In the design and manufacture of computer case light board, the accuracy of the mounting hole position is a key factor, which is directly related to whether the light board can be smoothly and accurately installed on the chassis and maintain good stability and adaptability.
1. The importance of accuracy standards
There is no absolutely uniform value for the accuracy of the mounting hole position of computer case light board, because there are differences in the design and manufacturing standards of different chassis. However, there is usually a certain reference range in the industry. Generally speaking, for a standard ATX chassis light board, the tolerance range of the mounting hole position accuracy may be around ±0.5mm. This accuracy requirement is to ensure that the light board and the corresponding mounting holes on the chassis can be accurately aligned. If the accuracy deviation is too large, it will cause installation difficulties. For example, when the hole position deviation exceeds 1mm, the screw may not be able to pass through the mounting hole smoothly, or even if it is forcibly installed, the light board will produce torsional stress, which may cause deformation or even damage to the light board in the long run.
2. Measurement and manufacturing process
The measurement of the mounting hole position accuracy usually uses high-precision measuring tools, such as a three-coordinate measuring instrument. In the manufacturing process of the light board, the drilling process is the key to affecting the accuracy. The use of high-precision CNC drilling machines can effectively control the accuracy of the hole positions. From a design perspective, the CAD model of the light board needs to take into account the accumulated errors in the manufacturing process when determining the hole positions. For example, after the plate is cut, if there is a slight dimensional deviation, it may affect the subsequent hole position accuracy. Therefore, in the production process, the plate is usually accurately positioned and clamped before drilling to reduce errors.
3. Adaptability and versatility
Since computer chassis have a variety of specifications and models, the installation hole position accuracy of the light board also needs to consider a certain degree of versatility. Some chassis light board manufacturers will use adjustable mounting structures to compensate for possible hole position accuracy deviations. For example, a design with long strip mounting holes is used, so that the hole position can be fine-tuned within a certain range to better adapt to the hole positions of different chassis. At the same time, for some high-end custom chassis light boards, the accuracy requirements may be higher, and the tolerance range may be reduced to ±0.2mm to meet the precise installation requirements of specific chassis, ensure the perfect fit between the light board and the chassis, and enhance the overall aesthetics and user experience.
