Grinding machine for optical glass and associated method of grinding

摘要

This machine includes a base frame (17) and a lens support (19) mounted on the frame (17) with the lens support (19) having elements (29A, 29B) for driving a lens (15) into rotation around a first axis. It includes a tool holder set (21) including a rotary shaft (39) around a second axis (C-C′) and elements (43) for inclining the first axis (A-A′) with respect to the second axis (C-C′). The rotary shaft (39) bears at least two tools (49, 51) for machining the lens, spaced out along the second axis (C-C′), and a spacer (50) positioned in an intermediate area (55) located between both machining tools (49, 51). The spacer (50) defines an outer surface (57) for machining the lens.

主权项

1. A grinding machine for grinding optical glasses, the grinding machine comprising:
a base frame; a lens support mounted on the frame, the lens support comprising means for driving a lens into rotation around a first axis; and a tool holder set including
a rotary shaft disposed around a second axis, the rotary shaft bearing
at least two tools for machining the lens, spaced out along the second axis, anda spacer positioned in an intermediate area located between both machining tools, the spacer defining an outer surface for machining the lens, the outer surface being equipped with gear teeth having at least one cutting edge configured to remove material in the lens, andmeans for inclining the first axis with respect to the second axis.