CN206732672U - The fast tool servo device of two-axle interlocking - Google Patents
The fast tool servo device of two-axle interlocking Download PDFInfo
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- CN206732672U CN206732672U CN201720352345.2U CN201720352345U CN206732672U CN 206732672 U CN206732672 U CN 206732672U CN 201720352345 U CN201720352345 U CN 201720352345U CN 206732672 U CN206732672 U CN 206732672U
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- flexible hinge
- bridge type
- piezoelectric ceramics
- fast tool
- tool servo
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Abstract
It the utility model is related to a kind of fast tool servo device of two-axle interlocking, including framework, detachable flexible connecting member, fast tool servo knife rest, first piezoelectric ceramics, second piezoelectric ceramics and tool mount, one end of the detachable flexible connecting member connects the framework, the other end of the detachable flexible connecting member connects the fast tool servo knife rest, fast tool servo knife rest described in first Piezoelectric Ceramic moves back and forth in the first direction, the tool mount is installed on the fast tool servo knife rest, tool mount described in second Piezoelectric Ceramic moves back and forth in a second direction.The fast tool servo device of above-mentioned two-axle interlocking disclosure satisfy that high frequency sound, high acceleration and high-precision processing request, can process the freeform optics surface with micro-nano array structure.
Description
Technical field
Fast tool servo engineering device technique field is the utility model is related to, is filled more particularly to a kind of fast tool servo of two-axle interlocking
Put.
Background technology
Optical thin film is part important in backlight of LCD module.Usually, watched using based on fast tool
Take the diamond turning method processing optical film of (Fast Tool Servo, FTS).However, traditional FTS devices are
The linear FTS devices of single shaft, it is impossible to meet the requirement of processing optical free form surface.
Utility model content
Based on this, it is necessary to for can not processing optical free form surface the problem of, there is provided a kind of sharp knife of two-axle interlocking is watched
Clothes are put, and it can be used in processing optical free form surface.
The fast tool servo device of a kind of two-axle interlocking, it is characterised in that including framework, detachable flexible connecting member, sharp knife
Servo saddle, the first piezoelectric ceramics, the second piezoelectric ceramics and tool mount, one end connection of the detachable flexible connecting member
The framework, the other end of the detachable flexible connecting member connect the fast tool servo knife rest, and first piezoelectric ceramics drives
Move the fast tool servo knife rest to move back and forth in the first direction, the tool mount is installed on the fast tool servo knife rest, institute
Tool mount described in stating the second Piezoelectric Ceramic moves back and forth in a second direction.
The fast tool servo device of above-mentioned two-axle interlocking, tool mount are used to install cutter.First Piezoelectric Ceramic is fast
Knife servo saddle moves back and forth in the first direction, so as to drive the cutter being installed on fast tool servo knife rest reciprocal in the first direction
Motion.Second Piezoelectric Ceramic tool mount moves back and forth in a second direction, is installed on so as to drive on tool mount
Cutter move back and forth in a second direction.In the presence of the first piezoelectric ceramics and the second piezoelectric ceramics, cutter can be first
Moved back and forth in direction and second direction, so as to realize two-dimentional processing.Freeform optics surface has micro-nano array structure.Pressure
Electroceramics FTS has the characteristics of response frequency is high, acceleration is high and positioning precision is high, and flexure hinge mechanism has without friction and height
The characteristics of displacement resolution.Therefore, the fast tool servo device of above-mentioned two-axle interlocking disclosure satisfy that high frequency sound, high acceleration and high-precision
The processing request of degree, the freeform optics surface with micro-nano array structure can be processed.
In one of the embodiments, the detachable flexible connecting member includes more than a pair the first flexible hinges, described
The detachably connected framework in one end of first flexible hinge, the detachably connected institute of the other end of first flexible hinge
Fast tool servo knife rest is stated, the first flexible hinge described in each pair is correspondingly arranged in the both sides of the fast tool servo knife rest respectively.In this way,
Fast tool servo knife rest can be dismantled, and the both sides uniform force of fast tool servo knife rest, and it is steadily reliable to be advantageous to fast tool servo knife rest
Ground moves back and forth in the first direction.
In one of the embodiments, the setting direction of first piezoelectric ceramics is parallel with the first direction, described
One end of first piezoelectric ceramics is connected with the framework, and the other end of first piezoelectric ceramics connects with the fast tool servo knife rest
Connect.Framework is fixedly installed in ground, marble countertop or other hard firm surfaces.First piezoelectric ceramics acts in voltage
Under, the length increase or diminution of the first piezoelectric ceramics, moved back and forth in the first direction so as to promote.
In one of the embodiments, the fast tool servo knife rest is provided with bridge type flexible hinge and the second flexible hinge, institute
State bridge type flexible hinge along the first direction be provided with bridge type flexible hinge first end and with the bridge type flexible hinge first end
The end of bridge type flexible hinge second being oppositely arranged, the bridge type flexible hinge are provided with bridge type flexible hinge the along the second direction
Three ends and the end of bridge type flexible hinge the 4th being oppositely arranged with the end of bridge type flexible hinge the 3rd, the bridge type flexible hinge
Three ends are fixedly installed on the side of the fast tool servo knife rest, one end of second flexible hinge and the fast tool servo knife rest
Opposite side connection, the other end of second flexible hinge is connected with the end of bridge type flexible hinge the 4th, and the cutter is pacified
Piece installing is installed on the end of bridge type flexible hinge the 4th；
The fast tool servo device of above-mentioned two-axle interlocking also includes the first drive rod and the second drive rod, first drive rod
One end be installed on the bridge type flexible hinge first end, the other end of first drive rod is provided with the first gib head, described
One gib head is connected with one end of second piezoelectric ceramics, and one end of second drive rod is installed on the bridge type flexible hinge
Second end, the other end of second drive rod are provided with the second gib head, and second gib head is another with second piezoelectric ceramics
One end connects.When the second piezoelectric ceramics extends, because the first gib head and the second gib head are symmetrically distributed on fast tool servo knife rest,
So the second piezoelectric ceramics, without the active force by second direction, avoids motion process only by the active force of first direction
Coupled motions.
In this way, the second piezoelectric ceramics, under driving voltage effect, the length of the second piezoelectric ceramics increases, so as to promote bridge-type
The end of flexible hinge the 4th moves back and forth in a second direction, so as to realize that cutter moves reciprocatingly in a second direction.
In one of the embodiments, the bridge type flexible hinge also the first axle bar including equal length, the second hinge
Chain bar, third hinge bar and the 4th hinge-rod, one end of the first axle bar are connected with the bridge type flexible hinge first end,
The other end of the first axle bar and the bridge type flexible hinge three-terminal link, one end of the second hinge bar with it is described
Bridge type flexible hinge first end is connected, and the other end of the second hinge bar is connected with the end of bridge type flexible hinge the 4th, institute
The one end for stating third hinge bar is connected with the end of bridge type flexible hinge second, the other end and the bridge of the third hinge bar
Formula flexible hinge three-terminal link, one end of the 4th hinge-rod are connected with the end of bridge type flexible hinge second, and described
The other end of four hinge-rods is connected with the end of bridge type flexible hinge the 4th, the first axle bar and the folder of the second direction
Angle is more than 45 degree.According to the architectural feature of fast tool servo knife rest, bridge type flexible hinge first end or the end of bridge type flexible hinge second
Movement in a first direction, the movement of the end of bridge type flexible hinge the 4th in a second direction will be driven.Put according to lever displacement
Big principle, when first axle bar and the angle of second direction are more than 45 degree, the end of bridge type flexible hinge the 4th is in a second direction
Amount of movement be more than the amount of movement of bridge type flexible hinge first end or the end of bridge type flexible hinge second in a first direction.In this way,
Second piezoelectric ceramics realizes displacement equations by fast tool servo knife rest, has height so as to the fast tool servo device of above-mentioned two-axle interlocking
The kinetic characteristic of the big stroke of frequency.
In one of the embodiments, have first between the side of second piezoelectric ceramics and first drive rod
Gap, there is the second gap between the side of second piezoelectric ceramics and second drive rod.Due to the second piezoelectric ceramics
And first have the first gap between drive rod, so when relative motion occurs for the second piezoelectric ceramics and the first drive rod, second
Piezoelectric ceramics and the first drive rod will not produce interference, both be easy to the installation of the second piezoelectric ceramics, turn avoid the second piezoelectricity pottery
Porcelain rubs in high frequency motion process and the first drive rod.Similarly, the installation of the second piezoelectric ceramics had both been easy in the second gap, again
The second piezoelectric ceramics is avoided to rub in high frequency motion process and the second drive rod.
In one of the embodiments, first piezoelectric ceramics is coaxially disposed with second piezoelectric ceramics.In this way, by
It is to be symmetrically distributed in by the first drive rod and the second drive rod among fast tool servo knife rest in the second piezoelectric ceramics, in the first pressure
Under the driving of electroceramics, with fast tool servo knife rest mass motion, therefore the second piezoelectric ceramics is solely subjected to axial force, is not subject to radially
Power, be advantageous to improve the life-span of the second piezoelectric ceramics.
In one of the embodiments, one end of second piezoelectric ceramics is provided with pressure sensor, and the pressure passes
The end contact of sensor and second piezoelectric ceramics.Pressure sensor is used for the dynamic stress feelings for measuring the second piezoelectric ceramics
Condition, converted by D/A, facilitate staff to realize error analysis and compensation to the fast tool servo device of above-mentioned two-axle interlocking.Work
The stressing conditions of the second piezoelectric ceramics can also be known by pressure sensor by making personnel, and for researching and analysing or adjusting the second pressure
The voltage applied on electroceramics.
In one of the embodiments, the other end of second piezoelectric ceramics is connected to described fast by the first fastener
Knife servo saddle.In this way, the second piezoelectric ceramics obtains pretightning force by the first fastener, the second piezoelectric ceramics is avoided to be moved through
Fallen off in journey, and the rigidity of bridge type flexible hinge can be adjusted in real time.
In one of the embodiments, the second direction is vertical with the first direction.In this way, cutter is in a first direction
On motion do not interfere with the motion of cutter in a second direction.In the first piezoelectric ceramics and the independent action of the second piezoelectric ceramics
Under, cutter is linked in the first direction and a second direction, and the fast tool servo device of above-mentioned two-axle interlocking is realized in 2 frees degree
High-frequency reciprocating moves.
Brief description of the drawings
Fig. 1 is the schematic diagram of the fast tool servo device of two-axle interlocking in the utility model embodiment；
Fig. 2 is the explosive view of the fast tool servo device of two-axle interlocking in the utility model embodiment；
Fig. 3 is along the sectional view of line A-A in Fig. 1.
100th, framework, 110, first direction, 120, second direction, the 130, second fastener, 200, detachable flexible connection
Part, the 210, first flexible hinge, 300, fast tool servo knife rest, the 310, second flexible hinge, 320, bridge type flexible hinge, 321, bridge
Formula flexible hinge first end, 322, the end of bridge type flexible hinge second, 323, the end of bridge type flexible hinge the 3rd, 324, bridge type flexible hinge
The end of chain the 4th, 325, first axle bar, 326, second hinge bar, 327, third hinge bar, the 328, the 4th hinge-rod, 400, first
Piezoelectric ceramics, the 500, second piezoelectric ceramics, the 501, first gap, the 502, second gap, the 503, first fastener, 600, cutter peace
Piece installing, 700, cutter, the 810, first drive rod, the 811, first gib head, the 820, second drive rod, the 821, second gib head, 830, pressure
Force snesor, the 841, the 3rd fastener, the 842, the 4th fastener, the 843, the 5th fastener, 844, L plates, the 845, the 6th fastener.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Better embodiment of the present utility model is given in accompanying drawing.But the utility model can come in many different forms
Realize, however it is not limited to embodiments described herein.On the contrary, the purpose for providing these embodiments is to make to this practicality newly
The more thorough and comprehensive that the disclosure of type understands.
It should be noted that when element is referred to as " being installed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.On the contrary, when element be referred to as " directly existing " another element " on " when,
In the absence of intermediary element.Term as used herein " vertically ", " horizontal ", "left", "right" and similar statement are
For illustrative purposes." first " described in the utility model, " second ", " the 3rd ", " the 4th ", " the 5th " and " the 6th " not generation
The specific quantity of table and order, are only used for the differentiation of title.
As depicted in figs. 1 and 2, the fast tool servo device of a kind of two-axle interlocking, including the flexible connection of framework 100, detachable
Part 200, fast tool servo knife rest 300, the first piezoelectric ceramics 400, the second piezoelectric ceramics 500 and tool mount 600.Detachable is soft
Property connector 200 one end connection framework 100, the other end connection fast tool servo knife rest 300 of detachable flexible connecting member 200.
First piezoelectric ceramics 400 driving fast tool servo knife rest 300 110 moves back and forth in the first direction.Tool mount 600 is installed on soon
Knife servo saddle 300.Second piezoelectric ceramics 500 driving tool mount 600 120 moves back and forth in a second direction.
The fast tool servo device of above-mentioned two-axle interlocking, tool mount 600 are used to install cutter 700.Tool mount 600
Can be Cutting tool installation manner plate, Cutting tool installation manner block or cutter mounting frame.Cutter 700 is chosen as diamond cutter.Framework 100 is fixedly mounted
In ground, marble countertop or other hard firm surfaces.The edge of first piezoelectric ceramics 400 driving fast tool servo knife rest 300
First direction 110 moves back and forth, so as to drive the cutter 700 being installed on fast tool servo knife rest 300 110 reciprocal in the first direction
Motion.Second piezoelectric ceramics 500 driving tool mount 600 120 is moved back and forth in a second direction, and cutter is installed on so as to drive
Cutter 700 on installed part 600 120 moves back and forth in a second direction.In the first piezoelectric ceramics 400 and the second piezoelectric ceramics 500
Effect respectively under, cutter 700 can in a first direction 110 and second direction 120 on move back and forth, cutter 700 is relative to work
Part can simultaneously be realized along the high-frequency reciprocating of two kinematic axis and move or swing, so as to realize two-dimentional processing.Optics is free
Curved surface has micro-nano array structure.Piezoelectric ceramics FTS has the characteristics of response frequency is high, acceleration is high and positioning precision is high, soft
Property linkage have without friction and the characteristics of high displacement resolution.Therefore, the fast tool servo device of above-mentioned two-axle interlocking can
Meet high frequency sound, high acceleration and high-precision processing request, the freeform optics surface with micro-nano array structure can be processed.
Specifically, as shown in figure 1, detachable flexible connecting member 200 includes more than a pair the first flexible hinges 210.First
The detachably connected framework 100 in one end of flexible hinge 210, the detachably connected sharp knife of the other end of the first flexible hinge 210
Servo saddle 300.The first flexible hinge of each pair 210 is correspondingly arranged in the both sides of fast tool servo knife rest 300 respectively.Fast tool servo knife
Frame 300 is detachably connected by the first flexible hinge 210 with framework 100.The both sides uniform force of fast tool servo knife rest 300, has
Stably and reliably 110 moved back and forth in the first direction beneficial to fast tool servo knife rest 300.In addition, the both ends of the first flexible hinge 210
It is detachably connected respectively with framework 100 and fast tool servo knife rest 300, so as to which the first flexible hinge 210 can pass through dismounting and change
First flexible hinge 210 of different-thickness.In this way, staff is changed by changing the first flexible hinge 210 of different-thickness
The rigidity of the intrinsic frequency of first flexible hinge 210 and the first flexible hinge 210.
Specifically, as shown in figure 1, the first flexible hinge 210 is chosen as semicircle angle-style flexible hinge.Semicircle angle-style flexible hinge
One end of chain is installed on framework 100 by the second fastener 130.Hexagonal socket head cap screw can be selected in second fastener 130.
Specifically, as shown in figure 1, the setting direction of the first piezoelectric ceramics 400 is parallel with first direction 110.First piezoelectricity
The setting direction of ceramics 400 is the length direction of the first piezoelectric ceramics 400 or the installation direction of the first piezoelectric ceramics 400.First
One end of piezoelectric ceramics 400 is connected with framework 100, and the other end of the first piezoelectric ceramics 400 is connected with fast tool servo knife rest 300.
Under voltage effect, the length increase or diminution of the first piezoelectric ceramics 400, so as to promote fast tool servo knife rest 300 along first party
Moved back and forth to 110.
It is appreciated that the setting direction of the first piezoelectric ceramics be also chosen as it is parallel with second direction.First piezoelectric ceramics is pacified
Both ends loaded on fast tool servo knife rest.The other both ends of fast tool servo knife rest are connected with framework and fast tool servo knife rest respectively.Such as
This, under driving voltage effect, the length of the first piezoelectric ceramics increases or reduced in a second direction the first piezoelectric ceramics, drives fast
The both ends movement of knife servo saddle, and then drive the other both ends of fast tool servo knife rest to move in a first direction, so as to realize
Cutter moves back and forth in the first direction.
On the basis of previous embodiment, as depicted in figs. 1 and 2, fast tool servo knife rest 300 is provided with the second flexible hinge
310 and bridge type flexible hinge 320.Bridge type flexible hinge 320 110 is provided with the He of bridge type flexible hinge first end 321 in the first direction
The second end of bridge type flexible hinge 322 being oppositely arranged with bridge type flexible hinge first end 321.Bridge type flexible hinge 320 along second
The bridge type flexible that direction 120 is provided with the end 323 of bridge type flexible hinge the 3rd and is oppositely arranged with the end 323 of bridge type flexible hinge the 3rd is cut with scissors
The end 324 of chain the 4th.The end 323 of bridge type flexible hinge the 3rd is fixedly installed on the side of fast tool servo knife rest 300.Second flexible hinge
310 one end is connected with the opposite side of fast tool servo knife rest 300, the other end and the bridge type flexible hinge of the second flexible hinge 310
4th end 324 connects.Tool mount 600 is installed on the end 324 of bridge type flexible hinge the 4th.Specifically, tool mount 600 is logical
Cross the 5th fastener 843 and be installed to the end 324 of bridge type flexible hinge the 4th.
As shown in Figure 1 to Figure 3, the fast tool servo device of above-mentioned two-axle interlocking also includes the first drive rod 810 and the second drive
Lever 820.One end of first drive rod 810 is installed on bridge type flexible hinge first end 321.The other end of first drive rod 810
Provided with the first gib head 811.First gib head 811 is connected with one end of the second piezoelectric ceramics 500.Specifically, the first gib head 811 passes through
6th fastener 845 is connected with one end of the second piezoelectric ceramics 500.One end of second drive rod 820 is installed on bridge type flexible hinge
The second end of chain 322.The other end of second drive rod 820 is provided with the second gib head 821.Second gib head 821 and the second piezoelectric ceramics 500
The other end connection.
When the second piezoelectric ceramics 500 extends, because the first gib head 811 and the second gib head 821 are symmetrically distributed in sharp knife and watched
Take on knife rest 300, so the second piezoelectric ceramics 500 is only by the active force of first direction 110, without the work by second direction 120
Firmly, the coupled motions of motion process are avoided.Second piezoelectric ceramics 500 is under voltage effect, the length of the second piezoelectric ceramics 500
Degree increase, so as to which the second piezoelectric ceramics 500 applies the first pulling force, the second piezoelectricity by the first gib head 811 to the first drive rod 810
Ceramics 500 apply the second pulling force by the second gib head 821 to the second drive rod 820.The direction of first pulling force is from bridge type flexible
Hinge first end 321 points to the second end of bridge type flexible hinge 322.The direction of second pulling force is from the end of bridge type flexible hinge second
322 point to bridge type flexible hinge first end 321.Therefore, bridge type flexible hinge first end 321 and the end of bridge type flexible hinge second
322 move toward one anothers, so that the end 323 of bridge type flexible hinge the 3rd and the end 324 of bridge type flexible hinge the 4th are located remotely from each other, drive
Tool mount 600 120 does feed motion in a second direction.
In this way, the second piezoelectric ceramics 500, under voltage effect, the length of the second piezoelectric ceramics 500 increases or reduced, so as to
The end 324 of bridge type flexible hinge the 4th is promoted 120 to move back and forth in a second direction, so as to realize cutter 700 in a second direction
120 move reciprocatingly.Wherein, fast tool servo knife rest 300 is formed in one.
Specifically, as shown in Fig. 2 the first drive rod 810 is installed to bridge type flexible hinge first by the 3rd fastener 841
End 321.Second drive rod 820 is installed to the second end of bridge type flexible hinge 322 by the 4th fastener 842.3rd fastener 841
And/or the 4th fastener 842 be chosen as hexagonal socket head cap screw.First drive rod 810 and the second drive rod 820 are oppositely arranged.First drives
Lever 810 is installed to bridge type flexible hinge 320 from the top of the second piezoelectric ceramics 500.Second drive rod 820 is made pottery from the second piezoelectricity
The bottom of porcelain 500 is installed to bridge type flexible hinge 320.
