How to correctly select measuring instruments Measuring instruments are devices, meters, gauges, and standard materials used for uniform measurements that can be used to directly or indirectly measure the measured value of a measured object, including measurement reference instruments and work measuring instruments. A wide variety of measuring instruments can be used to measure the same part of the same workpiece, for example, measuring length, and different types of measuring instruments can be used. Therefore, the question arises: Which measurement instrument is most scientific and reasonable? In order to achieve scientific and rational use of measuring instruments, measurement instruments must be properly selected.
The correct selection of measuring instruments will be a must for each mechanical engineering technician, especially the mechanical designer and craftsman. Because when designing a mechanical part, in order to ensure the function of the part, after confirming its shape, corresponding technical conditions and various function parameters must also be proposed; in order to be able to manufacture the part and guarantee its quality, during drawing, It must take into account how to process it in production and how to measure its various parameter values. Without considering these, it cannot be measured. The drawing is equal to "on paper" and it is even more impossible to produce it.
For craftsmen, after getting the parts drawing and putting it into production, we must carefully study the drawings, understand the design intent and the use of the parts, and draw up the processing technology according to the shape of the parts, technical requirements and various parameters drawn in the drawings. . When compiling the processing technology, in order to economically process the part and ensure its quality, it is necessary to arrange the process route, select processing equipment and measuring instruments for measuring various parameters, and write them into the process file, and then follow the process file with the drawings. Together with the production department to organize production. Of course, according to the pattern management method, after drawing the pattern and compiling the craft file, it shall be sent to relevant leaders and departments for review and signing before being valid.
For processing workers and quality inspectors, processing shall be carried out strictly in accordance with the product drawings, technical requirements, and the processing methods specified in the process documents, and the measurement instruments specified in the process documents shall be used for correct measurement, and processing and selective measurement shall not be carried out from the process requirements. appliance. Because the measuring instruments specified in the craft documents are selected by the craftsman according to the selection principle of the measuring instruments, the measurement using such measuring instruments is in accordance with the scientific and reasonable principles.
For some mechanical parts that are particularly simple and the quality requirements are not very high, the machining process may not be programmed. At this time, the processing worker can select the processing method and processing equipment for processing, and the quality inspector can choose the measuring instrument for inspection. However, the selected measuring instruments must meet scientific and reasonable principles.
The correct selection of measuring instruments will be a must for each mechanical engineering technician, especially the mechanical designer and craftsman. Because when designing a mechanical part, in order to ensure the function of the part, after confirming its shape, corresponding technical conditions and various function parameters must also be proposed; in order to be able to manufacture the part and guarantee its quality, during drawing, It must take into account how to process it in production and how to measure its various parameter values. Without considering these, it cannot be measured. The drawing is equal to "on paper" and it is even more impossible to produce it.
For craftsmen, after getting the parts drawing and putting it into production, we must carefully study the drawings, understand the design intent and the use of the parts, and draw up the processing technology according to the shape of the parts, technical requirements and various parameters drawn in the drawings. . When compiling the processing technology, in order to economically process the part and ensure its quality, it is necessary to arrange the process route, select processing equipment and measuring instruments for measuring various parameters, and write them into the process file, and then follow the process file with the drawings. Together with the production department to organize production. Of course, according to the pattern management method, after drawing the pattern and compiling the craft file, it shall be sent to relevant leaders and departments for review and signing before being valid.
For processing workers and quality inspectors, processing shall be carried out strictly in accordance with the product drawings, technical requirements, and the processing methods specified in the process documents, and the measurement instruments specified in the process documents shall be used for correct measurement, and processing and selective measurement shall not be carried out from the process requirements. appliance. Because the measuring instruments specified in the craft documents are selected by the craftsman according to the selection principle of the measuring instruments, the measurement using such measuring instruments is in accordance with the scientific and reasonable principles.
For some mechanical parts that are particularly simple and the quality requirements are not very high, the machining process may not be programmed. At this time, the processing worker can select the processing method and processing equipment for processing, and the quality inspector can choose the measuring instrument for inspection. However, the selected measuring instruments must meet scientific and reasonable principles.
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