Abstract:
The invention relates to a device for measuring a former in a CNC eyeglass frame grinding machine, comprising a computer to control said machine, at least one grinding disc in a grinding chamber, an eyeglass retaining shaft that can be rotated in a codeable angular position and which can be radially and axially adjusted in relation to the grinding disc and locked, an angle sensor to detect the swing angle ( rho n) of the eyeglass retaining shaft, a perpendicular holding device for a former, said device being located on the end coming out of the grinding chamber, and a touch sensor located on the former which can be displaced radially in relation to the eyeglass retaining shaft and which has a displacement sensor to detect the radius values (rn) of the former.
Abstract:
Mittels eines programmgesteuerten Handhabungsgeräts (12) wird ein Probe-Werkstück (22) zum Schleifen mittels einer Bandschleifmaschine (14) entlang einer programmierten Bewegungsbahn (24) bewegt. Dabei wird die auf die Kontaktrolle (32) einwirkende Kraft (F) sowie die Position (P) des Stellantriebs (38) kontinuierlich erfasst und im Kontroller (28) gespeichert. Aufgrund dieser Daten wird ermittelt, wann das Probe-Werkstück (22) und das Schleifband (30) einander berühren und wann nicht. Beim nachfolgend serienmässigen Schleifen der Werkstücke (22) wird in den Abschnitten, in welchen beim Schleifen des Probe-Werkstücks eine Berührung stattfand, der Stellantrieb (38) kraftgeregelt und jenen Abschnitten, in welchen keine Berührung stattfand, positionsgeregelt.
Abstract:
A machine for abrading or polishing a workpiece (5) comprises a holding surface holding the workpiece, a head member (7) arranged along a rotation axis to rotate about the rotation axis, a working member (8) having a surface for abrading or polishing the workpiece (5) arranged on the head member on the rotational axis (h) for rotation about the rotation axis with the head member, a first driving arrangement for driving a head member and the working member mounted thereon to rotate about the rotation axis, a head mounting arrangement for mounting the head member, a second driving arrangement (700) for driving the head mounting arrangement to incline the rotation axis of the head member relative to a precession axis intersecting the rotation axis, and for moving the head member to inclined positions with the rotation axis precessed about the precession axis, and a third driving arrangement (800) for relatively moving the head mounting arrangement across the holding surface.
Abstract:
A machine for abrading or polishing a workpiece (5) comprises a holding surface holding the workpiece, a head member (7) arranged along a rotation axis to rotate about the rotation axis, a working member (8) having a surface for abrading or polishing the workpiece (5) arranged on the head member on the rotational axis (h) for rotation about the rotation axis with the head member, a first driving arrangement for driving a head member and the working member mounted thereon to rotate about the rotation axis, a head mounting arrangement for mounting the head member, a second driving arrangement (700) for driving the head mounting arrangement to incline the rotation axis of the head member relative to a precession axis intersecting the rotation axis, and for moving the head member to inclined positions with the rotation axis precessed about the precession axis, and a third driving arrangement (800) for relatively moving the head mounting arrangement across the holding surface.
Abstract:
A wave bevelling machine is disclosed which produces a wave bevel on a glass work piece. The machine includes a feed path that is adapted to receive a glass work piece and which includes a plurality of spaced-apart treatment heads adjacent the feed path and adapted to sequentially engage the edge region of the work piece as the work piece is moved along the feed path. Each of the plurality of heads includes at least one contact region adapted to contact the edge region of the work piece, and one or more of the heads is adapted to abrade glass from the edge region when in contact with the edge region. The machine further includes a treatment head positioning system adapted to cause the contact surfaces of the plurality of heads and the edge region of the work piece to be engaged and cyclically moved in an oscillating path with respect to each other to produce the wave bevel on the edge region. The machine may further include one or more conveyors that support and move the work piece along the feed path. Furthermore the heads may be mounted on a single carriage, on which they move or are engaged as a unit, or may be independently mounted, wherein they may each be controlled and positioned by the treatment head positioning system independent of the rest of the plurality of heads.
Abstract:
Le procédé comporte les étapes suivantes : acquisition d'une dimension axiale d'un cercle (13,14) de la monture (10) ou d'une dimension axiale d'un drageoir (11) de ce cercle; comparaison de cette dimension axiale du cercle ou de cette dimension axiale du drageoir avec une valeur seuil prédéterminée; détermination du matériau de la monture en fonction de cette comparaison.
Abstract:
A pre-cutter or edger machine for processing the periphery of an optic is provided. The pre-cutter or edger machine of the present invention is adventageous in that it provides a machine that eliminates the need to mount the optic on a block, is completely automatic, and has a cycle time of approximately 10 seconds. The machine also is capable of pre-cutting or edging an optic to any of a number of different diameters of shapes with or without the need for traced data. The machine cleans the optic automatically and maintains the edge processing stations substantially free from debris.
Abstract:
The invention relates to a method for grinding a rolled metal band (6). The aim of the invention is to improve the grinding process. To this end, the abrasion of the metal band (6) is influenced by means of actuators. At least one actuator is adjusted according to output variables of a grinding process model (1). During the establishment and development of the grinding process model (1), the varying system parameters, i.e. the incidence pressure of the backpressure rollers (8, 16, 17, 18, 19, 20) or the grinding force, the engine performance of the actuating devices (7) of the grinding booths (10, 11, 12, 13, 14, 15) and the running speed of the grinding belts (5) of the grinding booths (10, 11, 12, 13, 14, 15) and the rate of feed of the metal band (6) to be ground, are successively recorded.
Abstract:
A CNC tool grinding machine has at least one rotatable grinding wheel (1) movable relative to a workpiece (2) for grinding a flute surface (3) of a blade in the workpiece (2). The machine is programmed with a path for the grinding wheel (1) calculated to grind a smooth cutting edge (5) for the blade, and programmed with perturbations to the path which vary the movement of the grinding wheel (1) to grind a wavy cutting edge (6) in the workpiece. With such a machine, it is possible to grind all surfaces of a wavy cutting edge in a single set up rather than requiring two or more grinding and milling operations to form the wavy cutting edge.