CN103529383B - Automatic testing equipment - Google Patents
Automatic testing equipment Download PDFInfo
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- CN103529383B CN103529383B CN201310459481.8A CN201310459481A CN103529383B CN 103529383 B CN103529383 B CN 103529383B CN 201310459481 A CN201310459481 A CN 201310459481A CN 103529383 B CN103529383 B CN 103529383B
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- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 239000000523 sample Substances 0.000 claims abstract description 42
- 238000001514 detection method Methods 0.000 claims description 46
- 239000000853 adhesive Substances 0.000 claims description 18
- 230000001070 adhesive effect Effects 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000007667 floating Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 description 18
- 239000000463 material Substances 0.000 description 6
- 238000007664 blowing Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
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- Specific Conveyance Elements (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A kind of automatic testing equipment.Mainly solve existing A.C. contactor and adopt manual testing when detecting, have that labour intensity is large, inefficiency and the large problem of error.It is characterized in that: frame (1) is provided with feeding station successively along the approach axis of workpiece, at least one detects station and discharge station, detect station and be provided with automatic fixture (3), detector probe group (5) is fixed on linear reciprocation device (6) and goes up and drive itself and A.C. contactor (4) to switch on and off by linear reciprocation device (6); Mechanical arm (7) is driven by lifting reciprocating linear device and horizontal reciprocating linear device, and mechanical arm (7) holding workpiece can move to adjacent next station from a station.This automatic testing equipment adopts mechanical arm automatic capturing workpiece, realizes each parameter and automatically detects successively at multistation, have the advantages that work efficiency is high and error is little.
Description
Automatic testing equipment
the present invention is application number: 201210050016.4, and the applying date is on February 29th, 2012, and denomination of invention is the divisional application of " alternating current contactor automation test equipment ".
Technical field
The present invention relates to a kind of A.C. contactor parameter detection device, be specifically related to a kind of alternating current contactor automation test equipment.
Background technology
Contactor is a kind of application Automated condtrol electrical equipment widely, is mainly used in frequent connection or the AC and DC circuit of disjunction, has control capability large, can the advantage such as remote-controlled operation.Coordinate relay can realize fixed cycle operator, interlocked control, various fixing quantity and the function such as decompression and under-voltage protection, be widely used in automatic control circuit.The project that must strictly detect when A.C. contactor dispatches from the factory has whether break-make qualified, coil voltage-withstand test, power consumption parameter, the adhesive parameter that leans forward whether qualified (leaning forward 5 °), hypsokinesis adhesive parameter whether qualified (hypsokinesis 5 °), clearance between open contacts and excess of stroke parameter whether qualified.Above-mentioned parameter is very large to A.C. contactor quality influence, and in production, custom adopts manual testing in the past, has that labour intensity is large, inefficiency and a large defect of error.
Summary of the invention
Manual testing is adopted when detecting in order to solve existing A.C. contactor, have that labour intensity is large, inefficiency and the large problem of error, the invention provides a kind of alternating current contactor automation test equipment, this alternating current contactor automation test equipment adopts mechanical arm automatic capturing workpiece, realize each parameter automatically to detect successively at multistation, have the advantages that work efficiency is high and error is little.
Technical scheme of the present invention is: a kind of automatic testing equipment comprises frame and belt conveyor, approach axis along workpiece in frame is provided with feeding station successively, at least one detects station and discharge station, distance between adjacent stations is equal, detect station and be provided with automatic fixture, the side of automatic fixture is provided with the detector probe group corresponding with each terminals of A.C. contactor, one group of detector probe group is electrically connected with corresponding parameter detection device, detector probe group to be fixed on linear reciprocation device and to drive itself and A.C. contactor to switch on and off by linear reciprocation device, the top of automatic fixture is at least provided with two mechanical arms, distance between adjacent machine hand is equal with the distance between adjacent stations, mechanical arm is by being elevated reciprocating linear device and the driving of horizontal reciprocating linear device, and mechanical arm holding workpiece can move to adjacent next station from a station.
Described parameter detection device is divided into detection on off test device, coil pressure resistant testing device, power consumption parameter proving installation, the adhesive parameter test device that leans forward, hypsokinesis adhesive parameter test device, clearance between open contacts and excess of stroke parameter test device six kinds.
Described detection station be one, two, three, four, five or six and respectively corresponding be equipped with in parameter detection device a kind of, six kinds or any two, three, four, the combination of five kind.
Described detection station is six, and namely first detects station, the second detection station, the 3rd detects station, the 4th detection station, the 5th detects station and the 6th and detects station, and automatic fixture is made up of the dynamic clamping plate of holder and air cylinder driven;
First detect station magnetic test coil and each contact break-make whether qualified;
Whether the second detection station magnetic test coil is withstand voltage qualified, and the automatic fixture on this detection station is provided with copper coin with the opposite side of detector probe group, and copper coin also can be fitted with the mounting groove of A.C. contactor by air cylinder driven;
3rd detects station magnetic test coil power consumption parameter whether lattice;
Whether 4th to detect the A.C. contactor adhesive parameter that leans forward qualified if detecting station, the automatic fixture on this detection station is provided with the cylinder that automatic fixture is leaned forward;
Whether the 5th detection station detects A.C. contactor hypsokinesis adhesive parameter qualified, and the automatic fixture on this detection station is provided with the cylinder making automatic fixture hypsokinesis;
6th detect station detection contact open distance and excess of stroke parameter whether qualified time, detector probe group is fixed on linear reciprocation device, the installing plate of linear reciprocation device is driven by servomotor and ball-screw, is wherein also provided with to stretch into A.C. contactor and to float the middle probe of indication piece.
Described mechanical arm is 7 and is equidistantly fixed on web joint, the top of web joint is connected with the piston rod of lift cylinder, lift cylinder is fixed on slide plate, slide plate is arranged on the slide block of line slideway, and left and right linear slide can be realized by the slip between slide block and line slideway, slide plate is provided with guide holder, and web joint is fixed with guidepost, described guidepost, through the guide holder on slide plate, frame is fixed with the feeding cylinder driving slide plate horizontal reciprocating to slide.
Described detector probe group is fixed on side plate, and side plate is connected with the piston rod of cylinder.
The clamping plate composition that described mechanical arm parallels primarily of two, two clamping plate are synchronously closed up by air cylinder driven and separate; The equal synchronization action of multiple mechanical arm.
Described feeding station place is provided with feeding turnover mechanism, feeding turnover mechanism forms primarily of lift cylinder, Connection Block and rollover stand, rollover stand is made up of base plate and dihedral side plate, dihedral side plate is corresponding with belt conveyor, side and the Connection Block of rollover stand are hinged, rollover stand is fixed with position limit arm, and frame is provided with the push rod corresponding with position limit arm; Rollover stand has two duties, one is that before upset, the base plate of rollover stand and belt conveyor are positioned at same plane, A.C. contactor can be delivered on rollover stand by belt conveyor, two is that after upset, rollover stand overturns 90 °, now base plate erects, and dihedral side plate level is also in same straight line sustained height with each automatic fixture detected on station in frame; Discharge station place is provided with blanking turnover mechanism, and blanking turnover mechanism is identical with feeding turnover mechanism structure, and during work, action is contrary.
Described belt conveyor and the contact jaw of feeding turnover mechanism are provided with positioning cylinder.
Described belt conveyor is provided with the blowing tube communicated with pressure air, and blowing tube is above A.C. contactor.
The present invention has following beneficial effect: owing to taking such scheme, in use, adopts mechanical arm automatic capturing workpiece, realizes each parameter and automatically detect successively at multistation, have the advantages that work efficiency is high and error is little.The optimum configurations of product can be arranged on touch-screen or industrial computer, and this equipment is not only applicable to A.C. contactor product, is also applicable to the similar detection operation of other products.
Accompanying drawing explanation
Accompanying drawing 1 is perspective view of the present invention.
Accompanying drawing 2 is structural representations of automatic fixture 3 in Fig. 1.
Accompanying drawing 3 is mounting structure schematic diagram of mechanical arm 7 in Fig. 1.
Accompanying drawing 4 is structural representations of feeding turnover mechanism 11 in Fig. 1.
Accompanying drawing 5 is mounting structure schematic diagram of detector probe group 5 in Fig. 1.
1-frame in figure, 2-belt conveyor, 3-automatic fixture, 31-holder, 32-moves clamping plate, 33-copper coin, 4-A.C. contactor, 5-detector probe group, 6-linear reciprocation device, 61-side plate, 7-mechanical arm, 71-web joint, 72-lift cylinder, 73-slide plate, 73A-slide block, 74B-line slideway, 74-guide holder, 75-guidepost, 76-feeding cylinder, 8-servomotor, 9-ball-screw, probe in the middle of 10-, 11-feeding turnover mechanism, 111-material loading lift cylinder, 112-Connection Block, 113-rollover stand, 1131-base plate, 1132-dihedral side plate, 114-position limit arm, 115-push rod, 12-blanking turnover mechanism, 13-positioning cylinder.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
Shown in Fig. 1 composition graphs 2-Fig. 5, a kind of automatic testing equipment comprises frame 1 and belt conveyor 2, approach axis along workpiece in frame 1 is provided with feeding station successively, at least one detects station and discharge station, distance between adjacent stations is equal, detect station and be provided with automatic fixture 3, the side of automatic fixture 3 is provided with the detector probe group 5 corresponding with each terminals of A.C. contactor 4, one group of detector probe group 5 is electrically connected with corresponding parameter detection device, detector probe group 5 to be fixed on linear reciprocation device 6 and to drive itself and A.C. contactor 4 to switch on and off by linear reciprocation device 6, the top of automatic fixture 3 is at least provided with two mechanical arms 7, distance between adjacent machine hand 7 is equal with the distance between adjacent stations, mechanical arm 7 is driven by lifting reciprocating linear device and horizontal reciprocating linear device, lifting reciprocating linear device and horizontal reciprocating linear device adopt cylinder, i.e. lift cylinder 72 and feeding cylinder 76, mechanical arm 7 holding workpiece can move to adjacent next station from a station.The present invention adopts mechanical arm 7 automatic capturing workpiece, realizes each parameter and automatically detects successively at multistation, have the advantages that work efficiency is high and error is little.The optimum configurations of product can be arranged on touch-screen or industrial computer, and this equipment is not only applicable to A.C. contactor product, is also applicable to the similar detection operation of other products.
Described parameter detection device is divided into detection on off test device, coil pressure resistant testing device, power consumption parameter proving installation, the adhesive parameter test device that leans forward, hypsokinesis adhesive parameter test device, clearance between open contacts and excess of stroke parameter test device six kinds.Above-mentioned parameter pick-up unit, by PLC programmed control, automatically identifies and record substandard product, the belt conveyor 2 of discharging is provided with photoelectric sensor and picks material cylinder, automatically substandard product being rejected defective material road.
Described detection station be one, two, three, four, five or six and respectively corresponding be equipped with in parameter detection device a kind of, six kinds or any two, three, four, the combination of five kind.
Described detection station is six, and namely first detects station, the second detection station, the 3rd detects station, the 4th detection station, the 5th detects station and the 6th and detects station, and automatic fixture 3 is made up of the dynamic clamping plate 32 of holder 31 and air cylinder driven;
First detect station magnetic test coil and each contact break-make whether qualified; When product power-off, normally closed contact is reliably connected, and normally opened contact reliably disconnects; When product is energized, normally closed contact reliably disconnects, and normally opened contact is reliably connected.
