CN201122421Y - Gantry type four-dimensional automatic measurement bench for detecting optical color performance of display screen - Google Patents
Gantry type four-dimensional automatic measurement bench for detecting optical color performance of display screen Download PDFInfo
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- CN201122421Y CN201122421Y CNU2007201140194U CN200720114019U CN201122421Y CN 201122421 Y CN201122421 Y CN 201122421Y CN U2007201140194 U CNU2007201140194 U CN U2007201140194U CN 200720114019 U CN200720114019 U CN 200720114019U CN 201122421 Y CN201122421 Y CN 201122421Y
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Abstract
The utility model discloses a planer-type four-dimensional automatic measurement table used for detecting photochromic performance of a display screen, which relates to the automatic measurement technology of the photochromic performance of a display screen. The four-dimensional automatic measurement table is composed of a platform base seat, a portal frame, an X axle moving mechanism, a Y axle moving mechanism, a Z axle lifting mechanism and a display screen object loading rotating platform, the electric circuit is controlled through all the mechanisms, the photochromic performance of the display screen is flexibly controlled, the four-dimensional automatic measurement table can accomplish three-dimensional movement of a photochromic measurement instrument, and one-dimensional accurate rotation of a measured display screen, and has the advantages of smooth running of the photochromic measurement instrument, small rotation radius of the display screen, novel structure, small required driving force, small volume, light weight, low cost, quick measuring speed and high reliability; the four-dimensional automatic measurement table can be widely applied to the photochromic performance automatic detecting system, such as, LCD and LED television screens, a display screen and a mobile phone screen, etc.; under the management of the computer, the coordinate position of the measuring point and the angle of the display screen can be intelligently and accurately adjusted in the three dimensional direction according to the requirement of the photochromic performance measurement of the display screen, and the photochromic performance detection can be quickly accomplished.
Description
Technical field
The utility model belongs to photochromism energy measurement equipment technical field, relates to display screen photochromism energy measurement equipment, relates in particular to the gantry type four dimensional automatic measurement that is used for detecting automatically the photochromic performance of display screen.
Background technology
Along with development of technology, products such as TV, computer, mobile phone, camera use flat-faced screen more and more widely, and display area is increasing, and image is more and more clear.These display screens comprise LCD, PDP, LED display etc.
Flat-faced screen is just towards image fidelity, the image quality exquisiteness, and levels are rich, stereoscopic sensation is strong, and the direction of high brightness, high-contrast, wide visual angle, high-resolution develops.Some display screen mainly is LCD, a LED screen at present, and the visual angle is little, and brightness when watching image, contrast and color saturation increase and reduce along with the visual angle of watching, and the colourity error increases along with the increase at visual angle, and picture quality is reduced; And full frame color homogeneity also has much room for improvement.Need the colorimetric characteristics of these display screens is detected for this reason.
The instrument that detects the display screen colorimetric characteristics is made up of automatic test desk and chroma and luminance measurement instrument at present.Display screen and chroma and luminance measurement instrument are installed on the automatic test desk.The automatic test desk of prior art as shown in Figure 1, it is made up of chroma and luminance measurement instrument universal stage 01, two-dimentional mobile platform 02, elevating mechanism 03, measured piece erecting bed 04 and test desk base 06, two dimension mobile platform 02 comprises longitudinal moving mechanism 021 and transverse moving mechanism 022, two dimension mobile platform 02 is installed on the elevating mechanism 03, measured piece erecting bed 04 is installed on the longitudinal moving mechanism 021, and tested display screen is connected on the measured piece erecting bed 04.Measuring table is finished two dimension in the plane and is moved, and it is the twice of maximum detection screen size that mobile space requires.Chroma and luminance measurement instrument 05 is installed on the pivot arm 011 of chroma and luminance measurement instrument universal stage 01, and pivot arm 011 has a reciprocating mechanism 012, and the chroma and luminance measurement instrument can move up and down, and regulates the distance of chroma and luminance measurement instrument to display screen.Move tested display screen and rotate the angle and the lifting pedestal 06 of photochromic measuring instrument and tested display screen on universal stage 01 pivot arm 011 by two-dimentional mobile platform 02, finish the measurement at display screen uniformity of chromaticity and visual angle.There is following defective in prior art:
(1) complex structure, volume is big.The visual angle of the one dimension of this test desk is measured and the two-dimensional plane color homogeneity is measured and must be moved by the plane is two-dimentional in length and breadth, measuring instrument moves up and down, pivot arm rotates and five dimension athleticisms of hydraulic pressure base lifting are realized, its complex structure, occupation area of equipment is more than 4 times of tested display area, its visual angle is measured and is adopted chroma and luminance measurement instrument universal stage to rotate, the pivot arm turning radius is big, and increase with screen size, be generally high 3 times of tested display screen, tested screen size increases, photochromic measuring instrument rises De Genggao thereupon on the universal stage 01, the rectilinear motion space of two dimension mobile platform increases thereupon, makes test desk seem huge more.
(2) straight-line driving force is big.Two dimension is moved in length and breadth and will be driven objective table and the motion of tested screen, and elevating mechanism will drive the measured piece erecting bed and two-dimentional in length and breadth travel mechanism moves together, because volume is big, equipment is heavy, and required driving force is very big.
(3) automaticity is low.Chroma and luminance measurement instrument universal stage 01 and two-dimentional mobile platform 02 be not in unified coordinate system, be difficult to accurately adjust at three-dimensional the visual angle of coordinate points position and display screen, the degree of intelligence of measurement and use operation is low, measuring accuracy and poor reliability, be difficult for the duplicate measurements condition, consistance is poor.Operation inconvenience, measuring speed is slow.
(4) kinetic stability is poor.Measuring table is amesiality, because measured piece erecting bed Heavy Weight, the equipment center of gravity of making is offset, and motion all will be born bigger gravity torque, has a strong impact on the stationarity of equipment moving.
