EP3838485A1 - Multi-dimensional vibration grinding cavity body - Google Patents
Multi-dimensional vibration grinding cavity body Download PDFInfo
- Publication number
- EP3838485A1 EP3838485A1 EP19218566.8A EP19218566A EP3838485A1 EP 3838485 A1 EP3838485 A1 EP 3838485A1 EP 19218566 A EP19218566 A EP 19218566A EP 3838485 A1 EP3838485 A1 EP 3838485A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cavity body
- ultrasonic vibration
- vibration
- grinding
- sources
- 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.)
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Links
- 239000002002 slurry Substances 0.000 claims abstract description 29
- 230000035939 shock Effects 0.000 claims description 25
- 238000010586 diagram Methods 0.000 description 10
- 230000003746 surface roughness Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/003—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor whereby the workpieces are mounted on a holder and are immersed in the abrasive material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/06—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers
- B24B31/064—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers the workpieces being fitted on a support
Definitions
- the present invention relates to a vibration grinding technology, and more particularly, to a multi-dimensional vibration grinding cavity body capable of treating complex surfaces and complex flow paths of additive layer manufacturing.
- the vibration grinder is commonly applied in the art.
- the main structure of the vibration grinder is a cavity body.
- a vibration source is disposed outside the cavity, and a vibration medium (abrasive, which can be solid or liquid) and a workpiece to be ground are disposed inside the cavity. After the vibration source is turned on, the workpiece and the abrasive rub each other with the tiny relative movement therebetween, such that the protruding material on the surface of the workpiece may be removed, so as to complete grinding the surface of the workpiece.
- a vibration medium abrasive, which can be solid or liquid
- vibration grinders use a motor as the vibration source, disposed below the vibration cavity, and a vibration adjustment device, configured to adjust the amplitude.
- This structure of the vibration grinder makes the abrasive flow converge toward a center of the cavity body to form a single fixed flow pattern. Therefore, there is a single directional rubbing between the abrasive and the workpiece to be ground. In other words, the workpiece will be ground in another direction after the vibration direction changed, but the grinding procedure is in low efficiency because of the direction of the medium flow and the centroid of the workpiece, causing a limited efficiency for grinding improvement.
- a single motor is applied as a vibration source in the prior art. Because the vibration frequency of the motor is not high, it can only make the grinding in the direction of the macroscopic flow and limit the performance of grinding.
- the present invention discloses a multi-dimensional vibration grinding cavity body. By adjusting amplitudes (power) and frequencies of the multi-dimensional ultrasonic vibration source, the multi-directional macroscopic flow is formed in the cavity body while keeping the vibration medium to have the original characteristics to improve the performance of grinding of slurry.
- a multi-dimensional vibration grinding cavity body comprises a cylindrical cavity body, configured to contain an abrasive slurry; at least four ultrasonic vibration sources, disposed uniformly around a sidewall of the cylindrical cavity body, wherein the plurality of ultrasonic vibration sources deliver shock waves toward an interior of the cylindrical cavity body, and directions of the plurality of shock waves, delivered by the plurality of ultrasonic vibration sources, form an angle with a direction of a tangent plane of the sidewall, on which the ultrasonic vibration sources are disposed, wherein the angle is 15°-45°, and the plurality of shock waves, delivered by the plurality of ultrasonic vibration sources, make a convolutional flow pattern of the abrasive slurry in the cylindrical cavity body; and a turntable disc, disposed inside a bottom of the cylindrical cavity body, wherein the turntable disc rotates in a direction cooperating with directions of the shock waves to enhance performance of the convolutional flow of the abrasive slurry
- a multi-dimensional vibration grinding cavity body comprises a cuboid cavity body, configured to contain an abrasive slurry; at least four ultrasonic vibration sources, disposed respectively on four sidewalls of the cuboid cavity body, and not in a central axis of the sidewall, wherein the plurality of ultrasonic vibration sources deliver a plurality of shock waves toward an interior of the cuboid cavity body, and the plurality of shock waves, delivered by the plurality of ultrasonic vibration sources, make a convolutional flow pattern of the abrasive slurry in the cylindrical cavity body; and a turntable disc, disposed inside a bottom of the cuboid cavity body, wherein the turntable disc rotates in a direction cooperating with directions of the shock waves to enhance performance of the convolutional flow of the abrasive slurry in the cuboid cavity body.
