Abstract: A machine tool (1) includes: a front spindle (10) having a front chuck (12); a rear spindle (20) having a rear chuck (22); a controller (50) configured to cause the rear chuck (22) to perform a fastening operation for fastening a work (W) fastened to the front chuck (12) to the rear chuck (22); and a detector (60) configured to detect an abnormality caused by the fastening operation by the rear chuck (22), based on measurement data associated with a vibration of at least one of the front chuck (12) and the rear chuck (22).

Abstract: A method for manufacturing a large-area volume grating includes: (1) splitting a laser beam into two or more laser beams, converging the two or more laser beams into a sample at an angle less than 60° to form a first plasma grating; (2) moving the sample in a longitudinal direction of a plane vertical to the first plasma grating to etch out a first prefabricated volume grating; (3) moving the sample laterally to form a second plasma grating, an effective cross section of the first prefabricated volume grating partially overlapping with that of the second plasma grating, then moving the sample in a longitudinal direction of a plane vertical to the second plasma grating to etch out a second prefabricated volume; and (4) repeating steps (2) and (3) n times to obtain a volume grating in any size.

Abstract: A laser processing apparatus includes a stage configured to transfer a target substrate and including an opening, an electrostatic chuck disposed on the stage and including a plurality of holes, and a laser irradiation unit disposed above the stage and spaced apart from the stage and configured to irradiate a laser beam on the target substrate. A surface of the electrostatic chuck is in contact with the target substrate, the target substrate includes a plurality of etching regions to be etched by the laser beam and a non-etching region surrounding the plurality of etching regions of the target substrate, and the plurality of holes of the electrostatic chuck overlap the opening of the stage and the plurality of etching regions of the target substrate.

Abstract: A welding device for a plate laminated body according to an embodiment includes a welding torch, a chuck for gripping a plurality of laminated plates with a lamination direction being in a horizontal position, and at least one support extending along the lamination direction for supporting the plate laminated body from below.

Abstract: An automation unit for handling component carriers has an enclosure for arranging components carriers within a first, a second and a third stacking space. The enclosure has a loading opening for the first stacking space, a transfer device for transferring component carriers between the stacking spaces, and a separating device to selectively separate or release the first stacking space inwardly. A safety system for an intervention area is at the loading opening to interrupt the operation of the automation unit if it detects an intervention. The safety system may switch to partial monitoring mode, to full monitoring mode after completion of an automated loading process or deactivate in a manual loading mode when the separating device separates the first stacking space. The safety system may switch to full monitoring mode before the separating device releases the first stacking space. The automation unit can be loaded both automatically and manually safely.

Abstract: A tandem control system for a machine tool, according to the present invention, comprises: a numerical control unit; a main operation unit; a PLC which executes a control command via communication with the numerical control unit or the main operation unit; a servo drive which includes a notch filter unit and executes the control command from the PLC; a servo motor unit which is driven under the control of the servo drive; and a power conversion unit which is electrically connected to the servo motor unit and the servo drive so as to apply current to the servo motor unit, wherein the servo drive suppresses resonance due to the operation of the servo motor unit by controlling the application state of current transferred to the power conversion unit according to changes of notch &; filter coefficients calculated in real time at the notch filter unit.

Abstract: A bending operation mechanism comprises: an elastically bendable driving part; an elastically bendable driven part that is provided separate from the driving part; and a linking part that connects the driving part and the driven part, and tensions and bends the driven part in accordance with bending of the driving part. The driving part and the driven part each comprise an inner coil part and an outer coil part that are bendable with respect to the axial direction, and wound parts corresponding to the inner coil part are respectively fitted to pitches between adjacent wound parts of the outer coil part.

Abstract: A vehicle control apparatus having an unintended start suppression function of suppressing an unintended start is provided. The apparatus comprises a distance detection unit configured to detect a distance to an obstacle; a speed detection unit configured to detect a speed of an ego-vehicle; and a suppression support unit configured to perform suppression support for the speed of the ego-vehicle based on the speed and the distance to the obstacle, wherein the suppression support unit changes an operation distance for performing the suppression support depending on whether the unintended start suppression function has operated.

Abstract: A vehicle control method causes a controller to execute: vehicle speed determination processing of determining whether or not vehicle speed of an own vehicle is reduced to less than a predetermined speed threshold; lateral deviation detection processing of detecting lateral deviation of the own vehicle with respect to a lane center or a lane boundary line; target trajectory generation processing of, when determining that the vehicle speed is reduced to less than the speed threshold, generating a first target travel trajectory of the own vehicle in such a way as to suppress change in the lateral deviation at and after a vehicle speed reduction time point; avoidance target detection processing of detecting an avoidance target; and avoidance processing of avoiding the avoidance target by, after the vehicle speed reduction time point, adjusting deceleration of the own vehicle while the own vehicle travels along the first target travel trajectory.

Abstract: An obstacle tracking method and apparatus, a storage medium and an unmanned driving device are provided. An obstacle aggregation region in a first point cloud may be determined according to position information of each obstacle in the first point cloud acquired by the unmanned driving device. Then, an aggregated obstacle and a non-aggregated obstacle in the second point cloud acquired by the unmanned driving device are determined according to the obstacle aggregation region. In addition, a matching result of each aggregated obstacle is respectively determined based on a group matching rule, and a matching result of each non-aggregated obstacle is respectively determined based on a non-group matching rule. Finally, an obstacle tracking result is determined according to the matching result of each obstacle in the second point cloud.