CN108747585A - Machine tool chief axis clamping force on-line monitoring system - Google Patents
Machine tool chief axis clamping force on-line monitoring system Download PDFInfo
- Publication number
- CN108747585A CN108747585A CN201810731330.6A CN201810731330A CN108747585A CN 108747585 A CN108747585 A CN 108747585A CN 201810731330 A CN201810731330 A CN 201810731330A CN 108747585 A CN108747585 A CN 108747585A
- Authority
- CN
- China
- Prior art keywords
- follower lever
- main shaft
- shaft shell
- machine tool
- monitoring system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000009466 transformation Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007937 lozenge Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses a kind of machine tool chief axis clamping force on-line monitoring system, including main shaft shell, pull rod is provided in the main shaft shell, it is characterised in that：Drag link end outside main shaft shell is provided with one group of displacement-reducing mechanism, displacement-reducing mechanism includes primary follower lever, secondary follower lever and the multiple supporting rods being located on primary follower lever and secondary follower lever, the primary follower lever head end is fixed on tie rod end side, end is connected to secondary follower lever by supporting rod, the end of the secondary follower lever is arranged by supporting rod on the upper surface of main shaft shell, there are one curved tabs for setting between the front end and the upper surface of main shaft shell of the secondary follower lever, the side of the curved tabs, which is pasted, is fixed with piezoceramics film, the other side, which is pasted, is fixed with ultra-magnetic telescopic thin slice.The present invention can make lathe during the work time, and the real-time recovery elastic force of the dish-shaped shrapnel in main shaft is improved the reliability of main shaft claming handle of a knife by complete monitoring.
Description
【Technical field】
The present invention relates to the technical fields of machine tool, and system is monitored on-line more particularly to a kind of machine tool chief axis clamping force
System.
【Background technology】
The main shaft claming of vertical machining centre generally has two ways, and one is thrust clamping, another kind is pulling force folder
Tightly, two kinds of clamping modes are slid using the cooperation of lozenges and are clamped to realize, the main axle structure that wherein pulling force clamps is simpler
Single, this helps to stablize spindle mounted precision, ensures processing performance.
There is a pull rod inside pulling force clamped-in style main shaft, tens of layers of dish-shaped shrapnel are disposed with thereon, by dish-shaped shrapnel
Lifting clamping force of the back stretch as handle of a knife Latin.Using the machine tool chief axis of this structure, during constantly use,
The recovery elastic force of dish-shaped shrapnel is on a declining curve, and after the recovery elastic force of dish-shaped shrapnel drops to certain numerical value, main shaft is to knife
The clamping of handle will fail, and there are processing accident potential, and machining accuracy can be caused to decline.
【Invention content】
The purpose of the present invention is exactly to solve the problems of the prior art, proposes a kind of machine tool chief axis clamping force on-line monitoring system
System, can make lathe during the work time, and the real-time recovery elastic force of the dish-shaped shrapnel in main shaft is improved master by complete monitoring
The reliability of axis clamping handle of a knife.
To achieve the above object, the present invention proposes a kind of machine tool chief axis clamping force on-line monitoring system, including outside main shaft
Shell is provided with pull rod in the main shaft shell, and multi-disc disc spring piece is set on the pull rod, and pull rod upper end passes through main shaft shell,
And it is fixedly connected with the output shaft of knife striking cylinder by branch sleeve, it is characterised in that：Drag link end outside main shaft shell is set
Be equipped with one group of displacement-reducing mechanism, displacement-reducing mechanism include primary follower lever, secondary follower lever and be located at it is primary from
Multiple supporting rods in lever and secondary follower lever, the primary follower lever head end are fixed on tie rod end side, and end passes through
Supporting rod is connected to secondary follower lever, and the end of the secondary follower lever is arranged by supporting rod in the upper surface of main shaft shell
On, curved tabs there are one settings between the front end and the upper surface of main shaft shell of the secondary follower lever, the one of the curved tabs
Side, which is pasted, is fixed with piezoceramics film, and the other side, which is pasted, is fixed with ultra-magnetic telescopic thin slice, the curved tabs, Thin Piezoelectric
There are one the eddy current coils with multiturn for suit on the assembly of film and ultra-magnetic telescopic thin slice；The conducting wire two of the eddy current coil
End is connected on a signal amplifier, and the signal amplifier is connected with flow straightener, first filter and controller in turn
Input terminal, extraction electrode line, electrode wires are connected with transformer, voltage stabilizing in turn respectively on two sides of the piezoceramics film
The output end of the input terminal of device, second filter and controller, the controller is connected with solenoid valve, the electromagnetism by conducting wire
Valve is connect with air pump and knife striking cylinder by gas-guide tube respectively.
Preferably, the knife striking cylinder is fixed on main shaft shell upper end by supporting rack.
Preferably, the junction of the primary follower lever of the displacement-reducing mechanism, secondary follower lever and supporting rod is
Flexible hinge structure.
Preferably, the controller is the PMC controllers of FANUC systems.
Preferably, the piezoceramics film and ultra-magnetic telescopic thin slice are all made of epoxy resin and are pasted onto curved tabs
On.
Beneficial effects of the present invention：The present invention passes through the inspection in main shaft shell upper end setting and the motion association of main shaft pull rod
It surveys module to monitor the disc spring piece elastic force on pull rod in real time, herein on the basis of main thinking, creative is made pottery using piezoelectricity
The mode that porcelain film and ultra-magnetic telescopic thin slice are combined is detected, and the acquisition signal of two groups of different principles can be helped mutually
Card prevents appreciable error from being judged by accident to the malice that main shaft is operating normally, ensures the reliability of main shaft work.
The feature and advantage of the present invention will be described in detail by embodiment combination attached drawing.
【Description of the drawings】
Fig. 1 is the structure principle chart of the present invention；
Fig. 2 is the enlarged drawing in the portions A in Fig. 1.
In figure：1- main shaft shells, 2- disc springs piece, 3- pull rods, 4- knife striking cylinders, 5- supporting racks, 6- signal amplifiers, 7- transformations
Device, 8- flow straighteners, 9- voltage-stablizers, 10- first filters, 11- second filters, 12- controllers, 13- solenoid valves, 14- air pumps,
15- primary follower lever, 16- grade follower lever, 17- curved tabs, 18- piezoceramics films, 19- ultra-magnetic telescopics thin slice, the whirlpools 20-
Streamline circle.
【Specific implementation mode】
Refering to fig. 1 and Fig. 2, a kind of machine tool chief axis clamping force on-line monitoring system of the present invention, including main shaft shell 1, it is described
It is provided with pull rod 3 in main shaft shell 1, multi-disc disc spring piece 2 is set on the pull rod 3,3 upper end of pull rod passes through main shaft shell 1, and
It is fixedly connected with the output shaft of knife striking cylinder 4 by branch sleeve, it is characterised in that：3 end of pull rod outside main shaft shell 1 is set
It is equipped with one group of displacement-reducing mechanism, displacement-reducing mechanism includes primary follower lever 15, secondary follower lever 16 and is located at just
Multiple supporting rods on grade follower lever 15 and secondary follower lever 16, primary 15 head end of follower lever are fixed on 3 end side of pull rod
Face, end are connected to secondary follower lever 16 by supporting rod, and the end of the secondary follower lever 16 is arranged by supporting rod in master
On the upper surface of shaft housing 1, there are one bendings for setting between the front end and the upper surface of main shaft shell 1 of the secondary follower lever 16
Piece 17, the side of the curved tabs 17, which is pasted, is fixed with piezoceramics film 18, and it is thin that other side stickup is fixed with ultra-magnetic telescopic
Piece 19, suit is more there are one having on the assembly of the curved tabs 17, piezoceramics film 18 and ultra-magnetic telescopic thin slice 19
The eddy current coil 20 of circle；The conducting wire both ends of the eddy current coil 20 are connected on a signal amplifier 6, the signal amplifier
6 be connected in turn flow straightener 8, first filter 10 and controller 12 input terminal, two sides of the piezoceramics film 18
Extraction electrode line is distinguished on face, electrode wires are connected with the defeated of transformer 7, voltage-stablizer 9, second filter 11 and controller 12 in turn
Enter end, the output end of the controller 12 is connected with solenoid valve 13 by conducting wire, the solenoid valve 13 respectively with air pump 14 and beat
Knife cylinder 4 is connected by gas-guide tube.The knife striking cylinder 4 is fixed on 1 upper end of main shaft shell by supporting rack 5.Machine is reduced in the displacement
The junction of the primary follower lever 15 of structure, secondary follower lever 16 and supporting rod is flexible hinge structure.The controller 12 is
The PMC controllers of FANUC systems.The piezoceramics film 18 and ultra-magnetic telescopic thin slice 19 are all made of epoxy resin and are pasted onto
In curved tabs 17.
The course of work of the present invention：
During the work time, controller 12 is logical to solenoid valve 13 for a kind of machine tool chief axis clamping force on-line monitoring system of the present invention
High potential, solenoid valve 13 are connected, and the high pressure gas in air pump 14 enters the backhaul intracavitary of knife striking cylinder 4, makes the output shaft of knife striking cylinder 4
It shrinking, and then pull rod 3 is made to move up, pull rod 3, which moves up, to be made, and is generated pressure to disc spring piece 2 and is allowed to compress, due to moving up for pull rod 3,
It drives 15 end of primary follower lever to push, and then 16 end of secondary follower lever is driven to push, crooked pressure is generated to curved tabs 17；
Piezoceramics film 18, which is under pressure, generates charge, if knife striking cylinder 4 constantly switches the retracted position of output shaft, makes pottery in piezoelectricity
Continuous voltage can be generated at porcelain film 18, at the same time, the stretching and compression that ultra-magnetic telescopic thin slice 19 is constantly switched, magnetic
Field transformation will make to generate follow current in eddy current coil 20, and two kinds of electric signals enter controller after respective processing circuit
Check comparison is carried out in 12, is judged by setting difference threshold values in controller 12, if the pressure value after the two calculates is inclined
Difference is less than setting threshold values, then judges that signal is effective, and the elastic force validity of disc spring piece 2 is judged according to useful signal, realizes online
Monitoring, if it is determined that disc spring piece 2 fails, then controller 12 makes solenoid valve 13 reset, and blocks the further work of knife striking cylinder 4.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after
Scheme all belong to the scope of protection of the present invention.
Claims (5)
1. a kind of machine tool chief axis clamping force on-line monitoring system, including main shaft shell, it is provided with pull rod in the main shaft shell, institute
It states and is set with multi-disc disc spring piece on pull rod, pull rod upper end passes through main shaft shell, and passes through the output shaft of branch sleeve and knife striking cylinder
It is fixedly connected, it is characterised in that：Drag link end outside main shaft shell is provided with one group of displacement-reducing mechanism, and machine is reduced in displacement
Structure includes primary follower lever, secondary follower lever and the multiple supporting rods being located on primary follower lever and secondary follower lever,
The primary follower lever head end is fixed on tie rod end side, and end is connected to secondary follower lever, the secondary by supporting rod
The end of follower lever is arranged by supporting rod on the upper surface of main shaft shell, the front end of the secondary follower lever and main shaft shell
Upper surface between setting there are one curved tabs, the side of the curved tabs, which is pasted, is fixed with piezoceramics film, and the other side is viscous
Patch is fixed with ultra-magnetic telescopic thin slice, is set on the assembly of the curved tabs, piezoceramics film and ultra-magnetic telescopic thin slice
There are one the eddy current coils with multiturn；The conducting wire both ends of the eddy current coil are connected on a signal amplifier, the letter
Number amplifier is connected with the input terminal of flow straightener, first filter and controller, two sides of the piezoceramics film in turn
Extraction electrode line is distinguished on face, electrode wires are connected with the input terminal of transformer, voltage-stablizer, second filter and controller in turn,
The output end of the controller is connected with solenoid valve by conducting wire, and the solenoid valve passes through gas-guide tube with air pump and knife striking cylinder respectively
Connection.
2. machine tool chief axis clamping force on-line monitoring system as described in claim 1, it is characterised in that：The knife striking cylinder passes through branch
Support is fixed on main shaft shell upper end.
3. machine tool chief axis clamping force on-line monitoring system as described in claim 1, it is characterised in that：The displacement-reducing mechanism
Primary follower lever, secondary follower lever and supporting rod junction be flexible hinge structure.
4. machine tool chief axis clamping force on-line monitoring system as described in claim 1, it is characterised in that：The controller is
The PMC controllers of FANUC systems.
5. machine tool chief axis clamping force on-line monitoring system as described in claim 1, it is characterised in that：The piezoceramics film
Epoxy resin is all made of with ultra-magnetic telescopic thin slice to be pasted onto in curved tabs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810731330.6A CN108747585B (en) | 2018-07-05 | 2018-07-05 | Machine tool spindle clamping force on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810731330.6A CN108747585B (en) | 2018-07-05 | 2018-07-05 | Machine tool spindle clamping force on-line monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108747585A true CN108747585A (en) | 2018-11-06 |
| CN108747585B CN108747585B (en) | 2024-04-16 |
Family
ID=63972246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810731330.6A Active CN108747585B (en) | 2018-07-05 | 2018-07-05 | Machine tool spindle clamping force on-line monitoring system |
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| CN (1) | CN108747585B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113770808A (en) * | 2021-09-10 | 2021-12-10 | 衢州学院 | Multi-source information acquisition device and method for complete machine tool |
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| CN1206865A (en) * | 1998-07-10 | 1999-02-03 | 清华大学 | Creeping type piezoelectric/electrostrictive microfeed positioner |
| US20060128283A1 (en) * | 2004-12-13 | 2006-06-15 | Frank Fiebelkorn | Tool unit for ultrasonically assisted rotary machining |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113770808A (en) * | 2021-09-10 | 2021-12-10 | 衢州学院 | Multi-source information acquisition device and method for complete machine tool |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108747585B (en) | 2024-04-16 |
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