COB automatic test device and method

Abstract

The invention relates to the technical field of optical communication, and provides COB automatic test equipment, which comprises an aging strip trolley, a bonding strip stock bin, a material taking device and a test mechanism, and is characterized in that the aging strip trolley is used for storing aging strips, the bonding strip stock bin is used for storing bonding strips with COB, and the material taking device is used for testing the bonding strips with COB. The transfer mechanism is used for transferring the COB between the bonding strip and the aging strip, and the testing mechanism is used for testing the COB before aging and testing the COB after aging. The invention also provides a COB automatic test method. According to the invention, automatic COB testing can be realized, the problem of poor wire collapse caused by manual handheld COB plugging and unplugging is avoided, manpower is reduced, the efficiency and the product are improved, and the cost is greatly saved.

Description

Technical Field

[0001] The present invention relates to the field of optical communication technology, and in particular to a COB automatic testing device and method. Background Art

[0002] With the rapid development of optical communications, the demand for optical modules has grown rapidly in recent years. Currently, COB loading and unloading and automatic testing are mainly done manually, which has the following defects:

[0003] 1. Manual insertion and removal of COB fingers are subject to greater force, making insertion and removal difficult. It is easy to contact the gold wire on the COB, causing defects such as wire collapse;

[0004] 2. It is difficult to ensure the continuity of manual work, resulting in low efficiency and output;

[0005] 3. Designing an auxiliary plug-in fixture can improve the risk of line collapse, but the COB needs to be manually removed from the wire clamp, then loaded into the clamp, and then manually held and inserted into the female port of the aging strip. This solution requires the manufacture of a large number of auxiliary fixtures to accommodate the aging load of an aging box. Moreover, new fixtures need to be remade after product upgrades, which is very costly.

[0006] 4. Inconsistent techniques, poor position repeatability, or over-insertion causing test communication failures;

[0007] 5. Currently, manual loading - pre-aging test - aging - initial test after aging - retest after aging - manual unloading are serial production processes. In order to achieve a balance in production efficiency, especially when the aging time is long, a large amount of semi-finished products need to be stored in the front-end of the aging process before the process is transferred. This results in a long waiting time for the process and low production efficiency, or the need to consume equipment types and costs to achieve the output target;

[0008] 6. The efficiency of the current single-station test bench is too low to meet production needs;

[0009] 7. At present, there are three test procedures. Each test requires manual insertion and collection of aging strips. The workstation cannot be separated from manual operation, which consumes a lot of manpower.

[0010] 8. Currently, the above process consumes about 5 people. Summary of the Invention

[0011] The object of the present invention is to provide a COB automatic testing device and method, which can at least solve some of the defects in the prior art.

[0012] To achieve the above objectives, the present invention provides the following technical solutions: a COB automatic testing device, comprising an aging strip trolley, a strip material bin, a material taking device and a testing mechanism,

[0013] The aging strip trolley is used to store aging strips.

[0014] The striping strip silo is used to store striping strips with COB.

[0015] The material taking device is used to complete the transfer of COB between the punching strip and the aging strip.

[0016] The testing mechanism is used to complete the testing of COB before aging and the testing of COB after aging.

[0017] Furthermore, the material picking device includes a three-axis transport mechanism and a clamping and plugging mechanism, the clamping and plugging mechanism is arranged on the three-axis transport mechanism, and the clamping and plugging mechanism is used to grab the COB.

[0018] Furthermore, the clamping and plugging mechanism includes a mechanical claw and an electric claw for controlling the opening and closing of the mechanical claw. The mechanical claw includes a positioning boss that can limit the positioning groove of the COB and a clamping surface that can clamp the side of the COB.

[0019] Furthermore, the material picking device also includes a COB transfer mechanism, which includes a transfer mechanical clamp and a transfer air clamp for controlling the opening and closing of the transfer mechanical clamp. The transfer mechanical clamp includes a flat surface for the bottom surface of the COB to rest on and an inclined surface for pressing the top surface of the COB.

[0020] Furthermore, it also includes a multi-station temporary storage device with multiple stations for placing aging strips. The multi-station temporary storage device includes three sets of guide rails. The three sets of guide rails are respectively an intermediate station, an insertion and removal station, and a testing station. The intermediate station is opposite to the entrance and exit window of the aging strip trolley.

[0021] Furthermore, it also includes a workstation switching mechanism for completing the transfer of the aging strips between each of the workstations. The workstation switching mechanism includes a screw module, a lifting cylinder and an aging strip air claw. The screw module is used to drive the aging strip air claw to move between multiple workstations of the multi-station temporary storage device, the lifting cylinder is used to lift the aging strip, and the aging strip air claw is used to grab the aging strip lifted by the lifting cylinder.

[0022] Furthermore, the testing mechanism includes a linear motion mechanism and a probe fixing seat, a plurality of test probes are fixed on the probe fixing seat, and the linear motion mechanism is used to drive the probe fixing seat to move.

[0023] Furthermore, it also includes an aging strip entry and exit mechanism for exporting or importing the aging strips in the aging strip trolley, and the aging strip entry and exit mechanism is docked with the multi-station temporary storage device.

