CN108436609B - Ultrasonic knife handle - Google Patents
Ultrasonic knife handle Download PDFInfo
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- CN108436609B CN108436609B CN201810488512.5A CN201810488512A CN108436609B CN 108436609 B CN108436609 B CN 108436609B CN 201810488512 A CN201810488512 A CN 201810488512A CN 108436609 B CN108436609 B CN 108436609B
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- ultrasonic
- piezoelectric vibrator
- gland
- insulating tube
- amplitude transformer
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- 210000004907 gland Anatomy 0.000 claims abstract description 63
- 230000005540 biological transmission Effects 0.000 claims abstract description 56
- 238000009434 installation Methods 0.000 claims abstract description 12
- 239000000565 sealant Substances 0.000 claims abstract description 8
- 238000013016 damping Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 description 22
- 238000003825 pressing Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 11
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
The invention relates to an ultrasonic knife handle, comprising: the ultrasonic cutter body is connected with the main shaft of the machine tool at the first end and provided with an installation cavity at the second end; the wireless transmission transmitting device is used for being arranged on a main shaft of the machine tool and connected with the ultrasonic power supply generator; the wireless transmission receiving device is arranged on the ultrasonic knife body and is arranged corresponding to the wireless transmission transmitting device; the ultrasonic transducer comprises an amplitude transformer and a piezoelectric vibrator arranged at the first end of the amplitude transformer, and the piezoelectric vibrator is connected with the wireless transmission receiving device; the gland is arranged on one side, far away from the piezoelectric vibrator, of the assembly flange, the gland is connected with the ultrasonic cutter body, and the gland compresses the assembly flange; and the sealant is arranged between the gland and the assembly flange. The ultrasonic knife handle has the advantages of good structural performance, high processing precision and long service life.
Description
Technical Field
The invention relates to the technical field of ultrasonic machining, in particular to an ultrasonic knife handle.
Background
Ultrasonic processing is a special processing which uses ultrasonic frequency to make a tool with small vibration amplitude and gradually breaks the surface of a workpiece material through the hammering action of an abrasive material which is free in liquid between the ultrasonic processing and the workpiece on the processed surface. The common ultrasonic processing is to process products through liquid media, belongs to special processing, has small application range, cannot be used in cutting processing and grinding processing with wider range, and has complex structure and high price. Thus, a rotary ultrasonic machining mode combining ultrasonic machining with tool rotation is increasingly used.
Generally, an ultrasonic tool holder for general ultrasonic machining is an integrated type, and is mainly used as a connecting piece between a machine tool spindle and a cutting tool, and has no other function than rigidly connecting the machine tool spindle and the cutting tool. To accommodate rotary ultrasonic machining, ultrasonic tool shanks have been developed in which a vibration system is integrated into the ultrasonic tool body. However, the traditional ultrasonic knife handle integrated with the vibration system is not stable enough in structure, and the amplitude transformer is easy to incline after collision, so that the circle runout of the amplitude transformer is enlarged, the dynamic balance of the amplitude transformer is affected, the processing precision of the ultrasonic knife handle is poor, and the service life is short.
Disclosure of Invention
Based on the above, it is necessary to provide an ultrasonic knife handle which has good structural performance, high processing precision and long service life.
The technical scheme is as follows:
an ultrasonic blade handle, comprising:
the ultrasonic cutter body is connected with the main shaft of the machine tool at the first end and provided with an installation cavity at the second end;
the wireless transmission transmitting device is used for being arranged on a main shaft of the machine tool and connected with the ultrasonic power supply generator;
the wireless transmission receiving device is arranged on the ultrasonic knife body and is arranged corresponding to the wireless transmission transmitting device;
the ultrasonic transducer comprises an amplitude transformer and a piezoelectric vibrator arranged at the first end of the amplitude transformer, the second end of the amplitude transformer is used for being connected with a cutting tool, the first end of the amplitude transformer is provided with an assembly flange, the amplitude transformer is connected with the second end of the ultrasonic cutter body through the assembly flange, and the piezoelectric vibrator is positioned in the installation cavity;
the gland is arranged on one side, far away from the piezoelectric vibrator, of the assembly flange, the gland is connected with the ultrasonic cutter body, and the gland compresses the assembly flange; and
and the sealant is arranged between the gland and the assembly flange.
