A simple device based on Burn In LB sub-board quick disassembly development

Abstract

The application discloses a simple device based on Burn In LB sub-plate quick disassembly and development, and particularly relates to the chip disassembly technical field, and includes a sleeve plate, a support plate and a disassembly mechanism, wherein the upper portion of the sleeve plate is provided with the support plate; the inside of the support plate is provided with the disassembly mechanism, a plurality of card clamping plates and four hook heads are installed on the disassembly mechanism. The card clamping plates and the hook heads of the disassembly mechanism are synchronously matched, the synchronous lifting disassembly of the upper and lower parts of one Burn In LB sub-plate can be completed at one time, manual operation is not needed, the time consumption of single batch disassembly is greatly reduced, the whole structure is simple, an operator can complete the operation by holding the handle, the operation threshold is low, the disassembly efficiency is obviously improved, and thus the problems of time and energy consumption, extremely low efficiency and poor accuracy caused by manual disassembly of technicians and damage caused by manual disassembly of technicians are solved.

Description

Technical Field

[0001] This application relates to the field of chip assembly and disassembly technology, and in particular to a simple device developed based on the rapid assembly and disassembly of a Burn In LB daughterboard. Background Technology

[0002] A simple device allows for the rapid assembly and disassembly of a Burn-in Block (LB) daughterboard outside the aging furnace, eliminating the need for operation inside the high-temperature furnace. This significantly reduces the waiting time for loading and unloading chips in a single batch, improves the overall throughput efficiency of aging tests, and reduces operational safety risks under high-temperature conditions. It also minimizes the idle time of the daughterboard and chips inside the furnace. Developing such a rapid disassembly device improves efficiency and ensures quality. For example, patent publication number CN111129913A describes a device for assembling and disassembling socket-type pin-packaged chips, providing a vertical chip disassembly and assembly mechanism for chip pins and sockets. This device safely and reliably removes pin-packaged chips from their sockets, thereby increasing chip reusability, reducing pin repairs, and avoiding unnecessary cost increases during development. However, the following problems still exist.

[0003] When chips undergo aging tests, an aging furnace is required. To improve efficiency, each furnace holds 28 BurnIN LBs, and each LB holds 28 daughterboards. Manual disassembly by technicians is extremely time-consuming, labor-intensive, inefficient, inaccurate, and prone to damage. This rapid disassembly device has now been developed to improve efficiency and ensure quality. Summary of the Invention

[0004] To address the aforementioned issues, a simple device based on the Burn In LB daughterboard for quick assembly and disassembly is provided, comprising a sleeve plate with a support plate above it. The support plate is equipped with a disassembly mechanism, which is fitted with multiple gripping plates and four hooks. The disassembly mechanism drives multiple gripping plates to lift and disassemble a Burn In LB sub-board from the edge, while the disassembly mechanism drives four hooks to lift and disassemble the edge of a Burn In LB sub-board.

[0005] Preferably, the plurality of gripping plates are arranged in a rectangular distribution, and the top diameter of the hook is smaller than its bottom diameter; The sleeve plate is fixedly connected to the gripping plate, and the support plate is used to guide the gripping plate to slide.

