How to Ensure the Inspection Accuracy of Machine Parts?

The inspection of machine parts is an important part of the process of machine maintenance. The technical condition of the machinery and its parts and the technological measures to be taken are determined through the inspection. Through the inspection of the machine parts, we can directly know whether the design of the parts is reasonable and whether the accuracy meets the standard, and then reject the unqualified machine parts. The following is the method to ensure the inspection accuracy of machine parts.

Most machine parts and mating parts have prescribed technical standards. This is the main basis for inspection work. If there is no reliable basis for the need to modify the standards, these standards must be strictly followed, and the standards must not be lowered. The unqualified parts are put into use.

In addition to selecting the inspection equipment according to the nature and scope of the inspection items, special attention should be paid to the accuracy requirements. For example, when measuring the length, when the accuracy is required to be in the range of 1mm, a steel ruler can be used. When the accuracy is required to be in the range of 0.1mm, a vernier caliper is generally used. When the accuracy is required to be 0.01mm, a micrometer or dial indicator is required. When the accuracy is required to be 0.001mm, a comparator is required. 

If the accuracy of the inspection equipment is lower than the accuracy required by the measured object, it will not meet the quality inspection requirements at all, and more precise inspection equipment must be replaced.

The level of inspection operation technology directly affects the inspection accuracy. Whether it is self-inspection by maintenance personnel or inspection by full-time inspectors, operators are required to be proficient in the inspection equipment used and to clarify the inspection requirements of the inspection objects. Therefore, attention should be paid to the improvement of inspection technology, special training should be carried out for the use of special and important inspection equipment, and various inspectors should be relatively stable.

There are inevitably errors in any inspection results, and its impact is multifaceted. We can reduce inspection errors from the following aspects.

(1) The inspection equipment has its own accuracy grade, and it should be calibrated regularly, and attention should be paid to maintenance and storage to maintain its due accuracy.

(2) Correct the error caused by the temperature. Among the environmental factors that affect inspection accuracy, the temperature is the largest. For example, the influence of linear expansion in length inspection, the sexual change caused by temperature change in electronic devices, etc., must be corrected in more precise measurement.

(3) Most of the errors caused by improper operation or inaccurate readings are accidental errors, so the average value of multiple measurements can be taken, which can greatly reduce the degree of error.

The inspection of machine parts is the most critical step to test their geometric accuracy and machine properties, and we must pay enough attention. If you want to know more about machine parts after reading the above, you can get a more comprehensive solution by contacting us.

With excellent R&D technology and high-quality products and services, we have quickly become one of the leading parts manufacturers. We carry out strict quality inspections on all aspects of the products to ensure that the products meet the production standards and have good performance. At the same time, we also provide thoughtful one-stop service and develop effective solutions according to the diverse needs of customers. If you want to buy our machine parts, please contact us immediately!