The significance of mechanical processing
In practical applications, any product must undergo various series of processing and inspection before it can be arranged for sale and use outside. According to the data, precision machining is a type of product that requires a high number of work cycles. After all, only mechanical equipment with excellent performance can produce higher quality products. With the development of modern industries, the structure and configuration of machinery have become a focus. Only by continuously improving technology can the future development of various industries have greater potential.
Precision machining refers to the process of changing the external dimensions or properties of a workpiece through a mechanical device. According to the difference in processing methods, it can be divided into cutting processing and pressure processing. Mechanical parts are composed of several surfaces. To study the relative relationship between the surfaces of the parts, a reference must be determined. The reference is the point, line, or surface used to determine the position of other points, lines, or surfaces on the part. According to their different functions, benchmarks can be divided into two categories: design benchmarks and process benchmarks.
The design benchmark for precision machining is the benchmark used on the part drawing to determine the position of other points, lines, and surfaces, which is called the design benchmark. The process benchmark of precision machining refers to the benchmark used in the machining and assembly process of parts, which is called the process benchmark. Process standards are divided into assembly standards, measurement standards, and positioning standards according to different purposes.
1、 Assembly reference: A reference used during assembly to determine the position of a part in a component or product, known as an assembly reference.
2、 Measurement benchmark: A benchmark used to verify the size and position of a processed surface, known as a measurement benchmark.
3、 Positioning reference: The reference used for positioning the workpiece during processing is called the positioning reference. The surface (or line, point) used as a positioning reference can only be selected as an unprocessed rough surface in the first process, and this positioning surface is called a rough reference In future processes, the processed surface can be used as a positioning reference, which is called a precision reference.