Patent ID: 6357094
Filing Date: 2002-03-19
Classification: B23Q,G05B,Y10T

Abstract:
In a machine tool provided with feeding system to linearly feed a slide to be fed, each feed gear comprising:first and second feed mechanisms which are provided in a parallel manner spaced apart from each other by a specified interval therebetween, respectively comprising: a linear feed-driving means, a feed-moving body which engages with the feed-driving means to move along the feed-driving means, and a position sensor to detect positions of the feed-moving body along the feed-driving means, first and second support mechanisms which are respectively connected to each feed-moving body of the first and the second feed mechanisms and rotatably support the slide, and a control means to control operations of the first and the second feed mechanisms respectively, a pair of columns which are disposed in a parallel manner being spaced away from each other by a specified interval therebetween, a cross beam which is horizontally linked with the columns, and a table that is provided under the cross beam and is allowed reciprocating in orthogonal direction of the cross beam, wherein at least either of support portions of the first and the second support mechanisms for rotatably supporting the slide is provided to be moved in such a direction to separate from the other so as to rotate the slide according to a difference in moving amount of the feed-moving bodies, wherein the first and the second feed mechanisms are disposed at a front face of the cross beam, the slide is provided with the tool hold mechanism to rotatably hold the tool, and the tool hold mechanism is movable across the feed-driving means.