CN-121018352-B - Air supporting device of lens fine grinding burnishing machine

Abstract

The invention relates to an air floatation device of a lens fine grinding polisher, which belongs to the technical field of lens processing equipment and comprises a frame, a fixed disc and a rotary circular arc, wherein the fixed disc is connected with the frame, the fixed disc is coaxially provided with a rotary circular groove, the rotary circular arc is rotatably arranged in the rotary circular groove, the inside of the rotary circular arc is hollow, a polishing dish is arranged in the rotary circular arc, the air floatation device further comprises an external air source, the fixed disc is provided with a plurality of air floatation slots at equal angles around the central axis of the rotary circular groove, two ends of the air floatation slots are respectively communicated with the external air source and the rotary circular groove, when the rotary circular arc rotates relative to the fixed disc, the external air source starts to work at first and blows air towards the air floatation slots, so that an air film is formed between the rotary circular arc and the fixed disc, the friction force between the rotary circular arc and the fixed disc can be reduced, the contact surface between the rotary circular arc and the fixed disc is further protected, the key kinematic pair structure of the device is protected, and the service life of the key kinematic pair of the device is prolonged.

Inventors

• CHEN YONGBING
• LI XUELING

Assignees

• 东莞百业顺自动化设备有限公司

Dates

Publication Date

20260508

Application Date

20251020

Claims (6)

1. 1. The air floatation device of the lens fine grinding polisher is characterized by comprising a frame, a fixed disc and a rotary circular arc, wherein the fixed disc is connected with the frame, the fixed disc is coaxially provided with a rotary circular groove, the rotary circular arc is rotatably arranged in the rotary circular groove, the inside of the rotary circular arc is hollow, and a polishing dish is arranged in the rotary circular arc; The rotary circular groove is characterized by further comprising an external air source, a plurality of air floatation groove holes are formed in the fixed disc around the central axis of the rotary circular groove at equal angles, and two ends of each air floatation groove hole are respectively communicated with the external air source and the rotary circular groove; the lens to be polished is arranged in the rotary arc, the lens is positioned at the top of the polishing dish, and the lens can be locked or released from abutting and attaching relation with the polishing dish; The novel sewage treatment device is characterized by further comprising a waterproof cover with a hollow inside, wherein the top of the waterproof cover is connected with the frame, the bottom of the waterproof cover and the rotary circular arc form a sewage discharge space together, and the lens and the polishing dish are both positioned in the sewage discharge space; The waterproof cover comprises a waterproof hemisphere and a waterproof straight cylinder, wherein the inside of the waterproof hemisphere is hollow, the top and the bottom of the waterproof straight cylinder are respectively connected with the frame and the waterproof hemisphere, the waterproof hemisphere is tangential to the inner side of the rotary arc, and the rotary arc can perform circular arc motion in any direction relative to the waterproof hemisphere; the waterproof hemispherical device further comprises an annular blocking piece, wherein the annular blocking piece is coaxially arranged at the bottom of the waterproof hemispherical body, and the annular blocking piece is obliquely downwards arranged towards the direction of the rotating circular arc; The rotary arc is also provided with a capacity expansion slot hole, the capacity expansion slot hole and the bottom of the waterproof hemisphere form a capacity expansion space with gradually increased gaps from top to bottom, the annular blocking piece is positioned at the bottommost part of the capacity expansion space, and the maximum gap between the annular blocking piece and the rotary arc is not greater than the minimum width of the capacity expansion space.
2. 2. The air floatation device of a lens fine grinding polisher of claim 1 wherein the circular arc of rotation is capable of performing circular motion in any direction relative to the fixed disk.
3. 3. The air flotation device of the lens fine grinding polisher of claim 1 wherein the waterproof cover is provided with a water inlet, the rotary arc is provided with a water outlet, and the water inlet and the water outlet are both communicated with the sewage draining space.
4. 4. The air flotation device of the lens fine grinding polishing machine of claim 1, wherein the fixed disc is provided with an air flotation ring around the central axis of the rotary circular groove, the air flotation ring is communicated with the rotary circular groove, the fixed disc and the rotary circular arc are matched to seal the air flotation ring together to form an air flotation space, and the air flotation space is communicated with the air flotation slot hole.
5. 5. The air floatation device of a lens fine grinding polisher of claim 1 wherein the outer diameter of the waterproof cylinder is smaller than the maximum outer diameter of the waterproof hemisphere.
6. 6. The air flotation device of the lens fine grinding polisher of claim 1 wherein the direction of the clearance path between the annular blocking piece and the circular arc of rotation and the direction of the clearance path between the top of the waterproof hemisphere and the circular arc of rotation are not coincident with each other.

Description

Air supporting device of lens fine grinding burnishing machine Technical Field The invention belongs to the technical field of lens processing, and particularly relates to an air floatation device of a lens fine grinding polisher. Background In the optical lens manufacturing process, the fine grinding procedure bears the dual tasks of correcting the surface shape and controlling the surface roughness of the lens, the technological level directly determines the refractive precision and the scattering inhibition performance of the lens, and the whole performance of the link is dominated by the comprehensive performance of the fine grinding polisher and synchronously mapped to the final processing error and the production efficiency. At present, the main scheme of the fine grinding polishing machine is to make the lens and the grinding tool perform 'circle fit' motion, namely, the grinding disc and the lens are always in surface contact and rotate relatively to each other circumferentially, so that the surface shape accuracy is ensured. However, in order to ensure continuous and reliable motion trail, the key kinematic pair needs to be jointed from surface to limit the equipment to perform reliable circular motion, and the surface-surface sliding friction ensures that the key kinematic pair is in a heavy-load dry grinding state for a long time, friction heat and abrasion are greatly amplified, so that the service life of the key kinematic pair is directly shortened, and the comprehensive reliability and maintenance cost of the equipment are correspondingly deteriorated. Disclosure of Invention In order to solve the problems that the service life of a key kinematic pair is shortened and the comprehensive reliability and maintenance cost of equipment are deteriorated as the key kinematic pair for carrying out circular motion trail of the existing equipment is in a heavy-load dry grinding state for a long time and friction heat and abrasion are greatly amplified, the invention provides an air floatation device of a lens fine grinding and polishing machine. The aim of the invention can be achieved by the following technical scheme: The air floatation device of the lens fine grinding polishing machine comprises a frame, a fixed disc and a rotary circular arc, wherein the fixed disc is connected with the frame, a rotary circular groove is coaxially formed in the fixed disc, the rotary circular arc is rotatably arranged in the rotary circular groove, the inside of the rotary circular arc is hollow, and a polishing dish is arranged in the rotary circular arc; The rotary circular groove is characterized by further comprising an external air source, a plurality of air floatation groove holes are formed in the fixed disc around the central axis of the rotary circular groove at equal angles, and two ends of each air floatation groove hole are respectively communicated with the external air source and the rotary circular groove; the lens to be polished is arranged in the rotary arc, the lens is positioned at the top of the polishing dish, and the lens can be locked or released from abutting and attaching relation with the polishing dish. As a preferred embodiment of the present invention, the rotary arc may perform circular motion in any direction with respect to the fixed disk. As a preferable technical scheme of the invention, the novel sewage treatment device further comprises a waterproof cover with a hollow inside, wherein the top of the waterproof cover is connected with the frame, a sewage discharge space is formed by the bottom of the waterproof cover and the rotary circular arc together, and the lens and the polishing dish are both positioned in the sewage discharge space. As a preferable technical scheme of the invention, the waterproof cover is provided with a water inlet, the rotary arc is provided with a water outlet, and the water inlet and the water outlet are communicated with the sewage draining space. As a preferable technical scheme of the invention, the fixed disk is provided with the air floating ring around the central axis of the rotary circular groove, the air floating ring is communicated with the rotary circular groove, the fixed disk and the rotary circular arc are matched to seal the air floating ring together to form an air floating space, and the air floating space is communicated with the air floating groove hole. As a preferable technical scheme of the invention, the waterproof cover comprises a waterproof hemisphere and a waterproof straight cylinder, wherein the inside of the waterproof hemisphere is hollow, the top and the bottom of the waterproof straight cylinder are respectively connected with the frame and the waterproof hemisphere, the waterproof hemisphere is tangentially arranged with the inner side of the rotary arc, and the rotary arc can perform circular arc motion in any direction relative to the waterproof hemisphere. As a preferable technical scheme of the invention, the oute