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Closed-chain multi-connecting-rod rotary mechanical arm

A rotating machinery and multi-link technology, applied in the field of robotics, can solve the problems of low service life of the mechanical arm, achieve the effect of solving serious wear of the device, improving lubrication efficiency, and facilitating movement and reset

Active Publication Date: 2020-12-01
WEIFANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a closed-chain multi-link rotating mechanical arm with a reasonable structure to solve the problems of stability, reliability and low service life of the mechanical arm

Method used

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  • Closed-chain multi-connecting-rod rotary mechanical arm
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  • Closed-chain multi-connecting-rod rotary mechanical arm

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Embodiment Construction

[0029] In describing the present invention, it is to be understood that the terms "central", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these featu...

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Abstract

The invention discloses a closed-chain multi-connecting-rod rotary mechanical arm. The closed-chain multi-connecting-rod rotary mechanical arm comprises bearings, servo motors, speed reducers, racks,first connecting rods, rotating pins, a second connecting rod, a hollow shaft, a third connecting rod, metal rings, magnetic rings, fixing plates, connecting rods, supporting rings, first springs, hollow blocks, oil conveying pipes, a first connecting pipe, a second connecting pipe, a corrugated cylinder, a fixing rod, a pressing plate and a sliding block. Sliding mode control is implemented through the servo motors, so that the speed reducers drive the first connecting rods to rotate, then the second connecting rod and the third connecting rod are driven to realize displacement change, the pressing plate is driven to rotate to enable a rotating block to rotate around a round rod, the round rod rotates to extrude a reset coil spring, thus the reset coil spring generates steering torsion and restores the normal position to be attached to the corrugated cylinder, the pressing plate is extruded downwards and moves to drive the sliding block to move along a guide rod, and a second spring achieves rapid moving reset of the sliding block and the pressing plate. The defects in the prior art are overcome, the structure is reasonable, and the problems of stability, reliability and short service life of the mechanical arm are effectively solved.

Description

technical field [0001] The invention relates to the technical field of robots, in particular to a closed-chain multi-link rotating mechanical arm. Background technique [0002] The closed-chain manipulator is a parallel-driven manipulator composed of multi-links. Compared with the conventional series manipulator, it has strong rigidity, large load capacity, small cumulative error, large working space, small coupling effect, and low manufacturing cost. Compact structure, easy maintenance and other advantages. [0003] With the rapid development of industrial automation and the advancement of modern control technology, the closed-chain robotic arm has ushered in a huge space for development, and has achieved good applications in machine tools, drilling machines, sorting, cutting and other mechanical equipment. However, there are some defects in the currently used rotating mechanical arm. The lack of an auxiliary fixing mechanism may easily cause the multi-link hollow rotation...

Claims

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Application Information

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IPC IPC(8): B25J18/00B25J19/00B25J9/00
CPCB25J9/0009B25J18/00B25J19/00B25J19/0062
Inventor 刘云龙考永贵王娟申涛林近山王国营
Owner WEIFANG UNIVERSITY
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