Method and a device for machining parts and especially optical lenses by means of a model
First Claim
1. Method of machining workpieces, such as optical lenses, comprising performing a plurality of machining operations on a surface of the workpieces, using a single model for each of the machining operations and tracing a surface of the model for forming a corresponding and reversely shaped surface on the workpieces, mounting the model on a first support, mounting the workpiece on a second support, mounting a feeler for tracing the surface of the model on a third support, mounting a member for machining the workpiece on a fourth support, coupling the first support with the fourth support and coupling the second support with the third support separately from the coupling of the first and fourth supports, and rotating the model and the workpiece being machined at synchronous speeds.
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Abstract
In machining parts and especially optical lenses by means of a model, a single model having a shape which is the reverse of that of the part to be obtained is used for all of the various machining operations. In the machining operations, on the one hand, the model is coupled with the tool which machines the part and, on the other hand, the part to be machined is coupled with a feeler which is in contact with the model.
11 Citations
11 Claims
- 1. Method of machining workpieces, such as optical lenses, comprising performing a plurality of machining operations on a surface of the workpieces, using a single model for each of the machining operations and tracing a surface of the model for forming a corresponding and reversely shaped surface on the workpieces, mounting the model on a first support, mounting the workpiece on a second support, mounting a feeler for tracing the surface of the model on a third support, mounting a member for machining the workpiece on a fourth support, coupling the first support with the fourth support and coupling the second support with the third support separately from the coupling of the first and fourth supports, and rotating the model and the workpiece being machined at synchronous speeds.
- 3. Device for machining workpieces, such as optical lenses, comprising a stationary base, a table displaceably mounted on said base for moement relative to said base, a body mounted on said table for movement in a plane perpendicular to the plane of movement of said table, a first support for a model having a surface of revolution to be used in shaping a surface of a workpiece, a second support for the workpiece to be machined, a feeler for placement in contact with the surface of the model to be traced, a third support for said feeler, a tool for machining the surface of said workpiece, a fourth support for said tool, a first spindle for rotating said first support for the model, a second spindle for rotating said second support for the workpiece to be machined, said first and fourth supports fixed to one of said base and said body, said second and third supports fixed to the other one of said base and said body, means for moving said table, means for moving said body, and means for rotating said first and second spindles in synchronism.
Specification