Basic Principles of Coordinate Measuring machines
اسلاید 1: Basic Principles of Coordinate Measuring machineswww.aaamir69930.blogfa.com
اسلاید 2: Coordinate Measuring Machines - Modelwww.aaamir69930.blogfa.com
اسلاید 3: Types of CMMFixed Table Cantilever Coordinate Measuring MachineMoving Bridge Coordinate Measuring Machinewww.aaamir69930.blogfa.com
اسلاید 4: Types of CMMFixed Bridge Coordinate Measuring MachineColumn Coordinate Measuring Machinewww.aaamir69930.blogfa.com
اسلاید 5: Types of CMMMoving Ram Horizontal Arm Coordinate Measuring MachineMoving Table Horizontal Arm Coordinate Measuring Machinewww.aaamir69930.blogfa.com
اسلاید 6: Types of CMMGantry Coordinate Measuring MachineL-shaped Bridge Coordinate Measuring Machinewww.aaamir69930.blogfa.com
اسلاید 7: Types of CMMFixed Table Horizontal Arm Coordinate Measuring MachineMoving Table Cantilever Arm Coordinate Measuring Machinewww.aaamir69930.blogfa.com
اسلاید 8: Probe SystemsSwitching probe systemContinuous measuring probe systemKinematic touch trigger probe www.aaamir69930.blogfa.com
اسلاید 9: Proximity Sensorsensing arrayxyAx = 0.5 y tan(A)www.aaamir69930.blogfa.com
اسلاید 10: Diffracto Non-contact Laser Probe SURFACEMeasuring RangeLaser Light SourceDigital Solid-state sensorLens30owww.aaamir69930.blogfa.com
اسلاید 11: Automatic Axis AlignmentXw, Yw, Zw – Work piece related coordinate systemXM, YM, ZM – Machine related coordinate systemwww.aaamir69930.blogfa.com
اسلاید 12: Measurement with a CMMStep 1: Calibration of the stylus or probe tip with respect to the probe head reference point using a calibrated ball.Step 2: Metrological determination of the work piece position in the measuring machine-related coordinated system.Step 3: Measurement of the surface points on the work piece in the measuring machine-related coordinate system.Step 4: Evaluation of the geometric parameters of the work pieceStep 5: Representation of the measurement results after coordinate transformation into the work piece related coordinate system.www.aaamir69930.blogfa.com
اسلاید 13: Basic Geometric elementsCircle: Requires 3 points for measurement: By measuring 4 (up to 50) or more points form deviation is determinedPlane: Planar measurements require 4 or more points for form. The intersection of Planes 2 and 3 generate Line 5; Point 6 is the intersection of Plane 4 and Line 5Cylinder: To define a cylinder, 5 points are necessary. Calculations provide its axis and diameter. The intersection of the Cylinder 7 and Plane 4 is Line 8.Cone: The cone (or taper) requires at least 6 points for definition. Calculations determine the cone’s included angle and its axis in space.Sphere: The location of a sphere is found by measuring 4 points is also calculated.www.aaamir69930.blogfa.com
اسلاید 14: Calculated Solution - Distancewww.aaamir69930.blogfa.com
اسلاید 15: Calculated Solution - Distancewww.aaamir69930.blogfa.com
اسلاید 16: Calculated Solutions - Anglewww.aaamir69930.blogfa.com
اسلاید 17: Calculated Solutions - Planewww.aaamir69930.blogfa.com
اسلاید 18: Calculated Solutions - Circlewww.aaamir69930.blogfa.com
اسلاید 19: Calculated Solutions - Cylinderwww.aaamir69930.blogfa.com
اسلاید 20: Calculated Solutions - Spherewww.aaamir69930.blogfa.com
اسلاید 21: Calculated Solutions - Conewww.aaamir69930.blogfa.com
اسلاید 22: Data flow between CAD/CAM system and CMMwww.aaamir69930.blogfa.com
اسلاید 23: Volume/Variety Options for Inspection Equipmentwww.aaamir69930.blogfa.com
اسلاید 24: Schematic Diagram of an FISwww.aaamir69930.blogfa.com
اسلاید 25: Distribution of points on a lobed circlewww.aaamir69930.blogfa.com
اسلاید 26: Example of insufficient samplingInsufficient sampling of a high-frequency component results in a low-frequency aliaswww.aaamir69930.blogfa.com
اسلاید 27: www.aaamir69930.blogfa.com
اسلاید 28: www.aaamir69930.blogfa.com
اسلاید 29: www.aaamir69930.blogfa.com
اسلاید 30: Minimum form error that could be detected by certain number of points on certain lobeswww.aaamir69930.blogfa.com
اسلاید 31: % Lobe Amplitude Detected100.0www.aaamir69930.blogfa.com
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