CN110181327A - A kind of fast tool servo device with dynamic force balanced function - Google Patents
A kind of fast tool servo device with dynamic force balanced function Download PDFInfo
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- CN110181327A CN110181327A CN201910555039.2A CN201910555039A CN110181327A CN 110181327 A CN110181327 A CN 110181327A CN 201910555039 A CN201910555039 A CN 201910555039A CN 110181327 A CN110181327 A CN 110181327A
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- China
- Prior art keywords
- dynamic force
- servo device
- fast tool
- tool servo
- fixed
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Classifications
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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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
- B23Q11/0035—Arrangements for preventing or isolating vibrations in parts of the machine by adding or adjusting a mass, e.g. counterweights
Abstract
The present invention relates to a kind of fast tool servo devices with dynamic force balanced function, including the pedestal being set on lathe, the electric machine assembly being set on pedestal, the first guide assembly being arranged on electric machine assembly and the cutter being arranged on the first guide assembly, connector is fixed on the pedestal, the electric machine assembly is fixed on the side of connector, and the balanced component that dynamic force is generated for balance motor component movement is provided in the other side of the connector.The present invention realizes the balance for the dynamic force that motion parts generate in working condition in fast tool servo device, can effectively improve the machining accuracy of optics non-rotational symmetric curved surface；The balanced component structure of dynamic force is simple simultaneously, it is easy for installation, design space has greatly been saved, has kept the fast tool servo device volume that joined dynamic force balanced component more compact, to reduce assembly difficulty of the fast tool servo device in the lathe confined space, improve efficiency.
Description
Technical field
The invention belongs to the technical fields such as ultra-precise cutting and optical precision component turnery processing, are related to a kind of with dynamic
The fast tool servo device of state balancing function.
Background technique
Optics non-rotational symmetric curved surface refers to the freeform optics surface of no rotationally symmetrical axis, has symmetrical optics with tradition
Element is compared, and complicated free form surface is combined into optical system by optics non-rotational symmetric curved surface elements, not only can very big journey
The negative effect in light transmittance process, such as astigmatism, distortion and coma are eliminated on degree, moreover it is possible to the effective loss for reducing luminous energy.
Brilliant optical property is widely used it in aviation exploration, aerospace and national defence, in industrial circle
It is widely used, such as the fields such as automobile manufacture, opticianry eyeglass, digital camera.In order to keep optics non-rotational symmetric bent
Face element part realizes efficient mass production under the premise of guaranteeing high-precision, the ultraprecise Buddha's warrior attendant based on fast tool servo
Stone turnery processing is acknowledged as most suitably used processing method.
For fluctuating the processing of big free form surface, the sharp knife based on piezoelectric ceramics and compliant mechanism being primarily present at present
Servomechanism installation is not able to satisfy its processing request because of the feature that its servo stroke is small.So being based on voice coil motor and air-bearing
Big stroke, high frequency sound, the fast tool servo device contributed greatly comes into being.But it is being based on voice coil motor and air-bearing sharp knife
In servomechanism installation, the quality of motion parts has very big mention with the fast tool servo device based on piezoelectric ceramics and compliant mechanism
Height, so it is caused to generate the dynamic force for being difficult to ignore during the work time.Dynamic force can travel on machine body to produce
Raw additional vibration, the freeform optics surface element high to required precision is for, and the additional vibratory of generation is to can generate can not
The influence ignored.
Based on above-mentioned defect, Improvement is carried out for existing design defect, one kind is novel to be had to found
The fast tool servo device of dynamic force balanced function makes its industry application value get a promotion
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of fast tool servo device with dynamic force balanced function, it
Dynamic force can be offset and travel to the vibration generated on machine body.
The technical scheme adopted by the invention to solve the technical problem is that: a kind of sharp knife with dynamic force balanced function is watched
Clothes are set, including the pedestal being set on lathe, the electric machine assembly being set on pedestal, first leading of being arranged on electric machine assembly
Rail assembly and the cutter being arranged on the first guide assembly are fixed with connector, the motor group on the pedestal
Part is fixed on the side of connector, is provided in the other side of the connector and generates dynamic for balance motor component movement
The balanced component of power.
Further specifically, the balanced component includes the mechanical amplification Piezoelectric Ceramic being arranged on connector
Device, the second guide assembly being set on the base, be connected to mechanical amplification piezoelectric ceramic actuator and the second guide assembly it
Between connecting plate and the clump weight that is arranged on connecting plate.
Further specifically, the connecting plate includes the level board being fixed on the second guide assembly, is fixed on machinery
The reinforcing rib that formula is amplified the vertical plate on piezoelectric ceramic actuator and is arranged between level board and vertical plate.
Further specifically, second guide assembly includes the guide rail being fixed on pedestal and is set on guide rail
Sliding block, the connecting plate is fixed on sliding block.
Further specifically, first guide assembly is air-float guide rail.
Further specifically, the air-float guide rail includes that the air bearing orbit determination being fixed on the base and setting are fixed in air bearing
Air bearing dynamic rail on rail, offers through-hole on the air bearing orbit determination, and the air bearing dynamic rail is inserted into through-hole；Described
The appearance of air bearing orbit determination is inward-facing to offer throttle orifice, and the throttle orifice is connected to through-hole.
Further specifically, the throttle orifice has several and is evenly distributed on air bearing orbit determination.
Further specifically, the throttle orifice shares 5 rows and is evenly distributed on air bearing orbit determination, throttling described in every row
Hole has 3.
Further specifically, the electric machine assembly includes voice coil motor and the connection that voice coil motor head is arranged in
Block, the air bearing dynamic rail are fixed on link block.
It is described further specifically, the voice coil motor includes stator and the mover coil that stator interior is arranged in
Stator pass through the clamping bench that is set on the base and fix, the stator is fixed with connector.
It is generated in working condition the beneficial effects of the present invention are: the present invention realizes motion parts in fast tool servo device
Dynamic force balance, can effectively improve the machining accuracy of optics non-rotational symmetric curved surface；The balance group of dynamic force simultaneously
Part structure is simple, easy for installation, has greatly saved design space, makes the fast tool servo device that joined dynamic force balanced component
Volume is more compact, to reduce assembly difficulty of the fast tool servo device in the lathe confined space, improves efficiency.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the schematic cross-sectional view of Fig. 1.
In figure: 1, pedestal；2, connector；3, electric machine assembly；4, the first guide assembly；5, balanced component；31, stator；32,
Rotor coil；33, link block；34, clamping bench；41, air bearing orbit determination；42, air bearing dynamic rail；43, throttle orifice；44, gas distribution channels；
51, mechanically amplify piezoelectric ceramic actuator；52, guide rail；53, sliding block；54, clump weight；55, vertical plate；56, level board；57,
Reinforcing rib.
Specific embodiment
The present invention is explained in detail with reference to the accompanying drawing.
A kind of fast tool servo device with dynamic force balanced function as shown in Figures 1 and 2, including being set on lathe
Pedestal 1, the electric machine assembly 3 being set on pedestal 1, the first guide assembly 4 being arranged on electric machine assembly 3 and setting are first
Cutter on guide assembly 4, is fixed with connector 2 on the pedestal 1, and the electric machine assembly 3 is fixed on connector 2
Side is provided in the other side of the connector 2 and moves the balanced component 5 for generating dynamic force for balance motor component 3.
Electric machine assembly 3 moves so that the cutter on the first guide assembly 4 is moved, and processing of the cutter to workpiece is realized, due to motor
The dynamic force that the movement of component 3 generates is balanced dynamic force by the way that balanced component 5 is arranged in the other side of connector 2, real
Now stable output.
Balanced component 5 includes mechanical amplification piezoelectric ceramic actuator 51, the second guide assembly, connecting plate and clump weight
54, the mechanical piezoelectric ceramic actuator 51 that amplifies is fixed by screws on connector 2, for receiving the dynamic force for being transmitted through and,
Second guide assembly is made of the guide rail 52 that is fixed on pedestal 1 and the sliding block 53 being arranged on guide rail 52, and sliding block 53 can be
Free to slide on guide rail 52, the direction that guide rail 52 is arranged is that the direction of generation dynamic force is i.e. consistent with the direction of motion of cutter, even
Fishplate bar is for connecting mechanical amplification piezoelectric ceramic actuator 51 and sliding block 53, and connecting plate is by a level board 56 and vertical plate
55 compositions, and be connected and fixed between level board 56 and vertical plate 55 by reinforcing rib 57, reinforcing rib 57 is triangular in shape, reinforcing rib
57 can according to need be designed as it is multiple, and need in the present case the middle part of level board 56 by screw install clump weight 54,
So reinforcing rib 57 is set as 2, it is located at the two sides of connecting plate；The purpose of reinforcing rib 57 is to prevent from mechanically amplifying piezoelectricity
Faint deformation is generated during the driving of ceramic driver 51, influences to be driven effect.
First guide assembly 4 is air-float guide rail, dynamic including air bearing orbit determination 41 and the air bearing being arranged on air bearing orbit determination 41
Rail 42；It is in half arc at the top of air bearing orbit determination 41, bottom is fixed on pedestal 1, and a through-hole is opened up on air bearing orbit determination 41, this is logical
Hole is rounded and extends to other end, while 41 top of the axis of the through-hole and air bearing orbit determination from an end face of air bearing orbit determination 41
The axis of half arc is identical；Air bearing dynamic rail 42 is rounded and is inserted into through-hole, between being between air bearing dynamic rail 42 and air bearing orbit determination 41
Gap cooperation guarantees that air bearing dynamic rail 42 can in axial direction move in through-hole, and cutter is fixed in air bearing dynamic rail 42；It is fixed in air bearing
The appearance of rail 41 is inward-facing to offer throttle orifice 43, and throttle orifice 43 is connected to through-hole, and connector is installed on throttle orifice 43, connection
Tracheae is connected on head；At work, high pressure gas is sprayed into throttle orifice 43 by tracheae, high pressure gas passes through throttle orifice
43 enter in through-hole, since, there are gap, high pressure gas enters gap back wall around gas between air bearing orbit determination 41 and air bearing dynamic rail 42
42 surrounding of floating rail forms one layer of air film, so that without directly contacting between air bearing orbit determination 41 and air bearing dynamic rail 42, when sliding rubs
Power guarantees that air bearing dynamic rail 42 has smooth sliding effect close to zero, while also ensuring that fast tool servo device can do essence
Close straight reciprocating motion.The number of throttle orifice 43 is multiple and is evenly distributed on the outer surface of air bearing orbit determination 42, main mesh
Be make gas film behavior and stablize it is lasting keep, realize the stationarity that air bearing dynamic rail 42 moves；In the present case, in air bearing orbit determination 41
Outer surface on 5 cribbing discharge orifices 43 are set, every row has 3 throttle orifices 43, and the axle center of throttle orifice 43 is located at the radial direction of through-hole
On direction, meanwhile, gas distribution channels 44 are horizontally arranged in 41 bottom of air bearing orbit determination, are set up perpendicular to gas distribution channels 44 several
Gas distribution channels 44 are connected to by throttle orifice 43, throttle orifice 43 with through-hole, and the axis setting through-hole of throttle orifice 43 in the radial direction, passes through
Gas distribution channels 44 and throttle orifice 43 realize that high pressure gas enters from via bottoms.The form of above-mentioned throttle orifice 43 includes of different sizes
Throttle orifice, ring restrictor, slit throttling, porous restriction, capillary-compensated etc., can there is one kind to be also possible to a variety of combinations
Mode carry out.
Electric machine assembly 3 includes voice coil motor and the link block 33 that voice coil motor head is arranged in, and air bearing dynamic rail 42 is fixed
On link block 33；Voice coil motor includes stator 31 and the mover coil being arranged in inside stator 31 32, the stator 31
Fixed by the clamping bench 34 being arranged on pedestal 1, the stator 31 and connector 2 is fixed；The form of clamping bench 34 has more
Kind, it can be fixed, can also be fixed by left and right semi-circular features by upper and lower semi-circular features；In the present case, it uses
The mode of left and right semi-circular features is fixed, and left semicircle component and right semi-circle feature bottom are fixed on pedestal 1, voice coil motor
The setting of stator 31 fixes left semicircle component and right semi-circle component between left semicircle component and right semi-circle component, and through screw
The stator 31 of voice coil motor is held in connection tightly；The direction of motion and voice coil motor mover line of mechanical amplification piezoelectric ceramic actuator 51
The direction of motion coaxial arrangement of circle 32, air bearing dynamic rail 42, for eliminating error torque.
The dynamic force generated in the operating condition is F=mA ω2Sin ω t, wherein F is dynamic force, and A is maximum functional row
Journey, m are motion parts quality, and ω is angular speed, and t is the time.Assuming that motion parts quality be m=1kg, angular velocity omega=
140rad/s, maximum functional stroke A=5mm, thus can be calculated, dynamic force F=98N, frequency 22.28Hz.
The dynamic force generated in the operating condition by the way that fast tool servo device is calculated, then by adjusting clump weight 54
Weight keeps the quality of motion parts in the balanced component 5 of dynamic force equal with the quality of motion parts in fast tool servo system, after
And counterweight part is driven to do on the second guide assembly and fast tool servo by the mechanical amplification piezoelectric ceramic actuator 51 of control
The synchronization of device part but contrary reciprocating linear motion generate and the big but contrary dynamics such as fast tool servo device
Power, to achieve the purpose that eliminate the dynamic force that fast tool servo device generates.
To promote the movement travel in dynamic force balanced system, this case selects mechanical amplification piezoelectric ceramic actuator 51 to make
For driving element, although Common piezoelectricity ceramic driver has many advantages, such as high frequency sound, high position precision, its deflection is very
It is small, 1 ‰ generally are, so that it cannot the characteristics of meeting the big stroke of the fast tool servo device based on voice coil motor.Mechanically
Lever displacement equations principle is utilized in amplification piezoelectric ceramic actuator 51, realizes displacement equations, to meet based on voice coil electricity
The movement for doing the big stroke of high frequency of the fast tool servo device of machine.
To sum up, the present invention realizes the flat of the dynamic force that motion parts generate in working condition in fast tool servo device
Weighing apparatus, can effectively improve the machining accuracy of optics non-rotational symmetric curved surface；5 structure of balanced component of dynamic force is simple simultaneously,
It is easy for installation, design space has greatly been saved, has stepped up the fast tool servo device volume that joined dynamic force balanced component 5 more
It gathers, to reduce assembly difficulty of the fast tool servo device in the lathe confined space, improves efficiency.
It is emphasized that: the above is only presently preferred embodiments of the present invention, not make in any form to the present invention
Limitation, any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention,
All of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of fast tool servo device with dynamic force balanced function, including be set on lathe pedestal (1), be set to bottom
The first guide assembly (4) and setting of electric machine assembly (3), setting on electric machine assembly (3) on seat (1) is in the first guide rail group
Cutter on part (4), which is characterized in that be fixed with connector (2) on the pedestal (1), the electric machine assembly (3) is solid
It is scheduled on the side of connector (2), is provided in the other side of the connector (2) and moves production for balance motor component (4)
The balanced component (5) of raw dynamic force.
2. the fast tool servo device according to claim 1 with dynamic force balanced function, which is characterized in that described is flat
Weighing apparatus component (5) includes the mechanical amplification piezoelectric ceramic actuator (51) being arranged on connector (2), is arranged on pedestal (1)
The second guide assembly, the connecting plate that is connected between mechanical amplification piezoelectric ceramic actuator (51) and the second guide assembly with
And the clump weight (54) on connecting plate is set.
3. the fast tool servo device according to claim 2 with dynamic force balanced function, which is characterized in that the company
Fishplate bar includes the level board (56) being fixed on the second guide assembly, is fixed on mechanical amplification piezoelectric ceramic actuator (51)
Vertical plate (55) and reinforcing rib (57) between level board (56) and vertical plate (55) is set.
