The invention relates to a processing plant (1) comprising: at least one first working spindle (2); a tool magazine (6) for storing different processing tools (4), wherein at least one storage plane (10) having several tool receiving spaces (11) arranged next to one another is provided in the tool magazine (6); a tool change device (5) comprising at least one first gripper device (13) for exchanging the processing tool (4) held in the working spindle (2), wherein the gripper device (13) comprises at least one first gripper unit (15) and one second gripper unit (16) which are positioned at a gripper-unit distance (17) from one another.

The gripper units (15, 16) can be displaced between the working spindle (2) and the tool magazine (6).

The disclosure provides a milling system and method under different lubrication conditions. The system uses a tool to mill the workpiece, a force measuring system to measure the milling force, a tool change system to replace the tools, a tool storage to store the tools. It can store the tools, provide the lubricating oil to the milling surface, select different tools according to different processing conditions, select the best angle differences of the unequal spiral angle tools according to different conditions comprising dry cutting, casting-type lubrication, minimal quantities of lubrication or minimal quantities of nanofluid lubrication, and/or choose the optimal tool according to different cutting parameters in order to obtain the minimum milling force.

The disclosure provides a method and system for milling injected cutting fluid under different working conditions. By analyzing influence of airflow fields in a milling area under different working conditions on injection of cutting fluid, an influence rule of a helical angle and a rotation speed of a cutter on the flow field is quantitatively analyzed, an optimal target distance of a nozzle, an angle between the nozzle and a milling cutter feeding direction and an angle between the nozzle and the surface of a workpiece are comprehensively determined, the nozzle is set according to a determined setting manner, and lubricating oil is sprayed to the milling area by utilizing the nozzle.

A machine tool includes a rotatable spindle, a spindle drive, a tool magazine, a tool changer including a rotating shaft, a rotating shaft drive motor, an angular position detector, a tool change arm having gripping units at both ends, and a controller. After interchanging a first tool mounted on the spindle and a second tool held in a tool pot, when rotating the tool change arm to an intermediate position, rotation of the spindle is started as soon as the second tool mounted on the spindle and the gripping unit are out of contact with each other.

This tool exchange device for a machine tool uses an exchange arm to exchange tools between a processing area and a tool accommodation area. In the tool exchange device, an imaging device is used to capture an image of a tool in the tool accommodation area, operation parameters for the exchange arm when the exchange arm is used to exchange the tools are determined from the captured image of the tool, and the exchange arm is operated on the basis of the operation parameters to exchange the tool.

A fast tool changing method with pre-unclamping step for controlling operations of the spindle, tool unclamping cylinder, and tool changing arm. The spindle has one end clamping the tool at the clamping position. The method includes following steps. In a tool pre-unclamping step, the clamp end of the spindle moves the used tool to a pre-unclamping position; the tool unclamping cylinder pushes the used tool to leave a taper of the spindle. In a tool changing step, the tool changing arm rotates to clamp the used tool and pulls the used tool away from the clamp end, and further aligns a target tool with the clamp end. In a tool inserting step, the tool changing arm inserts the target tool into the clamp end, to be clamped therein. Therefore, the tool unclamping and tool clamping operations are accelerated.

A machine tool is provided with two vertically oriented tool spindles that are arranged to hold tools and that are movable vertically in a first direction and horizontally in a second direction orthogonal to the first direction. Furthermore, the machine tool is provided with two workpiece support devices for clamping workpieces in place. At least one of the two workpiece support devices is movable horizontally in a third direction orthogonal to the first and the second direction. The two tool spindles and the two workpiece support devices are mounted on a common machine frame with a common working space, wherein the two tool spindles are movable parallel to one another in the second direction. The two tool spindles are facing one another.

The invention relates to a machine tool, in particular a milling machine for dental purposes, with a workpiece magazine for receiving workpieces, optionally with the aid of a housing. The workpiece magazine (22) is also moveably mounted with respect to the machine tool (10) and has a fitting position (30) for fitting a new workpiece (18) in the magazine (22). The machine tool also has a housing (40), in particular a partial housing, for each workpiece (18), the housing at least partially receiving the workpiece (18), and/or has a lifting platform (32), which is arranged adjacent to the fitting position (30) and on which the housing (40) together with the workpiece (18) can be received and displaced. The invention also relates to a system comprising a machine tool and a workpiece.

Provided is a tool magazine capable of automatically exchanging a tool holder between the tool magazine and a spindle. A tool magazine includes: a magazine body; an operation lever disposed to the magazine body, the operation lever reciprocable in the axial direction of the spindle with the operation sleeve in a supportable manner, the operation lever including, an operation sleeve receiving hole configured to receive the operation lever, and a hook portion disposed in the operation sleeve receiving hole to be hooked in the receiving portion, an operation lever guide configured to guide the operation lever in the axial direction of the spindle; and an operation elastic body configured to urge the operation lever toward a basal end of the spindle against an elastic force of the holder elastic body.

The invention relates to a machine tool (100) for machining a workpiece, said machine tool (100) comprising a machine table (10) for clamping the workpiece, a work spindle (20) for receiving a tool for machining the workpiece, a work space (70) substantially defined by the machine table (10) and at least one first cover (30), and a tool changer (50) arranged outside the work space (70) and configured to change the tool received in the work spindle (20), wherein the machine tool (100) is further configured such that, during a tool change, the first cover (30) is moved, as a result of which the work space (70) of the machine tool (100) is expanded by a tool changing area (80) and an access surface (42), through which the tool changer (50) can be moved into the tool changing area (80), is exposed, and the work spindle (20) is positioned in the tool changing area (80) such that the tool changer (50) is able to change the tool received by the work spindle (20) within the tool changing area (80).