A Servo Compensated Constant Force Actuator

Abstract

The invention belongs to the technical field of automatic machining, and particularly relates to a servo compensation type constant force executing mechanism. The servo compensation type constant force executing mechanism comprises a base, and a servo force adjusting mechanism, a main constant force output mechanism, auxiliary force adjusting mechanisms, a fixed stroke guiding mechanism, a closed-loop distance measuring and feedback mechanism and two auxiliary force output mechanisms which are arranged on the base, wherein the servo force adjusting mechanism is connected with the main constantforce output mechanism; the main constant force output mechanism is connected with the fixed stroke guiding mechanism; the two auxiliary force output mechanisms are symmetrically arranged on the twosides of the fixed stroke guiding mechanism and are both connected with the fixed stroke guiding mechanism; one auxiliary force adjusting mechanism is arranged on the outer side of each auxiliary force output mechanism; and the closed-loop distance measuring and feedback structure is used for detecting a displacement amount of the main constant force output mechanism in the main thrust output direction and controlling the position interpolation of the servo force adjusting mechanism in time so as to realize full closed-loop position control. Constant force output is provided by mechanical interpolation in a certain stroke, the magnitude of output constant force is servo-controllable, and meanwhile, stable linear force is output by servo follow-up control.

Description

technical field [0001] The invention belongs to the technical field of automatic processing, in particular to a servo compensation type constant force actuator. Background technique [0002] With the widespread application of robots in the field of automated processing, the application of robots in the field of grinding and polishing has also achieved rapid development. In the field of grinding and polishing, the robot is used to replace the traditional manual grinding and polishing of the workpiece. It is mainly used in the grinding of the surface of the workpiece, the deburring of the edges and corners, the grinding of the weld seam, the deburring of the inner cavity and the inner hole, and the processing of the threaded opening of the hole. It is used in bathroom hardware industry, IT industry, auto parts, industrial parts, medical equipment, wood building materials, furniture manufacturing, civil products and other industries. The application of robot grinding has the c...

AI Technical Summary

Problems solved by technology

[0003] At present, the constant force actuator in the grinding and polishing field is generally composed of a low-resistance cylinder, a servo proportional valve, a displacement sensor, an acceleration sensor, and a guide device. Compressed air is used, and the price is very expensive, but it is difficult to achieve compatibility with constant force value setting, adjustable and linear force output functions.

Images