MACHINE TOOL
To provide a machine tool that can reduce influences of thermal displacement to be able to stabilize positioning accuracy while employing a constitution in which a ball screw disposed along a rotation axis line direction in a main spindle is fixed at a side close to the main spindle.SOLUTION: A mach...
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| creator | TOYAMA HIROHARU KONNO YUKI |
| description | To provide a machine tool that can reduce influences of thermal displacement to be able to stabilize positioning accuracy while employing a constitution in which a ball screw disposed along a rotation axis line direction in a main spindle is fixed at a side close to the main spindle.SOLUTION: A machine tool 1 comprises: a radial thrust support part 54 that supports a first end 52a closer to a main spindle 40 of a Z-axis ball screw 52 rotatably and unmovably in an axis direction; a radial support part 55 that supports a second end 52b farther from the main spindle 40 of the Z-axis ball screw 52 rotatably and movably in the axis direction; a collar 57 with a flange and a gap sensor 58 as displacement detection parts, provided closer to the second end 52b of the z-axis ball screw 52 in a bed 10, which detect thermal displacement in the axis direction of the Z-axis ball screw 52. A control part 80 comprises a thermal displacement correction part 82 that corrects a position of a table 50 on the basis of the thermal displacement detected by the gap sensor 58.SELECTED DRAWING: Figure 1
【課題】主軸に回転軸線方向に沿うボールねじを主軸に近い側で固定する構成を採用しつつ熱変位の影響を低減して位置決め精度を安定化できる工作機械を提供する。【解決手段】工作機械１は、Ｚ軸ボールねじ５２の主軸４０に近い側である第１端５２ａを回転可能且つ軸方向移動不能に支持するラジアルスラスト支持部５４と、Ｚ軸ボールねじ５２の主軸４０から遠い側である第２端５２ｂを回転可能且つ軸方向移動可能に支持するラジアル支持部５５と、ベッド１０においてＺ軸ボールねじ５２の第２端５２ｂに近い側に設けられ、Ｚ軸ボールねじ５２の軸方向の熱変位を検知する変位検知部としての鍔付きカラー５７及びギャップセンサ５８を備え、制御装置８０は、ギャップセンサ５８により検知された熱変位に基づいて、テーブル５０の位置を補正する熱変位補正部８２を備える。【選択図】図１ |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JP2020196094A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JP2020196094A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JP2020196094A3</originalsourceid><addsrcrecordid>eNrjZODxdXT28PRzVQjx9_fhYWBNS8wpTuWF0twMSm6uIc4euqkF-fGpxQWJyal5qSXxXgFGBkYGhpZmBpYmjsZEKQIAvawcvA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>MACHINE TOOL</title><source>esp@cenet</source><creator>TOYAMA HIROHARU ; KONNO YUKI</creator><creatorcontrib>TOYAMA HIROHARU ; KONNO YUKI</creatorcontrib><description>To provide a machine tool that can reduce influences of thermal displacement to be able to stabilize positioning accuracy while employing a constitution in which a ball screw disposed along a rotation axis line direction in a main spindle is fixed at a side close to the main spindle.SOLUTION: A machine tool 1 comprises: a radial thrust support part 54 that supports a first end 52a closer to a main spindle 40 of a Z-axis ball screw 52 rotatably and unmovably in an axis direction; a radial support part 55 that supports a second end 52b farther from the main spindle 40 of the Z-axis ball screw 52 rotatably and movably in the axis direction; a collar 57 with a flange and a gap sensor 58 as displacement detection parts, provided closer to the second end 52b of the z-axis ball screw 52 in a bed 10, which detect thermal displacement in the axis direction of the Z-axis ball screw 52. A control part 80 comprises a thermal displacement correction part 82 that corrects a position of a table 50 on the basis of the thermal displacement detected by the gap sensor 58.SELECTED DRAWING: Figure 1
【課題】主軸に回転軸線方向に沿うボールねじを主軸に近い側で固定する構成を採用しつつ熱変位の影響を低減して位置決め精度を安定化できる工作機械を提供する。【解決手段】工作機械１は、Ｚ軸ボールねじ５２の主軸４０に近い側である第１端５２ａを回転可能且つ軸方向移動不能に支持するラジアルスラスト支持部５４と、Ｚ軸ボールねじ５２の主軸４０から遠い側である第２端５２ｂを回転可能且つ軸方向移動可能に支持するラジアル支持部５５と、ベッド１０においてＺ軸ボールねじ５２の第２端５２ｂに近い側に設けられ、Ｚ軸ボールねじ５２の軸方向の熱変位を検知する変位検知部としての鍔付きカラー５７及びギャップセンサ５８を備え、制御装置８０は、ギャップセンサ５８により検知された熱変位に基づいて、テーブル５０の位置を補正する熱変位補正部８２を備える。【選択図】図１</description><language>eng ; jpn</language><subject>COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT ; CONTROL OR REGULATING SYSTEMS IN GENERAL ; CONTROLLING ; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING ; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS ; MACHINE TOOLS ; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS ; PERFORMING OPERATIONS ; PHYSICS ; REGULATING ; TRANSPORTING</subject><creationdate>2020</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20201210&DB=EPODOC&CC=JP&NR=2020196094A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20201210&DB=EPODOC&CC=JP&NR=2020196094A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TOYAMA HIROHARU</creatorcontrib><creatorcontrib>KONNO YUKI</creatorcontrib><title>MACHINE TOOL</title><description>To provide a machine tool that can reduce influences of thermal displacement to be able to stabilize positioning accuracy while employing a constitution in which a ball screw disposed along a rotation axis line direction