Contact force real-time control system for airbag polishing

Abstract

The invention discloses a contact force real-time control system for airbag polishing. The contact force real-time control system comprises an airbag polishing device, an air source, an air pressure adjusting device and a control system for adjusting the air pressure of an airbag in real time; the airbag polishing device comprises the airbag for polishing and an air chamber communicated with the air source; the airbag is fixed on a retainer which is linked with a motor through a spindle; the spindle is provided with an air channel communicated with the airbag and the air chamber; the air chamber is provided with a pressure sensor for detecting actual air pressure in the air chamber; and the pressure sensor is connected with the control system. The contact force real-time control system adjusts the air pressure in the airbag in real time through the control system, controls the contact force in the polishing process in real time, makes the contact force between the airbag and a workpiece to be polished constant, and is favorable for improving polishing effect and polishing precision.

Description

technical field [0001] The invention relates to a real-time control system of contact force for airbag polishing. Background technique [0002] Airbag polishing technology is a new processing technology proposed by the London Optical Laboratory in the 1990s that can solve the problem of polishing curved surface workpieces. This technology uses a flexible inflatable airbag as a polishing tool. The flexible inflatable airbag is closely attached to the surface of the workpiece under the action of the internal air pressure and the downward pressure of the polishing tool itself, and rotates at a high speed under the drive of the motor, so that the workpiece can be effectively polished. polishing. [0003] During the polishing process, the polishing tool is polished on the surface of the polished workpiece according to a given path. When there is a shape error on the surface of the polished workpiece, a change in the curvature of the surface of the polished workpiece, or machine ...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problem that the polishing contact force cannot be controlled on-line in real time in the existing airbag polishing technology, the present invention provides a method that can make the inflation pressure inside the airbag change in real time following the change of the polishing contact force and the surface curvature of the workpiece. The polishing contact force remains dynamic and stable, which can effectively improve the polishing accuracy and the polishing effect. The real-time control system of the contact force for airbag polishing

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