CN107806989B - 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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- CN107806989B CN107806989B CN201711028021.4A CN201711028021A CN107806989B CN 107806989 B CN107806989 B CN 107806989B CN 201711028021 A CN201711028021 A CN 201711028021A CN 107806989 B CN107806989 B CN 107806989B
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- 238000012360 testing method Methods 0.000 title claims abstract description 53
- 230000007246 mechanism Effects 0.000 title claims abstract description 34
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- 238000011068 loading method Methods 0.000 claims abstract description 48
- 238000004088 simulation Methods 0.000 claims description 43
- 230000008878 coupling Effects 0.000 claims description 36
- 238000010168 coupling process Methods 0.000 claims description 36
- 238000005859 coupling reaction Methods 0.000 claims description 36
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 229910052742 iron Inorganic materials 0.000 claims description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 6
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- 238000013461 design Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000005520 cutting process Methods 0.000 description 12
- 238000009434 installation Methods 0.000 description 9
- 230000003068 static effect Effects 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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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 systems；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 the load of clump weight inertia and load auxiliary device part, radial loaded part, axially loaded part, torque loading section and automatic control part；Radial loaded part includes four sets of radial 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；Torque loading section includes hydraulic pump, torque sensor, hydraulic efficiency servo-valve and photoelectric sensor；Automatically controlling part includes radial controller, axial controller, torque controller and working table movement controller.
Description
Technical field
The invention belongs to heavy cutting process equipment reliability test technical fields 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 technique
Heavy CNC vertical turning machine is mainly used for the processing of large-scale, super-huge part, is defence and military, wind-power electricity generation, core
The machining device of the industries such as electricity, communications and transportation, metallurgy, engineering machinery indispensability.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, integrity problem is serious, and it is raw to have become lathe
Produce enterprise and user's focus of attention.Due to the factors such as heavy machine tool scale is huge, whole aircraft reliability test 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
It leaks cruelly, find out the factor for influencing 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 work starting later, therefore domestic at present not yet to the key feature progress reliability examination of heavy CNC vertical turning machine
Research is tested, current only testing stand also simply by dry run or carries out the progress of user's field reliability test, specifically for
The reliability test country of heavy CNC vertical turning machine key feature almost blank.The present invention is vertical according to heavy type numerical control
The actual use operating condition of formula Lathe bench and its feed mechanism proposes a kind of with simulation actual cut load and inertia load
The heavy CNC vertical turning machine workbench of lotus and its reliability test system of feed mechanism.
Summary of the invention
It can not be to heavy digital control vertical the technical problem to be solved by the present invention is to overcome current reliability test
Lathe bench and its feed mechanism carry out the reliability test problem of simulation actual condition load, provide a kind of using piezoelectricity
Ceramic actuator, hydraulic pump, clump weight simulate the heavy CNC vertical turning machine of practical 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 clump weight inertia load and
It loads auxiliary device part, radial loaded part, axially loaded part, torque loading section and automatically controls part；
The radial loaded part is made of the identical radial piezoelectric ceramics loading device 13 of four nested structures, and described four
The identical radial piezoelectric ceramics loading device 13 of nested structure is evenly arranged on around load workbench 11；
The radial direction piezoelectric ceramics loading device 13 includes radial loaded platform 26, radial Universal caster 27, radial pressure
Sensor 28, coupling bar 29, radial piezoelectric ceramics actuator 30, radial tightening nut 31, radial locking nut 32, radial screw rod
33 and radial displacement transducer 34；The radial direction Universal caster 27, radial pull pressure sensor 28, coupling bar 29, radial piezoelectricity
Ceramic actuator 30, radial screw rod 33 are successively screwed connection；The radial direction screw rod 33 passes through the right wall of radial loaded platform 26
The through-hole of plate；The radial tightening nut 31 is mounted on radial screw rod 33, and be located at the right wall plate of radial loaded platform 26
Left side, the radial direction locking nut 32 is mounted on radial screw rod 33, and is located at the right side of the right wall plate of radial loaded platform 26；
34 shell of radial displacement transducer is fixed on the upper surface of 26 bottom plate of radial loaded platform, 34 inner shaft of radial displacement transducer
Axis is parallel with the axis of radial piezoelectric ceramics actuator 30, and the inner shaft of radial displacement transducer 34 is stretched out from left end, radial position
34 inner shaft left end of displacement sensor is fixed on coupling bar 29；
The axially loaded part includes axial piezoelectric ceramics loading device 6；
The axial direction piezoelectric ceramics loading device 6 includes axially loaded 37, axial Universal caster 41, axial displacement sensing
Device 45, axial push-pull force snesor 40, axial piezoelectric ceramics actuator 35, axial pretightening nut 36,38 and of axial lock nut
Axial screw rod 39；The axial direction Universal caster 41, axial push-pull force snesor 40, axial piezoelectric ceramics actuator 35, axial silk
Bar 39 is successively screwed connection；The axial pretightening nut 36 is mounted on axial screw rod 39, and is located at axially loaded
37 by-level plate it is following, the axial lock nut 38 is mounted on axial screw rod 39, and be located at axially loaded
The top of 37 by-level plate；The shell of the shaft position sensor 45 is mounted on axially loaded 37, axial displacement
The inner shaft end of sensor 45 is coupled with the lower end of axial piezoelectric ceramics actuator 35 by plate；
The torque loading section includes 19, No. 1 clamping screws 20 of coupling spindle, torque sensor 42, support plate 43 and liquid
Press pump 21；The 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
The output axis connection of shaft coupling 46 and torque sensor 42；The input shaft of the torque sensor 42 by No. 2 shaft couplings 47 with
Coupling spindle 19 connects；The coupling spindle 19 is connect by flat key with the inner hole for simulating workbench 18；The torque sensor 42 is solid
It is scheduled on support plate 43；The support plate 43 is fixed on ram 9；
Clump weight inertia load auxiliary device part includes clump weight 12 and load auxiliary device；
The clump weight 12 is fixed on simulation workbench 18；The load auxiliary device includes load workbench 11, mould
Quasi- workbench 18, ring-shaped guide rail pair 22；The simulation workbench 18 is fixed on workbench 2, and the ring-shaped guide rail pair 22 is led
Rail is fixed on simulation workbench 18, and the sliding block of the ring-shaped guide rail pair 22 is fixed on the lower surface of load workbench 11；The mould
The axis of quasi- workbench 18 loads the axis of workbench 11 and the axis collinear of workbench 2.
The automatic control part includes radial controller, axial controller, torque controller and working table movement control
Instrument；The radial direction controller is connect by the port RS232C with industrial personal computer；The axial direction controller passes through the port RS232C and work
The connection of control machine；The torque controller is connect by the port RS232C with industrial personal computer；The working table movement controller passes through
The port RS232C is connect with industrial personal computer.
There is rectangle raised among 12 lower surface of clump weight, has rectangular recess among upper surface, opened among groove
There is the through-hole perpendicular to upper surface, for one or more clump weights to be fixed on simulation workbench 18 across bolt.
The simulation workbench 18 is disk part by performing, and centre is equipped with through-hole, offers keyway in through-hole, by flat key with
Coupling spindle 19 couples, and the upper surface outer ring design of simulation workbench 18 has a T-slot for installing clump weight 12, in T-slot
Heart line passes through the axle center of simulation workbench 18, and the upper surface of simulation workbench 18 is provided with for installing annular 22 guide rail of guideway
Annulus card slot, the threaded hole of the guide rail for stationary annular guideway 22 is evenly equipped in annulus card slot；
The load workbench 11 is ring-shape accessory, loads and offers in the axial direction on the external cylindrical surface of workbench 11
One U-shaped through slot makes to load workbench 11 and is not able to rotate for being inserted into the end of limiter 23, can only be along load workbench 11
Axis direction it is mobile.
The load auxiliary device further 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, is welded with reinforcing rib at sleeve bottom and bottom plate connecting,
It is set on bottom plate there are four through-hole, for firm banking 16 to be fixed on ground black iron 17, the sleeve of firm banking 16 across bolt
Upper end is provided with a through-hole for across the fixed limiter 23 of No. 3 clamping screws 14 in radial directions；
The limiter 23 is the L-type structure part being welded by vertical axes, pane and horizon bar, a left side for horizon bar
In U-type groove on the external cylindrical surface of end insertion load workbench 11, it is able to rotate load workbench 11 not；The limiter 23
The through-hole vertical with vertical axes axis is evenly arranged on vertical axes axis direction；
The torque loading section further includes hydraulic efficiency servo-valve 10, photoelectric sensor 44；
The hydraulic efficiency servo-valve 10 is mounted on the side of cylinder block of hydraulic pump 21 by bolt；
There is through-hole on the pedestal of the photoelectric sensor 44, for being fixed on the vertical panel of support plate 43 across bolt
On left side, photoelectric sensor 44 is located between the output shaft and support plate of torque sensor 42, the torque sensor
The reflecting piece of light for reflecting photoelectric sensor 44 is installed on 44 output shaft.
The axially loaded part includes 4, two completely identical in structure 1 linear guide 1, linear slider 3,2, screw
Number hydraulic cylinder 7, gantry 8 and ram 9；
The linear guide 1 is bolted on ground black iron 17, and the linear slider 3 is mounted on linear guide 1
On；Coupled between described gantry 8 and linear slider 3 by No. 2 screws 4；Described two completely identical in structure No. 1 hydraulic cylinders 7
Pedestal is bolted on the crossbeam lower surface at gantry 8, the piston rod of described two completely identical in structure No. 1 hydraulic cylinders 7
End is screwed with the upper surface of ram 9 to be coupled, the piston rod axis of described two completely identical in structure No. 1 hydraulic cylinders 7
In parallel, and perpendicular to the upper surface of load workbench 11.
The radial direction piezoelectric ceramics loading device 13 further includes the load telescopic rod 25,2 of firm banking 24,1 locking screw
Bolt 15；No. 1 telescopic rod 25 is welded by top plate and two completely identical in structure small axis, and two completely identical in structure
Small axis is welded on the middle line of top plate lower surface, and top plate is opened there are four threaded hole, flexible for fixed radial loading bench 26,1
Two small axis of bar 25 are uniformly provided with through-hole along axial direction；
The load firm banking 24 is formed by bottom plate and two completely identical in structure sleeve welds, and sleeve and bottom plate join
Place's weldering is connect there are four reinforcing rib, the sleeve upper end of load firm banking 24 is provided with a through-hole；With bolt also cross load
The through-holes of two small axis of the through-hole and No. 1 telescopic rod 25 of 24 sleeve upper end of firm banking and fixation, the load firm banking
24 bottom plate is opened there are four through-hole, for load firm banking 24 to be fixed on ground black iron 17 across bolt.
Compared with prior art the beneficial effects of the present invention are:
1. heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system use liquid
Press pump, piezoelectric ceramics actuator and clump weight loading section carry out mould to heavy CNC vertical turning machine workbench and its feed mechanism
The load for intending dynamic and static cutting force simulate to tested heavy CNC vertical turning machine workbench and its feed mechanism true
The reliability test of operating condition, and carry out real-time failure data acquisition is the reliability assessment in later period, Reliability modeling and reliable
Property prediction practical basic data is provided, substantially reduce data acquisition time.
2. torque of the present invention load 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 load torque can be adjusted according to actual condition,
Test parameters can be stored simultaneously, so as to subsequent 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 load
The size, frequency and test period of power are cut, while test parameters can be stored, so as to subsequent inquiry and analysis.
4. axially and radially cutting force of the present invention is overcome by piezoelectric ceramics actuator loading method using liquid
The shortcomings that when cylinder pressure loads: due to machinery inertial, high frequency load can not be carried out to load object using hydraulic cylinder.
5. the reliability test system of heavy CNC vertical turning machine workbench of the present invention and its feed mechanism adapts to
Range is wider.Due to devising corresponding height adjustment mechanism, when test, only need to be by different heavy CNC vertical turning machine works
Make platform and its feed mechanism is mounted on ground black iron it can be carried out the detection of reliability load test and performance parameter with
Monitoring, embodies 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 mainly passes through pull pressure sensor, displacement sensor to the cutting force real-time monitoring of simulation, realizes real time monitoring
With closed-loop control and feedback, the precision of Lai Tigao simulation cutting power, while the dynamic cutting force parameter of load being shown upper
On the man machine operation interface of industrial personal computer.
Detailed description of the invention
The present invention will be further described below with reference to the drawings:
Fig. 1 is the axis of heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
Survey perspective view；
Fig. 2 is to add in heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
The simulation workbench axonometric projection graph of assist apparatus part；
Fig. 3 is to match in heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
The axonometric projection graph of pouring weight；
Fig. 4 is to add in heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
The axonometric projection graph of assist apparatus part and torque loading section；
Fig. 5 is in heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
Load the axonometric projection graph of the limiter of auxiliary device part；
Fig. 6 is in heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
The axonometric projection graph of radial piezoelectric ceramics loading device；
Fig. 7 is in heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
The axonometric projection graph of axial piezoelectric ceramics loading device；
Fig. 8 is in heavy CNC vertical turning machine workbench of the present invention and its feed mechanism reliability test system
Automatic Control Theory block diagram.
In figure: 1. linear guides, 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. load workbench, 12. clump weights, 13.
Radial piezoelectric ceramics loading device, No. 14.3 clamping screws, No. 15.2 clamping screws, 16. firm bankings, 17. ground black irons, 18.
Simulate workbench, 19. coupling spindles, No. 20.1 clamping screws, 21. hydraulic pumps, 22. ring-shaped guide rail pairs, 23. limiters, 24. loads
Firm banking, No. 25.1 telescopic rods, 26. radial loaded platforms, 27. radial Universal casters, 28. radial pull pressure sensor, 29.
Extension bar, 30. radial piezoelectric ceramics actuators, 31. radial tightening nuts, 32. radial locking nuts, 33. radial screw rods, 34. diameters
To displacement sensor, 35. axial piezoelectric ceramics actuators, 36. axial pretightening nuts, 37. axially loaded, 38. axial lockings
Nut, 39. axial screw rods, 40. axial push-pull force snesors, 41. axial Universal casters, 42. torque sensors, 43. support plates,
44. photoelectric sensor, 45. shaft position sensors, No. 46.1 shaft couplings, No. 47.2 shaft coupling
Specific embodiment
The present invention is explained in detail with reference to the accompanying drawing:
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention:
Refering to fig. 1, a kind of heavy CNC vertical turning machine workbench and its feed mechanism reliability test system, including counterweight
The load of block inertia and load auxiliary device part, radial loaded part, axially loaded part, torque loading section and automatic control
Part.
One, the load of clump weight inertia and load auxiliary device part
Refering to fig. 1, Fig. 2, Fig. 3, clump weight inertia load auxiliary device part include clump weight 12 and load auxiliary
Device.
