摘要:
A bilateral edge-type machine for machining the edges of glass, or stone-like plate materials and the like comprising a supporting frame (1) for a plurality of machining heads (2) arranged on both sides of the plate (4) being machined. Each head (2) comprises a structure (10) associated with a supporting body (11) which is connected to the frame (1). The structure (10) has, on one side, a grinding wheel supporting spindle (20) which is directed upward and, on the other side, an actuation motor (30) which is directed upward. The motor (30) is connected to the spindle (20) by way of a belt drive (31).
摘要:
L'invention se rapporte à un système d'usinage (1) d'un biseau (32, 34) sur une pièce discoïdale (31) comportant un dispositif de meulage (3) comprenant des moyens abrasifs (4), un dispositif de fixation (5) de la pièce (31) comportant un support (13) sur lequel est ajusté ladite pièce et qui est solidaire d'un axe de rotation (16). Selon l'invention, le dispositif de fixation (5) comporte en outre des moyens d'orientation (15) de l'axe (16) de rotation (B) permettant de définir l'angle dudit un biseau (32, 34) et des moyens de rapprochement (17) du support (13) par rapport aux moyens abrasifs (4) afin d'usiner la pièce (13) sous contrainte. L'invention concerne le domaine des glaces pour pièces d'horlogerie.
摘要:
The present invention relates to a method and apparatus for abrading a workpiece. The apparatus includes an abrasive tape (22) having a microstructured surface on the back face thereof, and a support shoe (14) having a microstructured surface on an exposed pressure face (18). The two microstructured surfaces intermesh and resist displacement of the abrasive tape with respect to the pressure face as the workpiece is rotatively abraded.
摘要:
The invention relates in particular to a method for centring grinding of workpieces such as optical lenses by means of a grinding tool using an actuator (34) for generating a relative advancing movement between the grinding tool and the workpiece, wherein the actuator is integrated in a current regulator (48) for an actuator current which determines an advancing force of the actuator in a position control loop (40) which is run through using a predetermined control cycle. In the method, for each control cycle: (i) a desired direction of movement (R soll(n) ) of the advancing movement and an actual direction of movement (R ist(n) ) of the advancing movement are ascertained; then (ii) the ascertained actual and desired directions of movement are compared to one another; and finally, (iii) when the comparison results in a deviation between the actual and desired directions of movement, a predetermined current limit (I Sollmax ) for the actuator current emitted via the current regulator is decreased in a defined manner in order to reduce the advancing force of the actuator. As a result the advancing movement and material machining can be carried out quickly and efficiently without overstressing the tool or workpiece.
摘要:
A bilateral edge-type machine for machining the edges of glass, or stone-like plate materials and the like comprising a supporting frame (1) for a plurality of machining heads (2) arranged on both sides of the plate (4) being machined. Each head (2) comprises a structure (10) associated with a supporting body (11) which is connected to the frame (1). The structure (10) has, on one side, a grinding wheel supporting spindle (20) which is directed upward and, on the other side, an actuation motor (30) which is directed upward. The motor (30) is connected to the spindle (20) by way of a belt drive (31).