CN115055987B - Autonomous vibration damping cutter bar - Google Patents
Autonomous vibration damping cutter bar Download PDFInfo
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- CN115055987B CN115055987B CN202210785018.1A CN202210785018A CN115055987B CN 115055987 B CN115055987 B CN 115055987B CN 202210785018 A CN202210785018 A CN 202210785018A CN 115055987 B CN115055987 B CN 115055987B
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- 238000013016 damping Methods 0.000 title claims abstract description 66
- 238000005096 rolling process Methods 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 description 22
- 238000009434 installation Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005316 response function Methods 0.000 description 5
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- 238000006243 chemical reaction Methods 0.000 description 3
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000013332 literature search Methods 0.000 description 1
- 208000003580 polydactyly Diseases 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
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- 238000012546 transfer Methods 0.000 description 1
Classifications
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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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The application belongs to the technical field of machining and discloses an autonomous vibration reduction cutter bar, which comprises a mounting seat for mounting a cutter head, a cutter bar and a vibration reduction module for relieving vibration of the cutter bar in the machining process, wherein the mounting seat is detachably connected with the cutter bar; the cutter arbor is provided with and is used for holding damping module's cavity, damping module be located in the cavity and with cutter arbor normal running fit, damping module includes quality spare and rotation piece, quality spare with rotate the piece and rotate and be connected, rotate the piece with the cavity inner wall supports pressure and roll fit. The application can convert most of vibration energy into kinetic energy of the vibration reduction module to consume rotation energy, thereby playing the role of absorbing vibration energy and greatly reducing the vibration amplitude of the cutter bar.
Description
Technical Field
The application belongs to the technical field of machining, and relates to an autonomous vibration reduction cutter bar.
Background
Along with the development of intelligent manufacturing, the manufacturing industry is continuously transformed and upgraded, and the precise manufacturing of some ultra-long parts becomes one of the process bottlenecks for restricting the development of high-end equipment. In the processing process of the ultra-long part, the problem that the cutter vibrates due to the rigidity of the cutter, and the cutting force of the cutter can be changed due to the vibration in the processing process, so that the processing surface quality of a workpiece and the service life of the cutter are affected, and the production cost and the processing efficiency are directly affected.
In the use process of the cutter, the traditional vibration reduction measures are generally controlled by adjusting parameters of a numerical control machine tool and experience of workers through daily accumulation and moon, but when the cutter bar is longer, the capability of the traditional vibration reduction measures is greatly reduced. The patent CN201811497890.6 discloses an anti-vibration cutter bar, including tool bit and body of rod, tool bit and body of rod are inside to form the cavity, the inside of cavity is equipped with vibration damping block, lower vibration damping block, a plurality of upper belleville springs, compression spring and a plurality of lower belleville springs, a plurality of upper belleville springs range upon range of cover is established on the last spacing post of upper vibration damping block's upper end, and be located between the up end of the first post portion of upper vibration damping block and the roof of cavity, a plurality of lower belleville springs range upon range of cover is established on the lower spacing post of the lower end of lower vibration damping block, and be located between the lower end of the second post portion of lower vibration damping block and the diapire of cavity, compression spring sets up between the first post portion of upper vibration damping block and the second post portion of lower vibration damping block, and compression spring's upper portion cover is established on the spacing boss of upper vibration damping block's lower portion, compression spring's lower part cover is established on the telescopic link of lower vibration damping block's upper portion, upper vibration damping block's lower part is movable sets up in the telescopic link. When the anti-vibration cutter bar works, vibration generated by the cutter bar is transmitted to the upper vibration reduction block and the lower vibration reduction block through the plurality of upper belleville springs and the plurality of lower belleville springs, the upper vibration reduction block and the lower vibration reduction block generate vibration along with the vibration reduction block, the plurality of upper belleville springs, the plurality of lower belleville springs and the compression springs generate elastic deformation, the vibration can be effectively counteracted, and the vibration amplitude of the cutter bar is reduced.
Aiming at the related technical means, the internal vibration reduction mechanical structure is complex, and the assembly and maintenance are difficult.
