CN110681877B - Parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device - Google Patents
Parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device Download PDFInfo
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- CN110681877B CN110681877B CN201910938728.1A CN201910938728A CN110681877B CN 110681877 B CN110681877 B CN 110681877B CN 201910938728 A CN201910938728 A CN 201910938728A CN 110681877 B CN110681877 B CN 110681877B
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- 230000005284 excitation Effects 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 11
- 238000003754 machining Methods 0.000 claims description 9
- 230000010355 oscillation Effects 0.000 claims description 5
- 239000002131 composite material Substances 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
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- 229910045601 alloy Inorganic materials 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B3/00—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
- B23B3/06—Turning-machines or devices characterised only by the special arrangement of constructional units
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Abstract
A parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device comprises a base, an ultrasonic excitation device and a flexible hinge assembly, wherein a rib plate I is fixedly installed at one end of the upper surface of the base through a bolt, the vertical part of the rib plate I is connected with one end of a vertical plate through a bolt, the other end of the vertical plate is connected with two rib plates II through bolts, the horizontal parts of the two rib plates II are connected with a bearing plate through bolts, the ultrasonic excitation device is fixedly installed on the bearing plate through a clamping sleeve and the bolts, and the ultrasonic excitation device is connected with the flexible hinge assembly; under the excitation of ultrasonic high-frequency vibration, the turning tool is driven to rotate in the horizontal plane, and meanwhile, certain displacement is generated in the vertical plane along the direction of the ultrasonic amplitude transformer, so that a single excitation form replaces a three-excitation form to convert one-dimensional ultrasonic vibration generated by the ultrasonic excitation device into three-dimensional curved surface type composite ultrasonic vibration for ultrasonic-assisted turning.
Description
Technical Field
The invention belongs to the technical field of composite ultrasonic vibration cutting, and particularly relates to a parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device.
Technical Field
In recent years, a series of difficult-to-process materials such as high temperature alloys, composite materials, etc. have been widely used in production and life due to their unique advantages. In addition, the machining quality requirements of industries such as aerospace, military industry and the like on precision parts are increasingly improved, and the traditional machining mode can not meet the requirements. In response to the problem, many scholars and experts have proposed a variety of special processing techniques, and the ultrasonic processing technique is one of the commonly used special processing techniques.
The ultrasonic processing is processing performed when a workpiece is subjected to microscopic local impact, so that materials with higher hardness are more suitable for ultrasonic processing, the problem of processing parts of materials difficult to process and non-metallic materials can be well solved, and the processing range is wide. In the processing process, the tool and the workpiece do not need to do complex relative motion, and various complex molded surfaces and cavities can be processed, so that the ultrasonic processing equipment has a relatively simple structure and is convenient to maintain and operate. In addition, the removal of the machining material is achieved by instantaneous local impact of extremely fine abrasive particles, so that the cutting force generated on the surface of the workpiece is small, the cutting stress and the cutting heat are low, no deformation is caused, the workpiece precision is high, the cutter durability is high, the productivity is high, and the method can be used for machining parts with high surface quality requirements.
The ultrasonic-assisted turning is one of ultrasonic processing, has the advantages of reducing cutting force and cutting heat, improving processing efficiency and the like compared with common turning, and can also improve the surface quality and the dimensional accuracy of a workpiece. The existing ultrasonic auxiliary turning device is mainly used for one-dimensional and two-dimensional elliptical ultrasonic vibration turning, and the three-dimensional curved surface ultrasonic vibration auxiliary turning can further improve the machining precision of a workpiece, reduce the surface roughness of the workpiece, effectively reduce the cutting force, increase the material removal rate, prolong the service life of a cutter and obviously improve the machining efficiency.
The common turning can not reach the required precision, and can not cut the difficult-to-machine materials. The existing multi-dimensional ultrasonic turning scheme of the same type has a complex structure, is inconvenient to control and is difficult to meet practical requirements. There is a need to devise a more reasonable and practical solution to these problems.
