Controllable mechanism type movable mechanical arm

Abstract

The invention discloses a controllable mechanism type movable mechanical arm. The lower end of a first rod of the mechanical arm is connected to a work platform. The upper end of the first rod is connected with one end of a second rod. The other end of the second rod is connected to an actuator. The lower end of a first telescopic rod is connected to the work platform. The upper end of the first telescopic rod is connected to a first sliding sleeve. The second rod is sleeved with the first sliding sleeve. The lower end of a third rod is connected to a sliding block which is installed in a sliding groove in the work platform. The upper end of the third rod is connected to a second sliding sleeve. The first rod is sleeved with the second sliding sleeve. One end of a spring is fixed to the work platform, and the other end of the spring is fixed to the first corner of a triangular connecting plate. One end of a second telescopic rod is connected to the second corner of the triangular connecting plate. The other end of the second telescopic rod is connected to the actuator. The third corner of the triangular connecting plate is connected with the first rod and the second rod at the same time. The controllable mechanism type movable mechanical arm has the beneficial effects of large working space, large excavating force, good stress and the like of a traditional hydraulic mechanism, meanwhile, the number of driving rods and controllable motors is reduced, and complexity of a rack transmission system is lowered.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a controllable mechanism-type mobile mechanical arm. Background technique [0002] The traditional series robot has the advantages of simple structure, low cost, and large working space. Relatively speaking, the series robot has low rigidity and cannot be applied to high-speed and large-load occasions; compared with the traditional series robot, the parallel robot has no cumulative error, High precision, compact structure, large bearing capacity, high rigidity and small inertia of the end effector, etc., the driving device can be placed on the fixed platform or close to the fixed platform, so that the moving part is light in weight, high in speed and good in dynamic response. It has the advantages of large working space, high rigidity, strong bearing capacity, small inertia and high precision of the end effector. It can be used in complex operations such as welding, spraying, handling, loa...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a controllable mechanism-type mobile mechanical arm, which overcomes the disadvantages of traditional hydraulic excavators such as high maintenance cost, high operating noise, high cost of hydraulic components, and insufficient response.

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