Above-mentioned ultrasonic knife handle, the ultrasonic knife body is used for playing the effect of connecting parts such as lathe main shaft, installation ultrasonic transducer, wireless transmission emitter is used for passing the high frequency electric energy signal that ultrasonic power generator produced to wireless transmission receiving arrangement on, wireless transmission receiving arrangement is used for receiving the signal that wireless transmission emitter sent and with the signal that senses reduction to high frequency electric energy signal, the transmission is for ultrasonic transducer, ultrasonic transducer is used for utilizing the piezoelectricity inverse effect of piezoelectricity oscillator to convert the frequency electric signal into high frequency mechanical vibration, and amplify the transmission to the processing work piece through the amplitude transformer to mechanical vibration, and then can cooperate traditional ordinary lathe to realize ultrasonic processing. The ultrasonic knife handle can be applied to a traditional common machine tool, ultrasonic processing is carried out under the condition that the structure of the common machine tool is not changed, the ultrasonic transducer is connected with the ultrasonic knife body through the assembly flange of the amplitude transformer, the gland is arranged, the pressure of the assembly flange of the amplitude transformer can be applied to the assembly flange of the amplitude transformer, the assembly flange and the ultrasonic knife body are combined more tightly, the structural strength of a product is enhanced, and further, the sealing glue is arranged between the gland and the assembly flange, so that the gap among the gland, the amplitude transformer and the ultrasonic knife body can be filled up, the structural strength of the product is further enhanced, waterproof protection is formed, the piezoelectric effect of the piezoelectric vibrator is prevented from being damaged by seepage entering the inner cavity of the installation cavity of the ultrasonic knife body, the ultrasonic knife handle has good structural performance, the amplitude transformer is not easy to incline after falling down or collision, the circular runout and dynamic balance of the amplitude transformer are not easy to be affected, the processing precision is high, and the service life is long.
Further, the gland is of a hollow structure with two open ends, the inner wall of the gland is used for being matched with the assembling surface of the amplitude transformer, an assembling thread matched with the assembling surface of the cutter body is arranged on the outer wall of one side of the gland, a cover body part corresponding to the assembling thread on the gland is a pressing part, the pressing part is used for pressing the assembling flange, the other side of the gland body is a force application part, and the gland body is a cutting part between the pressing part and the force application part.
Further, the ultrasonic transducer further comprises a cover plate, a locking bolt and a heat-shrinkable insulating tube, a threaded hole matched with the locking bolt is formed in the end face of the first end of the amplitude transformer, a mounting hole is formed in the piezoelectric vibrator, the cover plate is arranged on one side, far away from the amplitude transformer, of the piezoelectric vibrator, a fixing hole is formed in the cover plate, the locking bolt is used for penetrating through the fixing hole and the mounting hole to be matched with the threaded hole, the piezoelectric vibrator and the cover plate are locked on the amplitude transformer, and the heat-shrinkable insulating tube is arranged between the locking bolt and the piezoelectric vibrator and between the locking bolt and the cover plate.
Further, the heat-shrinkable insulating tube comprises a first insulating tube and a second insulating tube, the length of the first insulating tube is matched with the sum of the lengths of the piezoelectric vibrator and the cover plate, the first insulating tube is sleeved on the outer side of the locking bolt, the mounting position of the first insulating tube corresponds to the positions of the piezoelectric vibrator and the cover plate, the length of the second insulating tube is matched with the length of the piezoelectric vibrator, the second insulating tube is sleeved on the outer side of the first insulating tube, and the mounting position of the second insulating tube corresponds to the position of the piezoelectric vibrator.
Further, wireless transmission emitter includes transmission ring support, transmission magnetic core and transmitting coil, be equipped with the cutter body through-hole on the transmission ring support, be equipped with first mounting groove on the transmission ring support in the periphery of cutter body through-hole, still be equipped with the pilot hole on the transmission ring support the periphery of first mounting groove, the pilot hole is used for cooperating with the support mounting hole on the non-rotatory terminal surface of lathe main shaft, the transmission magnetic core is installed in the first mounting groove, be equipped with the second mounting groove on the transmission magnetic core, the transmitting coil sets up in the second mounting groove.
Further, the assembly holes are strip-shaped assembly holes.
Further, the wireless transmission receiving device comprises a receiving ring support, a receiving magnetic core and a receiving coil, wherein the receiving ring support is sleeved on the outer side of the ultrasonic knife body, a third mounting groove is formed in the receiving ring support, the receiving magnetic core is mounted in the third mounting groove, a fourth mounting groove is formed in the receiving magnetic core, and the receiving coil is mounted in the fourth mounting groove.
Further, a positioning boss is arranged on the outer wall of the ultrasonic knife body and used for positioning the wireless transmission receiving device.
Further, the side surface of the assembly flange, which is close to the piezoelectric vibrator, is a first side surface, the side surface of the assembly flange, which is far away from the piezoelectric vibrator, is a second side surface, an annular groove is formed in the first side surface, the annular groove is located at the joint of the outer edge of the piezoelectric vibrator and the amplitude transformer, and a vibration reduction hole is formed in the second side surface.
Further, a spiral groove or a curve groove is arranged on the outer wall of the amplitude transformer.
Drawings
FIG. 1 is a schematic view of an ultrasonic tool holder according to an embodiment of the present invention;
FIG. 2 is a front view of an ultrasonic blade handle according to one embodiment of the present invention;
FIG. 3 is a cross-sectional view of the ultrasonic blade handle of FIG. 2;
FIG. 4 is a schematic view of an ultrasonic blade according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of the ultrasonic blade handle of FIG. 4;
fig. 6 is a schematic structural diagram of a wireless transmission transmitting device according to an embodiment of the invention;
fig. 7 is a schematic structural diagram of a wireless transmission receiving device according to an embodiment of the invention;
FIG. 8 is a schematic view of a gland according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of an ultrasonic transducer according to an embodiment of the present invention;
FIG. 10 is a cross-sectional view of the ultrasonic transducer of FIG. 9;
FIG. 11 is a schematic diagram illustrating an explosion structure of an ultrasonic transducer according to an embodiment of the present invention;
FIG. 12 is a cross-sectional view of the heat shrinkable insulating tube of FIG. 11;
FIG. 13 is a schematic view of the horn according to one embodiment of the present invention;
fig. 14 is a cross-sectional view of the horn of fig. 13.