[0024] Furthermore, it also includes a code scanning detection device, which is used to identify the SN number on the COB, to determine whether there is a COB at each station of each stripe in the stripe material bin, to determine whether there is a COB at each station of each aging strip in the aging strip trolley, and to determine the correctness of the incoming material status.

[0025] The embodiment of the present invention provides another technical solution: a COB automatic testing method, comprising the following steps:

[0026] S1, pre-fill the aging strip trolley with aging strips, and fill the strip silo with COB strips;

[0027] S2, taking out the aging strip from the aging strip trolley, and using the material taking device to transfer the COB on the punching line to the aging strip;

[0028] S3, the COB on the aging strip is tested before aging by the testing mechanism, and if there is no problem, the aging strip is returned to the aging strip trolley;

[0029] S4, performing aging operation on the aging strips in the aging strip trolley;

[0030] S5, after the aging operation is completed, the aging strips in the aging strip trolley are taken out and the aging test is performed using the testing mechanism. If there is no problem, the COB on the aging strips is unloaded onto the punching line.

[0031] Compared with the existing technology, the beneficial effects of the present invention are: it can realize COB automated testing, avoid the problem of wire collapse caused by manual hand-held COB plugging and unplugging, reduce manpower, improve efficiency and product, and greatly save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic structural diagram of a COB automatic testing device provided by an embodiment of the present invention;

[0033] Figure 2 A schematic structural diagram of a COB automatic testing device provided by an embodiment of the present invention (with a hidden cover);

[0034] Figure 3 A schematic structural diagram of a aging strip trolley for a COB automatic testing device provided in an embodiment of the present invention;

[0035] Figure 4 A schematic structural diagram of an aging strip trolley and an aging strip entry and exit mechanism of a COB automatic testing device provided by an embodiment of the present invention;

[0036] Figure 5A schematic structural diagram of a stripe material bin and stripe entry and exit mechanism of a COB automatic testing device provided in an embodiment of the present invention;

[0037] Figure 6 A schematic structural diagram of a three-axis transport mechanism, a clamping and plugging mechanism, and a code scanning detection device for a COB automatic testing device provided by an embodiment of the present invention;

[0038] Figure 7 A schematic structural diagram of a COB transfer mechanism of a COB automatic test device provided by an embodiment of the present invention;

[0039] Figure 8 for Figure 7 Schematic diagram of the partial structure from the front perspective;

[0040] Figure 9 A schematic structural diagram of a multi-station temporary storage device for COB automatic testing equipment provided by an embodiment of the present invention;

[0041] Figure 10 A schematic structural diagram of a station switching mechanism for a COB automatic testing device provided by an embodiment of the present invention;

[0042] Figure 11 A schematic diagram of the structure of a test mechanism of a COB automatic test equipment provided by an embodiment of the present invention;

[0043] Figure 12 A schematic structural diagram of a multi-station test board plug-in and fixation mechanism for a COB automatic test device provided by an embodiment of the present invention;

[0044] Figure 13 A schematic structural diagram of a defective disk device of a COB automatic testing device provided by an embodiment of the present invention;

[0045] Figure 14 An enlarged structural diagram of a clamping and plugging mechanism of a COB automatic testing device provided in an embodiment of the present invention;

[0046] Figure 15 A schematic diagram of the enlarged structure of a clamping and plugging mechanism of a COB automatic testing device provided by an embodiment of the present invention from another perspective;

[0047] Figure 16 A schematic diagram of the structure of a COB of a COB automatic testing device provided by an embodiment of the present invention;

[0048] Figure 17 A schematic structural diagram of a stripping line of a COB automatic testing device provided by an embodiment of the present invention;

[0049] Figure 18An enlarged structural diagram of a trolley translation mechanism of a COB automatic testing device provided by an embodiment of the present invention;

[0050] In the accompanying drawings:

[0051] 1- rack;

[0052] 21-Aging strip trolley; 211-Aging strip; 211a-COB inserting into the upper female port of the aging strip; 212-Universal wheel; 21a-Car loading area; 213-Pressing cylinder; 22-Aging strip loading and unloading mechanism; 22a-Trolley lifting mechanism; 22b-Trolley translation mechanism; 221-Avoidance cylinder; 222-Hook strip cylinder; 223-Hook strip clamp; 223a-Hook strip surface; 224-Sensor;

[0053] 32-line punching material bin; 32a-line punching lifting mechanism; 32b-line punching entry and exit mechanism; 321-line punching; 321a-positioning groove; 321b-pick-up slot; 321c-gold finger end;

[0054] 4- Material removal device; 41- Clamping and plugging mechanism; 411- Electric claw; 412- Mechanical clamp; 412a- Positioning boss; 412b- Clamping surface; 42- Scanning detection device; 43- Three-axis transport mechanism; 431- X-axis;

[0055] 5-COB transfer mechanism; 5a-COB transfer mechanism station; 51-transfer air gripper; 52-transfer mechanical clamp; 52a-plane; 52b-inclined surface;

[0056] 6-Multi-station temporary storage device; 61a-Intermediate station; 611-Guide rail; 62a-Plug-in station; 63a-Test station;

[0057] 7-station switching mechanism; 71-screw module; 72-lifting cylinder; 73-aging strip air claw;

[0058] 8-test mechanism; 81-test probe; 82-probe fixing seat; 83-heat dissipation device;

[0059] 9-Multi-station test board plug-in and fixing mechanism; 91-Plug-in cylinder; 92-Eight groups of test boards; 921-L-type male socket; 93-Test adapter plate; 931-Female socket; 94-Test fixing plate;

[0060] 10- Defective disk device. DETAILED DESCRIPTION

[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 are within the scope of protection of the present invention.

[0062] See also Figures 1 to 18 , an embodiment of the present invention provides a COB automatic testing device, including an aging strip trolley 21, a bonding strip material bin 32, a material picking device 4 and a testing mechanism 8. The aging strip trolley 21 is used to store the aging strips 211; the bonding strip material bin 32 is used to store the bonding strips 321 with COBs; the material picking device 4 is used to complete the transfer of COBs between the bonding strips 321 and the aging strips 211; the testing mechanism is used to complete the testing of the COBs before aging and after aging. It can realize the automated testing of COBs, avoid the problem of wire collapse caused by manual hand-held COB plugging and unplugging, reduce manpower, improve efficiency and products, and greatly save costs. The material picking device 4 may include a three-axis transport mechanism 433, a clamping and plugging mechanism 41 and a COB transfer mechanism 5, which realizes the function of automatically transferring the COBs in the bonding strip clamp of the front-end bonding process to the aging strip 211, avoiding the problem of wire collapse caused by manual hand-held COB plugging and unplugging, and effectively reducing the risk of defects and costs. The universal clamping and plugging mechanism 41 and the COB transfer mechanism 5 cooperate to be compatible with the automatic transfer of all-speed optical module COBs, eliminating the manufacturing cost of COB plug-in auxiliary fixtures. In addition, the COB automatic testing equipment also includes a multi-station temporary storage device 6, a station switching mechanism 7, an aging strip entry and exit vehicle mechanism 22, a code scanning detection device 42, a multi-station test board plug-in and fixing mechanism 9, and a defective disk device 10. Among them, the aging strip trolley 21 has a large capacity, which can reduce the frequency of manual transfer of the aging strips 211 to the intermediate aging box and shorten the transfer time; after each automatic testing process completes a group of aging strips 211, the aging strips 211 are automatically stored and stored, without the need for manual real-time pick-up and placement, which can greatly reduce labor costs. The multi-station test board plug-in and pull-out mechanism realizes the synchronous testing function of the COBs at the eight stations on the aging strip 211, and the test efficiency is increased to eight times; different models of COB save different test mechanism parameters, which meet the universal test of all models of COB. When the model is changed or the product is updated, the equipment software can be switched with one click, and no accessories need to be replaced to meet the use requirements. The code scanning detection device realizes the function of automatically identifying the SN number on the COB, realizes the function of automatically detecting the status of incoming materials, and optimizes various production management. The software automatically calculates the unloading station according to the SN number and rules, realizes the function of automatic classification and unloading of COBs, and avoids the problem of mixing in manual classification. The three-in-one functional equipment greatly reduces the cost of equipment development and manufacturing. The following embodiments will refine them one by one.

[0063] See also Figures 1 to 18The material picking device 4 includes a three-axis transport mechanism 433 and a clamping and plugging mechanism 41. The clamping and plugging mechanism 41 is provided on the three-axis transport mechanism 433 and is used to grab the COB. Preferably, the clamping and plugging mechanism 41 includes a mechanical claw 412 and an electric claw 411 for controlling the opening and closing of the mechanical claw. The mechanical claw 412 includes a positioning boss 412a that can limit the positioning groove of the COB and a clamping surface 412b that can clamp the side of the COB. The material picking device 4 also includes a COB transfer mechanism 5. The COB transfer mechanism 5 includes a transfer mechanical clamp 52 and a transfer air clamp 51 for controlling the opening and closing of the transfer mechanical clamp 52. The transfer mechanical clamp 52 includes a flat surface 52a for the bottom surface of the COB to rest and an inclined surface 52b for pressing the top surface of the COB. Specifically, the three-axis transport mechanism 433 comprises three sets of linear motion mechanisms arranged perpendicularly along the X, Y, and Z axes, each of which is driven by a motor-driven lead screw module. The gripping and plugging mechanism 41 and the barcode scanning and detection device 42 are fixed to the Z-axis linear motion slider, enabling COB detection, barcode scanning, placement, insertion, and transfer. Furthermore, the gripping and plugging mechanism 41 includes an electric gripper 411 and a mechanical clamp 412. The electric gripper 411 controls the opening and closing of the mechanical clamp 412, enabling COB placement, insertion, and positioning. When the COB is set in the punching strip 321, the COB's positioning groove 321a is occupied, and the pick-up and placement slot 321b of the punching strip 321 is spaced apart from the positioning groove 321a. In addition, the length of the COB of different product models is different, and the spacing between the pick-up and placement slot 321b of the punching strip 321 and the positioning groove 321a is also different. The mechanical clamp 412 is characterized by including a positioning boss 412a and a clamping surface 412b. The clamping surface 412b is used to clamp the side of the COB. Because the friction clamping force of the COB inserted into the female port 211a on the aging strip is large, the electric claw controls the clamping force of the clamping surface 412b on the side of the COB, which cannot meet the purpose of inserting the COB into place. When the positioning boss 412a is used to align and snap into the positioning groove 321a of the COB, the COB is inserted or removed by transporting the X-axis movement; the positioning boss 412a limits the positioning groove of the COB to achieve COB insertion depth positioning and removal distance positioning. The positioning boss 412a is set higher than the clamping surface 412b, and the height difference cannot be greater than the distance from the female port 211a slot on the aging strip to the PCB board on the aging strip, thereby ensuring that the space for plugging and unplugging does not interfere. Furthermore, the height difference cannot be less than the placement depth of the COB in the punching strip, thereby ensuring that when the mechanical clamp is used to remove the COB in the punching strip, it is not restricted by the positioning boss 412a and can clamp the complete side of the COB. Furthermore, the spacing between the positioning boss 412a and the clamping surface 412b is compatible with the maximum distance from the positioning groove 321a of all models of COBs to the pick-up and placement slot 321b of the punching strip.This achieves compatibility with all models of the clamping and plugging mechanism 41. In addition, the COB transfer mechanism 5 includes a transfer air gripper 51 and a transfer mechanical clamp 52. The transfer mechanical clamp 52 is designed with two positioning surfaces, a flat surface 52a and an inclined surface 52b. The flat surface 52a is used to limit the height of the COB, and the inclined surface 52b is used to press the gold finger end 321c of the COB to ensure stable clamping and positioning of the COB. The gold finger end 321c does not restrict the device for all COBs, ensuring that the clamp is universal. The transfer air gripper 51 is used to control the opening and closing of the transfer mechanical clamp 52, and cooperates with the clamping and plugging mechanism 41 to realize the clamping position switching function of the COB.

[0064] See also Figures 1 to 18 The present device also includes a multi-station temporary storage device 6 having multiple stations for placing the aging strips 211. The multi-station temporary storage device 6 includes three sets of guide rails 611. The three sets of guide rails 611 are respectively an intermediate station 61a, an insertion and removal station 62a, and a test station 63a. The intermediate station 61a is directly opposite the entrance and exit window of the aging strip trolley 21. Preferably, the present device also includes a station switching mechanism 7 for completing the transfer of the aging strips 211 between the stations. The station switching mechanism includes a screw module 71, a lifting cylinder 72, and an aging strip air claw 73. The screw module 71 is used to drive the aging strip air claw 73 to move between the multiple stations of the multi-station temporary storage device 6. The lifting cylinder 72 is used to lift the aging strip 211. The aging strip air claw 73 is used to grab the aging strip 211 lifted by the lifting cylinder 72. Specifically, the multi-station temporary storage device 6 includes three sets of guide rails for dividing the aging strips into three different stations, which are respectively named as the intermediate station 61a, the plug-in station 62a and the test station 63a. The guide rail 611 of the intermediate station 61a is arranged at the entrance and exit window facing the aging strip trolley, and the aging strip entrance and exit mechanism 22 is used to control the transfer of the aging strip 211 from the aging strip trolley 21 to the guide rail 611 of the intermediate station 61a. Preferably, the plug-in station 62a of the multi-station temporary storage device 6 is provided with an aging strip positioning cylinder for performing X-axis positioning on the aging strip transferred to the guide rail of the plug-in station 62a. Ensure the consistency of the position of the aging strip. In addition, the station switching mechanism 7 includes a screw module 71, a lifting cylinder 72 and an aging strip air claw 73. For the entire machine to be reset to its initial state, the lifting cylinder 72 and the aging strip air gripper 73 are initially returned to their origins. The screw module 71 is calibrated to three positions, respectively positioning the aging strip air gripper in the middle of the three sets of guide rails of the multi-station temporary storage device 6. To switch stations, the lifting cylinder 72 extends to push the aging strip above the guide rails, the aging strip air gripper 73 extends to clamp and center the aging strip, the screw module moves to the new station position, the lifting cylinder 72 descends again, and the aging strip air gripper 73 returns to its origin, completing the station switching action and preparing for the transfer of loading and unloading and testing stations 63a.

[0065] See also Figures 1 to 18 The test mechanism 8 includes a linear motion mechanism and a probe fixing seat 82. A plurality of test probes 81 are fixed on the probe fixing seat 82. The linear motion mechanism is used to drive the probe fixing seat 82 to move. Specifically, the test mechanism 8 includes three sets of linear motion mechanisms, X, Y, and Z, which are perpendicular to each other, a test probe 81, a probe fixing seat 82, and a heat dissipation device 83. The three sets of linear motion mechanisms, which are perpendicular to each other, meet the three-axis movement of the test probe 81 and the different test position requirements of different products. When changing models, the software can be switched with one click without manual adjustment. There are 8 groups of test probes 81 fixed on the probe fixing seat, which correspond one-to-one to the 8 groups of female ports 211a on the aging strip, and the COBs on the 8 groups of female ports 211a are tested respectively. The heat dissipation device meets the required environment for the test and ensures a more suitable and stable ambient temperature during the test process.

[0066] See also Figures 1 to 18, this equipment also includes an aging strip entry and exit mechanism 22 for exporting or importing the aging strips 211 in the aging strip trolley 21, and the aging strip entry and exit mechanism 22 is docked with the multi-station temporary storage device. Specifically, the aging strip trolley 21 has a large capacity and can store more than 20 layers of aging strips 211 at a time. The trolley is equipped with universal wheels 212, which makes it easy for manual transfer of the heavy-loaded aging strip trolley 21 to the aging process for use. The aging strip trolley 21 is fixed in the loading area 21a, and the loading area is equipped with a trolley clamping cylinder 213. Before the equipment is used, the trolley is manually pushed to the loading area 21a. After the equipment is started, the clamping cylinder 213 rotates 90 degrees and clamps the trolley to achieve automatic clamping. After the equipment is completed, the trolley clamping cylinder 213 automatically returns to its initial state and issues an alarm to remind the operator that the operation is complete and to remove the trolley. The equipment then achieves unmanned operation and production. Preferably, the aging strip loading and unloading mechanism 22 includes a trolley lifting mechanism 22a and a trolley translation mechanism 22b to automatically load and unload the aging strips. Similarly, the strip-making material bin 32 includes a strip-making material lifting mechanism 32a and a strip-making material loading and unloading mechanism 32b to automatically load and unload the strips. Preferably, the aging strip loading and unloading mechanism 22 also includes a bypass cylinder 221, a strip-hooking cylinder 222, and a strip-hooking clamp 223. When the entire machine is reset to its initial state, the avoidance cylinder 221 and the bar hook cylinder 222 are initially retracted to their origin (upward). The three-axis transport mechanism 433's transport X-axis moves to the aging bar's outbound coordinate. The avoidance cylinder 221 extends, causing the bar-pushing surface of the bar hook clamp 223 to be lower than the top surface of the aging bar. As the transport X-axis switches to the inbound coordinate, the aging bar is pushed into position on the trolley, automatically clearing any excess material on the guide rails of the intermediate station 61a that could have been caused by an abnormal machine shutdown. Furthermore, the transport X-axis switches to the detection coordinate, and the trolley lifting mechanism 21 resets and aligns the first layer of aging bars in the trolley with the guide rails of the intermediate station 61a, also aligning with the sensor 224 on the X-axis. Once the sensor 224 detects the presence of aging bars, the aging bars can be loaded and unloaded. Similarly, after completing the test loading and unloading of the first aging bar, the loading and unloading of all aging bars in the remaining trolleys is sequentially detected and completed. For the control of the aging strip out of the vehicle, after the sensor 224 detects the presence of the aging strip 211, the sensor 224 is a photoelectric sensor, and the transport X-axis 431 switches to the storage coordinate. The hook cylinder 222 extends, so that the hook surface 223a of the hook clamp 223 is lower than the upper surface of the aging strip. As a result, when the transport X-axis 431 switches to the storage coordinate, the aging strip is hooked into place and the vehicle is completed. Then the avoidance cylinder 221 and the hook cylinder 222 return to the origin, reserving space for subsequent aging strip station switching, unloading and other actions.For the control of the aging strips entering the car, the transport X-axis moves to the outbound coordinate, and the avoidance cylinder 221 extends, so that the pushing surface of the hook strip clamp 223 is lower than the upper surface of the aging strip, so that the aging strip is pushed into the car into place when the transport X-axis switches to the inbound coordinate, completing the entry, and then the transport X-axis 431 switches to the detection coordinate for subsequent detection of whether there are aging strips on the next layer. If there are no aging strips on the last layer, the avoidance cylinder 221 returns to the origin, and the reset prompt is: the equipment operation is completed, please change the material operation.

[0067] See also Figures 1 to 18 The equipment also includes a code scanning detection device 42, which is used to identify the SN number on the COB, to determine whether there is a COB at each station of each stripe 321 in the stripe silo 32, to determine whether there is a COB at each station of each aging strip 211 in the aging strip trolley 21, and to determine the correctness of the incoming material status. Specifically, it includes detection devices such as a camera, a lens, and a light source, which are used to identify the SN number on the COB, to determine whether there is a COB at each station of each stripe 321 in the stripe silo, to determine whether there is a COB at each station of each aging strip 211 in the aging strip trolley, and to determine the correctness of the incoming material status, so as to avoid operation accidents caused by employees misplacing materials or selecting the wrong process. In order to facilitate production management, for COB post-aging test blanking equipment, after automatically identifying the SN on the COB on the aging bar 211, the software then calculates the sub-work order number corresponding to the COB according to the sub-work order rule corresponding to the SN, thereby calculating the corresponding punching line layer number and the corresponding COB work number, and then transfers the blanking according to the calculated position to ensure that there is no mixing of two different sub-work order COBs in the same punching line, realizing the COB automatic classification blanking function.

[0068] See also Figures 1 to 18 , this equipment also includes a multi-station test board plug-in and fixing mechanism 9, which includes a plug-in cylinder 91, eight groups of test boards 92, a test adapter plate 93, a test fixing plate 94, etc. The eight groups of test boards 92 are arranged on the test fixing plate 94, and each group of test boards 92 communicates with each group of female sockets 931 of the test adapter plate 93 through an L-shaped male socket 921. The test adapter plate is used to transfer the communication pins of the 8 groups of test boards to the straight sockets of the test adapter plate. When the whole machine is reset to the initial state, the plug-in cylinder is located at the origin. After the station switching mechanism transfers the aging strip from the middle station 61a to the test station 63a, the plug-in cylinder extends to the moving point, realizing the function of automatically inserting the gold finger end of the aging strip into the test adapter plate, thereby realizing the test communication between each group of female ports 211a on the aging strip and each group of test boards. The 8 groups of test boards correspond one-to-one with the 8 groups of aging strip female ports 211 a and one-to-one with the 8 groups of test probes, forming 8 groups of independent test mechanisms for synchronous testing and maximum efficiency.

[0069] See also Figures 1 to 18 The equipment also includes a defective tray device 10, which includes a defective tray, a first-station detection sensor, a defective tray fixing box, a fixing spring, and a fixed push plate. The defective tray is used to store COBs that fail testing. The first-station detection sensor is used to determine whether there is material in the first station of the defective tray. When the entire machine is reset, it is used to determine whether the defective tray is in the correct state, avoiding stacking and unloading problems caused by employees not clearing defective products in the previous process. The stations of the defective tray are designed in an array of rectangular shapes, thereby achieving the purpose of automatic and orderly classification.

[0070] See also Figures 1 to 18 , an embodiment of the present invention provides a COB automatic testing method, comprising the following steps: S1, pre-filling the aging bar trolley 21 with aging bars 211, and filling the bonding bar silo 32 with COBs; S2, taking out the aging bar 211 from the aging bar trolley 21, and using the material taking device 4 to transfer the COBs on the bonding bar 321 to the aging bar 211; S3, performing a pre-aging test on the COBs on the aging bar 211 through the testing mechanism, and if there is no problem, returning the aging bar 211 to the aging bar trolley 21; S4, performing an aging operation on the aging bar 211 in the aging bar trolley 21; S5, after the aging operation is completed, taking out the aging bar 211 from the aging bar trolley 21 and using the testing mechanism to perform a post-aging inspection, and if there is no problem, unloading the COBs on the aging bar to the bonding bar 321. Specifically, two rounds of aging are usually performed, and then the test results after the two aging operations are compared to see if they meet the standards. The two aging operation times can be designed to be different, but the test parameters are the same. For example, the first round of aging is performed on the aging strips in the aging strip trolley; after the first round of aging is completed, the aging strips in the aging strip trolley are removed and the test mechanism is used to perform an initial test after aging. If there are no problems, the aging strips are returned to the aging strip trolley; the second round of aging is performed on the aging strips in the aging strip trolley; after the second round of aging is completed, the aging strips in the aging strip trolley are removed and the test mechanism is used to perform a re-test after aging. If there are no problems, the COBs on the aging strips are cut onto the stripping lines.

[0071] As an optimization solution of the embodiment of the present invention, please refer to Figures 1 to 18The control logic of the COB pre-aging loading test is as follows: when taking the transfer COB, the clamping surface 412b of the mechanical clamp 412 of the clamping and plugging mechanism is adjusted to the middle of the pick-and-place slot 321b of the punching strip 321. The electric claw 411 controls the mechanical clamp 412 to clamp the COB, so that the COB is transferred from the punching strip 321 to the mechanical clamp 412. The three-axis transport mechanism 43 controls the COB to move to the COB transfer mechanism station 5. The transfer air claw 51 controls the transfer mechanical clamp 52 to clamp the COB. The electric claw 411 controls the mechanical clamp 412 to open. The three-axis transport mechanism 433 switches the XZ coordinates so that the positioning boss 412a of the mechanical clamp 412 is aligned and inserted into the COB positioning groove 321a. The electric claw 411 then controls the mechanical clamp 412 to clamp the COB. The transfer air claw 51 controls the transfer mechanical clamp 52 to open, preparing for the subsequent insertion of the COB into the aging strip female port 211a. The three-axis transport mechanism 433 cooperates with the clamping and plugging mechanism 41 to transfer the COBs in the stripping strip 321 of the stripping strip hopper 32 to the COB transfer mechanism 5, and then to the aging strip 211, thereby realizing the automatic loading function of the COBs. Similarly, the control logic of the retest of the unloading test after aging is as follows: when taking the COB in the female port 211a of the aging strip 211, the positioning boss 412a of the mechanical clamp 412 is adjusted to align and snap into the COB positioning groove 321a, and the electric claw 411 then controls the mechanical clamp 412 to clamp the COB, and the X-axis 431 of the three-axis transport mechanism 433 runs a certain pulling distance to successfully pull out the COB in the female port 211a. Then the three-axis transport mechanism 433 controls the COB to move to the COB transfer mechanism station 5a, the transfer air gripper 51 controls the transfer mechanical clamp 52 to clamp the COB, the electric gripper 411 controls the mechanical clamp 412 to open, and the three-axis transport mechanism 433 switches the XZ axis coordinates so that the clamping surface 412b of the mechanical clamp 412 of the clamping and plugging mechanism 41 is adjusted to the distance of the COB positioning groove 321a, which is basically equal to the distance from the pick-up and place slot 321b of the punching line 321 to the COB positioning groove 321a. The electric gripper 411 controls the mechanical clamp 412 to clamp the COB, so that the COB is transferred from the aging bar mother port 211a to the mechanical clamp 412. The transfer air gripper 51 controls the transfer mechanical clamp 52 to open, preparing for the subsequent COB unloading to the punching line 321 or the defective box. The three-axis transport mechanism 433 cooperates with the clamping and plugging mechanism 41 to transfer the COB in the aging strip mother port 211a in the aging strip in and out vehicle mechanism 22 to the COB transfer mechanism 5, and then transfer it to the punching line 321, thereby realizing the automatic unloading function of the COB.

[0072] As an optimization solution of the embodiment of the present invention, please refer to Figures 1 to 18For the control of COB loading test before aging, the COB station switching mechanism 7 is used to transfer the aging strip 211 of the intermediate station 61a to the plug-in station 62a, and the three-axis transport structure 43, the clamping and plug-in mechanism 41, and the COB transfer mechanism 5 jointly perform COB loading. After the loading of the aging strip 211 of the plug-in station 62a is completed, the aging strip 211 of the plug-in station 62a is transferred to the test station 63a, and the eight-station COB synchronous test is performed by the test mechanism 8. Then, the aging strip entry and exit mechanism 22 controls the transfer of the next aging strip 211 from the small car to the guide rail of the intermediate station 61a, and the COB station switching mechanism 7 transfers the next aging strip 211 of the intermediate station 61a to the plug-in station 62a. In the next step, the loading of the next aging strip 211 and the testing of the previous aging strip 211 are carried out simultaneously. The testing efficiency of the previous aging strip 211 and the loading efficiency of the next aging strip 211 are basically balanced, and the equipment production capacity is high. The plug-in and unplug station 62a and the test station 63a are separated and do not interfere with each other. If the loading of the next aging strip 211 is completed first, it is necessary to wait for the test completion signal. If the test of the previous aging strip 211 is completed first, the station switching mechanism 7 transfers the previous aging strip 211 from the test station 63a to the intermediate station 61a. If there is a test failure, the three-axis transport mechanism 433 and the clamping mechanism 41 unload all the defective COBs to the defective disk device 10. If all tests are qualified, the defective unloading action is not performed. Next, the aging strip entry and exit mechanism 22 controls the aging strip 211 to be transferred from the intermediate station 61a and recovered to the aging strip layer number of the trolley. After waiting for the loading of the next aging strip 211 to be completed, the COB station switching mechanism 7 transfers the aging strip 211 of the plug-in and unplug station 62a to the test station 63a for testing by the testing mechanism 8. Similarly, the station transfer of all aging strips in the trolley is completed, and the loading and testing steps of all COBs are completed. Similarly, for the control of retesting and unloading after aging, the COB station switching mechanism 7 is used to transfer the aging strip of the intermediate station 61a to the test station 63a, and the testing mechanism 8 performs eight-station COB synchronous testing. After the test of the aging strip at the test station 63a is completed, the aging strip at the test station 63a is transferred to the plug-in station 62a. The aging strip entry and exit mechanism 22 controls the aging strip to transfer the next aging strip from the trolley to the guide rail of the intermediate station 61a. The COB station switching mechanism 7 transfers the next aging strip from the intermediate station 61a to the test station 63a. The COB unloading step is jointly performed by the three-axis transport structure 43, the clamping and plug-in mechanism 41, and the COB transfer mechanism 5. If there is a test failure, the defective COB is unloaded to the defective disk device, and the qualified COB is unloaded into the punching line. The test of the next aging strip and the unloading of the previous aging strip are carried out simultaneously. The test efficiency of the next aging strip and the unloading efficiency of the previous aging strip are basically balanced, and the equipment production capacity is high. If the next aging strip test is completed first, you need to wait for the unloading completion signal.If the unloading of the previous aging strip is completed first, the station switching mechanism will transfer the previous aging strip from the plug-in station 62a to the intermediate station 61a. Furthermore, the aging strip entry and exit mechanism 22 will control the transfer of the aging strip from the intermediate station 61a to the aging strip layer number of the trolley. After waiting for the next aging strip test to be completed, the COB station switching mechanism 7 will transfer the aging strip of the test station 63a to the plug-in station 62a. Similarly, the station transfer of all aging strips in the trolley will be completed, and the test unloading steps of all COBs will be completed. For the control of the initial test after aging, the COB station switching mechanism 7 is used to transfer the aging strip of the intermediate station 61a to the test station 63a, and the test mechanism 8 will perform eight-station COB synchronous testing. After the test of the aging strip at the test station 63a is completed, the aging strip at the test station 63a is transferred to the plug-in station 62a. The aging strip entry and exit mechanism 22 controls the aging strip to transfer the next aging strip from the trolley to the guide rail of the intermediate station 61a. The COB station switching mechanism 7 transfers the next aging strip from the intermediate station 61a to the test station 63a. The COB unloading step is jointly performed by the three-axis transport structure 43, the clamping and plug-in mechanism 41, and the COB transfer mechanism 5. If there is a test failure, the defective COB is unloaded to the defective tray device. The test of the next aging strip and the unloading and storage of the defective strip of the previous aging strip are carried out simultaneously. If the test of the next aging strip is completed first, it is necessary to wait for the unloading completion signal. If the previous aging bar is ready for unloading of defective materials, the station switching mechanism will transfer the previous aging bar from the plugging and unplugging station 62a to the intermediate station 61a. Furthermore, the aging bar loading and unloading mechanism 22 will control the transfer of the aging bar from the intermediate station 61a to the corresponding aging bar layer on the trolley. After the next aging bar is tested, the COB station switching mechanism 7 will transfer the aging bar from the testing station 63a to the plugging and unplugging station 62a. Similarly, the station transfer of all aging bars in the trolley will be completed, completing the initial post-aging test steps for all COBs.

[0073] As an optimization solution of the embodiment of the present invention, please refer to Figures 1 to 18 The number of COB stations set in the wire bonding material bin 32 is not greater than the number of stations in the aging strip trolley 21. For the COB automatic feeding test equipment, there are sufficient stations in the aging strip trolley 21. All COBs in the wire bonding material bin can be transferred to the aging trolley, and there will be no alarm prompts due to insufficient stations, ensuring the smooth operation of the entire bin. For COB post-aging test unloading, due to the front-end loading process, the actual number of COBs in the aging strip trolley is not greater than the number of COB stations in the wire bonding material bin, so there is no alarm prompts due to insufficient stations.

[0074] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A COB automatic testing device, characterized by: Including aging strip trolley, strip punching material bin, material taking device and testing mechanism, The aging strip trolley is used to store aging strips. The striping strip silo is used to store striping strips with COB. The material taking device is used to complete the transfer of COB between the punching strip and the aging strip. The testing mechanism is used to complete the testing of COB before aging and the testing of COB after aging.

2. The COB automatic test equipment according to claim 1, wherein: The material picking device includes a three-axis transport mechanism and a clamping and plugging mechanism. The clamping and plugging mechanism is arranged on the three-axis transport mechanism, and the clamping and plugging mechanism is used to grab the COB.

3. The COB automatic test equipment according to claim 2, wherein: The clamping and plugging mechanism includes a mechanical claw and an electric claw for controlling the opening and closing of the mechanical claw. The mechanical claw includes a positioning boss that can limit the positioning groove of the COB and a clamping surface that can clamp the side of the COB.

4. The COB automatic test equipment according to claim 2, wherein: The material picking device also includes a COB transfer mechanism, which includes a transfer mechanical clamp and a transfer air clamp for controlling the opening and closing of the transfer mechanical clamp. The transfer mechanical clamp includes a flat surface for the bottom surface of the COB to rest on and an inclined surface for pressing the top surface of the COB.

5. The COB automatic test equipment according to claim 1, wherein: It also includes a multi-station temporary storage device with multiple stations for placing aging strips. The multi-station temporary storage device includes three sets of guide rails. The three sets of guide rails are respectively an intermediate station, an insertion and removal station, and a test station. The intermediate station is opposite to the entrance and exit window of the aging strip trolley.

6. The COB automatic test equipment according to claim 5, wherein: It also includes a workstation switching mechanism for completing the transfer of the aging strips between each of the workstations. The workstation switching mechanism includes a screw module, a lifting cylinder and an aging strip air claw. The screw module is used to drive the aging strip air claw to move between multiple workstations of the multi-workstation temporary storage device. The lifting cylinder is used to lift the aging strip. The aging strip air claw is used to grab the aging strip lifted by the lifting cylinder.

7. The COB automatic test equipment according to claim 1, wherein: The testing mechanism includes a linear motion mechanism and a probe fixing seat. A plurality of test probes are fixed on the probe fixing seat. The linear motion mechanism is used to drive the probe fixing seat to move.

8. The COB automatic test equipment according to claim 1, wherein: It also includes an aging strip entry and exit mechanism for exporting or importing the aging strips in the aging strip trolley, and the aging strip entry and exit mechanism is docked with the multi-station temporary storage device.

9. The COB automatic test equipment according to claim 1, wherein: It also includes a code scanning detection device, which is used to identify the SN number on the COB, to determine whether there is a COB at each station of each stripe in the stripe material bin, to determine whether there is a COB at each station of each aging strip in the aging strip trolley, and to determine the correctness of the incoming material status.

10. A COB automatic testing method, characterized in that: The steps include: S1, pre-fill the aging strip trolley with aging strips, and fill the strip silo with COB strips; S2, taking out the aging strip from the aging strip trolley, and using the material taking device to transfer the COB on the punching line to the aging strip; S3, the COB on the aging strip is tested before aging by the testing mechanism, and if there is no problem, the aging strip is returned to the aging strip trolley; S4, performing aging operation on the aging strips in the aging strip trolley; S5, after the aging operation is completed, the aging strips in the aging strip trolley are taken out and the aging test is performed using the testing mechanism. If there is no problem, the COB on the aging strips is unloaded onto the punching line.

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