Refering to fig. 1, Fig. 3 has among 12 lower surface of clump weight rectangle raised, has rectangle recessed among upper surface
Slot is provided with the through-hole perpendicular to upper surface among groove.When installation, the lower surface protrusion of clump weight 12 is stuck in simulation workbench
In 18 T-slot, clump weight 12 is fixed on simulation workbench 18 with the through-hole that bolt passes through clump weight 12.When the zero of simulation
Part quality is larger, when needing multiple clump weights 12, one of clump weight is placed on another clump weight, and make top
Clump weight lower surface rectangle protrusion and following clump weight upper surface groove cooperate, blending bolt pass through multiple counterweights
The through-hole of block is together fixed on multiple clump weights 12 on simulation workbench 18.
Refering to fig. 1, Fig. 2, Fig. 4, Fig. 5, the load auxiliary device part include load workbench 11, simulation workbench
18, 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 equipped with through-hole, offers key in through-hole
Slot is coupled by flat key with coupling spindle 19, and the upper surface outer ring of simulation workbench 18 offers T-slot, for installing clump weight
12.The center line of the T-slot of the simulation workbench 18 passes through the axle center of simulation workbench 18.It is described to simulate the upper of workbench 18
Surface is provided with the annulus card slot of the guide rail for installing annular guideway 22, is evenly distributed in annulus card slot there are six threaded hole,
Guide rail for stationary annular guideway 22.The axis of rotation of the stationary annular guideway 22 and the axis of simulation workbench 18
Collinearly；The lower surface of the simulation workbench 18 and the upper surface contact connection of workbench 2.When installation, guarantee simulation workbench
18 axis and the axis collinear of workbench 2.
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 load workbench 11 are ring-shape accessory, and the sliding block of the ring-shaped guide rail pair 22 passes through spiral shell
Bolt and the lower surface for loading workbench 11 are fixedly connected, when installation, so that the axis of rotation of ring-shaped guide rail pair 22 and load work
The rotation conllinear of platform 11；A U-shaped through slot is offered in the axial direction on the external cylindrical surface of the load workbench 11, is used
It in the end of insertion limiter 23, is able to rotate load workbench 11 not, can only be moved along the axis direction of load workbench 11.
When installation, simulates the axis of workbench 18, loads the axis of workbench 11 and the axis collinear of workbench 2.
Refering to fig. 1, Fig. 5, the firm banking 16 are welded to form by sleeve and bottom plate, are welded at sleeve bottom and bottom plate connecting
It is connected to reinforcing rib, is set on bottom plate there are four through-hole, for firm banking 16 to be fixed on ground black iron 17 across bolt.It is described solid
The sleeve upper end for determining pedestal 16 is provided with a through-hole for across the fixed limiter 23 of No. 3 clamping screws 14 in radial directions.
Refering to fig. 1, Fig. 5, the limiter 23 are the L-type structures being welded by vertical axes, pane and horizon bar
Part.In U-type groove on the external cylindrical surface of the left end insertion load workbench 11 of the horizon bar of the limiter 23, make to load work
Platform 11 is not able to rotate；It is evenly arranged with the through-hole vertical with vertical axes axis on the vertical axes axis direction of the limiter 23,
When installation, in the sleeve the vertical axes insertion firm banking 16 of limiter 23, after adjusting height, No. 3 clamping screws 14
Limiter 23 is fixed on firm banking 16 by the through-hole also cross firm banking 16 and the through-hole in the vertical axes of limiter 23
On.
Two, radial loaded part
Refering to fig. 1, Fig. 6, the radial loaded part is by the identical radial piezoelectric ceramics loading device of four nested structures
13 compositions, the identical radial piezoelectric ceramics loading device 13 of four nested structure are evenly arranged on around load workbench 11.
Refering to Fig. 6, the radial direction piezoelectric ceramics loading device 13 includes load firm banking 24, radial loaded platform 26,1
Telescopic rod 25, radial Universal caster 27, radial pull pressure sensor 28, coupling bar 29, radial piezoelectric ceramics actuator 30, radial direction
Pre-load nut 31, radial locking nut 32, radial screw rod 33, radial displacement transducer 34 and No. 2 clamping screw 15；
Refering to Fig. 6, the radial loaded platform 26 is L-type structure part, is welded by bottom plate, right wall plate, is opened up on bottom plate
There are four through-holes, for radial loaded platform 26 being fixed on across bolt the top plate of No. 1 telescopic rod 25.The radial loaded platform
A through-hole is provided among 26 right wall plate, for across radial screw rod 33.The radial tightening nut 31 is mounted on radial silk
On bar 33, and it is located at the left side of the right wall plate of radial loaded platform 26, the radial direction locking nut 32 is mounted on radial screw rod 33
On, and it is located at the right side of the right wall plate of radial loaded platform 26.
Refering to Fig. 6, the right end of the radial direction piezoelectric ceramics actuator 30 is screwed with the left end of radial screw rod 33 to be coupled,
The right end of 30 left end of radial direction piezoelectric ceramics actuator and coupling bar 29 is threaded, the left end of the coupling bar 29 and
The right end thread connection of radial pull pressure sensor 28, the left end of the radial direction pull pressure sensor 28 and radial Universal caster 27
Right end thread connection, it is described radial direction Universal caster 27 left end ball with load workbench 11 external cylindrical surface contact；
Refering to Fig. 6,34 shell of radial displacement transducer is fixed on the upper surface of 26 bottom plate of radial loaded platform, radial position
The axis of 34 inner shaft of displacement sensor is parallel with the axis of radial piezoelectric ceramics actuator 30, the inner shaft of radial displacement transducer 34 from
Left end is stretched out, and 34 inner shaft left end of radial displacement transducer is fixed on coupling bar 29 so that 34 inner shaft of radial displacement transducer with
Coupling bar 29 moves together, and 34 inner shaft right end of radial displacement transducer has senser element perception 34 inner shaft of radial displacement transducer
Moving distance achievees the purpose that measure 27 displacement of radial Universal caster.
Refering to Fig. 6, No. 1 telescopic rod 25 is welded by top plate and two completely identical in structure small axis, two knots
The identical small axis of structure is welded on the middle line of top plate lower surface, and top plate is opened there are four threaded hole, is loaded for fixed radial
Two small axis of 26, No. 1 telescopic rod 25 of platform are uniformly provided with through-hole along axial direction；
Refering to Fig. 6, the load firm banking 24 is formed by bottom plate and two completely identical in structure sleeve welds, sleeve
With weldering at bottom plate connecting there are four reinforcing rib, the sleeve upper end of load firm banking 24 is provided with a through-hole.When installation, according to
The height of workbench 2 adjusts the height of radial Universal caster 27.Then, load firm banking 24 is passed through with No. 2 clamping screws 15
The through-hole and fixation, the bottom plate of the load firm banking 24 of two small axis of the through-hole of sleeve upper end and No. 1 telescopic rod 25 are opened
There are four through-holes, for load firm banking 24 to be fixed on ground black iron 17 across bolt.
Refering to fig. 1, Fig. 6 will adjust the pretightning force of radial 27 pairs of load workbench 11 of Universal caster, regulating step before load
As follows: turn radial tightening nut 31 moves radial screw rod 33 in the right wall plate through-hole of loading bench 26, the radial direction screw rod
33 drive radial pull pressure sensor 28, coupling bar 29 and radial Universal caster 27 mobile, so that radial Universal caster 27 is to adding
It carries workbench 11 to contact and pre-tighten, then, then tightening radial locking nut 32 makes radial screw rod 33 be fixed on radial loaded platform 26
On.
Three, axial direction loading section
Refering to fig. 1, the axially loaded part includes that linear guide 1,4, two, the screw structure of linear slider 3,2 are complete
Identical No. 1 hydraulic cylinder 7, gantry 8, ram 9 and axial piezoelectric ceramics loading device 6.
Refering to fig. 1, Fig. 7, the axial direction piezoelectric ceramics loading device 6 includes 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 rod 39；
Refering to Fig. 7, described axially loaded 37 structural member being welded by top plate, right side plate, by-level plate, top plate
It opens up there are four through-hole, for axially loaded 37 being fixed on across bolt the lower surface of ram 9, in axially loaded 37
Between offer through-hole among level board, for promoting across axial screw rod 39, axial direction 39 lower end of screw rod and axial piezoelectric ceramics
The threaded upper ends connection of dynamic device 35, the lower end of the axial direction piezoelectric ceramics actuator 35 and the upper end of axial push-pull force snesor 40
Thread connection, the lower end of the axial push-pull force snesor 40 couple with axial 41 threaded upper ends of Universal caster, axial universal rolling
The lower end spherical surface of pearl 41 is contacted with load 11 upper surface of workbench.
Refering to Fig. 7, the axial pretightening nut 36 is mounted on axial screw rod 39, and is located in axially loaded 37
Between level board it is following, the axial lock nut 38 is mounted on axial screw rod 39, and be located at axially loaded 37 in
Between level board top.When installation, first makes the axial line of axial piezoelectric ceramics actuator 35 vertical with workbench 2, then, unscrew
Axial lock nut 38, then the pre- of 35 pairs of load workbench 11 of axial piezoelectric ceramics actuator is adjusted by axial pretightening nut 36
Clamp force, then axial lock nut 38 is screwed, it is fixed on axial screw rod 39 on axially loaded 37 by-level plate.
Refering to Fig. 7, the shell of the shaft position sensor 45 is mounted on axially loaded 37 right side plate, axial position
The inner shaft of displacement sensor 45 extends downwardly, the end of the inner shaft 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 inner shaft of shaft position sensor 45 and axial piezoelectric ceramics actuator 35
In parallel, when axial piezoelectric ceramics actuator 35 is mobile, drive the inner shaft of shaft position sensor 45 mobile, the upper end peace of inner shaft
Equipped with sensing element, inner shaft change in displacement is perceived.
Refering to fig. 1, the linear guide 1 is bolted on ground black iron 17, and the linear slider 3 is mounted on directly
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
It moves up and down；7 pedestal of described two completely identical in structure No. 1 hydraulic cylinder is 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 axis of two completely identical in structure No. 1 hydraulic cylinders 7 is parallel, and perpendicular to the upper surface of load workbench 11.Peace
When dress, according to the piston overhang of No. 1 hydraulic cylinder 7 of height adjustment of workbench 2, and then realizes that the position of ram 9 is adjusted, make this
Testing stand is suitable for the reliability test of various types of workbench 2.
Four, torque loading section
Refering to fig. 1, Fig. 4, the torque loading section include hydraulic efficiency servo-valve 10,19, No. 1 clamping screws 20 of coupling spindle,
Torque sensor 42, support plate 43, the shaft coupling 47 of shaft coupling 46,2 of photoelectric sensor 44,1 and hydraulic pump 21.It is described
Support plate 43 be the L-type structure part being welded by top plate and vertical panel, there are two through-holes to be used for across bolt handle on top plate
Support 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 bearing
Through-hole there are four being opened up on the vertical panel of plate 43, for torque sensor 42 being fixed on across bolt the vertical panel of support plate 43
On.There are four through-holes for the upper end of the hydraulic pump 21, for hydraulic pump 21 to be fixed on ram 9 across No. 1 clamping screw 20
Lower surface.The hydraulic efficiency servo-valve 10 is mounted on the side of cylinder block of hydraulic pump 21 by bolt, the axis of the hydraulic pump 21 from
Lower end is stretched out, and is fixedly connected with the output shaft of torque sensor 42 by No. 1 shaft coupling 46.The pedestal of the torque sensor 42
It is fixedly connected by the vertical panel of bolt and support plate 43, the input shaft of the torque sensor 42 and the upper end of coupling spindle 19 are logical
No. 2 shaft couplings 47 are crossed to be fixedly connected.In the inner hole of the lower end insertion simulation workbench 18 of the coupling spindle 19, coupling spindle 19
Lower end offers flat key slot, and torque is passed to coupling spindle 19 by simulation workbench 18 by flat key.When installation, hydraulic pump 21
Axis and torque sensor 42 axis, simulate the axis coaxle of workbench 18, and perpendicular to table on the workbench of workbench 2
Face.There is through-hole on the pedestal of the photoelectric sensor 44, for being fixed on the left of the vertical panel of support plate 43 across bolt
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.
Five, part is automatically controlled
Refering to fig. 1, Fig. 8, the automatic control part include radial controller, axial controller, torque controller and work
Make platform motion control instrument.
The radial direction controller is connect by the port RS232C with industrial personal computer, and radial controller output signal gives radial piezoelectricity
Ceramic actuator 30, while radial pull pressure sensor 28, the acquisition load signal of radial displacement transducer 34 are amplified by signal
Device is uploaded to radial controller, and radial controller output signal controls radial piezoelectric ceramics actuator 30, realizes radial piezoelectricity pottery
The pressure of porcelain actuator 30, displacement closed-loop control.
The axial direction controller is connect by the port RS232C with industrial personal computer, and axial controller output signal gives axial piezoelectricity
Ceramic actuator 35, while axial push-pull force snesor 40, shaft position sensor 45 acquisition load 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, displacement closed-loop control.
The torque controller is connect by the port RS232C with industrial personal 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 acquisition load signals are uploaded to torque controller by signal amplifier, and torque controller output signal controls hydraulic efficiency servo-valve
10, hydraulic efficiency servo-valve 10 controls hydraulic pump 21, realizes the closed-loop control of the revolving speed and torque of hydraulic efficiency servo-valve 10.
The working table movement controller is connect by the port RS232C with industrial personal computer, working table movement controller output letter
Number give workbench 2.
The working 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 load work
Platform 11 makes to simulate the axis of workbench 18, loads the axis of workbench 11 and the rotation conllinear of workbench 2.According to simulation
Workpiece weight installs clump weight 12.Torque loading section is installed, the axial line and workbench 2, simulation work of hydraulic pump 21 are adjusted
Platform 18, the rotation conllinear for loading workbench 11.Axial loading section is installed, the axis of axial piezoelectric ceramics actuator 35 is adjusted
Line is perpendicular to workbench 2.Radial loaded part is installed, adjusts the axis of radial piezoelectric ceramics actuator 30 perpendicular to workbench 2
Axis of rotation, and pass through workbench 2 axis of rotation.Before test, according to the loading spectrum of actual cut process in operation interface
The correlation tests parameters such as dynamic and static cutting force size and torque are set.Various sensors acquisition in test, in testing stand
Corresponding signal, and be sent to processor in time and carry out signal processing, and timely feedback to corresponding executive component, form closed loop control
System, and record corresponding test data.After test, shutoff operation program is simultaneously cut off the power.
Heretofore described embodiment 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, therefore the present invention is not limited to
Implement a kind of this description of more specific technical solution.If relevant 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 variation or various modifications it is all within the scope of the present invention.
Claims (7)
1. a kind of heavy CNC vertical turning machine workbench and its feed mechanism reliability test system, which is characterized in that this is reliable
Property pilot system include clump weight inertia load and load auxiliary device part, radial loaded part, axially loaded part, torque
Loading section and automatic control part；
The radial loaded part is made of the identical radial piezoelectric ceramics loading device (13) of four nested structures, and described four sets
Completely identical in structure radial direction piezoelectric ceramics loading device (13) is evenly arranged on around load workbench (11)；
The radial direction piezoelectric ceramics loading device (13) includes radial loaded platform (26), radial Universal caster (27), radial tension and compression
Force snesor (28), coupling bar (29), radial piezoelectric ceramics actuator (30), radial tightening nut (31), radial locking nut
(32), radial screw rod (33) and radial displacement transducer (34)；The radial direction Universal caster (27), radial pull pressure sensor
(28), coupling bar (29), radial piezoelectric ceramics actuator (30), radial screw rod (33) are successively screwed connection；The radial direction
Screw rod (33) passes through the through-hole of the right wall plate of radial loaded platform (26)；The radial tightening nut (31) is mounted on radial screw rod
(33) on, and it is located at the left side of the right wall plate of radial loaded platform (26), the radial direction locking nut (32) is mounted on radial silk
On bar (33), and it is located at the right side of the right wall plate of radial loaded platform (26)；Radial displacement transducer (34) shell is fixed
In the upper surface of radial loaded platform (26) bottom plate, the axis of radial displacement transducer (34) inner shaft and radial piezoelectric ceramics actuator
(30) axis is parallel, and the inner shaft of radial displacement transducer (34) is stretched out from left end, radial displacement transducer (34) inner shaft left end
It is fixed on coupling bar (29)；
The axially loaded part includes axial piezoelectric ceramics loading device (6)；
The axial direction piezoelectric ceramics loading device (6) includes axially loaded (37), axial Universal caster (41), axial displacement biography
Sensor (45), axial push-pull force snesor (40), axial piezoelectric ceramics actuator (35), axial pretightening nut (36), axial lock
Tight nut (38) and axial screw rod (39)；The axial direction Universal caster (41), axial push-pull force snesor (40), axial piezoelectricity pottery
Porcelain actuator (35), axial screw rod (39) are successively screwed connection；The axial pretightening nut (36) is mounted on axial screw rod
(39) on, and positioned at the following of axially loaded (37) by-level plate, the axial lock nut (38) is mounted on axis
To on screw rod (39), and the top of the by-level plate positioned at axially loaded (37)；The shaft position sensor (45)
Shell be mounted on axially loaded (37), the inner shaft end of shaft position sensor (45) and axial piezoelectric ceramics actuator
(35) lower end is coupled by plate；
The torque loading section includes coupling spindle (19), No. 1 clamping screw (20), torque sensor (42), support plate (43)
With hydraulic pump (21)；The hydraulic pump (21) is fixed on the lower surface of ram (9) by No. 1 clamping screw (20)；The liquid
Press pump (21) passes through the output axis connection of No. 1 shaft coupling (46) and torque sensor (42)；The torque sensor (42) it is defeated
Enter axis to connect by No. 2 shaft couplings (47) with coupling spindle (19)；The coupling spindle (19) passes through flat key and simulation workbench (18)
Inner hole connection；The torque sensor (42) is fixed on support plate (43)；The support plate (43) is fixed on ram (9)
On；
Clump weight inertia load auxiliary device part includes clump weight (12) and load auxiliary device；
The clump weight (12) is fixed in simulation workbench (18)；The load auxiliary device include load workbench (11),
Simulate workbench (18), ring-shaped guide rail pair (22)；The simulation workbench (18) is fixed on workbench (2), and the annular is led
The guide rail of rail pair (22) is fixed on simulation workbench (18), and the sliding block of the ring-shaped guide rail secondary (22) is fixed on load workbench
(11) lower surface；The axis of simulation workbench (18), the axis for the axis and workbench (2) for loading workbench (11) are total
Line；
There is rectangle raised among clump weight (12) lower surface, has rectangular recess among upper surface, be provided among groove
Perpendicular to the through-hole of upper surface, for one or more clump weights to be fixed on simulation workbench (18) across bolt.
2. a kind of heavy CNC vertical turning machine workbench according to claim 1 and its feed mechanism reliability test system
System, which is characterized in that
The automatic control part includes radial controller, axial controller, torque controller and working table movement controller；
The radial direction controller is connect by the port RS232C with industrial personal computer；
The axial direction controller is connect by the port RS232C with industrial personal computer；
The torque controller is connect by the port RS232C with industrial personal computer；
The working table movement controller is connect by the port RS232C with industrial personal computer.
