A machine tool includes a table, a first guide portion and a second guide portion that guide the table in the Z-axis direction and are arranged apart from each other in an X-axis direction, and a bed that includes a first guide mounting portion and a second guide mounting portion on which the first guide portion and the second guide portion are mounted respectively, and is provided with an opening portion which is located between the first guide mounting portion and the second guide mounting portion and penetrates in a Y-axis direction. The first guide mounting portion and the second guide mounting portion are respectively provided with a first facing surface and a second facing surface which face each other across the opening portion. The bed further includes a rib portion which is located in the opening portion and connected to the first facing surface and the second facing surface.

A workpiece machining system including a setting-up module and a machining module for producing workpieces. The setting-up module includes at least one first tool-holder attachment device for removably attaching at least one tool-holder and at least one first workpiece-carrier attachment device for removably attaching a workpiece-carrier. The machining module includes at least one second tool-holder attachment device for removably attaching at least one tool-holder and at least one second workpiece-carrier attachment devicefor removably attaching a workpiece-carrier, such that the tool-holder and the workpiece-carriercan both be transferred after setting up from the setting-up module to the machining module.

A C-type CNC machine center generally includes a chassis, a displaceable table, a work table, a working spindle, a coupling seat, and a driver device. The chassis has a working area, a power area, and a displacement channel communicating with the working area and the power area. The displaceable table is slidably mounted to the chassis and located in the working area. The coupling seat is slidably coupled to the base seat in the power area and includes an elongate hollow body and is fixedly mounted, with an end thereof, to the displaceable table. The driver device includes a motor mounted to the base seat in the power area and a ball screw coupled to the motor and the coupling seat to drive the coupling seat and the displaceable table to synchronously conduct reciprocal movement in a given direction. The coupling seat separates the ball screw from the working area.

To provide a portal-shaped tear processing device which is capable of stably performing high precision tear processing.

Provided is a portal-shaped tear processing device including: a portal-shaped frame; a rail member; a controlled movement robot; and a tear processing means, in which the column member and the beam member have an outer shell portion, a filling member enclosed in the outer shell portion, and a hollow portion boring the filling portion along a major axis direction of the column member and the beam member.

A machine tool includes: two Y-axis sliders arranged parallel to each other on the bed for allowing the saddle to move in the first direction; two X-axis sliders arranged parallel to each other on the saddle to move the table; and a controller. The controller, before controlling a first motor to move the saddle, controls a second motor to move the table so that the centroid position of a moving object assembly including the table and a loaded object placed on the table is positioned in a predetermined range including the center position between the two Y-axis sliders.

In a machine tool, in particular a laser machine tool, a workpiece slide or tool slide is movable along a guide rail and has at least two guide carriages that are guided on the guide rail. The machine tool has a covering hood that is moved along with the slide, for covering that rail section of the guide rail that is located between the two guide carriages. The covering hood is a part that is not connected to the slide. The covering hood is guided on the guide rail in a displaceable manner between the two guide carriages and is entrained in the displacement direction by the rear guide carriage when the slide is displaced.

A cooling system of machine tool body casting includes a body casting, a cooling device, and a fan. The body casting is provided with an inner space, an inlet end, and an outlet end. The inlet end and the outlet end are connected with the inner space. The cooling device is disposed at the inlet end. The fan is disposed on one side of the cooling device for inputting external air, such that the external air is input into the inner space and discharged from the outlet end. Therefore, the fan triggers the cold air to flow in the inner space for cooling down the heat of the body casting.

The present invention relates to embodiments of a machine tool, in particular a multi-spindle milling machine, comprise a machine frame, a workpiece clamping device for clamping a workpiece, an axis slide assembly arranged on the machine frame, and a spindle carrier assembly which is arranged on the machine frame and has at least two tool-carrying work spindles. The axis slide assembly is configured to linearly move the workpiece clamped at the workpiece clamping device by way of three controllable linear axes X, Y and Z. The work spindles are arranged at a turret which can be rotated or swiveled about a turret axis at respectively equal distance from the turret axis, and the spindle axes of the work spindles are aligned or can be aligned in parallel to one another and in parallel to the turret axis.

A machine tool has at least 5 axes. A tool holder assembly permits a tool holder spindle to be displaced relative to the frame along a first axis of translation and along a second axis of translation perpendicular to the first axis of translation and implementing slides in a plane forming an angle of between +40 and +50 relative to the first axis of translation. A part holder assembly permits a part to be displaced along a third axis of translation perpendicular to the other axes of translation, about a first axis of rotation parallel to the third axis of translation and about a second axis of rotation perpendicular to the first axis of rotation. The length of the precision path connecting the part to the tool via the frame and the assemblies of the machine is less than 1600 mm.

A sliding table device includes a base unit, a sliding unit and a cover plate. The sliding unit includes two rails, two sliding blocks disposed respectively and slidably on the rails and each having an oil inlet, and a sliding seat mounted co-movably on the sliding blocks. The sliding seat includes a main portion having a flow passage and an insertion hole that interconnects the flow passage and external environment, two fixed portions mounted respectively to the sliding blocks and each having a connecting passage that communicates with the flow passage, and two guiding portions formed respectively on the fixed portions and each having a guiding passage that communicates with the corresponding connecting passage and the corresponding oil inlet. The cover plate covers a portion of the main portion, and the insertion hole is not covered by the cover plate.