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Gantry machine tool

A gantry type, machine tool technology, applied in the direction of grinding machine, grinding frame, grinding bed, etc., can solve the problems of decreased machining accuracy and insufficient rigidity

Active Publication Date: 2020-12-22
SUMITOMO HEAVY IND LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, when the headstock is supported by the cross rail, a load in the direction toward the headstock side tends to be generated on the cross rail, and the above-mentioned conventional gantry machine tool has insufficient rigidity against the load in this direction.
Therefore, there is a possibility that the left and right columns bend toward the headstock side with respect to the cross rail, resulting in a decrease in machining accuracy.

Method used

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Embodiment Construction

[0021] [Overview of Gantry Machine Tool]

[0022] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0023] figure 1 It is a perspective view showing the gantry machine tool 1 according to the embodiment of the present invention. In the figure, the X-axis direction and the Y-axis direction are directions perpendicular to each other in the horizontal direction, and the Z-axis direction is an up-down direction in a vertical direction perpendicular to the X-axis direction and the Y-axis direction. In the following description, one side in the X-axis direction is referred to as the front, the other side in the X-axis direction is referred to as the rear, one side in the Y-axis direction is referred to as the left side, and the other side in the Y-axis direction is referred to as the left side. One side is set to right.

[0024] The gantry machine tool 1 is a so-called grinding machine for grinding one surface of a wor...

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Abstract

The present invention provides a gantry-type machine tool whose object is to achieve weight reduction and improve machining accuracy. The gantry machine tool of the present invention has: a first column (10) and a second column (20); a cross rail (32), supported on the first column (10) and the second column (20); and a headstock (332) , supported on the cross rail (32), the first column (10) and the second column (20) are respectively provided with inclined pillars (15, 25). Weight reduction can be achieved by providing slanted struts (15, 25), and by making the inclination of slanted struts (15, 25) correspond to the headstock (332) arranged on the cross rail (32), each column ( 10, 20) Rigidity to effectively withstand the increased load on the headstock side. Therefore, it is possible to reduce weight and improve machining accuracy.

Description

[0001] This application claims priority based on Japanese Patent Application No. 2017-062240 filed on March 28, 2017. The entire contents of this Japanese application are incorporated herein by reference. technical field [0002] The invention relates to a gantry machine tool equipped with columns. Background technique [0003] The gantry machine tool has a cross rail supported by a pair of left and right columns at both ends, and a headstock supported on the cross rail. [0004] In this type of gantry machine tool, in order to make the left and right columns withstand the weight of the cross rail and the headstock, and to prevent the left and right columns from deflecting and affecting the machining accuracy of the headstock, it is necessary to increase the rigidity of the left and right columns. [0005] In the existing gantry-type machine tools, convex ribs are arranged obliquely in the hollow interior of the left and right columns, thereby improving the rigidity of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q1/01
CPCB23Q1/01B23Q1/012B24B27/0046B24B41/02
Inventor 原田真佐佐木靖彦片山基志
Owner SUMITOMO HEAVY IND LTD