CN101806592B - On-line double-sided automatic thickness measuring device of organic glass - Google Patents
On-line double-sided automatic thickness measuring device of organic glass Download PDFInfo
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- CN101806592B CN101806592B CN2010101643255A CN201010164325A CN101806592B CN 101806592 B CN101806592 B CN 101806592B CN 2010101643255 A CN2010101643255 A CN 2010101643255A CN 201010164325 A CN201010164325 A CN 201010164325A CN 101806592 B CN101806592 B CN 101806592B
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Abstract
The invention relates to an on-line double-sided automatic thickness measuring device of organic glass, which mainly comprises a control system, a machine frame, a support frame, a detection frame, a cross beam, a cross beam regulator, a feeding distance measuring device and a plurality of thickness measuring devices, wherein the upper end of the machine frame is fixedly connected with the detection frame, the cross beam is connected onto the upper edge frame of the detection frame through the cross beam regulator, the inside of the detection frame is fixedly connected with the support frame, a plurality of support guide shafts are arranged on the support frame, a feeding speed measuring device is arranged at one end of any support guide shaft for measuring the feeding distance of an organic glass plate, the thickness measuring device comprises upper thickness measuring units and lower thickness measuring units, and a plurality of upper thickness measuring units and lower thickness measuring units are respectively and symmetrically arranged on the cross beam and the detection frame for detecting the thickness information of the front side and the back side of multi-point positions of the organic glass plate. Because the control system is used for processing and calculating the position information of entity space three-dimensional lattices of the organic glass in real time for confirming the dimension quality of the plates, the on-line double-sided automatic thickness measuring device has the advantage of simple and compact structure, and can be directly arranged at a production line for real-time measurement.
Description
Technical field
The present invention relates to a kind of organic plates production line testing tool, is a kind of double-sided automatic thickness measuring device that the organic glass production line is measured thickness of slab in real time that is used for specifically.
Background technology
A lot of sheet materials have very high requirement to plate surface evenness, thickness, for the less sheet material of size, survey instrument hand dippings such as usual thickness milscale, but, utilize the survey instrument manual measurement for the big sheet material of dimensions, error is bigger, and must after production is finished, finish process of measurement in addition separately, carrying inconvenience is wasted time and energy, be unfavorable for improving production, detection efficiency, therefore can seem particularly important in production measurement in real time simultaneously.
In the prior art, part fine measuring instrument all is photoelectric measurements such as employing laser, its measuring accuracy can reach 1 micron, as the patent No. is 96118912.6 disclosed paper thickness dynamic measuring tech, adopts the Fibre Optical Sensor principle to paper surface scan induction variation in thickness, and its structure is loaded down with trivial details, technical sophistication, make and the use cost height, mostly be applicable to the scientific research use, can't popularization and application in actual production.Laser and ultrasound wave etc. require high metering system to environment and medium, are subject to the external environment influence, and measuring error is big, complex steps.Especially it is at one's wit's end to the organic plates on-line measurement, repeatedly with laser research institute and checkout equipment research and development unit testing and verification.Except that above-mentioned contactless measurement, common surveying instrument uses Mechanical Contact formula sheet material measurement thickness in addition, as the patent No. is the 200720189904.9 disclosed roll-type sheet metal thickness apparatus for measuring distribution that touch, it is fixed in the corresponding roller that fixedly touches in carrying roller top of frame lower, touch roller and upwards connect touch base and guide rod, guide rod is connected with the instrument that reads that is fixed in upper rack, advance sheet material by carrying roller traction in real time, by touching roller contact sheet material upper surface sheet material measurement thickness, by reading instrument image data signal, analyze sheet metal thickness, parameters such as flatness, the weak point of this measurement mechanism is: when touching the roller sheet material measurement, along with the plate surface difference of situation everywhere, and touch unsteady contact the between roller and the sheet material, in sheet metal thickness measuring accuracy scope, it is inaccurate to touch the roller measurement data, and degree of accuracy is low; The sheet material back support is on carrying roller in addition, along with the sheet material back side difference of situation everywhere, more or less has the gap between carrying roller and sheet material, measure the sheet material upper surface to the carrying roller distance even if touch roller, wherein also exist, had a strong impact on measuring accuracy, poor practicability than mistake; Sheet material enters when touching the roller below, the sheet metal thickness sudden change is directly born by fixed sturcture the sheet material direct of travel impulsive force of touching roller, reduce machine serviceable life, produce vibration again, measurement can't be carried out, and sheet metal thickness direction impulsive force upwards acts on through guide rod and reads instrument, and impulsive force does not have buffering, the fragile instrument that reads influences measuring accuracy and reduction of service life; Measured by electric-motor drive carrying roller traction sheet material, the motor operational vibration is big, and carrying roller supports the sheet material vibration and causes board measure inaccurate; The counterweight of touching on the roller is unreliable, and is overweight as counterweight, is unfavorable for that sheet material enters to touch between roller and carrying roller, and the easy damaged plate surface kicks the beam as counterweight, and counterweight is easily flicked on high-speed production lines, can't normally measure.
Summary of the invention
Unreasonable in order to solve in the prior art contact type measurement sheet metal thickness structural design, serviceable life is short, measuring accuracy is low, error is bigger, measurement data is inaccurate, accurate deficiencies such as sheet material measurement actual (real) thickness, flatness the purpose of this invention is to provide a kind of compact conformation, reasonable in design, long service life, measuring accuracy height, error is little, data are accurate, accurately the on-line double-sided automatic thickness measuring device of organic glass of sheet material measurement thickness, flatness.
The technical solution used in the present invention is: a kind of on-line double-sided automatic thickness measuring device of organic glass, mainly contain control system, frame, bracing frame, detect framework, crossbeam, the crossbeam regulating device, feeding distance measurement mechanism and a plurality of measurer for thickness, the fixedly connected detection framework in frame upper end, crossbeam is connected on the upper side frame that detects framework through the crossbeam regulating device, detect the framework internal fixation and connect bracing frame, bracing frame is provided with many support guide axles, its technical characterictic is that described feeding distance measurement mechanism adopts the swing offset sensor, and the swing offset sensor is arranged at an end of arbitrary support guide axle; Described a plurality of thickness measuring device includes, following thickness measuring unit, described a plurality of thickness measuring unit of going up evenly is arranged on the crossbeam, last thickness measuring unit includes linear displacement transducer, spring, axle, lever, register pin and two guide wheels, linear displacement transducer and axle all are fixed on the crossbeam, lever is connected on the axle through bearing, the lever two ends connect two guide wheels respectively, two guide wheels all are connected the two ends of lever through two bearings, the any end of lever connects an end of spring, be fixed with register pin on the crossbeam of the lever one end top of mounting spring, the other end of spring is fixed on the crossbeam, the guide wheel of any end of the test probe of linear displacement transducer and lever movable contact condition in vertical direction; It is described that the thickness measuring unit structure is identical with last thickness measuring unit down, a plurality of down thickness measuring units evenly are fixed on the lower frame that detects framework and are symmetrical arranged with a plurality of thickness measuring unit of going up on the crossbeam, and the linear displacement transducer of following thickness measuring unit, spring, axle and register pin all are fixed on the lower frame that detects framework; The equal connection control system of the linear displacement transducer of swing offset sensor and upper and lower thickness measuring unit.Poly (methyl methacrylate) plate enters and detects in the framework on the production line, on the support guide roller of bracing frame, advance and by the speed of feed measurement mechanism of support guide axle one end with sheet material speed of feed DATA REASONING and transport to control system, the speed of feed measurement mechanism adopts digital sensors such as swing offset sensor, photoelectric encoder or Hall element, also can adopt counters such as mileage wheel.The swing offset sensor is arranged at support guide axle one end, thereby the anglec of rotation of real-time detection support guide axle is calculated sheet material feeding distance on the support guide axle, the swing offset sensor adopts photoelectric encoder, the precision height, and digital signal is easily transmitted, easily computing and anti-interference; Sheet material enters simultaneously, between the following thickness measuring unit, sheet material backs down, on the following thickness measuring unit respectively near two guide wheels of poly (methyl methacrylate) plate, guide wheel is this dot position information of sheet material in the displacement of vertical direction, the guide wheel of the lever other end is rotated in the displacement scalar that displacement scalar that vertical direction descends equals the guide wheel vertical direction rising that contact with sheet material around axle, sheet material sampling point position information is through two guide wheel transmission, linear displacement transducer adopts fine measuring instruments such as digital display type numeral indicating gauge or differential transformer, timing signal is more flexible, the precision height, the test probe of linear displacement transducer and lever do not contact the guide wheel movable contact condition in vertical direction of sheet material, sheet material is last, advance between the following thickness measuring unit, linear displacement transducer is exported sheet material upper and lower surface sampling point position data in real time to control system, calculate thickness of slab by it, the a plurality of thickness measuring units that distribute on the sheet material Width are measured multiple spot position data and input control system on the sheet material Width, control system is incorporated into to range data and sheet material each point position data, gather the thickness information of each point in enterprise's regulation sheet material unit area, as calculated comprehensively, the size quality of this each batch products of specification is determined in comparison and match; Every guide wheel is connected on the lever through two bearings, guarantees that guide wheel does not have side-sway on lever, and it is more accurate that guide wheel transmits positional information; Be connected with spring on the lever, when lever rotated, the guide wheel that contacts with sheet material was subjected to acting force of the spring to hold out against sheet material all the time, prevented that it from beating in traveling process of sheet material and influence measuring accuracy, and guide wheel contacts with sheet material closely, and sheet metal thickness is measured and transmitted accurately; Register pin and spring are used can guarantee resetting accurately of lever, guarantees that testing element can outrange; Being used of lever and guide wheel can guarantee that the intensity of impacting weakens, and direction changes, and structure and measuring sensor are not exerted an influence, and has at utmost avoided generation of vibration, guarantees that precision and apparatus structure and measuring sensor do not damage;
Described crossbeam regulating device comprises elevating screw and reducing motor, the reducing motor connection control system, the fixedly connected crossbeam in elevating screw bottom, fixed position, crossbeam two ends sensor, the elevating screw middle part is connected on the upper side frame that detects framework through the leading screw nut, reducing motor is fixed in the detection framework, and connects feed screw nut through gear pair.Control system control reducing motor is realized the adjusting of crossbeam upper and lower position through the rotation of gear pair drive feed screw nut thereby feed screw nut drives the elevating screw slip, and the crossbeam position is fed back in real time and guaranteed to adjust precision, and the thickness of slab benchmark is provided simultaneously;
Described elevating screw is a ball-screw, and the inner automatic anti-backlash of feed screw nut has been eliminated the gap between elevating screw and feed screw nut, prevent the crossbeam shake, ball-screw precision height responds fast simultaneously, life-span is long, has further improved the real-time of testing tool degree of accuracy and online detection, reliability; Described reducing motor adopts the meter specially motor of charged magnetic brake, steadily locatees so can realize the crossbeam optional position, and adopts crossbeam position feedback, degree of accuracy height.
Support frame as described above at first is positioned at and detects in the framework, and the bracing frame periphery is fixed on the frame through adjustable bolt again, bracing frame double fixed, accurate positioning, precision height, one-piece construction good rigidly;
Described test probe is the plane with the end of the guide wheel contact that does not contact sheet material, guarantee truly to reflect the situation that contacts of sheet material and guide wheel, it is errorless that thickness of slab is transmitted, help improving measuring accuracy, and make things convenient for the displacement transducer adjustment, guide wheel contacts durable resistance to wearing with the probe plane rolling simultaneously, has prolonged the sensitive element life-span, improves the complete machine performance;
Be equipped with the position displacement sensor on the left and right frame of described detection framework.Control system is regulated the crossbeam lifting, two displacement transducers are measured crossbeam two ends height and position respectively and will be recorded positional information and are delivered to control system, control system is by algorithm computation crossbeam two ends height flat average, feeding back to motor adjusts crossbeam and goes up the thickness measuring unit position, and enter computing machine as the reference information of calculated thickness, need not manual shift, adapt to the board measure requirement of all size, applied widely.
Adopt above technical scheme, the invention has the beneficial effects as follows:
1, the bracing frame setting-in is fixed in the detection framework on the support and bracing frame is peripheral is fixed on the frame through adjustable bolt, the bracing frame double fixed, and the bracing frame good rigidly, the positional precision height is fit to online board measure and uses.Can automatically controlled adjusting crossbeam position in detecting framework stepless adjustable, crossbeam drives goes up thickness measuring unit lifting in detecting framework detection space, satisfy different size measurement in the certain limit, give control system by the displacement transducer feedback crossbeam position of detecting the framework both sides, control the reservation measurement clearance of upper and lower thickness measuring unit, avoided preset clearance excessive and can't sheet material measurement thickness or the too small sheet material of preset clearance impact excessive to guide wheel, and preset clearance is direct as calculating primary data, can effectively be guaranteed measuring accuracy;
2, adopt upper and lower thickness measuring unit sheet material measurement front and back lattice position information respectively, calculate thickness of slab through control system, avoided traditional monolateral measurement to ignore of the influence of another side flatness to measurement result, the guide wheel of thickness measuring unit contacts with linear displacement transducer closely with sheet material, guide wheel simultaneously, thickness information transmitting accuracy height, measuring accuracy can reach 0.05mm; On the high speed flow production line, sheet material has certain impulsive force to upper and lower thickness measuring unit when entering upper and lower thickness measuring unit, impulsive force is after guide wheel, lever, spring are subdued and be reverse, linear displacement transducer is had no effect, register pin plays position-limiting action to lever when lever resets, the linear displacement transducer power that also is not hit, instrument service precision height, life-span are long;
3, adopt the feeding distance Displacement Measurement sensor of support guide axle one end to survey support guide axle anglec of rotation displacement in the sheet material feeding process, thereby accurately measure every block of sheet material supplying position information in thickness measurement equipment, the measurement of angle has simultaneously guaranteed that also displacement measurement need not zero clearing, the increment type displacement calculating, be more suitable for the no maximum cumulative measurement on the production line, supplying position information is in conjunction with the positional information of sheet material Width multiple spot, automatically calculate each point thickness of slab and storage by control system, show and defective warning, and can be equipped with automatic output device and also data can be imported ERP system, realize the online detection of board materials production in the real-time coding of plate surface, record and quality control.
4, adopt difference to calculate thickness of slab, utilize closed dimension chain, make the thickness of slab size only relevant with measuring sensor precision and sample frequency, can realize the measuring accuracy of 0.05mm, indifference is applicable to the online detection of various sheet materials.
The present invention adopts the thickness information at front, upper and lower thickness measuring unit sheet material measurement multiple spot position, the back side, fit into to distance-measuring device sheet material measurement feeding distance, the positional information of being handled, calculated sheet material entity space three-dimensional lattice by control system in real time is to confirm the size quality of sheet material, it is simple in structure, compact, can be directly installed in the panel production line and measure in real time, need to need not artificial intervention the artificial input except that changing specification, easy to use, measuring accuracy height, error are little, measurement result can be widely used in all kinds of sheet metal thicknesses and measure accurately, comprehensively.
Description of drawings
Figure 1 shows that structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation of upper and lower thickness measuring unit of the present invention.
