CN111097969A - Rotary ultrasonic machining device capable of expanding bandwidth - Google Patents
Rotary ultrasonic machining device capable of expanding bandwidth Download PDFInfo
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- CN111097969A CN111097969A CN201911304613.3A CN201911304613A CN111097969A CN 111097969 A CN111097969 A CN 111097969A CN 201911304613 A CN201911304613 A CN 201911304613A CN 111097969 A CN111097969 A CN 111097969A
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- 238000003754 machining Methods 0.000 title claims description 7
- 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 4
- 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
- 150000002739 metals Chemical class 0.000 claims description 2
- 150000002843 nonmetals Chemical class 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 description 8
- 238000003825 pressing Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action 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
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- 239000005304 optical glass Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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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
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- 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 an energy converter (1), a cutter (2) and a combined cutter bar (3), wherein one end of the combined cutter bar (3) is connected with the energy converter (1), and the other end of the combined cutter bar is connected with the cutter (2); the combined type cutter bar (3) comprises a sleeve part and a rod-shaped part, wherein the sleeve part and the corresponding rod-shaped part can be coaxially connected in parallel or partially connected in series and partially connected in parallel, and the two rod-shaped parts can be coaxially connected in series in an end face contact manner to form the required combined type cutter bar; when the parallel connection is carried out, 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/is formed by using damping materials with different damping coefficients. According to the invention, the bandwidth of the vibration system can be expanded by replacing parts made of materials with different damping coefficients.
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 well solves the problems of large cutting force, high cutting temperature, poor quality of processed surface, serious cutter abrasion and the like generated in the traditional method. The ultrasonic processing mechanism is that on the basis of the traditional cutting process, an ultrasonic processing vibration system is utilized to apply ultrasonic frequency vibration with the frequency within the range of 15-40kHz to a cutter, and through the combined action of hammering, grinding and cavitation of the cutter with an ultrasonic composite track, the cutting force and the cutting heat in the processing process are greatly reduced, so that the processing surface quality is effectively improved, and the cutter abrasion is reduced.
The key to achieving the above mentioned ultrasonic machining advantages is to impart a large amplitude on the tool. When the resonant frequency of the ultrasonic processing vibration system is consistent with the frequency of the electric signal of the ultrasonic power supply, the output amplitude and the system power can reach the maximum value. When the force thermal load fluctuates and 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 is the frequency difference between two frequencies corresponding to half of the maximum system power, and can represent the sensitivity of the ultrasonic processing vibration system output amplitude affected by the frequency difference. The larger the bandwidth, the smaller the degree of output amplitude reduction due to the frequency difference, but at the cost of a lower mechanical quality factor of the vibration system, the greater the energy loss.
At present, the method for solving the amplitude reduction caused by the frequency difference is to use an ultrasonic power supply with a frequency tracking function and 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 a vibration system with a frequent change of the force thermal load, which results in a frequent change of the resonant frequency, the tracking speed of the frequency tracking function is still slow, which finally results in a frequent change of the vibration system between the resonant and detuned states.
The existing ultrasonic processing equipment pursues extremely high mechanical quality factors, so that the bandwidth range of a vibration system is extremely narrow, the fluctuation of the force and heat load in the processing process causes the fluctuation of the resonant frequency of the ultrasonic processing vibration system, and finally the detuning between an ultrasonic power supply and the vibration system is caused, the output amplitude is sometimes absent, and the processing stability and the processing quality are reduced.
Therefore, it is necessary to develop a device to expand the bandwidth of the transducer as needed, to improve the stability of the vibration system fundamentally, and to ensure a suitable mechanical quality factor while expanding the bandwidth.
Disclosure of Invention
The invention aims to provide a rotary ultrasonic processing device capable of expanding bandwidth aiming at the technical defects in the prior art.
The technical scheme adopted for realizing the purpose of the invention is as follows:
a rotary ultrasonic processing device capable of expanding bandwidth comprises an energy converter (1), a cutter (2) and a combined cutter bar (3), wherein one end of the combined cutter bar (3) is connected with the energy converter (1), and the other end of the combined cutter bar is connected with the cutter (2); the combined type cutter bar (3) comprises a sleeve part and rod-shaped parts, wherein the sleeve part and the corresponding rod-shaped parts can be coaxially connected in parallel or partially connected in series and partially connected in parallel, and the two rod-shaped parts can be coaxially connected in series in an end face contact manner to form the required combined type cutter bar; when the parallel connection is carried out, 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 part and/or the rod 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 part is a parallel link rod (3.2), and the parallel sleeve (3.1) is sleeved on the parallel link rod (3.2).
The parallel connecting rod (3.2) is connected with the cutter (2), and the end face of the parallel sleeve (3.1) is in contact connection with the amplitude output end face of the transducer (1) directly or through a connecting piece; in the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes partial 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 serial connecting rod (3.3) and a second serial connecting rod (3.4), and the end faces of the first serial connecting rod (3.3) and the second serial connecting rod (3.4) are in contact connection and are connected in series.
The end face of the first serial link rod (3.3) is in contact connection with the amplitude output end face of the energy converter (1) directly or through a connecting piece, and the second serial link rod (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 the ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
As a further proposal, the sleeve part comprises a parallel sleeve (3.1), the rod part comprises a mixed rod (3.5), and the mixed rod (3.5) is a step shaft; the one end that the diameter is great of mixing link (3.5) is for mixing link series section (3.5.1), and the one end that the diameter is less is for mixing link parallel section (3.5.2), and parallel sleeve (3.1) suit is on mixing link parallel section (3.5.2), and an terminal surface of parallel sleeve (3.1) and the ladder face of mixing link (3.5) link to each other.
The end face of the hybrid rod serial section (3.5.1) is in contact connection with the amplitude output end face of the transducer (1) directly or through a mechanical sealing element between planes, and the hybrid rod parallel section (3.5.2) is connected with a cutter; in the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes partial 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 according to the requirement, fundamentally improves the stability of the vibration system, and ensures the proper mechanical quality factor while expanding the bandwidth.
Drawings
Fig. 1 is an isometric view of a bandwidth-extended rotary ultrasonic processing apparatus according to an embodiment of the present invention.
Fig. 2 is an exploded view of a bandwidth-extended rotary ultrasonic processing apparatus according to an embodiment of the present invention.
Fig. 3 is an exploded view of a bandwidth-extended rotary ultrasonic processing apparatus according to a second embodiment of the present invention.
Fig. 4 is an exploded view of a bandwidth-expandable rotary ultrasonic processing device provided in the third embodiment of the present invention.
Fig. 5 is a sectional view of a combined blade bar according to a fourth embodiment of the present invention.
Fig. 6 is an exploded view of a bandwidth-extended rotary ultrasonic processing apparatus according to the fifth embodiment of the present invention.
Fig. 7 is a cross-sectional view of a bandwidth-expandable rotary ultrasonic processing apparatus according to a fifth embodiment of the present invention.
Fig. 8 is an exploded view of a bandwidth-extended rotary ultrasonic processing apparatus according to a sixth embodiment of the present invention.
Fig. 9 is an isometric view of a bandwidth-extended rotary ultrasonic processing device provided by the seventh embodiment of the invention.
Fig. 10 is an exploded view of a bandwidth-extended rotary ultrasonic processing apparatus according to a seventh embodiment of the present invention.
Fig. 11 is a sectional view of a combined blade bar according to a seventh embodiment of the present invention.
Fig. 12 is an exploded view of a bandwidth-extended rotary ultrasonic processing apparatus according to an eighth embodiment of the present invention.
Fig. 13 is an exploded view of a bandwidth-extended rotary ultrasonic processing apparatus according to the ninth embodiment of the present invention.
Fig. 14 is an exploded view of a bandwidth-extended rotary ultrasonic processing apparatus provided in the tenth embodiment of the present invention.
Fig. 15 is a cross-sectional view of a modular blade holder according to a tenth embodiment of the invention.
Fig. 16 is an exploded view of a bandwidth-extended rotary ultrasonic processing apparatus according to an eleventh embodiment of the present invention.
Fig. 17 is a cross-sectional view of a bandwidth-extended rotary ultrasonic processing apparatus according to an eleventh embodiment of the present invention.
Fig. 18 is an exploded view of a bandwidth-extended 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 chuck; 6. a collet chuck; 7. pulling nails; 1.1, a clamp head seat of a spring clamp head of the transducer; 1.2, a threaded hole of the transducer; 3.1, connecting the sleeves in parallel; 3.2, connecting rods in parallel; 3.3, a first series of connecting rods; 3.4, a second series of connecting rods; 3.5, a hybrid connecting rod; 3.6, round nuts; 3.7, a first gasket; 3.8, a second gasket; 3.9, a second pressing cap; 3.10, a second spring chuck; 3.11, a third gasket; 3.2.1, parallel rod chuck seats; 3.2.2, parallel rod threads; 3.2.3, parallel rod threaded holes; 3.3.1, a first tandem link rod threaded hole; 3.4.1, a second series rod threaded column; 3.4.2, second tandem bar threading; 3.4.3, a second chuck seat; 3.4.4, a second series rod threaded hole; 3.5.1, a series-connection section of the parallel-serial connecting rod; 3.5.2, parallel connection sections of the parallel connection rods; 3.5.3, a parallel-link rod chuck seat; 3.5.4, parallel-series rod screw thread; 3.5.5, a threaded hole of the hybrid connecting rod.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
As shown in fig. 1 and 2, the rotary ultrasonic processing device capable of expanding bandwidth of the invention comprises an energy converter (1), a cutter (2) and a combined cutter bar (3), wherein one end of the combined cutter bar (3) is connected with the energy converter (1), and the other end is connected with the cutter (2). Attachment means include, but are not limited to, mechanical structural attachment, welding, and bonding.
Example two
As shown in fig. 3, in this embodiment, the present invention relates to a rotary ultrasonic processing apparatus capable of expanding bandwidth, which includes a transducer (1), a tool (2), a combined tool bar (3), a first pressing cap (4), and a first collet chuck (5), wherein a collet chuck seat (11) of the transducer is disposed on an amplitude output end surface of the transducer (1).
The energy converter (1), cutter (2), combination formula cutter arbor (3), first pressure cap (4) and first collet chuck (5) between the relation of connection be: one end of a parallel rod 3.2 of the combined type cutter bar (3) is connected with the cutter (2), the other end of the parallel rod is installed in an inner hole of the first spring chuck (5), the first spring chuck (5) and the transducer spring chuck holder (1.1) are positioned in a matched mode through conical surfaces, the first pressing cap (4) presses and fixes the first spring chuck (5) on the transducer spring chuck holder (1.1), the first spring chuck (5) is enabled to clamp the combined type cutter bar (3), and the first pressing cap (4) is in threaded connection with the transducer (1). The connection mode of the combined cutter bar (3) and the cutter (2) comprises but is not limited to mechanical structure connection, welding and bonding.
EXAMPLE III
In the embodiment, as shown in fig. 4, the rotary ultrasonic processing device capable of expanding the bandwidth of the invention comprises a transducer (1), a cutter (2) and a combined cutter bar (3), wherein a transducer threaded hole (1.2) is formed in the amplitude output end surface of the transducer (1). The connection relation among the energy converter (1), the cutter (2) and the combined cutter bar (3) is as follows: one end of the combined type cutter bar (3) is connected with the cutter (2), and the other end of the connecting 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 mode of the combined cutter bar (3) and the cutter (2) comprises but is not limited to mechanical structure connection, welding and bonding.
Example four
As shown in figure 5, the combined type cutter bar (3) comprises a parallel sleeve (3.1) and a parallel rod (3.2), wherein the parallel sleeve (3.1) is installed on the parallel rod (3.2) in a mode of, but not limited to, mechanical structure connection, welding and bonding.
In this embodiment, the shunt 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 the embodiment, when the transducer (1) outputs ultrasonic vibration, ultrasonic is input from one end of the parallel sleeve (3.1) and one end of the parallel rod (3.2) and output from the other end of the parallel sleeve (3.1) and the other end of the parallel rod (3.2) to drive the cutter (2) connected with the other end to vibrate ultrasonically. In the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes partial 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 bandwidth comprises a collet chuck (6) and a 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 collet seat (3.2.1) and a parallel rod thread (3.2.2) are respectively arranged on the end surface and the outer cylindrical surface of one end of the link 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 chuck (6) and the blind rivet (7) is as follows: the tool (2) is arranged in an inner hole of the collet chuck (6), the collet chuck (6) is in conical surface fit with the parallel rod collet seat (3.2.1), the pull nail (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 collet chuck (6) is enabled to clamp the tool (2).
In this embodiment, the shunt 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 the embodiment, when the transducer (1) outputs ultrasonic vibration, ultrasonic is input from one end of the parallel sleeve (3.1) and one end of the parallel rod (3.2) and output from the other end of the parallel sleeve (3.1) and the other end of the parallel rod (3.2) to drive the cutter (2) connected with the other end to vibrate ultrasonically. In the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes partial ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
EXAMPLE six
As shown in fig. 8, the combined type 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 threaded hole (3.2.3) and a parallel rod thread (3.2.2) are respectively formed in the end face and the outer cylindrical face of one end of a link rod (3.2), the round nut (3.6) is installed on the parallel rod thread (3.2.2) of the link rod (3.2), and the first gasket (3.7), the parallel sleeve (3.1) and the second gasket (3.8) are sequentially installed on the link rod (3.2) from the other side of the link 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 parallel rod threaded hole (3.2.3).
In this embodiment, the shunt 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 the embodiment, when the transducer (1) outputs ultrasonic vibration, ultrasonic is input from one end of the parallel sleeve (3.1) and one end of the parallel rod (3.2) and output from the other end of the parallel sleeve (3.1) and the other end of the parallel rod (3.2) to drive the cutter (2) connected with the other end to vibrate ultrasonically. In the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes partial ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
EXAMPLE seven
As shown in fig. 9, 10 and 11, the present invention relates to a bandwidth-extended rotary ultrasonic processing device, wherein the combined cutter bar (3) comprises a first serial link (3.3) and a second serial link (3.4), the end surfaces 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, the other end of the second serial link (3.4) is connected with the cutter, and the connection modes include but not limited to mechanical structure connection, welding and bonding.
In this embodiment, the first linkage rod (3.3) is a series of parts made of materials with different damping coefficients, which can be replaced according to the bandwidth and the mechanical quality factor of the vibration system.
In the embodiment, when the transducer (1) outputs ultrasonic vibration, ultrasonic wave is input from one end connected with the first serial link (3.3), passes through the first serial link (3.3) and the second serial link (3.4) in sequence, and is output from one end connected with the cutter (2) of the second serial link (3.4), so that the cutter (2) is driven to vibrate in an ultrasonic mode. During the ultrasonic transmission process, the material damping of the first series link (3.3) consumes part of the ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
Example eight
As shown in fig. 12, the combined type cutter bar (3) of the rotary ultrasonic processing device capable of expanding the bandwidth of the invention comprises a first serial link rod (3.3), a second serial link rod (3.4), a second gasket (3.8), a second press cap (3.9), a second spring collet (3.10) and a third gasket (3.11). The end face of one end of the first serial link rod (3.3) is provided with a first serial link rod threaded hole (3.3.1). The end face of one end of the second serial rod (3.4) is provided with a second serial rod thread column (3.4.1), and the outer cylindrical surface and the end face of the other end of the second serial rod (3.4) are respectively provided with a second serial rod thread (3.4.2) and a second chuck seat (3.4.3). The third gasket (3.11) is installed on the second series rod threaded column (3.4.1), the second series rod threaded column (3.4.1) is in threaded connection with the first series connecting rod threaded hole (3.3.1), the first series connecting rod (3.3) and the second series connecting rod (3.4) are required to be in close contact with the third gasket (3.11) during installation so as to reduce energy loss in the ultrasonic vibration transmission process, and the second gasket (3.8) is installed on a cylinder at the smaller end of the first series connecting rod (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 in conical surface fit with the second chuck seat (3.4.3), the second pressing cap (3.9) presses the second spring chuck (3.10) on the second chuck seat (3.4.3), the second spring chuck is in threaded connection through a second series rod thread (3.4.2), and the second spring chuck (3.10) is enabled to clamp the cutter (2).
In this embodiment, the first linkage rod (3.3) is a series of parts made of materials with different damping coefficients, which can be replaced according to the bandwidth and the mechanical quality factor of the vibration system.
In the embodiment, when the transducer (1) outputs ultrasonic vibration, the ultrasonic wave passes through the second gasket (3.4), the first serial link rod (3.3), the third gasket (3.11), the second serial link rod (3.4), the second spring chuck (3.10) and the second pressing cap (3.9) in sequence, and the cutter (2) is driven to vibrate in an ultrasonic mode. During the ultrasonic transmission process, the material damping of the first series link (3.3) consumes part of the ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
Example nine
As shown in fig. 13, the combined type cutter bar (3) of the rotary ultrasonic processing device capable of expanding the bandwidth of the invention comprises a first serial link rod (3.3), a second serial link rod (3.4), a second gasket (3.8), a second press cap (3.9), a second spring collet (3.10) and a third gasket (3.11). The end face of one end of the first serial link rod (3.3) is provided with a first serial link rod threaded hole (3.3.1). And a second series rod threaded column (3.4.1) is arranged on one end face of the second series rod (3.4), and a second series rod threaded hole (3.4.4) is arranged on the other end face of the second series rod. The third gasket (3.11) is installed on the second series rod threaded column (3.4.1), the second series rod threaded column (3.4.1) is in threaded connection with the first series connecting rod threaded hole (3.3.1), the first series connecting rod (3.3) and the second series connecting rod (3.4) are required to be in close contact with the third gasket (3.11) during installation so as to reduce energy loss in the ultrasonic vibration transmission process, and the second gasket (3.8) is installed on a cylinder at the smaller end of the first series connecting rod (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 cutter thread (2.1) is in threaded connection with the second series rod threaded hole (3.4.4).
In this embodiment, the first linkage rod (3.3) is a series of parts made of materials with different damping coefficients, which can be replaced according to the bandwidth and the mechanical quality factor of the vibration system.
In the embodiment, when the transducer (1) outputs ultrasonic vibration, the ultrasonic wave passes through the second gasket (3.4), the first serial link rod (3.3), the third gasket (3.11), the second serial link rod (3.4), the second spring chuck (3.10) and the second pressing cap (3.9) in sequence, and the cutter (2) is driven to vibrate in an ultrasonic mode. During the ultrasonic transmission process, the material damping of the first series link (3.3) consumes part of the ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
Example ten
As shown in fig. 14 and 15, the rotary ultrasonic processing device capable of expanding bandwidth of the invention comprises a combined type cutter bar (3) and a parallel sleeve (3.1), wherein the combined type cutter bar (3) comprises a mixed connecting rod (3.5) and a parallel sleeve (3.1), the mixed connecting rod (3.5) is a stepped shaft, the end with larger diameter is a series-parallel connecting rod section (3.5.1), the end with smaller diameter is a parallel connecting rod section (3.5.2), the parallel sleeve (3.1) is installed on the parallel connecting rod section (3.52), the end face of one end of the parallel sleeve (3.1) is connected with the stepped face of the mixed connecting rod (3.5), the end face of the series-parallel connecting rod section (3.5.1) is connected with a transducer, the parallel connecting rod section (3.5.2) is connected with a cutter, and the connection modes include but are not limited to mechanical structure connection, welding and.
In this embodiment, the shunt 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 the embodiment, when the transducer outputs ultrasonic vibration, ultrasonic wave is input from one end connected with the series section (3.5.1) of the hybrid rod, firstly transmitted through the series section (3.5.1) of the hybrid rod, then simultaneously transmitted through the parallel section (3.5.2) of the hybrid rod and the parallel sleeve (3.1), and finally output from the other end of the parallel section (3.5.2) of the hybrid rod and the parallel sleeve (3.1) of the hybrid rod, and the cutter (2) is driven to perform ultrasonic vibration. In the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes partial ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
EXAMPLE eleven
As shown in fig. 16 and 17, the present invention relates to a bandwidth-expandable rotary ultrasonic processing device, which further comprises a collet chuck (6) and a pull nail (7), and is characterized in that:
the combined type cutter bar (3) comprises a mixing 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 the larger diameter of the mixed link rod (3.5) is a series-parallel link rod series-connection section (3.5.1), the end with the smaller diameter is a series-parallel link rod parallel-connection section (3.5.2), and the end surface and the outer cylindrical surface of one end of the series-parallel link rod parallel-connection section (3.5.2) are respectively provided with a series-parallel link rod clamping head seat (3.5.3) and a series-parallel link rod thread (3.5.4). 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 thread (3.5.4) of the mixed link rod, and the second gasket (3.8) is arranged on a small cylinder at one end of the series section (3.5.1) of the mixed link rod.
The connection relation among the cutter (2), the combined cutter bar (3), the spring collet chuck (6) and the blind rivet (7) is as follows: the tool (2) is arranged in an inner hole of the collet chuck (6), the collet chuck (6) is in conical surface fit with the collet chuck seat (3.5.3) of the hybrid rod, the pull nail (7) is inserted into the inner hole at the other end of the hybrid rod (3.5) and is arranged with the collet chuck (6) through threads, the collet chuck (6) is tensioned and fixed, and the collet chuck (6) is enabled to clamp the tool (2).
In this embodiment, the shunt 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 the embodiment, when the transducer (1) outputs ultrasonic vibration, the ultrasonic firstly passes through the second gasket (3.8) and the series-parallel connection section (3.5.1) of the hybrid connection rod, then a part of the ultrasonic is continuously transmitted to the other end of the combined cutter bar (3) through the parallel connection section (3.5.2) of the hybrid connection rod, the other part of the ultrasonic is transmitted to the other end of the combined cutter bar (3) through the third gasket (3.11), the parallel connection sleeve (3.1), the first gasket (3.7) and the round nut (3.6) in sequence, and the two parts of the ultrasonic jointly drive the cutter (2) to carry out ultrasonic vibration. In the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes partial ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
Example twelve
As shown in fig. 18, the combined type cutter bar (3) of the rotary ultrasonic processing device capable of expanding the bandwidth of the invention comprises a mixing 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 the larger diameter of the hybrid rod (3.5) is a series-parallel connection section (3.5.1), the end with the smaller diameter is a parallel-parallel connection section (3.5.2), and a series-parallel connection rod threaded hole (3.5.5) and a series-parallel connection rod thread (3.5.4) are respectively arranged on the end surface and the outer cylindrical surface of one end of the parallel-parallel connection section (3.5.2). 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 thread (3.5.4) of the mixed link rod, and the second gasket (3.8) is arranged on a small cylinder at one end of the series 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 connecting rod.
In this embodiment, the shunt 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 the embodiment, when the transducer (1) outputs ultrasonic vibration, the ultrasonic firstly passes through the second gasket (3.8) and the series-parallel connection section (3.5.1) of the hybrid connection rod, then a part of the ultrasonic is continuously transmitted to the other end of the combined cutter bar (3) through the parallel connection section (3.5.2) of the hybrid connection rod, the other part of the ultrasonic is transmitted to the other end of the combined cutter bar (3) through the third gasket (3.11), the parallel connection sleeve (3.1), the first gasket (3.7) and the round nut (3.6) in sequence, and the two parts of the ultrasonic jointly drive the cutter (2) to carry out ultrasonic vibration. In the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes partial ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
The damping materials described in all of the above embodiments include, but are not limited to, metals, inorganic non-metals, ceramics, organic polymers, and composites.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The rotary ultrasonic processing device capable of expanding the bandwidth is characterized by comprising an energy converter (1), a cutter (2) and a combined cutter bar (3), wherein one end of the combined cutter bar (3) is connected with the energy converter (1), and the other end of the combined cutter bar is connected with the cutter (2); the combined type cutter bar (3) comprises a sleeve part and rod-shaped parts, wherein the sleeve part and the corresponding rod-shaped parts can be coaxially connected in parallel or partially connected in series and partially connected in parallel, and the two rod-shaped parts can be coaxially connected in series in an end face contact manner to form the required combined type cutter bar; when the parallel connection is carried out, 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 part and/or the rod part are made of damping materials with different damping coefficients.
2. The bandwidth-expandable rotary ultrasonic machining device according to claim 1, wherein the sleeve portion is a parallel sleeve (3.1), the rod portion is a parallel link rod (3.2), and the parallel sleeve (3.1) is sleeved on the parallel link rod (3.2).
3. The bandwidth-expandable rotary ultrasonic machining device according to claim 2, characterized in that the parallel link rod (3.2) is connected with the cutter (2), and the end face of the parallel sleeve (3.1) is connected with the amplitude output end face of the transducer (1) in a contact manner directly or through a connecting piece; in the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes partial ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
4. The bandwidth-expandable rotary ultrasonic processing device according to claim 1, wherein the number of the rod-shaped parts is two, and the two rod-shaped parts comprise a first serial connecting rod (3.3) and a second serial connecting rod (3.4), and the first serial connecting rod (3.3) and the second serial connecting rod (3.4) are connected in series in an end face contact manner.
5. The bandwidth-expandable rotary ultrasonic machining device according to claim 4, characterized in that the end face of the first series of link rods (3.3) is connected with the amplitude output end face of the transducer (1) in a contact manner directly or through a connecting piece, and the second series of link 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 the ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
6. The bandwidth-extended rotary ultrasonic machining device according to claim 1, wherein the sleeve portion comprises a parallel sleeve (3.1), the rod portion comprises a hybrid rod (3.5), and the hybrid rod (3.5) is a stepped shaft; the one end that the diameter is great of mixing link (3.5) is for mixing link series section (3.5.1), and the one end that the diameter is less is for mixing link parallel section (3.5.2), and parallel sleeve (3.1) suit is on mixing link parallel section (3.5.2), and an terminal surface of parallel sleeve (3.1) and the ladder face of mixing link (3.5) link to each other.
7. The bandwidth-expandable rotary ultrasonic processing device according to claim 6, wherein the end face of the serial section (3.5.1) of the hybrid rod is connected with the amplitude output end face of the transducer (1) in a contact manner directly or through a mechanical seal between planes, and the parallel section (3.5.2) of the hybrid rod is connected with a cutter; in the ultrasonic transmission process, the material damping of the parallel sleeve (3.1) consumes partial ultrasonic energy, and reduces the mechanical quality factor, thereby expanding the bandwidth.
8. The apparatus of claim 1, wherein the damping material comprises metals, inorganic non-metals, ceramics, organic polymers, and composites.
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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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| CN115318606A (en) * | 2022-09-15 | 2022-11-11 | 天津大学 | Non-contact type large-bandwidth ultrasonic machining annexing machining system |
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