Semiconductor chip test two-dimensional code scanning recognition device and operation method

Abstract

The invention provides a semiconductor chip test two-dimensional code scanning recognition device and an operation method, and belongs to the technical field of semiconductor test tracing abnormity positioning. Comprising a bearing platform, supporting modules are installed on the left side and the right side of the lower end of the bearing platform through bolts, a U-shaped frame is arranged above the bearing platform, a connecting sleeve is installed at the lower end of the U-shaped frame in a clamped mode, a magnetic suspension module is installed below the connecting sleeve in an embedded mode, and displacement modules are installed on the left side and the right side of the upper end of the U-shaped frame through bolts; and a clamping module is mounted above the middle part of the outer end of the displacement module through a bolt. The permanent magnets arranged in the magnetic suspension module are matched with the opposite permanent magnets arranged in the magnetic cavity at the lower end of the frame, under the action of the upper and lower groups of permanent magnets, a stable suspension support is formed between the U-shaped frame and the lower bearing platform, vibration isolation is achieved, then flexible connection is formed at the gap between the U-shaped frame and the lower bearing platform through the arranged connecting sleeve, and the vibration isolation effect is achieved. The stability of the longitudinal angle is improved, and the influence of conveying vibration on recognition scanning work is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of semiconductor test abnormality tracing positioning, in particular to a semiconductor chip test two-dimensional code scanning and identifying device and operation method. BACKGROUND

[0002] The demand for chip grading in the current semiconductor industry is increasingly precise, the test project is complex and the failure reasons are various, which has become an important feature in the test and sorting process. How to accurately identify, classify, and trace the test abnormality according to the machine operation record is the current test difficulty. The existing sorting machine can only distinguish the chips to be tested by batch, and the abnormality tracing is often analyzed from the dimensions of operators, materials, equipment, methods, and environment, which is difficult to accurately locate and has the problems of long time consumption and insufficient accuracy. Therefore, a semiconductor chip test two-dimensional code scanning and identifying device is needed to scan and identify the two-dimensional code on the chip for later tracing.

[0003] At present, the existing semiconductor chip test two-dimensional code scanning and identifying device, such as the semiconductor chip two-dimensional code acquisition equipment disclosed in Chinese Patent Publication No. CN223155485U, although the feeding mechanism, scanning mechanism, discharging mechanism, and feeding mechanism are set to scan multiple chips on the tray, greatly improving the work efficiency; in addition, the first positioning assembly and the second positioning assembly are set to be suitable for a tray with a longer length, improving the work efficiency; only one camera is needed for scanning, effectively saving costs, but in the actual application process, there are still problems such as the following: first, the conveying module and the identification scanning module are installed on one workbench, which cannot avoid the vibration generated during the operation of the conveying module from being transmitted to the identification scanning module, affecting the identification scanning module, causing the image captured during the identification scanning process to be slightly out of focus, the two-dimensional code is not in the lens depth of field or the field of view center, causing the decoding software to have difficulty processing, and only a single camera is used for identification scanning, and once the chip is displaced due to vibration during the conveying process, it will also affect the identification scanning efficiency and accuracy of the two-dimensional code. Therefore, in order to optimize or improve the above-mentioned existing problems, the present application provides a semiconductor chip test two-dimensional code scanning and identifying device and operation method to meet the needs. SUMMARY

[0004] (I) Technical problems solved In view of the deficiencies of the prior art, the present application provides a semiconductor chip test two-dimensional code scanning and identifying device and operation method, which solves the problem that the conveying module and the identification scanning module of the existing two-dimensional code identification scanning device are installed on one workbench, which cannot avoid the vibration generated during the operation of the conveying module from affecting the identification scanning module, and the single camera identification scanning affects the identification scanning efficiency and accuracy of the two-dimensional code.

[0005] (II) Technical Solution To solve the above-mentioned technical problems, the present invention provides the following technical solution: A semiconductor chip testing QR code scanning and recognition device includes a platform, with support modules bolted to the left and right sides of the lower end of the platform. A U-shaped frame is provided above the platform, with a connecting sleeve clamped at the lower end of the U-shaped frame. A magnetic levitation module is embedded below the connecting sleeve. Displacement modules are bolted to the left and right sides of the upper end of the U-shaped frame, and a clamping module is bolted to the upper middle part of the outer end of the displacement module. The clamping modules are symmetrically distributed from left to right. A crossbar is sleeved in the middle of the clamping module. A transverse module is clamped to the left side of the lower end of the crossbar, and a recognition camera is slidably installed inside the transverse module. A vertical module is clamped to the right side of the lower end of the crossbar, and a scanning camera is slidably installed inside the lower end of the vertical module. Light source plates are provided on the left and right sides inside the U-shaped frame.

[0006] Preferably, the support platform includes a platform panel, an embedding groove, and reinforcing holes. The embedding groove is provided on the inner side of the upper end of the platform panel, and reinforcing holes are provided on the left and right sides of the upper end of the embedding groove.

[0007] Preferably, the support module includes a U-shaped rod, a vertical rod, a socket, and a pin. The vertical rod is sleeved on the inner side of the upper end of the U-shaped rod, and the left and right sides of the outer end of the vertical rod are provided with sockets. The internal threads of the sockets are used to install pins.

[0008] Preferably, the U-shaped frame includes a frame, a feeding port, a bottom groove, a top groove, and a magnetic cavity. The feeding port is provided in the middle of the left and right sides of the outer end of the frame, the bottom groove is provided in the left and right sides of the lower end of the frame, the top groove is provided in the left and right sides of the upper end of the frame, and the magnetic cavity is provided above the bottom groove.

[0009] Preferably, the magnetic levitation module includes a base, a permanent magnet, a buckle frame, a support groove, and a rectangular groove. The permanent magnet is embedded in the inner side of the upper end of the base, the buckle frame is sleeved on the upper end of the permanent magnet, the support groove is formed on the inner side of the upper end of the base, and the rectangular groove is formed on the inner side of the upper end of the buckle frame.

[0010] Preferably, the displacement module includes a mounting sleeve, a limiting sleeve, a lead screw, a displacement block, and a displacement motor. The front side of the mounting sleeve is provided with a limiting sleeve. The lead screw is sleeved and installed in the middle of the inner side of the mounting sleeve and the limiting sleeve. The displacement block is sleeved and installed in the middle of the outer end of the lead screw. The displacement motor is bolted to the middle of the rear end of the mounting sleeve.

[0011] Preferably, the clamping module includes a clamping block, a clamping pin, a pad, and reinforcing screws. The clamping pin is threadedly installed in the middle of the upper end of the clamping block, the pad is provided at the lower end of the clamping block, and reinforcing screws are threadedly installed on the left and right sides of the upper end of the clamping block.

[0012] Preferably, the transverse module includes a Y-shaped plate, a clamping groove, a clamping pin, a transverse groove, and an adjusting rod. The clamping groove is provided on the inner side of the upper end of the Y-shaped plate, and a clamping pin is installed through the upper part of the outer end of the Y-shaped plate. A transverse groove is provided on the inner side of the lower end of the Y-shaped plate, and adjusting rods are sleeved on the front and rear sides of the lower end of the Y-shaped plate.

[0013] Preferably, the longitudinal module includes a longitudinal clamping plate, an inner groove rod, a longitudinal motor, a fine-tuning rod, and a signal controller. The inner groove rod is provided on the front and rear sides of the lower end of the longitudinal clamping plate. The longitudinal motor is screwed on the right side of the outer end of the inner groove rod. The signal controller is provided on the right side of the upper end of the inner groove rod.

[0014] A method for operating a semiconductor chip testing QR code scanning and recognition device includes the following steps: Step 1: First, place the chip tray on the conveyor belt and convey it to the inside of the U-shaped frame in the conveying direction. The synchronous controller connected to the middle of the rear of the two sets of displacement modules drives the two sets of displacement modules to start working. The displacement motor drives the lead screw to rotate, so that the displacement block moves to the middle, and then drives the crossbar to be in a straight line with the conveyor belt passing below. Step 2: When the chip tray passes through the feed port and enters the frame, the recognition camera installed on the left side below the crossbar starts to work, pre-identifies the chips inside the chip tray, ensures that there is no displacement of the chips in the tray, and records and transmits the data. Step 3: After the information of chip displacement in the tray is recorded and transmitted, it will be transmitted wirelessly to the vertical module. The signal controller will process the information and control the vertical motor to rotate the fine adjustment rod. This will cause the scanning camera, which is threadedly connected to the fine adjustment rod, to move at an angle. The scanning camera can adjust its position according to the image captured by the front recognition camera, so that the scanning camera always maintains a perpendicular angle with the chip QR code passing below, and keeps the QR code in the center of the field of view and within the depth of field. Step 4: When the identification device is working, the magnetic suspension module is embedded in the inner side of the upper end of the support platform through the embedding groove. Then, according to the permanent magnets arranged inside the magnetic suspension module and the opposite permanent magnets arranged inside the magnetic cavity at the lower end of the frame, the U-shaped frame and the lower support platform are suspended and supported to achieve vibration isolation. Then, the connecting sleeve is used to achieve a soft connection between the two to improve the stability of the longitudinal angle. Step 5: Using the set support module, when it is necessary to adjust the height of the upper support platform, simply pull out the pins that fix the U-shaped rod and the upright from the socket. The support platform can then be lifted from both sides, causing the upright to extend upwards on the inside of the U-shaped rod. After reaching the appropriate height, insert the pins from the socket, passing through the inside of the upright and extending out from the other side of the U-shaped rod. Tighten the pins with nuts to fix the U-shaped rod and the upright, providing stable support for the support platform.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, by using permanent magnets set inside the magnetic suspension module and opposite permanent magnets arranged inside the magnetic cavity at the lower end of the frame, a stable suspension support is formed between the U-shaped frame and the lower support under the action of the two sets of permanent magnets, thus achieving vibration isolation. Then, a soft connection is formed at the gap between the two by the set connecting sleeve, which improves the stability of the longitudinal angle and reduces the impact of transport vibration on the recognition and scanning operation.

