CN107289887A - A kind of glove-type articulated arm coordinate measuring machine and its measuring method - Google Patents

A kind of glove-type articulated arm coordinate measuring machine and its measuring method Download PDF

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Publication number
CN107289887A
CN107289887A CN201710550704.XA CN201710550704A CN107289887A CN 107289887 A CN107289887 A CN 107289887A CN 201710550704 A CN201710550704 A CN 201710550704A CN 107289887 A CN107289887 A CN 107289887A
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CN
China
Prior art keywords
joint
finger
pressure sensor
arm
palm cover
Prior art date
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
CN201710550704.XA
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Chinese (zh)
Inventor
王文
程海宾
卢科青
时光
翁新
翁一新
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Hangzhou Dianzi University
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Hangzhou Dianzi University
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Filing date
Publication date
Application filed by Hangzhou Dianzi University filed Critical Hangzhou Dianzi University
Priority to CN201710550704.XA priority Critical patent/CN107289887A/en
Publication of CN107289887A publication Critical patent/CN107289887A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/04Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points

Abstract

The invention discloses a kind of glove-type articulated arm coordinate measuring machine and its measuring method.The existing articulated arm coordinate measuring machine for installing touch trigger probe is once only surveyed a bit, and efficiency is low, operation inconvenience.The present invention includes pedestal, the first joint, second joint, the 3rd joint, the 4th joint, the first joint arm, second joint arm, the 3rd joint arm and gauge head;Gauge head includes palm cover and five finger-stalls;Angular encoder is equipped with inside first joint, second joint, the 3rd joint, finger middle joint and finger root joint;That side outer wall is provided with the same side for being located at the first array pressure sensor on the first array pressure sensor, finger-stall provided with the second array pressure sensor to palm cover inwardly;4th IA motion azimuthal measurement apparatus and all angular encoders are by angular signal input signal acquisition system, and all pressure sensor contacts are by pressure signal input signal acquisition system.The present invention may be worn on hand, can once survey multiple points, easy to operate.

Description

A kind of glove-type articulated arm coordinate measuring machine and its measuring method
Technical field
The invention belongs to field of measuring technique, it is related to articulated arm coordinate measuring machine, and in particular to a kind of measurement end is similar to The articulated arm coordinate measuring machine and its measuring method of human palm.
Background technology
All there is the high precision position measurement to object table millet cake and the height of article geometrical size in many technical fields The demand of precision measure.Especially for industry is manufactured, the measurement and quality control of product are extremely important.
On these fields, exist and be much applied to measurement apparatus formed by these situations, these measurement apparatus are usual Referred to as coordinate measuring machine (CMM).Wherein articulated arm coordinate measuring machine is a kind of nonopiate coordinate-measuring instrument of multiple degrees of freedom, generally With 6 frees degree.It with tandem-in-space structure, thus has compared with traditional orthogonal coordinate system formula three coordinate measuring machine The free degree is big, measurement space is open, operate relatively flexible and suitable in-site measurement the features such as.
However, the existing articulated arm coordinate measuring machine for installing touch trigger probe can only disposably measure a point, Even very simple geometric object, it is desirable to measure its physical dimension and must also divide and measure many times, waste time and energy, It is less efficient.Moreover, although existing articulated arm coordinate measuring machine is that the arm design for copying people comes out, but is made It not is very convenient, it is necessary to which operator's both hands help joint arm to find carries out data again behind suitable position that used time, which operates, Record, this also cause articulated arm coordinate measuring machine measure when spend the time increase, measurement efficiency reduction.
The content of the invention
, should it is an object of the invention to provide the articulated arm coordinate measuring machine and its measuring method that a kind of gauge head is similar to human hand Gauge head can be worn on hand as gloves, so that one can only disposably be measured by solving existing articulated arm coordinate measuring machine Individual coordinate points, and the problem of inconvenient operation.
In order to solve the above problems, the technical solution adopted by the present invention is:
A kind of glove-type articulated arm coordinate measuring machine of the present invention, including pedestal, the first joint, second joint, the 3rd joint, 4th joint, the first joint arm, second joint arm, the 3rd joint arm and gauge head;First joint arm passes through the first joint with pedestal Connection, the rotating shaft in the first joint is vertically arranged;The rear end of second joint arm and the front end of the first joint arm are connected by second joint Connect, the front end of second joint arm is connected with the rear end of the 3rd joint arm by the 3rd joint, turn in second joint and the 3rd joint Axle level and it be arranged in parallel;Described the first joint, second joint and the 3rd intra articular is equipped with the angle of measurement joint rotation angle Spend encoder.
Described gauge head includes palm cover and five finger-stalls;Palm cover rear portion fixed connecting rod, connecting rod is closed with the 3rd The front end of joint arm is connected by the 4th joint;4th joint is spherical hinge chain type joint, built in motion azimuthal measurement apparatus;Five Four finger-stalls sequentially arranged in finger-stall include three loop bars, and another finger-stall includes two loop bars;Same hand Adjacent two loop bars are connected by finger middle joint on fingerstall;The loop bar that every finger-stall is located at root is anterior with palm cover Connected by finger root joint;Connected inside all loop bars on same finger-stall, and positioned at the loop bar and palm of root Set is internal to be connected;That side outer wall of palm cover inwardly is plane, and the rotating shaft of finger middle joint and finger root joint is parallel In palm cover plane where that side outer wall, and the rotating shaft of finger middle joint and finger root joint is rectangular with loop bar bar inwardly To vertical;Finger root joint on five finger-stalls is arranged along camber line;Inside finger middle joint and finger root joint Provided with for measuring the angular encoder of joint rotation angle.That side outer wall is provided with the first array pressure sensor to palm cover inwardly, Each row and each row include multiple pressure sensor contacts in first array pressure sensor;It is located at the first array on finger-stall The same side of formula pressure sensor is provided with each row and each row in the second array pressure sensor, the second array pressure sensor Include multiple pressure sensor contacts;Each pressure sensor contact is composed of different numberings.4th IA motion orientation Measurement apparatus and all angular encoders are by angular signal input signal acquisition system, and all pressure sensor contacts believe pressure Number input signal acquisition system.
Each row and each row pressure sensor contact number are equal in the first described array pressure sensor, be 10~ 12.
Each row pressure sensor contact number is equal in the second described array pressure sensor, is 2~4;The Each row pressure sensor contact number is equal in two array pressure sensors, is 15~20;Finger middle joint or hand Refer to the row place direction of the rotating shaft of root joint axially for the second array pressure sensor.
The measuring method of the glove-type articulated arm coordinate measuring machine is specific as follows:
Step 1: pedestal is fixed on around object, object is set to be in measured zone, human hand is inserted in palm cover and five Finger-stall.
Step 2: on people's hand-motion palm cover and five finger-stall touching object, palm cover and five finger-stalls with object Pressure signal is transmitted to signal acquiring system by each pressure sensor contact of contact, and signal acquiring system identification touches object Pressure sensor contact is numbered, and the pressure sensor contact for touching object that computer is transmitted according to signal acquiring system is compiled Number, each angular encoder and the 4th IA motion the azimuthal measurement apparatus angular signal, the pedestal origin and initial that transmit The first joint arm, second joint arm and the 3rd joint arm lengths of design, each pressure sensor contact are numbered corresponding pressure and passed Position of the sensor contact on palm cover or finger-stall, calculates each pressure sensor contact contacted with object in origin Space coordinate in system, and then calculate the physical dimension of object.
Step 3: repeat step two, until measure object measurement in need physical dimension.
The beneficial effects of the invention are as follows:
1st, the present invention can be while the coordinate of the multiple points of measurement space, compared with existing articulated arm coordinate measuring machine, be surveyed The amount time greatly shortens, and improves the efficiency of measurement.
2nd, probe part of the invention is similar to human hand and wearable so that articulated arm coordinate measuring machine can be according to operation The freely activity of the arm of person, it is simple to operate and only need to one-handed performance.
3rd, the present invention is according to pressure sensor contact numbering, each angular encoder and the 4th intra-articular fortune for touching object The first joint arm, the second joint arm and of angular signal, pedestal origin and initial designs that dynamic azimuthal measurement apparatus is transmitted Three joint arm lengths, each pressure sensor contact number position of the corresponding pressure sensor contact on palm cover or finger-stall Put, calculate space coordinate of the measurement point in origin system, and then calculate the physical dimension of object, it is ensured that the standard of measurement True property.
Brief description of the drawings
Fig. 1 is glove-type articulated arm coordinate measuring machine structural representation.
Fig. 2 is glove-type articulated arm coordinate measuring machine probe part structural representation.
In figure:1- pedestals, the joint arms of 2- first, 3- second joints, 4- second joint arms, the joints of 5- the 3rd, 6- the 3rd is closed Joint arm, the joints of 7- the 4th, 8- gauge heads, the joints of 9- first.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of glove-type articulated arm coordinate measuring machine, including pedestal 1, the first joint 9, second joint 3, Three joints 5, the 4th joint 7, the first joint arm 2, second joint arm 4, the 3rd joint arm 6 and gauge head 8.First joint arm 2 and base Seat 1 is connected by the first joint 9, and the rotating shaft in the first joint 9 is vertically arranged;The rear end of second joint arm 4 and the first joint arm 2 Front end is connected by second joint 3, and the front end of second joint arm 4 is connected with the rear end of the 3rd joint arm 6 by the 3rd joint 5, The rotating shaft level in the joint 5 of second joint 3 and the 3rd and it be arranged in parallel;First joint 9, second joint 3 and the inside of the 3rd joint 5 are Provided with for measuring the angular encoder of articulation angle.
As shown in Fig. 2 gauge head 8 includes palm cover and five finger-stalls;Palm cover rear portion fixed connecting rod, connecting rod and the The front end of three joint arms 6 is connected by the 4th joint 7;4th joint 7 is spherical hinge chain type joint, built in motion azimuthal measurement dress Put, motion azimuthal measurement apparatus uses the technology of prior art, such as Patent No. 201420387364.5;It is suitable in five finger-stalls Four finger-stalls of sequence arrangement include three loop bars, and another finger-stall includes two loop bars;It is adjacent on same finger-stall Two loop bars are connected by finger middle joint;The loop bar that every finger-stall is located at root passes through finger root with palm cover front portion Portion joint is connected;Connected inside all loop bars on same finger-stall, and the loop bar positioned at root inside palm cover with connecting; That side outer wall of palm cover inwardly is plane, the rotating shaft of finger middle joint and finger root joint each parallel to palm cover inwardly Plane where that side outer wall, and the rotating shaft of finger middle joint and finger root joint is vertical with loop bar bar length direction;Five Finger root joint on finger-stall is arranged along camber line;It is equipped with inside finger middle joint and finger root joint for measuring The angular encoder of articulation angle.That side outer wall is provided with the first array pressure sensor, the first array to palm cover inwardly Each row and each row pressure sensor contact number are equal in formula pressure sensor, are 10~12;It is located at first on finger-stall The same side of array pressure sensor is provided with each row pressure in the second array pressure sensor, the second array pressure sensor Force snesor contact number is equal, is 2~4;Each row pressure sensor contact number in second array pressure sensor It is equal, it is 15~20;The rotating shaft of finger middle joint or finger root joint is axially the second array pressure sensor Row where direction;Each pressure sensor contact is composed of different numberings.Motion azimuthal measurement apparatus and institute in 4th joint 7 Angled encoder adopts pressure signal input signal angular signal input signal acquisition system, all pressure sensor contacts Collecting system.
The measuring method of the glove-type articulated arm coordinate measuring machine is specific as follows:
Step 1: pedestal 1 is fixed on around object, object is set to be in measured zone, human hand is inserted in palm cover and five Root finger-stall.
Step 2: on people's hand-motion palm cover and five finger-stall touching object, palm cover and five finger-stalls with object Pressure signal is transmitted to signal acquiring system by each pressure sensor contact of contact, and signal acquiring system identification touches object Pressure sensor contact is numbered, and the pressure sensor contact for touching object that computer is transmitted according to signal acquiring system is compiled Number, the motion azimuthal measurement apparatus in each angular encoder and the 4th joint 7 angular signal, the pedestal origin and initial that transmit The first joint arm 2, second joint arm 4 and the length of the 3rd joint arm 6 of design, each pressure sensor contact number corresponding pressure Position of the sensor contact on palm cover or finger-stall, calculates each pressure sensor contact contacted with object and is sat in origin Space coordinate in mark system, and then calculate the physical dimension of object.
Step 3: repeat step two, until measure object measurement in need physical dimension.
The present invention is designed according to bionics principle, and structure is similar with the palm of people.When operator digital flexion or When stretching, the finger-stall on gauge head makees identical motion also with operator.When the arm of operator is moved in space, joint Arm is also moved therewith, is consistent the palm of gauge head and operator.

Claims (4)

1. a kind of glove-type articulated arm coordinate measuring machine, including pedestal, the first joint, second joint, the 3rd joint, the 4th pass Section, the first joint arm, second joint arm, the 3rd joint arm and gauge head;First joint arm is connected with pedestal by the first joint, the The rotating shaft in one joint is vertically arranged;The rear end of second joint arm is connected with the front end of the first joint arm by second joint, and second The front end of joint arm is connected with the rear end of the 3rd joint arm by the 3rd joint, the rotating shaft level in second joint and the 3rd joint and It is arranged in parallel;It is characterized in that:Described the first joint, second joint and the 3rd intra articular is equipped with measurement joint rotation angle Angular encoder;
Described gauge head includes palm cover and five finger-stalls;Palm cover rear portion fixed connecting rod, connecting rod and the 3rd joint arm Front end connected by the 4th joint;4th joint is spherical hinge chain type joint, built in motion azimuthal measurement apparatus;Five fingers Four finger-stalls sequentially arranged in set include three loop bars, and another finger-stall includes two loop bars;Same finger-stall Upper adjacent two loop bars are connected by finger middle joint;The loop bar that every finger-stall is located at root passes through with palm cover front portion Finger root joint is connected;Connected inside all loop bars on same finger-stall, and in the loop bar and palm cover of root Portion is connected;That side outer wall of palm cover inwardly is plane, and the rotating shaft of finger middle joint and finger root joint is each parallel to hand Palm set plane where that side outer wall, and the rotating shaft of finger middle joint and finger root joint is vertical with loop bar bar length direction inwardly Directly;Finger root joint on five finger-stalls is arranged along camber line;It is equipped with inside finger middle joint and finger root joint For measuring the angular encoder of joint rotation angle;That side outer wall is provided with the first array pressure sensor, first to palm cover inwardly Each row and each row include multiple pressure sensor contacts in array pressure sensor;It is located at the first array pressure on finger-stall The same side of force snesor is provided with each row and each row in the second array pressure sensor, the second array pressure sensor and wrapped Include multiple pressure sensor contacts;Each pressure sensor contact is composed of different numberings;4th IA motion azimuthal measurement Device and all angular encoders are by angular signal input signal acquisition system, and all pressure sensor contacts pass pressure signal Enter signal acquiring system.
2. a kind of glove-type articulated arm coordinate measuring machine according to claim 1, it is characterised in that:The first described array Each row and each row pressure sensor contact number are equal in formula pressure sensor, are 10~12.
3. a kind of glove-type articulated arm coordinate measuring machine according to claim 1, it is characterised in that:The second described array Each row pressure sensor contact number is equal in formula pressure sensor, is 2~4;It is each in second array pressure sensor Row pressure sensor contact number is equal, is 15~20;The rotating shaft of finger middle joint or finger root joint is axially Direction where the row of second array pressure sensor.
4. a kind of measuring method of glove-type articulated arm coordinate measuring machine according to claim 1, it is characterised in that:The party Method is specific as follows:
Step 1: pedestal is fixed on around object, object is set to be in measured zone, human hand is inserted in palm cover and five fingers Set;
Step 2: being contacted on people's hand-motion palm cover and five finger-stall touching object, palm cover and five finger-stalls with object Each pressure sensor contact pressure signal is transmitted to signal acquiring system, signal acquiring system recognizes the pressure for touching object Sensor contact is numbered, and the pressure sensor contact for touching object that computer is transmitted according to signal acquiring system is numbered, respectively Angular signal, pedestal origin and the initial designs that angular encoder and the 4th IA motion azimuthal measurement apparatus are transmitted First joint arm, second joint arm and the 3rd joint arm lengths, each pressure sensor contact are numbered corresponding pressure sensor and touched Position of the head on palm cover or finger-stall, calculates each pressure sensor contact contacted with object in origin system Space coordinate, and then calculate the physical dimension of object;
Step 3: repeat step two, until measure object measurement in need physical dimension.
CN201710550704.XA 2017-07-07 2017-07-07 A kind of glove-type articulated arm coordinate measuring machine and its measuring method Pending CN107289887A (en)

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Application Number Priority Date Filing Date Title
CN201710550704.XA CN107289887A (en) 2017-07-07 2017-07-07 A kind of glove-type articulated arm coordinate measuring machine and its measuring method

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Citations (5)

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Publication number Priority date Publication date Assignee Title
JPH10264072A (en) * 1997-03-28 1998-10-06 Yaskawa Electric Corp Clamping object measuring device
JP2009064053A (en) * 2007-09-04 2009-03-26 Citizen Holdings Co Ltd Operation input device
CN102363301A (en) * 2011-10-19 2012-02-29 浙江工业大学 Method for adaptively tracking and controlling fingertip force of robot anthropomorphic finger
CN105159459A (en) * 2015-09-06 2015-12-16 东南大学 Virtual object three-dimensional shape tactile representation method capable of being used for mobile terminal
CN106502412A (en) * 2016-10-28 2017-03-15 广州初曲科技有限公司 The shape tactile exoskeleton manipulator set that a kind of multiple degrees of freedom identification maneuver is followed the trail of

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10264072A (en) * 1997-03-28 1998-10-06 Yaskawa Electric Corp Clamping object measuring device
JP2009064053A (en) * 2007-09-04 2009-03-26 Citizen Holdings Co Ltd Operation input device
CN102363301A (en) * 2011-10-19 2012-02-29 浙江工业大学 Method for adaptively tracking and controlling fingertip force of robot anthropomorphic finger
CN105159459A (en) * 2015-09-06 2015-12-16 东南大学 Virtual object three-dimensional shape tactile representation method capable of being used for mobile terminal
CN106502412A (en) * 2016-10-28 2017-03-15 广州初曲科技有限公司 The shape tactile exoskeleton manipulator set that a kind of multiple degrees of freedom identification maneuver is followed the trail of

Non-Patent Citations (1)

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Title
王玉洁等: "《虚拟现实技术在农业中的应用》", 中国农业出版社, pages: 158 - 165 *

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