The HMS system is a device designed for measuring and checking continuous and indexed bi-rotary heads and roto-tilting tables. Equipped with 3 sensors connected to the CNC, the HMS system is managed by a specific measurement software. By processing incoming data in real time, the software is able to check and correct geometric error, positioning accuracy and the RTCP parameters for the heads and tables. HMS is a high-precision instrument and provides an alternative to the traditional checking method using dial gauges. It has many advantages:

• a drastic reduction in checking time (half an hour rather than an entire day)
• measurement of all head and/or table positions (not just orthogonal positions)
• measurement of RTCP parameters
• automatic insertion of correction values in the CNC.

Easy to install and use, HMS can also be used by operators with no particular expertise. This means head geometry checks can be performed whenever necessary, avoiding lengthy and costly service interventions and reducing machine tool downtime. The HMS device is available in two different versions, standard and compact, to adapt to machine tool axis working travel for executing the cycles.

The simple and intuitive user interface guides the operator through the execution of the measurement cycles and makes HMS extremely easy to use. No specific knowledge is required and the cycles can be executed directly by the machine tool operator. The HMS device is easily fitted onto the machine tool using its magnetic base and no alignment is required. The instrument is supplied with a set of two high-precision reference bars to be used for the measurement cycles. The equipment and the application have been granted a European patent No. 1549459.

Head and roto-tilting table:

• actual check with HMS™