US 12,440,922 B2
Machine tool having cable guide apparatus
Ludwig Hiepp, Betzigau (DE); and Andreas Abt, Oy-Mittelberg (DE)
Assigned to DMG MORI Ultrasonic Lasertec GmbH, Stipshausen (DE)
Appl. No. 17/918,953
Filed by DMG MORI Ultrasonic Lasertec GmbH, Stipshausen (DE)
PCT Filed Apr. 22, 2021, PCT No. PCT/EP2021/060505
§ 371(c)(1), (2) Date Oct. 14, 2022,
PCT Pub. No. WO2021/219483, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. 10 2020 205 565.3 (DE), filed on Apr. 30, 2020.
Prior Publication US 2023/0234165 A1, Jul. 27, 2023
Int. Cl. B23K 26/14 (2014.01); B23K 26/08 (2014.01); B23K 26/342 (2014.01); B23Q 1/40 (2006.01); B65H 75/36 (2006.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01)
CPC B23K 26/147 (2013.01) [B23K 26/0884 (2013.01); B23K 26/342 (2015.10); B23Q 1/40 (2013.01); B65H 75/368 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B65H 2701/341 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A numerically controlled machine tool (10) having a cable guide apparatus (100) for providing and guiding a flexible connection cable (101) of a cable-connected tool (12), said machine tool (10) comprising at least:
a machining apparatus (11) configured to receive the cable-connected tool (12),
one or more numerically controlled machine axes configured to position the machining apparatus (11) and a workpiece to be machined relative to one another, and the cable guide apparatus (100) comprises:
a first guide apparatus (110),
a slide (111) movably guided in the first guide apparatus (110),
a first deflection roller (103) rotatably connected to the slide (111),
a first tension weight G1 (121),
a cable pull apparatus (130) connecting the first tension weight G1 (121) to the slide (111) guided in the first guide apparatus (110),
wherein the connection cable (101) runs over the first deflection roller (103) and connects the cable-connected tool (12) to a connection apparatus (102) of the machine tool (10),
wherein
the cable guide apparatus (100) further comprises:
a second tension weight G2 (122), and
a second guide apparatus (120) in which the tension weights G1 (121) and G2 (122) are each guided in a movable manner,
such that the connection cable (101) running over the first deflection roller (103) is pretensioned in a first displacement region of the cable-connected tool (12) by a force generated by the weight of the first tension weight G1 (121) and
is pretensioned in a second displacement region of the cable-connected tool (12) by a force generated by a sum of the weights of the tension weights G1 (121) and G2 (122).