Machining jig of needle die for point screen test

Abstract

The utility model discloses a processing jig of a needle die for a point screen test. The processing jig comprises a cover plate and a base, the lower end face of the cover plate covers the upper end face of the base, a needle die embedding groove is formed in the lower end face of the cover plate, and a test needle die used for achieving test work is installed in the needle die embedding groove. The upper end face of the cover plate is provided with a PCB, and the PCB is electrically connected with the test needle die. A positioning caulking groove is formed in the upper end face of the base, a positioning block used for achieving FPC positioning work is installed in the positioning caulking groove, and an installation position used for placing an FPC is arranged on the positioning block. A group of mounting cover plates are also arranged on the positioning block and are mounted on the positioning block in a screw connection manner; the novel needle mold jig structure can achieve the effects of preventing the FPC from tilting and achieving high-precision and stable testing under the condition that no vacuum equipment exists; compared with a traditional test structure, the whole structure is simpler and more effective, the test cost is lower, and the application range is wider.

Description

Technical Field

[0001] The utility model belongs to the technical field of test jigs and relates to a processing jig for a needle mold used for dot screen testing. Background Art

[0002] Modern electronic devices require highly integrated circuits and tiny components, which necessitate precision manufacturing and testing tools. Fixtures are used to ensure the correct assembly and connection of electronic components. For example, in mobile phone manufacturing, fixtures are used to automate the assembly and testing of various components, including screens, cameras, and batteries. Pin mold fixtures play a key role in the manufacturing and processing process, ensuring product accuracy, quality, and reliability. Precision pin mold fixtures are crucial tools for manufacturing tiny electronic components; a good pin mold fixture can significantly improve production efficiency and product performance.

[0003] The problem with the existing technology is that when the needle mold in the current point screen test only has a gold finger at the test site, in order to ensure the stability of the test, it is necessary to use vacuum equipment to adsorb the FPC (flexible circuit board). This testing method has high requirements for the test environment and the test cost. Therefore, how to ensure that the FPC does not warp during the test and achieve a stable test effect when vacuum suction equipment is not available is a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A processing jig for a pin mold for a dot screen test comprises: a cover plate and a base; the lower end surface of the cover plate covers the upper end surface of the base, and the lower end surface of the cover plate is formed with a pin mold embedding groove, in which a test pin mold for implementing a test is installed; the upper end surface of the cover plate is provided with a PCB board, and the PCB board is electrically connected to the test pin mold;

[0006] The upper end surface of the base is formed with a positioning groove, in which a positioning block for realizing the positioning of the FPC is installed, and the positioning block is provided with a mounting position for placing the FPC;

[0007] The positioning block is also provided with a set of mounting cover plates, which are mounted on the positioning block by means of screw connections.

[0008] As a further solution of the present invention: a pin hole for installing a pin is provided on the installation cover, and a corresponding positioning hole is provided at a corresponding position of the test pin mold.

[0009] As a further solution of the present invention, the cover plate and one side of the base are connected and matched using a hinged structure.

[0010] As a further solution of the present invention: a mounting buckle is provided on the other side of the base, and a buckle groove corresponding to the mounting buckle is provided on the other side of the cover.

[0011] The beneficial effects of the utility model are as follows: the new needle mold fixture structure can prevent FPC from warping and achieve high-precision and stable testing without vacuum equipment; compared with the traditional test structure, the overall structure is simpler and more effective, the test cost is lower, and the scope of use is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the utility model. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. It should be understood that this application is not limited to the example embodiments disclosed herein. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0014] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", 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 invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0015] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0016] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0017] See also Figure 1 In an embodiment of the present invention, a processing jig for a needle mold for a point screen test includes: a cover plate 4 and a base 5; the lower end surface of the cover plate 4 covers the upper end surface of the base 5, and the lower end surface of the cover plate 4 is formed with a needle mold embedding groove 2, in which a test needle mold 3 for implementing the test work is installed; the upper end surface of the cover plate 4 is provided with a PCB board 1, the PCB board 1 is electrically connected to the test needle mold 3, and the test needle mold 3 is connected to the test equipment through the PCB board 1;

[0018] The upper end surface of the base 5 is formed with a positioning groove 6, in which a positioning block 8 for realizing the positioning of the FPC is installed. The positioning block 8 is provided with a mounting position 81 for placing the FPC;

[0019] A set of mounting cover plates 4 are also provided on the positioning block 8, and the mounting cover plates 4 are mounted on the positioning block 8 by screw connection;

[0020] During the test, the FPC to be tested is placed on the mounting position 81 of the positioning block 8, and the mounting cover 4 is pressed on the positioning block 8. The size of the cover 4 is determined by the product FPC. By installing the cover 4, the position other than the gold finger part of the FPC is pressed to prevent the FPC from warping.

[0021] Then, the cover plate 4 is covered on the bottom plate, the probe of the test needle mold 3 is connected to the gold finger part of the FPC, and the screen test is performed through the test equipment.

[0022] Furthermore, a pin hole 91 for pin installation is provided on the installation cover 4, and a corresponding positioning hole 31 is provided at the corresponding position of the test needle mold 3; thereby ensuring that when the cover 4 and the base 5 are matched, the probe of the test needle mold 3 can accurately contact the gold finger part of the FPC, and achieve the effect of reducing the offset between the two during the fastening process.

[0023] Preferably, the cover plate 4 and one side of the base 5 are connected and matched using a hinged structure. During testing, the cover plate 4 can be flipped over to cover the base 5 for testing; and the hingedly connected cover plate 4 and base 5 can ensure that the test needle mold 3 and the positioning block 8 remain in a fixed relative position, thereby improving the accuracy of the detection work.

[0024] Furthermore, a mounting buckle 7 is provided on the other side of the base 5, and a buckle groove 10 corresponding to the mounting buckle 7 is provided on the other side of the cover 4. By cooperating with the mounting buckle 7 and the buckle groove 10, the cover 4 and the base 5 are buckled and fixed together to ensure that the contact will not be disconnected during the test.

[0025] It should also be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0026] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A processing jig for a needle mold for dot screen testing, characterized in that: include: The cover plate and the base; the lower end surface of the cover plate covers the upper end surface of the base, and the lower end surface of the cover plate is formed with a pin mold embedding groove, in which a test pin mold for implementing the test work is installed; the upper end surface of the cover plate is provided with a PCB board, and the PCB board is electrically connected to the test pin mold; The upper end surface of the base is formed with a positioning groove, in which a positioning block for realizing the positioning of the FPC is installed, and the positioning block is provided with a mounting position for placing the FPC; The positioning block is also provided with a set of mounting cover plates, which are mounted on the positioning block by means of screw connections.

2. A processing jig for a needle mold for dot screen testing according to claim 1, characterized in that: The installation cover is provided with pin holes for pin installation, and the corresponding positions of the test pin molds are provided with corresponding positioning holes.

3. The processing jig for the needle mold for dot screen testing according to claim 1, characterized in that: The cover plate and one side of the base are connected and matched using a hinged structure.

4. A processing jig for a needle mold for dot screen testing according to claim 3, characterized in that: A mounting buckle is provided on the other side of the base, and a buckle groove corresponding to the mounting buckle is provided on the other side of the cover.

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