Disclosure of Invention
In order to overcome the defects of complex internal vibration reduction mechanical structure and difficult assembly and maintenance, the application provides an autonomous vibration reduction cutter bar.
The application provides an autonomous vibration damping cutter bar, which adopts the following technical scheme:
An autonomous vibration damping cutter bar comprising:
The mounting seat is used for mounting the tool bit;
The cutter bar is arranged on a peripheral machine tool, and the mounting seat is detachably connected with the cutter bar;
The vibration reduction module is used for relieving the vibration of the cutter bar in the processing process; the cutter arbor is provided with and is used for holding damping module's cavity, damping module be located in the cavity and with cutter arbor normal running fit, damping module includes quality spare and rotation piece, quality spare with rotate the piece and rotate and be connected, rotate the piece with the cavity inner wall supports pressure and roll fit.
By adopting the technical proposal, when the cutter cuts a workpiece, the cutter head can generate vibration, the energy generated by the vibration is transmitted to the cutter bar through the mounting seat and then transmitted to the vibration reduction module in the cavity body by the cutter bar,
The rotating piece rolls relative to the inner wall of the cavity and drives the mass piece to rotate in the cavity independently, so that most of vibration energy is converted into kinetic energy of the vibration reduction module, and rotation energy is consumed, so that vibration energy is absorbed, and vibration amplitude of the cutter bar is greatly reduced. Compared with the prior art, the vibration reduction effect of the cutter bar can be realized only by installing the vibration reduction module in the cavity, and the vibration reduction module has a simple structure and is convenient to assemble and maintain.
Optionally, the cavity is in a sphere shape.
By adopting the technical scheme, in the cutting process, the cutting direction can be changed in different directions in the beginning and the cutting process, so that the generated vibration direction can be changed along with the cutting direction, the contact position of the rotating piece and the cavity can be changed along with the cutting direction according to the difference of the vibration direction, the rotating piece drives the mass piece to move so as to generate rotation tracks in different directions, the cutter bar is not easy to generate vibration torsion in multiple directions, and the reliability and the stability of the cutter bar are improved.
Optionally, the rotating member is a runner, two runners are provided, the two runners are respectively located at two ends of the mass member, and the peripheral wall of the runner is in pressing and rolling fit with the inner wall of the cavity.
Through adopting above-mentioned technical scheme, give the runner with vibration energy transfer when the cutter arbor vibrates, according to the energy and the direction of vibration, two runners rotate at the inner wall of cavity to drive the quality spare and rotate in the cavity, turn into the kinetic energy that drive quality piece moved with the energy of most vibrations, reach the effect of damping.
Optionally, the rotating member is a rolling ball, two rolling balls are provided, the two rolling balls are respectively located at two ends of the mass member and are in spherical hinge with the mass member, and the peripheral wall of the rolling ball is in pressing and rolling fit with the inner wall of the cavity.
Through adopting above-mentioned technical scheme, when the cutter produced the change at the cutting direction, the contact point of spin and cavity inner wall also can produce the change, and the arc face of spin cooperates with the convex inner wall of cavity, has reduced the resistance that the vibration damping module rotated the received in the cavity, has improved the conversion rate that vibration energy converted into driving mass piece kinetic energy.
Optionally, the cutter arbor includes cutter arbor body and dismouting portion that is used for the mount pad, the cutter arbor body with dismouting portion can dismantle the connection, the cavity by the half cavity that the cutter arbor body set up with half cavity that dismouting portion set up constitutes.
Through adopting above-mentioned technical scheme, cutter arbor body can be dismantled with dismouting portion and be connected for vibration damping module's installation and maintenance operation are more convenient.
Optionally, the cross section of cutter arbor body is semi-circular, the cross section of dismouting portion is "protruding" font.
Through adopting above-mentioned technical scheme, according to the cutter arbor anchor clamps type of digit control machine tool, can select for use the terminal surface and anchor clamps looks adaptation that are semicircular cutter arbor body or are the dismouting portion of "protruding" font for the damping cutter arbor can be suitable for multiple digit control machine tool cutter arbor anchor clamps type, like drum type anchor clamps, upper and lower extrusion type anchor clamps etc..
Optionally, the mount pad is provided with the mounting groove, and the tool bit is located in the mounting groove through the bolt with the mount pad can dismantle and be connected.
Through adopting above-mentioned technical scheme, through bolt installation tool bit, when the tool bit produced the damage, be convenient for change the tool bit alone, reduced the produced high cost of whole change, improved the installation stability of tool bit simultaneously.
Optionally, the surface of the mounting seat and the surface of the cutter bar are both provided with a heat-conducting coating for heat dissipation.
Through adopting above-mentioned technical scheme, heat that heat conduction coating can be conducted mount pad and damping cutter arbor produced in cutting work, compares the cutter arbor that does not have heat conduction coating, and the temperature can reduce 45% for the use time length of cutter arbor and cutter increases greatly, also can reduce the temperature of damping module simultaneously, when damping module high-speed rotation, in with temperature control to certain within range, makes the performance that damping module absorbed vibration can maintain in a good state for a long time.
Optionally, the heat-conducting coating is coated by a heat-conducting coating, and the heat-conducting coating is prepared by mixing AIN and AL 203 according to the proportion of 1:1.25.
By adopting the technical scheme, the heat conducting performance of the cutter bar is greatly improved, and the stability and the service life of the cutter bar are improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. When the cutter cuts a workpiece, the cutter head can vibrate, energy generated by vibration is transmitted to the cutter bar through the mounting seat and then is transmitted to the vibration reduction module in the cavity by the cutter bar, the rotating piece rolls relative to the inner wall of the cavity and drives the mass piece to rotate in the cavity independently, so that most of the vibrating energy is converted into the kinetic energy of the vibration reduction module and is subjected to rotary energy consumption, vibration energy is absorbed, the amplitude of the cutter bar is greatly reduced, and the vibration reduction module is simple in structure and convenient to assemble and maintain.
2. In the cutting process of the cutter, the cutting direction can be changed in different directions in the beginning and the cutting process, so that the generated vibration direction can be changed along with the cutting direction, the contact position of the rotating piece and the cavity body can be changed along with the vibration direction, the rotating piece drives the mass piece to move so as to generate rotation tracks in different directions, the cutter bar is not easy to generate vibration torsion in multiple directions, and the reliability and the stability of the cutter bar are improved.
3. The cutter bar body can be detachably connected with the dismounting part, so that the installation and maintenance operation of the vibration reduction module are more convenient, according to the cutter bar clamp type of the numerical control machine tool, the semicircular cutter bar body or the end face of the dismounting part which is in a convex shape can be selected to be matched with the clamp, and the vibration reduction cutter bar can be applicable to various cutter bar clamp types of the numerical control machine tool, such as a cylindrical clamp, an up-down extrusion clamp and the like.
Drawings
FIG. 1 is a schematic view showing the overall structure of embodiment 1 of the present application;
FIG. 2 is an exploded view of example 1 of the present application;
FIG. 3 is a schematic view showing the structure of a vibration damping module according to embodiment 1 of the present application;
FIG. 4 is a graph of the present application with vibration reduction modules added and without vibration reduction modules;
fig. 5 is a schematic view showing the structure of a vibration damping module according to embodiment 2 of the present application.
Reference numerals illustrate:
1. a mounting base; 11. a mounting groove; 2. a cutter bar; 21. a cavity; 22. a cutter bar body; 23. a mounting/dismounting portion; 231. a mounting hole; 3. a vibration damping module; 31. a mass member; 32. and a rotating member.
Detailed Description
The application is described in further detail below with reference to fig. 1-5.
The embodiment of the application discloses an autonomous vibration reduction cutter bar.
Example 1:
referring to fig. 1, an autonomous vibration damping cutter bar includes a mounting base 1, a cutter bar 2, and a vibration damping module 3. The mounting seat 1 is used for mounting the tool bit, the cutter arbor 2 is mounted in the lathe of peripheral hardware, and damping module 3 is used for alleviating the vibration of cutter arbor 2 in the course of working, and mounting seat 1 and cutter arbor 2 can be dismantled and be connected, and damping module 3 installs in cutter arbor 2.
The mounting seat 1 is located the one end of cutter arbor 2, and mounting seat 1 is provided with the mounting groove 11 that is used for the adaptation tool bit, and the tool bit is located mounting groove 11, and the tool bit passes through the bolt and can dismantle with mounting seat 1 and be connected. In this embodiment, the mounting base 1 is detachably connected with the cutter bar 2 by bolts. On the one hand, when the tool bit or the mounting seat 1 is damaged, the tool bit or the mounting seat 1 is convenient to be singly replaced, and the high cost caused by integral replacement is reduced.
Referring to fig. 2, the cutter bar 2 includes a cutter bar body 22 for mounting the mounting seat 1 and a dismounting portion 23, the cutter bar body 22 is detachably connected with the dismounting portion 23, an end surface of the cutter bar body 22 facing one of the rotating members 32 is semicircular, and an end surface of one of the rotating members 32, away from the dismounting portion 23, is in a shape of a "convex". In the present embodiment, the detachable portion 23 is provided with an installation hole 231 through which a bolt passes, and the cutter bar body 22 and the detachable portion 23 are detachably connected by the bolt. According to the cutter bar clamp type of the numerical control machine tool, the end face of the semicircular cutter bar body 22 or the convex dismounting part 23 can be matched with the clamp, so that the vibration reduction cutter bar can be suitable for various cutter bar clamp types of the numerical control machine tool, such as a cylindrical clamp, an up-down extrusion clamp and the like.
The cutter bar 2 is provided with a cavity 21 for accommodating the vibration reduction module 3, the vibration reduction module 3 is positioned in the cavity 21 and is in running fit with the cutter bar 2, and the cavity 21 is in a sphere shape. In this embodiment, the cavity 21 is located at the end of the cutter bar 2 near the mounting base 1, so as to facilitate more efficient conversion of vibration energy. The cavity 21 is composed of a half circular cavity formed by the cutter bar body 22 and a half circular cavity formed by the dismounting portion 23, and the complete cavity 21 is formed after the cutter bar body 22 and the dismounting portion 23 are mounted. The vibration damping module 3 is installed by only disassembling the cutter bar body 22 and the disassembling and assembling part 23, and the vibration damping module 3 is installed in the cavity 21, so that the installation and maintenance operation of the vibration damping module 3 are more convenient.
Referring to fig. 3, the vibration damping module 3 includes a mass member 31 and a rotating member 32, the mass member 31 is rotatably connected to the rotating member 32, and the rotating member 32 is pressed against and rollably engaged with the inner wall of the cavity 21. In this embodiment, the rotating members 32 are two rotating members, the rotating members are arranged in a shape of a cake, the mass members 31 are arranged in an oval shape, the mass members 31 are provided with avoiding grooves for avoiding the rotating members, the rotating members penetrate through the center points of the rotating members through rotating shafts and are rotationally connected with the mass members 31, the two rotating members 32 are respectively located at two ends of the long shaft of the mass members 31, and the peripheral walls of the two rotating members are respectively in pressing and rolling fit with the inner walls of the cavities 21.
During cutting, the tool bit produces vibration, and the cutter arbor 2 is given through mount pad 1 transmission to the energy that vibration produced, and the cutter arbor 2 begins to appear swinging, and vibration energy transmission is given to the vibration damping module 3 in the cavity 21 to the cutter arbor 2, and two runners roll for cavity 21 inner wall, thereby two runners roll and drive quality spare 31 and rotate in the cavity. In this process, the end of the vibration damping module 3 close to the cutter head has a larger amplitude than the end of the vibration damping module 3 remote from the cutter head, which swings up and down, and the vibration damping module 3 starts to rotate in the cavity 21.