(5) size of measuring object is big inadequately.The test desk application is subjected to restrictions such as structure, cost, and the photochromic performance that is difficult to be applied to larger sized display screen is measured automatically.
For the display screen industry that adapts to develop rapidly and the display screen chroma and luminance measurement demand that grows with each passing day, press for that measuring accuracy height, the measuring speed that can satisfy display screen colorimetric characteristics measuring system are fast, volume is little, cost is low, be adapted to the automatic test desk that various sizes display screen colorimetric characteristics is measured.
Summary of the invention
The purpose of this utility model is in order to overcome the above-mentioned defective of prior art, a kind of gantry type four dimensional automatic measurement that is used to detect the photochromic performance of display screen is proposed, the one dimension that three-dimensional by the chroma and luminance measurement instrument moves with tested display screen rotates, and provides automatic measuring condition for realizing that colorimetric characteristics such as display screen color homogeneity and visual angle detect.The range of movement of test desk chroma and luminance measurement instrument equals the size of maximum display screen, and chroma and luminance measurement instrument mobile space distance can reduce at double.When measuring the visual angle, the one dimension center of rotation overlaps with the center of tested display screen, as long as rotate tested display screen, just can finish the visual angle and measure.Central point as display screen does not overlap with center of rotation, can overlap with the center of tested display screen with the one dimension center of rotation by three-dimensional traverse measurement instrument.When measuring the display screen color homogeneity, can realize the automatic location of distance between measuring instrument and measurement point by the traverse measurement instrument.Measure display screen one dimension turntable for prior art measuring instrument universal stage, weight greatly alleviates, and the required driving force of measuring instrument three-dimensional motion is little, motion steadily, the kinematic accuracy height.The floor area of test desk is slightly larger than the area of tested display screen, and equipment volume greatly reduces, and cost obviously reduces.The center of rotation of display screen and the center of gravity of mounting platform coincide, and rotating torque is little, rotary balance.Realize the automatic measurement of large scale display screen colorimetric characteristics easily.The purpose of this utility model is to be achieved through the following technical solutions:
The described gantry type four dimensional automatic measurement that is used to detect the photochromic performance of display screen, its be it by the automatic travel mechanism of X axis, Y-axis to the axial three-dimensional mobile platform of planer-type that constitutes of travel mechanism and base combination automatically of automatic travel mechanism, Z, on the three-dimensional mobile platform of planer-type the one dimension article carrying platform is installed also; Wherein:
The Z axial moving mechanism is a stand formula screw mandrel drive mechanism, and it mainly is made of, shaft coupling, Z axial filament bar plate, Z spindle motor and aviation plug seat, Z axial filament bar, bearing seat, Z axle take-up housing Z axis mechanism base plate, Z axle track; Z axle track is fixed on the Z axis mechanism base plate with pair of bearing, Z spindle motor and aviation plug seat, Z axial filament bar, Z axial filament stem nut is installed on the Z axial filament bar plate, the a pair of take-up housing that Z axial filament bar plate is installed in Z axle track to last, shaft coupling connects Z axial filament bar and the rotating shaft of Z spindle motor, Z axial filament bar plate is equipped with the special connecting piece of fixing photochromic measuring instrument, preferentially adopts the The Cloud Terrace joint.
Y-axis is a planer-type screw mandrel drive mechanism to travel mechanism, and it mainly is made of, shaft coupling, Y-axis screw mandrel plate, y-axis motor and aviation plug seat, Y-axis screw mandrel, bearing seat, gantry beam slab, Y-axis track gantry upright post; The Y-axis track is fixed on the beam slab of gantry with pair of bearing, y-axis motor and aviation plug seat, Y-axis screw mandrel, gantry beam slab is rigidly fixed on the left and right gantry upright post, the Y-axis screw mandrel is perpendicular to left and right gantry upright post, Y-axis feed screw nut is installed on the Y-axis screw mandrel plate, to last, shaft coupling connects Y-axis screw mandrel and y-axis motor rotating shaft to a pair of take-up housing that Y-axis screw mandrel plate is installed in the Y-axis track;
X axis travel mechanism is a horizontal screw mandrel drive mechanism; It is that gantry base plate, X-axis motor and aviation socket constitute to, X-axis screw mandrel, bearing to, shaft coupling, X-axis screw mandrel plate by the X-axis track mainly, and it is its organization soleplate with base substrate; X-axis screw mandrel, bearing to, X-axis motor, aviation socket and X-axis track to secured in parallel on base substrate, X-axis feed screw nut is installed on the X-axis screw mandrel plate, a pair of take-up housing that X-axis screw mandrel plate is installed in the X-axis track to last; Shaft coupling connects X-axis screw mandrel and X-axis machine shaft;
Base is made of substrate and 4 adjustable height footing; The adjustable height footing is symmetrically distributed in four angular zones of substrate, makes base maintenance level;
The Z axial moving mechanism is fastenedly connected by Z axis mechanism base plate and is fixed on the Y-axis screw mandrel plate, Z axial filament bar is perpendicular to the Y-axis screw mandrel, and be parallel to left and right gantry upright post, and make the Z axial filament bar of Z axial moving mechanism keep vertical to the Y-axis screw mandrel of travel mechanism with Y-axis, the chroma and luminance measurement instrument is fixed on the Z axle elevating mechanism, can move automatically in Z-direction, but test desk up-down adjustment moving range is not less than 200mm, makes optical axis and its stationary platform moving direction keeping parallelism of chroma and luminance measurement instrument.
To being rigidly fixed on the X-axis screw mandrel plate, perpendicular to X axis travel mechanism, the Y-axis screw mandrel keeps vertical with the X-axis screw mandrel to Y-axis to Y-axis to travel mechanism to the gantry upright post of travel mechanism;
X, the Y of the three-dimensional mobile platform of planer-type, the maximum shift motion visual display of Z coordinate screen products are divided into large, medium and small many types of, the small-sized 200mm * 200mm * 200mm that is preferably.
