Metal working – Plural diverse manufacturing apparatus including means for... – Type of machine
Patent
1985-10-15
1987-01-20
Bilinsky, Z. R.
Metal working
Plural diverse manufacturing apparatus including means for...
Type of machine
29560, 409168, 409202, 409235, B23C 100, B23P 2302, B23Q 116
Patent
active
046371079
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a machine tool for machining and encompasses in particular the field of milling machines having vertical spindles or horizontal spindles, boring machines and vertical and horizontal lathes.
Machines capable of carrying out machining operations of different types are at the present time only machine tools of a particular type to which additional elements are added. These machines are complex and have very limited fields of application. Consequently it is always necessary to provide a plurality of machines for machining a workpiece including a plurality of machining operations such as turning, milling, or boring. The workpiece to be machined must pass from one machine to the other with all the problems of handling and setting involved. The passage of the workpiece from one machine to the other is often long and costly, above all when the workpiece is of large volume, all of these requirements resulting in the necessity to possess a plurality of machines of different types with the following drawbacks:
Machine tools including a steady are known from the German Pat. No. 2,528,677 and French Pat. No. 2,407,040 which comprise an elongated cradle carried by a rotary steady mounted on the frame of the machine, said cradle supporting a rotary table and being itself movable in translation in a direction parallel to the geometric axis of rotation of the steady. Tools vertically guided on the frame permit milling or turning operations.
However, these machines do not permit the carrying out of a plurality of machine operations of different types. Further, their rigidity is far from being perfect owing to the cumulative deformations of the steady, the cradle and the translation means so that they can only be used for operations of low power. In particular, turning cannot be carried out with powerful motors.
A support for a workpiece to be machined is moreover known from U.S. Pat. No. 3,700,288 which comprises a cradle rotatable about an axis with a rotary table on the cradle, but this workpiece holder is adapted to be fixed in position on a conventional machine tool and does not permit carrying out machining operations of different types either.
The object of the present invention is to overcome these drawbacks and to provide a new machining machine which is capable of carrying out on the same workpiece machining operations of different types, such as milling in the vertical, horizontal, or any other position, boring, vertical or horizontal turning, with high power.
Another object is to provide such a machine which is compact and of small overall size.
Another object of the invention is to provide such a machine which is of a simple and cheap type.
Another object of the invention is to provide such a machine which is adapted to numerical control or a control integrated in a robotized unit.
The invention provides a machining machine comprising a cradle rotatively swingable on a frame, a table adapted to receive the workpiece to be machined, rotatively mounted on the cradle, and machining means carried by the frame, wherein the cradle is mounted to be movable about an axis for swinging the cradle, the axis of rotation of the table being fixed in translation relative to the cradle, and the machining means comprise turning, milling and/or boring tools supported by means of which some are movable in three directions in space so that said tools can be moved toward said table within a large range of inclination of the cradle relative to its axis.
Preferably, the geometric axes of the cradle and table are concurrent and, in a particularly preferred manner, the geometric axis of rotation of the cradle is located about the upper surface, i.e. the surface receiving the workpiece to be machined, of the table.
According to an advantageous feature of the invention, the said machining means are supported by a general slide movable in a plane spaced from the axis of rotation of the cradle, said plane being preferably parallel to this axis.
These means advantageously comprise a drum carrying the lathe to
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patent: 3559530 (1971-02-01), Wagner et al.
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patent: 3643307 (1972-02-01), Ledergerber et al.
patent: 3700228 (1972-10-01), Peale
patent: 3798721 (1974-03-01), Schalles
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