CN107806989A - Heavy CNC vertical turning machine workbench and its feed mechanism reliability test system - Google Patents
Heavy CNC vertical turning machine workbench and its feed mechanism reliability test system Download PDFInfo
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- CN107806989A CN107806989A CN201711028021.4A CN201711028021A CN107806989A CN 107806989 A CN107806989 A CN 107806989A CN 201711028021 A CN201711028021 A CN 201711028021A CN 107806989 A CN107806989 A CN 107806989A
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Abstract
The present invention relates to a kind of heavy CNC vertical turning machine workbench and its feed mechanism reliability test system；Overcome the problem of current reliability test can not carry out reliability test to heavy CNC vertical turning machine workbench and its feed mechanism.The pilot system includes balancing weight inertia and loads and load servicing unit part, radial loaded part, axially loaded part, moment of torsion loading section and automatically control part；Radial loaded part includes four sets of radial direction piezoelectric ceramics loading devices being uniformly distributed in around workbench；Axially loaded part includes axial piezoelectric ceramics actuator, axial push-pull force snesor and axial push-pull force snesor；Moment of torsion loading section includes hydraulic pump, torque sensor, hydraulic efficiency servo-valve and photoelectric sensor；Automatically controlling part includes radial direction controller, axial controller, torque controller and working table movement controller.
Description
Technical field
The invention belongs to heavy cutting process equipment reliability test technical field, more particularly to one kind can simulate inertia
The heavy CNC vertical turning machine workbench and its feed mechanism reliability test system of load, dynamic and static cutting load.
Background technology
Heavy CNC vertical turning machine is mainly used in the processing of large-scale, super-huge part, is defence and military, wind-power electricity generation, core
The indispensable machining device of the industries such as electricity, communications and transportation, metallurgy, engineering machinery.Heavy CNC vertical turning machine has certainly
The features such as weight is larger, workpiece weight is big, inertia is big so that its faults frequent, its integrity problem is serious, has become lathe life
Produce enterprise and user's focus of attention.Due to the factor such as heavy machine tool yardstick is huge, whole aircraft reliability experiment is carried out relatively
Difficulty, therefore the reliability test system of heavy CNC vertical turning machine key feature is researched and developed, pass through reliability test
Leak cruelly, find out the factor for influenceing heavy CNC vertical turning machine reliability, and then take the measure for improving its reliability level, this tool
There is very important practical significance.
China NC Machine reliability level has certain gap compared with same kind of products at abroad, and heavy CNC vertical turning machine is ground
Study carefully that work starting is more late, therefore also the key feature progress reliability examination to heavy CNC vertical turning machine domestic at present
Research is tested, current only testing stand also simply by dry run or carries out user's field reliability test progress, specifically for
The reliability test country of heavy CNC vertical turning machine key feature almost blank.The present invention is stood according to heavy type numerical control
The actual use operating mode of formula Lathe bench and its feed mechanism, it is proposed that there is one kind simulation actual cut load and inertia to carry
The heavy CNC vertical turning machine workbench of lotus and its reliability test system of feed mechanism.
The content of the invention
The technical problems to be solved by the invention be overcome current reliability test can not be to heavy digital control vertical
Lathe bench and its feed mechanism simulate the reliability test problem of actual condition loading, provide one kind and use piezoelectricity
Ceramic actuator, hydraulic pump, balancing weight simulate the heavy CNC vertical turning machine of actual dynamic and static cutting load and inertial load
Workbench and its feed mechanism reliability test system.
In order to solve the above technical problems, the present invention adopts the following technical scheme that realization, it is described with reference to the drawings as follows：
Heavy CNC vertical turning machine workbench and its feed mechanism reliability test system include balancing weight inertia and load and load
Servicing unit part, radial loaded part, axially loaded part, moment of torsion loading section and automatically control part；
The radial loaded part is made up of the identical radial direction piezoelectric ceramics loading device 13 of four nested structures, four noose
The identical radial direction piezoelectric ceramics loading device 13 of structure is distributed on around loading workbench 11；
The radial direction piezoelectric ceramics loading device 13 includes radial loaded platform 26, radial direction Universal caster 27, radial direction pressure sensing
Device 28, coupling bar 29, radial direction piezoelectric ceramics actuator 30, radial tightening nut 31, radial direction locking nut 32, the and of radial direction screw mandrel 33
Radial displacement transducer 34；The radial direction Universal caster 27, radial direction pull pressure sensor 28, coupling bar 29, radial direction piezoelectric ceramics
Actuator 30, radial direction screw mandrel 33 are screwed connection successively；The radial direction screw mandrel 33 passes through the right wall plate of radial loaded platform 26
Through hole；The radial tightening nut 31 is arranged on radial direction screw mandrel 33, and the left side of the right wall plate positioned at radial loaded platform 26,
The radial direction locking nut 32 is arranged on radial direction screw mandrel 33, and the right side of the right wall plate positioned at radial loaded platform 26；It is described
The shell of radial displacement transducer 34 is fixed on the upper surface of the bottom plate of radial loaded platform 26, the axis of the interior axle of radial displacement transducer 34
With the diameter parallel of radial direction piezoelectric ceramics actuator 30, the interior axle of radial displacement transducer 34 is stretched out from left end, and radial displacement passes
