CN107262381A - A kind of oil nozzle needle-valve dimension automatic measuring device based on machine vision - Google Patents

A kind of oil nozzle needle-valve dimension automatic measuring device based on machine vision Download PDF

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Publication number
CN107262381A
CN107262381A CN201710326599.1A CN201710326599A CN107262381A CN 107262381 A CN107262381 A CN 107262381A CN 201710326599 A CN201710326599 A CN 201710326599A CN 107262381 A CN107262381 A CN 107262381A
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China
Prior art keywords
cylinder
block
support
sorting
workpiece
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Granted
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CN201710326599.1A
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CN107262381B (en
Inventor
王富良
袁豹
王霄
刘会霞
王伟
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Jiangsu University
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Jiangsu University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/04Sorting according to size
    • B07C5/10Sorting according to size measured by light-responsive means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/02Measures preceding sorting, e.g. arranging articles in a stream orientating
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/02Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/022Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of tv-camera scanning
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01Arrangements or apparatus for facilitating the optical investigation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00Features of devices classified in G01N21/00
    • G01N2201/08Optical fibres; light guides
    • G01N2201/088Using a sensor fibre

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The invention provides a kind of oil nozzle needle-valve dimension automatic measuring device based on machine vision, including control system, feed mechanism, positioning and clamping mechanism, vision measurement mechanism and mechanism for sorting;The feed mechanism includes conveyer stand, workpiece conveyer, conveying pipeline, order block, the first cylinder, the second cylinder, Work-sheet pressing block, workpiece and blocks block, proximity transducer and regulator cubicle;The positioning and clamping mechanism includes guide sleeve pedestal, manipulator cylinder, workpiece support block, the 3rd cylinder, fibre optical sensor and sensor base;The mechanism for sorting includes deflector chute, deflector chute support, sensor for countering, sensor stand, sorting slot, sliding translation mechanism and receiver;The control system includes PC and PLC control modules;The present invention can realize efficient to needle-valve, high-precision non-contact measurement and sorting, being capable of statistical measurement data in time.

Description

A kind of oil nozzle needle-valve dimension automatic measuring device based on machine vision
Technical field
The present invention relates to measurement and technical field of measurement and test, more particularly to a kind of oil nozzle needle-valve size based on machine vision is certainly Dynamic measurement apparatus.
Background technology
With being continuously increased for domestic economy downstream pressure, the production cost pressure of enterprise is also increasing, many enterprises Original reply is produced into using labour, compression is reduced, and then needs to change the mode of production while reducing manual labor, it is real The automated production and detection of existing producing line.Wherein, detection is most important.Mechanical vision inspection technology is emerging non-as one Contact measurement technology is gradually applied in industrial production.
Injector valve couple is one of three big precision pairs of diesel fuel system, needle-valve material selection W6Mo5Cr4V2,60~66HRC of heat treatment hardness, its required precision is high, and with industrial diesel engine, visitor/car Light-duty diesel engine demand is continuously increased, and set of fuel injection system is also continuously increased, correspondingly, and pintle nozzle match-ing parts are obtained greatly Amount production, the daily output is up to 30,000, and this requires the efficiency of measuring system, precision etc. to improve constantly.The structure of needle-valve can be divided into Three parts, needle point, size are cylindrical, afterbody, are generally processed per procedure and are both needed to include diameter, angle to large cylindrical tail dimension Degree, distance etc. are measured, and needle-valve part of being taken manually more than traditional metering system is carried out manually with pneumatic measuring instrument Measurement, manpower wastes serious, and production efficiency is relatively low.It is on-line checking, total with the standardization and legalization of product quality management Detection, the cry more and more higher monitored in real time.
