Talk about the benchmarks for mechanical parts processing

In fact, any product must undergo various series of processing and inspection before it can be arranged for external sales and use. According to data, mechanical parts processing is one of the workpieces with the most processing processes in the finished product. Ultimately, mechanical equipment with excellent performance can produce higher quality products. In today's modern industry development, the structure and configuration of machinery have become the focus of people's attention. Only by continuously improving technology can the future development of various industries play a greater role.

Mechanical parts processing is a process of changing the size or performance of a workpiece through a mechanical device. Depending on the processing method, processing can be divided into cutting and pressurization. Machine parts are composed of several planes. When studying the relative relationship of planes, one must determine a benchmark. The benchmark is the points, lines, and surfaces that are used to determine the positions of other points, lines, and surfaces in the part. Depending on its different functions, the benchmark can be divided into design benchmarks and process benchmarks.

In mechanical parts processing , design benchmarks refer to the reference that uses part drawings to determine the positions of other points, lines and surfaces, which are called design benchmarks. Process reference for precision machining refers to reference for processing and assembly of parts, called processing reference. According to the different process standards of their use, they are divided into assembly reference, measurement reference and positioning reference.

Assembly reference: The reference used to determine the position of a part in a part or product during assembly is called the assembly reference.

Measurement reference: The reference used to check the size and position of the processed surface is called the measurement reference.

Positioning reference: The reference used to position the workpiece during processing is called the positioning reference. The surface (or lines, points) with the unprocessed surface (or lines, points) as the positioning reference, can only be selected in the first process, and this positioning surface is called a thick reference. It can be used in each subsequent process. The processed surface is used as the positioning reference, and this positioning surface is called the fine reference.