CN106500975A - A kind of parts strain and load calibration test device - Google Patents
A kind of parts strain and load calibration test device Download PDFInfo
- Publication number
- CN106500975A CN106500975A CN201610915367.5A CN201610915367A CN106500975A CN 106500975 A CN106500975 A CN 106500975A CN 201610915367 A CN201610915367 A CN 201610915367A CN 106500975 A CN106500975 A CN 106500975A
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- load
- constraint
- parts
- rod member
- chuck
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention is claimed the experimental rig of a kind of parts strain and load calibration, and fixed pedestal is placed on the ground, and constraint mechanism is fixedly installed in the one end on fixed pedestal top, and torque sensor, force snesor are installed on constraint mechanism；Load maintainer is installed on the other end on fixed pedestal top by guide rail and rack-and-pinion, linear actuator, motor, reductor are fixedly installed on load maintainer, it is connected with unit under test and imposed load, displacement transducer is installed on linear actuator, and motor is connected with reductor by belt.The unit under test clamping of foil gauge will be pasted between constraint mechanism and charger, according to the length of unit under test by the adjustable load maintainer position of controller, force snesor, torque sensor, displacement transducer, foil gauge signal data line are connected to controller, the strain of unit under test, power (square), displacement (corner) signal is gathered and demarcated, the efficiency and precision of staking-out work is improve.
Description
Technical field
The invention belongs to a kind of experimental rig strained for parts with load calibration, it is mainly used in by automobile bottom
The strain signal of disk key components and parts measures and is converted to power or torque load, and the signal can be used for parts bench test and add
Carry, be applied to automobile research, belong to auto industry engineering field.
Background technology
Automobile chassis key components and parts primarily serve the load that transmits from road surface, are the main force structure portions of vehicle
Part, the real load of measuring vehicle parts in the process of moving have great importance to automobile research, are typically employed in zero
Parts surface pastes foil gauge, measures parts logarithmic strain in the process of moving, but strain data is parts to be received
Response signal under external load excitation, it is impossible to be directly used in the loading of parts bench test or CAE emulation.
For obtaining the excitation load of parts, technique study and application, installing force such as on parts has been carried out both at home and abroad
(square) sensor carrys out power (square) load of obtaining widget, the method can direct access excitation load, but part need to be changed a social system,
Complexity, high cost, and the cycle is long.
If the strain signal that can be obtained the foil gauge measurement being pasted on part is converted to power (square) letter by demarcating
Number or displacement (angle) signal, it is possible to reach with using the same purpose of power (square) sensor, and cost and cycle are more economical,
Less to this technical research and application both at home and abroad, without ripe testing equipment.
Therefore, it is specifically designed one and the strain for pasting the parts of foil gauge can be demarcated as power (square) and displacement (angle)
Experimental rig, can direct access parts excitation load, the structural behaviour for parts precisely develops.
Content of the invention
Present invention seek to address that above problem of the prior art.Propose a kind of realization direct access automobile more at low cost
The excitation load of part such as pull bar, power transmission shaft etc., its are used for the parts strain of the accurate exploitation of auto parts and components structural behaviour
With load calibration test device.
Technical scheme is as follows：
A kind of parts strain and load calibration test device, have pasted foil gauge on the tested parts, including using
In supporting the fixed pedestal of whole experimental rig, be arranged at the constraint mechanism of fixed pedestal one end, be slidably arranged on fixation
Load maintainer and controller on pedestal, the constraint mechanism are used for being fixed constraint to one end of tested parts, described
Load maintainer is used for the other end of tested parts to be fixed and loaded, and the controller works for controlled loading mechanism
And to the strain of tested parts synchronous acquisition, power/torque, displacement/angle signal, draw calibration curve.
Further, the tested parts include rod member and shaft member.
Further, force snesor, torque sensor, rod member constraint chuck and shaft member are additionally provided with the constraint mechanism
Loading flange, wherein force snesor are installed between constraint mechanism and rod member constraint chuck, and torque sensor is installed on constraint machine
Between structure and shaft member loading flange, the shaft member loading flange is arranged at the top of constraint mechanism, is provided with rod member below about
Beam chuck.
