CN101670583A - Multi-joint synchronous bending mechanical arm based on transmission of connecting rods - Google Patents

Multi-joint synchronous bending mechanical arm based on transmission of connecting rods Download PDF

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Publication number
CN101670583A
CN101670583A CN200910196510A CN200910196510A CN101670583A CN 101670583 A CN101670583 A CN 101670583A CN 200910196510 A CN200910196510 A CN 200910196510A CN 200910196510 A CN200910196510 A CN 200910196510A CN 101670583 A CN101670583 A CN 101670583A
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CN
China
Prior art keywords
connecting rod
hinged
mechanical arm
joint synchronous
synchronous bending
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN200910196510A
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Chinese (zh)
Inventor
陈振华
唐文彬
李素平
陈军
徐解民
徐智武
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University of Shanghai for Science and Technology
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University of Shanghai for Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Shanghai for Science and Technology filed Critical University of Shanghai for Science and Technology
Priority to CN200910196510A priority Critical patent/CN101670583A/en
Publication of CN101670583A publication Critical patent/CN101670583A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a multi-joint synchronous bending mechanical arm based on the transmission of connecting rods, which comprises n connecting rods, wherein n is a natural number except for zero. The multi-joint synchronous bending mechanical arm based on the transmission of the connecting rods is characterized in that the n connecting rods are sequentially connected as follows: the front middle part of each connecting rod and the back middle part of the previous connecting rod are hinged by a fixed point, the back middle part thereof and the front middle part of the posterior connectingrod are hinged by a fixed point, and the back end of the previous connecting rod and the front end of the posterior connecting rod are hinged in a slippage way. The invention is applicable for different places, such as the arms of toy robots, the tails of mechanical monkeys and the like. The invention has simple structure, flexible use, single freedom degree and low price due to adoption of universal parts, can meet different action requirements by different combination and dispenses with a driving source.

Description

Multi-joint synchronous bending mechanical arm based on the connecting rod transmission
Technical field
The present invention relates to a kind of multi-joint synchronous bending mechanical mechanism, particularly a kind of multi-joint synchronous bending mechanical arm based on the connecting rod transmission.
Technical background
Along with the continuous maturation and the development of Robotics, the application of robot not only is confined to industrial circle, and increasing robot is applied to different fields such as anthropomorphic robot, toy robot etc.Mechanical arm is wherein to use wider a kind of frame for movement, but the complex structure of most of mechanical arms, and require to have a plurality of drive sources.And very not high for the free degree requirement of mechanical arm in many occasions, re-use the mechanical arm with multiple degrees of freedom and complex mechanical structure this moment will be lost more than gain.
Summary of the invention
The objective of the invention is to defective, a kind of multi-joint synchronous bending mechanical arm based on the connecting rod transmission is provided at the prior art existence, simple in structure, only need single drive source.
For reaching above-mentioned purpose, design of the present invention is:
The present invention is composed in series by several linkage components, and the quantity of connecting rod can increase and decrease arbitrarily according to different design requirements.Can be by first connecting rod of motor-driven so that rotational angle constantly transmit, the rotational angle of the connecting rod of each joint is all identical, with the required rotational angle of the final acquisition of each rotational angle addition.The present invention has set up a general multi-joint synchronous bending mechanical mechanism based on the connecting rod transmission, can be applicable to different occasions, as the arm of toy robot, tail of machine monkey or the like.It is simple in structure, use is flexible, can satisfy different action requests by different combinations, and is single-degree-of-freedom, has saved drive source, and owing to adopts general purpose accessory to make price and so on cheap.
According to the foregoing invention design, the present invention adopts following technical proposals:
A kind of multi-joint synchronous bending mechanical arm based on the connecting rod transmission, comprise n root connecting rod, n is the natural number except that zero, it is characterized in that described n root connecting rod is successively as lower link: the back middle part fixed point of the front middle part of each root connecting rod and last connecting rod is hinged, thereafter the middle part is hinged with the front middle part fixed point of a back connecting rod, is hinged with slippage between the front end of the rear end of described last connecting rod and a described back connecting rod.
In the above-mentioned mechanical arm, the mechanism that described fixed point is hinged is: determine to rotate connection mutually by pin then by hinge point on two connecting rods that are hinged.
In the above-mentioned mechanical arm, the structure that described slippage is hinged is: in the connecting rod that two butt heads are hinged, the end machining of a connecting rod has become fork head, and a pin is installed, slide block of suit on the pin, and the end machining of another root connecting rod becomes flat bar and described fork head slip inserting, has mounting hole and described slide block to slide on this flat bar and mates.
In the above-mentioned mechanical arm, the identical or mutual difference of the length of described n root connecting rod.
In the above-mentioned mechanical arm, the connection of n root connecting rod can be rotated with different rotation directions, changes and change its rotation direction by initial connecting rod rotation direction, and use flexible period.
The present invention compared with prior art, characteristics and remarkable advantage with following conspicuous outstanding essence: the present invention is simple in structure, used part is identical mostly, only need single drive source just can finish required transmission requirement, use flexibly, can arbitrarily increase and decrease linkage component, change the working range and the driving angle of connecting rod drive disk assembly, and because use is that identical part makes price very cheap mostly.
Description of drawings
Fig. 1 is the overall structure schematic diagram of an example of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is a connecting rod and adjacent two connecting rod johning knot compositions in Fig. 2 example.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the structural representation of a connecting rod in Fig. 1 example.
Fig. 6 is the left view of Fig. 5.
Specific implementation method
A preferred embodiment accompanying drawings of the present invention is as follows;
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, this is based on the multi-joint synchronous bending mechanical arm of connecting rod transmission, comprise n root connecting rod 1,2,3 ... n, n is the natural number except that zero, it is characterized in that described n root connecting rod 1,2,3 ... n is successively as lower link: the back middle part fixed point of the front middle part of each root connecting rod 3 and last connecting rod 2 is hinged, thereafter the middle part is hinged with the front middle part fixed point of a back connecting rod 4, is hinged with slippage between the front end of the rear end of described last connecting rod 2 and a described back connecting rod 4.
The structure that described fixed point is hinged is: determine hinge point on two connecting rods that are hinged, connect by pin 7,8 mutual rotations then.
The structure that described slippage is hinged is: in the connecting rod 2,4 that two butt heads are hinged, the end machining of a connecting rod 2 has become fork head, and a pin 9 is installed, slide block 6 of suit on the pin 9, and the end machining of another root connecting rod 4 becomes flat bar and described fork head slip inserting, has mounting hole and described slide block 6 to slide on this flat bar and mates.
Described n root connecting rod 1,2,3 ... identical or the mutual difference of the length of n.
The connection of n root connecting rod can be rotated with different rotation directions, changes and change its rotation direction by initial connecting rod rotation direction, and use flexible period.
This invention has been set up a general multi-joint synchronous bending mechanical arm based on the connecting rod transmission and has been overcome complex structure, the multi-power source of existing robotic arm and the shortcoming that involves great expense.

Claims (5)

1. multi-joint synchronous bending mechanical arm based on the connecting rod transmission, comprise n root connecting rod (1,2,3 ... n), n is the natural number except that zero, it is characterized in that described n root connecting rod (1,2,3 ... n) successively as lower link: the back middle part fixed point of the front middle part of each root connecting rod (3) and last connecting rod (2) is hinged, thereafter the middle part is hinged with the front middle part fixed point of a back connecting rod (4), is hinged with slippage between the front end of the rear end of described last connecting rod (2) and a described back connecting rod (4).
2. according to claim 1 in the multi-joint synchronous bending mechanical arm of connecting rod transmission, it is characterized in that the structure that described fixed point is hinged is: on two connecting rods that are hinged, determine hinge point, connect by mutual rotation of pin (7,8) then.
3. the multi-joint synchronous bending mechanical arm based on the connecting rod transmission according to claim 1, it is characterized in that the structure that described slippage is hinged is: in the connecting rod (2,4) that two butt heads are hinged, the end machining of a connecting rod (2) has become fork head, and a pin (9) is installed, pin (9) is gone up a slide block of suit (6), and the end machining of another root connecting rod (4) becomes flat bar and described fork head slip inserting, has mounting hole and described slide block (6) to slide on this flat bar and mates.
4. the multi-joint synchronous bending mechanical arm based on the connecting rod transmission according to claim 1 is characterized in that described n root connecting rod (1,2,3 ... n) the identical or mutual difference of length.
5. the multi-joint synchronous bending mechanical arm based on the connecting rod transmission according to claim 1 is characterized in that the connection of n root connecting rod can be rotated with different rotation directions, changes and change its rotation direction by initial connecting rod rotation direction, and use flexible period.
CN200910196510A 2009-09-25 2009-09-25 Multi-joint synchronous bending mechanical arm based on transmission of connecting rods Pending CN101670583A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910196510A CN101670583A (en) 2009-09-25 2009-09-25 Multi-joint synchronous bending mechanical arm based on transmission of connecting rods

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910196510A CN101670583A (en) 2009-09-25 2009-09-25 Multi-joint synchronous bending mechanical arm based on transmission of connecting rods

Publications (1)

Publication Number Publication Date
CN101670583A true CN101670583A (en) 2010-03-17

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Family Applications (1)

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CN200910196510A Pending CN101670583A (en) 2009-09-25 2009-09-25 Multi-joint synchronous bending mechanical arm based on transmission of connecting rods

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101890714A (en) * 2010-06-23 2010-11-24 北京交通大学 Connecting rod moving robot with one degree of freedom and control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101890714A (en) * 2010-06-23 2010-11-24 北京交通大学 Connecting rod moving robot with one degree of freedom and control method thereof
CN101890714B (en) * 2010-06-23 2012-04-25 北京交通大学 Connecting rod moving robot with one degree of freedom and control method thereof

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Open date: 20100317