CN105806179B - Length measurement method and its device under a kind of truck drive shaft constant pressure - Google Patents
Length measurement method and its device under a kind of truck drive shaft constant pressure Download PDFInfo
- Publication number
- CN105806179B CN105806179B CN201610168805.6A CN201610168805A CN105806179B CN 105806179 B CN105806179 B CN 105806179B CN 201610168805 A CN201610168805 A CN 201610168805A CN 105806179 B CN105806179 B CN 105806179B
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- drive shaft
- truck drive
- measured
- servo motor
- truck
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses the length measurement methods and its device under a kind of truck drive shaft constant pressure, this method carries out truck drive shaft both ends to be measured gently to grab centering first, the axle center of the central siphon and telescopic that ensure truck drive shaft to be measured is located along the same line, AC servo motor is run with torque mode again, two postive stop baffles on fixed block and movable block are driven to compress two end faces of truck drive shaft to be measured, it is measured at a distance from two reference planes that two end faces of truck drive shaft to be measured are in contact using magnetic railings ruler, obtain length of the truck drive shaft to be measured in the case where setting force value, whether the length to judge truck drive shaft to be measured is qualified.Mechanism simple and compact of the present invention, production cost is low, and floor space is small, and measurement result is accurate.
Description
Technical field
The present invention relates to mechanical detection equipment technical fields, and more specifically more particularly to a kind of truck drive shaft is constant
Length measurement method under pressure and its device.
Background technology
Truck drive shaft be universal driving device transmission shaft in be capable of the axis of passing power, it is a high rotating speed, few
The rotary body of bearing, truck drive shaft are the most important components of passing power in car transmissions, it with gearbox, driving
The power of engine is passed to wheel by bridge together, and automobile is made to generate driving force.
Truck drive shaft is typically to be made of central siphon, telescopic and universal joint, the flexible both ends for being set on central siphon, two
Telescopic connects the both ends of central siphon by two universal joints respectively.Telescopic can automatically adjust between speed changer and drive axle
Distance change, universal joint realize two axis for ensureing that transmission output shaft and drive axle input shaft connect the variation of axis angle
Constant velocity tramsmission；The junction of central siphon and universal joint sets that there are one baffle rings there are one connecting shaft bowl in axis bowl, baffle ring will be universal
Section blocks, and universal joint is made to link together with central siphon.
Truck drive shaft before use, must to it, whether qualification is detected, the very important detection of one of which
Mesh is exactly to detect the length of truck drive shaft under a certain pressure, and the required precision of the length is very high, is directly related to
Can truck drive shaft normal use.Since the both ends of truck drive shaft are equipped with universal joint, it can not usually ensure truck drive shaft
Central siphon and two telescopics axle center on same straight line, therefore how to feel relieved, that is, ensure the pipe of truck drive shaft and stretch
The axle center of contracting set is that the length value measured in the case that the design difficulty of the present invention is not felt relieved is not on same straight line
Accurately.Simultaneously in the case of centering, truck drive shaft cannot be by excessive instantaneous pressure during measuring length.Right
During truck drive shaft carries out linear measure longimetry, it usually needs surveyed to truck drive shaft under the action of constant pressure
Amount, and when applying the power, instantaneous force value is excessive to generate bending directly at universal joint, lead to the axle center of central siphon and telescopic
Offset causes measurement result inaccurate to influence centering effect, therefore it is pre- how to ensure that the force value when measuring does not exceed
If value is also the difficult point of the present invention.
Invention content
It is an object of the invention in view of the above shortcomings of the prior art, provide under a kind of truck drive shaft constant pressure
Length measurement method and its device, this method can be with the force compresses truck drive shaft of setting, and measures the lower vapour of constant force effect
The length of vehicle transmission shaft, measurement result is accurate, and measurement efficiency is high.
The technical proposal of the invention is realized in this way：A kind of length-measuring appliance under truck drive shaft constant pressure,
It is surveyed including pedestal, sliding rail, fixed plate, movable plate, wind, postive stop baffle, cylinder clamping device, motor driver, pulling force
Amount device and support device, the sliding rail are fixed on the base, and fixed plate and movable plate, the fixation are provided on the sliding rail
Plate and movable plate bottom are fixed to be connected with the matched sliding shoe of the sliding rail, side of the fixed plate far from the movable plate
Connect tension measuring device；The tension measuring device includes force snesor and sensor fixed seat, and sensor fixed seat is fixed on
On pedestal, one end of force snesor connects sensor fixed seat, and the other end is connected and fixed plate；Above the fixed plate and movable plate
It is respectively and fixedly provided with the cylinder clamping device for truck drive shaft both ends to be measured to be clamped, cylinder clamping device includes driving cylinder and folder
Tool, fixture are used to be clamped the both ends of truck drive shaft to be measured, and driving cylinder is used to drive the clamping and release of the fixture；It is described
Fixture includes fixed chuck and active chuck, and active chuck is fixed on the piston rod end of corresponding driving cylinder, drives cylinder band
Dynamic active chuck is moved to fixed chuck direction, realizes the centering or clamping of truck drive shaft to be measured；The motor driver
It is fixed on the bottom of movable plate including AC servo motor, shaft coupling, ball-screw and fixed sliding block, the fixed sliding block, Gu
Fixed slider is equipped with connects AC servo motor with the matched threaded hole of the ball-screw, one end of the ball-screw,
The other end passes through the threaded hole on fixed sliding block, the AC servo motor to be fixed on the sliding rail by motor mounting plate,
The movable plate is driven to be slided along the sliding rail when AC servo motor movement；The top of the fixed plate and movable plate is also
It is respectively equipped with the postive stop baffle being arranged perpendicular to slide direction, two postive stop baffles are respectively provided at the outside of two fixtures, two
Postive stop baffle is for limiting the both ends of truck drive shaft to be measured；The support device includes support plate, two support shafts
It holds and is provided with the T-type sliding slot perpendicular to slide direction with two bearing sliders, the support plate top, two spring bearings are solid respectively
It being scheduled on two bearing sliders, two bearing sliders are arranged in the T-type sliding slot and can move along a straight line along the T-type sliding slot,
Location hole is equipped on two bearing sliders, two bearing sliders with the matched positioning bolt of the location hole by being fixed on
In the support plate；It is additionally provided with for magnetic railings ruler on pedestal below the sliding rail；The wind connects the movable plate simultaneously
Initial position for adjusting the movable plate.
A kind of length measurement method under truck drive shaft constant pressure, this method use a kind of constant pressure of truck drive shaft
Length-measuring appliance under power, this method comprises the following steps：
（1）Movable plate is adjusted to suitable position using wind, is put into standard component, standard component is and vehicle transmission to be measured
The both ends of the identical stiff shaft of central siphon diameter of axis, standard component are respectively put into the fixture of two cylinder clamping device front ends, to
Air inlet in the air admission hole of two driving cylinders, two driving cylinders drive fixture to clamp the both ends of standard component；Mobile spring bearing
The bearing slider of lower section adjusts the position of spring bearing, makes two pairs of spring bearings against standard component and locking positioning bolt, completes
The positioning of spring bearing stops the gas supply of driving cylinder at this time, and fixture restPoses, and takes standard component away, before completing detection
Spring bearing position work；
（2）It is put into truck drive shaft to be measured, the air inlet into the air admission hole of two driving cylinders, two driving cylinder drivings two
The both ends of a clamp truck drive shaft to be measured, then AC servo motor is run with torque mode, AC servo motor drives
Movable plate is moved along slide direction away from fixed plate direction, and truck drive shaft to be measured gradually stretches；
（3）AC servo motor runs stop motion after 2-3s, and truck drive shaft to be measured is in elongated condition, and its at this time
The axle center of central siphon and telescopic is on same straight line；The blowing model of two driving cylinders of switching, cylinder is driven to two
Air admission hole and venthole supply simultaneously, and two driving cylinders provide and provide smaller centering power to fixture, and two fixtures gently press from both sides
The firmly both ends of truck drive shaft to be measured；
（4）Antiport AC servo motor, AC servo motor are still run with torque mode, AC servo motor band
Dynamic movable plate is moved along slide direction to fixed plate direction, should during two postive stop baffles above movable plate and fixed plate
It is contacted with truck drive shaft both ends of the surface to be measured and gradually compresses truck drive shaft to be measured, utilize force sensor measuring in this process
The pressure that truck drive shaft to be measured is subject to, and closed-loop control is carried out to AC servo motor by force snesor, in force snesor
When the power detected reaches preset value, AC servo motor keeps the torque to move, and ensures that the force value that force snesor detects is
Certain value；
（5）The reading of magnetic railings ruler is read, the data that magnetic railings ruler is read are the distance value of AC servo motor movement, the distance
Value in fluctuation in the range of, during force snesor retentivity is constant, when the variation range that magnetic railings ruler detects ±
In the range of 0.01mm and after stablizing 3s or more, the reading of magnetic railings ruler is read, and using the reading as truck drive shaft to be measured
Length；
（6）Antiport AC servo motor 2-3s after magnetic railings ruler measures stops the gas supply of two driving cylinders, this
When fixture unclamp, manually or automatically mode removes truck drive shaft to be measured, completes single truck drive shaft to be measured
Detection；
（7）Carry out the detection of next truck drive shaft to be measured, it is only necessary to repeat step 2-6.
Further, the internal diameter of cylinder of the driving cylinder is 100mm, diameter of piston rod 30mm, and driving cylinder is equipped with
Two operating modes of centering and clamping, clamp the normal mode of operation that pattern is cylinder, drive the air inlet gas inlet hole of cylinder at this time,
Venthole outlet, the clamping force size that driving cylinder provides are 3150-3800N；Under centering pattern, air admission hole and venthole are simultaneously
The pressure of air inlet, the two air inlet is identical, and band is that the forced area of piston is different, the centering power for driving cylinder to provide at this time
F =P×SPiston-P×（SPiston-SPiston rod）= P×SPiston rod
Wherein P is pressure, SPistonFor piston cross-section area, SPiston rodIt is accumulated for cross section of the piston rod, F is the centering that cylinder provides
Power, centering power size are 100-120N, and centering power is only used for stretching truck drive shaft, ensure the telescopic of truck drive shaft with
The axle center of central siphon does not influence truck drive shaft and horizontally slips in fixture on same straight line.
Further, the position of the fixture clamping is the splined section of truck drive shaft to be measured, fixture and automobile to be measured
The rigidity of transmission shaft contact portion be less than truck drive shaft splined section to be measured rigidity, i.e., fixed chuck and active chuck with wait for
The rigidity for surveying truck drive shaft contact portion is less than the rigidity of truck drive shaft splined section to be measured.
Further, the V-shaped design of the contact surface of the active chuck and truck drive shaft.
Further, when the specifications and models of truck drive shaft to be measured change, it is only necessary to take the standard component of same specification
Step 1 is repeated, recycle step 2-6 carries out the truck drive shaft length detection to be measured of the specification.
The beneficial effects of the present invention are：
1, the configuration of the present invention is simple is compact, and production cost is low, and occupies little space, and can realize the length of truck drive shaft
It measures, high certainty of measurement will not be influenced by automobile driving shaft bending.
2, the present invention first elongates truck drive shaft to be measured during the linear measure longimetry of truck drive shaft, protects
The axle center of the central siphon and telescopic of demonstrate,proving truck drive shaft to be measured on the same line, then imposes the power consistent with axis direction, should
The truck drive shaft to be measured that will likely be bent is forced to stretch in the process, the axle center of the central siphon and telescopic that ensure truck drive shaft exists
On same straight line, the accuracy of measurement result is improved.
3, the present invention realizes centering and clamping to truck drive shaft, the gap edge that the two needs simultaneously using driving cylinder
It is very big, and same driving cylinder usually cannot achieve load two power of different sizes under normal conditions, the present invention utilizes driving
The venthole of cylinder carries out air inlet and outlet to realize the force value for changing the same driving cylinder output respectively, saves equipment and accounts for
With space, the cost of equipment is reduced.
