US 12,115,620 B2
Polishing device
Werner Unnerstall, Melle (DE); Christian Wall, Hiddenhausen (DE); Christian Burstein, Werther (DE); Stephan Kampmeyer, Melle (DE); Diethard Sinram, Spenge (DE); and Peter Alfer, Melle (DE)
Assigned to Rud. Starcke GmbH & Co. KG, Melle (DE)
Appl. No. 17/273,531
Filed by RUD. STARCKE GMBH & CO. KG, Melle (DE)
PCT Filed Aug. 30, 2019, PCT No. PCT/EP2019/073162
§ 371(c)(1), (2) Date Mar. 4, 2021,
PCT Pub. No. WO2020/048874, PCT Pub. Date Mar. 12, 2020.
Claims priority of application No. 10 2018 121 626.2 (DE), filed on Sep. 5, 2018.
Prior Publication US 2021/0187698 A1, Jun. 24, 2021
Int. Cl. B24B 57/02 (2006.01); B24B 29/00 (2006.01); B24B 41/04 (2006.01)
CPC B24B 57/02 (2013.01) [B24B 29/00 (2013.01); B24B 41/04 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A polishing device held on a robot arm, the polishing device comprising: a support plate; a polishing disc held on the support plate; a drive that moves the support plate in a plane; and a metering device for supplying a polishing agent to a working side of the polishing disc, wherein the metering device includes an application nozzle that is routed through an open central shaft of the support plate, wherein the polishing disc has a central opening for passage of the polishing agent, and wherein the polishing agent is metered in a computer-controlled manner, wherein the open central shaft is a rotating shaft, wherein a supply line of the metering device is routed through a rotary feedthrough of the rotating shaft or through a freewheel, and wherein an injection pipe, in which the polishing agent and compressed air can be routed, is arranged between the supply line and a channel routed through the rotating shaft.