The photo measure of so-called mechanical vision inspection technology, i.e. computerization.It is simulated human vision by camera, camera lens and entered Row identification, measurement are with judging.With high speed, high-precision, real-time advantage.Based on this, the application of machine vision metrology technology is more next It is more extensive.The Chinese patent of Application No. 200810124374.9 proposes a kind of large-scale metrology dress based on machine vision Put, large-size workpiece is placed on objective table by it, each regional area of workpiece is obtained by camera, by algorithm to each Local map As compensating summation, one-piece parts size is obtained;The Chinese patent of Application No. 200810243973.2 proposes a kind of non- The vision measurement device of the ship geometry of contact, device is surveyed using 4 industrial cameras to hull geometry size Amount, with specificity;The Chinese patent of Application No. 201310698709.9 proposes a kind of regarding for plate shaping limit curve Feel measurement apparatus, device carries out taking map analysis using vision camera to deformable material, curved edge degree is calculated, so as to draw material Expect forming limit curve, method is easy to use;The Chinese patent of Application No. 201410275227.7 propose it is a kind of complete into As vision measurement device, the device equally uses the desk-top measuring method of loading, complete the axiality of axial workpiece, circular runout, The measurement of cylindricity etc.;The Chinese patent of Application No. 201510395713.7 proposes a kind of face of cylinder based on 3D vision Radius measurement method, method obtains the three dimensional point cloud on the face of cylinder by dimensional visual measurement system, then spreads out into Two dimensional surface data, are then based on the sort algorithm of angle by two-dimensional development into one-dimensional point sequence, are carried out according to one-dimensional point sequence Ellipse fitting and circle are fitted, so as to obtain radius, this method anti-noise ability is strong, precision is higher.Foregoing invention employs vision E measurement technology is used as measuring method, although complete the measurement to target, but can not realize on-line real-time measuremen and statistical Analysis, it is impossible to feedback is monitored to process capability, it is impossible to adapt to produce in enormous quantities.
Therefore the online total detection in real time of needle-valve part and monitoring are realized, as enterprise's urgent need to solve the problem.Carry on the back herein Under scape, the present invention is based on machine vision metrology technology, realizes efficient to needle-valve, high-precision non-contact measurement and sorting, Can statistical measurement data in time, for the timely feedback of lathe, and the assembling of later stage fuel injector and security have it is important Meaning.
The content of the invention
For Shortcomings in the prior art, the invention provides a kind of oil nozzle needle-valve size based on machine vision is automatic Measurement apparatus, realizes efficient to needle-valve, high-precision non-contact measurement and sorting, can statistical measurement data in time, it is right In the timely feedback of lathe, and the assembling of later stage fuel injector and security it is significant.
The present invention is to realize above-mentioned technical purpose by following technological means.
A kind of oil nozzle needle-valve dimension automatic measuring device based on machine vision, including control system, feed mechanism, positioning Clamp system, vision measurement mechanism and mechanism for sorting;The feed mechanism include conveyer stand, workpiece conveyer, conveying pipeline, Order block, the first installing plate, first support, the first cylinder, the second cylinder, Work-sheet pressing block, workpiece block block, proximity transducer And regulator cubicle;The workpiece conveyer is fixed on conveyer stand, and the workpiece conveyer is vibration drawing mechanism, passes through work The vibrator installed inside part conveyer, part is sent to the discharging opening of workpiece conveyer;The order block and the first installing plate Connection, is fixed in first support by the first installing plate;The first support is fixedly mounted on regulator cubicle;The order block Connected by the discharging opening of conveying pipeline and workpiece conveyer, for part to be transported in the through hole in order block;The order Block is provided with the first groove and the second groove, and vertical with order block through hole respectively;First cylinder and the second cylinder are fixed on On one installing plate, first cylinder is connected by tracheae with the first magnetic valve, and second cylinder passes through tracheae and the second electricity Magnet valve is connected;The first cylinder stretch rod installs workpiece compact heap, makes work by the stretching of first the first cylinder of solenoid valve control Part compact heap enters the first groove;The second cylinder stretch rod installs workpiece and blocks block, passes through second the second gas of solenoid valve control Cylinder stretching makes workpiece block block to enter the second groove;In the proximity transducer insertion sequence block endoporus, for sensing part;First Cylinder is provided with the first magnetic switch and the second magnetic switch on stroke, for detecting whether the first cylinder stretches or be retracted to Position;Second cylinder on stroke be provided with the 3rd magnetic switch and the 4th magnetic switch, for detect the second cylinder whether stretch or Person shrinks in place;The positioning and clamping mechanism includes the second installing plate, second support, guide sleeve pedestal, manipulator cylinder, workpiece Support block, the 3rd cylinder, fibre optical sensor and sensor base;The guide sleeve pedestal is connected with the second installing plate, passes through Two installing plates are fixed on the secondary support bracket, and the second support is fixedly mounted on regulator cubicle;The guide sleeve pedestal is provided with Pilot hole, the pilot hole is located at immediately below the through hole of order block, and coaxial with the through hole of order block;The manipulator cylinder peace On the second installing plate, the manipulator cylinder is connected by tracheae with the 4th magnetic valve, passes through the 4th solenoid valve control machine The part that tool hand cylinder clamping drops from pilot hole;3rd cylinder is fixed on the second installing plate, and positioned at manipulator Below cylinder, the 3rd cylinder is connected by tracheae with the 3rd magnetic valve;The 3rd cylinder stretch rod installs workpiece support Block, is used to support part by the cylinder stretched part support block of the 3rd solenoid valve control the 3rd;The fibre optical sensor is by passing Sensor pedestal is fixed on the second support, for sense manipulator cylinder whether clamping parts;3rd cylinder is set on stroke There are the 5th magnetic switch and the 6th magnetic switch, whether stretch or shrink in place for the 3rd cylinder of detection;The vision is surveyed Measuring equipment includes planar light source, light source support frame, light source controller, telecentric lens, industrial camera, camera connection gusset and camera Support frame;One end of the planar light source is connected with the upper end of light source support frame, and the lower end of light source support frame is fixed on regulator cubicle On;The light source controller is electrically connected with planar light source, the lens interface connection of the telecentric lens and industrial camera, the phase Machine connection gusset is bolted fixation with one end of industrial camera and camera support respectively, and the other end of camera support is fixed In in regulator cubicle upper stage;The part clamped on the planar light source, telecentric lens and manipulator cylinder is located at same straight line On;The mechanism for sorting includes deflector chute, deflector chute support, sensor for countering, sensor stand, sorting slot, sliding translation machine Structure and receiver;The deflector chute is connected with deflector chute support, is fixed on by deflector chute support on regulator cubicle;The deflector chute One end is located at the lower section of workpiece support block, and the other end is placed on above sorting slot charging aperture;Counting is installed on the deflector chute Sensor;The receiver is provided with least two feed bins, and the receiver is positioned on regulator cubicle platform, positioned at sorting slot discharging The lower section of mouth;The sorting slot is fixed in sliding translation mechanism, by controlling sliding translation mechanism part is passed through sorting slot Into the different feed bins of receiver;The control system includes PC and PLC control modules;The PLC control modules and workpiece Conveyer, proximity transducer, fibre optical sensor, light source controller, industrial camera, sensor for countering, sliding translation mechanism, first Magnetic valve, the second magnetic valve, the 3rd magnetic valve, the 4th magnetic valve, the first magnetic switch, the second magnetic switch, the 3rd magnetic are opened Pass, the 4th magnetic switch, the 5th magnetic switch and the connection of the 6th magnetic switch;The PC passes through serial ports with PLC control modules It is connected with each other, for user input instruction, calibrating parameters, the image and measurement result of display capture in real time carry out data storage And statistical analysis.
Further, guide sleeve is installed, the guide sleeve is interference fitted with pilot hole in the pilot hole.
Further, positioning gripping block is respectively mounted on the inside of two clamping jaws of the manipulator cylinder, the positioning is clamped Block is provided with V-groove.
Further, the sliding translation mechanism includes sorting cylinder, sliding block and chute;The sorting cylinder and sliding block are fixed On pedestal, the pedestal is arranged on regulator cubicle;The sliding block is connected with sorting cylinder stretch rod, and the sliding block, which is arranged on, to be slided In groove, the sliding block is set to be moved back and forth in chute by sorting cylinder;At least two magnetic are installed on the sorting cylinder to open Close, magnetic switch is connected with PLC control modules;The magnetic switch is identical with the feed bin quantity of the receiver.
Further, the chute and sliding block are T-slot or oat tail groove structure.
Further, the sorting slot is provided with 3 hoppers;The receiver provided with 3 feed bins, and with the material described in 3 Groove outlet is corresponded, and makes hopper entrance and hopper insertion by sliding translation mechanism.
