An automatic coaxial centering gripper

Abstract

The utility model discloses an automatic coaxial centering holder, including cylinder, locking nut and core body, the top of cylinder is provided with the connecting body that extends upwards, is provided with the second inner taper surface of big down small in the connecting body, is provided with the first inner taper surface of small down big in locking nut, the core body is elastic revolving body, the upper portion outside of core body is provided with the first outer taper surface of small down big, the lower portion outside of core body is provided with the second outer taper surface of big down small, and the core body is provided with the through hole of variable diameter of upper and lower ends, locking nut is screwed in the top outside of connecting body and forms the installation cavity in the inside of both, and the core body is installed in the installation cavity, and the first outer taper surface is attached with the first inner taper surface, and the second outer taper surface is attached with the second inner taper surface. The technical effect that obtains is: in the process of screwing locking nut, each inner and outer taper surface interacts, makes the diameter of the variable diameter hole of core body small, thereby utilizes the core body and holds the end of mechanical arm tightly, not only can realize the quick installation with mechanical arm, but also can guarantee the high accuracy coaxial requirement of holder and mechanical arm.

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