CN108214458A - Wearable upper limb mechanical arm - Google Patents

Wearable upper limb mechanical arm Download PDF

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Publication number
CN108214458A
CN108214458A CN201711449572.8A CN201711449572A CN108214458A CN 108214458 A CN108214458 A CN 108214458A CN 201711449572 A CN201711449572 A CN 201711449572A CN 108214458 A CN108214458 A CN 108214458A
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CN
China
Prior art keywords
motor
mechanical arm
fixed station
fixed
upper limb
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Granted
Application number
CN201711449572.8A
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Chinese (zh)
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CN108214458B (en
Inventor
袁晓东
牛晰
杨欢欢
岳真
张凯凯
陈周巧
孙雅
耿云霞
陈浩
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Zhengzhou University of Aeronautics
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Zhengzhou University of Aeronautics
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Publication of CN108214458A publication Critical patent/CN108214458A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00Programme-controlled manipulators
    • B25J9/0006Exoskeletons, i.e. resembling a human figure

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  • Engineering & Computer Science (AREA)
  • Robotics (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)
  • Prostheses (AREA)

Abstract

Wearable upper limb mechanical arm, the control device including mechanical device and on mechanical device;Mechanical device is included for the fixed station of wearing, the rear side of fixed station is equipped with dismountable mobile power, the downside of mobile power is pumped equipped with small power, the front side of fixed station is equipped with cross safety belt, one side roof part of fixed station is equipped with the first motor, the main shaft of first motor is set along the front-rear direction of fixed station, horizontal stand is fixed on the main shaft of first motor, the other end of horizontal stand is fixed with rotating disc, rotating disc is equipped with the second motor, and the main shaft of the second motor is set along the left and right directions of fixed station.The present invention provides a kind of wearable upper limb mechanical arm, compared with prior art, by setting the muscular movement of sensor perception user on the robotic arm and acting accordingly, mechanical arm shape is designed in simulation of human body, so that wearer is more comfortable, there is provided lasting electricity output makes mechanical arm running smooth, is restricted range shorter.

