(6) Fixation d'une pièce prismatique

Introduction

This tutorial guides you through the process of fixing a prismatic piece using manual Coordinate Measuring Machines (CMM). Understanding this technique is essential for achieving accurate measurements and ensuring high-quality manufacturing results.

Step 1: Prepare the Prismatic Piece

• Ensure that the prismatic piece is clean and free from any debris or grease. This helps prevent inaccuracies during measurements.
• Inspect the piece for any visible defects or irregularities that could affect the measurement process.
• Secure the piece in a stable position to avoid movement during measurement.

Step 2: Set Up the CMM

• Position the CMM in a location that allows for easy access to the prismatic piece.
• Turn on the CMM and ensure it is calibrated correctly. Calibration ensures the machine provides accurate readings.
• Load the appropriate measurement program for the type of prismatic piece you are working with. This program dictates the measurement points and paths for the CMM.

Step 3: Define Measurement Points

• Identify key features of the prismatic piece that need to be measured. This may include edges, surfaces, or holes.
• Using the CMM software, input the coordinates of these features. This allows the CMM to know exactly where to take measurements.
• Double-check the coordinates to ensure accuracy before proceeding.

Step 4: Execute the Measurement

• Begin the measurement process by starting the CMM program.
• Monitor the CMM as it moves to each designated measurement point. Ensure that it operates smoothly and accurately.
• Take note of any anomalies during the measurement process, such as unexpected movements or errors.

Step 5: Analyze the Data

• Once the measurement is complete, review the collected data on the CMM software.
• Compare the measured values against the specified tolerances for the prismatic piece.
• Identify any deviations that exceed acceptable limits, which may indicate manufacturing defects.

Step 6: Document the Results

• Save the measurement data for future reference. This can help in quality control and future production runs.
• Create a report summarizing the measurement process, findings, and any corrective actions taken.
• Share the report with relevant stakeholders to ensure transparency and continuous improvement.

Conclusion

Fixing a prismatic piece with a manual CMM involves careful preparation, precise measurements, and thorough analysis. By following these steps, you can enhance the accuracy of your measurements and improve the overall quality of your manufacturing process. Consider exploring more advanced CMM techniques or software to further streamline your operations.