- the plurality of vibration frequencies of the ultrasonic vibration sources are 10KHz - 50KHz, and the vibration frequencies and amplitudes can be adjusted during the grinding process, to meet the requirements of the different workpiece and grinding mediums.
- At least one auxiliary ultrasonic vibration source is further disposed on the bottom of the cylindrical or cuboid cavity body.
- the plurality of vibration frequencies of the auxiliary ultrasonic vibration sources are 10KHz - 50KHz.
- the cuboid cavity body is by replacing a polygonal cavity body with at least four sides.
- FIG. 1-4 are schematic diagrams of a multi-dimensional vibration grinding cavity body according to a first embodiment of the present invention.
- the first embodiment comprises: a cuboid cavity body 11, configured to contain an abrasive slurry; at least four ultrasonic vibration sources 12, disposed respectively on four sidewalls of the cuboid cavity body, and not in a central axis of the sidewall, wherein the plurality of ultrasonic vibration sources 12 deliver a plurality of shock waves toward an interior of the cuboid cavity body 11; a turntable disc 13, disposed inside a bottom of the cuboid cavity body 11.
- FIG. 2 is a schematic diagram showing that in the first embodiment of the present invention, the at least four ultrasonic vibration sources 12 deliver a shock wave to make the slurry flow in the cuboid cavity body 11 and generate the convolutional flow, causing that the abrasive medium of slurry may enter the complex surface of the workpiece (not shown in the figure), which is needed to be processed and disposed inside the cuboid cavity body 11, to enhance the performance of grinding.
- the turntable disc 13 rotates in a direction cooperating with directions of the shock waves, which are delivered by the plurality of ultrasonic vibration sources 12, to enhance the performance of the convolutional flow of the abrasive slurry in the cuboid cavity body 11.
- the number and power of the ultrasonic vibration sources 12, and the frequency of the shock wave may be changed.
- the number of the ultrasonic vibration sources 12 is a multiple of 4, and the vibration frequencies of shock waves are 10KHz - 50KHz.
- FIG. 3 is a schematic diagram showing that in the first embodiment of the present invention, there is an included angle ⁇ , which is 15°-45°, between the ultrasonic vibration sources 12 and the sidewalls of the cuboid cavity body 11.
- the ultrasonic vibration sources 12 may deflect vertically or horizontally to enhance the horizontal and vertical flow component to the medium (slurry) in the cuboid cavity body 11 to solve the problem of uniformly flow energy with low fluidity medium and make the flow pattern of the medium (slurry) uniform.
- FIG. 4 is a schematic diagram showing that in the first embodiment of the present invention, at least one auxiliary ultrasonic vibration source 14 may be disposed on the bottom of the cuboid cavity body 11.
- the vibration of the auxiliary ultrasonic vibration source 14 is utilized to increase the up-and-down flow pattern of vibration.
- the 4 flow patterns shown in FIG. 4 , may be implemented.
- the diversity of the flow pattern of the medium in equipment may be increased to meet the requirements of different workpieces.
- FIG. 5-7 are schematic diagrams of a multi-dimensional vibration grinding cavity body according to a second embodiment of the present invention.
- the second embodiment comprises: a cylindrical cavity body 21, configured to contain an abrasive slurry; at least four ultrasonic vibration sources 22, disposed uniformly around a sidewall of the cylindrical cavity body 21, and directions of the plurality of shock waves, delivered by the plurality of ultrasonic vibration sources, form an included angle with a direction of a tangent plane of the sidewall, on which the ultrasonic vibration sources are disposed, wherein the angle is 15°-45°; a turntable disc 23, disposed on an inside of a bottom of the cylindrical cavity body 21.
