CN114777693B - Detection device and detection method for detecting flatness of product by using light - Google Patents
Detection device and detection method for detecting flatness of product by using light Download PDFInfo
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- CN114777693B CN114777693B CN202210478816.XA CN202210478816A CN114777693B CN 114777693 B CN114777693 B CN 114777693B CN 202210478816 A CN202210478816 A CN 202210478816A CN 114777693 B CN114777693 B CN 114777693B
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- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
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- 238000003384 imaging method Methods 0.000 claims abstract description 5
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Classifications
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- 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
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a detection device and a detection method for detecting the flatness of a product by using light, comprising a frame, a bottom plate and a positioning jig assembly, wherein the positioning jig assembly comprises a positioning gauge plate detachably arranged on the bottom plate and a lower light source arranged below the positioning gauge plate, a light transmission groove for allowing light to pass through is formed in the positioning gauge plate, a plurality of shooting elements for shooting and identifying the width of overflowing light are circumferentially arranged on the positioning gauge plate in a surrounding manner, the width of the overflowing light is the imaging width of the overflowing light in an image in a gap between a detected surface of the product and a standard surface of the positioning gauge plate, the shooting elements are adjustably arranged on the bottom plate through an adjusting assembly, the shooting elements are in communication connection with a control element, and the control element is in communication connection with a feedback element; through the setting of detection device and detection method, realize the quick accurate detection to product flatness, practice thrift the manpower, improve the high efficiency and the convenience of product testing process, guarantee product quality.
Description
Technical Field
The invention belongs to the technical field of product flatness detection, and particularly relates to a detection device and a detection method for detecting product flatness by using light.
Background
In the production of parts of a mobile phone support, in order to ensure the quality of a product, the flatness of the product is often required to be detected; in the current production, some adopt manual hand to examine utensil clearance gauge and detect the operation gradually, obviously detection efficiency is low, and single machine, personnel waste is serious moreover, also some utilize point laser or line laser to detect, but often can not reach the detection accuracy requirement, the testing result can't guarantee, very easily influence product quality.
Disclosure of Invention
The invention provides a detection device and a detection method for detecting the flatness of a product by using light, which are used for improving the detection efficiency and ensuring the detection precision, in order to overcome the defects of the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a use light to detect detection device of product flatness, includes the frame, install in bottom plate in the frame and be used for the location to install the location tool subassembly of product, location tool subassembly including demountable installation in location on the bottom plate examine the utensil board and install in location examines the lower light source of utensil board below, the location is examined and is offered the light-passing through that is used for supplying light to pass through on the utensil board, the circumference that the utensil board was examined in the location is examined to the location is encircleed and is provided with a plurality of shooting elements that are used for taking the discernment and spill over light width, spill over light width and spill over the imaging width of light in the image in the clearance between the standard face of utensil board is examined in the quilt of product and location, shooting element through adjusting part adjustable install in on the bottom plate, shooting element communication connection has control element, control element communication connection has feedback element.
Preferably, the positioning gauge plate is detachably provided with a contour post for suspending the positioning gauge plate above the lower light source.
Preferably, the positioning gauge plate comprises a base plate, an outline shaping plate fixedly connected to the base plate, profiling tables positioned at two sides of the outline shaping plate, extension tables positioned at the other two sides of the outline shaping plate and a standard table positioned at one side of the extension tables, wherein an internal positioning block for auxiliary positioning is detachably and fixedly connected to the outline shaping plate, the profiling tables are higher than the outline shaping plate in height, the side, facing the outline shaping plate, of the profiling tables is provided with the light-transmitting groove, the extension tables and the top surface of the outline shaping plate are integrally formed, and two ends of the extension tables are respectively detachably provided with an external positioning block for auxiliary positioning; the standard table and the extension table are arranged at intervals, and the light-transmitting groove is formed between the standard table and the extension table.
Preferably, the adjusting assembly comprises a front adjusting block, a rear adjusting block, a front adjusting groove, a rear adjusting groove, an upper adjusting block, a lower adjusting groove, a left adjusting plate, a right adjusting plate and a left adjusting groove, wherein the front adjusting block and the rear adjusting block are detachably arranged on the bottom plate, the front adjusting groove and the rear adjusting groove are formed in the front adjusting block and the rear adjusting block, the upper adjusting block and the lower adjusting block are arranged on the front adjusting block and the rear adjusting block, the upper adjusting groove and the lower adjusting block are arranged on the upper adjusting block and the lower adjusting block, the left adjusting groove and the right adjusting groove are used for installing the shooting element, the left adjusting groove, the rear adjusting groove, the upper adjusting groove, the lower adjusting groove, the left adjusting groove, the right adjusting groove and the right adjusting groove are long grooves and are internally provided with threaded pieces in a penetrating mode, the front adjusting plate and the rear adjusting plate are fixedly connected to the bottom plate through the threaded pieces, and the left adjusting plate and the right adjusting plate are fixedly connected with the shooting element through the threaded pieces.
