CN106017959B - Lead screw guide rails reliability test bench based on electro-hydraulic loading - Google Patents
Lead screw guide rails reliability test bench based on electro-hydraulic loading Download PDFInfo
- Publication number
- CN106017959B CN106017959B CN201610380856.5A CN201610380856A CN106017959B CN 106017959 B CN106017959 B CN 106017959B CN 201610380856 A CN201610380856 A CN 201610380856A CN 106017959 B CN106017959 B CN 106017959B
- Authority
- CN
- China
- Prior art keywords
- lead screw
- electro
- hydraulic
- guide rails
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/414—Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller
- G05B19/4147—Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller characterised by using a programmable interface controller [PIC]
Abstract
The present invention relates to a kind of lead screw guide rails reliability test bench based on electro-hydraulic loading, including lead screw guide rails part, load applying portion and automatic control part, the lead screw guide rails part includes upper, lower saddle and screw pair, on described, mutually matched guide rail is equipped between lower saddle, the upper saddle is equipped with simulation grinding wheel stressing device, the lower saddle is screwed on ground black iron by T-type, the screw pair is made of the feed screw nut and lead screw being threadedly engaged, the lead screw is connected by shaft coupling and servo motor, the load applying portion includes pedestal, the pedestal is connect with the Horizon ferropexy, the pedestal is equipped with direction adjustment organization, the upper surface of the direction adjustment organization is fixed with a left side by support plate, right support, the left side, shaft is fixed between right support, the shaft connection There is electro-hydraulic servo loading device, the automatic control part is connected by communication with the lead screw guide rails part and the load applying portion.
Description
Technical field
The present invention relates to a kind of lead screw guide rails reliability test bench based on electro-hydraulic loading, is primarily adapted for use in numerical control grinding
Bed grinding carriage feed system reliability field.
Background technique
Numerically control grinder is the machine-tool of equipment manufacture, development level and production capacity, directly reflects national work
The comprehensive strength of industry, plays a crucial role in the national economic development.The performance of grinding machine decides equipment manufacture
There is larger gaps for level, China's numerically control grinder and international advanced numerically control grinder, in terms of being mainly reflected in reliability, especially
It is that precision is kept and use reliability aspect, feed system are one of the critical systems for influencing numerically control grinder reliability.
Numerically control grinder is used widely in machining manufacturing industry, is driven using numerical control program control servo motor
Wheel grinding axis class, plane, curved surface etc..Numerically control grinder is usually last procedure of precision component processing, so numerical control grinding
The quality of bed performance and the height of reliability have important influence to the efficiency of precision and processing that part is processed.
Either axis class numerically control grinder or plane numerical controlled grinding machine and curved surface numerically control grinder include feed system, into
Main function to system is driven by servo motor by lead screw pair drive grinding carriage realization straight-line feed, so feeding
The height of system reliability will directly affect the machining accuracy of numerically control grinder.
In numerically control grinder operational process feed system that there are lead screw positioning accuracies is insufficient, lead screw pair moment of friction is insufficient,
The problems such as lead screw temperature rise is excessively high, workbench vibration is excessive, damage of components, once there are these problems, the part processed is very
It may be waste product, seriously affect production efficiency, result even in serious safety accident.
In order to improve the reliability of feed system, it usually needs the fault data for acquiring the system, further according to fault data
It is proposed the measure of improvement feed system reliability.Under routine work load, feed system failure is less, obtains reliability data
Period it is longer, therefore must just carry out reliability test to obtain more data.
Servo motor revolving speed difference in feed system, grinding force difference, centripetal force are different, so experimental rig must be able to
Enough simulate different operating conditions, the exposure running failure of numerically control grinder feed system, for assessment numerically control grinder feed system can
Data are provided by property.
Numerically control grinder is mainly no-load test to the test of feed system in design at present, and seldom carries out reliability and add
Test is carried, causes the reliability basic data of numerically control grinder feed system seldom, designer can not accurate evaluation numerically control grinder
The reliability level of feed system.
Summary of the invention
In order to overcome the drawbacks described above under the prior art, the purpose of the present invention is to provide one kind to be based on electro-hydraulic loading
Lead screw guide rails reliability test bench, solve the defect of experimental provision under the prior art by the design of reasonable structure, can
Real working condition in simulation grinding process carries out dynamic and static load and acquires related data to calculate, evaluate numerical control feeding grinder system
The reliability of system.
The technical scheme is that a kind of lead screw guide rails reliability test bench based on electro-hydraulic loading, including silk
Thick stick rail sections, load applying portion and automatic control part, the lead screw guide rails part includes upper and lower saddle and feed screw nut
Pair is equipped with mutually matched guide rail between the upper and lower saddle, and the upper saddle is equipped with simulation grinding wheel stressing device, described
Lower saddle is fixed on ground black iron by T-bolt, and the screw pair is made of the feed screw nut and lead screw being threadedly engaged,
The feed screw nut is connected by feed screw nut seat and the upper saddle, the lead screw by bearing support in the lower saddle,
One end of the lead screw connects servo motor by shaft coupling, and the servo motor and the lower saddle are connected；The load is applied
Adding part includes pedestal, electro-hydraulic servo loading device and direction adjustment organization, and the pedestal is connect with the Horizon ferropexy, institute
Pedestal is stated equipped with the direction adjustment organization, the upper surface of the direction adjustment organization is fixed with left and right branch by support plate
Frame is fixed with shaft between the left and right bracket, and the shaft is connected with the electro-hydraulic servo loading device；The automatic control
System part includes control cabinet and hydraulic power unit, the automatic control part and the lead screw guide rails part and the load applying unit
Divide and is connected by communication.
Preferably, it is provided with annular groove among the shaft, is offered on the slide plate of the electro-hydraulic servo loading device multiple
Corresponding through-hole, can be by adjusting position of the fixing bolt between the two in annular groove so as to adjust electro-hydraulic servo loading device
With the setting angle of shaft, to be adapted to different loading directions.
Preferably, the shaft is connected by expansion sleeve and screw and left and right bracket, and the both ends of the shaft are rotary table,
And it is machined with internal thread hole in shaft end, the outer wall of the expansion sleeve is equipped with axial groove, and the expansion sleeve inner ring connects shaft, outside
Circle contacts the inner hole of left and right bracket, by tighten with the bolt of shaft cooperation by expansion sleeve be pressed into shaft and left and right bracket it
Between, to make shaft and left and right bracket be connected by frictional force, it can arbitrarily adjust installation of the shaft relative to left and right bracket
Angle.
Preferably, the guide rail is the flat composite guideway of V-, and V-type rail oil storage performance gets well and play the guiding role, level gauge
Good manufacturability can play the role of support and keep machine tool accuracy, therefore the flat composite guideway of V- can be good at meeting because of grinding machine
Planker weight and movement velocity height, thus it requires the condition preferably lubricated, so that guide rail is more safe and reliable.
Preferably, the upper saddle is equipped with the counterweight for simulating inertia load, to replace motor, belt and main shaft etc.
The due weight of institute in grinding carriage actual processing process, counterbalance mass can be adjusted accordingly according to the difference of actual condition
It is whole.
Preferably, the simulation grinding wheel stressing device is connected by bolt and the upper saddle, the simulation grinding wheel stress
The stress side of device is disc, is set on the outer end face of disk there are four equally distributed force rod, the force rod
End face is spherical surface, and the spherical design of force rod, which makes simulation grinding wheel stressing device can satisfy multi-faceted, multi-angle stress, to be needed
It asks.
Preferably, the direction adjustment organization includes two pairs of orthogonal guide rail mechanisms of moving direction, the guide rail machine
The guide rail of structure is rectangular slide guide rail, and the guide rail mechanism is additionally provided with the screw pair for adjusting moving distance, the silk
One end of lead screw is equipped with manual adjustment knob in thick stick pair of nut, and electro-hydraulic servo loading device is arbitrarily moved in the horizontal plane
Locking when moving and being maintained at fixed position.
Preferably, the electro-hydraulic servo loading device includes hydraulic cylinder, upper end cover, No. 1 axis, linear bearing, pressure biography
Sensor and displacement sensor, the hydraulic cylinder are double-piston rod-type hydraulic cylinder, and two piston rods are respectively from the hydraulic cylinder
Both ends stretch out, the upper end cover has been bolted in the upper surface of the hydraulic cylinder, and the upper end cover passes through oscillating bearing
It is connected with hydraulic cylinder support frame, is fixed with No. 1 axis between the upper end cover and the upper surface of the hydraulic cylinder, described No. 1
The axis of axis is parallel with the axis of the upper piston rod of the hydraulic cylinder, and the institute that can be slided on No. 1 axis is set on No. 1 axis
State linear bearing, the end of one end of the linear bearing and the upper piston rod is connected, and the other end is connected with the displacement biography
Sensor, the end of the lower piston rod of the hydraulic cylinder are connected through a screw thread one end of the pull pressure sensor, the pressure
The other end of sensor connects load bar by elastic device, and partial dislocation can be absorbed in the elastic device, elastic device
Intrinsic frequency should be greater than twice of excited frequency or more, institute's displacement sensors and the pull pressure sensor and the control cabinet
It is connected by communication, the signal that institute's displacement sensors and the pull pressure sensor can will test passes to control cabinet, realizes double
Closed-loop control.
Preferably, the elastic device is by top connecting plate, lower section connecting plate, the identical sleeve of two structures and two rule
The identical bolt of lattice and nut composition, wherein top connecting plate is identical with lower section connecting board structure, the top connecting plate and
Lower section connecting plate is respectively a rectangular flat plate, and center position is provided with tapped through hole, and the two sides of tapped through hole respectively have one
Through-hole, the outer diameter of the identical sleeve of 2 structures are greater than the diameter of two side through hole on top connecting plate and lower section connecting plate, 2 rule
In the identical bolt insertion top connecting plate of lattice and the through-hole of lower section connecting plate two sides, the identical sleeve of 2 structures is sleeved on two
On bolt between a connecting plate, finally it is fixed and is linked together by the identical nut of 2 structures again.
Preferably, the hydraulic cylinder is equipped with electrohydraulic servo valve, and the electrohydraulic servo valve communicates phase with the hydraulic power unit
Even, the electrohydraulic servo valve receives flow and pressure that modulation can be accordingly exported after analog electrical signal, has that dynamic response is fast, control
The advantages that precision processed is high, long service life, fast, control precision that hydraulic power unit by electrohydraulic servo valve controls hydraulic cylinder reaction speed
Height, so that experimental data is more accurate reliable.
Preferably, the outer end face of the load bar is the spherical surface of indent, the load bar and the force rod sphere-contact,
Certifiable load bar in any direction, any angle load when power size and Orientation accuracy.
Preferably, the control cabinet includes upper industrial personal computer, the next programmable controller PLC and signal conversion module, institute
It states upper industrial personal computer and passes through signal amplifier and the signal conversion module and institute's displacement sensors, pull pressure sensor and electricity
Hydraulic servo is connected by communication, and the up direction of the bottom programmable controller PLC is connected with the upper industrial computer communication, institute
The down direction for stating the next programmable controller PLC is connected separately with servo-driver and solenoid directional control valve, the servo-drive
The output end of device and the power interface of servo motor and encoder interfaces connect, the solenoid directional control valve and the hydraulic power unit phase
Even.
Preferably, the control cabinet is equipped with display screen and station, can be with the operating mode of set device by station
And test parameters, and intuitively showed test result by display screen.
The invention has the benefit that
Compared with prior art, the lead screw guide rails reliability test bench of the present invention based on electro-hydraulic loading is adopted
Grinding machine grinding carriage is loaded with hydraulic-driven, i.e., simulate to transmission system the load of dynamic and static power load indirectly, from
And simulate the load that transmission system is born in practical grinding process, by install related sensor, measure guide rail normal pressure,
Tilting moment, by carrying out power load to guide rail, load is converted into the torque of lead screw.By to tested lead screw and guide rail simulation
The reliability test of real working condition exposes and excites its failure, provides basic data for the reliability growth and assessment of product；
Lead screw guide rails reliability test bench of the present invention based on electro-hydraulic loading can be realized to acting on mould
The dynamic and static simulation of torque and power on quasi- grinding wheel stressing device, and by setting counterweight with simulated machine, belt and main shaft etc.
The due weight of institute in grinding carriage actual processing process, the amplitude and loading frequency and torque size for simulating grinding force are in difference
Dynamic is adjustable under operating condition；
Lead screw guide rails reliability test bench of the present invention based on electro-hydraulic loading, load applying portion pass through
Direction adjustment organization and shaft make electro-hydraulic servo loading device realize 5DOF flexible modulation, enable load bar and force rod
It enough better contacts with, thus more enough sizes and Impact direction for preferably controlling added load；
Lead screw guide rails reliability test bench of the present invention based on electro-hydraulic loading, the installation of load applying portion
There are pull pressure sensor and displacement sensor, the size of the analog force of energy real-time detection load realizes real time monitoring and closed loop control
System and feedback；Torque sensor and speed probe are installed simultaneously, real time monitoring can also be realized to the torque loaded and closed
Ring control, makes loading device loading accuracy with higher；
Lead screw guide rails reliability test bench of the present invention based on electro-hydraulic loading, for the grinding wheel of different model
Frame lead screw guide rails feed system, the machine tool functional component and a small amount of installation transition piece for only needing to change different model can carry out reliably
Property load test, embodies the flexibility and versatility of this experimental bench.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is control principle block diagram of the invention；
Fig. 3 is the explosive view of load applying portion of the present invention.
Specific embodiment
Referring to Fig. 1-3, the invention discloses a kind of lead screw guide rails reliability test bench based on electro-hydraulic loading, including
Lead screw guide rails part, load applying portion and automatic control part.
The lead screw guide rails part includes upper and lower saddle and screw pair, is equipped with phase interworking between the upper and lower saddle
The guide rail of conjunction, in general, the guide rail is good for lubrication, steering capability, the flat composite guideway of V- with high accuracy.It is set on the upper saddle 6
There are counterweight 7 and simulation grinding wheel stressing device 8, the simulation grinding wheel stressing device for simulating inertia load to pass through bolt and institute
State saddle be connected, it is described simulation grinding wheel stressing device stress side be disc, set on the outer end face of disk there are four
Equally distributed force rod, the end face of the force rod are spherical surface.The lower saddle 22 is fixed on ground black iron 3 by T-bolt
On, the screw pair is made of the feed screw nut and lead screw being threadedly engaged, the feed screw nut by feed screw nut seat with
The upper saddle is connected, and by bearing support in the lower saddle, one end of the lead screw is connected the lead screw by shaft coupling 4
Servo motor 5, the servo motor and the lower saddle are connected.
The load applying portion includes pedestal 21, and the pedestal is opened there are four U-lag, with described by T-bolt
Black iron is fixedly connected, and the installation position of the pedestal can arbitrarily be arranged according to loading direction.The pedestal is adjusted equipped with direction
Mechanism, the direction adjustment organization include two pairs of orthogonal guide rail mechanisms of moving direction, and the guide rail of the guide rail mechanism is
Rectangular slide guide rail, the guide rail mechanism are additionally provided with the screw pair for adjusting moving distance, in the screw pair
One end of lead screw is equipped with manual adjustment knob, and electro-hydraulic servo loading device is allowed arbitrarily to move and be maintained in the horizontal plane
Locking when fixed position.The upper surface of the direction adjustment organization is fixed with left support 18 and right support by support plate 20
19, shaft 17 is fixed between the left and right bracket, the shaft is connected by expansion sleeve and screw and left and right bracket, described
The both ends of shaft are rotary table, and are machined with internal thread hole in shaft end, and the outer wall of the expansion sleeve is equipped with axial groove, the swelling
It covers inner ring and connects shaft, outer ring contacts the inner hole of left and right bracket, is turned expansion sleeve indentation with the bolt of shaft cooperation by tightening
Between axis and left and right bracket, to make shaft and left and right bracket be connected by frictional force, can arbitrarily adjust shaft relative to
The setting angle of left and right bracket.The shaft is also connected with electro-hydraulic servo loading device, is provided with annular groove among the shaft,
Multiple corresponding through-holes are offered on the slide plate 16 of the electro-hydraulic servo loading device, it can be by adjusting fixing bolt between the two
Position in annular groove so as to adjust electro-hydraulic servo loading device and shaft setting angle, to be adapted to different load sides
To.The electro-hydraulic servo loading device includes hydraulic cylinder 13, the hydraulic cylinder be double-piston rod-type hydraulic cylinder and be equipped with
The electrohydraulic servo valve 12 that hydraulic power unit is connected by communication, two piston rods are stretched out from the both ends of the hydraulic cylinder respectively, described hydraulic
Upper end cover has been bolted in the upper surface of cylinder, and the upper end cover is connected by oscillating bearing 14 with hydraulic cylinder support frame 15,
Be fixed with No. 1 axis between the upper end cover and the upper surface of the hydraulic cylinder, the axis of No. 1 axis and the hydraulic cylinder it is upper
The axis of piston rod is parallel, is set with the linear bearing that can be slided on No. 1 axis on No. 1 axis, and the one of the linear bearing
End and the end of the upper piston rod are connected, and the other end is connected with displacement sensor, the end of the lower piston rod of the hydraulic cylinder
It is connected through a screw thread one end of pull pressure sensor 11, the other end of the pull pressure sensor is added by the connection of elastic device 10
Bar 9 is carried, the outer end face of the load bar is the spherical surface of indent, the load bar and the force rod sphere-contact.The elasticity
Device is made of top connecting plate, lower section connecting plate, the identical sleeve of two structures and the identical bolt of two specifications and nut,
Wherein top connecting plate is identical as lower section connecting board structure, and the top connecting plate and lower section connecting plate are respectively that a rectangle is flat
Plate, center position are provided with tapped through hole, and respectively there are a through-hole in the two sides of tapped through hole, the identical sleeve of 2 structures
Outer diameter is greater than the diameter of two side through hole on top connecting plate and lower section connecting plate, the identical bolt insertion top connection of 2 specifications
In plate and the through-hole of lower section connecting plate two sides, the identical sleeve of 2 structures is sleeved on the bolt between two connecting plates, finally
It is fixed and is linked together by the identical nut of 2 structures again.
The automatic control part includes control cabinet 2 and hydraulic power unit 1, and the control cabinet includes upper industrial personal computer, bottom
Programmable controller PLC and signal conversion module, the signal conversion module include D/A card and A/D card, the upper industrial personal computer
It is communicated by signal amplifier and the signal conversion module and institute's displacement sensors, pull pressure sensor and electrohydraulic servo valve
It is connected, the up direction of the bottom programmable controller PLC is connected with the upper industrial computer communication, described the next programmable
The down direction of controller PLC is connected separately with servo-driver and solenoid directional control valve, the output end of the servo-driver with
The power interface of servo motor is connected with encoder interfaces, and the solenoid directional control valve is connected with the hydraulic power unit, the control
Cabinet is additionally provided with display screen and station, can be with the operating mode and test parameters of set device by station, and passes through display
Screen intuitively shows test result.
Program chart referring to fig. 2, when carrying out reliability test to tested lead screw guide rails, first according to dynamic and static cutting
The size of power and direction adjust position and the angle of electro-hydraulic servo loading device, the axis of load bar are enable to be registered to mould
On the spherical surface of quasi- grinding wheel stressing device, certain parameter is then selected in the VB control interface of control cabinet, keeps upper industrial personal computer logical
It crosses the port RS-232C to be communicated with programmable controller PLC, programmable controller PLC passes through servo driver drives servo
Motor, while signal is obtained by torque sensor and speed probe, and signal is passed back by signal amplifier and A/D card
To upper industrial personal computer, closed-loop control is realized.The true grinding machining working condition simulated as needed simultaneously is added by station setting
Carry power, vibration frequency, Loaded contact analysis, load time, the load parameters such as torque and revolving speed, after on-test, PLC control
Servo motor make saddle sky into and work receive load feedback signal into, upper industrial personal computer after controlled by electrohydraulic servo valve it is hydraulic
Cylinder is added to load in lead screw guide rails indirectly simulation grinding wheel stressing device load, meanwhile, displacement associated with hydraulic cylinder passes
The signal that sensor and pull pressure sensor will test is returned to upper industrial personal computer by signal amplifier and A/D card, realizes double
Closed-loop control.After loading procedure, the piston rod that electrohydraulic servo valve controls hydraulic cylinder is retracted, and upper industrial personal computer continues control and watches
The movement of motor driven lead screw guide rails is taken, it is entire to test process circulation in an orderly manner under the automatic control and detection of upper industrial personal computer
Constantly carry out.
Implementation described in the invention patent is for the ease of the those skilled in the art it will be appreciated that and using this hair
Bright, the present invention is a kind of embodiment of optimization, or perhaps a kind of preferably specific technical solution, it is only applicable to one
Determine the different model in range, various sizes of grinding carriage lead screw guide rails carry out reliability test, the different model except range,
The reliability test of various sizes of lead screw guide rails, basic technical solution is constant, but the specifications and models of its components used will
It changes correspondingly, such as pull pressure sensor, lead screw bearing and other standard components.Therefore the invention patent is not limited to implement this one kind
The description of more specific technical solution.If relevant technical staff is in the case where adhering to the invention patent basic technical scheme
It makes the equivalent structure variation for needing not move through creative work or various modifications is all within the scope of the present invention.
Claims (10)
1. a kind of lead screw guide rails reliability test bench based on electro-hydraulic loading, it is characterised in that including lead screw guide rails part,
Load applying portion and automatically control part, the lead screw guide rails part includes upper and lower saddle and screw pair, it is described it is upper,
Mutually matched guide rail is equipped between lower saddle, the upper saddle is equipped with simulation grinding wheel stressing device, and the lower saddle passes through T
Type bolt is fixed on ground black iron, and the screw pair is made of the feed screw nut and lead screw being threadedly engaged, the lead screw spiral shell
Mother is connected by feed screw nut seat and the upper saddle, the lead screw by bearing support in the lower saddle, the lead screw
One end connects servo motor by shaft coupling, and the servo motor and the lower saddle are connected；The load applying portion includes
Pedestal, electro-hydraulic servo loading device and direction adjustment organization, the pedestal are opened there are four U-lag, with described by T-bolt
Black iron is fixedly connected, and the pedestal is equipped with the direction adjustment organization, and the upper surface of the direction adjustment organization passes through support
Plate is fixed with left and right bracket, and shaft is fixed between the left and right bracket, and the shaft is connected with the electro-hydraulic loading
Device makes electro-hydraulic servo loading device realize that 5DOF flexible modulation, the shaft pass through by direction adjustment organization and shaft
Expansion sleeve and screw and left and right bracket are connected, and the both ends of the shaft are rotary table, and are machined with internal thread hole in shaft end, described
The outer wall of expansion sleeve is equipped with axial groove, and the expansion sleeve inner ring connects shaft, and outer ring contacts the inner hole of left and right bracket, passes through
It tightens and expansion sleeve is pressed between shaft and left and right bracket with the bolt of shaft cooperation, the electro-hydraulic servo loading device includes
Hydraulic cylinder, upper end cover, No. 1 axis, linear bearing, pull pressure sensor and displacement sensor, the hydraulic cylinder are double piston-rod
Formula hydraulic cylinder, two piston rods are stretched out from the both ends of the hydraulic cylinder respectively, and the upper surface of the hydraulic cylinder is connected by bolt
It is connected to the upper end cover, the upper end cover is connected by oscillating bearing with hydraulic cylinder support frame, the upper end cover and described hydraulic
No. 1 axis is fixed between the upper surface of cylinder, the axis of the upper piston rod of the axis and hydraulic cylinder of No. 1 axis is flat
Row, is set with the linear bearing that can be slided on No. 1 axis on No. 1 axis, one end of the linear bearing and it is described on
The end of piston rod is connected, and the other end is connected with institute's displacement sensors, and the end of the lower piston rod of the hydraulic cylinder passes through spiral shell
Line connects one end of the pull pressure sensor, and the other end of the pull pressure sensor connects load bar by elastic device,
The elastic device absorbs partial dislocation, and the intrinsic frequency of the elastic device is greater than twice or more of excited frequency, it is described from
Dynamic control section includes control cabinet and hydraulic power unit, and the automatic control part is applied with the lead screw guide rails part and the load
Part is added to be connected by communication.
2. the lead screw guide rails reliability test bench based on electro-hydraulic loading as described in claim 1, it is characterised in that described
Guide rail is the flat composite guideway of V-.
3. the lead screw guide rails reliability test bench based on electro-hydraulic loading as claimed in claim 2, it is characterised in that described
Upper saddle is equipped with the counterweight for simulating inertia load.
4. the lead screw guide rails reliability test bench based on electro-hydraulic loading as claimed in claim 3, it is characterised in that described
It simulates grinding wheel stressing device to be connected by bolt and the upper saddle, the stress side of the simulation grinding wheel stressing device is disk
Shape is set on the outer end face of disk there are four equally distributed force rod, and the end face of the force rod is spherical surface.
5. the lead screw guide rails reliability test bench based on electro-hydraulic loading as claimed in claim 4, it is characterised in that described
Direction adjustment organization includes two pairs of orthogonal guide rail mechanisms of moving direction, and the guide rail of the guide rail mechanism is led for rectangular slide
Rail, the guide rail mechanism are additionally provided with the screw pair for adjusting moving distance, one end of lead screw in the screw pair
Equipped with manual adjustment knob.
6. the lead screw guide rails reliability test bench based on electro-hydraulic loading as claimed in claim 5, it is characterised in that described
Displacement sensor and the pull pressure sensor are connected by communication with the control cabinet.
7. the lead screw guide rails reliability test bench based on electro-hydraulic loading as claimed in claim 6, it is characterised in that described
Hydraulic cylinder is equipped with electrohydraulic servo valve, and the electrohydraulic servo valve is connected by communication with the hydraulic power unit.
8. the lead screw guide rails reliability test bench based on electro-hydraulic loading as claimed in claim 7, it is characterised in that described
The outer end face of load bar is the spherical surface of indent, the load bar and the force rod sphere-contact.
9. the lead screw guide rails reliability test bench based on electro-hydraulic loading as claimed in claim 8, it is characterised in that described
Control cabinet includes that upper industrial personal computer, the next programmable controller PLC and signal conversion module, the upper industrial personal computer pass through signal
Amplifier and the signal conversion module are connected by communication with institute displacement sensors, pull pressure sensor and electrohydraulic servo valve, institute
The up direction for stating the next programmable controller PLC is connected with the upper industrial computer communication, the bottom programmable controller
The down direction of PLC is connected separately with servo-driver and solenoid directional control valve, output end and the servo electricity of the servo-driver
The power interface of machine is connected with encoder interfaces, and the solenoid directional control valve is connected with the hydraulic power unit.
10. the lead screw guide rails reliability test bench based on electro-hydraulic loading as claimed in claim 9, it is characterised in that described
Control cabinet is equipped with display screen and station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380856.5A CN106017959B (en) | 2016-06-01 | 2016-06-01 | Lead screw guide rails reliability test bench based on electro-hydraulic loading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380856.5A CN106017959B (en) | 2016-06-01 | 2016-06-01 | Lead screw guide rails reliability test bench based on electro-hydraulic loading |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106017959A CN106017959A (en) | 2016-10-12 |
| CN106017959B true CN106017959B (en) | 2019-05-10 |
Family
ID=57093234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610380856.5A Active CN106017959B (en) | 2016-06-01 | 2016-06-01 | Lead screw guide rails reliability test bench based on electro-hydraulic loading |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106017959B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338969B (en) * | 2016-10-21 | 2018-09-14 | 吉林大学 | Electro-hydraulic servo feed system reliability test and test method |
| CN108398282B (en) * | 2018-05-31 | 2020-08-18 | 吉林大学 | Servo swing feeding system reliability test device and test method |
| CN108880140B (en) * | 2018-08-15 | 2024-02-06 | 湘潭顺程科技有限公司 | Assembling machine for motor stator and rotor |
| CN109187243A (en) * | 2018-10-30 | 2019-01-11 | 万向钱潮股份有限公司 | A kind of fatigue test guiding device |
| CN110307976B (en) * | 2019-08-07 | 2021-05-11 | 烟台中宇航空液压有限公司 | Reliability test device for electro-hydraulic servo feeding system |
| CN111157386B (en) * | 2020-01-17 | 2021-06-25 | 东华大学 | Variable-load contact lubrication abrasion integrated testing machine |
| CN112857852B (en) * | 2021-02-09 | 2022-05-06 | 吉林大学 | Reliability test bed and test method based on mixed loading numerical control machine tool feeding system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201788095U (en) * | 2010-09-21 | 2011-04-06 | 吉林大学 | Numerical control turret head reliability test system having electro-hydraulic servo loading device |
| CN102507182A (en) * | 2011-10-21 | 2012-06-20 | 西南交通大学 | Reconfigurable lead screw pair and guide rail pair accelerated life electro-hydraulic servo test bench |
| CN102944419A (en) * | 2012-11-18 | 2013-02-27 | 吉林大学 | Ball screw pair reliability test stand provided with electro-hydraulic servo loading devices |
| CN104807660A (en) * | 2015-04-19 | 2015-07-29 | 北京工业大学 | Reliability test device for CNC (Computer Numerical Control) grinding machine |
| CN206020024U (en) * | 2016-06-01 | 2017-03-15 | 北京第二机床厂有限公司 | Lead screw guide rails reliability test bench based on electro-hydraulic loading |
-
2016
- 2016-06-01 CN CN201610380856.5A patent/CN106017959B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201788095U (en) * | 2010-09-21 | 2011-04-06 | 吉林大学 | Numerical control turret head reliability test system having electro-hydraulic servo loading device |
| CN102507182A (en) * | 2011-10-21 | 2012-06-20 | 西南交通大学 | Reconfigurable lead screw pair and guide rail pair accelerated life electro-hydraulic servo test bench |
| CN102944419A (en) * | 2012-11-18 | 2013-02-27 | 吉林大学 | Ball screw pair reliability test stand provided with electro-hydraulic servo loading devices |
| CN104807660A (en) * | 2015-04-19 | 2015-07-29 | 北京工业大学 | Reliability test device for CNC (Computer Numerical Control) grinding machine |
| CN206020024U (en) * | 2016-06-01 | 2017-03-15 | 北京第二机床厂有限公司 | Lead screw guide rails reliability test bench based on electro-hydraulic loading |
Non-Patent Citations (1)
| Title |
|---|
| 基于CMAC和PID的丝杠导轨疲劳加载系统智能控制研究;高育帼 等;《机械设计与制造》;20130331(第3期);第152-154页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106017959A (en) | 2016-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106017959B (en) | Lead screw guide rails reliability test bench based on electro-hydraulic loading | |
| CN102853978B (en) | Testing device and method for three-dimensional static stiffness loading of machine tool | |
| CN104266837B (en) | Ball screw performance testing testbed based on motor servo loading | |
| CN106525412B (en) | A kind of rotary table component comprehensive performance detection platform and detection method | |
| CN103308338B (en) | Machine tool loading device and machine tool loading test method based on three-freedom-degree parallel mechanism | |
| CN102944419B (en) | There is the ball screw assembly, reliability test bench of electro-hydraulic servo loading device | |
| CN102866030B (en) | Five-axis linkage loading test device and loading test method for machine tool | |
| CN206020024U (en) | Lead screw guide rails reliability test bench based on electro-hydraulic loading | |
| CN101414185B (en) | Device and method for testing accurate servo linear drive system performance | |
| CN104731088B (en) | A method of test ball screw assembly, control method performance | |
| CN107830998B (en) | Heavy type numerical control metal-planing machine mobile work platform reliability test | |
| CN202916090U (en) | Ballscrew pair reliability test bed having electro-hydraulic servo loading devices | |
| CN106092563A (en) | Plane two degrees of freedom high frequency charger and test platform for ball screw assembly, | |
| CN102928220A (en) | Experimental device for comprehensively testing dynamic characteristics of linear feeding system | |
| CN206132031U (en) | Orthoscopic piston detecting system | |
| CN105547685B (en) | High-speed electric main shaft loads and tool changing experimental rig | |
| CN104198204A (en) | Straight feed unit comprehensive performance degradation testbed capable of simulating actual working conditions | |
| CN104677633A (en) | Reliability test platform for radial hydrostatic bearing | |
| CN106289768A (en) | Leading screw, guide rail application system simulated condition laboratory table | |
| CN107271182B (en) | Loading experiment device for simulating cutting force and action position of cutter | |
| CN109489964A (en) | Based on to the electro spindle reliability test bench automatic centring device for dragging load | |
| CN204439357U (en) | Radial hydrodynamic journal liquid polymers reliability test bench | |
| CN207992806U (en) | NC rotary table reliability test bench with simulation actual condition load | |
| CN213022299U (en) | Ball screw pair accelerated degradation test platform | |
| CN104535355A (en) | Heavy numerical control plano-boring and milling machine workbench feeding system reliability test bed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |