Utility model content
The purpose of this utility model is for above problem, design the power supply test equipment that a kind of automaticity is high, versatility is high, both solved manual testing's deficiency, solved again that the cost that Hi-pot test and conventional output dc voltage discrete testing cause is high, the problem of inefficiency.
The utility model is taked following technical scheme:
A kind of power supply automatic detecting equipment, it comprises control system, test macro, display system, load system and kinematic train, described control system is connected with test macro, display system, kinematic train respectively, described test macro connects respectively load system and display system, and described control system comprises PLC, enters plate detection, detection and localization, air cylinder driven, Hi-pot test and normal pressure test is switched, ejecting plate detects; Described test macro comprise MCU, test by or warning, A/D conversion, protection interface; described display system comprises human-computer interaction module and state display module; described load system comprises data sampling and simulate load, and described kinematic train comprises sensor and gear train.
Further technical scheme is: described Hi-pot test and normal pressure test are switched control circuit, has a shared test access in described control circuit, is connected with the solenoid valve for Hi-pot test and normal pressure test switching in described test access.
Further technical scheme is: in described test macro, have interface protective circuit.
Further technical scheme is: described test macro is surrounded by Single-chip Controlling test circuit, described Single-chip Controlling test circuit comprises scanning, the first scan period and the second scan period to sampled data, and the scanning of described sampled data took from for the second scan period.
Further technical scheme is: described human-computer interaction module comprises controls interactive mode and test interactive mode.
Further technical scheme is: described state display module comprises LED tri coloured lantern pattern, voice message pattern, screen display data pattern.
Further technical scheme is: described data sampling is taken from many jigsaw power panel simultaneously, is preferably 4 block power supply plates.
Further technical scheme is: sensor is photoelectric sensor, test electric inductor, metal sensor.
The utility model compared with prior art, has following beneficial effect: what adopted that PLC realizes power panel in conjunction with the design of control relay circuit enters plate, detection, location, the full-automatic action such as test automatically automatically; PLC has realized the integrated testing of Hi-pot test and the shared same passage of conventional output dc voltage test in conjunction with solenoid control; Control to test scan sampling spot in Single-chip Controlling test circuit, has realized the high precision of test data; The designing load in parallel of load system power panel, in conjunction with the design of test macro multi-group data serial ports, is realized 4 yoke plates and is tested simultaneously, has further improved production efficiency.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail:
A preferred embodiment of the present utility model:
As shown in Figure 1, a kind of power supply automatic detecting equipment, it comprises control system 1, test macro 2, display system 3, load system 4 and kinematic train 5, control system 1 is connected with test macro 2, display system 3, kinematic train 5 respectively, test macro 2 connects respectively load system 4 and display system 3, and control system 1 comprises PLC, enters plate detection, detection and localization, air cylinder driven, Hi-pot test and normal pressure test are switched; Test macro 2 comprise MCU, test by or warning, A/D conversion, protection interface, display system 3 comprises human-computer interaction module and state display module, load system 4 comprises data sampling and simulates load, kinematic train 5 comprises sensor and gear train.
The embodiment that another is more preferably of the present utility model:
Control system 1 principle of work and control procedure: as shown in Figure 1 and Figure 2, by PLC and relay subsidiary control loop, the switching that accurately realizes testing procedure and enter the functions such as plate, location, air cylinder driven, Hi-pot test, voltage tester, running status indication, ejecting plate, reset, when entering plate end, monitored after power panel, entering plate chain starts, when photoelectric sensor senses after first block of tested power supply, entering plate resistance lug-latch starts working, first block of tested power supply sent into district to be measured, after entering completely, entering plate resistance lug-latch resets, after test electric inductor senses that tested power supply operation puts in place, test dog catch is started working, fixing tested power supply, and the driving cylinder of load system is started working simultaneously, after metal sensor senses that load system operation puts in place, drive cylinder to quit work, PLC starts test macro by control signal, wherein, PLC controls solenoid valve and is switched to Hi-pot test port, by serial ports, start high voltage testing device, and start timing, if test result is bad after timing completes, drive Hi-pot test instrument to report to the police, if test result is qualified, controls solenoid valve and be switched to conventional vdct port, test macro passes through display system by test result and net result, LED tri-looks are reported to the police, voice message mode is indicated, tested rear cut-out input voltage, stop test, driving cylinder resets, ejecting plate dog catch resets, entering plate resistance lug-latch starts working, output chain and input chain are started working, tested power supply is fast with to enter plate chain separated, second Board Under Test enters simultaneously, start loop test.
The principle of work of test macro 2: as shown in Figure 3; the sampled data of obtaining from tested power supply 202 is transferred to testing host; by potentiometer by sampled data dividing potential drop; because image data may be because of problems such as probe loose contacts; cause the fluctuation of image data or bring electric current into; therefore; as Fig. 5; by design interface holding circuit 203; image data is carried out to pre-service; by A/D convertor circuit 204, adopt AD conversion chip MCP3008 to carry out data-switching, then translation data is input to MCU carries out data processing.Wherein, consider the access interface quantity of testing efficiency and single-chip microcomputer, selected powerful STM32F10XRX, can obtain maximum 16 tunnel sampled datas, by the scanning to each I/O mouth, sampled data with second scan period after test starting is tested, avoid causing because of the fluctuation of sampled data the deviation of test, measuring accuracy can reach 2 significant digits number, by the test specification of certain logical relation and setting, contrast again, obtain test result, be stored in corresponding register; Finally, after single-chip microcomputer information extraction, contrast, judge with the parameter of setting, the indication 205 of output test mode and voice message 206; As shown in Figure 4 b, test passes signal comes driving LED to show green by control S8050 triode Q1, relay, represents normal operation; As shown in Fig. 4 a, test failure signal shows redness and speech horn prompting " electric voltage exception " by S8050 triode Q2, relay driving LED, represents operation exception.
Load system principle 4: comprise data sampling and fictitious load.Utilize the principle of Ohm law, adopt resistive arrangement, make fictitious load, carry out AD data sampling, as shown in Figure 6 simultaneously.In the utility model, realize and test 4 block power supplies simultaneously, utilize principle of parallel, the load circuit of single supply is carried out to 4 groups of parallel connections, except the total current of the load system of flowing through is 4 times of veneer, still merchandiser board test is identical for the operating voltage loading and the duty of power supply, and test result also meets the requirements completely; Simultaneously, after the quantity of the tested power supply of single increases, the data volume of sampling also increases thereupon, therefore the data transmission between load system and test macro is expanded, select DB-25 Serial Port Line can guarantee the transmission of 20 data of at least 4 groups, realize the functional expansion of load system, improved testing efficiency.
Display system 3: comprise human-computer interaction module and state display module.Human-computer interaction module: the controlling of setting, operating procedure that comprises parameter setting, test pattern, human-computer interaction module has the interactive module of control and test interactive module, controls in interactive module and has automatic and manual control model, and automatic mode completes various actions by the control step of control system, manual mode, can select different combination of actions, as enter plate → cylinder operation → voltage tester etc. according to debugging needs, startup is provided simultaneously, stops, reset function, test interactive module, comprises the setting of the parameters of Hi-pot test and normal pressure test, to guarantee that between each action, coupling is good, there will not be action conflict to cause wrong report, state display module is realized the demonstration of operation conditions and the demonstration of operation result, state display module has LED tri coloured lantern pattern, voice message pattern, screen display data pattern, be specially after the data that display system receives single-chip microcomputer output, screen display data pattern is by the Product Status of test data and test, channel status is presented on interface intuitively, if test value is overproof, the state of test product, test channel state all can be in alarm condition, by voice message pattern reminding employees, confirm bad position, thereby reduced erroneous judgement, simultaneously, when red in LED tri coloured lantern pattern.
Kinematic train 5, comprises sensor and gear train, is carrying, transmission, the position point of whole tested test plate (panel), by motor, track, chain, dog catch etc., formed, and be the skeleton of whole equipment.
" embodiment " that spoken of in this manual, " another embodiment ", " embodiment " etc., the specific features, structure or the feature that refer in conjunction with this embodiment description are included at least one embodiment of the application's generality description.In instructions, a plurality of local appearance statement of the same race is not necessarily to refer to same embodiment.Furthermore, while describing a specific features, structure or feature in conjunction with arbitrary embodiment, what advocate is in conjunction with other embodiment, to realize this feature, structure or feature also to drop in scope of the present utility model.
Although the utility model is described with reference to a plurality of explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other modification and embodiments, and these are revised and within embodiment will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to the building block of subject combination layout and/or layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes will be also obvious.