CN103743992B - The durability testing system of receptacle and High-efficiency consistency method of testing - Google Patents
The durability testing system of receptacle and High-efficiency consistency method of testing Download PDFInfo
- Publication number
- CN103743992B CN103743992B CN201410033975.4A CN201410033975A CN103743992B CN 103743992 B CN103743992 B CN 103743992B CN 201410033975 A CN201410033975 A CN 201410033975A CN 103743992 B CN103743992 B CN 103743992B
- Authority
- CN
- China
- Prior art keywords
- axis
- plug
- socket
- stepper motor
- test
- 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.)
- Active
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention discloses durability testing system and the High-efficiency consistency method of testing of a kind of family expenses and similar applications receptacle, and system is made up of PC control device, slave computer control device and stepper motor executable operations device; Step motor actuator replaces existing air-leg actuator, eliminates air-leg actuator maintenance work amount and the excessive shortcoming of expense.Three-dimensional clamping numerical control positioning has that follow-on test does not interrupt, accurate positioning, advantage that test result consistance is high.Use for reference the test under " elevator speed " Analog control of " elevator speed " curve, enforcement correction: the Speed open-loop control of non-plug sub-line journey, the displacement closed-loop control of plug sub-line journey; " elevator speed " test revised is omnidistance without sudden change of acceleration, has taken into account testing efficiency and measuring accuracy; In addition, the possibility that stepper motor rigid mechanical transmission damages ring test equipment has been stopped in the displacement closed-loop control plugging sub-line journey.
Description
Technical field
The present invention relates to the technical field of family expenses and similar applications electrical equipment durability test, the durability testing system of particularly a kind of family expenses and similar applications receptacle and High-efficiency consistency method of testing.
Background technology
Family expenses and similar applications receptacle, as basic circuit connector part, are work and an electric appliances accessory product indispensable in living.Effective test macro and method of testing are one of critical support technology ensureing socket quality, and the quality of socket quality is directly connected to the access reliable use of electrical equipment and the personal safety of user.The durability index of receptacle is the technical target of the product that state compulsory standard specifies to express; The intension of permanance refers to the under-stream period of product non-fault (or Maintenance free), for characterizing the probable life characteristic of product.The harm not up to standard of socket durability index is as follows:
1. cannot ensure within the legal durability index phase that electrical equipment is through the reliable place in circuit of socket, or connect the open circuit of to stop socket defect after circuit and causing; This will affect normal work and the life of people.
2. the short circuit that socket defect causes cannot be got rid of within the legal durability index phase; Damage electrical equipment is even jeopardized personal safety by this.
3. cannot eliminate the mating surface virtual connection phenomenon of socket and plug within the legal durability index phase, namely circuit is in switch-on and-off or by disconnected not disconnected state; This, by causing high hot and the circuit aging and then initiation fire in the local of mating surface, causes great people life property loss.
In Dec calendar year 2001, in " Compulsory Certification of Products administrative provisions " that China promulgates first time, just socket, switch are classified as Compulsory certification of products.Must be detected by corresponding before enterprise product listing, and obtain CCC certificate; In addition, also require that enterprise is checked by modes such as check, sampling observations and maintained the quality stability of product every year.According to existing national standards GB2099.1-2008 " family expenses and similar applications plugs and sockets part 1: General Requirement " and GB16915.1-2003 " the switch part 1 of family expenses and similar applications fixed electric: General Requirement " relevant provision requirement, product has to pass through the test of corresponding viability.The requirement of GB durability test part gathers in table 1; Obviously, during the test of permanance product certification, switch need through the operation of about 50000 times, and socket has then needed the connect-disconnect life of about 10000 times to test.Viability test regulation: should be undeformed after specification product test, various functions is normal.
The technical manual of table 1 switch, socket durability test
At present, the main flow test macro that socket and switch endurance certification adopt with method is: air pump is connected pneumatosphere valve, controls the open and close of pneumatic valve by summary procedure; By pneumatic valve On/Off state Qie Change, air pressure/spring promotes pneumatic execution bar and to go round and begin again back and forth movement, completes the durability test of socket and switch.The above-mentioned test macro technology maturation based on digital output modul technology, structure are simple, but in test practice for many years, the weak point of main flow test macro also exposes gradually, urgently improves; Relative switch, the durability test problem of socket is particularly outstanding, and therefore the present invention only launches to discuss with regard to the durability test of socket.The analysis of causes of the defect that main flow durability testing system and method exist and defect is as follows:
1, the maintenance work amount of test macro and expense excessive.Under prior art condition, the mean lifetime of air-leg is at about 100000 times, and socket durability test just needs the plug of 10000 times; The air-leg proportion of goods damageds are too large, cause the sharp increase of testing cost and maintenance work amount.
2, complex operation, efficiency and precision are on the low side.First, during fixed socket, test macro adopts the method for two-dimentional fixture and artificial visual clamping, needs the Set and Positioning repeatedly adjusting socket, complex operation, time and effort consuming before test; The second, socket is after the permanance plug of certain number of times, and the friction force often because of impact when inserting and when extracting causes the fixture of fixed socket to offset, and therefore of common occurrence by the event of forced-stopping machine, again Set and Positioning in test, testing efficiency declines; Finally, the requirement of artificial visual Set and Positioning to test man is higher, and different because of people's (Set and Positioning precision of socket) on test result certain degree, measuring accuracy is on the low side.
3, the consistance of test result has much room for improvement.Under the control of pneumatic valve on/off switch amount, air-leg completes the plug operation needed for socket durability test; Considering based on testing efficiency, the test travel speed of air-leg can not be too low, but when plugging at a high speed, plug and socket can produce shock more or less, even occurs sparking and phenomenon of arc discharge, not only damage test block socket, and the consistance of test result is deteriorated.Though the plug speed of the non-considered critical socket of GB and Set and Positioning precision, but theoretical analysis all shows with experiment test: permanance detected value exists from the Set and Positioning precision of plug speed, socket association--because plugging the different of speed and positioning precision, A laboratory is judged to qualified socket and is likely vetoed in B laboratory, and vice versa.The test of theoretical ideal at utmost should reappear actual working environment residing for test block and operating conditions, the usual artificial visual positioning socket of appliance plug, slowly to insert or extract socket by manpower, generally there is not impact therebetween; Therefore, the air-leg plug operation of digital output modul deviate from the practical operation condition of socket; By three-dimensional clamping numerical control positioning and Analog control technology, contribute to the consistance improving permanance detected value undoubtedly.Whether contact with socket according to plug, the test stroke of air-leg can be further subdivided into plug sub-line journey and non-plug sub-line journey; During plug sub-line journey, air-leg gets low speed, avoids the shock of plug and socket; During non-plug sub-line journey, air-leg is got at a high speed, is conceived to the efficient of test, and preferred air-leg high speed stroke is still needed to meet and suddenlyd change without acceleration (power) simultaneously.
For the defect that existing test macro and method of testing exist, the present invention proposes innovative approach one by one: step motor actuator replaces air-leg actuator; Two dimension clamping is manually located and is improved to three-dimensional clamping numerical control positioning; Give up the strategy of digital output modul test travel speed, use for reference " elevator speed " curve, implement the strategy that Analog control tests travel speed.Must be pointed out, air-leg actuator allows test stroke to have certain displacement overgauge, because gas is compressible and the air pressure of the maximum drive of air-leg actuator air pressure≤source of the gas; But the displacement overgauge of step motor actuator to stroke has strictly places restrictions on, and mechanical drive pair is incompressible after all; Therefore, the accurate Bit andits control strategy of step motor actuator plug sub-line journey is necessary, and namely the end of desirable " elevator speed " curve need do corresponding correction--guarantee the accurate displacement plugging sub-line journey.
Summary of the invention
The object of the invention is the deficiency overcoming existing main flow test macro and technology, durability testing system and the High-efficiency consistency method of testing of a kind of family expenses and similar applications receptacle are provided.
The durability testing system of family expenses and similar applications receptacle is by a PC control device, and slave computer control device and executable operations device form;
PC control device comprises industrial computer and lower cabinet; Industrial computer is placed in lower cabinet top, connects the PLC of slave computer control device through RS485 interface, and the built-in uninterrupted power source of lower cabinet is connected with electrical network;
Slave computer control device comprises display unit, control module, three axle point moving cell and lower computer control cabinet; Display unit is positioned at the top of slave computer control device, comprises the socket electrical quantity LED display of test macro and the navigation LED display of load setting; Control module is positioned at the middle part of slave computer control device, comprises resistance adjustment module, adjustment of inductance module, work display lamp, alarm display lamp, debugging control switch, on/off switch, boost button, step-down button and scram button;
Control module is connected with lower computer control cabinet, and regulate resistance, coil and pressure regulator in lower computer control cabinet, generate the testing power supply that receptacle durability test standard specifies, the electric parameter of testing power supply is presented on display unit in real time;
Three axle point moving cells comprise positive and negative to X-axis inching button, positive and negative to Y-axis inching button, positive and negative to Z axis inching button, each button is connected with the PLC in lower computer control cabinet respectively, after socket installation to be detected, obtain X, Y, Z tri-axle positional parameter of socket to be detected by three axle point moving cells;
Lower computer control cabinet inside PLC, accepts the industrial computer instruction of PC control device by RS485 bus, export Analog control signal to driving stepper motor module;
Executable operations device comprises latticed operator's console, gantry stand, X-axis stepping mechanism, Z axis stepping mechanism, Y-axis stepping mechanism, three-dimensional grips mechanism and lower cabinet; Gantry stand is arranged on latticed operator's console, and X-axis stepping mechanism, Z axis stepping mechanism, Y-axis stepping mechanism are connected with driving stepper motor module, respectively perform X, Y, Z axis to motion; Measured piece, by the three-dimensional technique for fixing of X, Y, Z, is fixed on latticed operator's console by three-dimensional grips mechanism.
Described latticed operator's console comprise adjustable support pin, lower shoe, latticed working plate, the y-axis stepper motor installing plate of Y-axis stepping mechanism, the Y-axis worm couple mounting hole of Y-axis stepping mechanism and parts of bearings, gantry stand rail plate and install dividing plate;
Latticed working plate, installation dividing plate and lower shoe from top to bottom, are fixed into a rectangular frame respectively by screw by latticed operator's console; Lower shoe is fixed on adjustable support pin by screw; Y-axis stepper motor installing plate, Y-axis worm couple mounting hole and parts of bearings are individually fixed on the installation dividing plate on right side; Two rail plates of gantry stand fix to clamp respectively to be installed between dividing plate in two pieces, left and right.
Described gantry stand comprises the installing plate of the slide block on the X-axis stepper motor installing plate of X-axis stepping mechanism, the rectangular mounting plate of X-axis stepping mechanism, the rail plate of X-axis stepping mechanism, the X-axis worm couple mounting hole of X-axis stepping mechanism and parts of bearings, gantry stand rail plate, slide block, Z-type installing plate and gantry stand rail plate slide block on Y-axis worm couple;
Slide block on the installing plate of the slide block on the rail plate of the rectangular mounting plate of X-axis stepping mechanism, X-axis stepping mechanism, gantry stand rail plate, gantry stand rail plate and the slide block on Y-axis worm couple are fixed in aggregates from top to bottom by screw by left and right two pieces of Z-type installing plates respectively, this entirety is fixed on Y-axis worm couple by the slide block on Y-axis worm couple, and y-axis stepper motor implements Y-motion through Y-axis worm couple; The mounting hole of X-axis worm couple and parts of bearings are installed on the two pieces of Z-type installing plates in left and right respectively; The installing plate of X-axis stepper motor is fixed on the Z-type installing plate of left side.
Described X-axis stepping mechanism comprises the installation slide block of slide block on X-axis stepper motor, X-axis worm couple, the Z axis stepper motor installing plate of Z axis stepping mechanism, the upper mounting plate of Z axis stepping mechanism, the rail plate of Z axis stepping mechanism, the lower installation board of Z axis stepping mechanism, X-axis worm couple and proximity switch;
X-axis worm couple is arranged in the rotating shaft of X-axis stepper motor by shaft coupling, from top to bottom respectively by screw by fastening for the lower installation board of the slide block on the rail plate of the upper mounting plate of Z axis stepper motor installing plate, Z axis stepping mechanism, Z axis stepping mechanism, X-axis worm couple and Z axis stepping mechanism be one overall, positive and negatively control X-axis stepper motor to the PLC of X-axis inching button in lower computer control cabinet, drive X-axis worm couple to implement X-motion, PLC records X axis travel displacement
;installing slide block is arranged on rail plate, and its position can adjust according to the concrete size of test product and installation site.
Described Z axis stepping mechanism comprises slide block, plug fixed device and proximity switch on Z axis stepper motor, Z-axis transmission worm screw, Z axis stepper motor;
Plug fixed device fixes the corresponding plug of socket to be detected, the side that proximity switch XS612B1PLA2 is arranged on the installation slide block of proximity switch, induction metal plate is arranged on plug fixed device, its lower edge flushes with edge under standard plug latch, the interrupting input end INT1 of PLC in the output signal access lower computer control cabinet of proximity switch;
Positive and negatively control Z axis stepper motor to the PLC of Z axis inching button in lower computer control cabinet, drive Z axis worm couple to implement Z-motion; PLC records Z-axis direction travel displacement, according to the proximity switch installation parameter of user's input and test speed parameter, host computer generates " elevator speed " test curve tables of data of correction accordingly: the stepper motor umber of pulse of the stepper motor pulsed frequency table of the Speed open-loop control of non-plug sub-line journey, the displacement closed-loop control of plug sub-line journey; Non-plug sub-line journey is the travel displacement of plug Autonomous test initial point to proximity switch, and plug sub-line journey is the travel displacement of proximity switch to plug insertion socket when completing.
Described Y-axis stepping mechanism comprises y-axis stepper motor and Y-axis geared worm;
Positive and negatively control y-axis stepper motor to the PLC of Y-axis inching button in lower computer control cabinet, drive Y-axis worm couple to implement Y-motion, realize the motion of gantry stand in Y-axis, PLC records Y-axis travel displacement.
Described three-dimensional grips mechanism comprises eight cross fishtail bolts and two panels elastic clamping sheet;
Every root cross fishtail bolt is made up of a stud, two set screw and one piece of clamp with resilient material; The stud first half is column helicitic texture, and Lower Half is column smooth structure, and set screw is threadedly secured in the Lower Half of this bolt, and stud base is cross dovetail configuration, and clamp is fixed in set screw; Elastic clamping sheet is a flat metal moulding, and respectively there is a through hole at its two ends, cross fishtail bolt through in addition fastening with spring shim and nut after through hole, be adjacent in the middle part of moulding measured piece part also for resilient material, in order to increase clamping force; Measured piece is fixed on any one grid of latticed working plate, eight cross fishtail bolts are one group with two, respectively from X, Y-axis positive and negative two to clamping measured piece, ensure the clamping of measured piece X, Y direction, tightening set screw makes the resilient material face of clamp be close to the bottom mounting box of measured piece, fixing by eight cross fishtail bolts, ensure measured piece X, Y direction fastening; Two panels elastic clamping sheet respectively by spring shim and fastening nuts on two groups of cross fishtail bolts of Y direction, measured piece is tightly fixed between latticed working plate and elastic clamping sheet, ensure the fixing of its Z-direction, thus realize the stability of three-dimensional clamping and the uniqueness of locus; In durability test process, the socket displacement that swapping process produces because of friction force stopped by three-dimensional clamping, and the test interruption that causes of displacement and secondary clamping; During the test of same model socket, the operation of crawl determination socket X, Y, Z coordinate parameters can be omitted.
