Ram deflection correction device and correction method

Abstract

Provided are a ram deflection correction device and a correction method which are capable of simultaneously correcting the displacement and the inclination of a ram tip. For this purpose, the ram deflection correction device, which corrects the deflection of a ram (15) of a machine tool supported by a saddle in such a way as to be movable in a horizontal direction (H), comprises a first tension bar (21) which is installed along the horizontal direction (H) and above the centerline (L) of the ram (15) and which provides a tensile force (F1) that pulls the tip of the ram (15) inward, and a second tension bar (22) which is installed along the horizontal direction (H) and above the centerline (L) of the ram (15) and which provides a tensile force (F2) that pulls inward at a position located inward of the tip of the first tension bar (21).

Description

technical field [0001] The present invention relates to a ram deflection correcting device and correcting method in horizontal machine tools and the like. Background technique [0002] Figure 7 The schematic structure of the existing horizontal machine tool is shown in . In the horizontal machine tool 50 , a bed 51 is provided with a column base 52 movable in the horizontal direction (for convenience, referred to as the front-rear direction), and a column 53 is erected on the column base 52 . One side of the column 53 is supported with a saddle 54 capable of moving in the vertical direction (for convenience, referred to as the up and down direction). .) Moving ram 55. The ram 55 has a main shaft, and the workpiece to be processed is processed by a tool attached to the front end of the main shaft. When processing, desired processing is performed while moving the column base 52 , the saddle 54 , and the ram 55 . At this time, the ram 55 is deflected D along with the movem...

AI Technical Summary

Problems solved by technology

The inclination of the front end of the ram differs depending on the load acting on the front end of the ram (the presence or absence of accessories, the type), so when the displacement of the front end of the ram is corrected first, the inclination of the front end of the ram becomes larger, and an inclination occurs on the main shaft, thereby There is a problem of height difference at the connection part of the processed surface

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