The interior axle left end of sensor 34 is fixed on coupling bar 29；
The axially loaded part includes axial piezoelectric ceramics loading device 6；
The axial piezoelectric ceramics loading device 6 include axially loaded 37, axial Universal caster 41, shaft position sensor
45th, axial push-pull force snesor 40, axial piezoelectric ceramics actuator 35, axial pretightening nut 36, axial lock nut 38 and axle
To screw mandrel 39；The axial Universal caster 41, axial push-pull force snesor 40, axial piezoelectric ceramics actuator 35, axial screw mandrel
39 are screwed connection successively；The axial pretightening nut 36 is arranged on axial screw mandrel 39, and positioned at axially loaded 37
By-level plate it is following, the axial lock nut 38 is arranged on axial screw mandrel 39, and positioned at axially loaded 37
By-level plate top；The shell of the shaft position sensor 45 is arranged on axially loaded 37, and axial displacement passes
The interior shaft end of sensor 45 is coupled with the lower end of axial piezoelectric ceramics actuator 35 by plate；
The moment of torsion loading section includes 19, No. 1 clamping screws 20 of coupling spindle, torque sensor 42, support plate 43 and hydraulic pump
21；Described hydraulic pump 21 is fixed on the lower surface of ram 9 by No. 1 clamping screw 20；The hydraulic pump 21 passes through No. 1 shaft coupling
The output axis connection of device 46 and torque sensor 42；The input shaft of the torque sensor 42 is by No. 2 shaft couplings 47 with coupling
Axle 19 connects；The coupling spindle 19 is connected by flat key with simulating the endoporus of workbench 18；The torque sensor 42 is fixed on
On support plate 43；The support plate 43 is fixed on ram 9；
The balancing weight inertia loading servicing unit part includes balancing weight 12 and loading servicing unit；
The balancing weight 12 is fixed on simulation workbench 18；The loading servicing unit includes loading workbench 11, simulation
Workbench 18, ring-shaped guide rail pair 22；The simulation workbench 18 is fixed on workbench 2, the guide rail of the ring-shaped guide rail pair 22
Simulation workbench 18 is fixed on, the sliding block of the ring-shaped guide rail pair 22 is fixed on the lower surface of loading workbench 11；The simulation
The axis collinear of the axis of workbench 18, the axis and workbench 2 for loading workbench 11.
The control section includes radial direction controller, axial controller, torque controller and working table movement controller etc.；
The radial direction controller is connected by RS232C ports with industrial computer；The axial controller passes through RS232C ports and industrial computer
Connection；The torque controller is connected by RS232C ports with industrial computer；The working table movement controller passes through RS232C
Port is connected with industrial computer.
There is rectangle raised among the lower surface of balancing weight 12, have rectangular recess among upper surface, opened among groove
There is the through hole perpendicular to upper surface, for one or more balancing weights to be fixed on simulation workbench 18 through bolt.
The simulation workbench 18 be disk part by performing, and centre is provided with through hole, and keyway is offered in through hole, by flat key and
Coupling spindle 19 couples, and the upper surface outer ring of simulation workbench 18 is designed with T-slot for installing balancing weight 12, in T-slot
Heart line is provided with for installing the annular guide rail of guideway 22 through the axle center of simulation workbench 18, the upper surface of simulation workbench 18
Annulus neck, the screwed hole of the guide rail for stationary annular guideway 22 is evenly equipped with annulus neck；
The loading workbench 11 is ring-shape accessory, loads and offers one in the axial direction on the external cylindrical surface of workbench 11
U-shaped groove, for inserting the end of gag lever post 23, prevent loading workbench 11 from rotating, can only be along the axle of loading workbench 11
Move in line direction.
The loading servicing unit also includes 16, No. 3 clamping screws 14 of firm banking and limiter 23；
The firm banking 16 is welded to form by sleeve and bottom plate, and sleeve bottom at bottom plate connecting with being welded with reinforcement, bottom plate
Four through holes are provided with, for firm banking 16 to be fixed on ground black iron 17, the sleeve upper end of firm banking 16 through bolt
A through hole is provided with radial directions to be used to fix limiter 23 through No. 3 clamping screws 14；
Described limiter 23 is the L-type structure part being welded by vertical axes, pane and horizon bar, and the left end of horizon bar is inserted
Enter to load in the U-type groove on the external cylindrical surface of workbench 11, prevent loading workbench 11 from rotating；The limiter 23 it is vertical
The through hole vertical with vertical axes axis is evenly arranged with axle axis direction；
The moment of torsion loading section also includes hydraulic efficiency servo-valve 10, photoelectric sensor 44；
The hydraulic efficiency servo-valve 10 is arranged on the side of cylinder block of hydraulic pump 21 by bolt；
Through hole has been taken at the bottom of the photoelectric sensor 44, for through being bolted on the left of the vertical panel of support plate 43
On face, photoelectric sensor 44 is located between the output shaft and support plate of torque sensor 42, the torque sensor 44
The reflecting piece of light for reflecting photoelectric sensor 44 is installed on output shaft.
The axially loaded part includes 4, two completely identical in structure 1 line slideway 1, linear slider 3,2, screw
Number hydraulic cylinder 7, gantry 8 and ram 9；
The line slideway 1 is bolted on ground black iron 17, and described linear slider 3 is arranged on line slideway 1；Institute
State and coupled between gantry 8 and linear slider 3 by No. 2 screws 4；Described two completely identical in structure No. 1 hydraulic cylinder 7 bases lead to
Cross the crossbeam lower surface for being bolted to gantry 8, the piston rod end of described two completely identical in structure No. 1 hydraulic cylinders 7 with
The upper surface of ram 9 is screwed connection, the piston rod diameter parallel of described two completely identical in structure No. 1 hydraulic cylinders 7, and
Perpendicular to the upper surface of loading workbench 11.
The radial direction piezoelectric ceramics loading device 13 also includes the clamping screw 15 of expansion link 25,2 of firm banking 24,1；
No. 1 expansion link 25 is welded by top plate and two completely identical in structure small axles, two completely identical in structure small axles
It is welded on the center line of top plate lower surface, top plate is provided with four screwed holes, for 26, No. 1 expansion link 25 of fixed radial loading bench
Two small axles be uniformly provided with through hole vertically；
The loading firm banking 24 is formed by bottom plate and two completely identical in structure sleeve welds, at sleeve and bottom plate connecting
Four reinforcements are welded with, the sleeve upper end of loading firm banking 24 is provided with a through hole；Fixed with bolt also cross loading
The through hole of the through hole of the sleeve upper end of base 24 and two small axles of No. 1 expansion link 25 and fixation, the loading firm banking 24
Bottom plate is provided with four through holes, for loading firm banking 24 to be fixed on ground black iron 17 through bolt.
Compared with prior art the beneficial effects of the invention are as follows：
1. heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system using hydraulic pump,
Piezoelectric ceramics actuator and balancing weight loading section heavy CNC vertical turning machine workbench and its feed mechanism are carried out simulation it is dynamic,
The loading of static cutting force, tested heavy CNC vertical turning machine workbench and its feed mechanism are carried out simulating real working condition
Reliability test, and real-time failure data acquisition is carried out, it is reliability assessment, Reliability modeling and the reliability prediction in later stage
Practical basic data is provided, substantially reduces data acquisition time.
2. moment of torsion of the present invention loading be realized by hydraulic pump, torque sensor, photoelectric sensor it is dynamic,
The simulation loading of static cutting force.And size, frequency and the test period of loading moment of torsion can be adjusted according to actual condition,
Test parameters can be stored simultaneously, so as to follow-up inquiry and analysis.
3. axially and radially cutting force of the present invention is passed by piezoelectric ceramics actuator and pull pressure sensor, displacement
Sensor forms closed-loop control to realize the simulation loading of dynamic and static cutting force, and can be cut according to actual condition to adjust loading
The size, frequency and test period of power are cut, while test parameters can be stored, so as to follow-up inquiry and analysis.
4. axially and radially cutting force of the present invention is overcome using liquid by piezoelectric ceramics actuator loading method
The shortcomings that when cylinder pressure loads：I.e. due to machinery inertial, hydraulic cylinder can not be used to carry out high frequency loading to loading object.
5. the reliability test system of heavy CNC vertical turning machine workbench of the present invention and its feed mechanism adapts to
Scope is wider.Only need to be by different heavy CNC vertical turning machine works due to devising corresponding height adjustment mechanism, during experiment
Make platform and its feed mechanism be arranged on can on ground black iron it is carried out the detection of reliability load test and performance parameter with
Monitoring, embody the flexibility and versatility of this pilot system.
6. in heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system from
Dynamic control section is mainly monitored in real time by pull pressure sensor, displacement transducer to the cutting force of simulation, realizes monitoring in real time
With closed-loop control and feedback, to improve the precision of simulation cutting power, while the dynamic cutting force parameter of loading is included upper
On the man machine operation interface of industrial computer.
Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings：
Fig. 1 is the axle survey throwing of heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
Shadow figure；
Fig. 2 is auxiliary to be loaded in heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
Help the simulation workbench axonometric projection graph of device part；
Fig. 3 is balancing weight in heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
Axonometric projection graph；
Fig. 4 is auxiliary to be loaded in heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
Help the axonometric projection graph of device part and moment of torsion loading section；
Fig. 5 is the loading in heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
The axonometric projection graph of the limiter of servicing unit part；
Fig. 6 is the radial direction in heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
The axonometric projection graph of piezoelectric ceramics loading device；
Fig. 7 is the axial direction in heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
The axonometric projection graph of piezoelectric ceramics loading device；
Fig. 8 is automatic in heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
Control principle block diagram.
In figure：1. line slideway, 2. workbench, 3. linear sliders, No. 4.2 screws, 5. chuck jaws, 6. axial piezoelectric ceramics
Loading device, No. 7.1 hydraulic cylinders, 8. gantry, 9. rams, 10. hydraulic efficiency servo-valves, 11. loading workbench, 12. balancing weights, 13.
Radial direction piezoelectric ceramics loading device, 14. No. 3 clamping screws, 15. No. 2 clamping screws, 16. firm bankings, 17. ground black irons,
18. workbench is simulated, 19. coupling spindles, No. 20.1 clamping screws, 21. hydraulic pumps, 22. ring-shaped guide rail pairs, 23. limiters, 24.
Loading firm banking, No. 25.1 expansion links, 26. radial loaded platforms, 27. radial direction Universal casters, 28. radial direction pull pressure sensor,
29. coupling bar, 30. radial direction piezoelectric ceramics actuators, 31. radial tightening nuts, 32. radial direction locking nuts, 33. radial direction screw mandrels,
34. radial displacement transducer, 35. axial piezoelectric ceramics actuators, 36. axial pretightening nuts, 37. axially loaded, 38. axially
Locking nut, 39. axial screw mandrels, 40. axial push-pull force snesors, 41. axial Universal casters, 42. torque sensors, 43.
Board, 44. photoelectric sensors, 45. shaft position sensors, No. 46.1 shaft couplings, No. 47.2 shaft couplings.
Embodiment
The present invention is explained in detail below in conjunction with the accompanying drawings：
It will be appreciated that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, all other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, belongs to the scope of protection of the invention：
Refering to Fig. 1, a kind of heavy CNC vertical turning machine workbench and its feed mechanism reliability test system, including balancing weight are used to
Property loading and loading servicing unit part, radial loaded part, axially loaded part, moment of torsion loading section and automatically control portion
Point.
First, the loading of balancing weight inertia and loading servicing unit part
Refering to Fig. 1, Fig. 2, Fig. 3, the balancing weight inertia loading servicing unit part includes balancing weight 12 and loading servicing unit.
Refering to Fig. 1, Fig. 3, there is rectangle raised among the lower surface of balancing weight 12, have rectangle recessed among upper surface
Groove, the through hole perpendicular to upper surface is provided among groove.During installation, the lower surface projection of balancing weight 12 is stuck in simulation workbench
In 18 T-slot, balancing weight 12 is fixed on simulation workbench 18 with the through hole of bolt through balancing weight 12.When the zero of simulation
Part quality is larger to be placed on one of balancing weight on another balancing weight, it is necessary to during multiple balancing weights 12, and causes top
Balancing weight lower surface rectangle it is raised coordinate with the groove of the upper surface of following balancing weight, blending bolt passes through multiple counterweights
The through hole of block, multiple balancing weights 12 are fixed on together on simulation workbench 18.
Refering to Fig. 1, Fig. 2, Fig. 4, Fig. 5, the loading servicing unit part includes loading workbench 11, simulation workbench
18th, ring-shaped guide rail pair 22, chuck jaw 5,16, No. 3 clamping screws 14 of firm banking and limiter 23；
Refering to Fig. 2, Fig. 4, the simulation workbench 18 is disk part by performing, and centre is provided with through hole, and keyway is offered in through hole, leads to
Cross flat key with coupling spindle 19 to couple, the upper surface outer ring of simulation workbench 18 offers T-slot, for installing balancing weight 12.Institute
The center line for stating the T-slot of simulation workbench 18 passes through the axle center of simulation workbench 18.The upper surface of the simulation workbench 18
The annulus neck of the guide rail for installing annular guideway 22 is provided with, six screwed holes are evenly equipped with annulus neck, are used for
The guide rail of stationary annular guideway 22.The axis of rotation of the stationary annular guideway 22 is total to simulating the axis of workbench 18
Line；The lower surface of the simulation workbench 18 couples with the upper surface of workbench 2.During installation, ensure simulation workbench 18
Axis and workbench 2 axis collinear.
Refering to Fig. 1, the simulation workbench 18 is fixed on workbench 2 by six completely identical in structure chuck jaws 5；
The workbench 2 is bolted on ground black iron 17；
Refering to Fig. 1, Fig. 4, the loading workbench 11 be ring-shape accessory, the sliding block of the ring-shaped guide rail pair 22 by bolt and
The lower surface of loading workbench 11 is fixedly connected, during installation so that the axis of rotation of ring-shaped guide rail pair 22 and loading workbench 11
Rotation conllinear；A U-shaped groove is offered in the axial direction on the external cylindrical surface of the loading workbench 11, for inserting
Enter the end of gag lever post 23, prevent loading workbench 11 from rotating, can only be moved along the axis direction of loading workbench 11.Installation
When, simulate the axis of workbench 18, load the axis of workbench 11 and the axis collinear of workbench 2.
Refering to Fig. 1, Fig. 5, the firm banking 16 is welded to form by sleeve and bottom plate, and sleeve bottom at bottom plate connecting with welding
Reinforcement is connected to, bottom plate is provided with four through holes, for firm banking 16 to be fixed on ground black iron 17 through bolt.It is described solid
The sleeve upper end for determining base 16 is provided with a through hole for fixing limiters 23 through No. 3 clamping screws 14 in radial directions.
Refering to Fig. 1, Fig. 5, described limiter 23 is the L-type structure being welded by vertical axes, pane and horizon bar
Part.In U-type groove on the external cylindrical surface of the left end insertion loading workbench 11 of the horizon bar of the limiter 23, make loading work
Platform 11 can not rotate；The through hole vertical with vertical axes axis is evenly arranged with the vertical axes axis direction of the limiter 23,
During installation, the vertical axes of limiter 23 are inserted in the sleeve of firm banking 16, after adjusting height, No. 3 clamping screws 14
Through hole also cross firm banking 16 and the through hole in the vertical axes of limiter 23, limiter 23 is fixed on firm banking 16
On.
2nd, radial loaded part
Refering to Fig. 1, Fig. 6, the radial loaded part is by 13 groups of the identical radial direction piezoelectric ceramics loading device of four nested structures
Into the identical radial direction piezoelectric ceramics loading device 13 of four nested structures is distributed on around loading workbench 11.
Refering to Fig. 6, the radial direction piezoelectric ceramics loading device 13 includes radial loaded firm banking 24, radial loaded platform
26th, No. 1 expansion link 25, radial direction Universal caster 27, radial direction pull pressure sensor 28, coupling bar 29, radial direction piezoelectric ceramics actuator
30th, radial tightening nut 31, radial direction locking nut 32, radial direction screw mandrel 33, radial displacement transducer 34 and No. 2 clamping screws 15；
Refering to Fig. 6, the radial loaded platform 26 is L-type structure part, is formed by bottom plate, right wall plate weld, four are offered on bottom plate
Individual through hole, for radial loaded platform 26 being fixed on through bolt the top plate of No. 1 expansion link 25.The radial loaded platform 26
A through hole is provided among right wall plate, for through radial direction screw mandrel 33.The radial tightening nut 31 is arranged on radial direction screw mandrel 33
On, and the left side of the right wall plate positioned at radial loaded platform 26, the radial direction locking nut 32 are arranged on radial direction screw mandrel 33, and
And the right side of the right wall plate positioned at radial loaded platform 26.
