3C product integrated detection system and integrated detection method

Abstract

The invention provides a 3C product integrated detection system and an integrated detection method, and belongs to the field of composite measurement. The integrated detection system comprises a stock bin module, a carrying module and an integrated detection station; the carrying module carries and turns over the 3C products between the stock bin module and the integrated detection station, and the stock bin module provides an empty tray, a feeding tray and a discharging tray for receiving the classified 3C products. The integrated detection system further comprises a product identification module which is used for identifying each 3C product so as to facilitate subsequent blanking according to categories. The material taking position / material feeding position of the system is spatially isolated, and non-stop feeding and discharging are achieved; the empty trays automatically flow, so that the work of manually emptying the empty trays is reduced; material tray recycling and empty material tray storage are both considered; through the integrated detection system, multi-station integrated design is accurately achieved on multiple surfaces of parts such as the middle frame, the precision is high, the occupied space is small, the efficiency is improved, the cost is reduced, and popularization and application in the fields needing large-scale multi-surface detection such as 3C middle frames are facilitated.

Description

Technical Field

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

[0002] With the development of technology, the manufacturing accuracy requirements for 3C products (computers, communications and consumer electronics) are getting higher and higher, which is not only reflected in the conventional industrial camera visual measurement, but also requires accurate detection in other complex environments and 3D volume detection. Undoubtedly, the traditional detection relying 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 , involving comprehensive inspection of multiple surfaces such as the TP side, BP side, and 8 inner sides (TP side / BP side includes all inner facades), which also requires the specific design of an integrated inspection station, and needs to meet the needs of large-scale, high-precision, and high-efficiency quantity inspection. At the same time, higher requirements are also put forward for loading and unloading, minimizing manual intervention, and the material tray can be recycled to improve the efficiency of the whole machine. Summary of the invention

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

[0004] A 3C product integrated detection system comprises a silo module, a transport module and an integrated detection station arranged on a frame; the transport module transports and flips the 3C products between the silo module and the integrated detection station, and the silo module provides an empty tray, a loading tray and a unloading tray for receiving classified 3C products; the integrated detection system also comprises a product identification 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 bin and a plurality of lower bins; the empty tray buffer bin is used to receive empty trays after the upper bin has been loaded with materials and provide empty trays to the plurality of lower bins.

[0006] Furthermore, the silo module also includes a tray dividing module, which is arranged above the empty tray buffer bin, the upper bin and the plurality of lower bins, and is used to transport the empty trays that have been taken out of the upper bin to the empty tray buffer bin and to transport the empty trays in the empty tray buffer bin to the lower bin 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 for classifying and conveying 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 conveying module and is used for temporary storage of products after inspection.

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

[0010] Furthermore, a loading buffer module is arranged side by side upstream of the first measuring and transporting module for receiving the products to be tested from the loading bin and transferring them to the first measuring and transporting 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, and 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 arranged 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, it is a cyclic process of cyclic loading, temporary storage, first surface detection, second surface detection, unloading, temporary storage, and classified unloading).

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

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

[0015] S3, the tray separation module transports the empty tray to the empty tray buffer bin, and transports the tray to the unloading bin of 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 transport 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 testing processor.

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

[0019] S7. The second measurement and transport 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 product identification and measurement of the second side, and transmits the measurement result of the second side to the inspection processor.

[0020] S8. The transfer and handling flip module takes out the products that have been inspected on both sides from the second measurement and carrying module and puts them into the unloading transfer and handling module.

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

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

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

[0024] Compared with the prior art, the beneficial effects of the present invention are: the material taking position / loading position of the system is spatially isolated, so that loading and unloading can be achieved without stopping the machine, thereby improving equipment efficiency; the empty material trays are automatically circulated, 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 center frame are accurately aligned, and a multi-station integrated design is realized, which has high precision and occupies little space, and involves multiple platforms and standard modules, which improves efficiency and reduces costs, and is easy to promote and apply 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; Figure 2 A schematic top view of the integrated detection system of the present invention; Figure 3 It is a schematic diagram of the local structure of the integrated detection system; Figure 4 Schematic diagram of the integrated detection method.

[0026] In the figure, 1. Empty disk cache; 2. Loading bin; 3. Loading and handling module; 4. The first measurement and transport module; 5. Transfer handling and flipping module; 6. A second measurement and transport module; 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; 8. Unloading transfer and handling module; 9. Material cutting and caching module; 10. Classification unloading and conveying module; 11. Material tray separation module; 12. Feeding bin; 13. Feeding cache module; 14. Product identification module. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the 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 creative work are within the scope of protection of the present invention.

[0028] Integrated detection system A 3C product integrated testing system, see Figure 1-Figure 3 The 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 detection of the TP top surface, BP bottom surface, TP side and 8 inner facades included in the BP side of the center frame.

[0029] 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.

