CN110293633B - Ultrasonic machining apparatus and vibration unit thereof - Google Patents
Ultrasonic machining apparatus and vibration unit thereof Download PDFInfo
- Publication number
- CN110293633B CN110293633B CN201810238857.5A CN201810238857A CN110293633B CN 110293633 B CN110293633 B CN 110293633B CN 201810238857 A CN201810238857 A CN 201810238857A CN 110293633 B CN110293633 B CN 110293633B
- Authority
- CN
- China
- Prior art keywords
- bearing
- ring
- conducting
- sheet
- piezoelectric sheets
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses an ultrasonic processing device and a vibration unit thereof, wherein the ultrasonic processing device comprises: the vibration generator comprises a fixed seat, a rotating shaft which is rotatably arranged in the fixed seat, and a vibration unit which is arranged on the rotating shaft and rotates along with the rotating shaft. The vibration unit comprises a plurality of piezoelectric sheets and a conductive sheet group with at least one first conductive sheet and at least one second conductive sheet, the conductive sheet group is used for forming the piezoelectric sheets into a parallel configuration, the piezoelectric sheets are adjacent to a packing piece, and a combination piece penetrates through the packing piece and the piezoelectric sheets and is connected to the amplitude rod; the front and back opposite surfaces of each piezoelectric sheet are oppositely provided with a pair of slots, so that the piezoelectric sheets axially form high-frequency vibration under the action of high-frequency voltage and simultaneously generate radial deflection vibration by utilizing deformation caused by the existence of the slots.
Description
Technical Field
The invention belongs to the technical field of ultrasonic devices, and relates to an ultrasonic processing device, in particular to an ultrasonic processing device with axial high-frequency vibration and radial deflection vibration. The invention also relates to a vibration unit which is used for the ultrasonic processing machine or the ultrasonic processing device and can provide high-frequency vibration and radial deflection vibration.
Background
The main shaft of the ultrasonic processing machine mainly utilizes the high-frequency vibration of the piezoelectric plate, so that a tool arranged on the main shaft can generate high-frequency oscillation, and the tool can effectively reduce cutting resistance so as to separate particles on the surface of a workpiece to be processed one by one. When the workpiece to be processed is a hard and brittle material, such as glass, ceramic, zirconium dioxide, etc., if the workpiece can be processed by an ultrasonic processing machine, not only can the chips generated by the processing become thinner, but also the service life of the tool can be prolonged.
Moreover, when the spindle of the ultrasonic processing machine carries out high-frequency oscillation processing, due to the addition of the vibration source, when the tool is in contact with the workpiece to be processed, axial high-frequency vibration is added to the tool besides the rotation of the spindle, so that the tool promotes the material removal of the workpiece to be processed under the dual motion. Therefore, the ultrasonic processing machine has the advantages of reducing the processing resistance, improving the processing efficiency, improving the roughness of the processing surface of the workpiece to be processed, preventing the tool from sticking cutting scraps due to vibration and prolonging the service life of the tool, so that the main shaft of the ultrasonic processing machine is widely adopted in the industry at present.
In view of the fact that a non-ultrasonic processing machine cannot provide ultrasonic processing function, those skilled in the art have developed an ultrasonic knife handle with ultrasonic high-frequency vibration, for example, patent publication No. TW 1415691B of taiwan patent application, which discloses an ultrasonic processing device (also called ultrasonic knife handle), the ultrasonic processing device comprising: the fixing unit comprises a hollow shaft seat and at least one carbon brush which is arranged in the shaft seat and can be electrically conducted; a rotating unit rotatably installed in the fixing unit and including a hollow sleeve rotatably installed in the shaft seat; and the vibration unit is arranged on the rotating unit and rotates along with the rotating unit, and comprises a hollow base arranged in the sleeve, an ultrasonic head arranged in the base and a conducting ring arranged on the base and electrically connected with the carbon brush, wherein the ultrasonic head is provided with a large-diameter section and a small-diameter section which extends from the large-diameter section to the lower part in a shrinking manner, and the conducting ring is correspondingly positioned at the periphery of the small-diameter section and is in rotary contact with the carbon brush so as to guide the current output by the carbon brush to the ultrasonic head and enable the ultrasonic head to generate vibration.