VB1-24MTPLC and YK2609MA driving stepper motor module selected by described slave computer control device; The RS485 port of VB1-24MT is connected with the RS485 port of industrial computer, accepts correction " elevator speed " curve data that host computer generates, carries out efficient non-plug sub-line journey Speed open-loop control; The interruptive port INT1 of the digital quantity signal access VB1-24MT of proximity switch, interrupt response program reads in the stepper motor umber of pulse of the sub-travel displacement of plug corresponding to proximity switch, plugs sub-travel displacement closed-loop control accurately; Positive and negative to X-axis inching button, positive and negative to Y-axis inching button, the positive and negative digital quantity signal to Z axis inching button accesses digital quantity input port DI0, DI1, DI2, DI3, DI4 and DI5 of VB1-24MT respectively, point operation control X-axis stepping mechanism, Z axis stepping mechanism and Y-axis stepping mechanism, determine socket X, Y, Z coordinate parameters; VB1-24MT analog output end AI0, AI1 access PU-, DR-of the first stepping motor drive module respectively, drive the X-axis stepper motor of X-axis stepping mechanism; VB1-24MT analog output end AI2, AI3 access PU-, DR-of the second stepping motor drive module respectively, drive the y-axis stepper motor of Y-axis stepping mechanism; VB1-24MT analog output end AI4, AI5 access PU-, DR-of the 3rd driving stepper motor module respectively, drive the Z axis stepper motor of Z axis stepping mechanism.
Speed ~ time, the acceleration ~ time curve of described receptacle durability test Z axis stroke use for reference " ideal speed curve " that elevator industry is praised highly, consider from the acceleration visual angle of plug and the acceleration and deceleration process of plug travel is divided into 7 stages: add accelerating sections, even accelerating sections, subtract accelerating sections, at the uniform velocity section, accelerating and decelerating part, even braking section, subtract braking section, and consider from the speed visual angle of plug, " ideal speed curve " is divided into again starting to accelerate, travel at the uniform speed and braking deceleration three sections, rise/retaining segment curve is specular; simultaneously Whether contact with socket according to plug, test stroke and be divided into and plug sub-line journey and non-plug sub-line journey, testing efficiency depends on the plug speed of non-plug sub-line journey, and the plug speed of plug sub-line journey is then related to measuring accuracy; " ideal speed curve " has taken into account testing efficiency and measuring accuracy: the height of plug has tested the speed S
no-insertthe low S that tested the speed of displacement, plug
insertdisplacement;
Consider the gap error of Electrified Transmission error and mechanical drive pair and test the electrical equipment Parameters variation and mechanical wear error that cause for a long time, presence bit shift error ± Δ S(Δ S>0 in test stroke); With regard to rigidity Zhi Hang Ji Ju stepper motor of test macro, the impact of Δ S on testing reliability, measuring accuracy is huge: there will be great pressure when even crushing socket or plug ,-Δ S during+Δ S, between plug and socket, plug does not insert socket by standard-required causes test result serious distortion, revise the plug opened loop control based on " ideal speed curve ": at from home S
insert+ Δ S place arranges proximity switch, this test macro Δ S=5mm;
Definition 1: the sub-travel displacement of non-plug of correction is S
no-insert-Δ S=125mm-5mm=120mm,
Definition 2: the sub-travel displacement of plug of correction is S
insert+ Δ S=25mm+5mm=30mm;
The plug control algolithm revising " ideal speed curve " is as follows:
During the motion of plug insertion socket direction, ， Ji Suan And stores S
insertstepper motor pulsed quantity N0, N=N0 that+Δ S is corresponding,
The sub-travel displacement S of non-plug revised
no-insertwithin the scope of-Δ S, by the stepper motor pulsed frequency f of " ideal speed curve " correspondence, the speed of opened loop control plug,
The sub-travel displacement S of plug revised
insertwithin the scope of+Δ S, perform the closed loop control algorithm of displacement--read the stepper motor pulsed frequency f that " ideal speed curve " is corresponding, displacement closed-loop control N=N-f*Ts until N=0, f be the stepper motor pulsed frequency of corresponding ideal speed, Ts is the sampling period,
When the motion of socket direction extracted by plug, continue to use the control algolithm during motion of plug insertion socket direction.
The permanance High-efficiency consistency detection method of described receptacle is divided into: test prepares flow process and plug plug testing process;
Test prepares flow process: be fixed on latticed working plate by three-dimensional clamping mechanism from X-axis, Y-axis, Z-direction by product to be tested, plug fixed device fixes the corresponding plug of socket to be detected, Z axis stepping mechanism rail plate installs proximity switch, plug distance socket 5mm when making Plug contact proximity switch, host computer inputs the installation site of proximity switch;
Make plug insertion socket by three axle point moving cells, PLC records socket coordinate, and test initial point is to the Z axis travel displacement of proximity switch and the sub-travel displacement S of non-plug
no-insert-z axis travel displacement when Δ S, proximity switch to plug insertion socket completes plugs sub-travel displacement S
insert+ Δ S, host computer generates " elevator speed " test curve tables of data of correction accordingly: the stepper motor umber of pulse of the stepper motor pulsed frequency table of the Speed open-loop control of non-plug sub-line journey, the displacement closed-loop control of plug sub-line journey; Regulated resistance, coil and pressure regulator in lower computer control cabinet by control module, generate the testing power supply that receptacle durability test standard specifies; Plug resets;
Socket X, Y-coordinate polarized plug that plug plug testing process: X, Y-axis stepping mechanism record according to PLC, correction " elevator speed " the test curve tables of data that Z axis stepping mechanism generates according to host computer carries out the Speed open-loop control of non-plug sub-line journey, and plug exports PLC look-at-me through proximity switch, proximity switch, proceeds to the displacement closed-loop control of correction " elevator speed " the test curve tables of data of non-plug sub-line journey; Plug withdrawal process and insertion process mirror image each other, without exception and before not arriving set point number at measured piece, program loop performs non-plug sub-line journey with plug sub-line journey until test and stop.
The present invention is compared with background technology, and the beneficial effect had is: the present invention's step motor actuator replaces existing air-leg actuator, eliminates air-leg actuator maintenance work amount and the excessive shortcoming of expense.Three-dimensional clamping numerical control positioning replaces two-dimentional clamping and manually locates, and has that follow-on test does not interrupt, accurate positioning, an advantage that test result consistance is high.Use for reference the test under " elevator speed " Analog control of " elevator speed " curve, enforcement correction: the Speed open-loop control of non-plug sub-line journey, the displacement closed-loop control of plug sub-line journey; " elevator speed " test revised is omnidistance without acceleration (power) sudden change, has taken into account testing efficiency and measuring accuracy: the height of non-plug sub-line journey tests the speed, plug the low of sub-line journey tests the speed; In addition, the possibility that stepper motor rigid mechanical transmission damages ring test equipment has been stopped in the displacement closed-loop control plugging sub-line journey.
Accompanying drawing explanation
Fig. 1 is the structural representation of receptacle durability testing system;
Fig. 2 is the connection diagram of control module and electric elements;
Fig. 3 is the structural drawing of latticed operator's console, and wherein, (a) is front view, and (b) is left view, and (c) is vertical view;
Fig. 4 is the structural drawing of gantry stand, and wherein, (a) is front view, and (b) is left view;
Fig. 5 is the structural drawing of X-axis stepping mechanism, wherein, (a) front view, (b) is left view;
Fig. 6 is the structural drawing of Z axis stepping mechanism;
Fig. 7 is the structural drawing of Y-axis stepping mechanism;
The structural drawing of Tu8Shi three-dimensional grips mechanism, wherein, (a) is cross fishtail bolt schematic diagram, (b) is elastic clamping sheet schematic diagram, (c) be assembling after vertical view;
Fig. 9 is the circuit diagram of PLC and stepper motor;
Figure 10 is the process flow diagram of receptacle durability test method;
Figure 11 is speed ~ time, the acceleration ~ time plot of receptacle durability test stroke.
Embodiment
As shown in Figure 1, the durability testing system of family expenses of the present invention and similar applications receptacle is by PC control device 100, and slave computer control device 200 and executable operations device 300 form; Executable operations device 300 is connected with slave computer control device 200, and slave computer control device 200 is connected with PC control device 100.
PC control device 100 comprises industrial computer 101 and lower cabinet 102; Industrial computer 101 is placed in lower cabinet 102 top, connects the PLC of slave computer control device 200 through RS485 interface, and the built-in uninterrupted power source of lower cabinet 102 is connected with electrical network, for industrial computer 101 is powered.
Slave computer control device 200 comprises display unit 210, control module 220, three axle point moving cell 230 and lower computer control cabinet 240; Display unit 210 is positioned at the top of slave computer control device 200, comprises the socket electrical quantity LED display 211 of test macro and the navigation LED display 212 of load setting; Control module 220 is positioned at the middle part of slave computer control device 200, comprises resistance adjustment module 221, adjustment of inductance module 222, work display lamp 223, alarm display lamp 224, debugging control switch 225, on/off switch 226, boost button 227, step-down button 228 and scram button 229; Control module 220 is connected with lower computer control cabinet 240, the testing power supply that resistance, telefault and pressure regulator in adjustment lower computer control cabinet 240, generation receptacle durability test standard specify, the electric parameter of testing power supply is presented on display unit 210 in real time; Three axle point moving cells 230 comprise forward X-axis inching button 231, negative sense X-axis inching button 232, forward Y-axis inching button 233, negative sense Y-axis inching button 234, forward Z axis inching button 235, negative sense Z axis inching button 236, each button is connected with the PLC in lower computer control cabinet 240 respectively, after socket installation to be detected, obtain X, Y, Z tri-axle positional parameter of socket to be detected by three axle point moving cells; Lower computer control cabinet 240 inside PLC, accepts industrial computer 101 instruction of PC control device by RS485 bus, export Analog control signal to driving stepper motor module.
Executable operations device 300 comprises latticed operator's console 310, gantry stand 320, X-axis stepping mechanism 330, Z axis stepping mechanism 340, Y-axis stepping mechanism 350, three-dimensional grips mechanism 360 and lower cabinet 370; Gantry stand 320 is arranged on latticed operator's console 310, latticed operator's console 310 is placed on lower cabinet 370, X-axis stepping mechanism 330 and Z axis stepping mechanism 340 are arranged on gantry stand 320, Y-axis stepping mechanism 350 is arranged on latticed operator's console 310, X-axis stepping mechanism 330, Z axis stepping mechanism 340, Y-axis stepping mechanism 350 connect a driving stepper motor module respectively, perform X, Y, Z axis to motion; Measured piece, by the three-dimensional technique for fixing of X, Y, Z, is fixed on latticed operator's console 310 by three-dimensional grips mechanism 360.
As shown in Figure 2, in lower computer control cabinet 240, built-in TDGC2-10KVA pressure regulator 241, MY1810-A telefault 242, variable resistor 243, fixed resistance 244, current/voltage table 245 form load circuit with resistance adjustment module 221, adjustment of inductance module 222, the display lamp 223 that works, alarm display lamp 224, debugging control switch 225, on/off switch 226, boost button 227, step-down button 228 and scram button 229 contained by control module 220, and TDGC2-10KVA pressure regulator 241 input end connects electrical network.
As shown in Fig. 3 (a) and (b), (c), latticed operator's console 310 comprise adjustable support pin 311, lower shoe 312, latticed working plate 313, the y-axis stepper motor installing plate 314 of Y-axis stepping mechanism 350, the Y-axis worm couple mounting hole of Y-axis stepping mechanism 350 and parts of bearings 315, gantry stand 320 rail plate 316 and install dividing plate 317.
Latticed working plate 313, installation dividing plate 317 and lower shoe 312 from top to bottom, are fixed into a rectangular frame respectively by screw by latticed operator's console 310; Lower shoe 312 is fixed on adjustable support pin 311 by screw; Y-axis stepper motor installing plate 314, Y-axis worm couple mounting hole and parts of bearings 315 are individually fixed on the installation dividing plate 317 on Fig. 3 (b) right side; Two rail plates 316 of gantry stand 320 fix to clamp respectively to be installed between dividing plate 317 in two pieces, left and right.
As shown in Fig. 4 (a) and (b), gantry stand 320 comprises the installing plate 328 of the slide block 325 on the X-axis stepper motor installing plate 321 of X-axis stepping mechanism 330, the rectangular mounting plate 322 of X-axis stepping mechanism 330, the rail plate 323 of X-axis stepping mechanism 330, the X-axis worm couple mounting hole of X-axis stepping mechanism 330 and parts of bearings 324, gantry stand rail plate 316, slide block 326, Z-type installing plate 327 and gantry stand rail plate slide block 325 on Y-axis worm couple.
Slide block 325 on the installing plate 328 of the slide block 325 on the rail plate 323 of the rectangular mounting plate 322 of X-axis stepping mechanism 330, X-axis stepping mechanism 330, gantry stand rail plate, gantry stand rail plate 316 and the slide block 326 on Y-axis worm couple are fixed in aggregates from top to bottom by screw by Fig. 4 (a) left and right two pieces of Z-type installing plates 327 respectively, this entirety is fixed on Y-axis worm couple by the slide block 326 on Y-axis worm couple, and y-axis stepper motor implements Y-motion through Y-axis worm couple; The mounting hole of X-axis worm couple and parts of bearings 324 are installed on the two pieces of Z-type installing plates 327 in left and right respectively; The installing plate 321 of X-axis stepper motor is fixed on left side Z-type installing plate 327.
As shown in Fig. 5 (a) and (b), X-axis stepping mechanism 330 comprises the installation slide block 338 of slide block 337 on X-axis stepper motor 331, X-axis worm couple 332, the Z axis stepper motor installing plate 333 of Z axis stepping mechanism 340, the upper mounting plate 334 of Z axis stepping mechanism 340, the rail plate 335 of Z axis stepping mechanism 340, the lower installation board 336 of Z axis stepping mechanism 340, X-axis worm couple 332 and proximity switch.
X-axis worm couple 332 is arranged in the rotating shaft of X-axis stepper motor 331 by shaft coupling, Fig. 5 (b) from top to bottom respectively by screw by Z axis stepper motor installing plate 333, the upper mounting plate 334 of Z axis stepping mechanism 340, the rail plate 335 of Z axis stepping mechanism 340, slide block 337 on X-axis worm couple 332 and the lower installation board 336 of Z axis stepping mechanism 340 fastening be one overall, forward X-axis inching button 231, the PLC of negative sense X-axis inching button 232 in lower computer control cabinet 240 controls X-axis stepper motor 331, X-axis worm couple 332 is driven to implement X-motion, PLC records X axis travel displacement
,installing slide block 338 is arranged on rail plate 335, and its position can adjust according to the concrete size of test product and installation site.
As shown in Figure 6, Z axis stepping mechanism 340 comprises slide block 343, plug fixed device 344 and the proximity switch 345 on Z axis stepper motor 341, Z-axis transmission worm screw 342, Z axis stepper motor 341.
Plug fixed device 344 fixes the corresponding plug of socket to be detected, the side that proximity switch XS612B1PLA2345 is arranged on the installation slide block 338 of proximity switch, induction metal plate is arranged on plug fixed device 344, its lower edge flushes with edge under standard plug latch, the interrupting input end INT1 of PLC in the output signal access lower computer control cabinet 240 of proximity switch.
Forward Z axis inching button 235, negative sense Z axis inching button 236 PLC in lower computer control cabinet 240 controls Z axis stepper motor 341, drives Z axis worm couple 342 to implement Z-motion; PLC records Z-axis direction travel displacement, according to the proximity switch installation parameter of user's input and test speed parameter, host computer generates " elevator speed " test curve tables of data of correction accordingly: the stepper motor umber of pulse of the stepper motor pulsed frequency table of the Speed open-loop control of non-plug sub-line journey, the displacement closed-loop control of plug sub-line journey; Non-plug sub-line journey is the travel displacement of plug Autonomous test initial point to proximity switch, and plug sub-line journey is the travel displacement of proximity switch to plug insertion socket when completing.
As shown in Figure 7, Y-axis stepping mechanism 350 comprises y-axis stepper motor 351 and Y-axis geared worm 352.
Forward Y-axis inching button 233, negative sense Y-axis inching button 234 PLC in lower computer control cabinet 240 controls y-axis stepper motor 351, drives Y-axis worm couple 352 to implement Y-motion, realize the motion of gantry stand 320 in Y-axis, PLC records Y-axis travel displacement.
As Fig. 8 (a) and (b), shown in (c), three-dimensional grips mechanism 360 comprises eight cross fishtail bolts 361 and two panels elastic clamping sheet 362.
Every root cross fishtail bolt 361 is made up of a stud, two set screw and one piece of clamp with resilient material; The stud first half is column helicitic texture, and Lower Half is column smooth structure, and set screw is threadedly secured in the Lower Half of this bolt, and stud base is cross dovetail configuration, and clamp is fixed in set screw; Elastic clamping sheet 362 is a flat metal moulding, and respectively there is a through hole at its two ends, cross fishtail bolt 361 through in addition fastening with spring shim and nut after through hole, be adjacent in the middle part of moulding measured piece part also for resilient material, in order to increase clamping force; Measured piece is fixed on any one grid of latticed working plate 313, eight cross fishtail bolts 361 are one group with two, respectively from X, Y-axis positive and negative two to clamping measured piece, ensure the clamping of measured piece X, Y direction, tightening set screw makes the resilient material face of clamp be close to the bottom mounting box of measured piece, fixing by eight cross fishtail bolts 361, ensure measured piece X, Y direction fastening; Two panels elastic clamping sheet 362 respectively by spring shim and fastening nuts on two groups of cross fishtail bolts 361 of Y direction, measured piece is tightly fixed between latticed working plate 313 and elastic clamping sheet 362, ensure the fixing of its Z-direction, thus realize the stability of three-dimensional clamping and the uniqueness of locus; In durability test process, the socket displacement that swapping process produces because of friction force stopped by three-dimensional clamping, and the test interruption that causes of displacement and secondary clamping; During the test of same model socket, the operation of crawl determination socket X, Y, Z coordinate parameters can be omitted.
As shown in Figure 9, slave computer control device can select VB1-24MTPLC and YK2609MA driving stepper motor module; The RS485 port of VB1-24MT is connected with the RS485 port of industrial computer 101, accepts correction " elevator speed " curve data that host computer generates, carries out efficient non-plug sub-line journey Speed open-loop control; The interruptive port INT1 of the digital quantity signal access VB1-24MT of proximity switch 345, interrupt response program reads in the stepper motor umber of pulse of the sub-travel displacement of plug corresponding to proximity switch, plugs sub-travel displacement closed-loop control accurately; The digital quantity signal of forward X-axis inching button 231, negative sense X-axis inching button 232, forward X-axis inching button 231, negative sense X-axis inching button 232, forward Z axis inching button 235, negative sense Z axis inching button 236 accesses digital quantity input port DI0, DI1, DI2, DI3, DI4 and DI5 of VB1-24MT respectively, point operation control X-axis stepping mechanism 330, Z axis stepping mechanism 340 and Y-axis stepping mechanism 350, determine socket X, Y, Z coordinate parameters; VB1-24MT analog output end AI0, AI1 access PU-, DR-of the first stepping motor drive module respectively, drive the X-axis stepper motor 331 of X-axis stepping mechanism; VB1-24MT analog output end AI2, AI3 access PU-, DR-of the second stepping motor drive module respectively, drive the y-axis stepper motor 351 of Y-axis stepping mechanism; VB1-24MT analog output end AI4, AI5 access PU-, DR-of the 3rd driving stepper motor module respectively, drive the Z axis stepper motor 341 of Z axis stepping mechanism.
As shown in Figure 10, Figure 10 (a) is " ideal speed curve " for speed ~ time of receptacle durability test Z axis stroke, acceleration ~ time curve, starts from an O, eventually to putting G; Consider from the acceleration visual angle of plug, the acceleration and deceleration process of plug travel is divided into 7 stages by VO ~ VA, VA ~ VB, VB ~ VC, VC ~ VD, VD ~ VE, VE ~ VF and VF ~ VG: add accelerating sections, even accelerating sections, subtract accelerating sections, at the uniform velocity section, accelerating and decelerating part, even braking section, subtract braking section, and consider from speed visual angle Figure 10 (b) of plug, " ideal speed curve " is divided into again starting to accelerate, travel at the uniform speed and braking deceleration three sections, rise/retaining segment curve is specular; simultaneously " ideal speed curve " avoids the sudden change of acceleration, eliminates the power sudden change caused because of sudden change of acceleration in test process and impacts, and contributes to reducing stepper motor and loses the serviceable life of the probability of happening, Yan Long equipment of step, promotes the precision of durability test.
Improve testing efficiency, the test speed of plug need be increased, but the test speed promoting plug is negative on the impact that measuring accuracy causes; Whether contact with socket according to plug, test stroke and be divided into and plug sub-line journey and non-plug sub-line journey, testing efficiency depends on the plug speed of non-plug sub-line journey, and the plug speed of plug sub-line journey is then related to measuring accuracy; Now set off a discussion for the Z axis of Figure 10 receptacle durability testing system test stroke: the Z axis displacement S of non-plug sub-line journey
no-insertthe Z axis displacement S of=125mm, plug sub-line journey
insert=25mm, " ideal speed curve " has taken into account testing efficiency and measuring accuracy well: the height of plug has tested the speed S
no-insertthe low S that tested the speed of displacement, plug
insertdisplacement.
Stepper motor reaches its maturity, such as drift, anti-interference, the index such as reliability, precision all obtain major progress, but consider the gap error of Electrified Transmission error and mechanical drive pair and test the electrical equipment Parameters variation and mechanical wear error that cause for a long time, presence bit shift error ± Δ S(Δ S>0 in test stroke); With regard to rigidity Zhi Hang Ji Ju stepper motor of test macro, the impact of Δ S on testing reliability, measuring accuracy is huge: there will be great pressure when even crushing socket or plug ,-Δ S during+Δ S, between plug and socket, plug does not insert socket by standard-required causes test result serious distortion, therefore need to revise the plug opened loop control based on " ideal speed curve ": at from home S
insert+ Δ S place arranges proximity switch 345, this test macro Δ S=5mm.
Definition 1: the sub-travel displacement of non-plug of correction is S
no-insert-Δ S=125mm-5mm=120mm.
Definition 2: the sub-travel displacement of plug of correction is S
insert+ Δ S=25mm+5mm=30mm.
The plug control algolithm revising " ideal speed curve " is as follows:
A, during the motion of () plug insertion socket direction, Ji Suan And stores S
insertstepper motor pulsed quantity N0, N=N0 that+Δ S is corresponding.
The b sub-travel displacement S of non-plug that () is revised
no-insertwithin the scope of-Δ S, by the stepper motor pulsed frequency f of " ideal speed curve " correspondence, the speed of opened loop control plug.
The c sub-travel displacement S of plug that () is revised
insertwithin the scope of+Δ S, perform the closed loop control algorithm of displacement--read the stepper motor pulsed frequency f that " ideal speed curve " is corresponding, displacement closed-loop control N=N-f*Ts until N=0, f be the stepper motor pulsed frequency of corresponding ideal speed, Ts is the sampling period.
When the motion of socket direction extracted by () plug d, continue to use the control algolithm during motion of plug insertion socket direction.
As shown in Figure 11 (a) shows, the permanance High-efficiency consistency detection method of receptacle is divided into: test prepares flow process and plug plug testing process.
Test prepares flow process as shown in Figure 11 (b): be fixed on latticed working plate 313 by three-dimensional clamping mechanism 360 from X-axis, Y-axis, Z-direction by product to be tested, plug fixed device 344 fixes the corresponding plug of socket to be detected, Z axis stepping mechanism rail plate 335 installs proximity switch 345, plug distance socket 5mm when making Plug contact proximity switch, host computer inputs the installation site of proximity switch.
Make plug insertion socket by three axle point moving cells 230, PLC records socket coordinate, and test initial point is to the Z axis travel displacement of proximity switch and the sub-travel displacement S of non-plug
no-insert-z axis travel displacement when Δ S, proximity switch to plug insertion socket completes plugs sub-travel displacement S
insert+ Δ S, host computer generates " elevator speed " test curve tables of data of correction accordingly: the stepper motor umber of pulse of the stepper motor pulsed frequency table of the Speed open-loop control of non-plug sub-line journey, the displacement closed-loop control of plug sub-line journey; Regulate the resistance in lower computer control cabinet 240, coil and pressure regulator by control module 220, generate the testing power supply that receptacle durability test standard specifies; Plug resets.
Socket X, Y-coordinate polarized plug that plug plug testing process: X, Y-axis stepping mechanism record according to PLC, correction " elevator speed " the test curve tables of data that Z axis stepping mechanism generates according to host computer carries out the Speed open-loop control of non-plug sub-line journey, and plug exports PLC look-at-me through proximity switch, proximity switch, proceeds to the displacement closed-loop control of correction " elevator speed " the test curve tables of data of non-plug sub-line journey; Plug withdrawal process and insertion process mirror image each other, without exception and before not arriving set point number at measured piece, program loop performs non-plug sub-line journey with plug sub-line journey until test and stop.
Claims (10)
1. a durability testing system for socket for domestic electric appliances, is characterized in that, system is by PC control device (100), and slave computer control device (200) and executable operations device (300) form;
PC control device (100) comprises industrial computer (101) and lower cabinet (102); Industrial computer (101) is placed in lower cabinet (102) top, connects the PLC of slave computer control device (200) through RS485 interface, and the built-in uninterrupted power source of lower cabinet (102) is connected with electrical network;
Slave computer control device (200) comprises display unit (210), control module (220), 3 axle points moving cell (230) and lower computer control cabinet (240); Display unit (210) is positioned at the top of slave computer control device (200), comprises the socket electrical quantity LED display (211) of test macro and the navigation LED display (212) of load setting; Control module (220) is positioned at the middle part of slave computer control device (200), comprises resistance adjustment module (221), adjustment of inductance module (222), work display lamp (223), alarm display lamp (224), debugging control switch (225), on/off switch (226), boost button (227), step-down button (228) and scram button (229);
Control module (220) is connected with lower computer control cabinet (240), regulate resistance, coil and pressure regulator in lower computer control cabinet (240), generate the testing power supply that receptacle durability test standard specifies, the electric parameter of testing power supply is presented on display unit (210) in real time;
3 axle points moving cell (230) comprise forward X-axis inching button (231), negative sense X-axis inching button (232), forward Y-axis inching button (233), negative sense Y-axis inching button (234), forward Z axis inching button (235), negative sense Z axis inching button (236), each button is connected with the PLC in lower computer control cabinet (240) respectively, after socket installation to be detected, obtain X, Y, Z tri-axle positional parameter of socket to be detected by three axle point moving cells;
Lower computer control cabinet (240) inside PLC, accepts industrial computer (101) instruction of PC control device by RS485 bus, export Analog control signal to driving stepper motor module;
Executable operations device (300) comprises latticed operator's console (310), gantry stand (320), X-axis stepping mechanism (330), Z axis stepping mechanism (340), Y-axis stepping mechanism (350), three-dimensional grips mechanism (360) and lower cabinet (370); Gantry stand (320) is arranged on latticed operator's console (310), and latticed operator's console (310) is placed on lower cabinet (370); X-axis stepping mechanism (330), Z axis stepping mechanism (340), Y-axis stepping mechanism (350) are connected with driving stepper motor module, respectively perform X, Y, Z axis to motion; Measured piece, by the three-dimensional technique for fixing of X, Y, Z, is fixed on latticed operator's console (310) by three-dimensional grips mechanism (360).
2. the durability testing system of a kind of socket for domestic electric appliances according to claim 1, it is characterized in that, described latticed operator's console (310) comprise adjustable support pin (311), lower shoe (312), latticed working plate (313), the y-axis stepper motor installing plate (314) of Y-axis stepping mechanism (350), the Y-axis worm couple mounting hole of Y-axis stepping mechanism (350) and parts of bearings (315), gantry stand (320) rail plate (316) and install dividing plate (317);
Latticed working plate (313), installation dividing plate (317) and lower shoe (312) are fixed into a rectangular frame by latticed operator's console (310) from top to bottom; Lower shoe (312) is fixed on adjustable support pin (311) by screw; Y-axis stepper motor installing plate (314), Y-axis worm couple mounting hole and parts of bearings (315) are individually fixed on the installation dividing plate (317) on right side; Two rail plates (316) of gantry stand (320) fix to clamp respectively installs between dividing plate (317) in two pieces, left and right.
3. the durability testing system of a kind of socket for domestic electric appliances according to claim 2, it is characterized in that, described gantry stand (320) comprises the X-axis stepper motor installing plate (321) of X-axis stepping mechanism (330), the rectangular mounting plate (322) of X-axis stepping mechanism (330), the rail plate (323) of X-axis stepping mechanism (330), the X-axis worm couple mounting hole of X-axis stepping mechanism (330) and parts of bearings (324), slide block (325) on gantry stand rail plate (316), slide block (326) on Y-axis worm couple, the installing plate (328) at Z-type installing plate (327) and gantry stand rail plate slide block (325),
The two pieces of Z-type installing plates (327) in left and right by screw from top to bottom respectively by the rectangular mounting plate (322) of X-axis stepping mechanism (330), the rail plate (323) of X-axis stepping mechanism (330), the installing plate (328) of the slide block (325) on the stand rail plate of gantry, slide block (325) on gantry stand rail plate (316) and the slide block (326) on Y-axis worm couple are fixed in aggregates, this entirety is fixed on Y-axis worm couple by the slide block (326) on Y-axis worm couple, y-axis stepper motor implements Y-motion through Y-axis worm couple, the mounting hole of X-axis worm couple and parts of bearings (324) are installed on the two pieces of Z-type installing plates (327) in left and right respectively, the installing plate (321) of X-axis stepper motor is fixed on left side Z-type installing plate (327).
4. the durability testing system of a kind of socket for domestic electric appliances according to claim 3, it is characterized in that, described X-axis stepping mechanism (330) comprises X-axis stepper motor (331), X-axis worm couple (332), the Z axis stepper motor installing plate (333) of Z axis stepping mechanism (340), the upper mounting plate (334) of Z axis stepping mechanism (340), the rail plate (335) of Z axis stepping mechanism (340), the lower installation board (336) of Z axis stepping mechanism (340), slide block (337) on X-axis worm couple (332) and the installation slide block (338) of proximity switch,
X-axis worm couple (332) is arranged on by shaft coupling in the rotating shaft of X-axis stepper motor (331), from top to bottom respectively by screw by Z axis stepper motor installing plate (333), the upper mounting plate (334) of Z axis stepping mechanism (340), the rail plate (335) of Z axis stepping mechanism (340), slide block (337) on X-axis worm couple (332) and the lower installation board (336) of Z axis stepping mechanism (340) fastening be one overall, forward X-axis inching button (231), the PLC of negative sense X-axis inching button (232) in lower computer control cabinet (240) controls X-axis stepper motor (331), X-axis worm couple (332) is driven to implement X-motion, PLC records X axis travel displacement, installing slide block (338) is arranged on rail plate (335), and its position can adjust according to the concrete size of test product and installation site.
5. the durability testing system of a kind of socket for domestic electric appliances according to claim 4, it is characterized in that, described Z axis stepping mechanism (340) comprises slide block (343), plug fixed device (344) and proximity switch (345) on Z axis stepper motor (341), Z-axis transmission worm screw (342), Z axis stepper motor (341);
Plug fixed device (344) fixes the corresponding plug of socket to be detected, proximity switch XS612B1PLA2 (345) is arranged on the side that installation slide block (338) is upper, induction metal plate is arranged on plug fixed device (344) of proximity switch, its lower edge flushes with edge under standard plug latch, the interrupting input end INT1 of output signal access lower computer control cabinet (240) the interior PLC of proximity switch;
Forward Z axis inching button (235), negative sense Z axis inching button (236) PLC in lower computer control cabinet (240) controls Z axis stepper motor (341), drives Z axis worm couple (342) to implement Z-motion; PLC records Z-axis direction travel displacement, according to the proximity switch installation parameter of user's input and test speed parameter, host computer generates " elevator speed " test curve tables of data of correction accordingly: the stepper motor umber of pulse of the stepper motor pulsed frequency table of the Speed open-loop control of non-plug sub-line journey, the displacement closed-loop control of plug sub-line journey; Non-plug sub-line journey is the travel displacement of plug Autonomous test initial point to proximity switch, and plug sub-line journey is the travel displacement of proximity switch to plug insertion socket when completing.
6. the durability testing system of a kind of socket for domestic electric appliances according to claim 5, is characterized in that described Y-axis stepping mechanism (350) comprises y-axis stepper motor (351) and Y-axis geared worm (352);
Forward Y-axis inching button (233), negative sense Y-axis inching button (234) PLC in lower computer control cabinet (240) controls y-axis stepper motor (351), drives Y-axis worm couple (352) to implement Y-motion, realize the motion of gantry stand (320) in Y-axis, PLC records Y-axis travel displacement.
7. the durability testing system of a kind of socket for domestic electric appliances according to claim 6, is characterized in that described three-dimensional grips mechanism (360) comprises eight cross fishtail bolts (361) and two panels elastic clamping sheet (362);
Every root cross fishtail bolt (361) is made up of a stud, two set screw and one piece of clamp with resilient material; The stud first half is column helicitic texture, and Lower Half is column smooth structure, and set screw is threadedly secured in the Lower Half of this bolt, and stud base is cross dovetail configuration, and clamp is fixed in set screw; Elastic clamping sheet (362) is a flat metal moulding, respectively there is a through hole at its two ends, cross fishtail bolt (361) through in addition fastening with spring shim and nut after through hole, be adjacent in the middle part of moulding measured piece part also for resilient material, in order to increase clamping force; Measured piece is fixed on any one grid of latticed working plate (313), eight cross fishtail bolts (361) are one group with two, respectively from X, Y-axis positive and negative two to clamping measured piece, ensure the clamping of measured piece X, Y direction, tightening set screw makes the resilient material face of clamp be close to the bottom mounting box of measured piece, fixing by eight cross fishtail bolts (361), ensure measured piece X, Y direction fastening; Two panels elastic clamping sheet (362) respectively by spring shim and fastening nuts on two groups of cross fishtail bolts (361) of Y direction, measured piece is tightly fixed between latticed working plate (313) and elastic clamping sheet (362), ensure the fixing of its Z-direction, thus realize the stability of three-dimensional clamping and the uniqueness of locus; In durability test process, the socket displacement that swapping process produces because of friction force stopped by three-dimensional clamping, and the test interruption that causes of displacement and secondary clamping; During the test of same model socket, the operation of crawl determination socket X, Y, Z coordinate parameters can be omitted.
8. the durability testing system of a kind of socket for domestic electric appliances according to claim 7, is characterized in that VB1-24MTPLC and YK2609MA driving stepper motor module selected by described slave computer control device; The RS485 port of VB1-24MT is connected with the RS485 port of industrial computer (101), accepts correction " elevator speed " curve data that host computer generates, carries out efficient non-plug sub-line journey Speed open-loop control; The interruptive port INT1 of the digital quantity signal access VB1-24MT of proximity switch (345), interrupt response program reads in the stepper motor umber of pulse of the sub-travel displacement of plug corresponding to proximity switch, plugs sub-travel displacement closed-loop control accurately; Forward X-axis inching button (231), negative sense X-axis inching button (232), forward Y-axis inching button (233), negative sense Y-axis inching button (234), the digital quantity signal of forward Z axis inching button (235), negative sense Z axis inching button (236) accesses digital quantity input port DI0, DI1, DI2, DI3, DI4 and DI5 of VB1-24MT respectively, point operation control X-axis stepping mechanism (330), Z axis stepping mechanism (340) and Y-axis stepping mechanism (350), determine socket X, Y, Z coordinate parameters; VB1-24MT analog output end AI0, AI1 access PU-, DR-of the first stepping motor drive module respectively, drive the X-axis stepper motor (331) of X-axis stepping mechanism; VB1-24MT analog output end AI2, AI3 access PU-, DR-of the second stepping motor drive module respectively, drive the y-axis stepper motor (351) of Y-axis stepping mechanism; VB1-24MT analog output end AI4, AI5 access PU-, DR-of the 3rd driving stepper motor module respectively, drive the Z axis stepper motor (341) of Z axis stepping mechanism.
9. one kind uses the High-efficiency consistency method of testing of socket for domestic electric appliances durability testing system as claimed in claim 1, it is characterized in that, speed ~ the time of receptacle durability test Z axis stroke, acceleration ~ time curve uses for reference " ideal speed curve " that elevator industry is praised highly, consider from the acceleration visual angle of plug and the acceleration and deceleration process of plug travel is divided into 7 stages: add accelerating sections, even accelerating sections, subtract accelerating sections, at the uniform velocity section, accelerating and decelerating part, even braking section, subtract braking section, and consider from the speed visual angle of plug, " ideal speed curve " is divided into again starting to accelerate, travel at the uniform speed and braking deceleration three sections, rise/retaining segment curve is specular, simultaneously whether contact with socket according to plug, test stroke and be divided into and plug sub-line journey and non-plug sub-line journey, testing efficiency depends on the plug speed of non-plug sub-line journey, and the plug speed of plug sub-line journey is then related to measuring accuracy, " ideal speed curve " has taken into account testing efficiency and measuring accuracy: the height of plug has tested the speed S
no-insertthe low S that tested the speed of displacement, plug
insertdisplacement,
Consider the gap error of Electrified Transmission error and mechanical drive pair and test the electrical equipment Parameters variation and mechanical wear error that cause for a long time, presence bit shift error ± Δ S (Δ S>0) in test stroke; With regard to the rigidity topworks stepper motor of test macro, the impact of Δ S on testing reliability, measuring accuracy is huge: there will be great pressure when even crushing socket or plug ,-Δ S during+Δ S, between plug and socket, plug does not insert socket by standard-required causes test result serious distortion, revise the plug opened loop control based on " ideal speed curve ": at from home S
insert+ Δ S place arranges proximity switch, this test macro Δ S=5mm;
Definition 1: the sub-travel displacement of non-plug of correction is S
no-insert-Δ S=125mm-5mm=120mm,
Definition 2: the sub-travel displacement of plug of correction is S
insert+ Δ S=25mm+5mm=30mm;
The plug control algolithm revising " ideal speed curve " is as follows:
During the motion of (a) plug insertion socket direction, calculate and store S
insertstepper motor pulsed quantity N0, N=N0 that+Δ S is corresponding,
The b sub-travel displacement S of non-plug that () is revised
no-insertwithin the scope of-Δ S, by the stepper motor pulsed frequency f of " ideal speed curve " correspondence, the speed of opened loop control plug,
The c sub-travel displacement S of plug that () is revised
insertwithin the scope of+Δ S, perform the closed loop control algorithm of displacement--read the stepper motor pulsed frequency f that " ideal speed curve " is corresponding, displacement closed-loop control N=N-f*Ts until N=0, f be the stepper motor pulsed frequency of corresponding ideal speed, Ts is the sampling period,
When the motion of socket direction extracted by () plug d, continue to use the control algolithm during motion of plug insertion socket direction.
