CN111097969B - Rotary ultrasonic processing device capable of expanding bandwidth - Google Patents
Rotary ultrasonic processing device capable of expanding bandwidth Download PDFInfo
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- CN111097969B CN111097969B CN201911304613.3A CN201911304613A CN111097969B CN 111097969 B CN111097969 B CN 111097969B CN 201911304613 A CN201911304613 A CN 201911304613A CN 111097969 B CN111097969 B CN 111097969B
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- 238000013016 damping Methods 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims description 17
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 229920000620 organic polymer Polymers 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 description 8
- 238000003466 welding Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000011157 advanced composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
- B26D7/086—Means for treating work or cutting member to facilitate cutting by vibrating, e.g. ultrasonically
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Abstract
The invention discloses a rotary ultrasonic processing device capable of expanding bandwidth, which comprises a transducer (1), a cutter (2) and a combined cutter bar (3), wherein one end of the combined cutter bar (3) is connected with the transducer (1), and the other end of the combined cutter bar is connected with the cutter (2); the combined cutter bar (3) comprises a sleeve part and a rod-shaped part, wherein the sleeve part and the corresponding rod-shaped part can be connected in parallel with each other coaxially or partially in series, and the two rod-shaped parts can be connected in parallel with each other coaxially and end face contact; when in parallel connection, the sleeve part is sleeved on the matched rod section of the rod-shaped part, and the inner surface of the parallel section is in contact fit with the outer circular surface of the rod section; the sleeve portion and/or the rod portion are formed of damping materials having different damping coefficients. According to the invention, the bandwidth of the vibration system can be expanded by replacing parts with different damping coefficient materials.
Description
Technical Field
The invention relates to the technical field of rotary ultrasonic processing devices, in particular to a rotary ultrasonic processing device capable of expanding bandwidth.
Background
The ultrasonic processing technology is widely applied to processing of functional ceramics, optical glass and advanced composite materials, and the problems of large cutting force, high cutting temperature, poor processing surface quality, serious cutter abrasion and the like generated in the traditional method processing are well solved. The ultrasonic machining mechanism is that based on the traditional cutting process, an ultrasonic machining vibration system is utilized to apply ultrasonic frequency vibration with the frequency in the range of 15-40kHz to a cutter, and the cutting force and the cutting heat in the machining process are greatly reduced through the combined action of hammering, grinding and cavitation of the cutter with an ultrasonic combined track, so that the quality of the machined surface is effectively improved, and the abrasion of the cutter is reduced.
The key to achieving the above ultrasonic machining advantages is to apply a large amplitude to the tool. When the resonant frequency of the ultrasonic processing vibration system is consistent with the frequency of the ultrasonic power supply electric signal, the output amplitude and the system power can reach the maximum value. When the fluctuation of the force and heat load changes, a frequency difference exists between the two frequencies, and the larger the frequency difference is, the smaller the output amplitude and the system power of the ultrasonic processing vibration system are. The bandwidth refers to the frequency difference between two frequencies corresponding to half of the maximum value of the system power, and can represent the sensitivity of the output amplitude of the ultrasonic processing vibration system affected by the frequency difference. The greater the bandwidth, the less the output amplitude is reduced by the frequency difference, but at the cost of a lower mechanical quality factor of the vibrating system, the greater the energy loss.
The current method for solving the amplitude reduction caused by the frequency difference is to use an ultrasonic power supply with a frequency tracking function to automatically adjust the frequency of an electric signal of the ultrasonic power supply to be consistent with the resonant frequency of a vibration system. However, for vibration systems whose resonant frequency is frequently changed due to frequent changes in force and heat loads, the tracking speed of the frequency tracking function is still slow, ultimately resulting in frequent transitions of the vibration system between resonant and detuned states.
The existing ultrasonic processing equipment is pursued with extremely high mechanical quality factors, so that the bandwidth range of a vibration system is extremely narrow, the fluctuation of force and heat load in the processing process causes the fluctuation of the resonant frequency of the ultrasonic processing vibration system, the ultrasonic power supply and the vibration system are finally detuned, the output amplitude is sometimes not generated, and the processing stability and the processing quality are reduced.
Therefore, it is desirable to develop a device to expand the bandwidth of the transducer as needed, to fundamentally increase the stability of the vibrating system, to expand the bandwidth, and to ensure a suitable mechanical quality factor.
Disclosure of Invention
The invention aims at solving the technical defects existing in the prior art and provides a rotary ultrasonic processing device capable of expanding bandwidth.
The technical scheme adopted for realizing the purpose of the invention is as follows:
The rotary ultrasonic processing device capable of expanding the bandwidth comprises a transducer (1), a cutter (2) and a combined cutter bar (3), wherein one end of the combined cutter bar (3) is connected with the transducer (1), and the other end of the combined cutter bar is connected with the cutter (2); the combined cutter bar (3) comprises a sleeve part and a rod-shaped part, wherein the sleeve part and the corresponding rod-shaped part can be connected in parallel with each other coaxially or partially in series, and the two rod-shaped parts can be connected in parallel with each other coaxially and end face contact; when the sleeve parts are connected in parallel, the sleeve parts are sleeved on the matched rod sections of the rod parts, and the inner surfaces of the parallel sections are in contact fit with the outer circular surfaces of the rod sections; the sleeve part and/or the rod-shaped part are made of damping materials with different damping coefficients.
As a further scheme, the sleeve part is a parallel sleeve (3.1), the rod-shaped part is a parallel rod (3.2), and the parallel sleeve (3.1) is sleeved on the parallel link rod (3.2).
The parallel rod (3.2) is connected with the cutter (2), and the end face of the parallel sleeve (3.1) is directly or through a connecting piece connected with the amplitude output end face of the transducer (1) in a contact mode; in the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes part of ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
As a further scheme, the number of the rod-shaped parts is two, the rod-shaped parts comprise a first series of connecting rods (3.3) and a second series of connecting rods (3.4), and the end surfaces of the first series of connecting rods (3.3) and the second series of connecting rods (3.4) are connected in series in a contact manner.
The end face of the first series of connecting rods (3.3) is directly or in contact connection with the amplitude output end face of the transducer (1) through a connecting piece, and the second series of connecting rods (3.4) is connected with a cutter; during the ultrasonic transmission process, the material damping of the first series link (3.3) consumes part of ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
As a further scheme, the sleeve part comprises a parallel sleeve (3.1), the rod-shaped part comprises a mixed link rod (3.5), and the mixed link rod (3.5) is a stepped shaft; the one end that the diameter of series-parallel rod (3.5) is great is series-parallel rod section (3.5.1), and the one end that the diameter is less is series-parallel rod section (3.5.2), and parallelly connected sleeve (3.1) suit is on series-parallel rod section (3.5.2), and an terminal surface of parallelly connected sleeve (3.1) links to each other with the step face of series-parallel rod (3.5).
The end face of the series-parallel connection section (3.5.1) of the series-parallel connection rod is directly or through a mechanical sealing piece between planes connected with the amplitude output end face of the transducer (1) in a contact manner, and the parallel connection section (3.5.2) of the series-parallel connection rod is connected with a cutter; in the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes part of ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
Wherein the damping material comprises metal, inorganic nonmetal, ceramic, organic polymer and composite material.
The invention expands the bandwidth of the transducer as required, fundamentally improves the stability of the vibration system, expands the bandwidth and ensures the proper mechanical quality factor.
Drawings
Fig. 1 is an isometric view of a bandwidth-scalable rotary ultrasonic processing apparatus according to an embodiment of the present invention.
Fig. 2 is an exploded view of a rotary ultrasonic processing apparatus with expandable bandwidth according to an embodiment of the present invention.
Fig. 3 is an exploded view of a bandwidth-scalable rotary ultrasonic processing apparatus according to a second embodiment of the present invention.
Fig. 4 is an exploded view of a rotary ultrasonic processing device with expandable bandwidth according to a third embodiment of the present invention.
Fig. 5 is a cross-sectional view of a combined tool bar according to a fourth embodiment of the invention.
Fig. 6 is an exploded view of a rotary ultrasonic processing apparatus with expandable bandwidth according to a fifth embodiment of the present invention.
Fig. 7 is a cross-sectional view of a rotary ultrasonic processing apparatus with expandable bandwidth according to a fifth embodiment of the present invention.
Fig. 8 is an exploded view of a bandwidth-scalable rotary ultrasonic processing apparatus according to a sixth embodiment of the present invention.
Fig. 9 is an isometric view of a bandwidth-scalable rotary ultrasonic processing apparatus according to a seventh embodiment of the present invention.
Fig. 10 is an exploded view of a bandwidth-scalable rotary ultrasonic processing apparatus according to a seventh embodiment of the present invention.
Fig. 11 is a cross-sectional view of a combined tool bar according to a seventh embodiment of the invention.
Fig. 12 is an exploded view of a bandwidth-scalable rotary ultrasonic processing apparatus according to an eighth embodiment of the present invention.
Fig. 13 is an exploded view of a bandwidth-scalable rotary ultrasonic processing apparatus according to a ninth embodiment of the present invention.
Fig. 14 is an exploded view of a bandwidth-scalable rotary ultrasonic processing apparatus according to an embodiment of the present invention.
Fig. 15 is a cross-sectional view of a combination tool bar according to a tenth embodiment of the invention.
Fig. 16 is an exploded view of a bandwidth-scalable rotary ultrasonic processing apparatus according to an eleventh embodiment of the present invention.
Fig. 17 is a cross-sectional view of a bandwidth-scalable rotary ultrasonic processing apparatus according to an eleventh embodiment of the present invention.
Fig. 18 is an exploded view of a bandwidth-scalable rotary ultrasonic processing apparatus according to a twelfth embodiment of the present invention.
In the figure:
1. A transducer; 2. a cutter; 3. a combined cutter bar; 4. a first press cap; 5. a first collet; 6. a collet chuck; 7. pulling nails; 1.1, a chuck base of a transducer spring chuck; 1.2, a threaded hole of the transducer; 3.1, connecting sleeves in parallel; 3.2, connecting rods in parallel; 3.3, a first series of links; 3.4, a second series link rod; 3.5, a series-parallel rod; 3.6, a round nut; 3.7, a first gasket; 3.8, a second gasket; 3.9, a second press cap; 3.10, a second spring chuck; 3.11, a third gasket; 3.2.1, parallel rod clamp base; 3.2.2, parallel rod threads; 3.2.3, threaded holes of the parallel rods; 3.3.1, a first series rod threaded hole; 3.4.1, a second series rod threaded post; 3.4.2, second tandem rod threads; 3.4.3, a second clip seat; 3.4.4, a second series rod threaded hole; 3.5.1, series section of series-parallel connection rod; 3.5.2, parallel sections of the series-parallel rods; 3.5.3, a hybrid rod holder; 3.5.4 screw threads of a series-parallel rod; 3.5.5, threaded holes of the series-parallel connection rods.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in figures 1 and 2, the rotary ultrasonic processing device capable of expanding bandwidth comprises a transducer (1), a cutter (2) and a combined cutter bar (3), wherein one end of the combined cutter bar (3) is connected with the transducer (1), and the other end of the combined cutter bar is connected with the cutter (2). The connection means include, but are not limited to, mechanical structural connection, welding, and bonding.
Example two
As shown in fig. 3, in this embodiment, the bandwidth-expandable rotary ultrasonic processing device of the present invention includes a transducer (1), a cutter (2), a combined cutter bar (3), a first press cap (4) and a first collet chuck (5), and a transducer collet chuck seat (11) is provided on an amplitude output end surface of the transducer (1).
The connection relation among the transducer (1), the cutter (2), the combined cutter bar (3), the first press cap (4) and the first spring chuck (5) is as follows: one end of a parallel rod 3.2 of the combined cutter bar (3) is connected with the cutter (2), the other end of the parallel rod is installed in an inner hole of a first spring chuck (5), the first spring chuck (5) and a transducer spring chuck base (1.1) are positioned in a matched mode through conical surfaces, a first press cap (4) tightly presses and fixes the first spring chuck (5) on the transducer spring chuck base (1.1), the first spring chuck (5) clamps the combined cutter bar (3), and the first press cap (4) is in threaded connection with the transducer (1). The connection means of the combined cutter bar (3) and the cutter (2) include, but are not limited to, mechanical structure connection, welding and bonding.
Example III
As shown in fig. 4, in this embodiment, the bandwidth-expandable rotary ultrasonic processing device of the present invention includes a transducer (1), a cutter (2) and a combined cutter bar (3), and a transducer threaded hole (1.2) is formed on an amplitude output end surface of the transducer (1). The connection relation among the transducer (1), the cutter (2) and the combined cutter bar (3) is as follows: one end of the combined cutter bar (3) is connected with the cutter (2), and the other end of the parallel rod (3.2) is installed into the threaded hole (1.2) of the transducer through a formed threaded part and is fixed through threaded connection. The connection means of the combined cutter bar (3) and the cutter (2) include, but are not limited to, mechanical structure connection, welding and bonding.
Example IV
As shown in fig. 5, the combined cutter bar (3) comprises a parallel sleeve (3.1) and a parallel rod (3.2), wherein the parallel sleeve (3.1) is arranged on the parallel rod (3.2) in a mode of mechanical structure connection, welding and bonding.
In this embodiment, the parallel sleeve (3.1) is a series of parts made of materials with different damping coefficients, which can be replaced according to the bandwidth and mechanical quality factor of the vibration system.
In this embodiment, when the transducer (1) outputs ultrasonic vibration, ultrasonic waves are input from one ends of the parallel sleeve (3.1) and the parallel rod (3.2), and output from the other ends of the parallel sleeve (3.1) and the parallel rod (3.2), and the cutter (2) connected with the other ends is driven to perform ultrasonic vibration. In the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes part of ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
Example five
As shown in fig. 6 and 7, the rotary ultrasonic processing device capable of expanding the bandwidth comprises a collet chuck (6) and a blind rivet (7), wherein the combined cutter bar (3) comprises a parallel sleeve (3.1), a parallel rod (3.2), a round nut (3.6), a first gasket (3.7) and a second gasket (3.8), a parallel rod clamp seat (3.2.1) and a parallel rod thread (3.2.2) are respectively arranged on the end face and the outer cylindrical surface of one end of the parallel rod (3.2), the round nut (3.6) is arranged on the parallel rod thread (3.2.2) of the parallel rod (3.2), and the first gasket (3.7), the parallel sleeve (3.1) and the second gasket (3.8) are sequentially arranged on the parallel rod (3.2) from the other side of the parallel rod (3.2).
The connection relation among the cutter (2), the combined cutter bar (3), the spring collet (6) and the blind rivet (7) is as follows: the cutter (2) is arranged in an inner hole of the collet chuck (6), the collet chuck (6) is matched with the conical surface of the parallel rod holder (3.2.1), the blind rivet (7) is inserted into the inner hole at the other end of the parallel rod (3.2) and is arranged with the collet chuck (6) through threads, the collet chuck (6) is tensioned and fixed, and the cutter (2) is clamped by the collet chuck (6).
In this embodiment, the parallel sleeve (3.1) is a series of parts made of materials with different damping coefficients, which can be replaced according to the bandwidth and mechanical quality factor of the vibration system.
In this embodiment, when the transducer (1) outputs ultrasonic vibration, ultrasonic waves are input from one ends of the parallel sleeve (3.1) and the parallel rod (3.2), and output from the other ends of the parallel sleeve (3.1) and the parallel rod (3.2), and the cutter (2) connected with the other ends is driven to perform ultrasonic vibration. In the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes part of ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
Example six
As shown in fig. 8, the combined cutter bar (3) comprises a parallel sleeve (3.1), a parallel rod (3.2), a round nut (3.6), a first gasket (3.7) and a second gasket (3.8), wherein a parallel rod threaded hole (3.2.3) and a parallel rod thread (3.2.2) are respectively arranged on the end face and the outer cylindrical surface of one end of the parallel rod (3.2), the round nut (3.6) is arranged on the parallel rod thread (3.2.2) of the parallel rod (3.2), and the first gasket (3.7), the parallel sleeve (3.1) and the second gasket (3.8) are sequentially arranged on the parallel rod (3.2) from the other side of the parallel rod (3.2).
The non-cutting end of the cutter (2) is provided with a cutter thread (2.1), and the connection relation between the cutter (2) and the combined cutter bar (3) is as follows: the cutter thread (2.1) is in threaded connection with the threaded hole (3.2.3) of the parallel rod.
In this embodiment, the parallel sleeve (3.1) is a series of parts made of materials with different damping coefficients, which can be replaced according to the bandwidth and mechanical quality factor of the vibration system.
In this embodiment, when the transducer (1) outputs ultrasonic vibration, ultrasonic waves are input from one ends of the parallel sleeve (3.1) and the parallel rod (3.2), and output from the other ends of the parallel sleeve (3.1) and the parallel rod (3.2), and the cutter (2) connected with the other ends is driven to perform ultrasonic vibration. In the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes part of ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
Example seven
As shown in fig. 9, 10 and 11, the rotary ultrasonic processing device capable of expanding bandwidth according to the present invention, the combined cutter bar (3) comprises a first serial link (3.3) and a second serial link (3.4), the end faces of the first serial link (3.3) and the second serial link (3.4) are connected, the other end of the first serial link (3.3) is connected with the transducer, and the other end of the second serial link (3.4) is connected with the cutter, wherein the connection modes include, but are not limited to, mechanical structure connection, welding and bonding.
In this embodiment, the first series of links (3.3) is a series of parts made of materials with different damping coefficients, which can be replaced according to the bandwidth and mechanical quality factor of the vibration system.
In this embodiment, when the transducer (1) outputs ultrasonic vibration, ultrasonic waves are input from one end connected to the first serial link (3.3), sequentially pass through the first serial link (3.3) and the second serial link (3.4), and are output from one end connected to the cutter (2) through the second serial link (3.4), so that the cutter (2) is driven to perform ultrasonic vibration. During the ultrasonic transmission process, the material damping of the first series link (3.3) consumes part of ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
Example eight
As shown in fig. 12, the combined cutter bar (3) comprises a first series of connecting rods (3.3), a second series of connecting rods (3.4), a second gasket (3.8), a second press cap (3.9), a second collet chuck (3.10) and a third gasket (3.11). The end face of one end of the first series link rod (3.3) is provided with a first series link rod threaded hole (3.3.1). The end face of one end of the second series connecting rod (3.4) is provided with a second series connecting rod threaded column (3.4.1), and the outer cylindrical surface and the end face of the other end are respectively provided with a second series connecting rod thread (3.4.2) and a second clamp seat (3.4.3). The third gasket (3.11) is installed on second tandem bar screw thread post (3.4.1), and threaded connection is carried out to second tandem bar screw thread post (3.4.1) and first tandem bar screw hole (3.3.1), and first cluster link (3.3), second cluster link (3.4) all need be guaranteed in order to reduce the energy loss in the ultrasonic vibration transmission in-process with third gasket (3.11) in the time of the installation, and second gasket (3.8) are installed on the less end cylinder of first cluster link (3.3).
The connection relation between the cutter (2) and the combined cutter bar (3) is as follows: the cutter (2) is arranged in an inner hole of the second spring chuck (3.10), the second spring chuck (17) is matched with the conical surface of the second chuck base (3.4.3), the second press cap (3.9) presses the second spring chuck (3.10) on the second chuck base (3.4.3), the cutter is in threaded connection through the second serial rod threads (3.4.2), and the cutter (2) is clamped by the second spring chuck (3.10).
In this embodiment, the first series of links (3.3) is a series of parts made of materials with different damping coefficients, which can be replaced according to the bandwidth and mechanical quality factor of the vibration system.
In the embodiment, when the transducer (1) outputs ultrasonic vibration, the ultrasonic waves sequentially pass through the second gasket (3.4), the first serial connecting rod (3.3), the third gasket (3.11), the second serial connecting rod (3.4), the second collet chuck (3.10) and the second pressing cap (3.9) to drive the cutter (2) to perform ultrasonic vibration. During the ultrasonic transmission process, the material damping of the first series link (3.3) consumes part of ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
Example nine
As shown in FIG. 13, the combined cutter bar (3) comprises a first series of connecting rods (3.3), a second series of connecting rods (3.4), a second gasket (3.8), a second press cap (3.9), a second collet chuck (3.10) and a third gasket (3.11). The end face of one end of the first series link rod (3.3) is provided with a first series link rod threaded hole (3.3.1). The end face of one end of the second series connecting rod (3.4) is provided with a second series rod threaded column (3.4.1), and the end face of the other end is provided with a second series rod threaded hole (3.4.4). The third gasket (3.11) is installed on second tandem bar screw thread post (3.4.1), and threaded connection is carried out to second tandem bar screw thread post (3.4.1) and first tandem bar screw hole (3.3.1), and first cluster link (3.3), second cluster link (3.4) all need be guaranteed in order to reduce the energy loss in the ultrasonic vibration transmission in-process with third gasket (3.11) in the time of the installation, and second gasket (3.8) are installed on the less end cylinder of first cluster link (3.3).
The non-cutting end of the cutter (2) is provided with a cutter thread (2.1).
The connection relation between the cutter (2) and the combined cutter bar (3) is as follows: the tool thread (2.1) is in threaded connection with the second tandem rod threaded hole (3.4.4).
In this embodiment, the first series of links (3.3) is a series of parts made of materials with different damping coefficients, which can be replaced according to the bandwidth and mechanical quality factor of the vibration system.
In the embodiment, when the transducer (1) outputs ultrasonic vibration, the ultrasonic waves sequentially pass through the second gasket (3.4), the first serial connecting rod (3.3), the third gasket (3.11), the second serial connecting rod (3.4), the second collet chuck (3.10) and the second pressing cap (3.9) to drive the cutter (2) to perform ultrasonic vibration. During the ultrasonic transmission process, the material damping of the first series link (3.3) consumes part of ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
Examples ten
As shown in fig. 14 and 15, the combined cutter bar (3) comprises a mixed link bar (3.5) and a parallel sleeve (3.1), the mixed link bar (3.5) is a stepped shaft, one end with a larger diameter is a serial section (3.5.1) of the mixed link bar, the other end with a smaller diameter is a parallel section (3.5.2) of the mixed link bar, the parallel sleeve (3.1) is arranged on the parallel section (3.52) of the mixed link bar, one end face of the parallel sleeve (3.1) is connected with the stepped face of the mixed link bar (3.5), the end face of the serial section (3.5.1) of the mixed link bar is connected with a transducer, the parallel section (3.5.2) of the mixed link bar is connected with a cutter, and the connection modes include but are not limited to mechanical structure connection, welding and bonding.
In this embodiment, the parallel sleeve (3.1) is a series of parts made of materials with different damping coefficients, which can be replaced according to the bandwidth and mechanical quality factor of the vibration system.
In this embodiment, when the transducer outputs ultrasonic vibration, the ultrasonic wave is input from one end connected with the serial section (3.5.1) of the series-parallel connection rod, firstly, the ultrasonic wave is transmitted through the serial section (3.5.1) of the series-parallel connection rod, then, the ultrasonic wave is transmitted simultaneously through the parallel section (3.5.2) of the series-parallel connection rod and the parallel sleeve (3.1), and finally, the ultrasonic wave is output from the other ends of the parallel section (3.5.2) of the series-parallel connection rod and the parallel sleeve (3.1), so that the cutter (2) is driven to perform ultrasonic vibration. In the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes part of ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
Example eleven
As shown in fig. 16 and 17, the invention relates to a rotary ultrasonic processing device capable of expanding bandwidth, which further comprises a collet chuck (6) and a blind rivet (7), and is characterized in that:
The combined cutter bar (3) comprises a mixed link rod (3.5), a parallel sleeve (3.1), a round nut (3.6), a first gasket (3.7), a second gasket (3.8) and a third gasket (3.11). The end of the mixed link rod (3.5) with larger diameter is a serial section (3.5.1) of the mixed link rod, the end of the mixed link rod with smaller diameter is a parallel section (3.5.2) of the mixed link rod, and a serial rod holder (3.5.3) and a serial rod thread (3.5.4) are respectively arranged on the end face and the outer cylindrical surface of one end of the parallel section (3.5.2) of the mixed link rod. The third gasket (3.11), the parallel sleeve (3.1) and the first gasket (3.7) are sequentially arranged on the parallel section (3.5.2) of the mixed link rod, the round nut (3.6) is arranged on the screw thread (3.5.4) of the mixed link rod, and the second gasket (3.8) is arranged on a smaller cylinder at one end of the serial section (3.5.1) of the mixed link rod.
The connection relation among the cutter (2), the combined cutter bar (3), the spring collet (6) and the blind rivet (7) is as follows: the cutter (2) is arranged in an inner hole of the collet chuck (6), the collet chuck (6) is matched with the conical surface of the mixed connecting rod holder (3.5.3), the blind rivet (7) is inserted into the inner hole at the other end of the mixed connecting rod (3.5) and is arranged with the collet chuck (6) through threads, the collet chuck (6) is tensioned and fixed, and the cutter (2) is clamped by the collet chuck (6).
In this embodiment, the parallel sleeve (3.1) is a series of parts made of materials with different damping coefficients, which can be replaced according to the bandwidth and mechanical quality factor of the vibration system.
In this embodiment, when the transducer (1) outputs ultrasonic vibration, the ultrasonic wave passes through the second gasket (3.8) and the serial section (3.5.1) of the series-parallel connection rod at first, then a part of ultrasonic wave continues to pass through the parallel section (3.5.2) of the series-parallel connection rod and transmits to the other end of the combined cutter bar (3), and another part of ultrasonic wave sequentially passes through the third gasket (3.11), the parallel sleeve (3.1), the first gasket (3.7) and the round nut (3.6) and transmits to the other end of the combined cutter bar (3), and the two parts of ultrasonic waves jointly drive the cutter (2) to perform ultrasonic vibration. In the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes part of ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
Example twelve
As shown in FIG. 18, the combined cutter bar (3) comprises a mixed link rod (3.5), a parallel sleeve (3.1), a round nut (3.6), a first gasket (3.7), a second gasket (3.8) and a third gasket (3.11). The end with larger diameter of the mixed link rod (3.5) is a serial section (3.5.1) of the mixed link rod, the end with smaller diameter is a parallel section (3.5.2) of the mixed link rod, and the end face and the outer cylindrical surface of one end of the parallel section (3.5.2) of the mixed link rod are respectively provided with a threaded hole (3.5.5) of the mixed link rod and a thread (3.5.4) of the mixed link rod. The third gasket (3.11), the parallel sleeve (3.1) and the first gasket (3.7) are sequentially arranged on the parallel section (3.5.2) of the mixed link rod, the round nut (3.6) is arranged on the screw thread (3.5.4) of the mixed link rod, and the second gasket (3.8) is arranged on a smaller cylinder at one end of the serial section (3.5.1) of the mixed link rod.
The non-cutting end of the cutter (2) is provided with a cutter thread (2.1). The connection relation between the cutter (2) and the combined cutter bar (3) is as follows: the cutter thread (2.1) is in threaded connection with the threaded hole (3.5.5) of the hybrid rod.
In this embodiment, the parallel sleeve (3.1) is a series of parts made of materials with different damping coefficients, which can be replaced according to the bandwidth and mechanical quality factor of the vibration system.
In this embodiment, when the transducer (1) outputs ultrasonic vibration, the ultrasonic wave passes through the second gasket (3.8) and the serial section (3.5.1) of the series-parallel connection rod at first, then a part of ultrasonic wave continues to pass through the parallel section (3.5.2) of the series-parallel connection rod and transmits to the other end of the combined cutter bar (3), and another part of ultrasonic wave sequentially passes through the third gasket (3.11), the parallel sleeve (3.1), the first gasket (3.7) and the round nut (3.6) and transmits to the other end of the combined cutter bar (3), and the two parts of ultrasonic waves jointly drive the cutter (2) to perform ultrasonic vibration. In the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes part of ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
Damping materials described in all of the embodiments above include, but are not limited to, metals, inorganic non-metals, ceramics, organic polymers, and composites.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (8)
1. The rotary ultrasonic processing device capable of expanding the bandwidth is characterized by comprising a transducer (1), a cutter (2) and a combined cutter bar (3), wherein one end of the combined cutter bar (3) is connected with the transducer (1), and the other end of the combined cutter bar is connected with the cutter (2); the combined cutter bar (3) comprises a sleeve part and a rod-shaped part, wherein the sleeve part and the corresponding rod-shaped part can be connected in parallel with each other coaxially or partially in series, and the two rod-shaped parts can be connected in parallel with each other coaxially and end face contact; when the sleeve parts are connected in parallel, the sleeve parts are sleeved on the matched rod sections of the rod parts, and the inner surfaces of the parallel sections are in contact fit with the outer circular surfaces of the rod sections; the sleeve part and/or the rod-shaped part are made of damping materials with different damping coefficients.
2. The rotary ultrasonic processing device capable of expanding bandwidth according to claim 1, wherein the sleeve part is a parallel sleeve (3.1), the rod-shaped part is a parallel rod (3.2), and the parallel sleeve (3.1) is sleeved on the parallel link rod (3.2).
3. The rotary ultrasonic processing device capable of expanding bandwidth according to claim 2, characterized in that the parallel rod (3.2) is connected with the cutter (2), and the end face of the parallel sleeve (3.1) is directly or through a connecting piece connected with the amplitude output end face of the transducer (1) in a contact manner; in the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes part of ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
4. The rotary ultrasonic processing device capable of expanding bandwidth according to claim 1, wherein the number of the rod-shaped parts is two, the rod-shaped parts comprise a first series of connecting rods (3.3) and a second series of connecting rods (3.4), and the end surfaces of the first series of connecting rods (3.3) and the second series of connecting rods (3.4) are connected in series in a contact manner.
5. The rotary ultrasonic processing device capable of expanding bandwidth according to claim 4, characterized in that the end face of the first series of links (3.3) is directly or through a connecting piece connected with the amplitude output end face of the transducer (1), and the second series of links (3.4) is connected with a cutter; during the ultrasonic transmission process, the material damping of the first series link (3.3) consumes part of ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
6. The rotary ultrasonic processing device capable of expanding bandwidth according to claim 1, wherein the sleeve part comprises a parallel sleeve (3.1), the rod-shaped part comprises a mixed link rod (3.5), and the mixed link rod (3.5) is a stepped shaft; the one end that the diameter of series-parallel rod (3.5) is great is series-parallel rod section (3.5.1), and the one end that the diameter is less is series-parallel rod section (3.5.2), and parallelly connected sleeve (3.1) suit is on series-parallel rod section (3.5.2), and an terminal surface of parallelly connected sleeve (3.1) links to each other with the step face of series-parallel rod (3.5).
7. The rotary ultrasonic processing device capable of expanding bandwidth according to claim 6, wherein the end face of the series-parallel rod section (3.5.1) is directly or through a mechanical seal between planes connected with the amplitude output end face of the transducer (1), and the parallel-parallel rod section (3.5.2) is connected with a cutter; in the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes part of ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
8. The apparatus of claim 1, wherein the damping material comprises a metal, an inorganic nonmetal, a ceramic, an organic polymer, or a composite material.
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| CN201911304613.3A CN111097969B (en) | 2019-12-17 | 2019-12-17 | Rotary ultrasonic processing device capable of expanding bandwidth |
| PCT/CN2019/130320 WO2021120329A1 (en) | 2019-12-17 | 2019-12-31 | Rotary ultrasonic machining device capable of expanding bandwidth |
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