CN202182866U - Detection device for workpiece appearance defects - Google Patents
Detection device for workpiece appearance defects Download PDFInfo
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- CN202182866U CN202182866U CN2011203332890U CN201120333289U CN202182866U CN 202182866 U CN202182866 U CN 202182866U CN 2011203332890 U CN2011203332890 U CN 2011203332890U CN 201120333289 U CN201120333289 U CN 201120333289U CN 202182866 U CN202182866 U CN 202182866U
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- open defect
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Abstract
The utility model discloses a detection device for workpiece appearance defects, which belongs to the technical field of workpiece appearance defect detection and comprises a detection platform and an image system. The image system comprises an auxiliary light source, an image optic lens group and a camera, wherein the camera is connected with a computer with an image collection system. The detection platform comprises a transparent horizontal rotary working platform. The image system comprises an upper image system and a lower image system, wherein the upper image system is arranged the inclined upper position of the detection platform, and the lower image system is positioned under the transparent rotary work platform. The detection device for workpiece appearance defects is simple in structure, convenient to operate, high in detection efficiency and especially suitable for appearance detection occasions of all surface of annular workpieces produced in batch mode.
Description
Technical field
The utility model relates to a kind of workpiece open defect pick-up unit, especially relates to a kind of to annular workpieces open defect pick-up unit.
Background technology
Open defect for the annular workpieces all surface detects the general manual method that adopts, such as, magnifier or microexamination are perhaps adopted in artificial visual check, and this inspection method efficient is lower, can not satisfy the demand of inspection in batches.China utility model patent ZL200520048185.X; Invention and created name is " a kind of bonding rare earth magnet appearance defect image automatic tester "; Its technical scheme is once to comprise feed mechanism, first testing agency, inversion mechanism, second testing agency and conveying mechanism according to workflow; Said first testing agency comprises first gearshift, first image system and first detection platform; Said second testing agency comprises second gearshift, second image system and second detection platform; Said conveying mechanism is a conveying belt; Said first, second image system comprises secondary light source, image optics mirror group and high-speed CCD camera respectively, and said camera is connected with the computing machine that has image pick-up card, and said image system is separately positioned on the top of detection platform.Though this device can be realized automatic detection, be switching mechanism owing to there is inversion mechanism, make and detect very complicacy of operation that detection efficiency is low.
The utility model content
The purpose of the utility model has been to provide a kind of workpiece switching mechanism of cancelling still can realize each surface of workpiece is detected, and the workpiece open defect pick-up unit that operation is simple, efficient, robotization detects.
The technical scheme of the utility model is: a kind of workpiece open defect pick-up unit; Comprise detection platform; And image system; Said image system comprises secondary light source, image optics mirror group and camera, and said camera is connected with the computing machine that has image capturing system, and said detection platform comprises transparent horizontal rotary table; Said image system comprises image system and following image system, and wherein, last image system is positioned at the oblique upper of detection platform, and following image system is positioned at the below of transparent horizontal rotary table.
Said transparent horizontal rotary table drives through motor synchronous.
The said image system of going up comprises at least two image systems.Be convenient to workpiece is carried out the image collection of different azimuth.
On the said transparent horizontal rotary table centralizer is housed.Said centralizer is used for the clamping workpiece for measurement.
Said centralizer comprises round base; The lower end of said pedestal is provided with the circular mounting hole; The upper end of said pedestal is provided with at least 3 positioning tooths, and said each positioning tooth is extended to the center by susceptor edges, and the crown of all positioning tooths coexists on the circumference on the pedestal; The centering diameter of a circle that the crown of said positioning tooth forms is suitable with the external diameter of waiting to press from both sides workpiece, and said centering circle is concentric with said circular mounting hole.
The upper surface of said positioning tooth is the inclined-plane, and promptly the tooth root of positioning tooth is to the attenuation gradually of crown thickness.This architectural feature can be when gathering the workpiece image, reduces positioning tooth to the blocking of workpiece short transverse, and also is convenient to workpiece simultaneously and slips in the internal point.
