摘要:
A tool head for moving a tool includes a plurality of moveable axles which allow to move the tool linearly and rotationally. A combination drive is provided for driving a shaft such that the shaft is able to execute a linear movement and rotational movement.
摘要:
The invention relates to a tool head for moving a tool (6) having a plurality of mobile shafts (2, 4, 5, 8, 11) which allow to move the tool (6) linearly and rotationally. The invention also relates to a combination drive (10) for driving a shaft by means of which the shaft (11) driven by the combination drive (10) can perform a linear and rotational movement and to the use of a combination drive (10) for driving a shaft (11) of a tool head for moving a tool, the shaft (11) driven by the combination drive (10) being capable of performing a linear and a rotational movement. The invention finally relates to a method for movement control. The invention provides a tool head that allows very high dynamics of movement of the tool.
摘要:
A device for compensating a torque produced on a movable axle in a machine tool or production machine by a gyrostatic effect includes a rotating useful machine system attached to the movable axle and producing a useful angular momentum, and a rotating machine counter-system attached to the axle and producing a counter angular momentum. The magnitude of the counter angular momentum is substantially identical to the magnitude of the useful angular momentum. The useful torque produced by a movement of the rotating useful machine system through a temporal change of the useful angular momentum is at least partially compensated by a counter-torque produced by a temporal change of the counter angular momentum. This arrangement represents a simple device for compensating a torque produced by the gyrostatic effect on a movable axle of machine tolls and production machines.
摘要:
The invention relates to a device for decoupling an attachment (7a, 7b, 7c, 7d) from a moving machine element (4) of a machine tool, production machine or of a robot. In order to carry out the decoupling, the attachment (7a, 7b, 7c, 7d) is joined to the machine element (4) via a damping device (13). The invention provides a simple device for decoupling an attachment from a moving machine element of a machine tool, production machine or of a robot.
摘要:
A device for compensating a torque produced on a movable axle in a machine tool or production machine by a gyrostatic effect includes a rotating useful machine system attached to the movable axle and producing a useful angular momentum, and a rotating machine counter-system attached to the axle and producing a counter angular momentum. The magnitude of the counter angular momentum is substantially identical to the magnitude of the useful angular momentum. The useful torque produced by a movement of the rotating useful machine system through a temporal change of the useful angular momentum is at least partially compensated by a counter-torque produced by a temporal change of the counter angular momentum. This arrangement represents a simple device for compensating a torque produced by the gyrostatic effect on a movable axle of machine tolls and production machines.
摘要:
Parallel kinematics with rod guidance are nowadays used in machine tools, production machines and robotics. Changes in rod length caused by the special position of the moving work platform (P), by its acceleration and other force impact, can lead to positional errors. Such errors are eliminated by means of piezo-actuators (PA1–PA6) which are integrated into the rods (S1 to S6).
摘要:
The invention relates to a method and a control unit (8) for guiding the displacement of a displaceable machine element (9) of a machine, said method comprising the following steps that are carried out in the control unit (8): a) input of a travel displacement (Xv) that is to be carried out by the machine element (9) and an optimisation criterion (OpK); b) determination of a displacement profile (Xsollk(t)) using the travel displacement that is to be carried out by the machine element (9) and the optimisation criterion (OpK), c) determination of a target position variable (Xsoll(n)) by means of the displacement profile (Xsollk(t)), d) output of the target position variable (Xsoll(n)) to a controller (6) for carrying out the travel displacement of the machine element (9). The invention provides a simple method and a simple control unit (8) for optimising the guidance of the displacement of a displaceable machine element (9) of a machine. The method permits a user to directly influence the optimisation of the travel displacement.
摘要:
The excitation of an oscillation in a mechanical system, such as a machine element, subjected to a jerk can be suppressed or at least attenuated by rounding a corresponding jerk curve and/or by tuning the stop band of a bandstop filter to the characteristic frequencies of the mechanical system or machine element. In combination, both measures can improve the positioning accuracy while at the same time minimizing excitation of oscillations.
摘要:
According to the invention, an X-ray examination may be simply and rapidly carried out and hence produce a sharp X-ray image with an X-ray source (27) and/or X-ray receiver (35) an X-ray examination system (15 and 31 and 43) which may be displaced relative to the mounting position thereof by means of an actuator (10), despite a system construction which may be caused to oscillate at a resonant frequency (5) dependent on the corresponding mounting position, about the mounting position, whereby according to the inventive method, at least one parameter relevant to the resonant frequency, dependent on the corresponding mounting position, is determined, a set guided movement (4), counteracting the cause of oscillation in order to achieve a movement condition for the X-ray source (27) or X-ray receiver (35) necessary for the X-ray examination, is determined depending on the at least one corresponding parameter and the guided movement of the X-ray source (27) and/or X-ray receiver (35) controlled using the actuator (10) according to the set guided movement (4).
摘要:
The invention relates to a storage and retrieval system having at least one mast, which is supported at its lower mast end on a running rail via at least two running wheels and can be moved along the running rail guided by at least one driven running wheel of the running rail, having a guide rail (2), which is arranged in the region of the upper mast end (1) and extends parallel to the running rail, having guide rollers, which are mounted such that they can rotate at the upper mast end (1) and bear against the guide rail (2) on both sides so as to guide the mast. In order to damp the mast oscillations occurring during movement, at least one friction roller (4) is provided that rolls on the guide rail (2) and an eddy current brake (7) is provided that is driven by the friction roller (4).