CN113857511B - Tunable damping vibration attenuation cutter arbor - Google Patents
Tunable damping vibration attenuation cutter arbor Download PDFInfo
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- CN113857511B CN113857511B CN202111307375.9A CN202111307375A CN113857511B CN 113857511 B CN113857511 B CN 113857511B CN 202111307375 A CN202111307375 A CN 202111307375A CN 113857511 B CN113857511 B CN 113857511B
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- connecting rod
- cutter
- mass block
- adjusting nut
- cutter head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a tunable damping vibration attenuation cutter bar, which comprises a cutter bar body, a power vibration absorption unit, an adjusting unit and a cutter head connecting sleeve, wherein the cutter bar body is provided with a mounting cavity, the power vibration absorption unit comprises a connecting rod, a mass block and a plug, the adjusting unit comprises an elastic piece and an adjusting nut, the connecting rod is arranged in the mounting cavity, the mass block, the plug, the elastic piece and the adjusting nut are sequentially sleeved on the connecting rod, the rear end of the connecting rod is provided with a rear end axial limiting part, the mass block is abutted against the rear end axial limiting part, the adjusting nut is in threaded connection with the connecting rod, the cutter head connecting sleeve is inserted into an opening of the mounting cavity, the adjusting nut is positioned in the cutter head connecting sleeve, the inner wall of the cutter head connecting sleeve is provided with a front end axial limiting part, the radial end face of the adjusting nut is abutted against the front end axial limiting part, the circumferential face of the elastic piece is abutted against the front end axial limiting part, and damping liquid or high damping viscoelastic body is arranged between the mass block and the connecting rod. The invention has the advantages of cantilever type dynamic vibration reduction unit and good vibration reduction effect.
Description
Technical Field
The invention relates to the field of metal cutting machining, in particular to a tunable damping vibration attenuation cutter bar.
Background
The long overhanging cutter has the disadvantages of poor processing quality, low cutter service life, low processing efficiency, high noise in the working environment and the like because the cutter bar is easy to vibrate in the processing process.
Problems of the prior art: (1) The current vibration-damping tool holders often do not have tuning capability and have small range of adaptive cutting parameters, such as the patent document CN 111194252A, "tool body including damping device and machining tool having such tool body", and the patent document CN209614977U, "power vibration-absorbing unit and tool holder and tool using the same. (2) The vibration damper is mainly characterized in that a scheme of supporting two ends is mainly adopted in the current vibration damper bar, vibration is reduced through axial translation of the vibration damper, the mass center of the vibration damper is far away from the cutter head, kinetic energy can be decomposed by supporting the two ends and two supporting ends can reduce vibration damping effect; (3) Some frequency-adjustable vibration-damping cutter bar patents have complex internal dynamic vibration-absorbing unit adjusting mechanical structures, difficult assembly and maintenance, and the adjustable mechanical structures of the dampers occupy a large amount of the internal space of the boring bar cavity, so that the volume of the required cutter bar cavity is increased, the static rigidity is reduced, and the vibration-damping effect is seriously affected. (4) Some damping cutter bar patents with adjustable damping and rigidity, such as patent document CN106239246a, electrorheological damping and vibration suppressing cutter bar with adjustable damping and rigidity and damping and vibration suppressing method, adopt electrorheological or magnetorheological body to adjust damping and rigidity, rely on the damping of a small amount of electrorheological body, and have relatively limited damping and vibration absorbing effects for the whole cutter bar when the structure is not aimed at isolating vibration sources. In summary, there is also a lack of a tunable vibration damping tool with a simple tuning structure, which has a better vibration damping effect.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a tunable damping vibration attenuation cutter bar with a cantilever type dynamic vibration attenuation unit and good vibration attenuation effect.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a tunable damping vibration attenuation cutter arbor, includes cutter arbor body, dynamic vibration absorbing unit, adjusting unit and tool bit adapter sleeve, the cutter arbor body is equipped with the installation cavity, the front end that the installation cavity is close to the cutter arbor body is uncovered, dynamic vibration absorbing unit includes connecting rod, quality piece and end cap, adjusting unit includes elastic component and adjusting nut, the connecting rod is located in the installation cavity, quality piece, end cap, elastic component and adjusting nut overlap in proper order on the connecting rod and support around leaning on, the rear end of connecting rod is equipped with rear end axial limit portion, quality piece supports with rear end axial limit portion and leans on, adjusting nut and connecting rod threaded connection, the tool bit adapter sleeve is inserted and is located in the opening of installation cavity, adjusting nut is located the tool bit adapter sleeve, the inner wall of tool bit adapter sleeve has front end axial limit portion, front end axial limit portion locates between adjusting nut and the quality piece, adjusting nut's radial end face supports on the front end axial limit portion, the circumference face and the front end axial limit portion of elastic component support, have the clearance between quality piece and the connecting rod, be equipped with clearance or high-viscosity damper body H between the connecting rod and the clearance has.
As a further improvement of the technical scheme, when damping fluid is in the gap, the dynamic vibration absorbing unit further comprises a first sealing element and a second sealing element, wherein the first sealing element is arranged between the mass block and the rear end axial limiting part, and the second sealing element is arranged between the mass block and the plug.
As a further improvement of the technical scheme, the front end and the rear end of the mass block are respectively provided with a groove II and a groove I, the sealing element I is arranged in the groove I, and the sealing element II is arranged in the groove II.
As a further improvement of the above technical solution, the elastic member is a spring or an elastic rubber pad.
As a further improvement of the technical scheme, the connecting rod is made of spring steel.
As a further improvement of the technical scheme, an axial adjusting gap H2 is arranged between the front end of the mass block and the cutter head connecting sleeve, and a radial adjusting gap H3 is arranged between the elastic piece and the inner wall of the cutter head connecting sleeve.
As a further improvement of the technical scheme, the tool bit connecting sleeve is in interference fit with the mounting cavity.
As a further improvement of the technical scheme, the front end of the tool bit connecting sleeve is provided with a sinking table, and the sinking table is abutted against the end face of the front end of the tool bar body.
As a further improvement of the above technical solution, the end face of the sinking table is provided with a screw for connecting the cutter head.
As a further improvement of the technical scheme, a first cooling channel is arranged in the connecting rod, a second cooling channel is arranged in the cutter bar body, and the first cooling channel is communicated with the second cooling channel.
Compared with the prior art, the invention has the advantages that:
the tunable damping vibration attenuation cutter bar has the advantages that firstly, the built-in power vibration absorption unit is designed into a cantilever beam structure, the part close to the maximum amplitude of the cutter head end is used as a fulcrum, the vibration of the cutter head is transmitted to the power vibration absorption unit through the connecting rod, the power vibration absorption unit reversely vibrates relative to the cutter head, the vibration of the cutter head is absorbed through the swinging of the power vibration absorption unit, and the vibration of the cutter head end can be effectively reduced relative to the vibration reduction of the two ends of the power vibration absorption unit supported by two ends, so that the vibration attenuation effect is better; secondly, when the adjusting nut 7 is screwed, the dynamic vibration absorbing unit translates towards the front end along the axial direction and compresses the elastic piece; when the adjusting nut is loosened, the compressed elastic piece is gradually restored, the released elastic force pushes the dynamic vibration absorber unit to translate along the axial direction away from the cutter head end, namely, the rigidity of the dynamic vibration absorber unit is adjusted by changing the compression degree of the elastic piece, and the tuning of the cutter bar is realized by translating the position of the mass block in the dynamic vibration absorber unit along the axial direction and tuning the frequency; compared with the frequency adjustable scheme designed on the basis of adopting a complex mechanical structure and losing the static stiffness of the cutter bar in the prior art, the invention greatly saves the internal space of the cutter bar body on the premise of ensuring the static stiffness of the cutter bar main body, so that the whole damper has simpler structure, wider tuning range, extremely simple adjustment mode and easier implementation and maintenance.
Drawings
Fig. 1 is a schematic structural view of a tunable damping vibration attenuation bar of embodiment 1 of the present invention-a dynamic vibration absorbing unit is moved forward.
Fig. 2 is a schematic diagram of a structure of a tunable damping vibration attenuation bar according to embodiment 1 of the present invention (a state in which a dynamic vibration absorbing unit moves backward).
Fig. 3 is a schematic diagram III of a tunable damping vibration attenuation knife bar of embodiment 1 of the present invention (with seal one, seal two, plug, elastic member and adjustment nut removed).
Fig. 4 is a schematic structural view of a tunable damping vibration attenuation bar according to embodiment 2 of the present invention.
The reference numerals in the drawings denote:
1. a cutter bar body; 11. a mounting cavity; 12. a second cooling channel; 2. the tool bit connecting sleeve; 21. a front end axial limit part; 22. a sinking platform; 23. a screw; 3. a connecting rod; 31. a rear end axial limit part; 32. a first cooling channel; 4. a mass block; 41. a groove I; 42. a second groove; 5. a plug; 6. an elastic member; 61. a spring; 7. an adjusting nut; 81. damping fluid; 82. a high damping viscoelastic body; 91. a first sealing element; 92. and a second sealing element.
Detailed Description
The invention is described in further detail below with reference to the drawings and specific examples of the specification.
Example 1
As shown in fig. 1 to 3, the tunable damping vibration attenuation cutter bar of this embodiment includes a cutter bar body 1, a dynamic vibration absorbing unit, an adjusting unit and a cutter head connecting sleeve 2, the cutter bar body 1 is provided with a mounting cavity 11, the front end of the mounting cavity 11, which is close to the cutter bar body 1, is open, and the front end of the cutter bar body 1 is one end for mounting a cutter head. The dynamic vibration absorbing unit comprises a connecting rod 3, a mass block 4 and a plug 5. The adjusting unit comprises an elastic piece 6 and an adjusting nut 7, the connecting rod 3 is arranged in the installation cavity 11, the mass block 4, the plug 5, the elastic piece 6 and the adjusting nut 7 are sequentially sleeved on the connecting rod 3 and propped against each other, namely, the mass block 4, the plug 5, the elastic piece 6 and the adjusting nut 7 are sequentially propped against each other, wherein the adjusting nut 7 is arranged on the outer side, and the mass block 4 is arranged on the inner side. The rear end of connecting rod 3 is equipped with rear end axial limit portion 31, quality piece 4 and rear end axial limit portion 31 support and lean on, adjusting nut 7 and connecting rod 3 threaded connection, tool bit adapter sleeve 2 inserts and locates in the uncovered of installation cavity 11, adjusting nut 7 is located tool bit adapter sleeve 2, the inner wall of tool bit adapter sleeve 2 has front end axial limit portion 21, front end axial limit portion 21 locates between adjusting nut 7 and quality piece 4, adjusting nut 7's radial terminal surface supports and leans on front end axial limit portion 21 (front end axial limit portion 21 can prevent adjusting nut 7 axial displacement), elastic component 6's circumference face and front end axial limit portion 21 support (i.e. elastic component 6 is the stopper in the hole of front end axial limit portion 21, elastic component 6 radial run-out has been prevented), be equipped with the damping liquid 81 between quality piece 4 and the connecting rod 3 in this clearance, front end axial limit portion 21 and end cap 5 can play protection damping liquid 81, prevent that damping liquid 81 from overflowing.
When the tunable damping vibration attenuation cutter bar is installed, the connecting rod 3 is firstly placed in the installation cavity 11, then the mass block 4 is sleeved on the connecting rod 3 and is inwards pushed to be abutted against the rear end axial limiting part 31, then damping liquid 81 is filled between the mass block 4 and the connecting rod 3, the plug 5 is sleeved again to block the damping liquid 81, the cutter head connecting sleeve 2 is installed and is fixed with the front end of the cutter bar body 1, the elastic piece 6 and the adjusting nut 7 are sleeved finally, the adjusting nut 7 is limited by the front end axial limiting part 21 of the cutter head connecting sleeve 2, and the elastic piece 6 is compressed between the adjusting nut 7 and the plug 5. After assembly, an axial adjusting gap H1 is formed between the rear end of the connecting rod 3 and the bottom wall of the mounting cavity 11, and as the elastic piece 6 is clamped in the inner hole of the front end axial limiting part 21, the front end of the connecting rod 3 forms a cantilever structure which takes the elastic piece 6 and the front end axial limiting part 21 which are matched with each other as a fulcrum. The rear end of the connecting rod 3 is in a suspended state in the installation cavity 11.
Firstly, the built-in power vibration absorbing unit is designed into a cantilever beam structure, the position close to the maximum amplitude of the cutter head end is used as a fulcrum, the vibration of the cutter head is transmitted to the power vibration absorbing unit through the connecting rod, the power vibration absorbing unit reversely vibrates relative to the cutter head, the vibration of the cutter head is absorbed through the swinging of the power vibration absorbing unit, and the vibration of the cutter head end can be effectively reduced relative to the vibration reduction of the two ends of the power vibration absorbing unit supported by two ends, so that the vibration reduction effect is better. Secondly, when the adjusting nut 7 is screwed, the dynamic vibration absorbing unit translates toward the front end (i.e., the bit end, the right end in fig. 1) in the axial direction and compresses the elastic member 6; when the adjusting nut 7 is loosened, the compressed elastic piece 6 is gradually restored, the released elastic force pushes the dynamic vibration absorbing unit to translate along the axial direction away from the cutter head end (the left end in fig. 2), namely, the rigidity of the dynamic vibration absorbing unit is adjusted by changing the compression degree of the elastic piece 6, and the tuning of the cutter bar is realized by translating the position of the mass block 4 in the dynamic vibration absorbing unit along two axial directions and tuning the frequency.
The elastic piece 6 has two main functions, namely, in the axial direction, the situation that the plug 5 and the adjusting nut 7 are hard is avoided, so that the movement of the dynamic vibration absorbing unit in the axial direction is flexibly buffered, the vibration absorbing effect is further improved, and the connecting rod 3 is pushed to move towards the rear end (far away from the cutter head end) by the compression force of the elastic piece 6 when the adjusting nut 7 is loosened; secondly, in the radial direction, the elastic piece 6 avoids the hard collision condition of the connecting rod and the front end axial limiting part 21, so that the up-and-down swing of the connecting rod 3 is flexibly buffered, and the vibration reduction effect is further improved. In the present embodiment, the elastic member 6 is preferably a spring 61, specifically one of a metal spring, a rubber spring and an air spring. In addition to the present embodiment, in other embodiments, an elastic rubber pad may be used for the elastic member 6.
In this embodiment, an axial adjustment gap H2 is formed between the front end of the mass block 4 and the tool bit connecting sleeve 2, and a radial adjustment gap H3 is formed between the elastic member 6 and the inner wall of the tool bit connecting sleeve 2. At the initial position, an axial adjusting gap H1 is reserved between the mass block 4 and the rear end, so that the mass block 4 can conveniently move towards the rear end, an axial adjusting gap H2 is reserved between the mass block 4 and the front end, and the mass block 4 is prevented from colliding with the cutter head connecting sleeve 2 after the mass block 4 moves forwards by H2. The radial adjusting gap H3 is arranged to provide a reserved space for the connecting rod 3 to swing up and down in the radial direction, so that collision with the tool bit connecting sleeve 2 is avoided.
In this embodiment, the rear end axial limiting portion 31 and the connecting rod 3 are integrally formed, and it should be noted that, in other embodiments, the rear end axial limiting portion 31 and the connecting rod 3 may be separate structures, which are integrally connected by welding or screws.
In the present embodiment, the damping liquid 81 is taken as an example of the damping material in the gap between the mass 4 and the connecting rod 3, and since the damping liquid 81 is liquid, the damping liquid easily leaks out, especially in the case of vibration. For this reason, the dynamic vibration absorbing unit further includes a first seal 91 and a second seal 92, the first seal 91 is disposed between the mass block 4 and the rear end axial limiting portion 31, and the second seal 92 is disposed between the mass block 4 and the plug 5. The first seal 91 and the second seal 92 are respectively arranged at two ends of the gap to seal the damping fluid 81 in the gap, thereby preventing leakage.
Specifically, the front end and the rear end of the mass block 4 are respectively provided with a groove two 42 and a groove one 41, a seal one 91 is arranged in the groove one 41, and a seal two 92 is arranged in the groove two 42. The first seal 91 and the second seal 92 are preferably O-rings.
In this embodiment, the connecting rod 3 is spring steel. The connecting rod 3 is required to swing up and down in the installation cavity 11, so that certain elasticity is required to resist bending, the connecting rod 3 with special alloy characteristics of spring steel is used as a vibration transmission medium, compared with a power vibration absorption unit with rubber elements at two ends, the response is quicker, the vibration convergence period is further shortened, and the vibration reduction effect is improved.
In this embodiment, the front end of the tool bit connecting sleeve 2 has a sinking platform 22, and the sinking platform 22 abuts against the front end surface of the tool bar body 1. The tool bit connecting sleeve 2 is in interference fit with the mounting cavity 11, and the tool bit connecting sleeve 2 is connected with the tool bar body 1 through interference fit. The end face of the sinking table 22 is provided with a screw 23 for connecting the cutter head, and the cutter head is fixed on the cutter head connecting sleeve 2 through the screw 23, so that the cutter head and the cutter bar are assembled.
In this embodiment, the first cooling channel 32 is disposed in the connecting rod 3, the second cooling channel 12 is disposed in the cutter bar body 1, the first cooling channel 32 is communicated with the second cooling channel 12, and the cooling is used for cooling the cutter head during cutting.
Example 2
As shown in fig. 4, the tunable damping vibration attenuation knife bar of this embodiment differs from embodiment 1 only in that:
in this embodiment, the damping material in the gap between the mass block 4 and the connecting rod 3 is a high damping viscoelastic body 82, and the high damping viscoelastic body 82 is not liquid, and is a colloid, so that the sealing element one 91 and the sealing element two 92 are not needed to be adopted for sealing.
The remaining details are substantially the same as those of example 1 and will not be described again here.
While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the invention. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention shall fall within the scope of the technical solution of the present invention.
Claims (10)
1. A tunable damping vibration attenuation cutter arbor, its characterized in that: the cutter bar comprises a cutter bar body (1), a power vibration absorbing unit, an adjusting unit and a cutter head connecting sleeve (2), wherein the cutter bar body (1) is provided with an installation cavity (11), the front end of the installation cavity (11) close to the cutter bar body (1) is open, the power vibration absorbing unit comprises a connecting rod (3), a mass block (4) and a plug (5), the adjusting unit comprises an elastic piece (6) and an adjusting nut (7), the connecting rod (3) is arranged in the installation cavity (11), the mass block (4), the plug (5), the elastic piece (6) and the adjusting nut (7) are sequentially sleeved on the connecting rod (3) and abut against the front end and the rear end, the rear end of the connecting rod (3) is provided with a rear end axial limiting part (31), the adjusting nut (7) is in threaded connection with the connecting rod (3), the cutter head (2) is inserted into the opening of the installation cavity (11), the adjusting nut (7) is positioned in the connecting sleeve (2), the inner wall (21) of the cutter head (2) is provided with a front end axial limiting part (21) and a front end limiting part (21) of the adjusting nut (21), the radial end face of the adjusting nut (7) is propped against the front end axial limiting part (21), the circumferential face of the elastic piece (6) is propped against the front end axial limiting part (21), a gap is formed between the mass block (4) and the connecting rod (3), damping fluid (81) or a high damping viscoelastic body (82) is arranged in the gap, and an axial adjusting gap H1 is formed between the rear end of the connecting rod (3) and the bottom wall of the mounting cavity (11).
2. The tunable damping vibration attenuation knife bar of claim 1 wherein: when damping fluid (81) is in the clearance, the dynamic vibration absorbing unit further comprises a first sealing element (91) and a second sealing element (92), wherein the first sealing element (91) is arranged between the mass block (4) and the rear end axial limiting part (31), and the second sealing element (92) is arranged between the mass block (4) and the plug (5).
3. The tunable damping vibration attenuation knife bar of claim 2 wherein: the front end and the rear end of the mass block (4) are respectively provided with a groove II (42) and a groove I (41), the sealing piece I (91) is arranged in the groove I (41), and the sealing piece II (92) is arranged in the groove II (42).
4. A tuneable damping vibration attenuation bar according to any one of claims 1 to 3, wherein: the elastic piece (6) is a spring (61) or an elastic rubber pad.
5. A tuneable damping vibration attenuation bar according to any one of claims 1 to 3, wherein: the connecting rod (3) is made of spring steel.
6. A tuneable damping vibration attenuation bar according to any one of claims 1 to 3, wherein: an axial adjusting gap H2 is formed between the front end of the mass block (4) and the cutter head connecting sleeve (2), and a radial adjusting gap H3 is formed between the elastic piece (6) and the inner wall of the cutter head connecting sleeve (2).
7. A tuneable damping vibration attenuation bar according to any one of claims 1 to 3, wherein: the tool bit connecting sleeve (2) is in interference fit with the mounting cavity (11).
8. A tuneable damping vibration attenuation bar according to any one of claims 1 to 3, wherein: the front end of the cutter head connecting sleeve (2) is provided with a sinking table (22), and the sinking table (22) is abutted against the front end face of the cutter bar body (1).
9. The tunable damping vibration attenuation knife bar according to claim 8, wherein: the end face of the sinking table (22) is provided with a screw (23) for connecting a cutter head.
10. A tuneable damping vibration attenuation bar according to any one of claims 1 to 3, wherein: the cutter bar is characterized in that a first cooling channel (32) is arranged in the connecting rod (3), a second cooling channel (12) is arranged in the cutter bar body (1), and the first cooling channel (32) is communicated with the second cooling channel (12).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111307375.9A CN113857511B (en) | 2021-11-05 | 2021-11-05 | Tunable damping vibration attenuation cutter arbor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111307375.9A CN113857511B (en) | 2021-11-05 | 2021-11-05 | Tunable damping vibration attenuation cutter arbor |
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| CN113857511A CN113857511A (en) | 2021-12-31 |
| CN113857511B true CN113857511B (en) | 2023-06-09 |
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| CN116833437A (en) * | 2023-07-14 | 2023-10-03 | 松德刀具（长兴）科技有限公司 | Antimagnetic vibration damping cutter for processing deep holes of permanent magnet parts |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2527516B2 (en) * | 1992-11-02 | 1996-08-28 | 日本ニューマチック工業株式会社 | Vibration cutting equipment |
| JP2001328022A (en) * | 2000-05-24 | 2001-11-27 | Mitsubishi Materials Corp | Vibration damping tool |
| JP2005279819A (en) * | 2004-03-29 | 2005-10-13 | Kyocera Corp | Boring bar for bore machining |
| FR3007305B1 (en) * | 2013-06-20 | 2015-07-17 | Seco E P B | AXIAL MOBILE ELEMENT FOR ROTARY TOOL DAMPING SYSTEM |
| US20180281074A1 (en) * | 2017-03-31 | 2018-10-04 | Kennametal Inc. | Cantilever-supported tuned dynamic absorber |
| CN109317706A (en) * | 2017-07-31 | 2019-02-12 | 田中金属加工（上海）有限公司 | A kind of deep hole machining damping boring cutter bar for numerically controlled lathe |
| CN212946774U (en) * | 2020-06-10 | 2021-04-13 | 宁波欧乐机械有限公司 | Damping shock absorber |
| CN212945475U (en) * | 2020-06-10 | 2021-04-13 | 宁波欧乐机械有限公司 | Fine-adjustment precision boring cutter with damping vibration attenuation function |
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