Object gripping device using electromagnetic assembly

摘要

An object gripping device using a electromagnetic assembly includes a base having two opposite ends thereof, a fastening portion pivoted at one end of the base and having an object-gripping trench and a through opening having a stopping surface therein at two opposite ends of the fastening portion, a transmission portion pivoted at the other end of the base, a stopping shaft extending through both the transmission portion and the through opening, a first spring connected both the base and the fastening portion, a second spring connected both the base and the transmission portion, and a electromagnetic assembly connected the base and the transmission portion.

主权项

1. An object gripping device, comprising:
a base; a fastening portion pivoted at one end of the base, wherein an object-gripping trench is formed at one end of the fastening portion, and a through opening with a stopping surface is formed at another end of the fastening portion; a first spring connected the base and the fastening portion for driving the fastening portion to rotate in a first rotation direction; a transmission portion pivoted at another end of the base; a stopping shaft passing through the transmission portion and the through opening; a second spring connected to the base and the transmission portion for driving the transmission portion to rotate in a second rotation direction opposite to the first rotation direction; and an electromagnetic assembly, comprising:
an outer case fixed on the other end of the base;a displacement piece linearly and movably disposed on the outer case, and connected to the transmission portion; andan electromagnet disposed in the outer case, wherein the displacement piece is magnetically attracted to the electromagnet by a magnetic force thereof so as to stop the transmission portion from rotating in the second rotation direction under the influence of the second spring, the stopping of the rotation of the transmission portion in the second rotation direction causes the stopping shaft to contacts the stopping surface of the through opening, thereby stopping the fastening portion from rotating in the first rotation direction under the influence of the first spring and allowing an object to be fixedly gripped in the object-gripping trench; and wherein according to a trigger signal, the electromagnet reduces the magnetic force attracting the displacement piece thereto, causing the transmission portion to be allowed to rotate in the second rotation direction under the influence of the second spring, thereby causing the stopping shaft to be detached from the stopping surface of the through opening, and allowing the fastening portion to rotate in the first direction under the influence of the first spring to release the object from the object-gripping trench.