Robotic planetary polishing unit for polishing of large-diameter aspheric surfaces

A polishing device and aspherical surface technology, which is applied in the direction of grinding/polishing equipment, optical surface grinders, grinding machines, etc., can solve the problems of insufficient pressure control accuracy, limited adjustment range, and low processing efficiency, so as to improve balance performance and increase The effect of controlling precision and improving processing efficiency

Inactive Publication Date: 2015-01-21
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing polishing devices mainly have problems such as low speed due to their own structure, limited adjustment range of eccentricity due to the influence of centrifugal force, insufficient pressure control accuracy, and low processing efficiency.

Method used

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  • Robotic planetary polishing unit for polishing of large-diameter aspheric surfaces
  • Robotic planetary polishing unit for polishing of large-diameter aspheric surfaces
  • Robotic planetary polishing unit for polishing of large-diameter aspheric surfaces

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Embodiment Construction

[0020] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0021] see Figure 1 to Figure 7 , a large-diameter aspheric robot planetary polishing device, comprising a revolution transmission mechanism, an autorotation transmission mechanism, a polishing shaft assembly, and a balance weight eccentric adjustment device.

[0022] The polishing shaft assembly includes a low-friction cylinder 6 and a female rotary ball spline, the female rotary ball spline is provided with a spline shaft 9 and a spline nut 17 slidably connected thereto, the piston of the low-friction cylinder 6 The rod is connected to the spline shaft 9 through a transition joint 20 and a rotary joint 21, the spline shaft 9 is used as a polishing shaft, and the transition joint 20 is affixed to the lower end of the piston rod of the low-f...

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PUM

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Abstract

The invention discloses a robotic planetary polishing unit for polishing of large-diameter aspheric surfaces. The robotic planetary polishing unit comprises a revolution drive mechanism, an autorotation drive mechanism, a polishing shaft component and a counterweight eccentric regulator. Two servo motors drive the robotic planetary polishing unit to autorotate and revolve respectively. The revolution drive mechanism allows horizontal revolution of planetary motion. The counterweight eccentric regulator is an eccentric regulation and synchronous center-of-mass balancing mechanism, allowing a counterweight to reversely synchronously change with an eccentric distance. The autorotation drive mechanism employs two-stage belt drive, allows an auto-rotating motor to be fixed and allows transmission of autorotation motion at the premise of not performing horizontal rotation. The polishing shaft component is in a hollow combination of a low-friction cylinder and a female rotary ball-and-spline shaft, allowing the cylinder and a piston not to perform autorotation motion. The hollow structure allows a dynamic and static polishing process. The pressure of a polishing disc is precisely controlled by a proportional valve through reduction in the friction.

Description

technical field [0001] The invention belongs to the field of optical processing and manufacturing, and relates to a terminal device used in robot polishing. The device is suitable for precision polishing of large-diameter aspheric elements. Background technique [0002] In the practical application of modern optical systems, a large number of aspheric optical components are required, especially those with large aperture and high precision, and the optical manufacturing industry does not yet have enough capacity to meet the demand. Compared with traditional optical processing technology, computer-controlled surface forming technology can greatly improve processing efficiency, which is an important method to solve this problem, so it has become the main technical support for the manufacturing and processing of aspheric optical components. The small grinding head polishing technology is the most widely used CCOS (Computer Controlled Optical Surface Shaping) technology, which ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B13/00
CPCB24B13/00
Inventor 洪鹰贾云凤刘猛猛李政
Owner TIANJIN UNIV
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