摘要:
A system for a dental superstructure to be attached to an implant using a digital model description of a shape of the superstructure, the superstructure including first and second elements. The system comprises a computing device arranged to (a) analyze a recorded real clinical situation or shaped clinical situation of an implant axis and insertion axis, (b) compute a shape of the dental superstructure based at least in part on the determined implant axis, (c) generate digital data representing the shape of the superstructure, and (d) separate the computed shape into first digital data representing a shape of the first element to be connected to the implant and second digital data representing a shape of the second element to be connected to the first element, the shape of the first element being optimized, at least in part, based on a tilt angle between the determined implant axis and insertion axis.
摘要:
The invention relates to holding means for a blank for the production of dental fitted shells, including connection geometry for the blank and a shaft for attachment thereof in a chuck of a processing machine. The holding means has, above the shaft, survey geometry, the orientation of the connection geometry relative to the survey geometry being known.
摘要:
The invention relates to a method for automatically creating a dental superstructure for joining to an implant based on a digital model description of the shape. To this end: the actual clinical situation or an arranged clinical situation of the implant (3; 13) is recorded in the form of digital data; this situation is analyzed; the implant axis (5; 16) is determined; the optimal shape of the superstructure (1, 2) is calculated while taking a set of structural rules into account, and; a production machine is used for producing the individual parts from at least one blank (11) based on the digital data.
摘要:
The invention relates to holding means for a blank for the production of dental fitted shells, including connection geometry for the blank and a shaft for attachment thereof in a chuck of a processing machine. The holding means has, above the shaft, survey geometry, the orientation of the connection geometry relative to the survey geometry being known.
摘要:
A method for the production of medical fittings, in particular dental fittings, is proposed. A workpiece (1), from which the fitting is produced, has material removed from it by machining with a tool (7). The tool (7) and the workpiece (1) execute a relative movement with respect to each other along a fixed trajectory. The instantaneous loading of the tool is used to control the speed of this relative movement. In order to avoid the load peaks which occur here, and to ensure a more uniform control, it is proposed that the expected loading of the tool along the trajectory is also calculated and is used to control the speed.
摘要:
A sensor arrangement for object recognition in a monitored zone is provided having a first and second distance-measuring optoelectronic sensor whose fields of vision overlap, and having a common control unit which is formed for determining a position of a calibration target in the overlap region with respect to the first and second sensor to determine a transformation instruction between coordinate systems of the sensors in a registration mode so that measured points of the sensors can be combined in a common global coordinate system. The common control unit is designed to determine positions of the calibration target with respect to the first and second sensor and to determine that transformation instruction which brings a connection line between the positions with respect to the first sensor's coordinate system to cover the connection line between the positions with respect to second sensor's coordinate system.
摘要:
An apparatus for the recognition an object in space in accordance with the pulsed time-of-flight principle. The apparatus has a pulsed laser and a photoreceiver arrangement which receives the light pulses reflected back from the object present in the space. The apparatus has a first light deflection apparatus which outputs a first angular position signal representative of its instantaneous angular position to the evaluation circuit, wherein the first light deflection apparatus is arranged rotatably or pivotably about a first axis of rotation and is made for the transmission of light pulses following one another at changing angles in a first plane, wherein a second light deflection apparatus is arranged between the first light deflection apparatus. The apparatus outputs a second angular position signal representative of its instantaneous angular position to the evaluation circuit which has a deflection plate which is arranged rotatably or pivotably about a second axis of rotation.
摘要:
An apparatus for the control of at least one safety-relevant function of a machine is described having a machine control for the control of the movements of the machine, having at least one sensor for the sensing of an object inside a monitored zone and having an evaluation unit for the setting of a danger zone and for the triggering of the safety-relevant function on the intrusion of the sensed object into the danger zone. To set the danger zone, the evaluation unit is coupled to the machine control and the evaluation unit is designed for the derivation of the parameters required for the setting of the danger zone starting from the control signals used by the machine control for the movement control of the machine. A corresponding method is furthermore described.
摘要:
A method for detecting an object inside a monitored zone includes monitoring at least a part of a monitored zone. Sensors generate respective single digital images of the total monitored zone, with the single images of all sensors being generated in a uniform coordinate system. Coordinate points of the single images are flagged as “safe” by each sensor if they are free of the object, with all other coordinate points being flagged as “unsafe”. The single images are each transmitted to an evaluation unit and are superimposed to form a resulting total image. The coordinate points of the total image, which are flagged as “safe”, correspond to those flagged as safe in at least one of the single images. All other coordinate points of the total image are flagged as unsafe. The coordinate points flagged as unsafe in the total image are used for the determination of the object coordinates.
摘要:
Current position data is determined of a first machining tool in a machining space having a second machining tool, the second tool having known position data with regard to the position data of the first tool which are to be determined, the first tool and the second tool being movable toward and away from one another, the first tool to be determined in its position comes into contact with a machining surface, known in its position, of the second machining tool, the rotary speed of a drive motor for the second tool being set to a starting rotary speed which is so low that the rotary speed of the second tool is measurably reduced when the tool comes into contact.