Reference numerals illustrate:
100. an ultrasonic blade body, 110, a mounting cavity, 111, a gland mounting cavity, 112, a flange mounting cavity, 113, a piezoelectric vibrator mounting cavity, 120, a positioning boss, 130, a wire passing hole, 140, an electrode avoiding groove, 200, a wireless transmission transmitting device, 210, a transmitting ring bracket, 211, a blade body penetrating hole, 212, a first mounting groove, 213, a mounting hole, 215, a plug mounting surface, 216, a wiring channel, 220, a transmitting magnetic core, 221, a second mounting groove, 222, a first wiring opening, 230, a transmitting coil, 300, a wireless transmission receiving device, 310, a receiving ring bracket, 311, a third mounting groove, 312, a second wiring opening, 320, a receiving magnetic core, 321, a fourth mounting groove, 322, a third wiring opening, 330, a receiving coil, 400, an ultrasonic transducer, 410, amplitude transformer, 411, assembly flange, 412, annular groove, 413, vibration damping hole, 414, spiral groove, 415, screw hole, 420, piezoelectric vibrator, 421, mounting hole, 422, first piezoelectric ceramic piece, 423, first electrode piece, 424, second piezoelectric ceramic piece, 425, second electrode piece, 426, third piezoelectric ceramic piece, 427, third electrode piece, 428, fourth piezoelectric ceramic piece, 429, fourth electrode piece, 430, cover plate, 431, fixing hole, 440, locking bolt, 441, nut, 442, assembly side, 443, screw, 450, heat-shrinkable insulating tube, 451, first insulating tube, 452, second insulating tube, 500, gland, 510, pressing part, 512, assembly screw, 520, force application part, 522, force application flange, 530, cutting part, 532, withdrawal groove.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items. The terms "first," "second," and the like, as used herein, are used herein to distinguish between objects, but the objects are not limited by these terms.
As shown in fig. 1, 2, 3, and 6, an embodiment provides an ultrasonic blade handle, including:
the ultrasonic knife body 100 is provided with a first end for being connected with a main shaft of a machine tool and a second end provided with a mounting cavity 110;
the wireless transmission transmitting device 200 is used for being arranged on a machine tool spindle and connected with an ultrasonic power supply generator;
the wireless transmission receiving device 300 is installed on the ultrasonic knife body 100 and is arranged corresponding to the wireless transmission transmitting device 200;
an ultrasonic transducer 400, comprising a horn 410 and a piezoelectric vibrator 420 arranged at a first end of the horn 410, wherein a second end of the horn 410 is used for being connected with a cutting tool, the first end of the horn 410 is provided with an assembly flange 411, the horn 410 is connected with a second end of the ultrasonic blade body 100 through the assembly flange 411, the piezoelectric vibrator 420 is positioned in the installation cavity 110, and the piezoelectric vibrator 420 is connected with the wireless transmission receiving device 300;
a pressing cover 500 disposed at a side of the assembly flange 411 away from the piezoelectric vibrator 420, the pressing cover 500 being connected to the ultrasonic blade body 100, and the pressing cover 500 pressing the assembly flange 411; and
a sealant (not shown) is disposed between the gland 500 and the mounting flange 411.
Above-mentioned ultrasonic knife handle, ultrasonic knife body 100 are used for playing the effect of connecting parts such as lathe main shaft, installation ultrasonic transducer 400, wireless transmission emitter 200 is used for transmitting the high frequency electric energy signal that ultrasonic power generator produced to wireless transmission receiver 300 through wireless transmission's mode, wireless transmission receiver 300 is used for receiving the signal that wireless transmission emitter 200 sent and restore the signal of sensing into high frequency electric energy signal and transmit for ultrasonic transducer 400, ultrasonic transducer 400 is used for utilizing the piezoelectricity inverse effect of piezoelectricity oscillator 420 to convert the frequency electric signal into high frequency mechanical vibration, and amplify the transmission to the processing work piece through amplitude transformer 410, and then can cooperate the conventional general lathe to realize ultrasonic processing. The ultrasonic knife handle can be applied to a traditional common machine tool, ultrasonic processing is carried out under the condition that the structure of the common machine tool is not changed, the ultrasonic transducer 400 is connected with the ultrasonic knife body 100 through the assembly flange 411 of the amplitude transformer 410, the gland 500 is arranged to enable the assembly flange 411 of the amplitude transformer 410 to be pressurized, the assembly flange 411 and the ultrasonic knife body 100 are combined more tightly, the structural strength of a product is enhanced, and furthermore, the sealing glue is arranged between the gland 500 and the assembly flange 411, so that the gap among the gland 500, the amplitude transformer 410 and the ultrasonic knife body 100 can be filled with the sealing glue, the structural strength of the product is further enhanced, waterproof protection is formed, the piezoelectric effect of the piezoelectric vibrator 420 is prevented from being damaged by the seepage of water into the inner cavity of the installation cavity 110 of the ultrasonic knife body 100, the ultrasonic knife handle has good structural performance, the circular runout and dynamic balance of the amplitude transformer 410 are not easily affected after the product falls down or collides, the processing precision is high, and the service life is long.
Specifically, when the sealant is disposed, after the assembly flange 411 and the ultrasonic blade body 100 are assembled, the sealant can be coated on the side surface of the assembly flange 411 away from the piezoelectric vibrator 420, and the gland 500 is assembled before the sealant is not dried, so that the sealant fills up the gaps among the gland 500, the amplitude transformer 410 and the ultrasonic blade body 100.
Further, as shown in fig. 3 and 4, a positioning boss 120 is disposed on an outer wall of the ultrasonic blade body 100, and the positioning boss 120 is used for positioning the wireless transmission receiving device 300. Through set up location boss 120 on the outer wall of ultrasonic wave cutter body 100, the position of location boss 120 can be set up in advance according to the design demand, and when wireless transmission receiving arrangement 300 was installed on ultrasonic wave cutter body 100, location boss 120 can play the effect of installation location, and wireless transmission receiving arrangement 300 can direct mount in location boss 120 department can, need not to adjust the mounted position repeatedly, simple to operate, easy operation, installation effectiveness is high.
In this embodiment, the positioning boss 120 is an annular boss disposed along the circumferential direction of the cutter body. Generally, the wireless transmission receiving device 300 is annular in appearance, and by adopting the annular boss, on one hand, the annular boss can play a better positioning and limiting role on an assembly position of the wireless transmission receiving device 300 when the wireless transmission receiving device 300 is installed, and the positioning effect is good; on the other hand, the ultrasonic blade 100 of the present embodiment is made to have good integrity.
As shown in fig. 3 and 5, the mounting cavity 110 includes a gland mounting cavity 111, a flange mounting cavity 112, and a piezoelectric vibrator mounting cavity 113, which are sequentially and communicatively disposed along the outer end of the ultrasonic blade 100 in the inward direction. The gland assembly cavity 111, the flange assembly cavity 112, and the piezoelectric vibrator assembly cavity 113 form a stepped cavity structure. In this way, the flange assembling cavity 112, the piezoelectric vibrator assembling cavity 113 and the gland assembling cavity 111 of the mounting cavity 110 can be used for correspondingly mounting the assembling flange 411, the piezoelectric vibrator 420 and the gland 500 of the amplitude transformer 410, and each cavity adopts a stepped cavity structure from outside to inside, so that the positioning assembly of each component is facilitated, and the assembly is convenient.
In this embodiment, the ultrasonic blade body 100 is provided with locking threads on the inner wall corresponding to the gland assembly cavity 111, so as to be convenient for being in threaded engagement with the gland 500, thereby realizing the assembly of the gland 500. Further, a wire through hole 130 is formed on the outer wall of the ultrasonic blade 100 and is communicated with the piezoelectric vibrator assembly cavity 113. In this way, the via 130 facilitates the connection between the positive and negative electrodes of the piezoelectric vibrator 420 and the receiving coil 330 of the wireless transmission receiving apparatus 300. Further, an electrode avoiding groove 140 is formed in an inner wall of the ultrasonic blade body 100 corresponding to the piezoelectric vibrator assembly cavity 113, and the electrode avoiding groove 140 is disposed along the axial direction of the ultrasonic blade body 100. In this way, the electrode avoiding groove 140 can avoid the electrode lug of the piezoelectric vibrator 420, and prevent the electrode lug of the piezoelectric vibrator 420 from being damaged by extrusion to affect the usability.
Further, as shown in fig. 6, the wireless transmission transmitting device 200 includes a transmitting ring bracket 210, a transmitting magnetic core 220, and a transmitting coil 230. The transmitting ring support 210 is provided with a cutter body through hole 211. The transmitting ring support 210 is provided with a first mounting groove 212 at the periphery of the cutter body through hole 211. The transmitting ring bracket 210 is further provided with an assembly hole 213 at the periphery of the first mounting groove 212, and the assembly hole 213 is used for matching with a bracket mounting hole on a non-rotating end surface of a machine tool spindle. The transmitting core 220 is mounted in the first mounting slot 212. The transmitting core 220 is provided with a second mounting groove 221, and the transmitting coil 230 is disposed in the second mounting groove 221. With the above structure, the transmitting magnetic core 220 and the transmitting coil 230 can be mounted on the machine tool spindle through the transmitting ring bracket 210, the cutter body through hole 211 of the transmitting ring bracket 210 is used for connecting the ultrasonic cutter body 100 with the machine tool spindle, the transmitting ring bracket 210 can penetrate the assembly hole 213 and the bracket mounting hole through the fastener to realize connection with the machine tool spindle, the transmitting ring bracket 210 of the embodiment has the functions of connecting the machine tool spindle, carrying the transmitting magnetic core 220 and the transmitting coil 230 and facilitating the passage of the ultrasonic cutter body 100, and is of an integral structure, compared with the structure of the traditional split locking ring and the transmitting ring, the transmitting ring bracket 210 is connected with the machine tool spindle only by screwing the fastener, the locking is convenient, the inclination or rotation is not easy to occur when the ultrasonic cutter body 100 is acted by external force after the locking, the fixing is firm, and the condition of the ultrasonic cutter body 100 is not easy to interfere. Optionally, the transmitting core 220 is a transmitting ferrite.
In this embodiment, the side surface of the transmitting ring bracket 210 for mounting the plug is a plug mounting surface 215. The inside wiring passageway 216 that is equipped with of the transmission ring support 210, the one end of wiring passageway 216 with first mounting groove 212 intercommunication, the other end of wiring passageway 216 runs through plug mounting face 215. The second mounting groove 221 is provided with a first connection port 222 on an outer groove wall far away from the cutter body through hole 211. With the above structure, the wiring of the transmitting coil 230 can penetrate out of the plug mounting surface 215 of the transmitting ring bracket 210 through the first wiring port 222 and the wiring channel 216, and then the wiring is connected with the plug to realize connection with the ultrasonic power source generator, and the wiring is internally wired, so that the operation is convenient, and the wiring can be effectively protected.
Further, the assembly hole 213 is a bar-shaped assembly hole. Thus, the transmitting ring bracket 210 of the present embodiment is applicable to machine tool spindles of different types, and when the positions of the bracket mounting holes 421 on the non-rotating end surfaces of different machine tool spindles are different, the transmitting ring bracket can be adapted by assembling the fastening members at different positions of the strip-shaped assembly holes 213, so that the transmitting ring bracket is good in universality and convenient to operate. Alternatively, two assembly holes 213 are provided, and the two assembly holes 213 are uniformly spaced along the circumferential direction of the cutter body through hole 211. Thus, the assembly is reliable and the universality is good.
Further, as shown in fig. 7, the wireless transmission receiving apparatus 300 includes a receiving ring bracket 310, a receiving core 320, and a receiving coil 330. The receiving ring support 310 is sleeved on the outer side of the ultrasonic blade body 100. The receiving ring bracket 310 is provided with a third mounting groove 311, and the receiving magnetic core 320 is mounted in the third mounting groove 311. The receiving core 320 is provided with a fourth mounting groove 321, and the receiving coil 330 is mounted in the fourth mounting groove 321. With the above structure, the receiving core 320 and the receiving coil 330 can be mounted on the ultrasonic blade body 100 through the receiving ring bracket 310, and the receiving core 320 can be induced with the transmitting core 220 of the wireless transmitting device 200, thereby playing a role of wireless receiving, and restoring the induced magnetic field into a high-frequency electric energy signal to be transmitted to the piezoelectric vibrator 420. Optionally, the receiving core 320 is a receiving ferrite.
In this embodiment, the inner groove wall of the third mounting groove 311 near the center of the receiving ring bracket 310 is provided with a second connection port 312, the inner groove wall of the fourth mounting groove 321 near the center of the receiving ring bracket 310 is provided with a third connection port 322, and the position of the third connection port 322 corresponds to the position of the second connection port 312. Thereby the wiring of receiving coil 330 can be introduced into the hollow structure of receiving ring support 310 through third wiring mouth 322, second wiring mouth 312, is convenient for with the piezoelectric vibrator 420 wiring in the ultrasonic knife body 100, and the wiring is convenient, and the wiring goes on from inside, can effectively protect the wiring.
Further, as shown in fig. 3 and 8, the gland 500 has a hollow structure with two open ends, and the inner wall of the gland 500 is used for matching with the corresponding assembling surface of the horn 410. An outer wall of one side of the gland 500 is provided with an assembling thread 512 for matching with an assembling surface of the cutter body, and a cover body part corresponding to the assembling thread 512 on the gland 500 is a pressing part 510. The pressing part 510 is used for pressing the fitting flange 411. The other side of the gland 500 body is a force application part 520. The gland 500 body is a clipping portion 530 between the compression portion 510 and the force application portion 520. The gland 500 adopts the above structure, the gland 500 is sleeved outside the corresponding assembly surface of the amplitude transformer 410 through the hollow structure thereof, the gland 500 can be rotated by applying force to the force application part 520, so that the compression part 510 is matched and locked with the assembly surface of the ultrasonic knife body 100, the compression part 510 compresses the assembly flange 411 of the amplitude transformer 410, then the gland 500 is cut at the cutting part 530 of the gland 500, the compression part 510 is reserved to realize a pressure for the amplitude transformer 410 on the ultrasonic knife body 100, so that the amplitude transformer 410 and the ultrasonic knife body 100 are more tightly matched, and finally, compared with the traditional structure, the compression part 510 only provided with the gland 500 on the ultrasonic knife handle does not need to be provided with a force application groove, so that the assembly of the amplitude transformer 410 and the ultrasonic knife body 100 is tight, and the circular runout and dynamic balance of the ultrasonic knife handle are not influenced.
Optionally, the axial length of the mounting threads 512 matches the axial length of the corresponding mounting face of the ultrasonic blade 100. Therefore, after the pressing part 510 is assembled into the ultrasonic blade body 100, the outer end of the pressing part 510 far away from the assembly flange 411 is flush with the end of the ultrasonic blade body 100, the assembled ultrasonic blade handle has a stable overall structure, is not easy to damage due to falling or collision, and has good integrity and attractive structure.
In this embodiment, an urging flange 522 for matching with a wrench is provided on the outer wall of the other side of the gland 500, and a cover portion of the gland 500 corresponding to the urging flange 522 is the urging portion 520. Therefore, when the gland 500 is locked, the spanner can be matched with the force application flange 522 to lock, so that the locking is reliable and the operation is convenient. Further, a relief groove 532 is formed on the outer wall of the gland 500 between the pressing portion 510 and the force applying portion 520, and a cover portion of the gland 500 corresponding to the relief groove 532 is the clipping portion 530. With the above structure, when cutting, the gland 500 can be cut at the clearance 532 of the gland 500 by a lathe, which is convenient to operate.
Further, as shown in fig. 9, 10 and 11, the ultrasonic transducer 400 further includes a cover 430, a locking bolt 440, and a heat-shrinkable insulating tube 450. The first end face of the horn 410 is provided with a threaded hole 415 which is matched with the locking bolt 440. The piezoelectric vibrator 420 is provided with a mounting hole 421. The cover 430 is disposed on a side of the piezoelectric vibrator 420 remote from the horn 410. The cover 430 is provided with a fixing hole 431. The locking bolt 440 is used to pass through the fixing hole 431 and the mounting hole 421 to be matched with the threaded hole 415, so that the piezoelectric vibrator 420 and the cover plate 430 are locked on the amplitude transformer 410. The heat-shrinkable insulating tube 450 is disposed between the locking bolt 440 and the piezoelectric vibrator 420 and cover plate 430. Furthermore, the first end of the amplitude transformer 410 corresponds to the front cover plate of the piezoelectric vibrator 420, the cover plate 430 corresponds to the rear cover plate of the piezoelectric vibrator 420, the piezoelectric vibrator 420 is locked on the amplitude transformer 410 through the matching of the locking bolt 440 and the threaded hole 415 on the amplitude transformer 410, the front cover plate of the piezoelectric vibrator 420 is not required to be additionally arranged, the structure is simple, the locking bolt 440 is adopted for locking, and the assembly is convenient; through set up pyrocondensation insulating tube 450 between locking bolt 440 and piezoelectric vibrator 420, apron 430, pyrocondensation insulating tube 450 can play insulating protection's effect, prevents that piezoelectric vibrator 420 from taking place the short circuit through locking bolt 440, improves the stability that the product used, and pyrocondensation insulating tube 450 can earlier pyrocondensation install on locking bolt 440 when the installation, can not influence locking bolt 440's assembly, convenient assembling.
Further, as shown in fig. 10, 11 and 12, the heat-shrinkable insulating tube 450 includes a first insulating tube 451 and a second insulating tube 452, the length of the first insulating tube 451 is matched with the sum of the lengths of the piezoelectric vibrator 420 and the cover plate 430, the first insulating tube 451 is sleeved outside the locking bolt 440, the mounting position of the first insulating tube 451 corresponds to the positions of the piezoelectric vibrator 420 and the cover plate 430, the length of the second insulating tube 452 is matched with the length of the piezoelectric vibrator 420, the second insulating tube 452 is sleeved outside the first insulating tube 451, and the mounting position of the second insulating tube 452 corresponds to the position of the piezoelectric vibrator 420.
With the above structure, when assembling the components of the ultrasonic transducer 400 of this embodiment, the first insulating tube 451 may be first sleeved on the outer side of the locking bolt 440 and then contracted by heating, the cover plate 430 is sleeved on the outer side of the locking bolt 440, the first insulating tube 451 is located between the locking bolt 440 and the cover plate 430, then the second insulating tube 452 is sleeved on the outer side of the locking bolt 440 and then contracted by heating, the piezoelectric vibrator 420 is sleeved on the outer side of the locking bolt 440, the first insulating tube 451 and the second insulating tube 452 are located between the locking bolt 440 and the piezoelectric vibrator 420, and finally the locking bolt 440 is integrally locked into the threaded hole 415 of the amplitude transformer 410, thereby completing the assembly. The first insulating tube 451 can play a role in insulating protection firstly, and cannot be too thick to influence the assembly of the locking bolt 440 and the cover plate 430, the second insulating tube 452 can play a role in insulating protection again on the piezoelectric vibrator 420, so that the piezoelectric vibrator 420 can be protected in a reinforced mode, short circuits of all electrode plates of the piezoelectric vibrator 420 are effectively prevented, and the protection effect is good; on the basis of realizing better protection effect, each part is convenient to assemble, and assembly efficiency is higher.
