CN112362664A - Method for checking large-surface flatness of rapid workpiece - Google Patents
Method for checking large-surface flatness of rapid workpiece Download PDFInfo
- Publication number
- CN112362664A CN112362664A CN202011193357.8A CN202011193357A CN112362664A CN 112362664 A CN112362664 A CN 112362664A CN 202011193357 A CN202011193357 A CN 202011193357A CN 112362664 A CN112362664 A CN 112362664A
- Authority
- CN
- China
- Prior art keywords
- detected
- rapid
- large surface
- flatness
- sample piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000005498 polishing Methods 0.000 claims abstract description 6
- 230000000007 visual effect Effects 0.000 claims abstract description 5
- 239000000428 dust Substances 0.000 claims abstract description 4
- 238000005286 illumination Methods 0.000 claims abstract description 4
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 239000003973 paint Substances 0.000 claims abstract description 4
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
- G01N2021/8822—Dark field detection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention relates to a method for checking the large-surface flatness of a rapid workpiece, which comprises the following steps: 1) removing dust on the surface of the rapid sample piece to be detected; 2) moving the rapid sample piece to be detected to an environment with dark light, and placing stably; such as: special dark rooms, paint rooms and the like; holding the light source to form an included angle of less than 30 degrees with the detected large surface; 4) observing the detected large surface at multiple angles by naked eyes, and repeatedly confirming the detection result; for the divergent inspection results, rechecking can be carried out by changing the illumination position or the visual angle; 5) and after the positions of the unevenness are found, the lines are marked, and specific positions are provided for polishing and repairing. The large surface of the rapid sample piece to be detected is inspected by spotlighting in the dark, so that the position of the surface unevenness of the large surface of the rapid sample piece to be detected can be quickly found out by using the least energy, and a perfect molded surface foundation is provided for the subsequent procedures.
Description
Technical Field
The invention relates to the technical field of automobile part detection, in particular to a method for detecting the large-surface flatness of a rapid part.
Background
With the increasing progress of the technological level, new methods and new materials are continuously applied to the trial production of model samples of brand new cabs, particularly the trial production of sample vehicles of dynamic concept exhibition vehicles. However, although the problem of large-area flatness can be well solved by using various instruments and equipment, in the process of flattening and polishing a rapid piece, a local concave-convex phenomenon can occur, and due to tiny fluctuation, the concave-convex phenomenon cannot be found basically by visual observation under normal conditions. The use of conventional detection methods can be time, material and cost intensive.
The existing method for checking the large-surface flatness of a rapid piece comprises the following steps: touching the large surface by hand, and detecting the flatness; or detecting the flatness of the large surface by visual inspection; or measuring by a running rule and a gauge. The existing inspection method has the following defects: the detection person is required to have higher experience, the sensory detection has poorer accuracy, the detection speed is low, and the process is complicated.
Therefore, the method for inspecting the large surface by spotlighting in the dark is simple, convenient and quick, can use the least energy, quickly solves the problems and provides a perfect profile foundation for the subsequent process.
Disclosure of Invention
In order to solve the problems, the invention provides a method for inspecting the flatness of the large surface of a quick piece.
The technical scheme adopted by the invention is as follows: a method for checking the large-area flatness of a rapid workpiece comprises the following steps:
1) removing dust on the surface of the rapid sample to be detected;
2) moving the rapid sample piece to be detected to a darkroom environment, and placing stably;
3) the light source and the large surface to be detected are irradiated by an included angle by holding the light-gathering light source;
4) observing the detected large surface at multiple angles by naked eyes, and repeatedly confirming the detection result;
5) and after the positions of the unevenness are found, the lines are marked, and specific positions are provided for polishing and repairing.
Preferably, in step 2), the rapid sample to be detected is moved to a special darkroom or paint booth.
Preferably, in step 3), the light source and the detected large surface are irradiated at an included angle of less than 30 degrees.
Preferably, in step 4), the checking result with the divergence is checked by replacing the illumination position or the visual angle.
The beneficial effects obtained by the invention are as follows: the large surface of the rapid sample piece to be detected is inspected by spotlighting in the dark, so that the position of the surface unevenness of the large surface of the rapid sample piece to be detected can be quickly found out by using the least energy, and a perfect molded surface foundation is provided for the subsequent procedures.
Detailed Description
The present invention will be further described with reference to the following examples.
The invention discloses a method for checking the large-surface flatness of a rapid workpiece, which comprises the following steps:
1) removing dust on the surface of the rapid sample piece to be detected;
2) moving the rapid sample piece to be detected to an environment with dark light, and placing stably; such as: special dark room, paint room, etc
3) The light source and the detected large surface form an included angle of less than 30 degrees by holding the light-gathering light source;
4) observing the detected large surface at multiple angles by naked eyes, and repeatedly confirming the detection result; for the divergent inspection results, rechecking can be carried out by changing the illumination position or the visual angle;
5) and after the positions of the unevenness are found, the lines are marked, and specific positions are provided for polishing and repairing.
In the process of manufacturing simulated textures of a cab of a T93T concept vehicle, due to the fact that parts are subjected to surface polishing, concave-convex parts are enlarged by surface materials, and are reworked due to the fact that the concave-convex parts are not smooth enough, concave-convex detection can be completed quickly by the method, time is saved, and a quick and effective method is provided for the most perfect appearance effect of interior parts. The method disclosed by the invention is successfully applied to the T93T concept car concept cab interior decoration, and the user experience and display effect are very good.
The foregoing shows and describes the general principles and principal structural features of the present invention. The present invention is not limited to the above examples, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A method for checking the large-area flatness of a rapid workpiece comprises the following steps:
1) removing dust on the surface of the rapid sample to be detected;
2) moving the rapid sample piece to be detected to a darkroom environment, and placing stably;
3) the light source and the large surface to be detected are irradiated by an included angle by holding the light-gathering light source;
4) observing the detected large surface at multiple angles by naked eyes, and repeatedly confirming the detection result;
5) and after the positions of the unevenness are found, the lines are marked, and specific positions are provided for polishing and repairing.
2. The method of inspecting the flatness of the large faces of a rapid item according to claim 1, characterized in that: and 2), moving the rapid sample to be detected to a special darkroom or paint room.
3. The method of inspecting the flatness of the large faces of a rapid item according to claim 1, characterized in that: and 3) irradiating the light source and the detected large surface by an included angle of less than 30 degrees.
4. The method of inspecting the flatness of the large faces of a rapid item according to claim 1, characterized in that: and 4) in step 4), for the divergent inspection result, replacing the illumination position or the visual angle for rechecking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011193357.8A CN112362664A (en) | 2020-10-30 | 2020-10-30 | Method for checking large-surface flatness of rapid workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011193357.8A CN112362664A (en) | 2020-10-30 | 2020-10-30 | Method for checking large-surface flatness of rapid workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112362664A true CN112362664A (en) | 2021-02-12 |
Family
ID=74513110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011193357.8A Pending CN112362664A (en) | 2020-10-30 | 2020-10-30 | Method for checking large-surface flatness of rapid workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112362664A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001083100A (en) * | 1999-09-14 | 2001-03-30 | Nikko Materials Co Ltd | Surface-inspecting method and device |
| CN204177363U (en) * | 2014-07-02 | 2015-02-25 | 中南大学 | A kind of minute surface ceramic tile flatness on-line measuring device |
| CN108161578A (en) * | 2017-12-06 | 2018-06-15 | 江苏师范大学 | A kind of processing method of elongated optical device end face |
-
2020
- 2020-10-30 CN CN202011193357.8A patent/CN112362664A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001083100A (en) * | 1999-09-14 | 2001-03-30 | Nikko Materials Co Ltd | Surface-inspecting method and device |
| CN204177363U (en) * | 2014-07-02 | 2015-02-25 | 中南大学 | A kind of minute surface ceramic tile flatness on-line measuring device |
| CN108161578A (en) * | 2017-12-06 | 2018-06-15 | 江苏师范大学 | A kind of processing method of elongated optical device end face |
Non-Patent Citations (4)
| Title |
|---|
| 周军: "光学扫描测量技术在汽车产品质量控制中的应用", 《机械工人(冷加工)》 * |
| 戴文斌等: "纺织品及服装洗后外观的评定", 《纺织检测与标准》 * |
| 暖心家居: "刮完腻子后业主这样来检查，师傅一看就说碰上内行人，太专业了", 《HTTPS://BAIJIAHAO.BAIDU.COM/S?ID=1640944862313969778&WFR=SPIDER&FOR=PC》 * |
| 臧联防: "车身外板损伤的判断方法", 《汽车维修技师》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101657277B (en) | Method for detecting and classifying surface defects on continuously cast slabs | |
| US20190080446A1 (en) | System and method for automated defect detection | |
| US10875592B2 (en) | Automobile manufacturing plant and method | |
| CN101356025A (en) | Apparatus and method for the final processing of a forming tool for a sheet-metal body part | |
| CN1220048C (en) | Method for detecting fault of steel-ball surface | |
| KR20230092470A (en) | System and method for sanding automation | |
| US9250478B2 (en) | Sealant coating equipment for liquid crystal panel and its coating method | |
| CN112326669A (en) | Coating defect detection and marking system and method | |
| WO2015080941A1 (en) | Devices and methods for assessment of surfaces | |
| CN112362664A (en) | Method for checking large-surface flatness of rapid workpiece | |
| US9482526B2 (en) | Method for representing the surface of an object | |
| CN105675622B (en) | A kind of industry control glass inspection systems | |
| He et al. | An effective MID-based visual defect detection method for specular car body surface | |
| Guo et al. | Experimental investigation of a modified Beckmann–Kirchhoff scattering theory for the in-process optical measurement of surface quality | |
| JP2010002242A (en) | Visual inspection jig of ball and visual inspection method using it | |
| CN104330413A (en) | Hub inspection bench | |
| CN105973739A (en) | Method for evaluating abrasion resistance of automobile coating paint film | |
| CN108020633B (en) | Method for rapidly identifying defects of coating | |
| CN105203558A (en) | Fluorescent defect detecting device for slewing bearing | |
| CN103353456B (en) | Roll pins having grinding vibration waviness detection method | |
| KR20160076691A (en) | Inspection device for vehicle door | |
| CN106949801A (en) | A kind of finished product detection device for vehicle roof inner decoration plate | |
| CN106197361A (en) | A kind of corrosion resistant plate surface smoothness on-line measuring device | |
| RU47828U1 (en) | WHEEL RESTORATION DEVICE | |
| CN204154659U (en) | A kind of wheel hub check-out console |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210212 |