The beneficial effects of the present invention are:
1. the oil nozzle needle-valve dimension automatic measuring device of the present invention based on machine vision, passes through visual measuring equipment Surveyed data and judged result are fed back, and by control module control action, most institute's chaining pin valve part is divided into certified products, returned at last Repair product and scrap.
2. the oil nozzle needle-valve dimension automatic measuring device of the present invention based on machine vision, will by workpiece conveyer Needle-valve part is sent at positioning and clamping mechanism by feed mechanism and is clamped positioning, and then visual measuring equipment receives control letter Number progress takes figure to measure, and carries out analysis judgement and feedback, in the presence of sorting cylinder, is automatically performed sorting, improves life Efficiency is produced, production cost is reduced.
3. the oil nozzle needle-valve dimension automatic measuring device of the present invention based on machine vision, is prevented by order block Occur that material is stuck or blanking quantity is more than one in conveying.
Brief description of the drawings
Fig. 1 is the oil nozzle needle-valve dimension automatic measuring device general assembly drawing of the present invention based on machine vision;
Fig. 2 be feed mechanism of the present invention in order block structure chart;
Fig. 3 is positioning and clamping mechanism structure chart of the present invention;
Fig. 4 is the system construction drawing of visual measuring equipment of the present invention;
Fig. 5 is mechanism for sorting structure chart of the present invention;
Fig. 6 is mechanism for sorting Structure explosion diagram of the present invention;
Fig. 7 is the oil nozzle needle-valve dimension automatic measuring device workflow diagram of the present invention based on machine vision;
In figure:
1- regulator cubicles;2-PC machines;3- conveyer stands;4- workpiece conveyers;5- conveying pipelines;6- order blocks;7- first pacifies Fill plate;8- first supports;The cylinders of 9- first;The cylinders of 10- second;11- Work-sheet pressing blocks;12- workpiece block block;13- is close to be passed Sensor;The installing plates of 14- second;15- second supports;16- guide sleeves;17- guide sleeve pedestals;18- manipulator cylinders;19- is positioned Gripping block;20- workpiece support blocks;The cylinders of 21- the 3rd;22- fibre optical sensors;23- sensor bases;24- planar light sources;25- Pedestal;26- receivers;27- light source support frames;28- light source controllers;29- telecentric lens;30- industrial cameras;31- cameras connect Connect gusset;32- camera tripods;33- deflector chutes;34- deflector chute supports;35- sensor for countering;36- sensor stands;37- Sorting slot;38- sliding blocks;39- chutes;40- sorts cylinder.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously Not limited to this.
As shown in figure 1, real for one kind of the oil nozzle needle-valve dimension automatic measuring device of the present invention based on machine vision Mode is applied, the oil nozzle needle-valve dimension automatic measuring device based on machine vision includes control system, feed mechanism, locating clip Tight mechanism, vision measurement mechanism and mechanism for sorting.
As shown in Fig. 2 the feed mechanism includes conveyer stand 3, workpiece conveyer 4, conveying pipeline 5, order block 6, the One installing plate 7, first support 8, the first cylinder 9, the second cylinder 10, Work-sheet pressing block 11, workpiece block block 12, proximity transducer 13 and regulator cubicle 1;The workpiece conveyer 4 is fixed on conveyer stand 3, and the workpiece conveyer 4 is vibration drawing mechanism, The vibrator installed by the inside of workpiece conveyer 4, part is sent to the discharging opening of workpiece conveyer 4;Workpiece conveyer 4 works Principle is to arrange needle-valve part by vibrating bunker, can make the vertical vibration of workpiece conveyer 4, while also conveying workpiece Device 4 rocks in vibration, workpiece conveyer 4 that part is by this vibration around its vertical axis, so as to rise along helical orbit, by zero Part is arranged with order in certain direction, until being sent to discharging opening, by conveying pipeline 5 one by one feeding order block 6.The order Block 6 is connected with the first installing plate 7, is fixed on by the first installing plate 7 in first support 8;The first support 8 is fixedly mounted on On regulator cubicle 1;The order block 6 is connected by conveying pipeline 5 with the discharging opening of workpiece conveyer 4, suitable for part to be transported to In through hole in sequence block 6;The order block 6 is provided with the first groove and the second groove, and vertical with the through hole of order block 6 respectively;It is described First cylinder 9 and the second cylinder 10 are fixed on the first installing plate 7, and first cylinder 9 is connected by tracheae and the first magnetic valve Connect, second cylinder 10 is connected by tracheae with the second magnetic valve;The stretch rod of first cylinder 9 installs workpiece compact heap 11, Work-sheet pressing block 11 is entered the first groove by the stretching of first the first cylinder of solenoid valve control 9;Second cylinder 10 is stretched Bar installs workpiece and blocks block 12, makes workpiece block block 12 to enter the second groove by the stretching of second the second cylinder of solenoid valve control 10; In the endoporus of 13 insertion sequence block of proximity transducer 6, for sensing part;First cylinder 9 is provided with the first magnetic on stroke Whether switch and the second magnetic switch, stretch or shrink in place for the first cylinder 9 of detection;Second cylinder 10 is set on stroke There are the 3rd magnetic switch and the 4th magnetic switch, whether stretch or shrink in place for the second cylinder 10 of detection.