in a main spindle is fixed at a side close to the main spindle.SOLUTION: A machine tool 1 comprises: a radial thrust support part 54 that supports a first end 52a closer to a main spindle 40 of a Z-axis ball screw 52 rotatably and unmovably in an axis direction; a radial support part 55 that supports a second end 52b farther from the main spindle 40 of the Z-axis ball screw 52 rotatably and movably in the axis direction; a collar 57 with a flange and a gap sensor 58 as displacement detection parts, provided closer to the second end 52b of the z-axis ball screw 52 in a bed 10, which detect thermal displacement in the axis direction of the Z-axis ball screw 52. A control part 80 comprises a thermal displacement correction part 82 that corrects a position of a table 50 on the basis of the thermal displacement detected by the gap sensor 58.SELECTED DRAWING: Figure 1
【課題】主軸に回転軸線方向に沿うボールねじを主軸に近い側で固定する構成を採用しつつ熱変位の影響を低減して位置決め精度を安定化できる工作機械を提供する。【解決手段】工作機械１は、Ｚ軸ボールねじ５２の主軸４０に近い側である第１端５２ａを回転可能且つ軸方向移動不能に支持するラジアルスラスト支持部５４と、Ｚ軸ボールねじ５２の主軸４０から遠い側である第２端５２ｂを回転可能且つ軸方向移動可能に支持するラジアル支持部５５と、ベッド１０においてＺ軸ボールねじ５２の第２端５２ｂに近い側に設けられ、Ｚ軸ボールねじ５２の軸方向の熱変位を検知する変位検知部としての鍔付きカラー５７及びギャップセンサ５８を備え、制御装置８０は、ギャップセンサ５８により検知された熱変位に基づいて、テーブル５０の位置を補正する熱変位補正部８２を備える。【選択図】図１</description><subject>COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT</subject><subject>CONTROL OR REGULATING SYSTEMS IN GENERAL</subject><subject>CONTROLLING</subject><subject>DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING</subject><subject>FUNCTIONAL ELEMENTS OF SUCH SYSTEMS</subject><subject>MACHINE TOOLS</subject><subject>MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS</subject><subject>METAL-WORKING NOT OTHERWISE PROVIDED FOR</subject><subject>MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICS</subject><subject>REGULATING</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZODxdXT28PRzVQjx9_fhYWBNS8wpTuWF0twMSm6uIc4euqkF-fGpxQWJyal5qSXxXgFGBkYGhpZmBpYmjsZEKQIAvawcvA</recordid><startdate>20201210</startdate><enddate>20201210</enddate><creator>TOYAMA HIROHARU</creator><creator>KONNO YUKI</creator><scope>EVB</scope></search><sort><creationdate>20201210</creationdate><title>MACHINE TOOL</title><author>TOYAMA HIROHARU ; KONNO YUKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2020196094A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2020</creationdate><topic>COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT</topic><topic>CONTROL OR REGULATING SYSTEMS IN GENERAL</topic><topic>CONTROLLING</topic><topic>DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING</topic><topic>FUNCTIONAL ELEMENTS OF SUCH SYSTEMS</topic><topic>MACHINE TOOLS</topic><topic>MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS</topic><topic>METAL-WORKING NOT OTHERWISE PROVIDED FOR</topic><topic>MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICS</topic><topic>REGULATING</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>TOYAMA HIROHARU</creatorcontrib><creatorcontrib>KONNO YUKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TOYAMA HIROHARU</au><au>KONNO YUKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MACHINE TOOL</title><date>2020-12-10</date><risdate>2020</risdate><abstract>To provide a machine tool that can reduce influences of thermal displacement to be able to stabilize positioning accuracy while employing a constitution in which a ball screw disposed along a rotation axis line direction in a main spindle is fixed at a side close to the main spindle.SOLUTION: A machine tool 1 comprises: a radial thrust support part 54 that supports a first end 52a closer to a main spindle 40 of a Z-axis ball screw 52 rotatably and unmovably in an axis direction; a radial support part 55 that supports a second end 52b farther from the main spindle 40 of the Z-axis ball screw 52 rotatably and movably in the axis direction; a collar 57 with a flange and a gap sensor 58 as displacement detection parts, provided closer to the second end 52b of the z-axis ball screw 52 in a bed 10, which detect thermal displacement in the axis direction of the Z-axis ball screw 52. A control part 80 comprises a thermal displacement correction part 82 that corrects a position of a table 50 on the basis of the thermal displacement detected by the gap sensor 58.SELECTED DRAWING: Figure 1
【課題】主軸に回転軸線方向に沿うボールねじを主軸に近い側で固定する構成を採用しつつ熱変位の影響を低減して位置決め精度を安定化できる工作機械を提供する。【解決手段】工作機械１は、Ｚ軸ボールねじ５２の主軸４０に近い側である第１端５２ａを回転可能且つ軸方向移動不能に支持するラジアルスラスト支持部５４と、Ｚ軸ボールねじ５２の主軸４０から遠い側である第２端５２ｂを回転可能且つ軸方向移動可能に支持するラジアル支持部５５と、ベッド１０においてＺ軸ボールねじ５２の第２端５２ｂに近い側に設けられ、Ｚ軸ボールねじ５２の軸方向の熱変位を検知する変位検知部としての鍔付きカラー５７及びギャップセンサ５８を備え、制御装置８０は、ギャップセンサ５８により検知された熱変位に基づいて、テーブル５０の位置を補正する熱変位補正部８２を備える。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS MACHINE TOOLS MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PERFORMING OPERATIONS PHYSICS REGULATING TRANSPORTING |
| title | MACHINE TOOL |
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