Lead screw fixing/semi-fixing support structure of precise digital control machine tool

The utility model relates to a lead screw fixing-semi-fixing support structure which is used for realizing lead screw pre-tensioning and preventing thermotropy; the structure comprises a first bearing group which is arranged on a bearing seat on a fixed end and a second bearing group which is arrang...

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Bibliographische Detailangaben
Hauptverfasser:	CHANG WENFEN, NIE YINGXIN, WANG CHUNGUANG, ZHU YINGPING, LIU BINGYE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING MACHINE TOOLS MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	The utility model relates to a lead screw fixing-semi-fixing support structure which is used for realizing lead screw pre-tensioning and preventing thermotropy; the structure comprises a first bearing group which is arranged on a bearing seat on a fixed end and a second bearing group which is arranged on the bearing seat on a semi-fixed end, and lead screws are arranged in the first bearing group and the second bearing group; the outer ring of the first bearing group is fixed in the bearing seat on the fixed end, and the inner ring of the first bearing group is fixed on the lead screw; and the outer ring of the second bearing group is semi-fixed in the bearing seat on the semi-fixed end, and the inner ring of the second bearing group is fixed on the lead screw.