In order to provide a working power supply for the ultrasonic processing device, the ultrasonic processing device further comprises a wiring unit fixedly mounted on the fixing unit, wherein the wiring unit is provided with a first wiring seat, a second wiring seat fixedly mounted on the fixing unit and correspondingly positioned below the first wiring seat, a first electrode mounted at the bottom of the first wiring seat, an electric wire used for electrically connecting the first electrode and a power supply, and a second electrode mounted at the top of the second wiring seat and electrically connected with a wire of the carbon brush.
In fact, the first wire holder is fixedly installed on the main shaft of the processing machine, so that when the ultrasonic processing device is installed on the main shaft of the processing machine, the second electrode of the second wire holder is inserted into the first electrode of the first wire holder to form an electrical connection. Therefore, the step of fixedly mounting the first wire holder of the ultrasonic processing apparatus on the processing machine spindle is to supply the power supply in the processing machine spindle to the second wire holder, which involves modification of the processing machine spindle, and wiring of the power supply, which unnecessarily increases the cost of modification and wiring. Moreover, the design of the carbon brush and the electrically connected conducting ring rotating at high speed is utilized, and the carbon brush is easy to wear at an accelerated speed, so that the conducting qualification rate is influenced, the service life of the carbon brush is greatly reduced, and the method is not an effective solution. In addition, the conventional ultrasonic processing machine or ultrasonic processing apparatus cannot provide the radial deflection vibration function, so that the axial and radial cutting functions cannot be completed at one time, and improvement is desired.
Therefore, how to provide the ultrasonic processing machine or the ultrasonic processing apparatus with axial high-frequency vibration and radial deflection vibration is a difficult problem to be overcome by those skilled in the art.
Disclosure of Invention
The present invention is directed to an ultrasonic machining apparatus having axial high-frequency vibration and radial run-out vibration functions, thereby performing axial and radial cutting at a time and eliminating an additional radial cutting process.
To achieve the above object, the present invention provides an ultrasonic processing apparatus, comprising: a fixed seat, which comprises a shell, a seat hole with a first bearing and a second bearing sleeved in the shell at intervals, and an electric connector arranged on the outer peripheral surface of the shell, wherein an electrode of the electric connector is coupled with the second bearing through a first lead wire, so that the second bearing is electrically connected with a conducting ring adjacent to one side, and the second bearing and the conducting ring are sleeved in an insulating sleeve; the other electrode of the electric connector is coupled with the shell, so that the shell is electrically connected with the first bearing; a rotating shaft, which is provided with a shaft lever arranged in the shell and sleeved with the first bearing and the insulating sleeve, wherein one end of the shaft lever is connected with a cutter handle inserted in a main shaft of a processing machine, and the other end of the shaft lever is connected with an amplitude lever for installing a cutter; and a vibration unit, it includes many piezoelectric plates and a conducting strip group with at least a first conducting strip and at least a second conducting strip, the conducting strip group is used for forming a parallel configuration with these piezoelectric plates, and these piezoelectric plates adjoin a packing piece, and pass a combination piece through the packing piece and these piezoelectric plates and connect to the amplitude rod; a second conducting wire of the conducting ring is coupled with the at least one first conducting sheet, and the at least one second conducting sheet is contacted with the amplitude rod to respectively form electrical connection; the front and back opposite surfaces of each piezoelectric sheet are oppositely provided with a pair of slots, so that the piezoelectric sheets axially form high-frequency vibration under the action of high-frequency voltage provided by the electric connector, and simultaneously utilize deformation caused by the slots to generate radial deflection vibration.
To achieve the above object, another technical means of the present invention is to provide an ultrasonic processing apparatus, comprising: a fixed seat, which comprises a shell, a seat hole with a first bearing and a second bearing sleeved in the shell at intervals, and an electric connector arranged on the outer peripheral surface of the shell, wherein an electrode of the electric connector is coupled with the second bearing through a first lead wire, so that the second bearing is electrically connected with a conducting ring adjacent to one side, and the second bearing and the conducting ring are sleeved in an insulating sleeve; the other electrode of the electric connector is coupled with the shell, so that the shell is electrically connected with the first bearing; a rotating shaft, which is provided with a shaft lever arranged in the shell and sleeved with the first bearing and the insulating sleeve, wherein one end of the shaft lever is connected with a cutter handle inserted in a main shaft of a processing machine, and the other end of the shaft lever is connected with an amplitude lever for installing a cutter; and a vibration unit, it includes multiple piezoelectric patches and a conducting patch group with at least a first conducting patch and at least a second conducting patch, the conducting patch group is used for forming a parallel configuration with these piezoelectric patches, and these piezoelectric patches adjoin a packing piece, and connect a combination piece to the amplitude rod through the packing piece and these piezoelectric patches; a second conducting wire of the conducting ring is coupled with the at least one first conducting sheet, and the at least one second conducting sheet is contacted with the amplitude rod to respectively form electrical connection; at least one side edge is cut off on the peripheral surfaces of the at least one first conducting sheet and the at least one second conducting sheet, so that at least one pair of hollow grooves are formed on the front and back opposite surfaces of the first conducting sheet and the second conducting sheet and each piezoelectric sheet, and the piezoelectric sheets axially form high-frequency vibration under the action of high-frequency voltage provided by the electric connector and simultaneously generate radial deflection vibration by utilizing deformation caused by the existence of the hollow grooves.
A secondary object of the present invention is to provide a vibration unit for an ultrasonic processing machine or an ultrasonic processing apparatus, in which grooves are formed or hollowed-out grooves are formed in radial positions of two opposite surfaces of each piezoelectric sheet, so that each piezoelectric sheet has both axial high-frequency vibration and radial deflection vibration functions.
To achieve the above-mentioned objective, the present invention provides a vibration unit for an ultrasonic processing machine or an ultrasonic processing apparatus, comprising a plurality of piezoelectric plates and a conductive plate assembly having at least a first conductive plate and at least a second conductive plate, wherein the conductive plate assembly is used for forming the piezoelectric plates into a parallel configuration, the piezoelectric plates are adjacent to a fastening member, and a connecting member passes through the fastening member and the piezoelectric plates and is connected to an amplitude rod of the ultrasonic processing machine or the ultrasonic processing apparatus; the front and back opposite surfaces of each piezoelectric sheet are oppositely provided with a pair of slots, so that the piezoelectric sheets axially form high-frequency vibration under the action of high-frequency voltage and simultaneously generate radial deflection vibration by utilizing deformation caused by the existence of the slots.
In order to achieve the above objects, another technical means of the present invention is to provide a vibration unit for an ultrasonic processing machine or an ultrasonic processing apparatus, comprising a plurality of piezoelectric plates and a conductive plate assembly having at least a first conductive plate and at least a second conductive plate, wherein the conductive plate assembly is used for forming the piezoelectric plates into a parallel configuration, and the piezoelectric plates are adjacent to a fastening member, and a connecting member is connected to an amplitude rod of the ultrasonic processing machine or the ultrasonic processing apparatus by passing through the fastening member and the piezoelectric plates; at least one side edge is cut off on the peripheral surface of the at least one first conducting sheet and the at least one second conducting sheet, so that at least one pair of hollow grooves are formed on the front and back opposite surfaces of the first conducting sheet and the second conducting sheet and each piezoelectric sheet, and the piezoelectric sheets axially form high-frequency vibration under the action of high-frequency voltage and simultaneously generate radial deflection vibration by utilizing deformation caused by the existence of the hollow grooves.
Drawings
To further illustrate the detailed description of the invention, reference is first made to the accompanying drawings, in which:
FIG. 1 is an exploded perspective view of an ultrasonic machining apparatus according to the present invention;
FIG. 2 is a perspective view of the ultrasonic machining apparatus of the present invention after assembly;
FIG. 3 isbase:Sub>A cross-sectional view of FIG. 2 taken along line A-A;
FIG. 4 is an exploded perspective view of a first embodiment of a vibration unit and an amplitude rod according to the present invention;
FIG. 5 is an enlarged partial cross-sectional view of the vibration unit according to the first embodiment of the present invention
FIG. 6 is an exploded perspective view of a second embodiment of a vibration unit and an amplitude rod according to the present invention;
FIG. 7 is an enlarged partial cross-sectional view of the assembled second embodiment of the vibration unit of the present invention;
FIG. 8 is an exploded perspective view of a vibration unit and an amplitude rod according to a third embodiment of the present invention; and
fig. 9 is a partially enlarged sectional view of a third embodiment of the vibration unit of the present invention assembled.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
As shown in fig. 1 to 3, the ultrasonic processing apparatus of the present invention includes: the vibration generator comprises a fixed seat 1, a rotating shaft 2 which is rotatably arranged in the fixed seat 1, and a vibration unit 3 which is arranged on the rotating shaft 2 and rotates along with the rotating shaft.
The fixing base 1 includes a hollow housing 11, a stepped seat hole 111 is formed in the housing 11, and a first bearing 12 and a second bearing 13 are alternately sleeved in the seat hole 111. As shown in fig. 3, an annular flange 112 for abutting against the first bearing 12 is protruded from an inner peripheral surface of the seat hole 111, so that the first bearing 12 and the second bearing 13 are disposed at an interval, and the first bearing 12 is directly contacted with an inner wall of the seat hole 111 and the annular flange 112; the second bearing 13 is sleeved in an insulating ring 14, the insulating ring 14 has a C-shaped cross section, a lower flange 141 protruding radially from one end of the insulating ring 14 abuts against the second bearing 13, and the insulating ring 14 and the sleeved second bearing 13 are sleeved on the inner wall of the seat hole 111 together during assembly, so that the second bearing 13 and the housing 11 form an insulating shape.
To provide a high frequency dc power to the vibrating unit 3, an electrical connector 15 is fixed on the outer peripheral surface of the housing 11, an electrode, such as a positive electrode, of the electrical connector 15 is coupled to the second bearing 13 by a first wire 151 (shown in fig. 3), such as a conductive spring, passing through a through hole 142 of the insulating ring 14 to form an electrical connection, and one side of the second bearing 13 is adjacent to a conductive ring 16 and is penetrated by an insulating sleeve 17. The cross section of the insulating sleeve 17 is T-shaped, and an upper flange 171 radially protruding from one end of the insulating sleeve abuts against the conductive ring 16, so that the conductive ring 16 and the second bearing 13 are positioned in an axial space defined by the upper flange 171 and the lower flange 141, so that the conductive ring 16 and the second bearing 13 can always maintain a contact relationship, thereby ensuring stable transmission of dc power. The other electrode, such as the negative electrode, of the electrical connector 15 is coupled to the housing 11, and since the housing 11 is in contact with the first bearing 12, the housing 11 is electrically connected to the first bearing 12.
The rotating shaft 2 has a stepped shaft 21, one end of which passes through a front cover ring 18 mounted in front of the housing 11 and is sleeved on the first bearing 12, and then a locking ring 211 is mounted to make the first bearing 12 sleeved on the shaft 21 and positioned between the front cover ring 18, the locking ring 211 and the annular flange 112, so that the shaft 21 is not axially separated from the housing 11. The shaft 21 is received in the seat hole 111 by the insulating sleeve 17 and an insulating positioning ring 172, and further connected to a handle 22 after passing through a rear cover ring 19 mounted at the rear of the housing 11. The other end of the shaft 21 is connected to an amplitude rod 23 outside the front cover ring 18.
Referring to fig. 3, the insulating sleeve 17 is sleeved on the conductive ring 16 and the second bearing 13, and the second bearing 13 is sleeved in an insulating ring 14, so that the insulating sleeve 17 and the conductive ring 16 can rotate at high speed along with the shaft 21. The free end of the tool holder 22 is axially provided with a plug-in connector 221, and the plug-in connector 221 is plugged into a main shaft of a processing machine, so that the tool holder 22, the shaft rod 21 and the amplitude rod 23 can rotate at a high speed along with the main shaft of the processing machine, and a tool (not shown) installed in the amplitude rod 23 can perform cutting operation.
A waterproof ring 181 is further interposed between the front cover ring 18 and the first bearing 12 to prevent liquid from entering the housing 11. In addition, the shaft 21 is provided with an accommodating space 212 axially adjacent to the amplitude rod 23 for accommodating the vibration unit 3.
Referring to fig. 1, 3 to 5, the vibrating unit 3 includes a plurality of piezoelectric sheets 31 and a conductive sheet set 32 having at least one first conductive sheet 321 and at least one second conductive sheet 322, the conductive sheet set 32 is used for forming the piezoelectric sheets 31 into a parallel configuration. The piezoelectric plates 31 are provided with an insulating inner ring 33 passing through and being adjacent to a packing member 34 at the rear, and a connecting member 35, such as a screw rod, passes through the packing member 34 and the insulating inner ring 33 and is mounted on the amplitude rod 23, so that the vibration unit 3 is axially connected to the amplitude rod 23 and is accommodated in the accommodating space 212 of the shaft rod 21. If the bonding member 35 is made of an insulating material, the insulating inner ring 33 can be eliminated.