The three-dimensional mobile platform of article carrying platform and planer-type is for fixedly to be rigidly connected, and the objective table of zero-bit state is vertical with the base plate of the three-dimensional mobile platform of planer-type, is furnished with one group on the loading flat board and installs and fixes the hole.Measured piece article carrying platform size also adapts the small-sized 200mm * 200mm that is preferably with the three-dimensional mobile platform of large, medium and small type.Be fixed with equally distributed Φ 6 screw battle arrays on the objective table, adjacent screw centre distance is 25mm.
The described gantry type four dimensional automatic measurement that is used to detect the photochromic performance of display screen, it is that described article carrying platform is a moment of torsion formula rotational structure; It is made of a pair of article carrying platform column, objective table, rotary electric machine, speed reduction unit, scrambler, turntable base plate and aviation socket; Wherein:
A pair of article carrying platform column is the support post of article carrying platform, and its lower end is that rigid vertical is connected with the turntable base plate; The right upper end of article carrying platform column has the pair of bearings hole, and the turntable right column is fixedly connected with speed reduction unit and rotary electric machine, rotary electric machine rotating shaft connection reducer; When adopting step motor drive, be connected with a scrambler on the turntable left column;
Objective table comprises a pair of swivel arm plate, loading platen, a pair of rotation balancing weight; Turn left and right arm plate one end and loading platen right angle is rigidly connected, the fixing balancing weight that rotates of the other end; Left-hand rotation swing arm plate embeds the left side rotating shaft, and the left side rotating shaft is connected on the bearing of left side column, and the right side rotating shaft that embeds right-hand rotation swing arm plate is connected to speed reduction unit; Be furnished with on the loading platen and optimize distribute and the evenly distributed hole that installs and fixes, so that fix tested display screen;
Speed reduction unit is a harmonic speed reducer, and the rotating shaft of rotary electric machine connects harmonic speed reducer, and moment of torsion is slowed down converts the torque of objective table swivel arm plate to;
Scrambler can be absolute encoder or relative coding device, absolute encoder is 10 or 12 s' a photoelectric encoder, the relative coding device is a delta pulse type scrambler, and scrambler output connection control circuit is by the angle of control circuit according to the output judgement objective table of scrambler.
The turntable base plate is fixed on the baseplate substrate of three-dimensional mobile platform, between left and right turntable side plate, left and right turntable side plate is played a supporting role;
The aviation socket of article carrying platform connects rotary electric machine and rotary electric machine control circuit.
The described gantry type four dimensional automatic measurement that is used to detect the photochromic performance of display screen, it is the left-hand rotation swing arm plate of described objective table, with bearing to being fulcrum, right-hand rotation swing arm plate is fulcrum with the speed reduction unit, constitutes mechanical rotation with left side plate and is connected;
Embed a bearing on the left-hand rotation column, the left side rotating shaft embeds turntable left arm plate, and the right side rotating shaft embeds embedding speed reduction unit in back on the right-hand rotation swing arm plate; What installed swivel arm plate upper end is objective table static balancing balancing weight, has good static stability after the loading turntable is rotated.
The described gantry type four dimensional automatic measurement that is used to detect the photochromic performance of display screen, it is to connect a The Cloud Terrace joint on the Z axial filament bar plate of described Z axial moving mechanism, and the The Cloud Terrace joint can be installed various model colour measurement instrument.
The described gantry type four dimensional automatic measurement that is used to detect the photochromic performance of display screen, it is that X, the Y of the three-dimensional mobile platform of described planer-type, the motor of Z three-dimensional moving mechanism all are servomotor or stepper motor, connect the aviation socket in the mechanism separately respectively, and respectively having the cable of a band aviation plug to connect corresponding mobile control circuit, each moves driver or three shared stepper motor drivers of mobile control circuit that control circuit adopts single servo motor or stepper motor.
The utlity model has following substantial effect:
(1) visual angle of the one dimension of the utility model test desk is measured and as long as the two-dimensional plane color homogeneity is surveyed by chroma and luminance measurement instrument XY two dimensional surface with the Z axle moves up and down and the four-dimensional movement of measured piece objective table one dimension rotation just can be realized, its structure makes the few and stroke weak point of its measuring process, visual angle measuring accuracy height, measuring speed is fast, good stability.The chroma and luminance measurement instrument of its structure moves up and down as long as the Z axle moves, and the chroma and luminance measurement instrument is for test desk, and is in light weight, and volume is little, and required driving force is very little.And the center of gravity of measured piece objective table center of rotation and objective table coincides, and required driving torque is little.The measured piece objective table radius of gyration is little.
(2) chroma and luminance measurement instrument Z axle reciprocating mechanism and X, Y two dimension travel mechanism is in unified coordinate system, can accurately adjust the visual angle of coordinate points position and display screen at three-dimensional, measure and use easy and simple to handle, the degree of intelligence height, measuring accuracy height and good reliability, very easily duplicate measurements condition, high conformity.
(3) range of movement that moves of test desk chroma and luminance measurement instrument equals the size of display screen, and the floor area of test desk is slightly larger than the area of display screen, is 1/4 of the floor area of prior art equipment.Slewing area of the present utility model depends on the size of objective table, and with the big or small basically identical of screen, so range of movement is little, the volume of equipment is little, and is in light weight.
(4) device structure is simple, the planer type structure supporting ﹠ stablizing, because the chroma and luminance measurement instrument is in light weight, the center of gravity held stationary of entire equipment is not born gravity and the moment of torsion that produces.And rotate when amesiality when objective table, because the static balancing effect of objective table arm plate balancing weight, having weakened the centre-of gravity shift of test desk equipment, three-dimensional motion mechanism is not born gravity torque, and the stationarity of mechanism kinematic and equipment is good, the measuring accuracy height.
