CN109571140A - Vertical machining centre reliability device for fast detecting - Google Patents
Vertical machining centre reliability device for fast detecting Download PDFInfo
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- CN109571140A CN109571140A CN201811326388.9A CN201811326388A CN109571140A CN 109571140 A CN109571140 A CN 109571140A CN 201811326388 A CN201811326388 A CN 201811326388A CN 109571140 A CN109571140 A CN 109571140A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/007—Arrangements for observing, indicating or measuring on machine tools for managing machine functions not concerning the tool
- B23Q17/008—Life management for parts of the machine
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Abstract
The invention discloses a kind of vertical machining centre reliability device for fast detecting, vertical machining centre includes vertical machining centre main shaft, vertical machining centre workbench and vertical machining centre digital control system, wherein, device includes: accuracy detection module, for detecting the kinematic accuracy and spindle rotation accuracy of vertical machining centre；Static and dynamic low-and high-frequency loading module applies the power and torque of different frequency, direction and size, for vertical machining center with simulating cutting central cutting state；Data collection and analysis module obtains the health status of vertical machining centre for acquiring the multinomial machining center status information of vertical machining centre digital control system and vertical machining centre, and according to multinomial machining center status information.The device can be used for quickly detecting machining center reliability, have many advantages, such as that structure is simple, powerful, portable easy to install.
Description
Technical field
The present invention relates to lathe reliability test technical field, in particular to a kind of vertical machining centre reliability is quickly examined
Survey device.
Background technique
Reliability is product under the defined conditions and in the defined time, completes the ability of predetermined function.To numerical control machine
For bed, reliability refers not only to lathe itself being capable of even running, it is often more important that can guarantee to process qualification for a long time
Product, therefore reliability is the important indicator of numerically-controlled machine tool.Cnc ReliabilityintelligeNetwork Network is related to the week in entire service life of numerically-controlled machine tool
Phase uses to lathe from the design of numerically-controlled machine tool, manufacture, assembly, installation, debugging, user and scraps, all reliable with numerically-controlled machine tool
Property technology is closely related.
To improve Cnc ReliabilityintelligeNetwork Network, Cnc ReliabilityintelligeNetwork Network test need to be carried out.Conventional reliability test has Quan Shou
Life test, scene tracking statistical test.But these reliability tests are longer there is the period, slow effect, and required sample size is big, at
The defects of this is high meets user's needs so that enterprise and product be made not to adapt to the fast development in market.Therefore it needs in numerical control
Its reliability is quickly tested before lathe factory, and finds its potential weak spot, and make improvements, improves numerically-controlled machine tool
Reliability.Currently, a part numerically-controlled machine tool production firm, the country has carried out a degree of reliability before numerically-controlled machine tool factory
And accuracy test, but generally relate only to the light cut and dry run test of simple rotary table.Although in rigid factory, numerically-controlled machine tool
Reliability and precision can satisfy factory demand.But user after a period of use, the precision and reliability of numerically-controlled machine tool
It can fail quickly, therefore the reliability of domestic numerical control lathe and precision stability restrict always the promotion of its market share.
Opposite, external some numerically-controlled machine tool manufacturers generally take sampling continuous cutting reliability test.Such as the rugged Mazak in Japanese mountain
Company, by examining lathe reliability to continuous cutting test in 3 months is implemented with a batch of one or several lathes.It should
The consumption of method time and materials is huge, and experimentation cost is very high, and after completing test, which can not also list and carry out pin
It sells.
If a kind of power load maintainer and Precision of NC Machine Tool detection device for simulating actual cut is developed, by applying to lathe
Add the load for being more than actual condition but being no more than numerically-controlled machine tool actual loading ability, simulated machine tool machining state, and adopts simultaneously
The reliability and Precision of NC Machine Tool of numerically-controlled machine tool are quickly tested with accuracy detecting device and acquisition system, and then to numerical control machine
Reliability and the precision holding of bed are assessed, and Cnc ReliabilityintelligeNetwork Network and precision level, such a set of numerically-controlled machine tool are detected
Reliability deceleration detection device will be with boundless application prospect.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, it is an object of the invention to propose a kind of vertical machining centre reliability device for fast detecting, device tool
Have the advantages that structure is simple, powerful, portable easy to install.
In order to achieve the above objectives, one aspect of the present invention embodiment proposes a kind of vertical machining centre reliability and quickly detects
Device, vertical machining centre 1 include vertical machining centre main shaft 2, vertical machining centre workbench 3 and vertical machining centre numerical control
System 4, wherein described device includes: accuracy detection module 5, for detecting kinematic accuracy and the master of the vertical machining centre 1
Axis rotating accuracy；Static and dynamic low-and high-frequency loading module 6, for applying different frequency, direction and big to the vertical machining centre 1
Small power and torque, with simulating cutting central cutting state；Data collection and analysis module 7, for acquiring in the vertical processing
The multinomial machining center status information of heart digital control system 4 and the vertical machining centre 1, and according to the multinomial machining center shape
State information obtains the health status of the vertical machining centre 1.
