CN109108739B

CN109108739B - Ultrasonic cutterhead assembly device and method for measuring gravity center of device

Info

Publication number: CN109108739B
Application number: CN201811152388.1A
Authority: CN
Inventors: 颜炳姜; 李伟秋; 林一松
Original assignee: Conprofe Technology Group Co Ltd; Smartguy Intelligent Equipment Co Ltd Guangzhou Branch
Current assignee: Conprofe Technology Group Co Ltd; Smartguy Intelligent Equipment Co Ltd Guangzhou Branch
Priority date: 2018-09-29
Filing date: 2018-09-29
Publication date: 2023-08-15
Anticipated expiration: 2038-09-29
Also published as: CN109108739A

Abstract

The application provides an ultrasonic cutterhead assembly device and a method for measuring the gravity center of the device, and relates to the technical field of ultrasonic machining. The dynamic balance ring in the ultrasonic cutterhead assembly device is arranged on the installation boss; the cutter head comprises a cutter head body, one end of the cutter head body is provided with an annular grinding part, one end of the cutter head body, which is far away from the grinding part, is provided with a cutter head part, the cutter head part is connected with the amplitude transformer, and the grinding part is provided with a chip groove. In the ultrasonic cutterhead assembly device provided by the application, the mounting boss is arranged on the amplitude transformer, the dynamic balance ring is arranged on the mounting boss, the chip removing groove is formed on the cutterhead, and the ultrasonic cutterhead assembly device is balanced by combining the dynamic balance ring and adopts the chip removing groove for removing chips, so that the ultrasonic cutterhead assembly device has the advantages of good balance of the cutter handle, low production cost and the like.

Description

Ultrasonic cutterhead assembly device and method for measuring gravity center of device

Technical Field

The application relates to the technical field of ultrasonic machining, in particular to an ultrasonic cutter head assembly device and a method for measuring the gravity center of the device.

Background

Ultrasonic processing is a special processing which uses ultrasonic frequency as 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 released 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.

CN106181595a discloses a device and method for ultrasonic processing of fixed abrasive, which belongs to the field of hard and brittle material processing, and can be used for processing special-shaped holes and grinding planes, the device for ultrasonic processing of fixed abrasive comprises an XY axis feeding device, a working groove, a main shaft upright post, a fixed abrasive tool, a Z axis servo feeding device and an ultrasonic generating system, the ultrasonic generator adopts an ultrasonic constant current power supply, the ultrasonic constant current power supply comprises a collecting unit for collecting current and voltage at two ends of the ultrasonic transducer and a processing unit for calculating equivalent impedance of the ultrasonic processing system, and the processing unit compares the calculated equivalent impedance with an impedance set value and then adjusts the feeding speed of the fixed abrasive tool and/or the output current of the ultrasonic generator. The ultrasonic processing device for the fixed abrasive has higher processing precision, but has low efficiency, and can not realize rapid processing under the condition of ensuring the processing precision.

TWM372763U discloses an ultrasonic vibration type cutter module with a first coil secured to a stationary body. The sound wave generator is electrically connected to the first coil. The rotating body is rotatably mounted to the stationary body. The second coil is fixed on the rotating body. The two first contacts are fixed on the rotating body and electrically connected to the second coil. The handle body is detachably mounted on the rotary body. The two second contacts are fixed on the handle body and electrically connected to the two first contacts, respectively. The voltage stabilizing circuit board is disposed on the handle body and has two input terminals electrically connected to the two second contacts for stabilizing the input voltage generated by the second coil during rotation and outputting the output voltage at the two output terminals. The first piezoelectric sheet and the second piezoelectric sheet are respectively and electrically connected to the two output ends to jointly generate vibration. The expanding rod is fixed on the handle body for expanding the vibration, and the processing precision of the ultrasonic vibration type cutter module is required to be improved, and the processing efficiency and the processing materials can be processed are limited.

