5 Installation and commissioning
HSD S.p.A. © - h0104k01a.fm120718
101
5.5.5 Automatic tool-holder cone cleaning
The tool-holder cone and its conical housing in the spindle shaft are cleaned with the aid of a jet of
compressed air during the tool change phase.
This procedure protects the coupling surfaces from the deposit of impurities.
The condition of the coupling surfaces and their degree of cleanliness should be checked
periodically, as described in section
8 “Maintenance”.
The jet of cleaning air must be active as long as the collet remains open.
Automatic cleaning of the cone in versions with a rotary fluid distributor must respect the operating
sequence described below:
1. with the shaft stopped and before starting the tool change procedure, close the supply of
coolant fluid to the inside of the tool;
2. open the cone cleaning air jet;
3. wait until the residual fluid has been expelled through the tool;
4. without stopping the cone cleaning air jet, start the tool change procedure;
5. keep the cone cleaning air jet active until the tool change procedure has been completed;
6. before starting the shaft turning, close the cone cleaning air jet and, if the machining operation
requires it, open the supply of coolant fluid into the inside of the tool.
Consumption
Compressed air at 4 bar, 20°C (58 PSI, 68°F) Equivalent volume at 1 Atm, 20°C (68°F)
50÷70 litres/minute - 1.7÷2.5 cfm 200÷280 litres/minute - 7÷10 cfm
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