Optimize processing technology
Choosing a reasonable processing technology is the key to reducing error accumulation. For example, the use of advanced CNC processing technology can accurately control the tool path and cutting parameters to improve processing accuracy. Reasonably arrange the allowance between rough processing and fine processing to avoid processing deformation and dimensional deviation caused by excessive or too small allowance. At the same time, according to the structural characteristics and material properties of the mold, choose the appropriate processing sequence, such as processing the reference surface first, and then use the reference surface as a reference to process other parts, which can effectively reduce the error accumulation caused by inconsistent references.
Improve equipment accuracy
Precision Mold processing requires high-precision processing equipment as support. Regularly maintain and inspect the machine tool for accuracy to ensure that the machine tool's geometric accuracy, positioning accuracy, and repeat positioning accuracy meet the requirements. When using high-precision tools and fixtures, tool wear will directly affect the processing accuracy. Therefore, worn tools should be replaced in time, and appropriate tool geometry parameters should be selected according to the processing materials and processes. The accuracy and rigidity of the fixture are also crucial. It can ensure the position accuracy of the workpiece during processing and reduce errors caused by improper clamping.
Strengthen quality inspection
In the process of processing, strengthening the quality inspection link is an important means to timely discover and correct errors. Establish a complete inspection process and conduct inspections after each key process, such as using precision measuring equipment such as a three-coordinate measuring machine to measure the size, shape and position accuracy of the mold. Once it is found that the error exceeds the allowable range, adjust the processing parameters or take compensation measures in time to avoid the error from being transmitted to the next process. At the same time, by analyzing the inspection data, summarize the laws and causes of the error generation, and provide a basis for improvement for subsequent processing.
Introduce error compensation technology
With the development of science and technology, error compensation technology is more and more widely used in Precision Mold processing. By establishing an error model, various error sources in the processing process are analyzed and predicted, and then these errors are compensated in real time during the processing process. For example, by using software compensation, the tool path or compensation value in the CNC machining program is adjusted according to the error data obtained by measurement, thereby improving the processing accuracy. In addition, thermal deformation compensation technology can also be used to compensate for the errors caused by thermal deformation during the processing process, further reducing error accumulation.
