High-sensitivity flexible grinding device

Abstract

The invention discloses a high-sensitivity flexible grinding device which comprises a mounting seat, a cylinder body, a hollow piston rod, a piston body, a front guide sleeve, a rear guide sleeve, a conical spring, a torque extension rod and a universal bearing. According to the high-sensitivity flexible grinding device provided by the invention, the matching effect between a grinding tool and an industrial robot can be improved, the torque extension rod is arranged in the grinding device, the length of a force arm with a universal bearing as a fulcrum can be increased, and the tail end of the torque extension rod can swing greatly even if the mounting seat is slightly subjected to radial acting force, so that the feedback sensitivity is high; then the conical spring provides reaction to control the torque extension rod to reset quickly, so that a grinding head is well attached to the grinding surface; and meanwhile, when the mounting seat is subjected to axial acting force, the torque extension rod is stressed to stretch the conical spring and correspondingly drive the cylinder body to move backwards to compress air, and the axial acting force is buffered through cooperation of elastic force and air pressure, so that the consistency of the grinding acting force can be well guaranteed, and the grinding and polishing quality is improved.

Description

technical field [0001] The invention relates to the technical field of grinding, in particular to a highly sensitive and flexible grinding device installed between a grinding tool and an industrial robot. Background technique [0002] In manufacturing enterprises, product quality and production efficiency are the main factors to improve the competitiveness of enterprises. In order to improve the competitiveness of enterprises, automated production is gradually replacing manual processing. In the process of improving the degree of automation of enterprise production, industrial robots have played a major role in promoting effect. [0003] In order to improve the grinding efficiency of mass-produced castings, reduce production costs, and avoid the harm of metal dust to grinding workers, for mass-produced castings, industrial robots are usually used with grinding tools instead of manual grinding and polishing of burrs. [0004] The traditional way of using grinding tools and i...

AI Technical Summary

Problems solved by technology

[0004] The traditional way of using grinding tools and industrial robots is mostly rigid connection. The disadvantage of this connection method is that it is affected by the curve profile of the curved surface workpiece, and when the grinding head needs to be replaced, all trajectory points of the industrial robot need to be recalibrated, which is time-consuming. strenuous

In addition, for complex surfaces or corners, when the grinding head cannot be positioned accurately and the original programmed trajectory of the manipulator cannot be adjusted in real time, the grinding head will often appear on the surface of the workpiece in a situation where there are more or less, resulting in grinding in some places. Too much and too little grinding in some places, it is difficult to control the grinding force of the workpiece during the grinding process, which seriously affects the grinding and polishing effect, and the practicability is very poor

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