A machine tool for machining workpieces, wherein the machine tool has a first spindle assembly and at least one second spindle assembly each having at least two working spindles which are arranged in a common spindle housing and on which in each case a machining tool for workpiece machining is arrangeable, wherein the machine tool has a workpiece holding device for holding workpieces for the purpose of workpiece machining by way of the machining tools, wherein the machine tool has a guide arrangement for the relative positioning of the workpiece holding device holding the workpieces and the first and the at least one second spindle assembly for workpiece machining.

A machine tool for machining workpieces, wherein the machine tool has a first spindle assembly and at least one second spindle assembly each having at least two working spindles which are arranged in a common spindle housing and on which in each case a machining tool for workpiece machining is arrangeable, wherein the machine tool has a workpiece holding device for holding workpieces for the purpose of workpiece machining by way of the machining tools, wherein the machine tool has a guide arrangement for the relative positioning of the workpiece holding device holding the workpieces and the first and the at least one second spindle assembly for workpiece machining.

An axially elongate dental machining portion includes a machining region machinable by a dental machining device, and a fixing region for fixing the axially elongate dental machining portion to a holder of the dental machining device. In the fixing region is a fixing projection oriented transversely relative to a longitudinal axis. In a condition of the machining portion being mounted in the holder, the fixing projection bears against a holding nose positioned in complementary relationship on the holder. The machining region has a machinable surface which has a maximum spacing relative to the longitudinal axis, measured normal to the longitudinal axis, and the fixing projection has a maximum spacing relative to the longitudinal axis, measured normal relative to the longitudinal axis, that is greater than the maximum spacing of the machinable surface relative to the longitudinal axis.

A machine tool includes: a plurality of machining units, each including: a first saddle movable in a right-left direction; a second saddle supported by the first saddle and movable in an up-down direction; and a spindle device supported by the second saddle and movable in a front-rear direction. The plurality of machining units are arranged in the right-left direction such that spindles provided in the respective spindle devices are parallel to each other. The machining tool further includes an X-axis moving mechanism that moves the first saddle in the right-left direction; and a control device that controls an operation of the X-axis moving mechanism during machining of a workpiece and during correction of a spindle spacing between the machining units. A plurality of the X-axis moving mechanisms are provided corresponding to the respective machining units.

A machine tool for machining workpieces, wherein the machine tool has at least one first spindle assembly with at least one working spindle on which a machining tool for workpiece machining is arrangeable, wherein the machine tool has a workpiece holding device for holding workpieces for the purpose of workpiece machining by way of the machining tool, wherein the machine tool has a guide arrangement for the relative positioning of the workpiece holding device holding the workpieces and the first spindle assembly for workpiece machining, wherein the guide arrangement comprises a workpiece-holder guide for guiding the workpiece holding device so as to position a workpiece holder holding the workpieces relative to the first spindle assembly.

A machine tool for machining workpieces, wherein the machine tool has at least one first spindle assembly with at least one working spindle on which a machining tool for workpiece machining is arrangeable, wherein the machine tool has a workpiece holding device for holding workpieces for the purpose of workpiece machining by way of the machining tool, wherein the machine tool has a guide arrangement for the relative positioning of the workpiece holding device holding the workpieces and the first spindle assembly for workpiece machining, wherein the guide arrangement comprises a workpiece-holder guide for guiding the workpiece holding device so as to position a workpiece holder holding the workpieces relative to the first spindle assembly.

The invention relates to a method comprising the steps of: Abrasion, preferably but non-limited by means of sandblasting which produces mechanical roughing on the surface of the glass substrate, optionally applying a primer on the roughed surface, and applying an ink on this primer by means of screen printing which may be digital inkjet screen printing, drying the injected ink deposited by means of digital screen printing, and performing a tempering process. A glass substrate with an embossed surface finish is achieved which simulates the aesthetic and surface texture of different construction materials, such as stone, wood, granite, marble or porcelain, among others.

The machine tool includes a workpiece carrier assembly arranged for horizontal movement in parallel to a horizontal axis and a tool carrier configured for carrying at least one tool for machining at least one workpiece by rotating the tool. The workpiece carrier assembly or the tool carrier is displaceable between an operative position in which a workpiece carrier is facing the tool carrier, and at least one inoperative position. The workpiece carrier is arranged to be rotatable to allow for a modification of the angular position of the workpiece in relation to the tool carrier.

A milling machine including a frame (2) having a work surface (2.1) disposed in a vertical plane and a C-shaped moving bridge (3). In addition, the machine includes: at least three heads (7), each head including a machining spindle (15); and five movement axes (X, Y, Z, A, B), such that the moving bridge (3) is moved by the frame (2) along a horizontal axis (X). Each head (7) is moved independently on the moving bridge (3) along a vertical axis (Y) in order to be moved towards or away from the work surface (2.1) along a depth axis (Z) perpendicular to both the horizontal axis (X) and the vertical axis (Y), as well as rotating independently about a first axis of rotation (A). Each spindle (15) rotates independently about a second axis of rotation (B).

A milling machine including a frame (2) having a work surface (2.1) disposed in a vertical plane and a C-shaped moving bridge (3). In addition, the machine includes: at least three heads (7), each head including a machining spindle (15); and five movement axes (X, Y, Z, A, B), such that the moving bridge (3) is moved by the frame (2) along a horizontal axis (X). Each head (7) is moved independently on the moving bridge (3) along a vertical axis (Y) in order to be moved towards or away from the work surface (2.1) along a depth axis (Z) perpendicular to both the horizontal axis (X) and the vertical axis (Y), as well as rotating independently about a first axis of rotation (A). Each spindle (15) rotates independently about a second axis of rotation (B).