Diamond tuned cutting method and equipment for complex optical surfaces of brittle materials

Abstract

The invention discloses a diamond tuning cutting method and diamond tuning cutting equipment for a complex optical surface of a fragile material. The equipment comprises a spindle of a triaxis numerical control machine tool for mounting a workpiece, an X-axis guide rail of the machine tool, two-axle tool servo equipment mounted on the X-axis guide rail of the machine tool and a tool mounted on thetwo-axle tool servo equipment. The two-axle tool servo equipment comprises a piezoelectric stack driver, a flexible guiding mechanism, a capacitive displacement sensor, a substrate and a control system. The method maximizes a material removal rate at any moment under plastic region cutting constraint by self-adaptively adjusting the lateral feeding amount of the tool in any cutting position, so that the cutting efficiency is improved.

Description

technical field

[0001] The invention belongs to the technical field of advanced optical manufacturing, and relates to a method and equipment for diamond tuned cutting of complex optical surfaces of brittle materials. Background technique

[0002] Complex optical surfaces mainly include optical free-form surfaces and microstructure functional surfaces, etc., which can obtain incomparably excellent optical performance of traditional optical components such as spherical and aspheric surfaces, and at the same time have the advantages of small size, light weight, and easy large-scale integration. In recent years, It has attracted much attention in domestic and foreign academia and industry.

[0003] The low fracture toughness of brittle optical materials brings great challenges to the fabrication of complex optical surfaces of brittle materials. Compared with special processing methods such as lithography technology, high-energy particle beam forming, and mechanical processing m...

Examples

Embodiment Construction

[0045] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0046] to combine Figure 1-3 , a diamond-tuned cutting equipment for complex optical surfaces of brittle materials, which improves the efficiency of diamond cutting for complex optical surfaces of brittle materials. The workpiece 3 is installed on the main shaft 2 of a three-axis CNC machine tool and rotates accordingly. Installed on the X-axis guide rail 6 of the machine tool and moving in a straight line at a constant speed; under the dual constraints of plastic domain cutting and surface accuracy, the two-axis tool servo 5 adaptively adjusts the X-axis lateral feed and Z-axis of the tool 4 at any cutting position Axis servo cutting motion to maximize material removal at any cutting position; adaptive lateral feed motion and complex surface creation motion are respectively realized by two-axis tool servo X-axis and Z-axis fast servo motion...

technical field

[0001] The invention belongs to the technical field of advanced optical manufacturing, and relates to a method and equipment for diamond tuned cutting of complex optical surfaces of brittle materials. Background technique

[0002] Complex optical surfaces mainly include optical free-form surfaces and microstructure functional surfaces, etc., which can obtain incomparably excellent optical performance of traditional optical components such as spherical and aspheric surfaces, and at the same time have the advantages of small size, light weight, and easy large-scale integration. In recent years, It has attracted much attention in domestic and foreign academia and industry.

[0003] The low fracture toughness of brittle optical materials brings great challenges to the fabrication of complex optical surfaces of brittle materials. Compared with special processing methods such as lithography technology, high-energy particle beam forming, and mechanical processing m...

Examples

Embodiment Construction

[0045] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0046] to combine Figure 1-3 , a diamond-tuned cutting equipment for complex optical surfaces of brittle materials, which improves the efficiency of diamond cutting for complex optical surfaces of brittle materials. The workpiece 3 is installed on the main shaft 2 of a three-axis CNC machine tool and rotates accordingly. Installed on the X-axis guide rail 6 of the machine tool and moving in a straight line at a constant speed; under the dual constraints of plastic domain cutting and surface accuracy, the two-axis tool servo 5 adaptively adjusts the X-axis lateral feed and Z-axis of the tool 4 at any cutting position Axis servo cutting motion to maximize material removal at any cutting position; adaptive lateral feed motion and complex surface creation motion are respectively realized by two-axis tool servo X-axis and Z-axis fast servo motion...

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