- FIG. 6 is a schematic diagram showing that in the second embodiment of the present invention, the at least four ultrasonic vibration sources 22 deliver a shock wave to make the slurry flow in the cylindrical cavity body 21 and generate the convolutional flow, causing that the abrasive medium of slurry may enter the complex surface of the workpiece (not shown in the figure), which is needed to be processed and disposed inside the cylindrical cavity body 21, to enhance the performance of grinding.
- the turntable disc 23 rotates in a direction cooperating with directions of the shock waves, which are delivered by the plurality of ultrasonic vibration sources 22, to enhance the performance of the convolutional flow of the abrasive slurry in the cuboid cavity body 21.
- the number and power of the ultrasonic vibration sources 22, and the frequency of the shock wave may be changed.
- the number of the ultrasonic vibration sources 22 is a multiple of 4, and the vibration frequency of shock waves is 10KHz - 50KHz.
- FIG. 5 is a schematic diagram showing that in the second embodiment of the present invention, there is an included angle ⁇ , which is 15°-45°, between the ultrasonic vibration sources 22 and the sidewalls of the cylindrical cavity body 21.
- the ultrasonic vibration sources 22 may deflect vertically or horizontally to enhance the horizontal and vertical flow component to the medium (slurry) in the cuboid cavity body 21 to solve the problem of uniformly flow energy with low fluidity medium and make the flow pattern of the medium (slurry) uniform.
- FIG. 7 is a schematic diagram showing that in the second embodiment of the present invention, at least one auxiliary ultrasonic vibration source 24 may be disposed inside the bottom of the cylindrical cavity body 21 to cooperate with the plurality of the shock waves, which are delivered by the ultrasonic vibration sources 22 in the sidewalls.
- the vibration of the auxiliary ultrasonic vibration source 24 is utilized to increase the up-and-down flow pattern of vibration.
- the 4 flow patterns, shown in FIG. 7 may be implemented.
- the diversity of the flow pattern of the medium in equipment may be increased to meet the requirements of different workpieces.
- the present invention provides a multi-dimensional vibration grinding cavity body.
- the multi-dimensional vibration source controlling to form the multi-directional (convolutional) flow pattern of medium to meet the requirements of the different workpiece and grinding mediums and shorten the time for grinding, and control the direction precisely.
- Multiple vibration sources may control the direction of multi-directional macroscopic flow to help the vibration medium (the abrasive of the slurry) to enter the fine structure of the workpiece to be processed.
- the ultrasonic vibration sources and the turntable disc cooperate to generate the vibration in the convolutional flow pattern of slurry to grind. Not only the macroscopic flow but also the vibration of abrasive improves the performance of grinding to the workpiece to be ground.
Abstract
Description
- The present invention relates to a vibration grinding technology, and more particularly, to a multi-dimensional vibration grinding cavity body capable of treating complex surfaces and complex flow paths of additive layer manufacturing.
- To ensure that the surface roughness of a processed workpiece meets utilization requirements, there are many equipment and technologies for surface treatment currently, such as sandblast machine, ultrasonic lapping machine, abrasive flow machine, vibration grinding machines, etc. The object with better surface roughness may be obtained from the uneven surface produced by various grinding techniques. Before grinding, the surface of the workpiece was in a matte due to the surface roughness. After grinding, the surface roughness was significantly reduced to show a bright surface, and the detailed surface could meet the requirements of the workpiece.
- Regarding surface grinding equipment, the vibration grinder is commonly applied in the art. The main structure of the vibration grinder is a cavity body. A vibration source is disposed outside the cavity, and a vibration medium (abrasive, which can be solid or liquid) and a workpiece to be ground are disposed inside the cavity. After the vibration source is turned on, the workpiece and the abrasive rub each other with the tiny relative movement therebetween, such that the protruding material on the surface of the workpiece may be removed, so as to complete grinding the surface of the workpiece.