Specifically, as depicted in figs. 1 and 2, fast tool servo knife rest 320 also the first axle bar 325 including equal length, the
Two hinge bar 326, the hinge-rod 328 of third hinge bar 327 and the 4th.One end of first axle bar 325 and bridge type flexible hinge the
One end 321 is connected, and the other end of first axle bar 325 is connected with the end 323 of bridge type flexible hinge the 3rd.Second hinge bar 326
One end is connected with bridge type flexible hinge first end 321, the other end and the end 324 of bridge type flexible hinge the 4th of second hinge bar 326
Connection.One end of third hinge bar 327 is connected with the second end of bridge type flexible hinge 322, the other end and bridge of third hinge bar 327
The end 323 of formula flexible hinge the 3rd connects.One end of 4th hinge-rod 328 is connected with the second end of bridge type flexible hinge 322, the 4th hinge
The other end of chain bar 328 is connected with the end 324 of bridge type flexible hinge the 4th.First axle bar 325 and the angle of second direction 120 are big
In 45 degree.
Due to first axle bar 325, second hinge bar 326, third hinge bar 327 and the equal length of the 4th hinge-rod 328,
So bridge type flexible hinge 320 has symmetrical structure, displacement contingency can be eliminated, avoids the second piezoelectric ceramics 500 to cutter
700 produce the displacement on first direction 110.
According to the architectural feature of bridge type flexible hinge 320, bridge type flexible hinge first end 321 or bridge type flexible hinge second
The movement on 110 in a first direction of end 322, will drive movement of the end 324 of bridge type flexible hinge the 4th in second direction 120.
According to lever displacement equations principle, when first axle bar 325 and the angle of second direction 120 are more than 45 degree, bridge type flexible hinge
Amount of movement of the end 324 of chain the 4th in second direction 120 is more than bridge type flexible hinge first end 321 or bridge type flexible hinge second
The amount of movement on 110 in a first direction of end 322.Such as when the angle of first axle bar 325 and second direction 120 is 72 degree,
The displacement at the end 324 of bridge type flexible hinge the 4th is 6.16 times of the displacement of bridge type flexible hinge first end 321.Such as
This, the second piezoelectric ceramics 500 realizes displacement equations by bridge type flexible hinge 320, so as to meet that cutter 700 does high frequency big displacement
Motion.
On the basis of previous embodiment, as shown in figure 3, the side of the second piezoelectric ceramics 500 and the first drive rod 810 it
Between there is the first gap 501.There is the second gap 502 between the side of second piezoelectric ceramics 500 and the second drive rod 820.By
There is the first gap 501 between the second piezoelectric ceramics 500 and the first drive rod 810, so the second piezoelectric ceramics 500 and first
When relative motion occurs for drive rod 810, the second piezoelectric ceramics 500 and the first drive rod 810 will not produce interference, both be easy to second
The installation of piezoelectric ceramics 500, it turn avoid the second piezoelectric ceramics 500 and rubbed in high frequency motion process and the first drive rod 810
Wipe.Similarly, the installation of the second piezoelectric ceramics 500 is easy in the second gap 502, turn avoid the second piezoelectric ceramics 500 and is transported in high frequency
Dynamic process rubs with the second drive rod 820.
Specifically, as shown in Figures 2 and 3, one end of the second piezoelectric ceramics 500 is provided with pressure sensor 830.Pressure passes
The end contact of the piezoelectric ceramics 500 of sensor 830 and second.Pressure sensor 830 is used for the dynamic for measuring the second piezoelectric ceramics 500
Stressing conditions, converted by D/A, facilitate staff to realize error analysis and benefit to the fast tool servo device of above-mentioned two-axle interlocking
Repay.Staff can also know the stressing conditions of the second piezoelectric ceramics 500 by pressure sensor 830, and for researching and analysing
Or the voltage applied on the second piezoelectric ceramics 500 of adjustment.
Further, as shown in Figures 2 and 3, the other end of the second piezoelectric ceramics 500 is connected by the first fastener 503
To fast tool servo knife rest 300.In this way, the second piezoelectric ceramics 500 obtains pretightning force by the first fastener 503, the second pressure is avoided
Electroceramics 500 is fallen off in motion process.In addition, staff is by turning the first fastener 503, so as to change
The pretightning force of second piezoelectric ceramics 500, pretightning force are further converted to the resistance voltage of the second piezoelectric ceramics 500, realize second
The gapless motion of piezoelectric ceramics 500.
On the basis of previous embodiment, as shown in figure 1, the first piezoelectric ceramics 400 is coaxially set with the second piezoelectric ceramics 500
Put.Because the second piezoelectric ceramics 500 is to be symmetrically distributed in fast tool servo knife by the first drive rod 810 and the second drive rod 820
Among frame 300, under the driving of the first piezoelectric ceramics 400, with the mass motion of fast tool servo knife rest 300, therefore the second piezoelectricity is made pottery
Porcelain 500 is solely subjected to axial force, is not subject to radial load, is advantageous to improve the life-span of the second piezoelectric ceramics 500.
In another embodiment of the present utility model, the central shaft of the first piezoelectric ceramics 400 and the second piezoelectric ceramics 500 can be with
It is mutually perpendicular to.Such as first piezoelectric ceramics 400 in the first direction 110 set (referring to Fig. 1).And the edge of the second piezoelectric ceramics 500
Second direction 120 is set.Specifically, the one end of the second piezoelectric ceramics 500 is connected with fast tool servo knife rest 300, the second piezoelectric ceramics
500 other ends are provided with motion block.Motion block is installed on fast tool servo knife rest 300 by flexible hinge.Tool mount 600 is installed
In on motion block.In this way, cutter 700 is under the effect respectively of the first piezoelectric ceramics 400 and the second piezoelectric ceramics 500, cutter 700
Can in the first direction 110 and second direction 120 independently move reciprocatingly.
Specifically, first direction 110 and second direction 120 are vertical, and motion of the cutter 700 in a first direction on 110 will not
Influence motion of the cutter in second direction 120, cutter 700 independently can do past in first direction 110 and second direction 120
Multiple motion.
Specifically, as shown in figure 1, the first flexible hinge 210 is fillet type flexible hinge.Fillet type flexible hinge or right angle
Type flexible hinge is smaller than the rigidity of hyperbolic-type flexible hinge or parabolic type flexible hinge, flexibility is big and should with stronger
Change ability.Therefore, the fast tool servo device of above-mentioned two-axle interlocking has the characteristics of high frequency sound.Similarly, bridge type flexible hinge 320 can
From perpendicular type bridge type flexible hinge.
Specifically, as shown in Fig. 2 the fast tool servo device of above-mentioned two-axle interlocking also includes L plates 844.The transverse direction of L plates 844
End face is installed on fast tool servo knife rest 300.The inwall of vertical of L plates 844 is provided with light hole.Light hole is used to measure cutter 700
It is mobile.Specifically, the motor message that laser passes through thang-kng hole measurement cutter 700.The fast tool servo device root of above-mentioned two-axle interlocking
According to the motor message of cutter 700, work pieces process feedback is obtained, and then control the first piezoelectric ceramics 400 or the second piezoelectric ceramics 500
Application voltage, to improve machining accuracy.
Traditional one-dimensional fast tool servo device can only do the at the uniform velocity feed motion of one degree of freedom.Above-mentioned two-axle interlocking it is fast
Knife servomechanism installation is moved by two frees degree, can reach advantages below：First, realize that point of a knife point becomes with the change of curved surface
Change, passively calculated according to knife tool arc position during processing, and compensate the mismachining tolerance of cutter；Second, above-mentioned two-axle interlocking
Dynamic and static rigidity of the fast tool servo device in a first direction or in second direction be by mechanical structure and do the output of device and protect
Card, increase second direction is the active direction of motion, can closed-loop control second direction in process displacement, equivalent to
Add the active stiffness in second direction；3rd, the fast tool servo device of above-mentioned two-axle interlocking can be engaged with lathe,
The X of lathe is made it possible to according to knife tool arc radius master to the high frequency motion consistent with the working frequency of lathe with being done in Z-direction
It is dynamic to change actual cut point, obtain high-precision free form surface micro-structural.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. the fast tool servo device of a kind of two-axle interlocking, it is characterised in that watched including framework, detachable flexible connecting member, sharp knife
Take knife rest, the first piezoelectric ceramics, the second piezoelectric ceramics and tool mount, one end connection institute of the detachable flexible connecting member
Framework is stated, the other end of the detachable flexible connecting member connects the fast tool servo knife rest, first Piezoelectric Ceramic
The fast tool servo knife rest moves back and forth in the first direction, and the tool mount is installed on the fast tool servo knife rest, described
Tool mount described in second Piezoelectric Ceramic moves back and forth in a second direction.