(5) test desk degree of intelligence height.When measuring the visual angle, display screen rotates, and center of rotation overlaps substantially with the center of display screen.Center as display screen does not overlap with center of rotation, when measuring the visual angle, can by distance between traverse measurement instrument realization measuring instrument and measurement point from motion tracking, the automaticity height.
(6) the utility model not only is adapted to the measurement of small size display screen such as mobile phone screen, also can be applied to the measuring system of the photochromic performance of various large scale display screens.
Description of drawings
Fig. 1 is the two-dimensional measurement platform of the photochromic performance of detection display screen of prior art and the product structure exploded view of chroma and luminance measurement instrument universal stage.
Fig. 2 is used to detect the principle of compositionality block diagram of the gantry type four dimensional automatic measurement of the photochromic performance of display screen for the utility model.
Fig. 3 a is the structural representation of the utility model embodiment gantry type four dimensional automatic measurement.
Fig. 3 b is the structural representation left side view of Fig. 3 a the utility model embodiment gantry type four dimensional automatic measurement.
Fig. 4 a is the structural representation of three-dimensional mobile platform of the planer-type of the utility model embodiment band photochromism measuring instrument and one dimension article carrying platform.
Fig. 4 b is the side view of the structural representation of three-dimensional mobile platform of the planer-type of Fig. 4 a the utility model embodiment band chroma and luminance measurement instrument and one dimension article carrying platform.
Fig. 4 c is the vertical view of the structural representation of three-dimensional mobile platform of the planer-type of Fig. 4 a the utility model embodiment band photochromism measuring instrument and one dimension article carrying platform.
Fig. 5 is used to detect the structural drawing of the gantry type four dimensional automatic measurement of the photochromic performance of display screen for the utility model embodiment.
Fig. 6 constitutes the first embodiment composition frame chart that detection of handset is shielded photochromic performance automatic measurement system for adopting the utility model gantry type four dimensional automatic measurement.
Fig. 7 constitutes the second embodiment composition frame chart that detection of handset is shielded photochromic performance automatic measurement system for the utility model embodiment gantry type four dimensional automatic measurement.
Among Fig. 1: 01-chroma and luminance measurement instrument universal stage, 011-universal stage pivot arm, 012-universal stage chroma and luminance measurement instrument elevating mechanism, 021-longitudinal moving mechanism, 022-transverse moving mechanism, 03-two dimension mobile platform elevating mechanism, 04-measured piece erecting bed, 05-chroma and luminance measurement instrument, 06-test desk base.
Among Fig. 2: the three-dimensional mobile platform of 1-planer-type, 11-Z axial moving mechanism, 12-Y axial moving mechanism, 13-X axial moving mechanism, 14-Z shaft platform move control circuit, 15-Y shaft platform and move control circuit, 16-X shaft platform and move the chroma and luminance measurement instrument that control circuit, 17-The Cloud Terrace joint, 2-article carrying platform, the tested display screen of 20-, 21-objective table, 22-article carrying platform rotation control circuit, 3-connect.
Among Fig. 3 a and Fig. 3 b: the three-dimensional mobile platform of 1-planer-type, 11-Z axial moving mechanism, 12-Y axial moving mechanism, 13-X axial moving mechanism, 17-The Cloud Terrace joint, 18-base, 2-article carrying platform, 21-objective table, 3-chroma and luminance measurement instrument to be installed to be installed.
Fig. 4 a, among Fig. 4 b and Fig. 4 c: 111-Z axial filament bar and feed screw nut, the 112-bearing seat, 1121-Z axle shaft coupling, 113-Z axial filament bar plate, 114-Z axle slide block, 115-Z axle track, the 116-Z spindle motor, 117-Z axle base plate, 118-Z axle aviation plug seat, 121-Y axial filament bar, 1211-Y axial filament stem nut, 122-Y axle bearing seat, 1221Y axle shaft coupling, 123-Y axial filament bar plate, 124-Y axle slide block, 125-Y axle track, the 126-Y spindle motor, 127-gantry beam slab, 128-Y axle aviation plug seat, 1291-Y axle gantry left column, 1292-Y axle gantry right column, 131-X axial filament bar, 1311-X axial filament stem nut, 132-X axle bearing seat, 1321-X axle shaft coupling, 133-X axial filament bar plate, 134-X axle slide block is right, 135-X axle track, the 136-X spindle motor, 138-X axle aviation plug seat, the The Cloud Terrace joint that 17-is to be installed, the 181-base substrate, 182-base lower margin, 211-article carrying platform left column, 212-article carrying platform right column, 221-objective table left arm plate, 222-objective table right arm plate, 223-loading platen, 224-objective table balancing weight, 23-article carrying platform base plate, 24-objective table rotary electric machine, the 25-speed reduction unit, 251,252-objective table rotation axis, 26-article carrying platform bearing holder (housing, cover), 27-objective table scrambler, the chroma and luminance measurement instrument that 3-is to be installed.
Among Fig. 5 a, Fig. 5 b and Fig. 5 c: 17-The Cloud Terrace joint, 3-BM-7A type color luminance meter.
Among Fig. 6: 4-mobile phone screen photochromism performance measurement system computing machine, 31-BM-7 type color luminance meter, 61-Z axle driven by servomotor controller, 62-Y axle driven by servomotor controller, 63-X axle driven by servomotor controller, 64-objective table driven by servomotor controller.
Among Fig. 7: 27-objective table scrambler, the three-in-one step motor drive controller of 71-, 74-objective table step motor drive controller.
Embodiment
Below with embodiment of the present utility model, and in conjunction with the accompanying drawings the technical scheme of the three-dimensional mobile platform of planer-type is further described.
The utility model be used to detect the photochromic performance of display screen gantry type four dimensional automatic measurement the principle of compositionality block diagram as shown in Figure 2, the three-dimensional mobile platform 1 of planer-type by Z axial moving mechanism 11, Y-axis to the mobile control circuit 14 of travel mechanism 12, X axis travel mechanism 13 and Z axle, the moving control circuit 15 of y-axis shift, X-axis moves control circuit 16 and erection joint 17 constitutes, Z axial moving mechanism 11 connects the mobile control circuit 14 of Z axle, Y-axis connects the moving control circuit 15 of y-axis shift to travel mechanism 12, and X axis travel mechanism 13 connects X-axis and moves control circuit 16.The article carrying platform 2 of one dimension is made of objective table 21 and article carrying platform rotation control circuit 22, is loaded with tested display screen 20 on the objective table 21, and loading 2 connects article carrying platform rotation control circuit 22.Three-dimensional mobile platform 1 of planer-type and one dimension article carrying platform 2 constitute gantry type four dimensional automatic measurement, The Cloud Terrace joint 17 of configuration on the Z axial moving mechanism 11, The Cloud Terrace joint 17 can be finished X, Y, the Z three-dimensional moves axially, and the objective table 21 of one dimension article carrying platform 2 can be done rotating relative to the Z axle.
Fig. 3 a shows the structural representation of the utility model embodiment gantry type four dimensional automatic measurement, and Fig. 3 b is the left side view of the structural representation of Fig. 3 a the utility model embodiment gantry type four dimensional automatic measurement.The three-dimensional mobile platform 1 of the planer-type of the gantry type four dimensional automatic measurement of embodiment comprises Z axial moving mechanism 11, Y-axis is to travel mechanism 12, X axis travel mechanism 13, the Z axial moving mechanism 11 that has instrument erection joint 17 is fixed on Y-axis in travel mechanism 12, Y-axis is seated in the X axis travel mechanism 13 to travel mechanism 12, the three-dimensional mobile platform 1 of planer-type comprises that also three the tunnel move control circuit, under control circuit control, X axis travel mechanism 13 can drive Y-axis and move along X axis to travel mechanism 12, Y-axis to travel mechanism 12 can drive Z axial moving mechanism 11 along Y-axis to moving, Z axial moving mechanism 11 can drive the instrument erection joint again and move axially along Z.The one dimension article carrying platform 2 of gantry type four dimensional automatic measurement comprises objective table 21, and article carrying platform 2 also comprises one road rotation control circuit.Three-dimensional mobile platform 1 of planer-type and one dimension article carrying platform 2 are installed on the platform base 18, and erection joint 17 is the The Cloud Terrace joint, and chroma and luminance measurement instrument 3 to be installed can be installed on the The Cloud Terrace joint 17.The three-dimensional mobile platform of planer-type that constitutes based on the syndeton of X, Y, Z three axial moving mechanisms, can be by measuring system to three tunnel controls of moving control circuit, make the chroma and luminance measurement instrument 3 can be according to the measurement point coordinate that is provided with, in unified X, Y, Z three-dimensional system of coordinate, moving of intelligence, the objective table 21 of one dimension article carrying platform 2 can be done the rotation with respect to chroma and luminance measurement instrument 3 measurement optical axises, keeps measuring the visual angle with the chroma and luminance measurement instrument of installing in the erection joint 17.
Fig. 4 a shows the structural representation of three-dimensional mobile platform of the utility model embodiment planer-type and one dimension article carrying platform, Fig. 4 b is the side view of the structural representation of three-dimensional mobile platform of the planer-type of Fig. 4 a the utility model embodiment band chroma and luminance measurement instrument and one dimension article carrying platform, and Fig. 4 c is the vertical view of the structural representation of three-dimensional mobile platform of the planer-type of Fig. 4 a the utility model embodiment band chroma and luminance measurement instrument and one dimension article carrying platform.
Gantry type four dimensional automatic measurement is made up of Z axle travel mechanism 11, y-axis shift actuation mechanism 12, X-axis travel mechanism 13, platform base 18, portal frame 129, one dimension article carrying platform 2.Z axle travel mechanism 11 is fixing photochromic measuring instrument and its oscilaltion of control, y-axis shift actuation mechanism 12 is fixing Z axle elevating mechanisms 11 and make its move left and right, Z axle elevating mechanism 11 vertical fixing are installed on the y-axis shift actuation mechanism 12, and be fixedly mounted on as the y-axis shift actuation mechanism 12 of portal frame crossbeam on two parallel gantry upright post 1291 and 1292 of portal frame, two parallel columns are vertically fixed in the X-axis travel mechanism 13.X-axis travel mechanism 13 is located on the platform base 18, and it is that it moves forward and backward fixed installation y-axis shift actuation mechanism 12 with control.Fixedly the article carrying platform 2 of measured piece also is installed on the platform base 18, and four jiaos of platform base 18 are equipped with the scalable lower margin, so that platform base keeps level.
Z axle travel mechanism 11 comprises jacking gear, Z axle base plate 117 and the aviation combination hub 118 that is parallel to the Z axle.The pair of bearing 112, Z axial filament bar plate 113, Z axle slide block 114, track that jacking gear comprises the Z axial filament bar 111 that drives feed screw nut's lifting, support screw 111 is to 115 and Z spindle motor 116, one end of elevating screw connects jacking gear power motor main shaft by Z axle shaft coupling 1121, elevating screw as the main shaft band of jacking gear power motor 116 and rotate, the feed screw nut drives elevating screw plate 113 and moves up and down 115 along fluctuating orbit.Z axle jacking gear and aviation combination hub 118 are fixed on the Z axle base plate 117.The preferred The Cloud Terrace joint of dedicated fixed seat of chroma and luminance measurement instrument is installed among the embodiment, on the Z axial filament bar plate 113 of Z axle elevating mechanism a The Cloud Terrace joint 17 can be installed, chroma and luminance measurement instrument 3 to be installed is installed on the The Cloud Terrace joint.
