What factors should be considered in the design of precision hardware?

Material Selection: Precision Hardware Design According to the use requirements and performance characteristics of the product, select the appropriate hardware materials, such as stainless steel, copper alloy, aluminum alloy, titanium alloy, etc. Consider the strength, hardness, toughness, corrosion resistance, electrical conductivity, thermal conductivity and other physical and chemical properties of the material, as well as the processing performance and cost of the material. Accuracy Requirements: Clarify the accuracy indicators of the product, including dimensional accuracy, form and position tolerance, surface roughness, etc. When designing, the processing technology and equipment should be reasonably selected according to the accuracy requirements, and at the same time consider the impact of tolerance distribution and cumulative errors to ensure that the product can achieve the design accuracy. Structural Design: Design a reasonable product structure to ensure that it has sufficient strength and stability to withstand various loads during use. At the same time, it is necessary to consider the machinability and assembly of the structure, avoid complex structures and difficult parts to process, and reduce production costs and production difficulties. Surface treatment: Precision hardware design according to the appearance requirements of the product and the use environment, choose the appropriate surface treatment process, such as electroplating, spraying, oxidation, passivation, etc. Surface treatment can not only improve the corrosion resistance and wear resistance of the product, but also improve the appearance quality of the product and increase the added value of the product. Tolerance fit: Reasonably design the tolerance fit between parts to ensure the assembly accuracy and fit performance between parts. According to the use requirements of the product, choose the appropriate fit type, such as gap fit, transition fit, interference fit, etc., and strictly control the tolerance range to avoid the situation of too loose or too tight assembly.