Detachable master slice burning jig
The limiting and compensation mechanism of the detachable mother chip burning fixture solves the problem of poor contact caused by the chip's tiny size tolerance and warping deformation, achieving efficient and stable chip burning and convenient disassembly.
Patent Information
- Application Number
- CN202510798602.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2025-09-26
AI Technical Summary
Traditional chip burning fixtures are difficult to adapt to the tiny size tolerances and warping deformation of chips, resulting in poor contact or instantaneous disconnection, affecting the burning yield and efficiency.
A detachable mother chip burning fixture is used, combined with a limit mechanism and a compensation mechanism. The triangular push block and the limit plate are used for initial limiting, and the pressing ball is used for secondary compression to ensure good contact between the chip and the burning probe. The chip can be easily removed through the lifting mechanism.
It achieves precise positioning and pressing of the chip, reduces contact resistance, improves burning stability and reliability, reduces material waste, extends the service life of the fixture, and improves the convenience of disassembly.
Smart Images
Figure CN120709795A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electronic manufacturing, and in particular to a detachable motherboard burning fixture. Background Art
[0002] In the electronics manufacturing industry, chip programming is a crucial step, and its quality directly impacts product performance and production efficiency. Traditional programming fixtures often use rigid limiters or simple spring-loaded structures to secure the chip. However, these fixing methods have numerous shortcomings and are unable to meet the modern demands for high-precision and high-reliability chip programming.
[0003] Existing fixtures mostly use rigid limiters or simple spring pressure plates to fix the chip. This fixing method is difficult to adapt to the tiny dimensional tolerances and warping deformation of the chip, and can easily lead to poor or unstable contact between the chip pins and the burning probe. Increased contact resistance or instantaneous disconnection can cause burning failure, data errors or interruptions, seriously affecting the burning yield and efficiency. For example, the length of chips in one batch may be 0.1 mm shorter than the design standard, while another batch may be 0.1 mm longer. Under the rigid limit structure, this slight change in size may cause the chip to be unable to accurately align with the burning probe, resulting in slight warping deformation between the pins and the probe. During the burning process, this misalignment will increase the contact resistance and affect the burning effect. Summary of the Invention
[0004] The purpose of the present invention is to provide a detachable master chip burning fixture to solve the problems existing in the above background technology.
[0005] The purpose of the present invention can be achieved through the following technical solutions: A detachable motherboard burning fixture comprises a burning platform, a burning board is mounted on the burning platform, and a plurality of burning components interconnected by wires are arranged on the burning board; The programming component includes a bottom programming fixture, and a placement groove is provided in the middle of the bottom programming fixture for placing the chip; The surface of the bottom burning fixture is provided with a rectangular arrangement of limiting mechanisms, which include a triangular push block 1 sliding on the bottom burning fixture, and one end of the triangular push block 1 is fixedly connected to a limiting plate for limiting the chip through a docking rod; A plurality of compensation mechanisms are provided inside one side of the limit plate, and the compensation mechanisms include a fixed block fixed to the inside of the limit plate, and a moving block pushed by two limit springs is slidably connected inside the fixed block, and one end of the moving block is fixed to a connecting frame for rotating the compression ball; The moving block removes the pressing ball from the interior of the limiting plate and presses the chip limit through the reverse thrust of the limiting spring 2.
[0006] As a further solution of the present invention: a circular groove is provided inside the limiting plate, and the fixed block, the movable block, the connecting frame, and the pressing ball are all provided in the circular groove; The pressing ball is rotatably connected to the middle part of the connecting frame; The second limit spring is arranged in the fixed block and fixedly connected between the movable block and the fixed block.
[0007] As a further solution of the present invention: the compensation mechanism further includes two sliding blocks fixedly connected to both sides of the movable block and sliding in sliding grooves provided on both sides of the fixed block.
[0008] As a further solution of the present invention: the burning assembly further includes a top burning jig, which is arranged parallel to and above the bottom burning jig; Four docking springs are provided and fixed between the top burning fixture and the bottom burning fixture.
[0009] As a further solution of the present invention: the limiting mechanism further includes a limiting column, which is fixed in the bottom burning fixture and arranged in a slide groove provided in the bottom burning fixture; The movable plate slides on the surface of the limiting column and one end of the movable plate is fixed to the bottom of the docking rod; Limit spring 1, sleeved on the limit post and fixed between the movable plate and the bottom burning fixture; The second triangular push block is fixedly connected to the inner side of the top programming fixture and is symmetrically arranged with the first triangular push block.
[0010] As a further solution of the present invention: four sets of symmetrically arranged lifting mechanisms are provided in the bottom burning fixture to lift the chip.
[0011] As a further solution of the present invention: the lifting mechanism includes a connecting rod sliding inside the bottom burning fixture; The limiting plate is fixed to the bottom of the programming fixture, and the middle part is slidably connected to the connecting column; Lift the disk and slide it into the burning fixture at the bottom; The third limit spring is sleeved on the connecting column and fixed between the lifting plate and the limit plate; The push column is fixed to the middle of the lower surface of the connecting column and slides in the bottom burning fixture.
[0012] As a further solution of the present invention: the sliding groove is provided for the movement of the push column and is communicated with the sliding space of the connecting rod, and the push column is arranged above the connecting rod.
[0013] As a further solution of the present invention: burning connectors are provided on both sides of the burning board for connecting the burning cables to realize data transmission.
[0014] As a further solution of the present invention: a support plate is fixedly connected to one side of the surface of the burning table, a motor is fixedly connected to the surface of the support plate, and a threaded column is fixedly connected to the output end of the motor; The surface of the threaded column is threadedly connected to a sliding plate that slides in a sliding groove provided in the middle of the support plate, and the other end of the sliding plate is fixedly connected to a pressing plate; Two symmetrically arranged guide columns are fixedly connected between the burning platform and the supporting plate, and the surfaces of the guide columns are slidably connected with sliding sleeves, while one side of the sliding sleeves is fixedly connected to the middle of the pressing plate.
[0015] Beneficial effects of the present invention: (1) The present invention realizes precise limiting and pressing of the chip through the synergistic effect of the limiting mechanism and the compensation mechanism. The triangular push block 1 and the limiting plate in the limiting mechanism can initially limit the chip, while the limiting spring 2 and the pressing ball in the compensation mechanism further press the chip for a second time. This dual limiting and pressing mechanism can effectively adapt to the tiny dimensional tolerance and warping deformation of the chip, ensure good contact between the chip pins and the burning probe, thereby reducing contact resistance, avoiding instantaneous disconnection, and improving the stability and reliability of burning; (2) The lifting mechanism of the present invention can lift the chip after the burning is completed, which is convenient for the operator to quickly take the chip. The initial state of the lifting plate is higher than the placement slot plane of the bottom burning fixture, and the final state is lower than the placement slot plane, which avoids the chip adhering to the surface of the lifting plate due to pressure inertia when lifting, thereby improving the convenience of chip disassembly. At the same time, by eliminating the welding process, the fixture of the present invention not only shortens the production time of the master chip, but also avoids the problem of chip and plate scrapping caused by improper welding operation. The chip does not need to be welded and can be used repeatedly, reducing material waste; (3) The pressing ball in the compensation mechanism of the present invention is made of rubber material and has elasticity, which can better adapt to the slight unevenness of the chip surface and avoid poor contact caused by chip warping or dimensional tolerance. At the same time, the bottom burning fixture and the limit plate are provided with inclined surfaces to avoid interference when the pressing ball moves and retracts, ensuring that the pressing ball can flexibly perform pressing and releasing operations. In addition, the reverse thrust of the limit spring 2 can effectively maintain the compensation of displacement and ensure that the chip guide point is in close contact with the burning needle. This design not only improves the flexibility and adaptability of chip fixation, but also extends the service life of the fixture. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a structural schematic diagram of the present invention; Figure 3It is a schematic diagram of the local structure in the figure; Figure 4 yes Figure 3 Schematic diagram of the cross-section structure; Figure 5 It is a schematic diagram of the three-dimensional structure of the limiting mechanism in the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the compensation mechanism in the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the jacking mechanism in the present invention; Figure 8 yes Figure 7 Enlarged view of point A in the middle.
