CN112443621A - Passive damper for inhibiting cutting vibration of thin-wall workpiece - Google Patents
Passive damper for inhibiting cutting vibration of thin-wall workpiece Download PDFInfo
- Publication number
- CN112443621A CN112443621A CN202011231325.2A CN202011231325A CN112443621A CN 112443621 A CN112443621 A CN 112443621A CN 202011231325 A CN202011231325 A CN 202011231325A CN 112443621 A CN112443621 A CN 112443621A
- Authority
- CN
- China
- Prior art keywords
- vibration
- thin
- vacuum
- mass
- damping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0232—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention belongs to the technical field of cutting processing, and provides a passive damper for inhibiting the cutting vibration of a thin-wall workpiece, which comprises a vacuum connection unit, a vibration inhibiting unit and a bandwidth adjusting unit.
Description
Technical Field
The invention belongs to the technical field of cutting machining, and particularly relates to a passive damper for inhibiting cutting vibration of a thin-wall workpiece.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
Thin-walled workpieces are ubiquitous in the aerospace field. The weak rigidity of the thin-wall part easily causes cutting vibration, so that series of hazards such as deterioration of the quality of a processed surface, aggravation of tool abrasion and the like are caused, and the dynamic characteristics and the cutting stability of the thin-wall part are difficult to accurately predict along with the rapid removal of thin-wall workpiece materials and the rapid change of tool tracks.
Passive dampers are an effective method for damping vibration in thin-walled workpieces during machining. Aiming at the cutting vibration of thin-wall workpieces, a spring-mass unit is usually adopted for a dynamic vibration absorber, the vibration absorbing effect is good, but the vibration suppression bandwidth is small, the vibration suppression bandwidth of a single damping type energy consumption damper is large, but the damping efficiency is low, and due to structural limitation, the bandwidth of a passive damper is difficult to adjust, the adjustable range is small, so that the design and the processing of the damper are repeatedly carried out aiming at different thin-wall workpieces, and the processing efficiency is low. In the installation process, the installation of the passive damper usually adopts a glue adhesion or bolt fastening mode, which can affect or damage the surface of the thin-wall workpiece and affect the use of the thin-wall workpiece.
Disclosure of Invention
The invention aims to at least solve the problems that a damper used for cutting machining in the prior art is easy to damage a thin-wall workpiece in clamping and the vibration suppression bandwidth is inconvenient to adjust, and the aim is realized by the following technical scheme:
the invention provides a passive damper for inhibiting cutting vibration of a thin-wall workpiece, which is characterized by comprising the following components in percentage by weight:
the vacuum connection unit is used for connecting the thin-wall workpiece in a vacuum adsorption mode;
the vibration suppression unit comprises a fixing part and a vibration mass part sleeved on the outer side of the fixing part, the fixing part is fixedly connected with the vacuum connecting unit, the vibration mass part is connected with the fixing part in a sliding mode and slides in a fixing range of the fixing part in the axial direction;
the bandwidth adjusting unit is connected with the vibration mass part, the axial direction of the bandwidth adjusting unit is parallel to the axial direction of the vibration suppression unit, and the bandwidth adjusting unit comprises at least one expansion mass disc and/or at least one expansion damping disc.
The passive damper is connected with the thin-wall workpiece in a vacuum adsorption mode through the vacuum connection unit, the design of a connection structure is not needed for different thin-wall workpieces, the thin-wall surface of the thin-wall workpiece cannot be damaged due to vacuum connection, when the thin-wall workpiece vibrates, the vibration suppression unit can convert and dissipate the vibration energy of the thin-wall workpiece, the damping of a system is improved, and therefore the flutter phenomenon of the thin-wall workpiece in milling is suppressed.
In addition, the passive damper according to the present invention may have the following additional technical features:
in some embodiments of the invention, the vacuum connection unit comprises:
the vacuum chuck is provided with an air hole and is used for adsorbing the surface of the thin-wall workpiece;
the vacuum adapter comprises an air inlet channel and an air outlet channel communicated with the air inlet channel, the vacuum adapter is connected to the vacuum sucker, the air inlet channel is communicated with the air hole, and the vacuum adapter is fixedly connected with the fixing part of the vibration suppression unit;
the first end of the vacuum rubber pipe is communicated with the air outlet channel of the vacuum adapter;
and the air inlet of the vacuum pump is communicated with the second end of the vacuum rubber hose.
In some embodiments of the present invention, the vibration suppressing unit further includes a connecting rod, the fixing portion is fixedly connected to the vacuum connecting unit through the connecting rod, a distance between the fixing portion and the vacuum connecting unit is greater than or equal to the fixing range, the vibration mass portion includes an end cap and a vibration-extended mass plate, the vibration-extended mass plate includes a body portion sleeved on the fixing portion and a plate portion disposed along a circumferential direction of the body portion, the body portion is cylindrical, a moving space for the vibration mass portion to slide relative to the fixing portion is formed inside the body portion, a first through hole for the connecting rod to pass through is formed at a bottom end of the body portion, and the end cap closes an opening end of the body portion.
In some embodiments of the present invention, the vibration suppressing unit further includes a friction sleeve, the friction sleeve is fitted to an outer side of the fixing portion, and an outer wall surface of the friction sleeve is fitted to an inner wall surface of the body portion of the vibration-expanding mass plate.
In some embodiments of the present invention, the passive damper further includes at least one bolt hole provided on the disk portion and at least one fixing screw matched with the bolt hole, and the bandwidth adjusting unit includes at least one extended mass disk and at least one extended damping disk, and the extended mass disk and/or the extended damping disk are fixedly connected with the disk portion by the fixing screw.
In some embodiments of the invention, a second through hole in the end cap.
In some embodiments of the invention, the body portion of the vibration extension mass tray is of a cylindrical configuration and the fixed portion is of a cylindrical configuration.
In some embodiments of the invention, the air inlet channel and the vacuum adapter are coaxially arranged, the air outlet channel is orthogonal to the air inlet channel, a threaded hole coaxial with the vacuum adapter is formed in the top end of the vacuum adapter, the vibration suppression unit further comprises a connecting rod, the fixing part is connected with one end of the connecting rod, and the other end of the connecting rod is in threaded connection with the threaded hole.
In some embodiments of the present invention, the number of the extended mass disks is at least two, the number of the extended damping disks is at least one, and one extended damping disk is sandwiched between two adjacent extended mass disks.
In some embodiments of the present invention, the mass expansion disc and the damping expansion disc are both disc-shaped, and a through hole is provided between the mass expansion disc and the damping expansion disc for the vibration damping unit to pass through.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
FIG. 1 schematically illustrates a cross-sectional view of a damper according to an embodiment of the present invention;
FIG. 2 schematically shows a structural view of a vacuum coupling unit of the damper according to an embodiment of the present invention;
figure 3 schematically illustrates a cross-sectional view of a vacuum adapter of a damper according to an embodiment of the present invention;
FIG. 4 schematically shows a cross-sectional view of a damping unit of a damper according to an embodiment of the present invention;
figure 5 schematically shows a top view schematic of a vibrating mass portion of a damper according to an embodiment of the invention;
FIG. 6 schematically shows a cross-sectional view of a damping unit of a damper in cooperation with a bandwidth adjusting unit according to an embodiment of the present invention;
FIG. 7 schematically illustrates a top view of a damping unit cooperating with a bandwidth adjustment unit of a damper according to an embodiment of the present invention;
FIG. 8 schematically illustrates an exploded view of a damper according to an embodiment of the present invention;
FIG. 9 schematically shows a structural view of a damper according to an embodiment of the present invention;
fig. 10 schematically shows a structural view of a damper according to an embodiment of the present invention when mounted on a thin-walled workpiece.
