A memory stick detection and sorting apparatus

Abstract

The application discloses a memory stick detection sorting device and relates to the technical field of memory stick detection.The device comprises a machine body, a feeding and discharging module, a tray transfer module, a product transfer module, a photographing positioning module and a memory stick detection module.A working platform is arranged in the machine body, and a feeding station, a detection station and a discharging station are arranged on the working platform.The feeding and discharging module is arranged at the feeding station and the discharging station, the memory stick detection module is arranged at the detection station, the tray transfer module moves between the feeding station and the detection station and between the detection station and the discharging station, the product transfer module moves between the feeding station and the discharging station and is used for transferring memory sticks, and the photographing positioning module is arranged above the working platform and is electrically connected with the product transfer module and is used for photographing and positioning the tray and the product.The application improves the efficiency of memory stick detection, reduces labor cost, avoids misoperation caused by manual detection and improves the detection accuracy.

Description

Technical Field

[0001] This invention relates to the field of memory module testing technology, and in particular to a memory module testing and sorting device. Background Technology

[0002] In the field of semiconductor packaging and testing, memory modules, as core data storage components, require rigorous functional and aesthetic inspections before leaving the factory for quality control. However, currently, most memory module insertion and removal tests, gold finger inspections, and labeling processes still heavily rely on manual labor. Specifically, operators must repeatedly perform actions such as picking up the memory module, aligning it with the slot, applying force to insert it, pressing the latches, pulling it out, and visually comparing it.

[0003] This work mode has the following significant drawbacks: First, manual operation has a long cycle time and low work efficiency, making it difficult to match the output rate of upstream high-speed surface mount production lines; Second, the force and angle of manual insertion and removal are random, which can easily lead to scratches on the gold fingers of memory modules, damage to slots and sockets, or poor contact, resulting in false positives and false negatives, affecting product yield and reliability; Third, long-term monotonous and repetitive work can easily cause operator fatigue, further aggravating quality fluctuations and increasing the company's human resource training and labor costs.

[0004] In view of this, the purpose of the present invention is to provide a new technical solution to solve the existing technical problems. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention provides a memory module detection and sorting device, which solves the problem of low efficiency in the existing manual detection of memory modules.

[0006] The technical solution adopted by this invention to solve its technical problem is: A memory module detection and sorting device includes a body, a loading and unloading module, a material tray transfer module, a product transfer module, a photo positioning module, and a memory module detection module; The machine body is equipped with a working platform, and the working platform is provided with a loading station, an inspection station and a unloading station in sequence along the product flow direction; The loading and unloading modules are located at the loading and unloading stations, the memory module detection module is located at the detection station, and the tray transfer module reciprocates between the loading station and the detection station, and between the detection station and the unloading station, to transfer the tray. The product transfer module moves between the loading and unloading stations to transfer memory modules. The photo-taking and positioning module is located above the work platform and is electrically connected to the product transfer module to take photos and position the tray and the product.

[0007] In the above structure, the loading and unloading module includes a lifting drive assembly and a material cabinet that can be lifted and lowered on the machine body. The material cabinet has several partitions evenly arranged in the vertical direction. Each partition is movably connected to a material support for carrying a tray. The tray is used to carry memory modules. The lifting drive assembly is used to drive the material cabinet to lift and lower. Safety light curtains are installed on both the loading and unloading sides of the machine body facing the loading and unloading module.

[0008] In the above structure, the material tray transfer module includes a transfer mounting plate, a finger cylinder, guide bars, and a transfer drive assembly. The transfer mounting plate is slidably disposed on the working platform. The transfer drive assembly is connected to the transfer mounting plate and is used to drive the transfer mounting plate to slide. The finger cylinder is fixedly disposed on the transfer mounting plate, and the output shaft of the finger cylinder is fixedly connected to a clamping block. The material tray is provided with a clamping part for the clamping block to clamp on the side facing the material tray transfer module. The two guide bars are parallel to each other and extend in the sliding direction of the transfer mounting plate. The distance between the two guide bars is adapted to the size of the material tray, and the material tray can slide on the guide bars.

[0009] In the above structure, the material tray transfer module also includes a positioning plate and positioning pins. The positioning plate is fixedly set on the top of the finger cylinder, and the two positioning pins are fixedly set on the side of the positioning plate facing the material cabinet. The two positioning pins are located on opposite sides of the finger cylinder. The material tray has positioning through holes on both sides of the clamping part, and the positioning pins can be inserted into the positioning through holes.

[0010] In the above structure, the product transfer module includes a product transfer robot, an X-axis module, a Y-axis module, and a Z-axis module. The Y-axis module is connected to the machine body, the X-axis module is connected to the Y-axis module, the Z-axis module is connected to the X-axis module, and the product transfer robot is mounted on the Z-axis module.

[0011] In the above structure, the product transfer robot includes a gripper mounting frame and a main gripper assembly. The gripper mounting frame is connected to the Z-axis module. The main gripper assembly includes two main grippers disposed opposite to each other on the lower end face of the gripper mounting frame and a main gripper drive assembly disposed one-to-one with the main grippers. The main grippers are hinged to the gripper mounting frame. The main gripper drive assembly includes a first cylinder and a first return spring disposed on opposite sides of the main grippers. The first cylinder is fixedly connected to the gripper mounting frame, and the piston rod of the first cylinder can abut against the upper end of the main gripper. One end of the first return spring abuts against the main gripper mounting frame, and the other end abuts against the side of the upper end of the main gripper facing away from the first cylinder.