Shown in Fig. 3, the positioning and clamping mechanism includes the second installing plate 14, second support 15, guide sleeve pedestal 17, machinery Luck cylinder 18, workpiece support block 20, the 3rd cylinder 21, fibre optical sensor 22 and sensor base 23;The guide sleeve pedestal 17 It is connected, is fixed on by the second installing plate 14 in second support 15 with the second installing plate 14, the second support 15 is fixedly mounted On regulator cubicle 1;The guide sleeve pedestal 17 is provided with pilot hole, and the pilot hole is located at immediately below the through hole of order block 6, and Through hole with order block 6 is coaxial;The manipulator cylinder 18 is arranged on the second installing plate 14, and the manipulator cylinder 18 passes through Tracheae is connected with the 4th magnetic valve, and the part dropped from pilot hole is clamped by the 4th solenoid valve control manipulator cylinder 18; 3rd cylinder 21 is fixed on the second installing plate 14, and positioned at the lower section of manipulator cylinder 18, the 3rd cylinder 21 passes through Tracheae is connected with the 3rd magnetic valve;The stretch rod of 3rd cylinder 21 installs workpiece support block 20, passes through the 3rd solenoid valve control The stretched part support block 20 of 3rd cylinder 21 is used to support part;The fibre optical sensor 13 is fixed on by sensor base 23 The second support 15, for sense manipulator cylinder 18 whether clamping parts;3rd cylinder 21 is provided with the 5th magnetic on stroke Property switch and the 6th magnetic switch, for detecting whether the 3rd cylinder 21 stretches or shrink in place.
Shown in Fig. 4, the visual measuring equipment includes planar light source 24, light source support frame 27, light source controller 28, telecentricity Camera lens 29, industrial camera 30, camera connection gusset 31 and camera tripod 32;One end of the planar light source 24 is supported with light source The upper end connection of frame 27, the lower end of light source support frame 27 is fixed on regulator cubicle 1;The light source controller 28 and planar light source 24 Electrical connection, the telecentric lens 29 are connected with the lens interface of industrial camera 30, the camera connect gusset 31 respectively with industry One end of camera 30 and camera support 32 is bolted fixation, and the other end of camera support 32 is fixed on the top of regulator cubicle 1 On platform;The part clamped on the planar light source 24, telecentric lens 29 and manipulator cylinder 18 is located along the same line.
Shown in Fig. 5 and Fig. 6, the mechanism for sorting includes deflector chute 33, deflector chute support 34, sensor for countering 35, sensing Device support 36, sorting slot 37, sliding translation mechanism and receiver 26;The deflector chute 33 is connected with deflector chute support 34, is passed through Deflector chute support 34 is fixed on regulator cubicle 1;Described one end of deflector chute 33 is located at the lower section of workpiece support block 20, and the other end is placed Above the charging aperture of sorting slot 37;Sensor for countering 35 is installed on the deflector chute 33;The receiver 26 is provided with least two Individual feed bin, the receiver 26 is positioned on the platform of regulator cubicle 1, positioned at the lower section of the discharging opening of sorting slot 37;The sorting slot 37 It is fixed in sliding translation mechanism, passes through the difference for controlling sliding translation mechanism to make part enter receiver 26 by sorting slot 37 Feed bin.
The control system includes PC 2 and PLC control modules;It is the PLC control modules and workpiece conveyer 4, close Sensor 13, fibre optical sensor 22, light source controller 28, industrial camera 30, sensor for countering 35, sliding translation mechanism, first Magnetic valve, the second magnetic valve, the 3rd magnetic valve, the 4th magnetic valve, the first magnetic switch, the second magnetic switch, the 3rd magnetic are opened Pass, the 4th magnetic switch, the 5th magnetic switch and the connection of the 6th magnetic switch;The PC 2 passes through serial ports with PLC control modules It is connected with each other, for user input instruction, calibrating parameters, the image and measurement result of display capture in real time carry out data storage And statistical analysis.
The course of work:Needle-valve part is fitted into workpiece conveyer 4 first, starter.Wherein feed mechanism is automatically complete Into the arrangement and conveying of needle-valve part cephlad-caudal uniformity, control needle-valve part is sequentially in entering order block 6, proximity transducer 13 perceive needle-valve parts in place, output signal to control module, by the extending action of first the first cylinder of solenoid valve control 9, the One cylinder 9 runs rear first magnetic switch sensor senses signal in place and delivers a signal to control module, passes through the second electromagnetism Valve control the retract action of the second cylinder 10, now at first the needle-valve part of entering order block 6 by Action of Gravity Field by pilot hole from By falling, stopped by workpiece support block 20 and stopped, fibre optical sensor 22 detects needle-valve part signal in place, and passes to control Molding block, control module sends instructions to industrial camera 30, carries out the quick of workpiece and takes figure, PC 2 is used for analyzing, measure and sentencing It is disconnected, and by surveyed data input storage facilities, while will determine that result feeds back to control module, control module control sliding translation Mechanism action, sliding translation mechanism action in place after, by the 3rd solenoid valve control module control the retract action of the 3rd cylinder 21, The 6th magnetic switch sensor senses and signal is transmitted after in place, pass through the 4th solenoid valve control module control machinery hand cylinder 18 Release is acted, and controls the second cylinder 10, the first cylinder 9 to complete homing action.After manipulator cylinder 18 unclamps, institute's chaining pin valve zero Part free-falling, by deflector chute, sorting slot enters in receiver 43.In needle-valve part dropping process, sensor for countering 35 is counted Count and perceive and deliver a signal to control module, control module controls the 3rd cylinder 21 to reset, and now a circulation industrial is completed, can Automatically next circulation work is carried out.
Guide sleeve 16 is installed, the guide sleeve 16 is interference fitted with pilot hole in the pilot hole.In order to prevent pilot hole Long-term abrasion is caused, and needle-valve part can not be to falling into the center of manipulator cylinder 18.
In order to ensure manipulator cylinder 18 is accurate, positioning is respectively mounted on the inside of two clamping jaws of the manipulator cylinder 18 Gripping block 19, the positioning gripping block 19 is provided with V-groove.
The sliding translation mechanism includes sorting cylinder 40, sliding block 38 and chute 39;The sorting cylinder 40 and sliding block 38 It is fixed on pedestal 25, the pedestal 25 is arranged on regulator cubicle 1;The sliding block 38 is connected with the sorting stretch rod of cylinder 40, institute Sliding block 38 is stated in chute 39, the sliding block 38 is moved back and forth in chute 39 by sorting cylinder 40;The sorting At least two magnetic switch are installed, magnetic switch is connected with PLC control modules on cylinder 40;The magnetic switch and the splicing The feed bin quantity of disk 26 is identical.The chute 39 and sliding block 38 are T-slot or oat tail groove structure.
According to practical condition, the sorting slot 37 is provided with 3 hoppers,;The receiver 26 is provided with 3 feed bins, Certified products area, reprocessed products area and scrap area can be designated as respectively and exported with the hopper described in 3 to correspond, by sliding Translation mechanism makes hopper entrance and the insertion of hopper 33.
For the present invention preferred embodiment, but the present invention is not limited to above-mentioned embodiment to the embodiment, not In the case of the substantive content of the present invention, any conspicuously improved-replacement that those skilled in the art can make Or modification belongs to protection scope of the present invention.

