PCB board burning test fixture

Abstract

The utility model discloses a kind of PCB board burning test fixture, comprising: fixture body, burning test piece and press-down module, fixture body includes base, guiding positioning piece, buffer elastic member and locating block, guiding positioning piece is worn on base, and one end of guiding positioning piece is connected with locating block, buffer elastic member is connected between base and locating block, locating block is equipped with locating groove;Burning test piece is installed on fixture body, and the connecting end of burning test piece is located on locating groove;Press-down module is located above fixture body, when locating groove is placed with PCB board, press-down module is used to carry out press-down operation to PCB board.Thus, it can be kept steady movement when locating block is under pressure by the cooperation of guiding positioning piece and buffer elastic member, avoid uneven stress of PCB board;It can also absorb excessive pressure by buffer elastic member, prevent the problem of overpressure damage of PCB board, improve production efficiency simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of PCB board manufacturing technology, and in particular to a PCB board programming and testing fixture. Background Technology

[0002] In the field of electronics manufacturing, after the PCB (printed circuit board) is soldered and assembled, it usually needs to be fixed, programmed and functionally tested to ensure that it meets the design requirements and can operate normally.

[0003] Traditional PCB programming and testing fixtures are typically quite simple. When installing and securing the PCB, manual pressure is usually required. This method is not only inefficient but also prone to uneven force application, which can damage the PCB. Other fixtures use pressure devices to press down on the PCB, but this pressure application can lead to overpressure damage due to dimensional or mechanical deviations in the PCB.

[0004] In view of the above, a PCB board programming and testing fixture is proposed to reduce PCB board damage and improve production efficiency. Utility Model Content

[0005] The purpose of this invention is to overcome at least one deficiency in the prior art and provide a PCB board programming and testing fixture to reduce PCB board damage and improve production efficiency.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A PCB board programming test fixture includes: a fixture body, a programming test piece, and a pressing module. The fixture body includes a base, a guide positioning component, a buffer elastic component, and a positioning block. The guide positioning component is disposed on the base, and one end of the guide positioning component is connected to the positioning block. The buffer elastic component is connected between the base and the positioning block. A positioning groove is formed on the positioning block. The programming test piece is mounted on the fixture body, and the connecting end of the programming test piece is located on the positioning groove. The pressing module is located above the fixture body. When a PCB board is placed on the positioning groove, the pressing module is used to press down on the PCB board to connect the PCB board with the connecting end.

[0008] In one embodiment, the base is provided with a guide block, the guide block has a guide hole, and the guide positioning member passes through the guide hole.

[0009] In one embodiment, the guide positioning element is a guide post, and four guide posts are provided. Four guide blocks are also provided. One end of each guide post is installed at the four corners of the positioning block, and each guide post passes through the guide hole on each guide block.

[0010] In one embodiment, the cushioning elastic element includes four springs, the center line of which forms a quadrilateral structure.

[0011] In one embodiment, the positioning block is detachably connected to the base.

[0012] In one embodiment, the positioning groove is provided with a positioning post, and the PCB board is provided with a positioning through hole that matches the positioning post.

[0013] In one embodiment, two positioning posts are provided, and the two positioning posts are arranged opposite to each other.

[0014] In one embodiment, the positioning block is further provided with an avoidance groove, which is connected to the positioning groove.

[0015] In one embodiment, the programming test piece includes multiple connection probes, and the PCB board has multiple connection through holes that match each of the connection probes, with each connection probe passing through each of the connection through holes.

[0016] In one embodiment, the pressing module includes a pressing drive and a pressing component. The pressing drive is connected to the pressing component, and the pressing drive is used to drive the pressing component to move up and down, so that the pressing component pushes the PCB board to form a connection with the connection end of the programming test piece.

[0017] Compared with the prior art, the present invention has at least the following advantages:

[0018] This utility model's PCB board programming test fixture, through the fixture body, programming test piece, and pressure module, enables the positioning block to maintain stable movement under downward pressure through the cooperation of guide positioning parts and buffer elastic parts, avoiding uneven force on the PCB board; it can also absorb excessive pressure through the buffer elastic parts, playing a role in pressure buffering, preventing overpressure damage to the PCB board, and improving production efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.