The tooth root of said positioning tooth narrows down to the crown width gradually.This architectural feature can reduce positioning tooth blocking the workpiece circumferencial direction when gathering the workpiece image.
The lower surface of said positioning tooth flushes.This architectural feature is the outward appearance that this positioning fixture easy to use detects workpiece.
A kind of as preferably, chamfering is being located near excircle of workpiece week in the upper surface of said positioning tooth crown and/or lower surface.Not only can reduce anchor clamps to the blocking of corner angle outside the workpiece lower surface, and the surface of contact of minimizing and workpiece, scratch workpiece outside surface avoided.
Be provided with the breach of being convenient to image collection between every adjacent positioned tooth on the said round base.This architectural feature can be so that positioning tooth can not block workpiece when gathering the workpiece image.
A kind of as preferably, said positioning tooth evenly distributes around the pedestal center.This distribution equalizing structure can be so that make simpler.Be evenly distributed with 4 positioning tooths on the said pedestal, be convenient to workpiece is felt relieved fast.
The work of said computer control image acquisition system and the action of transparent horizontal rotary table.
The diameter of a circle that the crown of said positioning tooth forms is less than the diameter in said circular mounting hole.This architectural feature is to be convenient to the surface of further carrying out that workpiece is put in behind the centralizer detect.
The detection method of the said sunken pick-up unit of the utility model comprises the steps:
A, workpiece for measurement is put on the transparent horizontal rotary table of the centering circle that the crown of positioning tooth described in the centralizer forms;
B, computing machine send instruction, said transparent horizontal rotary table rotation, and workpiece for measurement is along with transparent horizontal rotary table rotation;
C, computing machine send instruction, said upper surface, internal circular surfaces and the outer round surface that image system is taken workpiece for measurement, the image of acquisition workpiece upper surface, internal circular surfaces and outer round surface shooting area gone up; Said image system is down taken the lower surface of workpiece for measurement, obtains the image of workpiece lower surface shooting area;
D, said image handle and obtain result through image capturing system in the computing machine, thereby the open defect of accomplishing the workpiece all surface detects.
The utility model compared with prior art has following technique effect: the described pick-up unit of the utility model is simple in structure, be convenient to operation, detect reliable; Be suitable for producing in enormous quantities the detection of workpiece; Because pick-up unit has used transparent rotary table cleverly; Need not again the workpiece upset can be realized the detection of workpiece lower surface, improved detection efficiency.The detection method of the said pick-up unit of the utility model is very simple, and workpiece is placed on monitor station, only needs to give instruction of computing machine, need not the workpiece upset can realize the defects detection to all surface of workpiece, and detection efficiency is high.
Description of drawings
The utility model will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the perspective view of the said pick-up unit of the utility model;
Fig. 2 is the structural representation of centralizer among Fig. 1;
Fig. 3 is an A-A cut-open view among Fig. 2;
Fig. 4 is the perspective view of centralizer among Fig. 1;
Reference numeral is following, and 1 is pedestal, and 2 is positioning tooth, and 101 is the circular mounting hole; 102 is breach, and 201 is the circle of the pointed one-tenth of positioning tooth, and 202 is the inclined-plane, and 203 is tooth root; 204 is crown, and 205 is the lower surface of positioning tooth, and 3 is transparent horizontal rotary table, and 4 is camera; 5 is secondary light source, and 6 is detection platform, and 7 is centralizer.
Embodiment
Disclosed all characteristics in this instructions, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this instructions (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
Like Fig. 1 and shown in Figure 4; A kind of workpiece open defect pick-up unit comprises detection platform 6, and image system; Said image system comprises secondary light source 5, image optics mirror group and camera 4; Said camera 4 is connected with the computing machine that has image capturing system, and said detection platform 6 is provided with transparent horizontal rotary table 3, and transparent horizontal rotary table 3 adopts disc-shaped structure in the present embodiment.Transparent horizontal rotary table 3 is rotated by driven by motor.Centralizer 7 is housed on the detection platform 6, and the circular mounting hole 101 of centralizer 7 is coaxial with transparent horizontal rotary table 3; Said image system comprises image system and following image system, and wherein, last image system is positioned at the oblique upper of detection platform, and following image system is positioned at the below of transparent rotary table.The said image system of going up comprises two image systems, and each image system comprises image optics mirror group, camera and suitable with it secondary light source.Owing to adopt transparent horizontal rotary table 3, need not again the workpiece upset can be realized the detection of workpiece lower surface, improved detection efficiency.
