CN108993917A - A kind of quality detecting system of microsprings, method and device - Google Patents
A kind of quality detecting system of microsprings, method and device Download PDFInfo
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- CN108993917A CN108993917A CN201810317435.7A CN201810317435A CN108993917A CN 108993917 A CN108993917 A CN 108993917A CN 201810317435 A CN201810317435 A CN 201810317435A CN 108993917 A CN108993917 A CN 108993917A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting 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
- B07C5/04—Sorting according to size
- B07C5/10—Sorting according to size measured by light-responsive means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting 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
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting 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
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting 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
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
- B07C5/365—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Sorting Of Articles (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present invention is applicable in spring production automation field, provide a kind of quality detecting system of microsprings, method and device, the system includes: cabinet, loading assemblies, manipulator take-off assembly, detection components, defective products sorting component, non-defective unit discharge component, visual detection equipment and programmable logic controller (PLC), when receiving the request for treating survey microsprings progress quality testing, control detection camera, which is treated, first surveys microsprings progress spring Image Acquisition, then control visual detection equipment carries out product identification and size detection to collected spring image, obtain corresponding quality measurements, the quality measurements are sent to programmable logic controller (PLC), finally control programmable logic controller (PLC) sends processing signal to non-defective unit discharge component or defective products sorting component according to quality measurements, to treat micrometer type Spring performs corresponding processing, to improve the degree of automation of microsprings quality testing, and then improves the efficiency of quality testing.
Description
Technical field
The invention belongs to spring production automation field more particularly to a kind of quality detecting systems of microsprings, method
And device.
Background technique
Spring has important purposes in people's daily life and production, for example, playing mitigation impact in the car, inhaling
The buffer spring and spring clutch for receiving shock effect play the role of the valve spring and valve bullet that control movement in internal combustion engine
Spring, there are also store clock spring, instrument spring etc. of the energy as power source.Spring it is many kinds of, can divide by shape difference
For helical spring, butterfly spring, ring spring, scroll spring and leaf spring etc., spring varies, wherein the life of microsprings
It is very big to produce quantity, primary production just has hundreds of thousands, with circuit miniaturization and the maturation of spring production technology, spring
Specification is smaller and smaller, and machining accuracy and speed are higher and higher, causes the difficulty of microsprings product later period quality testing also more next
It is higher, it is especially a great problem to the dimensional measurement of microsprings, at present substantially using the method for artificial sampling detection, people
Work sampling Detection can only detect one by one, and the eyesight of testing staff, limited resistance, can not accomplish to carry out spring product complete
Face checks, so that spring product is caused largely to do over again and waste of raw materials, or even receives complaint and the return of goods of client, this people
Work sampling Detection method can not accomplish comprehensively and effectively to monitor the quality of microsprings, be a kind of for product quality
Serious hidden danger.
Summary of the invention
The purpose of the present invention is to provide a kind of quality detecting systems of microsprings, method and device, it is intended to solve existing
There is technology to lead to the quality testing low efficiency of microsprings, problem at high cost.
On the one hand, the present invention provides a kind of quality detecting system of microsprings, the system comprises:
Cabinet, for the various components in the quality detecting system of support microsprings；
The loading assemblies being mounted on the cabinet, the loading assemblies are made of vibrating disk and straight vibration, the vibrating disk
For microsprings to be measured to be arranged by preset direction, the straight vibration for the microsprings to be measured that will arrange by
Sequence discharges；
The manipulator take-off assembly being mounted on the cabinet, the manipulator take-off assembly is by optical fiber in place, manipulator
Arm, lifting cylinder, flat-removing air cyclinder, feeding cylinder, feeding finger, sorting cylinder and sorting finger composition, are used for from preset
Feeding position carries out feeding, and the microsprings to be measured of acquirement are placed on preset check bit；
The detection components being mounted on the cabinet, the detection components are by detection camera, detection light source and detection branch
Frame composition, for taking pictures to the microsprings to be measured for being placed on the check bit；
The defective products sorting component being mounted on the cabinet, the defective products sorting component by defective products processing cylinder,
Defective products discharging sliding rail and defective products pulp-collecting box composition, for handling the defective products in the microsprings to be measured；
The non-defective unit discharge component being mounted on the cabinet, the non-defective unit discharge component is by non-defective unit discharging sliding rail, air blowing mould
Block and non-defective unit pulp-collecting box composition, for handling the non-defective unit in the microsprings to be measured；
The visual detection equipment being connect with the detection components, for described to be measured miniature to being shot by detection components
Spring photo carries out product identification；And
With the loading assemblies, the manipulator take-off assembly, the detection components, the defective products sorting component, institute
The programmable logic controller (PLC) for stating non-defective unit discharge component and visual detection equipment connection, for receiving the vision-based detection
The recognition result of equipment output, and to loading assemblies, the manipulator take-off assembly, the detection components, described bad
Product sorting component and the non-defective unit discharge component are controlled.
On the other hand, the present invention provides a kind of quality determining method of the quality detecting system of above-mentioned microsprings, institutes
The method of stating includes the following steps:
When receiving the request for treating survey microsprings progress quality testing, the detection camera is controlled to being placed on
The microsprings to be measured for stating check bit carry out spring Image Acquisition；
The check bit that the visual detection equipment is obtained by the collected spring image and in advance, described is controlled without production
Background image when product carries out residual noise reduction, obtains the corresponding residual image of the spring image, and by the residual image into
Row gray processing processing, to obtain corresponding gray level image；
Minimum circumscribed rectangle is carried out to the gray level image using contours extract algorithm and minimum circumscribed rectangle algorithm to mention
It takes, obtains the location information of the microsprings to be measured；
The microsprings to be measured are determined with the presence or absence of defect, to obtain corresponding matter according to the location information of acquisition
Testing result is measured, and the quality measurements are sent to the programmable logic controller (PLC)；
It controls the programmable logic controller (PLC) and is gone out according to quality measurements transmission processing signal to the non-defective unit
Component or the defective products sorting component are expected, to perform corresponding processing to the microsprings to be measured.
On the other hand, the present invention provides a kind of quality detection device of the quality detecting system of above-mentioned microsprings, institutes
Stating device includes:
Image acquisition units, for when receive treat survey microsprings and carry out the request of quality testing when, described in control
Detection camera carries out spring Image Acquisition to the microsprings to be measured for being placed on the check bit；
Image processing unit is obtained for controlling the visual detection equipment by the collected spring image and in advance
, the check bit without product when background image carry out residual noise reduction, obtain the corresponding residual image of the spring image, and
The residual image is subjected to gray processing processing, to obtain corresponding gray level image；
Location information acquiring unit, for using contours extract algorithm and minimum circumscribed rectangle algorithm to the grayscale image
As carrying out minimum circumscribed rectangle extraction, the location information of the microsprings to be measured is obtained；
Defect determination unit determines the microsprings to be measured with the presence or absence of scarce for the location information according to acquisition
It falls into, to obtain corresponding quality measurements, and the quality measurements is sent to the programmable logic controller (PLC)；With
And
Signal transmitting unit is handled, is sent for controlling the programmable logic controller (PLC) according to the quality measurements
Signal is handled to the non-defective unit discharge component or the defective products sorting component, to carry out accordingly to the microsprings to be measured
Processing.
The present invention provides a kind of quality detecting system of microsprings, which includes cabinet and is mounted on cabinet
Loading assemblies, manipulator take-off assembly, detection components, defective products sorting component and non-defective unit discharge component, further include and detect
The visual detection equipment of component connection and with loading assemblies, manipulator take-off assembly, detection components, defective products sorting component, good
The programmable logic controller (PLC) that product discharge component and visual detection equipment are separately connected, the present invention, which works as to receive, treats micrometer type
When spring carries out the request of quality testing, firstly, control detection camera, which is treated, surveys microsprings progress spring Image Acquisition, so
Afterwards, control visual detection equipment carries out product identification and size detection to collected spring image, obtains miniature bullet to be measured
The quality measurements are sent to programmable logic controller (PLC) by the quality measurements of spring, finally, control programmable logic control
Device processed sends processing signal to non-defective unit discharge component or defective products sorting component, to treat micrometer type according to quality measurements
Spring performs corresponding processing, to improve the degree of automation of microsprings quality testing, and then improves quality testing
Efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the quality detecting system for the microsprings that the embodiment of the present invention one provides；
Fig. 2 is the topology example figure of the quality detecting system for the microsprings that the embodiment of the present invention one provides；
Fig. 3 is the implementation flow chart of the quality determining method of microsprings provided by Embodiment 2 of the present invention；
Fig. 4 is the structural schematic diagram of the quality detection device for the microsprings that the embodiment of the present invention three provides；And
Fig. 5 is the preferred structure schematic diagram of the quality detection device for the microsprings that the embodiment of the present invention three provides.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Specific implementation of the invention is described in detail below in conjunction with specific embodiment:
Embodiment one:
Fig. 1 shows the structure of the quality detecting system of the microsprings of the offer of the embodiment of the present invention one, for the ease of saying
Bright, only parts related to embodiments of the present invention are shown.
The embodiment of the invention provides a kind of quality detecting system of microsprings, which includes cabinet
11, loading assemblies 12, manipulator take-off assembly 13, detection components 14, defective products sorting component 15, non-defective unit discharge component 16, view
Feel detection device 17 and programmable logic controller (PLC) 18, in which:
Cabinet 11 is for the various components in the quality detecting system of support microsprings.
Loading assemblies 12 are mounted on cabinet 11, and loading assemblies 12 are made of vibrating disk 121 and straight vibration 122, vibrating disk 121
For arranging microsprings to be measured by preset direction, the microsprings to be measured that straight vibration 122 is used to arrange are in order
It discharges one by one.
Manipulator take-off assembly 13 is mounted on cabinet 11, and manipulator take-off assembly 13 is by optical fiber 131, mechanical arm in place
132, lifting cylinder 133, flat-removing air cyclinder 134, feeding cylinder 135, feeding finger 136, sorting cylinder 137 and sorting finger
The microsprings to be measured of acquirement for carrying out feeding from preset feeding position, and are placed on preset check bit by 138 compositions.
Specifically, after optical fiber 131 senses that spring product reaches preset feeding position in place, Crush trigger arm 132 starts feeding
Movement, firstly, control flat-removing air cyclinder 134 is moved to feeding position, after reaching feeding position, control lifting cylinder 133 drops to feeding
Position, and control feeding cylinder 135 and clamp feeding finger 136, spring product is caught, then, is controlled on lifting cylinder 133
It rises, then controls flat-removing air cyclinder 134 and moved to preset check bit, after flat-removing air cyclinder 134 reaches check bit, control lifting cylinder
133 declines, after lifting cylinder 133 drops to check bit, control feeding cylinder 135 unclamps feeding finger 136, by spring product
It is put on check bit, finally, control sorting cylinder 137 clamps sorting finger 138 in feeding position feeding action next time, with
Spring product after the completion of will test is caught, and in check bit blowing action next time, control sorting cylinder 137 unclamps sorting hand
Refer to 138, is put down with the spring product that will test.
Detection components 14 are mounted on cabinet 11, and detection components 14 are by detection camera 141, detection light source 142 and detection
Bracket 143 forms, for being taken pictures by detecting camera 141 to the microsprings to be measured for being placed on check bit.
Defective products sorting component 15 is mounted on cabinet 11, and defective products sorting component 15 is by defective products processing cylinder 151, no
Non-defective unit discharging sliding rail 152 and defective products pulp-collecting box 153 form, and are handled for treating the defective products surveyed in microsprings.
Specifically, control defective products processing cylinder 151 moves to preset sorting position, and control sorting cylinder 137 unclamps sorting finger
138, after defective products is put into sorting position, control defective products processing cylinder 151 shifts defective products onto defective products discharging sliding rail 152
On, defective products slips down in defective products pulp-collecting box 153 along defective products discharging sliding rail 152.
Non-defective unit discharge component 16 is mounted on cabinet 11, and non-defective unit discharge component 16 is by non-defective unit discharging sliding rail 161, Blow off module
162 and non-defective unit pulp-collecting box 163 form, for treat survey microsprings in non-defective unit handled.Specifically, defective products is controlled
Processing cylinder 151 moves to overstepping one's bounds bit selecting, and control sorting cylinder 137 unclamps sorting finger 138, after non-defective unit is put into sorting position,
Control Blow off module 162 blows to non-defective unit on non-defective unit discharging sliding rail 161, and non-defective unit slips down to non-defective unit along non-defective unit discharging sliding rail 161
In pulp-collecting box 163.
Visual detection equipment 17 is connect with detection components 14, for the microsprings to be measured shot by detection components 14
Photo carries out product identification.
Programmable logic controller (PLC) 18 and loading assemblies 12, manipulator take-off assembly 13, detection components 14, defective products sort
Component 15, non-defective unit discharge component 16 and visual detection equipment 17 connect, for receiving the identification of the output of visual detection equipment 17
As a result, and discharging to loading assemblies 12, manipulator take-off assembly 13, detection components 14, defective products sorting component 15 and non-defective unit
Component 16 is controlled.
Preferably, detection light source 142 is backlight, to reduce ambient to the quality detecting systems of microsprings
Interference, and then improve detection accuracy.
It is another that preferably Blow off module 162 is made of solenoid valve and tracheae, so that the processing speed to non-defective unit is improved, into
And improve whole detection efficiency.
Preferably, defective products discharging sliding rail 152 and non-defective unit discharging sliding rail 161 all in accordance with preset angle tilt in cabinet table
Face installation to improve the speed of discharging, and then improves whole detection efficiency.
Microsprings quality as illustratively, Fig. 2 shows the structure chart of a microsprings quality detecting system, in figure
Detection system includes the loading assemblies 1 being made of vibrating disk 11 and straight vibration 12, by optical fiber 21 in place, mechanical arm 22, lifting air
The manipulator that cylinder 23, flat-removing air cyclinder 24, feeding cylinder 25, feeding finger 26, sorting cylinder 27 and sorting finger 28 form takes
Expect component 2, the detection components 3 being made of detection camera 31, detection light source 32 and detection support 33 handle cylinder by defective products
41, defective products discharging sliding rail 42 and defective products pulp-collecting box 43 form defective products sorting component 4, by non-defective unit discharging sliding rail 51,
The non-defective unit discharge component 5 that Blow off module 52 and non-defective unit pulp-collecting box 53 form further includes cabinet 6, visual detection equipment 7 and can
Programmed logic controller 8, wherein programmable logic controller (PLC) 8 is taken by wired or wireless mode and loading assemblies 1, manipulator
Material component 2, detection components 3, defective products sorting component 4, non-defective unit discharge component 5 and visual detection equipment 7 are separately connected, these
Component is corresponding identical as the function of component shown in Fig. 1, and details are not described herein.
