Constant force actuator for installing grinding head

Abstract

The invention relates to a constant force actuator for installing a grinding head. The equipment comprises an actuator support seat, a dual-action low-friction air cylinder, an output end flange, a gap matching type linear bearing, a linear displacement sensor, an electric control system and a universal movable mechanism, wherein the dual-action low-friction air cylinder is arranged in the centerposition of the actuator support seat; a first electric proportional pressure regulating valve and a second electric proportional pressure regulating valve of the electric control system are arrangedat the output end of an air source main control valve in parallel; the output ends of the first electric proportional pressure regulating valve and the output end of the second electric proportional pressure regulating valve are respectively communicated with cavities formed in two sides of a piston of the dual-action low-friction air cylinder; the output end of the piston rod of the air cylinderis connected with an output end flange and can drives the output end flange to axially move; a clearance fit linear bearing is arranged at the outer side of the dual-action low-friction air cylinder;the output end flange and the actuator support seat are connected through the clearance fit linear bearing; the linear displacement sensor is arranged at the side surface of the dual-action low-friction air cylinder; the universal movable mechanism is connected with and arranged at the lower part of the output end flange.

Description

technical field [0001] The invention relates to the technical field of surface grinding of curved surface parts, in particular to a constant force actuator for installing a grinding head. Background technique [0002] In the industrial production process, it is applied to many types of large-scale complex curved surface parts, and these parts need to be polished before spraying. At present, manual grinding is mainly used for grinding, which has serious noise pollution, low efficiency, high labor cost, and unstable grinding quality. It is urgent to solve the problem of automatic grinding. [0003] For example, in the field of aircraft manufacturing technology, the space surface carbon fiber composite aircraft structural parts have the characteristics of thin wall, weak rigidity, no accurate clamping reference, the actual size of the part is inconsistent with the size of the mathematical model, and it is easy to deform after clamping. Grinding removal thickness is less than o...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a constant force actuator for installing a grinding head, which can ensure that the force output by the actuator remains constant, and ensure that the grinding head can adjust the angle of the grinding head according to the curvature of the part surface during the grinding process, so that The sandpaper of the grinding head is in full contact with the surface of the part, which solves the problem that the existing constant force actuator cannot meet the high-quality requirements for the surface grinding of composite parts

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