A chip screening device
By designing chip clamping components that adapt to different specifications and shapes, the problem of messy chip placement during transportation is solved, enabling efficient and accurate chip screening, protecting the chip surface, and improving the practicality and ease of operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SUO YE INT TRADE CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-14
AI Technical Summary
Existing chip clamping equipment cannot adapt to chips of different specifications and shapes, resulting in chips being placed haphazardly during transport, affecting screening efficiency and accuracy, and potentially damaging the chips.
A chip sorting device was designed, which uses a clamping assembly with an L-shaped clamping arm and a clamping arc plate driven by a servo motor. It can flexibly adapt to chips of different specifications and shapes, and achieve precise and neat clamping and transfer. Combined with an air pump and a locking ring, it realizes automated control.
It improves chip screening efficiency and accuracy, reduces errors and failure rates during the screening process, protects chip surfaces from damage, and enhances the practicality and ease of operation of the equipment.
Smart Images
Figure CN224486852U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chip screening technology, and in particular to a chip screening device. Background Technology
[0002] In today's era of rapid technological advancement, chips, as core components of electronic devices, directly determine the overall performance of electronic products. With the continuous advancement of chip manufacturing technology, the types and specifications of chips are becoming increasingly diverse, placing higher demands on the precision and efficiency of chip screening. Chip screening is a crucial step in the chip production process. It involves conducting various performance tests on chips to select those that meet quality standards, ensuring the quality and reliability of the final product. During chip screening, chips need to be transported from one process flow to a screening device for testing. However, in actual production, chips may be affected by various factors during transport, such as vibration and collisions, resulting in a disordered arrangement of chips upon arrival at the screening device. This disordered arrangement not only hinders the screening device from quickly and accurately grasping and positioning the chips but may also increase errors and failure rates during the screening process, thus affecting the efficiency and accuracy of the entire screening process.
[0003] In existing technologies, most chip conveying devices can only achieve simple chip transport, without effectively adjusting and controlling the chip's placement. When chips enter the screening device from the conveying device, due to the disordered chip placement, the screening device needs to spend extra time and effort to sort and position the chips. This not only reduces screening efficiency but may also damage the chips due to improper handling during the sorting process. In addition, although some existing chip clamping devices can clamp and transport chips, their clamping mechanism design is not flexible enough to adapt to chips of different specifications and shapes. Furthermore, the clamping process may cause scratches or indentations on the chip surface, affecting the chip's quality and performance, resulting in poor practicality. Therefore, this utility model discloses a chip screening device to solve the problem that existing chip clamping devices cannot adapt to chips of different specifications and shapes. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose a chip screening device to solve the problem that the chip clamping device in the prior art cannot adapt to chips of different specifications and shapes.
[0005] To achieve the above objectives, this utility model provides a chip screening device, comprising: an operating table, wherein multiple sets of support columns are uniformly arrayed on the lower part of the operating table, and a feeding box is provided on one side of the upper end face of the operating table, and a screening box is provided on the other side of the upper end face of the operating table. The screening box is equipped with a screening module for performing performance testing or parameter identification on the chips, so as to perform quality screening and classification processing on the chips entering the screening box. Furthermore, a first conveying device is provided on the upper end face of the operating table on the side of the feeding box, and a second conveying device is provided on the upper end face of the operating table on the side of the screening box. A control box is installed at the bottom of the operating table, and a clamping assembly is provided above the middle part of the operating table. The clamping assembly is used to neatly and regularly clamp the chips to be screened from the first conveying device onto the second conveying device, which then continues to convey them into the screening box to complete subsequent screening operations.
[0006] Preferably, the first conveying device is inserted into the inside of the feeding box at one end, and the feeding box has an output channel on one side wall corresponding to the first conveying device. The second conveying device is inserted into the inside of the feeding box at one end, and the screening box has an input channel on one side wall corresponding to the second conveying device.
[0007] Preferably, a set of mounting columns is installed on both sides of the upper surface of the operating table that are perpendicular to the installation positions of the feeding box and the screening box.
