CN202144032U - Visual detection device of tool wear state - Google Patents
Visual detection device of tool wear state Download PDFInfo
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- CN202144032U CN202144032U CN201120136423U CN201120136423U CN202144032U CN 202144032 U CN202144032 U CN 202144032U CN 201120136423 U CN201120136423 U CN 201120136423U CN 201120136423 U CN201120136423 U CN 201120136423U CN 202144032 U CN202144032 U CN 202144032U
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Abstract
The utility model discloses a visual detection device of tool wear state, which comprises an image collecting platform; an image collecting device is installed on the image collecting platform and is connected with a computer; the image collecting platform comprises a base which is provided with a first sleeve and a first lead screw; the top of the first lead screw is connected with a first handle; the first lead screw is provided with a first screw; a cross beam is sheathed at the outer side of the first sleeve; the first screw is connected with the cross beam on which a second sleeve is fixed; the inner cavity of the second sleeve is provided with a second lead screw; one end part of the second lead screw is connected with a second handle; a second screw is installed on the second lead screw; and a bracket is sheathed at the outer side of the second sleeve and is connected with the second screw. In the utility model, the tool wear state is detected based on machine vision, and the wear state and wearing capacity of the tool can be detected without detaching the tool, so that on-line detection can be realized, and the wear state of the tool can be automatically recognized.
Description
Technical field
The utility model belongs to the automatic detection system technical field, is specifically related to a kind of cutting-tool wear state vision inspection apparatus.
Background technology
Since the late nineteen eighties in last century, just the someone studies cutting-tool wear state and detects, and reach climax to late nineteen nineties, and obtained many achievements in research, but because a variety of causes, most of detection methods still can not satisfy the needs of engineering practical application fully.Make it move towards practicability, intellectuality, generalization, also have many technical problems to need to solve.Main is to have two key issues that press for solution as follows:
(1) the indirect monitoring method is difficult to apply: the indirect monitoring method is through measuring the signal of reflection tool wear degree; Therefrom extract the characteristic vector of reflection tool wear degree; Discern the characteristic vector of unknown degree of wear cutter with the characteristic vector of the known cutter degree of wear; Thereby judge the degree of wear of cutter, in principle, this feature extraction and identifying are right-on; But because mechanical processing process is a unsettled non-linear process; The wearing and tearing of cutter and cutter material, workpiece material, processing conditions, lubricated selection etc. all have very big relation, receive various stochastic factor through the measured reflection tool wear signal of sensor, the characteristic vector of under a kind of machining condition, being extracted; Be difficult to be widely used in judging other machining condition bottom tool state of wear of identical processing method, the characteristic vector of the judgement tool wear between the different processing methods more is difficult to apply each other.
(2) sensor difficult installation: the sensor installation question of measuring tool wear is a difficult problem always, and it is more accurate to measuring reflection tool wear signal to be installed on the cutter, but influences the rigidity of cutter; Be installed to other positions, signal can be decayed.Monitor for tool failure; Because cutter is when normally being cut to breakage, measuring-signal has very big variation, and monitoring rate is easier to realize; And the wearing and tearing of cutter are the processes of a gradual change, the more difficult variation of measuring the small wearing and tearing of cutter in other positions after the signal attenuation.
Therefore, press for and work out that a kind of criterion is directly perceived, sensor is easy for installation, and can be adapted to the cutting-tool wear state monitoring method of various working.
The utility model content
The purpose of the utility model provides a kind of cutting-tool wear state vision inspection apparatus; It is simple in structure; Easy for installation, detect cutting-tool wear state based on machine vision, need not cutter is unloaded state of wear and the wear extent that can measure cutter; Can realize online detection, discern the state of wear of cutter automatically.
The technical scheme that the utility model adopted is; A kind of cutting-tool wear state vision inspection apparatus; Comprise the IMAQ platform, the image collecting device that is used to obtain cutter and surface of the work image is installed on the IMAQ platform, image collecting device is connected with computer;
The IMAQ platform comprises base; Be installed with first sleeve on the base, on base and the inner chamber that is positioned at first sleeve be equipped with can axial rotation first leading screw, first leading screw and first sleeve are vertical direction and coaxial line; The top of first leading screw is connected with and is used to control the first handle that this first leading screw rotates; Being equipped with on first leading screw can be along its first screw that vertically moves when this first leading screw rotates, and the outside of first sleeve is set with crossbeam, has vertical slots on the sidewall of first sleeve; First screw is connected through first fixed block with crossbeam, and first fixed block is positioned at vertical slots;
Be fixed with second sleeve through horizontal installing hole on the crossbeam; The inner chamber of second sleeve is equipped with second leading screw of ability axial rotation; Second leading screw and second sleeve are horizontal direction and coaxial line, and an end of second leading screw is connected with and is used to control the second handle that this second leading screw rotates, and being equipped with on second leading screw can be along its second screw that moves horizontally when this second leading screw rotates; The outside of second sleeve is set with the support that is used to install image collecting device; Have level trough on the sidewall of second sleeve, second screw is connected through second fixed block with support, and second fixed block is positioned at level trough.
Image collecting device comprises microscope, and the CCD camera that is positioned at relevant position, microscope top.
Be equipped with on the base and be used for the magnechuck that is connected with lathe.
The cutting-tool wear state checkout gear of the utility model is installed in parts such as camera and microscope on the IMAQ platform; Driving two leading screws respectively through two handles rotates; With realize image collecting device up and down and move left and right; Image collecting device can also turn an angle, and like this, can focus so that the image of gathering is more clear.Image collecting device also can rotate and swinging up and down among a small circle around first leading screw, with the image of knife face behind the convenient shooting cutter.The utility model device utilizes magnechuck that base is fixed on the bed piece; Need not like this to unload workpiece and cutter just can directly be taken from lathe; And the distance of camera lens and finished surface is constant when having guaranteed each take, and guarantees the accuracy of experimental data.
The utility model detects cutting-tool wear state based on machine vision, has the characteristic on the bionics, can overcome the intrinsic shortcoming of indirect detection cutting tool state detection method to a great extent, has the advantage that direct method detects tool wear simultaneously.Be suitable for that tool wear detects automatically in the automation processing.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the user mode sketch map of the utility model.
Wherein, 1. base, 2. first leading screw, 3. first sleeve, 4. vertical slots; 5. first screw, 6. crossbeam, 7. first handle, 8. support, 9. second sleeve; 10. level trough, 11. second leading screws, 12. second screws, 13. second handles, 14. computers; 15. image collecting device, 16. lathes, 17. cutters, 18. workpiece.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is elaborated.
Like Fig. 1, Fig. 2 and shown in Figure 3; A kind of cutting-tool wear state vision inspection apparatus of the utility model; Comprise the IMAQ platform; Image collecting device 15 is installed on the IMAQ platform, and image collecting device 15 is used to obtain the surface image of cutter 17 and workpiece 18, and image collecting device 15 is connected with computer 14.
The IMAQ platform comprises base 1; Be installed with first sleeve 3 on the base 1, on base 1 and the inner chamber that is positioned at first sleeve 3 be equipped with can axial rotation first leading screw, 2, the first leading screws 2 and first sleeve 3 be vertical direction and coaxial line; The top of first leading screw 2 is connected with first handle 7; First handle 7 is used to control the rotation of this first leading screw 2, and the inner chamber that is positioned at first sleeve 3 can vertically move along first leading screw 2 when first leading screw 2 rotates in that first screw, 5, the first screws 5 are installed on first leading screw 2; The outside of first sleeve 3 is set with crossbeam 6; Have vertical slots 4, the first screws 5 on the sidewall of first sleeve 3 and be connected through first fixed block with crossbeam 6, first fixed block is positioned at vertical slots 4.
Have horizontal installing hole on the crossbeam 6, and second leading screw 11 is installed through its inner chamber that is fixed with second sleeve, 9, the second sleeves 9; Second leading screw, 11 ability axial rotation, second leading screw 11 and second sleeve 9 are horizontal direction and coaxial line, and an end of second leading screw 11 connects second handle 13; Second handle 13 is used to control the rotation of this second leading screw 11; Be positioned at and second screw, 12, the second screws 12 are installed on second sleeve, 9 inherent second leading screws 11 when this second leading screw 11 rotates, can move horizontally along second leading screw 11, the outside of second sleeve 9 is set with support 8; Support 8 is used to install image collecting device 15; Have level trough 10, the second screws 12 on the sidewall of second sleeve 9 and be connected through second fixed block with support 8, second fixed block is positioned at level trough 10.
Wherein, image collecting device 15 comprises microscope, and the CCD camera that is positioned at relevant position, said microscope top.On the base 1 magnechuck is installed, and can be adsorbed on the lathe 16 through it.
The utility model in use; Base 1 is adsorbed on the lathe 16 through magnechuck; At first take the surface image of workpiece 18 in real time, carry out the preliminary treatment of image through computer 14, and extract the characteristics of image of reflection cutting-tool wear state through image collecting device 15; Press the state of wear of HMM identification cutter 17, concrete steps are following:
(1) in the process that 17 pairs of workpiece 18 of cutter are processed, gathers the surface image of workpiece 18 through image collecting device 15;
(2) image that collects through 14 pairs of experiments of computer carries out preliminary treatment, so that better carry out feature extraction;
(3) carry out feature extraction through 14 pairs of pretreated surface of the work images of computer, obtain corresponding characteristic parameter;
(4) the selected characteristic value is as observation sequence, and the training cutting tool state is discerned HMM;
(5) gather one group of data at last again, extract the characteristic parameter of surface of the work image, and characteristic parameter is inputed to the HMM that trains as observation sequence, identify the abrasion condition of cutter 17 according to identical method.
When wearing and tearing that identify cutter 17 during near blunt, stop cut, detect cutter 17 back knife faces; Take the wear of the tool flank zone of cutter 17 through image collecting device 15; From the tool wear image, be partitioned into tool abrasion, judge whether it reaches the wearing and tearing standard, then do not continue cut if reach the wearing and tearing standard; Otherwise, sharpening or replacing cutter.
Claims (3)
1. cutting-tool wear state vision inspection apparatus; It is characterized in that; Comprise the IMAQ platform, the image collecting device (15) that is used to obtain cutter (17) and workpiece (18) surface image is installed on the said IMAQ platform, said image collecting device (15) is connected with computer (14);
Said IMAQ platform comprises base (1); Be installed with first sleeve (3) on the said base (1); Base (1) go up and the inner chamber that is positioned at said first sleeve (3) be equipped with can axial rotation first leading screw (2); Said first leading screw (2) and said first sleeve (3) are vertical direction and coaxial line, and the top of said first leading screw (2) is connected with and is used to control the first handle (7) that this first leading screw (2) rotates, and being equipped with on said first leading screw (2) can be along its first screw (5) that vertically moves when this first leading screw (2) rotates; The outside of said first sleeve (3) is set with crossbeam (6); Have vertical slots (4) on the sidewall of said first sleeve (3), said first screw (5) is connected through first fixed block with said crossbeam (6), and said first fixed block is positioned at said vertical slots (4);
Said crossbeam (6) is gone up and is fixed with second sleeve (9) through horizontal installing hole; The inner chamber of said second sleeve (9) is equipped with second leading screw (11) of ability axial rotation; Said second leading screw (11) and second sleeve (9) are horizontal direction and coaxial line; One end of said second leading screw (11) is connected with and is used to control the second handle (13) that this second leading screw (11) rotates; Being equipped with on said second leading screw (11) can be along its second screw (12) that moves horizontally when this second leading screw (11) rotates, and the outside of said second sleeve (9) is set with the support (8) that is used to install image collecting device (5), has level trough (10) on the sidewall of said second sleeve (9); Said second screw (12) is connected through second fixed block with said support (8), and said second fixed block is positioned at said level trough (10).
2. according to the described cutting-tool wear state vision inspection apparatus of claim 1, it is characterized in that said image collecting device (15) comprises microscope, and the CCD camera that is positioned at relevant position, said microscope top.
3. according to the described cutting-tool wear state vision inspection apparatus of claim 1, it is characterized in that, be equipped with on the said base (1) and be used for the magnechuck that is connected with lathe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120136423U CN202144032U (en) | 2011-05-03 | 2011-05-03 | Visual detection device of tool wear state |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120136423U CN202144032U (en) | 2011-05-03 | 2011-05-03 | Visual detection device of tool wear state |
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| CN202144032U true CN202144032U (en) | 2012-02-15 |
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| CN201120136423U Expired - Fee Related CN202144032U (en) | 2011-05-03 | 2011-05-03 | Visual detection device of tool wear state |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528562A (en) * | 2012-02-28 | 2012-07-04 | 上海大学 | On-line automatic tool setting and breakage detection device for minitype milling tool |
| CN102658505A (en) * | 2012-04-12 | 2012-09-12 | 苏州怡信光电科技有限公司 | Position adjusting device for optical tool setting gauge projection system |
| CN102825505A (en) * | 2012-08-27 | 2012-12-19 | 华南理工大学 | Online detecting system of machine tool cutters based on machine vision |
| CN103076763A (en) * | 2012-12-26 | 2013-05-01 | 山东拓维数控设备有限公司 | Real-time detection system for state of cutting tool of numerical control machine tool |
| CN103551900A (en) * | 2013-11-13 | 2014-02-05 | 桂林正菱第二机床有限责任公司 | Automatic cutter changing system for numerically-controlled machine tool |
| CN105108578A (en) * | 2015-09-07 | 2015-12-02 | 大连民族大学 | Apparatus and method for online testing numerical control lathe and intelligently compensating cutter abrasion |
| CN105259176A (en) * | 2015-11-12 | 2016-01-20 | 长春设备工艺研究所 | Tool abrasion detector |
| CN106706662A (en) * | 2016-11-17 | 2017-05-24 | 彩虹（合肥）液晶玻璃有限公司 | TFT-LCD glass substrate semi-finished product section analysis device |
| CN107560542A (en) * | 2017-08-28 | 2018-01-09 | 吉林工程技术师范学院 | A kind of Drill Wear Monitoring Using method |
| CN107717509A (en) * | 2017-11-10 | 2018-02-23 | 西京学院 | A kind of milling fixture for vision-based detection |
| CN108081326A (en) * | 2018-01-24 | 2018-05-29 | 佛山市三水金恒金属制品有限公司 | A kind of cutter device for monitoring blade abrasion |
| CN108195310A (en) * | 2018-02-12 | 2018-06-22 | 大连大学 | A kind of cutter blade type detection device based on computer vision |
| CN108297141A (en) * | 2018-01-24 | 2018-07-20 | 佛山市三水金恒金属制品有限公司 | A kind of aluminium sheet film leftover pieces retracting device |
| CN110625439A (en) * | 2019-09-29 | 2019-12-31 | 哈尔滨理工大学 | Device for detecting tool wear by camera |
| CN111429395A (en) * | 2019-01-08 | 2020-07-17 | 鸿富锦精密电子（成都）有限公司 | Tool life prediction method, device and computer storage medium |
-
2011
- 2011-05-03 CN CN201120136423U patent/CN202144032U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528562B (en) * | 2012-02-28 | 2014-10-15 | 上海大学 | On-line automatic tool setting and breakage detection device for minitype milling tool |
| CN102528562A (en) * | 2012-02-28 | 2012-07-04 | 上海大学 | On-line automatic tool setting and breakage detection device for minitype milling tool |
| CN102658505A (en) * | 2012-04-12 | 2012-09-12 | 苏州怡信光电科技有限公司 | Position adjusting device for optical tool setting gauge projection system |
| CN102825505A (en) * | 2012-08-27 | 2012-12-19 | 华南理工大学 | Online detecting system of machine tool cutters based on machine vision |
| CN103076763A (en) * | 2012-12-26 | 2013-05-01 | 山东拓维数控设备有限公司 | Real-time detection system for state of cutting tool of numerical control machine tool |
| CN103551900B (en) * | 2013-11-13 | 2016-05-18 | 桂林正菱第二机床有限责任公司 | A kind of automatic tool changer for Digit Control Machine Tool |
| CN103551900A (en) * | 2013-11-13 | 2014-02-05 | 桂林正菱第二机床有限责任公司 | Automatic cutter changing system for numerically-controlled machine tool |
| CN105108578A (en) * | 2015-09-07 | 2015-12-02 | 大连民族大学 | Apparatus and method for online testing numerical control lathe and intelligently compensating cutter abrasion |
| CN105259176A (en) * | 2015-11-12 | 2016-01-20 | 长春设备工艺研究所 | Tool abrasion detector |
| CN105259176B (en) * | 2015-11-12 | 2017-11-07 | 长春设备工艺研究所 | Cuter wear detector |
| CN106706662A (en) * | 2016-11-17 | 2017-05-24 | 彩虹（合肥）液晶玻璃有限公司 | TFT-LCD glass substrate semi-finished product section analysis device |
| CN107560542A (en) * | 2017-08-28 | 2018-01-09 | 吉林工程技术师范学院 | A kind of Drill Wear Monitoring Using method |
| CN107717509A (en) * | 2017-11-10 | 2018-02-23 | 西京学院 | A kind of milling fixture for vision-based detection |
| CN108081326A (en) * | 2018-01-24 | 2018-05-29 | 佛山市三水金恒金属制品有限公司 | A kind of cutter device for monitoring blade abrasion |
| CN108297141A (en) * | 2018-01-24 | 2018-07-20 | 佛山市三水金恒金属制品有限公司 | A kind of aluminium sheet film leftover pieces retracting device |
| CN108195310A (en) * | 2018-02-12 | 2018-06-22 | 大连大学 | A kind of cutter blade type detection device based on computer vision |
| CN111429395A (en) * | 2019-01-08 | 2020-07-17 | 鸿富锦精密电子（成都）有限公司 | Tool life prediction method, device and computer storage medium |
| CN110625439A (en) * | 2019-09-29 | 2019-12-31 | 哈尔滨理工大学 | Device for detecting tool wear by camera |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120215 Termination date: 20140503 |