The vertical machining centre reliability device for fast detecting of the embodiment of the present invention, it is rigid to be able to detect machining center Spindle Static
In the multinomial processing such as degree, dynamic stiffness, static rotating accuracy, dynamic rotation precision, machining center position error, resetting error
Heart status information can be used for quickly detecting machining center reliability, have structure simple, powerful, portable easy to install etc.
Advantage.
In addition, vertical machining centre reliability device for fast detecting according to the above embodiment of the present invention can also have with
Under additional technical characteristic:
Further, in one embodiment of the invention, wherein the accuracy detection module 5 includes test bar 51, the
One displacement sensor 52, second displacement sensor 53, third displacement sensor 54, the displacement of the 4th displacement sensor the 55, the 5th pass
Sensor 56, sensor installation seat 57 and magnetic support 58, wherein first displacement sensor 52, the second displacement sensor 53,
The third displacement sensor 54, the 4th displacement sensor 55 and the 5th displacement sensor 56 are all set in sensor installation
On seat 57, the sensor installation seat 57 is set on the magnetic support 58, and the magnetic support 58 is adsorbed on the vertical machining centre
On workbench 3；The static and dynamic low-and high-frequency loading module 6 includes: that pneumatic type parallel institution and main shaft load connecting interface 61,
In, the pneumatic type parallel institution is set on vertical machining centre workbench 3, and the main shaft load connecting interface 61 is set to
Above pneumatic type parallel institution, main shaft load 61 upper end of connecting interface and vertical machining centre main shaft 2 are connected, main shaft load
61 lower end of connecting interface clamps the test bar 51；The data collection and analysis module 7 includes sensor, capture card, communication board
Card and data analyzer, the sensor are set to each drive shaft and vertical machining centre four of the vertical machining centre 1
Week, the capture card are used for synchronous acquisition sensor signal, and the communication card connects the vertical machining centre digital control system
4, to read the multinomial machining center status information of the vertical machining centre 1, the data analyzer according to described multinomial plus
Work center situation information evaluation and the reliability for monitoring the vertical machining centre 1.
Further, in one embodiment of the invention, the test bar 51 can be standard round column stick, standard
Ball, eccentric standard ball, the double balls of standard or the double balls of eccentric standard.
Further, in one embodiment of the invention, first displacement sensor 52 and the second displacement pass
Sensor 53 is mutually perpendicular to, coplanar and in the horizontal direction；The third displacement sensor 54 and the 4th displacement sensor 55 divide
It is not parallel with first displacement sensor 52 and the second displacement sensor 53, and the third displacement sensor 54 and institute
The 4th displacement sensor 55 is stated to be mutually perpendicular to, is coplanar and in the horizontal direction；5th displacement sensor 56 and first described
Displacement sensor 52, the second displacement sensor 53, the third displacement sensor 54, the 4th displacement sensor 55 hang down
Directly.
Further, in one embodiment of the invention, institute's displacement sensors are directed toward the standard ball, the bias
The centre of sphere of the double balls of standard ball, the standard or the double balls of eccentric standard.
Further, in one embodiment of the invention, the pneumatic type parallel institution includes moving platform 8, first
Chain 9, the second branch 10, third branch 11, the 4th branch 12 and the 5th branch 13, wherein the moving platform 8 is bolted
Main shaft loads connecting interface 61；First branch 9, the second branch 10, third branch 11, the 4th branch 12 and the 5th branch 13
Common connection moving platform 8 and vertical machining centre workbench 3；First branch 9 includes the first Hooke's hinge 91, first connecting rod
92, the first turning joint 93, the first cylinder mounting flange 94, the first cylinder piston rod 95, the first cylinder barrel 96, the first tension and compression
Force snesor 97, first sensor connecting rod 98, the second Hooke's hinge 99 and the first mounting seat 910；The first connecting rod 92
Moving platform 8 is connected by the first Hooke's hinge 91；The first cylinder mounting flange 94 passes through the first turning joint 93 connection first
Connecting rod 92；The first cylinder mounting flange 94 passes through affixed first cylinder piston rod 95 of bolt；First cylinder piston
Bar 95 connects the first cylinder barrel 96 by first movement pair；First pull pressure sensor 97 is fixed in first by bolt
96 lower end of cylinder barrel；The first sensor connecting rod 98 is fixed in 97 lower end of the first pull pressure sensor；Described first passes
Sensor connecting rod 98 connects the first mounting seat 910 by the second Hooke's hinge 99；The third branch 11, the 4th branch 12 and
The structure of one branch 9 is identical with connection type；Second branch 10 includes third Hooke's hinge 101, the second connecting rod 102, the
Two cylinder mounting flanges 103, the second cylinder piston rod 104, the second cylinder barrel 105, the second pull pressure sensor 106, second
Sensor connecting rod 107, the 4th Hooke's hinge 108 and the second mounting seat 109；Second connecting rod 10 passes through third Hooke's hinge
101 connection moving platforms 8；The second cylinder mounting flange 103 passes through affixed second connecting rod 102 of bolt；Second cylinder
Mounting flange 103 and the second cylinder piston rod 104 are affixed by bolt；Second cylinder piston rod 104 is mobile by second
Pair the second cylinder barrel 105 of connection；Second pull pressure sensor 106 is fixed under the second cylinder barrel 105 by bolt
End；The second sensor connecting rod 107 is fixed in 106 lower end of the second pull pressure sensor；The second sensor connecting rod
107 connect the second mounting seat 109 by the 4th Hooke's hinge 108；The structure of 5th branch 13 and second branch 10
It is identical with connection type, and second branch 10 and the 5th branch 13 are in same plane always.
Further, in one embodiment of the invention, the main shaft load connecting interface 61 includes main shaft knife handle
611, bearing upper cover plate 612, upper bearing (metal) 613, bearing block 614, lower bearing 615, bearing lower cover plate 616, retaining ring 617, locking screw
Mother 618, spring collet 619 and knife handle nut 6110；Wherein, the main shaft knife handle 611 is connected to vertical add by hydraulic actuation
On work central principal axis 2, the bearing block 614 connects the main shaft knife handle by the upper bearing (metal) 613 and the lower bearing 615
611, the bearing upper cover plate 612 and bearing lower cover plate 616 are mounted on upper surface and the following table of bearing block 614 by bolt respectively
Face, the retaining ring 617 are mounted on the lower end of lower bearing 615 and are locked by locking nut 618, and the test bar 51 passes through spring
Collet 619 is mounted on 611 lower end of main shaft knife handle, and is locked by knife handle nut 6110；The bearing block 614 passes through bolt and institute
The connection of moving platform 8 is stated, is mounted on the main shaft load connecting interface 61 on pneumatic type parallel institution.
Further, in one embodiment of the invention, the static and dynamic low-and high-frequency loading module 6 detachable described the
Installation on one branch 9, second branch 10, the third branch 11, the 4th branch 12 and the 5th branch 13
Pedestal collapses first branch 9, second branch 10, the third branch 11, the 4th branch 12 and the described 5th
Branch 13, and be mounted in mounting seat 14.
Further, in one embodiment of the invention, first branch 9, second branch 10, the third
Branch 11, the 4th branch 12 are different with the stroke of the cylinder of the 5th branch 13.
Further, in one embodiment of the invention, described device further includes temperature sensor, vibration acceleration biography
Sensor, frequency transmitter and current transformer, to detect the multinomial machining center status information.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the structural representation according to the vertical machining centre reliability device for fast detecting of one embodiment of the invention
Figure；
Fig. 2 is the three dimensional structure diagram according to the embodiment of the accuracy detection module of one embodiment of the invention；
Fig. 3 is the schematic diagram according to the vertical machining centre reliability device for fast detecting of one embodiment of the invention；
Fig. 4 is the first branch and moving platform example structure explosive view according to one embodiment of the invention；
Fig. 5 is the second branch and moving platform example structure explosive view according to one embodiment of the invention；
Fig. 6 is the example structure explosive view that connecting interface is loaded according to the main shaft of one embodiment of the invention；
Fig. 7 is the schematic diagram that receiving state is according to the static and dynamic low-and high-frequency loading module of one embodiment of the invention.
Description of symbols:
Vertical machining centre 1, vertical machining centre main shaft 2, vertical machining centre workbench 3, vertical machining centre numerical control
System 4, accuracy detection module 5, static and dynamic low-and high-frequency loading module 6, data collection and analysis module 7, moving platform 8, the first branch
9, the second branch 10, third branch 11, the 4th branch 12, the 5th branch 13, mounting seat 14, the displacement of test bar 51, first pass
Sensor 52, third displacement sensor 54, the 4th displacement sensor 55, the 5th displacement sensor 56, passes second displacement sensor 53
Sensor mounting base 57, magnetic support 58, main shaft load connecting interface 61, main shaft knife handle 611, bearing upper cover plate 612, upper bearing (metal) 613, axis
Hold seat 614, lower bearing 615, bearing lower cover plate 616, retaining ring 617, locking nut 618, spring collet 619, knife handle nut 6110,
First Hooke's hinge 91, first connecting rod 92, the first turning joint 93, the first cylinder mounting flange 94, the first cylinder piston rod 95,
First cylinder barrel 96, the first pull pressure sensor 97, first sensor connecting rod 98, the second Hooke's hinge 99, first install bottom
Seat 910, third Hooke's hinge 101, the second connecting rod 102, the second cylinder mounting flange 103, the second cylinder piston rod 104, second
Cylinder barrel 105, the second pull pressure sensor 106, second sensor connecting rod 107, the 4th Hooke's hinge 108 and the second installation bottom
Seat 109.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
The vertical machining centre reliability device for fast detecting proposed according to embodiments of the present invention is described with reference to the accompanying drawings.
Fig. 1 is the structural schematic diagram of the vertical machining centre reliability device for fast detecting of one embodiment of the invention.
As shown in Figure 1, the vertical machining centre reliability device for fast detecting, vertical machining centre 1 includes vertical processing
Central principal axis 2, vertical machining centre workbench 3 and vertical machining centre digital control system 4, wherein device includes: accuracy detection mould
Block 5, static and dynamic low-and high-frequency loading module 6 and data collection and analysis module 7.
Wherein, accuracy detection module 5, for detecting the kinematic accuracy and spindle rotation accuracy of vertical machining centre 1；Sound
Power low-and high-frequency loading module 6 applies the power and torque of different frequency, direction and size for vertical machining center 1, with simulation
Machining center cutting state；Data collection and analysis module 7, for acquiring in vertical machining centre digital control system 4 and vertical processing
The multinomial machining center status information of the heart 1, and the healthy shape of vertical machining centre 1 is obtained according to multinomial machining center status information
State.The device of the embodiment of the present invention is able to detect machining center main shaft Static stiffness, dynamic stiffness, static rotating accuracy, dynamic rotation
The multinomial machining center status information such as precision, machining center position error, resetting error, can to machining center reliability into
Row quickly detection, has many advantages, such as that structure is simple, powerful, portable easy to install.
Specifically, vertical machining centre 1 includes vertical machining centre main shaft 2, vertical machining centre workbench 3 and vertical
Machining center digital control system 4.The device of the embodiment of the present invention includes static and dynamic low-and high-frequency loading module 6, data collection and analysis mould
Block 7 and accuracy detection module 5.Static and dynamic low-and high-frequency loading module 6 and accuracy detection module 5 are mounted on vertical machining centre work
On platform 3.Data collection and analysis module 7 connects vertical machining centre digital control system 4.
Accuracy detection module 5 can detect machining center kinematic accuracy and spindle rotation accuracy.Static and dynamic low-and high-frequency loads mould
Block 6 can apply the power and torque of different frequency, direction and size, simulating cutting central cutting state to machining center.Data are adopted
Set analysis module 7 can acquire the status information in digital control system and the temperature sensor in installation in machining center, vibration in real time
The signals such as sensor, and machining center health status is assessed and monitored according to the signal of acquisition.
It is described in detail below in conjunction with the vertical machining center reliability device for fast detecting of specific embodiment.
Further, in one embodiment of the invention, wherein accuracy detection module 5 includes test bar 51, first
Displacement sensor 52, second displacement sensor 53, third displacement sensor 54, the 4th displacement sensor 55, the 5th displacement sensor
56, sensor installation seat 57 and magnetic support 58, wherein the first displacement sensor 52, second displacement sensor 53, third displacement sensing
Device 54, the 4th displacement sensor 55 and the 5th displacement sensor 56 are all set on sensor installation seat 57, sensor installation seat
57 are set on magnetic support 58, and magnetic support 58 is adsorbed on vertical machining centre workbench 3.
Wherein, in one embodiment of the invention, test bar 51 can be standard round column stick, standard ball, eccentric standard
The double balls of ball, standard or the double balls of eccentric standard.
Further, in one embodiment of the invention, 53 phase of the first displacement sensor 52 and second displacement sensor
It is mutually vertical, coplanar and in the horizontal direction；Third displacement sensor 54 and the 4th displacement sensor 55 respectively with the first displacement sensing
Device 52 is parallel with second displacement sensor 53, and third displacement sensor 54 and the 4th displacement sensor 55 are mutually perpendicular to, are coplanar
And in the horizontal direction；5th displacement sensor 56 and the first displacement sensor 52, second displacement sensor 53, third displacement sensing
Device 54, the 4th displacement sensor 55 are vertical.
Further, in one embodiment of the invention, displacement sensor is directed toward standard ball, eccentric standard ball, standard
The centre of sphere of double balls or the double balls of eccentric standard.
Specifically, as shown in Fig. 2, accuracy detection module 5 includes test bar 51, the first displacement sensor 52, second
Displacement sensor 53, third displacement sensor 54, the 4th displacement sensor 55, the 5th displacement sensor 56, sensor installation seat 57
With magnetic support 58.Test bar 51 can be standard cylindrical rod, standard ball, eccentric standard ball, the double balls of standard or the double balls of eccentric standard.The
One displacement sensor 52 and second displacement sensor 53 be mutually perpendicular to, coplanar and in the horizontal direction；54 He of third displacement sensor
4th displacement sensor 55 is parallel with the first displacement sensor 52 and second displacement sensor 53 respectively, and third displacement sensor
54 and the 4th displacement sensor 55 be mutually perpendicular to, be coplanar and in the horizontal direction；5th displacement sensor 56 and the first displacement sensing
Device 52, second displacement sensor 53, third displacement sensor 54, the 4th displacement sensor 55 are vertical.Five displacement sensors are equal
It is mounted on sensor installation seat 57, and is directed toward the centre of sphere of standard ball, eccentric standard ball, the double balls of standard or the double balls of eccentric standard.
Sensor installation seat 57 is mounted on magnetic support 58；Magnetic support 58 is adsorbed on vertical machining centre workbench 3；Accuracy detection module 5
It can be used for detecting vertical machining centre kinematic accuracy, repetitive positioning accuracy and spindle rotation accuracy.
Further, in one embodiment of the invention, static and dynamic low-and high-frequency loading module 6 includes: pneumatic type parallel connection
Mechanism and main shaft load connecting interface 61, wherein pneumatic type parallel institution is set on vertical machining centre workbench 3, main shaft
Load connecting interface 61 is set to above pneumatic type parallel institution, and main shaft loads 61 upper end of connecting interface and vertical machining centre master
Axis 2 connects, and main shaft loads 61 lower end of connecting interface and clamps test bar 51；Data collection and analysis module 7 includes sensor, acquisition
Card, communication card and data analyzer, sensor are set to each drive shaft and vertical machining centre four of vertical machining centre 1
Week, capture card are used for synchronous acquisition sensor signal, and communication card connects vertical machining centre digital control system 4, vertical to read
The multinomial machining center status information of machining center 1, data analyzer are evaluated and are monitored according to multinomial machining center status information
The reliability of vertical machining centre 1.
Further, in one embodiment of the invention, pneumatic type parallel institution include moving platform 8, the first branch 9,
Second branch 10, third branch 11, the 4th branch 12 and the 5th branch 13, wherein main shaft load is bolted in moving platform 8
Connecting interface 61；Connection is dynamic flat jointly for first branch 9, the second branch 10, third branch 11, the 4th branch 12 and the 5th branch 13
Platform 8 and vertical machining centre workbench 3.
Specifically, as shown in Figure 3 comprising static and dynamic low-and high-frequency loading module 6, data collection and analysis module 7 and essence
Spend detection module 5.Static and dynamic low-and high-frequency loading module 6 is mounted on vertical machining centre workbench 3, including pneumatic type parallel machine
Structure and main shaft load connecting interface 61.Pneumatic type parallel institution includes moving platform 8, the first branch 9, the second branch 10, third branch
Chain 11, the 4th branch 12 and the 5th branch 13.Main shaft load connecting interface 61 is bolted in moving platform 8.First branch 9,
Second branch 10, third branch 11, the 4th branch 12 and the 5th branch 13 are separately connected moving platform 8 and vertical machining centre work
Platform 3.
As shown in figure 4, the first branch 9 includes the first Hooke's hinge 91, first connecting rod 92, the first turning joint 93, first
Cylinder mounting flange 94, the first cylinder piston rod 95, the first cylinder barrel 96, the first pull pressure sensor 97, first sensor
Connecting rod 98, the second Hooke's hinge 99 and the first mounting seat 910；First connecting rod 92 connects moving platform by the first Hooke's hinge 91
8；First cylinder mounting flange 94 connects first connecting rod 92 by the first turning joint 93；First cylinder mounting flange 94 passes through
Affixed first cylinder piston rod 95 of bolt；First cylinder piston rod 95 connects the first cylinder barrel 96 by first movement pair；The
One pull pressure sensor 97 is fixed in 96 lower end of the first cylinder barrel by bolt；First sensor connecting rod 98 is fixed in first
97 lower end of pull pressure sensor；First sensor connecting rod 88 connects the first mounting seat 910 by the second Hooke's hinge 99；Third
Branch 11, the 4th branch 12 are identical with connection type with the structure of the first branch 9.
As shown in figure 5, the second branch 10 includes third Hooke's hinge 101, the second connecting rod 102, the second cylinder mounting flange
103, the second cylinder piston rod 104, the second cylinder barrel 105, the second pull pressure sensor 106, second sensor connecting rod
107, the 4th Hooke's hinge 108 and the second mounting seat 109；Second connecting rod 10 connects moving platform 8 by third Hooke's hinge 101；
Second cylinder mounting flange 103 passes through affixed second connecting rod 102 of bolt；Second cylinder mounting flange 103 and the second cylinder are living
Stopper rod 104 is affixed by bolt；Second cylinder piston rod 104 connects the second cylinder barrel 105 by the second prismatic pair；Second draws
Pressure sensor 106 is fixed in 105 lower end of the second cylinder barrel by bolt；Second sensor connecting rod 107 is fixed in second
106 lower end of pull pressure sensor；Second sensor connecting rod 107 connects the second mounting seat 109 by the 4th Hooke's hinge 108；
5th branch 13 is identical with connection type with the structure of the second branch 10, and the second branch 10 and the 5th branch 13 are always in same
In one plane.