The reference symbols in the drawings denote the following:
1: vacuum connection unit, 11: vacuum chuck, 12: vacuum adapter, 13: vacuum hose, 14: vacuum pump, 121: air intake duct, 122: gas outlet channel, 123: a threaded hole;
2: damping unit, 21: end cap, 211: first through hole, 22: vibration mass portion, 221: body portion, 222: disk portion, 223: bolt hole, 224: second through hole, 23: friction sleeve, 24: fixing portion, 25: connecting rod, 26: a cavity;
3: bandwidth adjusting unit, 31: set screw, 32: extended quality disc, 33: and expanding the damping disc.
4: a thin-walled workpiece;
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "second" and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, an element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "inner", "side", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 10, the present invention provides a passive damper for suppressing cutting vibration of a thin-walled workpiece, for suppressing vibration of the thin-walled workpiece 4 during a cutting process, the passive damper comprising:
the vacuum connection unit 1 is used for connecting the thin-wall workpiece 4 in a vacuum adsorption mode;
the vibration suppression unit 2 comprises a fixing part 24 and a vibration mass part 22 sleeved outside the fixing part 24, the fixing part 24 is fixedly connected with the vacuum connection unit 1, the vibration mass part 22 is connected with the fixing part 24 in a mode, and the vibration mass part 22 slides in a fixing range of the fixing part 24 in the axial direction, for example, the vibration mass part 22 slides in a mode of being sleeved on the fixing part 24 or the fixing part 24 slides in a mode of being sleeved on the vibration mass part;
and the bandwidth adjusting unit 3, the bandwidth adjusting unit 3 is connected with the vibration mass part 22, the axial direction of the bandwidth adjusting unit 3 is parallel to the axial direction of the vibration suppression unit 2, and the bandwidth adjusting unit 3 comprises at least one expanded mass disc 32 and/or at least one expanded damping disc 33. The size, the material, the installation quantity, the installation sequence and the installation mode of the expansion mass disc 32 and the expansion damping disc 33 can be flexibly changed according to different processing conditions and use requirements, so that the mass ratio and the damping ratio of the damper can be flexibly adjusted, and the damper can meet the requirements of processing and vibration suppression in a wider vibration frequency band range.
The passive damper provided by the invention is connected with the thin-wall workpiece 4 in a vacuum adsorption way through the vacuum connection unit 1, the design of a connection structure for different thin-wall workpieces 4 is not needed, the thin-wall surface of the thin-wall workpiece 4 is not damaged by the vacuum connection, when the thin-wall workpiece 4 vibrates, the vibration suppression unit 2 absorbs and converts the vibration energy of the thin-wall workpiece 4 so as to improve the damping of the system, suppress the vibration phenomenon of the thin-wall workpiece 4 in the milling process, and the damper still includes bandwidth regulating unit 3, and bandwidth regulating unit 3 can be according to the nimble convenient quality ratio and the damping ratio to the damper of using in the demand and adjust, very big improvement lead to the current situation that needs redesign damper because of the demand changes, make the range of application of damper wider, also significantly reduced the design work of repeatability, improved whole machining efficiency.
In some embodiments of the present invention, the vacuum connection unit 1 comprises:
the vacuum chuck 11 is provided with air holes, and the vacuum chuck 11 is used for adsorbing the surface of the thin-wall workpiece 4;
the vacuum adapter 12 comprises an air inlet channel 121 and an air outlet channel 122 communicated with the air inlet channel 121, one end of the vacuum adapter 12 provided with the air inlet channel 121 is connected with the vacuum sucker 11, the air inlet channel 121 is communicated with an air hole of the vacuum sucker 11, and the vacuum adapter 12 is fixedly connected with the fixing part 24 of the vibration suppression unit 2;
the first end of the vacuum rubber pipe 13 is communicated with the air outlet channel 122 of the vacuum adapter 12;
and a vacuum pump 14, wherein an air inlet of the vacuum pump 14 is communicated with the second end of the vacuum hose 13.
The air inlet channel 121 and the air outlet channel 122 are communicated in the vacuum adapter 12 to form an air passage, so that air between the vacuum sucker 11 and the thin-wall workpiece 4 can be pumped out by the vacuum pump 14, a vacuum low-pressure environment is formed, and the damper is fixed on the thin-wall workpiece 4 to be processed, so that the surface characteristic of the thin-wall workpiece 4 cannot be changed due to chemical reaction between the damper and the surface of the thin-wall workpiece 4, the problems that the surface characteristic of the thin-wall workpiece 4 is influenced by gluing the traditional passive damper during installation and the surface integrity of the thin-wall workpiece 4 is damaged by fastening a bolt are solved, the damper can be installed on a common plane and also can be installed on a curved surface meeting a certain curvature condition, and the application range of the damper is.
In some embodiments of the present invention, the vibration suppressing unit 2 further includes a connecting rod 25, the fixing portion 24 is fixedly connected to the vacuum connecting unit 1 through the connecting rod 25, a space between the fixing portion 24 and the vacuum connecting unit 1 can accommodate the vibration mass portion 22 to slide along an axial direction of the fixing portion 24, the vibration mass portion 22 includes an end cap 21 and a vibration extension mass plate 32, the vibration extension mass plate 32 includes a body portion 221 sleeved on the fixing portion 24 and a disk portion 222 arranged along a circumferential direction of the body portion 221, the body portion 221 is cylindrical, a movable space for the vibration mass portion 22 to slide relative to the fixing portion 24 is formed inside the body portion 221, a bottom end of the body portion 221 is provided with a first through hole 211 for the connecting rod 25 to pass through, and the end cap 21 closes an open end of the body portion 221.
In addition, the vibration suppression unit can suppress the vibration in the thin-wall workpiece 4 processing in a composite damping mode, wherein the vibration suppression unit comprises impact damping, friction damping and air damping, the total damping coefficient c is cI (impact damping) + cf (friction damping) + cg (air damping), the vibration suppression effect is better, and the processing precision and the processing efficiency can be effectively improved.
In some embodiments of the invention, the fixed portion 24 is generally cylindrical, such as cylindrical or prismatic, and may collide with the vibrating mass portion 22 to exchange energy to provide impact damping c for the damperIThe value is determined by the gap b between the fixed portion 24 and the vibrating mass portion 22. When the thin-wall workpiece 4 vibrates, the vibration suppression unit 2 can convert the vibration energy of the thin-wall workpiece 4 into the kinetic energy of the vibration mass part 22 and the internal energy generated when the fixing part 24 collides with the vibration mass part 22, so that the vibration suppression unit plays a role in dissipating the vibration energy of the thin-wall workpiece 4 and suppresses the chattering phenomenon of the thin-wall workpiece 4 in the milling process.
In some embodiments of the present invention, the fixing portion 24 further includes a friction sleeve 23, the friction sleeve 23 is sleeved outside the fixing portion 24, and an outer wall surface of the friction sleeve 23 is attached to an inner wall surface of the body portion 221 of the vibration extension mass plate 32. The friction sleeve 23 and the vibration mass part 22 are assembled in an interference manner to have a certain pretightening force F, so that friction damping c is provided for the damperfFrictional damping cfThe energy loss equivalent can be found as:
when the thin-wall workpiece 4 vibrates, the vibration suppression unit 2 can convert the vibration energy of the thin-wall workpiece 4 into the kinetic energy of the vibration mass part 22, the heat energy generated by the friction between the friction sleeve 23 and the vibration mass part 22 and the internal energy generated when the fixing part 24 collides with the vibration mass part 22, so that the vibration suppression unit plays a role in dissipating the vibration energy of the thin-wall workpiece 4 and suppresses the chattering phenomenon of the thin-wall workpiece 4 in the milling process.
In some embodiments of the present invention, the end cap 21 is provided with a second through hole 224. Can provide gas damping c when the damper worksgGas damping cgThe value of the size of the aperture A in the end cap 21 is determined by the following equation:
when the thin-wall workpiece 4 vibrates, the vibration suppression unit 2 can convert the vibration energy of the thin-wall workpiece 4 into kinetic energy and heat energy generated when air in the cavity of the vibration mass part 22 is extruded from the second through hole 224 of the end cover 21, so that the vibration suppression unit plays a role in dissipating the vibration energy of the thin-wall workpiece 4 and suppresses the flutter phenomenon of the thin-wall workpiece 4 in milling.
In some embodiments of the present invention, the damper further comprises at least one bolt hole 223 disposed on the disk portion 222 of the vibration extension mass disk 32 and at least one fixing screw 31 matching with the bolt hole 223, and the extension mass disk 32 and/or the extension damping disk 33 are fixedly connected with the disk portion 222 through the fixing screw 31, so that the damper is convenient to assemble and disassemble, reliable to assemble, and not easy to loosen due to vibration
In some embodiments of the present invention, the body portion 221 of the vibration extension mass plate 32 is a cylindrical structure, and the fixing portion 24 is a cylindrical structure, so that the cylindrical and cylindrical structures are easy to process and stable to slide.
In some embodiments of the present invention, the air inlet channel 121 of the vacuum adapter 12 is coaxially disposed with the vacuum adapter 12, the air outlet channel 122 is orthogonal to the air inlet channel 121, the top end of the vacuum adapter 12 is provided with a threaded hole 123 coaxial with the vacuum adapter 12, one end of the connecting rod 25 far away from the fixing portion 24 is screwed with the threaded hole 123, the threaded connection structure is reliable and has good sealing performance, and the air outlet channel 122 is orthogonal to the air inlet channel 121 to stagger the installation positions of the vacuum chuck 11 and the vacuum rubber hose 13, which is convenient for assembly.
In some embodiments of the present invention, the passive damper further includes at least two extended mass discs 32 and at least one extended damping disc 33, and one extended damping disc 33 is sandwiched between two adjacent extended mass discs 32, so that the extended damping disc 33 generates damping between the extended mass discs 32 to absorb vibration generated when the thin-walled workpiece 4 is cut.
In some embodiments of the present invention, the extended mass plate 32 and the extended damping plate 33 are both disc-shaped, and a through hole is provided between the extended mass plate 32 and the extended damping plate 33 for the vibration damping unit 2 to pass through, which enables the bandwidth adjusting unit 3 and the vibration damping unit 2 to be coaxially disposed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A passive damper for damping cutting vibrations in a thin-walled workpiece, the passive damper comprising:
the vacuum connection unit is used for connecting the thin-wall workpiece in a vacuum adsorption mode;
the vibration suppression unit comprises a fixing part and a vibration mass part sleeved on the outer side of the fixing part, the fixing part is fixedly connected with the vacuum connecting unit, the vibration mass part is connected with the fixing part in a sliding mode and slides in a fixing range of the fixing part in the axial direction;
the bandwidth adjusting unit is connected with the vibration mass part, the axial direction of the bandwidth adjusting unit is parallel to the axial direction of the vibration suppression unit, and the bandwidth adjusting unit comprises at least one expansion mass disc and/or at least one expansion damping disc.
2. The passive damper for damping thin-walled workpiece cutting vibrations according to claim 1, wherein the vacuum attachment unit comprises:
the vacuum chuck is provided with an air hole and is used for adsorbing the surface of the thin-wall workpiece;
the vacuum adapter comprises an air inlet channel and an air outlet channel communicated with the air inlet channel, the vacuum adapter is connected to the vacuum sucker, the air inlet channel is communicated with the air hole, and the vacuum adapter is fixedly connected with the fixing part of the vibration suppression unit;
the first end of the vacuum rubber pipe is communicated with the air outlet channel of the vacuum adapter;
and the air inlet of the vacuum pump is communicated with the second end of the vacuum rubber hose.
3. The passive damper for suppressing cutting vibration of a thin-walled workpiece according to claim 1, wherein the vibration suppressing unit further includes a connecting rod, the fixing portion is fixedly connected to the vacuum connecting unit through the connecting rod, a distance between the fixing portion and the vacuum connecting unit is greater than or equal to the fixing range, the vibration mass portion includes an end cap and a vibration-extended mass plate, the vibration-extended mass plate includes a body portion sleeved on the fixing portion and a disk portion arranged in a circumferential direction of the body portion, the body portion is cylindrical, a moving space for the vibration mass portion to slide relative to the fixing portion is formed inside the body portion, a first through hole for the connecting rod to penetrate through is formed at a bottom end of the body portion, and the end cap closes an open end of the body portion.
4. The passive damper for suppressing cutting vibration of a thin-walled workpiece according to claim 3, wherein the vibration suppressing unit further comprises a friction bush fitted around the outside of the fixing portion, and an outer wall surface of the friction bush is in contact with an inner wall surface of the body portion of the vibration expanding mass plate.
5. The passive damper for damping cutting vibrations of thin-walled workpieces according to claim 3, further comprising at least one bolt hole provided in the disc portion and at least one fixing screw matched to the bolt hole, wherein the bandwidth adjusting unit comprises at least one extended mass disc and at least one extended damping disc, and wherein the extended mass disc and/or the extended damping disc are fixedly connected to the disc portion by the fixing screw.
6. The passive damper for damping cutting vibrations in a thin-walled workpiece of claim 3, wherein the second through hole in the end cap.
7. The passive damper for damping cutting vibrations of a thin-walled workpiece of claim 3, wherein the body portion of the vibration-expanding mass disc is of cylindrical construction and the fixed portion is of cylindrical construction.
8. The passive damper for suppressing cutting vibration of a thin-walled workpiece according to claim 2, wherein the air inlet channel is coaxially arranged with the vacuum adapter, the air outlet channel is orthogonal to the air inlet channel, a threaded hole coaxial with the vacuum adapter is formed in the top end of the vacuum adapter, the vibration suppression unit further comprises a connecting rod, the fixing portion is connected with one end of the connecting rod, and the other end of the connecting rod is in threaded connection with the threaded hole.
9. The passive damper for suppressing cutting vibration of a thin-walled workpiece according to any one of claims 1 to 8, wherein the number of the extended mass discs is at least two, the number of the extended mass discs is at least one, and one extended mass disc is sandwiched between two adjacent extended mass discs.
10. The passive damper for suppressing cutting vibration of a thin-walled workpiece as recited in any one of claims 1 to 8, wherein said expanding mass plate and said expanding damping plate are each a circular disk shape, and a through hole for passing said vibration suppressing unit is provided in the middle of each of said expanding mass plate and said expanding damping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011231325.2A CN112443621B (en) | 2020-11-06 | 2020-11-06 | Passive damper for inhibiting cutting vibration of thin-wall workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011231325.2A CN112443621B (en) | 2020-11-06 | 2020-11-06 | Passive damper for inhibiting cutting vibration of thin-wall workpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112443621A true CN112443621A (en) | 2021-03-05 |
| CN112443621B CN112443621B (en) | 2021-10-08 |
Family
ID=74735890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011231325.2A Active CN112443621B (en) | 2020-11-06 | 2020-11-06 | Passive damper for inhibiting cutting vibration of thin-wall workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112443621B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114147530A (en) * | 2021-12-02 | 2022-03-08 | 首都航天机械有限公司 | Cutting vibration damper |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2836532A1 (en) * | 2002-02-25 | 2003-08-29 | Bosch Gmbh Robert | Structure with anti-vibration device comprising mass, able to slide by friction on structure surface, having center hole for passage of fixing |
| CN1726355A (en) * | 2002-12-12 | 2006-01-25 | 株式会社富国 | Damper |
| DE102014223308A1 (en) * | 2013-11-27 | 2015-05-28 | Schaeffler Technologies AG & Co. KG | Clutch disc with absorber unit |
| CN105935795A (en) * | 2016-06-12 | 2016-09-14 | 哈尔滨理工大学 | Adjustable damping type vibration-attenuation and chatter-suppression device in milling process of thin-walled workpieces and vibration-attenuation method |
| CN207080543U (en) * | 2017-07-06 | 2018-03-09 | 南京华创交通设备有限公司 | A kind of high spring damping vibration isolator |
| CN207261562U (en) * | 2017-10-10 | 2018-04-20 | 湖南大学 | A kind of novel adjustable body quality bump leveller |
| DE102017203714A1 (en) * | 2017-03-07 | 2018-09-13 | Zf Friedrichshafen Ag | Mechanical damper device for a vehicle |
| CN108980276A (en) * | 2018-07-26 | 2018-12-11 | 华东交通大学 | A kind of high-speed rail train wheel damping ring based on phonon crystal |
-
2020
- 2020-11-06 CN CN202011231325.2A patent/CN112443621B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2836532A1 (en) * | 2002-02-25 | 2003-08-29 | Bosch Gmbh Robert | Structure with anti-vibration device comprising mass, able to slide by friction on structure surface, having center hole for passage of fixing |
| CN1726355A (en) * | 2002-12-12 | 2006-01-25 | 株式会社富国 | Damper |
| DE102014223308A1 (en) * | 2013-11-27 | 2015-05-28 | Schaeffler Technologies AG & Co. KG | Clutch disc with absorber unit |
| CN105935795A (en) * | 2016-06-12 | 2016-09-14 | 哈尔滨理工大学 | Adjustable damping type vibration-attenuation and chatter-suppression device in milling process of thin-walled workpieces and vibration-attenuation method |
| DE102017203714A1 (en) * | 2017-03-07 | 2018-09-13 | Zf Friedrichshafen Ag | Mechanical damper device for a vehicle |
| CN207080543U (en) * | 2017-07-06 | 2018-03-09 | 南京华创交通设备有限公司 | A kind of high spring damping vibration isolator |
| CN207261562U (en) * | 2017-10-10 | 2018-04-20 | 湖南大学 | A kind of novel adjustable body quality bump leveller |
| CN108980276A (en) * | 2018-07-26 | 2018-12-11 | 华东交通大学 | A kind of high-speed rail train wheel damping ring based on phonon crystal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114147530A (en) * | 2021-12-02 | 2022-03-08 | 首都航天机械有限公司 | Cutting vibration damper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112443621B (en) | 2021-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112443621B (en) | Passive damper for inhibiting cutting vibration of thin-wall workpiece | |
| CA2361033C (en) | A holding chuck for a tire-wheel with a chatter-suppressing device | |
| KR101863144B1 (en) | Tool holder such as a boring head, a chuck, or a milling cutting arbor integrating a damping device | |
| CN111590092B (en) | Shock attenuation cooling device and have its lathe | |
| WO2018044216A1 (en) | Rotatable assemblies, machining bar assemblies and methods therefor | |
| CN109249043A (en) | Vibration damping lathe tool and its design method | |
| US8430610B2 (en) | Fluttering prevention device for working machine | |
| JP2008018510A5 (en) | ||
| US20170189971A1 (en) | Vibration Absorption Cutter Holder | |
| CN112846909B (en) | Thin-wall part cutting vibration suppression device | |
| CN106425296B (en) | A kind of processing method of SiCp/Al composite shaft class part end face thin wall small hole screw thread | |
| US8282319B2 (en) | Material removal tool with noise reduction features | |
| CN114192855B (en) | Vibration reduction milling cutter | |
| EP3351821B1 (en) | Twin-tube hydraulic damper with a vibration suppressing device | |
| CN213712297U (en) | Pipeline dynamic vibration absorber | |
| JP2024518285A (en) | Valve mechanism | |
| CN111522122B (en) | Rigid heat dissipation device for medium and small-caliber space reflector | |
| US11143258B2 (en) | Spiral inertia track vibration absorber | |
| US7100908B2 (en) | Shock absorber/pneumatic spring strut | |
| US20100084234A1 (en) | Dual constraint disc valve system for damper | |
| US20240035543A1 (en) | Damper devices, machine tools and method of assembling damper device | |
| CN105772824A (en) | Gear rod backward-tensioning tool handle | |
| CN112503029A (en) | Aircraft engine compressor and turbine reducing assembly | |
| CN106870069B (en) | Silencer pneumatic valve assembly | |
| US20240240563A1 (en) | Damper ring for reducing unwanted vibrations of a blisk, as well as blisk and turbomachine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |