CN102706286B - Laser measurement device for thickness of plate - Google Patents

Laser measurement device for thickness of plate Download PDF

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Publication number
CN102706286B
CN102706286B CN201210209401.9A CN201210209401A CN102706286B CN 102706286 B CN102706286 B CN 102706286B CN 201210209401 A CN201210209401 A CN 201210209401A CN 102706286 B CN102706286 B CN 102706286B
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China
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arm
laser displacement
output terminal
mounting seat
input
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CN201210209401.9A
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Chinese (zh)
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CN102706286A (en
Inventor
凡晓波
黄怡晨
薛刚
张子豪
刘霞靓
张一博
刘睿
何祝斌
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哈尔滨工业大学
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Abstract

The invention discloses a laser measurement device for the thickness of a plate, and relates to a laser measurement device. In order to the solve the problems that as for a conventional laser measurement method, continuous measurement for the thickness of the plate can not be carried out, the technical scheme I is adopted as follows: an upper arm and a lower arm are arranged in parallel; the upper arm is connected with a side arm; the lower arm is connected with a lateral wall of a U-shaped slide rail; the side arm is connected with chutes in a sliding manner; a horizontal gear on the side arm is meshed with a gear wheel; an upper and a lower laser displacement sensors are respectively fixed on the upper and the lower arms; a long-arm clamp is fixed on a support which is fixed on one group of rollers; two groups of rollers roll along a guidance groove of a guidance rail; each group of rollers are limited through two limiting mechanisms; the side wall is fixed on a working table; the guidance rail is fixed on an upper installation base of an upper motion platform; an upper bracket of the upper motion platform is fixed on a lower installation base of a lower motion platform; and the lower motion platform is arranged in the working table. The technical scheme II is different from the technical scheme I, the side wall is fixed on the upper installation base of the upper motion platform. Due to the adoption of the device provided by the invention, continuous measurement for the thickness of the plate can be carried out.

Description

The laser measuring device for measuring of sheet material thickness of slab

Technical field

The present invention relates to a kind of laser measuring device for measuring, be specifically related to a kind of laser measuring device for measuring of sheet material thickness of slab.

Background technology

In industrial processes, sheet material thickness of slab homogeneity is to affect a key factor of later stage shaping, is one of important symbol that whether qualified gauge sheet metal is.Fast and effeciently measure thickness of slab in the front plate plane that is shaped and distribute, can provide basis for later stage forming effect analysis.In high precision fields such as Aeronautics and Astronautics and deep-sea detectings, before plate material parts is shaped, to thickness of slab, distribution requires more strict.

Existing thickness measuring mode mainly contains two classes, and a class is contact thickness measuring mode, and as milscale and ultrasonic thickness test, it before measuring needs institute's measuring point to carry out mark, and needs artificially to measure, and easily introduces accidental error during measurement, affects measuring accuracy.During milscale thickness measuring, its jib-length is limited, is difficult to sheet material central area thickness of slab to be measured under nondestructive prerequisite.During ultrasonic thickness test, its probe size is larger, and facing mutually measuring head spacing can not be too little, and resolution is low.Another kind of is non contact thickness gaging mode, as X-ray ga(u)ging and thickness measurement with laser.The principle that when X-ray ga(u)ging utilizes X ray penetrable material, decay occurs is carried out thickness measuring, thickness measurement with laser is to utilize by the laser-correlation of two laser displacement sensors, measured body is placed in correlation region, according to measuring the distance of two laser displacement sensors to tested plate body upper surface and lower surface, calculate the thickness of tested plate body, above-mentioned these two kinds of thickness measuring modes have all been applied in the operation of rolling in sheet metal thickness measuring process.Because above-mentioned these two kinds of methods are all fixed on plate body on an immovable fixed mount and carry out thickness measuring, its essence is all to adopt single-point thickness measuring mode, cannot realize the continuous coverage to thickness of slab in whole plate plane.

Summary of the invention

The laser measuring device for measuring that the object of this invention is to provide a kind of sheet material thickness of slab, adopts existing thickness measurement with laser method cannot realize the problem of sheet material thickness of slab being carried out to continuous coverage to solve.

The present invention addresses the above problem the technical scheme of taking to have following two, respectively:

Scheme one: a kind of laser measuring device for measuring of sheet material thickness of slab, described laser measuring device for measuring comprises underarm, side arm, micromatic setting, upper arm, stationary platform, work top, two laser displacement sensors, two motion platforms and four position-limit mechanisms; Micromatic setting comprises drive motor, gear train, gear, wheel shaft and U-shaped slide rail, stationary platform comprises guide rail, two Long arm clamps, two bearings and two groups of rollers, two motion platforms are respectively upper motion platform and lower motion platform, and two laser displacement sensors are respectively upper laser displacement sensor and lower laser displacement sensor;

