An integrated detection method based on 3C product integrated detection system

Abstract

The present invention provides an integrated detection method based on a 3C product integrated detection system, which belongs to the field of composite measurement. The integrated detection system includes a silo module, a transport module, and an integrated detection station. The transport module transports and flips 3C products between the silo module and the integrated detection station. The silo module provides empty trays, loading trays, and unloading trays for receiving classified 3C products. The integrated detection system also includes a product identification module for identifying each 3C product to facilitate subsequent unloading by category. The material extraction / loading positions of this system achieve spatial isolation, enabling non-stop loading and unloading. Empty trays automatically circulate, reducing the work of manually loading empty trays. Trays are recycled while taking into account empty tray storage. The integrated detection system accurately aligns multiple surfaces of components such as centering frames to achieve a multi-station integrated design with high precision and small space occupation, improving efficiency and reducing costs. This facilitates promotion and application in fields such as 3C center frames that require large-scale, multi-faceted detection.

Description

Technical Field

[0001] The present invention belongs to the field of composite measurement, and in particular relates to an integrated detection method based on a 3C product integrated detection system. Background Art

[0002] With the development of technology, the manufacturing precision requirements for 3C products (computers, communications and consumer electronics) are getting higher and higher. This is not only reflected in the conventional industrial camera visual measurement, but also requires accurate detection in other complex environments and 3D measurement. Undoubtedly, the traditional detection method that relies solely on industrial cameras can no longer meet this requirement. In addition, for the mid-frame detection of mobile phones, pads, etc., such as Figure 1 This involves comprehensive inspection of multiple surfaces, including the TP side, BP side, and eight inner side surfaces (TP / BP side includes all inner facades). This also requires the design of a specially designed integrated inspection station that can meet the needs of large-scale, high-precision, and high-efficiency inspection. At the same time, higher requirements are also placed on loading and unloading, minimizing manual intervention and ensuring the recycling of material trays to improve overall machine efficiency. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide an integrated detection method based on a 3C product integrated detection system, which can solve the above problems.

[0004] A 3C product integrated inspection system includes a silo module, a transport module, and an integrated inspection station arranged on a rack; the transport module transports and flips 3C products between the silo module and the integrated inspection station; the silo module provides empty trays, loading trays, and unloading trays for receiving classified 3C products; the integrated inspection system also includes a product recognition module for identifying each 3C product to facilitate subsequent unloading by category.

[0005] Furthermore, the silo module includes an empty tray buffer bin, an upper silo and multiple lower silos; the empty tray buffer bin is used to receive empty trays after the upper silo has been loaded with materials and provide empty trays to the multiple lower silos.

[0006] Furthermore, the silo module also includes a tray dividing module, which is arranged above the empty tray buffer bin, the upper silo and the multiple lower silos, and is used to transport the empty trays that have been taken out of the upper silo to the empty tray buffer bin and to transport the empty trays in the empty tray buffer bin to the lower silo that is short of materials.

[0007] Furthermore, the handling module includes a loading and handling module, a first measuring and carrying module with a rotating platform, and a classification and unloading conveying module; the loading and handling module is arranged above the loading bin and the first measuring and carrying module, and is used for loading and handling the products to be tested; the conveying end of the first measuring and carrying module is placed below the integrated testing station; the classification and unloading conveying module is arranged downstream of the integrated testing station, and is used to classify and transport the tested products to multiple unloading bins.

[0008] Furthermore, the transport module also includes a material unloading cache module, which is arranged upstream of the classification unloading and conveying module and is used for temporary storage of products after inspection.

[0009] Furthermore, the handling module also includes a second measuring carrier module and a material unloading transfer handling module. The second measuring carrier module has the same structure as the first measuring carrier module and is arranged side by side with it. The material unloading transfer handling module is arranged side by side on the outside of the second measuring carrier module; the material unloading cache module is arranged between the material unloading transfer handling module and the classification material unloading conveying module, and is used to pick up and temporarily store the inspected products conveyed from the second measuring carrier module.

[0010] Furthermore, a loading buffer module is arranged side by side upstream of the first measurement and transport module for receiving the products to be tested from the loading bin and transferring them to the first measurement and transport module through the loading and handling module as needed.

[0011] Furthermore, the integrated inspection station includes a BP measurement module and a TP measurement module installed on the inspection frame. The BP measurement module and the TP measurement module have the same structure and both include a vertical laser, a first oblique scanning laser, a second oblique scanning laser, a first camera lens assembly and a second camera lens assembly; wherein, the scanning directions of the vertical laser and the first camera lens assembly are set perpendicular to the surface of the product to be tested, and the emission directions of the first oblique scanning laser and the second oblique scanning laser are arranged opposite to each other at a set of diagonals toward the product to be tested, and the second camera lens assembly and the first camera lens assembly are arranged along the transmission streamline direction of the product to be tested.

[0012] The present invention also provides an integrated detection method based on the aforementioned 3C product integrated detection system, the method comprising the following steps (the steps are in no particular order, and are a cyclic process of cyclic loading, temporary storage, first-side detection, second-side detection, unloading, temporary storage, and classified unloading).

[0013] S1. Place the full material tray into the upper hopper, and lift the tray at the upper hopper to the material removal position.

[0014] S2. The loading and handling module takes the material from the material tray and puts it into the loading buffer module.

[0015] S3, the tray separation module transports the empty tray to the empty tray buffer warehouse and transports the tray to the unloading warehouse for the missing tray.

[0016] S4. The products to be tested in the loading buffer module are taken out and transferred to the first measurement and carrying module.

[0017] S5. The first measurement and transport module transports the positioned product to be tested to the integrated testing station for optical scanning and measurement according to the first set process, completes product identification and measurement of the first surface, and transmits the measurement result of the first surface to the detection processor.

[0018] S6. The transfer handling and turning module takes out the product whose first side has been measured from the first measurement and carrying module, turns it over, and places it in the second measurement and carrying module.

[0019] S7. The second measurement and carrying module transports the product whose first side has been measured and positioned to the integrated inspection station for optical scanning and measurement according to the second set process, completes the product identification and measurement of the second side, and transmits the second side measurement result to the inspection processor.

[0020] S8. The transfer and handling flip module takes out the product that has been inspected on both sides from the second measurement and carrying module and places it into the unloading transfer and handling module.

[0021] S9, the unloading transfer module transports the inspected products to the unloading buffer module.

[0022] S10, the classified unloading and conveying module takes materials from the unloading buffer module and distributes them to the corresponding material trays of the unloading silo.

[0023] S11. After the material tray of the unloading bin is full of material, the full material tray is unloaded.

[0024] Compared with the existing technology, the beneficial effects of the present invention are: the material taking position / loading position of the system is spatially isolated, which enables loading and unloading without stopping the machine and improves equipment efficiency; the empty material trays circulate automatically, reducing the work of manually loading empty material trays; the material trays are recycled, while taking into account the storage of empty material trays for cyclic measurement; through the integrated detection system, multiple surfaces of components such as the centering frame are accurately aligned to realize a multi-station integrated design with high precision and small space occupation, involving multiple platforms and standard modules, which improves efficiency and reduces costs, and is convenient for promotion and application in fields such as 3C center frames that require large-scale multi-faceted detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the surface to be measured for the 3C product to be tested;

[0026] Figure 2 Schematic top view of the integrated detection system of the present invention;

[0027] Figure 3It is a schematic diagram of the local structure of the integrated detection system;

[0028] Figure 4 Schematic diagram of the integrated detection method.

[0029] In the figure,

[0030] 1. Empty disk cache;

[0031] 2. Loading silo;

[0032] 3. Loading and handling module;

[0033] 4. First measurement and transport module;

[0034] 5. Transfer handling and flipping module;

[0035] 6. Second measurement and transport module;

[0036] 7. Integrated inspection station; 70. Inspection frame; 71. Vertical laser; 72. First oblique scanning laser; 73. Second oblique scanning laser; 74. First camera lens assembly; 75. Second camera lens assembly;

[0037] 8. Unloading transfer and handling module;

[0038] 9. Cutting cache module;

[0039] 10. Classification unloading and conveying module;

[0040] 11. Tray separation module;

[0041] 12. Unloading silo;

[0042] 13. Loading cache module;

[0043] 14. Product identification module. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0045] Integrated detection system

[0046] A 3C product integrated detection system, see Figure 1-Figure 3The integrated detection system includes a silo module, a handling module and an integrated detection station 7 arranged on the frame. Through efficient cyclic loading and unloading, it is used for comprehensive quantity detection of the TP top surface, BP bottom surface, TP side and 8 inner facades included in the BP side of the center frame.

[0047] The handling module transports and flips the 3C products between the silo module and the integrated inspection station 7. The silo module provides empty trays, loading trays and unloading trays for receiving classified 3C products. The integrated inspection system also includes a product identification module 14, which is used to identify each 3C product to facilitate subsequent unloading by category.

[0048] Among them, the silo module includes an empty tray cache silo 1, an upper silo 2 and multiple lower silos 12; the empty tray cache silo 1 is used to receive empty trays after the upper silo 2 has loaded the materials and provide empty trays to the multiple lower silos 12.

[0049] Among them, the upper bin 2 adopts a lifting and flipping bin as described in patent CN117902271A. The upper bin 2 can lift the material tray to the material removal position through a lifting drive module, that is, a material tray lifting mechanism.

[0050] The empty tray buffer 1, loading bin 2, and multiple unloading bins 12 are located on the same side, facilitating easy access for staff. The trays within the bins are recycled, reducing the workload for staff who unload trays. Each bin can also be equipped with a tray counting mechanism, using methods such as weight counting, thickness detection, and photoelectric detection, to precisely control the timing of loading and unloading trays.

[0051] The plurality of unloading bins 12 include an OK bin and a plurality of NG bins.

[0052] In this specific example, the multiple NG bins include NG1, NG2, and NG3, with loading bin 2, empty tray buffer bin 1, NG1, NG2, and NG3 arranged side by side in that order. Of course, more NG bins and other arrangements may also be used. The number of NG bins depends on the selected inspection indicators or parameters.

[0053] Furthermore, the silo module also includes a tray separation module 11, which is arranged above the empty tray cache silo 1, the upper silo 2 and the multiple lower silos 12, and is used to transport the empty trays that have been taken out of the upper silo 2 to the empty tray cache silo 1 and to transport the empty trays in the empty tray cache silo 1 to the lower silo 12 that is short of materials.

[0054] In this specific example, the empty tray buffer 1 can buffer multiple layers of empty trays, preferably three. Advantages: It increases the number of tray buffers, allowing for additional empty trays to be stored separately from the loading trays. This allows for continuous loading and unloading, improving equipment efficiency.

[0055] Among them, the handling module includes a loading and handling module 3, a first measuring and carrying module 4 with a rotating platform, and a classification and unloading conveying module 10; the loading and handling module 3 is arranged above the loading bin 2 and the first measuring and carrying module 4, and is used for loading and handling the products to be tested; the conveying end of the first measuring and carrying module 4 is placed below the integrated testing station 7; the classification and unloading conveying module 10 is arranged downstream of the integrated testing station 7, and is used to classify and transport the tested products to multiple unloading bins 12.

[0056] The sorting and unloading module 10 includes an OK unloading mechanism and an NG unloading mechanism. The NG unloading mechanism transfers unqualified products that have been identified as unqualified after inspection to the corresponding NG1 or NG2 bins, with the NG3 bin serving as a backup. The OK unloading mechanism transfers qualified OK products to the OK bin.

[0057] The pickup heads of the loading and handling module 3, the transfer and flipping module 5, the unloading and transfer handling module 8, and the classified unloading and conveying module 10 have similar structures. The transport drive mechanism uses a translation unit and a lifting unit. The lifting unit is mounted on the translation unit, and multiple pickup heads are installed at the end of the lifting unit. In the preferred embodiment, four pickup heads with adjustable pickup spacing are provided. Each pickup head can include one or more suction nozzles.

[0058] The loading and handling module 3 and the classification and unloading conveying module 10 use suction cups to absorb products, and the distance between the picking heads can be changed so as to have a suitable spacing with the material tray or carrier to be received.

[0059] Furthermore, the transport module also includes a material unloading buffer module 9, which is arranged upstream of the classification unloading and conveying module 10 and is used for temporary storage of products after inspection.

[0060] Furthermore, the handling module also includes a second measuring carrier module 6 and a material unloading transfer handling module 8. The second measuring carrier module 6 has the same structure as the first measuring carrier module 4 and is arranged side by side with it. The material unloading transfer handling module 8 is arranged side by side on the outside of the second measuring carrier module 6; the material unloading cache module 9 is arranged between the material unloading transfer handling module 8 and the classification material unloading conveying module 10, and is used to pick up and temporarily store the inspected products conveyed from the second measuring carrier module 6.

[0061] Furthermore, a loading buffer module 13 is provided upstream of the first measurement and transport module 4 , for receiving the products to be tested from the loading bin 2 and transferring them to the first measurement and transport module 4 through the loading and handling module 3 as needed.

[0062] Furthermore, the integrated inspection station 7 includes a BP measurement module and a TP measurement module installed on the inspection frame 70. The BP measurement module and the TP measurement module have the same structure and both include a vertical laser 71, a first oblique scanning laser 72, a second oblique scanning laser 73, a first camera lens assembly 74 and a second camera lens assembly 75; wherein, the scanning directions of the vertical laser 71 and the first camera lens assembly 74 are set perpendicular to the surface of the product to be tested, and the emission directions of the first oblique scanning laser 72 and the second oblique scanning laser 73 are arranged opposite to each other at a set of diagonals toward the product to be tested, and the second camera lens assembly 75 and the first camera lens assembly 74 are arranged along the transmission streamline direction of the product to be tested.

[0063] The detection frame 70 is installed on the frame of the integrated detection system in a gantry manner.

[0064] The BP measurement module and the TP measurement module correspond to the first measurement carrier module 4 and the second measurement carrier module 6 below respectively, and the upper and lower surfaces of the products to be measured transported on the second measurement carrier module 6 and the first measurement carrier module 4 face opposite directions.

[0065] The product identification module 14 is used to identify each 3C product so that it can be subsequently unloaded by category. Of course, it can also realize product information identification and traceability. A paper QR code or a laser code on the product can be set for identification. QR codes, bar codes, etc. can also be printed or laser-formed on site. This mechanism can be arranged on the integrated monitoring station 7 or upstream. Specifically, the product identification module 14 adopts the form of a barcode scanner, etc., or a combination of a code printer and a barcode scanner. If the product to be tested already has an identification code such as a QR code, bar code, radio frequency unit, etc., it is only necessary to set a barcode scanner such as a barcode scanner, and enter the detected information into the product information library through the rear processor. After identification during unloading, the tested products are unloaded into different silos according to category.

[0066] Integrated detection methods

[0067] An integrated detection method based on the aforementioned 3C product integrated detection system, see Figure 4 The method includes the following steps (the steps are in no particular order, and are a cyclic process of cyclic loading, temporary storage, first-side detection, second-side detection, unloading, temporary storage, and classified unloading).

[0068] S1. Place the full tray into the upper bin 2, and lift the tray at the upper bin 2 to the material removal position.

[0069] S2, the loading and handling module 3 takes materials from the material tray and puts them into the loading buffer module 13.

[0070] In a specific example, 4 pieces are taken each time, that is, the picking heads of the loading and handling module 3 are arranged in four rows and rows with adjustable intervals, so as to take 4 pieces of products to be tested each time.

[0071] S3, the tray sorting module 11 transports the empty tray to the empty tray buffer bin 1, and transports the tray to the tray-deficient unloading bin 12.

[0072] S4 , the products to be tested in the loading buffer module 13 are taken out and transferred to the first measurement and carrying module 4 .

[0073] S5. The first measurement and carrying module 4 transports the positioned product to be tested to the integrated testing station 7 according to the first set process for optical scanning and measurement, completes product identification and measurement of the first surface, and transmits the measurement result of the first surface to the detection processor.

[0074] S6 , the transfer and turning module 5 takes out the product whose first side has been measured from the first measurement and carrying module 4 , turns it over, and places it in the second measurement and carrying module 6 .

[0075] S7. The second measurement and carrying module 6 transports the product with the first side measured and positioned according to the second set process to the integrated detection station 7 for optical scanning and measurement, completes the product identification and measurement of the second side, and transmits the second side measurement result to the detection processor.

[0076] S8 , the transfer and handling flip module 5 takes out the product whose both sides have been inspected from the second measurement and carrying module 6 and places it into the unloading transfer and handling module 8 .

[0077] S9, the unloading transfer module 8 transports the inspected products to the unloading buffer module 9.

[0078] S10 , the classified unloading and conveying module 10 takes materials from the unloading buffer module 9 and distributes them to the corresponding material trays of the unloading bin 12 .

[0079] S11, after the material tray of the unloading bin 12 is full of material, the full material tray is unloaded.

[0080] Figure 4 The BP measurement is the first-side measurement or detection, and the TP measurement is the second-side measurement or detection. Of course, it can also be the measurement or detection of other parts.

[0081] The above process is a relatively comprehensive double-sided inspection. Of course, single-sided or partial inspection can also be performed according to actual needs.

[0082] In specific applications for 3C products (mobile phones, tablets, laptops, etc.), this solution uses a camera lens assembly with a telecentric lens, surface light, and fixture backlight to establish a 2D coordinate system for 2D dimension measurement. An oblique laser scan measures features such as the groove elevation, mating bevels, and corner mating bevels on the midframe, establishing a 3D XY coordinate system for measuring internal length and width, mating bevel profile, corner mating bevel profile, and straightness. A vertical laser scans features such as the small A / C surface, corner small A / C, groove bottom, adhesive surface, battery compartment, LCD compartment, and CAM hole, establishing a 3D Z coordinate system for measuring small A / C flatness, corner A / C height difference, small A / C height difference, adhesive surface profile, battery compartment flatness, LCD compartment flatness, and CAM hole height difference. This fully enables multi-sided inspection of the midframe.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An integrated detection method based on a 3C product integrated detection system, the 3C product integrated detection system comprising a silo module, a transport module and an integrated detection station (7) arranged on a rack; characterized in that: The transport module transports and flips the 3C products between the silo module and the integrated inspection station (7), and the silo module provides an empty tray, a loading tray, and a discharge tray for receiving the classified 3C products; the integrated inspection system also includes a product identification module (14) for identifying each 3C product so as to facilitate subsequent unloading by category; the silo module includes an empty tray buffer (1), a loading silo (2), a tray sorting module (11), and a plurality of unloading silos (12); the transport module includes a loading and transporting module (3), a first measuring and carrying module (4) with a rotating platform, a transfer and handling flip module (5), a second measuring and carrying module (6), an unloading transfer and transport module (8), an unloading cache module (9), and a classified unloading conveying module (10); a loading cache module (13) is arranged side by side upstream of the first measuring and carrying module (4); the integrated inspection method includes: S1, place the full material tray into the upper material bin (2), and lift the material tray at the upper material bin (2) to the material removal position; S2, the loading and handling module (3) takes the material from the material tray and puts it into the loading buffer module (13); S3, the tray separation module (11) transports the empty tray to the empty tray buffer (1), and transports the tray to the unloading bin (12) for the trays lacking the material; S4, the product to be tested in the loading buffer module (13) is taken out and transferred to the first measurement carrying module (4); S5, the first measurement and transport module (4) transports the positioned product to be tested to the integrated testing station (7) according to the first set process for optical scanning and measurement, completes product identification and measurement of the first surface, and transmits the measurement result of the first surface to the detection processor; S6, the transfer handling and turning module (5) takes out the product whose first side has been measured from the first measuring and carrying module (4), turns it over, and places it in the second measuring and carrying module (6); S7, the second measurement and transport module (6) transports the product whose first side has been measured and positioned according to the second set process to the integrated detection station (7) for optical scanning and measurement, completes product identification and measurement of the second side, and transmits the measurement result of the second side to the detection processor; S8, the transfer and handling flip module (5) takes out the product that has been inspected on both sides from the second measurement and carrying module (6) and puts it into the unloading transfer and handling module (8); S9, the unloading transfer module (8) transports the inspected products to the unloading buffer module (9); S10, the classified unloading and conveying module (10) takes materials from the unloading buffer module (9) and distributes them to the corresponding material trays of the unloading bin (12); S11, after the material tray of the unloading bin (12) is full of material, the full material tray is unloaded.

2. The integrated detection method based on the 3C product integrated detection system according to claim 1, characterized in that: The empty tray buffer bin (1) is used to receive empty trays after the upper bin (2) has been loaded with materials and to provide the empty trays to the plurality of lower bins (12).

3. The integrated detection method based on the 3C product integrated detection system according to claim 2, characterized in that: The plurality of unloading bins (12) include an OK bin and a plurality of NG bins.

4. The integrated detection method based on the 3C product integrated detection system according to claim 2 or 3, characterized in that: The tray separation module (11) is arranged above the empty tray buffer (1), the upper material bin (2) and the plurality of lower material bins (12), and is used to transport the empty trays that have been taken out of the upper material bin (2) to the empty tray buffer (1) and to transport the empty trays in the empty tray buffer (1) to the lower material bin (12) that are out of material.

5. The integrated detection method based on the 3C product integrated detection system according to claim 2, characterized in that: The loading and transporting module (3) is arranged above the loading bin (2) and the first measuring and carrying module (4) and is used for loading and transporting the products to be tested; the conveying end of the first measuring and carrying module (4) is placed below the integrated testing station (7); the classification unloading and transporting module (10) is arranged downstream of the integrated testing station (7) and is used for classifying and transporting the tested products to the plurality of unloading bins (12).

6. The integrated detection method based on the 3C product integrated detection system according to claim 5, characterized in that: The material unloading buffer module (9) is arranged upstream of the classification unloading conveying module (10) and is used for temporarily storing products after inspection.

7. The integrated detection method based on the 3C product integrated detection system according to claim 6, characterized in that: The second measuring and carrying module (6) has the same structure as the first measuring and carrying module (4) and is arranged side by side with the first measuring and carrying module (4). The unloading and transfer module (8) is arranged side by side on the outside of the second measuring and carrying module (6); the unloading and buffer module (9) is arranged between the unloading and transfer module (8) and the classification unloading and conveying module (10) and is used to pick up and temporarily store the inspected products conveyed from the second measuring and carrying module (6).

8. The integrated detection method based on the 3C product integrated detection system according to claim 7, characterized in that: The loading buffer module (13) is used to receive the product to be tested from the loading bin (2) and transfer it to the first measurement carrying module (4) through the loading and transporting module (3) as needed.

9. The integrated detection method based on the 3C product integrated detection system according to claim 1, characterized in that: The integrated inspection station (7) includes a BP measurement module and a TP measurement module installed on a detection frame (70), and the BP measurement module and the TP measurement module have the same structure, and both include a vertical laser (71), a first oblique scanning laser (72), a second oblique scanning laser (73), a first camera lens assembly (74) and a second camera lens assembly (75); wherein the scanning directions of the vertical laser (71) and the first camera lens assembly (74) are arranged perpendicular to the surface of the product to be tested, the emission directions of the first oblique scanning laser (72) and the second oblique scanning laser (73) are arranged opposite to each other at a set of diagonals toward the product to be tested, and the second camera lens assembly (75) and the first camera lens assembly (74) are arranged along the transmission streamline direction of the product to be tested.

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