Servo manipulator

Abstract

The invention discloses a servo manipulator. The servo manipulator comprises a moving piece, a rack is fixedly installed in the middle of the outer surface of one side of the moving piece, and a guide piece is fixedly installed in the position, close to the edge, of the outer surface of the lower end of the rack. A sealing mechanism is arranged, when the manipulator works, oil can conveniently enter a cavity through arrangement of an opening, when the oil with pressure enters the cavity, the pressure of the oil can enable an elastic sleeve to expand in the direction close to the inner surface of a hydraulic cylinder, uniform radial elastic deformation is generated, an abutting plug making contact with the outer surface of the elastic sleeve also moves in the radial direction, thus the clearance amount between the outer surface of the abutting plug and the inner surface of the hydraulic cylinder is reduced, and the purpose of reducing the leakage amount is achieved; meanwhile, the clearance amount between the outer surface of the abutting plug and the inner surface of the hydraulic cylinder is also reduced along with rising of the pressure of the oil, and the problem that the leakage amount is increased due to pressure increase is solved.

Description

technical field [0001] The invention relates to the technical field of manipulators, in particular to a servo manipulator. Background technique [0002] Servo manipulator is an automatic production equipment that can imitate the functions of human limbs and allow it to be automatically controlled, so that it can transport workpieces or manipulate tools for production operations according to predetermined requirements. In the injection molding market, there are all kinds of manipulator products available, and users can choose manipulator products of corresponding specifications according to actual needs. [0003] The Chinese patent discloses a ladle hydraulic cylinder manipulator, the patent application number is CN202021265647.4, which includes a base, a column, a hydraulic cylinder, a connecting rod, a lifting floor, and a lifting guide rod. The lower end of the column is fixedly connected to the base, and the top end is fixedly connected to the transparent cover. , the ro...

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Problems solved by technology

[0004] Although the above comparative patent can realize the multi-degree-of-freedom movement of the manipulator by using multiple hydraulic cylinders, which facilitates the disassembly and assembly of the ladle hydraulic cylinder and improves production efficiency, but the hydraulic cylinder in the above comparative patent is affected by the environment and time. The rubber sealing rings in valves and hydraulic cylinders will undergo aging and qualitative changes, which will lead to serious hydraulic oil leakage and pressure loss, and the maintenance cost is relatively high, and the leakage will increase with the increase of oil pressure. Large, the volumetric efficiency is reduced, and it is difficult to meet the needs of practical applications

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