The embodiment of the invention provides a kind of quality detecting system of microsprings, which includes cabinet and is mounted on machine
Loading assemblies, manipulator take-off assembly, detection components, defective products sorting component and non-defective unit discharge component on cabinet further include
The visual detection equipment that is connect with detection components and with loading assemblies, manipulator take-off assembly, detection components, defective products sorting group
The programmable logic controller (PLC) that part, non-defective unit discharge component and visual detection equipment are separately connected, the embodiment of the present invention is when reception
To when treating the request for surveying microsprings progress quality testing, spring is carried out firstly, controlling detection camera and treating survey microsprings
Image Acquisition, then, control visual detection equipment carry out product identification and size detection to the spring image collected, obtain
To the quality measurements of microsprings to be measured, which is sent to programmable logic controller (PLC), finally, control
Programmable logic controller (PLC) sends processing signal to non-defective unit discharge component or defective products sorting group according to the quality measurements
Part is performed corresponding processing with treating survey microsprings, to improve the degree of automation of microsprings quality testing, in turn
The efficiency of quality testing is improved, and reduces time cost and cost of labor.
Embodiment two:
Fig. 3 shows the implementation process of the quality determining method of microsprings provided by Embodiment 2 of the present invention, this is miniature
The quality detecting system of microsprings of the quality determining method of spring suitable for embodiment one only shows for ease of description
Go out part related to the embodiment of the present invention, details are as follows:
In step S301, when receiving the request for treating survey microsprings progress quality testing, control detection camera
Spring Image Acquisition is carried out to the microsprings to be measured for being placed on check bit.
The quality detecting system of microsprings of the embodiment of the present invention suitable for embodiment one, to treat survey microsprings
Quality detected, the system include cabinet and be mounted on cabinet loading assemblies, manipulator take-off assembly, detection group
Part, defective products sorting component and non-defective unit discharge component further include the visual detection equipment connecting with detection components and and feeding
Component, manipulator take-off assembly, detection components, defective products sorting component, non-defective unit discharge component and visual detection equipment difference
The programmable logic controller (PLC) of connection.
In embodiments of the present invention, when microsprings to be measured are placed on check bit, the detection phase of detection trigger component
Machine takes pictures to the microsprings to be measured on the check bit, and acquires spring image.
In step s 302, control visual detection equipment by collected spring image and in advance obtain, check bit without
Background image when product carries out residual noise reduction, obtains the corresponding residual image of spring image, and residual image is carried out gray scale
Change processing, to obtain corresponding gray level image.
In embodiments of the present invention, by visual detection equipment to collected spring image carry out residual noise reduction it
Before, it is preferable that the background image in the case that the check bit does not place product and has light source is obtained, to improve to spring figure
Effect as carrying out residual noise reduction.
In step S303, gray level image is carried out using contours extract algorithm and minimum circumscribed rectangle algorithm minimum outer
Rectangular extraction is connect, the location information of microsprings to be measured is obtained.
In embodiments of the present invention, it is preferable that according to pre-set fixed threshold, using contours extract algorithm and most
Small bounding rectangle algorithms carry out minimum circumscribed rectangle extraction to gray level image, to improve the significant of gray level image contour feature
Property, and then improve the accuracy that minimum circumscribed rectangle is extracted.
Minimum circumscribed rectangle extraction is being carried out to gray level image using contours extract algorithm and minimum circumscribed rectangle algorithm
When, it is preferable that firstly, to gray level image carry out image local enhancing processing and keep away position processing, with obtain it is corresponding keep away bit image,
Then, bit image will be kept away and carry out image binaryzation processing, to obtain corresponding binary image, then binary image is subjected to figure
As corrosion treatment, to obtain corresponding corrosion image, later, image outline inspection is carried out to corrosion image by contours extract algorithm
It surveys, and quadrangle process of fitting treatment is carried out to the area largest contours detected using minimum circumscribed rectangle algorithm, obtain outside minimum
The coordinate on four vertex of rectangle is connect, finally, obtaining determining for microsprings to be measured according to the coordinate on four vertex of minimum circumscribed rectangle
Position information, to improve the accuracy of minimum circumscribed rectangle extraction.
When carrying out image local enhancing processing to gray level image, it is further preferred that the pixel value of traversal gray level image,
When pixel value is greater than or equal to preset designated value, which is increased into preset enhancement value, is specified when pixel value is less than
When value, which is set to 0, to improve the contour feature of image.
In step s 304, microsprings to be measured are determined with the presence or absence of defect, to obtain pair according to the location information of acquisition
The quality measurements answered, and the quality measurements are sent to programmable logic controller (PLC).
In embodiments of the present invention, the location information according to acquisition determine microsprings to be measured with the presence or absence of defect it
Before, it is preferable that judge whether location information obtains success, when location information obtains successfully, then according to the location information of acquisition
Determine otherwise microsprings to be measured set no product for the quality measurements of microsprings to be measured, obtain with the presence or absence of defect
It is sent to programmable logic controller (PLC) to corresponding quality measurements, and by the quality measurements, is treated to improve
The success rate of micrometer type spring-mass detection.
