CN101561471B - Vehicle instrument circuit board combined detection table and detection method thereof - Google Patents
Vehicle instrument circuit board combined detection table and detection method thereof Download PDFInfo
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Abstract
The invention discloses a vehicle instrument circuit board combined detection table and a detection method thereof. The detection table comprises an instrument circuit board combination on the detection table and is characterized by being internally provided with the instrument circuit board combination by the connection of a testing neilsbed and a testing signal source and a detection circuit composed through a testing neilsbed. The detection circuit is connected with an analog circuit board combination through an output interface of a testing desk. By adopting the technical proposal, the invention provides a complex equipment characterized by having the advantages of general use, standardization, multiple functions, convenient and reliable use and operation and exact output, realizes complex requirements on the compatibility and functions of products, leads a plurality of modes of switches, frequency and voltage and the like to be available to signal output selectively and realizes aplurality of parameter selection functions. The product is simple in structure and improves product reliability improved and simultaneously reduces product cost. The product improves the detection ef ficiency in the production process of instruments, reduces use cost and equipment cost investment and is convenient for the collinear production of multiple varieties or the quick shift among different teams and groups.
Description
Technical field
The invention belongs to the technical field of special inspecting equipment, specifically the present invention relates to a kind of vehicle instrument circuit board combined detection table and detection method thereof.
Background technology
Progress and development along with modern electronic technology, in the auto meter production run and the process of circulation to finished product and half-finished detection and test, become vast manufacturing enterprise and used the difficult problem that to face in the enterprise, particularly along with amount of product throughput and use amount increase fast, enterprise is to product detection and experimental technique have very urgent demand expeditiously, especially Functionality, quality and appealing design, valency are held concurrently, reliably, product demand is urgent efficiently, development of new is suitable for the type product has become common target.
Modern auto meter moves towards electronization and digitizing comprehensively, and along with vehicle becomes the requisite vehicles in the general common people family fast, the turnout of auto meter and use amount are very huge, quality requirements is also very high, life test after product detection, aging operation and the production in process of production becomes requisite program, particularly wiring board combination detection in process of production is absolutely to carry out, normally with magnifier one by one solder joint get a load of, find problems of welded quality, thereby workload is very huge.In order to improve the work efficiency in the production run and the reliability of working equipment, reduce unnecessary work mistake and erroneous judgement, some special inspecting equipments have been researched and developed, generally be to adopt the method for pure needle-bar test to check the welding quality of each solder joint, mainly be to change the welding quality of judging solder joint, thereby the equipment input is very huge by the current value of testing each solder joint.The method of also useful analog machine inspections is judged welding quality, be combined into single function specialized equipment as on streamline, having increased some standard signal sources and resistance source, as in order to adapt to the requirement of like product different parameters, signal source and resistance source are able to programme, and alarm lamp, illuminating lamp and hummer will be controlled respectively with the strong switch of qin.But such operation of equipment is time-consuming, poor reliability, and programmable equipment is used for, and cost just seems high especially on the streamline.Because equipment will carry out the programmed settings parameter before work, this trouble and unreliable that can seem when several kind conllinear are produced or when between different teams and groups, relieving, and equipment user is required that equipment is had higher cognition degree and debugging level, and equipment itself is owing to be programmable, all will carry out parameter setting before each the use, this just might influence the preparatory of instrument because of the precision that is provided with of error and equipment itself.Frequent parameter setting and adjustment can increase production cost again, reduce production efficiency.
In recent years, the fast development of whole-control system and electronic technology, Hyundai Motor is also increasing to the demand of electronic type or digital instrumentation, and all-electronic combination instrument wiring board welding and quality of welding spot are estimated the key that becomes enterprise-quality control.Thereby new electron controls technology and detection technique develop into that enterprise enhances product performance, quality and the key of winning the market.Vehicle instrument circuit board combined detection table is the production efficiency that is used for improving auto meter on the one hand, guarantees the quality and the stability of instrument product; Be production and the use cost that is used for saving enterprise on the other hand, improve the measuring accuracy of product, increase the additional function of product, realize the compound of multiple function.
In recent years, occurred a kind of needle-bar monitor station that utilizes industrial computer control and show on the international market, it mainly is to change by the current value of testing each solder joint to judge welding quality, and test point comprehensively but not directly perceived, and use cost is higher, and efficient is lower.And the checkout equipment of part by simulation test can only carry out the single variety test, can not carry out parameter and select, and it is a kind of product of preset parameter.The device fabrication cost and the use cost of these two kinds of methods are higher, and safeguarding and using also needs the operator that higher level is arranged, and equipment also has certain environmental requirement to environment for use.
Summary of the invention
Problem to be solved by this invention provide a kind of general, standard, multi-functional, use easy to operate, measure vehicle instrument circuit board combined detection table and detection method thereof accurately, to reach the detection efficiency that improves wiring board combination in the instrument production run, reduce use cost, reduce the equipment cost input, to be convenient to the production of many kinds conllinear, the time that minimizing equipment is adjusted and safeguarded, finally reduce production costs, improve the purpose of economic benefit of enterprises.
In order to solve the problems of the technologies described above, the technical scheme that the present invention takes is: a kind of vehicle instrument circuit board combined detection table, comprise the instrument circuit board combination that is positioned on the monitor station, it is characterized in that: be provided with in the described monitor station by the instrument circuit board combination of testing needle-bar, being connected with testing source and by testing the testing circuit that needle-bar constitutes, described testing circuit is connected with the combination of analog line plate by the test board output interface;
Described testing circuit, by the circuit in the logical instrument circuit board combination of testing needle bench grafting, the welding quality of electronic component detected during upward the combination instrument module made up instrument circuit board by the combination of analog line plate.
A kind of vehicle instrument circuit board combined detection table, described testing circuit, comprise power module, frequency signal module, measuring resistance source, output control module, microprocessor, frequency selector composition, the input end of microprocessor is connected with frequency selector, power module, and output end of microprocessor is connected with voltage output interface J4 with Frequency Output Interface Circuit J3 by output control module, frequency signal module; Described output control module also is connected with the measuring resistance source.
A kind of vehicle instrument circuit board combined detection table, described output control module is made up of reverse drive chip U3, U4, reverse drive chip U3, U4 input end are connected with microprocessor, and reverse drive chip U3, U4 output terminal are connected with the output control interface by relay DY, resistance.
A kind of vehicle instrument circuit board combined detection table, described frequency selector is connected with microprocessor by interface J14, microprocessor is connected with update routine interface operable JT with read-write, and drives display module, display operation process and operating parameter by the LCD display interface.
A kind of vehicle instrument circuit board combined detection table, described test needle-bar is made up of wiring board integrated positioning template, depression bar, needle-bar pressing plate, guide pole, needle-bar support, the needle-bar support is installed in a side of casing, guide pole and needle-bar support and casing link, the needle-bar pressing plate is sleeved on the depression bar and is affixed with depression bar, one side of needle-bar pressing plate is stuck on the guide pole, and needle connector is installed on the needle-bar pressing plate.
A kind of vehicle instrument circuit board combined detection table is characterized in that: described microprocessor is a single-chip microcomputer, and model is ATMEGA16L.
A kind of detection method of vehicle instrument circuit board combined detection table is characterized in that, this method comprises the following steps;
1) power module provides 5V power supply to microprocessor, and according to the standard frequency that outside 8MHz crystal oscillator provides, microprocessor is according to setting frequency output control signal and the frequency signal that order and frequency selector are set, and described output control signal is a frequency signal; Perhaps output signal is the measuring resistance signal; Perhaps exporting control signal is switching signal; The perhaps way of output of the combination in any of frequency signal, resistance signal and switching signal;
2) depress depression bar, two group of 40 needle connector on the needle-bar pressing plate, tested measuring point is gone up in the combination of function Displaying Meter and wiring board coupled together, the components and parts welding quality that electric current and change in voltage judgement wiring board make up on the indicating status by overview function Displaying Meter respectively and reometer and the voltage table;
3) described microprocessor is by the work of drive control module pilot relay, control criterion resistance source or connecting and disconnecting of the circuit, by the output control interface, external measuring resistance signal or switching signal are provided, resistance output is switched between a high position, interposition or low level, observe the operation conditions of the combination instrument that is connected with the combination of analog line plate respectively or alarm lamp, illuminating lamp, hummer in the combination instrument are switched according to setting order between Push And Release;
4) frequency selector is selected frequency signal, by code switch the frequency that presets in the program is selected; Processing signals handled and sends by microprocessor to data, by frequency signal module medium frequency output interface J3 output frequency signal, observe the operation conditions of the combination instrument that is connected with the combination of analog line plate respectively.
The present invention adopts technique scheme, a kind of general, standard, multi-functional is provided, use easy to operate, reliable, output compositeness equipment of new generation accurately, improved the cost performance of vehicle instrument circuit board combined detection table, realized compositeness requirement, but made multiple modes such as signal output selector switch, frequency, voltage, and realized multiple parameter selection function the compatibility and the function of product, product structure is simple, reduces cost of products when having improved product reliability.And this product improved instrument production run detection efficiency, reduce use cost, reduce the equipment cost input, be convenient to the production of many kinds conllinear or fast turnaround (FTA) between different teams and groups, reduced the time cost of equipment adjustment and maintenance as much as possible, the final production cost that uses enterprise that reduces improves economic benefit of enterprises.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments;
Fig. 1 is a vehicle instrument circuit board combined detection table circuit structure block diagram of the present invention;
Fig. 2 is a vehicle instrument circuit board combined detection table structural representation of the present invention;
Fig. 3 is a test signal source circuit structure block diagram shown in Figure 1;
Fig. 4 is a testing source circuit theory synoptic diagram shown in Figure 1;
In Fig. 1 ~ Fig. 4,1, power module; 2, microprocessor; 3, output control module; 4, measuring resistance source; 5, frequency signal module; 6, frequency selector; 7, function Displaying Meter; 8, reset switch; 9, casing; 10, test board output interface; 11, testing circuit; 12, instrument circuit board combination; 13, wiring board integrated positioning template; 14, test needle-bar pressing plate; 15, depression bar; 16, guide pole; 17, needle-bar support; 18, test needle-bar; 19, testing source; 20, analog line plate combination.
Embodiment
As shown in Figure 1 and Figure 2, a kind of vehicle instrument circuit board combined detection table, comprise the instrument circuit board combination 12 that is positioned on the monitor station, be provided with in the described monitor station by the instrument circuit board combination 12 of testing needle-bar 18, being connected with testing source 18 and by testing the testing circuit 11 that needle-bar 18 constitutes, described testing circuit 11 is connected by test board output interface 10 and analog line plate combination 20.Test needle-bar 18 is made up of wiring board integrated positioning template 13, depression bar 15, needle-bar pressing plate 14, guide pole 16, needle-bar support 17, needle-bar support 17 is installed in a side of casing 9, guide pole 16 links with needle-bar support 17 and casing 9, needle-bar pressing plate 14 is sleeved on the depression bar 15 and is affixed with depression bar 15, one side of needle-bar pressing plate 14 is stuck on the guide pole 16, and needle connector is installed on the needle-bar pressing plate 14.A total power switch and frequency selector 6 are housed on the monitor station panel, the function Displaying Meter 7 that a power lead, main fuse and 40 needle connectors are connected is housed on the backboard.One side of function Displaying Meter 7 is provided with reset switch 8, is the test needle-bar 18 of measurement circuit plate combination on the platen.Wiring board integrated positioning template 13 is put in tested instrument circuit board combination 12, depress depression bar 15 by the circuit in the 18 connection instrument circuit board combinations 12 of test needle-bar, by wire harness detected wiring board is connected with signal controlling module, needle-bar and function Displaying Meter interface circuit, detects by the welding quality of combination instrument module in the combination 20 of analog line plate to electronic component in the instrument circuit board combination 12.
As shown in Figure 3, Figure 4, Fig. 3 is the testing source 19 circuit structure block diagrams in the testing circuit 11, comprise power module 1, frequency signal module 5, measuring resistance source 4, output control module 3, microprocessor 2, frequency selector 6 compositions, microprocessor 2 is a single-chip microcomputer, and model is ATMEGA16L.The input end of microprocessor 2 is connected with frequency selector 6, power module 1, provides the power module 1 of power supply mainly to be made up of 7805 three terminal regulator U1 and auxiliary circuit to microprocessor 2.Power module 1 is received Switching Power Supply in the testing table, is instrumentation voltage by Switching Power Supply with outside 220V voltage transition.Microprocessor 2 output terminals are connected with voltage output interface J4 with Frequency Output Interface Circuit J3 by output control module 3, frequency signal module 5; Described output control module 3 also is connected with measuring resistance source 4.Output control module 3 is made up of reverse drive chip U3, U4, and reverse drive chip U3, U4 input end are connected with microprocessor 2, and reverse drive chip U3, U4 output terminal are connected with the output control interface by relay DY, resistance.Control criterion resistance source 4 or connecting and disconnecting of the circuit provide external measuring resistance signal or switching signal.
Described frequency selector 6 is connected with microprocessor 2 by interface J14, and microprocessor 2 is connected with update routine interface operable JT with read-write, and drives display module, display operation process and operating parameter by the LCD display interface.Microprocessor U2 is according to the selection of frequency selector 6, frequency selector 6 is 8421 code switchs, and the frequency that presets in the program is selected, and 2N5551 exports frequency signal by transistor, realize different frequency signals output control, and by Frequency Output Interface Circuit J3 output frequency signal.Observe the running status of speedometer, tachometer gage.The model of chip for driving U3, U4 is ULN2003APG.Instrument circuit board combined detection table, by needle-bar and the combination of measurement circuit plate, be connected with function Displaying Meter 7, testing source 19 output meter working control signals, the state of overview function Displaying Meter 7 is by the quality of voltage table on the needle-bar panel and reometer displayed value intuitive judgment wiring board.
As Fig. 1～shown in Figure 4, the detection method of vehicle instrument circuit board combined detection table, this method comprises the following steps;
1) power module 1 provides 5V power supply to microprocessor 2, the standard frequency that provides according to outside 8MHz crystal oscillator, microprocessor 2 is according to setting frequency output control signal and the frequency signal that order and frequency selector 6 are set, and described output control signal is a frequency signal; Perhaps output signal is the measuring resistance signal; Perhaps exporting control signal is switching signal; The perhaps way of output of the combination in any of frequency signal, resistance signal and switching signal.
2) depress depression bar 15, two group of 40 needle connector on the needle-bar pressing plate 14, function Displaying Meter 7 is gone up tested measuring point with the wiring board combination couple together, the components and parts welding quality that electric current and change in voltage judgement wiring board make up on the indicating status by overview function Displaying Meter respectively and reometer and the voltage table.
3) described microprocessor 2 is by drive control module 3 pilot relay DY work, control criterion resistance source 4 or connecting and disconnecting of the circuit, by the output control interface, external measuring resistance signal or switching signal are provided, resistance output is switched between a high position, interposition or low level, observe respectively and make up the operation conditions of 20 combination instruments that are connected with the analog line plate or alarm lamp, illuminating lamp, hummer in the combination instrument are switched according to setting order between Push And Release.
4) 6 pairs of frequency signals of frequency selector are selected, and by code switch the frequency that presets in the program are selected; Processing signals is handled and sent to 2 pairs of data of microprocessor, by frequency signal module 5 medium frequency output interface J3 output frequency signals, observes the operation conditions with analog line plate combination 20 combination instruments that are connected respectively.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (7)
1. vehicle instrument circuit board combined detection table, comprise the instrument circuit board combination (12) that is positioned on the monitor station, it is characterized in that: be provided with the testing circuit (11) that is made of test needle-bar (18), testing source (19) instrument circuit board combination (12) in the described monitor station, wherein testing source (19) is connected with instrument circuit board combination (12) by test needle-bar (18);
Described testing circuit (11) by the circuit of testing in needle-bar (18) the connection instrument circuit board combination (12), is gone up the combination instrument module by analog line plate combination (20) welding quality that instrument circuit board makes up (12) middle electronic component is detected.
2. a kind of vehicle instrument circuit board combined detection table according to claim 1, it is characterized in that: described testing source (19) comprises power module (1), frequency signal module (5), measuring resistance source (4), output control module (3), microprocessor (2), frequency selector (6), the input end of microprocessor (2) is connected with frequency selector (6), power module (1), and microprocessor (2) output terminal is connected with voltage output interface J4 with the Frequency Output Interface Circuit J3 of frequency signal module (5) by output control module (3); Described output control module (3) also is connected with measuring resistance source (4).
3. a kind of vehicle instrument circuit board combined detection table according to claim 2, it is characterized in that: described output control module (3) is made up of reverse drive chip U3, U4, reverse drive chip U3, U4 input end are connected with microprocessor (2), and reverse drive chip U3, U4 output terminal are connected with the output control interface by relay DY, resistance.
4. a kind of vehicle instrument circuit board combined detection table according to claim 2, it is characterized in that: described frequency selector (6) is connected with microprocessor (2) by interface J14, microprocessor (2) is connected with update routine interface operable JT with read-write, and by LCD display interface driving display module, display operation process and operating parameter.
5. a kind of vehicle instrument circuit board combined detection table according to claim 1, it is characterized in that: described test needle-bar (18) is by wiring board integrated positioning template (13), depression bar (15), needle-bar pressing plate (14), guide pole (16), needle-bar support (17) is formed, needle-bar support (17) is installed in a side of casing (9), guide pole (16) links with needle-bar support (17) and casing (9), it is last and affixed with depression bar (15) that needle-bar pressing plate (14) is sleeved on depression bar (15), one side of needle-bar pressing plate (14) is stuck on the guide pole (16), and needle connector is installed on the needle-bar pressing plate (14).
6. according to claim 2 or 3 or 4 described a kind of vehicle instrument circuit board combined detection tables, it is characterized in that: described microprocessor (2) is a single-chip microcomputer, and model is ATMEGA16L.
7. the detection method of a vehicle instrument circuit board combined detection table according to claim 1 is characterized in that, this method comprises the following steps;
1) power module (1) provides 5V power supply to microprocessor (2), the standard frequency that provides according to outside 8MHz crystal oscillator, microprocessor (2) is according to setting frequency output control signal and the frequency signal that order and frequency selector (6) are set, and described control signal is a frequency signal; Perhaps control signal is the measuring resistance signal; Perhaps control signal is a switching signal; Perhaps control signal is the combination in any of frequency signal, measuring resistance signal and switching signal;
2) depress depression bar (15), last two group of 40 needle connector of needle-bar pressing plate (14) gone up tested measuring point with the combination of function Displaying Meter (7) and instrument circuit board and coupled together, the components and parts welding quality that electric current and change in voltage judgement instrument circuit board make up on the indicating status by overview function Displaying Meter respectively and reometer and the voltage table;
3) described microprocessor (2) is by output control module (3) pilot relay DY work, control criterion resistance source (4) or connecting and disconnecting of the circuit, by the output control interface, external measuring resistance signal or switching signal are provided, resistance output is switched between a high position, interposition or low level, observe the operation conditions of the combination instrument that is connected with analog line plate combination (20) respectively or alarm lamp, illuminating lamp, hummer in the combination instrument are switched according to setting order between Push And Release;
4) frequency selector (6) is selected frequency signal, and microprocessor (2) is selected the frequency that presets in the program according to the selection of frequency selector (6); Frequency selector (6) is 8421 code switchs, processing signals handled and sends by microprocessor (2) to data, by frequency signal module (5) medium frequency output interface J3 output frequency signal, observe the operation conditions of the combination instrument that is connected with analog line plate combination (20) respectively.
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| CN2009101168920A CN101561471B (en) | 2009-05-27 | 2009-05-27 | Vehicle instrument circuit board combined detection table and detection method thereof |
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| CN2009101168920A CN101561471B (en) | 2009-05-27 | 2009-05-27 | Vehicle instrument circuit board combined detection table and detection method thereof |
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| CN101561471B true CN101561471B (en) | 2011-02-16 |
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| CN101788621B (en) * | 2010-03-19 | 2011-11-23 | 北京经纬恒润科技有限公司 | Off-line detecting equipment for automobile electrical appliance system of automobile production line |
| CN104535849A (en) * | 2014-10-20 | 2015-04-22 | 北汽福田汽车股份有限公司 | Switch module and combined instrument test system with switch module |
| CN104407283A (en) * | 2014-12-10 | 2015-03-11 | 上海亚虹模具股份有限公司 | Device and method for automatically detecting hidden damage of circuit board |
| CN107677954A (en) * | 2017-09-30 | 2018-02-09 | 航天科技控股集团股份有限公司 | A kind of automobile instrument digital quantity parallel detecting method and system |
| CN113917308A (en) * | 2020-10-16 | 2022-01-11 | 北京精密机电控制设备研究所 | Automatic test platform of printed circuit board |
| CN114490477B (en) * | 2022-01-28 | 2024-05-14 | 重庆惠科金扬科技有限公司 | Interface switching circuit, method, liquid crystal display screen and storage medium |
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| CN2344780Y (en) * | 1998-07-28 | 1999-10-20 | 于永洋 | Multifunctional circuit tester for automobile |
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