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Contact Person 
Michael Schinke
Tel: +49 (0)711 34801-65
mschinke@bilz.de

BPMS- Pneumatic Measurement System of Balance for Process Measurement

Bilz measuring device provides process control for honing tools with integrated air pressure measurement
BPMS measurement system
  • The measured air is transmitted through the spindle interface by a self-sealing torque arm

  • Bilz measuring computer for process measurement

BPMS Screnshot software

SYSTEM STRUCTURE FOR PROCESS MEASUREMENT
A fine machining process like honing is usually one of the last processing steps in the fabrication of forms, which includes certain tribology and dimensional precision properties. A precise control of the process is necessary. The measurement system from Bilz enables the integration of the honing process in machining centres. Honing tools with pneumatic measurement nozzles are required.
The recorded measured value, usually the diameter, is the criteria that is permanently compared to the requested size. When the measurement value is achieved, the interface communicates the value to the NC-Control which then stops the honing process. Because of this, there is no operator needed to monitor the actual hole size. The communication is made in 4 bit resolution over the PLC and up to 16 commands can be exchanged.

The system is flexible. The actual bore size can be represented via the floating bar or single values can be taken and set in relation to each other. The operating commands are handled manually through a touch screen or can be automatically integrated into the CNC system.

BPMS system with air pressure interface
System structure - AIR TRANSMISSION

The measured air is transmitted from the spindle to the tool through a self sealing torque support and the corresponding shaft on the tool side. With proper adjustment, the air can be transmitted to the automatically exchanged tools without any leakage during several tool changes. Without machining, the tool can be used as a measurement gauge with 3D presentation of the cylinder.


Assembly group torque support and air pressure distributor, self-sealing

The system is flexible. The actual bore size can be represented via the floating bar or single values can be taken and set in relation to each other. The operating commands are handled manually through a touch screen or can be automatically integrated into the CNC system.

For calibration, the usage of calibration rings is recommended; the calibration of multiple tools is possible. Limited automated cylindricity correction can also be possible.

Example of a realized system