Disclosure of Invention
The invention provides a parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device, aiming at the problems in the prior art, the device combines an ultrasonic excitation device and a parallel and spiral groove combined type pressing and twisting device, and utilizes the characteristic that a parallel branch chain and a spiral groove deform when being pressed, so that a turning tool rotates in a horizontal plane and simultaneously generates certain displacement in a vertical plane along the direction of an ultrasonic amplitude transformer, thereby converting one-dimensional ultrasonic vibration generated by the ultrasonic excitation device into three-dimensional curved surface composite ultrasonic vibration for ultrasonic auxiliary turning. The device replaces three excitation forms with single excitation form and realizes carrying out supplementary lathe work of supersound to three-dimensional curved surface, therefore the device mechanism is simple exquisite, easily makes the assembly, and convenient operation is convenient for improve supplementary lathe work precision of ultrasonic vibration, and easily realizes the modularization production.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a turning device is assisted to three-dimensional curved surface supersound of parallelly connected and helicla flute combination formula list excitation, includes base, ultrasonic excitation device, riser, flexible hinge subassembly, base upper surface one end has floor I through bolt fixed mounting, and floor I is two, and the vertical part of floor I links to each other with riser one end through the bolt, and the riser other end passes through the bolt and links to each other with two floor II, and the horizontal part of two floor II passes through the bolt and links to each other with the bearing plate, ultrasonic excitation device passes through the clamp sleeve and bolt fixed mounting on the bearing plate, ultrasonic excitation device links to each other with flexible hinge subassembly.
The flexible hinge assembly comprises an upper cover plate, a torsion cylinder and flexible hinges, the upper cover plate is connected with one end of the torsion cylinder through a bolt, and the flexible hinges are uniformly arranged on the end face of the other end of the torsion cylinder along the circumferential direction.
The flexible hinges are four groups, each group is composed of an upper hinge and a lower hinge, the upper hinge and the lower hinge are fixedly installed through hexagon socket head cap screws and nuts, the upper hinge is the same as the lower hinge in structure and composed of an inclined plate, a horizontal plate I, a horizontal plate II and bolt holes, one end of the inclined plate and the horizontal plate I are integrally milled and formed, the other end of the inclined plate and the horizontal plate II are integrally milled and formed, and two bolt holes are machined in the diagonal direction of the horizontal plate I and in the length direction of the horizontal plate II.
The torsion cylinder comprises an upper flange plate, a lower flange plate and a cylinder, the torsion cylinder is connected with the upper cover plate through the upper flange plate and a bolt, a spiral groove is machined in the cylinder along the axial direction, the axis of the spiral groove and the axis of the cylinder are arranged in a collinear mode, the upper flange plate and one end of the cylinder are integrally cast and formed, and the other end of the cylinder and the lower flange plate are integrally cast and formed; and a connecting convex handle is integrally formed on the outer circular surface of the lower flange plate, and the connecting convex handle and the tool rest are fixedly connected by two groups of bolts.
The upper cover plate is provided with a threaded hole and a fan-shaped hole along the circumferential direction, the fan-shaped hole is arranged close to the center of the threaded hole, and a through hole matched with the connector is processed in the center of the upper cover plate.
The ultrasonic excitation device comprises an ultrasonic generator, an ultrasonic transducer, an amplitude transformer and a connector, wherein the ultrasonic generator is connected with one end of the ultrasonic transducer, the other end of the ultrasonic transducer is connected with one end of the amplitude transformer, the other end of the amplitude transformer is connected with the connector, positioning clamping nuts are arranged on the connector, and the number of the positioning clamping nuts is two.
A use method of a parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device adopts the parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device, and comprises the following steps:
and 3, because the tool rest is arranged on the connecting convex handle at the bottom of the torsion cylinder, the tool rest and the turning tool can jointly perform three-dimensional curved surface type ultrasonic vibration along with the torsion cylinder, so that the turning tool forms a motion track of a three-dimensional curved surface during cutting, and further the parallel connection and spiral groove combined type single excitation three-dimensional curved surface ultrasonic auxiliary turning machining is realized.
