CN203745209U - Bending and twisting static rigidity test system for white car body structure - Google Patents
Bending and twisting static rigidity test system for white car body structure Download PDFInfo
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- CN203745209U CN203745209U CN201420117557.9U CN201420117557U CN203745209U CN 203745209 U CN203745209 U CN 203745209U CN 201420117557 U CN201420117557 U CN 201420117557U CN 203745209 U CN203745209 U CN 203745209U
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Abstract
The utility model provides a bending and twisting static rigidity test system for a white car body structure, which can resolve the problems of the prior art that the white car body cannot be leveled in a rapid and accurate manner, and when the bending rigidity test is conducted, a front bearer assembly cannot be conveniently fixed to a horizontal iron workbench, and automatic adjustment cannot be conducted. The bending and twisting static rigidity test system comprises a front suspension restraint device, a rear suspension restraint device, a twisting rigidity loading device, a bending rigidity loading device, a tiptronic loading machine, a measuring device, and a data acquisition processing device. The restraint device is used for fixing a front suspension vibration damper of the white car body and a rear suspension spring mounting bearer and for adjusting the supporting height. The loading device is used for applying twisting or bending load, required by the white car body during the test process. The data acquisition processing device is used for collecting force and displacement signal and conducting processing. The bending and twisting static rigidity test system for a white car body structure is advantageous in that load is applied by means of a servo motor; working strength is small, loading precision is high, and reliability is good.
Description
Technical field
The present invention relates to a kind of automobile body-in-white structure curved, turn round static angular rigidity testing system, the load applying device that refers more particularly to the restraint device of the tested white car body bearing height of a kind of automatic adjustment and automatically load.
Background technology
Structures of car white-body is curved, turn round quiet rigidity is to evaluate the important technology index of body in white structure opposing bending and torsion deformability, and body in white structure is curved, turn round quiet rigidity has material impact to NVH performance and the control stability of automobile.Therefore,, in vehicle complete vehicle R&D process, body in white is reversed and the analysis of experiments research of the bending stiffness link that is absolutely necessary.
A kind of " structures of car white-body torsional rigidity test constraint and charger " disclosed in the patent documentation of China Patent No. CN1405542A, while relating to the test of structures of car white-body torsional rigidity, for supporting, test the restraint device of body in white and reverse charger, this device is easy and simple to handle, simple in structure, but need manual loading, working strength is large, and does not provide windup-degree measuring method.
A kind of " structures of car white-body bending stiffness test constraint and charger " disclosed in the patent documentation of China Patent No. CN1405545A, relate to structures of car white-body bending stiffness when test for supporting restraint device and the crooked charger of tested body in white, this apparatus structure is simple, but need equally manual loading, working strength is larger, and does not relate to body in white height control mode and body in white sag measuring method.
A kind of " structures of car white-body static angular rigidity testing system and detection method thereof " disclosed in the patent documentation of China Patent No. CN101281085A, while relating to body in white construction torsion rigidity and bending stiffness test, support restraint device and the charger of test body in white, this device is by servo control mechanism imposed load, experiment work intensity decreases, but leveling body in white fast and accurately, and when carrying out bending stiffness test, be inconvenient to front seat assembly and Horizon iron worktable to fix.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of highly versatile, experiment work intensity is little, and automaticity is high, fast the static angular rigidity testing system of structures of car white-body bending accurately.
A kind of structures of car white-body bending static angular rigidity testing system, comprise front suspension restraint device and rear suspension restraint device that tested body in white is fixed, bending stiffness that tested body in white is loaded is measured charger and torsional rigidity and is measured charger and add carrier aircraft, measurement mechanism and data acquisition processing device as the auto-manual of PTO; Described front suspension restraint device and rear suspension restraint device are fixing for body in white is gone forward suspension shock-absorber and the constraint of rear suspension spring erection support place, and body in white bearing height is adjusted, torsional rigidity charger, bending stiffness charger and auto-manual add carrier aircraft for body in white being applied to needed torsion or bending load; Measurement mechanism is for measuring the deflection of size, body structure and the door-window opening of imposed load, and the bearing height of body in white; Data acquisition processing device is for gathering crooked loading force, reversing sensor signal and the displacement signal of loading force and process; It is characterized in that,
Described front suspension restraint device comprises T-shaped erecting frame, I-shaped crossbeam and bracing frame; Described T-shaped erecting frame comprises the base being fixedly connected with Horizon iron worktable by bolt, and on described base, welds two parallel vertical beams, and described I-shaped crossbeam is arranged between two vertical beams, and is rotationally connected by coupling shaft and vertical beam; I-shaped crossbeam downside two ends are connected with base hinge in vertical beam both sides by two auxiliary connecting rods respectively, and two bracing frames are installed by guide runner respectively in the upside two ends of described I-shaped crossbeam, and by the slip of screw restricted guidance slide block; Described bracing frame comprises the rectangular tube being welded on guide runner, and the top of rectangular tube is provided with spiral landing machine by bolt, and described spiral landing machine coordinates with front constraint cover plate, retrains the front suspension vibration damping tower seat of tested body in white;
Described rear suspension restraint device comprises the installing plate being fixedly connected with Horizon iron worktable by bolt, on described installing plate, weld square tube column, and reinforce by reinforcement, the upper end of described square tube column is bolted installation spiral lift, the rear suspension spring bearing of described spiral lift and the tested body in white of rear constraint cover plate fiting constraint, ball pivot can be removed as required, directly uses bolt to be fixedly connected with rear suspension spring bearing;
Described bending stiffness is measured charger and is comprised support I-beam, supports both sides, I-beam lower end and is separately installed with guide limiting stopper, by bolt, is fixed near the threshold place tested body in white B post; The both sides, upper end of guide limiting stopper are provided with angle sheave by welding bearing respectively; Also comprise steel cable, wire rope one end is connected on Horizon iron worktable by holder, and the other end is walked around two angle sheaves and added carrier aircraft with auto-manual and be connected.
Beneficial effect of the present invention:
One, the present invention includes restraint device, charger, measurement mechanism and data acquisition processing device, wherein restraint device comprises front suspension restraint device and rear suspension restraint device, separate between forward and backward suspension restraint device, go for disalignment apart from the measurement of vehicle, front suspension restraint device is by the cooperation of guide runner and I-shaped crossbeam, can regulate left and right two bracing frame spacing, meet different car front suspensions apart from requiring, highly versatile.
Two, front suspension restraint device of the present invention and rear suspension restraint device are provided with spiral landing machine, by body in white electronic controlled height adjustment and stay-supported type displacement sensor in industrial computer, coordinate, control servomotor rotating, can be under differing heights level fast leveling body in white.
Three, the present invention adopts servomotor to carry out body in white height control and imposed load, and control accuracy is high, and the present invention simultaneously can also carry out manual adjustments and manual loading by handwheel, can meet different applying working conditions.
Four, the present invention adopts stay-supported type displacement sensor to measure body in white height and deflection, and measuring accuracy is high, and stay-supported type displacement sensor is provided with travel switch, prevents overload, safe.
Five, the test module in the industrial computer of data processing equipment of the present invention can accurately be controlled servomotor rotating by electric machine controller, realize automatically and loading, data processing module can accurately be processed test result, automaticity is high, reduce the working strength of testing crew, improved test efficiency and precision.
Accompanying drawing explanation
Fig. 1 is total structural representation of structures of car white-body bending static angular rigidity testing system of the present invention;
Fig. 2 is that Fig. 1 removes Structural Static rigidity testing system schematic diagram after body in white;
Fig. 3 is front suspension restraint device schematic diagram in structures of car white-body bending static angular rigidity testing system of the present invention;
Fig. 4 is the front view of front suspension restraint device in Fig. 3;
Fig. 5 is rear suspension restraint device schematic diagram in structures of car white-body bending static angular rigidity testing system of the present invention;
Fig. 6 is the front view of rear suspension restraint device in Fig. 5;
Front suspension restraint device schematic diagram when Fig. 7 carries out used for torsional rigidity test of vehicular for employing structures of car white-body bending static angular rigidity testing system of the present invention;
Fig. 8 is bending stiffness charger schematic diagram in structures of car white-body bending static angular rigidity testing system of the present invention;
Fig. 9 is that in structures of car white-body bending static angular rigidity testing system of the present invention, auto-manual adds carrier aircraft structural representation;
Figure 10 is that after removing casing in Fig. 9, auto-manual adds carrier aircraft inner structure schematic diagram;
Figure 11 is interior each module diagram of industrial computer in structures of car white-body bending static angular rigidity testing system of the present invention;
Embodiment
Embodiment one, in conjunction with Fig. 1 to Figure 11, present embodiment is described, structures of car white-body is curved, turn round in static angular rigidity testing system, comprise restraint device, charger, measurement mechanism and data acquisition processing device, it is characterized in that: described restraint device comprises front suspension restraint device 1 and the rear suspension restraint device 2 that tested body in white 7 is retrained; Described charger comprises torsional load bringing device and the bending load bringing device 3 that tested body in white is loaded, and adds carrier aircraft 4 as the auto-manual of PTO; Described measurement mechanism comprises the stay-supported type displacement sensor 5 of power sensor 411, measurement body in white malformation amount, door-window opening deflection and the body in white bearing height of measuring magnitude of load, and the travel switch shielding; Described data acquisition processing device comprises industrial computer 9, data collecting instrument 10 and electric machine controller 8, has A/D and D/A interface board in industrial computer, and is provided with the software modules such as the regulation and control of body in white bearing height, rigidity test and data calculating.
In described restraint device, front suspension restraint device 1 comprises T-shaped erecting frame, I-shaped crossbeam 106 and bracing frame; Described T-shaped erecting frame comprises a base 101 being fixedly connected with Horizon iron worktable by bolt, two vertical beams 102 of parallel welding on it, I-shaped crossbeam 106 is arranged between two vertical beams 102, and is rotationally connected by a coupling shaft 103 and vertical beam 102; Two auxiliary connecting rods 104 are passed through respectively at vertical beam 102 both sides and base 101 chain connections in I-shaped crossbeam 106 downside two ends, and two bracing frames are installed by guide runner respectively in upside two ends, and by the slip of screw restricted guidance slide block; Described bracing frame comprises a rectangular tube 108 being welded on guide runner, top is provided with a spiral landing machine by bolt, its input end is the first handwheel 110 and the first servomotor 111 being arranged on the first casing 109, output terminal is the first leading screw 113, and being welded with the first guide pipe 112 of booster action, leading screw is through guide pipe; Leading screw 113 coordinates by the first ball pivot 114 and front constraint cover plate 115 the front suspension vibration damping tower seat that retrains tested body in white 7 simultaneously, and ball pivot can be removed as required, directly uses bolt to be fixedly connected with front suspension vibration damping tower seat.
In described restraint device, rear suspension restraint device comprises an installing plate 201 being fixedly connected with Horizon iron worktable by bolt, a square tube column 203 of welding on it, and reinforce by reinforcement 202, square tube column 203 upper ends are bolted installs a spiral lift, its input end is the second handwheel 205 and the second servomotor 206 being arranged on the second casing, output terminal is the second leading screw 208, and be welded with the second guide pipe 207 of booster action, the second leading screw 208 is through the second guide pipe 207, by the second ball pivot 209 and rear constraint cover plate 210, coordinate the rear suspension spring bearing that retrains tested body in white 7, the second ball pivot 209 can be removed as required, directly use bolt to be fixedly connected with rear suspension spring bearing.
In described charger, torsional rigidity is measured charger and front suspension restraint device 1 integrates, two auxiliary connecting rods 104 are removed, in I-shaped crossbeam 106 1 sides, by loading articulated elements 107 connection auto-manuals, added carrier aircraft 4, opposite side connecting stay wire formula displacement transducer 5 and travel switch.
In described charger, described bending stiffness is measured charger 3 and is comprised a support I-beam 301, and its both sides, lower end are separately installed with guide limiting stopper 302, by bolt, is fixed near the threshold place tested body in white B post; Its both sides, upper end are provided with angle sheave 306 by welding bearing 305 respectively; Bending stiffness is measured charger 3 and is also comprised steel cable 304, and wire rope one end is connected on Horizon iron worktable 6 by holder 303, and the other end is walked around two angle sheaves 306 and added carrier aircraft 4 with auto-manual and be connected.
In described charger, auto-manual adds carrier aircraft 4 and comprises mounting bracket 401 and spiral landing machine, and mounting bracket 401 is mounted by means of bolts on Horizon iron worktable 6, and mounting bracket 401 tops are bolted to connection the 3rd casing 403 of spiral landing machine; Its inside is worm and gear and screw-nut body; The input end of spiral landing machine is the 3rd handwheel 402 and the 3rd servomotor 408 being arranged on casing; In the 3rd handwheel 402 and the 3rd servomotor 408 connect boxes, by bearing 405, be arranged on the worm screw 406 on the 3rd casing 403, it is connected with the turbine 407 being arranged on casing 403 by bearing 404; Turbine 407 internal whorls connect leading screw 409, and leading screw 409 passes casing and connects power sensor 411 by articulated elements 410, and the power sensor other end measures charger by articulated elements 410 connection torsional rigidities or bending stiffness is measured charger.
In described measurement mechanism, stay-supported type displacement sensor 5 and travel switch integrate, for measuring the stay-supported type displacement sensor 5 of body in white 7 malformation amounts and body in white 7 bearing heights, by screw, be arranged on magnetic bases, fix by magnetic force with Horizon iron worktable 6, bracing wire end is fixed on position to be measured in body in white 7 structures; A diagonal line place that is fixed by screws in door-window opening for measuring the stay-supported sensor 5 of door-window opening deflection, bracing wire end is fixed on another corresponding diagonal line place of door-window opening; For measuring the stay-supported type displacement sensor 5 of body in white 7 bearing heights, by screw, be arranged on magnetic bases, fix by magnetic force with Horizon iron worktable 6, the bracing wire end of measuring the stay-supported type displacement sensor of body in white front support height is fixed on front suspension damping tower seat place, and the bracing wire end of measuring the stay-supported type displacement sensor of body in white back support height is fixed on rear suspension spring bearing place.
Described data acquisition processing device comprises industrial computer 9, data collecting instrument 10 and electric machine controller 8, and A/D interface 91 and D/A interface 96, signal condition module 92, the regulation and control of body in white bearing height module 93, test module 94 and data computation module 95 are housed in industrial computer 9; A/D interface 91 is for gathering, the displacement signal of the stay wire displacement sensor of force signal, measurement body in white malformation amount and the door-window opening deflection of the power sensor output of measurement imposed load, and the displacement signal of measuring the stay-supported type displacement sensor of body in white bearing height, and be sent to signal condition module 92, by data collecting instrument 10, carry out data recording; D/A interface board 96 gives electric machine controller 8 output load signal, drives servomotor to regulate body in white bearing height, apply torsional load or bending load; Body in white bearing height regulation and control module 93 is obtained the altitude signal of four body in white Support Positions by data collecting instrument 10, according to preset height value, to electric machine controller 8, export load signal, four servomotors before and after driving in restraint device regulate body in white bearing height, make it in horizontality; Body in white is curved, turn round rigidity test module 94 according to default load value to electric machine controller 8 output load signal, drive servomotor to apply bending or torsional load to body in white, by data collecting instrument 10, gather imposed load and deflection signals; The measurement data that data computation module 95 obtains according to test module 94 is calculated body in white torsional rigidity and bending stiffness, and generates as required chart-information, shows test findings.