[0016] The adjustable rod allows the recognition camera, installed inside the horizontal slot, to slide, adjusting the distance between the left and right sections based on the actual conveying speed. Simultaneously, the camera, connected to an external control computer, pre-scans the passing chips to ensure no displacement occurs within the tray, recording the captured images and data. This data is then sent to the external control computer for processing. The processed information is wirelessly transmitted to the vertical module, where a signal controller processes it and controls the vertical motor to rotate the fine-tuning rod. This causes the scanning camera, threaded onto the rod, to shift its position, allowing it to adjust based on the image captured by the front recognition camera. This ensures the camera maintains a perpendicular angle to the passing chip QR code, keeping it centered and within the depth of field, thus improving the efficiency and accuracy of QR code recognition.

[0017] In summary, the present invention effectively isolates the vibration caused by the conveying structure, reduces the impact of vibration on the recognition and scanning structure, and ensures that the passing chip QR code always maintains a perpendicular shooting angle with the recognition and scanning structure, keeping the QR code always in the center of the field of view and within the depth of field, thereby improving the recognition and scanning efficiency and accuracy of the chip QR code. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an exploded three-dimensional structural diagram of the support platform, connecting sleeve, and magnetic suspension module of the present invention; Figure 3This is an exploded view of the three-dimensional structure of the support platform and support module of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the U-shaped frame of the present invention; Figure 5 This is an exploded view of the three-dimensional structure of the magnetic levitation module of the present invention; Figure 6 This is a schematic diagram of the three-dimensional assembly of the displacement module, holding module, crossbar, lateral module, recognition camera, longitudinal module and scanning camera of the present invention. Figure 7 This is a schematic diagram of the three-dimensional structure assembly of the card-holding module of the present invention; Figure 8 This is a schematic diagram of the assembly of the clamping module and the crossbar three-dimensional structure of the present invention; Figure 9 This is a schematic diagram of the three-dimensional assembly of the crossbar, horizontal module, recognition camera, vertical module and scanning camera of the present invention; Figure 10 This is a schematic diagram of the three-dimensional assembly of the horizontal module of the present invention; Figure 11 This is a schematic diagram of the three-dimensional structure of the camera in this invention; Figure 12 This is a schematic diagram of the three-dimensional assembly of the longitudinal module and the scanning camera of the present invention; Figure 13 This is a schematic diagram of the three-dimensional structure of the scanning camera of the present invention.

[0019] [Figure Labels] 1. Foundation; 2. Support module; 3. U-shaped frame; 4. Connecting sleeve; 5. Magnetic suspension module; 6. Displacement module; 7. Holding module; 8. Crossbar; 9. Horizontal module; 10. Recognition camera; 11. Vertical module; 12. Scanning camera; 13. Light source board; 101. Tabletop; 102. Embedded groove; 103. Reinforcing hole; 201. U-shaped rod; 202. Upright; 203. Insertion hole; 204. Pin; 301. Frame; 302. Feed port; 303. Bottom groove; 304. Top groove; 305. Magnetic cavity; 501. Base support; 50 2. Permanent magnet; 503. Frame; 504. Slot; 505. Rectangular slot; 601. Mounting sleeve; 602. Limiting sleeve; 603. Lead screw; 604. Displacement block; 605. Displacement motor; 701. Clamping block; 702. Clamping pin; 703. Pad; 704. Reinforcing screw; 901. Y-shaped plate; 902. Clamping slot; 903. Clamping pin; 904. Transverse slot; 905. Adjusting rod; 111. Longitudinal clamping plate; 112. Inner groove rod; 113. Longitudinal motor; 114. Fine-tuning rod; 115. Signal controller.

[0020] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0021] The following is a detailed description of a semiconductor chip testing QR code scanning and recognition device and its operation method provided by the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0022] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0023] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0024] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0025] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0026] like Figures 1 to 13 As shown, an embodiment of the present invention provides a semiconductor chip testing QR code scanning and recognition device, including a base 1, support modules 2 bolted to the left and right sides of the lower end of the base 1, a U-shaped frame 3 above the base 1, a connecting sleeve 4 clamped to the lower end of the U-shaped frame 3, a magnetic levitation module 5 embedded below the connecting sleeve 4, displacement modules 6 bolted to the left and right sides of the upper end of the U-shaped frame 3, a clamping module 7 bolted to the upper middle part of the outer end of the displacement module 6, the clamping modules 7 are symmetrically distributed left and right, a crossbar 8 is sleeved to the middle of the clamping module 7, a transverse module 9 is clamped to the left side of the lower end of the crossbar 8, a recognition camera 10 is slidably installed inside the transverse module 9, a longitudinal module 11 is clamped to the right side of the lower end of the crossbar 8, a scanning camera 12 is slidably installed inside the lower end of the longitudinal module 11, and light source plates 13 are provided on the left and right sides inside the U-shaped frame 3.

[0027] The contact ends of the support platform 1 and the support module 2 are reinforced with bolts. Two sets of support modules 2 are symmetrically distributed on the left and right sides. The U-shaped frame 3 is an integral structure. The U-shaped frame 3 and the support platform 1 are flexibly connected by a connecting sleeve 4. The connecting sleeve 4 is made entirely of rubber and has a certain degree of rigidity. The lower end of the connecting sleeve 4 is reinforced with the contact end of the support platform 1 with bolts, while the upper end of the connecting sleeve 4 is clamped to the lower end of the U-shaped frame 3. The magnetic levitation module 5 is embedded inside the upper end of the support platform 1. The permanent magnets 502 laid inside the magnetic levitation module 5 are compatible with the permanent magnets 502 laid in the magnetic cavity 305 on the lower end of the U-shaped frame 3, forming a static and constant magnetic field. Two sets of displacement modules 6 and clamping modules 7 are symmetrically distributed front and back. The displacement modules 6 are reinforced with bolts on both sides of the upper end of the U-shaped frame 3, while the contact ends of the clamping modules 7 and the displacement modules 6 are reinforced with bolts. The two ends of the crossbar 8 pass through the symmetrically distributed clamping modules 7 and extend to the outside. The contact ends of the crossbar 8 and the two sets of clamping modules 7 are limited and fixed by clamping pins 702. The transverse module 9 and the longitudinal module 11 are reinforced together with the crossbar 8 by clamping pins 903. The identification camera 10 can be connected to an external control computer. The identification camera 10 consists of two parts, left and right. The left and right parts can slide and adjust inside the lower end of the transverse module 9. The scanning camera 12 is embedded in the longitudinal module 11 and can slide inside the longitudinal module 11. The light source plate 13 is reinforced to the front and rear sides inside the U-shaped frame 3 by bolts. The installation angle of the light source plate 13 is inclined, facing the conveyor belt passing through the U-shaped frame 3. The inclination angle of the light source plate 13 can be changed according to the actual situation.

[0028] The U-shaped frame 3, with symmetrically arranged feeding ports 302 on its front and rear sides, allows the conveyor belt to be arranged along these ports. The support structure of the conveyor belt is independent and does not contact the support platform 1. Furthermore, the conveying end passing through the feeding port 302 does not contact the U-shaped frame 3, leaving a gap between them. When operation begins, the chip tray is placed on the conveyor belt and conveyed towards the inside of the U-shaped frame 3. A synchronous controller connected at the rear center of the two sets of displacement modules 6 drives the two sets of displacement modules 6 to operate, causing the clamping module 7 to move. When the clamping module 7 moves, the crossbar 8 also moves synchronously. The crossbar 8 stops when it is aligned with the conveyor belt below. Afterward, the chip tray passes through the feeding port 302 and enters the frame 301, positioned on the crossbar 8. The recognition camera 10 installed on the lower left starts working, pre-identifying the chips inside the passing chip tray to ensure that there is no displacement of the chips in the tray, and records and transmits the information. Then, the recorded information is transmitted wirelessly to the vertical module 11, where the signal controller 115 processes the information and controls the vertical motor 113 to work, driving the fine adjustment rod 114 to rotate. This causes the scanning camera 12, which is threadedly connected to the fine adjustment rod 114, to perform angular displacement. The scanning camera 12 can adjust its position according to the image captured by the recognition camera 10 in front, so that the scanning camera 12 always maintains a perpendicular angle with the passing chip QR code, keeping the QR code in the center of the field of view and within the depth of field, thereby improving the efficiency and accuracy of chip QR code recognition and scanning.

[0029] like Figures 1 to 3 As shown, in this embodiment, the support platform 1 includes a platform 101, an embedding groove 102, and a reinforcing hole 103. The embedding groove 102 is provided on the inner side of the upper end of the platform 101, and the reinforcing holes 103 are provided on the left and right sides of the upper end of the embedding groove 102. The support module 2 includes a U-shaped rod 201, a vertical rod 202, a socket 203, and a pin 204. The vertical rod 202 is sleeved on the inner side of the upper end of the U-shaped rod 201, and the socket 203 is provided on the left and right sides of the outer end of the vertical rod 202. The pin 204 is installed in the internal thread of the socket 203.

[0030] The tabletop 101 is an integral structure. The opening angle of the embedded groove 102 is adapted to the internal space size and the overall shape and size of the magnetic suspension module 5. The number and size of the reinforcing holes 103 are adapted to the number of bolts used for fixing on both sides of the upper end of the connecting sleeve 4 and the outer diameter of the lower end of the bolts. There are two U-shaped rods 201 symmetrically distributed on the left and right. The upright rod 202 and the U-shaped rod 201 are interlocked. The number of insertion holes 203 opened at the outer end of the U-shaped rod 201 is adapted to the through holes opened inside the upright rod 202. The front end of the pin 204 can be threaded through the interior of the U-shaped rod 201 and the upright rod 202, and continue to extend from the other side of the U-shaped rod 201 to be tightened with a nut.

[0031] The magnetic suspension module 5 is embedded in the inner side of the upper end of the platform 101 through the embedded groove 102. Then, the permanent magnet 502 arranged inside the magnetic suspension module 5 and the opposite permanent magnet 502 arranged inside the magnetic cavity 305 at the lower end of the frame 301 make the U-shaped frame 3 and the lower support 1 float and support each other, realizing vibration isolation. At the same time, when it is necessary to adjust the height of the upper support 1, it is only necessary to pull out the pin 204 fixing the U-shaped rod 201 and the upright 202 from the insertion hole 203. The support 1 can be lifted from both sides, and the upright 202 will extend upward inside the U-shaped rod 201. After reaching the appropriate height, the pin 204 is inserted from the insertion hole 203 and passes through the inside of the upright 202. It extends out from the other side of the U-shaped rod 201 and is tightened with a nut. This fixes the U-shaped rod 201 and the upright 202 and provides stable support for the support 1.