The invention has the beneficial effects that:
1. the ultrasonic auxiliary turning device realizes the conversion of one-dimensional ultrasonic vibration to three-dimensional ultrasonic auxiliary turning, utilizes the characteristic that the parallel branch chain and the spiral groove deform when being pressed, deforms in the vertical direction when being excited by ultrasonic high-frequency vibration, and also twists on the horizontal plane, further drives the turning tool to generate certain vertical vibration along the direction of the ultrasonic amplitude transformer in the vertical direction, and simultaneously generates arc-shaped rotary motion in the horizontal plane, namely, the parallel and spiral groove combined pressing and twisting device converts the one-dimensional ultrasonic vibration generated by the ultrasonic excitation device into the three-dimensional curved surface ultrasonic vibration, thereby realizing the three-dimensional curved surface motion of the turning tool only by single excitation and carrying out ultrasonic auxiliary turning; the amplitude and the vibration frequency of the ultrasonic excitation device, the length, the thickness and other dimensional factors of the parallel branched chains are actively adjusted, so that different track changes of the three-dimensional curved surface motion of the turning tool can be realized, and different processing conditions and processing requirements can be met.
2. Compared with the existing part of three-dimensional curved surface ultrasonic auxiliary turning device, the invention has the advantages of simple structure, convenient operation, easy manufacture and assembly, easy formation of modularization and the like under the condition of ensuring the same processing effect, and is the development trend of the future three-dimensional curved surface ultrasonic auxiliary turning.
3. The invention has simple structure and few parts, so the process requirements in the manufacturing, mounting, assembling and other processes are from complex to simple compared with the prior devices with the same function, thereby not only improving the processing efficiency, but also effectively reducing the generation and accumulation of errors in the processes on the premise of ensuring the form and position precision and the size precision of key parts, thereby improving the turning processing precision in the aspect of preprocessing.
Drawings
FIG. 1 is a structural three-dimensional schematic diagram of a parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device of the invention;
FIG. 2 is an exploded view of an assembly structure of the parallel and spiral groove combined single-excitation three-dimensional curved surface ultrasonic auxiliary turning device of the invention;
FIG. 3 is a three-dimensional schematic view of the parallel and spiral groove combined type pressing and turning device structure of the parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device of the invention;
FIG. 4 is a three-dimensional schematic view of an ultrasonic excitation device structure of the parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device of the invention;
FIG. 5 is a schematic view of a torsional cylinder part of a parallel and spiral groove combined single-excitation three-dimensional curved surface ultrasonic auxiliary turning device;
FIG. 6 is an exploded view of a flexible hinge assembly part of the parallel and spiral groove combined single excitation three-dimensional curved surface ultrasonic assisted turning device;
1-ultrasonic transducer, 2-amplitude transformer, 3-connector, 4-clamping sleeve, 5-bearing plate, 6-ribbed plate I, 7-vertical plate, 8-ribbed plate II, 9-base, 10-positioning clamping nut, 11-upper cover plate, 12-torsion cylinder, 13-tool rest, 14-turning tool, 15-upper hinge, 16-lower hinge, 17-upper flange plate, 18-lower flange plate, 19-cylinder, 20-inclined plate, 21-horizontal plate I, 22-horizontal plate II, 23-spiral groove, 24-inner hexagon screw, 25-nut and 26-connecting convex handle.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 to 3, a combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device with parallel connection and spiral grooves comprises a base 9, an ultrasonic excitation device, a vertical plate 7 and a flexible hinge assembly, wherein one end of the upper surface of the base 9 is fixedly provided with a ribbed plate I6 through a bolt, the number of the ribbed plates I6 is two, the vertical part of the ribbed plate I6 is connected with one end of the vertical plate 7 through a bolt, the other end of the vertical plate 7 is connected with two ribbed plates II 8 through bolts, the ribbed plates I6 and the ribbed plates II 8 are not only supporting structures, but also improve the structural strength, the horizontal parts of the two ribbed plates II 8 are connected with a bearing plate 5 through bolts, the ultrasonic excitation device is fixedly arranged on the bearing plate 5 through two clamping sleeves 4 in omega shape and four bolts in matching, the ultrasonic excitation device is connected with the flexible hinge assembly, so as to, the included angles between the rib plate I6 and the vertical plate 7, between the vertical plate 7 and the rib plate II 8, and between the rib plate II 8 and the base 9 are 90 degrees, so that the assembly and the inspection are convenient, the high rigidity and the high strength are provided to fully play a supporting role, the base 9, the vertical plate 7, the rib plate I6, the rib plate II 8 and the bearing plate 5 form a fixing frame, and the fixing frame adopts a symmetrical design along the length direction, so that the whole device can be stably installed on a lathe to be used conveniently.
As shown in fig. 6, the flexible hinge assembly includes an upper cover plate 11, a torsion cylinder 12 and flexible hinges, the upper cover plate 11 is connected to one end of the torsion cylinder 12 through four bolts, the flexible hinges are uniformly arranged on the end surface of the other end of the torsion cylinder 12 along the circumferential direction, and each group of flexible hinges is mounted on the torsion cylinder 12 through two bolts.
The flexible hinges are four groups, each group consists of an upper hinge 15 and a lower hinge 16, the upper hinge 15 and the lower hinge 16 are fixedly installed through two hexagon socket head screws 24 and two nuts 25, the upper hinge 15 and the lower hinge 16 are in the same structure and are in Z-shaped structures and are respectively composed of an inclined plate 20, a horizontal plate I21, a horizontal plate II 22 and bolt holes, one end of the inclined plate 20 is integrally milled with the horizontal plate I21, the other end of the inclined plate is integrally milled with the horizontal plate II 22, two bolt holes are machined in the diagonal direction of the horizontal plate I21 and the length direction of the horizontal plate II 22, the upper hinge 15 of the flexible hinge is connected with a lower flange plate 18 of the torsion cylinder 12 through bolts, and the lower hinge 16 of the flexible hinge is connected with the base 9 through bolts; the flexible hinge is used for generating three-dimensional longitudinal-torsional ultrasonic vibration under the action of the ultrasonic excitation device, and then transmitting the ultrasonic vibration to the tool rest 13 and the turning tool 14 so as to realize the three-dimensional curved surface motion trail of the turning tool 14.
As shown in fig. 5, the torsion cylinder 12 comprises an upper flange plate 17, a lower flange plate 18 and a cylinder 19, the torsion cylinder 12 is connected with the upper cover plate 11 through the upper flange plate 17 and four bolts, the cylinder 19 is axially processed with a spiral groove 23, and the axis of the spiral groove 23 is arranged in the same line with the axis of the cylinder 19, the spiral direction of the spiral groove 23 on the cylinder 19 is left-handed in the embodiment, the upper flange plate 17 and one end of the cylinder 19 are integrally cast and formed, the other end of the cylinder 19 and the lower flange plate 18 are integrally cast and formed, the cylinder 19 is arranged to convert one-dimensional ultrasonic vibration generated by the ultrasonic excitation device into ultrasonic vibration of a three-dimensional curved surface type, namely, the cylinder of the torsional cylinder 12 is deformed by the longitudinal force generated by the longitudinal ultrasonic vibration, so that the cylinder 19 generates a tangential force in a plane vertical to the direction of the longitudinal force after being compressed, and the mass of the cylinder 19 is reduced; a connecting convex handle 26 is integrally formed on the outer circumferential surface of the lower flange plate 18 for bearing the tool holder 13, and the connecting convex handle 26 and the tool holder 13 are fixedly connected by two groups of bolts so as to limit the relative movement and rotation of the tool holder 13 and the torsion cylinder 12 and ensure the processing rigidity.
The upper cover plate 11 is provided with a threaded hole and a fan-shaped hole along the circumferential direction, the fan-shaped hole is arranged close to the center compared with the threaded hole, the fan-shaped hole is used for reducing the mass of the upper cover plate 11, the load of the ultrasonic excitation device is further reduced, the threaded hole is used for fixing the relative position between the upper cover plate 11 and the torsion cylinder 12, ultrasonic vibration is transmitted to the torsion cylinder 12, and the center of the upper cover plate 11 is provided with a through hole matched with the connector 3 and used for fixing the relative position between the connectors 3 of the ultrasonic excitation device.
As shown in fig. 4, the ultrasonic excitation device includes an ultrasonic generator, an ultrasonic transducer 1, an amplitude transformer 2 and a connector 3, the ultrasonic generator is connected to one end of the ultrasonic transducer 1, the ultrasonic transducer 1 in this embodiment is a piezoelectric ceramic transducer, the other end of the ultrasonic transducer 1 is connected to one end of the amplitude transformer 2, the other end of the amplitude transformer 2 is connected to the connector 3 through a thread, the connector 3 is provided with two positioning and clamping nuts 10, the number of the positioning and clamping nuts 10 is two, and the ultrasonic excitation device is connected to the upper cover plate 11 through the connector 3 and the two clamping nuts, so that the ultrasonic vibration is transmitted to the parallel and spiral groove combined pressing and twisting device, the tool rest 13 and the turning tool 14, which are composed of the upper cover plate 11, the twisting cylinder 12, the flexible hinge assembly and; the ultrasonic excitation device is positioned by the end face of the maximum diameter position of the amplitude transformer 2 in a contact way with the upper surface of the bearing plate 5, the upper surface of the positioning part is clamped by the clamping sleeve 4 in a contact way to realize the axial position fixation of the whole ultrasonic excitation device, the radial fixation is realized by the clearance fit of the positioning shaft diameter of the amplitude transformer 2 of the ultrasonic excitation device and the aperture of the bearing plate 5, and the positioning shaft neck of the amplitude transformer 2 is the shaft neck at the lower part of the maximum diameter position of the amplitude transformer 2.
A use method of a parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device adopts the parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device, and comprises the following steps:
and 4, because the tool rest 13 is arranged on the connecting convex handle 26 at the bottom of the torsion cylinder 12, the tool rest 13 and the turning tool 14 can perform three-dimensional curved surface type ultrasonic vibration together with the torsion cylinder 12, the tool tip of the turning tool 14 not only completes one complete arc-shaped motion in a plane but also completes the up-and-down vibration of one-dimensional ultrasonic auxiliary turning processing in one vibration excitation period, so that the turning tool 14 forms a three-dimensional curved surface motion track during cutting, and further the parallel connection and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning processing is realized.
Claims (5)
1. A parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device is characterized by comprising a base, an ultrasonic excitation device, a vertical plate and a flexible hinge assembly, wherein a ribbed plate I is fixedly installed at one end of the upper surface of the base through a bolt, the number of the ribbed plates I is two, the vertical part of the ribbed plate I is connected with one end of the vertical plate through a bolt, the other end of the vertical plate is connected with two ribbed plates II through bolts, the horizontal parts of the two ribbed plates II are connected with a bearing plate through bolts, the ultrasonic excitation device is fixedly installed on the bearing plate through a clamping sleeve and the bolts, and the ultrasonic excitation device is connected with the flexible hinge;
the flexible hinge assembly comprises an upper cover plate, a torsion cylinder and flexible hinges, the upper cover plate is connected with one end of the torsion cylinder through a bolt, and the flexible hinges are uniformly arranged on the end face of the other end of the torsion cylinder along the circumferential direction;
the ultrasonic excitation device comprises an ultrasonic generator, an ultrasonic transducer, an amplitude transformer and a connector, wherein the ultrasonic generator is connected with one end of the ultrasonic transducer, the other end of the ultrasonic transducer is connected with one end of the amplitude transformer, the other end of the amplitude transformer is connected with the connector, positioning clamping nuts are arranged on the connector, and the number of the positioning clamping nuts is two.
2. The parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device of claim 1, wherein: the flexible hinges are four groups, each group is composed of an upper hinge and a lower hinge, the upper hinge and the lower hinge are fixedly installed through hexagon socket head cap screws and nuts, the upper hinge is the same as the lower hinge in structure and composed of an inclined plate, a horizontal plate I, a horizontal plate II and bolt holes, one end of the inclined plate and the horizontal plate I are integrally milled and formed, the other end of the inclined plate and the horizontal plate II are integrally milled and formed, and two bolt holes are machined in the diagonal direction of the horizontal plate I and in the length direction of the horizontal plate II.
3. The parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device of claim 1, wherein: the torsion cylinder comprises an upper flange plate, a lower flange plate and a cylinder, the torsion cylinder is connected with the upper cover plate through the upper flange plate and a bolt, a spiral groove is machined in the cylinder along the axial direction, the axis of the spiral groove and the axis of the cylinder are arranged in a collinear mode, the upper flange plate and one end of the cylinder are integrally cast and formed, and the other end of the cylinder and the lower flange plate are integrally cast and formed; and a connecting convex handle is integrally formed on the outer circular surface of the lower flange plate, and the connecting convex handle and the tool rest are fixedly connected by two groups of bolts.
4. The parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device of claim 1, wherein: the upper cover plate is provided with a threaded hole and a fan-shaped hole along the circumferential direction, the fan-shaped hole is arranged close to the center of the threaded hole, and a through hole matched with the connector is processed in the center of the upper cover plate.
5. The use method of the parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device is characterized by comprising the following steps of:
step 1, a parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device is arranged on a base through two unthreaded holes positioned at two ends of a vertical plate, the two unthreaded holes are arranged on a cutter tower of a lathe of a corresponding model, an ultrasonic generator is started, the ultrasonic generator generates an electric oscillation signal with ultrasonic frequency and transmits the electric oscillation signal to an ultrasonic transducer, the ultrasonic transducer converts an electric signal into mechanical vibration, the amplitude is amplified through an amplitude transformer, and therefore one-dimensional ultrasonic vibration is transmitted to a connecting head;
step 2, the connecting head drives the upper cover plate to perform one-dimensional ultrasonic vibration, the cylinder of the torsion cylinder connected to the lower end of the upper cover plate converts the one-dimensional ultrasonic vibration into three-dimensional curved surface type ultrasonic vibration, and meanwhile, the flexible hinge assembly connected to the lower end of the torsion cylinder also performs three-dimensional curved surface type ultrasonic vibration;
and 3, because the tool rest is arranged on the connecting convex handle at the bottom of the torsion cylinder, the tool rest and the turning tool can jointly perform three-dimensional curved surface type ultrasonic vibration along with the torsion cylinder, so that the turning tool forms a motion track of a three-dimensional curved surface during cutting, and further the parallel connection and spiral groove combined type single excitation three-dimensional curved surface ultrasonic auxiliary turning machining is realized.
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| CN201910938728.1A CN110681877B (en) | 2019-09-30 | 2019-09-30 | Parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device |
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| CN201910938728.1A CN110681877B (en) | 2019-09-30 | 2019-09-30 | Parallel and spiral groove combined type single-excitation three-dimensional curved surface ultrasonic auxiliary turning device |
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| WO2023041081A1 (en) * | 2021-09-20 | 2023-03-23 | 单保祥 | Transducer comprising flexible buckling member |
| TWI834333B (en) * | 2022-10-11 | 2024-03-01 | 國立屏東科技大學 | Vibration mechanism of turning tool |
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| CN104117697B (en) * | 2014-07-17 | 2016-04-20 | 吉林大学 | A kind of off-resonance elliptical vibration cutting device |
| CN105478332A (en) * | 2015-11-20 | 2016-04-13 | 哈尔滨工业大学 | Longitudinal-torsional resonance ultrasonic vibration device |
| CN106141761B (en) * | 2016-07-26 | 2018-02-16 | 南京航空航天大学 | The three-D ultrasonic elliptical vibration cutting device and track production method of parallel-connection structure |
| DE102016014253B4 (en) * | 2016-11-08 | 2020-10-22 | Innolite Gmbh | Ultrasonic system, method for designing an ultrasonic system |
| CN107350558B (en) * | 2017-03-02 | 2019-07-09 | 南京航空航天大学 | Umbrella parallel-connection structure three-D ultrasonic elliptical vibration cutting device and track production method |
| CN107322020B (en) * | 2017-06-21 | 2019-03-08 | 山东大学 | A kind of micro-nano technology device and processing method for the secondary antifriction that rubs |
| CN109129015A (en) * | 2018-10-16 | 2019-01-04 | 东华理工大学 | A kind of cutting force measurement system for Supersonic Vibration Turning |
| DE202018106757U1 (en) * | 2018-11-28 | 2019-02-06 | DECUTEC GmbH & Co. KG | Aggregate or tool for a CNC machining center |
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