3. a kind of heavy CNC vertical turning machine workbench according to claim 1 and its feed mechanism reliability test system
System, which is characterized in that
The simulation workbench (18) is disk part by performing, and centre is equipped with through-hole, offers keyway in through-hole, passes through flat key and connection
The upper surface outer ring design of spindle (19) connection, simulation workbench (18) has the T-slot for installing clump weight (12), T-slot
Center line pass through simulation workbench (18) axle center, simulation workbench (18) upper surface be provided with for installing ring-shaped guide rail
The annulus card slot of secondary (22) guide rail, is evenly equipped with the threaded hole of the guide rail for stationary annular guideway (22) in annulus card slot；
The load workbench (11) is ring-shape accessory, loads and offers in the axial direction on the external cylindrical surface of workbench (11)
One U-shaped through slot makes to load workbench (11) and is not able to rotate for being inserted into the end of limiter (23), can only be along load work
The axis direction of platform (11) is mobile.
4. a kind of heavy CNC vertical turning machine workbench according to claim 1 and its feed mechanism reliability test system
System, which is characterized in that
The load auxiliary device further includes firm banking (16), No. 3 clamping screws (14) and limiter (23)；
The firm banking (16) is welded to form by sleeve and bottom plate, is welded with reinforcing rib, bottom at sleeve bottom and bottom plate connecting
It is set on plate there are four through-hole, for firm banking (16) to be fixed on ground black iron (17) across bolt, firm banking (16)
Sleeve upper end is provided with a through-hole for fixed limiter (23) across No. 3 clamping screws (14) in radial directions；
The limiter (23) is the L-type structure part being welded by vertical axes, pane and horizon bar, the left end of horizon bar
In U-type groove on the external cylindrical surface of insertion load workbench (11), it is able to rotate load workbench (11) not；The limiter
(23) through-hole vertical with vertical axes axis is evenly arranged on vertical axes axis direction.
5. a kind of heavy CNC vertical turning machine workbench according to claim 1 and its feed mechanism reliability test system
System, which is characterized in that
The torque loading section further includes hydraulic efficiency servo-valve (10) and photoelectric sensor (44)；
The hydraulic efficiency servo-valve (10) is mounted on the side of cylinder block of hydraulic pump (21) by bolt；
There is through-hole on the pedestal of the photoelectric sensor (44), for being fixed on the vertical panel of support plate (43) across bolt
On left side, photoelectric sensor (44) is located between the output shaft and support plate of torque sensor (42), and the torque passes
The reflecting piece of light for reflecting photoelectric sensor (44) is installed on the output shaft of sensor (44).
6. a kind of heavy CNC vertical turning machine workbench according to claim 1 and its feed mechanism reliability test system
System, which is characterized in that
The axially loaded part include linear guide (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 linear guide (1) is bolted on ground black iron (17), and the linear slider (3) is mounted on linear guide
(1) on；Coupled between the gantry (8) and linear slider (3) by No. 2 screws (4)；Described two completely identical in structure 1
Number hydraulic cylinder (7) pedestal is bolted on the crossbeam lower surface at gantry (8), described two completely identical in structure No. 1 liquid
The piston rod end of cylinder pressure (7) is screwed with the upper surface of ram (9) to be coupled, described two completely identical in structure No. 1 liquid
The piston rod axis of cylinder pressure (7) is parallel, and perpendicular to the upper surface of load workbench (11).
7. a kind of heavy CNC vertical turning machine workbench according to claim 1 and its feed mechanism reliability test system
System, which is characterized in that the radial direction piezoelectric ceramics loading device (13) further includes load firm banking (24), No. 1 telescopic rod
(25), No. 2 clamping screws (15)；No. 1 telescopic rod (25) is welded by top plate and two completely identical in structure small axis,
Two completely identical in structure small axis are welded on the middle line of top plate lower surface, and top plate is opened there are four threaded hole, for fixing diameter
To loading bench (26), two small axis of No. 1 telescopic rod (25) are uniformly provided with through-hole along axial direction；
The load firm banking (24) is formed by bottom plate and two completely identical in structure sleeve welds, sleeve and bottom plate connecting
There are four reinforcing rib, the sleeve upper ends of load firm banking (24) to be provided with a through-hole for place's weldering；With bolt also cross load
The through-holes of two small axis of the through-hole and No. 1 telescopic rod (25) of firm banking (24) sleeve upper end and fixation, the load are fixed
The bottom plate of pedestal (24) is opened there are four through-hole, for load firm banking (24) to be fixed on ground black iron (17) across bolt.
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| CN110501174B (en) * | 2019-08-13 | 2021-01-29 | 中国兵器工业标准化研究所 | Exchange workbench reliability test system loaded by piezoelectric stack and hydraulic pressure in mixed mode |
| CN113263439B (en) * | 2021-06-07 | 2022-07-19 | 厦门大学 | Intelligent carrying tool for large-caliber optical elements |
| CN113866042A (en) * | 2021-09-18 | 2021-12-31 | 中钢集团郑州金属制品研究院股份有限公司 | Loading frequency calibration method and device of axial dynamic fatigue testing machine |
| CN114370999A (en) * | 2021-12-29 | 2022-04-19 | 吉林大学 | Device and method for testing reliability of rolling functional part of numerically controlled lathe |
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| DE102013005417A1 (en) * | 2013-03-28 | 2014-10-02 | Robert Bosch Gmbh | Hydraulic unit with closed pressure medium volume and method for increasing the operational safety of the unit |
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