Further, as shown in fig. 6, main shaft load connecting interface 61 is mounted on the moving platform 8 of pneumatic type parallel institution,
Main shaft loads 61 upper end of connecting interface and vertical machining centre main shaft 2 connects, and main shaft loads 61 lower end connection precision of connecting interface
Detection module 5.It includes main shaft knife handle 611, bearing upper cover plate 612, upper bearing (metal) 613, bearing block that main shaft, which loads connecting interface 61,
614, lower bearing 615, bearing lower cover plate 616, retaining ring 617, locking nut 618, spring collet 619 and knife handle nut 6110；Its
In, main shaft knife handle 611 is connected in vertical machining centre main shaft 2 by hydraulic actuation, and bearing block 614 passes through 613 He of upper bearing (metal)
Lower bearing 615 connects main shaft knife handle 611, and bearing upper cover plate 612 and bearing lower cover plate 616 are mounted on bearing block by bolt respectively
614 upper and lower surfaces, retaining ring 617 are mounted on the lower end of lower bearing 615 and are locked by locking nut 618, test bar
51 are mounted on 611 lower end of main shaft knife handle by spring collet 619, and are locked by knife handle nut 6110；Bearing block 614 passes through spiral shell
Bolt and moving platform 8 connect, and are mounted on main shaft load connecting interface 61 on pneumatic type parallel institution.
Further, in one embodiment of the invention, the first branch 9, the second branch 10, third branch the 11, the 4th
Branch 12 is different with the stroke of the cylinder of the 5th branch 13.
It is understood that the first branch 9, the second branch 10, third branch 11, the 4th branch 12 and the 5th branch 13
Cylinder is replaced by the cylinder of different trips, so that changing mechanism meets the different sizes such as medium-sized to small-sized, medium-sized, large-scale processing
The detection of 1 reliability of vertical machining centre.
Further, in one embodiment of the invention, as shown in fig. 7, static and dynamic low-and high-frequency loading module 6 is detachable
Mounting seat on first branch 9, the second branch 10, third branch 11, the 4th branch 12 and the 5th branch 13 collapses first
Chain 9, the second branch 10, third branch 11, the 4th branch 12 and the 5th branch 13, and be mounted in mounting seat 14.Bottom is installed
Seat 14 can be small-sized integrated mounting seat, to reduce volume storage.
Further, in one embodiment of the invention, device further includes temperature sensor, vibration acceleration sensing
Device, frequency transmitter and current transformer, to detect multinomial machining center status information.
Specifically, data collection and analysis module 7 includes sensor, capture card, communication card and data analyzer, sensing
Device includes temperature sensor, vibration acceleration sensor, frequency transmitter, current transformer, and is mounted on vertical machining centre 1
1 surrounding of each drive shaft and vertical machining centre, capture card high speed synchronous sample sensor signal.Communication card connection is vertical
Machining center digital control system 4, and from vertical machining centre digital control system 4 read vertical machining centre 1 status information, including
The performance indicator of the multinomial vertical machining centres such as tracking error, main shaft load factor, each axle load rate, motor temperature.Data analysis
Instrument is evaluated according to sensor signal and machining center status information and monitoring machining center reliability.
At work, data collection and analysis module 7 acquires the five pull pressure sensor data installed on five branches, leads to
The air pressure for overregulating five cylinders on five branches, is adjusted the pressure of five branches, and then vertical to being applied to
Loading force on machining center main shaft 2 is accurately controlled.Meanwhile being controlled by the vertical machining center of G code, when vertical
When formula machining center 1 is moved, by driving the movement of pneumatic type parallel institution, realize vertical machining center in different location
Numerically-controlled machine tool is simulated to carry out multidimensional load to the vertical machining centre main shaft 2 of connection moving platform 8 with loading force under posture
Cutting.Meanwhile data collection and analysis module acquisition sensor signal and machining center status information, vertical machining center carry out
State-detection and reliability evaluation.
To sum up, the device of the embodiment of the present invention is suitable for the quick testing experiment of reliability of vertical machining centre.The device
Can vertical machining center apply the power in three directions and the torque in two directions, simulate actual machine cut state.It is opposing
It, can be with the rotating accuracy, repetitive positioning accuracy, positioning accurate of vertical machining center while formula machining center applies load
A series of state of machining centers such as degree, tracking error, motor temperature, each axle load is monitored, and Real-time Feedback it is vertical plus
The health status at work center, the final reliability for assessing machining center and precision stability are horizontal.
The device of the embodiment of the present invention has the advantage that
(1) device of the embodiment of the present invention can the different sizes such as vertical three axis machining center, upright type five-shaft machining center
Vertical machining centre apply three direction force and two yawning moments, simulate numerically-controlled machine tool actual cut state.