[0008] Preferably, the clamping assembly includes two sets of air pumps, the output ends of which are respectively mounted on the upper end face of the mounting column at corresponding positions. A support frame is mounted on the side wall of both sets of air pumps. A servo motor is mounted in the middle of the support frame. A fixing rod is mounted on the side wall of the output end of the servo motor. The other end of the fixing rod is fixedly mounted on the upper end face of the support frame. A drive rod is mounted on the output end of the servo motor. One end of the drive rod passes through and is rotatably engaged on the support frame. A loading disc is mounted on the other end of the drive rod. A set of connecting posts is installed on both sides of the lower end face of the device. A mounting block is installed at the other end of each set of connecting posts. A driving post is slidably inserted into the center of the mounting block. One end of the driving post penetrates and protrudes from the upper end face of the mounting block. Multiple sets of first groove mounting seats are evenly arranged in a circumferential array on the sidewall of the driving post. A set of rotating shafts is installed on the groove sidewall of each set of first groove mounting seats. A set of L-shaped clamping arms is rotatably mounted on each set of rotating shafts. Furthermore, a set of [unclear - possibly a type of clamping arm] is installed on the sidewall of the mounting block corresponding to the position of each set of first groove mounting seats. The second groove mounting base has an adjusting rotating rod installed on the groove sidewall of each set of second groove mounting bases. The corner of each set of L-shaped clamping arms is rotatably mounted on the corresponding adjusting rotating rod. The inner wall of the other end of each set of L-shaped clamping arms has a clamping arc plate installed, and the outer wall of the end of each set of L-shaped clamping arms corresponding to the clamping arc plate has a locking cylinder installed. Multiple locking grooves are evenly arrayed on the outer wall of the locking cylinders, and a limiting plate is provided below the bottommost locking groove of each set of locking cylinders. A set of locking rings is slidably mounted on the outer wall of the locking cylinder. A driving circular plate is mounted on the other end of the driving cylinder, and a vertical spring is sleeved on the driving cylinder. One end of the vertical spring is mounted on the lower end face of the mounting block, and the other end of the vertical spring is fixedly mounted on the upper end face of the driving circular plate. A number of unlocking cylinders are mounted on the second conveying device in the vertical direction corresponding to the position of the clamping assembly. An unlocking strip is mounted on the side wall of the other end of each set of unlocking cylinders, and a bearing groove is formed on each set of unlocking strips in the vertical direction corresponding to the position of the locking ring.
[0009] Preferably, each end of the support frame has a first circular hole with the same diameter as the air pump at the position of each group of air pumps.
[0010] Preferably, a second circular hole with the same diameter as the drive rod is provided in the middle of the support frame corresponding to the position of the drive rod.
[0011] Preferably, each of the L-shaped clamping arms has a third circular hole with the same diameter as the rotating shaft at the position corresponding to the rotating shaft.
[0012] Preferably, each of the L-shaped clamping arms has a fourth circular hole with the same diameter as the adjusting rotating rod at the position corresponding to the position of the adjusting rotating rod.
[0013] Preferably, the inner wall surface of the clamping arc plate is provided with a rubber pad, and the screening box is provided with a screening module for performing performance testing or parameter identification of the chip. The module includes an import platform for receiving the chip, multiple detection components installed above the import platform, and a diversion mechanism for exporting qualified or unqualified chips to different paths. The detection components may include optical recognition elements, electrical performance probes, or size calibrators, etc., for non-contact or contact detection of the chip's appearance, function, or structural dimensions, thereby realizing chip screening and classification.
[0014] Preferably, the mounting block has a fifth circular hole with the same diameter as the drive column at the position corresponding to the drive column.