Wherein, the structure of image optics mirror group and camera itself belongs to prior art, does not repeat them here.
Shown in Fig. 2-4; (present embodiment adopts 4 positioning tooth structures), said centralizer 7 comprises round base 1; The lower end of said pedestal 1 is provided with circular mounting hole 101; When centralizer was installed, said circular mounting hole 101 was loaded on the detection platform 6, and the circular mounting hole 101 of centralizer 7 is coaxial with transparent horizontal rotary table 3.Said pedestal 1 be provided with 4 positioning tooths 2; Said 4 positioning tooths 2 evenly distribute around the center of pedestal 1; Said each positioning tooth 2 is extended to the center by susceptor edges; The crown 204 of all positioning tooths 2 coexists on the circumference on the pedestal 1, and the diameter of the centering circle 201 that the crown 204 of said positioning tooth 2 forms is suitable with the external diameter of waiting to press from both sides workpiece, and said centering circle 201 is concentric with said circular mounting hole 101.The diameter of the circle 201 that the crown 204 of said positioning tooth 2 forms is less than the diameter in said circular mounting hole 101.The upper surface of said positioning tooth 2 is inclined-plane 202, and promptly the tooth root 203 of positioning tooth 2 is to the attenuation gradually of crown 204 thickness.The tooth root 203 of said positioning tooth 2 narrows down to crown 204 width gradually.The lower surface 205 of said all positioning tooths 2 flushes; So that with transparent horizontal rotary table 3 on the plane suitable; Between the plane micro gap is arranged on the lower surface 205 of said all positioning tooths 2 and the transparent horizontal rotary table 3, make that the plane does not contact on lower surface 205 and the transparent horizontal rotary table 3 of said all positioning tooths 2.Be provided with the breach 102 of being convenient to image collection on the said round base 1 between every adjacent positioned tooth.
The action of the work of said computer control image acquisition system and transparent horizontal rotary table 3.
The detection method of said a kind of workpiece open defect pick-up unit comprises the steps:
A, workpiece for measurement is put on the transparent horizontal rotary table 3 of the centering circle 201 that the crown 204 of positioning tooth described in the centralizer 2 forms; When centralizer is installed; Said circular mounting hole 101 is loaded on the detection platform 6; And the circular mounting hole 101 of centralizer 7 is coaxial with transparent horizontal rotary table 3; Then workpiece for measurement is put into the centering circle 201 of crown 204 formation of positioning tooth described in the centralizer 2, realized the quick centering of workpiece for measurement;
B, computing machine send instruction, said transparent horizontal rotary table 3 rotations, and workpiece for measurement is along with transparent horizontal rotary table 3 rotations;
C, computing machine send instruction, said upper surface, internal circular surfaces and the outer round surface that image system is taken workpiece for measurement, the image of acquisition workpiece upper surface, internal circular surfaces and outer round surface shooting area gone up; Said image system is down taken the lower surface of workpiece for measurement, obtains the image of workpiece lower surface shooting area;
D, said image handle and obtain result through image capturing system in the computing machine, thereby the open defect of accomplishing the workpiece all surface detects.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (9)
1. workpiece open defect pick-up unit; Comprise detection platform; And image system, said image system comprises secondary light source, image optics mirror group and camera, said camera is connected with the computing machine that has image capturing system; It is characterized in that said detection platform comprises transparent horizontal rotary table; Said image system comprises image system and following image system, and wherein, last image system is positioned at the oblique upper of detection platform, and following image system is positioned at the below of transparent horizontal rotary table.
2. a kind of workpiece open defect pick-up unit according to claim 1 is characterized in that, the said image system of going up comprises at least two image systems.
3. a kind of workpiece open defect pick-up unit according to claim 2 is characterized in that, on the said transparent horizontal rotary table centralizer is housed.