Whether the second detection station magnetic test coil is withstand voltage qualified, and the automatic fixture 3 on this detection station is provided with copper coin 33 with the opposite side of detector probe group 5, and copper coin 33 also can be fitted with the mounting groove of A.C. contactor 4 by air cylinder driven; High-potting voltage is 2500V, adjustable at 0 ~ 5000V, test period 1S, and sets arbitrarily in 0 ~ 120S; Leakage Current is 0 ~ 200mA, comprises the gear of 0 ~ 200mA, can sets itself.The position that product testing detects is: 1. when main contact closes, between all each pole electrified bodys connected together; 2. when main contact disconnects, between the connection terminal of the same side and the connection terminal of opposite side; 3. coil over the ground between, namely coil is between copper coin 33.
3rd detects station magnetic test coil power consumption parameter whether lattice; When product coil energising adhesive, the current value of test coil, when being greater than setting, system judges that product is defective, and setting can set arbitrarily.
Whether 4th to detect the A.C. contactor 4 adhesive parameter that leans forward qualified if detecting station, the automatic fixture 3 on this detection station is provided with the cylinder that automatic fixture 3 is leaned forward; To product coil apply respectively rated voltage, rated voltage 80% ~ 110%, voltage output system adopts stepper motor to rotate the output voltage slowly increasing pressure regulator, A.C. contactor 4 lean forward 5 ° should reliably adhesive, test number (TN) can set arbitrarily.
Whether the 5th detection station detects A.C. contactor 4 hypsokinesis adhesive parameter qualified, and the automatic fixture 3 on this detection station is provided with the cylinder making automatic fixture 3 hypsokinesis; Rated voltage is applied to product coil and makes it adhesive, by A.C. contactor 4 hypsokinesis 5 °, then slowly step-down continuously, exchange at 20% ~ 75%(of rated voltage) reliable release in scope, voltage output system adopts stepper motor to rotate the output voltage slowly reducing pressure regulator, and test number (TN) can set arbitrarily.
6th detect station detection contact open distance and excess of stroke parameter whether qualified time, detector probe group 5 is fixed on linear reciprocation device 6, linear reciprocation device 6 is cylinder, the installing plate of linear reciprocation device 6 is driven by servomotor 8 and ball-screw 9, is wherein also provided with to stretch into A.C. contactor 4 and to float the middle probe 10 of indication piece.Linear reciprocation device 6 pushes detector probe group 5 and middle probe 10 to A.C. contactor 4, detector probe group 5 connects each contact on A.C. contactor 4 and coil, servomotor 8 rotates through after ball-screw 9 drives middle probe 10 to contact with the floating indication piece of A.C. contactor 4, servomotor 8 stops, now the initial point of the middle probe 10 of record.Coil adhesive, servomotor 8 starts, and middle probe 10 extend in A.C. contactor 4 and after contact with floating indication piece, servomotor 8 stops, and the distance now between the position of record centre probe 10 and initial point is total journey.Detect the method opening distance and the excess of stroke and have two kinds: the first is that servomotor 8 reverses, middle probe 10 is retracted into origin position, coil blackout, servomotor 8 rotates forward and promotes floating indication piece by middle probe 10 each main contacts of A.C. contactor 4 is connected respectively, what now, probe 10 was respectively each main contacts to the distance of initial point opens distance, and total journey is the excess of stroke with the difference opening distance.The second is coil blackout, but middle probe 10 props up floating indication piece, servomotor 8 reversion makes each main contacts disconnect one by one, and what the distance between middle probe 10 position to initial point that each main contacts has just disconnected was each main contacts opens distance, and total journey is the excess of stroke with the difference opening distance.
Described mechanical arm 7 is 7 and is equidistantly fixed on web joint 71, the top of web joint 71 is connected with the piston rod of lift cylinder 72, lift cylinder 72 is fixed on slide plate 73, slide plate 73 is arranged on the slide block 73A of line slideway, and left and right linear slide can be realized by the slip between slide block and line slideway 73B, slide plate 73 is provided with guide holder 74, web joint 71 is fixed with guidepost 75, described guidepost 75, through the guide holder 74 on slide plate 73, frame 1 is fixed with the feeding cylinder 76 driving slide plate 73 horizontal reciprocating to slide.The stroke of feeding cylinder 76 equals the distance between two stations, and the every action of feeding cylinder 76 is once just by workpiece movable station.
Described detector probe group 5 is fixed on side plate 61, and side plate 61 is connected with the piston rod of cylinder.Detector probe group 5 is identical with middle probe 10 structure is telescopic structure, inside is provided with spring, the spring force of the floating indication piece in A.C. contactor 4 of the spring force in middle probe 10, thus in the middle of, probe 10 floating indication piece of retracting completely is motionless, can detect the position of floating indication piece, cylinder side plate 61 drives detector probe group 5 to connect with the terminals of A.C. contactor 4.
The clamping plate composition that described mechanical arm 7 parallels primarily of two, two clamping plate are synchronously closed up by air cylinder driven and separate; Multiple mechanical arm 7 is synchronization action all.Mechanical arm 7 clamps A.C. contactor 4 and enters into next station from a upper station.Each parameter detects simultaneously, decreases detection time, improves detection efficiency.
Described feeding station place is provided with feeding turnover mechanism 11, feeding turnover mechanism 11 forms primarily of material loading lift cylinder 111, Connection Block 112 and rollover stand 113, rollover stand 113 is made up of base plate 1131 and dihedral side plate 1132, dihedral side plate 1132 is corresponding with belt conveyor 2, side and the Connection Block 112 of rollover stand 113 are hinged, rollover stand 113 is fixed with position limit arm 114, frame 1 is provided with the push rod 115 corresponding with position limit arm 114; Rollover stand 113 has two duties, one is that before upset, the base plate 1131 of rollover stand 113 is positioned at same plane with belt conveyor 2, A.C. contactor 4 can be delivered on rollover stand 113 by belt conveyor 2, two is that after upset, rollover stand 113 overturns 90 °, now base plate 1131 erects, and dihedral side plate 1132 level is also in same straight line sustained height with each automatic fixture 3 detected on station in frame 1; Discharge station place is provided with blanking turnover mechanism 12, and blanking turnover mechanism 12 is identical with feeding turnover mechanism 11 structure, and during work, action is contrary.During work, material loading lift cylinder 111 rises, and position limit arm 114 leaves push rod 115, and rollover stand 113 naturally overturns after 90 ° under gravity and stops, when material loading lift cylinder 111 declines, position limit arm 114 by push rod 115 jack-up, rollover stand 113 reverse flip 90 °.A.C. contactor 4 its terminals when normal conveying upwards, can be led to by feeding turnover mechanism 11 and overturns 90 ° and make terminals be positioned at side, be convenient to detection; After detection terminates, then by blanking turnover mechanism 12, A.C. contactor 4 is turned back normal condition.
Described belt conveyor 2 is provided with positioning cylinder 13 with the contact jaw of feeding turnover mechanism 11.The A.C. contactor 4 entered after feeding turnover mechanism 11 can block by positioning cylinder 13, makes it remain on waiting status.
Described belt conveyor 2 is provided with the blowing tube communicated with pressure air, and blowing tube is above A.C. contactor 4.Blowing tube can blow down the dust on A.C. contactor 4 terminals.
Claims (3)
1. an automatic testing equipment, comprise frame (1) and belt conveyor (2), it is characterized in that: the approach axis along workpiece in frame (1) is provided with feeding station successively, detect station and discharge station, distance between adjacent stations is equal, detect station and be provided with automatic fixture (3), the side of automatic fixture (3) is provided with the detector probe group (5) corresponding with each terminals of A.C. contactor (4), one group of detector probe group (5) is electrically connected with corresponding parameter detection device, detector probe group (5) is fixed on linear reciprocation device (6) and goes up and drive itself and A.C. contactor (4) to switch on and off by linear reciprocation device (6), the top of automatic fixture (3) is at least provided with two mechanical arms (7), distance between adjacent machine hand (7) is equal with the distance between adjacent stations, mechanical arm (7) is driven by lifting reciprocating linear device and horizontal reciprocating linear device, mechanical arm (7) holding workpiece can move to adjacent next station from a station, the clamping plate composition that mechanical arm (7) parallels primarily of two, two clamping plate are synchronously closed up by air cylinder driven and separate, multiple mechanical arm (7) is synchronization action all, parameter detection device is divided into detection on off test device, coil pressure resistant testing device, power consumption parameter proving installation, the adhesive parameter test device that leans forward, hypsokinesis adhesive parameter test device, clearance between open contacts and excess of stroke parameter test device six kinds, detecting station is six, namely first detects station, the second detection station, the 3rd detects station, the 4th detection station, the 5th detects station and the 6th and detects station, and automatic fixture (3) is made up of the dynamic clamping plate (32) of holder (31) and air cylinder driven,
First detect station magnetic test coil and each contact break-make whether qualified;
Whether the second detection station magnetic test coil is withstand voltage qualified, automatic fixture (3) on this detection station opposite side that is upper and detector probe group (5) is provided with copper coin (33), and copper coin (33) also can be fitted with the mounting groove of A.C. contactor (4) by air cylinder driven;
3rd detects station magnetic test coil power consumption parameter whether lattice;
Whether 4th to detect A.C. contactor (4) the adhesive parameter that leans forward qualified if detecting station, the automatic fixture (3) on this detection station is provided with the cylinder that automatic fixture (3) is leaned forward;
Whether the 5th detection station detects A.C. contactor (4) hypsokinesis adhesive parameter qualified, and the automatic fixture (3) on this detection station is provided with the cylinder making automatic fixture (3) hypsokinesis;
6th detect station detection contact open distance and excess of stroke parameter whether qualified time, detector probe group (5) is fixed on linear reciprocation device (6), the installing plate of linear reciprocation device (6) is driven by servomotor (8) and ball-screw (9), is wherein also provided with the middle probe (10) stretching into the floating indication piece of A.C. contactor (4).
2. automatic testing equipment according to claim 1, it is characterized in that: mechanical arm (7) is 7 and is equidistantly fixed on web joint (71), the top of web joint (71) is connected with the piston rod of lift cylinder (72), lift cylinder (72) is fixed on slide plate (73), slide plate (73) is arranged on the slide block (73A) of line slideway, and left and right linear slide can be realized by the slip between slide block and line slideway (73B), slide plate (73) is provided with guide holder (74), web joint (71) is fixed with guidepost (75), described guidepost (75) is through the guide holder (74) on slide plate (73), frame (1) is fixed with the feeding cylinder (76) driving slide plate (73) horizontal reciprocating to slide.
3. automatic testing equipment according to claim 1 and 2, is characterized in that: detector probe group (5) is fixed on side plate (61), and side plate (61) is connected with the piston rod of cylinder.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210050016.4A CN102590741B (en) | 2012-02-29 | 2012-02-29 | AC contactor automatic test device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210050016.4A Division CN102590741B (en) | 2012-02-29 | 2012-02-29 | AC contactor automatic test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103529383A CN103529383A (en) | 2014-01-22 |
| CN103529383B true CN103529383B (en) | 2015-10-14 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210050016.4A Expired - Fee Related CN102590741B (en) | 2012-02-29 | 2012-02-29 | AC contactor automatic test device |
| CN201310459481.8A Expired - Fee Related CN103529383B (en) | 2012-02-29 | 2012-02-29 | Automatic testing equipment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210050016.4A Expired - Fee Related CN102590741B (en) | 2012-02-29 | 2012-02-29 | AC contactor automatic test device |
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| CN (2) | CN102590741B (en) |
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| CN201555909U (en) * | 2009-11-03 | 2010-08-18 | 东莞创慈磁性元件有限公司 | Automatic detection equipment for detecting transformer |
| CN201993429U (en) * | 2011-01-10 | 2011-09-28 | 上海亿盟电气自动化技术有限公司 | Assembly line device for automatically detecting performance of contactor |
| CN202057768U (en) * | 2011-05-03 | 2011-11-30 | 厦门精合电气自动化有限公司 | Contactor contact parameter testing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103529383A (en) | 2014-01-22 |
| CN102590741B (en) | 2014-03-12 |
| CN102590741A (en) | 2012-07-18 |
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