CN205352665U - Auto electric sits basin comprehensive properties testboard - Google Patents
Auto electric sits basin comprehensive properties testboard Download PDFInfo
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- CN205352665U CN205352665U CN201520877406.8U CN201520877406U CN205352665U CN 205352665 U CN205352665 U CN 205352665U CN 201520877406 U CN201520877406 U CN 201520877406U CN 205352665 U CN205352665 U CN 205352665U
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Abstract
The utility model provides a host computer that auto electric sits basin comprehensive properties testboard by fixed measured piece and control the clamping rack of measured piece action, gathers, analysis signal and an electric cabinet constitutes, and wherein, clamping rack passes through the IO input/output end with electric cabinet and communication cable is electric is connected, and electric cabinet connects the host computer that carries out motion control the host computer is provided with the display, clamping rack is including the frame, the frame top is provided with the perpendicular loading part that takes off and land from top to bottom, and the correspondence of frame both sides links firmly die clamping cylinder, the sound detection device of fixed measured piece, vibration detection device, electric current and ripple memory function detecting device, hall memory detection device. The industry microphone detects sound, acceleration sensor detects vibration, current transmitter measuring current and ripple memory function, and the comparison circuit sum counter detects the hall memory function. This device is equipped with special silence room, and the function is comprehensive and the cost is relatively low, has fine market value.
Description
Technical field
This utility model belongs to automobile manufacturing field, sits basin combination property test desk particularly to motorcar electric.
Background technology
At automobile component performance detection field, existing detection scheme is generally and utilizes current transducer detection current of electric, comparison circuit counter electric circuit inspection Hall memory function, that is vibration and noise are not detected, there are the detection vibration of some companies and noise in current Europe, and there have relevant software and hardware to sell to be domestic.
Current detecting and Hall memory detection are general.Repeat no more.
In existing technology, the test platform of the DriveTest company of Germany adopts sensor contacts unit under test main frame, moved by component motor band dynamic component, vibration signal is converted to acoustical signal and enters system by sensor, data are analyzed processing by system, have namely only processed the acoustical signal converted.Also have the test software of Buddhist Ji Asia and Europe continent corporate investment research and development, main test vibration signal, then utilize software analysis vibration signal and vibration signal simulation is become acoustical signal, say, that this mode does not really collect acoustical signal.
The equipment of DriveTest company is owing to only having focused on the detection of sound, therefore, it is only applicable in car not contact the motor driving part part of human body, such as skylight etc., the parts such as seat etc. with human body close contact cannot be detected, the scope of application is too narrow, applicable surface is not enough, and its equipment needs to be equipped with high-quality headset, usually put on headset when detection by operator, remove, by ear, the sound listening sensor to transmit and participate in result judgement, this detection mode depends on experience and the subjective consciousness of tester, and the equipment cost of DriveTest is very high, separate unit is at 2,000,000 yuan, the reason that the said firm's cost is high is in that the technology that they grasp, domestic Ye You company copied, effect is less desirable；The test system of Fo Jiya then antithesis, tests vibration, but its acoustical signal calculates out from vibration signal, this is not actually genuine acoustical signal, easily causing the inaccurate of judgement, sound is two different systems with vibration for human body for ear, and its impact is also different.
Utility model content
For solving above-mentioned prior art Problems existing, the purpose of this utility model is in that to provide a kind of motorcar electric to sit basin combination property test desk, main utilization industry microphone detects sound, utilizes acceleration transducer detection vibration, utilizes current transducer to detect electric current and ripple memory function, utilizes comparison circuit sum counter detection Hall memory function.In order to detect acoustical signal and do not affected by environmental noise, this device need to be placed in special quiet room.The total cost of this equipment is about 500,000 yuan, far below the product of DriveTest company, and can detect vibration, sound, electric current, memory function parameter, and performance is substantially better than the software of existing Fo Jiya.
For reaching above-mentioned purpose, the technical solution of the utility model is:
A kind of motorcar electric sits basin combination property test desk, by fixing measured piece the clamping frame controlling measured piece action, gather, the host computer analyzing signal and the electric cabinet carrying out action control composition, wherein, clamping frame is electrically connected by IO input/output terminal and communication cable with electric cabinet, electric cabinet connects host computer, described host computer is provided with display, described clamping frame includes framework, described frame roof is provided with the loading component of landing vertically, framework both sides correspondence is fixed with the clamping cylinder of fixing measured piece, framework is additionally provided with sound detection device, vibration detection device, electric current and ripple memory function detecting device, Hall memory detection device.
Further, described clamping frame is stacked by two cuboid frameworks, upper frame width is shorter, upper frame shares two columns of one side with lower frame, upper frame and lower frame joint face are equipped with base plate, and base plate arranges slide rail, slide rail slides and is provided with the fixing plate of measured piece, clamping cylinder one end is hinged with base plate, and the other end is by the fixing measured piece of chuck thereon.
Further, the right angle of described framework is connected by girth member reinforcing.
Further, the erection of described clamping machine is placed in the quiet room with mute shock absorption effect.
Further, described sound detection device adopts industry microphone, is placed on movement parts side.
Further, described vibration detection device adopts acceleration transducer, under slide rail, is close to slide rail.
Further, described electric current and ripple memory function detecting device adopt current transducer, connect with motor.
Further, described Hall memory detection device adopts comparison circuit sum counter, and the voltage that Hall element in motor is launched is made a distinction by comparison circuit, it is simple to rolling counters forward.
Further, described data collecting system first passes through acceleration transducer LC01 and current sensor and electric seat the basin vibration of seat basin slide rail and motor current signal when doing predetermined action is acquired, and the signal of collection carries out preliminary signals filtering through programmable filter CM3504.The signal device after filtering gathered is sent in data acquisition card PCI4472 and PCI6221, application LabVIEW virtual instrument software reads the signal of data acquisition card and carries out further filtering and signal processing, obtains the result being consistent with requirement of system design at first.
Relative to prior art, the beneficial effects of the utility model are:
Adopting quiet room isolation outside noise, the sound making test is truer.
This utility model method for testing vibration reduces the external environment impact on vibration, noise testing.
All detection parameters of the present utility model all may be configured as optional parameters, is namely selected which parameter to need detection by the engineer having permission according to the feature of the product produced, and which parameter need not detect, and is so adapted to overwhelming majority automobile electric drive parts.Owing to different auto parts and components frame for movement is different, so installation way also can be different, therefore native system is formed i.e. frame for movement action control part and detection components of system as directed by two parts, and frame for movement action control part is mainly used in clamping action control, does not have versatility.But be available with software design patterns sequence of movement, so that software is adapted to different types of electric drive parts.Detection components of system as directed has versatility due to the project of detection, so this partial software has versatility.Namely native system is quasi-hardware and software platform equipment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is for sitting basin skeleton and clamping frame.
Fig. 3 is vibration-testing hardware connection figure.
Fig. 4 is that Multipexer changes public A/D correspondence pci6221 to industrial computer signal transition diagram.
Fig. 5 is independent A/D, the corresponding daynamic transformation schematic diagram of digital multi-channel conversion.
Fig. 6 is that current sensor is connected with motor.
Fig. 7 is that current sensor is connected with PCI-6221.
Fig. 8 is clamping cylinder structural representation.
Fig. 9 is vibrating sensor structural representation of air cylinder.
Wherein, 1-clamps frame, 2-clamping cylinder, 3-measured piece, 31-sound detection device, 32-vibration detection device, 33-electric current and ripple memory function detecting device, 34-Hall memory detection device, 4-IO and communication cable, 5-quiet room, 6-host computer, 7-electric cabinet, 8-loading system.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, technical solutions of the utility model are described in further detail:
As shown in Figure 1-2, a kind of motorcar electric sits basin combination property test desk, by fixing measured piece 3 the clamping frame 1 controlling measured piece action, gather, the host computer 6 analyzing signal and the electric cabinet 7 carrying out action control form, wherein, clamping frame 1 is electrically connected by IO input/output terminal and communication cable 4 with electric cabinet 7, electric cabinet 7 connects host computer 6, described host computer 6 is provided with display, described clamping frame 1 includes framework, described frame roof is provided with the loading component 8 of landing vertically, framework both sides correspondence is fixed with the clamping cylinder 2 of fixing measured piece, framework is additionally provided with sound detection device 31, vibration detection device 32, electric current and ripple memory function detecting device 33, Hall memory detection device 34.
Further, described clamping frame 1 is stacked by two cuboid frameworks, upper frame width is shorter, upper frame shares two columns of one side with lower frame, upper frame and lower frame joint face are equipped with base plate, and base plate arranges slide rail, slide rail slides and is provided with the fixing plate of measured piece, clamping cylinder 2 one end is hinged with base plate, and the other end is by the fixing measured piece 3 of chuck thereon.
Further, the right angle of described framework is connected by girth member reinforcing.
Further, described clamping frame 1 is arranged in the quiet room 5 with mute shock absorption effect.
Further, described sound detection device 31 adopts industry microphone, is placed on movement parts side.
Further, described vibration detection device 32 adopts acceleration transducer, under slide rail, is close to slide rail.
Further, described electric current and ripple memory function detecting device 33 adopt current transducer, connect with motor.
Further, described Hall memory detection device 34 adopts comparison circuit sum counter, and the voltage that Hall element in motor is launched is made a distinction by comparison circuit, it is simple to rolling counters forward.
Further, described data collecting system first passes through acceleration transducer LC01 and current sensor and electric seat the basin vibration of seat basin slide rail and motor current signal when doing predetermined action is acquired, and the signal of collection carries out preliminary signals filtering through programmable filter CM3504.The signal device after filtering gathered is sent in data acquisition card PCI4472 and PCI6221, application LabVIEW virtual instrument software reads the signal of data acquisition card and carries out further filtering and signal processing, obtains the result being consistent with requirement of system design at first.
The overall structure of this detection platform is made up of three parts:
One, fix driving member and control frame for movement and the electric control system of component actuation；
Two, gather, analyze the host computer of signal.
Three, the electric cabinet of action control is carried out.
Detecting device is placed in the quiet room with sound insulation and damping effect, and industrial computer and switch board are arranged on outside quiet room to be easy to operator and are operated and observe detection process.Being mounted with the fixture of fixing driving member in clamping frame, fixture clamps under cylinder action and unclamps.Securing acceleration transducer and noise transducer in frame, vibration and noise that driving member produces in motor process are gathered in quiet room.The action control of signal acquisition process and the display of testing result are responsible for by the switch board being placed in outside quiet room.
Owing to automobile driving member has various different mechanical mechanism, in order to make equipment have versatility as far as possible, detection system is separated design with IO input/output terminal motion control system by us, making detection system possess certain independence, the frame for movement of IO input and output end control system and clamping driving member is then different according to different types of driving member.IO input/output terminal action, by the IO card control in PLC or microcomputer, sends detection initiation command when needs detect to detection systems soft ware, decontrols mechanical part when detection terminates.The versatility of detection system and the motility of mounting and clamping system are so accomplished.
Detection specific operation process is as follows:
Driving member is put frame → press both hands and is started button → fixture action, system original position → closedown quiet room → driving member action → data acquisition → Data Analysis Services → outcome graphic display by operator.
The first step: reset key button after remodeling, platform will change direction；The sensor worked is platform direction identificating sensor (proximity switch of M12)；
Second step: put into by measured piece in fixture, the green indicating lamp starting push-button station is bright；The workpiece arranged is utilized to detect whether workpiece puts in place to level detection sensor (proximity switch)；
3rd step: both hands start, clamp, the green indicating lamp started on push-button station goes out；The sensor worked be cylinder to level sensor；
4th step: safety lock cylinders retract, declines if any load then load lift cylinder, and load is fallen on measured piece；The sensor worked be weight lift cylinder to level sensor and safety lock cylinder home position sensing；Note: the position of safety lock cylinder is in the rear side of weight lift cylinder；
5th step: acceleration transducer cylinder stretches out；The sensor worked be acceleration transducer cylinder to level sensor；
6th step: detection starts, and now software authority gives parameter testing software, test vibration, noise, electric current, memory function；During this period, the sensor worked is three current sensors, four acceleration transducers, two microphones, two laser range sensors, angular transducers；
7th step: detection terminates, stores data, and acceleration transducer cylinders retract, now software authority returns motion control software；The sensor now worked is acceleration transducer cylinder home position sensing；
8th step: delivery position gone to by motor；The sensor now worked is three groups of correlation photoelectric sensors on equipment, when the signal of sensor is low level, it was demonstrated that delivery position gone to by motor；
9th step: if any load, then original position is returned in load, and otherwise a flow process terminates.The device combination property quality testing to electric drive parts of research, the quality for the product that ensures to dispatch from the factory plays a key effect, and detection parameter meets testing requirement.
1, vibration and sound test request are met, vibration that acceleration transducer and microphone realize operating motor driving part part is sent and sound is utilized to detect, adopt the parameters such as kurtosis, RMS, LEQ, marginal testing or methods that parts carry out detection to judge, plant automation degree is high, fully meets the needs of component capabilities detection.
2, meet current detecting and memory function testing requirement, utilize current sensor detection direct current generator current precision to reach 0-10A (± 0.1A).And adopting the circuit such as comparison circuit, ripple count and the memory function of algorithm detection driving member, testing result meets requirement.
3, this product design is advanced, rational in infrastructure, it is possible to substitute import sophisticated equipment, and cheap.Compared with introducing import equipment, introducing this equipment is that enterprise saves large number quipments fund.
4, use over the past half year, basic fault-free.Till now, using this device is that enterprise creates considerable economic benefit.
The design of electrical system of detecting device:
The hardware components of native system includes PCI-4472, PCI-6221, MPA201, LC01, CM3504 etc..The vibration signal that work process is a basin is gathered by piezoelectric acceleration transducer LC0119, and the signal after collection is passed to CM3504 four-way program control filtering conditioning card and is filtered, and filtered signal is converted into digital signal by PCI-4472, passes to computer.MPA201 is mike, for the noise produced in acquisition testing process.The display of testing result is test data to be shown in graph form, because test is to adopt computer-controlled Auto-Test System, because detection number of signals is many, and it is continual real-time monitoring, so detection data need relevant management, data management includes the classification of data, storage, playback, and data are safely etc..The vibration-testing hardware catenation principle figure of system is as shown in Figure 3.Wherein, the pulse signal correspondence IO input and output end signal of hall sensing detection, ripple corresponding current sensor.This utility model adopts Virtual Analysis software that vibration signal is analyzed and process, signal is carried out pretreatment before the collected virtual instrument of vibration signal.What vibration signal collected after sensor is analogue signal, and after programmable filter and amplifier process, analogue signal is filtered and amplifies, but this signal can not be subsequently can by computer.For enabling the analog quantity such as vibration signal and current signal to be subsequently can by computer, it would be desirable to adopt data collecting card.One of main task of data collecting card has been A/D conversion, and it plays, in whole modernization detects, the pivotal role taken over from the past and set a new course for the future.General conventional capture card divides single channel and multichannel collecting two class, and the composition structure of multichannel collecting card is as shown in Figure 4, Figure 5.Wherein, Fig. 4 Multipexer changes public A/D correspondence pci6221 to the arrow of industrial computer；The corresponding dynamic data arrow of independent A/D, digital multi-channel conversion；
In detection process, it is often necessary to multiple signals are carried out data acquisition, this can be realized by multi-channel data acquisition board simultaneously.Multi-channel data acquisition board generally has two ways:
1. with Multipexer conversion (AMUX) of analog (A/D) transducer, as shown in Figure 4；
2. each passage independently adopts digital multi-channel conversion (DMUX) of analog (A/D) transducer, as shown in Figure 5.
Both modes are respectively arranged with its pluses and minuses: adopting the advantage sharing A/D converter is that passage cost is low, simple in construction.Its shortcoming is that each interchannel is poor if having time, and owing to being applied only for an analog-digital converter, conversion efficiency is low, therefore sample frequency is lower；When each passage is respectively adopted independent analog-digital converter, carrying out analog digital conversion due to multiple transducers, conversion efficiency is high simultaneously, and sample frequency is high, and each passage is changed simultaneously, eliminates the time difference required for each Channel-shifted, but relatively costly.System selects NIPCI-4472 dynamic signal acquisition card for the collection of vibration signal.This data collecting card is a capture card being engaged in high accuracy frequency domain measurement, input channel is integrated with piezoelectric type (IEPE) signal condition function, can be used for acceleration transducer and sound signal collecting, multichannel can be inputted signal and be digitized in 8 input channels simultaneously by NIPCI-4472.When needing the signal gathered higher than 8 tunnel, this board can realize the synchronization between PCI-4472 board.When 4472 boards and LabVIEW sound and vibration tool bag or other software analysis tools are used in conjunction with, the accurate measurement of various time and frequency can be carried out.
Current detection circuit designs: the measurement as electric current then selects NIPCI-6221 board to realize；The connection of current sensor as shown in Figure 6, for horizontal motor, realizes the rotating of horizontal motor by relay, and current sensor concatenates in circuit, and the connection of current sensor and PCI-6221 card is as shown in Figure 6.Fig. 7 is that current sensor is connected with PCI-6221；The electric current of direct current generator when the effect of current sensor is to measure work, and prevent from causing that because electric current is excessive direct current generator damages.The electric current recorded through current sensor is passed to PCI-6221 card and is acquired, and then shows in a computer.Programmable logic controller designs principally for field control, and its man machine interface is switch, button, display lamp etc. mainly.Not only having good adaptability, its expandability is also increasingly widely applied.The control system or the device that adopt PLC have the features such as reliability high, easily controllable, system flexible design, energy simulated field are debugged, good capacity of resisting disturbance.But PLC also has and not easily shows various curve, the shortcoming such as chart and Chinese character, and no user interface, not easily monitor.So, native system be designed with PLC as slave computer, perform effectively decentralised control reliably, selection can provide the computer of good man machine interface to carry out monitoring and the management of system as host computer, so both can guarantee that systematic function, system can be made again easy and simple to handle, it is simple to effective supervision of detection process.PLC and industrial computer are attached by Profibus bus, it is achieved PLC and the point-to-point communication of industrial computer upper and lower computer.Clamping cylinder structure as shown in Figure 8, is connected a rotatably flexible air cylinder device, the hinged holder of air cylinder device telescopic end by an angle bar being fixed on framework.Vibrating sensor air cylinder structure is as it is shown in figure 9, it is fixed in base plate, and sensor segments is concordant with slide rail straight up, sliding part by time carried out data acquisition by sensor.
Table 1 detection part information
| Sequence number | Operator | Total number of packages | Version number | Time |
| 5263 | 858 | 696 | 1 | 14:46:31 |
| 5264 | 858 | 697 | 1 | 14:48:29 |
| 5265 | 858 | 698 | 1 | 14:49:32 |
| 5266 | 858 | 699 | 1 | 14:50:16 |
| 5267 | 858 | 700 | 1 | 14:50:57 |
| 5268 | 858 | 701 | 1 | 14:51:40 |
| 5269 | 858 | 702 | 1 | 14:52:47 |
| 5270 | 858 | 702 | 1 | 14:53:04 |
| 5271 | 858 | 703 | 1 | 14:53:27 |
| 5272 | 858 | 703 | 1 | 14:54:02 |
| 5273 | 858 | 704 | 1 | 14:54:13 |
| 5274 | 858 | 704 | 1 | 14:54:53 |
| 5275 | 858 | 705 | 1 | 14:54:55 |
| 5276 | 858 | 706 | 1 | 14:55:40 |
| 5277 | 858 | 706 | 1 | 14:55:45 |
| 5278 | 858 | 707 | 1 | 14:56:19 |
| 5279 | 858 | 707 | 1 | 14:56:34 |
| 5280 | 858 | 708 | 1 | 14:57:00 |
| 5281 | 858 | 708 | 1 | 14:57:26 |
| 5282 | 858 | 709 | 1 | 14:57:43 |
| 5283 | 858 | 709 | 1 | 14:58:15 |
| 5284 | 858 | 710 | 1 | 14:58:24 |
| 5285 | 858 | 711 | 1 | 14:59:03 |
| 5286 | 858 | 711 | 1 | 14:59:06 |
| 5287 | 858 | 712 | 1 | 14:59:42 |
| 5288 | 858 | 712 | 1 | 14:59:56 |
| 5289 | 858 | 713 | 1 | 15:01:02 |
| 5290 | 858 | 714 | 1 | 15:01:49 |
| 5291 | 858 | 714 | 1 | 15:01:54 |
| 5292 | 858 | 715 | 1 | 15:02:29 |
| 5293 | 858 | 715 | 1 | 15:02:48 |
| 5294 | 858 | 716 | 1 | 15:03:10 |
| 5295 | 858 | 716 | 1 | 15:03:42 |
| 5296 | 858 | 717 | 1 | 15:03:54 |
| 5297 | 858 | 718 | 1 | 15:04:32 |
| 5298 | 858 | 718 | 1 | 15:04:39 6--> |
| 5299 | 858 | 719 | 1 | 15:06:44 |
| 5300 | 858 | 719 | 1 | 15:07:23 |
| 5301 | 858 | 720 | 1 | 15:07:25 |
Table 2 current detecting data
Table 3 vibration detection data
Table 4 noise testing data
In marginal testing, 0 represents that marginal testing passes through, and 1 represents that rotating forward marginal testing is defective, and 2 represent that reversion marginal testings are defective.
Above-mentioned data are the data under factory's normal operation circumstances, when car seat skeleton being detected on assembly line.
The above, be only detailed description of the invention of the present utility model, but protection domain of the present utility model be not limited thereto, any change expected without creative work or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with claims protection defined.
Claims (7)
1. a motorcar electric sits basin combination property test desk, it is characterized in that, by fixing measured piece the clamping frame controlling measured piece action, gather, the host computer analyzing signal and the electric cabinet carrying out action control composition, wherein, clamping frame is electrically connected by IO input/output terminal and communication cable with electric cabinet, electric cabinet connects host computer, described host computer is provided with display, described clamping frame includes framework, described frame roof is provided with the loading component of landing vertically, framework both sides correspondence is fixed with the clamping cylinder of fixing measured piece, framework is additionally provided with sound detection device, vibration detection device, electric current and ripple memory function detecting device, Hall memory detection device.
2. testboard according to claim 1, it is characterized in that, described clamping frame is stacked by two cuboid frameworks, upper frame width is shorter, and upper frame shares two columns of one side with lower frame, and upper frame and lower frame joint face are equipped with base plate, base plate arranges slide rail, sliding on slide rail and be provided with the fixing plate of measured piece, clamping cylinder one end is hinged with base plate, and the other end is by the fixing measured piece of chuck thereon.
3. testboard according to claim 2, it is characterised in that the right angle of described framework is connected by girth member and reinforces.
4. testboard according to claim 1, it is characterised in that the erection of described clamping machine is placed in the quiet room with mute shock absorption effect.
5. testboard according to claim 1, it is characterised in that described sound detection device adopts industry microphone, is placed on movement parts side.
6. testboard according to claim 1, it is characterised in that described electric current and ripple memory function detecting device adopt current transducer, connect with motor.
7. testboard according to claim 1, it is characterised in that described Hall memory detection device adopts comparison circuit sum counter, the voltage that Hall element in motor is launched is made a distinction by comparison circuit, it is simple to rolling counters forward.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300677A (en) * | 2015-11-05 | 2016-02-03 | 长春工业大学 | Automobile electric bidet comprehensive property test platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105300677A (en) * | 2015-11-05 | 2016-02-03 | 长春工业大学 | Automobile electric bidet comprehensive property test platform |
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Granted publication date: 20160629 Termination date: 20161105 |