4. the fast tool servo device according to claim 2 with dynamic force balanced function, which is characterized in that described
Two guide assemblies include the guide rail (52) being fixed on pedestal (1) and the sliding block (53) being set on guide rail (52), described
Connecting plate is fixed on sliding block (53).
5. the fast tool servo device according to claim 1 with dynamic force balanced function, which is characterized in that described
One guide assembly (4) is air-float guide rail.
6. the fast tool servo device according to claim 5 with dynamic force balanced function, which is characterized in that the gas
Floating guide rail includes the air bearing dynamic rail of the air bearing orbit determination (41) being fixed on pedestal (1) and setting on air bearing orbit determination (41)
(42), through-hole is offered on the air bearing orbit determination (41), the air bearing dynamic rail (42) is inserted into through-hole；In the gas
The appearance of floating fixed rail (41) is inward-facing to be offered throttle orifice (43), and the throttle orifice (43) is connected to through-hole.
7. the fast tool servo device according to claim 6 with dynamic force balanced function, which is characterized in that the section
Discharge orifice (43) has several and is evenly distributed on air bearing orbit determination (41).
8. the fast tool servo device according to claim 6 with dynamic force balanced function, which is characterized in that the section
Discharge orifice (43) shares 5 rows and is evenly distributed on air bearing orbit determination (41), and throttle orifice described in every row (43) has 3.
9. the fast tool servo device according to claim 6 with dynamic force balanced function, which is characterized in that the electricity
Thermomechanical components (3) include voice coil motor and the link block (33) that voice coil motor head is arranged in, and the air bearing dynamic rail (42) is solid
It is scheduled on link block (33).
10. the fast tool servo device according to claim 9 with dynamic force balanced function, which is characterized in that described
Voice coil motor includes the mover coil (32) of stator (31) and setting in stator (31) inside, and the stator (31) is by setting
The clamping bench (34) set on pedestal (1) is fixed, and the stator (31) and connector (2) are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555039.2A CN110181327A (en) | 2019-06-25 | 2019-06-25 | A kind of fast tool servo device with dynamic force balanced function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555039.2A CN110181327A (en) | 2019-06-25 | 2019-06-25 | A kind of fast tool servo device with dynamic force balanced function |
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| CN110181327A true CN110181327A (en) | 2019-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910555039.2A Pending CN110181327A (en) | 2019-06-25 | 2019-06-25 | A kind of fast tool servo device with dynamic force balanced function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112276639A (en) * | 2020-10-22 | 2021-01-29 | 山东大学深圳研究院 | Macro-micro double-drive type large-stroke high-precision fast cutter servo device |
| CN113399747A (en) * | 2021-06-28 | 2021-09-17 | 江苏集萃精凯高端装备技术有限公司 | Regular hexahedron reflector single-point diamond machine tool and machining method thereof |
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| CN102554633A (en) * | 2011-11-23 | 2012-07-11 | 中国人民解放军国防科学技术大学 | Long-stroke high-frequency-response quick cutter servo device |
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| CN210121787U (en) * | 2019-06-25 | 2020-03-03 | 江苏集萃精凯高端装备技术有限公司 | Fast knife servo device with dynamic force balance function |
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2019
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| JPH0516058A (en) * | 1991-07-08 | 1993-01-26 | Sony Corp | Rotary grinding machine |
| CN101681986A (en) * | 2007-03-14 | 2010-03-24 | 锡德雷特技术公司 | Fine positioning system using an inertial motor based on a mechanical amplifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112276639A (en) * | 2020-10-22 | 2021-01-29 | 山东大学深圳研究院 | Macro-micro double-drive type large-stroke high-precision fast cutter servo device |
| CN113399747A (en) * | 2021-06-28 | 2021-09-17 | 江苏集萃精凯高端装备技术有限公司 | Regular hexahedron reflector single-point diamond machine tool and machining method thereof |
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