CN1423293A - Automatic measurement apparatus of bimetal position of overload release for motor starter - Google Patents
Automatic measurement apparatus of bimetal position of overload release for motor starter Download PDFInfo
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- CN1423293A CN1423293A CN 01139054 CN01139054A CN1423293A CN 1423293 A CN1423293 A CN 1423293A CN 01139054 CN01139054 CN 01139054 CN 01139054 A CN01139054 A CN 01139054A CN 1423293 A CN1423293 A CN 1423293A
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- bimetal
- measurement apparatus
- motor starter
- automatic measurement
- overload release
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Abstract
The device for sensing the bimetal position, the laser micrometer, the constant current source and the control mechanism are setup on the frame of the automatic measuring equipment. The simulated current is applied to the starter through the constant current source. The device for sensing the bimetal position outputs the position signal of the deformed bimetal to the laser micrometer. The measured data through the control mechanism to carry out the calculation processing are converted to the cutting data of the directional length of the guide board. Thus, the laser cutter carries out cutting. There is the one to one correspondence between the position of the guide board after cutting and the bimetal position deformed caused by heating so as to guarantee the synchronism of the bimetal under heating condition.
Description
Technical field
The present invention relates to automatic measurement apparatus of bimetal position of overload release for motor starter.Distortion produced displacement after the bimetal leaf of motor starter and compensating plate were heated, and passed to the overlond trip guide plate, and the directed drive trip gear that moves of dropout guide plate is threaded off, and realizes overload protection and open phase protection to motor.Motor of the present invention plays the device automatic measurement apparatus of bimetal position of overload release and measures the compensating plate of cold conditions automatically and take off and draw position and the bimetal leaf position when hot, and sends measurement result to laser cutting machine the dropout guide plate is cut.
Background technology
As everyone knows, the synchronism of bimetal leaf protects the electrical equipment of motor heating overload function to have great influence to guaranteeing thermal relay or having, and is particularly important for the electrical equipment with phase failure protection function.Tradition guarantees that the method for two golden synchronisms is that cold conditions is directly adjusted two gold or regulated the supports of fixing two gold, but observes the result of debugging by visual or measuring equipment, by debugging repeatedly to reach the synchronism requirement of regulation.Have certain error owing to promote the guide plate of overlond trip itself, this has strengthened the synchronism error of two gold again.In addition, because there is certain error in two gold copper-base alloys itself, the synchronous two gold of cold conditions produce new asynchronous under hot state, and this has improved the difficulty of producing again, and the reliability of product operating characteristics (as overload protection, open phase protection) is difficult to guarantee.
Summary of the invention
The present invention will solve be in the prior art during the two gold of cold conditions debugging initial condition asynchronous, and employing is manual and visual means is debugged, thereby be difficult to guarantee the problem of the hot synchronism of product, a kind of automatic measurement apparatus of bimetal position of overload release for motor starter is provided.Cooperate new technical scheme, the dropout guide plate needs redesign.New guide plate is initially as a whole, join when doing, utilize self-operated measuring unit of the present invention that the position of hot two gold and the dropout position of compensating plate are measured automatically, and send measurement result to laser cutting machine, the guide plate after the cutting links into an integrated entity with metal again.
The technical scheme that addresses the above problem is: automatic measurement apparatus of bimetal position of overload release for motor starter, comprise frame, and it is characterized in that also being provided with on the described frame:
---be used to the bimetal position sensing mechanism following the tracks of bimetal position and automatically revert to initial condition;
---be used for that the displacement signal of bimetal position sensing mechanism output and compensating plate dropout position be converted into the signal of telecommunication and be input to the laser micrometer of controlling organization;
---be used to supply with the constant-current source of motor starter analog operation electric current;
And one by the controlling organization of signal being collected, described bimetal position sensing mechanism, laser micrometer and constant-current source are controlled in computing, processing and output.
Automatic measurement apparatus of bimetal position of overload release for motor starter of the present invention, heating current and operating time under the simulation normal operating conditions, adopt the method for equivalence, by constant-current source to the starter electric current that to apply a numerical value be the setting current multiple, heating reaches official hour, the bimetal position sensing mechanism is followed the tracks of bimetal position, and this position signalling exported from output, position after the two gold distortion of laser micrometer meter record, carry out computing by controlling organization, measurement data is converted into the directed long cutting data of guide plate, cuts by laser cutting machine.Guide plate position after the cutting with add thermal deformation after the positions of two gold corresponding one by one, thereby guarantee following pair of golden synchronism of febrile state.Owing to allow the initial condition of two gold asynchronous, the quality of easier assurance product.
The described bimetal position sensing mechanism of this structure comprises one group of pointer that is used to respond to bimetal position, make pointer one end to the goring push spring of two golden closings with make pointer be returned to the playback catch of the initial condition position that breaks away from two metallographics, described playback catch and the cylinder interlock of being controlled by controlling organization, described pointer quantity is corresponding with described pair of golden number amount.Described pointer is arranged on the described frame by rotating shaft, and an end is corresponding with described pair of gold plaque, and described goring push spring and described playback catch are separately positioned on the middle part and the other end of described pointer.Described goring push spring is adjustable.This adjustable goring push spring structure can realize like this: described goring push spring is arranged in the hollow stud, and the top of described hollow stud is provided with a stopper head that leans on described pointer.
This structure also is provided with on the described frame and is used to stir compensating plate to the position of threading off and the shifting fork mechanism that resets, and described shifting fork mechanism links to each other with described controlling organization.Described shifting fork mechanism is stirred the temperature-compensating sheet to the position of threading off, record the temperature sticking patch in the position of threading off moment by the laser micrometer meter, carry out computing by controlling organization, measurement data is converted into the directed long cutting data of guide plate, cut by laser cutting machine.Described shifting fork mechanism comprise the stepping motor that links to each other with controlling organization, transmission with leading screw-screw, the back shift fork that is used to spur the preceding shift fork of temperature-compensating sheet and is used for laser measurement, described leading screw links to each other with described stepping motor by coupling, and described preceding shift fork and back shift fork are connected on the described screw by gusset piece.Described shifting fork mechanism one side also is provided with and is used for the transducer that zero-bit detects, and shift fork interfered before the assurance workpiece was got along well in the material loading installation process.Also be provided with a travel switch that is used for device protection in the same side of shifting fork mechanism; the front end of described travel switch is provided with collision block; after travel switch is triggered by collision block; mechanism's stop motion; show that there are quality problems in workpiece; alarm signals such as acousto-optic can be set, the request manual intervention by controlling organization.Extreme position in described screw motion also is provided with the dead block that is used for device protection.
Description of drawings
The invention will be further described below in conjunction with embodiment and accompanying drawing.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of bimetal position sensing mechanism of the present invention.
Fig. 3 is the structural representation of shifting fork mechanism of the present invention.
Fig. 4 is bimetal position sensing mechanism of the present invention and the rack-mounted structural representation of shifting fork mechanism.
Fig. 5 is a control block diagram of the present invention.
Fig. 6 is a working timing figure of the present invention.
Embodiment
With reference to accompanying drawing, automatic measurement apparatus of bimetal position of overload release for motor starter, frame 5 is provided with bimetal position sensing mechanism 4, shifting fork mechanism 3, laser micrometer 7, constant-current source 2 and controlling organization 1, bimetal position sensing mechanism 4 comprises one group of pointer 9 that is used to respond to bimetal position, make pointer 9 one ends to the goring push spring 12 of two golden 20 closings with make pointer 9 be returned to playback catch 18 with two gold 20 initial condition positions that are separated, the number of pointer 9 is identical with the number of poles of tested starter, be three in the present embodiment, it is corresponding one by one with the head of described two gold 20 that one end of each pointer is provided with pointer contact 8, the middle part is provided with adjustable goring push spring, the other end is provided with playback catch 18, the structure of this adjustable goring push spring is: described goring push spring 12 is arranged in the hollow stud 13, the top of described hollow stud 13 is provided with a stopper head 11 that leans on described pointer 9, described hollow stud 13 is arranged on the support 15, terminal fixing with support 15 by thin nut 14, described support 15 is fixed on the base 16.The tension force of spring 12 is delivered on the described pointer 9 by stopper head 11, regulates the size of hollow stud 13 adjustable springs 20 tension force, and this tension force guarantees that pointer 9 nestles lightly on two golden 20, but can not be excessive, in order to avoid the normal side-play amount of the two gold 20 of influence.Described playback catch 18 is driven by cylinder 17, revert to initial condition at the measurement moving pointer 9 of post-tensioning that finishes, and guarantees that workpiece 36 pointer 9 of getting along well in the material loading installation process interferes.This cylinder 7 is connected on the controlling organization 1, by the command job of controlling organization 1 with give up the throne.Described pointer 9 is installed on the base 16 by rotating shaft 10 separately, base 16 is fixed on the described frame 5, pointer 9 can 10 rotate around the shaft like this, and two position signallings of golden 20 are transferred to other end output from an end, and 19 ones relative with bimetal position on the pointer of the other ends are the laser measurement position.
Described shifting fork mechanism 3 comprises a base 33 that is arranged on the described frame 5, on described base 33, be provided with the stepping motor 23 that links to each other with controlling organization 1, transmission with leading screw 26, screw 24, the back shift fork 31 that is used to spur the preceding shift fork 28 of temperature-compensating sheet and is used for laser measurement, described leading screw 26 links to each other with described stepping motor 23 by coupling 32, and described preceding shift fork 28 and back shift fork 31 are connected on described screw mandrel-screw assembly by gusset piece 27.When receiving the order of being sent by controlling organization 1, stepping motor 23 begins to rotate, to rotatablely move by leading screw-screw member and to be converted into the motion of straight line, drive gusset piece 27 along line slideway 37 to left movement, top 29 pulling temperature-compensating sheet to starters by preceding shift fork 28 are threaded off, and are measured the position of dropout instantaneous temperature compensating plate at 30 places, top of back shift fork 31 by laser micrometer 7.Described shifting fork mechanism 3 left sides also are provided with and are used for sensor block 21 and the transducer 22 that zero-bit detects, and shift fork 28 interfered before assurance workpiece 36 was got along well in the material loading installation process.Also be provided with a travel switch 34 that is used for device protection in the same side of shifting fork mechanism 3; the front end of described travel switch 34 is provided with collision block 35; after travel switch 34 is triggered by collision block 35; mechanism's stop motion; show that there are quality problems in workpiece 36; alarm signals such as acousto-optic can be set, the request manual intervention by controlling organization 1.Extreme position in described screw 24 motions also is provided with the dead block 25 that is used for device protection.
Shifting fork mechanism 3 and bimetal position sensing mechanism 4 divide in diagram and are located at the left and right of frame 5, make it corresponding to same station, need not move workpiece and can measure the positions of two gold and temperature-compensating sheet simultaneously in the thread off position of moment of starter.On follow-up station, laser cutting machine 6 can also be set, measurement data is converted into the directed long cutting data of guide plate, cut by laser cutting machine 6.
Controlling organization 1 can adopt computer or PLC Programmable Logic Controller, and constant-current source 2 and laser micrometer 7 all adopt existing standard structure,
The course of work of automatic measurement apparatus of bimetal position of overload release for motor starter of the present invention is:
1, workpiece is installed and energising
Measured workpiece 36 is installed on the measurement station, and energized makes two gold 20 energising heating, by constant-current source 2 supply analog operation electric currents;
2, measure the distortion of two gold
Two golden 20 be heated back distortion were started working by the time that bimetal position sensing mechanism 4 is set according to controlling organization, and cylinder 17 is given up the throne, and pointer 9 is close to two gold plaques 20 under the effect of spring force, and rotates thereupon, is measured the positions of two gold 20 by laser micrometer 7; Cylinder 17 motions then, pulling pointer 9 overcomes the spring force playback;
3, measure the position of temperature-compensating sheet
The time that shifting fork mechanism 3 is set according to controlling organization 1 starts working, stepping motor 23 runnings, to rotatablely move by leading screw-screw member and to be converted into the propelling of straight line, and by gusset piece 27 pass to before shift fork 28, end 29 pulling temperature-compensating sheet to workpiece by preceding shift fork 28 are threaded off, and are measured the position of dropout instantaneous temperature compensating plate at 30 places, shift fork 31 ends, back by laser micrometer 7.
4, laser cutting
The material loading of workpiece 36 and the conversion between the station can be carried out by hand, also can realize by controlling organization control by manipulator and conveyer belt, for example: measured workpiece is placed on the conveyer belt, when being transported to the measurement station, by position transducer detected signal is passed to controlling organization, send fill order by controlling organization, manipulator is put into this workpiece on the station after conveyer belt grasps after receiving this fill order.After measurement finished, manipulator was put back into this measured workpiece on the conveyer belt again, when being sent to next station by conveyer belt, finished the material loading action by manipulator again.For cooperating the needs of automated production, employing adds electrical mechanisms workpiece is powered up automatically.This structure can be used on the automatic assembly line, is fit to large-scale production, can enhance productivity.
When the present invention was applied in the production of middle and small scale, the transposition between the above-mentioned workpiece station also can be adopted pneumatic circuit, i.e. motion by the controlling organization control cylinder realizes.
The present invention is equally applicable to the cold conditions of two gold and measures.
Claims (13)
1, automatic measurement apparatus of bimetal position of overload release for motor starter comprises frame (5), it is characterized in that also being provided with on the described frame (5):
---be used to the bimetal position sensing mechanism (4) following the tracks of bimetal position and automatically revert to initial condition;
---be used for that the displacement signal of bimetal position sensing mechanism output and compensating plate dropout position be converted into the signal of telecommunication and be input to the laser micrometer (7) of controlling organization;
---be used to supply with the constant-current source (2) of motor starter analog operation electric current; And one by the controlling organization of signal being collected, described bimetal position sensing mechanism (4), laser micrometer (7) and constant-current source (2) are controlled in computing, processing and output (1).
2, automatic measurement apparatus of bimetal position of overload release for motor starter as claimed in claim 1, it is characterized in that described bimetal position sensing mechanism (4) comprises one group of pointer (9) that is used to respond to bimetal position, makes pointer (9) one ends to the goring push spring (112) of two gold (20) closing with make pointer (9) be returned to the playback catch (18) of the initial condition position that is separated with two gold (20), described playback retaining (18) sheet and the cylinder interlock of being controlled by controlling organization (1), described pointer (9) quantity is corresponding with described two gold (20) quantity.
3, automatic measurement apparatus of bimetal position of overload release for motor starter as claimed in claim 2, it is characterized in that described pointer (9) is arranged on the described frame (5) by rotating shaft (10), one end is corresponding with described pair of gold plaque (20), and described goring push spring (12) and described playback catch (18) are separately positioned on the middle part and the other end of described pointer (20).
4, automatic measurement apparatus of bimetal position of overload release for motor starter as claimed in claim 3 is characterized in that described pushing tow bullet (12) is adjustable.
5, automatic measurement apparatus of bimetal position of overload release for motor starter as claimed in claim 4, it is characterized in that described goring push spring (12) is arranged in the hollow stud (13), the top of described hollow stud (13) is provided with a stopper head (11) that leans on described pointer (9).
6, the automatic measurement apparatus of bimetal position of overload release for motor starter of stating as claim 1, it is characterized in that also being provided with on the described frame (5) and be used to stir compensating plate to the position of threading off and the shifting fork mechanism that resets (3), described shifting fork mechanism (3) links to each other with described controlling organization (1).
7, the automatic measurement apparatus of bimetal position of overload release for motor starter of stating as claim 6, it is characterized in that described shifting fork mechanism (3) comprise the stepping motor (23) that links to each other with controlling organization (1), transmission with leading screw-screw, the back shift fork (31) that is used to spur the preceding shift fork (28) of temperature-compensating sheet and is used for laser measurement, described leading screw-screw mechanism links to each other with described stepping motor (23) by coupling (32), and described preceding shift fork (28) and back shift fork (31) are connected in described leading screw-screw mechanism by gusset piece (27).
8, the automatic measurement apparatus of bimetal position of overload release for motor starter of stating as claim 7 is characterized in that described shifting fork mechanism (28) one sides also are provided with the transducer (22) that is used for the zero-bit detection.
9, the automatic measurement apparatus of bimetal position of overload release for motor starter of stating as claim 8; the same side that it is characterized in that described shifting fork mechanism (3) also is provided with a travel switch (34) that is used for device protection, and the front end of described travel switch (34) is provided with collision block (35).
10, the automatic measurement apparatus of bimetal position of overload release for motor starter of stating as claim 9 is characterized in that also being provided with the dead block (25) that is used for device protection in the extreme position of described screw motion.
11, the automatic measurement apparatus of bimetal position of overload release for motor starter of stating as claim 10 is characterized in that described shifting fork mechanism (3) and described bimetal position sensing mechanism (4) are corresponding to same station.
12,, it is characterized in that described controlling organization adopts the PLC Programmable Logic Controller as any one described automatic measurement apparatus of bimetal position of overload release for motor starter of claim 1～11.
13, automatic measurement apparatus of bimetal position of overload release for motor starter as claimed in claim 12, it is characterized in that also being provided with and be used for laser cutting machine (6) that the dropout guide plate is cut, described laser cutting machine (6) links to each other with described controlling organization (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01139054 CN1227696C (en) | 2001-12-03 | 2001-12-03 | Automatic measurement apparatus of bimetal position of overload release for motor starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01139054 CN1227696C (en) | 2001-12-03 | 2001-12-03 | Automatic measurement apparatus of bimetal position of overload release for motor starter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1423293A true CN1423293A (en) | 2003-06-11 |
| CN1227696C CN1227696C (en) | 2005-11-16 |
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ID=4674985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01139054 Expired - Lifetime CN1227696C (en) | 2001-12-03 | 2001-12-03 | Automatic measurement apparatus of bimetal position of overload release for motor starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1227696C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350272B (en) * | 2008-08-27 | 2010-11-10 | 常熟市天银机电有限公司 | Apparatus for automatically mounting and outputting bimetallic strip of electric motor protector |
| CN102969206A (en) * | 2012-11-13 | 2013-03-13 | 德力西电气有限公司 | Debugging method and debugging device for tripping action consistency of motor protector |
| CN103512520A (en) * | 2012-06-15 | 2014-01-15 | 苏州工业园区高登威科技有限公司 | Thermorelay's bimetallic strip detector |
-
2001
- 2001-12-03 CN CN 01139054 patent/CN1227696C/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350272B (en) * | 2008-08-27 | 2010-11-10 | 常熟市天银机电有限公司 | Apparatus for automatically mounting and outputting bimetallic strip of electric motor protector |
| CN103512520A (en) * | 2012-06-15 | 2014-01-15 | 苏州工业园区高登威科技有限公司 | Thermorelay's bimetallic strip detector |
| CN102969206A (en) * | 2012-11-13 | 2013-03-13 | 德力西电气有限公司 | Debugging method and debugging device for tripping action consistency of motor protector |
| CN102969206B (en) * | 2012-11-13 | 2014-10-29 | 德力西电气有限公司 | Debugging method and debugging device for tripping action consistency of motor protector |
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| Publication number | Publication date |
|---|---|
| CN1227696C (en) | 2005-11-16 |
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Granted publication date: 20051116 |