In embodiments of the present invention, when the location information according to acquisition determines microsprings to be measured with the presence or absence of defect,
Preferably, firstly, calculating the width and height of minimum circumscribed rectangle according to location information, which is microsprings to be measured
Length, which is the outside diameter of microsprings to be measured, then, by obtained length and pre-set microsprings mark
Standard length is compared, and obtained outside diameter is compared with pre-set microsprings standard outside diameter, most
Afterwards, when the difference of length and microsprings full-length is more than outside the first length range or outside diameter and microsprings standard
When the difference of circular diameter is more than the second length range, it is determined that there are the bad defect of length or outer circles for microsprings to be measured
The bad defect of diameter, and defective products is set by the quality measurements of microsprings to be measured, otherwise, it determines microsprings to be measured
There is no defects, and set non-defective unit for the quality measurements of microsprings to be measured, obtain corresponding quality measurements, and
The quality measurements are sent to programmable logic controller (PLC).By by the size of microsprings to be measured and preset gauge
It is very little to be compared, to improve the accuracy for treating the detection of micrometer type spring-mass, and then improve the success of quality testing
Rate.
In step S305, control programmable logic controller (PLC) sends processing signal according to quality measurements and goes out to non-defective unit
Expect component or defective products sorting component, is performed corresponding processing with treating survey microsprings.
In embodiments of the present invention, it when quality measurements are defective products, controls at programmable logic controller (PLC) transmission
Reason signal gives defective products sorting component, microsprings to be measured is placed into defective products pulp-collecting box, when quality measurements are
When non-defective unit, control programmable logic controller (PLC) sends processing signal and gives non-defective unit discharge component, and microsprings to be measured are placed into
In non-defective unit pulp-collecting box.
In embodiments of the present invention, when receiving the request for treating survey microsprings progress quality testing, firstly, control
Detection camera, which is treated, surveys microsprings progress spring Image Acquisition, then, controls visual detection equipment to collected spring figure
As carrying out product identification and size detection, the quality measurements of microsprings to be measured are obtained, which is sent out
Give programmable logic controller (PLC), finally, control programmable logic controller (PLC) according to quality measurements send processing signal to
Non-defective unit discharge component or defective products sorting component are performed corresponding processing with treating survey microsprings, to improve miniature
The degree of automation of spring-mass detection, and then the efficiency of quality testing is improved, and reduce time cost and cost of labor.
Embodiment three:
Fig. 4 shows the structure of the quality detection device of the microsprings of the offer of the embodiment of the present invention three, the microsprings
The quality detecting systems of microsprings of the quality detection device suitable for embodiment one illustrate only for ease of description
Part related to the embodiment of the present invention, including:
Image acquisition units 41, for when receiving the request for treating survey microsprings progress quality testing, control to be examined
It surveys camera and spring Image Acquisition is carried out to the microsprings to be measured for being placed on check bit.
The quality detecting system of microsprings of the embodiment of the present invention suitable for embodiment one, to treat survey microsprings
Quality detected, the system include cabinet and be mounted on cabinet loading assemblies, manipulator take-off assembly, detection group
Part, defective products sorting component and non-defective unit discharge component further include the visual detection equipment connecting with detection components and and feeding
Component, manipulator take-off assembly, detection components, defective products sorting component, non-defective unit discharge component and visual detection equipment difference
The programmable logic controller (PLC) of connection.
In embodiments of the present invention, when microsprings to be measured are placed on check bit, the detection phase of detection trigger component
Machine takes pictures to the microsprings to be measured on the check bit, and acquires spring image.
Image processing unit 42, for controlling visual detection equipment for collected spring image and obtain in advance, inspection
Background image when location is without product carries out residual noise reduction, obtains the corresponding residual image of spring image, and by residual image into
Row gray processing processing, to obtain corresponding gray level image.
In embodiments of the present invention, by visual detection equipment to collected spring image carry out residual noise reduction it
Before, it is preferable that the background image in the case that the check bit does not place product and has light source is obtained, to improve to spring figure
Effect as carrying out residual noise reduction.
Location information acquiring unit 43, for using contours extract algorithm and minimum circumscribed rectangle algorithm to gray level image
Minimum circumscribed rectangle extraction is carried out, the location information of microsprings to be measured is obtained.
In embodiments of the present invention, it is preferable that according to pre-set fixed threshold, using contours extract algorithm and most
Small bounding rectangle algorithms carry out minimum circumscribed rectangle extraction to gray level image, to improve the significant of gray level image contour feature
Property, and then improve the accuracy that minimum circumscribed rectangle is extracted.
