Emag Maschinenfabrik Gmbh

Emag-maschinen Vertriebs - Und Service Gmbh

Norbert Hessbruggen

Heinz Steinbach

Hans J Dey

The machine tool bas a combined slide which is formed of partial slides and is movable in the X direction on two linear guides by means of guide carriages. The two partial slides are supported directly relative to one another by support guides and can be moved in the X direction relative to one another in order to carry out a correcting adjustment or a feed movement. Each partial slide supports a vertical spindle which is movable in the Z direction. A joint multiple turret is associated with the vertical spindles, this multiple turret being outfitted with tools associated with the two tool spindles. The vertical spindles and the partial slides have separate driving units which can be controlled by corresponding control devices in such a way that the vertical spindles and the partial slides are displaceable jointly and synchronously or asynchronously on the one hand and are displaceable relative to one another on the other hand in order to carry out a correcting adjustment or a feed movement. Due to the relative displacement of the partial slides in the X direction and the vertical spindles in the Z direction, tolerances and deviations due to wear of the cutting edges can be compensated for so that the workpieces to be machined simultaneously have the same adjustment with respect to the tool cutting edges The relative displacement also permits a separate, varying machining of the workpieces.

Machine tool with a plurality of spindles

A machining center composed of a plurality of assemblies, with each assembly including a machine base. Each machine base includes a compound slide as well as guides for guiding a movement of the compound slide. A motor driven main spindle is adapted to be attached to the compound slide and is movable along a plurality of axes, with facilities being provided for collecting swarf and coolant. A working area housing is attached to the machine structure with the housing including a container adapted to be mounted on the machine structure as a module to house control elements and power supply. Openings are provided for enabling a collection and removal of swarf with additional openings being provided for enabling an accommodation of a storage and transportation unit. A probe is incorporated in a machine control for enabling a checking of machined workpieces, and a sheet metal cover, fastened to the compound slide, includes a hole penetrated by the motor spindle with a spindle attachment. The motor spindle penetrates the sheet metal cover in a sealed fashion.

Machining centre constructed from assemblies

A lathe comprises at least one base unit which is constructed from two machine beds 4, 7. The machine beds are cast as a one-piece unit from reaction resin concrete and carry the bed guides 5, 8 for a spindle box 6 which is displaceable in the direction of the spindle axis 10 and a tool carrier slide 9 with a tool turret 3. The bed guides are at a right angle relative to one another. Each spindle box comprises a projection 15 which has the length of the displacement path of the spindle box 6 and penetrates through a dividing wall 16 at the front end of the displacement path which is arranged at a right angle to the spindle axis 10. The switching axis 11 of the tool turret 3 is arranged at an angle relative to the longitudinal direction of its bed guide 8. In the construction of a lathe with two spindles the machine beds 4 of the spindle boxes 6 are glued together over a large surface area and the machine beds 7 for the tool carrier slides 9 are arranged at a right angle relative to the latter in a mirror-inverted manner at the machine beds 4.

Machining apparatus with at least one base unit

A lathe whose hollow horizontal work spindle has a rear end portion extending from the headstock and carrying the chuck actuating mechanism. A discrete prime mover at the outside of the headstock transmits torque to the end portion of the work spindle through a separable transmission whose case is centered by a collar provided at the exterior of the headstock and surrounding the end portion of the work spindle. The transmission has an input element which receives torque from the prime mover, e.g., through a clutch or coupling, and a set of toothed members one of which is removably mounted on the end portion of the work spindle and another of which meshes with the one toothed member and is driven by the input element. The transmission can constitute a variable-ratio gear transmission, a constant-ratio gear transmission or a belt transmission wherein the second toothed member is an internally toothed belt.

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Eschenbach, Germany

Norbert Hessbruggen