Preferably, the flatness of the standard surface of the positioning gauge plate is not higher than 0.005mm.
A detection method of a detection device for detecting flatness of a product using light as described above, comprising:
s1, selecting a corresponding positioning gauge plate according to different product specifications, and mounting a product on the positioning gauge plate;
s2, controlling the lower light source to work, respectively shooting images of the areas where the light transmission grooves are located through the shooting elements, and transmitting the images to the control element;
s3, the control element identifies the width of overflowing light in the image shot by each shooting element, and the width of overflowing light is compared with a preset standard value to determine whether the flatness of the product meets the requirement.
Preferably, the preset standard value is 0.2mm.
Preferably, when the width of the overflowing light in the image shot by any one shooting element exceeds a preset standard value, the flatness of the detected plane of the product is determined to be unsatisfactory, and the control element controls the feedback element to send out an alarm and records the value of the width of the overflowing light in each image.
Preferably, the control element identifies the distribution of the overflowing light in the image, so as to judge the flatness problem of the product, if the light is in the distribution of dark in the middle and bright on both sides, the detected surface of the product is judged to be convex downwards, if the light is in the distribution of dark on both sides, the detected surface of the product is judged to be concave upwards, and the judgment result is stored in the control element.
Preferably, when the width of the overflowing light in the image shot by each shooting element is not larger than a preset standard value, the flatness of the detected plane of the product is determined to meet the requirement, and the control element controls the feedback element to perform qualified feedback of the product.
The invention has the technical effects that:
1. the positioning jig assembly of the detection device is used for quick installation and positioning, the plurality of shooting elements which encircle distribution shoot and identify the overflowing light width of each area, and the control element compares the obtained overflowing light width with a preset standard value, so that quick and accurate detection of the flatness of a product is realized, manpower is saved, the high efficiency and convenience of the product detection process are improved, and the product quality is guaranteed.
2. The method has the advantages that the detection is carried out by shooting the image through the shooting element, the detection result can be visualized and parameterized, the preliminary analysis on the flatness problem of the product is facilitated, the follow-up traceability is facilitated through the parameter record, the detection quality of the product is further ensured, and meanwhile, the follow-up production improvement of the product is assisted through the result.
3. Through the detachable construction of location tool subassembly and the setting of adjusting part, can be according to the difference of product specification, install different location tool subassemblies to through the position of adjusting part adaptability adjustment shooting element, thereby when improving detection device's suitability, further guarantee detection device to the quality of detection of product flatness.
Drawings
Fig. 1 is a schematic structural diagram of a detection device.
Fig. 2 is a schematic view of the structure at the adjustment assembly.
Fig. 3 is a schematic structural diagram of the positioning fixture assembly.
Fig. 4 is a schematic structural view of the positioning gauge plate.
Fig. 5 is a schematic top view of the positioning gauge plate.
Fig. 6 is a schematic diagram of the operation of the present detection device.
FIG. 7 is a flow chart of the detection method of the present invention.
The reference numerals of the main technical characteristics in the drawings are as follows: 1. a frame; 2. a bottom plate; 3. positioning jig components; 31. positioning a gauge plate; 311. a base plate; 312. a profile shaping plate; 313. a profiling table; 314. an extension table; 315. a standard table; 316. positioning blocks; 317. an outer positioning block; 4. a lower light source; 5. a photographing element; 51. a front-rear adjusting block; 52. a front-rear adjusting groove; 53. an up-down adjusting block; 54. an up-down adjusting groove; 55. left and right adjusting plates; 56. a left-right adjusting groove; 6. a buzzer; 7. a product; and 8, a light transmission groove.
Detailed Description
The invention is further illustrated by the following detailed description and the accompanying drawings.
As shown in fig. 1-7, a detection device for detecting flatness of a product by using light comprises a frame 1, a bottom plate 2 and a positioning jig assembly 3, wherein the bottom plate 2 is fixedly connected to the frame 1, and the positioning jig assembly 3 is mounted on the bottom plate.
Specifically, the positioning jig assembly 3 includes a positioning gauge plate 31 and a lower light source 4, the lower light source 4 is mounted on the bottom plate 2, the positioning gauge plate 31 includes a base plate 311, an outline shaping plate 312, a profiling table 313, an extension table 314 and a standard table 315, the base plate 311 is detachably mounted above the lower light source 4 through a contour column, the outline shaping plate 312 is fixedly connected to the base plate 311 and is rectangular, and an internal positioning block 316 is fixedly mounted on the outline shaping plate 312 through bolts so as to be correspondingly matched with a groove on a product to assist in clamping and positioning of the product; a profiling table 313 is fixedly connected to the long edges of the two sides of the profile profiling plate 312, and light transmission grooves are respectively formed in one side of the profile profiling plate 312, which is located on the profiling table 313 and faces the profile profiling plate 312, and the profiling table 313 is higher than the top surface of the profile profiling plate 312; the two short sides of the profile shaping plate 312 are fixedly connected with the extension table 314, the extension table 314 is as high as the profile shaping plate 312, two ends of the extension table 314 extend to one side of the profiling table 313 away from the profile shaping plate 312 respectively, and an external positioning block 317 is fixedly arranged on the extension end through bolts so as to further assist in clamping and positioning of the product; the standard table 315 is fixedly connected to the base plate 311 and is located at one side of the extension table 314 far away from the profile shaping plate 312, and is spaced from the extension table 314, and a light transmission groove 8 is formed in a gap between the standard table 315 and the extension table 314 of the base plate 311. For passage of the external light source. The side surfaces of the product can be clamped between the profiling platforms 313 and the outer positioning platforms in a matching way, and the positioning is assisted by the positioning block 316, and the bottom surfaces of the product can be correspondingly abutted on the standard platform 315, the extension platform 314 and the profile profiling plate 312, so that the positioning and mounting of the product are realized.
Further, the top surfaces of the profile shaping plate 312, the extension table 314, the standard table 315 and the profiling table 313 are standard surfaces, and the flatness is not more than 0.005mm.
Further, each side surface of the positioning gauge plate 31 is provided with a shooting element 5, and the shooting element 5 is a camera and is detachably mounted on the bottom plate 2 through an adjusting component; two cameras are respectively arranged on one side of the two long sides of the positioning gauge plate 31, one camera is respectively arranged on one side of the two short sides of the positioning gauge plate, and six cameras are arranged in total and are used for photographing and imaging a detected area corresponding to a product; the camera is used for shooting and identifying the width of overflowing light, and the width of overflowing light is the imaging width of the overflowing light in a photo in a gap between a detected surface of a product and a standard surface of the positioning gauge plate 31.
Further, the adjusting assembly includes a front-rear adjusting block 51, a front-rear adjusting groove 52, an upper-lower adjusting block 53, an upper-lower adjusting groove 54, a left-right adjusting plate 55 and a left-right adjusting groove 56, wherein the front-rear adjusting groove 52, the upper-lower adjusting groove 54 and the left-right adjusting groove 56 are all waist-shaped grooves and are internally penetrated with screw members for fixing, and the screw members can be bolts and nuts; the front adjusting plate and the rear adjusting plate are fixedly connected to the bottom plate 2 through threaded pieces, the upper adjusting plate and the lower adjusting plate are fixedly connected to the front adjusting plate and the rear adjusting plate and are symmetrically provided with two upper adjusting plates and the lower adjusting plate, the left adjusting plate and the right adjusting plate 55 are fixedly connected between the two upper adjusting plates and the lower adjusting plate through threaded pieces, and the shooting element 5 is fixedly connected to the left adjusting plate and the right adjusting plate 55 through threaded pieces.
Further, the shooting element 5 is communicatively connected with a control element, and the control element is a computer.
Further, the control element is electrically connected with a feedback element, and the feedback element can be an indicator light and a buzzer 6.
A method of detection comprising:
s1, selecting a corresponding positioning gauge plate 31 according to different product specifications, and positioning and installing a product on the positioning gauge plate 31;
s2, controlling the lower light source 4 to work, respectively shooting images of the areas where the light transmission grooves are located through the cameras, and transmitting the images to a computer;
s3, the computer identifies the width of overflowing light in the image shot by each shooting element 5, and compares the width with a preset standard value to determine whether the flatness of the product meets the requirement.
Wherein the preset standard value is 0.2mm.
When the width of the overflowing light in the image shot by any one camera exceeds a preset standard value, the flatness of the detected plane of the product is determined to be unsatisfactory, the control element controls the buzzer 6 to give an alarm, and the numerical value of the width of the overflowing light in each image is recorded into the calculation, so that the production of the product is improved subsequently.
In some embodiments, the computer synchronously identifies the distribution of the overflowing light in the image to determine the flatness problem of the product, if the light is in the distribution of dark in the middle and bright on both sides, the detected surface of the product is determined to be convex downward, if the light is in the distribution of bright in the middle and dark on both sides, the detected surface of the product is determined to be concave upward, and the determination result is stored in the computer so as to further improve the production of the product.
When the width of overflowing light in the image shot by each camera is not larger than a preset standard value, the flatness of the detected plane of the product is determined to meet the requirement, and the computer controls the indicator lamp to emit green light.
The above embodiments are merely examples of the present invention, but the present invention is not limited thereto, and the present invention may be applied to similar products, and any person skilled in the art who is skilled in the field of the present invention shall make changes or modifications within the scope of the present invention.
Claims (8)
1. A detecting device for detecting flatness of a product using light, characterized by: the positioning fixture assembly comprises a positioning gauge plate detachably mounted on the bottom plate and a lower light source mounted below the positioning gauge plate, a light transmission groove for allowing light to pass through is formed in the positioning gauge plate, a plurality of shooting elements for shooting and identifying the width of overflowed light are circumferentially arranged on the positioning gauge plate in a surrounding manner, the width of overflowed light is the imaging width of overflowed light in an image in a gap between a detected surface of the product and a standard surface of the positioning gauge plate, the shooting elements are adjustably mounted on the bottom plate through an adjusting assembly, and are in communication connection with a control element which is in communication connection with a feedback element;
the positioning gauge plate comprises a base plate, profile shaping plates fixedly connected to the base plate, profiling tables positioned on two sides of the profile shaping plates, extension tables positioned on the other two sides of the profile shaping plates and a standard table positioned on one side of the extension tables, wherein the profile shaping plates are detachably fixedly connected with positioning blocks for auxiliary positioning, the profiling tables are higher than the profile shaping plates in height, one side, facing the profile shaping plates, of the profiling tables is provided with a light transmission groove, the extension tables and the top surfaces of the profile shaping plates are integrally formed, and outer positioning blocks for auxiliary positioning are detachably arranged at two ends of the extension tables; the standard table and the extension table are arranged at intervals, and the light-transmitting groove is arranged between the standard table and the extension table;
the adjusting component comprises a front adjusting block, a rear adjusting block, a front adjusting groove, a rear adjusting groove, an upper adjusting block, a lower adjusting block, a left adjusting plate, a right adjusting plate and a left adjusting groove, wherein the front adjusting block and the rear adjusting block are detachably arranged on the bottom plate, the front adjusting groove and the rear adjusting groove are formed in the front adjusting block and the rear adjusting block, the upper adjusting block and the lower adjusting block are arranged on the front adjusting block and the rear adjusting block, the upper adjusting groove and the lower adjusting block are formed in the upper adjusting block and the lower adjusting block, the left adjusting groove and the right adjusting groove are used for mounting the shooting element, the left adjusting groove, the rear adjusting groove, the upper adjusting groove, the lower adjusting groove, the left adjusting groove, the right adjusting groove and the right adjusting groove are long grooves and internally provided with threaded pieces in a penetrating mode, the front adjusting plate and the rear adjusting plate are fixedly connected to the bottom plate through the threaded pieces, and the left adjusting plate and the right adjusting plate are fixedly connected with the shooting element through the threaded pieces.
2. A detecting device for detecting flatness of a product using light according to claim 1, characterized in that: the positioning gauge plate is detachably provided with a contour post which is used for suspending the positioning gauge plate above the lower light source.
3. A detecting device for detecting flatness of a product using light according to claim 1, characterized in that: the flatness of the standard surface of the positioning gauge plate is not higher than 0.005mm.
4. A detection method of a detection device for detecting flatness of a product using light according to any one of claims 1 to 3, characterized in that: the detection method comprises the following steps:
selecting corresponding positioning gauge plates according to different product specifications, and mounting products on the positioning gauge plates;
the lower light source is controlled to work, images of the areas where the light-transmitting grooves are located are respectively shot through the shooting elements, and the images are transmitted to the control element;
the control element recognizes the width of overflowing light in the image shot by each shooting element, and compares the width with a preset standard value to determine whether the flatness of the product meets the requirement.
5. The method of claim 4, wherein: the preset standard value is 0.2mm.
6. The method of claim 4, wherein: when the width of the overflowing light in the image shot by any one shooting element exceeds a preset standard value, determining that the flatness of the detected plane of the product is not in accordance with the requirement, controlling the feedback element to send out an alarm by the control element, and recording the value of the width of the overflowing light in each image.
7. A method of testing according to claim 6, wherein: the control element identifies the distribution condition of overflowing light in the image so as to judge the flatness problem of the product, if the light is in the distribution condition of dark in the middle and bright on two sides, the detected surface of the product is judged to be convex downwards, and if the light is in the distribution condition of dark on two sides, the detected surface of the product is judged to be concave upwards, and the judgment result is stored in the control element.
8. The method of claim 4, wherein: when the width of the overflowing light in the image shot by each shooting element is not larger than a preset standard value, the flatness of the detected plane of the product is determined to meet the requirement, and the control element controls the feedback element to feed back qualified products.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210478816.XA CN114777693B (en) | 2022-05-05 | 2022-05-05 | Detection device and detection method for detecting flatness of product by using light |
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| CN202210478816.XA CN114777693B (en) | 2022-05-05 | 2022-05-05 | Detection device and detection method for detecting flatness of product by using light |
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| CN114777693B true CN114777693B (en) | 2024-03-22 |
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