In this embodiment, when the long axis of the mass member 32 is perpendicular to the axis of the tool bar, the end of the mass member 32 away from one of the rotating members 31 is the reference point, the lowest end of the cavity 21 is the point a, and the highest end of the cavity 21 is the point B, and the force F required for the mass member 31 to move from the point a to the point B can be calculated according to the structures of the vibration reduction module 3 and the cavity 21 in the vibration reduction tool bar. The calculation model is as follows:
Volume of the mass part:
Gravitational potential energy:
The initial velocity is 0, i.e. V 1 = 0m/s
Centripetal force:
In this embodiment, the mass member 31 is a uniform-density iron block with a long axis a=0.008 and a short axis b=0.004, and the rotary member 32 can be made small enough in practical production, and pi, ρ and g are constants, and the values pi=3.14, ρ=7.9×10 3 and g=10n/kg respectively.
Therefore:
F＝4ρvg＝15.8N
The force F required to move the mass member 31 from the low end to the high end is at least 16N.
When the acting force received by the vibration damping module 3 is greater than 16N, the vibration damping module 3 starts to perform circular motion relative to the cavity 21, most of vibration energy is converted into kinetic energy for driving the mass block to move according to the vibration energy and direction, and rotation energy consumption is performed, so that vibration energy is absorbed, the amplitude of the cutter bar 2 is greatly reduced, the vibration damping effect is achieved, and the stability of the long-overhanging cutter is enhanced.
And through turning experimental simulation, respectively obtaining the frequency response function amplitude values of the cutter bars with the vibration damping modules 3 and the cutter bars without the vibration damping modules 3, and carrying out modal experimental comparison on the cutter bars without the vibration damping modules 3 and the cutter bars with the vibration damping modules 3.
In this embodiment, the frequency response function amplitude of the cutter bar is extracted by loading with abaqus software. Through relevant literature search, the cutter bar natural frequency of the vibration reduction free module 3 is 300Hz, and experimental input data are as follows: the spindle rotation speed is 1100r/min, the axial cutting depth is 0.1mm, the feeding speed is 0.05mm/r, and the radial cutting width is 10mm.
Referring to fig. 4, the frequency ratio is a ratio of the frequency of the analog load to the natural frequency. When the cutter bar with the vibration damping module reaches the natural frequency (namely when the frequency ratio beta=1 in fig. 4), the amplitude of the cutter bar with the vibration damping module 3 is smaller than the amplitude of the frequency response function of the cutter bar without the vibration damping module 3. Compared with the cutter bar without the vibration damping module 3, the cutter bar with the vibration damping module 3 is separated into two peaks with equal amplitude in a target mode (namely, the interval of the frequency ratio beta=0.8 to beta=1.2 in fig. 4), and the amplitude of the frequency response function is reduced by 75%, so that the vibration damping module can well play a role in reducing the amplitude of the frequency response function of the cutter bar.
In the cutting process of the cutter, the cutting direction can be changed in different directions in the starting process and the cutting process, so that the generated vibration direction can be changed along with the cutting direction, the contact position of the rotating wheel and the cavity 21 can be changed along with the vibration direction, the rotating wheel drives the mass piece 31 to move so as to generate rotation tracks in different directions, the cutter bar 2 is not easy to generate vibration torsion in multiple directions, and the reliability and the stability of the cutter bar 2 are improved.
Further, a small amount of lubricating oil is arranged in the cavity. The friction force between the rotating wheel and the inner wall of the cavity 21 is reduced by the lubricating oil, the friction of the vibration reduction module 3 on the inner wall of the cavity is greatly reduced, the service lives of the cutter bar main body and the vibration reduction module 3 are prolonged, the rotation speed and time of the vibration reduction module 3 can be increased, and the vibration energy can be quickly and effectively converted into the vibration reduction module 3. Due to the shortened response time, the cutter bar 2 is used for cutting by matching with a cutter, so that the yield of the processed workpiece is improved.
In order to improve the heat conducting property of the vibration damping cutter bar 2, the stability and the service life of the cutter bar 2 are improved. The surface of the cutter bar 2 is provided with a heat-conducting coating for heat dissipation, the heat-conducting coating is coated by a heat-conducting coating, and the heat-conducting coating is prepared by mixing AIN and AL 203 according to the proportion of 1:1.25. The heat conduction coating can conduct the heat generated by the vibration reduction cutter bar 2 in the cutting work, compared with the cutter bar 2 without heat conduction coating, the temperature can be reduced by 45%, so that the use time of the cutter bar 2 and a cutter is greatly increased, meanwhile, the temperature of the vibration reduction module 3 can be reduced, the vibration reduction module 3 rotates at a high speed and is controlled to be within a certain range, and the vibration absorption performance of the vibration reduction module 3 can be maintained in a good state for a long time.