Refering to Fig. 6, the right-hand member of the radial direction piezoelectric ceramics actuator 30 is screwed with the left end of radial direction screw mandrel 33 to be coupled,
The right-hand member of the left end of radial direction piezoelectric ceramics actuator 30 and coupling bar 29 by thread connection, the left end of the coupling bar 29 with
The right-hand member thread connection of radial direction pull pressure sensor 28, left end and the radial direction Universal caster 27 of the radial direction pull pressure sensor 28
Right-hand member thread connection, the ball of the left end of the radial direction Universal caster 27 contacts with loading the external cylindrical surface of workbench 11；
Refering to Fig. 6, the shell of radial displacement transducer 34 is fixed on the upper surface of the bottom plate of radial loaded platform 26, and radial displacement passes
The axis of the interior axle of sensor 34 and the diameter parallel of radial direction piezoelectric ceramics actuator 30, the interior axle of radial displacement transducer 34 is from left end
Stretch out, the interior axle left end of radial displacement transducer 34 is fixed on coupling bar 29 so that the interior axle of radial displacement transducer 34 is with connection
Bar 29 moves together, and the interior axle right-hand member of radial displacement transducer 34 has the movement that senser element perceives the interior axle of radial displacement transducer 34
Distance, reach the purpose of the displacement of measurement radial direction Universal caster 27.
Refering to Fig. 6, No. 1 expansion link 25 is welded by top plate and two completely identical in structure small axles, two knots
The identical small axle of structure is welded on the center line of top plate lower surface, and top plate is provided with four screwed holes, is loaded for fixed radial
Two small axles of 26, No. 1 expansion link 25 of platform are uniformly provided with through hole vertically；
Refering to Fig. 6, the loading firm banking 24 is formed by bottom plate and two completely identical in structure sleeve welds, sleeve and bottom
Plate connection place is welded with four reinforcements, and the sleeve upper end of loading firm banking 24 is provided with a through hole.During installation, according to work
The height of the height adjustment radial direction Universal caster 27 of platform 2.Then, the loading sleeve of firm banking 24 is passed through with No. 2 clamping screws 15
The through hole of two small axles of the through hole of upper end and No. 1 expansion link 25 and fixation, the bottom plate of the loading firm banking 24 are provided with four
Individual through hole, for loading firm banking 24 to be fixed on ground black iron 17 through bolt.
Refering to Fig. 1, Fig. 6, pretightning force of the radial direction Universal caster 27 to loading workbench 11, regulating step are adjusted before loading
It is as follows：Turn radial tightening nut 31 makes radial direction screw mandrel 33 be moved in the right wall plate through hole of loading bench 26, the radial direction screw mandrel
33 drive radial direction pull pressure sensor 28, coupling bar 29 and radial direction Universal caster 27 move so that 27 pairs of radial direction Universal caster adds
The contact of workbench 11 and pretension are carried, then, then tightening radial direction locking nut 32 makes radial direction screw mandrel 33 be fixed on radial loaded platform 26
On.
3rd, axial direction loading section
Refering to Fig. 1, it is identical that the axially loaded part includes line slideway 1,4, two, the screw structure of linear slider 3,2
No. 1 hydraulic cylinder 7, gantry 8, ram 9 and axial piezoelectric ceramics loading device 6.
Refering to Fig. 1, Fig. 7, the axial piezoelectric ceramics loading device 6 include axially loaded 37, axial Universal caster 41,
Shaft position sensor 45, axial push-pull force snesor 40, axial piezoelectric ceramics actuator 35, axial pretightening nut 36, axial direction
Locking nut 38 and axial screw mandrel 39；
Refering to Fig. 7, described axially loaded 37 structural member formed by top plate, right plate, by-level plate weld, top plate opens up
There are four through holes, for the lower surface for being fixed on ram 9 axially loaded 37 through bolt, the middle water of axially loaded 37
Through hole is offered among flat board, for through axial screw mandrel 39, the axial lower end of screw mandrel 39 and axial piezoelectric ceramics actuator
35 threaded upper ends connection, the lower end of the axial piezoelectric ceramics actuator 35 and the threaded upper ends of axial push-pull force snesor 40
Connection, the lower end of the axial push-pull force snesor 40 couple with the axial threaded upper ends of Universal caster 41, axial Universal caster 41
Lower end sphere with loading the upper surface of workbench 11.
Refering to Fig. 7, the axial pretightening nut 36 is arranged on axial screw mandrel 39, and in axially loaded 37
Between level board it is following, the axial lock nut 38 is arranged on axial screw mandrel 39, and in axially loaded 37
Between level board top.During installation, first make the axial line of axial piezoelectric ceramics actuator 35 vertical with workbench 2, then, unscrew
Axial lock nut 38, then axial piezoelectric ceramics actuator 35 is adjusted to the pre- of loading workbench 11 by axial pretightening nut 36
Clamp force, then axial lock nut 38 is screwed, axial screw mandrel 39 is fixed on the by-level plate of axially loaded 37.
Refering to Fig. 7, the shell of the shaft position sensor 45 is on the right plate of axially loaded 37, axial position
The interior axle of displacement sensor 45 extends downwardly from, the end of the interior axle of shaft position sensor 45 and axial piezoelectric ceramics actuator 35
Lower end is coupled by plate, the axial line of the axis of the interior axle of shaft position sensor 45 and axial piezoelectric ceramics actuator 35
It is parallel, when axial piezoelectric ceramics actuator 35 moves, drive the interior axle movement of shaft position sensor 45, the upper end peace of interior axle
Equipped with sensing element, interior axle change in displacement is perceived.
Refering to Fig. 1, the line slideway 1 is bolted on ground black iron 17, and described linear slider 3 is arranged on straight
On line guide rail 1；Coupled between described gantry 8 and linear slider 3 by No. 2 screws 4；The ram 9 can along 8 liang of gantry side rails
Move up and down；Described two completely identical in structure No. 1 hydraulic cylinder 7 bases are bolted on the crossbeam lower surface at gantry 8,
The piston rod end of described two completely identical in structure No. 1 hydraulic cylinders 7 is screwed with the upper surface of ram 9 to be coupled, described
The piston rod diameter parallel of two completely identical in structure No. 1 hydraulic cylinders 7, and perpendicular to the upper surface of loading workbench 11.Peace
During dress, the piston overhang of No. 1 hydraulic cylinder 7 is adjusted according to the height of workbench 2, and then realizes the position adjustments of ram 9, makes this
Testing stand is applied to the reliability test of the workbench 2 of Multiple Type.
4th, moment of torsion loading section
Refering to Fig. 1, Fig. 4, the moment of torsion loading section includes hydraulic efficiency servo-valve 10, coupling spindle 19, No. 1 clamping screws 20, moments of torsion
Sensor 42, support plate 43, the shaft coupling 47 of shaft coupling 46,2 of photoelectric sensor 44,1 and hydraulic pump 21.Described branch
Board 43 is the L-type structure part being welded by top plate and vertical panel, has two through holes to be used for through bolt supporting on top plate
Plate 43 is fixed on the lower surface of ram 9, and the vertical panel of the support plate 43 is parallel to the axis of hydraulic pump 21, the support plate 43
Vertical panel on offer four through holes, for torque sensor 42 being fixed on through bolt the vertical panel of support plate 43.
There are four through holes the upper end of described hydraulic pump 21, for hydraulic pump 21 to be fixed under ram 9 through No. 1 clamping screw 20
Surface.The hydraulic efficiency servo-valve 10 is arranged on the side of cylinder block of hydraulic pump 21 by bolt, and the axle of the hydraulic pump 21 is from lower end
Stretch out, be fixedly connected with the output shaft of torque sensor 42 by No. 1 shaft coupling 46.The base of the torque sensor 42 passes through
The vertical panel of bolt and support plate 43 is fixedly connected, and the input shaft of the torque sensor 42 passes through 2 with the upper end of coupling spindle 19
Number shaft coupling 47 is fixedly connected.In the endoporus of the bottom insertion simulation workbench 18 of the coupling spindle 19, under coupling spindle 19
End offers flat key groove, and moment of torsion is passed to coupling spindle 19 by simulation workbench 18 by flat key.During installation, hydraulic pump 21
Axis and the axis of torque sensor 42, the axis coaxle of simulation workbench 18, and perpendicular to the workbench upper table of workbench 2
Face.Through hole has been taken at the bottom of the photoelectric sensor 44, for through being bolted on the left of the vertical panel of support plate 43
On face, photoelectric sensor 44 is located between the output shaft and support plate of torque sensor 42, the torque sensor 44
Reflecting piece is installed on output shaft, for reflecting the light of photoelectric sensor 44, makes light-sensitive element perception velocities signal.
5th, control section
Refering to Fig. 1, Fig. 8, the control section includes radial direction controller, axial controller, torque controller and working table movement
Controller etc..
The radial direction controller is connected by RS232C ports with industrial computer, and radial direction controller output signal gives radial direction piezoelectricity
Ceramic actuator 30, while radial direction pull pressure sensor 28, radial displacement transducer 34 collection loading signal are amplified by signal
Device is uploaded to radial direction controller, radial direction controller output signal control radial direction piezoelectric ceramics actuator 30, realizes that radial direction piezoelectricity is made pottery
The pressure of porcelain actuator 30, the closed-loop control of displacement.
The axial controller is connected by RS232C ports with industrial computer, and axial controller output signal gives axial piezoelectricity
Ceramic actuator 35, while axial push-pull force snesor 40, shaft position sensor 45 collection loading signal are amplified by signal
Device is uploaded to axial controller, and axial controller output signal controls axial piezoelectric ceramics actuator 35, realizes axial piezoelectricity pottery
The pressure of porcelain actuator 35, the closed-loop control of displacement.
The torque controller is connected by RS232C ports with industrial computer, and torque controller outputs signal to hydraulic servo
Valve 10, hydraulic efficiency servo-valve 10 control hydraulic pump 21, while torque sensor 42 and photoelectric sensor by valve openings of sizes
44 collection loading signals are uploaded to torque controller, torque controller output signal control hydraulic efficiency servo-valve by signal amplifier
10, hydraulic efficiency servo-valve 10 controls hydraulic pump 21, realizes the closed-loop control of the rotating speed and moment of torsion of hydraulic efficiency servo-valve 10.
The working table movement controller is connected by RS232C ports with industrial computer, working table movement controller output letter
Number give workbench 2.
The operation principle of heavy CNC vertical turning machine workbench and its feed mechanism reliability test system：
Refering to Fig. 1, workbench 2 is fixed on ground black iron 17 first.Secondly, installation simulation workbench 18 and loading workbench
11, make the axis of simulation workbench 18, load the axis of workbench 11 and the rotation conllinear of workbench 2.According to simulation work
Part weight installs balancing weight 12.Moment of torsion loading section is installed, adjusts the axial line and workbench 2, simulation workbench of hydraulic pump 21
18th, the rotation conllinear of workbench 11 is loaded.Axial loading section is installed, adjusts the axis of axial piezoelectric ceramics actuator 35
Perpendicular to workbench 2.Radial loaded part is installed, the axis of adjustment radial direction piezoelectric ceramics actuator 30 is perpendicular to workbench 2
Axis of rotation, and pass through the axis of rotation of workbench 2.Before experiment, set according to the loading spectrum of actual cut process in operation interface
Put the correlation test parameters such as dynamic and static cutting force size and torque.In experiment, the various sensors collection phase in testing stand
Induction signal, and be sent to processor in time and carry out signal transacting, and corresponding executive component is fed back in time, closed-loop control is formed,
And record corresponding test data.After experiment, shutoff operation program is simultaneously cut off the electricity supply.
Heretofore described embodiment is it will be appreciated that and using this hair for the ease of the those skilled in the art
It is bright, a kind of a kind of present invention simply embodiment of optimization, or perhaps preferably specific technical scheme, therefore the invention is not restricted to
Implement a kind of this description of more specific technical scheme.If related technical staff is adhering to basic technical scheme of the present invention
In the case of make need not move through creative work equivalent structure change or it is various modification it is all within the scope of the present invention.
Claims (8)
1. a kind of heavy CNC vertical turning machine workbench and its feed mechanism reliability test system, it is characterised in that this is reliable
Property pilot system include balancing weight inertia and load and load servicing unit part, radial loaded part, axially loaded part, moment of torsion
Loading section and automatically control part；
The radial loaded part is by the identical radial direction piezoelectric ceramics loading device of four nested structures（13）Composition, described four sets
Completely identical in structure radial direction piezoelectric ceramics loading device（13）It is distributed on loading workbench（11）Around；
The radial direction piezoelectric ceramics loading device（13）Including radial loaded platform（26）, radial direction Universal caster（27）, radial direction tension and compression
Force snesor（28）, coupling bar（29）, radial direction piezoelectric ceramics actuator（30）, radial tightening nut（31）, radial direction locking nut
（32）, radial direction screw mandrel（33）And radial displacement transducer（34）；The radial direction Universal caster（27）, radial direction pull pressure sensor
（28）, coupling bar（29）, radial direction piezoelectric ceramics actuator（30）, radial direction screw mandrel（33）Be screwed connection successively；The radial direction
Screw mandrel（33）Through radial loaded platform（26）Right wall plate through hole；The radial tightening nut（31）Installed in radial direction screw mandrel
（33）On, and it is located at radial loaded platform（26）Right wall plate left side, the radial direction locking nut（32）Installed in radial direction silk
Bar（33）On, and it is located at radial loaded platform（26）Right wall plate right side；The radial displacement transducer（34）Shell is fixed
In radial loaded platform（26）The upper surface of bottom plate, radial displacement transducer（34）The axis of interior axle and radial direction piezoelectric ceramics actuator
（30）Diameter parallel, radial displacement transducer（34）Interior axle from left end stretch out, radial displacement transducer（34）Interior axle left end
It is fixed on coupling bar（29）On；
The axially loaded part includes axial piezoelectric ceramics loading device（6）；
The axial piezoelectric ceramics loading device（6）Including axially loaded（37）, axial Universal caster（41）, axial displacement pass
Sensor（45）, axial push-pull force snesor（40）, axial piezoelectric ceramics actuator（35）, axial pretightening nut（36）, axial lock
Tight nut（38）With axial screw mandrel（39）；The axial Universal caster（41）, axial push-pull force snesor（40）, axial piezoelectricity pottery
Porcelain actuator（35）, axial screw mandrel（39）Be screwed connection successively；The axial pretightening nut（36）Installed in axial screw mandrel
（39）On, and positioned at axially loaded（37）By-level plate following, the axial lock nut（38）Installed in axle
To screw mandrel（39）On, and positioned at axially loaded（37）By-level plate top；The shaft position sensor（45）
Shell be arranged on axially loaded（37）On, shaft position sensor（45）Interior shaft end and axial piezoelectric ceramics actuator
（35）Lower end coupled by plate；
The moment of torsion loading section includes coupling spindle（19）, No. 1 clamping screw（20）, torque sensor（42）, support plate（43）
And hydraulic pump（21）；Described hydraulic pump（21）Pass through No. 1 clamping screw（20）It is fixed on ram（9）Lower surface；The liquid
Press pump（21）Pass through No. 1 shaft coupling（46）And torque sensor（42）Output axis connection；The torque sensor（42）It is defeated
Enter axle and pass through No. 2 shaft couplings（47）With coupling spindle（19）Connection；The coupling spindle（19）Pass through flat key and simulation workbench（18）
Endoporus connection；The torque sensor（42）It is fixed on support plate（43）On；The support plate（43）It is fixed on ram（9）
On；
The balancing weight inertia loading servicing unit part includes balancing weight（12）With loading servicing unit；
The balancing weight（12）It is fixed in simulation workbench（18）On；The loading servicing unit includes loading workbench
（11）, simulation workbench（18）, ring-shaped guide rail pair（22）；The simulation workbench（18）It is fixed on workbench（2）On, the ring
Shape guideway（22）Guide rail be fixed on simulation workbench（18）, the ring-shaped guide rail pair（22）Sliding block be fixed on loading work
Platform（11）Lower surface；The simulation workbench（18）Axis, loading workbench（11）Axis and workbench（2）Axis
Collinearly.
2. a kind of heavy CNC vertical turning machine workbench according to claim 1 and its feed mechanism reliability test system
System, it is characterised in that
The control section includes radial direction controller, axial controller, torque controller and working table movement controller etc.；
The radial direction controller is connected by RS232C ports with industrial computer；
The axial controller is connected by RS232C ports with industrial computer；
The torque controller is connected by RS232C ports with industrial computer；
The working table movement controller is connected by RS232C ports with industrial computer.
3. a kind of heavy CNC vertical turning machine workbench according to claim 1 and its feed mechanism reliability test system
System, it is characterised in that
The balancing weight（12）There is rectangle raised among lower surface, have rectangular recess among upper surface, be provided among groove
Through hole perpendicular to upper surface, for one or more balancing weights to be fixed on simulation workbench through bolt（18）On.
4. a kind of heavy CNC vertical turning machine workbench according to claim 1 and its feed mechanism reliability test system
System, it is characterised in that
The simulation workbench（18）For disk part by performing, centre is provided with through hole, keyway is offered in through hole, passes through flat key and connection
Spindle（19）Connection, simulate workbench（18）Upper surface outer ring be designed with for installing balancing weight（12）T-slot, T-slot
Center line through simulation workbench（18）Axle center, simulate workbench（18）Upper surface be provided with for installing ring-shaped guide rail
It is secondary（22）The annulus neck of guide rail, is evenly equipped with annulus neck for stationary annular guideway（22）Guide rail screwed hole；
The loading workbench（11）For ring-shape accessory, workbench is loaded（11）External cylindrical surface on offer in the axial direction
One U-shaped groove, for inserting gag lever post（23）End, make loading workbench（11）It can not rotate, can only be along loading work
Platform（11）Axis direction movement.
5. a kind of heavy CNC vertical turning machine workbench according to claim 1 and its feed mechanism reliability test system
System, it is characterised in that
The loading servicing unit also includes firm banking（16）, No. 3 clamping screws（14）And limiter（23）；
The firm banking（16）It is welded to form by sleeve and bottom plate, sleeve bottom at bottom plate connecting with being welded with reinforcement, bottom
Plate is provided with four through holes, for through bolt firm banking（16）It is fixed on ground black iron（17）On, firm banking（16）'s
Sleeve upper end is provided with a through hole and is used for through No. 3 clamping screws in radial directions（14）Fixed limiter（23）；
Described limiter（23）It is the L-type structure part being welded by vertical axes, pane and horizon bar, the left end of horizon bar
Insertion loading workbench（11）External cylindrical surface on U-type groove in, make loading workbench（11）It can not rotate；The limiter
（23）Vertical axes axis direction on be evenly arranged with the through hole vertical with vertical axes axis.
6. a kind of heavy CNC vertical turning machine workbench according to claim 1 and its feed mechanism reliability test system
System, it is characterised in that
The moment of torsion loading section also includes hydraulic efficiency servo-valve（10）And photoelectric sensor（44）；
The hydraulic efficiency servo-valve（10）Hydraulic pump is arranged on by bolt（21）Side of cylinder block；
The photoelectric sensor（44）Bottom taken through hole, for through being bolted to support plate（43）Vertical panel
On left surface, photoelectric sensor（44）Positioned at torque sensor（42）Output shaft and support plate between, the moment of torsion passes
Sensor（44）Output shaft on be provided with for reflecting photoelectric sensor（44）Light reflecting piece.
7. a kind of heavy CNC vertical turning machine workbench according to claim 1 and its feed mechanism reliability test system
System, it is characterised in that
The axially loaded part includes line slideway（1）, linear slider（3）, No. 2 screws（4）, two it is completely identical in structure
No. 1 hydraulic cylinder（7）, gantry（8）And ram（9）；
The line slideway（1）It is bolted on ground black iron（17）On, described linear slider（3）Installed in line slideway
（1）On；Described gantry（8）With linear slider（3）Between pass through No. 2 screws（4）Connection；Described two completely identical in structure 1
Number hydraulic cylinder（7）Base is bolted on gantry（8）Crossbeam lower surface, described two completely identical in structure No. 1 liquid
Cylinder pressure（7）Piston rod end and ram（9）Upper surface be screwed connection, described two completely identical in structure No. 1 liquid
Cylinder pressure（7）Piston rod diameter parallel, and perpendicular to loading workbench（11）Upper surface.
8. a kind of heavy CNC vertical turning machine workbench according to claim 1 and its feed mechanism reliability test system
System, it is characterised in that the radial direction piezoelectric ceramics loading device（13）Also include firm banking（24）, No. 1 expansion link（25）、2
Number clamping screw（15）；No. 1 expansion link（25）It is welded by top plate and two completely identical in structure small axles, two knots
The identical small axle of structure is welded on the center line of top plate lower surface, and top plate is provided with four screwed holes, is loaded for fixed radial
Platform（26）, No. 1 expansion link（25）Two small axles be uniformly provided with through hole vertically；
The loading firm banking（24）Formed by bottom plate and two completely identical in structure sleeve welds, sleeve and bottom plate connecting
Place is welded with four reinforcements, loads firm banking（24）Sleeve upper end be provided with a through hole；With bolt also cross loading
Firm banking（24）The through hole of sleeve upper end and No. 1 expansion link（25）Two small axles through hole and fixation, it is described loading fix
Base（24）Bottom plate be provided with four through holes, for through bolt loading firm banking（24）It is fixed on ground black iron（17）On.
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