About precision design of hydraulic cutting machine
Generally speaking, in addition to the positional relationship and structure of the components, it is important to determine the fit between the components. It is the size that determines the precision and performance of the machine. It is necessary to pay attention to the relationship between them.
When performing assembly drawing design, there are analogy, calculation and test methods for determining the limit tolerance and fit. The calculation method and the test method are methods for determining the coordination relationship by means of calculation or experiment. It has the characteristics of reliability, precision and science, but it takes a lot of cost and time, and the stone is too economical.
About the precision design and selection method of hydraulic cutting machine
The analogy method is a method based on the use of parts and components, with reference to the experience of the same type of machinery. The basic point is statistical investigation, investigating the cooperation and use of the same type or similar structural components of the same type, and then analyzing the analogy to determine its cooperation.
The analogy method is simple and easy, and the selected cooperation focuses on inheriting the actual experience of design and manufacturing in the past, and most of them have been verified by Ding, with high reliability and convenience. Product serialization, standardized production, and good processability. Due to the above advantages, the determination of the limit cooperation has been used as an effective method. Currently, this method is still the main method of mechanical design and manufacturing.
The hydraulic precision design of hydraulic cutting machines is an important part of machine design. Whether it is designing complex and sophisticated boring machines, rockets or simple machines such as reducers, it is necessary to consider the conceptual concept design, the knot, the art design and the precision design. When designing for precision, you need to consider how to achieve the functional requirements of the machine, and also consider whether it can be manufactured as required.
The task of precision setting is how to use the tolerances, geometric tolerances, surface roughness and other items. Express the allowable difference in manufacturing parts of the machine. To create machinery that meets various performance indicators