Description

Wearable upper limb mechanical arm
Technical field
The invention belongs to human bodies to dress mechanical arm technical field, and in particular to a kind of wearable upper limb mechanical arm.
Background technology
Mechanical arm demand in modern industry, medical treatment and other field increasingly increases, and usually uses the machine of arm of force form Tool arm especially clamps the mechanical arm of article function.But existing mechanical arm configuration cannot well adapt to during clamping article The demand and idea of operator, cause user and mechanical arm coordinate it is not perfect cannot flexibly use, be detached from after fixed power source, Prolonged supply of electric power can not be provided, limit the use scope of activities and usage time of mechanical arm.
In current existing similar-type products, mechanical arm, turning joint hand expanding-contracting action are mainstay, joint There is clamper, but use the muscular movement rule that can not sensitively capture user and using idea, therefore cannot Match with the intention of user.
In the field of medicine, mechanical arm is generally for arm disabled patient.This machinery arm configuration employ more stablize, Reliable design method.This mechanical arm has used more easily operating method in operability, as long as user slightly moves The novel sensor that upper limb is worn on upper limb will directly sense that muscle is small to tremble and move and be translated into instruction Signal is communicated to mechanical arm, makes mechanical arm according to the intention movement of user and clamping article.
Invention content
In view of the above-mentioned drawbacks of the prior art, the present invention provides a kind of wearable upper limb mechanical arm, with existing skill Art is compared, by setting the muscular movement of sensor perception user on the robotic arm and acting accordingly, outside mechanical arm Shape is designed in simulation of human body so that wearer is more comfortable, and providing lasting electricity output makes mechanical arm running smooth, is limited Range shorter processed.
In order to solve the above technical problems, the technical solution adopted in the present invention is as follows:
Wearable upper limb mechanical arm, the control device including mechanical device and on mechanical device;Mechanical device includes using In the fixed station of wearing, the rear side of fixed station is equipped with dismountable mobile power, and the downside of mobile power is pumped equipped with small power, The front side of fixed station is equipped with cross safety belt, and a side roof part of fixed station is equipped with the first motor, and the main shaft edge of the first motor is fixed The front-rear direction of platform is set, and horizontal stand is fixed on the main shaft of the first motor, and the other end of horizontal stand is fixed with rotating disc, Rotating disc is equipped with the second motor, and the main shaft of the second motor is set along the left and right directions of fixed station, solid on the main shaft of the second motor Surely there is overarm brace, the other end of overarm brace is fixed with third motor, preceding arm support is fixed on the main shaft of third motor, preceding The other end of arm support is equipped with manipulator, and driving telescopic rod is equipped between rotating disc and preceding arm support, and preceding arm support is equipped with extremely Few two arm retainer rings;
Control device includes controller, rotary encoder, dsp chip, sensor and actuator, and controller is also electric with movement respectively Source, the first motor, the second motor are connected with third motor.
The imitative human arm contour structures that the contour structures of the overarm brace and preceding arm support are surrounded using semicircle.
The manipulator is bionical the five fingers hand, three refer to handgrip or four finger handgrips.
The mobile power is lithium battery group.
The driving telescopic rod is air pressure telescopic link, hydraulic telescopic rod or electric pushrod.
The sensor includes myoelectric sensor and piezoresistive pressure sensor.
Above-mentioned technical proposal is used, the invention has the advantages that:
Compared with prior art, mechanical arm shape is in bionic design, is adapted with human body so that wearer is more comfortable;Both Fixed power source can be connected by outside line plug to be powered, and can voluntarily be supplied using self-contained lithium battery group Electricity;All support stressed members are made of alloy in lightweight, have many advantages, such as that light-weight, structural strength is high;Pass through setting Myoelectric sensor on the robotic arm perceives the muscular movement of user, is understood by controller and judges and act accordingly, and moves The article of the manipulator clamping constant weight of hand can be passed through when making;Both it can be worn on human body and be perceived by myoelectric sensor Human action simultaneously acts accordingly, and can be used as tradition machinery arm, is fixed on rack or other objects, according to control The action set in device carries out operation;It can be used to sufferer be helped to carry out arm recovery, and people can be used as in terms of medical treatment Body auxiliary mechanical arm after human body puts on the mechanical arm, can carry out some operations beyond human body Lixing, can be with It is fixed in rack as tradition machinery arm, performs pre-set action;In the field of medicine, controller, rotation are compiled Code device, dsp chip, myoelectric sensor, piezoresistive pressure sensor and actuator can not only sense and identify the hand of wearer The action signal that arm transmits performs corresponding action according to the action signal that wearer's arm transmits, can also record and preserve The action signal of the arm of wearer facilitates doctor to understand the concrete condition of wearer's arm, and then is wearer convenient for doctor Make accurate diagnostic and therapeutic method.
Description of the drawings
Fig. 1 is the structure diagram of mechanical arm control system in the present invention;
Fig. 2 is the structure diagram of the aufbauprinciple of mechanical arm in the present invention;
Fig. 3 is the dimensional structure diagram of the present invention;
Fig. 4 is the dimensional structure diagram of apparent direction after the present invention.
Fixed station 1, mobile power 2, cross safety belt 3, the first motor 4, horizontal stand 5, rotating disc 6, the second motor 7, Arm support 8, third motor 9, preceding arm support 10, manipulator 11 drive telescopic rod 12, and small power pump 13, four refer to handgrip 14.
Specific embodiment
The specific embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings:
As Figure 1-Figure 4, wearable upper limb mechanical arm, the control device including mechanical device and on mechanical device; Mechanical device is included for the fixed station 1 of wearing, and the rear side of fixed station 1 is equipped with dismountable mobile power 2, mobile power 2 Downside is equipped with small power and pumps 13, and 13 connection driving telescopic rod 12 of small power pump, the front side of fixed station 1 is equipped with cross safety belt 3, a side roof part of fixed station 1 is equipped with the first motor 4, and the main shaft of the first motor 4 is set along the front-rear direction of fixed station 1, and first Horizontal stand 5 is fixed on the main shaft of motor 4, the other end of horizontal stand 5 is fixed with rotating disc 6, and rotating disc 6 is equipped with second Motor 7, the main shaft of the second motor 7 are set along the left and right directions of fixed station 1, and overarm brace is fixed on the main shaft of the second motor 7 8, the other end of overarm brace 8 is fixed with third motor 9, arm support 10 before being fixed on the main shaft of third motor 9, preceding arm support 10 other end is equipped with manipulator 11, can also manipulator 11 be changed to four finger handgrips 14, rotating disc 6 and forearm as needed Driving telescopic rod 12 is equipped between stent 10, preceding arm support 10 is equipped at least two arm retainer rings, and arm retainer ring is convenient Preceding arm support 10 is fixed with human arm.All support stressed members are made of alloy in lightweight, have light-weight, structure The advantages that intensity is high.
Control device include controller, rotary encoder, dsp chip, sensor and actuator, controller also respectively with shifting Dynamic power supply 2, the first motor 4, the second motor 7 and third motor 9 connect.
The imitative human arm contour structures that the contour structures of overarm brace 8 and preceding arm support 10 are surrounded using semicircle, people Body can ensure the compactness of mechanical arm and arm, guarantor's function effect when dressing.
Manipulator 11 is bionical the five fingers hand, three refer to handgrip or four finger handgrips, is replaced accordingly according to actual demand.
Mobile power 2 be lithium battery group, have it is light-weight, electricity is big, and duration of power supply is long.
It is air pressure telescopic link, hydraulic telescopic rod or electric pushrod to drive telescopic rod 12.
Sensor includes myoelectric sensor and piezoresistive pressure sensor, is separately mounted to the different position of mechanical arm, leads to It crosses dsp chip and transmits signal to controller.
The course of work of the present invention is as follows:
In use, fixed station 1 is worn on human body back, fixed by the cross safety belt 3 of 1 front side of fixed station with human body, the One motor 4 can drive horizontal stand 5 and rotating disc 6 to be acted along the horizontal direction of fixed station 1 when acting, i.e. the press horizontal mobile of mechanical arm To make, the second motor 7 on rotating disc 6 can drive overarm brace 8 to be acted along the front-rear direction of fixed station 1, and the on overarm brace 8 Three motors 9 can drive before arm support 10 acted, i.e., elbow joint act, driving telescopic rod 12 can both strengthen rotating disc 6, on Arm of force output between arm support 8 and preceding arm support 10, and can strengthen between rotating disc 6, overarm brace 8 and preceding arm support 10 Structural strength.
Controller, rotary encoder, dsp chip, myoelectric sensor and actuator in the present invention belong to existing routine Technology, concrete structure are no longer described in detail.
The structure chart of mechanical arm control system, as shown in Figure 1.The pressure of muscle explosive force is measured by myoelectric sensor, Constantly by conditionings such as amplifications, input in DSP, its pressure is extracted and identified in dsp, by BP algorithm etc. to it It is analyzed, finally obtains the classification results of motor pattern.Power (torque) and position are generated in dsp using required motor pattern The control signal put generates control to 3 brshless DC motors of upper limb installation, is passed by rotary encoder, pressure drag type pressure Position that sensor works to upper limb exoskeleton robot, power (torque) signal are acquired in real time, form Dual-loop feedback control formula control System.
Wearable upper limb mechanical arm designed by the present invention uses the assistant mode of PC control slave computer, and host computer was both Controller, the complex function movement two ways that motor pattern includes simple joint self-movement and multi-joint links.Slave computer with Two panels DSP chips are core, and DSP1 controls the horizontal and vertical movement of shoulder joint, and DSP2 then controls shoulder joint rotary motion With the movement of elbow joint.Host computer can carry out the selection of movement power-assisted mode and the setting of joint kinematic parameter, then will be related Parameter sends control chip DSP1, DSP1 to and again sends shoulder joint rotational motion parameter and elbow joint motion parameter to DSP2, after operation, kinematic parameter is converted into motor rotation information by two pieces of control chips, is exported respectively to driving motor and driven Device.Driver uses bipolarity H bridge drive amplification circuits, when designing control system, ensures stability and the user of system Safety is the most important condition.Motor output torque is excessive and upper limb is damaged in order to prevent, will using current detection circuit In the electric current Real-time Feedback to DSP of driver output, once detect that electric current is shut down at once more than permissible value.Using photoelectric coding Device detects motor real time position, avoids the harmful effect caused by articulation is over or under use.
The scope of activities of human arm major joint can be intuitively seen by such as following table one, sets machine on this basis The scope of activities and rotation angle of tool arm, in order to avoid human body use mechanical arm carry out rehabilitation action when in secondary damage occurs Wound.
Compared with prior art, mechanical arm shape is in bionic design so that wearer is more comfortable;Both it can be inserted by outside line Head connection fixed power source is powered, and self-contained lithium battery group can be used to carry out self-powered;By being arranged on machine Myoelectric sensor on tool arm perceives the muscular movement of user, is understood by controller and judges and act accordingly, during action Can by the article of the manipulator clamping constant weight of hand,;Both it can be worn on human body and people is perceived by myoelectric sensor Body is acted and is acted accordingly, and can be used as tradition machinery arm, is fixed on rack or other objects, according to controller The action inside set carries out operation;It can be used to sufferer be helped to carry out arm recovery, and human body can be used as in terms of medical treatment Auxiliary mechanical arm after human body puts on the mechanical arm, can carry out some operations beyond human body Lixing, can also make It is fixed in rack for tradition machinery arm, performs pre-set action;In the field of medicine, controller, rotary coding Device, dsp chip, myoelectric sensor and actuator can not only sense and identify the action signal that the arm of wearer transmits, root Corresponding action is performed according to the action signal that wearer's arm transmits, can also record and preserve the action letter of the arm of wearer Number, doctor is facilitated to understand the concrete condition of wearer's arm, and then accurate diagnostic and therapeutic method is made convenient for doctor.
The present embodiment is every according to this hair not to the limitation of works in any form such as shape, material, the structures of the present invention Any simple modification, equivalent change and modification that bright technical spirit makees above example, belongs to the technology of the present invention side The protection domain of case.

Claims (6)

1. wearable upper limb mechanical arm, it is characterised in that:Control device including mechanical device and on mechanical device;Machine Tool device is included for the fixed station of wearing, and the rear side of fixed station is equipped with dismountable mobile power, is set on the downside of mobile power There is small power pump, the front side of fixed station is equipped with cross safety belt, and a side roof part of fixed station is equipped with the first motor, the first motor Main shaft set along the front-rear direction of fixed station, be fixed with horizontal stand, the other end of horizontal stand on the main shaft of the first motor Rotating disc is fixed with, rotating disc is equipped with the second motor, and the main shaft of the second motor is set along the left and right directions of fixed station, the second electricity Overarm brace is fixed on the main shaft of machine, the other end of overarm brace is fixed with third motor, is fixed on the main shaft of third motor There is preceding arm support, the other end of preceding arm support is equipped with manipulator, and driving telescopic rod, forearm are equipped between rotating disc and preceding arm support Stent is equipped at least two arm retainer rings;
Control device includes controller, rotary encoder, dsp chip, sensor and actuator, and controller is also electric with movement respectively Source, the first motor, the second motor are connected with third motor.
2. wearable upper limb mechanical arm according to claim 1, it is characterised in that:The overarm brace and preceding arm support The imitative human arm contour structures that contour structures are surrounded using semicircle.
3. wearable upper limb mechanical arm according to claim 2, it is characterised in that:The manipulator for bionical the five fingers hand, Three refer to handgrip or four finger handgrips.
4. wearable upper limb mechanical arm according to claim 3, it is characterised in that:The mobile power is lithium battery group.
5. wearable upper limb mechanical arm according to claim 4, it is characterised in that:The driving telescopic rod stretches for air pressure Bar, hydraulic telescopic rod or electric pushrod.
6. wearable upper limb mechanical arm according to claim 5, it is characterised in that:The sensor includes myoelectric sensor And piezoresistive pressure sensor.
CN201711449572.8A 2017-12-27 2017-12-27 Wearable upper limb mechanical arm Active CN108214458B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111650126A (en) * 2020-07-09 2020-09-11 贵州师范大学 Auxiliary mechanical arm device for handheld measurement of ground object spectrometer
CN113332686A (en) * 2020-11-30 2021-09-03 浙江大学 Mechanical arm based on bionics
CN113386107A (en) * 2021-06-21 2021-09-14 杨壬达 Passive mechanical auxiliary limb device
CN114248283A (en) * 2021-12-30 2022-03-29 湖南农业大学 Exoskeleton maintenance robot hand with Bluetooth sensing function
CN114748224A (en) * 2022-04-24 2022-07-15 中国科学院沈阳自动化研究所 Wearable forearm intelligent artificial limb containing elbow joint
CN108214458B (en) * 2017-12-27 2023-09-01 郑州航空工业管理学院 Wearable upper limb mechanical arm

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108214458B (en) * 2017-12-27 2023-09-01 郑州航空工业管理学院 Wearable upper limb mechanical arm
CN111650126A (en) * 2020-07-09 2020-09-11 贵州师范大学 Auxiliary mechanical arm device for handheld measurement of ground object spectrometer
CN113332686A (en) * 2020-11-30 2021-09-03 浙江大学 Mechanical arm based on bionics
CN113386107A (en) * 2021-06-21 2021-09-14 杨壬达 Passive mechanical auxiliary limb device
CN114248283A (en) * 2021-12-30 2022-03-29 湖南农业大学 Exoskeleton maintenance robot hand with Bluetooth sensing function
CN114248283B (en) * 2021-12-30 2024-05-24 湖南农业大学 Exoskeleton maintenance robot with Bluetooth perception function
CN114748224A (en) * 2022-04-24 2022-07-15 中国科学院沈阳自动化研究所 Wearable forearm intelligent artificial limb containing elbow joint

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