Articulated Mechanical Finger

Abstract

The invention discloses a joint type mechanical finger. The mechanical finger comprises a tensioning assembly, a plurality of connecting pieces and a fastening pedestal which are connected through a steel wire rope and a spring, wherein the tensioning assembly comprises a tensioning piece, a tensioning bracket and a tensioning pedestal; the spring sequentially penetrates through the tensioning pedestal, the connecting pieces and the fastening pedestal; two ends of the spring are limited on the tensioning pedestal and the fastening pedestal respectively; the spring can synchronously rotate along with the connecting pieces as a whole; the tensioning and loosening of the steel wire rope among the tensioning assembly, the connecting pieces and the fastening pedestal are adjusted through adjusting the relative positions of the tensioning piece and the connecting pieces. According to the invention, the angle, position and length of the joint type mechanical finger can be adjusted more freely, so that the joint type mechanical fingers can grab a product more flexibly, and are applicable to grabbing of various products. Besides, the joint type mechanical finger is simple in structure, easy to process, and low in processing cost.

Description

technical field [0001] The invention relates to the field of mechanical fingers, in particular to a joint-type mechanical finger with more free and flexible torsion and simple structure. Background technique [0002] In recent years, with the advancement of science and technology and the continuous expansion of automated production scale, manipulators have been widely used in many fields such as home appliance production, automobile manufacturing, medical and health, and military. Complete the grabbing and other actions of the product. [0003] The existing manipulator cannot flexibly twist or bend freely according to the shape characteristics of the product to be grasped, especially for products with irregular shapes such as products with irregular arc surfaces or other types of products. Grabbing, poor versatility and other shortcomings, the applicant submitted a patent application with application number CN201210150724.5 on May 16, 2012, which discloses a mechanical fing...

AI Technical Summary

Problems solved by technology

[0003] The existing manipulator cannot flexibly twist or bend freely according to the shape characteristics of the product to be grasped, especially for products with irregular shapes such as products with irregular arc surfaces or other types of products. Grabbing, poor versatility and other shortcomings, the applicant submitted a patent application with application number CN201210150724.5 on May 16, 2012, which discloses a mechanical finger that can freely adjust its extension position and length , including tensioning and fixing components connected by elastic stretching parts, connecting parts and fixing brackets, elastic stretching parts include springs and steel wires in the springs, both ends of the springs and steel wires are fixed, during use We found that when the connector is twisted, the spring is also twisted, but because the two ends of the spring are fixed, it is difficult for the spring to recover after being twisted. To a large extent, it will affect the direction adjustment between the connecting parts, as well as the tension and relaxation between the connecting parts, affecting the normal use of the mechanical fingers

Moreover, in this patent, the design structures of the tightening and fixing components and the fixing bracket are relatively complicated, which increases the processing difficulty and processing cost of the mechanical fingers.

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