CN211330126U - Ultrasonic clamp, ultrasonic vibration mechanism and ultrasonic reversing block - Google Patents

Abstract

The utility model relates to an ultrasonic wave anchor clamps, ultrasonic vibration mechanism and ultrasonic wave switching-over piece, the relative both sides of ultrasonic wave switching-over piece are equipped with vibration input portion, and the top is equipped with vibration output portion, and inside has been seted up at least one switching-over and has been enlarged hole and even number and gather and to be able to enlarge the hole, and even number gathers and to enlarge the center pin axial symmetry setting of hole about ultrasonic wave switching-over piece, and the center pin both sides gather and to enlarge the interval between the hole and reduce gradually along vertical direction that makes progress of center pin both. Therefore, the ultrasonic vibration is transmitted to the ultrasonic reversing block from the vibration input part in the horizontal direction, the ultrasonic is reversed and amplified through the reversing amplifying hole, then transmitted to the energy-gathering amplifying hole for further energy gathering and amplification, and then transmitted to the vibration output part for output, so that the ultrasonic vibration in the horizontal direction can be converted into the vertical direction, the height of the ultrasonic clamp is effectively reduced from the overall structure form, the energy-gathering amplifying can be carried out on the ultrasonic vibration, and the height of the ultrasonic clamp is reduced from the size.

Description

Ultrasonic clamp, ultrasonic vibration mechanism and ultrasonic reversing block

Technical Field

The utility model relates to an ultrasonic machining technical field especially relates to an ultrasonic wave anchor clamps, ultrasonic vibration mechanism and ultrasonic wave switching-over piece.

Background

The 5G is divided into a low frequency band and a high frequency band. In a high-frequency band with higher efficiency, the communication wavelength is millimeter-sized, and the high-frequency band is very sensitive to metal, and the metal can directly shield signals. Therefore, the glass and ceramic rear cover has a greater replacing trend in the high-frequency band of 5G.

Both glass and ceramic are hard and brittle materials. At present, the existing mobile phone glass cover plate on the market is generally processed by an ultrasonic mode. The ultrasonic clamp is arranged on the workbench, the mobile phone glass cover plate is fixed on the ultrasonic clamp when machining is carried out, ultrasonic vibration is transmitted to the mobile phone glass cover plate through the ultrasonic clamp, and meanwhile, the CNC tool bit carries out cutting machining on the mobile phone glass cover plate.

The traditional ultrasonic clamp generally comprises ceramic plates which are arranged in a double number, and a front cover plate and a rear cover plate which are positioned at two sides of the ceramic plates; the direction of the ultrasonic vibration is set along the axes directions of the ceramic plate and the front and rear cover plates (i.e. along the vertical direction in the working state). However, the CNC processing machine for processing the glass cover plate of the mobile phone allows the ultrasonic clamp to be installed at a lower height, so that the conventional ultrasonic clamp cannot be applied to the CNC processing machine for processing the glass cover plate of the mobile phone.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide an ultrasonic clamp, an ultrasonic vibration mechanism, and an ultrasonic reversing block which can effectively reduce the overall height of the ultrasonic clamp and are suitable for a CNC processing machine tool.

The ultrasonic reversing block is characterized in that vibration input parts are arranged on two opposite sides of the ultrasonic reversing block, a vibration output part is arranged at the top of the ultrasonic reversing block, at least one reversing amplifying hole and an even number of energy-gathering amplifying holes are formed in the ultrasonic reversing block, the even number of energy-gathering amplifying holes are axially and symmetrically arranged relative to a central shaft of the ultrasonic reversing block, and the distance between the energy-gathering amplifying holes on two sides of the central shaft is gradually reduced along the vertical upward direction.

In one embodiment, the reversing amplifying holes are arranged at intervals in the vertical direction, an even number of the energy-collecting amplifying holes are axially and symmetrically positioned at two opposite sides of the reversing amplifying hole, the lowest position of the energy-collecting amplifying hole positioned at the lowest position is lower than the highest position of the reversing amplifying hole positioned at the uppermost position, and the highest position of the energy-collecting amplifying hole positioned at the uppermost position is higher than the highest position of the reversing amplifying hole positioned at the uppermost position.

In one embodiment, the number of the reversing amplifying holes is one, the central axis of the reversing amplifying holes coincides with the central axis of the ultrasonic reversing block, the number of the energy collecting amplifying holes is two, and the two energy collecting amplifying holes are axially symmetrical about the central axis.

In one embodiment, the two energy-gathering amplifying holes are positioned on two opposite sides of the reversing amplifying hole, the lowest position of the energy-gathering amplifying hole is lower than the highest position of the reversing amplifying hole, and the highest position of the energy-gathering amplifying hole is higher than the highest position of the reversing amplifying hole.

In one embodiment, the ultrasonic reversing block has a first side surface, a second side surface, a third side surface and a fourth side surface, the first side surface is opposite to the second side surface, the third side surface is opposite to the fourth side surface, the first side surface is adjacent to the third side surface and the fourth side surface, the second side surface is adjacent to the third side surface and the fourth side surface, the first side surface and the second side surface are provided with assembling holes, the assembling holes are communicated with the reversing amplifying holes, and the reversing amplifying holes and the energy-gathering amplifying holes penetrate through the third side surface and the fourth side surface.

In one embodiment, inclined surfaces are arranged between the first side surface and the top of the ultrasonic reversing block and between the second side surface and the top of the ultrasonic reversing block, and the distance between the two inclined surfaces is gradually reduced along the vertical upward direction.

In one embodiment, the inclined plane has an inclination angle which is different from the inclination angle of the energy-gathering and amplifying hole by 0 ° -5 °.

In one embodiment, a first vacuum suction hole is formed in the top of the ultrasonic reversing block, a second vacuum suction hole is formed in the side surface of the ultrasonic reversing block adjacent to the vibration input part, and the first vacuum suction hole is communicated with the second vacuum suction hole.

An ultrasonic vibration mechanism comprising:

the ultrasonic reversing block of any preceding claim; and

and the two ultrasonic transducers are respectively assembled on the vibration input parts at two opposite sides of the ultrasonic reversing block.

An ultrasonic clamp, comprising:

a base;

the shell is covered on the base and forms an accommodating cavity together with the base, and the top surface of the shell is provided with an opening;

in the ultrasonic vibration mechanism, the ultrasonic reversing block is fixed on the base, the ultrasonic transducer and the ultrasonic reversing block are both located in the accommodating cavity, and the vibration output part protrudes out of the shell through the opening; and

and the vibration table is fixed on the vibration output part.

The ultrasonic reversing block at least has the following advantages:

when in use, the two ultrasonic transducers are respectively assembled at the vibration input parts at two opposite sides of the ultrasonic reversing block, because the vibration output part is arranged at the top of the ultrasonic reversing block, at least one reversing amplifying hole and even numbered energy-gathering amplifying holes are arranged in the ultrasonic reversing block, the even numbered energy-gathering amplifying holes are arranged in axial symmetry relative to the central shaft of the ultrasonic reversing block, and the distance between the energy-gathering amplifying holes at two sides of the central shaft is gradually reduced along the vertical upward direction, the ultrasonic vibration generated by the ultrasonic transducers is transmitted to the ultrasonic reversing block from the vibration input part in the horizontal direction, the ultrasonic is reversed and amplified through the reversing amplifying holes, then is transmitted to the energy-gathering amplifying holes for further energy gathering and amplification, and then is transmitted to the vibration output part for output, thereby not only converting the ultrasonic vibration in the horizontal direction into the vertical direction, and effectively reducing the height of the ultrasonic clamp from the whole structure form, the ultrasonic vibration can be subjected to energy gathering and amplification, the height of the ultrasonic clamp is reduced in size, and the overall height of the ultrasonic clamp is reduced in combination with the structure and the size so as to be suitable for a CNC (computer numerical control) machine tool.

Drawings

FIG. 1 is a schematic diagram of an ultrasonic clamp according to one embodiment;

FIG. 2 is a schematic structural view of the ultrasonic clamp of FIG. 1 from another perspective;

FIG. 3 is a cross-sectional view of the ultrasonic clamp of FIG. 1;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a partial schematic view of FIG. 1;

FIG. 6 is an exploded view of FIG. 5;

FIG. 7 is a schematic structural view of the ultrasonic reversing block of FIG. 6;

fig. 8 is a schematic structural view of the vibration table of fig. 7.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Referring to fig. 1 to 3, an ultrasonic clamp 10 according to an embodiment is used for processing a hard and brittle material such as a mobile phone glass cover plate in an ultrasonic mode, when the ultrasonic clamp 10 is in operation, the mobile phone glass cover plate is fixed on the ultrasonic clamp 10, ultrasonic vibration is transmitted to the mobile phone glass cover plate through the ultrasonic clamp 10, and a CNC tool bit cuts the mobile phone glass cover plate. The ultrasonic clamp 10 includes a base 100, a housing 200, an ultrasonic reversing block 300, an ultrasonic transducer 400, a vibration table 500 and a workpiece bearing table 600.

Specifically, the housing 200 covers the base 100 and encloses an accommodating cavity 100a together with the base 100. For example, the base 100 has a plate-like structure, the housing 200 has a shell-like structure, and the base 100 is disposed at the bottom of the housing 200 and seals the bottom of the housing 200. Alternatively, the base 100 is fastened to the bottom of the housing 200 by a fastener such as a screw. A sealing member may be further disposed between the base 100 and the housing 200 to increase the sealability between the base 100 and the housing 200.

Further, the bottom of the housing 200 is further provided with a mounting plate 210, the mounting plate 210 is provided with a mounting hole 211, and the mounting hole 211 is penetrated by a fastener such as a screw to fix the housing 200 on the machine tool workbench. For example, the mounting plate 210 may be integrally formed with the housing 200, and the mounting hole 211 may be an elongated hole to facilitate adjustment of the position of the ultrasonic clamp 10.

The ultrasonic reversing block 300 is fixed on the base 100, and the ultrasonic reversing block 300 is located in the accommodating cavity 100 a. Specifically, the two opposite sides of the ultrasonic reversing block 300 are provided with vibration input parts 310, the top of the ultrasonic reversing block 300 is provided with a vibration output part 320, at least one reversing amplification hole 330 and an even number of energy-collecting amplification holes 340 are formed in the ultrasonic reversing block 300, the even number of energy-collecting amplification holes 340 are axially and symmetrically arranged relative to the central axis of the ultrasonic reversing block 300, and the distance between the energy-collecting amplification holes 340 on the two sides of the central axis is gradually reduced along the vertical upward direction. The reversing amplification hole 330 is used for reversing and amplifying the ultrasonic vibration in the horizontal direction for the first time, the energy-collecting amplification holes 340 are used for reversing and amplifying the ultrasonic vibration for the second time, and the distance between the energy-collecting amplification holes 340 on the two sides of the central shaft is gradually reduced along the vertical upward direction, so that the energy-collecting amplification holes 340 perform the second time of reversing on the ultrasonic vibration and then converge on the vibration output part 320, and a certain energy-collecting effect is achieved.

The ultrasonic transducer 400 is located in the accommodating chamber 100a, and the ultrasonic transducer 400 is mounted to the vibration input portion 310. Specifically, the number of the ultrasonic transducers 400 is two, and the two ultrasonic transducers 400 are respectively mounted on the two vibration input portions 310. Therefore, the ultrasonic vibration in the horizontal direction generated by the ultrasonic transducer 400 is transmitted to the ultrasonic wave reversing block 300 through the vibration input portion 310, and is reversed and amplified by the ultrasonic wave reversing block 300 and then output to the vibration table 500 through the vibration output portion 320.

Because the vibration output part 320 is arranged at the top of the ultrasonic reversing block 300, at least one reversing amplifying hole 330 and even energy-gathering amplifying holes 340 are arranged in the ultrasonic reversing block 300, the even energy-gathering amplifying holes 340 are arranged in an axial symmetry way around the central axis of the ultrasonic reversing block 300, and the distance between the energy-gathering amplifying holes 340 at two sides of the central axis is gradually reduced along the vertical upward direction, the ultrasonic vibration generated by the ultrasonic transducer 400 is transmitted to the ultrasonic reversing block 300 from the vibration input part 310 in the horizontal direction, the ultrasonic is reversed and amplified through the reversing amplifying holes 330, then transmitted to the energy-gathering amplifying holes 340 for further energy gathering and amplification, and then transmitted to the vibration output part 320 for output, the ultrasonic vibration in the horizontal direction can be converted into the vertical direction, the height of the ultrasonic clamp 10 is effectively reduced from the overall structure form, and the ultrasonic vibration can be subjected to energy gathering and amplification, the height of the ultrasonic clamp 10 is reduced in size, and the overall height of the ultrasonic clamp 10 is reduced in combination with both structure and size so as to be suitable for CNC processing machines.

The "horizontal direction" and "vertical direction" in this document are only examples of the ultrasonic jig 10 being horizontally mounted on the machine tool table in the drawings, but this does not limit the scope of protection. For example, when the ultrasonic clamp 10 is vertically mounted on the machine tool table, "horizontal direction" and "vertical direction" also need to be adjusted appropriately in accordance with the mounting direction of the ultrasonic clamp 10.

Furthermore, the inverting amplifying holes 330 are arranged at intervals in the vertical direction, the even number of energy collecting amplifying holes 340 are axisymmetrically located at two opposite sides of the inverting amplifying holes 330, the lowest position of the energy collecting amplifying hole 340 located at the lowermost position is lower than the highest position of the inverting amplifying hole 330 located at the uppermost position, and the highest position of the energy collecting amplifying hole 340 located at the uppermost position is higher than the highest position of the inverting amplifying hole 330 located at the uppermost position. That is, the uppermost inverting amplifying hole 330 and the lowermost energy collecting amplifying hole 340 are spatially overlapped in the horizontal direction. The purpose of this is to further enhance the amplification effect of the shaped energy amplifying hole 340.

Referring to fig. 3 to 8, in the embodiment shown in the drawings, the number of the inverting amplifying holes 330 is one, the central axis of the inverting amplifying holes 330 coincides with the central axis of the ultrasonic wave inverting block 300, the number of the energy collecting amplifying holes 340 is two, and the two energy collecting amplifying holes 340 are axisymmetric with respect to the central axis. The energy-gathering and amplifying holes 340 are arranged to be axisymmetric with respect to the central axis, which is beneficial to the ultrasonic vibration on the left and right sides to be more uniformly transmitted to the vibration table 500. The number of the reversing amplifying holes 330 is set to be one, and the number of the energy collecting amplifying holes 340 is set to be two, so that the structure is simplified, and the manufacturing difficulty is reduced.

Further, the two energy collecting and amplifying holes 340 are located on two opposite sides of the reversing amplifying hole 330, the lowest position of the energy collecting and amplifying holes 340 is lower than the highest position of the reversing amplifying hole 330, and the highest position of the energy collecting and amplifying holes 340 is higher than the highest position of the reversing amplifying hole 330. That is, the inverting amplification hole 330 and the energy collecting amplification hole 340 are spatially overlapped in the horizontal direction, so that the ultrasonic vibration is more easily transmitted from the side wall of the inverting amplification hole 330 to the side wall of the energy collecting amplification hole 340, and the ultrasonic vibration can be better transmitted to the vibration output unit 320 by combining the energy collecting effect of the energy collecting amplification hole 340.

Of course, in other embodiments, the number of the commutating amplifying holes 330 may also be two, three, etc., and the number of the energy concentrating amplifying holes 340 may also be four, six, etc.

With reference to fig. 7, the ultrasonic wave reversing block 300 has a first side 301, a second side 302, a third side 303 and a fourth side 304, the first side 301 is opposite to the second side 302, the third side 303 is opposite to the fourth side 304, the first side 301 is adjacent to the third side 303 and the fourth side 304, the second side 302 is adjacent to the third side 303 and the fourth side 304, the first side 301 and the second side 302 are provided with assembling holes 350, the assembling holes 350 are communicated with the reversing amplifying hole 330, and the reversing amplifying hole 330 and the energy concentrating amplifying hole 340 penetrate through the third side 303 and the fourth side 304, so that the ultrasonic wave vibration can be transmitted more uniformly, and the processing precision is improved.

Further, inclined surfaces 360 are arranged between the first side surface 301 and the top of the ultrasonic reversing block 300 and between the second side surface 302 and the top of the ultrasonic reversing block 300, and the distance between the two inclined surfaces 360 is gradually reduced along the vertical upward direction. In some embodiments, the inclined surfaces 360 are provided, and after the ultrasonic vibration is transmitted from the ultrasonic transducer 400 to the ultrasonic wave reversing block 300, the distance between the two inclined surfaces 360 is gradually reduced along the vertical upward direction, so that the energy gathering and amplifying effects can be further achieved.

Further, the difference between the inclination angle of the inclined surface 360 and the inclination angle of the energy-collecting and amplifying hole 340 is 0 to 5 degrees, so that the inclined surface 360 and the energy-collecting and amplifying hole 340 are not parallel to each other, the transmission direction of the ultrasonic vibration can be further reversed for the third time, and the ultrasonic vibration is ensured to be output along the vibration output part 320. For example, in the present embodiment, the inclination angle of the inclined surface 360 is different from the inclination angle of the energy concentrating aperture 340 by 4.5 °.

The top of the ultrasonic reversing block 300 is provided with a first vacuum adsorption hole 370, the side surface of the ultrasonic reversing block 300 adjacent to the vibration input part 310 is provided with a second vacuum adsorption hole 380, and the first vacuum adsorption hole 370 is communicated with the second vacuum adsorption hole 380. Therefore, the ultrasonic jig 10 fixes the workpiece by suction by vacuum suction.

It is defined that the ultrasonic vibration mechanism includes the ultrasonic reversing block 300 and two ultrasonic transducers 400, and the two ultrasonic transducers 400 are respectively mounted on the vibration input parts 310 at two opposite sides of the ultrasonic reversing block 300.

The ultrasonic transducer 400 includes a first piezoelectric plate 410, a second piezoelectric plate 420, a first electrode plate 430, a second electrode plate 440, and a fastener 450, wherein the fastener 450 is sequentially inserted into the first piezoelectric plate 410, the first electrode plate 420, the second piezoelectric plate 430, and the second electrode plate 440 and fastened to the vibration input portion 310.

The top surface of shell 200 has seted up uncovered 201, and vibration output part 320 is evaginated in shell 200 through uncovered 201, and shaking table 500 is fixed in on vibration output part 320, and work piece plummer 600 is fixed in on shaking table 500, and work piece plummer 600 is used for placing the work piece of treating the processing, for example cell-phone glass cover plate. For example, the workpiece holder 600 may be fixed to the vibration table 500 by a fastener such as a screw. Of course, in other embodiments, the workpiece support platform 600 may be integrally formed with the vibration platform 500.

The ultrasonic vibration isolation structure is defined to include the ultrasonic reversing block 300 and the housing 200, and further, a bearing part 390 is further provided at the top of the ultrasonic reversing block 300, and the bearing part 390 is located at the periphery of the vibration output part 320. For example, the bearing part 390 may be located on the circumferential side of one end of the vibration output part 320. The housing 200 has a top plate 220 and a peripheral wall 230, the opening 201 is opened on the top plate 220, a damping arm 202 is formed on the inner side wall of the opening 201 in a protruding manner, the thickness of the damping arm 202 is smaller than that of the top plate 220, the damping arm 202 is lapped on the bearing part 390, and the vibration output part 320 protrudes out of the housing 200 through the opening 201.

When assembled, the damping arm 202 is mounted on the carrier 390, and the vibration output portion 320 protrudes out of the housing 200 through the opening 201. During operation, ultrasonic vibration is transmitted to the vibration table 500 through the vibration output part 320, and since the housing 200 is lapped on the bearing part 390 through the vibration reduction arm 202, the ultrasonic vibration of the vibration output part 320 is transmitted to the vibration reduction arm 202, and the thickness of the vibration reduction arm 202 is smaller than that of the top plate 220 of the housing 200, so that the vibration reduction arm 202 is more easily deformed than the top plate 220 of the housing 200, and the ultrasonic vibration transmitted from the vibration output part 320 is offset, so that the ultrasonic vibration transmitted from the vibration output part 320 is not or rarely transmitted to the housing 200, and the housing 200 is not influenced by the ultrasonic vibration, and the processing precision is ensured.

In addition, in the illustrated embodiment, since the vibration output portion 320 is located at the top of the ultrasonic reversing block 300 and the vibration input portion 310 is located at the bottom of the ultrasonic reversing block 300, in combination with the principle of zero point vibration, the zero point vibration is located approximately at or near the contact between the damping arm 202 and the bearing portion 390, so that the damping arm 202 is disposed on the inner side wall of the opening 201 of the housing 200, and the ultrasonic vibration received by the damping arm 202 is small or even close to the zero point, thereby being more beneficial to avoiding the transmission of the ultrasonic vibration to the housing 200.

Further, the damper arm 202 has a contact surface 203 and a welding surface 204, the damper arm 202 is contacted to the mount 390 via the contact surface 203, and the damper arm 202 is welded to the side surface of the vibration output portion 320 via the welding surface 204. Therefore, the damping arm 202 is fixed to the ultrasonic reversing block 300 by welding. For example, a half V-shaped groove may be formed in the damper arm 202, a half V-shaped groove may be formed in the vibration output portion 320, the two half V-shaped grooves may form a V-shaped groove, and then the V-shaped groove may be filled with solder to be welded, thereby improving the firmness between the damper arm 202 and the ultrasonic wave commutation block 300.

Further, a boss 205 is convexly arranged on the top surface of the vibration damping arm 202, the opening 201 penetrates through the boss 205, the inner side wall of the boss 205 is flush with the welding surface 204, and the top surface of the boss 205 is lower than the top surface of the vibration output part 320. Therefore, the provision of the boss 205 not only increases the contact area between the vibration reduction arm 202 and the vibration output portion 320 to improve the firmness between the vibration reduction arm 202 and the ultrasonic wave reversing block 300, but also the top surface of the boss 205 is lower than the top surface of the vibration output portion 320, so that the boss 205 does not directly contact the vibration table 500, and the ultrasonic vibration of the vibration table 500 is prevented from being transmitted to the housing 200 through the boss 205. The length of the boss 205 may be less than the thickness of the damping arm 202.

Of course, in other embodiments, the damping arm 202 is located above the inner sidewall of the opening 201, and the top surface of the damping arm 202 is disposed flush with the top surface of the housing 200. For example, the damping arm 202 may be formed by a slot at the bottom of the top plate 220 of the housing 200, thus simplifying the molding process.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The ultrasonic reversing block is characterized in that vibration input parts are arranged on two opposite sides of the ultrasonic reversing block, a vibration output part is arranged at the top of the ultrasonic reversing block, at least one reversing amplifying hole and an even number of energy-collecting amplifying holes are formed in the ultrasonic reversing block, the even number of the energy-collecting amplifying holes are arranged in an axial symmetry mode around a central shaft of the ultrasonic reversing block, and the distance between the energy-collecting amplifying holes on the two sides of the central shaft is gradually reduced along the vertical upward direction.

2. The ultrasonic reversing block according to claim 1, wherein the reversing amplifying holes are arranged at intervals in the vertical direction, an even number of the energy-collecting amplifying holes are axially and symmetrically positioned on two opposite sides of the reversing amplifying hole, the lowest position of the energy-collecting amplifying hole positioned at the lowest position is lower than the highest position of the reversing amplifying hole positioned at the highest position, and the highest position of the energy-collecting amplifying hole positioned at the highest position is higher than the highest position of the reversing amplifying hole positioned at the highest position.

3. The ultrasonic reversing block according to claim 1, wherein the number of the reversing amplifying holes is one, and a central axis of the reversing amplifying holes coincides with a central axis of the ultrasonic reversing block, and the number of the energy collecting amplifying holes is two, and the two energy collecting amplifying holes are axisymmetric with respect to the central axis.

4. The ultrasonic reversing block according to claim 3, wherein two of the energy collecting and amplifying holes are located on opposite sides of the reversing amplifying hole, and the lowest of the energy collecting and amplifying holes is lower than the highest of the reversing amplifying holes, and the highest of the energy collecting and amplifying holes is higher than the highest of the reversing amplifying holes.

5. The ultrasonic reversing block according to any one of claims 1 to 4, wherein the ultrasonic reversing block has a first side surface, a second side surface, a third side surface and a fourth side surface, the first side surface is disposed opposite to the second side surface, the third side surface is disposed opposite to the fourth side surface, the first side surface is adjacent to the third side surface and the fourth side surface, the second side surface is adjacent to the third side surface and the fourth side surface, the first side surface and the second side surface are provided with assembling holes, the assembling holes are communicated with the reversing amplifying holes, and the reversing amplifying holes and the energy concentrating amplifying holes penetrate through the third side surface and the fourth side surface.

6. The ultrasonic reversing block according to claim 5, wherein inclined surfaces are respectively arranged between the first side surface and the top of the ultrasonic reversing block and between the second side surface and the top of the ultrasonic reversing block, and the distance between the two inclined surfaces is gradually reduced along a vertically upward direction.

7. The ultrasonic reversing block of claim 6, wherein the inclined surface is inclined at an angle of 0 ° -5 ° from the angle of inclination of the energy-concentrating aperture.

8. The ultrasonic reversing block according to any one of claims 1 to 4, wherein a first vacuum suction hole is formed in the top of the ultrasonic reversing block, a second vacuum suction hole is formed in a side surface of the ultrasonic reversing block adjacent to the vibration input portion, and the first vacuum suction hole is communicated with the second vacuum suction hole.

9. An ultrasonic vibration mechanism, comprising:

the ultrasonic commutation block of any one of claims 1 to 8; and

and the two ultrasonic transducers are respectively assembled on the vibration input parts at two opposite sides of the ultrasonic reversing block.

10. An ultrasonic clamp, comprising:

a base;

the shell is covered on the base and forms an accommodating cavity together with the base, and the top surface of the shell is provided with an opening;

the ultrasonic vibration mechanism of claim 9, wherein the ultrasonic reversing block is fixed to the base, the ultrasonic transducer and the ultrasonic reversing block are both located in the accommodating cavity, and the vibration output portion protrudes out of the housing through the opening; and

and the vibration table is fixed on the vibration output part.

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