the industrial computer for analysis and processing to determine the surface state.

[0073] As an alternative implementation scheme, the above-mentioned upper detection light source 64 can also adopt a circular structure. Its function is the same as that of the above-mentioned upper detection light source 64 with a rectangular structure. It is also used to provide light enhancement during CCD detection. The difference is that there are differences in the light irradiation area or intensity; it can also meet the function of auxiliary lighting for CCD detection.

[0074] Furthermore, the present invention designs a patch accuracy detection machine and its detection process, which uses four circular detection surfaces that can be photographed by CCD lenses as four detection base points, and realizes the front-side bonding accuracy detection of the polarizer with the accuracy of the detection base points, effectively covers the entire bonding surface, and integrates the detection functions of the upper and lower bonding surfaces.

[0075] The present invention conducts research and innovation on the detection process after the polarizer is attached to the glass substrate. It uniquely adopts four detection CCDs to form an integrated detection execution component. The CCDs are arranged in groups of two, and are spaced apart on the left and right. The spacing between the two groups of CCDs is consistent with the width of the material to be inspected. At the same time, the spacing between the two groups of CCDs can be adjusted in real time to adapt to the precision detection of screen patches of different sizes. By laying out four CCDs on the same plane, the detection surface of a traditional single CCD is expanded to a rectangular detection plane with four CCDs as corners. At the same time, the circular detection surface formed by the single CCDs located at the corners solves the problem that the traditional CCD detection plane cannot cover the screen surface to be inspected during the actual inspection process. At the same time, the above-mentioned CCD corner layout structure effectively utilizes the situation that if precision errors occur during the polarizer bonding process, that is, position errors or angle errors occur, the polarizer and screen will be misaligned directly at the four corners of the rectangular screen. Therefore, the bonding accuracy of the entire polarizer can be inferred by simply detecting the bonding conditions of the four corners. Through this process innovation, there is no need for the detection plane to completely cover the surface to be inspected; it is suitable for the inspection process of all rectangular screens. The precision detection process of the present invention includes secondary detection as a whole. Taking the circular detection surface formed by four CCDs as a reference, the first detection is performed when the two right corners of the screen are respectively moved to the centers of the two CCD circular detection surfaces on the left; the second detection is performed when the two left corners of the screen are moved to the two CCD circular detection surfaces on the right; through the secondary detection, the surface of the four corner positions of the screen is completely detected.

[0076] In addition, the present invention also integrates the upper surface detection function and the lower surface detection function, and can adapt to the process requirements of different detection surfaces at the same time during the actual production process, and has good versatility.

[0077] In addition, the present invention is designed with a material unloading arm for automatically moving the screen after inspection to the defective product conveyor roller or unloading conveyor belt. The material unloading arm of the present invention includes a horizontal drive component, a vertical drive component and a rotary drive component. The horizontal drive component realizes linear drive in the horizontal and longitudinal directions in the horizontal plane; the vertical drive component realizes linear drive in the vertical direction; and the rotary drive component realizes rotary drive in the horizontal plane. Through the above drive components, the material unloading arm is integrated with four degrees of freedom adjustment. During the actual material unloading process, it can adapt to the automatic material unloading requirements of different positions and angles, so as to accurately match the position differences of materials between the upper and lower processes; at the same time, it has the function of real-time adjustment and correction of position and angle, so as to adapt to the position or angle deviation of materials during transportation and placement during the actual work process, and effectively ensure the accuracy of material unloading. In addition, the material unloading arm of the present invention absorbs materials through the vacuum negative pressure generated by the vacuum suction nozzle at the bottom of the vacuum suction nozzle. The vacuum suction nozzle is detachably installed in the strip groove. After disassembly, it can slide freely along the strip groove, thereby realizing position adjustment to adapt to the different requirements of the vacuum adsorption point position when unloading materials of different sizes.

[0078] The embodiments of the present invention are merely to introduce specific implementation methods and are not intended to limit the scope of protection. Persons skilled in the art may make certain modifications inspired by these embodiments. Therefore, any equivalent changes or modifications made in accordance with the scope of the present invention are within the scope of the patent claims of the present invention.