[0020] Figure 1This is a schematic diagram of the PCB board programming and testing fixture in one embodiment of the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the guide positioning component, positioning block, and burning test piece of the PCB board burning test fixture;

[0022] Figure 3 for Figure 1 A schematic diagram of the base, buffer elastic element, and burning test piece of the PCB board burning test fixture;

[0023] Figure 4 for Figure 1 A schematic diagram of the pressing module of the PCB board programming test fixture; Detailed Implementation

[0024] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0025] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a PCB board 20 programming test fixture 10 includes: a fixture body 100, a programming test piece 200, and a pressing module 300. The fixture body 100 includes a base 110, a guide positioning member 120, a buffer elastic member 130, and a positioning block 140. The guide positioning member 120 passes through the base 110, and one end of the guide positioning member 120 is connected to the positioning block 140. The buffer elastic member 130 is connected between the base 110 and the positioning block 140. A positioning groove 141 is provided on the positioning block 140. The programming test piece 200 is installed on the fixture body 100, and the connecting end of the programming test piece 200 is located on the positioning groove 141. The pressing module 300 is located above the fixture body 100. When the PCB board 20 is placed on the positioning groove 141, the pressing module 300 is used to press down on the PCB board 20 so that the PCB board 20 is connected to the connecting end.

[0026] It should be noted that the PCB board programming test fixture 20 is installed on the corresponding programming test equipment. When performing programming tests on the PCB board 20, the PCB board 20 can first be manually placed on the positioning groove 141 of the fixture body 100. The positioning groove 141 performs initial positioning of the PCB board 20, and at the same time, aligns the connecting end of the programming test piece 200 with the corresponding connecting end of the PCB board 20. Then, the pressing module 300 presses down on the PCB board 20, so that the PCB board 20 and the connecting end are connected. For example, in this embodiment, the programming test piece 200 includes multiple connecting probes. The PCB board 20 has multiple connecting through holes that match each connecting probe. Each connecting probe passes through each connecting through hole. That is, by pressing down on the PCB board 20 by the pressing module 300, the connecting end of the connecting probe passes through each connecting through hole of the PCB board 20, thereby connecting the connecting probe and the PCB board 20. At the same time, the design of multiple connecting probes can improve the contact reliability. To ensure stable signal transmission, during the pressing process, to prevent damage to the PCB board 20 due to overpressure, a guide positioning component 120 and a buffer elastic component 130 are provided between the base 110 and the positioning block 140. A buffer gap is formed between the base 110 and the positioning block 140. When the pressing module 300 presses down on the PCB board 20, the positioning block 140 moves under the downward pressure. At this time, the guide positioning component 120 connected to the positioning block 140 slides relative to the base 110, and the buffer elastic component 130 is compressed. The buffer elastic component 130 can absorb excessive pressure and reduce the risk of overpressure damage to the PCB board 20. In addition, through the cooperation of the guide positioning component 120 and the buffer elastic component 130, the positioning block 140 can also maintain stable movement when subjected to downward pressure, ensuring the accuracy of the vertical movement of the positioning block 140, avoiding positional displacement of the positioning block 140 that could damage the PCB board 20, and also preventing damage to the PCB board 20 due to uneven force.

[0027] Furthermore, a component clearance groove is provided on the positioning groove 141 to provide clearance space for protruding components on the PCB board 20 and prevent them from being crushed.

[0028] In one embodiment, a guide block 111 is provided on the base 110, and the guide block 111 has a guide hole 111a, through which the guide positioning member 120 passes.

[0029] It should be noted that the guide block 111 and the base 110 are detachable. For example, the guide block 111 can be installed on the base 110 using bolts, screws, or other threaded fasteners. At the same time, the base 110 has a clearance groove for installing the guide block 111, which ensures the compactness of the structure. In addition, by adding the guide block 111, the guide block 111 can be replaced. When the guide block 111 suffers friction damage after long-term use, the guide block 111 can be directly replaced without scrapping the entire fixture, thus improving the service life of the fixture. Furthermore, in this embodiment, the guide positioning component 120 is a guide post, and four guide posts are provided, and four guide blocks 111 are provided. One end of each guide post is installed at the four corners of the positioning block 140, and each guide post passes through the guide hole 111a on each guide block 111. The four-corner guide structure formed by the four guide positioning posts and the four guide blocks 111 can ensure that the positioning block 140 moves more smoothly and prevents skewing. At the same time, the quadrilateral layout can improve mechanical stability and ensure that the PCB board is subjected to uniform force.

[0030] Furthermore, in one embodiment, at least two of the guide posts are provided with limiting protrusions 121, which are located on the side of the base 110 away from the positioning block 140, and the two guide posts are located at the two corners on the diagonal line, thereby limiting the movement of the positioning block 140.

[0031] In one embodiment, the cushioning elastic element includes four springs, the center line of which forms a quadrilateral structure. The quadrilateral spring layout structure makes the pressure distribution more uniform and improves reliability.

[0032] In one embodiment, the positioning block 140 is detachably connected to the base 110. This facilitates the replacement of positioning blocks 140 of different specifications, thereby matching the programming tests of PCB boards 20 of different sizes. Specifically, a threaded hole is provided on the end of the guide post away from the base 110, and the end of the guide post away from the base 110 passes through the positioning block 140. Thus, it can be installed into the threaded hole of the guide positioning post by bolts, screws, or other threaded fasteners, thereby making the positioning block 140 and the guide post detachably connected, and consequently, making the base 110 and the positioning block 140 detachably connected.

[0033] In one embodiment, a positioning post 141a is provided on the positioning groove 141, and a positioning through hole matching the positioning post 141a is provided on the PCB board 20. In this way, the position of the PCB board 20 can be accurately positioned, thereby ensuring the accurate alignment of the connection probe and avoiding damage to the connection probe caused by the positional deviation of the PCB board 20.

[0034] In one embodiment, two positioning posts 141a are provided, and the two positioning posts 141a are arranged opposite to each other. The two-point positioning method is simple and reliable, which facilitates the rapid positioning of the PCB board 20, while avoiding the problem of position movement of the PCB board 20.

[0035] In one embodiment, the positioning block 140 is further provided with a clearance groove 142, which communicates with the positioning groove 141. This facilitates the operator in picking up and placing the PCB board 20, improving convenience.

[0036] In one embodiment, the pressing module 300 includes a pressing drive and a pressing component 310. The pressing drive is connected to the pressing component 310, and the pressing drive is used to drive the pressing component 310 to move up and down, so that the pressing component 310 pushes the PCB board 20 to form a connection with the connection end of the programming test piece 200. For example, the pressing drive can be a cylinder or the like to achieve precise pressure control. Specifically, the pressing component 310 includes a mounting block 311 and multiple pressing posts 312. One end of each pressing post 312 is mounted on the mounting block 311, and the other end of each pressing post 312 faces the PCB board 20. The pressing posts 312 are made of rubber. Using the pressing posts 312 for pressing can reduce the contact area with the PCB board 20 and avoid the components on the PCB board 20, thus avoiding damage to the components. At the same time, the pressing posts 312 are made of rubber, which can further protect the PCB board 20 and prevent damage to the PCB board 20, while also achieving local overvoltage protection. In addition, multiple pressing posts 312 can ensure the uniform distribution of the pressing force.

[0037] Furthermore, the pressing module 300 also includes a pressing guide rod 320 and a fixing plate 330. One end of the pressing guide rod 320 is mounted on the fixing plate 330, and the pressing guide rod 320 slides through the mounting block 311. The pressing drive is connected to the mounting block 311, and the fixing plate 330 remains stationary. The pressing drive drives the mounting block 311 to move up and down along the pressing guide rod 320, thereby ensuring the accuracy and stability of the moving position of the pressing component 310.

[0038] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A PCB board burning test fixture, characterized in that, Include: Jig body, the jig body includes base, guide positioning piece, buffer elastic piece and positioning block, the guide positioning piece is threaded on the base, and one end of the guide positioning piece is connected with the positioning block, the buffer elastic piece is connected between the base and the positioning block, a positioning groove is formed on the positioning block; Burn test piece, the burn test piece is installed on the jig body, and the connecting end of the burn test piece is located on the positioning groove; And The lower pressing module is located above the jig body, when the positioning groove is placed with the PCB board, the lower pressing module is used for pressing the PCB board to form a connection between the PCB board and the connecting end.

2. The PCB board burning test fixture of claim 1, wherein, The base is provided with a guide block, the guide block is provided with a guide hole, and the guide positioning piece is threaded in the guide hole. 3.The PCB board burning test fixture of claim 2, wherein, The guide positioning piece is a guide column, the guide column is provided with four, and the guide block is provided with four, one end of each guide column is respectively installed at the four corner ends of the positioning block, and each guide column is threaded in the guide hole on each guide block.

4. The PCB board burning test fixture of claim 1, wherein, The buffer elastic piece includes four springs, and the center line of the four springs forms a quadrilateral structure.

5. The PCB board burning test fixture of claim 1, wherein, The positioning block and the base form a detachable connection.

6. The PCB board burning test fixture of claim 1, wherein, The positioning groove is provided with a positioning column, and the PCB board is provided with a positioning through hole matched with the positioning column.

7. The PCB board burning test fixture of claim 6, wherein, The positioning column is provided with two, and the two positioning columns are oppositely arranged. 8.The PCB board burning test fixture of claim 1, wherein, The positioning block is also provided with a recess, and the recess is communicated with the positioning groove.

9. The PCB board burning test fixture of claim 1, wherein, The burn test piece includes a plurality of connecting probes, the PCB board is provided with a plurality of connecting through holes matched with each connecting probe, and each connecting probe is threaded on each connecting through hole.

10. The PCB burning test fixture of any one of claims 1-9, wherein, The lower pressing module includes a lower pressing driving piece and a lower pressing piece, the lower pressing driving piece is connected with the lower pressing piece, the lower pressing driving piece is used to drive the lower pressing piece to move up and down, so that the lower pressing piece pushes the PCB board to form a connection with the connecting end of the burn test piece.

Images