Further, it is provided with towards above constraint mechanism on the load maintainer and coordinates with shaft member loading flange
The shaft member constraint flange of connection, the shaft member constraint flange shaft are connected with the reductor that Axle Parts are applied with torsional load.
Further, it is provided with towards below constraint mechanism on the load maintainer and coordinates with rod member constraint chuck
The rod member loading chuck of connection, the rod member loading chuck are fixed on load maintainer by linear actuator.
Further, the rod member loading chuck is U-shaped fixture, and one end is fixed with linear actuator by screw thread and connected
Connect, the other end of rod member is connected by the other end by bolt and nut.
Further, displacement transducer is provided between the rod member loading chuck and linear actuator, the displacement is passed
Sensor is stay-supported type displacement sensor, and stay-supported type displacement sensor includes that body and bracing wire end, body are installed on linear actuator
On body, bracing wire end is fixedly installed on rod member loading chuck, bracing wire and linear actuator diameter parallel.
Further, the bottom of the load maintainer is provided with pinion and rack, and the pinion and rack is along fixed
Pedestal is axial arranged, and gear is installed on load maintainer lower surface, and tooth bar is installed on fixed pedestal upper surface, and both coordinate, and are used for
Drive load mechanism is moved axially along pedestal.
Further, the side of the load maintainer dorsad restraining structure is provided with motor, the motor and
Reductor coaxial communication, motor are stepper motor with encoder, are rotated by the rear axle of belt drives reductor.
Further, the controller respectively with force snesor, torque sensor, displacement transducer and foil gauge signal number
It is connected according to line, for gathering the strain of tested parts, power/torque, displacement/angle signal, and draws calibration curve.
Advantages of the present invention and have the beneficial effect that：
(1) experimental rig is strained using elastic range inner surface and the linear relationship between power load, indirect gain part
Force signal, the excitation load as strength of parts fatigue test.
(2) experimental rig can be adjusted flexibly according to part dimension, and range covers most of passenger car, the chassis of commercial car
Part, such as power transmission shaft, semiaxis, steering linkage, stabiliser bar, swing arm, damper, helical spring etc., range of application is wider.
(3) experimental rig can realize automatic load/unload and data synchronous recording by controller, be obviously improved work
Make efficiency and reduce human error.
(4) experimental rig may be used also by the imposed load of synchronous recording part and the stroke or windup-degree of part
It is used for calculating unit Line stiffness or angular rigidity.
Description of the drawings
Fig. 1 is that a kind of part strain of present invention offer preferred embodiment is regarded with load calibration test device overall structure axle
Figure；
Fig. 2 fixed pedestal structure axonometric drawings；
Fig. 3 load maintainer structure axonometric drawings；
Fig. 4 constraint mechanism structure axonometric drawings；
In figure, symbol description is as follows：
1- fixed pedestals；2- constraint mechanisms；3- load maintainers；4- rod members constrain chuck；5- shaft member constrains flange；6- power is passed
Sensor；7- torque sensors；8- pinion and racks；9- linear actuators；10- reductors；11- rod members load chuck；12- positions
Displacement sensor；13- shaft member loads flange；14- motors；15- controllers.
Specific embodiment
Accompanying drawing in below in conjunction with the embodiment of the present invention, to the embodiment of the present invention in technical scheme carry out clear, detailed
Carefully describe.Described embodiment is only a part of embodiment of the present invention.
Technical scheme is as follows：
See that Fig. 1, the present invention are a kind of strain of parts and the experimental rig of load calibration, it includes fixed pedestal 1, constraint
Mechanism 2, load maintainer 3, rod member constraint chuck 4, shaft member constraint flange 5, force snesor 6, torque sensor 7, rack-and-pinion machine
Structure 8, linear actuator 9, reductor 10, rod member loading chuck 11, displacement transducer 12, shaft member loading flange 13, motor
14th, controller 15.
Fixed pedestal 1 is placed on the ground, and constraint mechanism 2 is fixedly installed in the one end on fixed pedestal top, for clamping
Unit under test, force snesor 6, torque sensor 7 are installed on constraint mechanism；Load maintainer 3 is pacified by guide rail and rack-and-pinion 8
The other end loaded on fixed pedestal top, linear actuator 9, motor 14, reductor 10 are fixedly installed on load maintainer,
It is connected with unit under test and imposed load, displacement transducer 12 is installed on linear actuator, motor passes through belt and subtracts
Fast machine connection.The tested rod member clamping of foil gauge will be pasted between constraint chuck 4 and loading chuck 11, or will paste should
The tested shaft member clamping for becoming piece in constraint flange 5 and is loaded between flange 13, can by controller according to the length of unit under test
Adjustment load maintainer position, force snesor, torque sensor, displacement transducer, foil gauge signal data line are connected to controller
15.
The fixed pedestal 1 is positioned over ground, for supporting whole experimental rig；
The constraint mechanism 2 is rigid frame structure, is fixedly installed in one end of fixed pedestal, for constraint by test specimen
One end；
The load maintainer 3 is for rigid platfor, and, can use along fixed pedestal axial movement adjustment according to by piece lengths
In installation reductor and linear actuator；
The rod member constraint chuck 4 is "U" shaped fixture, and one end of rod member is attached to constraint mechanism by bolt and nut
On；
The shaft member constrains flange 5 for rigid disc, and its end face radially and circumferentially has threaded mounting hole and draw-in groove,
One end of Axle Parts is fixedly installed on constraint mechanism；
The force snesor 6 is mounted between constraint mechanism and constraint chuck, for the axial force of measurement bar base part
Load；
The torque sensor 7 is installed between constraint mechanism and constraint flange, for measuring the axial force of Axle Parts
Square load；
The pinion and rack 8 is axial arranged along fixed pedestal, and gear is installed on load maintainer lower surface, and tooth bar is installed
With fixed pedestal upper surface, both coordinate, and move axially along pedestal for drive load mechanism；
The linear actuator 9 is hydraulic actuation cylinder, is fixedly installed in load maintainer upper surface, and coaxial with constraint chuck
Line, for applying Tensile or Compressive Loading to bar base part；
The reductor 10 is cycloidal pin wheel-type reductor, is fixedly installed in load maintainer upper surface, and with constraint flange
Coaxial line, for applying torsional load to Axle Parts；
For "U" shaped fixture, one end is fixedly connected with linear actuator the chuck 11 that loads by screw thread, and the other end leads to
Cross bolt and nut to connect the other end of rod member；
Institute's displacement sensors 12 are stay-supported type displacement sensor, and sensor body is installed on linear actuator body, draw
Line end is fixedly installed on chuck, bracing wire and actuator diameter parallel；
Shaft member loading flange 13 is rigid disc, is fixedly installed in reductor front end spindle nose, its end face radially and
Circumferentially there are threaded mounting hole and draw-in groove, be fixedly connected the other end of Axle Parts；
The motor 14 is stepper motor with encoder, is installed on load maintainer upper surface, by belt drives
Reductor rear axle is rotated；
The controller 15 is Industry Control cabinet, is positioned over by fixed pedestal, for controlling linear actuator and driving electricity
Machine, and synchronous acquisition strain, power/torque, displacement/angle signal, draw calibration curve.
The unit under test clamping of foil gauge will have been pasted between constraint mechanism and load maintainer, according to the length of unit under test
Along fixed pedestal guide rail adjustment load maintainer position, by force snesor, torque sensor, displacement transducer, foil gauge signal
Data wire is connected to controller, by controller to unit under test imposed load, synchronous acquisition and demarcate unit under test strain,
Strain-torque-the angle of power (square), displacement (corner) signal, the strain-power-displacement of acquisition bar base part or Axle Parts
Demarcation relation.