Claims

1. A patch accuracy detection machine, characterized by: The machine comprises a loading platform (2), a loading arm (3), a lower detection mechanism (4), a transfer platform (5), an upper detection mechanism (6) and a loading mechanism, wherein the loading platform (2), the lower detection mechanism (4) and the transfer platform (5) are arranged on the machine (1) at intervals along a straight line; the upper detection mechanism (6) is mounted above the transfer platform (5); the material to be detected is loaded onto the loading platform (2), the loading arm (3) takes the material from the loading platform (2) and then moves linearly from above the lower detection mechanism (4), the bottom of the material is detected by the lower detection mechanism (4), and the material is placed on the transfer platform (5), the transfer platform (5) drives the material to move linearly under the upper detection mechanism (6), and the surface of the material is detected by the upper detection mechanism (6); the loading mechanism is arranged on the side of the upper detection mechanism (6), and the material after detection is unloaded through the loading mechanism; The lower detection mechanism (4) includes a first detection component and a second detection component. The first detection component and the second detection component are arranged at intervals along the linear movement direction of the material. Four detection points are formed in groups of two on the same horizontal plane. A circular detection plane is formed at the detection points. When the loading arm (3) drives the sheet material to move linearly from left to right above the lower detection mechanism (4), it includes a secondary detection position, wherein the first detection is when the right corner of the material moves to the center position of the circular detection plane of the first detection component, and the second detection is when the left corner of the material moves to the center position of the circular detection plane of the second detection component; The first detection component and the second detection component respectively include a lower detection linear module (41), a lower detection support (42), a lower detection CCD (43) and a lower detection light source (44), wherein the lower detection linear module (41) is horizontally arranged on the machine (1), and the lower detection linear modules (41) of the first detection component and the second detection component are arranged at intervals; the lower detection support (42) is vertically connected to the output end of the lower detection linear module; the lower detection CCD (43) is vertically arranged on the side wall of the lower detection support (42), and the lens is arranged upward; the lower detection light source (44) is arranged on the top of the lower detection support (42), and a shooting hole is opened in the middle of the lower detection light source (44), and the shooting hole is correspondingly arranged on the upper part of the lower detection CCD; The upper detection mechanism (6) includes a third detection component and a fourth detection component. The third detection component and the fourth detection component are arranged at intervals along the linear movement direction of the material. Four detection points are formed in groups of two on the same horizontal plane. A circular detection plane is formed at the detection points. When the transfer platform (5) drives the sheet material to move linearly from left to right below the upper detection mechanism (6), it includes a secondary detection position, wherein the first detection is when the right corner of the material moves to the center position of the circular detection plane of the third detection component, and the second detection is when the left corner of the material moves to the center position of the circular detection plane of the fourth detection component; The third detection component and the fourth detection component respectively include a detection bracket, an upper detection linear module (61), an upper detection support (62), an upper detection CCD (63) and an upper detection light source (64), wherein the detection bracket is a U-shaped frame structure, and the detection bracket is mounted above the transfer platform; the upper detection linear module (61) is arranged on the detection bracket, and the upper detection linear modules (61) of the third detection component and the fourth detection component are arranged at intervals; the upper detection support (62) is vertically connected to the output end of the upper detection linear module; the upper detection CCD (63) is vertically arranged on the side wall of the upper detection support (62), and the lens is arranged downward; the upper detection light source (64) is arranged at the lower part of the upper detection support (62), and a shooting hole is opened in the middle of the upper detection light source (64), and the shooting hole is correspondingly arranged at the lower part of the upper detection CCD.

2. A patch accuracy detection machine according to claim 1, characterized in that: The loading platform (2) includes a first linear module (21), a second linear module (22) and a support (23), wherein the first linear module (21) is horizontally arranged on the machine (1); the second linear module (22) is arranged in a direction perpendicular to the first linear module (21) and is connected to the output end of the first linear module (21), and the first linear module (21) drives the second linear module (22) to move linearly along its setting direction; the support (23) includes at least two, the support (23) is arranged at intervals on the second linear module (22) and is connected to the output end of the second linear module (22), and the second linear module (22) drives the support (23) to move linearly along a direction perpendicular to the first linear module (21), and a vacuum suction hole is arranged on the top of the support (23) to absorb and fix the material.

3. A patch accuracy detection machine according to claim 2, characterized in that: The loading arm (3) includes an arm linear module (31), an arm slide (32) and a suction seat (33), wherein the arm linear module (31) is mounted above the loading platform (2) and extends in a straight line to the top of the lower detection mechanism (4); the arm slide (32) is connected to the output end of the arm linear module (31) and is driven by the arm linear module (31) to move linearly; the suction seat (33) includes at least two, the suction seat (33) is connected to the output end of the arm linear module (31), and a vacuum suction hole is arranged at the bottom of the suction seat (33) so that after the material is adsorbed from the support (23), the sheet material is driven to move linearly above the lower detection mechanism (4).

4. A patch accuracy detection machine according to claim 3, characterized in that: The transfer platform (5) includes a transfer linear module (51), a transfer slide (52), a transfer lifting cylinder (53) and a transfer seat (54), wherein the transfer linear module (51) is horizontally arranged on the machine (1); the transfer slide (52) is arranged on the output end of the transfer linear module (51) and is driven by the transfer linear module (51) to move linearly; the transfer lifting cylinder (53) is vertically arranged on the transfer slide (52), and the output end is arranged upward, and the output end of the transfer lifting cylinder (53) is connected to a horizontal support plate; the transfer seat (54) includes at least two, the transfer seat (54) is horizontally arranged on the horizontal support plate, and the surface of the transfer seat (54) is provided with vacuum suction holes to absorb and fix materials.

5. A patch accuracy detection machine according to claim 4, characterized in that: The unloading mechanism includes an unloading conveyor belt (7), an unloading arm (8) and a defective product conveying roller (9), wherein the unloading conveyor belt (7) is arranged on one side of the transfer platform (5) and horizontally extends to the outside of the machine (1) to connect with the subsequent workstation; the defective product conveying roller (9) is arranged on the side of the unloading conveyor belt (7) and horizontally extends in a direction perpendicular to the unloading conveyor belt (7); the unloading arm (8) is mounted above the unloading conveyor belt (7) and the defective product conveying roller (9), and the unloading arm (8) takes out the inspected material from the transfer platform (5), moves the good material to the unloading conveyor belt (7), and moves the defective material to the defective product conveying roller (9).

6. A patch accuracy detection machine according to claim 5, characterized in that: The unloading arm (8) includes a horizontal drive component, a vertical drive component, a rotary drive component and a material picking component, wherein the horizontal drive component is mounted on the machine (1); the vertical drive component is connected to the horizontal drive component and is driven by the horizontal drive component to move linearly along the X-axis direction and the Y-axis direction in the horizontal plane; the rotary drive component is connected to the vertical drive component and is driven by the vertical drive component to move linearly along the vertical direction; the material picking component is connected to the rotary drive component, and the rotary drive component drives the material picking component to rotate in the horizontal plane, and the material picking component absorbs the material through vacuum negative pressure.

7. A patch accuracy detection machine according to claim 6, characterized in that: The horizontal drive assembly includes a transverse linear module (81), a longitudinal linear module (82) and a blanking slide (83), wherein the transverse linear module (81) is mounted on the machine (1) in the transverse direction, and a blanking bracket is provided at a parallel interval on one side of the transverse linear module (81), and a linear slide is provided on the top of the blanking bracket; the longitudinal linear module (82) is arranged on the transverse linear module (81) and the blanking bracket in the longitudinal direction, and is driven by the transverse linear module (81) to move linearly along the linear slide; the blanking slide (83) is movably connected to the longitudinal linear module (82), and is driven by the longitudinal linear module (82) to move linearly in the longitudinal direction; the vertical drive assembly includes a vertical cylinder (84) and a vertical slide (85), wherein the vertical cylinder (84) is connected to the outer wall of the blanking slide (83), and the output end is arranged downward; the vertical slide (85) is slidably connected to the unloading slide (83) in the vertical direction and is connected to the output end of the vertical cylinder (84); the above-mentioned rotation drive component includes a rotary motor (86), which is connected to the vertical slide (85) and has its output end facing downward; the above-mentioned material picking component includes a material picking support (87) and a material picking suction nozzle (88), wherein the above-mentioned material picking support (87) is horizontally connected to the lower part of the output end of the rotary motor (86), and the rotary motor (86) drives the material picking support (87) to rotate in the horizontal plane to adjust the angle; a strip groove is provided on the material picking support (87), and the strip groove includes two strip grooves, which are respectively arranged on the material picking support (87) in parallel and spaced apart; the above-mentioned material picking suction nozzle (88) includes at least two, and the material picking suction nozzle (88) is detachably installed in the strip groove, and the installation position is adjusted through the strip groove, and vertically extends to the bottom of the strip groove, and absorbs the material through the vacuum suction nozzle at the bottom.

8. A detection process for a patch accuracy detection machine according to any one of claims 1 to 7, characterized in that: The process steps include: S1. Loading: The material to be tested is loaded onto the loading platform; S2. Material movement: The material on the loading platform in step S1 is sucked and moved by the loading arm; S3, material bottom surface detection: After the loading arm absorbs the material from the loading platform in step S2, it drives the material to move linearly above the lower detection mechanism, and the lower detection mechanism photographs and detects the bottom surface of the material; S4. Material top surface inspection: After the bottom surface inspection in step S3 is completed, the material is placed on the transfer platform by the loading arm. The transfer platform drives the material to move linearly under the upper inspection mechanism, and the lower inspection mechanism takes pictures of the material top surface for inspection; S5, unloading of defective products: After the defective products have been inspected in step S4, they are taken out from the transfer platform by the unloading arm and transferred to the defective product conveying roller, where they are unloaded; S6, unloading of qualified products: After the qualified products have been inspected in step S4, they are taken out from the transfer platform by the unloading arm and transferred to the unloading conveyor belt for unloading.

Images