CN108801144B - Device for accurately measuring characteristic dimension of sheet product and application method thereof - Google Patents
Device for accurately measuring characteristic dimension of sheet product and application method thereof Download PDFInfo
- Publication number
- CN108801144B CN108801144B CN201810871746.8A CN201810871746A CN108801144B CN 108801144 B CN108801144 B CN 108801144B CN 201810871746 A CN201810871746 A CN 201810871746A CN 108801144 B CN108801144 B CN 108801144B
- Authority
- CN
- China
- Prior art keywords
- product
- carrier
- module
- bottom plate
- matched
- 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.)
- Active
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses and provides a device for accurately measuring the characteristic dimension of a sheet product, which has the advantages of simple structure, convenient use and good test effect, and a use method thereof. The technical scheme adopted by the invention is as follows: the invention comprises a device for accurately measuring the characteristic dimension of a thin plate product, which comprises a carrier module and an optical test module, wherein the carrier module comprises a carrier bottom plate, an upper top module and a reference panel, a plurality of elastic pressure heads are arranged on the upper surface of the carrier bottom plate, the product is placed on the upper parts of the elastic pressure heads, the lower parts of the reference panel are arranged as reference surfaces matched with the upper surfaces of the product, positioning pins are arranged at a group of diagonal positions of the carrier bottom plate, the reference panel is provided with a guide sleeve, the optical test module comprises light sources arranged in the left direction, the right direction and the lower direction of the carrier module and a camera above the light sources, and the carrier module is provided with a light-transmitting hole position matched with the light sources and the camera. The invention can be used in the technical field of thin plate characteristic dimension measuring devices.
Description
Technical Field
The invention relates to a device for accurately measuring the characteristic dimension of a sheet product and a using method thereof.
Background
Because the thickness of flat plate products such as steel thin flat plate parts is very thin, the flat plate products have certain deformation in the stamping production process, when the characteristic dimension of the flat plate products is measured, the flat plate products are not in a free state, and the flat plate products need to be pressed on a reference plane by using a plurality of pressure surfaces or pressure points, so that a carrier matched with the flat plate products is a design key point.
The existing measurement scheme is to place the measured product on the profiling plane, only limits the movement of X and Y axes, but does not press the product in the Z axis direction, so that the discrepancy of warping, deformation and the like of the product can lead to great difference of measurement results among different products, the poor consistency also leads to low yield of the product, the production waste is increased, and the cost of labor, materials and time is increased. Some existing sheet products are measured manually by means of calipers and the like, unavoidable manual errors can be introduced in manual measurement, the measurement efficiency is low, the labor cost is increased, and a plurality of special-shaped sizes cannot be measured by using tools. Thus creating an optical measurement means. Existing optical measurements typically employ a camera and incorporate a coaxial light beneath the camera to illuminate the product. The disadvantages of this measurement are also evident: when the product size is large or the measured items are distributed far, the field of view of the camera becomes large, so that the cost index is increased; the coaxial light cannot clearly illuminate the side measured item and the special-shaped measured item.
Disclosure of Invention
The invention aims to solve the technical problem of providing the device for accurately measuring the characteristic dimension of the sheet product, which has the advantages of simple structure, convenient use and good test effect, and the application method thereof.
The technical scheme adopted by the invention is as follows: the invention comprises a device for accurately measuring the characteristic dimension of a thin plate product, which comprises a carrier module and an optical test module, wherein the carrier module comprises a carrier bottom plate, an upper top module matched with the bottom of the carrier bottom plate and a reference panel matched with the upper part of the carrier bottom plate, a plurality of elastic pressure heads matched with the appearance of the product are arranged on the upper surface of the carrier bottom plate, the product is placed on the upper part of the elastic pressure heads, the lower part of the reference panel is provided with a reference surface matched with the upper surface of the product, a set of diagonal positions of the carrier bottom plate are respectively provided with a positioning pin, the reference panel is provided with a guide sleeve matched with the positioning pins, the optical test module comprises a light source arranged on the left, right and lower directions of the carrier module and a camera arranged above the light source, and a light hole position matched with the camera is arranged on the carrier module.
In the scheme, the positioning pin and the guide sleeve are matched for alignment, and the upper jacking module is used for jacking the carrier bottom plate from bottom to top, so that a product placed in the carrier bottom plate is compressed between the reference panel and the carrier bottom plate; the carrier base plate uses a plurality of elastic pressure heads, which are unevenly distributed according to the shape characteristics of the product, in order to flatten the product on the reference surface as much as possible. This patent has fixed the product through diversified, makes measuring result uniformity stronger, and the yield is higher. In addition, the measuring scheme of this patent has adopted the camera to shoot from the top of product, and the optical measuring scheme of shining through the light source illumination respectively in three other directions is different from current physical means measurement and single-phase coaxial light measurement, and measuring effect is better. In addition, the patent polishes in the lower part and the side surface to enable the side surface and the special-shaped measured items to be accurately measured.
Further, one of the two positioning pins is a cylindrical pin and the other is a diamond pin.
In the scheme, the two locating pins are designed into a cylindrical pin and a diamond pin which are matched with each other, so that the jamming phenomenon caused by the position error or the installation error of the hole site of the locating pin is prevented.
Further, the upper part of the carrier bottom plate is also provided with a plurality of limit pins matched with the appearance of the product, and the reference panel is provided with abdications for the limit pins.
In the scheme, the limiting pin limits the displacement of the product in the X axis and the Y axis, and ensures the stability of the product in measurement.
Further, the light sources below the carrier module are parallel light sources, and the light sources on the left side and the right side of the carrier module are strip light sources. The light source positioned on the right side of the carrier module is a strip light source, and the light source positioned on the left side of the carrier module is two strip light sources which are arranged at an angle. The number of the cameras is two, and the two cameras are respectively provided with an adjusting moving seat in a matched mode.
In the above-described solution, the parallel light of the bottom is directed upwards, which illuminates the reference hole above the edge of the product. When the camera shoots a product from the upper part, the outline dimension of the product is easy to pick up according to the difference of brightness. The side light source can be used for lighting the side characteristics and the corner characteristics, so that the camera can conveniently recognize and measure the special-shaped size. The upper two cameras are distributed in the front and rear of the product, respectively, each of which is responsible for measuring the characteristic dimensions of a portion of the product. The two cameras can be used for effectively controlling the size of the field of view of each camera, so that the cost is controlled. Each camera is secured to a separate back plate and each back plate is secured to a separate adjustable mechanism. The height of the camera and the deflection of the front angle, the rear angle, the left angle and the right angle can be adjusted by adjusting the movable seat, and the aim of adjustment is to enable each camera to be exactly at the focus of the camera when shooting the product, so that the clearest photo is shot.
Further, the upper pushing module comprises an upper pushing block and a flat pushing block fixedly arranged at the top of the upper pushing block, and a light transmission groove matched with the light source positioned below is formed below the position to be measured of the characteristic dimension of the product.
The invention also includes a method of using a device for accurately measuring the characteristic dimensions of a sheet product, comprising the steps of:
A. the positions of the light source and the camera in the optical test module are debugged, so that the camera has the best shooting effect;
B. placing the product on the upper part of an elastic pressure head of a carrier bottom plate;
C. the upper jacking module acts to jack the carrier bottom plate, and the carrier bottom plate and the reference panel are aligned in a positioning way through the cooperation of the positioning pin and the guide sleeve;
C. the upper surface of the product is clung to the datum plane of the datum plate;
D. and starting a light source of the optical test module and a switch of a camera, and shooting a characteristic dimension to-be-measured position of the upper surface of the product by the camera to finish measurement.
In the scheme, the method enables the device to measure the characteristic dimension of the flat plate type more accurately and has better effect.
Drawings
FIG. 1 is a schematic view of a carrier module according to the present invention;
FIG. 2 is a schematic diagram of an optical test module according to the present invention;
FIG. 3 is a schematic view of another angle of the optical test module according to the present invention.