Among the figure: frame 1, bracing frame 2, support guide axle 3, speed of feed measurement mechanism 4, detect framework 5, crossbeam 6, reducing motor 7, elevating screw 8, feed screw nut 9, left position displacement sensor 10, right position displacement sensor 11, last thickness measuring unit 12, following thickness measuring unit 13, linear displacement transducer 14, test probe 141, axle 15, lever 16, guide wheel 17,18, spring 19, register pin 20, control system 21, organic glass 22.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Shown in Fig. 1,2, on-line double-sided automatic thickness measuring device of organic glass mainly comprises frame 1, bracing frame 2, feeding distance measurement mechanism 4, detects framework 5, crossbeam 6, reducing motor 7, elevating screw 8, measurer for thickness and control system 21.Frame 1 is provided with and detects framework 5, detect framework 5 internal fixation and connect bracing frame 2, the periphery of bracing frame 2 is fixed on the frame 1 through adjustable bolt, level is provided with many support guide axles 3 on the bracing frame 2, one end of arbitrary support guide axle 3 is provided with speed of feed measurement mechanism 4, speed of feed measurement mechanism 4 adopts the swing offset sensor to survey the support guide axle anglec of rotation, speed of feed measurement mechanism 4 connection control system 21; Detect the left side of framework 5, be respectively equipped with left position displacement sensor 10 and right position displacement sensor 11 on the left frame, connect elevating screws 8 through leading screw nut 9 on the upper side frame of detection framework 5, feed screw nut 9 connects reducing motor 7 through gear pair, elevating screw 8 bottom fixed cross beams 6, left side position displacement sensor 10 and right position displacement sensor 11 detect the position of crossbeam 6, evenly fixedly connected some thickness measuring units 12 of going up on the crossbeam 6, evenly fixedly connected some thickness measuring units 13 down on the lower frame of detection framework 5, on, following thickness measuring unit is symmetrical arranged, reducing motor 7, a left side, right position displacement sensor 10,11 and last, following thickness measuring unit 12,13 equal connection control system 21.
Upward thickness measuring unit 12 shown in Figure 3 and following thickness measuring unit 13 are symmetricly set in the both sides up and down of poly (methyl methacrylate) plate 22, and last thickness measuring unit 12 mainly comprises linear displacement transducer 14, axle 15, lever 16, guide wheel 17,18 and spring 19.Linear displacement transducer 14 and axle 15 all are fixed on the crossbeam 6, linear displacement transducer 14 connection control system 21, axle 15 connects lever 16 through bearing, the two ends of lever 16 connect guide wheel 17,18 through bearing respectively, guide wheel 17 contacts with the test probe 141 of linear displacement transducer 14, guide wheel 18 contacts with sheet material 22 to be measured, connect spring 19 1 ends on lever 16 1 ends of connection guide wheel 17, spring 19 other ends are fixed on the crossbeam 6, and the lever one end top that connects spring 19 is provided with the register pin 20 that is fixed on the crossbeam 6; The structure of following thickness measuring unit 13 and last thickness measuring unit 12 are identical and go to upper and lower and be symmetrical arranged, and the displacement transducer of following thickness measuring unit 13, axle, spring all are fixed on the lower frame that detects framework 5.
The course of work of this on-line double-sided automatic thickness measuring device of organic glass is:
1, install, debugging: on the organic glass production line, measuring thickness device is installed,, is made that support guide axle 3 is corresponding with production line is convenient to send into organic glass 22 according to production line height control measuring thickness device frame 1 height; Press production line and produce sheet metal thickness adjustment crossbeam 6 height, select sheet material thickness measure preset clearance;
2, sheet material feeding: the poly (methyl methacrylate) plate on the production line is sent on the measuring thickness device support guide axle 3, and the swing offset sensor of support guide axle 3 one ends is surveyed support guide axle 3 anglecs of rotation simultaneously, by control system 21 record poly (methyl methacrylate) plate speed of feed information;
3, thickness measure: poly (methyl methacrylate) plate enters between the upper and lower thickness measuring unit 12,13 that detects in the framework 5, and the poly (methyl methacrylate) plate front is withstood the guide wheel 18 of thickness measuring unit 12 and through lever 16, guide wheel 17, test probe 141 positional information of sheet material upper surface point transported to control system 21 by linear displacement transducer 14; With thickness measuring unit 13 at present the positional information of poly (methyl methacrylate) plate following table millet cake is transported to control system 21, calculate and demonstrate the information such as thickness, flatness of multiple spot on the sheet material Width by control system 21, and the input ERP system;
4, measurement result: by the thickness information of multiple spot on control system 21 comprehensive poly (methyl methacrylate) plate speed of feed information and the sheet material Width, the thickness information of external output unit output organic glass board plane finite lattic, write down its change curve etc., reach the quick, accurate, accurate of online detection.
