The present invention relates to a transport device (100) for transporting one or more handling devices, each for handling a pallet (300) and/or a workpiece (1) on a machine tool (1000) which is set up on a base surface for machining the workpiece (1), wherein the transport device (100) is freely movable on the base surface for positioning the one or more handling devices relative to the machine tool (1000), in particular within a region in front and/or next to the machine tool (1000) and/or in front and/or next to a working space of the machine tool (1000).

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.

A machining center configured for machining workpieces includes at least one column, a beam, at least one slider, a first driving member, a second driving member, a first main shaft and a second main shaft. The column can be configured for supporting the beam. The slider can be disposed on the beam and slidable along a length direction of the beam. Both the first main shaft and the second main shaft can be arranged on the slider and located on two opposite sides of the beam. The first driving member can be configured for driving the slider to slide relative to the beam. The second driving member can be configured for driving the first main shaft and the second main shaft to operate. The first main shaft and the second main shaft can be configured for synchronously or asynchronously machining the workpieces.

A machining center configured for machining workpieces includes at least one column, a beam, at least one slider, a first driving member, a second driving member, a first main shaft and a second main shaft. The column can be configured for supporting the beam. The slider can be disposed on the beam and slidable along a length direction of the beam. Both the first main shaft and the second main shaft can be arranged on the slider and located on two opposite sides of the beam. The first driving member can be configured for driving the slider to slide relative to the beam. The second driving member can be configured for driving the first main shaft and the second main shaft to operate. The first main shaft and the second main shaft can be configured for synchronously or asynchronously machining the workpieces.

The present disclosure includes a part hold-down assembly for retaining an oversized part. The part hold-down assembly is aligned along a central force axis and applies a downward force onto the part. The part-hold down assembly includes a top plate, a bottom plate, and a compression assembly extending between the top and bottom plates. The compression assembly includes two, parallel biasing assemblies that extend along compression axes that are parallel to but offset from the central force axis. Each biasing assembly including an upper collar, a lower collar and a resilient biasing member, in one embodiment in the form of a coil spring, retained between the upper and lower collar. The parallel biasing assemblies are positioned on opposite sides from each other about the central force axis, and may be spaced away from the central force axis an equal distance.

A device for the precise angular positioning of tool-holders includes a front part, a rear part, and a plug cooperating with a pair of pins arranged orthogonally relative to the plug. A first portion of the plug is inserted in a blind hole formed in the front part and a second portion of the plug is inserted in a corresponding blind hole formed in a front area defining a plate on the rear part of the tool-holder. The plate of the rear part has an upper surface in which a pair of bored holes is formed having equal diameters and depths. The bored holes extend vertically in the plate and orthogonally relative to the plug. A pin is rotatably inserted in each of the pair of bored holes to selectively rotate the plug in a clockwise or counter-clockwise direction to orientate the front part relative to the rear part.

The present invention relates to a machining center, and more specifically to a horizontal multi-spindle machining center, in which 2-axis (Y- and Z-axis) or 3-axis (X-, Y- and Z-axis) transfer drive units are disposed in the machining center installed to machine workpieces, in which a ram equipped with spindles is moved in the up-down, front-back, and/or left-right directions of the workpieces, in which the spindles are configured to include a plurality of spindles, i.e., 2 to 8 spindles, so that a plurality of workpieces may be machined simultaneously, and in which tool change is simultaneously performed for tools fastened to the plurality of spindles and configured to machine workpieces by using an auto tool changer (ATC), so that tool change speed may be improved and thus manufacturing efficiency may be improved.

A rotary indexing machine comprises at least one indexing plate, which is in at least one operating state configured to accommodate and transport at least one work piece, and with at least one clocking cell comprising at least one accommodating unit with at least two opposite-situated accommodating elements, which are configured for together accommodating the at least one work piece from the indexing plate, and comprising at least one machining unit for machining the work piece accommodated by the accommodating unit, wherein the at least one clocking cell comprises at least one bridge unit, which extends at least partially over the indexing plate in an axial direction and is configured to guide the at least two accommodating elements of the accommodating unit in a shared coordinate system.

A machine tool includes a base, a table, a main spindle, and a trunnion unit. The table is installed on the base. A tool is mounted to the main spindle. The main spindle is caused to approach a workpiece on the table along an up-down direction. The trunnion unit is configured to rotatably hold the table on which the workpiece is placed using a rotation axis along a front-rear direction as a center. The trunnion unit is disposed movable in a right-left direction.

A machining system with a configuration in which working machines, including a machine tool, are configured to be disposed in a line, and in which multiple working machines perform operations on one work in order, is provided. The machining system includes: a base; and multiple working machine modules which are mounted on the base and are arranged in an arrangement direction, and has a configuration in which each of the multiple working machine modules is capable of being drawn out from the base along a track extending in an intersecting direction intersecting with the arrangement direction.