Marking of precision parts machining drawings
Marking of precision parts machining drawings
精密零件加工图纸的标注
The labeling requirements of precision parts processing drawings are very strict, and they must be clear, accurate and complete to ensure that the precision parts processed meet the design requirements and quality standards.
精密零件加工图纸的标注要求是非常严格的，它们必须清晰、准确、完整，以确保加工的精密零件符合设计要求和质量标准。
The following are some common requirements for precision parts processing drawings:
以下是一些常见的精密零件加工图纸标注要求：
1. Dimensioning: dimensioning must be accurate, clear and complete, including basic dimensions, tolerance dimensions and positioning dimensions.
1. 尺寸标注：尺寸标注必须准确、清晰、完整，包括基本尺寸、公差尺寸和定位尺寸等。
The tolerance size is used to control the machining accuracy of the part, which needs to be accurately calculated and marked according to the machining requirements of the part.
公差尺寸是用来控制零件加工精度的，需要根据零件的加工要求进行精确计算和标注。
2. Surface roughness labeling: Surface roughness is a parameter to measure the micro-unevenness of the surface of the parts, and the value and processing method of surface roughness need to be marked on the processing drawings.
2. 表面粗糙度标注：表面粗糙度是衡量零件表面微观不平整程度的参数，需要在加工图纸上标注出表面粗糙度的值和加工方法。
3. Shape and position tolerance marking: Shape and position tolerance is used to control the shape and position accuracy of the parts, and it is necessary to mark the shape and position tolerance values on the processing drawings, such as parallelism, perpendicularity, coaxial degree, etc.
3. 形位公差标注：形位公差是用来控制零件形状和位置精度的，需要在加工图纸上标注出各项形位公差值，如平行度、垂直度、同轴度等。
4. Material annotation: the processing drawings need to mark the materials used, heat treatment requirements and hardness and other parameters in order to prepare and process materials.
4. 材料标注：加工图纸上需要标注出使用的材料、热处理要求和硬度等参数，以便进行材料准备和加工。
5. Processing method annotation: Processing method annotation refers to the description of the parts processing process, including the use of cutting tools, cutting speed, feed speed and other parameters.
5. 加工方法标注：加工方法标注是指对零件加工过程的说明，包括采用的切削刀具、切削速度、进给速度等参数的标注。
6. Other annotations: According to different processing needs and parts characteristics, some other parameters may also need to be marked on the processing drawings, such as the annotation of some special requirements, the description of parts testing and inspection methods.
6. 其他标注：根据不同的加工需求和零件特点，加工图纸上可能还需要标注其他一些参数，如对某些特殊要求的标注、对零件试验和检验方法的说明等。
总之，精密零件加工图纸的标注要求是非常严格的，需要充分考虑零件的设计要求和质量标准，以确保加工出来的零件符合预期的要求。
In short, the annotation requirements of precision parts processing drawings are very strict, and the design requirements and quality standards of parts need to be fully considered to ensure that the machined parts meet the expected requirements.
