The fully automated HE-grinding machine & loader valve seat GDI is used for the flow calibration of fuel injection components. Based on a round table concept the workpieces pass through the individual processes. At the HE-grinding process an abrasive fluid is pumped under high pressure through the workpiece holes to round them. The flow increases, depending on the application, from 10% to 35%.The grinding process is stopped as soon as the correlated target flow has been reached.
- DMC station
The robot takes the component above the camera to read the
data matrix code of the component (serial number). - Loading round table
Transfer point from robot to round table an vice versa. - Pre-measuring station
Here, the flow quality of the preliminary process is checked
(within the specified flow tolerance). - Grinding station 1
Rounding process of the component (can be used for pre-
grinding but also for final grinding). - Washing station 1
Cleaning process after grinding. - Grinding station 2
Rounding process used as final grinding to the target flow. - Washing station 2
Cleaning process after grinding. - Measuring station 2
Verification of the flow quality after grinding (within the specified
flow tolerance) - Blow out station
Drying process (free part from oil residues)
Highlights
- Quick changeable workpiece carriers
- Individually activated process steps
- Linking of the result files with the workpiece DMC
- Modular design of the stations
- Place saving concept of the rotary table
- With a process capability of Cpk ≥ 1.67 the flow tolerances are reduced to ± 2% after the HE-process.
- Grinding with different media (2 separate grinding stations)
- Grinding and measuring with backpressure is possible.
- Cycle time reduction is possible by means of a second grinding station.
- Easy data handling access via a local database (target values, results, etc.).
- Illustrative visualization of running processes and outcomes
- Control panel with touchscreen display and convenient user interface
- 15x masterpiece tray
- Part input via bulk
Technical data
- Cycle time grinding process: depending on the degree of rounding
- Grinding pre-pressure: max. 110 bar
- Grinding back-pressure: max. 60 bar
- Washing pressure: max. 10 bar
- Measuring pre-pressure: max. 140 bar
- Measuring back-pressure: max. 60 bar