Claims (6)

1. a kind of oil nozzle needle-valve dimension automatic measuring device based on machine vision, it is characterised in that including control system, feeding Mechanism, positioning and clamping mechanism, vision measurement mechanism and mechanism for sorting;
The feed mechanism includes conveyer stand (3), workpiece conveyer (4), conveying pipeline (5), order block (6), the first installation Plate (7), first support (8), the first cylinder (9), the second cylinder (10), Work-sheet pressing block (11), workpiece block block (12), approached Sensor (13) and regulator cubicle (1);The workpiece conveyer (4) is fixed on conveyer stand (3);The order block (6) with First installing plate (7) is connected, and the upper end of first support (8) is fixed on by the first installing plate (7);The first support (8) Lower end is fixedly mounted on regulator cubicle (1);The order block (6) is connected by the discharging opening of conveying pipeline (5) and workpiece conveyer (4) Connect, for part to be transported in the through hole in order block (6);The order block (6) is provided with the first groove and the second groove, and divides It is not vertical with order block (6) through hole;First cylinder (9) and the second cylinder (10) are separately fixed on the first installing plate (7), First cylinder (9) is connected by tracheae with the first magnetic valve, and second cylinder (10) passes through tracheae and the second magnetic valve Connection;First cylinder (9) stretch rod installs workpiece compact heap (11), is drawn by first the first cylinder of solenoid valve control (9) Stretching makes Work-sheet pressing block (11) enter the first groove;Second cylinder (10) stretch rod installs workpiece and blocks block (12), by the The stretching of two the second cylinders of solenoid valve control (10) makes workpiece block block (12) to enter the second groove;Proximity transducer (13) insertion In order block (6) endoporus, for sensing part;First cylinder (9) is opened on stroke provided with the first magnetic switch and the second magnetic Close, whether stretch or shrink in place for the first cylinder of detection (9);Second cylinder (10) is opened on stroke provided with the 3rd magnetic Close and the 4th magnetic switch, whether stretch or shrink in place for the second cylinder of detection (10);
The positioning and clamping mechanism includes the second installing plate (14), second support (15), guide sleeve pedestal (17), manipulator cylinder (18), workpiece support block (20), the 3rd cylinder (21), fibre optical sensor (22) and sensor base (23);The guide sleeve base Seat (17) is connected with the second installing plate (14), is fixed on the upper end of second support (15) by the second installing plate (14), and described the The lower end of two supports (15) is fixedly mounted on regulator cubicle (1);The guide sleeve pedestal (17) is provided with pilot hole, the guiding Hole position is and coaxial with the through hole of order block (6) immediately below the through hole of order block (6);The manipulator cylinder (18) is arranged on On second installing plate (14), the manipulator cylinder (18) is connected by tracheae with the 4th magnetic valve, passes through the 4th magnetic valve control Manipulator cylinder (18) processed clamps the part dropped from pilot hole;3rd cylinder (21) is fixed on the second installing plate (14) On, and below manipulator cylinder (18), the 3rd cylinder (21) is connected by tracheae with the 3rd magnetic valve;Described 3rd Cylinder (21) stretch rod installs workpiece support block (20), passes through the 3rd solenoid valve control the 3rd cylinder (21) stretched part support block (20) it is used to support part;The fibre optical sensor (13) is fixed on the second support (15) by sensor base (23), For sense manipulator cylinder (18) whether clamping parts;3rd cylinder (21) is provided with the 5th magnetic switch and the 6th on stroke Whether magnetic switch, stretch or shrink in place for the 3rd cylinder (21) of detection;
The visual measuring equipment includes planar light source (24), light source support frame (27), light source controller (28), telecentric lens (29), industrial camera (30), camera connection gusset (31) and camera tripod (32);One end of the planar light source (24) and light The upper end connection of source support frame (27), the lower end of light source support frame (27) is fixed on regulator cubicle (1);The light source controller (28) electrically connected with planar light source (24), the telecentric lens (29) are connected with the lens interface of industrial camera (30), the phase The one end of machine connection gusset (31) respectively with industrial camera (30) and camera support (32) is bolted fixation, camera support (32) the other end is fixed in regulator cubicle (1) upper stage;The planar light source (24), telecentric lens (29) and mechanical luck The part clamped on cylinder (18) is located along the same line;
The mechanism for sorting include deflector chute (33), deflector chute support (34), sensor for countering (35), sensor stand (36), Sorting slot (37), sliding translation mechanism and receiver (26);The deflector chute (33) is connected with deflector chute support (34), by leading Hopper support (34) is fixed on regulator cubicle (1);Described deflector chute (33) one end is located at the lower section of workpiece support block (20), another End is placed on above sorting slot (37) charging aperture;Sensor for countering (35) is installed on the deflector chute (33);The receiver (26) at least two feed bins are provided with, the receiver (26) is positioned on regulator cubicle (1) platform, positioned at sorting slot (37) discharging opening Lower section;The sorting slot (37) is fixed in sliding translation mechanism, by controlling sliding translation mechanism to make part by sorting Groove (37) enters the different feed bins of receiver (26);
The control system includes PC (2) and PLC control modules;It is the PLC control modules and workpiece conveyer (4), close Sensor (13), fibre optical sensor (22), light source controller (28), industrial camera (30), sensor for countering (35), sliding translation Mechanism, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve, the 4th magnetic valve, the first magnetic switch, the second magnetic switch, Three magnetic switch, the 4th magnetic switch, the 5th magnetic switch and the connection of the 6th magnetic switch;The PC (2) controls mould with PLC Block is connected with each other by serial ports;The PC (2) is connected with industrial camera (30).
2. the oil nozzle needle-valve dimension automatic measuring device according to claim 1 based on machine vision, it is characterised in that institute State and guide sleeve (16) is installed in pilot hole, the guide sleeve (16) is interference fitted with pilot hole.
3. the oil nozzle needle-valve dimension automatic measuring device according to claim 1 based on machine vision, it is characterised in that institute State and positioning gripping block (19) is respectively mounted on the inside of two clamping jaws of manipulator cylinder (18), set on the positioning gripping block (19) There is V-groove.
4. the oil nozzle needle-valve dimension automatic measuring device according to claim 1 based on machine vision, it is characterised in that institute Stating sliding translation mechanism includes sorting cylinder (40), sliding block (38) and chute (39);The sorting cylinder (40) and sliding block (38) It is fixed on pedestal (25), the pedestal (25) is arranged on regulator cubicle (1);The sliding block (38) stretches with sorting cylinder (40) Bar is connected, and the sliding block (38) is arranged in chute (39), makes the sliding block (38) in chute (39) by sorting cylinder (40) It is interior to move back and forth;At least two magnetic switch are installed on the sorting cylinder (40), magnetic switch is connected with PLC control modules; The magnetic switch is identical with the feed bin quantity of the receiver (26).
5. the oil nozzle needle-valve dimension automatic measuring device according to claim 4 based on machine vision, it is characterised in that institute It is T-slot or oat tail groove structure to state chute (39) and sliding block (38).
6. the oil nozzle needle-valve dimension automatic measuring device according to claim 1 based on machine vision, it is characterised in that institute Sorting slot (37) is stated provided with 3 hoppers;The receiver (26) exports one by one provided with 3 feed bins, and with the hopper described in 3 Correspondence, makes hopper entrance and hopper (33) insertion by sliding translation mechanism.
CN201710326599.1A 2017-05-10 2017-05-10 A kind of oil nozzle needle-valve dimension automatic measuring device based on machine vision Expired - Fee Related CN107262381B (en)

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CN107824469A (en) * 2017-10-30 2018-03-23 浙江精雷电器股份有限公司 A kind of external diameter separator of wear ring
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CN110665836A (en) * 2019-11-01 2020-01-10 桂林航天电子有限公司 Relay yoke automatic sorting device
CN112762834A (en) * 2021-01-11 2021-05-07 天津大学 Multifunctional on-line detection equipment
CN113351503A (en) * 2021-06-23 2021-09-07 上海宏金设备工程有限公司 Scaffold detection and sorting system and method
CN113351503B (en) * 2021-06-23 2023-02-24 上海宏金设备工程有限公司 Scaffold detection and sorting system and method
CN113663929A (en) * 2021-09-24 2021-11-19 深圳市广利达精密机械有限公司 Automatic machining part automatic machining sorting equipment and method thereof

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