Abstract: A transfer machine: includes a frame, a table which is supported on the frame and can rotate with respect to the frame about a main vertical axis, and work holding assemblies mounted on the table. Each work holding assembly has at least one collet assembly for retaining a workpiece being machined. The collet assembly is able to rotate with respect to the table about a vertical workpiece rotation axis. The transfer machine includes at least one actuation motor in order to actuate rotationally the collet assembly and is provided with a driving shaft which can rotate about a respective driving axis. At least one transmission assembly can be activated selectively and is configured to transmit motion from the driving shaft to the collet assembly. At least one actuation motor is integral with the frame of the machine, with the respective driving shaft arranged horizontally.

Abstract: A transfer machine for machining operations includes a frame, a rotary table with a rotary feeding movement relative to a machine axis, a plurality of workpiece-holder members associated with the rotary table and spaced by a working radius (r) from the machine axis, and a plurality of workstations accessible by the workpiece-holder members as a result of the feeding movement of the table. The transfer machine further includes at least one rotary unit able to rotate a workpiece-holder member about a respective axis and relative to the table, wherein the rotary unit includes a motor assembly located in the machine base at a distance (d) from the machine axis which is less than the working radius (r).

Abstract: A rotary indexing transfer machine includes a machine frame; a rotating table, supported on the machine frame to rotate about an indexing axis; at least one workpiece carrying spindle having a hollow shaft for receiving a workpiece and a clamping device for clamping the workpiece inserted in the hollow shaft. The clamping device includes a collet is coupled to the workpiece carrying spindle. The workpiece carrying spindle is mounted on the rotating table, and the hollow shaft and collet are connected for joint rotation about a spindle rotation axis. The machine includes at least one support in fixed position next to the rotating table, at least one machining station with at least one machining unit supported on the support, to allow machining of the workpiece clamped in the collet. The machine includes at least one drive motor mounted on the rotating table, an indexing device mounted on the machine frame, and an indexing component.

Abstract: A holder system for mounting and aligning a machining device to a rotary transfer machine. The holder system includes a holder with a first part being mountable on a machine or being part of a machine as well as a second part which is releasably coupled to the first part in a defined first position. The second part is coupled to a third part, the third part coupled with the machining device. Positioning features are located between the second part and the third part to allow moving the third part relative to the second part in at least one spatial direction. Further, the holder system includes at least one alignment station that can releasably couple the second part of the holder to the alignment station in the first defined position and a measuring device configured to measure the position of the third part or of the machining device.

Abstract: The present application concerns a holder system for mounting and aligning a machining unit (30) to a machine (20), preferably to a rotary transfer machine. The holder system comprises a holder (1) with a first part (2) being mountable on a machine (20) or being part of a machine (20) as well as a second part (3) which is releasably coupled to said first part (2) in a defined first position. Said second part (3) is coupled to a third part (4), said third part including third coupling means (7) for coupling said third part (4) with a machining unit (30). Positioning means (5, 6) are located between said second part (3) and said third part (4) to allow moving said third part (4) relative to said second part (3) in at least one spatial direction.

Abstract: A rotary indexing machine (10) has a fixed machine frame, which is designed for holding a multiplicity of machining units (66) and comprises at least one support (70) Furthermore, the rotary indexing machine (10) has rotary table (40) rotatable relative to the machine frame about a vertical indexing axis (12). To create free space for the machining of a workpiece to be arranged on the rotary table (40), the support (70) is designed for the lateral attachment of at least one of the machining units (66). The machine frame is characterized by high rigidity and stability, a large free space for 15 machining workpieces being created at the same time in the region of the rotary table (40), and good accessibility the satellites (50), the indexing devices and the rotary table (40) being ensured for the adjustment setting-up of the machine.

Abstract: A rotary indexing machine (10) has a fixed machine frame, which is designed for holding a multiplicity of machining units (66) and comprises at least one support (70). Furthermore, the rotary indexing machine (10) has a rotary table (40) rotatable relative to the machine frame about a vertical indexing axis (12). To create free space for the machining of a workpiece to be arranged on the rotary table (40), the support (70) is designed for the lateral attachment of at least one of the machining units (66).

Abstract: A device for producing relative motion with two translational degrees of freedom between a spindle means (95, 195, 295 395) with a spindle which bears the first part of a first pair of parts formed from a workpiece and a tool, and a retaining element for holding the second part of the first pair of parts, has a first base part to which a first part of a second pair of parts which is formed from the spindle means (95, 195, 295, 395) and the retaining element is attached. The movement device furthermore comprises a second base part, and at least one of the two base parts can be moved in a straight line with respect to the other along a linear guide with a first translational degree of freedom.

Abstract: A device for producing relative motion with two translational degrees of freedom between a spindle means (95, 195, 295, 395) with a spindle which bears the first part of a first pair of parts formed from a workpiece and a tool, and a retaining element for holding the second part of the first pair of parts, has a first base part to which a first part of a second pair of parts which is formed from the spindle means (95, 195, 295, 395) and the retaining element is attached. The movement device furthermore comprises a second base part, and at least one of the two base parts can be moved in a straight line with respect to the other along a linear guide with a first translational degree of freedom.

Abstract: A device for producing relative motion with two translational degrees of freedom between a spindle means (95, 195, 295, 395) with a spindle which bears the first part of a first pair of parts formed from a workpiece and a tool, and a retaining element for holding the second part of the first pair of parts, has a first base part to which a first part of a second pair of parts which is formed from the spindle means (95, 195, 295, 395) and the retaining element is attached. The movement device furthermore comprises a second base part, and at least one of the two base parts can be moved in a straight line with respect to the other along a linear guide with a first translational degree of freedom.

Abstract: The novel process and device makes it possible to construct linear transfer installations without a special return transport system for workpieces or workpiece carriers, to keep the number of circulating workpieces or workpiece carriers to a minimum, and to increase or reduce the number of stations in the transfer installation in an arbitrary manner. The invention consists of organizing a flow of parts via an arbitrary number of successive stations by the alternating transfer in pairs between respective adjacent stations so that, as a result, a forward as well as a return movement of workpieces or workpiece carriers is produced. For this purpose, dumbbell-type double transfer devices are used between all stations, and alternate of the transfer devices are operated simultaneously to transfer the workpieces.