Claims (6)
1. on-line double-sided automatic thickness measuring device of organic glass, mainly comprise control system (21), frame (1), bracing frame (2), detect framework (5), crossbeam (6), the crossbeam regulating device, feeding distance measurement mechanism (4) and a plurality of measurer for thickness, the fixedly connected detection framework in frame upper end, crossbeam is connected on the upper side frame that detects framework through the crossbeam regulating device, detect the framework internal fixation and connect bracing frame, bracing frame is provided with many support guide axles (3), it is characterized in that: described feeding distance measurement mechanism (4) is the swing offset sensor, and the swing offset sensor is arranged at an end of arbitrary support guide axle (3); Described a plurality of measurer for thickness includes, following thickness measuring unit (12,13), described a plurality of thickness measuring unit (12) of going up evenly is arranged on the crossbeam (6), last thickness measuring unit comprises linear displacement transducer (14), spring (19), axle (15), lever (16), register pin (20) and two guide wheels (18,19), linear displacement transducer and axle all are fixed on the crossbeam, lever is connected on the axle through bearing, the lever two ends connect two guide wheels respectively, every guide wheel all is connected on the lever through two bearings, the any end of lever connects an end of spring, be fixed with register pin on the crossbeam of the lever one end top of mounting spring, the other end of spring is fixed on the crossbeam, the guide wheel movable contact condition in vertical direction of test probe of linear displacement transducer (141) and any end of lever; It is described that thickness measuring unit (13) structure is identical with last thickness measuring unit down, a plurality of down thickness measuring units evenly are fixed on the lower frame that detects framework (5) and are symmetrical arranged with a plurality of thickness measuring unit of going up on the crossbeam, and the linear displacement transducer of following thickness measuring unit, spring, axle and register pin all are fixed on the lower frame that detects framework; The equal connection control system of the linear displacement transducer of swing offset sensor and upper and lower thickness measuring unit (21).
2. on-line double-sided automatic thickness measuring device of organic glass according to claim 1, it is characterized in that: described crossbeam regulating device comprises elevating screw (8) and reducing motor (7), the fixedly connected crossbeam in elevating screw bottom (6), float through leading screw nut (9) and be fixed on the upper side frame that detects framework (5) in the elevating screw middle part, reducing motor connects feed screw nut through gear pair.
3. on-line double-sided automatic thickness measuring device of organic glass according to claim 2 is characterized in that: described elevating screw (8) is a ball-screw; Described reducing motor (7) is the meter specially motor of charged magnetic brake.
4. on-line double-sided automatic thickness measuring device of organic glass according to claim 1 is characterized in that: support frame as described above (2) is by detecting framework (5) location, and the bracing frame periphery is bolted on the frame (1) through adjusting.
5. on-line double-sided automatic thickness measuring device of organic glass according to claim 1 is characterized in that: the end that the test probe (141) of described linear displacement transducer (14) contacts with guide wheel is the plane.
6. on-line double-sided automatic thickness measuring device of organic glass according to claim 1 is characterized in that: be equipped with position displacement sensor (10,11) on left and right two frames of described detection framework (5).
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| US5097216A (en) * | 1990-10-09 | 1992-03-17 | Agr International, Inc. | Apparatus for inspecting the wall thickness of a container and corresponding method |
| CN2105668U (en) * | 1990-10-13 | 1992-05-27 | 中国建筑材料科学研究院 | Online scan thick measurer for plain glass |
| CN1357745A (en) * | 2000-12-08 | 2002-07-10 | 三星科英株式会社 | In-situ substrate thickness measuring system and method |
| CN201081695Y (en) * | 2007-10-14 | 2008-07-02 | 韦钧 | Contact roller type plate thickness distribution measuring device |
| US7710558B2 (en) * | 2008-09-11 | 2010-05-04 | Litesentry Corporation | Automated online measurement of glass part geometry |
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Effective date of registration: 20170802 Address after: 225442 No. 186, Tongjiang Road, Binjiang Town, Jiangsu, Taixing Patentee after: Jiangsu Tang Chenxin Mstar Technology Ltd Address before: 225442 No. 186, Tongjiang Road, Taixing Economic Development Zone (Binjiang Town, Jiangsu) Patentee before: Taixing Donchamp Acrylic Co., Ltd. |