[0012] In the above structure, the product transfer robot also includes a secondary gripper assembly corresponding to the main gripper. The secondary gripper assembly includes two secondary grippers arranged opposite each other and a second drive assembly for driving the two secondary grippers to tension. The secondary gripper includes a sliding part and a gripper part disposed below the sliding part. The gripper mounting frame has a sliding groove, and the sliding part is slidably disposed in the sliding groove. The second drive assembly is disposed in the gripper mounting frame and can push the sliding part to slide in the sliding groove.

[0013] In the above structure, the second drive assembly includes a second cylinder, a wedge block, and a second return spring. The second cylinder is fixedly connected to the gripper mounting bracket. The wedge block is fixedly disposed on the piston rod of the second cylinder and located between the sliding portions of the two auxiliary grippers. The wedge block has drive ramps on its front and rear sides. The sliding portion has a sliding ramp that slides with the drive ramp. The second return spring is disposed between the sliding portion and the gripper mounting bracket.

[0014] In the above structure, the memory module testing module includes a memory module testing machine, a transport frame, a locking component, and a side stand. The memory module testing machine is disposed within the transport frame, the transport frame can slide vertically on the side stand, the side stand is fixedly disposed below the testing station, and the locking component is disposed on the work platform for locking the transport frame.

[0015] In the above structure, the locking assembly includes a locking cylinder and a locking block. The two locking cylinders are arranged opposite each other on both sides of the detection station. The locking block is fixedly arranged on the piston rod of the locking cylinder. The transport frame is provided with insertion holes on both sides, and the insertion holes are inserted into the locking block.

[0016] In the above structure, the work platform is also provided with a temporary storage station, which is equipped with a re-inspection tray and an NG tray. The re-inspection tray is used to hold products that fail the first inspection and need to be re-inspected, and the NG tray is used to hold products that fail the second inspection.

[0017] In the above structure, the photo positioning module includes an illumination source and a vision system. A first gantry frame is provided inside the machine body. The illumination source and the vision system are fixedly installed on the first gantry frame and located above the material tray transfer module. An ion fan is fixedly installed on the first gantry frame.

[0018] The beneficial effects of this invention are as follows: The memory module testing and sorting equipment provided by this invention integrates all memory module testing processes into a complete set of automated equipment. Under the action of the control unit, it realizes automatic feeding, testing, unloading, and sorting of memory modules. It can continuously, quickly, and independently complete all stages of memory module testing, and can accurately classify and collect qualified and unqualified memory modules. The staff only needs to perform simple operations such as changing the material tray, thereby greatly improving the efficiency of memory module testing, avoiding errors caused by manual testing, improving the accuracy of testing, and ensuring product quality. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the installation structure on the working platform of this invention; Figure 4 This is a schematic diagram of the connection structure of the loading and unloading module of the present invention; Figure 5 This is a schematic diagram of the connection structure of the camera positioning module of the present invention; Figure 6 This is a schematic diagram of the connection structure of the transfer module of the present invention; Figure 7 This is a schematic diagram showing the disassembled structure of the transfer robot part of the product of this invention; Figure 8 This is a schematic diagram of the connection structure of the material tray transfer module of the present invention; Figure 9 yes Figure 8 Enlarged diagram of section A in the middle; Figure 10 This is a schematic diagram of the connection structure of the memory module detection module of the present invention.

[0021] Figure label: 1. Machine body; 11. Base; 12. Cover; 13. Work platform; 131. Re-inspection tray; 132. NG tray; 14. Safety light curtain; 15. First gantry; 16. Second gantry; 17. Ionizing fan; 18. Main control unit; 2. Loading / unloading module; 21. Material cabinet; 211. Partition; 22. Lifting drive assembly; 23. Material tray; 231. Clamping notch; 232. Positioning through hole; 24. Loading position sensor; 3. Product transfer module; 31. Product transfer robot; 311. Gripper mounting frame; 312. Main gripper assembly; 3121. Main gripper; 3122. First cylinder; 3123. First return spring; 313. Secondary gripper assembly; 3131. Secondary gripper; 3132. Secondary cylinder; 3133. Secondary return spring; 3134. Wedge block; 314. Press-down unlocking assembly; 3141. Press-down cylinder; 3142. Soft pressure block; 32. X-axis module; 33. Y-axis module; 34. Z-axis module; 35. Laser fiber optic sensor; 4. Material tray transfer module; 41. Transfer mounting plate; 42. Finger cylinder; 421. Clamping block; 43. Guide bar; 44. Transfer drive assembly; 45. Positioning plate; 451. Positioning pin; 5. Memory module detection module; 51. Memory module detection machine; 52. Transport frame; 521. Connecting hole; 53. Locking component; 531. Locking cylinder; 532. Locking block; 54. Side stand; 55. Lifting component; 551. Lifting frame; 552. Lifting cylinder; 6. Image positioning module; 61. Vision system; 62. Illumination source; 63. Positioning sensor; 7. Memory module; 8. Material tray. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-10 The present invention will be further described below.

[0023] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0024] Example 1 Reference Figures 1 to 10This invention provides a memory module 7 testing and sorting device for testing memory modules 7 and sorting out defective and substandard products. It includes a main body 1, a loading / unloading module 2, a tray transfer module 4, a product transfer module 3, a photographic positioning module 6, and a memory module detection module 5. The main body 1 serves as the base of the device, supporting all components. The loading / unloading module 2 is located at the loading and unloading ends of the main body 1. The loading / unloading module 2 at the loading end provides trays 8 filled with memory modules 7 to be tested to the tray transfer module 4, and the loading / unloading module 2 at the unloading end receives trays 8 filled with tested memory modules 7. The tray transfer module 4 facilitates the transfer of trays 8. The product transfer module 3 facilitates the transfer of memory modules 7. The photographic positioning module 6 photographs and positions the trays 8 and the memory modules 7 within them. The memory module detection module 5 performs performance testing on the memory modules 7. The main body 1 also includes a main control unit for controlling the operation of each module.

