Mechanical arm capable of relatively stably and conveniently grasping spherical part

Abstract

The invention relates to a mechanical arm capable of relatively stably and conveniently grasping a spherical part and belongs to the technical field of mechanical arms. The mechanical arm comprises four vertical rods, four clamping claws, two U-shaped rods and four stepping motors, wherein each of the four clamping claws comprises a front end and a tail end which is fixedly connected with the bottom of the corresponding front end; a bent part is arranged between each front end and the corresponding tail end; a long hole is formed in each tail end; an L-shaped corner claw is fixedly arranged at the head part of each front end; each of the two U-shaped rods comprises two vertical rods and a transverse rod; the bottom ends of the two vertical rods are fixedly connected with the two ends of the corresponding transverse rods respectively; each transverse rod is provided with a screw hole and two vertical rod holes through which the vertical rods can pass; and two vertical rod holes are formed in the two sides of each screw hole. The mechanical arm provided by the invention has the beneficial effects that the stepping motors rotate to drive the vertical rods to do front-back movement respectively so that the clamping claws are driven to be closed or opened. Each clamping claw is independently controlled through the corresponding stepping motor; and the mechanical arm aims at certain spherical parts which have asymmetrical shapes and are difficultly grasped by the common mechanical arm, and can be used for pointedly adjusting an opening degree of each clamping claw, so that accurate grasping is realized.

Description

technical field [0001] The invention relates to a manipulator that is more stable and convenient for grabbing spherical parts, and belongs to the technical field of manipulators. Background technique [0002] It is an automatic operation device that can imitate certain movement functions of human hands and arms, and is used for fixed programs to grasp, carry objects or operate tools. The manipulator is the earliest industrial robot and the earliest modern robot. It can replace the heavy labor of human beings to realize the mechanization and automation of production, and can operate in harmful environments to protect personal safety. Therefore, it is widely used in machinery manufacturing, metallurgy, Departments of electronics, light industry and atomic energy. The manipulators in the prior art are generally designed with mechanical fingers that extend or retract at the same time, and are used to grab some manipulators with relatively symmetrical shapes, and for products th...

AI Technical Summary

Problems solved by technology

The manipulators in the prior art are generally designed with mechanical fingers that extend or retract at the same time, and are used to grab some manipulators with relatively symmetrical shapes, and for products that need to grab some asymmetrical spherical parts in industrial production prone to falling off

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