(2) cylinder in the replaceable mechanical structure of the device of the embodiment of the present invention is the cylinder of different trips, so as to change machine
Structure meets the vertical machining centre reliability detection of the different sizes such as medium-sized to small-sized, medium-sized, large-scale processing.
(3) while the device of the embodiment of the present invention can realize simulation numerical control machine tool cutting, to the revolution essence of numerically-controlled machine tool
Degree, repetitive positioning accuracy and positioning accuracy are detected.
(4) while the device of the embodiment of the present invention can be realized to numerically-controlled machine tool detection, to the tracking error of numerically-controlled machine tool,
The multinomial numerically-controlled machine tool performance indicators such as main shaft load factor, each axle load rate, motor temperature are monitored, can Real-time Feedback it is vertical plus
The health status at work center, the final reliability for assessing machining center and precision stability are horizontal.
(5) apparatus structure of the embodiment of the present invention is simple, easily fabricated, low in cost, is easily mounted on different size
Reliability detection is carried out on numerically-controlled machine tool.
(6) device of the embodiment of the present invention can reduce volume by being mounted in small-sized integrated mounting seat convenient for taking
Band and storage.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of vertical machining centre reliability device for fast detecting, which is characterized in that vertical machining centre (1) includes vertical adds
Work central principal axis (2), vertical machining centre workbench (3) and vertical machining centre digital control system (4), wherein described device packet
It includes:
Accuracy detection module (5), for detecting the kinematic accuracy and spindle rotation accuracy of the vertical machining centre (1)；
Static and dynamic low-and high-frequency loading module (6), for applying different frequency, direction and size to the vertical machining centre (1)
Power and torque, with simulating cutting central cutting state；And
Data collection and analysis module (7), for acquiring the vertical machining centre digital control system (4) and the vertical machining centre
(1) multinomial machining center status information, and the vertical machining centre is obtained according to the multinomial machining center status information
(1) health status.
2. vertical machining centre reliability device for fast detecting according to claim 1, which is characterized in that wherein,
The accuracy detection module (5) include test bar (51), the first displacement sensor (52), second displacement sensor (53),
Third displacement sensor (54), the 4th displacement sensor (55), the 5th displacement sensor (56), sensor installation seat (57) and magnetic
Seat (58), wherein first displacement sensor (52), the second displacement sensor (53), the third displacement sensor
(54), the 4th displacement sensor (55) and the 5th displacement sensor (56) are all set on sensor installation seat (57), institute
It states sensor installation seat (57) to be set on the magnetic support (58), the magnetic support (58) is adsorbed on the vertical machining centre work
On platform (3)；
The static and dynamic low-and high-frequency loading module (6) includes: that pneumatic type parallel institution and main shaft load connecting interface (61),
In, the pneumatic type parallel institution is set on vertical machining centre workbench (3), and main shaft load connecting interface (61) sets
It is placed in above pneumatic type parallel institution, main shaft load connecting interface (61) upper end and vertical machining centre main shaft (2) connection,
Main shaft loads connecting interface (61) lower end and clamps the test bar (51)；
The data collection and analysis module (7) includes sensor, capture card, communication card and data analyzer, the sensor
It is set to each drive shaft and vertical machining centre surrounding of the vertical machining centre (1), the capture card is adopted for synchronizing
Collect sensor signal, the communication card connects the vertical machining centre digital control system (4), to read in the vertical processing
The multinomial machining center status information of the heart (1), the data analyzer according to the multinomial machining center status information evaluation and
Monitor the reliability of the vertical machining centre (1).
3. vertical machining centre reliability device for fast detecting according to claim 2, which is characterized in that the detection
Stick (51) is standard cylindrical rod, standard ball, eccentric standard ball, the double balls of standard or the double balls of eccentric standard.
4. vertical machining centre reliability device for fast detecting according to claim 2, which is characterized in that described first
Displacement sensor (52) and the second displacement sensor (53) be mutually perpendicular to, coplanar and in the horizontal direction；The third displacement passes
Sensor (54) and the 4th displacement sensor (55) pass with first displacement sensor (52) and the second displacement respectively
Sensor (53) in parallel, and the third displacement sensor (54) and the 4th displacement sensor (55) be mutually perpendicular to, it is coplanar and
In the horizontal direction；5th displacement sensor (56) and first displacement sensor (52), the second displacement sensor
(53), the third displacement sensor (54), the 4th displacement sensor (55) are vertical.
5. vertical machining centre reliability device for fast detecting according to claim 4, which is characterized in that the displacement passes
Sensor is directed toward the centre of sphere of the standard ball, the eccentric standard ball, the double balls of the standard or the double balls of eccentric standard.
6. vertical machining centre reliability device for fast detecting according to claim 2, which is characterized in that the pneumatic type
Parallel institution includes moving platform (8), the first branch (9), the second branch (10), third branch (11), the 4th branch (12) and
Five branches (13), wherein
Main shaft load connecting interface (61) is bolted in the moving platform (8)；First branch (9), the second branch
(10), third branch (11), the 4th branch (12) and the 5th branch (13) connect moving platform (8) and vertical machining centre work jointly
Make platform (3)；First branch (9) includes the first Hooke's hinge (91), first connecting rod (92), the first turning joint (93), the
One cylinder mounting flange (94), the first cylinder piston rod (95), the first cylinder barrel (96), the first pull pressure sensor (97),
First sensor connecting rod (98), the second Hooke's hinge (99) and the first mounting seat (910)；The first connecting rod (92) passes through
First Hooke's hinge (91) connects moving platform (8)；The first cylinder mounting flange (94) is connected by the first turning joint (93)
First connecting rod (92)；The first cylinder mounting flange (94) passes through affixed first cylinder piston rod (95) of bolt；Described
One cylinder piston rod (95) passes through first movement pair connection the first cylinder barrel (96)；First pull pressure sensor (97) is logical
It crosses bolt and is fixed in the first cylinder barrel (96) lower end；The first sensor connecting rod (98) is fixed in the first pressure sensing
Device (97) lower end；The first sensor connecting rod (98) passes through the second Hooke's hinge (99) connection the first mounting seat (910)；Institute
It is identical with connection type with the structure of the first branch (9) to state third branch (11), the 4th branch (12)；Second branch (10)
Including third Hooke's hinge (101), the second connecting rod (102), the second cylinder mounting flange (103), the second cylinder piston rod
(104), the second cylinder barrel (105), the second pull pressure sensor (106), second sensor connecting rod (107), the 4th Hooke
Cut with scissors (108) and the second mounting seat (109)；Second connecting rod (10) connects moving platform by third Hooke's hinge (101)
(8)；The second cylinder mounting flange (103) passes through affixed second connecting rod (102) of bolt；The second cylinder mounting flange
(103) and the second cylinder piston rod (104) is affixed by bolt；Second cylinder piston rod (104) passes through the second prismatic pair
Connect the second cylinder barrel (105)；Second pull pressure sensor (106) is fixed in the second cylinder barrel by bolt
(105) lower end；The second sensor connecting rod (107) is fixed in the second pull pressure sensor (106) lower end；Described second passes
Sensor connecting rod (107) passes through the 4th Hooke's hinge (108) connection the second mounting seat (109)；5th branch (13) and institute
The structure for stating the second branch (10) is identical with connection type, and second branch (10) and the 5th branch (13) are located always
In in same plane.
7. vertical machining centre reliability device for fast detecting according to claim 2, which is characterized in that the main shaft adds
Carrying connecting interface (61) includes main shaft knife handle (611), bearing upper cover plate (612), upper bearing (metal) (613), bearing block (614), lower axle
Hold (615), bearing lower cover plate (616), retaining ring (617), locking nut (618), spring collet (619) and knife handle nut
(6110)；
Wherein, the main shaft knife handle (611) is connected on vertical machining centre main shaft (2) by hydraulic actuation, the bearing block
(614) main shaft knife handle (611), the bearing upper cover plate are connected by the upper bearing (metal) (613) and the lower bearing (615)
(612) and bearing lower cover plate (616) is mounted on the upper and lower surfaces of bearing block (614), the retaining ring by bolt respectively
(617) it is mounted on the lower end of lower bearing (615) and is locked by locking nut (618), the test bar (51) passes through spring clip
Set (619) is mounted on main shaft knife handle (611) lower end, and is locked by knife handle nut (6110)；The bearing block (614) passes through spiral shell
Bolt and the moving platform (8) connection, are mounted on main shaft load connecting interface (61) on pneumatic type parallel institution.
8. vertical machining centre reliability device for fast detecting according to claim 6, which is characterized in that the static and dynamic
It is detachable first branch (9) of low-and high-frequency loading module (6), second branch (10), the third branch (11), described
Mounting seat on 4th branch (12) and the 5th branch (13) collapses first branch (9), second branch
(10), the third branch (11), the 4th branch (12) and the 5th branch (13), and it is mounted on mounting seat (14)
On.
9. vertical machining centre reliability device for fast detecting according to claim 8, which is characterized in that described first
Chain (9), second branch (10), the third branch (11), the 4th branch (12) and the 5th branch (13)
The stroke of cylinder is different.
10. vertical machining centre reliability device for fast detecting according to claim 8, which is characterized in that described device
It further include temperature sensor, vibration acceleration sensor, frequency transmitter and current transformer, to detect in the multinomial processing
Heart status information.
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|---|---|---|---|
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| CN111044242A (en) * | 2019-12-30 | 2020-04-21 | 哈尔滨工业大学 | Rigidity detection device and detection method for main shaft and guide rail of ultra-precise fly-cutting machine tool |
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