Y-axis shift actuation mechanism 12 comprises that y-axis shift moves device, the Y-axis base plate is gantry beam slab 127 and aviation combination hub 128.The moving device of y-axis shift comprises mobile screw mandrel 121 and the feed screw nut 1211 who is parallel to Y-axis, the a pair of supporting bearing base 122 of mobile screw mandrel, Y-axis shaft coupling 1221, Y-axis screw mandrel plate 123, a pair of Y-axis slide block 124, a pair of Y-axis track 125 and mobile device power motor 126, the mobile screw mandrel plate 123 of Y-axis is fastenedly connected Z axle elevating mechanism, mobile device power motor 126 is fixed on the portal frame right column 1292, the mobile screw mandrel 121 of Y-axis is supported by a pair of supporting bearing base 122, one end of mobile screw mandrel 121 connects mobile device power motor 126 main shafts with shaft coupling 1221, mobile device power motor main shaft band mobile screw mandrel and is rotated, the mobile screw mandrel plate of feed screw nut's 1211 drives to 125 move left and right, is promptly controlled Z axle elevating mechanism along the Y-axis move left and right along moving track.It is on gantry beam slab 127 that moving device of y-axis shift and aviation combination hub 128 are fixed on the Y-axis base plate.
Portal frame comprises that two parallel gantry upright post 1291 and 1292, gantry beam slab 127, gantry base plate are X-axis screw mandrel plate 133 compositions of X-axis travel mechanism, and left and right sides gantry upright post is vertical with X-axis screw mandrel plate 133.
Article carrying platform comprises a pair of article carrying platform stand 211 and 212, fixedly objective table 21, article carrying platform base plate 23, objective table rotary electric machine 24, speed reduction unit 25, bearing holder (housing, cover) 26, objective table scrambler 27 and the aviation combination hub of measured piece.Objective table comprises left and right arms plate 221 and 222, fixedly loading platen 223, a pair of balancing weight 224 and article carrying platform rotation axis 251 and 252 of measured piece.The lower end of left and right arms plate and loading platen 223 are rigidly connected for L type right angle, the upper end balanced configuration of left and right arms plate has a balancing weight 224, rotation axis 251,252 is embedded in respectively on the left-right rotation arm plate 221,222, rotary electric machine 24 and speed reduction unit 25 are fixed on the right standing frame, 24 rotating shafts of turn motor connect speed reduction unit 25, output torque after machine shaft slows down, the visual angle measuring accuracy of raising loading rotatable platform.Left-hand rotation moving axis 251 is packed bearing holder (housing, cover) 26 and left standing frame into movingly, right-hand rotation moving axis 252 and speed reduction unit 25 rigid attachment, the rotating shaft of rotational power motor drives fixedly, and the objective table of measured piece rotates around the rotation center axis, the a pair of balancing weight 224 of balanced configuration, can effectively reduce the rotator inertia moment of rotational power motor, make objective table have good static stationarity having carry to measure on the visual angle.
Be installed in a plurality of aviation plug seats of each travel mechanism's base plate of three-dimensional mobile platform, connect the power motor of X-axis slide mechanism 13, y-axis shift actuation mechanism 12, Z axle elevating mechanism 11 respectively, and connect each respectively with aviation plug cable and move control circuit.
For the utility model embodiment is used to detect the gantry type four dimensional automatic measurement structure that connects the chroma and luminance measurement instrument of the photochromic performance of display screen shown in Fig. 5 a, Fig. 5 b and Fig. 5 c.Chroma and luminance measurement instrument 3 is connected on the The Cloud Terrace joint 17 that is installed on the Z axle elevating mechanism 11 screw mandrel plates, chroma and luminance measurement instrument 3 can be in the Z axle oscilaltion of Z axle elevating mechanism upper edge, y-axis shift actuation mechanism 12 scalable chroma and luminance measurement instrument 3 are along the Y-axis move left and right, and X-axis slide mechanism 13 scalable chroma and luminance measurement instrument 3 slide before and after X-axis.Tested display screen 21 is fixed on the loading platen 223, and chroma and luminance measurement instrument 3 is regulated and moved to loading platen 223 tops.The lower margin of the base 18 of gantry type four dimensional automatic measurement is the roller type lower margin that has detent among the embodiment, both has been easy to moving of test desk, can make test desk keep good measuring condition the locking of test desk lower margin again.Three-dimensional mobile platform 1 can be according to measurement initial point and visual angle required or definition, the optical axis of chroma and luminance measurement instrument 3 regulated to move to be fixed on the loading platen 223 tested display screen and measure coordinate figure accordingly, one dimension article carrying platform 2 can turn to required visual angle with the tested display screen on the loading platen 223, finishes the automatic detection of the photochromic performance of display screen.
Adopt the composition frame chart that the utility model embodiment gantry type four dimensional automatic measurement formation mobile phone shields photochromic performance automatic checkout system to see Fig. 6.This mobile phone shields photochromic performance automatic checkout system to be made up of the gantry type four dimensional automatic measurement that mainly comprises three-dimensional mobile platform 1 and one dimension article carrying platform 2, chroma and luminance measurement instrument 3, system computer 4 and Z axle driven by servomotor controller 61, Y-axis driven by servomotor controller 62, X-axis driven by servomotor controller 63, objective table driven by servomotor controller 64.Gantry type four dimensional automatic measurement adopts small-sized test desk, the chroma and luminance measurement instrument adopts BM-7 type color luminance meter 31, X-axis motor, y-axis motor, Z spindle motor and article carrying platform motor all adopt servomotor, servomotor adopts the motor M HMD042PEU of Panasonic, the driven by servomotor controller adopts MBDDT2210003, and the harmonic speed reducer employing reduction gear ratio of article carrying platform is 100 harmonic gear reducer.Tested mobile phone screen 20 is fixed on the objective table of article carrying platform 2.When measuring at the visual angle, system computer control Z axle driven by servomotor controller 61, drive Z axle servomotor and make 31 oscilaltions of BM-7 type color luminance meter, reach default measuring distance with tested mobile phone screen 20, simultaneity factor computer control Y-axis driven by servomotor controller 62 and X-axis driven by servomotor controller 63, Y-axis servomotor and X-axis servomotor drive each self-driven travel mechanism, and the optical axis of BM-7 type color luminance meter 31 is overlapped with the measurement initial point of tested mobile phone screen 20.When photochromic uniformity measurement, system computer control Y-axis driven by servomotor controller 62 and X-axis driven by servomotor controller 63, Y-axis servomotor and X-axis servomotor drive each self-driven travel mechanism, finish the uniformity of chromaticity of tested mobile phone screen 20 and measure.When measuring at the visual angle, system computer control objective table driven by servomotor controller 64, controller 64 rotates the objective table servomotors, by the visual angle measurement requirement, high precision, rotates objective table leggiero, finishes by the visual angle and measures.Servomotor is a closed-loop system, and angle can be located and decide to scrambler automatically in motor.The control command that its meeting is sent according to system computer moves or turns to the target location that control command is determined automatically.When measuring the visual angle, the one dimension center of rotation overlaps with the center of tested display screen, as long as rotate tested display screen, just can finish the visual angle and measure.Central point as display screen does not overlap with center of rotation, system computer sends carries out automatic tracking Control order, can control three-dimensional moving mechanism automatically and adjust the flash ranging point coordinate position of chroma and luminance measurement instrument or the position that the one dimension objective table turns to zero visual angle, realize that the one dimension center of rotation overlaps with the center of tested display screen from motion tracking.When measuring the display screen color homogeneity, can move by three-dimensional moving mechanism, realize distance between chroma and luminance measurement instrument measuring instrument and measurement point from motion tracking, the automaticity height.
Adopt another embodiment gantry type four dimensional automatic measurement of the utility model to constitute composition frame chart that mobile phone shields photochromic performance automatic checkout system as shown in Figure 7.This mobile phone shields the composition of photochromic performance automatic checkout system and a last embodiment gantry type four dimensional automatic measurement and constitutes mobile phone to shield the composition of photochromic performance automatic checkout system basic identical.Gantry type four dimensional automatic measurement adopts small-sized test desk, the chroma and luminance measurement instrument adopts BM-7 type color luminance meter, X-axis motor, y-axis motor, Z spindle motor and article carrying platform motor all adopt stepper motor, and model reaches FHB368 in being, stepper motor driver adopts Q3HB64MA.Multichannel step motor drive controller 71 adopts relay control step motor-driven to output to X-axis motor, y-axis motor, Z spindle motor respectively.Possible step-out during the stepper motor rotating, scrambler 27 of stepper motor arrangement to one dimension article carrying platform 2, scrambler is the relative coding device, adopt incremental optical electric pulse type scrambler, by the angle of control circuit 74, can improve the visual angle and rotate control accuracy according to the output judgement objective table of scrambler.
In order further to improve the measuring accuracy that mobile phone shields photochromic performance automatic checkout system, the utility model also comprises Fig. 7 embodiment gantry type four dimensional automatic measurement is made improvements, stepper motor to X-axis, Y-axis, Z axle respectively disposes a scrambler, and scrambler adopts incremental optical electric pulse type scrambler.
Planer type structure four dimensional automatic measurement platform comprises large, medium and small specification.Shield photochromic performance automatic checkout system when adopting small dimension planer type structure four dimensional automatic measurement platform to form mobile phone, under the system computer management, can move control circuit by each platform, controlling mobile phone neatly shields the three-dimensional mobile platform of photochromic performance and finishes and three-dimensionally accurately move, can shield photochromic performance test request according to mobile phone, the feasible chroma and luminance measurement instrument that is installed on the three-dimensional mobile platform, system can shield photochromic performance test request according to mobile phone and accurately adjust the coordinate points position and accurately adjust the visual angle that tested mobile phone shields in the one dimension direction at three-dimensional, finishes the automatic detection of its photochromic performance fast.
The utility model gantry type four dimensional automatic measurement can be widely used in LCD, LED TV screen, display screen, color homogeneities such as mobile phone screen, photochromism performance automatic checkout systems such as visual angle.Have vast market prospect, can obtain tangible economic and social benefit.
