Self-adaptive pneumatic tong for casting robot

Abstract

The invention discloses a self-adaptive pneumatic tong for a casting robot. The self-adaptive pneumatic tong comprises a connecting support base, a main bracket, an upper clamping device, a lower clamping device and a self-adaptive adjusting connecting rod component, wherein the connecting support base also can be mounted on a tail end flange of a hand part of the casting robot; each upper clamping jaw and lower clamping jaw are independently connected and controlled through the corresponding upper clamping cylinder and lower clamping cylinder; the self-adaptive pneumatic tong can automatically adapt to the outer surface of a grabbed workpiece in the manner of adjusting the radial distance and angle of the upper clamping jaw and lower clamping jaw, so as to realize the effective fitting clamping for the workpiece. The self-adaptive pneumatic tong can meet the grabbing requirements of the casting robot for the workpieces, such as, pouring cups and sand cores, can meet the self-adaptivegrabbing operation requirements for the workpieces of cylindrical and conical frustum shape, has the advantages of simple structure, light weight, high stability, high safety, high adaptability, convenient operation maintenance, and the like, and is capable of reducing the labor intensity and production cost of the operator.

Description

technical field [0001] The invention belongs to the technical field of industrial robot equipment, and in particular relates to an adaptive pneumatic gripper for a casting robot. Background technique [0002] The high flexibility of industrial robots can meet various special requirements in modern green casting production. The use of robots in casting production can not only liberate operators from heavy and monotonous physical labor, save labor, but also improve casting production efficiency, It is an important means of manufacturing precision and quality, and realizing the mechanization, automation and civilization of casting production. Foundry robots can not only be used for handling and conveying of castings in die casting and precision casting production, but also in sand casting molding, core making, core setting, pouring, cleaning and inspection. When the foundry robot performs tasks such as core removal, core assembly, core removal and handling, in addition to the ...

AI Technical Summary

Problems solved by technology

The Chinese patent with the application number 201621329359.4 discloses a small inner support type starting manipulator, including a slider, a guide sleeve, a base, and evenly arranged connecting rods and claws. The telescopic cylinder of the small air cylinder drives the slider and the connecting rod up and down. Move, drive the jaws to tension and relax, but only point contact can be achieved between the three jaws and the workpiece. The contact area between the jaws and the inner surface of the workpiece is too small, which is easy to cause damage to the clamping point of the workpiece, and is not suitable for grasping Sprue cup or hollow sand core components or soft castings

The Chinese patent with the application number 201520758016.9 discloses a manipulator for grasping ring objects, including a grasping mechanism, a grasping movement mechanism and a grasping drive mechanism. The grasping drive mechanism drives multiple grasping claws to make the multiple grasping claws The stretching end rotates outward at the same time and spreads out in the inner ring of the ring-shaped object to grasp the ring-shaped object. The gripping claw and the workpiece are in rigid contact. It is mainly suitable for grabbing wire reels and tires, not suitable for gates. Grabbing of workpieces such as cups and sand cores

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