[0030] Among them, the silo module includes an empty tray buffer bin 1, an upper material bin 2 and multiple lower material bins 12; the empty tray buffer bin 1 is used to receive empty trays after the upper material bin 2 has been loaded with materials and provide empty trays to the multiple lower material bins 12.

[0031] 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 fetching position through a lifting drive module, that is, a material tray lifting mechanism.

[0032] The empty tray buffer 1, the upper material bin 2 and the multiple lower material bins 12 are arranged on the same side, which is convenient for the staff to operate. The trays in the bin are recycled, which reduces the workload of the staff to place the trays. And each bin can be further provided with a tray counting mechanism, which can be a weight counting method, a thickness detection counting method, a photoelectric inspection counting method, etc., so as to accurately control the time of loading and unloading the trays.

[0033] The plurality of unloading bins 12 include an OK bin and a plurality of NG bins.

[0034] In a specific example, the multiple NG bins include NG1 bin, NG2 bin and NG3 bin, and the loading bin 2, the empty tray buffer bin 1, the NG1 bin, the NG2 bin and the NG3 bin are arranged side by side in sequence. Of course, more NG bins and other arrangements can also be used. The number of NG bins is determined according to the selection of detection indicators or parameters.

[0035] Furthermore, the silo module also includes a tray dividing module 11, which is arranged above the empty tray buffer bin 1, the upper silo 2 and the plurality of 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 buffer bin 1 and to transport the empty trays in the empty tray buffer bin 1 to the lower silo 12 that is short of materials.

[0036] In a specific example, the empty tray buffer 1 can buffer multiple layers of empty trays, preferably 3 empty trays. Advantages: Increase the tray buffer position, buffer the remaining empty trays, and separate them from the loading tray. This enables loading and unloading without stopping the machine, improving equipment efficiency.

[0037] 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 for classifying and conveying the tested products to multiple unloading bins 12.

[0038] The classified unloading and conveying module 10 includes an OK unloading mechanism and an NG unloading mechanism. The NG unloading mechanism transports the NG products that are classified as unqualified after detection to the corresponding NG1 warehouse or NG2 warehouse, and the NG3 warehouse is designed as a backup. The OK unloading mechanism transports the OK products that are qualified after detection to the OK warehouse.

[0039] The pick-up heads of the loading and handling module 3, the transfer and handling flip module 5, the unloading and transfer handling module 8, and the classified unloading and conveying module 10 have similar structures. The transport drive mechanism adopts a translation unit and a lifting unit. The lifting unit is arranged on the translation unit. A plurality of pick-up heads are arranged at the end of the lifting unit. In the preferred example, four pick-up heads with adjustable picking spacing are arranged. Each pick-up head can include one or more suction nozzles.

[0040] The loading and handling module 3 and the classification and unloading and 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 distance with the material tray or carrier to be received.

[0041] Furthermore, the transport module also includes a material unloading buffer module 9, which is arranged upstream of the classification unloading conveying module 10 and is used for temporary storage of products after inspection.

[0042] Furthermore, the handling module also includes a second measuring and carrying module 6 and a material unloading transfer handling module 8. 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 it. The material unloading transfer handling module 8 is arranged side by side on the outside of the second measuring and carrying module 6; the material unloading cache module 9 is arranged between the material unloading transfer handling module 8 and the classification unloading conveying module 10, and is used to pick up and temporarily store the inspected products conveyed from the second measuring and carrying module 6.

[0043] Furthermore, a loading buffer module 13 is arranged side by side upstream of the first measuring and transporting module 4 for receiving the products to be tested from the loading bin 2 and transferring them to the first measuring and transporting module 4 through the loading and handling module 3 as needed.

[0044] Furthermore, the integrated inspection station 7 includes a BP measurement module and a TP measurement module installed on the inspection 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, 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.

[0045] The detection frame 70 is installed on the frame of the integrated detection system in a gantry manner.

[0046] 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.

[0047] The product identification module 14 is used to identify each 3C product so as to facilitate the subsequent unloading 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 formed by laser on site. The 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 it can be 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, a barcode, a 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 by category.

[0048] Integrated detection methods An integrated detection method based on the aforementioned 3C product integrated detection system, see Figure 4 The method comprises 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).

[0049] S1. Place the full material tray into the upper bin 2, and lift the material tray at the upper bin 2 to the material taking position.

[0050] S2, the material loading and handling module 3 takes materials from the material tray and puts them into the material loading buffer module 13.

[0051] 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 with adjustable intervals, so as to take 4 pieces of the products to be tested each time.

[0052] S3, the tray sorting module 11 transports the empty trays to the empty tray buffer bin 1, and transports the trays to the tray-deficient lower bin 12.

[0053] 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 .

[0054] S5. The first measurement and transport module 4 transports the positioned product to be tested to the integrated testing station 7 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 testing processor.

[0055] S6. The transfer 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 puts it into the second measuring and carrying module 6.

[0056] S7. The second measurement and carrying module 6 transports the product whose first side has been measured and positioned to the integrated inspection station 7 for optical scanning and measurement according to the second setting process, completes the product identification and measurement of the second side, and transmits the second side measurement result to the inspection processor.

[0057] S8 , the transfer and handling flipping module 5 takes out the product whose both sides have been inspected from the second measurement and carrying module 6 , and puts it into the unloading transfer and handling module 8 .

[0058] S9, the material transfer and handling module 8 transports the inspected products to the material unloading buffer module 9.

[0059] S10 , the classified material unloading and conveying module 10 takes materials from the unloading buffer module 9 and distributes them into the corresponding material trays of the unloading bin 12 .

[0060] S11, after the material tray of the unloading bin 12 is full of material, the full material tray is unloaded.

[0061] 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.

[0062] 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.

[0063] In specific applications, for 3C products (mobile phones, pads, notebooks, etc.), through this solution, the camera lens assembly is matched with a telecentric lens, a surface light, and a fixture backlight to establish a 2D coordinate system and measure 2D dimensions; the oblique scanning laser scans and measures the groove elevation, matching bevel, corner matching bevel and other features of the middle frame, establishes a 3D XY coordinate system, and measures the inner length and width, matching bevel profile, corner matching bevel profile, straightness and other dimensions; the vertical laser scans the small A / C surface, the small A / C at the corner, the bottom surface of the groove, the adhesive surface, the battery compartment, the LCD compartment, the CAM hole and other features, establishes a 3D Z coordinate system, and measures the small A / C flatness, corner A / C height difference, small A / C height difference, adhesive surface profile, battery compartment flatness, LCD compartment flatness, CAM hole height difference and other dimensions. In this way, the multi-side measurement of the middle frame is fully realized.

[0064] 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 embodiments of the present invention.

Claims

1. A 3C product integrated detection system, comprising a silo module, a handling 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 testing station (7); the silo module provides an empty tray, a loading tray, and a unloading tray for receiving the classified 3C products; the integrated testing system also includes a product identification module (14) for identifying each 3C product to facilitate subsequent unloading by category.

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

3. 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 3C product integrated detection system according to claim 2 or 3, characterized in that: The material bin module also includes a material tray dividing module (11), which is arranged above the empty tray buffer bin (1), the upper material bin (2) and the plurality of lower material bins (12) and is used to transport the empty material trays that have been taken out of the upper material bin (2) to the empty tray buffer bin (1) and to transport the empty material trays in the empty tray buffer bin (1) to the lower material bin (12) that is short of material trays.

5. The 3C product integrated detection system according to claim 2, characterized in that: The transport module comprises a loading and transporting module (3), a first measuring and transporting module (4) having a rotating platform, and a classification and unloading conveying module (10); the loading and transporting module (3) is arranged above the loading bin (2) and the first measuring and transporting module (4), and is used for loading and transporting products to be tested; the conveying end of the first measuring and transporting 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 for classifying and transporting the tested products to a plurality of the unloading bins (12).

6. The 3C product integrated detection system according to claim 5, characterized in that: The transport module further comprises a material unloading buffer module (9), which is arranged upstream of the classification unloading conveying module (10) and is used for temporary storage of products after inspection.

7. The 3C product integrated detection system according to claim 6, characterized in that: The handling module further comprises a second measuring and transporting module (6) and a material unloading and transfer handling module (8), wherein the second measuring and transporting module (6) has the same structure as the first measuring and transporting module (4) and is arranged side by side and spaced apart therefrom, and the material unloading and transfer handling module (8) is arranged side by side on the outside of the second measuring and transporting module (6); the material unloading and buffering module (9) is arranged between the material unloading and transfer handling module (8) and the classification unloading and conveying module (10), and is used for picking up and temporarily storing the inspected products conveyed from the second measuring and transporting module (6).

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

9. The 3C product integrated detection system according to claim 1, characterized in that: The integrated inspection station (7) comprises a BP measurement module and a TP measurement module mounted on an inspection frame (70); the BP measurement module and the TP measurement module have the same structure, and both comprise 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 inspected, the emission directions of the first oblique scanning laser (72) and the second oblique scanning laser (73) are arranged opposite to each other towards a set of diagonals of the product to be inspected, 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 inspected.

10. An integrated detection method based on the 3C product integrated detection system according to claim 8 or 9, characterized in that the method include: S1, placing a full material tray into the upper material bin (2), and lifting the material tray at the upper material bin (2) to the material taking position; S2, the material loading and handling module (3) takes the material from the material tray and puts it into the material loading buffer module (13); S3, the tray sorting module (11) moves the empty trays to the empty tray buffer (1), and moves the trays to the tray-deficient unloading bin (12); S4, the product to be tested in the loading buffer module (13) is taken out and transferred to the first measurement and transport 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 testing 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 to the integrated inspection station (7) according to the second set process 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 inspection 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 material transfer module (8) transfers the inspected products to the material discharging buffer module (9); S10, the classified material 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.

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