CN109682516A - A kind of frictional torsion-testing caliberating device and method - Google Patents
A kind of frictional torsion-testing caliberating device and method Download PDFInfo
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- CN109682516A CN109682516A CN201910098626.3A CN201910098626A CN109682516A CN 109682516 A CN109682516 A CN 109682516A CN 201910098626 A CN201910098626 A CN 201910098626A CN 109682516 A CN109682516 A CN 109682516A
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- caliberating device
- frictional
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000008859 change Effects 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000004088 simulation Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 12
- 230000005611 electricity Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/16—Rotary-absorption dynamometers, e.g. of brake type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to test fixture technical field, a kind of frictional torsion-testing caliberating device and method are disclosed.The frictional torsion-testing caliberating device includes rotation calibration axis, and input terminal is connected to motor to be calibrated, is provided with torque sensor on the rotation calibration axis；Brake disc is set on the rotation calibration axis, and is rotated synchronously with rotation calibration axis；Friction plate can apply frictional force to the upper surface of the brake disc and/or lower surface；Pressure driving part, for applying normal pressure to the friction plate.Frictional torsion-testing caliberating device independent design in the present invention, it is light simple, equipment calibration can be tested under recession, light simple, plug and play is convenient, flexible.This device is loaded by applying the load simulation of consecutive variations, can accurately demarcate the torque value of servo motor.
Description
Technical field
The present invention relates to test fixture technical field more particularly to a kind of frictional torsion-testing caliberating device and methods.
Background technique
In the prior art automation equipment to have internal screw thread or when detecting of externally threaded workpiece, be typically chosen compared with
The motor of small-power and output torque, motor drive thread gage to be selected into workpiece, if it is possible to when being smoothly threaded in or out, then sentence
Determine screw thread qualification.If thread gage cannot smoothly be threaded in or out workpiece, clamping stagnation or directly stuck, automation equipment can be generated
It will call the police, this workpiece of warning note worker is unqualified.
But if thread gage clamping stagnation or stuck during screw-in, motor easily overloads, and causes motor to burn out, and right
Thread gage easily causes destruction.When thread gage screws in the internal screw thread or external screw thread tension of workpiece, if mandatory screw-in, easily leads to
Workpiece screw thread thoroughly damages, and makes to scrap by the workpiece that secondary operation becomes pieces O.K., detection process is not easy to control.
Summary of the invention
The purpose of the present invention is to provide a kind of frictional torsion-testing caliberating device and method, this device is connected by applying
The load simulation load of continuous variation, can accurately demarcate the torque value of servo motor.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of frictional torsion-testing caliberating device and method are provided, comprising:
Rotation calibration axis, input terminal are connected to motor to be calibrated, are provided with torque sensing on the rotation calibration axis
Device；
Brake disc is set on the rotation calibration axis, and is rotated synchronously with rotation calibration axis；
Friction plate can apply frictional force to the upper surface of the brake disc and/or lower surface；
Pressure driving part, for applying normal pressure to the friction plate.
Preferably, the pressure driving part is cylinder, and the output end of the cylinder is connected to the friction plate.
It preferably, further include ratio adjusting valve, the ratio adjusting valve is connected to the cylinder, for adjusting the cylinder
Admission pressure.
Preferably, rotation calibration axis includes sequentially connected upper shaft, middle shaft and lower rotary shaft, the middle shaft and
The upper shaft, the lower rotary shaft are connected by shaft coupling；
The torque sensor is set to the middle shaft.
Preferably, further include shell, gas source interface is provided on the shell, the air inlet connection of the gas source interface is outer
The gas outlet of portion's gas source, the gas source interface connects the ratio adjusting valve.
Preferably, further include the support plate being set in the shell, bearing is provided in the support plate, it is described above to turn
Axis and the lower rotary shaft are by the bearing rotational support.
It preferably, further include the locating piece being set in the support plate, the locating piece is described to be calibrated for positioning
Motor.
A kind of side that test calibration is carried out using above-mentioned frictional torsion-testing caliberating device is additionally provided in the present invention
Method, comprising:
Motor to be calibrated drives rotation mark fixed-axis rotation；
The normal pressure applied to friction plate is adjusted by pressure driving part, to change between the friction plate and brake disc
Frictional force；
The torque that the torque sensor synchronous detection friction plate and the brake disc are generated by frictional force；
Record the torque value of the torque sensor test, the electric current and the pressure driving part of the motor to be calibrated
The relation curve between normal pressure three applied to the friction plate, and demarcate the operating current of the motor to be calibrated.
Preferably, the pressure driving part is cylinder, applies pressure to the friction plate by cylinder.
Preferably, the admission pressure of the cylinder is adjusted by ratio adjusting valve, is rubbed to control the cylinder to described
The normal pressure that pad applies.
