Burning jig

Abstract

The burning jig comprises a pressing block, a bearing seat, a first test board, a second test board and a first elastic piece, the pressing block is connected with the first test board, the bearing seat is used for bearing a PCBA and provided with a through hole, the first elastic piece is arranged between the second test board and the bearing seat, chips on the first face of the PCBA correspond to probes of the first test board in a one-to-one mode, and the chips on the second face of the PCBA correspond to the probes of the second test board in a one-to-one mode. And the chips on the second surface of the PCBA, the through holes and the probes on the second test board are in one-to-one correspondence. When the pressing block downwards presses the bearing seat to the first position, the first test board and the second test board are respectively used for being in contact with chips on the front side and the back side of the PCBA, synchronous burning of the chips on the two sides is achieved, and the problems that in the prior art, only one side of the PCBA can be burnt each time, and burning time is long are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of chip programming, in particular to a programming fixture. Background Art

[0002] In the field of modern electronic technology, as a core component of electronic devices, a circuit board carries various electronic components and chips. Among them, as a key element on the circuit board, the performance and function of the chip directly determine the performance and performance of the entire electronic device. Chip programming, as an important link in the chip preparation and electronic device production process, cannot be ignored.

[0003] For circuit board programming, it is necessary to press the circuit board so that the chips on the circuit board are in contact with the test board in the programming socket, and then programming is carried out. However, in the prior art, there are usually chips on both sides of the circuit board. During testing, only the chips on the front side of the circuit board can be made to contact the test board first for programming. After the programming is completed, the chips on the back side of the circuit board are then made to contact the test board for programming. The programming time is long. Therefore, it is necessary to improve the prior art.

[0004] The above information is given as background information only to assist in understanding the present disclosure, and it is not determined or admitted whether any of the above content can be used as the prior art relative to the present disclosure. Summary of the Utility Model

[0005] The utility model provides a programming fixture to solve the problem that the programming fixture in the prior art can only program the chips on one side of the circuit board each time, resulting in a long programming time.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] A programming fixture includes a pressing block, a supporting seat, a first test board, a second test board and a first elastic member. The pressing block is connected to the first test board. The supporting seat is used for supporting the PCBA and is provided with a through hole. The first elastic member is arranged between the second test board and the supporting seat. The chips on the first side of the PCBA correspond one by one to the probes on the first test board. The chips on the second side of the PCBA, the through hole and the probes on the second test board correspond one by one. The pressing block is used to press down the supporting seat so that the PCBA contacts the first test board and the second test board.

[0008] Preferably, the supporting seat is provided with a first accommodating cavity and a second accommodating cavity. The size of the first accommodating cavity is the same as the size of the PCBA. The second accommodating cavity faces the second test board and has the same size as the second test board. The through hole communicates the first accommodating cavity and the second accommodating cavity.

[0009] Preferably, the programming fixture further includes a base for supporting the second test board, and the first elastic member connects the base and the supporting seat.

[0010] Preferably, the programming fixture further includes a fixing block and a rotating shaft. The fixing block is connected to the base, and the rotating shaft passes through the pressing block and is rotatably connected to the fixing block.

[0011] Preferably, the programming fixture further includes a torsion spring. The first end of the torsion spring is connected to the fixing block, and the second end of the torsion spring is connected to the pressing block.

[0012] Preferably, the programming fixture further includes a fixing block, a threaded rod, and a motor. The fixing block is connected to the base and is provided with a threaded hole. The threaded rod is threadedly connected to the threaded hole. One end of the threaded rod close to the supporting seat is connected to the first test board, and the other end of the threaded rod away from the supporting seat is connected to the motor.

[0013] Preferably, the pressing block is further rotatably connected to a hook, and a clamping seat is connected to the base at a position corresponding to the hook. When the PCBA abuts against the first test board and the second test board, the hook is clamped to the clamping seat.

[0014] Preferably, the programming fixture further includes a first guide post, a second guide post, and a guide hole. The first guide post is connected to the pressing block, and the supporting seat is provided with the guide hole at a position corresponding to the first guide post. The diameter of the guide hole matches the diameter of the first guide post. The second guide post is connected to the base and passes through the supporting seat.

[0015] Preferably, the programming fixture further includes a power adapter for supplying power to the first test board and the second test board.

[0016] Preferably, the programming fixture further includes support feet threadedly connected to the base.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] A programming fixture provided by the utility model includes a pressing block, a supporting seat, a first test board, a second test board, and a first elastic member. The pressing block is connected to the first test board. The supporting seat is used to support the PCBA and is provided with a through hole. The first elastic member is arranged between the second test board and the supporting seat. The chips on the first side of the PCBA correspond one by one to the probes on the first test board, and the chips on the second side of the PCBA, the through hole, and the probes on the second test board correspond one by one. When the pressing block of the utility model presses the supporting seat to the first position, the first test board and the second test board are respectively used to contact the chips on the front and back sides of the PCBA, realizing synchronous programming of double-sided chips and solving the problem in the prior art that only one side of the PCBA can be programmed each time, resulting in a long programming time.

[0019] The utility model has other characteristics and advantages, which will be obvious from the accompanying drawings incorporated herein and the subsequent detailed implementation manners, or will be described in detail in the accompanying drawings incorporated herein and the subsequent detailed implementation manners. These accompanying drawings and detailed implementation manners are jointly used to explain the specific principles of the utility model. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0021] Figure 1 is a schematic structural diagram of the programming fixture of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the supporting seat and the base of the present utility model;

[0023] Figure 3 is a schematic structural diagram of the second accommodation cavity of the present utility model;

[0024] Figure 4 is a schematic structural diagram of the base and the second test board of the present utility model.

[0025] Reference Signs:

[0026] 1. Base; 2. Supporting Seat; 3. First Elastic Member; 4. Second Guide Post; 5. First Accommodation Cavity; 6. Second Accommodation Cavity; 7. Guide Hole; 8. Card Seat; 9. First Guide Post; 10. Pressing Block; 11. First Test Board; 12. Second Test Board; 13. Fixed Block; 14. Rotating Shaft; 15. Torsion Spring; 16. Hook; 17. Power Adapter; 18. Support Foot. Detailed Implementation Manner

[0027] In order to make the objectives, features, and advantages of the present utility model more obvious and understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component set at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component set at the same time.

[0029] In addition, terms such as "long", "short", "inner", "outer", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model, rather than indicating or implying that the device or component referred to must have this specific orientation and be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model.

[0030] The following further illustrates the technical solutions of the present utility model with reference to the accompanying drawings and through specific implementation manners.

[0031] Please refer to Figures 1-4 As shown, the present utility model discloses a programming fixture, which includes a pressing block 10, a supporting seat 2, a first test board 11, a second test board 12, and a first elastic member 3. The pressing block 10 is connected to the first test board 11. The supporting seat 2 is used to support the PCBA and is provided with a through hole. The first elastic member 3 is disposed between the second test board 12 and the supporting seat 2. The chips on the first surface of the PCBA correspond one by one to the probes on the first test board 11. The chips on the second surface of the PCBA, the through hole, and the probes on the second test board 12 correspond one by one. The pressing block 10 is used to press down the supporting seat 2 so that the PCBA abuts against the first test board 11 and the second test board 12.

[0032] It should be noted that when the pressing block 10 of the present utility model presses down the supporting seat 2 to the first position, the first test board 11 and the second test board 12 are respectively used to contact the chips on the front and back surfaces of the PCBA, realizing the synchronous programming of the double-sided chips and solving the problem in the prior art that only one side of the PCBA can be programmed each time, resulting in a long programming time.

[0033] Specifically, the supporting base 2 is provided with a first accommodating cavity 5 and a second accommodating cavity 6. The size of the first accommodating cavity 5 is consistent with the size of the PCBA. The second accommodating cavity 6 faces the second test board 12 and is consistent with the size of the second test board 12. The through hole communicates the first accommodating cavity 5 and the second accommodating cavity 6.

[0034] Specifically, the programming fixture further includes a base 1 for supporting the second test board 12, and a first elastic member 3 connects the base 1 and the supporting base 2.

[0035] The consistent size of the first accommodating cavity 5 with the size of the PCBA helps to reduce the movement or offset of the PCBA during the programming process, thus ensuring stable contact between the chip and the first test board 11 or the second test board 12. When the pressing block 10 presses down the supporting base 2 to the first position, the second test board 12 is limited in the second accommodating cavity 6. The consistent size of the second accommodating cavity 6 with the size of the second test board 12 helps to reduce the movement or offset of the second test board 12 during the programming process, ensuring stable contact between the chip and the second test board 12. The through hole provides a channel for the chip on the reverse side of the PCBA. When the pressing block 10 presses down, the chip on the reverse side of the PCBA can smoothly pass through the through hole and contact the probes on the second test board 12. The first elastic member 3 allows for a certain space between the base 1 and the supporting base 2, and the second test board 12 can be located within this space. In addition, the first elastic member 3 can also buffer the impact of the pressing block 10 on the supporting base 2 and the PCBA, preventing damage to the supporting base 2 and the PCBA.

[0036] Specifically, the programming fixture further includes a fixing block 13 and a rotating shaft 14. The fixing block 13 is connected to the base 1, and the rotating shaft 14 passes through the pressing block 10 and is rotatably connected to the fixing block 13.

[0037] Specifically, the programming fixture further includes a torsion spring 15. The first end of the torsion spring 15 is connected to the fixing block 13, and the second end of the torsion spring 15 is connected to the pressing block 10.

[0038] When the pressing block 10 is pressed down by an external force to contact the PCBA, the torsion spring 15 is compressed and stores energy; when the external force disappears, the torsion spring 15 releases the energy and pushes the pressing block 10 to automatically return to the original position.

[0039] Specifically, the programming fixture further includes a fixing block 13, a threaded rod, and a motor. The fixing block 13 is connected to the base 1 and is provided with a threaded hole. The threaded rod is threadedly connected to the threaded hole. One end of the threaded rod close to the supporting base 2 is connected to the first test board 11, and the end of the threaded rod far from the supporting base 2 is connected to the motor.

[0040] When the motor rotates forward, the threaded rod moves vertically downward along the threaded hole. When the threaded rod presses the supporting seat 2 to the first position, the first test plate 11 and the second test plate 12 are respectively used to contact the chips on the front and back sides of the PCBA, realizing the synchronous programming of double-sided chips. After the programming is completed, the motor rotates in the reverse direction until the first test plate 11 disengages from the PCBA, and then the PCBA can be taken out.

[0041] Specifically, the pressing block 10 is also rotatably connected to a hook 16, and a clamping seat 8 is connected to the base 1 at the position corresponding to the hook 16. When the PCBA abuts against the first test plate 11 and the second test plate 12, the hook 16 is clamped to the clamping seat 8. After the hook 16 is clamped to the clamping seat 8, the position of the pressing block 10 can be locked, preventing the pressing block 10 from moving or lifting due to external factors (such as vibration and impact) during the programming process, thereby ensuring the stability and reliability of the programming process.

[0042] Specifically, the programming fixture further includes a first guide post 9, a second guide post 4 and a guide hole 7. The first guide post 9 is connected to the pressing block 10, and a guide hole 7 is provided at the position of the supporting seat 2 corresponding to the guide post. The diameter of the guide hole 7 matches the diameter of the guide post. The second guide post 4 is connected to the base 1 and passes through the supporting seat 2.

[0043] The first guide post 9 and the first guide hole 7 ensure that the pressing block 10 moves in a straight line during the downward pressing process, reducing deviation and shaking, thereby improving the contact accuracy between the PCBA and the first test plate 11. The second guide post 4 can ensure that the supporting seat 2 moves in the vertical direction, preventing the supporting seat 2 from moving or deviating in the horizontal direction.

[0044] Specifically, the programming fixture further includes a power adapter 17, and the power adapter 17 is used to supply power to the first test plate 11 and the second test plate 12.

[0045] Specifically, the programming fixture further includes a support foot 18, and the support foot 18 is threadedly connected to the base 1.

[0046] The support foot 18 of the present utility model is threadedly connected to the base 1, so the distance between the base 1 and the support member can be adjusted to meet the usage requirements of the staff. An anti-slip pad is sleeved on the support foot 18, effectively preventing the programming fixture from moving.

[0047] So far, the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A programming fixture, characterized in that: It includes a pressing block, a supporting seat, a first test board, a second test board and a first elastic member. The pressing block is connected to the first test board. The supporting seat is used for supporting the PCBA and is provided with a through hole. The first elastic member is arranged between the second test board and the supporting seat. The chips on the first surface of the PCBA correspond one by one to the probes on the first test board. The chips on the second surface of the PCBA, the through hole and the probes on the second test board correspond one by one. The pressing block is used to press down the supporting seat so that the PCBA abuts against the first test board and the second test board.

2. The programming jig according to claim 1, wherein: The supporting seat is provided with a first accommodating cavity and a second accommodating cavity. The size of the first accommodating cavity is the same as that of the PCBA. The second accommodating cavity faces the second test board and has the same size as the second test board. The through hole communicates the first accommodating cavity and the second accommodating cavity.

3. The programming fixture according to claim 1, characterized in that: It further includes a base which is used for supporting the second test board. The first elastic member connects the base and the supporting seat.

4. The programming fixture according to claim 3, wherein: It further includes a fixing block and a rotating shaft. The fixing block is connected to the base. The rotating shaft penetrates through the pressing block and is rotatably connected to the fixing block.

5. The programming fixture according to claim 4, wherein: It further includes a torsion spring. The first end of the torsion spring is connected to the fixing block, and the second end of the torsion spring is connected to the pressing block.

6. The programming fixture according to claim 3, wherein: It further includes a fixing block, a threaded rod and a motor. The fixing block is connected to the base and is provided with a threaded hole. The threaded rod is threadedly connected to the threaded hole. One end of the threaded rod close to the supporting seat is connected to the first test board, and the end of the threaded rod far from the supporting seat is connected to the motor.

7. The burning fixture according to claim 3, wherein: The pressing block is further rotatably connected to a hook. A clamping seat is connected to the base at a position corresponding to the hook. When the PCBA abuts against the first test board and the second test board, the hook is clamped to the clamping seat.

8. The programming fixture according to claim 3, wherein: It further includes a first guiding post, a second guiding post and a guiding hole. The first guiding post is connected to the pressing block. The guiding hole is provided at the position of the supporting seat corresponding to the first guiding post. The diameter of the guiding hole matches the diameter of the first guiding post. The second guiding post is connected to the base and passes through the supporting seat.

9. The burning fixture according to claim 1, characterized in that: It further includes a power adapter which is used for supplying power to the first test board and the second test board.

10. The burning fixture according to claim 3, wherein: It further includes supporting feet which are threadedly connected to the base.

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