[0018] In the figure: 1. Burning station; 2. Burning board; 3. Burning assembly; 30. Bottom burning fixture; 31. Top burning fixture; 32. Docking spring; 33. Placement slot; 4. Limiting mechanism; 40. Limiting plate; 41. Docking rod; 42. Moving plate; 43. Triangular push block 1; 44. Limiting column; 45. Limiting spring 1; 46. Triangular push block 2; 5. Compensation mechanism; 50. Fixed block; 51. Moving Block; 52, slider; 53, limit spring 2; 54, connecting frame; 55, pressing ball; 6, lifting mechanism; 60, push column; 61, connecting rod; 62, lifting disk; 63, connecting column; 64, limit spring 3; 65, limit disk; 7, burning connector; 8, wire; 9, support plate; 10, motor; 11, threaded column; 12, sliding plate; 13, pressure plate; 14, guide column; 15, sliding sleeve. DETAILED DESCRIPTION
[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.
[0020] Example 1 See also Figures 1-8 As shown, the present invention is a detachable motherboard burning fixture, comprising a burning table 1, a burning board 2 is mounted on the burning table 1, and a plurality of burning components 3 are provided on the burning board 2 and are interconnected by wires 8; The programming component 3 includes a bottom programming fixture 30 , and a placement groove 33 is provided in the middle of the bottom programming fixture 30 for placing the chip; The surface of the bottom burning fixture 30 is provided with a rectangular arrangement of limiting mechanisms 4. The limiting mechanisms 4 include a triangular push block 43 that slides on the bottom burning fixture 30, and one end of the triangular push block 43 is fixedly connected to a limiting plate 40 for limiting the chip through a docking rod 41; Multiple compensation mechanisms 5 are provided inside one side of the limit plate 40. The compensation mechanisms 5 include a fixed block 50 fixed to the inside of the limit plate 40. A movable block 51 is slidably connected to the fixed block 50 and is pushed by a second limit spring 53. At the same time, one end of the movable block 51 is fixed to a connecting frame 54 that guides the rotation of a pressing ball 55. The moving block 51 removes the pressing ball 55 from the interior of the limiting plate 40 through the reverse thrust of the limiting spring 2 53 and compresses the chip.
[0021] It should be noted that the placement slot 33 of the bottom burning fixture 30 is provided with a pin hole to facilitate the connection between the burning board and the chip guide point to achieve data transmission; The bottom burning fixture 30 and the limit plate 40 are provided with a compensation mechanism 5. The front end of the joint is provided with a small angle bevel to avoid interference when the pressing ball 55 moves and recovers; The outer circumferential surface of the pressing ball 55 is made of rubber material and has a certain elasticity, which can better press the chip to avoid pressure loss.
[0022] In the present invention, preferably, a circular groove is provided inside the limiting plate 40, and the fixed block 50, the movable block 51, the connecting frame 54, and the pressing ball 55 are all provided in the circular groove; The pressing ball 55 is rotatably connected to the middle portion of the connecting frame 54; The second limit spring 53 is disposed in the fixed block 50 and fixed between the movable block 51 and the fixed block 50 .
[0023] It should be noted that the circular groove can provide space for the fixed block 50, the movable block 51, the connecting frame 54, and the pressing ball 55 to move, thereby reducing interference. The pressing ball 55 is rotatably connected to the middle portion of the connecting frame 54, which can effectively avoid interference when the pressing ball 55 moves.
[0024] In the present invention, preferably, the compensation mechanism 5 further includes two sliding blocks 52 , which are fixed to both sides of the moving block 51 and slide in the sliding grooves provided on both sides of the fixed block 50 .
[0025] In the present invention, preferably, the burning component 3 further includes a top burning fixture 31, which is arranged parallel to the bottom burning fixture 30; Four docking springs 32 are provided and fixed between the top programming jig 31 and the bottom programming jig 30 .
[0026] It should be noted that the docking springs 32 are disposed around the top programming jig 31 and the bottom programming jig 30 to generate elastic force on the top programming jig 31 .
[0027] In the present invention, preferably, the limiting mechanism 4 further includes a limiting post 44, which is fixed to the bottom burning fixture 30 and disposed in a slide groove provided in the bottom burning fixture 30; The movable plate 42 slides on the surface of the limiting column 44 and one end of the movable plate 42 is fixed to the bottom of the docking rod 41; Limit spring 1 45 is sleeved on the limit post 44 and fixed between the movable plate 42 and the bottom programming fixture 30; The second triangular push block 46 is fixed to the inner side of the top programming fixture 31 and is symmetrically arranged with the first triangular push block 43 .
[0028] It should be noted that the inclined surfaces of the triangular push block 2 46 and the triangular push block 1 43 are symmetrically arranged and are arranged in contact with each other, so that the inclined surfaces of the triangular push block 2 46 and the triangular push block 1 43 can be more easily docked when they contact each other; The second triangular push block 46 is disposed above the first triangular push block 43 , and in an initial state, the second triangular push block 46 is disposed with respect to the first triangular push block 43 with a certain lateral position difference.
[0029] During the implementation process, when the top burning jig 31 is squeezed and moves downward along the bottom burning jig 30 with the push column 60, the top burning jig 31 moves downward with the four triangular push blocks 2 46. The four triangular push blocks 2 46 move downward and contact the inclined surface of the triangular push block 1 43 and push the triangular push block 1 43. The triangular push block 1 43 pushes the docking rod 41. The docking rod 41 moves the movable plate 42 inward along the slide groove of the bottom burning jig 30 and the surface of the limit column 44. The movable plate 42 squeezes the limit spring 1 45. The docking rod 41 moves the limit plate 40 inward to the surface of the chip at the placement slot 33 to limit the chip. When the limit plate 40 moves with the compensation mechanism 5 to the surface of the chip, the second limit spring 53 in the fixed block 50 pushes the moving block 51, and the moving block 51 moves downward along the slide grooves on both sides of the fixed block 50 with the slider 52. The moving block 51 moves downward with the connecting frame 54 and the pressing ball 55, so that the pressing ball 55 presses the chip and performs a secondary compression on the chip, ensuring the close fit of the chip in the placement slot 33, thereby improving the stability of chip data burning and avoiding interruption. The reverse thrust of the second limit spring 53 can effectively maintain the displacement compensation, ensuring that the chip guide point is in close contact with the burning needle. When the top burning jig 31 rises with the triangular push block 2 46 , the movable plate 42 moves outward along the limit column 44 and the slide groove due to the counter thrust of the limit spring 1 45 , and the docking rod 41 moves the limit plate 40 outward. The limit plate 40 moves along the inclined surface of the bottom burning jig 30 with the pressing ball 55 that has moved out of the interior a small distance, and is stored in the circular groove through the squeezing of the limit spring 2 53 inside the fixed block 50 by the movable block 51 .
[0030] Example 2 In the present invention, preferably, four sets of symmetrically arranged lifting mechanisms 6 are provided in the bottom burning fixture 30 to lift the chip.
[0031] In the present invention, preferably, the lifting mechanism 6 includes a connecting rod 61 that slides inside the bottom burning fixture 30; The limiting plate 65 is fixed to the bottom of the programming fixture 30 and is slidably connected to the connecting column 63 in the middle; The lifting plate 62 slides inside the bottom burning fixture 30; The third limiting spring 64 is sleeved on the connecting post 63 and fixed between the lifting plate 62 and the limiting plate 65; The push post 60 is fixed to the middle portion of the lower surface of the connecting post 63 and slides in the bottom programming fixture 30 .
[0032] It should be noted that there are four lifting plates 62, connecting pillars 63, limiting springs 64, and limiting plates 65, which are located around the placement slot 33 in the bottom burning fixture 30, so that the chip can be lifted stably. The initial state of the lifting plate 62 is higher than the plane of the placement groove 33 in the bottom burning jig 30, and the final state of the lifting plate 62 is smaller than the plane of the placement groove 33 in the bottom burning jig 30. When the lifting plate 62 is pressed into the bottom burning jig 30, it does not contact the chip. This prevents the chip from sticking to the surface of the lifting plate 62 due to the inertia of the pressure during lifting, thereby affecting the convenience of chip removal.
[0033] In the present invention, preferably, a sliding groove is provided for the push column 60 to move and is communicated with the sliding space of the connecting rod 61 , and the push column 60 is provided above the connecting rod 61 .
[0034] In the present invention, preferably, both sides of the burning board 2 are provided with burning connectors 7 for connecting the burning lines to realize data transmission.
[0035] In the present invention, preferably, a support plate 9 is fixedly connected to one side of the surface of the burning station 1, a motor 10 is fixedly connected to the surface of the support plate 9, and a threaded column 11 is fixedly connected to the output end of the motor 10; The surface of the threaded column 11 is threadedly connected to a sliding plate 12 that slides in a sliding groove in the middle of the support plate 9, and the other end of the sliding plate 12 is fixedly connected to a pressing plate 13; Two symmetrically arranged guide posts 14 are fixed between the burning table 1 and the support plate 9 , and sliding sleeves 15 are slidably connected to the surfaces of the guide posts 14 . At the same time, one side of the sliding sleeve 15 is fixed to the middle of the pressing plate 13 .
[0036] It should be noted that the threaded column 11 is arranged in the sliding groove of the support plate 9 and rotates in the middle of the support plate 9 to avoid interference when the threaded column 11 moves; The programming connector 7 is connected via an external programming data line to provide electrical signals and programming data.
[0037] During the implementation process, first place the chip in the placement slot 33 in the bottom burning fixture 30 to push out the surface of the four lifting plates 62. After all are placed, set the motor 10. The output end of the motor 10 rotates with the threaded column 11. The threaded column 11 rotates to make the sliding plate 12 move downward along the middle of the support plate 9 and the surface of the threaded column 11. The sliding plate 12 moves downward with the pressing plate 13. The pressing plate 13 moves downward with the sliding sleeve 15 along the surface of the guide column 14. The pressing plate 13 moves downward to press the top burning fixture 31. The top burning fixture 31 slowly moves along the bottom burning fixture with the push column 60. The inside of the recording jig 30 moves downward, and the push column 60 moves downward along the inside of the bottom burning jig 30, pushing the connecting rod 61. The connecting rod 61 moves downward along the sliding groove inside the bottom burning jig 30, carrying the connecting column 63 and the lifting plate 62 along the middle part of the limit plate 65 and the circular sliding groove of the bottom burning jig 30. The lifting plate 62 squeezes the limit spring 3 64, and the lifting plate 62 moves downward with the chip, so that the chip is completely immersed in the placement groove 33, and the lifting plate 62 moves to the inside of the bottom burning jig 30 below the level of the placement groove 33 in the bottom burning jig 30. After the pressing is completed, the burning data line is connected to the burning connector 7 to transmit the burning data through the external controller; When the top burning jig 31 rises due to the reverse thrust of the docking spring 32, the connecting rod 61 carries the pushing column 60 up along the inside of the bottom burning jig 30. At this time, the connecting column 63 and the lifting plate 62 move upward along the inside of the bottom burning jig 30 and the middle of the limiting plate 65 through the reverse thrust of the limiting spring 3 64 to lift the four sides of the chip, making it easier to pick up the chip after data burning is completed, thereby completing the chip disassembly.
[0038] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.
Claims
1. A detachable master chip burning fixture, characterized in that: It comprises a burning platform (1), a burning board (2) is installed on the burning platform (1), and a plurality of burning components (3) are provided on the burning board (2) and are interconnected through wires (8); The programming component (3) comprises a bottom programming fixture (30), wherein a placement groove (33) is provided in the middle of the bottom programming fixture (30) for placing a chip; The surface of the bottom burning fixture (30) is provided with a rectangularly arranged limiting mechanism (4), the limiting mechanism (4) comprising a triangular push block (43) sliding on the bottom burning fixture (30), and one end of the triangular push block (43) is fixedly connected to a limiting plate (40) for limiting the chip through a docking rod (41); A plurality of compensation mechanisms (5) are provided inside one side of the limit plate (40), and the compensation mechanisms (5) include a fixed block (50) fixed to the inside of the limit plate (40), and a movable block (51) pushed by a second limit spring (53) is slidably connected inside the fixed block (50), and a connecting frame (54) is fixed at one end of the movable block (51) for rotating and guiding the pressing ball (55); The moving block (51) removes the pressing ball (55) from the interior of the limiting plate (40) and presses the chip through the reverse thrust of the second limiting spring (53).
2. The detachable master chip burning fixture according to claim 1, characterized in that: A circular groove is provided inside the limiting plate (40), and the fixed block (50), the movable block (51), the connecting frame (54), and the pressing ball (55) are all provided in the circular groove; The pressing ball (55) is rotatably connected to the middle portion of the connecting frame (54); The second limit spring (53) is arranged in the fixed block (50) and fixed between the movable block (51) and the fixed block (50).
3. The detachable master chip burning fixture according to claim 1, characterized in that: The compensation mechanism (5) further comprises two sliding blocks (52) fixedly connected to both sides of the movable block (51) and sliding in sliding grooves provided on both sides of the fixed block (50).
4. The detachable master chip burning fixture according to claim 1, characterized in that: The burning component (3) further includes a top burning fixture (31) arranged parallel to and above the bottom burning fixture (30); Four docking springs (32) are provided and are fixed between the top burning jig (31) and the bottom burning jig (30).
5. The detachable master chip burning fixture according to claim 1, characterized in that: The limiting mechanism (4) further includes a limiting column (44), which is fixedly connected to the bottom burning fixture (30) and is arranged in a slide groove provided in the bottom burning fixture (30); A movable plate (42) slides on the surface of the limiting column (44) and one end of the movable plate is fixed to the bottom of the docking rod (41); A limit spring (45) is sleeved on the limit post (44) and fixed between the movable plate (42) and the bottom burning fixture (30); The second triangular push block (46) is fixed to the inner side of the top burning fixture (31) and is symmetrically arranged with the first triangular push block (43).
6. The detachable master chip burning fixture according to claim 1, characterized in that: Four sets of symmetrically arranged lifting mechanisms (6) are provided in the bottom burning fixture (30) to lift the chip.
7. The detachable master chip burning fixture according to claim 6, characterized in that: The lifting mechanism (6) includes a connecting rod (61) that slides inside the bottom burning fixture (30); A limiting plate (65) is fixedly connected to the bottom burning fixture (30) and has a connecting column (63) in a sliding connection in the middle; The top plate (62) is slid into the bottom burning fixture (30); A limit spring (3) (64) is sleeved on the connecting column (63) and fixed between the lifting plate (62) and the limit plate (65); The push column (60) is fixed to the middle of the lower surface of the connecting column (63) and slides in the bottom burning fixture (30).
8. The detachable master chip burning fixture according to claim 7, characterized in that: The sliding groove is provided for the push column (60) to move and is communicated with the sliding space of the connecting rod (61). The push column (60) is arranged above the connecting rod (61).
9. The detachable master chip burning fixture according to claim 1, characterized in that: Both sides of the burning board (2) are provided with burning connectors (7) for connecting the burning lines to realize data transmission.
10. The detachable master chip burning fixture according to claim 1, characterized in that: A support plate (9) is fixedly connected to one side of the surface of the burning table (1), a motor (10) is fixedly connected to the surface of the support plate (9), and a threaded column (11) is fixedly connected to the output end of the motor (10); The surface of the threaded column (11) is threadedly connected to a sliding plate (12) that slides in a sliding groove provided in the middle of the support plate (9), and the other end of the sliding plate (12) is fixedly connected to a pressing plate (13); Two symmetrically arranged guide posts (14) are fixedly connected between the burning table (1) and the support plate (9), and the surfaces of the guide posts (14) are slidably connected to sliding sleeves (15), while one side of the sliding sleeve (15) is fixedly connected to the middle of the pressing plate (13).