4. a kind of workpiece open defect pick-up unit according to claim 3; It is characterized in that; Said centralizer comprises round base (1), and the lower end of said pedestal (1) is provided with circular mounting hole (101), and the upper end of said pedestal (1) is provided with at least 3 positioning tooths (2); Said each positioning tooth (2) is extended to the center by susceptor edges; The crown (204) that pedestal (1) is gone up all positioning tooths (2) coexists on the circumference, and the diameter of the centering circle (201) that the crown (204) of said positioning tooth (2) forms is suitable with the external diameter of waiting to press from both sides workpiece, and said centering circle (201) is concentric with said circular mounting hole (101).
5. a kind of workpiece open defect pick-up unit according to claim 4 is characterized in that the upper surface of said positioning tooth (2) is inclined-plane (202), and promptly the tooth root (203) of positioning tooth (2) is to the attenuation gradually of crown (204) thickness.
6. a kind of workpiece open defect pick-up unit according to claim 5 is characterized in that the tooth root (203) of said positioning tooth (2) narrows down to crown (204) width gradually.
7. a kind of workpiece open defect pick-up unit according to claim 6 is characterized in that the lower surface of said positioning tooth (2) flushes.
8. a kind of workpiece open defect pick-up unit according to claim 7 is characterized in that, said round base (1) is gone up between every adjacent positioned tooth and is provided with the breach (102) of being convenient to image collection.
9. according to any described a kind of workpiece open defect pick-up unit of claim 1-8, it is characterized in that the work of said computer control image acquisition system and the action of transparent horizontal rotary table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203332890U CN202182866U (en) | 2011-09-06 | 2011-09-06 | Detection device for workpiece appearance defects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203332890U CN202182866U (en) | 2011-09-06 | 2011-09-06 | Detection device for workpiece appearance defects |
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| Publication Number | Publication Date |
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| CN202182866U true CN202182866U (en) | 2012-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203332890U Expired - Fee Related CN202182866U (en) | 2011-09-06 | 2011-09-06 | Detection device for workpiece appearance defects |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288616A (en) * | 2011-09-06 | 2011-12-21 | 成都银河磁体股份有限公司 | Device and method for detecting workpiece appearance defects |
| CN102636495A (en) * | 2012-04-13 | 2012-08-15 | 中国科学院宁波材料技术与工程研究所 | All-round automatic detection device for surface defects of workpieces |
| CN104101606A (en) * | 2014-07-28 | 2014-10-15 | 苏州华兴源创电子科技有限公司 | Detection device for detecting front and back surfaces of liquid crystal panel |
| CN106000903A (en) * | 2016-05-11 | 2016-10-12 | 华中科技大学 | Non-contact detection system and method for detecting cloth clip knife gap of loom |
-
2011
- 2011-09-06 CN CN2011203332890U patent/CN202182866U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288616A (en) * | 2011-09-06 | 2011-12-21 | 成都银河磁体股份有限公司 | Device and method for detecting workpiece appearance defects |
| CN102288616B (en) * | 2011-09-06 | 2014-04-23 | 成都银河磁体股份有限公司 | Device and method for detecting workpiece appearance defects |
| CN102636495A (en) * | 2012-04-13 | 2012-08-15 | 中国科学院宁波材料技术与工程研究所 | All-round automatic detection device for surface defects of workpieces |
| CN104101606A (en) * | 2014-07-28 | 2014-10-15 | 苏州华兴源创电子科技有限公司 | Detection device for detecting front and back surfaces of liquid crystal panel |
| CN104101606B (en) * | 2014-07-28 | 2017-02-15 | 苏州华兴源创电子科技有限公司 | Detection device for detecting front and back surfaces of liquid crystal panel |
| CN106000903A (en) * | 2016-05-11 | 2016-10-12 | 华中科技大学 | Non-contact detection system and method for detecting cloth clip knife gap of loom |
| CN106000903B (en) * | 2016-05-11 | 2018-03-27 | 华中科技大学 | A kind of non-contact detection system and method for being used to detect loom cloth gripper edge gap |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20200906 |