摘要:
A feeding module includes a slider 10 and a guider 30. The slider includes two sliding portions 110, a first connecting portion 20 and four sliding blocks 130 with hydrostatic bearing. Each sliding portion has a first through hole. The first connecting portion is connected to the sliding portions. Two of the sliding blocks are disposed in the first through hole in one of the sliding portions, another two of the sliding blocks are disposed in the first through hole in another one of the sliding portions. Each sliding blocks has a second through hole. The guider includes two cylindrical portions 310 corresponding to the two sliding portions. One of the cylindrical portions penetrates through the second through holes in two of the sliding blocks. Another one of the cylindrical portions penetrates through the second through holes in another two of the sliding blocks.
摘要:
Führungsanordnung, insbesondere einer Werkzeugmaschine (10), zum Führen einer linearen Bewegung eines sich gegenüber einem stationären Teil (1, 2) entlang der Bewegungsachse (x, z) und einer orthogonal zu dieser verlaufenden Querrichtung (y) erstreckenden beweglichen Teils, mit einem dem stationären Teil zugeordneten Abstützbereich (11, 13, 21, 23), an dem sich das bewegliche Teil gegen eine in einer Abstandsrichtung (-z, x) orthogonal zur Erstreckung des beweglichen Teils wirkende Haltekraft gleitend abstützt, und einer Wälzführung (12/22, 14/24, 2.2/32, 2.4/34) mit einem dem stationären Teil zugeordneten Wälzbereich in Form einer Wälzschiene (12, (A), 14,2.2, 2.4), wobei eine von dem beweglichen Teil ausgehende eine der Haltekraft entgegengerichtete Komponente aufweisende und an dem Wälzbereich angreifende Last innerhalb des stationären Teils eine Belastung entlang eines zu dem Abstützbereich führenden Belastungsweges bewirkt, wobei der Belastungsweg einen Wegabschnitt (B) mit einer der Lastkomponente in Abstandsrichtung entgegengerichteten Komponente aufweist, dadurch gekennzeichnet , dass die Führungseinrichtung unter einer über die Wälzführung vermittelten einstellbaren Vorspannung gehalten ist, wobei die Einstellbarkeit der Verspannung über die Materialstärke einer/mehrerer die Wälzführung mit dem beweglichen Teil verbindenden Montageplatte(n) (25, 35) geleistet wird, und sich ein zu der Wälzschiene (12) passender Wälzschuh (22.1, 22.2) über die/eine der Montageplatte(n) an dem beweglichen Teil montiert ist und sich an einem Gegenlager (27) einer vorgegebenen Nachgiebigkeit abstützt.
摘要:
The invention relates to a machine (10) with a frame structure (46). Arranged on the frame structure (46) is a head (32), wherein the frame structure (46) has an actuator (96) and an air bearing (74), in order to make the head (32) move. The machine also has a compressed air feed (48), which is connected to the air bearing (74) and provides a pressurized air flow (50) for the air bearing (74). Also provided is a restrictor (52), which defines the pressurized air flow (50). The machine has a first operating state, in which a high pressurized air flow (40') is defined and in which the actuator (96) can be actuated. A controlling and evaluating unit (40) is provided, designed for actuating the actuator (96). Also provided is a second operating state, in which a pressurized air flow that is lower than the high pressurized air flow (50') is defined. In the second operating state, the actuator (96) is secured to prevent actuation, the controlling and evaluating unit (40) also being designed to control the restrictor (52) and to secure the actuator (96) to prevent actuation in the second operating state.
摘要:
A part holder (10), particularly for parts having a large mass to be machined in machine tools such as vertical lathes and the like, which comprises - a worktable (11) for supporting a part (12) to be machined, - a footing (13) for supporting the worktable (11), - at least one axial bearing (14) which is adapted to support the worktable (11) on the footing (13), - at least one radial bearing (15), provided with hydrostatic radial sliders, which is adapted for the guided coupling of the worktable (11) with the footing (13) so as to allow rotation about a rotation axis (A) of the worktable (11) on the footing (13), the rotation axis (A) being formed by the axis of the radial bearing (15), - first sensing means (16), which are functionally connected to at least one chosen radial slider (17) of the radial bearing (15) and are adapted to detect at least one functional parameter, which indicates the operation of the chosen radial slider ( 17), - a central processing unit (18), which is functionally connected to the first sensing means (16) in order to receive from them estimates of the functional parameter. The central processing unit (18) comprises means (19) for estimating the eccentricity of the centre of gravity axis (B) of a part (12) arranged on the worktable (11) with respect to the rotation axis (A), the estimation means (19) being adapted to process the values of the functional parameter detected by the sensing means (16), so as to obtain the value of the eccentricity (E).