Upper arm and underarm are upper and lower parallel and be set up in parallel, side arm and U-shaped slide rail all arrange along vertical, one end of upper arm is connected with side arm, one end of underarm is connected with the lateral wall of U-shaped slide rail, on two madial walls of U-shaped slide rail, be processed with chute, side arm and chute are slidably connected, on one side elevation of side arm, along its short transverse, be equidistantly processed with several horizontal teeth, horizontal teeth on side arm and gear engagement, gear is arranged in the opening of U-shaped slide rail, the driven rotatable parts of gear and gear train are all rotatably installed on same wheel shaft, two madial walls of wheel shaft and U-shaped slide rail are rotationally connected, the active rotation parts of gear train are arranged on the output shaft of drive motor, the lower surface of upper arm is fixed with laser displacement sensor, the lower surface of underarm is fixed with lower laser displacement sensor, two laser displacement sensors are oppositely arranged, two bearings vertically arrange, on each bearing, fix a Long arm clamp, two Long arm clamps relatively and be arranged in parallel with upper arm, the lower end of each bearing is fixed on corresponding one group of roller, on guide rail, be provided with along its length gathering sill, two groups of rollers are done rolling movement along the gathering sill of guide rail, guide rail is vertical with Long arm clamp to be arranged, every group of roller is spacing by two position-limit mechanisms, two position-limit mechanisms are arranged on guide rail, the lower end of side arm is fixed on work top, guide rail is fixed in the upper mounting seat of motion platform, the upper bracket of upper motion platform is fixed in the lower mounting seat of lower motion platform, work top is provided with open slot, lower motion platform is arranged in the open slot of work top, upper laser displacement sensor and lower laser displacement sensor are simultaneously to the upper surface of tested sheet material and the relative position Emission Lasers of lower surface, upper laser displacement sensor sends to upper amplifier to the range information of tested sheet material upper surface, the output terminal of upper amplifier is connected with the first input end of A/D converter, lower laser displacement sensor sends to lower amplifier to the range information of tested sheet material lower surface, the output terminal of lower amplifier is connected with the second input end of A/D converter, the output terminal of A/D converter is connected with the first input end of analytic system,

The movement directive output terminal of upper stepper motor is connected with the input end of upper driver, the output terminal of upper driver is connected with the first input end of D/A converter, the movement directive output terminal of lower stepper motor is connected with the input end of lower driver, the output terminal of lower driver is connected with the second input end of D/A converter, the output terminal of D/A converter is connected with the input end of control system, the output terminal of control system is connected with the second input end of analytic system, the output terminal of analytic system is connected with the input end of the display of computing machine, be used for showing tested sheet material thickness of slab distribution situation.

Scheme two: a kind of laser measuring device for measuring of sheet material thickness of slab, described laser measuring device for measuring comprises underarm, side arm, micromatic setting, upper arm, stationary platform, work top, two laser displacement sensors, two motion platforms and four position-limit mechanisms; Micromatic setting comprises drive motor, gear train, gear, wheel shaft and U-shaped slide rail, stationary platform comprises guide rail, two Long arm clamps, two bearings and two groups of rollers, two motion platforms are respectively upper motion platform and lower motion platform, and two laser displacement sensors are respectively upper laser displacement sensor and lower laser displacement sensor;

Upper arm and underarm are upper and lower parallel and be set up in parallel, side arm and U-shaped slide rail all arrange along vertical, one end of upper arm is connected with side arm, one end of underarm is connected with the lateral wall of U-shaped slide rail, on two madial walls of U-shaped slide rail, be processed with chute, side arm and chute are slidably connected, on one side elevation of side arm, along its short transverse, be equidistantly processed with several horizontal teeth, horizontal teeth on side arm and gear engagement, gear is arranged in the opening of U-shaped slide rail, the driven rotatable parts of gear and gear train are all rotatably installed on same wheel shaft, two madial walls of wheel shaft and U-shaped slide rail are rotationally connected, the active rotation parts of gear train are arranged on the output shaft of drive motor, the lower surface of upper arm is fixed with laser displacement sensor, the lower surface of underarm is fixed with lower laser displacement sensor, two laser displacement sensors are oppositely arranged, two bearings vertically arrange, on each bearing, fix a Long arm clamp, two Long arm clamps relatively and be arranged in parallel with upper arm, the lower end of each bearing is fixed on corresponding one group of roller, on guide rail, be provided with along its length gathering sill, two groups of rollers are done rolling movement along the gathering sill of guide rail, guide rail is vertical with Long arm clamp to be arranged, every group of roller is spacing by two position-limit mechanisms, two position-limit mechanisms are arranged on guide rail, the lower end of guide rail is fixed on work top, the lower end of side arm is fixed in mounting seat, the upper bracket of upper motion platform is fixed in the lower mounting seat of lower motion platform, work top is provided with open slot, lower motion platform is arranged in the open slot of work top,

Upper laser displacement sensor and lower laser displacement sensor are simultaneously to the upper surface of tested sheet material and the relative position Emission Lasers of lower surface, upper laser displacement sensor sends to upper amplifier to the range information of tested sheet material upper surface, the output terminal of upper amplifier is connected with the first input end of A/D converter, lower laser displacement sensor sends to lower amplifier to the range information of tested sheet material lower surface, the output terminal of lower amplifier is connected with the second input end of A/D converter, and the output terminal of A/D converter is connected with the first input end of analytic system, the movement directive output terminal of upper stepper motor is connected with the input end of upper driver, the output terminal of upper driver is connected with the first input end of D/A converter, the movement directive output terminal of lower stepper motor is connected with the input end of lower driver, the output terminal of lower driver is connected with the second input end of D/A converter, the output terminal of D/A converter is connected with the input end of control system, the output terminal of control system is connected with the second input end of analytic system, the output terminal of analytic system is connected with the input end of the display of computing machine, be used for showing tested sheet material thickness of slab distribution situation.

The invention has the beneficial effects as follows: one, micromatic setting is set and can realizes parallel distance adjusting between upper arm and underarm; Two, choose the laser displacement sensor of different ranges, realize the continuous coverage that different-thickness sheet material distributes; Three, utilize the laser-correlation of two laser displacement sensors, tested sheet material is placed in correlation region, according to the distance of measuring tested sheet material upper surface and lower surface, calculate the thickness of tested sheet material, tested sheet material can be realized X, Y both direction rectilinear motion, thereby obtains the thickness of slab in the whole contoured surface of sheet material; Four, two motion platforms all adopt stepper motor to drive, control signal frequency and umber of pulse are depended in platform movement velocity and displacement, not affected by load variations, do not need displacement transducer can feed back to X, Y-direction movement velocity and displacement, be convenient to the data processing in later stage and the synchronism of motion; Five, the present invention processes by late time data, data correction when introducing laser displacement sensor correlation and sheet material normal direction are not parallel, and the out-of-flatness plate plane thickness of slab that can realize certain fluctuating distributes and accurately measures; Six, the present invention can show sheet material thickness of slab distribution situation in real time by the display of computing machine.

Accompanying drawing explanation

Fig. 1 is one-piece construction schematic perspective view of the present invention, demonstration be the one-piece construction of scheme one, in figure, micromatic setting does not represent; Fig. 2 is the sectional view of sheet material; Fig. 3 is one-piece construction schematic perspective view of the present invention, demonstration be the one-piece construction of scheme two, in figure, micromatic setting does not represent; Fig. 4 is the front view of micromatic setting and side arm, upper arm and underarm assembling; Fig. 5 is the partial front elevation view of the horizontal teeth engagement on gear and side arm; Fig. 6 is the A-A cut-open view of Fig. 4; Fig. 7 is the front view of position-limit mechanism and roller set assembling; Fig. 8 is the vertical view of Fig. 1; Fig. 9 is schematic diagram of the present invention; Figure 10 is the B portion enlarged drawing of Fig. 1; Figure 11 is the C portion enlarged drawing of Fig. 3.

Note: Fig. 1 is the direction parallel with underarm with upper arm with the X-direction in Fig. 3; Y-direction is the direction vertical with underarm with upper arm.

Embodiment

Embodiment one: illustrate in conjunction with Fig. 1, Fig. 2 and Fig. 4 to Figure 10, the laser measuring device for measuring of the sheet material thickness of slab of present embodiment, described laser measuring device for measuring comprises underarm 1, side arm 2, micromatic setting 3, upper arm 4, stationary platform 6, work top 7, two laser displacement sensors 5, two motion platforms 8 and four position-limit mechanisms 9; Micromatic setting 3 comprises drive motor 3-1, gear train 3-2, gear 3-3, wheel shaft 3-4 and U-shaped slide rail 3-5, stationary platform 6 comprises guide rail 6-1, two Long arm clamp 6-2, two bearing 6-3 and two groups of roller 6-4, two motion platforms 8 are respectively upper motion platform 8-1 and lower motion platform 8-2, and two laser displacement sensors 5 are respectively upper laser displacement sensor 5-1 and lower laser displacement sensor 5-2;

Upper arm 4 and underarm are parallel and be set up in parallel Shang Xia 1, side arm 2 and U-shaped slide rail 3-5 all arrange along vertical, one end of upper arm 4 is connected with side arm 2, one end of underarm 1 is connected with the lateral wall of U-shaped slide rail 3-5, on two madial walls of U-shaped slide rail 3-5, be processed with chute, side arm 2 and chute be slidably connected (realize between upper arm 4 and underarm 1 parallel distance regulate), on one side elevation of side arm 2, along its short transverse, be equidistantly processed with several horizontal teeth 2-1, horizontal teeth 2-1 on side arm 2 and gear 3-3 engagement, gear 3-3 is arranged in the opening of U-shaped slide rail 3-5, the driven rotatable parts 3-2-1 of gear 3-3 and gear train 3-2 is all rotatably installed on same wheel shaft 3-4, two madial walls of wheel shaft 3-4 and U-shaped slide rail 3-5 are rotationally connected, the active rotation parts 3-2-2 of gear train 3-2 is arranged on the output shaft of drive motor 3-1, the lower surface of upper arm 4 is fixed with laser displacement sensor 5-1, the lower surface of underarm 1 is fixed with lower laser displacement sensor 5-2, two laser displacement sensors 5 are oppositely arranged, two bearing 6-3 vertically arrange, on each bearing 6-3, fix a Long arm clamp 6-2, two Long arm clamp 6-2 relatively and be arranged in parallel with upper arm 4 (Long arm clamp 6-2 is used for clamping tested sheet material 10), the lower end of each bearing 6-3 is fixed on corresponding one group of roller 6-4, on guide rail 6-1, be provided with along its length gathering sill, two groups of roller 6-4 do rolling movement along the gathering sill of guide rail 6-1, guide rail 6-1 arranges with Long arm clamp 6-2 is vertical, every group of roller 6-4 (makes roller 6-4 rest on ad-hoc location by two position-limit mechanisms 9 are spacing, thereby realized the fixing of the tested sheet material 10 of different length), two position-limit mechanisms 9 are arranged on guide rail 6-1, the lower end of side arm 2 is fixed on work top 7, guide rail 6-1 is fixed on the upper mounting seat 8-1-1 of motion platform 8-1, the upper bracket 8-1-2 of upper motion platform 8-1 is fixed on the lower mounting seat 8-2-1 of lower motion platform 8-2, work top 7 is provided with open slot 7-1, lower motion platform 8-2 is arranged in the open slot 7-1 of work top 7,

Upper laser displacement sensor 5-1 and lower laser displacement sensor 5-2 are simultaneously to the upper surface of tested sheet material 10 and the relative position Emission Lasers of lower surface, upper laser displacement sensor 5-1 sends to upper amplifier 12 to the range information of tested sheet material 10 upper surfaces, the output terminal of upper amplifier 12 is connected with the first input end of A/D converter 13, lower laser displacement sensor 5-2 sends to lower amplifier 14 to the range information of tested sheet material 10 lower surfaces, the output terminal of lower amplifier 14 is connected with the second input end of A/D converter 13, the output terminal of A/D converter 13 is connected with the first input end of analytic system 15, the movement directive output terminal of upper stepper motor 8-1-5 is connected with the input end of upper driver 16, the output terminal of upper driver is connected with the first input end of D/A converter 17, the movement directive output terminal of lower stepper motor 8-2-5 is connected with the input end of lower driver 18, the output terminal of lower driver 18 is connected with the second input end of D/A converter 17, the output terminal of D/A converter 17 is connected with the input end of control system 19, the output terminal of control system 19 is connected with the second input end of analytic system 15, the output terminal of analytic system 15 is connected with the input end of the display of computing machine 20, be used for showing tested sheet material 10 thickness of slab distribution situations.What the output command of control system 19 was finally controlled is the position that support 6-3 moves.

Gear train 3-2 is tape handler or chain-drive mechanism, and driven rotatable parts 3-2-1 is driven pulley or driven sprocket, and the 3-2-2 of active rotation mechanism is driving pulley or drive sprocket.

Embodiment two: in conjunction with Fig. 1 explanation, upper motion platform 8-1 comprises mounting seat 8-1-1, upper bracket 8-1-2, upper ball screw 8-1-3, upper coupling 8-1-4 and upper stepper motor 8-1-5 described in present embodiment;

Upper mounting seat 8-1-1 is arranged on upper bracket 8-1-2, upper mounting seat 8-1-1 is connected with upper ball screw 8-1-3, the rotating shaft of upper stepper motor 8-1-5 is connected with upper ball screw 8-1-3 by upper coupling 8-1-4, by mounting seat 8-1-1 in upper stepper motor 8-1-5 driving, on upper bracket 8-1-2, slided, lower motion platform 8-2 comprises lower mounting seat 8-2-1, lower carriage 8-2-2, lower ball screw 8-2-3, lower coupler 8-2-4 and lower stepper motor 8-2-5, upper bracket 8-1-2 is fixed on lower mounting seat 8-2-1, lower mounting seat 8-2-1 is arranged on lower carriage 8-2-2, lower mounting seat 8-2-1 is connected with lower ball screw 8-2-3, the rotating shaft of lower stepper motor 8-2-5 is connected with lower ball screw 8-2-3 by lower coupler 8-2-4, by lower stepper motor 8-2-5, drive lower mounting seat 8-2-1 to slide on lower carriage 8-2-2.Other is identical with embodiment one.

Embodiment three: in conjunction with Fig. 1 explanation, on the upper arm 4 of present embodiment and underarm 1, edge length direction is separately provided with the accurate location that scale mark 11(can realize laser displacement sensor 5 respectively).Other is identical with embodiment one or two.

Embodiment four: in conjunction with Fig. 7 explanation, each position-limit mechanism 9 of present embodiment comprises locking post 9-1 and pressing plate 9-2, pressing plate 9-2 is provided with mounting hole, the upper end of locking post 9-1 fixedly wears out the mounting hole of pressing plate 9-2, the lower end of locking post 9-1 is placed in the gathering sill of guide rail 6-1, and every group of roller 6-4 is threaded with two locking post 9-1.Other is identical with embodiment two.

The course of work of scheme one is: lower motion platform 8-2 can drive motion platform 8-1 to move along X-direction, and upper motion platform 8-1 can drive stationary platform 6 to move along Y-direction.The adjustment of tested sheet material 10 positions is by two groups of roller 6-4 scrolling realization (referring to Fig. 1) in guide rail 6-1.

Embodiment five: in conjunction with Fig. 3 to Fig. 9 and Figure 11 explanation, laser measuring device for measuring comprises underarm 1, side arm 2, micromatic setting 3, upper arm 4, stationary platform 6, work top 7, two laser displacement sensors 5, two motion platforms 8 and four position-limit mechanisms 9 described in present embodiment;

Micromatic setting 3 comprises drive motor 3-1, gear train 3-2, gear 3-3, wheel shaft 3-4 and U-shaped slide rail 3-5, stationary platform comprises guide rail 6-1, two Long arm clamp 6-2, two bearing 6-3 and two groups of roller 6-4, two motion platforms 8 are respectively upper motion platform 8-1 and lower motion platform 8-2, and two laser displacement sensors 5 are respectively upper laser displacement sensor 5-1 and lower laser displacement sensor 5-2, upper arm 4 and underarm are parallel and be set up in parallel Shang Xia 1, side arm 2 and U-shaped slide rail 3-5 all arrange along vertical, one end of upper arm 4 is connected with side arm 2, one end of underarm 1 is connected with the lateral wall of U-shaped slide rail 3-5, on two madial walls of U-shaped slide rail 3-5, be processed with chute, side arm 2 and chute be slidably connected (realize between upper arm 4 and underarm 1 parallel distance regulate), on one side elevation of side arm 2, along its short transverse, be equidistantly processed with several horizontal teeth 2-1, horizontal teeth 2-1 on side arm 2 and gear 3-3 engagement, gear 3-3 is arranged in the opening of U-shaped slide rail 3-5, the driven rotatable parts 3-2-1 of gear 3-3 and gear train 3-2 is all rotatably installed on same wheel shaft, two madial walls of wheel shaft 3-4 and U-shaped slide rail 3-5 are rotationally connected, the active rotation parts 3-2-2 of gear train 3-2 is arranged on the output shaft of drive motor 3-1, the lower surface of upper arm 4 is fixed with laser displacement sensor 5-1, the lower surface of underarm 1 is fixed with lower laser displacement sensor 5-2, two laser displacement sensors 5 are oppositely arranged, two bearing 6-3 vertically arrange, on each bearing 6-3, fix a Long arm clamp 6-2, two Long arm clamp 6-2 relatively and be arranged in parallel with upper arm 4 (Long arm clamp 6-2 is used for clamping tested sheet material 10), the lower end of each bearing 6-3 is fixed on corresponding one group of roller 6-4, on guide rail 6-1, be provided with along its length gathering sill, two groups of roller 6-4 do rolling movement along the gathering sill of guide rail 6-1, guide rail 6-1 arranges with Long arm clamp 6-2 is vertical, every group of roller 6-4 (makes roller 6-4 rest on ad-hoc location by two position-limit mechanisms 9 are spacing, thereby realized the fixing of the tested sheet material 10 of different length), two position-limit mechanisms 9 are arranged on guide rail 6-1, the lower end of guide rail 6-1 is fixed on work top 7, the lower end of side arm 2 is fixed on mounting seat 8-1-1, the upper bracket 8-1-2 of upper motion platform 8-1 is fixed on the lower mounting seat 8-2-1 of lower motion platform 8-2, work top 7 is provided with open slot 7-1, lower motion platform 8-2 is arranged in the open slot 7-1 of work top 7,

Upper laser displacement sensor 5-1 and lower laser displacement sensor 5-2 are simultaneously to the upper surface of tested sheet material 10 and the relative position Emission Lasers of lower surface, upper laser displacement sensor 5-1 sends to upper amplifier 12 to the range information of tested sheet material 10 upper surfaces, the output terminal of upper amplifier 12 is connected with the first input end of A/D converter 13, lower laser displacement sensor 5-2 sends to lower amplifier 14 to the range information of tested sheet material 10 lower surfaces, the output terminal of lower amplifier 14 is connected with the second input end of A/D converter 13, the output terminal of A/D converter 13 is connected with the first input end of analytic system 15, the movement directive output terminal of upper stepper motor 8-1-5 is connected with the input end of upper driver 16, the output terminal of upper driver 16 is connected with the first input end of D/A converter 17, the movement directive output terminal of lower stepper motor 8-2-5 is connected with the input end of lower driver 18, the output terminal of lower driver 18 is connected with the second input end of D/A converter 17, the output terminal of D/A converter 17 is connected with the input end of control system 19, the output terminal of control system 19 is connected with the second input end of analytic system 15, the output terminal of analytic system 15 is connected with the input end of the display of computing machine 20, be used for showing tested sheet material 10 thickness of slab distribution situations.What the output command of control system 19 was finally controlled is the shift position of side arm.

Gear train 3-2 is tape handler or chain-drive mechanism, and driven rotatable parts 3-2-1 is driven pulley or driven sprocket, and the 3-2-2 of active rotation mechanism is driving pulley or drive sprocket.

Embodiment six: in conjunction with Fig. 3 explanation, upper motion platform 8-1 comprises mounting seat 8-1-1, upper bracket 8-1-2, upper ball screw 8-1-3, upper coupling 8-1-4 and upper stepper motor 8-1-5 described in present embodiment;

Upper mounting seat 8-1-1 is arranged on upper bracket 8-1-2, upper mounting seat 8-1-1 is connected with upper ball screw 8-1-3, the rotating shaft of upper stepper motor 8-1-5 is connected with upper ball screw 8-1-3 by upper coupling 8-1-4, by mounting seat 8-1-1 in upper stepper motor 8-1-5 driving, on upper bracket 8-1-2, slided, described lower motion platform 8-2 comprises lower mounting seat 8-2-1, lower carriage 8-2-2, lower ball screw 8-2-3, lower coupler 8-2-4 and lower stepper motor 8-2-5, upper bracket 8-1-2 is fixed on lower mounting seat 8-2-1, lower mounting seat 8-2-1 is arranged on lower carriage 8-2-2, lower mounting seat 8-2-1 is connected with lower ball screw 8-2-3, the rotating shaft of lower stepper motor 8-2-5 is connected with lower ball screw 8-2-3 by lower coupler 8-2-4, by lower stepper motor 8-2-5, drive lower mounting seat 8-2-1 to slide on lower carriage 8-2-2.Other is identical with embodiment five.

Embodiment seven: in conjunction with Fig. 3 explanation, on the upper arm 4 of present embodiment and underarm 1, edge length direction is separately provided with the accurate location that scale mark 11(can realize laser displacement sensor 5 respectively).Other is identical with embodiment five or six.

Embodiment eight: in conjunction with Fig. 7 explanation, each position-limit mechanism 9 of present embodiment comprises locking post 9-1 and pressing plate 9-2, pressing plate 9-2 is provided with mounting hole, the upper end of locking post 9-1 fixedly wears out the mounting hole of pressing plate 9-2, the lower end of locking post 9-1 is placed in the gathering sill of guide rail 6-1, and every group of roller 6-4 and two locking post 9-1 screw threads connect/connect.Other is identical with embodiment five.

The course of work of scheme two: lower motion platform 8-2 can drive motion platform 8-1 to move along X-direction, upper motion platform 8-1 can drive side arm 2 to move along Y-direction, thereby drives two laser displacement sensors 5 to move along Y-direction.The adjustment of tested sheet material 10 positions is by two groups of roller 6-4 scrolling realization (referring to Fig. 3) in guide rail 6-1.

In the present invention, tested sheet material 10 is clamped on Long arm clamp 6, keeps tested sheet material 10 parallel with work top 7, and be positioned at laser-correlation region, the length in described laser-correlation region is 10mm-50mm, can Thickness Measurement by Microwave be that 0.1-40mm(please proofread) sheet material, measuring accuracy is 0.01mm; Distance adjustable extent between upper arm 4 and underarm 1 is: 100-300mm.

Adopt two stepper motors 14 as driver element, drive two mounting seat 10 to do rectilinear motion, realize tested sheet material along X, Y-direction linear reciprocating motion, movement velocity is less than or equal to 20mm/s, and movable distance is less than or equal to 500mm.

Employing computing machine is host computer, by A/D converter, gathers laser displacement signal, calculate tested sheet material thickness of slab, by recording pulse signal frequency, umber of pulse and stepper motor step angle, feedback X, Y-direction movement velocity and displacement, obtain thickness of slab in tested sheet material profile plane and distribute.

Embodiment nine: as shown in Figure 2, certain tested sheet material 10 of out-of-flatness rising and falling is horizontally disposed with and passes through 6 clampings of two Long arm clamps, and laser-correlation beam direction and tested sheet material 10 each point normal direction are not parallel, cause that surveyed wall thickness value is bigger than normal.When late time data is processed, adopt data correction to obtain wall thickness value accurately.In Fig. 2, x represents actual (real) thickness, h represents detect thickness, and what d1 represented is the actual range difference that upper laser displacement sensor records, the actual range difference that under being that d2 represents, laser displacement sensor records, l is tested sheet material moving step pitch, hour, between corresponding two test points of moving step pitch, line myopia is current some tangent line to moving step pitch, and tangent line and horizontal direction angle are θ, the central point O of detect thickness h of take represents a little as thickness measure

θ = arctan d 1 + d 2 2 l

Have

cos θ = 2 l ( d 1 + d 2 ) 2 + 4 l 2

Therefore the thickness of O point sheet material is

x = h × cos θ = h 2 l ( d 1 + d 2 ) 2 + 4 l 2

By this formula, can realize the out-of-flatness sheet material wall thickness of certain fluctuating and accurately measure, measuring error is controlled in per mille.Meanwhile, for cardioptosia in the sheet material fixedly causing because of two ends, this formula can also accurately be revised.Other is identical with embodiment one, two, three, four, five, six, seven or eight.

Claims (8)

1. a laser measuring device for measuring for sheet material thickness of slab, is characterized in that: described laser measuring device for measuring comprises underarm (1), side arm (2), micromatic setting (3), upper arm (4), stationary platform (6), work top (7), two laser displacement sensors (5), two motion platforms (8) and four position-limit mechanisms (9); Micromatic setting (3) comprises drive motor (3-1), gear train (3-2), gear (3-3), wheel shaft (3-4) and U-shaped slide rail (3-5), stationary platform (6) comprises guide rail (6-1), two Long arm clamps (6-2), two bearings (6-3) and two groups of rollers (6-4), two motion platforms (8) are respectively upper motion platform (8-1) and lower motion platform (8-2), and two laser displacement sensors (5) are respectively upper laser displacement sensor (5-1) and lower laser displacement sensor (5-2);
Upper arm (4) and underarm (1) are upper and lower parallel and be set up in parallel, side arm (2) and U-shaped slide rail (3-5) all arrange along vertical, one end of upper arm (4) is connected with side arm (2), one end of underarm (1) is connected with the lateral wall of U-shaped slide rail (3-5), on two madial walls of U-shaped slide rail (3-5), be processed with chute, side arm (2) is slidably connected with chute, on one side elevation of side arm (2), along its short transverse, be equidistantly processed with several horizontal teeth (2-1), horizontal teeth (2-1) on side arm (2) and gear (3-3) engagement, gear (3-3) is arranged in the opening of U-shaped slide rail (3-5), gear (3-3) is all rotatably installed on same wheel shaft (3-4) with the driven rotatable parts (3-2-1) of gear train (3-2), wheel shaft (3-4) is rotationally connected with two madial walls of U-shaped slide rail (3-5), the active rotation parts (3-2-2) of gear train (3-2) are arranged on the output shaft of drive motor (3-1), the lower surface of upper arm (4) is fixed with laser displacement sensor (5-1), the lower surface of underarm (1) is fixed with lower laser displacement sensor (5-2), two laser displacement sensors (5) are oppositely arranged, two bearings (6-3) vertically arrange, on each bearing (6-3), fix a Long arm clamp (6-2), two Long arm clamps (6-2) relatively and be arranged in parallel with upper arm (4), the lower end of each bearing (6-3) is fixed on corresponding one group of roller (6-4), on guide rail (6-1), be provided with along its length gathering sill, two groups of rollers (6-4) are done rolling movement along the gathering sill of guide rail (6-1), guide rail (6-1) and the vertical setting of Long arm clamp (6-2), every group of roller (6-4) is spacing by two position-limit mechanisms (9), two position-limit mechanisms (9) are arranged on guide rail (6-1), the lower end of side arm (2) is fixed on work top (7), guide rail (6-1) is fixed in the upper mounting seat (8-1-1) of motion platform (8-1), the upper bracket (8-1-2) of upper motion platform (8-1) is fixed in the lower mounting seat (8-2-1) of lower motion platform (8-2), work top (7) is provided with open slot (7-1), lower motion platform (8-2) is arranged in the open slot (7-1) of work top 7, upper laser displacement sensor (5-1) and lower laser displacement sensor (5-2) are simultaneously to the upper surface of tested sheet material (10) and the relative position Emission Lasers of lower surface, upper laser displacement sensor (5-1) sends to upper amplifier (12) to the range information of tested sheet material (10) upper surface, (12 output terminal is connected with the first input end of A/D converter (13) upper amplifier, lower laser displacement sensor (5-2) sends to lower amplifier (14) to the range information of tested sheet material (10) lower surface, the output terminal of lower amplifier (14) is connected with the second input end of A/D converter (13), the output terminal of A/D converter (13) is connected with the first input end of analytic system (15),
The movement directive output terminal of upper stepper motor (8-1-5) is connected with the input end of upper driver (16), the output terminal of upper driver (16) is connected with the first input end of D/A converter (17), the movement directive output terminal of lower stepper motor (8-2-5) is connected with the input end of lower driver (18), the output terminal of lower driver (18) is connected with the second input end of D/A converter (17), the output terminal of D/A converter (17) is connected with the input end of control system (19), the output terminal of control system (19) is connected with the second input end of analytic system (15), the output terminal of analytic system (15) is connected with the input end of the display (20) of computing machine, be used for showing tested sheet material (10) thickness of slab distribution situation.
2. the laser measuring device for measuring of sheet material thickness of slab according to claim 1, is characterized in that: described upper motion platform (8-1) comprises mounting seat (8-1-1), upper bracket (8-1-2), upper ball screw (8-1-3), upper coupling (8-1-4) and upper stepper motor (8-1-5);
Upper mounting seat (8-1-1) is arranged on upper bracket (8-1-2), upper mounting seat (8-1-1) is connected with upper ball screw (8-1-3), the rotating shaft of upper stepper motor (8-1-5) is connected with upper ball screw (8-1-3) by upper coupling (8-1-4), by mounting seat (8-1-1) in upper stepper motor (8-1-5) driving, at upper bracket (8-1-2), above slided, described lower motion platform (8-2) comprises lower mounting seat (8-2-1), lower carriage (8-2-2), lower ball screw (8-2-3), lower coupler (8-2-4) and lower stepper motor (8-2-5), upper bracket (8-1-2) is fixed in lower mounting seat (8-2-1), lower mounting seat (8-2-1) is arranged on lower carriage (8-2-2), lower mounting seat (8-2-1) is connected with lower ball screw (8-2-3), the rotating shaft of lower stepper motor (8-2-5) is connected with lower ball screw (8-2-3) by lower coupler (8-2-4), by lower stepper motor (8-2-5), drive lower mounting seat (8-2-1) in the upper slip of lower carriage (8-2-2).
3. according to the laser measuring device for measuring of sheet material thickness of slab described in claim 1 or 2, it is characterized in that: on upper arm (4) and underarm (1), edge length direction is separately provided with scale mark (11) respectively.
4. the laser measuring device for measuring of sheet material thickness of slab according to claim 2, it is characterized in that: each position-limit mechanism (9) comprises locking post (9-1) and pressing plate (9-2), pressing plate (9-2) is provided with mounting hole, the upper end of locking post (9-1) fixedly wears out the mounting hole of pressing plate (9-2), the lower end of locking post (9-1) is placed in the gathering sill of guide rail (6-1), and every group of roller (6-4) is threaded with two locking posts (9-1).
5. a laser measuring device for measuring for sheet material thickness of slab, is characterized in that: described laser measuring device for measuring comprises underarm (1), side arm (2), micromatic setting (3), upper arm (4), stationary platform (6), work top (7), two laser displacement sensors (5), two motion platforms (8) and four position-limit mechanisms (9); Micromatic setting (3) comprises drive motor (3-1), gear train (3-2), gear (3-3), wheel shaft (3-4) and U-shaped slide rail (3-5), stationary platform comprises guide rail (6-1), two Long arm clamps (6-2), two bearings (6-3) and two groups of rollers (6-4), two motion platforms (8) are respectively upper motion platform (8-1) and lower motion platform (8-2), and two laser displacement sensors (5) are respectively upper laser displacement sensor (5-1) and lower laser displacement sensor (5-2);
Upper arm (4) and underarm (1) are upper and lower parallel and be set up in parallel, side arm (2) and U-shaped slide rail (3-5) all arrange along vertical, one end of upper arm (4) is connected with side arm (2), one end of underarm (1) is connected with the lateral wall of U-shaped slide rail (3-5), on two madial walls of U-shaped slide rail (3-5), be processed with chute, side arm (2) is slidably connected with chute, on one side elevation of side arm (2), along its short transverse, be equidistantly processed with several horizontal teeth (2-1), horizontal teeth (2-1) on side arm (2) and gear (3-3) engagement, gear (3-3) is arranged in the opening of U-shaped slide rail (3-5), gear (3-3) is all rotatably installed on same wheel shaft with the driven rotatable parts (3-2-1) of gear train (3-2), wheel shaft (3-4) is rotationally connected with two madial walls of U-shaped slide rail (3-5), the active rotation parts (3-2-2) of gear train (3-2) are arranged on the output shaft of drive motor (3-1), the lower surface of upper arm (4) is fixed with laser displacement sensor (5-1), the lower surface of underarm (1) is fixed with lower laser displacement sensor (5-2), two laser displacement sensors (5) are oppositely arranged, two bearings (6-3) vertically arrange, on each bearing (6-3), fix a Long arm clamp (6-2), two Long arm clamps (6-2) relatively and be arranged in parallel with upper arm (4), the lower end of each bearing (6-3) is fixed on corresponding one group of roller (6-4), on guide rail (6-1), be provided with along its length gathering sill, two groups of rollers (6-4) are done rolling movement along the gathering sill of guide rail (6-1), guide rail (6-1) and the vertical setting of Long arm clamp (6-2), every group of roller (6-4) is spacing by two position-limit mechanisms (9), two position-limit mechanisms (9) are arranged on guide rail (6-1), the lower end of guide rail (6-1) is fixed on work top (7), the lower end of side arm (2) is fixed in mounting seat (8-1-1), the upper bracket (8-1-2) of upper motion platform (8-1) is fixed in the lower mounting seat (8-2-1) of lower motion platform (8-2), work top (7) is provided with open slot (7-1), lower motion platform (8-2) is arranged in the open slot (7-1) of work top 7,
Upper laser displacement sensor (5-1) and lower laser displacement sensor (5-2) are simultaneously to the upper surface of tested sheet material (10) and the relative position Emission Lasers of lower surface, upper laser displacement sensor (5-1) sends to upper amplifier (12) to the range information of tested sheet material (10) upper surface, the output terminal of upper amplifier (12) is connected with the first input end of A/D converter (13), lower laser displacement sensor (5-2) sends to lower amplifier (14) to the range information of tested sheet material (10) lower surface, the output terminal of lower amplifier (14) is connected with the second input end of A/D converter (13), the output terminal of A/D converter (13) is connected with the first input end of analytic system (15), the movement directive output terminal of upper stepper motor (8-1-5) is connected with the input end of upper driver (15), the output terminal of upper driver (16) is connected with the first input end of D/A converter (17), the movement directive output terminal of lower stepper motor (8-2-5) is connected with the input end of lower driver (18), the output terminal of lower driver (18) is connected with the second input end of D/A converter (17), the output terminal of D/A converter (17) is connected with the input end of control system (19), the output terminal of control system (19) is connected with the second input end of analytic system (15), the output terminal of analytic system (15) is connected with the input end of the display (20) of computing machine, be used for showing tested sheet material (10) thickness of slab distribution situation.
6. the laser measuring device for measuring of sheet material thickness of slab according to claim 5, is characterized in that: described upper motion platform (8-1) comprises mounting seat (8-1-1), upper bracket (8-1-2), upper ball screw (8-1-3), upper coupling (8-1-4) and upper stepper motor (8-1-5);
(8-1-10 is arranged on upper bracket (8-1-2) upper mounting seat, upper mounting seat (8-1-1) is connected with upper ball screw (8-1-3), the rotating shaft of upper stepper motor (8-1-5) is connected with upper ball screw (8-1-3) by upper coupling (8-1-4), by mounting seat (8-1-1) in upper stepper motor (8-1-5) driving, at upper bracket (8-1-2), above slided, described lower motion platform (8-2) comprises lower mounting seat (8-2-1), lower carriage (8-2-2), lower ball screw (8-2-3), lower coupler (8-2-4) and lower stepper motor (8-2-5), upper bracket (8-1-2) is fixed in lower mounting seat (8-2-1), lower mounting seat (8-2-1) is arranged on lower carriage (8-2-2), lower mounting seat (8-2-1) is connected with lower ball screw (8-2-3), the rotating shaft of lower stepper motor (8-2-5) is connected with lower ball screw (8-2-3) by lower coupler (8-2-4), by lower stepper motor (8-2-5), drive lower mounting seat (8-2-1) in the upper slip of lower carriage (8-2-2).
7. according to the laser measuring device for measuring of sheet material thickness of slab described in claim 5 or 6, it is characterized in that: on upper arm (4) and underarm (1), edge length direction is separately provided with scale mark (11) respectively.
8. the laser measuring device for measuring of sheet material thickness of slab according to claim 5, it is characterized in that: each position-limit mechanism (9) comprises locking post (9-1) and pressing plate (9-2), pressing plate (9-2) is provided with mounting hole, the upper end of locking post (9-1) fixedly wears out the mounting hole of pressing plate (9-2), the lower end of locking post (9-1) is placed in the gathering sill of guide rail (6-1), and every group of roller (6-4) is threaded with two locking posts (9-1).
CN201210209401.9A 2012-06-25 2012-06-25 Laser measurement device for thickness of plate CN102706286B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050137829A1 (en) * 2003-12-17 2005-06-23 Siemens Westinghouse Power Corporation System and method for measuring coating thickness
CN201122093Y (en) * 2007-11-01 2008-09-24 比亚迪股份有限公司 Thickness measurement device
CN201791741U (en) * 2010-09-30 2011-04-13 宝山钢铁股份有限公司 Measuring device for detecting transverse thickness distribution of thin-specification plate materials

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050137829A1 (en) * 2003-12-17 2005-06-23 Siemens Westinghouse Power Corporation System and method for measuring coating thickness
CN201122093Y (en) * 2007-11-01 2008-09-24 比亚迪股份有限公司 Thickness measurement device
CN201791741U (en) * 2010-09-30 2011-04-13 宝山钢铁股份有限公司 Measuring device for detecting transverse thickness distribution of thin-specification plate materials

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
激光高精度非接触动态测厚的方法与实现;邱宝梅等;《电子测量与仪器学报》;20070319;第480-483页 *
邱宝梅等.激光高精度非接触动态测厚的方法与实现.《电子测量与仪器学报》.2007,第480-483页.

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