Constant-pressure constant-linear-velocity polishing method for robot polishing machine

Abstract

The invention discloses a constant-pressure constant-linear-velocity polishing method for a robot polishing machine. The polishing method comprises a double-station hemp wheel polishing component, a cloth wheel polishing component, a robot, a robot control system and a PLC control system, wherein the hemp wheel polishing component comprises a connected hemp wheel, a hemp wheel motor and a hemp wheel frequency converter, and the cloth wheel polishing component comprises a cloth wheel, a cloth wheel motor and a cloth wheel frequency converter. The polishing method disclosed by the invention has the advantages that real-time interaction communication of the robot control system and the PLC control system is completed by adding an Ethernet communication function module and a multitask function plug-in module in the robot control system, and constant-pressure and constant-linear-velocity grinding polishing and polishing can be automatically realized; a robot end effector continuously changes attitude, so that each surface of a workpiece can be uniformly polished; the actual grinding and polishing arc lengths of a hemp wheel and a cloth wheel are increased, so that the polishing method disclosed by the invention is applicable to larger-size workpiece processing.

Description

technical field [0001] The invention relates to a polishing method, which belongs to the technical field of polishing machinery and equipment, in particular to a constant pressure and constant linear velocity polishing method for a robot polishing machine. Background technique [0002] At present, robot polishing machines generally use cloth wheels to complete the polishing process, or combine the grinding, polishing and polishing processes into two-station polishing equipment, use hemp wheels to perform the final grinding and polishing process of workpieces, and then use cloth wheels to complete the polishing process to improve production efficiency. The above-mentioned two kinds of equipment will gradually wear out the linen wheel during the processing process, and its diameter will gradually decrease; at the same time, in order to ensure that the line speed of the linen wheel remains unchanged, the spindle speed will gradually increase, resulting in a gradual increase in t...

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Problems solved by technology

The invention patent cannot measure the radius of the cloth wheel accurately in real time, but relies on the wear experience value of the cloth wheel for workpiece processing and compensates. When changing another workpiece, the empirical compensation value needs to be changed; The moving body increases the amplitude of the cloth wheel, and the uniformity of the surface quality of the polished product is still greatly affected, especially when the attitude of the end effector of the robot is constantly changing, the grinding and polishing point deviates from the horizontal centerline of the cloth wheel and is close to the minimum of the linen wheel It is more difficult to achieve constant pressure polishing under the working condition of diameter

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