CN204631131U - Sheet metal electric conductivity intelligent measuring system - Google Patents

Abstract

The utility model relates to sheet metal electric conductivity intelligent measuring system, it is characterized in that this measuring system comprises probe mechanism, infrared rays survey mechanism, motor control mechanism, external circuit mechanism, Single-chip Controlling mechanism and indication mechanism, described probe mechanism respectively with motor control mechanism, external circuit mechanism is connected, motor control mechanism controls the position of probe mechanism, probe mechanism is vertically fixed on above infrared rays survey mechanism, external circuit mechanism is connected with Single-chip Controlling mechanism, infrared rays survey mechanism is connected with Single-chip Controlling mechanism, motor control mechanism is connected with Single-chip Controlling mechanism, Single-chip Controlling mechanism is connected with indication mechanism again, described infrared rays survey mechanism comprises two infrared receivers, two infrared generators and measuring table, described motor control mechanism comprises 12 motor, main shaft, four fixing locks and four mechanical connection axles.

Description

Sheet metal electric conductivity intelligent measuring system

Technical field

The utility model relates to material electric conductivity field of measuring technique, specifically relates to sheet metal electric conductivity intelligent measuring system.

Background technology

Along with the fast development of China's economic technology, build the continuous progress with manufacturing, society is also constantly improving for the requirement of various material physical properties.The height of materials conductive efficiency is a very important problem manufacturing in industry and the various industry relevant with electricity, and this just proposes new requirement to the choice and application of material.Current measurement sheet metal conductivity main method is all measure material manually, operating process is cumbersome and measuring result error is large, precision is low, and this causes artificial impact with regard to inevitable to measurement result, causes measurement result to vary with each individual.Specialty does not measure the device of sheet metal conductivity now, the application that minority measures conductivity metal device is automatically very not extensive, major part automatic measurement mechanism, such as portable digital eddy current conduc, measurement sheet metal needs to carry out complicated processing to sheet metal and side measurement range is defined as non-ferromagnetic metal.Along with the further application of electricity and universal, society improves constantly the accuracy requirement of material electric conductivity measurement mechanism, and wishes a kind of measuring process automation equipment of design.Therefore urgent demand is had to sheet metal electric conductivity intelligent measurement mechanism.

Utility model content

For the deficiency of existing apparatus, technical problem to be solved in the utility model is to provide a kind of sheet metal electric conductivity intelligent measuring system.This measuring system is controlled by single-chip microcomputer, uses flexibly, and four point probe can be made mobile without dead angle arbitrarily on sheet metal to be measured under the condition of satisfied measurement, and average by multi-times measurement method, improve measuring accuracy, reduce measuring error, realize intelligent Measurement accuracy.

The utility model solve the technical problem adopted technical scheme: provide a kind of sheet metal electric conductivity intelligent measuring system, this measuring system comprises probe mechanism, infrared rays survey mechanism, motor control mechanism, external circuit mechanism, Single-chip Controlling mechanism and indication mechanism, described probe mechanism respectively with motor control mechanism, external circuit mechanism is connected, motor control mechanism controls the position of probe mechanism, probe mechanism is vertically fixed on above infrared rays survey mechanism, external circuit mechanism is connected with Single-chip Controlling mechanism, infrared rays survey mechanism is connected with Single-chip Controlling mechanism, motor control mechanism is connected with Single-chip Controlling mechanism, Single-chip Controlling mechanism is connected with indication mechanism again,

Described infrared rays survey mechanism comprises two infrared receivers, two infrared generators and measuring table; Wherein measuring table has four limits, and infrared receiver and infrared generator mounted in pairs are on four limits of measuring table, and the infrared receiver of mounted in pairs and infrared generator move in the same way with identical speed all the time;

Described probe mechanism comprises four probes, and four probes are vertically fixed on above the measuring table of infrared rays survey mechanism respectively by motor control mechanism, four probes are connected with external circuit mechanism by wire simultaneously respectively;

Described motor control mechanism comprises 12 motor, main shaft, four fixing locks and four mechanical connection axles, and four mechanical connection axles are fixed on main shaft from top to bottom successively by corresponding fixing lock; Each mechanical connection axle includes circular lock, head rod, the first worm and gear, the second worm and gear, the second connecting link and the 3rd connecting link, and described head rod one end is connected with fixing lock; The other end of head rod is connected with the second connecting link by circular lock, by the first worm and gear, the second connecting link is connected with the 3rd connecting link, be connected with probe by 3rd connecting link by the second worm and gear, the first worm and gear, the second worm and gear, the second connecting link and the 3rd connecting link form mechanical connection arm; A motor is all installed, by the switch of Single-chip Controlling mechanism controls phase induction motor by the circle lock of each mechanical connection axle, the first worm and gear and the second worm and gear place;

Described external circuit mechanism comprises voltage source, reometer, slide rheostat, resistor, voltage table and two analog to digital converters; Resistor, reometer, slide rheostat are connected with voltage source, and voltage table is connected with the probe of two wherein, in the circuit of two remaining probe series connection access slide rheostat compositions; An analog to digital converter and capacitor in parallel, convert digital quantity to stored in Single-chip Controlling mechanism in order to be drawn by the magnitude of current; Another analog to digital converter is in parallel with voltage table, is connected with Single-chip Controlling mechanism for converting voltage extraction to digital quantity.

Compared with prior art, the utility model overcomes the shortcoming that error is large and precision is low that existing manual hand manipulation measures, and achieves intelligent automatic measurement, has significant progressive, imbody in the following areas:

(1) the complete Automatic Control in infrared rays survey mechanism detector probe position, infrared receiver and infrared generator simultaneously uniform motion in the same way, during setting in motion, the timer initiation of Single-chip Controlling mechanism, when infrared receiver does not receive infrared signal, Single-chip Controlling mechanism timer stops, and accurately can obtain the position of probe on measuring table thus, measuring accuracy is high.

(2) motor control mechanism makes four probes mobile without dead angle arbitrarily on sheet metal to be measured when measuring condition allows by Motor Control, and whether Single-chip Controlling mechanism can meet measuring condition in detector probe position automatically, reduce error probability, improve measuring accuracy.

(3) indication mechanism adopts charactron intuitively can show the conductivity of sheet metal to be measured.

(4) the utility model not only can measure sheet metal conductivity, and can measure various Free vibration conductor and conductivity semiconductor.

(5) the utility model structure is simple, and test process is convenient, and cost is lower, and components and parts used all can obtain easily, and can not cause any damage to sheet metal in measuring process.

Accompanying drawing explanation

Fig. 1 is the one-piece construction block diagram of the utility model sheet metal electric conductivity intelligent measuring system;

Fig. 2 is the motor control mechanism of the utility model sheet metal electric conductivity intelligent measuring system and the structural representation of infrared rays survey mechanism;

Fig. 3 is the main shaft of the utility model sheet metal electric conductivity intelligent measuring system motor control mechanism, the syndeton schematic diagram of mechanical connection axle;

Fig. 4 is the structural representation of the external circuit mechanism of the utility model sheet metal electric conductivity intelligent measuring system;

In figure, 1-probe mechanism, 2-infrared rays survey mechanism, 3-motor control mechanism, 4-external circuit mechanism, 5-Single-chip Controlling mechanism, 6-indication mechanism, 11-probe, 21-infrared receiver, 22-infrared generator, 23-measuring table, 31-main shaft, the fixing lock of 32-, 33-are mechanically connected axle, 331-circular lock, 332-first worm and gear, 333-second worm and gear, 334-head rod, 335-second connecting link, 336-the 3rd connecting link.

Embodiment

Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.

The utility model sheet metal electric conductivity intelligent measuring system is (hereinafter referred to as measuring system, see Fig. 1) comprise probe mechanism 1, infrared rays survey mechanism 2, motor control mechanism 3, external circuit mechanism 4, Single-chip Controlling mechanism 5 and indication mechanism 6, described probe mechanism 1 respectively with motor control mechanism 3, external circuit mechanism 4 is connected, motor control mechanism 3 controls the position of probe mechanism 1, probe mechanism 1 is vertically fixed on above infrared rays survey mechanism 2, external circuit mechanism 4 is connected with Single-chip Controlling mechanism 5, infrared rays survey mechanism 2 is connected with Single-chip Controlling mechanism 5, motor control mechanism 3 is connected with Single-chip Controlling mechanism 5, Single-chip Controlling mechanism 5 is connected with indication mechanism 6 again,

Described infrared rays survey mechanism 2 comprises two infrared receivers, 21, two infrared generators 22 and measuring table 23; Wherein measuring table 23 has four limits, and infrared receiver 21 and infrared generator 22 mounted in pairs are on four limits of measuring table, and the infrared receiver 21 of mounted in pairs moves with identical speed all the time in the same way with infrared generator 22;

Described probe mechanism 1 comprises four probes, 11, four probes and is vertically fixed on by motor control mechanism 3 above the measuring table of infrared rays survey mechanism 2 respectively, and four probes are connected with external circuit mechanism 4 by wire simultaneously respectively;

Described motor control mechanism 3 is comprised 12 motor (not marking in figure), the fixing lock 32 of 31, four, main shaft and four mechanical connection 33, four, axle mechanical connection axles 33 and is fixed on successively from top to bottom on main shaft 31 by corresponding fixing lock 32; Each mechanical connection axle 33 includes circular lock 331, head rod 334, first worm and gear 332, second worm and gear 333, second connecting link 335 and the 3rd connecting link 336, and described head rod 334 one end is connected with fixing lock 32; The other end of head rod 334 is connected with the second connecting link 335 by circular lock 331, by the first worm and gear 332, second connecting link 335 is connected with the 3rd connecting link 336, be connected with probe 11 by 3rd connecting link 336 by the second worm and gear 333, the first worm and gear 332, second worm and gear 333, second connecting link 335 and the 3rd connecting link 336 form mechanical connection arm; A motor is all installed at circle lock 331, first worm and gear 332 of each mechanical connection axle and the second worm and gear 333 place, is controlled the switch of phase induction motor by Single-chip Controlling mechanism 5;

Described external circuit mechanism comprises voltage source U, reometer, slide rheostat, resistor, voltage table and two analog to digital converters; Resistor, reometer, slide rheostat are connected with voltage source U, and voltage table is connected with the probe of two wherein, in the circuit of two remaining probe series connection access slide rheostat compositions; The capacitor in parallel of an analog to digital converter and external circuit mechanism, converts digital quantity to stored in Single-chip Controlling mechanism in order to be drawn by the magnitude of current; Another analog to digital converter is in parallel with voltage table, is connected with Single-chip Controlling mechanism for converting voltage extraction to digital quantity.

Of the present utility modelly be further characterized in that described indication mechanism 6 adopts charactron.

Specific works flow process and the principle of the utility model sheet metal electric conductivity intelligent measuring system are: sheet metal to be measured is placed on measuring table 23, during measuring system initialization, probe 11 has certain distance apart from sheet metal to be measured, in order to avoid probe 11 moves sliding damage sheet metal.On measuring table 23, two pairs of infrared receivers 21 and infrared generator 22 prepare to run at starting point place.

Infrared generator 22 and the top setting in motion of infrared receiver 21 from measuring table 23 opposite side, when probe not detected, infrared receiver 21 can receive the infrared signal of infrared generator 22, until probe detected, infrared receiver 21 does not receive the infrared signal of infrared generator 22, records by Single-chip Controlling mechanism 5 distance that infrared generator 22 or infrared receiver 21 pass by; Two pairs of infrared receivers 21 and infrared generator 22 continue mobile until the edge of measuring table 23.The other both sides of measuring table are adopted to use the same method and probe 11 position detected, thus the position of position probe 11 on measuring table 23.

Fig. 3 is the syndeton schematic diagram of mechanical connection axle 33 and main shaft 31 and probe 11, the mechanical connection axle 33 chosen in figure on main shaft 31 is example, fixing lock 32 is fixed on main shaft 31 motionless all the time, choose the input end of five I/O ports as Single-chip Controlling mechanism 5, control operation or the stopping of motor in motor control mechanism 3.No. 1 Electric Machine Control first circular lock 331, No. 2 Electric Machine Control first worm and gear 332, No. 3 Electric Machine Control second worm and gears 333, other three probes by that analogy.When being input as 00000, No. 1 motor rotates forward, and the mechanical connection axle 33 of motor control mechanism 3 is with circle lock 331 for the center of circle, and mechanical connection arm rotates clockwise; When input 00001, No. 1 motor reversion, the mechanical connection axle 33 of motor control mechanism 3 is with circle lock 331 for the center of circle, and mechanical connection arm rotates counterclockwise; When input 00010, No. 2 motor rotate forward, and the mechanical connection arm of the mechanical connection axle 33 of motor control mechanism 3 extends mechanical connection arm by the first worm and gear 332; When input 00011, No. 2 motor reversions, the mechanical connection arm of the mechanical connection axle 33 of motor control mechanism 3 shortens mechanical connection arm by the first worm and gear 332; When input 00100, No. 3 motor rotate forward, and the probe 11 of probe mechanism 1 is by the second worm and gear 333 elongate probe length; When input 00101, No. 3 motor reversions, the probe of probe mechanism 1 shortens probe length by the second worm and gear 333; By that analogy, 4-12 motor is the motor on other mechanical connection axles 33, and principle of work is with the mechanical connection axle 33 at 1-3 motor place.Thus four probes 11 can be reached be vertically fixed on state on sheet metal to be measured simultaneously.

