CN101865861A - Automatic detection system for hardware appearance - Google Patents
Automatic detection system for hardware appearance Download PDFInfo
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- CN101865861A CN101865861A CN 201010191124 CN201010191124A CN101865861A CN 101865861 A CN101865861 A CN 101865861A CN 201010191124 CN201010191124 CN 201010191124 CN 201010191124 A CN201010191124 A CN 201010191124A CN 101865861 A CN101865861 A CN 101865861A
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Abstract
The invention discloses an automatic detection system for hardware appearance. The structure of the system comprises a loading mechanism, a feeding mechanism, a detection device, a sorting device and a control system; the loading mechanism comprises an electromotor, a vibrating disk and a guide pipe; the feeding mechanism comprises a belt conveyer, a workpiece positioning guide rail and an unqualified product discharge groove; the detection device comprises detection software and two sets of hardware; the detection software comprises a detection control program, a standard workpiece technical parameter and a data calculating and processing program; the hardware comprises a workpiece position inductor, two LED light sources and two industrial CCD camera; the sorting device comprises a cylinder, an electromagnetic valve, an air pipe and a pressure reducing valve; and a turnover mechanism comprises a U-shaped chute and a turnover rack. The system combines computer processing and image technology and is used in an industrial automatic control production line so as to realize automatic loading and feeding, secondary intelligent detection and automatic sorting and improve the detection precision and production efficiency. The system is suitable to be used in a workpiece appearance detection process.
Description
Technical field
The present invention relates to a kind of parts checkout equipment, be specially a kind of automatic detection system for hardware appearance.
Background technology
In the actual production process of a lot of industrial occasions,,, cause unnecessary loss in order to avoid product quality does not pass a test because the strict demand of quality control need in time be rejected the unacceptable product on the production line.The metal handware is widely used in every field such as machinery, electric power, electronics, computing machine.Along with domestic and international scientific and technological expanding economy, increasing to kind, model and the quantity size of metal handware demand, perfectly require standard also more and more higher to its outside surface dimensional parameters and surface.For the manufacturing enterprise of this class handware, the detection operation of face shaping, size and the surface imperfection of product has been occupied consequence in whole process flow, taken bigger manpower, place, fund resource
At present, prior art generally is the manual detection mode to the detection of metal handware especially chip filled gold hardware appearance, size and surface imperfection, by veteran testing staff the product on the line is judged fast, perhaps after a procedure, manually inspected by random samples.This mode not only labour intensity is big, and efficient is low, and low precision, and the probability of omission, flase drop is also very high.The raising of overall product quality and the reduction of production cost have been influenced.
Thereby prior art awaits to improve and improve.
Summary of the invention
The object of the present invention is to provide a kind of robotization to detect the equipment of metal hardware appearance shape, size and surface imperfection.
Technical scheme of the present invention comprises:
A kind of automatic detection system for hardware appearance wherein, comprising:
Feed mechanism--be used for handware to be checked is served travelling belt;
Feed mechanism--be used to transmit handware process detecting position, branch bit selecting, flip bit through examined and sorting;
Pick-up unit--be used to detect handware appearance, size, case of surface defects; And data are sent to control system;
Sorting unit--be used under control system control, defective workpiece being distributed connecting gear;
Turning device--be used for secondary detection is accepted in the qualified workpiece upset of one-time detection;
Control system--be used to store the Workpiece standard data, will detect data and normal data contrast stratagem and determine that workpiece is certified products or unacceptable product, control automatic checkout system material loading, transmission, detection, sub-material, upset overall process.
Described detection system, wherein: described feed mechanism comprises: motor, vibrating disk, passage; Motor is the vibrating disk drive unit, and passage is connected vibrating disk with travelling belt, and the vibrating disk vibration frequency can be regulated.
Described detection system, wherein: described vibrating disk surface scribbles anti-wear coating.
Described detection system, wherein: described feed mechanism comprises belt conveyor, workpiece positioning guide rail, unacceptable product blow tank; Conveyor is by the operation of direct motor drive belt, and positioning guide rail comprises the interval guide plate on belt both sides outside framework and the belt.
Described detection system, wherein: described belt conveyor is provided with speed regulator.
Described detection system, wherein: described pick-up unit comprises that detecting software and two overlaps hardware; Detect software setting on controller; Detection hardware is connected with data-signal by control signal with detecting between the software.
Described detection system, wherein: described every cover detection hardware comprises location of workpiece inductor, two led light sources, two industrial CCD cameras, is arranged on the relevant detection station.
Described detection system, wherein: described CCD camera adopts and triggers shooting style, and view data is sent to detection software.
Described detection system, wherein: described CCD camera adopts continuous shooting style, and view data is sent to detection software.
Described detection system, wherein: described sorting unit comprises cylinder, solenoid valve, tracheae, reduction valve; Cylinder solenoid valve is connected with detection software control signal.
Described detection system, wherein: described switching mechanism comprises a U-shaped chute and a rollover stand, switching mechanism is arranged on for the first time between two sections conveyors between sorting unit and the second time pick-up unit.
Described detection system, wherein: described controller comprises the detection software and the electrical apparatus control system of pick-up unit; Detect software and comprise detection control program, standard workpiece technical parameter, data computation handling procedure; Electrical apparatus control system comprises: the transmission of location of workpiece transducing signal, ccd image data signal transmission; Vibrating relay opens stop signal, the conveying belt relay opens stop signal, LED lamp, CCD camera trigger pip, sends the generation and the delivery unit/circuit of cylinder solenoid valve trigger pip.
Described detection system, wherein: described location of workpiece induced signal transmission, ccd image data signal transmission wire road are lightguide cable link.
The technique effect that the present invention produces is: the present invention combines Computer Processing and is applied on the industrial automation control production line with image technique, reached the check of high precision, high-speed, robotization, standardization, intelligent metal hardware appearance size and surface imperfection, shortcoming such as overcome that manual detection labour intensity is big, efficient is low, low precision, erroneous judgement are many.Realize automatic charging feeding, secondary Intelligent Measurement, sorting automatically, improved accuracy of detection and production efficiency.
Description of drawings
Fig. 1 is an automatic detection system for hardware appearance structural representation of the present invention;
Fig. 2 is a sorting unit structural representation of the present invention;
Fig. 3 is a switching mechanism structural representation of the present invention;
Fig. 4 is a control circuit wiring diagram of the present invention.
Fig. 5 is a control circuit schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiment, illustrate that structural principle of the present invention is as follows:
As shown in Figure 1, automatic detection system for hardware appearance structure of the present invention comprises feed mechanism, feed mechanism, pick-up unit, sorting unit and five parts of control system.Wherein:
Feed mechanism is used for handware to be checked is served travelling belt;
Feed mechanism is used to transmit handware process detecting position, branch bit selecting, flip bit through examined and sorting;
Pick-up unit is used to detect handware appearance, size, case of surface defects; And data are sent to control system;
Sorting unit is used under control system control defective workpiece being distributed connecting gear;
Turning device is used for secondary detection is accepted in the qualified workpiece upset of one-time detection;
Control system is used to store the Workpiece standard data, will detect data and normal data contrast stratagem determines that workpiece is certified products or unacceptable product, control automatic checkout system material loading, transmission, detection, sub-material, upset overall process.
In order to realize function, the each several part structure is provided with as follows:
One, feed mechanism comprises: motor, vibrating disk 11, passage; Motor is the drive unit of vibrating disk 11, is connected with vibrating disk 11 by speed reduction unit,, arrives on the conveying belt 21 by passage by certain positional alignment by the detected member behind the vibrating disk 11.
In order to control discharging speed, vibrating disk 11 vibration frequencies can be regulated.In order to alleviate the wearing and tearing of workpiece on vibrating disk 11, vibrating disk 11 surfaces scribble anti-wear coating.
Two, feed mechanism comprises: two sections belt conveyor, be located at workpiece positioning guide rail, unacceptable product blow tank on the conveyor; Conveyor is by 21 operations of direct motor drive belt, the operation of belt 21 conveying workpieces.Travelling belt 21 is provided with positioning guide rail, and the position relative fixed exists with certain state in the time of can guaranteeing the workpiece conveying.Comprise that also the belt both sides guarantee the fixedly outside framework of workpiece with the certain orbital motion of certain position and edge.The workpiece positioning guide rail guarantees can not to contact between two adjacent workpieces, guarantees that position transducer judges that correctly the location triggered camera takes pictures.
Belt conveyor is provided with speed regulator, and the belt transfer rate is generally between 0.08--0.25m/s among the embodiment.Two sections long respectively 1050mm of conveyor and 600mm.Middle by switching mechanism 51 connections.
Three, pick-up unit comprises that detecting software and two overlaps detection hardware; Detect software setting on controller, present embodiment adopts the Omron controller to carry software to carry out secondary development and finish; Hardware setting is on two stations, every cover detection hardware comprises location of workpiece inductor 31, two red-light LED light sources 32, two industrial CCD cameras 33, be arranged on the station relevant position, led light source 32 adopts coaxial light source VS-RC80 and controller thereof, industrial camera 33 adopts 2,000,000 pixel color camera FZ-SC2M, guarantee that each station can both obtain distinct image, CCD camera 33 adopts and triggers shooting style, and view data is sent to detection software.
Present embodiment adopts the Color Image Acquisition card, image pick-up card will become the image data stream of certain format from the analog or digital conversion of signals of camera, detect the image that the software processes image pick-up card obtains, and the view data of finishing input is handled, utilize the gradation of image value to change and flatness realization defects detection, utilize the contrast algorithm to realize outward appearance and size detection.
Four, the sorting unit structure comprises cylinder 41, solenoid valve 42, tracheae 43, reduction valve 44 as shown in Figure 2; Solenoid valve 42 is connected with detection software control signal, opens when solenoid valve 42 is received sorting signals, and source of the gas promotes cylinder 41 actions, with defective workpiece " bullet " lower conveyor belt.
Five, the switching mechanism structure as shown in Figure 3, comprise a U-shaped chute 51 and a rollover stand, seal around the chute 51, bulk and shape guarantee that workpiece longitudinally turns over turnback in the chute, fall into then on another section conveyor 21, switching mechanism is arranged on for the first time between two sections conveyors 21 between sorting unit and the second time pick-up unit, and is connected the slit between the belt and is controlled at and does not influence the workpiece even running.
Six, controller comprises the detection software and the electrical apparatus control system of pick-up unit; Detect software and comprise detection control program, standard workpiece technical parameter, data computation handling procedure; Electrical apparatus control system circuit theory such as Fig. 4, shown in Figure 5, wherein, Fig. 4 is a wiring diagram, Fig. 5 is control principle figure.The electrical apparatus control system circuit comprises: the transmission of location of workpiece transducing signal, ccd image data signal transmission; Vibrating relay opens stop signal, the conveying belt relay opens stop signal, LED lamp, CCD camera trigger pip, the generation of sending the cylinder solenoid valve trigger pip and delivery unit/circuit etc.
The transmission of location of workpiece induced signal, ccd image data signal transmission wire road are lightguide cable link.
Technical solution of the present invention has obtained testing fully levying in experiment and production practices, has obtained better technical effect: in original employee's more than 300 science and technology-oriented manufacturing enterprise, can reduce the employee over one hundred people, economic benefit and product quality improve significantly.
Appearance surfaces detection technique of the present invention is applicable to single face, two-sided even multiaspect body surface outward appearance detection, is applicable to that also other outer article appearance surfaces of metal handware detect.
In sum, of the present invention Computer Processing is combined with image technique and is applied in the metal hardware appearance detect on the automatic production line, compare with existing manual detection, its characteristics one are that material loading, feeding, detection are robotization, the fast efficient height of speed, labour intensity is little; The 2nd, testing result is accurate, reliable, and the examination criteria unanimity has realized purpose of the present invention.
Should be understood that above-mentioned description at specific embodiment is comparatively detailed, can not therefore think the restriction to scope of patent protection of the present invention, scope of patent protection of the present invention should be as the criterion with claims.
Claims (13)
1. an automatic detection system for hardware appearance is characterized in that, comprising:
Feed mechanism--be used for handware to be checked is served travelling belt;
Feed mechanism--be used to transmit handware process detecting position, branch bit selecting, flip bit through examined and sorting;
Pick-up unit--be used to detect handware appearance, size, case of surface defects; And data are sent to control system;
Sorting unit--be used under control system control, defective workpiece being distributed connecting gear;
Turning device--be used for secondary detection is accepted in the qualified workpiece upset of one-time detection;
Control system--be used to store the Workpiece standard data, will detect data and normal data contrast stratagem and determine that workpiece is certified products or unacceptable product, control automatic checkout system material loading, transmission, detection, sub-material, upset overall process.
2. detection system according to claim 1 is characterized in that: described feed mechanism comprises: motor, vibrating disk, passage; Motor is the vibrating disk drive unit, and passage is connected vibrating disk with travelling belt, and the vibrating disk vibration frequency can be regulated.
3. detection system according to claim 2 is characterized in that: described vibrating disk surface scribbles anti-wear coating.
4. detection system according to claim 1 is characterized in that: described feed mechanism comprises belt conveyor, workpiece positioning guide rail, unacceptable product blow tank; Conveyor is by the operation of direct motor drive belt, and positioning guide rail comprises the interval guide plate on belt both sides outside framework and the belt.
5. detection system according to claim 4 is characterized in that: described belt conveyor is provided with speed regulator.
6. detection system according to claim 1 is characterized in that: described pick-up unit comprises that detecting software and two overlaps hardware; Detect software setting on controller; Detection hardware is connected with data-signal by control signal with detecting between the software.
7. according to according to the described detection system of claim 6, it is characterized in that: described every cover detection hardware comprises location of workpiece inductor, two led light sources, two industrial CCD cameras, is arranged on the relevant detection station.
8. according to according to the described detection system of claim 7, it is characterized in that: described CCD camera adopts and triggers shooting style, and view data is sent to detection software.
9. according to according to the described detection system of claim 7, it is characterized in that: described CCD camera adopts continuous shooting style, and view data is sent to detection software.
10. detection system according to claim 1 is characterized in that: described sorting unit comprises cylinder, solenoid valve, tracheae, reduction valve; Cylinder solenoid valve is connected with detection software control signal.
11. detection system according to claim 1 is characterized in that: described switching mechanism comprises a U-shaped chute and a rollover stand, and switching mechanism is arranged on for the first time between two sections conveyors between sorting unit and the second time pick-up unit.
12. detection system according to claim 1 is characterized in that: described controller comprises the detection software and the electrical apparatus control system of pick-up unit; Detect software and comprise detection control program, standard workpiece technical parameter, data computation handling procedure; Electrical apparatus control system comprises: the transmission of location of workpiece transducing signal, ccd image data signal transmission; Vibrating relay opens stop signal, the conveying belt relay opens stop signal, LED lamp, CCD camera trigger pip, sends the generation and the delivery unit/circuit of cylinder solenoid valve trigger pip.
13. detection system according to claim 12 is characterized in that: described location of workpiece induced signal transmission, ccd image data signal transmission wire road are lightguide cable link.
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| CN 201010191124 CN101865861A (en) | 2010-05-28 | 2010-05-28 | Automatic detection system for hardware appearance |
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| CN 201010191124 CN101865861A (en) | 2010-05-28 | 2010-05-28 | Automatic detection system for hardware appearance |
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Application publication date: 20101020 |