- Most of the commercial vibration grinders use a motor as the vibration source, disposed below the vibration cavity, and a vibration adjustment device, configured to adjust the amplitude. This structure of the vibration grinder makes the abrasive flow converge toward a center of the cavity body to form a single fixed flow pattern. Therefore, there is a single directional rubbing between the abrasive and the workpiece to be ground. In other words, the workpiece will be ground in another direction after the vibration direction changed, but the grinding procedure is in low efficiency because of the direction of the medium flow and the centroid of the workpiece, causing a limited efficiency for grinding improvement.
- In addition, because the direction of single flow pattern is fixed, it cost a lot of time for treating complex surfaces. And, because the abrasive cannot reach the curved deep surface in single flow pattern, some position of the surface cannot be ground, which reduces the efficiency of grinding operations.
- Moreover, a single motor is applied as a vibration source in the prior art. Because the vibration frequency of the motor is not high, it can only make the grinding in the direction of the macroscopic flow and limit the performance of grinding.
- It is therefore a primary objective of the present invention to provide a grinding cavity body of multiple vibration sources, which is more efficient than conventional vibration grinder, to improve over disadvantages of the prior art. The present invention discloses a multi-dimensional vibration grinding cavity body. By adjusting amplitudes (power) and frequencies of the multi-dimensional ultrasonic vibration source, the multi-directional macroscopic flow is formed in the cavity body while keeping the vibration medium to have the original characteristics to improve the performance of grinding of slurry.
- This is achieved by a multi-dimensional vibration grinding cavity body according to the independent claims 1 and 5 here below. The dependent claims pertain to corresponding further developments and improvements.
- As will be seen more clearly from the detailed description following below, a multi-dimensional vibration grinding cavity body comprises a cylindrical cavity body, configured to contain an abrasive slurry; at least four ultrasonic vibration sources, disposed uniformly around a sidewall of the cylindrical cavity body, wherein the plurality of ultrasonic vibration sources deliver shock waves toward an interior of the cylindrical cavity body, and directions of the plurality of shock waves, delivered by the plurality of ultrasonic vibration sources, form an angle with a direction of a tangent plane of the sidewall, on which the ultrasonic vibration sources are disposed, wherein the angle is 15°-45°, and the plurality of shock waves, delivered by the plurality of ultrasonic vibration sources, make a convolutional flow pattern of the abrasive slurry in the cylindrical cavity body; and a turntable disc, disposed inside a bottom of the cylindrical cavity body, wherein the turntable disc rotates in a direction cooperating with directions of the shock waves to enhance performance of the convolutional flow of the abrasive slurry in the cylindrical cavity body.
- In another aspect, a multi-dimensional vibration grinding cavity body comprises a cuboid cavity body, configured to contain an abrasive slurry; at least four ultrasonic vibration sources, disposed respectively on four sidewalls of the cuboid cavity body, and not in a central axis of the sidewall, wherein the plurality of ultrasonic vibration sources deliver a plurality of shock waves toward an interior of the cuboid cavity body, and the plurality of shock waves, delivered by the plurality of ultrasonic vibration sources, make a convolutional flow pattern of the abrasive slurry in the cylindrical cavity body; and a turntable disc, disposed inside a bottom of the cuboid cavity body, wherein the turntable disc rotates in a direction cooperating with directions of the shock waves to enhance performance of the convolutional flow of the abrasive slurry in the cuboid cavity body.
- In an embodiment of the present invention, the plurality of vibration frequencies of the ultrasonic vibration sources are 10KHz - 50KHz, and the vibration frequencies and amplitudes can be adjusted during the grinding process, to meet the requirements of the different workpiece and grinding mediums.
- In an embodiment of the present invention, at least one auxiliary ultrasonic vibration source is further disposed on the bottom of the cylindrical or cuboid cavity body.
- In an embodiment of the present invention, the plurality of vibration frequencies of the auxiliary ultrasonic vibration sources are 10KHz - 50KHz.
- In an embodiment of the present invention, the cuboid cavity body is by replacing a polygonal cavity body with at least four sides.
- In order to make the objects, technical solutions and advantages of the present invention become more apparent, the following relies on the accompanying drawings and embodiments to describe the present invention in further detail.
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FIG. 1-4 are schematic diagrams of a multi-dimensional vibration grinding cavity body according to a first embodiment of the present invention. -
FIG. 5-7 are schematic diagrams of a multi-dimensional vibration grinding cavity body according to a second embodiment of the present invention. -
FIG. 1-4 are schematic diagrams of a multi-dimensional vibration grinding cavity body according to a first embodiment of the present invention. Please refer toFIG. 1A , which is the first embodiment. The first embodiment comprises: acuboid cavity body 11, configured to contain an abrasive slurry; at least fourultrasonic vibration sources 12, disposed respectively on four sidewalls of the cuboid cavity body, and not in a central axis of the sidewall, wherein the plurality ofultrasonic vibration sources 12 deliver a plurality of shock waves toward an interior of thecuboid cavity body 11; aturntable disc 13, disposed inside a bottom of thecuboid cavity body 11. - Please refer to
FIG. 2 , which is a schematic diagram showing that in the first embodiment of the present invention, the at least fourultrasonic vibration sources 12 deliver a shock wave to make the slurry flow in thecuboid cavity body 11 and generate the convolutional flow, causing that the abrasive medium of slurry may enter the complex surface of the workpiece (not shown in the figure), which is needed to be processed and disposed inside thecuboid cavity body 11, to enhance the performance of grinding. Theturntable disc 13 rotates in a direction cooperating with directions of the shock waves, which are delivered by the plurality ofultrasonic vibration sources 12, to enhance the performance of the convolutional flow of the abrasive slurry in thecuboid cavity body 11. The number and power of theultrasonic vibration sources 12, and the frequency of the shock wave may be changed. Preferably, the number of theultrasonic vibration sources 12 is a multiple of 4, and the vibration frequencies of shock waves are 10KHz - 50KHz. - Please refer to
FIG. 3 , which is a schematic diagram showing that in the first embodiment of the present invention, there is an included angle θ, which is 15°-45°, between theultrasonic vibration sources 12 and the sidewalls of thecuboid cavity body 11. Theultrasonic vibration sources 12 may deflect vertically or horizontally to enhance the horizontal and vertical flow component to the medium (slurry) in thecuboid cavity body 11 to solve the problem of uniformly flow energy with low fluidity medium and make the flow pattern of the medium (slurry) uniform. - Please refer to
FIG. 4 , which is a schematic diagram showing that in the first embodiment of the present invention, at least one auxiliaryultrasonic vibration source 14 may be disposed on the bottom of thecuboid cavity body 11. The vibration of the auxiliaryultrasonic vibration source 14 is utilized to increase the up-and-down flow pattern of vibration. By adjusting the power and frequency according to the needs of each type of medium, the 4 flow patterns, shown inFIG. 4 , may be implemented. Thus, the diversity of the flow pattern of the medium in equipment may be increased to meet the requirements of different workpieces. -
FIG. 5-7 are schematic diagrams of a multi-dimensional vibration grinding cavity body according to a second embodiment of the present invention. Please refer toFIG. 5 , which is a cross-section view and a top view of the second embodiment. The second embodiment comprises: acylindrical cavity body 21, configured to contain an abrasive slurry; at least fourultrasonic vibration sources 22, disposed uniformly around a sidewall of thecylindrical cavity body 21, and directions of the plurality of shock waves, delivered by the plurality of ultrasonic vibration sources, form an included angle with a direction of a tangent plane of the sidewall, on which the ultrasonic vibration sources are disposed, wherein the angle is 15°-45°; aturntable disc 23, disposed on an inside of a bottom of thecylindrical cavity body 21. - Please refer to
FIG. 6 , which is a schematic diagram showing that in the second embodiment of the present invention, the at least fourultrasonic vibration sources 22 deliver a shock wave to make the slurry flow in thecylindrical cavity body 21 and generate the convolutional flow, causing that the abrasive medium of slurry may enter the complex surface of the workpiece (not shown in the figure), which is needed to be processed and disposed inside thecylindrical cavity body 21, to enhance the performance of grinding. Theturntable disc 23 rotates in a direction cooperating with directions of the shock waves, which are delivered by the plurality ofultrasonic vibration sources 22, to enhance the performance of the convolutional flow of the abrasive slurry in thecuboid cavity body 21. The number and power of theultrasonic vibration sources 22, and the frequency of the shock wave may be changed. Preferably, the number of theultrasonic vibration sources 22 is a multiple of 4, and the vibration frequency of shock waves is 10KHz - 50KHz. - Please refer to
FIG. 5 again, which is a schematic diagram showing that in the second embodiment of the present invention, there is an included angle θ, which is 15°-45°, between theultrasonic vibration sources 22 and the sidewalls of thecylindrical cavity body 21. Theultrasonic vibration sources 22 may deflect vertically or horizontally to enhance the horizontal and vertical flow component to the medium (slurry) in thecuboid cavity body 21 to solve the problem of uniformly flow energy with low fluidity medium and make the flow pattern of the medium (slurry) uniform. - Please refer to
FIG. 7 , which is a schematic diagram showing that in the second embodiment of the present invention, at least one auxiliaryultrasonic vibration source 24 may be disposed inside the bottom of thecylindrical cavity body 21 to cooperate with the plurality of the shock waves, which are delivered by theultrasonic vibration sources 22 in the sidewalls. The vibration of the auxiliaryultrasonic vibration source 24 is utilized to increase the up-and-down flow pattern of vibration. By adjusting the power and frequency according to the needs of each type of medium, the 4 flow patterns, shown inFIG. 7 , may be implemented. Thus, the diversity of the flow pattern of the medium in equipment may be increased to meet the requirements of different workpieces. - Therefore, the present invention provides a multi-dimensional vibration grinding cavity body. By adjusting amplitudes (power) and frequencies of the multi-dimensional ultrasonic vibration source, the multi-directional macroscopic flow is formed in the cavity body while keeping the vibration medium to have the original characteristics to improve the performance of grinding of slurry. The present invention utilizes the multi-dimensional vibration source controlling to form the multi-directional (convolutional) flow pattern of medium to meet the requirements of the different workpiece and grinding mediums and shorten the time for grinding, and control the direction precisely. Multiple vibration sources may control the direction of multi-directional macroscopic flow to help the vibration medium (the abrasive of the slurry) to enter the fine structure of the workpiece to be processed. The ultrasonic vibration sources and the turntable disc cooperate to generate the vibration in the convolutional flow pattern of slurry to grind. Not only the macroscopic flow but also the vibration of abrasive improves the performance of grinding to the workpiece to be ground.
Claims (9)
- A multi-dimensional vibration grinding cavity body, characterised by, comprising:a cylindrical cavity body (21), configured to contain an abrasive slurry;at least four ultrasonic vibration sources (22), disposed uniformly around a sidewall of the cylindrical cavity body (21), wherein the plurality of ultrasonic vibration sources (22) deliver shock waves toward an interior of the cylindrical cavity body (21), and directions of the plurality of shock waves, delivered by the plurality of ultrasonic vibration sources (22), form an angle with a direction of a tangent plane of the sidewall, on which the ultrasonic vibration sources (22) are disposed, wherein the angle is 15°-45°, and the plurality of shock waves, delivered by the plurality of ultrasonic vibration sources (22), make a convolutional flow pattern of the abrasive slurry in the cylindrical cavity body (21); anda turntable disc (23), disposed inside a bottom of the cylindrical cavity body (21), wherein the turntable disc (23) rotates in a direction cooperating with directions of the shock waves to enhance performance of the convolutional flow of the abrasive slurry in the cylindrical cavity body (21).
- The multi-dimensional vibration grinding cavity body of claim 1, characterised in that vibration frequencies of the ultrasonic vibration sources (22) are 10KHz - 50KHz.
- The multi-dimensional vibration grinding cavity body of claim 1, characterised in that further comprising at least one auxiliary ultrasonic vibration source (24), disposed on the bottom of the cylindrical cavity body (21).
- The multi-dimensional vibration grinding cavity body of claim 3, characterised in that a vibration frequency of the at least one auxiliary ultrasonic vibration source (24) is 10KHz - 50KHz.
- A multi-dimensional vibration grinding cavity body, characterised by, comprising:a cuboid cavity body (11), configured to contain an abrasive slurry;at least four ultrasonic vibration sources (12), disposed respectively on four sidewalls of the cuboid cavity body (11), and not in a central axis of the sidewall, wherein the plurality of ultrasonic vibration sources (12) deliver a plurality of shock waves toward an interior of the cuboid cavity body (11), and the plurality of shock waves, delivered by the plurality of ultrasonic vibration sources (12), make a convolutional flow pattern of the abrasive slurry in the cuboid cavity body (11); anda turntable disc (13), disposed inside a bottom of the cuboid cavity body (11), wherein the turntable disc (13) rotates in a direction cooperating with directions of the shock waves to enhance performance of the convolutional flow of the abrasive slurry in the cuboid cavity body (11).
- The multi-dimensional vibration grinding cavity body of claim 5, characterised in that vibration frequencies of the ultrasonic vibration sources (12) are 10KHz - 50KHz.
- The multi-dimensional vibration grinding cavity body of claim 5, characterised in that further comprising at least one auxiliary ultrasonic vibration source (14), disposed on the bottom of the cuboid cavity body (11).
- The multi-dimensional vibration grinding cavity body of claim 7, characterised in that a vibration frequency of the at least one auxiliary ultrasonic vibration source (14) is 10KHz - 50KHz.
- The multi-dimensional vibration grinding cavity body of claim 5, characterised in that the cuboid cavity body (11) is by replacing a polygonal cavity body with at least four sides.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210187699A1 (en) * | 2019-12-18 | 2021-06-24 | National Chung-Shan Institute Of Science And Technology | Multi-Dimensional Vibration Grinding Cavity Body |
US20210187686A1 (en) * | 2019-12-18 | 2021-06-24 | National Chung-Shan Institute Of Science And Technology | Grinding Cavity Body of Multiple Vibration Sources |
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US4171852A (en) * | 1977-06-27 | 1979-10-23 | Haentjens Walter D | Propulsion of slurry along a pipeline by ultrasonic sound waves |
EP2886247A1 (en) * | 2013-12-18 | 2015-06-24 | BAE Systems PLC | Surface Finishing of Components |
CN108673329A (en) * | 2018-05-14 | 2018-10-19 | 新乡学院 | Vacuum type ultrasound magnetic force cleans polisher lapper |
-
2019
- 2019-12-20 EP EP19218566.8A patent/EP3838485B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4171852A (en) * | 1977-06-27 | 1979-10-23 | Haentjens Walter D | Propulsion of slurry along a pipeline by ultrasonic sound waves |
EP2886247A1 (en) * | 2013-12-18 | 2015-06-24 | BAE Systems PLC | Surface Finishing of Components |
CN108673329A (en) * | 2018-05-14 | 2018-10-19 | 新乡学院 | Vacuum type ultrasound magnetic force cleans polisher lapper |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210187699A1 (en) * | 2019-12-18 | 2021-06-24 | National Chung-Shan Institute Of Science And Technology | Multi-Dimensional Vibration Grinding Cavity Body |
US20210187686A1 (en) * | 2019-12-18 | 2021-06-24 | National Chung-Shan Institute Of Science And Technology | Grinding Cavity Body of Multiple Vibration Sources |
US11628539B2 (en) * | 2019-12-18 | 2023-04-18 | National Chung-Shan Institute Of Science And Technology | Multi-dimensional vibration grinding cavity body |
US11633824B2 (en) * | 2019-12-18 | 2023-04-25 | National Chung-Shan Institute Of Science And Technology | Grinding cavity body of multiple vibration sources |
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