Circuit board AOI detection fixture

Abstract

The utility model relates to circuit board AOI detection fixture technical field, and disclose a kind of circuit board AOI detection fixture, including mould, the side symmetry of mould is provided with a plurality of limit stopper, and is provided with limit assembly between adjacent limit stopper, the corner of mould is equipped with support assembly, the support assembly includes connecting support, the bottom of connecting support is provided with screw groove, the inner wall of screw groove is connected with adjusting screw, the bottom of adjusting screw is equipped with cross support leg. The titanium alloy synthetic stone fixture passes through adjustable cross support leg elastic support, spring buffer limit clamping and sucker adsorption flexible fixing triple dynamic protection structure, while ensuring the stability of welding, solve the mechanical damage risk of traditional rigid pressure buckle to circuit board, ensure yield rate.

Description

Technical Field

[0001] This utility model relates to the field of circuit board AOI inspection fixture technology, and in particular to a circuit board AOI inspection fixture. Background Technology

[0002] Circuit board AOI inspection fixtures are auxiliary tooling used to hold motherboards to facilitate inspection by testing equipment. In actual operation, the circuit board is forcibly pressed against the bottom of the fixture. Due to the lack of elastic support structure, excessive local pressure can cause damage to components. At the same time, uneven pressure can easily cause abnormal solder flow, resulting in soldering defects such as bridging. Therefore, the existing fixture method of fixing circuit boards can easily cause damage to the circuit board. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] To address the aforementioned problems, this utility model provides the following technical solution:

[0005] A circuit board AOI inspection fixture includes a mold, a plurality of limiting blocks are symmetrically arranged on one side of the mold, and a limiting component is provided between adjacent limiting blocks. A support component is provided at the corner of the mold.

[0006] The support assembly includes a connecting rod, the bottom of which has a threaded groove, and the inner wall of the threaded groove is threaded with an adjusting screw, the bottom of which has a cross-shaped support foot.

[0007] Preferably, the limiting component includes a telescopic support rod, a limiting plate is provided at the top of the telescopic support rod, one end of a return spring is connected to the top of the telescopic support rod, the other end of the return spring is connected to the bottom of the limiting plate, and the return spring is movably wrapped around the outside of the telescopic support rod. A clamping pad is provided on one side of the bottom of the limiting plate.

[0008] Preferably, the cross-shaped support foot is symmetrically provided with connecting holes, and a matching connecting rod is slidably provided on the inner wall of the connecting hole. A fastening suction cup is provided at the bottom end of the connecting rod, and a button is provided at the top end of the connecting rod.

[0009] Preferably, the center of the cross-shaped support is provided with a rotating hole adapted to the rotating shaft, the adjusting screw is rotatably connected to the rotating hole by the rotating shaft, and the bottom end of the adjusting screw is provided with the rotating shaft.

[0010] Preferably, an auxiliary side plate is provided on one side of the outer wall of the mold, and an auxiliary side plate is also provided on the other side of the outer wall of the mold.

[0011] Preferably, welding holes are provided between the limiting blocks, and anti-welding titanium alloy blocks are provided between the welding holes.

[0012] Preferably, an auxiliary support block is provided on one side of the limiting block, and an auxiliary support block is also provided on the other side of the limiting block.

[0013] The beneficial effects of this utility model are: 1. The circuit board AOI inspection fixture, through the connecting rod, facilitates the welding support of the mold, prevents pressure on the circuit board components during the welding process, and can reduce the risk of component damage due to pressure. The hand-held adjusting screw can be rotated inside the screw groove to easily adjust the support height. The rotating shaft can easily drive the cross foot to rotate, making it easy to adjust the support angle of the cross foot. The cross foot helps to expand the support and improve the stability of the support. By pressing down the connecting rod through the button, the fastening suction cup is driven to adhere to the processing table, which helps to fix the cross foot, thereby improving the welding stability.

[0014] 2. This AOI inspection fixture for circuit boards uses four limiting blocks to easily limit the four corners of the circuit board. The telescopic support rod, through a return spring and the limiting plate, fixes the edges and corners of the circuit board, facilitating clamping and fixing of the circuit board during soldering. The limiting plate contacts the circuit board with a clamping pad, reducing the pressure of the spring on the circuit board and providing clamping protection. It is convenient and quick. The auxiliary side plate supports the mold during soldering. The soldering hole facilitates soldering of the circuit board. The solder resist titanium alloy block is used for soldering before the physical isolation component PIN, which can reduce the occurrence of poor solder joints. The auxiliary support block supports the mold. It is suitable for soldering circuit boards of different heights.

[0015] 3. This titanium alloy synthetic stone fixture features a triple dynamic protection structure consisting of adjustable cross-shaped support legs, spring-loaded limit clamping, and suction cup adsorption for flexible fixation. This ensures welding stability while mitigating the risk of mechanical damage to the circuit board caused by traditional rigid clamps, thus guaranteeing a high yield rate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the support component structure of this utility model;

[0019] Figure 3 This is a partial structural diagram of the present invention;

[0020] Figure 4 This is an exploded view of the support component of this utility model;

[0021] Figure 5 This is a schematic diagram of the limiting component structure of this utility model.

[0022] In the figure: mold 100, limiting component 200, telescopic support rod 201, limiting plate 202, return spring 203, clamping pad 204;

[0023] Support component 300, connecting rod 301, screw groove 302, adjusting screw 303, rotating shaft 304, cross support foot 305, rotating hole 306, connecting clip hole 307, connecting rod 308, fastening suction cup 309, button 310;

[0024] Auxiliary side plate 400, limit block 500, welding hole 600, anti-weld titanium alloy block 700, auxiliary support block 800. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0028] Reference Figures 1 to 5This is an embodiment of the present utility model. This embodiment provides a circuit board AOI inspection fixture, including a mold 100. A plurality of limiting blocks 500 are symmetrically arranged on one side of the mold 100, and a limiting component 200 is arranged between adjacent limiting blocks 500. A support component 300 is provided at the corner of the mold 100.

[0029] The support assembly 300 includes a connecting rod 308, the bottom of which is provided with a threaded groove 302, and the inner wall of the threaded groove 302 is threaded with an adjusting screw 303, and the bottom of the adjusting screw 303 is provided with a cross foot 305.

[0030] Specifically, four limiting blocks 500 are symmetrically arranged on one side of the mold 100, and limiting components 200 are symmetrically arranged on one side of the mold 100, with the limiting components 200 positioned between the limiting blocks 500. Support components 300 are arranged at the four corners of one side of the mold 100. Each support component 300 includes a connecting rod 308, with a threaded groove 302 at the bottom of the connecting rod 308. An adjusting screw 303 is threaded onto the inner wall of the threaded groove 302. A cross-shaped support foot 305 is provided at the bottom of the adjusting screw 303, and a rotating shaft 304 is provided at the bottom end of the adjusting screw 303. A rotating hole 306, matching the rotating shaft 304, is provided at the center of the cross-shaped support foot 305. The adjusting screw 303 is rotatably connected to the rotating shaft 304 and the rotating hole 306. Connecting holes 307 are symmetrically arranged on the cross-shaped support foot 305. The inner wall of 307 is slidably equipped with a matching connecting rod 308. The bottom end of the connecting rod 308 is equipped with a fastening suction cup 309, and the top end of the connecting rod 308 is equipped with a button 310. The connecting rod 308 facilitates the welding support of the mold 100, preventing pressure on the circuit board components during the welding process and reducing the risk of component damage. The hand-held adjusting screw 303 can be rotated inside the screw groove 302 to easily adjust the support height. The rotating shaft 304 can easily drive the cross foot 305 to rotate, facilitating the adjustment of the support angle of the cross foot 305. The cross foot 305 helps to expand the support and improve the stability of the support. By pressing down the connecting rod 308 through the button 310, the fastening suction cup 309 is driven to adhere to the processing table, which helps to fix the cross foot 305, thereby improving the welding stability.

[0031] The limiting component 200 includes a telescopic support rod 201. A limiting plate 202 is provided at the top of the telescopic support rod 201. One end of a return spring 203 is connected to the top of the telescopic support rod 201, and the other end of the return spring 203 is connected to the bottom of the limiting plate 202. The return spring is movably wrapped around the outside of the telescopic support rod 201. A clamping pad 204 is provided on one side of the bottom of the limiting plate 202. The mold 100 uses four limiting blocks 500 to limit the four corners of the circuit board. The telescopic support rod 201, in conjunction with the return spring 203 and the limiting plate 202, fixes the corners of the circuit board, facilitating clamping and fixing of the circuit board during soldering. The limiting plate 202 contacts the circuit board through the clamping pad 204, reducing the pressure damage caused by the return spring 203 clamping the circuit board, helping to provide clamping protection, and is convenient and quick.

[0032] An auxiliary side plate 400 is provided on one outer wall of the mold 100, and an auxiliary side plate 400 is also provided on the other outer wall of the mold 100. Welding holes 600 are provided between the limiting blocks 500, and solder resist titanium alloy blocks 700 are provided between the welding holes 600. An auxiliary support block 800 is provided on one side of the limiting block 500, and an auxiliary support block 800 is also provided on the other side of the limiting block 500. The auxiliary side plate 400 facilitates the support of the mold 100 during welding. The welding holes 600 facilitate the soldering of the circuit board. The solder resist titanium alloy block 700 is used for welding before the physical isolation component PIN, which can reduce the situation of poor solder bridging. The auxiliary support block 800 facilitates the support of the mold 100 and is suitable for welding circuit boards of different heights.

[0033] Working principle: First, the connecting rod 308 provides welding support for the mold 100, preventing pressure on circuit board components during welding and reducing the risk of component damage. The hand-held adjusting screw 303 rotates within the screw groove 302 to easily adjust the support height. The rotating shaft 304 drives the cross-shaped support leg 305 to rotate, facilitating adjustment of its support angle. The cross-shaped support leg 305 helps to expand the support and improve stability. The button 310 presses down the connecting rod 308, causing the fastening suction cup 309 to adhere to the processing table, helping to fix the cross-shaped support leg 305 and further improving welding stability. The mold 100 is secured by four limiting blocks 50. The four corners of the circuit board are easily limited. The telescopic support rod 201, in conjunction with the return spring 203 and the limiting plate 202, fixes the corners of the circuit board, making it easy to clamp and fix the circuit board during soldering. The limiting plate 202 contacts the circuit board through the clamping pad 204, reducing the pressure damage of the spring on the circuit board and helping to provide clamping protection. It is convenient and quick. The auxiliary side plate 400 facilitates the support of the mold 100 during soldering. The soldering hole 600 facilitates the soldering of the circuit board. The solder resist titanium alloy block 700 is used for soldering before the physical isolation component PIN, which can reduce the situation of poor solder bridging. The auxiliary support block 800 facilitates the support of the mold 100 and is suitable for soldering circuit boards of different heights.

[0034] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0035] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A circuit board AOI inspection fixture, characterized in that: The mold (100) includes a plurality of limiting blocks (500) symmetrically arranged on one side of the mold (100), and a limiting component (200) is provided between adjacent limiting blocks (500). A support component (300) is provided at the corner of the mold (100). The support assembly (300) includes a connecting rod (308), the bottom of which is provided with a threaded groove (302), the inner wall of which is threaded with an adjusting screw (303), and the bottom of the adjusting screw (303) is provided with a cross foot (305).

2. The circuit board AOI inspection fixture as described in claim 1, characterized in that: The limiting component (200) includes a telescopic support rod (201), a limiting plate (202) is provided at the top of the telescopic support rod (201), one end of a return spring (203) is connected to the top of the telescopic support rod (201), the other end of the return spring (203) is connected to the bottom of the limiting plate (202), and the return spring (203) is movably wrapped around the outside of the telescopic support rod (201). A clamping pad (204) is provided at the bottom of one side of the limiting plate (202).

3. The circuit board AOI inspection fixture as described in claim 1, characterized in that: The cross-shaped support (305) is symmetrically provided with connecting holes (307), and a matching connecting rod (308) is slidably provided on the inner wall of the connecting hole (307). A fastening suction cup (309) is provided at the bottom end of the connecting rod (308), and a button (310) is provided at the top end of the connecting rod (308).

4. The circuit board AOI inspection fixture as described in claim 3, characterized in that: The center of the cross support (305) is provided with a rotating hole (306) that is compatible with the rotating shaft (304). The adjusting screw (303) is rotatably connected to the rotating hole (306) by the rotating shaft (304). The bottom end of the adjusting screw (303) is provided with the rotating shaft (304).

5. The circuit board AOI inspection fixture as described in claim 1, characterized in that: An auxiliary side plate (400) is provided on one side of the outer wall of the mold (100), and an auxiliary side plate (400) is also provided on the other side of the outer wall of the mold (100).

6. The circuit board AOI inspection fixture as described in claim 1, characterized in that: Welding holes (600) are provided between the limiting blocks (500), and anti-welding titanium alloy blocks (700) are provided between the welding holes (600).

7. The circuit board AOI inspection fixture as described in claim 6, characterized in that: An auxiliary support block (800) is provided on one side of the limiting block (500), and an auxiliary support block (800) is also provided on the other side of the limiting block (500).

Images