Example 2:
Referring to fig. 5, the present embodiment is different from embodiment 1 in that in the present embodiment, the rotating member 32 is a rolling ball, two rolling balls are provided, the two rolling balls are respectively located at two ends of the long axis of the mass member 31 and are ball-hinged with the mass member 31, and the peripheral wall of the rolling ball is in pressing and rolling fit with the inner wall of the cavity 21. When the cutting direction of the cutter changes, the contact point of the rolling ball and the inner wall of the cavity 21 also changes, the arc surface of the rolling ball is matched with the arc inner wall of the cavity 21, the resistance of the vibration reduction module 3 in the cavity 21 is reduced, and the conversion rate of the vibration energy into the motion kinetic energy of the driving mass block is improved.
The implementation principle of the autonomous vibration reduction cutter bar is as follows: when the cutter cuts a workpiece, the cutter head can vibrate, energy generated by vibration is transmitted to the cutter bar 2 through the mounting seat 1 and then transmitted to the vibration reduction module 3 in the cavity 21 by the cutter bar 2, the rotating piece 32 rolls on the inner wall of the cavity 21, the rotating piece 32 moves to drive the mass piece 31 to rotate independently in different directions in the cavity, so that most of vibration energy on the cutter bar 2 is converted into vibration of the vibration reduction module 3, and vibration amplitude of the cutter bar 2 is greatly reduced.
The foregoing description of the preferred embodiments of the present application should not be construed as limiting the scope of the application, wherein like parts are designated by like reference numerals, and it should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the foregoing description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a particular part, respectively. Therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. An autonomous vibration damping cutter bar, comprising:
the mounting seat (1) is used for mounting the tool bit;
the cutter bar (2) is arranged on a peripheral machine tool, and the mounting seat (1) is detachably connected with the cutter bar (2);
The vibration reduction module (3) is used for relieving the vibration of the cutter bar (2) in the processing process; the cutter bar (2) is provided with a cavity (21) for accommodating the vibration reduction module (3), the vibration reduction module (3) is positioned in the cavity (21) and is rotationally connected with the cutter bar (2), the vibration reduction module (3) comprises a mass part (31) and a rotating part (32), the mass part (31) is rotationally connected with the rotating part (32), and the rotating part (32) is in pressing and rolling fit with the inner wall of the cavity (21); when the cutter cuts a workpiece, the cutter head can vibrate, energy generated by vibration is transmitted to the cutter bar (2) through the mounting seat (1), and then transmitted to the vibration reduction module (3) in the cavity (21) through the cutter bar (2), the rotating piece (32) rolls on the inner wall of the cavity (21), and the rotating piece (32) moves to drive the mass piece (31) to rotate independently in different directions in the cavity, so that most of vibration energy on the cutter bar (2) is converted into movement of the vibration reduction module (3), and vibration amplitude of the cutter bar (2) is greatly reduced;
the mass piece (31) is arranged in an oval shape, and the cavity (21) is in a round sphere shape.
2. An autonomous vibration damping cutter bar as claimed in claim 1, characterized in that the rotating members (32) are two rotating wheels, the two rotating wheels are respectively positioned at two ends of the mass member (31), and the peripheral wall of the rotating wheels is in pressing and rolling fit with the inner wall of the cavity (21).
3. An autonomous vibration damping knife bar as claimed in claim 1, characterized in that the rotating member (32) is a rolling ball, two rolling balls are provided, the two rolling balls are respectively positioned at two ends of the mass member (31) and are in spherical hinge connection with the mass member (31), and the peripheral wall of the rolling ball is in pressing and rolling fit with the inner wall of the cavity (21).
4. An autonomous vibration damping knife bar as claimed in claim 1, characterized in that the knife bar (2) comprises a knife bar body (22) for mounting the mounting seat (1) and a dismounting portion (23), the knife bar body (22) being detachably connected to the dismounting portion (23).
5. The autonomous vibration damping knife bar as claimed in claim 4, characterized in that the knife bar body (22) has a semicircular cross section and the dismounting portion (23) has a "convex" cross section.
6. An autonomous vibration damping cutter bar as claimed in claim 1, characterized in that the mounting seat (1) is provided with a mounting groove (11), and the cutter head is located in the mounting groove (11) and detachably connected with the mounting seat (1) by means of bolts.
7. An autonomous vibration damping knife bar as claimed in claim 1, characterized in that the surface of the mounting seat (1) and the knife bar (2) are both provided with a heat-conducting coating for heat dissipation.
8. The autonomous vibration damping knife bar of claim 7, wherein the thermally conductive coating is applied from a thermally conductive paint made from AIN and AL 203 mixed in a 1:1.25 ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210785018.1A CN115055987B (en) | 2022-07-05 | 2022-07-05 | Autonomous vibration damping cutter bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210785018.1A CN115055987B (en) | 2022-07-05 | 2022-07-05 | Autonomous vibration damping cutter bar |
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| Publication Number | Publication Date |
|---|---|
| CN115055987A CN115055987A (en) | 2022-09-16 |
| CN115055987B true CN115055987B (en) | 2024-05-28 |
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| CN202210785018.1A Active CN115055987B (en) | 2022-07-05 | 2022-07-05 | Autonomous vibration damping cutter bar |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2316288A (en) * | 1938-01-08 | 1943-04-13 | Salomon Francois Marie Bernard | Device for preventing speed oscillations and vibrations of the rotary members of machines |
| US4558852A (en) * | 1982-03-11 | 1985-12-17 | Sig Schweizerische Industrie-Gesellschaft | Vibration damper with linearly reciprocating mass |
| JP2006102837A (en) * | 2004-10-01 | 2006-04-20 | Sumitomo Electric Hardmetal Corp | Vibration absorbing cutting tool |
| CN1886223A (en) * | 2003-11-26 | 2006-12-27 | 住友电工硬质合金株式会社 | Vibration-damping cutting tool |
| CN204430390U (en) * | 2015-02-04 | 2015-07-01 | 北京航空航天大学 | A kind of impact damper system formula cutter bar of milling cutter |
| CN107378012A (en) * | 2017-07-25 | 2017-11-24 | 吉林工程技术师范学院 | A kind of machining tool |
| CN109702506A (en) * | 2018-12-07 | 2019-05-03 | 浙江工贸职业技术学院 | A kind of vibration-resistant tool bar |
| WO2020076189A1 (en) * | 2018-10-09 | 2020-04-16 | Эдуард Михайлович ГОЦ | Vibratory cutter for machining railway wheelsets and cutting insert |
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2022
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| US2316288A (en) * | 1938-01-08 | 1943-04-13 | Salomon Francois Marie Bernard | Device for preventing speed oscillations and vibrations of the rotary members of machines |
| US4558852A (en) * | 1982-03-11 | 1985-12-17 | Sig Schweizerische Industrie-Gesellschaft | Vibration damper with linearly reciprocating mass |
| CN1886223A (en) * | 2003-11-26 | 2006-12-27 | 住友电工硬质合金株式会社 | Vibration-damping cutting tool |
| JP2006102837A (en) * | 2004-10-01 | 2006-04-20 | Sumitomo Electric Hardmetal Corp | Vibration absorbing cutting tool |
| CN204430390U (en) * | 2015-02-04 | 2015-07-01 | 北京航空航天大学 | A kind of impact damper system formula cutter bar of milling cutter |
| CN107378012A (en) * | 2017-07-25 | 2017-11-24 | 吉林工程技术师范学院 | A kind of machining tool |
| WO2020076189A1 (en) * | 2018-10-09 | 2020-04-16 | Эдуард Михайлович ГОЦ | Vibratory cutter for machining railway wheelsets and cutting insert |
| CN109702506A (en) * | 2018-12-07 | 2019-05-03 | 浙江工贸职业技术学院 | A kind of vibration-resistant tool bar |
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| CN115055987A (en) | 2022-09-16 |
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