How to ensure dimensional accuracy during CAM machining?

CAM machining is a key technology in the field of mechanical manufacturing. As the core part of the transmission system, the dimensional accuracy of the CAM has a crucial impact on the safety and stability of the whole transmission system. Therefore, it is particularly important to ensure the dimensional accuracy in CAM machining.

First, the preparation of CAM processing

Before the CAM machining, the preparation work needs to be carried out, including accurate design and the development of a reasonable machining program. Among them, the CAM design requires high precision, such as the use of computer-aided design software for three-dimensional modeling and analysis, and on this basis to develop a reasonable processing scheme, in order to maximize the size of the CAM accuracy.

Second, the processing technology of CAM processing

Numerical control machining

Nc machining has the advantages of high precision, high efficiency and low error, and is widely used in CAM machining. Nc machining can realize automatic machining of CAM contour by writing machining program, which can greatly improve machining precision and production efficiency.

grinding

Grinding machining is also one of the commonly used machining methods in CAM machining. The grinding process can achieve high surface quality while ensuring dimensional accuracy, which can greatly improve the wear resistance and service life of the CAM.

Electric discharge machining

Edm is a common non-contact machining method, which has the advantages of high machining precision, high surface quality, etc. It is suitable for CAM machining with complex shape and high hardness. The machining precision and speed can be adjusted by controlling the parameters such as pulse width and pulse number, so as to realize the high precision machining of CAM contour.

Third, detection technology in CAM processing

Measuring instrument

Measuring instrument is one of the essential tools in CAM machining, including micrometer, outside diameter runout instrument, projector and so on. These instruments can accurately detect the diameter, roundness, parallelism and verticality of the CAM, find the dimensional deviation in time, and ensure the machining quality.

Reference datum

Reference datum is also one of the important means to ensure the machining accuracy of CAM. By setting a reasonable reference benchmark, such as using key surfaces, central axes, etc., as a benchmark, the machining accuracy can be controlled and optimized.

Fourth, quality management in CAM processing

In the process of CAM machining, quality management is one of the important links to ensure dimensional accuracy. A comprehensive and strict quality control system should be adopted to ensure that the processing quality of each link meets the standard requirements. At the same time, quality problems should be found and analyzed in time, and the processing process should be adjusted and optimized to continuously improve production efficiency and processing quality.