2. the fast tool servo device of two-axle interlocking according to claim 1, it is characterised in that the detachable flexible connection
Part includes more than a pair the first flexible hinges, the detachably connected framework in one end of first flexible hinge, and described
The detachably connected fast tool servo knife rest of the other end of one flexible hinge, the first flexible hinge described in each pair correspond to set respectively
It is placed in the both sides of the fast tool servo knife rest.
3. the fast tool servo device of two-axle interlocking according to claim 1, it is characterised in that first piezoelectric ceramics
Setting direction is parallel with the first direction, and one end of first piezoelectric ceramics is connected with the framework, first piezoelectricity
The other end of ceramics is connected with the fast tool servo knife rest.
4. the fast tool servo device of two-axle interlocking according to claim 1, it is characterised in that the fast tool servo knife rest is set
There are a bridge type flexible hinge and the second flexible hinge, the bridge type flexible hinge is provided with bridge type flexible hinge the along the first direction
One end and the end of bridge type flexible hinge second being oppositely arranged with the bridge type flexible hinge first end, the bridge type flexible hinge edge
The second direction is provided with the end of bridge type flexible hinge the 3rd and soft with bridge-type that the end of bridge type flexible hinge the 3rd is oppositely arranged
The property end of hinge the 4th, the end of bridge type flexible hinge the 3rd are fixedly installed on the side of the fast tool servo knife rest, and described second
One end of flexible hinge is connected with the opposite side of the fast tool servo knife rest, the other end and the bridge of second flexible hinge
The end of formula flexible hinge the 4th connects, and the tool mount is installed on the end of bridge type flexible hinge the 4th；
Also include the first drive rod and the second drive rod, one end of first drive rod is installed on the bridge type flexible hinge
One end, the other end of first drive rod are provided with the first gib head, one end of first gib head and second piezoelectric ceramics
Connection, one end of second drive rod is installed on the end of bridge type flexible hinge second, the other end of second drive rod
Provided with the second gib head, second gib head is connected with the other end of second piezoelectric ceramics.
5. the fast tool servo device of two-axle interlocking according to claim 4, it is characterised in that the bridge type flexible hinge is also
First axle bar, second hinge bar, third hinge bar and the 4th hinge-rod including equal length, the one of the first axle bar
End is connected with the bridge type flexible hinge first end, the other end of the first axle bar and the end of bridge type flexible hinge the 3rd
Connection, one end of the second hinge bar are connected with the bridge type flexible hinge first end, the other end of the second hinge bar
It is connected with the end of bridge type flexible hinge the 4th, one end of the third hinge bar connects with the end of bridge type flexible hinge second
Connect, the other end of the third hinge bar and the bridge type flexible hinge three-terminal link, one end of the 4th hinge-rod with
The end of bridge type flexible hinge second connection, the other end of the 4th hinge-rod connect with the end of bridge type flexible hinge the 4th
Connect, the first axle bar and the angle of the second direction are more than 45 degree.
6. the fast tool servo device of two-axle interlocking according to claim 4, it is characterised in that second piezoelectric ceramics
There is the first gap between side and first drive rod, the side of second piezoelectric ceramics and second drive rod it
Between there is the second gap.
7. the fast tool servo device of two-axle interlocking according to claim 4, it is characterised in that first piezoelectric ceramics with
Second piezoelectric ceramics is coaxially disposed.
8. the fast tool servo device of two-axle interlocking according to claim 4, it is characterised in that second piezoelectric ceramics
One end is provided with pressure sensor, the end contact of the pressure sensor and second piezoelectric ceramics.
9. the fast tool servo device of two-axle interlocking according to claim 8, it is characterised in that second piezoelectric ceramics
The other end is connected to the fast tool servo knife rest by the first fastener.
10. the fast tool servo device of the two-axle interlocking according to claim 1~9 any one, it is characterised in that described
Two directions are vertical with the first direction.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106881618A (en) * | 2017-04-05 | 2017-06-23 | 广州铁路职业技术学院 | A kind of fast tool servo device of two-axle interlocking |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106881618A (en) * | 2017-04-05 | 2017-06-23 | 广州铁路职业技术学院 | A kind of fast tool servo device of two-axle interlocking |
| CN106881618B (en) * | 2017-04-05 | 2023-11-28 | 广州铁路职业技术学院 | Two-axis linkage fast knife servo device |
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