KR20150101628A discloses a free profiling cutting device for cutting hard materials, using ultrasound, comprising: a cutting tool having an ultrasonic generator for cutting a hard material and diamond grinding, and being made mainly of stainless steel from the ultrasonic generator by ultrasonic waves; an abrasive jet for applying an abrasive, the abrasive jet comprising fine diamond particles of hard material to cut the hard material; and a cutting tool driving device for applying a force to the cutting tool to cut the hard material in a vertical direction. The device cuts a hard material, is applicable by utilizing ultrasonic waves, is used for processing hard materials such as sapphire and reinforcing glass and is applied to smart phones and the like, however, the device for freely copying and cutting high-hardness materials is low in processing efficiency, and rapid processing under the condition of guaranteeing processing precision cannot be realized.

At present, in the current knife subassembly, traditional integrated has vibration system's ultrasonic knife handle, and the equilibrium is not good, and its luffing rod is inclined through the collision easily to increase luffing rod's circle and beat, influence luffing rod's dynamic balance, lead to ultrasonic wave blade disc subassembly device machining precision relatively poor, life is shorter.

And the grinding part to the bottom of the sonic tool handle adopts an integral annular structure, so that a large amount of heat is generated due to friction force during grinding, the grinding part is influenced, grinding scraps generated by a workpiece cannot be effectively discharged by the grinding part in the grinding process, so that the surface of the ground workpiece is uneven or scratched, the service life of the grinding part is influenced, a large amount of time is required to be spent for removing the grinding scraps so as to avoid the phenomenon, the production time is wasted greatly, and the production cost is increased by frequent replacement of the grinding disc.

In summary, in the existing cutter assembly, the balance of the cutter handle assembly is poor, which results in poor processing precision and high production cost of the ultrasonic cutter head assembly device.

Disclosure of Invention

The application aims to provide an ultrasonic cutterhead assembly device, which aims to solve the technical problems of poor machining precision and high production cost of the ultrasonic cutterhead assembly device caused by poor balance of a cutter handle assembly in the existing cutter assembly.

In order to solve the technical problems, the application adopts the following technical scheme; the ultrasonic cutterhead assembly device provided by the first aspect of the application comprises an ultrasonic cutter body, wherein a first end of the ultrasonic cutter body is connected with a main shaft of a machine tool;

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 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 a connecting piece, the amplitude transformer is connected with the second end of the ultrasonic cutter body through the connecting piece, and the connecting piece is provided with a mounting boss for mounting a dynamic balance ring;

the dynamic balance ring is arranged on the installation boss;

the cutter head comprises a cutter head body, one end of the cutter head body is provided with an annular grinding part, one end of the cutter head body, which is far away from the grinding part, is provided with a cutter head part, the cutter head part is connected with the amplitude transformer, and the grinding part is provided with a chip groove.

In any of the above technical solutions, further, an included angle exists between an extending direction of the slot wall of the chip slot and a slot depth direction of the chip slot.

In any of the above technical solutions, further, a connecting column is provided at the bottom of the amplitude transformer, a through hole is provided in the center of the cutterhead body, and the connecting column penetrates through the through hole.

In any of the above embodiments, further, the cutter head portion has an outer shape matching a shape of the horn bottom.

In any of the above technical solutions, further, the dynamic balance ring includes a ring body, where the ring body has an inner side surface and an outer side surface opposite to each other, and the inner side surface is used to enclose a mounting hole in the middle of the ring body; the outer side face is provided with a plurality of weight ports, and a plurality of weight ports are evenly distributed along the circumference of the outer side face.

In any of the above technical solutions, further, the dynamic balance ring further includes an adjusting device, and the adjusting device is installed in the weight hole.

In any of the above solutions, further, the second end of the horn is provided with a conical surface, and the diameter of the conical surface gradually decreases from the second end of the horn to the first end of the horn.

In any of the above technical solutions, further, the ultrasonic transducer further includes a cover plate and a locking bolt;

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, and 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, so that the piezoelectric vibrator and the cover plate are locked on the amplitude transformer.

In any of the above technical solutions, the machine tool further comprises a wireless transmission and transmission device for transmitting signals to the wireless transmission and reception device, and the wireless transmission and transmission device is installed on the machine tool spindle and connected with an ultrasonic power supply generator.

By adopting the technical scheme, the application has the following beneficial effects:

in the ultrasonic cutterhead assembly device provided by the application, the dynamic balance ring is arranged on the installation boss, the cutterhead part is connected with the amplitude transformer, and the grinding part is provided with the chip removal groove. Through being provided with the installation boss on the amplitude transformer, be provided with the dynamic balance ring on the installation boss, offered the chip groove on the blade disc, combine dynamic balance ring balanced and adopt the chip groove chip removal, have that the handle of a knife equilibrium is good and low in production cost's advantage.

Further, a certain included angle exists between the extending direction of the groove wall of the chip groove and the groove depth direction of the chip groove.

Further, a connecting column is arranged at the bottom of the amplitude transformer, a through hole is formed in the center of the cutter head body, and the connecting column penetrates through the through hole.

Additional aspects and advantages of the application will be set forth in part in the description which follows, or may be learned by practice of the application.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the application and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an ultrasonic cutterhead assembly according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of the ultrasonic cutterhead assembly apparatus of FIG. 1;

FIG. 3 is a schematic view of a mounting cavity in an ultrasonic blade according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a dynamic balance ring in an ultrasonic cutterhead assembly device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a wireless transmitting and receiving device in an ultrasonic cutterhead assembly device according to an embodiment of the present application;

fig. 6 is a schematic view of the structure of the horn in the ultrasonic cutterhead assembly apparatus according to one embodiment of the present application;

fig. 7 is a schematic diagram of an explosion structure of an ultrasonic transducer in an ultrasonic cutterhead assembly device according to an embodiment of the present application;

fig. 8 is a schematic perspective view of a cutterhead in an ultrasonic cutterhead assembly apparatus according to an embodiment of the present application;

fig. 9 is a schematic view of a partial enlarged structure of a in fig. 8.

Reference numerals:

100. an ultrasonic cutter body; 110. installing a cavity; 120. positioning the boss; 130. a wire through hole; 300. a wireless transmission receiving device; 310. a receiving ring support; 311. a third mounting groove; 312. a second wiring port; 320. a receiving core; 321. a fourth mounting groove; 322. a third wiring port; 330. a receiving coil; 400. an ultrasonic transducer; 410. a horn; 411. a connecting piece; 412; a baffle; 413. a groove; 414. a conical surface; 415. a threaded hole; 416. a protrusion; 420. a piezoelectric vibrator; 422. a first piezoelectric ceramic sheet; 423. a first electrode sheet; 424. a second piezoelectric ceramic sheet; 430. a cover plate; 440. a locking bolt; 500. a mounting boss; 501. a dynamic balance ring; 502. an inner side surface; 503. an outer side surface; 504. a weight port; 600. a cutterhead; 610. a cutterhead body; 611. a cutting face; 612. a through hole; 620. a grinding section; 621. a chip removal groove; 622. a cutting edge; 630. a cutter head part.

Detailed Description

The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The application is further explained below with reference to fig. 1 to 9 in connection with specific embodiments.

An embodiment of the first aspect of the present application provides an ultrasonic cutterhead assembly apparatus, which includes an ultrasonic blade body 100, a first end being configured to be connected to a spindle of a machine tool;

the wireless transmission receiving device 300 is installed on the ultrasonic knife body 100 and is arranged corresponding to the wireless transmission transmitting device;

an ultrasonic transducer 400 including a horn 410 and a piezoelectric vibrator 420 provided at a first end of the horn 410, the piezoelectric vibrator 420 being connected to the wireless transmission-reception device 300; the second end of the amplitude transformer 410 is used for being connected with a cutting tool, the first end of the amplitude transformer 410 is provided with a connecting piece 411, the amplitude transformer 410 is connected with the second end of the ultrasonic blade body 100 through the connecting piece 411, and the connecting piece 411 is provided with a mounting boss 500 for mounting a dynamic balance ring;

a dynamic balance ring 501, wherein the dynamic balance ring 501 is arranged on the installation boss 500;

the cutterhead 600, the cutterhead 600 includes a cutterhead body 610, an annular grinding portion 620 is disposed at one end of the cutterhead body 610, a cutterhead portion 630 is disposed at one end of the cutterhead body 610, which is far away from the grinding portion 620, the cutterhead portion 630 is connected with the amplitude transformer, and chip grooves 621 are formed in the grinding portion 620.

The installation boss 500 is used for installing the dynamic balance ring, and the dynamic balance ring is installed on the installation boss 500 to carry out counterweight, so that the stability of the ultrasonic cutterhead assembly device is ensured.

The ultrasonic cutterhead assembly device is characterized in that the ultrasonic cutterhead assembly device comprises an ultrasonic cutterhead body 100, a wireless transmission transmitting device, a wireless transmission receiving device 300 and an ultrasonic transducer 400, wherein the ultrasonic cutterhead body 100 is used for connecting a machine tool spindle, installing an ultrasonic transducer 400 and other components, the wireless transmission transmitting device is used for transmitting a high-frequency electric energy signal generated by an ultrasonic power generator to the wireless transmission receiving device 300 in a wireless transmission mode, the wireless transmission receiving device 300 is used for receiving a signal sent by the wireless transmission transmitting device and reducing the sensed signal into the high-frequency electric energy signal to be transmitted to the ultrasonic transducer 400, the ultrasonic transducer 400 is used for converting the frequency electric signal into high-frequency mechanical vibration by utilizing the piezoelectric inverse effect of the piezoelectric vibrator 420, amplifying the mechanical vibration to be transmitted to a machined workpiece through the amplitude transformer 410, and further ultrasonic machining can be realized by matching with a traditional common machine tool.

The ultrasonic cutterhead assembly device 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, an ultrasonic transducer 400 is connected with an ultrasonic cutter body 100 through a connecting piece 411 of an amplitude transformer 410, the ultrasonic cutter body 100 is connected with a bulge 416 through a groove 413, and the connecting piece 411 and the ultrasonic cutter body 100 can be fixed by adopting a connecting piece 411 (screw) or gluing according to requirements. Providing the connection 411 or gluing can further strengthen the structural strength of the product.

The junk slots 621 play a role in heat dissipation on the one hand and in discharging the grinding dust on the other hand, and prolong the service life of the grinding part 620 while guaranteeing the grinding quality.

In any of the above embodiments, further, an angle is formed between the extending direction of the slot wall of the junk slot 621 and the slot depth direction of the junk slot.

The chip groove 621 is obliquely arranged, not vertically arranged, and the cutting surface 611 forms an acute angle with the surface to be ground during cutting, so that the resistance can be reduced, and the cutting is easier.

The end surfaces of the cutting surfaces 611 are all electric sand surfaces. The end surface of the cutting surface 611 is made of silicon carbide, and grinding can be performed more effectively.

The side walls of the flutes 621 form cutting surfaces 611 and the lower edges of the flutes form cutting edges 622. When the grinding end of the annular grinding part just contacts the surface to be ground, buffering and rough cutting are formed by the cutting edge 622, so that the surface to be ground is relatively flat by the cutting edge 622, and then the surface to be ground is ground by the grinding end of the annular cutting part. By the arrangement, the grinding machine is smoother in grinding, good in grinding effect, capable of buffering cutting collision of workpieces and improving product processing quality. In the cutting and grinding process, the chip groove has the effects of heat dissipation on one hand and discharging the grinding chips on the other hand, so that the grinding quality is ensured, and the service life of the grinding part is prolonged.

In any of the above embodiments, further, a connection post is disposed at the bottom of the horn 410, a through hole 612 is disposed in the center of the cutterhead body 610, and the connection post is disposed through the through hole 612.

In any of the above embodiments, further, the cutterhead 630 has a shape that matches the shape of the bottom of the horn 410. The cutter head portion 630 may be planar or tapered, and preferably is planar, and the cutter head portion 630 may be tapered, and the diameter of the cutter head portion 630 increases from the horn 410 to the cutter head body 610.

The conical shape of the cutterhead portion 630 can improve the connection firmness between the cutter amplitude transformer 410 and the cutterhead body 610, so that the amplitude transformer 410 can drive the cutterhead body 610 to rotate stably, and the end face runout and roundness runout generated by the grinding portion 620 are reduced.

The ultrasonic cutter head assembly device can be matched with a dynamic balance ring, is good in stability and structural strength, is not easy to incline the amplitude transformer 410 after collision of products, is not easy to influence the circle run-out and dynamic balance of the amplitude transformer 410, and is high in machining precision and long in service life.

In any of the above solutions, further, the dynamic balancing ring 501 includes a ring body, where the ring body has an inner side 502 and an outer side 503 opposite to each other, and the inner side 502 is used to enclose a mounting hole in the middle of the ring body;

the outer side 503 is provided with a plurality of weight ports 504, and the weight ports 504 are uniformly distributed along the circumference of the outer side 503.

In any of the above solutions, further, the dynamic balance ring 501 further includes an adjusting device, and the adjusting device is installed in the weight hole 504.

The adjusting device is arranged in the weight hole 504 of the dynamic balance ring 501 to adjust the spatial position of the center of gravity of the whole formed by the handle and the dynamic balance ring 501 so as to keep the center of gravity on the rotation axis of the handle, thereby being beneficial to maintaining the balance state in the rotation process, improving the processing precision and reducing the occurrence of mechanical faults.

The adjusting device is of a columnar structure; the cylindrical structure has external threads for mating with the internal threads of the weight ports 504. The end part of the columnar structure is provided with a driving groove which can be a straight groove or a cross groove.

In any of the above embodiments, further, a groove 413 is disposed on the second end of the ultrasonic blade body 100, and a protrusion 416 matching the groove 413 is disposed on the connecting rod. A baffle 412 is disposed between the groove 413 and the projection 416.

The baffle 412 is provided to form a waterproof protection to prevent water seepage into the inner cavity of the installation cavity 110 of the ultrasonic blade body 100 from damaging the piezoelectric effect of the piezoelectric vibrator 420.

In any of the foregoing embodiments, further, the second end of the horn 410 is provided with a tapered surface 414, the tapered surface 414 having a diameter that gradually decreases from the second end of the horn 410 to the first end of the horn 410.

The bottom of the conical surface 414 is provided with a connecting protrusion 416 for connecting with a cutter head, and the bottom of the amplitude transformer 410 is arranged to be a plane, so that the amplitude transformer is convenient to connect with the cutter head, and the strength is improved.

In any of the above embodiments, further, the ultrasonic transducer 400 further includes a cover 430 and a locking bolt 440;

a threaded hole 415 matched with the locking bolt 440 is formed in the first end face of the amplitude transformer 410, a mounting hole is formed in the piezoelectric vibrator 420, the cover plate 430 is arranged on one side, away from the amplitude transformer 410, of the piezoelectric vibrator 420, and a fixing hole is formed in the cover plate 430;

the locking bolt 440 is used to pass through the fixing hole and the mounting hole 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 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, a third piezoelectric ceramic piece, a third electrode piece, and the like, which are stacked in order. The negative electrode of the first piezoelectric ceramic piece 422 is connected to the first end surface of the horn 410, the positive electrode of the first piezoelectric ceramic piece 422 is opposite to the positive electrode of the second piezoelectric ceramic piece 424, the negative electrode of the second piezoelectric ceramic piece 424 is opposite to the negative electrode of the third piezoelectric ceramic piece, the positive electrode is connected to the positive electrode, the negative electrode is connected to the negative electrode, and the piezoelectric characteristics of the piezoelectric vibrator 420 can be achieved by energizing the corresponding electrode pieces.

In any of the above technical solutions, further, a heat-shrinkable insulating tube is arranged outside the locking bolt 440, and the heat-shrinkable insulating tube is arranged between the locking bolt 440 and the piezoelectric vibrator 420 and the cover plate 430.

In any of the above embodiments, further, a mounting cavity 110 is provided at the second end of the ultrasonic blade 100, and the piezoelectric vibrator 420 is located in the mounting cavity 110.

In any of the above embodiments, further, the wireless transmission receiving device 300 includes a receiving ring bracket 310, a receiving magnetic core, and a receiving coil;

the receiving ring support 310 is sleeved on the outer side of the ultrasonic knife body 100, a third mounting groove 311 is formed in the receiving ring support 310, the receiving magnetic core is mounted in the third mounting groove 311, a fourth mounting groove 321 is formed in the receiving magnetic core, and the receiving coil 330 is mounted in the fourth mounting groove.

The inner groove wall of the third mounting groove 311 near the center of the receiving ring bracket 310 is provided with a second wiring 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 wiring port 322, and the position of the third wiring port 322 corresponds to the position of the second wiring 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. The wiring of the wireless transmission receiving device 200 is inserted from the wire passing hole 130 on the ultrasonic blade body 100.

The receiving magnetic core 320 can be induced with the transmitting magnetic core of the wireless transmission transmitting device, so as to play a role of wireless reception, and restore 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 any of the above embodiments, further, 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. The positioning boss 120 can play a role in installation and positioning, the wireless transmission receiving device 300 can be directly installed at the positioning boss 120 without repeatedly adjusting the installation position, and the wireless transmission receiving device is convenient to install, simple to operate and high in installation efficiency.

The knife assembly further comprises a machine spindle on which the ultrasonic blade body 100 is disposed.

In any of the above solutions, the apparatus further includes a wireless transmission and transmission device for transmitting signals to the wireless transmission and reception device 300, where the wireless transmission and transmission device is installed on the machine tool spindle and connected to an ultrasonic power generator.

Example two

In a second embodiment, a method for testing the center of gravity of an ultrasonic cutterhead assembly device is provided, wherein the method specifically includes the following steps:

s1, mounting a dynamic balance ring 501 on the mounting boss;

s2, 4 adjusting devices with the same weight are installed in the weight hole 504, and one adjusting device is installed at intervals of 90 degrees;

s3, testing the gravity center of the ultrasonic cutter head assembly by using a gravity center tester, so that the first measured deflection position is a first deflection position, and the first measured deflection weight is a first deflection weight;

s4, according to the measured first weight bias at the first weight bias position, if the first weight bias position is at one position of the 4 adjusting devices installed in the S2, removing the adjusting device corresponding to the first weight bias position, and using a gravity center tester to test the gravity center of the ultrasonic cutterhead assembly, so that the weight bias measured by the second test is the second weight bias; correspondingly assembling or disassembling the adjusting devices with different weight specifications according to the second weight bias;

if the first offset position is not at any one of the 4 adjusting devices installed in S2, an adjusting device of a corresponding specification is installed opposite to the first offset position according to the first offset weight.

S5, repeating the step S4 until the gravity center of the ultrasonic cutterhead assembly is axially coincident with the ultrasonic cutterhead assembly.

The number of the side weight holes 504 of the dynamic balance ring 501 is 24, 30 or 36;

the jackscrews inserted into the weight ports 504 have five specifications, and the weights are respectively 0.1g, 0.2g, 0.3g, 0.4g and 0.5g; 4 0.3g adjusting devices (optional jackscrews) are arranged in the weight hole 504, one is arranged at intervals of 90 degrees, and the jackscrews are propped against the cutter handle due to clearance fit to further fix the dynamic balance ring 501 to the ultrasonic cutter body or the amplitude transformer.

When the ultrasonic wave provided by the application is used, the installation boss 500 is used for installing the dynamic balance ring, and the dynamic balance ring is installed on the installation boss 500 for counterweight, so that the stability of the ultrasonic wave cutter head assembly device is ensured. The chip groove 621 plays a role in heat dissipation on the one hand, and plays a role in discharging the grinding scraps on the other hand, so that the service life of the grinding part 620 is prolonged while the grinding quality is ensured; the cutting edge 622 formed at the lower edge of the chip groove 621 can cut the high point on the surface of the workpiece, so that the cutting collision between the cutter head body 610 and the workpiece is buffered, and the processing quality of the workpiece is ensured.

In summary, the dynamic balance ring is disposed on the mounting boss, the cutterhead is connected with the amplitude transformer, and the grinding portion is provided with the junk slot. Through being provided with the installation boss on the amplitude transformer, be provided with the dynamic balance ring on the installation boss, offered the chip groove on the blade disc, combine dynamic balance ring balanced and adopt the chip groove chip removal, have that the handle of a knife equilibrium is good and low in production cost's advantage.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application. Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the claims below, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Claims

1. A method of testing the center of gravity of an ultrasonic cutterhead assembly apparatus for an ultrasonic cutterhead assembly apparatus, the ultrasonic cutterhead assembly apparatus comprising: the ultrasonic cutter body is connected with the main shaft of the machine tool at the first end; 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 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 a connecting piece, the amplitude transformer is connected with the second end of the ultrasonic cutter body through the connecting piece, and the connecting piece is provided with a mounting boss for mounting a dynamic balance ring; the dynamic balance ring is arranged on the installation boss; the cutter head comprises a cutter head body, wherein one end of the cutter head body is provided with an annular grinding part, and the grinding part is provided with a chip groove; the cutter head body is provided with a cutter head part at one end far away from the grinding part, and the cutter head part is connected with the amplitude transformer; the dynamic balance ring comprises a ring body, wherein the ring body is provided with an inner side surface and an outer side surface which are opposite, and the inner side surface is used for enclosing a mounting hole in the middle of the ring body; the outer side is provided with a plurality of weight ports, and a plurality of weight ports are followed the circumference equipartition of outer side, its characterized in that, specific step is as follows:

s1, installing a dynamic balance ring on the installation boss;

s2, installing 4 adjusting devices with the same weight in the counterweight hole, and installing one adjusting device at intervals of 90 degrees;

if the first bias position is not at any one of the 4 adjusting devices installed in the S2, installing the adjusting device with corresponding specification opposite to the first bias position according to the first bias;

2. The method of testing the center of gravity of an ultrasonic cutterhead assembly in accordance with claim 1, wherein,

and a certain included angle exists between the extending direction of the groove wall of the chip groove and the groove depth direction of the chip groove.

3. The method of testing the center of gravity of an ultrasonic cutterhead assembly in accordance with claim 1, wherein,

the bottom of the amplitude transformer is provided with a connecting column, the center of the cutter head body is provided with a through hole, and the connecting column penetrates through the through hole.

4. The method of testing the center of gravity of an ultrasonic cutterhead assembly in accordance with claim 1, wherein,

the shape of the cutterhead part is matched with the shape of the bottom of the amplitude transformer.

5. The method of testing the center of gravity of an ultrasonic cutterhead assembly device according to claim 1 wherein the dynamic balance ring further comprises an adjustment device mounted in the weight ports.

6. The method of testing the center of gravity of an ultrasonic cutterhead assembly in accordance with claim 1 wherein the second end of the horn is provided with a tapered surface having a diameter that tapers from the second end of the horn to the first end of the horn.

7. The method of testing the center of gravity of an ultrasonic cutterhead assembly device according to claim 1 wherein the ultrasonic transducer further comprises a cover plate and a locking bolt;