Beneficial effects of the present invention: driving rotation mark fixed-axis rotation by the motor to be calibrated in equipment in the present invention,
To drive disc rotation.Change the normal pressure of contact of the friction plate with brake disc by pressure driving part, to change two
The frictional force of person, the torque that both torque sensor tests generate, and controller is transferred data to, obtain motor rotational parameters number
According to the change curve with torque.In the case where the required torque of known good workpiece for measurement, controller is according to the change of record
Change the running parameter of curve motor to be calibrated.When the equipment with this motor is when detecting workpiece for measurement, it is only necessary to according to electricity
The running parameter of machine calibration, that is, can determine that whether workpiece for measurement is qualified.
Frictional torsion-testing caliberating device independent design in the present invention, it is light simple, equipment calibration can be tested
Recession is lower, and light simple, plug and play is convenient, flexible.This device is loaded by applying the load simulation of consecutive variations, can
The torque value for accurately demarcating servo motor after servo motor is calibrated, detects workpiece by servo motor later, with servo electricity
The current work range of the calibration of machine directly as with survey workpiece whether He Ge standard.
Detailed description of the invention
Fig. 1 is the perspective view of frictional torsion-testing caliberating device of the invention；
Fig. 2 is the cross-sectional view of frictional torsion-testing caliberating device of the invention；
Fig. 3 is the structural schematic diagram of an angle of the internal structure of frictional torsion-testing caliberating device of the invention
(not including shell)；
Fig. 4 is the structural schematic diagram of another angle of the internal structure of frictional torsion-testing caliberating device of the invention
(not including shell).
In figure:
1, rotation calibration axis；11, upper shaft；12, middle shaft；13, lower rotary shaft；14, shaft coupling；
2, torque sensor；
3, brake disc；
4, friction plate；
5, pressure driving part；
6, ratio adjusting valve；
7, shell；71, gas source interface；72, line interface is controlled；73, locating piece；
8, bearing；
9, support plate；91, bottom plate；92, side support plate；93, support column.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
In the prior art in test piece internal screw thread or externally threaded equipment, screw thread is directly connected to generally by motor
Rule rotation, screws in internal screw thread by thread gage or screws cooperation with external screw thread, to judge whether workpiece is qualified.The work of motor
Be as state it is unfixed, the working condition of motor is adjusted according to thread gage and internal screw thread and externally threaded degree of cooperation
Whole, in such cases, the control program of complete closed-loop control is complicated.When thread gage cannot be normally threaded in or out, there is clamping stagnation
When, then alarm, also easily motor is caused to overload, motor is easily burnt.
For this purpose, a kind of frictional torsion-testing caliberating device is provided in the present embodiment, to the motor in each equipment
Acceptable operation range is demarcated, to allow motor when driving thread gage test workpiece for measurement, faster test is gone to work
Whether part is qualified.
As Figure 1-Figure 4, above-mentioned frictional torsion-testing caliberating device includes rotation calibration axis 1, brake disc 3, friction
Piece 4, pressure driving part 5, ratio adjusting valve 6, controller, shell 7 and support plate 9.Wherein, torque sensor 2 and pressure-driven
Part 5 is all connected to controller.
Support plate 9 includes bottom plate 91 and side support plate 92, is both located at the inside of shell 7.In order to more easily demarcate
To measured motor, locating piece 73 is provided in the present embodiment on the lower surface of bottom plate 91, locating piece 73 is fixedly mounted in equipment
The corresponding position of workpiece for measurement for test, for positioning above-mentioned caliberating device.
Side support plate 92 is fixed by two supports of support column 93.Side support plate 92 is used for the electricity fixed in this caliberating device
Gas element.
Rotation calibration 1 input terminal of axis is connected to motor to be calibrated in equipment, is provided with torque sensing on rotation calibration axis 1
Device 2, torque sensor 2 are used to detect the torque of rotation calibration axis 1.Specifically, in the present embodiment rotation calibration axis 1 include according to
The upper shaft 11 of secondary connection, middle shaft 12 and lower rotary shaft 13.Middle shaft 12 and upper shaft 11, lower rotary shaft 13 pass through shaft coupling 14
Upper shaft 11, middle shaft 12 and lower rotary shaft 13, are together in series by connection by shaft coupling 14.Pass through wherein torque sensor 2
Specific constructive form can be according to actual selection.
Specifically, upper shaft 11 is used as torque input shaft, and torque sensor 2 is set to middle shaft 12, on lower rotary shaft 13
It is provided with the shaft shoulder, the side of brake disc 3 presses on the shaft shoulder, and brake disc 3 is circle, center and the lower rotary shaft 13 of brake disc 3
Center is concentric, and brake disc 3 can be rotated together with lower rotary shaft 13.
