Three-dimensional measuring instrument

Three-dimensional measuring instrument is a three-coordinate measuring machine.

Its working detection principle is:

The coordinate position of each measuring point on the measured object can be obtained by placing the measured object in the three-coordinate measuring space. According to the spatial coordinate values of these points, the geometric size, shape and position of the measured object can be calculated.

Composition of CMM;

1, host mechanical system (X, Y, Z axis or other);

2. Probe system;

3. Electrical control hardware system;

4. Data processing software system (measurement software);

Application of CMM in modern design and manufacturing process

Definition of reverse engineering:

Digital technology, geometric model reconstruction technology and product manufacturing technology related to transforming physical objects into CAD models. Generalized reverse engineering: including geometric reverse, process reverse, material reverse, management reverse and many other aspects of system engineering.

Forward engineering:

Product design->; Manufacturing->; Inspection (CMM)

Reverse engineering:

Early:

Art design->; Manual model (1: 1)- > three-axis copying milling machine

Today:

Workpiece (model)->; Three-dimensional measurement (CMM)->; Design and manufacture

Reverse engineering equipment:

1, measuring machine: acquiring 3D digital data (point cloud/feature) of products;

2. Surface/solid reverse software: processing the measured data to realize surface reconstruction or even solid reconstruction;

3.CAD/CAE/CAM software;

4. CNC machine tools;

Technical difficulties in reverse engineering;

1, and get the digital point cloud of the product (measurement scanning system);

2. Construct point cloud data into surfaces, boundaries and even entities (reverse engineering software);

3. Integration with CAD/CAE/CAM system; (general CAD/CAM/CAE software)

4. In order to complete the above work quickly and accurately, experienced professional engineers (personnel) are needed;