As shown in fig. 11, in one embodiment, the piezoelectric vibrator 420 includes a first piezoelectric ceramic piece 422, a first electrode piece 423, a second piezoelectric ceramic piece 424, a second electrode piece 425, a third piezoelectric ceramic piece 426, a third electrode piece 427, a fourth piezoelectric ceramic piece 428, and a fourth electrode piece 429 that are stacked in order. The negative electrode of the first piezoelectric ceramic plate 422 is connected to the first end surface of the amplitude transformer 410, the positive electrode of the first piezoelectric ceramic plate 422 is opposite to the positive electrode of the second piezoelectric ceramic plate 424, the negative electrode of the second piezoelectric ceramic plate 424 is opposite to the negative electrode of the third piezoelectric ceramic plate 426, the positive electrode of the third piezoelectric ceramic plate 426 is opposite to the positive electrode of the fourth piezoelectric ceramic plate 428, and the negative electrode of the fourth piezoelectric ceramic plate 428 is connected to the fourth electrode plate 429. In this way, the positive electrode and the positive electrode are connected between the adjacent piezoelectric ceramic plates by the corresponding electrode plates, and the negative electrode are connected, so that the piezoelectric characteristics of the piezoelectric vibrator 420 can be realized by energizing the corresponding electrode plates. Specifically, the first piezoelectric ceramic piece 422, the first electrode piece 423, the second piezoelectric ceramic piece 424, the second electrode piece 425, the third piezoelectric ceramic piece 426, the third electrode piece 427, the fourth piezoelectric ceramic piece 428 and the fourth electrode piece 429 are all provided with matched through holes, and each piezoelectric ceramic piece and the through holes on the electrode pieces together form the mounting hole 421.
Further, the locking bolt 440 includes a screw cap 441 and a screw 443 coupled to the screw cap 441. The side of the nut 441 that is connected to the screw 443 is the assembly side 442. The mounting side 442 is a smooth plane, and the mounting side 442 is perpendicular to the central axis of the threads on the screw 443. Furthermore, since the surface of the assembling side 442 of the locking bolt 440 is smooth, and the assembling side 442 is perpendicular to the central axis of the thread on the screw 443, after the locking bolt 440 is screwed down, the locking bolt 440 can provide a uniform locking force for the pressure provided by the piezoelectric vibrator 420, so that the pressure applied on the surface of the piezoelectric vibrator 420 is uniform and uniform, the performance of the piezoelectric vibrator 420 is improved, and the impedance and the frequency of the ultrasonic knife handle in the embodiment are ensured to be within the design range.
Further, as shown in fig. 3, 13 and 14, the side of the assembly flange 411 close to the piezoelectric vibrator 420 is a first side, the side of the assembly flange 411 far away from the piezoelectric vibrator 420 is a second side, an annular groove 412 is formed on the first side, the annular groove 412 is located at the connection position between the outer edge of the piezoelectric vibrator 420 and the amplitude transformer 410, and a vibration damping hole 413 is formed on the second side. Furthermore, through setting up annular groove 412 and vibration damping hole 413 on mounting flange 411, carry out subtracting material to mounting flange 411 and handle for mounting flange 411 intensity weakens, reduces the connection area between mounting flange 411 and the pole body, pinpoints the hookup location, make hookup location be in the vibration node department of amplitude transformer 410, and then interfere ultrasonic wave transmission, make the fitting surface of mounting flange 411 not vibrate, can separate ultrasonic vibration's transmission, form ultrasonic separation technique, make the mechanical vibration of piezoelectric vibrator 420 drive amplitude transformer 410 itself vibration more easily, high-efficient amplification amplitude, reduce energy loss.
Further, a spiral groove or curved groove 414 is provided on the outer wall of the horn 410. By providing the spiral groove 414 or the curved groove on the outer wall of the rod body, compared with the traditional smooth surface structure that the outer wall of the amplitude transformer 410 is cylindrical or conical, when the ultrasonic transducer 400 is applied to an ultrasonic vibration system, the ultrasonic tool shank rotates at a high speed, and the spiral groove 414 or the curved groove can convert part of axial vibration into vibration along the circumferential direction, so that part of longitudinal vibration is converted into torsional vibration, thereby adding ultrasonic vibration in the torsional direction to a cutting workpiece, realizing longitudinal-torsional composite processing, and being beneficial to realizing large-amplitude processing.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (9)
1. An ultrasonic blade handle, comprising:
the ultrasonic cutter body is connected with the main shaft of the machine tool at the first end and provided with an installation cavity at the second end;
the wireless transmission transmitting device is used for being arranged on a main shaft of the machine tool and connected with the ultrasonic power supply generator;
the wireless transmission receiving device is arranged on the ultrasonic knife body and is arranged corresponding to the wireless transmission transmitting device;
the ultrasonic transducer comprises an amplitude transformer and a piezoelectric vibrator arranged at the first end of the amplitude transformer, the second end of the amplitude transformer is used for being connected with a cutting tool, the first end of the amplitude transformer is provided with an assembly flange, the amplitude transformer is connected with the second end of the ultrasonic tool body through the assembly flange, the piezoelectric vibrator is positioned in the mounting cavity, and the piezoelectric vibrator is connected with the wireless transmission receiving device;
the gland is arranged on one side, far away from the piezoelectric vibrator, of the assembly flange, the gland is connected with the ultrasonic cutter body, and the gland compresses the assembly flange; and
the sealant is arranged between the gland and the assembly flange;
the gland is the hollow structure of both ends open-ended, the inner wall of gland is used for matching with the fitting surface of amplitude transformer, be equipped with on the outer wall of one side of gland be used for with cutter body fitting surface matched with assembly screw thread, the gland on with the corresponding lid part of assembly screw thread is the clamping part, the clamping part is used for compressing tightly the assembly flange, the opposite side of gland is the application of force portion, the gland is for tailorring between its clamping part and application of force portion, tailorring the portion is used for after the clamping part compresses tightly the assembly flange, tailorring the gland in tailorring the portion department.
2. The ultrasonic knife handle according to claim 1, wherein the ultrasonic transducer further comprises a cover plate, a locking bolt and a heat-shrinkable insulating tube, a threaded hole matched with the locking bolt is formed in the end face of the first end of the amplitude transformer, a mounting hole is formed in the piezoelectric vibrator, the cover plate is arranged on one side, far away from the amplitude transformer, of the piezoelectric vibrator, a fixing hole is formed in the cover plate, the locking bolt is used for penetrating through the fixing hole and the mounting hole to be matched with the threaded hole, the piezoelectric vibrator and the cover plate are locked on the amplitude transformer, and the heat-shrinkable insulating tube is arranged between the locking bolt and the piezoelectric vibrator and between the locking bolt and the cover plate.
3. The ultrasonic knife handle according to claim 2, wherein the heat-shrinkable insulating tube comprises a first insulating tube and a second insulating tube, the length of the first insulating tube is matched with the sum of the lengths of the piezoelectric vibrator and the cover plate, the first insulating tube is sleeved on the outer side of the locking bolt, the mounting position of the first insulating tube corresponds to the positions of the piezoelectric vibrator and the cover plate, the length of the second insulating tube is matched with the length of the piezoelectric vibrator, the second insulating tube is sleeved on the outer side of the first insulating tube, and the mounting position of the second insulating tube corresponds to the position of the piezoelectric vibrator.
4. The ultrasonic knife handle according to claim 1, wherein the wireless transmission transmitting device comprises a transmitting ring support, a transmitting magnetic core and a transmitting coil, a knife body through hole is formed in the transmitting ring support, a first mounting groove is formed in the periphery of the knife body through hole in the transmitting ring support, an assembly hole is further formed in the periphery of the first mounting groove in the transmitting ring support, the assembly hole is used for being matched with a support mounting hole in a non-rotating end face of a machine tool spindle, the transmitting magnetic core is mounted in the first mounting groove, a second mounting groove is formed in the transmitting magnetic core, and the transmitting coil is arranged in the second mounting groove.
5. The ultrasonic blade handle of claim 4, wherein the mounting hole is a bar-shaped mounting hole.
6. The ultrasonic knife handle according to claim 1, wherein the wireless transmission receiving device comprises a receiving ring support, a receiving magnetic core and a receiving coil, the receiving ring support is sleeved on the outer side of the ultrasonic knife body, a third mounting groove is formed in the receiving ring support, the receiving magnetic core is mounted in the third mounting groove, a fourth mounting groove is formed in the receiving magnetic core, and the receiving coil is mounted in the fourth mounting groove.
7. The ultrasonic knife handle according to any one of claims 1 to 6, wherein a positioning boss is arranged on the outer wall of the ultrasonic knife body, and the positioning boss is used for positioning the wireless transmission receiving device.
8. The ultrasonic blade handle of any one of claims 1 to 6, wherein the side of the assembly flange, which is close to the piezoelectric vibrator, is a first side, the side of the assembly flange, which is far away from the piezoelectric vibrator, is a second side, an annular groove is formed in the first side, the annular groove is located at the joint between the outer edge of the piezoelectric vibrator and the amplitude transformer, and a vibration damping hole is formed in the second side.
9. The ultrasonic blade handle of claim 8, wherein the horn has a helical groove or curved groove on an outer wall thereof.
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| CN201810488512.5A CN108436609B (en) | 2018-05-21 | 2018-05-21 | Ultrasonic knife handle |
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| CN201810488512.5A CN108436609B (en) | 2018-05-21 | 2018-05-21 | Ultrasonic knife handle |
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| CN108436609A CN108436609A (en) | 2018-08-24 |
| CN108436609B true CN108436609B (en) | 2023-10-20 |
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Address after: 510530 Block C, Portal and Aircraft Building, No. 8 Product Yao Electronic Industry Park, Nanyun No. 2 Road, Science City, Guangzhou High-tech Industrial Development Zone, Guangdong Province Applicant after: CONPROFE GREEN TOOLS Co.,Ltd. Address before: 510530 Block C, Portal and Aircraft Building, No. 8 Product Yao Electronic Industry Park, Nanyun No. 2 Road, Science City, Guangzhou High-tech Industrial Development Zone, Guangdong Province Applicant before: GUANGZHOU HUIZHUAN TOOLS Co.,Ltd. |
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