An object is to provide a nozzle controller which can constantly cool a tool in a machine tool. A nozzle controller of a machine tool includes: a tool which is gripped in a spindle of the machine tool; a nozzle in which the angle and/or the position thereof with respect to the tool can be changed and which emits a fluid to the tool; a nozzle drive unit which drives the angle and/or the position of the nozzle; a contact acquisition unit which acquires contact between the tool and a work; and a control unit which controls the nozzle drive unit. The control unit calculates, when the contact acquisition unit acquires the contact, based on a length of the tool and a stroke of a feed axis in the direction of the spindle, the angle and/or the position of the nozzle such that the fluid emitted from the nozzle hits a side surface of the tool, and controls the nozzle drive unit based on the result of the calculation.

A warm-up evaluation device includes: a temperature data acquisition unit that acquires temperature data before warm-up operation when a machine performs the warm-up operation; a parameter value acquisition unit that acquires parameter values set in a program for performing the warm-up operation; an evaluation data acquisition unit that acquires evaluation data for evaluating a result of the warm-up operation; a learning unit that learns a machine learning model which receives the temperature data and the parameter values as an input and outputs the evaluation data on the basis of a plurality of warm-up operations performed by the same or the same types of machines; and an evaluation unit that inputs candidates for the parameter values to the machine learning model together with the temperature data and outputs the evaluation data when the same or the same types of machines perform a new warm-up operation.

A method for setting up an apparatus (100) which is formed for machining a workpiece with a tool (20) comprises: providing the tool (20) in the region of the apparatus (100), providing a line assembly (53) in the region of the apparatus (100), which is fitted with at least one outlet nozzle, transferring a first linear axis (A1) of the apparatus (100) to a changing position by moving at least one axis of the apparatus (100), receiving the tool (20) by a tool spindle (21) which is carried by the first linear axis (A1), and the line assembly (53) plus the at least one outlet nozzle by a clamping system which is carried directly or indirectly by the first linear axis (A1), or by an additional axis, wherein the receiving of the tool (20) and the receiving of the line assembly (53) occur successively or simultaneously.

Apparatus, systems, and/or methods for filtering, recapture, and/or recirculation of coolant are disclosed. In some examples, coolant (e.g., coolant fluid) is used to cool and/or clean a machine, such as a material removal machine, for example. In some examples, a recirculation tank may be in fluid communication with an inlet and/or outlet of a cabinet (and/or housing) of the machine. The recirculation tank may include a recapture reservoir having a filtering surface configured to prevent particulates, debris, and/or swarf from being recirculated with the coolant. A vibration device (e.g., a vibration motor and/or vibrating actuator), may be in contact with and/or configured to vibrate (and/or shake, rattle, oscillate, etc.) the filtering surface, recapture reservoir, and/or recirculation tank so as to keep the filter free from obstruction and/or help settle and/or compact filtered particulates in a bottom of the recapture reservoir and/or recirculation tank.

A spindle device includes: a spindle housing; a spindle shaft configured to be rotatably supported inside the spindle housing; a spindle mount having an insertion cavity into which the spindle housing is inserted along the axial direction of the spindle shaft; a flange portion projecting outward from the outer peripheral surface of the spindle housing and configured to be removably fixed to an end of the spindle mount that is closer to one opening of the insertion cavity; and a support member configured to support the spindle housing inserted in the insertion cavity by using, as a base, the other end of the spindle mount that is closer to the other opening of the insertion cavity.

A machine tool includes a machine body; a control panel; a peripheral device; a peripheral device frame that is adjacent to one side surface of the machine body and for which the top view of the area for installing the peripheral device is roughly rectangular, wherein the two corners of one end of the rectangle are supported, and the corner of the other end of the rectangle that is closer to the machine body is supported from below but the corner of the other end of the rectangle that is farther from the machine body is not supported from below; and a coolant filtration and supply device with a coolant tank disposed below the peripheral device frame so as to accept coolant discharged from the machine body, the coolant filtration and supply device being installed so as to be able to move toward and away from the machine body.

A horizontal lathe for manufacturing a porous optical fiber preform, the horizontal lathe being configured to hold and fix two opposite ends of a target in such a manner that a longitudinal direction of the target is a substantially horizontal direction, and cause the target to be rotated around an axis parallel to the longitudinal direction thereof as a rotation axis. The horizontal lathe includes a thermal expansion absorbing mechanism configured to absorb a change in dimension of the target, the change being due to thermal expansion of the target in a direction of the rotation axis.

A tool holder holds a cutting tool that cuts a workpiece while revolving about a rotational axis. The tool holder has a fixed part and a cutting part. The fixed part is held by a main shaft of a machine tool. The cutting part is provided integrally with the fixed part and has an asymmetric shape with respect to the rotational axis. The cutting tool is attached to the cutting part. The cutting part has a one-side part and an other-side part. The one-side part has a largest protruding amount from the rotational axis in the cutting part when viewed from an axial direction. The other-side part is located on a side of the rotational axis opposite to the one-side part. A bulk density of the one-side part is smaller than a bulk density of the other-side part.

A position measuring device for use on a machine tool includes a scale section that can be scanned by way of a scanner device and serves to detect a position of a first component of the machine tool in relation to a second component of the machine tool, which is movable in relation to the first component, when the scale section is arranged on the first component and the scanner device is arranged on the second component, and at least one holding element as a constituent of an indirect attachment for indirectly attaching the scale section to the first component of the machine tool. A material of the at least one holding element has a thermal expansion coefficient that is less than a thermal expansion coefficient of a material of the first component of the machine tool.

An object is to provide a nozzle controller which can constantly cool a tool in a machine tool. A nozzle controller of a machine tool includes: a tool which is gripped in a spindle of the machine tool; a nozzle in which the angle and/or the position thereof with respect to the tool can be changed and which emits a fluid to the tool; a nozzle drive unit which drives the angle and/or the position of the nozzle; a contact acquisition unit which acquires contact between the tool and a work; and a control unit which controls the nozzle drive unit. The control unit calculates, when the contact acquisition unit acquires the contact, based on a length of the tool and a stroke of a feed axis in the direction of the spindle, the angle and/or the position of the nozzle such that the fluid emitted from the nozzle hits a side surface of the tool, and controls the nozzle drive unit based on the result of the calculation.