10. use a High-efficiency consistency method of testing for socket for domestic electric appliances durability testing system as claimed in claim 5, it is characterized in that the permanance High-efficiency consistency detection method of receptacle is divided into: test prepares flow process and plug plug testing process;
Test prepares flow process: be fixed on latticed working plate (313) by three-dimensional grips mechanism (360) from X-axis, Y-axis, Z-direction by product to be tested, plug fixed device (344) fixes the corresponding plug of socket to be detected, Z axis stepping mechanism rail plate (335) is installed proximity switch (345), plug distance socket 5mm when making Plug contact proximity switch, host computer inputs the installation site of proximity switch;
Make plug insertion socket by 3 axle points moving cell (230), PLC records socket coordinate, and test initial point is to the Z axis travel displacement of proximity switch and the sub-travel displacement S of non-plug
no-insertz axis travel displacement when-Δ S, proximity switch to plug insertion socket completes plugs sub-travel displacement S
insert+ Δ S, host computer generates " elevator speed " test curve tables of data of correction accordingly: the stepper motor umber of pulse of the stepper motor pulsed frequency table of the Speed open-loop control of non-plug sub-line journey, the displacement closed-loop control of plug sub-line journey; Regulate resistance, coil and pressure regulator in lower computer control cabinet (240) by control module (220), generate the testing power supply that receptacle durability test standard specifies; Plug resets;
Socket X, Y-coordinate polarized plug that plug plug testing process: X, Y-axis stepping mechanism record according to PLC, correction " elevator speed " the test curve tables of data that Z axis stepping mechanism generates according to host computer carries out the Speed open-loop control of non-plug sub-line journey, and plug exports PLC look-at-me through proximity switch, proximity switch, proceeds to the displacement closed-loop control of correction " elevator speed " the test curve tables of data of plug sub-line journey; Plug withdrawal process and insertion process mirror image each other, without exception and before not arriving set point number at measured piece, program loop performs non-plug sub-line journey with plug sub-line journey until test and stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033975.4A CN103743992B (en) | 2014-01-24 | 2014-01-24 | The durability testing system of receptacle and High-efficiency consistency method of testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033975.4A CN103743992B (en) | 2014-01-24 | 2014-01-24 | The durability testing system of receptacle and High-efficiency consistency method of testing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103743992A CN103743992A (en) | 2014-04-23 |
| CN103743992B true CN103743992B (en) | 2015-12-30 |
Family
ID=50501027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410033975.4A Active CN103743992B (en) | 2014-01-24 | 2014-01-24 | The durability testing system of receptacle and High-efficiency consistency method of testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103743992B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569679B (en) * | 2015-01-07 | 2017-11-28 | 江苏大学 | A kind of unloaded Durable test system of electric tool and garden instrument |
| CN104597381B (en) * | 2015-01-20 | 2017-10-31 | 厦门大学 | The detection means and detection method of electric connector mechanical performance and electrical safety performance |
| CN105352464A (en) * | 2015-09-28 | 2016-02-24 | 芜湖顺成电子有限公司 | Detection device of specification of wire plug |
| CN106443234A (en) * | 2016-08-29 | 2017-02-22 | 安徽云图信息技术有限公司 | Electronic equipment interface plugging and unplugging test apparatus |
| CN107132449B (en) * | 2017-06-20 | 2023-03-24 | 漳州市玉山电子制造有限公司 | Socket test circuit |
| JP7002892B2 (en) * | 2017-09-08 | 2022-01-20 | 株式会社ミツトヨ | Control method of shape measuring device |
| JP2019049462A (en) * | 2017-09-08 | 2019-03-28 | 株式会社ミツトヨ | Shape measurement device control method |
| JP6932585B2 (en) * | 2017-09-08 | 2021-09-08 | 株式会社ミツトヨ | Control method of shape measuring device |
| CN107677394A (en) * | 2017-09-13 | 2018-02-09 | 莱茵技术-商检（宁波）有限公司 | A kind of temperature-sensing element (device) durability test equipment |
| CN107607306A (en) * | 2017-10-17 | 2018-01-19 | 苏州联正测试技术服务有限公司 | One kind plug durable test platform and its method of testing |
| CN108710042A (en) * | 2018-06-05 | 2018-10-26 | 哈尔滨工业大学 | One kind being used for electric connector calendar life simulation test device and test method |
| CN109444741A (en) * | 2018-11-22 | 2019-03-08 | 黄茂连 | A kind of DC motor rotor test equipment |
| CN109753052A (en) * | 2019-01-30 | 2019-05-14 | 王国荣 | A kind of elevator control cabinet test platform |
| CN110133332B (en) * | 2019-05-31 | 2022-05-06 | 国网江苏省电力有限公司电力科学研究院 | TTU plug structure |
| CN111060150B (en) * | 2019-12-05 | 2021-04-20 | 南京航空航天大学 | Motion carrier monitoring method based on MEMS acceleration sensor and air pressure sensor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090054527A (en) * | 2007-11-27 | 2009-06-01 | 앰코 테크놀로지 코리아 주식회사 | Test socket durability checking apparatus |
| CN201368902Y (en) * | 2009-03-12 | 2009-12-23 | 深圳出入境检验检疫局工业品检测技术中心 | Plug and trailing socket detecting device |
| CN202939234U (en) * | 2012-10-23 | 2013-05-15 | 北京中天荣泰科技发展有限公司 | Electrical connector insertion in/pulling out universal testing system |
-
2014
- 2014-01-24 CN CN201410033975.4A patent/CN103743992B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090054527A (en) * | 2007-11-27 | 2009-06-01 | 앰코 테크놀로지 코리아 주식회사 | Test socket durability checking apparatus |
| CN201368902Y (en) * | 2009-03-12 | 2009-12-23 | 深圳出入境检验检疫局工业品检测技术中心 | Plug and trailing socket detecting device |
| CN202939234U (en) * | 2012-10-23 | 2013-05-15 | 北京中天荣泰科技发展有限公司 | Electrical connector insertion in/pulling out universal testing system |
Non-Patent Citations (3)
| Title |
|---|
| 基于"理想速度曲线"测试插座类产品耐久性的方法;黄时炜 等;《家电科技》;20140930(第9期);38-41 * |
| 电梯理想速度曲线的研究与实现;翟玉文;《吉林化工学院学报》;19950331;第12卷(第1期);37-42 * |
| 计算机控制的电插头、插座测试系统;余永权 等;《广东工学院学报》;19900930;第7卷(第3期);23-31 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103743992A (en) | 2014-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103743992B (en) | The durability testing system of receptacle and High-efficiency consistency method of testing | |
| CN102155470B (en) | Automatic detection and debugging system and method of hydraulic valve | |
| CN104297678B (en) | Automatic testing device for stroke pressure of microswitch | |
| CN109143068B (en) | High-speed motor testing system with environment bin | |
| CN103115771A (en) | Speed reducer test device and speed reducer production line | |
| CN104897382A (en) | Computer aided fuel oil valve automatic detection system | |
| CN202614863U (en) | Electromagnetic hydraulic-valve detection apparatus | |
| CN105842609A (en) | Hardware circuit detecting device for control unit of diesel engine SCR system | |
| CN103776711B (en) | Way rub accuracy testing platform | |
| CN202645971U (en) | Analog test bed for air compressor | |
| CN205538191U (en) | Buchholz relay check -up auxiliary device | |
| CN202110107U (en) | Bituminous mixture low-temperature frozen breakage testing machine | |
| CN208239866U (en) | A kind of exerciser automatic electrical control system | |
| CN201689319U (en) | Field PLC debugging instrument | |
| CN203163986U (en) | Deceleration-machine test apparatus and deceleration-machine production line | |
| CN202024750U (en) | Environmental temperature protection device and three coordinate measuring machine | |
| CN101832957B (en) | Program control X-ray diffractometer | |
| CN209117817U (en) | A kind of circuit board testing tooling of PLC control | |
| CN204313733U (en) | A kind of auto parts and components flexible checking implement | |
| CN203838283U (en) | Electric appliance socket durability testing system | |
| CN106054113A (en) | Metering stability testing system for electric energy meter and testing method thereof | |
| CN203720245U (en) | System for automatically measuring counter electromotive force of motor | |
| CN104048873B (en) | A kind of low-pressure metering box connector Flexible change amount detecting device and method | |
| CN205805980U (en) | A kind of test system of blower fan | |
| CN203858093U (en) | Main shaft test stand |
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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170313 Address after: Hangzhou City, Zhejiang province 310007 Xiasha Road No. 300 Patentee after: Zhejiang Fangyuan Test Group Co., Ltd. Address before: Hangzhou City, Zhejiang province 310013 Xihu District Tianmushan Road No. 222 Patentee before: Zhejiang Quality Inspection Science Research Institute |