In conjunction with Fig. 1 and Fig. 2, present embodiment is described, subjects is body in white 7, and front suspension restraint device 1 retrains body in white 7 at front suspension damping tower seat place, and rear suspension restraint device 2 retrains body in white 7 at rear suspension spring bearing place; Near body in white 7 fore suspension and rear suspension obligatory points, four mounting points in same level are set, for being fastened on the bracing wire end of the stay-supported type displacement sensor 5 on Horizon iron worktable 6; After constraint body in white 7, the body in white bearing height regulation and control module in industrial computer 9, according to stay-supported type displacement sensor numerical value, is adjusted the bearing height of body in white 7 by the spiral landing machine on fore suspension and rear suspension restraint device, make it in horizontality.The servomotor 111 that described industrial computer 9 adds carrier aircraft 4 by 8 pairs of auto-manuals of electric machine controller sends instruction, control spiral landing machine body in white 7 is carried out to load or unload, after body in white 7 distortion, the power that power sensor 411 and stay-supported type displacement sensor 5 are measured and displacement signal are transferred to industrial computer 9 by data collecting instrument 10 and process; Twisting states and the case of bending of travel switch monitoring body in white 7, when deflection is greater than pre-set limit, travel switch is triggered, and sends to industrial computer 9 stop load signal by data collecting instrument 10.
Claims (7)
1. a structures of car white-body bending static angular rigidity testing system, comprise front suspension restraint device (1) and rear suspension restraint device (2) that tested body in white (7) is fixed, bending stiffness that tested body in white is loaded is measured charger (3) and torsional rigidity measurement charger and is added carrier aircraft (4), measurement mechanism and data acquisition processing device as the auto-manual of PTO; Described front suspension restraint device (1) and rear suspension restraint device (2) are fixing for body in white is gone forward suspension shock-absorber and the constraint of rear suspension spring erection support place, and body in white bearing height is adjusted, torsional rigidity charger, bending stiffness charger and auto-manual add carrier aircraft for body in white being applied to needed torsion or bending load; Measurement mechanism is for measuring the deflection of size, body structure and the door-window opening of imposed load, and the bearing height of body in white; Data acquisition processing device is for gathering crooked loading force, reversing sensor signal and the displacement signal of loading force and process; It is characterized in that,
Described front suspension restraint device (1) comprises T-shaped erecting frame, I-shaped crossbeam (106) and bracing frame; Described T-shaped erecting frame comprises the base (101) being fixedly connected with Horizon iron worktable by bolt, and at two parallel vertical beams (102) of the upper welding of described base (101), described I-shaped crossbeam (106) is arranged between two vertical beams (102), and is rotationally connected by coupling shaft (103) and vertical beam (102); Two auxiliary connecting rods (104) are passed through respectively at vertical beam (102) both sides and base (101) chain connection in I-shaped crossbeam (106) downside two ends, two bracing frames are installed by guide runner respectively in the upside two ends of described I-shaped crossbeam (106), and by the slip of screw restricted guidance slide block; Described bracing frame comprises the rectangular tube (108) being welded on guide runner, the top of rectangular tube (108) is provided with spiral landing machine by bolt, described spiral landing machine coordinates with front constraint cover plate (115), retrains the front suspension vibration damping tower seat of tested body in white (7);
Described rear suspension restraint device (2) comprises the installing plate (201) being fixedly connected with Horizon iron worktable by bolt, at the upper welding of described installing plate (201) square tube column (203), and reinforce by reinforcement (202), the upper end of described square tube column (203) is bolted installation spiral lift, the rear suspension spring bearing of described spiral lift and the tested body in white of rear constraint cover plate (210) fiting constraint (7), ball pivot can be removed as required, directly uses bolt to be fixedly connected with rear suspension spring bearing;
Described bending stiffness is measured charger (3) and is comprised and support I-beam (301), supports I-beam (301) both sides, lower end and is separately installed with guide limiting stopper (302), by bolt, is fixed near the threshold place tested body in white B post; The both sides, upper end of guide limiting stopper (302) are provided with angle sheave (306) by welding bearing (305) respectively; Also comprise steel cable (304), it is upper that wire rope one end is connected to Horizon iron worktable (6) by holder (303), and the other end is walked around two angle sheaves (306) and added carrier aircraft (4) with auto-manual and be connected.