The conductive ring 16 is connected to a second conductive wire 161, the second conductive wire 161 passes through a through hole 213 (shown in fig. 3) of the shaft 21 and the accommodating space 212, and is coupled to the at least one first conductive sheet 321, and the at least one second conductive sheet 322 is tightly attached to the amplitude rod 23 to form an electrical connection. Therefore, when a voltage source is connected to the electrical connector 15, one end (positive or negative) of the voltage source is connected to the at least one first conductive sheet 321 from one electrode of the electrical connector 15 through the first conductive wire 151, the second bearing 13, the conductive ring 16 and the second conductive wire 161; and the other end (negative or positive) of the voltage source is connected to the at least one second conductive sheet 322 from the other electrode of the electrical connector 15 through the housing 11, the first bearing 12, the shaft 21 and the amplitude bar 23 to provide high-frequency voltage to the piezoelectric sheets 31, so that the piezoelectric sheets 31 generate axial high-frequency vibration, and the tool can perform high-frequency oscillation cutting.
As shown in fig. 4 and 5, in order to enable the vibration unit 3 to generate an unexpected radial run-out vibration effect, a pair of slots 311 are provided on the front and rear facing surfaces of each piezoelectric sheet 31 so as to face each other, so that the piezoelectric sheets 31 generate a high-frequency vibration in the axial direction by the high-frequency voltage and also generate a radial run-out vibration effect by deformation caused by the presence of the slots 311. Therefore, the amplitude of the yaw generated by the vibration unit 3 can be determined by the difference in the installation position, depth, and width of the pair of slits 311 in each piezoelectric sheet 31. As shown in fig. 4 and 5, the pair of slits 311 is formed at the radial center position of the front and rear facing surfaces of each piezoelectric sheet 31, and therefore the radial runout width of the vibration unit 3 is bilaterally symmetric.
As shown in fig. 6 and 7, a second embodiment of the vibration unit 3 is shown, which is different from the first embodiment in that the pair of slots 311 are opened at the radial left positions of the front and rear facing surfaces of each piezoelectric plate 31, so that the vibration unit 3 generates a large rightward radial runout. On the contrary, if the pair of slits 311 are opened at the radial rightward positions of the front and rear facing surfaces of each piezoelectric sheet 31, the vibration unit 3 generates a large leftward radial runout.
As shown in fig. 8 and 9, a third embodiment of the vibrating unit 3 is shown, which is different from the first and second embodiments in that at least one side edge of the at least one first conductive sheet 321 and the at least one second conductive sheet 322 is cut off, so that at least one pair of hollow grooves 312 are formed on the front and back opposite surfaces of the at least one first conductive sheet 321, the at least one second conductive sheet 322 and each piezoelectric sheet 31. Under the action of the high-frequency voltage, the piezoelectric sheets 31 axially form high-frequency vibration, and simultaneously, the deformation caused by the hollow-out grooves 312 is utilized to generate radial deflection vibration effect. Therefore, the deviation amplitude generated by the vibration unit 3 can be determined by the difference of the positions, depths and widths of the hollow grooves 312 on the at least one first conductive sheet 321, the at least one second conductive sheet 322 and the piezoelectric sheets 31. As shown in fig. 8 and 9, the pair of hollow grooves 312 are formed at opposite positions on both sides of the front and rear opposite surfaces of each piezoelectric sheet 31, so that the radial runout amplitude of the vibration unit 3 is bilaterally symmetric.
Of course, the pair of hollow-out grooves 312 can be separately disposed at the radial left position of the front and back opposite surfaces of each piezoelectric plate 31, so that the vibration unit 3 generates a larger rightward radial deflection amplitude. On the contrary, if the hollow-out grooves 312 are separately formed at the radial right positions of the front and rear opposite surfaces of each piezoelectric plate 31, the vibration unit 3 generates a large leftward radial runout amplitude.
The vibration unit 3 can be used in the existing ultrasonic processing device, and can be installed in the main shaft of the ultrasonic processing machine, so that the tool installed on the main shaft has the functions of axial high-frequency vibration and radial deflection vibration.
When the ultrasonic processing apparatus is used, the tool holder 22 is driven by the main shaft of the processing machine, so that the shaft 21, the vibration unit 3, and the amplitude bar 23 drive the tool to rotate together, and simultaneously, one end (positive or negative) of the voltage source of the dc power supply is connected from one electrode of the electrical connector 15 to the at least one first conductive sheet 321 through the first wire 151, the second bearing 13, the conductive ring 16, and the second wire 161; the other end (negative or positive) of the voltage source is connected to the at least one second conductive sheet 322 from the other electrode of the electrical connector 15 through the housing 11, the first bearing 12, the shaft 21 and the amplitude rod 23 to provide a high-frequency voltage to the piezoelectric sheets 31, so that the piezoelectric sheets 31 generate axial high-frequency vibration, and the cutting tool rotates while performing a cutting mode of axial high-frequency vibration and radial high-frequency vibration by utilizing the radial deflection vibration of the slots 311 or the hollow-out grooves 312, so as to machine a surface of a workpiece (not shown).
Therefore, the present invention has been implemented to obtain the advantages that by using the design that the front and back facing surfaces of each piezoelectric plate are oppositely provided with a pair of slots, or at least one side edge is cut off from the peripheral surfaces of the at least one first conductive plate and the at least one second conductive plate, so that the front and back facing surfaces of the first and second conductive plates and each piezoelectric plate form at least a pair of hollow grooves, the piezoelectric plates generate axial high-frequency vibration, and the radial run-out vibration is generated by the deformation of the slots or the hollow grooves, so that the cutting tool performs the cutting mode of axial high-frequency vibration and radial run-out vibration while rotating. Moreover, the electric connector is directly arranged on the fixed seat, so when the ultrasonic processing device is connected to a main shaft of a common processing machine, the main shaft does not need to be modified and the wiring operation of a power supply is not needed, and the additional modification and the expenditure of the wiring cost are avoided. In addition, the conducting ring rotates together with the inner ring of the second bearing at high speed without abrasion, and the direct current power is transmitted through the outer ring, the balls and the inner ring of the second bearing, so that the carbon brush is not excessively abraded.
The disclosure of the present invention is a kind of technical solution that can be easily conceived by a person skilled in the art from the technical idea of the present invention without departing from the scope of patent rights of the present invention, and the present invention is partially changed or modified.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. An ultrasonic machining apparatus comprising:
a fixed seat, which comprises a shell, a seat hole with a first bearing and a second bearing sleeved in the shell at intervals, and an electric connector arranged on the outer peripheral surface of the shell, wherein an electrode of the electric connector is coupled with the second bearing through a first lead wire, so that the second bearing is electrically connected with a conducting ring adjacent to one side, and the second bearing and the conducting ring are sleeved in an insulating sleeve; the other electrode of the electric connector is coupled with the shell, so that the shell is electrically connected with the first bearing;
a rotating shaft which is provided with a shaft lever which is arranged in the shell and is sleeved with the first bearing and the insulating sleeve, one end of the shaft lever is connected with a cutter handle inserted in a main shaft of a processing machine, and the other end of the shaft lever is connected with an amplitude lever for installing a cutter; and
a vibration unit, which comprises a plurality of piezoelectric sheets and a conductive sheet group with at least one first conductive sheet and at least one second conductive sheet, wherein the conductive sheet group is used for forming the piezoelectric sheets into a parallel configuration, the piezoelectric sheets are adjacent to a packing piece, and a combination piece passes through the packing piece and the piezoelectric sheets and is connected to the amplitude rod; a second conducting wire of the conducting ring is coupled with the at least one first conducting sheet, and the at least one second conducting sheet is contacted with the amplitude rod to respectively form electrical connection; at least one side edge is cut off on the peripheral surfaces of the at least one first conducting sheet and the at least one second conducting sheet, so that at least one pair of hollow grooves are formed on the front and back opposite surfaces of the first conducting sheet and the second conducting sheet and each piezoelectric sheet, and the piezoelectric sheets axially form high-frequency vibration under the action of high-frequency voltage provided by the electric connector and simultaneously generate radial deflection vibration by utilizing deformation caused by the existence of the hollow grooves.
2. The ultrasonic processing apparatus according to claim 1, wherein the difference in the positions, depths and widths of the at least one first conductive sheet, the at least one second conductive sheet and the piezoelectric sheets of the pair of hollow grooves determines the amplitude of the deflection generated by the vibration unit.
3. The ultrasonic processing apparatus according to claim 1, wherein the second bearing is sleeved in an insulating ring, and the insulating ring is sleeved in the seat hole, so that the second bearing and the housing form an insulating shape; the first lead connected with the electric connector passes through a through hole of the insulating ring to form electric contact with the second bearing, wherein a lower blocking edge which is radially and convexly arranged at one end of the insulating ring abuts against the second bearing, and an upper blocking edge which is radially and convexly arranged at one end of the insulating sleeve abuts against the conducting ring, so that the conducting ring and the second bearing are positioned in an axial space defined by the upper blocking edge and the lower blocking edge.
4. The ultrasonic processing device according to claim 3, wherein the first wire is a conductive spring.
5. The ultrasonic processing apparatus of claim 1, wherein an annular flange is protruded from an inner peripheral surface of the seat hole, and one end of the shaft rod passes through a front cover ring attached to a front of the housing and is sleeved on the first bearing, and then a locking ring is attached to the first bearing so that the first bearing is sleeved on the shaft rod and is positioned between the front cover ring, the locking ring and the annular flange so that the shaft rod is not axially separated from the housing.
6. The ultrasonic processing device according to claim 5, wherein a waterproof ring is further interposed between the front cover ring and the first bearing.
7. The ultrasonic machining apparatus of claim 1, wherein the shaft engages the insulating sleeve and an insulating retaining ring within the housing bore and passes through a rear cover ring attached to the rear of the housing before engaging the tool holder.
8. The ultrasonic machining apparatus of claim 1, wherein the free end of the handle is axially provided with a connector that is connected to the spindle of the machine tool.
9. The ultrasonic machining apparatus according to claim 1, wherein a position of the shaft adjacent to the amplitude rod is provided with a housing space for housing the vibration unit in an axial direction.
10. The ultrasonic processing apparatus according to claim 1, wherein the piezoelectric plates are provided with an insulating inner ring through which they are inserted and then abut the packing member, and the joint member is inserted through the packing member and the insulating inner ring and attached to the amplitude rod.
11. A vibration unit for an ultrasonic processing machine or an ultrasonic processing device comprises a plurality of piezoelectric sheets and a conductive sheet group with at least one first conductive sheet and at least one second conductive sheet, wherein the conductive sheet group is used for forming the piezoelectric sheets into a parallel configuration, the piezoelectric sheets are adjacent to a clamping member, and a connecting piece penetrates through the clamping member and the piezoelectric sheets and is connected to an amplitude rod of the ultrasonic processing machine or the ultrasonic processing device; at least one side edge is cut off on the peripheral surface of the at least one first conducting sheet and the at least one second conducting sheet, so that at least one pair of hollow grooves are formed on the front and back opposite surfaces of the first conducting sheet and the second conducting sheet and each piezoelectric sheet, and the piezoelectric sheets axially form high-frequency vibration under the action of high-frequency voltage and simultaneously generate radial deflection vibration by utilizing deformation caused by the existence of the hollow grooves.
12. The vibration unit according to claim 11, wherein the difference in the positions, depths and widths of the hollowed-out grooves in the at least one first conductive sheet, the at least one second conductive sheet and the piezoelectric sheets determines the amplitude of the deflection generated by the vibration unit.
13. The vibrating unit of claim 11, wherein the at least one first conductive plate is coupled to a conductive ring by a conductive wire, and the at least one second conductive plate is in contact with the amplitude rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810238857.5A CN110293633B (en) | 2018-03-22 | 2018-03-22 | Ultrasonic machining apparatus and vibration unit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810238857.5A CN110293633B (en) | 2018-03-22 | 2018-03-22 | Ultrasonic machining apparatus and vibration unit thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110293633A CN110293633A (en) | 2019-10-01 |
| CN110293633B true CN110293633B (en) | 2022-10-18 |
Family
ID=68025568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810238857.5A Active CN110293633B (en) | 2018-03-22 | 2018-03-22 | Ultrasonic machining apparatus and vibration unit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110293633B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658820B (en) * | 2020-12-25 | 2022-05-10 | 深圳市特力威科技有限公司 | Ultrasonic conduction grinding module |
| CN114850903A (en) * | 2022-05-18 | 2022-08-05 | 深圳市特力威科技有限公司 | Ultrasonic knife handle structure of machine tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003169486A (en) * | 2001-11-30 | 2003-06-13 | Nisca Corp | Ultrasonic motor |
| CN1667934A (en) * | 2005-04-08 | 2005-09-14 | 清华大学 | Composite ultrasonic micromotor with slotted metal square column piezoelectric sheet |
| CN202021539U (en) * | 2010-12-21 | 2011-11-02 | 苏州工业职业技术学院 | Novel ultrasonic honing tool |
| CN203076678U (en) * | 2013-02-04 | 2013-07-24 | 丸荣机械股份有限公司 | Waterproof tool holder for rotational-vibration machining |
| CN103354431A (en) * | 2013-06-28 | 2013-10-16 | 南京航空航天大学 | Longitudinal and bending composite mode sandwich-type ultrasonic motor oscillator |
-
2018
- 2018-03-22 CN CN201810238857.5A patent/CN110293633B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003169486A (en) * | 2001-11-30 | 2003-06-13 | Nisca Corp | Ultrasonic motor |
| CN1667934A (en) * | 2005-04-08 | 2005-09-14 | 清华大学 | Composite ultrasonic micromotor with slotted metal square column piezoelectric sheet |
| CN202021539U (en) * | 2010-12-21 | 2011-11-02 | 苏州工业职业技术学院 | Novel ultrasonic honing tool |
| CN203076678U (en) * | 2013-02-04 | 2013-07-24 | 丸荣机械股份有限公司 | Waterproof tool holder for rotational-vibration machining |
| CN103354431A (en) * | 2013-06-28 | 2013-10-16 | 南京航空航天大学 | Longitudinal and bending composite mode sandwich-type ultrasonic motor oscillator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110293633A (en) | 2019-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110293633B (en) | Ultrasonic machining apparatus and vibration unit thereof | |
| CN109500410B (en) | High-frequency vibration main shaft system | |
| US10843283B2 (en) | Apparatus and method for electrically machining | |
| KR20060010833A (en) | Cutting tool configured for improved engagement with a tool holder | |
| CN110170668B (en) | Power supply main shaft for ultrasonic knife handle | |
| TWI657869B (en) | Ultrasonic processing device and its vibration unit | |
| EP4269021A1 (en) | Ultrasonic conduction grinding module | |
| TWM565609U (en) | Ultrasonic processing device | |
| KR101419493B1 (en) | Rotary tissue cutting device | |
| AU2013285687B2 (en) | Beveling / chamfering tool - router head for metal | |
| EP3608053A1 (en) | Chip-collecting device | |
| CN212857932U (en) | Milling cutter device | |
| CN210589418U (en) | Cutter for grooving decorative plate | |
| CN211840831U (en) | Back chipping tool for ultrasonic plane machining | |
| CN211115802U (en) | Drill bit with diamond compact and rotary drilling rig | |
| KR101604850B1 (en) | Spindle electro discharge machining device with ultrasonic vibration | |
| CN210297481U (en) | Spiral contact piece commutator capable of reducing noise | |
| CN113560611A (en) | Bidirectional wave ultrasonic automatic tool changing electric spindle | |
| JP2003117709A (en) | Machine tool | |
| JP2013071201A (en) | Cutting tool and cut angle adjusting method of the same | |
| CN111283381A (en) | Back chipping tool for ultrasonic plane machining | |
| JPH0632919B2 (en) | Rotary punching machine | |
| CN113814479B (en) | Electric V-shaped slotting vibrating knife | |
| CN210548371U (en) | Milling cutter processing and positioning device | |
| JP3591148B2 (en) | Rotary cutting tool blade |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No. 309-b383, 3rd floor, port building, shipping center, 59 Linhai Avenue, Nanshan street, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong 518000 Applicant after: SHENZHEN TELIWEI TECHNOLOGY Co.,Ltd. Address before: 518000 Room 201, building A, 1 front Bay Road, Shenzhen Qianhai cooperation zone, Shenzhen, Guangdong Applicant before: SHENZHEN TELIWEI TECHNOLOGY Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |