July 26, 2017 Craig Nyssen News Comments Off

The machine was developed on the order of one of lead designers and manufacturers of suspension and brake components for the global automotive industry. RIFTEK was tasked with developing and producing a precision Measurement Machine for contactless measurement of geometry parameters of leaf spring hole.

Measurement machine based on rotational triangulation sensor was proposed to be developed. The result is demonstrated in the video bellow by RIFTEK and by downloading the Leaf Spring Inner Diameter Measurement Machine manual.


Operation of the machine is based on the scanning of the item inner hole surface by rotating point triangulation laser sensor.

The machine includes a base on which installed a table with the V-block and fixing screw (for placing the measured spring), linear translation mechanism, controller. The linear translation mechanism carries the rotation module on which the laser sensor installed. On the back side of the machine there are two connectors for power and interface.

Figure 1. Front view Figure 2. Side view
Figure 3. View from above

The measured spring is placed on the table and fixed in the V-block by screw. At the command from the operator, a laser sensor begins rotation and moves into the control hole. During rotation a laser sensor measures the distance to the surface of the hole in synchronization with the angle of rotation. The depth of control and number of measured cross sections inside the hole is defined by the software. Radial coordinates of the hole surface are transmitted to the computer for calculating the required hole geometric parameters.

The main features of the Machine are:

Name of parameter Value
Measured diameter range, mm 30…75
ID measurement accuracy, um ±20
Depth of measurement, mm ≤116
Linear translation accuracy, um ±20
Quantity of measured sections not limited, programmable

Note: machine parameters can be changed for a specific task.

This machine is a continuation of our previous projects on ID measurement. We have significantly improved the software. Now we calculate not only average ID, but hole min and max ID, roundness, conicity and cylindricity. User can view 3D model of the hole (Point Cloud or Mesh), can select and view any cross-section shape and geometrical parameters. The program controls angle misalignment of sensor and hole axles and recalculate hole parameters to eliminate possible errors. Several special filters have been added. They decrease noise and increase accuracy of measurement.

To view the complete product page, click on the link or for a further discussion contact our Melbourne office by email or phone: +61 3 9874 5777