US 11,850,693 B2
Machine tool and machining method
Michael Eble, Fridingen (DE); Karl-Heinz Raffke, Aldingen (DE); Swenja Koch-Weiler, Bodman-Ludwigshafen (DE); Heinrich Bissert, Orsingen-Nenzingen (DE); Claus Eppler, Messstetten (DE); and Robert Gref, Muehlheim (DE)
Assigned to CHIRON Group SE, Tuttlingen (DE)
Filed by CHIRON Group SE, Tuttlingen (DE)
Filed on Mar. 2, 2021, as Appl. No. 17/189,576.
Application 17/189,576 is a continuation of application No. PCT/EP2019/073258, filed on Aug. 30, 2019.
Claims priority of application No. 10 2018 121 970.9 (DE), filed on Sep. 10, 2018.
Prior Publication US 2021/0178539 A1, Jun. 17, 2021
Int. Cl. B23Q 3/157 (2006.01); B23Q 3/155 (2006.01)
CPC B23Q 3/15539 (2016.11) [B23Q 3/15536 (2016.11); B23Q 3/15706 (2013.01); B23Q 3/15713 (2013.01); B23Q 3/15724 (2016.11); Y10T 483/115 (2015.01); Y10T 483/175 (2015.01); Y10T 483/1855 (2015.01); Y10T 483/1891 (2015.01)] 19 Claims
OG exemplary drawing
 
1. A machine tool configured to machine metal workpieces, comprising:
a tool spindle,
a workpiece table,
at least one first tool magazine,
at least one second tool magazine, wherein the at least one first tool magazine is on an opposite side of the tool spindle from the at least one second tool magazine,
a first tool fitting site for the at least one first tool magazine,
a second tool fitting site for the at least one second tool magazine, wherein tools are exchanged at one of the first and second tool fitting sites in order to equip an inactive one of the first and second tool magazines completely or partially with new tools for machining, and
a first tool fitting site cover, which is able to be opened and closed, is provided at the first tool fitting site, wherein the first tool fitting site cover is closed at least when the first tool magazine is active,
a second tool fitting site cover, which is able to be opened and closed, is provided at the second tool fitting site, wherein the second tool fitting site cover is closed at least when the second tool magazine is active,
a first tool change site for the at least one first tool magazine, wherein at the first tool change site, a first plurality of tools can be supplied one at a time to the tool spindle,
a second tool change site for the at least one second tool magazine, wherein at the second tool change site, a second plurality of tools can be supplied one at a time to the tool spindle,
a first tool change site cover, which is able to be opened and closed, is provided at the first tool change site,
a second tool change site cover, which is able to be opened and closed, is provided at the second tool change site,
wherein the tool spindle and the workpiece table are movable relative to one another along a vertical axis and along two horizontal axes so as to machine a workpiece that is clamped on the workpiece table,
wherein the vertical axis and the two horizontal axes are orthogonal to one another,
wherein in the at least one first tool magazine, a tool set is provided that comprises the first plurality of tools for machining a first workpiece of the metal workpieces, wherein one of the plurality of first tools can be selectively clamped in the tool spindle,
wherein in the at least one second tool magazine, a tool set is provided that comprises a second plurality of tools for machining a second workpiece of the metal workpieces, wherein one of the plurality of second tools can be selectively clamped in the tool spindle, and
wherein only one tool magazine of the at least one first tool magazine and the at least one second tool magazine is active at a time, so that exclusively the tool set from the respective active tool magazine is used for machining the metal workpieces.