Description of the embodiments
As shown in fig. 1 to 3, the specific embodiments of the present invention are: the invention comprises a device for precisely measuring the characteristic dimension of a thin plate product, which comprises a carrier module and an optical test module, wherein the carrier module comprises a carrier bottom plate 1, an upper top module 2 matched with the bottom of the carrier bottom plate 1 and a reference panel 3 matched with the upper part of the carrier bottom plate 1, a plurality of elastic pressure heads 4 matched with the appearance of the product are arranged on the upper surface of the carrier bottom plate 1, the product is placed on the upper part of the elastic pressure heads 4, the lower part of the reference panel 3 is provided with a reference surface 5 matched with the upper surface of the product, a set of diagonal positions of the carrier bottom plate 1 are respectively provided with a positioning pin 6, the reference panel 3 is provided with a guide sleeve matched with the positioning pins 6, the optical test module comprises a light source arranged on the left, right and lower directions of the carrier module and a camera 7 arranged above, and a light transmitting hole position matched with the light source and the camera 7 is arranged on the carrier module. In the scheme, the matching of the locating pin 6 and the guide sleeve is used for aligning, and the upper jacking module is used for jacking the carrier bottom plate 1 from bottom to top, so that a product placed in the carrier bottom plate 1 is compressed between the reference panel 3 and the carrier bottom plate 1, and the product is flatly pressed on the reference surface 5, so that the warping and deformation of the product are overcome, the measurement consistency of the product is improved, and the cost of the whole production process is reduced; the carrier base plate 1 uses a plurality of elastic rams 4, which are unevenly distributed according to the shape characteristics of the product, in order to flatten the product as much as possible on the reference surface 5. This patent has fixed the product through diversified, makes measuring result uniformity stronger, and the yield is higher. In addition, the measuring scheme of this patent has adopted camera 7 to shoot from the top of product, and in addition all shines the optical measuring scheme of polishing through the light source illumination respectively in three direction, is different from current physical means measurement and single-phase coaxial light measurement, and measuring effect is better. In addition, the patent polishes in the lower part and the side surface to enable the side surface and the special-shaped measured items to be accurately measured. Wherein the reference surface 5 provides a pressed reference for the measured product, it should be noted that the design of the reference surface 5 needs to refer to the shape of the product itself, not necessarily a plane, but a combination of planes with different heights, and the flatness and parallelism of each plane need to be controlled within 0.02 mm. In addition, according to the position of the measured size of the product, a hole site and a avoidance position are required to be reserved on the reference surface 5, so that the size characteristics can be clearly shot by the camera 7 above. If the reference surface 5 is designed to be a large plane, after the product is pressed on the reference surface 5, the product may be stuck on the reference surface 5 and cannot fall due to suffocation and other reasons, and the problem can be solved by designing some air passages on the reference surface 5 and discharging suffocating air. The carrier base plate 1 is designed according to the size of the product, and the compression stroke of the elastic pressure head is controlled by a plurality of steps. Finally, the elastic pressing heads 4 are introduced, and are also the key points of the carrier module, and the carrier module is provided with 15 elastic pressing heads 4 which are distributed at the positions of each edge and step of the product, so that the product can be perfectly attached to the reference surface 5. Each elastic pressing head 4 is composed of a pressing block made of steel, a spring providing elasticity, and a back plate restricting the spring. In this example, a smaller spring with a 5mm length and a spring constant of 5N/mm was used. The 15 springs provide a pressure of 10n±2n at a preset compression. According to the characteristics of the product, such as material, weight, shape and the like, the design of the spring and the pressure head needs to be corrected in a targeted manner. In addition, it should be noted that, in the design of the elastic pressing head 4, aging needs to be performed for a certain number of times (more than 10000 times are recommended) before shipment, and the defects of fine burrs and the like in the structure after aging can be ground off, so that the movement is smoother.
Further, two positioning pins 6 are cylindrical pins and diamond pins. In this scheme, two locating pins 6 are designed into a cylindrical pin and a diamond pin which are matched with each other, so as to prevent the jamming phenomenon caused by the position error or the installation error of the hole position of the locating pin 6.
Further, a plurality of limit pins 9 matched with the shape of the product are further arranged on the upper portion of the carrier bottom plate 1, and the reference panel 3 is provided with abdications for the limit pins 9. In this scheme, spacing pin 9 has restricted the displacement of product in X axle and Y axle, guarantees the stability of product in the measurement. The limit pins 9 are divided into 8 groups, and the 8 limit pins 9 limit the displacement of the product in the X axis and the Y axis, so that the stability of the product in measurement is ensured.
Further, the light sources below the carrier module are parallel light sources 80, and the light sources on the left and right sides of the carrier module are bar-shaped light sources 81. The light source at the right side of the carrier module is a strip light source 81, and the light source at the left side of the carrier module is two strip light sources 81 which are arranged at an angle. The number of the cameras 7 is two, and the two cameras 7 are respectively provided with an adjusting moving seat 10 in a matching way. In this arrangement, the parallel light at the bottom is directed upwards, illuminating the reference hole above the edge of the product. When the camera 7 shoots a product from above, the outline dimension of the product is easily picked up according to the difference of brightness. While the side light source can be used to illuminate the side features and some corner features, facilitating the recognition and measurement of this profile by the camera 7. The upper two cameras 7 are distributed in front and in rear of the product, respectively, each camera 7 being responsible for measuring the characteristic dimensions of a portion of the product. The use of two cameras 7 allows for efficient control of the field of view of each camera 7 and thus the cost. Each camera 7 is fixed to a separate back plate and each back plate is fixed to a separate adjustable mechanism. The height of the camera 7 and the deflection of the front and back and left and right angles can be adjusted by adjusting the movable seat 10, and the purpose of adjustment is to enable each camera to be exactly at the focus of the camera when shooting the product, so that the clearest photo is shot. The mutual position between the two cameras 7 requires calibration of the position, the method is as follows: firstly, manufacturing a standard calibration block made of glass material, wherein a plurality of circles are required to be sprayed or etched at a preset position on the calibration block; then placing the calibration block under the two lenses, shooting and calculating the distance between the two circles; this distance is compared with the physical distance between the actual circles and the camera 7 is compensated for the record. The relative positions of the two cameras after calibration can not move any more, and if the two cameras move, refocusing and calibration are needed.
