CN103837299B - A kind of torque spanner automatic checkout system and detection method - Google Patents
A kind of torque spanner automatic checkout system and detection method Download PDFInfo
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- CN103837299B CN103837299B CN201410131583.1A CN201410131583A CN103837299B CN 103837299 B CN103837299 B CN 103837299B CN 201410131583 A CN201410131583 A CN 201410131583A CN 103837299 B CN103837299 B CN 103837299B
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Abstract
The invention discloses a kind of torque spanner automatic checkout system and detection method thereof, comprise standard torquemeter, work top, topworks and electric control system, described standard torquemeter is connected with electric control system by signal wire, and described electric control system applies moment of torsion by driving servomotor to topworks; Described topworks comprises the planetary reducer be arranged in deceleration rack, be fixed on the fixed guide on work top and the rail plate be arranged on fixed guide and slide damper; Described electric control system comprises the manual operating platform being arranged on electrical control cabinet under work top and industry control rack, being fixed on display on work top and support and being arranged on front side of work top; The present invention has researched and developed a kind of torque spanner detection system of precise and high efficiency, the torque value suffered by this spanner detected in real time, and this value is sent to electric-control system, drives servomotor, drives reductor to apply moment of torsion.
Description
Technical field
The present invention relates to a kind of torque spanner automatic checkout system and detection method, can be used for the automatic Verification of torque spanner, calibration and test.
Background technology
Torque spanner a kind ofly tightens measurement instrument with torque measuring mechanism, and it is for fastening screw screw bolt and nut, and can measure torque value when tightening, and is therefore a kind of important utensil controlling assembly precision; According to used power source, torque spanner is generally divided into manual, electronic, the pneumatic and large class of hydraulic pressure four; Wherein manual torque spanner because of its structure simple, the reason such as cheap and easy to use, application surface is the widest.
Along with China's industrial expansion, industrial technical level is more and more higher, also more and more higher to the requirement of product quality, and this makes in production assembling process also more and more harsh to the requirement of assembly technology; Therefore, in recent years, the utilization of torque spanner in the industries such as Mould Machining, automobile making, communications and transportation and refitting manufacture is more and more extensive, and its quantity also goes up year by year.Torque spanner, as measurement instrument, must regularly exercise supervision to it and calibrate, so there is huge detection demand.
Torque spanner calibration equipment is in the past nearly all manual detecting device for determining torque of spanner.This device is made up of modules such as handwheel, screw mandrel (reductor), arm lever, standard torquemeter and single-chip microcomputer data actuation usually; Rely on manpower, shake handwheel, drive screw mandrel (reductor) to rotate, thus arm lever is rotated, apply moment of torsion to tested torque spanner, this torque value is arrived by single-chip microcomputer system acquisition by standard torquemeter, can record peak value and pursuit gain etc.Although the calibrating instrument structure of the type is simple, cheap, there is following deficiency:
(1), labour intensity loads greatly at every turn and must rotate handwheel by manpower and come, and when examining and determine wide range torque spanner (such as 3000Nm), handwheel is very heavy, needs testing person to possess very large arm strength and very strong endurance.
(2), indicating value poor repeatability, the error of indication be when examining and determine peaking or predetermined torque value greatly at every turn, and the differences such as must stop operating handwheel, and testing person is different, and operating habit is different, and individual's reflection speed is different, all can bring gauging error.
(3) the single range that, such calibrating instrument of function singleness often adopts is arranged, an i.e. calibrating instrument, an only configuration moment of torsion regulator, if want the calibrating meeting all torque spanners in 10Nm ~ 3000Nm range section, so must configure a series of calibrating instrument, purchase total price high, take testing laboratory space large.
(4), magnitude tracing inconvenience adopts Single Chip Microcomputer (SCM) system usually due to this type device, not independent adjustable secondary instrument, can only remove the standard torquemeter on device, independent censorship, its cable splice does not often mate with the instrument of testing agency, connects inconvenience and can introduce error.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency existing in prior art, a kind of torque spanner automatic checkout system and detection method of precise and high efficiency are provided.
In order to realize foregoing invention object, the invention provides following technical scheme:
A kind of torque spanner automatic checkout system, comprise standard torquemeter 7, work top 11, topworks and electric control system, described standard torquemeter 7 is connected with electric control system by signal wire, and described electric control system applies moment of torsion by driving servomotor 13 pairs of topworkies.
Described topworks comprises the planetary reducer 12 be arranged in deceleration rack 9, be fixed on the fixed guide 6 on work top 11 and the rail plate 14 be arranged on fixed guide 6 and slide damper 4;
Described servomotor 13 is connected with planetary reducer 12 by transmission shaft, planetary reducer 12 is by connecting bushing 72 and through work top the bolt be connected with planetary reducer top is vertically mounted on work top 11 times, and connecting bushing 72 top connects the standard torquemeter 7 be vertically disposed on work top 11; Described detected torque spanner 5 one end is fixed on standard torquemeter 7, and the other end is placed on rail plate 14, and standard torquemeter 7 and rail plate 14 have the fixing fixed part being detected torque spanner 5.
Described electric control system is arranged in electrical control cabinet 1 under work top 11 and industry control rack 10, and electric control system also comprises the display be fixed on work top 11, be arranged on manual operating platform 2 on front side of work top.
Industrial computer is equiped with in described industry control rack 10, described industrial computer and servomotor 13, servo controller, reactor, wave filter, PLC, data collecting card and the contactor electric control system in series be installed in electrical control cabinet 1, and be connected with standard torquemeter 7 and display by signal wire.
Described standard torquemeter 7 is made up of torque sensor 71 and accurate secondary instrument, and the torque data collected is passed to torque sensor 71 by described secondary instrument, and data are passed to the industrial computer of electric control system by torque sensor by signal wire.
Described standard torquemeter 7 has the specification of 6 kinds of different ranges, and range covers 5Nm ~ 3000Nm.
Described slide damper 4 is provided with can the little supporting plate that moves up and down of vertical direction, described slide damper 4 and little supporting plate all on be designed with tie down screw 15.
Described work top 11 is integral plates that one piece of thickness is more than or equal to 20mm.
Described rail plate 14 is T-shape structural design.
As preferred version of the present invention, described servomotor 13 to be connected with planetary reducer 12 by transmission shaft and to load topworks, adopts the wheel shaft load mode that accuracy is higher, adds the precise hard_drawn tuhes in loading procedure.
As preferred version of the present invention, described standard torquemeter 7 has the specification of 6 kinds of different ranges, range covers 5Nm ~ 3000Nm, by the unique design of torque sensor 71 with switching axle sleeve 72, can change by fast insert-pull, convenient and swift, improve accuracy of detection, detect broad covered area, work efficiency improves greatly.
As preferred version of the present invention, described slide damper 4 is provided with can the little supporting plate that moves up and down of vertical direction, described slide damper 4 and little supporting plate all on be designed with tie down screw 15; Slide damper can regulate the position of lateral stressed point in real time, and the little supporting plate of design on slide damper 4 can be mixed dynamic under in the vertical direction, ensures that tested spanner is in horizontality; Slide damper and little supporting plate are all designed with tie down screw, locate for quick locking.
As preferred version of the present invention, described rail plate 14 designs for T-shape, has very high bending resistance twisting strength, and structure is simple, and easy making process is easy to loading and unloading, and unlike spherical guide, need meticulous maintenance.
Described detected torque spanner 5 when mounted, need adjust the height of the little supporting plate in slide damper 4, and ensure that detected torque spanner is parallel with work top, the cylinder of slide damper leans against the loading groove place of torque spanner.
The concrete grammar that the present invention realizes automatically detecting torque spanner is: after being in place by described detected torque spanner 5, standard torquemeter 7 can detect the torque value suffered by this spanner in real time, and this value is sent to electric-control system, drive servomotor 14, reductor is driven to apply moment of torsion, when arriving the torque value preset, motor is in low-speed motion mode to keep default applying value, if capture peak value, Self-tipping gets back to zero point.
Described electric-control system drives the process of servomotor, has been come by the preset mode on industrial computer.
Described preset mode mainly comprises presetting system, indicating value style, data management, data maintenance, systematic parameter five functional modules, the overall process that the manual torque spanner covered detects.Peak value is had to catch and Steam Generator in Load Follow two kinds of algorithms, respectively corresponding presetting system and indicating value style two kinds of test models.
Presetting system pattern is mainly used in the detection of presetting system torque spanner, and under this pattern, system can according to the change of indicating value, and automatic decision also catches peak value, and then Self-tipping is to zero point, automatically completes a loaded cycle; Detect data by oneself, directly in certificate format, draw the error of indication, the performance assessment criteria such as indicating value repeatability.User also can set cycle index arbitrarily, without the need to manual intervention.
Indicating value style pattern is mainly used in the detection of the instruments such as Digital-display torque spanner, pointer torque spanner, multiplier and torque sensor.User can freely preset some load(ing) points, and presets the retention time of load when arriving preset, so that user reads the indicating value on torque spanner digital display or on scale, and by its input system; System also establishes equipment management data storehouse, facilitates user to inquire about the various information of tested equipment.
Data processing: after load adds and unloaded, can enter data processing module, the data of this detection have processed, only need fill in the relevant informations such as censorship unit, product specification, after preservation, clicks " closedown " and exits.
Setting parameter: set motor loading velocity, by parameters such as the loading load point of test examination instrument, before starting to detect, set systematic parameter must be determined.
Data maintenance: the operation such as the detection data after all preservations all can carry out inquiring about in this module, revise, printing.
Compared with prior art, the present invention has following beneficial effect:
1, high, the broad quantum of accuracy: system accuracies is 0.3%; The moment of torsion regulator of configuration 6 different ranges, range covers 5Nm ~ 3000Nm;
2, simple operation, work efficiency are high: possess manually and automatic two kinds of operator schemes, freely switch; Loading velocity is adjustable, and what automatically complete arbitrary number of times adds uninstall process, without the need to manual intervention;
3, wide application: can detect presetting system torque spanner, pointer torque spanner and Digital-display torque spanner, even comprises lower than 0.5 grade of torque sensor.Corresponding mode of operation and data unit can be selected according to the classification of spanner;
4, compact conformation, good stability: adopt planetary reducer wheel shaft load mode, course of work noise is extremely low, operates steadily, and integral rigidity is large, and system stability is good;
5, set expandability is strong: according to user's request, can select touch screen operation mode or PC mode of operation; PC mode of operation is configured with the annex such as function software, printer of specialty, can realize the one-stop flow processs such as the collection of data, process, storage, inquiry and printing certificate;
6, system can magnitude tracing: all through assay approval when every the moment of torsion regulator configured and machine system dispatch from the factory, as user has needs then can provide corresponding calibration certificate.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of torque spanner automatic checkout system of the present invention.
Fig. 2 is torque sensor package structural representation.
Fig. 3 is rail plate of the present invention, slide damper and fixed guide syndeton schematic diagram.
---------------keyboard and mouse drawer, 9---deceleration rack, 10---industry control rack, 71-torque sensor, 72-'s standard torquemeter (can fast insert-pull change), 8 transfer bearing, 11-work top, 12-planetary reducer, 13-servomotor, 14-rail plate, 15-tie down screw fixed guide (separately with adding long guideway), 7 tested torque spanner, 6 slide damper, 5 for 1-electrical control cabinet, 2-manual operating platform, 3-display and support, 4.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to following embodiment, all technology realized based on content of the present invention all belong to scope of the present invention.
Torque spanner automatic checkout system as shown in Figures 1 to 3, comprise standard torquemeter 7, work top 11, topworks and electric control system, described standard torquemeter 7 is connected with electric control system by signal wire, and described electric control system applies moment of torsion by driving servomotor 13 pairs of topworkies.
Described topworks comprises the planetary reducer 12 be arranged in deceleration rack 9, be fixed on the fixed guide 6 on work top 11 and the rail plate 14 be arranged on fixed guide 6 and slide damper 4; Described servomotor 13 is connected with planetary reducer 12 by transmission shaft, planetary reducer 12 is by connecting bushing 72 and through work top the bolt be connected with planetary reducer top is vertically mounted on work top 11 times, and connecting bushing 72 top connects the standard torquemeter 7 be vertically disposed on work top 11; Described detected torque spanner 5 one end is fixed on standard torquemeter 7, and the other end is placed on rail plate 14, and standard torquemeter 7 and rail plate 14 have the fixing fixed part being detected torque spanner 5.
Described electric control system is arranged in electrical control cabinet 1 under work top 11 and industry control rack 10, and electric control system also comprises the display be fixed on work top 11, be arranged on manual operating platform 2 on front side of work top.
Industrial computer is equiped with in described industry control rack 10, described industrial computer and servomotor 13, servo controller, reactor, wave filter, PLC, data collecting card and the contactor electric control system in series be installed in electrical control cabinet 1, and be connected with standard torquemeter 7 and display by signal wire.
Described standard torquemeter 7 is made up of torque sensor 71 and accurate secondary instrument, and the torque data collected is passed to torque sensor 71 by described secondary instrument, and data are passed to the industrial computer of electric control system by torque sensor by signal wire.
Described standard torquemeter 7 has the specification of 6 kinds of different ranges, and range covers 5Nm ~ 3000Nm.
Described slide damper 4 is provided with can the little supporting plate that moves up and down of vertical direction, described slide damper 4 and little supporting plate all on be designed with tie down screw 15.
Described work top 11 is integral plates that one piece of thickness is more than or equal to 20mm, and as preferably, the present embodiment elects the thick integral plate of 30mm as.
Described rail plate 14 designs for T-shape.
In this enforcement, this apparatus design load is 3000Nm, and for reducing the power of servomotor, therefore select three-stage planetary speed reducer, reduction gear ratio is up to 1280:1, and specified output torque is 3700Nm, and max. output torque is 7400Nm, completely competent; In general, effective use range of torque sensor is 20% ~ 100% of its full scale, for ensureing the accuracy of measuring of system in 3000Nm gamut, a series of High-precision standard torque gauge must be configured, therefore devise fast interface, the base of torque gauge, through specific customization, is embedded on speed reducer output shaft, coordinate closely, can not produce and rock.
Electric control system part is by elaborate servo motor, servo controller, reactor, wave filter, and the electric attachments compositions such as Schneider PLC, standard torquemeter, data collecting card, industrial computer, display and contactor, realize moment of torsion closed-loop control.(1) the single load time is comparatively suitable at about 30 seconds; Too slowly, can work efficiency be affected, then can bring impact to torque spanner structure too soon, and produce certain error.When this just requires just to start, loading velocity is very fast, when approaching preset value, reduces speed now; Capture peak value during calibrating presetting system torque spanner, then fast discharging is to zero point; When calibrating digital display or pointer torque spanner, be then stabilized in preset value, until accept next step operational order.User difference can arrange loading velocity flexibly according to use habit and detected object; (2) the judgment threshold agent structure that user should be allowed to arrange presetting system torque spanner voluntarily that peak value catches is a leverage, and when the moment of torsion suffered by it arrives preset value, lever will slide suddenly, send " " a sound loud and clear.This parameter judges for peak value just, can established standards torque gauge gather torque signal fall value (or drop range) for peak value judgment threshold, the slope that also can set moment of torsion loading curve is judgment threshold.Because the presetting system torque spanner mechanism characteristics of each producer is different, the change in torque of pre-and post-peaking varies, and torque spanner is similar to elastic lever in loading procedure, rock or distortion can produce indicating value fluctuation, if the judgment threshold of systemic presupposition is excessive, can peak value be leaked through, too small, can erroneous judgement be produced, now just require that user is revised according to the characteristic of checked object.
Software section: upper computer software adopts C#2008 establishment, mainly comprises detection experiment, data management, tested equipment control 3 functional modules, the instrument setting up management database employing is Access2003.The overall process that the manual torque spanner that software covers detects, has peak value to catch and Steam Generator in Load Follow two kinds of operator schemes.Peak value trap mode is mainly used in the detection of presetting system torque spanner, in particular cases also can be used as limit load (destructiveness) test of other components; Under this pattern, system can according to the change of indicating value, and automatic decision also catches peak value, and then Self-tipping is to zero point, automatically completes a loaded cycle; The performance assessment criteria such as system default is prestrain 3 times, and automatically load 3 times, data by oneself, directly draw the error of indication in certificate format, indicating value repeatability.User also can set cycle index arbitrarily, is similar to the torture test doing torque spanner, and without the need to manual intervention.Steam Generator in Load Follow pattern is mainly used in the detection of Digital-display torque spanner and pointer torque spanner.User can freely preset some load(ing) points, and presets the retention time of load when arriving preset, so that user reads the indicating value on torque spanner digital display or on scale, and by its input system, uses data processing.
System also establishes equipment management data storehouse, facilitates user to inquire about the various information of tested equipment, as specification number, calibration interval prompting, historical data contrast etc.Wherein historical data comparing function is extremely important, and system can draw out the change curve of tested equipment operating characteristic thus, user can be helped to understand the state of tested equipment at any time, safeguard in time, prevents from damaging.
The detection system of PC control formula is applicable to the gauge check mechanism and the enterprise that possess good testing laboratory environment, and the detection data of torque spanner can access the existing Test database system of the other side, sets up into a unified detection management system.
In addition, according to the difference of user's use occasion and custom, the detection system of configuration touch screen operation formula is devised separately, simple and quick, be applicable to the occasions such as factory floor.
Test result: after device completes, the gauging instrument such as standard torquemeter, data collecting instrument has all carried out magnitude tracing, and has carried out uncertainty evaluation to machine system, and result meets 0.3 grade, as standard set-up, the calibrating of less than 1 grade manual torque spanner, calibration operation can be carried out.
To the east of safe board NL760 type torque spanner be checked object, carried out test of many times, the data obtained processed, the results are shown in Table 1.
Table 1NL760 type torque spanner calibrating data
In the same way, detect east safe board NL3000 type torque spanner, result is as shown in table 2.
Table 2NL3000 type torque spanner calibrating data
The accuracy rating that dispatches from the factory of two NL type torque spanners is ± 3%, all qualified from visible two torque spanners of upper table, and their relative error of indicating value is all in 2% scope, and indicating value repeatability better.This illustrates that this calibrating instrument integral rigidity is good, and the deflection of whole torque loading mechanism is very little, and guarantee is by the indicating value repeatability index of test examination instrument; And for relative error of indicating value, can by being revised the calibration of standard torquemeter.
The software algorithm step that accurate torque controls is as follows:
1, system is according to the loading direction of setting, rotates with set higher speed actuating motor, and the monitoring of starting torque value;
2, when torque value loads 20% of torque value close to setting, control motor and rotate with a middle-grade speed and run;
3, when torque value loads the fluctuation range of torque value close to setting, control motor and run with a geared-down speed rotation;
4, when torque value loads the maintenance range of stability of torque value close to setting, control motor a very low speed rotate and run;
5, after system stability reaches setting-up time interval, the dialog box of user's input torque spanner reading is ejected;
6, after user inputs reading, system-computed error also, after preserving data, enters next load(ing) point and detects.
Claims (9)
1. a torque spanner automatic checkout system, it is characterized in that: comprise standard torquemeter (7), work top (11), topworks and electric control system, described standard torquemeter (7) is connected with electric control system by signal wire, and described electric control system applies moment of torsion by driving servomotor (13) to topworks;
Described topworks comprises the planetary reducer (12) be arranged in deceleration rack (9), be fixed on the fixed guide (6) on work top (11) and the rail plate (14) be arranged on fixed guide (6) and slide damper (4);
Described servomotor (13) is connected with planetary reducer (12) by transmission shaft, planetary reducer (12) is by connecting bushing (72) and under being vertically mounted on work top (11) through work top the bolt be connected with planetary reducer top, and connecting bushing (72) top connects the standard torquemeter (7) be vertically disposed on work top (11); Described tested torque spanner (5) one end is fixed on standard torquemeter (7), the other end is placed on rail plate (14), standard torquemeter (7) and rail plate (14) are provided with the fixed part of fixing tested torque spanner (5)
Described electric control system is arranged in electrical control cabinet (1) under work top (11) and industry control rack (10), and electric control system also comprises the display be fixed on work top (11), be arranged on manual operating platform (2) on front side of work top.
2. torque spanner automatic checkout system according to claim 1, it is characterized in that: industry control rack is equiped with industrial computer in (10), described industrial computer and the servomotor (13), servo controller, reactor, wave filter, PLC, data collecting card and the contactor electric control system in series that are installed in electrical control cabinet (1), and be connected with standard torquemeter (7) and display by signal wire.
3. torque spanner automatic checkout system according to claim 1, it is characterized in that: described standard torquemeter (7) is made up of torque sensor (71) and accurate secondary instrument, the torque data collected is passed to torque sensor (71) by described secondary instrument, and data are passed to the industrial computer of electric control system by torque sensor by signal wire;
Described standard torquemeter (7) has the specification of 6 kinds of different ranges, and range covers 5Nm ~ 3000Nm.
4. torque spanner automatic checkout system according to claim 1, it is characterized in that: described slide damper (4) is provided with can the little supporting plate that moves up and down of vertical direction, described slide damper (4) and little supporting plate all on be designed with tie down screw (15).
5. torque spanner automatic checkout system according to claim 1, is characterized in that: described work top (11) is the integral plate that one piece of thickness is more than or equal to 20mm.
6. torque spanner automatic checkout system according to claim 1, is characterized in that: described rail plate (14) is T-shape structural design.
7. as described in one of claim 1-6, utilize torque spanner automatic checkout system to carry out a detection method for torque spanner, it is characterized in that:
Described torque spanner automatic checkout system detection method is: it is upper and axially parallel with work top described detected torque spanner (5) to be installed to standard torquemeter (7) and rail plate (14), standard torquemeter (7) detects the torque value suffered by this spanner in real time, and this value is sent to electric-control system, servomotor (13) is driven to drive reductor to apply moment of torsion, when arriving the torque value preset, motor in low-speed motion mode to keep default applying value, if capture peak value, Self-tipping gets back to zero point, form the closed-loop system of a precise hard_drawn tuhes,
Described electric-control system drives the process of servomotor, has been come by the preset mode on industrial computer;
Described preset mode mainly comprises presetting system, indicating value style, data management, data maintenance, systematic parameter five functional modules, the overall process that the manual torque spanner covered detects.
8. the detection method utilizing torque spanner automatic checkout system to carry out torque spanner according to claim 7, is characterized in that:
Described detected torque spanner (5) when mounted, the height of the little supporting plate in slide damper (4) need be adjusted, ensure that detected torque spanner is parallel with work top (11), the cylinder of slide damper (4) leans against the loading groove place of torque spanner.
9. the detection method utilizing torque spanner automatic checkout system to carry out torque spanner according to claim 7, is characterized in that:
Described torque spanner detection system is provided with manual control button, when system malfunctions, after can clicking this button, utilizes manual operating platform (2) to control.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104132766B (en) * | 2014-08-01 | 2017-01-11 | 昆山市创新科技检测仪器有限公司 | High-precision torque detection device |
| CN107255538A (en) * | 2017-05-05 | 2017-10-17 | 常州市计量测试技术研究所 | Second peak monitoring device and method in presetting system torque spanner use |
| CN107290103B (en) * | 2017-06-05 | 2020-02-04 | 中国计量科学研究院 | Multifunctional reference type torque standard machine |
| CN108036892A (en) * | 2017-10-17 | 2018-05-15 | 苏州莱测检测科技有限公司 | A kind of double-range torque spanner calibrating instrument |
| CN109297524B (en) * | 2018-07-04 | 2023-09-12 | 湖北三环汽车方向机有限公司 | Mechanical steering gear assembly detection device |
| CN111381115A (en) * | 2018-12-28 | 2020-07-07 | 海太半导体（无锡）有限公司 | Electrical test equipment centralized control system |
| CN110987292A (en) * | 2019-12-10 | 2020-04-10 | 上海精密计量测试研究所 | Automatic calibrating device and method for torque wrench |
| CN114279627A (en) * | 2021-12-14 | 2022-04-05 | 陕西航空电气有限责任公司 | Synchronous metering instrument |
| CN114593930A (en) * | 2022-03-24 | 2022-06-07 | 华能吉林发电有限公司长春热电厂 | Equipment maintenance management system device of thermal power plant |
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