Workflow of the present invention is as follows：
Before test, by test specimen surface mount foil gauge, for being bar base part by test specimen, need to demarcate strain signal
Be the pressure along rod member axial direction, by this by test specimen by fixture be fixedly installed in the linear actuator chuck of load maintainer with about
On the rod member constraint chuck of beam mechanism；For being Axle Parts by test specimen, need strain signal is demarcated as along part axial direction
The shaft member of the reductor flange and constraint mechanism that are fixedly installed in load maintainer by frock by test specimen is constrained flange by torque
On.By the foil gauge holding wire by test specimen, the holding wire of power (square) sensor of constraint mechanism, load maintainer displacement/angle
The holding wire of sensor is connected to controller, the linear actuator or motor of load maintainer is applied and unloaded by controller
Lower load, and synchronous acquisition record plus the strain-power-displacement signal data in/uninstall process or strain-torque-angle signal
Data, and calibration curve is drawn, part strain signal is converted to components ' load signal.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy described with reference to the embodiment or example
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example are necessarily referred to.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
The above embodiment is interpreted as being merely to illustrate the present invention rather than limits the scope of the invention.?
After the content of the record for having read the present invention, technical staff can be made various changes or modifications to the present invention, these equivalent changes
Change and modification equally falls into the scope of the claims in the present invention.
Claims (10)
1. a kind of parts strain and load calibration test device, have pasted foil gauge on the tested parts, and its feature exists
In, including for support the fixed pedestal of whole experimental rig (1), be arranged at fixed pedestal (1) one end constraint mechanism (2),
The load maintainer (3) being slidably arranged on fixed pedestal (1) and controller (15), described constraint mechanism (2) are used for quilt
The one end for surveying parts is fixed constraint, and described load maintainer (3) are used for being fixed simultaneously the other end of tested parts
Loading, described controller (15) be used for controlled loading mechanism (3) work and to the strain of tested parts synchronous acquisition, power/torque,
Displacement/angle signal, draws calibration curve.
2. parts according to claim 1 are strained and load calibration test device, it is characterised in that described tested zero
Part includes rod member and shaft member.
3. parts according to claim 2 are strained and load calibration test device, it is characterised in that the constraint mechanism
(2) force snesor (6), torque sensor (7), rod member constraint chuck (4) and shaft member loading flange (13) are additionally provided with, wherein
Force snesor (6) is installed between constraint mechanism (2) and rod member constraint chuck (4), and torque sensor (7) is installed on constraint mechanism
(2) and shaft member loading flange (13) between, shaft member loading flange (13) is arranged at the top of constraint mechanism (2), below
It is provided with rod member constraint chuck (4).
4. parts according to claim 3 are strained and load calibration test device, it is characterised in that the load maintainer
(3) be provided with towards above constraint mechanism on shaft member constraint flange (5) that flange (13) is connected is loaded with the shaft member,
Shaft member constraint flange (5) axle is connected with the reductor (10) that Axle Parts are applied with torsional load.
5. parts according to claim 3 are strained and load calibration test device, it is characterised in that the load maintainer
(3) be provided with towards below constraint mechanism on rod member loading chuck (11) that chuck (4) is connected is constrained with the rod member,
Rod member loading chuck (11) is fixed on load maintainer (3) by linear actuator (9).
6. parts according to claim 5 are strained and load calibration test device, it is characterised in that the rod member loading
Chuck (11) is U-shaped fixture, and one end is fixedly connected with linear actuator (9) by screw thread, and the other end is by bolt and nut general
The other end connection of rod member.
7. parts according to claim 6 are strained and load calibration test device, it is characterised in that the rod member loading
Displacement transducer (12) is provided between chuck (11) and linear actuator (9), and institute's displacement sensors (12) is stay-supported position
Displacement sensor, stay-supported type displacement sensor include that body and bracing wire end, body are installed on linear actuator (9) body, bracing wire
End is fixedly installed on rod member loading chuck (11), bracing wire and linear actuator (9) diameter parallel.
8. parts according to claim 2 are strained and load calibration test device, it is characterised in that the load maintainer
(3) bottom is provided with pinion and rack (8), and pinion and rack (8) are axial arranged along fixed pedestal (1), gear
Load maintainer lower surface is installed on, tooth bar is installed on fixed pedestal upper surface, both coordinate, for drive load mechanism along pedestal
Axial movement.
