TABLE DEVICE - DMG MORI CO LTD

Title:

TABLE DEVICE

Document Type and Number:

WIPO Patent Application WO/2022/034647

Kind Code:

A1

Abstract:

The present invention comprises: a table (2) on which a workpiece (Wa) is to be placed; a supporting mechanism (10) that has rotary shafts (15, 16) and that supports the table (2) so as to enable rocking about the axial center of the rotary shafts; a first drive motor (20) that rocks the table (2) by rotating the rotary shaft (15) of the supporting mechanism (10); a balance-imparting mechanism (30) that imparts, to the rotary shaft (15), a balance load that corresponds to the rocking position of the table (2); and a control device (50) that controls the first drive motor (20). The balance-imparting mechanism (30) is provided with: an eccentric plate (31) having a disk-like shape, the rotary shaft (15) being linked to the eccentric plate (31) at a position that is eccentric from a center position; a housing (32) that holds the outer peripheral section of the eccentric plate (31) via bearings (33); and a load-imparting unit (35) that imparts the balance load to the housing (32) in a direction intersecting the axis of the rotary shaft (15).

Inventors:

NISHIKI TAKAHIRO (JP)
IKAI KEISUKE (JP)

Application Number:

PCT/JP2020/030654

Publication Date:

February 17, 2022

Filing Date:

August 12, 2020

Export Citation:

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Assignee:

DMG MORI CO LTD (JP)

International Classes:

B23Q1/72; B23Q1/64

Domestic Patent References:

WO2015129576A1	2015-09-03
WO2009131082A1	2009-10-29

Foreign References:

JP2016221648A	2016-12-28
JP2016215308A	2016-12-22
JP2005028539A	2005-02-03
DE102017106569A1	2018-10-04
JP2016168641A	2016-09-23
JP2017030100A	2017-02-09
JP2017056508A	2017-03-23
JP2017056509A	2017-03-23

Other References: