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公开(公告)号：US11325216B2
公开(公告)日：2022-05-10
申请号：US16818753
申请日：2020-03-13
发明人： Jochen Bretschneider , Uwe Ladra , Elmar Schäfers , Torsten Schür
IPC分类号： B23Q11/00
摘要： A machine tool includes a first machine element movable in a travel direction and having first and second side faces. The first and second side faces of the first machine element run parallel to the travel direction and are oriented at a right angle to each other. The first machine element is moved in the travel direction in a guideway of a second machine element by a drive unit in a positionally controlled manner. The machine tool further includes first and second vibration dampers which are oriented at a right angle to the travel direction and configured to dampen vibrations of the first machine element in respective vibration directions. At least one of the first and second vibration dampers is oriented to solely dampen a vibration in a vibration direction that is neither parallel to the first side face nor parallel to the second side face.
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公开(公告)号：US10126729B2
公开(公告)日：2018-11-13
申请号：US14498038
申请日：2014-09-26
摘要： A control device of a machine with a plurality of position-controlled axes controls the position-controlled axes in accordance with a part program while processing a system program. Through the control of the position-controlled axes, an end effector is moved along a track defined by the part program via at least one intermediate element relative to a base body of the machine under position control. While processing the system program, the control device checks before control of the position-controlled axes with a parameterizable model of the machine, whether the end effector can move along the track without collisions. Before checking the part program, the control device receives initial measured values characteristic of an actual configuration of the machine, determines parameters of the model based on the initial measured values and parameterizes the model in accordance with the determined parameters.
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公开(公告)号：US12093016B2
公开(公告)日：2024-09-17
申请号：US17764049
申请日：2020-09-15
IPC分类号： G05B19/4093
CPC分类号： G05B19/40931 , G05B2219/35012 , G05B2219/45161
摘要： A numerical controller executes a system program. While executing the system program, the numerical controller executes a sub-program. On the basis of the execution of the sub-program, the numerical controller controls position-controlled shafts of a machine tool controlled by the numerical controller. The sub-program contains instruction sets which are retrieved sequentially one after the other by the numerical controller. The numerical controller only executes the retrieved instruction sets when the instruction sets comply with permitted boundary conditions. Otherwise, the instruction sets are not executed. Before executing the sub-program and while executing the system program, the numerical controller receives information defining the permitted boundary conditions via an interface protected from unauthorized access.
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公开(公告)号：US12088150B2
公开(公告)日：2024-09-10
申请号：US17442957
申请日：2020-03-17
发明人： Jochen Bretschneider , Uwe Ladra , Elmar Schäfers , Torsten Schür
IPC分类号： B23Q11/00 , G05B19/404 , H02K7/14 , H02K11/20 , H02K11/30
CPC分类号： H02K11/20 , B23Q11/0032 , G05B19/404 , H02K7/14 , H02K11/30
摘要： A machine tool includes a machine control unit to output control signals to drives for machine elements. A tool which machines a workpiece is thereby moved relative to the workpiece in a position-controlled manner. Arranged in a first region of one machine element is an active vibration damper to damp vibration in a second region of the machine elements as the workpiece is machined by the tool. In order to detect the vibration, a first sensor is arranged in the first region of the machine element and a second sensor is arranged on another machine element or in a different region of the one machine element. Actual values detected by the first and second sensors and corresponding target values are supplied to a dual controller which determines on the basis of these values, a resulting manipulated variable for the active vibration damper and actuates the active vibration damper accordingly.
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公开(公告)号：US10974385B2
公开(公告)日：2021-04-13
申请号：US16647347
申请日：2018-08-28
IPC分类号： B25J9/16
摘要： Movable elements of a machine are moved by a control device of the machine by controlling drives of the machine. To monitor the movement of the movable elements for collision with each other or with a stationary element, two monitoring devices check, independently from each other, using a computer program, whether there is a risk of collision in the working space. Depending on whether the monitoring devices detect a risk of collision or not, they intervene, independently from each other, in a corrective manner, in the control of the drives or not, and/or independently emit an alarm message or not. The two computer programs are designed in a diverse manner. The two monitoring devices differ from one another. One monitoring device is identical to the control device, while the other monitoring device is embodied as an industrial PC with a data link to the control device.
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公开(公告)号：US20210080927A1
公开(公告)日：2021-03-18
申请号：US17018829
申请日：2020-09-11
IPC分类号： G05B19/4061 , G05B19/4155
摘要： A numerical control system determines iteratively a group of position setpoint values for axes of a production machine based on presets. When no risk of a collision of one moved element with another element exists, the group of position setpoint values is stored in a buffer store. Another already stored group of position setpoint values is read from the buffer store which then controls the axes and moves the element along a path defined by the sequence of the groups of position setpoint values. This process continues for as long as no risk of a collision exists. If a risk of a collision exists, the numerical control system brings the axes to a standstill. Previously unknown real time events are considered only in the determination of the groups of position setpoint values not yet stored in the buffer store. The groups of already stored position setpoint values are not altered.
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公开(公告)号：US10365627B2
公开(公告)日：2019-07-30
申请号：US14657634
申请日：2015-03-13
发明人： Jochen Bretschneider
IPC分类号： G05B19/4061 , G05B19/19
摘要： A numerical controller of a processing machine determines corresponding setpoint axis values based on setpoint position values for position-regulated axes operating on machine elements. Before controlling the position-regulated axes, volumes to be occupied by protection bodies associated with the machine elements, a workpiece and a tool are defined and it is checked whether the protection bodies remain disjoint while controlling the position-regulated axes. Depending on the result of the checks, the controller either controls the position-regulated axes in accordance with the setpoint position values or merely executes an error response without control. The controller contains a position error field which specifies for any given setpoint axis value an actual position the tool relative to the workpiece. The position error field is taken into consideration, at least for a subset of the protection bodies, when defining the volumes to be occupied by the protection bodies upon activation of the position-regulated axes.
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公开(公告)号：US20170257370A1
公开(公告)日：2017-09-07
申请号：US15449339
申请日：2017-03-03
发明人： Jochen Bretschneider
CPC分类号： H04L63/10 , G05B19/042 , G05B2223/06 , G06F3/0623 , G06F3/0637 , G06F3/0647 , G06F3/067
摘要： A computer system includes a control device for controlling an industrial technical process, a logic unit and a memory device. The control device controls the industrial technical process in an operating cycle. It temporarily stores process data in the memory device when controlling the industrial technical process in an operating cycle. The logic unit accepts a request for the process data from an external computer outside of the computer system via an interface to a computer network. The logic unit transfers the process data stored in the memory device to the external computer in accordance with the request in an event of the request fulfilling an access condition. Otherwise, the logic unit preprocesses the process data stored in the memory device, so that the preprocessed process data have a reduced information content by a comparison with the stored process data.
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公开(公告)号：US20150355622A1
公开(公告)日：2015-12-10
申请号：US14732202
申请日：2015-06-05
发明人： Jochen Bretschneider , Thomas Pitz
IPC分类号： G05B19/18
CPC分类号： G05B19/182 , G05B19/41 , G05B2219/35097 , G05B2219/36252 , G05B2219/37087 , G05B2219/42207
摘要： Milling errors are to be prevented by repairing in particular NC parts programs by evaluating spatial information for smoothing a cutting or milling path section instead of evaluating only information along an individual cutting or milling path section. Relationships between adjacent cutting or milling path sections are thus taken into consideration in a smoothing process.
摘要翻译： 通过评估用于平滑切割或铣削路径部分的空间信息而不仅仅评估沿着单个切割或铣削路径部分的信息来修复特定NC零件程序来防止铣削误差。 因此在平滑处理中考虑相邻切割或铣削路径部分之间的关系。
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公开(公告)号：US11898616B2
公开(公告)日：2024-02-13
申请号：US17355980
申请日：2021-06-23
CPC分类号： F16F15/002 , B23Q15/12
摘要： A machine tool includes a machine element, an active vibration damper arranged on a region of the machine tool for damping a vibration of the machine element, and a vibration sensor facility arranged to detect the vibration of the machine element at a first point and at a second point of the machine tool, with the vibration of the machine element to be detected being smaller at the second point than at the first point. The active vibration damper is designed to damp the vibration of the machine element as a function of a variation between a first actual value detected by the vibration sensor facility at the first point and a second actual value detected by the vibration sensor facility at the second point.
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