[0032] like Figures 1 to 5 As shown, in this embodiment, the U-shaped frame 3 includes a frame 301, a feeding port 302, a bottom groove 303, a top groove 304, and a magnetic cavity 305. The feeding port 302 is provided in the middle of the left and right sides of the outer end of the frame 301. The bottom groove 303 is provided in the left and right sides of the lower end of the frame 301. The top groove 304 is provided in the left and right sides of the upper end of the frame 301. The magnetic cavity 305 is provided above the bottom groove 303. The magnetic suspension module 5 includes a base 501, a permanent magnet 502, a buckle frame 503, a support groove 504, and a rectangular groove 505. The permanent magnet 502 is embedded in the inner side of the upper end of the base 501. The buckle frame 503 is sleeved on the upper end of the permanent magnet 502. The support groove 504 is provided in the inner side of the upper end of the base 501. The rectangular groove 505 is provided in the inner side of the upper end of the buckle frame 503.

[0033] The material inlets 302 are symmetrically distributed on the left and right. The internal shape and size of the bottom groove 303 are adapted to the shape and size of the upper structure of the connecting sleeve 4. The bottom groove 303, the top groove 304 and the magnetic cavity 305 are symmetrically distributed in two sets. The magnetic cavity 305 is also arranged with a permanent magnet 502. The permanent magnet 502 and the permanent magnet 502 arranged inside the magnetic suspension module 5 form a static and constant magnetic field. The lower end of the permanent magnet 502 is embedded in the slot 504 opened at the upper end of the bottom support 501. At the same time, the upper end of the permanent magnet 502 is adapted to the rectangular slot 505 opened inside the buckle frame 503. After the two are installed with the permanent magnet 502, the gap between them can be filled with epoxy resin structural adhesive for fixation. By using permanent magnets 502 set inside the magnetic suspension module 5 and opposite permanent magnets 502 arranged inside the magnetic cavity 305 at the lower end of the frame 301, a stable suspension support is formed between the U-shaped frame 3 and the lower support 1 under the action of the two sets of permanent magnets 502, thus achieving vibration isolation. Then, a soft connection is formed at the gap between the two by the connecting sleeve 4, which improves the stability of the longitudinal angle and reduces the impact of transport vibration on the recognition and scanning operation.

[0034] like Figure 1 and Figure 1 As shown, in this embodiment, the displacement module 6 includes a mounting sleeve 601, a limiting sleeve 602, a lead screw 603, a displacement block 604, and a displacement motor 605. The limiting sleeve 602 is provided on the front side of the mounting sleeve 601. The lead screw 603 is sleeved and installed in the middle of the inner side of the mounting sleeve 601 and the limiting sleeve 602. The displacement block 604 is sleeved and installed in the middle of the outer end of the lead screw 603. The displacement motor 605 is bolted and installed in the middle of the rear end of the mounting sleeve 601. The clamping module 7 includes a clamping block 701, a clamping pin 702, a gasket 703, and a reinforcing screw 704. The clamping pin 702 is threaded and installed in the middle of the upper end of the clamping block 701. The gasket 703 is provided at the lower end of the clamping block 701. The reinforcing screws 704 are threaded and installed on the left and right sides of the upper end of the clamping block 701.

[0035] Both the mounting sleeve 601 and the limiting sleeve 602 are bolted to the top of the U-shaped frame 3 for reinforcement. The mounting sleeve 601 and the limiting sleeve 602 are connected by a threaded rod 603. The portions of the threaded rod 603 extending into the mounting sleeve 601 and the limiting sleeve 602 are not threaded but cylindrical, resulting in a sleeved connection between the threaded rod 603 and the mounting sleeve 601 and the limiting sleeve 602. One end of the 01 is spliced ​​with the transmission end of the displacement motor 605 to realize an integrated transmission structure. The internal thread of the displacement block 604 is adapted to the thread on the outer end of the lead screw 603. Two clamping blocks 701 are symmetrically distributed and connected by a crossbar 8. The contact ends of the two are limited and reinforced by clamping pins 702. The pad 703 is made of rubber material and plays a role in absorbing vibration. Four reinforcing screws 704 are symmetrically distributed.

[0036] The displacement motor 605 drives the lead screw 603 to rotate, causing the internal thread of the displacement block 604 to mesh with the external thread of the lead screw 603, moving the displacement block 604 towards the middle of the lead screw 603. At the same time, the clamping module 7 installed on the upper end of the displacement block 604 and the crossbar 8 fixed by the clamping module 7 will move synchronously, so that the scanning and recognition structure formed by the horizontal module 9 installed on the lower end of the crossbar 8 in conjunction with the recognition camera 10 and the vertical module 11 in conjunction with the scanning camera 12 forms a straight line with the trajectory of the chip, which facilitates the scanning and recognition of QR codes.

[0037] like Figures 10 to 13 As shown, in this embodiment, the transverse module 9 includes a Y-shaped plate 901, a clamping groove 902, a clamping pin 903, a transverse groove 904, and an adjusting rod 905. The clamping groove 902 is provided on the inner side of the upper end of the Y-shaped plate 901, and the clamping pin 903 is installed through the upper part of the outer end of the Y-shaped plate 901. The transverse groove 904 is provided on the inner side of the lower end of the Y-shaped plate 901, and the adjusting rod 905 is sleeved on the front and rear sides of the lower end of the Y-shaped plate 901. The longitudinal module 11 includes a longitudinal clamping plate 111, an inner groove rod 112, a longitudinal motor 113, a fine-tuning rod 114, and a signal controller 115. The inner groove rod 112 is provided on the front and rear sides of the lower end of the longitudinal clamping plate 111. The longitudinal motor 113 is screwed on the right side of the outer end of the inner groove rod 112, and the signal controller 115 is provided on the right side of the upper end of the inner groove rod 112.

[0038] Both the upper end of the Y-shaped plate 901 and the upper end of the longitudinal clamping plate 111 are provided with clamping grooves 902. Multiple clamping pins 903 are arranged laterally at the contact ends of the Y-shaped plate 901 and the longitudinal clamping plate 111 with the crossbar 8 for reinforcement. Two horizontal grooves 904 are opened vertically and horizontally. The left and right parts of the recognition camera 10 are installed inside the two horizontal grooves 904 from both sides. Two adjusting rods 905 are symmetrically distributed on the left and right sides. The installation height of the two adjusting rods 905 is staggered, perfectly matching the two horizontal grooves 904. The front ends of the two adjusting rods 905 extend sequentially from the front and rear directions into the interior of the horizontal grooves 904, penetrating the left and right parts of the recognition camera 10 and extending into the structure of the two horizontal grooves 904. They continue to extend forward, penetrating from the front and rear sides of the lower structure of the Y-shaped plate 901, and are limited by collars and screws. The longitudinal clamping plate 111 is a... The structure is a single unit. The contact ends of the longitudinal clamping plate 111 and the inner groove rod 112 are reinforced with screws. The screws are embedded in the upper part of the inner groove rod 112. During installation, the screws are installed from the upper part of the inner groove rod 112, passing through the lower left and right sides of the longitudinal clamping plate 111 and continuing upwards for reinforcement with nuts. The inner groove rod 112 has a slot inside that is adapted to the upper structure of the scanning camera 12. The transmission end of the longitudinal motor 113 and the fine adjustment rod 114 are spliced ​​together to form an integrated structure. The front end of the fine adjustment rod 114 extends through the interior of the upper structure of the scanning camera 12 and extends out from the front end of the inner groove rod 112. The signal controller 115 is connected to the longitudinal motor 113. The signal controller 115 uses an existing industrial wireless remote I / O module, which is a known technology. Therefore, it will not be described in detail in this paper.

[0039] The adjustable rod 905 controls the sliding of the recognition camera 10 installed inside the transverse slot 904, allowing the recognition camera 10 to adjust the distance between the left and right parts according to the actual conveying speed. Simultaneously, since the recognition camera 10 is connected to an external control computer, it can pre-scan the passing chips to ensure there is no displacement of the chips in the tray, and record the captured images and data. The recorded images and data are then transmitted to the external control computer for processing. The processed information is wirelessly transmitted to the vertical module 11, where the signal controller 115 processes the information and controls the vertical motor 113 to rotate the fine-tuning rod 114. This causes the scanning camera 12, which is threadedly connected to the fine-tuning rod 114, to shift its angle. The scanning camera 12 adjusts its position based on the image captured by the recognition camera 10, ensuring it maintains a perpendicular angle to the passing chip QR code, keeping the QR code within the center of its field of view and depth of field, thus improving the efficiency and accuracy of chip QR code recognition.

[0040] The electrical components mentioned in this article are all connected to an external main controller and mains power, and the main controller can be a conventional known device such as a computer that provides control.

[0041] A semiconductor chip testing QR code scanning and recognition device includes the following steps in use; Step 1: First, place the chip tray on the conveyor belt and convey it to the inside of the U-shaped frame 3 in the conveying direction. The synchronous controller connected to the middle of the rear of the two sets of displacement modules 6 drives the two sets of displacement modules 6 to start working. The displacement motor 605 drives the lead screw 603 to rotate, so that the displacement block 604 moves to the middle. Then, it drives the crossbar 8 to be in a straight line with the conveyor belt passing below. Step 2: When the chip tray passes through the feed port 302 and enters the frame 301, the recognition camera 10 installed on the left side below the crossbar 8 starts to work, performs chip pre-identification on the inside of the chip tray, ensures that there is no displacement of the chips in the tray, and records and transmits the data. Step 3: After the information of chip displacement in the tray is recorded and transmitted, it will be transmitted wirelessly to the vertical module 11. The signal controller 115 will process the information and control the vertical motor 113 to work according to the processed information, which will drive the fine adjustment rod 114 to rotate. This will cause the scanning camera 12, which is threadedly connected to the fine adjustment rod 114, to perform angular displacement. The scanning camera 12 can adjust its own position according to the image captured by the front recognition camera 10, so that the scanning camera 12 always maintains a perpendicular angle with the chip QR code passing below, and keeps the QR code in the center of the field of view and within the depth of field. Step 4: When the identification device is working, the magnetic suspension module 5 is embedded in the inner side of the upper end of the support platform 1 through the embedding groove 102. Then, according to the permanent magnet 502 arranged inside the magnetic suspension module 5 and the opposite permanent magnet 502 arranged inside the magnetic cavity 305 at the lower end of the frame 301, the U-shaped frame 3 and the lower support platform 1 are suspended and supported to achieve vibration isolation. Then, the connecting sleeve 4 is used to achieve a soft connection between the two to improve the stability of the longitudinal angle. Step 5: With the support module 2 in place, when it is necessary to adjust the height of the upper support platform 1, simply pull out the pins 204 that fix the U-shaped rod 201 and the upright 202 from the insertion holes 203. This will lift the support platform 1 from both sides, causing the upright 202 to extend upwards inside the U-shaped rod 201. Once the appropriate height is reached, insert the pins 204 from the insertion holes 203, penetrating the interior of the upright 202 and extending out from the other side of the U-shaped rod 201. Tighten the pins with nuts to fix the U-shaped rod 201 and the upright 202, providing stable support for the support platform 1.

[0042] The technical solution provided by this invention is as follows: A U-shaped frame 3, with symmetrically arranged feeding ports 302 on its front and rear sides, allows the conveyor belt to be arranged along these ports. The support structure of the conveyor belt does not contact the support platform 1; they are independent of each other. Furthermore, the conveying end passing through the feeding port 302 does not contact the U-shaped frame 3, leaving a gap between them. When operation begins, the chip tray is placed on the conveyor belt and conveyed towards the inside of the U-shaped frame 3 in the conveying direction. A synchronous controller connected to the rear center of the two sets of displacement modules 6 drives the two sets of displacement modules 6 to start working, causing the clamping module 7 to move. When the clamping module 7 moves, the crossbar 8 also moves synchronously. The crossbar 8 stops when it is aligned with the conveyor belt below. Then, when the chip tray passes through the feeding port 302 and enters the frame 301, the recognition camera 10, installed on the left side below the crossbar 8, starts working. It pre-identifies the chips inside the passing chip tray to ensure that no chip displacement has occurred, and records and transmits the data. The recorded data is then transmitted. Information is transmitted wirelessly to the longitudinal module 11, where the signal controller 115 processes the information and controls the longitudinal motor 113 to rotate the fine-tuning rod 114. This causes the scanning camera 12, which is threadedly connected to the fine-tuning rod 114, to shift its angle. The scanning camera 12 can adjust its position based on the image captured by the front recognition camera 10, ensuring that it maintains a perpendicular angle to the passing chip QR code. This keeps the QR code within the center of the field of view and within the depth of field, improving the efficiency and accuracy of chip QR code recognition and scanning. Secondly, the permanent magnet 502 inside the magnetic suspension module 5, along with the opposite permanent magnet 502 arranged inside the lower magnetic cavity 305 of the frame 301, creates a stable suspension support between the U-shaped frame 3 and the lower support 1, achieving vibration isolation. A connecting sleeve 4 then forms a soft connection between the two, improving the stability of the longitudinal angle and reducing the impact of transport vibration on the recognition and scanning process.

[0043] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0044] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A semiconductor chip testing QR code scanning and recognition device and its operating method, characterized in that, The system includes a support platform (1), with support modules (2) bolted on the left and right sides of the lower end of the support platform (1). A U-shaped frame (3) is provided above the support platform (1). A connecting sleeve (4) is clamped at the lower end of the U-shaped frame (3). A magnetic suspension module (5) is embedded below the connecting sleeve (4). A displacement module (6) is bolted on the left and right sides of the upper end of the U-shaped frame (3). A clamping module (7) is bolted on the upper middle part of the outer end of the displacement module (6). The clamping modules (7) are symmetrically distributed on the left and right. A crossbar (8) is sleeved in the middle of the clamping module (7). A transverse module (9) is clamped on the left side of the lower end of the crossbar (8). A recognition camera (10) is slidably installed on the inner side of the transverse module (9). A longitudinal module (11) is clamped on the right side of the lower end of the crossbar (8). A scanning camera (12) is slidably installed on the inner side of the lower end of the longitudinal module (11). A light source plate (13) is provided on the left and right sides inside the U-shaped frame (3).

2. The semiconductor chip testing QR code scanning and recognition device according to claim 1, characterized in that, The support platform (1) includes a platform panel (101), an embedding groove (102) and a reinforcing hole (103). The embedding groove (102) is provided on the inner side of the upper end of the platform panel (101), and the reinforcing holes (103) are provided on the left and right sides of the upper end of the embedding groove (102).

3. The semiconductor chip testing QR code scanning and recognition device according to claim 1, characterized in that, The support module (2) includes a U-shaped rod (201), a vertical rod (202), a socket (203) and a pin (204). The vertical rod (202) is sleeved on the inner side of the upper end of the U-shaped rod (201). The left and right sides of the outer end of the vertical rod (202) are provided with sockets (203). The internal threads of the sockets (203) are used to install pins (204).

4. The semiconductor chip testing QR code scanning and recognition device according to claim 1, characterized in that, The U-shaped frame (3) includes a frame (301), a feeding port (302), a bottom groove (303), a top groove (304), and a magnetic cavity (305). The feeding port (302) is provided in the middle of the left and right sides of the outer end of the frame (301). The bottom groove (303) is provided in the left and right sides of the lower end of the frame (301). The top groove (304) is provided in the left and right sides of the upper end of the frame (301). The magnetic cavity (305) is provided above the bottom groove (303).

5. The semiconductor chip testing QR code scanning and recognition device according to claim 1, characterized in that, The magnetic suspension module (5) includes a base (501), a permanent magnet (502), a buckle frame (503), a support groove (504), and a rectangular groove (505). The permanent magnet (502) is embedded in the inner side of the upper end of the base (501), and the buckle frame (503) is sleeved on the upper end of the permanent magnet (502). The support groove (504) is opened on the inner side of the upper end of the base (501), and the rectangular groove (505) is opened on the inner side of the upper end of the buckle frame (503).

6. The semiconductor chip testing QR code scanning and recognition device according to claim 1, characterized in that, The displacement module (6) includes a mounting sleeve (601), a limiting sleeve (602), a lead screw (603), a displacement block (604), and a displacement motor (605). The front side of the mounting sleeve (601) is provided with a limiting sleeve (602). The middle part of the inner side of the mounting sleeve (601) and the limiting sleeve (602) is fitted with a lead screw (603). The middle part of the outer end of the lead screw (603) is fitted with a displacement block (604). The middle part of the rear end of the mounting sleeve (601) is bolted with a displacement motor (605).

7. The semiconductor chip testing QR code scanning and recognition device according to claim 1, characterized in that, The clamping module (7) includes a clamping block (701), a clamping pin (702), a pad (703), and a reinforcing screw (704). The clamping pin (702) is threadedly installed in the middle of the upper end of the clamping block (701), the pad (703) is provided at the lower end of the clamping block (701), and the reinforcing screws (704) are threadedly installed on the left and right sides of the upper end of the clamping block (701).

8. The semiconductor chip testing QR code scanning and recognition device according to claim 1, characterized in that, The transverse module (9) includes a Y-shaped plate (901), a clamping groove (902), a clamping pin (903), a transverse groove (904), and an adjusting rod (905). The clamping groove (902) is provided on the inner side of the upper end of the Y-shaped plate (901), and the clamping pin (903) is installed through the upper part of the outer end of the Y-shaped plate (901). The transverse groove (904) is provided on the inner side of the lower end of the Y-shaped plate (901), and the adjusting rod (905) is sleeved on the front and rear sides of the lower end of the Y-shaped plate (901).

9. The semiconductor chip testing QR code scanning and recognition device according to claim 1, characterized in that, The longitudinal module (11) includes a longitudinal clamping plate (111), an inner groove rod (112), a longitudinal motor (113), a fine-tuning rod (114), and a signal controller (115). The longitudinal clamping plate (111) has an inner groove rod (112) on both the front and rear sides at the lower end. The longitudinal motor (113) is screwed on the right side of the outer end of the inner groove rod (112). The signal controller (115) is located on the right side of the upper end of the inner groove rod (112).

10. The operation method of the semiconductor chip testing QR code scanning and recognition device according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: First, place the chip tray on the conveyor belt and convey it to the inside of the U-shaped frame (3) along the conveying direction. The synchronous controller connected to the middle of the rear of the two sets of displacement modules (6) drives the two sets of displacement modules (6) to start working. The displacement motor (605) drives the lead screw (603) to rotate, so that the displacement block (604) moves to the middle. Then, the crossbar (8) is aligned with the conveyor belt passing below. Step 2: When the chip tray passes through the feed port (302) and enters the frame (301), the recognition camera (10) installed on the left side below the crossbar (8) starts to work, performs chip pre-identification on the chip tray, ensures that there is no displacement of the chip in the tray, and records and transmits the data. Step 3: After the information of the chip displacement in the tray is recorded and transmitted, it will be transmitted wirelessly to the vertical module (11). The signal controller (115) will process the information and control the vertical motor (113) to work according to the processed information, which will drive the fine adjustment rod (114) to rotate, so that the scanning camera (12) installed with the fine adjustment rod (114) in a threaded connection will be displaced. The scanning camera (12) can adjust its own position according to the image captured by the front recognition camera (10), so that the scanning camera (12) always maintains a vertical angle with the chip QR code passing below, so that the QR code is always in the center of the field of view and within the depth of field. Step 4: When the identification device is working, the magnetic suspension module (5) is embedded in the inner side of the upper end of the support (1) through the embedding groove (102). Then, according to the permanent magnet (502) arranged inside the magnetic suspension module (5) and the opposite permanent magnet (502) arranged inside the magnetic cavity (305) at the lower end of the frame (301), the U-shaped frame (3) and the lower support (1) are suspended and supported to achieve vibration isolation. Then, the connecting sleeve (4) is used to achieve a soft connection between the two to improve the stability of the longitudinal angle. Step 5: By using the set support module (2), when it is necessary to adjust the height of the upper support platform (1), simply pull out the pin (204) of the fixed U-shaped rod (201) and the upright (202) from the insertion hole (203), and the support platform (1) can be lifted from both sides, causing the upright (202) to extend upward inside the U-shaped rod (201). After reaching the appropriate height, insert the pin (204) from the insertion hole (203) and pass through the inside of the upright (202), extending out from the other side of the U-shaped rod (201) and tightening it with a nut, so as to fix the U-shaped rod (201) and the upright (202) and provide stable support for the support platform (1).

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