In one aspect, a swiss-type machine tool is provided that includes a workpiece holding shaft, a workpiece supporting shaft, and a tool holder associated with the workpiece supporting shaft for holding at least one tool. The machine tool includes a drive operable to rotate the workpiece holding shaft and the workpiece supporting shaft around an axis. The workpiece holding shaft has a work holder configured to secure a workpiece to the workpiece holding shaft. The workpiece holding shaft is axially shiftable relative to the workpiece supporting shaft to adjust a position of the workpiece relative to the workpiece supporting shaft. The machine tool further includes a removable workpiece support, such as a guide bushing, configured to be releasably connected to the workpiece supporting shaft and rotate therewith. The workpiece support slidably contacts the workpiece and permits axial movement of the workpiece relative to the workpiece support.

In one aspect, a swiss-type machine tool is provided that includes a workpiece holding shaft, a workpiece supporting shaft, and a tool holder associated with the workpiece supporting shaft for holding at least one tool. The machine tool includes a drive operable to rotate the workpiece holding shaft and the workpiece supporting shaft around an axis. The workpiece holding shaft has a work holder configured to secure a workpiece to the workpiece holding shaft. The workpiece holding shaft is axially shiftable relative to the workpiece supporting shaft to adjust a position of the workpiece relative to the workpiece supporting shaft. The machine tool further includes a removable workpiece support, such as a guide bushing, configured to be releasably connected to the workpiece supporting shaft and rotate therewith. The workpiece support slidably contacts the workpiece and permits axial movement of the workpiece relative to the workpiece support.

A material removal system may control movement of a material removal machine based on whether a material removal tool is in contact with a sample. A material removal system may include a material removal machine (e.g., saw, grinder, polisher, and/or more general material preparation and/or testing machine) that is configured to move at the urging of one or more actuators. The system may further include control circuitry configured to control movement (and/or speed, acceleration, etc.) of the material removal machine (e.g., via the actuators) based on one or more power, thermal, position, and/or other parameters that indicate whether the material removal tool of the material removal machine is in contact with a sample.

A material removal system may control movement of a material removal machine based on whether a material removal tool is in contact with a sample. A material removal system may include a material removal machine (e.g., saw, grinder, polisher, and/or more general material preparation and/or testing machine) that is configured to move at the urging of one or more actuators. The system may further include control circuitry configured to control movement (and/or speed, acceleration, etc.) of the material removal machine (e.g., via the actuators) based on one or more power, thermal, position, and/or other parameters that indicate whether the material removal tool of the material removal machine is in contact with a sample.

Included are a polishing table provided with an eddy current sensor, the polishing table configured to rotate; a polishing head configured to face the polishing table, the polishing head configured to rotate, the polishing head having a surface which faces the polishing table and to which a substrate is configured to be attached; and a processor configured to generate preprocessed data on a target substrate by executing predetermined preprocessing on an output signal when the eddy current sensor is at each position facing a target substrate during polishing processing of a target substrate to determine a metal line height at at least one position of the target substrate by inputting preprocessed data on the target substrate to a learned machine learning model using a learning data set in which data after predetermined preprocessing is executed on an output signal when the eddy current sensor is at each position facing a substrate is set as an input and a metal line height at at least one position of the substrate is set as an output.

A machine tool includes: an advancing/retracting drive device causing a main spindle to travel back and forth with respect to a milling shaft; a clamp device provided in the milling shaft and clamping the main spindle; a feeding control section controlling the advancing/retracting drive device and the clamp device; and a reaction force sensor detecting reaction force against the advancing/retracting drive device from the main spindle. The feeding control section performs: in an unclamped state where the main spindle is not clamped by the clamp device, advancing/retracting control by which the main spindle is moved to a designated feeding position by the advancing/retracting drive device; and in a clamped state where the main spindle is clamped by the clamp device, reaction force servo control by which the advancing/retracting drive device is operated in a direction in which the reaction force detected by the reaction force sensor becomes small.

A machine tool includes: an advancing/retracting drive device causing a main spindle to travel back and forth with respect to a milling shaft; a clamp device provided in the milling shaft and clamping the main spindle; a feeding control section controlling the advancing/retracting drive device and the clamp device; and a reaction force sensor detecting reaction force against the advancing/retracting drive device from the main spindle. The feeding control section performs: in an unclamped state where the main spindle is not clamped by the clamp device, advancing/retracting control by which the main spindle is moved to a designated feeding position by the advancing/retracting drive device; and in a clamped state where the main spindle is clamped by the clamp device, reaction force servo control by which the advancing/retracting drive device is operated in a direction in which the reaction force detected by the reaction force sensor becomes small.

The present application discloses a motion control method for dual-spindle machining and a dual-spindle machine apparatus. A control device performs data reconstruction of segmentation and checkpoint setting according to first and second data, respectively, to correspondingly form first and second instruction sequences, thereby simultaneously controlling two motion control cards, allowing two machining devices coupled at a back end of the motion control cards to perform machining on two opposite sides of a workpiece. With the checkpoints arranged in the instruction sequences, the machining devices each having one machining tool are provided with a collaboration mechanism, so that the control device is allowed to continue sending instructions of the next segment to the two motion control cards upon arrival of both the instruction sequences at the checkpoints. Thus, the simultaneous dual-spindle apparatus not only achieves the feature of high efficiency of single-side separate machining but also provides the feature of dual-side collaboration, solving the issue of damage caused by mutual interference during a synchronous dual-spindle operation.

The present application discloses a motion control method for dual-spindle machining and a dual-spindle machine apparatus. A control device performs data reconstruction of segmentation and checkpoint setting according to first and second data, respectively, to correspondingly form first and second instruction sequences, thereby simultaneously controlling two motion control cards, allowing two machining devices coupled at a back end of the motion control cards to perform machining on two opposite sides of a workpiece. With the checkpoints arranged in the instruction sequences, the machining devices each having one machining tool are provided with a collaboration mechanism, so that the control device is allowed to continue sending instructions of the next segment to the two motion control cards upon arrival of both the instruction sequences at the checkpoints. Thus, the simultaneous dual-spindle apparatus not only achieves the feature of high efficiency of single-side separate machining but also provides the feature of dual-side collaboration, solving the issue of damage caused by mutual interference during a synchronous dual-spindle operation.

An operating facility for a CNC control system controls a machine tool with a plurality of machine axes. A tool inserted into a tool receptacle of a tool spindle can be displaced relative to a workpiece and/or rotated about a tool spindle axis. A rotary controller manually operated by an operator can set a feed rate with which the tool is moved relative to the workpiece and/or a spindle rotary speed. A graphical user interface is used to adjust the effect of an operating action carried out by the rotary controller on the feed rate or the spindle rotary speed. This improves the flexibility with regard to adaptation to the requirements of the individual user.