Claims (5)
1. be used to detect the gantry type four dimensional automatic measurement of the photochromic performance of display screen, it is characterized in that: it to the three-dimensional mobile platform of planer-type that automatic travel mechanism, the axially automatic travel mechanism of Z and base combination constitute, also is equipped with one dimension article carrying platform on the three-dimensional mobile platform of planer-type by the automatic travel mechanism of X axis, Y-axis; Wherein:
The Z axial moving mechanism is a stand formula screw mandrel drive mechanism, and it mainly is made of, shaft coupling, Z axial filament bar plate, Z spindle motor and aviation plug seat, Z axial filament bar, bearing seat, Z axle take-up housing Z axis mechanism base plate, Z axle track; Z axle track is fixed on the Z axis mechanism base plate with a pair of Z axle bearing seat, Z spindle motor and aviation plug seat, Z axial filament bar, Z axial filament stem nut is installed on the Z axial filament bar plate, the a pair of take-up housing that Z axial filament bar plate is installed in Z axle track to last, shaft coupling connects Z axial filament bar and the rotating shaft of Z spindle motor, and the The Cloud Terrace joint of fixing photochromic measuring instrument is installed on the Z axial filament bar plate;
Y-axis is a planer-type screw mandrel drive mechanism to travel mechanism, and it mainly is made of, shaft coupling, Y-axis screw mandrel plate, y-axis motor and aviation plug seat, Y-axis screw mandrel, bearing seat, gantry beam slab, Y-axis track gantry upright post; The Y-axis track is fixed on the beam slab of gantry with pair of bearing, y-axis motor and aviation plug seat, Y-axis screw mandrel, gantry beam slab is rigidly fixed on the left and right gantry upright post, the Y-axis screw mandrel is perpendicular to left and right gantry upright post, Y-axis feed screw nut is installed on the Y-axis screw mandrel plate, to last, shaft coupling connects Y-axis screw mandrel and y-axis motor rotating shaft to a pair of take-up housing that Y-axis screw mandrel plate is installed in the Y-axis track;
X axis travel mechanism is a horizontal screw mandrel drive mechanism; It is that gantry base plate, X-axis motor and aviation socket constitute to, X-axis screw mandrel, bearing to, shaft coupling, X-axis screw mandrel plate by the X-axis track mainly, and it is its organization soleplate with base substrate; X-axis screw mandrel, bearing to, X-axis motor, aviation socket and X-axis track to secured in parallel on base substrate, X-axis feed screw nut is installed on the X-axis screw mandrel plate, a pair of take-up housing that X-axis screw mandrel plate is installed in the X-axis track to last; Shaft coupling connects X-axis screw mandrel and X-axis machine shaft;
Base is made of substrate and 4 adjustable for height footing; The adjustable height footing is symmetrically distributed in four angular zones of substrate;
The Z axial moving mechanism is fixed on the Y-axis screw mandrel plate by Z axis mechanism base plate, and Z axial filament bar is perpendicular to the Y-axis screw mandrel, and is parallel to left and right gantry upright post, and makes the Z axial filament bar of Z axial moving mechanism keep vertical with Y-axis to the Y-axis screw mandrel of travel mechanism;
To being rigidly fixed on the X-axis screw mandrel plate, perpendicular to X axis travel mechanism, the Y-axis screw mandrel keeps vertical with the X-axis screw mandrel to Y-axis to Y-axis to travel mechanism to the gantry upright post of travel mechanism;
The three-dimensional mobile platform of article carrying platform and planer-type is for fixedly to be rigidly connected, and the objective table of zero-bit state is vertical with the base plate of the three-dimensional mobile platform of planer-type, is furnished with one group on the loading flat board and installs and fixes the hole.
2. the gantry type four dimensional automatic measurement that is used to detect the photochromic performance of display screen according to claim 1 is characterized in that: described article carrying platform is a moment of torsion formula rotational structure; It is made of a pair of article carrying platform column, objective table, rotary electric machine, speed reduction unit, scrambler, turntable base plate and aviation socket; Wherein:
A pair of article carrying platform column is the support post of article carrying platform, and its lower end is that rigid vertical is connected with the turntable base plate; The right upper end of article carrying platform column has the pair of bearings hole, and the turntable right column is fixedly connected with speed reduction unit and rotary electric machine, rotary electric machine rotating shaft connection reducer; When adopting step motor drive, be connected with a scrambler on the turntable left column;
Objective table comprises a pair of swivel arm plate, loading platen, a pair of rotation balancing weight; Turn left and right arm plate one end and loading platen right angle is rigidly connected, the fixing balancing weight that rotates of the other end; Left-hand rotation swing arm plate embeds the left side rotating shaft, and the left side rotating shaft is connected on the bearing of left side column, and the rotating shaft that embeds right-hand rotation swing arm plate is connected to speed reduction unit;
Speed reduction unit is a harmonic speed reducer, and the rotating shaft of rotary electric machine connects harmonic speed reducer, and moment of torsion is slowed down converts the torque of objective table swivel arm plate to;
Scrambler can be absolute encoder or relative coding device, absolute encoder adopts 10 or 12 s' photoelectric encoder, the relative coding device adopts delta pulse type scrambler, and scrambler output connection control circuit is by the angle of control circuit according to the output judgement objective table of scrambler.
The turntable base plate is fixed on the baseplate substrate of three-dimensional mobile platform, is supported between the turntable side plate of the left and right sides;
The aviation socket of article carrying platform connects rotary electric machine and rotary electric machine control circuit.
3. the gantry type four dimensional automatic measurement that is used to detect the photochromic performance of display screen according to claim 1 and 2, it is characterized in that: the left-hand rotation swing arm plate of described objective table, with bearing to being fulcrum, right-hand rotation swing arm plate is fulcrum with the speed reduction unit, with about upright constitute mechanical rotation and be connected;
Embed on the left column bearings left side rotating shaft is installed, the left side rotating shaft embeds turntable left arm plate, and the right side rotating shaft that embeds right-hand rotation swing arm plate embeds speed reduction unit; What installed swivel arm plate upper end is objective table static balancing balancing weight.
4. the gantry type four dimensional automatic measurement that is used to detect the photochromic performance of display screen according to claim 1, it is characterized in that: connect a The Cloud Terrace joint on the Z axial filament bar plate of described Z axial moving mechanism, the The Cloud Terrace joint can be installed various model chroma and luminance measurement instrument.
5. the gantry type four dimensional automatic measurement that is used to detect the photochromic performance of display screen according to claim 1 and 2, it is characterized in that: X, the Y of the three-dimensional mobile platform of described planer-type, the motor of Z three-dimensional moving mechanism all are servomotor or stepper motor, connect the aviation socket in the mechanism separately respectively, and respectively having the cable of a band aviation plug to connect corresponding mobile control circuit, each moves driver or three shared stepper motor drivers of mobile control circuit that control circuit adopts single servo motor or stepper motor.
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| CNU2007201140194U CN201122421Y (en) | 2007-08-29 | 2007-08-29 | Gantry type four-dimensional automatic measurement bench for detecting optical color performance of display screen |
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| CNU2007201140194U CN201122421Y (en) | 2007-08-29 | 2007-08-29 | Gantry type four-dimensional automatic measurement bench for detecting optical color performance of display screen |
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| CN104344941B (en) * | 2013-07-23 | 2017-08-04 | 上海斐讯数据通信技术有限公司 | For detecting display screen and the tool and detection method of light sensation equipment |
| CN104390707A (en) * | 2014-11-25 | 2015-03-04 | 华南理工大学 | LED (light-emitting diode) color vector testing method and device |
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