9. parts according to claim 4 are strained and load calibration test device, it is characterised in that the load maintainer
(3) dorsad the side of restraining structure is provided with motor (14), motor (14) and reductor (10) coaxial communication,
Motor (14) is stepper motor with encoder, is rotated by the rear axle of belt drives reductor (10).
10. parts according to claim 7 are strained and load calibration test device, it is characterised in that the controller
(15) it is connected with force snesor (6), torque sensor (7), displacement transducer (12) and foil gauge signal data line respectively, uses
Strain, power/torque in the tested parts of collection, displacement/angle signal, and draw calibration curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915367.5A CN106500975A (en) | 2016-10-20 | 2016-10-20 | A kind of parts strain and load calibration test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915367.5A CN106500975A (en) | 2016-10-20 | 2016-10-20 | A kind of parts strain and load calibration test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106500975A true CN106500975A (en) | 2017-03-15 |
Family
ID=58318089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610915367.5A Pending CN106500975A (en) | 2016-10-20 | 2016-10-20 | A kind of parts strain and load calibration test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106500975A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802224A (en) * | 2017-03-20 | 2017-06-06 | 杭州邦威机电控制工程有限公司 | A kind of modularization electro-hydraulic servo vertical load loading device |
| CN107941500A (en) * | 2017-12-20 | 2018-04-20 | 吉林大学 | The reliability test of numerically-controlled machine tool elasticity chuck |
| CN109186658A (en) * | 2018-09-28 | 2019-01-11 | 西安交通大学 | A kind of conductive plastic potentiometer rating test device and method |
| CN113465906A (en) * | 2021-07-30 | 2021-10-01 | 杭州高品自动化设备有限公司 | Door actuator EOL testing mechanism and working method thereof |
| CN115343075A (en) * | 2022-07-29 | 2022-11-15 | 中国第一汽车股份有限公司 | Steering pull rod rigidity measuring device and testing method for dynamic model identification |
| CN115343074A (en) * | 2022-07-29 | 2022-11-15 | 中国第一汽车股份有限公司 | Steering gear body assembly rigidity measuring device and method for dynamic model identification |
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| CN1462871A (en) * | 2003-06-26 | 2003-12-24 | 上海申联试验机厂 | Three degree of freedom microcomputer controlled universal tester |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802224A (en) * | 2017-03-20 | 2017-06-06 | 杭州邦威机电控制工程有限公司 | A kind of modularization electro-hydraulic servo vertical load loading device |
| CN107941500A (en) * | 2017-12-20 | 2018-04-20 | 吉林大学 | The reliability test of numerically-controlled machine tool elasticity chuck |
| CN109186658A (en) * | 2018-09-28 | 2019-01-11 | 西安交通大学 | A kind of conductive plastic potentiometer rating test device and method |
| CN113465906A (en) * | 2021-07-30 | 2021-10-01 | 杭州高品自动化设备有限公司 | Door actuator EOL testing mechanism and working method thereof |
| CN113465906B (en) * | 2021-07-30 | 2023-12-26 | 杭州高驰智能装备有限公司 | EOL test mechanism of door actuator and working method thereof |
| CN115343075A (en) * | 2022-07-29 | 2022-11-15 | 中国第一汽车股份有限公司 | Steering pull rod rigidity measuring device and testing method for dynamic model identification |
| CN115343074A (en) * | 2022-07-29 | 2022-11-15 | 中国第一汽车股份有限公司 | Steering gear body assembly rigidity measuring device and method for dynamic model identification |
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Inventor after: Xiao Pan Inventor after: Yu Renjie Inventor after: Tang Jiabing Inventor after: Zhou Zhou Inventor after: Qiu Hongyou Inventor after: Zhou Jianwen Inventor after: Lin Xin Inventor after: Ma Yuanyuan Inventor after: He Changjiang Inventor after: Cai Chuan Inventor before: Xiao Pan Inventor before: Tang Jiabing Inventor before: Qiu Hongyou Inventor before: Zhou Jianwen Inventor before: Lin Xin Inventor before: He Changjiang Inventor before: Cai Chuan |
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Application publication date: 20170315 |
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