[0006] Preferably, the disassembly mechanism includes a handle sleeve, a support frame, a hinge shaft, a frame, a pry handle, a pull rod, a spring, two pull shafts, a pointed support shaft, a mounting plate, and multiple pressure rods; The handle sleeve is fixedly connected to the upper surface of the support plate, and the support frame is fixed to the lower surface of the support plate and near the gripping plate. The support frame and the sleeve are slidably connected. The hinge shaft is slidably installed on the inner wall of the handle sleeve, the frame is slidably connected to the outer wall of the hinge shaft, and a pry handle is fixed at the bottom of the frame and near its corner line. The pry handle is used to drive the frame to rotate and pry. The pull rod is fixedly connected to the bottom end of the outer wall of the hinge shaft, and the pull rod is slidably connected to the support plate. The pull rod is used to slide along the inner wall of the sleeve plate. The spring surrounds the outer wall of the pull rod, and the support plate and the sleeve plate are both fixedly connected to the spring. The spring is used to provide elastic force to the sleeve plate. The two pull shafts are respectively fixedly connected to the top of the four hooks, the pull shafts are fixedly connected to the sleeve plate, and both pull shafts are slidably connected to the support plate; The pointed support shaft is located on one side of one of the pull shafts, the pointed support shaft is slidably connected to the sleeve plate, and the pointed support shaft is fixedly connected to the support plate; The mounting plate is detachably installed on one side of the outer wall of the support plate, and the mounting plate is used to support the support plate. The multiple pressure rods are all fixedly connected to the lower surface of the sleeve plate and located between the two pull shafts.

[0007] Preferably, the bottom end face of the support frame and the bottom end face of the pointed support shaft are on the same horizontal plane; The diameter of the bottom end of the pointed support shaft is smaller than the diameter of its top end.

[0008] Preferably, the bottom diameter of the pull rod is larger than its top diameter, and the inner wall of the spring is slidably connected to the pull rod.

[0009] Preferably, one side of the spring is provided with a housing that is fixedly connected to the support plate; The inner wall of the box has a groove at the bottom end, and a proximity sensor is embedded at the bottom end of the box and on one side of the groove. The proximity sensor is used for proximity sensing. A geared motor is installed on one side of the inner wall of the box. A rotating ring is fixed to the outer wall of the output end of the geared motor. An angle sensor is installed at the output end of the geared motor. The outer wall of the angle sensor is fixedly connected to the box. The outer wall of the rotating ring is fixed with a limiting strip, and the inner wall of the limiting strip is provided with a limiting hole, the inner wall of the limiting hole being rounded.

[0010] Preferably, a support frame is fixed at the bottom of the inner wall of the box body and at one side of the groove body; A drive motor is installed at one end of the support frame, and a screw is fixed at the output end of the drive motor. The drive motor is used to drive the screw to rotate, and a sleeve block is threadedly connected to the outer wall of the screw. The support frame is used to guide the sliding of the sleeve block. A linkage bar is fixed to the top of the socket block, and a push block is fixed to one end of the linkage bar away from the socket block. One side of the push block is fixed with an insert rod, a side block, and a pressure strip.

[0011] Preferably, the vertical cross-sectional shape of the linkage bar is L-shaped, and a gap is provided between the linkage bar and the support frame.

[0012] Preferably, the vertical cross-section of the side block is an isosceles triangle, and a gap is provided between the pressure strip and the side block.

[0013] This application has the following technical advantages: 1. This invention uses a disassembly mechanism with a gripping plate and a hook head working in sync to simultaneously lift and disassemble the upper and lower parts of a Burn In LB sub-board in one go. This eliminates the need for manual operation of each sub-board individually, significantly reducing the time required for disassembly and assembly in a single batch and greatly improving efficiency. It is currently in normal use in the workshop.

[0014] 2. This invention achieves the core disassembly and assembly actions through the overall structure relying on the sleeve plate and support plate in conjunction with the lever structure of the pry handle. It does not involve complex electrical structures, the overall structure is simple, and the operator can complete the operation by holding the handle. It has a low learning threshold and is convenient for daily maintenance.

[0015] 3. This invention incorporates a proximity sensor and a limiting strip to form a dual limiting structure, which can precisely control the upward movement of the sleeve, avoiding excessive lifting that could cause damage to the sub-board and chip. The disassembly and assembly process is precise and controllable, effectively ensuring the quality of the test pieces and reducing material loss. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a simple device developed based on the Burn In LB daughterboard for quick assembly and disassembly according to an embodiment of this application.

[0017] Figure 2 This is a side view diagram of the quick assembly and disassembly structure of the Burn In LB daughterboard according to an embodiment of this application.