Further, the upper top module 2 comprises an upper pushing block 11 and a flat pushing block 12 fixedly arranged at the top of the upper pushing block 11, and a light transmission groove matched with the light source positioned below is formed below the position to be measured of the characteristic dimension of the product of the upper top module 2.
The invention also includes a method of using a device for accurately measuring the characteristic dimensions of a sheet product, comprising the steps of:
A. the positions of the light source and the camera 7 in the optical test module are debugged, so that the camera 7 has the best shooting effect;
B. placing the product on the upper part of an elastic pressure head 4 of the carrier bottom plate 1;
C. the upper jacking module 2 acts to jack the carrier bottom plate 1, and the carrier bottom plate 1 and the reference panel 3 are aligned in a positioning way through the cooperation of the positioning pin 6 and the guide sleeve;
D. the upper surface of the product is tightly attached to the reference surface 5 of the reference panel 3, so that the deformation of the product is prevented;
E. and starting the light source of the optical test module and the switch of the camera 7, and shooting the characteristic dimension to-be-measured position of the upper surface of the product by the camera 7 to finish measurement.
In the scheme, the method enables the device to measure the characteristic dimension of the flat plate type more accurately and has better effect.
The invention can be used in the technical field of thin plate characteristic dimension measuring devices.
Claims (4)
1. An apparatus for accurately measuring the characteristic dimensions of a sheet product, comprising: the device comprises a carrier module and an optical test module, wherein the carrier module comprises a carrier bottom plate (1), an upper top module (2) matched with the bottom of the carrier bottom plate (1) and a reference panel (3) matched with the upper part of the carrier bottom plate (1), a plurality of elastic pressure heads (4) matched with the shape of a product are arranged on the upper surface of the carrier bottom plate (1), the product is placed on the upper part of the elastic pressure heads (4), the lower part of the reference panel (3) is provided with a reference surface (5) matched with the upper surface of the product, a group of diagonal positions of the carrier bottom plate (1) are respectively provided with a positioning pin (6), the reference panel (3) is provided with a guide sleeve matched with the positioning pins (6), the optical test module comprises a light source arranged on the left, the right and the lower directions of the carrier module and a camera (7) arranged above, and the carrier module is provided with a light through hole matched with the light source and the camera (7);
the light sources positioned below the carrier module are parallel light sources (80), and the light sources positioned at the left side and the right side of the carrier module are strip light sources (81); the light source positioned on the right side of the carrier module is a strip-shaped light source (81), and the light source positioned on the left side of the carrier module is two strip-shaped light sources (81) which are arranged at an angle;
two positioning pins (6) are cylindrical pins and diamond pins;
the upper part of the carrier bottom plate (1) is also provided with a plurality of limit pins (9) which are matched with the appearance of the product, and the reference panel (3) is provided with abdications for the limit pins (9).
2. An apparatus for accurately measuring the characteristic dimensions of a sheet product in accordance with claim 1, wherein: the number of the cameras (7) is two, and the two cameras (7) are respectively provided with an adjusting moving seat (10) in a matched mode.
3. An apparatus for accurately measuring the characteristic dimensions of a sheet product in accordance with claim 1, wherein: the upper jacking module (2) comprises an upper pushing block (11) and a flat pushing block (12) fixedly arranged at the top of the upper pushing block (11), and a light transmission groove matched with the light source positioned below is formed below the characteristic dimension to be measured position of the product in the upper jacking module (2).