2. structures of car white-body bending static angular rigidity testing system according to claim 1, it is characterized in that, described auto-manual adds carrier aircraft (4) and comprises mounting bracket (401) and spiral landing machine, it is upper that mounting bracket (401) is mounted by means of bolts on Horizon iron worktable (6), and mounting bracket (401) top is bolted to connection spiral landing machine; Described spiral landing machine connects torsional rigidity and measures charger or bending stiffness measurement charger.
3. structures of car white-body bending static angular rigidity testing system according to claim 1 and 2, it is characterized in that, the structure that described front suspension restraint device (1), rear suspension restraint device (2) and auto-manual add the spiral landing machine in carrier aircraft (4) is identical, its input end is hand and the servomotor being arranged on casing, and the output terminal of spiral landing machine is leading screw.
4. structures of car white-body bending static angular rigidity testing system according to claim 3, it is characterized in that, in front suspension restraint device (1), leading screw coordinates by ball pivot and front constraint cover plate (115), retrain the front suspension vibration damping tower seat of tested body in white (7), in rear suspension restraint device (2), leading screw coordinates by ball pivot and rear constraint cover plate (210), retrain the rear suspension spring bearing of tested body in white (7), at auto-manual, adding in carrier aircraft (4) leading screw passes casing and connects power sensor by articulated elements, the power sensor other end connects torsional rigidity by articulated elements and measures charger or bending stiffness measurement charger (3).
5. structures of car white-body bending static angular rigidity testing system according to claim 4, it is characterized in that, in front suspension restraint device (1) and rear suspension restraint device (2), described ball pivot is removed as required, adopts bolt to be fixedly connected with front suspension vibration damping tower seat or adopts bolt to be fixedly connected with rear suspension spring bearing.
6. structures of car white-body bending static angular rigidity testing system according to claim 1, it is characterized in that, described torsional rigidity measurement charger and front suspension restraint device (1) are integrated, two auxiliary connecting rods (104) in front suspension restraint device (1) are removed, in I-shaped crossbeam (106) one sides, by loading articulated elements (107) connection auto-manual, add carrier aircraft (4), opposite side connecting stay wire formula displacement transducer (5) and travel switch.
7. structures of car white-body bending static angular rigidity testing system according to claim 1, it is characterized in that, described measurement mechanism comprises that power sensor, measurement body in white malformation amount, door-window opening deflection and the stay-supported type displacement sensor of body in white bearing height, the travel switch shielding and the signal of measuring imposed load size amplify and Displaying Meter; Described stay-supported type displacement sensor (5) and travel switch integrate, the stay-supported type displacement sensor (5) that is used for measuring body in white (7) malformation amount and body in white (7) bearing height is arranged on magnetic bases by screw, fix by magnetic force with Horizon iron worktable (6), bracing wire end is fixed on position to be measured in body in white (7) structure; A diagonal line place that is fixed by screws in door-window opening for measuring the stay-supported sensor (5) of door-window opening deflection, bracing wire end is fixed on another corresponding diagonal line place of door-window opening; The stay-supported type displacement sensor (5) that is used for measuring body in white (7) bearing height is arranged on magnetic bases by screw, fix by magnetic force with Horizon iron worktable (6), the bracing wire end of measuring the stay-supported type displacement sensor of body in white front support height is fixed on front suspension damping tower seat place, and the bracing wire end of measuring the stay-supported type displacement sensor of body in white back support height is fixed on rear suspension spring bearing place.
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