序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
101 Manufacturing method of optical component or molding die therefor US11645420 2006-12-26 US07793403B2 2010-09-14 Yasuhiro Matsumoto
A method of manufacturing an optical component or a molding die for the optical component, the method comprising the steps of: cutting a surface of a work with a tool by rotating the tool around its axis with a cutting edge facing outward and moving in a circle to cut the work surface at a point of the circle while relatively moving the tool and the work in a line direction crossing to the axis of the tool at a predetermined feed speed; and cutting the work surface in a next line after relatively moving the tool and the work in a pitch direction perpendicular to the line direction by a pick feeding distance in such a condition that: tool rotation speed (S): 10000 to 30000 rpm; feed speed (F): 300 to 2000 mm/min; rotating radius (D) of a cutting edge of a tool: 5 to 15 mm; pick feeding distance (f): 0.01 to 0.04 mm; nose radius (r) of a cutting edge of a tool: 5 to 20 mm. The method allows to form a surface of a work into a free-form surface having a surface roughness of approximately 10 nm or less.
102 Method and tool head for machining optically active surfaces, particularly surfaces of progressive spectacle lenses, which are symmetrical in pairs US12259498 2008-10-28 US07757373B2 2010-07-20 Wolf Krause; Andreas Bielke
A method and a tool head are provided for the chip-removingly machining of pairwise symmetrical, optically effective surfaces, in particular of surfaces of progressive power spectacle lenses. The spectacle lenses are rotated about a first axis and are displaced along the axis. Further, a chip-removing tool is provided being positioned and being adapted to be fed-in, such that a cutting edge of the tool is guided over the surface along a spiralled path and along an elevation function given by the shape of the spectacle lens, when the latter is rotated about the first axis. For machining right side spectacle lenses and left side spectacle lenses, the right side spectacle lenses are rotated about the first axis in a first rotational direction, and the left side spectacle lenses are rotated about the first axis in a second rotational direction opposite the first rotational direction. The tool head comprises a chucking structure defining an axis of the tool head, and a tool carrier section having at least two lathing tools arranged at a periphery thereof. The one lathing tool of the pair is oriented in the one circumferential direction of the periphery, and the other lathing tool of the pair is oriented in the opposite circumferential direction of the periphery. At least one, preferably all of the lathing tools are provided with an adjustment device allowing an adjustment of a point of engagement of the lathing cutting edge.
103 METHOD AND DEVICE FOR PROCESSING LENS US12443974 2008-03-27 US20100112907A1 2010-05-06 Keigo Hasegawa; Yoshihiro Kikuchi; Shigeru Takizawa
The optical surface of a lens (21) held and rotated by the rotating shaft (12) of a lathe is cut or ground into an aspherical surface from a direction perpendicular to the axis of the rotating shaft (12) and the axial direction of the rotating shaft (12) while a processing locus (t) which is concentric or spiral about the rotating shaft (12) as the center is formed. In processing, the lens (21) is arranged in a grinding region (20) at a position spaced apart from the turning center (Zo) of the processing locus (t).
104 Shaping apparatus US10557392 2004-07-07 US07666065B2 2010-02-23 Michael Langenbach
A shaping apparatus for shaping a flotation core includes a worktable. At least one support is adjustably mounted on the worktable to be adjustable at least along a z-axis and configured to support the core. At least one engagement mechanism is mounted on the worktable and is displaceable relative to the worktable to engage and retain the core in position on the worktable. A gantry supports a rotary shaping machine so that a tool of the machine rotates in a y-z plane. The worktable and the gantry are displaceable relative to each other along x-, y- and z-axes. A displacement mechanism displaces the worktable and the gantry relative to each other on receipt of suitable control signals.
105 Raster cutting technology for ophthalmic lenses US10910674 2004-08-03 US07494305B2 2009-02-24 James Daniel Riall; Walter Dannhardt; Roland Mandler; Tobias Müller
A raster cutting apparatus and method for producing accurately formed, aspheric ophthalmic lenses having a good quality surface finish. The accurate form and good surface finish are obtained by using a substantially spherically shaped cutting tool having a large radius. The methods include utilizing a cutting path which provides substantially constant cutting-force, such as a constant surface-cutting-speed raster pattern.
106 Method and device for cutting freeform surfaces by milling US10552300 2004-07-02 US20070172320A1 2007-07-26 Arndt Glaesser
A method and a device for cutting freeform surfaces is disclosed. In 5-axis cutting, a workpiece is milled by a tool, i.e., a milling cutter, in such a way that a desired freeform surface is obtained. The tool is moved for cutting along at least one tool path, i.e., cutting path, defined on the basis of interpolation points in relation to the workpiece. According to this invention, a tool vector in the form of leading angles and setting angles is defined for each interpolation point on the tool path. For each interpolation point a normal vector is determined from the leading angles and the setting angles and also from a drive vector determined for each interpolation point. The normal vector in each interpolation point on the tool path is used for a 3D-radius correction for equalizing/compensating for deviations in dimensions of the milling cutter.
107 Method and tool head for machining optically active surfaces, particularly surfaces of progressive spectacle lenses, which are symmetrical in pairs US11480213 2006-06-30 US20070062015A1 2007-03-22 Wolf Krause; Andreas Bielke
A method and a tool head are provided for the chip-removingly machining of pairwise symmetrical, optically effective surfaces, in particular of surfaces of progressive power spectacle lenses. The spectacle lenses are rotated about a first axis and are displaced along the axis. Further, a chip-removing tool is provided being positioned and being adapted to be fed-in, such that a cutting edge of the tool is guided over the surface along a spiralled path and along an elevation function given by the shape of the spectacle lens, when the latter is rotated about the first axis. For machining right side spectacle lenses and left side spectacle lenses, the right side spectacle lenses are rotated about the first axis in a first rotational direction, and the left side spectacle lenses are rotated about the first axis in a second rotational direction opposite the first rotational direction. The tool head comprises chucking means defining an axis of the tool head, and a tool carrier section having at least two lathing tools arranged at a periphery thereof. The one lathing tool of the pair is oriented in the one circumferential direction of the periphery, and the other lathing tool of the pair is oriented in the opposite circumferential direction of the periphery. At least one, preferably all of the lathing tools are provided with adjustment means allowing an adjustment of a point of engagement of the lathing cutting edge.
108 Shaping apparatus US10557392 2004-07-07 US20060223420A1 2006-10-05 Michael Langenbach
A shaping apparatus for shaping a flotation core includes a worktable. At least one support is adjustably mounted on the worktable to be adjustable at least along a z-axis and configured to support the core. At least one engagement mechanism is mounted on the worktable and is displaceable relative to the worktable to engage and retain the core in position on the worktable. A gantry supports a rotary shaping machine so that a tool of the machine rotates in a y-z plane. The worktable and the gantry are displaceable relative to each other along x-, y- and z-axes. A displacement mechanism displaces the worktable and the gantry relative to each other on receipt of suitable control signals.
109 Gauging system for sculptured surfaces US204693 1980-11-06 US4355447A 1982-10-26 Paul DiMatteo; Robert Segnini; Paul Rademacher
An arrangement for removing excess material from an object surface, to provide a desired finished surface. Holes are drilled into the object so that the bottoms of the holes lie on the desired finished surface. The holes have a shape so that the observed hole diameter at the prevailing surface of the object is dependent on the hole depth and thereby dependent on the amount of material remaining to be removed between the prevailing surface and the desired finished surface. The prevailing surface is continuously observed and measured, and the depths of material to be removed in a sequence of steps is calculated dependent on the measurements of the prevailing surface and the coordinates of the desired finished surface. As a result of the calculations, the depth of material removed during each step is controlled, so that upon carrying out a sequence of such steps, the surface exposed on the object after the last step has been carried out, coincides with the desired finished surface. The accuracy of the material removal equipment may be substantially less than the accuracy of the finished surface. Grooves instead of circular holes are cut when the radius of curvature of both the prevailing and desired surfaces becomes sufficiently small, so as to provide sufficient definition of the desired surface. With the grooves, the observed parameter is groove width rather than hole diameter.
110 Gauging system for machining surfaces US157435 1980-06-09 US4337566A 1982-07-06 Paul DiMatteo; Robert Segnini; Paul Rademacher
An arrangement for removing excess material from an object surface, to provide a desired finished surface. Holes are drilled into the object so that the bottoms of the holes lie on the desired finished surface. The holes have a shape so that the observed hole diameter at the prevailing surface of the object is dependent on the hole depth and thereby dependent on the amount of material remaining to be removed between the prevailing surface and the desired finished surface. The prevailing surface is continuously observed and measured, and the depths of material to be removed in a sequence of steps is calculated dependent on the measurements of the prevailing surface and the coordinates of the desired finished surface. As a result of the calculations, the depth of material removed during each step is controlled, so that upon carrying out a sequence of such steps, the surface exposed on the object after the last step has been carried out, coincides with the desired finished surface. The accuracy of the material removal equipment may be substantially less than the accuracy of the finished surface.
111 Method and apparatus for machining spherical combustion chambers US969164 1978-12-13 US4245939A 1981-01-20 Leonard Sear
A spherically shaped combustion chamber is machined in the cylinder head of an internal combustion engine by revolving one or more cutting tools simultaneously about two axes; one axis being the central axis of the combustion chamber and the other axis being inclined thereto. The tools have a cutting point and a cutting edge extending from the cutting point. The tools are supported so that each cutting point passes through the axis of the combustion chamber, and, when each tool is located in its radially outermost position relative to the axis of the combustion chamber, the cutting edge of the tool cuts an annular surface around the periphery of the spherically shaped portion of the combustion chamber, which, at the bottom face of the cylinder head, corresponds in diameter to that of the cylinder bore.
112 Toroidal surface processing machine US28255172 1972-08-21 US3854379A 1974-12-17 VASS F; HORACEK D
The toroidal surfaces of a constant-velocity ball-coupling half are machined by a pair of milling cutters which are advanced into a workpiece and orbited about respective axes which intersect at 90*. The cutters are withdrawn and the collet holding the workpiece is rotated through 180* about a third axis intersecting the other two axes at 90* and then clamped tightly by a pair of wedging pistons. Each cutter is mounted eccentrically on a cylindrical spindle formed with a toothed sector engaged by a double-acting rack piston which rotates the spindle. Another hydraulic cylinder arrangement is provided parallel to each cylinder with its piston coupled to the respective spindle by a fork so that reciprocation of this piston reciprocates the spindle and cutter.
113 Apparatus for milling large radius curves US3800660D 1973-01-02 US3800660A 1974-04-02 GLADWIN F
Apparatus for milling a large radius curved face on a large metal plate, comprising a horizontally reciprocating table upon which the plate is secured, with a long cross-member extending transversely of the table, and a short slider mounted upon the cross-member for movement transverse of the table, with a rotating milling cutter mounted upon the slider and extending downwardly for milling the face of the plate as it reciprocates beneath the cross-member. Two sets of long tracks are fastened upon and extend along the upper and lower edges of the crossmember, each set having a pair of oppositely curved surfaces vertically aligned with a curved track surface of the other set to form two pair of upper and lower vertically aligned, oppositely curved, i.e., concave and convex surfaces of curvatures corresponding to the curved surface to be formed upon the plate. Corresponding pairs of short, curved surface guide bars are mounted upon the slider, with the bars being transversely movable relative to the slider so as to engage only one pair of vertically aligned track surfaces at a time, whereby the slider is supported for movement along the track surfaces and the slider and cutter may thereby be moved along either a convex or cancave path across the plate for alternatively cutting either a concave or convex face surface upon the reciprocating plate.
114 Apparatus for shaping a pump rotor US7670260 1960-12-19 US3195412A 1965-07-20 PHILLIPS DELBERT L
115 Cutting tool for spherical surfaces US82439959 1959-07-01 US3085476A 1963-04-16 OTTO SLOAN; FRANK SKERBINC
116 Method and machine for generating rotors for elastic fluid mechanism US48063343 1943-03-26 US2431604A 1947-11-25 RUDOLPH BIRMANN
117 Machine for producing convex surfaces US53802444 1944-05-30 US2403168A 1946-07-02 THOMAS BOLAS JOHN; WILLIAM EDWARDS RAYMOND; JOSEPH LATTY WILLIAM
118 Machine tool for manufacturing aircraft wings US53542844 1944-05-13 US2391511A 1945-12-25 PIOCH WILLIAM F; MISTELE JOHN W
119 Control for machine tools US49933043 1943-08-20 US2365558A 1944-12-19 KING GEORGE E; RUTEMILLER OREN G
120 Automatic machine tool control US5787436 1936-01-07 US2092142A 1937-09-07 HANS SCHUZ
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