CN114353691B - Appearance detection device and detection method for special-shaped product - Google Patents
Appearance detection device and detection method for special-shaped product Download PDFInfo
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- CN114353691B CN114353691B CN202111555664.0A CN202111555664A CN114353691B CN 114353691 B CN114353691 B CN 114353691B CN 202111555664 A CN202111555664 A CN 202111555664A CN 114353691 B CN114353691 B CN 114353691B
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- 238000001514 detection method Methods 0.000 title claims abstract description 90
- 238000003384 imaging method Methods 0.000 claims abstract description 4
- 206010066054 Dysmorphism Diseases 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention discloses a contour detection device for special-shaped products, which comprises a positioning plate, a bearing plate, profiling blocks, a positioning assembly and an image detection device, wherein the profiling blocks are arranged above the bearing plate, and a plurality of special-shaped pieces are arranged on a plurality of profiling blocks in a matching way; the positioning assembly comprises reference columns which are arranged on the supporting plate, the number of the reference columns is two, the reference columns are provided with first magnetic attraction blocks, two detection reference surfaces of the special-shaped piece are respectively positioned on one side of the first magnetic attraction blocks, the two detection reference surfaces are positioned in different plane spaces, a detection positioning pin is arranged perpendicular to the detection reference surfaces, one end perpendicular to the detection positioning pin is provided with a second magnetic attraction block, the second magnetic attraction block is attached to the surface of the detection reference surfaces, and the second magnetic attraction blocks and the first magnetic attraction blocks are mutually attracted; the image detection device is used for shooting and obtaining three-dimensional space imaging of the detection positioning pin, and the detection invention comprises the following steps: the special-shaped piece pre-positioning and fixing and detecting device can improve the special-shaped piece appearance detecting efficiency.
Description
Technical Field
The invention relates to the technical field of appearance inspection devices, in particular to an appearance detection device and method for special-shaped products.
Background
At present, when automobile parts are manufactured, various special-shaped automobile shells can be produced, errors can be avoided in the production process, and some automobile shells which are not in accordance with the standard in size can not reach the specification of being put into use, so that the produced automobile shells need to be checked one by utilizing a shape detection device before being produced, and defective products are removed. The detection of the automobile shell in the market at present usually adopts a mode of clamping the special-shaped product between detection blocks matched with the special-shaped product in shape to observe whether the sizes of the detection blocks are matched with each other, and the appearance detection mode is not high in efficiency.
Disclosure of Invention
Therefore, the invention provides a device and a method for detecting the appearance of a special-shaped product, so as to solve the defects in the prior art.
An appearance detection device of special-shaped product includes:
the positioning plate is provided with positioning columns;
The bearing plate is used for bearing the special-shaped piece and is provided with a positioning hole matched with the positioning column;
the profiling blocks are arranged above the bearing plates, clamping grooves which are positioned in a way of being matched with the parts of the special-shaped pieces are formed above the profiling blocks, and the profiling blocks can position the special-shaped pieces in a three-dimensional space;
The positioning assembly comprises reference columns which are arranged on the bearing plate, the number of the reference columns is two, first magnetic attraction blocks are arranged on the reference columns, two detection datum planes of the special-shaped piece are respectively positioned on one side of the first magnetic attraction blocks, the two detection datum planes are positioned in different plane spaces, a detection positioning pin is arranged perpendicular to the detection datum planes, a second magnetic attraction block is arranged at one end perpendicular to the detection positioning pin, the second magnetic attraction block is attached to the surface of the detection datum planes, and the second magnetic attraction blocks and the first magnetic attraction blocks are mutually attracted;
The image detection device is arranged on one side of the locating plate and comprises a controller and a shooting camera connected with the controller, and the shooting camera is used for shooting and obtaining three-dimensional space imaging of the detection locating pin.
Preferably, the number of the positioning columns is three, and the projections of the three positioning columns in the vertical direction are not on the same straight line.
Preferably, the two detection datum planes select positions of two ends of the section of the special-shaped piece.
Preferably, the image detection device further comprises a warning lamp (not shown in the figure) connected with the controller.
A detection method of a contour detection device of a special-shaped product comprises the following steps:
S100, presetting a special-shaped piece:
Inserting the positioning holes of the bearing plate into the corresponding positioning columns on the positioning plate, and clamping the special-shaped pieces in the clamping grooves of the profiling blocks to realize preliminary positioning;
S200, fixing the special-shaped piece:
the detection locating pins with one ends vertically provided with the second magnetic attraction blocks are respectively vertically arranged on the outer side surfaces of the two detection datum planes and are attracted by the first magnetic attraction blocks on the reference column;
s300, detection:
s301, aligning the shooting cameras to the two detection positioning pins from above to shoot, and transmitting the data photos to the controller;
S302, the controller compares the received data with images of two detection locating pins after locating the standard foreign parts acquired in advance;
S303, if the positions of the detection positioning pins 403 in the picture shot in S301 and the standard foreign part picture are consistent (within the threshold range), judging that the appearance of the foreign part meets the standard, otherwise, judging that the foreign part is unqualified, and instructing the warning lamp to light up for prompting by the controller.
The invention has the following advantages:
According to the invention, the special-shaped piece is positioned on the profiling blocks with the matched shapes, the position of the detection datum part of the special-shaped piece to be detected relative to the reference column is converted into the position of the reference column relative to the detection locating pin through the locating component, and the relative position of the detection locating pin relative to the detection datum surface of the special-shaped piece is fixed. By detecting the position of the detection locating pin, whether the key position of the special-shaped piece accords with the standard piece or not can be judged, and the detection efficiency of the special-shaped piece is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the profile of the present invention;
FIG. 3 is a schematic view of the positioning structure of the profile of the present invention;
fig. 4 is an enlarged connection structure of the positioning assembly of the present invention.
In the figure:
1-positioning plates; 2-a supporting plate; 3-profiling blocks; 4-positioning assembly; 5-an image detection device; 10-special-shaped pieces; 20-detecting a reference surface;
101-positioning columns; 201-positioning holes; 301-clamping grooves;
401-reference column; 402-a first magnetic attraction block; 403-detecting the locating pin; 404-a second magnetic attraction block; 502-a shooting camera.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1:
As shown in fig. 1 to 4, the present invention provides a device for detecting the appearance of a shaped product, which comprises a positioning plate 1, a bearing plate 2, a profiling block 3, a positioning assembly 4 and an image detection device 5. Specific:
The positioning plate 1 is provided with three positioning columns 101, and the projections of the three positioning columns 101 in the vertical direction are not on the same straight line. Such a positioning post 101 may define a face.
Wherein, the supporting plate 2 is used for bearing the special-shaped piece 10, and the supporting plate 2 is provided with a positioning hole 201 which is matched with the positioning column 101. Positioning between the two is achieved when the carrier plate 2 is mounted on the positioning plate 1 along the positioning posts 101. A preliminary space for placing the profile 10 is determined.
Wherein, the profiling block 3 is installed above the bearing plate 2, a plurality of clamping grooves 301 which are mutually matched with the local parts of the special-shaped pieces 10 are arranged above the profiling blocks 3, and the profiling blocks 3 can realize the positioning of the special-shaped pieces 10 in a three-dimensional space.
The positioning assembly 4 comprises two reference columns 401 mounted on the bearing plate 2, and in the actual detection process, more reference columns 401 can be arranged according to the requirement.
The reference column 401 is provided with a first magnetic block 402, two detection reference surfaces 20 of the special-shaped piece 10 are respectively positioned at one side of the first magnetic block 402, the two detection reference surfaces 20 are positioned in different plane spaces, a detection positioning pin 403 is arranged perpendicular to the detection reference surfaces 20, one end perpendicular to the detection positioning pin 403 is provided with a second magnetic block 404, the second magnetic block 404 is attached to the surface of the detection reference surface 20, and the second magnetic block 404 and the first magnetic block 402 are mutually adsorbed;
The datum surface 20 may select several test sites that are critical to verifying product dimensional eligibility. The reference surface 20 is preferably a plane, and a curved surface portion with relatively prominent characteristics of the shaped piece 10 may be selected. When the curved surface is selected for the measurement reference surface 20, the side of the second magnetic attraction block 404 close to the measurement reference surface 20 is also matched with the shape of the curved surface.
Preferably, two detection datum planes 20 select positions of two ends of the cross section of the special-shaped piece 10. This is a product that allows for non-compliance, and verification at both ends of the product may be more advantageous for size verification.
The image detection device 5 is installed on one side of the positioning plate 1, and comprises a controller and a shooting camera 502 connected with the controller, wherein the shooting camera 502 is used for shooting and obtaining three-dimensional space imaging of the detection positioning pin 403. I.e. the camera 502 is arranged on the top side of the profile 10 and on two mutually perpendicular side sides.
The image detection device 5 further comprises a warning lamp (not shown in the figure) connected to the controller. When the product is unqualified, the warning lamp lights up to give a prompt.
Example 2:
The detection method of the appearance detection device of the special-shaped product comprises the following steps:
S100, presetting a special-shaped piece:
Inserting the positioning holes 201 of the bearing plate 2 into the corresponding positioning columns 101 on the positioning plate 1, and clamping the special-shaped pieces 10 in the clamping grooves 301 of the profiling blocks 3 to realize primary positioning;
S200, fixing the special-shaped piece:
A detection positioning pin 403 with one end vertically provided with a second magnetic attraction block 404 is respectively and vertically arranged on the outer side surfaces of the two detection datum planes 20 and is attracted by the first magnetic attraction block 402 on the reference column 401; on the one hand, the first magnetic attraction block 402 and the second magnetic attraction block 404 are mutually attracted, so that the fixed special-shaped piece in the S200 can be further attracted firmly, the unexpected situation of the special-shaped piece is prevented from being displaced, and the detection effect is prevented from being influenced; on the other hand, the invention can convert the position of the part of the special-shaped piece 10 to be detected, which is relative to the reference column 401, into the position of the reference column 401 relative to the detection positioning pin 403, because the relative position of the detection positioning pin 403 relative to the special-shaped piece 10, which is relative to the detection reference surface 20, is fixed. By detecting the position of the detecting locating pin 403, it can be determined whether the critical position of the profile 10 meets the standard.
S300, detection:
s301, aligning the shooting cameras 502 with the two detection positioning pins 403 from above to shoot, and transmitting the data photos to the controller;
S302, the controller compares the received data with images of two detection positioning pins 403 after the standard foreign parts are positioned in advance;
s303, if the positions of the detection positioning pins 403 in the picture shot in S301 and the standard foreign part picture are consistent (within the threshold range), the appearance of the foreign part 10 is judged to be up to standard, otherwise, the foreign part 10 is not qualified, and the controller instructs the warning lamp to light for prompting.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (1)
1. Appearance detection device of dysmorphism product, its characterized in that: comprises a positioning plate (1) on which positioning columns (101) are arranged; the bearing plate (2) is used for bearing the special-shaped piece (10), and a positioning hole (201) matched with the positioning column (101) is formed in the bearing plate (2); the profiling blocks (3) are arranged above the bearing plates (2), clamping grooves (301) which are positioned in a local mutually matched mode with the special-shaped pieces (10) are formed above the profiling blocks (3), and the profiling blocks (3) can position the special-shaped pieces (10) in a three-dimensional space; the positioning assembly (4) comprises reference columns (401) arranged on the supporting plate (2), the number of the reference columns (401) is two, first magnetic blocks (402) are arranged on the reference columns (401), two detection reference surfaces (20) of the special-shaped piece (10) are respectively positioned on one sides of the first magnetic blocks (402), the two detection reference surfaces (20) are positioned in different plane spaces, a detection positioning pin (403) is arranged perpendicular to the detection reference surfaces (20), a second magnetic block (404) is arranged at one end perpendicular to the detection positioning pin (403), the second magnetic blocks (404) are attached to the surface of the detection reference surfaces (20), and the second magnetic blocks (404) and the first magnetic blocks (402) are mutually adsorbed; the image detection device (5) is arranged on one side of the positioning plate (1) and comprises a controller and a shooting camera (502) connected with the controller, and the shooting camera (502) is used for shooting and obtaining three-dimensional space imaging of the detection positioning pin (403);
The number of the positioning columns (101) is three, and the projections of the three positioning columns (101) in the vertical direction are not on the same straight line;
the two detection reference surfaces (20) select positions of two ends of the cross section of the special-shaped piece (10);
the image detection device (5) further comprises a warning lamp connected with the controller;
The appearance detection device of the special-shaped product comprises the following steps when in detection:
s100, presetting a special-shaped piece: inserting the positioning holes (201) of the bearing plate (2) into the corresponding positioning columns (101) on the positioning plate (1), and clamping the special-shaped pieces (10) in the clamping grooves (301) of the profiling blocks (3) to realize preliminary positioning;
s200, fixing the special-shaped piece: a detection positioning pin (403) with one end vertically provided with a second magnetic attraction block (404) is respectively and vertically arranged on the outer side surfaces of the two detection reference surfaces (20) and is attracted by a first magnetic attraction block (402) on a reference column (401);
s300, detection:
S301, shooting a picture by a shooting camera (502) from above aiming at two detection positioning pins (403), and transmitting a data picture to a controller;
S302, the controller compares the received data with images of two detection positioning pins (403) after the standard special-shaped piece is positioned in advance;
S303, if the picture shot in S301 is matched with the position of the detection locating pin (403) in the standard special-shaped piece picture, judging that the appearance of the special-shaped piece (10) meets the standard, otherwise, the special-shaped piece (10) is unqualified, and the controller instructs the warning lamp to light for prompting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111555664.0A CN114353691B (en) | 2021-12-17 | 2021-12-17 | Appearance detection device and detection method for special-shaped product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111555664.0A CN114353691B (en) | 2021-12-17 | 2021-12-17 | Appearance detection device and detection method for special-shaped product |
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| Publication Number | Publication Date |
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| CN114353691A CN114353691A (en) | 2022-04-15 |
| CN114353691B true CN114353691B (en) | 2024-06-11 |
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Citations (5)
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|---|---|---|---|---|
| CN102749043A (en) * | 2012-07-24 | 2012-10-24 | 上海中国弹簧制造有限公司 | Digital photographic detection method and detection system for spring shape |
| CN106091922A (en) * | 2016-05-25 | 2016-11-09 | 广州市思林杰自动化科技有限公司 | A kind of method and device that workpiece is detected |
| CN106767504A (en) * | 2016-12-09 | 2017-05-31 | 芜湖哈特机器人产业技术研究院有限公司 | Moulding pipe automatic detection device and its detection method |
| JP2019129523A (en) * | 2018-01-26 | 2019-08-01 | 株式会社リコー | Position detection apparatus, image forming apparatus, and position detection method |
| CN213147762U (en) * | 2020-09-04 | 2021-05-07 | 芜湖顺威智能科技有限公司 | Special-shaped part positioning device |
-
2021
- 2021-12-17 CN CN202111555664.0A patent/CN114353691B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749043A (en) * | 2012-07-24 | 2012-10-24 | 上海中国弹簧制造有限公司 | Digital photographic detection method and detection system for spring shape |
| CN106091922A (en) * | 2016-05-25 | 2016-11-09 | 广州市思林杰自动化科技有限公司 | A kind of method and device that workpiece is detected |
| CN106767504A (en) * | 2016-12-09 | 2017-05-31 | 芜湖哈特机器人产业技术研究院有限公司 | Moulding pipe automatic detection device and its detection method |
| JP2019129523A (en) * | 2018-01-26 | 2019-08-01 | 株式会社リコー | Position detection apparatus, image forming apparatus, and position detection method |
| CN213147762U (en) * | 2020-09-04 | 2021-05-07 | 芜湖顺威智能科技有限公司 | Special-shaped part positioning device |
Non-Patent Citations (1)
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| 基于ATOS扫描的异形件形貌检测与逆向技术研究;张潇予;《中国优秀硕士学位论文全文数据库（电子期刊）》;20140831;第I138-1223 * |
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