Before the three-coordinate measurement software introduces the CAD function, the preparation of the measurement program requires the professional to program the corresponding drawings. This programming method is more complicated to use and requires higher requirements for the operator.
Another method is to use the self-learning programming function of the coordinate measuring software to automatically generate the measurement program while actually measuring the workpiece. This program can be called for automatic measurement when the same workpiece is measured again. Because this method is simple and easy to use, it is widely used in the industry. However, since this kind of programming is inseparable from the actual workpiece, it brings many disadvantages that are difficult to overcome. First, because the programming is inseparable from the hardware environment, it is necessary to open the air supply to the measuring machine, so that the measuring machine can run normally before programming, which is more complicated. Second, programming is inseparable from the workpiece, so it is necessary to wait for the workpiece to be processed before programming, which will reduce the work efficiency and affect production.
After the CAD function is introduced in the coordinate machine measurement software, the above problem can be solved because the CAD model can be virtually measured in an offline state, thereby completing the self-learning programming process. No matter whether the production is carried out or not, the CAD drawing file designed by the design department can be programmed into the measurement software. The program measurement can be performed when the workpiece is processed, which greatly improves the production efficiency. The specific method is to first open the CAD model of the workpiece to be measured in the coordinate measuring software, and then open the self-learning function of the measuring program. After the coordinate system is established, the measurement of the workpiece can be started. The measurement program is automatically generated by the system.
After the programming is completed, you can also call the program in the CAD environment to perform analog measurement, verify the program, find out the error measurement path and mining point that occurred during the operation, and correct the program, which may appear in the actual measurement. The problem is minimized and the safety during the measurement process is guaranteed to the greatest extent.
3. Make location tolerance assessment more convenient
In the previous three-coordinate measuring software, in order to evaluate the positional tolerance of geometric elements, the theoretical position of the geometric elements must be manually input, and then compared with the actual measured values, so that the evaluation of the position tolerance is inconvenient.
When the coordinate measuring machine software introduces the CAD function, the CAD model can be measured in the software. Since the model is designed, the measured value is the theoretical value of the geometric element. After the theoretical value is obtained, the actual workpiece is measured in the corresponding coordinate system, and the actual value of the desired geometric element is obtained. This allows the positional tolerances of the measured geometric elements to be evaluated.
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