发明名称 |
Machine tool |
摘要 |
A machine tool 1 has a support body 11, moving bodies 12, 13, 14, 15 with an engagement member 12a having an engagement hole 12b, a guide mechanism 20 for guiding the movement of the moving bodies 12, 13, 14, 15, a guide rail 31 provided along the moving direction of the moving bodies 12, 13, 14, 15 on the support body 11, a moving member 32 having a moving member body 33 engaged with the guide rail 31 and an engagement shaft 34 provided on the moving member body 33 and engaged with the engagement hole 12b and a collar member 35 provided on the tip portion of the engagement shaft 34, and a compressing spring 38 in which the engagement shaft 34 is inserted and which energizes the engagement member 12a. The engagement member 12a is provided on the opposite side to the moving body 14. |
申请公布号 |
US8926241(B2) |
申请公布日期 |
2015.01.06 |
申请号 |
US201012971829 |
申请日期 |
2010.12.17 |
申请人 |
DMG Mori Seiki Co., Ltd. |
发明人 |
Sakai Shigetsugu;Ueda Toshio |
分类号 |
B23Q1/01;B23Q11/00 |
主分类号 |
B23Q1/01 |
代理机构 |
WPAT, P.C. |
代理人 |
WPAT, P.C. ;King Anthony;Yang Kay |
主权项 |
1. A machine tool comprising:
a support body; a moving body disposed on the support body to be movable in a horizontal direction; guide means having two support-body-side guide portions being provided on the support body so that their guide directions are along the moving direction of the moving body and two moving-body-side guide portions being provided on the moving body and engaged with the support-body-side guide portions, and guiding the movement of the moving body with the engagement relationship between the guide portions, the support-body-side guide portions being spaced in a direction perpendicular to the moving direction of the moving body, the moving-body-side guide portions being spaced in the direction perpendicular to the moving direction of the moving body; feed means for moving the moving body; and the moving body having a center of gravity such that, when the center of gravity is projected on a moving plane of the moving body, the position of the projected center of gravity on the moving plane is positioned in a region outside a region between the moving-body-side guide portions in the direction perpendicular to the moving direction of the moving body, the machine tool further comprising: a guide member provided on the support body so that its guide direction is parallel to the moving direction of the moving body; a moving member engaged with the guide member and to be guided thereby, the moving member having a moving-member-side engagement portion engaged with a moving-body-side engagement portion which is provided on the moving body, and moving together with the moving body due to the engagement relationship between the moving-body-side engagement portion and the moving-member-side engagement portion; and energizing means provided on the moving member for energizing the moving body in such a direction that an offset load which acts on the guide means due to the relationship between the positions where the moving-body-side guide portions are arranged and the position of the center of gravity of the moving body is offset, wherein: the moving body has an engagement member with an engagement hole as the moving-body-side engagement portion provided thereon, the engagement member being positioned in a region opposite a region including the position of the projected center of gravity with the moving-body-side guide portions therebetween within the region outside the region between the moving-body-side guide portions; the moving member is configured with a moving member body engaged with the guide member and to be guided thereby, an engagement shaft as the moving-member-side engagement portion provided on the moving member body in a standing position with the outer peripheral surface between the tip portion and the root portion thereof being in engagement with the engagement hole, and collar member provided on the tip portion of the engagement shaft; and the energizing means is configured with a compressing spring in which the engagement shaft is inserted and energizes the engagement member with its ends being respectively in contact with the engagement member and the collar member. |
地址 |
Nara JP |