Cooling lubricant nozzle carrier for a grinding machine, grind-ing machine having such a cooling lubricant nozzle carrier, and method for operating a cooling lubricant nozzle carrier
The invention relates to a cooling lubricant nozzle carrier ( 100 ) for a grinding machine ( 1 ), the cooling lubricant nozzle carrier ( 100 ) having a central arm ( 150 ) and two side arms ( 130, 140 ) arranged on the central arm ( 150 ) such that they can move relative to the central arm ( 150 ), and the cooling lubricant nozzle carrier ( 100 ) having at least two cooling lubricant nozzles ( 110, 120 ), at least one of which is arranged on each of the side arms ( 130, 140 ), wherein the side arms ( 130, 140 ) are each movably mounted relative to the central arm ( 150 ) in such a way that the cooling lubricant nozzle ( 110, 120 ) arranged on a particular side arm ( 130, 140 ) moves together with the side arm ( 130, 140 ) on a circular path when the side arm ( 130, 140 ) in question moves; a grinding machine having such a cooling lubricant nozzle carrier; and a method for operating such a grinding machine.
1. A cooling lubricant nozzle carrier ( 100 ) for a grinding machine ( 1 ), the cooling lubricant nozzle carrier ( 100 ) having a central arm ( 150 ) and two side arms ( 130 , 140 ) arranged on the central arm ( 150 ) so as to be movable relative to the central arm ( 150 ), and the cooling lubricant nozzle carrier ( 100 ) having at least two cooling lubricant nozzles ( 110 , 120 ), at least one of which is arranged on one of the side arms ( 130 , 140 ),
characterized in that:
the side arms ( 130 , 140 ) are each movably mounted relative to the central arm ( 150 ) in such a way that the cooling lubricant nozzle ( 110 , 120 ) arranged on a particular side arm ( 130 , 140 ) moves together with said particular side arm ( 130 , 140 ) on a portion of a circular path when said particular side arm ( 130 , 140 ) moves; and
the side arms ( 130 , 140 ) are mutually offset relative to the central axis of the circular path on which one of the cooling lubricant nozzles ( 110 , 120 ) moves together with its respective side arm ( 130 , 140 ) when that side arm ( 130 , 140 ) moves.
2. The cooling lubricant nozzle carrier ( 100 ) according to claim 1 ,
characterized in that the side arms ( 130 , 140 ) are driven by a drive such that they can be moved individually.
3. The cooling lubricant nozzle carrier ( 100 ) according to claim 1 ,
characterized in that at least one cooling lubricant nozzle ( 110 , 120 ) is driven by a motor ( 155 , 156 ) such that it can be pivoted individually.
4. The cooling lubricant nozzle carrier ( 100 ) according to claim 3 ,
characterized in that said at least one cooling lubricant nozzle ( 110 , 120 ) driven by the motor ( 155 , 156 ) can be pivoted by virtue of external teeth ( 113 , 123 ) being arranged on a holding portion ( 112 , 122 ) of the cooling lubricant nozzle ( 110 , 120 ) and interacting with a toothed rack portion or a toothed wheel segment ( 132 , 142 ) having internal teeth ( 132 b , 142 b ) and being moved by the motor ( 155 , 156 ).
5. The cooling lubricant nozzle carrier ( 100 ) according to claim 1 ,
characterized in that said at least two cooling lubricant nozzles ( 130 , 140 ) are replaceable.
6. The cooling lubricant nozzle carrier ( 100 ) according to claim 5 ,
characterized in that the cooling lubricant nozzles ( 110 , 120 ) are secured to the side arms ( 130 , 140 ) by means of a bayonet closure.
7. The cooling lubricant nozzle carrier ( 100 ) according to claim 1 ,
characterized in that a further cooling lubricant nozzle ( 160 ) is arranged on the central arm ( 150 ).
8. The cooling lubricant nozzle carrier ( 100 ) according to claim 7 ,
characterized in that the further cooling lubricant nozzle ( 160 ) has a replaceable nozzle plate ( 161 ).
9. The cooling lubricant nozzle carrier ( 100 ) according to claim 1 ,
characterized in that the side arms ( 130 , 140 ) are in the shape of an annulus sector.
10. A grinding machine ( 1 ) having a controller, a workpiece holder ( 4 ) for holding a workpiece ( 3 ) to be machined, and a grinding wheel ( 6 ) arranged on a driven shaft ( 7 ),
characterized in that the grinding machine ( 1 ) also has a cooling lubricant nozzle carrier ( 100 ) according to claim 1 .
11. The grinding machine ( 1 ) according to claim 10 ,
characterized in that the controller is designed and set up to operate the two cooling lubricant nozzles ( 110 , 120 ) arranged on different side arms ( 130 , 140 ) either as a cooling nozzle or as an extinguishing nozzle.
12. The grinding machine ( 1 ) according to claim 10 ,
characterized in that the controller is designed and set up to change a position of the cooling lubricant nozzles ( 110 , 120 ) during operation.
13. The grinding machine ( 1 ) according to claim 10 ,
characterized in that the central arm ( 150 ) is formed by a component of the grinding machine ( 1 ).
14. The grinding machine ( 1 ) according to claim 10 ,
characterized in that the central arm ( 150 ) is formed by a console of a spindle of the grinding machine ( 1 ).
15. A method for operating a grinding machine ( 1 ) according to claim 10 , in which one cooling lubricant nozzle ( 110 , 120 ) is used as a cooling nozzle and one cooling lubricant nozzle ( 120 , 110 ) is used as an extinguishing nozzle,
characterized in that during the grinding at least one of the cooling lubricant nozzles ( 110 , 120 ) is moved at least on a portion of a circular path.
16. The method according to claim 15 ,
characterized in that a direction of rotation of the grinding wheel ( 6 ) is changed at least once during the grinding and a cooling or lubricant role of the cooling lubricant nozzles ( 110 , 120 ) is switched in the process.
17. The method according to claim 15 ,
characterized in that, at least once during the grinding, one of the cooling lubricant nozzles ( 110 , 120 ) is rotated relative to the side arm ( 130 , 140 ) to which it is fastened.