摘要:
A device, a tool, and a method for machining, especially polishing, of an optical lens by means of a tool are proposed, an information medium on one working surface of the tool being optically acquired and removed as the lens is machined and thus the state of the tool being indicated.
摘要:
An apparatus and a method for processing an optical lens, whereby a block piece for the lens is first processed by cutting and then is provided with markings for positioning the lens on the block piece.
摘要:
A method for calibrating a miffing, cutting or grinding tool of a spectacle lens frame machining unit, for which a) in a first machining step, prior to shaping an edge or surface shape RF by the milling, cutting or grinding tool, the lens is measured by an optical measuring device, b) the shaping of an edge or surface shape RF is carried out by the milling, cutting or grinding tool, c) the generated edge or surface shape RF is measured by the optical measuring device, d) a deviation between the surface or edge shape RF so produced and the desired surface or edge shape target values is determined, and e) the tool is calibrated at least by adjusting the control variables. The invention further relates to a device for the initial working of edges, chamfers and/or grooves at the edges of lenses, wherein an optical measuring system for measuring surface or edge shapes RF and/or edges K of the lens prior to and/or after machining the lens is provided.
摘要:
A machining method for an eyeglass lens blank in which a bock piece is connected, by way of a connecting material, to a first side of the eyeglass lens blank for holding and supporting the eyeglass lens blank in a processing machine, wherein to this end a cavity is made between the block piece and the first side, at least using a sealing or supporting means, wherein the sealing or supporting means has an inner diameter Dd, Ds and sits against the first side in a sealing manner, the connecting material is filled into the cavity or connecting material is provided in the cavity and then the connecting material is cured, the eyeglass lens blank is placed into a milling and/or turning or grinding machine by way of the block piece cast on by way of the connecting material, wherein the eyeglass lens blank is supported on the first side by the connecting material across a diameter Dv that corresponds to the diameter Dd, Ds and wherein the blank and the connecting material are worked off in one of the following machining processes. An eyeglass lens blank having a diameter Dr, said blank being fastened to a block piece through the cast-on connecting material, wherein the connecting material has an outer diameter Dv. The diameter Dv is at most 2 mm to 6 mm, in particular at most 4 mm and is less than diameter Dr.
摘要:
A polishing head for use in a polishing machine for optical surfaces, having an axis of rotation and a base body having a holding structure intended to be arranged at a polishing spindle and having a transport element intended to be held at a tool change arm, the transport element being positionable against a holding element of the tool change arm in the axial direction relative to the axis of rotation in order to perform a tool change, wherein at least one locking element is provided which can be positioned against the tool change arm in the circumferential direction U such that a positive and/or non-positive joint results. A tool change arm of a polishing machine for optical surfaces, comprising a holding element intended to hold a polishing head having an axis of rotation, the holding element being positionable against a transport element of the polishing head in the axial direction in order to perform a tool change, wherein at least one guiding part is provided which, in relation to the polishing head, can be positioned against the polishing head in the circumferential direction U relative to the axis of rotation such that a positive and/or non-positive joint results.
摘要:
The invention relates to a machining machine for lenses, which comprises a first workpiece drive, configured as the transport receptacle and having a workpiece spindle, a workpiece changer for exchanging workpieces between the workpiece drive and a workpiece stock, and a machining station for machining a workpiece. The workpiece spindle of the workpiece drive can be rotated about an axis of rotation (c1). The workpiece drive can be swiveled about a first swiveling axis (b1) which is arranged at a right angle to the axis of rotation (c1). The work piece drive can be rotated about an axis of rotation (k) which is arranged at a right angle to the first swiveling axis (b1). The machining machine according to the invention is characterized in that at least one further workpiece drive is provided and has a spindle that can be rotated about a respective axis of rotation (c1, c2). Both workpiece drives can be swiveled about a first swiveling axis (b1, b2) which is arranged at a right angle to the respective axis of rotation (c1, c2). Both workpiece drives can be displaced and driven in a translatory manner about a translatory axis of displacement (x1, x2) which is arranged at a right angle to the first swiveling axis (b1, b2). Both workpiece drives can be rotated together about the axis of rotation (k).
摘要:
The toy vehicle is characterized in that a rear excavator is fastened to the toy vehicle, that a seat boom is rotatably arranged on a receiving block which is fastened to the toy vehicle, that a support leg is mounted on the receiving block and is pivotable between a raised position and a lowered position in which the support leg rests on the ground, and that the receiving block has mounted thereon a securing hook means which in a first position locks the support leg in the raised position and, at the same time, locks the seat boom in a predetermined angular position and which in a second position secures the support leg in the lowered position and, moreover, releases the seat boom for rotation. The toy vehicle can also be operated by small children and meets high safety standards.
摘要:
The toy vehicle is characterized in that a rear excavator is fastened to the toy vehicle, that a seat boom is rotatably arranged on a receiving block which is fastened to the toy vehicle, that a support leg is mounted on the receiving block and is pivotable between a raised position and a lowered position in which the support leg rests on the ground, and that the receiving block has mounted thereon a securing hook means which in a first position locks the support leg in the raised position and, at the same time, locks the seat boom in a predetermined angular position and which in a second position secures the support leg in the lowered position and, moreover, releases the seat boom for rotation. The toy vehicle can also be operated by small children and meets high safety standards.
摘要:
The sled is composed of two sled halves which are articulated via hinge means to each other such that the sled can be collapsed about its longitudinal center axis. In the unfolded state an upper section of a scissor-like bar rests with its bottom side on the top side of the associated other scissor-like bar. Thanks to this flat support of the scissor-like bars on one another, the sled is very stable. The unfolded operative state of the sled is automatically secured by the releasable locking mechanism.
摘要:
A device for milling and/or lathing workpieces including at least one machine bed, on which there is at least one tool holder and one workpiece spindle as part of a workpiece holder with an axis of rotation, whereby the tool holder has at least one tool drive with an axis of oscillation running parallel to the axis of rotation, whereby the workpiece holder and the tool holder can travel relative to each other in the direction of an axis of translation that runs at a right angle to the axis of oscillation. The workpiece holder has a linear drive that can travel in the direction of the axis of translation.