[0025] The machine body 1 includes a base 11 and a cover 12, with the cover 12 covering the base 11 from top to bottom. The base 11 is equipped with a work platform 13, on which a loading station, an inspection station, and a unloading station are sequentially arranged along the product flow direction. Both the loading and unloading stations are equipped with loading / unloading modules 2, and the structures within these modules are mirror images of each other. A memory module inspection module 5 is located at the inspection station. Tray transfer modules 4 are located between the loading and inspection stations, and between the inspection and unloading stations; that is, tray transfer modules 4 are located on opposite sides of the inspection station, and the structures of the tray transfer modules 4 on both sides of the inspection station are mirror images of each other. The product transfer module 3 moves between the loading station and the unloading station to transfer the memory module 7; the photo positioning module 6 is set above the work platform 13 to take photos of the material tray 8 and the product and feed the relevant information back to the product transfer module 3, which then accurately grabs the product based on the position information.

[0026] The loading / unloading module 2 includes a material cabinet 21 and a lifting drive assembly 22. The material cabinet 21 is jacking up and down on the machine body 1. The lifting drive assembly 22 is connected to the machine body 1 and is used to drive the lifting action of the material cabinet 21. The following describes the loading / unloading module 2 set at the loading station in detail. Specifically, the machine base 11 is provided with cavities for installing the loading / unloading module 2 below the loading station and below the unloading station. A material plate is fixedly installed on the side wall of the cavity. A slide rail extending vertically is fixedly installed on the material plate. The material cabinet 21 is slidably connected to the slide rail. The lifting drive assembly 22 includes a loading motor, a lifting screw, and a screw nut. The loading motor is fixedly installed on the material plate. The lifting screw is fixedly connected to the output shaft of the loading motor. A fixing block is fixedly installed on the material plate. The two ends of the lifting screw are rotatably connected to the fixing block. The screw nut is sleeved on the lifting screw and can move along the lifting screw. The material cabinet 21 is fixedly connected to the screw nut. The feeding motor rotates in the forward / reverse direction, driving the lifting screw to rotate and causing the screw nut to move on the lifting screw, thereby realizing the lifting of the material cabinet 21. The material cabinet 21 has several partitions 211 evenly arranged in the vertical direction, and each partition 211 is movably equipped with a material support 23, which is used to support the material tray 8.

[0027] A loading position sensor 24 is installed at the loading station. The loading position sensor 24 is used to sense whether there is a material tray 8 at the loading station. The loading position sensor 24 is electrically connected to the lifting drive assembly 22.

[0028] Furthermore, the machine body 1 is fixedly connected with limiting bars located on opposite sides of the material cabinet 21. The limiting bars are used to prevent the upper material tray 8 from falling out. It should be noted that the loading and unloading module 2, which is set at the unloading station, is mirrored with reference to the above structure, and will not be described in detail here.

[0029] During operation, the operator places the trays 8 filled with memory modules 7 one by one onto the corresponding material holders 23. At this time, the material cabinet 21 is located above the loading station. During loading, the lifting drive assembly 22 drives the material cabinet 21 to descend. When the loading position sensor 24 senses that the bottom tray 8 has descended to the loading station, it sends a position signal to the lifting drive assembly 22, and the lifting drive assembly 22 stops descending. At this time, the tray transfer module 4 can transfer the tray 8 located at the loading station to the next station. When all the memory modules 7 in the tray 8 have been removed, the tray transfer module 4 sends the tray 8 back to the material cabinet 21. Then, the lifting drive assembly 22 drives the material cabinet 21 to descend another height, so that the second to last tray 8 descends to the loading station. The tray transfer module 4 moves again to transfer the second to last tray 8 to the next station until all the memory modules 7 have been removed, and then the tray 8 is sent back again. This process is repeated until all the material trays 8 on the material cabinet 21 are empty, at which point an empty tray alarm is sent, and the operator replenishes the material.

[0030] Furthermore, to ensure operational safety, safety light curtains 14 are installed on the side wall of the machine cover 12 near the loading station and the side wall near the unloading station. When the safety light curtain 14 senses an object, it sends a stop signal to the control unit to stop the equipment, thereby reducing the possibility of personal injury caused by operator error during production.

[0031] The material tray transfer module 4 includes a transfer mounting plate 41, a finger cylinder 42, guide bars 43, and a transfer drive assembly 44. The following detailed description uses the material tray transfer module 4, located between the loading station and the inspection station, as an example. The transfer mounting plate 41 is slidably mounted on the work platform 13. Specifically, a transfer slide rail is fixedly mounted on the work platform 13, extending from the loading station to the inspection station. The transfer mounting plate 41 is slidably connected to the transfer slide rail. The transfer drive assembly 44 is connected to the transfer mounting plate 41 to drive the transfer mounting plate 41 to slide along the transfer slide rail. Two guide bars 43 are located on opposite sides of the transfer slide rail, with the length direction of the guide bars 43 parallel to the extension direction of the transfer slide rail. The spacing between the two guide bars 43 is adapted to the size of the material tray 23. The finger cylinder 42 is fixedly mounted on the transfer mounting plate 41, and the output shaft of the finger cylinder 42 is set towards the loading station. Both output shafts of the finger cylinder 42 are fixedly equipped with clamping blocks 421. The material tray 23 has a clamping part for clamping by the clamping blocks 421 on the side facing the material tray transfer module 4.

[0032] In this embodiment, the clamping block 421 has an L-shaped structure, and the clamping part has symmetrically opened clamping notches 231. The clamping notches 231 are also L-shaped, and the opening size of the clamping notches 231 is large enough for the clamping block 421 to extend into. In use, the finger cylinder 42 drives the two clamping blocks 421 to open, and the transfer drive assembly 44 drives the transfer mounting plate 41 to move to one side of the material cabinet 21, so that the clamping block 421 extends into the clamping notch 231. Then, the finger cylinder 42 drives the two clamping blocks 421 to tighten, clamping the material tray 23. Then, the transfer drive assembly 44 drives the transfer mounting plate 41 to move towards the direction closer to the inspection station, and drives the material tray 23 and the material plate 8 to move towards the inspection station. During this process, the material tray 23 slides on the guide bar 43.

[0033] Furthermore, the material tray transfer module 4 also includes a positioning plate 45 and positioning pins 451. The positioning plate 45 is fixedly mounted on the top of the finger cylinder 42, and two positioning pins 451 are fixedly mounted on the side of the positioning plate 45 facing the material support 23. The material support 23 has two corresponding positioning through holes 232 on the side facing the clamping part. The positioning pins 451 can be inserted into the positioning through holes 232 one by one. During the process of the material tray transfer module 4 moving towards the material support 23, the positioning pins 451 are first inserted into the positioning through holes 232 to position the material support 23, so as to ensure that the clamping block 421 and the clamping notch 231 can be accurately aligned.

[0034] In this embodiment, the transfer drive assembly 44 includes a transfer drive motor, a drive pulley, a transmission pulley, and a transmission belt. The transfer drive motor is fixedly mounted on the working platform 13. The drive pulley is fixedly mounted on the output shaft of the transfer drive motor. The transmission pulley is mounted on the working platform 13 and located at the end of the flow path of the material tray transfer module 4. The transmission belt is connected end-to-end and sleeved around the outer circumference of the drive pulley and the transmission pulley, realizing the transmission connection between the transmission pulley and the drive pulley. A clamp is fixedly mounted on the transfer mounting plate 41, and the clamp holds the transmission belt. The transfer drive motor drives the drive pulley to rotate, thereby driving the transmission belt and realizing the drive of the transfer mounting plate 41. In other embodiments, the transfer drive assembly 44 may adopt other drive forms, which are not limited here.

[0035] It should be noted that the material transfer module 4, which is located between the inspection station and the unloading station, is set up in a mirror image of the above structure, and will not be described in detail here.

[0036] The photo positioning module 6 includes an illumination source 62 and a vision system 61, with the illumination source 62 and vision system 61 configured in a one-to-one correspondence. Photo positioning modules 6 are installed between the loading station and the inspection station, and between the inspection station and the unloading station. The photo positioning module 6 installed between the loading station and the inspection station is used to position the loading tray 8 and the products within it; the photo positioning module 6 installed between the inspection station and the unloading station is used to photograph the unloading tray 8 and the products within it. In this embodiment, a first gantry frame 15 is installed inside the machine body 1, located above the work platform 13. The photo positioning module 6 is fixedly installed on the first gantry frame 15, and is positioned above the tray transfer module 4.

[0037] Furthermore, the image positioning module 6 also includes a positioning sensor 63, which is mounted on the work platform 13, located below the vision system 61, and in the transmission path of the tray transfer module 4. The positioning sensor 63 is used to sense the tray 8, and is electrically connected to the vision system 61. When the tray transfer module 4 moves the tray 8 into the sensing range of the positioning sensor 63, the positioning sensor 63 sends a position signal to the vision system 61. The vision system 61 then performs image positioning to send the position information of the tray 8 and the product to the product transfer module 3.

[0038] Furthermore, an ion fan 17 is fixedly installed on the first gantry frame 15. The ion fan 17 is used to remove static electricity from the inside of the machine body 1 to prevent static pollution and damage.

[0039] A second gantry 16 is fixedly mounted on the work platform 13. The product transfer module 3 is mounted on the second gantry 16. The product transfer module 3 includes a product transfer robot 31, an X-axis module 32, a Y-axis module 33, and a Z-axis module 34. The Y-axis module 33 is mounted on the second gantry 16, the X-axis module 32 is mounted on the Y-axis module 33, the Z-axis module 34 is mounted on the X-axis module 32, and the product transfer robot 31 is mounted on the Z-axis module 34. The Z-axis module 34 is used to drive the product transfer robot 31 to move towards or away from the work platform 13 in the vertical direction. The X-axis module 32 and the Y-axis module 33 are used to move the transfer robot to any coordinate point on the work platform 13 between the loading station and the unloading station. The X-axis module 32, Y-axis module 33 and Z-axis module 34 work together to enable the product transfer robot 31 to pick up and put down materials at any point between the loading station and the unloading station.

[0040] In this embodiment, the X-axis module 32 and the Y-axis module 33 are linear slide modules, and the Z-axis module 34 is a motor lead screw and nut structure. The linear slide module and the motor lead screw and nut structure are configured according to existing technology and will not be described in detail here.

[0041] The product transfer robot 31 includes a gripper mounting frame 311, a main gripper assembly 312, secondary gripper assemblies 313, and a pressing unlocking assembly 314. The main gripper assembly 312 is located on the lower end face of the gripper mounting frame 311 and is used to grip the memory module 7. Two sets of secondary gripper assemblies 313 are located on both sides of the lower end face of the gripper mounting frame 311 and are used to clamp and position the memory module 7, keeping it upright so that the main gripper assembly 312 can grip it. The pressing unlocking assembly 314 is located on both sides of the gripper mounting frame 311 and is used to press down and unlock the latches on the memory module 7 testing machine.

