The quality of the products produced by Shenzhen Zhansheng automatic terminal machine is affected by the automatic terminal machine. The processing quality of its components and different processes may affect the quality of the products. It mainly includes machining accuracy and appearance quality.
Terminal machining accuracy refers to the degree to which the practical values of the specifications, shapes and orientations of the parts are close to the values of their interests. The closer the practice value is to the desired number, the lower the machining error, the higher the machining accuracy.
The machining accuracy of parts includes specification accuracy, external shape banyan degree and azimuth precision.
(1) shape accuracy. It refers to the degree that the shape of the part is near to the shape of the part. There are six types of public service: straightness, flatness, degree of return, column reading, line generalization and surface generalization.
(2) dish service. It refers to the degree of closeness between the practical wall and the aspiration of a part's appearance, axis or symmetrical plane. There are eight types of terminal machine azimuth public service: parallelism, straightness, inclination, azimuth, coaxiality, symmetry, mouth jump and full jump. Generally speaking, the precision of vegetable seed processing means the precision that can be reached under normal operating conditions, which is called economic precision. When planning the parts, the first step is to choose which level of accuracy to choose according to the importance of the parts specifications; secondly, the equipment conditions and the processing costs of the factory should be considered. In short, the principle of selection accuracy is to select a lower precision on the premise that the technical requirements can be met.
(3) specification accuracy. It refers to the degree that the practice norm of parts is close to the ideal norm. According to the national code GB/T 1800.1, the 2009 rule, the regulated service is divided into 20 grades, namely, IT01, ITO, and 171 YIT18. IT indicates standard public service, Arabic numerals indicate grade of public service, the greater the number, the greater the value of public service, the lower the specifications accuracy. 1 TOI - IT13 is used for collaborative specifications, the commonly used collaborative specifications are below IT5; IT14 - ITIS is used for non-collaborative industry specifications.
2. appearance quality
The surface quality of the part includes the surface roughness, the degree of hardening and the nature and size of the residual stress. The surface quality of the part has a great influence on the wear resistance, corrosion resistance, fatigue resistance and other functions of the part, as well as the service life of the part. Therefore, high speed and heavy load parts require higher surface quality. The drawings of general parts only indicate the requirements of surface roughness. Surface roughness is usually determined by the sum of the arithmetic mean deviation (R.). The higher the surface quality of parts, the smaller the roughness of the surface. However, the appearance of some parts, out of the appearance or clear consideration, require bright, and the tip is not necessarily high, such as the handle of machine tools, panels and so on.
As can be seen from the above, the production efficiency of trudging cutting is to try to reduce the time of wearing this process and other practices.