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Machine tool

A technology of machine tools and workbenches, applied in metal processing machinery parts, maintenance and safety accessories, automatic control devices, etc. the reducing effect of

Inactive Publication Date: 2016-04-27
MITSUBISHI HEAVY IND MACHINE TOOL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In this way, when the worktable is tilted due to the installation position of the workpiece, the movement of the worktable, the change of the surrounding temperature, etc., the accuracy of the relative position between the tool and the workpiece during the above-mentioned processing will be reduced, so the machining accuracy of the machine tool may be reduced. reduce

Method used

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Embodiment 1

[0034] refer to Figure 1 to Figure 6 The structure of the machine tool according to Embodiment 1 of the present invention will be described.

[0035] Such as figure 1 As shown, a machine tool 1 of a large horizontal boring machine is provided with a bed 11 fixed to the ground (foundation) 2, and a pair of left and right guide rails 12a extending in the horizontal X-axis direction are provided on the upper surface of the bed 11. , 12b. On the guide rails 12a and 12b, a column base 13 is slidably supported in the X-axis direction, and a column 14 is erected on the upper surface of the column base 13 . In addition, a column drive motor 131 is provided on the machine tool 1 (refer to Figure 6 ), by driving the column drive motor 131, the column base 13 and the column 14 are moved in the X-axis direction along the guide rails 12a, 12b through a feed screw mechanism not shown in the figure (refer to figure 1 ).

[0036] A pair of left and right guide rails 15a, 15b extending ...

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Abstract

A machine tool includes: a column movably supported on a bed; a saddle movably supported on the column; a ram movably supported on the saddle; moving means for moving the column, the saddle, and the ram respectively along movement axes; a table where a workpiece is placed; table-tilt detecting means for detecting atilt of the table; and controlling means for controlling the moving means based on a detection result from the table-tilt detecting means.

Description

technical field [0001] The present invention relates to a machine tool that improves the relative positional accuracy of a tool and a workpiece during machining and improves machining accuracy. Background technique [0002] In recent years, the demand for high-precision machining of machine tools has become higher and higher. The machining accuracy of the machine tool is largely determined by the geometrical accuracy of the machine body such as the smoothness and straightness of the movement of the saddle supporting the spindle, and is determined by the characteristics of the tool or processing conditions, and is also determined by the relative relationship between the tool and the workpiece during processing. The accuracy of the position is determined. [0003] For example, in a machine tool such as a horizontal boring machine, a saddle is movably supported on a side surface of a column. Therefore, when the saddle moves up and down along the column, deformation (inclinatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B39/08B23Q11/00
CPCB23Q11/0028B23Q15/12B23Q17/22B23B39/08B23Q11/00
Inventor 堂丸宏之仓本博久
Owner MITSUBISHI HEAVY IND MACHINE TOOL CO LTD