TW202222480A - Ultrasonic conduction grinding module including a vibration source, a steering member, and an amplitude rod - Google Patents

Abstract

An ultrasonic conduction grinding module includes a vibration source, a steering member, and an amplitude rod. The vibration source includes a plurality of piezoelectric sheets and a conductive sheet set having at least one first conductive sheet and at least one second conductive sheet. The conductive sheet set is configured to have the piezoelectric sheets form in a parallel configuration, and the piezoelectric sheets are adjacent to an elastic body. A coupling member is configured to pass through the elastic body and the piezoelectric sheets. The steering member is configured to allow the coupling member to pass through, and is provided with a conical body on the outer side. The inner side of the amplitude rod is radially protrudingly provided with a connecting ring, and the outer side thereof is axially extended with a shaft rod which is connected to at least one grinding wheel. The inner side of the shaft rod is axially provided with a conical groove which is complementary to the taper of the conical body. The inner side of the shaft rod is further axially provided with a locking hole which communicates with the conical groove and is configured to lock the coupling member.

Description

Ultrasonic conduction grinding module

The present case relates to a grinding device, especially an ultrasonic conduction grinding module which has axial high-frequency vibration and provides at least one grinding wheel with radial high-frequency vibration.

A press grinder is a processing machine that uses a grinding wheel, such as a grinding wheel, to grind off the excess of a workpiece to obtain the desired shape, size or precision machined surface of the workpiece. In the process of grinding the workpiece in the existing grinder, the accompanying workpiece debris will accumulate on the grinding wheel, which must be removed, such as washing with water, which is quite troublesome and inconvenient; at the same time, it cannot improve the grinding efficiency and reduce the wear of the grinding disc.

In fact, the application of ultrasonic technology has been widely used in cutting machines, that is, taking the ultrasonic spindle as an example, it mainly uses the high-frequency vibration of an ultrasonic vibration source to make a tool installed on the spindle can High-frequency oscillation is generated, so that the tool can effectively reduce the cutting resistance, so as to separate the particles on the surface of the workpiece one by one. When the workpiece is a hard and brittle material, such as glass, ceramics, zirconium dioxide..., if it can be processed by an ultrasonic processing machine, not only can the chips generated by processing become thinner, but also Can prolong the service life of the tool.

Therefore, how to configure an ultrasonic vibration source in the grinding machine, so that the grinding wheel can use the high-frequency vibration of the ultrasonic vibration source in the process of grinding the workpiece, so that the workpiece debris produced in the grinding process can be Falling off due to the radial vibration of the grinding wheel is a problem that the related industry needs to overcome urgently.

The main purpose of this case is to provide an ultrasonic conduction grinding module, which can be directly built into a grinding machine or installed in a knife handle, so that the workpiece debris produced in the grinding process can be transmitted through the ultrasonic conduction. Under the action of the grinding module, the radial high-frequency vibration formed by at least one grinding wheel is allowed to fall out, and at the same time, the advantages of improving the grinding efficiency and reducing the wear of the grinding sheet can be obtained.

In order to achieve the aforementioned purpose, the technical means adopted in this case is to provide an ultrasonic conductive grinding module, which includes a vibration source, which includes a plurality of piezoelectric sheets and has at least one first conductive sheet and at least one second conductive sheet. A conductive sheet group, the conductive sheet group is used to form a parallel configuration of the piezoelectric sheets, and the piezoelectric sheets are adjacent to an elastic body, and a bonding element passes through the elastic body and the piezoelectric sheets sheet; a turning piece for the coupling piece to pass through, and a conical body is arranged on the outer side; and an amplitude rod, the inner side of which is radially protruded with a connecting ring, and the outer side is axially extended to connect at least one grinding wheel. A shaft rod, the inner side of the shaft rod is axially provided with a conical groove that is complementary to the taper of the cone; and the shaft rod is axially provided with a locking connection that communicates with the conical groove and is locked by the coupling piece. Holes; when a regular frequency and a positive voltage are applied, the piezoelectric sheets are alternately elongated and restored to generate axial high-frequency vibrations, and the axial high-frequency vibrations are transmitted to the steering member in a complementary form When the conical body and the conical groove of the amplitude rod are formed, radial high-frequency vibration is formed.

In one embodiment, the steering member is made of metal, and its inner side is adjacent to one of the second conductive sheets to form an electrical connection.

In order to achieve the aforementioned purpose, another technical means adopted in this case is to provide an ultrasonic conductive grinding module, which includes a vibration source, which includes a plurality of piezoelectric sheets and has at least one first conductive sheet and at least one second conductive sheet. A conductive sheet group of the conductive sheet, the conductive sheet group is used to form a parallel configuration of the piezoelectric sheets, and the piezoelectric sheets are adjacent to an elastic body, and a bonding element is passed through the elastic body and the Piezoelectric sheet; an amplitude rod, the inner side of which is radially protruded with an adapter ring, and the outer side is axially extended to a shaft rod for connecting at least one grinding wheel, the outer side of the shaft rod is axially provided with a conical groove, and the outer side is axially extended. A rod slot communicated with the conical slot is opened to the side; a relay rod is provided for the coupling piece to pass through and is sleeved in the rod slot; and a steering member has a set set in the rod slot A conical body in the conical groove and with a complementary taper to the conical groove, the conical body is adjacent to the relay rod, and a screw hole is axially opened for the coupling piece to be locked; when a regular frequency and The negative voltage causes the piezoelectric sheets to be squeezed and restored alternately to generate axial high-frequency vibrations, and the axial high-frequency vibrations are transmitted to the cone of the steering member and the amplitude rod of the complementary type. When the tapered groove is formed, radial high-frequency vibration is formed.

In one embodiment, the relay rod is made of metal, and the inner side of the relay rod is adjacent to one of the second conductive sheets to form an electrical connection.

In one embodiment, the adapter ring has a plurality of connecting holes in the axial direction, and each of the connecting holes is used for a connecting piece to pass through, and is locked to a processing machine or a knife handle, so that the ultrasonic conduction grinding module can be It rotates synchronously with the processing machine or the tool holder.

In one embodiment, the at least one grinding wheel includes a first grinding wheel and a second grinding wheel; the first grinding wheel and the second grinding wheel are connected to the shaft, and the shaft is in the first grinding wheel. A spacer ring is further connected between the grinding wheel and the second grinding wheel.

As shown in FIG. 1 to FIG. 6 , the first embodiment of the ultrasonic conduction grinding module in this case includes a vibration source 1 , a turning member 2 , an amplitude rod 3 , and at least one grinding wheel 4 .

As shown in FIG. 1 and FIG. 2 , the vibration source 1 includes a plurality of piezoelectric sheets 11 and a conductive sheet group 12 having at least one first conductive sheet 121 and at least one second conductive sheet 122 . The conductive sheet group 12 uses In order to form a parallel configuration of the piezoelectric sheets 11 . The piezoelectric sheets 11 are provided with an insulating inner ring 13 to pass through and an elastic body 14, such as a polymer elastic material, such as rubber or silicone rubber, is adjacent to the rear; The insulating inner ring 13 and the steering member 2 are connected to the amplitude rod 3 , so that the vibration source 1 is axially connected to the amplitude rod 3 .

In another embodiment, when the coupling member 15 is made of insulating material, the insulating inner ring 13 can be omitted.

A through hole 21 is axially provided in the steering member 2 for the coupling member 15 to pass through. The steering member 2 is made of metal, such as copper or copper alloy, and one side, such as the inner side, is adjacent to the second conductive sheets 122 One piece is formed to form an electrical connection, and the other side, eg, the outer side, is provided with a cone 22 .

The amplitude rod 3 is a T-shaped base, one side, such as the inner side, is radially protruded with a connecting ring 31. The connecting ring 31 has a plurality of connecting holes 311 in the axial direction. (not shown in the figure), and then locked to a conventional processing machine, such as a main shaft, or a knife handle, or a flange of a grinding machine, so that the ultrasonic conduction grinding module can follow the main shaft. , the tool holder or the flange rotates synchronously. The processing machine is selected from a surface grinder, an outer diameter grinder, an inner hole grinder, and the like. Furthermore, the other side of the amplitude rod 3 , such as the outer side, axially extends a shaft 32 for connecting the at least one grinding wheel 4 . A conical groove 321 ; and a locking hole 322 (please refer to FIG. 5 ) is axially disposed in the shaft rod 32 which is communicated with the conical groove 321 and is used for the coupling element 15 to be locked.

Please refer to FIG. 1 again, the at least one grinding wheel 4 includes a first grinding wheel 41 and a second grinding wheel 42 . The first grinding wheel 41 has an adapter, such as tightly fitting the first sleeve hole 411 of the shaft 32; and the second grinding wheel 42 has an adapter, such as tightly fitting the second hole 411 of the shaft 32 Sleeve 421. In order to separate the first grinding wheel 41 and the second grinding wheel 42, the shaft 32 is further connected between the first grinding wheel 41 and the second grinding wheel 42, for example, a spacer ring 43 is tightly fitted .

The first grinding wheel 41 and the second grinding wheel 42 can select grinding wheels with different meshes according to grinding requirements. Therefore, when a workpiece, such as a milling cutter, can be ground for the first time on the first grinding wheel 41, Then, the second grinding wheel 42 is used for detailed grinding. Therefore, through the implementation of this case, it is possible to select grinding wheels with different mesh numbers. For example, the first grinding wheel 41 and the second grinding wheel 42 are separately ground to avoid replacement and grinding. round inconvenience.

According to the above description of the moving parts and the connection relationship, the three-dimensional shape of the first embodiment of the ultrasonic conduction grinding module after being assembled is shown in FIGS. 3 and 4 , and the connecting ring of the ultrasonic conduction grinding module After each connecting hole 311 of 31 is penetrated by a connecting piece, it is locked to the spindle, the tool handle or the flange, so that the ultrasonic conduction grinding module can be synchronized with the spindle, the tool handle or the flange rotate.

Please refer to FIG. 5 and FIG. 6 , when the ultrasonic conduction grinding module is in use, one end (positive pole) of a voltage source of the spindle or the handle is connected to the at least one first conductive sheet 121 ; and the other end of the voltage source is connected to the at least one first conductive sheet 121 The (negative pole) is connected to the at least one second conductive sheet 122 . When a positive voltage is applied to the surface of the piezoelectric sheets 11, the electric dipole moment will be elongated due to the action of the electric field, so that the piezoelectric sheets 11 will be elongated along the direction of the electric field in order to resist the change (as shown by arrow A in FIG. 5 ). Therefore, when a regular frequency and positive voltage are applied, the piezoelectric sheets 11 will be elongated and restored to generate axial high-frequency vibration B (shown in the axial plural arcs in FIG. 5 ). When the axial high-frequency vibrations B are transmitted to the conical body 22 of the steering member 2 and the conical groove 321 of the amplitude rod 3 in the complementary form, radial high-frequency vibrations C are formed (shown in FIG. 5 and A plurality of arcs in the radial direction in FIG. 6 ), so that the workpiece debris produced by the workpiece during the grinding process can be dropped under the action of the radial high-frequency vibration C.

As shown in FIG. 7 and FIG. 8 , which respectively show an exploded perspective view and a cross-sectional view of the second embodiment of the ultrasonic conductive grinding module of the present application. Compared with the first embodiment, the second embodiment has the same Reference numerals (symbols) are used to denote the same components. Since the second embodiment shares many common components with the first embodiment, only the differences between the two will be described in detail later.

The amplitude rod 3 is also a T-shaped base body, and a connecting ring 31 protrudes radially on one side, such as the inner side thereof, and a plurality of connecting holes 311 are formed in the axial direction of the connecting ring 31 . The other side, eg the outer side, of the amplitude rod 3 axially extends a shaft 32 for connecting the at least one grinding wheel 4 . A tapered groove 321 is axially defined on the outer side of the shaft rod 32 , and a rod groove 323 communicated with the tapered groove 321 is defined on the other side, ie, the inner side.

In addition, a relay rod 5 is sleeved in the rod groove 323 , and a through hole 51 is axially defined in the relay rod 5 for the coupling element 15 to pass through. The relay rod 5 is made of metal, such as copper or copper alloy, and one side of the relay rod 5, such as the inner side, is adjacent to one of the second conductive sheets 122 to form an electrical connection.

The steering member 2 has a conical body 22 which is set in the conical groove 321 and has a taper complementary to the conical groove 321 . The conical body 22 is adjacent to the relay rod 5 and axially opens for the coupling member 15 A screw hole 23 for locking.

According to the above description of the moving parts and the connection relationship, the cross-sectional shape of the second embodiment of the ultrasonic conductive grinding module after being assembled is shown in FIG. After the connecting hole 311 is penetrated by a connecting piece, it is locked to the spindle, the tool handle or the flange, so that the ultrasonic conduction grinding module can rotate synchronously with the spindle, the tool handle or the flange.

Please refer to FIG. 8 again, when the ultrasonic conduction grinding module is in use, one end (positive pole) of a voltage source of the spindle or the tool handle is connected to the at least one first conductive sheet 121; and the other end (negative pole) of the voltage source ) is connected to the at least one second conductive sheet 122 . When a negative voltage is applied to the surface of the piezoelectric sheets 11, the electric dipole moment will be squeezed due to the action of the electric field, so that the piezoelectric sheets 11 will be squeezed along the direction of the electric field in order to resist the change (as shown by arrow A in FIG. 8 ). Therefore, when a regular frequency and a negative voltage are applied, the piezoelectric sheets 11 will be squeezed and restored to generate axial high-frequency vibration B (shown in FIG. 8 as a plurality of axial arcs). When the axial high-frequency vibrations B are transmitted to the conical body 22 of the steering member 2 and the conical groove 321 of the amplitude rod 3 in a complementary form, radial high-frequency vibrations C are formed (shown in FIG. 8 ). A plurality of arcs in the radial direction), so that the workpiece debris produced by the workpiece during the grinding process can be dropped under the action of the radial high-frequency vibration C.

Therefore, through the implementation of this case, the effect obtained is that when the axial high-frequency vibrations are transmitted to the conical body of the steering member and the conical groove of the amplitude rod, which are in complementary shapes, a radial height is formed. The high frequency vibration of the workpiece enables the workpiece debris produced by the workpiece during the grinding process to fall off under the action of the radial high frequency vibration, and at the same time, the advantages of improving the grinding efficiency and reducing the wear of the grinding sheet can be obtained. Furthermore, the ultrasonic conduction grinding module can be locked to the main shaft or the tool holder, so that the ultrasonic conduction grinding module can rotate synchronously with the main shaft or the tool holder. In particular, the amplitude rod of the ultrasonic conduction grinding module can be connected to at least one grinding wheel. For example, the first grinding wheel and the second grinding wheel can be used for grinding operations respectively, so as to avoid the inconvenience of replacing the grinding wheels, which can be regarded as similar items. A masterpiece never seen before.

What is disclosed in this case is one of the preferred embodiments, and any partial changes or modifications originating from the technical ideas of this case and easily inferred by those skilled in the art are within the scope of the patent right of this case.

1: Vibration source 11: Piezoelectric sheet 12: Conductive sheet group 121: The first conductive sheet 122: Second conductive sheet 13: Insulation inner ring 14: Elastomer 15: Bonding pieces 2: steering parts 21: Perforation 22: Cone 23: Screw holes 3: Amplitude rod 31: Ring 311: Connection hole 32: Axle 321: Tapered groove 322: Locking hole 323: Rod slot 4: Grinding wheel 41: The first grinding wheel 411: The first set of holes 42: Second grinding wheel 421: Second set of holes 43: Spacer Ring 5: Relay rod 51: Through hole A: Arrow B: Axial high frequency vibration C: Radial high frequency vibration

In order to further reveal the specific technical content of this case, please refer to the drawings first, in which: Fig. 1 is the three-dimensional exploded view of the first embodiment of the ultrasonic conduction grinding module of this case; Fig. 2 is the perspective exploded view of the vibration source of this case; 3 is a perspective view of the first embodiment of the ultrasonic conduction grinding module in this case after being assembled; FIG. 4 is a perspective view from another perspective after the first embodiment of the ultrasonic conduction grinding module of the present case is assembled; 5 is a cross-sectional view of the first embodiment of the ultrasonic conduction grinding module in the grinding process; Fig. 6 is the ultrasonic transmission schematic diagram in the grinding process shown in Fig. 5; FIG. 7 is an exploded perspective view of the second embodiment of the ultrasonic conduction grinding module of the present invention; and FIG. 8 is a cross-sectional view of the first embodiment of the ultrasonic conductive grinding module in the grinding process.

1: Vibration source

11: Piezoelectric sheet

12: Conductive sheet group

121: The first conductive sheet

122: Second conductive sheet

13: Insulation inner ring

14: Elastomer

15: Bonding pieces

2: steering parts

21: Perforation

22: Cone

3: Amplitude rod

31: Ring

311: Connection hole

32: Axle

321: Tapered groove

322: Locking hole

4: Grinding wheel

41: The first grinding wheel

411: The first set of holes

42: Second grinding wheel

421: Second set of holes

43: Spacer Ring

A: Arrow

B: Axial high frequency vibration

C: Radial high frequency vibration

Claims (7)

An ultrasonic conduction grinding module, comprising: a vibration source, comprising a plurality of piezoelectric sheets and a conductive sheet group having at least one first conductive sheet and at least one second conductive sheet, the conductive sheet group is used to form a parallel configuration of the piezoelectric sheets, And the piezoelectric sheets are adjacent to an elastic body, and a bonding element is passed through the elastic body and the piezoelectric sheets; An amplitude rod, the inner side of which is radially protruded with an adapter ring, and the outer side is axially extended to a shaft for connecting at least one grinding wheel, the inner side of the shaft is axially provided with a conical groove that is complementary to the taper of the cone ; and another axially arranged in the shaft rod is connected with the conical groove and is provided with a locking hole for the locking of the coupling piece; a turning member, which is passed through by the coupling member, and has a conical body on the outer side; and An amplitude rod, the inner side of which is radially protruded with an adapter ring, and the outer side is axially extended to a shaft for connecting at least one grinding wheel, the inner side of the shaft is axially provided with a conical groove that is complementary to the taper of the cone ; and another axially arranged in the shaft rod is connected with the conical groove and is provided with a locking hole for the locking of the coupling piece; When a regular frequency and a positive voltage are applied, the piezoelectric sheets are alternately elongated and restored to generate axial high-frequency vibrations, and the axial high-frequency vibrations are transmitted to the complementary shape of the steering member. The conical body and the conical groove of the amplitude rod form radial high-frequency vibration. The ultrasonic conductive grinding module as described in claim 1, wherein the steering member is made of metal, and its inner side is adjacent to one of the second conductive sheets to form electrical connection. An ultrasonic conduction grinding module, comprising: a vibration source, comprising a plurality of piezoelectric sheets and a conductive sheet group having at least one first conductive sheet and at least one second conductive sheet, the conductive sheet group is used to form a parallel configuration of the piezoelectric sheets, And the piezoelectric sheets are adjacent to an elastic body, and a bonding element is passed through the elastic body and the piezoelectric sheets; an amplitude rod, the inner side of which is radially protruded with an adapter ring, and the outer side is axially extended with a shaft rod for connecting at least one grinding wheel, the outer side of the shaft rod is axially provided with a conical groove, and the opposite side is provided with A rod slot communicated with the tapered slot; a relay rod for passing through the coupling element and sleeved in the rod groove; and A steering member, which has a set of conical bodies set in the conical groove and the taper complementary to the conical groove, the conical body is adjacent to the relay rod, and a shaft for locking the coupling member is axially opened screw hole; When a regular frequency and a negative voltage are applied, the piezoelectric sheets are squeezed and restored alternately to generate axial high-frequency vibrations, and the axial high-frequency vibrations are transmitted to the complementary type of the steering member. The conical body and the conical groove of the amplitude rod form radial high-frequency vibration. The ultrasonic conductive grinding module as described in claim 1, wherein the relay rod is made of metal, and the inner side of the relay rod is adjacent to one of the second conductive sheets to form an electrical connection. The ultrasonic conductive grinding module as described in claim 1 or 3, wherein the adapter ring has a plurality of connecting holes in the axial direction. , a knife handle or a flange of a grinding machine, so that the ultrasonic conduction grinding module can rotate synchronously with the processing machine, the knife handle or the flange. The ultrasonic conduction grinding module as described in claim 5, wherein the processing machine is selected from a surface grinder, an outer diameter grinder or an inner hole grinder. The ultrasonic conduction grinding module according to claim 1 or 3, wherein the at least one grinding wheel comprises a first grinding wheel and a second grinding wheel; the first grinding wheel and the second grinding wheel are connected to each other. It is mounted on the shaft rod, and the shaft rod is further connected with a spacer ring between the first grinding wheel and the second grinding wheel.

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