[0042] The main gripper assembly 312 includes two main grippers 3121 disposed opposite to each other on the lower end face of the gripper mounting bracket 311, and a main gripper drive assembly corresponding to each main gripper 3121. The gripper drive assemblies on both sides are mirror images of each other and are disposed between the two main grippers 3121. A hinge shaft is connected to the middle of the main gripper 3121. The main gripper 3121 includes an abutment portion located above the hinge shaft and a clamping portion located below the hinge shaft. Both ends of the hinge shaft are connected and fixed to the gripper mounting bracket 311, and the clamping portion extends downward beyond the gripper mounting bracket 311. The main gripper drive assembly includes a first cylinder 3122 and a first return spring 3123. The first cylinder 3122 is fixedly mounted inside the gripper mounting bracket 311, and the piston rod of the first cylinder 3122 faces the abutment portion of the main gripper 3121. When the piston rod of the first cylinder 3122 extends, it can push the main gripper 3121 to rotate around the hinge axis. At this time, the gripping portions of the two main grippers 3121 deflect towards each other, thus clamping the memory module 7. The first return spring 3123 is located on the side of the main gripper 3121 facing away from the first cylinder 3122, and one end of the first return spring is connected to the gripper mounting bracket 311, while the other end abuts against the abutment portion of the main gripper 3121 facing away from the first cylinder 3122. When the first cylinder 3122 pushes the main claw 3121 to deflect, the first return spring 3123 is elastically compressed; when the piston rod of the first cylinder 3122 retracts, the elasticity of the first return spring 3123 is released, pushing the main claw 3121 to deflect in the opposite direction. At this time, the clamping parts of the two main claws 3121 deflect in a direction away from each other, and the memory stick 7 can be released.

[0043] Furthermore, each of the two main claws 3121 has a limiting groove on one side to accommodate the memory module 7, and the groove wall of the limiting groove has a guide arc surface inclined towards the limiting groove. The width of the limiting groove is adapted to the thickness of the memory module 7. By setting the limiting groove, the main claw 3121 can limit the memory module 7 during the clamping process, so as to reduce the possibility of the memory module 7 shaking and being damaged during the transportation process. The guide arc surface can guide the memory module 7 during the clamping process, so that it can be accurately locked into the limiting groove during the clamping process.

[0044] The secondary gripper assembly 313 is used to position the memory module 7. Each of the two main grippers has a corresponding secondary gripper assembly 313, and the two sets of secondary gripper assemblies 313 are positioned between the two main grippers 3121. Each secondary gripper assembly 313 includes two secondary grippers 3131 arranged opposite each other and a second drive assembly for tensioning the two secondary grippers 3131. Each secondary gripper 3131 includes a sliding portion and a gripper portion located below the sliding portion. The gripper mounting bracket 311 has a sliding groove, and the sliding portion is slidably connected within the sliding groove. A through hole is provided at the bottom of the sliding groove for the gripper portion to extend downwards outside the gripper mounting bracket 311. The second drive assembly is located within the gripper mounting bracket 311 and is used to drive the sliding portions of the two secondary grippers 3131 arranged opposite each other to slide in the sliding groove.

[0045] The second drive assembly includes a second cylinder 3132, a wedge block 3134, and a second return spring 3133. The second cylinder 3132 is fixedly mounted inside the gripper mounting bracket 311 and located below the first cylinder 3122. The wedge block 3134 is fixedly mounted on the piston rod of the second cylinder 3132 and located between the sliding portions of the two auxiliary grippers 3131. The wedge block 3134 has driving ramps on both its front and rear sides, with the driving ramps on both sides facing the sliding portions of the two auxiliary grippers 3131. The sliding portions have sliding ramps that slide in cooperation with the driving ramps. A second return spring 3133 is correspondingly connected to each of the auxiliary grippers 3131 on both sides. The second return spring 3133 is located between the sliding portion and the gripper mounting bracket 311, with one end connected to the interior of the gripper mounting bracket 311 and the other end connected to the sliding portion.

[0046] During operation, when the piston rod of the second cylinder 3132 extends, it drives the wedge block 3134 to move synchronously, that is, it drives the driving inclined surface to slide along the sliding inclined surface of the sliding part, thereby pushing the sliding parts on the front and rear sides to slide in opposite directions. The second return spring 3133 is in an elastic compressed state. During this process, the gripper parts on the front and rear sides move away from each other, that is, the secondary claw 3131 opens and releases the memory module 7. When the piston rod of the second cylinder 3132 retracts, it drives the wedge block 3134 to move synchronously. At this time, the wedge block 3134 retracts, and the elastic release of the second return spring 3133 drives the sliding inclined surface of the sliding part to slide along the driving inclined surface. During this process, the gripper parts on the front and rear sides move closer to each other, that is, the secondary claw 3131 tightens and can clamp the memory module 7.

[0047] In this embodiment, a set of secondary gripper assemblies 313 are provided on each of the two main grippers 3121. The secondary gripper assemblies 313 on both sides are composed of identical components and are arranged in a mirror image. In use, the second cylinders 3132 of the secondary gripper assemblies 313 on both sides operate synchronously to clamp the left and right ends of the memory module 7, thereby keeping the memory module 7 in an upright position. This ensures that the main grippers 3121 can accurately grip the memory module 7, further reducing the possibility of damaging the memory module 7.

[0048] The pressure-unlocking assembly 314 includes a pressure cylinder 3141 and a soft pressure block 3142. The pressure cylinder 3141 is fixedly connected to the gripper mounting bracket 311, and the soft pressure block 3142 is located below the pressure cylinder 3141 and connected to the piston rod of the pressure cylinder 3141. When the piston rod of the pressure cylinder 3141 extends, it drives the soft pressure block 3142 to descend, pressing against the latch on the memory module detector 51; when the piston rod of the pressure cylinder 3141 retracts, it drives the soft pressure block 3142 to rise. The soft pressure block 3142 is made of a flexible material, such as silicone or rubber.

[0049] Furthermore, a laser fiber optic sensor 35 for sensing the memory module 7 is provided on the bottom surface of the gripper mounting bracket 311. In this embodiment, laser fiber optic sensors 35 are provided on both the left and right sides of the bottom surface of the gripper mounting bracket 311. The laser fiber optic sensors 35 are used to sense the memory module 7, thereby enabling the product transfer robot 31 to accurately grasp the memory module 7. Since the thickness of the memory module 7 is only between 1-2mm, a high-precision (less than 0.2mm) laser fiber optic sensor 35 is used to sense the memory module 7 to ensure accuracy. The laser fiber optic sensors 35 on both the left and right sides can also detect whether the memory module 7 tilts during gripping.

[0050] The product transfer robot 31 is mounted on the Z-axis module 34. Specifically, the Z-axis module 34 has a transfer mounting plate that can be raised and lowered. A transfer cylinder is fixedly connected to the transfer mounting plate. The gripper mounting frame 311 is located below the transfer cylinder and is fixedly connected to the transfer cylinder. The transfer cylinder can drive the gripper mounting frame 311 to move up and down in the vertical direction.

[0051] The memory module testing module 5 is mounted on the base 11 and includes a memory module 7 tester, a transport frame 52, a locking component 53, and side stands 54. The memory module 7 tester is housed within the transport frame 52, which covers the memory module 7 tester from all sides. The transport frame 52 is vertically adjustable between the two side stands 54. The side stands 54 are connected to lifting components 55 for driving the transport frame 52 to rise. The lifting components 55 drive the transport frame 52, which carries the memory module 7 tester, to rise until the testing portion of the memory module 7 tester extends to the work platform 13. The locking components 53 are mounted on the work platform 13 to lock the transport frame 52, thus securing the memory module testing module 5 to the main body 1.

[0052] Specifically, the transport frame 52 and the side support frame 54 are both located below the work platform 13. The memory module 7 testing machine is located inside the base 11 and can be raised and lowered vertically to the testing station. The lifting assembly 55 includes a lifting cylinder 552 and a lifting frame 551. The lifting frame 551 is slidably connected to the side support frames 54 on both sides. The lifting cylinder 552 is fixedly located between the side support frames 54, and the piston rod of the lifting cylinder 552 is connected and fixedly connected to the lifting frame 551. In this embodiment, slide rails extending vertically are fixedly provided on opposite sides of the side support frames 54. A lifting slider is fixedly provided on the side of the lifting frame 551 facing the slide rail, and the lifting slider is slidably connected to the slide rail. When the piston rod of the lifting cylinder 552 extends, it drives the lifting frame 551 to slide upward on the side support frame 54; when the piston rod of the lifting cylinder 552 retracts, it drives the lifting frame 551 to slide downward on the side support plate. Multiple positioning rods are fixedly connected to the two sides of the transport frame 52. The lifting side plate has positioning notches that correspond to the positioning rods. During the lifting process, the positioning notches of the lifting frame 551 engage with the positioning rods, causing the transport frame 52 to rise synchronously, thereby realizing the adjustment of the installation height of the memory module 7 tester.

[0053] Furthermore, a lifting position sensor is fixedly installed on the side of the lifting frame 551 near the positioning rod. The lifting position sensor is electrically connected to the lifting cylinder 552 to send a position signal to the lifting cylinder 552 to ensure that the positioning notch and the positioning rod are accurately engaged.

[0054] Furthermore, the transport frame 52 has insertion holes 521 on opposite sides. The locking assembly 53 includes a locking block 532 and a locking cylinder 531. The two sets of locking assemblies 53 are arranged opposite each other on the work platform 13 and located on opposite sides of the testing station. The locking assemblies 53 correspond one-to-one with the insertion holes 521. The locking cylinder 531 is fixedly mounted on the work platform 13. The locking block 532 is located on the side of the locking cylinder 531 closest to the testing station and is connected and fixed to the piston rod of the locking cylinder 531. When the lifting assembly 55 drives the memory module 7 testing machine to rise to a predetermined height, the piston rod of the locking cylinder 531 extends and drives the locking block 532 to insert into the insertion hole 521, thereby fixing the transport frame 52 and connecting and fixing the memory module 7 testing machine to the memory module 7 testing production line. Once the transport frame 52 is locked in place by the locking component 53, the lifting component 55 can be driven to move, causing the lifting frame 551 to descend and separate from the transport frame 52. At this point, the memory module 7 tester is suspended on the base 11, thus completing the installation of the memory module 7 tester.

[0055] Furthermore, the work platform 13 is also equipped with a temporary storage station, which has a re-inspection disk and an NG disk. In this embodiment, the re-inspection disk and the NG disk are respectively located on the front and rear sides of the memory module testing machine 51. The re-inspection disk is used to hold products that fail the first test, and the NG disk is used to hold products that fail the second test. Multiple memory modules 7 can be placed alternately on both the re-inspection disk and the NG disk.

[0056] The implementation steps of the memory module 7 testing and sorting device in Embodiment 1 of the present invention include: Step 1: Manually place the trays 8 filled with memory modules 7 one by one onto the loading cabinet 21; place the empty trays 8 one by one onto the unloading cabinet 21.

[0057] Step two: On the loading side, the material cabinet 21 lowers one of the full material trays 8 to the loading station; on the unloading side, the material cabinet 21 lowers one of the empty material trays 8 to the unloading station; the material tray transfer module 4 transfers the full material tray 8 to the side closer to the inspection station. At this time, the photo positioning system takes a picture of the full material tray 8 to locate the position of the material tray 8 and the memory module 7 products inside the material tray 8; at the same time, the material tray transfer module 4 transfers the empty material tray 8 to the side closer to the inspection station. At this time, the photo positioning system takes a picture of the empty material tray 8 to locate the position of the empty material tray 8.

[0058] Step 3: The product transfer robot 31 moves to above the memory module 7 according to the position information, and then descends to pick up the memory module 7. At this time, the barcode scanner scans the memory module 7 and records the product information. Step four: The product transfer robot 31 inserts the memory module 7 into the detection channel of the memory module detection machine 51 for detection. Products that pass the first detection are transferred by the product transfer robot 31 to the empty material tray 8. This process is repeated until the material tray 8 near the loading station is empty or the material tray 8 near the unloading station is full. Then, the material tray transfer module 4 sends the empty material tray 8 back to the loading station or the full material tray 8 back to the unloading station; the material cabinet 21 descends one height.

[0059] Step 5: Repeat steps 2 to 4 until all trays 8 of the feeding side cabinet 21 are empty and all trays of the unloading side cabinet 21 are empty. Then, issue an empty tray alarm / full tray alarm and manually replenish and unload materials.

[0060] Step six: In step four, products that fail the first inspection are transferred to the re-inspection tray by the product transfer robot 31 for re-inspection; products that pass the second inspection are transferred to the unloading side; if the product still fails the second inspection, it is transferred to the NG tray; when the NG tray is full, a full tray alarm is issued and the tray is manually changed.

[0061] Example 2 The difference between Example 2 and Example 1 is that the memory module testing machine 51 is equipped with four testing channels, which can test four products simultaneously. Example 2 is equipped with two loading stations and two unloading stations. Correspondingly, a set of material tray transfer modules 4 is set between each loading station and the testing station; a set of material tray transfer modules 4 is set between each testing channel and the unloading station; the product transfer module 3 is equipped with two sets of independently movable product transfer robots 31; and a set of photo positioning modules 6 is set for each loading station and unloading station.

[0062] The implementation steps of the memory module 7 testing and sorting device in Embodiment 2 of the present invention include: Step 1: Manually place the trays 8 filled with memory modules 7 one by one onto the two material cabinets 21 on the loading side; place the empty trays 8 one by one onto the two material cabinets 21 on the unloading side.

[0063] Step two: On the loading side, the material cabinet 21 lowers one of the full material trays 8 to the loading station; on the unloading side, the material cabinet 21 lowers one of the empty material trays 8 to the unloading station; the material tray transfer module 4 transfers the full material tray 8 to the side closer to the inspection station. At this time, the photo positioning system takes a picture of the full material tray 8 to locate the position of the material tray 8 and the memory module 7 products inside the material tray 8; at the same time, the material tray transfer module 4 transfers the empty material tray 8 to the side closer to the inspection station. At this time, the photo positioning system takes a picture of the empty material tray 8 to locate the position of the empty material tray 8.

[0064] Step 3: One of the product transfer robots 31 moves to above the memory stick 7 according to the position information, and then descends to pick up the memory stick 7. At this time, the barcode scanner scans the memory stick 7 and records the product information. Meanwhile, another product transfer robot 31 can transfer the products that have been inspected on the memory module inspection machine 51 to the empty material tray 8; that is, one of the two product transfer robots 31 performs the picking action and the other performs the unloading action.

[0065] Step four: The product transfer robot 31 inserts the memory module 7 into the detection channel of the memory module detection machine 51 for detection. Products that pass the first detection are transferred by the product transfer robot 31 to the empty material tray 8. This process is repeated until the material tray 8 near the loading station is empty or the material tray 8 near the unloading station is full. Then, the material tray transfer module 4 sends the empty material tray 8 back to the loading station or the full material tray 8 back to the unloading station; the material cabinet 21 descends one height.

[0066] Step 5: Repeat steps 2 to 4 until all the trays 8 of the material cabinet 21 at one of the material loading stations are empty. Then, start taking the full trays 8 of the material cabinet 21 at the other material loading station. At the same time, an empty tray alarm is issued, and the empty trays of the material cabinet 21 at the material loading station are replenished manually. Alternatively, if all the trays 21 on one of the unloading stations are empty, then the empty trays 8 on the other unloading station will be used, and at the same time a full tray alarm will be issued, and the unloading station will manually unload the trays 21 that are full.

[0067] Step six: In step four, products that fail the first inspection are transferred to the re-inspection tray by the product transfer robot 31 for re-inspection. During the second inspection, the inspection channel is changed to re-inspect the products that fail the first inspection. Products that pass the second inspection are transferred to the unloading side. If the product still fails the second inspection, it is transferred to the NG tray. When the NG tray is full, a full tray alarm is issued, and the tray is manually changed.

[0068] The above is a detailed description of the preferred embodiments of the present invention. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A memory module testing and sorting device, characterized in that: It includes the machine body, loading and unloading module, material tray transfer module, product transfer module, photo positioning module, and memory module detection module; The machine body is equipped with a working platform, and the working platform is provided with a loading station, an inspection station and a unloading station in sequence along the product flow direction; The loading and unloading modules are located at the loading and unloading stations, the memory module detection module is located at the detection station, and the tray transfer module reciprocates between the loading station and the detection station, and between the detection station and the unloading station, to transfer the tray. The product transfer module moves between the loading and unloading stations to transfer memory modules. The photo-taking and positioning module is located above the work platform and is electrically connected to the product transfer module to take photos and position the tray and the product.

2. The memory module testing and sorting device according to claim 1, characterized in that: The loading and unloading module includes a lifting drive assembly and a material cabinet that can be lifted and lowered on the machine body. The material cabinet has several compartments evenly arranged in the vertical direction. Each compartment is movably connected to a material support for carrying a tray. The tray is used to carry memory modules. The lifting drive assembly is used to drive the material cabinet to lift and lower. Safety light curtains are installed on both the loading and unloading sides of the machine body facing the loading and unloading module.

3. The memory module testing and sorting device according to claim 2, characterized in that: The material tray transfer module includes a transfer mounting plate, a finger cylinder, guide rails, and a transfer drive assembly. The transfer mounting plate is slidably disposed on the working platform. The transfer drive assembly is connected to the transfer mounting plate and is used to drive the transfer mounting plate to slide. The finger cylinder is fixedly disposed on the transfer mounting plate, and the output shaft of the finger cylinder is fixedly connected to a clamping block. The material tray is provided with a clamping part for the clamping block to clamp on the side facing the material tray transfer module. The two guide rails are parallel to each other and extend in the sliding direction of the transfer mounting plate. The distance between the two guide rails is adapted to the size of the material tray, and the material tray can slide on the guide rails.

4. The memory module testing and sorting device according to claim 3, characterized in that: The material tray transfer module also includes a positioning plate and positioning pins. The positioning plate is fixedly set on the top of the finger cylinder, and the two positioning pins are fixedly set on the side of the positioning plate facing the material cabinet. The two positioning pins are located on opposite sides of the finger cylinder. The material tray has positioning through holes on both sides of the clamping part, and the positioning pins can be inserted into the positioning through holes.

5. A memory module testing and sorting device according to claim 1, characterized in that: The product transfer module includes a product transfer robot, an X-axis module, a Y-axis module, and a Z-axis module. The Y-axis module is connected to the machine body, the X-axis module is connected to the Y-axis module, and the Z-axis module is connected to the X-axis module. The product transfer robot is mounted on the Z-axis module.

6. A memory module testing and sorting device according to claim 5, characterized in that: The product transfer robot includes a gripper mounting frame and a main gripper assembly. The gripper mounting frame is connected to the Z-axis module. The main gripper assembly includes two main grippers disposed opposite to each other on the lower end face of the gripper mounting frame and a main gripper drive assembly that corresponds to each main gripper. The main grippers are hinged to the gripper mounting frame. The main gripper drive assembly includes a first cylinder and a first return spring disposed on opposite sides of the main grippers. The first cylinder is fixedly connected to the gripper mounting frame, and the piston rod of the first cylinder can abut against the upper end of the main gripper. One end of the first return spring abuts against the main gripper mounting frame, and the other end abuts against the upper end of the main gripper on the side opposite to the first cylinder.

7. A memory module testing and sorting device according to claim 6, characterized in that: The product transfer robot also includes a secondary gripper assembly corresponding to the main gripper. The secondary gripper assembly includes two secondary grippers arranged opposite each other and a second drive assembly for driving the two secondary grippers to tension. Each secondary gripper includes a sliding part and a gripper part disposed below the sliding part. The gripper mounting frame has a sliding groove, and the sliding part is slidably disposed in the sliding groove. The second drive assembly is disposed in the gripper mounting frame and can push the sliding part to slide in the sliding groove.

8. A memory module testing and sorting device according to claim 7, characterized in that: The second drive assembly includes a second cylinder, a wedge block, and a second return spring. The second cylinder is fixedly connected to the gripper mounting bracket. The wedge block is fixedly disposed on the piston rod of the second cylinder and located between the sliding portions of the two auxiliary grippers. The wedge block has drive ramps on its front and rear sides. The sliding portion has a sliding ramp that slides with the drive ramp. The second return spring is disposed between the sliding portion and the gripper mounting bracket.

9. A memory module testing and sorting device according to claim 1, characterized in that: The memory module testing module includes a memory module testing machine, a transport frame, a locking component, and a side stand. The memory module testing machine is disposed within the transport frame, and the transport frame can slide vertically on the side stand. The side stand is fixedly disposed below the testing station. The locking component is disposed on the work platform and is used to lock the transport frame.

10. A memory module testing and sorting device according to claim 9, characterized in that: The locking assembly includes a locking cylinder and a locking block. The two locking cylinders are arranged opposite each other on both sides of the detection station. The locking block is fixedly installed on the piston rod of the locking cylinder. The transport frame is provided with insertion holes on opposite sides, and the insertion holes are inserted into the locking block.

11. A memory module testing and sorting device according to claim 1, characterized in that: The work platform is also equipped with a temporary storage station, which has a re-inspection tray and an NG tray. The re-inspection tray is used to hold products that fail the first inspection and need to be re-inspected, and the NG tray is used to hold products that fail the second inspection.

12. A memory module testing and sorting device according to claim 1, characterized in that: The photo positioning module includes a lighting source and a vision system. A first gantry frame is provided inside the machine body. The lighting source and the vision system are fixedly installed on the first gantry frame and located above the material tray transfer module. An ion fan is fixedly installed on the first gantry frame.

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