Rotation calibration axis 1 can be rotated relative to shell 7, specifically, be respectively provided in side support plate 92 and on bottom plate 91
There is bearing mounting base, bearing 8 is mounted in above-mentioned bearing mounting base, and upper shaft 11 and lower rotary shaft 13 pass through 8 rotational support of bearing.
Its middle (center) bearing 8 is set in shell 7, and is supported using shell 7 as fixed.
Friction plate 4 can upper surface with brake disc 3 and/or following table face contact, pressure driving part 5 is used for friction plate 4
Apply normal pressure.Preferably, the pressure driving part 5 in the present embodiment is clamping jaw cylinder, and friction plate 4 is two, is located at system
The two sides of Moving plate 3.Two friction plates 4 are separately mounted on two clamping jaws of clamping jaw cylinder, pass through of the clamping jaw of clamping jaw cylinder
It closes, so as to adjust the frictional force between two friction plates 4 and brake disc 3.
Above-mentioned clamping jaw cylinder is mounted on the bottom surface of shell 7 by clamping jaw cylinder, and installation site can also be according to reality
It is adjusted.
In addition, above-mentioned friction plate 4 can also be one, friction plate 4 is only connect with the upper surface of brake disc 3 or lower surface
Touching, pressure driving part 5 can also be general common cylinder, apply normal pressure to friction plate 4 by cylinder, adjust 4 He of friction plate
The frictional force of brake disc 3, so as to adjust torque.
The installation site of above-mentioned cylinder can be adjusted according to the actual situation.
Further, gas source interface 71 is provided on shell 7, gas source interface 71 is for connecting external air source.Gas source connects
Mouth 71 is connected to ratio adjusting valve 6, and above-mentioned clamping jaw cylinder is connected to ratio adjusting valve 6, passes through ratio adjusting valve 6 and controls clamping jaw gas
The admission pressure of cylinder, thus the normal pressure between two friction plates 4 of control and brake disc 3, motor to be calibrated drives rotation mark
Dead axle 1 rotates, namely the torque of control between the two.
It is further preferred that being additionally provided with control line interface 72 on shell 7.Specifically, above-mentioned control line interface 72 is fast
Formula interface is inserted, for connecting external control program.
A kind of test calibration method is additionally provided in the present embodiment, utilizes the above-mentioned frictional torsion-testing in the present embodiment
Caliberating device.Above-mentioned test calibration method includes that motor to be calibrated drives rotation calibration axis 1 to rotate；Pass through pressure driving part 5
The normal pressure applied to friction plate 4 is adjusted, to change the frictional force between friction plate 4 and brake disc 3；Torque sensor 2 is same
Step detection friction plate 4 and the torque that is generated by frictional force of brake disc 3, controller record the test of torque sensor 2 torque value, to
The relation curve between normal pressure three that the electric current and pressure driving part 5 of the motor of calibration apply to friction plate 4.
Specifically, pressure driving part 5 is cylinder, applies pressure to friction plate 4 by cylinder.It is adjusted by ratio adjusting valve 6
The admission pressure of whole cylinder, to control the normal pressure that cylinder applies to friction plate 4.
Frictional torsion-testing caliberating device in the present embodiment is mainly used for the motor calibration before equipment factory.This reality
The original state for applying the frictional torsion-testing caliberating device in example is that frictional torsion-testing caliberating device is in separate state,
With the external world without contacting.In addition, internal clamping jaw cylinder is in open configuration, 2 number of torque sensor is reset, and axis rotates flexibly without card
It is stagnant.
Torque range value of the workpiece for measurement of known a certain type in qualification, before equipment factory, by above-mentioned frictional torsion
Square test calibration device is placed on corresponding position, i.e., replaces workpiece for measurement using above-mentioned caliberating device, locating piece 73 is installed
In the position of workpiece for measurement.Later, control line interface 72 and gas source interface 71 are connected.
The motor when motor and equipment of test calibration formally detect workpiece for measurement is same motor, this motor connection screw thread
Rule, thread gage connect upper shaft 11, carry out power input, and rotation calibration axis 1 is driven to rotate.
The test phase before equipment is dispatched from the factory, starting control program, the parameter on manual operation touch screen, manual control adjustment
The output pressure of ratio adjusting valve 6 to change the frictional resistance between two friction plates 4 and brake disc 3, and generates a resistance
Force square.
Parameters variation on touch screen can control in controller in equipment forms corresponding curent change, these air pressures, electricity
The electric current of machine and the variation of resistive torque will form corresponding curve.Because known workpiece for measurement be pieces O.K. when torque, upper
The corresponding current range of torque when qualified workpiece in curve, i.e., the current range that the motor in equipment is demarcated thus are stated, and is incited somebody to action
The current range of calibration is recorded to controller.
When this equipment tests workpiece for measurement, PLC control system can screw in the smooth situation of workpiece, adjustment according to thread gage
The electric current of motor, if current of electric works in the current range of above-mentioned calibration, by controlling the electric current of motor, to control electricity
The output torque of machine, until the smooth screw-in screw thread of thread gage.
If the operating current of motor except calibration range, illustrates that workpiece for measurement is unqualified workpiece.
The motor of distinct device, the mark of calibrated motor can be demarcated using above-mentioned frictional torsion-testing caliberating device
Constant current range may be different, and the parameter of calibrated motor can be recorded to controller.
Above-mentioned frictional torsion-testing caliberating device independent design, it is light simple, equipment calibration can be tested under recession
, light simple, plug and play is convenient, flexible.This device is loaded by applying the load simulation of consecutive variations, can be accurately
The torque value for demarcating servo motor after servo motor is calibrated, detects workpiece by servo motor later, with the mark of servo motor
Fixed current work range directly as with survey workpiece whether He Ge standard.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of frictional torsion-testing caliberating device characterized by comprising
Rotation calibration axis (1), input terminal are connected to motor to be calibrated, torque biography are provided on rotation calibration axis (1)
Sensor (2)；
Brake disc (3) is set on rotation calibration axis (1), and is rotated synchronously with rotation calibration axis (1)；
Friction plate (4) can apply frictional force to the upper surface of the brake disc (3) and/or lower surface；
Pressure driving part (5), for applying normal pressure to the friction plate (4).
2. frictional torsion-testing caliberating device according to claim 1, which is characterized in that the pressure driving part (5)
For cylinder, the output end of the cylinder is connected to the friction plate (4).
3. frictional torsion-testing caliberating device according to claim 2, which is characterized in that further include ratio adjusting valve
(6), the ratio adjusting valve (6) is connected to the cylinder, for adjusting the admission pressure of the cylinder.
4. frictional torsion-testing caliberating device according to claim 3, which is characterized in that axis (1) is demarcated in the rotation
Including sequentially connected upper shaft (11), middle shaft (12) and lower rotary shaft (13), the middle shaft (12) and the upper shaft
(11), the lower rotary shaft (13) is connected by shaft coupling (14)；
The torque sensor (2) is set to the middle shaft (12).
5. frictional torsion-testing caliberating device according to claim 4, which is characterized in that it further include shell (7), it is described
It is provided on shell (7) gas source interface (71), the air inlet of the gas source interface (71) connects external air source, the gas source interface
(71) gas outlet connects the ratio adjusting valve (6).
6. frictional torsion-testing caliberating device according to claim 5, which is characterized in that further include being set to outside described
Support plate (9) in shell is provided with bearing (8) on the support plate (9), the upper shaft (11) and the lower rotary shaft (13) by
Bearing (8) rotational support.
7. frictional torsion-testing caliberating device according to claim 6, which is characterized in that further include being set to the branch
Locating piece (73) on fagging (9), the locating piece (73) is for positioning the motor to be calibrated.
8. a kind of method that the frictional torsion-testing caliberating device using any one of claim 1-7 carries out test calibration,
It is characterised by comprising:
Motor to be calibrated drives rotation calibration axis (1) rotation；
The normal pressure applied to friction plate (4) is adjusted by pressure driving part (5), to change the friction plate (4) and braking
Frictional force between disk (3)；
The torque that torque sensor (2) the synchronous detection friction plate (4) and the brake disc (3) are generated by frictional force；
Record the torque value of the torque sensor (2) test, the electric current and the pressure driving part of the motor to be calibrated
(5) relation curve between the normal pressure three that Xiang Suoshu friction plate (4) applies, and demarcate the work of the motor to be calibrated
Electric current.
9. according to the method described in claim 8, it is characterized in that, the pressure driving part (5) is cylinder, by cylinder to institute
It states friction plate (4) and applies pressure.
10. according to the method described in claim 9, it is characterized in that, adjusting the air inlet of the cylinder by ratio adjusting valve (6)
Pressure, to control the normal pressure that the cylinder applies to the friction plate (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910098626.3A CN109682516A (en) | 2019-01-31 | 2019-01-31 | A kind of frictional torsion-testing caliberating device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910098626.3A CN109682516A (en) | 2019-01-31 | 2019-01-31 | A kind of frictional torsion-testing caliberating device and method |
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| CN109682516A true CN109682516A (en) | 2019-04-26 |
Family
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| CN201910098626.3A Pending CN109682516A (en) | 2019-01-31 | 2019-01-31 | A kind of frictional torsion-testing caliberating device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798249A (en) * | 2020-12-30 | 2021-05-14 | 东风汽车集团有限公司 | Device and method for detecting friction performance of EPB caliper piston and friction plate |
| WO2022242160A1 (en) * | 2021-05-20 | 2022-11-24 | 中国第一汽车股份有限公司 | Transfer case assembly clutch axial pressure calibration apparatus and calibration method thereof |
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