4, it first uses driving cylinder to clamp the both ends of truck drive shaft with smaller power when present invention operation, realizes that automobile passes
The centering of moving axis, then drive two postive stop baffles to compress truck drive shaft with torque mode by AC servo motor, reaching
AC servo motor keeps the torque rotation when force value of setting, is measured afterwards for a period of time in the force value that force snesor is kept constant
The length of truck drive shaft, improves the accuracy of measurement result, while avoiding in measurement process because larger power will be to be measured
Truck drive shaft bends the problem for leading to measurement result inaccuracy.
5, the entire measuring device of the present invention is arranged on sliding rail, by between the manual adjustment fixing plate of wind and movable plate
Distance, disclosure satisfy that the detection of different size truck drive shaft.
6, the present invention by support device to being supported in the middle part of truck drive shaft, using first clamp both ends again to transmission
The method being supported in the middle part of axis, when the truck drive shaft to same batch different size is detected, it is only necessary to first in detection
The detection of the truck drive shaft of the same specification of batch when being adjusted to support device when a truck drive shaft, it is convenient
Detection process.
7, the present invention carries out measurement of length using magnetic railings ruler can effectively prevent influence of the external interference to measurement effect,
Improve the accuracy of measurement.
8, during truck drive shaft practical measurement, the both ends of truck drive shaft can not usually determine the benchmark of measurement
Face；And the both ends of truck drive shaft are abutted two pieces of postive stop baffles by the present invention, two end faces of postive stop baffle and truck drive shaft connect
Tactile face is set as two reference planes, magnetic railings ruler is practical measure be two reference planes distance, it is convenient to measure, and greatly improves
The accuracy of measurement.
Description of the drawings
The present invention is described in further detail for embodiment in below in conjunction with the accompanying drawings, but does not constitute to the present invention's
Any restrictions.
Fig. 1 is the structural schematic diagram of present invention truck drive shaft to be measured.
Fig. 2 is the structural schematic diagram of the length-measuring appliance under a kind of truck drive shaft constant pressure of the present invention.
In figure, 1- pedestals, 2- sliding rails, 3- fixed plates, 4- movable plates, 5- postive stop baffles, 6- sliding shoes, 7- driving cylinder,
8- fixed chucks, 9- active chucks, 10- AC servo motors, 11- truck drive shafts to be measured, 12- fix sliding block, 13- power sensing
Device, 14- sensors fixed seat, 15- motor mounting plates, 16- support plates, 17- bearing sliders, 18- spring bearings, 19- air admission holes,
20- ventholes.
Specific implementation mode
Refering to fig. 1 with shown in Fig. 2, the length-measuring appliance under a kind of truck drive shaft constant pressure of the invention, including
Pedestal 1, sliding rail 2, fixed plate 3, movable plate 4, wind, postive stop baffle 5, cylinder clamping device, motor driver, pulling force are surveyed
Amount device and support device, the sliding rail 2 are fixed on pedestal 1, and fixed plate 3 and movable plate 4, institute are provided on the sliding rail 2
The fixation and 2 matched sliding shoe 6 of the sliding rail of fixed plate 3 and 4 bottom of movable plate is stated, the fixed plate 3 is far from the work
The side of movable plate 4 connects tension measuring device；The tension measuring device includes force snesor 13 and sensor fixed seat 14, is passed
Sensor fixed seat 14 is fixed on pedestal 1, and one end connection sensor fixed seat 14 of force snesor 13, the other end is connected and fixed plate
3；The fixed plate 3 and 4 top of movable plate are respectively and fixedly provided with the cylinder clamping device for 11 both ends of truck drive shaft to be measured to be clamped,
Cylinder clamping device includes driving cylinder 7 and fixture, and fixture is used to be clamped the both ends of truck drive shaft 11 to be measured, drives cylinder 7
Clamping and release for driving the fixture；The fixture includes fixed chuck 8 and active chuck 9, and active chuck 9 is fixed on
The piston rod end of corresponding driving cylinder 7, driving cylinder 7 drive active chuck 9 to be moved to 8 direction of fixed chuck, realize to be measured
The centering or clamping of truck drive shaft 11；The motor driver include AC servo motor 10, shaft coupling, ball-screw and
Fixed sliding block 12, the fixed sliding block 12 are fixed on the bottom of movable plate 4, and fixed sliding block 12 is equipped with and the ball-screw phase
One end of the threaded hole of cooperation, the ball-screw connects AC servo motor 10, and the other end passes through the spiral shell on fixed sliding block 12
Pit, the AC servo motor 10 are fixed on by motor mounting plate 15 on the sliding rail, and the AC servo motor 10 is transported
The movable plate 4 is driven to be slided along the sliding rail 2 when dynamic；The top of the fixed plate 3 and movable plate 4 further respectively have perpendicular to
The postive stop baffle 5 of slide direction setting, two postive stop baffles 5 are respectively provided at the outside of two fixtures, and two postive stop baffles 5 are used for
The both ends of truck drive shaft 11 to be measured are limited；The support device includes 16, two spring bearings 18 and two of support plate
A bearing slider 17,16 top of the support plate are provided with the T-type sliding slot perpendicular to slide direction, and two spring bearings 18 are solid respectively
It is scheduled on two bearing sliders 17, two bearing sliders 17 are arranged in the T-type sliding slot and can be transported along the T-type sliding slot straight line
It is dynamic, be equipped with location hole on two bearing sliders 17, two bearing sliders 17 by with the matched positioning spiral shell of the location hole
Bolt is fixed in the support plate 16；It is additionally provided with for magnetic railings ruler on pedestal 1 below the sliding rail；The wind connects institute
State movable plate 4 and the initial position for adjusting the movable plate 4.
A kind of length measurement method under truck drive shaft constant pressure, this method use a kind of constant pressure of truck drive shaft
Length-measuring appliance under power, this method comprises the following steps：
（1）Movable plate 4 is adjusted using wind and arrives suitable position, is put into standard component, and standard component is to be passed with automobile to be measured
The identical stiff shaft of central siphon diameter of moving axis 11, the both ends of standard component are respectively put into the fixture of two cylinder clamping device front ends
In, the air inlet into the air admission hole 19 of two driving cylinders 7, two driving cylinders 7 drive fixture to clamp the both ends of standard component；It is mobile
The bearing slider 17 of 18 lower section of spring bearing, adjusts the position of spring bearing 18, two pairs of spring bearings 18 is made to abut standard component simultaneously
Locking positioning bolt completes the positioning of spring bearing 18, stops the gas supply of driving cylinder 7 at this time, and fixture restPoses, takes
Standard component is walked, the spring bearing 18 before detection is completed and positions work；
（2）It is put into truck drive shaft 11 to be measured, the air inlet into the air admission hole 19 of two driving cylinders 7, two driving cylinders 7
The both ends of two clamps truck drive shaft 11 to be measured are driven, then AC servo motor 10 is run with torque mode, exchange is watched
Taking motor 10 drives movable plate 4 to be moved away from 3 direction of fixed plate along 2 direction of sliding rail, and truck drive shaft 11 to be measured gradually stretches；
（3）AC servo motor 10 runs stop motion after 2-3s, and truck drive shaft 11 to be measured is in elongated condition at this time,
And the axle center of its central siphon and telescopic is on same straight line；The blowing model of two driving cylinders 7 of switching, to two driving gas
The air admission hole 19 and venthole 20 of cylinder 7 supply simultaneously, and two driving cylinders 7, which are provided, provides smaller centering power to fixture, two
Fixture gently clamps the both ends of truck drive shaft 11 to be measured；
（4）Antiport AC servo motor 10, AC servo motor 10 are still run with torque mode, AC servo electricity
Machine 10 drives movable plate 4 to be moved to 3 direction of fixed plate along 2 direction of sliding rail, 3 top of movable plate 4 and fixed plate during being somebody's turn to do
Two postive stop baffles 5 contact with 11 both ends of the surface of truck drive shaft to be measured and gradually compress truck drive shaft 11 to be measured, in the process
It is middle that the pressure that truck drive shaft 11 to be measured is subject to is measured using force snesor 13, and by force snesor 13 to AC servo motor
10 carry out closed-loop control, and when the power that force snesor 13 detects reaches preset value, AC servo motor 10 keeps torque fortune
It is dynamic, ensure that the force value that force snesor 13 detects is certain value；
（5）The reading of magnetic railings ruler is read, the data that magnetic railings ruler is read are the distance value that AC servo motor 10 moves, should be away from
From value in the range of fluctuation, during 13 retentivity of force snesor is constant, when the variation range that magnetic railings ruler detects
In the range of ± 0.01mm and after stablizing 3s or more, the reading of magnetic railings ruler is read, and using the reading as vehicle transmission to be measured
The length of axis 11；
（6）Antiport AC servo motor 102-3s after magnetic railings ruler measures stops the confession of two driving cylinders 7
Gas, at this time fixture unclamp, manually or automatically mode removes truck drive shaft 11 to be measured, completes single automobile to be measured and passes
The detection of moving axis 11；
（7）Carry out the detection of next truck drive shaft to be measured 11, it is only necessary to repeat step 2-6.
The internal diameter of cylinder of the driving cylinder 7 is 100mm, diameter of piston rod 30mm, and driving cylinder 7 is equipped with centering and folder
Tight two operating modes clamp the normal mode of operation that pattern is cylinder, drive 19 air inlet of air admission hole of cylinder 7, outlet at this time
20 outlet of hole, the clamping force size that driving cylinder 7 provides are 3150-3800N；Under centering pattern, air admission hole 19 and venthole 20
Air inlet simultaneously, the pressure of the two air inlet is identical, and band is that the forced area of piston is different, the centering power for driving cylinder 7 to provide at this time
F =P×SPiston-P×（SPiston-SPiston rod）= P×SPiston rod
Wherein P is pressure, SPistonFor piston cross-section area, SPiston rodIt is accumulated for cross section of the piston rod, F is the centering that cylinder provides
Power, centering power size are 100-120N, and centering power is only used for stretching truck drive shaft, ensure the telescopic of truck drive shaft with
The axle center of central siphon does not influence truck drive shaft and horizontally slips in fixture on same straight line.
The position of the fixture clamping is the splined section of truck drive shaft 11 to be measured, fixture and truck drive shaft 11 to be measured
The rigidity of contact portion be less than 11 splined section of truck drive shaft to be measured rigidity, i.e., fixed chuck 8 and active chuck 9 with it is to be measured
The rigidity of 11 contact portion of truck drive shaft is less than the rigidity of 11 splined section of truck drive shaft to be measured.
The V-shaped design of contact surface of the active chuck 9 and truck drive shaft.
When the specifications and models of truck drive shaft 11 to be measured change, it is only necessary to the standard component of same specification be taken to repeat step
1, recycle step 2-6 carry out 11 length detection of truck drive shaft to be measured of the specification.
Embodiment provided above is the better embodiment of the present invention, only is used for facilitating illustrating the present invention, not to this hair
It is bright to make any form of restriction, any those of ordinary skill in the art, if not departing from the put forward skill of the present invention
In the range of art feature, using the equivalent embodiment for locally changing or modifying made by disclosed technology contents, and
Without departing from the technical feature content of the present invention, in the range of still falling within the technology of the present invention feature.
Claims (4)
1. the length measurement method under a kind of truck drive shaft constant pressure, it is characterised in that：This method is passed using a kind of automobile
Length-measuring appliance under moving axis constant pressure, this method comprises the following steps：
（1）Movable plate is adjusted to suitable position using wind, is put into standard component, standard component is and truck drive shaft to be measured
The both ends of the identical stiff shaft of central siphon diameter, standard component are respectively put into the fixture of two cylinder clamping device front ends, to two
Air inlet in the air admission hole of cylinder, two driving cylinders is driven to drive fixture to clamp the both ends of standard component；Below mobile spring bearing
Bearing slider, adjust the position of spring bearing, make two pairs of spring bearings against standard component and locking positioning bolt, complete support
The positioning of bearing stops the gas supply of driving cylinder at this time, and fixture restPoses, and takes standard component away, completes the branch before detection
It supports bearing and positions work；
（2）It is put into truck drive shaft to be measured, the air inlet into the air admission hole of two driving cylinders, two driving cylinders drive two folders
Tool clamps the both ends of truck drive shaft to be measured, then runs AC servo motor, AC servo motor drive activity with torque mode
Plate is moved along slide direction away from fixed plate direction, and truck drive shaft to be measured gradually stretches；
（3）AC servo motor runs stop motion after 2-3s, and truck drive shaft to be measured is in elongated condition, and its central siphon at this time
Axle center with telescopic is on same straight line；The blowing model of two driving cylinders of switching, the air inlet to two driving cylinders
Hole and venthole supply simultaneously, and two driving cylinders provide and provide smaller centering power to fixture, and two fixtures are gently clamped and waited for
Survey the both ends of truck drive shaft；
（4）Antiport AC servo motor, AC servo motor are still run with torque mode, and AC servo motor, which drives, lives
Movable plate is moved along slide direction to fixed plate direction, should during two postive stop baffles above movable plate and fixed plate with wait for
It surveys truck drive shaft both ends of the surface to contact and gradually compress truck drive shaft to be measured, utilizes force sensor measuring to be measured in this process
The pressure that truck drive shaft is subject to, and closed-loop control is carried out to AC servo motor by force snesor, it is detected in force snesor
To power reach preset value when, AC servo motor keep the torque move, ensure that the force value that force snesor detects is certain
Value；
（5）The reading of magnetic railings ruler is read, the data that magnetic railings ruler is read are the distance value of AC servo motor movement, at the distance value
In the range of fluctuation, during force snesor retentivity is constant, when the variation range that magnetic railings ruler detects ±
In the range of 0.01mm and after stablizing 3s or more, the reading of magnetic railings ruler is read, and using the reading as truck drive shaft to be measured
Length；
（6）Antiport AC servo motor 2-3s after magnetic railings ruler measures stops the gas supply of two driving cylinders, presss from both sides at this time
Tool unclamps, and manually or automatically mode removes truck drive shaft to be measured, completes the detection of single truck drive shaft to be measured；
（7）Carry out the detection of next truck drive shaft to be measured, it is only necessary to repeat step 2-6.
2. the length measurement method under a kind of truck drive shaft constant pressure according to claim 1, it is characterised in that：Institute
The internal diameter of cylinder for stating driving cylinder is 100mm, diameter of piston rod 30mm, and driving cylinder, which is equipped with, feels relieved and clamp two Working moulds
Formula clamps the normal mode of operation that pattern is cylinder, and the air inlet gas inlet hole of cylinder, venthole outlet is driven to drive cylinder at this time
The clamping force size of offer is 3150-3800N；Under centering pattern, air admission hole and venthole air inlet simultaneously, the pressure of the two air inlet
Identical, band is that the forced area of piston is different, the centering power for driving cylinder to provide at this time
F =P×SPiston-P×（SPiston-SPiston rod）= P×SPiston rod
Wherein P is pressure, SPistonFor piston cross-section area, SPiston rodIt is accumulated for cross section of the piston rod, F is the centering power that cylinder provides, fixed
Mental and physical efforts size is 100-120N, and centering power is only used for stretching truck drive shaft, ensures the telescopic and central siphon of truck drive shaft
Axle center on same straight line, but do not influence truck drive shaft and horizontally slip in fixture.
3. the length measurement method under a kind of truck drive shaft constant pressure according to claim 1, it is characterised in that：Institute
The position for stating fixture clamping is the splined section of truck drive shaft to be measured, the rigidity of fixture and truck drive shaft contact portion to be measured
Less than the rigidity of truck drive shaft splined section to be measured, i.e. fixed chuck and active chuck and truck drive shaft contact portion to be measured
Rigidity be less than truck drive shaft splined section to be measured rigidity.
4. the length measurement method under a kind of truck drive shaft constant pressure according to claim 1, it is characterised in that：When
When the specifications and models of truck drive shaft to be measured change, it is only necessary to the standard component of same specification be taken to repeat step 1, recycle step
2-6 carries out the truck drive shaft length detection to be measured of the specification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610168805.6A CN105806179B (en) | 2016-03-23 | 2016-03-23 | Length measurement method and its device under a kind of truck drive shaft constant pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610168805.6A CN105806179B (en) | 2016-03-23 | 2016-03-23 | Length measurement method and its device under a kind of truck drive shaft constant pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105806179A CN105806179A (en) | 2016-07-27 |
| CN105806179B true CN105806179B (en) | 2018-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610168805.6A Expired - Fee Related CN105806179B (en) | 2016-03-23 | 2016-03-23 | Length measurement method and its device under a kind of truck drive shaft constant pressure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352766B (en) * | 2016-11-18 | 2019-07-12 | 成都世唯科技有限公司 | It is a kind of measurement pipe fitting positioning shaft shoulder to distance between groove device |
| CN110375610B (en) * | 2019-08-21 | 2024-04-12 | 武汉捷隆汽车电动转向系统有限公司 | Measuring device for offset of center point of automobile cross axle |
| CN114739550B (en) * | 2022-05-16 | 2024-02-20 | 横川机器人（深圳）有限公司 | Automatic measuring device for output torque of torque motor |
| CN117053653B (en) * | 2023-10-11 | 2024-01-26 | 万向钱潮股份公司 | Length measuring device and method for cover plate universal joint |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB477176A (en) * | 1936-07-20 | 1937-12-23 | Wilfred George Coram | Instrument for measuring perimeters of objects |
| FR2620223A1 (en) * | 1987-09-09 | 1989-03-10 | Inst Superieur Etat Surface | METHOD FOR SLIDING A MOBILE CARRIER ON A REFERENCE SURFACE AND ASSOCIATED DEVICE |
| CN1676950A (en) * | 2004-03-30 | 2005-10-05 | Smc株式会社 | Air servo cylinder apparatus and controlling method therefor |
| CN101458061A (en) * | 2008-12-18 | 2009-06-17 | 上海交通大学 | Constant velocity universal joint drive spindle assembly clearance test stand |
| CN101806568A (en) * | 2010-03-31 | 2010-08-18 | 温州市冠盛汽车零部件集团股份有限公司 | Tool for checking compressed length of vehicle driving shaft assembly |
| CN102430672A (en) * | 2012-01-19 | 2012-05-02 | 无锡科锐漫电子科技有限公司 | Pin arranging and cutting machine of thick-line magnetic-ring inductor |
| CN103808235A (en) * | 2014-02-14 | 2014-05-21 | 奇瑞汽车股份有限公司 | Gap detection device of constant velocity universal joint drive shaft assembly |
-
2016
- 2016-03-23 CN CN201610168805.6A patent/CN105806179B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB477176A (en) * | 1936-07-20 | 1937-12-23 | Wilfred George Coram | Instrument for measuring perimeters of objects |
| FR2620223A1 (en) * | 1987-09-09 | 1989-03-10 | Inst Superieur Etat Surface | METHOD FOR SLIDING A MOBILE CARRIER ON A REFERENCE SURFACE AND ASSOCIATED DEVICE |
| CN1676950A (en) * | 2004-03-30 | 2005-10-05 | Smc株式会社 | Air servo cylinder apparatus and controlling method therefor |
| CN101458061A (en) * | 2008-12-18 | 2009-06-17 | 上海交通大学 | Constant velocity universal joint drive spindle assembly clearance test stand |
| CN101806568A (en) * | 2010-03-31 | 2010-08-18 | 温州市冠盛汽车零部件集团股份有限公司 | Tool for checking compressed length of vehicle driving shaft assembly |
| CN102430672A (en) * | 2012-01-19 | 2012-05-02 | 无锡科锐漫电子科技有限公司 | Pin arranging and cutting machine of thick-line magnetic-ring inductor |
| CN103808235A (en) * | 2014-02-14 | 2014-05-21 | 奇瑞汽车股份有限公司 | Gap detection device of constant velocity universal joint drive shaft assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105806179A (en) | 2016-07-27 |
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