| 摘要 |
The aim of the invention is to develop a spindle sleeve for a machine-tool, whose thermal expansion can be measured with a reduced technical complexity and a high degree of reliability and precision for compensation purposes. To achieve this: a component ( 2 ) is placed coaxially in the spindle sleeve ( 1 ), said component being connected to the spindle sleeve ( 1 ) in a fixed manner in the vicinity of the force-fit between the tool and the spindle sleeve ( 1 ), extending as far as the end of the spindle sleeve ( 1 ) in the bearing carriage ( 4 ) and being axially supported in said bearing carriage ( 4 ); the spindle sleeve ( 1 ) has a thermal expansion coefficient that differs from that of the component ( 2 ); and during temperature fluctuations the alterations in length of the spindle sleeve ( 1 ) in relation to the component ( 2 ) are detected in the form of output signals by means of a sensor ( 7 ) as a result of the different magnitudes of the two thermal expansion coefficients and are converted into compensation values for the position-controlled displacement of the spindle sleeve by means of the bearing carriage ( 4 ), using an electronic evaluation system and a tool-control mechanism. |
