CN101710170A - Automatic test device of electromagnetic switch performance - Google Patents
Automatic test device of electromagnetic switch performance Download PDFInfo
- Publication number
- CN101710170A CN101710170A CN200910250939A CN200910250939A CN101710170A CN 101710170 A CN101710170 A CN 101710170A CN 200910250939 A CN200910250939 A CN 200910250939A CN 200910250939 A CN200910250939 A CN 200910250939A CN 101710170 A CN101710170 A CN 101710170A
- Authority
- CN
- China
- Prior art keywords
- electromagnetic switch
- plc
- tooth
- current
- screw mandrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses an automatic test device of electromagnetic switch performance, which is characterized by comprising a stepping motor, wherein the stepping motor is installed on a base; an output shaft of the stepping motor is fixedly connected with a screw rod; the screw rod is sleeved at one end of a displacement detecting mechanism, and the other end of the displacement detecting mechanism is fixedly connected with one end of a pressure sensor; the other end of the pressure sensor is fixedly connected with a clamping mechanism, the clamping mechanism is provided with an upper clamping tooth and a lower clamping tooth, and the upper clamping tooth is opposite to the lower clamping tooth; the stepping motor, the screw rod, the displacement detecting mechanism and the pressure sensor are positioned on the same axis; the upper clamping tooth and the lower clamping tooth are respectively positioned at the upper side and the lower side of the axis, and an electromagnetic switch positioning mechanism, a wiring seat and a push cylinder are also arranged on the axis approaching the upper clamping tooth and the lower clamping tooth in sequence; and the electromagnetic switch positioning mechanism is fixed on the base, a wiring rod of the wiring seat faces to the electromagnetic switch positioning mechanism, and the wiring seat is fixedly connected with a push rod of the push cylinder. The structure combined with circuit control can realize the automatic complete detection of the performance parameter of an electromagnetic switch.
Description
Technical field
The present invention relates to automobile electromagnetic switching characteristic technical field of measurement and test, a kind of specifically device of automatic test electromagnetic switch combination property.
Background technology
The test of automobile electromagnetic switch performance mainly comprises electromagnetic switch master stroke, additional travel test, and pulling force, confining force test etc. are inhaled in the main contact pressure fall-off test.Wherein, electromagnetic switch master's stroke, additional travel test mainly are to adopt the pattern displacement determination method, mainly be to utilize to connect the solenoid winding rated voltage, move by the electromagnetic switch movable core, write down the position numerical value of pattern displacement, more representational electromagnetic switch master's stroke, the additional travel pattern displacement testing apparatus that Beijing starlight instrument plant is arranged; Direct method of testing is mainly adopted in the main contact pressure fall-off test, utilizes the electromagnetic switch main contacts to apply the size that low-voltage and high-current detects the contact contact drop; Suction pulling force, confining force are tested simple method of testing and are mainly adopted the fixed weight method of testing, inhale the size that the size of drawing electric current and holding current is assessed suction pulling force and confining force with measuring.
These above-mentioned performance test methods can only satisfy the parameter request of auto parts and components manufacturing enterprise to starter relay performance simple test index.At present, each performance testing device all can only detect corresponding parameter, can't satisfy requirements Hyundai Motor industrial technology needs, automatic all parameters of full test of energy.
Summary of the invention
The purpose of this invention is to provide a kind of automatic test device of electromagnetic switch performance, can be automatically, complete detection electromagnetic switch performance parameter index.
For achieving the above object, the present invention explains a kind of automatic test device of electromagnetic switch performance, its key is: include the stepper motor that is installed on the pedestal, the fixedly connected screw mandrel of the output shaft of this stepper motor, this screw mandrel is sleeved on an end of displacement detecting mechanism, an end of the fixedly connected pressure transducer of the other end of displacement detecting mechanism, the fixedly connected clamp system of the other end of this pressure transducer, this clamp system is provided with the folder tooth and presss from both sides tooth down, and the described folder tooth of going up is relative with following folder tooth;
Described stepper motor, screw mandrel, displacement detecting mechanism and pressure transducer are positioned on the same axis; Described go up the folder tooth and down the folder tooth lay respectively at the both sides up and down of axis, near on folder tooth and also be furnished with electromagnetic switch positioning mechanism, junction block, propulsion cylinder successively on the axis of folder tooth down;
Described electromagnetic switch positioning mechanism is fixed on the pedestal, and the A wiring rod of installing on the described junction block, B wiring rod, C wiring rod, D wiring rod are towards electromagnetic switch positioning mechanism, and this junction block is fixedlyed connected with the push rod of propulsion cylinder.
Described electromagnetic switch positioning mechanism is used for placing, fixing tested electromagnetic switch, and described stepper motor is used to drive the screw mandrel rotation, thereby makes the displacement detecting mechanism translation, promotes pressure transducer and moves, and clamp system also moves thereupon.Described displacement detecting mechanism can detect the displacement of translation, and pressure transducer is used for the detected pressures signal, and clamp system is used to vise the drag hook of tested electromagnetic switch.Described propelling cylinder is used to promote junction block to be drawn close to electromagnetic switch positioning mechanism, and the wiring rod of junction block is contacted with tested electromagnetic switch.Described A, B wiring rod are used to connect two main contacts of tested electromagnetic switch, and C, D wiring rod are used to connect two coil leads of tested electromagnetic switch.
The present invention also is provided with PLC, and the Electric Machine Control end of this PLC connects described stepper motor through stepper motor driver;
The displacement signal test side of described PLC is connected with the signal output part of described displacement detecting mechanism;
The pressure signal test side of described PLC is connected with the signal output part of described pressure transducer;
The clamping control end of described PLC is connected with the signal input part of described clamp system;
The propelling control end of described PLC is connected with the signal input part of described propelling cylinder;
The data transmission terminal of described PLC connects the data transmission terminal of computing machine, and the data transmission interface of computing machine is connected with display;
Described PLC also is connected with main contact testing circuit and coil testing circuit.
Described PLC is used to send control signal, the work of control step motor driver, clamp system and propelling cylinder respectively, PLC can also read the output signal of displacement detecting mechanism and pressure transducer, PLC can also carry out exchanges data with computing machine, PLC sends the signal that obtains into computing machine and carries out analyzing and processing, computing machine also can send steering order to PLC, the work of control PLC.Display is used for operation display interface and data message.
Described coil testing circuit includes the adjustable direct supply of little electric current, first contactor, current transducer and first voltage transmitter, the input end of the adjustable direct supply of described little electric current connects the power adjustment end of described PLC, the output cathode of the adjustable direct supply of this little electric current connects described C wiring rod, described current transducer is installed in the wiring of this output cathode and C wiring rod, the output negative pole ground connection of the adjustable direct supply of described little electric current, the signal output part of described current transducer connects the current detecting end of described PLC;
Between the both positive and negative polarity of the adjustable direct supply of described little electric current and connect described first voltage transmitter, the signal output part of described first voltage transmitter connects the voltage detecting end of described PLC;
Ground connection after the coil winding of described first contactor of the first contactor control end string of described PLC, the normally closed switch of described first contactor is serially connected between described D wiring rod and the ground.
Described current transducer be used to the to sample coil current signal of tested electromagnetic switch, and this current signal is uploaded to PLC; Described first voltage transmitter be used to the to sample input voltage of tested electromagnetic switch, and this magnitude of voltage is uploaded to PLC.
Described main contact testing circuit includes high-current dc power supply, load, second voltage transmitter and second contactor, the input end of described high-current dc power supply connects the power control terminal of described PLC, the output cathode of this high-current dc power supply connects described A wiring rod, connects described B wiring rod after the output negative pole serial connection load of high-current dc power supply; Described A, B wiring rod and two contacts of the described PLC test side that puts in place is connected respectively;
Be connected in series the coil winding of described second contactor between the 3rd contactor control end of described PLC and the 24V power supply; First normal open switch of described second contactor is serially connected between the positive input terminal of the described A wiring rod and second voltage transmitter;
Second normal open switch of described second contactor is serially connected between the negative input end of the described B wiring rod and second voltage transmitter;
The output terminal of described second voltage transmitter connects the voltage drop detection end of described PLC.
Described second voltage transmitter electromagnetic switch contact voltage drop signal that is used to sample, and this pressure drop signal is uploaded to PLC, PLC can also read the contact detection signal that puts in place, and described load is used for dividing potential drop, improves the degree of accuracy that detects.
Described displacement detecting mechanism includes sliding seat, this sliding seat is fixedlyed connected with the slide block on being sleeved on described screw mandrel, the main scale of grating displacement sensor also is installed on this sliding seat, the read head of this grating displacement sensor is fixedlyed connected with described pedestal, away from an end of the fixedly connected pressure transducer of sliding seat one side of stepper motor, the described sliding seat of gig is on axis;
The signal output part of described grating displacement sensor is connected with the displacement signal test side of described PLC.
The rotation of screw mandrel drives the sliding seat translation, and the main scale of described grating displacement sensor moves with sliding seat, and pressure transducer also moves thereupon simultaneously.Grating displacement sensor writes down the size of displacement, and this displacement data is sent to PLC.
Described clamp system includes 7 " font decides clamping plate and clamps cylinder; described 7 " font decides the other end of the fixedly connected described pressure transducer of clamping plate riser, should decide the fixedly connected clamping cylinder of transverse slat of clamping plate, the push rod of described clamping cylinder straight down, terminal fixedly connected moving clamping plate at this push rod, press from both sides tooth on described fixing on the lower surface away from the transverse slat end of riser, on the upper surface of described moving clamping plate, fix the described tooth of folder down;
The control end of described clamping cylinder is connected with the clamping control end of described PLC.
PLC makes clamping plate draw close to deciding clamping plate by the work of control clamping cylinder, draws close thereby following folder tooth upwards presss from both sides tooth.The described folder tooth of going up is used to vise the drag hook of tested electromagnetic switch with following folder tooth.
Described electromagnetic switch positioning mechanism is by the electromagnetic switch seat and compress cylinder and form, described electromagnetic switch seat is fixed on the described pedestal, and be positioned on the described axis, the upper surface of this electromagnetic switch seat has groove, end at this groove is provided with baffle plate, have groove on the described baffle plate, this groove is gone up the folder tooth and is pressed from both sides tooth down towards described, and described axis passes this groove;
Be provided with the briquetting of clamping cylinder above described groove, this clamping cylinder is fixedlyed connected with described pedestal; The other end of described groove is towards four wiring rods of described junction block;
The control end of described clamping cylinder is connected with the control end that compresses of described PLC.
Described groove and groove are used to place tested electromagnetic switch, and wherein the main contact of tested electromagnetic switch is placed towards junction block, compress cylinder and are used to push down tested electromagnetic switch.
Described junction block is fixed on the seat of Weihe, and this slide is fixedlyed connected with the push rod of described propulsion cylinder.
Be fixedly connected with the first screw mandrel pillar and the second screw mandrel pillar on described pedestal, have a through hole on the described first screw mandrel pillar and the second screw mandrel pillar, described two through holes are positioned on the axis, and described screw mandrel passes two through holes.
The described first screw mandrel pillar and the second screw mandrel pillar are used for support screw.
Remarkable result of the present invention is: the present invention can detect the spring force of tested electromagnetic switch and master, additional travel, and can draw electromagnetic switch and inhale the tensile properties curve, detect to inhale beginning voltage, inhale and draw electric current and release voltage, coil holding current, can also detect the pressure drop of electromagnetic switch main contact, detected parameters is comprehensive, and all tests adopt dynamo-electric control automatically to finish, automaticity is higher, improved the operating efficiency that detects, reduced the factor of personal error, higher measuring accuracy has been arranged.
Description of drawings
Fig. 1 is mech's assembling structure figure of the present invention;
Fig. 2 is the three-view diagram that electromagnetic switch is placed among Fig. 1;
Fig. 3 is the vertical view at B place among Fig. 1;
Left view when Fig. 4 is placed on the electromagnetic switch positioning mechanism for electromagnetic switch among Fig. 1;
Fig. 5 is electromagnetic switch master stroke and additional travel synoptic diagram;
Fig. 6 is that electromagnetic switch is docked synoptic diagram with junction block;
Fig. 7 connects the control synoptic diagram for PLC;
Fig. 8 is electromagnetic switch input voltage and coil current testing circuit synoptic diagram;
Fig. 9 is an electromagnetic switch main contacts voltage drop detection circuit synoptic diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Embodiment:
As Fig. 1, shown in Figure 6: a kind of automatic test device of electromagnetic switch performance, include the stepper motor 1 that is installed on the pedestal 10, the fixedly connected screw mandrel 2 of the output shaft of this stepper motor 1, this screw mandrel 2 is sleeved on an end of displacement detecting mechanism, one end of the fixedly connected pressure transducer 3 of the other end of displacement detecting mechanism, the fixedly connected clamp system of the other end of this pressure transducer 3, this clamp system are provided with folder tooth 4 and press from both sides tooth 5 down, and the described folder tooth 4 of going up is relative with following folder tooth 5.
Described stepper motor 1, screw mandrel 2, displacement detecting mechanism and pressure transducer 3 are positioned on the same axis a; Described go up folder tooth 4 and down folder tooth 5 lay respectively at the both sides up and down of axis a, near on folder tooth 4 and also be furnished with electromagnetic switch positioning mechanism, junction block 6, propulsion cylinder 7 successively on the axis a of folder tooth 5 down.
Described electromagnetic switch positioning mechanism is fixed on the pedestal 10, and the A wiring rod of installing on the described junction block 6, B wiring rod, C wiring rod, D wiring rod are towards electromagnetic switch positioning mechanism, and this junction block 6 is fixedlyed connected with the push rod of propulsion cylinder 7.
Described electromagnetic switch positioning mechanism is used for placing, fixing tested electromagnetic switch, and described stepper motor 1 is used to drive screw mandrel 2 rotations, thereby makes the displacement detecting mechanism translation, promotes pressure transducer 3 and moves, and clamp system also moves thereupon.Described displacement detecting mechanism can detect the displacement of translation, and pressure transducer is used for the detected pressures signal, and clamp system is used to vise the drag hook 37 of tested electromagnetic switch.Described propelling cylinder 7 is used to promote junction block 6 to be drawn close to electromagnetic switch positioning mechanism, and the wiring rod of junction block 6 is contacted with tested electromagnetic switch.Described A, B wiring rod are used to connect two main contacts 41 of tested electromagnetic switch, and C, D wiring rod are used to connect two coil leads 42 of tested electromagnetic switch.
As shown in Figure 7, the present invention also is provided with PLC20, and the Electric Machine Control end of this PLC20 connects described stepper motor 1 through stepper motor driver 19.
The displacement signal test side of described PLC20 is connected with the signal output part of described displacement detecting mechanism.
The pressure signal test side of described PLC20 is connected with the signal output part of described pressure transducer 3.
The clamping control end of described PLC is connected with the signal input part of described clamp system.
The propelling control end of described PLC20 is connected with the signal input part of described propelling cylinder 7.
The data transmission terminal of described PLC20 connects the data transmission terminal of computing machine 30, and the data transmission interface of computing machine 30 is connected with display 31.
Described PLC20 also is connected with main contact testing circuit 35 and coil testing circuit 36.
Described PLC20 is used to send control signal, the work of control step motor driver 19, clamp system and propelling cylinder 7 respectively, PLC20 can also read the output signal of displacement detecting mechanism and pressure transducer 3, PLC20 can also carry out exchanges data with computing machine 30, PLC20 sends the signal that obtains into computing machine 30 and carries out analyzing and processing, computing machine 30 also can send steering order to PLC20, the work of control PLC20.Display 31 is used for operation display interface and data message.
As shown in Figure 8, described coil testing circuit 36 includes the adjustable direct supply 21 of little electric current, the first contactor KA1, the current transducer 25 and first voltage transmitter 26, the input end of the adjustable direct supply 21 of described little electric current connects the power adjustment end of described PLC20, the output cathode of the adjustable direct supply 21 of this little electric current connects described C wiring rod, described current transducer 25 is installed in the wiring of this output cathode and C wiring rod, the output negative pole ground connection of the adjustable direct supply 21 of described little electric current, the signal output part of described current transducer 25 connects the current detecting end of described PLC20.
Between the both positive and negative polarity of the adjustable direct supply 21 of described little electric current and connect described first voltage transmitter 26, the signal output part of described first voltage transmitter 26 connects the voltage detecting end of described PLC20.
Ground connection after the coil winding of the described first contactor KA1 of the first contactor control end string of described PLC20, the normally closed switch of the described first contactor KA1 is serially connected between described D wiring rod and the ground.
Described current transducer 25 be used to the to sample coil current signal of tested electromagnetic switch, and this current signal is uploaded to PLC20; Described first voltage transmitter 26 be used to the to sample input voltage of tested electromagnetic switch, and this magnitude of voltage is uploaded to PLC20.
As shown in Figure 9, described main contact testing circuit 35 includes high-current dc power supply 22, load 23, second voltage transmitter 27 and the second contactor KA2, the input end of described high-current dc power supply 22 connects the power control terminal of described PLC20, the output cathode of this high-current dc power supply 22 connects described A wiring rod, and output negative pole serial connection load 23 backs of high-current dc power supply 22 connect described B wiring rod; Described A, B wiring rod and two contacts of the described PLC20 test side that puts in place is connected respectively.
Be connected in series the coil winding of the described second contactor KA2 between the 3rd contactor control end of described PLC20 and the 24V power supply; First normal open switch of the described second contactor KA2 is serially connected between the positive input terminal of the described A wiring rod and second voltage transmitter 27.
Second normal open switch of the described second contactor KA2 is serially connected between the negative input end of the described B wiring rod and second voltage transmitter 27.
The output terminal of described second voltage transmitter 27 connects the voltage drop detection end of described PLC20.
The described second voltage transmitter 27 electromagnetic switch contact voltage drop signal that is used to sample, and this pressure drop signal is uploaded to PLC20, PLC20 can also read the contact detection signal that puts in place, and described load 23 is used for dividing potential drop, improves the degree of accuracy that detects.
As Fig. 1, shown in Figure 3, described displacement detecting mechanism includes sliding seat 8, this sliding seat 8 is fixedlyed connected with the slide block 11 on being sleeved on described screw mandrel 2, the main scale 9a of grating displacement sensor 9 also is installed on this sliding seat 8, the read head 9b of this grating displacement sensor 9 is fixedlyed connected with described pedestal 10, away from an end of the fixedly connected pressure transducer 3 of sliding seat 8 one sides of stepper motor 1, described sliding seat 8 is positioned on the axis a.
The signal output part of described grating displacement sensor 9 is connected with the displacement signal test side of described PLC20.
The rotation of screw mandrel 2 drives sliding seat 8 translations, and the main scale 9a of described grating displacement sensor 9 moves with sliding seat 8, and pressure transducer 3 also moves thereupon simultaneously.Grating displacement sensor 9 writes down the size of displacements, and this displacement data is sent to PLC20.
As shown in Figure 1, described clamp system includes 7 " font decides clamping plate 12 and clamps cylinder 13; described 7 " font decides the other end of the fixedly connected described pressure transducer 3 of clamping plate 12 risers, should decide the fixedly connected clamping cylinder 13 of transverse slat of clamping plate 12, the push rod of described clamping cylinder 13 straight down, at the terminal fixedly connected moving clamping plate 14 of this push rod, fix on the lower surface away from the transverse slat end of riser described on folder tooth 4, on the upper surface of described moving clamping plate 14, fix the described tooth 5 of folder down.
The control end of described clamping cylinder 13 is connected with the clamping control end of described PLC.
PLC20 makes clamping plate 14 draw close to deciding clamping plate 12 by the work of control clamping cylinder 13, draws close thereby following folder tooth 5 upwards presss from both sides tooth 4.The described folder tooth 4 of going up is used to vise the drag hook 37 of tested electromagnetic switch 32 with following folder tooth 5.
As shown in Figure 4, described electromagnetic switch positioning mechanism is by electromagnetic switch seat 15 and compress cylinder 16 and form, described electromagnetic switch seat 15 is fixed on the described pedestal 10, and be positioned on the described axis a, the upper surface of this electromagnetic switch seat 15 has groove, is provided with baffle plate at an end of this groove, has groove on the described baffle plate, this groove is gone up folder tooth 4 and is pressed from both sides tooth 5 down towards described, and described axis a passes this groove;
Be provided with the briquetting of clamping cylinder 16 above described groove, this clamping cylinder 16 is fixedlyed connected with described pedestal 10; The other end of described groove is towards four wiring rods of described junction block 6;
The control end of described clamping cylinder 16 is connected with the control end that compresses of described PLC20.
Described groove and groove are used to place tested electromagnetic switch 32, and the main contact 41 of wherein tested electromagnetic switch 32 is placed towards junction block 6, compresses cylinder 16 and is used to push down tested electromagnetic switch 32.
As shown in Figure 1, described junction block 6 is fixed on the slide 17, and this slide 17 is fixedlyed connected with the push rod of described propulsion cylinder 7.
Be fixedly connected with the first screw mandrel pillar 18a and the second screw mandrel pillar 18b on described pedestal 10, have a through hole on the described first screw mandrel pillar 18a and the second screw mandrel pillar 18b, described two through holes are positioned on the axis a, and described screw mandrel 2 passes two through holes.
The described first screw mandrel pillar 18a and the second screw mandrel pillar 18b are used for support screw 2.
Its principle of work is as follows:
The structure of electromagnetic switch master's stroke and additional travel is as shown in Figure 5:
When main stroke L1 refers to that contact contact copper sheet 38 and main contact 41 are in safe open position, the minor increment between them, this stroke is mainly used to satisfy the blow-out requirement.
Additional travel L2 refers to that contact contact copper sheet 38 and main contact 41 connect moment during to the two closed termination, and complete deformation takes place additional travel spring 39, and the displacement of this spring is additional travel L2.Additional travel can guarantee that contact still can guarantee to continue reliable contact after a certain amount of wearing and tearing are arranged.
Pull in winding 34 and holding coil 33 simultaneously when electric, electric current in the coil draws electric current for inhaling, at this moment, produce enough suction magnetic pulls and make electromagnetic switch 32 movable cores 24, comprise electromagnetic switch 32 drag hooks 37, overcome spring force fast to main contact 41 motions, reach the purpose of connecting electromagnetic switch 32 main contacts 41.
After electromagnetic switch 32 main contacts 41 were connected, because the electromagnet magnetic resistance reduces, magnetic force strengthened, for reducing electromagnetic switch 32 coil currents, can disconnect pull in winding 34, need only holding coil 33 independent, to reach the purpose of economize on electricity, the electric current in the coil is a holding current at this moment.
The main contact pressure drop refers to that main contact 41 contacts the resistance drop that produces after copper sheet 38 is connected with the contact, reflected main contact 41 contact abrasion condition parameter indexs.
Testing procedure is as follows:
One, tested electromagnetic switch 32 is put into the groove of electromagnetic switch seat 15, wherein, the main contact 41 of electromagnetic switch 32 is towards junction block 6, as shown in Figure 1 and Figure 2;
Two, the briquetting of PLC20 control clamping cylinder 16 moves down, and makes briquetting push down tested electromagnetic switch 32.
The propulsion cylinder 7 of PLC20 control simultaneously moves forward, and promotes slide 17 and moves to electromagnetic switch seat 15, and junction block 6 moves thereupon, contacts with the main contact 41 and the coil lead 42 of tested electromagnetic switch 32 up to four wiring rods of junction block 6.
PLC20 also controls the work that clamps cylinder 13, and clamping plate 14 are drawn close to decide clamping plate 12, thereby folder tooth 5 upwards presss from both sides tooth 4 and draws close down, on press from both sides tooth 4 and the following tooth 5 that presss from both sides vises the drag hook 37 of tested electromagnetic switch 32.
Three, spring force and main stroke, additional travel parameter detecting:
PLC20 rotates through stepper motor driver 19 control step motors 1, thereby driving screw mandrel 2 rotates, screw mandrel 2 promotes sliding seat 8 and moves to junction block 6 directions, because fixedlying connected of sliding seat 8, pressure transducer 3 and clamping cylinder 13, drive electromagnetic switch 32 movable cores 24, contact contact copper sheet 38, additional travel spring 39 move to main contact 41 directions, when running to contact contact copper sheet 38 and begin to contact, be main stroke L1 from movable core 24 this section stroke at this moment that brings into operation with main contact 41; Contact contact this moment copper sheet 38 no longer continues to move, and stepper motor 1 continues to promote movable core 24 and additional travel spring 39 continues to move, and till movable core 24 diebacks, this section stroke is additional travel L2.Period P LC20 carries out real-time data acquisition to pressure transducer 3 and grating displacement sensor 9, and be uploaded to PLC20, the data that PLC20 will receive are sent to computing machine 30, and the data of 30 pairs of receptions of computing machine are analyzed, and calculate spring force and main stroke, additional travel.Principle is as follows:
The elastic force model of spring
F＝kx+b
Wherein, x represents displacement, and k represents displacement coefficient, and b represents sticky coefficient; Because of being vised with following folder tooth 5 by last folder tooth 4 with pressure transducer 3, electromagnetic switch 32 drag hooks 37 are connected, so spring force equates with pressure transducer 3 pressure, the continuous variation of the pressure signal by detected pressures sensor 3 can be judged the continuous variation of elastic force signal.When jump signal appears in elastic force, jump signal also appears in pressure transducer 3 pressure, show that electromagnetic switch 32 movable cores 24 have run to main contact 41 and contacted the moment that copper sheet 38 begins to contact with the contact, this moment, elastic force was main stroke spring 40 and additional travel spring 39 coefficient elastic force, and promptly the elastic force signal is
F＝F
1+F
2＝k
1x
1+b
1+k
2x
2+b
2
Subscript 1,2 is represented main stroke, additional travel elastic force model respectively, writes down this moment position A1, and the difference that this moment position deducts stepper motor 1 start position A0 equals main stroke L1, i.e. L1=A1-A0.
In like manner can get, when electromagnetic switch 32 runs to the additional travel end, machinery produces hard contact, cataclysm can appear in pressure transducer 3 pressure signals, when PLC20 receives the pressure signal amplitude limit value, PLC20 control step motor 1 is out of service, record final position A2, A2-A1=L2 is additional travel L2, finishes the test job of spring force and main stroke, additional travel thus.
Four, inhale the test of tensile properties curve:
When stepper motor 1 is out of service in the final position, PLC20 controls the adjustable direct supply 21 work output voltages of little electric current, (the change in voltage grade is 1V by eight grades of voltages, range of adjustment is 0-8V) adjusting of boosting, electromagnetic switch 32, PLC20 sampled pressure sensor 3 pressure datas and grating displacement sensor 9 position datas draw the Q of 0 position simultaneously
0-V
0Family curve (Q
0Pulling force, V are inhaled in the output of-representation switch
0-representation switch coil input voltage); Then, PLC20 control step motor 1 paused per step (1mm) to 1 step of junction block 6 reverse directions operation, eight grades of voltage-regulation above repeating, and sampled pressure sensor 3 pressure datas and grating displacement sensor 9 position datas draw the Q of 1 position simultaneously
1-V
1Family curve; And the like, can get 5 positions Q5-V5 family curve data (subscript 0,1 ..., 5 the representative corresponding step put).
Five, the beginning is inhaled voltage, testing current is drawn in suction:
As shown in Figure 8, PLC20 control clamps cylinder 13 and loosens upward folder tooth 4 and folder tooth 5 down, electromagnetic switch 32 drag hooks 37 self-returns, and PLC20 control step motor 1 is got back to start position A0.At this moment, PLC20 controls the adjustable direct supply 21 work output voltages of little electric current, since 0 adjusting of boosting, electromagnetic switch 32, movable core 24 moves to main contact 41 under the effect of inhaling magnetic pull, when the test side that puts in place, the contact of PLC20 detects the contacting signal, be that main contact 41 is when contacting copper sheet 38 contact with the contact, the 32 beginning adhesive actions of expression electromagnetic switch, this moment, the input voltage of electromagnetic switch 32 was the beginning suction voltage of electromagnetic switch 32, the coil current signal of electromagnetic switch 32 is that electric current is drawn in the suction of electromagnetic switch 32, first voltage transmitter 26 and current transducer 25 are sampled respectively, and the beginning is inhaled voltage and electric current is drawn in suction, and be uploaded to PLC20, finish the beginning of electromagnetic switch 32 and inhale voltage, testing current is drawn in suction.
Six, main contact pressure fall-off test:
As shown in Figure 9, the high-current dc power supply 22 of 30V/400A is connected in PLC20 control, and control clamps cylinder 13, make folder tooth 4 and press from both sides tooth 5 down and vise electromagnetic switch 32 drag hooks 37, PLC20 control step motor 1 promotes electromagnetic switch 32 movable cores 24 and moves to junction block 6 directions, when the contact of PLC20 puts the test side in place when detecting the contacting signal, PLC20 controls the second contactor KA2 and gets, first of the second contactor KA2, the second normal open switch closure, voltage signal between second voltage transmitter, 27 sampling main contactss is sent into PLC20, finishes 41 pressure fall-off tests of electromagnetic switch 32 main contacts.After test was finished, PLC20 control disconnected the high-current dc power supply 22 of 30V/400A, and controls the second contactor KA2 dead electricity.
Seven, release voltage, holding current test:
As shown in Figure 8, the 6th the step finish after, electromagnetic switch 32 is in attracting state, and at this moment, PLC20 controls the first contactor KA1 and gets, the normally closed switch of the first contactor KA1 disconnects, pull in winding 34 is disconnected, at this moment, the size of current in the current transducer 25 sampling coils, be holding current, and send into PLC20.PLC20 controls the adjustable direct supply 21 of little electric current and carries out reduction regulation then, electromagnetic switch 32 input voltages slowly reduce, magnetic force slowly reduces, when the contact of PLC20 puts the test side in place when detecting the contact and disconnecting, electromagnetic switch 32 begins release movement at this moment, the input voltage of electromagnetic switch 32 at this moment is the release voltage of electromagnetic switch 32, the coil current signal of electromagnetic switch 32 is the minimum holding current of electromagnetic switch 32, first voltage transmitter 26 and current transducer 25 sample respectively release voltage and minimum holding current, and be uploaded to PLC20, finish the release voltage of electromagnetic switch 32, the holding current test.
Eight, as shown in Figure 7, PLC20 to computing machine 30, analyzes the data upload that receives to the performance of electromagnetic switch 32, make the judgement of tested electromagnetic switch 32 performance acceptance or rejections.
Claims (9)
1. automatic test device of electromagnetic switch performance, it is characterized in that: include the stepper motor (1) that is installed on the pedestal (10), the fixedly connected screw mandrel of output shaft (2) of this stepper motor (1), this screw mandrel (2) is sleeved on an end of displacement detecting mechanism, one end of the fixedly connected pressure transducer of the other end of displacement detecting mechanism (3), the fixedly connected clamp system of the other end of this pressure transducer (3), this clamp system is provided with and presss from both sides tooth (4) and press from both sides tooth (5) down, and the described folder tooth (4) of going up is relative with following folder tooth (5);
Described stepper motor (1), screw mandrel (2), displacement detecting mechanism and pressure transducer (3) are positioned on the same axis (a); Described go up folder tooth (4) and down folder tooth (5) lay respectively at the both sides up and down of axis (a), near on press from both sides on tooth (4) and the following axis (a) that presss from both sides tooth (5) and also be furnished with electromagnetic switch positioning mechanism, junction block (6), propulsion cylinder (7) successively;
Described electromagnetic switch positioning mechanism is fixed on the pedestal (10), and the A wiring rod that described junction block (6) is upward installed, B wiring rod, C wiring rod, D wiring rod are towards electromagnetic switch positioning mechanism, and this junction block (6) is fixedlyed connected with the push rod of propulsion cylinder (7).
2. according to the described automatic test device of electromagnetic switch performance of claim 1, it is characterized in that: also be provided with PLC (20), the Electric Machine Control end of this PLC (20) connects described stepper motor (1) through stepper motor driver (19);
The displacement signal test side of described PLC (20) is connected with the signal output part of described displacement detecting mechanism;
The pressure signal test side of described PLC (20) is connected with the signal output part of described pressure transducer (3);
The clamping control end of described PLC (20) is connected with the signal input part of described clamp system;
The propelling control end of described PLC (20) is connected with the signal input part of described propelling cylinder (7);
The data transmission terminal of described PLC (20) connects the data transmission terminal of computing machine (30), and the data transmission interface of computing machine (30) is connected with display (31);
Described PLC (20) also is connected with main contact testing circuit (35) and coil testing circuit (36).
3. according to the described automatic test device of electromagnetic switch performance of claim 2, it is characterized in that: described coil testing circuit (36) includes the adjustable direct supply of little electric current (21), first contactor (KA1), current transducer (25) and first voltage transmitter (26), the input end of the adjustable direct supply of described little electric current (21) connects the power adjustment end of described PLC (20), the output cathode of the adjustable direct supply of this little electric current (21) connects described C wiring rod, described current transducer (25) is installed in the wiring of this output cathode and C wiring rod, the output negative pole ground connection of the adjustable direct supply of described little electric current (21), the signal output part of described current transducer (25) connects the current detecting end of described PLC (20);
Between the both positive and negative polarity of the adjustable direct supply of described little electric current (21) and connect described first voltage transmitter (26), the signal output part of described first voltage transmitter (26) connects the voltage detecting end of described PLC (20);
Ground connection after the coil winding of described first contact (KA1) of the first contactor control end string of described PLC (20), the normally closed switch of described first contactor (KA1) is serially connected between described D wiring rod and the ground.
4. according to the described automatic test device of electromagnetic switch performance of claim 2, it is characterized in that: described main contact testing circuit (35) includes high-current dc power supply (22), load (23), second voltage transmitter (27) and second contactor (KA2), the input end of described high-current dc power supply (22) connects the power control terminal of described PLC (20), the output cathode of this high-current dc power supply (22) connects described A wiring rod, and output negative pole serial connection load (23) back of high-current dc power supply (22) connects described B wiring rod; Described A, B wiring rod and two contacts of described PLC (20) test side that puts in place is connected respectively;
Be connected in series the coil winding of described second contactor (KA2) between the 3rd contactor control end of described PLC (20) and the 24V power supply; First normal open switch of described second contactor (KA2) is serially connected between the positive input terminal of described A wiring rod and second voltage transmitter (27);
Second normal open switch of described second contactor (KA2) is serially connected between the negative input end of described B wiring rod and second voltage transmitter (27);
The output terminal of described second voltage transmitter (27) connects the voltage drop detection end of described PLC (20).
5. according to the described automatic test device of electromagnetic switch performance of claim 2, it is characterized in that: described displacement detecting mechanism includes sliding seat (8), this sliding seat (8) is fixedlyed connected with the slide block (11) on being sleeved on described screw mandrel (2), the main scale (9a) of grating displacement sensor (9) also is installed on this sliding seat (8), the read head (9b) of this grating displacement sensor (9) is fixedlyed connected with described pedestal (10), away from an end of the sliding seat fixedly connected pressure transducers of (8) one sides (3) of stepper motor (1), described sliding seat (8) is positioned on the axis (a);
The signal output part of described grating displacement sensor (9) is connected with the displacement signal test side of described PLC (20).
6. according to the described automatic test device of electromagnetic switch performance of claim 2, it is characterized in that: described clamp system includes 7 " font decides clamping plate (12) and clamps cylinder (13); described 7 " font decides the other end of clamping plate (12) the fixedly connected described pressure transducers of riser (3), should decide the fixedly connected clamping cylinder of transverse slat (13) of clamping plate (12), the push rod of described clamping cylinder (13) straight down, terminal fixedly connected moving clamping plate (14) at this push rod, press from both sides tooth (4) on described fixing on the lower surface away from the transverse slat end of riser, on the upper surface of described moving clamping plate (14), fix the described tooth (5) of folder down;
The control end of described clamping cylinder (13) is connected with the clamping control end of described PLC (20).
7. according to the described automatic test device of electromagnetic switch performance of claim 2, it is characterized in that: described electromagnetic switch positioning mechanism is by electromagnetic switch seat (15) and compress cylinder (16) and form, described electromagnetic switch seat (15) is fixed on the described pedestal (10), and be positioned on the described axis (a), the upper surface of this electromagnetic switch seat (15) has groove, end at this groove is provided with baffle plate, have groove on the described baffle plate, this groove is gone up folder tooth (4) and is pressed from both sides tooth (5) down towards described, and described axis (a) passes this groove;
Be provided with the briquetting of clamping cylinder (16) above described groove, this clamping cylinder (16) is fixedlyed connected with described pedestal (10); The other end of described groove is towards four wiring rods of described junction block (6);
The control end of described clamping cylinder (16) is connected with the control end that compresses of described PLC (20).
8. according to the described automatic test device of electromagnetic switch performance of claim 1, it is characterized in that: described junction block (6) is fixed on the slide (17), and this slide (17) is fixedlyed connected with the push rod of described propulsion cylinder (7).
9. automatic test device of electromagnetic switch performance according to claim 1, it is characterized in that: on described pedestal (10), be fixedly connected with the first screw mandrel pillar (18a) and the second screw mandrel pillar (18b), have a through hole on the described first screw mandrel pillar (18a) and the second screw mandrel pillar (18b), described two through holes are positioned on the axis (a), and described screw mandrel (2) passes two through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910250939 CN101710170B (en) | 2009-12-21 | 2009-12-21 | Automatic test device of electromagnetic switch performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910250939 CN101710170B (en) | 2009-12-21 | 2009-12-21 | Automatic test device of electromagnetic switch performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101710170A true CN101710170A (en) | 2010-05-19 |
| CN101710170B CN101710170B (en) | 2012-01-04 |
Family
ID=42402966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910250939 Expired - Fee Related CN101710170B (en) | 2009-12-21 | 2009-12-21 | Automatic test device of electromagnetic switch performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101710170B (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411123A (en) * | 2011-07-25 | 2012-04-11 | 温州大学 | Overload property verifying device for breaker |
| CN102661825A (en) * | 2012-04-26 | 2012-09-12 | 武汉理工大学 | Button force test device |
| CN102901592A (en) * | 2012-10-11 | 2013-01-30 | 中国计量学院 | Magnetic latching relay contact pressure detection and movement testing device and use method thereof |
| CN103116129A (en) * | 2013-01-25 | 2013-05-22 | 贵州大学 | Automobile switch testing equipment |
| CN103235551A (en) * | 2013-04-26 | 2013-08-07 | 牧羊有限公司 | Control system for bypassing material guide and control method thereof |
| CN103235257A (en) * | 2013-04-24 | 2013-08-07 | 无锡市朗迪测控技术有限公司 | Starter switch performance testing system |
| CN104075894A (en) * | 2014-07-16 | 2014-10-01 | 南京市计量监督检测院 | Automatic calibrating device and method used for automobile sideslip testing table |
| CN105021158A (en) * | 2015-07-15 | 2015-11-04 | 国家电网公司 | Handcart switch contact insertion depth tester |
| CN106154149A (en) * | 2016-08-08 | 2016-11-23 | 中国计量大学 | The detection of magnetic latching relay contact force and motion test device and using method thereof |
| CN106249137A (en) * | 2016-08-08 | 2016-12-21 | 中国计量大学 | A kind of magnetic latching relay contact force detection method |
| CN107063360A (en) * | 2017-06-20 | 2017-08-18 | 宁波铭富汽车零部件有限公司 | The semi-automatic detection streamline of starter motor electromagnetic switch |
| CN107101675A (en) * | 2017-06-20 | 2017-08-29 | 宁波铭富汽车零部件有限公司 | Starter motor electromagnetic switch detects streamline |
| CN107197621A (en) * | 2017-06-20 | 2017-09-22 | 宁波铭富汽车零部件有限公司 | The automatic detection flow line of starter motor electromagnetic switch |
| CN107192415A (en) * | 2017-06-20 | 2017-09-22 | 宁波铭富汽车零部件有限公司 | Automatic detection flow line |
| CN107238411A (en) * | 2017-06-20 | 2017-10-10 | 宁波铭富汽车零部件有限公司 | A kind of semi-automatic detection streamline |
| CN107270967A (en) * | 2017-06-20 | 2017-10-20 | 宁波奥博汽车电器有限公司 | A kind of automatic detection flow line of starter motor electromagnetic switch |
| CN107270966A (en) * | 2017-06-20 | 2017-10-20 | 宁波奥博汽车电器有限公司 | A kind of semi-automatic detection streamline of starter motor electromagnetic switch |
| CN107284966A (en) * | 2017-06-20 | 2017-10-24 | 宁波铭富汽车零部件有限公司 | A kind of automatic detection flow line |
| CN107314789A (en) * | 2017-06-20 | 2017-11-03 | 宁波铭富汽车零部件有限公司 | Semi-automatic detection streamline |
| CN111174832A (en) * | 2020-02-12 | 2020-05-19 | 深圳市富康实业有限公司 | Method for measuring clearance, separating force and overtravel of relay |
| CN112904109A (en) * | 2021-01-15 | 2021-06-04 | 重庆科技学院 | Electric automobile high-voltage distribution box anti-private opening safety management system and ECU (electronic control unit) detection method |
| CN114413753A (en) * | 2021-12-29 | 2022-04-29 | 德恩科电机（太仓）有限公司 | Brushless motor stator core retention force testing method |
| CN116355216A (en) * | 2023-04-19 | 2023-06-30 | 浙江佳汇新材料有限公司 | Preparation process of low-viscosity methyl silicone oil |
-
2009
- 2009-12-21 CN CN 200910250939 patent/CN101710170B/en not_active Expired - Fee Related
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411123B (en) * | 2011-07-25 | 2013-09-25 | 温州大学 | Overload property verifying device for breaker |
| CN102411123A (en) * | 2011-07-25 | 2012-04-11 | 温州大学 | Overload property verifying device for breaker |
| CN102661825A (en) * | 2012-04-26 | 2012-09-12 | 武汉理工大学 | Button force test device |
| CN102901592A (en) * | 2012-10-11 | 2013-01-30 | 中国计量学院 | Magnetic latching relay contact pressure detection and movement testing device and use method thereof |
| CN103116129A (en) * | 2013-01-25 | 2013-05-22 | 贵州大学 | Automobile switch testing equipment |
| CN103235257A (en) * | 2013-04-24 | 2013-08-07 | 无锡市朗迪测控技术有限公司 | Starter switch performance testing system |
| CN103235257B (en) * | 2013-04-24 | 2015-04-29 | 无锡市朗迪测控技术有限公司 | Starter switch performance testing system |
| CN103235551A (en) * | 2013-04-26 | 2013-08-07 | 牧羊有限公司 | Control system for bypassing material guide and control method thereof |
| CN103235551B (en) * | 2013-04-26 | 2015-07-22 | 牧羊有限公司 | Control system for bypassing material guide and control method thereof |
| CN104075894A (en) * | 2014-07-16 | 2014-10-01 | 南京市计量监督检测院 | Automatic calibrating device and method used for automobile sideslip testing table |
| CN105021158A (en) * | 2015-07-15 | 2015-11-04 | 国家电网公司 | Handcart switch contact insertion depth tester |
| CN106154149A (en) * | 2016-08-08 | 2016-11-23 | 中国计量大学 | The detection of magnetic latching relay contact force and motion test device and using method thereof |
| CN106249137A (en) * | 2016-08-08 | 2016-12-21 | 中国计量大学 | A kind of magnetic latching relay contact force detection method |
| CN107101675A (en) * | 2017-06-20 | 2017-08-29 | 宁波铭富汽车零部件有限公司 | Starter motor electromagnetic switch detects streamline |
| CN107284966A (en) * | 2017-06-20 | 2017-10-24 | 宁波铭富汽车零部件有限公司 | A kind of automatic detection flow line |
| CN107197621A (en) * | 2017-06-20 | 2017-09-22 | 宁波铭富汽车零部件有限公司 | The automatic detection flow line of starter motor electromagnetic switch |
| CN107192415A (en) * | 2017-06-20 | 2017-09-22 | 宁波铭富汽车零部件有限公司 | Automatic detection flow line |
| CN107238411A (en) * | 2017-06-20 | 2017-10-10 | 宁波铭富汽车零部件有限公司 | A kind of semi-automatic detection streamline |
| CN107270967A (en) * | 2017-06-20 | 2017-10-20 | 宁波奥博汽车电器有限公司 | A kind of automatic detection flow line of starter motor electromagnetic switch |
| CN107270966A (en) * | 2017-06-20 | 2017-10-20 | 宁波奥博汽车电器有限公司 | A kind of semi-automatic detection streamline of starter motor electromagnetic switch |
| CN107063360A (en) * | 2017-06-20 | 2017-08-18 | 宁波铭富汽车零部件有限公司 | The semi-automatic detection streamline of starter motor electromagnetic switch |
| CN107314789A (en) * | 2017-06-20 | 2017-11-03 | 宁波铭富汽车零部件有限公司 | Semi-automatic detection streamline |
| CN111174832A (en) * | 2020-02-12 | 2020-05-19 | 深圳市富康实业有限公司 | Method for measuring clearance, separating force and overtravel of relay |
| CN112904109A (en) * | 2021-01-15 | 2021-06-04 | 重庆科技学院 | Electric automobile high-voltage distribution box anti-private opening safety management system and ECU (electronic control unit) detection method |
| CN112904109B (en) * | 2021-01-15 | 2023-08-04 | 重庆科技学院 | Safety management system for preventing high-voltage distribution box of electric automobile from being privately opened and ECU detection method |
| CN114413753A (en) * | 2021-12-29 | 2022-04-29 | 德恩科电机（太仓）有限公司 | Brushless motor stator core retention force testing method |
| CN116355216A (en) * | 2023-04-19 | 2023-06-30 | 浙江佳汇新材料有限公司 | Preparation process of low-viscosity methyl silicone oil |
| CN116355216B (en) * | 2023-04-19 | 2023-09-15 | 浙江佳汇新材料有限公司 | Preparation process of low-viscosity methyl silicone oil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101710170B (en) | 2012-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101710170B (en) | Automatic test device of electromagnetic switch performance | |
| CN204330936U (en) | A kind of lithium ion battery short-circuit test device | |
| CN108731864A (en) | A kind of automatic detection device and method of electric vehicle DC charging rifle contact engaging and separating force | |
| CN106885746B (en) | Wide-frequency response large-stroke experimental device for rubber fatigue performance test | |
| CN102840934B (en) | Change-over switch contact pressure detection equipment | |
| CN202547623U (en) | Detector for axial play of motor | |
| CN107314905B (en) | Simulation actuator of automobile electronic braking system | |
| CN101944804B (en) | Bridging, hooking and trimming device | |
| CN201945291U (en) | Device for measuring open-range and over-travel of contactor | |
| CN111855185B (en) | Model selection device and method for electromagnetic valve spring | |
| CN203720245U (en) | System for automatically measuring counter electromotive force of motor | |
| CN116559648A (en) | GIS isolating switch mechanical state detection method based on driving motor power detection | |
| CN203705553U (en) | Detection apparatus of pantograph slide plate resistor | |
| CN103336178A (en) | A conductor direct current resistance intelligent testing system and a method thereof | |
| CN207570712U (en) | A kind of brake electromagnetism force test device of elevator driving | |
| CN116125114A (en) | Needle bed for electrical property test of circuit board | |
| CN213944696U (en) | Cable dragging device with compensation function | |
| CN108196125A (en) | High-speed electromagnetic valve performance parameter testing device and method | |
| CN202869821U (en) | Bicycle front fork bending fatigue testing machine | |
| CN211348601U (en) | Data line plug testing arrangement | |
| CN211235266U (en) | Device for measuring true stress and true strain of sample | |
| CN202956273U (en) | Pedal force fatigue testing machine of bicycle frame | |
| CN213516624U (en) | Tensile force testing mechanism for welding position of lithium battery tab | |
| CN220040724U (en) | Electromagnet dynamic characteristic testing device | |
| CN202974636U (en) | Tension test device for coupler of electric appliance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20131221 |