Provided is a multiple spindle machine tool which is capable of sufficiently preventing tool exchange failure due to cutting chips and improving the freedom of machine operation. A left and right magazines are provided in the tool storage chamber as an automatic tool changer corresponding to a left and right spindles. A right and left shutters, each of which is arranged to open and close as the left and right spindles enter and exit between the machining chamber and the tool storage chamber, are provided for each of the spindles.

A pneumatic spindle with coolant through to the cutting bit is described. The pneumatic spindle includes a shank with a shank first end (USMA). A rotary union housing that is adapted to rotatably couple to the shank. A floating rotary union seal is rotatably coupled to an internal passage of rotary union housing. The rotary union housing includes a second end formed with a threaded circular opening and the pneumatic spindle first end is threaded to rotatably join with the threaded circular opening of the rotary union housing. The floating rotary union seal includes a first end, a floating rotary union seal second end and a floating rotary union seal internal passage. The floating rotary union seal second end formed as a circular bearing surface, and the floating rotary union seal internal passage directs the coolant fluid between the floating rotary union seal first end and the floating rotary union seal second end.

This machine tool is provided with: a partition that partitions a machining chamber and a tool storage chamber and that has an opening; a shutter; and a receiving member that is formed so as to receive cutting fluid. The partition includes a sidewall member that extends in the vertical direction and an inclined wall member inclined in such a manner so as to become lower from the sidewall member to the interior of the machining chamber. At least part of the opening is formed in the inclined wall member. The receiving member is positioned beneath the shutter, and in such a position so as to receive cutting fluid that drops down along the sidewall member when the shutter is opened.

A machine tool for machining workpieces comprises at least one tool spindle, at least one workpiece table, at least one first tool magazine, and at least one second tool magazine. The at least one tool spindle and the at least one workpiece table are movable relative to one another along a vertical axis and two horizontal axes to machine a workpiece that is clamped on the workpiece table with a tool that is clamped in the tool spindle. The vertical axis and the two horizontal axes are orthogonal to one another. The at least one first tool magazine, a tool set is provided that comprises a plurality of tools for machining, wherein the tools can be selectively clamped in the tool spindle. The at least one second tool magazine, a tool set is provided that comprises a plurality of tools for machining, wherein the tools can be selectively clamped in the tool spindle. Only one tool magazine of the at least one first tool magazine and the at least one second tool magazine is active at a time, so that exclusively the tool set from the respective active tool magazine is used for machining the clamped workpiece. There is also provided a corresponding method of machining workpieces.

A machine tool includes: a spindle that allows a tool to be detachably mounted thereon; a tool changing device that holds a plurality of the tools, and attaches and detaches any of the tools to and from the spindle; a date and time storage unit that stores date and time when operation of the spindle is stopped last; and a calculation unit that calculates unused time of the spindle on the basis of the date and time stored in the date and time storage unit, when the tool is to be detached from the spindle, wherein in a case where the unused time calculated by the calculation unit is longer than a predetermined threshold value, the tool changing device performs detaching motion of the tool from the spindle for longer time compared to a case where the calculated unused time is at or less than the threshold value.

A tool changing system that includes a tool mount adapter and a tool holder. The tool mount adapter is configured to be attached to a tool and selectively engage and disengage a tool bit. The tool provides movement to the engaged tool bit to perform work on a workpiece. The tool holder is positioned in proximity to hold the tool bit when the tool bit is not engaged by the tool. The tool holder can also selectively engage and disengage the tool bit.

A method and apparatus are disclosed for assembling an end effector for an automated modular tool. A processor is programmed with data corresponding to a portion of a part surface at a designated location. A setting fixture is driven with a plurality of linear motion actuators to a selected three-dimensional location relative to an adaptor bar of the modular tool that is attached to a frame. A tool setting head is rotated with a rotary drive. A platen is tilted with at least one platen tilting motor and gear set to angularly orient the platen to correspond to an angular orientation of the portion of the part surface at the designated location. An end effector is then placed on the platen and secured with a tooling arm to the adaptor bar.

A device for exchanging a polishing disc that coated with a polishing agent during operation includes the polishing disc being made from a foam material, foam rubber, felt or lambskin and fastened to a support plate of a polishing tool held on a robot. The device includes an exchanging device having at least one dispenser in which a stack of polishing discs is arranged. The dispenser has a discharge opening, the clear width of which is smaller than the assigned dimension of the polishing disc and larger than the assigned dimension of the support plate. An axially movable sliding device on which the stack rests is provided on the side facing away from the discharge opening.

A machine tool includes a spindle configured to hold a tool, a tool magazine configured to hold a plurality of tools and to exchange the tools with the spindle, and a cleaning mechanism configured to remove adhering objects adhered to the tool magazine by spraying fluid to the tool magazine.

A machine tool includes a turning position adjustment unit configured to control a turning drive unit so that, when a tool is transferred between a spindle and a grip, if an amount of sway of the tool is greater than or equal to a threshold value, a turret is turned and the amount of sway of the tool becomes less than the threshold value, and an origin point correcting unit configured to correct an origin point in accordance with a turning position of the turret acquired by a turning position acquisition unit, when the turret is turned by the turning drive unit so that the amount of sway of the tool becomes less than the threshold value.