4. A method of using the apparatus for accurately measuring the characteristic dimensions of a sheet product of claim 1, comprising the steps of:
A. the positions of the light source and the camera (7) in the optical test module are debugged, so that the camera (7) has the best shooting effect;
B. placing the product on the upper part of an elastic pressure head (4) of a carrier bottom plate (1);
C. the upper jacking module (2) acts to jack the carrier bottom plate (1), and the carrier bottom plate (1) and the reference panel (3) are aligned in a positioning way through the cooperation of the positioning pins (6) and the guide sleeve;
D. the upper surface of the product is tightly attached to a reference surface (5) of the reference panel (3);
E. and starting the light source of the optical test module and the switch of the camera (7), and shooting the characteristic dimension to-be-measured position of the upper surface of the product by the camera (7) to finish measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810871746.8A CN108801144B (en) | 2018-08-02 | 2018-08-02 | Device for accurately measuring characteristic dimension of sheet product and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810871746.8A CN108801144B (en) | 2018-08-02 | 2018-08-02 | Device for accurately measuring characteristic dimension of sheet product and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108801144A CN108801144A (en) | 2018-11-13 |
| CN108801144B true CN108801144B (en) | 2023-08-29 |
Family
ID=64079089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810871746.8A Active CN108801144B (en) | 2018-08-02 | 2018-08-02 | Device for accurately measuring characteristic dimension of sheet product and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108801144B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201740508U (en) * | 2010-05-29 | 2011-02-09 | 浙江工业职业技术学院 | Large-field image measurement instrument |
| CN104567697A (en) * | 2015-01-21 | 2015-04-29 | 苏州博众精工科技有限公司 | Component height difference detecting device |
| CN105606024A (en) * | 2015-12-31 | 2016-05-25 | 深圳富强智能系统科技有限公司 | Detection apparatus and detection method for mobile phone dimension |
| CN108062265A (en) * | 2017-12-22 | 2018-05-22 | 深圳市芬能自动化设备有限公司 | Computer main board test loaded tool |
| CN108332675A (en) * | 2017-11-14 | 2018-07-27 | 苏州华智诚精工科技有限公司 | A kind of type semienclosed circular hole measuring device tool and its measurement method |
| CN208536780U (en) * | 2018-08-02 | 2019-02-22 | 珠海市运泰利自动化设备有限公司 | A kind of device of precise measurement light sheet products characteristic size |
-
2018
- 2018-08-02 CN CN201810871746.8A patent/CN108801144B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201740508U (en) * | 2010-05-29 | 2011-02-09 | 浙江工业职业技术学院 | Large-field image measurement instrument |
| CN104567697A (en) * | 2015-01-21 | 2015-04-29 | 苏州博众精工科技有限公司 | Component height difference detecting device |
| CN105606024A (en) * | 2015-12-31 | 2016-05-25 | 深圳富强智能系统科技有限公司 | Detection apparatus and detection method for mobile phone dimension |
| CN108332675A (en) * | 2017-11-14 | 2018-07-27 | 苏州华智诚精工科技有限公司 | A kind of type semienclosed circular hole measuring device tool and its measurement method |
| CN108062265A (en) * | 2017-12-22 | 2018-05-22 | 深圳市芬能自动化设备有限公司 | Computer main board test loaded tool |
| CN208536780U (en) * | 2018-08-02 | 2019-02-22 | 珠海市运泰利自动化设备有限公司 | A kind of device of precise measurement light sheet products characteristic size |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108801144A (en) | 2018-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104483106A (en) | Online flip LED chip detection device | |
| CN109830198B (en) | Impedance detection device | |
| CN103389046A (en) | Automatic thin plate measuring device with compound measuring function | |
| CN104483617A (en) | Online flip LED chip detection device | |
| CN207365908U (en) | Dimension measuring device | |
| CN108801144B (en) | Device for accurately measuring characteristic dimension of sheet product and application method thereof | |
| CN103411755B (en) | A kind of optical testing device | |
| CN208536780U (en) | A kind of device of precise measurement light sheet products characteristic size | |
| CN102922448B (en) | Clamping device of blade type precision forging part | |
| CN219843791U (en) | Alignment mounting equipment | |
| CN110530267B (en) | Width dimension measuring device for appearance inspection of small-sized battery | |
| CN114701262B (en) | Multi-independent nozzle printing equipment for non-flat substrate surface and printing method thereof | |
| CN203405179U (en) | Automatic thin plate measure apparatus with composite measure function | |
| US3021603A (en) | Gauging device | |
| CN208350941U (en) | A kind of ICT automatic aligning test machine | |
| CN209560974U (en) | A kind of impedance detection device | |
| CN108687346B (en) | Adjusting device and adjusting method for forming cylinder of laser selective melting equipment | |
| CN207675139U (en) | One-touch 3D profile measurers | |
| CN206292511U (en) | A kind of light apparatus test device of fixed projector distance | |
| TWI414792B (en) | A sensing device for electronic components | |
| CN218520590U (en) | Vacuum chuck leveler for substrate glass | |
| CN109342438A (en) | Macro head detection device | |
| CN220039382U (en) | Grating ray combined type inspection platform | |
| CN209877884U (en) | Device for testing optical axis position degree of cutting lens | |
| CN210892999U (en) | Automatic detection device for overall dimension of light guide plate |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |