Patent•
Compact machining center for multifunction
06 Feb 1996-
TL;DR: In this article, a multifunction, compact machining center has a work spindle which can rotate at high speed, or controlled by a C axis servo driver, and a frame-shaped tool magazine, which is composed of a standing part and a rotatable part.
Abstract: A multifunction, compact machining center has a work spindle which can rotate at high speed, or controlled by a C axis servo driver, and a frame-shaped tool magazine, which is composed of a standing part and a rotatable part. Arranged on the standing part are enough internal and external turning tools to complete all turning processes on one workpiece. Driven tools are held on the rotatable part to do drilling, boring, milling, gear hobbing, grinding, lapping etc. on the same workpiece at arbitrary angles. Additionally, work units for quenching, laser machining, gear shaping, bevel gear cutting, measuring, loading and unloading can also be employed on the tool magazine. By means of movements of the tool magazine relative to the work spindle in the plane perpendicular to the Z axis, each cutting tool or working unit can be put into the working area of the workpiece sequentially so as to complete all machining, measuring, loading and unloading. This invention replaces several machining centers or an FMS, and advantageously, this compact machining center avoids accuracy loss and waste of time caused by repeated clamping.
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Patent•
17 Sep 1997
TL;DR: In this article, a numeric-control machine tool for turning and hobbing a mechanical part is presented, comprising of a main mandrel (2), which is provided with grip means for a part (30) and can be rotated about its own axis (2a), a first carriage (4), which supports a turret tool post (5), and a second carriage (6), supporting a gear hobbing tool head (7).
Abstract: A numeric-control machine tool for turning and hobbing
mechanical parts, comprising: a main mandrel (2), which is
provided with grip means for a mechanical part (30) and can
be rotated about its own axis (2a); a first carriage (4),
which supports a turret tool post (5) for turning and/or
milling and/or drilling; and a second carriage (6), which
supports a gear hobbing tool head (7). The first and second
carriages (4,6) can move on command, in a controlled manner,
with respect to the main mandrel (2) in order to selectively
move the tools installed on the turret tool post (5) and the
hobbing tools so that they machine the part (30) supported
by the main mandrel (2).
39 citations
Patent•
28 Aug 2001
TL;DR: In this paper, a turning device (lathe tool) 30 is provided to perform a turning operation on a workpiece and a gear cutting device 40 is provided for gear cutting on the workpiece.
Abstract: A headstock 10 having a chuck 12 and a tailstock 20 having a shaft 21 are mounted on a bed 1 and can move with respect to each other in the direction of the Z-axis, A carriage 50 is slidably mounted on the bad 1 and can move in the Z-axis direction with respect to the rotational axis of a spindle 11. A turning device (lathe tool) 30 is provided to perform a turning operation on a workpiece and a gear cutting device 40 is provided to perform a gear cutting on the workpiece. The turning device 30 and the gear cutting device are preferably slidably mounted on the carriage 50 in a side-by-side relationship. The turning device 30 and the gear cutting device 40 may have respective traverse slide bases 31 and 41. The traverse slide bases 31 and 41 are mounted on the carriage 50 and can move independently in the direction of the X-axis perpendicular to the axis of the spindle 11, i.e. in a traverse sliding direction.
33 citations
Patent•
17 May 1999
TL;DR: In this paper, a laser-machining operation is carried out before the cutting work in the processing cycle, a zero-offset being provided between the laser machining and cutting work, correcting any system errors with the help of a computer.
Abstract: Laser machining is often carried out using special machines or apparatus, with the workpieces having to be finished afterwards using appropriately equipped cutting machine tools According to the invention, a laser beam (5) is supplied on the headstock (17) of a machine tool (13), by means of a beam control tube (12) Said beam radiates into a focussing lens (35) at an articulation point (D) Said articulation point (D) is precisely guided and held in place in a centring cone (36) with its focussing lens (35) located underneath The laser-machining head can be removed from the headstock (17) by means of a swivel mechanism and the machine (13) can carry out cutting operations in the usual way The laser-machining operations are carried out before the cutting work in the processing cycle, a zero-offset being provided between the laser machining and the cutting work, correcting any system errors with the help of a computer
32 citations
Patent•
06 Sep 2006
TL;DR: In this article, a robotic manipulator is used to grasp a work piece and locate the work piece in a machining operation, such as, an EDM machining operations.
Abstract: Automated handling systems and methods for using the handling systems for handling a work piece in a machining process, for example, an electrical discharge machining (EDM) process, are provided. The handling systems include a robotic manipulator adapted to grasp a work piece and locate the work piece in a machining operation, such as, an EDM machining operation. The robotic manipulator includes tooling having gripping devices adapted to grasp and position the work piece so that the work piece can be transferred and positioned, for example, precisely positioned, whereby accurate machining of the work piece can be practiced with little or no custom tooling. Methods for handling a work piece are also disclosed.
28 citations
Patent•
24 Aug 2006TL;DR: In this article, a rotary table for a material processing machine such as a vertical milling machine utilizes direct drive motor(s) to precisely angularly position a work piece along one or more pivotal axes.
Abstract: A rotary table for a material processing machine such as a vertical milling machine utilizes direct drive motor(s) to precisely angularly position a work piece along one or more pivotal axes. The direct drive motor(s) are thermally insulated from the remainder of the machine to limit misaligning thermal expansion of the components of the machine. The motors may be symmetrically attached to their respective supports such that thermal expansion/contraction of the motor and surrounding components occurs symmetrically with respect to the motor to limit misalignment of the motor's rotational axis. A motor may mount to its respective support only at a first axial end thereof such that thermal expansion of a second axial end of the motor does not adversely shift the position of the first end. Axially narrow clamps selectively secure the rotors of the motors in desired positions.
25 citations
References
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Patent•
07 Apr 1993
TL;DR: In this paper, a machining center composed of a plurality of assemblies, with each assembly including a machine base, is presented, where a motor driven main spindle is adapted to be attached to the compound slide and is movable along multiple axes, with facilities being provided for collecting swarf and coolant.
Abstract: 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.
65 citations
Patent•
28 Jan 1987
TL;DR: A tool turret for machine tools, in particular lathes, has a tool disc which is rotatably mounted about the turret axis in a housing, can be indexed by an allocated drive and has a number of mounting bores arranged so as to be distributed in accordance with the tool stations.
Abstract: A tool turret for machine tools, in particular lathes, has a tool disc which is rotatably mounted about the turret axis in a housing, can be indexed by an allocated drive and has a number of mounting bores arranged so as to be distributed in accordance with the tool stations. Tool holders provided in each case with a mounting shank are mounted preferably interchangeably in the mounting bores. The tool holders carry fixed or rotating tools coupled to an allocated drive source. To widen the range of use, the tool disc is mounted on the housing via a guide device in such a way as to be adjustable in an adjusting axis running transversely to the turret axis, an adjusting device for the displacement along this axis being allocated to it.
40 citations
Patent•
11 Aug 1987
TL;DR: In this article, a machine tool comprising a table on which a spindle holding the workpiece moves in horizontal direction along the work piece is shown to be both axially and circumferentially movable.
Abstract: A machine tool comprising a table on which a spindle holding the workpiece moves in horizontal direction along the workpiece. A tool post is sidewardly movable toward the table. An arbor head is connected to the end of the post and is both axially and circumferentially movable. The arbor head includes a powered arbor for holding and possibly rotating a tool. The result is that the workpiece is movable in one direction and the arbor support is movable in two other orthogonal directions as well as being rotatable. Thereby, a variety of complex machining operations may be performed. A tool magazine and an automatic tool changer are provided.
26 citations
Patent•
26 Jun 1989TL;DR: A numerically controlled lathe which is capable of effecting combined machining comprises a frame constituting the main body, a main spindle driven to rotate, the main spindles holding a workpiece, a multiple-tool head having a plurality of tools, a turret head and a rear machining head as mentioned in this paper.
Abstract: A numerically controlled lathe which is capable of effecting combined machining comprises a frame constituting the main body, a main spindle driven to rotate, a main spindle chuck provided on the main spindle to hold a workpiece, a multiple-tool head having a plurality of tools, a turret head and a rear machining head. The multiple-tool head has three servomotors to move it along three axes which are perpendicular to each other. The body of the multiple-tool head has an annular frame structure. At least two rows of rotary and non-rotary tools for machining the workpiece are disposed on the multiple-tool head body in a direction parallel with one of the directions of movement. A tool driving motor is provided on the multiple-tool head body to drive the rotary tools. The rotary tools include a polygon machining tool for machining a polygonal workpiece. The multiple-tool head, the turret head and the rear machining head effect machining simultaneously or successively.
26 citations
Patent•
30 Sep 1970
TL;DR: In this article, eleven machine tool particularly intended for data-control are disclosed. A rotating workpiece is moved in relation to a lathe tool which is stationary during cutting, and tools such as drills are also provided for working on the end face of the workpiece.
Abstract: Eleven embodiments of machine tool particularly intended for data-control are disclosed. A rotating workpiece is moved in relation to a lathe tool which is stationary during cutting. Tools such as drills are also provided for working on the end face of the workpiece. In some embodiments the workpiece is movable in two directions mutually perpendicular to its rotational axis as well as along that axis. In some embodiments the machine may act as a milling, drilling or boring machine as well as a lathe. In some embodiments the rotatable workpiece holder may be replaced by a tool holder.
23 citations