摘要:
The invention is new handle assembly station comprising an expanding-inserting means provided with a square traction pin, a spring preloader, an excursion cam centering device, a snap ring opener. The snap ring opener opens the spring, the cam centering device makes it possible to position the cam as required, while the spring preloader brings the central end of the spring to the correct position and rotates the outer end of the spring, thus preloading the spring itself until it is coupled to a pin, the expanding-inserting means starts operating with the central conical pin opening the square traction pin, and immediately afterwards the pin is lowered to introduce the handle through the plate until it is inserted in the central end of the spring, in the excursion cam and in the snap ring, and finally the snap ring is released, so that it gets into the apposite groove provided on the handle and holds the plate, the spring and the cam onto the handle.
摘要:
The present invention relates to a lens edge simulation tool (10) for measuring the fitment of a lens edge profile (LEP) with respect to a frame groove profile (FGP) of a spectacle frame (20), the lens edge simulation tool (10) having a defined edge profile (STP) like a lens edge profile (LEP) of a lens (6) being machined by a defined edger machine (4), the defined edge profile (STP) comprising a bevel portion (11) protruding towards a protrusion direction (A), wherein the lens edge simulation tool (10) further comprises a probe (15) provided at a distal end tip portion (14) of the bevel portion (11) and being moveable (M) along the protrusion direction (A) between a retracted position in which the probe (15) does not protrude from the defined edge profile (STP) and an extension position in which the probe (15) protrudes from the distal end tip portion (14). The present invention further relates to a system (1) and method for defining a lens shape for a machined lens (6) adapted to fit into a frame groove (21) of a spectacle frame (20).
摘要:
The invention is a new boring unit for complex parts, comprising a fixing pin (A), suitable for holding the piece (O) in its hole, and two concentric cylinders (Ci, Ce) coaxial with said pin (A) that are set rotating in the same direction by two electric motors (Mi, Me). The inner cylinder (Ci) is provided, at its end facing the grip (Ae) of the pin (A), with a conical toothing (Cie), and the outer cylinder (Ce) is provided, at its end facing the grip (Ae) of the pin (A), with a tool-holder (P) with radial translation mechanisms (Pm) of the tools (U) and a bevel gear wheel (Pie) meshing with the conical toothing (Cie) of the inner cylinder (Ci) and connected with the radial translation mechanism (Pm) of the tools (U). The radial translation of the tools (U) is obtained by rotating said cylinders (Ci, Ce) at different speeds by means of the electric motors (Mi, Me), that is, by generating a relative motion between them.
摘要:
The invention relates to a polishing tool (100) for polishing a spectacle lens (L) in a surface machining process, which comprises a tool body (110) for being rotatably supported about a rotational axis (RA1). The tool body (110) comprises a polishing surface (130) being outwardly exposed at a first axial end (101) of the tool body (110). Therein, the polishing surface (130) is axially bulged convexly or concavely with respect to the rotational axis (RA1) for polishing an optical surface (Li, L2) of the spectacle lens (L). The tool body (110) further comprises a channel (140) that extends axially through the tool body (110) from an inlet (142) to an outlet (141) to supply the polishing surface (130) with a polishing agent. The inlet (142) is provided at a second axial end (102) being opposite to the first axial end (101) with respect to the rotational axis (RA1). The outlet (141) is provided at the first axial end (101). The polishing surface (130) comprises at least one groove (150) that extends radially away from the outlet (141) to the perimeter of the polishing surface (130) to distribute the polishing agent across the polishing surface (130). The invention also relates to a system (200) and a method for polishing a spectacle lens (L) in a surface machining process with said polishing tool (100).
摘要:
The present invention is directed to a polarizing filter (20), comprising a plurality of areas (25), for passing light, each area (25) being separated from the others, wherein each of the areas (25) is a linear polarizer and at least two of the areas (25) have a different polarization axis. The present invention is further directed to an apparatus (1) for determining an orientation of a lens polarization axis of a polarized lens (31) and using said polarizing filter (20) as well as a method of determining an orientation of a lens polarization axis of a polarized lens (31) using said apparatus (1).
摘要:
The present invention refers to a process for machining a lens, comprising the steps of holding a semi-finished product (20) through a suction holding force which is active during an entire surface machining cycle of the semi-finished product (20); carrying out the surface machining cycle on a surface (20b) to be machined of the semi-finished product (20); and activating a pressure holding force depending on the level of the mechanical stresses exerted on the semi-finished product (20) during the surface machining cycle on said surface (20b).
摘要:
The invention is new handle assembly station comprising an expanding-inserting means provided with a square traction pin, a spring preloader, an excursion cam centering device, a snap ring opener. The snap ring opener opens the spring, the cam centering device makes it possible to position the cam as required, while the spring preloader brings the central end of the spring to the correct position and rotates the outer end of the spring, thus preloading the spring itself until it is coupled to a pin, the expanding-inserting means starts operating with the central conical pin opening the square traction pin, and immediately afterwards the pin is lowered to introduce the handle through the plate until it is inserted in the central end of the spring, in the excursion cam and in the snap ring, and finally the snap ring is released, so that it gets into the apposite groove provided on the handle and holds the plate, the spring and the cam onto the handle.