CN204997078U - Be suitable for parallel elliptical vibration turning device of vertical excircle processing - Google Patents
Be suitable for parallel elliptical vibration turning device of vertical excircle processing Download PDFInfo
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- CN204997078U CN204997078U CN201520770814.3U CN201520770814U CN204997078U CN 204997078 U CN204997078 U CN 204997078U CN 201520770814 U CN201520770814 U CN 201520770814U CN 204997078 U CN204997078 U CN 204997078U
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Abstract
The utility model relates to a be suitable for parallel elliptical vibration turning device of vertical excircle processing, belong to receive a little with the complicated machining optical element technical field of super hot investment casting and difficult processing material. Two piezoelectric stack are connected with parallelly connected integral type hinge base member, and two displacement measurement baffles are connected with parallelly connected integral type hinge base member, and capacitive displacement transducer installs on the displacement sensor holder, and the displacement sensor holder is installed on parallelly connected integral type hinge base member through fastening screw respectively, and diamond tool passes through fastening screw and installs at parallelly connected integral type hinge base member front end. The advantage is: novel structure, the flexible hinge of the run -in of adoption can eliminate the driven motion of growing nonparasitically upon another plant, and flexible hinge adoption symmetric distribution has reduced mutual coupling motion on spatial structure, and computing process is simple, realizes the accurate control easily.
Description
Technical field
The utility model belongs to the complicated optical effect correction technical field of micro-nano and super hot investment casting and difficult-to-machine material, particularly relates to a kind of parallel elliptical vibration truning fixture being suitable for vertical Excircle machining.
Background technology
Under the background of scientific and technological fast development in recent years, the required precision of some applications to institute's processing parts improves gradually, such as Aero-Space, fine measuring instrument etc., but the restriction of conventional machining process, there is bottleneck in the processing that result in part, be difficult to break through further again, diamond cutter brings hope at the raising part processing precision that is applied as of field of machining, but for the processing of some ferrous metal materials, the Fast Wearing of diamond cutter, part processing precision is not only made to be difficult to have significant improvement, and add old of processing, so seeking a kind of efficient machining process is the emphasis improving part processing precision at present, vibrocutting is suggested just on this demand, very soon accept by numerous scholars, the intermittent cutting way of its uniqueness effectively prevent the Fast Wearing of diamond cutter, extend cutting-tool's used life, improve part processing precision.
Vibrocutting was successfully applied in the machining of difficult-to-machine material and is subject to the extensive concern of whole world scholar in 1966, but the pressing characteristic that after cutter, knife face has in process, destroy the precision of machined surface, and increase tool wear, cannot improve a lot in prolongation cutter life, the people such as this English of society two professor of Nagoya University proposed the concept of elliptical vibration cutting (EllipticalVibrationCutting) first in 1993, simultaneously for some common difficult-to-machine materials, such as carbide alloy etc., carry out correlation test, the result of research shows, elliptical vibration cutting can suppress the flutter in process, greatly reduce cutting force, reduce tool wear, extend cutter life, improve the suface processing quality of part, ductility cutting etc. can be tested for fragile material.
The current research for elliptical vibration cutting both at home and abroad mainly contains Kobe University and the Nagoya University of Japan, the Bremen university of Germany, NorthCarolina university of the U.S. and Northwest University, NUS, domestic Tsing-Hua University, Jilin University, BJ University of Aeronautics & Astronautics, Nanjing Aero-Space University, Harbin Institute of Technology, The Hong Kong Polytechnic University, Xiamen University, Institutes Of Technology Of He'nan etc.What research related to mainly contains elliptical vibration cutting device, elliptical vibration cutting path, and elliptical vibration cutting controls, and crisp transformation performance moulded by elliptical vibration cutting difficult-to-machine material, elliptical vibration cutting very low power processing characteristics, elliptical vibration cutting power etc.
The research of elliptical vibration cutting device is mainly divided into piezoelectric patches transducer ultrasonic oscillating mode device and Piezoelectric Driving flexible hinge chain off-resonance type device.The former belongs to resonance type device, its main feature can realize higher frequency in the process of processing, according to current statistics, elliptical vibration cutting processing frequency can reach 60KHZ, but also there is the defect of some inherences in the elliptical vibration cutting device of resonance type, such as need to realize resonance according to the intrinsic frequency of device itself in process, and then machining is implemented on the basis of resonant frequency, so, the frequency of processing just can not adjust, easily produce coupling between each first order mode simultaneously, the difficulty controlled is larger, so at the design aspect of device, non-co-vibration shape elliptical vibration cutting device receives the concern of researcher gradually, non-co-vibration shape elliptical vibration cutting device is generally drive flexible hinge to form by piezoelectric stack, the shape of flexible hinge, size and the method for salary distribution all affect to some extent on the effect of elliptical vibration cutting.The elliptical orbit of diamond synthesis point of a knife is carried out according to the method for salary distribution of flexible hinge, elliptical vibration cutting non-co-vibration shape device is recorded according to current document, there is the parallel and flexible hinge tandem two kinds of flexible hinge, non-co-vibration shape elliptical vibration cutting device is all generally designed by horizontal lathe, device fix a cutting tool formed elliptical trajectory plane and machine tool chief axis central axis, effective intermittent cutting movement can be formed, and for vertical lathe, this kind of device fix a cutting tool formed elliptical trajectory plane and machine tool chief axis centerline parallel, be unfavorable for forming intermittent cutting movement.
What current existing off-resonance elliptical vibration cutting device patent can be looked into has: a kind of mixing three-dimensional elliptical vibrocutting method that patent (CN102078967A) is mentioned, what adopt is parallel flexible hinge, piezoelectric stack is adopted to drive, this parallel device is owing at right angles distributing between its each kinematic axis, easy generation sports coupling, controls very difficult.The oval topping machanism that patent (CN102059575A) is mentioned, what adopt is in-line flexible hinge, but in the design process, the quality of dynamic component is larger, be difficult to realize high frequency cut, being limited in scope of parameter adjustment, for can match machined lathe require higher, not there is generality.A kind of three-dimensional elliptical vibration cutting device that patent (CN102371359A) is mentioned has above-mentioned limitation too, and there is not been reported to be directed to the elliptical vibration cutting device of vertical cylindrical turning.
In sum, existing off-resonance elliptical vibration cutting device also also exists some shortcomings.Therefore for these weak points, must study and propose a kind of new elliptical vibration cutting device, to realize the demand of the various difficult-to-machine material of Diamond Cutting and not coplanar type, obtaining best machinability.
Summary of the invention
The utility model provides a kind of parallel elliptical vibration truning fixture being suitable for vertical Excircle machining, thus realizes the Ultra-precision machining of difficult-to-machine material on vertical lathe.
The technical scheme that the utility model is taked is: piezoelectric stack one is connected with integral hinge matrix in parallel by the pre-loading screw one be arranged on hole five, piezo stack two heap is connected with integral hinge matrix in parallel by the pre-loading screw two be arranged on Kong Si, displacement measurement baffle plate one is arranged on the hole seven of integral hinge matrix in parallel by trip bolt, displacement measurement baffle plate two-way is crossed trip bolt and is arranged on the hole two of integral hinge matrix in parallel, capacitive displacement transducer one and capacitive displacement transducer two respectively correspondence are arranged on displacement transducer holder one and displacement transducer holder two, on the hole six that displacement transducer holder one and displacement transducer holder two are arranged on integral hinge matrix in parallel respectively by trip bolt and hole three, diamond cutter is arranged on integral hinge matrix front end in parallel by trip bolt, be fixed on hole eight by trip bolt.
The utility model integral hinge matrix in parallel adopts the shaping mode of time processing to process.
On the utility model integral hinge matrix in parallel, two parallel flexible hinges all adopt rectangular hinge, and become parallelogram to arrange between four subbranches comprised in single hinge, form single-degree-of-freedom closed system.
The utility model integral hinge matrix in parallel is fixedly connected with force snesor by 4 Kong Yiyong screws.
The utility model advantage is: novel structure, wherein integral hinge matrix time processing in parallel forms, overall structure is relatively simple, be easy to manufacture, and greatly reduce owing to assembling the error caused, the volume of this parallel elliptical vibration truning fixture is little, and quality is little, is easy to the high frequency machining realizing elliptical vibration; The flexible hinge adopted is all parallelogram, and its advantage can reduce motion of growing nonparasitically upon another plant to the full extent, fully ensures the one-way of motion; The utility model is arranged on force snesor by the screwed hole on base in integral hinge matrix in parallel, realize the further optimization to cutting force, also can be directly installed on the guide rail of vertical lathe, simultaneously because the whole height of device is less, the applicability for lathe is stronger.This is driven by two piezoelectric stacks, what take is non-resonant mode, elliptic parameter can carry out by piezoelectric stack drive singal the position adjusting space ellipse, two piezoelectric stacks drive and drive independently flexible hinge respectively, there is not coupling each other, the control accuracy that integral type elliptical vibration cutting flexible apparatus in parallel is higher can be realized.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model integral hinge matrix in parallel.
Detailed description of the invention
Piezoelectric stack 1 is connected with integral hinge matrix 1 in parallel by the pre-loading screw 1 be arranged on hole 5 105, piezo stack two heap 10 is connected with integral hinge matrix 1 in parallel by the pre-loading screw 28 be arranged on hole 4 104, displacement measurement baffle plate 1 is arranged on the hole 7 107 of integral hinge matrix 1 in parallel by trip bolt, displacement measurement baffle plate 2 12 is arranged on the hole 2 102 of integral hinge matrix 1 in parallel by trip bolt, capacitive displacement transducer 1 and capacitive displacement transducer 29 respectively correspondence are arranged on displacement transducer holder 1 and displacement transducer holder 27, on the hole 6 106 that displacement transducer holder 1 and displacement transducer holder 27 are arranged on integral hinge matrix 1 in parallel respectively by trip bolt and hole 3 103, diamond cutter 13 is arranged on integral hinge matrix 1 front end in parallel by trip bolt, be fixed on hole 8 108 by trip bolt.
The mode that the utility model integral hinge matrix 1 in parallel adopts time processing shaping is processed.
On the utility model integral hinge matrix 1 in parallel, two parallel flexible hinges all adopt rectangular hinge, and become parallelogram to arrange between four subbranches comprised in single hinge, form single-degree-of-freedom closed system, capacitive displacement transducer 1, capacitive displacement transducer 29 forms by the displacement of detecting position shift measurement baffle plate 2 and displacement measurement baffle plate 12 closed-loop control that piezoelectric stack drives.
The utility model integral hinge matrix 1 in parallel is fixedly connected with force snesor 14 by 4 hole 1 screws 11, and force snesor 14 is fixed on vertical machine guide rail by trip bolt.
Force snesor 14 of the present utility model is mainly used in each component gathering main cutting force in working angles, and then FEEDBACK CONTROL adjusts each cutting parameter, realizes the further optimization of cutting force.
Working method of the present utility model is as follows:
1. the utility model trip bolt is arranged on the guide rail of numerically controlled lathe, drive to respectively two piezoelectric stacks and apply drive control signal, by the parameter (amplitude of adjustment piezoelectric stack drive singal, frequency and phase angle), obtain diamond point of a knife elliptic ideal track, thus generate the principal cutting movement of elliptical vibration cutting.
2, by needing the clamping workpiece of processing on the main shaft of lathe, realizing workpiece rotary feed campaign by the revolution of main shaft and the motion of guide rail, being gathered the transient state corner of main shaft by revolution grating.
3. by a capacitive displacement transducer, detect the displacement of two displacement measurement baffle plates on parallel elliptical vibration truning fixture, namely obtaining the actual displacement of piezoelectric stack, by the data feedback that collects in controller, revising actual output displacement by compensating.
4. by a force snesor, Real-time Collection is carried out to the power of each component, by the data feedback that collects in high performance controller, optimize cutting force further by adjustment cutting parameter.
5. by a controller, to realize detecting the transient Displacements of angle of eccentricity detection, two piezoelectric stacks, the tracing control of the detection of each component values of cutting force and elliptical trajectory.
Claims (4)
1. one kind is suitable for the parallel elliptical vibration truning fixture of vertical Excircle machining, it is characterized in that: piezoelectric stack one is connected with integral hinge matrix in parallel by the pre-loading screw one be arranged on hole five, piezo stack two heap is connected with integral hinge matrix in parallel by the pre-loading screw two be arranged on Kong Si, displacement measurement baffle plate one is arranged on the hole seven of integral hinge matrix in parallel by trip bolt, displacement measurement baffle plate two-way is crossed trip bolt and is arranged on the hole two of integral hinge matrix in parallel, capacitive displacement transducer one and capacitive displacement transducer two respectively correspondence are arranged on displacement transducer holder one and displacement transducer holder two, on the hole six that displacement transducer holder one and displacement transducer holder two are arranged on integral hinge matrix in parallel respectively by trip bolt and hole three, diamond cutter is arranged on integral hinge matrix front end in parallel by trip bolt, be fixed on hole eight by trip bolt.
2. a kind of parallel elliptical vibration truning fixture being suitable for vertical Excircle machining according to claim 1, is characterized in that: described integral hinge matrix in parallel adopts the shaping mode of time processing to process.
3. a kind of parallel elliptical vibration truning fixture being suitable for vertical Excircle machining according to claim 1, it is characterized in that: on described integral hinge matrix in parallel, two parallel flexible hinges all adopt rectangular hinge, and become parallelogram to arrange between four subbranches comprised in single hinge, form single-degree-of-freedom closed system.
4. a kind of parallel elliptical vibration truning fixture being suitable for vertical Excircle machining according to claim 1, is characterized in that: described integral hinge matrix passing hole one in parallel is fixedly connected with force snesor with screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520770814.3U CN204997078U (en) | 2015-10-03 | 2015-10-03 | Be suitable for parallel elliptical vibration turning device of vertical excircle processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520770814.3U CN204997078U (en) | 2015-10-03 | 2015-10-03 | Be suitable for parallel elliptical vibration turning device of vertical excircle processing |
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| Publication Number | Publication Date |
|---|---|
| CN204997078U true CN204997078U (en) | 2016-01-27 |
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|---|---|---|---|
| CN201520770814.3U Expired - Fee Related CN204997078U (en) | 2015-10-03 | 2015-10-03 | Be suitable for parallel elliptical vibration turning device of vertical excircle processing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127452A (en) * | 2015-10-03 | 2015-12-09 | 长春工业大学 | Parallel-type oval vibration turning device applicable to vertical type excircle machining |
| CN106312658A (en) * | 2016-08-30 | 2017-01-11 | 厦门麦科普睿科技有限公司 | Inner arc surface processing device |
-
2015
- 2015-10-03 CN CN201520770814.3U patent/CN204997078U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127452A (en) * | 2015-10-03 | 2015-12-09 | 长春工业大学 | Parallel-type oval vibration turning device applicable to vertical type excircle machining |
| CN106312658A (en) * | 2016-08-30 | 2017-01-11 | 厦门麦科普睿科技有限公司 | Inner arc surface processing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20181003 |