First worm and gear 332 and the second worm and gear 333 are for switching motor output terminal sense of rotation, the rotation of motor can be converted to the flexible of the first worm and gear 332 and the second worm and gear 333, thus the first worm and gear 332 and the second worm and gear 333 can be made to realize stretching motion, thus four probes 11 can be moved arbitrarily on sheet metal to be measured.

Fig. 4 is the circuit connection diagram of described external circuit mechanism 4, external circuit mechanism 4 comprises voltage source U, reometer, slide rheostat, resistor, voltage table and two analog to digital converters, probe mechanism 1 comprises four probes, respectively four probes are marked in the diagram, be followed successively by and be respectively probe C, probe F, probe G and probe D; Resistor, reometer, slide rheostat are connected with voltage source U, and voltage table two ends connect respectively to connect with probe F and probe G, probe C and probe D and access in circuit that slide rheostat forms.An analog to digital converter and capacitor in parallel, convert digital quantity to stored in Single-chip Controlling mechanism in order to be drawn by the magnitude of current; Another analog to digital converter is in parallel with voltage table, is connected with Single-chip Controlling mechanism 5 for converting voltage extraction to digital quantity.After switch is closed, voltage source U is loop power supply, and reometer is connected with the external data storage port of Single-chip Controlling mechanism 5 by analog to digital converter, is stored in Single-chip Controlling mechanism 5 by the electric current in loop.Slide rheostat protection circuit, the voltage table between probe F and probe G is connected with the external data storage port of Single-chip Controlling mechanism 5 by analog to digital converter, the potential difference (PD) between probe F and probe G is stored in Single-chip Controlling mechanism 5.Described Single-chip Controlling mechanism 5 should stored in following relation:

$\mathrm{\γ}=\frac{I}{2\mathrm{\π}{U}_{\mathrm{FG}}h}\ln \frac{\left|\mathrm{FD}\right|\left|\mathrm{CG}\right|}{\left|\mathrm{GD}\right|\left|\mathrm{CF}\right|},$

In formula, γ is conductivity, U _fGfor the voltage between probe F and probe G, | FD| is the air line distance between probe F and probe D, | CG| is the air line distance between probe C and probe G, | GD| is the air line distance between probe G and probe D, | CF| is the air line distance between probe C and probe F; H is the thickness of sheet metal; I is the electric current that reometer records;

When each is measured in all stored in Single-chip Controlling mechanism, obtain conductivity according to formulae discovery.Storage unit is contained in Single-chip Controlling mechanism in addition, stored in Logarithmic calculation form, to carry out Logarithmic calculation.

Described Infrared survey mechanism 2 controls corresponding motor to realize mobile by Single-chip Controlling mechanism 5, described infrared rays survey mechanism 2 comprises two infrared receivers, 21, two infrared generators 22 and measuring table 23; Wherein measuring table 23 has four limits, infrared receiver 21 and infrared generator 22 mounted in pairs are on four limits of measuring table, infrared receiver 21 and infrared generator 22 that the right and left of measuring table is installed are first group, and infrared receiver 21 and infrared generator 22 that the both sides, front and back of measuring table are installed are second group; Control second group of infrared generator 22 and infrared receiver 21 movable be the second motor, what control that first group of infrared generator 22 and infrared receiver 21 move left and right is the first motor; Infrared generator 22 and the top setting in motion of infrared receiver 21 from measuring table 23 opposite side, with one side of adjacent main shaft 31 and parallel with this limit while be defined as both sides, front and back on measuring table 23, the another both sides of measuring table 23 are defined as the right and left;

When Single-chip Controlling mechanism 5 inputs 00, the first motor rotates forward, and first group of infrared generator 22 and infrared receiver 21 move from left to right along measuring table; When input 01, the first motor reversal, infrared generator 22 and the infrared receiver 21 of first group move from right to left along measuring table; When input 10, the second motor rotates forward, and second group of infrared generator 22 and infrared receiver 21 move from back to front along measuring table; When input 11, the second motor reversal, second group of infrared generator 22 and infrared receiver 21 move from front to back along measuring table.Infrared generator 22 and infrared receiver 21 are along measuring table uniform motion, when probe 11 not detected, infrared receiver 21 can receive the infrared signal that infrared generator 22 occurs, until when probe being detected, infrared receiver 21 does not receive the infrared signal that infrared generator 22 occurs, now Single-chip Controlling mechanism 5 records the time that infrared generator 22 and infrared receiver 21 move along measuring table, and infrared generator 22 and infrared receiver 21 continue motion.Another organizes same method, just completes the location of probe 11 on sheet metal.When probe 11 is located, probe 11 two is made to be one group of whereabouts, respectively by motor corresponding on the second worm and gear reversion or rotate forward and control the rising of correspondent probe or decline, four location of each probe of probe on sheet metal just can be detected, Single-chip Controlling mechanism 5 will store the position of each probe 11.If on being positioned with impact between probe, on same second worm and gear, corresponding motor reversion or rotating forward control rising or the decline of probe.Utilize the range difference on every direction that Single-chip Controlling mechanism 5 obtains between two between probe, calculated the spacing that can draw probe between two by Pythagorean theorem.

Controlling by Single-chip Controlling mechanism 5 condition that four probes move forward into arbitrarily the conductivity measurement of row metal thin plate on sheet metal to be measured is: the thickness h of sheet metal is not more than the half of the needle gage s between any two probes, and the length of sheet metal and wide this needle gage s more than 10 times.

Embodiment 1

The present embodiment adopts above-mentioned annexation, and wherein Single-chip Controlling mechanism 5 adopts 89C52 single-chip microcomputer, and described indication mechanism 6 adopts charactron, and for showing the conductivity of surveyed sheet metal, described 3rd connecting link 336 is L-type connecting rod.

The utility model is not addressed part and is applicable to prior art.

Claims (2)

1. a sheet metal electric conductivity intelligent measuring system, it is characterized in that this measuring system comprises probe mechanism, infrared rays survey mechanism, motor control mechanism, external circuit mechanism, Single-chip Controlling mechanism and indication mechanism, described probe mechanism respectively with motor control mechanism, external circuit mechanism is connected, motor control mechanism controls the position of probe mechanism, probe mechanism is vertically fixed on above infrared rays survey mechanism, external circuit mechanism is connected with Single-chip Controlling mechanism, infrared rays survey mechanism is connected with Single-chip Controlling mechanism, motor control mechanism is connected with Single-chip Controlling mechanism, Single-chip Controlling mechanism is connected with indication mechanism again,

Described infrared rays survey mechanism comprises two infrared receivers, two infrared generators and measuring table; Wherein measuring table has four limits, and infrared receiver and infrared generator mounted in pairs are on four limits of measuring table, and the infrared receiver of mounted in pairs and infrared generator move in the same way with identical speed all the time;

Described probe mechanism comprises four probes, and four probes are vertically fixed on above the measuring table of infrared rays survey mechanism respectively by motor control mechanism, four probes are connected with external circuit mechanism by wire simultaneously respectively;

Described motor control mechanism comprises 12 motor, main shaft, four fixing locks and four mechanical connection axles, and four mechanical connection axles are fixed on main shaft from top to bottom successively by corresponding fixing lock; Each mechanical connection axle includes circular lock, head rod, the first worm and gear, the second worm and gear, the second connecting link and the 3rd connecting link, and described head rod one end is connected with fixing lock; The other end of head rod is connected with the second connecting link by circular lock, by the first worm and gear, the second connecting link is connected with the 3rd connecting link, be connected with probe by 3rd connecting link by the second worm and gear, the first worm and gear, the second worm and gear, the second connecting link and the 3rd connecting link form mechanical connection arm; A motor is all installed, by the switch of Single-chip Controlling mechanism controls phase induction motor by the circle lock of each mechanical connection axle, the first worm and gear and the second worm and gear place;

Described external circuit mechanism comprises voltage source, reometer, slide rheostat, resistor, voltage table and two analog to digital converters; Resistor, reometer, slide rheostat are connected with voltage source, and voltage table is connected with the probe of two wherein, in the circuit of two remaining probe series connection access slide rheostat compositions; An analog to digital converter and capacitor in parallel, convert digital quantity to stored in Single-chip Controlling mechanism in order to be drawn by the magnitude of current; Another analog to digital converter is in parallel with voltage table, is connected with Single-chip Controlling mechanism for converting voltage extraction to digital quantity.

2. sheet metal electric conductivity intelligent measuring system according to claim 1, is characterized in that described indication mechanism adopts charactron.