[0018] Figure 3 This is a partial structural diagram of the connection between the hook and the pull shaft in an embodiment of this application.

[0019] Figure 4 This is a schematic diagram of the connection between the pry handle and the frame in an embodiment of this application.

[0020] Figure 5This is a bottom-view perspective view of the box structure according to an embodiment of this application.

[0021] Figure 6 This is a partial structural diagram of the connection between the housing and the geared motor in an embodiment of this application.

[0022] Figure 7 This is a partial structural diagram of the support frame in the main view of an embodiment of this application.

[0023] Figure 8 This is a partial structural diagram of the support frame from below, according to an embodiment of this application.

[0024] Reference numerals: 1. Sleeve plate; 2. Support plate; 3. Grip plate; 4. Handle sleeve; 5. Hook head; 6. Support frame; 7. Hinge shaft; 8. Frame body; 9. Pry handle; 10. Pull rod; 11. Spring; 12. Pull shaft; 13. Pointed support shaft; 14. Mounting plate; 15. Box body; 16. Slot body; 17. Proximity sensor; 18. Gear motor; 19. Rotary ring; 20. Angle sensor; 21. Limiting strip; 22. Limiting hole; 23. Support frame; 24. Drive motor; 25. Screw; 26. Sleeve block; 27. Linkage strip; 28. Push block; 29. ​​Insert rod; 30. Side block; 31. Pressing side strip; 32. Pressing rod. Detailed Implementation

[0025] Example 1: refer to Figure 1 - Figure 8 As shown, this application embodiment is a simple device developed based on the quick assembly and disassembly of the Burn In LB daughterboard, including a sleeve plate 1, with a support plate 2 above the sleeve plate 1; the support plate 2 has a disassembly mechanism inside, and multiple gripping plates 3 and four hooks 5 are installed on the disassembly mechanism. The multiple gripping plates 3 are arranged in a rectangular distribution, and the top diameter of the hooks 5 is smaller than the bottom diameter; the sleeve plate 1 is fixedly connected to the gripping plates 3, and the support plate 2 is used to guide the gripping plates 3 to slide.

[0026] The principle of this technology is that the disassembly mechanism drives multiple gripping plates 3 to lift and disassemble a Burn In LB sub-board from the edge. At the same time, the disassembly mechanism drives four hooks 5 to lift and disassemble the edge of a Burn In LB sub-board. This allows for the rapid and simultaneous disassembly of the upper and lower parts of a Burn In LB sub-board, improving disassembly efficiency.

[0027] Example 2: refer to Figure 1 - Figure 4As shown, the disassembly mechanism includes a handle sleeve 4, a support frame 6, a hinge shaft 7, a frame 8, a pry handle 9, a pull rod 10, a spring 11, two pull shafts 12, a pointed support shaft 13, a mounting plate 14, and multiple pressure rods 32. The handle sleeve 4 is fixedly connected to the upper surface of the support plate 2, and the support frame 6 is fixed to the lower surface of the support plate 2 near the gripping plate 3. The support frame 6 is slidably connected to the sleeve 1. The hinge shaft 7 is slidably installed on the inner wall of the handle sleeve 4, and the frame 8 is slidably connected to the outer wall of the hinge shaft 7. A pry handle 9 is fixed at the bottom end of the frame 8 near its corner. The pry handle 9 is used to drive the frame 8 to rotate and pry. The pull rod 10 is fixedly connected to the bottom end of the outer wall of the hinge shaft 7, and the pull rod 10 is slidably connected to the support plate 2. The connection includes a pull rod 10 for sliding along the inner wall of the sleeve 1; a spring 11 surrounds the outer wall of the pull rod 10, and both the support plate 2 and the sleeve 1 are fixedly connected to the spring 11, which provides elastic force to the sleeve 1; two pull shafts 12 are respectively fixedly connected to the tops of four hooks 5, and the pull shafts 12 are fixedly connected to the sleeve 1, while both pull shafts 12 are slidably connected to the support plate 2; a pointed support shaft 13 is located on one side of one of the pull shafts 12, and is slidably connected to the sleeve 1 and fixedly connected to the support plate 2; a mounting plate 14 is detachably installed on one side of the outer wall of the support plate 2, and is used to support the support plate 2; multiple pressure rods 32 are fixedly connected to the lower surface of the sleeve 1 and located between two pull shafts 12. The bottom end face of the support frame 6 is at the same horizontal plane as the bottom end face of the pointed support shaft 13; the bottom diameter of the pointed support shaft 13 is smaller than its top diameter. The bottom diameter of the pull rod 10 is larger than its top diameter, and the inner wall of the spring 11 is slidably connected to the pull rod 10.

[0028] The principle of this technology is that the mounting plate 14 supports the support plate 2, while the support frame 6 and the pointed support shaft 13 both provide support force to the support plate 2, ensuring the stable use of the support plate 2. Then, a Burn In LB subplate is placed between the two pull shafts 12 from the rear. The hand is held on the pry handle 9, and the pry handle 9 is pressed. The pry handle 9, based on the lever principle, drives the frame 8 to rotate. The frame 8 drives the hinge shaft 7 to slide upward. The hinge shaft 7 drives the pull rod 10 to move upward. The pull rod 10 drives the sleeve plate 1 to move upward. The sleeve plate 1 compresses the spring 11, and the spring 11 provides a rebound force to the sleeve plate 1. At the same time, the sleeve plate 1 drives multiple gripping plates 3 to lift upward, thereby the multiple gripping plates 3 gripping a Burn In LB subplate. The lower part of the LB daughterboard is lifted and disassembled by edge lifting. At the same time, the sleeve plate 1 supports multiple pressure rods 32, which position and support the chip. Meanwhile, the sleeve plate 1 drives multiple pull shafts 12 to move upward and lift. The multiple pull shafts 12 are guided upward along the inner wall of the support plate 2. At the same time, the multiple pull shafts 12 drive multiple hooks 5 to move upward respectively. The multiple hooks 5 lift and disassemble the upper edge of a Burn In LB daughterboard.

[0029] Example 3: refer to Figure 2 - Figure 6 As shown, a box 15 is fixedly connected to the support plate 2 on one side of the spring 11; a groove 16 is opened at the bottom of the inner wall of the box 15, and a proximity sensor 17 is embedded at the bottom of the box 15 and at one side of the groove 16. The proximity sensor 17 is used for proximity sensing; a geared motor 18 is installed on one side of the inner wall of the box 15, and a rotating ring 19 is fixed to the outer wall of the output end of the geared motor 18. An angle sensor 20 is installed at the output end of the geared motor 18, and the outer wall of the angle sensor 20 is fixedly connected to the box 15; a limit strip 21 is fixed to the outer wall of the rotating ring 19, and a limit hole 22 is opened on the inner wall of the limit strip 21. The inner wall of the limit hole 22 is rounded.

[0030] The principle of this technology is that the housing 15 supports the proximity sensor 17, which senses the distance of the upward movement of the sleeve 1. When the proximity sensor 17 approaches and senses the distance, the reduction motor 18 is activated. The output of the reduction motor 18 drives the rotating ring 19 to rotate clockwise. The rotating ring 19 drives the limiting strip 21 to rotate clockwise, and the limiting strip 21 drives the limiting hole 22 to rotate clockwise. The limiting strip 21 also rotates clockwise along the inner wall of the groove 16. In this way, the limiting strip 21 extends to the lower area of ​​the housing 15, so that the limiting strip 21 can limit the top of the sleeve 1 and prevent excessive lifting and disassembly of the sleeve 1, which would cause excessive disassembly and damage.

[0031] Example 4: refer to Figure 6 - Figure 8 As shown, a support frame 23 is fixed at the bottom of the inner wall of the box 15, located on one side of the groove 16. A drive motor 24 is installed at one end of the support frame 23, and a screw 25 is fixed at the output end of the drive motor 24. The drive motor 24 drives the screw 25 to rotate. A sleeve block 26 is threadedly connected to the outer wall of the screw 25. The support frame 23 guides the sleeve block 26 to slide. A linkage bar 27 is fixed at the top of the sleeve block 26. A push block 28 is fixed at one end of the linkage bar 27, away from the sleeve block 26. An insert rod 29, a side block 30, and a pressing side bar 31 are fixed on one side of the push block 28. The vertical cross-section of the linkage bar 27 is L-shaped, and there is a gap between the linkage bar 27 and the support frame 23. The vertical cross-section of the side block 30 is an isosceles triangle, and there is a gap between the pressing side bar 31 and the side block 30.

[0032] The principle of this technology is that when the limiting strip 21 rotates and extends to the lower position of the box body 15, the drive motor 24 is started, and the drive motor 24 drives the screw 25 to rotate. The screw 25 rotates on the inner wall of the support frame 23. At the same time, the screw 25 drives the sleeve block 26 to move forward under the action of the thread. Simultaneously, the sleeve block 26 causes the linkage strip 27 to move forward. The linkage strip 27 drives the push block 28 to move forward. The push block 28 causes the insertion rod 29 to be inserted into the limiting hole 22 inside the limiting strip 21 for limiting. At the same time, the side block 30 is limited at the angle position between the limiting strip 21 and the box body 15. At the same time, the pressing side strip 31 is inserted into the angle position between the right side of the limiting strip 21 and the bottom end of the inner wall of the box body 15. This achieves multi-point and large-area limiting of the limiting strip 21, avoiding excessive upward movement and disassembly of the sleeve plate 1.

[0033] This technology allows for the removal of one Burn In LB sub-board at a time, while removing Burn In LB sub-boards one by one, repeating the operation to ensure synchronous lifting and disassembly of the upper and lower parts. It eliminates the need for manual operation of each board individually, significantly reducing the time spent on disassembly and assembly per batch and greatly improving disassembly and assembly efficiency.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, any equivalent changes made in accordance with the structure, shape and principle of this application are not permitted.

Claims

1. A simple device developed based on the rapid assembly and disassembly of the Burn In LB daughterboard, comprising a sleeve (1), characterized in that: A support plate (2) is provided above the sleeve plate (1); The support plate (2) is equipped with a disassembly mechanism, which is equipped with multiple gripping plates (3) and four hooks (5). The disassembly mechanism drives multiple gripping plates (3) to lift and disassemble a Burn In LB sub-board from the edge, while the disassembly mechanism drives four hooks (5) to lift and disassemble the edge of a Burn In LB sub-board.

2. The simple device developed based on the rapid assembly and disassembly of the Burn In LB daughterboard according to claim 1, characterized in that: The multiple gripping plates (3) are arranged in a rectangular distribution, and the top diameter of the hook (5) is smaller than its bottom diameter; The sleeve plate (1) is fixedly connected to the gripping plate (3), and the support plate (2) is used to guide the gripping plate (3) to slide.

3. The simple device developed based on the rapid assembly and disassembly of the Burn In LB daughterboard according to claim 1, characterized in that: The disassembly mechanism includes a handle sleeve (4), a support frame (6), a hinge shaft (7), a frame (8), a pry handle (9), a pull rod (10), a spring (11), two pull shafts (12), a pointed support shaft (13), a mounting plate (14), and multiple pressure rods (32). The handle sleeve (4) is fixedly connected to the upper surface of the support plate (2), and the support frame (6) is fixed to the lower surface of the support plate (2) and close to the gripping plate (3). The support frame (6) and the sleeve (1) are slidably connected. The hinge shaft (7) is slidably installed on the inner wall of the handle sleeve (4), and the frame (8) is slidably connected to the outer wall of the hinge shaft (7). A pry handle (9) is fixed at the bottom of the frame (8) and near its corner line. The pry handle (9) is used to drive the frame (8) to rotate and pry. The pull rod (10) is fixedly connected to the bottom of the outer wall of the hinge shaft (7), and the pull rod (10) is slidably connected to the support plate (2). The pull rod (10) is used to slide along the inner wall of the sleeve plate (1). The spring (11) surrounds the outer wall of the pull rod (10), and the support plate (2) and the sleeve plate (1) are both fixedly connected to the spring (11). The spring (11) is used to provide elastic force to the sleeve plate (1). The two pull shafts (12) are fixedly connected to the top of the four hooks (5), the pull shafts (12) are fixedly connected to the sleeve (1), and the two pull shafts (12) are slidably connected to the support plate (2); The pointed support shaft (13) is located on one side of one of the pull shafts (12), the pointed support shaft (13) is slidably connected to the sleeve plate (1), and the pointed support shaft (13) is fixedly connected to the support plate (2); The mounting plate (14) is detachably mounted on one side of the outer wall of the support plate (2), and the mounting plate (14) is used to support the support plate (2). The multiple pressure rods (32) are fixedly connected to the lower surface of the sleeve plate (1) and located between the two pull shafts (12).

4. The simple device developed based on the rapid assembly and disassembly of the Burn In LB daughterboard according to claim 2, characterized in that: The bottom end face of the support frame (6) and the bottom end face of the pointed support shaft (13) are on the same horizontal plane; The diameter of the bottom end of the pointed support shaft (13) is smaller than the diameter of its top end.

5. The simple device developed based on the rapid assembly and disassembly of the Burn In LB daughterboard according to claim 3, characterized in that: The bottom diameter of the pull rod (10) is larger than its top diameter, and the inner wall of the spring (11) is slidably connected to the pull rod (10).

6. The simple device developed based on the rapid assembly and disassembly of the Burn In LB daughterboard according to claim 3, characterized in that: The spring (11) has a box (15) fixedly connected to the support plate (2) on one side. The inner wall of the box (15) has a groove (16) at the bottom end. A proximity sensor (17) is embedded at the bottom end of the box (15) and on one side of the groove (16). The proximity sensor (17) is used for proximity sensing. A geared motor (18) is installed on one side of the inner wall of the box (15). A rotating ring (19) is fixed on the outer wall of the output end of the geared motor (18). An angle sensor (20) is installed on the output end of the geared motor (18). The outer wall of the angle sensor (20) is fixedly connected to the box (15). The outer wall of the rotating ring (19) is fixed with a limiting strip (21), and the inner wall of the limiting strip (21) is provided with a limiting hole (22), and the inner wall of the limiting hole (22) is rounded.

7. The simple device developed based on the rapid assembly and disassembly of the Burn In LB daughterboard according to claim 6, characterized in that: A support frame (23) is fixed at the bottom of the inner wall of the box (15) and at one side of the groove (16). A drive motor (24) is installed at one end of the support frame (23). A screw (25) is fixed at the output end of the drive motor (24). The drive motor (24) is used to drive the screw (25) to rotate. A sleeve block (26) is threadedly connected to the outer wall of the screw (25). The support frame (23) is used to guide the sleeve block (26) to slide. The top end of the socket block (26) is fixed with a linkage bar (27), and a push block (28) is fixed at one end of the linkage bar (27) away from the socket block (26). The push block (28) has a plug rod (29), a side block (30), and a pressure strip (31) fixed on one side.

8. The simple device developed based on the rapid assembly and disassembly of the Burn In LB daughterboard according to claim 7, characterized in that: The vertical cross-section of the linkage bar (27) is L-shaped, and there is a gap between the linkage bar (27) and the support frame (23).

9. A simple device developed based on the rapid assembly and disassembly of a Burn In LB daughterboard according to claim 8, characterized in that: The vertical cross-section of the side block (30) is an isosceles triangle, and there is a gap between the pressure strip (31) and the side block (30).

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