Two-wire sharp needle head of flying probe tester

Abstract

The utility model discloses a flying probe tester two-wire sharp needle head, which comprises a mounting plate and a mounting seat arranged at the upper side position of the mounting plate, a needle head main body is arranged at the upper side position of the mounting seat, a replacement head is arranged at the right upper side position of the needle head main body, a needle point is arranged at the right upper side position of the replacement head, and the needle point is arranged at the right upper side position of the replacement head. A connecting rod is arranged at the connecting position of the replacing head and the needle head body, in the novel needle head, damaged parts are allowed to be replaced independently instead of the whole assembly, the maintenance cost is greatly saved, particularly, the novel needle head is more economical for the production environment with high-frequency use, and due to the flexible design of the replacing head, the replacement efficiency is improved. According to the utility model, the most suitable needle head configuration can be quickly adapted according to different test scenes, the multifunctionality and adaptability of the equipment are enhanced, the sharpness of the needle head is ensured by timely replacement, false positive errors caused by poor contact or mistaken touch of a plurality of contact points are prevented, and the accuracy of PCB detection is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field related to a flying probe tester test needle, and in particular relates to a two-wire pointed needle for a flying probe tester. Background Art

[0002] A flying probe tester is a device used to test printed circuit boards (PCBs). It uses moving probes (flying probes) to check electrical continuity, resistance, capacitance, and other electrical characteristics on the board. This testing method is suitable for high-density, multi-layer PCBs, especially when test points are closely spaced and wiring is complex. The probes in a flying probe tester are typically independently controlled and can be precisely moved to predetermined test points for testing.

[0003] When the existing flying probe tester's two-line pointed needle is used to test PCB contacts for a long time, the needle tip will wear out, causing the needle tip to become blunt, resulting in incomplete contact with the contacts, or continuous contact with multiple contacts, causing detection errors. The test line needs to be stopped to complete the needle replacement, which greatly affects efficiency. Utility Model Content

[0004] The purpose of the present utility model is to provide a method to solve the problem proposed in the above background technology that when a needle is used to test PCB contacts for a long time, the needle tip will wear out, causing the needle tip to become blunt, resulting in incomplete contact with the contacts, or continuous contact with multiple contacts, causing detection errors, and requiring the detection line to be stopped to complete the replacement of the needle, which greatly affects efficiency.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a two-wire pointed needle head for a flying probe tester, comprising a mounting plate and a mounting seat provided at an upper position of the mounting plate;

[0006] A needle body is provided at the upper side of the mounting seat;

[0007] A replacement head is provided at the upper right side of the needle body, a needle tip is provided at the upper right side of the replacement head, and a connecting rod is provided at the connection position of the replacement head and the needle body.

[0008] Preferably, there are two connecting rods in total, and the two connecting rods are connected to the replacement head by welding an integrated connection method.

[0009] Preferably, the replacement head is connected to the needle body by two connecting rods in a snap-fit ​​connection manner, and the connecting rods, the replacement head and the needle body are respectively made of conductive materials.

[0010] Preferably, two fixing holes are respectively provided at the upper and lower ends of the middle inner side of the mounting plate, and spring sheets are provided at the inner sides of the fixing holes.

[0011] Preferably, the spring piece is arranged in an inclined state, and a card cavity engaged with the spring piece is provided on one side of the fixing hole.

[0012] Preferably, the mounting seat is connected to the mounting plate by an integrated welding connection, and the needle body is connected to the mounting seat by a bolt connection.

[0013] Compared with the prior art, the present invention provides a two-wire pointed needle for a flying probe tester, which has the following beneficial effects:

[0014] The utility model has the following advantages through the arrangement of the needle tip, the connecting rod, the replacement head, the spring sheet and the card cavity:

[0015] Reduce maintenance costs and increase flexibility

[0016] Low-cost replacement solution: The design allows for individual replacement of damaged components rather than the entire assembly, significantly reducing maintenance costs, especially in high-frequency production environments.

[0017] Enhanced modularity and versatility: The flexible design of the interchangeable heads means that the most appropriate needle configuration can be quickly adapted to different testing scenarios, enhancing the versatility and adaptability of the device.

[0018] Maintain high-precision detection: Timely replacement ensures the sharpness of the needle tip, prevents false positive errors caused by poor contact or accidentally touching multiple contacts, and ensures the accuracy of PCB detection.

[0019] Improve installation ease and stability

[0020] Convenient installation experience: The combination of spring sheet and card cavity achieves automatic locking effect, simplifying the installation process. Even non-professional technicians can complete the installation work efficiently.

[0021] Ensure long-term stability: The self-locking mechanism of the spring leaf provides additional security, ensuring that the mounting plate is stable and reliable even in vibrating environments, extending the life of the equipment and reducing subsequent maintenance.

[0022] In summary, the above-mentioned design innovations not only optimize the working performance of the flying probe tester, but also greatly improve the user experience, taking into account both economic benefits and production efficiency, and demonstrating obvious practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1This is a schematic diagram of the structure of a two-wire pointed needle for a flying probe tester proposed by the present invention;

[0025] Figure 2 The utility model proposes Figure 1 The schematic diagram of the structure after the upper right circular area is enlarged;

[0026] Figure 3 The utility model proposes Figure 1 Schematic diagram of the structure after the middle circular area is enlarged;

[0027] Figure 4 This is a schematic diagram of the structure of the replacement head proposed in the utility model;

[0028] In the figure: 1. Mounting plate; 2. Fixing hole; 3. Mounting seat; 4. Needle body; 5. Needle tip; 8. Connecting rod; 9. Replacement head; 10. Spring sheet; 11. Card cavity. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 creative efforts are within the scope of protection of the present invention.

[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] See also Figure 1-4, the utility model provides a technical solution: a two-wire pointed needle head of a flying probe tester, comprising a mounting plate 1 and a mounting seat 3 arranged at an upper position of the mounting plate 1;

[0033] A needle body 4 is provided at the upper side of the mounting seat 3;

[0034] A replacement head 9 is provided at the upper right side of the needle body 4 , a needle tip 5 is provided at the upper right side of the replacement head 9 , and a connecting rod 8 is provided at the connection position between the replacement head 9 and the needle body 4 .

[0035] In this embodiment, the principle of use

[0036] The flying probe tester's two-wire pointed needle adopts a modular replaceable mechanism, the core of which is to facilitate the replacement and maintenance of the needle, improve test efficiency and reduce maintenance costs. Specifically:

[0037] Replacement head mechanism: The replacement head 9 can be removed from the needle body 4 as a whole to facilitate complete replacement of the entire needle part, which further improves the adaptability and service life of the needle.

[0038] Improved installation stability: The spring sheet 10 provided in the fixing hole 2 on the mounting plate 1 allows the spring sheet to deform and lock the bolt when pressure is applied by the bolt during installation, thereby ensuring that the mounting plate is firmly fixed to the test equipment and avoiding loosening due to vibration or external force.

[0039] How to use

[0040] Replace the needle tip

[0041] Check for wear: Check the wear of the needle tip 5 regularly and prepare to replace it immediately if wear or damage is found.

[0042] replace

[0043] If the entire replacement head 9 needs to be replaced, the needle tip portion is first disassembled.

[0044] The replacement head 9 is removed from the needle body 4 and a new part is assembled.

[0045] Installation Process

[0046] Position the mounting plate: Determine the area where the mounting plate 1 needs to be fixed to ensure that it fits accurately with the corresponding position of the test equipment.

[0047] Pre-tightening

[0048] Insert the fixing bolt into the fixing hole 2.

[0049] The bolts are preliminarily tightened using a tool, at which point the spring leaf 10 is compressed and deformed.

[0050] Final fixation

[0051] Continue tightening the bolts until they are fully secured.

[0052] The spring sheet 10 recovers its deformation and locks the bolt through the clamping cavity 11 to ensure that the mounting plate 1 is firmly in place.

[0053] This design greatly simplifies the maintenance process, ensures the accuracy and efficiency of testing, and reduces operating costs through modular design.

[0054] like Figure 1-4 As shown, there are two connecting rods 8, and the two connecting rods 8 are connected to the replacement head 9 by an integrated welding connection method. The replacement head 9 is connected to the needle body 4 by a snap-in connection method through the two connecting rods 8. The connecting rod 8, the replacement head 9 and the needle body 4 are respectively made of conductive materials. Two fixing holes 2 are respectively provided at the upper and lower ends of the middle inner side of the mounting plate 1. A spring sheet 10 is provided at the inner side of the fixing hole 2. The spring sheet 10 is set in an inclined state, and a card cavity 11 that is embedded with the spring sheet 10 is provided on one side of the fixing hole 2. The mounting seat 3 is connected to the mounting plate 1 by an integrated welding connection method, and the needle body 4 is connected to the mounting seat 3 by a bolt connection method.

[0055] Preferably, when the operator uses the needle to test the PCB contacts for a long time, the needle tip will wear out, causing the needle tip to become blunt, resulting in incomplete contact with the contacts, or continuous contact with multiple contacts, causing detection errors. In this new type, the operator can remove the replacement head 9 from the needle body 4 for replacement, reducing replacement costs;

[0056] When the operator needs to replace a new mounting plate 1, it is necessary to fix the fixing hole 2 at the mounting plate 1 to a fixed position with the test equipment. When the fixing bolt is inserted into the fixing hole 2, the spring piece 10 can be squeezed by the fixing bolt, and the elastic force of the spring piece 10 is released to fix the fixing bolt into the fixing hole 2, while keeping the mounting plate 1 stable, thereby making installation more convenient. When the fixing bolt is completely inserted into the fixing hole 2, it will press the spring piece 10 into the card cavity 11 without affecting the fixation.

[0057] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-wire pointed needle head for a flying probe tester, comprising a mounting plate (1) and a mounting seat (3) arranged at an upper side of the mounting plate (1); A needle body (4) is provided at the upper side of the mounting seat (3); Its characteristics are: A replacement head (9) is provided at the upper right side of the needle body (4), a needle tip (5) is provided at the upper right side of the replacement head (9), and a connecting rod (8) is provided at the connection position between the replacement head (9) and the needle body (4).

2. The two-wire pointed needle head for a flying probe tester according to claim 1, characterized in that: Two connecting rods (8) are provided in total, and the two connecting rods (8) are connected to the replacement head (9) by means of an integrated welding connection.

3. The two-wire pointed needle head for a flying probe tester according to claim 2, characterized in that: The replacement head (9) is connected to the needle body (4) via two connecting rods (8) in a snap-fit ​​connection manner, and the connecting rods (8), the replacement head (9) and the needle body (4) are respectively made of conductive materials.

4. The two-wire pointed needle head for a flying probe tester according to claim 3, characterized in that: Two fixing holes (2) are respectively provided at the upper and lower ends of the middle inner side of the mounting plate (1), and a spring sheet (10) is provided at the inner side of the fixing hole (2).

5. The two-wire pointed needle head for a flying probe tester according to claim 4, characterized in that: The spring piece (10) is arranged in an inclined state, and a clamping cavity (11) engaged with the spring piece (10) is provided on one side of the fixing hole (2).

6. The two-wire pointed needle head for a flying probe tester according to claim 1, characterized in that: The mounting seat (3) is connected to the mounting plate (1) by means of an integrated welding connection, and the needle body (4) is connected to the mounting seat (3) by means of a bolt connection.

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