Minimum circumscribed rectangle extraction is being carried out to gray level image using contours extract algorithm and minimum circumscribed rectangle algorithm
When, it is preferable that firstly, to gray level image carry out image local enhancing processing and keep away position processing, with obtain it is corresponding keep away bit image,
Then, bit image will be kept away and carry out image binaryzation processing, to obtain corresponding binary image, then binary image is subjected to figure
As corrosion treatment, to obtain corresponding corrosion image, later, image outline inspection is carried out to corrosion image by contours extract algorithm
It surveys, and quadrangle process of fitting treatment is carried out to the area largest contours detected using minimum circumscribed rectangle algorithm, obtain outside minimum
The coordinate on four vertex of rectangle is connect, finally, obtaining determining for microsprings to be measured according to the coordinate on four vertex of minimum circumscribed rectangle
Position information, to improve the accuracy of minimum circumscribed rectangle extraction.
When carrying out image local enhancing processing to gray level image, it is further preferred that the pixel value of traversal gray level image,
When pixel value is greater than or equal to preset designated value, which is increased into preset enhancement value, is specified when pixel value is less than
When value, which is set to 0, to improve the contour feature of image.
Defect determination unit 44 determines that microsprings to be measured whether there is defect for the location information according to acquisition, with
Corresponding quality measurements are obtained, and the quality measurements are sent to programmable logic controller (PLC).
In embodiments of the present invention, the location information according to acquisition determine microsprings to be measured with the presence or absence of defect it
Before, it is preferable that judge whether location information obtains success, when location information obtains successfully, then according to the location information of acquisition
Determine otherwise microsprings to be measured set no product for the quality measurements of microsprings to be measured, obtain with the presence or absence of defect
It is sent to programmable logic controller (PLC) to corresponding quality measurements, and by the quality measurements, is treated to improve
The success rate of micrometer type spring-mass detection.
In embodiments of the present invention, when the location information according to acquisition determines microsprings to be measured with the presence or absence of defect,
Preferably, firstly, calculating the width and height of minimum circumscribed rectangle according to location information, which is microsprings to be measured
Length, which is the outside diameter of microsprings to be measured, then, by obtained length and pre-set microsprings mark
Standard length is compared, and obtained outside diameter is compared with pre-set microsprings standard outside diameter, most
Afterwards, when the difference of length and microsprings full-length is more than outside the first length range or outside diameter and microsprings standard
When the difference of circular diameter is more than the second length range, it is determined that there are the bad defect of length or outer circles for microsprings to be measured
The bad defect of diameter, and defective products is set by the quality measurements of microsprings to be measured, otherwise, it determines microsprings to be measured
There is no defects, and set non-defective unit for the quality measurements of microsprings to be measured, obtain corresponding quality measurements, and
The quality measurements are sent to programmable logic controller (PLC).By by the size of microsprings to be measured and preset gauge
It is very little to be compared, to improve the accuracy for treating the detection of micrometer type spring-mass, and then improve the success of quality testing
Rate.
Information transmitting unit 45 is handled, sends processing letter according to quality measurements for controlling programmable logic controller (PLC)
Number give non-defective unit discharge component or defective products sorting component, with treat survey microsprings perform corresponding processing.
In embodiments of the present invention, it when quality measurements are defective products, controls at programmable logic controller (PLC) transmission
Reason signal gives defective products sorting component, microsprings to be measured is placed into defective products pulp-collecting box, when quality measurements are
When non-defective unit, control programmable logic controller (PLC) sends processing signal and gives non-defective unit discharge component, and microsprings to be measured are placed into
In non-defective unit pulp-collecting box.
Wherein, as shown in Figure 5, it is preferable that location information acquiring unit 43 includes:
Enhancing keeps away bit processing unit 431, for carrying out image local enhancing processing to gray level image and keeping away position processing, with
Bit image is kept away to corresponding；
Binary conversion treatment unit 432 carries out image binaryzation processing for that will keep away bit image, to obtain corresponding binaryzation
Image；
Corrosion treatment unit 433, for binary image to be carried out Image erosion processing, to obtain corresponding etch figures
Picture；
Coordinate obtaining unit 434 for carrying out image outline detection to corrosion image by contours extract algorithm, and uses
Minimum circumscribed rectangle algorithm carries out quadrangle process of fitting treatment to the area largest contours detected, obtains minimum circumscribed rectangle four
The coordinate on vertex；And
Acquisition of information subelement 435 obtains microsprings to be measured for the coordinate according to four vertex of minimum circumscribed rectangle
Location information.
Defect determination unit 44 includes:
Dimension calculating unit 441, for calculating the length and outside diameter of microsprings to be measured according to location information；
Size comparing unit 442, for carrying out the length being calculated and pre-set microsprings full-length
Compare, and the outside diameter being calculated is compared with pre-set microsprings standard outside diameter；And
Defect determines subelement 443, for being more than the first length range when the difference of length and microsprings full-length
Or the difference of outside diameter and microsprings standard outside diameter determines that microsprings to be measured are deposited when being more than the second length range
In defect, otherwise, it determines defect is not present in microsprings to be measured, corresponding quality measurements are obtained, and by the quality testing
As a result it is sent to programmable logic controller (PLC).
In embodiments of the present invention, each unit of the quality detection device of microsprings can be by corresponding hardware or software list
Member realizes that each unit can be independent soft and hardware unit, also can integrate as a soft and hardware unit, herein not to limit
The system present invention.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of quality detecting system of microsprings, which is characterized in that the system comprises:
Cabinet, for the various components in the quality detecting system of support microsprings；
The loading assemblies being mounted on the cabinet, the loading assemblies are made of vibrating disk and straight vibration, and the vibrating disk is used for
Microsprings to be measured are arranged by preset direction, the to be measured microsprings of the straight vibration for will arrange are in order
It discharges；
The manipulator take-off assembly being mounted on the cabinet, the manipulator take-off assembly is by optical fiber in place, mechanical arm, liter
Sending down abnormally ascending cylinder, flat-removing air cyclinder, feeding cylinder, feeding finger, sorting cylinder and sorting finger composition, are used for from preset feeding position
Feeding is carried out, and the microsprings to be measured of acquirement are placed on preset check bit；
The detection components being mounted on the cabinet, the detection components are by detection camera, detection light source and detection support group
At for taking pictures to the microsprings to be measured for being placed on the check bit；
The defective products sorting component being mounted on the cabinet, the defective products sorting component is by defective products processing cylinder, bad
Product discharging sliding rail and defective products pulp-collecting box composition, for handling the defective products in the microsprings to be measured；
The non-defective unit discharge component being mounted on the cabinet, the non-defective unit discharge component by non-defective unit discharging sliding rail, Blow off module with
And non-defective unit pulp-collecting box composition, for handling the non-defective unit in the microsprings to be measured；
The visual detection equipment being connect with the detection components, for the microsprings to be measured shot by detection components
Photo carries out product identification；And
With loading assemblies, the manipulator take-off assembly, the detection components, the defective products sorting component, described good
Product discharge component and the programmable logic controller (PLC) of visual detection equipment connection, for receiving the visual detection equipment
The recognition result of output, and to the loading assemblies, the manipulator take-off assembly, the detection components, the defective products point
Component and the non-defective unit discharge component is selected to be controlled.
2. the quality detecting system of microsprings as described in claim 1, which is characterized in that the detection light source is backlight.
3. the quality detecting system of microsprings as described in claim 1, which is characterized in that the Blow off module by solenoid valve and
Tracheae composition.
4. the quality detecting system of microsprings as described in claim 1, which is characterized in that the defective products discharging sliding rail inclination
It is installed in cabinet surface, the non-defective unit discharging sliding rail favours the installation of cabinet surface.
5. a kind of quality determining method of the quality detecting system based on any microsprings of claim 1-4, feature
It is, the method includes the following steps:
When receive treat survey microsprings and carry out the request of quality testing when, control the detection camera to being placed on the inspection
The microsprings to be measured of location carry out spring Image Acquisition；
When controlling the check bit that the visual detection equipment is obtained by the collected spring image and in advance, described without product
Background image carry out residual noise reduction, obtain the corresponding residual image of the spring image, and the residual image is subjected to ash
Degreeization processing, to obtain corresponding gray level image；
Minimum circumscribed rectangle extraction is carried out to the gray level image using contours extract algorithm and minimum circumscribed rectangle algorithm, is obtained
Take the location information of the microsprings to be measured；
The microsprings to be measured are determined with the presence or absence of defect, to obtain corresponding quality inspection according to the location information of acquisition
It surveys as a result, and the quality measurements are sent to the programmable logic controller (PLC)；
It controls the programmable logic controller (PLC) and sends processing signal to the non-defective unit discharging group according to the quality measurements
Part or the defective products sorting component, to be performed corresponding processing to the microsprings to be measured.
6. method as claimed in claim 5, which is characterized in that use contours extract algorithm and minimum circumscribed rectangle algorithm pair
The gray level image carries out the step of minimum circumscribed rectangle extraction, comprising:
Image local enhancing processing is carried out to the gray level image and keeps away position processing, to obtain corresponding keeping away bit image；
The bit image of keeping away is subjected to image binaryzation processing, to obtain corresponding binary image；
The binary image is subjected to Image erosion processing, to obtain corresponding corrosion image；
Image outline detection is carried out to the corrosion image by contours extract algorithm, and uses the minimum circumscribed rectangle algorithm
Quadrangle process of fitting treatment is carried out to the area largest contours detected, obtains the coordinate on four vertex of minimum circumscribed rectangle；
According to the coordinate on four vertex of minimum circumscribed rectangle, the location information of the microsprings to be measured is obtained.
7. method as claimed in claim 5, which is characterized in that determined according to the location information of acquisition described to be measured miniature
Spring whether there is defect, to obtain corresponding quality measurements, and the quality measurements are sent to described can compile
The step of journey logic controller, comprising:
The length and outside diameter of the microsprings to be measured are calculated according to the location information；
The institute that the length being calculated is compared with pre-set microsprings full-length, and will be calculated
Outside diameter is stated to be compared with pre-set microsprings standard outside diameter；
When the difference of the length and the microsprings full-length be more than the first length range or the outside diameter and
When the difference of the microsprings standard outside diameter is more than the second length range, determines that the microsprings to be measured exist and lack
It falls into, otherwise, it determines defect is not present in the microsprings to be measured, obtains corresponding quality measurements, and the quality is examined
It surveys result and is sent to the programmable logic controller (PLC).
8. a kind of quality detection device of the quality detecting system based on any microsprings of claim 1-4, feature
It is, described device includes:
Image acquisition units, for controlling the detection when receiving the request for treating survey microsprings progress quality testing
Camera carries out spring Image Acquisition to the microsprings to be measured for being placed on the check bit；
Image processing unit, for control the visual detection equipment by the collected spring image with it is in advance obtaining,
The background image when check bit is without product carries out residual noise reduction, obtains the corresponding residual image of the spring image, and will
The residual image carries out gray processing processing, to obtain corresponding gray level image；
Location information acquiring unit, for using contours extract algorithm and minimum circumscribed rectangle algorithm to the gray level image into
Row minimum circumscribed rectangle is extracted, and the location information of the microsprings to be measured is obtained；
Defect determination unit determines that the microsprings to be measured whether there is defect for the location information according to acquisition,
To obtain corresponding quality measurements, and the quality measurements are sent to the programmable logic controller (PLC)；And
Signal transmitting unit is handled, is handled for controlling the programmable logic controller (PLC) according to the quality measurements transmission
Signal gives the non-defective unit discharge component or the defective products sorting component, to be located accordingly to the microsprings to be measured
Reason.
9. device as claimed in claim 8, which is characterized in that the location information acquiring unit includes:
Enhancing keeps away bit processing unit, for carrying out image local enhancing processing to the gray level image and keeping away position processing, to obtain
It is corresponding to keep away bit image；
Binary conversion treatment unit, for the bit image of keeping away to be carried out image binaryzation processing, to obtain corresponding binary picture
Picture；
Corrosion treatment unit, for the binary image to be carried out Image erosion processing, to obtain corresponding corrosion image；
Coordinate obtaining unit for carrying out image outline detection to the corrosion image by contours extract algorithm, and uses institute
It states minimum circumscribed rectangle algorithm and quadrangle process of fitting treatment is carried out to the area largest contours detected, obtain the external square of minimum
The coordinate on four vertex of shape；And
Acquisition of information subelement obtains the miniature bullet to be measured for the coordinate according to four vertex of minimum circumscribed rectangle
The location information of spring.
10. device as claimed in claim 8, which is characterized in that the defect determination unit further include:
Dimension calculating unit, for calculating the length and outside diameter of the microsprings to be measured according to the location information；
Size comparing unit, for comparing the length being calculated and pre-set microsprings full-length
Compared with, and the outside diameter being calculated is compared with pre-set microsprings standard outside diameter；And
Defect determines subelement, for being more than the first length range when the difference of the length and the microsprings full-length
Or the difference of the outside diameter and the microsprings standard outside diameter is when being more than the second length range, determine it is described to
Microsprings existing defects are surveyed, otherwise, it determines defect is not present in the microsprings to be measured, obtain corresponding quality testing knot
Fruit, and the quality measurements are sent to the programmable logic controller (PLC).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810317435.7A CN108993917A (en) | 2018-04-10 | 2018-04-10 | A kind of quality detecting system of microsprings, method and device |
| PCT/CN2018/083134 WO2019196126A1 (en) | 2018-04-10 | 2018-04-15 | Quality detection system, method and apparatus for micro spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810317435.7A CN108993917A (en) | 2018-04-10 | 2018-04-10 | A kind of quality detecting system of microsprings, method and device |
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| CN108993917A true CN108993917A (en) | 2018-12-14 |
Family
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| CN201810317435.7A Pending CN108993917A (en) | 2018-04-10 | 2018-04-10 | A kind of quality detecting system of microsprings, method and device |
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| CN (1) | CN108993917A (en) |
| WO (1) | WO2019196126A1 (en) |
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| CN110560610A (en) * | 2019-09-24 | 2019-12-13 | 浙江华剑智能装备股份有限公司 | Device and method for transporting strings of pocketed springs |
| CN111669511A (en) * | 2019-03-09 | 2020-09-15 | 上海太同弹簧有限公司 | Spring production system capable of being remotely monitored and method thereof |
| CN112326653A (en) * | 2019-08-05 | 2021-02-05 | 上海嘉励自动化科技有限公司 | Spring positive and negative detection vision system |
| CN114798492A (en) * | 2022-05-06 | 2022-07-29 | 杭州卓易特科技有限公司 | Spring detection equipment |
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| CN115945404A (en) * | 2023-02-15 | 2023-04-11 | 苏州天准科技股份有限公司 | Defect detection equipment and detection method |
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| WO2019196126A1 (en) | 2019-10-17 |
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