The three geometric parameters of the actual surface size, shape and orientation after the centering machine are in line with the geometric parameters required by the drawing. The ideal geometric parameters are the average size in terms of scale, and circle, cylinder, Planes, tapered surfaces and straight lines, etc., are parallel, straight, coaxial, symmetrical, etc. for the mutual positions of the surfaces. The deviation between the actual parameters of the part and the geometric parameters is called a machining error, and the machining accuracy of the centering machine is based on Different measurement methods should be used for different machining accuracy content and accuracy requirements. Generally speaking, there are the following types:

  1. According to the direct measurement of the parameters to be measured, it is divided into direct measurement and indirect measurement

        1. Direct measurement, directly measure the measured parameters to obtain the measured scale, for example, use calipers and comparators to measure;

        2. Indirect measurement, measure the geometric parameters related to the measured scale, and obtain the measured scale through calculation;

        It is not difficult to see that direct measurement is more intuitive, and indirect measurement is more complicated. Generally, when the measured scale may not meet the requirements with direct measurement, indirect measurement has to be used;

        2. According to whether the surface to be measured is in contact with the measuring head of the measuring instrument, it can be divided into touch measurement and non-touch measurement;

        1. Touch measurement by center machining, the measuring head is in contact with the surface to be touched, and there is a measuring force with a mechanical effect, such as a micrometer or a vernier caliper;

        2. Non-touch measurement, the measuring head does not touch the surface of the part to be measured, and non-touch measurement can prevent the influence of the measurement force on the measurement results, such as using projector measurement, light wave interferometry measurement, etc.;

        3. The value indicated by the reading value of the measuring tool can be divided into measurement and relative measurement

        1. Measurement, the reading value directly indicates the size of the scale to be measured, such as measuring with a vernier caliper or a micrometer

        2. Relative measurement, the reading value only indicates the error of the measured scale relative to the standard scale. For example, using a comparator to measure the diameter of the shaft, it is necessary to use a gauge block to adjust the zero position of the instrument, and then measure, the measured value is the measured value. The diameter of , is related to the difference between the dimensions of the gauge block, which is the relative measurement. Generally speaking, the accuracy of the relative measurement will be higher, but the measurement will be more troublesome.

        The above is the measurement of the processing size of the centering machine analyzed for you. It also refers to the above three methods, direct measurement and indirect measurement, touch measurement and non-touch measurement, and measurement and relative measurement. I hope it will be helpful to everyone.

Changzhou Ziying Metal Products Co., Ltd. was established in 2009 and is located in Hutang Chengxi Industrial Park, Wujin District, Changzhou City, covering an area of over 3,000 square meters. It is a comprehensive machinery manufacturer covering the fields of machining and metal hand controller production. Companies adhering to the "integrity-based, service-oriented" business philosophy, adhere to provide our customers with high-quality products and services.

The company's main business: mechanical finishing, metal hand controls (electric push rods) welcome everyone to consult and negotiate.