[0015] The beneficial effects of this utility model are:
[0016] This novel chip screening device solves the problem of disorderly chip placement during transport by employing a clamping component design. The clamping component precisely and systematically arranges the chips to be screened from the first conveyor and accurately clamps them onto the second conveyor, before sending them into the screening box for testing. This process eliminates the need for additional chip arrangement and positioning steps in the screening device, significantly reducing preparation time and improving screening efficiency. Furthermore, the orderly chip placement allows the screening device to grasp and position chips more quickly and accurately, reducing errors and failure rates caused by improper chip placement, further enhancing screening accuracy and ensuring the reliability of the final screening results.
[0017] The clamping assembly of this invention possesses high flexibility and adaptability, and its clamping mechanism design can easily handle chips of different sizes and shapes. By adjusting the position of the L-shaped clamping arm and the clamping arc plate, the clamping assembly can closely fit the surface of various chips, achieving stable and reliable clamping. This design not only improves the practicality of the equipment, enabling its wide application in various chip screening scenarios, but also significantly reduces damage such as scratches or indentations on the chip surface. Furthermore, the locking cylinder, locking ring, and unlocking cylinder in the clamping assembly work together to achieve automated control of clamping and releasing, further improving the convenience and efficiency of operation. In summary, the chip screening device of this invention improves screening efficiency and accuracy while significantly enhancing the practicality of the equipment and the protection of the chips. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a side view schematic diagram of the planar structure of this utility model;
[0021] Figure 3 This is a three-dimensional structural diagram of the clamping component of this utility model;
[0022] Figure 4 This is an enlarged three-dimensional structural diagram of part of the present invention.
[0023] The diagram is marked as follows:
[0024] 1. Operating table; 2. Support column; 3. Feeding box; 4. Screening box; 5. First conveying device; 6. Control box; 7. Mounting column; 8. Air pump; 9. Servo motor; 10. Fixing rod; 11. Drive rod; 12. Loading disc; 13. Connecting column; 14. Mounting block; 15. L-shaped clamping arm; 16. First groove mounting seat; 17. Drive column; 18. Second groove mounting seat; 19. Adjusting rotating rod; 20. Locking cylinder; 21. Locking ring; 22. Clamping arc plate; 23. Locking groove; 24. Vertical spring; 25. Drive plate; 26. Limiting plate; 27. Second conveying device; 28. Unlocking cylinder; 29. Unlocking strip; 30. Bearing groove. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0026] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0027] This utility model provides, for example Figures 1 to 4The chip screening device shown includes: an operating table 1, with multiple sets of support columns 2 evenly arrayed on the lower part of the operating table 1, a feeding box 3 on one side of the upper end face of the operating table 1, and a screening box 4 on the other side of the upper end face of the operating table 1. The screening box 4 is equipped with a screening module for performing performance testing or parameter identification on the chips, so as to perform quality screening and classification on the chips entering the screening box 4. A first conveying device 5 is provided on the upper end face of the operating table 1 on the side of the feeding box 3, and a second conveying device 27 is provided on the upper end face of the operating table 1 on the side of the screening box 4. A control box 6 is installed at the bottom of the operating table 1, and a clamping assembly is provided above the middle of the operating table 1. The clamping assembly is used to neatly and regularly clamp the chips to be screened from the first conveying device 5 onto the second conveying device 27, which then continues to convey them into the screening box 4 to complete the subsequent screening operation. The chip screening device of this utility model solves the problem of disorderly placement of chips during the process of conveying them to the screening device through the design of the clamping assembly. The clamping assembly can precisely and systematically arrange the chips to be screened from the first conveying device 5 and accurately clamp them onto the second conveying device 27, then send them into the screening box 4 for screening. This process eliminates the need for additional chip sorting and positioning steps in the screening device, greatly shortening the preparation time before screening and significantly improving screening efficiency. Simultaneously, because the chips are arranged neatly and orderly, the screening device can grasp and position the chips more quickly and accurately, reducing errors and failure rates caused by improper chip placement, further improving screening accuracy and ensuring the reliability of the final screening results. The clamping assembly possesses high flexibility and adaptability; its clamping mechanism design can easily handle chips of different sizes and shapes. By adjusting the positions of the L-shaped clamping arm 15 and the clamping arc plate 22, the clamping assembly can closely fit the surface of various chips, achieving stable and reliable clamping. This design not only improves the practicality of the equipment, enabling its widespread application in various chip screening scenarios, but also greatly reduces damage such as scratches or indentations on the chip surface. Furthermore, the locking cylinder 20, locking ring 21, and unlocking cylinder 28 in the clamping assembly work together to achieve automated control of clamping and releasing, further improving the convenience and efficiency of operation. In summary, the chip screening device of this utility model not only improves screening efficiency and accuracy but also significantly enhances the practicality of the equipment and the protection of the chips.
[0028] Furthermore, in this example, such as Figure 1 , Figure 3 and Figure 4As shown, the clamping assembly includes two sets of air pumps 8. The output ends of the two sets of air pumps 8 are respectively installed on the upper end face of the mounting posts 7 at corresponding positions. A support frame is installed on the side wall of both sets of air pumps 8. A servo motor 9 is installed in the middle of the support frame. A fixing rod 10 is installed on the side wall of the output end of the servo motor 9. The other end of the fixing rod 10 is fixedly installed on the upper end face of the support frame. A drive rod 11 is installed on the output end of the servo motor 9. One end of the drive rod 11 passes through and is engaged and rotatably mounted on the support frame. A loading disc 12 is installed on the other end of the drive rod 11. A set of connecting posts 13 is installed on both sides of the lower end face of the loading disc 12. Each set of connecting posts 13... A mounting block 14 is installed at the other end of the column 13. A drive column 17 is slidably inserted into the middle of the mounting block 14. One end of the drive column 17 passes through and protrudes from the upper surface of the mounting block 14. Multiple sets of first groove mounting seats 16 are evenly arranged in a circumferential array on the sidewall of the drive column 17. A set of rotating shafts is installed on the groove sidewall of each set of first groove mounting seats 16. An L-shaped clamping arm 15 is rotatably mounted on each set of rotating shafts. A set of second groove mounting seats 18 is installed on the sidewall of the mounting block 14 corresponding to the position of each set of first groove mounting seats 16. An adjusting rotating rod 19 is installed on the groove sidewall of each set of second groove mounting seats 18. Furthermore, the interchange of each L-shaped clamping arm 15 is rotatably mounted on the corresponding adjusting rotating rod 19. A set of clamping arc plates 22 is installed on the inner wall of the other end of each L-shaped clamping arm 15, and a set of locking cylinders 20 is installed on the outer wall of one end of each L-shaped clamping arm 15 corresponding to the clamping arc plate 22. Multiple sets of locking grooves 23 are evenly arrayed on the outer wall of the locking cylinders 20, and a limiting plate 26 is provided below the bottommost locking groove 23 of each locking cylinder 20. A locking ring 21 is slidably mounted on the outer wall of multiple sets of locking cylinders 20. A driving plate 25 is installed on the other end of the driving column 17, and a locking ring 21 is sleeved on the driving column 17. A vertical spring 24 is installed, with one end of the spring 24 mounted on the lower surface of the mounting block 14 and the other end fixedly mounted on the upper surface of the drive plate 25. Multiple sets of unlocking cylinders 28 are installed on the second conveying device 27 vertically corresponding to the position of the clamping assembly. Each unlocking cylinder 28 has an unlocking strip 29 mounted on its other side wall, and each unlocking strip 29 has a bearing groove 30 vertically corresponding to the position of the locking ring 21. When the first conveying device 5 delivers the chip to a suitable position below the clamping assembly, two sets of air pumps 8 start. The output of the air pumps 8 pushes the support frame downwards, causing the entire clamping assembly to descend. Simultaneously, the servo motor 9 starts working, and its output drives the drive rod 11 to rotate. Since one end of the drive rod 11 is mounted on the support frame and engaged, and the other end is mounted on the loading disc 12, the rotation of the drive rod 11 causes the loading disc 12 to rotate, which in turn drives the mounting block 14 to rotate via the connecting column 13, causing the entire clamping assembly to rotate directly above the chip.As the support frame continues to descend, the mounting block 14 drives the drive column 17, L-shaped clamping arm 15, and other components to descend together. When the drive plate 25 contacts the chip, it compresses the vertical spring 24. Since the drive column 17 is slidably inserted into the middle of the mounting block 14, it is driven to rise, thereby driving one end of the L-shaped clamping arm 15 to rise. At this time, the other end of the L-shaped clamping arm 15 retracts inward until the clamping arc plate 22 contacts the chip and clamps it. At this time, the locking cylinder 20 rotates with the L-shaped clamping arm 15, and the lower part of the locking cylinder 20 tilts downward. Due to gravity, the locking ring 21 moves relative to the locking groove 23 on the locking cylinder 20. Finally, the locking ring 21 is engaged in the appropriate locking groove 23, achieving initial locking of the L-shaped clamping arm 15. The clamping arc plate 22 fits tightly against the chip surface, achieving initial clamping of the chip. Afterwards, the servo motor 9 continues to rotate, driving the clamping assembly holding the chip to rotate above the second transfer device 27. When the clamping assembly descends to the vicinity of the second transfer device 27, the two sets of air pumps 8 start, causing the clamping assembly to move downwards. The unlocking bar 29 on the unlocking cylinder 28 contacts the locking ring 21 as the two sets of air pumps 8 move downwards. At the same time, the bearing groove 30 on the unlocking bar 29 contacts the locking ring 21 and pushes the locking ring 21 upwards, causing the locking ring 21 to disengage from the locking groove 23 and release the lock on the L-shaped clamping arm 15. At this time, under the elastic force of the vertical spring 24, the drive column 17 moves downwards, causing the L-shaped clamping arm 15 to open outwards. The clamping arc plate 22 releases the chip, and the chip is placed on the second transfer device 27, completing the neat and regular clamping and transfer process of the chip from the first transfer device 5 to the second transfer device 27.
[0029] Furthermore, in this example, such as Figure 1 and Figure 3As shown, each end of the support frame has a first circular hole with the same diameter as the air pump 8 at the corresponding position of each air pump 8. The middle of the support frame has a second circular hole with the same diameter as the drive rod 11 at the corresponding position of the drive rod 11. Each L-shaped clamping arm 15 has a third circular hole with the same diameter as the rotating shaft at the corresponding position of the rotating shaft. Each L-shaped clamping arm 15 has a fourth circular hole with the same diameter as the adjusting rotating rod 19 at the corresponding position of the adjusting rotating rod 19. The inner wall surface of the clamping arc plate 22 is provided with a rubber pad. The screening box 4 is equipped with a screening module for performing performance testing or parameter identification of the chips, including an import platform for receiving chips and multiple detection components installed above the import platform. The system also includes a diversion mechanism for exporting qualified or unqualified chips to different paths. The detection components may include optical recognition elements, electrical performance probes, or dimensional calibrators, etc., for non-contact or contact detection of the appearance, function, or structural dimensions of the chips, thereby achieving chip screening and classification. A fifth circular hole with the same diameter as the drive post 17 is opened on the mounting block 14 at the position corresponding to the drive post 17. A first circular hole with the same diameter as the air pump 8 is opened at both ends of the support frame at the positions corresponding to each group of air pumps 8. This design allows the air pump 8 to be stably mounted on the support frame, and the output end of the air pump 8 can smoothly push the support frame up and down through the first circular hole, providing a stable structural foundation for the lifting and lowering of the clamping components. A second circular hole with the same diameter as the drive rod 11 is opened in the middle of the support frame, corresponding to the position of the drive rod 11. This ensures that the drive rod 11 can rotate smoothly on the support frame. At the same time, the snap-fit rotation installation method ensures that the drive rod 11 will not have axial displacement during rotation, thereby stably driving the loading disc 12, mounting block 14 and other components to rotate, realizing the rotation function of the clamping assembly, so that the clamping assembly can accurately reach above the chip and the second transfer device 27. A third circular hole with the same diameter as the rotating shaft is opened on each L-shaped clamping arm 15 corresponding to the position of the rotating shaft, and a fourth circular hole with the same diameter as the adjusting rotating rod 19 is opened on the position of the adjusting rotating rod 19. This allows the L-shaped clamping arm 15 to be flexibly mounted on the mounting block 14 through the rotating shaft and the adjusting rotating rod 19. A rotating shaft is installed on the side wall of the groove in the first groove mounting base 16, and an adjusting rotating rod 19 is installed on the side wall of the groove in the second groove mounting base 18. These provide a stable fulcrum for the L-shaped clamping arm 15, allowing it to open and close under the drive of the drive column 17, thus completing the clamping and releasing operation of the chip. A rubber pad is provided on the inner surface of the clamping arc plate 22. This rubber pad has good elasticity and friction, which not only increases the friction with the chip surface to prevent the chip from slipping when clamping the chip, but also acts as a buffer, preventing the clamping arc plate 22 from causing scratches or indentations on the chip surface, thus protecting the chip's quality and performance. One end of the vertical spring 24 is installed on the lower end face of the mounting block 14, and the other end is fixedly installed on the upper end face of the drive plate 25.During chip clamping, when the clamping arc plate 22 is subjected to the reaction force of the chip, the drive post 17 slides upward to compress the vertical spring 24, which stores elastic potential energy. When the unlocking cylinder 28 pushes the locking ring 21 to release the lock on the L-shaped clamping arm 15, the vertical spring 24 releases its elastic potential energy, pushing the drive post 17 downward to open the L-shaped clamping arm 15 and release the chip. The presence of the vertical spring 24 ensures the stability and reliability of the clamping assembly during chip clamping and release. A fifth circular hole with the same diameter as the drive post 17 is opened on the mounting block 14 at the position corresponding to the drive post 17, ensuring that the drive post 17 can slide smoothly up and down within the mounting block 14, while providing a stable guide for the drive post 17. This allows the clamping assembly to precisely control its movements during chip clamping and release, improving the accuracy of chip clamping and transfer.
[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0031] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A chip screening device, characterized in that, include: The operating table (1) has multiple sets of support columns (2) evenly arranged on the lower part of the operating table (1), and a feeding box (3) is provided on one side of the upper end face of the operating table (1), and a screening box (4) is provided on the other side of the upper end face of the operating table (1). The screening box (4) is equipped with a screening module for performing performance testing or parameter identification of chips, so as to perform quality screening and classification processing on the chips entering the screening box (4). A first conveying device (5) is provided on the upper end face of the operating table (1) on one side of the feeding box (3), and a second conveying device (27) is provided on the upper end face of the operating table (1) on one side of the screening box (4). A control box (6) is installed at the bottom of the operating table (1), and a clamping assembly is provided above the middle part of the operating table (1). The clamping assembly is used to neatly and regularly clamp the chips to be screened from the first conveying device (5) onto the second conveying device (27), and the second conveying device (27) continues to convey them into the screening box (4) to complete the subsequent screening operation.
2. The chip screening device according to claim 1, characterized in that, The first conveying device (5) is inserted into the inside of the feeding box (3) at one end near the feeding box (3), and the feeding box (3) has an output channel on one side wall corresponding to the first conveying device (5). The second conveying device (27) is inserted into the inside of the feeding box (3) at one end near the screening box (4), and the screening box (4) has an input channel on one side wall corresponding to the second conveying device (27).
3. The chip screening device according to claim 2, characterized in that, On both sides of the upper end face of the operating table (1) which are perpendicular to the installation positions of the feeding box (3) and the screening box (4), a set of mounting columns (7) are installed.
4. The chip screening device according to claim 3, characterized in that, The clamping assembly includes two sets of air pumps (8). The output ends of the two sets of air pumps (8) are respectively installed on the upper surface of the mounting column (7) at corresponding positions. A support frame is installed on the side wall of the two sets of air pumps (8). A servo motor (9) is installed in the middle of the support frame. A fixing rod (10) is installed on the side wall of the servo motor (9). The other end of the fixing rod (10) is fixedly installed on the upper surface of the support frame. A drive rod (11) is installed on the output end of the servo motor (9). One end of the drive rod (11) passes through the support frame. A loading disc (12) is installed on the other end of the drive rod (11). A set of connecting columns (1) is installed on both sides of the lower surface of the loading disc (12). 3) Each set of connecting columns (13) has a mounting block (14) installed at the other end. A driving column (17) is slidably inserted into the middle of the mounting block (14). One end of the driving column (17) passes through and protrudes from the upper end face of the mounting block (14). Multiple sets of first groove mounting seats (16) are evenly arranged in a circumferential array on the side wall of the driving column (17). A set of rotating shafts is installed on the groove side wall of each set of first groove mounting seats (16). A set of L-shaped clamping arms (15) is rotatably installed on each set of rotating shafts. A set of second groove mounting seats (18) is installed on the side wall of the mounting block (14) corresponding to the position of each set of first groove mounting seats (16). Each of the groove sidewalls of the seat (18) is equipped with a set of adjusting rotating rods (19), and each set of L-shaped clamping arms (15) is rotatably mounted on the corresponding adjusting rotating rods (19) at the corner. Each set of L-shaped clamping arms (15) is equipped with a set of clamping arc plates (22) on the inner wall of the other end. Each set of L-shaped clamping arms (15) is equipped with a set of locking cylinders (20) on the outer wall of the corresponding end of the clamping arc plates (22). Multiple sets of locking grooves (23) are evenly arrayed on the outer wall of the locking cylinders (20), and each set of locking cylinders (20) is provided with a limiting plate (26) below the bottommost locking groove (23). The outer walls of multiple sets of locking cylinders (20) slide together. A set of locking rings (21) is provided. A drive plate (25) is installed on the other end of the drive column (17). A vertical spring (24) is sleeved on the drive column (17). One end of the vertical spring (24) is installed on the lower end face of the mounting block (14). The other end of the vertical spring (24) is fixedly installed on the upper end face of the drive plate (25). A number of unlocking cylinders (28) are installed on the second conveying device (27) in the vertical direction corresponding to the position of the clamping assembly. An unlocking strip (29) is installed on the side wall of the other end of each unlocking cylinder (28). A bearing groove (30) is opened on each unlocking strip (29) in the vertical direction corresponding to the position of the locking ring (21).
5. The chip screening device according to claim 4, characterized in that, Both ends of the support frame are provided with a first circular hole with the same diameter as the air pump (8) at the position of each group of air pumps (8).
6. The chip screening device according to claim 5, characterized in that, The middle part of the support frame is provided with a second circular hole of the same diameter as the drive rod (11) at the position corresponding to the drive rod (11).
7. The chip screening device according to claim 6, characterized in that, Each L-shaped clamping arm (15) has a third circular hole with the same diameter as the rotating shaft at the position corresponding to the rotating shaft.
8. The chip screening device according to claim 7, characterized in that, Each L-shaped clamping arm (15) has a fourth circular hole with the same diameter as the adjusting rotating rod (19) at the position corresponding to the adjusting rotating rod (19).
9. A chip screening device according to claim 8, characterized in that, The inner wall surface of the clamping arc plate (22) is provided with a rubber pad. The screening box (4) is equipped with a screening module for performing performance testing or parameter identification of the chip. It includes an import platform for receiving the chip, multiple detection components installed above the import platform, and a diversion mechanism for exporting qualified or unqualified chips to different paths. The detection components may include optical recognition elements, electrical performance probes or size verifiers, for non-contact or contact detection of the appearance, function or structural dimensions of the chip, thereby realizing chip screening and classification.
10. A chip screening device according to claim 9, characterized in that, The mounting block (14) has a fifth circular hole with the same diameter as the drive column (17) at the position corresponding to the drive column (17).